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2012-03-21 Cary Coutant <ccoutant@google.com>
[binutils-gdb.git] / gold / powerpc.cc
diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index 661477a899855acf858fbe608cc74aa225859ca4..372443ffa6c2d58a0e4f181eacf3ab00edde135f 100644 (file)
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -1,6 +1,6 @@
 // powerpc.cc -- powerpc target support for gold.
 
-// Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
+// Copyright 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
 // Written by David S. Miller <davem@davemloft.net>
 //        and David Edelsohn <edelsohn@gnu.org>
 
@@ -67,7 +67,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
   void
   gc_process_relocs(Symbol_table* symtab,
                    Layout* layout,
-                   Sized_relobj<size, big_endian>* object,
+                   Sized_relobj_file<size, big_endian>* object,
                    unsigned int data_shndx,
                    unsigned int sh_type,
                    const unsigned char* prelocs,
@@ -81,7 +81,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
   void
   scan_relocs(Symbol_table* symtab,
              Layout* layout,
-             Sized_relobj<size, big_endian>* object,
+             Sized_relobj_file<size, big_endian>* object,
              unsigned int data_shndx,
              unsigned int sh_type,
              const unsigned char* prelocs,
@@ -116,7 +116,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
   void
   scan_relocatable_relocs(Symbol_table* symtab,
                          Layout* layout,
-                         Sized_relobj<size, big_endian>* object,
+                         Sized_relobj_file<size, big_endian>* object,
                          unsigned int data_shndx,
                          unsigned int sh_type,
                          const unsigned char* prelocs,
@@ -193,7 +193,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
 
     inline void
     local(Symbol_table* symtab, Layout* layout, Target_powerpc* target,
-         Sized_relobj<size, big_endian>* object,
+         Sized_relobj_file<size, big_endian>* object,
          unsigned int data_shndx,
          Output_section* output_section,
          const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
@@ -201,7 +201,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
 
     inline void
     global(Symbol_table* symtab, Layout* layout, Target_powerpc* target,
-          Sized_relobj<size, big_endian>* object,
+          Sized_relobj_file<size, big_endian>* object,
           unsigned int data_shndx,
           Output_section* output_section,
           const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
@@ -210,7 +210,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
     inline bool
     local_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
                                        Target_powerpc* ,
-                                       Sized_relobj<size, big_endian>* ,
+                                       Sized_relobj_file<size, big_endian>* ,
                                        unsigned int ,
                                        Output_section* ,
                                        const elfcpp::Rela<size, big_endian>& ,
@@ -221,7 +221,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
     inline bool
     global_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
                                         Target_powerpc* ,
-                                        Sized_relobj<size, big_endian>* ,
+                                        Sized_relobj_file<size, big_endian>* ,
                                         unsigned int ,
                                         Output_section* ,
                                         const elfcpp::Rela<size,
@@ -231,11 +231,11 @@ class Target_powerpc : public Sized_target<size, big_endian>
 
   private:
     static void
-    unsupported_reloc_local(Sized_relobj<size, big_endian>*,
+    unsupported_reloc_local(Sized_relobj_file<size, big_endian>*,
                            unsigned int r_type);
 
     static void
-    unsupported_reloc_global(Sized_relobj<size, big_endian>*,
+    unsupported_reloc_global(Sized_relobj_file<size, big_endian>*,
                             unsigned int r_type, Symbol*);
 
     static void
@@ -313,7 +313,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
   // Create a GOT entry for the TLS module index.
   unsigned int
   got_mod_index_entry(Symbol_table* symtab, Layout* layout,
-                     Sized_relobj<size, big_endian>* object);
+                     Sized_relobj_file<size, big_endian>* object);
 
   // Get the PLT section.
   const Output_data_plt_powerpc<size, big_endian>*
@@ -330,7 +330,7 @@ class Target_powerpc : public Sized_target<size, big_endian>
   // Copy a relocation against a global symbol.
   void
   copy_reloc(Symbol_table* symtab, Layout* layout,
-             Sized_relobj<size, big_endian>* object,
+             Sized_relobj_file<size, big_endian>* object,
             unsigned int shndx, Output_section* output_section,
             Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc)
   {
@@ -383,6 +383,7 @@ Target::Target_info Target_powerpc<32, true>::powerpc_info =
   false,               // has_resolve
   false,               // has_code_fill
   true,                        // is_default_stack_executable
+  false,               // can_icf_inline_merge_sections
   '\0',                        // wrap_char
   "/usr/lib/ld.so.1",  // dynamic_linker
   0x10000000,          // default_text_segment_address
@@ -406,6 +407,7 @@ Target::Target_info Target_powerpc<32, false>::powerpc_info =
   false,               // has_resolve
   false,               // has_code_fill
   true,                        // is_default_stack_executable
+  false,               // can_icf_inline_merge_sections
   '\0',                        // wrap_char
   "/usr/lib/ld.so.1",  // dynamic_linker
   0x10000000,          // default_text_segment_address
@@ -429,6 +431,7 @@ Target::Target_info Target_powerpc<64, true>::powerpc_info =
   false,               // has_resolve
   false,               // has_code_fill
   true,                        // is_default_stack_executable
+  false,               // can_icf_inline_merge_sections
   '\0',                        // wrap_char
   "/usr/lib/ld.so.1",  // dynamic_linker
   0x10000000,          // default_text_segment_address
@@ -452,6 +455,7 @@ Target::Target_info Target_powerpc<64, false>::powerpc_info =
   false,               // has_resolve
   false,               // has_code_fill
   true,                        // is_default_stack_executable
+  false,               // can_icf_inline_merge_sections
   '\0',                        // wrap_char
   "/usr/lib/ld.so.1",  // dynamic_linker
   0x10000000,          // default_text_segment_address
@@ -496,7 +500,7 @@ private:
   rela(unsigned char* view,
        unsigned int right_shift,
        elfcpp::Elf_Xword dst_mask,
-       const Sized_relobj<size, big_endian>* object,
+       const Sized_relobj_file<size, big_endian>* object,
        const Symbol_value<size>* psymval,
        typename elfcpp::Swap<valsize, big_endian>::Valtype addend)
   {
@@ -517,7 +521,7 @@ private:
   static inline void
   rela_ua(unsigned char* view, unsigned int right_shift,
          elfcpp::Elf_Xword dst_mask,
-         const Sized_relobj<size, big_endian>* object,
+         const Sized_relobj_file<size, big_endian>* object,
          const Symbol_value<size>* psymval,
          typename elfcpp::Swap<size, big_endian>::Valtype addend)
   {
@@ -539,7 +543,7 @@ private:
   static inline void
   pcrela(unsigned char* view, unsigned int right_shift,
         elfcpp::Elf_Xword dst_mask,
-        const Sized_relobj<size, big_endian>* object,
+        const Sized_relobj_file<size, big_endian>* object,
         const Symbol_value<size>* psymval,
         typename elfcpp::Swap<size, big_endian>::Valtype addend,
         typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -559,7 +563,7 @@ private:
   template<int valsize>
   static inline void
   pcrela_unaligned(unsigned char* view,
-                  const Sized_relobj<size, big_endian>* object,
+                  const Sized_relobj_file<size, big_endian>* object,
                   const Symbol_value<size>* psymval,
                   typename elfcpp::Swap<size, big_endian>::Valtype addend,
                   typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -578,7 +582,7 @@ public:
   // R_POWERPC_REL32: (Symbol + Addend - Address)
   static inline void
   rel32(unsigned char* view,
-       const Sized_relobj<size, big_endian>* object,
+       const Sized_relobj_file<size, big_endian>* object,
        const Symbol_value<size>* psymval,
        typename elfcpp::Elf_types<size>::Elf_Addr addend,
        typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -587,7 +591,7 @@ public:
   // R_POWERPC_REL24: (Symbol + Addend - Address) & 0x3fffffc
   static inline void
   rel24(unsigned char* view,
-       const Sized_relobj<size, big_endian>* object,
+       const Sized_relobj_file<size, big_endian>* object,
        const Symbol_value<size>* psymval,
        typename elfcpp::Elf_types<size>::Elf_Addr addend,
        typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -599,7 +603,7 @@ public:
   // R_POWERPC_REL14: (Symbol + Addend - Address) & 0xfffc
   static inline void
   rel14(unsigned char* view,
-       const Sized_relobj<size, big_endian>* object,
+       const Sized_relobj_file<size, big_endian>* object,
        const Symbol_value<size>* psymval,
        typename elfcpp::Elf_types<size>::Elf_Addr addend,
        typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -617,7 +621,7 @@ public:
 
   static inline void
   addr16(unsigned char* view,
-        const Sized_relobj<size, big_endian>* object,
+        const Sized_relobj_file<size, big_endian>* object,
         const Symbol_value<size>* psymval,
         typename elfcpp::Elf_types<size>::Elf_Addr addend)
   { This_reloc::rela16(view, object, psymval, addend); }
@@ -640,7 +644,7 @@ public:
 
   static inline void
   addr16_lo(unsigned char* view,
-           const Sized_relobj<size, big_endian>* object,
+           const Sized_relobj_file<size, big_endian>* object,
            const Symbol_value<size>* psymval,
            typename elfcpp::Elf_types<size>::Elf_Addr addend)
   { This_reloc::rela16(view, object, psymval, addend); }
@@ -656,7 +660,7 @@ public:
 
   static inline void
   addr16_hi(unsigned char* view,
-           const Sized_relobj<size, big_endian>* object,
+           const Sized_relobj_file<size, big_endian>* object,
            const Symbol_value<size>* psymval,
            typename elfcpp::Elf_types<size>::Elf_Addr addend)
   {
@@ -684,7 +688,7 @@ public:
 
   static inline void
   addr16_ha(unsigned char* view,
-           const Sized_relobj<size, big_endian>* object,
+           const Sized_relobj_file<size, big_endian>* object,
            const Symbol_value<size>* psymval,
            typename elfcpp::Elf_types<size>::Elf_Addr addend)
   {
@@ -702,7 +706,7 @@ public:
   // R_PPC_REL16: (Symbol + Addend - Address) & 0xffff
   static inline void
   rel16(unsigned char* view,
-       const Sized_relobj<size, big_endian>* object,
+       const Sized_relobj_file<size, big_endian>* object,
        const Symbol_value<size>* psymval,
        typename elfcpp::Elf_types<size>::Elf_Addr addend,
        typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -711,7 +715,7 @@ public:
   // R_PPC_REL16_LO: (Symbol + Addend - Address) & 0xffff
   static inline void
   rel16_lo(unsigned char* view,
-          const Sized_relobj<size, big_endian>* object,
+          const Sized_relobj_file<size, big_endian>* object,
           const Symbol_value<size>* psymval,
           typename elfcpp::Elf_types<size>::Elf_Addr addend,
           typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -720,7 +724,7 @@ public:
   // R_PPC_REL16_HI: ((Symbol + Addend - Address) >> 16) & 0xffff
   static inline void
   rel16_hi(unsigned char* view,
-          const Sized_relobj<size, big_endian>* object,
+          const Sized_relobj_file<size, big_endian>* object,
           const Symbol_value<size>* psymval,
           typename elfcpp::Elf_types<size>::Elf_Addr addend,
           typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -734,7 +738,7 @@ public:
   //                 relocation is negative, add one.
   static inline void
   rel16_ha(unsigned char* view,
-          const Sized_relobj<size, big_endian>* object,
+          const Sized_relobj_file<size, big_endian>* object,
           const Symbol_value<size>* psymval,
           typename elfcpp::Elf_types<size>::Elf_Addr addend,
           typename elfcpp::Elf_types<size>::Elf_Addr address)
@@ -1068,9 +1072,10 @@ Target_powerpc<size, big_endian>::plt_entry_size() const
 
 template<int size, bool big_endian>
 unsigned int
-Target_powerpc<size, big_endian>::got_mod_index_entry(Symbol_table* symtab,
-                                                     Layout* layout,
-                                                     Sized_relobj<size, big_endian>* object)
+Target_powerpc<size, big_endian>::got_mod_index_entry(
+    Symbol_table* symtab,
+    Layout* layout,
+    Sized_relobj_file<size, big_endian>* object)
 {
   if (this->got_mod_index_offset_ == -1U)
     {
@@ -1176,7 +1181,7 @@ Target_powerpc<size, big_endian>::Scan::get_reference_flags(
 template<int size, bool big_endian>
 void
 Target_powerpc<size, big_endian>::Scan::unsupported_reloc_local(
-                       Sized_relobj<size, big_endian>* object,
+                       Sized_relobj_file<size, big_endian>* object,
                        unsigned int r_type)
 {
   gold_error(_("%s: unsupported reloc %u against local symbol"),
@@ -1284,7 +1289,7 @@ Target_powerpc<size, big_endian>::Scan::local(
                        Symbol_table* symtab,
                        Layout* layout,
                        Target_powerpc<size, big_endian>* target,
-                       Sized_relobj<size, big_endian>* object,
+                       Sized_relobj_file<size, big_endian>* object,
                        unsigned int data_shndx,
                        Output_section* output_section,
                        const elfcpp::Rela<size, big_endian>& reloc,
@@ -1324,7 +1329,7 @@ Target_powerpc<size, big_endian>::Scan::local(
               rela_dyn->add_local_relative(object, r_sym, r_type,
                                           output_section, data_shndx,
                                           reloc.get_r_offset(),
-                                          reloc.get_r_addend());
+                                          reloc.get_r_addend(), false);
             }
         }
       break;
@@ -1367,7 +1372,7 @@ Target_powerpc<size, big_endian>::Scan::local(
                object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off);
                rela_dyn->add_local_relative(object, r_sym,
                                             elfcpp::R_POWERPC_RELATIVE,
-                                            got, off, 0);
+                                            got, off, 0, false);
              }
           }
        else
@@ -1402,7 +1407,7 @@ Target_powerpc<size, big_endian>::Scan::local(
 template<int size, bool big_endian>
 void
 Target_powerpc<size, big_endian>::Scan::unsupported_reloc_global(
-                       Sized_relobj<size, big_endian>* object,
+                       Sized_relobj_file<size, big_endian>* object,
                        unsigned int r_type,
                        Symbol* gsym)
 {
@@ -1418,7 +1423,7 @@ Target_powerpc<size, big_endian>::Scan::global(
                                Symbol_table* symtab,
                                Layout* layout,
                                Target_powerpc<size, big_endian>* target,
-                               Sized_relobj<size, big_endian>* object,
+                               Sized_relobj_file<size, big_endian>* object,
                                unsigned int data_shndx,
                                Output_section* output_section,
                                const elfcpp::Rela<size, big_endian>& reloc,
@@ -1561,8 +1566,8 @@ Target_powerpc<size, big_endian>::Scan::global(
             if (gsym->is_from_dynobj()
                 || gsym->is_undefined()
                 || gsym->is_preemptible())
-              got->add_global_with_rela(gsym, GOT_TYPE_STANDARD, rela_dyn,
-                                        elfcpp::R_POWERPC_GLOB_DAT);
+              got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn,
+                                      elfcpp::R_POWERPC_GLOB_DAT);
             else if (!gsym->has_got_offset(GOT_TYPE_STANDARD))
               {
                unsigned int off = got->add_constant(0);
@@ -1609,7 +1614,7 @@ void
 Target_powerpc<size, big_endian>::gc_process_relocs(
                        Symbol_table* symtab,
                        Layout* layout,
-                       Sized_relobj<size, big_endian>* object,
+                       Sized_relobj_file<size, big_endian>* object,
                        unsigned int data_shndx,
                        unsigned int,
                        const unsigned char* prelocs,
@@ -1644,7 +1649,7 @@ void
 Target_powerpc<size, big_endian>::scan_relocs(
                        Symbol_table* symtab,
                        Layout* layout,
-                       Sized_relobj<size, big_endian>* object,
+                       Sized_relobj_file<size, big_endian>* object,
                        unsigned int data_shndx,
                        unsigned int sh_type,
                        const unsigned char* prelocs,
@@ -1756,7 +1761,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
       psymval = &symval;
     }
 
-  const Sized_relobj<size, big_endian>* object = relinfo->object;
+  const Sized_relobj_file<size, big_endian>* object = relinfo->object;
   elfcpp::Elf_Xword addend = rela.get_r_addend();
 
   // Get the GOT offset if needed.  Unlike i386 and x86_64, our GOT
@@ -1959,7 +1964,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate_tls(
 {
   Output_segment* tls_segment = relinfo->layout->tls_segment();
   typedef Powerpc_relocate_functions<size, big_endian> Reloc;
-  const Sized_relobj<size, big_endian>* object = relinfo->object;
+  const Sized_relobj_file<size, big_endian>* object = relinfo->object;
 
   const elfcpp::Elf_Xword addend = rela.get_r_addend();
   typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0);
@@ -2033,7 +2038,7 @@ void
 Target_powerpc<size, big_endian>::scan_relocatable_relocs(
                        Symbol_table* symtab,
                        Layout* layout,
-                       Sized_relobj<size, big_endian>* object,
+                       Sized_relobj_file<size, big_endian>* object,
                        unsigned int data_shndx,
                        unsigned int sh_type,
                        const unsigned char* prelocs,
@@ -2119,9 +2124,12 @@ class Target_selector_powerpc : public Target_selector
 public:
   Target_selector_powerpc()
     : Target_selector(elfcpp::EM_NONE, size, big_endian,
-                     (size == 64 ?
-                      (big_endian ? "elf64-powerpc" : "elf64-powerpcle") :
-                      (big_endian ? "elf32-powerpc" : "elf32-powerpcle")))
+                     (size == 64
+                      ? (big_endian ? "elf64-powerpc" : "elf64-powerpcle")
+                      : (big_endian ? "elf32-powerpc" : "elf32-powerpcle")),
+                     (size == 64
+                      ? (big_endian ? "elf64ppc" : "elf64lppc")
+                      : (big_endian ? "elf32ppc" : "elf32lppc")))
   { }
 
   Target* do_recognize(int machine, int, int)