Commit Graph

257 Commits

Author SHA1 Message Date
Roland McGrath eb426534c3 gold/
* output.cc (Output_segment::set_section_addresses): Take new
	Target* argument.  If target->isolate_execinstr() and the segment
	is executable and starts at a target->abi_pagesize() boundary,
	pad its end out to a target->abi_pagesize() boundary with code fill.
	* output.h (Output_segment::set_section_addresses): Update decl.
	* layout.h (Layout::check_output_data_for_reset_values): Take new
	argument RELAX_OUTPUTS.
	(Layout): New member relax_output_list_.
	(Layout::add_relax_output): New method.
	* layout.cc (Layout::Layout): Update constructor.
	(Layout::reset_relax_output): New method.
	(Layout::clean_up_after_relaxation): Call it.
	(Layout::prepare_for_relaxation): Update caller.
	(Layout::set_segment_offsets): Update callers of set_section_addresses.
	Call reset_relax_output before re-processing segments for
	isolate_execinstr case.
	(Layout::write_data): Handle relax_output_list_.
	(Layout::Relaxation_debug_check::check_output_data_for_reset_values):
	Take new argument RELAX_OUTPUTS.  Assert it's an empty collection.
2013-08-27 21:49:48 +00:00
Roland McGrath a3ed37d8bc gold/
* options.h (General_options): Add -Trodata-segment option.
	* parameters.cc (Parameters::check_rodata_segment): New function.
	(Parameters::set_target_once): Call it.
	* parameters.h (Parameters): Declare it (private member function).
	* layout.cc (load_seg_unusable_for_headers): New function, broken
	out of Layout::relaxation_loop_body.  If TARGET->isolate_execinstr()
	then validate rodata segment rather than text segment.
	(relaxation_loop_body): Call that.
	(is_text_segment): New function.  Don't admit a non-executable
	segment if TARGET->isolate_execinstr().
	(set_segment_offsets): Call it.  Honor -Trodata-segment option.
2013-07-19 23:07:08 +00:00
Cary Coutant 7fb47cc9a4 2013-06-05 Alexander Ivchenko <alexander.ivchenko@intel.com>
gold/
	* layout.cc (Layout::set_segment_offsets): Taking care of the case when
	the maximum segment alignment is larger than the page size.
	* testsuite/Makefile.am (large_symbol_alignment): Test that Gold
	correctly aligns the symbols with large alignemnt.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/large_symbol_alignment.cc: New file.
2013-06-05 23:52:21 +00:00
Cary Coutant 6934001a98 2013-05-30 Alexander Ivchenko <alexander.ivchenko@intel.com>
Sriraman Tallam  <tmsriram@google.com>

	* options.h (sort_section): New option.
	* output.h (Input_section_sort_section_prefix_special_ordering_compare):
	Rename from Input_section_sort_section_name_special_ordering_compare.
	(Input_section_sort_section_name_compare): New struct.
	* output.cc (Output_section::Input_section_sort_section_name_compare::
	operator()): New function.
	(Output_section::sort_attached_input_sections): Use new sort function
	for .text if --sort-section=name is specified.
	* layout.cc (Layout::make_output_section):
	Add sorting by name when --sort-section=name is specified.
	* testsuite/Makefile.am (text_section_grouping): Test option
	--sort-section=name.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/section_sorting_name.cc: New file.
	* testsuite/section_sorting_name.sh: New file.
2013-05-30 23:01:11 +00:00
Roland McGrath bbc5ae17c4 gold/
* options.h (General_options): Add --rosegment-gap option.
	* options.cc (finalize): --rosegment-gap implies --rosegment.
	* layout.cc (set_segment_offsets): Let user option override
	target->rosegment_gap().
2013-05-10 22:33:35 +00:00
Maciej W. Rozycki cde7cb0129 gold/
PR ld/15365
        * layout.cc (Layout::finalize): Make __ehdr_start STV_HIDDEN.

        ld/
        PR ld/15365
        * emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation):
        Restrict __ehdr_start's export class to no less than STV_HIDDEN.

        ld/testsuite/
        PR ld/15365
        * ld-elf/ehdr_start.d: Expect __ehdr_start to be STB_LOCAL.
        * ld-mips-elf/ehdr_start-1.nd: New test.
        * ld-mips-elf/ehdr_start-2.nd: New test.
        * ld-mips-elf/ehdr_start-1.ld: New test linker script.
        * ld-mips-elf/ehdr_start-2.ld: New test linker script.
        * ld-mips-elf/ehdr_start-new.s: New test source.
        * ld-mips-elf/ehdr_start-o32.s: New test source.
        * ld-mips-elf/mips-elf.exp: Run the new tests.
2013-05-03 15:19:27 +00:00
Cary Coutant e7c5ea405f 2013-04-26 Geoff Pike <gpike@chromium.org>
gold/
	* gold.cc (queue_final_tasks): invoke layout->queue_build_id_tasks().
	* layout.cc (Hash_task): New class.
	(Layout::queue_build_id_tasks): New function.
	(Layout::write_build_id): Handle single-thread portion of build ID
	computation.  (In some cases, all of it is single-threaded.)  Replace
	{sha1,md5}_process_bytes with {sha1,md5}_buffer to get the same
	functionality in fewer lines of code.
	* layout.h (Layout::queue_build_id_tasks): New function declaration.
	* options.h (General_options): make "--build-id" default to tree
	rather than sha1.  Add two new options related to --build-id=tree:
	--build-id-chunk-size-for-treehash and
	--build-id-min-file-size-for-treehash.
	* Makefile.am: add testing of --build-id=tree and related new options
	(these tests will be invoked by "make check").
	* Makefile.in: Regenerate.
2013-04-26 21:38:57 +00:00
Alan Modra a40347502e PR gold/15355
* layout.cc (Layout::segment_precedes): Allow more than one
	segment with the same type and flags.
2013-04-21 23:21:56 +00:00
Cary Coutant e79c84aa33 gold/
* layout.cc (Layout::set_relocatable_section_offsets): Don't
	allocate space in file for BSS sections.
2013-04-15 16:40:59 +00:00
Alan Modra ebacd51e16 * layout.cc (Layout::set_segment_offsets): Accept writable .text
segment when omagic.
2013-03-21 04:52:55 +00:00
Alan Modra 117be58fad * dwp.cc (Dwp_output_file::add_contribution): Avoid signed/unsigned
comparison warning.
	* layout.cc (Layout::create_dynamic_symtab): Avoid "may be used
	uninitialized" warning.
2013-03-21 02:00:16 +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
Sriraman Tallam c6ac678db5 Default text reordering fix with a flag to turn it off.
2013-01-24  Sriraman Tallam  <tmsriram@google.com>

	* layout.cc (Layout::layout): Check for option text_reorder.
	(Layout::make_output_section): Ditto.
	* options.h (text_reorder): New option.
	* output.cc (Input_section_sort_compare): Remove special ordering
	of section names.
	(Output_section::
	 Input_section_sort_section_name_special_ordering_compare::
	 operator()): New function.
	(Output_section::sort_attached_input_sections): Use new sort function
	for .text.
	* output.h (Input_section_sort_section_name_special_ordering_compare):
	New struct.
	* testsuite/Makefile.am (text_section_grouping): Test option
	--no-text-reorder
	* testsuite/Makefile.in: Regenerate.
	* testsuite/text_section_grouping.sh: Check order of functions without
	default text reordering.
2013-01-24 18:49:55 +00:00
Mike Frysinger b1b00fcc61 ld: change --enable-new-dtags to only generate new dtags
The "new" dtags options have been around for 14+ years, so there
shouldn't be a need to generate both new & old tags anymore.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-01-18 17:43:58 +00:00
Sriraman Tallam 7c381248b3 2013-01-16 Sriraman Tallam <tmsriram@google.com>
* layout.cc (Layout::layout): Do not do default sorting for
	text sections when section ordering is specified.
	(make_output_section): Ditto.
	* testsuite/plugin_final_layout.cc: Name the function sections
	to catch reordering issues.
2013-01-16 22:47:14 +00:00
Ian Lance Taylor edcac0c105 * layout.cc (Layout::special_ordering_of_input_section): New
function.
	(Layout::layout): If input section requires special ordering, must
	sort input sections.
	(Layout::make_output_section): May sort .text input sections.
	(Layout::is_section_name_prefix_grouped): Remove.
	* layout.h (class Layout): Declare
	special_ordering_of_input_section.  Don't declare
	is_section_name_prefix_grouped.
	* output.cc (Output_section::add_input_section): Revert last
	change.
	(Output_section::Input_section_sort::match_file_name): Don't crash
	if called on output section data.
	(Output_section::Input_section_sort_compare): Sort based on
	special ordering.
	(Output_section::Input_section_sort_section_order_index_compare):
	Revert last patch.
	(Output_section::sort_attached_input_sections): Likewise.
2012-12-21 06:24:31 +00:00
Sriraman Tallam 28f2a4ac6f Group text sections with prefixes .text.unlikely,.text.hot and .text.startup
by default.


2012-12-18  Sriraman Tallam  <tmsriram@google.com>

	* layout.cc (Layout::is_section_name_prefix_grouped): New function.
	* layout.h (Layout::is_section_name_prefix_grouped): New function.
	* output.cc (Output_section::add_input_section): Check if section
	name contains special prefix.  Keep input sections to sort such
	sections.
	(Output_section::Input_section_sort_section_order_index_compare
	 ::operator()): Group sections according to prefixes.
	* (Output_section::sort_attached_input_sections): Add condition
	to Input_section_entry constructor call.
	* testsuite/Makefile.am (text_section_grouping): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/text_section_grouping.cc: New file.
	* testsuite/text_section_grouping.sh: New file.
2012-12-19 02:55:15 +00:00
Alan Modra ec661b9dca * layout.h (Layout::get_executable_sections): Declare.
* layout.cc (Layout::get_executable_sections): New function.
	* arm.cc (Target_arm::group_sections): Use it.
	(Arm_output_section::group_sections): Delete now redundant test.
	* output.cc (Output_reloc::Output_reloc): Add is_relative.
	param to handle relative relocs.
	* output.h (Output_reloc::Output_reloc <absolute reloc>): Likewise.
	(Output_data_reloc::add_absolute): Adjust.
	(Output_data_reloc::add_relative): New function.
	(Output_data::reset_data_size): New function.
	(Output_relaxed_input_section::set_relobj, set_shndx): New functions.
	(Output_section::set_addralign): New function.
	(Output_section::checkpoint_set_addralign): New function.
	(Output_section::clear_section_offsets_need_adjustment): New function.
	(Output_section::input_sections): Make public.
	* powerpc.cc (class Output_data_brlt_powerpc): New.
	(class Stub_table, class Stub_control): New.
	(Powerpc_relobj::has14_, set_has_14bit_branch, has_14bit_branch,
	stub_table_, set_stub_table, stub_table): New vectors and accessor
	functions.
	(Target_powerpc::do_may_relax, do_relax, push_branch,
	new_stub_table, stub_tables, brlt_section, group_sections,
	add_branch_lookup_table, find_branch_lookup_table,
	write_branch_lookup_table, make_brlt_section): New functions.
	(Target_powerpc::struct Sort_sections, class Branch_info): New.
	(Target_powerpc::brlt_section_, stub_tables_, branch_lookup_table_,
	branch_info_): New vars.
	(Target_powerpc::make_plt_entry, make_local_ifunc_plt_entry): Don't
	make call stubs here.
	(Output_data_glink): Remove all call stub handling from this class.
	(Target_powerpc::Scan::local, global): Save interesting branch
	relocs and relocs for ifunc.  Adjust calls to plt entry functions.
	(Target_powerpc::do_finalize_sections): Only make reg save/restore
	functions on final link.
	(Target_powerpc::Relocate::relocate): Adjust lookup of call stubs.
	Handle long branch destinations too.
	(Target_powerpc::do_dynsym_value, do_plt_address_for_global,
	do_plt_address_for_local): Adjust lookup of plt call stubs.
2012-12-03 05:30:59 +00:00
Sriraman Tallam ae034989da 2012-10-16 Sriraman Tallam <tmsriram@google.com>
* layout.cc (Layout::include_section): Keep sections marked
	SHF_EXCLUDE when doing relocatable links.
2012-10-16 16:50:32 +00:00
Alan Modra 815a120572 PR gold/14566
* layout.cc (Layout::set_segment_offsets): When using
	common-page-size alignment, ensure we are on a new max-page-size
	page.
	* output.cc (Output_segment::set_section_addresses): Use
	abi_pagesize, not common_pagesize for relro boundary.
	(Output_segment::set_offset): Likewise.
2012-09-10 23:10:41 +00:00
Alan Modra a1373b60b3 * layout.cc (Layout::set_segment_offsets): Set p_align to
abi_pagesize, not common_pagesize.
	(Layout::relaxation_loop_body): Similarly use abi_pagesize
	to determine whether file header can go in segment.
2012-08-30 05:57:05 +00:00
Sriraman Tallam 16164a6b00 Patch adds support to allow plugins to map selected subset of sections to unique
segments.


2012-08-24  Sriraman Tallam  <tmsriram@google.com>

	* gold.cc (queue_middle_tasks): Call layout again when unique
	segments for sections is desired.
	* layout.cc (Layout::Layout): Initialize new members.
	(Layout::get_output_section_flags): New function.
	(Layout::choose_output_section): Call get_output_section_flags.
	(Layout::layout): Make output section for mapping to a unique segment.
	(Layout::insert_section_segment_map): New function.
	(Layout::attach_allocated_section_to_segment): Make unique segment for
	output sections marked so.
	(Layout::segment_precedes): Check for unique segments when sorting.
	* layout.h (Layout::Unique_segment_info): New struct.
	(Layout::Section_segment_map): New typedef.
	(Layout::insert_section_segment_map): New function.
	(Layout::get_output_section_flags): New function.
	(Layout::is_unique_segment_for_sections_specified): New function.
	(Layout::set_unique_segment_for_sections_specified): New function.
	(Layout::unique_segment_for_sections_specified_): New member.
	(Layout::section_segment_map_): New member.
	* object.cc (Sized_relobj_file<size, big_endian>::do_layout):
	Rename is_gc_pass_one to is_pass_one.
	Rename is_gc_pass_two to is_pass_two.
	Rename is_gc_or_icf to is_two_pass.
	Check for which pass based on whether symbols data is present.
	Make it two pass when unique segments for sections is desired.
	* output.cc (Output_section::Output_section): Initialize new
	members.
	* output.h (Output_section::is_unique_segment): New function.
	(Output_section::set_is_unique_segment): New function.
	(Output_section::is_unique_segment_): New member.
	(Output_section::extra_segment_flags): New function.
	(Output_section::set_extra_segment_flags): New function.
	(Output_section::extra_segment_flags_): New member.
	(Output_section::segment_alignment): New function.
	(Output_section::set_segment_alignment): New function.
	(Output_section::segment_alignment_): New member.
	(Output_segment::Output_segment): Initialize is_unique_segment_.
	(Output_segment::is_unique_segment): New function.
	(Output_segment::set_is_unique_segment): New function.
	(Output_segment::is_unique_segment_): New member.
	* plugin.cc (allow_unique_segment_for_sections): New function.
	(unique_segment_for_sections): New function.
	(Plugin::load): Add new functions to transfer vector.
	* Makefile.am (plugin_final_layout.readelf.stdout): Add readelf output.
	* Makefile.in: Regenerate.
	* testsuite/plugin_final_layout.sh: Check if unique segment
	functionality works.
	* testsuite/plugin_section_order.c (onload): Check if new interfaces
	are available.
	(allow_unique_segment_for_sections): New global.
	(unique_segment_for_sections): New global.
	(claim_file_hook): Call allow_unique_segment_for_sections.
	(all_symbols_read_hook): Call unique_segment_for_sections.


2012-08-24  Sriraman Tallam  <tmsriram@google.com>

	* plugin-api.h (ld_plugin_allow_unique_segment_for_sections):
	New interface.
	(ld_plugin_unique_segment_for_sections): New interface.
	(LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val.
	(LDPT_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val.
	(tv_allow_unique_segment_for_sections): New member.
	(tv_unique_segment_for_sections): New member.
2012-08-24 18:35:35 +00:00
Cary Coutant 1e2bee4f5f 2012-08-22 Cary Coutant <ccoutant@google.com>
gold/
	* layout.cc (Layout::include_section): Don't assert on GROUP
	sections with --emit-relocs.
2012-08-22 18:26:32 +00:00
Nick Clifton b9b2ae8bbf PR ld/14265
* script-sections.cc (Sections_element::output_section_name): Add
	keep return parameter.
	(Output_section_element::match_name): Add keep return parameter.
	Return the value of the keep_ member.
	* script-sections.h (class Output_section): Update
	output_section_name prototype.
	* layout.cc (Layout::keep_input_section): New public member
	function.
	(Layout::choose_output_section): Pass keep parameter to
	output_section_name.
	* layout.h (class Layout): Add keep_input_section.
	* object.cc (Sized_relobj_file::do_layout): Check for kept input
	sections.
	* testsuite/Makefile.am: Add a test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/pr14265.c: Source file for the test.
	* testsuite/pr14265.t: Linker script for the test.
	* testsuite/pr14265.sh: Shell script for the test.

	* ld-gc/gc.exp: Add a new test.
	* ld-gc/pr14265.c: Source file for the new test.
	* ld-gc/pr14265.t: Linker script for the new test.
	* ld-gc/pr14265.d: Expected symbol dump.
2012-08-14 08:31:57 +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
Ian Lance Taylor 82435b3b3d * layout.cc (Layout::add_target_dynamic_tags): If
dynrel_includes_plt but no dyn_rel, emit dynamic reloc tags for
	plt_rel.
2012-08-07 13:24:47 +00:00
Roland McGrath eabc84f484 gold/
* layout.cc (finalize): Define __ehdr_start symbol if applicable.
2012-06-22 18:02:24 +00:00
Cary Coutant fb1b895daa gold/
* layout.cc (gdb_sections): Remove ".debug_" prefixes,
	add .debug_macro.
	(lines_only_debug_sections): Likewise.
	(gdb_fast_lookup_sections): New static array.
	(is_gdb_debug_section): Rename formal parameter.
	(is_lines_only_debug_section): Likewise.
	(is_gdb_fast_lookup_section): New function.
	(Layout::include_section): Check for ".zdebug_" prefix; pass
	section name suffix to is_gdb_debug_section, et al.; check for
	fast-lookup sections when building .gdb_index.
	* options.h (--strip-debug-gdb): Update GDB version number.
2012-06-07 05:14:44 +00:00
Cary Coutant 1be75daacf gold/
* layout.cc (Layout::section_name_mapping): Add rules to handle
	exact match on .data.rel.ro.local or .data.rel.ro.
	(Layout::output_section_name): Check for exact matches.
2012-05-24 01:02:15 +00:00
Cary Coutant 9b689de015 gold/
* layout.cc (Layout::section_name_mapping): Match .data.rel.ro.*
	more carefully.
2012-05-23 20:54:37 +00:00
Cary Coutant 1007b5031a gold/
* layout.cc (Layout::make_output_section): Mark .tdata section
	as RELRO.
	* testsuite/relro_test.cc: Add a TLS variable.
2012-05-14 17:35:43 +00:00
Cary Coutant 80f5885c06 gold/
* layout.cc (gdb_sections): Update GDB version, add .debug_addr.
	(lines_only_debug_sections): Likewise.
2012-05-08 18:00:02 +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
Cary Coutant c1027032c2 2012-03-21 Cary Coutant <ccoutant@google.com>
* Makefile.am: Add gdb-index.cc, gdb-index.h.
	* Makefile.in: Regenerate.
	* dwarf_reader.cc (Sized_elf_reloc_mapper::do_initialize): New function.
	(Sized_elf_reloc_mapper::symbol_section): New function.
	(Sized_elf_reloc_mapper::do_get_reloc_target): New function.
	(make_elf_reloc_mapper): New function.
	(Dwarf_abbrev_table::clear_abbrev_codes): New function.
	(Dwarf_abbrev_table::do_read_abbrevs): New function.
	(Dwarf_abbrev_table::do_get_abbrev): New function.
	(Dwarf_ranges_table::read_ranges_table): New function.
	(Dwarf_ranges_table::read_range_list): New function.
	(Dwarf_pubnames_table::read_section): New function.
	(Dwarf_pubnames_table::read_header): New function.
	(Dwarf_pubnames_table::next_name): New function.
	(Dwarf_die::Dwarf_die): New function.
	(Dwarf_die::read_attributes): New function.
	(Dwarf_die::skip_attributes): New function.
	(Dwarf_die::set_name): New function.
	(Dwarf_die::set_linkage_name): New function.
	(Dwarf_die::attribute): New function.
	(Dwarf_die::string_attribute): New function.
	(Dwarf_die::int_attribute): New function.
	(Dwarf_die::uint_attribute): New function.
	(Dwarf_die::ref_attribute): New function.
	(Dwarf_die::child_offset): New function.
	(Dwarf_die::sibling_offset): New function.
	(Dwarf_info_reader::check_buffer): New function.
	(Dwarf_info_reader::parse): New function.
	(Dwarf_info_reader::do_parse): New function.
	(Dwarf_info_reader::do_read_string_table): New function.
	(Dwarf_info_reader::lookup_reloc): New function.
	(Dwarf_info_reader::get_string): New function.
	(Dwarf_info_reader::visit_compilation_unit): New function.
	(Dwarf_info_reader::visit_type_unit): New function.
	(Sized_dwarf_line_info::Sized_dwarf_line_info): Use
	Sized_elf_reloc_mapper.
	(Sized_dwarf_line_info::symbol_section): Remove function.
	(Sized_dwarf_line_info::read_relocs): Use Sized_elf_reloc_mapper.
	(Sized_dwarf_line_info::read_line_mappings): Remove object
	parameter, adjust callers.
	(Sized_dwarf_line_info::format_file_lineno): Fix type of cast.
	* dwarf_reader.h: Include <sys/types.h>.
	(class Track_relocs): Remove forward declaration.
	(class Elf_reloc_mapper): New class.
	(class Sized_elf_reloc_mapper): New class.
	(class Dwarf_abbrev_table): New class.
	(class Dwarf_range_list): New class.
	(class Dwarf_ranges_table): New class.
	(class Dwarf_pubnames_table): New class.
	(class Dwarf_die): New class.
	(class Dwarf_info_reader): New class.
	(Sized_dwarf_line_info::read_line_mappings): Remove object parameter.
	(Sized_dwarf_line_info::symbol_section): Remove member function.
	* dynobj.h (Sized_dynobj::do_section_contents): Refactor code from
	base class.
	* gdb-index.cc: New source file.
	* gdb-index.h: New source file.
	* incremental.cc (Sized_relobj_incr::do_layout): Track .debug_info
	and .debug_types sections, call Layout::add_to_gdb_index.
	(Sized_relobj_incr::do_section_name): Implement.
	(Sized_relobj_incr::do_section_contents): Adjust parameter list and
	return type; Implement.
	(Sized_incr_dynobj::do_section_contents): Adjust parameter list and
	return type.
	* incremental.h (Sized_relobj_incr::do_section_contents): Adjust
	parameter list and return type.
	(Sized_incr_dynobj::do_section_contents): Likewise.
	* layout.cc: Include gdb-index.h.
	(Layout::Layout): Initialize gdb_index_data_.
	(Layout::init_fixed_output_section): Check for .gdb_index section.
	(Layout::add_to_gdb_index): New function. Instantiate.
	* layout.h: Add forward declaration for class Gdb_index.
	(Layout::add_to_gdb_index): New member function.
	(Layout::gdb_index_data_): New data member.
	* main.cc: Include gdb-index.h.
	(main): Print statistics for gdb index.
	* object.cc (Object::section_contents): Move code into
	do_section_contents.
	(need_decompressed_section): Check for sections needed when building
	gdb index.
	(build_compressed_section_map): Likewise.
	(Sized_relobj_file::do_read_symbols): Need local symbols when building
	gdb index.
	(Sized_relobj_file::do_layout): Track .debug_info and .debug_types
	sections; call Layout::add_to_gdb_index.
	(Sized_relobj_file::do_decompressed_section_contents): Call
	do_section_contents directly.
	* object.h (Object::do_section_contents): Adjust parameter list and
	return type.
	(Object::do_decompressed_section_contents): Call do_section_contents
	directly.
	(Sized_relobj_file::do_section_contents): Adjust parameter list and
	return type.
	* options.h (class General_options): Add --gdb-index option.
	* plugin.cc (Sized_pluginobj::do_section_contents): Adjust parameter
	list and return type.
	* plugin.h (Sized_pluginobj::do_section_contents): Likewise.
	* reloc.h (Track_relocs::checkpoint): New function.
	(Track_relocs::reset): New function.

	* testsuite/Makefile.am (gdb_index_test_1.sh, gdb_index_test_2.sh):
	New test cases.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/gdb_index_test.cc: New test source file.
	* testsuite/gdb_index_test_1.sh: New test source file.
	* testsuite/gdb_index_test_2.sh: New test source file.
2012-03-21 19:02:22 +00:00
Ian Lance Taylor 14dc9ef7d1 PR gold/13850
* layout.cc (Layout::make_output_section): Correctly mark
	SHT_INIT_ARRAY, et. al., as relro.
2012-03-15 16:32:22 +00:00
Ian Lance Taylor ea0d8c4740 PR gold/13204
* layout.cc (Layout::segment_precedes): Don't assert failure if a
	--section-start option was seen.
	* options.h (General_options::any_section_start): New function.
2011-10-19 15:05:58 +00:00
Sriraman Tallam f0558624db 2011-09-29 Sriraman Tallam <tmsriram@google.com>
* layout.h (section_order_map_): New member.
	(get_section_order_map): New member function.
	* output.cc (Output_section::add_input_section): Check for patterns
	only when --section-ordering-file is specified.
	* gold.cc (queue_middle_tasks): Delay updating order of sections till
	output_sections have been formed.
	* layout.cc (Layout_Layout): Initialize section_order_map_.
	* plugin.cc (update_section_order): Store order in order_map. Do not
	update the order.
	* testsuite/Makefile.am: Add test case for plugin_final_layout.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_section_order.c: New file.
	* testsuite/plugin_final_layout.cc: New file.
	* testsuite/plugin_final_layout.sh: New file.
2011-09-29 23:45:57 +00:00
Cary Coutant aa06ae28f1 * incremental.cc (can_incremental_update): New function.
* incremental.h (can_incremental_update): New function.
	* layout.cc (Layout::init_fixed_output_section): Call it.
	(Layout::make_output_section): Don't allow patch space in .eh_frame.
	* object.cc (Sized_relobj_file::do_layout): Call
	can_incremental_update.
2011-09-18 15:06:28 +00:00
Cary Coutant 8ea8cd50dd * layout.cc (Free_list::allocate): Provide guarantee of minimum
remaining hole size when allocating.
	(Layout::make_output_section): Set fill methods for debug sections.
	* layout.h (Free_list::Free_list_node): Move from private to
	public.
	(Free_list::set_min_hole_size): New function.
	(Free_list::begin, Free_list::end): New functions.
	(Free_list::min_hole_): New data member.
	* output.cc: Include dwarf.h.
	(Output_fill_debug_info::do_minimum_hole_size): New function.
	(Output_fill_debug_info::do_write): New function.
	(Output_fill_debug_line::do_minimum_hole_size): New function.
	(Output_fill_debug_line::do_write): New function.
	(Output_section::Output_section): Initialize new data member.
	(Output_section::set_final_data_size): Ensure patch space is larger
	than minimum hole size.
	(Output_section::do_write): Fill holes in debug sections.
	* output.h (Output_fill): New class.
	(Output_fill_debug_info): New class.
	(Output_fill_debug_line): New class.
	(Output_section::set_free_space_fill): New function.
	(Output_section::free_space_fill_): New data member.
	* testsuite/Makefile.am (incremental_test_3): Add
	--incremental-patch option.
	(incremental_test_4): Likewise.
	(incremental_test_5): Likewise.
	(incremental_test_6): Likewise.
	(incremental_copy_test): Likewise.
	(incremental_common_test_1): Likewise.
	* testsuite/Makefile.in: Regenerate.
2011-08-27 01:28:18 +00:00
Cary Coutant 9590bf2544 * layout.cc (Layout::set_segment_offsets): Don't realign text
segment if -Ttext was specified.
	* object.cc (Sized_relobj_file::Sized_relobj_file): Store the ELF
	file type.
	* object.h (Sized_relobj_file::e_type): New function.
	(Sized_relobj_file::e_type_): New data member.
	* symtab.cc (Symbol_table::add_from_relobj): Don't add section
	base address for ET_EXEC files.
	* target.cc (Target::do_make_elf_object_implementation): Allow
	ET_EXEC files with --just-symbols option.
2011-08-01 18:25:22 +00:00
Ian Lance Taylor d12a5ea8c9 * layout.cc (Layout::relaxation_loop_body): Only clear load_seg if
the -Ttext option is not 0 modulo the page size.  If we clear
	load_seg, clear phdr_seg too.
	* testsuite/Makefile.am (check_PROGRAMS): Add flagstest_o_ttext_1.
	(flagstest_o_ttext_1): New target.
	(check_DATA): Add flagstest_o_ttext_2.
	(flagstest_o_ttext_2): New target.
	* testsuite/Makefile.in: Rebuild.
2011-07-25 22:48:42 +00:00
Sriraman Tallam e9552f7ebb 2011-07-13 Sriraman Tallam <tmsriram@google.com>
* plugin-api.h
	(ld_plugin_section): New struct.
	(ld_plugin_get_section_count): New typedef.
	(ld_plugin_get_section_type): New typedef.
	(ld_plugin_get_section_name): New typedef.
	(ld_plugin_get_section_contents): New typedef.
	(ld_plugin_update_section_order): New typedef.
	(ld_plugin_allow_section_ordering): New typedef.
	(LDPT_GET_SECTION_COUNT): New enum value.
	(LDPT_GET_SECTION_TYPE): New enum value.
	(LDPT_GET_SECTION_NAME): New enum value.
	(LDPT_GET_SECTION_CONTENTS): New enum value.
	(LDPT_UPDATE_SECTION_ORDER): New enum value.
	(LDPT_ALLOW_SECTION_ORDERING): New enum value.
	(tv_get_section_count): New struct members.
	(tv_get_section_type): New struct members.
	(tv_get_section_name): New struct members.
	(tv_get_section_contents): New struct members.
	(tv_update_section_order): New struct members.
	(tv_allow_section_ordering): New struct members.
	* archive.cc (Archive::get_elf_object_for_member): Add extra parameter
	to claim_file call.
	* layout.cc (Layout::Layout): Initialize section_ordering_specified_,
	input_section_position_, and input_section_glob_.
	(read_layout_from_file): Call function section_ordering_specified.
	* layout.h (is_section_ordering_specified): New function.
	(section_ordering_specified): New function.
	(section_ordering_specified_): New boolean member.
	* main.cc(main): Call load_plugins after layout object is defined.
	* output.cc (Output_section::add_input_section): Use
	function section_ordering_specified to check if section ordering is
	needed.
	* output.cc (Output_section::add_relaxed_input_section): Use
	function section_ordering_specified to check if section ordering is
	needed.
	(Output_section::update_section_layout): New function.
	(Output_section::sort_attached_input_sections): Check if input section
	must be reordered.
	* output.h (Output_section::update_section_layout): New function.
	* plugin.cc (get_section_count): New function.
	(get_section_type): New function.
	(get_section_name): New function.
	(get_section_contents): New function.
	(update_section_order): New function.
	(allow_section_ordering): New function.
	(Plugin::load): Add the new interfaces to the transfer vector.
	(Plugin_manager::load_plugins): New parameter.
	(Plugin_manager::all_symbols_read): New parameter.
	(Plugin_manager::claim_file): New parameter. Save the elf object for
	unclaimed objects.
	(Plugin_manager::get_elf_object): New function.
	(Plugin_manager::get_view): Change to directly use the bool to check
	if get_view is called from claim_file_hook.
	* plugin.h (input_objects): New function
	(Plugin__manager::load_plugins): New parameter.
	(Plugin_manager::claim_file): New parameter.
	(Plugin_manager::get_elf_object): New function.
	(Plugin_manager::in_claim_file_handler): New function.
	(Plugin_manager::in_claim_file_handler_): New member.
	(layout): New function.
	* readsyms.cc (Read_symbols::do_read_symbols): Call the claim_file
	handler with an extra parameter. Make the elf object before calling
	claim_file handler.
	* testsuite/plugin_test.c (get_section_count): New function pointer.
	(get_section_type): New function pointer.
	(get_section_name): New function pointer.
	(get_section_contents): New function pointer.
	(update_section_order): New function pointer.
	(allow_section_ordering): New function pointer.
	(onload): Check if the new interfaces exist.
2011-07-14 00:55:18 +00:00
Ian Lance Taylor e215319634 PR gold/12979
* options.h (class General_options): Add -Bgroup.
	* options.cc (General_options::finalize): If -Bgroup is set,
	default to --unresolved-symbols=report-all.
	* layout.cc (Layout::finish_dynamic_section): Implement -Bgroup.
	* target-reloc.h (issue_undefined_symbol_error): Handle
	--unresolved-symbols=report-all.
2011-07-11 16:19:51 +00:00
Ian Lance Taylor 6daf5215b7 PR gold/11985
* layout.cc (Layout::create_initial_dynamic_sections): Don't crash
	if linker script discards key sections.
	(Layout::create_dynamic_symtab): Likewise.
	(Layout::assign_local_dynsym_offsets): Likewise.
	(Layout::sized_create_version_sections): Likewise.
	(Layout::create_interp): Likewise.
	(Layout::finish_dynamic_section): Likewise.
	(Layout::set_dynamic_symbol_size): Likewise.
2011-07-09 06:33:59 +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
Cary Coutant 9fbd3822ad * incremental.cc (Incremental_inputs::report_command_line): Ignore
--incremental-patch option.
	* layout.cc (Free_list::allocate): Extend allocation beyond original
	end if enabled.
	(Layout::make_output_section): Mark sections that should get
	patch space.
	* options.cc (parse_percent): New function.
	* options.h (parse_percent): New function.
	(DEFINE_percent): New macro.
	(General_options): Add --incremental-patch option.
	* output.cc (Output_section::Output_section): Initialize new data
	members.
	(Output_section::add_input_section): Print section name when out
	of patch space.
	(Output_section::add_output_section_data): Likewise.
	(Output_section::set_final_data_size): Add patch space when
	doing --incremental-full.
	(Output_section::do_reset_address_and_file_offset): Remove patch
	space.
	(Output_segment::set_section_list_addresses): Print debug output
	only if --incremental-update.
	* output.h (Output_section::set_is_patch_space_allowed): New function.
	(Output_section::is_patch_space_allowed_): New data member.
	(Output_section::patch_space_): New data member.
	* parameters.cc (Parameters::incremental_full): New function.
	* parameters.h (Parameters::incremental_full): New function
	* testsuite/Makefile.am (incremental_test_2): Add test for
	--incremental-patch option.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/two_file_test_1_v1.cc (t1, t2, t3): Add comments.
	(t18): Remove function body.
2011-07-06 21:19:32 +00:00
Ian Lance Taylor 886288f10b PR gold/12957
* options.h (class General_options): Add -f and -F.
	* options.cc (General_options::finalize): Fatal error if -f/-F
	are used without -shared.
	* layout.cc (Layout::finish_dynamic_section): Implement -f/-F.
2011-07-03 04:46:56 +00:00
Ian Lance Taylor 07a6059735 PR gold/12571
* options.h (class General_options): Add
	--ld-generated-unwind-info.
	* ehframe.cc (Fde::write): Add address parameter.  Change all
	callers.  If associated with PLT, fill in address and size.
	(Cie::set_output_offset): Only add merge mapping if there is an
	object.
	(Cie::write): Add address parameter.  Change all callers.
	(Eh_frame::add_ehframe_for_plt): New function.
	* ehframe.h (class Fde): Update declarations.  Move shndx_ and
	input_offset_ fields into union u_, with new plt field.
	(Fde::Fde): Adjust for new union field.
	(Fde::Fde) [Output_data version]: New constructor.
	(Fde::add_mapping): Only add merge mapping if there is an object.
	(class Cie): Update declarations.
	(class Eh_frame): Declare add_ehframe_for_plt.
	* layout.cc (Layout::layout_eh_frame): Break out code into
	make_eh_frame_section, and call it.
	(Layout::make_eh_frame_section): New function.
	(Layout::add_eh_frame_for_plt): New function.
	* layout.h (class Layout): Update declarations.
	* merge.cc (Merge_map::add_mapping): Add assertion.
	* i386.cc: Include "dwarf.h".
	(class Output_data_plt_i386): Make first_plt_entry,
	dyn_first_plt_entry, exec_plt_entry, and dyn_plt_entry const.  Add
	plt_eh_frame_cie_size, plt_eh_frame_fde_size, plt_eh_frame_cie,
	and plt_eh_frame_fde.
	(Output_data_plt_i386::Output_data_plt_i386): Align to 16-byte
	boundary.  Call add_eh_frame_for_plt if appropriate.
	* x86_64.cc: Include "dwarf.h".
	(class Output_data_plt_x86_64): Align to 16-byte boundary.  Make
	first_plt_entry, plt_entry and tlsdesc_plt_entry const.  Add
	plt_eh_frame_cie_size, plt_eh_frame_fde_size, plt_eh_frame_cie,
	and plt_eh_frame_fde.
	(Output_data_plt_x86_64::init): Call add_eh_frame_for_plt if
	appropriate.
2011-07-01 22:05:01 +00:00
Ian Lance Taylor 4d5e4e62e1 PR gold/12675
* object.cc (Sized_relobj_file::check_eh_frame_flags): Check for
	SHT_X86_64_UNWIND.
	* layout.cc (Layout::layout_eh_frame): Likewise.
2011-06-29 21:39:19 +00:00
Ian Lance Taylor 886f533ada PR gold/12695
* layout.cc (Layout::symtab_section_shndx): New function.
	* layout.h (class Layout): Declare symtab_section_shndx.
	* output.cc (Output_section::write_header): Call it.
2011-06-29 21:26:40 +00:00