Commit Graph

87 Commits

Author SHA1 Message Date
Ian Lance Taylor 2ea9794110 Revert -Wshadow changes, all changes from:
2009-12-11  Doug Kwan  <dougkwan@google.com>
	2009-12-11  Nick Clifton  <nickc@redhat.com>
	* configure.ac: Remove -Wshadow when setting WARN_CXXFLAGS.
2009-12-14 19:53:05 +00:00
Nick Clifton 91d6fa6a03 Add -Wshadow to the gcc command line options used when compiling the binutils.
Fix up all warnings generated by the addition of this switch.
2009-12-11 13:42:17 +00:00
Ian Lance Taylor 594c8e5ede PR 10880
* object.h (class Object): Add is_needed and set_is_needed
	methods.  Add is_needed_ field.  Make bool fields into bitfields.
	* symtab.cc (Symbol_table::set_dynsym_indexes): If a symbol is
	defined in a dynamic object and referenced by a regular object,
	set is_needed for the dynamic object.
	* layout.cc (Layout::finish_dynamic_section): Don't add DT_NEEDED
	if the file is marked with as_needed and it is not needed.
2009-11-05 06:24:39 +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 72adc4fad7 2009-10-25 Doug Kwan <dougkwan@google.com>
* arm.cc (Arm_output_section, Arm_relobj): Forward class declarations.
	(Arm_input_section::as_arm_input_section): New method.
	(Arm_output_section): New class definition.
	(Arm_output_section::create_stub_group,
	Arm_output_section::group_sections): New method definitions.
2009-10-25 16:57:32 +00:00
Ian Lance Taylor 82bb573a56 * object.h (class Relocate_info): Add reloc_shdr and data_shdr
fields.
	* object.cc (Sized_relobj::relocate_sections): Set reloc_shdr and
	data_shdr fields of relinfo.
	* i386.cc (class Target_i386::Relocate): Remove ldo_addrs_ field.
	(Target_i386::Relocate::relocate_tls): Don't call fix_up_ldo.  For
	R_386_TLS_LDO_32, adjust based on section flags.
	(Target_i386::Relocate::fix_up_ldo): Remove.
2009-10-15 00:33:18 +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
Ian Lance Taylor 029ba97335 * object.h (class Object): Remove target_ field, and target,
sized_target, and set_target methods.
	(Object::sized_target): Remove.
	(class Sized_relobj): Update declarations.  Remove sized_target.
	* object.cc (Sized_relobj::setup): Remove target parameter.
	Change all callers.
	(Input_objects::add_object): Don't do anything with the target.
	(make_elf_sized_object): Add punconfigured parameter.  Change all
	callers.  Set or test parameter target.
	* dynobj.cc (Sized_dynobj::target): Remove target parameter.
	Change all callers.
	* parameters.cc (Parameters::set_target): Change parameter type to
	be non-const.
	(Parameters::default_target): Remove.
	(set_parameters_target): Change parameter type to be non-const.
	(parameters_force_valid_target): New function.
	(parameters_clear_target): New function.
	* parameters.h (class Parameters): Update declarations.  Remove
	default_target method.  Add sized_target and clear_target
	methods.  Change target_ to be non-const.
	(set_parameters_target): Update declaration.
	(parameters_force_valid_target): Declare.
	(parameters_clear_target): Declare.
	* readsyms.cc (Read_symbols::do_read_symbols): Pass punconfigured
	as NULL if we aren't searching.
	(Add_symbols::run): Don't check for compatible target.
	* fileread.cc (Input_file::open_binary): Call
	parameters_force_valid_target.
	* gold.cc (queue_middle_tasks): Likewise.
	* plugin.cc (make_sized_plugin_object): Likewise.  Don't call
	set_target on object.
	* dynobj.h (class Sized_dynobj): Update declarations.
	* archive.cc (Archive::get_elf_object_for_member): Return NULL if
	make_elf_object returns NULL.
	(Archive::include_member): Don't check whether object target is
	compatible.
	* output.cc (Output_section::add_input_section): Get target from
	parameters.
	(Output_section::relax_input_section): Likewise.
	* reloc.cc (Sized_relobj::do_gc_process_relocs): Get target from
	parameters.
	(Sized_relobj::do_scan_relocs): Likewise.
	(Sized_relobj::relocate_sections): Likewise.
	* resolve.cc (Symbol_table::resolve): Likewise.
	* symtab.cc (Symbol_table::wrap_symbol): Likewise.  Remove object
	parameter.  Change all callers.
	(Symbol_table::add_from_object): Get target from parameters.
	(Symbol_table::add_from_relobj): Don't check object target.
	(Symbol_table::add_from_dynobj): Likewise.
	(Symbol_table::define_special_symbol): Get target from
	parameters.
	* symtab.h (class Symbol_table): Update declaration.
	* testsuite/binary_unittest.cc (gold_testsuite): Remove target
	parameter.  Change all callers.  Clear parameter target.
	(Binary_test): Test target here.
	* testsuite/object_unittest.cc (gold_testsuite): Remove
	target_test_pointer parameter.  Change all callers.
	(Object_test): Test target here.
2009-09-30 22:21:13 +00:00
Doug Kwan f733487b04 2009-08-18 Doug Kwan <dougkwan@google.com>
* dynobj.cc (Sized_dynobj::setup): Take a Target object instead of
	an elcpp::Ehdr as parameter.  Adjust call to set_target.
	* dynobj.h (Sized_dynobj::setup): Take a Target object instead of
	an elfcpp::Ehdr as parameter.
	* object.cc (Object::set_target): Remove the version that looks up
	a target and sets it.
	(Sized_relobj::setup): Take a Target object instead of
	an elfcpp::Ehdr as parameter.  Adjust call to set_target.
	(make_elf_sized_object): Find target and ask target to
	make an ELF object.
	* object.h: (Object::set_target): Remove the version that looks up
	a target and sets it.
	(Sized_relobj::setup): Take a Target object instead of
	an elfcpp:Ehdr as parameter.
	* target.cc: Include dynobj.h.
	(Target::do_make_elf_object_implementation): New.
 	(Target::do_make_elf_object): New.
	* target.h (Target::make_elf_object): New template declaration.
	(Target::do_make_elf_object): New method declarations.
	(Target::do_make_elf_object_implementation): New template declaration.
2009-08-18 23:49:29 +00:00
Sriraman Tallam ef15dade89 *** empty log message *** 2009-08-05 20:51:56 +00:00
Ian Lance Taylor 1ef4d87fe8 PR 10400
* layout.h: #include <map>.
	(class Kept_section): Change from struct to class.  Add accessors
	and setters.  Add section size to Comdat_group mapping.  Change
	Comdat_group to std::map.  Add is_comdat_ field.  Add
	linkonce_size field in union.
	(class Layout): Update declaration of find_or_add_kept_section.
	Don't declare find_kept_object.
	* layout.cc (Layout::find_or_add_kept_section): Remove candidate
	parameter.  Add object, shndx, is_comdat, and is_group_name
	parameters.  Change all callers.  Adjust for new Kept_section.
	(Layout::find_kept_object): Remove.
	* object.cc (Sized_relobj::include_section_group): Update use of
	Kept_section.  Rename secnum to shndx.  Only record
	Kept_comdat_section if sections are the same size.
	(Sized_relobj::include_linkonce_section): Update use of
	Kept_section.  Only record Kept_comdat_section if sections are the
	same size.  Set size of linkonce section.
	(Sized_relobj::map_to_kept_section): Update call to
	get_kept_comdat_section.
	* object.h (class Sized_relobj): Rename fields in
	Kept_comdat_section to drop trailing underscores; change object
	field to Relobj*.  Change Kept_comdat_section_table to store
	struct rather than pointer.
	(Sized_relobj::set_kept_comdat_section): Remove kept parameter.
	Add kept_object and kept_shndx parameters.  Change all callers.
	(Sized_relobj::get_kept_comdat_section): Change return type to
	bool.  Add kept_object and kept_shndx parameters.  Change all
	callers.
	* plugin.cc (Pluginobj::include_comdat_group): Update call to
	Layout::find_or_add_kept_section.
2009-07-17 01:07:33 +00:00
Doug Kwan 805bb01c4b 2009-06-05 Doug Kwan <dougkwan@google.com>
* object.cc (Sized_relobj::Sized_relobj): Initialize
	discarded_eh_frame_shndx_ to -1U.
	(Sized_relobj::do_layout): Record index of a discard .eh_frame
	section.
	(Sized_relobj::do_count_local_symbols): Skip local symbols in
	a discarded .eh_frame section.
	(Sized_relobj::do_finalize_local_symbols): Ditto.
	* object.h (class Sized_relobj): Declare new member
	discarded_eh_frame_shndx_.
	* testsuite/Makefile.am (check_PROGRAMS): Add local_labels_test.
	(local_labels_test.o, local_labels_test): New rules.
	* testsuite/Makefile.in: Regenerate.
2009-06-05 18:16:31 +00:00
Cary Coutant 6551490093 2009-05-19 Doug Kwan <dougkwan@google.com>
* archive.cc (Archive::Archive): Move constructor from archive.h
	to here.  Initialize no_export_.
	(Archive::get_elf_object_for_member): Set no_export flag of object.
	* archive.h (Archive::Archive): Move constructor body to
	archive.cc.
	(Archive::no_export): New method.
	(Archive::no_export_): New field.
	* object.h (Object::Object): Initialize no_export_ to false.
	(Object::no_export, Object::set_no_export): New methods.
	(Object::no_export_): New field.
	* options.cc (General_options::parse_exclude_libs): New method.
	(General_options::check_excluded_libs) Same.
	* options.h (exclude_libs): New option.
	(General_options::check_excluded_libs): New method declaration.
	(General_options::excluded_libs_): New field.
	* symtab.cc (Symbol_table::add_from_relobj): Hide symbols with
	default or protected visibility if an object has no-export flag set.
	testsuite/Makefile.am (check_PROGRAMS): Add exclude_libs_test.
	(check_SCRIPTS): Add exclude_libs_test.sh.
	(check_DATA): Add exclude_libs_test.syms.
	(MOSTLYCLEANFILES): Add exclude_libs_test.syms,
	libexclude_libs_test_1.a and libexclude_libs_test_2.a.
	(exclude_libs_test_SOURCES, exclude_libs_test_DEPENDENCIES,
	exclude_libs_test_LDFLAGS and exclude_libs_test_LDADD): Define.
	(exclude_libs_test.syms, libexclude_libs_test_1.a,
	libexclude_libs_test_2.a): New rules.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/exclude_libs_test.c: New file.
	* testsuite/exclude_libs_test.sh: Ditto.
	* testsuite/exclude_libs_test_1.c: Ditto.
	* testsuite/exclude_libs_test_2.c: Ditto.
2009-05-19 22:14:17 +00:00
Ian Lance Taylor f6060a4d43 * object.cc (is_elf_object): Define.
* object.h (is_elf_object): Declare.
	* archive.cc (Archive::get_elf_object_for_member): Call
	is_elf_object.
	* readsymc.cc (Read_symbols::do_read_symbols): Likewise.
2009-03-24 18:42:10 +00:00
Ian Lance Taylor 15f8229bbf * readsyms.cc (Read_symbols::incompatible_warning): New function.
(Read_symbols::requeue): New function.
	(Read_symbols::do_read_symbols): If make_elf_object fails because
	the target type is not configured, and the file was searched for,
	issue a warning and retry with the next directory.
	(Add_symbols::run): If the file has an incompatible format, and
	it was searched for, requeue the Read_symbols task.  On error,
	release the object.
	* readsyms.h (class Read_symbols): Add dirindex_ field.  Add
	dirindex parameter to constructor.  Change all callers.  Declare
	incompatible_warning and requeue.
	(class Add_symbols): Add dirpath_, dirindex_, mapfile_,
	input_argument_ and input_group_ fields.  Add them to
	constructor.  Change all callers.
	(class Read_script): Add dirindex_ field.  Add it to constructor.
	Change all callers.
	* archive.cc (Archive::setup): Remove input_objects parameter.
	Change all callers.
	(Archive::get_file_and_offset): Likewise.
	(Archive::read_all_symbols): Likewise.
	(Archive::read_symbols): Likewise.
	(Archive::get_elf_object_for_member): Remove input_objects
	parameter.  Add punconfigured parameter.  Change all callers.
	(Archive::add_symbols): Change return type to bool.  Check return
	value of include_member.
	(Archive::include_all_members): Likewise.
	(Archive::include_member): Change return type to bool.  Return
	false if first included object has incompatible target.  Set
	included_member_ field.
	(Add_archive_symbols::run): If add_symbols returns false, requeue
	Read_symbols task.
	* archive.h (class Archive): Add included_member_ field.
	Initialize it in constructor.  Add input_file and searched_for
	methods.  Update declarations.
	(class Add_archive_symbols): Add dirpath_, dirindex_, and
	input_argument_ fields.  Add them to constructor.  Change all
	callers.
	* script.cc: Include "target-select.h".
	(class Parser_closure): Add skip_on_incompatible_target_ and
	found_incompatible_target_ fields.  Add
	skip_on_incompatible_target parameter to constructor.  Change all
	callers.  Add methods skip_on_incompatible_target,
	clear_skip_on_incompatible_target, found_incompatible_target, and
	set_found_incompatible_target.
	(read_input_script): Add dirindex parameter.  Change all callers.
	If parser finds an incompatible target, requeue Read_symbols
	task.
	(script_set_symbol): Clear skip_on_incompatible_target in
	closure.
	(script_add_assertion, script_parse_option): Likewise.
	(script_start_sections, script_add_phdr): Likewise.
	(script_check_output_format): New function.
	* script.h (read_input_script): Update declaration.
	* script-c.h (script_check_output_format): Declare.
	* yyscript.y (file_cmd): Handle OUTPUT_FORMAT.
	(ignore_cmd): Remove OUTPUT_FORMAT.
	* fileread.cc (Input_file::Input_file): Add explicit this.
	(Input_file::will_search_for): New function.
	(Input_file::open): Add pindex parameter.  Change all callers.
	* fileread.h (class Input_file): Add input_file_argument method.
	Declare will_search_for.  Update declarations.
	* object.cc (make_elf_object): Add punconfigured parameter.
	Change all callers.
	* object.h (class Object): Make input_file public.  Add
	searched_for method.
	(make_elf_object): Update declaration.
	* dirsearch.cc (Dirsearch::find): Add pindex parameter.  Use it to
	restart search.
	* dirsearch.h (class Dirsearch): Update declaration.
	* options.h (class General_options): Add --warn-search-mismatch.
	* parameters.cc (Parameters::is_compatible_target): New function.
	* parameters.h (class Parameters): Declare is_compatible_target.
	* workqueue.cc (Workqueue::add_blocker): New function.
	* workqueue.h (class Workqueue): Declare add_blocker.
2009-03-14 05:56:46 +00:00
Ian Lance Taylor 8a4c0b0d7e * layout.cc (Layout::find_or_add_kept_section): New function.
(Layout::add_comdat): Removed.
	* layout.h (struct Kept_section): Move out of class Layout.
	Remove trailing underscores from field names.  Add group_sections
	field.  Rename group_ field to is_group.  Change all uses.
	(class Layout): Declare find_or_add_kept_section, not add_comdat.
	* object.cc (Sized_relobj::Sized_relobj): Don't initialize
	comdat_groups_ field.
	(Sized_relobj::include_section_group): Use
	find_or_add_kept_section and Kept_section::group_sections.
	(Sized_relobj::include_linkonce_section): Likewise.
	* object.cc (class Sized_relobj): Don't define Comdat_group or
	Comdat_group_table.  Remove find_comdat_group and
	add_comdat_group.  Remove comdat_groups_ field.
	* plugin.cc (include_comdat_group): Use
	Layout::find_or_add_kept_section.
2009-03-01 22:22:02 +00:00
Ian Lance Taylor fd9d194f04 PR 6811
* options.h (class Search_directory): Add is_system_directory.
	(class General_options): Declare is_in_system_directory.
	* options.cc (get_relative_sysroot): Make static.
	(get_default_sysroot): Make static.
	(General_optoins::is_in_system_directory): New function.
	* fileread.cc (Input_file::is_in_system_directory): New function.
	* fileread.h (class Input_file): Declare is_in_system_directory.
	* object.h (class Object): Add is_in_system_directory.
	(class Input_objects): Remove system_library_directory_ field.
	* object.cc (Input_objects::add_object): Don't set
	system_library_directory_.
	(input_objects::found_in_system_library_directory): Remove.
	* symtab.cc (Symbol_table::write_globals): Remove input_objects
	parameter.  Change all callers.
	(Symbol_table::sized_write_globals): Likewise.
	(Symbol_table::warn_about_undefined_dynobj_symbol): Likewise.
	Call Object::is_in_system_directory.
	* symtab.h (class Symbol_table): Update declarations.
2009-02-28 04:39:57 +00:00
Cary Coutant f488e4b0e9 (From Rafael Espindola)
* archive.cc (Archive::include_member): Update calls to add_symbols.
	* dynobj.cc (Sized_dynobj<size, big_endian>::make_version_map): Add
	the Layout argument.
	* dynobj.h (do_add_symbols): Add the Layout argument.
	* object.cc (Sized_relobj<size, big_endian>::do_add_symbols): Add the
	Layout argument.
	* object.h (Object::add_symbols): Add the Layout argument.
	(Object::do_add_symbols): Add the Layout argument.
	(Sized_relobj::do_add_symbols): Add the Layout argument.
	* plugin.cc (Sized_pluginobj<size, big_endian>::do_add_symbols):
	Unify the two versions.
	(Add_plugin_symbols): Remove.
	* plugin.h (Pluginobj::add_symbols, Pluginobj::do_add_symbols): Remove.
	(Sized_pluginobj::do_add_symbols): Unify the two versions.
	(Add_plugin_symbols): Remove.
	* readsyms.cc (Read_symbols::do_read_symbols): Update call to
	Add_symbols. Use Add_symbols instead of Add_plugin_symbols.
	(Add_symbols::run): Make it work with Pulginobj.
2009-02-13 19:04:45 +00:00
Sriraman Tallam 6d03d481a0 2009-01-20 Sriraman Tallam <tmsriram@google.com>
* Makefile.am (CCFILES): Add gc.cc.
	(HFILES): Add gc.h.
	* Makefile.in: Regenerate.
	* gold.cc (Gc_runner): New class.
	(queue_initial_tasks): Call garbage collection related tasks
	when corresponding options are invoked.
	(queue_middle_gc_tasks): New function.
	(queue_middle_tasks): Reorder tasks to allow relocs to be read and
	processed early before laying out sections during garbage collection.
	* gold.h (queue_middle_gc_tasks): New function.
	(is_prefix_of): Move from "layout.cc".
	* i386.cc (Target_i386::gc_process_relocs): New function.
	* layout.cc (is_prefix_of): Remove. Move to "gold.h"
	* main.cc (main): Create object of class "Garbage_collection".
	* object.cc (Relobj::copy_symbols_data): New function.
	(Relobj::is_section_name_included): New function.
	(Sized_relobj::do_layout): Allow this function to be called twice
	during garbage collection and defer layout of section during the
	first call.
	* object.h (Relobj::get_symbols_data): New function.
	(Relobj::is_section_name_included): New function.
	(Relobj::copy_symbols_data): New function.
	(Relobj::set_symbols_data): New function.
	(Relobj::get_relocs_data): New function.
	(Relobj::set_relocs_data): New function.
	(Relobj::is_output_section_offset_invalid): New pure virtual function.
	(Relobj::gc_process_relocs): New function.
	(Relobj::do_gc_process_relocs): New pure virtual function.
	(Relobj::sd_): New data member.
	(Sized_relobj::is_output_section_offset_invalid): New function.
	(Sized_relobj::do_gc_process_relocs): New function.
	* options.h (General_options::gc_sections): Modify to not be a no-op.
	(General_options::print_gc_sections): New option.
	* plugin.cc (Plugin_finish::run): Remove function call to
	Plugin_manager::layout_deferred_objects.  Move it to "gold.cc".
	* powerpc.cc (Target_powerpc::gc_process_relocs): New function.
	* reloc.cc (Read_relocs::run): Add task to process relocs and
	determine unreferenced sections when doing garbage collection.
	(Gc_process_relocs): New class.
	(Sized_relobj::do_gc_process_relocs): New function.
	(Sized_relobj::do_scan_relocs): Don't try to scan the relocs for
	sections that are garbage collected.
	* reloc.h (Gc_process_relocs): New class.
	* sparc.cc (Target_sparc::gc_process_relocs): New function.
	* symtab.cc (Symbol::should_add_dynsym_entry): Do not add entries for
	symbols whose corresponding sections are garbage collected.
	(Symbol_table::Symbol_table): Add new parameter for the garbage
	collection object.
	(Symbol_table::gc_mark_undef_symbols): New function.
	(Symbol_table::gc_mark_symbol_for_shlib): New function.
	(Symbol_table::gc_mark_dyn_syms): New function.
	(Symbol_table::resolve): Do not treat symbols seen in dynamic objects
	as garbage.
	(Symbol_table::add_from_object): Likewise.
	(Symbol_table::add_from_relobj): When building shared objects, do not
	treat externally visible symbols as garbage.
	(Symbol_table::sized_finalize_symbol): Do not check dynamic symbol
	table information for static and relocatable links.
	* symtab.h (Symbol_table::set_gc): New function.
	(Symbol_table::gc): New function.
	(Symbol_table::gc_mark_undef_symbols): New function.
	(Symbol_table::gc_mark_symbol_for_shlib): New function.
	(Symbol_table::gc_mark_dyn_syms): New function.
	(Symbol_table::gc_): New data member.
	* target.h (Sized_target::gc_process_relocs): New pure virtual
	function.
	* x86_64.cc (Target_x86_64::gc_process_relocs): New function.
	* testsuite/testfile.cc (Target_test::gc_process_relocs): New function.
2009-01-28 02:25:33 +00:00
Cary Coutant 5995b57073 * object.cc (Sized_relobj::layout_section): New function.
(Sized_relobj::do_layout): Defer layout of input sections until after
	plugin has provided replacement files.
	(Sized_relobj::do_layout_deferred_sections): New function.
	* object.h (Relobj::set_section_offset): Remove virtual keyword.
	(Relobj::layout_deferred_sections): New function.
	(Relobj::do_layout_deferred_sections): New function.
	(Sized_relobj::do_layout_deferred_sections): New function.
	(Sized_relobj::layout_section): New function.
	(Sized_relobj::Deferred_layout): New structure.
	(Sized_relobj::deferred_layout_): New field.
	* plugin.cc (Plugin_manager::finish): Renamed, was cleanup.
	Change all callers.  Layout deferred sections.
	(class Plugin_finish): Renamed, was Plugin_cleanup.  Change all
	references.
	(Plugin_hook::run): Move code from do_plugin_hook inline.
	(Plugin_hook::do_plugin_hook): Remove.
	* plugin.h (Plugin_manager::Plugin_manager): Add missing initializers.
	(Plugin_manager::finish): Renamed, was cleanup.
	(Plugin_manager::should_defer_layout): New function.
	(Plugin_manager::add_deferred_layout_object): New function.
	(Plugin_manager::Deferred_layout_list): New type.
	(Plugin_manager::deferred_layout_objects_): New field.
	(Plugin_hook::do_plugin_hook): Remove.
2008-12-23 02:02:20 +00:00
Cary Coutant eff458138e * mapfile.cc (Mapfile::print_input_section): Change -1U to -1ULL.
* object.cc (Sized_relobj::do_layout): Use constant invalid_address
	instead of -1U.
	(Sized_relobj::do_finalize_local_symbols): Likewise.
	(Sized_relobj::map_to_kept_section): Likewise.
	* object.h (Sized_relobj::invalid_address): New constant.
	(Sized_relobj::do_output_section_offset): Check for invalid_address
	and return -1ULL.
	* output.cc (Output_reloc::local_section_offset): Use constant
	invalid_address instead of -1U.
	(Output_reloc::get_address): Likewise.
	(Output_section::output_address): Change -1U to -1ULL.
	* output.h (Output_reloc::invalid_address): New constant.
	* reloc.cc (Sized_relobj::write_sections): Use constant
	invalid_address instead of -1U.
	(Sized_relobj::relocate_sections): Likewise.
	* symtab.cc (Symbol_table::sized_finalize_symbol): Handle symbol
	values for merge sections.
	* target-reloc.h (relocate_for_relocatable): Use constant
	invalid_address instead of -1U.
2008-09-29 21:10:26 +00:00
Cary Coutant 89fc34211b Add plugin functionality for link-time optimization (LTO).
include/:
	* plugin-api.h: New file.

gold/:
	* configure.ac (plugins): Add --enable-plugins option.
	* configure: Regenerate.
	* config.in: Regenerate.
	* Makefile.am (LIBDL): New variable.
	(CCFILES): Add plugin.cc.
	(HFILES): Add plugin.h.
	(ldadd_var): Add LIBDL.
	* Makefile.in: Regenerate.

	* archive.cc: Include "plugin.h".
	(Archive::setup): Don't preread archive symbols when using a plugin.
	(Archive::get_file_and_offset): Add memsize parameter.  Change callers.
	(Archive::get_elf_object_for_member): Call plugin hooks for claiming
	files.
	(Archive::include_member): Add symbols from plugin objects.
	* archive.h (Archive::get_file_and_offset): Add memsize parameter.
	* descriptors.cc (Descriptors::open): Check for file descriptors
	abandoned by plugins.
	(Descriptors::claim_for_plugin): New function.
	* descriptors.h (Descriptors::claim_for_plugin): New function.
	(Open_descriptor::is_claimed): New field.
	(claim_descriptor_for_plugin): New function.
	* fileread.cc (File_read::claim_for_plugin): New function.
	* fileread.h (File_read::claim_for_plugin): New function.
	(File_read::descriptor): New function.
	* gold.cc: Include "plugin.h".
	(queue_initial_tasks): Add task to call plugin hooks for generating
	new object files.
	* main.cc: Include "plugin.h".
	(main): Load plugin libraries.
	* object.h (Pluginobj): Declare.
	(Object::pluginobj): New function.
	(Object::do_pluginobj): New function.
	(Object::set_target): New function.
	* options.cc: Include "plugin.h".
	(General_options::parse_plugin): New function.
	(General_options::General_options): Initialize plugins_ field.
	(General_options::add_plugin): New function.
	* options.h (Plugin_manager): Declare.
	(General_options): Add --plugin option.
	(General_options::has_plugins): New function.
	(General_options::plugins): New function.
	(General_options::add_plugin): New function.
	(General_options::plugins_): New field.
	* plugin.cc: New file.
	* plugin.h: New file.
	* readsyms.cc: Include "plugin.h".
	(Read_symbols::do_read_symbols): Check for archive before checking
	for ELF file.  Call plugin hooks to claim files.
	* resolve.cc (Symbol_table::resolve): Record when symbol is referenced
	from a real object file; force override when processing replacement
	files.
	* symtab.cc (Symbol::init_fields): Initialize in_real_elf_ field.
	(Symbol::init_base_object): Likewise.
	(Symbol::init_base_output_data): Likewise.
	(Symbol::init_base_output_segment): Likewise.
	(Symbol::init_base_constant): Likewise.
	(Symbol::init_base_undefined): Likewise.
	(Symbol::output_section): Assert that object is not a plugin.
	(Symbol_table::add_from_pluginobj): New function.
	(Symbol_table::sized_finalize_symbol): Treat symbols from plugins as
	undefined.
	(Symbol_table::sized_write_globals): Likewise.
	(Symbol_table::add_from_pluginobj): Instantiate template.
	* symtab.h (Sized_pluginobj): Declare.
	(Symbol::in_real_elf): New function.
	(Symbol::set_in_real_elf): New function.
	(Symbol::in_real_elf_): New field.
	(Symbol_table::add_from_pluginobj): New function.

	* testsuite/Makefile.am (AM_CFLAGS): New variable.
	(LIBDL): New variable.
	(LDADD): Add LIBDL.
	(check_PROGRAMS): Add plugin_test_1 and plugin_test_2.
	(check_SCRIPTS): Add plugin_test_1.sh and plugin_test_2.sh.
	(check_DATA): Add plugin_test_1.err and plugin_test_2.err.
	(MOSTLYCLEANFILES): Likewise.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_test.c: New file.
	* testsuite/plugin_test_1.sh: New file.
	* testsuite/plugin_test_2.sh: New file.
2008-09-19 22:54:57 +00:00
Ian Lance Taylor 2a00e4fb8e PR 5990
* descriptors.cc: New file.
	* descriptors.h: New file.
	* gold-threads.h (class Hold_optional_lock): New class.
	* fileread.cc: Include "descriptors.h".
	(File_read::~File_read): Release descriptor rather than closing
	it.
	(File_read::open) [file]: Call open_descriptor rather than open.
	Set is_descriptor_opened_.
	(File_read::open) [memory]: Assert that descriptor is not open.
	(File_read::reopen_descriptor): New function.
	(File_read::release): Release descriptor.
	(File_read::do_read): Make non-const.  Reopen descriptor.
	(File_read::read): Make non-const.
	(File_read::make_view): Reopen descriptor.
	(File_read::do_readv): Likewise.
	* fileread.h (class File_read): Add is_descriptor_opened_ field.
	Update declarations.
	* layout.cc: Include "descriptors.h".
	(Layout::create_build_id): Use open_descriptor rather than open.
	* output.cc: Include "descriptors.h".
	(Output_file::open): Use open_descriptor rather than open.
	* archive.cc (Archive::const_iterator): Change Archive to be
	non-const.
	(Archive::begin, Archive::end): Make non-const.
	(Archive::count_members): Likewise.
	* archive.h (class Archive): Update declarations.
	* object.h (Object::read): Make non-const.
	* Makefile.am (CCFILES): Add descriptors.cc.
	(HFILES): Add descriptors.h.
	* Makefile.in: Rebuild.
2008-07-25 04:25:49 +00:00
Ian Lance Taylor 7f649c59d1 PR 6658
* object.h (Merged_symbol_value::value): Do our best to handle a
	negative addend.
2008-07-24 01:24:50 +00:00
Ian Lance Taylor 92de84a60c * cref.cc: New file.
* cref.h: New file.
	* options.h (class General_options): Add --print-symbol-counts.
	* main.cc (main): Issue defined symbol report if requested.
	* archive.cc (Archive::interpret_header): Make into a const member
	function.
	(Archive::add_symbols): Call Input_objects::archive_start and
	archive_stop.
	(Archive::const_iterator): Define new class.
	(Archive::begin, Archive::end): New functions.
	(Archive::include_all_members): Rewrite to use iterator.
	(Archive::count_members): New function.
	* archive.h (class Archive): Update declarations.
	(Archive::filename): New function.
	* object.cc: Include "cref.h".
	(Sized_relobj::Sized_relobj): Initialize defined_count_.
	(Sized_relobj::do_get_global_symbol_counts): New function.
	(Input_objects::add_object): Add object to cross-referencer.
	(Input_objects::archive_start): New function.
	(Input_objects::archive_stop): New function.
	(Input_objects::print_symbol_counts): New function.
	* object.h: Declare Cref and Archive.
	(Object::get_global_symbol_counts): New function.
	(Object::do_get_global_symbol_counts): New pure virtual function.
	(class Sized_relobj): Add defined_count_ field.  Update
	declarations.
	(class Input_objects): Add cref_ field.  Update constructor.
	Update declarations.
	* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize symbols_ and
	defined_count_.
	(Sized_dynobj::do_add_symbols): Allocate symbols_ if printing
	symbol counts.
	(Sized_dynobj::do_get_global_symbol_counts): New function.
	* dynobj.h (class Sized_dynobj): Add fields symbols_ and
	defined_count_.  Update declarations.  Define Symbols typedef.
	* symtab.cc (Symbol_table::add_from_relobj): Add defined
	parameter.  Change all callers.
	(Symbol_table::add_from_dynobj): Add sympointers and defined
	parameters.  Change all callers.
	* symtab.h (class Symbol_table): Update declarations.
	* Makefile.am (CCFILES): Add cref.cc.
	(HFILES): Add cref.h.
	* Makefile.in: Rebuild.
2008-07-22 22:08:43 +00:00
Ian Lance Taylor ef9beddf72 Handle output sections with more than 0x7fffffff bytes.
* object.h (class Relobj): Change map_to_output_ to
	output_sections_, and just keep a section pointer.  Change all
	uses.  Move comdat group support to Sized_relobj.
	(Relobj::is_section_specially_mapped): Remove.
	(Relobj::output_section): Remove poff parameter.  Change all
	callers.
	(Relobj::output_section_offset): New function.
	(Relobj::set_section_offset): Rewrite.
	(Relobj::map_to_output): Remove.
	(Relobj::output_sections): New function.
	(Relobj::do_output_section_offset): New pure virtual function.
	(Relobj::do_set_section_offset): Likewise.
	(class Sized_relobj): Add section_offsets_ field.  Add comdat
	group support from Relobj.  Update declarations.
	(Sized_relobj::get_output_section_offset): New function.
	(Sized_relobj::do_output_section_offset): New function.
	(Sized_relobj::do_set_section_offset): New function.
	* object.cc (Relobj::output_section_address): Remove.
	(Sized_relobj::Sized_relobj): Initialize new fields.
	(Sized_relobj::include_section_group): Cast find_kept_object to
	Sized_relobj.
	(Sized_relobj::include_linkonce_section): Likewise.
	(Sized_relobj::do_layout): Use separate arrays for output section
	and output offset.
	(Sized_relobj::do_count_local_symbols): Change map_to_output to
	output_sections.
	(Sized_relobj::do_finalize_local_symbols): Change map_to_output to
	output_sections and section_offsets.
	(Sized_relobj::write_local_symbols): Likewise.
	(map_to_kept_section): Compute output address directly.
	* reloc.cc (Sized_relobj::do_read_relocs): Change map_to_output to
	output_sections and section_offsets.
	(Sized_relobj::write_sections): Likewise.
	(Sized_relobj::relocate_sections): Likewise.
	* symtab.cc (sized_finalize_symbol): Use output_section_offset.
	* output.h (class Output_reloc): Update declarations.  Change
	u2_.relobj to Sized_relobj*.
	(class Output_data_reloc): Change add functions to use
	Sized_relobj*.
	* output.cc (Output_reloc::Output_reloc): Change relobj to
	Sized_relobj*.
	(Output_reloc::local_section_offset): Change return type to
	Elf_Addr.  Use get_output_section_offset.
	(Output_reloc::get_address): Likewise.
	(Output_section::is_input_address_mapped): Don't call
	is_section_specially_mapped.
	(Output_section::output_offset): Likewise.
	(Output_section::output_address): Likewise.
	(Output_section::starting_output_address): Likewise.
	* copy-relocs.cc (Copy_relocs::copy_reloc): Change object
	parameter to Sized_relobj*.
	(Copy_relocs::need_copy_reloc): Likewise.
	(Copy_relocs::save): Likewise.
	* copy-relocs.h (class Copy_relocs): Update declarations.
	(class Copy_relocs::Copy_reloc_entry): Change constructor to use
	Sized_relobj*.  Change relobj_ field to Sized_relobj*.
	* target-reloc.h (relocate_for_relocatable): Change
	offset_in_output_section type to Elf_Addr.  Change code that uses
	it as well.
	* layout.cc (Layout::layout): Always set *off.
	* mapfile.cc (Mapfile::print_input_section): Use
	output_section_offset.
	* i386.cc (Target_i386::copy_reloc): Change object parameter to
	Sized_relobj*.
	* powerpc.cc (Target_powerpc::copy_reloc): Likewise.
	* sparc.cc (Target_sparc::copy_reloc): Likewise.
	* x86_64.cc (Target_x86_64::copy_reloc): Likewise.
2008-07-10 23:01:20 +00:00
Ian Lance Taylor 7d9e3d9854 * mapfile.cc: New file.
* mapfile.h: New file.
	* options.h (class General_options): Add -M/--print-map and -Map.
	* options.cc (General_options::finalize): Make -M equivalent to
	-Map -.
	* main.cc: Include <cstdio> and "mapfile.h".
	(main): Open mapfile if requested.
	* gold.cc (class Middle_runner): Add mapfile_ field.  Update
	constructor.  Change caller.
	(queue_initial_tasks): Add mapfile parameter.  Change caller.
	(queue_middle_tasks): Likewise.
	* gold.h (queue_initial_tasks, queue_middle_tasks): Update
	declarations.
	* archive.cc: Include "mapfile.h".
	(Archive::add_symbols): Add mapfile parameter.  Change all
	callers.  Pass mapfile, symbol, and reason to include_member.
	(Archive::include_all_members): Add mapfile parameter.  Change all
	callers.
	(Archive::include_member): Add mapfile, sym, and why parameters.
	Change all callers.  Report inclusion to map file.
	* archive.h: Include "fileread.h".
	(class Archive): Update declarations.
	(Archive::file): New const method.
	(class Add_archive_symbols): Add mapfile_ field.  Update
	constructor.  Change all callers.
	* readsyms.h (class Read_symbols): Likewise.
	(class Finish_group): Likewise.
	(class Read_script): Likewise.
	* common.cc: Include "mapfile.h".
	(Symbol_table::allocate_commons): Add mapfile parameter.  Change
	all callers.
	(Symbol_table::do_allocate_commons): Likewise.
	(Symbol_table::do_allocate_commons_list): Likewise.  Report common
	symbol allocation to mapfile.
	* common.h (class Allocate_commons_task): Add mapfile_ field.
	Update constructor.  Change all callers.
	* symtab.h (class Symbol_table): Update declarations.
	* layout.cc: Include "mapfile.h".
	(Layout_task_runner::run): Print information to mapfile.
	(Layout::create_gold_note): Change Output_data_fixed_space to
	Output_data_zero_fill.
	(Layout::create_build_id): Likewise.
	(Layout::print_to_mapfile): New function.
	* layout.h (class Layout_task_runner): Add mapfile_ field.  Update
	constructor.  Change caller.
	(class Layout): Declare print_to_mapfile.
	* output.cc (Output_section::Input_section::print_to_mapfile): New
	function.
	(Output_section::add_input_section): If producing a map, always
	add to input_sections_ list.
	(Output_section::do_print_to_mapfile): New function.
	(Output_segment::print_sections_to_mapfile): New function.
	(Output_segment::print_section_list_to_mapfile): New function.
	* output.h: Include "mapfile.h".
	(Output_data::print_to_mapfile): New function.
	(Output_data::do_print_to_mapfile): New virtual function.
	(Output_segment_headers::do_print_to_mapfile): New function.
	(Output_file_header::do_print_to_mapfile): New function.
	(Output_data_const::do_print_to_mapfile): New function.
	(class Output_data_const_buffer): Add map_name_ field.  Update
	constructor.  Change all callers.  Add do_print_to_mapfile
	function.
	(class Output_data_fixed_space): Likewise.
	(class Output_data_space): Likewise.
	(class Output_data_zero_fill): New class.
	(Output_data_strtab::do_print_to_mapfile): New function.
	(Output_data_reloc_base::do_print_to_mapfile): New function.
	(Output_relocatable_relocs::do_print_to_mapfile): New function.
	(Output_data_group::do_print_to_mapfile): New function.
	(Output_data_got::do_print_to_mapfile): New function.
	(Output_data_dynamic::do_print_to_mapfile): New function.
	(Output_symtab_xindex::do_print_to_mapfile): New function.
	(class Output_section): Declare do_print_to_mapflie.  Declare
	print_to_mapfile in Input_section.
	(class Output_segment): Declare new functions.
	* object.h (Sized_relobj::symbol_count): New function.
	* script-sections.cc
	(Output_section_element_dot_assignment::set_section_addresses):
	Change Output_data_fixed_space to Output_data_zero_fill.
	(Output_data_expression::do_print_to_mapfile): New function.
	* script.cc (read_input_script): Add mapfile parameter.  Change
	all callers.
	* script.h (read_input_script): Update declaration.
	* ehframe.h (Eh_frame_hdr::do_print_to_mapfile): New function.
	(Eh_frame::do_print_to_mapfile): New function.
	* merge.h (Output_merge_data::do_print_to_mapfile): New function.
	(Output_merge_string::do_print_to_mapfile): New function.
	* i386.cc (Output_data_plt_i386::do_print_to_mapfile): New
	function.
	* sparc.cc (Output_data_plt_sparc::do_print_to_mapfile): New
	function.
	* x86_64.cc (Output_data_plt_x86_64::do_print_to_mapfile): New
	function.
	* Makefile.am (CCFILES): Add mapfile.cc.
	(HFILES): Add mapfile.h.
	* Makefile.in: Rebuild.
2008-05-21 21:37:44 +00:00
Cary Coutant e94cf12773 * layout.cc (Layout::include_section): Refactored check for debug
info section.
	(Layout::add_comdat): Add new parameters.  Change type
	of signature parameter.  Add object and shndx to signatures table.
	(Layout::find_kept_object): New function.
	* layout.h: Include <cstring>.
	(Layout::is_debug_info_section): New function.
	(Layout::add_comdat): Add new parameters.
	(Layout::find_kept_object): New function.
	(Layout::Kept_section): New struct.
	(Layout::Signatures): Change type of map range.
	* object.cc (Relobj::output_section_address): New function.
	(Sized_relobj::include_section_group): Add new parameters.  Change
	calls to Layout::add_comdat.  Change to build table of kept comdat
	groups and table mapping discarded sections to kept sections.
	(Sized_relobj::include_linkonce_section): Likewise.  Add new parameter.
	(Sized_relobj::do_layout): Change calls to include_section_group and
	include_linkonce_section.
	(Sized_relobj::do_finalize_local_symbols): Do not set local symbol
	value to zero when section is discarded.
	(Sized_relobj::map_to_kept_section): New function.
	* object.h (Relobj::output_section_address): New function.
	(Relobj::Comdat_group): New type.
	(Relobj::find_comdat_group): New function.
	(Relobj::Comdat_group_table): New type.
	(Relobj::Kept_comdat_section): New type.
	(Relobj::Kept_comdat_section_table): New type.
	(Relobj::add_comdat_group): New function.
	(Relobj::set_kept_comdat_section): New function.
	(Relobj::get_kept_comdat_section): New function.
	(Relobj::comdat_groups_): New field.
	(Relobj::kept_comdat_sections_): New field.
	(Symbol_value::input_value): Update comment.
	(Sized_relobj::map_to_kept_section) New function.
	(Sized_relobj::include_linkonce_section): Add new parameter.
	* target-reloc.h (Comdat_behavior): New type.
	(get_comdat_behavior): New function.
	(relocate_section): Add code to map a discarded section to the
	corresponding kept section when applying a relocation.
2008-05-01 01:23:21 +00:00
Ian Lance Taylor d491d34e93 * object.cc (Xindex::initialize_symtab_xindex): New function.
(Xindex::read_symtab_xindex): New function.
	(Xindex::sym_xindex_to_shndx): New function.
	(Sized_relobj::find_symtab): Pick up SHT_SYMTAB_SHNDX section if
	available.
	(Sized_relobj::do_initialize_xindex): New function.
	(Sized_relobj::do_read_symbols): Adjust section links.
	(Sized_relobj::symbol_section_and_value): Add is_ordinary
	parameter.  Change all callers.
	(Sized_relobj::include_section_group): Adjust section links and
	symbol section indexes.
	(Sized_relobj::do_layout): Adjust section links.
	(Sized_relobj::do_count_local_symbols): Adjust section links and
	symbol section indexes.
	(Sized_relobj::do_finalize_local_symbols): Distinguish between
	ordinary and special symbols.
	(Sized_relobj::write_local_symbols): Add symtab_xindex and
	dynsym_xindex parameters.  Change all callers.  Adjust section
	links.  Use SHN_XINDEX when needed.
	(Sized_relobj::get_symbol_location_info): Adjust section links.
	Don't get fooled by special symbols.
	* object.h (class Xindex): Define.
	(class Object): Add xindex_ parameter.  Declare virtual functoin
	do_initialize_xindex.
	(Object::adjust_sym_shndx): New function.
	(Object::set_xindex): New protected function.
	(class Symbol_value): Add is_ordinary_shndx_ field.
	(Symbol_value::Symbol_value): Initialize is_ordinary_shndx_.
	(Symbol_value::value): Assert ordinary section.
	(Symbol_value::initialize_input_to_output_map): Likewise.
	(Symbol_value::set_input_shndx): Add is_ordinary parameter.
	Change all callers.
	(Symbol_value::input_shndx): Add is_ordinary parameter.  Change
	all callers.
	(class Sized_relobj): Update declarations.
	(Sized_relobj::local_symbol_input_shndx): Add is_ordinary
	parameter.  Change all callers.
	(Sized_relobj::adjust_shndx): New function.
	* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize dynsym_shndx_
	field.
	(Sized_dynobj::find_dynsym_sections): Remove pdynsym_shndx
	parameter.  Change all callers.  Pick up SHT_DYNSYM_SHNDX section
	for SHT_DYNSYM section if available.  Set dynsym_shndx_ field.
	(Sized_dynobj::read_dynsym_section): Adjust section links.
	(Sized_dynobj::read_dynamic): Likewise.
	(Sized_dynobj::do_read_symbols): Use dynsym_shndx_ field.  Adjust
	section links.
	(Sized_dynobj::do_initialize_xindex): New function.
	* dynobj.h (class Sized_dynobj): Add dynsym_shndx_ field.  Declare
	do_initialize_xindex.
	(Sized_dynobj::adjust_shndx): New function.
	* layout.cc (Layout::Layout): Initialize symtab_xindex_ and
	dynsym_xindex_ fields.
	(Layout::finalize): Add a call to set_section_indexes before
	creating the symtab sections.
	(Layout::set_section_indexes): Don't do anything if the section
	already has a section index.
	(Layout::create_symtab_sections): Add shnum parameter.  Change
	caller.  Create .symtab_shndx section if needed.
	(Layout::create_shdrs): Add shstrtab_section parameter.  Change
	caller.
	(Layout::allocated_output_section_count): New function.
	(Layout::create_dynamic_symtab): Create .dynsym_shndx section if
	needed.
	* layout.h (class Layout): Add symtab_xindex_ and dynsym_xindex_
	fields.  Update declarations.
	(Layout::symtab_xindex): New function.
	(Layout::dynsym_xindex): New function.
	(class Write_symbols_task): Add layout_ field.
	(Write_symbols_task::Write_symbols_task): Add layout parameter.
	Change caller.
	* output.cc (Output_section_headers::Output_section_headers): Add
	shstrtab_section parameter.  Change all callers.
	(Output_section_headers::do_sized_write): Store overflow values
	for section count and section string table section index in
	section header zero.
	(Output_file_header::do_sized_write): Check for overflow of
	section count and section string table section index.
	(Output_symtab_xindex::do_write): New function.
	(Output_symtab_xindex::endian_do_write): New function.
	* output.h (class Output_section_headers): Add shstrtab_section_.
	Update declarations.
	(class Output_symtab_xindex): Define.
	(Output_section::has_out_shndx): New function.
	* symtab.cc (Symbol::init_fields): Initialize is_ordinary_shndx_
	field.
	(Symbol::init_base): Add st_shndx and is_ordinary parameters.
	Change all callers.
	(Sized_symbol::init): Likewise.
	(Symbol::output_section): Check for ordinary symbol.
	(Symbol_table::add_from_object): Remove orig_sym parameter.  Add
	st_shndx, is_ordinary, and orig_st_shndx parameters.  Change all
	callers.
	(Symbol_table::add_from_relobj): Add symndx_offset parameter.
	Change all callers.  Simplify handling of symbols from sections
	not included in the link.
	(Symbol_table::add_from_dynobj): Handle ordinary symbol
	distinction.
	(Weak_alias_sorter::operator()): Assert that symbols are
	ordinary.
	(Symbol_table::sized_finalize_symbol): Handle ordinary symbol
	distinction.
	(Symbol_table::write_globals): Add symtab_xindex and dynsym_xindex
	parameters.  Change all callers.
	(Symbol_table::sized_write_globals): Likewise.  Handle ordinary
	symbol distinction.  Use SHN_XINDEX when needed.
	(Symbol_table::write_section_symbol): Add symtab_xindex
	parameter.  Change all callers.
	(Symbol_table::sized_write_section_symbol): Likewise.  Use
	SHN_XINDEX when needed.
	* symtab.h (class Symbol): Add is_ordinary_shndx_ field.  Update
	declarations.
	(Symbol::shndx): Add is_ordinary parameter.  Change all callers.
	(Symbol::is_defined): Check is_ordinary.
	(Symbol::is_undefined, Symbol::is_weak_undefined): Likewise.
	(Symbol::is_absolute, Symbol::is_common): Likewise.
	(class Sized_symbol): Update declarations.
	(class Symbol_table): Update declarations.
	* resolve.cc (Symbol::override_base): Add st_shndx and is_ordinary
	parameters.  Change all callers.
	(Sized_symbol::override): Likewise.
	(Symbol_table::override): Likewise.
	(symbol_to_bits): Add is_ordinary parameter.  Change all callers.
	(Symbol_table::resolve): Remove orig_sym parameter.  Add st_shndx,
	is_ordinary, and orig_st_shndx parameters.  Change all callers.
	* copy-relocs.cc (Copy_relocs::emit_copy_reloc): Require symbol
	to be in an ordinary section.
	* dwarf_reader.cc (Sized_dwarf_line_info::symbol_section): Add
	object and is_ordinary parameters.  Change all callers.
	(Sized_dwarf_line_info::read_relocs): Add object parameter.
	Change all callers.  Don't add undefined or non-ordinary symbols
	to reloc_map_.
	(Sized_dwarf_line_info::read_line_mappings): Add object parameter.
	Change all callers.
	* dwarf_reader.h (class Sized_dwarf_line_info): Update
	declarations.
	* ehframe.cc (Eh_frame::read_fde): Check for ordinary symbol.
	* reloc.cc (Sized_relobj::do_read_relocs): Adjust section links.
	(Sized_relobj::relocate_sections): Likewise.
	* target-reloc.h (scan_relocs): Adjust section symbol index.
	(scan_relocatable_relocs): Likewise.
	* i386.cc (Scan::local): Check for ordinary symbols.
	* sparc.cc (Scan::local): Likewise.
	* x86_64.cc (Scan::local): Likewise.
	* testsuite/binary_unittest.cc (Sized_binary_test): Update calls
	to symbol_section_and_value.
	* testsuite/many_sections_test.cc: New file.
	* testsuite/Makefile.am (BUILT_SOURCES): Define.
	(check_PROGRAMS): Add many_sections_test.
	(many_sections_test_SOURCES): Define.
	(many_sections_test_DEPENDENCIES): Define.
	(many_sections_test_LDFLAGS): Define.
	(BUILT_SOURCES): Add many_sections_define.h.
	(many_sections_define.h): New target.
	(BUILT_SOURCES): Add many_sections_check.h.
	(many_sections_check.h): New target.
	(check_PROGRAMS): Add many_sections_r_test.
	(many_sections_r_test_SOURCES): Define.
	(many_sections_r_test_DEPENDENCIES): Define.
	(many_sections_r_test_LDFLAGS): Define.
	(many_sections_r_test_LDADD): Define.
	(many_sections_r_test.o): New target.
	* testsuite/Makefile.in: Rebuild.
2008-04-19 18:30:58 +00:00
Ian Lance Taylor 39d0cb0e83 * fileread.cc (File_read::find_view): Add byteshift and vshifted
parameters.  Update for new key type to views_.  Change all
	callers.
	(File_read::read): Adjust for byteshift in returned view.
	(File_read::add_view): New function, broken out of
	find_and_make_view.
	(File_read::make_view): New function, broken out of
	find_and_make_view.
	(File_read::find_or_make_view): Add offset and aligned
	parameters.  Rewrite accordingly.  Change all callers.
	(File_read::get_view): Add offset and aligned parameters.  Adjust
	for byteshift in return value.
	(File_read::get_lasting_view): Likewise.
	* fileread.h (class File_read): Update declarations.
	(class File_read::View): Add byteshift_ field.  Add byteshift to
	constructor.  Add byteshift method.
	* archive.h (Archive::clear_uncached_views): New function.
	(Archive::get_view): Add aligned parameter.  Change all callers.
	* object.h (Object::get_view): Add aligned parameter.  Change all
	callers.
	(Object::get_lasting_view): Likewise.

	* fileread.cc (File_read::release): Don't call clear_views if
	there are multiple objects.
	* fileread.h (File_read::clear_uncached_views): New function.
	* archive.cc (Add_archive_symbols::run): Call clear_uncached_views
	on the archive.
2008-04-02 20:58:21 +00:00
Cary Coutant 0a65a3a740 * i386.cc (Target_i386::Got_type): New enum declaration.
(Target_i386::Scan::local): Updated callers of Output_data_got
	member functions.
	(Target_i386::Scan::global): Likewise.
	(Target_i386::Relocate::relocate): Likewise.
	(Target_i386::Relocate::relocate_tls): Likewise.
	* object.h (Got_offset_list): New class.
	(Sized_relobj::local_has_got_offset): Added got_type parameter.
	(Sized_relobj::local_got_offset): Likewise.
	(Sized_relobj::set_local_got_offset): Likewise.
	(Sized_relobj::local_has_tls_got_offset): Removed.
	(Sized_relobj::local_tls_got_offset): Removed.
	(Sized_relobj::set_local_tls_got_offset): Removed.
	(Sized_relobj::Local_got_offsets): Changed to store a list of offsets.
	* output.cc (Output_data_got::add_global): Added got_type parameter.
	(Output_data_got::add_global_with_rel): Likewise.
	(Output_data_got::add_global_with_rela): Likewise.
	(Output_data_got::add_global_pair_with_rel): New function.
	(Output_data_got::add_global_pair_with_rela): New function.
	(Output_data_got::add_local): Added got_type parameter.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_with_rela): Likewise.
	(Output_data_got::add_local_pair_with_rel): New function.
	(Output_data_got::add_local_pair_with_rela): New function.
	(Output_data_got::add_global_tls): Removed.
	(Output_data_got::add_global_tls_with_rel): Removed.
	(Output_data_got::add_global_tls_with_rela): Removed.
	(Output_data_got::add_local_tls): Removed.
	(Output_data_got::add_local_tls_with_rel): Removed.
	(Output_data_got::add_local_tls_with_rela): Removed.
	* output.h (Output_data_got::add_global): Added got_type parameter.
	(Output_data_got::add_global_with_rel): Likewise.
	(Output_data_got::add_global_with_rela): Likewise.
	(Output_data_got::add_global_pair_with_rel): New function.
	(Output_data_got::add_global_pair_with_rela): New function.
	(Output_data_got::add_local): Added got_type parameter.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_with_rela): Likewise.
	(Output_data_got::add_local_pair_with_rel): New function.
	(Output_data_got::add_local_pair_with_rela): New function.
	(Output_data_got::add_global_tls): Removed.
	(Output_data_got::add_global_tls_with_rel): Removed.
	(Output_data_got::add_global_tls_with_rela): Removed.
	(Output_data_got::add_local_tls): Removed.
	(Output_data_got::add_local_tls_with_rel): Removed.
	(Output_data_got::add_local_tls_with_rela): Removed.
	* resolve.cc (Symbol::override_base_with_special): Removed
	reference to has_got_offset_ field.
	* symtab.cc (Symbol::init_fields): Replaced initialization
	of got_offset_ with got_offsets_.  Removed initialization
	of has_got_offset_
	*symtab.h (Symbol::has_got_offset): Aded got_type parameter.
	(Symbol::got_offset): Likewise.
	(Symbol::set_got_offset): Likewise.
	(Symbol::has_tls_got_offset): Removed.
	(Symbol::tls_got_offset): Removed.
	(Symbol::set_tls_got_offset): Removed.
	(Symbol::got_offset_): Removed.
	(Symbol::tls_mod_got_offset_): Removed.
	(Symbol::tls_pair_got_offset_): Removed.
	(Symbol::got_offsets_): New field.
	(Symbol::has_got_offset): Removed.
	(Symbol::has_tls_mod_got_offset): Removed.
	(Symbol::has_tls_pair_got_offset): Removed.
	* x86_64.cc (Target_x86_64::Got_type): New enum declaration.
	(Target_x86_64::Scan::local): Updated callers of Output_data_got
	member functions.
	(Target_x86_64::Scan::global): Likewise.
	(Target_x86_64::Relocate::relocate): Likewise.
	(Target_x86_64::Relocate::relocate_tls): Likewise.
2008-03-25 18:37:16 +00:00
Ian Lance Taylor d1f003c610 Fix handling of RELA relative relocs against local symbols in merge
sections.
2008-03-16 23:51:19 +00:00
Ian Lance Taylor ebdbb4583d Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
Ian Lance Taylor 7d1a9ebbf2 Remove gcc 3.2 compatibility hacks. 2008-02-29 19:19:17 +00:00
Ian Lance Taylor 7019cd2565 Implement -q/--emit-relocs. 2008-02-27 22:38:18 +00:00
Ian Lance Taylor dceae3c154 Support dynamic relocations against local section symbols. 2008-02-12 00:28:48 +00:00
Ian Lance Taylor 88dd47ac00 Implement --just-symbols, including -R FILE. Fix symbol values when
doing a relocatable link.
2008-02-07 01:51:25 +00:00
Ian Lance Taylor fbfba50887 Support creating empty output when there are no input objects. 2008-02-06 20:32:10 +00:00
Ian Lance Taylor 6a74a71947 Initial -r support. 2008-02-06 08:13:50 +00:00
Ian Lance Taylor a445fddf82 Fully implement the SECTIONS clause. 2008-02-04 05:43:05 +00:00
Ian Lance Taylor cb29561284 Reduce the number of system calls. Use readv instead of pread. Do
better handling of cached views.
2008-01-02 23:48:49 +00:00
Ian Lance Taylor a9a60db689 Speed up relocations against local symbols in merged sections. 2007-12-21 21:19:45 +00:00
Ian Lance Taylor 8383303e0a Add section_size_type and section_offset_type, use them to replace a
lot of instances of off_t.
2007-12-18 00:48:04 +00:00
Ian Lance Taylor 17a1d0a9b2 Rewrite workqueue. This version eliminates the master thread, and
reduces the amount of locking required to find a new thread to run.
2007-12-14 19:00:21 +00:00
Ian Lance Taylor 7004837e8d Add const to Object::read and Object::sized_target. 2007-12-14 18:50:01 +00:00
Ian Lance Taylor 6d01333390 From Craig Silverstein: size hash tables to avoid resizing. 2007-12-14 05:24:17 +00:00
Ian Lance Taylor ac1f0c21ae From Cary Coutant: Remove commented out assert. Also add comment for
bitfield check.
2007-12-07 00:54:28 +00:00
Ian Lance Taylor 7bf1f8020f From Cary Coutant: More support for generating shared libraries. 2007-12-06 05:55:50 +00:00
Ian Lance Taylor 96803768f1 Compress all debug sections. 2007-12-01 06:34:12 +00:00