[Pkg-mono-svn-commits] [SCM] mono-debugger branch, master, updated. debian/2.6.3-2-14-gfa909e2

Iain Lane laney at debian.org
Thu Oct 20 12:47:35 UTC 2011


The following commit has been merged in the master branch:
commit abe812482483d6c4aff81177e83ff4fd6b7e3c4e
Author: Jari Aalto <jari.aalto at cante.net>
Date:   Mon Oct 18 13:01:07 2010 +0300

    Imported Debian patch 2.6.3-2.1

diff --git a/ChangeLog b/ChangeLog
index cc2a0a9..b43d4c8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,37 +1,3 @@
-2010-07-31  Martin Baulig  <martin at ximian.com>
-
-	Welcome to GitHub :-)
-
-2010-06-09  Martin Baulig  <martin at ximian.com>
-
-	* backend/ProcessServant.cs: When attaching, compute initial
-	stackframe for all threads.
-
-2010-06-07  Martin Baulig  <martin at ximian.com>
-
-	* backend/server/x86-linux-ptrace.c: Use
-	mono_debugger_get_thread_abort_signal() instead of
-	mono_thread_get_abort_signal().
-
-	* backend/server/darwin-ptrace.c: Likewise.
-
-2010-06-07  Martin Baulig  <martin at ximian.com>
-
-	* configure.in: Require `mono-2', not `mono'.
-
-2010-07-15  Martin Baulig  <martin at ximian.com>
-
-	* configure.in: Support both 2.6 and trunk.
-
-	* backend/EventQueue.cs: Use the managed Monitor class instead of
-	glib's threading functions.
-
-	* backend/server/mutex.[ch]: Removed.
-
-2010-03-03  Miguel de Icaza  <miguel at novell.com>
-
-	* Apply patch from Priit Laes <plaes at plaes.org> to build with make -j
-
 2010-02-23  Martin Baulig  <martin at ximian.com>
 
 	* backend/SingleSteppingEngine.cs
diff --git a/Makefile.am b/Makefile.am
index 4a74e74..d59ab64 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = sysdeps interface languages classes backend symbolwriter frontend test build
+SUBDIRS = interface languages classes backend symbolwriter frontend test build
 
 DIST_SUBDIRS= doc $(SUBDIRS)
 
diff --git a/Makefile.in b/Makefile.in
index d39b6de..1224cde 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -155,6 +155,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
@@ -233,7 +234,7 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = sysdeps interface languages classes backend symbolwriter frontend test build
+SUBDIRS = interface languages classes backend symbolwriter frontend test build
 DIST_SUBDIRS = doc $(SUBDIRS)
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = mono-debugger.pc mono-debugger-frontend.pc
diff --git a/acinclude.m4 b/acinclude.m4
index bfb9076..447ce46 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1,3 +1,30 @@
+AC_DEFUN([CHECK_READLINE], [
+    lib="$1"
+
+    old_LIBS=$LIBS
+
+    LIBS="-ltermcap"
+    AC_TRY_LINK(,[tgetent();],[
+	READLINE_DEPLIBS=$LIBS
+    ],[
+	LIBS="-lcurses"
+	AC_TRY_LINK(,[tgetent();],[
+		READLINE_DEPLIBS=$LIBS
+	],[
+		LIBS="-lncurses"
+		AC_TRY_LINK(,[tgetent();],[
+			READLINE_DEPLIBS=$LIBS
+		],[
+			AC_MSG_ERROR([Cannot find termcap library])
+		])
+	])
+    ])
+
+    LIBS=$old_LIBS
+    AC_SUBST(READLINE_DEPLIBS)
+])
+
+
 AC_DEFUN([LINUX_NPTL_CHECK], [
    old_LIBS=$LIBS
    LIBS="$LIBS -lpthread"
diff --git a/backend/DebuggerServant.cs b/backend/DebuggerServant.cs
new file mode 100644
index 0000000..f1e751e
--- /dev/null
+++ b/backend/DebuggerServant.cs
@@ -0,0 +1,356 @@
+using System;
+using System.IO;
+using System.Text;
+using System.Threading;
+using System.Configuration;
+using System.Globalization;
+using System.Reflection;
+using System.Collections;
+using System.Collections.Specialized;
+using System.Runtime.InteropServices;
+using System.Runtime.Remoting;
+
+using Mono.Debugger.Backend;
+using Mono.Debugger.Languages;
+using Mono.Debugger.Languages.Mono;
+
+namespace Mono.Debugger.Backend
+{
+	internal class DebuggerServant : DebuggerMarshalByRefObject, IOperationHost, IDisposable
+	{
+		Debugger client;
+		DebuggerConfiguration config;
+		ThreadManager thread_manager;
+		Hashtable process_hash;
+		ProcessServant main_process;
+
+		internal DebuggerServant (Debugger client, ReportWriter writer,
+					  DebuggerConfiguration config)
+		{
+			this.client = client;
+			this.config = config;
+			Report.Initialize (writer);
+			ObjectCache.Initialize ();
+			thread_manager = new ThreadManager (this);
+			process_hash = Hashtable.Synchronized (new Hashtable ());
+			stopped_event = new ManualResetEvent (false);
+		}
+
+		public Debugger Client {
+			get { return client; }
+		}
+
+		public DebuggerConfiguration Configuration {
+			get { return config; }
+		}
+
+		internal ThreadManager ThreadManager {
+			get { return thread_manager; }
+		}
+
+		internal void OnModuleLoaded (Module module)
+		{
+			client.OnModuleLoadedEvent (module);
+		}
+
+		internal void OnModuleUnLoaded (Module module)
+		{
+			client.OnModuleUnLoadedEvent (module);
+		}
+
+		internal void OnMainProcessCreatedEvent (ProcessServant process)
+		{
+			process_hash.Add (process, process);
+			client.OnMainProcessCreatedEvent (process.Client);
+		}
+
+		internal void OnProcessCreatedEvent (ProcessServant process)
+		{
+			process_hash.Add (process, process);
+			client.OnProcessCreatedEvent (process.Client);
+		}
+
+		internal void OnTargetExitedEvent ()
+		{
+			client.OnTargetExitedEvent ();
+		}
+
+		internal void OnProcessExitedEvent (ProcessServant process)
+		{
+			process_hash.Remove (process);
+			client.OnProcessExitedEvent (process.Client);
+
+			if (process_hash.Count == 0)
+				OnTargetExitedEvent ();
+		}
+
+		internal void OnProcessExecdEvent (ProcessServant process)
+		{
+			client.OnProcessExecdEvent (process.Client);
+		}
+
+		internal void OnThreadCreatedEvent (Thread thread)
+		{
+			client.OnThreadCreatedEvent (thread);
+		}
+
+		internal void OnThreadExitedEvent (Thread thread)
+		{
+			client.OnThreadExitedEvent (thread);
+		}
+
+		internal void SendTargetEvent (SingleSteppingEngine sse, TargetEventArgs args)
+		{
+			try {
+				client.OnTargetEvent (sse.Thread, args);
+			} catch (Exception ex) {
+				Error ("{0} caught exception while sending {1}:\n{2}",
+				       sse, args, ex);
+			}
+		}
+
+		internal void OnEnterNestedBreakState (SingleSteppingEngine sse)
+		{
+			client.OnEnterNestedBreakState (sse.Thread);
+		}
+
+		internal void OnLeaveNestedBreakState (SingleSteppingEngine sse)
+		{
+			client.OnLeaveNestedBreakState (sse.Thread);
+		}
+
+		public void Kill ()
+		{
+			main_process = null;
+
+			ProcessServant[] procs;
+			lock (process_hash.SyncRoot) {
+				procs = new ProcessServant [process_hash.Count];
+				process_hash.Values.CopyTo (procs, 0);
+			}
+
+			foreach (ProcessServant proc in procs) {
+				proc.Kill ();
+			}
+		}
+
+		public bool CanDetach {
+			get {
+				return (main_process != null) && main_process.CanDetach;
+			}
+		}
+
+		public void Detach ()
+		{
+			if (main_process == null)
+				throw new TargetException (TargetError.NoTarget);
+			else if (!main_process.CanDetach)
+				throw new TargetException (TargetError.CannotDetach);
+
+			ProcessServant[] procs;
+			lock (process_hash.SyncRoot) {
+				procs = new ProcessServant [process_hash.Count];
+				process_hash.Values.CopyTo (procs, 0);
+			}
+
+			foreach (ProcessServant proc in procs) {
+				proc.Detach ();
+			}
+		}
+
+		public Process Run (DebuggerSession session, out CommandResult result)
+		{
+			check_disposed ();
+
+			if (main_process != null)
+				throw new TargetException (TargetError.AlreadyHaveTarget);
+
+			ProcessStart start = new ProcessStart (session);
+			main_process = thread_manager.StartApplication (start, out result);
+			return main_process.Client;
+		}
+
+		public Process Attach (DebuggerSession session, int pid, out CommandResult result)
+		{
+			check_disposed ();
+
+			if (main_process != null)
+				throw new TargetException (TargetError.AlreadyHaveTarget);
+
+			ProcessStart start = new ProcessStart (session, pid);
+			main_process = thread_manager.StartApplication (start, out result);
+			return main_process.Client;
+		}
+
+		public Process OpenCoreFile (DebuggerSession session, string core_file,
+					     out Thread[] threads)
+		{
+			check_disposed ();
+
+			if (main_process != null)
+				throw new TargetException (TargetError.AlreadyHaveTarget);
+
+			ProcessStart start = new ProcessStart (session, core_file);
+
+			main_process = thread_manager.OpenCoreFile (start, out threads);
+			process_hash.Add (main_process, main_process);
+			return main_process.Client;
+		}
+
+		public Process[] Processes {
+			get {
+				lock (process_hash.SyncRoot) {
+					int count = process_hash.Count;
+					Process[] procs = new Process [count];
+					ProcessServant[] servants = new ProcessServant [count];
+					process_hash.Values.CopyTo (servants, 0);
+					for (int i = 0; i < count; i++)
+						procs [i] = servants [i].Client;
+					return procs;
+				}
+			}
+		}
+
+		public void Error (string message, params object[] args)
+		{
+			Console.WriteLine ("ERROR: " + String.Format (message, args));
+		}
+
+#region Global Threading Model
+
+		ManualResetEvent stopped_event;
+		OperationCommandResult current_operation;
+
+		internal WaitHandle WaitHandle {
+			get { return stopped_event; }
+		}
+
+		internal CommandResult StartOperation (ThreadingModel model, SingleSteppingEngine caller)
+		{
+			if (!ThreadManager.InBackgroundThread)
+				throw new InternalError ();
+
+			if ((model & ThreadingModel.ThreadingMode) == ThreadingModel.Default) {
+				if (Inferior.HasThreadEvents)
+					model |= ThreadingModel.Single;
+				else
+					model |= ThreadingModel.Process;
+			}
+
+			if ((model & ThreadingModel.ThreadingMode) != ThreadingModel.Global)
+				return caller.Process.StartOperation (model, caller);
+
+			if (current_operation != null)
+				throw new TargetException (TargetError.NotStopped);
+
+			lock (this) {
+				stopped_event.Reset ();
+				current_operation = new GlobalCommandResult (this, model);
+			}
+
+			foreach (ProcessServant process in process_hash.Values) {
+				process.StartGlobalOperation (model, caller, current_operation);
+			}
+
+			return current_operation;
+		}
+
+		public void OperationCompleted (SingleSteppingEngine caller, TargetEventArgs result, ThreadingModel model)
+		{
+			if (!ThreadManager.InBackgroundThread)
+				throw new InternalError ();
+
+			foreach (ProcessServant process in process_hash.Values) {
+				process.OperationCompleted (caller, result, model);
+			}
+
+			lock (this) {
+				current_operation = null;
+				stopped_event.Set ();
+			}
+		}
+
+		WaitHandle IOperationHost.WaitHandle {
+			get { return stopped_event; }
+		}
+
+		void IOperationHost.SendResult (SingleSteppingEngine sse, TargetEventArgs args)
+		{
+			SendTargetEvent (sse, args);
+		}
+
+		void IOperationHost.Abort ()
+		{
+			foreach (ProcessServant process in process_hash.Values) {
+				process.Stop ();
+			}
+		}
+
+		protected class GlobalCommandResult : OperationCommandResult
+		{
+			public DebuggerServant Debugger {
+				get; private set;
+			}
+
+			internal override IOperationHost Host {
+				get { return Debugger; }
+			}
+
+			internal GlobalCommandResult (DebuggerServant debugger, ThreadingModel model)
+				: base (model)
+			{
+				this.Debugger = debugger;
+			}
+
+			internal override void OnExecd (SingleSteppingEngine new_thread)
+			{ }
+		}
+
+#endregion
+
+		//
+		// IDisposable
+		//
+
+		private bool disposed = false;
+
+		private void check_disposed ()
+		{
+			if (disposed)
+				throw new ObjectDisposedException ("Debugger");
+		}
+
+		protected virtual void Dispose (bool disposing)
+		{
+			// Check to see if Dispose has already been called.
+			lock (this) {
+				if (disposed)
+					return;
+
+				disposed = true;
+			}
+
+			// If this is a call to Dispose, dispose all managed resources.
+			if (disposing) {
+				if (thread_manager != null) {
+					thread_manager.Dispose ();
+					thread_manager = null;
+				}
+
+				ObjectCache.Shutdown ();
+			}
+		}
+
+		public void Dispose ()
+		{
+			Dispose (true);
+			// Take yourself off the Finalization queue
+			GC.SuppressFinalize (this);
+		}
+
+		~DebuggerServant ()
+		{
+			Dispose (false);
+		}
+	}
+}
diff --git a/backend/EventQueue.cs b/backend/EventQueue.cs
index a7e4ae3..4550cad 100644
--- a/backend/EventQueue.cs
+++ b/backend/EventQueue.cs
@@ -75,28 +75,47 @@ namespace Mono.Debugger.Backend
 
 	internal class DebuggerMutex : DebuggerWaitHandle
 	{
+		protected IntPtr handle;
+
+		[DllImport("monodebuggerserver")]
+		static extern IntPtr mono_debugger_mutex_new ();
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_mutex_free (IntPtr handle);
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_mutex_lock (IntPtr handle);
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_mutex_unlock (IntPtr handle);
+
+		[DllImport("monodebuggerserver")]
+		static extern bool mono_debugger_mutex_trylock (IntPtr handle);
+
 		public DebuggerMutex (string name)
 			: base (name)
-		{ }
+		{
+			handle = mono_debugger_mutex_new ();
+		}
 
 		public void Lock ()
 		{
 			Debug ("{0} locking {1}", CurrentThread, Name);
-			Monitor.Enter (this);
+			mono_debugger_mutex_lock (handle);
 			Debug ("{0} locked {1}", CurrentThread, Name);
 		}
 
 		public void Unlock ()
 		{
 			Debug ("{0} unlocking {1}", CurrentThread, Name);
-			Monitor.Exit (this);
+			mono_debugger_mutex_unlock (handle);
 			Debug ("{0} unlocked {1}", CurrentThread, Name);
 		}
 
 		public override bool TryLock ()
 		{
 			Debug ("{0} trying to lock {1}", CurrentThread, Name);
-			bool success = Monitor.TryEnter (this);
+			bool success = mono_debugger_mutex_trylock (handle);
 			if (success)
 				Debug ("{0} locked {1}", CurrentThread, Name);
 			else
@@ -105,25 +124,47 @@ namespace Mono.Debugger.Backend
 		}
 
 		protected override void DoDispose ()
-		{ }
+		{
+			mono_debugger_mutex_free (handle);
+			handle = IntPtr.Zero;
+		}
 	}
 
 	internal class DebuggerEventQueue : DebuggerMutex
 	{
+		IntPtr cond;
+
+		[DllImport("monodebuggerserver")]
+		static extern IntPtr mono_debugger_cond_new ();
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_cond_free (IntPtr handle);
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_cond_wait (IntPtr mutex, IntPtr cond);
+
+		[DllImport ("monodebuggerserver")]
+		static extern bool mono_debugger_cond_timed_wait (IntPtr mutex, IntPtr cond, int milliseconds);
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_cond_broadcast (IntPtr cond);
+
 		public DebuggerEventQueue (string name)
 			: base (name)
-		{ }
+		{
+			cond = mono_debugger_cond_new ();
+		}
 
 		public void Wait ()
 		{
 			Debug ("{0} waiting {1}", CurrentThread, Name);
-			Monitor.Wait (this);
+			mono_debugger_cond_wait (handle, cond);
 			Debug ("{0} done waiting {1}", CurrentThread, Name);
 		}
 
 		public bool Wait (int milliseconds) {
 			Debug ("{0} waiting {1}", CurrentThread, Name);
-			bool ret = Monitor.Wait (this, milliseconds);
+			bool ret = mono_debugger_cond_timed_wait (handle, cond, milliseconds);
 			Debug ("{0} done waiting {1}", CurrentThread, Name);
 			return ret;
 		}
@@ -131,10 +172,13 @@ namespace Mono.Debugger.Backend
 		public void Signal ()
 		{
 			Debug ("{0} signal {1}", CurrentThread, Name);
-			Monitor.Pulse (this);
+			mono_debugger_cond_broadcast (cond);
 		}
 
 		protected override void DoDispose ()
-		{ }
+		{
+			mono_debugger_cond_free (cond);
+			cond = IntPtr.Zero;
+		}
 	}
 }
diff --git a/backend/Inferior.cs b/backend/Inferior.cs
index f03e557..6596dbc 100644
--- a/backend/Inferior.cs
+++ b/backend/Inferior.cs
@@ -25,7 +25,7 @@ namespace Mono.Debugger.Backend
 
 		protected readonly ProcessStart start;
 
-		protected readonly Process process;
+		protected readonly ProcessServant process;
 		protected readonly DebuggerErrorHandler error_handler;
 		protected readonly BreakpointManager breakpoint_manager;
 		protected readonly AddressDomain address_domain;
@@ -309,7 +309,7 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		protected Inferior (ThreadManager thread_manager, Process process,
+		protected Inferior (ThreadManager thread_manager, ProcessServant process,
 				    ProcessStart start, BreakpointManager bpm,
 				    DebuggerErrorHandler error_handler,
 				    AddressDomain address_domain)
@@ -328,7 +328,7 @@ namespace Mono.Debugger.Backend
 		}
 
 		public static Inferior CreateInferior (ThreadManager thread_manager,
-						       Process process, ProcessStart start)
+						       ProcessServant process, ProcessStart start)
 		{
 			return new Inferior (
 				thread_manager, process, start, process.BreakpointManager, null,
@@ -620,7 +620,7 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		public Process Process {
+		public ProcessServant Process {
 			get {
 				return process;
 			}
@@ -1722,7 +1722,7 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		public static OperatingSystemBackend CreateOperatingSystemBackend (Process process)
+		public static OperatingSystemBackend CreateOperatingSystemBackend (ProcessServant process)
 		{
 			ServerType type = mono_debugger_server_get_server_type ();
 			switch (type) {
diff --git a/backend/Makefile.am b/backend/Makefile.am
index 3291f5a..6a86764 100644
--- a/backend/Makefile.am
+++ b/backend/Makefile.am
@@ -1,3 +1,3 @@
-SUBDIRS = arch os mono
+SUBDIRS = arch os mono server
 
 EXTRA_DIST = $(srcdir)/*.cs
diff --git a/backend/Makefile.in b/backend/Makefile.in
index 734eba7..066d991 100644
--- a/backend/Makefile.in
+++ b/backend/Makefile.in
@@ -129,6 +129,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
@@ -207,7 +208,7 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = arch os mono
+SUBDIRS = arch os mono server
 EXTRA_DIST = $(srcdir)/*.cs
 all: all-recursive
 
diff --git a/backend/ProcessServant.cs b/backend/ProcessServant.cs
new file mode 100644
index 0000000..9a157c1
--- /dev/null
+++ b/backend/ProcessServant.cs
@@ -0,0 +1,1011 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using ST = System.Threading;
+using System.Runtime.Serialization;
+using System.Runtime.Serialization.Formatters.Binary;
+
+using Mono.Debugger.Backend;
+using Mono.Debugger.Backend.Mono;
+using Mono.Debugger.Architectures;
+using Mono.Debugger.Languages;
+using Mono.Debugger.Languages.Native;
+using Mono.Debugger.Languages.Mono;
+
+namespace Mono.Debugger.Backend
+{
+	internal class ProcessServant : DebuggerMarshalByRefObject, IOperationHost
+	{
+		Process client;
+		TargetInfo target_info;
+		ThreadManager manager;
+		Architecture architecture;
+		OperatingSystemBackend os;
+		NativeLanguage native_language;
+		SymbolTableManager symtab_manager;
+		MonoThreadManager mono_manager;
+		BreakpointManager breakpoint_manager;
+		Dictionary<int,ExceptionCatchPoint> exception_handlers;
+		ProcessStart start;
+		DebuggerSession session;
+		protected MonoLanguageBackend mono_language;
+		protected ThreadServant main_thread;
+		Hashtable thread_hash;
+
+		ProcessServant parent;
+
+		ThreadDB thread_db;
+
+		bool is_attached;
+		bool is_execed;
+		bool is_forked;
+		bool initialized;
+		DebuggerMutex thread_lock_mutex;
+		bool has_thread_lock;
+
+		int id = ++next_id;
+		static int next_id = 0;
+
+		private ProcessServant (ThreadManager manager, DebuggerSession session)
+		{
+			this.manager = manager;
+			this.session = session;
+			this.client = manager.Debugger.Client.CreateProcess (this);
+
+			thread_lock_mutex = new DebuggerMutex ("thread_lock_mutex");
+
+			stopped_event = new ST.ManualResetEvent (false);
+
+			thread_hash = Hashtable.Synchronized (new Hashtable ());
+
+			target_info = Inferior.GetTargetInfo ();
+			if (target_info.TargetAddressSize == 8)
+				architecture = new Architecture_X86_64 (this, target_info);
+			else
+				architecture = new Architecture_I386 (this, target_info);
+		}
+
+		internal ProcessServant (ThreadManager manager, ProcessStart start)
+			: this (manager, start.Session)
+		{
+			this.start = start;
+
+			is_attached = start.PID != 0;
+
+			breakpoint_manager = new BreakpointManager ();
+
+			exception_handlers = new Dictionary<int,ExceptionCatchPoint> ();
+
+			symtab_manager = new SymbolTableManager (session);
+
+			os = Inferior.CreateOperatingSystemBackend (this);
+			native_language = new NativeLanguage (this, os, target_info);
+
+			session.OnProcessCreated (client);
+		}
+
+		private ProcessServant (ProcessServant parent, int pid)
+			: this (parent.manager, parent.session)
+		{
+			this.start = new ProcessStart (parent.ProcessStart, pid);
+
+			this.is_forked = true;
+			this.initialized = true;
+
+			this.parent = parent;
+
+			breakpoint_manager = new BreakpointManager (parent.breakpoint_manager);
+
+			exception_handlers = new Dictionary<int,ExceptionCatchPoint> ();
+			foreach (KeyValuePair<int,ExceptionCatchPoint> catchpoint in parent.exception_handlers)
+				exception_handlers.Add (catchpoint.Key, catchpoint.Value);
+
+			symtab_manager = parent.symtab_manager;
+
+			native_language = parent.native_language;
+			os = parent.os;
+		}
+
+		public int ID {
+			get { return id; }
+		}
+
+		public bool IsAttached {
+			get { return is_attached; }
+		}
+
+		public bool CanDetach {
+			get { return is_attached || Inferior.CanDetachAny; }
+		}
+
+		public bool IsExeced {
+			get { return is_execed; }
+		}
+
+		public Process Client {
+			get { return client; }
+		}
+
+		public DebuggerSession Session {
+			get { return session; }
+		}
+
+		internal ThreadManager ThreadManager {
+			get { return manager; }
+		}
+
+		internal Architecture Architecture {
+			get { return architecture; }
+		}
+
+		internal BreakpointManager BreakpointManager {
+			get { return breakpoint_manager; }
+		}
+
+		internal SymbolTableManager SymbolTableManager {
+			get {
+				return symtab_manager;
+			}
+		}
+
+		public NativeLanguage NativeLanguage {
+			get { return native_language; }
+		}
+
+		public OperatingSystemBackend OperatingSystem {
+			get { return os; }
+		}
+
+		public ThreadServant MainThread {
+			get { return main_thread; }
+		}
+
+		public DebuggerServant Debugger {
+			get { return manager.Debugger; }
+		}
+
+		internal ProcessStart ProcessStart {
+			get { return start; }
+		}
+
+		internal MonoThreadManager MonoManager {
+			get { return mono_manager; }
+		}
+
+		internal bool MonoRuntimeFound {
+			get; private set;
+		}
+
+		public bool IsManaged {
+			get { return mono_manager != null; }
+		}
+
+		internal bool CanExecuteCode {
+			get { return (mono_manager != null) && mono_manager.CanExecuteCode; }
+		}
+
+		public string TargetApplication {
+			get { return start.TargetApplication; }
+		}
+
+		public string[] CommandLineArguments {
+			get { return start.CommandLineArguments; }
+		}
+
+		internal ST.WaitHandle WaitHandle {
+			get { return stopped_event; }
+		}
+
+		internal void ThreadCreated (Inferior inferior, int pid, bool do_attach, bool resume_thread)
+		{
+			Inferior new_inferior = inferior.CreateThread (pid, do_attach);
+
+			SingleSteppingEngine new_thread = new SingleSteppingEngine (manager, this, new_inferior, pid);
+
+			Report.Debug (DebugFlags.Threads, "Thread created: {0} {1} {2}", pid, new_thread, do_attach);
+
+			if (mono_manager != null)
+				mono_manager.ThreadCreated (new_thread);
+
+			if (!do_attach && !is_execed)
+				get_thread_info (inferior, new_thread);
+			OnThreadCreatedEvent (new_thread);
+
+			if (resume_thread) {
+				CommandResult result = current_operation != null ?
+					current_operation : new ThreadCommandResult (new_thread.Thread);
+				new_thread.StartThread (result);
+			}
+		}
+
+		internal void ChildForked (Inferior inferior, int pid)
+		{
+			ProcessServant new_process = new ProcessServant (this, pid);
+			new_process.ProcessStart.StopInMain = false;
+
+			Inferior new_inferior = Inferior.CreateInferior (
+				manager, new_process, new_process.ProcessStart);
+			new_inferior.InitializeThread (pid);
+
+			if (!manager.Debugger.Configuration.FollowFork) {
+				new_inferior.DetachAfterFork ();
+				return;
+			}
+
+			SingleSteppingEngine new_thread = new SingleSteppingEngine (
+				manager, new_process, new_inferior, pid);
+
+			Report.Debug (DebugFlags.Threads, "Child forked: {0} {1}", pid, new_thread);
+
+			new_process.main_thread = new_thread;
+
+			manager.Debugger.OnProcessCreatedEvent (new_process);
+			new_process.OnThreadCreatedEvent (new_thread);
+
+			CommandResult result = new_process.CloneParentOperation (new_thread);
+			new_thread.StartForkedChild (result);
+		}
+
+		internal void ChildExecd (SingleSteppingEngine engine, Inferior inferior)
+		{
+			is_execed = true;
+
+			if (!is_forked) {
+				if (mono_language != null)
+					mono_language.Dispose();
+
+				if (native_language != null)
+					native_language.Dispose ();
+
+				if (os != null)
+					os.Dispose ();
+
+				if (symtab_manager != null)
+					symtab_manager.Dispose ();
+			}
+
+			if (breakpoint_manager != null)
+				breakpoint_manager.Dispose ();
+
+			session.OnProcessExecd (client);
+
+			breakpoint_manager = new BreakpointManager ();
+
+			exception_handlers = new Dictionary<int,ExceptionCatchPoint> ();
+
+			symtab_manager = new SymbolTableManager (session);
+
+			os = Inferior.CreateOperatingSystemBackend (this);
+			native_language = new NativeLanguage (this, os, target_info);
+
+			Inferior new_inferior = Inferior.CreateInferior (manager, this, start);
+			try {
+				new_inferior.InitializeAfterExec (inferior.PID);
+			} catch (Exception ex) {
+				if ((ex is TargetException) && (((TargetException) ex).Type == TargetError.PermissionDenied)) {
+					Report.Error ("Permission denied when trying to debug exec()ed child {0}, detaching!",
+						      inferior.PID);
+				} else {
+					Report.Error ("InitializeAfterExec() failed on pid {0}: {1}", inferior.PID, ex);
+				}
+				new_inferior.DetachAfterFork ();
+				return;
+			}
+
+			SingleSteppingEngine new_thread = new SingleSteppingEngine (
+				manager, this, new_inferior, inferior.PID);
+
+			ThreadServant[] threads;
+			lock (thread_hash.SyncRoot) {
+				threads = new ThreadServant [thread_hash.Count];
+				thread_hash.Values.CopyTo (threads, 0);
+			}
+
+			for (int i = 0; i < threads.Length; i++) {
+				if (threads [i].PID != inferior.PID)
+					threads [i].Kill ();
+			}
+
+			thread_hash [inferior.PID] = new_thread;
+
+			inferior.Dispose ();
+			inferior = null;
+
+			manager.Debugger.OnProcessExecdEvent (this);
+			manager.Debugger.OnThreadCreatedEvent (new_thread.Thread);
+			initialized = is_forked = false;
+			main_thread = new_thread;
+
+			if ((engine.Thread.ThreadFlags & Thread.Flags.StopOnExit) != 0)
+				new_thread.Thread.ThreadFlags |= Thread.Flags.StopOnExit;
+
+			CommandResult result = engine.OnExecd (new_thread);
+			new_thread.StartExecedChild (result);
+		}
+
+		internal CommandResult StartApplication ()
+		{
+			SingleSteppingEngine engine = new SingleSteppingEngine (manager, this, start);
+
+			initialized = true;
+
+			this.main_thread = engine;
+			engine.Thread.ThreadFlags |= Thread.Flags.StopOnExit;
+
+			if (thread_hash.Contains (engine.PID))
+				thread_hash [engine.PID] = engine;
+			else
+				thread_hash.Add (engine.PID, engine);
+			session.MainThreadGroup.AddThread (engine.Thread.ID);
+
+			session.OnMainProcessCreated (client);
+			manager.Debugger.OnMainProcessCreatedEvent (this);
+
+			CommandResult result = Debugger.StartOperation (start.Session.Config.ThreadingModel, engine);
+			return engine.StartApplication (result);
+		}
+
+		internal void OnProcessExitedEvent ()
+		{
+			DropGlobalThreadLock ();
+
+			if (current_state == ProcessState.Running) {
+				current_state = ProcessState.Exited;
+				current_operation.Completed ();
+				current_operation = null;
+				stopped_event.Set ();
+			}
+
+			if (!is_forked)
+				session.OnProcessExited (client);
+			session.MainThreadGroup.RemoveThread (main_thread.ID);
+			manager.Debugger.OnProcessExitedEvent (this);
+		}
+
+		protected void OnThreadCreatedEvent (ThreadServant thread)
+		{
+			thread_hash.Add (thread.PID, thread);
+			manager.Debugger.OnThreadCreatedEvent (thread.Client);
+		}
+
+		internal void OnManagedThreadExitedEvent (ThreadServant thread)
+		{
+			thread_hash.Remove (thread.PID);
+		}
+
+		internal void OnProcessReachedMainEvent ()
+		{
+			manager.Debugger.Client.OnProcessReachedMainEvent (client);
+		}
+
+		internal void OnThreadExitedEvent (ThreadServant thread)
+		{
+			thread_hash.Remove (thread.PID);
+			thread.ThreadGroup.RemoveThread (thread.ID);
+			session.DeleteThreadGroup (thread.ThreadGroup.Name);
+			manager.Debugger.OnThreadExitedEvent (thread.Client);
+
+			if (thread_hash.Count == 0)
+				OnProcessExitedEvent ();
+		}
+
+		internal void OnTargetOutput (bool is_stderr, string output)
+		{
+			client.OnTargetOutput (is_stderr, output);
+		}
+
+		internal void InitializeMono (Inferior inferior, TargetAddress mdb_debug_info)
+		{
+			MonoRuntimeFound = true;
+			mono_manager = MonoThreadManager.Initialize (this, inferior, mdb_debug_info, is_attached);
+
+			InitializeThreads (inferior, !is_attached);
+
+			if (mono_manager == null)
+				return;
+
+			mono_manager.InitializeThreads (inferior);
+
+			if (is_attached)
+				mono_manager.InitializeAfterAttach (inferior);
+		}
+
+		internal void InitializeThreads (Inferior inferior, bool resume_threads)
+		{
+			if (thread_db != null)
+				return;
+
+			thread_db = ThreadDB.Create (this, inferior);
+			if (thread_db == null) {
+				if (!IsManaged)
+					return;
+
+				Report.Error ("Failed to initialize thread_db on {0}", start.CommandLine);
+				throw new TargetException (TargetError.CannotStartTarget,
+							   "Failed to initialize thread_db on {0}", start.CommandLine);
+			}
+
+			int[] threads = inferior.GetThreads ();
+			foreach (int thread in threads) {
+				if (thread_hash.Contains (thread))
+					continue;
+				ThreadCreated (inferior, thread, Inferior.HasThreadEvents, resume_threads);
+			}
+
+			thread_db.GetThreadInfo (inferior, delegate (int lwp, long tid) {
+				SingleSteppingEngine engine = (SingleSteppingEngine) thread_hash [lwp];
+				if (engine == null) {
+					Report.Error ("Unknown thread {0} in {1}", lwp, start.CommandLine);
+					return;
+				}
+				engine.SetTID (tid);
+			});
+		}
+
+		public bool CheckForThreads(ArrayList check_threads)
+		{
+			if(thread_db == null)
+				return false;
+			thread_db.GetThreadInfo (null, delegate (int lwp, long tid) {
+				check_threads.Add(lwp);
+			} );
+			return true;
+		}
+
+		void get_thread_info (Inferior inferior, SingleSteppingEngine engine)
+		{
+			if (thread_db == null) {
+				if (mono_manager == null)
+					return;
+				Report.Error ("Failed to initialize thread_db on {0}: {1} {2}",
+					      start.CommandLine, start, Environment.StackTrace);
+				throw new InternalError ();
+			}
+
+			bool found = false;
+			thread_db.GetThreadInfo (inferior, delegate (int lwp, long tid) {
+				if (lwp != engine.PID)
+					return;
+
+				engine.SetTID (tid);
+				found = true;
+			});
+
+			if (!found)
+				Report.Error ("Cannot find thread {0:x} in {1}",
+					      engine.PID, start.CommandLine);
+		}
+
+		internal SingleSteppingEngine GetEngineByTID (Inferior inferior, long tid)
+		{
+			foreach (SingleSteppingEngine engine in thread_hash.Values) {
+				if (engine.TID == tid)
+					return engine;
+			}
+
+			if (thread_db == null) {
+				Report.Error ("Failed to initialize thread_db on {0}: {1}",
+					      start.CommandLine, start);
+				return null;
+			}
+
+			SingleSteppingEngine result = null;
+			thread_db.GetThreadInfo (inferior, delegate (int t_lwp, long t_tid) {
+				if (tid != t_tid)
+					return;
+				result = (SingleSteppingEngine) thread_hash [t_lwp];
+
+			});
+
+			if (result == null)
+				Report.Error ("Cannot find thread {0:x} in {1}",
+					      tid, start.CommandLine);
+
+			return result;
+		}
+
+		public void Kill ()
+		{
+			if (!Inferior.HasThreadEvents) {
+				SingleSteppingEngine[] sses = new SingleSteppingEngine [thread_hash.Count];
+				thread_hash.Values.CopyTo (sses, 0);
+				foreach (SingleSteppingEngine sse in sses)
+					sse.SetKilledFlag ();
+				foreach (SingleSteppingEngine sse in sses)
+					sse.Kill ();
+			} else {
+				main_thread.Kill ();
+			}
+		}
+
+		public void Detach ()
+		{
+			if (!CanDetach)
+				throw new TargetException (TargetError.CannotDetach);
+
+			main_thread.Detach ();
+		}
+
+		internal void OnTargetDetached ()
+		{
+			OnProcessExitedEvent ();
+			Dispose ();
+		}
+
+		internal MonoLanguageBackend CreateMonoLanguage (MonoDebuggerInfo info)
+		{
+			mono_language = new MonoLanguageBackend (this, info);
+			return mono_language;
+		}
+
+		internal void UpdateSymbolTable (TargetMemoryAccess target)
+		{
+			if (mono_language != null)
+				mono_language.Update (target);
+		}
+
+		public void LoadLibrary (Thread thread, string filename)
+		{
+			if (mono_language == null)
+				throw new SymbolTableException (
+						"Cannot load .NET assembly `{0}' while " +
+						"debugging an unmanaged application.",
+						filename);
+
+			if (!mono_language.TryFindImage (thread, filename))
+				throw new SymbolTableException ("Could not find any .NET assembly `{0}'.", filename);
+		}
+
+		internal MonoLanguageBackend MonoLanguage {
+			get {
+				if (mono_language == null)
+					throw new InvalidOperationException ();
+
+				return mono_language;
+			}
+		}
+
+		internal bool IsManagedApplication {
+			get { return mono_language != null; }
+		}
+
+		public Module[] Modules {
+			get { return session.Modules; }
+		}
+
+		public SourceLocation FindLocation (string file, int line)
+		{
+			foreach (Module module in Modules) {
+				SourceLocation location = module.FindLocation (file, line);
+				
+				if (location != null)
+					return location;
+			}
+
+			return null;
+		}
+
+		public SourceLocation FindMethod (string name)
+		{
+			foreach (Module module in Modules) {
+				MethodSource method = module.FindMethod (name);
+				
+				if (method != null)
+					return new SourceLocation (method);
+			}
+
+			return null;
+		}
+
+		internal ThreadServant[] ThreadServants {
+			get {
+				lock (thread_hash.SyncRoot) {
+					int count = thread_hash.Count;
+					ThreadServant[] servants = new ThreadServant [count];
+					thread_hash.Values.CopyTo (servants, 0);
+					return servants;
+				}
+			}
+		}
+
+		internal SingleSteppingEngine[] Engines {
+			get {
+				lock (thread_hash.SyncRoot) {
+					int count = thread_hash.Count;
+					SingleSteppingEngine[] engines = new SingleSteppingEngine [count];
+					thread_hash.Values.CopyTo (engines, 0);
+					return engines;
+				}
+			}
+		}
+
+		public TargetAddress LookupSymbol (string name)
+		{
+			return os.LookupSymbol (name);
+		}
+
+		public Thread[] GetThreads ()
+		{
+			lock (thread_hash.SyncRoot) {
+				int count = thread_hash.Count;
+				Thread[] threads = new Thread [count];
+				ThreadServant[] servants = new ThreadServant [count];
+				thread_hash.Values.CopyTo (servants, 0);
+				for (int i = 0; i < count; i++)
+					threads [i] = servants [i].Client;
+				return threads;
+			}
+		}
+
+		internal bool HasThreadLock {
+			get { return has_thread_lock; }
+		}
+
+		// <summary>
+		//   Stop all currently running threads without sending any notifications.
+		//   The threads are automatically resumed to their previos state when
+		//   ReleaseGlobalThreadLock() is called.
+		// </summary>
+		internal void AcquireGlobalThreadLock (SingleSteppingEngine caller)
+		{
+			if (has_thread_lock)
+				throw new InternalError ("Recursive thread lock");
+
+			thread_lock_mutex.Lock ();
+			Report.Debug (DebugFlags.Threads,
+				      "Acquiring global thread lock: {0}", caller);
+			has_thread_lock = true;
+			foreach (ThreadServant thread in thread_hash.Values) {
+				if (thread == caller)
+					continue;
+				thread.AcquireThreadLock ();
+			}
+			Report.Debug (DebugFlags.Threads,
+				      "Done acquiring global thread lock: {0}",
+				      caller);
+		}
+
+		internal void ReleaseGlobalThreadLock (SingleSteppingEngine caller)
+		{
+			Report.Debug (DebugFlags.Threads,
+				      "Releasing global thread lock: {0}", caller);
+				
+			foreach (ThreadServant thread in thread_hash.Values) {
+				if (thread == caller)
+					continue;
+				thread.ReleaseThreadLock ();
+			}
+			has_thread_lock = false;
+			thread_lock_mutex.Unlock ();
+			Report.Debug (DebugFlags.Threads,
+				      "Released global thread lock: {0}", caller);
+		}
+
+		internal void DropGlobalThreadLock ()
+		{
+			if (thread_hash.Count != 0)
+				throw new InternalError ();
+
+			if (has_thread_lock) {
+				has_thread_lock = false;
+				thread_lock_mutex.Unlock ();
+			}
+		}
+
+#region User Threads
+
+		internal enum ProcessState
+		{
+			SingleThreaded,
+			Running,
+			Stopping,
+			Stopped,
+			Exited
+		}
+
+		protected ST.ManualResetEvent stopped_event;
+
+		ProcessState current_state = ProcessState.Stopped;
+		OperationCommandResult current_operation = null;
+
+		public void OperationCompleted (SingleSteppingEngine caller, TargetEventArgs result, ThreadingModel model)
+		{
+			if (!ThreadManager.InBackgroundThread && Inferior.HasThreadEvents)
+				throw new InternalError ();
+
+			if (current_state == ProcessState.Stopping)
+				return;
+			else if (current_state != ProcessState.Running)
+				throw new InternalError ();
+
+			if ((result != null) && (caller != main_thread) &&
+			    ((result.Type == TargetEventType.TargetExited) || (result.Type == TargetEventType.TargetSignaled)))
+				return;
+
+			current_state = ProcessState.Stopping;
+			SuspendUserThreads (model, caller);
+
+			lock (this) {
+				current_state = ProcessState.Stopped;
+				current_operation.Completed ();
+				current_operation = null;
+				stopped_event.Set ();
+			}
+		}
+
+		protected void SuspendUserThreads (ThreadingModel model, SingleSteppingEngine caller)
+		{
+			Report.Debug (DebugFlags.Threads,
+				      "Suspending user threads: {0} {1}", model, caller);
+
+			foreach (SingleSteppingEngine engine in thread_hash.Values) {
+				Report.Debug (DebugFlags.Threads, "  check user thread: {0} {1}",
+					      engine, engine.Thread.ThreadFlags);
+				if (engine == caller)
+					continue;
+				if (((engine.Thread.ThreadFlags & Thread.Flags.Immutable) != 0) &&
+				    ((model & ThreadingModel.StopImmutableThreads) == 0))
+					continue;
+				if (((engine.Thread.ThreadFlags & Thread.Flags.Daemon) != 0) &&
+				    ((model & ThreadingModel.StopDaemonThreads) == 0))
+					continue;
+				engine.SuspendUserThread ();
+			}
+
+			Report.Debug (DebugFlags.Threads,
+				      "Done suspending user threads: {0} {1}", model, caller);
+		}
+
+		protected void ResumeUserThreads (ThreadingModel model, SingleSteppingEngine caller)
+		{
+			Report.Debug (DebugFlags.Threads,
+				      "Resuming user threads: {0}", caller);
+
+			foreach (SingleSteppingEngine engine in thread_hash.Values) {
+				if (engine == caller)
+					continue;
+				if ((engine.Thread.ThreadFlags & Thread.Flags.AutoRun) == 0)
+					continue;
+				if (((engine.Thread.ThreadFlags & Thread.Flags.Immutable) != 0) &&
+				    ((model & ThreadingModel.StopImmutableThreads) == 0))
+					continue;
+				if (((engine.Thread.ThreadFlags & Thread.Flags.Daemon) != 0) &&
+				    ((model & ThreadingModel.StopDaemonThreads) == 0))
+					continue;
+
+				CommandResult result;
+				if (current_operation != null)
+					result = current_operation;
+				else
+					result = new ThreadCommandResult (engine.Thread);
+
+				engine.ResumeUserThread (result);
+			}
+
+			Report.Debug (DebugFlags.Threads,
+				      "Resumed user threads: {0}", caller);
+		}
+
+		internal CommandResult StartOperation (ThreadingModel model, SingleSteppingEngine caller)
+		{
+			if (!ThreadManager.InBackgroundThread)
+				throw new InternalError ();
+
+			if ((current_state != ProcessState.Stopped) && (current_state != ProcessState.SingleThreaded))
+				throw new TargetException (TargetError.NotStopped);
+
+			if ((model & ThreadingModel.ThreadingMode) == ThreadingModel.Single) {
+				current_state = ProcessState.SingleThreaded;
+				if ((model & ThreadingModel.ResumeThreads) != 0)
+					ResumeUserThreads (model, caller);
+				return new ThreadCommandResult (caller.Thread);
+			} else if ((model & ThreadingModel.ThreadingMode) != ThreadingModel.Process) {
+				throw new ArgumentException ();
+			}
+
+			lock (this) {
+				current_state = ProcessState.Running;
+				stopped_event.Reset ();
+				current_operation = new ProcessCommandResult (this, model);
+			}
+
+			ResumeUserThreads (model, caller);
+			return current_operation;
+		}
+
+		internal void StartGlobalOperation (ThreadingModel model, SingleSteppingEngine caller, OperationCommandResult operation)
+		{
+			if (!ThreadManager.InBackgroundThread)
+				throw new InternalError ();
+
+			if ((current_state != ProcessState.Stopped) && (current_state != ProcessState.SingleThreaded))
+				throw new TargetException (TargetError.NotStopped);
+
+			lock (this) {
+				current_state = ProcessState.Running;
+				stopped_event.Reset ();
+				current_operation = operation;
+			}
+
+			ResumeUserThreads (model, caller);
+		}
+
+		protected CommandResult CloneParentOperation (SingleSteppingEngine new_thread)
+		{
+			if (parent.current_state == ProcessState.SingleThreaded) {
+				current_state = ProcessState.SingleThreaded;
+				return new ThreadCommandResult (new_thread.Thread);
+			}
+
+			if (parent.current_state != ProcessState.Running)
+				throw new InternalError ();
+
+			current_state = ProcessState.Running;
+			if ((parent.current_operation.ThreadingModel & ThreadingModel.ThreadingMode) == ThreadingModel.Global)
+				current_operation = parent.current_operation;
+			else if ((parent.current_operation.ThreadingModel & ThreadingModel.ThreadingMode) == ThreadingModel.Process)
+				current_operation = new ProcessCommandResult (this, parent.current_operation.ThreadingModel);
+			else
+				throw new InternalError ();
+
+			return current_operation;
+		}
+
+		internal void Stop ()
+		{
+			main_thread.Invoke (delegate {
+				current_state = ProcessState.Stopping;
+
+				SuspendUserThreads (ThreadingModel.Process, null);
+				current_state = ProcessState.Stopped;
+				if (current_operation != null) {
+					current_operation.Completed ();
+					current_operation = null;
+				}
+				stopped_event.Set ();
+				return null;
+			}, null);
+		}
+
+		ST.WaitHandle IOperationHost.WaitHandle {
+			get { return stopped_event; }
+		}
+
+		void IOperationHost.SendResult (SingleSteppingEngine sse, TargetEventArgs args)
+		{
+			Debugger.SendTargetEvent (sse, args);
+		}
+
+		void IOperationHost.Abort ()
+		{
+			Stop ();
+		}
+
+		protected class ProcessCommandResult : OperationCommandResult
+		{
+			public ProcessServant Process {
+				get; private set;
+			}
+
+			internal override IOperationHost Host {
+				get { return Process; }
+			}
+
+			internal ProcessCommandResult (ProcessServant process, ThreadingModel model)
+				: base (model)
+			{
+				this.Process = process;
+			}
+
+			internal override void OnExecd (SingleSteppingEngine new_thread)
+			{
+				Process = new_thread.Process;
+			}
+		}
+
+#endregion
+
+		public bool ActivatePendingBreakpoints (CommandResult result)
+		{
+			return ((SingleSteppingEngine) main_thread).ManagedCallback (
+				delegate (SingleSteppingEngine sse) {
+					return sse.ActivatePendingBreakpoints (null);
+				}, result);
+		}
+
+		public override string ToString ()
+		{
+			return String.Format ("{0} ({1})", GetType (), ID);
+		}
+
+		//
+		// IDisposable
+		//
+
+		private bool disposed = false;
+
+		private void check_disposed ()
+		{
+			if (disposed)
+				throw new ObjectDisposedException ("Process");
+		}
+
+		protected virtual void DoDispose ()
+		{
+			if (!is_forked) {
+				if (architecture != null) {
+					architecture.Dispose ();
+					architecture = null;
+				}
+
+				if (mono_language != null) {
+					mono_language.Dispose();
+					mono_language = null;
+				}
+
+				if (native_language != null) {
+					native_language.Dispose ();
+					native_language = null;
+				}
+
+				if (os != null) {
+					os.Dispose ();
+					os = null;
+				}
+
+				if (symtab_manager != null) {
+					symtab_manager.Dispose ();
+					symtab_manager = null;
+				}
+			}
+
+			if (breakpoint_manager != null) {
+				breakpoint_manager.Dispose ();
+				breakpoint_manager = null;
+			}
+
+			if (thread_db != null) {
+				thread_db.Dispose ();
+				thread_db = null;
+			}
+
+			if (thread_lock_mutex != null) {
+				thread_lock_mutex.Dispose ();
+				thread_lock_mutex = null;
+			}
+
+			exception_handlers = null;
+
+			manager.RemoveProcess (this);
+		}
+
+		private void Dispose (bool disposing)
+		{
+			// Check to see if Dispose has already been called.
+			lock (this) {
+				if (disposed)
+					return;
+
+				disposed = true;
+			}
+
+			// If this is a call to Dispose, dispose all managed resources.
+			if (disposing)
+				DoDispose ();
+		}
+
+		public void Dispose ()
+		{
+			Dispose (true);
+			// Take yourself off the Finalization queue
+			GC.SuppressFinalize (this);
+		}
+
+		~ProcessServant ()
+		{
+			Dispose (false);
+		}
+	}
+}
diff --git a/backend/SingleSteppingEngine.cs b/backend/SingleSteppingEngine.cs
index aae1f88..9204f12 100644
--- a/backend/SingleSteppingEngine.cs
+++ b/backend/SingleSteppingEngine.cs
@@ -80,14 +80,14 @@ namespace Mono.Debugger.Backend
 		internal delegate bool TrampolineHandler (Method method);
 		internal delegate bool CheckBreakpointHandler ();
 
-		protected SingleSteppingEngine (ThreadManager manager, Process process)
+		protected SingleSteppingEngine (ThreadManager manager, ProcessServant process)
 			: base (manager, process)
 		{
 			Report.Debug (DebugFlags.Threads, "New SSE ({0}): {1}",
 				      DebuggerWaitHandle.CurrentThread, this);
 		}
 
-		public SingleSteppingEngine (ThreadManager manager, Process process,
+		public SingleSteppingEngine (ThreadManager manager, ProcessServant process,
 					     ProcessStart start)
 			: this (manager, process)
 		{
@@ -103,7 +103,7 @@ namespace Mono.Debugger.Backend
 			manager.AddEngine (this);
 		}
 
-		public SingleSteppingEngine (ThreadManager manager, Process process,
+		public SingleSteppingEngine (ThreadManager manager, ProcessServant process,
 					     Inferior inferior, int pid)
 			: this (manager, process)
 		{
@@ -146,11 +146,6 @@ namespace Mono.Debugger.Backend
 			return result;
 		}
 
-		public void StartSuspended ()
-		{
-			frame_changed (inferior.CurrentFrame, null);
-		}
-
 #region child event processing
 		// <summary>
 		//   This is called from the SingleSteppingEngine's main event loop to give
@@ -224,7 +219,7 @@ namespace Mono.Debugger.Backend
 				}
 			}
 
-			if (Process.IsAttached && !attach_initialized) {
+			if (ProcessServant.IsAttached && !attach_initialized) {
 				attach_initialized = true;
 
 				if (cevent.Type == Inferior.ChildEventType.CHILD_INTERRUPTED)
@@ -290,7 +285,7 @@ namespace Mono.Debugger.Backend
 					InterruptibleOperation io = nested_break_stack.Pop ();
 					if (io != rti)
 						throw new InternalError ("{0} unexpected item on nested break state stack: {1}", this, io);
-					process.Debugger.OnLeaveNestedBreakState (thread);
+					process.Debugger.OnLeaveNestedBreakState (this);
 				}
 
 				if (current_operation != rti) {
@@ -612,7 +607,7 @@ namespace Mono.Debugger.Backend
 				InterruptibleOperation io = nested_break_stack.Pop ();
 				if (io != rti)
 					throw new InternalError ("{0} aborting rti failed: {1}", this, io);
-				process.Debugger.OnLeaveNestedBreakState (thread);
+				process.Debugger.OnLeaveNestedBreakState (this);
 			}
 
 			return rti;
@@ -643,7 +638,7 @@ namespace Mono.Debugger.Backend
 				operation_completed_event.Set ();
 
 				if (suspended) {
-					process.Debugger.OnEnterNestedBreakState (thread);
+					process.Debugger.OnEnterNestedBreakState (this);
 					((InterruptibleOperation) current_operation).IsSuspended = true;
 					nested_break_stack.Push ((InterruptibleOperation) current_operation);
 					current_operation.CompletedOperation (true);
@@ -714,7 +709,7 @@ namespace Mono.Debugger.Backend
 			if (current_operation != null)
 				OperationCompleted (result);
 			else
-				process.Debugger.OnTargetEvent (thread, result);
+				process.Debugger.SendTargetEvent (this, result);
 
 			process.OnThreadExitedEvent (this);
 			Dispose ();
@@ -903,6 +898,10 @@ namespace Mono.Debugger.Backend
 			get { return operation_completed_event; }
 		}
 
+		internal override ProcessServant ProcessServant {
+			get { return process; }
+		}
+
 		internal override ThreadManager ThreadManager {
 			get { return manager; }
 		}
@@ -1024,7 +1023,7 @@ namespace Mono.Debugger.Backend
 			if (current_operation != null)
 				OperationCompleted (result);
 			else
-				process.Debugger.OnTargetEvent (thread, result);
+				process.Debugger.SendTargetEvent (this, result);
 
 			process.OnThreadExitedEvent (this);
 			Dispose ();
@@ -1177,7 +1176,7 @@ namespace Mono.Debugger.Backend
 			Report.Debug (DebugFlags.SSE, "{0} throwing exception: {1}", this, exc_obj.Type.Name);
 
 			ExceptionAction action;
-			if (process.GenericExceptionCatchPoint (exc_obj.Type.Name, out action)) {
+			if (process.Client.GenericExceptionCatchPoint (exc_obj.Type.Name, out action)) {
 				Report.Debug (DebugFlags.SSE,
 					      "{0} generic exception catchpoint: {1}", this, action);
 				return action;
@@ -2006,7 +2005,7 @@ namespace Mono.Debugger.Backend
 					frame_changed (inferior.CurrentFrame, null);
 					TargetEventArgs args = new TargetEventArgs (
 						TargetEventType.TargetStopped, 0, current_frame);
-					process.Debugger.OnTargetEvent (thread, args);
+					process.Debugger.SendTargetEvent (this, args);
 					return null;
 				}
 
@@ -2959,10 +2958,10 @@ namespace Mono.Debugger.Backend
 		protected override void DoExecute ()
 		{
 			Report.Debug (DebugFlags.SSE,
-				      "{0} execute start: {1} {2} {3}", sse, sse.Process.IsAttached,
+				      "{0} execute start: {1} {2} {3}", sse, sse.ProcessServant.IsAttached,
 				      inferior.CurrentFrame, inferior.EntryPoint);
 
-			if (!sse.Process.IsAttached && Inferior.HasThreadEvents)
+			if (!sse.ProcessServant.IsAttached && Inferior.HasThreadEvents)
 				sse.do_continue (inferior.EntryPoint);
 			else
 				sse.ProcessEvent (new Inferior.ChildEvent (Inferior.ChildEventType.CHILD_STOPPED, 0, 0, 0));
@@ -2973,7 +2972,7 @@ namespace Mono.Debugger.Backend
 		{
 			Report.Debug (DebugFlags.SSE,
 				      "{0} start: {1} {2} {3} {4}", sse,
-				      cevent, sse.Process.IsAttached,
+				      cevent, sse.ProcessServant.IsAttached,
 				      inferior.CurrentFrame, inferior.EntryPoint);
 
 			args = null;
@@ -2989,13 +2988,13 @@ namespace Mono.Debugger.Backend
 				return EventResult.Running;
 			}
 
-			sse.Process.OperatingSystem.UpdateSharedLibraries (inferior);
-			sse.Process.InitializeThreads (inferior, !sse.Process.IsAttached);
+			sse.ProcessServant.OperatingSystem.UpdateSharedLibraries (inferior);
+			sse.ProcessServant.InitializeThreads (inferior, !sse.ProcessServant.IsAttached);
 
-			if (sse.Process.IsAttached)
+			if (sse.ProcessServant.IsAttached)
 				return EventResult.Completed;
 
-			if (!sse.Process.IsManaged) {
+			if (!sse.ProcessServant.IsManaged) {
 				if (sse.InitializeBreakpoints ())
 					return EventResult.Running;
 			}
@@ -3099,7 +3098,7 @@ namespace Mono.Debugger.Backend
 
 		protected override void DoExecute ()
 		{
-			MonoDebuggerInfo info = sse.Process.MonoManager.MonoDebuggerInfo;
+			MonoDebuggerInfo info = sse.ProcessServant.MonoManager.MonoDebuggerInfo;
 
 			MonoFunctionType func = (MonoFunctionType) Handle.Function;
 			TargetAddress image = func.SymbolFile.MonoImage;
@@ -3142,7 +3141,7 @@ namespace Mono.Debugger.Backend
 
 		protected override void DoExecute ()
 		{
-			MonoDebuggerInfo info = sse.Process.MonoManager.MonoDebuggerInfo;
+			MonoDebuggerInfo info = sse.ProcessServant.MonoManager.MonoDebuggerInfo;
 
 			Report.Debug (DebugFlags.SSE,
 				      "{0} remove breakpoint: {1} {2}", sse, Handle, Handle.Index);
@@ -3181,7 +3180,7 @@ namespace Mono.Debugger.Backend
 				      "{0} init after fork ({1})", sse,
 				      DebuggerWaitHandle.CurrentThread);
 
-			sse.Process.BreakpointManager.InitializeAfterFork (inferior);
+			sse.ProcessServant.BreakpointManager.InitializeAfterFork (inferior);
 
 			args = null;
 			return EventResult.AskParent;
@@ -3200,7 +3199,7 @@ namespace Mono.Debugger.Backend
 
 		protected override void DoExecute ()
 		{
-			MonoDebuggerInfo info = sse.Process.MonoManager.MonoDebuggerInfo;
+			MonoDebuggerInfo info = sse.ProcessServant.MonoManager.MonoDebuggerInfo;
 			inferior.CallMethod (info.InitCodeBuffer, 0, 0, ID);
 		}
 
@@ -3345,7 +3344,7 @@ namespace Mono.Debugger.Backend
 				      "{0} executing instruction: {1}", sse,
 				      TargetBinaryReader.HexDump (Instruction));
 
-			if (!sse.Process.MonoManager.HasCodeBuffer) {
+			if (!sse.ProcessServant.MonoManager.HasCodeBuffer) {
 				sse.PushOperation (new OperationInitCodeBuffer (sse));
 				pushed_code_buffer = true;
 				return;
@@ -4784,7 +4783,7 @@ namespace Mono.Debugger.Backend
 		protected override void DoExecute ()
 		{
 			try {
-				exc_object = sse.Process.MonoLanguage.CreateObject (inferior, exc);
+				exc_object = sse.ProcessServant.MonoLanguage.CreateObject (inferior, exc);
 			} catch {
 				exc_object = null;
 			}
diff --git a/backend/ThreadDB.cs b/backend/ThreadDB.cs
index 7612c9a..ca4f72e 100644
--- a/backend/ThreadDB.cs
+++ b/backend/ThreadDB.cs
@@ -6,7 +6,7 @@ namespace Mono.Debugger.Backend
 	internal class ThreadDB : DebuggerMarshalByRefObject
 	{
 		IntPtr handle;
-		Process process;
+		ProcessServant process;
 		TargetMemoryAccess target;
 		DebuggerMutex mutex;
 
@@ -43,7 +43,7 @@ namespace Mono.Debugger.Backend
 		ReadMemoryFunc read_memory_func;
 		WriteMemoryFunc write_memory_func;
 
-		protected ThreadDB (Process process)
+		protected ThreadDB (ProcessServant process)
 		{
 			this.process = process;
 
@@ -71,7 +71,7 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		public static ThreadDB Create (Process process, Inferior target)
+		public static ThreadDB Create (ProcessServant process, Inferior target)
 		{
 			ThreadDB db = new ThreadDB (process);
 			if (!db.Initialize (target))
diff --git a/backend/ThreadManager.cs b/backend/ThreadManager.cs
index 595d8a1..4280fd2 100644
--- a/backend/ThreadManager.cs
+++ b/backend/ThreadManager.cs
@@ -21,9 +21,9 @@ namespace Mono.Debugger.Backend
 	{
 		public static TimeSpan WaitTimeout = TimeSpan.FromMilliseconds (5000);
 
-		internal ThreadManager (Debugger debugger)
+		internal ThreadManager (DebuggerServant backend)
 		{
-			this.debugger = debugger;
+			this.backend = backend;
 
 			thread_hash = Hashtable.Synchronized (new Hashtable ());
 			engine_hash = Hashtable.Synchronized (new Hashtable ());
@@ -36,6 +36,9 @@ namespace Mono.Debugger.Backend
 			
 			address_domain = AddressDomain.Global;
 
+			command_mutex = new DebuggerMutex ("command_mutex");
+			command_mutex.DebugFlags = DebugFlags.Wait;
+
 			wait_event = new ST.AutoResetEvent (false);
 			engine_event = new ST.ManualResetEvent (true);
 			ready_event = new ST.ManualResetEvent (false);
@@ -56,7 +59,7 @@ namespace Mono.Debugger.Backend
 			ready_event.WaitOne ();
 		}
 
-		Debugger debugger;
+		DebuggerServant backend;
 		DebuggerEventQueue event_queue;
 		ST.Thread inferior_thread;
 		ST.Thread wait_thread;
@@ -73,6 +76,7 @@ namespace Mono.Debugger.Backend
 		DateTime last_pending_sigstop;
 		Dictionary<int,DateTime> pending_sigstops;
 
+		DebuggerMutex command_mutex;
 		bool abort_requested;
 		bool waiting;
 
@@ -83,6 +87,9 @@ namespace Mono.Debugger.Backend
 		static extern int mono_debugger_server_global_wait (out int status);
 
 		[DllImport("monodebuggerserver")]
+		static extern int mono_debugger_server_get_pending_sigint ();
+
+		[DllImport("monodebuggerserver")]
 		static extern Inferior.ChildEventType mono_debugger_server_dispatch_simple (int status, out int arg);
 
 		void start_inferior ()
@@ -93,8 +100,6 @@ namespace Mono.Debugger.Backend
 			while (!abort_requested) {
 				engine_thread_main ();
 			}
-
-			Report.Debug (DebugFlags.Threads, "Engine thread exiting.");
 		}
 
 		// <remarks>
@@ -105,14 +110,12 @@ namespace Mono.Debugger.Backend
 		SingleSteppingEngine current_event = null;
 		int current_event_status = 0;
 
-#if DISABLED
-		public Process OpenCoreFile (ProcessStart start, out Thread[] threads)
+		public ProcessServant OpenCoreFile (ProcessStart start, out Thread[] threads)
 		{
 			CoreFile core = CoreFile.OpenCoreFile (this, start);
 			threads = core.GetThreads ();
 			return core;
 		}
-#endif
 
 		internal void AddEngine (SingleSteppingEngine engine)
 		{
@@ -120,7 +123,7 @@ namespace Mono.Debugger.Backend
 			engine_hash.Add (engine.ID, engine);
 		}
 
-		internal void RemoveProcess (Process process)
+		internal void RemoveProcess (ProcessServant process)
 		{
 			processes.Remove (process);
 		}
@@ -218,8 +221,8 @@ namespace Mono.Debugger.Backend
 			return true;
 		}
 
-		public Debugger Debugger {
-			get { return debugger; }
+		public DebuggerServant Debugger {
+			get { return backend; }
 		}
 
 		public AddressDomain AddressDomain {
@@ -254,7 +257,7 @@ namespace Mono.Debugger.Backend
 				return command.Result;
 		}
 
-		public Process StartApplication (ProcessStart start, out CommandResult result)
+		public ProcessServant StartApplication (ProcessStart start, out CommandResult result)
 		{
 			Command command = new Command (CommandType.CreateProcess, start);
 
@@ -274,7 +277,7 @@ namespace Mono.Debugger.Backend
 			if (command.Result is Exception)
 				throw (Exception) command.Result;
 			else {
-				var pair = (KeyValuePair<CommandResult,Process>) command.Result;
+				var pair = (KeyValuePair<CommandResult,ProcessServant>) command.Result;
 				result = pair.Key;
 				return pair.Value;
 			}
@@ -370,14 +373,14 @@ namespace Mono.Debugger.Backend
 			} else if (command.Type == CommandType.CreateProcess) {
 				try {
 					ProcessStart start = (ProcessStart) command.Data1;
-					Process process = new Process (this, start);
+					ProcessServant process = new ProcessServant (this, start);
 					processes.Add (process);
 
 					CommandResult result = process.StartApplication ();
 
 					RequestWait ();
 
-					command.Result = new KeyValuePair<CommandResult,Process> (result, process);
+					command.Result = new KeyValuePair<CommandResult,ProcessServant> (result, process);
 				} catch (ST.ThreadAbortException) {
 					return;
 				} catch (Exception ex) {
@@ -471,17 +474,12 @@ namespace Mono.Debugger.Backend
 				//
 
 				do {
-					Report.Debug (DebugFlags.Wait,
-						      "Wait thread reaping children");
 					pid = mono_debugger_server_global_wait (out status);
 					Report.Debug (DebugFlags.Wait,
 						      "Wait thread received event: {0} {1:x}",
 						      pid, status);
 				} while (pid > 0);
 
-				Report.Debug (DebugFlags.Wait,
-					      "Wait thread done");
-
 				return false;
 			}
 
@@ -543,7 +541,7 @@ namespace Mono.Debugger.Backend
 
 				ArrayList check_threads = new ArrayList();
 				bool got_threads = true;
-				foreach(Process process in processes)
+				foreach(ProcessServant process in processes)
 					got_threads = got_threads && process.CheckForThreads(check_threads);
 
 				if(got_threads) {
@@ -554,7 +552,7 @@ namespace Mono.Debugger.Backend
 							SingleSteppingEngine old_engine = (SingleSteppingEngine) thread_hash [lwp];					
 							thread_hash.Remove (old_engine.PID);
 							engine_hash.Remove (old_engine.ID);
-							old_engine.Process.OnThreadExitedEvent (old_engine);
+							old_engine.ProcessServant.OnThreadExitedEvent (old_engine);
 							old_engine.Dispose ();
 						}
 					}
@@ -663,10 +661,7 @@ namespace Mono.Debugger.Backend
 #if FIXME
 				RequestWait ();
 #endif
-				if (event_queue.TryLock ()) {
-					event_queue.Signal();
-					event_queue.Unlock ();
-				}
+				event_queue.Signal();
 				disposed = true;
 			}
 
@@ -715,7 +710,7 @@ namespace Mono.Debugger.Backend
 				wait_thread.Abort ();
 				wait_thread.Join ();
 
-				Process[] procs = new Process [processes.Count];
+				ProcessServant[] procs = new ProcessServant [processes.Count];
 				processes.CopyTo (procs, 0);
 
 				for (int i = 0; i < procs.Length; i++)
diff --git a/backend/ThreadServant.cs b/backend/ThreadServant.cs
index ce9421a..d4da572 100644
--- a/backend/ThreadServant.cs
+++ b/backend/ThreadServant.cs
@@ -17,7 +17,7 @@ namespace Mono.Debugger.Backend
 {
 	internal abstract class ThreadServant : DebuggerMarshalByRefObject
 	{
-		protected ThreadServant (ThreadManager manager, Process process)
+		protected ThreadServant (ThreadManager manager, ProcessServant process)
 		{
 			this.manager = manager;
 			this.process = process;
@@ -27,12 +27,12 @@ namespace Mono.Debugger.Backend
 			tgroup = process.Session.CreateThreadGroup ("@" + ID);
 			tgroup.AddThread (ID);
 
-			thread = process.Debugger.CreateThread (this, ID);
+			thread = process.Debugger.Client.CreateThread (this, ID);
 		}
 
 		protected readonly int id;
 		protected readonly Thread thread;
-		protected readonly Process process;
+		protected readonly ProcessServant process;
 		protected readonly ThreadManager manager;
 		protected readonly ThreadGroup tgroup;
 
@@ -78,7 +78,11 @@ namespace Mono.Debugger.Backend
 			get;
 		}
 
-		internal Process Process {
+		internal abstract ProcessServant ProcessServant {
+			get;
+		}
+
+		internal ProcessServant Process {
 			get { return process; }
 		}
 
diff --git a/backend/arch/Architecture.cs b/backend/arch/Architecture.cs
index 02fdd2d..c25622e 100644
--- a/backend/arch/Architecture.cs
+++ b/backend/arch/Architecture.cs
@@ -9,13 +9,13 @@ namespace Mono.Debugger.Backend
 	// </summary>
 	internal abstract class Architecture : DebuggerMarshalByRefObject, IDisposable
 	{
-		protected readonly Process process;
+		protected readonly ProcessServant process;
 		protected readonly TargetInfo TargetInfo;
 
 		Disassembler disassembler;
 		X86_Opcodes opcodes;
 
-		protected Architecture (Process process, TargetInfo info)
+		protected Architecture (ProcessServant process, TargetInfo info)
 		{
 			this.process = process;
 			this.TargetInfo = info;
diff --git a/backend/arch/Architecture_I386.cs b/backend/arch/Architecture_I386.cs
index 683f0cd..a5a2292 100644
--- a/backend/arch/Architecture_I386.cs
+++ b/backend/arch/Architecture_I386.cs
@@ -9,7 +9,7 @@ namespace Mono.Debugger.Architectures
 	// </summary>
 	internal class Architecture_I386 : X86_Architecture
 	{
-		internal Architecture_I386 (Process process, TargetInfo info)
+		internal Architecture_I386 (ProcessServant process, TargetInfo info)
 			: base (process, info)
 		{ }
 
diff --git a/backend/arch/Architecture_X86_64.cs b/backend/arch/Architecture_X86_64.cs
index 1153a2a..0a28d10 100644
--- a/backend/arch/Architecture_X86_64.cs
+++ b/backend/arch/Architecture_X86_64.cs
@@ -12,7 +12,7 @@ namespace Mono.Debugger.Architectures
 		protected const int MONO_FAKE_IMT_METHOD = -1;
 		protected const int MONO_FAKE_VTABLE_METHOD = -2;
 
-		internal Architecture_X86_64 (Process process, TargetInfo info)
+		internal Architecture_X86_64 (ProcessServant process, TargetInfo info)
 			: base (process, info)
 		{ }
 
diff --git a/backend/arch/CoreFile.cs b/backend/arch/CoreFile.cs
index 7e41d3f..a052300 100644
--- a/backend/arch/CoreFile.cs
+++ b/backend/arch/CoreFile.cs
@@ -1,4 +1,3 @@
-#if DISABLED
 using System;
 using System.IO;
 using System.Collections;
@@ -11,7 +10,7 @@ using Mono.Debugger.Backend.Mono;
 
 namespace Mono.Debugger.Backend
 {
-	internal class CoreFile : Process
+	internal class CoreFile : ProcessServant
 	{
 		TargetMemoryInfo info;
 		Bfd bfd, core_bfd;
@@ -267,7 +266,7 @@ namespace Mono.Debugger.Backend
 				get { return CoreFile.ThreadManager; }
 			}
 
-			internal override Process Process {
+			internal override ProcessServant ProcessServant {
 				get { return CoreFile; }
 			}
 
@@ -724,4 +723,3 @@ namespace Mono.Debugger.Backend
 		}
 	}
 }
-#endif
diff --git a/backend/arch/Makefile.in b/backend/arch/Makefile.in
index 81a680c..8fe7019 100644
--- a/backend/arch/Makefile.in
+++ b/backend/arch/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/backend/arch/Opcodes_I386.cs b/backend/arch/Opcodes_I386.cs
index 7ccfedf..fda5623 100644
--- a/backend/arch/Opcodes_I386.cs
+++ b/backend/arch/Opcodes_I386.cs
@@ -5,7 +5,7 @@ namespace Mono.Debugger.Architectures
 {
 	internal class Opcodes_I386 : X86_Opcodes
 	{
-		internal Opcodes_I386 (Process process)
+		internal Opcodes_I386 (ProcessServant process)
 			: base (process)
 		{ }
 
diff --git a/backend/arch/Opcodes_X86_64.cs b/backend/arch/Opcodes_X86_64.cs
index 7c90715..c867cf8 100644
--- a/backend/arch/Opcodes_X86_64.cs
+++ b/backend/arch/Opcodes_X86_64.cs
@@ -5,7 +5,7 @@ namespace Mono.Debugger.Architectures
 {
 	internal class Opcodes_X86_64 : X86_Opcodes
 	{
-		internal Opcodes_X86_64 (Process process)
+		internal Opcodes_X86_64 (ProcessServant process)
 			: base (process)
 		{ }
 
diff --git a/backend/arch/X86_Architecture.cs b/backend/arch/X86_Architecture.cs
index 5b61e6b..0469dc4 100644
--- a/backend/arch/X86_Architecture.cs
+++ b/backend/arch/X86_Architecture.cs
@@ -45,7 +45,7 @@ namespace Mono.Debugger.Architectures
 
 	internal abstract class X86_Architecture : Architecture
 	{
-		protected X86_Architecture (Process process, TargetInfo info)
+		protected X86_Architecture (ProcessServant process, TargetInfo info)
 			: base (process, info)
 		{ }
 
diff --git a/backend/arch/X86_Instruction.cs b/backend/arch/X86_Instruction.cs
index 791a411..60ceb50 100644
--- a/backend/arch/X86_Instruction.cs
+++ b/backend/arch/X86_Instruction.cs
@@ -533,7 +533,7 @@ namespace Mono.Debugger.Architectures
 				}
 
 				bool is_start;
-				if (Opcodes.Process.OperatingSystem.GetTrampoline (
+				if (Opcodes.Process.NativeLanguage.OperatingSystem.GetTrampoline (
 					    memory, target, out trampoline, out is_start)) {
 					target = trampoline;
 					return is_start ? 
diff --git a/backend/arch/X86_Opcodes.cs b/backend/arch/X86_Opcodes.cs
index faa5b79..0c64164 100644
--- a/backend/arch/X86_Opcodes.cs
+++ b/backend/arch/X86_Opcodes.cs
@@ -7,11 +7,11 @@ namespace Mono.Debugger.Architectures
 {
 	internal abstract class X86_Opcodes : Opcodes
 	{
-		Process process;
+		ProcessServant process;
 		TargetMemoryInfo target_info;
 		Disassembler disassembler;
 
-		protected X86_Opcodes (Process process)
+		protected X86_Opcodes (ProcessServant process)
 		{
 			this.process = process;
 
@@ -32,7 +32,7 @@ namespace Mono.Debugger.Architectures
 			get { return disassembler; }
 		}
 
-		internal Process Process {
+		internal ProcessServant Process {
 			get { return process; }
 		}
 
diff --git a/backend/mono/Makefile.in b/backend/mono/Makefile.in
index fa7ca51..b5861b1 100644
--- a/backend/mono/Makefile.in
+++ b/backend/mono/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/backend/mono/MonoLanguageBackend.cs b/backend/mono/MonoLanguageBackend.cs
index fc9b06d..ab12566 100644
--- a/backend/mono/MonoLanguageBackend.cs
+++ b/backend/mono/MonoLanguageBackend.cs
@@ -90,21 +90,21 @@ namespace Mono.Debugger.Backend.Mono
 
 			DecimalType = MonoFundamentalType.Create (
 				corlib, memory, FundamentalKind.Decimal);
-			Cecil.TypeDefinition decimal_type = corlib.ModuleDefinition.GetType ("System.Decimal");
+			Cecil.TypeDefinition decimal_type = corlib.ModuleDefinition.Types ["System.Decimal"];
 			corlib.AddType (decimal_type, DecimalType);
 
 			TargetAddress klass = corlib.MonoLanguage.MetadataHelper.GetArrayClass (memory);
-			Cecil.TypeDefinition array_type = corlib.ModuleDefinition.GetType ("System.Array");
+			Cecil.TypeDefinition array_type = corlib.ModuleDefinition.Types ["System.Array"];
 			ArrayType = mono.CreateCoreType (corlib, array_type, memory, klass);
 			mono.AddCoreType (array_type, ArrayType, ArrayType, klass);
 
 			klass = corlib.MonoLanguage.MetadataHelper.GetDelegateClass (memory);
-			Cecil.TypeDefinition delegate_type = corlib.ModuleDefinition.GetType ("System.Delegate");
+			Cecil.TypeDefinition delegate_type = corlib.ModuleDefinition.Types ["System.Delegate"];
 			DelegateType = new MonoClassType (corlib, delegate_type);
 			mono.AddCoreType (delegate_type, DelegateType, DelegateType, klass);
 
 			klass = corlib.MonoLanguage.MetadataHelper.GetExceptionClass (memory);
-			Cecil.TypeDefinition exception_type = corlib.ModuleDefinition.GetType ("System.Exception");
+			Cecil.TypeDefinition exception_type = corlib.ModuleDefinition.Types ["System.Exception"];
 			ExceptionType = mono.CreateCoreType (corlib, exception_type, memory, klass);
 			mono.AddCoreType (exception_type, ExceptionType, ExceptionType, klass);
 		}
@@ -225,12 +225,12 @@ namespace Mono.Debugger.Backend.Mono
 
 		MetadataHelper runtime;
 
-		Process process;
+		ProcessServant process;
 		MonoDebuggerInfo info;
 		TargetAddress[] trampolines;
 		bool initialized;
 
-		public MonoLanguageBackend (Process process, MonoDebuggerInfo info)
+		public MonoLanguageBackend (ProcessServant process, MonoDebuggerInfo info)
 		{
 			this.process = process;
 			this.info = info;
@@ -257,7 +257,7 @@ namespace Mono.Debugger.Backend.Mono
 			get { return builtin_types; }
 		}
 
-		internal override Process Process {
+		internal override ProcessServant Process {
 			get { return process; }
 		}
 
@@ -289,7 +289,7 @@ namespace Mono.Debugger.Backend.Mono
 
 		internal bool TryFindImage (Thread thread, string filename)
 		{
-			Cecil.AssemblyDefinition ass = Cecil.AssemblyDefinition.ReadAssembly (filename);
+			Cecil.AssemblyDefinition ass = Cecil.AssemblyFactory.GetAssembly (filename);
 			if (ass == null)
 				return false;
 
@@ -325,7 +325,7 @@ namespace Mono.Debugger.Backend.Mono
 				return new MonoArrayType (element_type, array.Rank);
 			}
 
-			Cecil.ByReferenceType reftype = type as Cecil.ByReferenceType;
+			Cecil.ReferenceType reftype = type as Cecil.ReferenceType;
 			if (reftype != null) {
 				TargetType element_type = LookupMonoType (reftype.ElementType);
 				if (element_type == null)
@@ -407,7 +407,7 @@ namespace Mono.Debugger.Backend.Mono
 
 		Cecil.TypeDefinition resolve_cecil_type_ref (Cecil.TypeReference type)
 		{
-			type = type.GetElementType ();
+			type = type.GetOriginalType ();
 
 			if (type is Cecil.TypeDefinition)
 				return (Cecil.TypeDefinition) type;
@@ -418,12 +418,12 @@ namespace Mono.Debugger.Backend.Mono
 				if (assembly == null)
 					return null;
 
-				return assembly.MainModule.GetType (type.FullName);
+				return assembly.MainModule.Types [type.FullName];
 			}
 
 			Cecil.ModuleDefinition module = type.Scope as Cecil.ModuleDefinition;
 			if (module != null)
-				return module.GetType (type.FullName);
+				return module.Types [type.FullName];
 
 			throw new NotImplementedException ();
 		}
@@ -1075,7 +1075,7 @@ namespace Mono.Debugger.Backend.Mono
 
 			foreach (MonoSymbolFile symfile in symfile_by_index.Values) {
 				try {
-					var types = symfile.Assembly.MainModule.Types;
+					Cecil.TypeDefinitionCollection types = symfile.Assembly.MainModule.Types;
 					// FIXME: Work around an API problem in Cecil.
 					foreach (Cecil.TypeDefinition type in types) {
 						if (type.FullName != name)
@@ -1402,7 +1402,7 @@ namespace Mono.Debugger.Backend.Mono
 					      "Module load: {0} {1}", data, symfile);
 				if (symfile == null)
 					break;
-				engine.Process.Debugger.OnModuleLoadedEvent (symfile.Module);
+				engine.Process.Debugger.OnModuleLoaded (symfile.Module);
 				if ((builtin_types != null) && (symfile != null)) {
 					if (engine.OnModuleLoaded (symfile.Module))
 						return false;
@@ -1418,7 +1418,7 @@ namespace Mono.Debugger.Backend.Mono
 				if (symfile == null)
 					break;
 
-				engine.Process.Debugger.OnModuleUnLoadedEvent (symfile.Module);
+				engine.Process.Debugger.OnModuleUnLoaded (symfile.Module);
 				close_symfile (symfile);
 				break;
 			}
diff --git a/backend/mono/MonoSymbolFile.cs b/backend/mono/MonoSymbolFile.cs
index 0529e78..0158f56 100644
--- a/backend/mono/MonoSymbolFile.cs
+++ b/backend/mono/MonoSymbolFile.cs
@@ -182,7 +182,7 @@ namespace Mono.Debugger.Backend.Mono
 		internal readonly TargetMemoryInfo TargetMemoryInfo;
 		internal readonly MonoLanguageBackend MonoLanguage;
 		internal readonly Architecture Architecture;
-		protected readonly Process process;
+		protected readonly ProcessServant process;
 		MonoSymbolTable symtab;
 		Module module;
 		string name;
@@ -196,7 +196,7 @@ namespace Mono.Debugger.Backend.Mono
 		Dictionary<C.SourceFileEntry,SourceFile> source_file_hash;
 		Hashtable method_index_hash;
 
-		internal MonoSymbolFile (MonoLanguageBackend language, Process process,
+		internal MonoSymbolFile (MonoLanguageBackend language, ProcessServant process,
 					 TargetMemoryAccess memory, TargetAddress address)
 		{
 			this.MonoLanguage = language;
@@ -231,7 +231,7 @@ namespace Mono.Debugger.Backend.Mono
 				ImageFile = shadow_location;
 
 			try {
-				Assembly = Cecil.AssemblyDefinition.ReadAssembly (ImageFile);
+				Assembly = Cecil.AssemblyFactory.GetAssembly (ImageFile);
 			} catch (Exception ex) {
 				throw new SymbolTableException (
 					"Cannot load symbol file `{0}': {1}", ImageFile, ex);
@@ -244,7 +244,7 @@ namespace Mono.Debugger.Backend.Mono
 			string mdb_file = ImageFile + ".mdb";
 
 			try {
-				File = C.MonoSymbolFile.ReadSymbolFile (ModuleDefinition, mdb_file);
+				File = C.MonoSymbolFile.ReadSymbolFile (Assembly, mdb_file);
 				if (File == null)
 					Report.Error ("Cannot load symbol file `{0}'", mdb_file);
 				else if (ModuleDefinition.Mvid != File.Guid) {
@@ -571,7 +571,7 @@ namespace Mono.Debugger.Backend.Mono
 		// This must match mono_type_get_desc() in mono/metadata/debug-helpers.c.
 		protected static string GetTypeSignature (Cecil.TypeReference t)
 		{
-			Cecil.ByReferenceType rtype = t as Cecil.ByReferenceType;
+			Cecil.ReferenceType rtype = t as Cecil.ReferenceType;
 			if (rtype != null)
 				return GetTypeSignature (rtype.ElementType) + "&";
 
@@ -693,7 +693,7 @@ namespace Mono.Debugger.Backend.Mono
 				signature = null;
 			}
 
-			var types = Assembly.MainModule.Types;
+			Cecil.TypeDefinitionCollection types = Assembly.MainModule.Types;
 			// FIXME: Work around an API problem in Cecil.
 			foreach (Cecil.TypeDefinition type in types) {
 				if (!method_name.StartsWith (type.FullName))
@@ -773,7 +773,7 @@ namespace Mono.Debugger.Backend.Mono
 		{
 			MonoClassType klass = null;
 
-			var types = Assembly.MainModule.Types;
+			Cecil.TypeDefinitionCollection types = Assembly.MainModule.Types;
 			// FIXME: Work around an API problem in Cecil.
 			foreach (Cecil.TypeDefinition type in types) {
 				if (type.FullName != class_name)
@@ -822,23 +822,23 @@ namespace Mono.Debugger.Backend.Mono
 				if (cname == cgen_attr) {
 					is_compiler_generated = true;
 				} else if (cname == debugger_display_attr) {
-					string text = (string) cattr.ConstructorArguments [0].Value;
+					string text = (string) cattr.ConstructorParameters [0];
 					debugger_display = new DebuggerDisplayAttribute (text);
-					foreach (var named_arg in cattr.Properties) {
-						string key = named_arg.Name;
+					foreach (DictionaryEntry prop in cattr.Properties) {
+						string key = (string) prop.Key;
 						if (key == "Name")
-							debugger_display.Name = (string) named_arg.Argument.Value;
+							debugger_display.Name = (string) prop.Value;
 						else if (key == "Type")
-							debugger_display.Type = (string) named_arg.Argument.Value;
+							debugger_display.Type = (string) prop.Value;
 						else {
 							debugger_display = null;
 							break;
 						}
 					}
 				} else if (cname == browsable_attr) {
-					browsable_state = (DebuggerBrowsableState) cattr.GetBlob () [2];
+					browsable_state = (DebuggerBrowsableState) cattr.Blob [2];
 				} else if (cname == type_proxy_attr) {
-					string text = (string) cattr.ConstructorArguments [0].Value;
+					string text = (string) cattr.ConstructorParameters [0];
 					type_proxy = new DebuggerTypeProxyAttribute (text);
 				}
 			}
@@ -1340,7 +1340,7 @@ namespace Mono.Debugger.Backend.Mono
 					}
 				}
 
-				var param_info = mdef.Parameters;
+				Cecil.ParameterDefinitionCollection param_info = mdef.Parameters;
 				for (int i = 0; i < param_info.Count; i++) {
 					if (captured_vars.ContainsKey (param_info [i].Name))
 						continue;
diff --git a/backend/mono/MonoThreadManager.cs b/backend/mono/MonoThreadManager.cs
index df0dbab..62f3f12 100644
--- a/backend/mono/MonoThreadManager.cs
+++ b/backend/mono/MonoThreadManager.cs
@@ -64,10 +64,10 @@ namespace Mono.Debugger.Backend.Mono
 
 	internal class MonoThreadManager
 	{
-		Process process;
+		ProcessServant process;
 		MonoDebuggerInfo debugger_info;
 
-		protected MonoThreadManager (Process process, Inferior inferior,
+		protected MonoThreadManager (ProcessServant process, Inferior inferior,
 					     MonoDebuggerInfo debugger_info)
 		{
 			this.process = process;
@@ -79,7 +79,7 @@ namespace Mono.Debugger.Backend.Mono
 			notification_bpt.Insert (inferior);
 		}
 
-		public static MonoThreadManager Initialize (Process process, Inferior inferior,
+		public static MonoThreadManager Initialize (ProcessServant process, Inferior inferior,
 							    TargetAddress info, bool attach)
 		{
 			MonoDebuggerInfo debugger_info = MonoDebuggerInfo.Create (inferior, info);
@@ -106,7 +106,6 @@ namespace Mono.Debugger.Backend.Mono
 		AddressBreakpoint notification_bpt;
 		IntPtr mono_runtime_info;
 		int debugger_version;
-		int thread_abort_signal;
 
 		internal bool HasCodeBuffer {
 			get;
@@ -150,11 +149,6 @@ namespace Mono.Debugger.Backend.Mono
 				notification_bpt.Remove (inferior);
 				notification_bpt = null;
 			}
-
-			if (debugger_info.HasThreadAbortSignal)
-				thread_abort_signal = inferior.ReadInteger (debugger_info.ThreadAbortSignal);
-			else
-				thread_abort_signal = inferior.MonoThreadAbortSignal;
 		}
 
 		internal void InitCodeBuffer (Inferior inferior, TargetAddress code_buffer)
@@ -255,8 +249,8 @@ namespace Mono.Debugger.Backend.Mono
 		{
 			if ((flags & (ThreadFlags.Internal | ThreadFlags.ThreadPool)) != ThreadFlags.Internal) {
 				engine.Thread.ThreadFlags &= ~(Thread.Flags.Daemon | Thread.Flags.Immutable);
-				if (engine != process.MainThreadServant)
-					process.Debugger.OnManagedThreadCreatedEvent (engine.Thread);
+				if (engine != process.MainThread)
+					process.Debugger.Client.OnManagedThreadCreatedEvent (engine.Thread);
 			} else if ((flags & ThreadFlags.ThreadPool) != 0) {
 				engine.Thread.ThreadFlags &= ~Thread.Flags.Immutable;
 			}
@@ -323,13 +317,13 @@ namespace Mono.Debugger.Backend.Mono
 				case NotificationType.AcquireGlobalThreadLock:
 					Report.Debug (DebugFlags.Threads,
 						      "{0} received notification {1}", engine, type);
-					engine.Process.AcquireGlobalThreadLock (engine);
+					engine.ProcessServant.AcquireGlobalThreadLock (engine);
 					break;
 
 				case NotificationType.ReleaseGlobalThreadLock:
 					Report.Debug (DebugFlags.Threads,
 						      "{0} received notification {1}", engine, type);
-					engine.Process.ReleaseGlobalThreadLock (engine);
+					engine.ProcessServant.ReleaseGlobalThreadLock (engine);
 					break;
 
 				case NotificationType.ThreadCreated: {
@@ -370,7 +364,7 @@ namespace Mono.Debugger.Backend.Mono
 						      "{0} created gc thread: {1:x} {2}",
 						      engine, tid, data);
 
-					engine = engine.Process.GetEngineByTID (inferior, tid);
+					engine = engine.ProcessServant.GetEngineByTID (inferior, tid);
 					if (engine == null)
 						throw new InternalError ();
 
@@ -393,7 +387,7 @@ namespace Mono.Debugger.Backend.Mono
 				case NotificationType.InitializeThreadManager:
 					csharp_language = inferior.Process.CreateMonoLanguage (
 						debugger_info);
-					if (engine.Process.IsAttached)
+					if (engine.ProcessServant.IsAttached)
 						csharp_language.InitializeAttach (inferior);
 					else
 						csharp_language.Initialize (inferior);
@@ -403,7 +397,7 @@ namespace Mono.Debugger.Backend.Mono
 				case NotificationType.ReachedMain: {
 					Inferior.StackFrame iframe = inferior.GetCurrentFrame (false);
 					engine.SetMainReturnAddress (iframe.StackPointer);
-					engine.Process.OnProcessReachedMainEvent ();
+					engine.ProcessServant.OnProcessReachedMainEvent ();
 					resume_target = !engine.InitializeBreakpoints ();
 					return true;
 				}
@@ -471,7 +465,7 @@ namespace Mono.Debugger.Backend.Mono
 			}
 
 			if ((cevent.Type == Inferior.ChildEventType.CHILD_STOPPED) &&
-			    (cevent.Argument == thread_abort_signal)) {
+			    (cevent.Argument == inferior.MonoThreadAbortSignal)) {
 				resume_target = true;
 				return true;
 			}
@@ -545,8 +539,6 @@ namespace Mono.Debugger.Backend.Mono
 
 		public readonly TargetAddress AbortRuntimeInvoke = TargetAddress.Null;
 
-		public readonly TargetAddress ThreadAbortSignal = TargetAddress.Null;
-
 		public static MonoDebuggerInfo Create (TargetMemoryAccess memory, TargetAddress info)
 		{
 			TargetBinaryReader header = memory.ReadMemory (info, 24).GetReader ();
@@ -596,10 +588,6 @@ namespace Mono.Debugger.Backend.Mono
 			get { return CheckRuntimeVersion (81, 5); }
 		}
 
-		public bool HasThreadAbortSignal {
-			get { return CheckRuntimeVersion (81, 6); }
-		}
-
 		protected MonoDebuggerInfo (TargetMemoryAccess memory, TargetReader reader)
 		{
 			reader.Offset = 8;
@@ -659,9 +647,6 @@ namespace Mono.Debugger.Backend.Mono
 			if (HasAbortRuntimeInvoke)
 				AbortRuntimeInvoke = reader.ReadAddress ();
 
-			if (HasThreadAbortSignal)
-				ThreadAbortSignal = reader.ReadAddress ();
-
 			Report.Debug (DebugFlags.JitSymtab, this);
 		}
 	}
diff --git a/backend/os/Bfd.cs b/backend/os/Bfd.cs
index 178e3da..ff6a8ca 100644
--- a/backend/os/Bfd.cs
+++ b/backend/os/Bfd.cs
@@ -463,12 +463,12 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		public Process Process {
+		public ProcessServant Process {
 			get { return os.Process; }
 		}
 
 		public NativeLanguage NativeLanguage {
-			get { return (NativeLanguage) os.Process.NativeLanguage; }
+			get { return os.Process.NativeLanguage; }
 		}
 
 		internal DwarfReader DwarfReader {
diff --git a/backend/os/BfdDisassembler.cs b/backend/os/BfdDisassembler.cs
index 0ba006a..b43a3c8 100644
--- a/backend/os/BfdDisassembler.cs
+++ b/backend/os/BfdDisassembler.cs
@@ -13,7 +13,7 @@ namespace Mono.Debugger.Backend
 	internal class BfdDisassembler : Disassembler, IDisposable
 	{
 		IntPtr handle;
-		Process process;
+		ProcessServant process;
 
 		[DllImport("monodebuggerserver")]
 		extern static int bfd_glue_disassemble_insn (IntPtr handle, long address);
@@ -28,7 +28,7 @@ namespace Mono.Debugger.Backend
 		OutputHandler output_handler;
 		PrintAddressHandler print_handler;
 
-		internal BfdDisassembler (Process process, bool is_x86_64)
+		internal BfdDisassembler (ProcessServant process, bool is_x86_64)
 		{
 			this.process = process;
 
diff --git a/backend/os/DarwinOperatingSystem.cs b/backend/os/DarwinOperatingSystem.cs
index 045b732..1fccc2f 100644
--- a/backend/os/DarwinOperatingSystem.cs
+++ b/backend/os/DarwinOperatingSystem.cs
@@ -12,7 +12,7 @@ namespace Mono.Debugger.Backend
 		Hashtable bfd_hash;
 		Bfd main_bfd;
 
-		public DarwinOperatingSystem (Process process)
+		public DarwinOperatingSystem (ProcessServant process)
 			: base (process)
 		{
 			this.bfd_hash = Hashtable.Synchronized (new Hashtable ());
diff --git a/backend/os/DwarfReader.cs b/backend/os/DwarfReader.cs
index 055e154..6a7ed80 100644
--- a/backend/os/DwarfReader.cs
+++ b/backend/os/DwarfReader.cs
@@ -108,7 +108,6 @@ namespace Mono.Debugger.Backend
 		ObjectCache debug_pubnames_reader;
 		ObjectCache debug_pubtypes_reader;
 		ObjectCache debug_str_reader;
-		ObjectCache debug_ranges_reader;
 
 		Hashtable source_file_hash;
 		Hashtable method_source_hash;
@@ -151,7 +150,6 @@ namespace Mono.Debugger.Backend
 			debug_pubtypes_reader = create_reader (".debug_pubtypes", true);
 			debug_str_reader = create_reader (".debug_str", true);
 			debug_loc_reader = create_reader (".debug_loc", false);
-			debug_ranges_reader = create_reader (".debug_ranges", true);
 
 			compile_unit_hash = Hashtable.Synchronized (new Hashtable ());
 			method_source_hash = Hashtable.Synchronized (new Hashtable ());
@@ -789,13 +787,6 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		public DwarfBinaryReader DebugRangesReader {
-			get {
-				return new DwarfBinaryReader (
-					bfd, (TargetBlob) debug_ranges_reader.Data, Is64Bit);
-			}
-		}
-
 		public string FileName {
 			get {
 				return filename;
@@ -881,8 +872,7 @@ namespace Mono.Debugger.Backend
 			try_block               = 0x32,
 			variant_block           = 0x33,
 			variable		= 0x34,
-			volatile_type           = 0x35,
-			dwarf3_namespace        = 0x39
+			volatile_type           = 0x35
 		}
 
 		protected enum DwarfAttribute {
@@ -944,10 +934,7 @@ namespace Mono.Debugger.Backend
 			use_location            = 0x4a,
 			variable_parameter      = 0x4b,
 			virtuality		= 0x4c,
-			vtable_elem_location	= 0x4d,
-			entry_pc		= 0x52,
-			extension		= 0x54,
-			ranges			= 0x55
+			vtable_elem_location	= 0x4d
 		}
 
 		protected enum DwarfBaseTypeEncoding {
@@ -1781,11 +1768,8 @@ namespace Mono.Debugger.Backend
 
 				children = new ArrayList ();
 
-				while (reader.PeekByte () != 0) {
-					Die child = CreateDie (reader, comp_unit);
-					child.ReadChildren (reader);
-					children.Add (child);
-				}
+				while (reader.PeekByte () != 0)
+					children.Add (CreateDie (reader, comp_unit));
 
 				reader.Position++;
 				return children;
@@ -1822,6 +1806,11 @@ namespace Mono.Debugger.Backend
 
 				debug ("NEW DIE: {0} {1} {2} {3}", GetType (),
 				       abbrev, Offset, ChildrenOffset);
+
+				if (this is DieCompileUnit)
+					return;
+
+				ReadChildren (reader);
 			}
 
 			public Die CreateDie (DwarfBinaryReader reader, CompilationUnit comp_unit)
@@ -1893,9 +1882,6 @@ namespace Mono.Debugger.Backend
 					debug ("INLINED SUBROUTINE!");
 					return new DieSubprogram (reader, comp_unit, offset, abbrev);
 
-				case DwarfTag.dwarf3_namespace:
-					return new DieNamespace (reader, comp_unit, offset, abbrev);
-
 				default:
 					return new Die (reader, comp_unit, abbrev);
 				}
@@ -1922,7 +1908,7 @@ namespace Mono.Debugger.Backend
 					       AbbrevEntry abbrev)
 				: base (reader, comp_unit, abbrev)
 			{
-				if ((start_pc != null) && (end_pc != null))
+				if ((start_pc != 0) && (end_pc != 0))
 					is_continuous = true;
 
 				string file_name;
@@ -1934,7 +1920,7 @@ namespace Mono.Debugger.Backend
 				file = dwarf.GetSourceFile (file_name);
 			}
 
-			long? start_pc, end_pc, entry_pc;
+			long start_pc, end_pc;
 			string name;
 			string comp_dir;
 			bool is_continuous;
@@ -2035,10 +2021,6 @@ namespace Mono.Debugger.Backend
 					end_pc = (long) attribute.Data;
 					break;
 
-				case DwarfAttribute.entry_pc:
-					entry_pc = (long) attribute.Data;
-					break;
-
 				case DwarfAttribute.stmt_list:
 					line_offset = (long) attribute.Data;
 					has_lines = true;
@@ -2100,7 +2082,7 @@ namespace Mono.Debugger.Backend
 					if (!is_continuous)
 						throw new InvalidOperationException ();
 
-					return dwarf.GetAddress ((long) start_pc);
+					return dwarf.GetAddress (start_pc);
 				}
 			}
 
@@ -2109,18 +2091,7 @@ namespace Mono.Debugger.Backend
 					if (!is_continuous)
 						throw new InvalidOperationException ();
 
-					return dwarf.GetAddress ((long) end_pc);
-				}
-			}
-
-			public TargetAddress BaseAddress {
-				get {
-					if (entry_pc != null)
-						return dwarf.GetAddress ((long) entry_pc);
-					else if (start_pc != null)
-						return dwarf.GetAddress ((long) start_pc);
-					else
-						return TargetAddress.Null;
+					return dwarf.GetAddress (end_pc);
 				}
 			}
 
@@ -2182,11 +2153,10 @@ namespace Mono.Debugger.Backend
 			long abstract_origin, specification;
 			long real_offset, start_pc, end_pc;
 			bool is_continuous, resolved;
-			string full_name, name;
+			string name;
 			DwarfTargetMethod method;
 			LineNumberEngine engine;
 			ArrayList param_dies, local_dies;
-			TargetVariable this_var;
 			TargetVariable[] parameters, locals;
 			DwarfLocation frame_base;
 
@@ -2197,17 +2167,17 @@ namespace Mono.Debugger.Backend
 				switch (attribute.DwarfAttribute) {
 				case DwarfAttribute.low_pc:
 					start_pc = (long) attribute.Data;
-					debug ("{0}: start_pc = {1:x}", Offset, start_pc);
+					// Console.WriteLine ("{0}: start_pc = {1:x}", Offset, start_pc);
 					break;
 
 				case DwarfAttribute.high_pc:
 					end_pc = (long) attribute.Data;
-					debug ("{0}: end_pc = {1:x}", Offset, end_pc);
+					// Console.WriteLine ("{0}: end_pc = {1:x}", Offset, end_pc);
 					break;
 
 				case DwarfAttribute.name:
 					name = (string) attribute.Data;
-					debug ("{0}: name = {1}", Offset, name);
+					// Console.WriteLine ("{0}: name = {1}", Offset, name);
 					break;
 
 				case DwarfAttribute.frame_base:
@@ -2231,7 +2201,7 @@ namespace Mono.Debugger.Backend
 
 				case DwarfAttribute.abstract_origin:
 					abstract_origin = (long) attribute.Data;
-					debug ("{0} ABSTRACT ORIGIN: {1}", Offset, abstract_origin);
+					// debug ("{0} ABSTRACT ORIGIN: {1}", Offset, abstract_origin);
 					break;
 
 				case DwarfAttribute.specification:
@@ -2251,9 +2221,6 @@ namespace Mono.Debugger.Backend
 				case DwarfTag.variable:
 					return new DieVariable (this, reader, comp_unit, abbrev);
 
-				case DwarfTag.lexical_block:
-					return new DieLexicalBlock (this, reader, comp_unit, abbrev);
-
 				default:
 					return base.CreateDie (reader, comp_unit, offset, abbrev);
 				}
@@ -2299,7 +2266,7 @@ namespace Mono.Debugger.Backend
 
 			public string Name {
 				get {
-					return full_name ?? name ?? "<unknown>";
+					return name != null ? name : "<unknown>";
 				}
 			}
 
@@ -2412,121 +2379,57 @@ namespace Mono.Debugger.Backend
 				return retval;
 			}
 
-			public bool HasThis {
-				get {
-					return this_var != null;
-				}
-			}
-
-			public TargetVariable This {
-				get {
-					if (this_var == null)
-						throw new InvalidOperationException ();
-
-					return this_var;
-				}
-			}
-
 			public TargetVariable[] Parameters {
 				get {
+					if (parameters == null)
+						parameters = resolve_variables (param_dies);
+
 					return parameters;
 				}
 			}
 
 			public TargetVariable[] Locals {
 				get {
+					if (locals == null)
+						locals = resolve_variables (local_dies);
+
 					return locals;
 				}
 			}
 
-			public void Resolve ()
+			public void ReadLineNumbers ()
 			{
 				if (resolved)
 					return;
 
-				try {
-					DoResolve ();
-					resolved = true;
-				} catch (Exception ex) {
-					debug ("{0} FUCK: {1}", Offset, ex);
-					return;
-				}
-			}
-
-			void DoResolveSpecification (DieSubprogram specification)
-			{
-				specification.Resolve ();
-
-				if ((name == null) && (specification.name != null))
-					name = specification.name;
-				if ((local_dies == null) && (specification.local_dies != null))
-					local_dies = specification.local_dies;
-				if ((param_dies == null) && (specification.param_dies != null))
-					param_dies = specification.param_dies;
-			}
+				resolved = true;
 
-			void DoResolve ()
-			{
 				if (abstract_origin != 0) {
+					debug ("READ LINE NUMBERS: {0} {1}", this,
+					       abstract_origin);
 					DieSubprogram aorigin = comp_unit.GetSubprogram (abstract_origin);
+					debug ("READ LINE NUMBERS #1: {0}", aorigin);
 					if (aorigin == null)
 						throw new InternalError ();
 
-					DoResolveSpecification (aorigin);
+					aorigin.ReadLineNumbers ();
 				}
 
 				if (specification != 0) {
+					debug ("READ LINE NUMBERS #2: {0} {1}", this, specification);
 					DieSubprogram ssubprog = comp_unit.GetSubprogram (specification);
+					debug ("READ LINE NUMBERS #1: {0}", ssubprog);
 					if (ssubprog == null)
 						throw new InternalError ();
 
-					DoResolveSpecification (ssubprog);
-				}
-
-				locals = resolve_variables (local_dies);
-				parameters = resolve_variables (param_dies);
-
-				if (param_dies != null) {
-					DieMethodVariable first_var = (DieMethodVariable) param_dies [0];
-					if ((first_var.IsArtificial != null) && (first_var.Name == "this"))
-						this_var = first_var.Variable;
-				}
-
-				debug ("{0} resolve: {1} {2} {3} {4}", Offset, param_dies != null, local_dies != null,
-				       name != null, this_var != null);
-
-				if ((param_dies != null) && (name != null)) {
-					StringBuilder sb = new StringBuilder ();
-					if (this_var != null) {
-						sb.Append (this_var.Type.Name);
-						sb.Append ("::");
-					}
-					sb.Append (name);
-					sb.Append ("(");
-					bool first = true;
-					for (int i = 0; i < param_dies.Count; i++) {
-						DieMethodVariable the_param = (DieMethodVariable) param_dies [i];
-						if (!first)
-							sb.Append (", ");
-						if (the_param.Type == null)
-							continue;
-						sb.Append (the_param.Type.Name);
-						if (the_param.Name != null) {
-							sb.Append (" ");
-							sb.Append (the_param.Name);
-						}
-						first = false;
-					}
-					sb.Append (")");
-					full_name = sb.ToString ();
+					ssubprog.ReadLineNumbers ();
 				}
 			}
 
 			public override string ToString ()
 			{
 				return String.Format ("{0} ({1}:{2}:{3}:{4:x}:{5:x})", GetType (),
-						      name ?? "<unknown>", Offset, RealOffset,
-						      start_pc, end_pc);
+						      Name, Offset, RealOffset, start_pc, end_pc);
 			}
 		}
 
@@ -2619,7 +2522,6 @@ namespace Mono.Debugger.Backend
 				this.engine = engine;
 
 				CheckLoaded ();
-				Name = subprog.Name;
 			}
 
 			public DwarfReader DwarfReader {
@@ -2636,25 +2538,16 @@ namespace Mono.Debugger.Backend
 
 			public override TargetClassType GetDeclaringType (Thread target)
 			{
-				if (!subprog.HasThis)
-					return null;
-
-				var type = subprog.This.Type;
-
-				var ptype = type as TargetPointerType;
-				if (ptype != null)
-					type = ptype.StaticType;
-
-				return (TargetClassType) type;
+				return null;
 			}
 
 			public override bool HasThis {
-				get { return subprog.HasThis; }
+				get { return false; }
 			}
 
 			public override TargetVariable GetThis (Thread target)
 			{
-				return subprog.This;
+				throw new InvalidOperationException ();
 			}
 
 			public override TargetVariable[] GetParameters (Thread target)
@@ -2707,17 +2600,23 @@ namespace Mono.Debugger.Backend
 				if (source != null)
 					return;
 
-				subprog.Resolve ();
+				subprog.ReadLineNumbers ();
 
 				SourceAddress start = engine.Lookup (StartAddress);
 				SourceAddress end = engine.Lookup (EndAddress);
 
+				debug ("DTM - READ LNT #0: {0} {1} - {2} {3}",
+				       this, subprog, start, end);
+
 				if ((start == null) || (end == null))
 					return;
 
 				start_row = start.Row;
 				end_row = end.Row;
 
+				debug ("DTM - READ LNT: {0} {1} - {2} {3}", start.LineOffset,
+				       start.LineRange, end.LineOffset, end.LineRange);
+
 				SetMethodBounds (StartAddress + start.LineRange,
 						 EndAddress - end.LineOffset);
 
@@ -2758,7 +2657,6 @@ namespace Mono.Debugger.Backend
 			Hashtable abbrevs;
 			Hashtable types;
 			Hashtable subprogs;
-			Dictionary<long,DieNamespace> namespaces;
 
 			public CompilationUnit (DwarfReader dwarf, DwarfBinaryReader reader)
 			{
@@ -2779,7 +2677,6 @@ namespace Mono.Debugger.Backend
 				abbrevs = new Hashtable ();
 				types = new Hashtable ();
 				subprogs = new Hashtable ();
-				namespaces = new Dictionary<long,DieNamespace> ();
 
 				DwarfBinaryReader abbrev_reader = dwarf.DebugAbbrevReader;
 
@@ -2824,10 +2721,6 @@ namespace Mono.Debugger.Backend
 				}
 			}
 
-			internal string CurrentNamespace {
-				get; set;
-			}
-
 			public AbbrevEntry this [int abbrev_id] {
 				get {
 					if (abbrevs.Contains (abbrev_id))
@@ -2849,11 +2742,6 @@ namespace Mono.Debugger.Backend
 				subprogs.Add (offset, subprog);
 			}
 
-			public void AddNamespace (long offset, DieNamespace ns)
-			{
-				namespaces.Add (offset, ns);
-			}
-
 			public DieType GetType (long offset)
 			{
 				return (DieType) types [real_start_offset + offset];
@@ -2864,11 +2752,6 @@ namespace Mono.Debugger.Backend
 				return (DieSubprogram) subprogs [real_start_offset + offset];
 			}
 
-			public DieNamespace GetNamespace (long offset)
-			{
-				return namespaces [real_start_offset + offset];
-			}
-
 			public override string ToString ()
 			{
 				return String.Format ("CompilationUnit ({0},{1},{2} - {3},{4},{5})",
@@ -2880,24 +2763,17 @@ namespace Mono.Debugger.Backend
 
 		protected class DwarfLocation
 		{
-			CompilationUnit comp_unit;
-			DwarfLocation frame_base;
+			DieSubprogram subprog;
 			byte[] location_block;
 			long loclist_offset;
 			bool is_byref;
 
 			public DwarfLocation (DieSubprogram subprog, Attribute attribute, bool is_byref)
-				: this (subprog.comp_unit, subprog.FrameBase, attribute, is_byref)
-			{ }
-
-			public DwarfLocation (CompilationUnit comp_unit, DwarfLocation frame_base,
-					      Attribute attribute, bool is_byref)
 			{
-				this.comp_unit = comp_unit;
-				this.frame_base = frame_base;
+				this.subprog = subprog;
 				this.is_byref = is_byref;
 
-				if (comp_unit == null)
+				if (subprog == null)
 					throw new InternalError ();
 
 				switch (attribute.DwarfForm) {
@@ -2919,7 +2795,7 @@ namespace Mono.Debugger.Backend
 						    byte[] data)
 			{
 				TargetBinaryReader locreader = new TargetBinaryReader (
-					data, comp_unit.DwarfReader.TargetMemoryInfo);
+					data, subprog.dwarf.TargetMemoryInfo);
 
 				byte opcode = locreader.ReadByte ();
 				bool is_regoffset;
@@ -2940,9 +2816,10 @@ namespace Mono.Debugger.Backend
 				} else if (opcode == 0x91) { // DW_OP_fbreg
 					off = locreader.ReadSLeb128 ();
 
-					if (frame_base != null) {
+					if (subprog.FrameBase != null) {
 						TargetLocation rloc = new RelativeTargetLocation (
-							frame_base.GetLocation (frame, memory), off);
+							subprog.FrameBase.GetLocation (frame, memory),
+							off);
 						if (is_byref)
 							return new DereferencedTargetLocation (rloc);
 						else
@@ -2968,16 +2845,14 @@ namespace Mono.Debugger.Backend
 					return null;
 				}
 
-				reg = comp_unit.DwarfReader.bfd.Architecture.DwarfFrameRegisterMap [reg];
+				reg = subprog.dwarf.bfd.Architecture.DwarfFrameRegisterMap [reg];
 
 				MonoVariableLocation loc = MonoVariableLocation.Create (
 					memory, is_regoffset, frame.Registers [reg],
 					off, is_byref);
 
-				if (!locreader.IsEof) {
-					Console.WriteLine ("LOCREADER NOT AT EOF!");
+				if (!locreader.IsEof)
 					return null;
-				}
 
 				return loc;
 			}
@@ -2987,12 +2862,11 @@ namespace Mono.Debugger.Backend
 				if (location_block != null)
 					return GetLocation (frame, memory, location_block);
 
-				DwarfBinaryReader reader = comp_unit.DwarfReader.DebugLocationReader;
+				DwarfBinaryReader reader = subprog.dwarf.DebugLocationReader;
 				reader.Position = loclist_offset;
 
 				TargetAddress address = frame.TargetAddress;
-				TargetAddress base_address = comp_unit.DieCompileUnit.BaseAddress;
-
+				TargetAddress base_address = subprog.DieCompileUnit.StartAddress;
 
 				while (true) {
 					long start = reader.ReadAddress ();
@@ -3000,7 +2874,7 @@ namespace Mono.Debugger.Backend
 
 					if (start == -1) {
 						Console.WriteLine ("BASE SELECTION: {0:x}", end);
-						base_address = comp_unit.DwarfReader.GetAddress (end);
+						base_address = subprog.dwarf.GetAddress (end);
 						continue;
 					}
 
@@ -3019,30 +2893,7 @@ namespace Mono.Debugger.Backend
 				return null;
 			}
 
-			public TargetLocation GetLocation (TargetLocation location)
-			{
-				if (location_block == null)
-					throw new NotImplementedException ();
-
-				TargetBinaryReader locreader = new TargetBinaryReader (
-					location_block, comp_unit.DwarfReader.TargetMemoryInfo);
 
-				byte opcode = locreader.ReadByte ();
-
-				if (opcode == 0x23) // DW_OP_plus_uconst
-					location = new RelativeTargetLocation (location, locreader.ReadLeb128 ());
-				else {
-					Console.WriteLine ("UNKNOWN OPCODE: {0:x}", opcode);
-					return null;
-				}
-
-				if (!locreader.IsEof) {
-					Console.WriteLine ("LOCREADER NOT AT EOF!");
-					return null;
-				}
-
-				return location;
-			}
 		}
 
 		protected class DwarfTargetVariable : TargetVariable
@@ -3050,15 +2901,18 @@ namespace Mono.Debugger.Backend
 			readonly string name;
 			readonly TargetType type;
 			readonly DwarfLocation location;
-			readonly DieLexicalBlock lexical_block;
 
-			public DwarfTargetVariable (DieSubprogram subprog, string name, TargetType type,
-						    DwarfLocation location, DieLexicalBlock lexical_block)
+			protected DwarfTargetVariable (DieSubprogram subprog, string name, TargetType type)
 			{
 				this.name = name;
 				this.type = type;
+			}
+
+			public DwarfTargetVariable (DieSubprogram subprog, string name, TargetType type,
+						    DwarfLocation location)
+				: this (subprog, name, type)
+			{
 				this.location = location;
-				this.lexical_block = lexical_block;
 			}
 
 			public override string Name {
@@ -3071,9 +2925,6 @@ namespace Mono.Debugger.Backend
 
 			public override bool IsInScope (TargetAddress address)
 			{
-				if (lexical_block != null)
-					return lexical_block.IsInRange (address);
-
 				return true;
 			}
 
@@ -3131,68 +2982,10 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		protected class DieNamespace : Die
-		{
-			long offset;
-			string name;
-			DieNamespace extension;
-
-			public DieNamespace (DwarfBinaryReader reader, CompilationUnit comp_unit,
-					     long offset, AbbrevEntry abbrev)
-				: base (reader, comp_unit, abbrev)
-			{
-				this.offset = offset;
-				comp_unit.AddNamespace (offset, this);
-
-				if (extension != null) {
-					if (extension.name != null) {
-						if (name != null)
-							name = extension.name + "::" + name;
-						else
-							name = extension.name;
-					}
-				}
-			}
-
-			protected override void ProcessAttribute (Attribute attribute)
-			{
-				debug ("NAMESPACE ATTRIBUTE: {0}", attribute);
-				switch (attribute.DwarfAttribute) {
-				case DwarfAttribute.name:
-					name = (string) attribute.Data;
-					break;
-				case DwarfAttribute.extension:
-					debug ("NAMESPACE EXTENSION: {0}", attribute);
-					extension = comp_unit.GetNamespace ((long) attribute.Data);
-					break;
-				}
-			}
-
-			protected override ArrayList ReadChildren (DwarfBinaryReader reader)
-			{
-				string old_ns = comp_unit.CurrentNamespace;
-				if (name == null)
-					comp_unit.CurrentNamespace = null;
-				else if (comp_unit.CurrentNamespace != null)
-					comp_unit.CurrentNamespace = comp_unit.CurrentNamespace + "::" + name;
-				else
-					comp_unit.CurrentNamespace = name;
-
-				try {
-					debug ("NS CHILDREN: {0} -> {1}", name, comp_unit.CurrentNamespace);
-					return base.ReadChildren (reader);
-					debug ("NS CHILDREN DONE: {0}", name);
-				} finally {
-					comp_unit.CurrentNamespace = old_ns;
-				}
-			}
-		}
-
 		protected abstract class DieType : Die, ITypeEntry
 		{
 			string name;
 			protected long offset;
-			DieType specification;
 			bool resolved, type_created;
 			protected readonly Language language;
 			TargetType type;
@@ -3205,16 +2998,8 @@ namespace Mono.Debugger.Backend
 				this.language = reader.Bfd.NativeLanguage;
 				comp_unit.AddType (offset, this);
 
-				if (specification != null) {
-					if ((name == null) && (specification.name != null))
-						name = specification.Name;
-				}
-
-				if (name != null) {
-					if (comp_unit.CurrentNamespace != null)
-						name = comp_unit.CurrentNamespace + "::" + name;
+				if (name != null)
 					comp_unit.DwarfReader.AddType (this);
-				}
 			}
 
 			protected override void ProcessAttribute (Attribute attribute)
@@ -3223,9 +3008,6 @@ namespace Mono.Debugger.Backend
 				case DwarfAttribute.name:
 					name = (string) attribute.Data;
 					break;
-				case DwarfAttribute.specification:
-					specification = comp_unit.GetType ((long) attribute.Data);
-					break;
 				}
 			}
 
@@ -3247,7 +3029,6 @@ namespace Mono.Debugger.Backend
 				resolved = true;
 
 				if (type == null) {
-					debug ("RESOLVE TYPE FAILED: {0}", this);
 					type_created = true;
 					return null;
 				}
@@ -3288,6 +3069,14 @@ namespace Mono.Debugger.Backend
 				}
 			}
 
+			protected void SetName (string name)
+			{
+				if (resolved)
+					throw new InvalidOperationException ();
+
+				this.name = name;
+			}
+
 			internal TargetType GetAlias (string name)
 			{
 				if (this.name == null) {
@@ -3396,11 +3185,6 @@ namespace Mono.Debugger.Backend
 					else if (byte_size <= 8)
 						return FundamentalKind.Double;
 					break;
-
-				case DwarfBaseTypeEncoding.boolean:
-					if (byte_size == 1)
-						return FundamentalKind.Boolean;
-					break;
 				}
 
 				return FundamentalKind.Unknown;
@@ -3803,13 +3587,9 @@ namespace Mono.Debugger.Backend
 		protected class DieInheritance : Die
 		{
 			long type_offset;
-			DwarfLocation data_member_location;
+			long data_member_location;
 			DieType reference;
 
-			DwarfBaseInfo base_info;
-			NativeStructType base_type;
-			bool resolved;
-
 			public DieInheritance (DwarfBinaryReader reader,
 					       CompilationUnit comp_unit,
 					       AbbrevEntry abbrev)
@@ -3824,7 +3604,11 @@ namespace Mono.Debugger.Backend
 					break;
 
 				case DwarfAttribute.data_member_location:
-					data_member_location = new DwarfLocation (comp_unit, null, attribute, false);
+					// the location is specified as a
+					// block, it appears..  not sure the
+					// format, but it definitely isn't a (long).
+					//
+					// data_member_location = (long)attribute.Data;
 					break;
 
 				default:
@@ -3836,64 +3620,6 @@ namespace Mono.Debugger.Backend
 			public long TypeOffset {
 				get { return type_offset; }
 			}
-
-			public bool HasDataMember {
-				get { return data_member_location != null; }
-			}
-
-			public DwarfLocation DataMember {
-				get { return data_member_location; }
-			}
-
-			public DwarfBaseInfo BaseInfo {
-				get {
-					Resolve ();
-					return base_info;
-				}
-			}
-
-			public bool Resolve ()
-			{
-				if (resolved)
-					return base_info != null;
-
-				try {
-					DoResolve ();
-					return base_info != null;
-				} finally {
-					resolved = true;
-				}
-			}
-
-			void DoResolve ()
-			{
-				DieType type = comp_unit.GetType (type_offset);
-				if (type == null)
-					return;
-
-				base_type = type.ResolveType () as NativeStructType;
-				if (base_type == null)
-					return;
-
-				base_info = new DwarfBaseInfo (this, base_type);
-			}
-		}
-
-		protected class DwarfBaseInfo : NativeBaseInfo
-		{
-			public readonly DieInheritance Inheritance;
-
-			public DwarfBaseInfo (DieInheritance inheritance, NativeStructType base_type)
-				: base (base_type)
-			{
-				this.Inheritance = inheritance;
-			}
-
-			public override TargetLocation GetBaseLocation (TargetMemoryAccess memory,
-									TargetLocation location)
-			{
-				return Inheritance.DataMember.GetLocation (location);
-			}
 		}
 
 		protected class DieStructureType : DieType
@@ -3937,7 +3663,6 @@ namespace Mono.Debugger.Backend
 			ArrayList members;
 			NativeFieldInfo[] fields;
 			NativeStructType type;
-			DwarfBaseInfo base_info;
 
 			public override bool IsComplete {
 				get { return abbrev.HasChildren; }
@@ -3945,21 +3670,10 @@ namespace Mono.Debugger.Backend
 
 			protected override TargetType CreateType ()
 			{
-				if (!abbrev.HasChildren)
+				if (abbrev.HasChildren)
+					type = new NativeStructType (language, Name, fields, byte_size);
+				else
 					return new NativeTypeAlias (language, Name, Name);
-
-				foreach (Die child in Children) {
-					DieInheritance inheritance = child as DieInheritance;
-					if ((inheritance == null) || !inheritance.HasDataMember)
-						continue;
-					if (!inheritance.Resolve ())
-						continue;
-					debug ("INHERITANCE: {0} {1}", inheritance, inheritance.BaseInfo);
-					base_info = inheritance.BaseInfo;
-					break;
-				}
-
-				type = new NativeStructType (language, Name, byte_size, base_info);
 				return type;
 			}
 
@@ -4042,6 +3756,9 @@ namespace Mono.Debugger.Backend
 
 			protected override TargetType CreateType ()
 			{
+				if (!prototyped)
+					return null;
+
 				if (type_offset != 0) {
 					return_type = GetReference (type_offset);
 					if (return_type == null)
@@ -4079,84 +3796,6 @@ namespace Mono.Debugger.Backend
 			}
 		}
 
-		protected class DieLexicalBlock : Die
-		{
-			DieSubprogram subprog;
-			long? ranges_offset;
-
-			public DieLexicalBlock (DieSubprogram subprog, DwarfBinaryReader reader,
-						CompilationUnit comp_unit, AbbrevEntry abbrev)
-				: base (reader, comp_unit, abbrev)
-			{
-				this.subprog = subprog;
-			}
-
-			protected override Die CreateDie (DwarfBinaryReader reader, CompilationUnit comp_unit,
-							  long offset, AbbrevEntry abbrev)
-			{
-				switch (abbrev.Tag) {
-				case DwarfTag.formal_parameter:
-					return new DieFormalParameter (subprog, reader, comp_unit, abbrev);
-
-				case DwarfTag.variable:
-					return new DieVariable (subprog, reader, comp_unit, abbrev, this);
-
-				case DwarfTag.lexical_block:
-					return new DieLexicalBlock (subprog, reader, comp_unit, abbrev);
-
-				default:
-					debug ("LEXICAL BLOCK ({0}): unknown die: {1}", Offset, abbrev.Tag);
-					return base.CreateDie (reader, comp_unit, offset, abbrev);
-				}
-			}
-
-			protected override void ProcessAttribute (Attribute attribute)
-			{
-				switch (attribute.DwarfAttribute) {
-				case DwarfAttribute.ranges:
-					ranges_offset = (long) attribute.Data;
-					break;
-
-				default:
-					debug ("UNKNOWN ATTRIBUTE: {0} {1}", this, attribute);
-					base.ProcessAttribute (attribute);
-					break;
-				}
-			}
-
-			public bool IsInRange (TargetAddress address)
-			{
-				if (ranges_offset == null)
-					return true;
-
-				DwarfBinaryReader reader = comp_unit.DwarfReader.DebugRangesReader;
-				reader.Position = (long) ranges_offset;
-
-				TargetAddress base_address = comp_unit.DieCompileUnit.BaseAddress;
-
-				while (true) {
-					long start = reader.ReadAddress ();
-					long end = reader.ReadAddress ();
-
-					if (start == -1) {
-						Console.WriteLine ("BASE SELECTION: {0:x}", end);
-						base_address = comp_unit.DwarfReader.GetAddress (end);
-						continue;
-					}
-
-					if ((start == 0) && (end == 0))
-						break;
-
-					if ((address < base_address+start) || (address >= base_address+end))
-						continue;
-
-					return true;
-				}
-
-				return false;
-			}
-		}
-
 		protected abstract class DieVariableBase : Die
 		{
 			string name;
@@ -4195,22 +3834,16 @@ namespace Mono.Debugger.Backend
 					return type_offset;
 				}
 			}
-
-			public override string ToString ()
-			{
-				return String.Format ("{0} ({1}:{2})", GetType ().Name, type_offset, name);
-			}
 		}
 
 		protected abstract class DieMethodVariable : DieVariableBase
 		{
 			public DieMethodVariable (DieSubprogram subprog, DwarfBinaryReader reader,
 						  CompilationUnit comp_unit, AbbrevEntry abbrev,
-						  DieLexicalBlock lexical_block, bool is_local)
+						  bool is_local)
 				: base (reader, comp_unit, abbrev)
 			{
 				this.subprog = subprog;
-				this.lexical_block = lexical_block;
 
 				if (subprog != null) {
 					if (is_local)
@@ -4227,10 +3860,6 @@ namespace Mono.Debugger.Backend
 					location_attr = attribute;
 					break;
 
-				case DwarfAttribute.artificial:
-					artificial = (bool) attribute.Data;
-					break;
-
 				default:
 					base.ProcessAttribute (attribute);
 					break;
@@ -4238,11 +3867,9 @@ namespace Mono.Debugger.Backend
 			}
 
 			Attribute location_attr;
-			DwarfTargetVariable variable;
+			TargetVariable variable;
 			DieSubprogram subprog;
 			TargetType type;
-			DieLexicalBlock lexical_block;
-			bool artificial;
 			bool resolved;
 
 			protected bool DoResolveType ()
@@ -4270,8 +3897,7 @@ namespace Mono.Debugger.Backend
 
 				DwarfLocation location = new DwarfLocation (
 					subprog, location_attr, type.IsByRef);
-				variable = new DwarfTargetVariable (
-					subprog, Name, type, location, lexical_block);
+				variable = new DwarfTargetVariable (subprog, Name, type, location);
 				return true;
 			}
 
@@ -4282,7 +3908,7 @@ namespace Mono.Debugger.Backend
 				}
 			}
 
-			public DwarfTargetVariable Variable {
+			public TargetVariable Variable {
 				get {
 					if (!resolved) {
 						DoResolve ();
@@ -4292,19 +3918,13 @@ namespace Mono.Debugger.Backend
 					return variable;
 				}
 			}
-
-			public bool IsArtificial {
-				get {
-					return artificial;
-				}
-			}
 		}
 
 		protected class DieFormalParameter : DieMethodVariable
 		{
 			public DieFormalParameter (DieSubprogram parent, DwarfBinaryReader reader,
 						   CompilationUnit comp_unit, AbbrevEntry abbrev)
-				: base (parent, reader, comp_unit, abbrev, null, false)
+				: base (parent, reader, comp_unit, abbrev, false)
 			{ }
 		}
 
@@ -4312,13 +3932,7 @@ namespace Mono.Debugger.Backend
 		{
 			public DieVariable (DieSubprogram parent, DwarfBinaryReader reader,
 					    CompilationUnit comp_unit, AbbrevEntry abbrev)
-				: base (parent, reader, comp_unit, abbrev, null, true)
-			{ }
-
-			public DieVariable (DieSubprogram parent, DwarfBinaryReader reader,
-					    CompilationUnit comp_unit, AbbrevEntry abbrev,
-					    DieLexicalBlock lexical)
-				: base (parent, reader, comp_unit, abbrev, lexical, true)
+				: base (parent, reader, comp_unit, abbrev, true)
 			{ }
 		}
 
diff --git a/backend/os/LinuxOperatingSystem.cs b/backend/os/LinuxOperatingSystem.cs
index b6437eb..b9cd6fa 100644
--- a/backend/os/LinuxOperatingSystem.cs
+++ b/backend/os/LinuxOperatingSystem.cs
@@ -12,7 +12,7 @@ namespace Mono.Debugger.Backend
 		Hashtable bfd_hash;
 		Bfd main_bfd;
 
-		public LinuxOperatingSystem (Process process)
+		public LinuxOperatingSystem (ProcessServant process)
 			: base (process)
 		{
 			this.bfd_hash = Hashtable.Synchronized (new Hashtable ());
diff --git a/backend/os/Makefile.am b/backend/os/Makefile.am
index bd74aad..2a9f019 100644
--- a/backend/os/Makefile.am
+++ b/backend/os/Makefile.am
@@ -1 +1,16 @@
+SUBDIRS = bfd
+
+noinst_LTLIBRARIES = libmonodebuggerbfdglue.la
+
+libmonodebuggerbfdglue_la_SOURCES = \
+	bfdglue.c		\
+	bfdglue.h
+
+libmonodebuggerbfdglue_la_LIBADD = bfd/opcodes/libopcodes.la bfd/libbfd.la @BASE_DEPENDENCIES_LIBS@
+libmonodebuggerbfdglue_la_LDFLAGS = -no-undefined -module -export-dynamic -shared
+
+INCLUDES = -I$(srcdir)/bfd -I$(srcdir)/bfd/include -I$(srcdir)/bfd/opcodes @BASE_DEPENDENCIES_CFLAGS@
+
+CLEANFILES = lib*.a lib*.dll
+
 EXTRA_DIST = $(srcdir)/*.cs
diff --git a/backend/os/Makefile.in b/backend/os/Makefile.in
index 5d590f1..9bef215 100644
--- a/backend/os/Makefile.in
+++ b/backend/os/Makefile.in
@@ -13,6 +13,7 @@
 # PARTICULAR PURPOSE.
 
 @SET_MAKE@
+
 VPATH = @srcdir@
 pkgdatadir = $(datadir)/@PACKAGE@
 pkglibdir = $(libdir)/@PACKAGE@
@@ -42,8 +43,42 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-SOURCES =
-DIST_SOURCES =
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libmonodebuggerbfdglue_la_DEPENDENCIES = bfd/opcodes/libopcodes.la \
+	bfd/libbfd.la
+am_libmonodebuggerbfdglue_la_OBJECTS = bfdglue.lo
+libmonodebuggerbfdglue_la_OBJECTS =  \
+	$(am_libmonodebuggerbfdglue_la_OBJECTS)
+libmonodebuggerbfdglue_la_LINK = $(LIBTOOL) --tag=CC \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+	$(AM_CFLAGS) $(CFLAGS) $(libmonodebuggerbfdglue_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+DEFAULT_INCLUDES = -I. at am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(libmonodebuggerbfdglue_la_SOURCES)
+DIST_SOURCES = $(libmonodebuggerbfdglue_la_SOURCES)
+RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
+	html-recursive info-recursive install-data-recursive \
+	install-dvi-recursive install-exec-recursive \
+	install-html-recursive install-info-recursive \
+	install-pdf-recursive install-ps-recursive install-recursive \
+	installcheck-recursive installdirs-recursive pdf-recursive \
+	ps-recursive uninstall-recursive
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+ETAGS = etags
+CTAGS = ctags
+DIST_SUBDIRS = $(SUBDIRS)
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 ACLOCAL = @ACLOCAL@
 AMTAR = @AMTAR@
@@ -117,6 +152,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
@@ -195,10 +231,21 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
+SUBDIRS = bfd
+noinst_LTLIBRARIES = libmonodebuggerbfdglue.la
+libmonodebuggerbfdglue_la_SOURCES = \
+	bfdglue.c		\
+	bfdglue.h
+
+libmonodebuggerbfdglue_la_LIBADD = bfd/opcodes/libopcodes.la bfd/libbfd.la @BASE_DEPENDENCIES_LIBS@
+libmonodebuggerbfdglue_la_LDFLAGS = -no-undefined -module -export-dynamic -shared
+INCLUDES = -I$(srcdir)/bfd -I$(srcdir)/bfd/include -I$(srcdir)/bfd/opcodes @BASE_DEPENDENCIES_CFLAGS@
+CLEANFILES = lib*.a lib*.dll
 EXTRA_DIST = $(srcdir)/*.cs
-all: all-am
+all: all-recursive
 
 .SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
 $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
@@ -229,17 +276,181 @@ $(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libmonodebuggerbfdglue.la: $(libmonodebuggerbfdglue_la_OBJECTS) $(libmonodebuggerbfdglue_la_DEPENDENCIES) 
+	$(libmonodebuggerbfdglue_la_LINK)  $(libmonodebuggerbfdglue_la_OBJECTS) $(libmonodebuggerbfdglue_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/bfdglue.Plo at am__quote@
+
+.c.o:
+ at am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+ at am__fastdepCC_FALSE@	$(COMPILE) -c $<
+
+.c.obj:
+ at am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+ at am__fastdepCC_FALSE@	$(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.c.lo:
+ at am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+ at am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<
+
 mostlyclean-libtool:
 	-rm -f *.lo
 
 clean-libtool:
 	-rm -rf .libs _libs
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run `make' without going through this Makefile.
+# To change the values of `make' variables: instead of editing Makefiles,
+# (1) if the variable is set in `config.status', edit `config.status'
+#     (which will cause the Makefiles to be regenerated when you run `make');
+# (2) otherwise, pass the desired values on the `make' command line.
+$(RECURSIVE_TARGETS):
+	@failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+$(RECURSIVE_CLEAN_TARGETS):
+	@failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	rev=''; for subdir in $$list; do \
+	  if test "$$subdir" = "."; then :; else \
+	    rev="$$subdir $$rev"; \
+	  fi; \
+	done; \
+	rev="$$rev ."; \
+	target=`echo $@ | sed s/-recursive//`; \
+	for subdir in $$rev; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done && test -z "$$fail"
+tags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) tags); \
+	done
+ctags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) ctags); \
+	done
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
 tags: TAGS
-TAGS:
 
+TAGS: tags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      tags="$$tags $$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	    $$tags $$unique; \
+	fi
 ctags: CTAGS
-CTAGS:
-
+CTAGS: ctags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 
 distdir: $(DISTFILES)
 	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
@@ -267,19 +478,37 @@ distdir: $(DISTFILES)
 	    || exit 1; \
 	  fi; \
 	done
+	list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test -d "$(distdir)/$$subdir" \
+	    || $(MKDIR_P) "$(distdir)/$$subdir" \
+	    || exit 1; \
+	    distdir=`$(am__cd) $(distdir) && pwd`; \
+	    top_distdir=`$(am__cd) $(top_distdir) && pwd`; \
+	    (cd $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$top_distdir" \
+	        distdir="$$distdir/$$subdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
 check-am: all-am
-check: check-am
-all-am: Makefile
-installdirs:
-install: install-am
-install-exec: install-exec-am
-install-data: install-data-am
-uninstall: uninstall-am
+check: check-recursive
+all-am: Makefile $(LTLIBRARIES)
+installdirs: installdirs-recursive
+installdirs-am:
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
 
 install-am: all-am
 	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
 
-installcheck: installcheck-am
+installcheck: installcheck-recursive
 install-strip:
 	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
 	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
@@ -288,6 +517,7 @@ install-strip:
 mostlyclean-generic:
 
 clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
 
 distclean-generic:
 	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
@@ -295,72 +525,82 @@ distclean-generic:
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
 	@echo "it deletes files that may require special tools to rebuild."
-clean: clean-am
+clean: clean-recursive
 
-clean-am: clean-generic clean-libtool mostlyclean-am
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+	mostlyclean-am
 
-distclean: distclean-am
+distclean: distclean-recursive
+	-rm -rf ./$(DEPDIR)
 	-rm -f Makefile
-distclean-am: clean-am distclean-generic
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
 
-dvi: dvi-am
+dvi: dvi-recursive
 
 dvi-am:
 
-html: html-am
+html: html-recursive
 
-info: info-am
+info: info-recursive
 
 info-am:
 
 install-data-am:
 
-install-dvi: install-dvi-am
+install-dvi: install-dvi-recursive
 
 install-exec-am:
 
-install-html: install-html-am
+install-html: install-html-recursive
 
-install-info: install-info-am
+install-info: install-info-recursive
 
 install-man:
 
-install-pdf: install-pdf-am
+install-pdf: install-pdf-recursive
 
-install-ps: install-ps-am
+install-ps: install-ps-recursive
 
 installcheck-am:
 
-maintainer-clean: maintainer-clean-am
+maintainer-clean: maintainer-clean-recursive
+	-rm -rf ./$(DEPDIR)
 	-rm -f Makefile
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
-mostlyclean: mostlyclean-am
+mostlyclean: mostlyclean-recursive
 
-mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
 
-pdf: pdf-am
+pdf: pdf-recursive
 
 pdf-am:
 
-ps: ps-am
+ps: ps-recursive
 
 ps-am:
 
 uninstall-am:
 
-.MAKE: install-am install-strip
-
-.PHONY: all all-am check check-am clean clean-generic clean-libtool \
-	distclean distclean-generic distclean-libtool distdir dvi \
-	dvi-am html html-am info info-am install install-am \
-	install-data install-data-am install-dvi install-dvi-am \
-	install-exec install-exec-am install-html install-html-am \
-	install-info install-info-am install-man install-pdf \
-	install-pdf-am install-ps install-ps-am install-strip \
-	installcheck installcheck-am installdirs maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-generic \
-	mostlyclean-libtool pdf pdf-am ps ps-am uninstall uninstall-am
+.MAKE: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) install-am \
+	install-strip
+
+.PHONY: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) CTAGS GTAGS \
+	all all-am check check-am clean clean-generic clean-libtool \
+	clean-noinstLTLIBRARIES ctags ctags-recursive distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-recursive \
+	uninstall uninstall-am
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
diff --git a/backend/os/OperatingSystemBackend.cs b/backend/os/OperatingSystemBackend.cs
index ce4882e..58f4889 100644
--- a/backend/os/OperatingSystemBackend.cs
+++ b/backend/os/OperatingSystemBackend.cs
@@ -5,9 +5,9 @@ namespace Mono.Debugger.Backend
 {
 	internal abstract class OperatingSystemBackend : DebuggerMarshalByRefObject, IDisposable
 	{
-		public readonly Process Process;
+		public readonly ProcessServant Process;
 
-		protected OperatingSystemBackend (Process process)
+		protected OperatingSystemBackend (ProcessServant process)
 		{
 			this.Process = process;
 		}
diff --git a/backend/os/WindowsOperatingSystem.cs b/backend/os/WindowsOperatingSystem.cs
index 60cfbfd..a7dac4e 100644
--- a/backend/os/WindowsOperatingSystem.cs
+++ b/backend/os/WindowsOperatingSystem.cs
@@ -9,7 +9,7 @@ namespace Mono.Debugger.Backend
 	internal class WindowsOperatingSystem : OperatingSystemBackend
 	{
 
-		public WindowsOperatingSystem(Process process)
+		public WindowsOperatingSystem(ProcessServant process)
 			: base (process)
 		{
 		}
diff --git a/sysdeps/bfd/COPYING b/backend/os/bfd/COPYING
similarity index 100%
rename from sysdeps/bfd/COPYING
rename to backend/os/bfd/COPYING
diff --git a/sysdeps/bfd/Makefile.am b/backend/os/bfd/Makefile.am
similarity index 100%
rename from sysdeps/bfd/Makefile.am
rename to backend/os/bfd/Makefile.am
diff --git a/backend/os/bfd/Makefile.in b/backend/os/bfd/Makefile.in
new file mode 100644
index 0000000..b6fc40c
--- /dev/null
+++ b/backend/os/bfd/Makefile.in
@@ -0,0 +1,726 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+ at SET_MAKE@
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+target_triplet = @target@
+subdir = backend/os/bfd
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in COPYING
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
+	$(top_srcdir)/configure.in
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libbfd_la_DEPENDENCIES = libiberty/libiberty.la
+am__libbfd_la_SOURCES_DIST = elf32-i386.c elf32.c elf.c elflink.c \
+	elf-strtab.c elf-eh-frame.c dwarf1.c i386linux.c aout32.c \
+	efi-app-ia32.c peigen.c cofflink.c elf32-gen.c cpu-i386.c \
+	pe-i386.c pei-i386.c trad-core.c mach-o.c pef.c xsym.c \
+	elf64-x86-64.c elf64.c elf64-gen.c archive64.c rs6000-core.c \
+	cpu-rs6000.c cpu-powerpc.c archive.c archures.c bfd.c cache.c \
+	coffgen.c corefile.c format.c init.c libbfd.c opncls.c reloc.c \
+	section.c syms.c targets.c hash.c linker.c srec.c binary.c \
+	tekhex.c ihex.c stabs.c stab-syms.c merge.c dwarf2.c bfdio.c \
+	simple.c
+am__objects_1 = elf32-i386.lo elf32.lo elf.lo elflink.lo elf-strtab.lo \
+	elf-eh-frame.lo dwarf1.lo i386linux.lo aout32.lo \
+	efi-app-ia32.lo peigen.lo cofflink.lo elf32-gen.lo cpu-i386.lo \
+	pe-i386.lo pei-i386.lo trad-core.lo
+am__objects_2 = mach-o.lo pef.lo xsym.lo cpu-i386.lo
+am__objects_3 = elf64-x86-64.lo elf64.lo elf32-i386.lo elf32.lo elf.lo \
+	elflink.lo elf-strtab.lo elf-eh-frame.lo dwarf1.lo \
+	i386linux.lo aout32.lo efi-app-ia32.lo peigen.lo cofflink.lo \
+	elf64-gen.lo elf32-gen.lo cpu-i386.lo pe-i386.lo pei-i386.lo \
+	trad-core.lo archive64.lo
+am__objects_4 = mach-o.lo pef.lo rs6000-core.lo xsym.lo cpu-rs6000.lo \
+	cpu-powerpc.lo
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_FALSE at am__objects_5 = $(am__objects_1)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_TRUE at am__objects_5 = $(am__objects_2)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_TRUE at am__objects_5 = $(am__objects_3)
+ at BFD_TARGET_POWERPC_TRUE@am__objects_5 = $(am__objects_4) \
+ at BFD_TARGET_POWERPC_TRUE@	$(am__objects_1)
+am__objects_6 = archive.lo archures.lo bfd.lo cache.lo coffgen.lo \
+	corefile.lo format.lo init.lo libbfd.lo opncls.lo reloc.lo \
+	section.lo syms.lo targets.lo hash.lo linker.lo srec.lo \
+	binary.lo tekhex.lo ihex.lo stabs.lo stab-syms.lo merge.lo \
+	dwarf2.lo bfdio.lo simple.lo
+am_libbfd_la_OBJECTS = $(am__objects_5) $(am__objects_6)
+libbfd_la_OBJECTS = $(am_libbfd_la_OBJECTS)
+libbfd_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(libbfd_la_LDFLAGS) $(LDFLAGS) -o $@
+DEFAULT_INCLUDES = -I. at am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(libbfd_la_SOURCES)
+DIST_SOURCES = $(am__libbfd_la_SOURCES_DIST)
+RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
+	html-recursive info-recursive install-data-recursive \
+	install-dvi-recursive install-exec-recursive \
+	install-html-recursive install-info-recursive \
+	install-pdf-recursive install-ps-recursive install-recursive \
+	installcheck-recursive installdirs-recursive pdf-recursive \
+	ps-recursive uninstall-recursive
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+ETAGS = etags
+CTAGS = ctags
+DIST_SUBDIRS = $(SUBDIRS)
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AR = @AR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BASE_DEPENDENCIES_CFLAGS = @BASE_DEPENDENCIES_CFLAGS@
+BASE_DEPENDENCIES_LIBS = @BASE_DEPENDENCIES_LIBS@
+BUILD_EXEEXT = @BUILD_EXEEXT@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CC_FOR_BUILD = @CC_FOR_BUILD@
+CECIL_ASM = @CECIL_ASM@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+GACUTIL = @GACUTIL@
+GACUTIL_FLAGS = @GACUTIL_FLAGS@
+GREP = @GREP@
+HOST_CC = @HOST_CC@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LD_LIBRARY_PATH = @LD_LIBRARY_PATH@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_PREFIX = @LIB_PREFIX@
+LIB_SUFFIX = @LIB_SUFFIX@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+MAINT = @MAINT@
+MAKEINFO = @MAKEINFO@
+MCS = @MCS@
+MKDIR_P = @MKDIR_P@
+MONO = @MONO@
+MONODIS = @MONODIS@
+NM = @NM@
+NMEDIT = @NMEDIT@
+NUNIT_CONSOLE = @NUNIT_CONSOLE@
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+OTOOL64 = @OTOOL64@
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+SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
+SET_MAKE = @SET_MAKE@
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+TARGET_MONO = @TARGET_MONO@
+TARGET_MONODIS = @TARGET_MONODIS@
+VERSION = @VERSION@
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+WRAPPER_LIBS = @WRAPPER_LIBS@
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+lt_ECHO = @lt_ECHO@
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+mkdir_p = @mkdir_p@
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+monodoc_prefix = @monodoc_prefix@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+real_top_srcdir = @real_top_srcdir@
+sbindir = @sbindir@
+server_cflags = @server_cflags@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target = @target@
+target_alias = @target_alias@
+target_cpu = @target_cpu@
+target_mono_prefix = @target_mono_prefix@
+target_os = @target_os@
+target_vendor = @target_vendor@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+SUBDIRS = include hosts libiberty opcodes
+INCDIR = $(srcdir)/include
+CSEARCH = -I. -I$(srcdir) -I$(INCDIR)
+noinst_LTLIBRARIES = libbfd.la
+AM_CFLAGS = $(WARN_CFLAGS)
+powerpc_backend = mach-o.c pef.c rs6000-core.c xsym.c cpu-rs6000.c cpu-powerpc.c
+powerpc_vec_defines = -DHAVE_mach_o_be_vec -DHAVE_mach_o_le_vec -DHAVE_mach_o_fat_vec -DHAVE_pef_vec -DHAVE_pef_xlib_vec -DHAVE_sym_vec
+i386_linux_backend = elf32-i386.c elf32.c elf.c elflink.c elf-strtab.c elf-eh-frame.c dwarf1.c i386linux.c aout32.c efi-app-ia32.c peigen.c cofflink.c elf32-gen.c cpu-i386.c pe-i386.c pei-i386.c trad-core.c
+i386_linux_vec_defines = -DHAVE_bfd_elf32_i386_vec -DHAVE_i386linux_vec -DHAVE_bfd_efi_app_ia32_vec -DHAVE_bfd_elf32_little_generic_vec -DHAVE_bfd_elf32_big_generic_vec -DHAVE_i386pe_vec -DHAVE_i386pei_vec
+x86_64_linux_backend = elf64-x86-64.c elf64.c elf32-i386.c elf32.c elf.c elflink.c elf-strtab.c elf-eh-frame.c dwarf1.c i386linux.c aout32.c efi-app-ia32.c peigen.c cofflink.c elf64-gen.c elf32-gen.c cpu-i386.c pe-i386.c pei-i386.c trad-core.c archive64.c
+x86_64_linux_vec_defines = -DHAVE_bfd_elf64_x86_64_vec -DHAVE_bfd_elf32_i386_vec -DHAVE_i386linux_vec -DHAVE_bfd_efi_app_ia32_vec -DHAVE_bfd_elf64_little_generic_vec -DHAVE_bfd_elf64_big_generic_vec -DHAVE_bfd_elf32_little_generic_vec -DHAVE_bfd_elf32_big_generic_vec
+i386_mach_backend = mach-o.c pef.c xsym.c cpu-i386.c
+i386_mach_vec_defines = -DHAVE_mach_o_be_vec -DHAVE_mach_o_le_vec -DHAVE_mach_o_fat_vec -DHAVE_pef_vec -DHAVE_pef_xlib_vec -DHAVE_sym_vec
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_FALSE at BFD_BACKEND = $(i386_linux_backend)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_TRUE at BFD_BACKEND = $(i386_mach_backend)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_TRUE at BFD_BACKEND = $(x86_64_linux_backend)
+ at BFD_TARGET_POWERPC_TRUE@BFD_BACKEND = $(powerpc_backend) $(i386_linux_backend)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_FALSE at TDEFAULTS = -DDEFAULT_VECTOR=bfd_elf32_i386_vec -DSELECT_VECS='&bfd_elf32_i386_vec,&i386linux_vec,&bfd_efi_app_ia32_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec,&i386pe_vec,&i386pei_vec' -DSELECT_ARCHITECTURES='&bfd_i386_arch' $(i386_linux_vec_defines)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_TRUE at TDEFAULTS = -DDEFAULT_VECTOR=mach_o_be_vec -DSELECT_VECS='&mach_o_be_vec,&mach_o_le_vec,&mach_o_fat_vec,&pef_vec,&pef_xlib_vec,&sym_vec' -DSELECT_ARCHITECTURES='&bfd_i386_arch' $(i386_mach_vec_defines)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_TRUE at TDEFAULTS = -DDEFAULT_VECTOR=bfd_elf64_x86_64_vec -DSELECT_VECS='&bfd_elf64_x86_64_vec,&bfd_elf32_i386_vec,&i386linux_vec,&bfd_efi_app_ia32_vec,&bfd_elf64_little_generic_vec,&bfd_elf64_big_generic_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec' -DSELECT_ARCHITECTURES='&bfd_i386_arch' $(x86_64_linux_vec_defines)
+ at BFD_TARGET_POWERPC_TRUE@TDEFAULTS = -DDEFAULT_VECTOR=mach_o_be_vec -DSELECT_VECS='&mach_o_be_vec,&mach_o_le_vec,&mach_o_fat_vec,&pef_vec,&pef_xlib_vec,&sym_vec,&bfd_elf32_i386_vec,&i386linux_vec,&bfd_efi_app_ia32_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec,&i386pe_vec,&i386pei_vec' -DSELECT_ARCHITECTURES='&bfd_powerpc_arch,&bfd_rs6000_arch,&bfd_i386_arch' $(powerpc_vec_defines) $(i386_linux_vec_defines)
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_FALSE at bfd_cflags = -DTRAD_CORE
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_TRUE at bfd_cflags = 
+ at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_TRUE at bfd_cflags = -DTRAD_CORE -DBFD64
+ at BFD_TARGET_POWERPC_TRUE@bfd_cflags = 
+INCLUDES = -D_GNU_SOURCE $(bfd_cflags) $(CSEARCH) $(CSWITCHES)
+SOURCE_FILES = \
+	archive.c archures.c bfd.c cache.c coffgen.c corefile.c \
+	format.c init.c libbfd.c opncls.c reloc.c \
+	section.c syms.c targets.c hash.c linker.c \
+	srec.c binary.c tekhex.c ihex.c stabs.c stab-syms.c \
+	merge.c dwarf2.c bfdio.c simple.c
+
+libbfd_la_SOURCES = $(BFD_BACKEND) $(SOURCE_FILES)
+libbfd_la_LDFLAGS = -export-dynamic
+libbfd_la_LIBADD = libiberty/libiberty.la
+EXTRA_DIST = coff-i386.c peigen.c aout-target.h aoutx.h bfd.h bfd-in2.h bfd-in.h coffcode.h \
+	coffswap.h elf32-target.h elf-bfd.h elfcode.h elfcore.h elflink.h genlink.h libaout.h \
+	libbfd.h libbfd-in.h libcoff.h libcoff-in.h libecoff.h libpei.h peicode.h sysdep.h \
+	targmatch.h version.h bfdver.h elf64-target.h
+
+all: all-recursive
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu  backend/os/bfd/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu  backend/os/bfd/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libbfd.la: $(libbfd_la_OBJECTS) $(libbfd_la_DEPENDENCIES) 
+	$(libbfd_la_LINK)  $(libbfd_la_OBJECTS) $(libbfd_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/aout32.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/archive.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/archive64.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/archures.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/bfd.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/bfdio.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/binary.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/cache.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/coffgen.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/cofflink.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/corefile.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/cpu-i386.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/cpu-powerpc.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/cpu-rs6000.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/dwarf1.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/dwarf2.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/efi-app-ia32.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf-eh-frame.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf-strtab.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf32-gen.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf32-i386.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf32.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf64-gen.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf64-x86-64.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elf64.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/elflink.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/format.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/hash.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/i386linux.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/ihex.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/init.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/libbfd.Plo at am__quote@
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+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/merge.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/opncls.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/pe-i386.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/pef.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/pei-i386.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/peigen.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/reloc.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/rs6000-core.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/section.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/simple.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/srec.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/stab-syms.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/stabs.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/syms.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/targets.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/tekhex.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/trad-core.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/xsym.Plo at am__quote@
+
+.c.o:
+ at am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+
+.c.obj:
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+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
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+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+ at am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run `make' without going through this Makefile.
+# To change the values of `make' variables: instead of editing Makefiles,
+# (1) if the variable is set in `config.status', edit `config.status'
+#     (which will cause the Makefiles to be regenerated when you run `make');
+# (2) otherwise, pass the desired values on the `make' command line.
+$(RECURSIVE_TARGETS):
+	@failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
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+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
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+
+$(RECURSIVE_CLEAN_TARGETS):
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+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	rev=''; for subdir in $$list; do \
+	  if test "$$subdir" = "."; then :; else \
+	    rev="$$subdir $$rev"; \
+	  fi; \
+	done; \
+	rev="$$rev ."; \
+	target=`echo $@ | sed s/-recursive//`; \
+	for subdir in $$rev; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done && test -z "$$fail"
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+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
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+	mkid -fID $$unique
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+
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+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
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+	    test ! -f $$subdir/TAGS || \
+	      tags="$$tags $$include_option=$$here/$$subdir/TAGS"; \
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+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
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+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
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+	    $$tags $$unique; \
+	fi
+ctags: CTAGS
+CTAGS: ctags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
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+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
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+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
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+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
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+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$top_distdir" \
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+		am__remove_distdir=: \
+		am__skip_length_check=: \
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+	      || exit 1; \
+	  fi; \
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+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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+	@echo "it deletes files that may require special tools to rebuild."
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+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
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diff --git a/sysdeps/bfd/aout-target.h b/backend/os/bfd/aout-target.h
similarity index 100%
rename from sysdeps/bfd/aout-target.h
rename to backend/os/bfd/aout-target.h
diff --git a/sysdeps/bfd/aout32.c b/backend/os/bfd/aout32.c
similarity index 100%
rename from sysdeps/bfd/aout32.c
rename to backend/os/bfd/aout32.c
diff --git a/sysdeps/bfd/aoutx.h b/backend/os/bfd/aoutx.h
similarity index 100%
rename from sysdeps/bfd/aoutx.h
rename to backend/os/bfd/aoutx.h
diff --git a/sysdeps/bfd/archive.c b/backend/os/bfd/archive.c
similarity index 100%
rename from sysdeps/bfd/archive.c
rename to backend/os/bfd/archive.c
diff --git a/sysdeps/bfd/archive64.c b/backend/os/bfd/archive64.c
similarity index 100%
rename from sysdeps/bfd/archive64.c
rename to backend/os/bfd/archive64.c
diff --git a/sysdeps/bfd/archures.c b/backend/os/bfd/archures.c
similarity index 100%
rename from sysdeps/bfd/archures.c
rename to backend/os/bfd/archures.c
diff --git a/sysdeps/bfd/bfd-in.h b/backend/os/bfd/bfd-in.h
similarity index 100%
rename from sysdeps/bfd/bfd-in.h
rename to backend/os/bfd/bfd-in.h
diff --git a/sysdeps/bfd/bfd-in2.h b/backend/os/bfd/bfd-in2.h
similarity index 100%
rename from sysdeps/bfd/bfd-in2.h
rename to backend/os/bfd/bfd-in2.h
diff --git a/sysdeps/bfd/bfd.c b/backend/os/bfd/bfd.c
similarity index 100%
rename from sysdeps/bfd/bfd.c
rename to backend/os/bfd/bfd.c
diff --git a/sysdeps/bfd/bfd.h b/backend/os/bfd/bfd.h
similarity index 100%
rename from sysdeps/bfd/bfd.h
rename to backend/os/bfd/bfd.h
diff --git a/sysdeps/bfd/bfdio.c b/backend/os/bfd/bfdio.c
similarity index 100%
rename from sysdeps/bfd/bfdio.c
rename to backend/os/bfd/bfdio.c
diff --git a/sysdeps/bfd/bfdver.h b/backend/os/bfd/bfdver.h
similarity index 100%
rename from sysdeps/bfd/bfdver.h
rename to backend/os/bfd/bfdver.h
diff --git a/sysdeps/bfd/binary.c b/backend/os/bfd/binary.c
similarity index 100%
rename from sysdeps/bfd/binary.c
rename to backend/os/bfd/binary.c
diff --git a/sysdeps/bfd/cache.c b/backend/os/bfd/cache.c
similarity index 100%
rename from sysdeps/bfd/cache.c
rename to backend/os/bfd/cache.c
diff --git a/sysdeps/bfd/coff-i386.c b/backend/os/bfd/coff-i386.c
similarity index 100%
rename from sysdeps/bfd/coff-i386.c
rename to backend/os/bfd/coff-i386.c
diff --git a/sysdeps/bfd/coffcode.h b/backend/os/bfd/coffcode.h
similarity index 100%
rename from sysdeps/bfd/coffcode.h
rename to backend/os/bfd/coffcode.h
diff --git a/sysdeps/bfd/coffgen.c b/backend/os/bfd/coffgen.c
similarity index 100%
rename from sysdeps/bfd/coffgen.c
rename to backend/os/bfd/coffgen.c
diff --git a/sysdeps/bfd/cofflink.c b/backend/os/bfd/cofflink.c
similarity index 100%
rename from sysdeps/bfd/cofflink.c
rename to backend/os/bfd/cofflink.c
diff --git a/sysdeps/bfd/coffswap.h b/backend/os/bfd/coffswap.h
similarity index 100%
rename from sysdeps/bfd/coffswap.h
rename to backend/os/bfd/coffswap.h
diff --git a/sysdeps/bfd/corefile.c b/backend/os/bfd/corefile.c
similarity index 100%
rename from sysdeps/bfd/corefile.c
rename to backend/os/bfd/corefile.c
diff --git a/sysdeps/bfd/cpu-i386.c b/backend/os/bfd/cpu-i386.c
similarity index 100%
rename from sysdeps/bfd/cpu-i386.c
rename to backend/os/bfd/cpu-i386.c
diff --git a/sysdeps/bfd/cpu-powerpc.c b/backend/os/bfd/cpu-powerpc.c
similarity index 100%
rename from sysdeps/bfd/cpu-powerpc.c
rename to backend/os/bfd/cpu-powerpc.c
diff --git a/sysdeps/bfd/cpu-rs6000.c b/backend/os/bfd/cpu-rs6000.c
similarity index 100%
rename from sysdeps/bfd/cpu-rs6000.c
rename to backend/os/bfd/cpu-rs6000.c
diff --git a/sysdeps/bfd/dwarf1.c b/backend/os/bfd/dwarf1.c
similarity index 100%
rename from sysdeps/bfd/dwarf1.c
rename to backend/os/bfd/dwarf1.c
diff --git a/sysdeps/bfd/dwarf2.c b/backend/os/bfd/dwarf2.c
similarity index 100%
rename from sysdeps/bfd/dwarf2.c
rename to backend/os/bfd/dwarf2.c
diff --git a/sysdeps/bfd/efi-app-ia32.c b/backend/os/bfd/efi-app-ia32.c
similarity index 100%
rename from sysdeps/bfd/efi-app-ia32.c
rename to backend/os/bfd/efi-app-ia32.c
diff --git a/sysdeps/bfd/elf-bfd.h b/backend/os/bfd/elf-bfd.h
similarity index 100%
rename from sysdeps/bfd/elf-bfd.h
rename to backend/os/bfd/elf-bfd.h
diff --git a/sysdeps/bfd/elf-eh-frame.c b/backend/os/bfd/elf-eh-frame.c
similarity index 100%
rename from sysdeps/bfd/elf-eh-frame.c
rename to backend/os/bfd/elf-eh-frame.c
diff --git a/sysdeps/bfd/elf-strtab.c b/backend/os/bfd/elf-strtab.c
similarity index 100%
rename from sysdeps/bfd/elf-strtab.c
rename to backend/os/bfd/elf-strtab.c
diff --git a/sysdeps/bfd/elf.c b/backend/os/bfd/elf.c
similarity index 100%
rename from sysdeps/bfd/elf.c
rename to backend/os/bfd/elf.c
diff --git a/sysdeps/bfd/elf32-gen.c b/backend/os/bfd/elf32-gen.c
similarity index 100%
rename from sysdeps/bfd/elf32-gen.c
rename to backend/os/bfd/elf32-gen.c
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similarity index 100%
rename from sysdeps/bfd/elf32-i386.c
rename to backend/os/bfd/elf32-i386.c
diff --git a/sysdeps/bfd/elf32-target.h b/backend/os/bfd/elf32-target.h
similarity index 100%
rename from sysdeps/bfd/elf32-target.h
rename to backend/os/bfd/elf32-target.h
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similarity index 100%
rename from sysdeps/bfd/elf32.c
rename to backend/os/bfd/elf32.c
diff --git a/sysdeps/bfd/elf64-gen.c b/backend/os/bfd/elf64-gen.c
similarity index 100%
rename from sysdeps/bfd/elf64-gen.c
rename to backend/os/bfd/elf64-gen.c
diff --git a/sysdeps/bfd/elf64-target.h b/backend/os/bfd/elf64-target.h
similarity index 100%
rename from sysdeps/bfd/elf64-target.h
rename to backend/os/bfd/elf64-target.h
diff --git a/sysdeps/bfd/elf64-x86-64.c b/backend/os/bfd/elf64-x86-64.c
similarity index 100%
rename from sysdeps/bfd/elf64-x86-64.c
rename to backend/os/bfd/elf64-x86-64.c
diff --git a/sysdeps/bfd/elf64.c b/backend/os/bfd/elf64.c
similarity index 100%
rename from sysdeps/bfd/elf64.c
rename to backend/os/bfd/elf64.c
diff --git a/sysdeps/bfd/elfcode.h b/backend/os/bfd/elfcode.h
similarity index 100%
rename from sysdeps/bfd/elfcode.h
rename to backend/os/bfd/elfcode.h
diff --git a/sysdeps/bfd/elfcore.h b/backend/os/bfd/elfcore.h
similarity index 100%
rename from sysdeps/bfd/elfcore.h
rename to backend/os/bfd/elfcore.h
diff --git a/sysdeps/bfd/elflink.c b/backend/os/bfd/elflink.c
similarity index 100%
rename from sysdeps/bfd/elflink.c
rename to backend/os/bfd/elflink.c
diff --git a/sysdeps/bfd/elflink.h b/backend/os/bfd/elflink.h
similarity index 100%
rename from sysdeps/bfd/elflink.h
rename to backend/os/bfd/elflink.h
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similarity index 100%
rename from sysdeps/bfd/format.c
rename to backend/os/bfd/format.c
diff --git a/sysdeps/bfd/genlink.h b/backend/os/bfd/genlink.h
similarity index 100%
rename from sysdeps/bfd/genlink.h
rename to backend/os/bfd/genlink.h
diff --git a/sysdeps/bfd/hash.c b/backend/os/bfd/hash.c
similarity index 100%
rename from sysdeps/bfd/hash.c
rename to backend/os/bfd/hash.c
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similarity index 100%
rename from sysdeps/bfd/hosts/Makefile.am
rename to backend/os/bfd/hosts/Makefile.am
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new file mode 100644
index 0000000..bc15845
--- /dev/null
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similarity index 100%
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rename to backend/os/bfd/i386linux.c
diff --git a/sysdeps/bfd/ihex.c b/backend/os/bfd/ihex.c
similarity index 100%
rename from sysdeps/bfd/ihex.c
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similarity index 100%
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similarity index 100%
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rename to backend/os/bfd/include/aout/aout64.h
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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new file mode 100644
index 0000000..a8635ef
--- /dev/null
+++ b/backend/os/bfd/include/coff/Makefile.in
@@ -0,0 +1,368 @@
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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new file mode 100644
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diff --git a/sysdeps/bfd/libcoff.h b/backend/os/bfd/libcoff.h
similarity index 100%
rename from sysdeps/bfd/libcoff.h
rename to backend/os/bfd/libcoff.h
diff --git a/sysdeps/bfd/libecoff.h b/backend/os/bfd/libecoff.h
similarity index 100%
rename from sysdeps/bfd/libecoff.h
rename to backend/os/bfd/libecoff.h
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similarity index 100%
rename from sysdeps/bfd/libiberty/Makefile.am
rename to backend/os/bfd/libiberty/Makefile.am
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new file mode 100644
index 0000000..2a1dc9a
--- /dev/null
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diff --git a/sysdeps/bfd/libiberty/basename.c b/backend/os/bfd/libiberty/basename.c
similarity index 100%
rename from sysdeps/bfd/libiberty/basename.c
rename to backend/os/bfd/libiberty/basename.c
diff --git a/sysdeps/bfd/libiberty/concat.c b/backend/os/bfd/libiberty/concat.c
similarity index 100%
rename from sysdeps/bfd/libiberty/concat.c
rename to backend/os/bfd/libiberty/concat.c
diff --git a/sysdeps/bfd/libiberty/fnmatch.c b/backend/os/bfd/libiberty/fnmatch.c
similarity index 100%
rename from sysdeps/bfd/libiberty/fnmatch.c
rename to backend/os/bfd/libiberty/fnmatch.c
diff --git a/sysdeps/bfd/libiberty/hashtab.c b/backend/os/bfd/libiberty/hashtab.c
similarity index 100%
rename from sysdeps/bfd/libiberty/hashtab.c
rename to backend/os/bfd/libiberty/hashtab.c
diff --git a/sysdeps/bfd/libiberty/hex.c b/backend/os/bfd/libiberty/hex.c
similarity index 100%
rename from sysdeps/bfd/libiberty/hex.c
rename to backend/os/bfd/libiberty/hex.c
diff --git a/sysdeps/bfd/libiberty/objalloc.c b/backend/os/bfd/libiberty/objalloc.c
similarity index 100%
rename from sysdeps/bfd/libiberty/objalloc.c
rename to backend/os/bfd/libiberty/objalloc.c
diff --git a/sysdeps/bfd/libiberty/safe-ctype.c b/backend/os/bfd/libiberty/safe-ctype.c
similarity index 100%
rename from sysdeps/bfd/libiberty/safe-ctype.c
rename to backend/os/bfd/libiberty/safe-ctype.c
diff --git a/sysdeps/bfd/libiberty/xexit.c b/backend/os/bfd/libiberty/xexit.c
similarity index 100%
rename from sysdeps/bfd/libiberty/xexit.c
rename to backend/os/bfd/libiberty/xexit.c
diff --git a/sysdeps/bfd/libiberty/xmalloc.c b/backend/os/bfd/libiberty/xmalloc.c
similarity index 100%
rename from sysdeps/bfd/libiberty/xmalloc.c
rename to backend/os/bfd/libiberty/xmalloc.c
diff --git a/sysdeps/bfd/libiberty/xstrdup.c b/backend/os/bfd/libiberty/xstrdup.c
similarity index 100%
rename from sysdeps/bfd/libiberty/xstrdup.c
rename to backend/os/bfd/libiberty/xstrdup.c
diff --git a/sysdeps/bfd/libiberty/xstrerror.c b/backend/os/bfd/libiberty/xstrerror.c
similarity index 100%
rename from sysdeps/bfd/libiberty/xstrerror.c
rename to backend/os/bfd/libiberty/xstrerror.c
diff --git a/sysdeps/bfd/libpei.h b/backend/os/bfd/libpei.h
similarity index 100%
rename from sysdeps/bfd/libpei.h
rename to backend/os/bfd/libpei.h
diff --git a/sysdeps/bfd/linker.c b/backend/os/bfd/linker.c
similarity index 100%
rename from sysdeps/bfd/linker.c
rename to backend/os/bfd/linker.c
diff --git a/sysdeps/bfd/mach-o.c b/backend/os/bfd/mach-o.c
similarity index 100%
rename from sysdeps/bfd/mach-o.c
rename to backend/os/bfd/mach-o.c
diff --git a/sysdeps/bfd/merge.c b/backend/os/bfd/merge.c
similarity index 100%
rename from sysdeps/bfd/merge.c
rename to backend/os/bfd/merge.c
diff --git a/sysdeps/bfd/opcodes/Makefile.am b/backend/os/bfd/opcodes/Makefile.am
similarity index 100%
rename from sysdeps/bfd/opcodes/Makefile.am
rename to backend/os/bfd/opcodes/Makefile.am
diff --git a/backend/os/bfd/opcodes/Makefile.in b/backend/os/bfd/opcodes/Makefile.in
new file mode 100644
index 0000000..da53401
--- /dev/null
+++ b/backend/os/bfd/opcodes/Makefile.in
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+# gives unlimited permission to copy and/or distribute it,
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+# This program is distributed in the hope that it will be useful,
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+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-info: install-info-am
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags uninstall uninstall-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/sysdeps/bfd/opcodes/dis-buf.c b/backend/os/bfd/opcodes/dis-buf.c
similarity index 100%
rename from sysdeps/bfd/opcodes/dis-buf.c
rename to backend/os/bfd/opcodes/dis-buf.c
diff --git a/sysdeps/bfd/opcodes/disassemble.c b/backend/os/bfd/opcodes/disassemble.c
similarity index 100%
rename from sysdeps/bfd/opcodes/disassemble.c
rename to backend/os/bfd/opcodes/disassemble.c
diff --git a/sysdeps/bfd/opcodes/i386-dis.c b/backend/os/bfd/opcodes/i386-dis.c
similarity index 100%
rename from sysdeps/bfd/opcodes/i386-dis.c
rename to backend/os/bfd/opcodes/i386-dis.c
diff --git a/sysdeps/bfd/opcodes/opintl.h b/backend/os/bfd/opcodes/opintl.h
similarity index 100%
rename from sysdeps/bfd/opcodes/opintl.h
rename to backend/os/bfd/opcodes/opintl.h
diff --git a/sysdeps/bfd/opcodes/ppc-dis.c b/backend/os/bfd/opcodes/ppc-dis.c
similarity index 100%
rename from sysdeps/bfd/opcodes/ppc-dis.c
rename to backend/os/bfd/opcodes/ppc-dis.c
diff --git a/sysdeps/bfd/opcodes/ppc-opc.c b/backend/os/bfd/opcodes/ppc-opc.c
similarity index 100%
rename from sysdeps/bfd/opcodes/ppc-opc.c
rename to backend/os/bfd/opcodes/ppc-opc.c
diff --git a/sysdeps/bfd/opcodes/sysdep.h b/backend/os/bfd/opcodes/sysdep.h
similarity index 100%
rename from sysdeps/bfd/opcodes/sysdep.h
rename to backend/os/bfd/opcodes/sysdep.h
diff --git a/sysdeps/bfd/opncls.c b/backend/os/bfd/opncls.c
similarity index 100%
rename from sysdeps/bfd/opncls.c
rename to backend/os/bfd/opncls.c
diff --git a/sysdeps/bfd/pe-i386.c b/backend/os/bfd/pe-i386.c
similarity index 100%
rename from sysdeps/bfd/pe-i386.c
rename to backend/os/bfd/pe-i386.c
diff --git a/sysdeps/bfd/pef.c b/backend/os/bfd/pef.c
similarity index 100%
rename from sysdeps/bfd/pef.c
rename to backend/os/bfd/pef.c
diff --git a/sysdeps/bfd/pei-i386.c b/backend/os/bfd/pei-i386.c
similarity index 100%
rename from sysdeps/bfd/pei-i386.c
rename to backend/os/bfd/pei-i386.c
diff --git a/sysdeps/bfd/peicode.h b/backend/os/bfd/peicode.h
similarity index 100%
rename from sysdeps/bfd/peicode.h
rename to backend/os/bfd/peicode.h
diff --git a/sysdeps/bfd/peigen.c b/backend/os/bfd/peigen.c
similarity index 100%
rename from sysdeps/bfd/peigen.c
rename to backend/os/bfd/peigen.c
diff --git a/sysdeps/bfd/reloc.c b/backend/os/bfd/reloc.c
similarity index 100%
rename from sysdeps/bfd/reloc.c
rename to backend/os/bfd/reloc.c
diff --git a/sysdeps/bfd/rs6000-core.c b/backend/os/bfd/rs6000-core.c
similarity index 100%
rename from sysdeps/bfd/rs6000-core.c
rename to backend/os/bfd/rs6000-core.c
diff --git a/sysdeps/bfd/section.c b/backend/os/bfd/section.c
similarity index 100%
rename from sysdeps/bfd/section.c
rename to backend/os/bfd/section.c
diff --git a/sysdeps/bfd/simple.c b/backend/os/bfd/simple.c
similarity index 100%
rename from sysdeps/bfd/simple.c
rename to backend/os/bfd/simple.c
diff --git a/sysdeps/bfd/srec.c b/backend/os/bfd/srec.c
similarity index 100%
rename from sysdeps/bfd/srec.c
rename to backend/os/bfd/srec.c
diff --git a/sysdeps/bfd/stab-syms.c b/backend/os/bfd/stab-syms.c
similarity index 100%
rename from sysdeps/bfd/stab-syms.c
rename to backend/os/bfd/stab-syms.c
diff --git a/sysdeps/bfd/stabs.c b/backend/os/bfd/stabs.c
similarity index 100%
rename from sysdeps/bfd/stabs.c
rename to backend/os/bfd/stabs.c
diff --git a/sysdeps/bfd/syms.c b/backend/os/bfd/syms.c
similarity index 100%
rename from sysdeps/bfd/syms.c
rename to backend/os/bfd/syms.c
diff --git a/sysdeps/bfd/sysdep.h b/backend/os/bfd/sysdep.h
similarity index 100%
rename from sysdeps/bfd/sysdep.h
rename to backend/os/bfd/sysdep.h
diff --git a/sysdeps/bfd/targets.c b/backend/os/bfd/targets.c
similarity index 100%
rename from sysdeps/bfd/targets.c
rename to backend/os/bfd/targets.c
diff --git a/sysdeps/bfd/targmatch.h b/backend/os/bfd/targmatch.h
similarity index 100%
rename from sysdeps/bfd/targmatch.h
rename to backend/os/bfd/targmatch.h
diff --git a/sysdeps/bfd/tekhex.c b/backend/os/bfd/tekhex.c
similarity index 100%
rename from sysdeps/bfd/tekhex.c
rename to backend/os/bfd/tekhex.c
diff --git a/sysdeps/bfd/trad-core.c b/backend/os/bfd/trad-core.c
similarity index 100%
rename from sysdeps/bfd/trad-core.c
rename to backend/os/bfd/trad-core.c
diff --git a/sysdeps/bfd/version.h b/backend/os/bfd/version.h
similarity index 100%
rename from sysdeps/bfd/version.h
rename to backend/os/bfd/version.h
diff --git a/sysdeps/bfd/xsym.c b/backend/os/bfd/xsym.c
similarity index 100%
rename from sysdeps/bfd/xsym.c
rename to backend/os/bfd/xsym.c
diff --git a/sysdeps/server/bfdglue.c b/backend/os/bfdglue.c
similarity index 100%
rename from sysdeps/server/bfdglue.c
rename to backend/os/bfdglue.c
diff --git a/sysdeps/server/bfdglue.h b/backend/os/bfdglue.h
similarity index 100%
rename from sysdeps/server/bfdglue.h
rename to backend/os/bfdglue.h
diff --git a/backend/server/Makefile.am b/backend/server/Makefile.am
new file mode 100644
index 0000000..4674ddd
--- /dev/null
+++ b/backend/server/Makefile.am
@@ -0,0 +1,53 @@
+INCLUDES = @SERVER_DEPENDENCIES_CFLAGS@ @server_cflags@
+
+lib_LTLIBRARIES = libmonodebuggerserver.la
+
+EXTRA_libmonodebuggerserver_la_SOURCES = \
+	i386-arch.c			\
+	i386-arch.h			\
+	x86-arch.h			\
+	x86_64-arch.h			\
+	x86_64-arch.c			\
+	x86-linux-ptrace.c		\
+	x86-linux-ptrace.h		\
+	x86-ptrace.c			\
+	x86-ptrace.h
+
+if PLATFORM_POWERPC
+platform_sources =
+else
+if PLATFORM_X86_DARWIN
+platform_sources = \
+	x86-ptrace.c \
+	darwin-thread-db.c \
+	thread-db.h
+libmonodebuggerserver_la_LIBADD = \
+	@SERVER_DEPENDENCIES_LIBS@ \
+	../os/libmonodebuggerbfdglue.la
+else
+platform_sources = \
+	x86-ptrace.c \
+	thread-db.c	\
+	thread-db.h
+libmonodebuggerserver_la_LIBADD = \
+	@SERVER_DEPENDENCIES_LIBS@ -lthread_db \
+	../os/libmonodebuggerbfdglue.la
+endif
+endif
+
+libmonodebuggerserver_la_SOURCES = \
+	server.h		\
+	library.c		\
+	$(platform_sources)	\
+	breakpoints.c		\
+	breakpoints.h		\
+	mutex.c			\
+	mutex.h			\
+	libgtop-glue.c		\
+	libgtop-glue.h		\
+	linux-proc-service.h
+
+libmonodebuggerserver_la_LDFLAGS = \
+	 -no-undefined -export-dynamic -shared
+
+CLEANFILES = lib*.a lib*.dll
diff --git a/backend/server/Makefile.in b/backend/server/Makefile.in
new file mode 100644
index 0000000..35a6879
--- /dev/null
+++ b/backend/server/Makefile.in
@@ -0,0 +1,579 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+ at SET_MAKE@
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+target_triplet = @target@
+subdir = backend/server
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
+	$(top_srcdir)/configure.in
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(libdir)"
+libLTLIBRARIES_INSTALL = $(INSTALL)
+LTLIBRARIES = $(lib_LTLIBRARIES)
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE at libmonodebuggerserver_la_DEPENDENCIES = ../os/libmonodebuggerbfdglue.la
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE at libmonodebuggerserver_la_DEPENDENCIES = ../os/libmonodebuggerbfdglue.la
+am__libmonodebuggerserver_la_SOURCES_DIST = server.h library.c \
+	x86-ptrace.c thread-db.c thread-db.h darwin-thread-db.c \
+	breakpoints.c breakpoints.h mutex.c mutex.h libgtop-glue.c \
+	libgtop-glue.h linux-proc-service.h
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE at am__objects_1 = x86-ptrace.lo \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE@	thread-db.lo
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE at am__objects_1 = x86-ptrace.lo \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE@	darwin-thread-db.lo
+am_libmonodebuggerserver_la_OBJECTS = library.lo $(am__objects_1) \
+	breakpoints.lo mutex.lo libgtop-glue.lo
+libmonodebuggerserver_la_OBJECTS =  \
+	$(am_libmonodebuggerserver_la_OBJECTS)
+libmonodebuggerserver_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(libmonodebuggerserver_la_LDFLAGS) $(LDFLAGS) -o $@
+DEFAULT_INCLUDES = -I. at am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(libmonodebuggerserver_la_SOURCES) \
+	$(EXTRA_libmonodebuggerserver_la_SOURCES)
+DIST_SOURCES = $(am__libmonodebuggerserver_la_SOURCES_DIST) \
+	$(EXTRA_libmonodebuggerserver_la_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AR = @AR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BASE_DEPENDENCIES_CFLAGS = @BASE_DEPENDENCIES_CFLAGS@
+BASE_DEPENDENCIES_LIBS = @BASE_DEPENDENCIES_LIBS@
+BUILD_EXEEXT = @BUILD_EXEEXT@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CC_FOR_BUILD = @CC_FOR_BUILD@
+CECIL_ASM = @CECIL_ASM@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
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+FGREP = @FGREP@
+GACUTIL = @GACUTIL@
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+HOST_CC = @HOST_CC@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LD_LIBRARY_PATH = @LD_LIBRARY_PATH@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_PREFIX = @LIB_PREFIX@
+LIB_SUFFIX = @LIB_SUFFIX@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+MAINT = @MAINT@
+MAKEINFO = @MAKEINFO@
+MCS = @MCS@
+MKDIR_P = @MKDIR_P@
+MONO = @MONO@
+MONODIS = @MONODIS@
+NM = @NM@
+NMEDIT = @NMEDIT@
+NUNIT_CONSOLE = @NUNIT_CONSOLE@
+NUNIT_PREFIX = @NUNIT_PREFIX@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH = @PATH@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PKG_CONFIG = @PKG_CONFIG@
+RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
+SED = @SED@
+SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
+SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+TARGET_MCS = @TARGET_MCS@
+TARGET_MONO = @TARGET_MONO@
+TARGET_MONODIS = @TARGET_MONODIS@
+VERSION = @VERSION@
+WARN_CFLAGS = @WARN_CFLAGS@
+WRAPPER_CFLAGS = @WRAPPER_CFLAGS@
+WRAPPER_LIBS = @WRAPPER_LIBS@
+XSP_CFLAGS = @XSP_CFLAGS@
+XSP_EXE = @XSP_EXE@
+XSP_LIBS = @XSP_LIBS@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+glue_cflags = @glue_cflags@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+lt_ECHO = @lt_ECHO@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+mono_prefix = @mono_prefix@
+monodoc_prefix = @monodoc_prefix@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+real_top_srcdir = @real_top_srcdir@
+sbindir = @sbindir@
+server_cflags = @server_cflags@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target = @target@
+target_alias = @target_alias@
+target_cpu = @target_cpu@
+target_mono_prefix = @target_mono_prefix@
+target_os = @target_os@
+target_vendor = @target_vendor@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+INCLUDES = @SERVER_DEPENDENCIES_CFLAGS@ @server_cflags@
+lib_LTLIBRARIES = libmonodebuggerserver.la
+EXTRA_libmonodebuggerserver_la_SOURCES = \
+	i386-arch.c			\
+	i386-arch.h			\
+	x86-arch.h			\
+	x86_64-arch.h			\
+	x86_64-arch.c			\
+	x86-linux-ptrace.c		\
+	x86-linux-ptrace.h		\
+	x86-ptrace.c			\
+	x86-ptrace.h
+
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE at platform_sources = \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE@	x86-ptrace.c \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE@	thread-db.c	\
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE@	thread-db.h
+
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE at platform_sources = \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE@	x86-ptrace.c \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE@	darwin-thread-db.c \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE@	thread-db.h
+
+ at PLATFORM_POWERPC_TRUE@platform_sources = 
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE at libmonodebuggerserver_la_LIBADD = \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE@	@SERVER_DEPENDENCIES_LIBS@ -lthread_db \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_FALSE@	../os/libmonodebuggerbfdglue.la
+
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE at libmonodebuggerserver_la_LIBADD = \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE@	@SERVER_DEPENDENCIES_LIBS@ \
+ at PLATFORM_POWERPC_FALSE@@PLATFORM_X86_DARWIN_TRUE@	../os/libmonodebuggerbfdglue.la
+
+libmonodebuggerserver_la_SOURCES = \
+	server.h		\
+	library.c		\
+	$(platform_sources)	\
+	breakpoints.c		\
+	breakpoints.h		\
+	mutex.c			\
+	mutex.h			\
+	libgtop-glue.c		\
+	libgtop-glue.h		\
+	linux-proc-service.h
+
+libmonodebuggerserver_la_LDFLAGS = \
+	 -no-undefined -export-dynamic -shared
+
+CLEANFILES = lib*.a lib*.dll
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu  backend/server/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu  backend/server/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+install-libLTLIBRARIES: $(lib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	test -z "$(libdir)" || $(MKDIR_P) "$(DESTDIR)$(libdir)"
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  if test -f $$p; then \
+	    f=$(am__strip_dir) \
+	    echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) '$$p' '$(DESTDIR)$(libdir)/$$f'"; \
+	    $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) "$$p" "$(DESTDIR)$(libdir)/$$f"; \
+	  else :; fi; \
+	done
+
+uninstall-libLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  p=$(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(libdir)/$$p'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(libdir)/$$p"; \
+	done
+
+clean-libLTLIBRARIES:
+	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libmonodebuggerserver.la: $(libmonodebuggerserver_la_OBJECTS) $(libmonodebuggerserver_la_DEPENDENCIES) 
+	$(libmonodebuggerserver_la_LINK) -rpath $(libdir) $(libmonodebuggerserver_la_OBJECTS) $(libmonodebuggerserver_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/breakpoints.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/darwin-thread-db.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/i386-arch.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/libgtop-glue.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/library.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/mutex.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/thread-db.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/x86-linux-ptrace.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/x86-ptrace.Plo at am__quote@
+ at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/x86_64-arch.Plo at am__quote@
+
+.c.o:
+ at am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+ at am__fastdepCC_FALSE@	$(COMPILE) -c $<
+
+.c.obj:
+ at am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+ at am__fastdepCC_FALSE@	$(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.c.lo:
+ at am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+ at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+ at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+ at am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	    $$tags $$unique; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-info: install-info-am
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libLTLIBRARIES clean-libtool ctags distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am \
+	install-libLTLIBRARIES install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-libLTLIBRARIES
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/sysdeps/server/breakpoints.c b/backend/server/breakpoints.c
similarity index 100%
rename from sysdeps/server/breakpoints.c
rename to backend/server/breakpoints.c
diff --git a/sysdeps/server/breakpoints.h b/backend/server/breakpoints.h
similarity index 100%
rename from sysdeps/server/breakpoints.h
rename to backend/server/breakpoints.h
diff --git a/sysdeps/server/darwin-thread-db.c b/backend/server/darwin-thread-db.c
similarity index 100%
rename from sysdeps/server/darwin-thread-db.c
rename to backend/server/darwin-thread-db.c
diff --git a/sysdeps/server/i386-arch.c b/backend/server/i386-arch.c
similarity index 100%
rename from sysdeps/server/i386-arch.c
rename to backend/server/i386-arch.c
diff --git a/sysdeps/server/i386-arch.h b/backend/server/i386-arch.h
similarity index 100%
rename from sysdeps/server/i386-arch.h
rename to backend/server/i386-arch.h
diff --git a/sysdeps/server/libgtop-glue.c b/backend/server/libgtop-glue.c
similarity index 100%
rename from sysdeps/server/libgtop-glue.c
rename to backend/server/libgtop-glue.c
diff --git a/sysdeps/server/libgtop-glue.h b/backend/server/libgtop-glue.h
similarity index 100%
rename from sysdeps/server/libgtop-glue.h
rename to backend/server/libgtop-glue.h
diff --git a/backend/server/library.c b/backend/server/library.c
new file mode 100644
index 0000000..ef75b97
--- /dev/null
+++ b/backend/server/library.c
@@ -0,0 +1,554 @@
+#include <config.h>
+#include <server.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if defined(__linux__) || defined(__FreeBSD__)
+#include <sys/poll.h>
+#include <sys/select.h>
+#endif
+#include <errno.h>
+#include <stdio.h>
+
+#if defined(__POWERPC__)
+extern InferiorVTable powerpc_darwin_inferior;
+InferiorVTable *global_vtable = &powerpc_darwin_inferior;
+#elif defined(WIN32)
+extern InferiorVTable i386_windows_inferior;
+static InferiorVTable *global_vtable = &i386_windows_inferior;
+#else
+extern InferiorVTable i386_ptrace_inferior;
+static InferiorVTable *global_vtable = &i386_ptrace_inferior;
+#endif
+
+ServerHandle *
+mono_debugger_server_create_inferior (BreakpointManager *breakpoint_manager)
+{
+	return global_vtable->create_inferior (breakpoint_manager);
+}
+
+guint32
+mono_debugger_server_get_current_pid (void)
+{
+	return global_vtable->get_current_pid ();
+}
+
+guint64
+mono_debugger_server_get_current_thread (void)
+{
+	return global_vtable->get_current_thread ();
+}
+
+ServerCapabilities
+mono_debugger_server_get_capabilities (void)
+{
+	return global_vtable->get_capabilities ();
+}
+
+ServerType
+mono_debugger_server_get_server_type (void)
+{
+	return global_vtable->get_server_type ();
+}
+
+void
+mono_debugger_server_io_thread_main (IOThreadData *io_data, ChildOutputFunc func)
+{
+	(global_vtable->io_thread_main) (io_data, func);
+}
+
+ServerCommandError
+mono_debugger_server_spawn (ServerHandle *handle, const gchar *working_directory,
+			    const gchar **argv, const gchar **envp, gboolean redirect_fds,
+			    gint *child_pid, IOThreadData **io_data, gchar **error)
+{
+	if (!global_vtable->spawn)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->spawn) (handle, working_directory, argv, envp, redirect_fds,
+					 child_pid, io_data, error);
+}
+
+ServerCommandError
+mono_debugger_server_initialize_process (ServerHandle *handle)
+{
+	if (!global_vtable->initialize_process)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->initialize_process) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_initialize_thread (ServerHandle *handle, guint32 pid, gboolean wait)
+{
+	if (!global_vtable->initialize_thread)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->initialize_thread) (handle, pid, wait);
+}
+
+ServerCommandError
+mono_debugger_server_attach (ServerHandle *handle, guint32 pid)
+{
+	if (!global_vtable->attach)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->attach) (handle, pid);
+}
+
+void
+mono_debugger_server_finalize (ServerHandle *handle)
+{
+	(* global_vtable->finalize) (handle);
+}
+
+void
+mono_debugger_server_global_init (void)
+{
+	(* global_vtable->global_init) ();
+}
+
+guint32
+mono_debugger_server_global_wait (guint32 *status)
+{
+	return (* global_vtable->global_wait) (status);
+}
+
+ServerStatusMessageType
+mono_debugger_server_dispatch_event (ServerHandle *handle, guint32 status, guint64 *arg,
+				     guint64 *data1, guint64 *data2, guint32 *opt_data_size,
+				     gpointer *opt_data)
+{
+	return (*global_vtable->dispatch_event) (
+		handle, status, arg, data1, data2, opt_data_size, opt_data);
+}
+
+ServerStatusMessageType
+mono_debugger_server_dispatch_simple (guint32 status, guint32 *arg)
+{
+	return (*global_vtable->dispatch_simple) (status, arg);
+}
+
+ServerCommandError
+mono_debugger_server_get_target_info (guint32 *target_int_size, guint32 *target_long_size,
+				      guint32 *target_address_size, guint32 *is_bigendian)
+{
+	if (!global_vtable->get_target_info)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_target_info) (
+		target_int_size, target_long_size, target_address_size, is_bigendian);
+}
+
+ServerCommandError
+mono_debugger_server_get_frame (ServerHandle *handle, StackFrame *frame)
+{
+	if (!global_vtable->get_frame)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_frame) (handle, frame);
+}
+
+ServerCommandError
+mono_debugger_server_current_insn_is_bpt (ServerHandle *handle, guint32 *is_breakpoint)
+{
+	if (!global_vtable->current_insn_is_bpt)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->current_insn_is_bpt) (handle, is_breakpoint);
+}
+
+ServerCommandError
+mono_debugger_server_step (ServerHandle *handle)
+{
+	if (!global_vtable->step)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->step) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_continue (ServerHandle *handle)
+{
+	if (!global_vtable->run)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->run) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_resume (ServerHandle *handle)
+{
+	if (!global_vtable->resume)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->resume) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_detach (ServerHandle *handle)
+{
+	if (!global_vtable->detach)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->detach) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_peek_word (ServerHandle *handle, guint64 start, guint64 *word)
+{
+	if (!global_vtable->peek_word)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->peek_word) (handle, start, word);
+}
+
+ServerCommandError
+mono_debugger_server_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer data)
+{
+	if (!global_vtable->read_memory)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->read_memory) (handle, start, size, data);
+}
+
+ServerCommandError
+mono_debugger_server_write_memory (ServerHandle *handle, guint64 start, guint32 size, gconstpointer data)
+{
+	if (!global_vtable->write_memory)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->write_memory) (handle, start, size, data);
+}
+
+ServerCommandError
+mono_debugger_server_call_method (ServerHandle *handle, guint64 method_address,
+				  guint64 method_argument1, guint64 method_argument2,
+				  guint64 callback_argument)
+{
+	if (!global_vtable->call_method)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->call_method) (
+		handle, method_address, method_argument1, method_argument2,
+		callback_argument);
+}
+
+ServerCommandError
+mono_debugger_server_call_method_1 (ServerHandle *handle, guint64 method_address,
+				    guint64 method_argument, guint64 data_argument,
+				    guint64 data_argument2, const gchar *string_argument,
+				    guint64 callback_argument)
+{
+	if (!global_vtable->call_method_1)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->call_method_1) (
+		handle, method_address, method_argument, data_argument,
+		data_argument2, string_argument, callback_argument);
+}
+
+ServerCommandError
+mono_debugger_server_call_method_2 (ServerHandle *handle, guint64 method_address,
+				    guint32 data_size, gconstpointer data_buffer,
+				    guint64 callback_argument)
+{
+	if (!global_vtable->call_method_2)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->call_method_2) (
+		handle, method_address, data_size, data_buffer, callback_argument);
+}
+
+ServerCommandError
+mono_debugger_server_call_method_3 (ServerHandle *handle, guint64 method_address,
+				    guint64 method_argument, guint64 address_argument,
+				    guint32 blob_size, gconstpointer blob_data,
+				    guint64 callback_argument)
+{
+	if (!global_vtable->call_method_2)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->call_method_3) (
+		handle, method_address, method_argument, address_argument, blob_size,
+		blob_data, callback_argument);
+}
+
+ServerCommandError
+mono_debugger_server_call_method_invoke (ServerHandle *handle, guint64 invoke_method,
+					 guint64 method_argument, guint32 num_params,
+					 guint32 blob_size, guint64 *param_data,
+					 gint32 *offset_data, gconstpointer blob_data,
+					 guint64 callback_argument, gboolean debug)
+{
+	if (!global_vtable->call_method_invoke)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->call_method_invoke) (
+		handle, invoke_method, method_argument, num_params, blob_size,
+		param_data, offset_data, blob_data, callback_argument, debug);
+}
+
+ServerCommandError
+mono_debugger_server_execute_instruction (ServerHandle *handle, const guint8 *instruction,
+					  guint32 insn_size, gboolean update_ip)
+{
+	if (!global_vtable->execute_instruction)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->execute_instruction) (
+		handle, instruction, insn_size, update_ip);
+}
+
+ServerCommandError
+mono_debugger_server_mark_rti_frame (ServerHandle *handle)
+{
+	if (!global_vtable->mark_rti_frame)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->mark_rti_frame) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_abort_invoke (ServerHandle *handle, guint64 rti_id)
+{
+	if (!global_vtable->abort_invoke)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->abort_invoke) (handle, rti_id);
+}
+
+ServerCommandError
+mono_debugger_server_insert_breakpoint (ServerHandle *handle, guint64 address, guint32 *breakpoint)
+{
+	if (!global_vtable->insert_breakpoint)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->insert_breakpoint) (handle, address, breakpoint);
+}
+
+ServerCommandError
+mono_debugger_server_insert_hw_breakpoint (ServerHandle *handle, guint32 type, guint32 *idx,
+					   guint64 address, guint32 *breakpoint)
+{
+	if (!global_vtable->insert_hw_breakpoint)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->insert_hw_breakpoint) (
+		handle, type, idx, address, breakpoint);
+}
+
+ServerCommandError
+mono_debugger_server_remove_breakpoint (ServerHandle *handle, guint32 breakpoint)
+{
+	if (!global_vtable->remove_breakpoint)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->remove_breakpoint) (handle, breakpoint);
+}
+
+ServerCommandError
+mono_debugger_server_enable_breakpoint (ServerHandle *handle, guint32 breakpoint)
+{
+	if (!global_vtable->enable_breakpoint)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->enable_breakpoint) (handle, breakpoint);
+}
+
+ServerCommandError
+mono_debugger_server_disable_breakpoint (ServerHandle *handle, guint32 breakpoint)
+{
+	if (!global_vtable->disable_breakpoint)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->disable_breakpoint) (handle, breakpoint);
+}
+
+ServerCommandError
+mono_debugger_server_get_registers (ServerHandle *handle, guint64 *values)
+{
+	if (!global_vtable->get_registers)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_registers) (handle, values);
+}
+
+ServerCommandError
+mono_debugger_server_set_registers (ServerHandle *handle, guint64 *values)
+{
+	if (!global_vtable->set_registers)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->set_registers) (handle, values);
+}
+
+ServerCommandError
+mono_debugger_server_stop (ServerHandle *handle)
+{
+	if (!global_vtable->stop)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->stop) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_stop_and_wait (ServerHandle *handle, guint32 *status)
+{
+	if (!global_vtable->stop_and_wait)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->stop_and_wait) (handle, status);
+}
+
+ServerCommandError
+mono_debugger_server_set_signal (ServerHandle *handle, guint32 sig, guint32 send_it)
+{
+	if (!global_vtable->set_signal)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->set_signal) (handle, sig, send_it);
+}
+
+ServerCommandError
+mono_debugger_server_get_pending_signal  (ServerHandle *handle, guint32 *signal)
+{
+	if (!global_vtable->get_pending_signal)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_pending_signal) (handle, signal);
+}
+
+ServerCommandError
+mono_debugger_server_kill (ServerHandle *handle)
+{
+	return (* global_vtable->kill) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_get_signal_info (ServerHandle *handle, SignalInfo **sinfo)
+{
+	*sinfo = NULL;
+
+	if (!global_vtable->get_signal_info)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_signal_info) (handle, sinfo);
+
+}
+
+void
+mono_debugger_server_set_runtime_info (ServerHandle *handle, MonoRuntimeInfo *mono_runtime)
+{
+	if (global_vtable->set_runtime_info)
+		(* global_vtable->set_runtime_info) (handle, mono_runtime);
+}
+
+ServerCommandError
+mono_debugger_server_get_threads (ServerHandle *handle, guint32 *count, guint32 **threads)
+{
+	if (!global_vtable->get_threads)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_threads) (handle, count, threads);
+}
+
+ServerCommandError
+mono_debugger_server_get_application (ServerHandle *handle, gchar **exe_file, gchar **cwd,
+				      guint32 *nargs, gchar ***cmdline_args)
+{
+	if (!global_vtable->get_application)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_application) (handle, exe_file, cwd, nargs, cmdline_args);
+}
+
+ServerCommandError
+mono_debugger_server_detach_after_fork (ServerHandle *handle)
+{
+	if (!global_vtable->detach_after_fork)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->detach_after_fork) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_push_registers (ServerHandle *handle, guint64 *new_rsp)
+{
+	if (!global_vtable->push_registers)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->push_registers) (handle, new_rsp);
+}
+
+ServerCommandError
+mono_debugger_server_pop_registers (ServerHandle *handle)
+{
+	if (!global_vtable->pop_registers)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->pop_registers) (handle);
+}
+
+ServerCommandError
+mono_debugger_server_get_callback_frame (ServerHandle *handle, guint64 stack_pointer,
+					 gboolean exact_match, CallbackInfo *info)
+{
+	if (!global_vtable->get_callback_frame)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->get_callback_frame) (
+		handle, stack_pointer, exact_match, info);
+}
+
+ServerCommandError
+mono_debugger_server_restart_notification (ServerHandle *handle)
+{
+	if (!global_vtable->restart_notification)
+		return COMMAND_ERROR_NOT_IMPLEMENTED;
+
+	return (* global_vtable->restart_notification) (handle);
+}
+
+void
+mono_debugger_server_get_registers_from_core_file (guint64 *values, const guint8 *buffer)
+{
+	(* global_vtable->get_registers_from_core_file) (values, buffer);
+}
+
+
+void
+mono_debugger_server_static_init (void)
+{
+	(* global_vtable->static_init) ();
+}
+
+int
+mono_debugger_server_get_pending_sigint (void)
+{
+	return (* global_vtable->get_pending_sigint) ();
+}
+
+void
+mono_debugger_server_sem_init (void)
+{
+	(* global_vtable->sem_init) ();
+}
+
+void
+mono_debugger_server_sem_wait (void)
+{
+	(* global_vtable->sem_wait) ();
+}
+
+void
+mono_debugger_server_sem_post (void)
+{
+	(* global_vtable->sem_post) ();
+}
+
+int
+mono_debugger_server_sem_get_value (void)
+{
+	return (* global_vtable->sem_get_value) ();
+}
diff --git a/sysdeps/server/linux-proc-service.h b/backend/server/linux-proc-service.h
similarity index 100%
rename from sysdeps/server/linux-proc-service.h
rename to backend/server/linux-proc-service.h
diff --git a/backend/server/mutex.c b/backend/server/mutex.c
new file mode 100644
index 0000000..2d252e6
--- /dev/null
+++ b/backend/server/mutex.c
@@ -0,0 +1,65 @@
+#include <server.h>
+#include <mutex.h>
+
+GMutex *
+mono_debugger_mutex_new (void)
+{
+	return g_mutex_new ();
+}
+
+void
+mono_debugger_mutex_free (GMutex *mutex)
+{
+	g_mutex_free (mutex);
+}
+
+void
+mono_debugger_mutex_lock (GMutex *mutex)
+{
+	g_mutex_lock (mutex);
+}
+
+void
+mono_debugger_mutex_unlock (GMutex *mutex)
+{
+	g_mutex_unlock (mutex);
+}
+
+gboolean
+mono_debugger_mutex_trylock (GMutex *mutex)
+{
+	return g_mutex_trylock (mutex);
+}
+
+GCond *
+mono_debugger_cond_new (void)
+{
+	return g_cond_new ();
+}
+
+void
+mono_debugger_cond_free (GCond *cond)
+{
+	g_cond_free (cond);
+}
+
+void
+mono_debugger_cond_wait (GMutex *mutex, GCond *cond)
+{
+	g_cond_wait (cond, mutex);
+}
+
+gboolean
+mono_debugger_cond_timed_wait (GMutex *mutex, GCond *cond, int milliseconds)
+{
+	GTimeVal time_val;
+	g_get_current_time (&time_val);
+	g_time_val_add (&time_val, milliseconds);
+	return g_cond_timed_wait (cond, mutex, &time_val);
+}
+
+void
+mono_debugger_cond_broadcast (GCond *cond)
+{
+	g_cond_broadcast (cond);
+}
diff --git a/backend/server/mutex.h b/backend/server/mutex.h
new file mode 100644
index 0000000..8b3195d
--- /dev/null
+++ b/backend/server/mutex.h
@@ -0,0 +1,38 @@
+#ifndef __MONO_DEBUGGER_MUTEX_H__
+#define __MONO_DEBUGGER_MUTEX_H__
+
+#include <glib.h>
+#include <glib/gthread.h>
+
+G_BEGIN_DECLS
+
+GMutex *
+mono_debugger_mutex_new          (void);
+
+void
+mono_debugger_mutex_free         (GMutex *mutex);
+
+void
+mono_debugger_mutex_lock         (GMutex *mutex);
+
+void
+mono_debugger_mutex_unlock       (GMutex *mutex);
+
+gboolean
+mono_debugger_mutex_trylock      (GMutex *mutex);
+
+GCond *
+mono_debugger_cond_new           (void);
+
+void
+mono_debugger_cond_free          (GCond *cond);
+
+void
+mono_debugger_cond_wait          (GMutex *mutex, GCond *cond);
+
+void
+mono_debugger_cond_broadcast     (GCond *cond);
+
+G_END_DECLS
+
+#endif
diff --git a/backend/server/server.h b/backend/server/server.h
new file mode 100644
index 0000000..c987b3f
--- /dev/null
+++ b/backend/server/server.h
@@ -0,0 +1,753 @@
+#ifndef __MONO_DEBUGGER_SERVER_H__
+#define __MONO_DEBUGGER_SERVER_H__
+
+#include <breakpoints.h>
+#include <signal.h>
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+#ifdef __GNUC__
+#define MONO_ZERO_LEN_ARRAY 0
+#else
+#define MONO_ZERO_LEN_ARRAY 1
+#endif
+
+#define MONO_DEBUGGER_REMOTE_VERSION		1
+#define MONO_DEBUGGER_REMOTE_MAGIC		0x36885fe4
+
+/*
+ * Keep in sync with TargetExceptionType in classes/TargetException.cs.
+ */
+typedef enum {
+	COMMAND_ERROR_NONE = 0,
+	COMMAND_ERROR_UNKNOWN_ERROR,
+	COMMAND_ERROR_INTERNAL_ERROR,
+	COMMAND_ERROR_NO_TARGET,
+	COMMAND_ERROR_ALREADY_HAVE_TARGET,
+	COMMAND_ERROR_CANNOT_START_TARGET,
+	COMMAND_ERROR_NOT_STOPPED,
+	COMMAND_ERROR_ALREADY_STOPPED,
+	COMMAND_ERROR_RECURSIVE_CALL,
+	COMMAND_ERROR_NO_SUCH_BREAKPOINT,
+	COMMAND_ERROR_NO_SUCH_REGISTER,
+	COMMAND_ERROR_DR_OCCUPIED,
+	COMMAND_ERROR_MEMORY_ACCESS,
+	COMMAND_ERROR_NOT_IMPLEMENTED,
+	COMMAND_ERROR_IO_ERROR,
+	COMMAND_ERROR_NO_CALLBACK_FRAME,
+	COMMAND_ERROR_PERMISSION_DENIED
+} ServerCommandError;
+
+typedef enum {
+	MESSAGE_NONE,
+	MESSAGE_UNKNOWN_ERROR = 1,
+	MESSAGE_CHILD_EXITED = 2,
+	MESSAGE_CHILD_STOPPED,
+	MESSAGE_CHILD_SIGNALED,
+	MESSAGE_CHILD_CALLBACK,
+	MESSAGE_CHILD_CALLBACK_COMPLETED,
+	MESSAGE_CHILD_HIT_BREAKPOINT,
+	MESSAGE_CHILD_MEMORY_CHANGED,
+	MESSAGE_CHILD_CREATED_THREAD,
+	MESSAGE_CHILD_FORKED,
+	MESSAGE_CHILD_EXECD,
+	MESSAGE_CHILD_CALLED_EXIT,
+	MESSAGE_CHILD_NOTIFICATION,
+	MESSAGE_CHILD_INTERRUPTED,
+	MESSAGE_RUNTIME_INVOKE_DONE,
+	MESSAGE_INTERNAL_ERROR
+} ServerStatusMessageType;
+
+typedef struct {
+	ServerStatusMessageType type;
+	guint32 arg;
+} ServerStatusMessage;
+
+typedef struct {
+	guint64 address;
+	guint64 stack_pointer;
+	guint64 frame_address;
+} StackFrame;
+
+typedef struct {
+	guint64 callback_argument;
+	guint64 call_address;
+	guint64 stack_pointer;
+	guint64 is_rti_frame   : 1;
+	guint64 is_exact_match : 1;
+	guint64 saved_registers [MONO_ZERO_LEN_ARRAY];
+} CallbackInfo;
+
+#define EXECUTABLE_CODE_CHUNK_SIZE		16
+
+typedef struct
+{
+	guint32 address_size;
+	guint64 notification_address;
+	guint64 executable_code_buffer;
+	guint32 executable_code_buffer_size;
+	guint32 executable_code_chunk_size;
+	guint32 executable_code_total_chunks;
+	guint64 breakpoint_info_area;
+	guint64 breakpoint_table;
+	guint32 breakpoint_table_size;
+
+	/* Private */
+	guint8 *breakpoint_table_bitfield;
+	guint8 *executable_code_bitfield;
+	guint32 executable_code_last_slot;
+} MonoRuntimeInfo;
+
+typedef enum {
+	SERVER_CAPABILITIES_NONE		= 0,
+	SERVER_CAPABILITIES_THREAD_EVENTS	= 1,
+	SERVER_CAPABILITIES_CAN_DETACH_ANY	= 2
+} ServerCapabilities;
+
+typedef enum {
+	SERVER_TYPE_UNKNOWN			= 0,
+	SERVER_TYPE_LINUX_PTRACE		= 1,
+	SERVER_TYPE_DARWIN			= 2,
+	SERVER_TYPE_WIN32			= 3
+} ServerType;
+
+/* This is an opaque data structure which the backend may use to store stuff. */
+typedef struct InferiorVTable InferiorVTable;
+typedef struct InferiorHandle InferiorHandle;
+typedef struct ServerHandle ServerHandle;
+typedef struct ArchInfo ArchInfo;
+
+typedef struct IOThreadData IOThreadData;
+
+/* C# delegates. */
+typedef void (*ChildOutputFunc) (gboolean is_stderr, const char *output);
+
+typedef struct {
+	int sigkill;
+	int sigstop;
+	int sigint;
+	int sigchld;
+	int sigfpe;
+	int sigquit;
+	int sigabrt;
+	int sigsegv;
+	int sigill;
+	int sigbus;
+	int sigwinch;
+	int kernel_sigrtmin;
+	int mono_thread_abort;
+} SignalInfo;
+
+/*
+ * Server functions.
+ *
+ * When porting the debugger to another architecture, you need to implement all functions
+ * in this vtable.
+ *
+ * It is a requirement that all functions always return immediately without blocking.
+ * If the requested operation cannot be performed (for instance because the target is currently
+ * running, don't wait for it but return an error condition!).
+ */
+
+struct ServerHandle {
+	ArchInfo *arch;
+	InferiorHandle *inferior;
+	MonoRuntimeInfo *mono_runtime;
+	BreakpointManager *bpm;
+};
+
+struct InferiorVTable {
+	
+	void                  (* static_init)         (void);
+
+	void                  (* global_init)         (void);
+
+	ServerType            (* get_server_type)     (void);
+
+	ServerCapabilities    (* get_capabilities)    (void);
+
+	ServerHandle *        (* create_inferior)     (BreakpointManager  *bpm);
+
+	ServerCommandError    (* initialize_process)  (ServerHandle       *handle);
+
+	ServerCommandError    (* initialize_thread)   (ServerHandle       *handle,
+						       guint32             pid,
+						       gboolean            wait);
+
+	void                  (* set_runtime_info)    (ServerHandle       *handle,
+						       MonoRuntimeInfo    *mono_runtime_info);
+
+	void                  (* io_thread_main)      (IOThreadData       *io_data,
+						       ChildOutputFunc     func);
+
+	ServerCommandError    (* spawn)               (ServerHandle       *handle,
+						       const gchar        *working_directory,
+						       const gchar       **argv,
+						       const gchar       **envp,
+						       gboolean            redirect_fds,
+						       gint               *child_pid,
+						       IOThreadData      **io_data,
+						       gchar             **error);
+
+	ServerCommandError    (* attach)              (ServerHandle       *handle,
+						       guint32             pid);
+
+	ServerCommandError    (* detach)              (ServerHandle       *handle);
+
+	void                  (* finalize)            (ServerHandle        *handle);
+
+	guint32               (* global_wait)         (guint32             *status_ret);
+
+	ServerCommandError    (* stop_and_wait)       (ServerHandle        *handle,
+						       guint32             *status);
+
+	ServerStatusMessageType (* dispatch_event)    (ServerHandle        *handle,
+						       guint32              status,
+						       guint64             *arg,
+						       guint64             *data1,
+						       guint64             *data2,
+						       guint32             *opt_data_size,
+						       gpointer            *opt_data);
+
+	ServerStatusMessageType (* dispatch_simple)   (guint32              status,
+						       guint32             *arg);
+
+	/* Get sizeof (int), sizeof (long) and sizeof (void *) from the target. */
+	ServerCommandError    (* get_target_info)     (guint32            *target_int_size,
+						       guint32            *target_long_size,
+						       guint32            *target_address_size,
+						       guint32            *is_bigendian);
+
+	/*
+	 * Continue the target.
+	 * This operation must start the target and then return immediately
+	 * (without waiting for the target to stop).
+	 */
+	ServerCommandError    (* run)                 (ServerHandle     *handle);
+
+	/*
+	 * Single-step one machine instruction.
+	 * This operation must start the target and then return immediately
+	 * (without waiting for the target to stop).
+	 */
+	ServerCommandError    (* step)                (ServerHandle     *handle);
+
+	ServerCommandError    (* resume)              (ServerHandle     *handle);
+
+	/*
+	 * Get the current program counter.
+	 * Return COMMAND_ERROR_NOT_STOPPED if the target is currently running.
+	 * This is a time-critical function, it must return immediately without blocking.
+	 */
+	ServerCommandError    (* get_frame)           (ServerHandle     *handle,
+						       StackFrame       *frame);
+
+	/*
+	 * Checks whether the current instruction is a breakpoint.
+	 */
+	ServerCommandError    (* current_insn_is_bpt) (ServerHandle     *handle,
+						       guint32          *is_breakpoint);
+
+	ServerCommandError    (* peek_word)           (ServerHandle     *handle,
+						       guint64           start,
+						       guint64          *word);
+
+	/*
+	 * Read `size' bytes from the target's address space starting at `start'.
+	 * Writes the result into `buffer' (which has been allocated by the caller).
+	 */
+	ServerCommandError    (* read_memory)         (ServerHandle     *handle,
+						       guint64           start,
+						       guint32           size,
+						       gpointer          buffer);
+
+	/*
+	 * Write `size' bytes from `buffer' to the target's address space starting at `start'.
+	 */
+	ServerCommandError    (* write_memory)        (ServerHandle     *handle,
+						       guint64           start,
+						       guint32           size,
+						       gconstpointer     data);
+
+	/*
+	 * Call `guint64 (*func) (guint64)' function at address `method' in the target address
+	 * space, pass it argument `method_argument', send a MESSAGE_CHILD_CALLBACK with the
+	 * `callback_argument' and the function's return value when the function returns.
+	 * This function must return immediately without waiting for the target !
+	 */
+	ServerCommandError    (* call_method)         (ServerHandle     *handle,
+						       guint64           method,
+						       guint64           method_argument1,
+						       guint64           method_argument2,
+						       guint64           callback_argument);
+
+	/*
+	 * Call `guint64 (*func) (guint64, const gchar *)' function at address `method' in the
+	 * target address space, pass it arguments `method_argument' and `string_argument' , send
+	 * a MESSAGE_CHILD_CALLBACK with the `callback_argument' and the function's return value
+	 * when the function returns.
+	 * This function must return immediately without waiting for the target !
+	 */
+	ServerCommandError    (* call_method_1)       (ServerHandle     *handle,
+						       guint64           method,
+						       guint64           method_argument,
+						       guint64           data_argument,
+						       guint64           data_argument2,
+						       const gchar      *string_argument,
+						       guint64           callback_argument);
+
+	ServerCommandError    (* call_method_2)       (ServerHandle     *handle,
+						       guint64           method,
+						       guint32           data_size,
+						       gconstpointer     data_buffer,
+						       guint64           callback_argument);
+
+	ServerCommandError    (* call_method_3)       (ServerHandle     *handle,
+						       guint64           method_address,
+						       guint64           method_argument,
+						       guint64           address_argument,
+						       guint32           blob_size,
+						       gconstpointer     blob_data,
+						       guint64           callback_argument);
+
+	ServerCommandError    (* call_method_invoke)  (ServerHandle     *handle,
+						       guint64           invoke_method,
+						       guint64           method_argument,
+						       guint32           num_params,
+						       guint32           glob_size,
+						       guint64          *param_data,
+						       gint32           *offset_data,
+						       gconstpointer     blob_data,
+						       guint64           callback_argument,
+						       gboolean          debug);
+
+	ServerCommandError    (* execute_instruction) (ServerHandle     *handle,
+						       const guint8     *instruction,
+						       guint32           size,
+						       gboolean          update_ip);
+
+	ServerCommandError    (* mark_rti_frame)      (ServerHandle     *handle);
+
+	ServerCommandError    (* abort_invoke)        (ServerHandle     *handle,
+						       guint64           rti_id);
+
+	/*
+	 * Insert a breakpoint at address `address' in the target's address space.
+	 * Returns a breakpoint handle in `bhandle' which can be passed to `remove_breakpoint'
+	 * to remove the breakpoint.
+	 */
+	ServerCommandError    (* insert_breakpoint)   (ServerHandle     *handle,
+						       guint64           address,
+						       guint32          *bhandle);
+
+	/*
+	 * Insert a hardware breakpoint at address `address' in the target's address space.
+	 * Returns a breakpoint handle in `bhandle' which can be passed to `remove_breakpoint'
+	 * to remove the breakpoint.
+	 */
+	ServerCommandError    (* insert_hw_breakpoint)(ServerHandle     *handle,
+						       guint32           type,
+						       guint32          *idx,
+						       guint64           address,
+						       guint32          *bhandle);
+
+	/*
+	 * Remove breakpoint `bhandle'.
+	 */
+	ServerCommandError    (* remove_breakpoint)   (ServerHandle     *handle,
+						       guint32           bhandle);
+
+	/*
+	 * Enables breakpoint `bhandle'.
+	 */
+	ServerCommandError    (* enable_breakpoint)   (ServerHandle     *handle,
+						       guint32           bhandle);
+
+	/*
+	 * Disables breakpoint `bhandle'.
+	 */
+	ServerCommandError    (* disable_breakpoint)  (ServerHandle     *handle,
+						       guint32           bhandle);
+
+	/*
+	 * Get all breakpoints.  Writes number of breakpoints into `count' and returns a g_new0()
+	 * allocated list of guint32's in `breakpoints'.  The caller is responsible for freeing this
+	 * data structure.
+	 */
+	ServerCommandError    (* get_breakpoints)     (ServerHandle     *handle,
+						       guint32          *count,
+						       guint32         **breakpoints);
+
+	/*
+	 * Get processor registers.
+	 *
+	 */
+	ServerCommandError    (* get_registers)       (ServerHandle     *handle,
+						       guint64          *values);
+
+	/*
+	 * Set processor registers.
+	 *
+	 */
+	ServerCommandError    (* set_registers)       (ServerHandle     *handle,
+						       guint64          *values);
+
+	/*
+	 * Stop the target.
+	 */
+	ServerCommandError    (* stop)                (ServerHandle     *handle);
+
+	/*
+	 * Send signal `sig' to the target the next time it is continued.
+	 */
+	ServerCommandError    (* set_signal)          (ServerHandle     *handle,
+						       guint32           sig,
+						       guint32           send_it);
+
+	ServerCommandError    (* get_pending_signal)  (ServerHandle     *handle,
+						       guint32          *signal);
+
+	/*
+	 * Kill the target.
+	 */
+	ServerCommandError    (* kill)                (ServerHandle     *handle);
+
+	ServerCommandError    (* get_signal_info)     (ServerHandle     *handle,
+						       SignalInfo      **sinfo);
+
+	ServerCommandError    (* get_threads)         (ServerHandle     *handle,
+						       guint32          *count,
+						       guint32         **threads);
+
+	ServerCommandError    (* get_application)     (ServerHandle     *handle,
+						       gchar           **exe_file,
+						       gchar           **cwd,
+						       guint32          *nargs,
+						       gchar          ***cmdline_args);
+
+	ServerCommandError    (* detach_after_fork)   (ServerHandle      *handle);
+
+	ServerCommandError    (* push_registers)      (ServerHandle      *handle,
+						       guint64           *new_rsp);
+
+	ServerCommandError    (* pop_registers)       (ServerHandle      *handle);
+
+	ServerCommandError    (* get_callback_frame)  (ServerHandle      *handle,
+						       guint64            stack_pointer,
+						       gboolean           exact_match,
+						       CallbackInfo      *info);
+
+	ServerCommandError    (* restart_notification) (ServerHandle      *handle);
+
+	void         (* get_registers_from_core_file) (guint64           *values,
+						       const guint8      *buffer);
+
+	guint32               (*get_current_pid) (void);
+
+	guint64               (*get_current_thread) (void);
+	
+	void                  (*sem_init) (void);
+
+	void                  (*sem_wait) (void);
+
+	void                  (*sem_post) (void);
+
+	int                   (*sem_get_value) (void);
+
+	int                   (*get_pending_sigint) (void);
+};
+
+/*
+ * Library functions.
+ *
+ * These functions just call the corresponding function in the ServerHandle's vtable.
+ * They're just here to be called from C#.
+ */
+
+void
+mono_debugger_server_static_init          (void);
+
+void
+mono_debugger_server_global_init          (void);
+
+ServerCapabilities
+mono_debugger_server_get_capabilities     (void);
+
+ServerType
+mono_debugger_server_get_server_type      (void);
+
+ServerHandle *
+mono_debugger_server_create_inferior      (BreakpointManager  *bpm);
+
+ServerCommandError
+mono_debugger_server_initialize_process   (ServerHandle       *handle);
+
+ServerCommandError
+mono_debugger_server_initialize_thread    (ServerHandle       *handle,
+					   guint32             pid,
+					   gboolean            wait);
+
+void
+mono_debugger_server_io_thread_main       (IOThreadData       *io_data,
+					   ChildOutputFunc     func);
+
+ServerCommandError
+mono_debugger_server_spawn                (ServerHandle       *handle,
+					   const gchar        *working_directory,
+					   const gchar       **argv,
+					   const gchar       **envp,
+					   gboolean            redirect_fds,
+					   gint               *child_pid,
+					   IOThreadData      **io_data,
+					   gchar             **error);
+
+ServerCommandError
+mono_debugger_server_attach               (ServerHandle       *handle,
+					   guint32             pid);
+
+void
+mono_debugger_server_finalize             (ServerHandle       *handle);
+
+guint32
+mono_debugger_server_global_wait          (guint32                 *status);
+
+ServerStatusMessageType
+mono_debugger_server_dispatch_event       (ServerHandle            *handle,
+					   guint32                  status,
+					   guint64                 *arg,
+					   guint64                 *data1,
+					   guint64                 *data2,
+					   guint32                 *opt_data_size,
+					   gpointer                *opt_data);
+
+ServerCommandError
+mono_debugger_server_get_target_info      (guint32            *target_int_size,
+					   guint32            *target_long_size,
+					   guint32            *target_address_size,
+					   guint32            *is_bigendian);
+
+ServerCommandError
+mono_debugger_server_get_frame            (ServerHandle       *handle,
+					   StackFrame         *frame);
+
+ServerCommandError
+mono_debugger_server_current_insn_is_bpt  (ServerHandle       *handle,
+					   guint32            *is_breakpoint);
+
+ServerCommandError
+mono_debugger_server_step                 (ServerHandle       *handle);
+
+ServerCommandError
+mono_debugger_server_continue             (ServerHandle       *handle);
+
+ServerCommandError
+mono_debugger_server_resume               (ServerHandle       *handle);
+
+ServerCommandError
+mono_debugger_server_detach               (ServerHandle       *handle);
+
+ServerCommandError
+mono_debugger_server_peek_word            (ServerHandle       *handle,
+					   guint64             start,
+					   guint64            *word);
+
+ServerCommandError
+mono_debugger_server_read_memory          (ServerHandle       *handle,
+					   guint64             start,
+					   guint32             size,
+					   gpointer            data);
+
+ServerCommandError
+mono_debugger_server_write_memory         (ServerHandle       *handle,
+					   guint64             start,
+					   guint32             size,
+					   gconstpointer       data);
+
+ServerCommandError
+mono_debugger_server_call_method          (ServerHandle       *handle,
+					   guint64             method_address,
+					   guint64             method_argument1,	
+					   guint64             method_argument2,
+					   guint64             callback_argument);
+
+ServerCommandError
+mono_debugger_server_call_method_1        (ServerHandle       *handle,
+					   guint64             method_address,
+					   guint64             method_argument,
+					   guint64             data_argument,
+					   guint64             data_argument2,
+					   const gchar        *string_argument,
+					   guint64             callback_argument);
+
+ServerCommandError
+mono_debugger_server_call_method_2        (ServerHandle       *handle,
+					   guint64             method_address,
+					   guint32             data_size,
+					   gconstpointer       data_buffer,
+					   guint64             callback_argument);
+
+ServerCommandError
+mono_debugger_server_call_method_3        (ServerHandle       *handle,
+					   guint64             method_address,
+					   guint64             method_argument,
+					   guint64             address_argument,
+					   guint32             blob_size,
+					   gconstpointer       blob_data,
+					   guint64             callback_argument);
+
+ServerCommandError
+mono_debugger_server_call_method_invoke   (ServerHandle       *handle,
+					   guint64             invoke_method,
+					   guint64             method_argument,
+					   guint32             num_params,
+					   guint32             blob_size,
+					   guint64            *param_data,
+					   gint32             *offset_data,
+					   gconstpointer       blob_data,
+					   guint64             callback_argument,
+					   gboolean            debug);
+
+ServerCommandError
+mono_debugger_execute_instruction         (ServerHandle        *handle,
+					   const guint8        *instruction,
+					   guint32              instruction_size,
+					   gboolean             update_ip);
+
+ServerCommandError
+mono_debugger_mark_rti_framenvoke        (ServerHandle        *handle);
+
+ServerCommandError
+mono_debugger_server_abort_invoke        (ServerHandle        *handle,
+					  guint64              rti_id);
+
+ServerCommandError
+mono_debugger_server_insert_breakpoint   (ServerHandle        *handle,
+					  guint64              address,
+					  guint32             *breakpoint);
+
+ServerCommandError
+mono_debugger_server_insert_hw_breakpoint(ServerHandle        *handle,
+					  guint32              type,
+					  guint32             *idx,
+					  guint64              address,
+					  guint32             *breakpoint);
+
+ServerCommandError
+mono_debugger_server_remove_breakpoint   (ServerHandle        *handle,
+					  guint32              breakpoint);
+
+ServerCommandError
+mono_debugger_server_enable_breakpoint   (ServerHandle        *handle,
+					  guint32              breakpoint);
+
+ServerCommandError
+mono_debugger_server_disable_breakpoint  (ServerHandle        *handle,
+					  guint32              breakpoint);
+
+ServerCommandError
+mono_debugger_server_get_registers       (ServerHandle        *handle,
+					  guint64             *values);
+
+ServerCommandError
+mono_debugger_server_set_registers       (ServerHandle        *handle,
+					  guint64             *values);
+
+ServerCommandError
+mono_debugger_server_stop                (ServerHandle        *handle);
+
+ServerCommandError
+mono_debugger_server_stop_and_wait       (ServerHandle        *handle,
+					  guint32             *status);
+
+ServerCommandError
+mono_debugger_server_set_signal          (ServerHandle        *handle,
+					  guint32              sig,
+					  guint32              send_it);
+
+ServerCommandError
+mono_debugger_server_get_pending_signal  (ServerHandle        *handle,
+					  guint32             *signal);
+
+ServerCommandError
+mono_debugger_server_kill                (ServerHandle        *handle);
+
+ServerCommandError
+mono_debugger_server_get_signal_info     (ServerHandle        *handle,
+					  SignalInfo         **sinfo);
+
+void
+mono_debugger_server_set_runtime_info    (ServerHandle        *handle,
+					  MonoRuntimeInfo     *mono_runtime);
+
+ServerCommandError
+mono_debugger_server_get_threads         (ServerHandle        *handle,
+					  guint32             *count,
+					  guint32            **threads);
+
+ServerCommandError
+mono_debugger_server_get_application     (ServerHandle        *handle,
+					  gchar              **exe_file,
+					  gchar              **cwd,
+					  guint32             *nargs,
+					  gchar             ***cmdline_args);
+
+ServerCommandError
+mono_debugger_server_detach_after_fork   (ServerHandle        *handle);
+
+ServerCommandError
+mono_debugger_server_push_registers      (ServerHandle        *handle,
+					  guint64             *new_rsp);
+
+ServerCommandError
+mono_debugger_server_pop_registers       (ServerHandle        *handle);
+
+ServerCommandError
+mono_debugger_server_get_callback_frame  (ServerHandle        *handle,
+					  guint64              stack_pointer,
+					  gboolean             exact_match,
+					  CallbackInfo        *info);
+
+ServerCommandError
+mono_debugger_server_restart_notification (ServerHandle        *handle);
+
+MonoRuntimeInfo *
+mono_debugger_server_initialize_mono_runtime (guint32 address_size,
+					      guint64 notification_address,
+					      guint64 executable_code_buffer,
+					      guint32 executable_code_buffer_size,
+					      guint64 breakpoint_info_area,
+					      guint64 breakpoint_table,
+					      guint32 breakpoint_table_size);
+
+void
+mono_debugger_server_finalize_mono_runtime (MonoRuntimeInfo *runtime);
+
+void
+mono_debugger_server_initialize_code_buffer (MonoRuntimeInfo *runtime,
+					     guint64 executable_code_buffer,
+					     guint32 executable_code_buffer_size);
+
+void
+mono_debugger_server_get_registers_from_core_file (guint64 *values,
+						   const guint8 *buffer);
+
+guint32
+mono_debugger_server_get_current_pid (void);
+
+guint64
+mono_debugger_server_get_current_thread (void);
+
+
+/* POSIX semaphores */
+
+void mono_debugger_server_sem_init (void);
+void mono_debugger_server_sem_wait (void);
+void mono_debugger_server_sem_post (void);
+int mono_debugger_server_sem_get_value (void);
+
+int mono_debugger_server_get_pending_sigint (void);
+
+G_END_DECLS
+
+#endif
diff --git a/sysdeps/server/thread-db.c b/backend/server/thread-db.c
similarity index 100%
rename from sysdeps/server/thread-db.c
rename to backend/server/thread-db.c
diff --git a/sysdeps/server/thread-db.h b/backend/server/thread-db.h
similarity index 100%
rename from sysdeps/server/thread-db.h
rename to backend/server/thread-db.h
diff --git a/sysdeps/server/x86-arch.h b/backend/server/x86-arch.h
similarity index 100%
rename from sysdeps/server/x86-arch.h
rename to backend/server/x86-arch.h
diff --git a/backend/server/x86-linux-ptrace.c b/backend/server/x86-linux-ptrace.c
new file mode 100644
index 0000000..8315fb9
--- /dev/null
+++ b/backend/server/x86-linux-ptrace.c
@@ -0,0 +1,720 @@
+static sem_t manager_semaphore;
+
+static void
+server_ptrace_sem_init (void)
+{
+	sem_init (&manager_semaphore, 1, 0);
+}
+
+static void
+server_ptrace_sem_wait (void)
+{
+	sem_wait (&manager_semaphore);
+}
+
+static void
+server_ptrace_sem_post (void)
+{
+	sem_post (&manager_semaphore);
+}
+
+static int
+server_ptrace_sem_get_value (void)
+{
+	int ret;
+
+	sem_getvalue (&manager_semaphore, &ret);
+	return ret;
+}
+
+static ServerType
+server_ptrace_get_server_type (void)
+{
+	return SERVER_TYPE_LINUX_PTRACE;
+}
+
+static ServerCapabilities
+server_ptrace_get_capabilities (void)
+{
+	return SERVER_CAPABILITIES_THREAD_EVENTS | SERVER_CAPABILITIES_CAN_DETACH_ANY;
+}
+
+static ServerCommandError
+_server_ptrace_check_errno (InferiorHandle *inferior)
+{
+	gchar *filename;
+
+	if (!errno)
+		return COMMAND_ERROR_NONE;
+	else if (errno != ESRCH) {
+		g_message (G_STRLOC ": %d - %s", inferior->pid, g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	filename = g_strdup_printf ("/proc/%d/stat", inferior->pid);
+	if (g_file_test (filename, G_FILE_TEST_EXISTS)) {
+		g_free (filename);
+		return COMMAND_ERROR_NOT_STOPPED;
+	}
+
+	g_warning (G_STRLOC ": %d - %s - %d (%s)", inferior->pid, filename,
+		   errno, g_strerror (errno));
+	g_free (filename);
+	return COMMAND_ERROR_NO_TARGET;
+}
+
+static ServerCommandError
+_server_ptrace_make_memory_executable (ServerHandle *handle, guint64 start, guint32 size)
+{
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+_server_ptrace_get_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs)
+{
+	if (ptrace (PT_GETREGS, inferior->pid, NULL, regs) != 0)
+		return _server_ptrace_check_errno (inferior);
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+_server_ptrace_set_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs)
+{
+	if (ptrace (PT_SETREGS, inferior->pid, NULL, regs) != 0)
+		return _server_ptrace_check_errno (inferior);
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+_server_ptrace_get_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs)
+{
+	if (ptrace (PT_GETFPREGS, inferior->pid, NULL, regs) != 0)
+		return _server_ptrace_check_errno (inferior);
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+_server_ptrace_set_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs)
+{
+	if (ptrace (PT_SETFPREGS, inferior->pid, NULL, regs) != 0)
+		return _server_ptrace_check_errno (inferior);
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+_server_ptrace_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer buffer)
+{
+	guint8 *ptr = buffer;
+	guint32 old_size = size;
+
+	while (size) {
+		int ret = pread64 (handle->inferior->os.mem_fd, ptr, size, start);
+		if (ret < 0) {
+			if (errno == EINTR)
+				continue;
+			else if (errno == ESRCH)
+				return COMMAND_ERROR_NOT_STOPPED;
+			else if (errno == EIO)
+				return COMMAND_ERROR_MEMORY_ACCESS;
+			return COMMAND_ERROR_MEMORY_ACCESS;
+		}
+
+		size -= ret;
+		ptr += ret;
+	}
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer buffer)
+{
+	ServerCommandError result = _server_ptrace_read_memory (handle, start, size, buffer);
+	if (result != COMMAND_ERROR_NONE)
+		return result;
+	x86_arch_remove_breakpoints_from_target_memory (handle, start, size, buffer);
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_write_memory (ServerHandle *handle, guint64 start,
+			    guint32 size, gconstpointer buffer)
+{
+	InferiorHandle *inferior = handle->inferior;
+	ServerCommandError result;
+	const long *ptr = buffer;
+	guint64 addr = start;
+	char temp [8];
+
+	while (size >= sizeof (long)) {
+		long word = *ptr++;
+
+		errno = 0;
+		if (ptrace (PT_WRITE_D, inferior->pid, GSIZE_TO_POINTER (addr), word) != 0)
+			return _server_ptrace_check_errno (inferior);
+
+		addr += sizeof (long);
+		size -= sizeof (long);
+	}
+
+	if (!size)
+		return COMMAND_ERROR_NONE;
+
+	result = _server_ptrace_read_memory (handle, addr, sizeof (long), &temp);
+	if (result != COMMAND_ERROR_NONE)
+		return result;
+
+	memcpy (&temp, ptr, size);
+
+	return server_ptrace_write_memory (handle, addr, sizeof (long), &temp);
+}
+
+static ServerCommandError
+server_ptrace_poke_word (ServerHandle *handle, guint64 addr, gsize value)
+{
+	errno = 0;
+	if (ptrace (PT_WRITE_D, handle->inferior->pid, GSIZE_TO_POINTER (addr), value) != 0)
+		return _server_ptrace_check_errno (handle->inferior);
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+_server_ptrace_set_dr (InferiorHandle *handle, int regnum, guint64 value)
+{
+	errno = 0;
+	ptrace (PTRACE_POKEUSER, handle->pid, offsetof (struct user, u_debugreg [regnum]), value);
+	if (errno) {
+		g_message (G_STRLOC ": %d - %d - %s", handle->pid, regnum, g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	return COMMAND_ERROR_NONE;
+}
+
+
+static ServerCommandError
+_server_ptrace_get_dr (InferiorHandle *handle, int regnum, guint64 *value)
+{
+	int ret;
+
+	errno = 0;
+	ret = ptrace (PTRACE_PEEKUSER, handle->pid, offsetof (struct user, u_debugreg [regnum]));
+	if (errno) {
+		g_message (G_STRLOC ": %d - %d - %s", handle->pid, regnum, g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	*value = ret;
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_continue (ServerHandle *handle)
+{
+	InferiorHandle *inferior = handle->inferior;
+
+	errno = 0;
+	inferior->stepping = FALSE;
+	if (ptrace (PT_CONTINUE, inferior->pid, (caddr_t) 1, inferior->last_signal)) {
+		return _server_ptrace_check_errno (inferior);
+	}
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_step (ServerHandle *handle)
+{
+	InferiorHandle *inferior = handle->inferior;
+
+	errno = 0;
+	inferior->stepping = TRUE;
+	if (ptrace (PT_STEP, inferior->pid, (caddr_t) 1, inferior->last_signal))
+		return _server_ptrace_check_errno (inferior);
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_kill (ServerHandle *handle)
+{
+	if (ptrace (PTRACE_KILL, handle->inferior->pid, NULL, 0))
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+
+	return COMMAND_ERROR_NONE;
+}
+
+GStaticMutex wait_mutex = G_STATIC_MUTEX_INIT;
+GStaticMutex wait_mutex_2 = G_STATIC_MUTEX_INIT;
+GStaticMutex wait_mutex_3 = G_STATIC_MUTEX_INIT;
+
+static int
+do_wait (int pid, guint32 *status, gboolean nohang)
+{
+	int ret, flags;
+
+#if DEBUG_WAIT
+	g_message (G_STRLOC ": do_wait (%d%s)", pid, nohang ? ",nohang" : "");
+#endif
+	flags = WUNTRACED | __WALL | __WCLONE;
+	if (nohang)
+		flags |= WNOHANG;
+	ret = waitpid (pid, status, flags);
+#if DEBUG_WAIT
+	g_message (G_STRLOC ": do_wait (%d) finished: %d - %x", pid, ret, *status);
+#endif
+	if (ret < 0) {
+		if (errno == EINTR)
+			return 0;
+		else if (errno == ECHILD)
+			return -1;
+		g_warning (G_STRLOC ": Can't waitpid for %d: %s", pid, g_strerror (errno));
+		return -1;
+	}
+
+	return ret;
+}
+
+static int stop_requested = 0;
+static int stop_status = 0;
+
+static guint32
+server_ptrace_global_wait (guint32 *status_ret)
+{
+	int ret, status;
+
+ again:
+	g_static_mutex_lock (&wait_mutex);
+	ret = do_wait (-1, &status, FALSE);
+	if (ret <= 0)
+		goto out;
+
+#if DEBUG_WAIT
+	g_message (G_STRLOC ": global wait finished: %d - %x", ret, status);
+#endif
+
+	g_static_mutex_lock (&wait_mutex_2);
+
+#if DEBUG_WAIT
+	g_message (G_STRLOC ": global wait finished #1: %d - %x - %d",
+		   ret, status, stop_requested);
+#endif
+
+	if (ret == stop_requested) {
+		*status_ret = 0;
+		stop_status = status;
+		g_static_mutex_unlock (&wait_mutex_2);
+		g_static_mutex_unlock (&wait_mutex);
+
+		g_static_mutex_lock (&wait_mutex_3);
+		g_static_mutex_unlock (&wait_mutex_3);
+		goto again;
+	}
+	g_static_mutex_unlock (&wait_mutex_2);
+
+	*status_ret = status;
+ out:
+	g_static_mutex_unlock (&wait_mutex);
+	return ret;
+}
+
+static gboolean
+_server_ptrace_wait_for_new_thread (ServerHandle *handle)
+{
+	guint32 ret, status = 0;
+
+	/*
+	 * There is a race condition in the Linux kernel which shows up on >= 2.6.27:
+	 *
+	 * When creating a new thread, the initial stopping event of that thread is sometimes
+	 * sent before sending the `PTRACE_EVENT_CLONE' for it.
+	 *
+	 * Because of this, we wait here until the new thread has been stopped and ignore
+	 * any "early" stopping events.
+	 *
+	 * See also bugs #423518 and #466012.
+.	 *
+	 */
+
+	if (!g_static_mutex_trylock (&wait_mutex)) {
+		/* This should never happen, but let's not deadlock here. */
+		g_warning (G_STRLOC ": Can't lock mutex: %d", handle->inferior->pid);
+		return FALSE;
+	}
+
+	/*
+	 * We own the `wait_mutex', so no other thread is currently waiting for the target
+	 * and we can safely wait for it here.
+	 */
+
+	ret = waitpid (handle->inferior->pid, &status, WUNTRACED | __WALL | __WCLONE);
+
+	/*
+	 * Safety check: make sure we got the correct event.
+	 */
+
+	if ((ret != handle->inferior->pid) || !WIFSTOPPED (status) ||
+	    ((WSTOPSIG (status) != SIGSTOP) && (WSTOPSIG (status) != SIGTRAP))) {
+		g_warning (G_STRLOC ": Wait failed: %d, got pid %d, status %x", handle->inferior->pid, ret, status);
+		g_static_mutex_unlock (&wait_mutex);
+		return FALSE;
+	}
+
+	/*
+	 * Just as an extra safety check.
+	 */
+
+	if (x86_arch_get_registers (handle) != COMMAND_ERROR_NONE) {
+		g_static_mutex_unlock (&wait_mutex);
+		g_warning (G_STRLOC ": Failed to get registers: %d", handle->inferior->pid);
+		return FALSE;
+	}
+
+	g_static_mutex_unlock (&wait_mutex);
+	return TRUE;
+}
+
+static ServerCommandError
+server_ptrace_stop (ServerHandle *handle)
+{
+	ServerCommandError result;
+
+	/*
+	 * Try to get the thread's registers.  If we suceed, then it's already stopped
+	 * and still alive.
+	 */
+	result = x86_arch_get_registers (handle);
+	if (result == COMMAND_ERROR_NONE)
+		return COMMAND_ERROR_ALREADY_STOPPED;
+
+	if (syscall (__NR_tkill, handle->inferior->pid, SIGSTOP)) {
+		/*
+		 * It's already dead.
+		 */
+		if (errno == ESRCH)
+			return COMMAND_ERROR_NO_TARGET;
+		else
+			return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_stop_and_wait (ServerHandle *handle, guint32 *status)
+{
+	ServerCommandError result;
+	gboolean already_stopped = FALSE;
+	int ret;
+
+	/*
+	 * Try to get the thread's registers.  If we suceed, then it's already stopped
+	 * and still alive.
+	 */
+#if DEBUG_WAIT
+	g_message (G_STRLOC ": stop and wait %d", handle->inferior->pid);
+#endif
+	g_static_mutex_lock (&wait_mutex_2);
+	result = server_ptrace_stop (handle);
+	if (result == COMMAND_ERROR_ALREADY_STOPPED) {
+#if DEBUG_WAIT
+		g_message (G_STRLOC ": %d - already stopped", handle->inferior->pid);
+#endif
+		already_stopped = TRUE;
+	} else if (result != COMMAND_ERROR_NONE) {
+#if DEBUG_WAIT
+		g_message (G_STRLOC ": %d - cannot stop %d", handle->inferior->pid, result);
+#endif
+
+		g_static_mutex_unlock (&wait_mutex_2);
+		return result;
+	}
+
+	g_static_mutex_lock (&wait_mutex_3);
+
+	stop_requested = handle->inferior->pid;
+	g_static_mutex_unlock (&wait_mutex_2);
+
+#if DEBUG_WAIT
+	if (!already_stopped)
+		g_message (G_STRLOC ": %d - sent SIGSTOP", handle->inferior->pid);
+#endif
+
+	g_static_mutex_lock (&wait_mutex);
+#if DEBUG_WAIT
+	g_message (G_STRLOC ": %d - got stop status %x", handle->inferior->pid, stop_status);
+#endif
+	if (stop_status) {
+		*status = stop_status;
+		stop_requested = stop_status = 0;
+		g_static_mutex_unlock (&wait_mutex);
+		g_static_mutex_unlock (&wait_mutex_3);
+		return COMMAND_ERROR_NONE;
+	}
+
+	stop_requested = stop_status = 0;
+
+	do {
+#if DEBUG_WAIT
+		g_message (G_STRLOC ": %d - waiting", handle->inferior->pid);
+#endif
+		ret = do_wait (handle->inferior->pid, status, already_stopped);
+#if DEBUG_WAIT
+		g_message (G_STRLOC ": %d - done waiting %d, %x",
+			   handle->inferior->pid, ret, status);
+#endif
+	} while (ret == 0);
+	g_static_mutex_unlock (&wait_mutex);
+	g_static_mutex_unlock (&wait_mutex_3);
+
+	/*
+	 * Should never happen.
+	 */
+	if (ret < 0)
+		return COMMAND_ERROR_NO_TARGET;
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+_server_ptrace_setup_inferior (ServerHandle *handle)
+{
+	gchar *filename = g_strdup_printf ("/proc/%d/mem", handle->inferior->pid);
+
+	x86_arch_remove_hardware_breakpoints (handle);
+
+	handle->inferior->os.mem_fd = open64 (filename, O_RDONLY);
+
+	if (handle->inferior->os.mem_fd < 0) {
+		if (errno == EACCES)
+			return COMMAND_ERROR_PERMISSION_DENIED;
+
+		g_warning (G_STRLOC ": Can't open (%s): %s", filename, g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	g_free (filename);
+	return COMMAND_ERROR_NONE;
+}
+
+static void
+_server_ptrace_finalize_inferior (ServerHandle *handle)
+{
+	close (handle->inferior->os.mem_fd);
+	handle->inferior->os.mem_fd = -1;
+}
+
+static ServerCommandError
+server_ptrace_initialize_process (ServerHandle *handle)
+{
+	int flags = PTRACE_O_TRACECLONE | PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORK |
+		PTRACE_O_TRACEEXEC;
+
+	if (ptrace (PTRACE_SETOPTIONS, handle->inferior->pid, 0, flags)) {
+		g_warning (G_STRLOC ": Can't PTRACE_SETOPTIONS %d: %s",
+			   handle->inferior->pid, g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_get_signal_info (ServerHandle *handle, SignalInfo **sinfo_out)
+{
+	SignalInfo *sinfo = g_new0 (SignalInfo, 1);
+
+	sinfo->sigkill = SIGKILL;
+	sinfo->sigstop = SIGSTOP;
+	sinfo->sigint = SIGINT;
+	sinfo->sigchld = SIGCHLD;
+
+	sinfo->sigfpe = SIGFPE;
+	sinfo->sigquit = SIGQUIT;
+	sinfo->sigabrt = SIGABRT;
+	sinfo->sigsegv = SIGSEGV;
+	sinfo->sigill = SIGILL;
+	sinfo->sigbus = SIGBUS;
+	sinfo->sigwinch = SIGWINCH;
+
+	/* __SIGRTMIN is the hard limit from the kernel, SIGRTMIN is the first
+	 * user-visible real-time signal.  __SIGRTMIN and __SIGRTMIN+1 are used
+	 * internally by glibc. */
+	sinfo->kernel_sigrtmin = __SIGRTMIN;
+	sinfo->mono_thread_abort = mono_thread_get_abort_signal ();
+
+	*sinfo_out = sinfo;
+
+	return COMMAND_ERROR_NONE;
+}
+
+static void
+server_ptrace_global_init (void)
+{
+	stop_requested = 0;
+	stop_status = 0;
+}
+
+static ServerCommandError
+server_ptrace_get_threads (ServerHandle *handle, guint32 *count, guint32 **threads)
+{
+	gchar *dirname = g_strdup_printf ("/proc/%d/task", handle->inferior->pid);
+	const gchar *filename;
+	GPtrArray *array;
+	GDir *dir;
+	int i;
+
+	dir = g_dir_open (dirname, 0, NULL);
+	if (!dir) {
+		g_warning (G_STRLOC ": Can't get threads of %d", handle->inferior->pid);
+		g_free (dirname);
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	array = g_ptr_array_new ();
+
+	while ((filename = g_dir_read_name (dir)) != NULL) {
+		gchar *endptr;
+		guint32 pid;
+
+		pid = (guint32) strtol (filename, &endptr, 10);
+		if (*endptr)
+			goto out_error;
+
+		g_ptr_array_add (array, GUINT_TO_POINTER (pid));
+	}
+
+	*count = array->len;
+	*threads = g_new0 (guint32, array->len);
+
+	for (i = 0; i < array->len; i++)
+		(*threads) [i] = GPOINTER_TO_UINT (g_ptr_array_index (array, i));
+
+	g_free (dirname);
+	g_dir_close (dir);
+	g_ptr_array_free (array, FALSE);
+	return COMMAND_ERROR_NONE;
+
+ out_error:
+	g_free (dirname);
+	g_dir_close (dir);
+	g_ptr_array_free (array, FALSE);
+	g_warning (G_STRLOC ": Can't get threads of %d", handle->inferior->pid);
+	return COMMAND_ERROR_UNKNOWN_ERROR;
+}
+
+static ServerCommandError
+server_ptrace_get_application (ServerHandle *handle, gchar **exe_file, gchar **cwd,
+			       guint32 *nargs, gchar ***cmdline_args)
+{
+	gchar *exe_filename = g_strdup_printf ("/proc/%d/exe", handle->inferior->pid);
+	gchar *cwd_filename = g_strdup_printf ("/proc/%d/cwd", handle->inferior->pid);
+	gchar *cmdline_filename = g_strdup_printf ("/proc/%d/cmdline", handle->inferior->pid);
+	char buffer [BUFSIZ+1];
+	GPtrArray *array;
+	gchar *cmdline, **ptr;
+	gssize pos, len;
+	int i;
+
+	len = readlink (exe_filename, buffer, BUFSIZ);
+	if (len < 0) {
+		g_free (cwd_filename);
+		g_free (exe_filename);
+		g_free (cmdline_filename);
+
+		if (errno == EACCES)
+			return COMMAND_ERROR_PERMISSION_DENIED;
+
+		g_warning (G_STRLOC ": Can't get exe file of %d: %s", handle->inferior->pid,
+			   g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	buffer [len] = 0;
+	*exe_file = g_strdup (buffer);
+
+	len = readlink (cwd_filename, buffer, BUFSIZ);
+	if (len < 0) {
+		g_free (cwd_filename);
+		g_free (exe_filename);
+		g_free (cmdline_filename);
+		g_warning (G_STRLOC ": Can't get cwd of %d: %s", handle->inferior->pid,
+			   g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	buffer [len] = 0;
+	*cwd = g_strdup (buffer);
+
+	if (!g_file_get_contents (cmdline_filename, &cmdline, &len, NULL)) {
+		g_free (cwd_filename);
+		g_free (exe_filename);
+		g_free (cmdline_filename);
+		g_warning (G_STRLOC ": Can't get cmdline args of %d", handle->inferior->pid);
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	array = g_ptr_array_new ();
+
+	pos = 0;
+	while (pos < len) {
+		g_ptr_array_add (array, cmdline + pos);
+		pos += strlen (cmdline + pos) + 1;
+	}
+
+	*nargs = array->len;
+	*cmdline_args = ptr = g_new0 (gchar *, array->len + 1);
+
+	for (i = 0; i < array->len; i++)
+		ptr  [i] = g_ptr_array_index (array, i);
+
+	g_free (cwd_filename);
+	g_free (exe_filename);
+	g_free (cmdline_filename);
+	g_ptr_array_free (array, FALSE);
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_detach_after_fork (ServerHandle *handle)
+{
+	ServerCommandError result;
+	GPtrArray *breakpoints;
+	guint32 status;
+	int ret, i;
+
+	ret = waitpid (handle->inferior->pid, &status, WUNTRACED | WNOHANG | __WALL | __WCLONE);
+	if (ret < 0)
+		g_warning (G_STRLOC ": Can't waitpid for %d: %s", handle->inferior->pid, g_strerror (errno));
+
+	/*
+	 * Make sure we're stopped.
+	 */
+	if (x86_arch_get_registers (handle) != COMMAND_ERROR_NONE)
+		do_wait (handle->inferior->pid, &status, FALSE);
+
+	result = x86_arch_get_registers (handle);
+	if (result != COMMAND_ERROR_NONE)
+		return result;
+
+	mono_debugger_breakpoint_manager_lock ();
+
+	breakpoints = mono_debugger_breakpoint_manager_get_breakpoints (handle->bpm);
+	for (i = 0; i < breakpoints->len; i++) {
+		BreakpointInfo *info = g_ptr_array_index (breakpoints, i);
+
+		x86_arch_disable_breakpoint (handle, info);
+	}
+
+	mono_debugger_breakpoint_manager_unlock ();
+
+	if (ptrace (PT_DETACH, handle->inferior->pid, NULL, NULL) != 0)
+		return _server_ptrace_check_errno (handle->inferior);
+
+	return COMMAND_ERROR_NONE;
+}
diff --git a/sysdeps/server/x86-linux-ptrace.h b/backend/server/x86-linux-ptrace.h
similarity index 100%
rename from sysdeps/server/x86-linux-ptrace.h
rename to backend/server/x86-linux-ptrace.h
diff --git a/backend/server/x86-ptrace.c b/backend/server/x86-ptrace.c
new file mode 100644
index 0000000..5bf55a9
--- /dev/null
+++ b/backend/server/x86-ptrace.c
@@ -0,0 +1,702 @@
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <config.h>
+#include <server.h>
+#include <breakpoints.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <sys/stat.h>
+#include <sys/ptrace.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <sys/poll.h>
+#include <sys/select.h>
+#include <sys/resource.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include <mono/metadata/appdomain.h>
+#include <mono/metadata/object.h>
+
+/*
+ * NOTE:  The manpage is wrong about the POKE_* commands - the last argument
+ *        is the data (a word) to be written, not a pointer to it.
+ *
+ * In general, the ptrace(2) manpage is very bad, you should really read
+ * kernel/ptrace.c and arch/i386/kernel/ptrace.c in the Linux source code
+ * to get a better understanding for this stuff.
+ */
+
+#ifdef __linux__
+#include "x86-linux-ptrace.h"
+#endif
+
+#ifdef __FreeBSD__
+#include "x86-freebsd-ptrace.h"
+#endif
+
+#ifdef __MACH__
+#include "darwin-ptrace.h"
+#endif
+
+#include "x86-arch.h"
+
+struct IOThreadData
+{
+	int output_fd, error_fd;
+};
+
+MonoRuntimeInfo *
+mono_debugger_server_initialize_mono_runtime (guint32 address_size,
+					      guint64 notification_address,
+					      guint64 executable_code_buffer,
+					      guint32 executable_code_buffer_size,
+					      guint64 breakpoint_info_area,
+					      guint64 breakpoint_table,
+					      guint32 breakpoint_table_size)
+{
+	MonoRuntimeInfo *runtime = g_new0 (MonoRuntimeInfo, 1);
+
+	runtime->address_size = address_size;
+	runtime->notification_address = notification_address;
+	runtime->executable_code_buffer = executable_code_buffer;
+	runtime->executable_code_buffer_size = executable_code_buffer_size;
+	runtime->executable_code_chunk_size = EXECUTABLE_CODE_CHUNK_SIZE;
+	runtime->executable_code_total_chunks = executable_code_buffer_size / EXECUTABLE_CODE_CHUNK_SIZE;
+
+	runtime->breakpoint_info_area = breakpoint_info_area;
+	runtime->breakpoint_table = breakpoint_table;
+	runtime->breakpoint_table_size = breakpoint_table_size;
+
+	runtime->breakpoint_table_bitfield = g_malloc0 (breakpoint_table_size);
+	runtime->executable_code_bitfield = g_malloc0 (runtime->executable_code_total_chunks);
+
+	return runtime;
+}
+
+void
+mono_debugger_server_initialize_code_buffer (MonoRuntimeInfo *runtime,
+					     guint64 executable_code_buffer,
+					     guint32 executable_code_buffer_size)
+{
+	runtime->executable_code_buffer = executable_code_buffer;
+	runtime->executable_code_buffer_size = executable_code_buffer_size;
+	runtime->executable_code_chunk_size = EXECUTABLE_CODE_CHUNK_SIZE;
+	runtime->executable_code_total_chunks = executable_code_buffer_size / EXECUTABLE_CODE_CHUNK_SIZE;
+}
+
+void
+mono_debugger_server_finalize_mono_runtime (MonoRuntimeInfo *runtime)
+{
+	runtime->executable_code_buffer = 0;
+}
+
+static void
+server_ptrace_finalize (ServerHandle *handle)
+{
+	x86_arch_finalize (handle->arch);
+
+	_server_ptrace_finalize_inferior (handle);
+
+	g_free (handle->inferior);
+	g_free (handle);
+}
+
+#ifndef __MACH__
+#endif
+
+static ServerCommandError
+server_ptrace_resume (ServerHandle *handle)
+{
+	InferiorHandle *inferior = handle->inferior;
+	if (inferior->stepping)
+		return server_ptrace_step (handle);
+	else
+		return server_ptrace_continue (handle);
+}
+
+static ServerCommandError
+server_ptrace_detach (ServerHandle *handle)
+{
+	InferiorHandle *inferior = handle->inferior;
+
+	if (ptrace (PT_DETACH, inferior->pid, NULL, 0)) {
+		g_message (G_STRLOC ": %d - %s", inferior->pid, g_strerror (errno));
+		return COMMAND_ERROR_UNKNOWN_ERROR;
+	}
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_peek_word (ServerHandle *handle, guint64 start, guint64 *retval)
+{
+	return server_ptrace_read_memory (handle, start, sizeof (gsize), retval);
+}
+
+static ServerStatusMessageType
+server_ptrace_dispatch_event (ServerHandle *handle, guint32 status, guint64 *arg,
+			      guint64 *data1, guint64 *data2, guint32 *opt_data_size,
+			      gpointer *opt_data)
+{
+	#ifdef PTRACE_EVENT_CLONE
+	if (status >> 16) {
+		switch (status >> 16) {
+		case PTRACE_EVENT_CLONE: {
+			int new_pid;
+
+			if (ptrace (PTRACE_GETEVENTMSG, handle->inferior->pid, 0, &new_pid)) {
+				g_warning (G_STRLOC ": %d - %s", handle->inferior->pid,
+					   g_strerror (errno));
+				return FALSE;
+			}
+
+			*arg = new_pid;
+			return MESSAGE_CHILD_CREATED_THREAD;
+		}
+
+		case PTRACE_EVENT_FORK: {
+			int new_pid;
+
+			if (ptrace (PTRACE_GETEVENTMSG, handle->inferior->pid, 0, &new_pid)) {
+				g_warning (G_STRLOC ": %d - %s", handle->inferior->pid,
+					   g_strerror (errno));
+				return FALSE;
+			}
+
+			*arg = new_pid;
+			return MESSAGE_CHILD_FORKED;
+		}
+
+		case PTRACE_EVENT_EXEC:
+			return MESSAGE_CHILD_EXECD;
+
+		case PTRACE_EVENT_EXIT: {
+			int exitcode;
+
+			if (ptrace (PTRACE_GETEVENTMSG, handle->inferior->pid, 0, &exitcode)) {
+				g_warning (G_STRLOC ": %d - %s", handle->inferior->pid,
+					   g_strerror (errno));
+				return FALSE;
+			}
+
+			*arg = 0;
+			return MESSAGE_CHILD_CALLED_EXIT;
+		}
+
+		default:
+			g_warning (G_STRLOC ": Received unknown wait result %x on child %d",
+				   status, handle->inferior->pid);
+			return MESSAGE_UNKNOWN_ERROR;
+		}
+	}
+	#endif
+
+	if (WIFSTOPPED (status)) {
+#if __MACH__
+		handle->inferior->os.wants_to_run = FALSE;
+#endif
+		guint64 callback_arg, retval, retval2;
+		ChildStoppedAction action;
+		int stopsig;
+
+		stopsig = WSTOPSIG (status);
+		if (stopsig == SIGCONT)
+			stopsig = 0;
+
+		action = x86_arch_child_stopped (
+			handle, stopsig, &callback_arg, &retval, &retval2, opt_data_size, opt_data);
+
+		if (action != STOP_ACTION_STOPPED)
+			handle->inferior->last_signal = 0;
+
+		switch (action) {
+		case STOP_ACTION_STOPPED:
+			if (stopsig == SIGTRAP) {
+				handle->inferior->last_signal = 0;
+				*arg = 0;
+			} else {
+				handle->inferior->last_signal = stopsig;
+				*arg = stopsig;
+			}
+			return MESSAGE_CHILD_STOPPED;
+
+		case STOP_ACTION_INTERRUPTED:
+			*arg = 0;
+			return MESSAGE_CHILD_INTERRUPTED;
+
+		case STOP_ACTION_BREAKPOINT_HIT:
+			*arg = (int) retval;
+			return MESSAGE_CHILD_HIT_BREAKPOINT;
+
+		case STOP_ACTION_CALLBACK:
+			*arg = callback_arg;
+			*data1 = retval;
+			*data2 = retval2;
+			return MESSAGE_CHILD_CALLBACK;
+
+		case STOP_ACTION_CALLBACK_COMPLETED:
+			*arg = callback_arg;
+			*data1 = retval;
+			*data2 = retval2;
+			return MESSAGE_CHILD_CALLBACK_COMPLETED;
+
+		case STOP_ACTION_NOTIFICATION:
+			*arg = callback_arg;
+			*data1 = retval;
+			*data2 = retval2;
+			return MESSAGE_CHILD_NOTIFICATION;
+
+		case STOP_ACTION_RTI_DONE:
+			*arg = callback_arg;
+			*data1 = retval;
+			*data2 = retval2;
+			return MESSAGE_RUNTIME_INVOKE_DONE;
+
+		case STOP_ACTION_INTERNAL_ERROR:
+			return MESSAGE_INTERNAL_ERROR;
+		}
+
+		g_assert_not_reached ();
+	} else if (WIFEXITED (status)) {
+		*arg = WEXITSTATUS (status);
+		return MESSAGE_CHILD_EXITED;
+	} else if (WIFSIGNALED (status)) {
+		if ((WTERMSIG (status) == SIGTRAP) || (WTERMSIG (status) == SIGKILL)) {
+			*arg = 0;
+			return MESSAGE_CHILD_EXITED;
+		} else {
+			*arg = WTERMSIG (status);
+			return MESSAGE_CHILD_SIGNALED;
+		}
+	}
+
+	g_warning (G_STRLOC ": Got unknown waitpid() result: %x", status);
+	return MESSAGE_UNKNOWN_ERROR;
+}
+
+static ServerStatusMessageType
+server_ptrace_dispatch_simple (guint32 status, guint32 *arg)
+{
+	if (status >> 16)
+		return MESSAGE_UNKNOWN_ERROR;
+
+	if (WIFSTOPPED (status)) {
+		int stopsig = WSTOPSIG (status);
+
+		if ((stopsig == SIGSTOP) || (stopsig == SIGTRAP))
+			stopsig = 0;
+
+		*arg = stopsig;
+		return MESSAGE_CHILD_STOPPED;
+	} else if (WIFEXITED (status)) {
+		*arg = WEXITSTATUS (status);
+		return MESSAGE_CHILD_EXITED;
+	} else if (WIFSIGNALED (status)) {
+		if ((WTERMSIG (status) == SIGTRAP) || (WTERMSIG (status) == SIGKILL)) {
+			*arg = 0;
+			return MESSAGE_CHILD_EXITED;
+		} else {
+			*arg = WTERMSIG (status);
+			return MESSAGE_CHILD_SIGNALED;
+		}
+	}
+
+	return MESSAGE_UNKNOWN_ERROR;
+}
+
+
+static ServerHandle *
+server_ptrace_create_inferior (BreakpointManager *bpm)
+{
+	ServerHandle *handle = g_new0 (ServerHandle, 1);
+
+	if ((getuid () == 0) || (geteuid () == 0)) {
+		g_message ("WARNING: Running mdb as root may be a problem because setuid() and\n"
+			   "seteuid() do nothing.\n"
+			   "See http://primates.ximian.com/~martin/blog/entry_150.html for details.");
+	}
+
+	handle->bpm = bpm;
+	handle->inferior = g_new0 (InferiorHandle, 1);
+	handle->arch = x86_arch_initialize ();
+
+	return handle;
+}
+
+static void
+child_setup_func (InferiorHandle *inferior)
+{
+	if (ptrace (PT_TRACE_ME, getpid (), NULL, 0))
+		g_error (G_STRLOC ": Can't PT_TRACEME: %s", g_strerror (errno));
+
+	if (inferior->redirect_fds) {
+		dup2 (inferior->output_fd[1], 1);
+		dup2 (inferior->error_fd[1], 2);
+	}
+}
+
+static ServerCommandError
+server_ptrace_spawn (ServerHandle *handle, const gchar *working_directory,
+		     const gchar **argv, const gchar **envp, gboolean redirect_fds,
+		     gint *child_pid, IOThreadData **io_data, gchar **error)
+{	
+	InferiorHandle *inferior = handle->inferior;
+	int fd[2], ret, len, i;
+	ServerCommandError result;
+
+	*error = NULL;
+	inferior->redirect_fds = redirect_fds;
+
+	if (redirect_fds) {
+		pipe (inferior->output_fd);
+		pipe (inferior->error_fd);
+
+		*io_data = g_new0 (IOThreadData, 1);
+		(*io_data)->output_fd = inferior->output_fd[0];
+		(*io_data)->error_fd = inferior->error_fd[0];
+	} else {
+		*io_data = NULL;
+	}
+
+	pipe (fd);
+
+	*child_pid = fork ();
+	if (*child_pid == 0) {
+		gchar *error_message;
+		struct rlimit core_limit;
+		int open_max;
+
+		open_max = sysconf (_SC_OPEN_MAX);
+		for (i = 3; i < open_max; i++)
+			fcntl (i, F_SETFD, FD_CLOEXEC);
+
+		setsid ();
+
+		getrlimit (RLIMIT_CORE, &core_limit);
+		core_limit.rlim_cur = 0;
+		setrlimit (RLIMIT_CORE, &core_limit);
+
+		child_setup_func (inferior);
+		execve (argv [0], (char **) argv, (char **) envp);
+
+		error_message = g_strdup_printf ("Cannot exec `%s': %s", argv [0], g_strerror (errno));
+		len = strlen (error_message) + 1;
+		write (fd [1], &len, sizeof (len));
+		write (fd [1], error_message, len);
+		_exit (1);
+	} else if (*child_pid < 0) {
+		if (redirect_fds) {
+			close (inferior->output_fd[0]);
+			close (inferior->output_fd[1]);
+			close (inferior->error_fd[0]);
+			close (inferior->error_fd[1]);
+		}
+		close (fd [0]);
+		close (fd [1]);
+
+		*error = g_strdup_printf ("fork() failed: %s", g_strerror (errno));
+		return COMMAND_ERROR_CANNOT_START_TARGET;
+	}
+
+	if (redirect_fds) {
+		close (inferior->output_fd[1]);
+		close (inferior->error_fd[1]);
+	}
+	close (fd [1]);
+
+	ret = read (fd [0], &len, sizeof (len));
+
+	if (ret != 0) {
+		g_assert (ret == 4);
+
+		*error = g_malloc0 (len);
+		read (fd [0], *error, len);
+		close (fd [0]);
+		if (redirect_fds) {
+			close (inferior->output_fd[0]);
+			close (inferior->error_fd[0]);
+		}
+		return COMMAND_ERROR_CANNOT_START_TARGET;
+	}
+
+	close (fd [0]);
+
+	inferior->pid = *child_pid;
+
+#ifndef __MACH__
+	if (!_server_ptrace_wait_for_new_thread (handle))
+		return COMMAND_ERROR_INTERNAL_ERROR;
+#endif
+
+	result = _server_ptrace_setup_inferior (handle);
+	if (result != COMMAND_ERROR_NONE) {
+		if (redirect_fds) {
+			close (inferior->output_fd[0]);
+			close (inferior->error_fd[0]);
+		}
+		return result;
+	}
+
+#ifdef __MACH__
+	*child_pid = COMPOSED_PID(inferior->pid, inferior->os.thread_index);
+#endif
+
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_initialize_thread (ServerHandle *handle, guint32 pid, gboolean wait)
+{
+	InferiorHandle *inferior = handle->inferior;
+
+	inferior->is_thread = TRUE;
+
+#ifdef __MACH__
+	inferior->pid = GET_PID(pid);
+	inferior->os.thread = get_thread_from_index(GET_THREAD_INDEX(pid));
+#else
+	inferior->pid = pid;
+	if (wait && !_server_ptrace_wait_for_new_thread (handle))
+		return COMMAND_ERROR_INTERNAL_ERROR;
+#endif
+
+	return _server_ptrace_setup_inferior (handle);
+}
+
+static ServerCommandError
+server_ptrace_attach (ServerHandle *handle, guint32 pid)
+{
+	InferiorHandle *inferior = handle->inferior;
+
+	if (ptrace (PT_ATTACH, pid, NULL, 0) != 0) {
+		g_warning (G_STRLOC ": Can't attach to %d - %s", pid,
+			   g_strerror (errno));
+		return COMMAND_ERROR_CANNOT_START_TARGET;
+	}
+
+	inferior->pid = pid;
+	inferior->is_thread = TRUE;
+
+#ifndef __MACH__
+	if (!_server_ptrace_wait_for_new_thread (handle))
+		return COMMAND_ERROR_INTERNAL_ERROR;
+#endif
+
+	return _server_ptrace_setup_inferior (handle);
+}
+
+static void
+process_output (int fd, gboolean is_stderr, ChildOutputFunc func)
+{
+	char buffer [BUFSIZ + 2];
+	int count;
+
+	count = read (fd, buffer, BUFSIZ);
+	if (count < 0)
+		return;
+
+	buffer [count] = 0;
+	func (is_stderr, buffer);
+}
+
+void
+server_ptrace_io_thread_main (IOThreadData *io_data, ChildOutputFunc func)
+{
+	struct pollfd fds [2];
+	int ret;
+
+	fds [0].fd = io_data->output_fd;
+	fds [0].events = POLLIN | POLLHUP | POLLERR;
+	fds [0].revents = 0;
+	fds [1].fd = io_data->error_fd;
+	fds [1].events = POLLIN | POLLHUP | POLLERR;
+	fds [1].revents = 0;
+
+	while (1) {
+		ret = poll (fds, 2, -1);
+
+		if ((ret < 0) && (errno != EINTR))
+			break;
+
+		if (fds [0].revents & POLLIN)
+			process_output (io_data->output_fd, FALSE, func);
+		if (fds [1].revents & POLLIN)
+			process_output (io_data->error_fd, TRUE, func);
+
+		if ((fds [0].revents & (POLLHUP | POLLERR))
+		    || (fds [1].revents & (POLLHUP | POLLERR)))
+			break;
+	}
+
+	close (io_data->output_fd);
+	close (io_data->error_fd);
+	g_free (io_data);
+}
+
+static ServerCommandError
+server_ptrace_set_signal (ServerHandle *handle, guint32 sig, guint32 send_it)
+{
+	if (send_it)
+		kill (handle->inferior->pid, sig);
+	else
+		handle->inferior->last_signal = sig;
+	return COMMAND_ERROR_NONE;
+}
+
+static ServerCommandError
+server_ptrace_get_pending_signal (ServerHandle *handle, guint32 *signal)
+{
+	*signal = handle->inferior->last_signal;
+	return COMMAND_ERROR_NONE;
+}
+
+static void
+server_ptrace_set_runtime_info (ServerHandle *handle, MonoRuntimeInfo *mono_runtime)
+{
+	handle->mono_runtime = mono_runtime;
+}
+
+static guint32
+server_ptrace_get_current_pid (void)
+{
+	return getpid ();
+}
+
+static guint64
+server_ptrace_get_current_thread (void)
+{
+	return pthread_self ();
+}
+
+static gboolean initialized = FALSE;
+int pending_sigint = 0;
+
+static void
+sigint_signal_handler (int _dummy)
+{
+	pending_sigint++;
+	server_ptrace_sem_post ();
+}
+
+static void
+server_ptrace_static_init (void)
+{
+	struct sigaction sa;
+
+	if (initialized)
+		return;
+
+	/* catch SIGINT */
+	sa.sa_handler = sigint_signal_handler;
+	sigemptyset (&sa.sa_mask);
+	sa.sa_flags = 0;
+	g_assert (sigaction (SIGINT, &sa, NULL) != -1);
+
+	initialized = TRUE;
+}
+
+static int
+server_ptrace_get_pending_sigint (void)
+{
+	if (pending_sigint > 0)
+		return pending_sigint--;
+
+	return 0;
+}
+
+extern void GC_start_blocking (void);
+extern void GC_end_blocking (void);
+
+#ifdef __linux__
+#include "x86-linux-ptrace.c"
+#endif
+
+#ifdef __FreeBSD__
+#include "x86-freebsd-ptrace.c"
+#endif
+
+#ifdef __MACH__
+#include "darwin-ptrace.c"
+#endif
+
+#if defined(__i386__)
+#include "i386-arch.c"
+#elif defined(__x86_64__)
+#include "x86_64-arch.c"
+#else
+#error "Unknown architecture"
+#endif
+
+InferiorVTable i386_ptrace_inferior = {
+	server_ptrace_static_init,
+	server_ptrace_global_init,
+	server_ptrace_get_server_type,
+	server_ptrace_get_capabilities,
+	server_ptrace_create_inferior,
+	server_ptrace_initialize_process,
+	server_ptrace_initialize_thread,
+	server_ptrace_set_runtime_info,
+	server_ptrace_io_thread_main,
+	server_ptrace_spawn,
+	server_ptrace_attach,
+	server_ptrace_detach,
+	server_ptrace_finalize,
+	server_ptrace_global_wait,
+	server_ptrace_stop_and_wait,
+	server_ptrace_dispatch_event,
+	server_ptrace_dispatch_simple,
+	server_ptrace_get_target_info,
+	server_ptrace_continue,
+	server_ptrace_step,
+	server_ptrace_resume,
+	server_ptrace_get_frame,
+	server_ptrace_current_insn_is_bpt,
+	server_ptrace_peek_word,
+	server_ptrace_read_memory,
+	server_ptrace_write_memory,
+	server_ptrace_call_method,
+	server_ptrace_call_method_1,
+	server_ptrace_call_method_2,
+	server_ptrace_call_method_3,
+	server_ptrace_call_method_invoke,
+	server_ptrace_execute_instruction,
+	server_ptrace_mark_rti_frame,
+	server_ptrace_abort_invoke,
+	server_ptrace_insert_breakpoint,
+	server_ptrace_insert_hw_breakpoint,
+	server_ptrace_remove_breakpoint,
+	server_ptrace_enable_breakpoint,
+	server_ptrace_disable_breakpoint,
+	server_ptrace_get_breakpoints,
+	server_ptrace_get_registers,
+	server_ptrace_set_registers,
+	server_ptrace_stop,
+	server_ptrace_set_signal,
+	server_ptrace_get_pending_signal,
+	server_ptrace_kill,
+	server_ptrace_get_signal_info,
+	server_ptrace_get_threads,
+	server_ptrace_get_application,
+	server_ptrace_detach_after_fork,
+	server_ptrace_push_registers,
+	server_ptrace_pop_registers,
+	server_ptrace_get_callback_frame,
+	server_ptrace_restart_notification,
+	server_ptrace_get_registers_from_core_file,
+	server_ptrace_get_current_pid,
+	server_ptrace_get_current_thread,
+	server_ptrace_sem_init,
+	server_ptrace_sem_wait,
+	server_ptrace_sem_post,
+	server_ptrace_sem_get_value,
+	server_ptrace_get_pending_sigint,
+};
diff --git a/backend/server/x86-ptrace.h b/backend/server/x86-ptrace.h
new file mode 100644
index 0000000..5b901db
--- /dev/null
+++ b/backend/server/x86-ptrace.h
@@ -0,0 +1,125 @@
+#ifndef __MONO_DEBUGGER_X86_64_PTRACE_H__
+#define __MONO_DEBUGGER_X86_64_PTRACE_H__
+
+typedef struct OSData OSData;
+
+struct InferiorHandle
+{
+	OSData os;
+
+	guint32 pid;
+	int stepping;
+	int last_signal;
+	int redirect_fds;
+	int output_fd [2], error_fd [2];
+	int is_thread;
+};
+
+#ifndef PTRACE_SETOPTIONS
+#define PTRACE_SETOPTIONS	0x4200
+#endif
+#ifndef PTRACE_GETEVENTMSG
+#define PTRACE_GETEVENTMSG	0x4201
+#endif
+
+#ifndef PTRACE_EVENT_FORK
+
+/* options set using PTRACE_SETOPTIONS */
+#define PTRACE_O_TRACESYSGOOD	0x00000001
+#define PTRACE_O_TRACEFORK	0x00000002
+#define PTRACE_O_TRACEVFORK	0x00000004
+#define PTRACE_O_TRACECLONE	0x00000008
+#define PTRACE_O_TRACEEXEC	0x00000010
+#define PTRACE_O_TRACEVFORKDONE	0x00000020
+#define PTRACE_O_TRACEEXIT	0x00000040
+
+/* Wait extended result codes for the above trace options.  */
+#define PTRACE_EVENT_FORK	1
+#define PTRACE_EVENT_VFORK	2
+#define PTRACE_EVENT_CLONE	3
+#define PTRACE_EVENT_EXEC	4
+#define PTRACE_EVENT_VFORKDONE	5
+#define PTRACE_EVENT_EXIT	6
+
+#endif /* PTRACE_EVENT_FORK */
+
+extern int pending_sigint;
+
+static ServerCommandError
+_server_ptrace_check_errno (InferiorHandle *);
+
+static ServerCommandError
+_server_ptrace_make_memory_executable (ServerHandle *handle, guint64 start, guint32 size);
+
+static ServerCommandError
+_server_ptrace_get_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs);
+
+static ServerCommandError
+_server_ptrace_set_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs);
+
+static ServerCommandError
+_server_ptrace_get_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs);
+
+static ServerCommandError
+_server_ptrace_set_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs);
+
+static ServerCommandError
+_server_ptrace_read_memory (ServerHandle *handle, guint64 start,
+			    guint32 size, gpointer buffer);
+
+static ServerCommandError
+server_ptrace_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer buffer);
+
+static ServerCommandError
+server_ptrace_write_memory (ServerHandle *handle, guint64 start,
+			    guint32 size, gconstpointer buffer);
+
+static ServerCommandError
+server_ptrace_poke_word (ServerHandle *handle, guint64 addr, gsize value);
+
+static ServerCommandError
+_server_ptrace_set_dr (InferiorHandle *handle, int regnum, guint64 value);
+
+static ServerCommandError
+_server_ptrace_get_dr (InferiorHandle *handle, int regnum, guint64 *value);
+
+static ServerCommandError
+server_ptrace_continue (ServerHandle *handle);
+
+static ServerCommandError
+server_ptrace_step (ServerHandle *handle);
+
+static ServerCommandError
+server_ptrace_kill (ServerHandle *handle);
+
+static ServerCommandError
+server_ptrace_stop (ServerHandle *handle);
+
+static ServerCommandError
+server_ptrace_stop_and_wait (ServerHandle *handle, guint32 *status);
+
+static ServerCommandError
+_server_ptrace_setup_inferior (ServerHandle *handle);
+
+static void
+_server_ptrace_finalize_inferior (ServerHandle *handle);
+
+static ServerCommandError
+server_ptrace_get_signal_info (ServerHandle *handle, SignalInfo **sinfo);
+
+static gboolean
+_server_ptrace_wait_for_new_thread (ServerHandle *handle);
+
+static void
+server_ptrace_sem_init (void);
+
+static void
+server_ptrace_sem_wait (void);
+
+static void
+server_ptrace_sem_post (void);
+
+static int
+server_ptrace_sem_get_value (void);
+
+#endif
diff --git a/sysdeps/server/x86_64-arch.c b/backend/server/x86_64-arch.c
similarity index 100%
rename from sysdeps/server/x86_64-arch.c
rename to backend/server/x86_64-arch.c
diff --git a/sysdeps/server/x86_64-arch.h b/backend/server/x86_64-arch.h
similarity index 100%
rename from sysdeps/server/x86_64-arch.h
rename to backend/server/x86_64-arch.h
diff --git a/build/AssemblyInfo.cs.in b/build/AssemblyInfo.cs.in
index 41f1dfc..bbb7f4f 100644
--- a/build/AssemblyInfo.cs.in
+++ b/build/AssemblyInfo.cs.in
@@ -10,6 +10,11 @@ using System.Runtime.CompilerServices;
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]		
 
+[assembly: Mono.About("Distributed under the GPL")]
+
+[assembly: Mono.Author("Martin Baulig")]
+[assembly: Mono.Author("Miguel de Icaza")]
+
 [assembly: AssemblyVersion("1.0.0.0")]
 
 namespace Mono.Debugger
diff --git a/build/Makefile.am b/build/Makefile.am
index e185050..3454bff 100644
--- a/build/Makefile.am
+++ b/build/Makefile.am
@@ -6,10 +6,6 @@ two_SCRIPTS = mdb.exe mdb-symbolreader.exe
 
 MCS_FLAGS = -debug -define:DEBUG -define:DEBUGGER_SOURCE -nowarn:0169,0067
 
-if MONO_TRUNK
-MCS_FLAGS += -define:MONO_TRUNK
-endif
-
 if MARTIN_PRIVATE
 # Enable some more stuff for me.
 if ATTACHING_SUPPORTED
@@ -53,13 +49,15 @@ MDB_SRCLIST = \
 	$(top_srcdir)/frontend/DebuggerTextWriter.cs	\
 	$(top_srcdir)/frontend/Expression.cs		\
 	$(top_srcdir)/frontend/ExpressionParser.cs	\
+	$(top_srcdir)/frontend/GnuReadLine.cs		\
 	$(top_srcdir)/frontend/Interpreter.cs		\
+	$(top_srcdir)/frontend/LineReader.cs		\
 	$(top_srcdir)/frontend/Main.cs			\
+	$(top_srcdir)/frontend/ManagedReadLine.cs	\
 	$(top_srcdir)/frontend/MyTextReader.cs		\
 	$(top_srcdir)/frontend/ScriptingContext.cs	\
 	$(top_srcdir)/frontend/Style.cs			\
 	$(top_srcdir)/frontend/ObjectFormatter.cs	\
-	$(top_srcdir)/frontend/getline.cs		\
 	$(LANGUAGE_SPECIFIC_FILES)			\
 	AssemblyInfo.cs
 
@@ -97,6 +95,7 @@ TEST_FRAMEWORK_SRCLIST = \
 	AssemblyInfo.cs
 
 TEST_FRAMEWORK_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Debugger.dll				\
 	-r:./Mono.Debugger.Frontend.dll			\
 	-r:System.Runtime.Remoting			\
@@ -116,20 +115,25 @@ TEST_CASE_EXELIST = \
 	$(top_builddir)/test/src/*.dll
 
 SYMBOL_WRITER_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Cecil.dll
 
 SYMBOL_READER_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Cecil.dll
 
 DEBUGGER_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:Mono.Debugger.SymbolWriter			\
 	-r:System.Runtime.Serialization.Formatters.Soap	\
 	-r:./Mono.Cecil.dll
 
 MDB_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Debugger.dll
 
 TEST_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Debugger.dll				\
 	-r:./Mono.Debugger.Frontend.dll			\
 	-r:./Mono.Debugger.Test.Framework.dll		\
@@ -164,7 +168,7 @@ Mono.Debugger.Frontend.dll: Makefile $(MDB_SRCLIST) Mono.Debugger.dll
 Mono.Debugger.Test.Framework.dll: Makefile $(TEST_FRAMEWORK_SRCLIST) Mono.Debugger.dll Mono.Debugger.Frontend.dll
 	$(MCS) -target:library -out:Mono.Debugger.Test.Framework.dll $(MCS_FLAGS) -keyfile:$(top_srcdir)/build/mono.snk $(TEST_FRAMEWORK_DEPS) $(TEST_FRAMEWORK_SRCLIST)
 
-Mono.Debugger.Test.dll: Makefile $(TEST_SRCLIST) Mono.Debugger.dll Mono.Debugger.Frontend.dll Mono.Debugger.Test.Framework.dll
+Mono.Debugger.Test.dll: Makefile $(TEST_SRCLIST) Mono.Debugger.dll Mono.Debugger.Frontend.dll
 	$(MCS) -target:library -out:Mono.Debugger.Test.dll $(MCS_FLAGS) -keyfile:$(top_srcdir)/build/mono.snk $(TEST_DEPS) $(TEST_SRCLIST)
 
 Mono.Cecil.dll:
diff --git a/build/Makefile.in b/build/Makefile.in
index 4c43fc5..ea6b349 100644
--- a/build/Makefile.in
+++ b/build/Makefile.in
@@ -35,10 +35,9 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 target_triplet = @target@
- at MONO_TRUNK_TRUE@am__append_1 = -define:MONO_TRUNK
- at HAVE_XSP_TRUE@am__append_2 = -define:HAVE_XSP
+ at HAVE_XSP_TRUE@am__append_1 = -define:HAVE_XSP
 noinst_PROGRAMS = ulimit-check$(EXEEXT)
- at MARTIN_PRIVATE_TRUE@am__append_3 = -define:MARTIN_PRIVATE
+ at MARTIN_PRIVATE_TRUE@am__append_2 = -define:MARTIN_PRIVATE
 subdir = build
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
 	$(srcdir)/Mono.Debugger.dll.config.in
@@ -148,6 +147,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
@@ -230,8 +230,7 @@ twodir = $(prefix)/lib/mono/2.0
 bin_SCRIPTS = mdb mdb-symbolreader
 two_SCRIPTS = mdb.exe mdb-symbolreader.exe
 MCS_FLAGS = -debug -define:DEBUG -define:DEBUGGER_SOURCE \
-	-nowarn:0169,0067 $(am__append_1) $(am__append_2) \
-	$(am__append_3)
+	-nowarn:0169,0067 $(am__append_1) $(am__append_2)
 @ATTACHING_SUPPORTED_FALSE@@MARTIN_PRIVATE_FALSE at EXCLUDED_TESTS = NotWorking,Attach,Native,Threads,AppDomain,GUI
 @ATTACHING_SUPPORTED_FALSE@@MARTIN_PRIVATE_TRUE at EXCLUDED_TESTS = NotWorking,Attach
 # Exclude anything which may potentially break, only enable the
@@ -259,13 +258,15 @@ MDB_SRCLIST = \
 	$(top_srcdir)/frontend/DebuggerTextWriter.cs	\
 	$(top_srcdir)/frontend/Expression.cs		\
 	$(top_srcdir)/frontend/ExpressionParser.cs	\
+	$(top_srcdir)/frontend/GnuReadLine.cs		\
 	$(top_srcdir)/frontend/Interpreter.cs		\
+	$(top_srcdir)/frontend/LineReader.cs		\
 	$(top_srcdir)/frontend/Main.cs			\
+	$(top_srcdir)/frontend/ManagedReadLine.cs	\
 	$(top_srcdir)/frontend/MyTextReader.cs		\
 	$(top_srcdir)/frontend/ScriptingContext.cs	\
 	$(top_srcdir)/frontend/Style.cs			\
 	$(top_srcdir)/frontend/ObjectFormatter.cs	\
-	$(top_srcdir)/frontend/getline.cs		\
 	$(LANGUAGE_SPECIFIC_FILES)			\
 	AssemblyInfo.cs
 
@@ -303,6 +304,7 @@ TEST_FRAMEWORK_SRCLIST = \
 	AssemblyInfo.cs
 
 TEST_FRAMEWORK_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Debugger.dll				\
 	-r:./Mono.Debugger.Frontend.dll			\
 	-r:System.Runtime.Remoting			\
@@ -322,20 +324,25 @@ TEST_CASE_EXELIST = \
 	$(top_builddir)/test/src/*.dll
 
 SYMBOL_WRITER_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Cecil.dll
 
 SYMBOL_READER_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Cecil.dll
 
 DEBUGGER_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:Mono.Debugger.SymbolWriter			\
 	-r:System.Runtime.Serialization.Formatters.Soap	\
 	-r:./Mono.Cecil.dll
 
 MDB_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Debugger.dll
 
 TEST_DEPS = \
+	-r:Mono.GetOptions				\
 	-r:./Mono.Debugger.dll				\
 	-r:./Mono.Debugger.Frontend.dll			\
 	-r:./Mono.Debugger.Test.Framework.dll		\
@@ -683,7 +690,7 @@ Mono.Debugger.Frontend.dll: Makefile $(MDB_SRCLIST) Mono.Debugger.dll
 Mono.Debugger.Test.Framework.dll: Makefile $(TEST_FRAMEWORK_SRCLIST) Mono.Debugger.dll Mono.Debugger.Frontend.dll
 	$(MCS) -target:library -out:Mono.Debugger.Test.Framework.dll $(MCS_FLAGS) -keyfile:$(top_srcdir)/build/mono.snk $(TEST_FRAMEWORK_DEPS) $(TEST_FRAMEWORK_SRCLIST)
 
-Mono.Debugger.Test.dll: Makefile $(TEST_SRCLIST) Mono.Debugger.dll Mono.Debugger.Frontend.dll Mono.Debugger.Test.Framework.dll
+Mono.Debugger.Test.dll: Makefile $(TEST_SRCLIST) Mono.Debugger.dll Mono.Debugger.Frontend.dll
 	$(MCS) -target:library -out:Mono.Debugger.Test.dll $(MCS_FLAGS) -keyfile:$(top_srcdir)/build/mono.snk $(TEST_DEPS) $(TEST_SRCLIST)
 
 Mono.Cecil.dll:
diff --git a/build/mdb-symbolreader.in b/build/mdb-symbolreader.in
index 4c5262e..7138bd0 100644
--- a/build/mdb-symbolreader.in
+++ b/build/mdb-symbolreader.in
@@ -1,18 +1,3 @@
 #!/bin/sh
-
-Pathclean ()
-{
- # Vulnerability fix for insecure path content
- # Make sure "::", "^:" or ":$" is not left in path arg $1
-
- local tmp
- tmp=$(echo "$1" | sed -e 's/::\+// ; s/^:// ; s/:$//' )
-
- [ "$tmp" ] && echo "$tmp"
-}
-
-LD_LIBRARY_PATH="@libdir@${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
-LD_LIBRARY_PATH=$(Pathclean "$LD_LIBRARY_PATH")
-export LD_LIBRARY_PATH
-
-exec @mono@ --debug @twodir@/mdb-symbolreader.exe "$@"
+export LD_LIBRARY_PATH="@libdir@:${LD_LIBRARY_PATH}"
+exec @mono@ --debug @twodir@/mdb-symbolreader.exe $*
diff --git a/build/mdb.in b/build/mdb.in
index d384617..12da6c3 100644
--- a/build/mdb.in
+++ b/build/mdb.in
@@ -1,18 +1,3 @@
 #!/bin/sh
-
-Pathclean ()
-{
- # Vulnerability fix for insecure path content
- # Make sure "::", "^:" or ":$" is not left in path arg $1
-
- local tmp
- tmp=$(echo "$1" | sed -e 's/::\+// ; s/^:// ; s/:$//' )
-
- [ "$tmp" ] && echo "$tmp"
-}
-
-LD_LIBRARY_PATH="@libdir@${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
-LD_LIBRARY_PATH=$(Pathclean "$LD_LIBRARY_PATH")
-export LD_LIBRARY_PATH
-
-exec @mono@ --debug @twodir@/mdb.exe "$@"
+export LD_LIBRARY_PATH="@libdir@:${LD_LIBRARY_PATH}"
+exec @mono@ --debug @twodir@/mdb.exe $*
diff --git a/classes/Debugger.cs b/classes/Debugger.cs
index df6f23a..3ea2da3 100644
--- a/classes/Debugger.cs
+++ b/classes/Debugger.cs
@@ -20,41 +20,32 @@ namespace Mono.Debugger
 	public delegate void ThreadEventHandler (Debugger debugger, Thread thread);
 	public delegate void ProcessEventHandler (Debugger debugger, Process process);
 
-	public sealed class Debugger : DebuggerMarshalByRefObject
+	public class Debugger : DebuggerMarshalByRefObject
 	{
+#if USE_DOMAIN
+		AppDomain domain;
+#endif
+		DebuggerServant servant;
 		ManualResetEvent kill_event;
-		DebuggerConfiguration config;
-		ThreadManager thread_manager;
-		Hashtable process_hash;
-		Process main_process;
-		MyOperationHost operation_host;
-		bool alive;
 
 		public Debugger (DebuggerConfiguration config)
 		{
-			this.config = config;
-			this.alive = true;
-
-			ObjectCache.Initialize ();
-
 			kill_event = new ManualResetEvent (false);
 
-			thread_manager = new ThreadManager (this);
-			process_hash = Hashtable.Synchronized (new Hashtable ());
-			stopped_event = new ManualResetEvent (false);
-			operation_host = new MyOperationHost (this);
-		}
-
-		public DebuggerConfiguration Configuration {
-			get { return config; }
-		}
+#if USE_DOMAIN
+			domain = AppDomain.CreateDomain ("mdb");
 
-		internal IOperationHost OperationHost {
-			get { return operation_host; }
-		}
+			ObjectHandle oh = domain.CreateInstance (
+				Assembly.GetExecutingAssembly ().FullName,
+				typeof (DebuggerServant).FullName, false,
+				BindingFlags.Instance | BindingFlags.NonPublic,
+				null, new object [] { this, Report.ReportWriter, config },
+				null, null, null);
 
-		internal ThreadManager ThreadManager {
-			get { return thread_manager; }
+			servant = (DebuggerServant) oh.Unwrap ();
+#else
+			servant = new DebuggerServant (this, Report.ReportWriter, config);
+#endif
 		}
 
 		public event ThreadEventHandler ThreadCreatedEvent;
@@ -74,6 +65,11 @@ namespace Mono.Debugger
 		public event ThreadEventHandler EnterNestedBreakStateEvent;
 		public event ThreadEventHandler LeaveNestedBreakStateEvent;
 
+		internal Process CreateProcess (ProcessServant servant)
+		{
+			return new Process (this, servant);
+		}
+
 		internal Thread CreateThread (ThreadServant servant, int id)
 		{
 			return new Thread (servant, id);
@@ -81,34 +77,22 @@ namespace Mono.Debugger
 
 		internal void OnMainProcessCreatedEvent (Process process)
 		{
-			process_hash.Add (process, process);
 			if (MainProcessCreatedEvent != null)
 				MainProcessCreatedEvent (this, process);
 		}
 
-		internal void OnProcessCreatedEvent (Process process)
-		{
-			process_hash.Add (process, process);
-			if (ProcessCreatedEvent != null)
-				ProcessCreatedEvent (this, process);
-		}
-
-		internal void OnProcessExitedEvent (Process process)
-		{
-			process_hash.Remove (process);
-			if (ProcessExitedEvent != null)
-				ProcessExitedEvent (this, process);
-
-			if (process_hash.Count == 0)
-				OnTargetExitedEvent ();
-		}
-
 		internal void OnProcessReachedMainEvent (Process process)
 		{
 			if (ProcessReachedMainEvent != null)
 				ProcessReachedMainEvent (this, process);
 		}
 
+		internal void OnProcessCreatedEvent (Process process)
+		{
+			if (ProcessCreatedEvent != null)
+				ProcessCreatedEvent (this, process);
+		}
+
 		internal void OnTargetExitedEvent ()
 		{
 			ThreadPool.QueueUserWorkItem (delegate {
@@ -119,6 +103,12 @@ namespace Mono.Debugger
 			});
 		}
 
+		internal void OnProcessExitedEvent (Process process)
+		{
+			if (ProcessExitedEvent != null)
+				ProcessExitedEvent (this, process);
+		}
+
 		internal void OnProcessExecdEvent (Process process)
 		{
 			if (ProcessExecdEvent != null)
@@ -145,13 +135,8 @@ namespace Mono.Debugger
 
 		internal void OnTargetEvent (Thread thread, TargetEventArgs args)
 		{
-			try {
-				if (TargetEvent != null)
-					TargetEvent (thread, args);
-			} catch (Exception ex) {
-				Error ("{0} caught exception while sending {1}:\n{2}",
-				       thread, args, ex);
-			}
+			if (TargetEvent != null)
+				TargetEvent (thread, args);
 		}
 
 		internal void OnModuleLoadedEvent (Module module)
@@ -178,47 +163,18 @@ namespace Mono.Debugger
 				LeaveNestedBreakStateEvent (this, thread);
 		}
 
-		public void Error (string message, params object[] args)
-		{
-			Console.WriteLine ("ERROR: " + String.Format (message, args));
-		}
-
 		public void Kill ()
 		{
-			if (!alive)
-				return;
-
-			main_process = null;
-
-			Process[] procs;
-			lock (process_hash.SyncRoot) {
-				procs = new Process [process_hash.Count];
-				process_hash.Values.CopyTo (procs, 0);
-			}
-
-			foreach (Process proc in procs) {
-				proc.Kill ();
+			if (servant != null) {
+				servant.Kill ();
+				kill_event.WaitOne ();
 			}
-
-			kill_event.WaitOne ();
 		}
 
 		public void Detach ()
 		{
-			if (main_process == null)
-				throw new TargetException (TargetError.NoTarget);
-			else if (!main_process.CanDetach)
-				throw new TargetException (TargetError.CannotDetach);
-
-			Process[] procs;
-			lock (process_hash.SyncRoot) {
-				procs = new Process [process_hash.Count];
-				process_hash.Values.CopyTo (procs, 0);
-			}
-
-			foreach (Process proc in procs) {
-				proc.Detach ();
-			}
+			check_servant ();
+			servant.Detach ();
 		}
 
 		public Process Run (DebuggerSession session)
@@ -229,14 +185,8 @@ namespace Mono.Debugger
 
 		public Process Run (DebuggerSession session, out CommandResult result)
 		{
-			check_alive ();
-
-			if (main_process != null)
-				throw new TargetException (TargetError.AlreadyHaveTarget);
-
-			ProcessStart start = new ProcessStart (session);
-			main_process = thread_manager.StartApplication (start, out result);
-			return main_process;
+			check_servant ();
+			return servant.Run (session, out result);
 		}
 
 		public Process Attach (DebuggerSession session, int pid)
@@ -247,170 +197,32 @@ namespace Mono.Debugger
 
 		public Process Attach (DebuggerSession session, int pid, out CommandResult result)
 		{
-			check_alive ();
-
-			if (main_process != null)
-				throw new TargetException (TargetError.AlreadyHaveTarget);
-
-			ProcessStart start = new ProcessStart (session, pid);
-			main_process = thread_manager.StartApplication (start, out result);
-			return main_process;
+			check_servant ();
+			return servant.Attach (session, pid, out result);
 		}
 
-#if DISABLED
 		public Process OpenCoreFile (DebuggerSession session, string core_file,
 					     out Thread[] threads)
 		{
-			check_alive ();
-
-			if (main_process != null)
-				throw new TargetException (TargetError.AlreadyHaveTarget);
-
-			ProcessStart start = new ProcessStart (session, core_file);
-
-			main_process = thread_manager.OpenCoreFile (start, out threads);
-			process_hash.Add (main_process, main_process);
-			return main_process;
+			check_servant ();
+			return servant.OpenCoreFile (session, core_file, out threads);
 		}
-#endif
 
 		public bool HasTarget {
-			get { return alive; }
+			get { return servant != null; }
 		}
 
 		public Process[] Processes {
 			get {
-				check_alive ();
-				lock (process_hash.SyncRoot) {
-					int count = process_hash.Count;
-					Process[] procs = new Process [count];
-					Process[] servants = new Process [count];
-					process_hash.Values.CopyTo (servants, 0);
-					for (int i = 0; i < count; i++)
-						procs [i] = servants [i];
-					return procs;
-				}
+				check_servant ();
+				return servant.Processes;
 			}
 		}
 
 		public bool CanDetach {
-			get {
-				return alive && (main_process != null) && main_process.CanDetach;
-			}
-		}
-
-#region Global Threading Model
-
-		ManualResetEvent stopped_event;
-		OperationCommandResult current_operation;
-
-		internal WaitHandle WaitHandle {
-			get { return stopped_event; }
+			get { return (servant != null) && servant.CanDetach; }
 		}
 
-		internal CommandResult StartOperation (ThreadingModel model, SingleSteppingEngine caller)
-		{
-			if (!ThreadManager.InBackgroundThread)
-				throw new InternalError ();
-
-			if ((model & ThreadingModel.ThreadingMode) == ThreadingModel.Default) {
-				if (Inferior.HasThreadEvents)
-					model |= ThreadingModel.Single;
-				else
-					model |= ThreadingModel.Process;
-			}
-
-			if ((model & ThreadingModel.ThreadingMode) != ThreadingModel.Global)
-				return caller.Process.StartOperation (model, caller);
-
-			if (current_operation != null)
-				throw new TargetException (TargetError.NotStopped);
-
-			lock (this) {
-				stopped_event.Reset ();
-				current_operation = new GlobalCommandResult (this, model);
-			}
-
-			foreach (Process process in process_hash.Values) {
-				process.StartGlobalOperation (model, caller, current_operation);
-			}
-
-			return current_operation;
-		}
-
-		void OperationCompleted (SingleSteppingEngine caller, TargetEventArgs result, ThreadingModel model)
-		{
-			if (!ThreadManager.InBackgroundThread)
-				throw new InternalError ();
-
-			foreach (Process process in process_hash.Values) {
-				process.OperationCompleted (caller, result, model);
-			}
-
-			lock (this) {
-				current_operation = null;
-				stopped_event.Set ();
-			}
-		}
-
-		void StopAll ()
-		{
-			foreach (Process process in process_hash.Values) {
-				process.Stop ();
-			}
-		}
-
-		class MyOperationHost : IOperationHost
-		{
-			public Debugger Debugger;
-
-			public MyOperationHost (Debugger debugger)
-			{
-				this.Debugger = debugger;
-			}
-
-			void IOperationHost.OperationCompleted (SingleSteppingEngine caller, TargetEventArgs result, ThreadingModel model)
-			{
-				Debugger.OperationCompleted (caller, result, model);
-			}
-
-			WaitHandle IOperationHost.WaitHandle {
-				get { return Debugger.stopped_event; }
-			}
-
-			void IOperationHost.SendResult (SingleSteppingEngine sse, TargetEventArgs args)
-			{
-				Debugger.OnTargetEvent (sse.Thread, args);
-			}
-
-			void IOperationHost.Abort ()
-			{
-				Debugger.StopAll ();
-			}
-		}
-
-		class GlobalCommandResult : OperationCommandResult
-		{
-			public Debugger Debugger {
-				get; private set;
-			}
-
-			internal override IOperationHost Host {
-				get { return Debugger.OperationHost; }
-			}
-
-			internal GlobalCommandResult (Debugger debugger, ThreadingModel model)
-				: base (model)
-			{
-				this.Debugger = debugger;
-			}
-
-			internal override void OnExecd (SingleSteppingEngine new_thread)
-			{ }
-		}
-
-#endregion
-
 		[Obsolete]
 		GUIManager gui_manager;
 
@@ -428,9 +240,9 @@ namespace Mono.Debugger
 		// IDisposable
 		//
 
-		void check_alive ()
+		void check_servant ()
 		{
-			if (!alive)
+			if (servant == null)
 				throw new TargetException (TargetError.NoTarget);
 		}
 
@@ -442,7 +254,7 @@ namespace Mono.Debugger
 				throw new ObjectDisposedException ("DebuggerServant");
 		}
 
-		void Dispose (bool disposing)
+		protected virtual void Dispose (bool disposing)
 		{
 			// Check to see if Dispose has already been called.
 			lock (this) {
@@ -450,17 +262,21 @@ namespace Mono.Debugger
 					return;
 
 				disposed = true;
-				alive = false;
 			}
 
 			// If this is a call to Dispose, dispose all managed resources.
 			if (disposing) {
-				if (thread_manager != null) {
-					thread_manager.Dispose ();
-					thread_manager = null;
+				if (servant != null) {
+					servant.Dispose ();
+					servant = null;
 				}
 
-				ObjectCache.Shutdown ();
+#if USE_DOMAIN
+				if (domain != null) {
+					AppDomain.Unload (domain);
+					domain = null;
+				}
+#endif
 			}
 		}
 
diff --git a/classes/ExpressionEvaluator.cs b/classes/ExpressionEvaluator.cs
index ceb3f96..3b693c5 100644
--- a/classes/ExpressionEvaluator.cs
+++ b/classes/ExpressionEvaluator.cs
@@ -91,9 +91,6 @@ namespace Mono.Debugger
 		{
 			result = null;
 
-			if (!obj.Type.Language.IsManaged)
-				return EvaluationResult.MethodNotFound;
-
 		again:
 			TargetStructType ctype = obj.Type;
 			if ((ctype.Name == "System.Object") || (ctype.Name == "System.ValueType"))
@@ -160,11 +157,9 @@ namespace Mono.Debugger
 				return EvaluationResult.Ok;
 			}
 
-			if (obj.Type.HasParent) {
-				obj = obj.GetParentObject (thread) as TargetClassObject;
-				if (obj != null)
-					goto again;
-			}
+			obj = obj.GetParentObject (thread) as TargetClassObject;
+			if (obj != null)
+				goto again;
 
 			return EvaluationResult.MethodNotFound;
 		}
diff --git a/classes/MainMethodBreakpoint.cs b/classes/MainMethodBreakpoint.cs
index 8a31cfd..8216f00 100644
--- a/classes/MainMethodBreakpoint.cs
+++ b/classes/MainMethodBreakpoint.cs
@@ -32,14 +32,14 @@ namespace Mono.Debugger
 				return handle;
 
 			if (frame.Thread.Process.IsManaged) {
-				MonoLanguageBackend mono = frame.Thread.Process.MonoLanguage;
+				MonoLanguageBackend mono = frame.Thread.Process.Servant.MonoLanguage;
 				MonoFunctionType main = mono.MainMethod;
 				if (main == null)
 					return null;
 
 				handle = main.GetBreakpointHandle (this, -1, -1);
 			} else {
-				OperatingSystemBackend os = frame.Thread.Process.OperatingSystem;
+				OperatingSystemBackend os = frame.Thread.Process.Servant.OperatingSystem;
 				TargetAddress main = os.LookupSymbol ("main");
 				if (main.IsNull)
 					return null;
diff --git a/classes/Makefile.in b/classes/Makefile.in
index 395474f..c17586b 100644
--- a/classes/Makefile.in
+++ b/classes/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/classes/Method.cs b/classes/Method.cs
index 8d18d6c..b0eebfa 100644
--- a/classes/Method.cs
+++ b/classes/Method.cs
@@ -173,9 +173,6 @@ namespace Mono.Debugger
 			get {
 				return name;
 			}
-			protected set {
-				name = value;
-			}
 		}
 
 		public string ImageFile {
diff --git a/classes/Process.cs b/classes/Process.cs
index a4bf08e..e9cd19e 100644
--- a/classes/Process.cs
+++ b/classes/Process.cs
@@ -7,11 +7,8 @@ using System.Runtime.Serialization;
 using System.Runtime.Serialization.Formatters.Binary;
 
 using Mono.Debugger.Backend;
-using Mono.Debugger.Backend.Mono;
-using Mono.Debugger.Architectures;
 using Mono.Debugger.Languages;
 using Mono.Debugger.Languages.Mono;
-using Mono.Debugger.Languages.Native;
 
 namespace Mono.Debugger
 {
@@ -25,17 +22,96 @@ namespace Mono.Debugger
 		StopUnhandled = 2
 	}
 
-	public sealed class Process : DebuggerMarshalByRefObject
+	public class Process : DebuggerMarshalByRefObject
 	{
+		Debugger debugger;
+		ProcessServant servant;
+
 		int id = ++next_id;
 		static int next_id = 0;
 
+		internal Process (Debugger debugger, ProcessServant servant)
+		{
+			this.debugger = debugger;
+			this.servant = servant;
+		}
+
 		public int ID {
 			get { return id; }
 		}
 
+		public Debugger Debugger {
+			get { return debugger; }
+		}
+
+		public DebuggerSession Session {
+			get { return servant.Session; }
+		}
+
+		internal ProcessServant Servant {
+			get { return servant; }
+		}
+
+		internal ProcessStart ProcessStart {
+			get { return servant.ProcessStart; }
+		}
+
 		public Thread MainThread {
-			get { return MainThreadServant.Client; }
+			get { return servant.MainThread.Client; }
+		}
+
+		public bool IsManaged {
+			get { return servant.IsManaged; }
+		}
+
+		public string TargetApplication {
+			get { return servant.TargetApplication; }
+		}
+
+		public string[] CommandLineArguments {
+			get { return servant.CommandLineArguments; }
+		}
+
+		public Language NativeLanguage {
+			get { return servant.NativeLanguage; }
+		}
+
+		public ST.WaitHandle WaitHandle {
+			get { return servant.WaitHandle; }
+		}
+
+		public void Kill ()
+		{
+			servant.Kill ();
+		}
+
+		public void Detach ()
+		{
+			servant.Detach ();
+		}
+
+		public void LoadLibrary (Thread thread, string filename)
+		{
+			servant.LoadLibrary (thread, filename);
+		}
+
+		public Module[] Modules {
+			get { return servant.Modules; }
+		}
+
+		public Method Lookup (TargetAddress address)
+		{
+			return servant.SymbolTableManager.Lookup (address);
+		}
+
+		public TargetAddress LookupSymbol (string name)
+		{
+			return servant.LookupSymbol (name);
+		}
+
+		public Thread[] GetThreads ()
+		{
+			return servant.GetThreads ();
 		}
 
 		public override string ToString ()
@@ -56,19 +132,19 @@ namespace Mono.Debugger
 			if (!Session.HasPendingBreakpoints ())
 				return null;
 
-			BreakpointCommandResult result = new BreakpointCommandResult (this);
-			bool completed = ActivatePendingBreakpoints_internal (result);
+			ProcessCommandResult result = new ProcessCommandResult (this);
+			bool completed = servant.ActivatePendingBreakpoints (result);
 			if (completed)
 				return null;
 			return result;
 		}
 
-		class BreakpointCommandResult : CommandResult
+		protected class ProcessCommandResult : CommandResult
 		{
 			Process process;
 			ST.ManualResetEvent completed_event = new ST.ManualResetEvent (false);
 
-			internal BreakpointCommandResult (Process process)
+			internal ProcessCommandResult (Process process)
 			{
 				this.process = process;
 			}
@@ -148,910 +224,6 @@ namespace Mono.Debugger
 			check_disposed ();
 		}
 
-		TargetInfo target_info;
-		ThreadManager manager;
-		Architecture architecture;
-		OperatingSystemBackend os;
-		NativeLanguage native_language;
-		SymbolTableManager symtab_manager;
-		MonoThreadManager mono_manager;
-		BreakpointManager breakpoint_manager;
-		Dictionary<int,ExceptionCatchPoint> exception_handlers;
-		ProcessStart start;
-		DebuggerSession session;
-		MonoLanguageBackend mono_language;
-		ThreadServant main_thread;
-		Hashtable thread_hash;
-
-		MyOperationHost operation_host;
-
-		Process parent;
-
-		ThreadDB thread_db;
-
-		bool is_attached;
-		bool is_execed;
-		bool is_forked;
-		bool initialized;
-		DebuggerMutex thread_lock_mutex;
-		bool has_thread_lock;
-
-		private Process (ThreadManager manager, DebuggerSession session)
-		{
-			this.manager = manager;
-			this.session = session;
-
-			operation_host = new MyOperationHost (this);
-
-			thread_lock_mutex = new DebuggerMutex ("thread_lock_mutex");
-
-			stopped_event = new ST.ManualResetEvent (false);
-
-			thread_hash = Hashtable.Synchronized (new Hashtable ());
-
-			target_info = Inferior.GetTargetInfo ();
-			if (target_info.TargetAddressSize == 8)
-				architecture = new Architecture_X86_64 (this, target_info);
-			else
-				architecture = new Architecture_I386 (this, target_info);
-		}
-
-		internal Process (ThreadManager manager, ProcessStart start)
-			: this (manager, start.Session)
-		{
-			this.start = start;
-
-			is_attached = start.PID != 0;
-
-			breakpoint_manager = new BreakpointManager ();
-
-			exception_handlers = new Dictionary<int,ExceptionCatchPoint> ();
-
-			symtab_manager = new SymbolTableManager (session);
-
-			os = Inferior.CreateOperatingSystemBackend (this);
-			native_language = new NativeLanguage (this, os, target_info);
-
-			session.OnProcessCreated (this);
-		}
-
-		private Process (Process parent, int pid)
-			: this (parent.manager, parent.session)
-		{
-			this.start = new ProcessStart (parent.ProcessStart, pid);
-
-			this.is_forked = true;
-			this.initialized = true;
-
-			this.parent = parent;
-
-			breakpoint_manager = new BreakpointManager (parent.breakpoint_manager);
-
-			exception_handlers = new Dictionary<int,ExceptionCatchPoint> ();
-			foreach (KeyValuePair<int,ExceptionCatchPoint> catchpoint in parent.exception_handlers)
-				exception_handlers.Add (catchpoint.Key, catchpoint.Value);
-
-			symtab_manager = parent.symtab_manager;
-
-			native_language = parent.native_language;
-			os = parent.os;
-		}
-
-		public Debugger Debugger {
-			get { return manager.Debugger; }
-		}
-
-		public bool IsAttached {
-			get { return is_attached; }
-		}
-
-		public bool CanDetach {
-			get { return is_attached || Inferior.CanDetachAny; }
-		}
-
-		public bool IsExeced {
-			get { return is_execed; }
-		}
-
-		public DebuggerSession Session {
-			get { return session; }
-		}
-
-		internal ThreadManager ThreadManager {
-			get { return manager; }
-		}
-
-		internal Architecture Architecture {
-			get { return architecture; }
-		}
-
-		internal BreakpointManager BreakpointManager {
-			get { return breakpoint_manager; }
-		}
-
-		internal SymbolTableManager SymbolTableManager {
-			get {
-				return symtab_manager;
-			}
-		}
-
-		public Language NativeLanguage {
-			get { return native_language; }
-		}
-
-		internal OperatingSystemBackend OperatingSystem {
-			get { return os; }
-		}
-
-		internal ThreadServant MainThreadServant {
-			get { return main_thread; }
-		}
-
-		internal ProcessStart ProcessStart {
-			get { return start; }
-		}
-
-		internal MonoThreadManager MonoManager {
-			get { return mono_manager; }
-		}
-
-		internal bool MonoRuntimeFound {
-			get; private set;
-		}
-
-		public bool IsManaged {
-			get { return mono_manager != null; }
-		}
-
-		internal bool CanExecuteCode {
-			get { return (mono_manager != null) && mono_manager.CanExecuteCode; }
-		}
-
-		public string TargetApplication {
-			get { return start.TargetApplication; }
-		}
-
-		public string[] CommandLineArguments {
-			get { return start.CommandLineArguments; }
-		}
-
-		internal ST.WaitHandle WaitHandle {
-			get { return stopped_event; }
-		}
-
-		internal IOperationHost OperationHost {
-			get { return operation_host; }
-		}
-
-		internal void ThreadCreated (Inferior inferior, int pid, bool do_attach, bool resume_thread)
-		{
-			Inferior new_inferior = inferior.CreateThread (pid, do_attach);
-
-			SingleSteppingEngine new_thread = new SingleSteppingEngine (manager, this, new_inferior, pid);
-
-			Report.Debug (DebugFlags.Threads, "Thread created: {0} {1} {2}", pid, new_thread, do_attach);
-
-			if (mono_manager != null)
-				mono_manager.ThreadCreated (new_thread);
-
-			if (!do_attach && !is_execed)
-				get_thread_info (inferior, new_thread);
-			OnThreadCreatedEvent (new_thread);
-
-			if (resume_thread) {
-				CommandResult result = current_operation != null ?
-					current_operation : new ThreadCommandResult (new_thread.Thread);
-				new_thread.StartThread (result);
-			} else {
-				new_thread.StartSuspended ();
-			}
-		}
-
-		internal void ChildForked (Inferior inferior, int pid)
-		{
-			Process new_process = new Process (this, pid);
-			new_process.ProcessStart.StopInMain = false;
-
-			Inferior new_inferior = Inferior.CreateInferior (
-				manager, new_process, new_process.ProcessStart);
-			new_inferior.InitializeThread (pid);
-
-			if (!manager.Debugger.Configuration.FollowFork) {
-				new_inferior.DetachAfterFork ();
-				return;
-			}
-
-			SingleSteppingEngine new_thread = new SingleSteppingEngine (
-				manager, new_process, new_inferior, pid);
-
-			Report.Debug (DebugFlags.Threads, "Child forked: {0} {1}", pid, new_thread);
-
-			new_process.main_thread = new_thread;
-
-			manager.Debugger.OnProcessCreatedEvent (new_process);
-			new_process.OnThreadCreatedEvent (new_thread);
-
-			CommandResult result = new_process.CloneParentOperation (new_thread);
-			new_thread.StartForkedChild (result);
-		}
-
-		internal void ChildExecd (SingleSteppingEngine engine, Inferior inferior)
-		{
-			is_execed = true;
-
-			if (!is_forked) {
-				if (mono_language != null)
-					mono_language.Dispose();
-
-				if (native_language != null)
-					native_language.Dispose ();
-
-				if (os != null)
-					os.Dispose ();
-
-				if (symtab_manager != null)
-					symtab_manager.Dispose ();
-			}
-
-			if (breakpoint_manager != null)
-				breakpoint_manager.Dispose ();
-
-			session.OnProcessExecd (this);
-
-			breakpoint_manager = new BreakpointManager ();
-
-			exception_handlers = new Dictionary<int,ExceptionCatchPoint> ();
-
-			symtab_manager = new SymbolTableManager (session);
-
-			os = Inferior.CreateOperatingSystemBackend (this);
-			native_language = new NativeLanguage (this, os, target_info);
-
-			Inferior new_inferior = Inferior.CreateInferior (manager, this, start);
-			try {
-				new_inferior.InitializeAfterExec (inferior.PID);
-			} catch (Exception ex) {
-				if ((ex is TargetException) && (((TargetException) ex).Type == TargetError.PermissionDenied)) {
-					Report.Error ("Permission denied when trying to debug exec()ed child {0}, detaching!",
-						      inferior.PID);
-				} else {
-					Report.Error ("InitializeAfterExec() failed on pid {0}: {1}", inferior.PID, ex);
-				}
-				new_inferior.DetachAfterFork ();
-				return;
-			}
-
-			SingleSteppingEngine new_thread = new SingleSteppingEngine (
-				manager, this, new_inferior, inferior.PID);
-
-			ThreadServant[] threads;
-			lock (thread_hash.SyncRoot) {
-				threads = new ThreadServant [thread_hash.Count];
-				thread_hash.Values.CopyTo (threads, 0);
-			}
-
-			for (int i = 0; i < threads.Length; i++) {
-				if (threads [i].PID != inferior.PID)
-					threads [i].Kill ();
-			}
-
-			thread_hash [inferior.PID] = new_thread;
-
-			inferior.Dispose ();
-			inferior = null;
-
-			manager.Debugger.OnProcessExecdEvent (this);
-			manager.Debugger.OnThreadCreatedEvent (new_thread.Thread);
-			initialized = is_forked = false;
-			main_thread = new_thread;
-
-			if ((engine.Thread.ThreadFlags & Thread.Flags.StopOnExit) != 0)
-				new_thread.Thread.ThreadFlags |= Thread.Flags.StopOnExit;
-
-			CommandResult result = engine.OnExecd (new_thread);
-			new_thread.StartExecedChild (result);
-		}
-
-		internal CommandResult StartApplication ()
-		{
-			SingleSteppingEngine engine = new SingleSteppingEngine (manager, this, start);
-
-			initialized = true;
-
-			this.main_thread = engine;
-			engine.Thread.ThreadFlags |= Thread.Flags.StopOnExit;
-
-			if (thread_hash.Contains (engine.PID))
-				thread_hash [engine.PID] = engine;
-			else
-				thread_hash.Add (engine.PID, engine);
-			session.MainThreadGroup.AddThread (engine.Thread.ID);
-
-			session.OnMainProcessCreated (this);
-			manager.Debugger.OnMainProcessCreatedEvent (this);
-
-			CommandResult result = Debugger.StartOperation (start.Session.Config.ThreadingModel, engine);
-			return engine.StartApplication (result);
-		}
-
-		internal void OnProcessExitedEvent ()
-		{
-			DropGlobalThreadLock ();
-
-			if (current_state == ProcessState.Running) {
-				current_state = ProcessState.Exited;
-				current_operation.Completed ();
-				current_operation = null;
-				stopped_event.Set ();
-			}
-
-			if (!is_forked)
-				session.OnProcessExited (this);
-			session.MainThreadGroup.RemoveThread (main_thread.ID);
-			manager.Debugger.OnProcessExitedEvent (this);
-		}
-
-		void OnThreadCreatedEvent (ThreadServant thread)
-		{
-			thread_hash.Add (thread.PID, thread);
-			manager.Debugger.OnThreadCreatedEvent (thread.Client);
-		}
-
-		internal void OnManagedThreadExitedEvent (ThreadServant thread)
-		{
-			thread_hash.Remove (thread.PID);
-		}
-
-		internal void OnProcessReachedMainEvent ()
-		{
-			manager.Debugger.OnProcessReachedMainEvent (this);
-		}
-
-		internal void OnThreadExitedEvent (ThreadServant thread)
-		{
-			thread_hash.Remove (thread.PID);
-			thread.ThreadGroup.RemoveThread (thread.ID);
-			session.DeleteThreadGroup (thread.ThreadGroup.Name);
-			manager.Debugger.OnThreadExitedEvent (thread.Client);
-
-			if (thread_hash.Count == 0)
-				OnProcessExitedEvent ();
-		}
-
-		internal void InitializeMono (Inferior inferior, TargetAddress mdb_debug_info)
-		{
-			MonoRuntimeFound = true;
-			mono_manager = MonoThreadManager.Initialize (this, inferior, mdb_debug_info, is_attached);
-
-			InitializeThreads (inferior, !is_attached);
-
-			if (mono_manager == null)
-				return;
-
-			mono_manager.InitializeThreads (inferior);
-
-			if (is_attached)
-				mono_manager.InitializeAfterAttach (inferior);
-		}
-
-		internal void InitializeThreads (Inferior inferior, bool resume_threads)
-		{
-			if (thread_db != null)
-				return;
-
-			thread_db = ThreadDB.Create (this, inferior);
-			if (thread_db == null) {
-				if (!IsManaged)
-					return;
-
-				Report.Error ("Failed to initialize thread_db on {0}", start.CommandLine);
-				throw new TargetException (TargetError.CannotStartTarget,
-							   "Failed to initialize thread_db on {0}", start.CommandLine);
-			}
-
-			int[] threads = inferior.GetThreads ();
-			foreach (int thread in threads) {
-				if (thread_hash.Contains (thread))
-					continue;
-				ThreadCreated (inferior, thread, Inferior.HasThreadEvents, resume_threads);
-			}
-
-			thread_db.GetThreadInfo (inferior, delegate (int lwp, long tid) {
-				SingleSteppingEngine engine = (SingleSteppingEngine) thread_hash [lwp];
-				if (engine == null) {
-					Report.Error ("Unknown thread {0} in {1}", lwp, start.CommandLine);
-					return;
-				}
-				engine.SetTID (tid);
-			});
-		}
-
-		internal bool CheckForThreads (ArrayList check_threads)
-		{
-			if(thread_db == null)
-				return false;
-			thread_db.GetThreadInfo (null, delegate (int lwp, long tid) {
-				check_threads.Add(lwp);
-			} );
-			return true;
-		}
-
-		void get_thread_info (Inferior inferior, SingleSteppingEngine engine)
-		{
-			if (thread_db == null) {
-				if (mono_manager == null)
-					return;
-				Report.Error ("Failed to initialize thread_db on {0}: {1} {2}",
-					      start.CommandLine, start, Environment.StackTrace);
-				throw new InternalError ();
-			}
-
-			bool found = false;
-			thread_db.GetThreadInfo (inferior, delegate (int lwp, long tid) {
-				if (lwp != engine.PID)
-					return;
-
-				engine.SetTID (tid);
-				found = true;
-			});
-
-			if (!found)
-				Report.Error ("Cannot find thread {0:x} in {1}",
-					      engine.PID, start.CommandLine);
-		}
-
-		internal SingleSteppingEngine GetEngineByTID (Inferior inferior, long tid)
-		{
-			foreach (SingleSteppingEngine engine in thread_hash.Values) {
-				if (engine.TID == tid)
-					return engine;
-			}
-
-			if (thread_db == null) {
-				Report.Error ("Failed to initialize thread_db on {0}: {1}",
-					      start.CommandLine, start);
-				return null;
-			}
-
-			SingleSteppingEngine result = null;
-			thread_db.GetThreadInfo (inferior, delegate (int t_lwp, long t_tid) {
-				if (tid != t_tid)
-					return;
-				result = (SingleSteppingEngine) thread_hash [t_lwp];
-
-			});
-
-			if (result == null)
-				Report.Error ("Cannot find thread {0:x} in {1}",
-					      tid, start.CommandLine);
-
-			return result;
-		}
-
-		public void Kill ()
-		{
-			if (!Inferior.HasThreadEvents) {
-				SingleSteppingEngine[] sses = new SingleSteppingEngine [thread_hash.Count];
-				thread_hash.Values.CopyTo (sses, 0);
-				foreach (SingleSteppingEngine sse in sses)
-					sse.SetKilledFlag ();
-				foreach (SingleSteppingEngine sse in sses)
-					sse.Kill ();
-			} else {
-				main_thread.Kill ();
-			}
-		}
-
-		public void Detach ()
-		{
-			if (!CanDetach)
-				throw new TargetException (TargetError.CannotDetach);
-
-			main_thread.Detach ();
-		}
-
-		internal void OnTargetDetached ()
-		{
-			OnProcessExitedEvent ();
-			Dispose ();
-		}
-
-		internal MonoLanguageBackend CreateMonoLanguage (MonoDebuggerInfo info)
-		{
-			mono_language = new MonoLanguageBackend (this, info);
-			return mono_language;
-		}
-
-		internal void UpdateSymbolTable (TargetMemoryAccess target)
-		{
-			if (mono_language != null)
-				mono_language.Update (target);
-		}
-
-		public void LoadLibrary (Thread thread, string filename)
-		{
-			if (mono_language == null)
-				throw new SymbolTableException (
-						"Cannot load .NET assembly `{0}' while " +
-						"debugging an unmanaged application.",
-						filename);
-
-			if (!mono_language.TryFindImage (thread, filename))
-				throw new SymbolTableException ("Could not find any .NET assembly `{0}'.", filename);
-		}
-
-		internal MonoLanguageBackend MonoLanguage {
-			get {
-				if (mono_language == null)
-					throw new InvalidOperationException ();
-
-				return mono_language;
-			}
-		}
-
-		internal bool IsManagedApplication {
-			get { return mono_language != null; }
-		}
-
-		public Module[] Modules {
-			get { return session.Modules; }
-		}
-
-		public SourceLocation FindLocation (string file, int line)
-		{
-			foreach (Module module in Modules) {
-				SourceLocation location = module.FindLocation (file, line);
-
-				if (location != null)
-					return location;
-			}
-
-			return null;
-		}
-
-		public SourceLocation FindMethod (string name)
-		{
-			foreach (Module module in Modules) {
-				MethodSource method = module.FindMethod (name);
-
-				if (method != null)
-					return new SourceLocation (method);
-			}
-
-			return null;
-		}
-
-		internal ThreadServant[] ThreadServants {
-			get {
-				lock (thread_hash.SyncRoot) {
-					int count = thread_hash.Count;
-					ThreadServant[] servants = new ThreadServant [count];
-					thread_hash.Values.CopyTo (servants, 0);
-					return servants;
-				}
-			}
-		}
-
-		internal SingleSteppingEngine[] Engines {
-			get {
-				lock (thread_hash.SyncRoot) {
-					int count = thread_hash.Count;
-					SingleSteppingEngine[] engines = new SingleSteppingEngine [count];
-					thread_hash.Values.CopyTo (engines, 0);
-					return engines;
-				}
-			}
-		}
-
-		public TargetAddress LookupSymbol (string name)
-		{
-			return os.LookupSymbol (name);
-		}
-
-		public Thread[] GetThreads ()
-		{
-			lock (thread_hash.SyncRoot) {
-				int count = thread_hash.Count;
-				Thread[] threads = new Thread [count];
-				ThreadServant[] servants = new ThreadServant [count];
-				thread_hash.Values.CopyTo (servants, 0);
-				for (int i = 0; i < count; i++)
-					threads [i] = servants [i].Client;
-				return threads;
-			}
-		}
-
-		internal bool HasThreadLock {
-			get { return has_thread_lock; }
-		}
-
-		// <summary>
-		//   Stop all currently running threads without sending any notifications.
-		//   The threads are automatically resumed to their previos state when
-		//   ReleaseGlobalThreadLock() is called.
-		// </summary>
-		internal void AcquireGlobalThreadLock (SingleSteppingEngine caller)
-		{
-			if (has_thread_lock)
-				throw new InternalError ("Recursive thread lock");
-
-			thread_lock_mutex.Lock ();
-			Report.Debug (DebugFlags.Threads,
-				      "Acquiring global thread lock: {0}", caller);
-			has_thread_lock = true;
-			foreach (ThreadServant thread in thread_hash.Values) {
-				if (thread == caller)
-					continue;
-				thread.AcquireThreadLock ();
-			}
-			Report.Debug (DebugFlags.Threads,
-				      "Done acquiring global thread lock: {0}",
-				      caller);
-		}
-
-		internal void ReleaseGlobalThreadLock (SingleSteppingEngine caller)
-		{
-			Report.Debug (DebugFlags.Threads,
-				      "Releasing global thread lock: {0}", caller);
-
-			foreach (ThreadServant thread in thread_hash.Values) {
-				if (thread == caller)
-					continue;
-				thread.ReleaseThreadLock ();
-			}
-			has_thread_lock = false;
-			thread_lock_mutex.Unlock ();
-			Report.Debug (DebugFlags.Threads,
-				      "Released global thread lock: {0}", caller);
-		}
-
-		internal void DropGlobalThreadLock ()
-		{
-			if (thread_hash.Count != 0)
-				throw new InternalError ();
-
-			if (has_thread_lock) {
-				has_thread_lock = false;
-				thread_lock_mutex.Unlock ();
-			}
-		}
-
-#region User Threads
-
-		internal enum ProcessState
-		{
-			SingleThreaded,
-			Running,
-			Stopping,
-			Stopped,
-			Exited
-		}
-
-		ST.ManualResetEvent stopped_event;
-
-		ProcessState current_state = ProcessState.Stopped;
-		OperationCommandResult current_operation = null;
-
-		internal void OperationCompleted (SingleSteppingEngine caller, TargetEventArgs result, ThreadingModel model)
-		{
-			if (!ThreadManager.InBackgroundThread && Inferior.HasThreadEvents)
-				throw new InternalError ();
-
-			if (current_state == ProcessState.Stopping)
-				return;
-			else if (current_state != ProcessState.Running)
-				throw new InternalError ();
-
-			if ((result != null) && (caller != main_thread) &&
-			    ((result.Type == TargetEventType.TargetExited) || (result.Type == TargetEventType.TargetSignaled)))
-				return;
-
-			current_state = ProcessState.Stopping;
-			SuspendUserThreads (model, caller);
-
-			lock (this) {
-				current_state = ProcessState.Stopped;
-				current_operation.Completed ();
-				current_operation = null;
-				stopped_event.Set ();
-			}
-		}
-
-		void SuspendUserThreads (ThreadingModel model, SingleSteppingEngine caller)
-		{
-			Report.Debug (DebugFlags.Threads,
-				      "Suspending user threads: {0} {1}", model, caller);
-
-			foreach (SingleSteppingEngine engine in thread_hash.Values) {
-				Report.Debug (DebugFlags.Threads, "  check user thread: {0} {1}",
-					      engine, engine.Thread.ThreadFlags);
-				if (engine == caller)
-					continue;
-				if (((engine.Thread.ThreadFlags & Thread.Flags.Immutable) != 0) &&
-				    ((model & ThreadingModel.StopImmutableThreads) == 0))
-					continue;
-				if (((engine.Thread.ThreadFlags & Thread.Flags.Daemon) != 0) &&
-				    ((model & ThreadingModel.StopDaemonThreads) == 0))
-					continue;
-				engine.SuspendUserThread ();
-			}
-
-			Report.Debug (DebugFlags.Threads,
-				      "Done suspending user threads: {0} {1}", model, caller);
-		}
-
-		void ResumeUserThreads (ThreadingModel model, SingleSteppingEngine caller)
-		{
-			Report.Debug (DebugFlags.Threads,
-				      "Resuming user threads: {0}", caller);
-
-			foreach (SingleSteppingEngine engine in thread_hash.Values) {
-				if (engine == caller)
-					continue;
-				if ((engine.Thread.ThreadFlags & Thread.Flags.AutoRun) == 0)
-					continue;
-				if (((engine.Thread.ThreadFlags & Thread.Flags.Immutable) != 0) &&
-				    ((model & ThreadingModel.StopImmutableThreads) == 0))
-					continue;
-				if (((engine.Thread.ThreadFlags & Thread.Flags.Daemon) != 0) &&
-				    ((model & ThreadingModel.StopDaemonThreads) == 0))
-					continue;
-
-				CommandResult result;
-				if (current_operation != null)
-					result = current_operation;
-				else
-					result = new ThreadCommandResult (engine.Thread);
-
-				engine.ResumeUserThread (result);
-			}
-
-			Report.Debug (DebugFlags.Threads,
-				      "Resumed user threads: {0}", caller);
-		}
-
-		internal CommandResult StartOperation (ThreadingModel model, SingleSteppingEngine caller)
-		{
-			if (!ThreadManager.InBackgroundThread)
-				throw new InternalError ();
-
-			if ((current_state != ProcessState.Stopped) && (current_state != ProcessState.SingleThreaded))
-				throw new TargetException (TargetError.NotStopped);
-
-			if ((model & ThreadingModel.ThreadingMode) == ThreadingModel.Single) {
-				current_state = ProcessState.SingleThreaded;
-				if ((model & ThreadingModel.ResumeThreads) != 0)
-					ResumeUserThreads (model, caller);
-				return new ThreadCommandResult (caller.Thread);
-			} else if ((model & ThreadingModel.ThreadingMode) != ThreadingModel.Process) {
-				throw new ArgumentException ();
-			}
-
-			lock (this) {
-				current_state = ProcessState.Running;
-				stopped_event.Reset ();
-				current_operation = new ProcessCommandResult (this, model);
-			}
-
-			ResumeUserThreads (model, caller);
-			return current_operation;
-		}
-
-		internal void StartGlobalOperation (ThreadingModel model, SingleSteppingEngine caller, OperationCommandResult operation)
-		{
-			if (!ThreadManager.InBackgroundThread)
-				throw new InternalError ();
-
-			if ((current_state != ProcessState.Stopped) && (current_state != ProcessState.SingleThreaded))
-				throw new TargetException (TargetError.NotStopped);
-
-			lock (this) {
-				current_state = ProcessState.Running;
-				stopped_event.Reset ();
-				current_operation = operation;
-			}
-
-			ResumeUserThreads (model, caller);
-		}
-
-		CommandResult CloneParentOperation (SingleSteppingEngine new_thread)
-		{
-			if (parent.current_state == ProcessState.SingleThreaded) {
-				current_state = ProcessState.SingleThreaded;
-				return new ThreadCommandResult (new_thread.Thread);
-			}
-
-			if (parent.current_state != ProcessState.Running)
-				throw new InternalError ();
-
-			current_state = ProcessState.Running;
-			if ((parent.current_operation.ThreadingModel & ThreadingModel.ThreadingMode) == ThreadingModel.Global)
-				current_operation = parent.current_operation;
-			else if ((parent.current_operation.ThreadingModel & ThreadingModel.ThreadingMode) == ThreadingModel.Process)
-				current_operation = new ProcessCommandResult (this, parent.current_operation.ThreadingModel);
-			else
-				throw new InternalError ();
-
-			return current_operation;
-		}
-
-		internal void Stop ()
-		{
-			main_thread.Invoke (delegate {
-				current_state = ProcessState.Stopping;
-
-				SuspendUserThreads (ThreadingModel.Process, null);
-				current_state = ProcessState.Stopped;
-				if (current_operation != null) {
-					current_operation.Completed ();
-					current_operation = null;
-				}
-				stopped_event.Set ();
-				return null;
-			}, null);
-		}
-
-		class MyOperationHost : IOperationHost
-		{
-			public Process Process;
-
-			public MyOperationHost (Process process)
-			{
-				this.Process = process;
-			}
-
-			void IOperationHost.OperationCompleted (SingleSteppingEngine caller, TargetEventArgs result, ThreadingModel model)
-			{
-				Process.OperationCompleted (caller, result, model);
-			}
-
-			ST.WaitHandle IOperationHost.WaitHandle {
-				get { return Process.stopped_event; }
-			}
-
-			void IOperationHost.SendResult (SingleSteppingEngine sse, TargetEventArgs args)
-			{
-				Process.Debugger.OnTargetEvent (sse.Client, args);
-			}
-
-			void IOperationHost.Abort ()
-			{
-				Process.Stop ();
-			}
-		}
-
-		class ProcessCommandResult : OperationCommandResult
-		{
-			public Process Process {
-				get; private set;
-			}
-
-			internal override IOperationHost Host {
-				get { return Process.OperationHost; }
-			}
-
-			internal ProcessCommandResult (Process process, ThreadingModel model)
-				: base (model)
-			{
-				this.Process = process;
-			}
-
-			internal override void OnExecd (SingleSteppingEngine new_thread)
-			{
-				Process = new_thread.Process;
-			}
-		}
-
-#endregion
-
-		internal bool ActivatePendingBreakpoints_internal (CommandResult result)
-		{
-			return ((SingleSteppingEngine) main_thread).ManagedCallback (
-				delegate (SingleSteppingEngine sse) {
-					return sse.ActivatePendingBreakpoints (null);
-				}, result);
-		}
-
 		//
 		// IDisposable
 		//
@@ -1064,55 +236,6 @@ namespace Mono.Debugger
 				throw new ObjectDisposedException ("Process");
 		}
 
-		void DoDispose ()
-		{
-			if (!is_forked) {
-				if (architecture != null) {
-					architecture.Dispose ();
-					architecture = null;
-				}
-
-				if (mono_language != null) {
-					mono_language.Dispose();
-					mono_language = null;
-				}
-
-				if (native_language != null) {
-					native_language.Dispose ();
-					native_language = null;
-				}
-
-				if (os != null) {
-					os.Dispose ();
-					os = null;
-				}
-
-				if (symtab_manager != null) {
-					symtab_manager.Dispose ();
-					symtab_manager = null;
-				}
-			}
-
-			if (breakpoint_manager != null) {
-				breakpoint_manager.Dispose ();
-				breakpoint_manager = null;
-			}
-
-			if (thread_db != null) {
-				thread_db.Dispose ();
-				thread_db = null;
-			}
-
-			if (thread_lock_mutex != null) {
-				thread_lock_mutex.Dispose ();
-				thread_lock_mutex = null;
-			}
-
-			exception_handlers = null;
-
-			manager.RemoveProcess (this);
-		}
-
 		private void Dispose (bool disposing)
 		{
 			// Check to see if Dispose has already been called.
@@ -1124,8 +247,12 @@ namespace Mono.Debugger
 			}
 
 			// If this is a call to Dispose, dispose all managed resources.
-			if (disposing)
-				DoDispose ();
+			if (disposing) {
+				if (servant != null) {
+					servant.Dispose ();
+					servant = null;
+				}
+			}
 		}
 
 		public void Dispose ()
diff --git a/classes/Semaphore.cs b/classes/Semaphore.cs
new file mode 100644
index 0000000..f3d2dfc
--- /dev/null
+++ b/classes/Semaphore.cs
@@ -0,0 +1,47 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Mono.Debugger.Backend
+{
+	public static class Semaphore
+	{
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_server_sem_init ();
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_server_sem_wait ();
+
+		[DllImport("monodebuggerserver")]
+		static extern void mono_debugger_server_sem_post ();
+
+		[DllImport("monodebuggerserver")]
+		static extern int mono_debugger_server_sem_get_value ();
+
+		static Semaphore ()
+		{
+			mono_debugger_server_sem_init ();
+		}
+
+		public static void Wait ()
+		{
+			Report.Debug (DebugFlags.Mutex, "{0} waiting for semaphore",
+				      DebuggerWaitHandle.CurrentThread);
+			mono_debugger_server_sem_wait ();
+			Report.Debug (DebugFlags.Mutex, "{0} done waiting for semaphore",
+				      DebuggerWaitHandle.CurrentThread);
+		}
+
+		public static void Set ()
+		{
+			Report.Debug (DebugFlags.Mutex, "{0} signalling semaphore",
+				      DebuggerWaitHandle.CurrentThread);
+			mono_debugger_server_sem_post ();
+		}
+
+		public static int Value {
+			get {
+				return mono_debugger_server_sem_get_value ();
+			}
+		}
+	}
+}
diff --git a/classes/Thread.cs b/classes/Thread.cs
index 6500c36..23584d4 100644
--- a/classes/Thread.cs
+++ b/classes/Thread.cs
@@ -18,7 +18,7 @@ namespace Mono.Debugger
 	[Serializable]
 	internal delegate object TargetAccessDelegate (Thread target, object user_data);
 
-	public sealed class Thread : DebuggerMarshalByRefObject, IOperationHost
+	public class Thread : DebuggerMarshalByRefObject, IOperationHost
 	{
 		[Flags]
 		public enum Flags {
@@ -45,7 +45,7 @@ namespace Mono.Debugger
 			get { return servant.WaitHandle; }
 		}
 
-		internal Language NativeLanguage {
+		protected internal Language NativeLanguage {
 			get {
 				check_servant ();
 				return servant.NativeLanguage;
@@ -137,10 +137,17 @@ namespace Mono.Debugger
 			}
 		}
 
+		internal ProcessServant ProcessServant {
+			get {
+				check_servant ();
+				return servant.ProcessServant;
+			}
+		}
+
 		public Process Process {
 			get {
 				check_servant ();
-				return servant.Process;
+				return ProcessServant.Client;
 			}
 		}
 
@@ -297,12 +304,12 @@ namespace Mono.Debugger
 			}
 		}
 
-		ThreadCommandResult Old_Step (StepMode mode)
+		protected ThreadCommandResult Old_Step (StepMode mode)
 		{
 			return Old_Step (mode, null);
 		}
 
-		ThreadCommandResult Old_Step (StepMode mode, StepFrame frame)
+		protected ThreadCommandResult Old_Step (StepMode mode, StepFrame frame)
 		{
 			lock (this) {
 				check_alive ();
@@ -480,7 +487,7 @@ namespace Mono.Debugger
 
 		void IOperationHost.SendResult (SingleSteppingEngine sse, TargetEventArgs args)
 		{
-			sse.Process.Debugger.OnTargetEvent (sse.Client, args);
+			sse.Process.Debugger.SendTargetEvent (sse, args);
 		}
 
 		void IOperationHost.Abort ()
@@ -778,13 +785,21 @@ namespace Mono.Debugger
 #region IDisposable implementation
 		private bool disposed = false;
 
-		void check_disposed ()
+		protected void check_disposed ()
 		{
 			if (disposed)
 				throw new ObjectDisposedException ("Thread");
 		}
 
-		void Dispose (bool disposing)
+		protected virtual void DoDispose ()
+		{
+			if (servant != null) {
+				servant.Dispose ();
+				servant = null;
+			}
+		}
+
+		protected virtual void Dispose (bool disposing)
 		{
 			// Check to see if Dispose has already been called.
 			if (disposed)
@@ -794,10 +809,7 @@ namespace Mono.Debugger
 
 			// If this is a call to Dispose, dispose all managed resources.
 			if (disposing) {
-				if (servant != null) {
-					servant.Dispose ();
-					servant = null;
-				}
+				DoDispose ();
 			}
 		}
 
diff --git a/config.h.in b/config.h.in
index 1913298..98feeff 100644
--- a/config.h.in
+++ b/config.h.in
@@ -130,8 +130,5 @@
 /* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
 #undef TIME_WITH_SYS_TIME
 
-/* Whether we're using Mono from trunk */
-#undef USING_MONO_FROM_TRUNK
-
 /* Version number of package */
 #undef VERSION
diff --git a/configure b/configure
index 9eee06e..59ff90a 100755
--- a/configure
+++ b/configure
@@ -786,8 +786,6 @@ ac_includes_default="\
 
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
-MONO_TRUNK_FALSE
-MONO_TRUNK_TRUE
 DISABLED_FALSE
 DISABLED_TRUE
 MARTIN_PRIVATE_FALSE
@@ -799,6 +797,7 @@ HAVE_XSP_TRUE
 XSP_EXE
 XSP_LIBS
 XSP_CFLAGS
+READLINE_DEPLIBS
 LIB_SUFFIX
 LIB_PREFIX
 LD_LIBRARY_PATH
@@ -826,6 +825,8 @@ SERVER_DEPENDENCIES_LIBS
 SERVER_DEPENDENCIES_CFLAGS
 BASE_DEPENDENCIES_LIBS
 BASE_DEPENDENCIES_CFLAGS
+COMPILING_FROM_SVN_FALSE
+COMPILING_FROM_SVN_TRUE
 PKG_CONFIG
 OTOOL64
 OTOOL
@@ -2582,7 +2583,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE=mono-debugger
- VERSION=2.10
+ VERSION=2.6.3
 
 
 cat >>confdefs.h <<_ACEOF
@@ -6182,13 +6183,13 @@ if test "${lt_cv_nm_interface+set}" = set; then
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:6185: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:6186: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:6188: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:6189: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:6191: output\"" >&5)
+  (eval echo "\"\$as_me:6192: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -7393,7 +7394,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 7396 "configure"' > conftest.$ac_ext
+  echo '#line 7397 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -8831,11 +8832,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8834: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8835: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:8838: \$? = $ac_status" >&5
+   echo "$as_me:8839: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -9170,11 +9171,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9173: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9174: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:9177: \$? = $ac_status" >&5
+   echo "$as_me:9178: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -9275,11 +9276,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9278: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9279: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:9282: \$? = $ac_status" >&5
+   echo "$as_me:9283: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -9330,11 +9331,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9333: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9334: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:9337: \$? = $ac_status" >&5
+   echo "$as_me:9338: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -12130,7 +12131,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12133 "configure"
+#line 12134 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12226,7 +12227,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12229 "configure"
+#line 12230 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12815,7 +12816,7 @@ _ACEOF
 
 
 
-CFLAGS="-g ${CFLAGS} -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs  -Wshadow -Wpointer-arith -Wno-cast-qual -Wcast-align -Wwrite-strings -fno-strict-aliasing"
+CFLAGS='-g -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs  -Wshadow -Wpointer-arith -Wno-cast-qual -Wcast-align -Wwrite-strings -fno-strict-aliasing'
 
 # Extract the first word of "pkg-config", so it can be a program name with args.
 set dummy pkg-config; ac_word=$2
@@ -12864,6 +12865,25 @@ $as_echo "$as_me: error: You need to install pkg-config" >&2;}
    { (exit 1); exit 1; }; }
 fi
 
+{ $as_echo "$as_me:$LINENO: checking whether we're compiling from SVN" >&5
+$as_echo_n "checking whether we're compiling from SVN... " >&6; }
+if test -f "$srcdir/.svn_version" ; then
+	from_svn=yes
+else
+	from_svn=no
+fi
+{ $as_echo "$as_me:$LINENO: result: $from_svn" >&5
+$as_echo "$from_svn" >&6; }
+
+ if test x$from_svn = xyes; then
+  COMPILING_FROM_SVN_TRUE=
+  COMPILING_FROM_SVN_FALSE='#'
+else
+  COMPILING_FROM_SVN_TRUE='#'
+  COMPILING_FROM_SVN_FALSE=
+fi
+
+
 pkg_config_path=
 
 # Check whether --with-crosspkgdir was given.
@@ -13114,29 +13134,6 @@ fi
 
 
 
-debugger_major_version=81
-min_debugger_minor_version=0
-symfile_major_version=50
-min_symfile_minor_version=0
-
-{ $as_echo "$as_me:$LINENO: checking Whether we're using Mono from trunk" >&5
-$as_echo_n "checking Whether we're using Mono from trunk... " >&6; }
-## Check for Mono from trunk
-if pkg-config --modversion mono-2>/dev/null; then
-	have_mono_trunk=true
-	mono_pc=mono-2
-	min_debugger_minor_version=6
-	server_deps="glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps"
-	{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-	have_mono_trunk=false
-	mono_pc=mono
-	server_deps="$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps"
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
 ## Versions of dependencies
 
 pkg_failed=no
@@ -13147,12 +13144,12 @@ if test -n "$SERVER_DEPENDENCIES_CFLAGS"; then
     pkg_cv_SERVER_DEPENDENCIES_CFLAGS="$SERVER_DEPENDENCIES_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"\$server_deps\"") >&5
-  ($PKG_CONFIG --exists --print-errors "$server_deps") 2>&5
+    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"mono >= \$MONO_REQUIRED_VERSION glib-2.0 >= \$GLIB_REQUIRED_VERSION \$martin_deps\"") >&5
+  ($PKG_CONFIG --exists --print-errors "mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps") 2>&5
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
-  pkg_cv_SERVER_DEPENDENCIES_CFLAGS=`$PKG_CONFIG --cflags "$server_deps" 2>/dev/null`
+  pkg_cv_SERVER_DEPENDENCIES_CFLAGS=`$PKG_CONFIG --cflags "mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -13163,12 +13160,12 @@ if test -n "$SERVER_DEPENDENCIES_LIBS"; then
     pkg_cv_SERVER_DEPENDENCIES_LIBS="$SERVER_DEPENDENCIES_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"\$server_deps\"") >&5
-  ($PKG_CONFIG --exists --print-errors "$server_deps") 2>&5
+    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"mono >= \$MONO_REQUIRED_VERSION glib-2.0 >= \$GLIB_REQUIRED_VERSION \$martin_deps\"") >&5
+  ($PKG_CONFIG --exists --print-errors "mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps") 2>&5
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
-  pkg_cv_SERVER_DEPENDENCIES_LIBS=`$PKG_CONFIG --libs "$server_deps" 2>/dev/null`
+  pkg_cv_SERVER_DEPENDENCIES_LIBS=`$PKG_CONFIG --libs "mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -13186,14 +13183,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        SERVER_DEPENDENCIES_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$server_deps" 2>&1`
+	        SERVER_DEPENDENCIES_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps" 2>&1`
         else
-	        SERVER_DEPENDENCIES_PKG_ERRORS=`$PKG_CONFIG --print-errors "$server_deps" 2>&1`
+	        SERVER_DEPENDENCIES_PKG_ERRORS=`$PKG_CONFIG --print-errors "mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$SERVER_DEPENDENCIES_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements ($server_deps) were not met:
+	{ { $as_echo "$as_me:$LINENO: error: Package requirements (mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps) were not met:
 
 $SERVER_DEPENDENCIES_PKG_ERRORS
 
@@ -13204,7 +13201,7 @@ Alternatively, you may set the environment variables SERVER_DEPENDENCIES_CFLAGS
 and SERVER_DEPENDENCIES_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 " >&5
-$as_echo "$as_me: error: Package requirements ($server_deps) were not met:
+$as_echo "$as_me: error: Package requirements (mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps) were not met:
 
 $SERVER_DEPENDENCIES_PKG_ERRORS
 
@@ -13272,12 +13269,12 @@ if test -n "$WRAPPER_CFLAGS"; then
     pkg_cv_WRAPPER_CFLAGS="$WRAPPER_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"\$mono_pc >= \$MONO_REQUIRED_VERSION glib-2.0 >= \$GLIB_REQUIRED_VERSION\"") >&5
-  ($PKG_CONFIG --exists --print-errors "$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION") 2>&5
+    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"mono >= \$MONO_REQUIRED_VERSION gthread-2.0 >= \$GLIB_REQUIRED_VERSION\"") >&5
+  ($PKG_CONFIG --exists --print-errors "mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION") 2>&5
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
-  pkg_cv_WRAPPER_CFLAGS=`$PKG_CONFIG --cflags "$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION" 2>/dev/null`
+  pkg_cv_WRAPPER_CFLAGS=`$PKG_CONFIG --cflags "mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -13288,12 +13285,12 @@ if test -n "$WRAPPER_LIBS"; then
     pkg_cv_WRAPPER_LIBS="$WRAPPER_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"\$mono_pc >= \$MONO_REQUIRED_VERSION glib-2.0 >= \$GLIB_REQUIRED_VERSION\"") >&5
-  ($PKG_CONFIG --exists --print-errors "$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION") 2>&5
+    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"mono >= \$MONO_REQUIRED_VERSION gthread-2.0 >= \$GLIB_REQUIRED_VERSION\"") >&5
+  ($PKG_CONFIG --exists --print-errors "mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION") 2>&5
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
-  pkg_cv_WRAPPER_LIBS=`$PKG_CONFIG --libs "$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION" 2>/dev/null`
+  pkg_cv_WRAPPER_LIBS=`$PKG_CONFIG --libs "mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -13311,14 +13308,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        WRAPPER_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION" 2>&1`
+	        WRAPPER_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION" 2>&1`
         else
-	        WRAPPER_PKG_ERRORS=`$PKG_CONFIG --print-errors "$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION" 2>&1`
+	        WRAPPER_PKG_ERRORS=`$PKG_CONFIG --print-errors "mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$WRAPPER_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements ($mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION) were not met:
+	{ { $as_echo "$as_me:$LINENO: error: Package requirements (mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION) were not met:
 
 $WRAPPER_PKG_ERRORS
 
@@ -13329,7 +13326,7 @@ Alternatively, you may set the environment variables WRAPPER_CFLAGS
 and WRAPPER_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 " >&5
-$as_echo "$as_me: error: Package requirements ($mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION) were not met:
+$as_echo "$as_me: error: Package requirements (mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION) were not met:
 
 $WRAPPER_PKG_ERRORS
 
@@ -14511,6 +14508,176 @@ done
 
 
 
+    lib=""
+
+    old_LIBS=$LIBS
+
+    LIBS="-ltermcap"
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+tgetent();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+
+	READLINE_DEPLIBS=$LIBS
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+	LIBS="-lcurses"
+	cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+tgetent();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+
+		READLINE_DEPLIBS=$LIBS
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+		LIBS="-lncurses"
+		cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+tgetent();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+
+			READLINE_DEPLIBS=$LIBS
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+			{ { $as_echo "$as_me:$LINENO: error: Cannot find termcap library" >&5
+$as_echo "$as_me: error: Cannot find termcap library" >&2;}
+   { (exit 1); exit 1; }; }
+
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+
+    LIBS=$old_LIBS
+
+
+
+min_mono_version=72
+symfile_major_version=50
+min_symfile_minor_version=0
+
+
 # Check whether --with-xsp was given.
 if test "${with_xsp+set}" = set; then
   withval=$with_xsp; with_xsp=yes
@@ -14651,7 +14818,7 @@ fi
 if test x$platform != xi386darwin ; then
 { $as_echo "$as_me:$LINENO: checking Whether your Mono is working" >&5
 $as_echo_n "checking Whether your Mono is working... " >&6; }
-old_CFLAGS=$CFLAGS
+old_CFLAGS=$cflags
 CFLAGS=$WRAPPER_CFLAGS
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
@@ -14666,10 +14833,7 @@ int
 main ()
 {
 
-#if MONO_DEBUGGER_MAJOR_VERSION != $debugger_major_version
-#error "Your mono is too old for this version of the debugger."
-#endif
-#if MONO_DEBUGGER_MINOR_VERSION < $min_debugger_minor_version
+#if MONO_DEBUGGER_MAJOR_VERSION < $min_mono_version
 #error "Your mono is too old for this version of the debugger."
 #endif
 #if MONO_SYMBOL_FILE_MAJOR_VERSION != $symfile_major_version
@@ -14721,7 +14885,7 @@ fi
 
 { $as_echo "$as_me:$LINENO: checking Whether attaching is supported in this version of the Mono runtime" >&5
 $as_echo_n "checking Whether attaching is supported in this version of the Mono runtime... " >&6; }
-old_CFLAGS=$CFLAGS
+old_CFLAGS=$cflags
 CFLAGS=$WRAPPER_CFLAGS
 #define MONO_DEBUGGER_MAJOR_VERSION			81
 #define MONO_DEBUGGER_MINOR_VERSION			3
@@ -14822,23 +14986,7 @@ else
 fi
 
 
-if test x$have_mono_trunk = xtrue; then
-
-cat >>confdefs.h <<\_ACEOF
-#define USING_MONO_FROM_TRUNK 1
-_ACEOF
-
-fi
- if test x$have_mono_trunk = xtrue; then
-  MONO_TRUNK_TRUE=
-  MONO_TRUNK_FALSE='#'
-else
-  MONO_TRUNK_TRUE='#'
-  MONO_TRUNK_FALSE=
-fi
-
-
-ac_config_files="$ac_config_files Makefile mono-debugger.pc mono-debugger-frontend.pc interface/Makefile classes/Makefile build/Makefile build/Mono.Debugger.dll.config sysdeps/Makefile sysdeps/bfd/libiberty/Makefile sysdeps/bfd/opcodes/Makefile sysdeps/bfd/Makefile sysdeps/bfd/hosts/Makefile sysdeps/bfd/include/Makefile sysdeps/bfd/include/aout/Makefile sysdeps/bfd/include/coff/Makefile sysdeps/bfd/include/elf/Makefile sysdeps/bfd/include/opcode/Makefile sysdeps/server/Makefile backend/Makefile backend/arch/Makefile backend/mono/Makefile backend/os/Makefile symbolwriter/Makefile languages/Makefile languages/mono/Makefile languages/native/Makefile frontend/Makefile frontend/jay/Makefile test/Makefile test/src/Makefile test/misc/Makefile test/framework/Makefile test/testsuite/Makefile doc/Makefile"
+ac_config_files="$ac_config_files Makefile mono-debugger.pc mono-debugger-frontend.pc interface/Makefile classes/Makefile build/Makefile build/Mono.Debugger.dll.config backend/Makefile backend/server/Makefile backend/arch/Makefile backend/mono/Makefile backend/os/Makefile backend/os/bfd/libiberty/Makefile backend/os/bfd/opcodes/Makefile backend/os/bfd/Makefile backend/os/bfd/hosts/Makefile backend/os/bfd/include/Makefile backend/os/bfd/include/aout/Makefile backend/os/bfd/include/coff/Makefile backend/os/bfd/include/elf/Makefile backend/os/bfd/include/opcode/Makefile symbolwriter/Makefile languages/Makefile languages/mono/Makefile languages/native/Makefile frontend/Makefile frontend/jay/Makefile frontend/libedit/Makefile test/Makefile test/src/Makefile test/misc/Makefile test/framework/Makefile test/testsuite/Makefile doc/Makefile"
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
@@ -15007,6 +15155,13 @@ $as_echo "$as_me: error: conditional \"PLATFORM_X86_64\" was never defined.
 Usually this means the macro was only invoked conditionally." >&2;}
    { (exit 1); exit 1; }; }
 fi
+if test -z "${COMPILING_FROM_SVN_TRUE}" && test -z "${COMPILING_FROM_SVN_FALSE}"; then
+  { { $as_echo "$as_me:$LINENO: error: conditional \"COMPILING_FROM_SVN\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+$as_echo "$as_me: error: conditional \"COMPILING_FROM_SVN\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi
 if test -z "${HAVE_TARGET_MONO_TRUE}" && test -z "${HAVE_TARGET_MONO_FALSE}"; then
   { { $as_echo "$as_me:$LINENO: error: conditional \"HAVE_TARGET_MONO\" was never defined.
 Usually this means the macro was only invoked conditionally." >&5
@@ -15042,13 +15197,6 @@ $as_echo "$as_me: error: conditional \"DISABLED\" was never defined.
 Usually this means the macro was only invoked conditionally." >&2;}
    { (exit 1); exit 1; }; }
 fi
-if test -z "${MONO_TRUNK_TRUE}" && test -z "${MONO_TRUNK_FALSE}"; then
-  { { $as_echo "$as_me:$LINENO: error: conditional \"MONO_TRUNK\" was never defined.
-Usually this means the macro was only invoked conditionally." >&5
-$as_echo "$as_me: error: conditional \"MONO_TRUNK\" was never defined.
-Usually this means the macro was only invoked conditionally." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 
 : ${CONFIG_STATUS=./config.status}
 ac_write_fail=0
@@ -15822,27 +15970,27 @@ do
     "classes/Makefile") CONFIG_FILES="$CONFIG_FILES classes/Makefile" ;;
     "build/Makefile") CONFIG_FILES="$CONFIG_FILES build/Makefile" ;;
     "build/Mono.Debugger.dll.config") CONFIG_FILES="$CONFIG_FILES build/Mono.Debugger.dll.config" ;;
-    "sysdeps/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/Makefile" ;;
-    "sysdeps/bfd/libiberty/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/libiberty/Makefile" ;;
-    "sysdeps/bfd/opcodes/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/opcodes/Makefile" ;;
-    "sysdeps/bfd/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/Makefile" ;;
-    "sysdeps/bfd/hosts/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/hosts/Makefile" ;;
-    "sysdeps/bfd/include/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/include/Makefile" ;;
-    "sysdeps/bfd/include/aout/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/include/aout/Makefile" ;;
-    "sysdeps/bfd/include/coff/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/include/coff/Makefile" ;;
-    "sysdeps/bfd/include/elf/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/include/elf/Makefile" ;;
-    "sysdeps/bfd/include/opcode/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/bfd/include/opcode/Makefile" ;;
-    "sysdeps/server/Makefile") CONFIG_FILES="$CONFIG_FILES sysdeps/server/Makefile" ;;
     "backend/Makefile") CONFIG_FILES="$CONFIG_FILES backend/Makefile" ;;
+    "backend/server/Makefile") CONFIG_FILES="$CONFIG_FILES backend/server/Makefile" ;;
     "backend/arch/Makefile") CONFIG_FILES="$CONFIG_FILES backend/arch/Makefile" ;;
     "backend/mono/Makefile") CONFIG_FILES="$CONFIG_FILES backend/mono/Makefile" ;;
     "backend/os/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/Makefile" ;;
+    "backend/os/bfd/libiberty/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/libiberty/Makefile" ;;
+    "backend/os/bfd/opcodes/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/opcodes/Makefile" ;;
+    "backend/os/bfd/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/Makefile" ;;
+    "backend/os/bfd/hosts/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/hosts/Makefile" ;;
+    "backend/os/bfd/include/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/include/Makefile" ;;
+    "backend/os/bfd/include/aout/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/include/aout/Makefile" ;;
+    "backend/os/bfd/include/coff/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/include/coff/Makefile" ;;
+    "backend/os/bfd/include/elf/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/include/elf/Makefile" ;;
+    "backend/os/bfd/include/opcode/Makefile") CONFIG_FILES="$CONFIG_FILES backend/os/bfd/include/opcode/Makefile" ;;
     "symbolwriter/Makefile") CONFIG_FILES="$CONFIG_FILES symbolwriter/Makefile" ;;
     "languages/Makefile") CONFIG_FILES="$CONFIG_FILES languages/Makefile" ;;
     "languages/mono/Makefile") CONFIG_FILES="$CONFIG_FILES languages/mono/Makefile" ;;
     "languages/native/Makefile") CONFIG_FILES="$CONFIG_FILES languages/native/Makefile" ;;
     "frontend/Makefile") CONFIG_FILES="$CONFIG_FILES frontend/Makefile" ;;
     "frontend/jay/Makefile") CONFIG_FILES="$CONFIG_FILES frontend/jay/Makefile" ;;
+    "frontend/libedit/Makefile") CONFIG_FILES="$CONFIG_FILES frontend/libedit/Makefile" ;;
     "test/Makefile") CONFIG_FILES="$CONFIG_FILES test/Makefile" ;;
     "test/src/Makefile") CONFIG_FILES="$CONFIG_FILES test/src/Makefile" ;;
     "test/misc/Makefile") CONFIG_FILES="$CONFIG_FILES test/misc/Makefile" ;;
diff --git a/configure.in b/configure.in
index 8886327..5518bec 100644
--- a/configure.in
+++ b/configure.in
@@ -2,7 +2,7 @@
 AC_INIT(README)
 AC_CANONICAL_SYSTEM
 AM_CONFIG_HEADER(config.h)
-AM_INIT_AUTOMAKE(mono-debugger, 2.10)
+AM_INIT_AUTOMAKE(mono-debugger, 2.6.3)
 AM_MAINTAINER_MODE
 
 AC_CHECK_TOOL(CC, gcc, gcc)
@@ -106,13 +106,23 @@ AM_PROG_LIBTOOL
 # not 64 bit clean in cross-compile
 AC_CHECK_SIZEOF(void *, 4)
 
-CFLAGS="-g ${CFLAGS} -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs  -Wshadow -Wpointer-arith -Wno-cast-qual -Wcast-align -Wwrite-strings -fno-strict-aliasing"
+CFLAGS='-g -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs  -Wshadow -Wpointer-arith -Wno-cast-qual -Wcast-align -Wwrite-strings -fno-strict-aliasing'
 
 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
 if test "x$PKG_CONFIG" = "xno"; then
 	AC_MSG_ERROR([You need to install pkg-config])
 fi
 
+AC_MSG_CHECKING([whether we're compiling from SVN])
+if test -f "$srcdir/.svn_version" ; then
+	from_svn=yes
+else
+	from_svn=no
+fi
+AC_MSG_RESULT($from_svn)
+
+AM_CONDITIONAL(COMPILING_FROM_SVN, test x$from_svn = xyes)
+
 pkg_config_path=
 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir],
 	if test x$with_crosspkgdir = "x"; then
@@ -135,28 +145,8 @@ PKG_CHECK_MODULES(BASE_DEPENDENCIES, glib-2.0 >= $GLIB_REQUIRED_VERSION)
 AC_SUBST(BASE_DEPENDENCIES_CFLAGS)
 AC_SUBST(BASE_DEPENDENCIES_LIBS)
 
-debugger_major_version=81
-min_debugger_minor_version=0
-symfile_major_version=50
-min_symfile_minor_version=0
-
-AC_MSG_CHECKING([Whether we're using Mono from trunk])
-## Check for Mono from trunk
-if pkg-config --modversion mono-2>/dev/null; then
-	have_mono_trunk=true
-	mono_pc=mono-2
-	min_debugger_minor_version=6
-	server_deps="glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps"
-	AC_MSG_RESULT([yes])
-else
-	have_mono_trunk=false
-	mono_pc=mono
-	server_deps="$mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps"
-	AC_MSG_RESULT([no])
-fi
-
 ## Versions of dependencies
-PKG_CHECK_MODULES(SERVER_DEPENDENCIES, $server_deps)
+PKG_CHECK_MODULES(SERVER_DEPENDENCIES, mono >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION $martin_deps)
 AC_SUBST(SERVER_DEPENDENCIES_CFLAGS)
 AC_SUBST(SERVER_DEPENDENCIES_LIBS)
 
@@ -170,7 +160,7 @@ fi
 CECIL_ASM=`pkg-config --variable=Libraries cecil`
 AC_SUBST(CECIL_ASM)
 
-PKG_CHECK_MODULES(WRAPPER, $mono_pc >= $MONO_REQUIRED_VERSION glib-2.0 >= $GLIB_REQUIRED_VERSION)
+PKG_CHECK_MODULES(WRAPPER, mono >= $MONO_REQUIRED_VERSION gthread-2.0 >= $GLIB_REQUIRED_VERSION)
 AC_SUBST(WRAPPER_CFLAGS)
 AC_SUBST(WRAPPER_LIBS)
 
@@ -272,6 +262,12 @@ AC_HEADER_DIRENT
 AC_CHECK_FUNCS(fcntl getpagesize setitimer sysconf fdopen getuid getgid)
 AC_CHECK_FUNCS(strlcpy strlcat fgetln)
 
+CHECK_READLINE
+
+min_mono_version=72
+symfile_major_version=50
+min_symfile_minor_version=0
+
 AC_ARG_WITH(xsp,
 [  --with-xsp              Enable XSP support (experimental)],
 with_xsp=yes, with_xsp=no)
@@ -292,15 +288,12 @@ AM_CONDITIONAL(HAVE_XSP, test "x$with_xsp" = "xyes")
 #not sure why, but I cannot get this test to pass on OS X.
 if test x$platform != xi386darwin ; then
 AC_MSG_CHECKING([Whether your Mono is working])
-old_CFLAGS=$CFLAGS
+old_CFLAGS=$cflags
 CFLAGS=$WRAPPER_CFLAGS
 AC_TRY_COMPILE([#include <mono/metadata/mono-debug.h>
 #include <mono/metadata/debug-mono-symfile.h>
 ], [
-#if MONO_DEBUGGER_MAJOR_VERSION != $debugger_major_version
-#error "Your mono is too old for this version of the debugger."
-#endif
-#if MONO_DEBUGGER_MINOR_VERSION < $min_debugger_minor_version
+#if MONO_DEBUGGER_MAJOR_VERSION < $min_mono_version
 #error "Your mono is too old for this version of the debugger."
 #endif
 #if MONO_SYMBOL_FILE_MAJOR_VERSION != $symfile_major_version
@@ -317,7 +310,7 @@ if test x$mono_working != xyes; then
 fi
 
 AC_MSG_CHECKING([Whether attaching is supported in this version of the Mono runtime])
-old_CFLAGS=$CFLAGS
+old_CFLAGS=$cflags
 CFLAGS=$WRAPPER_CFLAGS
 #define MONO_DEBUGGER_MAJOR_VERSION			81
 #define MONO_DEBUGGER_MINOR_VERSION			3
@@ -355,11 +348,6 @@ AM_CONDITIONAL(MARTIN_PRIVATE, test x$martin_private = xyes)
 
 AM_CONDITIONAL(DISABLED, false)
 
-if test x$have_mono_trunk = xtrue; then
-   AC_DEFINE([USING_MONO_FROM_TRUNK], [1], [Whether we're using Mono from trunk])
-fi
-AM_CONDITIONAL(MONO_TRUNK, test x$have_mono_trunk = xtrue)
-
 AC_OUTPUT([
 Makefile
 mono-debugger.pc
@@ -368,27 +356,27 @@ interface/Makefile
 classes/Makefile
 build/Makefile
 build/Mono.Debugger.dll.config
-sysdeps/Makefile
-sysdeps/bfd/libiberty/Makefile
-sysdeps/bfd/opcodes/Makefile
-sysdeps/bfd/Makefile
-sysdeps/bfd/hosts/Makefile
-sysdeps/bfd/include/Makefile
-sysdeps/bfd/include/aout/Makefile
-sysdeps/bfd/include/coff/Makefile
-sysdeps/bfd/include/elf/Makefile
-sysdeps/bfd/include/opcode/Makefile
-sysdeps/server/Makefile
 backend/Makefile
+backend/server/Makefile
 backend/arch/Makefile
 backend/mono/Makefile
 backend/os/Makefile
+backend/os/bfd/libiberty/Makefile
+backend/os/bfd/opcodes/Makefile
+backend/os/bfd/Makefile
+backend/os/bfd/hosts/Makefile
+backend/os/bfd/include/Makefile
+backend/os/bfd/include/aout/Makefile
+backend/os/bfd/include/coff/Makefile
+backend/os/bfd/include/elf/Makefile
+backend/os/bfd/include/opcode/Makefile
 symbolwriter/Makefile
 languages/Makefile
 languages/mono/Makefile
 languages/native/Makefile
 frontend/Makefile
 frontend/jay/Makefile
+frontend/libedit/Makefile
 test/Makefile
 test/src/Makefile
 test/misc/Makefile
diff --git a/debian/changelog b/debian/changelog
index d83e1ce..0fb08ff 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+mono-debugger (2.6.3-2.1) unstable; urgency=low
+
+  * Non-maintainer upload.
+  * debian/patches
+    - (CVE-*): New patch. Fix CVE-2010-3369 insecure library loading
+      (grave, security; Closes: #598299).
+
+ -- Jari Aalto <jari.aalto at cante.net>  Mon, 18 Oct 2010 13:01:07 +0300
+
 mono-debugger (2.6.3-2) unstable; urgency=low
 
   * Upload to Debian Unstable
diff --git a/debian/control b/debian/control
index 56b01ca..f4a0f47 100644
--- a/debian/control
+++ b/debian/control
@@ -3,19 +3,23 @@ Section: devel
 Priority: optional
 Maintainer: Debian Mono Group <pkg-mono-group at lists.alioth.debian.org>
 Uploaders: Mirco Bauer <meebey at debian.org>
-Build-Depends: debhelper (>= 7.0.50~),
- dh-autoreconf,
+Build-Depends: debhelper (>= 5),
+ dpatch,
  cli-common-dev (>= 0.4.4),
- mono-devel (>= 2.10),
+ mono-devel (>= 2.6.3),
  nunit-console,
  libnunit-cil-dev,
- libmono-2.0-dev,
+ autoconf,
+ automake,
+ autotools-dev,
+ libtool,
+ libmono-dev (>= 2.0),
  libglib2.0-dev,
  libreadline-dev
-Standards-Version: 3.9.1
+Standards-Version: 3.8.4
 Homepage: http://www.mono-project.com/Debugger
-Vcs-Git: git://git.debian.org/git/pkg-mono/packages/mono-debugger/
-Vcs-Browser: http://git.debian.org/?p=pkg-mono/packages/mono-debugger.git
+Vcs-Svn: svn://svn.debian.org/pkg-mono/mono-debugger/trunk
+Vcs-Browser: http://svn.debian.org/wsvn/pkg-mono/mono-debugger/trunk/
 
 Package: mono-debugger
 Architecture: i386 amd64
diff --git a/debian/patches/00list b/debian/patches/00list
new file mode 100644
index 0000000..f38a32a
--- /dev/null
+++ b/debian/patches/00list
@@ -0,0 +1,3 @@
+use_real_nunit
+fix_dllmap
+cve-2010-3369--bug598299
diff --git a/debian/patches/cve-2010-3369--bug598299.dpatch b/debian/patches/cve-2010-3369--bug598299.dpatch
new file mode 100644
index 0000000..7704d1c
--- /dev/null
+++ b/debian/patches/cve-2010-3369--bug598299.dpatch
@@ -0,0 +1,68 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## /tmp/CVE-2010-3369--bug598299.patch.dpatch by jaalto <jari.aalto at cante.net>
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: 
+## DP: Author: Jari Aalto <jari.aalto at cante.net>
+## DP: 
+## DP: 
+## DP: 
+## DP:     
+## DP:     Signed-off-by: Jari Aalto <jari.aalto at cante.net>
+
+ at DPATCH@
+
+diff --git a/build/mdb-symbolreader.in b/build/mdb-symbolreader.in
+old mode 100644
+new mode 100755
+index 7138bd0..627c2c1
+--- a/build/mdb-symbolreader.in
++++ b/build/mdb-symbolreader.in
+@@ -1,3 +1,18 @@
+ #!/bin/sh
+-export LD_LIBRARY_PATH="@libdir@:${LD_LIBRARY_PATH}"
+-exec @mono@ --debug @twodir@/mdb-symbolreader.exe $*
++
++Pathclean ()
++{
++   # Vulnerability fix for insecure path content
++   # Make sure "::", "^:" or ":$" is not left in path arg $1
++
++   local tmp
++   tmp=$(echo "$1" | sed -e 's/::\+// ; s/^:// ; s/:$//' )
++
++   [ "$tmp" ] && echo "$tmp"
++}
++
++LD_LIBRARY_PATH="@libdir@${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
++LD_LIBRARY_PATH=$(Pathclean "$LD_LIBRARY_PATH")
++export LD_LIBRARY_PATH
++
++exec @mono@ --debug @twodir@/mdb-symbolreader.exe "$@"
+diff --git a/build/mdb.in b/build/mdb.in
+old mode 100644
+new mode 100755
+index 12da6c3..8546d0b
+--- a/build/mdb.in
++++ b/build/mdb.in
+@@ -1,3 +1,18 @@
+ #!/bin/sh
+-export LD_LIBRARY_PATH="@libdir@:${LD_LIBRARY_PATH}"
+-exec @mono@ --debug @twodir@/mdb.exe $*
++
++Pathclean ()
++{
++   # Vulnerability fix for insecure path content
++   # Make sure "::", "^:" or ":$" is not left in path arg $1
++
++   local tmp
++   tmp=$(echo "$1" | sed -e 's/::\+// ; s/^:// ; s/:$//' )
++
++   [ "$tmp" ] && echo "$tmp"
++}
++
++LD_LIBRARY_PATH="@libdir@${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
++LD_LIBRARY_PATH=$(Pathclean "$LD_LIBRARY_PATH")
++export LD_LIBRARY_PATH
++
++exec @mono@ --debug @twodir@/mdb.exe "$@"
diff --git a/debian/patches/fix_Makefile.am.dpatch b/debian/patches/fix_Makefile.am.dpatch
new file mode 100644
index 0000000..8db9be3
--- /dev/null
+++ b/debian/patches/fix_Makefile.am.dpatch
@@ -0,0 +1,19 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## fix_Makefile.am.dpatch by Mirco Bauer <meebey at meebey.net>
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: No description.
+
+ at DPATCH@
+diff -urNad mono-debugger-0.12+svn.r59605~/build/Makefile.am mono-debugger-0.12+svn.r59605/build/Makefile.am
+--- mono-debugger-0.12+svn.r59605~/build/Makefile.am	2006-04-18 20:02:56.000000000 +0200
++++ mono-debugger-0.12+svn.r59605/build/Makefile.am	2006-04-18 20:06:41.000000000 +0200
+@@ -8,7 +8,7 @@
+ 
+ noinst_SCRIPTS = Mono.Debugger.dll Mono.Debugger.Frontend.dll Mono.Debugger.Test.dll
+ 
+-EXTRA_DATA = Mono.Debugger.Cecil.dll
++#EXTRA_DATA = Mono.Debugger.Cecil.dll
+ 
+ LANGUAGE_SPECIFIC_FILES = \
+ 	$(top_builddir)/frontend/CSharpExpressionParser.cs	\
diff --git a/debian/patches/fix_build_with_libc_r98147_r98369.dpatch b/debian/patches/fix_build_with_libc_r98147_r98369.dpatch
new file mode 100644
index 0000000..eda9ae7
--- /dev/null
+++ b/debian/patches/fix_build_with_libc_r98147_r98369.dpatch
@@ -0,0 +1,58 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## fix_build_with_libc_r98147.dpatch by Mirco Bauer <meebey at debian.org>
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: No description.
+
+ at DPATCH@
+diff -urNad mono-debugger-0.60+dfsg~/backend/server/i386-arch.h mono-debugger-0.60+dfsg/backend/server/i386-arch.h
+--- mono-debugger-0.60+dfsg~/backend/server/i386-arch.h	2008-06-01 15:16:40.000000000 +0200
++++ mono-debugger-0.60+dfsg/backend/server/i386-arch.h	2008-06-01 15:17:40.000000000 +0200
+@@ -7,10 +7,10 @@
+ 
+ #if defined(__i386__)
+ 
+-#include <asm/user.h>
++#include <sys/user.h>
+ 
+ #define INFERIOR_REGS_TYPE	struct user_regs_struct
+-#define INFERIOR_FPREGS_TYPE	struct user_i387_struct
++#define INFERIOR_FPREGS_TYPE	struct user_fpregs_struct
+ 
+ #define INFERIOR_REG_EIP(r)	r.eip
+ #define INFERIOR_REG_ESP(r)	r.esp
+@@ -23,12 +23,12 @@
+ #define INFERIOR_REG_EDI(r)	r.edi
+ #define INFERIOR_REG_EFLAGS(r)	r.eflags
+ #define INFERIOR_REG_ESP(r)	r.esp
+-#define INFERIOR_REG_FS(r)	r.fs
+-#define INFERIOR_REG_ES(r)	r.es
+-#define INFERIOR_REG_DS(r)	r.ds
+-#define INFERIOR_REG_CS(r)	r.cs
+-#define INFERIOR_REG_SS(r)	r.ss
+-#define INFERIOR_REG_GS(r)	r.gs
++#define INFERIOR_REG_FS(r)	r.xfs
++#define INFERIOR_REG_ES(r)	r.xes
++#define INFERIOR_REG_DS(r)	r.xds
++#define INFERIOR_REG_CS(r)	r.xcs
++#define INFERIOR_REG_SS(r)	r.xss
++#define INFERIOR_REG_GS(r)	r.xgs
+ 
+ G_END_DECLS
+ 
+diff -urNad mono-debugger-0.60+dfsg~/backend/server/x86_64-arch.h mono-debugger-0.60+dfsg/backend/server/x86_64-arch.h
+--- mono-debugger-0.60+dfsg~/backend/server/x86_64-arch.h	2008-06-01 15:16:40.000000000 +0200
++++ mono-debugger-0.60+dfsg/backend/server/x86_64-arch.h	2008-06-01 15:17:25.000000000 +0200
+@@ -7,10 +7,10 @@
+ 
+ #if defined(__x86_64__)
+ 
+-#include <asm/user.h>
++#include <sys/user.h>
+ 
+ #define INFERIOR_REGS_TYPE	struct user_regs_struct
+-#define INFERIOR_FPREGS_TYPE	struct user_i387_struct
++#define INFERIOR_FPREGS_TYPE	struct user_fpregs_struct
+ 
+ #define INFERIOR_REG_R15(r)	r.r15
+ #define INFERIOR_REG_R14(r)	r.r14
diff --git a/debian/patches/fix_dllmap.patch b/debian/patches/fix_dllmap.dpatch
old mode 100755
new mode 100644
similarity index 100%
rename from debian/patches/fix_dllmap.patch
rename to debian/patches/fix_dllmap.dpatch
diff --git a/debian/patches/link_system_libs.dpatch b/debian/patches/link_system_libs.dpatch
new file mode 100644
index 0000000..393e707
--- /dev/null
+++ b/debian/patches/link_system_libs.dpatch
@@ -0,0 +1,110 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## link_system_libs.dpatch by Mirco Bauer <meebey at debian.org>
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: No description.
+
+ at DPATCH@
+diff -urNad mono-debugger-0.60+dfsg~/build/Makefile.am mono-debugger-0.60+dfsg/build/Makefile.am
+--- mono-debugger-0.60+dfsg~/build/Makefile.am	2007-12-23 01:56:41.000000000 +0100
++++ mono-debugger-0.60+dfsg/build/Makefile.am	2007-12-23 01:57:01.000000000 +0100
+@@ -12,7 +12,6 @@
+ 	Mono.Debugger.Frontend.dll			\
+ 	Mono.Debugger.Test.dll
+ 
+-EXTRA_DATA = Mono.Debugger.Cecil.dll
+ 
+ LANGUAGE_SPECIFIC_FILES = \
+ 	$(top_builddir)/frontend/CSharpExpressionParser.cs	\
+@@ -61,7 +60,7 @@
+ 	-r:Mono.GetOptions				\
+ 	-r:Mono.CompilerServices.SymbolWriter		\
+ 	-r:System.Runtime.Serialization.Formatters.Soap	\
+-	-r:$(srcdir)/Mono.Debugger.Cecil.dll		\
++	$$(pkg-config --libs mono-cecil)		\
+ 	-r:./Mono.Debugger.dll
+ 
+ MDB_DEPS = \
+@@ -77,7 +76,7 @@
+ 	-r:./Mono.Debugger.Frontend.dll			\
+ 	$$(pkg-config --libs nunit)
+ 
+-Mono.Debugger.Backend.dll: Makefile $(srcdir)/Mono.Debugger.Cecil.dll $(BACKEND_SRCLIST) Mono.Debugger.dll
++Mono.Debugger.Backend.dll: Makefile $(BACKEND_SRCLIST) Mono.Debugger.dll
+ 	$(MCS) -target:library -out:Mono.Debugger.Backend.dll $(MCS_FLAGS) -keyfile:$(top_srcdir)/build/mono.snk -resource:$(top_srcdir)/classes/DebuggerConfiguration.xsd,DebuggerConfiguration $(BACKEND_DEPS) $(BACKEND_SRCLIST)
+ 
+ Mono.Debugger.dll: Makefile $(INTERFACE_SRCLIST)
+@@ -114,21 +113,18 @@
+ 
+ EXTRA_DIST = \
+ 	mdb.in mono.snk AssemblyInfo.cs.in Mono.Debugger.dll.config.in \
+-	Mono.Debugger.Cecil.dll
+ 
+ mdb: mdb.in Makefile
+ 	sed -e 's^\@onedir\@^$(onedir)^g' < $(srcdir)/mdb.in > mdb.tmp \
+ 	&& mv mdb.tmp mdb 
+ 
+ install-data-local:
+-	$(GACUTIL) /i $(srcdir)/Mono.Debugger.Cecil.dll /f $(GACUTIL_FLAGS) || exit 1;
+ 	$(GACUTIL) /i Mono.Debugger.Backend.dll /f $(GACUTIL_FLAGS) || exit 1;
+ 	$(GACUTIL) /i Mono.Debugger.dll /f $(GACUTIL_FLAGS) || exit 1;
+ 
+ uninstall-local:
+ 	$(GACUTIL) /u Mono.Debugger $(GACUTIL_FLAGS) || exit 1;
+ 	$(GACUTIL) /u Mono.Debugger.Backend $(GACUTIL_FLAGS) || exit 1;
+-	$(GACUTIL) /u Mono.Debugger.Cecil $(GACUTIL_FLAGS) || exit 1;
+ 
+ NUNIT_CONSOLE_FLAGS =
+ 
+diff -urNad mono-debugger-0.60+dfsg~/build/Makefile.in mono-debugger-0.60+dfsg/build/Makefile.in
+--- mono-debugger-0.60+dfsg~/build/Makefile.in	2007-12-23 01:56:41.000000000 +0100
++++ mono-debugger-0.60+dfsg/build/Makefile.in	2007-12-23 01:57:12.000000000 +0100
+@@ -201,7 +201,6 @@
+ 	Mono.Debugger.Frontend.dll			\
+ 	Mono.Debugger.Test.dll
+ 
+-EXTRA_DATA = Mono.Debugger.Cecil.dll
+ LANGUAGE_SPECIFIC_FILES = \
+ 	$(top_builddir)/frontend/CSharpExpressionParser.cs	\
+ 	$(top_srcdir)/frontend/CSharpTokenizer.cs
+@@ -249,7 +248,7 @@
+ 	-r:Mono.GetOptions				\
+ 	-r:Mono.CompilerServices.SymbolWriter		\
+ 	-r:System.Runtime.Serialization.Formatters.Soap	\
+-	-r:$(srcdir)/Mono.Debugger.Cecil.dll		\
++	$$(pkg-config --libs mono-cecil)		\
+ 	-r:./Mono.Debugger.dll
+ 
+ MDB_DEPS = \
+@@ -273,7 +272,6 @@
+ 
+ EXTRA_DIST = \
+ 	mdb.in mono.snk AssemblyInfo.cs.in Mono.Debugger.dll.config.in \
+-	Mono.Debugger.Cecil.dll
+ 
+ NUNIT_CONSOLE_FLAGS = 
+ all: all-am
+@@ -493,7 +491,7 @@
+ 	uninstall-binSCRIPTS uninstall-local uninstall-oneSCRIPTS
+ 
+ 
+-Mono.Debugger.Backend.dll: Makefile $(srcdir)/Mono.Debugger.Cecil.dll $(BACKEND_SRCLIST) Mono.Debugger.dll
++Mono.Debugger.Backend.dll: Makefile $(BACKEND_SRCLIST) Mono.Debugger.dll
+ 	$(MCS) -target:library -out:Mono.Debugger.Backend.dll $(MCS_FLAGS) -keyfile:$(top_srcdir)/build/mono.snk -resource:$(top_srcdir)/classes/DebuggerConfiguration.xsd,DebuggerConfiguration $(BACKEND_DEPS) $(BACKEND_SRCLIST)
+ 
+ Mono.Debugger.dll: Makefile $(INTERFACE_SRCLIST)
+@@ -526,14 +524,12 @@
+ 	&& mv mdb.tmp mdb 
+ 
+ install-data-local:
+-	$(GACUTIL) /i $(srcdir)/Mono.Debugger.Cecil.dll /f $(GACUTIL_FLAGS) || exit 1;
+ 	$(GACUTIL) /i Mono.Debugger.Backend.dll /f $(GACUTIL_FLAGS) || exit 1;
+ 	$(GACUTIL) /i Mono.Debugger.dll /f $(GACUTIL_FLAGS) || exit 1;
+ 
+ uninstall-local:
+ 	$(GACUTIL) /u Mono.Debugger $(GACUTIL_FLAGS) || exit 1;
+ 	$(GACUTIL) /u Mono.Debugger.Backend $(GACUTIL_FLAGS) || exit 1;
+-	$(GACUTIL) /u Mono.Debugger.Cecil $(GACUTIL_FLAGS) || exit 1;
+ 
+ check-local: Mono.Debugger.Test.dll $(TEST_CASE_SRCLIST)
+ 	LD_LIBRARY_PATH="$(top_builddir)/backend/server/.libs:$$LD_LIBRARY_PATH" $(NUNIT_CONSOLE) $(NUNIT_CONSOLE_FLAGS) /output:TestResult.log /exclude:NotWorking /xml:TestResult.xml Mono.Debugger.Test.dll || ok=false; \
diff --git a/debian/patches/lower_required_mono_version.dpatch b/debian/patches/lower_required_mono_version.dpatch
new file mode 100644
index 0000000..8482785
--- /dev/null
+++ b/debian/patches/lower_required_mono_version.dpatch
@@ -0,0 +1,19 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## lower_required_mono_version.dpatch by Mirco Bauer <meebey at meebey.net>
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: No description.
+
+ at DPATCH@
+diff -urNad mono-debugger-0.12+svn.r59605~/configure.in mono-debugger-0.12+svn.r59605/configure.in
+--- mono-debugger-0.12+svn.r59605~/configure.in	2006-04-18 20:02:56.000000000 +0200
++++ mono-debugger-0.12+svn.r59605/configure.in	2006-04-18 20:08:42.000000000 +0200
+@@ -136,7 +136,7 @@
+ 
+ ## Versions of dependencies
+ GLIB_REQUIRED_VERSION=2.0.0
+-MONO_REQUIRED_VERSION=1.1.15
++MONO_REQUIRED_VERSION=1.1.13.6
+ 
+ 
+ PKG_CHECK_MODULES(BASE_DEPENDENCIES, glib-2.0 >= $GLIB_REQUIRED_VERSION)
diff --git a/debian/patches/series b/debian/patches/series
deleted file mode 100644
index f72ab6e..0000000
--- a/debian/patches/series
+++ /dev/null
@@ -1,2 +0,0 @@
-use_real_nunit.patch
-fix_dllmap.patch
diff --git a/debian/patches/use_real_nunit.patch b/debian/patches/use_real_nunit.dpatch
old mode 100755
new mode 100644
similarity index 100%
rename from debian/patches/use_real_nunit.patch
rename to debian/patches/use_real_nunit.dpatch
diff --git a/debian/rules b/debian/rules
index a5662de..ed0a629 100755
--- a/debian/rules
+++ b/debian/rules
@@ -9,24 +9,79 @@ DEB_VERSION = $(shell dpkg-parsechangelog -l$(DEBIAN_DIR)/changelog | grep ^Vers
 DEB_SOURCE_NAME = $(shell dpkg-parsechangelog -l$(DEBIAN_DIR)/changelog | grep ^Source | cut -d" " -f2)
 VERSION = $(shell echo $(DEB_VERSION) | cut -d"-" -f1 | sed 's/+dfsg.*//')
 
-include /usr/share/cli-common/cli.make
+include /usr/share/dpatch/dpatch.make
 
-override_dh_auto_configure:
-	dh_auto_configure -- --prefix=/usr MCS=/usr/bin/mono-csc
+CFLAGS = -Wall -g
 
-override_dh_install:
-	dh_install
+ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
+	CFLAGS += -O0
+else
+	CFLAGS += -O2
+endif
+
+configure: configure-stamp
+configure-stamp: patch-stamp
+	dh_testdir
+
+	libtoolize
+	aclocal
+	autoconf
+	automake --add-missing --copy	
+
+	./configure --prefix=/usr MCS=/usr/bin/mono-csc
+	touch configure-stamp
+
+build: build-stamp
+build-stamp: configure-stamp
+	dh_testdir
+	$(MAKE)
+	touch build-stamp
+
+clean: clean-patched unpatch
+clean-patched:
+	dh_testdir
+	dh_testroot
+	rm -f build-stamp configure-stamp
+	rm -fr autom4te.cache
+	[ ! -f Makefile ] || $(MAKE) distclean
+	find . -name "Makefile.in" | xargs rm -fr
+	dh_clean config.sub config.guess aclocal.m4
+
+install: build
+	dh_testdir
+	dh_testroot
+	dh_clean -k 
+	dh_installdirs
+	$(MAKE) install DESTDIR=$(CURDIR)/debian/mono-debugger
 	cp $(CURDIR)/debian/mdb.exe.config $(CURDIR)/debian/mono-debugger/usr/lib/mono/2.0/
 	rm $(CURDIR)/debian/mono-debugger/usr/lib/*.so
 	rm $(CURDIR)/debian/mono-debugger/usr/lib/*.la
 
-override_dh_makeshlibs:
-	dh_makeshlibs -V
+binary-indep: build install
 
-override_dh_makeclilibs:
+binary-arch: build install
+	dh_testdir
+	dh_testroot
+	dh_installchangelogs ChangeLog
+	dh_installdocs
+	dh_installexamples
+	dh_install
+	dh_installman
+	dh_link
+	dh_strip
+	dh_compress
+	dh_fixperms
+	dh_clifixperms
+	dh_makeshlibs -V
 	dh_makeclilibs -r
+	dh_installdeb
+	dh_shlibdeps
+	dh_clideps -d
+	dh_gencontrol
+	dh_md5sums
+	dh_builddeb
 
-override_dh_auto_test:
+binary: binary-indep binary-arch
 
 get-orig-source:
 	uscan \
@@ -37,6 +92,8 @@ get-orig-source:
 		--destdir . \
 		--force-download \
 		--rename
+	bzcat ./$(DEB_SOURCE_NAME)_$(VERSION).orig.tar.bz2 | \
+		gzip -9fn -c - > ./$(DEB_SOURCE_NAME)_$(VERSION).orig.tar.gz
+	rm ./$(DEB_SOURCE_NAME)_$(VERSION).orig.tar.bz2
 
-%:
-	dh --with autoreconf $@
+.PHONY: build clean binary-indep binary-arch binary install configure
diff --git a/debian/source/format b/debian/source/format
deleted file mode 100644
index 163aaf8..0000000
--- a/debian/source/format
+++ /dev/null
@@ -1 +0,0 @@
-3.0 (quilt)
diff --git a/doc/Makefile.in b/doc/Makefile.in
index 042c341..06502aa 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -127,6 +127,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/frontend/Command.cs b/frontend/Command.cs
index bc094af..ff3ab15 100644
--- a/frontend/Command.cs
+++ b/frontend/Command.cs
@@ -83,9 +83,7 @@ namespace Mono.Debugger.Frontend
 			RegisterAlias   ("r", typeof (RunCommand));
 			RegisterCommand ("start", typeof (StartCommand));
 			RegisterCommand ("attach", typeof (AttachCommand));
-#if DISABLED
 			RegisterCommand ("core", typeof (OpenCoreFileCommand));
-#endif
 			RegisterCommand ("about", typeof (AboutCommand));
 			RegisterCommand ("lookup", typeof (LookupCommand));
 			RegisterCommand ("return", typeof (ReturnCommand));
@@ -142,17 +140,17 @@ namespace Mono.Debugger.Frontend
 		}
 
 		/* override this to provide command specific completion */
-		public virtual string[] Complete (Engine e, string text)
+		public virtual void Complete (Engine e, string text, int start, int end)
 		{
 			if (text.StartsWith ("-")) {
 				/* do our super cool argument completion on the command's
 				 * properties, if there are any.
 				 */
-				return e.Completer.ArgumentCompleter (GetType(), text);
+				e.Completer.ArgumentCompleter (GetType(), text, start, end);
 			}
 			else {
 				/* otherwise punt */
-				return e.Completer.NoopCompleter (text);
+				e.Completer.NoopCompleter (text, start, end);
 			}
 		}
 	}
@@ -1106,9 +1104,9 @@ namespace Mono.Debugger.Frontend
 			return file;
 		}
 
-                public override string[] Complete (Engine e, string text)
+                public override void Complete (Engine e, string text, int start, int end)
 		{
-			return e.Completer.FilenameCompleter (text);
+			e.Completer.FilenameCompleter (text, start, end);
                 }
 
 		// IDocumentableCommand
@@ -1177,9 +1175,9 @@ namespace Mono.Debugger.Frontend
 			}
 		}
 
-                public override string[] Complete (Engine e, string text)
+                public override void Complete (Engine e, string text, int start, int end)
 		{
-			return e.Completer.FilenameCompleter (text);
+			e.Completer.FilenameCompleter (text, start, end);
                 }
 
 		// IDocumentableCommand
@@ -1709,7 +1707,6 @@ namespace Mono.Debugger.Frontend
 		public string Documentation { get { return ""; } }
 	}
 
-#if DISABLED
 	public class OpenCoreFileCommand : DebuggerCommand, IDocumentableCommand
 	{
 		protected override bool DoResolve (ScriptingContext context)
@@ -1744,7 +1741,6 @@ namespace Mono.Debugger.Frontend
 		public string Description { get { return "Start debugged program."; } }
 		public string Documentation { get { return ""; } }
 	}
-#endif
 
 	public class KillCommand : ProcessCommand, IDocumentableCommand
 	{
@@ -1861,7 +1857,7 @@ namespace Mono.Debugger.Frontend
 			return subcommand.Execute (context);
 		}
 
-                public override string[] Complete (Engine e, string text)
+                public override void Complete (Engine e, string text, int start, int end)
 		{
 			// this doesn't quite work yet.  in the end it
 			// should allow completion of subcommand arguments,
@@ -1877,7 +1873,7 @@ namespace Mono.Debugger.Frontend
 				 * completer. */
 				Type subcommand_type = (Type)subcommand_type_hash[(string) Args[0]];
 				if (subcommand_type == null) {
-					return e.Completer.NoopCompleter (text);
+					e.Completer.NoopCompleter (text, start, end);
 				}
 				else {
 					/* copied from above */
@@ -1887,17 +1883,19 @@ namespace Mono.Debugger.Frontend
 						new_args.Add (Args [i]);
 					subcommand.Args = new_args;
 
-					return subcommand.Complete (e, text);
+					subcommand.Complete (e, text, start, end);
 				}
+
+				return;
 			}
 
 			if (subcommand_type_hash.Count == 0) {
-				return e.Completer.NoopCompleter (text);
+				e.Completer.NoopCompleter (text, start, end);
 			}
 			else {
 				string[] haystack = new string[subcommand_type_hash.Count];
 				subcommand_type_hash.Keys.CopyTo (haystack, 0);
-				return e.Completer.StringsCompleter (haystack, text);
+				e.Completer.StringsCompleter (haystack, text, start, end);
 			}
                 }
 	}
@@ -1978,11 +1976,11 @@ namespace Mono.Debugger.Frontend
 				return null;
 			}
 
-			public override string[] Complete (Engine e, string text)
+			public override void Complete (Engine e, string text, int start, int end)
 			{
 				DebuggerEngine engine = (DebuggerEngine) e;
 			  
-				return e.Completer.StringsCompleter (engine.Interpreter.GetStyleNames(), text);
+				e.Completer.StringsCompleter (engine.Interpreter.GetStyleNames(), text, start, end);
 			}
 		}
 #endregion
@@ -3503,14 +3501,14 @@ namespace Mono.Debugger.Frontend
 			return null;
 		}
 
-                public override string[] Complete (Engine e, string text)
+                public override void Complete (Engine e, string text, int start, int end)
 		{
 			if (text.StartsWith ("-")) {
-				return e.Completer.ArgumentCompleter (GetType(), text);
+				e.Completer.ArgumentCompleter (GetType(), text, start, end);
 			}
 			else {
 				/* attempt filename completion */
-				return e.Completer.FilenameCompleter (text);
+				e.Completer.FilenameCompleter (text, start, end);
 			}
 		}
 
@@ -3597,10 +3595,10 @@ namespace Mono.Debugger.Frontend
 			return null;
 		}
 
-                public override string[] Complete (Engine e, string text) {
+                public override void Complete (Engine e, string text, int start, int end) {
 			/* arguments to the "help" command are commands
 			 * themselves, so complete against them. */
-			return e.Completer.CommandCompleter (text);
+			e.Completer.CommandCompleter (text, start, end);
                 }
 
 		// IDocumentableCommand
@@ -3872,7 +3870,7 @@ namespace Mono.Debugger.Frontend
 					config.RedirectOutput = enable;
 					break;
 
-				case "stop-daemon":
+				case "stop-daemon-threads":
 					require_expert_mode ();
 					if (enable)
 						config.ThreadingModel |= ThreadingModel.StopDaemonThreads;
@@ -3880,7 +3878,7 @@ namespace Mono.Debugger.Frontend
 						config.ThreadingModel &= ~ThreadingModel.StopDaemonThreads;
 					break;
 
-				case "stop-immutable":
+				case "stop-immutable-threads":
 					require_expert_mode ();
 					if (enable)
 						config.ThreadingModel |= ThreadingModel.StopImmutableThreads;
@@ -3943,10 +3941,10 @@ namespace Mono.Debugger.Frontend
 			process.WaitForExit ();
 		}
 
-                public override string[] Complete (Engine e, string text)
+                public override void Complete (Engine e, string text, int start, int end)
 		{
 			/* attempt filename completion */
-			return e.Completer.FilenameCompleter (text);
+			e.Completer.FilenameCompleter (text, start, end);
 		}
 
 		// IDocumentableCommand
diff --git a/frontend/Completer.cs b/frontend/Completer.cs
index 6aa74eb..0674f28 100644
--- a/frontend/Completer.cs
+++ b/frontend/Completer.cs
@@ -1,15 +1,11 @@
 using System;
+using System.Collections;
 using System.IO;
-using System.Linq;
 using System.Reflection;
-using System.Collections;
-using System.Collections.Generic;
 using System.Runtime.InteropServices;
 
 namespace Mono.Debugger.Frontend
 {
-	using Mono.Terminal;
-
 	public class Completer {
 		private Engine engine;
 
@@ -17,55 +13,55 @@ namespace Mono.Debugger.Frontend
 			this.engine = engine;
 		}
 
-		public LineEditor.Completion Complete (string text, int start)
-		{
-			if (start == 0)
-				return new LineEditor.Completion ("", CommandCompleter (text));
-
-			string command;
-
-			int ptr = 0;
-			while (!Char.IsWhiteSpace (text[ptr]))
-				++ptr;
-
-			command = text.Substring (0, ptr);
-			text = text.Substring (ptr + 1);
-
-			Command c = engine.Get (command, null);
-			if (c == null)
-				return null;
-
-			var completion = c.Complete (engine, text);
-			if (completion == null)
-				return null;
-
-			var choices = new List<string> (completion);
-
-			string prefix = ComputeMCP (choices, text);
-			var results = choices.Select (k => k.Substring (prefix.Length)).ToArray ();
-
-			return new LineEditor.Completion (prefix, results);
+		/* This method gets installed as the LineReader completion
+		 * delegate.  It completes commands at the start of the
+		 * line, and does command specific completion for
+		 * arguments. */
+		public void CompletionHandler (string text, int start, int end) {
+			if (start == 0) {
+				CommandCompleter (text, start, end);
+			}
+			else {
+				/* we look up the command in the
+				 * current line buffer and call that
+				 * command's completion generator to
+				 * generate the list of strings. 
+				 */
+
+				string line = LineReader.CurrentLine;
+				string command;
+
+				int ptr = 0;
+				while (!Char.IsWhiteSpace (line[ptr]))
+					++ptr;
+
+				command = line.Substring (0, ptr);
+				Command c = engine.Get (command, null);
+				if (c != null) {
+					c.Complete (engine, text, start, end);
+				}
+			}
 		}
 
-		string ComputeMCP (List<string> choices, string initial_prefix)
+		string ComputeMCP (ArrayList choices, string initial_prefix)
 		{
-			string s = choices[0];
+			string s = (string)choices[0];
 			int maxlen = s.Length;
 
 			for (int i = 1; i < choices.Count; i ++) {
-				if (maxlen > choices[i].Length)
-					maxlen = choices[i].Length;
+				if (maxlen > ((string)choices[i]).Length)
+					maxlen = ((string)choices[i]).Length;
 			}
 			s = s.Substring (0, maxlen);
 
-			for (int l = initial_prefix.Length; l < maxlen; l++) {
+			for (int l = initial_prefix.Length; l < maxlen; l ++) {
 				for (int i = 1; i < choices.Count; i ++) {
-					string test = choices[i];
+					string test = (string)choices[i];
 					if (test[l] != s[l])
 						return s.Substring (0, l);
 				}
 			}
- 
+
 			return s;
 		}
 
@@ -77,35 +73,68 @@ namespace Mono.Debugger.Frontend
 		 * (but not aliases) that have been registered with the
 		 * engine.  This is used by the CompletionHandler itself to
 		 * complete commands at the beginning of the line. */
-		public string[] CommandCompleter (string text)
+		public void CommandCompleter (string text, int start, int end)
 		{ 
 			/* complete possible commands */
-			var matches = new List<string> ();
+			ArrayList matched_commands = new ArrayList();
 			string[] match_strings = null;
 
 			foreach (string key in engine.Commands.Keys) {
 				if (key.StartsWith (text))
-					matches.Add (key);
+					matched_commands.Add (key);
+			}
+
+
+			if (matched_commands.Count > 0) {
+				if (matched_commands.Count > 1) {
+					/* always add the prefix at
+					 * the beginning when we have
+					 * > 1 matches, so that
+					 * readline will display the
+					 * matches. */
+					matched_commands.Insert (0, ComputeMCP (matched_commands, text));
+				}
+
+				match_strings = new string [matched_commands.Count + 1];
+				matched_commands.CopyTo (match_strings);
+				match_strings [matched_commands.Count] = null;
 			}
 
-			return matches.ToArray ();
+			LineReader.SetCompletionMatches (match_strings);
 		}
 
-		public string[] StringsCompleter (string[] haystack, string text)
+		public void StringsCompleter (string[] haystack, string text, int start, int end)
 		{
-			var matches = new List<string> ();
+			ArrayList matches = new ArrayList();
 
 			foreach (string s in haystack) {
 				if (s.ToLower().StartsWith (text))
 					matches.Add (s.ToLower());
 			}
 
-			return matches.ToArray ();
+			string[] match_strings = null;
+
+			if (matches.Count > 0) {
+				if (matches.Count > 1) {
+					/* always add the prefix at
+					 * the beginning when we have
+					 * > 1 matches, so that
+					 * readline will display the
+					 * matches. */
+					matches.Insert (0, ComputeMCP (matches, text));
+				}
+
+				match_strings = new string [matches.Count + 1];
+				matches.CopyTo (match_strings);
+				match_strings [matches.Count] = null;
+			}
+
+			LineReader.SetCompletionMatches (match_strings);
 		}
 
-		public string[] ArgumentCompleter (Type t, string text)
+		public void ArgumentCompleter (Type t, string text, int start, int end)
 		{
-			var matches = new List<string> ();
+			ArrayList matched_args = new ArrayList();
 			PropertyInfo [] pi = t.GetProperties ();
 
 			foreach (PropertyInfo p in pi) {
@@ -113,21 +142,40 @@ namespace Mono.Debugger.Frontend
 					continue;
 				if (text == "-" ||
 				    p.Name.ToLower().StartsWith (text.Substring (1))) {
-					matches.Add ("-" + p.Name.ToLower());
+					matched_args.Add ("-" + p.Name.ToLower());
+				}
+			}
+
+			string[] match_strings = null;
+
+			if (matched_args.Count > 0) {
+				if (matched_args.Count > 1) {
+					/* always add the prefix at
+					 * the beginning when we have
+					 * > 1 matches, so that
+					 * readline will display the
+					 * matches. */
+					matched_args.Insert (0, ComputeMCP (matched_args, text));
 				}
+
+				match_strings = new string [matched_args.Count + 1];
+				matched_args.CopyTo (match_strings);
+				match_strings [matched_args.Count] = null;
 			}
 
-			return matches.ToArray ();
+			LineReader.SetCompletionMatches (match_strings);
 		}
 
-		public string[] FilenameCompleter (string text)
+		public void FilenameCompleter (string text, int start, int end)
 		{
 			string dir;
 			string file_prefix;
 			DebuggerEngine de = engine as DebuggerEngine;
 
+			LineReader.FilenameCompletionDesired = true;
+
 			if (text.IndexOf (Path.DirectorySeparatorChar) == -1) {
-				dir = de.Interpreter.Options.WorkingDirectory ?? Environment.CurrentDirectory;
+				dir = de.Interpreter.Options.WorkingDirectory;
 				file_prefix = text;
 			}
 			else {
@@ -140,30 +188,49 @@ namespace Mono.Debugger.Frontend
 			try {
 				fs_entries = Directory.GetFileSystemEntries (dir, file_prefix + "*");
 			} catch {
-				return null;
+				LineReader.SetCompletionMatches (null);
+				return;
 			}
 
-			var matched_paths = new List<string> ();
+			ArrayList matched_paths = new ArrayList();
 			foreach (string f in fs_entries) {
-				if (f.StartsWith (Path.Combine (dir, file_prefix))) {
+				if (f.StartsWith (dir + file_prefix)) {
 					matched_paths.Add (f);
 				}
 			}
 
-			return matched_paths.ToArray ();
+			string[] match_strings = null;
+
+			if (matched_paths.Count > 0) {
+				if (matched_paths.Count > 1) {
+					/* always add the prefix at
+					 * the beginning when we have
+					 * > 1 matches, so that
+					 * readline will display the
+					 * matches. */
+					matched_paths.Insert (0, ComputeMCP (matched_paths, text));
+				}
+
+				match_strings = new string [matched_paths.Count + 1];
+				matched_paths.CopyTo (match_strings);
+				match_strings [matched_paths.Count] = null;
+			}
+
+			LineReader.SetCompletionMatches (match_strings);
+
 		}
 
 		/* NoopCompleter: always returns an empty list (no
 		 * matches). */
-	  	public string[] NoopCompleter (string text)
+	  	public void NoopCompleter (string text, int start, int end)
 		{
-			return null;
+			LineReader.SetCompletionMatches (null);
 		}
 
-		public string[] SymbolCompleter (ScriptingContext context, string text)
+		public void SymbolCompleter (ScriptingContext context, string text, int start, int end)
 		{
 			try {
-				var method_list = new List<string> ();
+				ArrayList method_list = new ArrayList ();
 				string[] namespaces = context.GetNamespaces();
 				Module[] modules = context.CurrentProcess.Modules;
 
@@ -200,9 +267,17 @@ namespace Mono.Debugger.Frontend
 					}
 				}
 
-				return method_list.ToArray ();
+				string[] methods = null;
+				if (method_list.Count > 0) {
+					method_list.Insert (0, ComputeMCP (method_list, text));
+					methods = new string [method_list.Count + 1];
+					method_list.CopyTo (methods);
+					methods [method_list.Count] = null;
+				}
+
+				LineReader.SetCompletionMatches (methods);
 			} catch {
-				return null;
+				LineReader.SetCompletionMatches (null);
 			}
 		}
 	}
diff --git a/frontend/Expression.cs b/frontend/Expression.cs
index 888038a..d61f7cd 100644
--- a/frontend/Expression.cs
+++ b/frontend/Expression.cs
@@ -770,13 +770,7 @@ namespace Mono.Debugger.Frontend
 			TargetClassObject instance = null;
 			if (method.HasThis) {
 				TargetVariable this_var = method.GetThis (context.CurrentThread);
-				TargetObject this_obj = this_var.GetObject (frame);
-
-				var pobj = this_obj as TargetPointerObject;
-				if (pobj != null)
-					this_obj = pobj.GetDereferencedObject (context.CurrentThread);
-
-				instance = (TargetClassObject) this_obj;
+				instance = (TargetClassObject) this_var.GetObject (frame);
 			}
 
 			member = StructAccessExpression.FindMember (
diff --git a/frontend/GnuReadLine.cs b/frontend/GnuReadLine.cs
new file mode 100644
index 0000000..0d65788
--- /dev/null
+++ b/frontend/GnuReadLine.cs
@@ -0,0 +1,98 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace Mono.Debugger.Frontend
+{
+	public delegate void CompletionDelegate (string text, int start, int end);
+	public delegate string CompletionGenerator (string text, int state);
+
+	internal class GnuReadLine : IReadLine
+	{
+		[DllImport("libmonodebuggerreadline")]
+		extern static void mono_debugger_readline_static_init ();
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static int mono_debugger_readline_is_a_tty (int fd);
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static string mono_debugger_readline_readline (string prompt);
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static void mono_debugger_readline_add_history (string line);
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static void mono_debugger_readline_enable_completion (Delegate handler);
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static string mono_debugger_readline_current_line_buffer ();
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static int mono_debugger_readline_get_columns ();
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static void mono_debugger_readline_set_completion_matches (string[] matches, int count);
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static int mono_debugger_readline_get_filename_completion_desired ();
+
+		[DllImport("libmonodebuggerreadline")]
+		extern static void mono_debugger_readline_set_filename_completion_desired (int v);
+
+		static CompletionDelegate completion_handler;
+
+		static GnuReadLine ()
+		{
+			mono_debugger_readline_static_init ();
+		}
+
+		public bool IsTerminal (int fd)
+		{
+			return mono_debugger_readline_is_a_tty (fd) != 0;
+		}
+
+		public string ReadLine (string prompt)
+		{
+			return mono_debugger_readline_readline (prompt);
+		}
+
+		public void AddHistory (string line)
+		{
+			mono_debugger_readline_add_history (line);
+		}
+
+		public int Columns {
+			get {
+				return mono_debugger_readline_get_columns ();
+			}
+		}
+
+		public void SetCompletionMatches (string[] matches)
+		{
+			mono_debugger_readline_set_completion_matches (matches, matches == null ? 0 : matches.Length);
+		}
+
+		public void EnableCompletion (CompletionDelegate handler)
+		{
+			completion_handler = handler;
+			mono_debugger_readline_enable_completion (completion_handler);
+		}
+
+		public string CurrentLine
+		{
+			get {
+				return mono_debugger_readline_current_line_buffer ();
+			}
+		}
+
+		public bool FilenameCompletionDesired
+		{
+			get {
+				return mono_debugger_readline_get_filename_completion_desired () == 0 ? false : true;
+			}
+			set {
+				mono_debugger_readline_set_filename_completion_desired (value == true ? 1 : 0);
+			}
+		}
+	}
+}
diff --git a/frontend/Interpreter.cs b/frontend/Interpreter.cs
index 8e7b514..2059359 100644
--- a/frontend/Interpreter.cs
+++ b/frontend/Interpreter.cs
@@ -15,6 +15,8 @@ using Mono.Debugger;
 using Mono.Debugger.Languages;
 using EE=Mono.Debugger.ExpressionEvaluator;
 
+using Mono.GetOptions;
+
 namespace Mono.Debugger.Frontend
 {
 	public class Interpreter : DebuggerMarshalByRefObject, IInterruptionHandler, IDisposable
@@ -320,7 +322,6 @@ namespace Mono.Debugger.Frontend
 			}
 		}
 
-#if DISABLED
 		public Process OpenCoreFile (string core_file)
 		{
 			if ((debugger != null) || (main_process != null))
@@ -346,7 +347,6 @@ namespace Mono.Debugger.Frontend
 				throw;
 			}
 		}
-#endif
 
 		public void SaveSession (Stream stream)
 		{
diff --git a/frontend/LineReader.cs b/frontend/LineReader.cs
new file mode 100644
index 0000000..92eef41
--- /dev/null
+++ b/frontend/LineReader.cs
@@ -0,0 +1,88 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace Mono.Debugger.Frontend
+{
+	internal class LineReader
+	{
+		static IReadLine readline;
+
+		static LineReader () {
+			// Hack for now. Put this check in a better place
+			// where all can access it.
+			if ((int)Environment.OSVersion.Platform < 4)
+				readline = new ManagedReadLine ();
+			else
+				readline = new GnuReadLine ();
+		}
+
+		public static bool IsTerminal (int fd) {
+			return readline.IsTerminal (fd);
+		}
+
+		public static string ReadLine (string prompt) {
+			return readline.ReadLine (prompt);
+		}
+
+		public static void AddHistory (string line) {
+			readline.AddHistory (line);
+		}
+
+		public static int Columns {
+			get {
+				return readline.Columns;
+			}
+		}
+
+		public static void SetCompletionMatches (string[] matches) {
+			readline.SetCompletionMatches (matches);
+		}
+
+		public static void EnableCompletion (CompletionDelegate handler) {
+			readline.EnableCompletion (handler);
+		}
+
+		public static string CurrentLine {
+			get {
+				return readline.CurrentLine;
+			}
+		}
+
+		public static bool FilenameCompletionDesired {
+			get {
+				return readline.FilenameCompletionDesired;
+			}
+			set {
+				readline.FilenameCompletionDesired = value;
+			}
+		}
+	}
+
+	internal interface IReadLine
+	{
+		bool IsTerminal (int fd);
+
+		string ReadLine (string prompt);
+
+		void AddHistory (string line);
+
+		int Columns {
+			get;
+		}
+
+		void SetCompletionMatches (string[] matches);
+
+		void EnableCompletion (CompletionDelegate handler);
+
+		string CurrentLine {
+			get;
+		}
+
+		bool FilenameCompletionDesired {
+			get;
+			set;
+		}
+	}
+}
+
diff --git a/frontend/Main.cs b/frontend/Main.cs
index 4669ff0..e5b5f06 100644
--- a/frontend/Main.cs
+++ b/frontend/Main.cs
@@ -8,8 +8,6 @@ using ST = System.Threading;
 using Mono.Debugger;
 using Mono.Debugger.Backend;
 
-using Mono.Terminal;
-
 namespace Mono.Debugger.Frontend
 {
 	public class CommandLineInterpreter
@@ -45,15 +43,25 @@ namespace Mono.Debugger.Frontend
 		int line = 0;
 
 		bool is_inferior_main;
+		ST.Thread interrupt_thread;
 		ST.Thread main_thread;
 
 		ST.AutoResetEvent interrupt_event;
 		ST.AutoResetEvent nested_break_state_event;
 
-		LineEditor line_editor;
-
 		Stack<CommandLineInterpreter.MainLoop> main_loop_stack;
 
+		[DllImport("monodebuggerserver")]
+		static extern int mono_debugger_server_static_init ();
+
+		[DllImport("monodebuggerserver")]
+		static extern int mono_debugger_server_get_pending_sigint ();
+
+		static CommandLineInterpreter ()
+		{
+			mono_debugger_server_static_init ();
+		}
+
 		internal CommandLineInterpreter (DebuggerOptions options, bool is_interactive)
 		{
 			if (options.HasDebugFlags)
@@ -79,16 +87,6 @@ namespace Mono.Debugger.Frontend
 			engine = interpreter.DebuggerEngine;
 			parser = new LineParser (engine);
 
-			if (!interpreter.IsScript) {
-				line_editor = new LineEditor ("mdb");
-
-				line_editor.AutoCompleteEvent += delegate (string text, int pos) {
-					return engine.Completer.Complete (text, pos);
-				};
-
-				Console.CancelKeyPress += control_c_event;
-			}
-
 			interrupt_event = new ST.AutoResetEvent (false);
 			nested_break_state_event = new ST.AutoResetEvent (false);
 
@@ -97,6 +95,9 @@ namespace Mono.Debugger.Frontend
 
 			main_thread = new ST.Thread (new ST.ThreadStart (main_thread_main));
 			main_thread.IsBackground = true;
+
+			interrupt_thread = new ST.Thread (new ST.ThreadStart (interrupt_thread_main));
+			interrupt_thread.IsBackground = true;
 		}
 
 		public CommandLineInterpreter (Interpreter interpreter)
@@ -110,21 +111,14 @@ namespace Mono.Debugger.Frontend
 			interrupt_event = new ST.AutoResetEvent (false);
 			nested_break_state_event = new ST.AutoResetEvent (false);
 
-			Console.CancelKeyPress += control_c_event;
-
 			main_loop_stack = new Stack<MainLoop> ();
 			main_loop_stack.Push (new MainLoop (interpreter));
 
 			main_thread = new ST.Thread (new ST.ThreadStart (main_thread_main));
 			main_thread.IsBackground = true;
-		}
-
-		void control_c_event (object sender, ConsoleCancelEventArgs a)
-		{
-			a.Cancel = true;
 
-			if (interpreter.Interrupt () > 2)
-				interrupt_event.Set ();
+			interrupt_thread = new ST.Thread (new ST.ThreadStart (interrupt_thread_main));
+			interrupt_thread.IsBackground = true;
 		}
 
 		public void DoRunMainLoop ()
@@ -236,6 +230,8 @@ namespace Mono.Debugger.Frontend
 		{
 			is_inferior_main = false;
 
+			interrupt_thread.Start ();
+
 			try {
 				if (interpreter.Options.StartTarget)
 					interpreter.Start ();
@@ -257,6 +253,8 @@ namespace Mono.Debugger.Frontend
 		{
 			is_inferior_main = true;
 
+			interrupt_thread.Start ();
+
 			TextReader old_stdin = Console.In;
 			TextWriter old_stdout = Console.Out;
 			TextWriter old_stderr = Console.Error;
@@ -299,6 +297,8 @@ namespace Mono.Debugger.Frontend
 				interpreter.IsScript = old_is_script;
 				interpreter.IsInteractive = old_is_interactive;
 			}
+
+			interrupt_thread.Abort ();
 		}
 
 		public string ReadInput (bool is_complete)
@@ -310,9 +310,11 @@ namespace Mono.Debugger.Frontend
 				Console.Write (the_prompt);
 				return Console.ReadLine ();
 			} else {
-				string result = line_editor.Edit (the_prompt, "");
+				string result = LineReader.ReadLine (the_prompt);
 				if (result == null)
 					return null;
+				if (result != "")
+					LineReader.AddHistory (result);
 				return result;
 			}
 		}
@@ -333,13 +335,27 @@ namespace Mono.Debugger.Frontend
 			}
 		}
 
+		void interrupt_thread_main ()
+		{
+			do {
+				Semaphore.Wait ();
+				if (mono_debugger_server_get_pending_sigint () == 0)
+					continue;
+
+				if (interpreter.Interrupt () > 2)
+					interrupt_event.Set ();
+			} while (true);
+		}
+
 		public static void Main (string[] args)
 		{
+			bool is_terminal = LineReader.IsTerminal (0);
+
 			DebuggerOptions options = DebuggerOptions.ParseCommandLine (args);
 
 			Console.WriteLine ("Mono Debugger");
 
-			CommandLineInterpreter interpreter = new CommandLineInterpreter (options, true);
+			CommandLineInterpreter interpreter = new CommandLineInterpreter (options, is_terminal);
 
 			interpreter.RunMainLoop ();
 
diff --git a/frontend/Makefile.am b/frontend/Makefile.am
index c3267aa..28f0802 100644
--- a/frontend/Makefile.am
+++ b/frontend/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = jay
+SUBDIRS = jay libedit
 
 noinst_DATA = CSharpExpressionParser.cs
 
diff --git a/frontend/Makefile.in b/frontend/Makefile.in
index c28c04c..db45e75 100644
--- a/frontend/Makefile.in
+++ b/frontend/Makefile.in
@@ -131,6 +131,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
@@ -209,7 +210,7 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = jay
+SUBDIRS = jay libedit
 noinst_DATA = CSharpExpressionParser.cs
 JAY = jay/jay
 CSLEX = $(top_builddir)/cslex/cslex.exe
diff --git a/frontend/ManagedReadLine.cs b/frontend/ManagedReadLine.cs
new file mode 100644
index 0000000..374efad
--- /dev/null
+++ b/frontend/ManagedReadLine.cs
@@ -0,0 +1,57 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Collections.Generic;
+
+namespace Mono.Debugger.Frontend
+{
+	internal class ManagedReadLine : IReadLine
+	{
+		Stack<string> history = new Stack<string> ();
+		string current_line = string.Empty;
+
+		public bool IsTerminal (int fd) {
+			return false;
+		}
+
+		public string ReadLine (string prompt) {
+			Console.Write (prompt);
+			current_line = Console.ReadLine ();
+			return current_line;
+		}
+
+		public void AddHistory (string line) {
+			history.Push (line);
+		}
+
+		public int Columns {
+			get {
+				throw new NotImplementedException ();
+			}
+		}
+
+		public void SetCompletionMatches (string[] matches) {
+			throw new NotImplementedException ();
+		}
+
+		public void EnableCompletion (CompletionDelegate handler) {
+			throw new NotImplementedException ();
+		}
+
+		public string CurrentLine {
+			get {
+				return current_line;
+			}
+		}
+
+		public bool FilenameCompletionDesired {
+			get {
+				throw new NotImplementedException ();
+			}
+			set {
+				throw new NotImplementedException ();
+			}
+		}
+	}
+}
+
diff --git a/frontend/ScriptingContext.cs b/frontend/ScriptingContext.cs
index 814f709..7ffc937 100644
--- a/frontend/ScriptingContext.cs
+++ b/frontend/ScriptingContext.cs
@@ -12,6 +12,8 @@ using Mono.Debugger;
 using Mono.Debugger.Languages;
 using EE = Mono.Debugger.ExpressionEvaluator;
 
+using Mono.GetOptions;
+
 namespace Mono.Debugger.Frontend
 {
 	public class ScriptingException : Exception
diff --git a/frontend/getline.cs b/frontend/getline.cs
deleted file mode 100644
index c9cd997..0000000
--- a/frontend/getline.cs
+++ /dev/null
@@ -1,1086 +0,0 @@
-//
-// getline.cs: A command line editor
-//
-// Authors:
-//   Miguel de Icaza (miguel at novell.com)
-//
-// Copyright 2008 Novell, Inc.
-//
-// Dual-licensed under the terms of the MIT X11 license or the
-// Apache License 2.0
-//
-// USE -define:DEMO to build this as a standalone file and test it
-//
-// TODO:
-//    Enter an error (a = 1);  Notice how the prompt is in the wrong line
-//		This is caused by Stderr not being tracked by System.Console.
-//    Completion support
-//    Why is Thread.Interrupt not working?   Currently I resort to Abort which is too much.
-//
-// Limitations in System.Console:
-//    Console needs SIGWINCH support of some sort
-//    Console needs a way of updating its position after things have been written
-//    behind its back (P/Invoke puts for example).
-//    System.Console needs to get the DELETE character, and report accordingly.
-//
-#if NET_2_0 || NET_1_1
-#define IN_MCS_BUILD
-#endif
-
-// Only compile this code in the 2.0 profile, but not in the Moonlight one
-#if (IN_MCS_BUILD && NET_2_0 && !SMCS_SOURCE) || !IN_MCS_BUILD
-using System;
-using System.Text;
-using System.IO;
-using System.Threading;
-using System.Reflection;
-
-namespace Mono.Terminal {
-
-	public class LineEditor {
-
-		public class Completion {
-			public string [] Result;
-			public string Prefix;
-
-			public Completion (string prefix, string [] result)
-			{
-				Prefix = prefix;
-				Result = result;
-			}
-		}
-		
-		public delegate Completion AutoCompleteHandler (string text, int pos);
-		
-		//static StreamWriter log;
-		
-		// The text being edited.
-		StringBuilder text;
-
-		// The text as it is rendered (replaces (char)1 with ^A on display for example).
-		StringBuilder rendered_text;
-
-		// The prompt specified, and the prompt shown to the user.
-		string prompt;
-		string shown_prompt;
-		
-		// The current cursor position, indexes into "text", for an index
-		// into rendered_text, use TextToRenderPos
-		int cursor;
-
-		// The row where we started displaying data.
-		int home_row;
-
-		// The maximum length that has been displayed on the screen
-		int max_rendered;
-
-		// If we are done editing, this breaks the interactive loop
-		bool done = false;
-
-		// The thread where the Editing started taking place
-		Thread edit_thread;
-
-		// Our object that tracks history
-		History history;
-
-		// The contents of the kill buffer (cut/paste in Emacs parlance)
-		string kill_buffer = "";
-
-		// The string being searched for
-		string search;
-		string last_search;
-
-		// whether we are searching (-1= reverse; 0 = no; 1 = forward)
-		int searching;
-
-		// The position where we found the match.
-		int match_at;
-		
-		// Used to implement the Kill semantics (multiple Alt-Ds accumulate)
-		KeyHandler last_handler;
-		
-		delegate void KeyHandler ();
-		
-		struct Handler {
-			public ConsoleKeyInfo CKI;
-			public KeyHandler KeyHandler;
-
-			public Handler (ConsoleKey key, KeyHandler h)
-			{
-				CKI = new ConsoleKeyInfo ((char) 0, key, false, false, false);
-				KeyHandler = h;
-			}
-
-			public Handler (char c, KeyHandler h)
-			{
-				KeyHandler = h;
-				// Use the "Zoom" as a flag that we only have a character.
-				CKI = new ConsoleKeyInfo (c, ConsoleKey.Zoom, false, false, false);
-			}
-
-			public Handler (ConsoleKeyInfo cki, KeyHandler h)
-			{
-				CKI = cki;
-				KeyHandler = h;
-			}
-			
-			public static Handler Control (char c, KeyHandler h)
-			{
-				return new Handler ((char) (c - 'A' + 1), h);
-			}
-
-			public static Handler Alt (char c, ConsoleKey k, KeyHandler h)
-			{
-				ConsoleKeyInfo cki = new ConsoleKeyInfo ((char) c, k, false, true, false);
-				return new Handler (cki, h);
-			}
-		}
-
-		/// <summary>
-		///   Invoked when the user requests auto-completion using the tab character
-		/// </summary>
-		/// <remarks>
-		///    The result is null for no values found, an array with a single
-		///    string, in that case the string should be the text to be inserted
-		///    for example if the word at pos is "T", the result for a completion
-		///    of "ToString" should be "oString", not "ToString".
-		///
-		///    When there are multiple results, the result should be the full
-		///    text
-		/// </remarks>
-		public AutoCompleteHandler AutoCompleteEvent;
-		
-		static Handler [] handlers;
-
-		public LineEditor (string name) : this (name, 10) { }
-		
-		public LineEditor (string name, int histsize)
-		{
-			handlers = new Handler [] {
-				new Handler (ConsoleKey.Home,       CmdHome),
-				new Handler (ConsoleKey.End,        CmdEnd),
-				new Handler (ConsoleKey.LeftArrow,  CmdLeft),
-				new Handler (ConsoleKey.RightArrow, CmdRight),
-				new Handler (ConsoleKey.UpArrow,    CmdHistoryPrev),
-				new Handler (ConsoleKey.DownArrow,  CmdHistoryNext),
-				new Handler (ConsoleKey.Enter,      CmdDone),
-				new Handler (ConsoleKey.Backspace,  CmdBackspace),
-				new Handler (ConsoleKey.Delete,     CmdDeleteChar),
-				new Handler (ConsoleKey.Tab,        CmdTabOrComplete),
-				
-				// Emacs keys
-				Handler.Control ('A', CmdHome),
-				Handler.Control ('E', CmdEnd),
-				Handler.Control ('B', CmdLeft),
-				Handler.Control ('F', CmdRight),
-				Handler.Control ('P', CmdHistoryPrev),
-				Handler.Control ('N', CmdHistoryNext),
-				Handler.Control ('K', CmdKillToEOF),
-				Handler.Control ('Y', CmdYank),
-				Handler.Control ('D', CmdDeleteChar),
-				Handler.Control ('L', CmdRefresh),
-				Handler.Control ('R', CmdReverseSearch),
-				Handler.Control ('G', delegate {} ),
-				Handler.Alt ('B', ConsoleKey.B, CmdBackwardWord),
-				Handler.Alt ('F', ConsoleKey.F, CmdForwardWord),
-				
-				Handler.Alt ('D', ConsoleKey.D, CmdDeleteWord),
-				Handler.Alt ((char) 8, ConsoleKey.Backspace, CmdDeleteBackword),
-				
-				// DEBUG
-				//Handler.Control ('T', CmdDebug),
-
-				// quote
-				Handler.Control ('Q', delegate { HandleChar (Console.ReadKey (true).KeyChar); })
-			};
-
-			rendered_text = new StringBuilder ();
-			text = new StringBuilder ();
-
-			history = new History (name, histsize);
-			
-			//if (File.Exists ("log"))File.Delete ("log");
-			//log = File.CreateText ("log"); 
-		}
-
-		void CmdDebug ()
-		{
-			history.Dump ();
-			Console.WriteLine ();
-			Render ();
-		}
-
-		void Render ()
-		{
-			Console.Write (shown_prompt);
-			Console.Write (rendered_text);
-
-			int max = System.Math.Max (rendered_text.Length + shown_prompt.Length, max_rendered);
-			
-			for (int i = rendered_text.Length + shown_prompt.Length; i < max_rendered; i++)
-				Console.Write (' ');
-			max_rendered = shown_prompt.Length + rendered_text.Length;
-
-			// Write one more to ensure that we always wrap around properly if we are at the
-			// end of a line.
-			Console.Write (' ');
-
-			UpdateHomeRow (max);
-		}
-
-		void UpdateHomeRow (int screenpos)
-		{
-			int lines = 1 + (screenpos / Console.WindowWidth);
-
-			home_row = Console.CursorTop - (lines - 1);
-			if (home_row < 0)
-				home_row = 0;
-		}
-		
-
-		void RenderFrom (int pos)
-		{
-			int rpos = TextToRenderPos (pos);
-			int i;
-			
-			for (i = rpos; i < rendered_text.Length; i++)
-				Console.Write (rendered_text [i]);
-
-			if ((shown_prompt.Length + rendered_text.Length) > max_rendered)
-				max_rendered = shown_prompt.Length + rendered_text.Length;
-			else {
-				int max_extra = max_rendered - shown_prompt.Length;
-				for (; i < max_extra; i++)
-					Console.Write (' ');
-			}
-		}
-
-		void ComputeRendered ()
-		{
-			rendered_text.Length = 0;
-
-			for (int i = 0; i < text.Length; i++){
-				int c = (int) text [i];
-				if (c < 26){
-					if (c == '\t')
-						rendered_text.Append ("    ");
-					else {
-						rendered_text.Append ('^');
-						rendered_text.Append ((char) (c + (int) 'A' - 1));
-					}
-				} else
-					rendered_text.Append ((char)c);
-			}
-		}
-
-		int TextToRenderPos (int pos)
-		{
-			int p = 0;
-
-			for (int i = 0; i < pos; i++){
-				int c;
-
-				c = (int) text [i];
-				
-				if (c < 26){
-					if (c == 9)
-						p += 4;
-					else
-						p += 2;
-				} else
-					p++;
-			}
-
-			return p;
-		}
-
-		int TextToScreenPos (int pos)
-		{
-			return shown_prompt.Length + TextToRenderPos (pos);
-		}
-		
-		string Prompt {
-			get { return prompt; }
-			set { prompt = value; }
-		}
-
-		int LineCount {
-			get {
-				return (shown_prompt.Length + rendered_text.Length)/Console.WindowWidth;
-			}
-		}
-		
-		void ForceCursor (int newpos)
-		{
-			cursor = newpos;
-
-			int actual_pos = shown_prompt.Length + TextToRenderPos (cursor);
-			int row = home_row + (actual_pos/Console.WindowWidth);
-			int col = actual_pos % Console.WindowWidth;
-
-			if (row >= Console.BufferHeight)
-				row = Console.BufferHeight-1;
-			Console.SetCursorPosition (col, row);
-			
-			//log.WriteLine ("Going to cursor={0} row={1} col={2} actual={3} prompt={4} ttr={5} old={6}", newpos, row, col, actual_pos, prompt.Length, TextToRenderPos (cursor), cursor);
-			//log.Flush ();
-		}
-
-		void UpdateCursor (int newpos)
-		{
-			if (cursor == newpos)
-				return;
-
-			ForceCursor (newpos);
-		}
-
-		void InsertChar (char c)
-		{
-			int prev_lines = LineCount;
-			text = text.Insert (cursor, c);
-			ComputeRendered ();
-			if (prev_lines != LineCount){
-
-				Console.SetCursorPosition (0, home_row);
-				Render ();
-				ForceCursor (++cursor);
-			} else {
-				RenderFrom (cursor);
-				ForceCursor (++cursor);
-				UpdateHomeRow (TextToScreenPos (cursor));
-			}
-		}
-
-		//
-		// Commands
-		//
-		void CmdDone ()
-		{
-			done = true;
-		}
-
-		void CmdTabOrComplete ()
-		{
-			bool complete = false;
-
-			if (AutoCompleteEvent != null){
-				if (TabAtStartCompletes)
-					complete = true;
-				else {
-					for (int i = 0; i < cursor; i++){
-						if (!Char.IsWhiteSpace (text [i])){
-							complete = true;
-							break;
-						}
-					}
-				}
-
-				if (complete){
-					Completion completion = AutoCompleteEvent (text.ToString (), cursor);
-					if (completion == null)
-						return;
-					string [] completions = completion.Result;
-					if (completions == null)
-						return;
-					
-					int ncompletions = completions.Length;
-					if (ncompletions == 0)
-						return;
-					
-					if (completions.Length == 1){
-						InsertTextAtCursor (completions [0]);
-					} else {
-						int last = -1;
-						
-						for (int p = 0; p < completions [0].Length; p++){
-							char c = completions [0][p];
-
-
-							for (int i = 1; i < ncompletions; i++){
-								if (completions [i].Length < p)
-									goto mismatch;
-							
-								if (completions [i][p] != c){
-									goto mismatch;
-								}
-							}
-							last = p;
-						}
-					mismatch:
-						if (last != -1){
-							InsertTextAtCursor (completions [0].Substring (0, last+1));
-						}
-						Console.WriteLine ();
-						foreach (string s in completions){
-							Console.Write (completion.Prefix);
-							Console.Write (s);
-							Console.Write (' ');
-						}
-						Console.WriteLine ();
-						Render ();
-						ForceCursor (cursor);
-					}
-				} else
-					HandleChar ('\t');
-			} else
-				HandleChar ('t');
-		}
-		
-		void CmdHome ()
-		{
-			UpdateCursor (0);
-		}
-
-		void CmdEnd ()
-		{
-			UpdateCursor (text.Length);
-		}
-		
-		void CmdLeft ()
-		{
-			if (cursor == 0)
-				return;
-
-			UpdateCursor (cursor-1);
-		}
-
-		void CmdBackwardWord ()
-		{
-			int p = WordBackward (cursor);
-			if (p == -1)
-				return;
-			UpdateCursor (p);
-		}
-
-		void CmdForwardWord ()
-		{
-			int p = WordForward (cursor);
-			if (p == -1)
-				return;
-			UpdateCursor (p);
-		}
-
-		void CmdRight ()
-		{
-			if (cursor == text.Length)
-				return;
-
-			UpdateCursor (cursor+1);
-		}
-
-		void RenderAfter (int p)
-		{
-			ForceCursor (p);
-			RenderFrom (p);
-			ForceCursor (cursor);
-		}
-		
-		void CmdBackspace ()
-		{
-			if (cursor == 0)
-				return;
-
-			text.Remove (--cursor, 1);
-			ComputeRendered ();
-			RenderAfter (cursor);
-		}
-
-		void CmdDeleteChar ()
-		{
-			// If there is no input, this behaves like EOF
-			if (text.Length == 0){
-				done = true;
-				text = null;
-				Console.WriteLine ();
-				return;
-			}
-			
-			if (cursor == text.Length)
-				return;
-			text.Remove (cursor, 1);
-			ComputeRendered ();
-			RenderAfter (cursor);
-		}
-
-		int WordForward (int p)
-		{
-			if (p >= text.Length)
-				return -1;
-
-			int i = p;
-			if (Char.IsPunctuation (text [p]) || Char.IsWhiteSpace (text[p])){
-				for (; i < text.Length; i++){
-					if (Char.IsLetterOrDigit (text [i]))
-					    break;
-				}
-				for (; i < text.Length; i++){
-					if (!Char.IsLetterOrDigit (text [i]))
-					    break;
-				}
-			} else {
-				for (; i < text.Length; i++){
-					if (!Char.IsLetterOrDigit (text [i]))
-					    break;
-				}
-			}
-			if (i != p)
-				return i;
-			return -1;
-		}
-
-		int WordBackward (int p)
-		{
-			if (p == 0)
-				return -1;
-
-			int i = p-1;
-			if (i == 0)
-				return 0;
-			
-			if (Char.IsPunctuation (text [i]) || Char.IsSymbol (text [i]) || Char.IsWhiteSpace (text[i])){
-				for (; i >= 0; i--){
-					if (Char.IsLetterOrDigit (text [i]))
-						break;
-				}
-				for (; i >= 0; i--){
-					if (!Char.IsLetterOrDigit (text[i]))
-						break;
-				}
-			} else {
-				for (; i >= 0; i--){
-					if (!Char.IsLetterOrDigit (text [i]))
-						break;
-				}
-			}
-			i++;
-			
-			if (i != p)
-				return i;
-
-			return -1;
-		}
-		
-		void CmdDeleteWord ()
-		{
-			int pos = WordForward (cursor);
-
-			if (pos == -1)
-				return;
-
-			string k = text.ToString (cursor, pos-cursor);
-			
-			if (last_handler == CmdDeleteWord)
-				kill_buffer = kill_buffer + k;
-			else
-				kill_buffer = k;
-			
-			text.Remove (cursor, pos-cursor);
-			ComputeRendered ();
-			RenderAfter (cursor);
-		}
-		
-		void CmdDeleteBackword ()
-		{
-			int pos = WordBackward (cursor);
-			if (pos == -1)
-				return;
-
-			string k = text.ToString (pos, cursor-pos);
-			
-			if (last_handler == CmdDeleteBackword)
-				kill_buffer = k + kill_buffer;
-			else
-				kill_buffer = k;
-			
-			text.Remove (pos, cursor-pos);
-			ComputeRendered ();
-			RenderAfter (pos);
-		}
-		
-		//
-		// Adds the current line to the history if needed
-		//
-		void HistoryUpdateLine ()
-		{
-			history.Update (text.ToString ());
-		}
-		
-		void CmdHistoryPrev ()
-		{
-			if (!history.PreviousAvailable ())
-				return;
-
-			HistoryUpdateLine ();
-			
-			SetText (history.Previous ());
-		}
-
-		void CmdHistoryNext ()
-		{
-			if (!history.NextAvailable())
-				return;
-
-			history.Update (text.ToString ());
-			SetText (history.Next ());
-			
-		}
-
-		void CmdKillToEOF ()
-		{
-			kill_buffer = text.ToString (cursor, text.Length-cursor);
-			text.Length = cursor;
-			ComputeRendered ();
-			RenderAfter (cursor);
-		}
-
-		void CmdYank ()
-		{
-			InsertTextAtCursor (kill_buffer);
-		}
-
-		void InsertTextAtCursor (string str)
-		{
-			int prev_lines = LineCount;
-			text.Insert (cursor, str);
-			ComputeRendered ();
-			if (prev_lines != LineCount){
-				Console.SetCursorPosition (0, home_row);
-				Render ();
-				cursor += str.Length;
-				ForceCursor (cursor);
-			} else {
-				RenderFrom (cursor);
-				cursor += str.Length;
-				ForceCursor (cursor);
-				UpdateHomeRow (TextToScreenPos (cursor));
-			}
-		}
-		
-		void SetSearchPrompt (string s)
-		{
-			SetPrompt ("(reverse-i-search)`" + s + "': ");
-		}
-
-		void ReverseSearch ()
-		{
-			int p;
-
-			if (cursor == text.Length){
-				// The cursor is at the end of the string
-				
-				p = text.ToString ().LastIndexOf (search);
-				if (p != -1){
-					match_at = p;
-					cursor = p;
-					ForceCursor (cursor);
-					return;
-				}
-			} else {
-				// The cursor is somewhere in the middle of the string
-				int start = (cursor == match_at) ? cursor - 1 : cursor;
-				if (start != -1){
-					p = text.ToString ().LastIndexOf (search, start);
-					if (p != -1){
-						match_at = p;
-						cursor = p;
-						ForceCursor (cursor);
-						return;
-					}
-				}
-			}
-
-			// Need to search backwards in history
-			HistoryUpdateLine ();
-			string s = history.SearchBackward (search);
-			if (s != null){
-				match_at = -1;
-				SetText (s);
-				ReverseSearch ();
-			}
-		}
-		
-		void CmdReverseSearch ()
-		{
-			if (searching == 0){
-				match_at = -1;
-				last_search = search;
-				searching = -1;
-				search = "";
-				SetSearchPrompt ("");
-			} else {
-				if (search == ""){
-					if (last_search != "" && last_search != null){
-						search = last_search;
-						SetSearchPrompt (search);
-
-						ReverseSearch ();
-					}
-					return;
-				}
-				ReverseSearch ();
-			} 
-		}
-
-		void SearchAppend (char c)
-		{
-			search = search + c;
-			SetSearchPrompt (search);
-
-			//
-			// If the new typed data still matches the current text, stay here
-			//
-			if (cursor < text.Length){
-				string r = text.ToString (cursor, text.Length - cursor);
-				if (r.StartsWith (search))
-					return;
-			}
-
-			ReverseSearch ();
-		}
-		
-		void CmdRefresh ()
-		{
-			Console.Clear ();
-			max_rendered = 0;
-			Render ();
-			ForceCursor (cursor);
-		}
-
-		void InterruptEdit (object sender, ConsoleCancelEventArgs a)
-		{
-			// Do not abort our program:
-			a.Cancel = true;
-
-			// Interrupt the editor
-			edit_thread.Abort();
-		}
-
-		void HandleChar (char c)
-		{
-			if (searching != 0)
-				SearchAppend (c);
-			else
-				InsertChar (c);
-		}
-
-		void EditLoop ()
-		{
-			ConsoleKeyInfo cki;
-
-			while (!done){
-				ConsoleModifiers mod;
-				
-				cki = Console.ReadKey (true);
-				if (cki.Key == ConsoleKey.Escape){
-					cki = Console.ReadKey (true);
-
-					mod = ConsoleModifiers.Alt;
-				} else
-					mod = cki.Modifiers;
-				
-				bool handled = false;
-
-				foreach (Handler handler in handlers){
-					ConsoleKeyInfo t = handler.CKI;
-
-					if (t.Key == cki.Key && t.Modifiers == mod){
-						handled = true;
-						handler.KeyHandler ();
-						last_handler = handler.KeyHandler;
-						break;
-					} else if (t.KeyChar == cki.KeyChar && t.Key == ConsoleKey.Zoom){
-						handled = true;
-						handler.KeyHandler ();
-						last_handler = handler.KeyHandler;
-						break;
-					}
-				}
-				if (handled){
-					if (searching != 0){
-						if (last_handler != CmdReverseSearch){
-							searching = 0;
-							SetPrompt (prompt);
-						}
-					}
-					continue;
-				}
-
-				if (cki.KeyChar != (char) 0)
-					HandleChar (cki.KeyChar);
-			} 
-		}
-
-		void InitText (string initial)
-		{
-			text = new StringBuilder (initial);
-			ComputeRendered ();
-			cursor = text.Length;
-			Render ();
-			ForceCursor (cursor);
-		}
-
-		void SetText (string newtext)
-		{
-			Console.SetCursorPosition (0, home_row);
-			InitText (newtext);
-		}
-
-		void SetPrompt (string newprompt)
-		{
-			shown_prompt = newprompt;
-			Console.SetCursorPosition (0, home_row);
-			Render ();
-			ForceCursor (cursor);
-		}
-		
-		public string Edit (string prompt, string initial)
-		{
-			edit_thread = Thread.CurrentThread;
-			searching = 0;
-			Console.CancelKeyPress += InterruptEdit;
-
-			home_row = Console.CursorTop;
-			
-			done = false;
-			history.CursorToEnd ();
-			max_rendered = 0;
-			
-			Prompt = prompt;
-			shown_prompt = prompt;
-			InitText (initial);
-			history.Append (initial);
-
-			do {
-				try {
-					EditLoop ();
-				} catch (ThreadAbortException){
-					searching = 0;
-					Thread.ResetAbort ();
-					Console.WriteLine ();
-					SetPrompt (prompt);
-					SetText ("");
-				}
-			} while (!done);
-			Console.WriteLine ();
-			
-			Console.CancelKeyPress -= InterruptEdit;
-
-			if (text == null){
-				history.Close ();
-				return null;
-			}
-
-			string result = text.ToString ();
-			if (result != "")
-				history.Accept (result);
-			else
-				history.RemoveLast ();
-
-			return result;
-		}
-
-		public bool TabAtStartCompletes { get; set; }
-			
-		//
-		// Emulates the bash-like behavior, where edits done to the
-		// history are recorded
-		//
-		class History {
-			string [] history;
-			int head, tail;
-			int cursor, count;
-			string histfile;
-			
-			public History (string app, int size)
-			{
-				if (size < 1)
-					throw new ArgumentException ("size");
-
-				if (app != null){
-					string dir = Environment.GetFolderPath (Environment.SpecialFolder.ApplicationData);
-					//Console.WriteLine (dir);
-					if (!Directory.Exists (dir)){
-						try {
-							Directory.CreateDirectory (dir);
-						} catch {
-							app = null;
-						}
-					}
-					if (app != null)
-						histfile = Path.Combine (dir, app) + ".history";
-				}
-				
-				history = new string [size];
-				head = tail = cursor = 0;
-
-				if (File.Exists (histfile)){
-					using (StreamReader sr = File.OpenText (histfile)){
-						string line;
-						
-						while ((line = sr.ReadLine ()) != null){
-							if (line != "")
-								Append (line);
-						}
-					}
-				}
-			}
-
-			public void Close ()
-			{
-				if (histfile == null)
-					return;
-
-				try {
-					using (StreamWriter sw = File.CreateText (histfile)){
-						int start = (count == history.Length) ? head : tail;
-						for (int i = start; i < start+count; i++){
-							int p = i % history.Length;
-							sw.WriteLine (history [p]);
-						}
-					}
-				} catch {
-					// ignore
-				}
-			}
-			
-			//
-			// Appends a value to the history
-			//
-			public void Append (string s)
-			{
-				//Console.WriteLine ("APPENDING {0} {1}", s, Environment.StackTrace);
-				history [head] = s;
-				head = (head+1) % history.Length;
-				if (head == tail)
-					tail = (tail+1 % history.Length);
-				if (count != history.Length)
-					count++;
-			}
-
-			//
-			// Updates the current cursor location with the string,
-			// to support editing of history items.   For the current
-			// line to participate, an Append must be done before.
-			//
-			public void Update (string s)
-			{
-				history [cursor] = s;
-			}
-
-			public void RemoveLast ()
-			{
-				head = head-1;
-				if (head < 0)
-					head = history.Length-1;
-			}
-			
-			public void Accept (string s)
-			{
-				int t = head-1;
-				if (t < 0)
-					t = history.Length-1;
-				
-				history [t] = s;
-			}
-			
-			public bool PreviousAvailable ()
-			{
-				//Console.WriteLine ("h={0} t={1} cursor={2}", head, tail, cursor);
-				if (count == 0 || cursor == tail)
-					return false;
-
-				return true;
-			}
-
-			public bool NextAvailable ()
-			{
-				int next = (cursor + 1) % history.Length;
-				if (count == 0 || next >= head)
-					return false;
-
-				return true;
-			}
-			
-			
-			//
-			// Returns: a string with the previous line contents, or
-			// nul if there is no data in the history to move to.
-			//
-			public string Previous ()
-			{
-				if (!PreviousAvailable ())
-					return null;
-
-				cursor--;
-				if (cursor < 0)
-					cursor = history.Length - 1;
-
-				return history [cursor];
-			}
-
-			public string Next ()
-			{
-				if (!NextAvailable ())
-					return null;
-
-				cursor = (cursor + 1) % history.Length;
-				return history [cursor];
-			}
-
-			public void CursorToEnd ()
-			{
-				if (head == tail)
-					return;
-
-				cursor = head;
-			}
-
-			public void Dump ()
-			{
-				Console.WriteLine ("Head={0} Tail={1} Cursor={2}", head, tail, cursor);
-				for (int i = 0; i < history.Length;i++){
-					Console.WriteLine (" {0} {1}: {2}", i == cursor ? "==>" : "   ", i, history[i]);
-				}
-				//log.Flush ();
-			}
-
-			public string SearchBackward (string term)
-			{
-				for (int i = 1; i < count; i++){
-					int slot = cursor-i;
-					if (slot < 0)
-						slot = history.Length-1;
-					if (history [slot] != null && history [slot].IndexOf (term) != -1){
-						cursor = slot;
-						return history [slot];
-					}
-
-					// Will the next hit tail?
-					slot--;
-					if (slot < 0)
-						slot = history.Length-1;
-					if (slot == tail)
-						break;
-				}
-
-				return null;
-			}
-			
-		}
-	}
-
-#if DEMO
-	class Demo {
-		static void Main ()
-		{
-			LineEditor le = new LineEditor (null);
-			string s;
-			
-			while ((s = le.Edit ("shell> ", "")) != null){
-				Console.WriteLine ("----> [{0}]", s);
-			}
-		}
-	}
-#endif
-}
-#endif
diff --git a/frontend/jay/Makefile.in b/frontend/jay/Makefile.in
index 0478f8d..27b1201 100644
--- a/frontend/jay/Makefile.in
+++ b/frontend/jay/Makefile.in
@@ -141,6 +141,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/frontend/jay/closure.c b/frontend/jay/closure.c
index 57e17fd..5f63c5f 100644
--- a/frontend/jay/closure.c
+++ b/frontend/jay/closure.c
@@ -48,7 +48,6 @@ static unsigned *first_derives;
 static unsigned *EFF;
 
 
-void
 set_EFF()
 {
     register unsigned *row;
@@ -85,7 +84,6 @@ set_EFF()
 }
 
 
-void
 set_first_derives()
 {
     register unsigned *rrow;
@@ -141,7 +139,6 @@ set_first_derives()
 }
 
 
-void
 closure(nucleus, n)
 short *nucleus;
 int n;
@@ -212,7 +209,6 @@ int n;
 
 
 
-void
 finalize_closure()
 {
   FREE(itemset);
@@ -223,7 +219,6 @@ finalize_closure()
 
 #ifdef	DEBUG
 
-void
 print_closure(n)
 int n;
 {
@@ -235,7 +230,6 @@ int n;
 }
 
 
-void
 print_EFF()
 {
     register int i, j;
@@ -267,7 +261,6 @@ print_EFF()
 }
 
 
-void
 print_first_derives()
 {
     register int i;
diff --git a/frontend/jay/error.c b/frontend/jay/error.c
index 58e4726..283806c 100644
--- a/frontend/jay/error.c
+++ b/frontend/jay/error.c
@@ -43,7 +43,6 @@ static char sccsid[] = "@(#)error.c	5.3 (Berkeley) 6/1/90";
 #include "defs.h"
 
 
-void
 fatal(msg)
 char *msg;
 {
@@ -52,7 +51,6 @@ char *msg;
 }
 
 
-void
 no_space()
 {
     fprintf(stderr, "%s: f - out of space\n", myname);
@@ -60,7 +58,6 @@ no_space()
 }
 
 
-void
 open_error(filename)
 char *filename;
 {
@@ -69,7 +66,6 @@ char *filename;
 }
 
 
-void
 unexpected_EOF()
 {
     fprintf(stderr, "%s: e - line %d of \"%s\", unexpected end-of-file\n",
@@ -105,7 +101,6 @@ char *st_cptr;
 }
 
 
-void
 syntax_error(st_lineno, st_line, st_cptr)
 int st_lineno;
 char *st_line;
@@ -118,7 +113,6 @@ char *st_cptr;
 }
 
 
-void
 unterminated_comment(c_lineno, c_line, c_cptr)
 int c_lineno;
 char *c_line;
@@ -131,7 +125,6 @@ char *c_cptr;
 }
 
 
-void
 unterminated_string(s_lineno, s_line, s_cptr)
 int s_lineno;
 char *s_line;
@@ -144,7 +137,6 @@ char *s_cptr;
 }
 
 
-void
 unterminated_text(t_lineno, t_line, t_cptr)
 int t_lineno;
 char *t_line;
@@ -157,7 +149,6 @@ char *t_cptr;
 }
 
 
-void
 illegal_tag(t_lineno, t_line, t_cptr)
 int t_lineno;
 char *t_line;
@@ -170,7 +161,6 @@ char *t_cptr;
 }
 
 
-void
 illegal_character(c_cptr)
 char *c_cptr;
 {
@@ -181,7 +171,6 @@ char *c_cptr;
 }
 
 
-void
 used_reserved(s)
 char *s;
 {
@@ -191,7 +180,6 @@ char *s;
 }
 
 
-void
 tokenized_start(s)
 char *s;
 {
@@ -201,7 +189,6 @@ declared to be a token\n", myname, lineno, input_file_name, s);
 }
 
 
-void
 retyped_warning(s)
 char *s;
 {
@@ -210,7 +197,6 @@ redeclared\n", myname, lineno, input_file_name, s);
 }
 
 
-void
 reprec_warning(s)
 char *s;
 {
@@ -219,7 +205,6 @@ redeclared\n", myname, lineno, input_file_name, s);
 }
 
 
-void
 revalued_warning(s)
 char *s;
 {
@@ -228,7 +213,6 @@ redeclared\n", myname, lineno, input_file_name, s);
 }
 
 
-void
 terminal_start(s)
 char *s;
 {
@@ -238,7 +222,6 @@ token\n", myname, lineno, input_file_name, s);
 }
 
 
-void
 restarted_warning()
 {
     fprintf(stderr, "%s: w - line %d of \"%s\", the start symbol has been \
@@ -246,7 +229,6 @@ redeclared\n", myname, lineno, input_file_name);
 }
 
 
-void
 no_grammar()
 {
     fprintf(stderr, "%s: e - line %d of \"%s\", no grammar has been \
@@ -255,7 +237,6 @@ specified\n", myname, lineno, input_file_name);
 }
 
 
-void
 terminal_lhs(s_lineno)
 int s_lineno;
 {
@@ -265,7 +246,6 @@ of a production\n", myname, s_lineno, input_file_name);
 }
 
 
-void
 prec_redeclared()
 {
     fprintf(stderr, "%s: w - line %d of  \"%s\", conflicting %%prec \
@@ -273,7 +253,6 @@ specifiers\n", myname, lineno, input_file_name);
 }
 
 
-void
 unterminated_action(a_lineno, a_line, a_cptr)
 int a_lineno;
 char *a_line;
@@ -286,7 +265,6 @@ char *a_cptr;
 }
 
 
-void
 dollar_warning(a_lineno, i)
 int a_lineno;
 int i;
@@ -296,7 +274,6 @@ end of the current rule\n", myname, a_lineno, input_file_name, i);
 }
 
 
-void
 dollar_error(a_lineno, a_line, a_cptr)
 int a_lineno;
 char *a_line;
@@ -309,7 +286,6 @@ char *a_cptr;
 }
 
 
-void
 untyped_lhs()
 {
     fprintf(stderr, "%s: w - line %d of \"%s\", $$ is untyped\n",
@@ -318,7 +294,6 @@ untyped_lhs()
 }
 
 
-void
 untyped_rhs(i, s)
 int i;
 char *s;
@@ -329,7 +304,6 @@ char *s;
 }
 
 
-void
 unknown_rhs(i)
 int i;
 {
@@ -339,7 +313,6 @@ int i;
 }
 
 
-void
 default_action_warning()
 {
     fprintf(stderr, "%s: w - line %d of \"%s\", the default action assigns an \
@@ -347,7 +320,6 @@ undefined value to $$\n", myname, lineno, input_file_name);
 }
 
 
-void
 undefined_goal(s)
 char *s;
 {
@@ -356,7 +328,6 @@ char *s;
 }
 
 
-void
 undefined_symbol_warning(s)
 char *s;
 {
diff --git a/frontend/jay/lalr.c b/frontend/jay/lalr.c
index d225636..bf9aec8 100644
--- a/frontend/jay/lalr.c
+++ b/frontend/jay/lalr.c
@@ -74,7 +74,6 @@ static short *VERTICES;
 static int top;
 
 
-void
 lalr()
 {
     tokensetsize = WORDSIZE(ntokens);
@@ -94,7 +93,6 @@ lalr()
 
 
 
-void
 set_state_table()
 {
     register core *sp;
@@ -106,7 +104,6 @@ set_state_table()
 
 
 
-void
 set_accessing_symbol()
 {
     register core *sp;
@@ -118,7 +115,6 @@ set_accessing_symbol()
 
 
 
-void
 set_shift_table()
 {
     register shifts *sp;
@@ -130,7 +126,6 @@ set_shift_table()
 
 
 
-void
 set_reduction_table()
 {
     register reductions *rp;
@@ -142,7 +137,6 @@ set_reduction_table()
 
 
 
-void
 set_maxrhs()
 {
   register short *itemp;
@@ -171,7 +165,6 @@ set_maxrhs()
 
 
 
-void
 initialize_LA()
 {
   register int i, j, k;
@@ -209,7 +202,6 @@ initialize_LA()
 }
 
 
-void
 set_goto_map()
 {
   register shifts *sp;
@@ -304,13 +296,10 @@ int symbol;
 	else
 	    high = middle - 1;
     }
-    /*NOTREACHED*/
-    return (-1);
 }
 
 
 
-void
 initialize_F()
 {
   register int i;
@@ -388,7 +377,6 @@ initialize_F()
 
 
 
-void
 build_relations()
 {
   register int i;
@@ -481,7 +469,6 @@ build_relations()
 }
 
 
-void
 add_lookback_edge(stateno, ruleno, gotono)
 int stateno, ruleno, gotono;
 {
@@ -567,14 +554,12 @@ int n;
 
 
 
-void
 compute_FOLLOWS()
 {
   digraph(includes);
 }
 
 
-void
 compute_lookaheads()
 {
   register int i, n;
@@ -609,7 +594,6 @@ compute_lookaheads()
 }
 
 
-void
 digraph(relation)
 short **relation;
 {
@@ -637,7 +621,6 @@ short **relation;
 
 
 
-void
 traverse(i)
 register int i;
 {
diff --git a/frontend/jay/lr0.c b/frontend/jay/lr0.c
index aa52e56..43106ea 100644
--- a/frontend/jay/lr0.c
+++ b/frontend/jay/lr0.c
@@ -69,7 +69,6 @@ static short **kernel_end;
 static short *kernel_items;
 
 
-void
 allocate_itemsets()
 {
     register short *itemp;
@@ -112,7 +111,6 @@ allocate_itemsets()
 }
 
 
-void
 allocate_storage()
 {
     allocate_itemsets();
@@ -122,7 +120,6 @@ allocate_storage()
 }
 
 
-void
 append_states()
 {
     register int i;
@@ -152,7 +149,6 @@ append_states()
 }
 
 
-void
 free_storage()
 {
     FREE(shift_symbol);
@@ -166,7 +162,6 @@ free_storage()
 
 
 
-void
 generate_states()
 {
     allocate_storage();
@@ -259,7 +254,6 @@ int symbol;
 
 
 
-void
 initialize_states()
 {
     register int i;
@@ -287,7 +281,6 @@ initialize_states()
 }
 
 
-void
 new_itemsets()
 {
     register int i;
@@ -365,7 +358,6 @@ int symbol;
 
 /* show_cores is used for debugging */
 
-void
 show_cores()
 {
     core *p;
@@ -401,7 +393,6 @@ show_cores()
 
 /* show_ritems is used for debugging */
 
-void
 show_ritems()
 {
     int i;
@@ -412,7 +403,6 @@ show_ritems()
 
 
 /* show_rrhs is used for debugging */
-void
 show_rrhs()
 {
     int i;
@@ -424,7 +414,6 @@ show_rrhs()
 
 /* show_shifts is used for debugging */
 
-void
 show_shifts()
 {
     shifts *p;
@@ -443,7 +432,6 @@ show_shifts()
 }
 
 
-void
 save_shifts()
 {
     register shifts *p;
@@ -478,7 +466,6 @@ save_shifts()
 
 
 
-void
 save_reductions()
 {
     register short *isp;
@@ -528,7 +515,6 @@ save_reductions()
 }
 
 
-void
 set_derives()
 {
     register int i, k;
@@ -559,7 +545,6 @@ set_derives()
 #endif
 }
 
-void
 free_derives()
 {
     FREE(derives[start_symbol]);
@@ -567,7 +552,6 @@ free_derives()
 }
 
 #ifdef	DEBUG
-void
 print_derives()
 {
     register int i;
@@ -590,7 +574,6 @@ print_derives()
 #endif
 
 
-void
 set_nullable()
 {
     register int i, j;
@@ -640,14 +623,12 @@ set_nullable()
 }
 
 
-void
 free_nullable()
 {
     FREE(nullable);
 }
 
 
-void
 lr0()
 {
     set_derives();
diff --git a/frontend/jay/main.c b/frontend/jay/main.c
index 566596a..bd7a4f5 100644
--- a/frontend/jay/main.c
+++ b/frontend/jay/main.c
@@ -98,7 +98,6 @@ extern char* mktemp();
 
 extern char *getenv();
 
-void
 done(k)
 int k;
 {
@@ -117,7 +116,6 @@ onintr(signo)
 }
 
 
-void
 set_signals()
 {
 #ifdef SIGINT
@@ -135,7 +133,6 @@ set_signals()
 }
 
 
-void
 usage()
 {
     fprintf(stderr, "usage: %s [-tvcp] [-b file_prefix] filename\n", myname);
@@ -256,7 +253,6 @@ unsigned n;
 }
 
 
-void
 create_file_names()
 {
     int i, len;
@@ -320,7 +316,6 @@ create_file_names()
 }
 
 
-void
 open_files()
 {
     create_file_names();
@@ -369,5 +364,4 @@ char *argv[];
     output();
     done(0);
     /*NOTREACHED*/
-    return (-1);
 }
diff --git a/frontend/jay/mkpar.c b/frontend/jay/mkpar.c
index f6f8629..42ead14 100644
--- a/frontend/jay/mkpar.c
+++ b/frontend/jay/mkpar.c
@@ -59,7 +59,6 @@ extern action *add_reductions();
 extern action *add_reduce();
 
 
-void
 make_parser()
 {
     register int i;
@@ -190,7 +189,6 @@ register int ruleno, symbol;
 }
 
 
-void
 find_final_state()
 {
     register int goal, i;
@@ -208,7 +206,6 @@ find_final_state()
 }
 
 
-void
 unused_rules()
 {
     register int i;
@@ -241,7 +238,6 @@ unused_rules()
 }
 
 
-void
 remove_conflicts()
 {
     register int i;
@@ -317,7 +313,6 @@ remove_conflicts()
 }
 
 
-void
 total_conflicts()
 {
     fprintf(stderr, "%s: ", myname);
@@ -367,7 +362,6 @@ int stateno;
 }
 
 
-void
 defreds()
 {
     register int i;
@@ -377,7 +371,6 @@ defreds()
 	defred[i] = sole_reduction(i);
 }
  
-void
 free_action_row(p)
 register action *p;
 {
@@ -391,7 +384,6 @@ register action *p;
     }
 }
 
-void
 free_parser()
 {
   register int i;
diff --git a/frontend/jay/output.c b/frontend/jay/output.c
index c8ee82c..cf504cd 100644
--- a/frontend/jay/output.c
+++ b/frontend/jay/output.c
@@ -62,7 +62,6 @@ void save_column (int symbol, int default_state);
 void output_trailing_text (void);
 void output_semantic_actions (void);
 
-void
 output () {
   int lno = 0;
   char buf [128];
@@ -103,7 +102,6 @@ output () {
   free_parser();
 }
 
-void
 output_rule_data()
 {
     register int i;
@@ -156,7 +154,6 @@ output_rule_data()
 }
 
 
-void
 output_yydefred()
 {
     register int i, j;
@@ -186,7 +183,6 @@ output_yydefred()
 }
 
 
-void
 output_actions()
 {
     nvectors = 2*nstates + nvars;
@@ -215,7 +211,6 @@ output_actions()
 }
 
 
-void
 token_actions()
 {
     register int i, j;
@@ -300,7 +295,6 @@ token_actions()
     FREE(actionrow);
 }
 
-void
 goto_actions()
 {
     register int i, j, k;
@@ -412,7 +406,6 @@ int default_state;
     width[symno] = sp1[-1] - sp[0] + 1;
 }
 
-void
 sort_actions()
 {
   register int i;
@@ -448,7 +441,6 @@ sort_actions()
 }
 
 
-void
 pack_table()
 {
     register int i;
@@ -626,13 +618,10 @@ int vector;
 	    return (j);
 	}
     }
-    /*NOTREACHED*/
-    return (-1);
 }
 
 
 
-void
 output_base()
 {
     register int i, j;
@@ -701,7 +690,6 @@ output_base()
 
 
 
-void
 output_table()
 {
     register int i;
@@ -731,7 +719,6 @@ output_table()
 
 
 
-void
 output_check()
 {
     register int i;
@@ -795,7 +782,6 @@ char *name;
 }
 
 
-void
 output_defines(prefix)
 char *prefix;
 {
@@ -835,7 +821,6 @@ char *prefix;
 }
 
 
-void
 output_stored_text(file, name)
 FILE *file;
 char *name;
@@ -863,7 +848,6 @@ char *name;
 }
 
 
-void
 output_debug()
 {
     register int i, j, k, max;
@@ -1154,7 +1138,6 @@ output_semantic_actions()
 }
 
 
-void
 free_itemsets()
 {
     register core *cp, *next;
@@ -1168,7 +1151,6 @@ free_itemsets()
 }
 
 
-void
 free_shifts()
 {
     register shifts *sp, *next;
@@ -1183,7 +1165,6 @@ free_shifts()
 
 
 
-void
 free_reductions()
 {
     register reductions *rp, *next;
diff --git a/frontend/jay/reader.c b/frontend/jay/reader.c
index 2a48a03..918f6a0 100644
--- a/frontend/jay/reader.c
+++ b/frontend/jay/reader.c
@@ -74,7 +74,7 @@ char *name_pool;
 char *line_format = "\t\t\t\t\t// line %d \"%s\"\n";
 char *default_line_format = "\t\t\t\t\t// line %d\n";
 
-void
+
 cachec(c)
 int c;
 {
@@ -243,8 +243,6 @@ nextc()
 	    return (*s);
 	}
     }
-    /*NOTREACHED*/
-    return (-1);
 }
 
 
@@ -304,7 +302,6 @@ keyword()
     }
     syntax_error(lineno, line, t_cptr);
     /*NOTREACHED*/
-    return (-1);
 }
 
 void
@@ -779,7 +776,6 @@ declare_types()
 }
 
 
-void
 declare_start()
 {
     register int c;
@@ -839,7 +835,6 @@ read_declarations()
 }
 
 
-void
 initialize_grammar()
 {
     nitems = 4;
@@ -871,7 +866,6 @@ initialize_grammar()
 }
 
 
-void
 expand_items()
 {
     maxitems += 300;
@@ -880,7 +874,6 @@ expand_items()
 }
 
 
-void
 expand_rules()
 {
     maxrules += 100;
@@ -893,7 +886,6 @@ expand_rules()
 }
 
 
-void
 advance_to_start()
 {
     register int c;
@@ -944,7 +936,6 @@ advance_to_start()
 }
 
 
-void
 start_rule(bp, s_lineno)
 register bucket *bp;
 int s_lineno;
@@ -960,7 +951,6 @@ int s_lineno;
 }
 
 
-void
 end_rule()
 {
     register int i;
@@ -980,7 +970,6 @@ end_rule()
 }
 
 
-void
 insert_empty_rule()
 {
     register bucket *bp, **bpp;
@@ -1313,7 +1302,6 @@ mark_symbol()
 }
 
 
-void
 read_grammar()
 {
     register int c;
@@ -1362,7 +1350,6 @@ free_tags()
 }
 
 
-void
 pack_names()
 {
     register bucket *bp;
@@ -1388,7 +1375,6 @@ pack_names()
 }
 
 
-void
 check_symbols()
 {
     register bucket *bp;
@@ -1407,7 +1393,6 @@ check_symbols()
 }
 
 
-void
 pack_symbols()
 {
     register bucket *bp;
@@ -1532,7 +1517,6 @@ pack_symbols()
 }
 
 
-void
 pack_grammar()
 {
     register int i, j;
@@ -1628,7 +1612,6 @@ print_grammar()
 }
 
 
-void
 reader()
 {
     create_symbol_table();
diff --git a/frontend/jay/symtab.c b/frontend/jay/symtab.c
index bc5660d..0c5f55c 100644
--- a/frontend/jay/symtab.c
+++ b/frontend/jay/symtab.c
@@ -119,7 +119,6 @@ char *name;
 }
 
 
-void
 create_symbol_table()
 {
     register int i;
@@ -140,7 +139,6 @@ create_symbol_table()
 }
 
 
-void
 free_symbol_table()
 {
     FREE(symbol_table);
@@ -148,7 +146,6 @@ free_symbol_table()
 }
 
 
-void
 free_symbols()
 {
     register bucket *p, *q;
diff --git a/frontend/jay/verbose.c b/frontend/jay/verbose.c
index 8d64dab..ff19de2 100644
--- a/frontend/jay/verbose.c
+++ b/frontend/jay/verbose.c
@@ -67,7 +67,6 @@ verbose()
 }
 
 
-void
 log_unused()
 {
     register int i;
@@ -87,7 +86,6 @@ log_unused()
 }
 
 
-void
 log_conflicts()
 {
     register int i;
@@ -116,7 +114,6 @@ log_conflicts()
 }
 
 
-void
 print_state(state)
 int state;
 {
@@ -131,7 +128,6 @@ int state;
 }
 
 
-void
 print_conflicts(state)
 int state;
 {
@@ -180,7 +176,6 @@ int state;
 }
 
 
-void
 print_core(state)
 int state;
 {
@@ -217,7 +212,6 @@ int state;
 }
 
 
-void
 print_nulls(state)
 int state;
 {
@@ -262,7 +256,6 @@ int state;
 }
 
 
-void
 print_actions(stateno)
 int stateno;
 {
@@ -290,7 +283,6 @@ int stateno;
 }
 
 
-void
 print_shifts(p)
 register action *p;
 {
@@ -316,7 +308,6 @@ register action *p;
 }
 
 
-void
 print_reductions(p, defred)
 register action *p;
 register int defred;
@@ -355,7 +346,6 @@ register int defred;
 }
 
 
-void
 print_gotos(stateno)
 int stateno;
 {
diff --git a/frontend/jay/warshall.c b/frontend/jay/warshall.c
index 2ff4141..4672244 100644
--- a/frontend/jay/warshall.c
+++ b/frontend/jay/warshall.c
@@ -40,7 +40,6 @@ static char sccsid[] = "@(#)warshall.c	5.4 (Berkeley) 5/24/93";
 
 #include "defs.h"
 
-void
 transitive_closure(R, n)
 unsigned *R;
 int n;
@@ -93,7 +92,6 @@ int n;
     }
 }
 
-void
 reflexive_transitive_closure(R, n)
 unsigned *R;
 int n;
diff --git a/frontend/libedit/Makefile.am b/frontend/libedit/Makefile.am
new file mode 100644
index 0000000..9e03757
--- /dev/null
+++ b/frontend/libedit/Makefile.am
@@ -0,0 +1,23 @@
+lib_LTLIBRARIES = libmonodebuggerreadline.la
+
+libmonodebuggerreadline_la_SOURCES = \
+	mono-debugger-readline.c mono-debugger-readline.h readline.c readline.h \
+	chared.c common.c el.c emacs.c fcns.c help.c hist.c history.c key.c map.c \
+	parse.c prompt.c read.c refresh.c search.c sig.c term.c tty.c vi.c vis.c unvis.c \
+	strlcpy.c strlcat.c chared.h common.h el.h emacs.h fcns.h help.h histedit.h hist.h \
+	key.h map.h parse.h prompt.h read.h refresh.h search.h sig.h sys.h term.h tty.h \
+	vi.h vis.h el_term.h filecomplete.h tokenizer.c filecomplete.c
+
+libmonodebuggerreadline_la_LIBADD = @BASE_DEPENDENCIES_LIBS@ @READLINE_DEPLIBS@
+if PLATFORM_X86_DARWIN
+libmonodebuggerreadline_la_LDFLAGS = -no-undefined -shared -Wl
+else
+libmonodebuggerreadline_la_LDFLAGS = -no-undefined -shared -Wl,-version-script=$(srcdir)/ldscript
+endif
+
+EXTRA_DIST = ldscript
+
+INCLUDES = @BASE_DEPENDENCIES_CFLAGS@ @glue_cflags@
+
+CLEANFILES = lib*.a lib*.dll
+
diff --git a/frontend/libedit/Makefile.in b/frontend/libedit/Makefile.in
new file mode 100644
index 0000000..da807e8
--- /dev/null
+++ b/frontend/libedit/Makefile.in
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+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-info: install-info-am
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libLTLIBRARIES clean-libtool ctags distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am \
+	install-libLTLIBRARIES install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-libLTLIBRARIES
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/frontend/libedit/chared.c b/frontend/libedit/chared.c
new file mode 100644
index 0000000..4b1e754
--- /dev/null
+++ b/frontend/libedit/chared.c
@@ -0,0 +1,771 @@
+/*	$NetBSD: chared.c,v 1.25 2005/08/08 01:41:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+/*
+ * chared.c: Character editor utilities
+ */
+#include <stdlib.h>
+#include "sys.h"
+#include "el.h"
+
+private void ch__clearmacro __P((EditLine *));
+
+/* value to leave unused in line buffer */
+#define	EL_LEAVE	2
+
+/* cv_undo():
+ *	Handle state for the vi undo command
+ */
+protected void
+cv_undo(EditLine *el)
+{
+	c_undo_t *vu = &el->el_chared.c_undo;
+	c_redo_t *r = &el->el_chared.c_redo;
+	unsigned int size;
+
+	/* Save entire line for undo */
+	size = el->el_line.lastchar - el->el_line.buffer;
+	vu->len = size;
+	vu->cursor = el->el_line.cursor - el->el_line.buffer;
+	memcpy(vu->buf, el->el_line.buffer, size);
+
+	/* save command info for redo */
+	r->count = el->el_state.doingarg ? el->el_state.argument : 0;
+	r->action = el->el_chared.c_vcmd.action;
+	r->pos = r->buf;
+	r->cmd = el->el_state.thiscmd;
+	r->ch = el->el_state.thisch;
+}
+
+/* cv_yank():
+ *	Save yank/delete data for paste
+ */
+protected void
+cv_yank(EditLine *el, const char *ptr, int size)
+{
+	c_kill_t *k = &el->el_chared.c_kill;
+
+	memcpy(k->buf, ptr, size +0u);
+	k->last = k->buf + size;
+}
+
+
+/* c_insert():
+ *	Insert num characters
+ */
+protected void
+c_insert(EditLine *el, int num)
+{
+	char *cp;
+
+	if (el->el_line.lastchar + num >= el->el_line.limit) {
+		if (!ch_enlargebufs(el, num +0u))
+			return;		/* can't go past end of buffer */
+	}
+
+	if (el->el_line.cursor < el->el_line.lastchar) {
+		/* if I must move chars */
+		for (cp = el->el_line.lastchar; cp >= el->el_line.cursor; cp--)
+			cp[num] = *cp;
+	}
+	el->el_line.lastchar += num;
+}
+
+
+/* c_delafter():
+ *	Delete num characters after the cursor
+ */
+protected void
+c_delafter(EditLine *el, int num)
+{
+
+	if (el->el_line.cursor + num > el->el_line.lastchar)
+		num = el->el_line.lastchar - el->el_line.cursor;
+
+	if (el->el_map.current != el->el_map.emacs) {
+		cv_undo(el);
+		cv_yank(el, el->el_line.cursor, num);
+	}
+
+	if (num > 0) {
+		char *cp;
+
+		for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
+			*cp = cp[num];
+
+		el->el_line.lastchar -= num;
+	}
+}
+
+
+/* c_delafter1():
+ *	Delete the character after the cursor, do not yank
+ */
+protected void
+c_delafter1(EditLine *el)
+{
+	char *cp;
+
+	for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
+		*cp = cp[1];
+
+	el->el_line.lastchar--;
+}
+
+
+/* c_delbefore():
+ *	Delete num characters before the cursor
+ */
+protected void
+c_delbefore(EditLine *el, int num)
+{
+
+	if (el->el_line.cursor - num < el->el_line.buffer)
+		num = el->el_line.cursor - el->el_line.buffer;
+
+	if (el->el_map.current != el->el_map.emacs) {
+		cv_undo(el);
+		cv_yank(el, el->el_line.cursor - num, num);
+	}
+
+	if (num > 0) {
+		char *cp;
+
+		for (cp = el->el_line.cursor - num;
+		    cp <= el->el_line.lastchar;
+		    cp++)
+			*cp = cp[num];
+
+		el->el_line.lastchar -= num;
+	}
+}
+
+
+/* c_delbefore1():
+ *	Delete the character before the cursor, do not yank
+ */
+protected void
+c_delbefore1(EditLine *el)
+{
+	char *cp;
+
+	for (cp = el->el_line.cursor - 1; cp <= el->el_line.lastchar; cp++)
+		*cp = cp[1];
+
+	el->el_line.lastchar--;
+}
+
+
+/* ce__isword():
+ *	Return if p is part of a word according to emacs
+ */
+protected int
+ce__isword(int p)
+{
+	return (isalnum(p) || strchr("*?_-[]~=", p) != NULL);
+}
+
+
+/* cv__isword():
+ *	Return if p is part of a word according to vi
+ */
+protected int
+cv__isword(int p)
+{
+	if (isalnum(p) || p == '_')
+		return 1;
+	if (isgraph(p))
+		return 2;
+	return 0;
+}
+
+
+/* cv__isWord():
+ *	Return if p is part of a big word according to vi
+ */
+protected int
+cv__isWord(int p)
+{
+	return (!isspace(p));
+}
+
+
+/* c__prev_word():
+ *	Find the previous word
+ */
+protected char *
+c__prev_word(char *p, char *low, int n, int (*wtest)(int))
+{
+	p--;
+
+	while (n--) {
+		while ((p >= low) && !(*wtest)((unsigned char) *p))
+			p--;
+		while ((p >= low) && (*wtest)((unsigned char) *p))
+			p--;
+	}
+
+	/* cp now points to one character before the word */
+	p++;
+	if (p < low)
+		p = low;
+	/* cp now points where we want it */
+	return (p);
+}
+
+
+/* c__next_word():
+ *	Find the next word
+ */
+protected char *
+c__next_word(char *p, char *high, int n, int (*wtest)(int))
+{
+	while (n--) {
+		while ((p < high) && !(*wtest)((unsigned char) *p))
+			p++;
+		while ((p < high) && (*wtest)((unsigned char) *p))
+			p++;
+	}
+	if (p > high)
+		p = high;
+	/* p now points where we want it */
+	return (p);
+}
+
+/* cv_next_word():
+ *	Find the next word vi style
+ */
+protected char *
+cv_next_word(EditLine *el, char *p, char *high, int n, int (*wtest)(int))
+{
+	int test;
+
+	while (n--) {
+		test = (*wtest)((unsigned char) *p);
+		while ((p < high) && (*wtest)((unsigned char) *p) == test)
+			p++;
+		/*
+		 * vi historically deletes with cw only the word preserving the
+		 * trailing whitespace! This is not what 'w' does..
+		 */
+		if (n || el->el_chared.c_vcmd.action != (DELETE|INSERT))
+			while ((p < high) && isspace((unsigned char) *p))
+				p++;
+	}
+
+	/* p now points where we want it */
+	if (p > high)
+		return (high);
+	else
+		return (p);
+}
+
+
+/* cv_prev_word():
+ *	Find the previous word vi style
+ */
+protected char *
+cv_prev_word(char *p, char *low, int n, int (*wtest)(int))
+{
+	int test;
+
+	p--;
+	while (n--) {
+		while ((p > low) && isspace((unsigned char) *p))
+			p--;
+		test = (*wtest)((unsigned char) *p);
+		while ((p >= low) && (*wtest)((unsigned char) *p) == test)
+			p--;
+	}
+	p++;
+
+	/* p now points where we want it */
+	if (p < low)
+		return (low);
+	else
+		return (p);
+}
+
+
+#ifdef notdef
+/* c__number():
+ *	Ignore character p points to, return number appearing after that.
+ * 	A '$' by itself means a big number; "$-" is for negative; '^' means 1.
+ * 	Return p pointing to last char used.
+ */
+protected char *
+c__number(
+    char *p,	/* character position */
+    int *num,	/* Return value	*/
+    int dval)	/* dval is the number to subtract from like $-3 */
+{
+	int i;
+	int sign = 1;
+
+	if (*++p == '^') {
+		*num = 1;
+		return (p);
+	}
+	if (*p == '$') {
+		if (*++p != '-') {
+			*num = 0x7fffffff;	/* Handle $ */
+			return (--p);
+		}
+		sign = -1;			/* Handle $- */
+		++p;
+	}
+	for (i = 0; isdigit((unsigned char) *p); i = 10 * i + *p++ - '0')
+		continue;
+	*num = (sign < 0 ? dval - i : i);
+	return (--p);
+}
+#endif
+
+/* cv_delfini():
+ *	Finish vi delete action
+ */
+protected void
+cv_delfini(EditLine *el)
+{
+	int size;
+	int action = el->el_chared.c_vcmd.action;
+
+	if (action & INSERT)
+		el->el_map.current = el->el_map.key;
+
+	if (el->el_chared.c_vcmd.pos == 0)
+		/* sanity */
+		return;
+
+	size = el->el_line.cursor - el->el_chared.c_vcmd.pos;
+	if (size == 0)
+		size = 1;
+	el->el_line.cursor = el->el_chared.c_vcmd.pos;
+	if (action & YANK) {
+		if (size > 0)
+			cv_yank(el, el->el_line.cursor, size);
+		else
+			cv_yank(el, el->el_line.cursor + size, -size);
+	} else {
+		if (size > 0) {
+			c_delafter(el, size);
+			re_refresh_cursor(el);
+		} else  {
+			c_delbefore(el, -size);
+			el->el_line.cursor += size;
+		}
+	}
+	el->el_chared.c_vcmd.action = NOP;
+}
+
+
+#ifdef notdef
+/* ce__endword():
+ *	Go to the end of this word according to emacs
+ */
+protected char *
+ce__endword(char *p, char *high, int n)
+{
+	p++;
+
+	while (n--) {
+		while ((p < high) && isspace((unsigned char) *p))
+			p++;
+		while ((p < high) && !isspace((unsigned char) *p))
+			p++;
+	}
+
+	p--;
+	return (p);
+}
+#endif
+
+
+/* cv__endword():
+ *	Go to the end of this word according to vi
+ */
+protected char *
+cv__endword(char *p, char *high, int n, int (*wtest)(int))
+{
+	int test;
+
+	p++;
+
+	while (n--) {
+		while ((p < high) && isspace((unsigned char) *p))
+			p++;
+
+		test = (*wtest)((unsigned char) *p);
+		while ((p < high) && (*wtest)((unsigned char) *p) == test)
+			p++;
+	}
+	p--;
+	return (p);
+}
+
+/* ch_init():
+ *	Initialize the character editor
+ */
+protected int
+ch_init(EditLine *el)
+{
+	c_macro_t *ma = &el->el_chared.c_macro;
+
+	el->el_line.buffer		= (char *) el_malloc(EL_BUFSIZ);
+	if (el->el_line.buffer == NULL)
+		return (-1);
+
+	(void) memset(el->el_line.buffer, 0, EL_BUFSIZ);
+	el->el_line.cursor		= el->el_line.buffer;
+	el->el_line.lastchar		= el->el_line.buffer;
+	el->el_line.limit		= &el->el_line.buffer[EL_BUFSIZ - EL_LEAVE];
+
+	el->el_chared.c_undo.buf	= (char *) el_malloc(EL_BUFSIZ);
+	if (el->el_chared.c_undo.buf == NULL)
+		return (-1);
+	(void) memset(el->el_chared.c_undo.buf, 0, EL_BUFSIZ);
+	el->el_chared.c_undo.len	= -1;
+	el->el_chared.c_undo.cursor	= 0;
+	el->el_chared.c_redo.buf	= (char *) el_malloc(EL_BUFSIZ);
+	if (el->el_chared.c_redo.buf == NULL)
+		return (-1);
+	el->el_chared.c_redo.pos	= el->el_chared.c_redo.buf;
+	el->el_chared.c_redo.lim	= el->el_chared.c_redo.buf + EL_BUFSIZ;
+	el->el_chared.c_redo.cmd	= ED_UNASSIGNED;
+
+	el->el_chared.c_vcmd.action	= NOP;
+	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
+
+	el->el_chared.c_kill.buf	= (char *) el_malloc(EL_BUFSIZ);
+	if (el->el_chared.c_kill.buf == NULL)
+		return (-1);
+	(void) memset(el->el_chared.c_kill.buf, 0, EL_BUFSIZ);
+	el->el_chared.c_kill.mark	= el->el_line.buffer;
+	el->el_chared.c_kill.last	= el->el_chared.c_kill.buf;
+
+	el->el_map.current		= el->el_map.key;
+
+	el->el_state.inputmode		= MODE_INSERT; /* XXX: save a default */
+	el->el_state.doingarg		= 0;
+	el->el_state.metanext		= 0;
+	el->el_state.argument		= 1;
+	el->el_state.lastcmd		= ED_UNASSIGNED;
+
+	ma->level	= -1;
+	ma->offset	= 0;
+	ma->macro	= (char **) el_malloc(EL_MAXMACRO * sizeof(char *));
+	if (ma->macro == NULL)
+		return (-1);
+	return (0);
+}
+
+/* ch_reset():
+ *	Reset the character editor
+ */
+protected void
+ch_reset(EditLine *el, int mclear)
+{
+	el->el_line.cursor		= el->el_line.buffer;
+	el->el_line.lastchar		= el->el_line.buffer;
+
+	el->el_chared.c_undo.len	= -1;
+	el->el_chared.c_undo.cursor	= 0;
+
+	el->el_chared.c_vcmd.action	= NOP;
+	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
+
+	el->el_chared.c_kill.mark	= el->el_line.buffer;
+
+	el->el_map.current		= el->el_map.key;
+
+	el->el_state.inputmode		= MODE_INSERT; /* XXX: save a default */
+	el->el_state.doingarg		= 0;
+	el->el_state.metanext		= 0;
+	el->el_state.argument		= 1;
+	el->el_state.lastcmd		= ED_UNASSIGNED;
+
+	el->el_history.eventno		= 0;
+
+	if (mclear)
+		ch__clearmacro(el);
+}
+
+private void
+ch__clearmacro(el)
+	EditLine *el;
+{
+	c_macro_t *ma = &el->el_chared.c_macro;
+	while (ma->level >= 0)
+		el_free((ptr_t)ma->macro[ma->level--]);
+}
+
+/* ch_enlargebufs():
+ *	Enlarge line buffer to be able to hold twice as much characters.
+ *	Returns 1 if successful, 0 if not.
+ */
+protected int
+ch_enlargebufs(el, addlen)
+	EditLine *el;
+	size_t addlen;
+{
+	size_t sz, newsz;
+	char *newbuffer, *oldbuf, *oldkbuf;
+
+	sz = el->el_line.limit - el->el_line.buffer + EL_LEAVE;
+	newsz = sz * 2;
+	/*
+	 * If newly required length is longer than current buffer, we need
+	 * to make the buffer big enough to hold both old and new stuff.
+	 */
+	if (addlen > sz) {
+		while(newsz - sz < addlen)
+			newsz *= 2;
+	}
+
+	/*
+	 * Reallocate line buffer.
+	 */
+	newbuffer = el_realloc(el->el_line.buffer, newsz);
+	if (!newbuffer)
+		return 0;
+
+	/* zero the newly added memory, leave old data in */
+	(void) memset(&newbuffer[sz], 0, newsz - sz);
+	    
+	oldbuf = el->el_line.buffer;
+
+	el->el_line.buffer = newbuffer;
+	el->el_line.cursor = newbuffer + (el->el_line.cursor - oldbuf);
+	el->el_line.lastchar = newbuffer + (el->el_line.lastchar - oldbuf);
+	/* don't set new size until all buffers are enlarged */
+	el->el_line.limit  = &newbuffer[sz - EL_LEAVE];
+
+	/*
+	 * Reallocate kill buffer.
+	 */
+	newbuffer = el_realloc(el->el_chared.c_kill.buf, newsz);
+	if (!newbuffer)
+		return 0;
+
+	/* zero the newly added memory, leave old data in */
+	(void) memset(&newbuffer[sz], 0, newsz - sz);
+
+	oldkbuf = el->el_chared.c_kill.buf;
+
+	el->el_chared.c_kill.buf = newbuffer;
+	el->el_chared.c_kill.last = newbuffer +
+					(el->el_chared.c_kill.last - oldkbuf);
+	el->el_chared.c_kill.mark = el->el_line.buffer +
+					(el->el_chared.c_kill.mark - oldbuf);
+
+	/*
+	 * Reallocate undo buffer.
+	 */
+	newbuffer = el_realloc(el->el_chared.c_undo.buf, newsz);
+	if (!newbuffer)
+		return 0;
+
+	/* zero the newly added memory, leave old data in */
+	(void) memset(&newbuffer[sz], 0, newsz - sz);
+	el->el_chared.c_undo.buf = newbuffer;
+
+	newbuffer = el_realloc(el->el_chared.c_redo.buf, newsz);
+	if (!newbuffer)
+		return 0;
+	el->el_chared.c_redo.pos = newbuffer +
+			(el->el_chared.c_redo.pos - el->el_chared.c_redo.buf);
+	el->el_chared.c_redo.lim = newbuffer +
+			(el->el_chared.c_redo.lim - el->el_chared.c_redo.buf);
+	el->el_chared.c_redo.buf = newbuffer;
+	
+	if (!hist_enlargebuf(el, sz, newsz))
+		return 0;
+
+	/* Safe to set enlarged buffer size */
+	el->el_line.limit  = &el->el_line.buffer[newsz - EL_LEAVE];
+	return 1;
+}
+
+/* ch_end():
+ *	Free the data structures used by the editor
+ */
+protected void
+ch_end(EditLine *el)
+{
+	el_free((ptr_t) el->el_line.buffer);
+	el->el_line.buffer = NULL;
+	el->el_line.limit = NULL;
+	el_free((ptr_t) el->el_chared.c_undo.buf);
+	el->el_chared.c_undo.buf = NULL;
+	el_free((ptr_t) el->el_chared.c_redo.buf);
+	el->el_chared.c_redo.buf = NULL;
+	el->el_chared.c_redo.pos = NULL;
+	el->el_chared.c_redo.lim = NULL;
+	el->el_chared.c_redo.cmd = ED_UNASSIGNED;
+	el_free((ptr_t) el->el_chared.c_kill.buf);
+	el->el_chared.c_kill.buf = NULL;
+	ch_reset(el, 1);
+	el_free((ptr_t) el->el_chared.c_macro.macro);
+	el->el_chared.c_macro.macro = NULL;
+}
+
+
+/* el_insertstr():
+ *	Insert string at cursorI
+ */
+public int
+el_insertstr(EditLine *el, const char *s)
+{
+	size_t len;
+
+	if ((len = strlen(s)) == 0)
+		return (-1);
+	if (el->el_line.lastchar + len >= el->el_line.limit) {
+		if (!ch_enlargebufs(el, len))
+			return (-1);
+	}
+
+	c_insert(el, (int)len);
+	while (*s)
+		*el->el_line.cursor++ = *s++;
+	return (0);
+}
+
+
+/* el_deletestr():
+ *	Delete num characters before the cursor
+ */
+public void
+el_deletestr(EditLine *el, int n)
+{
+	if (n <= 0)
+		return;
+
+	if (el->el_line.cursor < &el->el_line.buffer[n])
+		return;
+
+	c_delbefore(el, n);		/* delete before dot */
+	el->el_line.cursor -= n;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer;
+}
+
+/* c_gets():
+ *	Get a string
+ */
+protected int
+c_gets(EditLine *el, char *buf, const char *prompt)
+{
+	char ch;
+	int len;
+	char *cp = el->el_line.buffer;
+
+	if (prompt) {
+		len = strlen(prompt);
+		memcpy(cp, prompt, len + 0u);
+		cp += len;
+	}
+	len = 0;
+
+	for (;;) {
+		el->el_line.cursor = cp;
+		*cp = ' ';
+		el->el_line.lastchar = cp + 1;
+		re_refresh(el);
+
+		if (el_getc(el, &ch) != 1) {
+			ed_end_of_file(el, 0);
+			len = -1;
+			break;
+		}
+
+		switch (ch) {
+
+		case 0010:	/* Delete and backspace */
+		case 0177:
+			if (len <= 0) {
+				len = -1;
+				break;
+			}
+			cp--;
+			continue;
+
+		case 0033:	/* ESC */
+		case '\r':	/* Newline */
+		case '\n':
+			buf[len] = ch;
+			break;
+
+		default:
+			if (len >= EL_BUFSIZ - 16)
+				term_beep(el);
+			else {
+				buf[len++] = ch;
+				*cp++ = ch;
+			}
+			continue;
+		}
+		break;
+	}
+
+	el->el_line.buffer[0] = '\0';
+	el->el_line.lastchar = el->el_line.buffer;
+	el->el_line.cursor = el->el_line.buffer;
+	return len;
+}
+
+
+/* c_hpos():
+ *	Return the current horizontal position of the cursor
+ */
+protected int
+c_hpos(EditLine *el)
+{
+	char *ptr;
+
+	/*
+	 * Find how many characters till the beginning of this line.
+	 */
+	if (el->el_line.cursor == el->el_line.buffer)
+		return (0);
+	else {
+		for (ptr = el->el_line.cursor - 1;
+		     ptr >= el->el_line.buffer && *ptr != '\n';
+		     ptr--)
+			continue;
+		return (el->el_line.cursor - ptr - 1);
+	}
+}
diff --git a/frontend/libedit/chared.h b/frontend/libedit/chared.h
new file mode 100644
index 0000000..d1bf254
--- /dev/null
+++ b/frontend/libedit/chared.h
@@ -0,0 +1,167 @@
+/*	$NetBSD: chared.h,v 1.17 2006/03/06 21:11:56 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)chared.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.chared.h: Character editor interface
+ */
+#ifndef _h_el_chared
+#define	_h_el_chared
+
+#include <ctype.h>
+#include <string.h>
+
+#include "histedit.h"
+
+#define	EL_MAXMACRO	10
+
+/*
+ * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
+ * like real vi: i.e. the transition from command<->insert modes moves
+ * the cursor.
+ *
+ * On the other hand we really don't want to move the cursor, because
+ * all the editing commands don't include the character under the cursor.
+ * Probably the best fix is to make all the editing commands aware of
+ * this fact.
+ */
+#define	VI_MOVE
+
+
+typedef struct c_macro_t {
+	int	  level;
+	int	  offset;
+	char	**macro;
+} c_macro_t;
+
+/*
+ * Undo information for vi - no undo in emacs (yet)
+ */
+typedef struct c_undo_t {
+	int	 len;			/* length of saved line */
+	int	 cursor;		/* position of saved cursor */
+	char	*buf;			/* full saved text */
+} c_undo_t;
+
+/* redo for vi */
+typedef struct c_redo_t {
+	char	*buf;			/* redo insert key sequence */
+	char	*pos;
+	char	*lim;
+	el_action_t	cmd;		/* command to redo */
+	char	ch;			/* char that invoked it */
+	int	count;
+	int	action;			/* from cv_action() */
+} c_redo_t;
+
+/*
+ * Current action information for vi
+ */
+typedef struct c_vcmd_t {
+	int	 action;
+	char	*pos;
+} c_vcmd_t;
+
+/*
+ * Kill buffer for emacs
+ */
+typedef struct c_kill_t {
+	char	*buf;
+	char	*last;
+	char	*mark;
+} c_kill_t;
+
+/*
+ * Note that we use both data structures because the user can bind
+ * commands from both editors!
+ */
+typedef struct el_chared_t {
+	c_undo_t	c_undo;
+	c_kill_t	c_kill;
+	c_redo_t	c_redo;
+	c_vcmd_t	c_vcmd;
+	c_macro_t	c_macro;
+} el_chared_t;
+
+
+#define	STRQQ		"\"\""
+
+#define	isglob(a)	(strchr("*[]?", (a)) != NULL)
+#define	isword(a)	(isprint(a))
+
+#define	NOP		0x00
+#define	DELETE		0x01
+#define	INSERT		0x02
+#define	YANK		0x04
+
+#define	CHAR_FWD	(+1)
+#define	CHAR_BACK	(-1)
+
+#define	MODE_INSERT	0
+#define	MODE_REPLACE	1
+#define	MODE_REPLACE_1	2
+
+#include "common.h"
+#include "vi.h"
+#include "emacs.h"
+#include "search.h"
+#include "fcns.h"
+
+
+protected int	 cv__isword(int);
+protected int	 cv__isWord(int);
+protected void	 cv_delfini(EditLine *);
+protected char	*cv__endword(char *, char *, int, int (*)(int));
+protected int	 ce__isword(int);
+protected void	 cv_undo(EditLine *);
+protected void	 cv_yank(EditLine *, const char *, int);
+protected char	*cv_next_word(EditLine*, char *, char *, int, int (*)(int));
+protected char	*cv_prev_word(char *, char *, int, int (*)(int));
+protected char	*c__next_word(char *, char *, int, int (*)(int));
+protected char	*c__prev_word(char *, char *, int, int (*)(int));
+protected void	 c_insert(EditLine *, int);
+protected void	 c_delbefore(EditLine *, int);
+protected void	 c_delbefore1(EditLine *);
+protected void	 c_delafter(EditLine *, int);
+protected void	 c_delafter1(EditLine *);
+protected int	 c_gets(EditLine *, char *, const char *);
+protected int	 c_hpos(EditLine *);
+
+protected int	 ch_init(EditLine *);
+protected void	 ch_reset(EditLine *, int);
+protected int	 ch_enlargebufs(EditLine *, size_t);
+protected void	 ch_end(EditLine *);
+
+#endif /* _h_el_chared */
diff --git a/frontend/libedit/common.c b/frontend/libedit/common.c
new file mode 100644
index 0000000..d42f49d
--- /dev/null
+++ b/frontend/libedit/common.c
@@ -0,0 +1,915 @@
+/*	$NetBSD: common.c,v 1.19 2006/03/06 21:11:56 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * common.c: Common Editor functions
+ */
+#include "el.h"
+
+/* ed_end_of_file():
+ *	Indicate end of file
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_end_of_file(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	re_goto_bottom(el);
+	*el->el_line.lastchar = '\0';
+	return (CC_EOF);
+}
+
+
+/* ed_insert():
+ *	Add character to the line
+ *	Insert a character [bound to all insert keys]
+ */
+protected el_action_t
+ed_insert(EditLine *el, int c)
+{
+	int count = el->el_state.argument;
+
+	if (c == '\0')
+		return (CC_ERROR);
+
+	if (el->el_line.lastchar + el->el_state.argument >=
+	    el->el_line.limit) {
+		/* end of buffer space, try to allocate more */
+		if (!ch_enlargebufs(el, (size_t) count))
+			return CC_ERROR;	/* error allocating more */
+	}
+
+	if (count == 1) {
+		if (el->el_state.inputmode == MODE_INSERT
+		    || el->el_line.cursor >= el->el_line.lastchar)
+			c_insert(el, 1);
+
+		*el->el_line.cursor++ = c;
+		re_fastaddc(el);		/* fast refresh for one char. */
+	} else {
+		if (el->el_state.inputmode != MODE_REPLACE_1)
+			c_insert(el, el->el_state.argument);
+
+		while (count-- && el->el_line.cursor < el->el_line.lastchar)
+			*el->el_line.cursor++ = c;
+		re_refresh(el);
+	}
+
+	if (el->el_state.inputmode == MODE_REPLACE_1)
+		return vi_command_mode(el, 0);
+
+	return (CC_NORM);
+}
+
+
+/* ed_delete_prev_word():
+ *	Delete from beginning of current word to cursor
+ *	[M-^?] [^W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_prev_word(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *cp, *p, *kp;
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return (CC_ERROR);
+
+	cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
+	    el->el_state.argument, ce__isword);
+
+	for (p = cp, kp = el->el_chared.c_kill.buf; p < el->el_line.cursor; p++)
+		*kp++ = *p;
+	el->el_chared.c_kill.last = kp;
+
+	c_delbefore(el, el->el_line.cursor - cp);	/* delete before dot */
+	el->el_line.cursor = cp;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer; /* bounds check */
+	return (CC_REFRESH);
+}
+
+
+/* ed_delete_next_char():
+ *	Delete character under cursor
+ *	[^D] [x]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_next_char(EditLine *el, int c)
+{
+#ifdef notdef			/* XXX */
+#define	EL	el->el_line
+	(void) fprintf(el->el_errlfile,
+	    "\nD(b: %x(%s)  c: %x(%s) last: %x(%s) limit: %x(%s)\n",
+	    EL.buffer, EL.buffer, EL.cursor, EL.cursor, EL.lastchar,
+	    EL.lastchar, EL.limit, EL.limit);
+#endif
+	if (el->el_line.cursor == el->el_line.lastchar) {
+			/* if I'm at the end */
+		if (el->el_map.type == MAP_VI) {
+			if (el->el_line.cursor == el->el_line.buffer) {
+				/* if I'm also at the beginning */
+#ifdef KSHVI
+				return (CC_ERROR);
+#else
+				/* then do an EOF */
+				term_writechar(el, c);
+				return (CC_EOF);
+#endif
+			} else {
+#ifdef KSHVI
+				el->el_line.cursor--;
+#else
+				return (CC_ERROR);
+#endif
+			}
+		} else {
+			if (el->el_line.cursor != el->el_line.buffer)
+				el->el_line.cursor--;
+			else
+				return (CC_ERROR);
+		}
+	}
+	c_delafter(el, el->el_state.argument);	/* delete after dot */
+	if (el->el_line.cursor >= el->el_line.lastchar &&
+	    el->el_line.cursor > el->el_line.buffer)
+			/* bounds check */
+		el->el_line.cursor = el->el_line.lastchar - 1;
+	return (CC_REFRESH);
+}
+
+
+/* ed_kill_line():
+ *	Cut to the end of line
+ *	[^K] [^K]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_kill_line(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *kp, *cp;
+
+	cp = el->el_line.cursor;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_line.lastchar)
+		*kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+			/* zap! -- delete to end */
+	el->el_line.lastchar = el->el_line.cursor;
+	return (CC_REFRESH);
+}
+
+
+/* ed_move_to_end():
+ *	Move cursor to the end of line
+ *	[^E] [^E]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_move_to_end(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_line.cursor = el->el_line.lastchar;
+	if (el->el_map.type == MAP_VI) {
+#ifdef VI_MOVE
+		el->el_line.cursor--;
+#endif
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return (CC_REFRESH);
+		}
+	}
+	return (CC_CURSOR);
+}
+
+
+/* ed_move_to_beg():
+ *	Move cursor to the beginning of line
+ *	[^A] [^A]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_move_to_beg(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_line.cursor = el->el_line.buffer;
+
+	if (el->el_map.type == MAP_VI) {
+			/* We want FIRST non space character */
+		while (isspace((unsigned char) *el->el_line.cursor))
+			el->el_line.cursor++;
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return (CC_REFRESH);
+		}
+	}
+	return (CC_CURSOR);
+}
+
+
+/* ed_transpose_chars():
+ *	Exchange the character to the left of the cursor with the one under it
+ *	[^T] [^T]
+ */
+protected el_action_t
+ed_transpose_chars(EditLine *el, int c)
+{
+
+	if (el->el_line.cursor < el->el_line.lastchar) {
+		if (el->el_line.lastchar <= &el->el_line.buffer[1])
+			return (CC_ERROR);
+		else
+			el->el_line.cursor++;
+	}
+	if (el->el_line.cursor > &el->el_line.buffer[1]) {
+		/* must have at least two chars entered */
+		c = el->el_line.cursor[-2];
+		el->el_line.cursor[-2] = el->el_line.cursor[-1];
+		el->el_line.cursor[-1] = c;
+		return (CC_REFRESH);
+	} else
+		return (CC_ERROR);
+}
+
+
+/* ed_next_char():
+ *	Move to the right one character
+ *	[^F] [^F]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_char(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *lim = el->el_line.lastchar;
+
+	if (el->el_line.cursor >= lim ||
+	    (el->el_line.cursor == lim - 1 &&
+	    el->el_map.type == MAP_VI &&
+	    el->el_chared.c_vcmd.action == NOP))
+		return (CC_ERROR);
+
+	el->el_line.cursor += el->el_state.argument;
+	if (el->el_line.cursor > lim)
+		el->el_line.cursor = lim;
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return (CC_REFRESH);
+		}
+	return (CC_CURSOR);
+}
+
+
+/* ed_prev_word():
+ *	Move to the beginning of the current word
+ *	[M-b] [b]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_word(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return (CC_ERROR);
+
+	el->el_line.cursor = c__prev_word(el->el_line.cursor,
+	    el->el_line.buffer,
+	    el->el_state.argument,
+	    ce__isword);
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return (CC_REFRESH);
+		}
+	return (CC_CURSOR);
+}
+
+
+/* ed_prev_char():
+ *	Move to the left one character
+ *	[^B] [^B]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_char(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor > el->el_line.buffer) {
+		el->el_line.cursor -= el->el_state.argument;
+		if (el->el_line.cursor < el->el_line.buffer)
+			el->el_line.cursor = el->el_line.buffer;
+
+		if (el->el_map.type == MAP_VI)
+			if (el->el_chared.c_vcmd.action != NOP) {
+				cv_delfini(el);
+				return (CC_REFRESH);
+			}
+		return (CC_CURSOR);
+	} else
+		return (CC_ERROR);
+}
+
+
+/* ed_quoted_insert():
+ *	Add the next character typed verbatim
+ *	[^V] [^V]
+ */
+protected el_action_t
+ed_quoted_insert(EditLine *el, int c)
+{
+	int num;
+	char tc;
+
+	tty_quotemode(el);
+	num = el_getc(el, &tc);
+	c = (unsigned char) tc;
+	tty_noquotemode(el);
+	if (num == 1)
+		return (ed_insert(el, c));
+	else
+		return (ed_end_of_file(el, 0));
+}
+
+
+/* ed_digit():
+ *	Adds to argument or enters a digit
+ */
+protected el_action_t
+ed_digit(EditLine *el, int c)
+{
+
+	if (!isdigit(c))
+		return (CC_ERROR);
+
+	if (el->el_state.doingarg) {
+			/* if doing an arg, add this in... */
+		if (el->el_state.lastcmd == EM_UNIVERSAL_ARGUMENT)
+			el->el_state.argument = c - '0';
+		else {
+			if (el->el_state.argument > 1000000)
+				return (CC_ERROR);
+			el->el_state.argument =
+			    (el->el_state.argument * 10) + (c - '0');
+		}
+		return (CC_ARGHACK);
+	}
+
+	return ed_insert(el, c);
+}
+
+
+/* ed_argument_digit():
+ *	Digit that starts argument
+ *	For ESC-n
+ */
+protected el_action_t
+ed_argument_digit(EditLine *el, int c)
+{
+
+	if (!isdigit(c))
+		return (CC_ERROR);
+
+	if (el->el_state.doingarg) {
+		if (el->el_state.argument > 1000000)
+			return (CC_ERROR);
+		el->el_state.argument = (el->el_state.argument * 10) +
+		    (c - '0');
+	} else {		/* else starting an argument */
+		el->el_state.argument = c - '0';
+		el->el_state.doingarg = 1;
+	}
+	return (CC_ARGHACK);
+}
+
+
+/* ed_unassigned():
+ *	Indicates unbound character
+ *	Bound to keys that are not assigned
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_unassigned(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	return (CC_ERROR);
+}
+
+
+/**
+ ** TTY key handling.
+ **/
+
+/* ed_tty_sigint():
+ *	Tty interrupt character
+ *	[^C]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigint(EditLine *el __attribute__((__unused__)), 
+	      int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_tty_dsusp():
+ *	Tty delayed suspend character
+ *	[^Y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_dsusp(EditLine *el __attribute__((__unused__)), 
+	     int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_tty_flush_output():
+ *	Tty flush output characters
+ *	[^O]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_flush_output(EditLine *el __attribute__((__unused__)), 
+		    int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_tty_sigquit():
+ *	Tty quit character
+ *	[^\]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigquit(EditLine *el __attribute__((__unused__)), 
+	       int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_tty_sigtstp():
+ *	Tty suspend character
+ *	[^Z]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigtstp(EditLine *el __attribute__((__unused__)), 
+	       int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_tty_stop_output():
+ *	Tty disallow output characters
+ *	[^S]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_stop_output(EditLine *el __attribute__((__unused__)), 
+		   int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_tty_start_output():
+ *	Tty allow output characters
+ *	[^Q]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_start_output(EditLine *el __attribute__((__unused__)), 
+		    int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_newline():
+ *	Execute command
+ *	[^J]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_newline(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	re_goto_bottom(el);
+	*el->el_line.lastchar++ = '\n';
+	*el->el_line.lastchar = '\0';
+	return (CC_NEWLINE);
+}
+
+
+/* ed_delete_prev_char():
+ *	Delete the character to the left of the cursor
+ *	[^?]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_prev_char(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor <= el->el_line.buffer)
+		return (CC_ERROR);
+
+	c_delbefore(el, el->el_state.argument);
+	el->el_line.cursor -= el->el_state.argument;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer;
+	return (CC_REFRESH);
+}
+
+
+/* ed_clear_screen():
+ *	Clear screen leaving current line at the top
+ *	[^L]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_clear_screen(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	term_clear_screen(el);	/* clear the whole real screen */
+	re_clear_display(el);	/* reset everything */
+	return (CC_REFRESH);
+}
+
+
+/* ed_redisplay():
+ *	Redisplay everything
+ *	^R
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_redisplay(EditLine *el __attribute__((__unused__)), 
+	     int c __attribute__((__unused__)))
+{
+
+	return (CC_REDISPLAY);
+}
+
+
+/* ed_start_over():
+ *	Erase current line and start from scratch
+ *	[^G]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_start_over(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	ch_reset(el, 0);
+	return (CC_REFRESH);
+}
+
+
+/* ed_sequence_lead_in():
+ *	First character in a bound sequence
+ *	Placeholder for external keys
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_sequence_lead_in(EditLine *el __attribute__((__unused__)), 
+		    int c __attribute__((__unused__)))
+{
+
+	return (CC_NORM);
+}
+
+
+/* ed_prev_history():
+ *	Move to the previous history line
+ *	[^P] [k]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_history(EditLine *el, int c __attribute__((__unused__)))
+{
+	char beep = 0;
+	int sv_event = el->el_history.eventno;
+
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';		/* just in case */
+
+	if (el->el_history.eventno == 0) {	/* save the current buffer
+						 * away */
+		(void) strncpy(el->el_history.buf, el->el_line.buffer,
+		    EL_BUFSIZ);
+		el->el_history.last = el->el_history.buf +
+		    (el->el_line.lastchar - el->el_line.buffer);
+	}
+	el->el_history.eventno += el->el_state.argument;
+
+	if (hist_get(el) == CC_ERROR) {
+		if (el->el_map.type == MAP_VI) {
+			el->el_history.eventno = sv_event;
+			return CC_ERROR;
+		}
+		beep = 1;
+		/* el->el_history.eventno was fixed by first call */
+		(void) hist_get(el);
+	}
+	if (beep)
+		return CC_REFRESH_BEEP;
+	return CC_REFRESH;
+}
+
+
+/* ed_next_history():
+ *	Move to the next history line
+ *	[^N] [j]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_history(EditLine *el, int c __attribute__((__unused__)))
+{
+	el_action_t beep = CC_REFRESH, rval;
+
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';	/* just in case */
+
+	el->el_history.eventno -= el->el_state.argument;
+
+	if (el->el_history.eventno < 0) {
+		el->el_history.eventno = 0;
+		beep = CC_REFRESH_BEEP;
+	}
+	rval = hist_get(el);
+	if (rval == CC_REFRESH)
+		return beep;
+	return rval;
+
+}
+
+
+/* ed_search_prev_history():
+ *	Search previous in history for a line matching the current
+ *	next search history [M-P] [K]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_search_prev_history(EditLine *el, int c __attribute__((__unused__)))
+{
+	const char *hp;
+	int h;
+	bool_t found = 0;
+
+	el->el_chared.c_vcmd.action = NOP;
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';	/* just in case */
+	if (el->el_history.eventno < 0) {
+#ifdef DEBUG_EDIT
+		(void) fprintf(el->el_errfile,
+		    "e_prev_search_hist(): eventno < 0;\n");
+#endif
+		el->el_history.eventno = 0;
+		return (CC_ERROR);
+	}
+	if (el->el_history.eventno == 0) {
+		(void) strncpy(el->el_history.buf, el->el_line.buffer,
+		    EL_BUFSIZ);
+		el->el_history.last = el->el_history.buf +
+		    (el->el_line.lastchar - el->el_line.buffer);
+	}
+	if (el->el_history.ref == NULL)
+		return (CC_ERROR);
+
+	hp = HIST_FIRST(el);
+	if (hp == NULL)
+		return (CC_ERROR);
+
+	c_setpat(el);		/* Set search pattern !! */
+
+	for (h = 1; h <= el->el_history.eventno; h++)
+		hp = HIST_NEXT(el);
+
+	while (hp != NULL) {
+#ifdef SDEBUG
+		(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
+#endif
+		if ((strncmp(hp, el->el_line.buffer, (size_t)
+			    (el->el_line.lastchar - el->el_line.buffer)) ||
+			hp[el->el_line.lastchar - el->el_line.buffer]) &&
+		    c_hmatch(el, hp)) {
+			found++;
+			break;
+		}
+		h++;
+		hp = HIST_NEXT(el);
+	}
+
+	if (!found) {
+#ifdef SDEBUG
+		(void) fprintf(el->el_errfile, "not found\n");
+#endif
+		return (CC_ERROR);
+	}
+	el->el_history.eventno = h;
+
+	return (hist_get(el));
+}
+
+
+/* ed_search_next_history():
+ *	Search next in history for a line matching the current
+ *	[M-N] [J]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_search_next_history(EditLine *el, int c __attribute__((__unused__)))
+{
+	const char *hp;
+	int h;
+	bool_t found = 0;
+
+	el->el_chared.c_vcmd.action = NOP;
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';	/* just in case */
+
+	if (el->el_history.eventno == 0)
+		return (CC_ERROR);
+
+	if (el->el_history.ref == NULL)
+		return (CC_ERROR);
+
+	hp = HIST_FIRST(el);
+	if (hp == NULL)
+		return (CC_ERROR);
+
+	c_setpat(el);		/* Set search pattern !! */
+
+	for (h = 1; h < el->el_history.eventno && hp; h++) {
+#ifdef SDEBUG
+		(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
+#endif
+		if ((strncmp(hp, el->el_line.buffer, (size_t)
+			    (el->el_line.lastchar - el->el_line.buffer)) ||
+			hp[el->el_line.lastchar - el->el_line.buffer]) &&
+		    c_hmatch(el, hp))
+			found = h;
+		hp = HIST_NEXT(el);
+	}
+
+	if (!found) {		/* is it the current history number? */
+		if (!c_hmatch(el, el->el_history.buf)) {
+#ifdef SDEBUG
+			(void) fprintf(el->el_errfile, "not found\n");
+#endif
+			return (CC_ERROR);
+		}
+	}
+	el->el_history.eventno = found;
+
+	return (hist_get(el));
+}
+
+
+/* ed_prev_line():
+ *	Move up one line
+ *	Could be [k] [^p]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_line(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *ptr;
+	int nchars = c_hpos(el);
+
+	/*
+         * Move to the line requested
+         */
+	if (*(ptr = el->el_line.cursor) == '\n')
+		ptr--;
+
+	for (; ptr >= el->el_line.buffer; ptr--)
+		if (*ptr == '\n' && --el->el_state.argument <= 0)
+			break;
+
+	if (el->el_state.argument > 0)
+		return (CC_ERROR);
+
+	/*
+         * Move to the beginning of the line
+         */
+	for (ptr--; ptr >= el->el_line.buffer && *ptr != '\n'; ptr--)
+		continue;
+
+	/*
+         * Move to the character requested
+         */
+	for (ptr++;
+	    nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
+	    ptr++)
+		continue;
+
+	el->el_line.cursor = ptr;
+	return (CC_CURSOR);
+}
+
+
+/* ed_next_line():
+ *	Move down one line
+ *	Could be [j] [^n]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_line(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *ptr;
+	int nchars = c_hpos(el);
+
+	/*
+         * Move to the line requested
+         */
+	for (ptr = el->el_line.cursor; ptr < el->el_line.lastchar; ptr++)
+		if (*ptr == '\n' && --el->el_state.argument <= 0)
+			break;
+
+	if (el->el_state.argument > 0)
+		return (CC_ERROR);
+
+	/*
+         * Move to the character requested
+         */
+	for (ptr++;
+	    nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
+	    ptr++)
+		continue;
+
+	el->el_line.cursor = ptr;
+	return (CC_CURSOR);
+}
+
+
+/* ed_command():
+ *	Editline extended command
+ *	[M-X] [:]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_command(EditLine *el, int c __attribute__((__unused__)))
+{
+	char tmpbuf[EL_BUFSIZ];
+	int tmplen;
+
+	tmplen = c_gets(el, tmpbuf, "\n: ");
+	term__putc('\n');
+
+	if (tmplen < 0 || (tmpbuf[tmplen] = 0, parse_line(el, tmpbuf)) == -1)
+		term_beep(el);
+
+	el->el_map.current = el->el_map.key;
+	re_clear_display(el);
+	return CC_REFRESH;
+}
diff --git a/frontend/libedit/common.h b/frontend/libedit/common.h
new file mode 100644
index 0000000..35c61eb
--- /dev/null
+++ b/frontend/libedit/common.h
@@ -0,0 +1,39 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_common_c
+#define _h_common_c
+protected el_action_t	ed_end_of_file (EditLine *, int);
+protected el_action_t	ed_insert (EditLine *, int);
+protected el_action_t	ed_delete_prev_word (EditLine *, int);
+protected el_action_t	ed_delete_next_char (EditLine *, int);
+protected el_action_t	ed_kill_line (EditLine *, int);
+protected el_action_t	ed_move_to_end (EditLine *, int);
+protected el_action_t	ed_move_to_beg (EditLine *, int);
+protected el_action_t	ed_transpose_chars (EditLine *, int);
+protected el_action_t	ed_next_char (EditLine *, int);
+protected el_action_t	ed_prev_word (EditLine *, int);
+protected el_action_t	ed_prev_char (EditLine *, int);
+protected el_action_t	ed_quoted_insert (EditLine *, int);
+protected el_action_t	ed_digit (EditLine *, int);
+protected el_action_t	ed_argument_digit (EditLine *, int);
+protected el_action_t	ed_unassigned (EditLine *, int);
+protected el_action_t	ed_tty_sigint (EditLine *, int);
+protected el_action_t	ed_tty_dsusp (EditLine *, int);
+protected el_action_t	ed_tty_flush_output (EditLine *, int);
+protected el_action_t	ed_tty_sigquit (EditLine *, int);
+protected el_action_t	ed_tty_sigtstp (EditLine *, int);
+protected el_action_t	ed_tty_stop_output (EditLine *, int);
+protected el_action_t	ed_tty_start_output (EditLine *, int);
+protected el_action_t	ed_newline (EditLine *, int);
+protected el_action_t	ed_delete_prev_char (EditLine *, int);
+protected el_action_t	ed_clear_screen (EditLine *, int);
+protected el_action_t	ed_redisplay (EditLine *, int);
+protected el_action_t	ed_start_over (EditLine *, int);
+protected el_action_t	ed_sequence_lead_in (EditLine *, int);
+protected el_action_t	ed_prev_history (EditLine *, int);
+protected el_action_t	ed_next_history (EditLine *, int);
+protected el_action_t	ed_search_prev_history (EditLine *, int);
+protected el_action_t	ed_search_next_history (EditLine *, int);
+protected el_action_t	ed_prev_line (EditLine *, int);
+protected el_action_t	ed_next_line (EditLine *, int);
+protected el_action_t	ed_command (EditLine *, int);
+#endif /* _h_common_c */
diff --git a/frontend/libedit/el.c b/frontend/libedit/el.c
new file mode 100644
index 0000000..32ae4d7
--- /dev/null
+++ b/frontend/libedit/el.c
@@ -0,0 +1,528 @@
+/*	$NetBSD: el.c,v 1.41 2005/08/19 04:21:47 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * el.c: EditLine interface functions
+ */
+#include <sys/types.h>
+#include <sys/param.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include "el.h"
+
+/* el_init():
+ *	Initialize editline and set default parameters.
+ */
+public EditLine *
+el_init(const char *prog, FILE *fin, FILE *fout, FILE *ferr)
+{
+
+	EditLine *el = (EditLine *) el_malloc(sizeof(EditLine));
+
+	if (el == NULL)
+		return (NULL);
+
+	memset(el, 0, sizeof(EditLine));
+
+	el->el_infd = fileno(fin);
+	el->el_outfile = fout;
+	el->el_errfile = ferr;
+	if ((el->el_prog = el_strdup(prog)) == NULL) {
+		el_free(el);
+		return NULL;
+	}
+
+	/*
+         * Initialize all the modules. Order is important!!!
+         */
+	el->el_flags = 0;
+
+	if (term_init(el) == -1) {
+		el_free(el->el_prog);
+		el_free(el);
+		return NULL;
+	}
+	(void) key_init(el);
+	(void) map_init(el);
+	if (tty_init(el) == -1)
+		el->el_flags |= NO_TTY;
+	(void) ch_init(el);
+	(void) search_init(el);
+	(void) hist_init(el);
+	(void) prompt_init(el);
+	(void) sig_init(el);
+	(void) read_init(el);
+
+	return (el);
+}
+
+
+/* el_end():
+ *	Clean up.
+ */
+public void
+el_end(EditLine *el)
+{
+
+	if (el == NULL)
+		return;
+
+	el_reset(el);
+
+	term_end(el);
+	key_end(el);
+	map_end(el);
+	tty_end(el);
+	ch_end(el);
+	search_end(el);
+	hist_end(el);
+	prompt_end(el);
+	sig_end(el);
+
+	el_free((ptr_t) el->el_prog);
+	el_free((ptr_t) el);
+}
+
+
+/* el_reset():
+ *	Reset the tty and the parser
+ */
+public void
+el_reset(EditLine *el)
+{
+
+	tty_cookedmode(el);
+	ch_reset(el, 0);		/* XXX: Do we want that? */
+}
+
+
+/* el_set():
+ *	set the editline parameters
+ */
+public int
+el_set(EditLine *el, int op, ...)
+{
+	va_list va;
+	int rv = 0;
+
+	if (el == NULL)
+		return (-1);
+	va_start(va, op);
+
+	switch (op) {
+	case EL_PROMPT:
+	case EL_RPROMPT:
+		rv = prompt_set(el, va_arg(va, el_pfunc_t), op);
+		break;
+
+	case EL_TERMINAL:
+		rv = term_set(el, va_arg(va, char *));
+		break;
+
+	case EL_EDITOR:
+		rv = map_set_editor(el, va_arg(va, char *));
+		break;
+
+	case EL_SIGNAL:
+		if (va_arg(va, int))
+			el->el_flags |= HANDLE_SIGNALS;
+		else
+			el->el_flags &= ~HANDLE_SIGNALS;
+		break;
+
+	case EL_BIND:
+	case EL_TELLTC:
+	case EL_SETTC:
+	case EL_ECHOTC:
+	case EL_SETTY:
+	{
+		const char *argv[20];
+		int i;
+
+		for (i = 1; i < 20; i++)
+			if ((argv[i] = va_arg(va, char *)) == NULL)
+				break;
+
+		switch (op) {
+		case EL_BIND:
+			argv[0] = "bind";
+			rv = map_bind(el, i, argv);
+			break;
+
+		case EL_TELLTC:
+			argv[0] = "telltc";
+			rv = term_telltc(el, i, argv);
+			break;
+
+		case EL_SETTC:
+			argv[0] = "settc";
+			rv = term_settc(el, i, argv);
+			break;
+
+		case EL_ECHOTC:
+			argv[0] = "echotc";
+			rv = term_echotc(el, i, argv);
+			break;
+
+		case EL_SETTY:
+			argv[0] = "setty";
+			rv = tty_stty(el, i, argv);
+			break;
+
+		default:
+			rv = -1;
+			EL_ABORT((el->el_errfile, "Bad op %d\n", op));
+			break;
+		}
+		break;
+	}
+
+	case EL_ADDFN:
+	{
+		char *name = va_arg(va, char *);
+		char *help = va_arg(va, char *);
+		el_func_t func = va_arg(va, el_func_t);
+
+		rv = map_addfunc(el, name, help, func);
+		break;
+	}
+
+	case EL_HIST:
+	{
+		hist_fun_t func = va_arg(va, hist_fun_t);
+		ptr_t ptr = va_arg(va, char *);
+
+		rv = hist_set(el, func, ptr);
+		break;
+	}
+
+	case EL_EDITMODE:
+		if (va_arg(va, int))
+			el->el_flags &= ~EDIT_DISABLED;
+		else
+			el->el_flags |= EDIT_DISABLED;
+		rv = 0;
+		break;
+
+	case EL_GETCFN:
+	{
+		el_rfunc_t rc = va_arg(va, el_rfunc_t);
+		rv = el_read_setfn(el, rc);
+		break;
+	}
+
+	case EL_CLIENTDATA:
+		el->el_data = va_arg(va, void *);
+		break;
+
+	case EL_UNBUFFERED:
+		rv = va_arg(va, int);
+		if (rv && !(el->el_flags & UNBUFFERED)) {
+			el->el_flags |= UNBUFFERED;
+			read_prepare(el);
+		} else if (!rv && (el->el_flags & UNBUFFERED)) {
+			el->el_flags &= ~UNBUFFERED;
+			read_finish(el);
+		}
+		rv = 0;
+		break;
+
+	case EL_PREP_TERM:
+		rv = va_arg(va, int);
+		if (rv)
+			(void) tty_rawmode(el);
+		else
+			(void) tty_cookedmode(el);
+		rv = 0;
+		break;
+
+	default:
+		rv = -1;
+		break;
+	}
+
+	va_end(va);
+	return (rv);
+}
+
+
+/* el_get():
+ *	retrieve the editline parameters
+ */
+public int
+el_get(EditLine *el, int op, void *ret)
+{
+	int rv;
+
+	if (el == NULL || ret == NULL)
+		return (-1);
+	switch (op) {
+	case EL_PROMPT:
+	case EL_RPROMPT:
+		rv = prompt_get(el, (el_pfunc_t *) ret, op);
+		break;
+
+	case EL_EDITOR:
+		rv = map_get_editor(el, (const char **)ret);
+		break;
+
+	case EL_SIGNAL:
+		*((int *) ret) = (el->el_flags & HANDLE_SIGNALS);
+		rv = 0;
+		break;
+
+	case EL_EDITMODE:
+		*((int *) ret) = (!(el->el_flags & EDIT_DISABLED));
+		rv = 0;
+		break;
+
+	case EL_TERMINAL:
+		term_get(el, (const char **)ret);
+		rv = 0;
+		break;
+
+#if 0				/* XXX */
+	case EL_BIND:
+	case EL_TELLTC:
+	case EL_SETTC:
+	case EL_ECHOTC:
+	case EL_SETTY:
+	{
+		const char *argv[20];
+		int i;
+
+ 		for (i = 1; i < sizeof(argv) / sizeof(argv[0]); i++)
+			if ((argv[i] = va_arg(va, char *)) == NULL)
+				break;
+
+		switch (op) {
+		case EL_BIND:
+			argv[0] = "bind";
+			rv = map_bind(el, i, argv);
+			break;
+
+		case EL_TELLTC:
+			argv[0] = "telltc";
+			rv = term_telltc(el, i, argv);
+			break;
+
+		case EL_SETTC:
+			argv[0] = "settc";
+			rv = term_settc(el, i, argv);
+			break;
+
+		case EL_ECHOTC:
+			argv[0] = "echotc";
+			rv = term_echotc(el, i, argv);
+			break;
+
+		case EL_SETTY:
+			argv[0] = "setty";
+			rv = tty_stty(el, i, argv);
+			break;
+
+		default:
+			rv = -1;
+			EL_ABORT((el->errfile, "Bad op %d\n", op));
+			break;
+		}
+		break;
+	}
+
+	case EL_ADDFN:
+	{
+		char *name = va_arg(va, char *);
+		char *help = va_arg(va, char *);
+		el_func_t func = va_arg(va, el_func_t);
+
+		rv = map_addfunc(el, name, help, func);
+		break;
+	}
+
+	case EL_HIST:
+		{
+			hist_fun_t func = va_arg(va, hist_fun_t);
+			ptr_t ptr = va_arg(va, char *);
+			rv = hist_set(el, func, ptr);
+		}
+		break;
+#endif /* XXX */
+
+	case EL_GETCFN:
+		*((el_rfunc_t *)ret) = el_read_getfn(el);
+		rv = 0;
+		break;
+
+	case EL_CLIENTDATA:
+		*((void **)ret) = el->el_data;
+		rv = 0;
+		break;
+
+	case EL_UNBUFFERED:
+		*((int *) ret) = (!(el->el_flags & UNBUFFERED));
+		rv = 0;
+		break;
+
+	default:
+		rv = -1;
+	}
+
+	return (rv);
+}
+
+
+/* el_line():
+ *	Return editing info
+ */
+public const LineInfo *
+el_line(EditLine *el)
+{
+
+	return (const LineInfo *) (void *) &el->el_line;
+}
+
+
+/* el_source():
+ *	Source a file
+ */
+public int
+el_source(EditLine *el, const char *fname)
+{
+	FILE *fp;
+	size_t len;
+	char *ptr;
+
+	fp = NULL;
+	if (fname == NULL) {
+		static const char elpath[] = "/.editrc";
+#ifdef MAXPATHLEN
+		char path[MAXPATHLEN];
+#else
+		char path[4096];
+#endif
+
+#ifdef HAVE_ISSETUGID
+		if (issetugid())
+			return (-1);
+#endif
+		if ((ptr = getenv("HOME")) == NULL)
+			return (-1);
+		if (strlcpy(path, ptr, sizeof(path)) >= sizeof(path))
+			return (-1);
+		if (strlcat(path, elpath, sizeof(path)) >= sizeof(path))
+			return (-1);
+		fname = path;
+	}
+	if (fp == NULL)
+		fp = fopen(fname, "r");
+	if (fp == NULL)
+		return (-1);
+
+	while ((ptr = fgetln(fp, &len)) != NULL) {
+		if (len > 0 && ptr[len - 1] == '\n')
+			--len;
+		ptr[len] = '\0';
+		if (parse_line(el, ptr) == -1) {
+			(void) fclose(fp);
+			return (-1);
+		}
+	}
+
+	(void) fclose(fp);
+	return (0);
+}
+
+
+/* el_resize():
+ *	Called from program when terminal is resized
+ */
+public void
+el_resize(EditLine *el)
+{
+	int lins, cols;
+	sigset_t oset, nset;
+
+	(void) sigemptyset(&nset);
+	(void) sigaddset(&nset, SIGWINCH);
+	(void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+	/* get the correct window size */
+	if (term_get_size(el, &lins, &cols))
+		term_change_size(el, lins, cols);
+
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
+
+
+/* el_beep():
+ *	Called from the program to beep
+ */
+public void
+el_beep(EditLine *el)
+{
+
+	term_beep(el);
+}
+
+
+/* el_editmode()
+ *	Set the state of EDIT_DISABLED from the `edit' command.
+ */
+protected int
+/*ARGSUSED*/
+el_editmode(EditLine *el, int argc, const char **argv)
+{
+	const char *how;
+
+	if (argv == NULL || argc != 2 || argv[1] == NULL)
+		return (-1);
+
+	how = argv[1];
+	if (strcmp(how, "on") == 0) {
+		el->el_flags &= ~EDIT_DISABLED;
+		tty_rawmode(el);
+	} else if (strcmp(how, "off") == 0) {
+		tty_cookedmode(el);
+		el->el_flags |= EDIT_DISABLED;
+	}
+	else {
+		(void) fprintf(el->el_errfile, "edit: Bad value `%s'.\n", how);
+		return (-1);
+	}
+	return (0);
+}
diff --git a/frontend/libedit/el.h b/frontend/libedit/el.h
new file mode 100644
index 0000000..c4b6cff
--- /dev/null
+++ b/frontend/libedit/el.h
@@ -0,0 +1,149 @@
+/*	$NetBSD: el.h,v 1.16 2003/10/18 23:48:42 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)el.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.h: Internal structures.
+ */
+#ifndef _h_el
+#define	_h_el
+/*
+ * Local defaults
+ */
+#define	KSHVI
+#define	VIDEFAULT
+#define	ANCHOR
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#define	EL_BUFSIZ	1024		/* Maximum line size		*/
+
+#define	HANDLE_SIGNALS	0x01
+#define	NO_TTY		0x02
+#define	EDIT_DISABLED	0x04
+#define	UNBUFFERED	0x08
+
+typedef int bool_t;			/* True or not			*/
+
+typedef unsigned char el_action_t;	/* Index to command array	*/
+
+typedef struct coord_t {		/* Position on the screen	*/
+	int	h;
+	int	v;
+} coord_t;
+
+typedef struct el_line_t {
+	char	*buffer;		/* Input line			*/
+	char	*cursor;		/* Cursor position		*/
+	char	*lastchar;		/* Last character		*/
+	const char	*limit;		/* Max position			*/
+} el_line_t;
+
+/*
+ * Editor state
+ */
+typedef struct el_state_t {
+	int		inputmode;	/* What mode are we in?		*/
+	int		doingarg;	/* Are we getting an argument?	*/
+	int		argument;	/* Numeric argument		*/
+	int		metanext;	/* Is the next char a meta char */
+	el_action_t	lastcmd;	/* Previous command		*/
+	el_action_t	thiscmd;	/* this command 		*/
+	char		thisch;		/* char that generated it	*/
+} el_state_t;
+
+/*
+ * Until we come up with something better...
+ */
+#define	el_strdup(a)	strdup(a)
+#define	el_malloc(a)	malloc(a)
+#define	el_realloc(a,b)	realloc(a, b)
+#define	el_free(a)	free(a)
+
+#include "tty.h"
+#include "prompt.h"
+#include "key.h"
+#include "el_term.h"
+#include "refresh.h"
+#include "chared.h"
+#include "common.h"
+#include "search.h"
+#include "hist.h"
+#include "map.h"
+#include "parse.h"
+#include "sig.h"
+#include "help.h"
+#include "read.h"
+
+struct editline {
+	char		 *el_prog;	/* the program name		*/
+	FILE		 *el_outfile;	/* Stdio stuff			*/
+	FILE		 *el_errfile;	/* Stdio stuff			*/
+	int		  el_infd;	/* Input file descriptor	*/
+	int		  el_flags;	/* Various flags.		*/
+	coord_t		  el_cursor;	/* Cursor location		*/
+	char		**el_display;	/* Real screen image = what is there */
+	char		**el_vdisplay;	/* Virtual screen image = what we see */
+	void		 *el_data;	/* Client data			*/
+	el_line_t	  el_line;	/* The current line information	*/
+	el_state_t	  el_state;	/* Current editor state		*/
+	el_term_t	  el_term;	/* Terminal dependent stuff	*/
+	el_tty_t	  el_tty;	/* Tty dependent stuff		*/
+	el_refresh_t	  el_refresh;	/* Refresh stuff		*/
+	el_prompt_t	  el_prompt;	/* Prompt stuff			*/
+	el_prompt_t	  el_rprompt;	/* Prompt stuff			*/
+	el_chared_t	  el_chared;	/* Characted editor stuff	*/
+	el_map_t	  el_map;	/* Key mapping stuff		*/
+	el_key_t	  el_key;	/* Key binding stuff		*/
+	el_history_t	  el_history;	/* History stuff		*/
+	el_search_t	  el_search;	/* Search stuff			*/
+	el_signal_t	  el_signal;	/* Signal handling stuff	*/
+	el_read_t	  el_read;	/* Character reading stuff	*/
+};
+
+protected int	el_editmode(EditLine *, int, const char **);
+
+#ifdef DEBUG
+#define	EL_ABORT(a)	do { \
+				fprintf(el->el_errfile, "%s, %d: ", \
+					 __FILE__, __LINE__); \
+				fprintf a; \
+				abort(); \
+			} while( /*CONSTCOND*/0);
+#else
+#define EL_ABORT(a)	abort()
+#endif
+#endif /* _h_el */
diff --git a/frontend/libedit/el_term.h b/frontend/libedit/el_term.h
new file mode 100644
index 0000000..fb51363
--- /dev/null
+++ b/frontend/libedit/el_term.h
@@ -0,0 +1,133 @@
+/*	$NetBSD: term.h,v 1.17 2006/03/06 21:11:56 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)term.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.term.h: Termcap header
+ */
+#ifndef _h_el_term
+#define	_h_el_term
+
+#include "histedit.h"
+
+typedef struct {		/* Symbolic function key bindings	*/
+	const char	*name;	/* name of the key			*/
+	int		 key;	/* Index in termcap table		*/
+	key_value_t	 fun;	/* Function bound to it			*/
+	int		 type;	/* Type of function			*/
+} fkey_t;
+
+typedef struct {
+	const char *t_name;		/* the terminal name	*/
+	coord_t	  t_size;		/* # lines and cols	*/
+	int	  t_flags;
+#define	TERM_CAN_INSERT		0x001	/* Has insert cap	*/
+#define	TERM_CAN_DELETE		0x002	/* Has delete cap	*/
+#define	TERM_CAN_CEOL		0x004	/* Has CEOL cap		*/
+#define	TERM_CAN_TAB		0x008	/* Can use tabs		*/
+#define	TERM_CAN_ME		0x010	/* Can turn all attrs.	*/
+#define	TERM_CAN_UP		0x020	/* Can move up		*/
+#define	TERM_HAS_META		0x040	/* Has a meta key	*/
+#define	TERM_HAS_AUTO_MARGINS	0x080	/* Has auto margins	*/
+#define	TERM_HAS_MAGIC_MARGINS	0x100	/* Has magic margins	*/
+	char	 *t_buf;		/* Termcap buffer	*/
+	int	  t_loc;		/* location used	*/
+	char	**t_str;		/* termcap strings	*/
+	int	 *t_val;		/* termcap values	*/
+	char	 *t_cap;		/* Termcap buffer	*/
+	fkey_t	 *t_fkey;		/* Array of keys	*/
+} el_term_t;
+
+/*
+ * fKey indexes
+ */
+#define	A_K_DN		0
+#define	A_K_UP		1
+#define	A_K_LT		2
+#define	A_K_RT		3
+#define	A_K_HO		4
+#define	A_K_EN		5
+#define	A_K_NKEYS	6
+
+#ifdef _SUNOS
+extern int tgetent(char *, const char *);
+extern int tgetflag(char *);
+extern int tgetnum(char *);
+extern int tputs(const char *, int, int (*)(int));
+extern char* tgoto(const char*, int, int);
+extern char* tgetstr(char*, char**);
+#endif
+
+protected void	term_move_to_line(EditLine *, int);
+protected void	term_move_to_char(EditLine *, int);
+protected void	term_clear_EOL(EditLine *, int);
+protected void	term_overwrite(EditLine *, const char *, int);
+protected void	term_insertwrite(EditLine *, char *, int);
+protected void	term_deletechars(EditLine *, int);
+protected void	term_clear_screen(EditLine *);
+protected void	term_beep(EditLine *);
+protected int	term_change_size(EditLine *, int, int);
+protected int	term_get_size(EditLine *, int *, int *);
+protected int	term_init(EditLine *);
+protected void	term_bind_arrow(EditLine *);
+protected void	term_print_arrow(EditLine *, const char *);
+protected int	term_clear_arrow(EditLine *, const char *);
+protected int	term_set_arrow(EditLine *, const char *, key_value_t *, int);
+protected void	term_end(EditLine *);
+protected void	term_get(EditLine *, const char **);
+protected int	term_set(EditLine *, const char *);
+protected int	term_settc(EditLine *, int, const char **);
+protected int	term_telltc(EditLine *, int, const char **);
+protected int	term_echotc(EditLine *, int, const char **);
+protected void	term_writec(EditLine *, int);
+protected int	term__putc(int);
+protected void	term__flush(void);
+
+/*
+ * Easy access macros
+ */
+#define	EL_FLAGS	(el)->el_term.t_flags
+
+#define	EL_CAN_INSERT		(EL_FLAGS & TERM_CAN_INSERT)
+#define	EL_CAN_DELETE		(EL_FLAGS & TERM_CAN_DELETE)
+#define	EL_CAN_CEOL		(EL_FLAGS & TERM_CAN_CEOL)
+#define	EL_CAN_TAB		(EL_FLAGS & TERM_CAN_TAB)
+#define	EL_CAN_ME		(EL_FLAGS & TERM_CAN_ME)
+#define EL_CAN_UP		(EL_FLAGS & TERM_CAN_UP)
+#define	EL_HAS_META		(EL_FLAGS & TERM_HAS_META)
+#define	EL_HAS_AUTO_MARGINS	(EL_FLAGS & TERM_HAS_AUTO_MARGINS)
+#define	EL_HAS_MAGIC_MARGINS	(EL_FLAGS & TERM_HAS_MAGIC_MARGINS)
+
+#endif /* _h_el_term */
diff --git a/frontend/libedit/emacs.c b/frontend/libedit/emacs.c
new file mode 100644
index 0000000..81711d3
--- /dev/null
+++ b/frontend/libedit/emacs.c
@@ -0,0 +1,501 @@
+/*	$NetBSD: emacs.c,v 1.21 2006/03/06 21:11:56 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * emacs.c: Emacs functions
+ */
+#include "el.h"
+
+/* em_delete_or_list():
+ *	Delete character under cursor or list completions if at end of line
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_or_list(EditLine *el, int c)
+{
+
+	if (el->el_line.cursor == el->el_line.lastchar) {
+					/* if I'm at the end */
+		if (el->el_line.cursor == el->el_line.buffer) {
+					/* and the beginning */
+			term_writec(el, c);	/* then do an EOF */
+			return (CC_EOF);
+		} else {
+			/*
+			 * Here we could list completions, but it is an
+			 * error right now
+			 */
+			term_beep(el);
+			return (CC_ERROR);
+		}
+	} else {
+		if (el->el_state.doingarg)
+			c_delafter(el, el->el_state.argument);
+		else
+			c_delafter1(el);
+		if (el->el_line.cursor > el->el_line.lastchar)
+			el->el_line.cursor = el->el_line.lastchar;
+				/* bounds check */
+		return (CC_REFRESH);
+	}
+}
+
+
+/* em_delete_next_word():
+ *	Cut from cursor to end of current word
+ *	[M-d]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_next_word(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *cp, *p, *kp;
+
+	if (el->el_line.cursor == el->el_line.lastchar)
+		return (CC_ERROR);
+
+	cp = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (p = el->el_line.cursor, kp = el->el_chared.c_kill.buf; p < cp; p++)
+				/* save the text */
+		*kp++ = *p;
+	el->el_chared.c_kill.last = kp;
+
+	c_delafter(el, cp - el->el_line.cursor);	/* delete after dot */
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+				/* bounds check */
+	return (CC_REFRESH);
+}
+
+
+/* em_yank():
+ *	Paste cut buffer at cursor position
+ *	[^Y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_yank(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *kp, *cp;
+
+	if (el->el_chared.c_kill.last == el->el_chared.c_kill.buf)
+		return (CC_NORM);
+
+	if (el->el_line.lastchar +
+	    (el->el_chared.c_kill.last - el->el_chared.c_kill.buf) >=
+	    el->el_line.limit)
+		return (CC_ERROR);
+
+	el->el_chared.c_kill.mark = el->el_line.cursor;
+	cp = el->el_line.cursor;
+
+	/* open the space, */
+	c_insert(el, el->el_chared.c_kill.last - el->el_chared.c_kill.buf);
+	/* copy the chars */
+	for (kp = el->el_chared.c_kill.buf; kp < el->el_chared.c_kill.last; kp++)
+		*cp++ = *kp;
+
+	/* if an arg, cursor at beginning else cursor at end */
+	if (el->el_state.argument == 1)
+		el->el_line.cursor = cp;
+
+	return (CC_REFRESH);
+}
+
+
+/* em_kill_line():
+ *	Cut the entire line and save in cut buffer
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_kill_line(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *kp, *cp;
+
+	cp = el->el_line.buffer;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_line.lastchar)
+		*kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+				/* zap! -- delete all of it */
+	el->el_line.lastchar = el->el_line.buffer;
+	el->el_line.cursor = el->el_line.buffer;
+	return (CC_REFRESH);
+}
+
+
+/* em_kill_region():
+ *	Cut area between mark and cursor and save in cut buffer
+ *	[^W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_kill_region(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *kp, *cp;
+
+	if (!el->el_chared.c_kill.mark)
+		return (CC_ERROR);
+
+	if (el->el_chared.c_kill.mark > el->el_line.cursor) {
+		cp = el->el_line.cursor;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_chared.c_kill.mark)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+		c_delafter(el, cp - el->el_line.cursor);
+	} else {		/* mark is before cursor */
+		cp = el->el_chared.c_kill.mark;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_line.cursor)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+		c_delbefore(el, cp - el->el_chared.c_kill.mark);
+		el->el_line.cursor = el->el_chared.c_kill.mark;
+	}
+	return (CC_REFRESH);
+}
+
+
+/* em_copy_region():
+ *	Copy area between mark and cursor to cut buffer
+ *	[M-W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_copy_region(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *kp, *cp;
+
+	if (!el->el_chared.c_kill.mark)
+		return (CC_ERROR);
+
+	if (el->el_chared.c_kill.mark > el->el_line.cursor) {
+		cp = el->el_line.cursor;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_chared.c_kill.mark)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+	} else {
+		cp = el->el_chared.c_kill.mark;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_line.cursor)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+	}
+	return (CC_NORM);
+}
+
+
+/* em_gosmacs_transpose():
+ *	Exchange the two characters before the cursor
+ *	Gosling emacs transpose chars [^T]
+ */
+protected el_action_t
+em_gosmacs_transpose(EditLine *el, int c)
+{
+
+	if (el->el_line.cursor > &el->el_line.buffer[1]) {
+		/* must have at least two chars entered */
+		c = el->el_line.cursor[-2];
+		el->el_line.cursor[-2] = el->el_line.cursor[-1];
+		el->el_line.cursor[-1] = c;
+		return (CC_REFRESH);
+	} else
+		return (CC_ERROR);
+}
+
+
+/* em_next_word():
+ *	Move next to end of current word
+ *	[M-f]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_next_word(EditLine *el, int c __attribute__((__unused__)))
+{
+	if (el->el_line.cursor == el->el_line.lastchar)
+		return (CC_ERROR);
+
+	el->el_line.cursor = c__next_word(el->el_line.cursor,
+	    el->el_line.lastchar,
+	    el->el_state.argument,
+	    ce__isword);
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return (CC_REFRESH);
+		}
+	return (CC_CURSOR);
+}
+
+
+/* em_upper_case():
+ *	Uppercase the characters from cursor to end of current word
+ *	[M-u]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_upper_case(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *cp, *ep;
+
+	ep = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (cp = el->el_line.cursor; cp < ep; cp++)
+		if (islower((unsigned char)*cp))
+			*cp = toupper((unsigned char)*cp);
+
+	el->el_line.cursor = ep;
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+	return (CC_REFRESH);
+}
+
+
+/* em_capitol_case():
+ *	Capitalize the characters from cursor to end of current word
+ *	[M-c]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_capitol_case(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *cp, *ep;
+
+	ep = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (cp = el->el_line.cursor; cp < ep; cp++) {
+		if (isalpha((unsigned char)*cp)) {
+			if (islower((unsigned char)*cp))
+				*cp = toupper((unsigned char)*cp);
+			cp++;
+			break;
+		}
+	}
+	for (; cp < ep; cp++)
+		if (isupper((unsigned char)*cp))
+			*cp = tolower((unsigned char)*cp);
+
+	el->el_line.cursor = ep;
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+	return (CC_REFRESH);
+}
+
+
+/* em_lower_case():
+ *	Lowercase the characters from cursor to end of current word
+ *	[M-l]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_lower_case(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *cp, *ep;
+
+	ep = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (cp = el->el_line.cursor; cp < ep; cp++)
+		if (isupper((unsigned char)*cp))
+			*cp = tolower((unsigned char)*cp);
+
+	el->el_line.cursor = ep;
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+	return (CC_REFRESH);
+}
+
+
+/* em_set_mark():
+ *	Set the mark at cursor
+ *	[^@]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_set_mark(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_chared.c_kill.mark = el->el_line.cursor;
+	return (CC_NORM);
+}
+
+
+/* em_exchange_mark():
+ *	Exchange the cursor and mark
+ *	[^X^X]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_exchange_mark(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *cp;
+
+	cp = el->el_line.cursor;
+	el->el_line.cursor = el->el_chared.c_kill.mark;
+	el->el_chared.c_kill.mark = cp;
+	return (CC_CURSOR);
+}
+
+
+/* em_universal_argument():
+ *	Universal argument (argument times 4)
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_universal_argument(EditLine *el, int c __attribute__((__unused__)))
+{				/* multiply current argument by 4 */
+
+	if (el->el_state.argument > 1000000)
+		return (CC_ERROR);
+	el->el_state.doingarg = 1;
+	el->el_state.argument *= 4;
+	return (CC_ARGHACK);
+}
+
+
+/* em_meta_next():
+ *	Add 8th bit to next character typed
+ *	[<ESC>]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_meta_next(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_state.metanext = 1;
+	return (CC_ARGHACK);
+}
+
+
+/* em_toggle_overwrite():
+ *	Switch from insert to overwrite mode or vice versa
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_toggle_overwrite(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_state.inputmode = (el->el_state.inputmode == MODE_INSERT) ?
+	    MODE_REPLACE : MODE_INSERT;
+	return (CC_NORM);
+}
+
+
+/* em_copy_prev_word():
+ *	Copy current word to cursor
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_copy_prev_word(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *cp, *oldc, *dp;
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return (CC_ERROR);
+
+	oldc = el->el_line.cursor;
+	/* does a bounds check */
+	cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
+	    el->el_state.argument, ce__isword);
+
+	c_insert(el, oldc - cp);
+	for (dp = oldc; cp < oldc && dp < el->el_line.lastchar; cp++)
+		*dp++ = *cp;
+
+	el->el_line.cursor = dp;/* put cursor at end */
+
+	return (CC_REFRESH);
+}
+
+
+/* em_inc_search_next():
+ *	Emacs incremental next search
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_inc_search_next(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_search.patlen = 0;
+	return (ce_inc_search(el, ED_SEARCH_NEXT_HISTORY));
+}
+
+
+/* em_inc_search_prev():
+ *	Emacs incremental reverse search
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_inc_search_prev(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_search.patlen = 0;
+	return (ce_inc_search(el, ED_SEARCH_PREV_HISTORY));
+}
+
+
+/* em_delete_prev_char():
+ *	Delete the character to the left of the cursor
+ *	[^?]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_prev_char(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor <= el->el_line.buffer)
+		return (CC_ERROR);
+
+	if (el->el_state.doingarg)
+		c_delbefore(el, el->el_state.argument);
+	else
+		c_delbefore1(el);
+	el->el_line.cursor -= el->el_state.argument;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer;
+	return (CC_REFRESH);
+}
diff --git a/frontend/libedit/emacs.h b/frontend/libedit/emacs.h
new file mode 100644
index 0000000..764f60f
--- /dev/null
+++ b/frontend/libedit/emacs.h
@@ -0,0 +1,23 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_emacs_c
+#define _h_emacs_c
+protected el_action_t	em_delete_or_list (EditLine *, int);
+protected el_action_t	em_delete_next_word (EditLine *, int);
+protected el_action_t	em_yank (EditLine *, int);
+protected el_action_t	em_kill_line (EditLine *, int);
+protected el_action_t	em_kill_region (EditLine *, int);
+protected el_action_t	em_copy_region (EditLine *, int);
+protected el_action_t	em_gosmacs_transpose (EditLine *, int);
+protected el_action_t	em_next_word (EditLine *, int);
+protected el_action_t	em_upper_case (EditLine *, int);
+protected el_action_t	em_capitol_case (EditLine *, int);
+protected el_action_t	em_lower_case (EditLine *, int);
+protected el_action_t	em_set_mark (EditLine *, int);
+protected el_action_t	em_exchange_mark (EditLine *, int);
+protected el_action_t	em_universal_argument (EditLine *, int);
+protected el_action_t	em_meta_next (EditLine *, int);
+protected el_action_t	em_toggle_overwrite (EditLine *, int);
+protected el_action_t	em_copy_prev_word (EditLine *, int);
+protected el_action_t	em_inc_search_next (EditLine *, int);
+protected el_action_t	em_inc_search_prev (EditLine *, int);
+#endif /* _h_emacs_c */
diff --git a/frontend/libedit/fcns.c b/frontend/libedit/fcns.c
new file mode 100644
index 0000000..8d9a531
--- /dev/null
+++ b/frontend/libedit/fcns.c
@@ -0,0 +1,58 @@
+/* Automatically generated file, do not edit */
+#include "sys.h"
+#include "el.h"
+private const el_func_t el_func[] = {
+    ed_argument_digit,         ed_clear_screen,           
+    ed_command,                ed_delete_next_char,       
+    ed_delete_prev_char,       ed_delete_prev_word,       
+    ed_digit,                  ed_end_of_file,            
+    ed_insert,                 ed_kill_line,              
+    ed_move_to_beg,            ed_move_to_end,            
+    ed_newline,                ed_next_char,              
+    ed_next_history,           ed_next_line,              
+    ed_prev_char,              ed_prev_history,           
+    ed_prev_line,              ed_prev_word,              
+    ed_quoted_insert,          ed_redisplay,              
+    ed_search_next_history,    ed_search_prev_history,    
+    ed_sequence_lead_in,       ed_start_over,             
+    ed_transpose_chars,        ed_tty_dsusp,              
+    ed_tty_flush_output,       ed_tty_sigint,             
+    ed_tty_sigquit,            ed_tty_sigtstp,            
+    ed_tty_start_output,       ed_tty_stop_output,        
+    ed_unassigned,             em_capitol_case,           
+    em_copy_prev_word,         em_copy_region,            
+    em_delete_next_word,       em_delete_or_list,         
+    em_exchange_mark,          em_gosmacs_transpose,      
+    em_inc_search_next,        em_inc_search_prev,        
+    em_kill_line,              em_kill_region,            
+    em_lower_case,             em_meta_next,              
+    em_next_word,              em_set_mark,               
+    em_toggle_overwrite,       em_universal_argument,     
+    em_upper_case,             em_yank,                   
+    vi_add,                    vi_add_at_eol,             
+    vi_alias,                  vi_change_case,            
+    vi_change_meta,            vi_change_to_eol,          
+    vi_command_mode,           vi_comment_out,            
+    vi_delete_meta,            vi_delete_prev_char,       
+    vi_end_big_word,           vi_end_word,               
+    vi_histedit,               vi_history_word,           
+    vi_insert,                 vi_insert_at_bol,          
+    vi_kill_line_prev,         vi_list_or_eof,            
+    vi_match,                  vi_next_big_word,          
+    vi_next_char,              vi_next_word,              
+    vi_paste_next,             vi_paste_prev,             
+    vi_prev_big_word,          vi_prev_char,              
+    vi_prev_word,              vi_redo,                   
+    vi_repeat_next_char,       vi_repeat_prev_char,       
+    vi_repeat_search_next,     vi_repeat_search_prev,     
+    vi_replace_char,           vi_replace_mode,           
+    vi_search_next,            vi_search_prev,            
+    vi_substitute_char,        vi_substitute_line,        
+    vi_to_column,              vi_to_history_line,        
+    vi_to_next_char,           vi_to_prev_char,           
+    vi_undo,                   vi_undo_line,              
+    vi_yank,                   vi_yank_end,               
+    vi_zero,                   
+};
+
+protected const el_func_t* func__get() { return el_func; }
diff --git a/frontend/libedit/fcns.h b/frontend/libedit/fcns.h
new file mode 100644
index 0000000..99ae88c
--- /dev/null
+++ b/frontend/libedit/fcns.h
@@ -0,0 +1,108 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_fcns_c
+#define _h_fcns_c
+#define	ED_ARGUMENT_DIGIT             	  0
+#define	ED_CLEAR_SCREEN               	  1
+#define	ED_COMMAND                    	  2
+#define	ED_DELETE_NEXT_CHAR           	  3
+#define	ED_DELETE_PREV_CHAR           	  4
+#define	ED_DELETE_PREV_WORD           	  5
+#define	ED_DIGIT                      	  6
+#define	ED_END_OF_FILE                	  7
+#define	ED_INSERT                     	  8
+#define	ED_KILL_LINE                  	  9
+#define	ED_MOVE_TO_BEG                	 10
+#define	ED_MOVE_TO_END                	 11
+#define	ED_NEWLINE                    	 12
+#define	ED_NEXT_CHAR                  	 13
+#define	ED_NEXT_HISTORY               	 14
+#define	ED_NEXT_LINE                  	 15
+#define	ED_PREV_CHAR                  	 16
+#define	ED_PREV_HISTORY               	 17
+#define	ED_PREV_LINE                  	 18
+#define	ED_PREV_WORD                  	 19
+#define	ED_QUOTED_INSERT              	 20
+#define	ED_REDISPLAY                  	 21
+#define	ED_SEARCH_NEXT_HISTORY        	 22
+#define	ED_SEARCH_PREV_HISTORY        	 23
+#define	ED_SEQUENCE_LEAD_IN           	 24
+#define	ED_START_OVER                 	 25
+#define	ED_TRANSPOSE_CHARS            	 26
+#define	ED_TTY_DSUSP                  	 27
+#define	ED_TTY_FLUSH_OUTPUT           	 28
+#define	ED_TTY_SIGINT                 	 29
+#define	ED_TTY_SIGQUIT                	 30
+#define	ED_TTY_SIGTSTP                	 31
+#define	ED_TTY_START_OUTPUT           	 32
+#define	ED_TTY_STOP_OUTPUT            	 33
+#define	ED_UNASSIGNED                 	 34
+#define	EM_CAPITOL_CASE               	 35
+#define	EM_COPY_PREV_WORD             	 36
+#define	EM_COPY_REGION                	 37
+#define	EM_DELETE_NEXT_WORD           	 38
+#define	EM_DELETE_OR_LIST             	 39
+#define	EM_EXCHANGE_MARK              	 40
+#define	EM_GOSMACS_TRANSPOSE          	 41
+#define	EM_INC_SEARCH_NEXT            	 42
+#define	EM_INC_SEARCH_PREV            	 43
+#define	EM_KILL_LINE                  	 44
+#define	EM_KILL_REGION                	 45
+#define	EM_LOWER_CASE                 	 46
+#define	EM_META_NEXT                  	 47
+#define	EM_NEXT_WORD                  	 48
+#define	EM_SET_MARK                   	 49
+#define	EM_TOGGLE_OVERWRITE           	 50
+#define	EM_UNIVERSAL_ARGUMENT         	 51
+#define	EM_UPPER_CASE                 	 52
+#define	EM_YANK                       	 53
+#define	VI_ADD                        	 54
+#define	VI_ADD_AT_EOL                 	 55
+#define	VI_ALIAS                      	 56
+#define	VI_CHANGE_CASE                	 57
+#define	VI_CHANGE_META                	 58
+#define	VI_CHANGE_TO_EOL              	 59
+#define	VI_COMMAND_MODE               	 60
+#define	VI_COMMENT_OUT                	 61
+#define	VI_DELETE_META                	 62
+#define	VI_DELETE_PREV_CHAR           	 63
+#define	VI_END_BIG_WORD               	 64
+#define	VI_END_WORD                   	 65
+#define	VI_HISTEDIT                   	 66
+#define	VI_HISTORY_WORD               	 67
+#define	VI_INSERT                     	 68
+#define	VI_INSERT_AT_BOL              	 69
+#define	VI_KILL_LINE_PREV             	 70
+#define	VI_LIST_OR_EOF                	 71
+#define	VI_MATCH                      	 72
+#define	VI_NEXT_BIG_WORD              	 73
+#define	VI_NEXT_CHAR                  	 74
+#define	VI_NEXT_WORD                  	 75
+#define	VI_PASTE_NEXT                 	 76
+#define	VI_PASTE_PREV                 	 77
+#define	VI_PREV_BIG_WORD              	 78
+#define	VI_PREV_CHAR                  	 79
+#define	VI_PREV_WORD                  	 80
+#define	VI_REDO                       	 81
+#define	VI_REPEAT_NEXT_CHAR           	 82
+#define	VI_REPEAT_PREV_CHAR           	 83
+#define	VI_REPEAT_SEARCH_NEXT         	 84
+#define	VI_REPEAT_SEARCH_PREV         	 85
+#define	VI_REPLACE_CHAR               	 86
+#define	VI_REPLACE_MODE               	 87
+#define	VI_SEARCH_NEXT                	 88
+#define	VI_SEARCH_PREV                	 89
+#define	VI_SUBSTITUTE_CHAR            	 90
+#define	VI_SUBSTITUTE_LINE            	 91
+#define	VI_TO_COLUMN                  	 92
+#define	VI_TO_HISTORY_LINE            	 93
+#define	VI_TO_NEXT_CHAR               	 94
+#define	VI_TO_PREV_CHAR               	 95
+#define	VI_UNDO                       	 96
+#define	VI_UNDO_LINE                  	 97
+#define	VI_YANK                       	 98
+#define	VI_YANK_END                   	 99
+#define	VI_ZERO                       	100
+#define	EL_NUM_FCNS                   	101
+typedef el_action_t (*el_func_t)(EditLine *, int);
+protected const el_func_t* func__get(void);
+#endif /* _h_fcns_c */
diff --git a/frontend/libedit/filecomplete.c b/frontend/libedit/filecomplete.c
new file mode 100644
index 0000000..dd450ca
--- /dev/null
+++ b/frontend/libedit/filecomplete.c
@@ -0,0 +1,550 @@
+/*	$NetBSD: filecomplete.c,v 1.9 2006/08/21 12:45:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jaromir Dolecek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+  
+/* AIX requires this to be the first thing in the file.  */
+#if defined (_AIX) && !defined (__GNUC__)
+ #pragma alloca
+#endif
+
+#include <config.h>
+
+#ifdef __GNUC__
+# undef alloca
+# define alloca(n) __builtin_alloca (n)
+#else
+# ifdef HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifndef _AIX
+extern char *alloca ();
+#  endif
+# endif
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <dirent.h>
+#include <string.h>
+#include <pwd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <vis.h>
+
+#include "sys.h"
+#include "el.h"
+#include "fcns.h"		/* for EL_NUM_FCNS */
+#include "histedit.h"
+#include "filecomplete.h"
+
+static char break_chars[] = { ' ', '\t', '\n', '"', '\\', '\'', '`', '@', '$',
+    '>', '<', '=', ';', '|', '&', '{', '(', '\0' };
+
+
+/********************************/
+/* completion functions */
+
+/*
+ * does tilde expansion of strings of type ``~user/foo''
+ * if ``user'' isn't valid user name or ``txt'' doesn't start
+ * w/ '~', returns pointer to strdup()ed copy of ``txt''
+ *
+ * it's callers's responsibility to free() returned string
+ */
+char *
+fn_tilde_expand(const char *txt)
+{
+	struct passwd pwres, *pass;
+	char *temp;
+	size_t len = 0;
+	char pwbuf[1024];
+
+	if (txt[0] != '~')
+		return (strdup(txt));
+
+	temp = strchr(txt + 1, '/');
+	if (temp == NULL) {
+		temp = strdup(txt + 1);
+		if (temp == NULL)
+			return NULL;
+	} else {
+		len = temp - txt + 1;	/* text until string after slash */
+		temp = malloc(len);
+		if (temp == NULL)
+			return NULL;
+		(void)strncpy(temp, txt + 1, len - 2);
+		temp[len - 2] = '\0';
+	}
+	if (temp[0] == 0) {
+#ifdef HAVE_GETPW_R_POSIX
+		if (getpwuid_r(getuid(), &pwres, pwbuf, sizeof(pwbuf), &pass) != 0)
+			pass = NULL;
+#elif HAVE_GETPW_R_DRAFT
+		pass = getpwuid_r(getuid(), &pwres, pwbuf, sizeof(pwbuf));
+#else 
+      pass = getpwuid(getuid());
+#endif
+	} else {
+#ifdef HAVE_GETPW_R_POSIX
+		if (getpwnam_r(temp, &pwres, pwbuf, sizeof(pwbuf), &pass) != 0)
+			pass = NULL;
+#elif HAVE_GETPW_R_DRAFT
+		pass = getpwnam_r(temp, &pwres, pwbuf, sizeof(pwbuf));
+#else
+		pass = getpwnam(temp);
+#endif
+	}
+	free(temp);		/* value no more needed */
+	if (pass == NULL)
+		return (strdup(txt));
+
+	/* update pointer txt to point at string immedially following */
+	/* first slash */
+	txt += len;
+
+	temp = malloc(strlen(pass->pw_dir) + 1 + strlen(txt) + 1);
+	if (temp == NULL)
+		return NULL;
+	(void)sprintf(temp, "%s/%s", pass->pw_dir, txt);
+
+	return (temp);
+}
+
+
+/*
+ * return first found file name starting by the ``text'' or NULL if no
+ * such file can be found
+ * value of ``state'' is ignored
+ *
+ * it's caller's responsibility to free returned string
+ */
+char *
+fn_filename_completion_function(const char *text, int state)
+{
+	static DIR *dir = NULL;
+	static char *filename = NULL, *dirname = NULL, *dirpath = NULL;
+	static size_t filename_len = 0;
+	struct dirent *entry;
+	char *temp;
+	size_t len;
+
+	if (state == 0 || dir == NULL) {
+		temp = strrchr(text, '/');
+		if (temp) {
+			char *nptr;
+			temp++;
+			nptr = realloc(filename, strlen(temp) + 1);
+			if (nptr == NULL) {
+				free(filename);
+				return NULL;
+			}
+			filename = nptr;
+			(void)strcpy(filename, temp);
+			len = temp - text;	/* including last slash */
+			nptr = realloc(dirname, len + 1);
+			if (nptr == NULL) {
+				free(filename);
+				return NULL;
+			}
+			dirname = nptr;
+			(void)strncpy(dirname, text, len);
+			dirname[len] = '\0';
+		} else {
+			if (*text == 0)
+				filename = NULL;
+			else {
+				filename = strdup(text);
+				if (filename == NULL)
+					return NULL;
+			}
+			dirname = NULL;
+		}
+
+		if (dir != NULL) {
+			(void)closedir(dir);
+			dir = NULL;
+		}
+
+		/* support for ``~user'' syntax */
+		free(dirpath);
+
+		if (dirname == NULL && (dirname = strdup("./")) == NULL)
+			return NULL;
+
+		if (*dirname == '~')
+			dirpath = fn_tilde_expand(dirname);
+		else
+			dirpath = strdup(dirname);
+
+		if (dirpath == NULL)
+			return NULL;
+
+		dir = opendir(dirpath);
+		if (!dir)
+			return (NULL);	/* cannot open the directory */
+
+		/* will be used in cycle */
+		filename_len = filename ? strlen(filename) : 0;
+	}
+
+	/* find the match */
+	while ((entry = readdir(dir)) != NULL) {
+		/* skip . and .. */
+		if (entry->d_name[0] == '.' && (!entry->d_name[1]
+		    || (entry->d_name[1] == '.' && !entry->d_name[2])))
+			continue;
+		if (filename_len == 0)
+			break;
+		/* otherwise, get first entry where first */
+		/* filename_len characters are equal	  */
+		if (entry->d_name[0] == filename[0]
+         /* Some dirents have d_namlen, but it is not portable. */
+		    && strlen(entry->d_name) >= filename_len
+		    && strncmp(entry->d_name, filename,
+			filename_len) == 0)
+			break;
+	}
+
+	if (entry) {		/* match found */
+
+      /* Some dirents have d_namlen, but it is not portable. */
+		len = strlen(entry->d_name);
+		temp = malloc(strlen(dirname) + len + 1);
+		if (temp == NULL)
+			return NULL;
+		(void)sprintf(temp, "%s%s", dirname, entry->d_name);
+	} else {
+		(void)closedir(dir);
+		dir = NULL;
+		temp = NULL;
+	}
+
+	return (temp);
+}
+
+
+static const char *
+append_char_function(const char *name)
+{
+	struct stat stbuf;
+	char *expname = *name == '~' ? fn_tilde_expand(name) : NULL;
+	const char *rs = "";
+
+	if (stat(expname ? expname : name, &stbuf) == -1)
+		goto out;
+	if (S_ISDIR(stbuf.st_mode))
+		rs = "/";
+out:
+	if (expname)
+		free(expname);
+	return rs;
+}
+/*
+ * returns list of completions for text given
+ * non-static for readline.
+ */
+char ** completion_matches(const char *, char *(*)(const char *, int));
+char **
+completion_matches(const char *text, char *(*genfunc)(const char *, int))
+{
+	char **match_list = NULL, *retstr, *prevstr;
+	size_t match_list_len, max_equal, which, i;
+	size_t matches;
+
+	matches = 0;
+	match_list_len = 1;
+	while ((retstr = (*genfunc) (text, (int)matches)) != NULL) {
+		/* allow for list terminator here */
+		if (matches + 3 >= match_list_len) {
+			char **nmatch_list;
+			while (matches + 3 >= match_list_len)
+				match_list_len <<= 1;
+			nmatch_list = realloc(match_list,
+			    match_list_len * sizeof(char *));
+			if (nmatch_list == NULL) {
+				free(match_list);
+				return NULL;
+			}
+			match_list = nmatch_list;
+
+		}
+		match_list[++matches] = retstr;
+	}
+
+	if (!match_list)
+		return NULL;	/* nothing found */
+
+	/* find least denominator and insert it to match_list[0] */
+	which = 2;
+	prevstr = match_list[1];
+	max_equal = strlen(prevstr);
+	for (; which <= matches; which++) {
+		for (i = 0; i < max_equal &&
+		    prevstr[i] == match_list[which][i]; i++)
+			continue;
+		max_equal = i;
+	}
+
+	retstr = malloc(max_equal + 1);
+	if (retstr == NULL) {
+		free(match_list);
+		return NULL;
+	}
+	(void)strncpy(retstr, match_list[1], max_equal);
+	retstr[max_equal] = '\0';
+	match_list[0] = retstr;
+
+	/* add NULL as last pointer to the array */
+	match_list[matches + 1] = (char *) NULL;
+
+	return (match_list);
+}
+
+/*
+ * Sort function for qsort(). Just wrapper around strcasecmp().
+ */
+static int
+_fn_qsort_string_compare(const void *i1, const void *i2)
+{
+	const char *s1 = ((const char * const *)i1)[0];
+	const char *s2 = ((const char * const *)i2)[0];
+
+	return strcasecmp(s1, s2);
+}
+
+/*
+ * Display list of strings in columnar format on readline's output stream.
+ * 'matches' is list of strings, 'len' is number of strings in 'matches',
+ * 'max' is maximum length of string in 'matches'.
+ */
+void
+fn_display_match_list (EditLine *el, char **matches, int len, int max)
+{
+	int i, idx, limit, count;
+	int screenwidth = el->el_term.t_size.h;
+
+	/*
+	 * Find out how many entries can be put on one line, count
+	 * with two spaces between strings.
+	 */
+	limit = screenwidth / (max + 2);
+	if (limit == 0)
+		limit = 1;
+
+	/* how many lines of output */
+	count = len / limit;
+	if (count * limit < len)
+		count++;
+
+	/* Sort the items if they are not already sorted. */
+	qsort(&matches[1], (size_t)(len - 1), sizeof(char *),
+	    _fn_qsort_string_compare);
+
+	idx = 1;
+	for(; count > 0; count--) {
+		for(i = 0; i < limit && matches[idx]; i++, idx++)
+			(void)fprintf(el->el_outfile, "%-*s  ", max,
+			    matches[idx]);
+		(void)fprintf(el->el_outfile, "\n");
+	}
+}
+
+/*
+ * Complete the word at or before point,
+ * 'what_to_do' says what to do with the completion.
+ * \t   means do standard completion.
+ * `?' means list the possible completions.
+ * `*' means insert all of the possible completions.
+ * `!' means to do standard completion, and list all possible completions if
+ * there is more than one.
+ *
+ * Note: '*' support is not implemented
+ *       '!' could never be invoked
+ */
+int
+fn_complete(EditLine *el,
+	char *(*complet_func)(const char *, int),
+	char **(*attempted_completion_function)(const char *, int, int),
+	const char *word_break, const char *special_prefixes,
+	const char *(*app_func)(const char *), int query_items,
+	int *completion_type, int *over, int *point, int *end)
+{
+	const LineInfo *li;
+	char *temp, **matches;
+	const char *ctemp;
+	size_t len;
+	int what_to_do = '\t';
+
+	if (el->el_state.lastcmd == el->el_state.thiscmd)
+		what_to_do = '?';
+
+	/* readline's rl_complete() has to be told what we did... */
+	if (completion_type != NULL)
+		*completion_type = what_to_do;
+
+	if (!complet_func)
+		complet_func = fn_filename_completion_function;
+	if (!app_func)
+		app_func = append_char_function;
+
+	/* We now look backwards for the start of a filename/variable word */
+	li = el_line(el);
+	ctemp = (const char *) li->cursor;
+	while (ctemp > li->buffer
+	    && !strchr(word_break, ctemp[-1])
+	    && (!special_prefixes || !strchr(special_prefixes, ctemp[-1]) ) )
+		ctemp--;
+
+	len = li->cursor - ctemp;
+	temp = alloca(len + 1);
+	(void)strncpy(temp, ctemp, len);
+	temp[len] = '\0';
+
+	/* these can be used by function called in completion_matches() */
+	/* or (*attempted_completion_function)() */
+	if (point != 0)
+		*point = li->cursor - li->buffer;
+	if (end != NULL)
+		*end = li->lastchar - li->buffer;
+
+	if (attempted_completion_function) {
+		int cur_off = li->cursor - li->buffer;
+		matches = (*attempted_completion_function) (temp,
+		    (int)(cur_off - len), cur_off);
+	} else
+		matches = 0;
+	if (!attempted_completion_function || 
+	    (over != NULL && !*over && !matches))
+		matches = completion_matches(temp, complet_func);
+
+	if (over != NULL)
+		*over = 0;
+
+	if (matches) {
+		int i, retval = CC_REFRESH;
+		int matches_num, maxlen, match_len, match_display=1;
+
+		/*
+		 * Only replace the completed string with common part of
+		 * possible matches if there is possible completion.
+		 */
+		if (matches[0][0] != '\0') {
+			el_deletestr(el, (int) len);
+			el_insertstr(el, matches[0]);
+		}
+
+		if (what_to_do == '?')
+			goto display_matches;
+
+		if (matches[2] == NULL && strcmp(matches[0], matches[1]) == 0) {
+			/*
+			 * We found exact match. Add a space after
+			 * it, unless we do filename completion and the
+			 * object is a directory.
+			 */
+			el_insertstr(el, (*append_char_function)(matches[0])); 
+		} else if (what_to_do == '!') {
+    display_matches:
+			/*
+			 * More than one match and requested to list possible
+			 * matches.
+			 */
+
+			for(i=1, maxlen=0; matches[i]; i++) {
+				match_len = strlen(matches[i]);
+				if (match_len > maxlen)
+					maxlen = match_len;
+			}
+			matches_num = i - 1;
+				
+			/* newline to get on next line from command line */
+			(void)fprintf(el->el_outfile, "\n");
+
+			/*
+			 * If there are too many items, ask user for display
+			 * confirmation.
+			 */
+			if (matches_num > query_items) {
+				(void)fprintf(el->el_outfile,
+				    "Display all %d possibilities? (y or n) ",
+				    matches_num);
+				(void)fflush(el->el_outfile);
+				if (getc(stdin) != 'y')
+					match_display = 0;
+				(void)fprintf(el->el_outfile, "\n");
+			}
+
+			if (match_display)
+				fn_display_match_list(el, matches, matches_num,
+					maxlen);
+			retval = CC_REDISPLAY;
+		} else if (matches[0][0]) {
+			/*
+			 * There was some common match, but the name was
+			 * not complete enough. Next tab will print possible
+			 * completions.
+			 */
+			el_beep(el);
+		} else {
+			/* lcd is not a valid object - further specification */
+			/* is needed */
+			el_beep(el);
+			retval = CC_NORM;
+		}
+
+		/* free elements of array and the array itself */
+		for (i = 0; matches[i]; i++)
+			free(matches[i]);
+		free(matches), matches = NULL;
+
+		return (retval);
+	}
+	return (CC_NORM);
+}
+
+/*
+ * el-compatible wrapper around rl_complete; needed for key binding
+ */
+/* ARGSUSED */
+unsigned char
+_el_fn_complete(EditLine *el, int ch __attribute__((__unused__)))
+{
+	return (unsigned char)fn_complete(el, NULL, NULL,
+	    break_chars, NULL, NULL, 100,
+	    NULL, NULL, NULL, NULL);
+}
diff --git a/frontend/libedit/filecomplete.h b/frontend/libedit/filecomplete.h
new file mode 100644
index 0000000..f725378
--- /dev/null
+++ b/frontend/libedit/filecomplete.h
@@ -0,0 +1,47 @@
+/*	$NetBSD: filecomplete.h,v 1.5 2006/08/21 12:45:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jaromir Dolecek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FILECOMPLETE_H_
+#define _FILECOMPLETE_H_
+
+int fn_complete(EditLine *,
+    char *(*)(const char *, int),
+    char **(*)(const char *, int, int),
+    const char *, const char *, const char *(*)(const char *), int,
+    int *, int *, int *, int *);
+
+void fn_display_match_list(EditLine *, char **, int, int);
+char *fn_tilde_expand(const char *);
+char *fn_filename_completion_function(const char *, int);
+
+#endif
diff --git a/frontend/libedit/help.c b/frontend/libedit/help.c
new file mode 100644
index 0000000..7cbb5f6
--- /dev/null
+++ b/frontend/libedit/help.c
@@ -0,0 +1,210 @@
+/* Automatically generated file, do not edit */
+#include "sys.h"
+#include "el.h"
+private const struct el_bindings_t el_func_help[] = {
+    { "vi-paste-next",               VI_PASTE_NEXT,                
+      "Vi paste previous deletion to the right of the cursor" },
+    { "vi-paste-prev",               VI_PASTE_PREV,                
+      "Vi paste previous deletion to the left of the cursor" },
+    { "vi-prev-big-word",            VI_PREV_BIG_WORD,             
+      "Vi move to the previous space delimited word" },
+    { "vi-prev-word",                VI_PREV_WORD,                 
+      "Vi move to the previous word" },
+    { "vi-next-big-word",            VI_NEXT_BIG_WORD,             
+      "Vi move to the next space delimited word" },
+    { "vi-next-word",                VI_NEXT_WORD,                 
+      "Vi move to the next word" },
+    { "vi-change-case",              VI_CHANGE_CASE,               
+      "Vi change case of character under the cursor and advance one character" },
+    { "vi-change-meta",              VI_CHANGE_META,               
+      "Vi change prefix command" },
+    { "vi-insert-at-bol",            VI_INSERT_AT_BOL,             
+      "Vi enter insert mode at the beginning of line" },
+    { "vi-replace-char",             VI_REPLACE_CHAR,              
+      "Vi replace character under the cursor with the next character typed" },
+    { "vi-replace-mode",             VI_REPLACE_MODE,              
+      "Vi enter replace mode" },
+    { "vi-substitute-char",          VI_SUBSTITUTE_CHAR,           
+      "Vi replace character under the cursor and enter insert mode" },
+    { "vi-substitute-line",          VI_SUBSTITUTE_LINE,           
+      "Vi substitute entire line" },
+    { "vi-change-to-eol",            VI_CHANGE_TO_EOL,             
+      "Vi change to end of line" },
+    { "vi-insert",                   VI_INSERT,                    
+      "Vi enter insert mode" },
+    { "vi-add",                      VI_ADD,                       
+      "Vi enter insert mode after the cursor" },
+    { "vi-add-at-eol",               VI_ADD_AT_EOL,                
+      "Vi enter insert mode at end of line" },
+    { "vi-delete-meta",              VI_DELETE_META,               
+      "Vi delete prefix command" },
+    { "vi-end-big-word",             VI_END_BIG_WORD,              
+      "Vi move to the end of the current space delimited word" },
+    { "vi-end-word",                 VI_END_WORD,                  
+      "Vi move to the end of the current word" },
+    { "vi-undo",                     VI_UNDO,                      
+      "Vi undo last change" },
+    { "vi-command-mode",             VI_COMMAND_MODE,              
+      "Vi enter command mode (use alternative key bindings)" },
+    { "vi-zero",                     VI_ZERO,                      
+      "Vi move to the beginning of line" },
+    { "vi-delete-prev-char",         VI_DELETE_PREV_CHAR,          
+      "Vi move to previous character (backspace)" },
+    { "vi-list-or-eof",              VI_LIST_OR_EOF,               
+      "Vi list choices for completion or indicate end of file if empty line" },
+    { "vi-kill-line-prev",           VI_KILL_LINE_PREV,            
+      "Vi cut from beginning of line to cursor" },
+    { "vi-search-prev",              VI_SEARCH_PREV,               
+      "Vi search history previous" },
+    { "vi-search-next",              VI_SEARCH_NEXT,               
+      "Vi search history next" },
+    { "vi-repeat-search-next",       VI_REPEAT_SEARCH_NEXT,        
+      "Vi repeat current search in the same search direction" },
+    { "vi-repeat-search-prev",       VI_REPEAT_SEARCH_PREV,        
+      "Vi repeat current search in the opposite search direction" },
+    { "vi-next-char",                VI_NEXT_CHAR,                 
+      "Vi move to the character specified next" },
+    { "vi-prev-char",                VI_PREV_CHAR,                 
+      "Vi move to the character specified previous" },
+    { "vi-to-next-char",             VI_TO_NEXT_CHAR,              
+      "Vi move up to the character specified next" },
+    { "vi-to-prev-char",             VI_TO_PREV_CHAR,              
+      "Vi move up to the character specified previous" },
+    { "vi-repeat-next-char",         VI_REPEAT_NEXT_CHAR,          
+      "Vi repeat current character search in the same search direction" },
+    { "vi-repeat-prev-char",         VI_REPEAT_PREV_CHAR,          
+      "Vi repeat current character search in the opposite search direction" },
+    { "vi-match",                    VI_MATCH,                     
+      "Vi go to matching () {} or []" },
+    { "vi-undo-line",                VI_UNDO_LINE,                 
+      "Vi undo all changes to line" },
+    { "vi-to-column",                VI_TO_COLUMN,                 
+      "Vi go to specified column" },
+    { "vi-yank-end",                 VI_YANK_END,                  
+      "Vi yank to end of line" },
+    { "vi-yank",                     VI_YANK,                      
+      "Vi yank" },
+    { "vi-comment-out",              VI_COMMENT_OUT,               
+      "Vi comment out current command" },
+    { "vi-alias",                    VI_ALIAS,                     
+      "Vi include shell alias" },
+    { "vi-to-history-line",          VI_TO_HISTORY_LINE,           
+      "Vi go to specified history file line." },
+    { "vi-histedit",                 VI_HISTEDIT,                  
+      "Vi edit history line with vi" },
+    { "vi-history-word",             VI_HISTORY_WORD,              
+      "Vi append word from previous input line" },
+    { "vi-redo",                     VI_REDO,                      
+      "Vi redo last non-motion command" },
+    { "em-delete-or-list",           EM_DELETE_OR_LIST,            
+      "Delete character under cursor or list completions if at end of line" },
+    { "em-delete-next-word",         EM_DELETE_NEXT_WORD,          
+      "Cut from cursor to end of current word" },
+    { "em-yank",                     EM_YANK,                      
+      "Paste cut buffer at cursor position" },
+    { "em-kill-line",                EM_KILL_LINE,                 
+      "Cut the entire line and save in cut buffer" },
+    { "em-kill-region",              EM_KILL_REGION,               
+      "Cut area between mark and cursor and save in cut buffer" },
+    { "em-copy-region",              EM_COPY_REGION,               
+      "Copy area between mark and cursor to cut buffer" },
+    { "em-gosmacs-transpose",        EM_GOSMACS_TRANSPOSE,         
+      "Exchange the two characters before the cursor" },
+    { "em-next-word",                EM_NEXT_WORD,                 
+      "Move next to end of current word" },
+    { "em-upper-case",               EM_UPPER_CASE,                
+      "Uppercase the characters from cursor to end of current word" },
+    { "em-capitol-case",             EM_CAPITOL_CASE,              
+      "Capitalize the characters from cursor to end of current word" },
+    { "em-lower-case",               EM_LOWER_CASE,                
+      "Lowercase the characters from cursor to end of current word" },
+    { "em-set-mark",                 EM_SET_MARK,                  
+      "Set the mark at cursor" },
+    { "em-exchange-mark",            EM_EXCHANGE_MARK,             
+      "Exchange the cursor and mark" },
+    { "em-universal-argument",       EM_UNIVERSAL_ARGUMENT,        
+      "Universal argument (argument times 4)" },
+    { "em-meta-next",                EM_META_NEXT,                 
+      "Add 8th bit to next character typed" },
+    { "em-toggle-overwrite",         EM_TOGGLE_OVERWRITE,          
+      "Switch from insert to overwrite mode or vice versa" },
+    { "em-copy-prev-word",           EM_COPY_PREV_WORD,            
+      "Copy current word to cursor" },
+    { "em-inc-search-next",          EM_INC_SEARCH_NEXT,           
+      "Emacs incremental next search" },
+    { "em-inc-search-prev",          EM_INC_SEARCH_PREV,           
+      "Emacs incremental reverse search" },
+    { "ed-end-of-file",              ED_END_OF_FILE,               
+      "Indicate end of file" },
+    { "ed-insert",                   ED_INSERT,                    
+      "Add character to the line" },
+    { "ed-delete-prev-word",         ED_DELETE_PREV_WORD,          
+      "Delete from beginning of current word to cursor" },
+    { "ed-delete-next-char",         ED_DELETE_NEXT_CHAR,          
+      "Delete character under cursor" },
+    { "ed-kill-line",                ED_KILL_LINE,                 
+      "Cut to the end of line" },
+    { "ed-move-to-end",              ED_MOVE_TO_END,               
+      "Move cursor to the end of line" },
+    { "ed-move-to-beg",              ED_MOVE_TO_BEG,               
+      "Move cursor to the beginning of line" },
+    { "ed-transpose-chars",          ED_TRANSPOSE_CHARS,           
+      "Exchange the character to the left of the cursor with the one under it" },
+    { "ed-next-char",                ED_NEXT_CHAR,                 
+      "Move to the right one character" },
+    { "ed-prev-word",                ED_PREV_WORD,                 
+      "Move to the beginning of the current word" },
+    { "ed-prev-char",                ED_PREV_CHAR,                 
+      "Move to the left one character" },
+    { "ed-quoted-insert",            ED_QUOTED_INSERT,             
+      "Add the next character typed verbatim" },
+    { "ed-digit",                    ED_DIGIT,                     
+      "Adds to argument or enters a digit" },
+    { "ed-argument-digit",           ED_ARGUMENT_DIGIT,            
+      "Digit that starts argument" },
+    { "ed-unassigned",               ED_UNASSIGNED,                
+      "Indicates unbound character" },
+    { "ed-tty-sigint",               ED_TTY_SIGINT,                
+      "Tty interrupt character" },
+    { "ed-tty-dsusp",                ED_TTY_DSUSP,                 
+      "Tty delayed suspend character" },
+    { "ed-tty-flush-output",         ED_TTY_FLUSH_OUTPUT,          
+      "Tty flush output characters" },
+    { "ed-tty-sigquit",              ED_TTY_SIGQUIT,               
+      "Tty quit character" },
+    { "ed-tty-sigtstp",              ED_TTY_SIGTSTP,               
+      "Tty suspend character" },
+    { "ed-tty-stop-output",          ED_TTY_STOP_OUTPUT,           
+      "Tty disallow output characters" },
+    { "ed-tty-start-output",         ED_TTY_START_OUTPUT,          
+      "Tty allow output characters" },
+    { "ed-newline",                  ED_NEWLINE,                   
+      "Execute command" },
+    { "ed-delete-prev-char",         ED_DELETE_PREV_CHAR,          
+      "Delete the character to the left of the cursor" },
+    { "ed-clear-screen",             ED_CLEAR_SCREEN,              
+      "Clear screen leaving current line at the top" },
+    { "ed-redisplay",                ED_REDISPLAY,                 
+      "Redisplay everything" },
+    { "ed-start-over",               ED_START_OVER,                
+      "Erase current line and start from scratch" },
+    { "ed-sequence-lead-in",         ED_SEQUENCE_LEAD_IN,          
+      "First character in a bound sequence" },
+    { "ed-prev-history",             ED_PREV_HISTORY,              
+      "Move to the previous history line" },
+    { "ed-next-history",             ED_NEXT_HISTORY,              
+      "Move to the next history line" },
+    { "ed-search-prev-history",      ED_SEARCH_PREV_HISTORY,       
+      "Search previous in history for a line matching the current" },
+    { "ed-search-next-history",      ED_SEARCH_NEXT_HISTORY,       
+      "Search next in history for a line matching the current" },
+    { "ed-prev-line",                ED_PREV_LINE,                 
+      "Move up one line" },
+    { "ed-next-line",                ED_NEXT_LINE,                 
+      "Move down one line" },
+    { "ed-command",                  ED_COMMAND,                   
+      "Editline extended command" },
+    { NULL, 0, NULL }
+};
+
+protected const el_bindings_t* help__get(){ return el_func_help; }
diff --git a/frontend/libedit/help.h b/frontend/libedit/help.h
new file mode 100644
index 0000000..a7e89a1
--- /dev/null
+++ b/frontend/libedit/help.h
@@ -0,0 +1,5 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_help_c
+#define _h_help_c
+protected const el_bindings_t *help__get(void);
+#endif /* _h_help_c */
diff --git a/frontend/libedit/hist.c b/frontend/libedit/hist.c
new file mode 100644
index 0000000..4db3ef2
--- /dev/null
+++ b/frontend/libedit/hist.c
@@ -0,0 +1,204 @@
+/*	$NetBSD: hist.c,v 1.15 2003/11/01 23:36:39 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * hist.c: History access functions
+ */
+#include <stdlib.h>
+#include "el.h"
+
+/* hist_init():
+ *	Initialization function.
+ */
+protected int
+hist_init(EditLine *el)
+{
+
+	el->el_history.fun = NULL;
+	el->el_history.ref = NULL;
+	el->el_history.buf = (char *) el_malloc(EL_BUFSIZ);
+	el->el_history.sz  = EL_BUFSIZ;
+	if (el->el_history.buf == NULL)
+		return (-1);
+	el->el_history.last = el->el_history.buf;
+	return (0);
+}
+
+
+/* hist_end():
+ *	clean up history;
+ */
+protected void
+hist_end(EditLine *el)
+{
+
+	el_free((ptr_t) el->el_history.buf);
+	el->el_history.buf = NULL;
+}
+
+
+/* hist_set():
+ *	Set new history interface
+ */
+protected int
+hist_set(EditLine *el, hist_fun_t fun, ptr_t ptr)
+{
+
+	el->el_history.ref = ptr;
+	el->el_history.fun = fun;
+	return (0);
+}
+
+
+/* hist_get():
+ *	Get a history line and update it in the buffer.
+ *	eventno tells us the event to get.
+ */
+protected el_action_t
+hist_get(EditLine *el)
+{
+	const char *hp;
+	int h;
+
+	if (el->el_history.eventno == 0) {	/* if really the current line */
+		(void) strncpy(el->el_line.buffer, el->el_history.buf,
+		    el->el_history.sz);
+		el->el_line.lastchar = el->el_line.buffer +
+		    (el->el_history.last - el->el_history.buf);
+
+#ifdef KSHVI
+		if (el->el_map.type == MAP_VI)
+			el->el_line.cursor = el->el_line.buffer;
+		else
+#endif /* KSHVI */
+			el->el_line.cursor = el->el_line.lastchar;
+
+		return (CC_REFRESH);
+	}
+	if (el->el_history.ref == NULL)
+		return (CC_ERROR);
+
+	hp = HIST_FIRST(el);
+
+	if (hp == NULL)
+		return (CC_ERROR);
+
+	for (h = 1; h < el->el_history.eventno; h++)
+		if ((hp = HIST_NEXT(el)) == NULL) {
+			el->el_history.eventno = h;
+			return (CC_ERROR);
+		}
+	(void) strlcpy(el->el_line.buffer, hp,
+			(size_t)(el->el_line.limit - el->el_line.buffer));
+	el->el_line.lastchar = el->el_line.buffer + strlen(el->el_line.buffer);
+
+	if (el->el_line.lastchar > el->el_line.buffer
+	    && el->el_line.lastchar[-1] == '\n')
+		el->el_line.lastchar--;
+	if (el->el_line.lastchar > el->el_line.buffer
+	    && el->el_line.lastchar[-1] == ' ')
+		el->el_line.lastchar--;
+#ifdef KSHVI
+	if (el->el_map.type == MAP_VI)
+		el->el_line.cursor = el->el_line.buffer;
+	else
+#endif /* KSHVI */
+		el->el_line.cursor = el->el_line.lastchar;
+
+	return (CC_REFRESH);
+}
+
+
+/* hist_command()
+ *	process a history command
+ */
+protected int
+hist_command(EditLine *el, int argc, const char **argv)
+{
+	const char *str;
+	int num;
+	HistEvent ev;
+
+	if (el->el_history.ref == NULL)
+		return (-1);
+
+	if (argc == 1 || strcmp(argv[1], "list") == 0) {
+		 /* List history entries */
+
+		for (str = HIST_LAST(el); str != NULL; str = HIST_PREV(el))
+			(void) fprintf(el->el_outfile, "%d %s",
+			    el->el_history.ev.num, str);
+		return (0);
+	}
+
+	if (argc != 3)
+		return (-1);
+
+	num = (int)strtol(argv[2], NULL, 0);
+
+	if (strcmp(argv[1], "size") == 0)
+		return history(el->el_history.ref, &ev, H_SETSIZE, num);
+
+	if (strcmp(argv[1], "unique") == 0)
+		return history(el->el_history.ref, &ev, H_SETUNIQUE, num);
+
+	return -1;
+}
+
+/* hist_enlargebuf()
+ *	Enlarge history buffer to specified value. Called from el_enlargebufs().
+ *	Return 0 for failure, 1 for success.
+ */
+protected int
+/*ARGSUSED*/
+hist_enlargebuf(EditLine *el, size_t oldsz, size_t newsz)
+{
+	char *newbuf;
+
+	newbuf = realloc(el->el_history.buf, newsz);
+	if (!newbuf)
+		return 0;
+
+	(void) memset(&newbuf[oldsz], '\0', newsz - oldsz);
+
+	el->el_history.last = newbuf +
+				(el->el_history.last - el->el_history.buf);
+	el->el_history.buf = newbuf;
+	el->el_history.sz  = newsz;
+
+	return 1;
+}
diff --git a/frontend/libedit/hist.h b/frontend/libedit/hist.h
new file mode 100644
index 0000000..46e1463
--- /dev/null
+++ b/frontend/libedit/hist.h
@@ -0,0 +1,76 @@
+/*	$NetBSD: hist.h,v 1.10 2003/08/07 16:44:31 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)hist.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.hist.c: History functions
+ */
+#ifndef _h_el_hist
+#define	_h_el_hist
+
+#include "histedit.h"
+
+typedef int (*hist_fun_t)(ptr_t, HistEvent *, int, ...);
+
+typedef struct el_history_t {
+	char		*buf;		/* The history buffer		*/
+	size_t		sz;		/* Size of history buffer	*/
+	char		*last;		/* The last character		*/
+	int		 eventno;	/* Event we are looking for	*/
+	ptr_t		 ref;		/* Argument for history fcns	*/
+	hist_fun_t	 fun;		/* Event access			*/
+	HistEvent	 ev;		/* Event cookie			*/
+} el_history_t;
+
+#define	HIST_FUN(el, fn, arg)	\
+    ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
+	fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
+
+#define	HIST_NEXT(el)		HIST_FUN(el, H_NEXT, NULL)
+#define	HIST_FIRST(el)		HIST_FUN(el, H_FIRST, NULL)
+#define	HIST_LAST(el)		HIST_FUN(el, H_LAST, NULL)
+#define	HIST_PREV(el)		HIST_FUN(el, H_PREV, NULL)
+#define	HIST_SET(el, num)	HIST_FUN(el, H_SET, num)
+#define	HIST_LOAD(el, fname)	HIST_FUN(el, H_LOAD fname)
+#define	HIST_SAVE(el, fname)	HIST_FUN(el, H_SAVE fname)
+
+protected int		hist_init(EditLine *);
+protected void		hist_end(EditLine *);
+protected el_action_t	hist_get(EditLine *);
+protected int		hist_set(EditLine *, hist_fun_t, ptr_t);
+protected int		hist_command(EditLine *, int, const char **);
+protected int		hist_enlargebuf(EditLine *, size_t, size_t);
+
+#endif /* _h_el_hist */
diff --git a/frontend/libedit/histedit.h b/frontend/libedit/histedit.h
new file mode 100644
index 0000000..40f0dd1
--- /dev/null
+++ b/frontend/libedit/histedit.h
@@ -0,0 +1,224 @@
+/*	$NetBSD: histedit.h,v 1.28 2005/07/14 15:00:58 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)histedit.h	8.2 (Berkeley) 1/3/94
+ */
+
+/*
+ * histedit.h: Line editor and history interface.
+ */
+#ifndef _HISTEDIT_H_
+#define	_HISTEDIT_H_
+
+#define	LIBEDIT_MAJOR 2
+#define	LIBEDIT_MINOR 9
+
+#include <sys/types.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * ==== Editing ====
+ */
+
+typedef struct editline EditLine;
+
+/*
+ * For user-defined function interface
+ */
+typedef struct lineinfo {
+	const char	*buffer;
+	const char	*cursor;
+	const char	*lastchar;
+} LineInfo;
+
+/*
+ * EditLine editor function return codes.
+ * For user-defined function interface
+ */
+#define	CC_NORM		0
+#define	CC_NEWLINE	1
+#define	CC_EOF		2
+#define	CC_ARGHACK	3
+#define	CC_REFRESH	4
+#define	CC_CURSOR	5
+#define	CC_ERROR	6
+#define	CC_FATAL	7
+#define	CC_REDISPLAY	8
+#define	CC_REFRESH_BEEP	9
+
+/*
+ * Initialization, cleanup, and resetting
+ */
+EditLine	*el_init(const char *, FILE *, FILE *, FILE *);
+void		 el_end(EditLine *);
+void		 el_reset(EditLine *);
+
+/*
+ * Get a line, a character or push a string back in the input queue
+ */
+const char	*el_gets(EditLine *, int *);
+int		 el_getc(EditLine *, char *);
+void		 el_push(EditLine *, char *);
+
+/*
+ * Beep!
+ */
+void		 el_beep(EditLine *);
+
+/*
+ * High level function internals control
+ * Parses argc, argv array and executes builtin editline commands
+ */
+int		 el_parse(EditLine *, int, const char **);
+
+/*
+ * Low level editline access functions
+ */
+int		 el_set(EditLine *, int, ...);
+int		 el_get(EditLine *, int, void *);
+unsigned char	_el_fn_complete(EditLine *, int);
+
+/*
+ * el_set/el_get parameters
+ */
+#define	EL_PROMPT	0	/* , el_pfunc_t);		*/
+#define	EL_TERMINAL	1	/* , const char *);		*/
+#define	EL_EDITOR	2	/* , const char *);		*/
+#define	EL_SIGNAL	3	/* , int);			*/
+#define	EL_BIND		4	/* , const char *, ..., NULL);	*/
+#define	EL_TELLTC	5	/* , const char *, ..., NULL);	*/
+#define	EL_SETTC	6	/* , const char *, ..., NULL);	*/
+#define	EL_ECHOTC	7	/* , const char *, ..., NULL);	*/
+#define	EL_SETTY	8	/* , const char *, ..., NULL);	*/
+#define	EL_ADDFN	9	/* , const char *, const char *	*/
+				/* , el_func_t);		*/
+#define	EL_HIST		10	/* , hist_fun_t, const char *);	*/
+#define	EL_EDITMODE	11	/* , int);			*/
+#define	EL_RPROMPT	12	/* , el_pfunc_t);		*/
+#define	EL_GETCFN	13	/* , el_rfunc_t);		*/
+#define	EL_CLIENTDATA	14	/* , void *);			*/
+#define	EL_UNBUFFERED	15	/* , int);			*/
+#define	EL_PREP_TERM    16      /* , int);                      */
+
+#define EL_BUILTIN_GETCFN	(NULL)
+
+/*
+ * Source named file or $PWD/.editrc or $HOME/.editrc
+ */
+int		el_source(EditLine *, const char *);
+
+/*
+ * Must be called when the terminal changes size; If EL_SIGNAL
+ * is set this is done automatically otherwise it is the responsibility
+ * of the application
+ */
+void		 el_resize(EditLine *);
+
+/*
+ * User-defined function interface.
+ */
+const LineInfo	*el_line(EditLine *);
+int		 el_insertstr(EditLine *, const char *);
+void		 el_deletestr(EditLine *, int);
+
+
+/*
+ * ==== History ====
+ */
+
+typedef struct history History;
+
+typedef struct HistEvent {
+	int		 num;
+	const char	*str;
+} HistEvent;
+
+/*
+ * History access functions.
+ */
+History *	history_init(void);
+void		history_end(History *);
+
+int		history(History *, HistEvent *, int, ...);
+
+#define	H_FUNC		 0	/* , UTSL		*/
+#define	H_SETSIZE	 1	/* , const int);	*/
+#define	H_GETSIZE	 2	/* , void);		*/
+#define	H_FIRST		 3	/* , void);		*/
+#define	H_LAST		 4	/* , void);		*/
+#define	H_PREV		 5	/* , void);		*/
+#define	H_NEXT		 6	/* , void);		*/
+#define	H_CURR		 8	/* , const int);	*/
+#define	H_SET		 7	/* , int);		*/
+#define	H_ADD		 9	/* , const char *);	*/
+#define	H_ENTER		10	/* , const char *);	*/
+#define	H_APPEND	11	/* , const char *);	*/
+#define	H_END		12	/* , void);		*/
+#define	H_NEXT_STR	13	/* , const char *);	*/
+#define	H_PREV_STR	14	/* , const char *);	*/
+#define	H_NEXT_EVENT	15	/* , const int);	*/
+#define	H_PREV_EVENT	16	/* , const int);	*/
+#define	H_LOAD		17	/* , const char *);	*/
+#define	H_SAVE		18	/* , const char *);	*/
+#define	H_CLEAR		19	/* , void);		*/
+#define	H_SETUNIQUE	20	/* , int);		*/
+#define	H_GETUNIQUE	21	/* , void);		*/
+#define	H_DEL		22	/* , int);		*/
+
+
+/*
+ * ==== Tokenization ====
+ */
+
+typedef struct tokenizer Tokenizer;
+
+/*
+ * String tokenization functions, using simplified sh(1) quoting rules
+ */
+Tokenizer	*tok_init(const char *);
+void		 tok_end(Tokenizer *);
+void		 tok_reset(Tokenizer *);
+int		 tok_line(Tokenizer *, const LineInfo *,
+		    int *, const char ***, int *, int *);
+int		 tok_str(Tokenizer *, const char *,
+		    int *, const char ***);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HISTEDIT_H_ */
diff --git a/frontend/libedit/history.c b/frontend/libedit/history.c
new file mode 100644
index 0000000..391a90e
--- /dev/null
+++ b/frontend/libedit/history.c
@@ -0,0 +1,981 @@
+/*	$NetBSD: history.c,v 1.32 2006/09/28 13:52:51 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * hist.c: History access functions
+ */
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <vis.h>
+#include <sys/stat.h>
+
+static const char hist_cookie[] = "_HiStOrY_V2_\n";
+
+#include "histedit.h"
+
+typedef int (*history_gfun_t)(ptr_t, HistEvent *);
+typedef int (*history_efun_t)(ptr_t, HistEvent *, const char *);
+typedef void (*history_vfun_t)(ptr_t, HistEvent *);
+typedef int (*history_sfun_t)(ptr_t, HistEvent *, const int);
+
+struct history {
+	ptr_t h_ref;		/* Argument for history fcns	 */
+	int h_ent;		/* Last entry point for history	 */
+	history_gfun_t h_first;	/* Get the first element	 */
+	history_gfun_t h_next;	/* Get the next element		 */
+	history_gfun_t h_last;	/* Get the last element		 */
+	history_gfun_t h_prev;	/* Get the previous element	 */
+	history_gfun_t h_curr;	/* Get the current element	 */
+	history_sfun_t h_set;	/* Set the current element	 */
+	history_sfun_t h_del;	/* Set the given element	 */
+	history_vfun_t h_clear;	/* Clear the history list	 */
+	history_efun_t h_enter;	/* Add an element		 */
+	history_efun_t h_add;	/* Append to an element		 */
+};
+
+#define	HNEXT(h, ev)		(*(h)->h_next)((h)->h_ref, ev)
+#define	HFIRST(h, ev)		(*(h)->h_first)((h)->h_ref, ev)
+#define	HPREV(h, ev)		(*(h)->h_prev)((h)->h_ref, ev)
+#define	HLAST(h, ev)		(*(h)->h_last)((h)->h_ref, ev)
+#define	HCURR(h, ev)		(*(h)->h_curr)((h)->h_ref, ev)
+#define	HSET(h, ev, n)		(*(h)->h_set)((h)->h_ref, ev, n)
+#define	HCLEAR(h, ev)		(*(h)->h_clear)((h)->h_ref, ev)
+#define	HENTER(h, ev, str)	(*(h)->h_enter)((h)->h_ref, ev, str)
+#define	HADD(h, ev, str)	(*(h)->h_add)((h)->h_ref, ev, str)
+#define	HDEL(h, ev, n)		(*(h)->h_del)((h)->h_ref, ev, n)
+
+#define	h_strdup(a)	strdup(a)
+#define	h_malloc(a)	malloc(a)
+#define	h_realloc(a, b)	realloc((a), (b))
+#define	h_free(a)	free(a)
+
+typedef struct {
+    int		num;
+    char	*str;
+} HistEventPrivate;
+
+
+
+private int history_setsize(History *, HistEvent *, int);
+private int history_getsize(History *, HistEvent *);
+private int history_setunique(History *, HistEvent *, int);
+private int history_getunique(History *, HistEvent *);
+private int history_set_fun(History *, History *);
+private int history_load(History *, const char *);
+private int history_save(History *, const char *);
+private int history_prev_event(History *, HistEvent *, int);
+private int history_next_event(History *, HistEvent *, int);
+private int history_next_string(History *, HistEvent *, const char *);
+private int history_prev_string(History *, HistEvent *, const char *);
+
+
+/***********************************************************************/
+
+/*
+ * Builtin- history implementation
+ */
+typedef struct hentry_t {
+	HistEvent ev;		/* What we return		 */
+	struct hentry_t *next;	/* Next entry			 */
+	struct hentry_t *prev;	/* Previous entry		 */
+} hentry_t;
+
+typedef struct history_t {
+	hentry_t list;		/* Fake list header element	*/
+	hentry_t *cursor;	/* Current element in the list	*/
+	int max;		/* Maximum number of events	*/
+	int cur;		/* Current number of events	*/
+	int eventid;		/* For generation of unique event id	 */
+	int flags;		/* History flags		*/
+#define H_UNIQUE	1	/* Store only unique elements	*/
+} history_t;
+
+private int history_def_next(ptr_t, HistEvent *);
+private int history_def_first(ptr_t, HistEvent *);
+private int history_def_prev(ptr_t, HistEvent *);
+private int history_def_last(ptr_t, HistEvent *);
+private int history_def_curr(ptr_t, HistEvent *);
+private int history_def_set(ptr_t, HistEvent *, const int);
+private void history_def_clear(ptr_t, HistEvent *);
+private int history_def_enter(ptr_t, HistEvent *, const char *);
+private int history_def_add(ptr_t, HistEvent *, const char *);
+private int history_def_del(ptr_t, HistEvent *, const int);
+
+private int history_def_init(ptr_t *, HistEvent *, int);
+private int history_def_insert(history_t *, HistEvent *, const char *);
+private void history_def_delete(history_t *, HistEvent *, hentry_t *);
+
+#define	history_def_setsize(p, num)(void) (((history_t *)p)->max = (num))
+#define	history_def_getsize(p)  (((history_t *)p)->cur)
+#define	history_def_getunique(p) (((((history_t *)p)->flags) & H_UNIQUE) != 0)
+#define	history_def_setunique(p, uni) \
+    if (uni) \
+	(((history_t *)p)->flags) |= H_UNIQUE; \
+    else \
+	(((history_t *)p)->flags) &= ~H_UNIQUE
+
+#define	he_strerror(code)	he_errlist[code]
+#define	he_seterrev(evp, code)	{\
+				    evp->num = code;\
+				    evp->str = he_strerror(code);\
+				}
+
+/* error messages */
+static const char *const he_errlist[] = {
+	"OK",
+	"unknown error",
+	"malloc() failed",
+	"first event not found",
+	"last event not found",
+	"empty list",
+	"no next event",
+	"no previous event",
+	"current event is invalid",
+	"event not found",
+	"can't read history from file",
+	"can't write history",
+	"required parameter(s) not supplied",
+	"history size negative",
+	"function not allowed with other history-functions-set the default",
+	"bad parameters"
+};
+/* error codes */
+#define	_HE_OK                   0
+#define	_HE_UNKNOWN		 1
+#define	_HE_MALLOC_FAILED        2
+#define	_HE_FIRST_NOTFOUND       3
+#define	_HE_LAST_NOTFOUND        4
+#define	_HE_EMPTY_LIST           5
+#define	_HE_END_REACHED          6
+#define	_HE_START_REACHED	 7
+#define	_HE_CURR_INVALID	 8
+#define	_HE_NOT_FOUND		 9
+#define	_HE_HIST_READ		10
+#define	_HE_HIST_WRITE		11
+#define	_HE_PARAM_MISSING	12
+#define	_HE_SIZE_NEGATIVE	13
+#define	_HE_NOT_ALLOWED		14
+#define	_HE_BAD_PARAM		15
+
+/* history_def_first():
+ *	Default function to return the first event in the history.
+ */
+private int
+history_def_first(ptr_t p, HistEvent *ev)
+{
+	history_t *h = (history_t *) p;
+
+	h->cursor = h->list.next;
+	if (h->cursor != &h->list)
+		*ev = h->cursor->ev;
+	else {
+		he_seterrev(ev, _HE_FIRST_NOTFOUND);
+		return (-1);
+	}
+
+	return (0);
+}
+
+
+/* history_def_last():
+ *	Default function to return the last event in the history.
+ */
+private int
+history_def_last(ptr_t p, HistEvent *ev)
+{
+	history_t *h = (history_t *) p;
+
+	h->cursor = h->list.prev;
+	if (h->cursor != &h->list)
+		*ev = h->cursor->ev;
+	else {
+		he_seterrev(ev, _HE_LAST_NOTFOUND);
+		return (-1);
+	}
+
+	return (0);
+}
+
+
+/* history_def_next():
+ *	Default function to return the next event in the history.
+ */
+private int
+history_def_next(ptr_t p, HistEvent *ev)
+{
+	history_t *h = (history_t *) p;
+
+	if (h->cursor == &h->list) {
+		he_seterrev(ev, _HE_EMPTY_LIST);
+		return (-1);
+	}
+
+	if (h->cursor->next == &h->list) {
+		he_seterrev(ev, _HE_END_REACHED);
+		return (-1);
+	}
+
+        h->cursor = h->cursor->next;
+        *ev = h->cursor->ev;
+
+	return (0);
+}
+
+
+/* history_def_prev():
+ *	Default function to return the previous event in the history.
+ */
+private int
+history_def_prev(ptr_t p, HistEvent *ev)
+{
+	history_t *h = (history_t *) p;
+
+	if (h->cursor == &h->list) {
+		he_seterrev(ev,
+		    (h->cur > 0) ? _HE_END_REACHED : _HE_EMPTY_LIST);
+		return (-1);
+	}
+
+	if (h->cursor->prev == &h->list) {
+		he_seterrev(ev, _HE_START_REACHED);
+		return (-1);
+	}
+
+        h->cursor = h->cursor->prev;
+        *ev = h->cursor->ev;
+
+	return (0);
+}
+
+
+/* history_def_curr():
+ *	Default function to return the current event in the history.
+ */
+private int
+history_def_curr(ptr_t p, HistEvent *ev)
+{
+	history_t *h = (history_t *) p;
+
+	if (h->cursor != &h->list)
+		*ev = h->cursor->ev;
+	else {
+		he_seterrev(ev,
+		    (h->cur > 0) ? _HE_CURR_INVALID : _HE_EMPTY_LIST);
+		return (-1);
+	}
+
+	return (0);
+}
+
+
+/* history_def_set():
+ *	Default function to set the current event in the history to the
+ *	given one.
+ */
+private int
+history_def_set(ptr_t p, HistEvent *ev, const int n)
+{
+	history_t *h = (history_t *) p;
+
+	if (h->cur == 0) {
+		he_seterrev(ev, _HE_EMPTY_LIST);
+		return (-1);
+	}
+	if (h->cursor == &h->list || h->cursor->ev.num != n) {
+		for (h->cursor = h->list.next; h->cursor != &h->list;
+		    h->cursor = h->cursor->next)
+			if (h->cursor->ev.num == n)
+				break;
+	}
+	if (h->cursor == &h->list) {
+		he_seterrev(ev, _HE_NOT_FOUND);
+		return (-1);
+	}
+	return (0);
+}
+
+
+/* history_def_add():
+ *	Append string to element
+ */
+private int
+history_def_add(ptr_t p, HistEvent *ev, const char *str)
+{
+	history_t *h = (history_t *) p;
+	size_t len;
+	char *s;
+	HistEventPrivate *evp = (void *)&h->cursor->ev;
+
+	if (h->cursor == &h->list)
+		return (history_def_enter(p, ev, str));
+	len = strlen(evp->str) + strlen(str) + 1;
+	s = (char *) h_malloc(len);
+	if (s == NULL) {
+		he_seterrev(ev, _HE_MALLOC_FAILED);
+		return (-1);
+	}
+	(void) strlcpy(s, h->cursor->ev.str, len);
+	(void) strlcat(s, str, len);
+	h_free((ptr_t)evp->str);
+	evp->str = s;
+	*ev = h->cursor->ev;
+	return (0);
+}
+
+
+/* history_def_del():
+ *	Delete element hp of the h list
+ */
+/* ARGSUSED */
+private int
+history_def_del(ptr_t p, HistEvent *ev __attribute__((__unused__)),
+    const int num)
+{
+	history_t *h = (history_t *) p;
+	if (history_def_set(h, ev, num) != 0)
+		return (-1);
+	ev->str = strdup(h->cursor->ev.str);
+	ev->num = h->cursor->ev.num;
+	history_def_delete(h, ev, h->cursor);
+	return (0);
+}
+
+
+/* history_def_delete():
+ *	Delete element hp of the h list
+ */
+/* ARGSUSED */
+private void
+history_def_delete(history_t *h, 
+		   HistEvent *ev __attribute__((__unused__)), hentry_t *hp)
+{
+	HistEventPrivate *evp = (void *)&hp->ev;
+	if (hp == &h->list)
+		abort();
+	if (h->cursor == hp)
+		h->cursor = hp->prev;
+	hp->prev->next = hp->next;
+	hp->next->prev = hp->prev;
+	h_free((ptr_t) evp->str);
+	h_free(hp);
+	h->cur--;
+}
+
+
+/* history_def_insert():
+ *	Insert element with string str in the h list
+ */
+private int
+history_def_insert(history_t *h, HistEvent *ev, const char *str)
+{
+
+	h->cursor = (hentry_t *) h_malloc(sizeof(hentry_t));
+	if (h->cursor == NULL)
+		goto oomem;
+	if ((h->cursor->ev.str = h_strdup(str)) == NULL) {
+		h_free((ptr_t)h->cursor);
+		goto oomem;
+	}
+	h->cursor->ev.num = ++h->eventid;
+	h->cursor->next = h->list.next;
+	h->cursor->prev = &h->list;
+	h->list.next->prev = h->cursor;
+	h->list.next = h->cursor;
+	h->cur++;
+
+	*ev = h->cursor->ev;
+	return (0);
+oomem:
+	he_seterrev(ev, _HE_MALLOC_FAILED);
+	return (-1);
+}
+
+
+/* history_def_enter():
+ *	Default function to enter an item in the history
+ */
+private int
+history_def_enter(ptr_t p, HistEvent *ev, const char *str)
+{
+	history_t *h = (history_t *) p;
+
+	if ((h->flags & H_UNIQUE) != 0 && h->list.next != &h->list &&
+	    strcmp(h->list.next->ev.str, str) == 0)
+	    return (0); 
+
+	if (history_def_insert(h, ev, str) == -1)
+		return (-1);	/* error, keep error message */
+
+	/*
+         * Always keep at least one entry.
+         * This way we don't have to check for the empty list.
+         */
+	while (h->cur > h->max && h->cur > 0)
+		history_def_delete(h, ev, h->list.prev);
+
+	return (1);
+}
+
+
+/* history_def_init():
+ *	Default history initialization function
+ */
+/* ARGSUSED */
+private int
+history_def_init(ptr_t *p, HistEvent *ev __attribute__((__unused__)), int n)
+{
+	history_t *h = (history_t *) h_malloc(sizeof(history_t));
+	if (h == NULL)
+		return -1;
+
+	if (n <= 0)
+		n = 0;
+	h->eventid = 0;
+	h->cur = 0;
+	h->max = n;
+	h->list.next = h->list.prev = &h->list;
+	h->list.ev.str = NULL;
+	h->list.ev.num = 0;
+	h->cursor = &h->list;
+	h->flags = 0;
+	*p = (ptr_t) h;
+	return 0;
+}
+
+
+/* history_def_clear():
+ *	Default history cleanup function
+ */
+private void
+history_def_clear(ptr_t p, HistEvent *ev)
+{
+	history_t *h = (history_t *) p;
+
+	while (h->list.prev != &h->list)
+		history_def_delete(h, ev, h->list.prev);
+	h->eventid = 0;
+	h->cur = 0;
+}
+
+
+
+
+/************************************************************************/
+
+/* history_init():
+ *	Initialization function.
+ */
+public History *
+history_init(void)
+{
+	HistEvent ev;
+	History *h = (History *) h_malloc(sizeof(History));
+	if (h == NULL)
+		return NULL;
+
+	if (history_def_init(&h->h_ref, &ev, 0) == -1) {
+		h_free((ptr_t)h);
+		return NULL;
+	}
+	h->h_ent = -1;
+	h->h_next = history_def_next;
+	h->h_first = history_def_first;
+	h->h_last = history_def_last;
+	h->h_prev = history_def_prev;
+	h->h_curr = history_def_curr;
+	h->h_set = history_def_set;
+	h->h_clear = history_def_clear;
+	h->h_enter = history_def_enter;
+	h->h_add = history_def_add;
+	h->h_del = history_def_del;
+
+	return (h);
+}
+
+
+/* history_end():
+ *	clean up history;
+ */
+public void
+history_end(History *h)
+{
+	HistEvent ev;
+
+	if (h->h_next == history_def_next)
+		history_def_clear(h->h_ref, &ev);
+	h_free(h->h_ref);
+	h_free(h);
+}
+
+
+
+/* history_setsize():
+ *	Set history number of events
+ */
+private int
+history_setsize(History *h, HistEvent *ev, int num)
+{
+
+	if (h->h_next != history_def_next) {
+		he_seterrev(ev, _HE_NOT_ALLOWED);
+		return (-1);
+	}
+	if (num < 0) {
+		he_seterrev(ev, _HE_BAD_PARAM);
+		return (-1);
+	}
+	history_def_setsize(h->h_ref, num);
+	return (0);
+}
+
+
+/* history_getsize():
+ *      Get number of events currently in history
+ */
+private int
+history_getsize(History *h, HistEvent *ev)
+{
+	if (h->h_next != history_def_next) {
+		he_seterrev(ev, _HE_NOT_ALLOWED);
+		return (-1);
+	}
+	ev->num = history_def_getsize(h->h_ref);
+	if (ev->num < -1) {
+		he_seterrev(ev, _HE_SIZE_NEGATIVE);
+		return (-1);
+	}
+	return (0);
+}
+
+
+/* history_setunique():
+ *	Set if adjacent equal events should not be entered in history.
+ */
+private int
+history_setunique(History *h, HistEvent *ev, int uni)
+{
+
+	if (h->h_next != history_def_next) {
+		he_seterrev(ev, _HE_NOT_ALLOWED);
+		return (-1);
+	}
+	history_def_setunique(h->h_ref, uni);
+	return (0);
+}
+
+
+/* history_getunique():
+ *	Get if adjacent equal events should not be entered in history.
+ */
+private int
+history_getunique(History *h, HistEvent *ev)
+{
+	if (h->h_next != history_def_next) {
+		he_seterrev(ev, _HE_NOT_ALLOWED);
+		return (-1);
+	}
+	ev->num = history_def_getunique(h->h_ref);
+	return (0);
+}
+
+
+/* history_set_fun():
+ *	Set history functions
+ */
+private int
+history_set_fun(History *h, History *nh)
+{
+	HistEvent ev;
+
+	if (nh->h_first == NULL || nh->h_next == NULL || nh->h_last == NULL ||
+	    nh->h_prev == NULL || nh->h_curr == NULL || nh->h_set == NULL ||
+	    nh->h_enter == NULL || nh->h_add == NULL || nh->h_clear == NULL ||
+	    nh->h_del == NULL || nh->h_ref == NULL) {
+		if (h->h_next != history_def_next) {
+			history_def_init(&h->h_ref, &ev, 0);
+			h->h_first = history_def_first;
+			h->h_next = history_def_next;
+			h->h_last = history_def_last;
+			h->h_prev = history_def_prev;
+			h->h_curr = history_def_curr;
+			h->h_set = history_def_set;
+			h->h_clear = history_def_clear;
+			h->h_enter = history_def_enter;
+			h->h_add = history_def_add;
+			h->h_del = history_def_del;
+		}
+		return (-1);
+	}
+	if (h->h_next == history_def_next)
+		history_def_clear(h->h_ref, &ev);
+
+	h->h_ent = -1;
+	h->h_first = nh->h_first;
+	h->h_next = nh->h_next;
+	h->h_last = nh->h_last;
+	h->h_prev = nh->h_prev;
+	h->h_curr = nh->h_curr;
+	h->h_set = nh->h_set;
+	h->h_clear = nh->h_clear;
+	h->h_enter = nh->h_enter;
+	h->h_add = nh->h_add;
+	h->h_del = nh->h_del;
+
+	return (0);
+}
+
+
+/* history_load():
+ *	History load function
+ */
+private int
+history_load(History *h, const char *fname)
+{
+	FILE *fp;
+	char *line;
+	size_t sz, max_size;
+	char *ptr;
+	int i = -1;
+	HistEvent ev;
+
+	if ((fp = fopen(fname, "r")) == NULL)
+		return (i);
+
+	if ((line = fgetln(fp, &sz)) == NULL)
+		goto done;
+
+	if (strncmp(line, hist_cookie, sz) != 0)
+		goto done;
+
+	ptr = h_malloc(max_size = 1024);
+	if (ptr == NULL)
+		goto done;
+	for (i = 0; (line = fgetln(fp, &sz)) != NULL; i++) {
+		char c = line[sz];
+
+		if (sz != 0 && line[sz - 1] == '\n')
+			line[--sz] = '\0';
+		else
+			line[sz] = '\0';
+
+		if (max_size < sz) {
+			char *nptr;
+			max_size = (sz + 1024) & ~1023;
+			nptr = h_realloc(ptr, max_size);
+			if (nptr == NULL) {
+				i = -1;
+				goto oomem;
+			}
+			ptr = nptr;
+		}
+		(void) strunvis(ptr, line);
+		line[sz] = c;
+		if (HENTER(h, &ev, ptr) == -1) {
+			h_free((ptr_t)ptr);
+			return -1;
+		}
+	}
+oomem:
+	h_free((ptr_t)ptr);
+done:
+	(void) fclose(fp);
+	return (i);
+}
+
+
+/* history_save():
+ *	History save function
+ */
+private int
+history_save(History *h, const char *fname)
+{
+	FILE *fp;
+	HistEvent ev;
+	int i = -1, retval;
+	size_t len, max_size;
+	char *ptr;
+
+	if ((fp = fopen(fname, "w")) == NULL)
+		return (-1);
+
+	if (fchmod(fileno(fp), S_IRUSR|S_IWUSR) == -1)
+		goto done;
+	if (fputs(hist_cookie, fp) == EOF)
+		goto done;
+	ptr = h_malloc(max_size = 1024);
+	if (ptr == NULL)
+		goto done;
+	for (i = 0, retval = HLAST(h, &ev);
+	    retval != -1;
+	    retval = HPREV(h, &ev), i++) {
+		len = strlen(ev.str) * 4;
+		if (len >= max_size) {
+			char *nptr;
+			max_size = (len + 1024) & ~1023;
+			nptr = h_realloc(ptr, max_size);
+			if (nptr == NULL) {
+				i = -1;
+				goto oomem;
+			}
+			ptr = nptr;
+		}
+		(void) strvis(ptr, ev.str, VIS_WHITE);
+		(void) fprintf(fp, "%s\n", ptr);
+	}
+oomem:
+	h_free((ptr_t)ptr);
+done:
+	(void) fclose(fp);
+	return (i);
+}
+
+
+/* history_prev_event():
+ *	Find the previous event, with number given
+ */
+private int
+history_prev_event(History *h, HistEvent *ev, int num)
+{
+	int retval;
+
+	for (retval = HCURR(h, ev); retval != -1; retval = HPREV(h, ev))
+		if (ev->num == num)
+			return (0);
+
+	he_seterrev(ev, _HE_NOT_FOUND);
+	return (-1);
+}
+
+
+/* history_next_event():
+ *	Find the next event, with number given
+ */
+private int
+history_next_event(History *h, HistEvent *ev, int num)
+{
+	int retval;
+
+	for (retval = HCURR(h, ev); retval != -1; retval = HNEXT(h, ev))
+		if (ev->num == num)
+			return (0);
+
+	he_seterrev(ev, _HE_NOT_FOUND);
+	return (-1);
+}
+
+
+/* history_prev_string():
+ *	Find the previous event beginning with string
+ */
+private int
+history_prev_string(History *h, HistEvent *ev, const char *str)
+{
+	size_t len = strlen(str);
+	int retval;
+
+	for (retval = HCURR(h, ev); retval != -1; retval = HNEXT(h, ev))
+		if (strncmp(str, ev->str, len) == 0)
+			return (0);
+
+	he_seterrev(ev, _HE_NOT_FOUND);
+	return (-1);
+}
+
+
+/* history_next_string():
+ *	Find the next event beginning with string
+ */
+private int
+history_next_string(History *h, HistEvent *ev, const char *str)
+{
+	size_t len = strlen(str);
+	int retval;
+
+	for (retval = HCURR(h, ev); retval != -1; retval = HPREV(h, ev))
+		if (strncmp(str, ev->str, len) == 0)
+			return (0);
+
+	he_seterrev(ev, _HE_NOT_FOUND);
+	return (-1);
+}
+
+
+/* history():
+ *	User interface to history functions.
+ */
+int
+history(History *h, HistEvent *ev, int fun, ...)
+{
+	va_list va;
+	const char *str;
+	int retval;
+
+	va_start(va, fun);
+
+	he_seterrev(ev, _HE_OK);
+
+	switch (fun) {
+	case H_GETSIZE:
+		retval = history_getsize(h, ev);
+		break;
+
+	case H_SETSIZE:
+		retval = history_setsize(h, ev, va_arg(va, int));
+		break;
+
+	case H_GETUNIQUE:
+		retval = history_getunique(h, ev);
+		break;
+
+	case H_SETUNIQUE:
+		retval = history_setunique(h, ev, va_arg(va, int));
+		break;
+
+	case H_ADD:
+		str = va_arg(va, const char *);
+		retval = HADD(h, ev, str);
+		break;
+
+	case H_DEL:
+		retval = HDEL(h, ev, va_arg(va, const int));
+		break;
+
+	case H_ENTER:
+		str = va_arg(va, const char *);
+		if ((retval = HENTER(h, ev, str)) != -1)
+			h->h_ent = ev->num;
+		break;
+
+	case H_APPEND:
+		str = va_arg(va, const char *);
+		if ((retval = HSET(h, ev, h->h_ent)) != -1)
+			retval = HADD(h, ev, str);
+		break;
+
+	case H_FIRST:
+		retval = HFIRST(h, ev);
+		break;
+
+	case H_NEXT:
+		retval = HNEXT(h, ev);
+		break;
+
+	case H_LAST:
+		retval = HLAST(h, ev);
+		break;
+
+	case H_PREV:
+		retval = HPREV(h, ev);
+		break;
+
+	case H_CURR:
+		retval = HCURR(h, ev);
+		break;
+
+	case H_SET:
+		retval = HSET(h, ev, va_arg(va, const int));
+		break;
+
+	case H_CLEAR:
+		HCLEAR(h, ev);
+		retval = 0;
+		break;
+
+	case H_LOAD:
+		retval = history_load(h, va_arg(va, const char *));
+		if (retval == -1)
+			he_seterrev(ev, _HE_HIST_READ);
+		break;
+
+	case H_SAVE:
+		retval = history_save(h, va_arg(va, const char *));
+		if (retval == -1)
+			he_seterrev(ev, _HE_HIST_WRITE);
+		break;
+
+	case H_PREV_EVENT:
+		retval = history_prev_event(h, ev, va_arg(va, int));
+		break;
+
+	case H_NEXT_EVENT:
+		retval = history_next_event(h, ev, va_arg(va, int));
+		break;
+
+	case H_PREV_STR:
+		retval = history_prev_string(h, ev, va_arg(va, const char *));
+		break;
+
+	case H_NEXT_STR:
+		retval = history_next_string(h, ev, va_arg(va, const char *));
+		break;
+
+	case H_FUNC:
+	{
+		History hf;
+
+		hf.h_ref = va_arg(va, ptr_t);
+		h->h_ent = -1;
+		hf.h_first = va_arg(va, history_gfun_t);
+		hf.h_next = va_arg(va, history_gfun_t);
+		hf.h_last = va_arg(va, history_gfun_t);
+		hf.h_prev = va_arg(va, history_gfun_t);
+		hf.h_curr = va_arg(va, history_gfun_t);
+		hf.h_set = va_arg(va, history_sfun_t);
+		hf.h_clear = va_arg(va, history_vfun_t);
+		hf.h_enter = va_arg(va, history_efun_t);
+		hf.h_add = va_arg(va, history_efun_t);
+		hf.h_del = va_arg(va, history_sfun_t);
+
+		if ((retval = history_set_fun(h, &hf)) == -1)
+			he_seterrev(ev, _HE_PARAM_MISSING);
+		break;
+	}
+
+	case H_END:
+		history_end(h);
+		retval = 0;
+		break;
+
+	default:
+		retval = -1;
+		he_seterrev(ev, _HE_UNKNOWN);
+		break;
+	}
+	va_end(va);
+	return (retval);
+}
diff --git a/frontend/libedit/key.c b/frontend/libedit/key.c
new file mode 100644
index 0000000..099434e
--- /dev/null
+++ b/frontend/libedit/key.c
@@ -0,0 +1,700 @@
+/*	$NetBSD: key.c,v 1.19 2006/03/23 20:22:51 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * key.c: This module contains the procedures for maintaining
+ *	  the extended-key map.
+ *
+ *      An extended-key (key) is a sequence of keystrokes introduced
+ *	with a sequence introducer and consisting of an arbitrary
+ *	number of characters.  This module maintains a map (the el->el_key.map)
+ *	to convert these extended-key sequences into input strs
+ *	(XK_STR), editor functions (XK_CMD), or unix commands (XK_EXE).
+ *
+ *      Warning:
+ *	  If key is a substr of some other keys, then the longer
+ *	  keys are lost!!  That is, if the keys "abcd" and "abcef"
+ *	  are in el->el_key.map, adding the key "abc" will cause the first two
+ *	  definitions to be lost.
+ *
+ *      Restrictions:
+ *      -------------
+ *      1) It is not possible to have one key that is a
+ *	   substr of another.
+ */
+#include <string.h>
+#include <stdlib.h>
+
+#include "el.h"
+
+/*
+ * The Nodes of the el->el_key.map.  The el->el_key.map is a linked list
+ * of these node elements
+ */
+struct key_node_t {
+	char		ch;		/* single character of key 	 */
+	int		type;		/* node type			 */
+	key_value_t	val;		/* command code or pointer to str,  */
+					/* if this is a leaf 		 */
+	struct key_node_t *next;	/* ptr to next char of this key  */
+	struct key_node_t *sibling;	/* ptr to another key with same prefix*/
+};
+
+private int		 node_trav(EditLine *, key_node_t *, char *,
+    key_value_t *);
+private int		 node__try(EditLine *, key_node_t *, const char *,
+    key_value_t *, int);
+private key_node_t	*node__get(int);
+private void		 node__free(key_node_t *);
+private void		 node__put(EditLine *, key_node_t *);
+private int		 node__delete(EditLine *, key_node_t **, const char *);
+private int		 node_lookup(EditLine *, const char *, key_node_t *,
+    int);
+private int		 node_enum(EditLine *, key_node_t *, int);
+
+#define	KEY_BUFSIZ	EL_BUFSIZ
+
+
+/* key_init():
+ *	Initialize the key maps
+ */
+protected int
+key_init(EditLine *el)
+{
+
+	el->el_key.buf = (char *) el_malloc(KEY_BUFSIZ);
+	if (el->el_key.buf == NULL)
+		return (-1);
+	el->el_key.map = NULL;
+	key_reset(el);
+	return (0);
+}
+
+/* key_end():
+ *	Free the key maps
+ */
+protected void
+key_end(EditLine *el)
+{
+
+	el_free((ptr_t) el->el_key.buf);
+	el->el_key.buf = NULL;
+	node__free(el->el_key.map);
+}
+
+
+/* key_map_cmd():
+ *	Associate cmd with a key value
+ */
+protected key_value_t *
+key_map_cmd(EditLine *el, int cmd)
+{
+
+	el->el_key.val.cmd = (el_action_t) cmd;
+	return (&el->el_key.val);
+}
+
+
+/* key_map_str():
+ *	Associate str with a key value
+ */
+protected key_value_t *
+key_map_str(EditLine *el, char *str)
+{
+
+	el->el_key.val.str = str;
+	return (&el->el_key.val);
+}
+
+
+/* key_reset():
+ *	Takes all nodes on el->el_key.map and puts them on free list.  Then
+ *	initializes el->el_key.map with arrow keys
+ *	[Always bind the ansi arrow keys?]
+ */
+protected void
+key_reset(EditLine *el)
+{
+
+	node__put(el, el->el_key.map);
+	el->el_key.map = NULL;
+	return;
+}
+
+
+/* key_get():
+ *	Calls the recursive function with entry point el->el_key.map
+ *      Looks up *ch in map and then reads characters until a
+ *      complete match is found or a mismatch occurs. Returns the
+ *      type of the match found (XK_STR, XK_CMD, or XK_EXE).
+ *      Returns NULL in val.str and XK_STR for no match.
+ *      The last character read is returned in *ch.
+ */
+protected int
+key_get(EditLine *el, char *ch, key_value_t *val)
+{
+
+	return (node_trav(el, el->el_key.map, ch, val));
+}
+
+
+/* key_add():
+ *      Adds key to the el->el_key.map and associates the value in val with it.
+ *      If key is already is in el->el_key.map, the new code is applied to the
+ *      existing key. Ntype specifies if code is a command, an
+ *      out str or a unix command.
+ */
+protected void
+key_add(EditLine *el, const char *key, key_value_t *val, int ntype)
+{
+
+	if (key[0] == '\0') {
+		(void) fprintf(el->el_errfile,
+		    "key_add: Null extended-key not allowed.\n");
+		return;
+	}
+	if (ntype == XK_CMD && val->cmd == ED_SEQUENCE_LEAD_IN) {
+		(void) fprintf(el->el_errfile,
+		    "key_add: sequence-lead-in command not allowed\n");
+		return;
+	}
+	if (el->el_key.map == NULL)
+		/* tree is initially empty.  Set up new node to match key[0] */
+		el->el_key.map = node__get(key[0]);
+			/* it is properly initialized */
+
+	/* Now recurse through el->el_key.map */
+	(void) node__try(el, el->el_key.map, key, val, ntype);
+	return;
+}
+
+
+/* key_clear():
+ *
+ */
+protected void
+key_clear(EditLine *el, el_action_t *map, const char *in)
+{
+
+	if ((map[(unsigned char)*in] == ED_SEQUENCE_LEAD_IN) &&
+	    ((map == el->el_map.key &&
+	    el->el_map.alt[(unsigned char)*in] != ED_SEQUENCE_LEAD_IN) ||
+	    (map == el->el_map.alt &&
+	    el->el_map.key[(unsigned char)*in] != ED_SEQUENCE_LEAD_IN)))
+		(void) key_delete(el, in);
+}
+
+
+/* key_delete():
+ *      Delete the key and all longer keys staring with key, if
+ *      they exists.
+ */
+protected int
+key_delete(EditLine *el, const char *key)
+{
+
+	if (key[0] == '\0') {
+		(void) fprintf(el->el_errfile,
+		    "key_delete: Null extended-key not allowed.\n");
+		return (-1);
+	}
+	if (el->el_key.map == NULL)
+		return (0);
+
+	(void) node__delete(el, &el->el_key.map, key);
+	return (0);
+}
+
+
+/* key_print():
+ *	Print the binding associated with key key.
+ *	Print entire el->el_key.map if null
+ */
+protected void
+key_print(EditLine *el, const char *key)
+{
+
+	/* do nothing if el->el_key.map is empty and null key specified */
+	if (el->el_key.map == NULL && *key == 0)
+		return;
+
+	el->el_key.buf[0] = '"';
+	if (node_lookup(el, key, el->el_key.map, 1) <= -1)
+		/* key is not bound */
+		(void) fprintf(el->el_errfile, "Unbound extended key \"%s\"\n",
+		    key);
+	return;
+}
+
+
+/* node_trav():
+ *	recursively traverses node in tree until match or mismatch is
+ * 	found.  May read in more characters.
+ */
+private int
+node_trav(EditLine *el, key_node_t *ptr, char *ch, key_value_t *val)
+{
+
+	if (ptr->ch == *ch) {
+		/* match found */
+		if (ptr->next) {
+			/* key not complete so get next char */
+			if (el_getc(el, ch) != 1) {	/* if EOF or error */
+				val->cmd = ED_END_OF_FILE;
+				return (XK_CMD);
+				/* PWP: Pretend we just read an end-of-file */
+			}
+			return (node_trav(el, ptr->next, ch, val));
+		} else {
+			*val = ptr->val;
+			if (ptr->type != XK_CMD)
+				*ch = '\0';
+			return (ptr->type);
+		}
+	} else {
+		/* no match found here */
+		if (ptr->sibling) {
+			/* try next sibling */
+			return (node_trav(el, ptr->sibling, ch, val));
+		} else {
+			/* no next sibling -- mismatch */
+			val->str = NULL;
+			return (XK_STR);
+		}
+	}
+}
+
+
+/* node__try():
+ * 	Find a node that matches *str or allocate a new one
+ */
+private int
+node__try(EditLine *el, key_node_t *ptr, const char *str, key_value_t *val, int ntype)
+{
+
+	if (ptr->ch != *str) {
+		key_node_t *xm;
+
+		for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
+			if (xm->sibling->ch == *str)
+				break;
+		if (xm->sibling == NULL)
+			xm->sibling = node__get(*str);	/* setup new node */
+		ptr = xm->sibling;
+	}
+	if (*++str == '\0') {
+		/* we're there */
+		if (ptr->next != NULL) {
+			node__put(el, ptr->next);
+				/* lose longer keys with this prefix */
+			ptr->next = NULL;
+		}
+		switch (ptr->type) {
+		case XK_CMD:
+		case XK_NOD:
+			break;
+		case XK_STR:
+		case XK_EXE:
+			if (ptr->val.str)
+				el_free((ptr_t) ptr->val.str);
+			break;
+		default:
+			EL_ABORT((el->el_errfile, "Bad XK_ type %d\n",
+			    ptr->type));
+			break;
+		}
+
+		switch (ptr->type = ntype) {
+		case XK_CMD:
+			ptr->val = *val;
+			break;
+		case XK_STR:
+		case XK_EXE:
+			if ((ptr->val.str = el_strdup(val->str)) == NULL)
+				return -1;
+			break;
+		default:
+			EL_ABORT((el->el_errfile, "Bad XK_ type %d\n", ntype));
+			break;
+		}
+	} else {
+		/* still more chars to go */
+		if (ptr->next == NULL)
+			ptr->next = node__get(*str);	/* setup new node */
+		(void) node__try(el, ptr->next, str, val, ntype);
+	}
+	return (0);
+}
+
+
+/* node__delete():
+ *	Delete node that matches str
+ */
+private int
+node__delete(EditLine *el, key_node_t **inptr, const char *str)
+{
+	key_node_t *ptr;
+	key_node_t *prev_ptr = NULL;
+
+	ptr = *inptr;
+
+	if (ptr->ch != *str) {
+		key_node_t *xm;
+
+		for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
+			if (xm->sibling->ch == *str)
+				break;
+		if (xm->sibling == NULL)
+			return (0);
+		prev_ptr = xm;
+		ptr = xm->sibling;
+	}
+	if (*++str == '\0') {
+		/* we're there */
+		if (prev_ptr == NULL)
+			*inptr = ptr->sibling;
+		else
+			prev_ptr->sibling = ptr->sibling;
+		ptr->sibling = NULL;
+		node__put(el, ptr);
+		return (1);
+	} else if (ptr->next != NULL &&
+	    node__delete(el, &ptr->next, str) == 1) {
+		if (ptr->next != NULL)
+			return (0);
+		if (prev_ptr == NULL)
+			*inptr = ptr->sibling;
+		else
+			prev_ptr->sibling = ptr->sibling;
+		ptr->sibling = NULL;
+		node__put(el, ptr);
+		return (1);
+	} else {
+		return (0);
+	}
+}
+
+
+/* node__put():
+ *	Puts a tree of nodes onto free list using free(3).
+ */
+private void
+node__put(EditLine *el, key_node_t *ptr)
+{
+	if (ptr == NULL)
+		return;
+
+	if (ptr->next != NULL) {
+		node__put(el, ptr->next);
+		ptr->next = NULL;
+	}
+	node__put(el, ptr->sibling);
+
+	switch (ptr->type) {
+	case XK_CMD:
+	case XK_NOD:
+		break;
+	case XK_EXE:
+	case XK_STR:
+		if (ptr->val.str != NULL)
+			el_free((ptr_t) ptr->val.str);
+		break;
+	default:
+		EL_ABORT((el->el_errfile, "Bad XK_ type %d\n", ptr->type));
+		break;
+	}
+	el_free((ptr_t) ptr);
+}
+
+
+/* node__get():
+ *	Returns pointer to a key_node_t for ch.
+ */
+private key_node_t *
+node__get(int ch)
+{
+	key_node_t *ptr;
+
+	ptr = (key_node_t *) el_malloc((size_t) sizeof(key_node_t));
+	if (ptr == NULL)
+		return NULL;
+	ptr->ch = ch;
+	ptr->type = XK_NOD;
+	ptr->val.str = NULL;
+	ptr->next = NULL;
+	ptr->sibling = NULL;
+	return (ptr);
+}
+
+private void
+node__free(key_node_t *k)
+{
+	if (k == NULL)
+		return;
+	node__free(k->sibling);
+	node__free(k->next);
+	el_free((ptr_t) k);
+}
+
+/* node_lookup():
+ *	look for the str starting at node ptr.
+ *	Print if last node
+ */
+private int
+node_lookup(EditLine *el, const char *str, key_node_t *ptr, int cnt)
+{
+	int ncnt;
+
+	if (ptr == NULL)
+		return (-1);	/* cannot have null ptr */
+
+	if (*str == 0) {
+		/* no more chars in str.  node_enum from here. */
+		(void) node_enum(el, ptr, cnt);
+		return (0);
+	} else {
+		/* If match put this char into el->el_key.buf.  Recurse */
+		if (ptr->ch == *str) {
+			/* match found */
+			ncnt = key__decode_char(el->el_key.buf, KEY_BUFSIZ, cnt,
+			    (unsigned char) ptr->ch);
+			if (ptr->next != NULL)
+				/* not yet at leaf */
+				return (node_lookup(el, str + 1, ptr->next,
+				    ncnt + 1));
+			else {
+			    /* next node is null so key should be complete */
+				if (str[1] == 0) {
+					el->el_key.buf[ncnt + 1] = '"';
+					el->el_key.buf[ncnt + 2] = '\0';
+					key_kprint(el, el->el_key.buf,
+					    &ptr->val, ptr->type);
+					return (0);
+				} else
+					return (-1);
+					/* mismatch -- str still has chars */
+			}
+		} else {
+			/* no match found try sibling */
+			if (ptr->sibling)
+				return (node_lookup(el, str, ptr->sibling,
+				    cnt));
+			else
+				return (-1);
+		}
+	}
+}
+
+
+/* node_enum():
+ *	Traverse the node printing the characters it is bound in buffer
+ */
+private int
+node_enum(EditLine *el, key_node_t *ptr, int cnt)
+{
+	int ncnt;
+
+	if (cnt >= KEY_BUFSIZ - 5) {	/* buffer too small */
+		el->el_key.buf[++cnt] = '"';
+		el->el_key.buf[++cnt] = '\0';
+		(void) fprintf(el->el_errfile,
+		    "Some extended keys too long for internal print buffer");
+		(void) fprintf(el->el_errfile, " \"%s...\"\n", el->el_key.buf);
+		return (0);
+	}
+	if (ptr == NULL) {
+#ifdef DEBUG_EDIT
+		(void) fprintf(el->el_errfile,
+		    "node_enum: BUG!! Null ptr passed\n!");
+#endif
+		return (-1);
+	}
+	/* put this char at end of str */
+	ncnt = key__decode_char(el->el_key.buf, KEY_BUFSIZ, cnt,
+	    (unsigned char)ptr->ch);
+	if (ptr->next == NULL) {
+		/* print this key and function */
+		el->el_key.buf[ncnt + 1] = '"';
+		el->el_key.buf[ncnt + 2] = '\0';
+		key_kprint(el, el->el_key.buf, &ptr->val, ptr->type);
+	} else
+		(void) node_enum(el, ptr->next, ncnt + 1);
+
+	/* go to sibling if there is one */
+	if (ptr->sibling)
+		(void) node_enum(el, ptr->sibling, cnt);
+	return (0);
+}
+
+
+/* key_kprint():
+ *	Print the specified key and its associated
+ *	function specified by val
+ */
+protected void
+key_kprint(EditLine *el, const char *key, key_value_t *val, int ntype)
+{
+	el_bindings_t *fp;
+	char unparsbuf[EL_BUFSIZ];
+	static const char fmt[] = "%-15s->  %s\n";
+
+	if (val != NULL)
+		switch (ntype) {
+		case XK_STR:
+		case XK_EXE:
+			(void) key__decode_str(val->str, unparsbuf,
+			    sizeof(unparsbuf), 
+			    ntype == XK_STR ? "\"\"" : "[]");
+			(void) fprintf(el->el_outfile, fmt, key, unparsbuf);
+			break;
+		case XK_CMD:
+			for (fp = el->el_map.help; fp->name; fp++)
+				if (val->cmd == fp->func) {
+					(void) fprintf(el->el_outfile, fmt,
+					    key, fp->name);
+					break;
+				}
+#ifdef DEBUG_KEY
+			if (fp->name == NULL)
+				(void) fprintf(el->el_outfile,
+				    "BUG! Command not found.\n");
+#endif
+
+			break;
+		default:
+			EL_ABORT((el->el_errfile, "Bad XK_ type %d\n", ntype));
+			break;
+		}
+	else
+		(void) fprintf(el->el_outfile, fmt, key, "no input");
+}
+
+
+#define ADDC(c) \
+	if (b < eb) \
+		*b++ = c; \
+	else \
+		b++
+/* key__decode_char():
+ *	Put a printable form of char in buf.
+ */
+protected int
+key__decode_char(char *buf, int cnt, int off, int ch)
+{
+	char *sb = buf + off;
+	char *eb = buf + cnt;
+	char *b = sb;
+	if (ch == 0) {
+		ADDC('^');
+		ADDC('@');
+		return b - sb;
+	}
+	if (iscntrl(ch)) {
+		ADDC('^');
+		if (ch == '\177')
+			ADDC('?');
+		else
+			ADDC(ch | 0100);
+	} else if (ch == '^') {
+		ADDC('\\');
+		ADDC('^');
+	} else if (ch == '\\') {
+		ADDC('\\');
+		ADDC('\\');
+	} else if (ch == ' ' || (isprint(ch) && !isspace(ch))) {
+		ADDC(ch);
+	} else {
+		ADDC('\\');
+		ADDC((((unsigned int) ch >> 6) & 7) + '0');
+		ADDC((((unsigned int) ch >> 3) & 7) + '0');
+		ADDC((ch & 7) + '0');
+	}
+	return b - sb;
+}
+
+
+/* key__decode_str():
+ *	Make a printable version of the ey
+ */
+protected int
+key__decode_str(const char *str, char *buf, int len, const char *sep)
+{
+	char *b = buf, *eb = b + len;
+	const char *p;
+
+	b = buf;
+	if (sep[0] != '\0') {
+		ADDC(sep[0]);
+	}
+	if (*str == '\0') {
+		ADDC('^');
+		ADDC('@');
+		if (sep[0] != '\0' && sep[1] != '\0') {
+			ADDC(sep[1]);
+		}
+		goto done;
+	}
+	for (p = str; *p != 0; p++) {
+		if (iscntrl((unsigned char) *p)) {
+			ADDC('^');
+			if (*p == '\177') {
+				ADDC('?');
+			} else {
+				ADDC(*p | 0100);
+			}
+		} else if (*p == '^' || *p == '\\') {
+			ADDC('\\');
+			ADDC(*p);
+		} else if (*p == ' ' || (isprint((unsigned char) *p) &&
+			!isspace((unsigned char) *p))) {
+			ADDC(*p);
+		} else {
+			ADDC('\\');
+			ADDC((((unsigned int) *p >> 6) & 7) + '0');
+			ADDC((((unsigned int) *p >> 3) & 7) + '0');
+			ADDC((*p & 7) + '0');
+		}
+	}
+	if (sep[0] != '\0' && sep[1] != '\0') {
+		ADDC(sep[1]);
+	}
+done:
+	ADDC('\0');
+	if (b - buf >= len)
+	    buf[len - 1] = '\0';
+	return b - buf;
+}
diff --git a/frontend/libedit/key.h b/frontend/libedit/key.h
new file mode 100644
index 0000000..9c6844e
--- /dev/null
+++ b/frontend/libedit/key.h
@@ -0,0 +1,81 @@
+/*	$NetBSD: key.h,v 1.10 2006/03/23 20:22:51 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)key.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.key.h: Key macro header
+ */
+#ifndef _h_el_key
+#define	_h_el_key
+
+typedef union key_value_t {
+	el_action_t	 cmd;	/* If it is a command the #	*/
+	char		*str;	/* If it is a string...		*/
+} key_value_t;
+
+typedef struct key_node_t key_node_t;
+
+typedef struct el_key_t {
+	char		*buf;	/* Key print buffer		*/
+	key_node_t	*map;	/* Key map			*/
+	key_value_t	 val;	/* Local conversion buffer	*/
+} el_key_t;
+
+#define	XK_CMD	0
+#define	XK_STR	1
+#define	XK_NOD	2
+#define	XK_EXE	3
+
+#undef key_end
+#undef key_clear
+#undef key_print
+
+protected int		 key_init(EditLine *);
+protected void		 key_end(EditLine *);
+protected key_value_t	*key_map_cmd(EditLine *, int);
+protected key_value_t	*key_map_str(EditLine *, char *);
+protected void		 key_reset(EditLine *);
+protected int		 key_get(EditLine *, char *, key_value_t *);
+protected void		 key_add(EditLine *, const char *, key_value_t *, int);
+protected void		 key_clear(EditLine *, el_action_t *, const char *);
+protected int		 key_delete(EditLine *, const char *);
+protected void		 key_print(EditLine *, const char *);
+protected void	         key_kprint(EditLine *, const char *, key_value_t *,
+    int);
+protected int		 key__decode_str(const char *, char *, int,
+    const char *);
+protected int		 key__decode_char(char *, int, int, int);
+
+#endif /* _h_el_key */
diff --git a/frontend/libedit/ldscript b/frontend/libedit/ldscript
new file mode 100644
index 0000000..fc4b4ed
--- /dev/null
+++ b/frontend/libedit/ldscript
@@ -0,0 +1,6 @@
+VER_1 {
+      global: 
+              mono_debugger_readline_*;
+      local:
+              *;
+};
diff --git a/frontend/libedit/map.c b/frontend/libedit/map.c
new file mode 100644
index 0000000..89c76fa
--- /dev/null
+++ b/frontend/libedit/map.c
@@ -0,0 +1,1416 @@
+/*	$NetBSD: map.c,v 1.24 2006/04/09 01:36:51 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * map.c: Editor function definitions
+ */
+#include <stdlib.h>
+#include "el.h"
+
+#define	N_KEYS 256
+
+private void	map_print_key(EditLine *, el_action_t *, const char *);
+private void	map_print_some_keys(EditLine *, el_action_t *, int, int);
+private void	map_print_all_keys(EditLine *);
+private void	map_init_nls(EditLine *);
+private void	map_init_meta(EditLine *);
+
+/* keymap tables ; should be N_KEYS*sizeof(KEYCMD) bytes long */
+
+
+private const el_action_t  el_map_emacs[] = {
+	/*   0 */	EM_SET_MARK,		/* ^@ */
+	/*   1 */	ED_MOVE_TO_BEG,		/* ^A */
+	/*   2 */	ED_PREV_CHAR,		/* ^B */
+	/*   3 */	ED_TTY_SIGINT,		/* ^C */
+	/*   4 */	EM_DELETE_OR_LIST,	/* ^D */
+	/*   5 */	ED_MOVE_TO_END,		/* ^E */
+	/*   6 */	ED_NEXT_CHAR,		/* ^F */
+	/*   7 */	ED_UNASSIGNED,		/* ^G */
+	/*   8 */	ED_DELETE_PREV_CHAR,	/* ^H */
+	/*   9 */	ED_UNASSIGNED,		/* ^I */
+	/*  10 */	ED_NEWLINE,		/* ^J */
+	/*  11 */	ED_KILL_LINE,		/* ^K */
+	/*  12 */	ED_CLEAR_SCREEN,	/* ^L */
+	/*  13 */	ED_NEWLINE,		/* ^M */
+	/*  14 */	ED_NEXT_HISTORY,	/* ^N */
+	/*  15 */	ED_TTY_FLUSH_OUTPUT,	/* ^O */
+	/*  16 */	ED_PREV_HISTORY,	/* ^P */
+	/*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+	/*  18 */	ED_REDISPLAY,		/* ^R */
+	/*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+	/*  20 */	ED_TRANSPOSE_CHARS,	/* ^T */
+	/*  21 */	EM_KILL_LINE,		/* ^U */
+	/*  22 */	ED_QUOTED_INSERT,	/* ^V */
+	/*  23 */	EM_KILL_REGION,		/* ^W */
+	/*  24 */	ED_SEQUENCE_LEAD_IN,	/* ^X */
+	/*  25 */	EM_YANK,		/* ^Y */
+	/*  26 */	ED_TTY_SIGTSTP,		/* ^Z */
+	/*  27 */	EM_META_NEXT,		/* ^[ */
+	/*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+	/*  29 */	ED_TTY_DSUSP,		/* ^] */
+	/*  30 */	ED_UNASSIGNED,		/* ^^ */
+	/*  31 */	ED_UNASSIGNED,		/* ^_ */
+	/*  32 */	ED_INSERT,		/* SPACE */
+	/*  33 */	ED_INSERT,		/* ! */
+	/*  34 */	ED_INSERT,		/* " */
+	/*  35 */	ED_INSERT,		/* # */
+	/*  36 */	ED_INSERT,		/* $ */
+	/*  37 */	ED_INSERT,		/* % */
+	/*  38 */	ED_INSERT,		/* & */
+	/*  39 */	ED_INSERT,		/* ' */
+	/*  40 */	ED_INSERT,		/* ( */
+	/*  41 */	ED_INSERT,		/* ) */
+	/*  42 */	ED_INSERT,		/* * */
+	/*  43 */	ED_INSERT,		/* + */
+	/*  44 */	ED_INSERT,		/* , */
+	/*  45 */	ED_INSERT,		/* - */
+	/*  46 */	ED_INSERT,		/* . */
+	/*  47 */	ED_INSERT,		/* / */
+	/*  48 */	ED_DIGIT,		/* 0 */
+	/*  49 */	ED_DIGIT,		/* 1 */
+	/*  50 */	ED_DIGIT,		/* 2 */
+	/*  51 */	ED_DIGIT,		/* 3 */
+	/*  52 */	ED_DIGIT,		/* 4 */
+	/*  53 */	ED_DIGIT,		/* 5 */
+	/*  54 */	ED_DIGIT,		/* 6 */
+	/*  55 */	ED_DIGIT,		/* 7 */
+	/*  56 */	ED_DIGIT,		/* 8 */
+	/*  57 */	ED_DIGIT,		/* 9 */
+	/*  58 */	ED_INSERT,		/* : */
+	/*  59 */	ED_INSERT,		/* ; */
+	/*  60 */	ED_INSERT,		/* < */
+	/*  61 */	ED_INSERT,		/* = */
+	/*  62 */	ED_INSERT,		/* > */
+	/*  63 */	ED_INSERT,		/* ? */
+	/*  64 */	ED_INSERT,		/* @ */
+	/*  65 */	ED_INSERT,		/* A */
+	/*  66 */	ED_INSERT,		/* B */
+	/*  67 */	ED_INSERT,		/* C */
+	/*  68 */	ED_INSERT,		/* D */
+	/*  69 */	ED_INSERT,		/* E */
+	/*  70 */	ED_INSERT,		/* F */
+	/*  71 */	ED_INSERT,		/* G */
+	/*  72 */	ED_INSERT,		/* H */
+	/*  73 */	ED_INSERT,		/* I */
+	/*  74 */	ED_INSERT,		/* J */
+	/*  75 */	ED_INSERT,		/* K */
+	/*  76 */	ED_INSERT,		/* L */
+	/*  77 */	ED_INSERT,		/* M */
+	/*  78 */	ED_INSERT,		/* N */
+	/*  79 */	ED_INSERT,		/* O */
+	/*  80 */	ED_INSERT,		/* P */
+	/*  81 */	ED_INSERT,		/* Q */
+	/*  82 */	ED_INSERT,		/* R */
+	/*  83 */	ED_INSERT,		/* S */
+	/*  84 */	ED_INSERT,		/* T */
+	/*  85 */	ED_INSERT,		/* U */
+	/*  86 */	ED_INSERT,		/* V */
+	/*  87 */	ED_INSERT,		/* W */
+	/*  88 */	ED_INSERT,		/* X */
+	/*  89 */	ED_INSERT,		/* Y */
+	/*  90 */	ED_INSERT,		/* Z */
+	/*  91 */	ED_INSERT,		/* [ */
+	/*  92 */	ED_INSERT,		/* \ */
+	/*  93 */	ED_INSERT,		/* ] */
+	/*  94 */	ED_INSERT,		/* ^ */
+	/*  95 */	ED_INSERT,		/* _ */
+	/*  96 */	ED_INSERT,		/* ` */
+	/*  97 */	ED_INSERT,		/* a */
+	/*  98 */	ED_INSERT,		/* b */
+	/*  99 */	ED_INSERT,		/* c */
+	/* 100 */	ED_INSERT,		/* d */
+	/* 101 */	ED_INSERT,		/* e */
+	/* 102 */	ED_INSERT,		/* f */
+	/* 103 */	ED_INSERT,		/* g */
+	/* 104 */	ED_INSERT,		/* h */
+	/* 105 */	ED_INSERT,		/* i */
+	/* 106 */	ED_INSERT,		/* j */
+	/* 107 */	ED_INSERT,		/* k */
+	/* 108 */	ED_INSERT,		/* l */
+	/* 109 */	ED_INSERT,		/* m */
+	/* 110 */	ED_INSERT,		/* n */
+	/* 111 */	ED_INSERT,		/* o */
+	/* 112 */	ED_INSERT,		/* p */
+	/* 113 */	ED_INSERT,		/* q */
+	/* 114 */	ED_INSERT,		/* r */
+	/* 115 */	ED_INSERT,		/* s */
+	/* 116 */	ED_INSERT,		/* t */
+	/* 117 */	ED_INSERT,		/* u */
+	/* 118 */	ED_INSERT,		/* v */
+	/* 119 */	ED_INSERT,		/* w */
+	/* 120 */	ED_INSERT,		/* x */
+	/* 121 */	ED_INSERT,		/* y */
+	/* 122 */	ED_INSERT,		/* z */
+	/* 123 */	ED_INSERT,		/* { */
+	/* 124 */	ED_INSERT,		/* | */
+	/* 125 */	ED_INSERT,		/* } */
+	/* 126 */	ED_INSERT,		/* ~ */
+	/* 127 */	ED_DELETE_PREV_CHAR,	/* ^? */
+	/* 128 */	ED_UNASSIGNED,		/* M-^@ */
+	/* 129 */	ED_UNASSIGNED,		/* M-^A */
+	/* 130 */	ED_UNASSIGNED,		/* M-^B */
+	/* 131 */	ED_UNASSIGNED,		/* M-^C */
+	/* 132 */	ED_UNASSIGNED,		/* M-^D */
+	/* 133 */	ED_UNASSIGNED,		/* M-^E */
+	/* 134 */	ED_UNASSIGNED,		/* M-^F */
+	/* 135 */	ED_UNASSIGNED,		/* M-^G */
+	/* 136 */	ED_DELETE_PREV_WORD,	/* M-^H */
+	/* 137 */	ED_UNASSIGNED,		/* M-^I */
+	/* 138 */	ED_UNASSIGNED,		/* M-^J */
+	/* 139 */	ED_UNASSIGNED,		/* M-^K */
+	/* 140 */	ED_CLEAR_SCREEN,	/* M-^L */
+	/* 141 */	ED_UNASSIGNED,		/* M-^M */
+	/* 142 */	ED_UNASSIGNED,		/* M-^N */
+	/* 143 */	ED_UNASSIGNED,		/* M-^O */
+	/* 144 */	ED_UNASSIGNED,		/* M-^P */
+	/* 145 */	ED_UNASSIGNED,		/* M-^Q */
+	/* 146 */	ED_UNASSIGNED,		/* M-^R */
+	/* 147 */	ED_UNASSIGNED,		/* M-^S */
+	/* 148 */	ED_UNASSIGNED,		/* M-^T */
+	/* 149 */	ED_UNASSIGNED,		/* M-^U */
+	/* 150 */	ED_UNASSIGNED,		/* M-^V */
+	/* 151 */	ED_UNASSIGNED,		/* M-^W */
+	/* 152 */	ED_UNASSIGNED,		/* M-^X */
+	/* 153 */	ED_UNASSIGNED,		/* M-^Y */
+	/* 154 */	ED_UNASSIGNED,		/* M-^Z */
+	/* 155 */	ED_UNASSIGNED,		/* M-^[ */
+	/* 156 */	ED_UNASSIGNED,		/* M-^\ */
+	/* 157 */	ED_UNASSIGNED,		/* M-^] */
+	/* 158 */	ED_UNASSIGNED,		/* M-^^ */
+	/* 159 */	EM_COPY_PREV_WORD,	/* M-^_ */
+	/* 160 */	ED_UNASSIGNED,		/* M-SPACE */
+	/* 161 */	ED_UNASSIGNED,		/* M-! */
+	/* 162 */	ED_UNASSIGNED,		/* M-" */
+	/* 163 */	ED_UNASSIGNED,		/* M-# */
+	/* 164 */	ED_UNASSIGNED,		/* M-$ */
+	/* 165 */	ED_UNASSIGNED,		/* M-% */
+	/* 166 */	ED_UNASSIGNED,		/* M-& */
+	/* 167 */	ED_UNASSIGNED,		/* M-' */
+	/* 168 */	ED_UNASSIGNED,		/* M-( */
+	/* 169 */	ED_UNASSIGNED,		/* M-) */
+	/* 170 */	ED_UNASSIGNED,		/* M-* */
+	/* 171 */	ED_UNASSIGNED,		/* M-+ */
+	/* 172 */	ED_UNASSIGNED,		/* M-, */
+	/* 173 */	ED_UNASSIGNED,		/* M-- */
+	/* 174 */	ED_UNASSIGNED,		/* M-. */
+	/* 175 */	ED_UNASSIGNED,		/* M-/ */
+	/* 176 */	ED_ARGUMENT_DIGIT,	/* M-0 */
+	/* 177 */	ED_ARGUMENT_DIGIT,	/* M-1 */
+	/* 178 */	ED_ARGUMENT_DIGIT,	/* M-2 */
+	/* 179 */	ED_ARGUMENT_DIGIT,	/* M-3 */
+	/* 180 */	ED_ARGUMENT_DIGIT,	/* M-4 */
+	/* 181 */	ED_ARGUMENT_DIGIT,	/* M-5 */
+	/* 182 */	ED_ARGUMENT_DIGIT,	/* M-6 */
+	/* 183 */	ED_ARGUMENT_DIGIT,	/* M-7 */
+	/* 184 */	ED_ARGUMENT_DIGIT,	/* M-8 */
+	/* 185 */	ED_ARGUMENT_DIGIT,	/* M-9 */
+	/* 186 */	ED_UNASSIGNED,		/* M-: */
+	/* 187 */	ED_UNASSIGNED,		/* M-; */
+	/* 188 */	ED_UNASSIGNED,		/* M-< */
+	/* 189 */	ED_UNASSIGNED,		/* M-= */
+	/* 190 */	ED_UNASSIGNED,		/* M-> */
+	/* 191 */	ED_UNASSIGNED,		/* M-? */
+	/* 192 */	ED_UNASSIGNED,		/* M-@ */
+	/* 193 */	ED_UNASSIGNED,		/* M-A */
+	/* 194 */	ED_PREV_WORD,		/* M-B */
+	/* 195 */	EM_CAPITOL_CASE,	/* M-C */
+	/* 196 */	EM_DELETE_NEXT_WORD,	/* M-D */
+	/* 197 */	ED_UNASSIGNED,		/* M-E */
+	/* 198 */	EM_NEXT_WORD,		/* M-F */
+	/* 199 */	ED_UNASSIGNED,		/* M-G */
+	/* 200 */	ED_UNASSIGNED,		/* M-H */
+	/* 201 */	ED_UNASSIGNED,		/* M-I */
+	/* 202 */	ED_UNASSIGNED,		/* M-J */
+	/* 203 */	ED_UNASSIGNED,		/* M-K */
+	/* 204 */	EM_LOWER_CASE,		/* M-L */
+	/* 205 */	ED_UNASSIGNED,		/* M-M */
+	/* 206 */	ED_SEARCH_NEXT_HISTORY,	/* M-N */
+	/* 207 */	ED_SEQUENCE_LEAD_IN,	/* M-O */
+	/* 208 */	ED_SEARCH_PREV_HISTORY,	/* M-P */
+	/* 209 */	ED_UNASSIGNED,		/* M-Q */
+	/* 210 */	ED_UNASSIGNED,		/* M-R */
+	/* 211 */	ED_UNASSIGNED,		/* M-S */
+	/* 212 */	ED_UNASSIGNED,		/* M-T */
+	/* 213 */	EM_UPPER_CASE,		/* M-U */
+	/* 214 */	ED_UNASSIGNED,		/* M-V */
+	/* 215 */	EM_COPY_REGION,		/* M-W */
+	/* 216 */	ED_COMMAND,		/* M-X */
+	/* 217 */	ED_UNASSIGNED,		/* M-Y */
+	/* 218 */	ED_UNASSIGNED,		/* M-Z */
+	/* 219 */	ED_SEQUENCE_LEAD_IN,	/* M-[ */
+	/* 220 */	ED_UNASSIGNED,		/* M-\ */
+	/* 221 */	ED_UNASSIGNED,		/* M-] */
+	/* 222 */	ED_UNASSIGNED,		/* M-^ */
+	/* 223 */	ED_UNASSIGNED,		/* M-_ */
+	/* 223 */	ED_UNASSIGNED,		/* M-` */
+	/* 224 */	ED_UNASSIGNED,		/* M-a */
+	/* 225 */	ED_PREV_WORD,		/* M-b */
+	/* 226 */	EM_CAPITOL_CASE,	/* M-c */
+	/* 227 */	EM_DELETE_NEXT_WORD,	/* M-d */
+	/* 228 */	ED_UNASSIGNED,		/* M-e */
+	/* 229 */	EM_NEXT_WORD,		/* M-f */
+	/* 230 */	ED_UNASSIGNED,		/* M-g */
+	/* 231 */	ED_UNASSIGNED,		/* M-h */
+	/* 232 */	ED_UNASSIGNED,		/* M-i */
+	/* 233 */	ED_UNASSIGNED,		/* M-j */
+	/* 234 */	ED_UNASSIGNED,		/* M-k */
+	/* 235 */	EM_LOWER_CASE,		/* M-l */
+	/* 236 */	ED_UNASSIGNED,		/* M-m */
+	/* 237 */	ED_SEARCH_NEXT_HISTORY,	/* M-n */
+	/* 238 */	ED_UNASSIGNED,		/* M-o */
+	/* 239 */	ED_SEARCH_PREV_HISTORY,	/* M-p */
+	/* 240 */	ED_UNASSIGNED,		/* M-q */
+	/* 241 */	ED_UNASSIGNED,		/* M-r */
+	/* 242 */	ED_UNASSIGNED,		/* M-s */
+	/* 243 */	ED_UNASSIGNED,		/* M-t */
+	/* 244 */	EM_UPPER_CASE,		/* M-u */
+	/* 245 */	ED_UNASSIGNED,		/* M-v */
+	/* 246 */	EM_COPY_REGION,		/* M-w */
+	/* 247 */	ED_COMMAND,		/* M-x */
+	/* 248 */	ED_UNASSIGNED,		/* M-y */
+	/* 249 */	ED_UNASSIGNED,		/* M-z */
+	/* 250 */	ED_UNASSIGNED,		/* M-{ */
+	/* 251 */	ED_UNASSIGNED,		/* M-| */
+	/* 252 */	ED_UNASSIGNED,		/* M-} */
+	/* 253 */	ED_UNASSIGNED,		/* M-~ */
+	/* 254 */	ED_DELETE_PREV_WORD	/* M-^? */
+	/* 255 */
+};
+
+
+/*
+ * keymap table for vi.  Each index into above tbl; should be
+ * N_KEYS entries long.  Vi mode uses a sticky-extend to do command mode:
+ * insert mode characters are in the normal keymap, and command mode
+ * in the extended keymap.
+ */
+private const el_action_t  el_map_vi_insert[] = {
+#ifdef KSHVI
+	/*   0 */	ED_UNASSIGNED,		/* ^@ */
+	/*   1 */	ED_INSERT,		/* ^A */
+	/*   2 */	ED_INSERT,		/* ^B */
+	/*   3 */	ED_INSERT,		/* ^C */
+	/*   4 */	VI_LIST_OR_EOF,		/* ^D */
+	/*   5 */	ED_INSERT,		/* ^E */
+	/*   6 */	ED_INSERT,		/* ^F */
+	/*   7 */	ED_INSERT,		/* ^G */
+	/*   8 */	VI_DELETE_PREV_CHAR,	/* ^H */   /* BackSpace key */
+	/*   9 */	ED_INSERT,		/* ^I */   /* Tab Key  */
+	/*  10 */	ED_NEWLINE,		/* ^J */
+	/*  11 */	ED_INSERT,		/* ^K */
+	/*  12 */	ED_INSERT,		/* ^L */
+	/*  13 */	ED_NEWLINE,		/* ^M */
+	/*  14 */	ED_INSERT,		/* ^N */
+	/*  15 */	ED_INSERT,		/* ^O */
+	/*  16 */	ED_INSERT,		/* ^P */
+	/*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+	/*  18 */	ED_INSERT,		/* ^R */
+	/*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+	/*  20 */	ED_INSERT,		/* ^T */
+	/*  21 */	VI_KILL_LINE_PREV,	/* ^U */
+	/*  22 */	ED_QUOTED_INSERT,	/* ^V */
+	/*  23 */	ED_DELETE_PREV_WORD,	/* ^W */
+		/* ED_DELETE_PREV_WORD: Only until strt edit pos */
+	/*  24 */	ED_INSERT,		/* ^X */
+	/*  25 */	ED_INSERT,		/* ^Y */
+	/*  26 */	ED_INSERT,		/* ^Z */
+	/*  27 */	VI_COMMAND_MODE,	/* ^[ */  /* [ Esc ] key */
+	/*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+	/*  29 */	ED_INSERT,		/* ^] */
+	/*  30 */	ED_INSERT,		/* ^^ */
+	/*  31 */	ED_INSERT,		/* ^_ */
+#else /* !KSHVI */
+				/*
+				 * NOTE: These mappings do NOT Correspond well
+				 * to the KSH VI editing assignments.
+				 * On the other and they are convenient and
+				 * many people have have gotten used to them.
+				 */
+	/*   0 */	ED_UNASSIGNED,		/* ^@ */
+	/*   1 */	ED_MOVE_TO_BEG,		/* ^A */
+	/*   2 */	ED_PREV_CHAR,		/* ^B */
+	/*   3 */	ED_TTY_SIGINT,		/* ^C */
+	/*   4 */	VI_LIST_OR_EOF,		/* ^D */
+	/*   5 */	ED_MOVE_TO_END,		/* ^E */
+	/*   6 */	ED_NEXT_CHAR,		/* ^F */
+	/*   7 */	ED_UNASSIGNED,		/* ^G */
+	/*   8 */	VI_DELETE_PREV_CHAR,	/* ^H */   /* BackSpace key */
+	/*   9 */	ED_UNASSIGNED,		/* ^I */   /* Tab Key */
+	/*  10 */	ED_NEWLINE,		/* ^J */
+	/*  11 */	ED_KILL_LINE,		/* ^K */
+	/*  12 */	ED_CLEAR_SCREEN,	/* ^L */
+	/*  13 */	ED_NEWLINE,		/* ^M */
+	/*  14 */	ED_NEXT_HISTORY,	/* ^N */
+	/*  15 */	ED_TTY_FLUSH_OUTPUT,	/* ^O */
+	/*  16 */	ED_PREV_HISTORY,	/* ^P */
+	/*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+	/*  18 */	ED_REDISPLAY,		/* ^R */
+	/*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+	/*  20 */	ED_TRANSPOSE_CHARS,	/* ^T */
+	/*  21 */	VI_KILL_LINE_PREV,	/* ^U */
+	/*  22 */	ED_QUOTED_INSERT,	/* ^V */
+	/*  23 */	ED_DELETE_PREV_WORD,	/* ^W */
+	/*  24 */	ED_UNASSIGNED,		/* ^X */
+	/*  25 */	ED_TTY_DSUSP,		/* ^Y */
+	/*  26 */	ED_TTY_SIGTSTP,		/* ^Z */
+	/*  27 */	VI_COMMAND_MODE,	/* ^[ */
+	/*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+	/*  29 */	ED_UNASSIGNED,		/* ^] */
+	/*  30 */	ED_UNASSIGNED,		/* ^^ */
+	/*  31 */	ED_UNASSIGNED,		/* ^_ */
+#endif  /* KSHVI */
+	/*  32 */	ED_INSERT,		/* SPACE */
+	/*  33 */	ED_INSERT,		/* ! */
+	/*  34 */	ED_INSERT,		/* " */
+	/*  35 */	ED_INSERT,		/* # */
+	/*  36 */	ED_INSERT,		/* $ */
+	/*  37 */	ED_INSERT,		/* % */
+	/*  38 */	ED_INSERT,		/* & */
+	/*  39 */	ED_INSERT,		/* ' */
+	/*  40 */	ED_INSERT,		/* ( */
+	/*  41 */	ED_INSERT,		/* ) */
+	/*  42 */	ED_INSERT,		/* * */
+	/*  43 */	ED_INSERT,		/* + */
+	/*  44 */	ED_INSERT,		/* , */
+	/*  45 */	ED_INSERT,		/* - */
+	/*  46 */	ED_INSERT,		/* . */
+	/*  47 */	ED_INSERT,		/* / */
+	/*  48 */	ED_INSERT,		/* 0 */
+	/*  49 */	ED_INSERT,		/* 1 */
+	/*  50 */	ED_INSERT,		/* 2 */
+	/*  51 */	ED_INSERT,		/* 3 */
+	/*  52 */	ED_INSERT,		/* 4 */
+	/*  53 */	ED_INSERT,		/* 5 */
+	/*  54 */	ED_INSERT,		/* 6 */
+	/*  55 */	ED_INSERT,		/* 7 */
+	/*  56 */	ED_INSERT,		/* 8 */
+	/*  57 */	ED_INSERT,		/* 9 */
+	/*  58 */	ED_INSERT,		/* : */
+	/*  59 */	ED_INSERT,		/* ; */
+	/*  60 */	ED_INSERT,		/* < */
+	/*  61 */	ED_INSERT,		/* = */
+	/*  62 */	ED_INSERT,		/* > */
+	/*  63 */	ED_INSERT,		/* ? */
+	/*  64 */	ED_INSERT,		/* @ */
+	/*  65 */	ED_INSERT,		/* A */
+	/*  66 */	ED_INSERT,		/* B */
+	/*  67 */	ED_INSERT,		/* C */
+	/*  68 */	ED_INSERT,		/* D */
+	/*  69 */	ED_INSERT,		/* E */
+	/*  70 */	ED_INSERT,		/* F */
+	/*  71 */	ED_INSERT,		/* G */
+	/*  72 */	ED_INSERT,		/* H */
+	/*  73 */	ED_INSERT,		/* I */
+	/*  74 */	ED_INSERT,		/* J */
+	/*  75 */	ED_INSERT,		/* K */
+	/*  76 */	ED_INSERT,		/* L */
+	/*  77 */	ED_INSERT,		/* M */
+	/*  78 */	ED_INSERT,		/* N */
+	/*  79 */	ED_INSERT,		/* O */
+	/*  80 */	ED_INSERT,		/* P */
+	/*  81 */	ED_INSERT,		/* Q */
+	/*  82 */	ED_INSERT,		/* R */
+	/*  83 */	ED_INSERT,		/* S */
+	/*  84 */	ED_INSERT,		/* T */
+	/*  85 */	ED_INSERT,		/* U */
+	/*  86 */	ED_INSERT,		/* V */
+	/*  87 */	ED_INSERT,		/* W */
+	/*  88 */	ED_INSERT,		/* X */
+	/*  89 */	ED_INSERT,		/* Y */
+	/*  90 */	ED_INSERT,		/* Z */
+	/*  91 */	ED_INSERT,		/* [ */
+	/*  92 */	ED_INSERT,		/* \ */
+	/*  93 */	ED_INSERT,		/* ] */
+	/*  94 */	ED_INSERT,		/* ^ */
+	/*  95 */	ED_INSERT,		/* _ */
+	/*  96 */	ED_INSERT,		/* ` */
+	/*  97 */	ED_INSERT,		/* a */
+	/*  98 */	ED_INSERT,		/* b */
+	/*  99 */	ED_INSERT,		/* c */
+	/* 100 */	ED_INSERT,		/* d */
+	/* 101 */	ED_INSERT,		/* e */
+	/* 102 */	ED_INSERT,		/* f */
+	/* 103 */	ED_INSERT,		/* g */
+	/* 104 */	ED_INSERT,		/* h */
+	/* 105 */	ED_INSERT,		/* i */
+	/* 106 */	ED_INSERT,		/* j */
+	/* 107 */	ED_INSERT,		/* k */
+	/* 108 */	ED_INSERT,		/* l */
+	/* 109 */	ED_INSERT,		/* m */
+	/* 110 */	ED_INSERT,		/* n */
+	/* 111 */	ED_INSERT,		/* o */
+	/* 112 */	ED_INSERT,		/* p */
+	/* 113 */	ED_INSERT,		/* q */
+	/* 114 */	ED_INSERT,		/* r */
+	/* 115 */	ED_INSERT,		/* s */
+	/* 116 */	ED_INSERT,		/* t */
+	/* 117 */	ED_INSERT,		/* u */
+	/* 118 */	ED_INSERT,		/* v */
+	/* 119 */	ED_INSERT,		/* w */
+	/* 120 */	ED_INSERT,		/* x */
+	/* 121 */	ED_INSERT,		/* y */
+	/* 122 */	ED_INSERT,		/* z */
+	/* 123 */	ED_INSERT,		/* { */
+	/* 124 */	ED_INSERT,		/* | */
+	/* 125 */	ED_INSERT,		/* } */
+	/* 126 */	ED_INSERT,		/* ~ */
+	/* 127 */	VI_DELETE_PREV_CHAR,	/* ^? */
+	/* 128 */	ED_INSERT,		/* M-^@ */
+	/* 129 */	ED_INSERT,		/* M-^A */
+	/* 130 */	ED_INSERT,		/* M-^B */
+	/* 131 */	ED_INSERT,		/* M-^C */
+	/* 132 */	ED_INSERT,		/* M-^D */
+	/* 133 */	ED_INSERT,		/* M-^E */
+	/* 134 */	ED_INSERT,		/* M-^F */
+	/* 135 */	ED_INSERT,		/* M-^G */
+	/* 136 */	ED_INSERT,		/* M-^H */
+	/* 137 */	ED_INSERT,		/* M-^I */
+	/* 138 */	ED_INSERT,		/* M-^J */
+	/* 139 */	ED_INSERT,		/* M-^K */
+	/* 140 */	ED_INSERT,		/* M-^L */
+	/* 141 */	ED_INSERT,		/* M-^M */
+	/* 142 */	ED_INSERT,		/* M-^N */
+	/* 143 */	ED_INSERT,		/* M-^O */
+	/* 144 */	ED_INSERT,		/* M-^P */
+	/* 145 */	ED_INSERT,		/* M-^Q */
+	/* 146 */	ED_INSERT,		/* M-^R */
+	/* 147 */	ED_INSERT,		/* M-^S */
+	/* 148 */	ED_INSERT,		/* M-^T */
+	/* 149 */	ED_INSERT,		/* M-^U */
+	/* 150 */	ED_INSERT,		/* M-^V */
+	/* 151 */	ED_INSERT,		/* M-^W */
+	/* 152 */	ED_INSERT,		/* M-^X */
+	/* 153 */	ED_INSERT,		/* M-^Y */
+	/* 154 */	ED_INSERT,		/* M-^Z */
+	/* 155 */	ED_INSERT,		/* M-^[ */
+	/* 156 */	ED_INSERT,		/* M-^\ */
+	/* 157 */	ED_INSERT,		/* M-^] */
+	/* 158 */	ED_INSERT,		/* M-^^ */
+	/* 159 */	ED_INSERT,		/* M-^_ */
+	/* 160 */	ED_INSERT,		/* M-SPACE */
+	/* 161 */	ED_INSERT,		/* M-! */
+	/* 162 */	ED_INSERT,		/* M-" */
+	/* 163 */	ED_INSERT,		/* M-# */
+	/* 164 */	ED_INSERT,		/* M-$ */
+	/* 165 */	ED_INSERT,		/* M-% */
+	/* 166 */	ED_INSERT,		/* M-& */
+	/* 167 */	ED_INSERT,		/* M-' */
+	/* 168 */	ED_INSERT,		/* M-( */
+	/* 169 */	ED_INSERT,		/* M-) */
+	/* 170 */	ED_INSERT,		/* M-* */
+	/* 171 */	ED_INSERT,		/* M-+ */
+	/* 172 */	ED_INSERT,		/* M-, */
+	/* 173 */	ED_INSERT,		/* M-- */
+	/* 174 */	ED_INSERT,		/* M-. */
+	/* 175 */	ED_INSERT,		/* M-/ */
+	/* 176 */	ED_INSERT,		/* M-0 */
+	/* 177 */	ED_INSERT,		/* M-1 */
+	/* 178 */	ED_INSERT,		/* M-2 */
+	/* 179 */	ED_INSERT,		/* M-3 */
+	/* 180 */	ED_INSERT,		/* M-4 */
+	/* 181 */	ED_INSERT,		/* M-5 */
+	/* 182 */	ED_INSERT,		/* M-6 */
+	/* 183 */	ED_INSERT,		/* M-7 */
+	/* 184 */	ED_INSERT,		/* M-8 */
+	/* 185 */	ED_INSERT,		/* M-9 */
+	/* 186 */	ED_INSERT,		/* M-: */
+	/* 187 */	ED_INSERT,		/* M-; */
+	/* 188 */	ED_INSERT,		/* M-< */
+	/* 189 */	ED_INSERT,		/* M-= */
+	/* 190 */	ED_INSERT,		/* M-> */
+	/* 191 */	ED_INSERT,		/* M-? */
+	/* 192 */	ED_INSERT,		/* M-@ */
+	/* 193 */	ED_INSERT,		/* M-A */
+	/* 194 */	ED_INSERT,		/* M-B */
+	/* 195 */	ED_INSERT,		/* M-C */
+	/* 196 */	ED_INSERT,		/* M-D */
+	/* 197 */	ED_INSERT,		/* M-E */
+	/* 198 */	ED_INSERT,		/* M-F */
+	/* 199 */	ED_INSERT,		/* M-G */
+	/* 200 */	ED_INSERT,		/* M-H */
+	/* 201 */	ED_INSERT,		/* M-I */
+	/* 202 */	ED_INSERT,		/* M-J */
+	/* 203 */	ED_INSERT,		/* M-K */
+	/* 204 */	ED_INSERT,		/* M-L */
+	/* 205 */	ED_INSERT,		/* M-M */
+	/* 206 */	ED_INSERT,		/* M-N */
+	/* 207 */	ED_INSERT,		/* M-O */
+	/* 208 */	ED_INSERT,		/* M-P */
+	/* 209 */	ED_INSERT,		/* M-Q */
+	/* 210 */	ED_INSERT,		/* M-R */
+	/* 211 */	ED_INSERT,		/* M-S */
+	/* 212 */	ED_INSERT,		/* M-T */
+	/* 213 */	ED_INSERT,		/* M-U */
+	/* 214 */	ED_INSERT,		/* M-V */
+	/* 215 */	ED_INSERT,		/* M-W */
+	/* 216 */	ED_INSERT,		/* M-X */
+	/* 217 */	ED_INSERT,		/* M-Y */
+	/* 218 */	ED_INSERT,		/* M-Z */
+	/* 219 */	ED_INSERT,		/* M-[ */
+	/* 220 */	ED_INSERT,		/* M-\ */
+	/* 221 */	ED_INSERT,		/* M-] */
+	/* 222 */	ED_INSERT,		/* M-^ */
+	/* 223 */	ED_INSERT,		/* M-_ */
+	/* 224 */	ED_INSERT,		/* M-` */
+	/* 225 */	ED_INSERT,		/* M-a */
+	/* 226 */	ED_INSERT,		/* M-b */
+	/* 227 */	ED_INSERT,		/* M-c */
+	/* 228 */	ED_INSERT,		/* M-d */
+	/* 229 */	ED_INSERT,		/* M-e */
+	/* 230 */	ED_INSERT,		/* M-f */
+	/* 231 */	ED_INSERT,		/* M-g */
+	/* 232 */	ED_INSERT,		/* M-h */
+	/* 233 */	ED_INSERT,		/* M-i */
+	/* 234 */	ED_INSERT,		/* M-j */
+	/* 235 */	ED_INSERT,		/* M-k */
+	/* 236 */	ED_INSERT,		/* M-l */
+	/* 237 */	ED_INSERT,		/* M-m */
+	/* 238 */	ED_INSERT,		/* M-n */
+	/* 239 */	ED_INSERT,		/* M-o */
+	/* 240 */	ED_INSERT,		/* M-p */
+	/* 241 */	ED_INSERT,		/* M-q */
+	/* 242 */	ED_INSERT,		/* M-r */
+	/* 243 */	ED_INSERT,		/* M-s */
+	/* 244 */	ED_INSERT,		/* M-t */
+	/* 245 */	ED_INSERT,		/* M-u */
+	/* 246 */	ED_INSERT,		/* M-v */
+	/* 247 */	ED_INSERT,		/* M-w */
+	/* 248 */	ED_INSERT,		/* M-x */
+	/* 249 */	ED_INSERT,		/* M-y */
+	/* 250 */	ED_INSERT,		/* M-z */
+	/* 251 */	ED_INSERT,		/* M-{ */
+	/* 252 */	ED_INSERT,		/* M-| */
+	/* 253 */	ED_INSERT,		/* M-} */
+	/* 254 */	ED_INSERT,		/* M-~ */
+	/* 255 */	ED_INSERT		/* M-^? */
+};
+
+private const el_action_t el_map_vi_command[] = {
+	/*   0 */	ED_UNASSIGNED,		/* ^@ */
+	/*   1 */	ED_MOVE_TO_BEG,		/* ^A */
+	/*   2 */	ED_UNASSIGNED,		/* ^B */
+	/*   3 */	ED_TTY_SIGINT,		/* ^C */
+	/*   4 */	ED_UNASSIGNED,		/* ^D */
+	/*   5 */	ED_MOVE_TO_END,		/* ^E */
+	/*   6 */	ED_UNASSIGNED,		/* ^F */
+	/*   7 */	ED_UNASSIGNED,		/* ^G */
+	/*   8 */	ED_DELETE_PREV_CHAR,	/* ^H */
+	/*   9 */	ED_UNASSIGNED,		/* ^I */
+	/*  10 */	ED_NEWLINE,		/* ^J */
+	/*  11 */	ED_KILL_LINE,		/* ^K */
+	/*  12 */	ED_CLEAR_SCREEN,	/* ^L */
+	/*  13 */	ED_NEWLINE,		/* ^M */
+	/*  14 */	ED_NEXT_HISTORY,	/* ^N */
+	/*  15 */	ED_TTY_FLUSH_OUTPUT,	/* ^O */
+	/*  16 */	ED_PREV_HISTORY,	/* ^P */
+	/*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+	/*  18 */	ED_REDISPLAY,		/* ^R */
+	/*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+	/*  20 */	ED_UNASSIGNED,		/* ^T */
+	/*  21 */	VI_KILL_LINE_PREV,	/* ^U */
+	/*  22 */	ED_UNASSIGNED,		/* ^V */
+	/*  23 */	ED_DELETE_PREV_WORD,	/* ^W */
+	/*  24 */	ED_UNASSIGNED,		/* ^X */
+	/*  25 */	ED_UNASSIGNED,		/* ^Y */
+	/*  26 */	ED_UNASSIGNED,		/* ^Z */
+	/*  27 */	EM_META_NEXT,		/* ^[ */
+	/*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+	/*  29 */	ED_UNASSIGNED,		/* ^] */
+	/*  30 */	ED_UNASSIGNED,		/* ^^ */
+	/*  31 */	ED_UNASSIGNED,		/* ^_ */
+	/*  32 */	ED_NEXT_CHAR,		/* SPACE */
+	/*  33 */	ED_UNASSIGNED,		/* ! */
+	/*  34 */	ED_UNASSIGNED,		/* " */
+	/*  35 */	VI_COMMENT_OUT,		/* # */
+	/*  36 */	ED_MOVE_TO_END,		/* $ */
+	/*  37 */	VI_MATCH,		/* % */
+	/*  38 */	ED_UNASSIGNED,		/* & */
+	/*  39 */	ED_UNASSIGNED,		/* ' */
+	/*  40 */	ED_UNASSIGNED,		/* ( */
+	/*  41 */	ED_UNASSIGNED,		/* ) */
+	/*  42 */	ED_UNASSIGNED,		/* * */
+	/*  43 */	ED_NEXT_HISTORY,	/* + */
+	/*  44 */	VI_REPEAT_PREV_CHAR,	/* , */
+	/*  45 */	ED_PREV_HISTORY,	/* - */
+	/*  46 */	VI_REDO,		/* . */
+	/*  47 */	VI_SEARCH_PREV,		/* / */
+	/*  48 */	VI_ZERO,		/* 0 */
+	/*  49 */	ED_ARGUMENT_DIGIT,	/* 1 */
+	/*  50 */	ED_ARGUMENT_DIGIT,	/* 2 */
+	/*  51 */	ED_ARGUMENT_DIGIT,	/* 3 */
+	/*  52 */	ED_ARGUMENT_DIGIT,	/* 4 */
+	/*  53 */	ED_ARGUMENT_DIGIT,	/* 5 */
+	/*  54 */	ED_ARGUMENT_DIGIT,	/* 6 */
+	/*  55 */	ED_ARGUMENT_DIGIT,	/* 7 */
+	/*  56 */	ED_ARGUMENT_DIGIT,	/* 8 */
+	/*  57 */	ED_ARGUMENT_DIGIT,	/* 9 */
+	/*  58 */	ED_COMMAND,		/* : */
+	/*  59 */	VI_REPEAT_NEXT_CHAR,	/* ; */
+	/*  60 */	ED_UNASSIGNED,		/* < */
+	/*  61 */	ED_UNASSIGNED,		/* = */
+	/*  62 */	ED_UNASSIGNED,		/* > */
+	/*  63 */	VI_SEARCH_NEXT,		/* ? */
+	/*  64 */	VI_ALIAS,		/* @ */
+	/*  65 */	VI_ADD_AT_EOL,		/* A */
+	/*  66 */	VI_PREV_BIG_WORD,	/* B */
+	/*  67 */	VI_CHANGE_TO_EOL,	/* C */
+	/*  68 */	ED_KILL_LINE,		/* D */
+	/*  69 */	VI_END_BIG_WORD,	/* E */
+	/*  70 */	VI_PREV_CHAR,		/* F */
+	/*  71 */	VI_TO_HISTORY_LINE,	/* G */
+	/*  72 */	ED_UNASSIGNED,		/* H */
+	/*  73 */	VI_INSERT_AT_BOL,	/* I */
+	/*  74 */	ED_SEARCH_NEXT_HISTORY,	/* J */
+	/*  75 */	ED_SEARCH_PREV_HISTORY,	/* K */
+	/*  76 */	ED_UNASSIGNED,		/* L */
+	/*  77 */	ED_UNASSIGNED,		/* M */
+	/*  78 */	VI_REPEAT_SEARCH_PREV,	/* N */
+	/*  79 */	ED_SEQUENCE_LEAD_IN,	/* O */
+	/*  80 */	VI_PASTE_PREV,		/* P */
+	/*  81 */	ED_UNASSIGNED,		/* Q */
+	/*  82 */	VI_REPLACE_MODE,	/* R */
+	/*  83 */	VI_SUBSTITUTE_LINE,	/* S */
+	/*  84 */	VI_TO_PREV_CHAR,	/* T */
+	/*  85 */	VI_UNDO_LINE,		/* U */
+	/*  86 */	ED_UNASSIGNED,		/* V */
+	/*  87 */	VI_NEXT_BIG_WORD,	/* W */
+	/*  88 */	ED_DELETE_PREV_CHAR,	/* X */
+	/*  89 */	VI_YANK_END,		/* Y */
+	/*  90 */	ED_UNASSIGNED,		/* Z */
+	/*  91 */	ED_SEQUENCE_LEAD_IN,	/* [ */
+	/*  92 */	ED_UNASSIGNED,		/* \ */
+	/*  93 */	ED_UNASSIGNED,		/* ] */
+	/*  94 */	ED_MOVE_TO_BEG,		/* ^ */
+	/*  95 */	VI_HISTORY_WORD,	/* _ */
+	/*  96 */	ED_UNASSIGNED,		/* ` */
+	/*  97 */	VI_ADD,			/* a */
+	/*  98 */	VI_PREV_WORD,		/* b */
+	/*  99 */	VI_CHANGE_META,		/* c */
+	/* 100 */	VI_DELETE_META,		/* d */
+	/* 101 */	VI_END_WORD,		/* e */
+	/* 102 */	VI_NEXT_CHAR,		/* f */
+	/* 103 */	ED_UNASSIGNED,		/* g */
+	/* 104 */	ED_PREV_CHAR,		/* h */
+	/* 105 */	VI_INSERT,		/* i */
+	/* 106 */	ED_NEXT_HISTORY,	/* j */
+	/* 107 */	ED_PREV_HISTORY,	/* k */
+	/* 108 */	ED_NEXT_CHAR,		/* l */
+	/* 109 */	ED_UNASSIGNED,		/* m */
+	/* 110 */	VI_REPEAT_SEARCH_NEXT,	/* n */
+	/* 111 */	ED_UNASSIGNED,		/* o */
+	/* 112 */	VI_PASTE_NEXT,		/* p */
+	/* 113 */	ED_UNASSIGNED,		/* q */
+	/* 114 */	VI_REPLACE_CHAR,	/* r */
+	/* 115 */	VI_SUBSTITUTE_CHAR,	/* s */
+	/* 116 */	VI_TO_NEXT_CHAR,	/* t */
+	/* 117 */	VI_UNDO,		/* u */
+	/* 118 */	VI_HISTEDIT,		/* v */
+	/* 119 */	VI_NEXT_WORD,		/* w */
+	/* 120 */	ED_DELETE_NEXT_CHAR,	/* x */
+	/* 121 */	VI_YANK,		/* y */
+	/* 122 */	ED_UNASSIGNED,		/* z */
+	/* 123 */	ED_UNASSIGNED,		/* { */
+	/* 124 */	VI_TO_COLUMN,		/* | */
+	/* 125 */	ED_UNASSIGNED,		/* } */
+	/* 126 */	VI_CHANGE_CASE,		/* ~ */
+	/* 127 */	ED_DELETE_PREV_CHAR,	/* ^? */
+	/* 128 */	ED_UNASSIGNED,		/* M-^@ */
+	/* 129 */	ED_UNASSIGNED,		/* M-^A */
+	/* 130 */	ED_UNASSIGNED,		/* M-^B */
+	/* 131 */	ED_UNASSIGNED,		/* M-^C */
+	/* 132 */	ED_UNASSIGNED,		/* M-^D */
+	/* 133 */	ED_UNASSIGNED,		/* M-^E */
+	/* 134 */	ED_UNASSIGNED,		/* M-^F */
+	/* 135 */	ED_UNASSIGNED,		/* M-^G */
+	/* 136 */	ED_UNASSIGNED,		/* M-^H */
+	/* 137 */	ED_UNASSIGNED,		/* M-^I */
+	/* 138 */	ED_UNASSIGNED,		/* M-^J */
+	/* 139 */	ED_UNASSIGNED,		/* M-^K */
+	/* 140 */	ED_UNASSIGNED,		/* M-^L */
+	/* 141 */	ED_UNASSIGNED,		/* M-^M */
+	/* 142 */	ED_UNASSIGNED,		/* M-^N */
+	/* 143 */	ED_UNASSIGNED,		/* M-^O */
+	/* 144 */	ED_UNASSIGNED,		/* M-^P */
+	/* 145 */	ED_UNASSIGNED,		/* M-^Q */
+	/* 146 */	ED_UNASSIGNED,		/* M-^R */
+	/* 147 */	ED_UNASSIGNED,		/* M-^S */
+	/* 148 */	ED_UNASSIGNED,		/* M-^T */
+	/* 149 */	ED_UNASSIGNED,		/* M-^U */
+	/* 150 */	ED_UNASSIGNED,		/* M-^V */
+	/* 151 */	ED_UNASSIGNED,		/* M-^W */
+	/* 152 */	ED_UNASSIGNED,		/* M-^X */
+	/* 153 */	ED_UNASSIGNED,		/* M-^Y */
+	/* 154 */	ED_UNASSIGNED,		/* M-^Z */
+	/* 155 */	ED_UNASSIGNED,		/* M-^[ */
+	/* 156 */	ED_UNASSIGNED,		/* M-^\ */
+	/* 157 */	ED_UNASSIGNED,		/* M-^] */
+	/* 158 */	ED_UNASSIGNED,		/* M-^^ */
+	/* 159 */	ED_UNASSIGNED,		/* M-^_ */
+	/* 160 */	ED_UNASSIGNED,		/* M-SPACE */
+	/* 161 */	ED_UNASSIGNED,		/* M-! */
+	/* 162 */	ED_UNASSIGNED,		/* M-" */
+	/* 163 */	ED_UNASSIGNED,		/* M-# */
+	/* 164 */	ED_UNASSIGNED,		/* M-$ */
+	/* 165 */	ED_UNASSIGNED,		/* M-% */
+	/* 166 */	ED_UNASSIGNED,		/* M-& */
+	/* 167 */	ED_UNASSIGNED,		/* M-' */
+	/* 168 */	ED_UNASSIGNED,		/* M-( */
+	/* 169 */	ED_UNASSIGNED,		/* M-) */
+	/* 170 */	ED_UNASSIGNED,		/* M-* */
+	/* 171 */	ED_UNASSIGNED,		/* M-+ */
+	/* 172 */	ED_UNASSIGNED,		/* M-, */
+	/* 173 */	ED_UNASSIGNED,		/* M-- */
+	/* 174 */	ED_UNASSIGNED,		/* M-. */
+	/* 175 */	ED_UNASSIGNED,		/* M-/ */
+	/* 176 */	ED_UNASSIGNED,		/* M-0 */
+	/* 177 */	ED_UNASSIGNED,		/* M-1 */
+	/* 178 */	ED_UNASSIGNED,		/* M-2 */
+	/* 179 */	ED_UNASSIGNED,		/* M-3 */
+	/* 180 */	ED_UNASSIGNED,		/* M-4 */
+	/* 181 */	ED_UNASSIGNED,		/* M-5 */
+	/* 182 */	ED_UNASSIGNED,		/* M-6 */
+	/* 183 */	ED_UNASSIGNED,		/* M-7 */
+	/* 184 */	ED_UNASSIGNED,		/* M-8 */
+	/* 185 */	ED_UNASSIGNED,		/* M-9 */
+	/* 186 */	ED_UNASSIGNED,		/* M-: */
+	/* 187 */	ED_UNASSIGNED,		/* M-; */
+	/* 188 */	ED_UNASSIGNED,		/* M-< */
+	/* 189 */	ED_UNASSIGNED,		/* M-= */
+	/* 190 */	ED_UNASSIGNED,		/* M-> */
+	/* 191 */	ED_UNASSIGNED,		/* M-? */
+	/* 192 */	ED_UNASSIGNED,		/* M-@ */
+	/* 193 */	ED_UNASSIGNED,		/* M-A */
+	/* 194 */	ED_UNASSIGNED,		/* M-B */
+	/* 195 */	ED_UNASSIGNED,		/* M-C */
+	/* 196 */	ED_UNASSIGNED,		/* M-D */
+	/* 197 */	ED_UNASSIGNED,		/* M-E */
+	/* 198 */	ED_UNASSIGNED,		/* M-F */
+	/* 199 */	ED_UNASSIGNED,		/* M-G */
+	/* 200 */	ED_UNASSIGNED,		/* M-H */
+	/* 201 */	ED_UNASSIGNED,		/* M-I */
+	/* 202 */	ED_UNASSIGNED,		/* M-J */
+	/* 203 */	ED_UNASSIGNED,		/* M-K */
+	/* 204 */	ED_UNASSIGNED,		/* M-L */
+	/* 205 */	ED_UNASSIGNED,		/* M-M */
+	/* 206 */	ED_UNASSIGNED,		/* M-N */
+	/* 207 */	ED_SEQUENCE_LEAD_IN,	/* M-O */
+	/* 208 */	ED_UNASSIGNED,		/* M-P */
+	/* 209 */	ED_UNASSIGNED,		/* M-Q */
+	/* 210 */	ED_UNASSIGNED,		/* M-R */
+	/* 211 */	ED_UNASSIGNED,		/* M-S */
+	/* 212 */	ED_UNASSIGNED,		/* M-T */
+	/* 213 */	ED_UNASSIGNED,		/* M-U */
+	/* 214 */	ED_UNASSIGNED,		/* M-V */
+	/* 215 */	ED_UNASSIGNED,		/* M-W */
+	/* 216 */	ED_UNASSIGNED,		/* M-X */
+	/* 217 */	ED_UNASSIGNED,		/* M-Y */
+	/* 218 */	ED_UNASSIGNED,		/* M-Z */
+	/* 219 */	ED_SEQUENCE_LEAD_IN,	/* M-[ */
+	/* 220 */	ED_UNASSIGNED,		/* M-\ */
+	/* 221 */	ED_UNASSIGNED,		/* M-] */
+	/* 222 */	ED_UNASSIGNED,		/* M-^ */
+	/* 223 */	ED_UNASSIGNED,		/* M-_ */
+	/* 224 */	ED_UNASSIGNED,		/* M-` */
+	/* 225 */	ED_UNASSIGNED,		/* M-a */
+	/* 226 */	ED_UNASSIGNED,		/* M-b */
+	/* 227 */	ED_UNASSIGNED,		/* M-c */
+	/* 228 */	ED_UNASSIGNED,		/* M-d */
+	/* 229 */	ED_UNASSIGNED,		/* M-e */
+	/* 230 */	ED_UNASSIGNED,		/* M-f */
+	/* 231 */	ED_UNASSIGNED,		/* M-g */
+	/* 232 */	ED_UNASSIGNED,		/* M-h */
+	/* 233 */	ED_UNASSIGNED,		/* M-i */
+	/* 234 */	ED_UNASSIGNED,		/* M-j */
+	/* 235 */	ED_UNASSIGNED,		/* M-k */
+	/* 236 */	ED_UNASSIGNED,		/* M-l */
+	/* 237 */	ED_UNASSIGNED,		/* M-m */
+	/* 238 */	ED_UNASSIGNED,		/* M-n */
+	/* 239 */	ED_UNASSIGNED,		/* M-o */
+	/* 240 */	ED_UNASSIGNED,		/* M-p */
+	/* 241 */	ED_UNASSIGNED,		/* M-q */
+	/* 242 */	ED_UNASSIGNED,		/* M-r */
+	/* 243 */	ED_UNASSIGNED,		/* M-s */
+	/* 244 */	ED_UNASSIGNED,		/* M-t */
+	/* 245 */	ED_UNASSIGNED,		/* M-u */
+	/* 246 */	ED_UNASSIGNED,		/* M-v */
+	/* 247 */	ED_UNASSIGNED,		/* M-w */
+	/* 248 */	ED_UNASSIGNED,		/* M-x */
+	/* 249 */	ED_UNASSIGNED,		/* M-y */
+	/* 250 */	ED_UNASSIGNED,		/* M-z */
+	/* 251 */	ED_UNASSIGNED,		/* M-{ */
+	/* 252 */	ED_UNASSIGNED,		/* M-| */
+	/* 253 */	ED_UNASSIGNED,		/* M-} */
+	/* 254 */	ED_UNASSIGNED,		/* M-~ */
+	/* 255 */	ED_UNASSIGNED		/* M-^? */
+};
+
+
+/* map_init():
+ *	Initialize and allocate the maps
+ */
+protected int
+map_init(EditLine *el)
+{
+
+	/*
+         * Make sure those are correct before starting.
+         */
+#ifdef MAP_DEBUG
+	if (sizeof(el_map_emacs) != N_KEYS * sizeof(el_action_t))
+		EL_ABORT((el->errfile, "Emacs map incorrect\n"));
+	if (sizeof(el_map_vi_command) != N_KEYS * sizeof(el_action_t))
+		EL_ABORT((el->errfile, "Vi command map incorrect\n"));
+	if (sizeof(el_map_vi_insert) != N_KEYS * sizeof(el_action_t))
+		EL_ABORT((el->errfile, "Vi insert map incorrect\n"));
+#endif
+
+	el->el_map.alt = (el_action_t *)el_malloc(sizeof(el_action_t) * N_KEYS);
+	if (el->el_map.alt == NULL)
+		return (-1);
+	el->el_map.key = (el_action_t *)el_malloc(sizeof(el_action_t) * N_KEYS);
+	if (el->el_map.key == NULL)
+		return (-1);
+	el->el_map.emacs = el_map_emacs;
+	el->el_map.vic = el_map_vi_command;
+	el->el_map.vii = el_map_vi_insert;
+	el->el_map.help = (el_bindings_t *) el_malloc(sizeof(el_bindings_t) *
+	    EL_NUM_FCNS);
+	if (el->el_map.help == NULL)
+		return (-1);
+	(void) memcpy(el->el_map.help, help__get(),
+	    sizeof(el_bindings_t) * EL_NUM_FCNS);
+	el->el_map.func = (el_func_t *)el_malloc(sizeof(el_func_t) *
+	    EL_NUM_FCNS);
+	if (el->el_map.func == NULL)
+		return (-1);
+	memcpy(el->el_map.func, func__get(), sizeof(el_func_t) * EL_NUM_FCNS);
+	el->el_map.nfunc = EL_NUM_FCNS;
+
+#ifdef VIDEFAULT
+	map_init_vi(el);
+#else
+	map_init_emacs(el);
+#endif /* VIDEFAULT */
+	return (0);
+}
+
+
+/* map_end():
+ *	Free the space taken by the editor maps
+ */
+protected void
+map_end(EditLine *el)
+{
+
+	el_free((ptr_t) el->el_map.alt);
+	el->el_map.alt = NULL;
+	el_free((ptr_t) el->el_map.key);
+	el->el_map.key = NULL;
+	el->el_map.emacs = NULL;
+	el->el_map.vic = NULL;
+	el->el_map.vii = NULL;
+	el_free((ptr_t) el->el_map.help);
+	el->el_map.help = NULL;
+	el_free((ptr_t) el->el_map.func);
+	el->el_map.func = NULL;
+}
+
+
+/* map_init_nls():
+ *	Find all the printable keys and bind them to self insert
+ */
+private void
+map_init_nls(EditLine *el)
+{
+	int i;
+
+	el_action_t *map = el->el_map.key;
+
+	for (i = 0200; i <= 0377; i++)
+		if (isprint(i))
+			map[i] = ED_INSERT;
+}
+
+
+/* map_init_meta():
+ *	Bind all the meta keys to the appropriate ESC-<key> sequence
+ */
+private void
+map_init_meta(EditLine *el)
+{
+	char buf[3];
+	int i;
+	el_action_t *map = el->el_map.key;
+	el_action_t *alt = el->el_map.alt;
+
+	for (i = 0; i <= 0377 && map[i] != EM_META_NEXT; i++)
+		continue;
+
+	if (i > 0377) {
+		for (i = 0; i <= 0377 && alt[i] != EM_META_NEXT; i++)
+			continue;
+		if (i > 0377) {
+			i = 033;
+			if (el->el_map.type == MAP_VI)
+				map = alt;
+		} else
+			map = alt;
+	}
+	buf[0] = (char) i;
+	buf[2] = 0;
+	for (i = 0200; i <= 0377; i++)
+		switch (map[i]) {
+		case ED_INSERT:
+		case ED_UNASSIGNED:
+		case ED_SEQUENCE_LEAD_IN:
+			break;
+		default:
+			buf[1] = i & 0177;
+			key_add(el, buf, key_map_cmd(el, (int) map[i]), XK_CMD);
+			break;
+		}
+	map[(int) buf[0]] = ED_SEQUENCE_LEAD_IN;
+}
+
+
+/* map_init_vi():
+ *	Initialize the vi bindings
+ */
+protected void
+map_init_vi(EditLine *el)
+{
+	int i;
+	el_action_t *key = el->el_map.key;
+	el_action_t *alt = el->el_map.alt;
+	const el_action_t *vii = el->el_map.vii;
+	const el_action_t *vic = el->el_map.vic;
+
+	el->el_map.type = MAP_VI;
+	el->el_map.current = el->el_map.key;
+
+	key_reset(el);
+
+	for (i = 0; i < N_KEYS; i++) {
+		key[i] = vii[i];
+		alt[i] = vic[i];
+	}
+
+	map_init_meta(el);
+	map_init_nls(el);
+
+	tty_bind_char(el, 1);
+	term_bind_arrow(el);
+}
+
+
+/* map_init_emacs():
+ *	Initialize the emacs bindings
+ */
+protected void
+map_init_emacs(EditLine *el)
+{
+	int i;
+	char buf[3];
+	el_action_t *key = el->el_map.key;
+	el_action_t *alt = el->el_map.alt;
+	const el_action_t *emacs = el->el_map.emacs;
+
+	el->el_map.type = MAP_EMACS;
+	el->el_map.current = el->el_map.key;
+	key_reset(el);
+
+	for (i = 0; i < N_KEYS; i++) {
+		key[i] = emacs[i];
+		alt[i] = ED_UNASSIGNED;
+	}
+
+	map_init_meta(el);
+	map_init_nls(el);
+
+	buf[0] = CONTROL('X');
+	buf[1] = CONTROL('X');
+	buf[2] = 0;
+	key_add(el, buf, key_map_cmd(el, EM_EXCHANGE_MARK), XK_CMD);
+
+	tty_bind_char(el, 1);
+	term_bind_arrow(el);
+}
+
+
+/* map_set_editor():
+ *	Set the editor
+ */
+protected int
+map_set_editor(EditLine *el, char *editor)
+{
+
+	if (strcmp(editor, "emacs") == 0) {
+		map_init_emacs(el);
+		return (0);
+	}
+	if (strcmp(editor, "vi") == 0) {
+		map_init_vi(el);
+		return (0);
+	}
+	return (-1);
+}
+
+
+/* map_get_editor():
+ *	Retrieve the editor
+ */
+protected int
+map_get_editor(EditLine *el, const char **editor)
+{
+
+	if (editor == NULL)
+		return (-1);
+	switch (el->el_map.type) {
+	case MAP_EMACS:
+		*editor = "emacs";
+		return (0);
+	case MAP_VI:
+		*editor = "vi";
+		return (0);
+	}
+	return (-1);
+}
+
+
+/* map_print_key():
+ *	Print the function description for 1 key
+ */
+private void
+map_print_key(EditLine *el, el_action_t *map, const char *in)
+{
+	char outbuf[EL_BUFSIZ];
+	el_bindings_t *bp, *ep;
+
+	if (in[0] == '\0' || in[1] == '\0') {
+		(void) key__decode_str(in, outbuf, sizeof(outbuf), "");
+		ep = &el->el_map.help[el->el_map.nfunc];
+		for (bp = el->el_map.help; bp < ep; bp++)
+			if (bp->func == map[(unsigned char) *in]) {
+				(void) fprintf(el->el_outfile,
+				    "%s\t->\t%s\n", outbuf, bp->name);
+				return;
+			}
+	} else
+		key_print(el, in);
+}
+
+
+/* map_print_some_keys():
+ *	Print keys from first to last
+ */
+private void
+map_print_some_keys(EditLine *el, el_action_t *map, int first, int last)
+{
+	el_bindings_t *bp, *ep;
+	char firstbuf[2], lastbuf[2];
+	char unparsbuf[EL_BUFSIZ], extrabuf[EL_BUFSIZ];
+
+	firstbuf[0] = first;
+	firstbuf[1] = 0;
+	lastbuf[0] = last;
+	lastbuf[1] = 0;
+	if (map[first] == ED_UNASSIGNED) {
+		if (first == last) {
+			(void) key__decode_str(firstbuf, unparsbuf, 
+			    sizeof(unparsbuf), STRQQ);
+			(void) fprintf(el->el_outfile,
+			    "%-15s->  is undefined\n", unparsbuf);
+		}
+		return;
+	}
+	ep = &el->el_map.help[el->el_map.nfunc];
+	for (bp = el->el_map.help; bp < ep; bp++) {
+		if (bp->func == map[first]) {
+			if (first == last) {
+				(void) key__decode_str(firstbuf, unparsbuf, 
+				    sizeof(unparsbuf), STRQQ);
+				(void) fprintf(el->el_outfile, "%-15s->  %s\n",
+				    unparsbuf, bp->name);
+			} else {
+				(void) key__decode_str(firstbuf, unparsbuf, 
+				    sizeof(unparsbuf), STRQQ);
+				(void) key__decode_str(lastbuf, extrabuf, 
+				    sizeof(extrabuf), STRQQ);
+				(void) fprintf(el->el_outfile,
+				    "%-4s to %-7s->  %s\n",
+				    unparsbuf, extrabuf, bp->name);
+			}
+			return;
+		}
+	}
+#ifdef MAP_DEBUG
+	if (map == el->el_map.key) {
+		(void) key__decode_str(firstbuf, unparsbuf, 
+		    sizeof(unparsbuf), STRQQ);
+		(void) fprintf(el->el_outfile,
+		    "BUG!!! %s isn't bound to anything.\n", unparsbuf);
+		(void) fprintf(el->el_outfile, "el->el_map.key[%d] == %d\n",
+		    first, el->el_map.key[first]);
+	} else {
+		(void) key__decode_str(firstbuf, unparsbuf, 
+		    sizeof(unparsbuf), STRQQ);
+		(void) fprintf(el->el_outfile,
+		    "BUG!!! %s isn't bound to anything.\n", unparsbuf);
+		(void) fprintf(el->el_outfile, "el->el_map.alt[%d] == %d\n",
+		    first, el->el_map.alt[first]);
+	}
+#endif
+	EL_ABORT((el->el_errfile, "Error printing keys\n"));
+}
+
+
+/* map_print_all_keys():
+ *	Print the function description for all keys.
+ */
+private void
+map_print_all_keys(EditLine *el)
+{
+	int prev, i;
+
+	(void) fprintf(el->el_outfile, "Standard key bindings\n");
+	prev = 0;
+	for (i = 0; i < N_KEYS; i++) {
+		if (el->el_map.key[prev] == el->el_map.key[i])
+			continue;
+		map_print_some_keys(el, el->el_map.key, prev, i - 1);
+		prev = i;
+	}
+	map_print_some_keys(el, el->el_map.key, prev, i - 1);
+
+	(void) fprintf(el->el_outfile, "Alternative key bindings\n");
+	prev = 0;
+	for (i = 0; i < N_KEYS; i++) {
+		if (el->el_map.alt[prev] == el->el_map.alt[i])
+			continue;
+		map_print_some_keys(el, el->el_map.alt, prev, i - 1);
+		prev = i;
+	}
+	map_print_some_keys(el, el->el_map.alt, prev, i - 1);
+
+	(void) fprintf(el->el_outfile, "Multi-character bindings\n");
+	key_print(el, "");
+	(void) fprintf(el->el_outfile, "Arrow key bindings\n");
+	term_print_arrow(el, "");
+}
+
+
+/* map_bind():
+ *	Add/remove/change bindings
+ */
+protected int
+map_bind(EditLine *el, int argc, const char **argv)
+{
+	el_action_t *map;
+	int ntype, rem;
+	const char *p;
+	char inbuf[EL_BUFSIZ];
+	char outbuf[EL_BUFSIZ];
+	const char *in = NULL;
+	char *out = NULL;
+	el_bindings_t *bp, *ep;
+	int cmd;
+	int key;
+
+	if (argv == NULL)
+		return (-1);
+
+	map = el->el_map.key;
+	ntype = XK_CMD;
+	key = rem = 0;
+	for (argc = 1; (p = argv[argc]) != NULL; argc++)
+		if (p[0] == '-')
+			switch (p[1]) {
+			case 'a':
+				map = el->el_map.alt;
+				break;
+
+			case 's':
+				ntype = XK_STR;
+				break;
+#ifdef notyet
+			case 'c':
+				ntype = XK_EXE;
+				break;
+#endif
+			case 'k':
+				key = 1;
+				break;
+
+			case 'r':
+				rem = 1;
+				break;
+
+			case 'v':
+				map_init_vi(el);
+				return (0);
+
+			case 'e':
+				map_init_emacs(el);
+				return (0);
+
+			case 'l':
+				ep = &el->el_map.help[el->el_map.nfunc];
+				for (bp = el->el_map.help; bp < ep; bp++)
+					(void) fprintf(el->el_outfile,
+					    "%s\n\t%s\n",
+					    bp->name, bp->description);
+				return (0);
+			default:
+				(void) fprintf(el->el_errfile,
+				    "%s: Invalid switch `%c'.\n",
+				    argv[0], p[1]);
+			}
+		else
+			break;
+
+	if (argv[argc] == NULL) {
+		map_print_all_keys(el);
+		return (0);
+	}
+	if (key)
+		in = argv[argc++];
+	else if ((in = parse__string(inbuf, argv[argc++])) == NULL) {
+		(void) fprintf(el->el_errfile,
+		    "%s: Invalid \\ or ^ in instring.\n",
+		    argv[0]);
+		return (-1);
+	}
+	if (rem) {
+		if (key) {
+			(void) term_clear_arrow(el, in);
+			return (-1);
+		}
+		if (in[1])
+			(void) key_delete(el, in);
+		else if (map[(unsigned char) *in] == ED_SEQUENCE_LEAD_IN)
+			(void) key_delete(el, in);
+		else
+			map[(unsigned char) *in] = ED_UNASSIGNED;
+		return (0);
+	}
+	if (argv[argc] == NULL) {
+		if (key)
+			term_print_arrow(el, in);
+		else
+			map_print_key(el, map, in);
+		return (0);
+	}
+#ifdef notyet
+	if (argv[argc + 1] != NULL) {
+		bindkey_usage();
+		return (-1);
+	}
+#endif
+
+	switch (ntype) {
+	case XK_STR:
+	case XK_EXE:
+		if ((out = parse__string(outbuf, argv[argc])) == NULL) {
+			(void) fprintf(el->el_errfile,
+			    "%s: Invalid \\ or ^ in outstring.\n", argv[0]);
+			return (-1);
+		}
+		if (key)
+			term_set_arrow(el, in, key_map_str(el, out), ntype);
+		else
+			key_add(el, in, key_map_str(el, out), ntype);
+		map[(unsigned char) *in] = ED_SEQUENCE_LEAD_IN;
+		break;
+
+	case XK_CMD:
+		if ((cmd = parse_cmd(el, argv[argc])) == -1) {
+			(void) fprintf(el->el_errfile,
+			    "%s: Invalid command `%s'.\n", argv[0], argv[argc]);
+			return (-1);
+		}
+		if (key)
+			term_set_arrow(el, in, key_map_str(el, out), ntype);
+		else {
+			if (in[1]) {
+				key_add(el, in, key_map_cmd(el, cmd), ntype);
+				map[(unsigned char) *in] = ED_SEQUENCE_LEAD_IN;
+			} else {
+				key_clear(el, map, in);
+				map[(unsigned char) *in] = cmd;
+			}
+		}
+		break;
+
+	default:
+		EL_ABORT((el->el_errfile, "Bad XK_ type %d\n", ntype));
+		break;
+	}
+	return (0);
+}
+
+
+/* map_addfunc():
+ *	add a user defined function
+ */
+protected int
+map_addfunc(EditLine *el, const char *name, const char *help, el_func_t func)
+{
+	void *p;
+	int nf = el->el_map.nfunc + 1;
+
+	if (name == NULL || help == NULL || func == NULL)
+		return (-1);
+
+	if ((p = el_realloc(el->el_map.func, nf * sizeof(el_func_t))) == NULL)
+		return (-1);
+	el->el_map.func = (el_func_t *) p;
+	if ((p = el_realloc(el->el_map.help, nf * sizeof(el_bindings_t)))
+	    == NULL)
+		return (-1);
+	el->el_map.help = (el_bindings_t *) p;
+
+	nf = el->el_map.nfunc;
+	el->el_map.func[nf] = func;
+
+	el->el_map.help[nf].name = name;
+	el->el_map.help[nf].func = nf;
+	el->el_map.help[nf].description = help;
+	el->el_map.nfunc++;
+
+	return (0);
+}
diff --git a/frontend/libedit/map.h b/frontend/libedit/map.h
new file mode 100644
index 0000000..3b08f48
--- /dev/null
+++ b/frontend/libedit/map.h
@@ -0,0 +1,75 @@
+/*	$NetBSD: map.h,v 1.8 2003/08/07 16:44:32 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)map.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.map.h:	Editor maps
+ */
+#ifndef _h_el_map
+#define	_h_el_map
+
+typedef struct el_bindings_t {	/* for the "bind" shell command */
+	const char	*name;		/* function name for bind command */
+	int		 func;		/* function numeric value */
+	const char	*description;	/* description of function */
+} el_bindings_t;
+
+
+typedef struct el_map_t {
+	el_action_t	*alt;		/* The current alternate key map */
+	el_action_t	*key;		/* The current normal key map	*/
+	el_action_t	*current;	/* The keymap we are using	*/
+	const el_action_t *emacs;	/* The default emacs key map	*/
+	const el_action_t *vic;		/* The vi command mode key map	*/
+	const el_action_t *vii;		/* The vi insert mode key map	*/
+	int		 type;		/* Emacs or vi			*/
+	el_bindings_t	*help;		/* The help for the editor functions */
+	el_func_t	*func;		/* List of available functions	*/
+	int		 nfunc;		/* The number of functions/help items */
+} el_map_t;
+
+#define	MAP_EMACS	0
+#define	MAP_VI		1
+
+protected int	map_bind(EditLine *, int, const char **);
+protected int	map_init(EditLine *);
+protected void	map_end(EditLine *);
+protected void	map_init_vi(EditLine *);
+protected void	map_init_emacs(EditLine *);
+protected int	map_set_editor(EditLine *, char *);
+protected int	map_get_editor(EditLine *, const char **);
+protected int	map_addfunc(EditLine *, const char *, const char *, el_func_t);
+
+#endif /* _h_el_map */
diff --git a/frontend/libedit/mono-debugger-readline.c b/frontend/libedit/mono-debugger-readline.c
new file mode 100644
index 0000000..295240c
--- /dev/null
+++ b/frontend/libedit/mono-debugger-readline.c
@@ -0,0 +1,125 @@
+#include "config.h"
+#include <mono-debugger-readline.h>
+#include <signal.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+extern int rl_catch_signals;
+extern int rl_attempted_completion_over;
+
+static gboolean in_readline = FALSE;
+
+void
+mono_debugger_readline_static_init (void)
+{
+	rl_catch_signals = 1;
+	// rl_set_signals ();
+
+	rl_readline_name = "mdb";
+	rl_terminal_name = getenv ("TERM");
+}
+
+int
+mono_debugger_readline_is_a_tty (int fd)
+{
+	return isatty (fd);
+}
+
+char *
+mono_debugger_readline_readline (const char *prompt)
+{
+	char *line;
+	char *retval = NULL;
+
+	g_assert (!in_readline);
+	in_readline = TRUE;
+
+	line = readline (prompt);
+	retval = g_strdup (line);
+	if (line)
+		free (line);
+
+	in_readline = FALSE;
+	return retval;
+}
+
+void
+mono_debugger_readline_add_history (const char *line)
+{
+	add_history (line);
+}
+
+char*
+mono_debugger_readline_current_line_buffer (void)
+{
+	return g_strdup (rl_line_buffer);
+}
+
+extern int
+mono_debugger_readline_get_columns (void)
+{
+	int cols = 80;
+
+#if 0 /* FIXME */
+	rl_get_screen_size (NULL, &cols);
+#endif
+
+	return cols;
+}
+
+
+/* Completion stuff */
+
+int
+mono_debugger_readline_get_filename_completion_desired (void)
+{
+	return rl_filename_completion_desired;
+}
+    
+void
+mono_debugger_readline_set_filename_completion_desired (int v)
+{
+	rl_filename_completion_desired = v;
+}
+
+static CompletionDelegate completion_cb;
+static char **my_completion_matches = NULL;
+
+void
+mono_debugger_readline_set_completion_matches (char **matches, int count)
+{
+	int i;
+
+	rl_attempted_completion_over = 1;
+
+	if (count == 0){
+		my_completion_matches = NULL;
+		return;
+	}
+
+	my_completion_matches = (char**)malloc (count * sizeof (char*));
+	  
+	for (i = 0; i < count; i ++)
+		my_completion_matches[i] = matches[i] ? strdup (matches[i]) : NULL;
+}
+
+static char**
+mono_debugger_readline_completion_function (const char *text, int start, int end)
+{
+	my_completion_matches = NULL;
+
+	if (completion_cb) {
+		completion_cb (text, start, end);
+	}
+	return my_completion_matches;
+}
+
+void
+mono_debugger_readline_enable_completion (CompletionDelegate cb)
+{
+	rl_attempted_completion_function = mono_debugger_readline_completion_function;
+
+	completion_cb = cb;
+}
+
diff --git a/frontend/libedit/mono-debugger-readline.h b/frontend/libedit/mono-debugger-readline.h
new file mode 100644
index 0000000..c547c75
--- /dev/null
+++ b/frontend/libedit/mono-debugger-readline.h
@@ -0,0 +1,27 @@
+#ifndef __MONO_DEBUGGER_READLINE_H__
+#define __MONO_DEBUGGER_READLINE_H__
+
+#include <glib.h>
+#include <stdio.h>
+#include <readline.h>
+
+G_BEGIN_DECLS
+
+typedef void (*CompletionDelegate)(const char *text, int start, int end);
+
+extern void mono_debugger_readline_static_init (void);
+extern int mono_debugger_readline_is_a_tty (int fd);
+extern char *mono_debugger_readline_readline (const char *prompt);
+extern void mono_debugger_readline_add_history (const char *line);
+extern void mono_debugger_readline_set_completion_matches (char **matches, int count);
+extern void mono_debugger_readline_enable_completion (CompletionDelegate cb);
+extern char* mono_debugger_readline_current_line_buffer (void);
+
+extern int mono_debugger_readline_get_filename_completion_desired (void);
+extern void mono_debugger_readline_set_filename_completion_desired (int v);
+
+extern int mono_debugger_readline_get_columns (void);
+
+G_END_DECLS
+
+#endif
diff --git a/frontend/libedit/parse.c b/frontend/libedit/parse.c
new file mode 100644
index 0000000..bf5ba3e
--- /dev/null
+++ b/frontend/libedit/parse.c
@@ -0,0 +1,257 @@
+/*	$NetBSD: parse.c,v 1.22 2005/05/29 04:58:15 lukem Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * parse.c: parse an editline extended command
+ *
+ * commands are:
+ *
+ *	bind
+ *	echotc
+ *	edit
+ *	gettc
+ *	history
+ *	settc
+ *	setty
+ */
+#include "el.h"
+#include <stdlib.h>
+
+private const struct {
+	const char *name;
+	int (*func)(EditLine *, int, const char **);
+} cmds[] = {
+	{ "bind",	map_bind	},
+	{ "echotc",	term_echotc	},
+	{ "edit",	el_editmode	},
+	{ "history",	hist_command	},
+	{ "telltc",	term_telltc	},
+	{ "settc",	term_settc	},
+	{ "setty",	tty_stty	},
+	{ NULL,		NULL		}
+};
+
+
+/* parse_line():
+ *	Parse a line and dispatch it
+ */
+protected int
+parse_line(EditLine *el, const char *line)
+{
+	const char **argv;
+	int argc;
+	Tokenizer *tok;
+
+	tok = tok_init(NULL);
+	tok_str(tok, line, &argc, &argv);
+	argc = el_parse(el, argc, argv);
+	tok_end(tok);
+	return (argc);
+}
+
+
+/* el_parse():
+ *	Command dispatcher
+ */
+public int
+el_parse(EditLine *el, int argc, const char *argv[])
+{
+	const char *ptr;
+	int i;
+
+	if (argc < 1)
+		return (-1);
+	ptr = strchr(argv[0], ':');
+	if (ptr != NULL) {
+		char *tprog;
+		size_t l;
+
+		if (ptr == argv[0])
+			return (0);
+		l = ptr - argv[0] - 1;
+		tprog = (char *) el_malloc(l + 1);
+		if (tprog == NULL)
+			return (0);
+		(void) strncpy(tprog, argv[0], l);
+		tprog[l] = '\0';
+		ptr++;
+		l = el_match(el->el_prog, tprog);
+		el_free(tprog);
+		if (!l)
+			return (0);
+	} else
+		ptr = argv[0];
+
+	for (i = 0; cmds[i].name != NULL; i++)
+		if (strcmp(cmds[i].name, ptr) == 0) {
+			i = (*cmds[i].func) (el, argc, argv);
+			return (-i);
+		}
+	return (-1);
+}
+
+
+/* parse__escape():
+ *	Parse a string of the form ^<char> \<odigit> \<char> and return
+ *	the appropriate character or -1 if the escape is not valid
+ */
+protected int
+parse__escape(const char **ptr)
+{
+	const char *p;
+	int c;
+
+	p = *ptr;
+
+	if (p[1] == 0)
+		return (-1);
+
+	if (*p == '\\') {
+		p++;
+		switch (*p) {
+		case 'a':
+			c = '\007';	/* Bell */
+			break;
+		case 'b':
+			c = '\010';	/* Backspace */
+			break;
+		case 't':
+			c = '\011';	/* Horizontal Tab */
+			break;
+		case 'n':
+			c = '\012';	/* New Line */
+			break;
+		case 'v':
+			c = '\013';	/* Vertical Tab */
+			break;
+		case 'f':
+			c = '\014';	/* Form Feed */
+			break;
+		case 'r':
+			c = '\015';	/* Carriage Return */
+			break;
+		case 'e':
+			c = '\033';	/* Escape */
+			break;
+		case '0':
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+		case '5':
+		case '6':
+		case '7':
+		{
+			int cnt, ch;
+
+			for (cnt = 0, c = 0; cnt < 3; cnt++) {
+				ch = *p++;
+				if (ch < '0' || ch > '7') {
+					p--;
+					break;
+				}
+				c = (c << 3) | (ch - '0');
+			}
+			if ((c & 0xffffff00) != 0)
+				return (-1);
+			--p;
+			break;
+		}
+		default:
+			c = *p;
+			break;
+		}
+	} else if (*p == '^') {
+		p++;
+		c = (*p == '?') ? '\177' : (*p & 0237);
+	} else
+		c = *p;
+	*ptr = ++p;
+	return (c);
+}
+
+/* parse__string():
+ *	Parse the escapes from in and put the raw string out
+ */
+protected char *
+parse__string(char *out, const char *in)
+{
+	char *rv = out;
+	int n;
+
+	for (;;)
+		switch (*in) {
+		case '\0':
+			*out = '\0';
+			return (rv);
+
+		case '\\':
+		case '^':
+			if ((n = parse__escape(&in)) == -1)
+				return (NULL);
+			*out++ = n;
+			break;
+
+		case 'M':
+			if (in[1] == '-' && in[2] != '\0') {
+				*out++ = '\033';
+				in += 2;
+				break;
+			}
+			/*FALLTHROUGH*/
+
+		default:
+			*out++ = *in++;
+			break;
+		}
+}
+
+
+/* parse_cmd():
+ *	Return the command number for the command string given
+ *	or -1 if one is not found
+ */
+protected int
+parse_cmd(EditLine *el, const char *cmd)
+{
+	el_bindings_t *b;
+
+	for (b = el->el_map.help; b->name != NULL; b++)
+		if (strcmp(b->name, cmd) == 0)
+			return (b->func);
+	return (-1);
+}
diff --git a/frontend/libedit/parse.h b/frontend/libedit/parse.h
new file mode 100644
index 0000000..58dced1
--- /dev/null
+++ b/frontend/libedit/parse.h
@@ -0,0 +1,48 @@
+/*	$NetBSD: parse.h,v 1.6 2005/05/29 04:58:15 lukem Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)parse.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.parse.h: Parser functions
+ */
+#ifndef _h_el_parse
+#define	_h_el_parse
+
+protected int	 parse_line(EditLine *, const char *);
+protected int	 parse__escape(const char **);
+protected char	*parse__string(char *, const char *);
+protected int	 parse_cmd(EditLine *, const char *);
+
+#endif /* _h_el_parse */
diff --git a/frontend/libedit/prompt.c b/frontend/libedit/prompt.c
new file mode 100644
index 0000000..3ec9284
--- /dev/null
+++ b/frontend/libedit/prompt.c
@@ -0,0 +1,164 @@
+/*	$NetBSD: prompt.c,v 1.11 2003/08/07 16:44:32 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * prompt.c: Prompt printing functions
+ */
+#include <stdio.h>
+#include "el.h"
+
+private char	*prompt_default(EditLine *);
+private char	*prompt_default_r(EditLine *);
+
+/* prompt_default():
+ *	Just a default prompt, in case the user did not provide one
+ */
+private char *
+/*ARGSUSED*/
+prompt_default(EditLine *el __attribute__((__unused__)))
+{
+	static char a[3] = {'?', ' ', '\0'};
+
+	return (a);
+}
+
+
+/* prompt_default_r():
+ *	Just a default rprompt, in case the user did not provide one
+ */
+private char *
+/*ARGSUSED*/
+prompt_default_r(EditLine *el __attribute__((__unused__)))
+{
+	static char a[1] = {'\0'};
+
+	return (a);
+}
+
+
+/* prompt_print():
+ *	Print the prompt and update the prompt position.
+ *	We use an array of integers in case we want to pass
+ * 	literal escape sequences in the prompt and we want a
+ *	bit to flag them
+ */
+protected void
+prompt_print(EditLine *el, int op)
+{
+	el_prompt_t *elp;
+	char *p;
+
+	if (op == EL_PROMPT)
+		elp = &el->el_prompt;
+	else
+		elp = &el->el_rprompt;
+	p = (elp->p_func) (el);
+	while (*p)
+		re_putc(el, *p++, 1);
+
+	elp->p_pos.v = el->el_refresh.r_cursor.v;
+	elp->p_pos.h = el->el_refresh.r_cursor.h;
+}
+
+
+/* prompt_init():
+ *	Initialize the prompt stuff
+ */
+protected int
+prompt_init(EditLine *el)
+{
+
+	el->el_prompt.p_func = prompt_default;
+	el->el_prompt.p_pos.v = 0;
+	el->el_prompt.p_pos.h = 0;
+	el->el_rprompt.p_func = prompt_default_r;
+	el->el_rprompt.p_pos.v = 0;
+	el->el_rprompt.p_pos.h = 0;
+	return (0);
+}
+
+
+/* prompt_end():
+ *	Clean up the prompt stuff
+ */
+protected void
+/*ARGSUSED*/
+prompt_end(EditLine *el __attribute__((__unused__)))
+{
+}
+
+
+/* prompt_set():
+ *	Install a prompt printing function
+ */
+protected int
+prompt_set(EditLine *el, el_pfunc_t prf, int op)
+{
+	el_prompt_t *p;
+
+	if (op == EL_PROMPT)
+		p = &el->el_prompt;
+	else
+		p = &el->el_rprompt;
+	if (prf == NULL) {
+		if (op == EL_PROMPT)
+			p->p_func = prompt_default;
+		else
+			p->p_func = prompt_default_r;
+	} else
+		p->p_func = prf;
+	p->p_pos.v = 0;
+	p->p_pos.h = 0;
+	return (0);
+}
+
+
+/* prompt_get():
+ *	Retrieve the prompt printing function
+ */
+protected int
+prompt_get(EditLine *el, el_pfunc_t *prf, int op)
+{
+
+	if (prf == NULL)
+		return (-1);
+	if (op == EL_PROMPT)
+		*prf = el->el_prompt.p_func;
+	else
+		*prf = el->el_rprompt.p_func;
+	return (0);
+}
diff --git a/frontend/libedit/prompt.h b/frontend/libedit/prompt.h
new file mode 100644
index 0000000..d181108
--- /dev/null
+++ b/frontend/libedit/prompt.h
@@ -0,0 +1,58 @@
+/*	$NetBSD: prompt.h,v 1.6 2003/08/07 16:44:32 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)prompt.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.prompt.h: Prompt printing stuff
+ */
+#ifndef _h_el_prompt
+#define	_h_el_prompt
+
+#include "histedit.h"
+
+typedef char * (*el_pfunc_t)(EditLine*);
+
+typedef struct el_prompt_t {
+	el_pfunc_t	p_func;	/* Function to return the prompt	*/
+	coord_t		p_pos;	/* position in the line after prompt	*/
+} el_prompt_t;
+
+protected void	prompt_print(EditLine *, int);
+protected int	prompt_set(EditLine *, el_pfunc_t, int);
+protected int	prompt_get(EditLine *, el_pfunc_t *, int);
+protected int	prompt_init(EditLine *);
+protected void	prompt_end(EditLine *);
+
+#endif /* _h_el_prompt */
diff --git a/frontend/libedit/read.c b/frontend/libedit/read.c
new file mode 100644
index 0000000..e3b1ffd
--- /dev/null
+++ b/frontend/libedit/read.c
@@ -0,0 +1,606 @@
+/*	$NetBSD: read.c,v 1.39 2005/08/02 12:11:14 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * read.c: Clean this junk up! This is horrible code.
+ *	   Terminal read functions
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include "el.h"
+
+#define	OKCMD	-1
+
+private int	read__fixio(int, int);
+private int	read_preread(EditLine *);
+private int	read_char(EditLine *, char *);
+private int	read_getcmd(EditLine *, el_action_t *, char *);
+
+/* read_init():
+ *	Initialize the read stuff
+ */
+protected int
+read_init(EditLine *el)
+{
+	/* builtin read_char */
+	el->el_read.read_char = read_char;
+	return 0;
+}
+
+
+/* el_read_setfn():
+ *	Set the read char function to the one provided.
+ *	If it is set to EL_BUILTIN_GETCFN, then reset to the builtin one.
+ */
+protected int
+el_read_setfn(EditLine *el, el_rfunc_t rc)
+{
+	el->el_read.read_char = (rc == EL_BUILTIN_GETCFN) ? read_char : rc;
+	return 0;
+}
+
+
+/* el_read_getfn():
+ *	return the current read char function, or EL_BUILTIN_GETCFN
+ *	if it is the default one
+ */
+protected el_rfunc_t
+el_read_getfn(EditLine *el)
+{
+       return (el->el_read.read_char == read_char) ?
+	    EL_BUILTIN_GETCFN : el->el_read.read_char;
+}
+
+
+#ifndef MIN
+#define MIN(A,B) ((A) < (B) ? (A) : (B))
+#endif
+
+#ifdef DEBUG_EDIT
+private void
+read_debug(EditLine *el)
+{
+
+	if (el->el_line.cursor > el->el_line.lastchar)
+		(void) fprintf(el->el_errfile, "cursor > lastchar\r\n");
+	if (el->el_line.cursor < el->el_line.buffer)
+		(void) fprintf(el->el_errfile, "cursor < buffer\r\n");
+	if (el->el_line.cursor > el->el_line.limit)
+		(void) fprintf(el->el_errfile, "cursor > limit\r\n");
+	if (el->el_line.lastchar > el->el_line.limit)
+		(void) fprintf(el->el_errfile, "lastchar > limit\r\n");
+	if (el->el_line.limit != &el->el_line.buffer[EL_BUFSIZ - 2])
+		(void) fprintf(el->el_errfile, "limit != &buffer[EL_BUFSIZ-2]\r\n");
+}
+#endif /* DEBUG_EDIT */
+
+
+/* read__fixio():
+ *	Try to recover from a read error
+ */
+/* ARGSUSED */
+private int
+read__fixio(int fd __attribute__((__unused__)), int e)
+{
+
+	switch (e) {
+	case -1:		/* Make sure that the code is reachable */
+
+#ifdef EWOULDBLOCK
+	case EWOULDBLOCK:
+#ifndef TRY_AGAIN
+#define	TRY_AGAIN
+#endif
+#endif /* EWOULDBLOCK */
+
+#if defined(POSIX) && defined(EAGAIN)
+#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
+	case EAGAIN:
+#ifndef TRY_AGAIN
+#define	TRY_AGAIN
+#endif
+#endif /* EWOULDBLOCK && EWOULDBLOCK != EAGAIN */
+#endif /* POSIX && EAGAIN */
+
+		e = 0;
+#ifdef TRY_AGAIN
+#if defined(F_SETFL) && defined(O_NDELAY)
+		if ((e = fcntl(fd, F_GETFL, 0)) == -1)
+			return (-1);
+
+		if (fcntl(fd, F_SETFL, e & ~O_NDELAY) == -1)
+			return (-1);
+		else
+			e = 1;
+#endif /* F_SETFL && O_NDELAY */
+
+#ifdef FIONBIO
+		{
+			int zero = 0;
+
+			if (ioctl(fd, FIONBIO, (ioctl_t) & zero) == -1)
+				return (-1);
+			else
+				e = 1;
+		}
+#endif /* FIONBIO */
+
+#endif /* TRY_AGAIN */
+		return (e ? 0 : -1);
+
+	case EINTR:
+		return (0);
+
+	default:
+		return (-1);
+	}
+}
+
+
+/* read_preread():
+ *	Try to read the stuff in the input queue;
+ */
+private int
+read_preread(EditLine *el)
+{
+	int chrs = 0;
+
+	if (el->el_tty.t_mode == ED_IO)
+		return (0);
+
+#ifdef FIONREAD
+	(void) ioctl(el->el_infd, FIONREAD, (ioctl_t) & chrs);
+	if (chrs > 0) {
+		char buf[EL_BUFSIZ];
+
+		chrs = read(el->el_infd, buf,
+		    (size_t) MIN(chrs, EL_BUFSIZ - 1));
+		if (chrs > 0) {
+			buf[chrs] = '\0';
+			el_push(el, buf);
+		}
+	}
+#endif /* FIONREAD */
+
+	return (chrs > 0);
+}
+
+
+/* el_push():
+ *	Push a macro
+ */
+public void
+el_push(EditLine *el, char *str)
+{
+	c_macro_t *ma = &el->el_chared.c_macro;
+
+	if (str != NULL && ma->level + 1 < EL_MAXMACRO) {
+		ma->level++;
+		if ((ma->macro[ma->level] = el_strdup(str)) != NULL)
+			return;
+		ma->level--;
+	}
+	term_beep(el);
+	term__flush();
+}
+
+
+/* read_getcmd():
+ *	Return next command from the input stream.
+ */
+private int
+read_getcmd(EditLine *el, el_action_t *cmdnum, char *ch)
+{
+	el_action_t cmd;
+	int num;
+
+	do {
+		if ((num = el_getc(el, ch)) != 1)	/* if EOF or error */
+			return (num);
+
+#ifdef	KANJI
+		if ((*ch & 0200)) {
+			el->el_state.metanext = 0;
+			cmd = CcViMap[' '];
+			break;
+		} else
+#endif /* KANJI */
+
+		if (el->el_state.metanext) {
+			el->el_state.metanext = 0;
+			*ch |= 0200;
+		}
+		cmd = el->el_map.current[(unsigned char) *ch];
+		if (cmd == ED_SEQUENCE_LEAD_IN) {
+			key_value_t val;
+			switch (key_get(el, ch, &val)) {
+			case XK_CMD:
+				cmd = val.cmd;
+				break;
+			case XK_STR:
+				el_push(el, val.str);
+				break;
+#ifdef notyet
+			case XK_EXE:
+				/* XXX: In the future to run a user function */
+				RunCommand(val.str);
+				break;
+#endif
+			default:
+				EL_ABORT((el->el_errfile, "Bad XK_ type \n"));
+				break;
+			}
+		}
+		if (el->el_map.alt == NULL)
+			el->el_map.current = el->el_map.key;
+	} while (cmd == ED_SEQUENCE_LEAD_IN);
+	*cmdnum = cmd;
+	return (OKCMD);
+}
+
+
+/* read_char():
+ *	Read a character from the tty.
+ */
+private int
+read_char(EditLine *el, char *cp)
+{
+	int num_read;
+	int tried = 0;
+
+	while ((num_read = read(el->el_infd, cp, 1)) == -1)
+		if (!tried && read__fixio(el->el_infd, errno) == 0)
+			tried = 1;
+		else {
+			*cp = '\0';
+			return (-1);
+		}
+
+	return (num_read);
+}
+
+
+/* el_getc():
+ *	Read a character
+ */
+public int
+el_getc(EditLine *el, char *cp)
+{
+	int num_read;
+	c_macro_t *ma = &el->el_chared.c_macro;
+
+	term__flush();
+	for (;;) {
+		if (ma->level < 0) {
+			if (!read_preread(el))
+				break;
+		}
+		if (ma->level < 0)
+			break;
+
+		if (ma->macro[ma->level][ma->offset] == '\0') {
+			el_free(ma->macro[ma->level--]);
+			ma->offset = 0;
+			continue;
+		}
+		*cp = ma->macro[ma->level][ma->offset++] & 0377;
+		if (ma->macro[ma->level][ma->offset] == '\0') {
+			/* Needed for QuoteMode On */
+			el_free(ma->macro[ma->level--]);
+			ma->offset = 0;
+		}
+		return (1);
+	}
+
+#ifdef DEBUG_READ
+	(void) fprintf(el->el_errfile, "Turning raw mode on\n");
+#endif /* DEBUG_READ */
+	if (tty_rawmode(el) < 0)/* make sure the tty is set up correctly */
+		return (0);
+
+#ifdef DEBUG_READ
+	(void) fprintf(el->el_errfile, "Reading a character\n");
+#endif /* DEBUG_READ */
+	num_read = (*el->el_read.read_char)(el, cp);
+#ifdef DEBUG_READ
+	(void) fprintf(el->el_errfile, "Got it %c\n", *cp);
+#endif /* DEBUG_READ */
+	return (num_read);
+}
+
+protected void
+read_prepare(EditLine *el)
+{
+	if (el->el_flags & HANDLE_SIGNALS)
+		sig_set(el);
+	if (el->el_flags & NO_TTY)
+		return;
+	if ((el->el_flags & (UNBUFFERED|EDIT_DISABLED)) == UNBUFFERED)
+		tty_rawmode(el);
+
+	/* This is relatively cheap, and things go terribly wrong if
+	   we have the wrong size. */
+	el_resize(el);
+	re_clear_display(el);	/* reset the display stuff */
+	ch_reset(el, 0);
+	re_refresh(el);		/* print the prompt */
+
+	if (el->el_flags & UNBUFFERED)
+		term__flush();
+}
+
+protected void
+read_finish(EditLine *el)
+{
+	if ((el->el_flags & UNBUFFERED) == 0)
+		(void) tty_cookedmode(el);
+	if (el->el_flags & HANDLE_SIGNALS)
+		sig_clr(el);
+}
+
+public const char *
+el_gets(EditLine *el, int *nread)
+{
+	int retval;
+	el_action_t cmdnum = 0;
+	int num;		/* how many chars we have read at NL */
+	char ch;
+	int crlf = 0;
+#ifdef FIONREAD
+	c_macro_t *ma = &el->el_chared.c_macro;
+#endif /* FIONREAD */
+
+	if (el->el_flags & NO_TTY) {
+		char *cp = el->el_line.buffer;
+		size_t idx;
+
+		while ((*el->el_read.read_char)(el, cp) == 1) {
+			/* make sure there is space for next character */
+			if (cp + 1 >= el->el_line.limit) {
+				idx = (cp - el->el_line.buffer);
+				if (!ch_enlargebufs(el, 2))
+					break;
+				cp = &el->el_line.buffer[idx];
+			}
+			cp++;
+			if (el->el_flags & UNBUFFERED)
+				break;
+			if (cp[-1] == '\r' || cp[-1] == '\n')
+				break;
+		}
+
+		el->el_line.cursor = el->el_line.lastchar = cp;
+		*cp = '\0';
+		if (nread)
+			*nread = el->el_line.cursor - el->el_line.buffer;
+		return (el->el_line.buffer);
+	}
+
+
+#ifdef FIONREAD
+	if (el->el_tty.t_mode == EX_IO && ma->level < 0) {
+		long chrs = 0;
+
+		(void) ioctl(el->el_infd, FIONREAD, (ioctl_t) & chrs);
+		if (chrs == 0) {
+			if (tty_rawmode(el) < 0) {
+				if (nread)
+					*nread = 0;
+				return (NULL);
+			}
+		}
+	}
+#endif /* FIONREAD */
+
+	if ((el->el_flags & UNBUFFERED) == 0)
+		read_prepare(el);
+
+	if (el->el_flags & EDIT_DISABLED) {
+		char *cp;
+		size_t idx;
+		if ((el->el_flags & UNBUFFERED) == 0)
+			cp = el->el_line.buffer;
+		else
+			cp = el->el_line.lastchar;
+
+		term__flush();
+
+		while ((*el->el_read.read_char)(el, cp) == 1) {
+			/* make sure there is space next character */
+			if (cp + 1 >= el->el_line.limit) {
+				idx = (cp - el->el_line.buffer);
+				if (!ch_enlargebufs(el, 2))
+					break;
+				cp = &el->el_line.buffer[idx];
+			}
+			if (*cp == 4)	/* ought to be stty eof */
+				break;
+			cp++;
+			crlf = cp[-1] == '\r' || cp[-1] == '\n';
+			if (el->el_flags & UNBUFFERED)
+				break;
+			if (crlf)
+				break;
+		}
+
+		el->el_line.cursor = el->el_line.lastchar = cp;
+		*cp = '\0';
+		if (nread)
+			*nread = el->el_line.cursor - el->el_line.buffer;
+		return (el->el_line.buffer);
+	}
+
+	for (num = OKCMD; num == OKCMD;) {	/* while still editing this
+						 * line */
+#ifdef DEBUG_EDIT
+		read_debug(el);
+#endif /* DEBUG_EDIT */
+		/* if EOF or error */
+		if ((num = read_getcmd(el, &cmdnum, &ch)) != OKCMD) {
+#ifdef DEBUG_READ
+			(void) fprintf(el->el_errfile,
+			    "Returning from el_gets %d\n", num);
+#endif /* DEBUG_READ */
+			break;
+		}
+		if ((unsigned int)cmdnum >= el->el_map.nfunc) {	/* BUG CHECK command */
+#ifdef DEBUG_EDIT
+			(void) fprintf(el->el_errfile,
+			    "ERROR: illegal command from key 0%o\r\n", ch);
+#endif /* DEBUG_EDIT */
+			continue;	/* try again */
+		}
+		/* now do the real command */
+#ifdef DEBUG_READ
+		{
+			el_bindings_t *b;
+			for (b = el->el_map.help; b->name; b++)
+				if (b->func == cmdnum)
+					break;
+			if (b->name)
+				(void) fprintf(el->el_errfile,
+				    "Executing %s\n", b->name);
+			else
+				(void) fprintf(el->el_errfile,
+				    "Error command = %d\n", cmdnum);
+		}
+#endif /* DEBUG_READ */
+		/* vi redo needs these way down the levels... */
+		el->el_state.thiscmd = cmdnum;
+		el->el_state.thisch = ch;
+		if (el->el_map.type == MAP_VI &&
+		    el->el_map.current == el->el_map.key &&
+		    el->el_chared.c_redo.pos < el->el_chared.c_redo.lim) {
+			if (cmdnum == VI_DELETE_PREV_CHAR &&
+			    el->el_chared.c_redo.pos != el->el_chared.c_redo.buf
+			    && isprint((unsigned char)el->el_chared.c_redo.pos[-1]))
+				el->el_chared.c_redo.pos--;
+			else
+				*el->el_chared.c_redo.pos++ = ch;
+		}
+		retval = (*el->el_map.func[cmdnum]) (el, ch);
+#ifdef DEBUG_READ
+		(void) fprintf(el->el_errfile,
+			"Returned state %d\n", retval );
+#endif /* DEBUG_READ */
+
+		/* save the last command here */
+		el->el_state.lastcmd = cmdnum;
+
+		/* use any return value */
+		switch (retval) {
+		case CC_CURSOR:
+			re_refresh_cursor(el);
+			break;
+
+		case CC_REDISPLAY:
+			re_clear_lines(el);
+			re_clear_display(el);
+			/* FALLTHROUGH */
+
+		case CC_REFRESH:
+			re_refresh(el);
+			break;
+
+		case CC_REFRESH_BEEP:
+			re_refresh(el);
+			term_beep(el);
+			break;
+
+		case CC_NORM:	/* normal char */
+			break;
+
+		case CC_ARGHACK:	/* Suggested by Rich Salz */
+			/* <rsalz at pineapple.bbn.com> */
+			continue;	/* keep going... */
+
+		case CC_EOF:	/* end of file typed */
+			if ((el->el_flags & UNBUFFERED) == 0)
+				num = 0;
+			else if (num == -1) {
+				*el->el_line.lastchar++ = CONTROL('d');
+				el->el_line.cursor = el->el_line.lastchar;
+				num = 1;
+			}
+			break;
+
+		case CC_NEWLINE:	/* normal end of line */
+			num = el->el_line.lastchar - el->el_line.buffer;
+			break;
+
+		case CC_FATAL:	/* fatal error, reset to known state */
+#ifdef DEBUG_READ
+			(void) fprintf(el->el_errfile,
+			    "*** editor fatal ERROR ***\r\n\n");
+#endif /* DEBUG_READ */
+			/* put (real) cursor in a known place */
+			re_clear_display(el);	/* reset the display stuff */
+			ch_reset(el, 1);	/* reset the input pointers */
+			re_refresh(el);	/* print the prompt again */
+			break;
+
+		case CC_ERROR:
+		default:	/* functions we don't know about */
+#ifdef DEBUG_READ
+			(void) fprintf(el->el_errfile,
+			    "*** editor ERROR ***\r\n\n");
+#endif /* DEBUG_READ */
+			term_beep(el);
+			term__flush();
+			break;
+		}
+		el->el_state.argument = 1;
+		el->el_state.doingarg = 0;
+		el->el_chared.c_vcmd.action = NOP;
+		if (el->el_flags & UNBUFFERED)
+			break;
+	}
+
+	term__flush();		/* flush any buffered output */
+	/* make sure the tty is set up correctly */
+	if ((el->el_flags & UNBUFFERED) == 0) {
+		read_finish(el);
+		if (nread)
+			*nread = num;
+	} else {
+		if (nread)
+			*nread = el->el_line.lastchar - el->el_line.buffer;
+	}
+	return (num ? el->el_line.buffer : NULL);
+}
diff --git a/frontend/libedit/read.h b/frontend/libedit/read.h
new file mode 100644
index 0000000..61952a2
--- /dev/null
+++ b/frontend/libedit/read.h
@@ -0,0 +1,53 @@
+/*	$NetBSD: read.h,v 1.5 2006/08/21 12:45:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Anthony Mallet.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * el.read.h: Character reading functions
+ */
+#ifndef	_h_el_read
+#define	_h_el_read
+
+typedef int (*el_rfunc_t)(EditLine *, char *);
+
+typedef struct el_read_t {
+	el_rfunc_t	read_char;	/* Function to read a character */
+} el_read_t;
+ 
+protected int		read_init(EditLine *);
+protected void		read_prepare(EditLine *);
+protected void		read_finish(EditLine *);
+protected int		el_read_setfn(EditLine *, el_rfunc_t);
+protected el_rfunc_t	el_read_getfn(EditLine *);
+
+#endif /* _h_el_read */
diff --git a/frontend/libedit/readline.c b/frontend/libedit/readline.c
new file mode 100644
index 0000000..4373916
--- /dev/null
+++ b/frontend/libedit/readline.c
@@ -0,0 +1,1816 @@
+/*	$NetBSD: readline.c,v 1.69 2006/08/21 12:45:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jaromir Dolecek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* AIX requires this to be the first thing in the file.  */
+#if defined (_AIX) && !defined (__GNUC__)
+ #pragma alloca
+#endif
+
+#include <config.h>
+
+#ifdef __GNUC__
+# undef alloca
+# define alloca(n) __builtin_alloca (n)
+#else
+# ifdef HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifndef _AIX
+extern char *alloca ();
+#  endif
+# endif
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <dirent.h>
+#include <string.h>
+#include <pwd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <vis.h>
+
+#include "sys.h"
+#include "el.h"
+#include "fcns.h"		/* for EL_NUM_FCNS */
+#include "histedit.h"
+#include "readline.h"
+#include "filecomplete.h"
+
+void rl_prep_terminal(int);
+void rl_deprep_terminal(void);
+
+/* for rl_complete() */
+#define TAB		'\r'
+
+/* see comment at the #ifdef for sense of this */
+/* #define GDB_411_HACK */
+
+/* readline compatibility stuff - look at readline sources/documentation */
+/* to see what these variables mean */
+const char *rl_library_version = "EditLine wrapper";
+static char empty[] = { '\0' };
+static char expand_chars[] = { ' ', '\t', '\n', '=', '(', '\0' };
+static char break_chars[] = { ' ', '\t', '\n', '"', '\\', '\'', '`', '@', '$',
+    '>', '<', '=', ';', '|', '&', '{', '(', '\0' };
+char *rl_readline_name = empty;
+FILE *rl_instream = NULL;
+FILE *rl_outstream = NULL;
+int rl_point = 0;
+int rl_end = 0;
+char *rl_line_buffer = NULL;
+VCPFunction *rl_linefunc = NULL;
+int rl_done = 0;
+VFunction *rl_event_hook = NULL;
+
+int history_base = 1;		/* probably never subject to change */
+int history_length = 0;
+int max_input_history = 0;
+char history_expansion_char = '!';
+char history_subst_char = '^';
+char *history_no_expand_chars = expand_chars;
+Function *history_inhibit_expansion_function = NULL;
+char *history_arg_extract(int start, int end, const char *str);
+
+int rl_inhibit_completion = 0;
+int rl_attempted_completion_over = 0;
+char *rl_basic_word_break_characters = break_chars;
+char *rl_completer_word_break_characters = NULL;
+char *rl_completer_quote_characters = NULL;
+Function *rl_completion_entry_function = NULL;
+CPPFunction *rl_attempted_completion_function = NULL;
+Function *rl_pre_input_hook = NULL;
+Function *rl_startup1_hook = NULL;
+Function *rl_getc_function = NULL;
+char *rl_terminal_name = NULL;
+int rl_already_prompted = 0;
+int rl_filename_completion_desired = 0;
+int rl_ignore_completion_duplicates = 0;
+int rl_catch_signals = 1;
+VFunction *rl_redisplay_function = NULL;
+Function *rl_startup_hook = NULL;
+VFunction *rl_completion_display_matches_hook = NULL;
+VFunction *rl_prep_term_function = (VFunction *)rl_prep_terminal;
+VFunction *rl_deprep_term_function = (VFunction *)rl_deprep_terminal;
+
+/*
+ * The current prompt string.
+ */
+char *rl_prompt = NULL;
+/*
+ * This is set to character indicating type of completion being done by
+ * rl_complete_internal(); this is available for application completion
+ * functions.
+ */
+int rl_completion_type = 0;
+
+/*
+ * If more than this number of items results from query for possible
+ * completions, we ask user if they are sure to really display the list.
+ */
+int rl_completion_query_items = 100;
+
+/*
+ * List of characters which are word break characters, but should be left
+ * in the parsed text when it is passed to the completion function.
+ * Shell uses this to help determine what kind of completing to do.
+ */
+char *rl_special_prefixes = NULL;
+
+/*
+ * This is the character appended to the completed words if at the end of
+ * the line. Default is ' ' (a space).
+ */
+int rl_completion_append_character = ' ';
+
+/* stuff below is used internally by libedit for readline emulation */
+
+static History *h = NULL;
+static EditLine *e = NULL;
+static Function *map[256];
+
+/* internal functions */
+static unsigned char	 _el_rl_complete(EditLine *, int);
+static unsigned char	 _el_rl_tstp(EditLine *, int);
+static char		*_get_prompt(EditLine *);
+static int		 _getc_function(EditLine *, char *);
+static HIST_ENTRY	*_move_history(int);
+static int		 _history_expand_command(const char *, size_t, size_t,
+    char **);
+static char		*_rl_compat_sub(const char *, const char *,
+    const char *, int);
+static int		 _rl_event_read_char(EditLine *, char *);
+static void		 _rl_update_pos(void);
+
+
+/* ARGSUSED */
+static char *
+_get_prompt(EditLine *el __attribute__((__unused__)))
+{
+	rl_already_prompted = 1;
+	return (rl_prompt);
+}
+
+
+/*
+ * generic function for moving around history
+ */
+static HIST_ENTRY *
+_move_history(int op)
+{
+	HistEvent ev;
+	static HIST_ENTRY rl_he;
+
+	if (history(h, &ev, op) != 0)
+		return (HIST_ENTRY *) NULL;
+
+	rl_he.line = ev.str;
+	rl_he.data = (histdata_t) &(ev.num);
+
+	return (&rl_he);
+}
+
+
+/*
+ * read one key from user defined input function
+ */
+static int
+/*ARGSUSED*/
+_getc_function(EditLine *el, char *c)
+{
+	int i;
+
+	i = (*rl_getc_function)(NULL, 0);
+	if (i == -1)
+		return 0;
+	*c = i;
+	return 1;
+}
+
+
+/*
+ * READLINE compatibility stuff
+ */
+
+/*
+ * initialize rl compat stuff
+ */
+int
+rl_initialize(void)
+{
+	HistEvent ev;
+	const LineInfo *li;
+	int editmode = 1;
+	struct termios t;
+
+	if (e != NULL)
+		el_end(e);
+	if (h != NULL)
+		history_end(h);
+
+	if (!rl_instream)
+		rl_instream = stdin;
+	if (!rl_outstream)
+		rl_outstream = stdout;
+
+	/*
+	 * See if we don't really want to run the editor
+	 */
+	if (tcgetattr(fileno(rl_instream), &t) != -1 && (t.c_lflag & ECHO) == 0)
+		editmode = 0;
+
+	e = el_init(rl_readline_name, rl_instream, rl_outstream, stderr);
+
+	if (!editmode)
+		el_set(e, EL_EDITMODE, 0);
+
+	h = history_init();
+	if (!e || !h)
+		return (-1);
+
+	history(h, &ev, H_SETSIZE, INT_MAX);	/* unlimited */
+	history_length = 0;
+	max_input_history = INT_MAX;
+	el_set(e, EL_HIST, history, h);
+
+	/* setup getc function if valid */
+	if (rl_getc_function)
+		el_set(e, EL_GETCFN, _getc_function);
+
+	/* for proper prompt printing in readline() */
+	rl_prompt = strdup("");
+	if (rl_prompt == NULL) {
+		history_end(h);
+		el_end(e);
+		return -1;
+	}
+	el_set(e, EL_PROMPT, _get_prompt);
+	el_set(e, EL_SIGNAL, rl_catch_signals);
+
+	/* set default mode to "emacs"-style and read setting afterwards */
+	/* so this can be overriden */
+	el_set(e, EL_EDITOR, "emacs");
+	if (rl_terminal_name != NULL)
+		el_set(e, EL_TERMINAL, rl_terminal_name);
+	else
+		el_get(e, EL_TERMINAL, &rl_terminal_name);
+
+	/*
+	 * Word completion - this has to go AFTER rebinding keys
+	 * to emacs-style.
+	 */
+	el_set(e, EL_ADDFN, "rl_complete",
+	    "ReadLine compatible completion function",
+	    _el_rl_complete);
+	el_set(e, EL_BIND, "^I", "rl_complete", NULL);
+
+	/*
+	 * Send TSTP when ^Z is pressed.
+	 */
+	el_set(e, EL_ADDFN, "rl_tstp",
+	    "ReadLine compatible suspend function",
+	    _el_rl_tstp);
+	el_set(e, EL_BIND, "^Z", "rl_tstp", NULL);
+		
+	/* read settings from configuration file */
+	el_source(e, NULL);
+
+	/*
+	 * Unfortunately, some applications really do use rl_point
+	 * and rl_line_buffer directly.
+	 */
+	li = el_line(e);
+	/* a cheesy way to get rid of const cast. */
+	rl_line_buffer = memchr(li->buffer, *li->buffer, 1);
+	_rl_update_pos();
+
+	if (rl_startup_hook)
+		(*rl_startup_hook)(NULL, 0);
+
+	return (0);
+}
+
+
+/*
+ * read one line from input stream and return it, chomping
+ * trailing newline (if there is any)
+ */
+char *
+readline(const char *prompt)
+{
+	HistEvent ev;
+	int count;
+	const char *ret;
+	char *buf;
+	static int used_event_hook;
+
+	if (e == NULL || h == NULL)
+		rl_initialize();
+
+	rl_done = 0;
+
+	/* update prompt accordingly to what has been passed */
+	if (!prompt)
+		prompt = "";
+	if (strcmp(rl_prompt, prompt) != 0) {
+		free(rl_prompt);
+		rl_prompt = strdup(prompt);
+		if (rl_prompt == NULL)
+			return NULL;
+	}
+
+	if (rl_pre_input_hook)
+		(*rl_pre_input_hook)(NULL, 0);
+
+	if (rl_event_hook && !(e->el_flags&NO_TTY)) {
+		el_set(e, EL_GETCFN, _rl_event_read_char);
+		used_event_hook = 1;
+	}
+
+	if (!rl_event_hook && used_event_hook) {
+		el_set(e, EL_GETCFN, EL_BUILTIN_GETCFN);
+		used_event_hook = 0;
+	}
+
+	rl_already_prompted = 0;
+
+	/* get one line from input stream */
+	ret = el_gets(e, &count);
+
+	if (ret && count > 0) {
+		int lastidx;
+
+		buf = strdup(ret);
+		if (buf == NULL)
+			return NULL;
+		lastidx = count - 1;
+		if (buf[lastidx] == '\n')
+			buf[lastidx] = '\0';
+	} else
+		buf = NULL;
+
+	history(h, &ev, H_GETSIZE);
+	history_length = ev.num;
+
+	return buf;
+}
+
+/*
+ * history functions
+ */
+
+/*
+ * is normally called before application starts to use
+ * history expansion functions
+ */
+void
+using_history(void)
+{
+	if (h == NULL || e == NULL)
+		rl_initialize();
+}
+
+
+/*
+ * substitute ``what'' with ``with'', returning resulting string; if
+ * globally == 1, substitutes all occurrences of what, otherwise only the
+ * first one
+ */
+static char *
+_rl_compat_sub(const char *str, const char *what, const char *with,
+    int globally)
+{
+	const	char	*s;
+	char	*r, *result;
+	size_t	len, with_len, what_len;
+
+	len = strlen(str);
+	with_len = strlen(with);
+	what_len = strlen(what);
+
+	/* calculate length we need for result */
+	s = str;
+	while (*s) {
+		if (*s == *what && !strncmp(s, what, what_len)) {
+			len += with_len - what_len;
+			if (!globally)
+				break;
+			s += what_len;
+		} else
+			s++;
+	}
+	r = result = malloc(len + 1);
+	if (result == NULL)
+		return NULL;
+	s = str;
+	while (*s) {
+		if (*s == *what && !strncmp(s, what, what_len)) {
+			(void)strncpy(r, with, with_len);
+			r += with_len;
+			s += what_len;
+			if (!globally) {
+				(void)strcpy(r, s);
+				return(result);
+			}
+		} else
+			*r++ = *s++;
+	}
+	*r = 0;
+	return(result);
+}
+
+static	char	*last_search_pat;	/* last !?pat[?] search pattern */
+static	char	*last_search_match;	/* last !?pat[?] that matched */
+
+const char *
+get_history_event(const char *cmd, int *cindex, int qchar)
+{
+	int idx, sign, sub, num, begin, ret;
+	size_t len;
+	char	*pat;
+	const char *rptr;
+	HistEvent ev;
+
+	idx = *cindex;
+	if (cmd[idx++] != history_expansion_char)
+		return(NULL);
+
+	/* find out which event to take */
+	if (cmd[idx] == history_expansion_char || cmd[idx] == 0) {
+		if (history(h, &ev, H_FIRST) != 0)
+			return(NULL);
+		*cindex = cmd[idx]? (idx + 1):idx;
+		return(ev.str);
+	}
+	sign = 0;
+	if (cmd[idx] == '-') {
+		sign = 1;
+		idx++;
+	}
+
+	if ('0' <= cmd[idx] && cmd[idx] <= '9') {
+		HIST_ENTRY *rl_he;
+
+		num = 0;
+		while (cmd[idx] && '0' <= cmd[idx] && cmd[idx] <= '9') {
+			num = num * 10 + cmd[idx] - '0';
+			idx++;
+		}
+		if (sign)
+			num = history_length - num + 1;
+
+		if (!(rl_he = history_get(num)))
+			return(NULL);
+
+		*cindex = idx;
+		return(rl_he->line);
+	}
+	sub = 0;
+	if (cmd[idx] == '?') {
+		sub = 1;
+		idx++;
+	}
+	begin = idx;
+	while (cmd[idx]) {
+		if (cmd[idx] == '\n')
+			break;
+		if (sub && cmd[idx] == '?')
+			break;
+		if (!sub && (cmd[idx] == ':' || cmd[idx] == ' '
+				    || cmd[idx] == '\t' || cmd[idx] == qchar))
+			break;
+		idx++;
+	}
+	len = idx - begin;
+	if (sub && cmd[idx] == '?')
+		idx++;
+	if (sub && len == 0 && last_search_pat && *last_search_pat)
+		pat = last_search_pat;
+	else if (len == 0)
+		return(NULL);
+	else {
+		if ((pat = malloc(len + 1)) == NULL)
+			return NULL;
+		(void)strncpy(pat, cmd + begin, len);
+		pat[len] = '\0';
+	}
+
+	if (history(h, &ev, H_CURR) != 0) {
+		if (pat != last_search_pat)
+			free(pat);
+		return (NULL);
+	}
+	num = ev.num;
+
+	if (sub) {
+		if (pat != last_search_pat) {
+			if (last_search_pat)
+				free(last_search_pat);
+			last_search_pat = pat;
+		}
+		ret = history_search(pat, -1);
+	} else
+		ret = history_search_prefix(pat, -1);
+
+	if (ret == -1) {
+		/* restore to end of list on failed search */
+		history(h, &ev, H_FIRST);
+		(void)fprintf(rl_outstream, "%s: Event not found\n", pat);
+		if (pat != last_search_pat)
+			free(pat);
+		return(NULL);
+	}
+
+	if (sub && len) {
+		if (last_search_match && last_search_match != pat)
+			free(last_search_match);
+		last_search_match = pat;
+	}
+
+	if (pat != last_search_pat)
+		free(pat);
+
+	if (history(h, &ev, H_CURR) != 0)
+		return(NULL);
+	*cindex = idx;
+	rptr = ev.str;
+
+	/* roll back to original position */
+	(void)history(h, &ev, H_SET, num);
+
+	return rptr;
+}
+
+/*
+ * the real function doing history expansion - takes as argument command
+ * to do and data upon which the command should be executed
+ * does expansion the way I've understood readline documentation
+ *
+ * returns 0 if data was not modified, 1 if it was and 2 if the string
+ * should be only printed and not executed; in case of error,
+ * returns -1 and *result points to NULL
+ * it's callers responsibility to free() string returned in *result
+ */
+static int
+_history_expand_command(const char *command, size_t offs, size_t cmdlen,
+    char **result)
+{
+	char *tmp, *search = NULL, *aptr;
+	const char *ptr, *cmd;
+	static char *from = NULL, *to = NULL;
+	int start, end, idx, has_mods = 0;
+	int p_on = 0, g_on = 0;
+
+	*result = NULL;
+	aptr = NULL;
+	ptr = NULL;
+
+	/* First get event specifier */
+	idx = 0;
+
+	if (strchr(":^*$", command[offs + 1])) {
+		char str[4];
+		/*
+		* "!:" is shorthand for "!!:".
+		* "!^", "!*" and "!$" are shorthand for
+		* "!!:^", "!!:*" and "!!:$" respectively.
+		*/
+		str[0] = str[1] = '!';
+		str[2] = '0';
+		ptr = get_history_event(str, &idx, 0);
+		idx = (command[offs + 1] == ':')? 1:0;
+		has_mods = 1;
+	} else {
+		if (command[offs + 1] == '#') {
+			/* use command so far */
+			if ((aptr = malloc(offs + 1)) == NULL)
+				return -1;
+			(void)strncpy(aptr, command, offs);
+			aptr[offs] = '\0';
+			idx = 1;
+		} else {
+			int	qchar;
+
+			qchar = (offs > 0 && command[offs - 1] == '"')? '"':0;
+			ptr = get_history_event(command + offs, &idx, qchar);
+		}
+		has_mods = command[offs + idx] == ':';
+	}
+
+	if (ptr == NULL && aptr == NULL)
+		return(-1);
+
+	if (!has_mods) {
+		*result = strdup(aptr? aptr : ptr);
+		if (aptr)
+			free(aptr);
+		return(1);
+	}
+
+	cmd = command + offs + idx + 1;
+
+	/* Now parse any word designators */
+
+	if (*cmd == '%')	/* last word matched by ?pat? */
+		tmp = strdup(last_search_match? last_search_match:"");
+	else if (strchr("^*$-0123456789", *cmd)) {
+		start = end = -1;
+		if (*cmd == '^')
+			start = end = 1, cmd++;
+		else if (*cmd == '$')
+			start = -1, cmd++;
+		else if (*cmd == '*')
+			start = 1, cmd++;
+	       else if (*cmd == '-' || isdigit((unsigned char) *cmd)) {
+			start = 0;
+			while (*cmd && '0' <= *cmd && *cmd <= '9')
+				start = start * 10 + *cmd++ - '0';
+
+			if (*cmd == '-') {
+				if (isdigit((unsigned char) cmd[1])) {
+					cmd++;
+					end = 0;
+					while (*cmd && '0' <= *cmd && *cmd <= '9')
+						end = end * 10 + *cmd++ - '0';
+				} else if (cmd[1] == '$') {
+					cmd += 2;
+					end = -1;
+				} else {
+					cmd++;
+					end = -2;
+				}
+			} else if (*cmd == '*')
+				end = -1, cmd++;
+			else
+				end = start;
+		}
+		tmp = history_arg_extract(start, end, aptr? aptr:ptr);
+		if (tmp == NULL) {
+			(void)fprintf(rl_outstream, "%s: Bad word specifier",
+			    command + offs + idx);
+			if (aptr)
+				free(aptr);
+			return(-1);
+		}
+	} else
+		tmp = strdup(aptr? aptr:ptr);
+
+	if (aptr)
+		free(aptr);
+
+	if (*cmd == 0 || (cmd - (command + offs) >= cmdlen)) {
+		*result = tmp;
+		return(1);
+	}
+
+	for (; *cmd; cmd++) {
+		if (*cmd == ':')
+			continue;
+		else if (*cmd == 'h') {		/* remove trailing path */
+			if ((aptr = strrchr(tmp, '/')) != NULL)
+				*aptr = 0;
+		} else if (*cmd == 't') {	/* remove leading path */
+			if ((aptr = strrchr(tmp, '/')) != NULL) {
+				aptr = strdup(aptr + 1);
+				free(tmp);
+				tmp = aptr;
+			}
+		} else if (*cmd == 'r') {	/* remove trailing suffix */
+			if ((aptr = strrchr(tmp, '.')) != NULL)
+				*aptr = 0;
+		} else if (*cmd == 'e') {	/* remove all but suffix */
+			if ((aptr = strrchr(tmp, '.')) != NULL) {
+				aptr = strdup(aptr);
+				free(tmp);
+				tmp = aptr;
+			}
+		} else if (*cmd == 'p')		/* print only */
+			p_on = 1;
+		else if (*cmd == 'g')
+			g_on = 2;
+		else if (*cmd == 's' || *cmd == '&') {
+			char *what, *with, delim;
+			size_t len, from_len;
+			size_t size;
+
+			if (*cmd == '&' && (from == NULL || to == NULL))
+				continue;
+			else if (*cmd == 's') {
+				delim = *(++cmd), cmd++;
+				size = 16;
+				what = realloc(from, size);
+				if (what == NULL) {
+					free(from);
+					free(tmp);
+					return 0;
+				}
+				len = 0;
+				for (; *cmd && *cmd != delim; cmd++) {
+					if (*cmd == '\\' && cmd[1] == delim)
+						cmd++;
+					if (len >= size) {
+						char *nwhat;
+						nwhat = realloc(what,
+								(size <<= 1));
+						if (nwhat == NULL) {
+							free(what);
+							free(tmp);
+							return 0;
+						}
+						what = nwhat;
+					}
+					what[len++] = *cmd;
+				}
+				what[len] = '\0';
+				from = what;
+				if (*what == '\0') {
+					free(what);
+					if (search) {
+						from = strdup(search);
+						if (from == NULL) {
+							free(tmp);
+							return 0;
+						}
+					} else {
+						from = NULL;
+						free(tmp);
+						return (-1);
+					}
+				}
+				cmd++;	/* shift after delim */
+				if (!*cmd)
+					continue;
+
+				size = 16;
+				with = realloc(to, size);
+				if (with == NULL) {
+					free(to);
+					free(tmp);
+					return -1;
+				}
+				len = 0;
+				from_len = strlen(from);
+				for (; *cmd && *cmd != delim; cmd++) {
+					if (len + from_len + 1 >= size) {
+						char *nwith;
+						size += from_len + 1;
+						nwith = realloc(with, size);
+						if (nwith == NULL) {
+							free(with);
+							free(tmp);
+							return -1;
+						}
+						with = nwith;
+					}
+					if (*cmd == '&') {
+						/* safe */
+						(void)strcpy(&with[len], from);
+						len += from_len;
+						continue;
+					}
+					if (*cmd == '\\'
+					    && (*(cmd + 1) == delim
+						|| *(cmd + 1) == '&'))
+						cmd++;
+					with[len++] = *cmd;
+				}
+				with[len] = '\0';
+				to = with;
+			}
+
+			aptr = _rl_compat_sub(tmp, from, to, g_on);
+			if (aptr) {
+				free(tmp);
+				tmp = aptr;
+			}
+			g_on = 0;
+		}
+	}
+	*result = tmp;
+	return (p_on? 2:1);
+}
+
+
+/*
+ * csh-style history expansion
+ */
+int
+history_expand(char *str, char **output)
+{
+	int ret = 0;
+	size_t idx, i, size;
+	char *tmp, *result;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	if (history_expansion_char == 0) {
+		*output = strdup(str);
+		return(0);
+	}
+
+	*output = NULL;
+	if (str[0] == history_subst_char) {
+		/* ^foo^foo2^ is equivalent to !!:s^foo^foo2^ */
+		*output = malloc(strlen(str) + 4 + 1);
+		if (*output == NULL)
+			return 0;
+		(*output)[0] = (*output)[1] = history_expansion_char;
+		(*output)[2] = ':';
+		(*output)[3] = 's';
+		(void)strcpy((*output) + 4, str);
+		str = *output;
+	} else {
+		*output = strdup(str);
+		if (*output == NULL)
+			return 0;
+	}
+
+#define ADD_STRING(what, len, fr)					\
+	{								\
+		if (idx + len + 1 > size) {				\
+			char *nresult = realloc(result, (size += len + 1));\
+			if (nresult == NULL) {				\
+				free(*output);				\
+				if (/*CONSTCOND*/fr)			\
+					free(tmp);			\
+				return 0;				\
+			}						\
+			result = nresult;				\
+		}							\
+		(void)strncpy(&result[idx], what, len);			\
+		idx += len;						\
+		result[idx] = '\0';					\
+	}
+
+	result = NULL;
+	size = idx = 0;
+	tmp = NULL;
+	for (i = 0; str[i];) {
+		int qchar, loop_again;
+		size_t len, start, j;
+
+		qchar = 0;
+		loop_again = 1;
+		start = j = i;
+loop:
+		for (; str[j]; j++) {
+			if (str[j] == '\\' &&
+			    str[j + 1] == history_expansion_char) {
+				(void)strcpy(&str[j], &str[j + 1]);
+				continue;
+			}
+			if (!loop_again) {
+				if (isspace((unsigned char) str[j])
+				    || str[j] == qchar)
+					break;
+			}
+			if (str[j] == history_expansion_char
+			    && !strchr(history_no_expand_chars, str[j + 1])
+			    && (!history_inhibit_expansion_function ||
+			    (*history_inhibit_expansion_function)(str,
+			    (int)j) == 0))
+				break;
+		}
+
+		if (str[j] && loop_again) {
+			i = j;
+			qchar = (j > 0 && str[j - 1] == '"' )? '"':0;
+			j++;
+			if (str[j] == history_expansion_char)
+				j++;
+			loop_again = 0;
+			goto loop;
+		}
+		len = i - start;
+		ADD_STRING(&str[start], len, 0);
+
+		if (str[i] == '\0' || str[i] != history_expansion_char) {
+			len = j - i;
+			ADD_STRING(&str[i], len, 0);
+			if (start == 0)
+				ret = 0;
+			else
+				ret = 1;
+			break;
+		}
+		ret = _history_expand_command (str, i, (j - i), &tmp);
+		if (ret > 0 && tmp) {
+			len = strlen(tmp);
+			ADD_STRING(tmp, len, 1);
+		}
+		if (tmp) {
+			free(tmp);
+			tmp = NULL;
+		}
+		i = j;
+	}
+
+	/* ret is 2 for "print only" option */
+	if (ret == 2) {
+		add_history(result);
+#ifdef GDB_411_HACK
+		/* gdb 4.11 has been shipped with readline, where */
+		/* history_expand() returned -1 when the line	  */
+		/* should not be executed; in readline 2.1+	  */
+		/* it should return 2 in such a case		  */
+		ret = -1;
+#endif
+	}
+	free(*output);
+	*output = result;
+
+	return (ret);
+}
+
+/*
+* Return a string consisting of arguments of "str" from "start" to "end".
+*/
+char *
+history_arg_extract(int start, int end, const char *str)
+{
+	size_t  i, len, max;
+	char	**arr, *result;
+
+	arr = history_tokenize(str);
+	if (!arr)
+		return(NULL);
+	if (arr && *arr == NULL) {
+		free(arr);
+		return(NULL);
+	}
+
+	for (max = 0; arr[max]; max++)
+		continue;
+	max--;
+
+	if (start == '$')
+		start = max;
+	if (end == '$')
+		end = max;
+	if (end < 0)
+		end = max + end + 1;
+	if (start < 0)
+		start = end;
+
+	if (start < 0 || end < 0 || start > max || end > max || start > end)
+		return(NULL);
+
+	for (i = start, len = 0; i <= end; i++)
+		len += strlen(arr[i]) + 1;
+	len++;
+	result = malloc(len);
+	if (result == NULL)
+		return NULL;
+
+	for (i = start, len = 0; i <= end; i++) {
+		(void)strcpy(result + len, arr[i]);
+		len += strlen(arr[i]);
+		if (i < end)
+			result[len++] = ' ';
+	}
+	result[len] = 0;
+
+	for (i = 0; arr[i]; i++)
+		free(arr[i]);
+	free(arr);
+
+	return(result);
+}
+
+/*
+ * Parse the string into individual tokens,
+ * similar to how shell would do it.
+ */
+char **
+history_tokenize(const char *str)
+{
+	int size = 1, idx = 0, i, start;
+	size_t len;
+	char **result = NULL, *temp, delim = '\0';
+
+	for (i = 0; str[i];) {
+		while (isspace((unsigned char) str[i]))
+			i++;
+		start = i;
+		for (; str[i];) {
+			if (str[i] == '\\') {
+				if (str[i+1] != '\0')
+					i++;
+			} else if (str[i] == delim)
+				delim = '\0';
+			else if (!delim &&
+				    (isspace((unsigned char) str[i]) ||
+				strchr("()<>;&|$", str[i])))
+				break;
+			else if (!delim && strchr("'`\"", str[i]))
+				delim = str[i];
+			if (str[i])
+				i++;
+		}
+
+		if (idx + 2 >= size) {
+			char **nresult;
+			size <<= 1;
+			nresult = realloc(result, size * sizeof(char *));
+			if (nresult == NULL) {
+				free(result);
+				return NULL;
+			}
+			result = nresult;
+		}
+		len = i - start;
+		temp = malloc(len + 1);
+		if (temp == NULL) {
+			for (i = 0; i < idx; i++)
+				free(result[i]);
+			free(result);
+			return NULL;
+		}
+		(void)strncpy(temp, &str[start], len);
+		temp[len] = '\0';
+		result[idx++] = temp;
+		result[idx] = NULL;
+		if (str[i])
+			i++;
+	}
+	return (result);
+}
+
+
+/*
+ * limit size of history record to ``max'' events
+ */
+void
+stifle_history(int max)
+{
+	HistEvent ev;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	if (history(h, &ev, H_SETSIZE, max) == 0)
+		max_input_history = max;
+}
+
+
+/*
+ * "unlimit" size of history - set the limit to maximum allowed int value
+ */
+int
+unstifle_history(void)
+{
+	HistEvent ev;
+	int omax;
+
+	history(h, &ev, H_SETSIZE, INT_MAX);
+	omax = max_input_history;
+	max_input_history = INT_MAX;
+	return (omax);		/* some value _must_ be returned */
+}
+
+
+int
+history_is_stifled(void)
+{
+
+	/* cannot return true answer */
+	return (max_input_history != INT_MAX);
+}
+
+
+/*
+ * read history from a file given
+ */
+int
+read_history(const char *filename)
+{
+	HistEvent ev;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+	return (history(h, &ev, H_LOAD, filename) == -1);
+}
+
+
+/*
+ * write history to a file given
+ */
+int
+write_history(const char *filename)
+{
+	HistEvent ev;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+	return (history(h, &ev, H_SAVE, filename) == -1);
+}
+
+
+/*
+ * returns history ``num''th event
+ *
+ * returned pointer points to static variable
+ */
+HIST_ENTRY *
+history_get(int num)
+{
+	static HIST_ENTRY she;
+	HistEvent ev;
+	int curr_num;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	/* save current position */
+	if (history(h, &ev, H_CURR) != 0)
+		return (NULL);
+	curr_num = ev.num;
+
+	/* start from most recent */
+	if (history(h, &ev, H_FIRST) != 0)
+		return (NULL);	/* error */
+
+	/* look backwards for event matching specified offset */
+	if (history(h, &ev, H_NEXT_EVENT, num))
+		return (NULL);
+
+	she.line = ev.str;
+	she.data = NULL;
+
+	/* restore pointer to where it was */
+	(void)history(h, &ev, H_SET, curr_num);
+
+	return (&she);
+}
+
+
+/*
+ * add the line to history table
+ */
+int
+add_history(const char *line)
+{
+	HistEvent ev;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	(void)history(h, &ev, H_ENTER, line);
+	if (history(h, &ev, H_GETSIZE) == 0)
+		history_length = ev.num;
+
+	return (!(history_length > 0)); /* return 0 if all is okay */
+}
+
+
+/*
+ * remove the specified entry from the history list and return it.
+ */
+HIST_ENTRY *
+remove_history(int num)
+{
+	static HIST_ENTRY she;
+	HistEvent ev;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	if (history(h, &ev, H_DEL, num) != 0)
+		return NULL;
+
+	she.line = ev.str;
+	she.data = NULL;
+
+	return &she;
+}
+
+
+/*
+ * clear the history list - delete all entries
+ */
+void
+clear_history(void)
+{
+	HistEvent ev;
+
+	history(h, &ev, H_CLEAR);
+}
+
+
+/*
+ * returns offset of the current history event
+ */
+int
+where_history(void)
+{
+	HistEvent ev;
+	int curr_num, off;
+
+	if (history(h, &ev, H_CURR) != 0)
+		return (0);
+	curr_num = ev.num;
+
+	history(h, &ev, H_FIRST);
+	off = 1;
+	while (ev.num != curr_num && history(h, &ev, H_NEXT) == 0)
+		off++;
+
+	return (off);
+}
+
+
+/*
+ * returns current history event or NULL if there is no such event
+ */
+HIST_ENTRY *
+current_history(void)
+{
+
+	return (_move_history(H_CURR));
+}
+
+
+/*
+ * returns total number of bytes history events' data are using
+ */
+int
+history_total_bytes(void)
+{
+	HistEvent ev;
+	int curr_num, size;
+
+	if (history(h, &ev, H_CURR) != 0)
+		return (-1);
+	curr_num = ev.num;
+
+	history(h, &ev, H_FIRST);
+	size = 0;
+	do
+		size += strlen(ev.str);
+	while (history(h, &ev, H_NEXT) == 0);
+
+	/* get to the same position as before */
+	history(h, &ev, H_PREV_EVENT, curr_num);
+
+	return (size);
+}
+
+
+/*
+ * sets the position in the history list to ``pos''
+ */
+int
+history_set_pos(int pos)
+{
+	HistEvent ev;
+	int curr_num;
+
+	if (pos > history_length || pos < 0)
+		return (-1);
+
+	history(h, &ev, H_CURR);
+	curr_num = ev.num;
+
+	if (history(h, &ev, H_SET, pos)) {
+		history(h, &ev, H_SET, curr_num);
+		return(-1);
+	}
+	return (0);
+}
+
+
+/*
+ * returns previous event in history and shifts pointer accordingly
+ */
+HIST_ENTRY *
+previous_history(void)
+{
+
+	return (_move_history(H_PREV));
+}
+
+
+/*
+ * returns next event in history and shifts pointer accordingly
+ */
+HIST_ENTRY *
+next_history(void)
+{
+
+	return (_move_history(H_NEXT));
+}
+
+
+/*
+ * searches for first history event containing the str
+ */
+int
+history_search(const char *str, int direction)
+{
+	HistEvent ev;
+	const char *strp;
+	int curr_num;
+
+	if (history(h, &ev, H_CURR) != 0)
+		return (-1);
+	curr_num = ev.num;
+
+	for (;;) {
+		if ((strp = strstr(ev.str, str)) != NULL)
+			return (int) (strp - ev.str);
+		if (history(h, &ev, direction < 0 ? H_NEXT:H_PREV) != 0)
+			break;
+	}
+	history(h, &ev, H_SET, curr_num);
+	return (-1);
+}
+
+
+/*
+ * searches for first history event beginning with str
+ */
+int
+history_search_prefix(const char *str, int direction)
+{
+	HistEvent ev;
+
+	return (history(h, &ev, direction < 0? H_PREV_STR:H_NEXT_STR, str));
+}
+
+
+/*
+ * search for event in history containing str, starting at offset
+ * abs(pos); continue backward, if pos<0, forward otherwise
+ */
+/* ARGSUSED */
+int
+history_search_pos(const char *str,
+		   int direction __attribute__((__unused__)), int pos)
+{
+	HistEvent ev;
+	int curr_num, off;
+
+	off = (pos > 0) ? pos : -pos;
+	pos = (pos > 0) ? 1 : -1;
+
+	if (history(h, &ev, H_CURR) != 0)
+		return (-1);
+	curr_num = ev.num;
+
+	if (history_set_pos(off) != 0 || history(h, &ev, H_CURR) != 0)
+		return (-1);
+
+
+	for (;;) {
+		if (strstr(ev.str, str))
+			return (off);
+		if (history(h, &ev, (pos < 0) ? H_PREV : H_NEXT) != 0)
+			break;
+	}
+
+	/* set "current" pointer back to previous state */
+	history(h, &ev, (pos < 0) ? H_NEXT_EVENT : H_PREV_EVENT, curr_num);
+
+	return (-1);
+}
+
+
+/********************************/
+/* completion functions */
+
+char *
+tilde_expand(char *name)
+{
+	return fn_tilde_expand(name);
+}
+
+char *
+filename_completion_function(const char *name, int state)
+{
+	return fn_filename_completion_function(name, state);
+}
+
+/*
+ * a completion generator for usernames; returns _first_ username
+ * which starts with supplied text
+ * text contains a partial username preceded by random character
+ * (usually '~'); state is ignored
+ * it's callers responsibility to free returned value
+ */
+char *
+username_completion_function(const char *text, int state)
+{
+	struct passwd *pwd;
+
+	if (text[0] == '\0')
+		return (NULL);
+
+	if (*text == '~')
+		text++;
+
+	if (state == 0)
+		setpwent();
+
+   while ((pwd = getpwent())
+		&& pwd != NULL && text[0] == pwd->pw_name[0]
+		&& strcmp(text, pwd->pw_name) == 0);
+
+	if (pwd == NULL) {
+		endpwent();
+		return (NULL);
+	}
+	return (strdup(pwd->pw_name));
+}
+
+
+/*
+ * el-compatible wrapper to send TSTP on ^Z
+ */
+/* ARGSUSED */
+static unsigned char
+_el_rl_tstp(EditLine *el __attribute__((__unused__)), int ch __attribute__((__unused__)))
+{
+	(void)kill(0, SIGTSTP);
+	return CC_NORM;
+}
+
+/*
+ * Display list of strings in columnar format on readline's output stream.
+ * 'matches' is list of strings, 'len' is number of strings in 'matches',
+ * 'max' is maximum length of string in 'matches'.
+ */
+void
+rl_display_match_list(char **matches, int len, int max)
+{
+
+	fn_display_match_list(e, matches, len, max);
+}
+
+static const char *
+/*ARGSUSED*/
+_rl_completion_append_character_function(const char *dummy
+    __attribute__((__unused__)))
+{
+	static char buf[2];
+	buf[1] = rl_completion_append_character;
+	return buf;
+}
+
+
+/*
+ * complete word at current point
+ */
+/* ARGSUSED */
+int
+rl_complete(int ignore __attribute__((__unused__)), int invoking_key)
+{
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	if (rl_inhibit_completion) {
+		char arr[2];
+		arr[0] = (char)invoking_key;
+		arr[1] = '\0';
+		el_insertstr(e, arr);
+		return (CC_REFRESH);
+	}
+
+	/* Just look at how many global variables modify this operation! */
+	return fn_complete(e,
+	    (CPFunction *)rl_completion_entry_function,
+	    rl_attempted_completion_function,
+	    rl_basic_word_break_characters, rl_special_prefixes,
+	    _rl_completion_append_character_function, rl_completion_query_items,
+	    &rl_completion_type, &rl_attempted_completion_over,
+	    &rl_point, &rl_end);
+}
+
+
+/* ARGSUSED */
+static unsigned char
+_el_rl_complete(EditLine *el __attribute__((__unused__)), int ch)
+{
+	return (unsigned char)rl_complete(0, ch);
+}
+
+/*
+ * misc other functions
+ */
+
+/*
+ * bind key c to readline-type function func
+ */
+int
+rl_bind_key(int c, int func(int, int))
+{
+	int retval = -1;
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	if (func == rl_insert) {
+		/* XXX notice there is no range checking of ``c'' */
+		e->el_map.key[c] = ED_INSERT;
+		retval = 0;
+	}
+	return (retval);
+}
+
+
+/*
+ * read one key from input - handles chars pushed back
+ * to input stream also
+ */
+int
+rl_read_key(void)
+{
+	char fooarr[2 * sizeof(int)];
+
+	if (e == NULL || h == NULL)
+		rl_initialize();
+
+	return (el_getc(e, fooarr));
+}
+
+
+/*
+ * reset the terminal
+ */
+/* ARGSUSED */
+void
+rl_reset_terminal(const char *p __attribute__((__unused__)))
+{
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+	el_reset(e);
+}
+
+
+/*
+ * insert character ``c'' back into input stream, ``count'' times
+ */
+int
+rl_insert(int count, int c)
+{
+	char arr[2];
+
+	if (h == NULL || e == NULL)
+		rl_initialize();
+
+	/* XXX - int -> char conversion can lose on multichars */
+	arr[0] = c;
+	arr[1] = '\0';
+
+	for (; count > 0; count--)
+		el_push(e, arr);
+
+	return (0);
+}
+
+/*ARGSUSED*/
+int
+rl_newline(int count, int c)
+{
+	/*
+	 * Readline-4.0 appears to ignore the args.
+	 */
+	return rl_insert(1, '\n');
+}
+
+/*ARGSUSED*/
+static unsigned char
+rl_bind_wrapper(EditLine *el, unsigned char c)
+{
+	if (map[c] == NULL)
+	    return CC_ERROR;
+
+	_rl_update_pos();
+
+	(*map[c])(NULL, c);
+
+	/* If rl_done was set by the above call, deal with it here */
+	if (rl_done)
+		return CC_EOF;
+
+	return CC_NORM;
+}
+
+int
+rl_add_defun(const char *name, Function *fun, int c)
+{
+	char dest[8];
+	if (c >= sizeof(map) / sizeof(map[0]) || c < 0)
+		return -1;
+	map[(unsigned char)c] = fun;
+	el_set(e, EL_ADDFN, name, name, rl_bind_wrapper);
+	vis(dest, c, VIS_WHITE|VIS_NOSLASH, 0);
+	el_set(e, EL_BIND, dest, name);
+	return 0;
+}
+
+void
+rl_callback_read_char()
+{
+	int count = 0, done = 0;
+	const char *buf = el_gets(e, &count);
+	char *wbuf;
+
+	if (buf == NULL || count-- <= 0)
+		return;
+	if (count == 0 && buf[0] == e->el_tty.t_c[TS_IO][C_EOF])
+		done = 1;
+	if (buf[count] == '\n' || buf[count] == '\r')
+		done = 2;
+
+	if (done && rl_linefunc != NULL) {
+		el_set(e, EL_UNBUFFERED, 0);
+		if (done == 2) {
+		    if ((wbuf = strdup(buf)) != NULL)
+			wbuf[count] = '\0';
+		} else
+			wbuf = NULL;
+		(*(void (*)(const char *))rl_linefunc)(wbuf);
+		el_set(e, EL_UNBUFFERED, 1);
+	}
+}
+
+void 
+rl_callback_handler_install (const char *prompt, VCPFunction *linefunc)
+{
+	if (e == NULL) {
+		rl_initialize();
+	}
+	if (rl_prompt)
+		free(rl_prompt);
+	rl_prompt = prompt ? strdup(strchr(prompt, *prompt)) : NULL;
+	rl_linefunc = linefunc;
+	el_set(e, EL_UNBUFFERED, 1);
+}   
+
+void 
+rl_callback_handler_remove(void)
+{
+	el_set(e, EL_UNBUFFERED, 0);
+}
+
+void
+rl_redisplay(void)
+{
+	char a[2];
+	a[0] = e->el_tty.t_c[TS_IO][C_REPRINT];
+	a[1] = '\0';
+	el_push(e, a);
+}
+
+int
+rl_get_previous_history(int count, int key)
+{
+	char a[2];
+	a[0] = key;
+	a[1] = '\0';
+	while (count--)
+		el_push(e, a);
+	return 0;
+}
+
+void
+/*ARGSUSED*/
+rl_prep_terminal(int meta_flag)
+{
+	el_set(e, EL_PREP_TERM, 1);
+}
+
+void
+rl_deprep_terminal(void)
+{
+	el_set(e, EL_PREP_TERM, 0);
+}
+
+int
+rl_read_init_file(const char *s)
+{
+	return(el_source(e, s));
+}
+
+int
+rl_parse_and_bind(const char *line)
+{
+	const char **argv;
+	int argc;
+	Tokenizer *tok;
+
+	tok = tok_init(NULL);
+	tok_str(tok, line, &argc, &argv);
+	argc = el_parse(e, argc, argv);
+	tok_end(tok);
+	return (argc ? 1 : 0);
+}
+
+int
+rl_variable_bind(const char *var, const char *value)
+{
+	/*
+	 * The proper return value is undocument, but this is what the
+	 * readline source seems to do.
+	 */
+	return ((el_set(e, EL_BIND, "", var, value) == -1) ? 1 : 0);
+}
+
+void
+rl_stuff_char(int c)
+{
+	char buf[2];
+
+	buf[0] = c;
+	buf[1] = '\0';
+	el_insertstr(e, buf);
+}
+
+static int
+_rl_event_read_char(EditLine *el, char *cp)
+{
+	int	n, num_read = 0;
+
+	*cp = 0;
+	while (rl_event_hook) {
+
+		(*rl_event_hook)();
+
+#if defined(FIONREAD)
+		if (ioctl(el->el_infd, FIONREAD, &n) < 0)
+			return(-1);
+		if (n)
+			num_read = read(el->el_infd, cp, 1);
+		else
+			num_read = 0;
+#elif defined(F_SETFL) && defined(O_NDELAY)
+		if ((n = fcntl(el->el_infd, F_GETFL, 0)) < 0)
+			return(-1);
+		if (fcntl(el->el_infd, F_SETFL, n|O_NDELAY) < 0)
+			return(-1);
+		num_read = read(el->el_infd, cp, 1);
+		if (fcntl(el->el_infd, F_SETFL, n))
+			return(-1);
+#else
+		/* not non-blocking, but what you gonna do? */
+		num_read = read(el->el_infd, cp, 1);
+		return(-1);
+#endif
+
+		if (num_read < 0 && errno == EAGAIN)
+			continue;
+		if (num_read == 0)
+			continue;
+		break;
+	}
+	if (!rl_event_hook)
+		el_set(el, EL_GETCFN, EL_BUILTIN_GETCFN);
+	return(num_read);
+}
+
+static void
+_rl_update_pos(void)
+{
+	const LineInfo *li = el_line(e);
+
+	rl_point = li->cursor - li->buffer;
+	rl_end = li->lastchar - li->buffer;
+}
diff --git a/frontend/libedit/readline.h b/frontend/libedit/readline.h
new file mode 100644
index 0000000..769d0af
--- /dev/null
+++ b/frontend/libedit/readline.h
@@ -0,0 +1,193 @@
+/*	$NetBSD: readline.h,v 1.18 2006/08/21 12:45:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jaromir Dolecek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _READLINE_H_
+#define _READLINE_H_
+
+#include <sys/types.h>
+
+/* list of readline stuff supported by editline library's readline wrapper */
+
+/* typedefs */
+typedef int	  Function(const char *, int);
+typedef void	  VFunction(void);
+typedef void	  VCPFunction(char *);
+typedef char	 *CPFunction(const char *, int);
+typedef char	**CPPFunction(const char *, int, int);
+
+typedef void *histdata_t;
+
+typedef struct _hist_entry {
+	const char	*line;
+	histdata_t	*data;
+} HIST_ENTRY;
+
+typedef struct _keymap_entry {
+	char type;
+#define ISFUNC	0
+#define ISKMAP	1
+#define ISMACR	2
+	Function *function;
+} KEYMAP_ENTRY;
+
+#define KEYMAP_SIZE	256
+
+typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
+typedef KEYMAP_ENTRY *Keymap;
+
+#define control_character_threshold	0x20
+#define control_character_bit		0x40
+
+#ifndef CTRL
+#include <sys/ioctl.h>
+#ifdef __GLIBC__
+#include <sys/ttydefaults.h>
+#endif
+#ifndef CTRL
+#define CTRL(c)		((c) & 037)
+#endif
+#endif
+#ifndef UNCTRL
+#define UNCTRL(c)	(((c) - 'a' + 'A')|control_character_bit)
+#endif
+
+#define RUBOUT		0x7f
+#define ABORT_CHAR	CTRL('G')
+
+/* global variables used by readline enabled applications */
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern const char	*rl_library_version;
+extern char		*rl_readline_name;
+extern FILE		*rl_instream;
+extern FILE		*rl_outstream;
+extern char		*rl_line_buffer;
+extern int		 rl_point, rl_end;
+extern int		 history_base, history_length;
+extern int		 max_input_history;
+extern char		*rl_basic_word_break_characters;
+extern char		*rl_completer_word_break_characters;
+extern char		*rl_completer_quote_characters;
+extern Function		*rl_completion_entry_function;
+extern CPPFunction	*rl_attempted_completion_function;
+extern int		 rl_attempted_completion_over;
+extern int		rl_completion_type;
+extern int		rl_completion_query_items;
+extern char		*rl_special_prefixes;
+extern int		rl_completion_append_character;
+extern int		rl_inhibit_completion;
+extern Function		*rl_pre_input_hook;
+extern Function		*rl_startup_hook;
+extern char		*rl_terminal_name;
+extern int		rl_already_prompted;
+extern char		*rl_prompt;
+/*
+ * The following is not implemented
+ */
+extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap,
+			emacs_meta_keymap,
+			emacs_ctlx_keymap;
+extern int		rl_filename_completion_desired;
+extern int		rl_ignore_completion_duplicates;
+extern Function		*rl_getc_function;
+extern VFunction	*rl_redisplay_function;
+extern VFunction	*rl_completion_display_matches_hook;
+extern VFunction	*rl_prep_term_function;
+extern VFunction	*rl_deprep_term_function;
+
+/* supported functions */
+char		*readline(const char *);
+int		 rl_initialize(void);
+
+void		 using_history(void);
+int		 add_history(const char *);
+void		 clear_history(void);
+void		 stifle_history(int);
+int		 unstifle_history(void);
+int		 history_is_stifled(void);
+int		 where_history(void);
+HIST_ENTRY	*current_history(void);
+HIST_ENTRY	*history_get(int);
+HIST_ENTRY	*remove_history(int);
+int		 history_total_bytes(void);
+int		 history_set_pos(int);
+HIST_ENTRY	*previous_history(void);
+HIST_ENTRY	*next_history(void);
+int		 history_search(const char *, int);
+int		 history_search_prefix(const char *, int);
+int		 history_search_pos(const char *, int, int);
+int		 read_history(const char *);
+int		 write_history(const char *);
+int		 history_expand(char *, char **);
+char	       **history_tokenize(const char *);
+const char	*get_history_event(const char *, int *, int);
+char		*history_arg_extract(int, int, const char *);
+
+char		*tilde_expand(char *);
+char		*filename_completion_function(const char *, int);
+char		*username_completion_function(const char *, int);
+int		 rl_complete(int, int);
+int		 rl_read_key(void);
+char	       **completion_matches(const char *, CPFunction *);
+void		 rl_display_match_list(char **, int, int);
+
+int		 rl_insert(int, int);
+void		 rl_reset_terminal(const char *);
+int		 rl_bind_key(int, int (*)(int, int));
+int		 rl_newline(int, int);
+void		 rl_callback_read_char(void);
+void		 rl_callback_handler_install(const char *, VCPFunction *);
+void		 rl_callback_handler_remove(void);
+void		 rl_redisplay(void);
+int		 rl_get_previous_history(int, int);
+void		 rl_prep_terminal(int);
+void		 rl_deprep_terminal(void);
+int		 rl_read_init_file(const char *);
+int		 rl_parse_and_bind(const char *);
+int		 rl_variable_bind(const char *, const char *);
+void		 rl_stuff_char(int);
+int		 rl_add_defun(const char *, Function *, int);
+
+/*
+ * The following are not implemented
+ */
+Keymap		 rl_get_keymap(void);
+Keymap		 rl_make_bare_keymap(void);
+int		 rl_generic_bind(int, const char *, const char *, Keymap);
+int		 rl_bind_key_in_map(int, Function *, Keymap);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _READLINE_H_ */
diff --git a/frontend/libedit/refresh.c b/frontend/libedit/refresh.c
new file mode 100644
index 0000000..f627075
--- /dev/null
+++ b/frontend/libedit/refresh.c
@@ -0,0 +1,1133 @@
+/*	$NetBSD: refresh.c,v 1.27 2005/11/09 22:11:10 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * refresh.c: Lower level screen refreshing functions
+ */
+#include <stdio.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "el.h"
+
+private void	re_addc(EditLine *, int);
+private void	re_update_line(EditLine *, char *, char *, int);
+private void	re_insert (EditLine *, char *, int, int, char *, int);
+private void	re_delete(EditLine *, char *, int, int, int);
+private void	re_fastputc(EditLine *, int);
+private void	re_clear_eol(EditLine *, int, int, int);
+private void	re__strncopy(char *, char *, size_t);
+private void	re__copy_and_pad(char *, const char *, size_t);
+
+#ifdef DEBUG_REFRESH
+private void	re_printstr(EditLine *, const char *, char *, char *);
+#define	__F el->el_errfile
+#define	ELRE_ASSERT(a, b, c)	do 				\
+				    if (/*CONSTCOND*/ a) {	\
+					(void) fprintf b;	\
+					c;			\
+				    }				\
+				while (/*CONSTCOND*/0)
+#define	ELRE_DEBUG(a, b)	ELRE_ASSERT(a,b,;)
+
+/* re_printstr():
+ *	Print a string on the debugging pty
+ */
+private void
+re_printstr(EditLine *el, const char *str, char *f, char *t)
+{
+
+	ELRE_DEBUG(1, (__F, "%s:\"", str));
+	while (f < t)
+		ELRE_DEBUG(1, (__F, "%c", *f++ & 0177));
+	ELRE_DEBUG(1, (__F, "\"\r\n"));
+}
+#else
+#define	ELRE_ASSERT(a, b, c)
+#define	ELRE_DEBUG(a, b)
+#endif
+
+
+/* re_addc():
+ *	Draw c, expanding tabs, control chars etc.
+ */
+private void
+re_addc(EditLine *el, int c)
+{
+
+	if (isprint(c)) {
+		re_putc(el, c, 1);
+		return;
+	}
+	if (c == '\n') {				/* expand the newline */
+		int oldv = el->el_refresh.r_cursor.v;
+		re_putc(el, '\0', 0);			/* assure end of line */
+		if (oldv == el->el_refresh.r_cursor.v) { /* XXX */
+			el->el_refresh.r_cursor.h = 0;	/* reset cursor pos */
+			el->el_refresh.r_cursor.v++;
+		}
+		return;
+	}
+	if (c == '\t') {				/* expand the tab */
+		for (;;) {
+			re_putc(el, ' ', 1);
+			if ((el->el_refresh.r_cursor.h & 07) == 0)
+				break;			/* go until tab stop */
+		}
+	} else if (iscntrl(c)) {
+		re_putc(el, '^', 1);
+		if (c == '\177')
+			re_putc(el, '?', 1);
+		else
+		    /* uncontrolify it; works only for iso8859-1 like sets */
+			re_putc(el, (c | 0100), 1);
+	} else {
+		re_putc(el, '\\', 1);
+		re_putc(el, (int) ((((unsigned int) c >> 6) & 07) + '0'), 1);
+		re_putc(el, (int) ((((unsigned int) c >> 3) & 07) + '0'), 1);
+		re_putc(el, (c & 07) + '0', 1);
+	}
+}
+
+
+/* re_putc():
+ *	Draw the character given
+ */
+protected void
+re_putc(EditLine *el, int c, int shift)
+{
+
+	ELRE_DEBUG(1, (__F, "printing %3.3o '%c'\r\n", c, c));
+
+	el->el_vdisplay[el->el_refresh.r_cursor.v][el->el_refresh.r_cursor.h] = c;
+	if (!shift)
+		return;
+
+	el->el_refresh.r_cursor.h++;	/* advance to next place */
+	if (el->el_refresh.r_cursor.h >= el->el_term.t_size.h) {
+		el->el_vdisplay[el->el_refresh.r_cursor.v][el->el_term.t_size.h] = '\0';
+		/* assure end of line */
+		el->el_refresh.r_cursor.h = 0;	/* reset it. */
+
+		/*
+		 * If we would overflow (input is longer than terminal size),
+		 * emulate scroll by dropping first line and shuffling the rest.
+		 * We do this via pointer shuffling - it's safe in this case
+		 * and we avoid memcpy().
+		 */
+		if (el->el_refresh.r_cursor.v + 1 >= el->el_term.t_size.v) {
+			int i, lins = el->el_term.t_size.v;
+			char *firstline = el->el_vdisplay[0];
+
+			for(i=1; i < lins; i++)
+				el->el_vdisplay[i-1] = el->el_vdisplay[i];
+
+			firstline[0] = '\0';		/* empty the string */	
+			el->el_vdisplay[i-1] = firstline;
+		} else
+			el->el_refresh.r_cursor.v++;
+
+		ELRE_ASSERT(el->el_refresh.r_cursor.v >= el->el_term.t_size.v,
+		    (__F, "\r\nre_putc: overflow! r_cursor.v == %d > %d\r\n",
+		    el->el_refresh.r_cursor.v, el->el_term.t_size.v),
+		    abort());
+	}
+}
+
+
+/* re_refresh():
+ *	draws the new virtual screen image from the current input
+ *  	line, then goes line-by-line changing the real image to the new
+ *	virtual image. The routine to re-draw a line can be replaced
+ *	easily in hopes of a smarter one being placed there.
+ */
+protected void
+re_refresh(EditLine *el)
+{
+	int i, rhdiff;
+	char *cp, *st;
+	coord_t cur;
+#ifdef notyet
+	size_t termsz;
+#endif
+
+	ELRE_DEBUG(1, (__F, "el->el_line.buffer = :%s:\r\n",
+	    el->el_line.buffer));
+
+	/* reset the Drawing cursor */
+	el->el_refresh.r_cursor.h = 0;
+	el->el_refresh.r_cursor.v = 0;
+
+	/* temporarily draw rprompt to calculate its size */
+	prompt_print(el, EL_RPROMPT);
+
+	/* reset the Drawing cursor */
+	el->el_refresh.r_cursor.h = 0;
+	el->el_refresh.r_cursor.v = 0;
+
+	if (el->el_line.cursor >= el->el_line.lastchar) {
+		if (el->el_map.current == el->el_map.alt
+		    && el->el_line.lastchar != el->el_line.buffer)
+			el->el_line.cursor = el->el_line.lastchar - 1;
+		else
+			el->el_line.cursor = el->el_line.lastchar;
+	}
+
+	cur.h = -1;		/* set flag in case I'm not set */
+	cur.v = 0;
+
+	prompt_print(el, EL_PROMPT);
+
+	/* draw the current input buffer */
+#if notyet
+	termsz = el->el_term.t_size.h * el->el_term.t_size.v;
+	if (el->el_line.lastchar - el->el_line.buffer > termsz) {
+		/*
+		 * If line is longer than terminal, process only part
+		 * of line which would influence display.
+		 */
+		size_t rem = (el->el_line.lastchar-el->el_line.buffer)%termsz;
+
+		st = el->el_line.lastchar - rem
+			- (termsz - (((rem / el->el_term.t_size.v) - 1)
+					* el->el_term.t_size.v));
+	} else
+#endif
+		st = el->el_line.buffer;
+
+	for (cp = st; cp < el->el_line.lastchar; cp++) {
+		if (cp == el->el_line.cursor) {
+			/* save for later */
+			cur.h = el->el_refresh.r_cursor.h;
+			cur.v = el->el_refresh.r_cursor.v;
+		}
+		re_addc(el, (unsigned char) *cp);
+	}
+
+	if (cur.h == -1) {	/* if I haven't been set yet, I'm at the end */
+		cur.h = el->el_refresh.r_cursor.h;
+		cur.v = el->el_refresh.r_cursor.v;
+	}
+	rhdiff = el->el_term.t_size.h - el->el_refresh.r_cursor.h -
+	    el->el_rprompt.p_pos.h;
+	if (el->el_rprompt.p_pos.h && !el->el_rprompt.p_pos.v &&
+	    !el->el_refresh.r_cursor.v && rhdiff > 1) {
+		/*
+		 * have a right-hand side prompt that will fit
+		 * on the end of the first line with at least
+		 * one character gap to the input buffer.
+		 */
+		while (--rhdiff > 0)	/* pad out with spaces */
+			re_putc(el, ' ', 1);
+		prompt_print(el, EL_RPROMPT);
+	} else {
+		el->el_rprompt.p_pos.h = 0;	/* flag "not using rprompt" */
+		el->el_rprompt.p_pos.v = 0;
+	}
+
+	re_putc(el, '\0', 0);	/* make line ended with NUL, no cursor shift */
+
+	el->el_refresh.r_newcv = el->el_refresh.r_cursor.v;
+
+	ELRE_DEBUG(1, (__F,
+		"term.h=%d vcur.h=%d vcur.v=%d vdisplay[0]=\r\n:%80.80s:\r\n",
+		el->el_term.t_size.h, el->el_refresh.r_cursor.h,
+		el->el_refresh.r_cursor.v, el->el_vdisplay[0]));
+
+	ELRE_DEBUG(1, (__F, "updating %d lines.\r\n", el->el_refresh.r_newcv));
+	for (i = 0; i <= el->el_refresh.r_newcv; i++) {
+		/* NOTE THAT re_update_line MAY CHANGE el_display[i] */
+		re_update_line(el, el->el_display[i], el->el_vdisplay[i], i);
+
+		/*
+		 * Copy the new line to be the current one, and pad out with
+		 * spaces to the full width of the terminal so that if we try
+		 * moving the cursor by writing the character that is at the
+		 * end of the screen line, it won't be a NUL or some old
+		 * leftover stuff.
+		 */
+		re__copy_and_pad(el->el_display[i], el->el_vdisplay[i],
+		    (size_t) el->el_term.t_size.h);
+	}
+	ELRE_DEBUG(1, (__F,
+	"\r\nel->el_refresh.r_cursor.v=%d,el->el_refresh.r_oldcv=%d i=%d\r\n",
+	    el->el_refresh.r_cursor.v, el->el_refresh.r_oldcv, i));
+
+	if (el->el_refresh.r_oldcv > el->el_refresh.r_newcv)
+		for (; i <= el->el_refresh.r_oldcv; i++) {
+			term_move_to_line(el, i);
+			term_move_to_char(el, 0);
+			term_clear_EOL(el, (int) strlen(el->el_display[i]));
+#ifdef DEBUG_REFRESH
+			term_overwrite(el, "C\b", 2);
+#endif /* DEBUG_REFRESH */
+			el->el_display[i][0] = '\0';
+		}
+
+	el->el_refresh.r_oldcv = el->el_refresh.r_newcv; /* set for next time */
+	ELRE_DEBUG(1, (__F,
+	    "\r\ncursor.h = %d, cursor.v = %d, cur.h = %d, cur.v = %d\r\n",
+	    el->el_refresh.r_cursor.h, el->el_refresh.r_cursor.v,
+	    cur.h, cur.v));
+	term_move_to_line(el, cur.v);	/* go to where the cursor is */
+	term_move_to_char(el, cur.h);
+}
+
+
+/* re_goto_bottom():
+ *	 used to go to last used screen line
+ */
+protected void
+re_goto_bottom(EditLine *el)
+{
+
+	term_move_to_line(el, el->el_refresh.r_oldcv);
+	term__putc('\n');
+	re_clear_display(el);
+	term__flush();
+}
+
+
+/* re_insert():
+ *	insert num characters of s into d (in front of the character)
+ *	at dat, maximum length of d is dlen
+ */
+private void
+/*ARGSUSED*/
+re_insert(EditLine *el __attribute__((__unused__)),
+    char *d, int dat, int dlen, char *s, int num)
+{
+	char *a, *b;
+
+	if (num <= 0)
+		return;
+	if (num > dlen - dat)
+		num = dlen - dat;
+
+	ELRE_DEBUG(1,
+	    (__F, "re_insert() starting: %d at %d max %d, d == \"%s\"\n",
+	    num, dat, dlen, d));
+	ELRE_DEBUG(1, (__F, "s == \"%s\"\n", s));
+
+	/* open up the space for num chars */
+	if (num > 0) {
+		b = d + dlen - 1;
+		a = b - num;
+		while (a >= &d[dat])
+			*b-- = *a--;
+		d[dlen] = '\0';	/* just in case */
+	}
+	ELRE_DEBUG(1, (__F,
+		"re_insert() after insert: %d at %d max %d, d == \"%s\"\n",
+		num, dat, dlen, d));
+	ELRE_DEBUG(1, (__F, "s == \"%s\"\n", s));
+
+	/* copy the characters */
+	for (a = d + dat; (a < d + dlen) && (num > 0); num--)
+		*a++ = *s++;
+
+	ELRE_DEBUG(1,
+	    (__F, "re_insert() after copy: %d at %d max %d, %s == \"%s\"\n",
+	    num, dat, dlen, d, s));
+	ELRE_DEBUG(1, (__F, "s == \"%s\"\n", s));
+}
+
+
+/* re_delete():
+ *	delete num characters d at dat, maximum length of d is dlen
+ */
+private void
+/*ARGSUSED*/
+re_delete(EditLine *el __attribute__((__unused__)),
+    char *d, int dat, int dlen, int num)
+{
+	char *a, *b;
+
+	if (num <= 0)
+		return;
+	if (dat + num >= dlen) {
+		d[dat] = '\0';
+		return;
+	}
+	ELRE_DEBUG(1,
+	    (__F, "re_delete() starting: %d at %d max %d, d == \"%s\"\n",
+	    num, dat, dlen, d));
+
+	/* open up the space for num chars */
+	if (num > 0) {
+		b = d + dat;
+		a = b + num;
+		while (a < &d[dlen])
+			*b++ = *a++;
+		d[dlen] = '\0';	/* just in case */
+	}
+	ELRE_DEBUG(1,
+	    (__F, "re_delete() after delete: %d at %d max %d, d == \"%s\"\n",
+	    num, dat, dlen, d));
+}
+
+
+/* re__strncopy():
+ *	Like strncpy without padding.
+ */
+private void
+re__strncopy(char *a, char *b, size_t n)
+{
+
+	while (n-- && *b)
+		*a++ = *b++;
+}
+
+/* re_clear_eol():
+ *	Find the number of characters we need to clear till the end of line
+ *	in order to make sure that we have cleared the previous contents of
+ *	the line. fx and sx is the number of characters inserted or deleted
+ *	int the first or second diff, diff is the difference between the
+ * 	number of characters between the new and old line.
+ */
+private void
+re_clear_eol(EditLine *el, int fx, int sx, int diff)
+{
+
+	ELRE_DEBUG(1, (__F, "re_clear_eol sx %d, fx %d, diff %d\n",
+	    sx, fx, diff));
+
+	if (fx < 0)
+		fx = -fx;
+	if (sx < 0)
+		sx = -sx;
+	if (fx > diff)
+		diff = fx;
+	if (sx > diff)
+		diff = sx;
+
+	ELRE_DEBUG(1, (__F, "re_clear_eol %d\n", diff));
+	term_clear_EOL(el, diff);
+}
+
+/*****************************************************************
+    re_update_line() is based on finding the middle difference of each line
+    on the screen; vis:
+
+			     /old first difference
+	/beginning of line   |              /old last same       /old EOL
+	v		     v              v                    v
+old:	eddie> Oh, my little gruntle-buggy is to me, as lurgid as
+new:	eddie> Oh, my little buggy says to me, as lurgid as
+	^		     ^        ^			   ^
+	\beginning of line   |        \new last same	   \new end of line
+			     \new first difference
+
+    all are character pointers for the sake of speed.  Special cases for
+    no differences, as well as for end of line additions must be handled.
+**************************************************************** */
+
+/* Minimum at which doing an insert it "worth it".  This should be about
+ * half the "cost" of going into insert mode, inserting a character, and
+ * going back out.  This should really be calculated from the termcap
+ * data...  For the moment, a good number for ANSI terminals.
+ */
+#define	MIN_END_KEEP	4
+
+private void
+re_update_line(EditLine *el, char *old, char *new, int i)
+{
+	char *o, *n, *p, c;
+	char *ofd, *ols, *oe, *nfd, *nls, *ne;
+	char *osb, *ose, *nsb, *nse;
+	int fx, sx;
+
+	/*
+         * find first diff
+         */
+	for (o = old, n = new; *o && (*o == *n); o++, n++)
+		continue;
+	ofd = o;
+	nfd = n;
+
+	/*
+         * Find the end of both old and new
+         */
+	while (*o)
+		o++;
+	/*
+         * Remove any trailing blanks off of the end, being careful not to
+         * back up past the beginning.
+         */
+	while (ofd < o) {
+		if (o[-1] != ' ')
+			break;
+		o--;
+	}
+	oe = o;
+	*oe = '\0';
+
+	while (*n)
+		n++;
+
+	/* remove blanks from end of new */
+	while (nfd < n) {
+		if (n[-1] != ' ')
+			break;
+		n--;
+	}
+	ne = n;
+	*ne = '\0';
+
+	/*
+         * if no diff, continue to next line of redraw
+         */
+	if (*ofd == '\0' && *nfd == '\0') {
+		ELRE_DEBUG(1, (__F, "no difference.\r\n"));
+		return;
+	}
+	/*
+         * find last same pointer
+         */
+	while ((o > ofd) && (n > nfd) && (*--o == *--n))
+		continue;
+	ols = ++o;
+	nls = ++n;
+
+	/*
+         * find same begining and same end
+         */
+	osb = ols;
+	nsb = nls;
+	ose = ols;
+	nse = nls;
+
+	/*
+         * case 1: insert: scan from nfd to nls looking for *ofd
+         */
+	if (*ofd) {
+		for (c = *ofd, n = nfd; n < nls; n++) {
+			if (c == *n) {
+				for (o = ofd, p = n;
+				    p < nls && o < ols && *o == *p;
+				    o++, p++)
+					continue;
+				/*
+				 * if the new match is longer and it's worth
+				 * keeping, then we take it
+				 */
+				if (((nse - nsb) < (p - n)) &&
+				    (2 * (p - n) > n - nfd)) {
+					nsb = n;
+					nse = p;
+					osb = ofd;
+					ose = o;
+				}
+			}
+		}
+	}
+	/*
+         * case 2: delete: scan from ofd to ols looking for *nfd
+         */
+	if (*nfd) {
+		for (c = *nfd, o = ofd; o < ols; o++) {
+			if (c == *o) {
+				for (n = nfd, p = o;
+				    p < ols && n < nls && *p == *n;
+				    p++, n++)
+					continue;
+				/*
+				 * if the new match is longer and it's worth
+				 * keeping, then we take it
+				 */
+				if (((ose - osb) < (p - o)) &&
+				    (2 * (p - o) > o - ofd)) {
+					nsb = nfd;
+					nse = n;
+					osb = o;
+					ose = p;
+				}
+			}
+		}
+	}
+	/*
+         * Pragmatics I: If old trailing whitespace or not enough characters to
+         * save to be worth it, then don't save the last same info.
+         */
+	if ((oe - ols) < MIN_END_KEEP) {
+		ols = oe;
+		nls = ne;
+	}
+	/*
+         * Pragmatics II: if the terminal isn't smart enough, make the data
+         * dumber so the smart update doesn't try anything fancy
+         */
+
+	/*
+         * fx is the number of characters we need to insert/delete: in the
+         * beginning to bring the two same begins together
+         */
+	fx = (nsb - nfd) - (osb - ofd);
+	/*
+         * sx is the number of characters we need to insert/delete: in the
+         * end to bring the two same last parts together
+         */
+	sx = (nls - nse) - (ols - ose);
+
+	if (!EL_CAN_INSERT) {
+		if (fx > 0) {
+			osb = ols;
+			ose = ols;
+			nsb = nls;
+			nse = nls;
+		}
+		if (sx > 0) {
+			ols = oe;
+			nls = ne;
+		}
+		if ((ols - ofd) < (nls - nfd)) {
+			ols = oe;
+			nls = ne;
+		}
+	}
+	if (!EL_CAN_DELETE) {
+		if (fx < 0) {
+			osb = ols;
+			ose = ols;
+			nsb = nls;
+			nse = nls;
+		}
+		if (sx < 0) {
+			ols = oe;
+			nls = ne;
+		}
+		if ((ols - ofd) > (nls - nfd)) {
+			ols = oe;
+			nls = ne;
+		}
+	}
+	/*
+         * Pragmatics III: make sure the middle shifted pointers are correct if
+         * they don't point to anything (we may have moved ols or nls).
+         */
+	/* if the change isn't worth it, don't bother */
+	/* was: if (osb == ose) */
+	if ((ose - osb) < MIN_END_KEEP) {
+		osb = ols;
+		ose = ols;
+		nsb = nls;
+		nse = nls;
+	}
+	/*
+         * Now that we are done with pragmatics we recompute fx, sx
+         */
+	fx = (nsb - nfd) - (osb - ofd);
+	sx = (nls - nse) - (ols - ose);
+
+	ELRE_DEBUG(1, (__F, "fx %d, sx %d\n", fx, sx));
+	ELRE_DEBUG(1, (__F, "ofd %d, osb %d, ose %d, ols %d, oe %d\n",
+		ofd - old, osb - old, ose - old, ols - old, oe - old));
+	ELRE_DEBUG(1, (__F, "nfd %d, nsb %d, nse %d, nls %d, ne %d\n",
+		nfd - new, nsb - new, nse - new, nls - new, ne - new));
+	ELRE_DEBUG(1, (__F,
+		"xxx-xxx:\"00000000001111111111222222222233333333334\"\r\n"));
+	ELRE_DEBUG(1, (__F,
+		"xxx-xxx:\"01234567890123456789012345678901234567890\"\r\n"));
+#ifdef DEBUG_REFRESH
+	re_printstr(el, "old- oe", old, oe);
+	re_printstr(el, "new- ne", new, ne);
+	re_printstr(el, "old-ofd", old, ofd);
+	re_printstr(el, "new-nfd", new, nfd);
+	re_printstr(el, "ofd-osb", ofd, osb);
+	re_printstr(el, "nfd-nsb", nfd, nsb);
+	re_printstr(el, "osb-ose", osb, ose);
+	re_printstr(el, "nsb-nse", nsb, nse);
+	re_printstr(el, "ose-ols", ose, ols);
+	re_printstr(el, "nse-nls", nse, nls);
+	re_printstr(el, "ols- oe", ols, oe);
+	re_printstr(el, "nls- ne", nls, ne);
+#endif /* DEBUG_REFRESH */
+
+	/*
+         * el_cursor.v to this line i MUST be in this routine so that if we
+         * don't have to change the line, we don't move to it. el_cursor.h to
+         * first diff char
+         */
+	term_move_to_line(el, i);
+
+	/*
+         * at this point we have something like this:
+         *
+         * /old                  /ofd    /osb               /ose    /ols     /oe
+         * v.....................v       v..................v       v........v
+         * eddie> Oh, my fredded gruntle-buggy is to me, as foo var lurgid as
+         * eddie> Oh, my fredded quiux buggy is to me, as gruntle-lurgid as
+         * ^.....................^     ^..................^       ^........^
+         * \new                  \nfd  \nsb               \nse     \nls    \ne
+         *
+         * fx is the difference in length between the chars between nfd and
+         * nsb, and the chars between ofd and osb, and is thus the number of
+         * characters to delete if < 0 (new is shorter than old, as above),
+         * or insert (new is longer than short).
+         *
+         * sx is the same for the second differences.
+         */
+
+	/*
+         * if we have a net insert on the first difference, AND inserting the
+         * net amount ((nsb-nfd) - (osb-ofd)) won't push the last useful
+         * character (which is ne if nls != ne, otherwise is nse) off the edge
+	 * of the screen (el->el_term.t_size.h) else we do the deletes first
+	 * so that we keep everything we need to.
+         */
+
+	/*
+         * if the last same is the same like the end, there is no last same
+         * part, otherwise we want to keep the last same part set p to the
+         * last useful old character
+         */
+	p = (ols != oe) ? oe : ose;
+
+	/*
+         * if (There is a diffence in the beginning) && (we need to insert
+         *   characters) && (the number of characters to insert is less than
+         *   the term width)
+	 *	We need to do an insert!
+	 * else if (we need to delete characters)
+	 *	We need to delete characters!
+	 * else
+	 *	No insert or delete
+         */
+	if ((nsb != nfd) && fx > 0 &&
+	    ((p - old) + fx <= el->el_term.t_size.h)) {
+		ELRE_DEBUG(1,
+		    (__F, "first diff insert at %d...\r\n", nfd - new));
+		/*
+		 * Move to the first char to insert, where the first diff is.
+		 */
+		term_move_to_char(el, nfd - new);
+		/*
+		 * Check if we have stuff to keep at end
+		 */
+		if (nsb != ne) {
+			ELRE_DEBUG(1, (__F, "with stuff to keep at end\r\n"));
+			/*
+		         * insert fx chars of new starting at nfd
+		         */
+			if (fx > 0) {
+				ELRE_DEBUG(!EL_CAN_INSERT, (__F,
+				"ERROR: cannot insert in early first diff\n"));
+				term_insertwrite(el, nfd, fx);
+				re_insert(el, old, ofd - old,
+				    el->el_term.t_size.h, nfd, fx);
+			}
+			/*
+		         * write (nsb-nfd) - fx chars of new starting at
+		         * (nfd + fx)
+			 */
+			term_overwrite(el, nfd + fx, (nsb - nfd) - fx);
+			re__strncopy(ofd + fx, nfd + fx,
+			    (size_t) ((nsb - nfd) - fx));
+		} else {
+			ELRE_DEBUG(1, (__F, "without anything to save\r\n"));
+			term_overwrite(el, nfd, (nsb - nfd));
+			re__strncopy(ofd, nfd, (size_t) (nsb - nfd));
+			/*
+		         * Done
+		         */
+			return;
+		}
+	} else if (fx < 0) {
+		ELRE_DEBUG(1,
+		    (__F, "first diff delete at %d...\r\n", ofd - old));
+		/*
+		 * move to the first char to delete where the first diff is
+		 */
+		term_move_to_char(el, ofd - old);
+		/*
+		 * Check if we have stuff to save
+		 */
+		if (osb != oe) {
+			ELRE_DEBUG(1, (__F, "with stuff to save at end\r\n"));
+			/*
+		         * fx is less than zero *always* here but we check
+		         * for code symmetry
+		         */
+			if (fx < 0) {
+				ELRE_DEBUG(!EL_CAN_DELETE, (__F,
+				    "ERROR: cannot delete in first diff\n"));
+				term_deletechars(el, -fx);
+				re_delete(el, old, ofd - old,
+				    el->el_term.t_size.h, -fx);
+			}
+			/*
+		         * write (nsb-nfd) chars of new starting at nfd
+		         */
+			term_overwrite(el, nfd, (nsb - nfd));
+			re__strncopy(ofd, nfd, (size_t) (nsb - nfd));
+
+		} else {
+			ELRE_DEBUG(1, (__F,
+			    "but with nothing left to save\r\n"));
+			/*
+		         * write (nsb-nfd) chars of new starting at nfd
+		         */
+			term_overwrite(el, nfd, (nsb - nfd));
+			re_clear_eol(el, fx, sx, (oe - old) - (ne - new));
+			/*
+		         * Done
+		         */
+			return;
+		}
+	} else
+		fx = 0;
+
+	if (sx < 0 && (ose - old) + fx < el->el_term.t_size.h) {
+		ELRE_DEBUG(1, (__F,
+		    "second diff delete at %d...\r\n", (ose - old) + fx));
+		/*
+		 * Check if we have stuff to delete
+		 */
+		/*
+		 * fx is the number of characters inserted (+) or deleted (-)
+		 */
+
+		term_move_to_char(el, (ose - old) + fx);
+		/*
+		 * Check if we have stuff to save
+		 */
+		if (ols != oe) {
+			ELRE_DEBUG(1, (__F, "with stuff to save at end\r\n"));
+			/*
+		         * Again a duplicate test.
+		         */
+			if (sx < 0) {
+				ELRE_DEBUG(!EL_CAN_DELETE, (__F,
+				    "ERROR: cannot delete in second diff\n"));
+				term_deletechars(el, -sx);
+			}
+			/*
+		         * write (nls-nse) chars of new starting at nse
+		         */
+			term_overwrite(el, nse, (nls - nse));
+		} else {
+			ELRE_DEBUG(1, (__F,
+			    "but with nothing left to save\r\n"));
+			term_overwrite(el, nse, (nls - nse));
+			re_clear_eol(el, fx, sx, (oe - old) - (ne - new));
+		}
+	}
+	/*
+         * if we have a first insert AND WE HAVEN'T ALREADY DONE IT...
+         */
+	if ((nsb != nfd) && (osb - ofd) <= (nsb - nfd) && (fx == 0)) {
+		ELRE_DEBUG(1, (__F, "late first diff insert at %d...\r\n",
+		    nfd - new));
+
+		term_move_to_char(el, nfd - new);
+		/*
+		 * Check if we have stuff to keep at the end
+		 */
+		if (nsb != ne) {
+			ELRE_DEBUG(1, (__F, "with stuff to keep at end\r\n"));
+			/*
+		         * We have to recalculate fx here because we set it
+		         * to zero above as a flag saying that we hadn't done
+		         * an early first insert.
+		         */
+			fx = (nsb - nfd) - (osb - ofd);
+			if (fx > 0) {
+				/*
+				 * insert fx chars of new starting at nfd
+				 */
+				ELRE_DEBUG(!EL_CAN_INSERT, (__F,
+				 "ERROR: cannot insert in late first diff\n"));
+				term_insertwrite(el, nfd, fx);
+				re_insert(el, old, ofd - old,
+				    el->el_term.t_size.h, nfd, fx);
+			}
+			/*
+		         * write (nsb-nfd) - fx chars of new starting at
+		         * (nfd + fx)
+			 */
+			term_overwrite(el, nfd + fx, (nsb - nfd) - fx);
+			re__strncopy(ofd + fx, nfd + fx,
+			    (size_t) ((nsb - nfd) - fx));
+		} else {
+			ELRE_DEBUG(1, (__F, "without anything to save\r\n"));
+			term_overwrite(el, nfd, (nsb - nfd));
+			re__strncopy(ofd, nfd, (size_t) (nsb - nfd));
+		}
+	}
+	/*
+         * line is now NEW up to nse
+         */
+	if (sx >= 0) {
+		ELRE_DEBUG(1, (__F,
+		    "second diff insert at %d...\r\n", nse - new));
+		term_move_to_char(el, nse - new);
+		if (ols != oe) {
+			ELRE_DEBUG(1, (__F, "with stuff to keep at end\r\n"));
+			if (sx > 0) {
+				/* insert sx chars of new starting at nse */
+				ELRE_DEBUG(!EL_CAN_INSERT, (__F,
+				    "ERROR: cannot insert in second diff\n"));
+				term_insertwrite(el, nse, sx);
+			}
+			/*
+		         * write (nls-nse) - sx chars of new starting at
+			 * (nse + sx)
+		         */
+			term_overwrite(el, nse + sx, (nls - nse) - sx);
+		} else {
+			ELRE_DEBUG(1, (__F, "without anything to save\r\n"));
+			term_overwrite(el, nse, (nls - nse));
+
+			/*
+	                 * No need to do a clear-to-end here because we were
+	                 * doing a second insert, so we will have over
+	                 * written all of the old string.
+		         */
+		}
+	}
+	ELRE_DEBUG(1, (__F, "done.\r\n"));
+}
+
+
+/* re__copy_and_pad():
+ *	Copy string and pad with spaces
+ */
+private void
+re__copy_and_pad(char *dst, const char *src, size_t width)
+{
+	size_t i;
+
+	for (i = 0; i < width; i++) {
+		if (*src == '\0')
+			break;
+		*dst++ = *src++;
+	}
+
+	for (; i < width; i++)
+		*dst++ = ' ';
+
+	*dst = '\0';
+}
+
+
+/* re_refresh_cursor():
+ *	Move to the new cursor position
+ */
+protected void
+re_refresh_cursor(EditLine *el)
+{
+	char *cp, c;
+	int h, v, th;
+
+	if (el->el_line.cursor >= el->el_line.lastchar) {
+		if (el->el_map.current == el->el_map.alt
+		    && el->el_line.lastchar != el->el_line.buffer)
+			el->el_line.cursor = el->el_line.lastchar - 1;
+		else
+			el->el_line.cursor = el->el_line.lastchar;
+	}
+
+	/* first we must find where the cursor is... */
+	h = el->el_prompt.p_pos.h;
+	v = el->el_prompt.p_pos.v;
+	th = el->el_term.t_size.h;	/* optimize for speed */
+
+	/* do input buffer to el->el_line.cursor */
+	for (cp = el->el_line.buffer; cp < el->el_line.cursor; cp++) {
+		c = *cp;
+		h++;		/* all chars at least this long */
+
+		if (c == '\n') {/* handle newline in data part too */
+			h = 0;
+			v++;
+		} else {
+			if (c == '\t') {	/* if a tab, to next tab stop */
+				while (h & 07) {
+					h++;
+				}
+			} else if (iscntrl((unsigned char) c)) {
+						/* if control char */
+				h++;
+				if (h > th) {	/* if overflow, compensate */
+					h = 1;
+					v++;
+				}
+			} else if (!isprint((unsigned char) c)) {
+				h += 3;
+				if (h > th) {	/* if overflow, compensate */
+					h = h - th;
+					v++;
+				}
+			}
+		}
+
+		if (h >= th) {	/* check, extra long tabs picked up here also */
+			h = 0;
+			v++;
+		}
+	}
+
+	/* now go there */
+	term_move_to_line(el, v);
+	term_move_to_char(el, h);
+	term__flush();
+}
+
+
+/* re_fastputc():
+ *	Add a character fast.
+ */
+private void
+re_fastputc(EditLine *el, int c)
+{
+
+	term__putc(c);
+	el->el_display[el->el_cursor.v][el->el_cursor.h++] = c;
+	if (el->el_cursor.h >= el->el_term.t_size.h) {
+		/* if we must overflow */
+		el->el_cursor.h = 0;
+
+		/*
+		 * If we would overflow (input is longer than terminal size),
+		 * emulate scroll by dropping first line and shuffling the rest.
+		 * We do this via pointer shuffling - it's safe in this case
+		 * and we avoid memcpy().
+		 */
+		if (el->el_cursor.v + 1 >= el->el_term.t_size.v) {
+			int i, lins = el->el_term.t_size.v;
+			char *firstline = el->el_display[0];
+	
+			for(i=1; i < lins; i++)
+				el->el_display[i-1] = el->el_display[i];
+
+			re__copy_and_pad(firstline, "", 0);
+			el->el_display[i-1] = firstline;
+		} else {
+			el->el_cursor.v++;
+			el->el_refresh.r_oldcv++;
+		}
+		if (EL_HAS_AUTO_MARGINS) {
+			if (EL_HAS_MAGIC_MARGINS) {
+				term__putc(' ');
+				term__putc('\b');
+			}
+		} else {
+			term__putc('\r');
+			term__putc('\n');
+		}
+	}
+}
+
+
+/* re_fastaddc():
+ *	we added just one char, handle it fast.
+ *	Assumes that screen cursor == real cursor
+ */
+protected void
+re_fastaddc(EditLine *el)
+{
+	char c;
+	int rhdiff;
+
+	c = el->el_line.cursor[-1];
+
+	if (c == '\t' || el->el_line.cursor != el->el_line.lastchar) {
+		re_refresh(el);	/* too hard to handle */
+		return;
+	}
+	rhdiff = el->el_term.t_size.h - el->el_cursor.h -
+	    el->el_rprompt.p_pos.h;
+	if (el->el_rprompt.p_pos.h && rhdiff < 3) {
+		re_refresh(el);	/* clear out rprompt if less than 1 char gap */
+		return;
+	}			/* else (only do at end of line, no TAB) */
+	if (iscntrl((unsigned char) c)) {	/* if control char, do caret */
+		char mc = (c == '\177') ? '?' : (c | 0100);
+		re_fastputc(el, '^');
+		re_fastputc(el, mc);
+	} else if (isprint((unsigned char) c)) {	/* normal char */
+		re_fastputc(el, c);
+	} else {
+		re_fastputc(el, '\\');
+		re_fastputc(el, (int)(((((unsigned int)c) >> 6) & 3) + '0'));
+		re_fastputc(el, (int)(((((unsigned int)c) >> 3) & 7) + '0'));
+		re_fastputc(el, (c & 7) + '0');
+	}
+	term__flush();
+}
+
+
+/* re_clear_display():
+ *	clear the screen buffers so that new new prompt starts fresh.
+ */
+protected void
+re_clear_display(EditLine *el)
+{
+	int i;
+
+	el->el_cursor.v = 0;
+	el->el_cursor.h = 0;
+	for (i = 0; i < el->el_term.t_size.v; i++)
+		el->el_display[i][0] = '\0';
+	el->el_refresh.r_oldcv = 0;
+}
+
+
+/* re_clear_lines():
+ *	Make sure all lines are *really* blank
+ */
+protected void
+re_clear_lines(EditLine *el)
+{
+
+	if (EL_CAN_CEOL) {
+		int i;
+		term_move_to_char(el, 0);
+		for (i = 0; i <= el->el_refresh.r_oldcv; i++) {
+			/* for each line on the screen */
+			term_move_to_line(el, i);
+			term_clear_EOL(el, el->el_term.t_size.h);
+		}
+		term_move_to_line(el, 0);
+	} else {
+		term_move_to_line(el, el->el_refresh.r_oldcv);
+					/* go to last line */
+		term__putc('\r');	/* go to BOL */
+		term__putc('\n');	/* go to new line */
+	}
+}
diff --git a/frontend/libedit/refresh.h b/frontend/libedit/refresh.h
new file mode 100644
index 0000000..dd2bd02
--- /dev/null
+++ b/frontend/libedit/refresh.h
@@ -0,0 +1,59 @@
+/*	$NetBSD: refresh.h,v 1.5 2003/08/07 16:44:33 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)refresh.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.refresh.h: Screen refresh functions
+ */
+#ifndef _h_el_refresh
+#define	_h_el_refresh
+
+#include "histedit.h"
+
+typedef struct {
+	coord_t	r_cursor;	/* Refresh cursor position	*/
+	int	r_oldcv;	/* Vertical locations		*/
+	int	r_newcv;
+} el_refresh_t;
+
+protected void	re_putc(EditLine *, int, int);
+protected void	re_clear_lines(EditLine *);
+protected void	re_clear_display(EditLine *);
+protected void	re_refresh(EditLine *);
+protected void	re_refresh_cursor(EditLine *);
+protected void	re_fastaddc(EditLine *);
+protected void	re_goto_bottom(EditLine *);
+
+#endif /* _h_el_refresh */
diff --git a/frontend/libedit/search.c b/frontend/libedit/search.c
new file mode 100644
index 0000000..803b0eb
--- /dev/null
+++ b/frontend/libedit/search.c
@@ -0,0 +1,627 @@
+/*	$NetBSD: search.c,v 1.20 2004/11/04 01:16:03 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * search.c: History and character search functions
+ */
+#include <stdlib.h>
+#include <sys/types.h>
+#if defined(REGEX)
+#include <regex.h>
+#elif defined(REGEXP)
+#include <regexp.h>
+#endif
+#include "el.h"
+
+/*
+ * Adjust cursor in vi mode to include the character under it
+ */
+#define	EL_CURSOR(el) \
+    ((el)->el_line.cursor + (((el)->el_map.type == MAP_VI) && \
+			    ((el)->el_map.current == (el)->el_map.alt)))
+
+/* search_init():
+ *	Initialize the search stuff
+ */
+protected int
+search_init(EditLine *el)
+{
+
+	el->el_search.patbuf = (char *) el_malloc(EL_BUFSIZ);
+	if (el->el_search.patbuf == NULL)
+		return (-1);
+	el->el_search.patlen = 0;
+	el->el_search.patdir = -1;
+	el->el_search.chacha = '\0';
+	el->el_search.chadir = CHAR_FWD;
+	el->el_search.chatflg = 0;
+	return (0);
+}
+
+
+/* search_end():
+ *	Initialize the search stuff
+ */
+protected void
+search_end(EditLine *el)
+{
+
+	el_free((ptr_t) el->el_search.patbuf);
+	el->el_search.patbuf = NULL;
+}
+
+
+#ifdef REGEXP
+/* regerror():
+ *	Handle regular expression errors
+ */
+public void
+/*ARGSUSED*/
+regerror(const char *msg)
+{
+}
+#endif
+
+
+/* el_match():
+ *	Return if string matches pattern
+ */
+protected int
+el_match(const char *str, const char *pat)
+{
+#if defined (REGEX)
+	regex_t re;
+	int rv;
+#elif defined (REGEXP)
+	regexp *rp;
+	int rv;
+#else
+	extern char	*re_comp(const char *);
+	extern int	 re_exec(const char *);
+#endif
+
+	if (strstr(str, pat) != NULL)
+		return (1);
+
+#if defined(REGEX)
+	if (regcomp(&re, pat, 0) == 0) {
+		rv = regexec(&re, str, 0, NULL, 0) == 0;
+		regfree(&re);
+	} else {
+		rv = 0;
+	}
+	return (rv);
+#elif defined(REGEXP)
+	if ((re = regcomp(pat)) != NULL) {
+		rv = regexec(re, str);
+		free((ptr_t) re);
+	} else {
+		rv = 0;
+	}
+	return (rv);
+#else
+	if (re_comp(pat) != NULL)
+		return (0);
+	else
+		return (re_exec(str) == 1);
+#endif
+}
+
+
+/* c_hmatch():
+ *	 return True if the pattern matches the prefix
+ */
+protected int
+c_hmatch(EditLine *el, const char *str)
+{
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "match `%s' with `%s'\n",
+	    el->el_search.patbuf, str);
+#endif /* SDEBUG */
+
+	return (el_match(str, el->el_search.patbuf));
+}
+
+
+/* c_setpat():
+ *	Set the history seatch pattern
+ */
+protected void
+c_setpat(EditLine *el)
+{
+	if (el->el_state.lastcmd != ED_SEARCH_PREV_HISTORY &&
+	    el->el_state.lastcmd != ED_SEARCH_NEXT_HISTORY) {
+		el->el_search.patlen = EL_CURSOR(el) - el->el_line.buffer;
+		if (el->el_search.patlen >= EL_BUFSIZ)
+			el->el_search.patlen = EL_BUFSIZ - 1;
+		if (el->el_search.patlen != 0) {
+			(void) strncpy(el->el_search.patbuf, el->el_line.buffer,
+			    el->el_search.patlen);
+			el->el_search.patbuf[el->el_search.patlen] = '\0';
+		} else
+			el->el_search.patlen = strlen(el->el_search.patbuf);
+	}
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "\neventno = %d\n",
+	    el->el_history.eventno);
+	(void) fprintf(el->el_errfile, "patlen = %d\n", el->el_search.patlen);
+	(void) fprintf(el->el_errfile, "patbuf = \"%s\"\n",
+	    el->el_search.patbuf);
+	(void) fprintf(el->el_errfile, "cursor %d lastchar %d\n",
+	    EL_CURSOR(el) - el->el_line.buffer,
+	    el->el_line.lastchar - el->el_line.buffer);
+#endif
+}
+
+
+/* ce_inc_search():
+ *	Emacs incremental search
+ */
+protected el_action_t
+ce_inc_search(EditLine *el, int dir)
+{
+	static const char STRfwd[] = {'f', 'w', 'd', '\0'},
+	     STRbck[] = {'b', 'c', 'k', '\0'};
+	static char pchar = ':';/* ':' = normal, '?' = failed */
+	static char endcmd[2] = {'\0', '\0'};
+	char ch, *ocursor = el->el_line.cursor, oldpchar = pchar;
+	const char *cp;
+
+	el_action_t ret = CC_NORM;
+
+	int ohisteventno = el->el_history.eventno;
+	int oldpatlen = el->el_search.patlen;
+	int newdir = dir;
+	int done, redo;
+
+	if (el->el_line.lastchar + sizeof(STRfwd) / sizeof(char) + 2 +
+	    el->el_search.patlen >= el->el_line.limit)
+		return (CC_ERROR);
+
+	for (;;) {
+
+		if (el->el_search.patlen == 0) {	/* first round */
+			pchar = ':';
+#ifdef ANCHOR
+#define	LEN	2
+			el->el_search.patbuf[el->el_search.patlen++] = '.';
+			el->el_search.patbuf[el->el_search.patlen++] = '*';
+#else
+#define	LEN	0
+#endif
+		}
+		done = redo = 0;
+		*el->el_line.lastchar++ = '\n';
+		for (cp = (newdir == ED_SEARCH_PREV_HISTORY) ? STRbck : STRfwd;
+		    *cp; *el->el_line.lastchar++ = *cp++)
+			continue;
+		*el->el_line.lastchar++ = pchar;
+		for (cp = &el->el_search.patbuf[LEN];
+		    cp < &el->el_search.patbuf[el->el_search.patlen];
+		    *el->el_line.lastchar++ = *cp++)
+			continue;
+		*el->el_line.lastchar = '\0';
+		re_refresh(el);
+
+		if (el_getc(el, &ch) != 1)
+			return (ed_end_of_file(el, 0));
+
+		switch (el->el_map.current[(unsigned char) ch]) {
+		case ED_INSERT:
+		case ED_DIGIT:
+			if (el->el_search.patlen >= EL_BUFSIZ - LEN)
+				term_beep(el);
+			else {
+				el->el_search.patbuf[el->el_search.patlen++] =
+				    ch;
+				*el->el_line.lastchar++ = ch;
+				*el->el_line.lastchar = '\0';
+				re_refresh(el);
+			}
+			break;
+
+		case EM_INC_SEARCH_NEXT:
+			newdir = ED_SEARCH_NEXT_HISTORY;
+			redo++;
+			break;
+
+		case EM_INC_SEARCH_PREV:
+			newdir = ED_SEARCH_PREV_HISTORY;
+			redo++;
+			break;
+
+		case ED_DELETE_PREV_CHAR:
+			if (el->el_search.patlen > LEN)
+				done++;
+			else
+				term_beep(el);
+			break;
+
+		default:
+			switch (ch) {
+			case 0007:	/* ^G: Abort */
+				ret = CC_ERROR;
+				done++;
+				break;
+
+			case 0027:	/* ^W: Append word */
+			/* No can do if globbing characters in pattern */
+				for (cp = &el->el_search.patbuf[LEN];; cp++)
+				    if (cp >= &el->el_search.patbuf[
+					el->el_search.patlen]) {
+					el->el_line.cursor +=
+					    el->el_search.patlen - LEN - 1;
+					cp = c__next_word(el->el_line.cursor,
+					    el->el_line.lastchar, 1,
+					    ce__isword);
+					while (el->el_line.cursor < cp &&
+					    *el->el_line.cursor != '\n') {
+						if (el->el_search.patlen >=
+						    EL_BUFSIZ - LEN) {
+							term_beep(el);
+							break;
+						}
+						el->el_search.patbuf[el->el_search.patlen++] =
+						    *el->el_line.cursor;
+						*el->el_line.lastchar++ =
+						    *el->el_line.cursor++;
+					}
+					el->el_line.cursor = ocursor;
+					*el->el_line.lastchar = '\0';
+					re_refresh(el);
+					break;
+				    } else if (isglob(*cp)) {
+					    term_beep(el);
+					    break;
+				    }
+				break;
+
+			default:	/* Terminate and execute cmd */
+				endcmd[0] = ch;
+				el_push(el, endcmd);
+				/* FALLTHROUGH */
+
+			case 0033:	/* ESC: Terminate */
+				ret = CC_REFRESH;
+				done++;
+				break;
+			}
+			break;
+		}
+
+		while (el->el_line.lastchar > el->el_line.buffer &&
+		    *el->el_line.lastchar != '\n')
+			*el->el_line.lastchar-- = '\0';
+		*el->el_line.lastchar = '\0';
+
+		if (!done) {
+
+			/* Can't search if unmatched '[' */
+			for (cp = &el->el_search.patbuf[el->el_search.patlen-1],
+			    ch = ']';
+			    cp >= &el->el_search.patbuf[LEN];
+			    cp--)
+				if (*cp == '[' || *cp == ']') {
+					ch = *cp;
+					break;
+				}
+			if (el->el_search.patlen > LEN && ch != '[') {
+				if (redo && newdir == dir) {
+					if (pchar == '?') { /* wrap around */
+						el->el_history.eventno =
+						    newdir == ED_SEARCH_PREV_HISTORY ? 0 : 0x7fffffff;
+						if (hist_get(el) == CC_ERROR)
+							/* el->el_history.event
+							 * no was fixed by
+							 * first call */
+							(void) hist_get(el);
+						el->el_line.cursor = newdir ==
+						    ED_SEARCH_PREV_HISTORY ?
+						    el->el_line.lastchar :
+						    el->el_line.buffer;
+					} else
+						el->el_line.cursor +=
+						    newdir ==
+						    ED_SEARCH_PREV_HISTORY ?
+						    -1 : 1;
+				}
+#ifdef ANCHOR
+				el->el_search.patbuf[el->el_search.patlen++] =
+				    '.';
+				el->el_search.patbuf[el->el_search.patlen++] =
+				    '*';
+#endif
+				el->el_search.patbuf[el->el_search.patlen] =
+				    '\0';
+				if (el->el_line.cursor < el->el_line.buffer ||
+				    el->el_line.cursor > el->el_line.lastchar ||
+				    (ret = ce_search_line(el, newdir))
+				    == CC_ERROR) {
+					/* avoid c_setpat */
+					el->el_state.lastcmd =
+					    (el_action_t) newdir;
+					ret = newdir == ED_SEARCH_PREV_HISTORY ?
+					    ed_search_prev_history(el, 0) :
+					    ed_search_next_history(el, 0);
+					if (ret != CC_ERROR) {
+						el->el_line.cursor = newdir ==
+						    ED_SEARCH_PREV_HISTORY ?
+						    el->el_line.lastchar :
+						    el->el_line.buffer;
+						(void) ce_search_line(el,
+						    newdir);
+					}
+				}
+				el->el_search.patlen -= LEN;
+				el->el_search.patbuf[el->el_search.patlen] =
+				    '\0';
+				if (ret == CC_ERROR) {
+					term_beep(el);
+					if (el->el_history.eventno !=
+					    ohisteventno) {
+						el->el_history.eventno =
+						    ohisteventno;
+						if (hist_get(el) == CC_ERROR)
+							return (CC_ERROR);
+					}
+					el->el_line.cursor = ocursor;
+					pchar = '?';
+				} else {
+					pchar = ':';
+				}
+			}
+			ret = ce_inc_search(el, newdir);
+
+			if (ret == CC_ERROR && pchar == '?' && oldpchar == ':')
+				/*
+				 * break abort of failed search at last
+				 * non-failed
+				 */
+				ret = CC_NORM;
+
+		}
+		if (ret == CC_NORM || (ret == CC_ERROR && oldpatlen == 0)) {
+			/* restore on normal return or error exit */
+			pchar = oldpchar;
+			el->el_search.patlen = oldpatlen;
+			if (el->el_history.eventno != ohisteventno) {
+				el->el_history.eventno = ohisteventno;
+				if (hist_get(el) == CC_ERROR)
+					return (CC_ERROR);
+			}
+			el->el_line.cursor = ocursor;
+			if (ret == CC_ERROR)
+				re_refresh(el);
+		}
+		if (done || ret != CC_NORM)
+			return (ret);
+	}
+}
+
+
+/* cv_search():
+ *	Vi search.
+ */
+protected el_action_t
+cv_search(EditLine *el, int dir)
+{
+	char ch;
+	char tmpbuf[EL_BUFSIZ];
+	int tmplen;
+
+#ifdef ANCHOR
+	tmpbuf[0] = '.';
+	tmpbuf[1] = '*';
+#endif
+	tmplen = LEN;
+
+	el->el_search.patdir = dir;
+
+	tmplen = c_gets(el, &tmpbuf[LEN],
+		dir == ED_SEARCH_PREV_HISTORY ? "\n/" : "\n?" );
+	if (tmplen == -1)
+		return CC_REFRESH;
+
+	tmplen += LEN;
+	ch = tmpbuf[tmplen];
+	tmpbuf[tmplen] = '\0';
+
+	if (tmplen == LEN) {
+		/*
+		 * Use the old pattern, but wild-card it.
+		 */
+		if (el->el_search.patlen == 0) {
+			re_refresh(el);
+			return (CC_ERROR);
+		}
+#ifdef ANCHOR
+		if (el->el_search.patbuf[0] != '.' &&
+		    el->el_search.patbuf[0] != '*') {
+			(void) strncpy(tmpbuf, el->el_search.patbuf,
+			    sizeof(tmpbuf) - 1);
+			el->el_search.patbuf[0] = '.';
+			el->el_search.patbuf[1] = '*';
+			(void) strncpy(&el->el_search.patbuf[2], tmpbuf,
+			    EL_BUFSIZ - 3);
+			el->el_search.patlen++;
+			el->el_search.patbuf[el->el_search.patlen++] = '.';
+			el->el_search.patbuf[el->el_search.patlen++] = '*';
+			el->el_search.patbuf[el->el_search.patlen] = '\0';
+		}
+#endif
+	} else {
+#ifdef ANCHOR
+		tmpbuf[tmplen++] = '.';
+		tmpbuf[tmplen++] = '*';
+#endif
+		tmpbuf[tmplen] = '\0';
+		(void) strncpy(el->el_search.patbuf, tmpbuf, EL_BUFSIZ - 1);
+		el->el_search.patlen = tmplen;
+	}
+	el->el_state.lastcmd = (el_action_t) dir;	/* avoid c_setpat */
+	el->el_line.cursor = el->el_line.lastchar = el->el_line.buffer;
+	if ((dir == ED_SEARCH_PREV_HISTORY ? ed_search_prev_history(el, 0) :
+	    ed_search_next_history(el, 0)) == CC_ERROR) {
+		re_refresh(el);
+		return (CC_ERROR);
+	}
+	if (ch == 0033) {
+		re_refresh(el);
+		return ed_newline(el, 0);
+	}
+	return (CC_REFRESH);
+}
+
+
+/* ce_search_line():
+ *	Look for a pattern inside a line
+ */
+protected el_action_t
+ce_search_line(EditLine *el, int dir)
+{
+	char *cp = el->el_line.cursor;
+	char *pattern = el->el_search.patbuf;
+	char oc, *ocp;
+#ifdef ANCHOR
+	ocp = &pattern[1];
+	oc = *ocp;
+	*ocp = '^';
+#else
+	ocp = pattern;
+	oc = *ocp;
+#endif
+
+	if (dir == ED_SEARCH_PREV_HISTORY) {
+		for (; cp >= el->el_line.buffer; cp--) {
+			if (el_match(cp, ocp)) {
+				*ocp = oc;
+				el->el_line.cursor = cp;
+				return (CC_NORM);
+			}
+		}
+		*ocp = oc;
+		return (CC_ERROR);
+	} else {
+		for (; *cp != '\0' && cp < el->el_line.limit; cp++) {
+			if (el_match(cp, ocp)) {
+				*ocp = oc;
+				el->el_line.cursor = cp;
+				return (CC_NORM);
+			}
+		}
+		*ocp = oc;
+		return (CC_ERROR);
+	}
+}
+
+
+/* cv_repeat_srch():
+ *	Vi repeat search
+ */
+protected el_action_t
+cv_repeat_srch(EditLine *el, int c)
+{
+
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "dir %d patlen %d patbuf %s\n",
+	    c, el->el_search.patlen, el->el_search.patbuf);
+#endif
+
+	el->el_state.lastcmd = (el_action_t) c;	/* Hack to stop c_setpat */
+	el->el_line.lastchar = el->el_line.buffer;
+
+	switch (c) {
+	case ED_SEARCH_NEXT_HISTORY:
+		return (ed_search_next_history(el, 0));
+	case ED_SEARCH_PREV_HISTORY:
+		return (ed_search_prev_history(el, 0));
+	default:
+		return (CC_ERROR);
+	}
+}
+
+
+/* cv_csearch():
+ *	Vi character search
+ */
+protected el_action_t
+cv_csearch(EditLine *el, int direction, int ch, int count, int tflag)
+{
+	char *cp;
+
+	if (ch == 0)
+		return CC_ERROR;
+
+	if (ch == -1) {
+		char c;
+		if (el_getc(el, &c) != 1)
+			return ed_end_of_file(el, 0);
+		ch = c;
+	}
+
+	/* Save for ';' and ',' commands */
+	el->el_search.chacha = ch;
+	el->el_search.chadir = direction;
+	el->el_search.chatflg = tflag;
+
+	cp = el->el_line.cursor;
+	while (count--) {
+		if (*cp == ch)
+			cp += direction;
+		for (;;cp += direction) {
+			if (cp >= el->el_line.lastchar)
+				return CC_ERROR;
+			if (cp < el->el_line.buffer)
+				return CC_ERROR;
+			if (*cp == ch)
+				break;
+		}
+	}
+
+	if (tflag)
+		cp -= direction;
+
+	el->el_line.cursor = cp;
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		if (direction > 0)
+			el->el_line.cursor++;
+		cv_delfini(el);
+		return CC_REFRESH;
+	}
+	return CC_CURSOR;
+}
diff --git a/frontend/libedit/search.h b/frontend/libedit/search.h
new file mode 100644
index 0000000..2aa8f98
--- /dev/null
+++ b/frontend/libedit/search.h
@@ -0,0 +1,66 @@
+/*	$NetBSD: search.h,v 1.8 2003/10/18 23:27:36 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)search.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.search.h: Line and history searching utilities
+ */
+#ifndef _h_el_search
+#define	_h_el_search
+
+#include "histedit.h"
+
+typedef struct el_search_t {
+	char	*patbuf;		/* The pattern buffer		*/
+	size_t	 patlen;		/* Length of the pattern buffer	*/
+	int	 patdir;		/* Direction of the last search	*/
+	int	 chadir;		/* Character search direction	*/
+	char	 chacha;		/* Character we are looking for	*/
+	char	 chatflg;		/* 0 if f, 1 if t */
+} el_search_t;
+
+
+protected int		el_match(const char *, const char *);
+protected int		search_init(EditLine *);
+protected void		search_end(EditLine *);
+protected int		c_hmatch(EditLine *, const char *);
+protected void		c_setpat(EditLine *);
+protected el_action_t	ce_inc_search(EditLine *, int);
+protected el_action_t	cv_search(EditLine *, int);
+protected el_action_t	ce_search_line(EditLine *, int);
+protected el_action_t	cv_repeat_srch(EditLine *, int);
+protected el_action_t	cv_csearch(EditLine *, int, int, int, int);
+
+#endif /* _h_el_search */
diff --git a/frontend/libedit/sig.c b/frontend/libedit/sig.c
new file mode 100644
index 0000000..2bdad98
--- /dev/null
+++ b/frontend/libedit/sig.c
@@ -0,0 +1,188 @@
+/*	$NetBSD: sig.c,v 1.11 2003/08/07 16:44:33 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * sig.c: Signal handling stuff.
+ *	  our policy is to trap all signals, set a good state
+ *	  and pass the ball to our caller.
+ */
+#include "el.h"
+#include <stdlib.h>
+
+private EditLine *sel = NULL;
+
+private const int sighdl[] = {
+#define	_DO(a)	(a),
+	ALLSIGS
+#undef	_DO
+	- 1
+};
+
+private void sig_handler(int);
+
+/* sig_handler():
+ *	This is the handler called for all signals
+ *	XXX: we cannot pass any data so we just store the old editline
+ *	state in a private variable
+ */
+private void
+sig_handler(int signo)
+{
+	int i;
+	sigset_t nset, oset;
+
+	(void) sigemptyset(&nset);
+	(void) sigaddset(&nset, signo);
+	(void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+	switch (signo) {
+	case SIGCONT:
+		tty_rawmode(sel);
+		if (ed_redisplay(sel, 0) == CC_REFRESH)
+			re_refresh(sel);
+		term__flush();
+		break;
+
+	case SIGWINCH:
+		el_resize(sel);
+		break;
+
+	default:
+		tty_cookedmode(sel);
+		break;
+	}
+
+	for (i = 0; sighdl[i] != -1; i++)
+		if (signo == sighdl[i])
+			break;
+
+	(void) signal(signo, sel->el_signal[i]);
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+	(void) kill(0, signo);
+}
+
+
+/* sig_init():
+ *	Initialize all signal stuff
+ */
+protected int
+sig_init(EditLine *el)
+{
+	int i;
+	sigset_t nset, oset;
+
+	(void) sigemptyset(&nset);
+#define	_DO(a) (void) sigaddset(&nset, a);
+	ALLSIGS
+#undef	_DO
+	    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+#define	SIGSIZE (sizeof(sighdl) / sizeof(sighdl[0]) * sizeof(el_signalhandler_t))
+
+	el->el_signal = (el_signalhandler_t *) el_malloc(SIGSIZE);
+	if (el->el_signal == NULL)
+		return (-1);
+	for (i = 0; sighdl[i] != -1; i++)
+		el->el_signal[i] = SIG_ERR;
+
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+
+	return (0);
+}
+
+
+/* sig_end():
+ *	Clear all signal stuff
+ */
+protected void
+sig_end(EditLine *el)
+{
+
+	el_free((ptr_t) el->el_signal);
+	el->el_signal = NULL;
+}
+
+
+/* sig_set():
+ *	set all the signal handlers
+ */
+protected void
+sig_set(EditLine *el)
+{
+	int i;
+	sigset_t nset, oset;
+
+	(void) sigemptyset(&nset);
+#define	_DO(a) (void) sigaddset(&nset, a);
+	ALLSIGS
+#undef	_DO
+	    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+	for (i = 0; sighdl[i] != -1; i++) {
+		el_signalhandler_t s;
+		/* This could happen if we get interrupted */
+		if ((s = signal(sighdl[i], sig_handler)) != sig_handler)
+			el->el_signal[i] = s;
+	}
+	sel = el;
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
+
+
+/* sig_clr():
+ *	clear all the signal handlers
+ */
+protected void
+sig_clr(EditLine *el)
+{
+	int i;
+	sigset_t nset, oset;
+
+	(void) sigemptyset(&nset);
+#define	_DO(a) (void) sigaddset(&nset, a);
+	ALLSIGS
+#undef	_DO
+	    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+	for (i = 0; sighdl[i] != -1; i++)
+		if (el->el_signal[i] != SIG_ERR)
+			(void) signal(sighdl[i], el->el_signal[i]);
+
+	sel = NULL;		/* we are going to die if the handler is
+				 * called */
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
diff --git a/frontend/libedit/sig.h b/frontend/libedit/sig.h
new file mode 100644
index 0000000..0bf1fc3
--- /dev/null
+++ b/frontend/libedit/sig.h
@@ -0,0 +1,69 @@
+/*	$NetBSD: sig.h,v 1.5 2003/08/07 16:44:33 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sig.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.sig.h: Signal handling functions
+ */
+#ifndef _h_el_sig
+#define	_h_el_sig
+
+#include <signal.h>
+
+#include "histedit.h"
+
+/*
+ * Define here all the signals we are going to handle
+ * The _DO macro is used to iterate in the source code
+ */
+#define	ALLSIGS		\
+	_DO(SIGINT)	\
+	_DO(SIGTSTP)	\
+	_DO(SIGSTOP)	\
+	_DO(SIGQUIT)	\
+	_DO(SIGHUP)	\
+	_DO(SIGTERM)	\
+	_DO(SIGCONT)	\
+	_DO(SIGWINCH)
+
+typedef void (*el_signalhandler_t)(int);
+typedef el_signalhandler_t *el_signal_t;
+
+protected void	sig_end(EditLine*);
+protected int	sig_init(EditLine*);
+protected void	sig_set(EditLine*);
+protected void	sig_clr(EditLine*);
+
+#endif /* _h_el_sig */
diff --git a/frontend/libedit/strlcat.c b/frontend/libedit/strlcat.c
new file mode 100644
index 0000000..bf1c89f
--- /dev/null
+++ b/frontend/libedit/strlcat.c
@@ -0,0 +1,74 @@
+/*	$NetBSD: strlcat.c,v 1.2 2006/03/30 20:37:51 christos Exp $	*/
+/*	$OpenBSD: strlcat.c,v 1.10 2003/04/12 21:56:39 millert Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
+ * FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+#include "sys.h"
+
+#include <sys/types.h>
+#include <assert.h>
+#include <string.h>
+
+#ifdef _LIBC
+# ifdef __weak_alias
+__weak_alias(strlcat, _strlcat)
+# endif
+#endif
+
+#if !HAVE_STRLCAT
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+strlcat(dst, src, siz)
+	char *dst;
+	const char *src;
+	size_t siz;
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+	size_t dlen;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(src != NULL);
+
+	/* Find the end of dst and adjust bytes left but don't go past end */
+	while (n-- != 0 && *d != '\0')
+		d++;
+	dlen = d - dst;
+	n = siz - dlen;
+
+	if (n == 0)
+		return(dlen + strlen(s));
+	while (*s != '\0') {
+		if (n != 1) {
+			*d++ = *s;
+			n--;
+		}
+		s++;
+	}
+	*d = '\0';
+
+	return(dlen + (s - src));	/* count does not include NUL */
+}
+#endif
diff --git a/frontend/libedit/strlcpy.c b/frontend/libedit/strlcpy.c
new file mode 100644
index 0000000..9587d4c
--- /dev/null
+++ b/frontend/libedit/strlcpy.c
@@ -0,0 +1,70 @@
+/*	$NetBSD: strlcpy.c,v 1.2 2006/03/30 20:37:51 christos Exp $	*/
+/*	$OpenBSD: strlcpy.c,v 1.7 2003/04/12 21:56:39 millert Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
+ * FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+#include "sys.h"
+
+#include <sys/types.h>
+#include <assert.h>
+#include <string.h>
+
+#ifdef _LIBC
+# ifdef __weak_alias
+__weak_alias(strlcpy, _strlcpy)
+# endif
+#endif
+
+#if !HAVE_STRLCPY
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(dst, src, siz)
+	char *dst;
+	const char *src;
+	size_t siz;
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(src != NULL);
+
+	/* Copy as many bytes as will fit */
+	if (n != 0 && --n != 0) {
+		do {
+			if ((*d++ = *s++) == 0)
+				break;
+		} while (--n != 0);
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
+#endif
diff --git a/frontend/libedit/sys.h b/frontend/libedit/sys.h
new file mode 100644
index 0000000..fb710a5
--- /dev/null
+++ b/frontend/libedit/sys.h
@@ -0,0 +1,154 @@
+/*	$NetBSD: sys.h,v 1.9 2004/01/17 17:57:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sys.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * sys.h: Put all the stupid compiler and system dependencies here...
+ */
+#ifndef _h_sys
+#define	_h_sys
+
+#include <config.h>
+
+#ifdef HAVE_SYS_CDEFS_H
+#include <sys/cdefs.h>
+#endif
+
+#if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__)  || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
+# define __attribute__(A)
+#endif
+
+#ifndef __P
+# define __P(x) x
+#endif
+
+#ifndef _DIAGASSERT
+# define _DIAGASSERT(x)
+#endif
+
+#ifndef __BEGIN_DECLS
+# ifdef  __cplusplus
+#  define __BEGIN_DECLS  extern "C" {
+#  define __END_DECLS    }
+# else
+#  define __BEGIN_DECLS
+#  define __END_DECLS
+# endif
+#endif
+ 
+#ifndef public
+# define public		/* Externally visible functions/variables */
+#endif
+
+#ifndef private
+# define private	static	/* Always hidden internals */
+#endif
+
+#ifndef protected
+# define protected	/* Redefined from elsewhere to "static" */
+			/* When we want to hide everything	*/
+#endif
+
+#ifndef HAVE_U_INT32_T
+typedef unsigned int  u_int32_t;
+#endif
+
+#ifndef _PTR_T
+# define _PTR_T
+typedef void	*ptr_t;
+#endif
+
+#ifndef _IOCTL_T
+# define _IOCTL_T
+typedef void	*ioctl_t;
+#endif
+
+#include <stdio.h>
+
+#ifndef HAVE_STRLCAT
+#define	strlcat libedit_strlcat
+size_t	strlcat(char *dst, const char *src, size_t size);
+#endif
+
+#ifndef HAVE_STRLCPY
+#define	strlcpy libedit_strlcpy
+size_t	strlcpy(char *dst, const char *src, size_t size);
+#endif
+
+#ifndef HAVE_FGETLN
+#define	fgetln libedit_fgetln
+char	*fgetln(FILE *fp, size_t *len);
+#endif
+
+#define	REGEX		/* Use POSIX.2 regular expression functions */
+#undef	REGEXP		/* Use UNIX V8 regular expression functions */
+
+#ifdef notdef
+# undef REGEX
+# undef REGEXP
+# include <malloc.h>
+# ifdef __GNUC__
+/*
+ * Broken hdrs.
+ */
+extern int	tgetent(const char *bp, char *name);
+extern int	tgetflag(const char *id);
+extern int	tgetnum(const char *id);
+extern char    *tgetstr(const char *id, char **area);
+extern char    *tgoto(const char *cap, int col, int row);
+extern int	tputs(const char *str, int affcnt, int (*putc)(int));
+extern char    *getenv(const char *);
+extern int	fprintf(FILE *, const char *, ...);
+extern int	sigsetmask(int);
+extern int	sigblock(int);
+extern int	fputc(int, FILE *);
+extern int	fgetc(FILE *);
+extern int	fflush(FILE *);
+extern int	tolower(int);
+extern int	toupper(int);
+extern int	errno, sys_nerr;
+extern char	*sys_errlist[];
+extern void	perror(const char *);
+#  include <string.h>
+#  define strerror(e)	sys_errlist[e]
+# endif
+# ifdef SABER
+extern ptr_t    memcpy(ptr_t, const ptr_t, size_t);
+extern ptr_t    memset(ptr_t, int, size_t);
+# endif
+extern char    *fgetline(FILE *, int *);
+#endif
+
+#endif /* _h_sys */
diff --git a/frontend/libedit/term.c b/frontend/libedit/term.c
new file mode 100644
index 0000000..19dfd2e
--- /dev/null
+++ b/frontend/libedit/term.c
@@ -0,0 +1,1623 @@
+/*	$NetBSD: term.c,v 1.45 2006/03/18 19:23:14 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * term.c: Editor/termcap-curses interface
+ *	   We have to declare a static variable here, since the
+ *	   termcap putchar routine does not take an argument!
+ */
+#include <stdio.h>
+#include <signal.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifdef HAVE_CURSES_H
+# include <curses.h>
+#elif HAVE_NCURSES_H
+# include <ncurses.h>
+#endif
+
+#ifdef HAVE_TERMCAP_H
+# include <termcap.h>
+#elif HAVE_TERMCAP_TERMCAP_H
+# include <termcap/termcap.h>
+#else
+# include <ncurses/termcap.h>
+#endif
+
+/* Solaris's term.h does horrid things. */
+#if (defined(HAVE_TERM_H) && !defined(_SUNOS))
+# include <term.h>
+#endif
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include "el.h"
+
+/*
+ * IMPORTANT NOTE: these routines are allowed to look at the current screen
+ * and the current possition assuming that it is correct.  If this is not
+ * true, then the update will be WRONG!  This is (should be) a valid
+ * assumption...
+ */
+
+#define	TC_BUFSIZE	2048
+
+#define	GoodStr(a)	(el->el_term.t_str[a] != NULL && \
+			    el->el_term.t_str[a][0] != '\0')
+#define	Str(a)		el->el_term.t_str[a]
+#define	Val(a)		el->el_term.t_val[a]
+
+#ifdef notdef
+private const struct {
+	const char *b_name;
+	int b_rate;
+} baud_rate[] = {
+#ifdef B0
+	{ "0", B0 },
+#endif
+#ifdef B50
+	{ "50", B50 },
+#endif
+#ifdef B75
+	{ "75", B75 },
+#endif
+#ifdef B110
+	{ "110", B110 },
+#endif
+#ifdef B134
+	{ "134", B134 },
+#endif
+#ifdef B150
+	{ "150", B150 },
+#endif
+#ifdef B200
+	{ "200", B200 },
+#endif
+#ifdef B300
+	{ "300", B300 },
+#endif
+#ifdef B600
+	{ "600", B600 },
+#endif
+#ifdef B900
+	{ "900", B900 },
+#endif
+#ifdef B1200
+	{ "1200", B1200 },
+#endif
+#ifdef B1800
+	{ "1800", B1800 },
+#endif
+#ifdef B2400
+	{ "2400", B2400 },
+#endif
+#ifdef B3600
+	{ "3600", B3600 },
+#endif
+#ifdef B4800
+	{ "4800", B4800 },
+#endif
+#ifdef B7200
+	{ "7200", B7200 },
+#endif
+#ifdef B9600
+	{ "9600", B9600 },
+#endif
+#ifdef EXTA
+	{ "19200", EXTA },
+#endif
+#ifdef B19200
+	{ "19200", B19200 },
+#endif
+#ifdef EXTB
+	{ "38400", EXTB },
+#endif
+#ifdef B38400
+	{ "38400", B38400 },
+#endif
+	{ NULL, 0 }
+};
+#endif
+
+private const struct termcapstr {
+	const char *name;
+	const char *long_name;
+} tstr[] = {
+#define	T_al	0
+	{ "al", "add new blank line" },
+#define	T_bl	1
+	{ "bl", "audible bell" },
+#define	T_cd	2
+	{ "cd", "clear to bottom" },
+#define	T_ce	3
+	{ "ce", "clear to end of line" },
+#define	T_ch	4
+	{ "ch", "cursor to horiz pos" },
+#define	T_cl	5
+	{ "cl", "clear screen" },
+#define	T_dc	6
+	{ "dc", "delete a character" },
+#define	T_dl	7
+	{ "dl", "delete a line" },
+#define	T_dm	8
+	{ "dm", "start delete mode" },
+#define	T_ed	9
+	{ "ed", "end delete mode" },
+#define	T_ei	10
+	{ "ei", "end insert mode" },
+#define	T_fs	11
+	{ "fs", "cursor from status line" },
+#define	T_ho	12
+	{ "ho", "home cursor" },
+#define	T_ic	13
+	{ "ic", "insert character" },
+#define	T_im	14
+	{ "im", "start insert mode" },
+#define	T_ip	15
+	{ "ip", "insert padding" },
+#define	T_kd	16
+	{ "kd", "sends cursor down" },
+#define	T_kl	17
+	{ "kl", "sends cursor left" },
+#define	T_kr	18
+	{ "kr", "sends cursor right" },
+#define	T_ku	19
+	{ "ku", "sends cursor up" },
+#define	T_md	20
+	{ "md", "begin bold" },
+#define	T_me	21
+	{ "me", "end attributes" },
+#define	T_nd	22
+	{ "nd", "non destructive space" },
+#define	T_se	23
+	{ "se", "end standout" },
+#define	T_so	24
+	{ "so", "begin standout" },
+#define	T_ts	25
+	{ "ts", "cursor to status line" },
+#define	T_up	26
+	{ "up", "cursor up one" },
+#define	T_us	27
+	{ "us", "begin underline" },
+#define	T_ue	28
+	{ "ue", "end underline" },
+#define	T_vb	29
+	{ "vb", "visible bell" },
+#define	T_DC	30
+	{ "DC", "delete multiple chars" },
+#define	T_DO	31
+	{ "DO", "cursor down multiple" },
+#define	T_IC	32
+	{ "IC", "insert multiple chars" },
+#define	T_LE	33
+	{ "LE", "cursor left multiple" },
+#define	T_RI	34
+	{ "RI", "cursor right multiple" },
+#define	T_UP	35
+	{ "UP", "cursor up multiple" },
+#define	T_kh	36
+	{ "kh", "send cursor home" },
+#define	T_at7	37
+	{ "@7", "send cursor end" },
+#define	T_str	38
+	{ NULL, NULL }
+};
+
+private const struct termcapval {
+	const char *name;
+	const char *long_name;
+} tval[] = {
+#define	T_am	0
+	{ "am", "has automatic margins" },
+#define	T_pt	1
+	{ "pt", "has physical tabs" },
+#define	T_li	2
+	{ "li", "Number of lines" },
+#define	T_co	3
+	{ "co", "Number of columns" },
+#define	T_km	4
+	{ "km", "Has meta key" },
+#define	T_xt	5
+	{ "xt", "Tab chars destructive" },
+#define	T_xn	6
+	{ "xn", "newline ignored at right margin" },
+#define	T_MT	7
+	{ "MT", "Has meta key" },			/* XXX? */
+#define	T_val	8
+	{ NULL, NULL, }
+};
+/* do two or more of the attributes use me */
+
+private void	term_setflags(EditLine *);
+private int	term_rebuffer_display(EditLine *);
+private void	term_free_display(EditLine *);
+private int	term_alloc_display(EditLine *);
+private void	term_alloc(EditLine *, const struct termcapstr *, const char *);
+private void	term_init_arrow(EditLine *);
+private void	term_reset_arrow(EditLine *);
+
+
+private FILE *term_outfile = NULL;	/* XXX: How do we fix that? */
+
+
+/* term_setflags():
+ *	Set the terminal capability flags
+ */
+private void
+term_setflags(EditLine *el)
+{
+	EL_FLAGS = 0;
+	if (el->el_tty.t_tabs)
+		EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0;
+
+	EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0;
+	EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0;
+	EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0;
+	EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ?
+	    TERM_CAN_INSERT : 0;
+	EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0;
+	EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0;
+	EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0;
+
+	if (GoodStr(T_me) && GoodStr(T_ue))
+		EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ?
+		    TERM_CAN_ME : 0;
+	else
+		EL_FLAGS &= ~TERM_CAN_ME;
+	if (GoodStr(T_me) && GoodStr(T_se))
+		EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ?
+		    TERM_CAN_ME : 0;
+
+
+#ifdef DEBUG_SCREEN
+	if (!EL_CAN_UP) {
+		(void) fprintf(el->el_errfile,
+		    "WARNING: Your terminal cannot move up.\n");
+		(void) fprintf(el->el_errfile,
+		    "Editing may be odd for long lines.\n");
+	}
+	if (!EL_CAN_CEOL)
+		(void) fprintf(el->el_errfile, "no clear EOL capability.\n");
+	if (!EL_CAN_DELETE)
+		(void) fprintf(el->el_errfile, "no delete char capability.\n");
+	if (!EL_CAN_INSERT)
+		(void) fprintf(el->el_errfile, "no insert char capability.\n");
+#endif /* DEBUG_SCREEN */
+}
+
+
+/* term_init():
+ *	Initialize the terminal stuff
+ */
+protected int
+term_init(EditLine *el)
+{
+
+	el->el_term.t_buf = (char *) el_malloc(TC_BUFSIZE);
+	if (el->el_term.t_buf == NULL)
+		return (-1);
+	el->el_term.t_cap = (char *) el_malloc(TC_BUFSIZE);
+	if (el->el_term.t_cap == NULL)
+		return (-1);
+	el->el_term.t_fkey = (fkey_t *) el_malloc(A_K_NKEYS * sizeof(fkey_t));
+	if (el->el_term.t_fkey == NULL)
+		return (-1);
+	el->el_term.t_loc = 0;
+	el->el_term.t_str = (char **) el_malloc(T_str * sizeof(char *));
+	if (el->el_term.t_str == NULL)
+		return (-1);
+	(void) memset(el->el_term.t_str, 0, T_str * sizeof(char *));
+	el->el_term.t_val = (int *) el_malloc(T_val * sizeof(int));
+	if (el->el_term.t_val == NULL)
+		return (-1);
+	(void) memset(el->el_term.t_val, 0, T_val * sizeof(int));
+	term_outfile = el->el_outfile;
+	(void) term_set(el, NULL);
+	term_init_arrow(el);
+	return (0);
+}
+
+/* term_end():
+ *	Clean up the terminal stuff
+ */
+protected void
+term_end(EditLine *el)
+{
+
+	el_free((ptr_t) el->el_term.t_buf);
+	el->el_term.t_buf = NULL;
+	el_free((ptr_t) el->el_term.t_cap);
+	el->el_term.t_cap = NULL;
+	el->el_term.t_loc = 0;
+	el_free((ptr_t) el->el_term.t_str);
+	el->el_term.t_str = NULL;
+	el_free((ptr_t) el->el_term.t_val);
+	el->el_term.t_val = NULL;
+	el_free((ptr_t) el->el_term.t_fkey);
+	el->el_term.t_fkey = NULL;
+	term_free_display(el);
+}
+
+
+/* term_alloc():
+ *	Maintain a string pool for termcap strings
+ */
+private void
+term_alloc(EditLine *el, const struct termcapstr *t, const char *cap)
+{
+	char termbuf[TC_BUFSIZE];
+	int tlen, clen;
+	char **tlist = el->el_term.t_str;
+	char **tmp, **str = &tlist[t - tstr];
+
+	if (cap == NULL || *cap == '\0') {
+		*str = NULL;
+		return;
+	} else
+		clen = strlen(cap);
+
+	tlen = *str == NULL ? 0 : strlen(*str);
+
+	/*
+         * New string is shorter; no need to allocate space
+         */
+	if (clen <= tlen) {
+		if (*str)
+			(void) strcpy(*str, cap);	/* XXX strcpy is safe */
+		return;
+	}
+	/*
+         * New string is longer; see if we have enough space to append
+         */
+	if (el->el_term.t_loc + 3 < TC_BUFSIZE) {
+						/* XXX strcpy is safe */
+		(void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc],
+		    cap);
+		el->el_term.t_loc += clen + 1;	/* one for \0 */
+		return;
+	}
+	/*
+         * Compact our buffer; no need to check compaction, cause we know it
+         * fits...
+         */
+	tlen = 0;
+	for (tmp = tlist; tmp < &tlist[T_str]; tmp++)
+		if (*tmp != NULL && *tmp != '\0' && *tmp != *str) {
+			char *ptr;
+
+			for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++)
+				continue;
+			termbuf[tlen++] = '\0';
+		}
+	memcpy(el->el_term.t_buf, termbuf, TC_BUFSIZE);
+	el->el_term.t_loc = tlen;
+	if (el->el_term.t_loc + 3 >= TC_BUFSIZE) {
+		(void) fprintf(el->el_errfile,
+		    "Out of termcap string space.\n");
+		return;
+	}
+					/* XXX strcpy is safe */
+	(void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], cap);
+	el->el_term.t_loc += clen + 1;	/* one for \0 */
+	return;
+}
+
+
+/* term_rebuffer_display():
+ *	Rebuffer the display after the screen changed size
+ */
+private int
+term_rebuffer_display(EditLine *el)
+{
+	coord_t *c = &el->el_term.t_size;
+
+	term_free_display(el);
+
+	c->h = Val(T_co);
+	c->v = Val(T_li);
+
+	if (term_alloc_display(el) == -1)
+		return (-1);
+	return (0);
+}
+
+
+/* term_alloc_display():
+ *	Allocate a new display.
+ */
+private int
+term_alloc_display(EditLine *el)
+{
+	int i;
+	char **b;
+	coord_t *c = &el->el_term.t_size;
+
+	b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1)));
+	if (b == NULL)
+		return (-1);
+	for (i = 0; i < c->v; i++) {
+		b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1)));
+		if (b[i] == NULL) {
+			while (--i >= 0)
+				el_free((ptr_t) b[i]);
+			el_free((ptr_t) b);
+			return (-1);
+		}
+	}
+	b[c->v] = NULL;
+	el->el_display = b;
+
+	b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1)));
+	if (b == NULL)
+		return (-1);
+	for (i = 0; i < c->v; i++) {
+		b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1)));
+		if (b[i] == NULL) {
+			while (--i >= 0)
+				el_free((ptr_t) b[i]);
+			el_free((ptr_t) b);
+			return (-1);
+		}
+	}
+	b[c->v] = NULL;
+	el->el_vdisplay = b;
+	return (0);
+}
+
+
+/* term_free_display():
+ *	Free the display buffers
+ */
+private void
+term_free_display(EditLine *el)
+{
+	char **b;
+	char **bufp;
+
+	b = el->el_display;
+	el->el_display = NULL;
+	if (b != NULL) {
+		for (bufp = b; *bufp != NULL; bufp++)
+			el_free((ptr_t) * bufp);
+		el_free((ptr_t) b);
+	}
+	b = el->el_vdisplay;
+	el->el_vdisplay = NULL;
+	if (b != NULL) {
+		for (bufp = b; *bufp != NULL; bufp++)
+			el_free((ptr_t) * bufp);
+		el_free((ptr_t) b);
+	}
+}
+
+
+/* term_move_to_line():
+ *	move to line <where> (first line == 0)
+ * 	as efficiently as possible
+ */
+protected void
+term_move_to_line(EditLine *el, int where)
+{
+	int del;
+
+	if (where == el->el_cursor.v)
+		return;
+
+	if (where > el->el_term.t_size.v) {
+#ifdef DEBUG_SCREEN
+		(void) fprintf(el->el_errfile,
+		    "term_move_to_line: where is ridiculous: %d\r\n", where);
+#endif /* DEBUG_SCREEN */
+		return;
+	}
+	if ((del = where - el->el_cursor.v) > 0) {
+		while (del > 0) {
+			if (EL_HAS_AUTO_MARGINS &&
+			    el->el_display[el->el_cursor.v][0] != '\0') {
+				/* move without newline */
+				term_move_to_char(el, el->el_term.t_size.h - 1);
+				term_overwrite(el,
+				    &el->el_display[el->el_cursor.v][el->el_cursor.h],
+				    1);
+				/* updates Cursor */
+				del--;
+			} else {
+				if ((del > 1) && GoodStr(T_DO)) {
+					(void) tputs(tgoto(Str(T_DO), del, del),
+					    del, term__putc);
+					del = 0;
+				} else {
+					for (; del > 0; del--)
+						term__putc('\n');
+					/* because the \n will become \r\n */
+					el->el_cursor.h = 0;
+				}
+			}
+		}
+	} else {		/* del < 0 */
+		if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up)))
+			(void) tputs(tgoto(Str(T_UP), -del, -del), -del,
+			    term__putc);
+		else {
+			if (GoodStr(T_up))
+				for (; del < 0; del++)
+					(void) tputs(Str(T_up), 1, term__putc);
+		}
+	}
+	el->el_cursor.v = where;/* now where is here */
+}
+
+
+/* term_move_to_char():
+ *	Move to the character position specified
+ */
+protected void
+term_move_to_char(EditLine *el, int where)
+{
+	int del, i;
+
+mc_again:
+	if (where == el->el_cursor.h)
+		return;
+
+	if (where > el->el_term.t_size.h) {
+#ifdef DEBUG_SCREEN
+		(void) fprintf(el->el_errfile,
+		    "term_move_to_char: where is riduculous: %d\r\n", where);
+#endif /* DEBUG_SCREEN */
+		return;
+	}
+	if (!where) {		/* if where is first column */
+		term__putc('\r');	/* do a CR */
+		el->el_cursor.h = 0;
+		return;
+	}
+	del = where - el->el_cursor.h;
+
+	if ((del < -4 || del > 4) && GoodStr(T_ch))
+		/* go there directly */
+		(void) tputs(tgoto(Str(T_ch), where, where), where, term__putc);
+	else {
+		if (del > 0) {	/* moving forward */
+			if ((del > 4) && GoodStr(T_RI))
+				(void) tputs(tgoto(Str(T_RI), del, del),
+				    del, term__putc);
+			else {
+					/* if I can do tabs, use them */
+				if (EL_CAN_TAB) {
+					if ((el->el_cursor.h & 0370) !=
+					    (where & 0370)) {
+						/* if not within tab stop */
+						for (i =
+						    (el->el_cursor.h & 0370);
+						    i < (where & 0370);
+						    i += 8)
+							term__putc('\t');	
+							/* then tab over */
+						el->el_cursor.h = where & 0370;
+					}
+				}
+				/*
+				 * it's usually cheaper to just write the
+				 * chars, so we do.
+				 */
+				/*
+				 * NOTE THAT term_overwrite() WILL CHANGE
+				 * el->el_cursor.h!!!
+				 */
+				term_overwrite(el,
+				    &el->el_display[el->el_cursor.v][el->el_cursor.h],
+				    where - el->el_cursor.h);
+
+			}
+		} else {	/* del < 0 := moving backward */
+			if ((-del > 4) && GoodStr(T_LE))
+				(void) tputs(tgoto(Str(T_LE), -del, -del),
+				    -del, term__putc);
+			else {	/* can't go directly there */
+				/*
+				 * if the "cost" is greater than the "cost"
+				 * from col 0
+				 */
+				if (EL_CAN_TAB ?
+				    ((unsigned int)-del >
+				    (((unsigned int) where >> 3) +
+				     (where & 07)))
+				    : (-del > where)) {
+					term__putc('\r');	/* do a CR */
+					el->el_cursor.h = 0;
+					goto mc_again;	/* and try again */
+				}
+				for (i = 0; i < -del; i++)
+					term__putc('\b');
+			}
+		}
+	}
+	el->el_cursor.h = where;		/* now where is here */
+}
+
+
+/* term_overwrite():
+ *	Overstrike num characters
+ */
+protected void
+term_overwrite(EditLine *el, const char *cp, int n)
+{
+	if (n <= 0)
+		return;		/* catch bugs */
+
+	if (n > el->el_term.t_size.h) {
+#ifdef DEBUG_SCREEN
+		(void) fprintf(el->el_errfile,
+		    "term_overwrite: n is riduculous: %d\r\n", n);
+#endif /* DEBUG_SCREEN */
+		return;
+	}
+	do {
+		term__putc(*cp++);
+		el->el_cursor.h++;
+	} while (--n);
+
+	if (el->el_cursor.h >= el->el_term.t_size.h) {	/* wrap? */
+		if (EL_HAS_AUTO_MARGINS) {	/* yes */
+			el->el_cursor.h = 0;
+			el->el_cursor.v++;
+			if (EL_HAS_MAGIC_MARGINS) {
+				/* force the wrap to avoid the "magic"
+				 * situation */
+				char c;
+				if ((c = el->el_display[el->el_cursor.v][el->el_cursor.h])
+				    != '\0')
+					term_overwrite(el, &c, 1);
+				else
+					term__putc(' ');
+				el->el_cursor.h = 1;
+			}
+		} else		/* no wrap, but cursor stays on screen */
+			el->el_cursor.h = el->el_term.t_size.h;
+	}
+}
+
+
+/* term_deletechars():
+ *	Delete num characters
+ */
+protected void
+term_deletechars(EditLine *el, int num)
+{
+	if (num <= 0)
+		return;
+
+	if (!EL_CAN_DELETE) {
+#ifdef DEBUG_EDIT
+		(void) fprintf(el->el_errfile, "   ERROR: cannot delete   \n");
+#endif /* DEBUG_EDIT */
+		return;
+	}
+	if (num > el->el_term.t_size.h) {
+#ifdef DEBUG_SCREEN
+		(void) fprintf(el->el_errfile,
+		    "term_deletechars: num is riduculous: %d\r\n", num);
+#endif /* DEBUG_SCREEN */
+		return;
+	}
+	if (GoodStr(T_DC))	/* if I have multiple delete */
+		if ((num > 1) || !GoodStr(T_dc)) {	/* if dc would be more
+							 * expen. */
+			(void) tputs(tgoto(Str(T_DC), num, num),
+			    num, term__putc);
+			return;
+		}
+	if (GoodStr(T_dm))	/* if I have delete mode */
+		(void) tputs(Str(T_dm), 1, term__putc);
+
+	if (GoodStr(T_dc))	/* else do one at a time */
+		while (num--)
+			(void) tputs(Str(T_dc), 1, term__putc);
+
+	if (GoodStr(T_ed))	/* if I have delete mode */
+		(void) tputs(Str(T_ed), 1, term__putc);
+}
+
+
+/* term_insertwrite():
+ *	Puts terminal in insert character mode or inserts num
+ *	characters in the line
+ */
+protected void
+term_insertwrite(EditLine *el, char *cp, int num)
+{
+	if (num <= 0)
+		return;
+	if (!EL_CAN_INSERT) {
+#ifdef DEBUG_EDIT
+		(void) fprintf(el->el_errfile, "   ERROR: cannot insert   \n");
+#endif /* DEBUG_EDIT */
+		return;
+	}
+	if (num > el->el_term.t_size.h) {
+#ifdef DEBUG_SCREEN
+		(void) fprintf(el->el_errfile,
+		    "StartInsert: num is riduculous: %d\r\n", num);
+#endif /* DEBUG_SCREEN */
+		return;
+	}
+	if (GoodStr(T_IC))	/* if I have multiple insert */
+		if ((num > 1) || !GoodStr(T_ic)) {
+				/* if ic would be more expensive */
+			(void) tputs(tgoto(Str(T_IC), num, num),
+			    num, term__putc);
+			term_overwrite(el, cp, num);
+				/* this updates el_cursor.h */
+			return;
+		}
+	if (GoodStr(T_im) && GoodStr(T_ei)) {	/* if I have insert mode */
+		(void) tputs(Str(T_im), 1, term__putc);
+
+		el->el_cursor.h += num;
+		do
+			term__putc(*cp++);
+		while (--num);
+
+		if (GoodStr(T_ip))	/* have to make num chars insert */
+			(void) tputs(Str(T_ip), 1, term__putc);
+
+		(void) tputs(Str(T_ei), 1, term__putc);
+		return;
+	}
+	do {
+		if (GoodStr(T_ic))	/* have to make num chars insert */
+			(void) tputs(Str(T_ic), 1, term__putc);
+					/* insert a char */
+
+		term__putc(*cp++);
+
+		el->el_cursor.h++;
+
+		if (GoodStr(T_ip))	/* have to make num chars insert */
+			(void) tputs(Str(T_ip), 1, term__putc);
+					/* pad the inserted char */
+
+	} while (--num);
+}
+
+
+/* term_clear_EOL():
+ *	clear to end of line.  There are num characters to clear
+ */
+protected void
+term_clear_EOL(EditLine *el, int num)
+{
+	int i;
+
+	if (EL_CAN_CEOL && GoodStr(T_ce))
+		(void) tputs(Str(T_ce), 1, term__putc);
+	else {
+		for (i = 0; i < num; i++)
+			term__putc(' ');
+		el->el_cursor.h += num;	/* have written num spaces */
+	}
+}
+
+
+/* term_clear_screen():
+ *	Clear the screen
+ */
+protected void
+term_clear_screen(EditLine *el)
+{				/* clear the whole screen and home */
+
+	if (GoodStr(T_cl))
+		/* send the clear screen code */
+		(void) tputs(Str(T_cl), Val(T_li), term__putc);
+	else if (GoodStr(T_ho) && GoodStr(T_cd)) {
+		(void) tputs(Str(T_ho), Val(T_li), term__putc);	/* home */
+		/* clear to bottom of screen */
+		(void) tputs(Str(T_cd), Val(T_li), term__putc);
+	} else {
+		term__putc('\r');
+		term__putc('\n');
+	}
+}
+
+
+/* term_beep():
+ *	Beep the way the terminal wants us
+ */
+protected void
+term_beep(EditLine *el)
+{
+	if (GoodStr(T_bl))
+		/* what termcap says we should use */
+		(void) tputs(Str(T_bl), 1, term__putc);
+	else
+		term__putc('\007');	/* an ASCII bell; ^G */
+}
+
+
+#ifdef notdef
+/* term_clear_to_bottom():
+ *	Clear to the bottom of the screen
+ */
+protected void
+term_clear_to_bottom(EditLine *el)
+{
+	if (GoodStr(T_cd))
+		(void) tputs(Str(T_cd), Val(T_li), term__putc);
+	else if (GoodStr(T_ce))
+		(void) tputs(Str(T_ce), Val(T_li), term__putc);
+}
+#endif
+
+protected void
+term_get(EditLine *el, const char **term)
+{
+	*term = el->el_term.t_name;
+}
+
+
+/* term_set():
+ *	Read in the terminal capabilities from the requested terminal
+ */
+protected int
+term_set(EditLine *el, const char *term)
+{
+	int i;
+	char buf[TC_BUFSIZE];
+	char *area;
+	const struct termcapstr *t;
+	sigset_t oset, nset;
+	int lins, cols;
+
+	(void) sigemptyset(&nset);
+	(void) sigaddset(&nset, SIGWINCH);
+	(void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+	area = buf;
+
+
+	if (term == NULL)
+		term = getenv("TERM");
+
+	if (!term || !term[0])
+		term = "dumb";
+
+	if (strcmp(term, "emacs") == 0)
+		el->el_flags |= EDIT_DISABLED;
+
+	memset(el->el_term.t_cap, 0, TC_BUFSIZE);
+
+	i = tgetent(el->el_term.t_cap, term);
+
+	if (i <= 0) {
+		if (i == -1)
+			(void) fprintf(el->el_errfile,
+			    "Cannot read termcap database;\n");
+		else if (i == 0)
+			(void) fprintf(el->el_errfile,
+			    "No entry for terminal type \"%s\";\n", term);
+		(void) fprintf(el->el_errfile,
+		    "using dumb terminal settings.\n");
+		Val(T_co) = 80;	/* do a dumb terminal */
+		Val(T_pt) = Val(T_km) = Val(T_li) = 0;
+		Val(T_xt) = Val(T_MT);
+		for (t = tstr; t->name != NULL; t++)
+			term_alloc(el, t, NULL);
+	} else {
+		/* auto/magic margins */
+		Val(T_am) = tgetflag("am");
+		Val(T_xn) = tgetflag("xn");
+		/* Can we tab */
+		Val(T_pt) = tgetflag("pt");
+		Val(T_xt) = tgetflag("xt");
+		/* do we have a meta? */
+		Val(T_km) = tgetflag("km");
+		Val(T_MT) = tgetflag("MT");
+		/* Get the size */
+		Val(T_co) = tgetnum("co");
+		Val(T_li) = tgetnum("li");
+		for (t = tstr; t->name != NULL; t++) {
+			/* XXX: some systems' tgetstr needs non const */
+			term_alloc(el, t, tgetstr(strchr(t->name, *t->name),
+			    &area));
+		}
+	}
+
+	if (Val(T_co) < 2)
+		Val(T_co) = 80;	/* just in case */
+	if (Val(T_li) < 1)
+		Val(T_li) = 24;
+
+	el->el_term.t_size.v = Val(T_co);
+	el->el_term.t_size.h = Val(T_li);
+
+	term_setflags(el);
+
+				/* get the correct window size */
+	(void) term_get_size(el, &lins, &cols);
+	if (term_change_size(el, lins, cols) == -1)
+		return (-1);
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+	term_bind_arrow(el);
+	el->el_term.t_name = term;
+	return (i <= 0 ? -1 : 0);
+}
+
+
+/* term_get_size():
+ *	Return the new window size in lines and cols, and
+ *	true if the size was changed.
+ */
+protected int
+term_get_size(EditLine *el, int *lins, int *cols)
+{
+
+	*cols = Val(T_co);
+	*lins = Val(T_li);
+
+#ifdef TIOCGWINSZ
+	{
+		struct winsize ws;
+		if (ioctl(el->el_infd, TIOCGWINSZ, (ioctl_t) & ws) != -1) {
+			if (ws.ws_col)
+				*cols = ws.ws_col;
+			if (ws.ws_row)
+				*lins = ws.ws_row;
+		}
+	}
+#endif
+#ifdef TIOCGSIZE
+	{
+		struct ttysize ts;
+		if (ioctl(el->el_infd, TIOCGSIZE, (ioctl_t) & ts) != -1) {
+			if (ts.ts_cols)
+				*cols = ts.ts_cols;
+			if (ts.ts_lines)
+				*lins = ts.ts_lines;
+		}
+	}
+#endif
+	return (Val(T_co) != *cols || Val(T_li) != *lins);
+}
+
+
+/* term_change_size():
+ *	Change the size of the terminal
+ */
+protected int
+term_change_size(EditLine *el, int lins, int cols)
+{
+	/*
+         * Just in case
+         */
+	Val(T_co) = (cols < 2) ? 80 : cols;
+	Val(T_li) = (lins < 1) ? 24 : lins;
+
+	/* re-make display buffers */
+	if (term_rebuffer_display(el) == -1)
+		return (-1);
+	re_clear_display(el);
+	return (0);
+}
+
+
+/* term_init_arrow():
+ *	Initialize the arrow key bindings from termcap
+ */
+private void
+term_init_arrow(EditLine *el)
+{
+	fkey_t *arrow = el->el_term.t_fkey;
+
+	arrow[A_K_DN].name = "down";
+	arrow[A_K_DN].key = T_kd;
+	arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY;
+	arrow[A_K_DN].type = XK_CMD;
+
+	arrow[A_K_UP].name = "up";
+	arrow[A_K_UP].key = T_ku;
+	arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY;
+	arrow[A_K_UP].type = XK_CMD;
+
+	arrow[A_K_LT].name = "left";
+	arrow[A_K_LT].key = T_kl;
+	arrow[A_K_LT].fun.cmd = ED_PREV_CHAR;
+	arrow[A_K_LT].type = XK_CMD;
+
+	arrow[A_K_RT].name = "right";
+	arrow[A_K_RT].key = T_kr;
+	arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR;
+	arrow[A_K_RT].type = XK_CMD;
+
+	arrow[A_K_HO].name = "home";
+	arrow[A_K_HO].key = T_kh;
+	arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG;
+	arrow[A_K_HO].type = XK_CMD;
+
+	arrow[A_K_EN].name = "end";
+	arrow[A_K_EN].key = T_at7;
+	arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END;
+	arrow[A_K_EN].type = XK_CMD;
+}
+
+
+/* term_reset_arrow():
+ *	Reset arrow key bindings
+ */
+private void
+term_reset_arrow(EditLine *el)
+{
+	fkey_t *arrow = el->el_term.t_fkey;
+	static const char strA[] = {033, '[', 'A', '\0'};
+	static const char strB[] = {033, '[', 'B', '\0'};
+	static const char strC[] = {033, '[', 'C', '\0'};
+	static const char strD[] = {033, '[', 'D', '\0'};
+	static const char strH[] = {033, '[', 'H', '\0'};
+	static const char strF[] = {033, '[', 'F', '\0'};
+	static const char stOA[] = {033, 'O', 'A', '\0'};
+	static const char stOB[] = {033, 'O', 'B', '\0'};
+	static const char stOC[] = {033, 'O', 'C', '\0'};
+	static const char stOD[] = {033, 'O', 'D', '\0'};
+	static const char stOH[] = {033, 'O', 'H', '\0'};
+	static const char stOF[] = {033, 'O', 'F', '\0'};
+
+	key_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+	key_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+	key_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+	key_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+	key_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
+	key_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
+	key_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+	key_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+	key_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+	key_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+	key_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
+	key_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
+
+	if (el->el_map.type == MAP_VI) {
+		key_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+		key_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+		key_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+		key_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+		key_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type);
+		key_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type);
+		key_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+		key_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+		key_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+		key_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+		key_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type);
+		key_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type);
+	}
+}
+
+
+/* term_set_arrow():
+ *	Set an arrow key binding
+ */
+protected int
+term_set_arrow(EditLine *el, const char *name, key_value_t *fun, int type)
+{
+	fkey_t *arrow = el->el_term.t_fkey;
+	int i;
+
+	for (i = 0; i < A_K_NKEYS; i++)
+		if (strcmp(name, arrow[i].name) == 0) {
+			arrow[i].fun = *fun;
+			arrow[i].type = type;
+			return (0);
+		}
+	return (-1);
+}
+
+
+/* term_clear_arrow():
+ *	Clear an arrow key binding
+ */
+protected int
+term_clear_arrow(EditLine *el, const char *name)
+{
+	fkey_t *arrow = el->el_term.t_fkey;
+	int i;
+
+	for (i = 0; i < A_K_NKEYS; i++)
+		if (strcmp(name, arrow[i].name) == 0) {
+			arrow[i].type = XK_NOD;
+			return (0);
+		}
+	return (-1);
+}
+
+
+/* term_print_arrow():
+ *	Print the arrow key bindings
+ */
+protected void
+term_print_arrow(EditLine *el, const char *name)
+{
+	int i;
+	fkey_t *arrow = el->el_term.t_fkey;
+
+	for (i = 0; i < A_K_NKEYS; i++)
+		if (*name == '\0' || strcmp(name, arrow[i].name) == 0)
+			if (arrow[i].type != XK_NOD)
+				key_kprint(el, arrow[i].name, &arrow[i].fun,
+				    arrow[i].type);
+}
+
+
+/* term_bind_arrow():
+ *	Bind the arrow keys
+ */
+protected void
+term_bind_arrow(EditLine *el)
+{
+	el_action_t *map;
+	const el_action_t *dmap;
+	int i, j;
+	char *p;
+	fkey_t *arrow = el->el_term.t_fkey;
+
+	/* Check if the components needed are initialized */
+	if (el->el_term.t_buf == NULL || el->el_map.key == NULL)
+		return;
+
+	map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key;
+	dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs;
+
+	term_reset_arrow(el);
+
+	for (i = 0; i < A_K_NKEYS; i++) {
+		p = el->el_term.t_str[arrow[i].key];
+		if (p && *p) {
+			j = (unsigned char) *p;
+			/*
+		         * Assign the arrow keys only if:
+		         *
+		         * 1. They are multi-character arrow keys and the user
+		         *    has not re-assigned the leading character, or
+		         *    has re-assigned the leading character to be
+		         *	  ED_SEQUENCE_LEAD_IN
+		         * 2. They are single arrow keys pointing to an
+			 *    unassigned key.
+		         */
+			if (arrow[i].type == XK_NOD)
+				key_clear(el, map, p);
+			else {
+				if (p[1] && (dmap[j] == map[j] ||
+					map[j] == ED_SEQUENCE_LEAD_IN)) {
+					key_add(el, p, &arrow[i].fun,
+					    arrow[i].type);
+					map[j] = ED_SEQUENCE_LEAD_IN;
+				} else if (map[j] == ED_UNASSIGNED) {
+					key_clear(el, map, p);
+					if (arrow[i].type == XK_CMD)
+						map[j] = arrow[i].fun.cmd;
+					else
+						key_add(el, p, &arrow[i].fun,
+						    arrow[i].type);
+				}
+			}
+		}
+	}
+}
+
+
+/* term__putc():
+ *	Add a character
+ */
+protected int
+term__putc(int c)
+{
+
+	return (fputc(c, term_outfile));
+}
+
+
+/* term__flush():
+ *	Flush output
+ */
+protected void
+term__flush(void)
+{
+
+	(void) fflush(term_outfile);
+}
+
+/* term_writec():
+ *	Write the given character out, in a human readable form
+ */
+protected void
+term_writec(EditLine *el, int c)
+{
+	char buf[8];
+	int cnt = key__decode_char(buf, sizeof(buf), 0, c);
+	buf[cnt] = '\0';
+	term_overwrite(el, buf, cnt);
+	term__flush();
+}
+
+
+/* term_telltc():
+ *	Print the current termcap characteristics
+ */
+protected int
+/*ARGSUSED*/
+term_telltc(EditLine *el, int argc __attribute__((__unused__)), 
+    const char **argv __attribute__((__unused__)))
+{
+	const struct termcapstr *t;
+	char **ts;
+	char upbuf[EL_BUFSIZ];
+
+	(void) fprintf(el->el_outfile, "\n\tYour terminal has the\n");
+	(void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n");
+	(void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n",
+	    Val(T_co), Val(T_li));
+	(void) fprintf(el->el_outfile,
+	    "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no");
+	(void) fprintf(el->el_outfile,
+	    "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not ");
+	(void) fprintf(el->el_outfile, "\tIt %s automatic margins\n",
+	    EL_HAS_AUTO_MARGINS ? "has" : "does not have");
+	if (EL_HAS_AUTO_MARGINS)
+		(void) fprintf(el->el_outfile, "\tIt %s magic margins\n",
+		    EL_HAS_MAGIC_MARGINS ? "has" : "does not have");
+
+	for (t = tstr, ts = el->el_term.t_str; t->name != NULL; t++, ts++) {
+		const char *ub;
+		if (*ts && **ts) {
+		    (void) key__decode_str(*ts, upbuf, sizeof(upbuf), "");
+		    ub = upbuf;
+		} else {
+		    ub = "(empty)";
+		}
+		(void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n",
+		    t->long_name, t->name, ub);
+	}
+	(void) fputc('\n', el->el_outfile);
+	return (0);
+}
+
+
+/* term_settc():
+ *	Change the current terminal characteristics
+ */
+protected int
+/*ARGSUSED*/
+term_settc(EditLine *el, int argc __attribute__((__unused__)),
+    const char **argv)
+{
+	const struct termcapstr *ts;
+	const struct termcapval *tv;
+	const char *what, *how;
+
+	if (argv == NULL || argv[1] == NULL || argv[2] == NULL)
+		return (-1);
+
+	what = argv[1];
+	how = argv[2];
+
+	/*
+         * Do the strings first
+         */
+	for (ts = tstr; ts->name != NULL; ts++)
+		if (strcmp(ts->name, what) == 0)
+			break;
+
+	if (ts->name != NULL) {
+		term_alloc(el, ts, how);
+		term_setflags(el);
+		return (0);
+	}
+	/*
+         * Do the numeric ones second
+         */
+	for (tv = tval; tv->name != NULL; tv++)
+		if (strcmp(tv->name, what) == 0)
+			break;
+
+	if (tv->name != NULL) {
+		if (tv == &tval[T_pt] || tv == &tval[T_km] ||
+		    tv == &tval[T_am] || tv == &tval[T_xn]) {
+			if (strcmp(how, "yes") == 0)
+				el->el_term.t_val[tv - tval] = 1;
+			else if (strcmp(how, "no") == 0)
+				el->el_term.t_val[tv - tval] = 0;
+			else {
+				(void) fprintf(el->el_errfile,
+				    "settc: Bad value `%s'.\n", how);
+				return (-1);
+			}
+			term_setflags(el);
+			if (term_change_size(el, Val(T_li), Val(T_co)) == -1)
+				return (-1);
+			return (0);
+		} else {
+			long i;
+			char *ep;
+
+			i = strtol(how, &ep, 10);
+			if (*ep != '\0') {
+				(void) fprintf(el->el_errfile,
+				    "settc: Bad value `%s'.\n", how);
+				return (-1);
+			}
+			el->el_term.t_val[tv - tval] = (int) i;
+			el->el_term.t_size.v = Val(T_co);
+			el->el_term.t_size.h = Val(T_li);
+			if (tv == &tval[T_co] || tv == &tval[T_li])
+				if (term_change_size(el, Val(T_li), Val(T_co))
+				    == -1)
+					return (-1);
+			return (0);
+		}
+	}
+	return (-1);
+}
+
+
+/* term_echotc():
+ *	Print the termcap string out with variable substitution
+ */
+protected int
+/*ARGSUSED*/
+term_echotc(EditLine *el, int argc __attribute__((__unused__)),
+    const char **argv)
+{
+	char *cap, *scap, *ep;
+	int arg_need, arg_cols, arg_rows;
+	int verbose = 0, silent = 0;
+	char *area;
+	static const char fmts[] = "%s\n", fmtd[] = "%d\n";
+	const struct termcapstr *t;
+	char buf[TC_BUFSIZE];
+	long i;
+
+	area = buf;
+
+	if (argv == NULL || argv[1] == NULL)
+		return (-1);
+	argv++;
+
+	if (argv[0][0] == '-') {
+		switch (argv[0][1]) {
+		case 'v':
+			verbose = 1;
+			break;
+		case 's':
+			silent = 1;
+			break;
+		default:
+			/* stderror(ERR_NAME | ERR_TCUSAGE); */
+			break;
+		}
+		argv++;
+	}
+	if (!*argv || *argv[0] == '\0')
+		return (0);
+	if (strcmp(*argv, "tabs") == 0) {
+		(void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no");
+		return (0);
+	} else if (strcmp(*argv, "meta") == 0) {
+		(void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no");
+		return (0);
+	} else if (strcmp(*argv, "xn") == 0) {
+		(void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ?
+		    "yes" : "no");
+		return (0);
+	} else if (strcmp(*argv, "am") == 0) {
+		(void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ?
+		    "yes" : "no");
+		return (0);
+	} else if (strcmp(*argv, "baud") == 0) {
+#ifdef notdef
+		int i;
+
+		for (i = 0; baud_rate[i].b_name != NULL; i++)
+			if (el->el_tty.t_speed == baud_rate[i].b_rate) {
+				(void) fprintf(el->el_outfile, fmts,
+				    baud_rate[i].b_name);
+				return (0);
+			}
+		(void) fprintf(el->el_outfile, fmtd, 0);
+#else
+		(void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed);
+#endif
+		return (0);
+	} else if (strcmp(*argv, "rows") == 0 || strcmp(*argv, "lines") == 0) {
+		(void) fprintf(el->el_outfile, fmtd, Val(T_li));
+		return (0);
+	} else if (strcmp(*argv, "cols") == 0) {
+		(void) fprintf(el->el_outfile, fmtd, Val(T_co));
+		return (0);
+	}
+	/*
+         * Try to use our local definition first
+         */
+	scap = NULL;
+	for (t = tstr; t->name != NULL; t++)
+		if (strcmp(t->name, *argv) == 0) {
+			scap = el->el_term.t_str[t - tstr];
+			break;
+		}
+	if (t->name == NULL) {
+		/* XXX: some systems' tgetstr needs non const */
+		scap = tgetstr(strchr(*argv, **argv), &area);
+	}
+	if (!scap || scap[0] == '\0') {
+		if (!silent)
+			(void) fprintf(el->el_errfile,
+			    "echotc: Termcap parameter `%s' not found.\n",
+			    *argv);
+		return (-1);
+	}
+	/*
+         * Count home many values we need for this capability.
+         */
+	for (cap = scap, arg_need = 0; *cap; cap++)
+		if (*cap == '%')
+			switch (*++cap) {
+			case 'd':
+			case '2':
+			case '3':
+			case '.':
+			case '+':
+				arg_need++;
+				break;
+			case '%':
+			case '>':
+			case 'i':
+			case 'r':
+			case 'n':
+			case 'B':
+			case 'D':
+				break;
+			default:
+				/*
+				 * hpux has lot's of them...
+				 */
+				if (verbose)
+					(void) fprintf(el->el_errfile,
+				"echotc: Warning: unknown termcap %% `%c'.\n",
+					    *cap);
+				/* This is bad, but I won't complain */
+				break;
+			}
+
+	switch (arg_need) {
+	case 0:
+		argv++;
+		if (*argv && *argv[0]) {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Warning: Extra argument `%s'.\n",
+				    *argv);
+			return (-1);
+		}
+		(void) tputs(scap, 1, term__putc);
+		break;
+	case 1:
+		argv++;
+		if (!*argv || *argv[0] == '\0') {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Warning: Missing argument.\n");
+			return (-1);
+		}
+		arg_cols = 0;
+		i = strtol(*argv, &ep, 10);
+		if (*ep != '\0' || i < 0) {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Bad value `%s' for rows.\n",
+				    *argv);
+			return (-1);
+		}
+		arg_rows = (int) i;
+		argv++;
+		if (*argv && *argv[0]) {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Warning: Extra argument `%s'.\n",
+				    *argv);
+			return (-1);
+		}
+		(void) tputs(tgoto(scap, arg_cols, arg_rows), 1, term__putc);
+		break;
+	default:
+		/* This is wrong, but I will ignore it... */
+		if (verbose)
+			(void) fprintf(el->el_errfile,
+			 "echotc: Warning: Too many required arguments (%d).\n",
+			    arg_need);
+		/* FALLTHROUGH */
+	case 2:
+		argv++;
+		if (!*argv || *argv[0] == '\0') {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Warning: Missing argument.\n");
+			return (-1);
+		}
+		i = strtol(*argv, &ep, 10);
+		if (*ep != '\0' || i < 0) {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Bad value `%s' for cols.\n",
+				    *argv);
+			return (-1);
+		}
+		arg_cols = (int) i;
+		argv++;
+		if (!*argv || *argv[0] == '\0') {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Warning: Missing argument.\n");
+			return (-1);
+		}
+		i = strtol(*argv, &ep, 10);
+		if (*ep != '\0' || i < 0) {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Bad value `%s' for rows.\n",
+				    *argv);
+			return (-1);
+		}
+		arg_rows = (int) i;
+		if (*ep != '\0') {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Bad value `%s'.\n", *argv);
+			return (-1);
+		}
+		argv++;
+		if (*argv && *argv[0]) {
+			if (!silent)
+				(void) fprintf(el->el_errfile,
+				    "echotc: Warning: Extra argument `%s'.\n",
+				    *argv);
+			return (-1);
+		}
+		(void) tputs(tgoto(scap, arg_cols, arg_rows), arg_rows,
+		    term__putc);
+		break;
+	}
+	return (0);
+}
diff --git a/frontend/libedit/term.h b/frontend/libedit/term.h
new file mode 100644
index 0000000..24b1ef8
--- /dev/null
+++ b/frontend/libedit/term.h
@@ -0,0 +1,122 @@
+/*	$NetBSD: term.h,v 1.15 2003/09/14 21:48:55 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)term.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.term.h: Termcap header
+ */
+#ifndef _h_el_term
+#define	_h_el_term
+
+#include "histedit.h"
+
+typedef struct {		/* Symbolic function key bindings	*/
+	const char	*name;	/* name of the key			*/
+	int		 key;	/* Index in termcap table		*/
+	key_value_t	 fun;	/* Function bound to it			*/
+	int		 type;	/* Type of function			*/
+} fkey_t;
+
+typedef struct {
+	const char *t_name;		/* the terminal name	*/
+	coord_t	  t_size;		/* # lines and cols	*/
+	int	  t_flags;
+#define	TERM_CAN_INSERT		0x001	/* Has insert cap	*/
+#define	TERM_CAN_DELETE		0x002	/* Has delete cap	*/
+#define	TERM_CAN_CEOL		0x004	/* Has CEOL cap		*/
+#define	TERM_CAN_TAB		0x008	/* Can use tabs		*/
+#define	TERM_CAN_ME		0x010	/* Can turn all attrs.	*/
+#define	TERM_CAN_UP		0x020	/* Can move up		*/
+#define	TERM_HAS_META		0x040	/* Has a meta key	*/
+#define	TERM_HAS_AUTO_MARGINS	0x080	/* Has auto margins	*/
+#define	TERM_HAS_MAGIC_MARGINS	0x100	/* Has magic margins	*/
+	char	 *t_buf;		/* Termcap buffer	*/
+	int	  t_loc;		/* location used	*/
+	char	**t_str;		/* termcap strings	*/
+	int	 *t_val;		/* termcap values	*/
+	char	 *t_cap;		/* Termcap buffer	*/
+	fkey_t	 *t_fkey;		/* Array of keys	*/
+} el_term_t;
+
+/*
+ * fKey indexes
+ */
+#define	A_K_DN		0
+#define	A_K_UP		1
+#define	A_K_LT		2
+#define	A_K_RT		3
+#define	A_K_HO		4
+#define	A_K_EN		5
+#define	A_K_NKEYS	6
+
+protected void	term_move_to_line(EditLine *, int);
+protected void	term_move_to_char(EditLine *, int);
+protected void	term_clear_EOL(EditLine *, int);
+protected void	term_overwrite(EditLine *, const char *, int);
+protected void	term_insertwrite(EditLine *, char *, int);
+protected void	term_deletechars(EditLine *, int);
+protected void	term_clear_screen(EditLine *);
+protected void	term_beep(EditLine *);
+protected int	term_change_size(EditLine *, int, int);
+protected int	term_get_size(EditLine *, int *, int *);
+protected int	term_init(EditLine *);
+protected void	term_bind_arrow(EditLine *);
+protected void	term_print_arrow(EditLine *, const char *);
+protected int	term_clear_arrow(EditLine *, const char *);
+protected int	term_set_arrow(EditLine *, const char *, key_value_t *, int);
+protected void	term_end(EditLine *);
+protected void	term_get(EditLine *, const char **);
+protected int	term_set(EditLine *, const char *);
+protected int	term_settc(EditLine *, int, const char **);
+protected int	term_telltc(EditLine *, int, const char **);
+protected int	term_echotc(EditLine *, int, const char **);
+protected int	term__putc(int);
+protected void	term__flush(void);
+
+/*
+ * Easy access macros
+ */
+#define	EL_FLAGS	(el)->el_term.t_flags
+
+#define	EL_CAN_INSERT		(EL_FLAGS & TERM_CAN_INSERT)
+#define	EL_CAN_DELETE		(EL_FLAGS & TERM_CAN_DELETE)
+#define	EL_CAN_CEOL		(EL_FLAGS & TERM_CAN_CEOL)
+#define	EL_CAN_TAB		(EL_FLAGS & TERM_CAN_TAB)
+#define	EL_CAN_ME		(EL_FLAGS & TERM_CAN_ME)
+#define	EL_HAS_META		(EL_FLAGS & TERM_HAS_META)
+#define	EL_HAS_AUTO_MARGINS	(EL_FLAGS & TERM_HAS_AUTO_MARGINS)
+#define	EL_HAS_MAGIC_MARGINS	(EL_FLAGS & TERM_HAS_MAGIC_MARGINS)
+
+#endif /* _h_el_term */
diff --git a/frontend/libedit/tokenizer.c b/frontend/libedit/tokenizer.c
new file mode 100644
index 0000000..177633b
--- /dev/null
+++ b/frontend/libedit/tokenizer.c
@@ -0,0 +1,441 @@
+/*	$NetBSD: tokenizer.c,v 1.14 2003/12/05 13:37:48 lukem Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * tokenize.c: Bourne shell like tokenizer
+ */
+#include <string.h>
+#include <stdlib.h>
+#include "histedit.h"
+
+typedef enum {
+	Q_none, Q_single, Q_double, Q_one, Q_doubleone
+} quote_t;
+
+#define	IFS		"\t \n"
+
+#define	TOK_KEEP	1
+#define	TOK_EAT		2
+
+#define	WINCR		20
+#define	AINCR		10
+
+#define	tok_strdup(a)		strdup(a)
+#define	tok_malloc(a)		malloc(a)
+#define	tok_free(a)		free(a)
+#define	tok_realloc(a, b)	realloc(a, b)
+
+
+struct tokenizer {
+	char	*ifs;		/* In field separator			 */
+	int	 argc, amax;	/* Current and maximum number of args	 */
+	char   **argv;		/* Argument list			 */
+	char	*wptr, *wmax;	/* Space and limit on the word buffer	 */
+	char	*wstart;	/* Beginning of next word		 */
+	char	*wspace;	/* Space of word buffer			 */
+	quote_t	 quote;		/* Quoting state			 */
+	int	 flags;		/* flags;				 */
+};
+
+
+private void tok_finish(Tokenizer *);
+
+
+/* tok_finish():
+ *	Finish a word in the tokenizer.
+ */
+private void
+tok_finish(Tokenizer *tok)
+{
+
+	*tok->wptr = '\0';
+	if ((tok->flags & TOK_KEEP) || tok->wptr != tok->wstart) {
+		tok->argv[tok->argc++] = tok->wstart;
+		tok->argv[tok->argc] = NULL;
+		tok->wstart = ++tok->wptr;
+	}
+	tok->flags &= ~TOK_KEEP;
+}
+
+
+/* tok_init():
+ *	Initialize the tokenizer
+ */
+public Tokenizer *
+tok_init(const char *ifs)
+{
+	Tokenizer *tok = (Tokenizer *) tok_malloc(sizeof(Tokenizer));
+
+	if (tok == NULL)
+		return NULL;
+	tok->ifs = tok_strdup(ifs ? ifs : IFS);
+	if (tok->ifs == NULL) {
+		tok_free((ptr_t)tok);
+		return NULL;
+	}
+	tok->argc = 0;
+	tok->amax = AINCR;
+	tok->argv = (char **) tok_malloc(sizeof(char *) * tok->amax);
+	if (tok->argv == NULL) {
+		tok_free((ptr_t)tok->ifs);
+		tok_free((ptr_t)tok);
+		return NULL;
+	}
+	tok->argv[0] = NULL;
+	tok->wspace = (char *) tok_malloc(WINCR);
+	if (tok->wspace == NULL) {
+		tok_free((ptr_t)tok->argv);
+		tok_free((ptr_t)tok->ifs);
+		tok_free((ptr_t)tok);
+		return NULL;
+	}
+	tok->wmax = tok->wspace + WINCR;
+	tok->wstart = tok->wspace;
+	tok->wptr = tok->wspace;
+	tok->flags = 0;
+	tok->quote = Q_none;
+
+	return (tok);
+}
+
+
+/* tok_reset():
+ *	Reset the tokenizer
+ */
+public void
+tok_reset(Tokenizer *tok)
+{
+
+	tok->argc = 0;
+	tok->wstart = tok->wspace;
+	tok->wptr = tok->wspace;
+	tok->flags = 0;
+	tok->quote = Q_none;
+}
+
+
+/* tok_end():
+ *	Clean up
+ */
+public void
+tok_end(Tokenizer *tok)
+{
+
+	tok_free((ptr_t) tok->ifs);
+	tok_free((ptr_t) tok->wspace);
+	tok_free((ptr_t) tok->argv);
+	tok_free((ptr_t) tok);
+}
+
+
+
+/* tok_line():
+ *	Bourne shell (sh(1)) like tokenizing
+ *	Arguments:
+ *		tok	current tokenizer state (setup with tok_init())
+ *		line	line to parse
+ *	Returns:
+ *		-1	Internal error
+ *		 3	Quoted return
+ *		 2	Unmatched double quote
+ *		 1	Unmatched single quote
+ *		 0	Ok
+ *	Modifies (if return value is 0):
+ *		argc	number of arguments
+ *		argv	argument array
+ *		cursorc	if !NULL, argv element containing cursor
+ *		cursorv	if !NULL, offset in argv[cursorc] of cursor
+ */
+public int
+tok_line(Tokenizer *tok, const LineInfo *line,
+    int *argc, const char ***argv, int *cursorc, int *cursoro)
+{
+	const char *ptr;
+	int cc, co;
+
+	cc = co = -1;
+	ptr = line->buffer;
+	for (ptr = line->buffer; ;ptr++) {
+		if (ptr >= line->lastchar)
+			ptr = "";
+		if (ptr == line->cursor) {
+			cc = tok->argc;
+			co = tok->wptr - tok->wstart;
+		}
+		switch (*ptr) {
+		case '\'':
+			tok->flags |= TOK_KEEP;
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:
+				tok->quote = Q_single;	/* Enter single quote
+							 * mode */
+				break;
+
+			case Q_single:	/* Exit single quote mode */
+				tok->quote = Q_none;
+				break;
+
+			case Q_one:	/* Quote this ' */
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_double:	/* Stay in double quote mode */
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_doubleone:	/* Quote this ' */
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return (-1);
+			}
+			break;
+
+		case '"':
+			tok->flags &= ~TOK_EAT;
+			tok->flags |= TOK_KEEP;
+			switch (tok->quote) {
+			case Q_none:	/* Enter double quote mode */
+				tok->quote = Q_double;
+				break;
+
+			case Q_double:	/* Exit double quote mode */
+				tok->quote = Q_none;
+				break;
+
+			case Q_one:	/* Quote this " */
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_single:	/* Stay in single quote mode */
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_doubleone:	/* Quote this " */
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return (-1);
+			}
+			break;
+
+		case '\\':
+			tok->flags |= TOK_KEEP;
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:	/* Quote next character */
+				tok->quote = Q_one;
+				break;
+
+			case Q_double:	/* Quote next character */
+				tok->quote = Q_doubleone;
+				break;
+
+			case Q_one:	/* Quote this, restore state */
+				*tok->wptr++ = *ptr;
+				tok->quote = Q_none;
+				break;
+
+			case Q_single:	/* Stay in single quote mode */
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_doubleone:	/* Quote this \ */
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return (-1);
+			}
+			break;
+
+		case '\n':
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:
+				goto tok_line_outok;
+
+			case Q_single:
+			case Q_double:
+				*tok->wptr++ = *ptr;	/* Add the return */
+				break;
+
+			case Q_doubleone:   /* Back to double, eat the '\n' */
+				tok->flags |= TOK_EAT;
+				tok->quote = Q_double;
+				break;
+
+			case Q_one:	/* No quote, more eat the '\n' */
+				tok->flags |= TOK_EAT;
+				tok->quote = Q_none;
+				break;
+
+			default:
+				return (0);
+			}
+			break;
+
+		case '\0':
+			switch (tok->quote) {
+			case Q_none:
+				/* Finish word and return */
+				if (tok->flags & TOK_EAT) {
+					tok->flags &= ~TOK_EAT;
+					return (3);
+				}
+				goto tok_line_outok;
+
+			case Q_single:
+				return (1);
+
+			case Q_double:
+				return (2);
+
+			case Q_doubleone:
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_one:
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return (-1);
+			}
+			break;
+
+		default:
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:
+				if (strchr(tok->ifs, *ptr) != NULL)
+					tok_finish(tok);
+				else
+					*tok->wptr++ = *ptr;
+				break;
+
+			case Q_single:
+			case Q_double:
+				*tok->wptr++ = *ptr;
+				break;
+
+
+			case Q_doubleone:
+				*tok->wptr++ = '\\';
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_one:
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return (-1);
+
+			}
+			break;
+		}
+
+		if (tok->wptr >= tok->wmax - 4) {
+			size_t size = tok->wmax - tok->wspace + WINCR;
+			char *s = (char *) tok_realloc(tok->wspace, size);
+			if (s == NULL)
+				return (-1);
+
+			if (s != tok->wspace) {
+				int i;
+				for (i = 0; i < tok->argc; i++) {
+				    tok->argv[i] =
+					(tok->argv[i] - tok->wspace) + s;
+				}
+				tok->wptr = (tok->wptr - tok->wspace) + s;
+				tok->wstart = (tok->wstart - tok->wspace) + s;
+				tok->wspace = s;
+			}
+			tok->wmax = s + size;
+		}
+		if (tok->argc >= tok->amax - 4) {
+			char **p;
+			tok->amax += AINCR;
+			p = (char **) tok_realloc(tok->argv,
+			    tok->amax * sizeof(char *));
+			if (p == NULL)
+				return (-1);
+			tok->argv = p;
+		}
+	}
+ tok_line_outok:
+	if (cc == -1 && co == -1) {
+		cc = tok->argc;
+		co = tok->wptr - tok->wstart;
+	}
+	if (cursorc != NULL)
+		*cursorc = cc;
+	if (cursoro != NULL)
+		*cursoro = co;
+	tok_finish(tok);
+	*argv = (const char **)tok->argv;
+	*argc = tok->argc;
+	return (0);
+}
+
+/* tok_str():
+ *	Simpler version of tok_line, taking a NUL terminated line
+ *	and splitting into words, ignoring cursor state.
+ */
+public int
+tok_str(Tokenizer *tok, const char *line, int *argc, const char ***argv)
+{
+	LineInfo li;
+
+	memset(&li, 0, sizeof(li));
+	li.buffer = line;
+	li.cursor = li.lastchar = strchr(line, '\0');
+	return (tok_line(tok, &li, argc, argv, NULL, NULL));
+}
diff --git a/frontend/libedit/tty.c b/frontend/libedit/tty.c
new file mode 100644
index 0000000..8120da0
--- /dev/null
+++ b/frontend/libedit/tty.c
@@ -0,0 +1,1306 @@
+/*	$NetBSD: tty.c,v 1.25 2006/03/18 09:09:41 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+
+/*
+ * tty.c: tty interface stuff
+ */
+#include <assert.h>
+#include "tty.h"
+#include "el.h"
+
+typedef struct ttymodes_t {
+	const char *m_name;
+	unsigned int m_value;
+	int m_type;
+}          ttymodes_t;
+
+typedef struct ttymap_t {
+	int nch, och;		/* Internal and termio rep of chars */
+	el_action_t bind[3];	/* emacs, vi, and vi-cmd */
+} ttymap_t;
+
+
+private const ttyperm_t ttyperm = {
+	{
+		{"iflag:", ICRNL, (INLCR | IGNCR)},
+		{"oflag:", (OPOST | ONLCR), ONLRET},
+		{"cflag:", 0, 0},
+		{"lflag:", (ISIG | ICANON | ECHO | ECHOE | ECHOCTL | IEXTEN),
+		(NOFLSH | ECHONL | EXTPROC | FLUSHO)},
+		{"chars:", 0, 0},
+	},
+	{
+		{"iflag:", (INLCR | ICRNL), IGNCR},
+		{"oflag:", (OPOST | ONLCR), ONLRET},
+		{"cflag:", 0, 0},
+		{"lflag:", ISIG,
+		(NOFLSH | ICANON | ECHO | ECHOK | ECHONL | EXTPROC | IEXTEN | FLUSHO)},
+		{"chars:", (C_SH(C_MIN) | C_SH(C_TIME) | C_SH(C_SWTCH) | C_SH(C_DSWTCH) |
+			    C_SH(C_SUSP) | C_SH(C_DSUSP) | C_SH(C_EOL) | C_SH(C_DISCARD) |
+		    C_SH(C_PGOFF) | C_SH(C_PAGE) | C_SH(C_STATUS)), 0}
+	},
+	{
+		{"iflag:", 0, IXON | IXOFF | INLCR | ICRNL},
+		{"oflag:", 0, 0},
+		{"cflag:", 0, 0},
+		{"lflag:", 0, ISIG | IEXTEN},
+		{"chars:", 0, 0},
+	}
+};
+
+private const ttychar_t ttychar = {
+	{
+		CINTR, CQUIT, CERASE, CKILL,
+		CEOF, CEOL, CEOL2, CSWTCH,
+		CDSWTCH, CERASE2, CSTART, CSTOP,
+		CWERASE, CSUSP, CDSUSP, CREPRINT,
+		CDISCARD, CLNEXT, CSTATUS, CPAGE,
+		CPGOFF, CKILL2, CBRK, CMIN,
+		CTIME
+	},
+	{
+		CINTR, CQUIT, CERASE, CKILL,
+		_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
+		_POSIX_VDISABLE, CERASE2, CSTART, CSTOP,
+		_POSIX_VDISABLE, CSUSP, _POSIX_VDISABLE, _POSIX_VDISABLE,
+		CDISCARD, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
+		_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, 1,
+		0
+	},
+	{
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0
+	}
+};
+
+private const ttymap_t tty_map[] = {
+#ifdef VERASE
+	{C_ERASE, VERASE,
+	{ED_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR}},
+#endif /* VERASE */
+#ifdef VERASE2
+	{C_ERASE2, VERASE2,
+	{ED_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR}},
+#endif /* VERASE2 */
+#ifdef VKILL
+	{C_KILL, VKILL,
+	{EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED}},
+#endif /* VKILL */
+#ifdef VKILL2
+	{C_KILL2, VKILL2,
+	{EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED}},
+#endif /* VKILL2 */
+#ifdef VEOF
+	{C_EOF, VEOF,
+	{EM_DELETE_OR_LIST, VI_LIST_OR_EOF, ED_UNASSIGNED}},
+#endif /* VEOF */
+#ifdef VWERASE
+	{C_WERASE, VWERASE,
+	{ED_DELETE_PREV_WORD, ED_DELETE_PREV_WORD, ED_PREV_WORD}},
+#endif /* VWERASE */
+#ifdef VREPRINT
+	{C_REPRINT, VREPRINT,
+	{ED_REDISPLAY, ED_INSERT, ED_REDISPLAY}},
+#endif /* VREPRINT */
+#ifdef VLNEXT
+	{C_LNEXT, VLNEXT,
+	{ED_QUOTED_INSERT, ED_QUOTED_INSERT, ED_UNASSIGNED}},
+#endif /* VLNEXT */
+	{-1, -1,
+	{ED_UNASSIGNED, ED_UNASSIGNED, ED_UNASSIGNED}}
+};
+
+private const ttymodes_t ttymodes[] = {
+#ifdef	IGNBRK
+	{"ignbrk", IGNBRK, MD_INP},
+#endif /* IGNBRK */
+#ifdef	BRKINT
+	{"brkint", BRKINT, MD_INP},
+#endif /* BRKINT */
+#ifdef	IGNPAR
+	{"ignpar", IGNPAR, MD_INP},
+#endif /* IGNPAR */
+#ifdef	PARMRK
+	{"parmrk", PARMRK, MD_INP},
+#endif /* PARMRK */
+#ifdef	INPCK
+	{"inpck", INPCK, MD_INP},
+#endif /* INPCK */
+#ifdef	ISTRIP
+	{"istrip", ISTRIP, MD_INP},
+#endif /* ISTRIP */
+#ifdef	INLCR
+	{"inlcr", INLCR, MD_INP},
+#endif /* INLCR */
+#ifdef	IGNCR
+	{"igncr", IGNCR, MD_INP},
+#endif /* IGNCR */
+#ifdef	ICRNL
+	{"icrnl", ICRNL, MD_INP},
+#endif /* ICRNL */
+#ifdef	IUCLC
+	{"iuclc", IUCLC, MD_INP},
+#endif /* IUCLC */
+#ifdef	IXON
+	{"ixon", IXON, MD_INP},
+#endif /* IXON */
+#ifdef	IXANY
+	{"ixany", IXANY, MD_INP},
+#endif /* IXANY */
+#ifdef	IXOFF
+	{"ixoff", IXOFF, MD_INP},
+#endif /* IXOFF */
+#ifdef  IMAXBEL
+	{"imaxbel", IMAXBEL, MD_INP},
+#endif /* IMAXBEL */
+
+#ifdef	OPOST
+	{"opost", OPOST, MD_OUT},
+#endif /* OPOST */
+#ifdef	OLCUC
+	{"olcuc", OLCUC, MD_OUT},
+#endif /* OLCUC */
+#ifdef	ONLCR
+	{"onlcr", ONLCR, MD_OUT},
+#endif /* ONLCR */
+#ifdef	OCRNL
+	{"ocrnl", OCRNL, MD_OUT},
+#endif /* OCRNL */
+#ifdef	ONOCR
+	{"onocr", ONOCR, MD_OUT},
+#endif /* ONOCR */
+#ifdef ONOEOT
+	{"onoeot", ONOEOT, MD_OUT},
+#endif /* ONOEOT */
+#ifdef	ONLRET
+	{"onlret", ONLRET, MD_OUT},
+#endif /* ONLRET */
+#ifdef	OFILL
+	{"ofill", OFILL, MD_OUT},
+#endif /* OFILL */
+#ifdef	OFDEL
+	{"ofdel", OFDEL, MD_OUT},
+#endif /* OFDEL */
+#ifdef	NLDLY
+	{"nldly", NLDLY, MD_OUT},
+#endif /* NLDLY */
+#ifdef	CRDLY
+	{"crdly", CRDLY, MD_OUT},
+#endif /* CRDLY */
+#ifdef	TABDLY
+	{"tabdly", TABDLY, MD_OUT},
+#endif /* TABDLY */
+#ifdef	XTABS
+	{"xtabs", XTABS, MD_OUT},
+#endif /* XTABS */
+#ifdef	BSDLY
+	{"bsdly", BSDLY, MD_OUT},
+#endif /* BSDLY */
+#ifdef	VTDLY
+	{"vtdly", VTDLY, MD_OUT},
+#endif /* VTDLY */
+#ifdef	FFDLY
+	{"ffdly", FFDLY, MD_OUT},
+#endif /* FFDLY */
+#ifdef	PAGEOUT
+	{"pageout", PAGEOUT, MD_OUT},
+#endif /* PAGEOUT */
+#ifdef	WRAP
+	{"wrap", WRAP, MD_OUT},
+#endif /* WRAP */
+
+#ifdef	CIGNORE
+	{"cignore", CIGNORE, MD_CTL},
+#endif /* CBAUD */
+#ifdef	CBAUD
+	{"cbaud", CBAUD, MD_CTL},
+#endif /* CBAUD */
+#ifdef	CSTOPB
+	{"cstopb", CSTOPB, MD_CTL},
+#endif /* CSTOPB */
+#ifdef	CREAD
+	{"cread", CREAD, MD_CTL},
+#endif /* CREAD */
+#ifdef	PARENB
+	{"parenb", PARENB, MD_CTL},
+#endif /* PARENB */
+#ifdef	PARODD
+	{"parodd", PARODD, MD_CTL},
+#endif /* PARODD */
+#ifdef	HUPCL
+	{"hupcl", HUPCL, MD_CTL},
+#endif /* HUPCL */
+#ifdef	CLOCAL
+	{"clocal", CLOCAL, MD_CTL},
+#endif /* CLOCAL */
+#ifdef	LOBLK
+	{"loblk", LOBLK, MD_CTL},
+#endif /* LOBLK */
+#ifdef	CIBAUD
+	{"cibaud", CIBAUD, MD_CTL},
+#endif /* CIBAUD */
+#ifdef CRTSCTS
+#ifdef CCTS_OFLOW
+	{"ccts_oflow", CCTS_OFLOW, MD_CTL},
+#else
+	{"crtscts", CRTSCTS, MD_CTL},
+#endif /* CCTS_OFLOW */
+#endif /* CRTSCTS */
+#ifdef CRTS_IFLOW
+	{"crts_iflow", CRTS_IFLOW, MD_CTL},
+#endif /* CRTS_IFLOW */
+#ifdef CDTRCTS
+	{"cdtrcts", CDTRCTS, MD_CTL},
+#endif /* CDTRCTS */
+#ifdef MDMBUF
+	{"mdmbuf", MDMBUF, MD_CTL},
+#endif /* MDMBUF */
+#ifdef RCV1EN
+	{"rcv1en", RCV1EN, MD_CTL},
+#endif /* RCV1EN */
+#ifdef XMT1EN
+	{"xmt1en", XMT1EN, MD_CTL},
+#endif /* XMT1EN */
+
+#ifdef	ISIG
+	{"isig", ISIG, MD_LIN},
+#endif /* ISIG */
+#ifdef	ICANON
+	{"icanon", ICANON, MD_LIN},
+#endif /* ICANON */
+#ifdef	XCASE
+	{"xcase", XCASE, MD_LIN},
+#endif /* XCASE */
+#ifdef	ECHO
+	{"echo", ECHO, MD_LIN},
+#endif /* ECHO */
+#ifdef	ECHOE
+	{"echoe", ECHOE, MD_LIN},
+#endif /* ECHOE */
+#ifdef	ECHOK
+	{"echok", ECHOK, MD_LIN},
+#endif /* ECHOK */
+#ifdef	ECHONL
+	{"echonl", ECHONL, MD_LIN},
+#endif /* ECHONL */
+#ifdef	NOFLSH
+	{"noflsh", NOFLSH, MD_LIN},
+#endif /* NOFLSH */
+#ifdef	TOSTOP
+	{"tostop", TOSTOP, MD_LIN},
+#endif /* TOSTOP */
+#ifdef	ECHOCTL
+	{"echoctl", ECHOCTL, MD_LIN},
+#endif /* ECHOCTL */
+#ifdef	ECHOPRT
+	{"echoprt", ECHOPRT, MD_LIN},
+#endif /* ECHOPRT */
+#ifdef	ECHOKE
+	{"echoke", ECHOKE, MD_LIN},
+#endif /* ECHOKE */
+#ifdef	DEFECHO
+	{"defecho", DEFECHO, MD_LIN},
+#endif /* DEFECHO */
+#ifdef	FLUSHO
+	{"flusho", FLUSHO, MD_LIN},
+#endif /* FLUSHO */
+#ifdef	PENDIN
+	{"pendin", PENDIN, MD_LIN},
+#endif /* PENDIN */
+#ifdef	IEXTEN
+	{"iexten", IEXTEN, MD_LIN},
+#endif /* IEXTEN */
+#ifdef	NOKERNINFO
+	{"nokerninfo", NOKERNINFO, MD_LIN},
+#endif /* NOKERNINFO */
+#ifdef	ALTWERASE
+	{"altwerase", ALTWERASE, MD_LIN},
+#endif /* ALTWERASE */
+#ifdef	EXTPROC
+	{"extproc", EXTPROC, MD_LIN},
+#endif /* EXTPROC */
+
+#if defined(VINTR)
+	{"intr", C_SH(C_INTR), MD_CHAR},
+#endif /* VINTR */
+#if defined(VQUIT)
+	{"quit", C_SH(C_QUIT), MD_CHAR},
+#endif /* VQUIT */
+#if defined(VERASE)
+	{"erase", C_SH(C_ERASE), MD_CHAR},
+#endif /* VERASE */
+#if defined(VKILL)
+	{"kill", C_SH(C_KILL), MD_CHAR},
+#endif /* VKILL */
+#if defined(VEOF)
+	{"eof", C_SH(C_EOF), MD_CHAR},
+#endif /* VEOF */
+#if defined(VEOL)
+	{"eol", C_SH(C_EOL), MD_CHAR},
+#endif /* VEOL */
+#if defined(VEOL2)
+	{"eol2", C_SH(C_EOL2), MD_CHAR},
+#endif /* VEOL2 */
+#if defined(VSWTCH)
+	{"swtch", C_SH(C_SWTCH), MD_CHAR},
+#endif /* VSWTCH */
+#if defined(VDSWTCH)
+	{"dswtch", C_SH(C_DSWTCH), MD_CHAR},
+#endif /* VDSWTCH */
+#if defined(VERASE2)
+	{"erase2", C_SH(C_ERASE2), MD_CHAR},
+#endif /* VERASE2 */
+#if defined(VSTART)
+	{"start", C_SH(C_START), MD_CHAR},
+#endif /* VSTART */
+#if defined(VSTOP)
+	{"stop", C_SH(C_STOP), MD_CHAR},
+#endif /* VSTOP */
+#if defined(VWERASE)
+	{"werase", C_SH(C_WERASE), MD_CHAR},
+#endif /* VWERASE */
+#if defined(VSUSP)
+	{"susp", C_SH(C_SUSP), MD_CHAR},
+#endif /* VSUSP */
+#if defined(VDSUSP)
+	{"dsusp", C_SH(C_DSUSP), MD_CHAR},
+#endif /* VDSUSP */
+#if defined(VREPRINT)
+	{"reprint", C_SH(C_REPRINT), MD_CHAR},
+#endif /* VREPRINT */
+#if defined(VDISCARD)
+	{"discard", C_SH(C_DISCARD), MD_CHAR},
+#endif /* VDISCARD */
+#if defined(VLNEXT)
+	{"lnext", C_SH(C_LNEXT), MD_CHAR},
+#endif /* VLNEXT */
+#if defined(VSTATUS)
+	{"status", C_SH(C_STATUS), MD_CHAR},
+#endif /* VSTATUS */
+#if defined(VPAGE)
+	{"page", C_SH(C_PAGE), MD_CHAR},
+#endif /* VPAGE */
+#if defined(VPGOFF)
+	{"pgoff", C_SH(C_PGOFF), MD_CHAR},
+#endif /* VPGOFF */
+#if defined(VKILL2)
+	{"kill2", C_SH(C_KILL2), MD_CHAR},
+#endif /* VKILL2 */
+#if defined(VBRK)
+	{"brk", C_SH(C_BRK), MD_CHAR},
+#endif /* VBRK */
+#if defined(VMIN)
+	{"min", C_SH(C_MIN), MD_CHAR},
+#endif /* VMIN */
+#if defined(VTIME)
+	{"time", C_SH(C_TIME), MD_CHAR},
+#endif /* VTIME */
+	{NULL, 0, -1},
+};
+
+
+
+#define	tty_getty(el, td)	tcgetattr((el)->el_infd, (td))
+#define	tty_setty(el, td)	tcsetattr((el)->el_infd, TCSADRAIN, (td))
+
+#define	tty__gettabs(td)	((((td)->c_oflag & TAB3) == TAB3) ? 0 : 1)
+#define	tty__geteightbit(td)	(((td)->c_cflag & CSIZE) == CS8)
+#define	tty__cooked_mode(td)	((td)->c_lflag & ICANON)
+
+private int	tty__getcharindex(int);
+private void	tty__getchar(struct termios *, unsigned char *);
+private void	tty__setchar(struct termios *, unsigned char *);
+private speed_t	tty__getspeed(struct termios *);
+private int	tty_setup(EditLine *);
+
+#define	t_qu	t_ts
+
+
+/* tty_setup():
+ *	Get the tty parameters and initialize the editing state
+ */
+private int
+tty_setup(EditLine *el)
+{
+	int rst = 1;
+
+	if (el->el_flags & EDIT_DISABLED)
+		return (0);
+
+	if (tty_getty(el, &el->el_tty.t_ed) == -1) {
+#ifdef DEBUG_TTY
+		(void) fprintf(el->el_errfile,
+		    "tty_setup: tty_getty: %s\n", strerror(errno));
+#endif /* DEBUG_TTY */
+		return (-1);
+	}
+	el->el_tty.t_ts = el->el_tty.t_ex = el->el_tty.t_ed;
+
+	el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ex);
+	el->el_tty.t_tabs = tty__gettabs(&el->el_tty.t_ex);
+	el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ex);
+
+	el->el_tty.t_ex.c_iflag &= ~el->el_tty.t_t[EX_IO][MD_INP].t_clrmask;
+	el->el_tty.t_ex.c_iflag |= el->el_tty.t_t[EX_IO][MD_INP].t_setmask;
+
+	el->el_tty.t_ex.c_oflag &= ~el->el_tty.t_t[EX_IO][MD_OUT].t_clrmask;
+	el->el_tty.t_ex.c_oflag |= el->el_tty.t_t[EX_IO][MD_OUT].t_setmask;
+
+	el->el_tty.t_ex.c_cflag &= ~el->el_tty.t_t[EX_IO][MD_CTL].t_clrmask;
+	el->el_tty.t_ex.c_cflag |= el->el_tty.t_t[EX_IO][MD_CTL].t_setmask;
+
+	el->el_tty.t_ex.c_lflag &= ~el->el_tty.t_t[EX_IO][MD_LIN].t_clrmask;
+	el->el_tty.t_ex.c_lflag |= el->el_tty.t_t[EX_IO][MD_LIN].t_setmask;
+
+	/*
+         * Reset the tty chars to reasonable defaults
+         * If they are disabled, then enable them.
+         */
+	if (rst) {
+		if (tty__cooked_mode(&el->el_tty.t_ts)) {
+			tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
+			/*
+	                 * Don't affect CMIN and CTIME for the editor mode
+	                 */
+			for (rst = 0; rst < C_NCC - 2; rst++)
+				if (el->el_tty.t_c[TS_IO][rst] !=
+				      el->el_tty.t_vdisable
+				    && el->el_tty.t_c[ED_IO][rst] !=
+				      el->el_tty.t_vdisable)
+					el->el_tty.t_c[ED_IO][rst] =
+					    el->el_tty.t_c[TS_IO][rst];
+			for (rst = 0; rst < C_NCC; rst++)
+				if (el->el_tty.t_c[TS_IO][rst] !=
+				    el->el_tty.t_vdisable)
+					el->el_tty.t_c[EX_IO][rst] =
+					    el->el_tty.t_c[TS_IO][rst];
+		}
+		tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
+		if (tty_setty(el, &el->el_tty.t_ex) == -1) {
+#ifdef DEBUG_TTY
+			(void) fprintf(el->el_errfile,
+			    "tty_setup: tty_setty: %s\n",
+			    strerror(errno));
+#endif /* DEBUG_TTY */
+			return (-1);
+		}
+	}
+#ifdef notdef
+	else
+		tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
+#endif
+
+	el->el_tty.t_ed.c_iflag &= ~el->el_tty.t_t[ED_IO][MD_INP].t_clrmask;
+	el->el_tty.t_ed.c_iflag |= el->el_tty.t_t[ED_IO][MD_INP].t_setmask;
+
+	el->el_tty.t_ed.c_oflag &= ~el->el_tty.t_t[ED_IO][MD_OUT].t_clrmask;
+	el->el_tty.t_ed.c_oflag |= el->el_tty.t_t[ED_IO][MD_OUT].t_setmask;
+
+	el->el_tty.t_ed.c_cflag &= ~el->el_tty.t_t[ED_IO][MD_CTL].t_clrmask;
+	el->el_tty.t_ed.c_cflag |= el->el_tty.t_t[ED_IO][MD_CTL].t_setmask;
+
+	el->el_tty.t_ed.c_lflag &= ~el->el_tty.t_t[ED_IO][MD_LIN].t_clrmask;
+	el->el_tty.t_ed.c_lflag |= el->el_tty.t_t[ED_IO][MD_LIN].t_setmask;
+
+	tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
+	tty_bind_char(el, 1);
+	return (0);
+}
+
+protected int
+tty_init(EditLine *el)
+{
+
+	el->el_tty.t_mode = EX_IO;
+	el->el_tty.t_vdisable = _POSIX_VDISABLE;
+	(void) memcpy(el->el_tty.t_t, ttyperm, sizeof(ttyperm_t));
+	(void) memcpy(el->el_tty.t_c, ttychar, sizeof(ttychar_t));
+	return (tty_setup(el));
+}
+
+
+/* tty_end():
+ *	Restore the tty to its original settings
+ */
+protected void
+/*ARGSUSED*/
+tty_end(EditLine *el __attribute__((__unused__)))
+{
+
+	/* XXX: Maybe reset to an initial state? */
+}
+
+
+/* tty__getspeed():
+ *	Get the tty speed
+ */
+private speed_t
+tty__getspeed(struct termios *td)
+{
+	speed_t spd;
+
+	if ((spd = cfgetispeed(td)) == 0)
+		spd = cfgetospeed(td);
+	return (spd);
+}
+
+/* tty__getspeed():
+ *	Return the index of the asked char in the c_cc array
+ */
+private int
+tty__getcharindex(int i)
+{
+	switch (i) {
+#ifdef VINTR
+	case C_INTR:
+		return VINTR;
+#endif /* VINTR */
+#ifdef VQUIT
+	case C_QUIT:
+		return VQUIT;
+#endif /* VQUIT */
+#ifdef VERASE
+	case C_ERASE:
+		return VERASE;
+#endif /* VERASE */
+#ifdef VKILL
+	case C_KILL:
+		return VKILL;
+#endif /* VKILL */
+#ifdef VEOF
+	case C_EOF:
+		return VEOF;
+#endif /* VEOF */
+#ifdef VEOL
+	case C_EOL:
+		return VEOL;
+#endif /* VEOL */
+#ifdef VEOL2
+	case C_EOL2:
+		return VEOL2;
+#endif /* VEOL2 */
+#ifdef VSWTCH
+	case C_SWTCH:
+		return VSWTCH;
+#endif /* VSWTCH */
+#ifdef VDSWTCH
+	case C_DSWTCH:
+		return VDSWTCH;
+#endif /* VDSWTCH */
+#ifdef VERASE2
+	case C_ERASE2:
+		return VERASE2;
+#endif /* VERASE2 */
+#ifdef VSTART
+	case C_START:
+		return VSTART;
+#endif /* VSTART */
+#ifdef VSTOP
+	case C_STOP:
+		return VSTOP;
+#endif /* VSTOP */
+#ifdef VWERASE
+	case C_WERASE:
+		return VWERASE;
+#endif /* VWERASE */
+#ifdef VSUSP
+	case C_SUSP:
+		return VSUSP;
+#endif /* VSUSP */
+#ifdef VDSUSP
+	case C_DSUSP:
+		return VDSUSP;
+#endif /* VDSUSP */
+#ifdef VREPRINT
+	case C_REPRINT:
+		return VREPRINT;
+#endif /* VREPRINT */
+#ifdef VDISCARD
+	case C_DISCARD:
+		return VDISCARD;
+#endif /* VDISCARD */
+#ifdef VLNEXT
+	case C_LNEXT:
+		return VLNEXT;
+#endif /* VLNEXT */
+#ifdef VSTATUS
+	case C_STATUS:
+		return VSTATUS;
+#endif /* VSTATUS */
+#ifdef VPAGE
+	case C_PAGE:
+		return VPAGE;
+#endif /* VPAGE */
+#ifdef VPGOFF
+	case C_PGOFF:
+		return VPGOFF;
+#endif /* VPGOFF */
+#ifdef VKILL2
+	case C_KILL2:
+		return VKILL2;
+#endif /* KILL2 */
+#ifdef VMIN
+	case C_MIN:
+		return VMIN;
+#endif /* VMIN */
+#ifdef VTIME
+	case C_TIME:
+		return VTIME;
+#endif /* VTIME */
+	default:
+		return -1;
+	}
+}
+
+/* tty__getchar():
+ *	Get the tty characters
+ */
+private void
+tty__getchar(struct termios *td, unsigned char *s)
+{
+
+#ifdef VINTR
+	s[C_INTR] = td->c_cc[VINTR];
+#endif /* VINTR */
+#ifdef VQUIT
+	s[C_QUIT] = td->c_cc[VQUIT];
+#endif /* VQUIT */
+#ifdef VERASE
+	s[C_ERASE] = td->c_cc[VERASE];
+#endif /* VERASE */
+#ifdef VKILL
+	s[C_KILL] = td->c_cc[VKILL];
+#endif /* VKILL */
+#ifdef VEOF
+	s[C_EOF] = td->c_cc[VEOF];
+#endif /* VEOF */
+#ifdef VEOL
+	s[C_EOL] = td->c_cc[VEOL];
+#endif /* VEOL */
+#ifdef VEOL2
+	s[C_EOL2] = td->c_cc[VEOL2];
+#endif /* VEOL2 */
+#ifdef VSWTCH
+	s[C_SWTCH] = td->c_cc[VSWTCH];
+#endif /* VSWTCH */
+#ifdef VDSWTCH
+	s[C_DSWTCH] = td->c_cc[VDSWTCH];
+#endif /* VDSWTCH */
+#ifdef VERASE2
+	s[C_ERASE2] = td->c_cc[VERASE2];
+#endif /* VERASE2 */
+#ifdef VSTART
+	s[C_START] = td->c_cc[VSTART];
+#endif /* VSTART */
+#ifdef VSTOP
+	s[C_STOP] = td->c_cc[VSTOP];
+#endif /* VSTOP */
+#ifdef VWERASE
+	s[C_WERASE] = td->c_cc[VWERASE];
+#endif /* VWERASE */
+#ifdef VSUSP
+	s[C_SUSP] = td->c_cc[VSUSP];
+#endif /* VSUSP */
+#ifdef VDSUSP
+	s[C_DSUSP] = td->c_cc[VDSUSP];
+#endif /* VDSUSP */
+#ifdef VREPRINT
+	s[C_REPRINT] = td->c_cc[VREPRINT];
+#endif /* VREPRINT */
+#ifdef VDISCARD
+	s[C_DISCARD] = td->c_cc[VDISCARD];
+#endif /* VDISCARD */
+#ifdef VLNEXT
+	s[C_LNEXT] = td->c_cc[VLNEXT];
+#endif /* VLNEXT */
+#ifdef VSTATUS
+	s[C_STATUS] = td->c_cc[VSTATUS];
+#endif /* VSTATUS */
+#ifdef VPAGE
+	s[C_PAGE] = td->c_cc[VPAGE];
+#endif /* VPAGE */
+#ifdef VPGOFF
+	s[C_PGOFF] = td->c_cc[VPGOFF];
+#endif /* VPGOFF */
+#ifdef VKILL2
+	s[C_KILL2] = td->c_cc[VKILL2];
+#endif /* KILL2 */
+#ifdef VMIN
+	s[C_MIN] = td->c_cc[VMIN];
+#endif /* VMIN */
+#ifdef VTIME
+	s[C_TIME] = td->c_cc[VTIME];
+#endif /* VTIME */
+}				/* tty__getchar */
+
+
+/* tty__setchar():
+ *	Set the tty characters
+ */
+private void
+tty__setchar(struct termios *td, unsigned char *s)
+{
+
+#ifdef VINTR
+	td->c_cc[VINTR] = s[C_INTR];
+#endif /* VINTR */
+#ifdef VQUIT
+	td->c_cc[VQUIT] = s[C_QUIT];
+#endif /* VQUIT */
+#ifdef VERASE
+	td->c_cc[VERASE] = s[C_ERASE];
+#endif /* VERASE */
+#ifdef VKILL
+	td->c_cc[VKILL] = s[C_KILL];
+#endif /* VKILL */
+#ifdef VEOF
+	td->c_cc[VEOF] = s[C_EOF];
+#endif /* VEOF */
+#ifdef VEOL
+	td->c_cc[VEOL] = s[C_EOL];
+#endif /* VEOL */
+#ifdef VEOL2
+	td->c_cc[VEOL2] = s[C_EOL2];
+#endif /* VEOL2 */
+#ifdef VSWTCH
+	td->c_cc[VSWTCH] = s[C_SWTCH];
+#endif /* VSWTCH */
+#ifdef VDSWTCH
+	td->c_cc[VDSWTCH] = s[C_DSWTCH];
+#endif /* VDSWTCH */
+#ifdef VERASE2
+	td->c_cc[VERASE2] = s[C_ERASE2];
+#endif /* VERASE2 */
+#ifdef VSTART
+	td->c_cc[VSTART] = s[C_START];
+#endif /* VSTART */
+#ifdef VSTOP
+	td->c_cc[VSTOP] = s[C_STOP];
+#endif /* VSTOP */
+#ifdef VWERASE
+	td->c_cc[VWERASE] = s[C_WERASE];
+#endif /* VWERASE */
+#ifdef VSUSP
+	td->c_cc[VSUSP] = s[C_SUSP];
+#endif /* VSUSP */
+#ifdef VDSUSP
+	td->c_cc[VDSUSP] = s[C_DSUSP];
+#endif /* VDSUSP */
+#ifdef VREPRINT
+	td->c_cc[VREPRINT] = s[C_REPRINT];
+#endif /* VREPRINT */
+#ifdef VDISCARD
+	td->c_cc[VDISCARD] = s[C_DISCARD];
+#endif /* VDISCARD */
+#ifdef VLNEXT
+	td->c_cc[VLNEXT] = s[C_LNEXT];
+#endif /* VLNEXT */
+#ifdef VSTATUS
+	td->c_cc[VSTATUS] = s[C_STATUS];
+#endif /* VSTATUS */
+#ifdef VPAGE
+	td->c_cc[VPAGE] = s[C_PAGE];
+#endif /* VPAGE */
+#ifdef VPGOFF
+	td->c_cc[VPGOFF] = s[C_PGOFF];
+#endif /* VPGOFF */
+#ifdef VKILL2
+	td->c_cc[VKILL2] = s[C_KILL2];
+#endif /* VKILL2 */
+#ifdef VMIN
+	td->c_cc[VMIN] = s[C_MIN];
+#endif /* VMIN */
+#ifdef VTIME
+	td->c_cc[VTIME] = s[C_TIME];
+#endif /* VTIME */
+}				/* tty__setchar */
+
+
+/* tty_bind_char():
+ *	Rebind the editline functions
+ */
+protected void
+tty_bind_char(EditLine *el, int force)
+{
+
+	unsigned char *t_n = el->el_tty.t_c[ED_IO];
+	unsigned char *t_o = el->el_tty.t_ed.c_cc;
+	unsigned char new[2], old[2];
+	const ttymap_t *tp;
+	el_action_t *map, *alt;
+	const el_action_t *dmap, *dalt;
+	new[1] = old[1] = '\0';
+
+	map = el->el_map.key;
+	alt = el->el_map.alt;
+	if (el->el_map.type == MAP_VI) {
+		dmap = el->el_map.vii;
+		dalt = el->el_map.vic;
+	} else {
+		dmap = el->el_map.emacs;
+		dalt = NULL;
+	}
+
+	for (tp = tty_map; tp->nch != -1; tp++) {
+		new[0] = t_n[tp->nch];
+		old[0] = t_o[tp->och];
+		if (new[0] == old[0] && !force)
+			continue;
+		/* Put the old default binding back, and set the new binding */
+		key_clear(el, map, (char *)old);
+		map[old[0]] = dmap[old[0]];
+		key_clear(el, map, (char *)new);
+		/* MAP_VI == 1, MAP_EMACS == 0... */
+		map[new[0]] = tp->bind[el->el_map.type];
+		if (dalt) {
+			key_clear(el, alt, (char *)old);
+			alt[old[0]] = dalt[old[0]];
+			key_clear(el, alt, (char *)new);
+			alt[new[0]] = tp->bind[el->el_map.type + 1];
+		}
+	}
+}
+
+
+/* tty_rawmode():
+ * 	Set terminal into 1 character at a time mode.
+ */
+protected int
+tty_rawmode(EditLine *el)
+{
+
+	if (el->el_tty.t_mode == ED_IO || el->el_tty.t_mode == QU_IO)
+		return (0);
+
+	if (el->el_flags & EDIT_DISABLED)
+		return (0);
+
+	if (tty_getty(el, &el->el_tty.t_ts) == -1) {
+#ifdef DEBUG_TTY
+		(void) fprintf(el->el_errfile, "tty_rawmode: tty_getty: %s\n",
+		    strerror(errno));
+#endif /* DEBUG_TTY */
+		return (-1);
+	}
+	/*
+         * We always keep up with the eight bit setting and the speed of the
+         * tty. But only we only believe changes that are made to cooked mode!
+         */
+	el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ts);
+	el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ts);
+
+	if (tty__getspeed(&el->el_tty.t_ex) != el->el_tty.t_speed ||
+	    tty__getspeed(&el->el_tty.t_ed) != el->el_tty.t_speed) {
+		(void) cfsetispeed(&el->el_tty.t_ex, el->el_tty.t_speed);
+		(void) cfsetospeed(&el->el_tty.t_ex, el->el_tty.t_speed);
+		(void) cfsetispeed(&el->el_tty.t_ed, el->el_tty.t_speed);
+		(void) cfsetospeed(&el->el_tty.t_ed, el->el_tty.t_speed);
+	}
+	if (tty__cooked_mode(&el->el_tty.t_ts)) {
+		if (el->el_tty.t_ts.c_cflag != el->el_tty.t_ex.c_cflag) {
+			el->el_tty.t_ex.c_cflag =
+			    el->el_tty.t_ts.c_cflag;
+			el->el_tty.t_ex.c_cflag &=
+			    ~el->el_tty.t_t[EX_IO][MD_CTL].t_clrmask;
+			el->el_tty.t_ex.c_cflag |=
+			    el->el_tty.t_t[EX_IO][MD_CTL].t_setmask;
+
+			el->el_tty.t_ed.c_cflag =
+			    el->el_tty.t_ts.c_cflag;
+			el->el_tty.t_ed.c_cflag &=
+			    ~el->el_tty.t_t[ED_IO][MD_CTL].t_clrmask;
+			el->el_tty.t_ed.c_cflag |=
+			    el->el_tty.t_t[ED_IO][MD_CTL].t_setmask;
+		}
+		if ((el->el_tty.t_ts.c_lflag != el->el_tty.t_ex.c_lflag) &&
+		    (el->el_tty.t_ts.c_lflag != el->el_tty.t_ed.c_lflag)) {
+			el->el_tty.t_ex.c_lflag =
+			    el->el_tty.t_ts.c_lflag;
+			el->el_tty.t_ex.c_lflag &=
+			    ~el->el_tty.t_t[EX_IO][MD_LIN].t_clrmask;
+			el->el_tty.t_ex.c_lflag |=
+			    el->el_tty.t_t[EX_IO][MD_LIN].t_setmask;
+
+			el->el_tty.t_ed.c_lflag =
+			    el->el_tty.t_ts.c_lflag;
+			el->el_tty.t_ed.c_lflag &=
+			    ~el->el_tty.t_t[ED_IO][MD_LIN].t_clrmask;
+			el->el_tty.t_ed.c_lflag |=
+			    el->el_tty.t_t[ED_IO][MD_LIN].t_setmask;
+		}
+		if ((el->el_tty.t_ts.c_iflag != el->el_tty.t_ex.c_iflag) &&
+		    (el->el_tty.t_ts.c_iflag != el->el_tty.t_ed.c_iflag)) {
+			el->el_tty.t_ex.c_iflag =
+			    el->el_tty.t_ts.c_iflag;
+			el->el_tty.t_ex.c_iflag &=
+			    ~el->el_tty.t_t[EX_IO][MD_INP].t_clrmask;
+			el->el_tty.t_ex.c_iflag |=
+			    el->el_tty.t_t[EX_IO][MD_INP].t_setmask;
+
+			el->el_tty.t_ed.c_iflag =
+			    el->el_tty.t_ts.c_iflag;
+			el->el_tty.t_ed.c_iflag &=
+			    ~el->el_tty.t_t[ED_IO][MD_INP].t_clrmask;
+			el->el_tty.t_ed.c_iflag |=
+			    el->el_tty.t_t[ED_IO][MD_INP].t_setmask;
+		}
+		if ((el->el_tty.t_ts.c_oflag != el->el_tty.t_ex.c_oflag) &&
+		    (el->el_tty.t_ts.c_oflag != el->el_tty.t_ed.c_oflag)) {
+			el->el_tty.t_ex.c_oflag =
+			    el->el_tty.t_ts.c_oflag;
+			el->el_tty.t_ex.c_oflag &=
+			    ~el->el_tty.t_t[EX_IO][MD_OUT].t_clrmask;
+			el->el_tty.t_ex.c_oflag |=
+			    el->el_tty.t_t[EX_IO][MD_OUT].t_setmask;
+
+			el->el_tty.t_ed.c_oflag =
+			    el->el_tty.t_ts.c_oflag;
+			el->el_tty.t_ed.c_oflag &=
+			    ~el->el_tty.t_t[ED_IO][MD_OUT].t_clrmask;
+			el->el_tty.t_ed.c_oflag |=
+			    el->el_tty.t_t[ED_IO][MD_OUT].t_setmask;
+		}
+		if (tty__gettabs(&el->el_tty.t_ex) == 0)
+			el->el_tty.t_tabs = 0;
+		else
+			el->el_tty.t_tabs = EL_CAN_TAB ? 1 : 0;
+
+		{
+			int i;
+
+			tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
+			/*
+		         * Check if the user made any changes.
+		         * If he did, then propagate the changes to the
+		         * edit and execute data structures.
+		         */
+			for (i = 0; i < C_NCC; i++)
+				if (el->el_tty.t_c[TS_IO][i] !=
+				    el->el_tty.t_c[EX_IO][i])
+					break;
+
+			if (i != C_NCC) {
+				/*
+				 * Propagate changes only to the unprotected
+				 * chars that have been modified just now.
+				 */
+				for (i = 0; i < C_NCC; i++) {
+					if (!((el->el_tty.t_t[ED_IO][MD_CHAR].t_setmask & C_SH(i)))
+					    && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
+						el->el_tty.t_c[ED_IO][i] = el->el_tty.t_c[TS_IO][i];
+					if (el->el_tty.t_t[ED_IO][MD_CHAR].t_clrmask & C_SH(i))
+						el->el_tty.t_c[ED_IO][i] = el->el_tty.t_vdisable;
+				}
+				tty_bind_char(el, 0);
+				tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
+
+				for (i = 0; i < C_NCC; i++) {
+					if (!((el->el_tty.t_t[EX_IO][MD_CHAR].t_setmask & C_SH(i)))
+					    && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
+						el->el_tty.t_c[EX_IO][i] = el->el_tty.t_c[TS_IO][i];
+					if (el->el_tty.t_t[EX_IO][MD_CHAR].t_clrmask & C_SH(i))
+						el->el_tty.t_c[EX_IO][i] = el->el_tty.t_vdisable;
+				}
+				tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
+			}
+		}
+	}
+	if (tty_setty(el, &el->el_tty.t_ed) == -1) {
+#ifdef DEBUG_TTY
+		(void) fprintf(el->el_errfile, "tty_rawmode: tty_setty: %s\n",
+		    strerror(errno));
+#endif /* DEBUG_TTY */
+		return (-1);
+	}
+	el->el_tty.t_mode = ED_IO;
+	return (0);
+}
+
+
+/* tty_cookedmode():
+ *	Set the tty back to normal mode
+ */
+protected int
+tty_cookedmode(EditLine *el)
+{				/* set tty in normal setup */
+
+	if (el->el_tty.t_mode == EX_IO)
+		return (0);
+
+	if (el->el_flags & EDIT_DISABLED)
+		return (0);
+
+	if (tty_setty(el, &el->el_tty.t_ex) == -1) {
+#ifdef DEBUG_TTY
+		(void) fprintf(el->el_errfile,
+		    "tty_cookedmode: tty_setty: %s\n",
+		    strerror(errno));
+#endif /* DEBUG_TTY */
+		return (-1);
+	}
+	el->el_tty.t_mode = EX_IO;
+	return (0);
+}
+
+
+/* tty_quotemode():
+ *	Turn on quote mode
+ */
+protected int
+tty_quotemode(EditLine *el)
+{
+	if (el->el_tty.t_mode == QU_IO)
+		return (0);
+
+	el->el_tty.t_qu = el->el_tty.t_ed;
+
+	el->el_tty.t_qu.c_iflag &= ~el->el_tty.t_t[QU_IO][MD_INP].t_clrmask;
+	el->el_tty.t_qu.c_iflag |= el->el_tty.t_t[QU_IO][MD_INP].t_setmask;
+
+	el->el_tty.t_qu.c_oflag &= ~el->el_tty.t_t[QU_IO][MD_OUT].t_clrmask;
+	el->el_tty.t_qu.c_oflag |= el->el_tty.t_t[QU_IO][MD_OUT].t_setmask;
+
+	el->el_tty.t_qu.c_cflag &= ~el->el_tty.t_t[QU_IO][MD_CTL].t_clrmask;
+	el->el_tty.t_qu.c_cflag |= el->el_tty.t_t[QU_IO][MD_CTL].t_setmask;
+
+	el->el_tty.t_qu.c_lflag &= ~el->el_tty.t_t[QU_IO][MD_LIN].t_clrmask;
+	el->el_tty.t_qu.c_lflag |= el->el_tty.t_t[QU_IO][MD_LIN].t_setmask;
+
+	if (tty_setty(el, &el->el_tty.t_qu) == -1) {
+#ifdef DEBUG_TTY
+		(void) fprintf(el->el_errfile, "QuoteModeOn: tty_setty: %s\n",
+		    strerror(errno));
+#endif /* DEBUG_TTY */
+		return (-1);
+	}
+	el->el_tty.t_mode = QU_IO;
+	return (0);
+}
+
+
+/* tty_noquotemode():
+ *	Turn off quote mode
+ */
+protected int
+tty_noquotemode(EditLine *el)
+{
+
+	if (el->el_tty.t_mode != QU_IO)
+		return (0);
+	if (tty_setty(el, &el->el_tty.t_ed) == -1) {
+#ifdef DEBUG_TTY
+		(void) fprintf(el->el_errfile, "QuoteModeOff: tty_setty: %s\n",
+		    strerror(errno));
+#endif /* DEBUG_TTY */
+		return (-1);
+	}
+	el->el_tty.t_mode = ED_IO;
+	return (0);
+}
+
+
+/* tty_stty():
+ *	Stty builtin
+ */
+protected int
+/*ARGSUSED*/
+tty_stty(EditLine *el, int argc __attribute__((__unused__)), const char **argv)
+{
+	const ttymodes_t *m;
+	char x;
+	int aflag = 0;
+	const char *s, *d;
+	const char *name;
+	struct termios *tios = &el->el_tty.t_ex;
+	int z = EX_IO;
+
+	if (argv == NULL)
+		return (-1);
+	name = *argv++;
+
+	while (argv && *argv && argv[0][0] == '-' && argv[0][2] == '\0')
+		switch (argv[0][1]) {
+		case 'a':
+			aflag++;
+			argv++;
+			break;
+		case 'd':
+			argv++;
+			tios = &el->el_tty.t_ed;
+			z = ED_IO;
+			break;
+		case 'x':
+			argv++;
+			tios = &el->el_tty.t_ex;
+			z = EX_IO;
+			break;
+		case 'q':
+			argv++;
+			tios = &el->el_tty.t_ts;
+			z = QU_IO;
+			break;
+		default:
+			(void) fprintf(el->el_errfile,
+			    "%s: Unknown switch `%c'.\n",
+			    name, argv[0][1]);
+			return (-1);
+		}
+
+	if (!argv || !*argv) {
+		int i = -1;
+		int len = 0, st = 0, cu;
+		for (m = ttymodes; m->m_name; m++) {
+			if (m->m_type != i) {
+				(void) fprintf(el->el_outfile, "%s%s",
+				    i != -1 ? "\n" : "",
+				    el->el_tty.t_t[z][m->m_type].t_name);
+				i = m->m_type;
+				st = len =
+				    strlen(el->el_tty.t_t[z][m->m_type].t_name);
+			}
+			if (i != -1) {
+			    x = (el->el_tty.t_t[z][i].t_setmask & m->m_value)
+				?  '+' : '\0';
+			    x = (el->el_tty.t_t[z][i].t_clrmask & m->m_value)
+				? '-' : x;
+			} else {
+			    x = '\0';
+			}
+
+			if (x != '\0' || aflag) {
+
+				cu = strlen(m->m_name) + (x != '\0') + 1;
+
+				if (len + cu >= el->el_term.t_size.h) {
+					(void) fprintf(el->el_outfile, "\n%*s",
+					    st, "");
+					len = st + cu;
+				} else
+					len += cu;
+
+				if (x != '\0')
+					(void) fprintf(el->el_outfile, "%c%s ",
+					    x, m->m_name);
+				else
+					(void) fprintf(el->el_outfile, "%s ",
+					    m->m_name);
+			}
+		}
+		(void) fprintf(el->el_outfile, "\n");
+		return (0);
+	}
+	while (argv && (s = *argv++)) {
+		const char *p;
+		switch (*s) {
+		case '+':
+		case '-':
+			x = *s++;
+			break;
+		default:
+			x = '\0';
+			break;
+		}
+		d = s;
+		p = strchr(s, '=');
+		for (m = ttymodes; m->m_name; m++)
+			if ((p ? strncmp(m->m_name, d, (size_t)(p - d)) :
+			    strcmp(m->m_name, d)) == 0 &&
+			    (p == NULL || m->m_type == MD_CHAR))
+				break;
+
+		if (!m->m_name) {
+			(void) fprintf(el->el_errfile,
+			    "%s: Invalid argument `%s'.\n", name, d);
+			return (-1);
+		}
+		if (p) {
+			int c = ffs((int)m->m_value);
+			int v = *++p ? parse__escape((const char **) &p) :
+			    el->el_tty.t_vdisable;
+			assert(c-- != 0);
+			c = tty__getcharindex(c);
+			assert(c != -1);
+			tios->c_cc[c] = v;
+			continue;
+		}
+		switch (x) {
+		case '+':
+			el->el_tty.t_t[z][m->m_type].t_setmask |= m->m_value;
+			el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
+			break;
+		case '-':
+			el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
+			el->el_tty.t_t[z][m->m_type].t_clrmask |= m->m_value;
+			break;
+		default:
+			el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
+			el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
+			break;
+		}
+	}
+	return (0);
+}
+
+
+#ifdef notyet
+/* tty_printchar():
+ *	DEbugging routine to print the tty characters
+ */
+private void
+tty_printchar(EditLine *el, unsigned char *s)
+{
+	ttyperm_t *m;
+	int i;
+
+	for (i = 0; i < C_NCC; i++) {
+		for (m = el->el_tty.t_t; m->m_name; m++)
+			if (m->m_type == MD_CHAR && C_SH(i) == m->m_value)
+				break;
+		if (m->m_name)
+			(void) fprintf(el->el_errfile, "%s ^%c ",
+			    m->m_name, s[i] + 'A' - 1);
+		if (i % 5 == 0)
+			(void) fprintf(el->el_errfile, "\n");
+	}
+	(void) fprintf(el->el_errfile, "\n");
+}
+#endif /* notyet */
diff --git a/frontend/libedit/tty.h b/frontend/libedit/tty.h
new file mode 100644
index 0000000..10e9b98
--- /dev/null
+++ b/frontend/libedit/tty.h
@@ -0,0 +1,480 @@
+/*	$NetBSD: tty.h,v 1.11 2005/06/01 11:37:52 lukem Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)tty.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.tty.h: Local terminal header
+ */
+#ifndef _h_el_tty
+#define	_h_el_tty
+
+#include "histedit.h"
+#include <termios.h>
+#include <unistd.h>
+
+/* Define our own since everyone gets it wrong! */
+#define	CONTROL(A)	((A) & 037)
+
+/*
+ * Aix compatible names
+ */
+# if defined(VWERSE) && !defined(VWERASE)
+#  define VWERASE VWERSE
+# endif /* VWERSE && !VWERASE */
+
+# if defined(VDISCRD) && !defined(VDISCARD)
+#  define VDISCARD VDISCRD
+# endif /* VDISCRD && !VDISCARD */
+
+# if defined(VFLUSHO) && !defined(VDISCARD)
+#  define VDISCARD VFLUSHO
+# endif  /* VFLUSHO && VDISCARD */
+
+# if defined(VSTRT) && !defined(VSTART)
+#  define VSTART VSTRT
+# endif /* VSTRT && ! VSTART */
+
+# if defined(VSTAT) && !defined(VSTATUS)
+#  define VSTATUS VSTAT
+# endif /* VSTAT && ! VSTATUS */
+
+# ifndef ONLRET
+#  define ONLRET 0
+# endif /* ONLRET */
+
+# ifndef TAB3
+#  ifdef OXTABS
+#   define TAB3 OXTABS
+#  else
+#   define TAB3 0
+#  endif /* OXTABS */
+# endif /* !TAB3 */
+
+# if defined(OXTABS) && !defined(XTABS)
+#  define XTABS OXTABS
+# endif /* OXTABS && !XTABS */
+
+# ifndef ONLCR
+#  define ONLCR 0
+# endif /* ONLCR */
+
+# ifndef IEXTEN
+#  define IEXTEN 0
+# endif /* IEXTEN */
+
+# ifndef ECHOCTL
+#  define ECHOCTL 0
+# endif /* ECHOCTL */
+
+# ifndef PARENB
+#  define PARENB 0
+# endif /* PARENB */
+
+# ifndef EXTPROC
+#  define EXTPROC 0
+# endif /* EXTPROC */
+
+# ifndef FLUSHO
+#  define FLUSHO  0
+# endif /* FLUSHO */
+
+
+# if defined(VDISABLE) && !defined(_POSIX_VDISABLE)
+#  define _POSIX_VDISABLE VDISABLE
+# endif /* VDISABLE && ! _POSIX_VDISABLE */
+
+/*
+ * Work around ISC's definition of IEXTEN which is
+ * XCASE!
+ */
+# ifdef ISC
+#  if defined(IEXTEN) && defined(XCASE)
+#   if IEXTEN == XCASE
+#    undef IEXTEN
+#    define IEXTEN 0
+#   endif /* IEXTEN == XCASE */
+#  endif /* IEXTEN && XCASE */
+#  if defined(IEXTEN) && !defined(XCASE)
+#   define XCASE IEXTEN
+#   undef IEXTEN
+#   define IEXTEN 0
+#  endif /* IEXTEN && !XCASE */
+# endif /* ISC */
+
+/*
+ * Work around convex weirdness where turning off IEXTEN makes us
+ * lose all postprocessing!
+ */
+#if defined(convex) || defined(__convex__)
+# if defined(IEXTEN) && IEXTEN != 0
+#  undef IEXTEN
+#  define IEXTEN 0
+# endif /* IEXTEN != 0 */
+#endif /* convex || __convex__ */
+
+/*
+ * So that we don't lose job control.
+ */
+#ifdef __SVR4
+# undef CSWTCH
+#endif
+
+#ifndef _POSIX_VDISABLE
+# define _POSIX_VDISABLE ((unsigned char) -1)
+#endif /* _POSIX_VDISABLE */
+
+#if !defined(CREPRINT) && defined(CRPRNT)
+# define CREPRINT CRPRNT
+#endif /* !CREPRINT && CRPRNT */
+#if !defined(CDISCARD) && defined(CFLUSH)
+# define CDISCARD CFLUSH
+#endif /* !CDISCARD && CFLUSH */
+
+#ifndef CINTR
+# define CINTR		CONTROL('c')
+#endif /* CINTR */
+#ifndef CQUIT
+# define CQUIT		034	/* ^\ */
+#endif /* CQUIT */
+#ifndef CERASE
+# define CERASE		0177	/* ^? */
+#endif /* CERASE */
+#ifndef CKILL
+# define CKILL		CONTROL('u')
+#endif /* CKILL */
+#ifndef CEOF
+# define CEOF		CONTROL('d')
+#endif /* CEOF */
+#ifndef CEOL
+# define CEOL		_POSIX_VDISABLE
+#endif /* CEOL */
+#ifndef CEOL2
+# define CEOL2		_POSIX_VDISABLE
+#endif /* CEOL2 */
+#ifndef CSWTCH
+# define CSWTCH		_POSIX_VDISABLE
+#endif /* CSWTCH */
+#ifndef CDSWTCH
+# define CDSWTCH	_POSIX_VDISABLE
+#endif /* CDSWTCH */
+#ifndef CERASE2
+# define CERASE2	_POSIX_VDISABLE
+#endif /* CERASE2 */
+#ifndef CSTART
+# define CSTART		CONTROL('q')
+#endif /* CSTART */
+#ifndef CSTOP
+# define CSTOP		CONTROL('s')
+#endif /* CSTOP */
+#ifndef CSUSP
+# define CSUSP		CONTROL('z')
+#endif /* CSUSP */
+#ifndef CDSUSP
+# define CDSUSP		CONTROL('y')
+#endif /* CDSUSP */
+
+#ifdef hpux
+
+# ifndef CREPRINT
+#  define CREPRINT	_POSIX_VDISABLE
+# endif /* CREPRINT */
+# ifndef CDISCARD
+#  define CDISCARD	_POSIX_VDISABLE
+# endif /* CDISCARD */
+# ifndef CLNEXT
+#  define CLNEXT	_POSIX_VDISABLE
+# endif /* CLNEXT */
+# ifndef CWERASE
+#  define CWERASE	_POSIX_VDISABLE
+# endif /* CWERASE */
+
+#else /* !hpux */
+
+# ifndef CREPRINT
+#  define CREPRINT	CONTROL('r')
+# endif /* CREPRINT */
+# ifndef CDISCARD
+#  define CDISCARD	CONTROL('o')
+# endif /* CDISCARD */
+# ifndef CLNEXT
+#  define CLNEXT	CONTROL('v')
+# endif /* CLNEXT */
+# ifndef CWERASE
+#  define CWERASE	CONTROL('w')
+# endif /* CWERASE */
+
+#endif /* hpux */
+
+#ifndef CSTATUS
+# define CSTATUS	CONTROL('t')
+#endif /* CSTATUS */
+#ifndef CPAGE
+# define CPAGE		' '
+#endif /* CPAGE */
+#ifndef CPGOFF
+# define CPGOFF		CONTROL('m')
+#endif /* CPGOFF */
+#ifndef CKILL2
+# define CKILL2		_POSIX_VDISABLE
+#endif /* CKILL2 */
+#ifndef CBRK
+# ifndef masscomp
+#  define CBRK		0377
+# else
+#  define CBRK		'\0'
+# endif /* masscomp */
+#endif /* CBRK */
+#ifndef CMIN
+# define CMIN		CEOF
+#endif /* CMIN */
+#ifndef CTIME
+# define CTIME		CEOL
+#endif /* CTIME */
+
+/*
+ * Fix for sun inconsistency. On termio VSUSP and the rest of the
+ * ttychars > NCC are defined. So we undefine them.
+ */
+#if defined(TERMIO) || defined(POSIX)
+# if defined(POSIX) && defined(NCCS)
+#  define NUMCC		NCCS
+# else
+#  ifdef NCC
+#   define NUMCC	NCC
+#  endif /* NCC */
+# endif /* POSIX && NCCS */
+# ifdef NUMCC
+#  ifdef VINTR
+#   if NUMCC <= VINTR
+#    undef VINTR
+#   endif /* NUMCC <= VINTR */
+#  endif /* VINTR */
+#  ifdef VQUIT
+#   if NUMCC <= VQUIT
+#    undef VQUIT
+#   endif /* NUMCC <= VQUIT */
+#  endif /* VQUIT */
+#  ifdef VERASE
+#   if NUMCC <= VERASE
+#    undef VERASE
+#   endif /* NUMCC <= VERASE */
+#  endif /* VERASE */
+#  ifdef VKILL
+#   if NUMCC <= VKILL
+#    undef VKILL
+#   endif /* NUMCC <= VKILL */
+#  endif /* VKILL */
+#  ifdef VEOF
+#   if NUMCC <= VEOF
+#    undef VEOF
+#   endif /* NUMCC <= VEOF */
+#  endif /* VEOF */
+#  ifdef VEOL
+#   if NUMCC <= VEOL
+#    undef VEOL
+#   endif /* NUMCC <= VEOL */
+#  endif /* VEOL */
+#  ifdef VEOL2
+#   if NUMCC <= VEOL2
+#    undef VEOL2
+#   endif /* NUMCC <= VEOL2 */
+#  endif /* VEOL2 */
+#  ifdef VSWTCH
+#   if NUMCC <= VSWTCH
+#    undef VSWTCH
+#   endif /* NUMCC <= VSWTCH */
+#  endif /* VSWTCH */
+#  ifdef VDSWTCH
+#   if NUMCC <= VDSWTCH
+#    undef VDSWTCH
+#   endif /* NUMCC <= VDSWTCH */
+#  endif /* VDSWTCH */
+#  ifdef VERASE2
+#   if NUMCC <= VERASE2
+#    undef VERASE2
+#   endif /* NUMCC <= VERASE2 */
+#  endif /* VERASE2 */
+#  ifdef VSTART
+#   if NUMCC <= VSTART
+#    undef VSTART
+#   endif /* NUMCC <= VSTART */
+#  endif /* VSTART */
+#  ifdef VSTOP
+#   if NUMCC <= VSTOP
+#    undef VSTOP
+#   endif /* NUMCC <= VSTOP */
+#  endif /* VSTOP */
+#  ifdef VWERASE
+#   if NUMCC <= VWERASE
+#    undef VWERASE
+#   endif /* NUMCC <= VWERASE */
+#  endif /* VWERASE */
+#  ifdef VSUSP
+#   if NUMCC <= VSUSP
+#    undef VSUSP
+#   endif /* NUMCC <= VSUSP */
+#  endif /* VSUSP */
+#  ifdef VDSUSP
+#   if NUMCC <= VDSUSP
+#    undef VDSUSP
+#   endif /* NUMCC <= VDSUSP */
+#  endif /* VDSUSP */
+#  ifdef VREPRINT
+#   if NUMCC <= VREPRINT
+#    undef VREPRINT
+#   endif /* NUMCC <= VREPRINT */
+#  endif /* VREPRINT */
+#  ifdef VDISCARD
+#   if NUMCC <= VDISCARD
+#    undef VDISCARD
+#   endif /* NUMCC <= VDISCARD */
+#  endif /* VDISCARD */
+#  ifdef VLNEXT
+#   if NUMCC <= VLNEXT
+#    undef VLNEXT
+#   endif /* NUMCC <= VLNEXT */
+#  endif /* VLNEXT */
+#  ifdef VSTATUS
+#   if NUMCC <= VSTATUS
+#    undef VSTATUS
+#   endif /* NUMCC <= VSTATUS */
+#  endif /* VSTATUS */
+#  ifdef VPAGE
+#   if NUMCC <= VPAGE
+#    undef VPAGE
+#   endif /* NUMCC <= VPAGE */
+#  endif /* VPAGE */
+#  ifdef VPGOFF
+#   if NUMCC <= VPGOFF
+#    undef VPGOFF
+#   endif /* NUMCC <= VPGOFF */
+#  endif /* VPGOFF */
+#  ifdef VKILL2
+#   if NUMCC <= VKILL2
+#    undef VKILL2
+#   endif /* NUMCC <= VKILL2 */
+#  endif /* VKILL2 */
+#  ifdef VBRK
+#   if NUMCC <= VBRK
+#    undef VBRK
+#   endif /* NUMCC <= VBRK */
+#  endif /* VBRK */
+#  ifdef VMIN
+#   if NUMCC <= VMIN
+#    undef VMIN
+#   endif /* NUMCC <= VMIN */
+#  endif /* VMIN */
+#  ifdef VTIME
+#   if NUMCC <= VTIME
+#    undef VTIME
+#   endif /* NUMCC <= VTIME */
+#  endif /* VTIME */
+# endif /* NUMCC */
+#endif /* !POSIX */
+
+#define	C_INTR		 0
+#define	C_QUIT		 1
+#define	C_ERASE		 2
+#define	C_KILL		 3
+#define	C_EOF		 4
+#define	C_EOL		 5
+#define	C_EOL2		 6
+#define	C_SWTCH		 7
+#define	C_DSWTCH	 8
+#define	C_ERASE2	 9
+#define	C_START		10
+#define	C_STOP		11
+#define	C_WERASE	12
+#define	C_SUSP		13
+#define	C_DSUSP		14
+#define	C_REPRINT	15
+#define	C_DISCARD	16
+#define	C_LNEXT		17
+#define	C_STATUS	18
+#define	C_PAGE		19
+#define	C_PGOFF		20
+#define	C_KILL2		21
+#define	C_BRK		22
+#define	C_MIN		23
+#define	C_TIME		24
+#define	C_NCC		25
+#define	C_SH(A)		(1 << (A))
+
+/*
+ * Terminal dependend data structures
+ */
+#define	EX_IO	0	/* while we are executing	*/
+#define	ED_IO	1	/* while we are editing		*/
+#define	TS_IO	2	/* new mode from terminal	*/
+#define	QU_IO	2	/* used only for quoted chars	*/
+#define	NN_IO	3	/* The number of entries	*/
+
+#define	MD_INP	0
+#define	MD_OUT	1
+#define	MD_CTL	2
+#define	MD_LIN	3
+#define	MD_CHAR	4
+#define	MD_NN	5
+
+typedef struct {
+	const char	*t_name;
+	unsigned int	 t_setmask;
+	unsigned int	 t_clrmask;
+} ttyperm_t[NN_IO][MD_NN];
+
+typedef unsigned char ttychar_t[NN_IO][C_NCC];
+
+protected int	tty_init(EditLine *);
+protected void	tty_end(EditLine *);
+protected int	tty_stty(EditLine *, int, const char **);
+protected int	tty_rawmode(EditLine *);
+protected int	tty_cookedmode(EditLine *);
+protected int	tty_quotemode(EditLine *);
+protected int	tty_noquotemode(EditLine *);
+protected void	tty_bind_char(EditLine *, int);
+
+typedef struct {
+    ttyperm_t t_t;
+    ttychar_t t_c;
+    struct termios t_ex, t_ed, t_ts;
+    int t_tabs;
+    int t_eight;
+    speed_t t_speed;
+    int t_mode;
+    unsigned char t_vdisable;
+} el_tty_t;
+
+
+#endif /* _h_el_tty */
diff --git a/frontend/libedit/unvis.c b/frontend/libedit/unvis.c
new file mode 100644
index 0000000..8b99122
--- /dev/null
+++ b/frontend/libedit/unvis.c
@@ -0,0 +1,301 @@
+/*	$NetBSD: unvis.c,v 1.28 2005/09/13 01:44:09 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+
+#include <assert.h>
+#ifndef _DIAGASSERT
+#define _DIAGASSERT(x) assert(x)
+#endif
+#include <ctype.h>
+#include <stdio.h>
+#include <vis.h>
+
+#ifdef __weak_alias
+__weak_alias(strunvis,_strunvis)
+#endif
+
+#if !HAVE_VIS
+/*
+ * decode driven by state machine
+ */
+#define	S_GROUND	0	/* haven't seen escape char */
+#define	S_START		1	/* start decoding special sequence */
+#define	S_META		2	/* metachar started (M) */
+#define	S_META1		3	/* metachar more, regular char (-) */
+#define	S_CTRL		4	/* control char started (^) */
+#define	S_OCTAL2	5	/* octal digit 2 */
+#define	S_OCTAL3	6	/* octal digit 3 */
+#define	S_HEX1		7	/* hex digit */
+#define	S_HEX2		8	/* hex digit 2 */
+
+#define	isoctal(c)	(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
+#define xtod(c)		(isdigit(c) ? (c - '0') : ((tolower(c) - 'a') + 10))
+
+/*
+ * unvis - decode characters previously encoded by vis
+ */
+int
+unvis(cp, c, astate, flag)
+	char *cp;
+	int c;
+	int *astate, flag;
+{
+	unsigned char uc = (unsigned char)c;
+
+	_DIAGASSERT(cp != NULL);
+	_DIAGASSERT(astate != NULL);
+
+	if (flag & UNVIS_END) {
+		if (*astate == S_OCTAL2 || *astate == S_OCTAL3
+		    || *astate == S_HEX2) {
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		}
+		return (*astate == S_GROUND ? UNVIS_NOCHAR : UNVIS_SYNBAD);
+	}
+
+	switch (*astate) {
+
+	case S_GROUND:
+		*cp = 0;
+		if (c == '\\') {
+			*astate = S_START;
+			return (0);
+		}
+		if ((flag & VIS_HTTPSTYLE) && c == '%') {
+			*astate = S_HEX1;
+			return (0);
+		}
+		*cp = c;
+		return (UNVIS_VALID);
+
+	case S_START:
+		switch(c) {
+		case '\\':
+			*cp = c;
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case '0': case '1': case '2': case '3':
+		case '4': case '5': case '6': case '7':
+			*cp = (c - '0');
+			*astate = S_OCTAL2;
+			return (0);
+		case 'M':
+			*cp = (char)0200;
+			*astate = S_META;
+			return (0);
+		case '^':
+			*astate = S_CTRL;
+			return (0);
+		case 'n':
+			*cp = '\n';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 'r':
+			*cp = '\r';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 'b':
+			*cp = '\b';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 'a':
+			*cp = '\007';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 'v':
+			*cp = '\v';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 't':
+			*cp = '\t';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 'f':
+			*cp = '\f';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 's':
+			*cp = ' ';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case 'E':
+			*cp = '\033';
+			*astate = S_GROUND;
+			return (UNVIS_VALID);
+		case '\n':
+			/*
+			 * hidden newline
+			 */
+			*astate = S_GROUND;
+			return (UNVIS_NOCHAR);
+		case '$':
+			/*
+			 * hidden marker
+			 */
+			*astate = S_GROUND;
+			return (UNVIS_NOCHAR);
+		}
+		*astate = S_GROUND;
+		return (UNVIS_SYNBAD);
+
+	case S_META:
+		if (c == '-')
+			*astate = S_META1;
+		else if (c == '^')
+			*astate = S_CTRL;
+		else {
+			*astate = S_GROUND;
+			return (UNVIS_SYNBAD);
+		}
+		return (0);
+
+	case S_META1:
+		*astate = S_GROUND;
+		*cp |= c;
+		return (UNVIS_VALID);
+
+	case S_CTRL:
+		if (c == '?')
+			*cp |= 0177;
+		else
+			*cp |= c & 037;
+		*astate = S_GROUND;
+		return (UNVIS_VALID);
+
+	case S_OCTAL2:	/* second possible octal digit */
+		if (isoctal(uc)) {
+			/*
+			 * yes - and maybe a third
+			 */
+			*cp = (*cp << 3) + (c - '0');
+			*astate = S_OCTAL3;
+			return (0);
+		}
+		/*
+		 * no - done with current sequence, push back passed char
+		 */
+		*astate = S_GROUND;
+		return (UNVIS_VALIDPUSH);
+
+	case S_OCTAL3:	/* third possible octal digit */
+		*astate = S_GROUND;
+		if (isoctal(uc)) {
+			*cp = (*cp << 3) + (c - '0');
+			return (UNVIS_VALID);
+		}
+		/*
+		 * we were done, push back passed char
+		 */
+		return (UNVIS_VALIDPUSH);
+
+	case S_HEX1:
+		if (isxdigit(uc)) {
+			*cp = xtod(uc);
+			*astate = S_HEX2;
+			return (0);
+		}
+		/*
+		 * no - done with current sequence, push back passed char
+		 */
+		*astate = S_GROUND;
+		return (UNVIS_VALIDPUSH);
+
+	case S_HEX2:
+		*astate = S_GROUND;
+		if (isxdigit(uc)) {
+			*cp = xtod(uc) | (*cp << 4);
+			return (UNVIS_VALID);
+		}
+		return (UNVIS_VALIDPUSH);
+
+	default:
+		/*
+		 * decoder in unknown state - (probably uninitialized)
+		 */
+		*astate = S_GROUND;
+		return (UNVIS_SYNBAD);
+	}
+}
+
+/*
+ * strunvis - decode src into dst
+ *
+ *	Number of chars decoded into dst is returned, -1 on error.
+ *	Dst is null terminated.
+ */
+
+int
+strunvisx(dst, src, flag)
+	char *dst;
+	const char *src;
+	int flag;
+{
+	char c;
+	char *start = dst;
+	int state = 0;
+
+	_DIAGASSERT(src != NULL);
+	_DIAGASSERT(dst != NULL);
+
+	while ((c = *src++) != '\0') {
+ again:
+		switch (unvis(dst, c, &state, flag)) {
+		case UNVIS_VALID:
+			dst++;
+			break;
+		case UNVIS_VALIDPUSH:
+			dst++;
+			goto again;
+		case 0:
+		case UNVIS_NOCHAR:
+			break;
+		default:
+			return (-1);
+		}
+	}
+	if (unvis(dst, c, &state, UNVIS_END) == UNVIS_VALID)
+		dst++;
+	*dst = '\0';
+	return (dst - start);
+}
+
+int
+strunvis(dst, src)
+	char *dst;
+	const char *src;
+{
+	return strunvisx(dst, src, 0);
+}
+#endif
diff --git a/frontend/libedit/vi.c b/frontend/libedit/vi.c
new file mode 100644
index 0000000..bfcc2a2
--- /dev/null
+++ b/frontend/libedit/vi.c
@@ -0,0 +1,1118 @@
+/*	$NetBSD: vi.c,v 1.27 2006/10/22 07:48:13 mrg Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "sys.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+/*
+ * vi.c: Vi mode commands.
+ */
+#include "el.h"
+
+private el_action_t	cv_action(EditLine *, int);
+private el_action_t	cv_paste(EditLine *, int);
+
+/* cv_action():
+ *	Handle vi actions.
+ */
+private el_action_t
+cv_action(EditLine *el, int c)
+{
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		/* 'cc', 'dd' and (possibly) friends */
+		if (c != el->el_chared.c_vcmd.action)
+			return CC_ERROR;
+
+		if (!(c & YANK))
+			cv_undo(el);
+		cv_yank(el, el->el_line.buffer,
+			    el->el_line.lastchar - el->el_line.buffer);
+		el->el_chared.c_vcmd.action = NOP;
+		el->el_chared.c_vcmd.pos = 0;
+		if (!(c & YANK)) {
+			el->el_line.lastchar = el->el_line.buffer;
+			el->el_line.cursor = el->el_line.buffer;
+		}
+		if (c & INSERT)
+			el->el_map.current = el->el_map.key;
+
+		return (CC_REFRESH);
+	}
+	el->el_chared.c_vcmd.pos = el->el_line.cursor;
+	el->el_chared.c_vcmd.action = c;
+	return (CC_ARGHACK);
+}
+
+/* cv_paste():
+ *	Paste previous deletion before or after the cursor
+ */
+private el_action_t
+cv_paste(EditLine *el, int c)
+{
+	c_kill_t *k = &el->el_chared.c_kill;
+	int len = k->last - k->buf;
+
+	if (k->buf == NULL || len == 0)
+		return (CC_ERROR);
+#ifdef DEBUG_PASTE
+	(void) fprintf(el->el_errfile, "Paste: \"%.*s\"\n", len, k->buf);
+#endif
+
+	cv_undo(el);
+
+	if (!c && el->el_line.cursor < el->el_line.lastchar)
+		el->el_line.cursor++;
+
+	c_insert(el, len);
+	if (el->el_line.cursor + len > el->el_line.lastchar)
+		return (CC_ERROR);
+	(void) memcpy(el->el_line.cursor, k->buf, len +0u);
+
+	return (CC_REFRESH);
+}
+
+
+/* vi_paste_next():
+ *	Vi paste previous deletion to the right of the cursor
+ *	[p]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_paste_next(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	return (cv_paste(el, 0));
+}
+
+
+/* vi_paste_prev():
+ *	Vi paste previous deletion to the left of the cursor
+ *	[P]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_paste_prev(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	return (cv_paste(el, 1));
+}
+
+
+/* vi_prev_big_word():
+ *	Vi move to the previous space delimited word
+ *	[B]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_prev_big_word(EditLine *el, int c)
+{
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return (CC_ERROR);
+
+	el->el_line.cursor = cv_prev_word(el->el_line.cursor,
+	    el->el_line.buffer,
+	    el->el_state.argument,
+	    cv__isWord);
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		cv_delfini(el);
+		return (CC_REFRESH);
+	}
+	return (CC_CURSOR);
+}
+
+
+/* vi_prev_word():
+ *	Vi move to the previous word
+ *	[b]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_prev_word(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return (CC_ERROR);
+
+	el->el_line.cursor = cv_prev_word(el->el_line.cursor,
+	    el->el_line.buffer,
+	    el->el_state.argument,
+	    cv__isword);
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		cv_delfini(el);
+		return (CC_REFRESH);
+	}
+	return (CC_CURSOR);
+}
+
+
+/* vi_next_big_word():
+ *	Vi move to the next space delimited word
+ *	[W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_next_big_word(EditLine *el, int c)
+{
+
+	if (el->el_line.cursor >= el->el_line.lastchar - 1)
+		return (CC_ERROR);
+
+	el->el_line.cursor = cv_next_word(el, el->el_line.cursor,
+	    el->el_line.lastchar, el->el_state.argument, cv__isWord);
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return (CC_REFRESH);
+		}
+	return (CC_CURSOR);
+}
+
+
+/* vi_next_word():
+ *	Vi move to the next word
+ *	[w]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_next_word(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor >= el->el_line.lastchar - 1)
+		return (CC_ERROR);
+
+	el->el_line.cursor = cv_next_word(el, el->el_line.cursor,
+	    el->el_line.lastchar, el->el_state.argument, cv__isword);
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return (CC_REFRESH);
+		}
+	return (CC_CURSOR);
+}
+
+
+/* vi_change_case():
+ *	Vi change case of character under the cursor and advance one character
+ *	[~]
+ */
+protected el_action_t
+vi_change_case(EditLine *el, int c)
+{
+	int i;
+
+	if (el->el_line.cursor >= el->el_line.lastchar)
+		return (CC_ERROR);
+	cv_undo(el);
+	for (i = 0; i < el->el_state.argument; i++) {
+
+		c = *(unsigned char *)el->el_line.cursor;
+		if (isupper(c))
+			*el->el_line.cursor = tolower(c);
+		else if (islower(c))
+			*el->el_line.cursor = toupper(c);
+
+		if (++el->el_line.cursor >= el->el_line.lastchar) {
+			el->el_line.cursor--;
+			re_fastaddc(el);
+			break;
+		}
+		re_fastaddc(el);
+	}
+	return CC_NORM;
+}
+
+
+/* vi_change_meta():
+ *	Vi change prefix command
+ *	[c]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_change_meta(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	/*
+         * Delete with insert == change: first we delete and then we leave in
+         * insert mode.
+         */
+	return (cv_action(el, DELETE | INSERT));
+}
+
+
+/* vi_insert_at_bol():
+ *	Vi enter insert mode at the beginning of line
+ *	[I]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_insert_at_bol(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_line.cursor = el->el_line.buffer;
+	cv_undo(el);
+	el->el_map.current = el->el_map.key;
+	return (CC_CURSOR);
+}
+
+
+/* vi_replace_char():
+ *	Vi replace character under the cursor with the next character typed
+ *	[r]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_replace_char(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor >= el->el_line.lastchar)
+		return CC_ERROR;
+
+	el->el_map.current = el->el_map.key;
+	el->el_state.inputmode = MODE_REPLACE_1;
+	cv_undo(el);
+	return (CC_ARGHACK);
+}
+
+
+/* vi_replace_mode():
+ *	Vi enter replace mode
+ *	[R]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_replace_mode(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_map.current = el->el_map.key;
+	el->el_state.inputmode = MODE_REPLACE;
+	cv_undo(el);
+	return (CC_NORM);
+}
+
+
+/* vi_substitute_char():
+ *	Vi replace character under the cursor and enter insert mode
+ *	[s]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_substitute_char(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	c_delafter(el, el->el_state.argument);
+	el->el_map.current = el->el_map.key;
+	return (CC_REFRESH);
+}
+
+
+/* vi_substitute_line():
+ *	Vi substitute entire line
+ *	[S]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_substitute_line(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	cv_undo(el);
+	cv_yank(el, el->el_line.buffer,
+		    el->el_line.lastchar - el->el_line.buffer);
+	(void) em_kill_line(el, 0);
+	el->el_map.current = el->el_map.key;
+	return (CC_REFRESH);
+}
+
+
+/* vi_change_to_eol():
+ *	Vi change to end of line
+ *	[C]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_change_to_eol(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	cv_undo(el);
+	cv_yank(el, el->el_line.cursor,
+		    el->el_line.lastchar - el->el_line.cursor);
+	(void) ed_kill_line(el, 0);
+	el->el_map.current = el->el_map.key;
+	return (CC_REFRESH);
+}
+
+
+/* vi_insert():
+ *	Vi enter insert mode
+ *	[i]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_insert(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_map.current = el->el_map.key;
+	cv_undo(el);
+	return (CC_NORM);
+}
+
+
+/* vi_add():
+ *	Vi enter insert mode after the cursor
+ *	[a]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_add(EditLine *el, int c __attribute__((__unused__)))
+{
+	int ret;
+
+	el->el_map.current = el->el_map.key;
+	if (el->el_line.cursor < el->el_line.lastchar) {
+		el->el_line.cursor++;
+		if (el->el_line.cursor > el->el_line.lastchar)
+			el->el_line.cursor = el->el_line.lastchar;
+		ret = CC_CURSOR;
+	} else
+		ret = CC_NORM;
+
+	cv_undo(el);
+
+	return (ret);
+}
+
+
+/* vi_add_at_eol():
+ *	Vi enter insert mode at end of line
+ *	[A]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_add_at_eol(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	el->el_map.current = el->el_map.key;
+	el->el_line.cursor = el->el_line.lastchar;
+	cv_undo(el);
+	return (CC_CURSOR);
+}
+
+
+/* vi_delete_meta():
+ *	Vi delete prefix command
+ *	[d]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_delete_meta(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	return (cv_action(el, DELETE));
+}
+
+
+/* vi_end_big_word():
+ *	Vi move to the end of the current space delimited word
+ *	[E]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_end_big_word(EditLine *el, int c)
+{
+
+	if (el->el_line.cursor == el->el_line.lastchar)
+		return (CC_ERROR);
+
+	el->el_line.cursor = cv__endword(el->el_line.cursor,
+	    el->el_line.lastchar, el->el_state.argument, cv__isWord);
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		el->el_line.cursor++;
+		cv_delfini(el);
+		return (CC_REFRESH);
+	}
+	return (CC_CURSOR);
+}
+
+
+/* vi_end_word():
+ *	Vi move to the end of the current word
+ *	[e]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_end_word(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor == el->el_line.lastchar)
+		return (CC_ERROR);
+
+	el->el_line.cursor = cv__endword(el->el_line.cursor,
+	    el->el_line.lastchar, el->el_state.argument, cv__isword);
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		el->el_line.cursor++;
+		cv_delfini(el);
+		return (CC_REFRESH);
+	}
+	return (CC_CURSOR);
+}
+
+
+/* vi_undo():
+ *	Vi undo last change
+ *	[u]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_undo(EditLine *el, int c __attribute__((__unused__)))
+{
+	c_undo_t un = el->el_chared.c_undo;
+
+	if (un.len == -1)
+		return CC_ERROR;
+
+	/* switch line buffer and undo buffer */
+	el->el_chared.c_undo.buf = el->el_line.buffer;
+	el->el_chared.c_undo.len = el->el_line.lastchar - el->el_line.buffer;
+	el->el_chared.c_undo.cursor = el->el_line.cursor - el->el_line.buffer;
+	el->el_line.limit = un.buf + (el->el_line.limit - el->el_line.buffer);
+	el->el_line.buffer = un.buf;
+	el->el_line.cursor = un.buf + un.cursor;
+	el->el_line.lastchar = un.buf + un.len;
+
+	return (CC_REFRESH);
+}
+
+
+/* vi_command_mode():
+ *	Vi enter command mode (use alternative key bindings)
+ *	[<ESC>]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_command_mode(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	/* [Esc] cancels pending action */
+	el->el_chared.c_vcmd.action = NOP;
+	el->el_chared.c_vcmd.pos = 0;
+
+	el->el_state.doingarg = 0;
+
+	el->el_state.inputmode = MODE_INSERT;
+	el->el_map.current = el->el_map.alt;
+#ifdef VI_MOVE
+	if (el->el_line.cursor > el->el_line.buffer)
+		el->el_line.cursor--;
+#endif
+	return (CC_CURSOR);
+}
+
+
+/* vi_zero():
+ *	Vi move to the beginning of line
+ *	[0]
+ */
+protected el_action_t
+vi_zero(EditLine *el, int c)
+{
+
+	if (el->el_state.doingarg)
+		return ed_argument_digit(el, c);
+
+	el->el_line.cursor = el->el_line.buffer;
+	if (el->el_chared.c_vcmd.action != NOP) {
+		cv_delfini(el);
+		return (CC_REFRESH);
+	}
+	return (CC_CURSOR);
+}
+
+
+/* vi_delete_prev_char():
+ * 	Vi move to previous character (backspace)
+ *	[^H] in insert mode only
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_delete_prev_char(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor <= el->el_line.buffer)
+		return (CC_ERROR);
+
+	c_delbefore1(el);
+	el->el_line.cursor--;
+	return (CC_REFRESH);
+}
+
+
+/* vi_list_or_eof():
+ *	Vi list choices for completion or indicate end of file if empty line
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_list_or_eof(EditLine *el, int c)
+{
+
+	if (el->el_line.cursor == el->el_line.lastchar) {
+		if (el->el_line.cursor == el->el_line.buffer) {
+			term_writec(el, c);	/* then do a EOF */
+			return (CC_EOF);
+		} else {
+			/*
+			 * Here we could list completions, but it is an
+			 * error right now
+			 */
+			term_beep(el);
+			return (CC_ERROR);
+		}
+	} else {
+#ifdef notyet
+		re_goto_bottom(el);
+		*el->el_line.lastchar = '\0';	/* just in case */
+		return (CC_LIST_CHOICES);
+#else
+		/*
+		 * Just complain for now.
+		 */
+		term_beep(el);
+		return (CC_ERROR);
+#endif
+	}
+}
+
+
+/* vi_kill_line_prev():
+ *	Vi cut from beginning of line to cursor
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_kill_line_prev(EditLine *el, int c __attribute__((__unused__)))
+{
+	char *kp, *cp;
+
+	cp = el->el_line.buffer;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_line.cursor)
+		*kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+	c_delbefore(el, el->el_line.cursor - el->el_line.buffer);
+	el->el_line.cursor = el->el_line.buffer;	/* zap! */
+	return (CC_REFRESH);
+}
+
+
+/* vi_search_prev():
+ *	Vi search history previous
+ *	[?]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_search_prev(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	return (cv_search(el, ED_SEARCH_PREV_HISTORY));
+}
+
+
+/* vi_search_next():
+ *	Vi search history next
+ *	[/]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_search_next(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	return (cv_search(el, ED_SEARCH_NEXT_HISTORY));
+}
+
+
+/* vi_repeat_search_next():
+ *	Vi repeat current search in the same search direction
+ *	[n]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_repeat_search_next(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_search.patlen == 0)
+		return (CC_ERROR);
+	else
+		return (cv_repeat_srch(el, el->el_search.patdir));
+}
+
+
+/* vi_repeat_search_prev():
+ *	Vi repeat current search in the opposite search direction
+ *	[N]
+ */
+/*ARGSUSED*/
+protected el_action_t
+vi_repeat_search_prev(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	if (el->el_search.patlen == 0)
+		return (CC_ERROR);
+	else
+		return (cv_repeat_srch(el,
+		    el->el_search.patdir == ED_SEARCH_PREV_HISTORY ?
+		    ED_SEARCH_NEXT_HISTORY : ED_SEARCH_PREV_HISTORY));
+}
+
+
+/* vi_next_char():
+ *	Vi move to the character specified next
+ *	[f]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_next_char(EditLine *el, int c __attribute__((__unused__)))
+{
+	return cv_csearch(el, CHAR_FWD, -1, el->el_state.argument, 0);
+}
+
+
+/* vi_prev_char():
+ *	Vi move to the character specified previous
+ *	[F]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_prev_char(EditLine *el, int c __attribute__((__unused__)))
+{
+	return cv_csearch(el, CHAR_BACK, -1, el->el_state.argument, 0);
+}
+
+
+/* vi_to_next_char():
+ *	Vi move up to the character specified next
+ *	[t]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_to_next_char(EditLine *el, int c __attribute__((__unused__)))
+{
+	return cv_csearch(el, CHAR_FWD, -1, el->el_state.argument, 1);
+}
+
+
+/* vi_to_prev_char():
+ *	Vi move up to the character specified previous
+ *	[T]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_to_prev_char(EditLine *el, int c __attribute__((__unused__)))
+{
+	return cv_csearch(el, CHAR_BACK, -1, el->el_state.argument, 1);
+}
+
+
+/* vi_repeat_next_char():
+ *	Vi repeat current character search in the same search direction
+ *	[;]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_repeat_next_char(EditLine *el, int c __attribute__((__unused__)))
+{
+
+	return cv_csearch(el, el->el_search.chadir, el->el_search.chacha,
+		el->el_state.argument, el->el_search.chatflg);
+}
+
+
+/* vi_repeat_prev_char():
+ *	Vi repeat current character search in the opposite search direction
+ *	[,]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_repeat_prev_char(EditLine *el, int c __attribute__((__unused__)))
+{
+	el_action_t r;
+	int dir = el->el_search.chadir;
+
+	r = cv_csearch(el, -dir, el->el_search.chacha,
+		el->el_state.argument, el->el_search.chatflg);
+	el->el_search.chadir = dir;
+	return r;
+}
+
+
+/* vi_match():
+ *	Vi go to matching () {} or []
+ *	[%]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_match(EditLine *el, int c)
+{
+	const char match_chars[] = "()[]{}";
+	char *cp;
+	int delta, i, count;
+	char o_ch, c_ch;
+
+	*el->el_line.lastchar = '\0';		/* just in case */
+
+	i = strcspn(el->el_line.cursor, match_chars);
+	o_ch = el->el_line.cursor[i];
+	if (o_ch == 0)
+		return CC_ERROR;
+	delta = strchr(match_chars, o_ch) - match_chars;
+	c_ch = match_chars[delta ^ 1];
+	count = 1;
+	delta = 1 - (delta & 1) * 2;
+
+	for (cp = &el->el_line.cursor[i]; count; ) {
+		cp += delta;
+		if (cp < el->el_line.buffer || cp >= el->el_line.lastchar)
+			return CC_ERROR;
+		if (*cp == o_ch)
+			count++;
+		else if (*cp == c_ch)
+			count--;
+	}
+
+	el->el_line.cursor = cp;
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		/* NB posix says char under cursor should NOT be deleted
+		   for -ve delta - this is different to netbsd vi. */
+		if (delta > 0)
+			el->el_line.cursor++;
+		cv_delfini(el);
+		return (CC_REFRESH);
+	}
+	return (CC_CURSOR);
+}
+
+/* vi_undo_line():
+ *	Vi undo all changes to line
+ *	[U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_undo_line(EditLine *el, int c)
+{
+
+	cv_undo(el);
+	return hist_get(el);
+}
+
+/* vi_to_column():
+ *	Vi go to specified column
+ *	[|]
+ * NB netbsd vi goes to screen column 'n', posix says nth character
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_to_column(EditLine *el, int c)
+{
+
+	el->el_line.cursor = el->el_line.buffer;
+	el->el_state.argument--;
+	return ed_next_char(el, 0);
+}
+
+/* vi_yank_end():
+ *	Vi yank to end of line
+ *	[Y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_yank_end(EditLine *el, int c)
+{
+
+	cv_yank(el, el->el_line.cursor,
+		el->el_line.lastchar - el->el_line.cursor);
+	return CC_REFRESH;
+}
+
+/* vi_yank():
+ *	Vi yank
+ *	[y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_yank(EditLine *el, int c)
+{
+
+	return cv_action(el, YANK);
+}
+
+/* vi_comment_out():
+ *	Vi comment out current command
+ *	[#]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_comment_out(EditLine *el, int c)
+{
+
+	el->el_line.cursor = el->el_line.buffer;
+	c_insert(el, 1);
+	*el->el_line.cursor = '#';
+	re_refresh(el);
+	return ed_newline(el, 0);
+}
+
+/* vi_alias():
+ *	Vi include shell alias
+ *	[@]
+ * NB: posix implies that we should enter insert mode, however
+ * this is against historical precedent...
+ */
+#ifdef __weak_reference
+extern char *get_alias_text(const char *) __weak_reference(get_alias_text);
+#endif
+protected el_action_t
+/*ARGSUSED*/
+vi_alias(EditLine *el, int c)
+{
+#ifdef __weak_reference
+	char alias_name[3];
+	char *alias_text;
+
+	if (get_alias_text == 0) {
+		return CC_ERROR;
+	}
+
+	alias_name[0] = '_';
+	alias_name[2] = 0;
+	if (el_getc(el, &alias_name[1]) != 1)
+		return CC_ERROR;
+
+	alias_text = get_alias_text(alias_name);
+	if (alias_text != NULL)
+		el_push(el, alias_text);
+	return CC_NORM;
+#else
+	return CC_ERROR;
+#endif
+}
+
+/* vi_to_history_line():
+ *	Vi go to specified history file line.
+ *	[G]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_to_history_line(EditLine *el, int c)
+{
+	int sv_event_no = el->el_history.eventno;
+	el_action_t rval;
+
+
+	if (el->el_history.eventno == 0) {
+		 (void) strncpy(el->el_history.buf, el->el_line.buffer,
+		     EL_BUFSIZ);
+		 el->el_history.last = el->el_history.buf +
+			 (el->el_line.lastchar - el->el_line.buffer);
+	}
+
+	/* Lack of a 'count' means oldest, not 1 */
+	if (!el->el_state.doingarg) {
+		el->el_history.eventno = 0x7fffffff;
+		hist_get(el);
+	} else {
+		/* This is brain dead, all the rest of this code counts
+		 * upwards going into the past.  Here we need count in the
+		 * other direction (to match the output of fc -l).
+		 * I could change the world, but this seems to suffice.
+		 */
+		el->el_history.eventno = 1;
+		if (hist_get(el) == CC_ERROR)
+			return CC_ERROR;
+		el->el_history.eventno = 1 + el->el_history.ev.num 
+					- el->el_state.argument;
+		if (el->el_history.eventno < 0) {
+			el->el_history.eventno = sv_event_no;
+			return CC_ERROR;
+		}
+	}
+	rval = hist_get(el);
+	if (rval == CC_ERROR)
+		el->el_history.eventno = sv_event_no;
+	return rval;
+}
+
+/* vi_histedit():
+ *	Vi edit history line with vi
+ *	[v]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_histedit(EditLine *el, int c)
+{
+	int fd;
+	pid_t pid;
+	int st;
+	char tempfile[] = "/tmp/histedit.XXXXXXXXXX";
+	char *cp;
+
+	if (el->el_state.doingarg) {
+		if (vi_to_history_line(el, 0) == CC_ERROR)
+			return CC_ERROR;
+	}
+
+	fd = mkstemp(tempfile);
+	if (fd < 0)
+		return CC_ERROR;
+	cp = el->el_line.buffer;
+	write(fd, cp, el->el_line.lastchar - cp +0u);
+	write(fd, "\n", 1);
+	pid = fork();
+	switch (pid) {
+	case -1:
+		close(fd);
+		unlink(tempfile);
+		return CC_ERROR;
+	case 0:
+		close(fd);
+		execlp("vi", "vi", tempfile, NULL);
+		exit(0);
+		/*NOTREACHED*/
+	default:
+		while (waitpid(pid, &st, 0) != pid)
+			continue;
+		lseek(fd, 0ll, SEEK_SET);
+		st = read(fd, cp, el->el_line.limit - cp +0u);
+		if (st > 0 && cp[st - 1] == '\n')
+			st--;
+		el->el_line.cursor = cp;
+		el->el_line.lastchar = cp + st;
+		break;
+	}
+
+	close(fd);
+	unlink(tempfile);
+	/* return CC_REFRESH; */
+	return ed_newline(el, 0);
+}
+
+/* vi_history_word():
+ *	Vi append word from previous input line
+ *	[_]
+ * Who knows where this one came from!
+ * '_' in vi means 'entire current line', so 'cc' is a synonym for 'c_'
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_history_word(EditLine *el, int c)
+{
+	const char *wp = HIST_FIRST(el);
+	const char *wep, *wsp;
+	int len;
+	char *cp;
+	const char *lim;
+
+	if (wp == NULL)
+		return CC_ERROR;
+
+	wep = wsp = 0;
+	do {
+		while (isspace((unsigned char)*wp))
+			wp++;
+		if (*wp == 0)
+			break;
+		wsp = wp;
+		while (*wp && !isspace((unsigned char)*wp))
+			wp++;
+		wep = wp;
+	} while ((!el->el_state.doingarg || --el->el_state.argument > 0) && *wp != 0);
+
+	if (wsp == 0 || (el->el_state.doingarg && el->el_state.argument != 0))
+		return CC_ERROR;
+
+	cv_undo(el);
+	len = wep - wsp;
+	if (el->el_line.cursor < el->el_line.lastchar)
+		el->el_line.cursor++;
+	c_insert(el, len + 1);
+	cp = el->el_line.cursor;
+	lim = el->el_line.limit;
+	if (cp < lim)
+		*cp++ = ' ';
+	while (wsp < wep && cp < lim)
+		*cp++ = *wsp++;
+	el->el_line.cursor = cp;
+
+	el->el_map.current = el->el_map.key;
+	return CC_REFRESH;
+}
+
+/* vi_redo():
+ *	Vi redo last non-motion command
+ *	[.]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_redo(EditLine *el, int c)
+{
+	c_redo_t *r = &el->el_chared.c_redo;
+
+	if (!el->el_state.doingarg && r->count) {
+		el->el_state.doingarg = 1;
+		el->el_state.argument = r->count;
+	}
+
+	el->el_chared.c_vcmd.pos = el->el_line.cursor;
+	el->el_chared.c_vcmd.action = r->action;
+	if (r->pos != r->buf) {
+		if (r->pos + 1 > r->lim)
+			/* sanity */
+			r->pos = r->lim - 1;
+		r->pos[0] = 0;
+		el_push(el, r->buf);
+	}
+
+	el->el_state.thiscmd = r->cmd;
+	el->el_state.thisch = r->ch;
+	return  (*el->el_map.func[r->cmd])(el, r->ch);
+}
diff --git a/frontend/libedit/vi.h b/frontend/libedit/vi.h
new file mode 100644
index 0000000..fec33b4
--- /dev/null
+++ b/frontend/libedit/vi.h
@@ -0,0 +1,51 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_vi_c
+#define _h_vi_c
+protected el_action_t	vi_paste_next (EditLine *, int);
+protected el_action_t	vi_paste_prev (EditLine *, int);
+protected el_action_t	vi_prev_big_word (EditLine *, int);
+protected el_action_t	vi_prev_word (EditLine *, int);
+protected el_action_t	vi_next_big_word (EditLine *, int);
+protected el_action_t	vi_next_word (EditLine *, int);
+protected el_action_t	vi_change_case (EditLine *, int);
+protected el_action_t	vi_change_meta (EditLine *, int);
+protected el_action_t	vi_insert_at_bol (EditLine *, int);
+protected el_action_t	vi_replace_char (EditLine *, int);
+protected el_action_t	vi_replace_mode (EditLine *, int);
+protected el_action_t	vi_substitute_char (EditLine *, int);
+protected el_action_t	vi_substitute_line (EditLine *, int);
+protected el_action_t	vi_change_to_eol (EditLine *, int);
+protected el_action_t	vi_insert (EditLine *, int);
+protected el_action_t	vi_add (EditLine *, int);
+protected el_action_t	vi_add_at_eol (EditLine *, int);
+protected el_action_t	vi_delete_meta (EditLine *, int);
+protected el_action_t	vi_end_big_word (EditLine *, int);
+protected el_action_t	vi_end_word (EditLine *, int);
+protected el_action_t	vi_undo (EditLine *, int);
+protected el_action_t	vi_command_mode (EditLine *, int);
+protected el_action_t	vi_zero (EditLine *, int);
+protected el_action_t	vi_delete_prev_char (EditLine *, int);
+protected el_action_t	vi_list_or_eof (EditLine *, int);
+protected el_action_t	vi_kill_line_prev (EditLine *, int);
+protected el_action_t	vi_search_prev (EditLine *, int);
+protected el_action_t	vi_search_next (EditLine *, int);
+protected el_action_t	vi_repeat_search_next (EditLine *, int);
+protected el_action_t	vi_repeat_search_prev (EditLine *, int);
+protected el_action_t	vi_next_char (EditLine *, int);
+protected el_action_t	vi_prev_char (EditLine *, int);
+protected el_action_t	vi_to_next_char (EditLine *, int);
+protected el_action_t	vi_to_prev_char (EditLine *, int);
+protected el_action_t	vi_repeat_next_char (EditLine *, int);
+protected el_action_t	vi_repeat_prev_char (EditLine *, int);
+protected el_action_t	vi_match (EditLine *, int);
+protected el_action_t	vi_undo_line (EditLine *, int);
+protected el_action_t	vi_to_column (EditLine *, int);
+protected el_action_t	vi_yank_end (EditLine *, int);
+protected el_action_t	vi_yank (EditLine *, int);
+protected el_action_t	vi_comment_out (EditLine *, int);
+protected el_action_t	vi_alias (EditLine *, int);
+protected el_action_t	vi_to_history_line (EditLine *, int);
+protected el_action_t	vi_histedit (EditLine *, int);
+protected el_action_t	vi_history_word (EditLine *, int);
+protected el_action_t	vi_redo (EditLine *, int);
+#endif /* _h_vi_c */
diff --git a/frontend/libedit/vis.c b/frontend/libedit/vis.c
new file mode 100644
index 0000000..f864462
--- /dev/null
+++ b/frontend/libedit/vis.c
@@ -0,0 +1,404 @@
+/*	$NetBSD: vis.c,v 1.35 2006/08/28 20:42:12 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*-
+ * Copyright (c) 1999, 2005 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* AIX requires this to be the first thing in the file.  */
+#if defined (_AIX) && !defined (__GNUC__)
+ #pragma alloca
+#endif
+
+#include <config.h>
+
+#ifdef __GNUC__
+# undef alloca
+# define alloca(n) __builtin_alloca (n)
+#else
+# ifdef HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifndef _AIX
+extern char *alloca ();
+#  endif
+# endif
+#endif
+
+#include <sys/types.h>
+
+#include <assert.h>
+#ifndef _DIAGASSERT
+#define _DIAGASSERT(x) assert(x)
+#endif
+#include <vis.h>
+#include <stdlib.h>
+
+#ifdef __weak_alias
+__weak_alias(strsvis,_strsvis)
+__weak_alias(strsvisx,_strsvisx)
+__weak_alias(strvis,_strvis)
+__weak_alias(strvisx,_strvisx)
+__weak_alias(svis,_svis)
+__weak_alias(vis,_vis)
+#endif
+
+#if !HAVE_VIS || !HAVE_SVIS
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#undef BELL
+#define BELL '\a'
+
+#define isoctal(c)	(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
+#define iswhite(c)	(c == ' ' || c == '\t' || c == '\n')
+#define issafe(c)	(c == '\b' || c == BELL || c == '\r')
+#define xtoa(c)		"0123456789abcdef"[c]
+
+#define MAXEXTRAS	5
+
+
+#define MAKEEXTRALIST(flag, extra, orig_str)				      \
+do {									      \
+	const char *orig = orig_str;					      \
+	const char *o = orig;						      \
+	char *e;							      \
+	while (*o++)							      \
+		continue;						      \
+	extra = malloc((size_t)((o - orig) + MAXEXTRAS));		      \
+	if (!extra) break;						      \
+	for (o = orig, e = extra; (*e++ = *o++) != '\0';)		      \
+		continue;						      \
+	e--;								      \
+	if (flag & VIS_SP) *e++ = ' ';					      \
+	if (flag & VIS_TAB) *e++ = '\t';				      \
+	if (flag & VIS_NL) *e++ = '\n';					      \
+	if ((flag & VIS_NOSLASH) == 0) *e++ = '\\';			      \
+	*e = '\0';							      \
+} while (/*CONSTCOND*/0)
+
+
+/*
+ * This is HVIS, the macro of vis used to HTTP style (RFC 1808)
+ */
+#define HVIS(dst, c, flag, nextc, extra)				      \
+do									      \
+	if (!isascii(c) || !isalnum(c) || strchr("$-_.+!*'(),", c) != NULL) { \
+		*dst++ = '%';						      \
+		*dst++ = xtoa(((unsigned int)c >> 4) & 0xf);		      \
+		*dst++ = xtoa((unsigned int)c & 0xf);			      \
+	} else {							      \
+		SVIS(dst, c, flag, nextc, extra);			      \
+	}								      \
+while (/*CONSTCOND*/0)
+
+/*
+ * This is SVIS, the central macro of vis.
+ * dst:	      Pointer to the destination buffer
+ * c:	      Character to encode
+ * flag:      Flag word
+ * nextc:     The character following 'c'
+ * extra:     Pointer to the list of extra characters to be
+ *	      backslash-protected.
+ */
+#define SVIS(dst, c, flag, nextc, extra)				      \
+do {									      \
+	int isextra;							      \
+	isextra = strchr(extra, c) != NULL;				      \
+	if (!isextra && isascii(c) && (isgraph(c) || iswhite(c) ||	      \
+	    ((flag & VIS_SAFE) && issafe(c)))) {			      \
+		*dst++ = c;						      \
+		break;							      \
+	}								      \
+	if (flag & VIS_CSTYLE) {					      \
+		switch (c) {						      \
+		case '\n':						      \
+			*dst++ = '\\'; *dst++ = 'n';			      \
+			continue;					      \
+		case '\r':						      \
+			*dst++ = '\\'; *dst++ = 'r';			      \
+			continue;					      \
+		case '\b':						      \
+			*dst++ = '\\'; *dst++ = 'b';			      \
+			continue;					      \
+		case BELL:						      \
+			*dst++ = '\\'; *dst++ = 'a';			      \
+			continue;					      \
+		case '\v':						      \
+			*dst++ = '\\'; *dst++ = 'v';			      \
+			continue;					      \
+		case '\t':						      \
+			*dst++ = '\\'; *dst++ = 't';			      \
+			continue;					      \
+		case '\f':						      \
+			*dst++ = '\\'; *dst++ = 'f';			      \
+			continue;					      \
+		case ' ':						      \
+			*dst++ = '\\'; *dst++ = 's';			      \
+			continue;					      \
+		case '\0':						      \
+			*dst++ = '\\'; *dst++ = '0';			      \
+			if (isoctal(nextc)) {				      \
+				*dst++ = '0';				      \
+				*dst++ = '0';				      \
+			}						      \
+			continue;					      \
+		default:						      \
+			if (isgraph(c)) {				      \
+				*dst++ = '\\'; *dst++ = c;		      \
+				continue;				      \
+			}						      \
+		}							      \
+	}								      \
+	if (isextra || ((c & 0177) == ' ') || (flag & VIS_OCTAL)) {	      \
+		*dst++ = '\\';						      \
+		*dst++ = (u_char)(((u_int32_t)(u_char)c >> 6) & 03) + '0';    \
+		*dst++ = (u_char)(((u_int32_t)(u_char)c >> 3) & 07) + '0';    \
+		*dst++ =			     (c	      & 07) + '0';    \
+	} else {							      \
+		if ((flag & VIS_NOSLASH) == 0) *dst++ = '\\';		      \
+		if (c & 0200) {						      \
+			c &= 0177; *dst++ = 'M';			      \
+		}							      \
+		if (iscntrl(c)) {					      \
+			*dst++ = '^';					      \
+			if (c == 0177)					      \
+				*dst++ = '?';				      \
+			else						      \
+				*dst++ = c + '@';			      \
+		} else {						      \
+			*dst++ = '-'; *dst++ = c;			      \
+		}							      \
+	}								      \
+} while (/*CONSTCOND*/0)
+
+
+/*
+ * svis - visually encode characters, also encoding the characters
+ *	  pointed to by `extra'
+ */
+char *
+svis(char *dst, int c, int flag, int nextc, const char *extra)
+{
+	char *nextra = NULL;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(extra != NULL);
+	MAKEEXTRALIST(flag, nextra, extra);
+	if (!nextra) {
+		*dst = '\0';		/* can't create nextra, return "" */
+		return dst;
+	}
+	if (flag & VIS_HTTPSTYLE)
+		HVIS(dst, c, flag, nextc, nextra);
+	else
+		SVIS(dst, c, flag, nextc, nextra);
+	free(nextra);
+	*dst = '\0';
+	return dst;
+}
+
+
+/*
+ * strsvis, strsvisx - visually encode characters from src into dst
+ *
+ *	Extra is a pointer to a \0-terminated list of characters to
+ *	be encoded, too. These functions are useful e. g. to
+ *	encode strings in such a way so that they are not interpreted
+ *	by a shell.
+ *
+ *	Dst must be 4 times the size of src to account for possible
+ *	expansion.  The length of dst, not including the trailing NULL,
+ *	is returned.
+ *
+ *	Strsvisx encodes exactly len bytes from src into dst.
+ *	This is useful for encoding a block of data.
+ */
+int
+strsvis(char *dst, const char *csrc, int flag, const char *extra)
+{
+	int c;
+	char *start;
+	char *nextra = NULL;
+	const unsigned char *src = (const unsigned char *)csrc;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(src != NULL);
+	_DIAGASSERT(extra != NULL);
+	MAKEEXTRALIST(flag, nextra, extra);
+	if (!nextra) {
+		*dst = '\0';		/* can't create nextra, return "" */
+		return 0;
+	}
+	if (flag & VIS_HTTPSTYLE) {
+		for (start = dst; (c = *src++) != '\0'; /* empty */)
+			HVIS(dst, c, flag, *src, nextra);
+	} else {
+		for (start = dst; (c = *src++) != '\0'; /* empty */)
+			SVIS(dst, c, flag, *src, nextra);
+	}
+	free(nextra);
+	*dst = '\0';
+	return (dst - start);
+}
+
+
+int
+strsvisx(char *dst, const char *csrc, size_t len, int flag, const char *extra)
+{
+	unsigned char c;
+	char *start;
+	char *nextra = NULL;
+	const unsigned char *src = (const unsigned char *)csrc;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(src != NULL);
+	_DIAGASSERT(extra != NULL);
+	MAKEEXTRALIST(flag, nextra, extra);
+	if (! nextra) {
+		*dst = '\0';		/* can't create nextra, return "" */
+		return 0;
+	}
+
+	if (flag & VIS_HTTPSTYLE) {
+		for (start = dst; len > 0; len--) {
+			c = *src++;
+			HVIS(dst, c, flag, len ? *src : '\0', nextra);
+		}
+	} else {
+		for (start = dst; len > 0; len--) {
+			c = *src++;
+			SVIS(dst, c, flag, len ? *src : '\0', nextra);
+		}
+	}
+	free(nextra);
+	*dst = '\0';
+	return (dst - start);
+}
+#endif
+
+#if !HAVE_VIS
+/*
+ * vis - visually encode characters
+ */
+char *
+vis(char *dst, int c, int flag, int nextc)
+{
+	char *extra = NULL;
+	unsigned char uc = (unsigned char)c;
+
+	_DIAGASSERT(dst != NULL);
+
+	MAKEEXTRALIST(flag, extra, "");
+	if (! extra) {
+		*dst = '\0';		/* can't create extra, return "" */
+		return dst;
+	}
+	if (flag & VIS_HTTPSTYLE)
+		HVIS(dst, uc, flag, nextc, extra);
+	else
+		SVIS(dst, uc, flag, nextc, extra);
+	free(extra);
+	*dst = '\0';
+	return dst;
+}
+
+
+/*
+ * strvis, strvisx - visually encode characters from src into dst
+ *
+ *	Dst must be 4 times the size of src to account for possible
+ *	expansion.  The length of dst, not including the trailing NULL,
+ *	is returned.
+ *
+ *	Strvisx encodes exactly len bytes from src into dst.
+ *	This is useful for encoding a block of data.
+ */
+int
+strvis(char *dst, const char *src, int flag)
+{
+	char *extra = NULL;
+	int rv;
+
+	MAKEEXTRALIST(flag, extra, "");
+	if (!extra) {
+		*dst = '\0';		/* can't create extra, return "" */
+		return 0;
+	}
+	rv = strsvis(dst, src, flag, extra);
+	free(extra);
+	return rv;
+}
+
+
+int
+strvisx(char *dst, const char *src, size_t len, int flag)
+{
+	char *extra = NULL;
+	int rv;
+
+	MAKEEXTRALIST(flag, extra, "");
+	if (!extra) {
+		*dst = '\0';		/* can't create extra, return "" */
+		return 0;
+	}
+	rv = strsvisx(dst, src, len, flag, extra);
+	free(extra);
+	return rv;
+}
+#endif
diff --git a/frontend/libedit/vis.h b/frontend/libedit/vis.h
new file mode 100644
index 0000000..7baba2d
--- /dev/null
+++ b/frontend/libedit/vis.h
@@ -0,0 +1,89 @@
+/*	$NetBSD: vis.h,v 1.16 2005/09/13 01:44:32 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)vis.h	8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef _VIS_H_
+#define	_VIS_H_
+
+#include <config.h>
+
+/*
+ * to select alternate encoding format
+ */
+#define	VIS_OCTAL	0x01	/* use octal \ddd format */
+#define	VIS_CSTYLE	0x02	/* use \[nrft0..] where appropiate */
+
+/*
+ * to alter set of characters encoded (default is to encode all
+ * non-graphic except space, tab, and newline).
+ */
+#define	VIS_SP		0x04	/* also encode space */
+#define	VIS_TAB		0x08	/* also encode tab */
+#define	VIS_NL		0x10	/* also encode newline */
+#define	VIS_WHITE	(VIS_SP | VIS_TAB | VIS_NL)
+#define	VIS_SAFE	0x20	/* only encode "unsafe" characters */
+
+/*
+ * other
+ */
+#define	VIS_NOSLASH	0x40	/* inhibit printing '\' */
+#define	VIS_HTTPSTYLE	0x80	/* http-style escape % HEX HEX */
+
+/*
+ * unvis return codes
+ */
+#define	UNVIS_VALID	 1	/* character valid */
+#define	UNVIS_VALIDPUSH	 2	/* character valid, push back passed char */
+#define	UNVIS_NOCHAR	 3	/* valid sequence, no character produced */
+#define	UNVIS_SYNBAD	-1	/* unrecognized escape sequence */
+#define	UNVIS_ERROR	-2	/* decoder in unknown state (unrecoverable) */
+
+/*
+ * unvis flags
+ */
+#define	UNVIS_END	1	/* no more characters */
+
+__BEGIN_DECLS
+char	*vis(char *, int, int, int);
+char	*svis(char *, int, int, int, const char *);
+int	strvis(char *, const char *, int);
+int	strsvis(char *, const char *, int, const char *);
+int	strvisx(char *, const char *, size_t, int);
+int	strsvisx(char *, const char *, size_t, int, const char *);
+int	strunvis(char *, const char *);
+int	strunvisx(char *, const char *, int);
+#ifndef __LIBC12_SOURCE__
+int	unvis(char *, int, int *, int);
+#endif
+__END_DECLS
+
+#endif /* !_VIS_H_ */
diff --git a/interface/Makefile.in b/interface/Makefile.in
index be0e73b..46bbd29 100644
--- a/interface/Makefile.in
+++ b/interface/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/languages/Language.cs b/languages/Language.cs
index 3f4d8bd..d24ac7d 100644
--- a/languages/Language.cs
+++ b/languages/Language.cs
@@ -13,7 +13,7 @@ namespace Mono.Debugger.Languages
 			get;
 		}
 
-		internal abstract Process Process {
+		internal abstract ProcessServant Process {
 			get;
 		}
 
diff --git a/languages/Makefile.in b/languages/Makefile.in
index f748388..24fe936 100644
--- a/languages/Makefile.in
+++ b/languages/Makefile.in
@@ -129,6 +129,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/languages/mono/Makefile.in b/languages/mono/Makefile.in
index 96e994b..cec3cac 100644
--- a/languages/mono/Makefile.in
+++ b/languages/mono/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/languages/mono/MonoClassInfo.cs b/languages/mono/MonoClassInfo.cs
index 41d614c..c1238cc 100644
--- a/languages/mono/MonoClassInfo.cs
+++ b/languages/mono/MonoClassInfo.cs
@@ -42,8 +42,8 @@ namespace Mono.Debugger.Languages.Mono
 				throw new InternalError ();
 
 			Cecil.TypeDefinition typedef;
-			typedef = (Cecil.TypeDefinition) file.ModuleDefinition.LookupToken (
-				new Cecil.MetadataToken (Cecil.TokenType.TypeDef, token & 0x00ffffff));
+			typedef = (Cecil.TypeDefinition) file.ModuleDefinition.LookupByToken (
+				Cecil.Metadata.TokenType.TypeDef, token & 0x00ffffff);
 			if (typedef == null)
 				throw new InternalError ();
 
diff --git a/languages/mono/MonoClassType.cs b/languages/mono/MonoClassType.cs
index db1606e..847fa5a 100644
--- a/languages/mono/MonoClassType.cs
+++ b/languages/mono/MonoClassType.cs
@@ -204,7 +204,7 @@ namespace Mono.Debugger.Languages.Mono
 				return class_info;
 
 			if (class_info == null) {
-				int token = type.MetadataToken.ToInt32 ();
+				int token = (int) type.MetadataToken.ToUInt ();
 				class_info = file.LookupClassInfo (target, token);
 			}
 
diff --git a/languages/mono/MonoDebuggerSupport.cs b/languages/mono/MonoDebuggerSupport.cs
index f16404e..f2cb252 100644
--- a/languages/mono/MonoDebuggerSupport.cs
+++ b/languages/mono/MonoDebuggerSupport.cs
@@ -11,13 +11,13 @@ namespace Mono.Debugger.Languages.Mono
 	{
 		public static int GetMethodToken (Cecil.MethodDefinition method)
 		{
-			return method.MetadataToken.ToInt32 ();
+			return (int) (method.MetadataToken.TokenType + method.MetadataToken.RID);
 		}
 
 		public static Cecil.MethodDefinition GetMethod (Cecil.ModuleDefinition module, int token)
 		{
-			return (Cecil.MethodDefinition) module.LookupToken (
-				new Cecil.MetadataToken (Cecil.TokenType.Method, token & 0xffffff));
+			return (Cecil.MethodDefinition) module.LookupByToken (
+				Cecil.Metadata.TokenType.Method, token & 0xffffff);
 		}
 	}
 }
diff --git a/languages/mono/MonoFunctionType.cs b/languages/mono/MonoFunctionType.cs
index 9457313..a82170b 100644
--- a/languages/mono/MonoFunctionType.cs
+++ b/languages/mono/MonoFunctionType.cs
@@ -34,7 +34,7 @@ namespace Mono.Debugger.Languages.Mono
 				rtype = mdef.DeclaringType;
 				has_return_type = true;
 			} else {
-				rtype = mdef.ReturnType;
+				rtype = mdef.ReturnType.ReturnType;
 				has_return_type = rtype.FullName != "System.Void";
 			}
 			return_type = klass.File.MonoLanguage.LookupMonoType (rtype);
@@ -52,7 +52,7 @@ namespace Mono.Debugger.Languages.Mono
 
 		internal static string GetMethodName (Cecil.MethodDefinition mdef)
 		{
-			var gen_params = mdef.GenericParameters;
+			Cecil.GenericParameterCollection gen_params = mdef.GenericParameters;
 			if ((gen_params == null) || (gen_params.Count == 0))
 				return mdef.Name;
 			else
diff --git a/languages/mono/MonoFundamentalType.cs b/languages/mono/MonoFundamentalType.cs
index 10962d7..1e9b009 100644
--- a/languages/mono/MonoFundamentalType.cs
+++ b/languages/mono/MonoFundamentalType.cs
@@ -31,104 +31,104 @@ namespace Mono.Debugger.Languages.Mono
 			case FundamentalKind.Boolean:
 				klass = corlib.MonoLanguage.MetadataHelper.GetBooleanClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Boolean"),
+					corlib, corlib.ModuleDefinition.Types ["System.Boolean"],
 					"bool", kind, 1);
 				break;
 
 			case FundamentalKind.Char:
 				klass = corlib.MonoLanguage.MetadataHelper.GetCharClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Char"),
+					corlib, corlib.ModuleDefinition.Types ["System.Char"],
 					"char", kind, 2);
 				break;
 
 			case FundamentalKind.SByte:
 				klass = corlib.MonoLanguage.MetadataHelper.GetSByteClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.SByte"),
+					corlib, corlib.ModuleDefinition.Types ["System.SByte"],
 					"sbyte", kind, 1);
 				break;
 
 			case FundamentalKind.Byte:
 				klass = corlib.MonoLanguage.MetadataHelper.GetByteClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Byte"),
+					corlib, corlib.ModuleDefinition.Types ["System.Byte"],
 					"byte", kind, 1);
 				break;
 
 			case FundamentalKind.Int16:
 				klass = corlib.MonoLanguage.MetadataHelper.GetInt16Class (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Int16"),
+					corlib, corlib.ModuleDefinition.Types ["System.Int16"],
 					"short", kind, 2);
 				break;
 
 			case FundamentalKind.UInt16:
 				klass = corlib.MonoLanguage.MetadataHelper.GetUInt16Class (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.UInt16"),
+					corlib, corlib.ModuleDefinition.Types ["System.UInt16"],
 					"ushort", kind, 2);
 				break;
 
 			case FundamentalKind.Int32:
 				klass = corlib.MonoLanguage.MetadataHelper.GetInt32Class (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Int32"),
+					corlib, corlib.ModuleDefinition.Types ["System.Int32"],
 					"int", kind, 4);
 				break;
 
 			case FundamentalKind.UInt32:
 				klass = corlib.MonoLanguage.MetadataHelper.GetUInt32Class (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.UInt32"),
+					corlib, corlib.ModuleDefinition.Types ["System.UInt32"],
 					"uint", kind, 4);
 				break;
 
 			case FundamentalKind.Int64:
 				klass = corlib.MonoLanguage.MetadataHelper.GetInt64Class (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Int64"),
+					corlib, corlib.ModuleDefinition.Types ["System.Int64"],
 					"long", kind, 8);
 				break;
 
 			case FundamentalKind.UInt64:
 				klass = corlib.MonoLanguage.MetadataHelper.GetUInt64Class (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.UInt64"),
+					corlib, corlib.ModuleDefinition.Types ["System.UInt64"],
 					"ulong", kind, 8);
 				break;
 
 			case FundamentalKind.Single:
 				klass = corlib.MonoLanguage.MetadataHelper.GetSingleClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Single"),
+					corlib, corlib.ModuleDefinition.Types ["System.Single"],
 					"float", kind, 4);
 				break;
 
 			case FundamentalKind.Double:
 				klass = corlib.MonoLanguage.MetadataHelper.GetDoubleClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Double"),
+					corlib, corlib.ModuleDefinition.Types ["System.Double"],
 					"double", kind, 8);
 				break;
 
 			case FundamentalKind.IntPtr:
 				klass = corlib.MonoLanguage.MetadataHelper.GetIntPtrClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.IntPtr"),
+					corlib, corlib.ModuleDefinition.Types ["System.IntPtr"],
 					"System.IntPtr", kind, memory.TargetMemoryInfo.TargetAddressSize);
 				break;
 
 			case FundamentalKind.UIntPtr:
 				klass = corlib.MonoLanguage.MetadataHelper.GetUIntPtrClass (memory);
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.UIntPtr"),
+					corlib, corlib.ModuleDefinition.Types ["System.UIntPtr"],
 					"System.UIntPtr", kind, memory.TargetMemoryInfo.TargetAddressSize);
 				break;
 
 			case FundamentalKind.Decimal:
 				fundamental = new MonoFundamentalType (
-					corlib, corlib.ModuleDefinition.GetType ("System.Decimal"),
+					corlib, corlib.ModuleDefinition.Types ["System.Decimal"],
 					"decimal", kind, Marshal.SizeOf (typeof (Decimal)));
 				return fundamental;
 
diff --git a/languages/mono/MonoMember.cs b/languages/mono/MonoMember.cs
index 8695654..958d7fc 100644
--- a/languages/mono/MonoMember.cs
+++ b/languages/mono/MonoMember.cs
@@ -124,7 +124,7 @@ namespace Mono.Debugger.Languages.Mono
 			case Cecil.MethodAttributes.Family:
 			case Cecil.MethodAttributes.FamANDAssem:
 				return TargetMemberAccessibility.Protected;
-			case Cecil.MethodAttributes.Assembly:
+			case Cecil.MethodAttributes.Assem:
 			case Cecil.MethodAttributes.FamORAssem:
 				return TargetMemberAccessibility.Internal;
 			default:
diff --git a/languages/mono/MonoObjectType.cs b/languages/mono/MonoObjectType.cs
index 017bbec..94ab2da 100644
--- a/languages/mono/MonoObjectType.cs
+++ b/languages/mono/MonoObjectType.cs
@@ -28,7 +28,7 @@ namespace Mono.Debugger.Languages.Mono
 			int object_size = 2 * memory.TargetMemoryInfo.TargetAddressSize;
 
 			MonoObjectType type = new MonoObjectType (
-				corlib, corlib.ModuleDefinition.GetType ("System.Object"),
+				corlib, corlib.ModuleDefinition.Types ["System.Object"],
 				object_size);
 
 			TargetAddress klass = corlib.MonoLanguage.MetadataHelper.GetObjectClass (memory);
diff --git a/languages/mono/MonoStringType.cs b/languages/mono/MonoStringType.cs
index 43523be..98f6b0b 100644
--- a/languages/mono/MonoStringType.cs
+++ b/languages/mono/MonoStringType.cs
@@ -26,7 +26,7 @@ namespace Mono.Debugger.Languages.Mono
 			int object_size = 2 * memory.TargetMemoryInfo.TargetAddressSize;
 
 			MonoStringType type = new MonoStringType (
-				corlib, corlib.ModuleDefinition.GetType ("System.String"),
+				corlib, corlib.ModuleDefinition.Types ["System.String"],
 				object_size, object_size + 4);
 
 			TargetAddress klass = corlib.MonoLanguage.MetadataHelper.GetStringClass (memory);
diff --git a/languages/mono/MonoStructType.cs b/languages/mono/MonoStructType.cs
index bf1f717..8703bf4 100644
--- a/languages/mono/MonoStructType.cs
+++ b/languages/mono/MonoStructType.cs
@@ -115,8 +115,13 @@ namespace Mono.Debugger.Languages.Mono
 					function_hash.Add (method, func);
 				}
 
+				foreach (Cecil.MethodDefinition method in TypeDef.Constructors) {
+					MonoFunctionType func = new MonoFunctionType (this, method);
+					function_hash.Add (method, func);
+				}
+
 				int num_methods = 0;
-				foreach (Cecil.MethodDefinition method in GetMethods (TypeDef, false)) {
+				foreach (Cecil.MethodDefinition method in TypeDef.Methods) {
 					if ((method.Attributes & Cecil.MethodAttributes.SpecialName) != 0)
 						continue;
 					num_methods++;
@@ -125,7 +130,7 @@ namespace Mono.Debugger.Languages.Mono
 				methods = new MonoMethodInfo [num_methods];
 
 				int pos = 0;
-				foreach (Cecil.MethodDefinition method in GetMethods (TypeDef, false)) {
+				foreach (Cecil.MethodDefinition method in TypeDef.Methods) {
 					if ((method.Attributes & Cecil.MethodAttributes.SpecialName) != 0)
 						continue;
 					methods [pos] = MonoMethodInfo.Create (this, pos, method);
@@ -134,27 +139,16 @@ namespace Mono.Debugger.Languages.Mono
 			}
 		}
 
-		static IEnumerable<Cecil.MethodDefinition> GetMethods (Cecil.TypeDefinition type, bool constructor)
-		{
-			foreach (var method in type.Methods) {
-				if (constructor && method.IsConstructor)
-					yield return method;
-
-				if (!constructor && !method.IsConstructor)
-					yield return method;
-			}
-		}
-
 		void get_constructors ()
 		{
 			lock (this) {
 				if (constructors != null)
 					return;
 
-				var ctors = new List<Cecil.MethodDefinition> (GetMethods (TypeDef, true));
+				constructors = new MonoMethodInfo [TypeDef.Constructors.Count];
 
-				for (int i = 0; i < ctors.Count; i++) {
-					Cecil.MethodDefinition method = ctors [i];
+				for (int i = 0; i < constructors.Length; i++) {
+					Cecil.MethodDefinition method = TypeDef.Constructors [i];
 					constructors [i] = MonoMethodInfo.Create (this, i, method);
 				}
 			}
diff --git a/languages/mono/MonoVoidType.cs b/languages/mono/MonoVoidType.cs
index 9f80438..cd435e4 100644
--- a/languages/mono/MonoVoidType.cs
+++ b/languages/mono/MonoVoidType.cs
@@ -22,7 +22,7 @@ namespace Mono.Debugger.Languages.Mono
 		public static MonoVoidType Create (MonoSymbolFile corlib, TargetMemoryAccess memory)
 		{
 			MonoVoidType type = new MonoVoidType (
-				corlib, corlib.ModuleDefinition.GetType ("System.Void"));
+				corlib, corlib.ModuleDefinition.Types ["System.Void"]);
 
 			TargetAddress klass = corlib.MonoLanguage.MetadataHelper.GetVoidClass (memory);
 			type.create_type (memory, klass);
diff --git a/languages/native/Makefile.in b/languages/native/Makefile.in
index ac3d319..563e073 100644
--- a/languages/native/Makefile.in
+++ b/languages/native/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/languages/native/NativeLanguage.cs b/languages/native/NativeLanguage.cs
index 5d75340..2ddb755 100644
--- a/languages/native/NativeLanguage.cs
+++ b/languages/native/NativeLanguage.cs
@@ -9,7 +9,7 @@ namespace Mono.Debugger.Languages.Native
 {
 	internal class NativeLanguage : Language
 	{
-		Process process;
+		ProcessServant process;
 		OperatingSystemBackend os;
 		TargetFundamentalType unsigned_type;
 		TargetFundamentalType integer_type;
@@ -22,7 +22,7 @@ namespace Mono.Debugger.Languages.Native
 
 		Hashtable type_hash;
 
-		public NativeLanguage (Process process, OperatingSystemBackend os, TargetInfo info)
+		public NativeLanguage (ProcessServant process, OperatingSystemBackend os, TargetInfo info)
 		{
 			this.process = process;
 			this.os = os;
@@ -51,7 +51,7 @@ namespace Mono.Debugger.Languages.Native
 			get { return false; }
 		}
 
-		internal override Process Process {
+		internal override ProcessServant Process {
 			get { return process; }
 		}
 
diff --git a/languages/native/NativeStructObject.cs b/languages/native/NativeStructObject.cs
index 1c861eb..c923cf0 100644
--- a/languages/native/NativeStructObject.cs
+++ b/languages/native/NativeStructObject.cs
@@ -14,7 +14,7 @@ namespace Mono.Debugger.Languages.Native
 
 		internal override TargetClassObject GetParentObject (TargetMemoryAccess target)
 		{
-			return type.GetParentObject (target, Location);
+			return null;
 		}
 
 		internal override TargetClassObject GetCurrentObject (TargetMemoryAccess target)
diff --git a/languages/native/NativeStructType.cs b/languages/native/NativeStructType.cs
index ec2d77d..72ea4c2 100644
--- a/languages/native/NativeStructType.cs
+++ b/languages/native/NativeStructType.cs
@@ -74,26 +74,12 @@ namespace Mono.Debugger.Languages.Native
 		}
 	}
 
-	internal abstract class NativeBaseInfo
-	{
-		public readonly NativeStructType BaseType;
-
-		public NativeBaseInfo (NativeStructType base_type)
-		{
-			this.BaseType = base_type;
-		}
-
-		public abstract TargetLocation GetBaseLocation (TargetMemoryAccess memory,
-								TargetLocation location);
-	}
-
 	internal class NativeStructType : TargetClassType
 	{
 		string name;
 		int size;
 		NativeFieldInfo[] fields;
 		NativeClass class_info;
-		NativeBaseInfo base_info;
 
 		internal NativeStructType (Language language, string name, int size)
 			: base (language, TargetObjectKind.Struct)
@@ -109,15 +95,6 @@ namespace Mono.Debugger.Languages.Native
 			this.fields = fields;
 		}
 
-		internal NativeStructType (Language language, string name, int size,
-					   NativeBaseInfo base_info)
-			: base (language, base_info != null ? TargetObjectKind.Class : TargetObjectKind.Struct)
-		{
-			this.name = name;
-			this.size = size;
-			this.base_info = base_info;
-		}
-
 		public override bool HasClassType {
 			get { return true; }
 		}
@@ -131,15 +108,12 @@ namespace Mono.Debugger.Languages.Native
 		}
 
 		public override bool HasParent {
-			get { return base_info != null; }
+			get { return false; }
 		}
 
 		internal override TargetClassType GetParentType (TargetMemoryAccess target)
 		{
-			if (!HasParent)
-				throw new InvalidOperationException ();
-
-			return base_info.BaseType;
+			throw new InvalidOperationException ();
 		}
 
 		public override Module Module {
@@ -259,14 +233,5 @@ namespace Mono.Debugger.Languages.Native
 			// field.Type.SetObject (field_loc, obj);
 			throw new NotImplementedException ();
 		}
-
-		internal NativeStructObject GetParentObject (TargetMemoryAccess target, TargetLocation location)
-		{
-			if (!HasParent)
-				throw new InvalidOperationException ();
-
-			location = base_info.GetBaseLocation (target, location);
-			return new NativeStructObject (base_info.BaseType, location);
-		}
 	}
 }
diff --git a/symbolwriter/Makefile.in b/symbolwriter/Makefile.in
index 828ff06..81909c3 100644
--- a/symbolwriter/Makefile.in
+++ b/symbolwriter/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/symbolwriter/MdbSymbolReader.cs b/symbolwriter/MdbSymbolReader.cs
index dbb9cf1..ed52c1d 100644
--- a/symbolwriter/MdbSymbolReader.cs
+++ b/symbolwriter/MdbSymbolReader.cs
@@ -174,8 +174,8 @@ namespace Mono.Debugger.SymbolWriter
 				if (method == null)
 					throw new MonoSymbolFileException ("Cannot get method {0}.", i+1);
 
-				Cecil.MethodDefinition mdef = (Cecil.MethodDefinition) Assembly.MainModule.LookupToken (
-					new Cecil.MetadataToken (Cecil.TokenType.Method, method.Token & 0xffffff));
+				Cecil.MethodDefinition mdef = (Cecil.MethodDefinition) Assembly.MainModule.LookupByToken (
+					Cecil.Metadata.TokenType.Method, method.Token & 0xffffff);
 				if ((mdef == null) || (mdef.Body == null))
 					throw new MonoSymbolFileException ("Method {0} (token {1:x}) not found in assembly.",
 									   method.Index, method.Token);
@@ -215,8 +215,8 @@ namespace Mono.Debugger.SymbolWriter
 				if (method == null)
 					throw new MonoSymbolFileException ("Cannot get method {0}.", i+1);
 
-				Cecil.MethodDefinition mdef = (Cecil.MethodDefinition) Assembly.MainModule.LookupToken (
-					new Cecil.MetadataToken (Cecil.TokenType.Method, method.Token & 0xffffff));
+				Cecil.MethodDefinition mdef = (Cecil.MethodDefinition) Assembly.MainModule.LookupByToken (
+					Cecil.Metadata.TokenType.Method, method.Token & 0xffffff);
 				if ((mdef == null) || (mdef.Body == null))
 					throw new MonoSymbolFileException ("Method {0} (token {1:x}) not found in assembly.",
 									   method.Index, method.Token);
@@ -328,7 +328,7 @@ namespace Mono.Debugger.SymbolWriter
 
 		protected static string GetTypeSignature (Cecil.TypeReference t)
 		{
-			Cecil.ByReferenceType rtype = t as Cecil.ByReferenceType;
+			Cecil.ReferenceType rtype = t as Cecil.ReferenceType;
 			if (rtype != null)
 				return GetTypeSignature (rtype.ElementType) + "&";
 
@@ -440,8 +440,8 @@ namespace Mono.Debugger.SymbolWriter
 
 		protected void CheckMethod (MethodEntry method)
 		{
-			Cecil.MethodDefinition mdef = (Cecil.MethodDefinition) Assembly.MainModule.LookupToken (
-				new Cecil.MetadataToken (Cecil.TokenType.Method, method.Token & 0xffffff));
+			Cecil.MethodDefinition mdef = (Cecil.MethodDefinition) Assembly.MainModule.LookupByToken (
+				Cecil.Metadata.TokenType.Method, method.Token & 0xffffff);
 			if ((mdef == null) || (mdef.Body == null))
 				throw new MonoSymbolFileException ("Method {0} (token {1:x}) not found in assembly.",
 								   method.Index, method.Token);
@@ -551,8 +551,8 @@ namespace Mono.Debugger.SymbolWriter
 			Mono.Cecil.AssemblyDefinition asm;
 
 			try {
-				asm = Mono.Cecil.AssemblyDefinition.ReadAssembly (filename);
-				file = MonoSymbolFile.ReadSymbolFile (asm.MainModule, filename + ".mdb");
+				asm = Mono.Cecil.AssemblyFactory.GetAssembly (filename);
+				file = MonoSymbolFile.ReadSymbolFile (asm, filename + ".mdb");
 			} catch (Exception ex) {
 				Console.WriteLine ("Can't read {0}: {1}", filename, ex.Message);
 				return -1;
diff --git a/symbolwriter/MonoSymbolFile.cs b/symbolwriter/MonoSymbolFile.cs
index bd2920f..96ace3b 100644
--- a/symbolwriter/MonoSymbolFile.cs
+++ b/symbolwriter/MonoSymbolFile.cs
@@ -449,22 +449,16 @@ namespace Mono.CompilerServices.SymbolWriter
 		}
 
 #if CECIL
-		protected MonoSymbolFile (string filename, Mono.Cecil.ModuleDefinition module)
-			: this (filename)
+		protected MonoSymbolFile (string filename, Mono.Cecil.AssemblyDefinition assembly) : this (filename)
 		{
-			CheckGuidMatch (module.Mvid, filename, module.FullyQualifiedName);
-		}
+			Guid mvid = assembly.MainModule.Mvid;
 
-		public static MonoSymbolFile ReadSymbolFile (Mono.Cecil.ModuleDefinition module)
-		{
-			return ReadSymbolFile (module, module.FullyQualifiedName);
+			CheckGuidMatch (mvid, filename, assembly.MainModule.Image.FileInformation.FullName);
 		}
 
-		public static MonoSymbolFile ReadSymbolFile (Mono.Cecil.ModuleDefinition module, string filename)
+		public static MonoSymbolFile ReadSymbolFile (Mono.Cecil.AssemblyDefinition assembly, string filename)
 		{
-			string name = filename + ".mdb";
-
-			return new MonoSymbolFile (name, module);
+			return new MonoSymbolFile (filename, assembly);
 		}
 #else
 		protected MonoSymbolFile (string filename, Assembly assembly) : this (filename)
diff --git a/sysdeps/Makefile.am b/sysdeps/Makefile.am
deleted file mode 100644
index 017026f..0000000
--- a/sysdeps/Makefile.am
+++ /dev/null
@@ -1 +0,0 @@
-SUBDIRS = bfd server
diff --git a/sysdeps/Makefile.in b/sysdeps/Makefile.in
deleted file mode 100644
index 30683fe..0000000
--- a/sysdeps/Makefile.in
+++ /dev/null
@@ -1,525 +0,0 @@
-# Makefile.in generated by automake 1.10.1 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
- at SET_MAKE@
-VPATH = @srcdir@
-pkgdatadir = $(datadir)/@PACKAGE@
-pkglibdir = $(libdir)/@PACKAGE@
-pkgincludedir = $(includedir)/@PACKAGE@
-am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
-install_sh_DATA = $(install_sh) -c -m 644
-install_sh_PROGRAM = $(install_sh) -c
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-INSTALL_HEADER = $(INSTALL_DATA)
-transform = $(program_transform_name)
-NORMAL_INSTALL = :
-PRE_INSTALL = :
-POST_INSTALL = :
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-am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
-	$(top_srcdir)/configure.in
-am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
-	$(ACLOCAL_M4)
-mkinstalldirs = $(install_sh) -d
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-CONFIG_CLEAN_FILES =
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-	installcheck-recursive installdirs-recursive pdf-recursive \
-	ps-recursive uninstall-recursive
-RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
-  distclean-recursive maintainer-clean-recursive
-ETAGS = etags
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-TARGET_MONODIS = @TARGET_MONODIS@
-VERSION = @VERSION@
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-	@for dep in $?; do \
-	  case '$(am__configure_deps)' in \
-	    *$$dep*) \
-	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
-		&& exit 0; \
-	      exit 1;; \
-	  esac; \
-	done; \
-	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu  sysdeps/Makefile'; \
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-Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
-	@case '$?' in \
-	  *config.status*) \
-	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
-	  *) \
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-# To change the values of `make' variables: instead of editing Makefiles,
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deleted file mode 100644
index 9407209..0000000
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-x86_64_linux_vec_defines = -DHAVE_bfd_elf64_x86_64_vec -DHAVE_bfd_elf32_i386_vec -DHAVE_i386linux_vec -DHAVE_bfd_efi_app_ia32_vec -DHAVE_bfd_elf64_little_generic_vec -DHAVE_bfd_elf64_big_generic_vec -DHAVE_bfd_elf32_little_generic_vec -DHAVE_bfd_elf32_big_generic_vec
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- at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_FALSE at BFD_BACKEND = $(i386_linux_backend)
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- at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_FALSE at TDEFAULTS = -DDEFAULT_VECTOR=bfd_elf32_i386_vec -DSELECT_VECS='&bfd_elf32_i386_vec,&i386linux_vec,&bfd_efi_app_ia32_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec,&i386pe_vec,&i386pei_vec' -DSELECT_ARCHITECTURES='&bfd_i386_arch' $(i386_linux_vec_defines)
- at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_TRUE at TDEFAULTS = -DDEFAULT_VECTOR=mach_o_be_vec -DSELECT_VECS='&mach_o_be_vec,&mach_o_le_vec,&mach_o_fat_vec,&pef_vec,&pef_xlib_vec,&sym_vec' -DSELECT_ARCHITECTURES='&bfd_i386_arch' $(i386_mach_vec_defines)
- at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_TRUE at TDEFAULTS = -DDEFAULT_VECTOR=bfd_elf64_x86_64_vec -DSELECT_VECS='&bfd_elf64_x86_64_vec,&bfd_elf32_i386_vec,&i386linux_vec,&bfd_efi_app_ia32_vec,&bfd_elf64_little_generic_vec,&bfd_elf64_big_generic_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec' -DSELECT_ARCHITECTURES='&bfd_i386_arch' $(x86_64_linux_vec_defines)
- at BFD_TARGET_POWERPC_TRUE@TDEFAULTS = -DDEFAULT_VECTOR=mach_o_be_vec -DSELECT_VECS='&mach_o_be_vec,&mach_o_le_vec,&mach_o_fat_vec,&pef_vec,&pef_xlib_vec,&sym_vec,&bfd_elf32_i386_vec,&i386linux_vec,&bfd_efi_app_ia32_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec,&i386pe_vec,&i386pei_vec' -DSELECT_ARCHITECTURES='&bfd_powerpc_arch,&bfd_rs6000_arch,&bfd_i386_arch' $(powerpc_vec_defines) $(i386_linux_vec_defines)
- at BFD_TARGET_POWERPC_FALSE@@BFD_TARGET_X86_64_FALSE@@BFD_TARGET_X86_MACH_FALSE at bfd_cflags = -DTRAD_CORE
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- at am__fastdepCC_TRUE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libmonodebuggerserver_la-darwin-thread-db.lo -MD -MP -MF $(DEPDIR)/libmonodebuggerserver_la-darwin-thread-db.Tpo -c -o libmonodebuggerserver_la-darwin-thread-db.lo `test -f 'darwin-thread-db.c' || echo '$(srcdir)/'`darwin-thread-db.c
- at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/libmonodebuggerserver_la-darwin-thread-db.Tpo $(DEPDIR)/libmonodebuggerserver_la-darwin-thread-db.Plo
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='darwin-thread-db.c' object='libmonodebuggerserver_la-darwin-thread-db.lo' libtool=yes @AMDEPBACKSLASH@
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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-
-libmonodebuggerserver_la-breakpoints.lo: breakpoints.c
- at am__fastdepCC_TRUE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libmonodebuggerserver_la-breakpoints.lo -MD -MP -MF $(DEPDIR)/libmonodebuggerserver_la-breakpoints.Tpo -c -o libmonodebuggerserver_la-breakpoints.lo `test -f 'breakpoints.c' || echo '$(srcdir)/'`breakpoints.c
- at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/libmonodebuggerserver_la-breakpoints.Tpo $(DEPDIR)/libmonodebuggerserver_la-breakpoints.Plo
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='breakpoints.c' object='libmonodebuggerserver_la-breakpoints.lo' libtool=yes @AMDEPBACKSLASH@
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
- at am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libmonodebuggerserver_la-breakpoints.lo `test -f 'breakpoints.c' || echo '$(srcdir)/'`breakpoints.c
-
-libmonodebuggerserver_la-libgtop-glue.lo: libgtop-glue.c
- at am__fastdepCC_TRUE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libmonodebuggerserver_la-libgtop-glue.lo -MD -MP -MF $(DEPDIR)/libmonodebuggerserver_la-libgtop-glue.Tpo -c -o libmonodebuggerserver_la-libgtop-glue.lo `test -f 'libgtop-glue.c' || echo '$(srcdir)/'`libgtop-glue.c
- at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/libmonodebuggerserver_la-libgtop-glue.Tpo $(DEPDIR)/libmonodebuggerserver_la-libgtop-glue.Plo
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='libgtop-glue.c' object='libmonodebuggerserver_la-libgtop-glue.lo' libtool=yes @AMDEPBACKSLASH@
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
- at am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libmonodebuggerserver_la-libgtop-glue.lo `test -f 'libgtop-glue.c' || echo '$(srcdir)/'`libgtop-glue.c
-
-libmonodebuggerserver_la-i386-arch.lo: i386-arch.c
- at am__fastdepCC_TRUE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libmonodebuggerserver_la-i386-arch.lo -MD -MP -MF $(DEPDIR)/libmonodebuggerserver_la-i386-arch.Tpo -c -o libmonodebuggerserver_la-i386-arch.lo `test -f 'i386-arch.c' || echo '$(srcdir)/'`i386-arch.c
- at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/libmonodebuggerserver_la-i386-arch.Tpo $(DEPDIR)/libmonodebuggerserver_la-i386-arch.Plo
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='i386-arch.c' object='libmonodebuggerserver_la-i386-arch.lo' libtool=yes @AMDEPBACKSLASH@
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
- at am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libmonodebuggerserver_la-i386-arch.lo `test -f 'i386-arch.c' || echo '$(srcdir)/'`i386-arch.c
-
-libmonodebuggerserver_la-x86_64-arch.lo: x86_64-arch.c
- at am__fastdepCC_TRUE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libmonodebuggerserver_la-x86_64-arch.lo -MD -MP -MF $(DEPDIR)/libmonodebuggerserver_la-x86_64-arch.Tpo -c -o libmonodebuggerserver_la-x86_64-arch.lo `test -f 'x86_64-arch.c' || echo '$(srcdir)/'`x86_64-arch.c
- at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/libmonodebuggerserver_la-x86_64-arch.Tpo $(DEPDIR)/libmonodebuggerserver_la-x86_64-arch.Plo
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='x86_64-arch.c' object='libmonodebuggerserver_la-x86_64-arch.lo' libtool=yes @AMDEPBACKSLASH@
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
- at am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libmonodebuggerserver_la-x86_64-arch.lo `test -f 'x86_64-arch.c' || echo '$(srcdir)/'`x86_64-arch.c
-
-libmonodebuggerserver_la-x86-linux-ptrace.lo: x86-linux-ptrace.c
- at am__fastdepCC_TRUE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libmonodebuggerserver_la-x86-linux-ptrace.lo -MD -MP -MF $(DEPDIR)/libmonodebuggerserver_la-x86-linux-ptrace.Tpo -c -o libmonodebuggerserver_la-x86-linux-ptrace.lo `test -f 'x86-linux-ptrace.c' || echo '$(srcdir)/'`x86-linux-ptrace.c
- at am__fastdepCC_TRUE@	mv -f $(DEPDIR)/libmonodebuggerserver_la-x86-linux-ptrace.Tpo $(DEPDIR)/libmonodebuggerserver_la-x86-linux-ptrace.Plo
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	source='x86-linux-ptrace.c' object='libmonodebuggerserver_la-x86-linux-ptrace.lo' libtool=yes @AMDEPBACKSLASH@
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
- at am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmonodebuggerserver_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libmonodebuggerserver_la-x86-linux-ptrace.lo `test -f 'x86-linux-ptrace.c' || echo '$(srcdir)/'`x86-linux-ptrace.c
-
-mostlyclean-libtool:
-	-rm -f *.lo
-
-clean-libtool:
-	-rm -rf .libs _libs
-
-ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
-	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
-	unique=`for i in $$list; do \
-	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
-	  done | \
-	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
-	      END { if (nonempty) { for (i in files) print i; }; }'`; \
-	mkid -fID $$unique
-tags: TAGS
-
-TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
-		$(TAGS_FILES) $(LISP)
-	tags=; \
-	here=`pwd`; \
-	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
-	unique=`for i in $$list; do \
-	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
-	  done | \
-	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
-	      END { if (nonempty) { for (i in files) print i; }; }'`; \
-	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
-	  test -n "$$unique" || unique=$$empty_fix; \
-	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
-	    $$tags $$unique; \
-	fi
-ctags: CTAGS
-CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
-		$(TAGS_FILES) $(LISP)
-	tags=; \
-	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
-	unique=`for i in $$list; do \
-	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
-	  done | \
-	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
-	      END { if (nonempty) { for (i in files) print i; }; }'`; \
-	test -z "$(CTAGS_ARGS)$$tags$$unique" \
-	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
-	     $$tags $$unique
-
-GTAGS:
-	here=`$(am__cd) $(top_builddir) && pwd` \
-	  && cd $(top_srcdir) \
-	  && gtags -i $(GTAGS_ARGS) $$here
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-distclean-tags:
-	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
-
-distdir: $(DISTFILES)
-	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	list='$(DISTFILES)'; \
-	  dist_files=`for file in $$list; do echo $$file; done | \
-	  sed -e "s|^$$srcdirstrip/||;t" \
-	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
-	case $$dist_files in \
-	  */*) $(MKDIR_P) `echo "$$dist_files" | \
-			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
-			   sort -u` ;; \
-	esac; \
-	for file in $$dist_files; do \
-	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
-	  if test -d $$d/$$file; then \
-	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
-	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
-	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
-	    fi; \
-	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
-	  else \
-	    test -f $(distdir)/$$file \
-	    || cp -p $$d/$$file $(distdir)/$$file \
-	    || exit 1; \
-	  fi; \
-	done
-check-am: all-am
-check: check-am
-all-am: Makefile $(LTLIBRARIES)
-installdirs:
-	for dir in "$(DESTDIR)$(libdir)"; do \
-	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
-	done
-install: install-am
-install-exec: install-exec-am
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-uninstall: uninstall-am
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-	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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-	  `test -z '$(STRIP)' || \
-	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
-mostlyclean-generic:
-
-clean-generic:
-	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
-
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-	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-
-maintainer-clean-generic:
-	@echo "This command is intended for maintainers to use"
-	@echo "it deletes files that may require special tools to rebuild."
-clean: clean-am
-
-clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
-	clean-noinstLTLIBRARIES mostlyclean-am
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-distclean: distclean-am
-	-rm -rf ./$(DEPDIR)
-	-rm -f Makefile
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-	distclean-tags
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-	mostlyclean-libtool
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-# Tell versions [3.59,3.63) of GNU make to not export all variables.
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-.NOEXPORT:
diff --git a/sysdeps/server/library.c b/sysdeps/server/library.c
deleted file mode 100644
index 18782d0..0000000
--- a/sysdeps/server/library.c
+++ /dev/null
@@ -1,517 +0,0 @@
-#include <config.h>
-#include <server.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#if defined(__linux__) || defined(__FreeBSD__)
-#include <sys/poll.h>
-#include <sys/select.h>
-#endif
-#include <errno.h>
-#include <stdio.h>
-
-#if defined(__POWERPC__)
-extern InferiorVTable powerpc_darwin_inferior;
-InferiorVTable *global_vtable = &powerpc_darwin_inferior;
-#elif defined(WIN32)
-extern InferiorVTable i386_windows_inferior;
-static InferiorVTable *global_vtable = &i386_windows_inferior;
-#else
-extern InferiorVTable i386_ptrace_inferior;
-static InferiorVTable *global_vtable = &i386_ptrace_inferior;
-#endif
-
-ServerHandle *
-mono_debugger_server_create_inferior (BreakpointManager *breakpoint_manager)
-{
-	return global_vtable->create_inferior (breakpoint_manager);
-}
-
-guint32
-mono_debugger_server_get_current_pid (void)
-{
-	return global_vtable->get_current_pid ();
-}
-
-guint64
-mono_debugger_server_get_current_thread (void)
-{
-	return global_vtable->get_current_thread ();
-}
-
-ServerCapabilities
-mono_debugger_server_get_capabilities (void)
-{
-	return global_vtable->get_capabilities ();
-}
-
-ServerType
-mono_debugger_server_get_server_type (void)
-{
-	return global_vtable->get_server_type ();
-}
-
-void
-mono_debugger_server_io_thread_main (IOThreadData *io_data, ChildOutputFunc func)
-{
-	(global_vtable->io_thread_main) (io_data, func);
-}
-
-ServerCommandError
-mono_debugger_server_spawn (ServerHandle *handle, const gchar *working_directory,
-			    const gchar **argv, const gchar **envp, gboolean redirect_fds,
-			    gint *child_pid, IOThreadData **io_data, gchar **error)
-{
-	if (!global_vtable->spawn)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->spawn) (handle, working_directory, argv, envp, redirect_fds,
-					 child_pid, io_data, error);
-}
-
-ServerCommandError
-mono_debugger_server_initialize_process (ServerHandle *handle)
-{
-	if (!global_vtable->initialize_process)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->initialize_process) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_initialize_thread (ServerHandle *handle, guint32 pid, gboolean wait)
-{
-	if (!global_vtable->initialize_thread)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->initialize_thread) (handle, pid, wait);
-}
-
-ServerCommandError
-mono_debugger_server_attach (ServerHandle *handle, guint32 pid)
-{
-	if (!global_vtable->attach)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->attach) (handle, pid);
-}
-
-void
-mono_debugger_server_finalize (ServerHandle *handle)
-{
-	(* global_vtable->finalize) (handle);
-}
-
-void
-mono_debugger_server_global_init (void)
-{
-	(* global_vtable->global_init) ();
-}
-
-guint32
-mono_debugger_server_global_wait (guint32 *status)
-{
-	return (* global_vtable->global_wait) (status);
-}
-
-ServerStatusMessageType
-mono_debugger_server_dispatch_event (ServerHandle *handle, guint32 status, guint64 *arg,
-				     guint64 *data1, guint64 *data2, guint32 *opt_data_size,
-				     gpointer *opt_data)
-{
-	return (*global_vtable->dispatch_event) (
-		handle, status, arg, data1, data2, opt_data_size, opt_data);
-}
-
-ServerStatusMessageType
-mono_debugger_server_dispatch_simple (guint32 status, guint32 *arg)
-{
-	return (*global_vtable->dispatch_simple) (status, arg);
-}
-
-ServerCommandError
-mono_debugger_server_get_target_info (guint32 *target_int_size, guint32 *target_long_size,
-				      guint32 *target_address_size, guint32 *is_bigendian)
-{
-	if (!global_vtable->get_target_info)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_target_info) (
-		target_int_size, target_long_size, target_address_size, is_bigendian);
-}
-
-ServerCommandError
-mono_debugger_server_get_frame (ServerHandle *handle, StackFrame *frame)
-{
-	if (!global_vtable->get_frame)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_frame) (handle, frame);
-}
-
-ServerCommandError
-mono_debugger_server_current_insn_is_bpt (ServerHandle *handle, guint32 *is_breakpoint)
-{
-	if (!global_vtable->current_insn_is_bpt)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->current_insn_is_bpt) (handle, is_breakpoint);
-}
-
-ServerCommandError
-mono_debugger_server_step (ServerHandle *handle)
-{
-	if (!global_vtable->step)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->step) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_continue (ServerHandle *handle)
-{
-	if (!global_vtable->run)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->run) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_resume (ServerHandle *handle)
-{
-	if (!global_vtable->resume)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->resume) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_detach (ServerHandle *handle)
-{
-	if (!global_vtable->detach)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->detach) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_peek_word (ServerHandle *handle, guint64 start, guint64 *word)
-{
-	if (!global_vtable->peek_word)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->peek_word) (handle, start, word);
-}
-
-ServerCommandError
-mono_debugger_server_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer data)
-{
-	if (!global_vtable->read_memory)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->read_memory) (handle, start, size, data);
-}
-
-ServerCommandError
-mono_debugger_server_write_memory (ServerHandle *handle, guint64 start, guint32 size, gconstpointer data)
-{
-	if (!global_vtable->write_memory)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->write_memory) (handle, start, size, data);
-}
-
-ServerCommandError
-mono_debugger_server_call_method (ServerHandle *handle, guint64 method_address,
-				  guint64 method_argument1, guint64 method_argument2,
-				  guint64 callback_argument)
-{
-	if (!global_vtable->call_method)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->call_method) (
-		handle, method_address, method_argument1, method_argument2,
-		callback_argument);
-}
-
-ServerCommandError
-mono_debugger_server_call_method_1 (ServerHandle *handle, guint64 method_address,
-				    guint64 method_argument, guint64 data_argument,
-				    guint64 data_argument2, const gchar *string_argument,
-				    guint64 callback_argument)
-{
-	if (!global_vtable->call_method_1)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->call_method_1) (
-		handle, method_address, method_argument, data_argument,
-		data_argument2, string_argument, callback_argument);
-}
-
-ServerCommandError
-mono_debugger_server_call_method_2 (ServerHandle *handle, guint64 method_address,
-				    guint32 data_size, gconstpointer data_buffer,
-				    guint64 callback_argument)
-{
-	if (!global_vtable->call_method_2)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->call_method_2) (
-		handle, method_address, data_size, data_buffer, callback_argument);
-}
-
-ServerCommandError
-mono_debugger_server_call_method_3 (ServerHandle *handle, guint64 method_address,
-				    guint64 method_argument, guint64 address_argument,
-				    guint32 blob_size, gconstpointer blob_data,
-				    guint64 callback_argument)
-{
-	if (!global_vtable->call_method_2)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->call_method_3) (
-		handle, method_address, method_argument, address_argument, blob_size,
-		blob_data, callback_argument);
-}
-
-ServerCommandError
-mono_debugger_server_call_method_invoke (ServerHandle *handle, guint64 invoke_method,
-					 guint64 method_argument, guint32 num_params,
-					 guint32 blob_size, guint64 *param_data,
-					 gint32 *offset_data, gconstpointer blob_data,
-					 guint64 callback_argument, gboolean debug)
-{
-	if (!global_vtable->call_method_invoke)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->call_method_invoke) (
-		handle, invoke_method, method_argument, num_params, blob_size,
-		param_data, offset_data, blob_data, callback_argument, debug);
-}
-
-ServerCommandError
-mono_debugger_server_execute_instruction (ServerHandle *handle, const guint8 *instruction,
-					  guint32 insn_size, gboolean update_ip)
-{
-	if (!global_vtable->execute_instruction)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->execute_instruction) (
-		handle, instruction, insn_size, update_ip);
-}
-
-ServerCommandError
-mono_debugger_server_mark_rti_frame (ServerHandle *handle)
-{
-	if (!global_vtable->mark_rti_frame)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->mark_rti_frame) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_abort_invoke (ServerHandle *handle, guint64 rti_id)
-{
-	if (!global_vtable->abort_invoke)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->abort_invoke) (handle, rti_id);
-}
-
-ServerCommandError
-mono_debugger_server_insert_breakpoint (ServerHandle *handle, guint64 address, guint32 *breakpoint)
-{
-	if (!global_vtable->insert_breakpoint)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->insert_breakpoint) (handle, address, breakpoint);
-}
-
-ServerCommandError
-mono_debugger_server_insert_hw_breakpoint (ServerHandle *handle, guint32 type, guint32 *idx,
-					   guint64 address, guint32 *breakpoint)
-{
-	if (!global_vtable->insert_hw_breakpoint)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->insert_hw_breakpoint) (
-		handle, type, idx, address, breakpoint);
-}
-
-ServerCommandError
-mono_debugger_server_remove_breakpoint (ServerHandle *handle, guint32 breakpoint)
-{
-	if (!global_vtable->remove_breakpoint)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->remove_breakpoint) (handle, breakpoint);
-}
-
-ServerCommandError
-mono_debugger_server_enable_breakpoint (ServerHandle *handle, guint32 breakpoint)
-{
-	if (!global_vtable->enable_breakpoint)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->enable_breakpoint) (handle, breakpoint);
-}
-
-ServerCommandError
-mono_debugger_server_disable_breakpoint (ServerHandle *handle, guint32 breakpoint)
-{
-	if (!global_vtable->disable_breakpoint)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->disable_breakpoint) (handle, breakpoint);
-}
-
-ServerCommandError
-mono_debugger_server_get_registers (ServerHandle *handle, guint64 *values)
-{
-	if (!global_vtable->get_registers)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_registers) (handle, values);
-}
-
-ServerCommandError
-mono_debugger_server_set_registers (ServerHandle *handle, guint64 *values)
-{
-	if (!global_vtable->set_registers)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->set_registers) (handle, values);
-}
-
-ServerCommandError
-mono_debugger_server_stop (ServerHandle *handle)
-{
-	if (!global_vtable->stop)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->stop) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_stop_and_wait (ServerHandle *handle, guint32 *status)
-{
-	if (!global_vtable->stop_and_wait)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->stop_and_wait) (handle, status);
-}
-
-ServerCommandError
-mono_debugger_server_set_signal (ServerHandle *handle, guint32 sig, guint32 send_it)
-{
-	if (!global_vtable->set_signal)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->set_signal) (handle, sig, send_it);
-}
-
-ServerCommandError
-mono_debugger_server_get_pending_signal  (ServerHandle *handle, guint32 *signal)
-{
-	if (!global_vtable->get_pending_signal)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_pending_signal) (handle, signal);
-}
-
-ServerCommandError
-mono_debugger_server_kill (ServerHandle *handle)
-{
-	return (* global_vtable->kill) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_get_signal_info (ServerHandle *handle, SignalInfo **sinfo)
-{
-	*sinfo = NULL;
-
-	if (!global_vtable->get_signal_info)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_signal_info) (handle, sinfo);
-
-}
-
-void
-mono_debugger_server_set_runtime_info (ServerHandle *handle, MonoRuntimeInfo *mono_runtime)
-{
-	if (global_vtable->set_runtime_info)
-		(* global_vtable->set_runtime_info) (handle, mono_runtime);
-}
-
-ServerCommandError
-mono_debugger_server_get_threads (ServerHandle *handle, guint32 *count, guint32 **threads)
-{
-	if (!global_vtable->get_threads)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_threads) (handle, count, threads);
-}
-
-ServerCommandError
-mono_debugger_server_get_application (ServerHandle *handle, gchar **exe_file, gchar **cwd,
-				      guint32 *nargs, gchar ***cmdline_args)
-{
-	if (!global_vtable->get_application)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_application) (handle, exe_file, cwd, nargs, cmdline_args);
-}
-
-ServerCommandError
-mono_debugger_server_detach_after_fork (ServerHandle *handle)
-{
-	if (!global_vtable->detach_after_fork)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->detach_after_fork) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_push_registers (ServerHandle *handle, guint64 *new_rsp)
-{
-	if (!global_vtable->push_registers)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->push_registers) (handle, new_rsp);
-}
-
-ServerCommandError
-mono_debugger_server_pop_registers (ServerHandle *handle)
-{
-	if (!global_vtable->pop_registers)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->pop_registers) (handle);
-}
-
-ServerCommandError
-mono_debugger_server_get_callback_frame (ServerHandle *handle, guint64 stack_pointer,
-					 gboolean exact_match, CallbackInfo *info)
-{
-	if (!global_vtable->get_callback_frame)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->get_callback_frame) (
-		handle, stack_pointer, exact_match, info);
-}
-
-ServerCommandError
-mono_debugger_server_restart_notification (ServerHandle *handle)
-{
-	if (!global_vtable->restart_notification)
-		return COMMAND_ERROR_NOT_IMPLEMENTED;
-
-	return (* global_vtable->restart_notification) (handle);
-}
-
-void
-mono_debugger_server_get_registers_from_core_file (guint64 *values, const guint8 *buffer)
-{
-	(* global_vtable->get_registers_from_core_file) (values, buffer);
-}
diff --git a/sysdeps/server/server.h b/sysdeps/server/server.h
deleted file mode 100644
index 3a0fdd2..0000000
--- a/sysdeps/server/server.h
+++ /dev/null
@@ -1,728 +0,0 @@
-#ifndef __MONO_DEBUGGER_SERVER_H__
-#define __MONO_DEBUGGER_SERVER_H__
-
-#include <breakpoints.h>
-#include <signal.h>
-#include <glib.h>
-
-G_BEGIN_DECLS
-
-#ifdef __GNUC__
-#define MONO_ZERO_LEN_ARRAY 0
-#else
-#define MONO_ZERO_LEN_ARRAY 1
-#endif
-
-#define MONO_DEBUGGER_REMOTE_VERSION		1
-#define MONO_DEBUGGER_REMOTE_MAGIC		0x36885fe4
-
-/*
- * Keep in sync with TargetExceptionType in classes/TargetException.cs.
- */
-typedef enum {
-	COMMAND_ERROR_NONE = 0,
-	COMMAND_ERROR_UNKNOWN_ERROR,
-	COMMAND_ERROR_INTERNAL_ERROR,
-	COMMAND_ERROR_NO_TARGET,
-	COMMAND_ERROR_ALREADY_HAVE_TARGET,
-	COMMAND_ERROR_CANNOT_START_TARGET,
-	COMMAND_ERROR_NOT_STOPPED,
-	COMMAND_ERROR_ALREADY_STOPPED,
-	COMMAND_ERROR_RECURSIVE_CALL,
-	COMMAND_ERROR_NO_SUCH_BREAKPOINT,
-	COMMAND_ERROR_NO_SUCH_REGISTER,
-	COMMAND_ERROR_DR_OCCUPIED,
-	COMMAND_ERROR_MEMORY_ACCESS,
-	COMMAND_ERROR_NOT_IMPLEMENTED,
-	COMMAND_ERROR_IO_ERROR,
-	COMMAND_ERROR_NO_CALLBACK_FRAME,
-	COMMAND_ERROR_PERMISSION_DENIED
-} ServerCommandError;
-
-typedef enum {
-	MESSAGE_NONE,
-	MESSAGE_UNKNOWN_ERROR = 1,
-	MESSAGE_CHILD_EXITED = 2,
-	MESSAGE_CHILD_STOPPED,
-	MESSAGE_CHILD_SIGNALED,
-	MESSAGE_CHILD_CALLBACK,
-	MESSAGE_CHILD_CALLBACK_COMPLETED,
-	MESSAGE_CHILD_HIT_BREAKPOINT,
-	MESSAGE_CHILD_MEMORY_CHANGED,
-	MESSAGE_CHILD_CREATED_THREAD,
-	MESSAGE_CHILD_FORKED,
-	MESSAGE_CHILD_EXECD,
-	MESSAGE_CHILD_CALLED_EXIT,
-	MESSAGE_CHILD_NOTIFICATION,
-	MESSAGE_CHILD_INTERRUPTED,
-	MESSAGE_RUNTIME_INVOKE_DONE,
-	MESSAGE_INTERNAL_ERROR
-} ServerStatusMessageType;
-
-typedef struct {
-	ServerStatusMessageType type;
-	guint32 arg;
-} ServerStatusMessage;
-
-typedef struct {
-	guint64 address;
-	guint64 stack_pointer;
-	guint64 frame_address;
-} StackFrame;
-
-typedef struct {
-	guint64 callback_argument;
-	guint64 call_address;
-	guint64 stack_pointer;
-	guint64 is_rti_frame   : 1;
-	guint64 is_exact_match : 1;
-	guint64 saved_registers [MONO_ZERO_LEN_ARRAY];
-} CallbackInfo;
-
-#define EXECUTABLE_CODE_CHUNK_SIZE		16
-
-typedef struct
-{
-	guint32 address_size;
-	guint64 notification_address;
-	guint64 executable_code_buffer;
-	guint32 executable_code_buffer_size;
-	guint32 executable_code_chunk_size;
-	guint32 executable_code_total_chunks;
-	guint64 breakpoint_info_area;
-	guint64 breakpoint_table;
-	guint32 breakpoint_table_size;
-
-	/* Private */
-	guint8 *breakpoint_table_bitfield;
-	guint8 *executable_code_bitfield;
-	guint32 executable_code_last_slot;
-} MonoRuntimeInfo;
-
-typedef enum {
-	SERVER_CAPABILITIES_NONE		= 0,
-	SERVER_CAPABILITIES_THREAD_EVENTS	= 1,
-	SERVER_CAPABILITIES_CAN_DETACH_ANY	= 2
-} ServerCapabilities;
-
-typedef enum {
-	SERVER_TYPE_UNKNOWN			= 0,
-	SERVER_TYPE_LINUX_PTRACE		= 1,
-	SERVER_TYPE_DARWIN			= 2,
-	SERVER_TYPE_WIN32			= 3
-} ServerType;
-
-/* This is an opaque data structure which the backend may use to store stuff. */
-typedef struct InferiorVTable InferiorVTable;
-typedef struct InferiorHandle InferiorHandle;
-typedef struct ServerHandle ServerHandle;
-typedef struct ArchInfo ArchInfo;
-
-typedef struct IOThreadData IOThreadData;
-
-/* C# delegates. */
-typedef void (*ChildOutputFunc) (gboolean is_stderr, const char *output);
-
-typedef struct {
-	int sigkill;
-	int sigstop;
-	int sigint;
-	int sigchld;
-	int sigfpe;
-	int sigquit;
-	int sigabrt;
-	int sigsegv;
-	int sigill;
-	int sigbus;
-	int sigwinch;
-	int kernel_sigrtmin;
-	int mono_thread_abort;
-} SignalInfo;
-
-/*
- * Server functions.
- *
- * When porting the debugger to another architecture, you need to implement all functions
- * in this vtable.
- *
- * It is a requirement that all functions always return immediately without blocking.
- * If the requested operation cannot be performed (for instance because the target is currently
- * running, don't wait for it but return an error condition!).
- */
-
-struct ServerHandle {
-	ArchInfo *arch;
-	InferiorHandle *inferior;
-	MonoRuntimeInfo *mono_runtime;
-	BreakpointManager *bpm;
-};
-
-struct InferiorVTable {
-	
-	void                  (* global_init)         (void);
-
-	ServerType            (* get_server_type)     (void);
-
-	ServerCapabilities    (* get_capabilities)    (void);
-
-	ServerHandle *        (* create_inferior)     (BreakpointManager  *bpm);
-
-	ServerCommandError    (* initialize_process)  (ServerHandle       *handle);
-
-	ServerCommandError    (* initialize_thread)   (ServerHandle       *handle,
-						       guint32             pid,
-						       gboolean            wait);
-
-	void                  (* set_runtime_info)    (ServerHandle       *handle,
-						       MonoRuntimeInfo    *mono_runtime_info);
-
-	void                  (* io_thread_main)      (IOThreadData       *io_data,
-						       ChildOutputFunc     func);
-
-	ServerCommandError    (* spawn)               (ServerHandle       *handle,
-						       const gchar        *working_directory,
-						       const gchar       **argv,
-						       const gchar       **envp,
-						       gboolean            redirect_fds,
-						       gint               *child_pid,
-						       IOThreadData      **io_data,
-						       gchar             **error);
-
-	ServerCommandError    (* attach)              (ServerHandle       *handle,
-						       guint32             pid);
-
-	ServerCommandError    (* detach)              (ServerHandle       *handle);
-
-	void                  (* finalize)            (ServerHandle        *handle);
-
-	guint32               (* global_wait)         (guint32             *status_ret);
-
-	ServerCommandError    (* stop_and_wait)       (ServerHandle        *handle,
-						       guint32             *status);
-
-	ServerStatusMessageType (* dispatch_event)    (ServerHandle        *handle,
-						       guint32              status,
-						       guint64             *arg,
-						       guint64             *data1,
-						       guint64             *data2,
-						       guint32             *opt_data_size,
-						       gpointer            *opt_data);
-
-	ServerStatusMessageType (* dispatch_simple)   (guint32              status,
-						       guint32             *arg);
-
-	/* Get sizeof (int), sizeof (long) and sizeof (void *) from the target. */
-	ServerCommandError    (* get_target_info)     (guint32            *target_int_size,
-						       guint32            *target_long_size,
-						       guint32            *target_address_size,
-						       guint32            *is_bigendian);
-
-	/*
-	 * Continue the target.
-	 * This operation must start the target and then return immediately
-	 * (without waiting for the target to stop).
-	 */
-	ServerCommandError    (* run)                 (ServerHandle     *handle);
-
-	/*
-	 * Single-step one machine instruction.
-	 * This operation must start the target and then return immediately
-	 * (without waiting for the target to stop).
-	 */
-	ServerCommandError    (* step)                (ServerHandle     *handle);
-
-	ServerCommandError    (* resume)              (ServerHandle     *handle);
-
-	/*
-	 * Get the current program counter.
-	 * Return COMMAND_ERROR_NOT_STOPPED if the target is currently running.
-	 * This is a time-critical function, it must return immediately without blocking.
-	 */
-	ServerCommandError    (* get_frame)           (ServerHandle     *handle,
-						       StackFrame       *frame);
-
-	/*
-	 * Checks whether the current instruction is a breakpoint.
-	 */
-	ServerCommandError    (* current_insn_is_bpt) (ServerHandle     *handle,
-						       guint32          *is_breakpoint);
-
-	ServerCommandError    (* peek_word)           (ServerHandle     *handle,
-						       guint64           start,
-						       guint64          *word);
-
-	/*
-	 * Read `size' bytes from the target's address space starting at `start'.
-	 * Writes the result into `buffer' (which has been allocated by the caller).
-	 */
-	ServerCommandError    (* read_memory)         (ServerHandle     *handle,
-						       guint64           start,
-						       guint32           size,
-						       gpointer          buffer);
-
-	/*
-	 * Write `size' bytes from `buffer' to the target's address space starting at `start'.
-	 */
-	ServerCommandError    (* write_memory)        (ServerHandle     *handle,
-						       guint64           start,
-						       guint32           size,
-						       gconstpointer     data);
-
-	/*
-	 * Call `guint64 (*func) (guint64)' function at address `method' in the target address
-	 * space, pass it argument `method_argument', send a MESSAGE_CHILD_CALLBACK with the
-	 * `callback_argument' and the function's return value when the function returns.
-	 * This function must return immediately without waiting for the target !
-	 */
-	ServerCommandError    (* call_method)         (ServerHandle     *handle,
-						       guint64           method,
-						       guint64           method_argument1,
-						       guint64           method_argument2,
-						       guint64           callback_argument);
-
-	/*
-	 * Call `guint64 (*func) (guint64, const gchar *)' function at address `method' in the
-	 * target address space, pass it arguments `method_argument' and `string_argument' , send
-	 * a MESSAGE_CHILD_CALLBACK with the `callback_argument' and the function's return value
-	 * when the function returns.
-	 * This function must return immediately without waiting for the target !
-	 */
-	ServerCommandError    (* call_method_1)       (ServerHandle     *handle,
-						       guint64           method,
-						       guint64           method_argument,
-						       guint64           data_argument,
-						       guint64           data_argument2,
-						       const gchar      *string_argument,
-						       guint64           callback_argument);
-
-	ServerCommandError    (* call_method_2)       (ServerHandle     *handle,
-						       guint64           method,
-						       guint32           data_size,
-						       gconstpointer     data_buffer,
-						       guint64           callback_argument);
-
-	ServerCommandError    (* call_method_3)       (ServerHandle     *handle,
-						       guint64           method_address,
-						       guint64           method_argument,
-						       guint64           address_argument,
-						       guint32           blob_size,
-						       gconstpointer     blob_data,
-						       guint64           callback_argument);
-
-	ServerCommandError    (* call_method_invoke)  (ServerHandle     *handle,
-						       guint64           invoke_method,
-						       guint64           method_argument,
-						       guint32           num_params,
-						       guint32           glob_size,
-						       guint64          *param_data,
-						       gint32           *offset_data,
-						       gconstpointer     blob_data,
-						       guint64           callback_argument,
-						       gboolean          debug);
-
-	ServerCommandError    (* execute_instruction) (ServerHandle     *handle,
-						       const guint8     *instruction,
-						       guint32           size,
-						       gboolean          update_ip);
-
-	ServerCommandError    (* mark_rti_frame)      (ServerHandle     *handle);
-
-	ServerCommandError    (* abort_invoke)        (ServerHandle     *handle,
-						       guint64           rti_id);
-
-	/*
-	 * Insert a breakpoint at address `address' in the target's address space.
-	 * Returns a breakpoint handle in `bhandle' which can be passed to `remove_breakpoint'
-	 * to remove the breakpoint.
-	 */
-	ServerCommandError    (* insert_breakpoint)   (ServerHandle     *handle,
-						       guint64           address,
-						       guint32          *bhandle);
-
-	/*
-	 * Insert a hardware breakpoint at address `address' in the target's address space.
-	 * Returns a breakpoint handle in `bhandle' which can be passed to `remove_breakpoint'
-	 * to remove the breakpoint.
-	 */
-	ServerCommandError    (* insert_hw_breakpoint)(ServerHandle     *handle,
-						       guint32           type,
-						       guint32          *idx,
-						       guint64           address,
-						       guint32          *bhandle);
-
-	/*
-	 * Remove breakpoint `bhandle'.
-	 */
-	ServerCommandError    (* remove_breakpoint)   (ServerHandle     *handle,
-						       guint32           bhandle);
-
-	/*
-	 * Enables breakpoint `bhandle'.
-	 */
-	ServerCommandError    (* enable_breakpoint)   (ServerHandle     *handle,
-						       guint32           bhandle);
-
-	/*
-	 * Disables breakpoint `bhandle'.
-	 */
-	ServerCommandError    (* disable_breakpoint)  (ServerHandle     *handle,
-						       guint32           bhandle);
-
-	/*
-	 * Get all breakpoints.  Writes number of breakpoints into `count' and returns a g_new0()
-	 * allocated list of guint32's in `breakpoints'.  The caller is responsible for freeing this
-	 * data structure.
-	 */
-	ServerCommandError    (* get_breakpoints)     (ServerHandle     *handle,
-						       guint32          *count,
-						       guint32         **breakpoints);
-
-	/*
-	 * Get processor registers.
-	 *
-	 */
-	ServerCommandError    (* get_registers)       (ServerHandle     *handle,
-						       guint64          *values);
-
-	/*
-	 * Set processor registers.
-	 *
-	 */
-	ServerCommandError    (* set_registers)       (ServerHandle     *handle,
-						       guint64          *values);
-
-	/*
-	 * Stop the target.
-	 */
-	ServerCommandError    (* stop)                (ServerHandle     *handle);
-
-	/*
-	 * Send signal `sig' to the target the next time it is continued.
-	 */
-	ServerCommandError    (* set_signal)          (ServerHandle     *handle,
-						       guint32           sig,
-						       guint32           send_it);
-
-	ServerCommandError    (* get_pending_signal)  (ServerHandle     *handle,
-						       guint32          *signal);
-
-	/*
-	 * Kill the target.
-	 */
-	ServerCommandError    (* kill)                (ServerHandle     *handle);
-
-	ServerCommandError    (* get_signal_info)     (ServerHandle     *handle,
-						       SignalInfo      **sinfo);
-
-	ServerCommandError    (* get_threads)         (ServerHandle     *handle,
-						       guint32          *count,
-						       guint32         **threads);
-
-	ServerCommandError    (* get_application)     (ServerHandle     *handle,
-						       gchar           **exe_file,
-						       gchar           **cwd,
-						       guint32          *nargs,
-						       gchar          ***cmdline_args);
-
-	ServerCommandError    (* detach_after_fork)   (ServerHandle      *handle);
-
-	ServerCommandError    (* push_registers)      (ServerHandle      *handle,
-						       guint64           *new_rsp);
-
-	ServerCommandError    (* pop_registers)       (ServerHandle      *handle);
-
-	ServerCommandError    (* get_callback_frame)  (ServerHandle      *handle,
-						       guint64            stack_pointer,
-						       gboolean           exact_match,
-						       CallbackInfo      *info);
-
-	ServerCommandError    (* restart_notification) (ServerHandle      *handle);
-
-	void         (* get_registers_from_core_file) (guint64           *values,
-						       const guint8      *buffer);
-
-	guint32               (*get_current_pid) (void);
-
-	guint64               (*get_current_thread) (void);
-};
-
-/*
- * Library functions.
- *
- * These functions just call the corresponding function in the ServerHandle's vtable.
- * They're just here to be called from C#.
- */
-
-void
-mono_debugger_server_global_init          (void);
-
-ServerCapabilities
-mono_debugger_server_get_capabilities     (void);
-
-ServerType
-mono_debugger_server_get_server_type      (void);
-
-ServerHandle *
-mono_debugger_server_create_inferior      (BreakpointManager  *bpm);
-
-ServerCommandError
-mono_debugger_server_initialize_process   (ServerHandle       *handle);
-
-ServerCommandError
-mono_debugger_server_initialize_thread    (ServerHandle       *handle,
-					   guint32             pid,
-					   gboolean            wait);
-
-void
-mono_debugger_server_io_thread_main       (IOThreadData       *io_data,
-					   ChildOutputFunc     func);
-
-ServerCommandError
-mono_debugger_server_spawn                (ServerHandle       *handle,
-					   const gchar        *working_directory,
-					   const gchar       **argv,
-					   const gchar       **envp,
-					   gboolean            redirect_fds,
-					   gint               *child_pid,
-					   IOThreadData      **io_data,
-					   gchar             **error);
-
-ServerCommandError
-mono_debugger_server_attach               (ServerHandle       *handle,
-					   guint32             pid);
-
-void
-mono_debugger_server_finalize             (ServerHandle       *handle);
-
-guint32
-mono_debugger_server_global_wait          (guint32                 *status);
-
-ServerStatusMessageType
-mono_debugger_server_dispatch_event       (ServerHandle            *handle,
-					   guint32                  status,
-					   guint64                 *arg,
-					   guint64                 *data1,
-					   guint64                 *data2,
-					   guint32                 *opt_data_size,
-					   gpointer                *opt_data);
-
-ServerCommandError
-mono_debugger_server_get_target_info      (guint32            *target_int_size,
-					   guint32            *target_long_size,
-					   guint32            *target_address_size,
-					   guint32            *is_bigendian);
-
-ServerCommandError
-mono_debugger_server_get_frame            (ServerHandle       *handle,
-					   StackFrame         *frame);
-
-ServerCommandError
-mono_debugger_server_current_insn_is_bpt  (ServerHandle       *handle,
-					   guint32            *is_breakpoint);
-
-ServerCommandError
-mono_debugger_server_step                 (ServerHandle       *handle);
-
-ServerCommandError
-mono_debugger_server_continue             (ServerHandle       *handle);
-
-ServerCommandError
-mono_debugger_server_resume               (ServerHandle       *handle);
-
-ServerCommandError
-mono_debugger_server_detach               (ServerHandle       *handle);
-
-ServerCommandError
-mono_debugger_server_peek_word            (ServerHandle       *handle,
-					   guint64             start,
-					   guint64            *word);
-
-ServerCommandError
-mono_debugger_server_read_memory          (ServerHandle       *handle,
-					   guint64             start,
-					   guint32             size,
-					   gpointer            data);
-
-ServerCommandError
-mono_debugger_server_write_memory         (ServerHandle       *handle,
-					   guint64             start,
-					   guint32             size,
-					   gconstpointer       data);
-
-ServerCommandError
-mono_debugger_server_call_method          (ServerHandle       *handle,
-					   guint64             method_address,
-					   guint64             method_argument1,	
-					   guint64             method_argument2,
-					   guint64             callback_argument);
-
-ServerCommandError
-mono_debugger_server_call_method_1        (ServerHandle       *handle,
-					   guint64             method_address,
-					   guint64             method_argument,
-					   guint64             data_argument,
-					   guint64             data_argument2,
-					   const gchar        *string_argument,
-					   guint64             callback_argument);
-
-ServerCommandError
-mono_debugger_server_call_method_2        (ServerHandle       *handle,
-					   guint64             method_address,
-					   guint32             data_size,
-					   gconstpointer       data_buffer,
-					   guint64             callback_argument);
-
-ServerCommandError
-mono_debugger_server_call_method_3        (ServerHandle       *handle,
-					   guint64             method_address,
-					   guint64             method_argument,
-					   guint64             address_argument,
-					   guint32             blob_size,
-					   gconstpointer       blob_data,
-					   guint64             callback_argument);
-
-ServerCommandError
-mono_debugger_server_call_method_invoke   (ServerHandle       *handle,
-					   guint64             invoke_method,
-					   guint64             method_argument,
-					   guint32             num_params,
-					   guint32             blob_size,
-					   guint64            *param_data,
-					   gint32             *offset_data,
-					   gconstpointer       blob_data,
-					   guint64             callback_argument,
-					   gboolean            debug);
-
-ServerCommandError
-mono_debugger_execute_instruction         (ServerHandle        *handle,
-					   const guint8        *instruction,
-					   guint32              instruction_size,
-					   gboolean             update_ip);
-
-ServerCommandError
-mono_debugger_mark_rti_framenvoke        (ServerHandle        *handle);
-
-ServerCommandError
-mono_debugger_server_abort_invoke        (ServerHandle        *handle,
-					  guint64              rti_id);
-
-ServerCommandError
-mono_debugger_server_insert_breakpoint   (ServerHandle        *handle,
-					  guint64              address,
-					  guint32             *breakpoint);
-
-ServerCommandError
-mono_debugger_server_insert_hw_breakpoint(ServerHandle        *handle,
-					  guint32              type,
-					  guint32             *idx,
-					  guint64              address,
-					  guint32             *breakpoint);
-
-ServerCommandError
-mono_debugger_server_remove_breakpoint   (ServerHandle        *handle,
-					  guint32              breakpoint);
-
-ServerCommandError
-mono_debugger_server_enable_breakpoint   (ServerHandle        *handle,
-					  guint32              breakpoint);
-
-ServerCommandError
-mono_debugger_server_disable_breakpoint  (ServerHandle        *handle,
-					  guint32              breakpoint);
-
-ServerCommandError
-mono_debugger_server_get_registers       (ServerHandle        *handle,
-					  guint64             *values);
-
-ServerCommandError
-mono_debugger_server_set_registers       (ServerHandle        *handle,
-					  guint64             *values);
-
-ServerCommandError
-mono_debugger_server_stop                (ServerHandle        *handle);
-
-ServerCommandError
-mono_debugger_server_stop_and_wait       (ServerHandle        *handle,
-					  guint32             *status);
-
-ServerCommandError
-mono_debugger_server_set_signal          (ServerHandle        *handle,
-					  guint32              sig,
-					  guint32              send_it);
-
-ServerCommandError
-mono_debugger_server_get_pending_signal  (ServerHandle        *handle,
-					  guint32             *signal);
-
-ServerCommandError
-mono_debugger_server_kill                (ServerHandle        *handle);
-
-ServerCommandError
-mono_debugger_server_get_signal_info     (ServerHandle        *handle,
-					  SignalInfo         **sinfo);
-
-void
-mono_debugger_server_set_runtime_info    (ServerHandle        *handle,
-					  MonoRuntimeInfo     *mono_runtime);
-
-ServerCommandError
-mono_debugger_server_get_threads         (ServerHandle        *handle,
-					  guint32             *count,
-					  guint32            **threads);
-
-ServerCommandError
-mono_debugger_server_get_application     (ServerHandle        *handle,
-					  gchar              **exe_file,
-					  gchar              **cwd,
-					  guint32             *nargs,
-					  gchar             ***cmdline_args);
-
-ServerCommandError
-mono_debugger_server_detach_after_fork   (ServerHandle        *handle);
-
-ServerCommandError
-mono_debugger_server_push_registers      (ServerHandle        *handle,
-					  guint64             *new_rsp);
-
-ServerCommandError
-mono_debugger_server_pop_registers       (ServerHandle        *handle);
-
-ServerCommandError
-mono_debugger_server_get_callback_frame  (ServerHandle        *handle,
-					  guint64              stack_pointer,
-					  gboolean             exact_match,
-					  CallbackInfo        *info);
-
-ServerCommandError
-mono_debugger_server_restart_notification (ServerHandle        *handle);
-
-MonoRuntimeInfo *
-mono_debugger_server_initialize_mono_runtime (guint32 address_size,
-					      guint64 notification_address,
-					      guint64 executable_code_buffer,
-					      guint32 executable_code_buffer_size,
-					      guint64 breakpoint_info_area,
-					      guint64 breakpoint_table,
-					      guint32 breakpoint_table_size);
-
-void
-mono_debugger_server_finalize_mono_runtime (MonoRuntimeInfo *runtime);
-
-void
-mono_debugger_server_initialize_code_buffer (MonoRuntimeInfo *runtime,
-					     guint64 executable_code_buffer,
-					     guint32 executable_code_buffer_size);
-
-void
-mono_debugger_server_get_registers_from_core_file (guint64 *values,
-						   const guint8 *buffer);
-
-guint32
-mono_debugger_server_get_current_pid (void);
-
-guint64
-mono_debugger_server_get_current_thread (void);
-
-G_END_DECLS
-
-#endif
diff --git a/sysdeps/server/x86-linux-ptrace.c b/sysdeps/server/x86-linux-ptrace.c
deleted file mode 100644
index 2c8379c..0000000
--- a/sysdeps/server/x86-linux-ptrace.c
+++ /dev/null
@@ -1,695 +0,0 @@
-static ServerType
-server_ptrace_get_server_type (void)
-{
-	return SERVER_TYPE_LINUX_PTRACE;
-}
-
-static ServerCapabilities
-server_ptrace_get_capabilities (void)
-{
-	return SERVER_CAPABILITIES_THREAD_EVENTS | SERVER_CAPABILITIES_CAN_DETACH_ANY;
-}
-
-static ServerCommandError
-_server_ptrace_check_errno (InferiorHandle *inferior)
-{
-	gchar *filename;
-
-	if (!errno)
-		return COMMAND_ERROR_NONE;
-	else if (errno != ESRCH) {
-		g_message (G_STRLOC ": %d - %s", inferior->pid, g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	filename = g_strdup_printf ("/proc/%d/stat", inferior->pid);
-	if (g_file_test (filename, G_FILE_TEST_EXISTS)) {
-		g_free (filename);
-		return COMMAND_ERROR_NOT_STOPPED;
-	}
-
-	g_warning (G_STRLOC ": %d - %s - %d (%s)", inferior->pid, filename,
-		   errno, g_strerror (errno));
-	g_free (filename);
-	return COMMAND_ERROR_NO_TARGET;
-}
-
-static ServerCommandError
-_server_ptrace_make_memory_executable (ServerHandle *handle, guint64 start, guint32 size)
-{
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-_server_ptrace_get_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs)
-{
-	if (ptrace (PT_GETREGS, inferior->pid, NULL, regs) != 0)
-		return _server_ptrace_check_errno (inferior);
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-_server_ptrace_set_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs)
-{
-	if (ptrace (PT_SETREGS, inferior->pid, NULL, regs) != 0)
-		return _server_ptrace_check_errno (inferior);
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-_server_ptrace_get_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs)
-{
-	if (ptrace (PT_GETFPREGS, inferior->pid, NULL, regs) != 0)
-		return _server_ptrace_check_errno (inferior);
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-_server_ptrace_set_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs)
-{
-	if (ptrace (PT_SETFPREGS, inferior->pid, NULL, regs) != 0)
-		return _server_ptrace_check_errno (inferior);
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-_server_ptrace_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer buffer)
-{
-	guint8 *ptr = buffer;
-	guint32 old_size = size;
-
-	while (size) {
-		int ret = pread64 (handle->inferior->os.mem_fd, ptr, size, start);
-		if (ret < 0) {
-			if (errno == EINTR)
-				continue;
-			else if (errno == ESRCH)
-				return COMMAND_ERROR_NOT_STOPPED;
-			else if (errno == EIO)
-				return COMMAND_ERROR_MEMORY_ACCESS;
-			return COMMAND_ERROR_MEMORY_ACCESS;
-		}
-
-		size -= ret;
-		ptr += ret;
-	}
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer buffer)
-{
-	ServerCommandError result = _server_ptrace_read_memory (handle, start, size, buffer);
-	if (result != COMMAND_ERROR_NONE)
-		return result;
-	x86_arch_remove_breakpoints_from_target_memory (handle, start, size, buffer);
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_write_memory (ServerHandle *handle, guint64 start,
-			    guint32 size, gconstpointer buffer)
-{
-	InferiorHandle *inferior = handle->inferior;
-	ServerCommandError result;
-	const long *ptr = buffer;
-	guint64 addr = start;
-	char temp [8];
-
-	while (size >= sizeof (long)) {
-		long word = *ptr++;
-
-		errno = 0;
-		if (ptrace (PT_WRITE_D, inferior->pid, GSIZE_TO_POINTER (addr), word) != 0)
-			return _server_ptrace_check_errno (inferior);
-
-		addr += sizeof (long);
-		size -= sizeof (long);
-	}
-
-	if (!size)
-		return COMMAND_ERROR_NONE;
-
-	result = _server_ptrace_read_memory (handle, addr, sizeof (long), &temp);
-	if (result != COMMAND_ERROR_NONE)
-		return result;
-
-	memcpy (&temp, ptr, size);
-
-	return server_ptrace_write_memory (handle, addr, sizeof (long), &temp);
-}
-
-static ServerCommandError
-server_ptrace_poke_word (ServerHandle *handle, guint64 addr, gsize value)
-{
-	errno = 0;
-	if (ptrace (PT_WRITE_D, handle->inferior->pid, GSIZE_TO_POINTER (addr), value) != 0)
-		return _server_ptrace_check_errno (handle->inferior);
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-_server_ptrace_set_dr (InferiorHandle *handle, int regnum, guint64 value)
-{
-	errno = 0;
-	ptrace (PTRACE_POKEUSER, handle->pid, offsetof (struct user, u_debugreg [regnum]), value);
-	if (errno) {
-		g_message (G_STRLOC ": %d - %d - %s", handle->pid, regnum, g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	return COMMAND_ERROR_NONE;
-}
-
-
-static ServerCommandError
-_server_ptrace_get_dr (InferiorHandle *handle, int regnum, guint64 *value)
-{
-	int ret;
-
-	errno = 0;
-	ret = ptrace (PTRACE_PEEKUSER, handle->pid, offsetof (struct user, u_debugreg [regnum]));
-	if (errno) {
-		g_message (G_STRLOC ": %d - %d - %s", handle->pid, regnum, g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	*value = ret;
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_continue (ServerHandle *handle)
-{
-	InferiorHandle *inferior = handle->inferior;
-
-	errno = 0;
-	inferior->stepping = FALSE;
-	if (ptrace (PT_CONTINUE, inferior->pid, (caddr_t) 1, inferior->last_signal)) {
-		return _server_ptrace_check_errno (inferior);
-	}
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_step (ServerHandle *handle)
-{
-	InferiorHandle *inferior = handle->inferior;
-
-	errno = 0;
-	inferior->stepping = TRUE;
-	if (ptrace (PT_STEP, inferior->pid, (caddr_t) 1, inferior->last_signal))
-		return _server_ptrace_check_errno (inferior);
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_kill (ServerHandle *handle)
-{
-	if (ptrace (PTRACE_KILL, handle->inferior->pid, NULL, 0))
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-
-	return COMMAND_ERROR_NONE;
-}
-
-GStaticMutex wait_mutex = G_STATIC_MUTEX_INIT;
-GStaticMutex wait_mutex_2 = G_STATIC_MUTEX_INIT;
-GStaticMutex wait_mutex_3 = G_STATIC_MUTEX_INIT;
-
-static int
-do_wait (int pid, guint32 *status, gboolean nohang)
-{
-	int ret, flags;
-
-#if DEBUG_WAIT
-	g_message (G_STRLOC ": do_wait (%d%s)", pid, nohang ? ",nohang" : "");
-#endif
-	flags = WUNTRACED | __WALL | __WCLONE;
-	if (nohang)
-		flags |= WNOHANG;
-	ret = waitpid (pid, status, flags);
-#if DEBUG_WAIT
-	g_message (G_STRLOC ": do_wait (%d) finished: %d - %x", pid, ret, *status);
-#endif
-	if (ret < 0) {
-		if (errno == EINTR)
-			return 0;
-		else if (errno == ECHILD)
-			return -1;
-		g_warning (G_STRLOC ": Can't waitpid for %d: %s", pid, g_strerror (errno));
-		return -1;
-	}
-
-	return ret;
-}
-
-static int stop_requested = 0;
-static int stop_status = 0;
-
-static guint32
-server_ptrace_global_wait (guint32 *status_ret)
-{
-	int ret, status;
-
- again:
-	g_static_mutex_lock (&wait_mutex);
-	ret = do_wait (-1, &status, FALSE);
-	if (ret <= 0)
-		goto out;
-
-#if DEBUG_WAIT
-	g_message (G_STRLOC ": global wait finished: %d - %x", ret, status);
-#endif
-
-	g_static_mutex_lock (&wait_mutex_2);
-
-#if DEBUG_WAIT
-	g_message (G_STRLOC ": global wait finished #1: %d - %x - %d",
-		   ret, status, stop_requested);
-#endif
-
-	if (ret == stop_requested) {
-		*status_ret = 0;
-		stop_status = status;
-		g_static_mutex_unlock (&wait_mutex_2);
-		g_static_mutex_unlock (&wait_mutex);
-
-		g_static_mutex_lock (&wait_mutex_3);
-		g_static_mutex_unlock (&wait_mutex_3);
-		goto again;
-	}
-	g_static_mutex_unlock (&wait_mutex_2);
-
-	*status_ret = status;
- out:
-	g_static_mutex_unlock (&wait_mutex);
-	return ret;
-}
-
-static gboolean
-_server_ptrace_wait_for_new_thread (ServerHandle *handle)
-{
-	guint32 ret, status = 0;
-
-	/*
-	 * There is a race condition in the Linux kernel which shows up on >= 2.6.27:
-	 *
-	 * When creating a new thread, the initial stopping event of that thread is sometimes
-	 * sent before sending the `PTRACE_EVENT_CLONE' for it.
-	 *
-	 * Because of this, we wait here until the new thread has been stopped and ignore
-	 * any "early" stopping events.
-	 *
-	 * See also bugs #423518 and #466012.
-.	 *
-	 */
-
-	if (!g_static_mutex_trylock (&wait_mutex)) {
-		/* This should never happen, but let's not deadlock here. */
-		g_warning (G_STRLOC ": Can't lock mutex: %d", handle->inferior->pid);
-		return FALSE;
-	}
-
-	/*
-	 * We own the `wait_mutex', so no other thread is currently waiting for the target
-	 * and we can safely wait for it here.
-	 */
-
-	ret = waitpid (handle->inferior->pid, &status, WUNTRACED | __WALL | __WCLONE);
-
-	/*
-	 * Safety check: make sure we got the correct event.
-	 */
-
-	if ((ret != handle->inferior->pid) || !WIFSTOPPED (status) ||
-	    ((WSTOPSIG (status) != SIGSTOP) && (WSTOPSIG (status) != SIGTRAP))) {
-		g_warning (G_STRLOC ": Wait failed: %d, got pid %d, status %x", handle->inferior->pid, ret, status);
-		g_static_mutex_unlock (&wait_mutex);
-		return FALSE;
-	}
-
-	/*
-	 * Just as an extra safety check.
-	 */
-
-	if (x86_arch_get_registers (handle) != COMMAND_ERROR_NONE) {
-		g_static_mutex_unlock (&wait_mutex);
-		g_warning (G_STRLOC ": Failed to get registers: %d", handle->inferior->pid);
-		return FALSE;
-	}
-
-	g_static_mutex_unlock (&wait_mutex);
-	return TRUE;
-}
-
-static ServerCommandError
-server_ptrace_stop (ServerHandle *handle)
-{
-	ServerCommandError result;
-
-	/*
-	 * Try to get the thread's registers.  If we suceed, then it's already stopped
-	 * and still alive.
-	 */
-	result = x86_arch_get_registers (handle);
-	if (result == COMMAND_ERROR_NONE)
-		return COMMAND_ERROR_ALREADY_STOPPED;
-
-	if (syscall (__NR_tkill, handle->inferior->pid, SIGSTOP)) {
-		/*
-		 * It's already dead.
-		 */
-		if (errno == ESRCH)
-			return COMMAND_ERROR_NO_TARGET;
-		else
-			return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_stop_and_wait (ServerHandle *handle, guint32 *status)
-{
-	ServerCommandError result;
-	gboolean already_stopped = FALSE;
-	int ret;
-
-	/*
-	 * Try to get the thread's registers.  If we suceed, then it's already stopped
-	 * and still alive.
-	 */
-#if DEBUG_WAIT
-	g_message (G_STRLOC ": stop and wait %d", handle->inferior->pid);
-#endif
-	g_static_mutex_lock (&wait_mutex_2);
-	result = server_ptrace_stop (handle);
-	if (result == COMMAND_ERROR_ALREADY_STOPPED) {
-#if DEBUG_WAIT
-		g_message (G_STRLOC ": %d - already stopped", handle->inferior->pid);
-#endif
-		already_stopped = TRUE;
-	} else if (result != COMMAND_ERROR_NONE) {
-#if DEBUG_WAIT
-		g_message (G_STRLOC ": %d - cannot stop %d", handle->inferior->pid, result);
-#endif
-
-		g_static_mutex_unlock (&wait_mutex_2);
-		return result;
-	}
-
-	g_static_mutex_lock (&wait_mutex_3);
-
-	stop_requested = handle->inferior->pid;
-	g_static_mutex_unlock (&wait_mutex_2);
-
-#if DEBUG_WAIT
-	if (!already_stopped)
-		g_message (G_STRLOC ": %d - sent SIGSTOP", handle->inferior->pid);
-#endif
-
-	g_static_mutex_lock (&wait_mutex);
-#if DEBUG_WAIT
-	g_message (G_STRLOC ": %d - got stop status %x", handle->inferior->pid, stop_status);
-#endif
-	if (stop_status) {
-		*status = stop_status;
-		stop_requested = stop_status = 0;
-		g_static_mutex_unlock (&wait_mutex);
-		g_static_mutex_unlock (&wait_mutex_3);
-		return COMMAND_ERROR_NONE;
-	}
-
-	stop_requested = stop_status = 0;
-
-	do {
-#if DEBUG_WAIT
-		g_message (G_STRLOC ": %d - waiting", handle->inferior->pid);
-#endif
-		ret = do_wait (handle->inferior->pid, status, already_stopped);
-#if DEBUG_WAIT
-		g_message (G_STRLOC ": %d - done waiting %d, %x",
-			   handle->inferior->pid, ret, status);
-#endif
-	} while (ret == 0);
-	g_static_mutex_unlock (&wait_mutex);
-	g_static_mutex_unlock (&wait_mutex_3);
-
-	/*
-	 * Should never happen.
-	 */
-	if (ret < 0)
-		return COMMAND_ERROR_NO_TARGET;
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-_server_ptrace_setup_inferior (ServerHandle *handle)
-{
-	gchar *filename = g_strdup_printf ("/proc/%d/mem", handle->inferior->pid);
-
-	x86_arch_remove_hardware_breakpoints (handle);
-
-	handle->inferior->os.mem_fd = open64 (filename, O_RDONLY);
-
-	if (handle->inferior->os.mem_fd < 0) {
-		if (errno == EACCES)
-			return COMMAND_ERROR_PERMISSION_DENIED;
-
-		g_warning (G_STRLOC ": Can't open (%s): %s", filename, g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	g_free (filename);
-	return COMMAND_ERROR_NONE;
-}
-
-static void
-_server_ptrace_finalize_inferior (ServerHandle *handle)
-{
-	close (handle->inferior->os.mem_fd);
-	handle->inferior->os.mem_fd = -1;
-}
-
-static ServerCommandError
-server_ptrace_initialize_process (ServerHandle *handle)
-{
-	int flags = PTRACE_O_TRACECLONE | PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORK |
-		PTRACE_O_TRACEEXEC;
-
-	if (ptrace (PTRACE_SETOPTIONS, handle->inferior->pid, 0, flags)) {
-		g_warning (G_STRLOC ": Can't PTRACE_SETOPTIONS %d: %s",
-			   handle->inferior->pid, g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_get_signal_info (ServerHandle *handle, SignalInfo **sinfo_out)
-{
-	SignalInfo *sinfo = g_new0 (SignalInfo, 1);
-
-	sinfo->sigkill = SIGKILL;
-	sinfo->sigstop = SIGSTOP;
-	sinfo->sigint = SIGINT;
-	sinfo->sigchld = SIGCHLD;
-
-	sinfo->sigfpe = SIGFPE;
-	sinfo->sigquit = SIGQUIT;
-	sinfo->sigabrt = SIGABRT;
-	sinfo->sigsegv = SIGSEGV;
-	sinfo->sigill = SIGILL;
-	sinfo->sigbus = SIGBUS;
-	sinfo->sigwinch = SIGWINCH;
-
-	/* __SIGRTMIN is the hard limit from the kernel, SIGRTMIN is the first
-	 * user-visible real-time signal.  __SIGRTMIN and __SIGRTMIN+1 are used
-	 * internally by glibc. */
-	sinfo->kernel_sigrtmin = __SIGRTMIN;
-#ifdef USING_MONO_FROM_TRUNK
-	sinfo->mono_thread_abort = -1;
-#else
-	sinfo->mono_thread_abort = mono_thread_get_abort_signal ();
-#endif
-
-	*sinfo_out = sinfo;
-
-	return COMMAND_ERROR_NONE;
-}
-
-static void
-server_ptrace_global_init (void)
-{
-	stop_requested = 0;
-	stop_status = 0;
-}
-
-static ServerCommandError
-server_ptrace_get_threads (ServerHandle *handle, guint32 *count, guint32 **threads)
-{
-	gchar *dirname = g_strdup_printf ("/proc/%d/task", handle->inferior->pid);
-	const gchar *filename;
-	GPtrArray *array;
-	GDir *dir;
-	int i;
-
-	dir = g_dir_open (dirname, 0, NULL);
-	if (!dir) {
-		g_warning (G_STRLOC ": Can't get threads of %d", handle->inferior->pid);
-		g_free (dirname);
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	array = g_ptr_array_new ();
-
-	while ((filename = g_dir_read_name (dir)) != NULL) {
-		gchar *endptr;
-		guint32 pid;
-
-		pid = (guint32) strtol (filename, &endptr, 10);
-		if (*endptr)
-			goto out_error;
-
-		g_ptr_array_add (array, GUINT_TO_POINTER (pid));
-	}
-
-	*count = array->len;
-	*threads = g_new0 (guint32, array->len);
-
-	for (i = 0; i < array->len; i++)
-		(*threads) [i] = GPOINTER_TO_UINT (g_ptr_array_index (array, i));
-
-	g_free (dirname);
-	g_dir_close (dir);
-	g_ptr_array_free (array, FALSE);
-	return COMMAND_ERROR_NONE;
-
- out_error:
-	g_free (dirname);
-	g_dir_close (dir);
-	g_ptr_array_free (array, FALSE);
-	g_warning (G_STRLOC ": Can't get threads of %d", handle->inferior->pid);
-	return COMMAND_ERROR_UNKNOWN_ERROR;
-}
-
-static ServerCommandError
-server_ptrace_get_application (ServerHandle *handle, gchar **exe_file, gchar **cwd,
-			       guint32 *nargs, gchar ***cmdline_args)
-{
-	gchar *exe_filename = g_strdup_printf ("/proc/%d/exe", handle->inferior->pid);
-	gchar *cwd_filename = g_strdup_printf ("/proc/%d/cwd", handle->inferior->pid);
-	gchar *cmdline_filename = g_strdup_printf ("/proc/%d/cmdline", handle->inferior->pid);
-	char buffer [BUFSIZ+1];
-	GPtrArray *array;
-	gchar *cmdline, **ptr;
-	gssize pos, len;
-	int i;
-
-	len = readlink (exe_filename, buffer, BUFSIZ);
-	if (len < 0) {
-		g_free (cwd_filename);
-		g_free (exe_filename);
-		g_free (cmdline_filename);
-
-		if (errno == EACCES)
-			return COMMAND_ERROR_PERMISSION_DENIED;
-
-		g_warning (G_STRLOC ": Can't get exe file of %d: %s", handle->inferior->pid,
-			   g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	buffer [len] = 0;
-	*exe_file = g_strdup (buffer);
-
-	len = readlink (cwd_filename, buffer, BUFSIZ);
-	if (len < 0) {
-		g_free (cwd_filename);
-		g_free (exe_filename);
-		g_free (cmdline_filename);
-		g_warning (G_STRLOC ": Can't get cwd of %d: %s", handle->inferior->pid,
-			   g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	buffer [len] = 0;
-	*cwd = g_strdup (buffer);
-
-	if (!g_file_get_contents (cmdline_filename, &cmdline, &len, NULL)) {
-		g_free (cwd_filename);
-		g_free (exe_filename);
-		g_free (cmdline_filename);
-		g_warning (G_STRLOC ": Can't get cmdline args of %d", handle->inferior->pid);
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	array = g_ptr_array_new ();
-
-	pos = 0;
-	while (pos < len) {
-		g_ptr_array_add (array, cmdline + pos);
-		pos += strlen (cmdline + pos) + 1;
-	}
-
-	*nargs = array->len;
-	*cmdline_args = ptr = g_new0 (gchar *, array->len + 1);
-
-	for (i = 0; i < array->len; i++)
-		ptr  [i] = g_ptr_array_index (array, i);
-
-	g_free (cwd_filename);
-	g_free (exe_filename);
-	g_free (cmdline_filename);
-	g_ptr_array_free (array, FALSE);
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_detach_after_fork (ServerHandle *handle)
-{
-	ServerCommandError result;
-	GPtrArray *breakpoints;
-	guint32 status;
-	int ret, i;
-
-	ret = waitpid (handle->inferior->pid, &status, WUNTRACED | WNOHANG | __WALL | __WCLONE);
-	if (ret < 0)
-		g_warning (G_STRLOC ": Can't waitpid for %d: %s", handle->inferior->pid, g_strerror (errno));
-
-	/*
-	 * Make sure we're stopped.
-	 */
-	if (x86_arch_get_registers (handle) != COMMAND_ERROR_NONE)
-		do_wait (handle->inferior->pid, &status, FALSE);
-
-	result = x86_arch_get_registers (handle);
-	if (result != COMMAND_ERROR_NONE)
-		return result;
-
-	mono_debugger_breakpoint_manager_lock ();
-
-	breakpoints = mono_debugger_breakpoint_manager_get_breakpoints (handle->bpm);
-	for (i = 0; i < breakpoints->len; i++) {
-		BreakpointInfo *info = g_ptr_array_index (breakpoints, i);
-
-		x86_arch_disable_breakpoint (handle, info);
-	}
-
-	mono_debugger_breakpoint_manager_unlock ();
-
-	if (ptrace (PT_DETACH, handle->inferior->pid, NULL, NULL) != 0)
-		return _server_ptrace_check_errno (handle->inferior);
-
-	return COMMAND_ERROR_NONE;
-}
diff --git a/sysdeps/server/x86-ptrace.c b/sysdeps/server/x86-ptrace.c
deleted file mode 100644
index 818eb36..0000000
--- a/sysdeps/server/x86-ptrace.c
+++ /dev/null
@@ -1,657 +0,0 @@
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#include <config.h>
-#include <server.h>
-#include <breakpoints.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <pthread.h>
-#include <semaphore.h>
-#include <sys/stat.h>
-#include <sys/ptrace.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-#include <sys/poll.h>
-#include <sys/select.h>
-#include <sys/resource.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/syscall.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-
-/*
- * NOTE:  The manpage is wrong about the POKE_* commands - the last argument
- *        is the data (a word) to be written, not a pointer to it.
- *
- * In general, the ptrace(2) manpage is very bad, you should really read
- * kernel/ptrace.c and arch/i386/kernel/ptrace.c in the Linux source code
- * to get a better understanding for this stuff.
- */
-
-#ifdef __linux__
-#include "x86-linux-ptrace.h"
-#endif
-
-#ifdef __FreeBSD__
-#include "x86-freebsd-ptrace.h"
-#endif
-
-#ifdef __MACH__
-#include "darwin-ptrace.h"
-#endif
-
-#include "x86-arch.h"
-
-struct IOThreadData
-{
-	int output_fd, error_fd;
-};
-
-MonoRuntimeInfo *
-mono_debugger_server_initialize_mono_runtime (guint32 address_size,
-					      guint64 notification_address,
-					      guint64 executable_code_buffer,
-					      guint32 executable_code_buffer_size,
-					      guint64 breakpoint_info_area,
-					      guint64 breakpoint_table,
-					      guint32 breakpoint_table_size)
-{
-	MonoRuntimeInfo *runtime = g_new0 (MonoRuntimeInfo, 1);
-
-	runtime->address_size = address_size;
-	runtime->notification_address = notification_address;
-	runtime->executable_code_buffer = executable_code_buffer;
-	runtime->executable_code_buffer_size = executable_code_buffer_size;
-	runtime->executable_code_chunk_size = EXECUTABLE_CODE_CHUNK_SIZE;
-	runtime->executable_code_total_chunks = executable_code_buffer_size / EXECUTABLE_CODE_CHUNK_SIZE;
-
-	runtime->breakpoint_info_area = breakpoint_info_area;
-	runtime->breakpoint_table = breakpoint_table;
-	runtime->breakpoint_table_size = breakpoint_table_size;
-
-	runtime->breakpoint_table_bitfield = g_malloc0 (breakpoint_table_size);
-	runtime->executable_code_bitfield = g_malloc0 (runtime->executable_code_total_chunks);
-
-	return runtime;
-}
-
-void
-mono_debugger_server_initialize_code_buffer (MonoRuntimeInfo *runtime,
-					     guint64 executable_code_buffer,
-					     guint32 executable_code_buffer_size)
-{
-	runtime->executable_code_buffer = executable_code_buffer;
-	runtime->executable_code_buffer_size = executable_code_buffer_size;
-	runtime->executable_code_chunk_size = EXECUTABLE_CODE_CHUNK_SIZE;
-	runtime->executable_code_total_chunks = executable_code_buffer_size / EXECUTABLE_CODE_CHUNK_SIZE;
-}
-
-void
-mono_debugger_server_finalize_mono_runtime (MonoRuntimeInfo *runtime)
-{
-	runtime->executable_code_buffer = 0;
-}
-
-static void
-server_ptrace_finalize (ServerHandle *handle)
-{
-	x86_arch_finalize (handle->arch);
-
-	_server_ptrace_finalize_inferior (handle);
-
-	g_free (handle->inferior);
-	g_free (handle);
-}
-
-#ifndef __MACH__
-#endif
-
-static ServerCommandError
-server_ptrace_resume (ServerHandle *handle)
-{
-	InferiorHandle *inferior = handle->inferior;
-	if (inferior->stepping)
-		return server_ptrace_step (handle);
-	else
-		return server_ptrace_continue (handle);
-}
-
-static ServerCommandError
-server_ptrace_detach (ServerHandle *handle)
-{
-	InferiorHandle *inferior = handle->inferior;
-
-	if (ptrace (PT_DETACH, inferior->pid, NULL, 0)) {
-		g_message (G_STRLOC ": %d - %s", inferior->pid, g_strerror (errno));
-		return COMMAND_ERROR_UNKNOWN_ERROR;
-	}
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_peek_word (ServerHandle *handle, guint64 start, guint64 *retval)
-{
-	return server_ptrace_read_memory (handle, start, sizeof (gsize), retval);
-}
-
-static ServerStatusMessageType
-server_ptrace_dispatch_event (ServerHandle *handle, guint32 status, guint64 *arg,
-			      guint64 *data1, guint64 *data2, guint32 *opt_data_size,
-			      gpointer *opt_data)
-{
-	#ifdef PTRACE_EVENT_CLONE
-	if (status >> 16) {
-		switch (status >> 16) {
-		case PTRACE_EVENT_CLONE: {
-			int new_pid;
-
-			if (ptrace (PTRACE_GETEVENTMSG, handle->inferior->pid, 0, &new_pid)) {
-				g_warning (G_STRLOC ": %d - %s", handle->inferior->pid,
-					   g_strerror (errno));
-				return FALSE;
-			}
-
-			*arg = new_pid;
-			return MESSAGE_CHILD_CREATED_THREAD;
-		}
-
-		case PTRACE_EVENT_FORK: {
-			int new_pid;
-
-			if (ptrace (PTRACE_GETEVENTMSG, handle->inferior->pid, 0, &new_pid)) {
-				g_warning (G_STRLOC ": %d - %s", handle->inferior->pid,
-					   g_strerror (errno));
-				return FALSE;
-			}
-
-			*arg = new_pid;
-			return MESSAGE_CHILD_FORKED;
-		}
-
-		case PTRACE_EVENT_EXEC:
-			return MESSAGE_CHILD_EXECD;
-
-		case PTRACE_EVENT_EXIT: {
-			int exitcode;
-
-			if (ptrace (PTRACE_GETEVENTMSG, handle->inferior->pid, 0, &exitcode)) {
-				g_warning (G_STRLOC ": %d - %s", handle->inferior->pid,
-					   g_strerror (errno));
-				return FALSE;
-			}
-
-			*arg = 0;
-			return MESSAGE_CHILD_CALLED_EXIT;
-		}
-
-		default:
-			g_warning (G_STRLOC ": Received unknown wait result %x on child %d",
-				   status, handle->inferior->pid);
-			return MESSAGE_UNKNOWN_ERROR;
-		}
-	}
-	#endif
-
-	if (WIFSTOPPED (status)) {
-#if __MACH__
-		handle->inferior->os.wants_to_run = FALSE;
-#endif
-		guint64 callback_arg, retval, retval2;
-		ChildStoppedAction action;
-		int stopsig;
-
-		stopsig = WSTOPSIG (status);
-		if (stopsig == SIGCONT)
-			stopsig = 0;
-
-		action = x86_arch_child_stopped (
-			handle, stopsig, &callback_arg, &retval, &retval2, opt_data_size, opt_data);
-
-		if (action != STOP_ACTION_STOPPED)
-			handle->inferior->last_signal = 0;
-
-		switch (action) {
-		case STOP_ACTION_STOPPED:
-			if (stopsig == SIGTRAP) {
-				handle->inferior->last_signal = 0;
-				*arg = 0;
-			} else {
-				handle->inferior->last_signal = stopsig;
-				*arg = stopsig;
-			}
-			return MESSAGE_CHILD_STOPPED;
-
-		case STOP_ACTION_INTERRUPTED:
-			*arg = 0;
-			return MESSAGE_CHILD_INTERRUPTED;
-
-		case STOP_ACTION_BREAKPOINT_HIT:
-			*arg = (int) retval;
-			return MESSAGE_CHILD_HIT_BREAKPOINT;
-
-		case STOP_ACTION_CALLBACK:
-			*arg = callback_arg;
-			*data1 = retval;
-			*data2 = retval2;
-			return MESSAGE_CHILD_CALLBACK;
-
-		case STOP_ACTION_CALLBACK_COMPLETED:
-			*arg = callback_arg;
-			*data1 = retval;
-			*data2 = retval2;
-			return MESSAGE_CHILD_CALLBACK_COMPLETED;
-
-		case STOP_ACTION_NOTIFICATION:
-			*arg = callback_arg;
-			*data1 = retval;
-			*data2 = retval2;
-			return MESSAGE_CHILD_NOTIFICATION;
-
-		case STOP_ACTION_RTI_DONE:
-			*arg = callback_arg;
-			*data1 = retval;
-			*data2 = retval2;
-			return MESSAGE_RUNTIME_INVOKE_DONE;
-
-		case STOP_ACTION_INTERNAL_ERROR:
-			return MESSAGE_INTERNAL_ERROR;
-		}
-
-		g_assert_not_reached ();
-	} else if (WIFEXITED (status)) {
-		*arg = WEXITSTATUS (status);
-		return MESSAGE_CHILD_EXITED;
-	} else if (WIFSIGNALED (status)) {
-		if ((WTERMSIG (status) == SIGTRAP) || (WTERMSIG (status) == SIGKILL)) {
-			*arg = 0;
-			return MESSAGE_CHILD_EXITED;
-		} else {
-			*arg = WTERMSIG (status);
-			return MESSAGE_CHILD_SIGNALED;
-		}
-	}
-
-	g_warning (G_STRLOC ": Got unknown waitpid() result: %x", status);
-	return MESSAGE_UNKNOWN_ERROR;
-}
-
-static ServerStatusMessageType
-server_ptrace_dispatch_simple (guint32 status, guint32 *arg)
-{
-	if (status >> 16)
-		return MESSAGE_UNKNOWN_ERROR;
-
-	if (WIFSTOPPED (status)) {
-		int stopsig = WSTOPSIG (status);
-
-		if ((stopsig == SIGSTOP) || (stopsig == SIGTRAP))
-			stopsig = 0;
-
-		*arg = stopsig;
-		return MESSAGE_CHILD_STOPPED;
-	} else if (WIFEXITED (status)) {
-		*arg = WEXITSTATUS (status);
-		return MESSAGE_CHILD_EXITED;
-	} else if (WIFSIGNALED (status)) {
-		if ((WTERMSIG (status) == SIGTRAP) || (WTERMSIG (status) == SIGKILL)) {
-			*arg = 0;
-			return MESSAGE_CHILD_EXITED;
-		} else {
-			*arg = WTERMSIG (status);
-			return MESSAGE_CHILD_SIGNALED;
-		}
-	}
-
-	return MESSAGE_UNKNOWN_ERROR;
-}
-
-
-static ServerHandle *
-server_ptrace_create_inferior (BreakpointManager *bpm)
-{
-	ServerHandle *handle = g_new0 (ServerHandle, 1);
-
-	if ((getuid () == 0) || (geteuid () == 0)) {
-		g_message ("WARNING: Running mdb as root may be a problem because setuid() and\n"
-			   "seteuid() do nothing.\n"
-			   "See http://primates.ximian.com/~martin/blog/entry_150.html for details.");
-	}
-
-	handle->bpm = bpm;
-	handle->inferior = g_new0 (InferiorHandle, 1);
-	handle->arch = x86_arch_initialize ();
-
-	return handle;
-}
-
-static void
-child_setup_func (InferiorHandle *inferior)
-{
-	if (ptrace (PT_TRACE_ME, getpid (), NULL, 0))
-		g_error (G_STRLOC ": Can't PT_TRACEME: %s", g_strerror (errno));
-
-	if (inferior->redirect_fds) {
-		dup2 (inferior->output_fd[1], 1);
-		dup2 (inferior->error_fd[1], 2);
-	}
-}
-
-static ServerCommandError
-server_ptrace_spawn (ServerHandle *handle, const gchar *working_directory,
-		     const gchar **argv, const gchar **envp, gboolean redirect_fds,
-		     gint *child_pid, IOThreadData **io_data, gchar **error)
-{	
-	InferiorHandle *inferior = handle->inferior;
-	int fd[2], ret, len, i;
-	ServerCommandError result;
-
-	*error = NULL;
-	inferior->redirect_fds = redirect_fds;
-
-	if (redirect_fds) {
-		pipe (inferior->output_fd);
-		pipe (inferior->error_fd);
-
-		*io_data = g_new0 (IOThreadData, 1);
-		(*io_data)->output_fd = inferior->output_fd[0];
-		(*io_data)->error_fd = inferior->error_fd[0];
-	} else {
-		*io_data = NULL;
-	}
-
-	pipe (fd);
-
-	*child_pid = fork ();
-	if (*child_pid == 0) {
-		gchar *error_message;
-		struct rlimit core_limit;
-		int open_max;
-
-		open_max = sysconf (_SC_OPEN_MAX);
-		for (i = 3; i < open_max; i++)
-			fcntl (i, F_SETFD, FD_CLOEXEC);
-
-		setsid ();
-
-		getrlimit (RLIMIT_CORE, &core_limit);
-		core_limit.rlim_cur = 0;
-		setrlimit (RLIMIT_CORE, &core_limit);
-
-		child_setup_func (inferior);
-		execve (argv [0], (char **) argv, (char **) envp);
-
-		error_message = g_strdup_printf ("Cannot exec `%s': %s", argv [0], g_strerror (errno));
-		len = strlen (error_message) + 1;
-		write (fd [1], &len, sizeof (len));
-		write (fd [1], error_message, len);
-		_exit (1);
-	} else if (*child_pid < 0) {
-		if (redirect_fds) {
-			close (inferior->output_fd[0]);
-			close (inferior->output_fd[1]);
-			close (inferior->error_fd[0]);
-			close (inferior->error_fd[1]);
-		}
-		close (fd [0]);
-		close (fd [1]);
-
-		*error = g_strdup_printf ("fork() failed: %s", g_strerror (errno));
-		return COMMAND_ERROR_CANNOT_START_TARGET;
-	}
-
-	if (redirect_fds) {
-		close (inferior->output_fd[1]);
-		close (inferior->error_fd[1]);
-	}
-	close (fd [1]);
-
-	ret = read (fd [0], &len, sizeof (len));
-
-	if (ret != 0) {
-		g_assert (ret == 4);
-
-		*error = g_malloc0 (len);
-		read (fd [0], *error, len);
-		close (fd [0]);
-		if (redirect_fds) {
-			close (inferior->output_fd[0]);
-			close (inferior->error_fd[0]);
-		}
-		return COMMAND_ERROR_CANNOT_START_TARGET;
-	}
-
-	close (fd [0]);
-
-	inferior->pid = *child_pid;
-
-#ifndef __MACH__
-	if (!_server_ptrace_wait_for_new_thread (handle))
-		return COMMAND_ERROR_INTERNAL_ERROR;
-#endif
-
-	result = _server_ptrace_setup_inferior (handle);
-	if (result != COMMAND_ERROR_NONE) {
-		if (redirect_fds) {
-			close (inferior->output_fd[0]);
-			close (inferior->error_fd[0]);
-		}
-		return result;
-	}
-
-#ifdef __MACH__
-	*child_pid = COMPOSED_PID(inferior->pid, inferior->os.thread_index);
-#endif
-
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_initialize_thread (ServerHandle *handle, guint32 pid, gboolean wait)
-{
-	InferiorHandle *inferior = handle->inferior;
-
-	inferior->is_thread = TRUE;
-
-#ifdef __MACH__
-	inferior->pid = GET_PID(pid);
-	inferior->os.thread = get_thread_from_index(GET_THREAD_INDEX(pid));
-#else
-	inferior->pid = pid;
-	if (wait && !_server_ptrace_wait_for_new_thread (handle))
-		return COMMAND_ERROR_INTERNAL_ERROR;
-#endif
-
-	return _server_ptrace_setup_inferior (handle);
-}
-
-static ServerCommandError
-server_ptrace_attach (ServerHandle *handle, guint32 pid)
-{
-	InferiorHandle *inferior = handle->inferior;
-
-	if (ptrace (PT_ATTACH, pid, NULL, 0) != 0) {
-		g_warning (G_STRLOC ": Can't attach to %d - %s", pid,
-			   g_strerror (errno));
-		return COMMAND_ERROR_CANNOT_START_TARGET;
-	}
-
-	inferior->pid = pid;
-	inferior->is_thread = TRUE;
-
-#ifndef __MACH__
-	if (!_server_ptrace_wait_for_new_thread (handle))
-		return COMMAND_ERROR_INTERNAL_ERROR;
-#endif
-
-	return _server_ptrace_setup_inferior (handle);
-}
-
-static void
-process_output (int fd, gboolean is_stderr, ChildOutputFunc func)
-{
-	char buffer [BUFSIZ + 2];
-	int count;
-
-	count = read (fd, buffer, BUFSIZ);
-	if (count < 0)
-		return;
-
-	buffer [count] = 0;
-	func (is_stderr, buffer);
-}
-
-void
-server_ptrace_io_thread_main (IOThreadData *io_data, ChildOutputFunc func)
-{
-	struct pollfd fds [2];
-	int ret;
-
-	fds [0].fd = io_data->output_fd;
-	fds [0].events = POLLIN | POLLHUP | POLLERR;
-	fds [0].revents = 0;
-	fds [1].fd = io_data->error_fd;
-	fds [1].events = POLLIN | POLLHUP | POLLERR;
-	fds [1].revents = 0;
-
-	while (1) {
-		ret = poll (fds, 2, -1);
-
-		if ((ret < 0) && (errno != EINTR))
-			break;
-
-		if (fds [0].revents & POLLIN)
-			process_output (io_data->output_fd, FALSE, func);
-		if (fds [1].revents & POLLIN)
-			process_output (io_data->error_fd, TRUE, func);
-
-		if ((fds [0].revents & (POLLHUP | POLLERR))
-		    || (fds [1].revents & (POLLHUP | POLLERR)))
-			break;
-	}
-
-	close (io_data->output_fd);
-	close (io_data->error_fd);
-	g_free (io_data);
-}
-
-static ServerCommandError
-server_ptrace_set_signal (ServerHandle *handle, guint32 sig, guint32 send_it)
-{
-	if (send_it)
-		kill (handle->inferior->pid, sig);
-	else
-		handle->inferior->last_signal = sig;
-	return COMMAND_ERROR_NONE;
-}
-
-static ServerCommandError
-server_ptrace_get_pending_signal (ServerHandle *handle, guint32 *signal)
-{
-	*signal = handle->inferior->last_signal;
-	return COMMAND_ERROR_NONE;
-}
-
-static void
-server_ptrace_set_runtime_info (ServerHandle *handle, MonoRuntimeInfo *mono_runtime)
-{
-	handle->mono_runtime = mono_runtime;
-}
-
-static guint32
-server_ptrace_get_current_pid (void)
-{
-	return getpid ();
-}
-
-static guint64
-server_ptrace_get_current_thread (void)
-{
-	return pthread_self ();
-}
-
-extern void GC_start_blocking (void);
-extern void GC_end_blocking (void);
-
-#ifdef __linux__
-#include "x86-linux-ptrace.c"
-#endif
-
-#ifdef __FreeBSD__
-#include "x86-freebsd-ptrace.c"
-#endif
-
-#ifdef __MACH__
-#include "darwin-ptrace.c"
-#endif
-
-#if defined(__i386__)
-#include "i386-arch.c"
-#elif defined(__x86_64__)
-#include "x86_64-arch.c"
-#else
-#error "Unknown architecture"
-#endif
-
-InferiorVTable i386_ptrace_inferior = {
-	server_ptrace_global_init,
-	server_ptrace_get_server_type,
-	server_ptrace_get_capabilities,
-	server_ptrace_create_inferior,
-	server_ptrace_initialize_process,
-	server_ptrace_initialize_thread,
-	server_ptrace_set_runtime_info,
-	server_ptrace_io_thread_main,
-	server_ptrace_spawn,
-	server_ptrace_attach,
-	server_ptrace_detach,
-	server_ptrace_finalize,
-	server_ptrace_global_wait,
-	server_ptrace_stop_and_wait,
-	server_ptrace_dispatch_event,
-	server_ptrace_dispatch_simple,
-	server_ptrace_get_target_info,
-	server_ptrace_continue,
-	server_ptrace_step,
-	server_ptrace_resume,
-	server_ptrace_get_frame,
-	server_ptrace_current_insn_is_bpt,
-	server_ptrace_peek_word,
-	server_ptrace_read_memory,
-	server_ptrace_write_memory,
-	server_ptrace_call_method,
-	server_ptrace_call_method_1,
-	server_ptrace_call_method_2,
-	server_ptrace_call_method_3,
-	server_ptrace_call_method_invoke,
-	server_ptrace_execute_instruction,
-	server_ptrace_mark_rti_frame,
-	server_ptrace_abort_invoke,
-	server_ptrace_insert_breakpoint,
-	server_ptrace_insert_hw_breakpoint,
-	server_ptrace_remove_breakpoint,
-	server_ptrace_enable_breakpoint,
-	server_ptrace_disable_breakpoint,
-	server_ptrace_get_breakpoints,
-	server_ptrace_get_registers,
-	server_ptrace_set_registers,
-	server_ptrace_stop,
-	server_ptrace_set_signal,
-	server_ptrace_get_pending_signal,
-	server_ptrace_kill,
-	server_ptrace_get_signal_info,
-	server_ptrace_get_threads,
-	server_ptrace_get_application,
-	server_ptrace_detach_after_fork,
-	server_ptrace_push_registers,
-	server_ptrace_pop_registers,
-	server_ptrace_get_callback_frame,
-	server_ptrace_restart_notification,
-	server_ptrace_get_registers_from_core_file,
-	server_ptrace_get_current_pid,
-	server_ptrace_get_current_thread
-};
diff --git a/sysdeps/server/x86-ptrace.h b/sysdeps/server/x86-ptrace.h
deleted file mode 100644
index ae074d4..0000000
--- a/sysdeps/server/x86-ptrace.h
+++ /dev/null
@@ -1,111 +0,0 @@
-#ifndef __MONO_DEBUGGER_X86_64_PTRACE_H__
-#define __MONO_DEBUGGER_X86_64_PTRACE_H__
-
-typedef struct OSData OSData;
-
-struct InferiorHandle
-{
-	OSData os;
-
-	guint32 pid;
-	int stepping;
-	int last_signal;
-	int redirect_fds;
-	int output_fd [2], error_fd [2];
-	int is_thread;
-};
-
-#ifndef PTRACE_SETOPTIONS
-#define PTRACE_SETOPTIONS	0x4200
-#endif
-#ifndef PTRACE_GETEVENTMSG
-#define PTRACE_GETEVENTMSG	0x4201
-#endif
-
-#ifndef PTRACE_EVENT_FORK
-
-/* options set using PTRACE_SETOPTIONS */
-#define PTRACE_O_TRACESYSGOOD	0x00000001
-#define PTRACE_O_TRACEFORK	0x00000002
-#define PTRACE_O_TRACEVFORK	0x00000004
-#define PTRACE_O_TRACECLONE	0x00000008
-#define PTRACE_O_TRACEEXEC	0x00000010
-#define PTRACE_O_TRACEVFORKDONE	0x00000020
-#define PTRACE_O_TRACEEXIT	0x00000040
-
-/* Wait extended result codes for the above trace options.  */
-#define PTRACE_EVENT_FORK	1
-#define PTRACE_EVENT_VFORK	2
-#define PTRACE_EVENT_CLONE	3
-#define PTRACE_EVENT_EXEC	4
-#define PTRACE_EVENT_VFORKDONE	5
-#define PTRACE_EVENT_EXIT	6
-
-#endif /* PTRACE_EVENT_FORK */
-
-static ServerCommandError
-_server_ptrace_check_errno (InferiorHandle *);
-
-static ServerCommandError
-_server_ptrace_make_memory_executable (ServerHandle *handle, guint64 start, guint32 size);
-
-static ServerCommandError
-_server_ptrace_get_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs);
-
-static ServerCommandError
-_server_ptrace_set_registers (InferiorHandle *inferior, INFERIOR_REGS_TYPE *regs);
-
-static ServerCommandError
-_server_ptrace_get_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs);
-
-static ServerCommandError
-_server_ptrace_set_fp_registers (InferiorHandle *inferior, INFERIOR_FPREGS_TYPE *regs);
-
-static ServerCommandError
-_server_ptrace_read_memory (ServerHandle *handle, guint64 start,
-			    guint32 size, gpointer buffer);
-
-static ServerCommandError
-server_ptrace_read_memory (ServerHandle *handle, guint64 start, guint32 size, gpointer buffer);
-
-static ServerCommandError
-server_ptrace_write_memory (ServerHandle *handle, guint64 start,
-			    guint32 size, gconstpointer buffer);
-
-static ServerCommandError
-server_ptrace_poke_word (ServerHandle *handle, guint64 addr, gsize value);
-
-static ServerCommandError
-_server_ptrace_set_dr (InferiorHandle *handle, int regnum, guint64 value);
-
-static ServerCommandError
-_server_ptrace_get_dr (InferiorHandle *handle, int regnum, guint64 *value);
-
-static ServerCommandError
-server_ptrace_continue (ServerHandle *handle);
-
-static ServerCommandError
-server_ptrace_step (ServerHandle *handle);
-
-static ServerCommandError
-server_ptrace_kill (ServerHandle *handle);
-
-static ServerCommandError
-server_ptrace_stop (ServerHandle *handle);
-
-static ServerCommandError
-server_ptrace_stop_and_wait (ServerHandle *handle, guint32 *status);
-
-static ServerCommandError
-_server_ptrace_setup_inferior (ServerHandle *handle);
-
-static void
-_server_ptrace_finalize_inferior (ServerHandle *handle);
-
-static ServerCommandError
-server_ptrace_get_signal_info (ServerHandle *handle, SignalInfo **sinfo);
-
-static gboolean
-_server_ptrace_wait_for_new_thread (ServerHandle *handle);
-
-#endif
diff --git a/test/Makefile.in b/test/Makefile.in
index f81d542..66dc310 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -129,6 +129,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/test/framework/Makefile.in b/test/framework/Makefile.in
index 18fcfb3..c65b213 100644
--- a/test/framework/Makefile.in
+++ b/test/framework/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/test/misc/Makefile.in b/test/misc/Makefile.in
index c140baf..0156f14 100644
--- a/test/misc/Makefile.in
+++ b/test/misc/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/test/src/Makefile.in b/test/src/Makefile.in
index 36e7704..1e7e91e 100644
--- a/test/src/Makefile.in
+++ b/test/src/Makefile.in
@@ -156,6 +156,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@
diff --git a/test/testsuite/Makefile.in b/test/testsuite/Makefile.in
index 0e629ac..9e51cba 100644
--- a/test/testsuite/Makefile.in
+++ b/test/testsuite/Makefile.in
@@ -117,6 +117,7 @@ PATH = @PATH@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
 RANLIB = @RANLIB@
+READLINE_DEPLIBS = @READLINE_DEPLIBS@
 SED = @SED@
 SERVER_DEPENDENCIES_CFLAGS = @SERVER_DEPENDENCIES_CFLAGS@
 SERVER_DEPENDENCIES_LIBS = @SERVER_DEPENDENCIES_LIBS@

-- 
mono-debugger



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