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2004-05-07 H.J. Lu <hongjiu.lu@intel.com>

Browse source 
* readelf.c (section_groups): New.
	(group_count): New.
	(section_headers_groups): New.
	(process_section_groups): Populate group_count, section_groups
	and section_headers_groups.
	(process_unwind): Support section group.
	(process_object): Always call process_section_groups. Free
	section_groups and section_headers_groups.
This commit is contained in:
H.J. Lu 2004-05-07 15:33:36 +00:00
parent 5f9b892013
commit e4b17d5c7a
2 changed files with 133 additions and 16 deletions
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11
binutils/ChangeLog
View file

@ -1,3 +1,14 @@
2004-05-07 H.J. Lu <hongjiu.lu@intel.com>
* readelf.c (section_groups): New.
(group_count): New.
(section_headers_groups): New.
(process_section_groups): Populate group_count, section_groups
and section_headers_groups.
(process_unwind): Support section group.
(process_object): Always call process_section_groups. Free
section_groups and section_headers_groups.
2004-04-30 H.J. Lu <hongjiu.lu@intel.com>
* readelf.c (process_section_headers): Use %3lu on sh_info.

124
binutils/readelf.c
View file

@ -164,6 +164,23 @@ int do_arch;
int do_notes;
int is_32bit_elf;
struct group_list
{
struct group_list *next;
unsigned int section_index;
};
struct group
{
struct group_list *root;
unsigned int group_index;
};
struct group *section_groups;
size_t group_count = 0;
struct group **section_headers_groups;
/* A dynamic array of flags indicating which sections require dumping. */
char *dump_sects = NULL;
unsigned int num_dump_sects = 0;
@ -3732,9 +3749,7 @@ process_section_groups (FILE *file)
{
Elf_Internal_Shdr *section;
unsigned int i;
if (!do_section_groups)
return 1;
struct group *group;
if (elf_header.e_shnum == 0)
{
@ -3750,10 +3765,33 @@ process_section_groups (FILE *file)
abort ();
}
section_headers_groups = calloc (elf_header.e_shnum,
sizeof (struct group *));
if (section_headers_groups == NULL)
{
error (_("Out of memory\n"));
return 0;
}
/* Scan the sections for the group section. */
for (i = 0, section = section_headers;
i < elf_header.e_shnum;
i++, section++)
if (section->sh_type == SHT_GROUP)
group_count++;
section_groups = calloc (group_count, sizeof (struct group));
if (section_groups == NULL)
{
error (_("Out of memory\n"));
return 0;
}
for (i = 0, section = section_headers, group = section_groups;
i < elf_header.e_shnum;
i++, section++)
{
if (section->sh_type == SHT_GROUP)
{
@ -3805,24 +3843,54 @@ process_section_groups (FILE *file)
size = (section->sh_size / section->sh_entsize) - 1;
entry = byte_get (indices, 4);
indices += 4;
if (do_section_groups)
{
printf ("\n%s group section `%s' [%s] contains %u sections:\n",
get_group_flags (entry), name, group_name, size);
printf (_(" [Index] Name\n"));
}
group->group_index = i;
for (j = 0; j < size; j++)
{
struct group_list *g;
entry = byte_get (indices, 4);
indices += 4;
if (section_headers_groups [SECTION_HEADER_INDEX (entry)]
!= NULL)
{
error (_("section [%5u] already in group section [%5u]\n"),
entry, section_headers_groups [SECTION_HEADER_INDEX (entry)]->group_index);
continue;
}
section_headers_groups [SECTION_HEADER_INDEX (entry)]
= group;
if (do_section_groups)
{
sec = SECTION_HEADER (entry);
printf (" [%5u] %s\n",
entry, SECTION_NAME (sec));
}
g = xmalloc (sizeof (struct group_list));
g->section_index = entry;
g->next = group->root;
group->root = g;
}
if (strtab)
free (strtab);
if (start)
free (start);
group++;
}
}
@ -4302,8 +4370,24 @@ process_unwind (FILE *file)
unwstart = i + 1;
len = sizeof (ELF_STRING_ia64_unwind_once) - 1;
if (strncmp (SECTION_NAME (unwsec), ELF_STRING_ia64_unwind_once,
len) == 0)
if ((unwsec->sh_flags & SHF_GROUP) != 0)
{
/* We need to find which section group it is in. */
struct group_list *g = section_headers_groups [i]->root;
for (; g != NULL; g = g->next)
{
sec = SECTION_HEADER (g->section_index);
if (strcmp (SECTION_NAME (sec),
ELF_STRING_ia64_unwind_info) == 0)
break;
}
if (g == NULL)
i = elf_header.e_shnum;
}
else if (strncmp (SECTION_NAME (unwsec),
ELF_STRING_ia64_unwind_once, len) == 0)
{
/* .gnu.linkonce.ia64unw.FOO -> .gnu.linkonce.ia64unwi.FOO */
len2 = sizeof (ELF_STRING_ia64_unwind_info_once) - 1;
@ -10432,9 +10516,10 @@ process_object (char *file_name, FILE *file)
if (! process_file_header ())
return 1;
if (! process_section_headers (file))
if (! process_section_headers (file)
|| ! process_section_groups (file))
{
/* Without loaded section headers we
/* Without loaded section headers and section groups we
cannot process lots of things. */
do_unwind = do_version = do_dump = do_arch = 0;
@ -10457,8 +10542,6 @@ process_object (char *file_name, FILE *file)
process_section_contents (file);
process_section_groups (file);
process_corefile_contents (file);
process_gnu_liblist (file);
@ -10503,6 +10586,29 @@ process_object (char *file_name, FILE *file)
dynamic_syminfo = NULL;
}
if (section_headers_groups)
{
free (section_headers_groups);
section_headers_groups = NULL;
}
if (section_groups)
{
struct group_list *g, *next;
for (i = 0; i < group_count; i++)
{
for (g = section_groups [i].root; g != NULL; g = next)
{
next = g->next;
free (g);
}
}
free (section_groups);
section_groups = NULL;
}
return 0;
}