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Optimize _bfd_elf_allocate_ifunc_dyn_relocs.

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2011-01-06  H.J. Lu  <hongjiu.lu@intel.com>

	* elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Optimized.
This commit is contained in:
H.J. Lu 2011-01-07 03:34:23 +00:00
parent fb03cb59c1
commit 7be867377d
2 changed files with 28 additions and 18 deletions
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4
bfd/ChangeLog
View File

@ -1,3 +1,7 @@
2011-01-06 H.J. Lu <hongjiu.lu@intel.com>
* elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Optimized.
2011-01-06 H.J. Lu <hongjiu.lu@intel.com>
PR ld/12366

42
bfd/elf-ifunc.c
View File

@ -194,25 +194,20 @@ _bfd_elf_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
where it is marked with regular reference, but not non-GOT
reference. It may happen if we didn't see STT_GNU_IFUNC
symbol at the time when checking relocations. */
bfd_size_type count = 0;
if (info->shared
&& !h->non_got_ref
&& h->ref_regular)
{
for (p = *head; p != NULL; p = p->next)
count += p->count;
if (count != 0)
h->non_got_ref = 1;
}
for (p = *head; p != NULL; p = p->next)
if (p->count)
{
h->non_got_ref = 1;
goto keep;
}
if (count == 0)
{
h->got = htab->init_got_offset;
h->plt = htab->init_plt_offset;
*head = NULL;
return TRUE;
}
h->got = htab->init_got_offset;
h->plt = htab->init_plt_offset;
*head = NULL;
return TRUE;
}
/* Return and discard space for dynamic relocations against it if
@ -228,6 +223,7 @@ _bfd_elf_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
return TRUE;
}
keep:
bed = get_elf_backend_data (info->output_bfd);
if (bed->rela_plts_and_copies_p)
sizeof_reloc = bed->s->sizeof_rela;
@ -277,10 +273,20 @@ _bfd_elf_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
*head = NULL;
/* Finally, allocate space. */
for (p = *head; p != NULL; p = p->next)
htab->irelifunc->size += p->count * sizeof_reloc;
p = *head;
if (p != NULL)
{
bfd_size_type count = 0;
do
{
count += p->count;
p = p->next;
}
while (p != NULL);
htab->irelifunc->size += count * sizeof_reloc;
}
/* For STT_GNU_IFUNC symbol, .got.plt has the real function addres
/* For STT_GNU_IFUNC symbol, .got.plt has the real function address
and .got has the PLT entry adddress. We will load the GOT entry
with the PLT entry in finish_dynamic_symbol if it is used. For
branch, it uses .got.plt. For symbol value,