gold: Add sparc IFUNC support to Gold.

[deliverable/binutils-gdb.git] / gold / icf.cc

diff --git a/gold/icf.cc b/gold/icf.cc
index 13e8374b504e9fdb9b01ab3e1a7c53f3ee4fdb2c..5935c5be2fe30fb41bfaa58c6857ea49e67312f6 100644 (file)
--- a/gold/icf.cc
+++ b/gold/icf.cc
@@ -1,6 +1,6 @@
 // icf.cc -- Identical Code Folding.
 //
-// Copyright 2009, 2010 Free Software Foundation, Inc.
+// Copyright 2009, 2010, 2011 Free Software Foundation, Inc.
 // Written by Sriraman Tallam <tmsriram@google.com>.
 
 // This file is part of gold.
@@ -373,7 +373,7 @@ get_section_contents(bool first_iteration,
               // This reloc points to a merge section.  Hash the
               // contents of this section.
               if ((secn_flags & elfcpp::SHF_MERGE) != 0
-                 && parameters->target().can_icf_inline_merge_sections ())
+                 && parameters->target().can_icf_inline_merge_sections())
                 {
                   uint64_t entsize =
                     (it_v->first)->section_entsize(it_v->second);
@@ -652,16 +652,17 @@ match_sections(unsigned int iteration_num,
 }
 
 // During safe icf (--icf=safe), only fold functions that are ctors or dtors.
-// This function returns true if the mangled function name is a ctor or a
-// dtor.
+// This function returns true if the section name is that of a ctor or a dtor.
 
 static bool
-is_function_ctor_or_dtor(const char* mangled_func_name)
+is_function_ctor_or_dtor(const std::string& section_name)
 {
-  if ((is_prefix_of("_ZN", mangled_func_name)
-       || is_prefix_of("_ZZ", mangled_func_name))
-      && (is_gnu_v3_mangled_ctor(mangled_func_name)
-          || is_gnu_v3_mangled_dtor(mangled_func_name)))
+  const char* mangled_func_name = strrchr(section_name.c_str(), '.');
+  gold_assert(mangled_func_name != NULL);
+  if ((is_prefix_of("._ZN", mangled_func_name)
+       || is_prefix_of("._ZZ", mangled_func_name))
+      && (is_gnu_v3_mangled_ctor(mangled_func_name + 1)
+          || is_gnu_v3_mangled_dtor(mangled_func_name + 1)))
     {
       return true;
     }
@@ -696,7 +697,7 @@ Icf::find_identical_sections(const Input_objects* input_objects,
 
       for (unsigned int i = 0;i < (*p)->shnum(); ++i)
         {
-         const char* section_name = (*p)->section_name(i).c_str();
+         const std::string section_name = (*p)->section_name(i);
           if (!is_section_foldable_candidate(section_name))
             continue;
           if (!(*p)->is_section_included(i))
@@ -704,13 +705,11 @@ Icf::find_identical_sections(const Input_objects* input_objects,
           if (parameters->options().gc_sections()
               && symtab->gc()->is_section_garbage(*p, i))
               continue;
-         const char* mangled_func_name = strrchr(section_name, '.');
-         gold_assert(mangled_func_name != NULL);
          // With --icf=safe, check if the mangled function name is a ctor
          // or a dtor.  The mangled function name can be obtained from the
          // section name by stripping the section prefix.
          if (parameters->options().icf_safe_folding()
-              && !is_function_ctor_or_dtor(mangled_func_name + 1)
+              && !is_function_ctor_or_dtor(section_name)
              && (!target.can_check_for_function_pointers()
                   || section_has_function_pointers(*p, i)))
             {