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binutils/

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* NEWS: Mention --as-needed change.
ld/
	* ld.texinfo (--as-needed): Update.
bfd/
	* elflink.c (on_needed_list): New function.
	(elf_link_add_object_symbols): Link in --as-needed libs if they
	satisfy undefined symbols in other libs.
This commit is contained in:
Alan Modra
2009-01-31 11:44:38 +00:00
parent 5d27446dac
commit 010e5ae26e
6 changed files with 39 additions and 5 deletions
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17
bfd/elflink.c
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@@ -3199,6 +3199,16 @@ elf_add_dt_needed_tag (bfd *abfd,
return 0;
}
static bfd_boolean
on_needed_list (const char *soname, struct bfd_link_needed_list *needed)
{
for (; needed != NULL; needed = needed->next)
if (strcmp (soname, needed->name) == 0)
return TRUE;
return FALSE;
}
/* Sort symbol by value and section. */
static int
elf_sort_symbol (const void *arg1, const void *arg2)
@@ -4434,8 +4444,11 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
if (!add_needed
&& definition
&& dynsym
&& h->ref_regular)
&& ((dynsym
&& h->ref_regular)
|| (h->ref_dynamic
&& (elf_dyn_lib_class (abfd) & DYN_AS_NEEDED) != 0
&& !on_needed_list (elf_dt_name (abfd), htab->needed))))
{
int ret;
const char *soname = elf_dt_name (abfd);