Index: i386.cc =================================================================== RCS file: /cvs/src/src/gold/i386.cc,v retrieving revision 1.140 diff -u -p -r1.140 i386.cc --- i386.cc 13 Jul 2011 22:47:07 -0000 1.140 +++ i386.cc 15 Jul 2011 15:16:43 -0000 @@ -166,6 +166,9 @@ class Output_data_plt_i386 : public Outp unsigned int got_offset; }; + // A pointer to the Layout class, so that we can find the .dynamic + // section when we write out the GOT PLT section. + Layout* layout_; // The reloc section. Reloc_section* rel_; // The TLS_DESC relocations, if necessary. These must follow the @@ -822,9 +825,9 @@ Target_i386::rel_irelative_section(Layou Output_data_plt_i386::Output_data_plt_i386(Layout* layout, Output_data_space* got_plt, Output_data_space* got_irelative) - : Output_section_data(16), tls_desc_rel_(NULL), irelative_rel_(NULL), - got_plt_(got_plt), got_irelative_(got_irelative), count_(0), - irelative_count_(0), global_ifuncs_(), local_ifuncs_() + : Output_section_data(16), layout_(layout), tls_desc_rel_(NULL), + irelative_rel_(NULL), got_plt_(got_plt), got_irelative_(got_irelative), + count_(0), irelative_count_(0), global_ifuncs_(), local_ifuncs_() { this->rel_ = new Reloc_section(false); layout->add_output_section_data(".rel.plt", elfcpp::SHT_REL, @@ -1138,8 +1141,16 @@ Output_data_plt_i386::do_write(Output_fi unsigned char* got_pov = got_view; - memset(got_pov, 0, 12); - got_pov += 12; + // The first entry in the GOT is the address of the .dynamic section + // aka the PT_DYNAMIC segment. The next two entries are reserved. + // We saved space for them when we created the section in + // Target_i386::got_section. + Output_section* dynamic = this->layout_->dynamic_section(); + uint32_t dynamic_addr = dynamic == NULL ? 0 : dynamic->address(); + elfcpp::Swap<32, false>::writeval(got_pov, dynamic_addr); + got_pov += 4; + memset(got_pov, 0, 8); + got_pov += 8; const int rel_size = elfcpp::Elf_sizes<32>::rel_size; Index: layout.h =================================================================== RCS file: /cvs/src/src/gold/layout.h,v retrieving revision 1.98 diff -u -p -r1.98 layout.h --- layout.h 14 Jul 2011 00:55:17 -0000 1.98 +++ layout.h 15 Jul 2011 15:16:43 -0000 @@ -627,6 +627,12 @@ class Layout dynpool() const { return &this->dynpool_; } + // Return the .dynamic output section. This is only valid after the + // layout has been finalized. + Output_section* + dynamic_section() const + { return this->dynamic_section_; } + // Return the symtab_xindex section used to hold large section // indexes for the normal symbol table. Output_symtab_xindex* Index: x86_64.cc =================================================================== RCS file: /cvs/src/src/gold/x86_64.cc,v retrieving revision 1.138 diff -u -p -r1.138 x86_64.cc --- x86_64.cc 13 Jul 2011 22:47:07 -0000 1.138 +++ x86_64.cc 15 Jul 2011 15:16:43 -0000 @@ -57,9 +57,10 @@ class Output_data_plt_x86_64 : public Ou Output_data_plt_x86_64(Layout* layout, Output_data_got<64, false>* got, Output_data_space* got_plt, Output_data_space* got_irelative) - : Output_section_data(16), tlsdesc_rel_(NULL), irelative_rel_(NULL), - got_(got), got_plt_(got_plt), got_irelative_(got_irelative), count_(0), - irelative_count_(0), tlsdesc_got_offset_(-1U), free_list_() + : Output_section_data(16), layout_(layout), tlsdesc_rel_(NULL), + irelative_rel_(NULL), got_(got), got_plt_(got_plt), + got_irelative_(got_irelative), count_(0), irelative_count_(0), + tlsdesc_got_offset_(-1U), free_list_() { this->init(layout); } Output_data_plt_x86_64(Layout* layout, Output_data_got<64, false>* got, @@ -67,9 +68,9 @@ class Output_data_plt_x86_64 : public Ou Output_data_space* got_irelative, unsigned int plt_count) : Output_section_data((plt_count + 1) * plt_entry_size, 16, false), - tlsdesc_rel_(NULL), irelative_rel_(NULL), got_(got), got_plt_(got_plt), - got_irelative_(got_irelative), count_(plt_count), irelative_count_(0), - tlsdesc_got_offset_(-1U), free_list_() + layout_(layout), tlsdesc_rel_(NULL), irelative_rel_(NULL), got_(got), + got_plt_(got_plt), got_irelative_(got_irelative), count_(plt_count), + irelative_count_(0), tlsdesc_got_offset_(-1U), free_list_() { this->init(layout); @@ -205,6 +206,9 @@ class Output_data_plt_x86_64 : public Ou void do_write(Output_file*); + // A pointer to the Layout class, so that we can find the .dynamic + // section when we write out the GOT PLT section. + Layout* layout_; // The reloc section. Reloc_section* rel_; // The TLSDESC relocs, if necessary. These must follow the regular @@ -1306,8 +1310,16 @@ Output_data_plt_x86_64::do_write(Output_ unsigned char* got_pov = got_view; - memset(got_pov, 0, 24); - got_pov += 24; + // The first entry in the GOT is the address of the .dynamic section + // aka the PT_DYNAMIC segment. The next two entries are reserved. + // We saved space for them when we created the section in + // Target_i386::got_section. + Output_section* dynamic = this->layout_->dynamic_section(); + uint32_t dynamic_addr = dynamic == NULL ? 0 : dynamic->address(); + elfcpp::Swap<64, false>::writeval(got_pov, dynamic_addr); + got_pov += 8; + memset(got_pov, 0, 16); + got_pov += 16; unsigned int plt_offset = plt_entry_size; unsigned int got_offset = 24;