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Mark _init and _fini for --gc-sections
- From: Alan Modra <amodra at gmail dot com>
- To: binutils at sourceware dot org
- Date: Fri, 10 Apr 2015 10:55:06 +0930
- Subject: Mark _init and _fini for --gc-sections
- Authentication-results: sourceware.org; auth=none
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.
diff --git a/ld/ldlang.c b/ld/ldlang.c
index cbd5bc3..b074169 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -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)
--
Alan Modra
Australia Development Lab, IBM