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[binutils-gdb] Mark _init and _fini for --gc-sections
- From: Alan Modra <amodra at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 10 Apr 2015 01:03:11 -0000
- Subject: [binutils-gdb] Mark _init and _fini for --gc-sections
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6166ed9330a9afd41859d5a716cb9019c338a8ca
commit 6166ed9330a9afd41859d5a716cb9019c338a8ca
Author: Alan Modra <amodra@gmail.com>
Date: Thu Apr 9 18:38:03 2015 +0930
Mark _init and _fini for --gc-sections
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:
---
ld/ChangeLog | 5 +++++
ld/ldlang.c | 16 ++++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 9e79980..b4d3ceb 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -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.
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)