[Glibc-bsd-commits] r4565 - trunk/glibc-ports/kfreebsd/fbtl
Petr Salinger
ps-guest at alioth.debian.org
Mon Jul 8 12:42:44 UTC 2013
Author: ps-guest
Date: 2013-06-22 08:11:16 +0000 (Sat, 22 Jun 2013)
New Revision: 4565
Added:
trunk/glibc-ports/kfreebsd/fbtl/raise.c
Log:
skeleton for raise
Added: trunk/glibc-ports/kfreebsd/fbtl/raise.c
===================================================================
--- trunk/glibc-ports/kfreebsd/fbtl/raise.c (rev 0)
+++ trunk/glibc-ports/kfreebsd/fbtl/raise.c 2013-06-22 08:11:16 UTC (rev 4565)
@@ -0,0 +1,63 @@
+/* Copyright (C) 2002-2013 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper at redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <sysdep.h>
+#include <nptl/pthreadP.h>
+#include <kernel-features.h>
+
+
+int
+raise (sig)
+ int sig;
+{
+#if 1
+#warning TODO
+#else
+ struct pthread *pd = THREAD_SELF;
+ pid_t pid = THREAD_GETMEM (pd, pid);
+ pid_t selftid = THREAD_GETMEM (pd, tid);
+ if (selftid == 0)
+ {
+ /* This system call is not supposed to fail. */
+#ifdef INTERNAL_SYSCALL
+ INTERNAL_SYSCALL_DECL (err);
+ selftid = INTERNAL_SYSCALL (gettid, err, 0);
+#else
+ selftid = INLINE_SYSCALL (gettid, 0);
+#endif
+ THREAD_SETMEM (pd, tid, selftid);
+
+ /* We do not set the PID field in the TID here since we might be
+ called from a signal handler while the thread executes fork. */
+ pid = selftid;
+ }
+ else
+ /* raise is an async-safe function. It could be called while the
+ fork/vfork function temporarily invalidated the PID field. Adjust for
+ that. */
+ if (__builtin_expect (pid <= 0, 0))
+ pid = (pid & INT_MAX) == 0 ? selftid : -pid;
+
+ return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
+#endif
+}
+libc_hidden_def (raise)
+weak_alias (raise, gsignal)
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