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* elflink.c (elf_gc_mark_dynamic_ref_symbol): Handle -shared. 

(bfd_elf_gc_sections): Allow -gc-sections when -shared.
	* elf32-ppc.c (ppc_elf_gc_sweep_hook): Correct for -shared.
This commit is contained in:
Alan Modra 2005-07-26 12:06:38 +00:00
parent 9e8cc8b4bf
commit 87538722be
3 changed files with 22 additions and 9 deletions
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6
bfd/ChangeLog
View File

@ -1,3 +1,9 @@
2005-07-26 Alan Modra <amodra@bigpond.net.au>
* elflink.c (elf_gc_mark_dynamic_ref_symbol): Handle -shared.
(bfd_elf_gc_sections): Allow -gc-sections when -shared.
* elf32-ppc.c (ppc_elf_gc_sweep_hook): Correct for -shared.
2005-07-26 Alan Modra <amodra@bigpond.net.au>
* elflink.c (elf_gc_sweep): Move gcc_except_table code..

4
bfd/elf32-ppc.c
View File

@ -3728,8 +3728,12 @@ ppc_elf_gc_sweep_hook (bfd *abfd,
case R_PPC_ADDR14_BRNTAKEN:
case R_PPC_UADDR32:
case R_PPC_UADDR16:
if (info->shared)
break;
case R_PPC_PLT32:
case R_PPC_PLTREL24:
case R_PPC_PLTREL32:
case R_PPC_PLT16_LO:
case R_PPC_PLT16_HI:
case R_PPC_PLT16_HA:

21
bfd/elflink.c
View File

@ -9072,19 +9072,25 @@ elf_gc_smash_unused_vtentry_relocs (struct elf_link_hash_entry *h, void *okp)
return TRUE;
}
/* Mark sections containing dynamically referenced symbols. This is called
through elf_link_hash_traverse. */
/* Mark sections containing dynamically referenced symbols. When
building shared libraries, we must assume that any visible symbol is
referenced. */
static bfd_boolean
elf_gc_mark_dynamic_ref_symbol (struct elf_link_hash_entry *h,
void *okp ATTRIBUTE_UNUSED)
elf_gc_mark_dynamic_ref_symbol (struct elf_link_hash_entry *h, void *inf)
{
struct bfd_link_info *info = (struct bfd_link_info *) inf;
if (h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
if ((h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& h->ref_dynamic)
&& (h->ref_dynamic
|| (info->shared
&& h->def_regular
&& ELF_ST_VISIBILITY (h->other) != STV_INTERNAL
&& ELF_ST_VISIBILITY (h->other) != STV_HIDDEN)))
h->root.u.def.section->flags |= SEC_KEEP;
return TRUE;
@ -9104,7 +9110,6 @@ bfd_elf_gc_sections (bfd *abfd, struct bfd_link_info *info)
if (!get_elf_backend_data (abfd)->can_gc_sections
|| info->relocatable
|| info->emitrelocations
|| info->shared
|| !is_elf_hash_table (info->hash))
{
(*_bfd_error_handler)(_("Warning: gc-sections option ignored"));
@ -9129,9 +9134,7 @@ bfd_elf_gc_sections (bfd *abfd, struct bfd_link_info *info)
if (elf_hash_table (info)->dynamic_sections_created)
elf_link_hash_traverse (elf_hash_table (info),
elf_gc_mark_dynamic_ref_symbol,
&ok);
if (!ok)
return FALSE;
info);
/* Grovel through relocs to find out who stays ... */
gc_mark_hook = get_elf_backend_data (abfd)->gc_mark_hook;