OpenE2K
/
binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

* elflink.c (elf_gc_sweep): Move gcc_except_table code.. 

(bfd_elf_gc_sections): ..to here.
This commit is contained in:
Alan Modra 2005-07-26 11:47:05 +00:00
parent c5f5f1f476
commit 9e8cc8b4bf
2 changed files with 51 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
2005-07-26 Alan Modra <amodra@bigpond.net.au>
* elflink.c (elf_gc_sweep): Move gcc_except_table code..
(bfd_elf_gc_sections): ..to here.
2005-07-25 DJ Delorie <dj@redhat.com>
* reloc.c: Remove unused M32C relocs, add BFD_RELOC_M32C_HI8.
@ -114,10 +119,10 @@
2005-07-18 Nick Clifton <nickc@redhat.com>
* config.bfd: Move m32c entry to correct location.
* archures.c: Likewise.
* configure.in: Likewise.
* configure: Regenerate.
* targets.c: Move ms1 vector to correct location.
* archures.c: Likewise.
* configure.in: Likewise.
* configure: Regenerate.
* targets.c: Move ms1 vector to correct location.
2005-07-18 Jan Beulich <jbeulich@novell.com>

77
bfd/elflink.c
View File

@ -8912,41 +8912,6 @@ elf_gc_sweep (struct bfd_link_info *info, gc_sweep_hook_fn gc_sweep_hook)
if (o->gc_mark)
continue;
/* Keep .gcc_except_table.* if the associated .text.* is
marked. This isn't very nice, but the proper solution,
splitting .eh_frame up and using comdat doesn't pan out
easily due to needing special relocs to handle the
difference of two symbols in separate sections.
Don't keep code sections referenced by .eh_frame. */
if (o->gc_mark_from_eh && (o->flags & SEC_CODE) == 0)
{
if (strncmp (o->name, ".gcc_except_table.", 18) == 0)
{
unsigned long len;
char *fn_name;
asection *fn_text;
len = strlen (o->name + 18) + 1;
fn_name = bfd_malloc (len + 6);
if (fn_name == NULL)
return FALSE;
memcpy (fn_name, ".text.", 6);
memcpy (fn_name + 6, o->name + 18, len);
fn_text = bfd_get_section_by_name (sub, fn_name);
free (fn_name);
if (fn_text != NULL && fn_text->gc_mark)
o->gc_mark = 1;
}
/* If not using specially named exception table section,
then keep whatever we are using. */
else
o->gc_mark = 1;
if (o->gc_mark)
continue;
}
/* Skip sweeping sections already excluded. */
if (o->flags & SEC_EXCLUDE)
continue;
@ -9183,6 +9148,48 @@ bfd_elf_gc_sections (bfd *abfd, struct bfd_link_info *info)
return FALSE;
}
/* ... again for sections marked from eh_frame. */
for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
{
asection *o;
if (bfd_get_flavour (sub) != bfd_target_elf_flavour)
continue;
/* Keep .gcc_except_table.* if the associated .text.* is
marked. This isn't very nice, but the proper solution,
splitting .eh_frame up and using comdat doesn't pan out
easily due to needing special relocs to handle the
difference of two symbols in separate sections.
Don't keep code sections referenced by .eh_frame. */
for (o = sub->sections; o != NULL; o = o->next)
if (!o->gc_mark && o->gc_mark_from_eh && (o->flags & SEC_CODE) == 0)
{
if (strncmp (o->name, ".gcc_except_table.", 18) == 0)
{
unsigned long len;
char *fn_name;
asection *fn_text;
len = strlen (o->name + 18) + 1;
fn_name = bfd_malloc (len + 6);
if (fn_name == NULL)
return FALSE;
memcpy (fn_name, ".text.", 6);
memcpy (fn_name + 6, o->name + 18, len);
fn_text = bfd_get_section_by_name (sub, fn_name);
free (fn_name);
if (fn_text == NULL || !fn_text->gc_mark)
continue;
}
/* If not using specially named exception table section,
then keep whatever we are using. */
if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
return FALSE;
}
}
/* ... and mark SEC_EXCLUDE for those that go. */
if (!elf_gc_sweep (info, get_elf_backend_data (abfd)->gc_sweep_hook))
return FALSE;