* Makefile.am (spu_ovl.o_c): Add missing line continuations.
[binutils-gdb.git] / gold / i386.cc
index 1d04f4f9c39787ac5928b6bfe68b54bad4ffba06..8a5558ebf37e6961b2e55abee259c708b9d3a452 100644 (file)
@@ -135,7 +135,7 @@ class Target_i386 : public Sized_target<32, false>
 
   // Return whether SYM is defined by the ABI.
   bool
-  do_is_defined_by_abi(Symbol* sym) const
+  do_is_defined_by_abi(const Symbol* sym) const
   { return strcmp(sym->name(), "___tls_get_addr") == 0; }
 
   // Return the size of the GOT section.
@@ -323,7 +323,7 @@ class Target_i386 : public Sized_target<32, false>
   void
   make_plt_entry(Symbol_table*, Layout*, Symbol*);
 
-  // Define the _TLS_MODULE_BASE_ symbol at the end of the TLS segment.
+  // Define the _TLS_MODULE_BASE_ symbol in the TLS segment.
   void
   define_tls_base_symbol(Symbol_table*, Layout*);
 
@@ -357,7 +357,8 @@ class Target_i386 : public Sized_target<32, false>
 
   // Add a potential copy relocation.
   void
-  copy_reloc(Symbol_table* symtab, Layout* layout, Relobj* object,
+  copy_reloc(Symbol_table* symtab, Layout* layout,
+             Sized_relobj<32, false>* object,
             unsigned int shndx, Output_section* output_section,
             Symbol* sym, const elfcpp::Rel<32, false>& reloc)
   {
@@ -426,18 +427,23 @@ Target_i386::got_section(Symbol_table* symtab, Layout* layout)
 
       this->got_ = new Output_data_got<32, false>();
 
-      layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
-                                     elfcpp::SHF_ALLOC | elfcpp::SHF_WRITE,
-                                     this->got_);
+      Output_section* os;
+      os = layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
+                                          (elfcpp::SHF_ALLOC
+                                           | elfcpp::SHF_WRITE),
+                                          this->got_);
+      os->set_is_relro();
 
       // The old GNU linker creates a .got.plt section.  We just
       // create another set of data in the .got section.  Note that we
       // always create a PLT if we create a GOT, although the PLT
       // might be empty.
-      this->got_plt_ = new Output_data_space(4);
-      layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
-                                     elfcpp::SHF_ALLOC | elfcpp::SHF_WRITE,
-                                     this->got_plt_);
+      this->got_plt_ = new Output_data_space(4, "** GOT PLT");
+      os = layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
+                                          (elfcpp::SHF_ALLOC
+                                           | elfcpp::SHF_WRITE),
+                                          this->got_plt_);
+      os->set_is_relro();
 
       // The first three entries are reserved.
       this->got_plt_->set_current_data_size(3 * 4);
@@ -491,6 +497,11 @@ class Output_data_plt_i386 : public Output_section_data
   void
   do_adjust_output_section(Output_section* os);
 
+  // Write to a map file.
+  void
+  do_print_to_mapfile(Mapfile* mapfile) const
+  { mapfile->print_output_data(this, _("** PLT")); }
+
  private:
   // The size of an entry in the PLT.
   static const int plt_entry_size = 16;
@@ -725,7 +736,7 @@ Target_i386::make_plt_entry(Symbol_table* symtab, Layout* layout, Symbol* gsym)
   this->plt_->add_entry(gsym);
 }
 
-// Define the _TLS_MODULE_BASE_ symbol at the end of the TLS segment.
+// Define the _TLS_MODULE_BASE_ symbol in the TLS segment.
 
 void
 Target_i386::define_tls_base_symbol(Symbol_table* symtab, Layout* layout)
@@ -736,12 +747,16 @@ Target_i386::define_tls_base_symbol(Symbol_table* symtab, Layout* layout)
   Output_segment* tls_segment = layout->tls_segment();
   if (tls_segment != NULL)
     {
+      bool is_exec = parameters->options().output_is_executable();
       symtab->define_in_output_segment("_TLS_MODULE_BASE_", NULL,
                                       tls_segment, 0, 0,
                                       elfcpp::STT_TLS,
                                       elfcpp::STB_LOCAL,
                                       elfcpp::STV_HIDDEN, 0,
-                                      Symbol::SEGMENT_END, true);
+                                      (is_exec
+                                       ? Symbol::SEGMENT_END
+                                       : Symbol::SEGMENT_START),
+                                      true);
     }
   this->tls_base_symbol_defined_ = true;
 }
@@ -1584,15 +1599,10 @@ Target_i386::Relocate::relocate(const Relocate_info<32, false>* relinfo,
 
   // Pick the value to use for symbols defined in shared objects.
   Symbol_value<32> symval;
-  bool is_nonpic = (r_type == elfcpp::R_386_PC8
-                    || r_type == elfcpp::R_386_PC16
-                    || r_type == elfcpp::R_386_PC32);
   if (gsym != NULL
-      && (gsym->is_from_dynobj()
-          || (parameters->options().shared()
-              && (gsym->is_undefined() || gsym->is_preemptible())))
-      && gsym->has_plt_offset()
-      && (!is_nonpic || !parameters->options().shared()))
+      && gsym->use_plt_offset(r_type == elfcpp::R_386_PC8
+                             || r_type == elfcpp::R_386_PC16
+                             || r_type == elfcpp::R_386_PC32))
     {
       symval.set_output_value(target->plt_section()->address()
                              + gsym->plt_offset());