From: Cary Coutant <ccoutant@google.com>
Date: Mon, 31 Oct 2011 22:43:49 +0000 (+0000)
Subject: 	* options.h (class General_options): Add --[no-]gnu-unique options.
X-Git-Tag: sid-snapshot-20111101~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9634ed06a66c3693045bb8b3bf86b43942239dd8;p=external%2Fbinutils.git

	* options.h (class General_options): Add --[no-]gnu-unique options.
	* symtab.cc (Symbol_table::sized_write_globals): Convert
	STB_GNU_UNIQUE to STB_GLOBAL if --no-gnu-unique.
---

diff --git a/gold/ChangeLog b/gold/ChangeLog
index fddf7d0..cc8aae0 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,5 +1,11 @@
 2011-10-31  Cary Coutant  <ccoutant@google.com>
 
+	* options.h (class General_options): Add --[no-]gnu-unique options.
+	* symtab.cc (Symbol_table::sized_write_globals): Convert
+	STB_GNU_UNIQUE to STB_GLOBAL if --no-gnu-unique.
+
+2011-10-31  Cary Coutant  <ccoutant@google.com>
+
 	PR gold/13359
 	* i386.cc (Target_i386::Relocate::relocate_tls): Remove
 	unnecessary assertion.
diff --git a/gold/options.h b/gold/options.h
index 2837790..9909483 100644
--- a/gold/options.h
+++ b/gold/options.h
@@ -787,6 +787,10 @@ class General_options
   DEFINE_bool(g, options::EXACTLY_ONE_DASH, '\0', false,
 	      N_("Ignored"), NULL);
 
+  DEFINE_bool(gnu_unique, options::TWO_DASHES, '\0', true,
+	      N_("Enable STB_GNU_UNIQUE symbol binding (default)"),
+	      N_("Disable STB_GNU_UNIQUE symbol binding"));
+
   DEFINE_string(soname, options::ONE_DASH, 'h', NULL,
                 N_("Set shared library name"), N_("FILENAME"));
 
diff --git a/gold/symtab.cc b/gold/symtab.cc
index 3b76adb..f0ba1d5 100644
--- a/gold/symtab.cc
+++ b/gold/symtab.cc
@@ -2814,6 +2814,12 @@ Symbol_table::sized_write_globals(const Stringpool* sympool,
       typename elfcpp::Elf_types<size>::Elf_Addr sym_value = sym->value();
       typename elfcpp::Elf_types<size>::Elf_Addr dynsym_value = sym_value;
       elfcpp::STB binding = sym->binding();
+
+      // If --no-gnu-unique is set, change STB_GNU_UNIQUE to STB_GLOBAL.
+      if (binding == elfcpp::STB_GNU_UNIQUE
+	  && !parameters->options().gnu_unique())
+	binding = elfcpp::STB_GLOBAL;
+
       switch (sym->source())
 	{
 	case Symbol::FROM_OBJECT: