From 21bb3914d64c5fb946423572fe895d2a08531030 Mon Sep 17 00:00:00 2001
From: Sriraman Tallam <tmsriram@google.com>
Date: Sat, 13 Feb 2010 02:04:21 +0000
Subject: 2010-02-12  Sriraman Tallam  <tmsriram@google.com>

	* arm.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* sparc.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* powerpc.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* i386.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* x86_64.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	(Scan::possible_function_pointer_reloc): New function.
	(Target_x86_64::can_check_for_function_pointers): New function.
	* gc.h (gc_process_relocs): Scan relocation types to determine if
	function pointers were taken for targets that support it.
	* icf.cc (Icf::find_identical_sections): Include functions for
	folding in safe ICF whose pointer is not taken.
	* icf.h (Secn_fptr_taken_set): New typedef.
	(fptr_section_id_): New member.
	(section_has_function_pointers): New function.
	(set_section_has_function_pointers): New function.
	(check_section_for_function_pointers): New function.
	* options.h: Fix comment for safe ICF option.
	* target.h (can_check_for_function_pointers): New function.
	* testsuite/Makefile.am: Add icf_safe_so_test test case.
	Modify icf_safe_test for X86-64.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_safe_so_test.cc: New file.
	* testsuite/icf_safe_so_test.sh: New file.
	* testsuite/icf_safe_test.cc (kept_func_3): New function.
	(main): Change to take pointer to function kept_func_3.
	* testsuite/icf_safe_test.sh (arch_specific_safe_fold): Check if safe
	folding is done correctly for X86-64.
---
 gold/sparc.cc | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'gold/sparc.cc')

diff --git a/gold/sparc.cc b/gold/sparc.cc
index ab25203..5355c7b 100644
--- a/gold/sparc.cc
+++ b/gold/sparc.cc
@@ -193,6 +193,29 @@ class Target_sparc : public Sized_target<size, big_endian>
 	   const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
 	   Symbol* gsym);
 
+    inline bool
+    local_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
+ 					Target_sparc* ,
+	          			Sized_relobj<size, big_endian>* ,
+       	          			unsigned int ,
+	          			Output_section* ,
+	          			const elfcpp::Rela<size, big_endian>& ,
+					unsigned int ,
+			          	const elfcpp::Sym<size, big_endian>&)
+    { return false; }
+
+    inline bool
+    global_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
+			 		 Target_sparc* ,
+		   			 Sized_relobj<size, big_endian>* ,
+		   			 unsigned int ,
+		   			 Output_section* ,
+		   			 const elfcpp::Rela<size,
+	 						    big_endian>& ,
+ 					 unsigned int , Symbol*)
+    { return false; }
+
+
   private:
     static void
     unsupported_reloc_local(Sized_relobj<size, big_endian>*,
-- 
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