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bfd/

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2004-05-02  H.J. Lu  <hongjiu.lu@intel.com>

	* section.c (bfd_get_section_by_name_if): New.
	* bfd-in2.h: Regenerated.

gas/

2004-05-02  H.J. Lu  <hongjiu.lu@intel.com>

	* config/obj-elf.c (get_section): Return bfd_boolean.
	(obj_elf_change_section): Call bfd_get_section_by_name_if
	instead of bfd_map_over_sections.
This commit is contained in:
H.J. Lu 2004-05-02 14:36:25 +00:00
parent eb4556d736
commit fafe6678a5
5 changed files with 84 additions and 36 deletions
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5
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
2004-05-02 H.J. Lu <hongjiu.lu@intel.com>
* section.c (bfd_get_section_by_name_if): New.
* bfd-in2.h: Regenerated.
2004-05-02 Alan Modra <amodra@bigpond.net.au>
* som.c (som_bfd_is_group_section): Define.

6
bfd/bfd-in2.h
View File

@ -1433,6 +1433,12 @@ void bfd_section_list_clear (bfd *);
asection *bfd_get_section_by_name (bfd *abfd, const char *name);
asection *bfd_get_section_by_name_if
(bfd *abfd,
const char *name,
bfd_boolean (*func) (bfd *abfd, asection *sect, void *obj),
void *obj);
char *bfd_get_unique_section_name
(bfd *abfd, const char *templat, int *count);

51
bfd/section.c
View File

@ -799,6 +799,57 @@ bfd_get_section_by_name (bfd *abfd, const char *name)
return NULL;
}
/*
FUNCTION
bfd_get_section_by_name_if
SYNOPSIS
asection *bfd_get_section_by_name_if
(bfd *abfd,
const char *name,
bfd_boolean (*func) (bfd *abfd, asection *sect, void *obj),
void *obj);
DESCRIPTION
Call the provided function @var{func} for each section
attached to the BFD @var{abfd} whose name matches @var{name},
passing @var{obj} as an argument. The function will be called
as if by
| func (abfd, the_section, obj);
It returns the first section for which @var{func} returns true,
otherwise <<NULL>>.
*/
asection *
bfd_get_section_by_name_if (bfd *abfd, const char *name,
bfd_boolean (*operation) (bfd *,
asection *,
void *),
void *user_storage)
{
struct section_hash_entry *sh;
unsigned long hash;
sh = section_hash_lookup (&abfd->section_htab, name, FALSE, FALSE);
if (sh == NULL)
return NULL;
hash = sh->root.hash;
do
{
if ((*operation) (abfd, &sh->section, user_storage))
return &sh->section;
sh = (struct section_hash_entry *) sh->root.next;
}
while (sh != NULL && sh->root.hash == hash
&& strcmp (sh->root.string, name) == 0);
return NULL;
}
/*
FUNCTION
bfd_get_unique_section_name

6
gas/ChangeLog
View File

@ -1,3 +1,9 @@
2004-05-02 H.J. Lu <hongjiu.lu@intel.com>
* config/obj-elf.c (get_section): Return bfd_boolean.
(obj_elf_change_section): Call bfd_get_section_by_name_if
instead of bfd_map_over_sections.
2004-04-30 H.J. Lu <hongjiu.lu@intel.com>
* config/obj-elf.c (get_section): New function.

52
gas/config/obj-elf.c
View File

@ -469,32 +469,16 @@ struct section_stack
static struct section_stack *section_stack;
struct section_group
{
const char *name;
const char *group_name;
asection *section;
};
static void
static bfd_boolean
get_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf)
{
struct section_group *group = inf;
const char *gname = inf;
const char *group_name = elf_group_name (sec);
/* Check if we have found the section we are looking for. */
if (group->section)
return;
if ((sec->name == group->name
|| (sec->name != NULL
&& group->name != NULL
&& strcmp (sec->name, group->name) == 0))
&& (group_name == group->group_name
return (group_name == gname
|| (group_name != NULL
&& group->group_name != NULL
&& strcmp (group_name, group->group_name) == 0)))
group->section = sec;
&& gname != NULL
&& strcmp (group_name, gname) == 0));
}
/* Handle the .section pseudo-op. This code supports two different
@ -524,10 +508,10 @@ obj_elf_change_section (const char *name,
int linkonce,
int push)
{
asection *old_sec;
segT sec;
flagword flags;
const struct bfd_elf_special_section *ssect;
struct section_group group;
#ifdef md_flush_pending_output
md_flush_pending_output ();
@ -548,14 +532,11 @@ obj_elf_change_section (const char *name,
previous_section = now_seg;
previous_subsection = now_subseg;
group.name = name;
group.group_name = group_name;
group.section = NULL;
bfd_map_over_sections (stdoutput, get_section, &group);
if (group.section)
old_sec = bfd_get_section_by_name_if (stdoutput, name, get_section,
(void *) group_name);
if (old_sec)
{
sec = group.section;
sec = old_sec;
subseg_set (sec, 0);
}
else
@ -571,7 +552,7 @@ obj_elf_change_section (const char *name,
type = ssect->type;
else if (type != ssect->type)
{
if (group.section == NULL
if (old_sec == NULL
/* FIXME: gcc, as of 2002-10-22, will emit
.section .init_array,"aw",@progbits
@ -595,7 +576,7 @@ obj_elf_change_section (const char *name,
}
}
if (group.section == NULL && (attr & ~ssect->attr) != 0)
if (old_sec == NULL && (attr & ~ssect->attr) != 0)
{
/* As a GNU extension, we permit a .note section to be
allocatable. If the linker sees an allocatable .note
@ -627,7 +608,7 @@ obj_elf_change_section (const char *name,
override = TRUE;
}
}
if (!override && group.section == NULL)
if (!override && old_sec == NULL)
attr |= ssect->attr;
}
@ -652,7 +633,7 @@ obj_elf_change_section (const char *name,
if (linkonce)
flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
if (group.section == NULL)
if (old_sec == NULL)
{
symbolS *secsym;
@ -677,14 +658,13 @@ obj_elf_change_section (const char *name,
/* If section attributes are specified the second time we see a
particular section, then check that they are the same as we
saw the first time. */
if (((group.section->flags ^ flags)
if (((old_sec->flags ^ flags)
& (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
| SEC_EXCLUDE | SEC_SORT_ENTRIES | SEC_MERGE | SEC_STRINGS
| SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD
| SEC_THREAD_LOCAL)))
as_warn (_("ignoring changed section attributes for %s"), name);
if ((flags & SEC_MERGE)
&& group.section->entsize != (unsigned) entsize)
if ((flags & SEC_MERGE) && old_sec->entsize != (unsigned) entsize)
as_warn (_("ignoring changed section entity size for %s"), name);
}