Commit Graph

124 Commits

Author SHA1 Message Date
Cary Coutant
e9c1bdad26 Fix --dynamic-list so that symbols not in the list are still exported.
In PR 13577, the complaint was that -Bsymbolic was overriding the binding
behavior for symbols listed in the --dynamic-list by setting the DT_SYMBOLIC
tag in the dynamic table. In reading the Gnu ld manual, I decided that
--dynamic-list should be mutually exclusive of -Bsymbolic, and modified
gold so that --dynamic-list would treat symbols listed as preemptible,
and all other symbols as internally bound. I was wrong.

PR 16992 shows that with --dynamic-list (and not -Bsymbolic), a symbol
not listed in the dynamic list is being internally bound within the
shared library, but because it's still in the dynamic symbol table, we
expose it to a COPY relocation, and things go really bad from there.

(I can reproduce the same failure, simply by turning on -Bsymbolic-functions
with the Gnu linker. Even though the symbol is bound internally, it's
still exported to the dynamic symbol table, and is exposed to a COPY
relocation.)

I've backed out part of the fix for PR 13577, and -Bsymbolic (or
-Bsymbolic-functions) can now be used with --dynamic-list, but if the
two are used together, we do not set DT_SYMBOLIC or DF_SYMBOLIC
(this matches Gnu ld behavior). We now treat symbols listed in the
dynamic list as premptible, but we do not automatically treat symbols
not listed there as non-premptible.

gold/
	PR gold/13577
	PR gold/16992
	* layout.cc (Layout::finish_dynamic_section): Don't set DT_SYMBOLIC or
	DF_SYMBOLIC if --dynamic-list option is used.
	* options.cc (General_options::finalize): --dynamic-list is not
	mutually exclusive with -Bsymbolic.
	* symtab.h (Symbol::is_preemptible): Don't exclude dynamic symbols not
	listed in --dynamic-list.
	* testsuite/Makefile.am (dynamic_list_lib2.so): Add
	-Bsymbolic-functions.
	* testsuite/Makefile.in: Regenerate.
2015-02-16 22:15:12 -08:00
Alan Modra
b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
Alan Modra
4b95cf5c0c Update copyright years 2014-03-05 22:16:15 +10:30
Cary Coutant
fd834e57ff Fix problems with the --dynamic-list option.
PR gold/13577 complains that even though symbols listed in
the --dynamic-list script are exported, they are still bound symbolically
if -Bsymbolic is also used. There are two underlying problems here.
First, -Bsymbolic should be overridden by --dynamic-list, since the
dynamic list provides an explicit list of symbols that are not bound
within the library, and if we go ahead and set DT_SYMBOLIC, then the
dynamic loader will bind it within the library anyway. Second, gold
did not properly identify the symbols listed in the file as preemptible.

PR gold/16530 complains that symbols listed in the --dynamic-list script
can still be garbage collected. I've fixed this by checking the symbols
as they're added to the symbol table. (Unlike the --export-dynamic-symbol
option, we can't iterate over the list, because the --dynamic-list script
can have wildcards in it.)

gold/

2014-02-05  Cary Coutant  <ccoutant@google.com>

	PR gold/13577
	* options.cc (General_options::parse_dynamic_list):
	Set have_dynamic_list_.
	(General_options::General_options): Initialize have_dynamic_list_.
	(General_options::finalize): Turn off -Bsymbolic and
	-Bsymbolic-functions if --dynamic-list provided.
	* options.h (General_options::have_dynamic_list): New function.
	(General_options::have_dynamic_list_): New data member.
	* symtab.h (Symbol::is_preemptible): Handle --dynamic-list
	correctly.

	PR gold/16530
	* symtab.cc (Symbol_table::add_from_relobj): If symbol is named
	in --dynamic-list, mark it.

	* testsuite/Makefile.am (gc_dynamic_list_test.sh): New test case.
	(dynamic_list_2): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/dynamic_list_2.cc: New file.
	* testsuite/dynamic_list_2.t: New file.
	* testsuite/dynamic_list_lib1.cc: New file.
	* testsuite/dynamic_list_lib2.cc: New file.
	* testsuite/gc_dynamic_list_test.c: New file.
	* testsuite/gc_dynamic_list_test.sh: New file.
	* testsuite/gc_dynamic_list_test.t: New file.
2014-02-05 18:01:47 -08:00
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
Ian Lance Taylor
956b03bbdf * options.cc (General_options::string_to_object_format): Accept
"default".
2013-03-08 22:34:46 +00:00
Cary Coutant
f9fa4a6341 * options.cc (General_options::finalize): Disallow -pie and -static. 2012-02-15 00:56:16 +00:00
Ian Lance Taylor
3f3cddf146 * configure.ac: Add --with-lib-path option. Define LIB_PATH and
NATIVE_LINKER.
	* Makefile.am (AM_CPPFLAGS): Define TOOLLIBDIR.
	* options.cc (General_options::finalize): Use library search path
	from configure script if specified.  If not native and no sysroot,
	only search TOOLLIBDIR.
	* options.h (Search_directory::Search_directory): Change name to
	const std::string&.
	(General_options::add_to_library_path_with_sysroot): Change arg to
	const std::string&.
	* configure, Makefile.in, config.in: Rebuild.
2011-11-03 04:32:01 +00:00
Diego Novillo
6a59a5c20b * options.cc (parse_uint): Fix dereference of RETVAL. 2011-10-03 17:01:43 +00:00
Cary Coutant
403a3331af * gold/gold.cc (queue_initial_tasks): Move option checks ...
* gold/options.cc (General_options::finalize): ... to here. Disable
	some options; make others fatal.
2011-09-26 23:42:06 +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
Cary Coutant
221597a548 * incremental.cc (Sized_incremental_binary::do_file_has_changed):
Check disposition for startup file.
	(Incremental_inputs::report_command_line): Ignore
	--incremental-startup-unchanged option.
	* options.cc (General_options::parse_incremental_startup_unchanged):
	New function.
	(General_options::General_options): Initialize new data member.
	* options.h (Incremental_disposition): Add INCREMENTAL_STARTUP.
	(General_options): Add --incremental-startup-unchanged option.
	(General_options::incremental_startup_disposition): New function.
	(General_options::incremental_startup_disposition_): New data member.
2011-07-06 22:15:12 +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
03ef7571fc PR gold/12934
* target-select.cc (Target_selector::Target_selector): Add
	emulation parameter.  Change all callers.
	(select_target_by_bfd_name): Rename from select_target_by_name.
	Change all callers.
	(select_target_by_emulation): New function.
	(supported_emulation_names): New function.
	* target-select.h (class Target_selector): Add emulation_ field.
	Update declarations.
	(Target_selector::recognize_by_bfd_name): Rename from
	recognize_by_name.  Change all callers.
	(Target_selector::supported_bfd_names): Rename from
	supported_names.  Change all callers.
	(Target_selector::recognize_by_emulation): New function.
	(Target_selector::supported_emulations): New function.
	(Target_selector::emulation): New function.
	(Target_selector::do_recognize_by_bfd_name): Rename from
	do_recognize_by_name.  Change all callers.
	(Target_selector::do_supported_bfd_names): Rename from
	do_supported_names.  Change all callers.
	(Target_selector::do_recognize_by_emulation): New function.
	(Target_selector::do_supported_emulations): New function.
	(select_target_by_bfd_name): Change name in declaration.
	(select_target_by_emulation): Declare.
	(supported_emulation_names): Declare.
	* parameters.cc (parameters_force_valid_target): Try to find
	target based on emulation from -m option.
	* options.h (class General_options): Change doc string for -m.
	* options.cc (help): Print emulations.
	(General_options::parse_V): Likewise.
	* freebsd.h (Target_selector_freebsd::Target_selector_freebsd):
	Add emulation parameter.  Change all callers.
2011-06-28 23:12:31 +00:00
Cary Coutant
cdc29364d1 * archive.cc (Archive::include_member): Adjust call to
report_object.
	(Add_archive_symbols::run): Track argument serial numbers.
	(Lib_group::include_member): Likewise.
	(Add_lib_group_symbols::run): Adjust call to report_archive_begin.
	* archive.h (Incremental_archive_entry::Archive_member):
	Initialize arg_serial_.
	(Archive_member::arg_serial_): New data member.
	* dynobj.cc (Dynobj::Dynobj): Allow input_file_ to be NULL.
	(Sized_dynobj::do_add_symbols): Track symbols when doing an
	incremental link.
	(Sized_dynobj::do_for_all_local_got_entries): New function.
	* dynobj.h: (Sized_dynobj::do_for_all_local_got_entries): New
	function.
	* fileread.cc (get_mtime): New function.
	* fileread.h (get_mtime): New function.
	* gold.cc (queue_initial_tasks): Check for incremental update.
	(process_incremental_input): New function.
	(queue_middle_tasks): Don't force valid target for incremental
	update.
	* incremental-dump.cc (find_input_containing_global): Adjust
	size of symbol info entry.
	(dump_incremental_inputs): Dump argument serial number and
	in_system_directory flag; bias shndx by 1; print symbol names
	when dumping per-file symbol lists; use new symbol info readers.
	* incremental.cc
	(Output_section_incremental_inputs:update_data_size): New function.
	(Sized_incremental_binary::setup_readers): Setup input readers
	for each input file; build maps for files added from libraries
	and scripts.
	(Sized_incremental_binary::check_input_args): New function.
	(Sized_incremental_binary::do_check_inputs): Build map of argument
	serial numbers to input arguments.
	(Sized_incremental_binary::do_file_has_changed): Rename
	do_file_is_unchanged to this; compare file modification times.
	(Sized_incremental_binary::do_init_layout): New function.
	(Sized_incremental_binary::do_reserve_layout): New function.
	(Sized_incremental_binary::do_get_input_reader): Remove.
	(Sized_incremental_binary::get_symtab_view): New function.
	(Incremental_checker::can_incrementally_link_output_file): Remove.
	(Incremental_inputs::report_command_line): Exclude --debug options.
	(Incremental_inputs::report_archive_begin): Add parameter; track
	argument serial numbers; don't put input file entry for archive
	before archive members.
	(Incremental_inputs::report_archive_end): Put input file entry
	for archive after archive members.
	(Incremental_inputs::report_object): Add parameter; track argument
	serial numbers and in_system_directory flag.
	(Incremental_inputs::report_script): Add parameter; track argument
	serial numbers.
	(Output_section_incremental_inputs::set_final_data_size): Adjust
	size of symbol info entry; check for forwarding symbols.
	(Output_section_incremental_inputs::write_input_files): Write
	in_system_directory flag and argument serial number.
	(Output_section_incremental_inputs::write_info_blocks): Map section
	indices between incremental info and original input file; store
	input section index for each symbol.
	(class Local_got_offset_visitor): Derive from Got_offset_list::Visitor;
	change operator() to visit().
	(class Global_got_offset_visitor): Likewise.
	(class Global_symbol_visitor_got_plt):
	(Output_section_incremental_inputs::write_got_plt): Use new visitor
	classes.
	(Sized_incr_relobj::Sized_incr_relobj): New constructor.
	(Sized_incr_relobj::do_read_symbols): New function.
	(Sized_incr_relobj::do_layout): New function.
	(Sized_incr_relobj::do_layout_deferred_sections): New function.
	(Sized_incr_relobj::do_add_symbols): New function.
	(Sized_incr_relobj::do_should_include_member): New function.
	(Sized_incr_relobj::do_for_all_global_symbols): New function.
	(Sized_incr_relobj::do_for_all_local_got_entries): New function.
	(Sized_incr_relobj::do_section_size): New function.
	(Sized_incr_relobj::do_section_name): New function.
	(Sized_incr_relobj::do_section_contents): New function.
	(Sized_incr_relobj::do_section_flags): New function.
	(Sized_incr_relobj::do_section_entsize): New function.
	(Sized_incr_relobj::do_section_address): New function.
	(Sized_incr_relobj::do_section_type): New function.
	(Sized_incr_relobj::do_section_link): New function.
	(Sized_incr_relobj::do_section_info): New function.
	(Sized_incr_relobj::do_section_addralign): New function.
	(Sized_incr_relobj::do_initialize_xindex): New function.
	(Sized_incr_relobj::do_get_global_symbol_counts): New function.
	(Sized_incr_relobj::do_read_relocs): New function.
	(Sized_incr_relobj::do_gc_process_relocs): New function.
	(Sized_incr_relobj::do_scan_relocs): New function.
	(Sized_incr_relobj::do_count_local_symbols): New function.
	(Sized_incr_relobj::do_finalize_local_symbols): New function.
	(Sized_incr_relobj::do_set_local_dynsym_indexes): New function.
	(Sized_incr_relobj::do_set_local_dynsym_offset): New function.
	(Sized_incr_relobj::do_relocate): New function.
	(Sized_incr_relobj::do_set_section_offset): New function.
	(Sized_incr_dynobj::Sized_incr_dynobj): New function.
	(Sized_incr_dynobj::do_read_symbols): New function.
	(Sized_incr_dynobj::do_layout): New function.
	(Sized_incr_dynobj::do_add_symbols): New function.
	(Sized_incr_dynobj::do_should_include_member): New function.
	(Sized_incr_dynobj::do_for_all_global_symbols): New function.
	(Sized_incr_dynobj::do_for_all_local_got_entries): New function.
	(Sized_incr_dynobj::do_section_size): New function.
	(Sized_incr_dynobj::do_section_name): New function.
	(Sized_incr_dynobj::do_section_contents): New function.
	(Sized_incr_dynobj::do_section_flags): New function.
	(Sized_incr_dynobj::do_section_entsize): New function.
	(Sized_incr_dynobj::do_section_address): New function.
	(Sized_incr_dynobj::do_section_type): New function.
	(Sized_incr_dynobj::do_section_link): New function.
	(Sized_incr_dynobj::do_section_info): New function.
	(Sized_incr_dynobj::do_section_addralign): New function.
	(Sized_incr_dynobj::do_initialize_xindex): New function.
	(Sized_incr_dynobj::do_get_global_symbol_counts): New function.
	(make_sized_incremental_object): New function.
	(Incremental_library::copy_unused_symbols): New function.
	(Incremental_library::do_for_all_unused_symbols): New function.
	* incremental.h (enum Incremental_input_flags): New type.
	(class Incremental_checker): Remove.
	(Incremental_input_entry::Incremental_input_entry): Add argument
	serial number.
	(Incremental_input_entry::arg_serial): New function.
	(Incremental_input_entry::set_is_in_system_directory): New function.
	(Incremental_input_entry::is_in_system_directory): New function.
	(Incremental_input_entry::arg_serial_): New data member.
	(Incremental_input_entry::is_in_system_directory_): New data member.
	(class Script_info): Move here from script.h.
	(Script_info::Script_info): Add filename parameter.
	(Script_info::filename): New function.
	(Script_info::filename_): New data member.
	(Incremental_script_entry::Incremental_script_entry): Add argument
	serial number.
	(Incremental_object_entry::Incremental_object_entry): Likewise.
	(Incremental_object_entry::add_input_section): Build list of input
	sections with map to original shndx.
	(Incremental_object_entry::get_input_section_index): New function.
	(Incremental_object_entry::shndx_): New data member.
	(Incremental_object_entry::name_key_): Rename; adjust all refs.
	(Incremental_object_entry::sh_size_): Rename; adjust all refs.
	(Incremental_archive_entry::Incremental_archive_entry): Add argument
	serial number.
	(Incremental_inputs::report_archive_begin): Likewise.
	(Incremental_inputs::report_object): Likewise.
	(Incremental_inputs::report_script): Likewise.
	(class Incremental_global_symbol_reader): New class.
	(Incremental_input_entry_reader::Incremental_input_entry_reader): Read
	and store flags and input file type.
	(Incremental_input_entry_reader::arg_serial): New function.
	(Incremental_input_entry_reader::type): Extract type from flags.
	(Incremental_input_entry_reader::is_in_system_directory): New function.
	(Incremental_input_entry_reader::get_input_section_count): Call
	accessor function for type.
	(Incremental_input_entry_reader::get_symbol_offset): Call accessor
	function for type; adjust size of global symbol entry.
	(Incremental_input_entry_reader::get_global_symbol_count): Call
	accessor function for type.
	(Incremental_input_entry_reader::get_object_count): Likewise.
	(Incremental_input_entry_reader::get_object_offset): Likewise.
	(Incremental_input_entry_reader::get_member_count): Likewise.
	(Incremental_input_entry_reader::get_unused_symbol_count): Likewise.
	(Incremental_input_entry_reader::get_member_offset): Likewise.
	(Incremental_input_entry_reader::get_unused_symbol): Likewise.
	(Incremental_input_entry_reader::Global_symbol_info): Remove.
	(Incremental_input_entry_reader::get_global_symbol_info): Remove.
	(Incremental_input_entry_reader::get_global_symbol_reader): New
	function.
	(Incremental_input_entry_reader::get_output_symbol_index): New
	function.
	(Incremental_input_entry_reader::type_): Remove.
	(Incremental_input_entry_reader::flags_): New data member.
	(Incremental_inputs_reader::input_file_offset): New function.
	(Incremental_inputs_reader::input_file_index): New function.
	(Incremental_inputs_reader::input_file): Call input_file_offset.
	(Incremental_inputs_reader::input_file_at_offset): New function.
	(Incremental_relocs_reader::get_r_type): Reformat.
	(Incremental_relocs_reader::get_r_shndx): Reformat.
	(Incremental_relocs_reader::get_r_offset): Reformat.
	(Incremental_relocs_reader::data): New function.
	(Incremental_binary::Incremental_binary): Initialize new data members.
	(Incremental_binary::check_inputs): Add cmdline parameter.
	(Incremental_binary::file_is_unchanged): Remove.
	(Input_reader::arg_serial): New function.
	(Input_reader::get_unused_symbol_count): New function.
	(Input_reader::get_unused_symbol): New function.
	(Input_reader::do_arg_serial): New function.
	(Input_reader::do_get_unused_symbol_count): New function.
	(Input_reader::do_get_unused_symbol): New function.
	(Incremental_binary::input_file_count): New function.
	(Incremental_binary::get_input_reader): Change signature to use
	index instead of filename.
	(Incremental_binary::file_has_changed): New function.
	(Incremental_binary::get_input_argument): New function.
	(Incremental_binary::get_library): New function.
	(Incremental_binary::get_script_info): New function.
	(Incremental_binary::init_layout): New function.
	(Incremental_binary::reserve_layout): New function.
	(Incremental_binary::output_file): New function.
	(Incremental_binary::do_check_inputs): New function.
	(Incremental_binary::do_file_is_unchanged): Remove.
	(Incremental_binary::do_file_has_changed): New function.
	(Incremental_binary::do_init_layout): New function.
	(Incremental_binary::do_reserve_layout): New function.
	(Incremental_binary::do_input_file_count): New function.
	(Incremental_binary::do_get_input_reader): Change signature.
	(Incremental_binary::input_args_map_): New data member.
	(Incremental_binary::library_map_): New data member.
	(Incremental_binary::script_map_): New data member.
	(Sized_incremental_binary::Sized_incremental_binary): Initialize
	new data members.
	(Sized_incremental_binary::output_section): New function.
	(Sized_incremental_binary::inputs_reader): Add const.
	(Sized_incremental_binary::symtab_reader): Add const.
	(Sized_incremental_binary::relocs_reader): Add const.
	(Sized_incremental_binary::got_plt_reader): Add const.
	(Sized_incremental_binary::get_symtab_view): New function.
	(Sized_incremental_binary::Inputs_reader): New typedef.
	(Sized_incremental_binary::Input_entry_reader): New typedef.
	(Sized_incremental_binary::do_check_inputs): Add cmdline parameter.
	(Sized_incremental_binary::do_file_is_unchanged): Remove.
	(Sized_incremental_binary::do_file_has_changed): New function.
	(Sized_incremental_binary::do_init_layout): New function.
	(Sized_incremental_binary::do_reserve_layout): New function.
	(Sized_input_reader::Inputs_reader): Remove.
	(Sized_input_reader::Input_entry_reader): Remove.
	(Sized_input_reader::do_arg_serial): New function.
	(Sized_input_reader::do_get_unused_symbol_count): New function.
	(Sized_input_reader::do_get_unused_symbol): New function.
	(Sized_incremental_binary::do_input_file_count): New function.
	(Sized_incremental_binary::do_get_input_reader): Change signature;
	use index instead of filename.
	(Sized_incremental_binary::section_map_): New data member.
	(Sized_incremental_binary::input_entry_readers_): New data member.
	(class Sized_incr_relobj): New class.
	(class Sized_incr_dynobj): New class.
	(make_sized_incremental_object): New function.
	(class Incremental_library): New class.
	* layout.cc (Free_list::num_lists): New static data member.
	(Free_list::num_nodes): New static data member.
	(Free_list::num_removes): New static data member.
	(Free_list::num_remove_visits): New static data member.
	(Free_list::num_allocates): New static data member.
	(Free_list::num_allocate_visits): New static data member.
	(Free_list::init): New function.
	(Free_list::remove): New function.
	(Free_list::allocate): New function.
	(Free_list::dump): New function.
	(Free_list::print_stats): New function.
	(Layout_task_runner::run): Resize output file for incremental updates.
	(Layout::Layout): Initialize new data members.
	(Layout::set_incremental_base): New function.
	(Layout::init_fixed_output_section): New function.
	(Layout::layout_eh_frame): Do not build .eh_frame_hdr section for
	incremental updates.
	(Layout::create_gold_note): Do not create gold note section for
	incremental updates.
	(Layout::set_segment_offsets): Do not recalculate RELRO alignment
	for incremental updates.
	(Layout::set_section_offsets): For incremental updates, allocate space
	from free list.
	(Layout::create_symtab_sections): Layout with offsets relative to
	start of section; for incremental updates, allocate space from free
	list.
	(Layout::create_shdrs): For incremental updates, allocate space from
	free list.
	(Layout::finish_dynamic_section): For incremental updates, do not
	check --as-needed (fixed in subsequent patch).
	* layout.h (class Free_list): New class.
	(Layout::set_incremental_base): New function.
	(Layout::incremental_base): New function.
	(Layout::init_fixed_output_section): New function.
	(Layout::allocate): New function.
	(Layout::incremental_base_): New data member.
	(Layout::free_list_): New data member.
	* main.cc (main): Print Free_list statistics.
	* object.cc (Relobj::finalize_incremental_relocs): Add
	clear_counts parameter; clear counts only when clear_counts is set.
	(Sized_relobj::Sized_relobj): Initialize new base class.
	(Sized_relobj::do_layout): Don't report special sections.
	(Sized_relobj::do_for_all_local_got_entries): New function.
	(Sized_relobj::write_local_symbols): Add symtab_off parameter; add
	symtab_off to all symbol table offsets.
	(Sized_relobj::do_get_global_symbol_counts): Add typename keyword.
	* object.h (class Got_offset_list): Move to top of file.
	(Object::Object): Allow case where input_file == NULL.
	(Object::~Object): Likewise.
	(Object::input_file): Assert that input_file != NULL.
	(Object::lock): Allow case where input_file == NULL.
	(Object::unlock): Likewise.
	(Object::is_locked): Likewise.
	(Object::token): Likewise.
	(Object::release): Likewise.
	(Object::is_incremental): New function.
	(Object::get_mtime): New function.
	(Object::for_all_local_got_entries): New function.
	(Object::clear_view_cache_marks): Allow case where input_file == NULL.
	(Object::set_is_in_system_directory): New function.
	(Object::is_in_system_directory): New function.
	(Object::do_is_incremental): New function.
	(Object::do_get_mtime): New function.
	(Object::do_for_all_local_got_entries): New function.
	(Object::is_in_system_directory_): New data member.
	(Relobj::finalize_incremental_relocs): Add clear_counts parameter.
	(class Sized_relobj_base): New class.
	(class Sized_relobj): Derive from Sized_relobj_base.
	(class Sized_relobj::Symbols): Redeclare from base class.
	(class Sized_relobj::local_got_offset_list): Remove.
	(class Sized_relobj::Output_sections): Redeclare from base class.
	(class Sized_relobj::do_for_all_local_got_entries): New function.
	(class Sized_relobj::write_local_symbols): Add offset parameter.
	(class Sized_relobj::local_symbol_offset_): Update comment.
	(class Sized_relobj::local_dynsym_offset_): Update comment.
	* options.cc (Input_arguments::add_file): Remove const.
	* options.h (Input_file_argument::Input_file_argument):
	Initialize arg_serial_ (all constructors).
	(Input_file_argument::set_arg_serial): New function.
	(Input_file_argument::arg_serial): New function.
	(Input_file_argument::arg_serial_): New data member.
	(Input_arguments::Input_arguments): Initialize file_count_.
	(Input_arguments::add_file): Remove const.
	(Input_arguments::number_of_input_files): New function.
	(Input_arguments::file_count_): New data member.
	(Command_line::number_of_input_files): Call
	Input_arguments::number_of_input_files.
	* output.cc (Output_segment_headers::Output_segment_headers):
	Set current size.
	(Output_section::Input_section::current_data_size): New function.
	(Output_section::Output_section): Initialize new data members.
	(Output_section::add_input_section): Don't do merge sections for
	an incremental link; allocate space from free list for an
	incremental update.
	(Output_section::add_output_section_data): Allocate space from
	free list for an incremental update.
	(Output_section::update_data_size): New function.
	(Output_section::set_fixed_layout): New function.
	(Output_section::reserve): New function.
	(Output_segment::set_section_addresses): Remove const.
	(Output_segment::set_section_list_addresses): Remove const; allocate
	space from free list for an incremental update.
	(Output_segment::set_offset): Adjust size of RELRO segment for an
	incremental update.
	* output.h (Output_data::current_data_size): Move here from
	child classes.
	(Output_data::pre_finalize_data_size): New function.
	(Output_data::update_data_size): New function.
	(Output_section_headers::update_data_size): new function.
	(Output_section_data_build::current_data_size): Move to Output_data.
	(Output_data_strtab::update_data_size): New function.
	(Output_section::current_data_size): Move to Output_data.
	(Output_section::set_fixed_layout): New function.
	(Output_section::has_fixed_layout): New function.
	(Output_section::reserve): New function.
	(Output_section::update_data_size): New function.
	(Output_section::has_fixed_layout_): New data member.
	(Output_section::free_list_): New data member.
	(Output_segment::set_section_addresses): Remove const.
	(Output_segment::set_section_list_addresses): Remove const.
	* plugin.cc (Sized_pluginobj::do_for_all_local_got_entries):
	New function.
	* plugin.h (Sized_pluginobj::do_for_all_local_got_entries):
	New function.
	* readsyms.cc (Read_symbols::do_read_symbols): Add library
	parameter when calling Add_symbols constructor; store argument
	serial number for members of a lib group.
	(Add_symbols::locks): Allow case where token == NULL.
	(Add_symbols::run): Report libraries denoted by --start-lib/--end-lib.
	(Read_member::~Read_member): New function.
	(Read_member::is_runnable): New function.
	(Read_member::locks): New function.
	(Read_member::run): New function.
	(Check_script::~Check_script): New function.
	(Check_script::is_runnable): New function.
	(Check_script::locks): New function.
	(Check_script::run): New function.
	(Check_library::~Check_library): New function.
	(Check_library::is_runnable): New function.
	(Check_library::locks): New function.
	(Check_library::run): New function.
	* readsyms.h (Add_symbols::Add_symbols): Add library parameter.
	(Add_symbols::library_): New data member.
	(class Read_member): New class.
	(class Check_script): New class.
	(class Check_library): New class.
	* reloc.cc (Read_relocs::is_runnable): Allow case where
	token == NULL.
	(Read_relocs::locks): Likewise.
	(Scan_relocs::locks): Likewise.
	(Relocate_task::locks): Likewise.
	(Sized_relobj::do_scan_relocs): Tell finalize_incremental_relocs
	to clear counters.
	(Sized_relobj::incremental_relocs_scan): Fix comment.
	(Sized_relobj::do_relocate): Pass output file offset to
	write_local_symbols.
	(Sized_relobj::incremental_relocs_write_reltype): Use reloc_size
	from class declaration.
	* script.cc (read_input_script): Allocate Script_info; pass
	argument serial number to report_script.
	* script.h (class Script_info): Move to incremental.h.
	* symtab.cc (Symbol_table::add_from_incrobj): New function.
	* symtab.h (Symbol_table::add_from_incrobj): New function.
	(Symbol_table::set_file_offset): New function.
2011-04-12 00:44:48 +00:00
Cary Coutant
c7975edd9e * archive.cc (Archive::include_member): Adjust call to report_object.
(Add_archive_symbols::run): Add script_info to call to
	report_archive_begin.
	(Lib_group::include_member): Adjust call to report_object.
	(Add_lib_group_symbols::run): Adjust call to report_object.
	* incremental-dump.cc (dump_incremental_inputs): Remove unnecessary
	blocks.  Add object count for script input files.
	* incremental.cc (Incremental_inputs::report_archive_begin): Add
	script_info parameter; change all callers.
	(Incremental_inputs::report_object): Add script_info parameter;
	change all callers.
	(Incremental_inputs::report_script): Store backpointer to
	incremental info entry.
	(Output_section_incremental_inputs::set_final_data_size): Record
	additional information for scripts.
	(Output_section_incremental_inputs::write_info_blocks): Likewise.
	* incremental.h (Incremental_script_entry::add_object): New function.
	(Incremental_script_entry::get_object_count): New function.
	(Incremental_script_entry::get_object): New function.
	(Incremental_script_entry::objects_): New data member; adjust
	constructor.
	(Incremental_inputs::report_archive_begin): Add script_info parameter.
	(Incremental_inputs::report_object): Add script_info parameter.
	(Incremental_inputs_reader::get_object_count): New function.
	(Incremental_inputs_reader::get_object_offset): New function.
	* options.cc (Input_arguments::add_file): Return reference to
	new input argument.
	* options.h (Input_argument::set_script_info): New function.
	(Input_argument::script_info): New function.
	(Input_argument::script_info_): New data member; adjust all
	constructors.
	(Input_file_group::add_file): Return reference to new input argument.
	(Input_file_lib::add_file): Likewise.
	(Input_arguments::add_file): Likewise.
	* readsyms.cc (Add_symbols::run): Adjust call to report_object.
	* script.cc (Parser_closure::Parser_closure): Add script_info
	parameter; adjust all callers.
	(Parser_closure::script_info): New function.
	(Parser_closure::script_info_): New data member.
	(read_input_script): Report scripts earlier to incremental info.
	(script_add_file): Set script_info in Input_argument.
	(script_add_library): Likewise.
	* script.h (Script_options::Script_info): Rewrite class.
2011-03-30 21:07:13 +00:00
Ralf Wildenhues
9b547ce683 Fix typos in gold.
gold/:
	* dwarf_reader.cc: Remove outdated comment.
	* gold-threads.cc: Fix typo in error message.
	* archive.cc: Fix typos in comments.
	* archive.h: Likewise.
	* arm-reloc-property.cc: Likewise.
	* arm-reloc-property.h: Likewise.
	* arm-reloc.def: Likewise.
	* arm.cc: Likewise.
	* attributes.h: Likewise.
	* cref.cc: Likewise.
	* ehframe.cc: Likewise.
	* fileread.h: Likewise.
	* gold.h: Likewise.
	* i386.cc: Likewise.
	* icf.cc: Likewise.
	* incremental.h: Likewise.
	* int_encoding.cc: Likewise.
	* layout.h: Likewise.
	* main.cc: Likewise.
	* merge.h: Likewise.
	* object.cc: Likewise.
	* object.h: Likewise.
	* options.cc: Likewise.
	* readsyms.cc: Likewise.
	* reduced_debug_output.cc: Likewise.
	* reloc.cc: Likewise.
	* script-sections.cc: Likewise.
	* sparc.cc: Likewise.
	* symtab.h: Likewise.
	* target-reloc.h: Likewise.
	* target.cc: Likewise.
	* target.h: Likewise.
	* timer.cc: Likewise.
	* timer.h: Likewise.
	* x86_64.cc: Likewise.
2010-12-14 19:03:30 +00:00
Cary Coutant
8c21d9d382 * debug.h (DEBUG_INCREMENTAL): New flag.
(debug_string_to_enum): Add DEBUG_INCREMENTAL).
	* gold.cc (queue_initial_tasks): Check parameters for incremental link
	mode.
	* incremental.cc (report_command_line): Ignore all forms of
	--incremental.
	* layout.cc (Layout::Layout): Check parameters for incremental link
	mode.
	* options.cc (General_options::parse_incremental): New function.
	(General_options::parse_no_incremental): New function.
	(General_options::parse_incremental_full): New function.
	(General_options::parse_incremental_update): New function.
	(General_options::incremental_mode_): New data member.
	(General_options::finalize): Check incremental_mode_.
	* options.h (General_options): Update help text for --incremental.
	Add --no-incremental, --incremental-full, --incremental-update.
	(General_options::Incremental_mode): New enum type.
	(General_options::incremental_mode): New function.
	(General_options::incremental_mode_): New data member.
	* parameters.cc (Parameters::incremental_mode_): New data member.
	(Parameters::set_options): Set incremental_mode_.
	(Parameters::set_incremental_full): New function.
	(Parameters::incremental): New function.
	(Parameters::incremental_update): New function.
	(set_parameters_incremental_full): New function.
	* parameters.h (Parameters::set_incremental_full): New function.
	(Parameters::incremental): New function.
	(Parameters::incremental_update): New function.
	(Parameters::incremental_mode_): New data member.
	(set_parameters_incremental_full): New function.
	* plugin.cc (Plugin_manager::add_input_file): Check parameters for
	incremental link mode.
	* reloc.cc (Sized_relobj::do_read_relocs): Likewise.
	(Sized_relobj::do_relocate_sections): Likewise.
	* testsuite/Makefile.am (incremental_test): Use --incremental-full
	option.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/incremental_test.sh: Filter all forms of --incremental.
2010-10-14 22:10:22 +00:00
Nick Clifton
11e3246416 * options.cc (version_script): Fix small typo in previous
whitespace tidyup.
2010-08-27 08:50:05 +00:00
Nick Clifton
ca09d69af1 * archive.cc: Formatting fixes: Remove whitespace between
typename and following asterisk.  Remove whitespace between
        function name and opening parenthesis.
        * archive.h: Likewise.
        * arm.cc: Likewise.
        * attributes.cc: Likewise.
        * attributes.h: Likewise.
        * common.cc: Likewise.
        * copy-relocs.cc: Likewise.
        * dirsearch.h: Likewise.
        * dynobj.cc: Likewise.
        * ehframe.cc: Likewise.
        * ehframe.h: Likewise.
        * expression.cc: Likewise.
        * fileread.cc: Likewise.
        * fileread.h: Likewise.
        * gc.h: Likewise.
        * gold-threads.cc: Likewise.
        * gold.cc: Likewise.
        * i386.cc: Likewise.
        * icf.h: Likewise.
        * incremental-dump.cc: Likewise.
        * incremental.cc: Likewise.
        * layout.cc: Likewise.
        * layout.h: Likewise.
        * main.cc: Likewise.
        * merge.cc: Likewise.
        * merge.h: Likewise.
        * object.cc: Likewise.
        * object.h: Likewise.
        * options.cc: Likewise.
        * options.h: Likewise.
        * output.cc: Likewise.
        * output.h: Likewise.
        * plugin.cc: Likewise.
        * plugin.h: Likewise.
        * powerpc.cc: Likewise.
        * reloc.cc: Likewise.
        * script-c.h: Likewise.
        * script-sections.cc: Likewise.
        * script.cc: Likewise.
        * stringpool.cc: Likewise.
        * symtab.cc: Likewise.
        * symtab.h: Likewise.
        * target.cc: Likewise.
        * timer.cc: Likewise.
        * timer.h: Likewise.
        * version.cc: Likewise.
        * x86_64.cc: Likewise.
2010-08-25 08:36:54 +00:00
Rafael Ávila de Espíndola
91e75c8a9c 2010-05-18 Rafael Espindola <espindola@google.com>
* options.cc (General_options::finalize): Handle -nostdlib.
	* options.h (nostdlib): New option.
	* script.cc (script_add_search_dir): Handle -nostdlib.
2010-05-18 18:08:03 +00:00
Doug Kwan
7296d93387 2010-04-07 Doug Kwan <dougkwan@google.com>
* arm.cc: Replace "endianity" with "endianness" in comments.
	(Arm_exidx_cantunwind): Ditto.
	(Arm_relobj::Arm_relobj): Initialize merge_flags_and_attribures.
	(Arm_relobj::merge_flags_and_attributes): New method.
	(Arm_relobj::merge_flags_and_attributes_): New data member.
	(Arm_exidx_cantunwind::do_fixed_endian_write): Fix formatting.
	(Arm_relobj::scan_sections_for_stubs): Ditto.
	(Arm_relobj::do_read_symbols): Check to see if we really want to
	merge processor-specific flags and attributes.  Exit early if
	an object is empty except for section names and the undefined symbol.
	(Target_arm::do_finalize_sections): Move check for ELF format to
	Arm_relobj::do_read_symbols.  Merge processor specific flags and
	attributes from a regular object only when we have determined that
	it is aapropriate.  Do not create an .ARM.attributes section in
	output if there is no regular input object.
	(Target_arm::merge_processor_specific_flags): Check
	--warn-mismatch before printing any error.
	(Target_arm::merge_object_attributes): Ditto.
	* gold.cc (queue_middle_tasks): Handle the case in which there is
	no regular object in input.
	* options.cc (General_options::parse_EB): New method.
	(General_options::parse_EL): Same.
	(General_options::General_options): Initialize endianness_.
	* options.h (-EB, -EL, -no-pipeline-knowledge, -p, --warn-mismatch):
	New options.
	(General_options::Endianness): New enum.
	(General_options::endianness): New method.
	(General_options::endianness_): New data member.
	* parameters.cc (Parameters::set_options): Check target endianness.
	(Parameters::set_target_once): Ditto.
	(Parameters::check_target_endianness): New method.
	(parameters_force_valid_target): If either -EL or -EB is specified,
	use it to define endianness of default target.
	* parameters.h (Parameters::check_target_endianness): New method
	declaration.
	* target.h (class Target): Change "endianity" to "endianness"
	in comments.
2010-04-07 21:42:22 +00:00
Rafael Ávila de Espíndola
b0193076da 2010-03-22 Rafael Espindola <espindola@google.com>
* archive.cc (Should_include): Move to archive.h.
	(should_include_member): Make it a member of Archive.
	(Lib_group): New.
	(Add_lib_group_symbols): New.
	* archive.h: Include options.h.
	(Archive_member): Moved from Archive.
	(Should_include): Moved from archive.cc.
	(Lib_group): New.
	(Add_lib_group_symbols): New.
	* dynobj.cc (do_should_include_member): New.
	* dynobj.h (do_should_include_member): New.
	* gold.cc (queue_initial_tasks): Update call to queue.
	* main.cc (main): Print lib group stats.
	* object.cc (do_should_include_member): New.
	* object.h: Include archive.h.
	(Object::should_include_member): New.
	(Object::do_should_include_member): New.
	(Sized_relobj::do_should_include_member): New.
	* options.cc (General_options::parse_start_lib): New.
	(General_options::parse_end_lib): New.
	(Input_arguments::add_file): Handle lib groups.
	(Input_arguments::start_group): Check we are not in a lib.
	(Input_arguments::start_lib): New.
	(Input_arguments::end_lib): New.
	* options.h (General_options): Add start_lib and end_lib.
	(Input_argument::lib_): New.
	(Input_argument::lib): New.
	(Input_argument::is_lib): New.
	(Input_file_lib): New.
	(Input_arguments::in_lib_): New.
	(Input_arguments::in_lib): New.
	(Input_arguments::start_lib): New.
	(Input_arguments::end_lib_): New.
	* plugin.cc (Pluginobj::get_symbol_resolution_info): Mark symbols
	in unused members as preempted.
	(Sized_pluginobj::do_should_include_member): New.
	* plugin.h (Sized_pluginobj::do_should_include_member): New.
	* readsyms.cc (Read_symbols::locks): If we are just reading a member,
	return the blocker.
	(Read_symbols::do_whole_lib_group): New.
	(Read_symbols::do_lib_group): New.
	(Read_symbols::do_read_symbols): Handle lib groups.
	(Read_symbols::get_name): Handle lib groups.
	* readsyms.h (Read_symbols): Add an archive member pointer.
	(Read_symbols::do_whole_lib_group): New.
	(Read_symbols::do_lib_group): New.
	(Read_symbols::member_): New.
	* script.cc (read_input_script): Update call to queue_soon.
2010-03-22 14:18:24 +00:00
Doug Kwan
2fd9ae7a1d 2010-02-26 Doug Kwan <dougkwan@google.com>
* arm.cc (Target_arm::scan_reloc_for_stub): Move code handling
	R_ARM_V4BX to Target_arm::scan_reloc_section_for_stubs.
	(Target_arm::scan_reloc_section_for_stubs): Instead of calling
	scan_reloc_for_stub, do all processing of R_ARM_V4BX here.
	* options.cc (General_options::General_options): Initialize member
	fix_v4bx_.
	* testsuite/Makefile.am (check_SCRIPTS): Add arm_fix_v4bx.sh
	(check_DATA): Add arm_fix_v4bx.stdout, arm_fix_v4bx_interworking.stdout
	and rm_no_fix_v4bx.stdout
	(arm_fix_v4bx.stdout, arm_fix_v4bx, arm_fix_v4bx.o,
	arm_fix_v4bx_interworking.stdout, arm_fix_v4bx_interworking,
	arm_no_fix_v4bx.stdout, arm_no_fix_v4bx): New make rules.
	(MOSTLYCLEANFILES): Add arm_fix_v4bx, arm_fix_v4bx_interworking
	and arm_no_fix_v4bx.
	* Makefile.in: Regenerate.
	* testsuite/arm_fix_v4bx.s: New file.
	* testsuite/arm_fix_v4bx.sh: Ditto.
2010-02-27 00:36:49 +00:00
Doug Kwan
9b2fd36756 2010-01-22 Viktor Kutuzov <vkutuzov@accesssoftek.com>
* gold/arm.cc (Target_arm): Updated fix_v4bx method and usage of
	Fix_v4bx enum values .
	* gold/options.h (General_options): New option definitions.
	(General_options::fix_v4bx): New method.
	(General_options::Fix_v4bx): New enum.
	* gold/options.cc (General_options::parse_fix_v4bx): New method.
	(General_options::parse_fix_v4bx_interworking): New method.
2010-01-22 19:43:00 +00:00
Ian Lance Taylor
a192ba0508 PR 10980
* options.cc (General_options::parse_section_start): New function.
	(General_options::section_start): New function.
	(General_options::General_options): Initialize all members.
	* options.h: Include <map>
	(class General_options): Add --section-start.  Add section_starts_
	member.
	* layout.cc (Layout::attach_allocated_section_to_segment): If
	--section-start was used, set the address of the segment.  Remove
	local sort_sections.
	(Layout::relaxation_loop_body): If the address of the load segment
	has been set by --section-start, don't use it.
	* output.h (Output_segment::update_flags_for_output_section): New
	function.
	* output.cc (Output_segment::add_output_section): Call
	update_flags_for_output_section.
2010-01-06 22:37:18 +00:00
Ian Lance Taylor
6affe781e4 PR 10861
* script.h (class Version_script_info): Define Language enum.
	Update declarations.  Define Glob, Exact, and Lookup types.  Add
	new fields globals_, locals_, and is_finalized_.
	* script.cc: Various formatting fixes.
	(class Parser_closure): Change language_stack_ from a vector of
	std::string to one of Version_script_info::Language.  Adjust all
	uses accordingly.
	(class Lazy_demangler): Remove.
	(struct Version_expression): Change language from std::string to
	Version_script_info::Language.
	(Version_script_info::Version_script_info): New function.
	(Version_script_info::~Version_script_info): Don't call clear.
	(Version_script_info::finalize): New function.
	(Version_script_info::build_lookup_tables): New function.
	(Version_script_info::build_expression_list_lookup): New
	function.
	(Version_script_info::get_symbol_version_helper): Rewrite to use
	lookup tables.
	(Version_script_info::print_expression_list): Adjust to use
	Version_script_info::Language.
	(script_push_lex_into_version_mode): Check that the version script
	has not been finalized.
	(version_script_push_lang): Change language string to
	Version_script_info::Language.
	* options.cc (Command_line::version_script): New function.
	* options.h (class General_options): Add finalize_dynamic_list
	function.  Change version_script from declaration to definition.
	* testsuite/ver_test_4.script: Remove duplicate def of t2_2.
	* testsuite/version_script.map: Remove duplicate def of foo.
	* testsuite/Makefile.am (ver_matching_def.so): Depend upon
	version_script.map.
	* testsuite/Makefile.in: Rebuild.
2009-12-30 22:35:49 +00:00
Sriraman Tallam
3dcad3765d * options.cc (General_options::parse_version): Allow -v to exit
without an error if there is nothing to link.
2009-12-29 23:12:15 +00:00
Sriraman Tallam
329ca2b10f 2009-12-21 Sriraman Tallam <tmsriram@google.com>
* options.cc (General_options::parse_version): Make -v continue and do
	the link like GNU ld does.
2009-12-22 01:33:43 +00:00
Ian Lance Taylor
374ad2854b Add support for -pie.
* options.h (class General_options): Add -pie and
	--pic-executable.
	(General_options::output_is_position_independent): Test -pie.
	(General_options::output_is_executable): Return true if not shared
	and not relocatable.
	(General_options::output_is_pie): Remove.
	* options.cc (General_options::finalize): Reject incompatible uses
	of -pie.
	* gold.cc (queue_middle_tasks): A -pie link is not static.
	* symtab.h (Symbol::needs_plt_entry): Return false if -pie.
	* symtab.cc (Symbol::final_value_is_known): Return false if
	output_is_position_independent.
	* layout.cc (Layout::set_segment_offsets): Start at address 0 if
	output_is_position_independent.
	* output.cc (Output_file_header::do_sized_write): Use ET_DYN if
	output_is_position_independent.
	* i386.cc (Output_data_plt_i386::do_write): Use the PIC PLT if
	output_is_position_independent.
	* testsuite/Makefile.am (check_PROGRAMS): Add basic_pie_test and
	two_file_pie_test.
	(basic_pie_test.o, basic_pie_test): New targets.
	(two_file_test_1_pie.o, two_file_test_1b_pie.o): New targets.
	(two_file_test_2_pie.o, two_file_test_main_pie.o): New targets.
	(two_file_pie_test): New target.
	* testsuite/Makefile.in: Rebuild.
	* README: Remove note saying that -pie is not supported.
2009-10-14 05:25:02 +00:00
Sriraman Tallam
032ce4e9e3 * gc.h (gc_process_relocs): Check if icf is enabled using new
function.
	* gold.cc (queue_initial_tasks): Likewise.
	(queue_middle_tasks): Likewise.
	* object.cc (do_layout): Likewise.
	* symtab.cc (is_section_folded): Likewise.
	* main.cc (main): Likewise.
	* reloc.cc (Read_relocs::run): Likewise.
	(Sized_relobj::do_scan_relocs): Likewise.
	* icf.cc (is_function_ctor_or_dtor): New function.
	(Icf::find_identical_sections): Check if function is ctor or dtor when
	safe icf is chosen.
	* options.h (General_options::icf): Change option to be an enum.
	(Icf_status): New enum.
	(icf_enabled): New method.
	(icf_safe_folding): New method.
	(set_icf_status): New method.
	(icf_status_): New variable.
	* (options.cc) (General_options::finalize): Set icf_status_.
	* testsuite/Makefile.am: Add commands to build icf_safe_test. Modify
	icf_test and icf_keep_unique_test to use the --icf enum flag.
	* testsuite/icf_safe_test.sh: New file.
	* testsuite/icf_safe_test.cc: New file.
2009-10-13 21:17:43 +00:00
Chris Demetriou
ae3b518947 2009-10-10 Chris Demetriou <cgd@google.com>
* options.h (Input_file_argument::Input_file_type): New enum.
	(Input_file_argument::is_lib_): Replace with...
	(Input_file_argument::type_): New member.
	(Input_file_argument::Input_file_argument): Take Input_file_type
	'type' rather than boolean 'is_lib' as second argument.
	(Input_file_argument::is_lib): Use type_.
	(Input_file_argument::is_searched_file): New function.
	(Input_file_argument::may_need_search): Handle is_searched_file.
	* options.cc (General_options::parse_library): Support -l:filename.
	(General_options::parse_just_symbols): Update for Input_file_argument
	changes.
	(Command_line::process): Likewise.
	* archive.cc (Archive::get_file_and_offset): Likewise.
	* plugin.cc (Plugin_manager::release_input_file): Likewise.
	* script.cc (read_script_file, script_add_file): Likewise.
	* fileread.cc (Input_file::Input_file): Likewise.
	(Input_file::will_search_for): Handle is_searched_file.
	(Input_file::open): Likewise.
	* readsyms.cc (Read_symbols::get_name): Likewise.
	* testsuite/Makefile.am (searched_file_test): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/searched_file_test.cc: New file.
	* testsuite/searched_file_test_lib.cc: New file.
2009-10-10 07:39:04 +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
Craig Silverstein
8c60465154 * object.cc (Sized_relobj::do_count): Test should_retain_symbol map.
* options.cc: Include <cerrno> and <fstream>.
	(General_options::finalize): Parse -retain-symbols-file tag.
	* options.h: New flag.
	(General_options): New method should_retain_symbol, new
	variable symbols_to_retain.
	* symtab.cc (Symbol_table::sized_finalize_symbol): Test
	should_retain_symbol map.
	* testsuite/Makefile.am (retain_symbols_file_test): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/retain_symbols_file_test.sh: New file.
2009-09-18 20:03:22 +00:00
Cary Coutant
293c13867a * options.h (Command_line::Pre_options): New class.
(Command_line::pre_options): New member.
	* options.cc (gold::options::ready_to_register): New variable.
	(One_option::register_option): Do nothing if not registering options.
	Assert if same short option registered twice.
	(General_options::General_options): Turn off option registration when
	done constructing.
	(Command_line::Pre_options::Pre_options): New constructor.
2009-08-25 01:10:48 +00:00
Ian Lance Taylor
459c9f1c5f PR 10237
* options.cc (General_options::parse_V): Set printed_version_.
	(General_options::General_options): Initialize printed_version_.
	* options.h (class General_options): Add printed_version_ field.
	* gold.cc (queue_initial_tasks): If there are no input files,
	don't give a fatal error if we printed the version information.
	(queue_middle_tasks): If using -r with a shared object, give a
	fatal error rather than an ordinary error.
2009-06-24 05:01:17 +00:00
Ian Lance Taylor
e6a307bae3 PR 10030
* yyscript.y: Parse TARGET.
	* script.cc (script_set_target): New function.
	* script-c.h (script_set_target): Declare.
	* options.cc (General_options::string_to_object_format): Rename
	from string_to_object_format in anonymous namespace.  Change
	callers.
	* options.h (class General_options): Declare
	string_to_object_format.
2009-06-23 06:39:47 +00:00
Doug Kwan
2fdd743f6d 2009-05-26 Doug Kwan <dougkwan@google.com>
* options.cc (General_options::parse_exclude_libs).  Fix a comment.
        (General_options::check_excluded_libs): Strip off directories in
        archive name before matching like GNU ld does.
        * testsuite/Makefile.am (MOSTLYCLEANFILES,
        exclude_libs_test_DEPENDENCIES): Add alt/libexclude_libs_test_3.a
        (exclude_libs_test_LDFLAGS): Add linker option
        -Wl,--exclude-libs,libexclude_libs_test_3
        (exclude_libs_test_LADD): Add alt/libexclude_libs_test_3.a as
        an explicit archive without using -l.
        (alt/libexclude_libs_test_3.a): New make rule.
        * testsuite/Makefile.in: Regenerate.
        * testsuite/exclude_libs_test.c : Declare lib3_default().
        (main): Call it.
        * exclude_libs_test.sh: Add tests for alt/exclude_libs_test_3.a.
        * exclude_libs_test_3.c: New file.
2009-05-26 22:52:56 +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
Cary Coutant
6d71b17c42 * options.cc (parse_short_option): Keep dash_z from registering itself. 2009-03-06 23:12:37 +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
Ian Lance Taylor
266d0a7434 * options.h (enum Incremental_disposition): Define.
(class General_options): Add new options: --incremental,
	--incremental_changed, --incremental_unchanged,
	--incremental_unknown.  Add incremental_disposition_ and
	implicit_incremental_ fields.
	(General_options::incremental_disposition): New function.
	(class Position_dependent_options): Add incremental_disposition
	option.
	(Position_dependent_options::copy_from_options): Set incremental
	dispositions.
	* options.cc (General_options::parse_incremental_changed): New
	function.
        (General_options::parse_incremental_unchanged): New function.
        (General_options::parse_incremental_unknown): New function.
        (General_options::General_options): Initialize new fields
	incremental_disposition_ and implicit_incremental_.
        (General_options::finalize): Check for uasge of --incremental-*
	without --incremental.
2009-02-06 23:49:43 +00:00
Christopher Faylor
3b2935444f * options.h (General_options::gc_sections): Define as a no-op for now.
(General_options::no_keep_memory): Ditto.
(General_options::Bshareable): Define.
* options.cc (General_options::finalize): Honor -Bshareable.
2009-01-23 17:05:16 +00:00
Cary Coutant
4674ecfcf4 2008-12-05 Rafael Avila de Espindola <espindola@google.com>
* options.cc (General_options::parse_plugin_opt): New.
	(General_options::add_plugin): The argument now is just the filename.
	(General_options::add_plugin_option): New.
	* options.h (plugin_opt): New.
	(add_plugin): Change argument name.
	(add_plugin_option): New.
	* plugin.cc (Plugin::load): Don't parse the plugin option.
	* plugin.h (Plugin::Plugin): Rename argument. Init filename_.
	(Plugin::add_option): New.
	(Plugin::args_): Change type.
	(Plugin::filename_): New.
	(Plugin_manager::add_plugin_option): New.
	* testsuite/Makefile.am (plugin_test_1): Use new syntax.
	* testsuite/Makefile.in: Regenerate.
2008-12-05 21:34:54 +00:00
Craig Silverstein
c82fbeee59 * options.cc (General_options::parse_dynamic_list): New function.
* options.h (General_options): New flags dynamic_list,
	dynamic_list_data, dynamic_list_cpp_new, and
	dynamic_list_cpp_typeinfo.  New variable dynamic_list_.
	(General_options::in_dynamic_list): New function.
	* script.cc (Lex::Mode): New enum DYNAMIC_LIST.
	(Lex::can_start_name): Add support for DYNAMIC_LIST mode.
	(Lex::can_continue_name): Likewise.
	(yylex): Likewise.
	(read_script_file): New parameter script_options.
	(read_dynamic_list): New function.
	(Script_options::define_dynamic_list): New function.
	(dynamic_list_keyword_parsecodes): New variable.
	(dynamic_list_keywords): New variable.
	* script.h (Script_options::define_dynamic_list): New function
	prototype.
	(read_dynamic_list): New function prototype.
	* symtab.cc (strprefix): New macro.
	(Symbol::should_add_dynsym_entry): Support dynamic_list,
	dynamic_list_data, dynamic_list_cpp_new, and
	dynamic_list_cpp_typeinfo.
	* yyscript.y (PARSING_DYNAMIC_LIST): New token.
	(dynamic_list_expr): New rule.
	(dynamic_list_nodes): Likewise.
	(dynamic_list_node): Likewise.
	* testsuite/Makefile.am (dynamic_list): New test.
	* testsuite/Makefile.in: Regenerated.
	* testsuite/dynamic_list.t: New file.
	* testsuite/dynamic_list.sh: New file.
2008-11-06 07:23:31 +00:00
Cary Coutant
4e1e25e084 * options.c (General_options::finalize): Add check for -static and
-shared.
	* gold.cc (queue_middle_tasks): Assert that list of dynamic objects
	is not empty.
2008-10-07 23:40:21 +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
Kris Van Hees
d7ab2a4705 2008-08-28 Kris Van Hees <kris.van.hees@oracle.com>
PR gold/6858
        * options.cc (General_options::finalize): Allow undefined symbols
        in shlibs if linking -shared.

        PR gold/6859
        * symtab.cc (Symbol::init_base_undefined): Mark explicitly undefined
        symbols as not needing a dynsym entry.
2008-08-28 14:51:04 +00:00
Ian Lance Taylor
af6156ef8d * options.h (class General_options): Define -n/--nmagic and
-N/--omagic.
	* options.cc (General_options::finalize): For -n/--nmagic or
	-N/--omagic, set -static.
	* layout.cc (Layout::attach_allocated_section_to_segment): If
	-N/--omagic, don't put read-only and read-write sections in
	different segments.
	(Layout::find_first_load_seg): If -N/--omagic, don't insist on
	finding a read-only segment.
	(Layout::set_segment_offsets): If -N/--omagic or -n/--nmagic,
	don't set the minimum segment alignment to the common page size,
	and don't set the file offset to the address modulo the page size.
	* script-sections.cc (Script_sections::create_segments): If
	-n/--omagic, don't put read-only and read-write sections in
	different segments.
2008-07-22 23:01:20 +00:00