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Mark _init and _fini for --gc-sections

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gold marks _init and _fini via symbol, ld marks them via section
(default scripts set .init and .fini section KEEP).  This makes it
possible for people to write their own _init and not bother to put the
function into the right section.

	PR ld/18223
	* ldlang.c (lang_process): Add _init and _fini to gc_sym_list.
This commit is contained in:
Alan Modra 2015-04-09 18:38:03 +09:30
parent 4f0d8f2d9f
commit 6166ed9330
2 changed files with 21 additions and 0 deletions
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5
ld/ChangeLog
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@ -1,3 +1,8 @@
2015-04-10 Alan Modra <amodra@gmail.com>
PR ld/18223
* ldlang.c (lang_process): Add _init and _fini to gc_sym_list.
2015-04-09 H.J. Lu <hongjiu.lu@intel.com>
* emulparams/elf_x86_64.sh (BNDPLT): Removed.

16
ld/ldlang.c
View File

@ -6692,6 +6692,22 @@ lang_process (void)
link_info.gc_sym_list = &entry_symbol;
if (entry_symbol.name == NULL)
link_info.gc_sym_list = ldlang_undef_chain_list_head;
if (link_info.init_function != NULL)
{
struct bfd_sym_chain *sym
= (struct bfd_sym_chain *) stat_alloc (sizeof (*sym));
sym->next = link_info.gc_sym_list;
sym->name = link_info.init_function;
link_info.gc_sym_list = sym;
}
if (link_info.fini_function != NULL)
{
struct bfd_sym_chain *sym
= (struct bfd_sym_chain *) stat_alloc (sizeof (*sym));
sym->next = link_info.gc_sym_list;
sym->name = link_info.fini_function;
link_info.gc_sym_list = sym;
}
ldemul_after_open ();
if (config.map_file != NULL)