Commit Graph

85 Commits

Author SHA1 Message Date
H.J. Lu
41e83f2b16 Make GOT entry size target-dependent
The GOT entry size is target-dependent.  This patch adds a got_entry_size
function to Sized_target class so that a target can provide a value
different from default.

	PR gold/19184
	* incremental.cc (Got_plt_view_info): Add got_entry_size.
	(Local_got_offset_visitor::visit): Replace got_entry_size_
	with info_.got_entry_size.
	(Local_got_offset_visitor::got_entry_size_): Removed.
	(Global_got_offset_visitor::visit): Replace got_entry_size_
	with info_.got_entry_size.
	(Global_got_offset_visitor::got_entry_size_): Removed.
	(Output_section_incremental_inputs::write_got_plt): Initialize
	view_info.got_entry_size.
	* target.h (Sized_target::got_entry_size): New virtual function.
	* x86_64.cc (Target_x86_64::got_entry_size): New function.
2015-10-29 09:26:41 -07:00
Marcin Kościelnicki
8d9743bd43 Support 64-bit entry size in SHT_HASH (for s390).
gold/
	* dynobj.cc (Dynobj::create_elf_hash_table): Create hash table with
	target-specific entry size.
	(Dynobj::sized_create_elf_hash_table): Add size template parameter.
	* dynobj.h (Dynobj::sized_create_elf_hash_table): Likewise.
	* layout.cc (Layout::create_dynamic_symtab): Set entsize to
	hash_entry_size.
	* target.h (Target::hash_entry_size): New method.
	(Target::Target_info::hash_entry_size): New data member.

	* aarch64.cc (Target_aarch64::aarch64_info): Add hash_entry_size.
	* arm.cc (Target_arm::arm_info): Likewise.
	(Target_arm_nacl::arm_nacl_info): Likewise.
	* i386.cc (Target_i386::i386_info): Likewise.
	(Target_i386_nacl::i386_nacl_info): Likewise.
	(Target_iamcu::iamcu_info): Likewise.
	* mips.cc (Target_mips::mips_info): Likewise.
	(Target_mips_nacl::mips_nacl_info): Likewise.
	* powerpc.cc (Target_powerpc::powerpc_info): Likewise.
	* sparc.cc (Target_sparc::sparc_info): Likewise.
	* tilegx.cc (Target_tilegx::tilegx_info): Likewise.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	(Target_x86_64_nacl::x86_64_nacl_info): Likewise.
	* testsuite/testfile.cc (Target_test::test_target_info): Likewise.
2015-10-28 16:45:37 -07:00
Cary Coutant
efc6fa128f Change Section_id type to use Relobj* instead of Object*.
2015-04-29  Cary Coutant  <cary@google.com>
	    Rafael Ávila de Espíndola <rafael.espindola@gmail.com>

gold/
	* gc.h (Garbage_collection::is_section_garbage): Change Object*
	to Relobj*.
	(Garbage_collection::add_reference): Likewise.
	(Garbage_collection::gc_process_relocs): Likewise. Don't push
	object/shndx pair onto *secvec for dynamic objects. Don't follow
	relocations pointing to dynamic objects for GC.
	* icf.cc (Icf::find_identical_sections): Change Object* to Relobj*.
	(Icf::unfold_section): Likewise.
	(Icf::is_section_folded): Likewise.
	(Icf::get_folded_section): Likewise.
	* icf.h: (Icf::get_folded_section): Likewise.
	(Icf::unfold_section): Likewise.
	(Icf::is_section_folded): Likewise.
	(Icf::section_has_function_pointers): Likewise.
	(Icf::set_section_has_function_pointers): Likewise.
	* object.h (Section_id): Likewise.
	(Const_section_id): Likewise.
	* output.cc (Output_section::update_section_layout): Likewise.
	* output.h: (Output_section_lookup_maps::find_relaxed_input_section):
	Likewise.
	* plugin.cc (update_section_order): Likewise.
	(unique_segment_for_sections): Likewise.
	* powerpc.cc (Powerpc_relobj::add_reference): Likewise.
	(Target_powerpc::do_gc_add_reference): Likewise.
	(Target_powerpc::gc_process_relocs): Likewise.
	(Target_powerpc::do_gc_add_reference): Likewise.
	* symtab.cc (Symbol_table::is_section_folded): Likewise.
	(Symbol_table::gc_mark_symbol): Likewise.
	* symtab.h: (Symbol_table::is_section_folded): Likewise.
	* target.h: (Sized_target::gc_add_reference): Likewise.
	(Sized_target::do_gc_add_reference): Likewise.
2015-05-02 08:43:27 -07:00
Alan Modra
b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
Cary Coutant
99fd8cfff7 Allow target to decide whether to include a section.
2014-04-15  Sasa Stankovic  <Sasa.Stankovic@imgtec.com>

gold/
	* layout.cc (Layout::include_section): Allow a target to decide
	whether to include a section.
	* target.h (Target::should_include_section): New function.
	(Target::do_should_include_section): New function.
2014-04-15 11:56:18 -07:00
Cary Coutant
800d982336 Allow target to adjust dynamic symbol value.
2014-03-10  Sasa Stankovic  <Sasa.Stankovic@imgtec.com>

gold/
	* symtab.cc (Symbol_table::sized_write_globals): Allow a target to
	adjust dynamic symbol value.
	* target.h (Target::adjust_dyn_symbol): New function.
	(Target::do_adjust_dyn_symbol): New function.
2014-03-10 13:35:53 -07:00
Cary Coutant
918fc1f8d2 Allow target to add custom dynamic table entries.
2014-03-10  Sasa Stankovic  <Sasa.Stankovic@imgtec.com>

gold/
	* output.cc (Output_data_dynamic::Dynamic_entry::write):
	Get the value of DYNAMIC_CUSTOM dynamic entry.
	* output.h (Output_data_dynamic::add_custom): New function.
	(Dynamic_entry::Dynamic_entry): New constructor for DYNAMIC_CUSTOM
	dynamic entry.
	(enum Dynamic_entry::Classification): Add DYNAMIC_CUSTOM.
	* target.h (Target::dynamic_tag_custom_value): New function.
	(Target::do_dynamic_tag_custom_value): New function.
2014-03-10 13:34:53 -07:00
Cary Coutant
98ff923154 Allow target to set dynsym indexes.
2014-03-10  Sasa Stankovic  <Sasa.Stankovic@imgtec.com>

gold/
	* symtab.cc (Symbol_table::set_dynsym_indexes): Allow a target to set
	dynsym indexes.
	* target.h (Target::has_custom_set_dynsym_indexes): New function.
	(Target::do_has_custom_set_dynsym_indexes): New function.
	(Target::set_dynsym_indexes): New function.
	(Target::do_set_dynsym_indexes): New function.
2014-03-10 13:33:20 -07:00
Alan Modra
4b95cf5c0c Update copyright years 2014-03-05 22:16:15 +10:30
Roland McGrath
cc84c10bfe gold/
* target.h (Target::adjust_elf_header, Target::do_adjust_elf_header):
	Remove const from declaration.
	* target.cc (Sized_target::do_adjust_elf_header): Update definition.
	* sparc.cc (Target_sparc::do_adjust_elf_header): Likewise.
	* output.h (Output_file_header): Remove const from member target_
	and corresponding constructor argument.
	* output.cc (Output_file_header::Output_file_header): Update prototype.
	(Output_file_header::do_sized_write): Use this->target_ in place
	of parameters()->target().
2013-10-11 22:02:21 +00:00
Cary Coutant
a67858e046 gold/
* parameters.cc (Parameters::entry): Return target-specific entry
    	symbol name.
    	* target.h (Target::entry_symbol_name): New function.
    	(Target_info::entry_symbol_name): New data member.

    	* arm.cc (Target_arm::arm_info): Add entry_symbol_name.
    	(Target_arm_nacl::arm_nacl_info): Likewise.
    	* i386.cc (Target_i386::i386_info): Likewise.
    	(Target_i386_nacl::i386_nacl_info): Likewise.
    	* powerpc.cc (Target_powerpc::powerpc_info): Likewise.
    	* sparc.cc (Target_sparc::sparc_info): Likewise.
    	* tilegx.cc (Target_tilegx::tilegx_info): Likewise.
    	* x86_64.cc: (Target_x86_64::x86_64_info) Likewise.
    	(Target_x86_64_nacl::x86_64_nacl_info) Likewise.
    	* testsuite/testfile.cc (Target_test::test_target_info): Likewise.
2013-07-30 21:26:53 +00:00
Alan Modra
dc3714f31f * gold.cc (queue_middle_tasks): Move detect_odr_violations..
* layout.cc (Layout_task_runner::run): ..to here.
	* symtab.h (struct Symbol_location): Extract from..
	(class Symbol_table): ..here.
	* symtab.cc (Symbol_table::linenos_from_loc): Invoke function_location.
	* target.h (class Target): Add function_location and
	do_function_location functions.
	(class Sized_target): Add do_function_location.
	* object.h (class Sized_relobj_file): Move find_shdr..
	(class Object): ..to here.
	* object.cc: Likewise.  Update to suit.  Instantiate.
	(Sized_relobj_file::find_eh_frame): Update find_shdr call.
	* powerpc.cc (class Powerpc_dynobj): New.
	(Target_powerpc::do_function_location): New function.
	(Powerpc_relobj::do_find_special_sections): Update find_shdr call.
	(Powerpc_dynobj::do_read_symbols): New function.
	(Target_powerpc::do_make_elf_object): Make a Powerpc_dynobj.
2013-03-10 23:08:18 +00:00
Alan Modra
9d5781f8a2 * target.h (Target::plt_fde_location, do_plt_fde_location): Declare.
* target.cc (Target::do_plt_fde_location): New function.
	* ehframe.h (class FDE): Add post_map field to u_.from_linker,
	accessor function, and constructor param.
	(struct Post_fde, Post_fdes): Declare.
	(Cie::write): Add post_fdes param.
	* ehframe.cc (Fde::write): Use plt_fde_location.
	(struct Post_fde): Define.
	(Cie::write): Stash FDEs added post merge mapping.
	(Eh_frame::add_ehframe_for_plt): Assert no new CIEs after mapping.
	Adjust Fde constructor call.  Bump final_data_size_ for post map FDEs.
	(Eh_frame::do_sized_write): Arrange to write post map FDES after
	other FDEs.
	* powerpc.cc (Target_powerpc::do_plt_fde_location): New function.
	(Target_powerpc::has_glink): New function.
	(Target_powerpc::do_relax): Add eh_frame info for stubs.
	(struct Eh_cie, eh_frame_cie, glink_eh_frame_fde_64,
	glink_eh_frame_fde_32, default_fde): New data.
	(Stub_table::eh_frame_added_): New var.
	(Stub_table::find_long_branch_entry, stub_address, stub_offset):
	Make const.
	(Stub_table::add_eh_frame): New function.
	(Output_data_glink::add_eh_frame): New function.
	(Target_powerpc::make_glink_section): Call add_eh_frame.
2013-02-27 23:11:56 +00:00
Roland McGrath
62fe925ad4 gold/
* target.h (Sized_target::relocate_relocs): Use Elf_Off
	for offset_in_output_section parameter.
	(Sized_target::relocate_special_relocatable): Likewise.
	* arm.cc (Target_arm::relocate_relocs): Likewise.
	(Target_arm::relocate_special_relocatable): Likewise.
	* i386.cc (Target_i386::relocate_relocs): Likewise.
	* powerpc.cc (Target_powerpc::relocate_relocs): Likewise.
	* sparc.cc (Target_sparc::relocate_relocs): Likewise.
	* target-reloc.h (relocate_relocs): Likewise.
	* testsuite/testfile.cc (Target_test): Likewise.
	* tilegx.cc (Target_tilegx::relocate_relocs): Likewise.
	* x86_64.cc (Target_x86_64::relocate_relocs): Likewise.
2012-11-01 23:27:00 +00:00
Alan Modra
19fec8c1d3 * i386.cc (Output_data_plt_i386::address_for_global,
address_for_local): Add plt offset to returned value.  Adjust uses.
	* sparc.cc (Output_data_plt_sparc::address_for_global,
	address_for_local): Likewise.
	* tilegx.cc (Output_data_plt_tilegx::address_for_global,
	address_for_local): Likewise.
	* x86_64.cc (Output_data_plt_x86_64::address_for_global,
	address_for_local): Likewise.
	* target.h (Target::plt_address_for_global, plt_address_for_local):
	Update comment.
	* output.cc (Output_reloc::symbol_value): Don't add plt offset here.
	(Output_data_got::Got_entry::write): Nor here.
	* output.h: Comment fix.
2012-10-05 00:45:54 +00:00
Alan Modra
bd73a62d77 * output.h (Output_data_got::add_global_tls, add_local_tls,
add_local_tls_pair): New functions.
	(Output_data_got::add_local_pair_with_rel): Remove second
	reloc param.  Expand comment.
	(Output_data_got::Got_entry): Rename use_plt_offset_ to
	use_plt_or_tls_offset_, similarly for constructor param.
	(Output_data_got::Got_entry::write): Add got_index param.
	* output.cc (Output_data_got::add_global_tls, add_local_tls,
	add_local_tls_pair): New functions.
	(Output_data_got::Got_entry::write): Handle tls symbols
	with use_plt_or_tls_offset_ set specially.
	(Output_data_got::add_local_pair_with_rel): Only one reloc.
	(Output_data_got::do_write): Replace iterator with index, pass
	index to entry write function.
	* target.h (Target::tls_offset_for_local, tls_offset_for_global,
	do_tls_offset_for_local, do_tls_offset_for_global): New functions.
	* arm.cc (Target_arm::Scan::local): Update add_local_pair_with_rel
	call.
	* i386.cc (Target_i386::Scan::local): Likewise.
	* sparc.cc (Target_sparc::Scan::local): Likewise.
	* x86_64.cc (Target_x86_64::Scan::local): Likewise.
	* powerpc.cc (Target_powerpc::do_tls_offset_for_local,
	do_tls_offset_for_global): New functions.
	(Target_powerpc::Scan::local): Correct TLS relocations and got
	entry values.
	(Target_powerpc::Scan::global): Don't emit unnecessary
	dynamic relocations on TLS GOT entries.
2012-09-10 23:05:54 +00:00
Alan Modra
e81fea4d17 * target.h (Target::gc_mark_symbol, do_gc_mark_symbol): New functions.
(Sized_target::gc_add_reference, do_gc_add_reference): New functions.
	* gc.h (gc_process_relocs): Call target gc_add_reference.
	* gold.cc (queue_middle_tasks): Use gc_mark_symbol on start sym.
	* symtab.cc (Symbol_table::gc_mark_undef_symbols): Use gc_mark_symbol.
	(Symbol_table::gc_mark_symbol): Call target gc_mark_symbol. Remove
	unnecessary cast.
	* powerpc.cc (Powerpc_relobj::get_opd_ent): Rearrange parameters
	to cater for when we don't need code offset.  Update use.
	(Powerpc_relobj::access_from_map_, opd_valid_): New vars.
	(Powerpc_relobj::access_from_map, add_reference, opd_valid,
	set_opd_valid): New functions.
	(Target_powerpc::do_gc_add_reference): New function.
	(Target_powerpc::gc_process_relocs): Call gc()->add_reference on
	stashed refs.
	(Target_powerpc::do_gc_mark_symbol): New function.
2012-09-09 03:43:51 +00:00
Alan Modra
7404fe1b8d * object.h (Sized_relobj_file::emit_relocs): Delete.
(Sized_relobj_file::emit_relocs_reltype): Delete.
	* reloc.cc (Sized_relobj_file::do_relocate_sections): Call target
	relocate_relocs for --emit-relocs.
	(Sized_relobj_file::emit_relocs, emit_relocs_reltype): Delete.
	* output.h: Update comment.
	(Output_segment::first_section): New function.
	(Output_segment::first_section_load_address): Use first_section.
	* output.cc (Output_segment::first_section): New function extracted..
	(Output_segment::first_section_load_address): ..from here.  Delete.
	* target-reloc.h (relocate_for_relocatable): Rename to relocate_relocs.
	* target.h (Sized_target::relocate_for_relocatable): Likewise.
	* arm.cc (Target_arm::relocate_for_relocatable): Likewise, and
	adjust call to target.h function.
	* i386.cc (Target_i386): Likewise.
	* sparc.cc (Target_sparc): Likewise.
	* x86_64.cc (Target_x86_64): Likewise.
	* powerpc.cc (Target_powerpc): Likewise.
	(Target_powerpc::Scan::local, global): Handle R_POWERPC_TLS.  Ensure
	first tls section has section symbol for optimised local dynamic
	output relocs.
	(Target_powerpc::Relocate::relocate): Correct local dynamic value.
	(Target_powerpc::relocate_relocs): Adjust relocs emitted for
	optimised tls code.
	* testsuite/testfile.cc (Target_test::relocate_for_relocatable):
	Rename to relocate_relocs.  Update error message.
2012-09-05 00:34:20 +00:00
Alan Modra
921b53228f * target.h (Target::output_section_name): New function.
(Target::do_output_section_name): New function.
	* layout.cc (Layout::choose_output_section): Call the above.
	* powerpc.cc (Target_powerpc::do_output_section_name): New function.
2012-08-14 03:39:03 +00:00
Roland McGrath
2e702c99c5 * configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF.
* configure: Regenerate.

gold/
	* nacl.cc: New file.
	* nacl.h: New file.
	* Makefile.am (CCFILES, HFILES): Add them.
	* Makefile.in: Regenerate.
	* i386.cc (Output_data_plt_i386_nacl): New class.
	(Output_data_plt_i386_nacl_exec): New class.
	(Output_data_plt_i386_nacl_dyn): New class.
	(Target_i386_nacl): New class.
	(Target_selector_i386_nacl): New class.
	(target_selector_i386): Use it instead of Target_selector_i386.
	* x86_64.cc (Output_data_plt_x86_64_nacl): New class.
	(Target_x86_64_nacl): New class.
	(Target_selector_x86_64_nacl): New class.
	(target_selector_x86_64, target_selector_x32): Use it instead of
	Target_selector_x86_64.
	* arm.cc (Output_data_plt_arm_nacl): New class.
	(Target_arm_nacl): New class.
	(Target_selector_arm_nacl): New class.
	(target_selector_arm, target_selector_armbe): Use it instead of
	Target_selector_arm.

	* target-select.cc (select_target): Take new Input_file* and off_t
	arguments, pass them on to recognize method of selector.
	* object.cc (make_elf_sized_object): Update caller.
	* parameters.cc (parameters_force_valid_target): Likewise.
	* incremental.cc (make_sized_incremental_binary): Likewise.
	* target-select.h: Update decl.
	(Target_selector::recognize): Take new Input_file* argument,
	pass it on to do_recognize.
	(Target_selector::do_recognize): Take new Input_file* argument.
	* freebsd.h (Target_selector_freebsd::do_recognize): Likewise.
	* powerpc.cc (Target_selector_powerpc::do_recognize): Likewise.
	* sparc.cc (Target_selector_sparc::do_recognize): Likewise.
	* testsuite/testfile.cc (Target_selector::do_recognize): Likewise.

	* target.h (Target::Target_info): New members isolate_execinstr
	and rosegment_gap.
	(Target::isolate_execinstr, Target::rosegment_gap): New methods.
	* arm.cc (Target_arm::arm_info): Update initializer.
	* i386.cc (Target_i386::i386_info): Likewise.
	* powerpc.cc (Target_powerpc::powerpc_info): Likewise.
	* sparc.cc (Target_sparc::sparc_info): Likewise.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	* testsuite/testfile.cc (Target_test::test_target_info): Likewise.
	* layout.cc (Layout::attach_allocated_section_to_segment):
	Take new const Target* argument.  If target->isolate_execinstr(), act
	like --rosegment.
	(Layout::find_first_load_seg): Take new const Target* argument;
	if target->isolate_execinstr(), reject PF_X segments.
	(Layout::relaxation_loop_body): Update caller.
	(Layout::set_segment_offsets): If target->isolate_execinstr(),
	reset file offset to zero when we hit LOAD_SEG, and then do a second
	loop over the segments before LOAD_SEG to reassign offsets after
	addresses have been determined.  Handle target->rosegment_gap().
	(Layout::attach_section_to_segment): Take new const Target* argument;
	pass it to attach_allocated_section_to_segment.
	(Layout::make_output_section): Update caller.
	(Layout::attach_sections_to_segments): Take new const Target* argument;
	pass it to attach_section_to_segment.
	* gold.cc (queue_middle_tasks): Update caller.
	* layout.h (Layout): Update method decls with new arguments.

	* arm.cc (Target_arm::Target_arm): Take optional argument for the
	Target_info pointer to use.
	(Target_arm::do_make_data_plt): New virtual method.
	(Target_arm::make_data_plt): New method that calls it.
	(Target_arm::make_plt_entry): Use it.
	(Output_data_plt_arm::Output_data_plt_arm): Take additional argument
	for the section alignment.
	(Output_data_plt_arm::do_first_plt_entry_offset): New abstract virtual
	method.
	(Output_data_plt_arm::first_plt_entry_offset): Call it.
	(Output_data_plt_arm::do_get_plt_entry_size): New abstract virtual
	method.
	(Output_data_plt_arm::get_plt_entry_size): Call it.
	(Output_data_plt_arm::do_fill_plt_entry): New abstract virtual method.
	(Output_data_plt_arm::fill_plt_entry): New method that calls it.
	(Output_data_plt_arm::do_fill_first_plt_entry): New abstract virtual
	method.
	(Output_data_plt_arm::fill_first_plt_entry): New method that calls it.
	(Output_data_plt_arm::set_final_data_size): Use get_plt_entry_size
	method instead of sizeof(plt_entry).
	(Output_data_plt_arm::add_entry): Likewise.
	Use first_plt_entry_offset method instead of sizeof(first_plt_entry).
	(Target_arm::first_plt_entry_offset): Call method on this->plt_ rather
	than static method.
	(Target_arm::plt_entry_size): Likewise.
	(Output_data_plt_arm::first_plt_entry, Output_data_plt_arm::plt_entry):
	Move to ...
	(Output_data_plt_arm_standard): ... here, new class.
	(Output_data_plt_arm::do_write): Move guts of PLT filling to...
	(Output_data_plt_arm_standard::do_fill_first_plt_entry): ... here ...
	(Output_data_plt_arm_standard::do_fill_plt_entry): ... and here.

	* x86_64.cc (Output_data_plt_x86_64::Output_data_plt_x86_64):
	Take additional argument for the PLT entry size.
	(Output_data_plt_x86_64::get_tlsdesc_plt_offset):
	Use get_plt_entry_size method rather than plt_entry_size variable.
	(Output_data_plt_x86_64::reserve_slot): Likewise.
	(Output_data_plt_x86_64::do_adjust_output_section): Likewise.
	(Output_data_plt_x86_64::add_entry): Likewise.
	(Output_data_plt_x86_64::add_local_ifunc_entry): Likewise.
	(Output_data_plt_x86_64::address_for_global): Likewise.
	(Output_data_plt_x86_64::address_for_local): Likewise.
	(Output_data_plt_x86_64::set_final_data_size): Likewise.
	(Output_data_plt_x86_64::first_plt_entry_offset): Likewise.
	Make method non-static.
	(Output_data_plt_x86_64::do_get_plt_entry_size): New abstract virtual
	method.
	(Output_data_plt_x86_64::get_plt_entry_size): Just call that.
	(Output_data_plt_x86_64::do_add_eh_frame): New abstract virtual method.
	(Output_data_plt_x86_64::add_eh_frame): New method to call it.
	(Output_data_plt_x86_64::do_fill_first_plt_entry): New abstract
	virtual method.
	(Output_data_plt_x86_64::fill_first_plt_entry): New method to call it.
	(Output_data_plt_x86_64::do_fill_plt_entry): New abstract
	virtual method.
	(Output_data_plt_x86_64::fill_plt_entry): New method to call it.
	(Output_data_plt_x86_64::do_fill_tlsdesc_entry): New abstract
	virtual method.
	(Output_data_plt_x86_64::fill_tlsdesc_entry): New method to call it.
	(Output_data_plt_x86_64::plt_entry_size)
	(Output_data_plt_x86_64::first_plt_entry)
	(Output_data_plt_x86_64::plt_entry)
	(Output_data_plt_x86_64::tlsdesc_plt_entry)
	(Output_data_plt_x86_64::plt_eh_frame_fde_size)
	(Output_data_plt_x86_64::plt_eh_frame_fde): Move to ...
	(Output_data_plt_x86_64_standard): ... here, new class.
	(Target_x86_64::Target_x86_64): Take optional argument for the
	Target_info pointer to use.
	(Target_x86_64::do_make_data_plt): New virtual method.
	(Target_x86_64::make_data_plt): New method to call it.
	(Target_x86_64::init_got_plt_for_update): Use that.
	Call this->plt_->add_eh_frame method here.
	(Output_data_plt_x86_64::init):	Don't do add_eh_frame_for_plt here.
	(Target_x86_64::first_plt_entry_offset): Call method on this->plt_
	rather than static method.
	(Target_x86_64::plt_entry_size): Likewise.
	(Output_data_plt_x86_64::do_write): Use get_plt_entry_size method
	rather than plt_entry_size variable.  Move guts of PLT filling to...
	(Output_data_plt_x86_64_standard::do_fill_first_plt_entry): ... here ...
	(Output_data_plt_x86_64_standard::do_fill_plt_entry): ... and here ...
	(Output_data_plt_x86_64_standard::do_fill_tlsdesc_entry): ... and here.

	* i386.cc (Output_data_plt_i386::Output_data_plt_i386): Take
	additional argument for the section alignment.
	Don't do add_eh_frame_for_plt here.
	(Output_data_plt_i386::first_plt_entry_offset): Make the method
	non-static.  Use get_plt_entry_size method rather than plt_entry_size
	variable.
	(Output_data_plt_i386::do_get_plt_entry_size): New abstract virtual
	method.
	(Output_data_plt_i386::get_plt_entry_size): Call it.
	(Output_data_plt_i386::do_add_eh_frame): New abstract virtual method.
	(Output_data_plt_i386::add_eh_frame): New method to call it.
	(Output_data_plt_i386::do_fill_first_plt_entry): New abstract virtual
	method.
	(Output_data_plt_i386::fill_first_plt_entry): New method to call it.
	(Output_data_plt_i386::do_fill_plt_entry): New abstract virtual
	method.
	(Output_data_plt_i386::fill_plt_entry): New method to call it.
	(Output_data_plt_i386::set_final_data_size): Use get_plt_entry_size
	method instead of plt_entry_size.
	(Output_data_plt_i386::plt_entry_size)
	(Output_data_plt_i386::plt_eh_frame_fde_size)
	(Output_data_plt_i386::plt_eh_frame_fde): Move to ...
	(Output_data_plt_i386_standard): ... here, new class.
	(Output_data_plt_i386_exec): New class.
	(Output_data_plt_i386::exec_first_plt_entry): Move to ...
	(Output_data_plt_i386_exec::first_plt_entry): ... here.
	(Output_data_plt_i386::exec_plt_entry): Move to ...
	(Output_data_plt_i386_exec::plt_entry): ... here.
	(Output_data_plt_i386_dyn): New class.
	(Output_data_plt_i386::first_plt_entry): Move to ...
	(Output_data_plt_i386_dyn::first_plt_entry): ... here.
	(Output_data_plt_i386::dyn_plt_entry): Move to ...
	(Output_data_plt_i386_dyn::plt_entry): ... here.
	(Target_i386::Target_i386): Take optional argument for the Target_info
	pointer to use.
	(Target_i386::do_make_data_plt): New virtual method.
	(Target_i386::make_data_plt): New method to call it.
	(Target_i386::make_plt_section): Use that.
	Call this->plt_->add_eh_frame method here.
	(Output_data_plt_i386::add_entry): Use get_plt_entry_size method
	rather than plt_entry_size variable.
	(Output_data_plt_i386::add_local_ifunc_entry): Likewise.
	(Output_data_plt_i386::address_for_local): Likewise.
	(Output_data_plt_i386::do_write): Likewise.
	Move guts of PLT filling to...
	(Output_data_plt_i386_exec::do_fill_first_plt_entry): ... here ...
	(Output_data_plt_i386_exec::do_fill_plt_entry): ... and here ...
	(Output_data_plt_i386_dyn::do_fill_first_plt_entry): ... and here ...
	(Output_data_plt_i386_dyn::do_fill_plt_entry): ... and here.

Change-Id: Id24b95600489835ff5e860a39c147203d4380c2b
2012-05-02 21:37:24 +00:00
Ian Lance Taylor
2c54b4f422 * arm.cc (Target_arm::do_is_defined_by_abi): Make sym a const
pointer.
	(Stub_addend_reader::operator()): Declare Arm_relocate_functions
	as a class, not a struct.
	(Target_arm::scan_span_for_cortex_a8_erratum): Likewise.
	(Target_arm::apply_cortex_a8_workaround): Likewise.
	* gc.h: Declare Reloc_types as a struct, not a class.
	* object.h: Declare Symbols_data as a struct.
	* reloc.h: Declare Read_relocs_data as a struct.
	* target.h: Declare Relocate_info as a struct.
2012-04-26 00:07:21 +00:00
Doug Kwan
647f15745a 2012-03-19 Doug Kwan <dougkwan@google.com>
* arm.cc (Target_arm::do_define_standard_symbols): New method.
 	(Target_arm::do_finalize_sections): Remove code which defines
	__exidx_start and __exidx_end.  Make symbol table parameter
	anonymous as it is not used.
	* gold.cc (queue_middle_tasks): Call target hook to define any
	target-specific symbols.
	* target.h (Target::define_standard_symbols): New method.
	(Target::do_define_standard_symbols): Same.
	* testsuite/Makefile.am (arm_exidx_test): Dump relocations also.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/arm_exidx.s: Generate data relocations for __exidx_start
	and __exidx_end.
	* testsuite/arm_exidx_test.sh: Check that no unused dynamic
	relocations are generated for __exidx_start and __exidx_end.
2012-03-19 23:54:07 +00:00
Cary Coutant
dd74ae0671 * gold/incremental.cc (Sized_incremental_binary::do_process_got_plt):
Use abstract base class for GOT.
	* gold/output.h (class Output_data_got_base): New abstract base class.
	(class Output_data_got): Derive from new base class, adjust ctors.
	(Output_data_got::reserve_slot): Make virtual; rename to
	do_reserve_slot; Adjust callers.
	* gold/target.h (Sized_target::init_got_plt_for_update): Return
	pointer to abstract base class.
	* gold/x86_64.cc (Target_x86_64::init_got_plt_for_update): Likewise.
2012-01-04 00:18:23 +00:00
Ian Lance Taylor
67181c72fb PR gold/12372
* target.h (Target::plt_address_for_global): New function.
	(Target::plt_address_for_local): New function.
	(Target::plt_section_for_global): Remove.
	(Target::plt_section_for_local): Remove.
	(Target::do_plt_address_for_global): New virtual function.
	(Target::do_plt_address_for_local): New virtual function.
	(Target::do_plt_section_for_global): Remove.
	(Target::do_plt_section_for_local): Remove.
	(Target::register_global_plt_entry): Add Symbol_table and Layout
	parameters.
	* output.cc (Output_data_got::Got_entry::write): Use
	plt_address_for_global and plt_address_for_local.
	* layout.cc (Layout::add_target_dynamic_tags): Use size and
	address of output section.
	* i386.cc (class Output_data_plt_i386): Add irelative_rel_,
	got_irelative_, and irelative_count_ fields.  Update
	declarations.
	(Output_data_plt_i386::has_irelative_section): New function.
	(Output_data_plt_i386::entry_count): Add irelative_count_.
	(Output_data_plt_i386::set_final_data_size): Likewise.
	(class Target_i386): Add got_irelative_ and rel_irelative_
	fields.  Update declarations.
	(Target_i386::Target_i386): Initialize new fields.
	(Target_i386::do_plt_address_for_global): New function replacing
	do_plt_section_for_global.
	(Target_i386::do_plt_address_for_local): New function replacing
	do_plt_section_for_local.
	(Target_i386::got_section): Create got_irelative_.
	(Target_i386::rel_irelative_section): New function.
	(Output_data_plt_i386::Output_data_plt_i386): Initialize new
	fields.  Don't define __rel_iplt_{start,end}.
	(Output_data_plt_i386::add_entry): Add symtab and layout
	parameters.  Change all callers.  Use different PLT and GOT for
	IFUNC symbols.
	(Output_data_plt_i386::add_local_ifunc_entry): Add symtab and
	layout parameters.  Change all callers.  Use different PLT and
	GOT.
	(Output_data_plt_i386::rel_tls_desc): Fix formatting.
	(Output_data_plt_i386::rel_irelative): New function.
	(Output_data_plt_i386::address_for_global): New function.
	(Output_data_plt_i386::address_for_local): New function.
	(Output_data_plt_i386::do_write): Write out IRELATIVE area.  Use
	IRELATIVE GOT when changing IFUNC GOT entries.
	(Target_i386::Scan::global): Use IRELATIVE GOT for IRELATIVE
	reloc.
	(Target_i386::do_finalize_sections): Create the __rel_iplt symbols
	if we didn't create an IRELATIVE GOT.
	(Target_i386::Relocate::relocate): Use plt_address_for_global and
	plt_address_for_local.
	(Target_i386::do_dynsym_value): Use plt_address_for_global.
	* x86_64.cc (class Output_data_plt_x86_64): Add irelative_rel_,
	got_irelative_, and irelative_count_ fields.  Update
	declarations.
	(Output_data_plt_x86_64::Output_data_plt_x86_64) [both versions]:
	Initialize new fields.  Remove symtab parameter.  Change all
	callers.
	(Output_data_plt_x86_64::get_tlsdesc_plt_offset): Add
	irelative_count_.
	(Output_data_plt_x86_64::has_irelative_section): New function.
	(Output_data_plt_x86_64::entry_count): Add irelative_count_.
	(class Target_x86_64): Add got_irelative_ and rel_irelative_
	fields.  Update declarations.
	(Target_x86_64::Target_x86_64): Initialize new fields.
	(Target_x86_64::do_plt_address_for_global): New function replacing
	do_plt_section_for_global.
	(Target_x86_64::do_plt_address_for_local): New function replacing
	do_plt_section_for_local.
	(Target_x86_64::got_section): Create got_irelative_.
	(Target_x86_64::rela_irelative_section): New function.
	(Output_data_plt_x86_64::init): Remove symtab parameter.  Change
	all callers.  Don't create __rel_iplt_{start,end}.
	(Output_data_plt_x86_64::add_entry): Add symtab and layout
	parameters.  Change all callers.  Use different PLT and GOT for
	IFUNC symbols.
	(Output_data_plt_x86_64::add_local_ifunc_entry): Add symtab and
	layout parameters.  Change all callers.  Use different PLT and
	GOT.
	(Output_data_plt_x86_64::add_relocation): Add symtab and layout
	parameters.  Change all callers.  Use different PLT and GOT for
	IFUNC symbols.
	(Output_data_plt_x86_64::rela_tlsdesc): Fix formatting.
	(Output_data_plt_x86_64::rela_irelative): New function.
	(Output_data_plt_x86_64::address_for_global): New function.
	(Output_data_plt_x86_64::address_for_local): New function.
	(Output_data_plt_x86_64::set_final_data_size): Likewise.
	(Output_data_plt_x86_64::do_write): Write out IRELATIVE area.
	(Target_x86_64::init_got_plt_for_update): Create got_irelative_.
	(Target_x86_64::register_global_plt_entry): Add symtab and layout
	parameters.
	(Target_x86_64::Scan::global): Use IRELATIVE GOT for IRELATIVE
	reloc.
	(Target_x86_64::do_finalize_sections): Create the __rela_iplt
	symbols if we didn't create an IRELATIVE GOT.
	(Target_x86_64::Relocate::relocate): Use plt_address_for_global and
	plt_address_for_local.
	(Target_x86_64::do_dynsym_value): Use plt_address_for_global.
	* testsuite/ifuncvar1.c: New test file.
	* testsuite/ifuncvar2.c: New test file.
	* testsuite/ifuncvar3.c: New test file.
	* testsuite/Makefile.am (check_PROGRAMS): Add ifuncvar.
	(ifuncvar1_pic.o, ifuncvar2_pic.o, ifuncvar.so): New targets.
	(ifuncvar_SOURCES, ifuncvar_DEPENDENCIES): New variables.
	(ifuncvar_LDFLAGS, ifuncvar_LDADD): New variables.
	* testsuite/Makefile.in: Rebuild.
2011-07-08 22:48:08 +00:00
Ian Lance Taylor
02d7cd4495 PR gold/12525
* ehframe.cc (Eh_frame_hdr::get_fde_pc): Handle DW_EH_PE_datarel.
	Assert if we see DW_EH_PE_indirect.
	* target.h (Target::ehframe_datarel_base): New function.
	(Target::do_ehframe_datarel_base): New target function.
	* i386.cc (Target_i386::do_ehframe_datarel_base): New function.
	* x86_64.cc (Target_x86_64::do_ehframe_datarel_base): New
	function.
2011-07-02 00:03:25 +00:00
Ian Lance Taylor
200b2bb9e8 * target.h (class Target): Add osabi_ field.
(Target::osabi): New function.
	(Target::set_osabi): New function.
	(Target::Target): Initialize osabi_.
	(Target::do_adjust_elf_header): Make pure virtual.
	(Sized_target::do_adjust_elf_header): Declare.
	* target.cc (Sized_target::do_adjust_elf_header): New function.
	(class Sized_target): Instantiate all versions.
	* freebsd.h (class Target_freebsd): Remove.
	(Target_selector_freebsd::do_recognize): Call set_osabi on
	Target.
	(Target_selector_freebsd::do_recognize_by_name): Likewise.
	(Target_selector_freebsd::set_osabi): Remove.
	* i386.cc (class Target_i386): Inherit from Sized_target rather
	than Target_freebsd.
	* x86_64.cc (class Target_x86_64): Likewise.
2011-06-28 22:25:14 +00:00
Ian Lance Taylor
b3ce541e97 * target.h (Target::can_check_for_function_pointers): Rewrite.
Make non-virtual.
	(Target::can_icf_inline_merge_sections): Likewise.
	(Target::section_may_have_icf_unsafe_poineters): Likewise.
	(Target::Target_info): Add can_icf_inline_merge_sections field.
	(Target::do_can_check_for_function_pointers): New virtual
	function.
	(Target::do_section_may_have_icf_unsafe_pointers): Likewise.
	* arm.cc (Target_arm::do_can_check_for_function_pointers): Rename
	from can_check_for_function_pointers, move in file.
	(Target_arm::do_section_may_have_icf_unsafe_pointers): Rename from
	section_may_have_icf_unsafe_poineters, move in file.
	(Target_arm::arm_info): Initialize can_icf_inline_merge_sections.
	* i386.cc (Target_i386::do_can_check_for_function_pointers):
	Rename from can_check_for_function_pointers, move in file.
	(Target_i386::can_icf_inline_merge_sections): Remove.
	(Target_i386::i386_info): Initialize
	can_icf_inline_merge_sections.
	* powerpc.cc (Target_powerpc::powerpc_info) [all versions]:
	Initialize can_icf_inline_merge_sections.
	* sparc.cc (Target_sparc::sparc_info) [both version]: Likewise.
	* x86_64.cc (Target_x86_64::do_can_check_for_function_pointers):
	Rename from can_check_for_function_pointers, move in file.
	(Target_x86_64::can_icf_inline_merge_sections): Remove.
	(Target_x86_64::x86_64_info): Initialize
	can_icf_inline_merge_sections.
	* testsuite/testfile.cc (Target_test::test_target_info):
	Likewise.
	* icf.cc (get_section_contents): Correct formatting.
2011-06-28 21:15:42 +00:00
Cary Coutant
26d3c67de1 * copy-relocs.cc (Copy_relocs::copy_reloc): Call make_copy_reloc
instead of emit_copy_reloc.
	(Copy_relocs::emit_copy_reloc): Refactor.
	(Copy_relocs::make_copy_reloc): New function.
	(Copy_relocs::add_copy_reloc): Remove.
	* copy-relocs.h (Copy_relocs::emit_copy_reloc): Move to public
	section.
	(Copy_relocs::make_copy_reloc): New function.
	(Copy_relocs::add_copy_reloc): Remove.
	* gold.cc (queue_middle_tasks): Emit old COPY relocations from
	unchanged input files.
	* incremental-dump.cc (dump_incremental_inputs): Print "COPY" flag.
	* incremental.cc (Sized_incremental_binary::do_reserve_layout):
	Reserve BSS space for COPY relocations.
	(Sized_incremental_binary::do_emit_copy_relocs): New function.
	(Output_section_incremental_inputs::write_info_blocks): Record
	whether a symbol is copied from a shared object.
	(Sized_incr_dynobj::do_add_symbols): Record COPY relocations.
	* incremental.h (enum Incremental_shlib_symbol_flags): New type.
	(INCREMENTAL_SHLIB_SYM_FLAGS_SHIFT): New constant.
	(Incremental_input_entry_reader::get_output_symbol_index): Add
	is_copy parameter.
	(Incremental_binary::emit_copy_relocs): New function.
	(Incremental_binary::do_emit_copy_relocs): New function.
	(Sized_incremental_binary::Sized_incremental_binary): Initialize
	new data member.
	(Sized_incremental_binary::add_copy_reloc): New function.
	(Sized_incremental_binary::do_emit_copy_relocs): New function.
	(Sized_incremental_binary::Copy_reloc): New struct.
	(Sized_incremental_binary::Copy_relocs): New typedef.
	(Sized_incremental_binary::copy_relocs_): New data member.
	* symtab.cc (Symbol_table::add_from_incrobj): Change return type.
	* symtab.h (Symbol_table::add_from_incrobj): Change return type.
	* target.h (Sized_target::emit_copy_reloc): New function.
	* x86_64.cc (Target_x86_64::emit_copy_reloc): New function.
2011-06-08 03:50:12 +00:00
Cary Coutant
6fa2a40bf4 * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc
info; adjust display of GOT entries.
	* incremental.cc (Sized_incremental_binary::setup_readers): Allocate
	vector of input objects; remove file_status_.
	(Sized_incremental_binary::do_reserve_layout): Remove file_status_.
	(Sized_incremental_binary::do_process_got_plt): Adjust calls to
	got_plt reader; call target hooks to reserve GOT entries.
	(Output_section_incremental_inputs::set_final_data_size): Adjust size
	of input file info header and GOT info entry.
	(Output_section_incremental_inputs::write_info_blocks): Write dynamic
	relocation info.
	(Got_plt_view_info::got_descriptor): Remove.
	(Got_plt_view_info::sym_index): New data member.
	(Got_plt_view_info::input_index): New data member.
	(Local_got_offset_visitor::visit): Write input file index.
	(Global_got_offset_visitor::visit): Write 0 for input file index.
	(Global_symbol_visitor_got_plt::operator()): Replace got_descriptor
	with sym_index and input_index.
	(Output_section_incremental_inputs::write_got_plt): Adjust size of
	incremental info GOT entry; replace got_descriptor with input_index.
	(Sized_relobj_incr::Sized_relobj_incr): Adjust initializers; record
	map from input file index to object.
	(Sized_relobj_incr::do_layout): Replace direct data member reference
	with accessor function.
	(Sized_relobj_incr::do_for_all_local_got_entries): Move to base class.
	* incremental.h (Incremental_input_entry_reader::get_symbol_offset):
	Adjust size of input file info header.
	(Incremental_input_entry_reader::get_first_dyn_reloc): New function.
	(Incremental_input_entry_reader::get_dyn_reloc_count): New function.
	(Incremental_input_entry_reader::get_input_section): Adjust size of
	input file info header.
	(Incremental_got_plt_reader::Incremental_got_plt_reader): Adjust size
	of incremental info GOT entry.
	(Incremental_got_plt_reader::get_got_desc): Remove.
	(Incremental_got_plt_reader::get_got_symndx): New function.
	(Incremental_got_plt_reader::get_got_input_index): New function.
	(Sized_incremental_binary::Sized_incremental_binary): Remove
	file_status_; add input_objects_.
	(Sized_incremental_binary::~Sized_incremental_binary): Remove.
	(Sized_incremental_binary::set_file_is_unchanged): Remove.
	(Sized_incremental_binary::file_is_unchanged): Remove.
	(Sized_incremental_binary::set_input_object): New function.
	(Sized_incremental_binary::input_object): New function.
	(Sized_incremental_binary::file_status_): Remove.
	(Sized_incremental_binary::input_objects_): New data member.
	(Sized_relobj_incr): Rename Sized_incr_relobj to this; adjust all
	references.
	(Sized_relobj_incr::invalid_address): Move to base class.
	(Sized_relobj_incr::is_output_section_offset_invalid): Move to base
	class.
	(Sized_relobj_incr::do_output_section_offset): Likewise.
	(Sized_relobj_incr::do_for_all_local_got_entries): Likewise.
	(Sized_relobj_incr::section_offsets_): Likewise.
	* object.cc (Sized_relobj::do_for_all_local_got_entries): New
	function.
	(Sized_relobj_file::Sized_relobj_file): Remove local_got_offsets_.
	(Sized_relobj_file::layout_section): Replace refs to section_offsets_
	with accessor function.
	(Sized_relobj_file::do_layout): Likewise.
	(Sized_relobj_file::do_layout_deferred_sections): Likewise.
	(Sized_relobj_file::do_for_all_local_got_entries): Move to base class.
	(Sized_relobj_file::compute_final_local_value): Replace refs to
	section_offsets_ with accessor function.
	(Sized_relobj_file::do_finalize_local_symbols): Likewise.
	* object.h (Relobj::Relobj): Initialize new data members.
	(Relobj::add_dyn_reloc): New function.
	(Relobj::first_dyn_reloc): New function.
	(Relobj::dyn_reloc_count): New function.
	(Relobj::first_dyn_reloc_): New data member.
	(Relobj::dyn_reloc_count_): New data member.
	(Sized_relobj): Rename Sized_relobj_base to this; adjust all
	references.
	(Sized_relobj::Address): New typedef.
	(Sized_relobj::invalid_address): Move here from child class.
	(Sized_relobj::Sized_relobj): Initialize new data members.
	(Sized_relobj::sized_relobj): New function.
	(Sized_relobj::is_output_section_offset_invalid): Move here from
	child class.
	(Sized_relobj::get_output_section_offset): Likewise.
	(Sized_relobj::local_has_got_offset): Likewise.
	(Sized_relobj::local_got_offset): Likewise.
	(Sized_relobj::set_local_got_offset): Likewise.
	(Sized_relobj::do_for_all_local_got_entries): Likewise.
	(Sized_relobj::clear_got_offsets): New function.
	(Sized_relobj::section_offsets): Move here from child class.
	(Sized_relobj::do_output_section_offset): Likewise.
	(Sized_relobj::do_set_section_offset): Likewise.
	(Sized_relobj::Local_got_offsets): Likewise.
	(Sized_relobj::local_got_offsets_): Likewise.
	(Sized_relobj::section_offsets_): Likewise.
	(Sized_relobj_file): Rename Sized_relobj to this; adjust all
	references.
	(Sized_relobj_file::is_output_section_offset_invalid): Move to base
	class.
	(Sized_relobj_file::sized_relobj): New function
	(Sized_relobj_file::local_has_got_offset): Move to base class.
	(Sized_relobj_file::local_got_offset): Likewise.
	(Sized_relobj_file::set_local_got_offset): Likewise.
	(Sized_relobj_file::get_output_section_offset): Likewise.
	(Sized_relobj_file::do_for_all_local_got_entries): Likewise.
	(Sized_relobj_file::do_output_section_offset): Likewise.
	(Sized_relobj_file::do_set_section_offset): Likewise.
	(Sized_relobj_file::Local_got_offsets): Likewise.
	(Sized_relobj_file::local_got_offsets_): Likewise.
	(Sized_relobj_file::section_offsets_): Likewise.
	* output.cc (Output_reloc::Output_reloc): Adjust type of relobj
	(all constructors).
	(set_needs_dynsym_index): Convert relobj to derived class pointer.
	(Output_reloc::get_symbol_index): Likewise.
	(Output_reloc::local_section_offset): Likewise.
	(Output_reloc::get_address): Likewise.
	(Output_reloc::symbol_value): Likewise.
	(Output_data_got::reserve_slot): Move to class definition.
	(Output_data_got::reserve_local): New function.
	(Output_data_got::reserve_slot_for_global): Remove.
	(Output_data_got::reserve_global): New function.
	* output.h (Output_reloc::Output_reloc): Adjust type of relobj
	(all constructors, two instantiations).
	(Output_reloc::get_relobj): New function (two instantiations).
	(Output_reloc::u1_.relobj, Output_reloc::u2_.relobj): Adjust type.
	(Output_data_reloc_base::add): Convert relobj to derived class pointer.
	(Output_data_reloc::add_global): Adjust type of relobj.
	(Output_data_reloc::add_global_relative): Likewise.
	(Output_data_reloc::add_symbolless_global_addend): Likewise.
	(Output_data_reloc::add_local): Likewise.
	(Output_data_reloc::add_local_relative): Likewise.
	(Output_data_reloc::add_symbolless_local_addend): Likewise.
	(Output_data_reloc::add_local_section): Likewise.
	(Output_data_reloc::add_output_section): Likewise.
	(Output_data_reloc::add_absolute): Likewise.
	(Output_data_reloc::add_target_specific): Likewise.
	(Output_data_got::reserve_slot): Move definition here.
	(Output_data_got::reserve_local): New function.
	(Output_data_got::reserve_global): New function.
	* reloc.cc (Sized_relobj_file::do_read_relocs): Replace refs to
	section_offsets_ with accessor function.
	(Sized_relobj_file::write_sections): Likewise.
	(Sized_relobj_file::do_relocate_sections): Likewise.
	* target.h (Sized_target::reserve_local_got_entry): New function.
	(Sized_target::reserve_global_got_entry): New function.
	* x86_64.cc (Target_x86_64::reserve_local_got_entry): New function.
	(Target_x86_64::reserve_global_got_entry): New function.
	(Target_x86_64::init_got_plt_for_update): Create rela_dyn section.
2011-05-24 21:41:10 +00:00
Cary Coutant
4829d394de * gold.cc (queue_middle_tasks): Process existing GOT/PLT entries.
* incremental-dump.cc (dump_incremental_inputs): Mask high-order
	bit when checking got_type.
	* incremental.cc (Sized_incremental_binary::setup_readers):
	Store symbol table and string table locations; initialize bit vector
	of file status flags.
	(Sized_incremental_binary::do_reserve_layout): Set bit flag for
	unchanged files.
	(Sized_incremental_binary::do_process_got_plt): New function.
	(Sized_incremental_binary::get_symtab_view): Use stored locations.
	(Output_section_incremental_inputs::set_final_data_size): Record
	file index for each input file.
	(Output_section_incremental_inputs::write_got_plt): Store file index
	instead of input entry offset for each GOT entry.
	* incremental.h
	(Incremental_input_entry::Incremental_input_entry): Initialize new
	data member.
	(Incremental_input_entry::set_offset): Store file index.
	(Incremental_input_entry::get_file_index): New function.
	(Incremental_input_entry::file_index_): New data member.
	(Incremental_binary::process_got_plt): New function.
	(Incremental_binary::do_process_got_plt): New function.
	(Sized_incremental_binary::Sized_incremental_binary): Initialize new
	data members.
	(Sized_incremental_binary::~Sized_incremental_binary): New destructor.
	(Sized_incremental_binary::set_file_is_unchanged): New function.
	(Sized_incremental_binary::file_is_unchanged): New function.
	(Sized_incremental_binary::do_process_got_plt): New function.
	(Sized_incremental_binary::file_status_): New data member.
	(Sized_incremental_binary::main_symtab_loc_): New data member.
	(Sized_incremental_binary::main_strtab_loc_): New data member.
	* output.cc (Output_data_got::Got_entry::write): Add case
	RESERVED_CODE.
	(Output_data_got::add_global): Call add_got_entry.
	(Output_data_got::add_global_plt): Likewise.
	(Output_data_got::add_global_with_rel): Likewise.
	(Output_data_got::add_global_with_rela): Likewise.
	(Output_data_got::add_global_pair_with_rel): Call add_got_entry_pair.
	(Output_data_got::add_global_pair_with_rela): Likewise.
	(Output_data_got::add_local): Call add_got_entry.
	(Output_data_got::add_local_plt): Likewise.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_with_rela): Likewise.
	(Output_data_got::add_local_pair_with_rel): Call add_got_entry_pair.
	(Output_data_got::add_local_pair_with_rela): Likewise.
	(Output_data_got::reserve_slot): New function.
	(Output_data_got::reserve_slot_for_global): New function.
	(Output_data_got::add_got_entry): New function.
	(Output_data_got::add_got_entry_pair): New function.
	(Output_section::add_output_section_data): Edit FIXME.
	* output.h
	(Output_section_data_build::Output_section_data_build): New
	constructor with size parameter.
	(Output_data_space::Output_data_space): Likewise.
	(Output_data_got::Output_data_got): Initialize new data member; new
	constructor with size parameter.
	(Output_data_got::add_constant): Call add_got_entry.
	(Output_data_got::reserve_slot): New function.
	(Output_data_got::reserve_slot_for_global): New function.
	(class Output_data_got::Got_entry): Add RESERVED_CODE.
	(Output_data_got::add_got_entry): New function.
	(Output_data_got::add_got_entry_pair): New function.
	(Output_data_got::free_list_): New data member.
	* target.h (Sized_target::init_got_plt_for_update): New function.
	(Sized_target::register_global_plt_entry): New function.
	* x86_64.cc (Output_data_plt_x86_64::Output_data_plt_x86_64):
	Initialize new data member; call init; add constructor with PLT count.
	(Output_data_plt_x86_64::init): New function.
	(Output_data_plt_x86_64::add_relocation): New function.
	(Output_data_plt_x86_64::reserve_slot): New function.
	(Output_data_plt_x86_64::free_list_): New data member.
	(Target_x86_64::init_got_plt_for_update): New function.
	(Target_x86_64::register_global_plt_entry): New function.
	(Output_data_plt_x86_64::add_entry): Allocate from free list for
	incremental updates.
	(Output_data_plt_x86_64::add_relocation): New function.
	* testsuite/object_unittest.cc (Object_test): Set default options.
2011-05-23 23:27:11 +00:00
Cary Coutant
94a3fc8b83 * incremental.cc (Sized_incremental_binary::setup_readers): Allocate
global symbol map.
	(Sized_incremental_binary::do_apply_incremental_relocs): New function.
	(Sized_incr_relobj::do_add_symbols): Add symbols to global symbol map.
	(Sized_incr_relobj::do_relocate): Remap section indices in incremental
	relocations.
	(Sized_incr_dynobj::do_add_symbols): Add symbols to global symbol map.
	(Sized_incr_dynobj::do_for_all_global_symbols): Remove FIXME.
	(Sized_incr_dynobj::do_for_all_local_got_entries): Likewise.
	* incremental.h
	(Incremental_inputs_reader::global_symbol_reader_at_offset): New
	function.
	(Incremental_binary::apply_incremental_relocs): New function.
	(Incremental_binary::do_apply_incremental_relocs): New function.
	(Sized_incremental_binary::Sized_incremental_binary): Initialize new
	data member.
	(Sized_incremental_binary::add_global_symbol): New function.
	(Sized_incremental_binary::global_symbol): New function.
	(Sized_incremental_binary::do_apply_incremental_relocs): New function.
	(Sized_incremental_binary::symbol_map_): New data member.
	* layout.cc (Layout_task_runner::run): Apply incremental relocations.
	* target.h (Sized_target::apply_relocation): New function.
	* target-reloc.h (apply_relocation): New function.
	* x86_64.cc (Target_x86_64::apply_relocation): New function.
2011-04-22 22:39:55 +00:00
Ralf Wildenhues
9b547ce683 Fix typos in gold.
gold/:
	* dwarf_reader.cc: Remove outdated comment.
	* gold-threads.cc: Fix typo in error message.
	* archive.cc: Fix typos in comments.
	* archive.h: Likewise.
	* arm-reloc-property.cc: Likewise.
	* arm-reloc-property.h: Likewise.
	* arm-reloc.def: Likewise.
	* arm.cc: Likewise.
	* attributes.h: Likewise.
	* cref.cc: Likewise.
	* ehframe.cc: Likewise.
	* fileread.h: Likewise.
	* gold.h: Likewise.
	* i386.cc: Likewise.
	* icf.cc: Likewise.
	* incremental.h: Likewise.
	* int_encoding.cc: Likewise.
	* layout.h: Likewise.
	* main.cc: Likewise.
	* merge.h: Likewise.
	* object.cc: Likewise.
	* object.h: Likewise.
	* options.cc: Likewise.
	* readsyms.cc: Likewise.
	* reduced_debug_output.cc: Likewise.
	* reloc.cc: Likewise.
	* script-sections.cc: Likewise.
	* sparc.cc: Likewise.
	* symtab.h: Likewise.
	* target-reloc.h: Likewise.
	* target.cc: Likewise.
	* target.h: Likewise.
	* timer.cc: Likewise.
	* timer.h: Likewise.
	* x86_64.cc: Likewise.
2010-12-14 19:03:30 +00:00
Doug Kwan
f625ae503e 2010-11-08 Doug Kwan <dougkwan@google.com>
Cary Coutant  <ccoutant@google.com>

	* arm.cc (Arm_exidx_merge_section::build_contents): New method.
	(Arm_exidx_merge_section::section_contents_): New data member.
	(Arm_input_section::Arm_input_section): Initialize original_contents_.
	(Arm_input_section::~Arm_input_section): De-allocate memory.
	(Arm_input_section::original_contents_): New data member.
	(Arm_exidx_fixup::process_exidx_section): Pass EXIDX section contents
	in parameters instead of calling Object::section_contents without
	locking.
	(Arm_output_section::group_section): New parameter TASK.  Pass it
	to callees that need locking objects.
	(Arm_output_section::fix_exidx_coverage): New parameter TASK.  Use it
	to lock EXIDX input sections.  Fix a formatting issue.  Call
	Arm_exidx_merged_section::build_contents to create merged section
	contents.
	(Arm_output_section::create_stub_group): New parameter TASK.  Use it
	to lock object of stub table owner.
	(Arm_exidx_input_section::Arm_exidx_input_section): Add new parameter
	TEXT_SIZE to initialize data member TEXT_SIZE_.
	(Arm_exidx_input_section::addralign): Fix typo in comment.
	(Arm_exidx_input_section::text_size): New method.
	(Target_arm::do_relax): New parameter TASK.  Pass it to callees
	that require locking objects.  Lock objects before scanning for stubs
	and updating local symbols.
	(Arm_input_section<big_endian>::init): Copy contents of original
	input section.
 	(Arm_input_section<big_endian>::do_write): Use saved contents of
	original input section instead of calling Object::section_contents
	without locking.
	(Arm_exidx_cantunwind::do_fixed_endian_write): Find out text section
	size without calling Object::section_size().
	(Arm_exidx_merged_section::Arm_exidx_merged_section): Add sanity check
	for size.  Allocate a buffer for merged EXIDX entries.
	(Arm_exidx_merged_section::build_contents): New method.
 	(Arm_exidx_merged_section::do_write): Move merge section contents
	building code to Arm_exidx_merged_section::build_contetns.  Write
	out contetns in buffer instead of building it on the fly.
	(Arm_relobj::make_exidx_input_section): Also pass text section size
	to Arm_exidx_input_section constructor.
	(Arm_relobj::do_read_symbols): Fix memory leak.  Fix a formatting issue.
	(Arm_dynobj::do_read_symbols): Fix memory leak.
	* layout.cc (Layout::finalize): Pass TASK to Target::relax().
	* target.h: (class Task): Add forward declaration.
	(Target::relax): Add new parameter TASK and pass it to
	Target::do_relax().
	(Target::do_relax):: New parameter TASK.  Fix a formatting issue.
2010-11-09 07:56:10 +00:00
Sriraman Tallam
c95e9f2791 2010-09-28 Sriraman Tallam <tmsriram@google.com>
* target.h (Target::can_icf_inline_merge_sections): New virtual
	function.
	* x86_64.cc (Target__x86_64::can_icf_inline_merge_sections): New
	virtual function.
	* i386.cc (Target_i386::can_icf_inline_merge_sections): New
	virtual function.
	* icf.cc (get_section_contents): Inline merge sections only when
	target allows it.
2010-09-28 17:14:15 +00:00
Ian Lance Taylor
7223e9ca5a PR 10893
* i386.cc (class Output_data_plt_i386): Update declarations.
	Define Global_ifunc and Local_ifunc types.  Add global_ifuncs_ and
	local_ifuncs_ fields.
	(Target_i386::do_plt_section_for_global): New function.
	(Target_i386::do_plt_section_for_local): New function.
	(Output_data_plt_i386::Output_data_plt_i386): Add symtab
	parameter; change all callers.  Initialize global_ifuncs_ and
	local_ifuncs_.  If doing a static link define __rel_iplt_start and
	__rel_iplt_end.
	(Output_data_plt_i386::add_entry): Handle IFUNC symbols.
	(Output_data_plt_i386::add_local_ifunc_entry): New function.
	(Output_data_plt_i386::do_write): Fix GOT entries for IFUNC
	symbols.
	(Target_i386::make_plt_section): New function, broken out of
	make_plt_entry.  Set sh_info field of .rel.plt to point to .plt.
	(Target_i386::make_plt_entry): Call make_plt_section.
	(Target_i386::make_local_ifunc_plt_entry): New function.
	(Target_i386::Scan::reloc_needs_iplt_for_ifunc): New function.
	(Target_i386::Scan::local): Handle IFUNC symbols.  Add
	R_386_IRELATIVE to switch.
	(Target_i386::Scan::global): Likewise.
	(Target_i386::Relocate::relocate): Likewise.
	(Target_i386::Relocatable_size_for_reloc): Add R_386_IRELATIVE to
	switch.
	* x86_64.cc (class Output_data_plt_x86_64): Update declarations.
	(Target_x86_64::do_plt_section_for_global): New function.
	(Target_x86_64::do_plt_section_for_local): New function.
	(Output_data_plt_x86_64::Output_data_plt_x86_64): Add symtab
	parameter; change all callers.  If doing a static link define
	__rela_iplt_start and __rela_iplt_end.
	(Output_data_plt_x86_64::add_entry): Handle IFUNC symbols.
	(Output_data_plt_x86_64::add_local_ifunc_entry): New function.
	(Target_x86_64::make_plt_section): Set sh_info field of .rel.plt
	to point to .plt.
	(Target_x86_64::make_local_ifunc_plt_entry): New function.
	(Target_x86_64::Scan::check_non_pic): Add R_X86_64_IRELATIVE to
	switch.
	(Target_x86_64::Scan::reloc_needs_iplt_for_ifunc): New function.
	(Target_x86_64::Scan::local): Handle IFUNC symbols.  Add
	R_X86_64_IRELATIVE to switch.
	(Target_x86_64::Scan::global): Likewise.
	(Target_x86_64::Relocate::relocate): Likewise.
	(Target_x86_64::Relocatable_size_for_reloc): Add R_X86_64_IRELATIVE to
	switch.
	* target.h (class Target): Add plt_section_for_global and
	plt_section_for_local functions.  Add do_plt_section_for_global
	and do_plt_section_for_local virtual functions.
	* symtab.h (Symbol::needs_plt_entry): Handle IFUNC symbol.  Add
	clarifying comments.
	(Symbol::use_plt_offset): Handle IFUNC symbol.
	* object.cc (Sized_relobj::Sized_relobj): Initialize
	local_plt_offsets_.
	(Sized_relobj::local_has_plt_offset): New function.
	(Sized_relobj::local_plt_offset): New function.
	(Sized_relobj::set_local_plt_offset): New function.
	(Sized_relobj::do_count): Handle IFUNC symbol.
	* object.h (class Symbol_value): Add is_ifunc_symbol_ field.  Take
	a bit away from input_shndx_ field.  Add set_is_func_symbol and
	is_ifunc_symbol functions.
	(class Sized_relobj): Update declarations.  Remove Tls_got_entry
	and Local_tls_got_offsets.  Define Local_plt_offsets.  Add
	local_plt_offsets_ field.
	(Sized_relobj::clear_local_symbols): Clear local_plt_offsets_.
	* output.h (class Output_section_data): Add non-const
	output_section function.
	(class Output_data_got): Update declarations.
	(class Output_data_got::Got_entry): Add use_plt_offset_ field.
	Add use_plt_offset parameter to global and local constructors.
	Change all callers.  Change local_sym_index_ field to 31 bits.
	Change GSYM_CODE and CONSTANT_CODE accordingly.
	* output.cc (Output_data_reloc_base::do_adjust_output_section): If
	doing a static link don't set sh_link field.
	(Output_data_got::Got_entry::write): Use PLT offset if
	appropriate.
	(Output_data_got::add_global_plt): New function.
	(Output_data_got::add_local_plt): New function.
	* target-reloc.h (relocate_section): Handle IFUNC symbol.
	* defstd.cc (in_section): Remove entries for __rel_iplt_start,
	__rel_iplt_end, __rela_iplt_start, and __rela_iplt_end.
	* configure.ac: Set IFUNC automake conditional for glibc >= 2.11.
	* testsuite/Makefile.am: Add a bunch of IFUNC tests, all within
	IFUNC conditional.
	* testsuite/ifunc-sel.h: New file.
	* testsuite/ifuncmain1.c: New file.
	* testsuite/ifuncmain1vis.c: New file.
	* testsuite/ifuncmod1.c: New file.
	* testsuite/ifuncdep2.c: New file.
	* testsuite/ifuncmain2.c: New file.
	* testsuite/ifuncmain3.c: New file.
	* testsuite/ifuncmod3.c: New file.
	* testsuite/ifuncmain4.c: New file.
	* testsuite/ifuncmain5.c: New file.
	* testsuite/ifuncmod5.c: New file.
	* testsuite/ifuncmain6pie.c: New file.
	* testsuite/ifuncmod6.c: New file.
	* testsuite/ifuncmain7.c: New file.
	* configure, testsuite/Makefile.in: Rebuild.
2010-08-19 22:50:16 +00:00
Cary Coutant
0e70b9111a elfcpp/ChangeLog:
* elfcpp.h (enum SHT): Add SHT_GNU_INCREMENTAL_GOT_PLT.

gold/ChangeLog:

	* arm.cc (Target_arm::got_size): Add const.
	(Target_arm::got_entry_count): New function.
	(Target_arm::plt_entry_count): New function.
	(Target_arm::first_plt_entry_offset): New function.
	(Target_arm::plt_entry_size): New function.
	(Output_data_plt_arm::entry_count): New function.
	(Output_data_plt_arm::first_plt_entry_offset): New function.
	(Output_data_plt_arm::get_plt_entry_size): New function.
	* i386.cc (Target_i386::got_size): Add const.
	(Target_i386::got_entry_count): New function.
	(Target_i386::plt_entry_count): New function.
	(Target_i386::first_plt_entry_offset): New function.
	(Target_i386::plt_entry_size): New function.
	(Output_data_plt_i386::entry_count): New function.
	(Output_data_plt_i386::first_plt_entry_offset): New function.
	(Output_data_plt_i386::get_plt_entry_size): New function.
	* incremental-dump.cc (dump_incremental_inputs): Adjust call to
	find_incremental_inputs_sections.  Dump incremental_got_plt section.
	* incremental.cc: Include target.h.
	(Sized_incremental_binary::do_find_incremental_inputs_sections): Add
	parameter.  Adjust all callers.  Find incremental_got_plt section.
	(Incremental_inputs::create_data_sections): Create incremental_got_plt
	section.
	(Output_section_incremental_inputs::set_final_data_size): Calculate
	size of incremental_got_plt section.
	(Output_section_incremental_inputs::do_write): Write the
	incremental_got_plt section.
	(Got_plt_view_info): New struct.
	(Local_got_offset_visitor): New class.
	(Global_got_offset_visitor): New class.
	(Global_symbol_visitor_got_plt): New class.
	(Output_section_incremental_inputs::write_got_plt): New function.
	* incremental.h (Incremental_binary::find_incremental_inputs_sections):
	Add parameter.  Adjust all callers.
	(Incremental_binary::do_find_incremental_inputs_sections): Likewise.
	(Incremental_inputs::got_plt_section): New function.
	(Incremental_inputs::got_plt_section_): New data member.
	(Incremental_got_plt_reader): New class.
	* layout.cc (Layout::create_incremental_info_sections): Add the
	incremental_got_plt section.
	* object.h (Got_offset_list::get_list): New function.
	(Got offset_list::for_all_got_offsets): New function.
	(Sized_relobj::local_got_offset_list): New function.
	* powerpc.cc (Target_powerpc::got_size): Add const.
	(Target_powerpc::got_entry_count): New function.
	(Target_powerpc::plt_entry_count): New function.
	(Target_powerpc::first_plt_entry_offset): New function.
	(Target_powerpc::plt_entry_size): New function.
	(Output_data_plt_powerpc::entry_count): New function.
	(Output_data_plt_powerpc::first_plt_entry_offset): New function.
	(Output_data_plt_powerpc::get_plt_entry_size): New function.
	* sparc.cc (Target_sparc::got_size): Add const.
	(Target_sparc::got_entry_count): New function.
	(Target_sparc::plt_entry_count): New function.
	(Target_sparc::first_plt_entry_offset): New function.
	(Target_sparc::plt_entry_size): New function.
	(Output_data_plt_sparc::entry_count): New function.
	(Output_data_plt_sparc::first_plt_entry_offset): New function.
	(Output_data_plt_sparc::get_plt_entry_size): New function.
	* symtab.h (Symbol::got_offset_list): New function.
	(Symbol_table::for_all_symbols): New function.
	* target.h (Sized_target::got_entry_count): New function.
	(Sized_target::plt_entry_count): New function.
	(Sized_target::plt_entry_size): New function.
	* x86_64.cc (Target_x86_64::got_size): Add const.
	(Target_x86_64::got_entry_count): New function.
	(Target_x86_64::plt_entry_count): New function.
	(Target_x86_64::first_plt_entry_offset): New function.
	(Target_x86_64::plt_entry_size): New function.
	(Output_data_plt_x86_64::entry_count): New function.
	(Output_data_plt_x86_64::first_plt_entry_offset): New function.
	(Output_data_plt_x86_64::get_plt_entry_size): New function.
2010-08-12 22:15:00 +00:00
Doug Kwan
8a75a161b2 2010-06-25 Doug Kwan <dougkwan@google.com>
* arm.cc (Target_arm::can_check_for_functions_pointers): Return true.
	(Target_arm::section_may_have_icf_unsafe_pointers): New method
	definition.
	(Target_arm::Scan::local_reloc_may_be_function_pointer,
	Target_arm::Scan::global_reloc_may_be_function_pointer): Implement
	target hook to detect function points.
	(Target_arm::Scan::possible_function_pointer_reloc): New method.
	* icf.h (Icf::check_section_for_function_pointers): Change type of
	parameter SECTION_NAME to const reference to std::string.  Use
	target hook to determine if section may have unsafe pointers.
	* target.h (Target::section_may_have_icf_unsafe_pointers): New
	method definition.
2010-06-25 00:37:40 +00:00
Doug Kwan
5c3885291f 2010-05-26 Doug Kwan <dougkwan@google.com>
* arm.cc (Arm_scan_relocatable_relocs): New class.
	(Target_arm::relocate_special_relocatable): New method.
	(Arm_relocate_functions::arm_branch_common): Handle relocatable link.
	(Arm_relocate_functions::thumb_branch_common): Same.
	(Target_arm::scan_relocatable_relocs): Use Arm_scan_relocatable_relocs
	instead of Default_scan_relocatable_relocs.
	* target-reloc.h (relocate_for_relocatable): Let target handle
	relocation strategy Relocatable_relocs::RELOC_SPECIAL.
	* target.h (Sized_target::relocate_special_relocatable): New method.
2010-05-26 03:33:59 +00:00
Doug Kwan
7296d93387 2010-04-07 Doug Kwan <dougkwan@google.com>
* arm.cc: Replace "endianity" with "endianness" in comments.
	(Arm_exidx_cantunwind): Ditto.
	(Arm_relobj::Arm_relobj): Initialize merge_flags_and_attribures.
	(Arm_relobj::merge_flags_and_attributes): New method.
	(Arm_relobj::merge_flags_and_attributes_): New data member.
	(Arm_exidx_cantunwind::do_fixed_endian_write): Fix formatting.
	(Arm_relobj::scan_sections_for_stubs): Ditto.
	(Arm_relobj::do_read_symbols): Check to see if we really want to
	merge processor-specific flags and attributes.  Exit early if
	an object is empty except for section names and the undefined symbol.
	(Target_arm::do_finalize_sections): Move check for ELF format to
	Arm_relobj::do_read_symbols.  Merge processor specific flags and
	attributes from a regular object only when we have determined that
	it is aapropriate.  Do not create an .ARM.attributes section in
	output if there is no regular input object.
	(Target_arm::merge_processor_specific_flags): Check
	--warn-mismatch before printing any error.
	(Target_arm::merge_object_attributes): Ditto.
	* gold.cc (queue_middle_tasks): Handle the case in which there is
	no regular object in input.
	* options.cc (General_options::parse_EB): New method.
	(General_options::parse_EL): Same.
	(General_options::General_options): Initialize endianness_.
	* options.h (-EB, -EL, -no-pipeline-knowledge, -p, --warn-mismatch):
	New options.
	(General_options::Endianness): New enum.
	(General_options::endianness): New method.
	(General_options::endianness_): New data member.
	* parameters.cc (Parameters::set_options): Check target endianness.
	(Parameters::set_target_once): Ditto.
	(Parameters::check_target_endianness): New method.
	(parameters_force_valid_target): If either -EL or -EB is specified,
	use it to define endianness of default target.
	* parameters.h (Parameters::check_target_endianness): New method
	declaration.
	* target.h (class Target): Change "endianity" to "endianness"
	in comments.
2010-04-07 21:42:22 +00:00
Ian Lance Taylor
b6848d3c09 * reloc.cc (Sized_relobj::split_stack_adjust_reltype): Call the
target to ask whether a reference to a symbol requires a stack
	split.
	* target.h (Target::is_call_to_non_split): New function.
	(Target::do_is_call_to_non_split): Declare virtual function.
	* target.cc: Include "symtab.h".
	(Target::do_is_call_to_non_split): New function.
	* i386.cc (Target_i386::do_is_call_to_non_split): New function.
2010-03-11 01:10:53 +00:00
Sriraman Tallam
21bb3914d6 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.
2010-02-13 02:04:21 +00:00
Doug Kwan
0d31c79dad 2010-02-02 Doug Kwan <dougkwan@google.com>
* Makefile.am (HFILES): Add arm-reloc-property.h.
	(DEFFILES): New.
 	(TARGETSOURCES): Add arm-reloc-property.cc
 	(ALL_TARGETOBJS): Add arm-reloc-property.$(OBJEXT)
	(libgold_a_SOURCES): $(DEFFILES)
	* Makefile.in: Regenerate.
	* arm-reloc-property.cc: New file.
	* arm-reloc-property.h: New file.
	* arm-reloc.def: New file.
	* arm.cc: Update comments.
	(arm-reloc-property.h): New included header.
	(arm_reloc_property_table): New global variable.
	(Target_arm::do_select_as_default_target): New method definition.
	* configure.tgt (armeb*-*-*,armbe*-*-*,arm*-*-*): Add
	arm-reloc-property to targ_extra_obj.
	* parameters.cc (set_parameters_target): Call
	Target::select_as_default_target().
	* target.h (Target::select_as_default_target): New method definition.
	(Target::do_select_as_default_target): Same.
2010-02-03 05:36:55 +00:00
Ian Lance Taylor
e291e7b9c9 PR 10287
PR 11063
	* i386.cc (class Target_i386): Change return type of plt_section
	to be non-const.
	(class Output_data_plt_i386): Add tls_desc_rel_ field.
	(Output_data_plt_i386::Output_data_plt_i386): Initialize
	tls_desc_rel_ field.
	(Output_data_plt_i386::rel_tls_desc): New function.
	(Target_i386::rel_tls_desc_section): New function.
	(Target_i386::Scan::local): Rewrite R_386_TLS_GOTDESC handling.
	(Target_i386::Scan::global): For R_386_TLS_GOTDESC put
	R_386_TLS_DESC reloc in rel_tls_desc_section.
	* x86_64.cc (class Target_x86_64): Add tlsdesc_reloc_info_ field.
	Define struct Tlsdesc_info.
	(Target_x86_64::Target_x86_64): Initialize tlsdesc_reloc_info_.
	(Target_x86_64::do_reloc_symbol_index): New function.
	(Target_x86_64::add_tlsdesc_info): New function.
	(class Output_data_plt_x86_64): Add tlsdesc_rel_ field.
	(Output_data_plt_x86_64::Output_data_plt_x86_64): Initialize
	tlsdesc_rel_ field.
	(Output_data_plt_x86_64::rela_plt): Rename from rel_plt.  Change
	all callers.
	(Output_data_plt_x86_64::rela_tlsdesc): New function.
	(Target_x86_64::rela_tlsdesc_section): New function.
	(Target_x86_64::Scan::local): Rewrite R_X86_64_GOTPC32_TLSDESC
	handling.
	(Target_x86_64::Scan::global): For R_X86_64_GOTPC32_TLSDESC put
	(Target_x86_64::do_reloc_addend): New function.
	R_X86_64_TLSDESC reloc in rela_tlsdesc_section.
	* output.h (class Output_reloc) [SHT_REL]: Add new constructor
	declarations.  Define TARGET_CODE.  Add arg field to u1_ union.
	(Output_reloc::type): New function.
	(Output_reloc::is_local_section_symbol): Check for TARGET_CODE.
	(Output_reloc::is_target_specific): New function.
	(Output_reloc::target_arg): New function.
	(class Output_reloc) [SHT_RELA]: Add four new constructors for
	absolute relocs and target specific relocs.
	(class Output_data_reloc) [SHT_REL]: Add add_absolute and
	add_target_specific.
	(class Output_data_reloc) [SHT_RELA]: Likewise.
	* output.cc (Output_reloc::Output_reloc): Add four new versions
	for absolute relocs and target specific relocs.
	(Output_reloc::set_needs_dynsym_index): Add TARGET_CODE case.
	(Output_reloc::get_symbol_index): Likewise.
	(Output_reloc::local_section_offset): Check that local_sym_index_
	is not TARGET_CODE or 0.
	(Output_reloc::symbol_value): Likewise.
	(Output_reloc::write) [SHT_RELA]: Call target for target specific
	reloc.
	* target.h (class Target): Add reloc_symbol_index and reloc_addend
	functions.  Add do_reloc_symbol_index and do_reloc_addend virtual
	functions.
	* layout.cc (add_target_dynamic_tags): Use output section for
	DT_PLTRELSZ and DT_JMPREL.
2010-01-08 19:33:18 +00:00
Doug Kwan
05a352e6a7 2009-12-05 Doug Kwan <dougkwan@google.com>
elfcpp/ChangeLog:

	* arm.h: Define enums for Tag_CPU_arch EABI attribute.

gold/ChangeLog:
	* arm.cc (Target_arm::arm_info): Initialize new fields
	attributes_section and attributes_vendor.
	* i386.cc (Target_i386::i386_info): Same.
	* object.cc (Sized_relobj::do_layout): Skip attribute section.
	* gold/powerpc.cc (Target_powerpc::powerpc_info): Initialize new
	fields attributes_section and attributes_vendor.
 	* sparc.cc (Target_sparc::sparc_info): Same.
	* target.h (Target::attributes_section, Target::attributes_vendor,
	Target::is_attributes_section, Target::attribute_arg_type,
	Target::attributes_order): New method definitions.
	(Target::Target_info::attributes_section,
	Target::Target_info::attributes_vendor): New fields.
	(Target::do_attribute_arg_type, Target::do_attributes_order): New
	virtual method definitions.
	* x86_64.cc (Target_x86_64::x86_64_info): Initialize new fields
	attributes_section and attributes_vendor.
	* testsuite/testfile.cc (Target_test::test_target_info): Same.
2009-12-06 02:49:46 +00:00
Doug Kwan
f59f41f3e6 2009-12-03 Doug Kwan <dougkwan@google.com>
* arm.cc: Remove comment about missing .ARM.exidx section symbols.
	(Target_arm::do_finalize_sections): Add parameter for symbol table
	pointer.  Add __exidx_start and __exidx_end symbols as appropriate.
	* i386.cc (Target_i386::do_finalize_sections): Add an additional
	parameter for symbol table pointer.
	* layout.cc (Layout::finalize): Call Target::finalize_sections with
	an additional parameter for a pointer to symbol table.
	* powerpc.cc (Target_powerpc::do_finalize_sections): Add an additional
	parameter for a symbol table pointer.
	* sparc.cc (Target_sparc::do_finalize_sections): Ditto.
	* target.h (Target::finalize_sections, Target::do_finalize_sections):
	Ditto.
	* x86_64.cc (Target_x86_64::do_finalize_sections): Add an additional
	parameter for a symbol table pointer.
2009-12-03 23:13:55 +00:00
Doug Kwan
d5b40221bc 2009-10-30 Doug Kwan <dougkwan@google.com>
elfcpp/ChangeLog:
	* arm.h (EF_ARM_BE8, EF_ARM_EABIMASK, EF_ARM_EABI_UNKNOWN,
	EF_ARM_EABI_VER1, EF_ARM_EABI_VER2, EF_ARM_EABI_VER3,
	EF_ARM_EABI_VER4, EF_ARM_EABI_VER5): New enums for processor-specific
	flags.
	(arm_eabi_version): New inline function.
	* elfcpp.h: Add a comment about DT_ENCODING.

gold/ChangeLog:
	* arm.cc (Arm_relobj::processor_specific_flags): New method
	definition.
	(Arm_relobj::do_read_symbols): New method declaration.
	(Arm_relobj::processor_specific_flags_): New data member declaration.
	(Arm_dynobj): New class definition.
	(Target_arm::do_finalize_sections): Add input_objects parameter.
	(Target_arm::do_adjust_elf_header): New method declaration.
	(Target_arm::are_eabi_versions_compatible,
	(Target_arm::merge_processor_specific_flags): New method declaration.
	(Target_arm::do_make_elf_object): New overloaded method definitions
	and declaration.
	(Arm_relobj::do_read_symbols): New method definition.
	(Arm_dynobj::do_read_symbols): Ditto.
	(Target_arm::do_finalize_sections): Add input_objects parameters.
	Merge processor-specific flags from all input objects.
	(Target_arm::are_eabi_versions_compatible,
	Target_arm::merge_processor_specific_flags,
	Target_arm::do_adjust_elf_header, Target_arm::do_make_elf_object):
	New method definitions.
	* i386.cc (Target_i386::do_finalize_sections): Add unnamed
	Input_objects pointer type parameter.
	* layout.cc (Layout::finalize): Pass input objects to target's.
	finalize_sections function.
	* output.cc (Output_file_header::do_sized_write): Set ELF file
	header's processor-specific flags.
	* powerpc.cc (Target_powerpc::do_finalize_sections): Add unnamed
	Input_objects pointer type parameter.
	* sparc.cc (Target_sparc::do_finalize_sections): Same.
	* target.h (Input_objects): New forward class declaration.
	(Target::processor_specific_flags,
	Target::are_processor_specific_flags_sect): New method definitions.
	(Target::finalize_sections): Add input_objects parameter.
	(Target::Target): Initialize processor_specific_flags_ and
	are_processor_specific_flags_set_.
	(Target::do_finalize_sections): Add unnamed Input_objects pointer type
	parameter.
	(Target::set_processor_specific_flags): New method definition.
	(Target::processor_specific_flags_,
	Target::are_processor_specific_flags_set_): New data member
	declarations.
	* x86_64.cc (Target_x86_64::do_finalize_sections): Add unnamed
	Input_objects pointer type parameter.
2009-10-30 18:49:59 +00:00
Ian Lance Taylor
ad0f2072a6 * object.h (class Relobj): Drop options parameter from
gc_process_relocs, scan_relocs, relocate, do_gc_process_relocs,
	do_scan_relocs, do_relocate.  Change all callers.
	(class Sized_relobj): Drop options parameters from
	do_gc_process_relocs, do_scan_relocs, do_relocate,
	do_relocate_sections, relocate_sections, emit_relocs_scan,
	emit_relocs_scan_reltype.  Change all callers.
	(struct Relocate_info): Remove options field and all references to
	it.
	* reloc.h (class Read_relocs): Remove options constructor
	parameter and options_ field.  Change all callers.
	(class Gc_process_relocs, class Scan_relocs): Likewise.
	(class Relocate_task): Likewise.
	* target-reloc.h (scan_relocs): Remove options parameter.  Change
	all callers.
	(scan_relocatable_relocs): Likewise.
	* target.h (class Sized_target): Remove options parameter from
	gc_process_relocs, scan_relocs, scan_relocatable_relocs.  Change
	all callers.
	* gc.h (gc_process_relocs): Remove options parameter.  Change all
	callers.
	* arm.cc: Update functions to remove options parameters.
	* i386.cc: Likewise.
	* powerpc.cc: Likewise.
	* sparc.cc: Likewise.
	* x86_64.cc: Likewise.
	* testsuite/testfile.cc: Likewise.
2009-10-29 05:16:23 +00:00
Doug Kwan
c0a6286595 2009-10-09 Doug Kwan <dougkwan@google.com>
* layout.cc (Layout::make_output_section): Call target hook to make
	ordinary output section.
	(Layout::finalize): Adjust parameter list of call the
	Target::may_relax().
	* layout.h (class Layout::section_list): New method.
	* merge.h (Output_merge_base::entsize): Change visibility to public.
	(Output_merge_base::is_string, Output_merge_base::do_is_string):
	New methods.
	(Output_merge_string::do_is_string): New method.
	* object.cc (Sized_relobj::do_setup): renamed from
	Sized_relobj::set_up.
	* object.h (Sized_relobj::adjust_shndx,
	Sized_relobj::initializ_input_to_output_maps,
	Sized_relobj::free_input_to_output_maps): Change visibilities to
	protected.
	(Sized_relobj::setup): Virtualize.
	(Sized_relobj::do_setup): New method declaration.
	(Sized_relobj::invalidate_section_offset,
	Sized_relobj::do_invalidate_section_offset): New method decfinitions.
	(Sized_relobj::elf_file, Sized_relobj::local_values): New methods.
	* options.cc (parse_int): New function.
	* options.h (parse_int): New declaration.
	(DEFINE_int): New macro.
	(stub_group_size): New option.
	* output.cc (Output_section::Output_section): Initialize memebers
	merge_section_map_, merge_section_by_properties_map_,
	relaxed_input_section_map_, is_relaxed_input_section_map_valid_.
	(Output_section::add_input_section): Handled deferred code-fill
	generation and remove an old comment.
	(Output_section::add_relaxed_input_section): New method definition.
	(Output_section::add_merge_input_section): Use merge section by
	properties map to speed to search.  Update merge section maps
	as appropriate.
	(Output_section::build_relaxation_map): New method definition.
	(Output_section::convert_input_sections_in_list_to_relaxed_sections):
	Same.
	(Output_section::relax_input_section): Renamed to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of pointers to relaxed sections.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section): New method definitions.
	(Output_section::is_input_address_mapped,
	Output_section::output_offset, Output_section::output_address):
	Use output section data maps to speed up searching.
	(Output_section::find_starting_output_address): Add comments.
	(Output_section::do_write,
	Output_section::write_to_postprocessing_buffer): Do code-fill
	generation as appropriate.
	(Output_section::get_input_sections): Invalidate relaxed input section
	map.
	(Output_section::restore_states): Adjust type of checkpoint .
	Invalidate relaxed input section map.
	* output.h (Output_merge_base): New class declaration.
	(Input_section_specifier): New class defintion.
	(class Output_relaxed_input_section) Change base class to
	Output_section_data_build.
	(Output_relaxed_input_section::Output_relaxed_input_section): Adjust
	base class initializer.
	(Output_section::add_relaxed_input_section): New method declaration.
	(Output_section::Input_section): Change visibility to protected.
     	(Output_section::Input_section::relobj,
	Output_section::Input_section::shndx): Handle relaxed input sections.
	Output_section::input_sections) Change visibility to protected.  Also
	define overload to return a non-const pointer.
	(Output_section::Merge_section_properties): New class defintion.
	(Output_section::Merge_section_by_properties_map,
	Output_section::Output_section_data_by_input_section_map,
	Output_section::Relaxation_map): New types.
	(Output_section::relax_input_section): Rename method to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of relaxed section pointers.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section,
	Output_section::build_relaxation_map,
	Output_section::convert_input_sections_in_list_to_relaxed_sections):
	New method declarations.
	(Output_section::merge_section_map_
	Output_section::merge_section_by_properties_map_,
	Output_section::relaxed_input_section_map_,
	Output_section::is_relaxed_input_section_map_valid_,
	Output_section::generate_code_fills_at_write_): New data members.
	* script-sections.cc
	(Output_section_element_input::set_section_addresses): Call
	current_data_size and addralign methods of relaxed input sections.
	(Orphan_output_section::set_section_addresses): Call current_data_size
	and addralign methods of relaxed input sections.
	* symtab.cc (Symbol_table::compute_final_value): Extract template
	from the body of Symbol_table::sized_finalize_symbol.
	(Symbol_table::sized_finalized_symbol): Call
	Symbol_table::compute_final_value.
	* symtab.h (Symbol_table::Compute_final_value_status): New enum type.
	(Symbol_table::compute_final_value): New templated method declaration.
	* target.cc (Target::do_make_output_section): New method defintion.
	* target.h (Target::make_output_section): New method declaration.
	(Target::relax): Add more parameters for input objects, symbol table
	and layout.  Adjust call to do_relax.
	(Target::do_make_output_section): New method declaration.
	(Target::do_relax): Add parameters for input objects, symbol table
	and layout.
2009-10-09 23:18:19 +00:00
Ian Lance Taylor
364c7fa5c9 * options.h (class General_options): Define
split_stack_adjust_size parameter.
	* object.h (class Object): Add uses_split_stack_ and
	has_no_split_stack_ fields.  Add uses_split_stack and
	has_no_split_stack accessor functions.  Declare
	handle_split_stack_section.
	(class Reloc_symbol_changes): Define.
	(class Sized_relobj): Define Function_offsets.  Declare
	split_stack_adjust, split_stack_adjust_reltype, and
	find_functions.
	* object.cc (Object::handle_split_stack_section): New function.
	(Sized_relobj::do_layout): Call handle_split_stack_section.
	* dynobj.cc (Sized_dynobj::do_layout): Call
	handle_split_stack_section.
	* reloc.cc (Sized_relobj::relocate_sections): Call
	split_stack_adjust for executable sections in split_stack
	objects.  Pass reloc_map to relocate_section.
	(Sized_relobj::split_stack_adjust): New function.
	(Sized_relobj::split_stack_adjust_reltype): New function.
	(Sized_relobj::find_functions): New function.
	* target-reloc.h: Include "object.h".
	(relocate_section): Add reloc_symbol_changes parameter.  Change
	all callers.
	* target.h (class Target): Add calls_non_split method.  Declare
	do_calls_non_split virtual method.  Declare match_view and
	set_view_to_nop.
	* target.cc: Include "elfcpp.h".
	(Target::do_calls_non_split): New function.
	(Target::match_view): New function.
	(Target::set_view_to_nop): New function.
	* gold.cc (queue_middle_tasks): Give an error if mixing
	split-stack and non-split-stack objects with -r.
	* i386.cc (Target_i386::relocate_section): Add
	reloc_symbol_changes parameter.
	(Target_i386::do_calls_non_split): New function.
	* x86_64.cc (Target_x86_64::relocate_section): Add
	reloc_symbol_changes parameter.
	(Target_x86_64::do_calls_non_split): New function.
	* arm.cc (Target_arm::relocate_section): Add reloc_symbol_changes
	parameter.
	* powerpc.cc (Target_powerpc::relocate_section): Add
	reloc_symbol_changes parameter.
	* sparc.cc (Target_sparc::relocate_section): Add
	reloc_symbol_changes parameter.
	* configure.ac: Call AM_CONDITIONAL for the default target.
	* configure: Rebuild.
	* testsuite/Makefile.am (TEST_AS): New variable.
	(check_SCRIPTS): Add split_i386.sh and split_x86_64.sh.
	(check_DATA): Add split_i386 and split_x86_64 files.
	(SPLIT_DEFSYMS): Define.
	(split_i386_[1234n].o): New targets.
	(split_i386_[124]): New targets.
	(split_i386_[1234r].stdout): New targets.
	(split_x86_64_[1234n].o): New targets.
	(split_x86_64_[124]): New targets.
	(split_x86_64_[1234r].stdout): New targets.
	(MOSTLYCLEANFILES): Add new executables.
	* testsuite/split_i386.sh: New file.
	* testsuite/split_x86_64.sh: New file.
	* testsuite/split_i386_1.s: New file.
	* testsuite/split_i386_2.s: New file.
	* testsuite/split_i386_3.s: New file.
	* testsuite/split_i386_4.s: New file.
	* testsuite/split_i386_n.s: New file.
	* testsuite/split_x86_64_1.s: New file.
	* testsuite/split_x86_64_2.s: New file.
	* testsuite/split_x86_64_3.s: New file.
	* testsuite/split_x86_64_4.s: New file.
	* testsuite/split_x86_64_n.s: New file.
	* testsuite/testfile.cc (Target_test): Update relocation_section
	function.
	* testsuite/Makefile.in: Rebuild.
2009-10-06 22:58:27 +00:00
Doug Kwan
20e6d0d602 2009-09-17 Doug Kwan <dougkwan@google.com>
* debug.h (DEBUG_RELAXATION): New constant.
	(DEBUG_ALL): Add DEBUG_RELAXATION.
	(debug_string_to_enum): Add relaxation debug option.
	* layout.cc
	(Layout::Relaxation_debug_check::check_output_data_for_reset_values,
	Layout::Relaxation_debug_check::read_sections,
	Layout::Relaxation_debug_check::read_sections): New method definitions.
	(Layout::Layout): Initialize data members
	record_output_section_data_from_scrips_,
	script_output_section_data_list_ and relaxation_debug_check_.
	(Layout::save_segments, Layout::restore_segments,
	Layout::clean_up_after_relaxation, Layout::prepare_for_relaxation,
	Layout::relaxation_loop_body): New method definitions.
	(Layout::finalize): Support relaxation.  Move section layout code to
	Layout::relaxation_loop_body.
	(Layout::set_asection_address_from_script): Move code for orphan
	section placement out.
	(Layout::place_orphan_sections_in_script): New method definition.
	* layout.h (Output_segment_headers, Output_file_header):
	New forward class declarations.
	(Layout::~Layout): Define.
	(Layout::new_output_section_data_from_script): New method definition.
	(Layout::place_orphan_sections_in_script): New method declaration.
	(Layout::Segment_states): New type declaration.
	(Layout::save_segments, Layout::restore_segments,
	Layout::clean_up_after_relaxation, Layout::prepare_for_relaxation,
	Layout::relaxation_loop_body): New method declarations.
	(Layout::Output_section_data_list): New type declaration.
	(Layout::Relaxation_debug_check): New class definition.
	(Layout::record_output_section_data_from_script_,
	Layout::script_output_section_data_list_, Layout::segment_states_,
	Layout::relaxation_debug_check_): New data members.
	* output.cc: (Output_section_headers::do_size): New method definition.
	(Output_section_headers::Output_section_headers): Move size
	computation to Output_section_headers::do_size.
	(Output_segment_headers::do_size): New method definition.
	(Output_file_header::Output_file_header): Move size computation to
	Output_file_header::do_size and call it.
	(Output_file_header::do_size): New method definition.
	(Output_data_group::Output_data_group): Adjust call to
	Output_section_data.
	(Output_data_dynamic::set_final_data_size): Add DT_NULL tag only once.
	(Output_symtab_xindex::do_write): Add array bound check.
 	(Output_section::Input_section::print_to_mapfile): Handle
	RELAXED_INPUT_SECTION_CODE.
	(Output_section::Output_section): Initialize data member checkpoint_.
	(Output_section::~Output_section): Delete checkpoint object pointed
	by checkpoint_.
	(Output_section::add_input_section): Always add an Input_section if
	relaxing.
	(Output_section::add_merge_input_section): Add assert.
	(Output_section::relax_input_section): New method definition.
	(Output_section::set_final_data_size): Set load address to zero for
	an unallocated section.
	(Output_section::do_address_and_file_offset_have_reset_values):
	New method definition.
	(Output_section::Input_section_sort_enty::Input_section_sort_enty):
	Handle relaxed input section.
	(Output_section::sort_attached_input_sections): Checkpoint input
	section list lazily.
	(Output_section::get_input_sections): Change type of input_sections to
	list of Simple_input_section pointers.  Checkpoint input section list
	lazily.  Also handle relaxed input sections.
	(Output_section::add_input_section_for_script): Take a reference to
	a Simple_input_section object instead of Relobj pointer and section
	index as parameter.  Handle relaxed input sections.
	(Output_section::save_states, Output_section::restore_states): New
	method definitions.
	* output.h (Output_data::Output_data): Initialize is_data_size_fixed_.
	(Output_data::is_data_size_fixed): New method definition.
	(Output_data::reset_addresss_and_file_offset): Do not reset data size
	if it is fixed.
	(Output_data::address_and_file_offset_have_reset_values): New method
	definition.
	(Output_data::do_address_and_file_offset_have_reset_values): New method
	definition.
	(Output_data::set_data_size): Check that data size is not fixed.
	(Output_data::fix_data_size): New method definition.
	(Output_data::is_data_size_fixed_): New data member.
	(Output_section_headers::set_final_data_size): New method definition.
	(Output_section_headers::do_size): New method declaration.
	(Output_segment_headers::set_final_data_size): New method definition.
	(Output_segment_headers::do_size): New method declaration.
	(Output_file_header::set_final_data_size)::New method definition.
	(Output_file_header::do_size)::New method declaration.
	(Output_section_data::Output_section_data): Add new parameter
	is_data_size_fixed and use it to fix data size.
	(Output_data_const::Output_data_const): Adjust call to base class
	constructor and fix data size.
	(Output_data_const_buffer::Output_data_const_buffer): Adjust call to
	base class constructor and fix data size.
	(Output_data_fixed_space::Output_data_fixed_space): Adjust call to
	base class constructor and fix data size.
	(Output_data_zero_fill::Output_data_zero_fill): Adjust call to base
	class constructor and fix data size.
	(Output_data_group::set_final_data_size): New method definition.
	(Output_data_dynamic::Dynamic_entry::tag): New method definition.
	(Output_symtab_xindex::Output_symtab_xindex): Adjust call to base
	class constructor and fix data size.
	(Output_relaxed_input_section): New class definition.
	(Output_section::Simple_input_section): New class definition.
	(Output_section::get_input_sections): Adjust parameter list.
	(Output_section::add_input_section_for_script): Same.
	(Output_section::save_states, Output_section::restore_states,
	Output_section::do_address_and_file_offset_have_reset_values,
	(Output_section::Input_section::Input_section): Handle
	RELAXED_INPUT_SECTION_CODE.  Add new overload for
	Output_relaxed_input_section.
	(Output_section::Input_section::is_input_section,
	Output_section::Input_section::set_output_section): Handle relaxed
	input section.
	(Output_section::Input_section::is_relaxed_input_section,
	Output_section::Input_section::output_section_data,
	Output_section::Input_section::relaxed_input_section): New method
	definitions.
	(Output_section::Input_section::RELAXED_INPUT_SECTION_CODE): New enum
	value.
	(Output_section::Input_section::u1_): Update comments.
	(Output_section::Input_section::u2_): Add new union member poris.
	(Output_section::Checkpoint_output_section): New classs definition.
	(Output_section::relax_input_section): New method declaration.
	(Output_section::checkpoint_): New data member.
	(Output_segment): Update comments.
	(Output_segment::Output_segment): Un-privatize copy constructor.
	(Output_segment::operator=): Un-privatize.
	* script-sections.cc (Output_section_element::Input_section_list):
	Change element type to Output_section::Simple_input_section.
	(Output_section_element_dot_assignment::set_section_addresses):
	Register output section data for relaxation clean up.
	(Output_data_exression::Output_data_expression): Adjust call to base
	constructor to fix data size.
	(Output_section_element_data::set_section_addresses): Register
	Output_data_expression object for relaxation clean up.
	(struct Input_section_info): Replace Relobj pointer and section index
	pair with Output_section::Simple_input_section and Convert struct to a
	class.
	(Input_section_sorter::operator()): Adjust access to
	Input_section_info data member to use accessors.
	(Output_section_element_input::set_section_addresses): Use layout
	parameter.  Adjust code to use Output_section::Simple_input_section
	and Input_secction_info classes.  Register filler for relaxation
	clean up.
	(Orphan_output_section::set_section_addresses): Replace Relobj pointer
	and section index pair with Output_section::Simple_input_section
	class.  Adjust code accordingly.
	(Phdrs_element::release_segment): New method definition.
	(Script_sections::attach_sections_using_phdrs_clause): Do not modify
	segment list.
	(Script_sections::release_segments): New method definition.
	* gold/script-sections.h (Script_sections::release_segments): New
	method declaration.
	* gold/target.h (Target::may_relax, Target::relax,
	Target::do_may_relax, Target::do_relax): New method definitions.
2009-09-18 01:10:38 +00:00