[Crosstoolchain-logs] [device-tree-compiler] 282/357: dtc: Use the same endian-conversion functions as libfdt
Hector Oron
zumbi at moszumanska.debian.org
Thu Dec 8 17:06:23 UTC 2016
This is an automated email from the git hooks/post-receive script.
zumbi pushed a commit to branch upstream/1.3.x
in repository device-tree-compiler.
commit c8c374b8565081da08e3d1d73df8ddb0d6a66ae3
Author: David Gibson <david at gibson.dropbear.id.au>
Date: Wed Jun 25 14:27:53 2008 +1000
dtc: Use the same endian-conversion functions as libfdt
Currently both libfdt and dtc define a set of endian conversion macros
for accessing the device tree blob which is always big-endian. libfdt
uses names like cpu_to_fdt32() and dtc uses names like cpu_to_be32 (as
the Linux kernel). This patch switches dtc over to using the libfdt
macros (including libfdt_env.h to supply them). This has a couple of
small advantages:
- Removes some code duplication
- Will make conversion a bit easier if we ever need to produce
little-endian device tree blobs.
- dtc no longer needs to pull in netinet/in.h simply for the
ntohs() and ntohl() functions
Signed-off-by: David Gibson <david at gibson.dropbear.id.au>
---
checks.c | 2 +-
data.c | 8 ++++----
dtc.h | 17 +---------------
flattree.c | 66 +++++++++++++++++++++++++++---------------------------------
livetree.c | 2 +-
treesource.c | 2 +-
6 files changed, 38 insertions(+), 59 deletions(-)
diff --git a/checks.c b/checks.c
index 34941de..0066fb3 100644
--- a/checks.c
+++ b/checks.c
@@ -363,7 +363,7 @@ static void fixup_phandle_references(struct check *c, struct node *dt,
}
phandle = get_node_phandle(dt, refnode);
- *((cell_t *)(prop->val.val + m->offset)) = cpu_to_be32(phandle);
+ *((cell_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle);
}
}
CHECK(phandle_references, NULL, NULL, fixup_phandle_references, NULL, ERROR,
diff --git a/data.c b/data.c
index 588c87e..dd2e3d3 100644
--- a/data.c
+++ b/data.c
@@ -247,7 +247,7 @@ struct data data_merge(struct data d1, struct data d2)
struct data data_append_cell(struct data d, cell_t word)
{
- cell_t beword = cpu_to_be32(word);
+ cell_t beword = cpu_to_fdt32(word);
return data_append_data(d, &beword, sizeof(beword));
}
@@ -256,15 +256,15 @@ struct data data_append_re(struct data d, const struct fdt_reserve_entry *re)
{
struct fdt_reserve_entry bere;
- bere.address = cpu_to_be64(re->address);
- bere.size = cpu_to_be64(re->size);
+ bere.address = cpu_to_fdt64(re->address);
+ bere.size = cpu_to_fdt64(re->size);
return data_append_data(d, &bere, sizeof(bere));
}
struct data data_append_addr(struct data d, uint64_t addr)
{
- uint64_t beaddr = cpu_to_be64(addr);
+ uint64_t beaddr = cpu_to_fdt64(addr);
return data_append_data(d, &beaddr, sizeof(beaddr));
}
diff --git a/dtc.h b/dtc.h
index 7154bfd..08d54c8 100644
--- a/dtc.h
+++ b/dtc.h
@@ -30,10 +30,8 @@
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
-#include <netinet/in.h>
-#include <endian.h>
-#include <byteswap.h>
+#include <libfdt_env.h>
#include <fdt.h>
#define DEFAULT_FDT_VERSION 17
@@ -77,19 +75,6 @@ static inline void *xrealloc(void *p, size_t len)
typedef uint32_t cell_t;
-#define cpu_to_be16(x) htons(x)
-#define be16_to_cpu(x) ntohs(x)
-
-#define cpu_to_be32(x) htonl(x)
-#define be32_to_cpu(x) ntohl(x)
-
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define cpu_to_be64(x) (x)
-#define be64_to_cpu(x) (x)
-#else
-#define cpu_to_be64(x) bswap_64(x)
-#define be64_to_cpu(x) bswap_64(x)
-#endif
#define streq(a, b) (strcmp((a), (b)) == 0)
#define strneq(a, b, n) (strncmp((a), (b), (n)) == 0)
diff --git a/flattree.c b/flattree.c
index 49514f8..76acd28 100644
--- a/flattree.c
+++ b/flattree.c
@@ -170,17 +170,11 @@ static void asm_emit_data(void *e, struct data d)
while ((d.len - off) >= sizeof(uint32_t)) {
fprintf(f, "\t.long\t0x%x\n",
- be32_to_cpu(*((uint32_t *)(d.val+off))));
+ fdt32_to_cpu(*((uint32_t *)(d.val+off))));
off += sizeof(uint32_t);
}
- if ((d.len - off) >= sizeof(uint16_t)) {
- fprintf(f, "\t.short\t0x%hx\n",
- be16_to_cpu(*((uint16_t *)(d.val+off))));
- off += sizeof(uint16_t);
- }
-
- if ((d.len - off) >= 1) {
+ while ((d.len - off) >= 1) {
fprintf(f, "\t.byte\t0x%hhx\n", d.val[off]);
off += 1;
}
@@ -333,25 +327,25 @@ static void make_fdt_header(struct fdt_header *fdt,
memset(fdt, 0xff, sizeof(*fdt));
- fdt->magic = cpu_to_be32(FDT_MAGIC);
- fdt->version = cpu_to_be32(vi->version);
- fdt->last_comp_version = cpu_to_be32(vi->last_comp_version);
+ fdt->magic = cpu_to_fdt32(FDT_MAGIC);
+ fdt->version = cpu_to_fdt32(vi->version);
+ fdt->last_comp_version = cpu_to_fdt32(vi->last_comp_version);
/* Reserve map should be doubleword aligned */
reserve_off = ALIGN(vi->hdr_size, 8);
- fdt->off_mem_rsvmap = cpu_to_be32(reserve_off);
- fdt->off_dt_struct = cpu_to_be32(reserve_off + reservesize);
- fdt->off_dt_strings = cpu_to_be32(reserve_off + reservesize
+ fdt->off_mem_rsvmap = cpu_to_fdt32(reserve_off);
+ fdt->off_dt_struct = cpu_to_fdt32(reserve_off + reservesize);
+ fdt->off_dt_strings = cpu_to_fdt32(reserve_off + reservesize
+ dtsize);
- fdt->totalsize = cpu_to_be32(reserve_off + reservesize + dtsize + strsize);
+ fdt->totalsize = cpu_to_fdt32(reserve_off + reservesize + dtsize + strsize);
if (vi->flags & FTF_BOOTCPUID)
- fdt->boot_cpuid_phys = cpu_to_be32(boot_cpuid_phys);
+ fdt->boot_cpuid_phys = cpu_to_fdt32(boot_cpuid_phys);
if (vi->flags & FTF_STRTABSIZE)
- fdt->size_dt_strings = cpu_to_be32(strsize);
+ fdt->size_dt_strings = cpu_to_fdt32(strsize);
if (vi->flags & FTF_STRUCTSIZE)
- fdt->size_dt_struct = cpu_to_be32(dtsize);
+ fdt->size_dt_struct = cpu_to_fdt32(dtsize);
}
void dt_to_blob(FILE *f, struct boot_info *bi, int version)
@@ -385,20 +379,20 @@ void dt_to_blob(FILE *f, struct boot_info *bi, int version)
* If the user asked for more space than is used, adjust the totalsize.
*/
if (minsize > 0) {
- padlen = minsize - be32_to_cpu(fdt.totalsize);
+ padlen = minsize - fdt32_to_cpu(fdt.totalsize);
if ((padlen < 0) && (quiet < 1))
fprintf(stderr,
"Warning: blob size %d >= minimum size %d\n",
- be32_to_cpu(fdt.totalsize), minsize);
+ fdt32_to_cpu(fdt.totalsize), minsize);
}
if (padsize > 0)
padlen = padsize;
if (padlen > 0) {
- int tsize = be32_to_cpu(fdt.totalsize);
+ int tsize = fdt32_to_cpu(fdt.totalsize);
tsize += padlen;
- fdt.totalsize = cpu_to_be32(tsize);
+ fdt.totalsize = cpu_to_fdt32(tsize);
}
/*
@@ -583,7 +577,7 @@ static uint32_t flat_read_word(struct inbuf *inb)
flat_read_chunk(inb, &val, sizeof(val));
- return be32_to_cpu(val);
+ return fdt32_to_cpu(val);
}
static void flat_realign(struct inbuf *inb, int align)
@@ -689,8 +683,8 @@ static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb)
p = inb->ptr;
while (1) {
flat_read_chunk(inb, &re, sizeof(re));
- re.address = be64_to_cpu(re.address);
- re.size = be64_to_cpu(re.size);
+ re.address = fdt64_to_cpu(re.address);
+ re.size = fdt64_to_cpu(re.size);
if (re.size == 0)
break;
@@ -810,7 +804,7 @@ struct boot_info *dt_from_blob(const char *fname)
die("Mysterious short read reading magic number\n");
}
- magic = be32_to_cpu(magic);
+ magic = fdt32_to_cpu(magic);
if (magic != FDT_MAGIC)
die("Blob has incorrect magic number\n");
@@ -824,15 +818,15 @@ struct boot_info *dt_from_blob(const char *fname)
die("Mysterious short read reading blob size\n");
}
- totalsize = be32_to_cpu(totalsize);
+ totalsize = fdt32_to_cpu(totalsize);
if (totalsize < FDT_V1_SIZE)
die("DT blob size (%d) is too small\n", totalsize);
blob = xmalloc(totalsize);
fdt = (struct fdt_header *)blob;
- fdt->magic = cpu_to_be32(magic);
- fdt->totalsize = cpu_to_be32(totalsize);
+ fdt->magic = cpu_to_fdt32(magic);
+ fdt->totalsize = cpu_to_fdt32(totalsize);
sizeleft = totalsize - sizeof(magic) - sizeof(totalsize);
p = blob + sizeof(magic) + sizeof(totalsize);
@@ -851,11 +845,11 @@ struct boot_info *dt_from_blob(const char *fname)
p += rc;
}
- off_dt = be32_to_cpu(fdt->off_dt_struct);
- off_str = be32_to_cpu(fdt->off_dt_strings);
- off_mem_rsvmap = be32_to_cpu(fdt->off_mem_rsvmap);
- version = be32_to_cpu(fdt->version);
- boot_cpuid_phys = be32_to_cpu(fdt->boot_cpuid_phys);
+ off_dt = fdt32_to_cpu(fdt->off_dt_struct);
+ off_str = fdt32_to_cpu(fdt->off_dt_strings);
+ off_mem_rsvmap = fdt32_to_cpu(fdt->off_mem_rsvmap);
+ version = fdt32_to_cpu(fdt->version);
+ boot_cpuid_phys = fdt32_to_cpu(fdt->boot_cpuid_phys);
if (off_mem_rsvmap >= totalsize)
die("Mem Reserve structure offset exceeds total size\n");
@@ -867,7 +861,7 @@ struct boot_info *dt_from_blob(const char *fname)
die("String table offset exceeds total size\n");
if (version >= 3) {
- uint32_t size_str = be32_to_cpu(fdt->size_dt_strings);
+ uint32_t size_str = fdt32_to_cpu(fdt->size_dt_strings);
if (off_str+size_str > totalsize)
die("String table extends past total size\n");
inbuf_init(&strbuf, blob + off_str, blob + off_str + size_str);
@@ -876,7 +870,7 @@ struct boot_info *dt_from_blob(const char *fname)
}
if (version >= 17) {
- size_dt = be32_to_cpu(fdt->size_dt_struct);
+ size_dt = fdt32_to_cpu(fdt->size_dt_struct);
if (off_dt+size_dt > totalsize)
die("Structure block extends past total size\n");
}
diff --git a/livetree.c b/livetree.c
index 51680ae..ba7e263 100644
--- a/livetree.c
+++ b/livetree.c
@@ -204,7 +204,7 @@ struct property *get_property(struct node *node, const char *propname)
cell_t propval_cell(struct property *prop)
{
assert(prop->val.len == sizeof(cell_t));
- return be32_to_cpu(*((cell_t *)prop->val.val));
+ return fdt32_to_cpu(*((cell_t *)prop->val.val));
}
struct node *get_subnode(struct node *node, const char *nodename)
diff --git a/treesource.c b/treesource.c
index 468d6b1..c32e818 100644
--- a/treesource.c
+++ b/treesource.c
@@ -147,7 +147,7 @@ static void write_propval_cells(FILE *f, struct data val)
m = m->next;
}
- fprintf(f, "0x%x", be32_to_cpu(*cp++));
+ fprintf(f, "0x%x", fdt32_to_cpu(*cp++));
if ((void *)cp >= propend)
break;
fprintf(f, " ");
--
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