binutils-gdb/gold/ChangeLog

2009-08-12  Cary Coutant  <ccoutant@google.com>

	PR 10471
	* resolve.cc (Symbol_table::resolve): Check for references from
	dynamic objects to hidden and internal symbols.
	* testsuite/Makefile.am (hidden_test.sh): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/hidden_test.sh: New script.
	* testsuite/hidden_test_1.c: New test source.
	* testsuite/hidden_test_main.c: New test source.

2009-08-11  Doug Kwan  <dougkwan@google.com>

	* arm.cc: Update comments.
	(Target_arm::do_finalize_sections): Add a special PT_ARM_EXIDX
	segment to locate the .ARM.exidx section if present.

2009-08-09  Doug Kwan  <dougkwan@google.com>

	* dynobj.h (Sized_dynobj::do_section_entsize): Revert the previous
	patch.

2009-08-07  Sriraman Tallam  <tmsriram@google.com>
	* dynobj.h (Sized_dynobj::do_section_entsize): Add return to avoid
	compiler warnings.

2009-08-06  Sriraman Tallam  <tmsriram@google.com>

	* x86_64.cc (Target_x86_64::Relocate::relocate_tls): Check for a
	valid tls_segment only for non-debug-section relocations.
	* testsuite/Makefile.am: Add gc_tls_test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/gc_tls_test.cc: New file.
	* testsuite/gc_tls_test.sh: New file.

2009-08-05  Sriraman Tallam  <tmsriram@google.com>
	
	* icf.cc: New file.
	* icf.h: New file.
	* Makefile.am (CCFILES): Add icf.cc.
	(HFILES): Add icf.h
	* Makefile.in: Regenerate.
	* dynobj.h (Sized_dynobj::do_section_entsize): New function.
	* gc.h (gc_process_relocs): Populate lists used by icf to contain
	section, symbol and addend information for the relocs.
	* gold.cc (queue_middle_tasks): Call identical code folding.
	* gold.h: Add defines for multimap.
	* layout.cc (Layout::create_symtab_sections): Add symtab as parameter
	to the call of finalize_local_symbols.
	* main.cc (main): Create object of class Icf.
	* object.cc (Sized_relobj::do_layout): Allow this function to be
	called twice during icf.
	(Sized_relobj::do_finalize_local_symbols): Fold symbols corresponding
	to sections marked as identical by icf.
	(Sized_relobj::do_section_flags): Get section_flags from Symbols_data
	when available.
	(Sized_relobj::do_section_entsize): New function.
	* object.h (Object::section_entsize): New function.
	(Object::do_section_entsize): New pure virtual function.
	(Relobj::finalize_local_symbols): Add new parameter.
	(Relobj::do_section_entsize): New function.
	* options.h (General_options::icf): New option.
	(General_options::icf_iterations): New option.
	(General_options::print_icf_sections): New option.
	* plugin.cc (Sized_pluginobj::do_section_entsize): New function.
	* plugin.h (Sized_pluginobj::do_section_entsize): New function.
	* reloc.cc (Read_relocs::run): Delay scanning relocs when doing
	icf.
	* symtab.cc (Symbol_table::is_section_folded): New function.
	(Symbol_table::sized_finalize_symbol):  Fold symbols corresponding
	to sections marked as identical by icf.
	* symtab.h (Symbol_table::set_icf): New function.
	(Symbol_table::icf): New function.
	(Symbol_table::is_section_folded): New function.
	(Symbol_table::icf_): New data member.
	* target-reloc.h (relocate_section): Ignore sections folded by icf.
	* testsuite/Makefile.am: Add commands to build icf_test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_test.sh: New file.
	* testsuite/icf_test.cc: New file.

2009-07-24  Chris Demetriou  <cgd@google.com>

	* layout.cc (is_compressible_debug_section): Fix incorrect
	comment about compressed section names.

2009-07-20  Ian Lance Taylor  <ian@airs.com>

	PR 10419
	* x86_64.cc (Target_x86_64::do_code_fill): Correct nop sequences.

2009-07-16  Ian Lance Taylor  <iant@google.com>

	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.

2009-07-09  Ian Lance Taylor  <iant@google.com>

	* merge.cc (Object_merge_map::initialize_input_to_output_map):
	Reserve space in the hash table.

2009-07-06  Mikolaj Zalewski  <mikolajz@google.com>

	* fileread.cc (File_read::get_mtime): New method.
	* fileread.h (Timespec): New structure.
	(File_read::get_mtime): New method.
	* incremental.cc (Incremental_inputs_entry_data::timestamp_usec):
	Renamed from timestamp_nsec.
	(Incremental_inputs_entry_write::timestamp_sec): Fix argument to
	Elf_Xword.
	(Incremental_inputs_entry_write::timestamp_usec): Renamed from 
	timestamp_nsec.
	(Incremental_inputs::report_archive): Save mtime; style fix. 
	(Incremental_inputs::report_obejct): Save mtime; style fix.
	(Incremental_inputs::report_script): Save mtime; style fix.
	(Incremental_inputs::finalize_inputs): Style fix.
	(Incremental_inputs::finalize): Style fix.
	(Incremental_inputs::create_input_section_data): Store inputs
	mtime.
	* incremental.h (Incremental_inputs::report_script): Add mtime
	argument.
	(Incremental_inputs::Input_info::Input_info): Intialize only one
	union member.
	(Incremental_inputs::Input_info::archive): Move to nameless
	union.
	(Incremental_inputs::Input_info::obejct): Move to nameless union.
	(Incremental_inputs::Input_info::script): Move to nameless union.
	(Incremental_inputs::mtime): New field.
	* script.cc (read_input_script): Pass file mtime to
	Incremental_input.
	* script.h (Script_info::inputs): Style fix.

2009-07-01  Ian Lance Taylor  <ian@airs.com>

	* freebsd.h (Target_freebsd::do_adjust_elf_header): Use size
	instead of 32.

2009-06-24  Ian Lance Taylor  <iant@google.com>

	PR 10156
	* layout.cc (Layout::choose_output_section): If we find an
	existing section, update the flags.
	(Layout::create_notes): New function, broken out of
	Layout::finalize.
	(Layout::finalize): Don't create note sections.
	(Layout::create_note): Don't crash if linker script discards
	section.
	(Layout::create_gold_note): Likewise.
	(Layout::create_build_id): Likewise.  Don't set
	after_input_sections on the section.
	(Layout::create_executable_stack_info): Remove target parameter.
	Change caller.
	* layout.h (class Layout): Declare create_notes.  Update
	declaration of create_executable_stack_info.
	* gold.cc (queue_middle_tasks): Call create_notes.
	* output.cc (Output_section::update_flags_for_input_section): Move
	here from output.h.  If SHF_ALLOC flag is newly set, mark address
	invalid.
	* output.h (Output_data::mark_address_invalid): New function.
	(class Output_section): Only declare, not define,
	update_flags_for_input_section.  Remove set_flags.

2009-06-24  Ian Lance Taylor  <iant@google.com>

	* script-sections.cc (Output_section_definition::
	set_section_addresses): Rename shadowing local load_address to
	laddr.

2009-06-24  Ian Lance Taylor  <iant@google.com>

	PR 10244
	* reloc.cc (relocate_sections): Skip empty relocation sections.

2009-06-23  Ian Lance Taylor  <iant@google.com>

	PR 10156
	* layout.cc (Layout::create_note): Use choose_output_section
	rather than make_output_section.

2009-06-23  Ian Lance Taylor  <iant@google.com>

	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.

2009-06-23  Ian Lance Taylor  <iant@google.com>

	PR 10219
	* layout.cc (Layout::Layout): Initialize have_stabstr_section_.
	(Layout::make_output_section): Set have_stabstr_section_ if we see
	a .stab*str section.
	(Layout::finalize): Call link_stabs_sections.
	(Layout::link_stabs_sections): New file.
	* layout.h (class Layout): Add have_stabstr_section_ field.
	Declare link_stabs_sections.

2009-06-23  Doug Kwan  <dougkwan@google.com>

	* Makefile.am (libgold_a_LIBADD): New.
	(ld_new_DEPENDENCIES, ld_new_LDADD): Remove LIBOBJS
 	* Makefile.in: Regenerate.
	* config.in (HAVE_DECL_MEMMEM, HAVE_DECL_STRNDUP): New.
	* configure: Regenerate.
	* configure.ac (AC_CHECK_DECLS): Add strndup and memmem.
	* fileread.cc: Include sys/state.h
	* gold.h: Declare memmem and strndup if found missing.
	* gold_reloc.h: Include byteswap.h if HAVE_BYTESWAP_H is defined.

2009-06-23  Ian Lance Taylor  <iant@google.com>

	* configure.ac: Call AC_CHECK_DECLS using C, not C++.
	* configure: Rebuild.

2009-06-23  Ian Lance Taylor  <iant@google.com>

	PR 10147
	* object.cc (Object::section_contents): Don't try to get a view if
	the section has length zero.
	(Object::handle_gnu_warning_section): If the section is empty, use
	the name of the section as the warning.

2009-06-23  Ian Lance Taylor  <iant@google.com>

	PR 10133
	* stringpool.h (class Stringpool_template): Add optimize_ field.
	(Stringpool_template::set_optimize): New function.
	* stringpool.cc (Stringpool_template::Stringpool_template):
	Initialize optimize_ field.
	(Stringpool_template::set_string_offsets): Test local optimize
	fild rather than parameter.
	* layout.cc (Layout::Layout): Call set_optimize on the section
	name stringpool.

2009-06-22  Ian Lance Taylor  <iant@google.com>

	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.

2009-06-22  Ian Lance Taylor  <iant@google.com>

	* script-sections.cc (Script_sections::create_segments): Don't put
	program headers in a PT_LOAD segment if -n or -N.

2009-06-22  Ian Lance Taylor  <iant@google.com>

	PR 10141
	* options.h (class General_options): Add -z lazy and -z now.  Sort
	-z options into alphabetical order.
	* layout.cc (Layout::finish_dynamic_section): Handle -z now.

2009-06-21  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::make_output_section): Call
	Target::new_output_section.
	(Layout::attach_allocated_section_to_segment): Put large section
	sections in a separate load segment with the large segment flag
	set.
	(Layout::segment_precedes): Sort large data segments after other
	load segments.
	(align_file_offset): New static function.
	(Layout::set_segment_offsets): Use align_file_offset.
	* output.h (class Output_section): Add is_small_section_ and
	is_large_section_ fields.
	(Output_section::is_small_section): New function.
	(Output_section::set_is_small_section):  New function.
	(Output_section::is_large_section): New function.
	(Output_section::set_is_large_section): New function.
	(Output_section::is_large_data_section): New function.
	(class Output_segment): Add is_large_data_segment_ field.
	(Output_segment::is_large_data_segment): New function.
	(Output_segment::set_is_large_data_segment): New function.
	* output.cc (Output_section::Output_section): Initialize new
	fields.
	(Output_segment::Output_segment): Likewise.
	(Output_segment::add_output_section): Add assertion that large
	data sections always go in large data segments.  Force small data
	sections to the end of the list of data sections.  Force small BSS
	sections to the start of the list of BSS sections.  For large BSS
	sections to the end of the list of BSS sections.
	* symtab.h (class Symbol): Declare is_common_shndx.
	(Symbol::is_defined): Check Symbol::is_common_shndx.
	(Symbol::is_common): Likewise.
	(class Symbol_table): Define enum Commons_section_type.  Update
	declarations.  Add small_commons_ and large_commons_ fields.
	* symtab.cc (Symbol::is_common_shndx): New function.
	(Symbol_table::Symbol_table): Initialize new fields.
	(Symbol_table::add_from_object): Put small and large common
	symbols in the right list.
	(Symbol_table::sized_finalized_symbol): Check
	Symbol::is_common_shndx.
	(Symbol_table::sized_write_globals): Likewise.
	* common.cc (Symbol_table::do_allocate_commons): Allocate new
	common symbol lists.  Don't call do_allocate_commons_list if the
	list is empty.
	(Symbol_table::do_allocate_commons_list): Remove is_tls
	parameter.  Add comons_section_type parameter.  Change all
	callers.  Handle small and large common symbols.
	* object.cc (Sized_relobj::do_finalize_local_symbols): Check
	Symbol::is_common_shndx.
	* resolve.cc (symbol_to_bits): Likewise.
	* target.h (Target::small_common_shndx): New function.
	(Target::small_common_section_flags): New function.
	(Target::large_common_shndx): New function.
	(Target::large_common_section_flags): New function.
	(Target::new_output_section): New function.
	(Target::Target_info): Add small_common_shndx, large_common_shndx,
	small_common_section_flags, and large_common_section_flags
	fields.
	(Target::do_new_output_section): New virtual function.
	* arm.cc (Target_arm::arm_info): Initialize new fields.
	* i386.cc (Target_i386::i386_info): Likewise.
	* powerpc.cc (Target_powerpc::powerpc_info) [all versions]:
	Likewise.
	* sparc.c (Target_sparc::sparc_info) [all versions]: Likewise.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	(Target_x86_64::do_new_output_section): New function.
	* configure.ac: Define conditional MCMODEL_MEDIUM.
	* testsuite/Makefile.am (check_PROGRAMS): Add large.
	(large_SOURCES, large_CFLAGS, large_DEPENDENCIES): Define.
	(large_LDFLAGS): Define.
	* testsuite/large.c: New file.
	* testsuite/testfile.cc (Target_test::test_target_info):
	Initialize new fields.
	* configure, testsuite/Makefile.in: Rebuild.

2009-06-05  Doug Kwan  <dougkwan@google.com>

	* Makefile.am (CCFILES): Add target.cc.
	* Makefile.in: Regenerate. 
	* i386.cc (class Target_i386): Define new virtual method to
	override do_is_local_label_name in parent.
	* object.cc (Sized_relobj::do_count_local_symbols): Discard
	local symbols if --discard-locals or -X is given.
	* options.h (class General_options): Declare new options
	'--discard-locals' and '-X' for discarding locals.
	* target.h (class Target): Define new methods is_local_label_name.
	Declare new virtual method do_is_local_label_name.
	* target.cc: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add discard_locals_test.
	(check_SCRIPTS): Add discard_locals_test.sh.
	(check_DATA): Add discard_local_tests.syms.
	(discard_locals_test_SOURCES, discard_locals_test_LDFLAGS): Define.
	(discard_local_tests.syms, discard_locals_test.o): New make rules.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/discard_locals_test.c: New file.
	* testsuite/discard_locals_test.sh: Same.

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.

2009-06-04  Doug Kwan  <dougkwan@google.com>

	* layout.cc (Layout::section_name_mapping): Add mapping for
	special ARM sections.

2009-06-03  Doug Kwan  <dougkwan@google.com>

	* arm.cc (utils::sign_extend): Reverse test in gold_assert.
	(utils::has_overflow): Same.

2009-06-03  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::section_name_mapping): New array, replacing
	Layout::linkonce_mapping.
	(Layout::section_name_mapping_count): New variable, replacing
	Layout::linkonce_mapping_count.
	(Layout::linkonce_output_name): Remove.
	(Layout::output_section_name): Rewrite.
	* layout.h (class Layout): Rename Linkonce_mapping to
	Section_name_mapping, linkonce_mapping to section_name_mapping,
	linkonce_mapping_count to section_name_mapping_count.  Don't
	declare linkonce_output_name.

2009-06-03  Doug Kwan  <dougkwan@google.com>

	* gold/arm.cc (namespace utils): New.
	(Target_arm::reloc_is_non_pic): Define new method.
	(class Arm_relocate_functions): New.
	(Target_arm::Relocate::relocate): Handle relocation types used by
	Android.

2009-06-03  Ian Lance Taylor  <iant@google.com>

	* arm.cc (Target_arm::scan::global): Use || instead of |.

2009-06-02  Doug Kwan  <dougkwan@google.com>

	* gold/arm.cc (Target_arm::Scan::Scan):  Initialize
	issued_non_pic_error_.
	(class Target_arm::Scan): Declare new method check_non_pic.
	Define new method symbol_needs_plt_entry.
	Declare new data member issued_non_pic_error_.
	(class Target_arm::Relocate): Declare new method
	should_apply_static_reloc.
	(Target_arm::may_need_copy_reloc): Handle STT_ARM_TFUNC.
	(Target_arm::Scan::check_non_pic): Define new method.
	(Target_arm::Scan::local): Handle a small subset of reloc types used
	by Android.
	(Target_arm::Scan::local): Same.
	(Target_arm::Relocate::should_apply_statci_reloc): Define new method.

2009-05-31  Mikolaj Zalewski  <mikolajz@google.com>

	* incremental.cc (Incremental_inputs::report_command_line): Filter
	out --incremental-* options.

2009-05-29  Doug Kwan  <dougkwan@google.com>

	* gold/arm.cc (Output_data_plt_arm): Forward declaration for new
	template class.
	(class Target_arm): Update comment.
	(Target_arm::Target_arm): Initialize new data members GOT_,
	PLT_, GOT_PLT_, REL_DYN_, COPY_RELOCS_ and DYNBSS_.
	Declare new methods Target_arm::got_section, Target_arm::make_plt_entry
	and Target_arm::rel_dyn_section.
	Declare new_enum Target_arm::Got_type.
	Declare new data members GOT_, PLT_, GOT_PLT_, REL_DYN_, COPY_RELOCS_
	and DYNBSS_.
	Update commments for member do_dynsym_value.
	(Target_arm::got_size, Target_arm::plt_section,
	Target_arm::may_need_copy_reloc and Target_arm::copy_reloc): Define
	new methods inside class defintion.
	(Target_arm::got_section): Define new method.
	(Target_arm::rel_dyn_section): Same.
	(Output_data_plt_arm): New template class.
	(Output_data_plt_arm::Output_data_plt_arm): Define constructor.
	(Output_data_plt_arm:do_adjust_output_section): Define new method.
	(Output_data_plt_arm::add_entry): Same.
	(Output_data_plt_arm::first_plt_entry): Define new
	static data member for PLT instruction template.
	(Output_data_plt_arm::plt_entry): Same.
	(Output_data_plt_arm::do_write): Define new method.
	(Target_arm::make_plt_entry): Same.
	(Target_arm::do_finalize_sections): Same.
	(Target_arm::do_dynsym_value): Same.

2009-05-28  Doug Kwan  <dougkwan@google.com>

	* Makefile.am (TARGETSOURCES): Add arm.cc.
	(ALL_TARGETOBJECTS): Add arm.$(OBJEXT)
	* Makefile.in: Regenerate.
	* arm.cc: New file.
	* configure.tgt: Add armbe*-*-*, armeb*-*-* and arm*-*-* targets.

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  Nick Clifton  <nickc@redhat.com>

	* po/id.po: New Indonesian translation.
	* po/gold.pot: Updated template file.

2009-05-22  Sriraman Tallam  <tmsriram@google.com>

	* testsuite/Makefile.am: Add -ffunction-sections to compile 
	gc_comdat_test files.  Add -Wl,--gc-sections to build
	gc_comdat_test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/gc_comdat_test.sh: Fix the condition around grep.

2009-05-21  Sriraman Tallam  <tmsriram@google.com>

	* object.cc (Sized_relobj::map_to_kept_section): Return NULL if the
	kept comdat section was garbage collected.
	* testsuite/Makefile.am: Add test gc_comdat_test.sh.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/gc_comdat_test.sh: New file.
	* testsuite/gc_comdat_test_1.cc: New file.
	* testsuite/gc_comdat_test_2.cc: New file.

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.

2009-05-15  Ian Lance Taylor  <iant@google.com>

	* configure.ac: Check for declarations for cases where libiberty.h
	checks HAVE_DECL_xxx.
	* configure, config.in: Rebuild.

2009-05-15  Mikolaj Zalewski  <mikolajz@google.com>

	* gold.h (Incremental_argument_list): Remove (invalid) forward
	declaration.
	* incremental.cc (Incremental_inputs::report_achive): New method.
	(Incremental_inputs::report_object): New method.
	(Incremental_inputs::report_script): New method.
	(Incremental_inputs::finalize_inputs): New method.
	(Incremental_inputs::finalize): Call finalize_inputs().
	(Incremental_inputs::sized_create_incremental_inputs_section_data):
	Create inputs entries.
	* incremental.h (Incremental_input_type): New enum.
	(Incremental_inputs::Incremental_input): Initialize new fields.
	(Incremental_inputs::report_inputs): New method.
	(Incremental_inputs::report_achive): New method.
	(Incremental_inputs::report_object): New method.
	(Incremental_inputs::report_script): New method.
	(Incremental_inputs::finalize_inputs): New method.
	(Incremental_inputs::Input_info): New struct.
	(Incremental_inputs::Input_info_map): New typedef.
	(Incremental_inputs::lock_): New field.
	(Incremental_inputs::Inputs_): New field.
	(Incremental_inputs::Inputs_map): New field.
	* main.cc (main): Call Incremental_input::report_inputs.
	* options.h (Input_argument_list): Typedef moved from
	Input_arguments.
	(Input_file_group::Files): Remove, use ::Input_argument_list.
	(Input_file_group::Input_argument_list): Remove, use
	::Input_argument_list.
	* plugin.cc (Plugin_manager::add_input_file): Add error in
	incremental build.
	* read_syms.cc (do_read_syms): Call Incremental_input::report_*
	functions.
	* script.cc (read_input_script): Call
	Incremental_input::report_script.
	* script.h (Script_info): New class.

2009-04-27  Ian Lance Taylor  <iant@google.com>

	* x86_64.cc (do_adjust_output_section): Set entsize to
	plt_entry_size.

2009-04-23  Elliott Hughes  <enh@google.com>

	* output.cc (Output_file::close): After short writes, continue
	writing from the correct offset in the buffer being written.

2009-04-23  Chris Demetriou  <cgd@google.com>

	* configure.ac (HAVE_TR1_UNORDERED_MAP_REHASH): New define.
	* configure: Regenerate.
	* config.in: Regenerate.
	* gold.h: Avoid std::tr1::unordered_map and std::tr1::unordered_set
	if HAVE_TR1_UNORDERED_MAP_REHASH is not defined.

2009-04-21  Mikolaj Zalewski  <mikolajz@google.com>

	* incremental.cc (Incremental_inputs_header_data): Renamed from
	Incremental_input_header_data.
	(Incremental_inputs_header_data::data_size): New field.
	(Incremental_inputs_header_data::put_input_file_count): Renamed
	from input_file_count.
	(Incremental_inputs_header_data::put_command_line_offset): Renamed
	from command_line_offset.
	(Incremental_inputs_header_data::put_reserved): Renamed from
	put_reserved.
	(Incremental_inputs_entry_data): Renamed from
	Incremental_input_entry_data.
	(Incremental_inputs_entry_data::data_size): New field.
	(Incremental_inputs::report_command_line): New method.
	(Incremental_inputs::finalize): New method.
	(Incremental_inputs::create_incremental_inputs_data): New method.
	(Incremental_inputs::sized_create_incremental_inputs_data): New method.
	* incremental.h: New file.
	* layout.cc (Layout::Layout): Handle new incremental_inputs_.
       (Layout::finalize): Create incremental inputs section in
	incremental builds.
       (Layout::create_incremental_info_sections): New method.
	* layout.h (Layout::incremental_inputs): New method.
       (Layout::create_incremental_info_sections): New method.
       (Layout::incremental_inputs_): New field.
	* main.cc (main): Notify Incremental_input of the command line.

2009-04-01  Ian Lance Taylor  <iant@google.com>
	    Mikolaj Zalewski  <mikolajz@google.com>

	* gold.h (reserve_unordered_map): Define, three versions, one for
	each version of Unordered_map.
	* layout.cc (Layout::Layout): Remove options parameter.  Add
	number_of_input_files parameter.  Don't initialize options_.
	Initialize number_of_input_files_ and resized_signatures_.  Move
	sections_are_attached_.
	(Layout::layout_group): Reserve space for group_signatures_.
	(Layout::find_or_add_kept_section): Change name parameter to be a
	reference.  Resize signatures_ map when it gets large enough.
	(Layout::layout_eh_frame): Use parameters->options() instead of
	this->options_.
	(Layout::make_output_section): Likewise.
	(Layout::attach_allocated_section_to_segment): Likewise.
	(Layout::finalize, Layout::create_executable_stack): Likewise.
	(Layout::set_segment_offsets, Layout::create_interp): Likewise.
	(Layout::finish_dynamic_section, Layout::write_binary): Likewise.
	* layout.h (class Layout): Update declarations.  Remove options_
	field.  Add number_of_input_files_ and resized_signatures_
	fields.  Move sections_are_attached_ field.
	* main.cc (main): Pass number of input files to Layout
	constructor.  Don't pass options.

2009-03-30  Ian Lance Taylor  <iant@google.com>

	* ffsll.c (ffsll): Correct implementation.

2009-03-27  Ian Lance Taylor  <iant@google.com>

	* ffsll.c: New file.
	* configure.ac: Call AC_REPLACE_FUNCS on ffsll.
	* gold.h (ffsll): Declare if HAVE_FFSLL is not defined.
	* ftruncate.c (ftruncate): Declare before definition.
	* mremap.c (mremap): Likewise.
	* pread.c (pread): Likewise.
	* configure, Makefile.in, config.in: Rebuild.

	* mremap.c: New file.
	* configure.ac: Call AC_REPLACE_FUNCS on mremap.
	* gold.h (MREMAP_MAYMOVE): Define if HAVE_MREMAP is not defined.
	(mremap): Declare if HAVE_MREMAP is not defined.
	* configure, Makefile.in, config.in: Rebuild.

2009-03-27  Cary Coutant  <ccoutant@google.com>

	* powerpc.cc (Target_powerpc::check_non_pic): Assert that output is
	position independent.
	* sparc.cc (Target_sparc::check_non_pic): Likewise.
	* x86_64.cc (Target_x86_64::check_non_pic): Likewise.

2009-03-24  Cary Coutant  <ccoutant@google.com>

	* symtab.h (needs_plt_entry): Check for unsatisfied reference from
	an executable.
	(needs_dynamic_reloc): Likewise.

2009-03-24  Ian Lance Taylor  <iant@google.com>

	* yyscript.y (file_cmd): Recognize EXTERN.
	(extern_name_list, extern_name_list_body): New nonterminals.
	* script.cc (script_add_extern): Define.
	* script-c.h (script_add_extern): Declare.

2009-03-24  Rafael Avila de Espindola  <espindola@google.com>

	* object.cc (is_elf_object): Define.
	* object.h (is_elf_object): Declare.
	* archive.cc (Archive::get_elf_object_for_member): Call
	is_elf_object.
	* readsyms.cc (Read_symbols::do_read_symbols): Likewise.

2009-03-24  Elliott Hughes  <enh@google.com>

	* output.cc (Output_file::map_anonymous): Define.
	(Output_file::map): Use map_anonymous.  If the regular mmap fails,
	try an anonymous one.  Report the size if the mmap fails.
	* output.h (class Output_file): Declare map_anonymous.

2009-03-24  Ian Lance Taylor  <iant@google.com>

	* target-select.cc (instantiate_target): Don't acquire the lock if
	the instantiated_target_ field has already been set.

2009-03-23  Ian Lance Taylor  <iant@google.com>

	* gold-threads.h (class Initialize_lock): Define.
	* gold-threads.cc (class Initialize_lock_once): Define.
	(initialize_lock_control): New static variable.
	(initialize_lock_pointer): New static variable.
	(initialize_lock_once): New static function.
	(Initialize_lock::Initialize_lock): Define.
	(Initialize_lock::initialize): Define.
	* target-select.h: Include "gold-threads.h".
	(class Target_selector): Add lock_ and initialize_lock_ fields.
	Don't define instantiate_target, just declare it.
	* target-select.cc (Target_selector::Target_selector): Initialize
	new fields.
	(Target_selector::instantiate_target): Define.
	* descriptors.h: Include "gold-threads.h".
	(class Descriptors): Add initialize_lock_ field.
	* descriptors.cc (Descriptors::Descriptors): Initialize new
	field.
	(Descriptors::open): Use initialize_lock_ field
	* errors.h (class Errors): Add initialize_lock_ field.
	* errors.cc (Errors::Errors): Initialize new field.
	(Errors::initialize_lock): Use initialize_lock_ field.
	* powerpc.cc (class Target_selector_powerpc): Remove
	instantiated_target_ field.  In do_recognize call
	instantiate_target rather than do_instantiate_target.  In
	do_instantiate_target just allocate a new target.
	* sparc.cc (class Target_selector_sparc): Likewise.

	* freebsd.h: New file.
	* i386.cc: Include "freebsd.h".
	(Target_i386): Derive from Target_freebsd rather than
	Sized_target.
	(Target_selector_i386): Derive from Target_selector_freebsd rather
	than Target_selector.
	* x86_64.cc: Include "freebsd.h".
	(Target_x86_64): Derive from Target_freebsd rather than
	Sized_target.
	(Target_selector_x86_64): Derive from Target_selector_freebsd
	rather than Target_selector.
	* target.h (class Target): Add adjust_elf_header and
	do_adjust_elf_header.
	* output.cc (Output_file_header:: do_sized_write): Call target
	adjust_elf_header routine.
	* configure.tgt: Set targ_osabi.
	* configure.ac: Define GOLD_DEFAULT_OSABI.
	* parameters.cc (Parameters::default_target): Pass
	GOLD_DEFAULT_OSABI to select_target.
	* target-select.h (class Target_selector): Make instantiate_target
	protected rather than private.
	* Makefile.am (HFILES): Add freebsd.h.
	* configure, Makefile.in, config.in: Rebuild.

	* merge.cc (do_add_input_section): Correct pend value.  Change
	message about last entry not being null terminated from error to
	warning.

2009-03-20  Mikolaj Zalewski  <mikolajz@google.com>

	* incremental.cc: New file.
	* Makefile.am (CCFILES): Add incremental.cc.
	* Makefile.in: Rebuild.

2009-03-19  Paul Pluzhnikov  <ppluzhnikov@google.com>

	* layout.cc (Layout::output_section_name): Preserve names
	of '.note.' sections.
	
2009-03-19  Ian Lance Taylor  <iant@google.com>

	* descriptors.cc (Descriptors::open): Check that the options are
	valid before using them.

2009-03-18  Ian Lance Taylor  <iant@google.com>

	* script-sections.h: Include <list>.
	(class Script_sections): Change Sections_elements from std::vector
	to std::list.  Typedef public Elements_iterator.  Add
	orphan_section_placement_, data_segment_align_start_, and
	saw_data_segment_align_ fields.  Remove data_segment_align_index_
	field.
	* script-sections.cc (class Orphan_section_placement): New class.
	(class Sections_element): Add virtual functions is_relro and
	orphan_section_init.  Remove virtual function place_orphan_here.
	(class Output_section_definition): Add is_relro and
	orphan_section_init.  Remove place_orphan_here.
	(class Orphan_output_section): Likewise.
	(Script_sections::Script_sections): Update for field changes.
	(Script_sections::data_segment_align): Set saw_data_segment_align_
	and data_segment_align_start_, not data_segment_align_index.
	(Script_sections::data_segment_relro_end): Check
	saw_data_segment_align_.  Use data_segment_align_start_ rather
	than data_segment_align_index_.
	(Script_sections::place_orphan): Rewrite to use
	Orphan_section_placement.

2009-03-17  Ian Lance Taylor  <iant@google.com>

	* archive.cc (Archive::add_symbols): Check for a version attached
	to the symbol name in the archive map.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_11.
	(ver_test_11_SOURCES, ver_test_11_DEPENDENCIES): Define.
	(ver_test_11_LDFLAGS, ver_test_11_LDADD): Define.
	(ver_test_11.a): New target.
	* testsuite/Makefile.in: Rebuild.

	* configure.ac: Check for chsize and posix_fallocate.  Replace
	ftruncate.
	* ftruncate.c: New file, from gnulib.
	* output.cc (posix_fallocate): Define dummy version if not
	HAVE_POSIX_FALLOCATE.
	(Output_file::map): Call posix_fallocate rather than lseek and
	write.
	* gold.h (ftruncate): Declare if not HAVE_FTRUNCATE.
	* configure, Makefile.in, config.in: Rebuild.

2009-03-17  Paul Pluzhnikov  <ppluzhnikov@google.com>
	
	* layout.h (Layout::create_note): Add section_name parameter.
	* layout.cc (Layout::create_note): Likewise.
	(Layout::create_build_id, Layout::create_gold_note): Fix callers.
	
2009-03-17  Ian Lance Taylor  <iant@google.com>

	* descriptors.cc: Include "options.h".
	(FD_CLOEXEC, O_CLOEXEC): Define if not defined.
	(Descriptors::open): Always use O_CLOEXEC when opening a new
	descriptor.  If we have a plugin, and O_CLOEXEC was not defined,
	then set FD_CLOEXEC.

	* sparc.cc (class Target_sparc): Add has_got_section.
	(Target_sparc::Scan::global): If we see _GLOBAL_OFFSET_TABLE_,
	make sure we have a GOT section.

	* sparc.cc (optimize_tls_reloc): Recognize R_SPARC_TLS_IE_ADD.
	(Target_sparc::Scan::local): Likewise.
	(Target_sparc::Scan::global): Likewise.
	(Target_sparc::Relocate::relocate): Likewise.
	(Target_sparc::Relocate::relocate_tls): Likewise.

	* symtab.cc (Symbol_table::define_default_version): New function,
	broken out of add_from_object.
	(Symbol_table::add_from_object): Call define_default_version.
	(Symbol_table::define_special_symbol): Add resolve_oldsym
	parameter.  Change all callers.  If the version for a symbol comes
	from a version script, resolve it with the symbol with the same
	name with no version.  Also add the symbol without a version if
	appropriate.
	(do_define_in_output_data): If resolving with oldsym, don't delete
	sym.
	(do_define_in_output_segment): Likewise.
	(do_define_as_constant): Likewise.
	* symtab.h (class Symbol_table): Update declarations.

2009-03-13  Ian Lance Taylor  <iant@google.com>

	* 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.

	* fileread.cc (Input_file::open): Remove options parameter.
	Change all callers.
	(Input_file::open_binary): Likewise.
	* script.cc (read_input_script): Likewise.
	* readsyms.h (class Read_symbols): Remove options_ field.  Remove
	options parameter from constructor.  Change all callers.
	(class Read_script): Likewise.
	* fileread.h (class Input_file): Update declarations.
	* script.h (read_input_script): Update declaration.

2009-03-10  Nick Clifton  <nickc@redhat.com>

	* po/es.po: New Spanish translation.

2009-03-06  Cary Coutant  <ccoutant@google.com>

	* options.cc (parse_short_option): Keep dash_z from registering itself.

2009-03-03  Ian Lance Taylor  <iant@google.com>

	PR 9918
	* target-reloc.h (relocate_section): Pass output_section to
	relocate.
	* i386.cc (Target_i386::should_apply_static_reloc): Add
	output_section parameter.  Change all callers.
	(Target_i386::Relocate::relocate): Add output_section parameter.
	* x86_64.cc (Target_x86_64::Relocate::relocate): Likewise.
	* sparc.cc (Target_sparc::Relocate::relocate): Likewise.
	* powerpc.cc (Target_powerpc::Relocate::relocate): Likewise.
	* testsuite/two_file_shared.sh: New script.
	* testsuite/Makefile.am (check_SCRIPTS): Add two_file_shared.sh.
	(check_DATA): Add two_file_shared.dbg.
	(two_file_shared.dbg): New target.
	* testsuite/Makefile.in: Rebuild.

2009-03-01  Ian Lance Taylor  <iant@google.com>

	* configure.ac: Check for byteswap.h.
	* configure: Rebuild.
	* config.in: Rebuild.

2009-03-01  Mikolaj Zalewski  <mikolajz@google.com>

	* 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.

2009-02-28  Ian Lance Taylor  <iant@google.com>

	* README: --gc-sections and map files are now supported.  Document
	some build requirements.

	PR 6992
	* symtab.cc (Symbol_table::sized_write_section_symbol): In a
	relocatable link set the value of the section symbol to zero.
	* object.cc (Sized_relobj::do_finalize_local_symbols): In a
	relocatable link don't include the section address in the local
	symbol value.

2009-02-27  Ian Lance Taylor  <iant@google.com>

	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.

	PR 5990
	* descriptors.h (Open_descriptor): Add is_on_stack field.
	* descriptors.cc (Descriptors::open): If the descriptor is on the
	top of the stack, remove it.  Initialize is_on_stack field.
	(Descriptors::release): Only add pod to stack if it is not on the
	stack already.
	(Descriptors::close_some_descriptor): Clear stack_next and
	is_on_stack fields.

	PR 7091
	* output.cc (Output_section::find_starting_output_address): Rename
	from starting_output_address; add PADDR parameter; change return
	type.
	* output.h (class Output_section): Declare
	find_starting_output_address instead of starting_output_address.
	* object.cc (Sized_relobj::do_finalize_local_symbols): Handle a
	section symbol for which we can't find a merge section.

	PR 9836
	* symtab.cc (Symbol_table::add_from_object): If the visibility is
	hidden or internal, force the symbol to be local.
	* resolve.cc (Symbol::override_visibility): Define.
	(Symbol::override_base): Use override_visibility.
	(Symbol_table::resolve): Likewise.
	(Symbol::override_base_with_special): Likewise.
	(Symbol_table::override_with_special): If the visibility is hidden
	or internal, force the symbol to be local.
	* symtab.h (class Symbol): Add set_visibility and
	override_visibility.
	* testsuite/ver_test_1.sh: New file.
	* testsuite/Makefile.am (check_SCRIPTS): Add ver_test_1.sh.
	(check_DATA): Add ver_test_1.syms.
	(ver_test_1.syms): New target.
	* testsuite/Makefile.in: Rebuild.

2009-02-25  Cary Coutant  <ccoutant@google.com>

	* layout.cc (Layout::choose_output_section): Don't rename sections
	when using a linker script that has a SECTIONS clause.
	* Makefile.in: Regenerate.

	* testsuite/Makefile.am (script_test_5.sh): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/script_test_5.cc: New file.
	* testsuite/script_test_5.sh: New file.
	* testsuite/script_test_5.t: New file.

2009-02-13  Rafael Avila de Espindola  <espindola@google.com>

	* 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.

2009-02-06  Ian Lance Taylor  <iant@google.com>

	* object.cc (Sized_relobj::do_layout): Make info message start
	with lower case letter.

2009-02-06  Mikolaj Zalewski  <mikolajz@google.com>

	* binary.cc: Fix file comment.

	* 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  Chris Demetriou  <cgd@google.com>

	* gold.h (gold_undefined_symbol): Change to take only a Symbol
	pointer and to report location as the file name associated with
	the symbol.
	(gold_undefined_symbol_at_location): New function to replace the
	old gold_undefined_symbol functionality.
	* target-reloc.h (relocate_section): Update to use
	gold_undefined_symbol_at_location.
	* symtab.cc (Symbol_table::warn_about_undefined_dynobj_symbol):
	Call gold_undefined_symbol function rather than gold_error.
	* errors.h (Errors::undefined_symbol): Take location as a
	string, rather than calculating it from a relocation.
	* errors.cc (Errors::fatal): Print "fatal error:" before the
	formatted message.
	(Errors::error, Errors::error_at_location): Print "error: "
	before the formatted message.
	(Errors::undefined_symbol): Take location as a string, rather
	than calculating it from a relocation.
	(gold_undefined_symbol_at_location): New function akin to
	old gold_undefined_symbol, calculates location from relocation.
	(gold_undefined_symbol): Change to take only a Symbol pointer
	and to report location as the file name associated with the symbol.
	* testsuite/debug_msg.sh: Update for changed error messages.
	* testsuite/undef_symbol.sh: Likewise.

2009-02-04  Duncan Sands  <baldrick@free.fr>

	PR 9812
	* reduced_debug_output.h
	(Output_reduced_debug_abbrev_section::failed): Use format for
	gold_warning.
	(Output_reduced_debug_info_section::faild): Likewise.

2009-01-31  Mikolaj Zalewski  <mikolajz@google.com>

	* script.cc (Lazy_demangler): New class.
        (Version_script_info::get_symbol_version_helper): Demangle a
	symbol only once.

2009-01-29  Cary Coutant  <ccoutant@google.com>

	* i386.cc (Target_i386::Relocate::relocate): Recognize non-PIC calls
	to __tls_get_addr.
	* x86_64.cc (Target_x86_64::Relocate::relocate): Likewise.

2009-01-28  Ian Lance Taylor  <iant@google.com>

	* version.cc (version_string): Bump to 1.9.

	* gold.h: Include <cstring> and <stdint.h>.
	* version.cc: Include <cstdio>.
	* object.cc (Sized_relobj::do_layout): Initialize gc_sd to avoid a
	warning.
	* reduced_debug_output.cc (insert_into_vector): Rename from
	Insert_into_vector; change all callers.  Use Swap_unaligned to
	avoid aliasing issue; remove union since it is unnecessary.

2009-01-27  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.

2009-01-20  Chris Faylor <me.sourceware@sourceware.org>

	* 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.

2009-01-20  Andreas Schwab  <schwab@suse.de>

	* powerpc.cc (Powerpc_relocate_functions::rel16_ha): Don't try to
	read the value in the contents, since we don't use it.  Use the
	template endianness when writing.
	(Relocate::relocate): Use it for R_PPC_REL16_HA.

2009-01-19  Andreas Schwab  <schwab@suse.de>

	* configure.tgt (powerpc64-*): Fix targ_obj.

2009-01-15  Ian Lance Taylor  <iant@google.com>

	* object.cc (Sized_relobj::write_local_symbols): Don't write out
	local symbols when stripping all symbols.

2009-01-14  Cary Coutant  <ccoutant@google.com>

	* output.cc (Output_reloc): Add explicit instantiations.

2009-01-14  Cary Coutant  <ccoutant@google.com>

	* archive.cc (Archive::get_elf_object_for_member): Remove call
	to File_read::claim_for_plugin.
	* descriptors.cc (Descriptors::open): Remove reference to
	is_claimed.
	(Descriptors::claim_for_plugin): Remove.
	* descriptors.h (Descriptors::claim_for_plugin): Remove.
	(Descriptors::is_claimed): Remove.
	(claim_descriptor_for_plugin): Remove.
	* fileread.cc (File_read::claim_for_plugin): Remove.
	* fileread.h (File_read::claim_for_plugin): Remove.
	(File_read::descriptor): Reopen descriptor if necessary.
	* plugin.cc  (Plugin::load): Add two new APIs to transfer vector.
	(Plugin_manager::all_symbols_read): Add task parameter. Change
	all callers.
	(Plugin_manager::get_input_file): New function.
	(Plugin_manager::release_input_file): New function.
	(Pluginobj::Pluginobj): Add filesize parameter and initialize
	corresponding data member.
	(Sized_pluginobj::Sized_pluginobj): Add filesize parameter
	and pass to base constructor. Change all callers.
	(get_input_file, release_input_file): New functions.
	(make_sized_plugin_object): Add filesize parameter. Change all callers.
	* plugin.h (Plugin_manager::Plugin_manager): Initialize task_ member.
	(Plugin_manager::all_symbols_read): Add task parameter.
	(Plugin_manager::get_input_file): New function.
	(Plugin_manager::release_input_file): New function.
	(Plugin_manager::task_): New data member.
	(Pluginobj::Pluginobj): Add filesize parameter.
	(Pluginobj::filename): New function.
	(Pluginobj::descriptor): New function.
	(Pluginobj::filesize): New function.
	(Pluginobj::filesize_): New data member.
	(Sized_pluginobj::Sized_pluginobj): Add filesize parameter.
	* readsyms.cc (Read_symbols::do_read_symbols): Remove call to
	File_read::claim_for_plugin; use Object::unlock to unlock the file.

	* testsuite/Makefile.am (plugin_test_4): New test case for plugins
	with archive libraries.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_test.c (struct sym_info): New type.
	(get_input_file, release_input_file): New static variables.
	(onload): Capture new transfer vector entries.
	(claim_file_hook): Stop reading at end of file according to filesize.
	Factor out parsing of readelf output into separate function.
	(all_symbols_read_hook): Exercise get_input_file and release_input_file
	APIs and get the source file name from the symbol table.  Convert
	source file name to corresponding object file name.  Print info
	message when adding new input files.
	(parse_readelf_line): New function.
	* testsuite/plugin_test_1.sh: Add checks for new info messages.
	* testsuite/plugin_test_2.sh: Likewise.
	* testsuite/plugin_test_3.sh: Likewise.
	* testsuite/plugin_test_4.sh: New test case.

2009-01-07  Ian Lance Taylor  <iant@google.com>

	* version.cc (version_string): Bump to 1.8.

2008-12-23  Cary Coutant  <ccoutant@google.com>

	* gold.cc (gold_exit): Call plugin cleanup handlers on exit.
	* plugin.cc (Plugin_manager::finish): Rename as
	layout_deferred_objects.  Move cleanup to separate function.
	(Plugin_manager::cleanup): New function.
	(Plugin_finish::run): Call layout_deferred_objects and cleanup
	separately.
	* plugin.h (Plugin_manager::finish): Rename as
	layout_deferred_objects.
	(Plugin_manager::cleanup): New function.
	(Plugin_manager::cleanup_done): New field.

2008-12-23  Cary Coutant  <ccoutant@google.com>

	* plugin.cc (is_visible_from_outside): New function.
	(Pluginobj::get_symbol_resolution_info): Call is_visible_from_outside
	so we don't return "IR only" status for exported symbols or -r links.

	* testsuite/Makefile.am (plugin_test_3): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_test_3.sh: New file.

2008-12-22  Cary Coutant  <ccoutant@google.com>

	* 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.

2008-12-17  Ian Lance Taylor  <iant@google.com>

	* options.h (class General_options): Add --no case for
	--export-dynamic.

2008-12-16  Cary Coutant  <ccoutant@google.com>

	* plugin.cc (Plugin::load): Move LDPT_MESSAGE to front of transfer
	vector.
	(Plugin_manager::claim_file): Create plugin object even if
	plugin did not call the add_symbols callback.
	(Plugin_obj::get_symbol_resolution_info): Guard against plugin
	asking for more symbols than were added.
	* testsuite/Makefile.am (plugin_test_1): Add test case with
	no global symbols.
	(empty.syms): New target.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_test.c (claim_file_hook): Add new debug
	message. Don't call add_symbols if no globals.
	(all_symbols_read_hook): Don't provide replacement for empty
	claimed file.

2008-12-12  Ian Lance Taylor  <iant@google.com>

	* target-reloc.h (Default_scan_relocatable_relocs): Only discard
	r_type == 0 for a local symbol with r_sym == 0.
	(scan_relocatable_relocs): Pass r_sym to
	local_non_section_strategy.
	* reloc.cc (Emit_relocs_strategy::local_non_section_strategy): Add
	r_sym parameter.

	* configure.ac: Update test for TLS descriptors: they are
	supported as of glibc 2.9.
	* configure: Rebuild.

2008-12-11  Ian Lance Taylor  <iant@google.com>

	PR 7091
	* target-reloc.h (Default_scan_relocatable_relocs): For each
	function, map r_type == 0 to RELOC_DISCARD.

2008-12-10  Cary Coutant  <ccoutant@google.com>

	* layout.cc (Layout::add_comdat): Allow COMDAT group from a replacement
	object to override a kept COMDAT group from a plugin object.

2008-12-09  Ian Lance Taylor  <iant@google.com>

	PR 7088
	* yyscript.y (file_cmd): Handle INPUT.

	* testsuite/initpri1.c: Change all declarations to be full
	prototypes by adding void, to avoid compiler warnings.

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  Cary Coutant  <ccoutant@google.com>

	* layout.cc (Layout::include_section): Check for SHF_EXCLUDE.
	Handle --strip-lto-sections option.
	* options.h (strip_lto_sections): New option.

2008-12-01  Cary Coutant  <ccoutant@google.com>

	* plugin.cc (ld_plugin_message): Change format parameter to const.
	Fix mismatch between new[] and delete.

2008-11-14  Cary Coutant  <ccoutant@google.com>

	* reloc.cc (Sized_relobj::do_read_relocs): Use constant invalid_address
	instead of -1U.

2008-11-05  Craig Silverstein  <csilvers@google.com>

	* 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.

2008-11-05  Craig Silverstein  <csilvers@google.com>

	* testsuite/tls_test_c.c: Add prototype for t11 and t11_last.
	* testsuite/tls_test_c.c (t11): Add explicit "void" to prototype.
	(t11_last): Likewise.
	* testsuite/ver_test_6.c (main): Likewise.

2008-10-07  Cary Coutant  <ccoutant@google.com>

	* 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.

2008-10-02  Cary Coutant  <ccoutant@google.com>

	* plugin.cc (make_sized_plugin_object): Fix conditional
	compilation to work when not all targets are enabled.

2008-09-29  Cary Coutant  <ccoutant@google.com>

	* archive.cc (Archive::get_file_and_offset): Use filename instead
	of name to get library path.
	(Archive::include_member): Unlock external member of a thin archive.

	* testsuite/Makefile.am (TEST_AR): New variable.
	(thin_archive_test_1): New test.
	(thin_archive_test_2): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/thin_archive_main.cc: New file.
	* testsuite/thin_archive_test_1.cc: New file.
	* testsuite/thin_archive_test_2.cc: New file.
	* testsuite/thin_archive_test_3.cc: New file.
	* testsuite/thin_archive_test_4.cc: New file.

2008-09-29  Cary Coutant  <ccoutant@google.com>

	* 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.

2008-09-19  Cary Coutant  <ccoutant@google.com>

	Add plugin functionality for link-time optimization (LTO).
	* 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.

2008-09-16  Ian Lance Taylor  <iant@google.com>

	* target-reloc.h (relocate_section): Check whether a symbol is
	defined by the ABI before reporting an undefined symbol error.
	* target.h (Target::is_defined_by_abi): Make parameter const.
	(Target::do_is_defined_by_abi): Likewise.
	* i386.cc (Target_i386::do_is_defined_by_abi): Likewise.
	* powerpc.cc (Target_powerpc::do_is_defined_by_abi): Likewise.
	* sparc.cc (Target_sparc::do_is_defined_by_abi): Likewise.
	* x86_64.cc (Target_x86_64::do_is_defined_by_abi): Likewise.
	* testsuite/Makefile.am (tls_test_shared.so): Add -Wl,-z,defs.
	* testsuite/Makefile.in: Rebuild.

	* fileread.cc (make_view): Add casts to avoid warning.

2008-09-16  Alexandre Oliva  <aoliva@redhat.com>

	* i386.cc (Target_i386::define_tls_base_symbol): Update comments.
	* x86_64.cc (Target_x86_64::define_tls_base_symbol): Likewise.

2008-09-16  Alexandre Oliva  <aoliva@redhat.com>

	* options.h (General_options::output_is_executable): New.
	(General_options::output_is_pie): New.
	* i386.cc (Target_i386::define_tls_base_symbol): Use SEGMENT_START
	for shared libraries.
	* x86_64.cc (Target_x86_64::define_tls_base_symbol): Likewise.

2008-09-11  Chris Demetriou  <cgd@google.com>

	* options.h (origin): New -z option.
	* layout.cc (Layout:finish_dynamic_section): If "-z origin"
	is specified, set DF_ORIGIN in DT_FLAGS and set DF_1_ORIGIN
	in DT_FLAGS_1.

2008-09-05  Cary Coutant  <ccoutant@google.com>

	* fileread.cc (File_read::make_view): Add check for attempt to map
	beyond end of file.

2008-09-05  Cary Coutant  <ccoutant@google.com>

	* symtab.cc (Symbol_table::add_from_dynobj): Fix typos in
	explicit instantiations.

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.

2008-08-20  Craig Silverstein  <csilvers@google.com>

	* fileread.cc (File_read::open): Do not lock the file unless it
	was successfully opened.

2008-08-14  Cary Coutant  <ccoutant@google.com>

	* x86_64.cc (Target_x86_64::Relocate::relocat_tls):
	Use addend for DTPOFF32, DTPOFF64, and TPOFF32 relocs.
	* testsuite/tls_test.cc (struct int128): 128-bit struct
	for testing TLS relocs with non-zero addend.
	(v12): New TLS variable.
	(t12): New test.
	(t_last): Add check for v12.
	* testsuite/tls_test.h (t12): New function.
	* testsuite/tls_test_main.cc (thread_routine): Call new test.

2008-08-13  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::attach_allocated_section_to_segment): Don't
	set tls_segment_ or relro_segment_.
	(Layout::make_output_segment): Set tls_segment_ and relro_segment_
	when appropriate.
	* output.h (Output_section::clear_is_relro): New function.
	* output.cc (Output_segment::add_output_section): Handle SHF_TLS
	sections specially even when output_data_ is empty.
	(Output_segment::maximum_alignment): When first section is relro,
	only force alignment for PT_LOAD segments.
	* script.cc (script_data_segment_align): New function.
	(script_data_segment_relro_end): New function.
	* script-c.h (script_data_segment_align): Declare.
	(script_data_segment_relro_end): Declare.
	* script-sections.h (class Script_sections): Declare
	data_segment_align and data_segment_relro_end.  Add fields
	segment_align_index_ and saw_relro_end_.
	* script-sections.cc (class Sections_element): Add set_is_relro
	virtual function.  Add new bool* parameter to place_orphan_here.
	Add get_output_section virtual function.
	(class Output_section_definition): Add set_is_relro.  Add new
	bool* parameter to place_orphan_here.  Add get_output_section.
	Add is_relro_ field.
	(Output_section_definition::Output_section_definition): Initialize
	evaluated_address_, evaluated_load_address, evaluated_addralign_,
	and is_relro_ fields.
	(Output_section_definition::place_orphan_here): Add is_relro
	parameter.
	(Output_section_definition::set_section_addresses): Set relro for
	output section.
	(Output_section_definition::alternate_constraint): Likewise.
	(class Orphan_output_section): Add new bool* parameter to
	place_orphan_here.  Add get_output_section.
	(Orphan_output_section::place_orphan_here): Add is_relro
	parameter.
	(Script_sections::Script_sections): Initialize
	data_segment_align_index_ and saw_relro_end_.
	(Script_sections::data_segment_align): New function.
	(Script_sections::data_segment_relro_end): New function.
	(Script_sections::place_orphan): Set or clear is_relro.
	(Script_sections::set_section_addresses): Force alignment of first
	TLS section.
	* yyscript.y (exp): Call script_data_segment_align and
	script_data_segment_relro_end.
	* testsuite/relro_script_test.t: New file.
	* testsuite/relro_test.cc (using_script): Declare.
	(t1, t2): Test using_script.
	* testsuite/Makefile.am (check_PROGRAMS): Add relro_script_test.
	(relro_script_test_SOURCES): Define.
	(relro_script_test_DEPENDENCIES): Define.
	(relro_script_test_LDFLAGS): Define.
	(relro_script_test_LDADD): Define.
	(relro_script_test.so): New target.
	* testsuite/Makefile.in: Rebuild.

2008-08-06  Cary Coutant <ccoutant@google.com>

	* archive.cc (Archive::total_archives, Archive::total_members)
	(Archive::total_members_loaded): New variables.
	(Archive::setup): Add parameter.  Add option to preread
	archive symbols.
	(Archive::read_armap): Add counter.
	(Archive::get_file_and_offset): New function.
	(Archive::get_elf_object_for_member): New function.
	(Archive::read_all_symbols): New function.
	(Archive::read_symbols): New function.
	(Archive::add_symbols): Add counters.
	(Archive::include_all_members): Use armap to find members if it's
	already built.
	(Archive::include_member): Skip reading symbols if already read.
	Factored code into Archive::get_file_and_offset and
	Archive::get_elf_object_for_member.  Changed call to
	Mapfile::report_include_archive_member.
	(Archive::print_stats): New function.
	* archive.h: Declare Object and Read_symbols_data classes.
	(Archive::Archive): Add initializers for new members.
	(Archive::setup): Add parameter.
	(Archive::print_stats): New function.
	(Archive::total_archives, Archive::total_members)
	(Archive::total_members_loaded): New variables.
	(Archive::get_file_and_offset): New function.
	(Archive::get_elf_object_for_member): New function.
	(Archive::read_all_symbols): New function.
	(Archive::read_symbols): New function.
	(Archive::Archive_member): New class.
	(Archive::members_): New member.
	(Archive::num_members_): New member.
	* main.cc: Include archive.h.
	(main): Call Archive::print_stats.
	* mapfile.cc (Mapfile::report_include_archive_member): Delete
	archive parameter; member_name is now the fully-decorated name.
	* mapfile.h (Mapfile::report_include_archive_member): Likewise.
	* options.h: (General_options): Add --preread-archive-symbols option.
	* readsyms.cc (Read_symbols::do_read_symbols): Change call to
	Archive::setup.

2008-08-04  Ian Lance Taylor  <iant@google.com>

	* symtab.h (Symbol::use_plt_offset): New function.
	* i386.cc (Relocate::relocate): Call Symbol::use_plt_offset.
	* powerpc.cc (Relocate::relocate): Likewise.
	* sparc.cc (Relocate::relocate): Likewise.
	* x86_64.cc (Relocate::relocate): Likewise.
	* testsuite/weak_plt.sh: New test.
	* testsuite/weak_plt_main.cc: New test.
	* testsuite/weak_plt_shared.cc: New test.
	* testsuite/Makefile.am (check_SCRIPTS): Add weak_plt.sh.
	(check_PROGRAMS): Add weak_plt.
	(check_DATA): Add weak_plt_shared.so.
	(weak_plt_main_pic.o, weak_plt): New targets.
	(weak_plt_shared_pic.o, weak_plt_shared.so): New targets.
	* testsuite/Makefile.in: Rebuild.

	* testsuite/Makefile.am (weak_alias_test_1.so): Depend upon
	gcctestdir/ld.
	(weak_alias_test_2.so, weak_alias_test_4.so): Likewise.
	* testsuite/Makefile.in: Rebuild.

2008-08-04  Alan Modra  <amodra@bigpond.net.au>

	* Makefile.am (POTFILES.in): Set LC_ALL=C.
	* Makefile.in: Regenerate.
	* po/POTFILES.in: Regenerate.

2008-07-29  Ian Lance Taylor  <iant@google.com>

	* script.cc (Script_options::finalize_symbols): Finalize SECTIONS
	symbols before other symbols.
	* testsuite/script_test_2.cc (test_addr): Declare.
	(test_addr_alias): Declare.
	(main): Check that test_addr and test_addr_alias have the right
	values.
	* testsuite/script_test_2.t: Define test_addr_alias and
	test_addr.

2008-07-24  Ian Lance Taylor  <iant@google.com>

	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.

	PR 6716
	* gold.h: Always include <clocale>.  Add Solaris workarounds
	following code in binutils/sysdep.h.

	PR 6048
	* ehframe.cc (Eh_frame::add_ehframe_input_section): Check whether
	this->eh_frame_hdr_ is NULL before using it.

	* dynobj.cc (Versions::Versions): Update comment.

	* dynobj.cc (Versions::Versions): If there is an soname, use it as
	the base version name.

	* stringpool.cc (Stringpool_template::add_with_length): Set key to
	array size plus one.
	(Stringpool_template::set_string_offsets): Subtract one from key
	before using it as an array index.
	(Stringpool_template::get_offset_with_length): Likewise.
	(Stringpool_template::write_to_buffer): Likewise.
	* stringpool.h (Stringpool_template::get_offset_from_key):
	Likewise.

2008-07-23  Ian Lance Taylor  <iant@google.com>

	PR 6658
	* object.h (Merged_symbol_value::value): Do our best to handle a
	negative addend.

	PR 6647
	* script.cc (Version_script_info::get_versions): Don't add empty
	version tag to return value.
	(Version_script_info::get_symbol_version_helper): Change return
	type to bool.  Add pversion parameter.  Change all callers.
	(script_register_vers_node): Don't require a non-NULL tag.
	* script.h (class Version_script_info): Update declarations.
	(Version_script_info::get_symbol_version): Change return type to
	bool.  Add version parameter.  Change all callers.
	* symtab.cc (Sized_symbol::add_from_relobj): Rework version
	handling.  Handle an empty version from a version script.
	(Symbol_table::define_special_symbol): Likewise.
	* testsuite/ver_test_10.script: New file.
	* testsuite/ver_test_10.sh: New file.
	* testsuite/Makefile.am (check_SCRIPTS): Add ver_test_10.sh.
	(check_DATA): Add ver_test_10.syms.
	(ver_test_10.syms, ver_test_10.so): New target.
	* testsuite/Makefile.in: Rebuild.

2008-07-23  Simon Baldwin  <simonb@google.com>

	* symtab.cc (Symbol_table::sized_write_symbol): Only set st_size
	to zero for undefined symbols from dynamic libraries.

2008-07-23  Ian Lance Taylor  <iant@google.com>

	* symtab.cc (Symbol_table::resolve): Remove version parameter.
	Change all callers.
	* symtab.h (class Symbol_table): Update declaration.
	* testsuite/ver_test_9.cc: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_9.
	(ver_test_9_SOURCES, ver_test_9_DEPENDENCIES): Define.
	(ver_test_9_LDFLAGS, ver_test_9_LDADD): Define.
	(ver_test_9.so, ver_test_9.o): New targets.
	* testsuite/Makefile.in: Rebuild.

2008-07-22  Ian Lance Taylor  <iant@google.com>

	* options.h (class General_options): Define --check-sections.
	* layout.cc (Layout::set_segment_offsets): Handle
	--check-sections.

	* 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.

	* 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  Simon Baldwin  <simonb@google.com>

	* symtab.cc (Symbol_table::sized_write_symbol): Set symbol size
	to zero when writing undefined symbols.

2008-07-22  Ian Lance Taylor  <iant@google.com>

	* output.cc (Output_section::add_input_section): Don't try to
	merge empty merge sections.

2008-07-21  Craig Silverstein  <csilvers@google.com>

	* symtab.cc (Symbol_table::warn_about_undefined_dynobj_symbol):
	Include symbol version in error message.

2008-07-20  Chris Demetriou  <cgd@google.com>

	* configure.ac (gold_cv_c_random_seed): New configured variable.
	(RANDOM_SEED_CFLAGS): New substituted variable.
	* Makefile.am (AM_CFLAGS, AM_CXXFLAGS): Add $(RANDOM_SEED_CFLAGS).
	* configure: Rebuild.
	* Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.

2008-07-18  Ian Lance Taylor  <iant@google.com>

	* symtab.cc (Symbol_table::add_from_object): Rewrite the case
	where we see NAME/NULL and NAME/VERSION  as separate symbols.
	* testsuite/ver_test_main.cc (main): Call t4.
	(t4, t4_2a): Define.
	* testsuite/ver_test_2.cc (t4_2): Define.
	* testsuite/ver_test_2.script: Put t4_2a in VER2.
	* testsuite/ver_test_4.cc (t4_2a): Define.
	* testsuite/ver_test_4.script: Put t4_2a in VER2.
	* testsuite/ver_test.h (t4, t4_2, t4_2a): Declare.

2008-07-17  Ian Lance Taylor  <iant@google.com>

	* dynobj.cc (Versions::add_def): If we give an error about a
	missing version, go ahead and create the version anyhow.

2008-07-10  Ian Lance Taylor  <iant@google.com>

	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.

2008-07-03  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::include_section): Do not discard unrecognized
	SHT_STRTAB sections.

2008-06-30  Craig Silverstein  <csilvers@cs.stanford.edu>

	* script.cc (Lex::can_continue_name): Make '?' allowable in
	version-script names.
	* testsuite/version_script.map: Change glob pattern to use '?'

2008-06-30  Manish Singh  <yosh@gimp.org>

	PR 6585
	* symtab.cc (Symbol_table::add_undefined_symbols_from_command_line):
	Correct typo.

2008-06-30  Ian Lance Taylor  <iant@google.com>

	PR 6660
	PR 6682
	* powerpc.cc (Powerpc_relocate_functions::addr16_ha) [both
	versions]: Don't try to read the value in the contents, since we
	don't use it.  Use the template endianness when writing.

2008-06-25  Cary Coutant  <ccoutant@google.com>

	* fileread.cc (File_read::make_view): Assert on zero-length view.
	* object.cc (Sized_relobj::do_read_symbols): Don't try to read
	symbol table when there are no symbols to read.

2008-06-23  Craig Silverstein  <csilvers@google.com>

	* version.cc (version_string): Bump to 1.7

2008-06-18  Craig Silverstein  <csilvers@google.com>

	* powerpc.cc (Powerpc_relocate_functions::addr16_ha): cast
	constant 0xFFFF to type Valtype.
	(Powerpc_relocate_functions::rel16_ha): Likewise.

2008-06-17  Ian Lance Taylor  <iant@google.com>

	* output.h (Output_section::Input_section): Initialize p2align_ to
	zero for Output_section_data constructors.
	(Output_section::Input_section::addralign): If not an input
	section, return the alignment of the Output_section_data.
	* testsuite/copy_test.cc: New file.
	* testsuite/copy_test_1.cc: New file.
	* testsuite/copy_test_2.cc: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add copy_test.
	(copy_test_SOURCES, copy_test_DEPENDENCIES): New variables.
	(copy_test_LDFLAGS, copy_test_LDADD): New variables.
	(copy_test_1_pic.o, copy_test_1.so): New targets.
	(copy_test_2_pic.o, copy_test_2.so): New targets.
	* testsuite/Makefile.in: Rebuild.

	* script-sections.cc (Script_sections::place_orphan): Initialize
	local variable exact.

2008-06-13  David Edelsohn  <edelsohn@gnu.org>

	* powerpc.cc (Output_data_plt_powerpc::do_write): 8 + 4 = 0xC.

2008-06-12  David Edelsohn  <edelsohn@gnu.org>
	    David S. Miller  <davem@davemloft.net>

	* powerpc.cc: New file.
	* Makefile.am (TARGETSOURCES): Add powerpc.cc
	(ALL_TARGETOBJS): Add powerpc.$(OBJEXT)
	* configure.tgt: Add entries for powerpc-* and powerpc64-*.
	* Makefile.in: Rebuild.

2008-06-09  Ian Lance Taylor  <iant@google.com>

	* testsuite/relro_test.cc: Include <cstdio>, <cstdlib>, and
	<exception>.
	(throwing, orig_terminate): New static variables.
	(terminate_handler): New static function.
	(t2): Set terminate handler.

2008-06-05  Kris Van Hees  <kris.van.hees@oracle.com>

	PR 6584
	* binary.cc (Binary_to_elf::sized_convert): Fix .data
	alignment.

2008-05-30  Cary Coutant  <ccoutant@google.com>

	* archive.cc (Archive::include_all_members) Correct to step
	over symbol table and extended name table in thin archives.

2008-05-29  Kris Van Hees  <kris.van.hees@oracle.com>

	PR 6407
	* target-reloc.h (relocate_for_relocatable): Fix new_offset
	calculation.

2008-05-28  Caleb Howe  <cshowe@google.com>

	* reduced_debug_output.cc: New file.
	* reduced_debug_output.h: New file.
	* options.h (class General_options): Add --strip-debug-non-line.
	* options.cc (General_options::finalize): Add strip_debug_non_line
	to the strip heirarchy.
	* layout.h (class Layout): Add debug_abbrev_ and debug_info_
	fields.
	* layout.cc: Include "reduced_debug_output.h".
	(Layout::Layout): Initialize new fields.
	(line_only_debug_sections): New static array.
	(is_lines_only_debug_sections): New static inline function.
	(Layout::include_section): Handle --strip-debug-non-line.
	(Layout::make_output_section): If --strip-debug-non-line, build
	new output sections for .debug_abbrev and .debug_info.
	* dwarf_reader.cc (read_unsigned_LEB_128): Move to namespace
	gold.  Warn about possible overflow.
	(read_signed_LEB_128): Likewise.
	* dwarf_reader.h: (read_unsigned_LEB_128): Declare.
	(read_signed_LEB_128): Declare.
	* Makefile.am (CCFILES): Add reduced_debug_output.cc.
	(HFILES): Add reduced_debug_output.h.
	* Makefile.in: Rebuild.

2008-05-21  Ian Lance Taylor  <iant@google.com>

	* 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.

2008-05-19  Ian Lance Taylor  <iant@google.com>

	* options.h (class General_options): Add -z relro.
	* layout.cc (Layout::Layout): Initialize relro_segment_.
	(Layout::add_output_section_data): Return the output section.
	(Layout::make_output_section): Rcognize relro sections and mark
	them appropriately.
	(Layout::attach_allocated_section_to_segment): Put relro sections
	in a PT_GNU_RELRO segment.
	(Layout::create_initial_dynamic_sections): Mark the .dynamic
	section as relro.
	(Layout::segment_precedes): Sort PT_GNU_RELRO segments after
	PT_TLS segments.
	(Layout::linkonce_mapping): Map d.rel.ro.local to
	.data.rel.ro.local.
	(Layout::output_section_name): Us .data.rel.ro.local for any
	section which begins with that.
	* layout.h (class Layout): Update add_output_section_data
	declaration.  Add relro_segment_ field.
	* output.cc (Output_section::Output_section): Initialize is_relro_
	and is_relro_local_ fields.
	(Output_segment::add_output_section): Group relro sections.
	(Output_segment::is_first_section_relro): New function.
	(Output_segment::maximum_alignment): If there is a relro section,
	align the segment to the common page size.
	(Output_segment::set_section_addresses): Track whether we are
	looking at relro sections.  If the last section is a relro
	section, align to the common page size.
	(Output_segment::set_section_list_addresses): Add in_relro
	parameter.  Change all callers.  Align to the page size when
	moving from relro to non-relro section.
	(Output_segment::set_offset): Align memsz of a PT_GNU_RELRO
	segment.
	* output.h (class Output_section): Add is_relro_ and
	is_relro_local_ fields.
	(Output_section::is_relro): New function.
	(Output_section::set_is_relro): New function.
	(Output_section::is_relro_local): New function.
	(Output_section::set_is_relro_local): New function.
	(class Output_segment): Update declarations.
	* i386.cc (Target_i386::got_section): Mark .got section as relro.
	* sparc.cc (Target_sparc::got_section): Likewise.
	* x86_64.cc (Target_x86_64::got_section): Likewise.
	* testsuite/relro_test_main.cc: New file.
	* testsuite/relro_test.cc: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add relro_test.
	(relro_test_SOURCES, relro_test_DEPENDENCIES): New variables.
	(relro_test_LDFLAGS, relro_test_LDADD): New variables.
	(relro_test.so, relro_test_pic.o): New targets.
	* testsuite/Makefile.in: Rebuild.

2008-05-16  Ian Lance Taylor  <iant@google.com>

	* output.cc (Output_segment::add_output_section): Remove front
	parameter.
	* output.h (class Output_segment): Remove
	add_initial_output_section and overloaded add_output_section.
	Update declaration of remaining add_output_section.
	* layout.cc (Layout::create_interp): Call add_output_section
	rather than add_initial_output_section.
	(Layout::finish_dynamic_section): Likewise.

	* i386.cc (Target_i386::Relocate::relocate_tls): Set dynamic type
	for TLS_GOTDESC and TLS_DESC_CALL.  Only optimize TLS_LDO_32 if we
	know the dynamic type.
	* x86_64.cc (Target_x86_64::Relocate): Add saw_tls_block_reloc_
	field.  Initialize it in constructor.
	(Target_x86_64::Relocate::relocate_tls): Record that we saw a TLS
	block reloc for TLSGD, GOTPC32_TLSDESC, TLSDESC_CALL, and TLSLD.
	Only optimize DTPOFF32 and DTPOFF64 if we have seen a TLS block
	reloc.

	* output.cc (Output_reloc::get_address): Change return type to
	Elf_Addr.
	* output.h (class Output_reloc): Update get_address declaration.
	* x86_64.cc (Output_data_plt_x86_64::do_write): Use 64-bit types
	for section addresses.

2008-05-09  Ian Lance Taylor  <iant@google.com>

	PR 6493
	* gold.cc (gold_nomem): Use return value of write.

2008-05-08  Ian Lance Taylor  <iant@google.com>

	* symtab.c (Symbol::init_base_output_data): Add version
	parameter.  Change all callers.
	(Symbol::init_base_output_segment): Likewise.
	(Symbol::init_base_constant): Likewise.
	(Symbol::init_base_undefined): Likewise.
	(Sized_symbol::init_output_data): Likewise.
	(Sized_symbol::init_output_segment): Likewise.
	(Sized_symbol::init_constant): Likewise.
	(Sized_symbol::init_undefined): Likewise.
	(Symbol_table::do_define_in_output_data): If the new symbol has a
	version, mark it as the default.
	(Symbol_table::do_define_in_output_segment): Likewise.
	(Symbol_table::do_define_as_constant): Likewise.
	* symtab.h (class Symbol): Update declarations.
	(class Sized_symbol): Likewise.
	* resolve.cc (Symbol::override_version): New function.
	(Symbol::override_base): Call override_version.
	(Symbol::override_base_with_special): Likewise.
	* testsuite/ver_script_8.script: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_8.
	(ver_test_8_SOURCES, ver_test_8_DEPENDENCIES): Define.
	(ver_test_8_LDFLAGS, ver_test_8_LDADD): Define.
	(ver_test_8_1.so, ver_test_8_2.so): New targets.

2008-05-06  Ian Lance Taylor  <iant@google.com>

	PR 6049
	* options.h (DEFINE_set): Add VARNAME_begin and VARNAME_end
	functions.
	(class General_options): Remove existing --undefined, and add
	--no-undefined instead.  Add new --undefined as synonym for -u.
	* archive.cc (Archive::add_symbols): Check whether symbol was
	named with -u.
	* gold.cc (queue_middle_tasks): Add -u symbols to symbol table.
	* symtab.h (class Symbol): Rename CONSTANT to IS_CONSTANT; change
	all uses.  Add IS_UNDEFINED.  Update declarations to split
	different versions of init_base.  Declare init_base_undefined.
	(Symbol::is_defined): Handle IS_UNDEFINED.
	(Symbol::is_undefined): Likewise.
	(Symbol::is_weak_undefined): Call is_undefined.
	(Symbol::is_absolute): Handle IS_CONSTANT.
	(class Sized_symbol): Update declarations to split different
	versions of init.  Declare init_undefined.
	(class Symbol_table): Declare new functions.
	* symtab.cc (Symbol::init_base_object): Rename from init_base.
	Change all callers.
	(Symbol::init_base_output_data): Likewise.
	(Symbol::init_base_output_segment): Likewise.
	(Symbol::init_base_constant): Likewise.
	(Symbol::init_base_undefined): New function.
	(Sized_symbol::init_object): Rename from init.  Change all
	callers.
	(Sized_symbol::init_output_data): Likewise.
	(Sized_symbol::init_output_segment): Likewise.
	(Sized_symbol::init_constant): Likewise.
	(Sized_symbol::init_undefined): New function.
	(Symbol_table::add_undefined_symbols_from_command_line): New
	function.
	(Symbol_table::do_add_undefined_symbols_from_command_line): New
	function.
	(Symbol::final_value_is_known): Handle IS_UNDEFINED.
	(Symbol::output_section): Likewise.
	(Symbol::set_output_section): Likewise.
	(Symbol_table::sized_finalize_symbol): Likewise.
	(Symbol_table::sized_write_globals): Likewise.
	* resolve.cc (Symbol_table::should_override): Likewise.
	(Symbol::override_base_with_special): Likewise.

	* symtab.cc (Symbol_table::add_from_dynobj): If we see a protected
	symbol, change it to have default visibility.
	* testsuite/protected_1.cc: New file.
	* testsuite/protected_2.cc: New file.
	* testsuite/protected_3.cc: New file.
	* testsuite/protected_main_1.cc: New file.
	* testsuite/protected_main_2.cc: New file.
	* testsuite/protected_main_3.cc: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add protected_1.
	(protected_1_SOURCES, protected_1_DEPENDENCIES): Define.
	(protected_1_LDFLAGS, protected_1_LDADD): Define.
	(protected_1.so): New target.
	(protected_1_pic.o, protected_2_pic.o): New targets.
	(protected_3_pic.o): New target.
	(check_PROGRAMS): Add protected_2.
	(protected_2_SOURCES, protected_2_DEPENDENCIES): Define.
	(protected_2_LDFLAGS, protected_2_LDADD): Define.
	* testsuite/Makefile.in: Rebuild.

	* options.h (DEFINE_var): Add set_user_set_##varname__.
	(DEFINE_bool_alias): New macro.
	(class General_options): Define -Bstatic using DEFINE_bool_alias
	rather than DEFINE_special.  Add --undefined as an alias for -z
	defs.
	* options.cc (General_options::parse_Bstatic): Remove.

	* options.h (class General_options): Add --fatal-warnings.
	* main.cc (main): Implement --fatal-warnings.
	* errors.h (Errors::warning_count): New function.

	* options.h (class General_options): Add -Bsymbolic-functions.
	* symtab.h (Symbol::is_preemptible): Check for
	-Bsymbolic-functions.

2008-05-05  Ian Lance Taylor  <iant@google.com>

	* options.h (DEFINE_bool): For DASH_Z, create the negative option
	as noVARNAME rather than no-VARNAME.
	(class General_options): Add option -z combreloc.
	* output.h (class Output_reloc) [SHT_REL]: Declare compare and
	get_address.
	(Output_reloc::sort_before) [SHT_REL]: New function.
	(Output_reloc::sort_before) [SHT_RELA]: New function.
	(class Output_data_reloc_base): Add sort_relocs_ field.  Define
	Sort_relocs_comparison.
	(Output_data_reloc_base::Output_data_reloc_base): Add sort_relocs
	parameter.  Change all callers.
	(Output_data_reloc::Output_data_reloc) [both versions]: Add
	sort_relocs parameter.  Change all callers.
	* output.cc (Output_reloc::get_address): New function, broken out
	of write_rel.
	(Output_reloc::write_rel): Call it.
	(Output_reloc::compare): New function.
	(Output_data_reloc_base::do_write): Optionally sort relocs.

	* configure.ac: If targ_extra_obj is set, link it in.
	* configure.tgt: Initialize all variables.
	(x86_64*): Set targ_extra_obj and targ_extra_size.
	* configure: Rebuild.

	* object.cc (Sized_relobj::include_section_group): Adjust section
	indexes read from group data.  Build vector to pass to
	layout_group.
	* layout.cc (Layout::layout_group): Add flags and shndxes
	parameters.  Remove contents parameter.  Change caller.  Update
	explicit instantiations.
	* layout.h (class Layout): Update layout_group declaration.
	* output.cc (Output_data_group::Output_data_group): Add flags and
	input_shndxes parameters.  Remove contents parameter.  Change
	caller.
	(Output_data_group::do_write): Change input_sections_ to
	input_shndxes_.
	* output.h (class Output_data_group): Update constructor
	declaration.  Rename input_sections_ to input_shndxes_.
	* testsuite/many_sections_test.cc: Add template.

2008-04-30  Cary Coutant  <ccoutant@google.com>

	* target-reloc.h (relocate_section): Fix dead-pointer bug.

	* 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.

2008-04-30  Craig Silverstein  <csilvers@google.com>

	* dwarf_reader.cc (next_generation_count): New static var.
	(Addr2line_cache_entry): New struct.
	(addr2line_cache): New static var.
	(Dwarf_line_info::one_addr2line): Added caching.
	(Dwarf_line_info::clear_addr2line_cache): New function.
	* dwarf_reader.h (Dwarf_line_info::one_addr2line): Add
	cache-size parameter.
	(Dwarf_line_info::one_addr2line_cache): New function.
	* symtab.cc (Symbol_table::detect_odr_violations): Pass
	new cache-size argument to one_addr2line(), and clear cache.

2008-04-28  Cary Coutant  <ccoutant@google.com>

	* i386.cc (Relocate::relocate): Fix typos for R_386_PC16 and
	R_386_PC8 relocations.

2008-04-23  Ian Lance Taylor  <iant@google.com>

	* object.cc (Sized_relobj::include_section_group): Check for
	invalid section group.

	* object.cc (make_elf_object): Correct test for 64-bit ELF file
	header size.

	* readsyms.cc (Read_symbols::do_read_symbols): Use get_view rather
	than read for file header.
	* archive.cc (Archive::include_member): Likewise.

2008-04-23  Paolo Bonzini  <bonzini@gnu.org>

	* aclocal.m4: Regenerate.
	* configure: Regenerate.

2008-04-19  Ian Lance Taylor  <iant@google.com>

	* version.cc (version_string): Bump to 1.6.

	* testsuite/Makefile.am (many_sections_r_test): New target.
	(many_sections_r_test_SOURCES): Remove.
	(many_sections_r_test_DEPENDENCIES): Remove.
	(many_sections_r_test_LDFLAGS): Remove.
	(many_sections_r_test_LDADD): Remove.

	* object.cc (Sized_relobj::do_add_symbols): Always pass
	local_symbol_count_ to add_from_relobj.

	* testsuite/Makefile.am (many_sections_check.h): Only check one in
	every thousand variables.
	* testsuite/Makefile.in: Rebuild.

	* 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.

2008-04-17  Cary Coutant  <ccoutant@google.com>

	* errors.cc (Errors::info): New function.
	(gold_info): New function.
	* errors.h (Errors::info): New function.
	* gold.h (gold_info): New function.
	* object.cc (Input_objects::add_object): Print trace output.
	* options.cc (options::parse_set): New function.
	(General_options::parse_wrap): Deleted.
	(General_options::General_options): Deleted initializer.
	* options.h (options::String_set): New typedef.
	(options::parse_set): New function.
	(DEFINE_set): New macro.
	(General_options::wrap): Changed to use DEFINE_set. Changed
	callers of any_wrap_symbols and is_wrap_symbol.
	(General_options::trace, General_options::trace_symbol):
	New options.
	(General_options::any_wrap_symbols, General_options::is_wrap_symbol)
	(General_options::wrap_symbols_): Deleted.
	* symtab.cc (Symbol_table::add_from_object): Print trace output.

2008-04-17  David S. Miller  <davem@davemloft.net>

	* options.cc (General_options::parse_V): New function.
	* options.h: Add entries for -V and -Qy.

2008-04-17  Ian Lance Taylor  <iant@google.com>

	* common.cc (Symbol_table::allocate_commons): Remove options
	parameter.  Change caller.
	(Symbol_table::do_allocate_commons): Remove options parameter.
	Change caller.  Just call do_allocate_commons_list twice.
	(Symbol_table::do_allocate_commons_list): New function, broken out
	of do_allocate_commons.
	* common.h (class Allocate_commons_task): Remove options_ field.
	Update constructor.
	* symtab.cc (Symbol_table::Symbol_table): Initialize
	tls_commons_.
	(Symbol_table::add_from_object): Put TLS common symbols on
	tls_commons_ list.
	(Symbol_table::sized_finalize_symbol): Handle STT_TLS symbols
	which are IN_OUTPUT_DATA.
	* symtab.h (class Symbol_table): Add tls_commons_ field.  Update
	allocate_commons and do_allocate_commons declarations.  Declare
	do_allocate_commons_list.
	* gold.cc (queue_middle_tasks): Update creation of
	Allocate_commons_task to not pass options.
	* testsuite/Makefile.am (INCLUDES): Add -I.. .
	(TLS_TEST_C_FLAGS): New variable.
	(tls_test_c_pic.o): New target.
	(tls_test_shared.so): Link in tls_test_c_pic.o.
	(tls_test_c_pic_ie.o): New target.
	(tls_test_ie_shared.so): Link in tls_test_c_pic_ie.o.
	(tls_test_DEPENDENCIES, tls_test_LDADD): Add tls_test_c.o.
	(tls_test_c.o): New target.
	(tls_pic_test_DEPENDENCIES): Add tls_test_c_pic.o.
	(tls_pic_test_LDADD): Likewise.
	(tls_shared_gd_to_ie_test_DEPENDENCIES): Add tls_test_c_pic.o.
	(tls_shared_gd_to_ie_test_LDADD): Likewise.
	(tls_test_c_gnu2.o): New target.
	(tls_shared_gnu2_gd_to_ie_test_DEPENDENCIES): Add
	tls_test_c_gnu2.o.
	(tls_shared_gnu2_gd_to_ie_test_LDADD): Likewise.
	(tls_test_gnu2_shared.so): Link in tls_test_c_gnu2.o.
	(tls_test_shared_nonpic.so): Link in tls_test_c.o.
	* testsuite/tls_test.cc: Include "config.h".
	(t_last): Call t11_last.
	* testsuite/tls_test.h (t11, t11_last): Declare.
	* testsuite/tls_test_c.c: New file.
	* testsuite/tls_test_main.cc (thread_routine): Call t11.
	* configure.ac: Check for OpenMP support.
	* configure, config.in, Makefile.in: Rebuild.
	* testsuite/Makefile.in: Rebuild.

2008-04-16  Cary Coutant  <ccoutant@google.com>

	* i386.cc (Target_i386::define_tls_base_symbol): New function.
	(Target_i386::tls_base_symbol_defined_): New field.
	(Target_i386::Scan::local): Define _TLS_MODULE_BASE_ symbol.
	(Target_i386::Scan::global): Likewise.
	* symtab.cc (sized_finalize_symbol): Add check for TLS symbol.
	* x86_64.cc (Target_x86_64::define_tls_base_symbol): New function.
	(Target_x86_64::tls_base_symbol_defined_): New field.
	(Target_x86_64::Scan::local): Define _TLS_MODULE_BASE_ symbol.
	(Target_x86_64::Scan::global): Likewise.

2008-04-16  Cary Coutant  <ccoutant@google.com>

	* symtab.h (Symbol::is_strong_undefined): Removed unused function.
	(Symbol::needs_plt_entry): Allow weak undefined symbols.
	(Symbol::needs_dynamic_reloc): Allow weak undefined symbols when
	building shared libraries.
	* testsuite/Makefile.am (weak_undef_nonpic_test): New target.
	(weak_undef_file1_nonpic.o, weak_undef_file2_nonpic.o)
	(weak_undef_lib_nonpic.so, alt/weak_undef_lib_nonpic.so): New targets.
	* testsuite/Makefile.in: Rebuild.
	* testsuite/weak_undef.h: New file.
	* testsuite/weak_undef_file1.cc: Add extra test cases.
	* testsuite/weak_undef_file2.cc: Likewise.
	* testsuite/weak_undef_test.cc: Likewise.

2008-04-16  David S. Miller  <davem@davemloft.net>

	* sparc.cc (Target_sparc::Scan): Change from struct to class.
	Add issued_non_pic_error_ field.  Declare check_non_pic.
	(Target_sparc::Scan::check_non_pic): New function.
	(Target_sparc::Scan::local): Call check_non_pic as appropriate.
	(Target_sparc::Scan::global): Likewise.

	* configure.ac (FN_PTRS_IN_SO_WITHOUT_PIC): Add sparc64.
	* configure: Rebuild.

	* options.h (DEFINE_enable): New macro.
	(new_dtags): New enable option.
	(initfirst, interpose, loadfltr, nodefaultlib,
	nodelete, nodlopen, nodump): New -z options.
	* layout.cc (Layout:finish_dynamic_section): If new
	dtags enabled, emit DT_RUNPATH.  Also, emit a
	DT_FLAGS_1 containing any specified -z flags.

2008-04-16  Ian Lance Taylor  <iant@google.com>

	* copy-relocs.cc: New file.
	* copy-relocs.h: New file.
	* reloc.cc: Remove Copy_relocs code.
	* reloc.h: Likewise.
	* reloc-types.h (struct Reloc_types) [both versions]: Add
	get_reloc_addend_noerror.
	* output.h (class Output_data_reloc<elfcpp::SHT_REL>): Add
	variants of add_global which take an addend which must be zero.
	* i386.cc: Include "copy-relocs.h".
	(class Target_i386): Change type of copy_relocs_ to variable,
	update initializer.
	(Target_i386::copy_reloc): Rewrite to pass to Copy_relocs class.
	Change all callers.
	(Target_i386::do_finalize_sections): Change handling of
	copy_relocs_.
	* sparc.cc: Include "copy-relocs.h".
	(class Target_sparc): Change type of copy_relocs_ to variable,
	update initializer.
	(Target_sparc::copy_reloc): Rewrite to pass to Copy_relocs class.
	Change all callers.
	(Target_sparc::do_finalize_sections): Change handling of
	copy_relocs_.
	* x86_64.cc: Include "copy-relocs.h".
	(class Target_x86_64): Change type of copy_relocs_ to variable,
	update initializer.
	(Target_x86_64::copy_reloc): Rewrite to pass to Copy_relocs
	class.  Change all callers.
	(Target_x86_64::do_finalize_sections): Change handling of
	copy_relocs_.
	* Makefile.am (CCFILES): Add copy-relocs.cc.
	(HFILES): Add copy-relocs.h.

	* Makefile.in, aclocal.m4, testsuite/Makefile.in: Rebuild.

	* testsuite/script_test_4.sh: Permit leading zeroes.

2008-04-15  Ian Lance Taylor  <iant@google.com>

	* script-sections.cc (Script_sections::create_segments): Use
	header_size_adjustment even when there is enough room for the
	headers.
	* testsuite/script_test_4.sh: New file.
	* testsuite/script_test_4.t: New file.
	* testsuite/Makefile.am (check_SCRIPTS): Add script_test_4.sh.
	(check_DATA): Add script_test_4.stdout.
	(MOSTLYCLEANFILES): Likewise.
	(script_test_4): New target.
	(script_test_4.stdout): New target.
	* testsuite/Makefile.in: Rebuild.

	* sparc.cc: Add definitions for Output_data_plt_sparc class
	constants.

2008-04-14  David S. Miller  <davem@davemloft.net>

	* sparc.cc: New file.
	* Makefile.am (TARGETSOURCES): Add sparc.cc
	(ALL_TARGETOBJS): Add sparc.$(OBJEXT)
	* configure.tgt: Document targ_extra_size and
	targ_extra_big_endian.  Add entries for sparc-* and
	sparc64-*.
	* configure.ac: Handle targ_extra_size and
	targ_extra_big_endian.
	* Makefile.in: Rebuild.
	* configure: Likewise.
	* po/POTFILES.in: Likewise.
	* po/gold.pot: Likewise.

2008-04-14  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::Layout): Initialize sections_are_attached_.
	(Layout::get_output_section): Ignore SHF_WRITE and SHF_EXECINSTR
	in the name/type/flags to section mapping.  Don't call
	allocate_output_section.
	(Layout::choose_output_section): Change parameter from adjust_name
	to is_input_section.  Don't permit input sections after sections
	are attached to segments.  Don't call allocate_output_section.
	(Layout::layout_eh_frame): Call update_flags_for_input_section,
	not write_enable_output_section.
	(Layout::make_output_section): Don't push to
	unattached_section_list_ nor call attach_to_segment.  Call
	attach_section_to_segment if sections are attached.
	(Layout::attach_sections_to_segments): New function.
	(Layout::attach_section_to_segment): New function.
	(Layout::attach_allocated_section_to_segment): Rename from
	attach_to_segment.  Remove flags parameter.
	(Layout::allocate_output_section): Remove function.
	(Layout::write_enable_output_section): Remove function.
	* layout.h (class Layout): Update for above changes.  Add new
	field sections_are_attached_.
	* output.h (Output_section::update_flags_for_input_section): New
	function.
	* output.cc (Output_section::add_input_section): Call
	update_flags_for_input_section.
	* gold.cc (queue_middle_tasks): Call attach_sections_to_segments.

2008-04-11  Cary Coutant  <ccoutant@google.com>

	* i386.cc (Target_i386::got_mod_index_entry): Restore code previously
	thought unnecessary.
	* x86_64.cc (Target_x86_64::got_mod_index_entry): Likewise.

2008-04-11  Ian Lance Taylor  <iant@google.com>

	* output.h (class Output_section_data): Remove inline definition
	of set_addralign.
	* output.cc (Output_section_data::set_addralign): New function.

2008-04-11  Cary Coutant  <ccoutant@google.com>

	Add support for TLS descriptors for i386 and x86_64.
	* i386.cc (Target_i386::Relocate::tls_desc_gd_to_ie): New function.
	(Target_i386::Relocate::tls_desc_gd_to_le): New function.
	(Target_i386::Got_type): Add GOT_TYPE_TLS_NOFFSET and
	GOT_TYPE_TLS_DESC.
	(Target_i386::got_mod_index_entry): Remove unnecessary code.
	(Target_i386::Scan::local): Implement R_386_TLS_GOTDESC and
	R_386_TLS_DESC_CALL relocations.  Fix problem with initial-exec
	relocations.
	(Target_i386::Scan::global): Fix problem with GD-to-IE relaxation.
	Implement R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL relocations;
	Fix problem with initial-exec relocations.
	(Target_i386::Relocate::relocate_tls): Likewise.
	(Target_i386::Relocate::tls_gd_to_ie): Fix problem with GD-to-IE
	relaxation.
	* output.cc (Output_data_dynamic::Dynamic_entry::write): Add
	support for section-plus-offset dynamic table entries.
	* output.h (Output_data_dynamic::add_section_plus_offset): New function.
	(Output_data_dynamic::Dynamic_entry): Add support for
	section-plus-offset dynamic table entries.
	(Output_data_dynamic::Classification): Likewise.
	(Output_data_dynamic::classification_): Renamed offset_.
	* x86_64.cc (Target_x86_64::Relocate::tls_desc_gd_to_ie): New function.
	(Target_x86_64::Relocate::tls_desc_gd_to_le): New function.
	(Target_x86_64::make_plt_section): New function.
	(Target_x86_64::reserve_tlsdesc_entries): New function.
	(Output_data_plt_x86_64::Output_data_plt_x86_64): Add new parameter.
	(Output_data_plt_x86_64::reserve_tlsdesc_entry): New function.
	(Output_data_plt_x86_64::has_tlsdesc_entry): New function.
	(Output_data_plt_x86_64::get_tlsdesc_got_offset): New function.
	(Output_data_plt_x86_64::get_tlsdesc_plt_offset): New function.
	(Output_data_plt_x86_64::tlsdesc_plt_entry): New field.
	(Output_data_plt_x86_64::set_final_data_size): Move out of line;
	add extra PLT entry for TLS descriptors.
	(Output_data_plt_x86_64::got_): New field.
	(Output_data_plt_x86_64::tlsdesc_got_offset_): New field.
	(Output_data_plt_x86_64::Output_data_plt_x86_64): Initialize new
	fields.
	(Output_data_plt_x86_64::do_write): Write extra PLT entry for TLS
	descriptors.
	(Target_x86_64::make_plt_entry): Factor out make_plt_section.
	(Target_x86_64::got_mod_index_entry): Remove unnecessary code.
	(Target_x86_64::Scan::local): Implement R_386_TLS_GOTDESC and
	R_386_TLS_DESC_CALL relocations.
	(Target_x86_64::Scan::global): Likewise.
	(Target_x86_64::do_finalize_sections): Add dynamic table entries
	for TLS descriptors.
	(Relocate::relocate_tls): Fix problem with GD-to-IE relaxation.
	Implement R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL relocations.
	(Target_x86_64::Relocate::tls_gd_to_ie): Fix problem with
	GD-to-IE relaxation.
	* configure.ac: Export new conditional variables TLS_GNU2_DIALECT
	and TLS_DESCRIPTORS.
	* Makefile.in: Rebuild.
	* configure: Rebuild.
	* testsuite/Makefile.am (tls_shared_gd_to_ie_test): New target.
	(tls_test_shared2.so): New target.
	(tls_shared_gd_to_ie_test_SOURCES): New variable.
	(tls_shared_gd_to_ie_test_DEPENDENCIES): New variable.
	(tls_shared_gd_to_ie_test_LDFLAGS): New variable.
	(tls_shared_gd_to_ie_test_LDADD): New variable.
	(tls_shared_gnu2_gd_to_ie_test): New target.
	(tls_test_gnu2.o, tls_test_file2_gnu2.o, tls_test_gnu2_shared2.so):
	New targets.
	(tls_shared_gnu2_gd_to_ie_test_SOURCES): New variable.
	(ls_shared_gnu2_gd_to_ie_test_DEPENDENCIES): New variable.
	(tls_shared_gnu2_gd_to_ie_test_LDFLAGS): New variable.
	(tls_shared_gnu2_gd_to_ie_test_LDADD): New variable.
	(tls_shared_gnu2_test): New target.
	(tls_test_gnu2_shared.so): New target.
	(tls_shared_gnu2_test_SOURCES): New variable.
	(tls_shared_gnu2_test_DEPENDENCIES): New variable.
	(tls_shared_gnu2_test_LDFLAGS): New variable.
	(tls_shared_gnu2_test_LDADD): New variable.
	* testsuite/Makefile.in: Rebuild.
	* testsuite/Makefile.

2008-04-11  Ian Lance Taylor  <iant@google.com>

	* testsuite/Makefile.am (justsyms_2r.o): Add dependency on
	justsyms.t.
	* testsuite/Makefile.in: Rebuild.

	* testsuite/script_test_2a.cc (script_test_string_a): Make 8 bytes
	long.
	* testsuite/script_test_2.cc (main): Adjust test.

2008-04-11  David S. Miller  <davem@davemloft.net>
	    Ian Lance Taylor  <iant@google.com>

	* options.h (General_options): Add entries for '-Y' and
	'-relax'.
	* options.cc (General_options:finalize): If -Y was used, add those
	entries to the library path instead of the default "/lib" and
	"/usr/lib".

2008-04-11  David S. Miller  <davem@davemloft.net>

	* testsuite/justsyms.t: Start at 0x100.
	* testsuite/justsyms_1.cc: Adjust justsyms_string assertion.
	* testsuite/script_test_2b.cc (script_test_string_b): Make 8 bytes
	long.
	* testsuite/script_test_2.cc: Adjust string and section length
	checks.

2008-04-09  Ian Lance Taylor  <iant@google.com>

	PR gold/5996
	* script-sections.cc (Sections_element::allocate_to_segment): Add
	orphan parameter.
	(Output_section_definition::allocate_to_segment): Likewise.
	(Orphan_output_section::allocate_to_segment): Likewise.
	(Script_sections::attach_sections_using_phdrs_clause): Don't
	propagate non-PT_LOAD segments to orphan sections.
	* testsuite/Makefile.am (script_test_3.stdout): Generate using
	readelf rather than objdump.
	* testsuite/script_test_3.sh: Adjust accordingly.  Test that
	.interp section and PT_INTERP segment are the same size.
	* testsuite/Makefile.in: Rebuild.

	* symtab.cc (Symbol_table::add_from_dynobj): Only look for weak
	aliases for symbols defined in the same object.
	* testsuite/Makefile.am (check_PROGRAMS): Add weak_alias_test.
	(weak_alias_test_SOURCES): New variable.
	(weak_alias_test_DEPENDENCIES): New variable.
	(weak_alias_test_LDFLAGS): New variable.
	(weak_alias_test_LDADD): New variable.
	(weak_alias_test_1_pic.o, weak_alias_test_1.so): New targets.
	(weak_alias_test_2_pic.o, weak_alias_test_2.so): New targets.
	(weak_alias_test_3.o): New target.
	(weak_alias_test_4_pic.o, weak_alias_test_4.so): New targets.
	* testsuite/weak_alias_test_main.cc: New file.
	* testsuite/weak_alias_test_1.cc: New file.
	* testsuite/weak_alias_test_2.cc: New file.
	* testsuite/weak_alias_test_3.cc: New file.

2008-04-08  Ian Lance Taylor  <iant@google.com>

	* options.h (class General_options): Add --noinhibit-exec option.
	* main.cc (main): Check --noinhibit-exec.

	* options.h (class General_options): Define --wrap as a special
	option.  Add wrap_symbols_ field.
	(General_options::any_wrap_symbols): New function.
	(General_options::is_wrap_symbol): New function.
	* options.cc (General_options::parse_wrap): New function.
	(General_options::General_options): Initialize wrap_symbols_.
	* symtab.cc (Symbol_table::wrap_symbol): New function.
	(Symbol_table::add_from_object): Handle --wrap.
	* symtab.h (class Symbol_table): Declare wrap_symbol.
	* target.h (Target::wrap_char): New function.
	(Target::Target_info): Add wrap_char field.
	* i386.cc (Target_i386::i386_info): Initialize wrap_char.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	* testsuite/testfile.cc (Target_test::test_target_info):
	Likewise.

	* errors.cc (Errors::undefined_symbol): Mention symbol version if
	there is one.

	* layout.h (class Layout): Add added_eh_frame_data_ field.
	* layout.cc (Layout::Layout): Initialize new field.
	(Layout::layout_eh_frame): Don't add eh_frame_data_ to .eh_frame
	output section until we find a section we merged successfully.
	* object.cc (Sized_relobj::check_eh_frame_flags): Don't require
	that the size be non-zero.

	* merge.cc (Object_merge_map::get_output_offset): Remove inline
	qualifier.

2008-04-08  Craig Silverstein  <csilvers@google.com>

	* configure.ac: Export new conditional variable HAVE_ZLIB.
	* testsuite/Makefile.am (flagstest_o_specialfile): Condition
	on HAVE_ZLIB.
	(flagstest_o_specialfile_and_compress_debug_sections): Likewise.
	* configure, Makefile.in, testsuite/Makefile.in: Rebuild.

2008-04-07  Ian Lance Taylor  <iant@google.com>

	* version.cc (version_string): Set to "1.5".

	* x86_64.cc (Target_x86_64::Scan): Change from struct to class.
	Add issued_non_pic_error_ field.  Declare check_non_pic.
	(Target_x86_64::Scan::check_non_pic): New function.
	(Target_x86_64::Scan::local): Call check_non_pic as appropriate.
	(Target_x86_64::Scan::global): Likewise.

	* output.cc (Output_reloc<SHT_REL>::local_section_offset): Add
	addend parameter.  Change caller.  Handle merge sections.
	(Output_reloc<SHT_REL>::symbol_value): Change parameter type from
	Address to Addend.  Don't add in the result of
	local_section_offset, pass down the addend and use the returned
	value.
	* output.h (class Output_reloc<SHT_REL>): Add Addend typedef.
	Update declarations of local_section_offset and symbol_value.
	* testsuite/two_file_test_1.cc (t18): New function.
	* testsuite/two_file_test_2.cc (f18): New function.
	* testsuite/two_file_test_main.cc (main): Call t18.
	* testsuite/two_file_test.h (t18, f18): Declare.

	* configure.ac: Don't test for objdump, c++filt, or readelf.
	* testsuite/Makefile.am: Remove READELF and OBJDUMP_AND_CPPFILT
	conditionals.
	(TEST_READELF): New variable.
	(TEST_OBJDUMP, TEST_CXXFILT, TEST_STRIP): New variables.
	(check_PROGRAMS): Add two_file_strip_test.
	(two_file_strip_test): New target.
	(check_PROGRAMS): Add two_file_same_shared_strip_test.
	(two_file_same_shared_strip_test_SOURCES): New variable.
	(two_file_same_shared_strip_test_DEPENDENCIES): New variable.
	(two_file_same_shared_strip_test_LDFLAGS): New variable.
	(two_file_same_shared_strip_test_LDADD): New variable.
	(two_file_shared_strip.so): New target.
	(ver_test_2.syms, ver_test_4.syms): Use TEST_READELF.
	(ver_test_5.syms, ver_test_7.syms): Likewise.
	(ver_matching_test.stdout): Use TEST_OBJDUMP and TEST_CXXFILT.
	(strip_test_3.stdout): Use TEST_OBJDUMP.
	* configure, Makefile.in, testsuite/Makefile.in: Rebuild.

2008-04-04  Cary Coutant  <ccoutant@google.com>

	* symtab.h (Symbol::is_weak_undefined): New function.
	(Symbol::is_strong_undefined): New function.
	(Symbol::is_absolute): New function.
	(Symbol::needs_plt_entry): Exclude weak undefined symbols.
	(Symbol::needs_dynamic_reloc): Exclude weak undefined and
	absolute symbols.
	* testsuite/Makefile.am (check_PROGRAMS): Add weak_undef_test.
	(weak_undef_test): New target.
	* testsuite/Makefile.in: Rebuild.
	* testsuite/weak_undef_file1.cc: New file.
	* testsuite/weak_undef_file2.cc: New file.
	* testsuite/weak_undef_test.cc: New file.

2008-04-03  Craig Silverstein  <csilvers@google.com>

	* compressed_output.h (class Output_compressed_section): Use
	unsigned buffer.
	* compressed_output.cc (zlib_compress): Use unsigned buffers,
	add zlib header.
	(zlib_compressed_suffix): Removed.
	(Output_compressed_section::set_final_data_size): Use unsigned
	buffers.
	* testsuite/Makefile.am (flagstest_compress_debug_sections):
	Fix linker invocation.
	(flagstest_o_specialfile_and_compress_debug_sections):
	Likewise.
	* testsuite/Makefile.in: Regenerated.

2008-04-02  David S. Miller  <davem@davemloft.net>

	*  dwarf_reader.cc (Sized_dwarf_line_info::read_header_prolog,
	Sized_dwarf_line_info::process_one_opcode): Use Swap_unaligned.

2008-04-02  Craig Silverstein  <csilvers@google.com>

	* TODO: New file.

2008-04-02  Ian Lance Taylor  <iant@google.com>

	* 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.

2008-03-31  Cary Coutant  <ccoutant@google.com>

	Add thin archive support.
	* archive.cc (Archive::armagt): New const.
	(Archive::setup): Remove task parameter and calls to unlock.
	(Archive::unlock_nested_archives): New function.
	(Archive::read_header): Add nested_off parameter. Change
	all callers.
	(Archive::interpret_header): Likewise.
	(Archive::include_all_members): Change to handle thin
	archives.
	(Archive::include_member): Likewise.
	* archive.h (Archive::Archive): Add new parameters and
	initializers.
	(Archive::armagt): New const.
	(Archive::setup): Remove task parameter.
	(Archive::unlock_nested_archives): New function.
	(Archive::read_header): Add nested_off parameter.
	(Archive::interpret_header): Likewise.
	(Archive::Nested_archive_table): New typedef.
	(Archive::is_thin_archive_): New field.
	(Archive::nested_archives_): New field.
	(Archive::options_): New field.
	(Archive::dirpath_): New field.
	(Archive::task_): New field.
	* readsyms.cc (Read_symbols::do_read_symbols): Add check
	for thin archives.  Pass additional parameters to
	Archive::Archive.  Unlock the archive file after calling
	Archive::setup.

2008-03-29  Ian Lance Taylor  <iant@google.com>

	* symtab.cc (Symbol_table::do_define_as_constant): Don't force a
	version symbol to be local.
	* testsuite/ver_test_4.sh: New file.
	* testsuite/Makefile.am (check_SCRIPTS): Add ver_test_4.sh.
	(check_DATA): Add ver_test_4.syms.
	(ver_test_4.syms): New target.
	* testsuite/Makefile.in: Rebuild.

	* output.cc
	(Output_section::Input_section_sort_entry::has_priority): New
	function.
	(Output_section::Input_section_sort_entry::match_file_name): New
	function.
	(Output_section::Input_section_sort_entry::match_section_name):
	Remove.
	(Output_section::Input_section_sort_entry::match_section_name_prefix):
	Remove.
	(Output_section::Input_section_sort_entry::match_section_file):
	Remove.
	(Output_section::Input_section_sort_compare::operator()): Rewrite
	using new Input_section_sort_entry functions.  Sort crtbegin and
	crtend first.  Sort sections with no priority before sections with
	a priority.
	* testsuite/initpri1.c (d3): Check j != 4.
	(cd5): New constructor/destructor function.
	(main): Check j != 2.

	* symtab.cc (Symbol_table::add_from_object): If we don't use the
	new symbol when resolving, don't call set_is_default.
	* testsuite/ver_test_7.cc: New file.
	* testsuite/ver_test_7.sh: New file.
	* testsuite/Makefile.am (ver_test_7.so): New target.
	(ver_test_7.o): New target.
	(check_SCRIPTS): Add ver_test_7.sh.
	(check_DATA): Add ver_test_7.syms.
	(ver_test_7.syms): New target.

2008-03-28  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::layout): If we see an input section with a
	name that needs sorting, set the must_sort flag for the output
	section.
	(Layout::make_output_section): If the name of the output section
	indicates that it might	require sorting, set the may_sort flag.
	* output.h (Output_section::may_sort_attached_input_sections): New
	function.
	(Output_section::set_may_sort_attached_input_sections): New
	function.
	(Output_section::must_sort_attached_input_sections): New
	function.
	(Output_section::set_must_sort_attached_input_sections): New
	function.
	(class Output_section): Declare Input_section_sort_entry.  Define
	Input_section_sort_compare.  Declare
	sort_attached_input_sections.  Add new fields:
	may_sort_attached_input_sections_,
	must_sort_attached_input_sections_,
	attached_input_sections_are_sorted_.
	* output.cc (Output_section::Output_section): Initialize new
	fields.
	(Output_section::add_input_section): Add an entry to
	input_sections_ if may_sort or must_sort are true.
	(Output_section::set_final_data_size): Call
	sort_attached_input_sections if necessary.
	(Output_section::Input_section_sort_entry): Define new class.
	(Output_section::Input_section_sort_compare::operator()): New
	function.
	(Output_section::sort_attached_input_sections): New function.
	* configure.ac: Check whether the compiler supports constructor
	priorities.  Define a CONSTRUCTOR_PRIORITY automake conditional.
	* testsuite/initpri1.c: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add initpri1 if
	CONSTRUCTOR_PRIORITY.
	(initpri1_SOURCES, initpri1_DEPENDENCIES): New variables.
	(initpri1_LDFLAGS): New variable.
	* configure, Makefile.in, testsuite/Makefile.in: Rebuild.

2008-03-27  Ian Lance Taylor  <iant@google.com>

	* common.cc (Sort_commons::operator): Correct sorting algorithm.
	* testsuite/common_test_1.c: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add common_test_1.
	(common_test_1_SOURCES): New variable.
	(common_test_1_DEPENDENCIES): New variable.
	(common_test_1_LDFLAGS): New variable.

	* symtab.cc (Symbol_table::add_from_object): Handle saw_undefined_
	and commons_ correctly when NAME/VERSION does not override
	NAME/NULL.
	* testsuite/ver_test_6.c: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_6
	(ver_test_6_SOURCES, ver_test_6_DEPENDENCIES): New variables.
	(ver_test_6_LDFLAGS, ver_test_6_LDADD): New variables.

2008-03-26  Ian Lance Taylor  <iant@google.com>

	* symtab.cc (Symbol_table::add_from_relobj): Don't set the version
	of an undefined symbol from a version script.
	* testsuite/Makefile.am (ver_test_5.so): New target.
	(ver_test_5.o): New target.
	(check_SCRIPTS): Add ver_test_5.sh.
	(check_DATA): Add ver_test_5.syms.
	(ver_test_5.syms): New target.
	* testsuite/ver_test_5.cc: New file.
	* testsuite/ver_test_5.script: New file.
	* testsuite/ver_test_5.sh: New file.
	* Makefile.in, testsuite/Makefile.in: Rebuild.

	PR gold/5986
	Fix problems building gold with gcc 4.3.0.
	* gold.h (TEMPLATE_ATTRIBUTE_PRINTF_4): Define.
	(gold_error_at_location, gold_warning_at_location): Use it.
	* configure.ac: Check whether we can compile and use a template
	function with a printf attribute.
	* x86_64.cc (Target_x86_64::do_code_fill): Swap out a 32-bit value
	when jumping over bytes.
	* object.cc: Instantiate Object::read_section_data.
	* debug.h: Include <cstring>
	* dwarf_reader.cc: Include <algorithm>
	* main.cc: Include <cstring>.
	* options.cc: Include <cstring>.
	* output.cc: Include <cstring>.
	* script.cc: Include <cstring>.
	* script.h: Include <string>.
	* symtab.cc: Include <cstring> and <algorithm>.
	* target-select.cc: Include <cstring>.
	* version.cc: Include <string>.
	* testsuite/testmain.cc: Include <cstdlib>.
	* configure, config.in: Rebuild.

2008-03-25  Ian Lance Taylor  <iant@google.com>

	* options.cc: Include "../bfd/bfdver.h".
	(options::help): Print bug reporting address.

	* version.cc (print_version): Adjust output for current value of
	BFD_VERSION_STRING.

	* NEWS: New file.

	* options.cc (options::help): Print list of supported targets.
	* target-select.h: Include <vector>.
	(class Target_selector): Make machine_, size_, and is_big_endian_
	fields const.  Add bfd_name_ and instantiated_target_ fields.
	(Target_selector::Target_selector): Add bfd_name parameter.
	(Target_selector::recognize): Make non-virtual, call
	do_recognize.
	(Target_selector::recognize_by_name): Make non-virtual, call
	do_recognize_by_name.
	(Target_selector::supported_names): New function.
	(Target_selector::bfd_name): New function.
	(Target_selector::do_instantiate_target): New pure virtual
	function.
	(Target_selector::do_recognize): New virtual function.
	(Target_selector::do_recognize_by_name): New virtual function.
	(Target_selector::instantiate_target): New private function.
	(supported_target_names): Declare.
	* target-select.cc (Target_selector::Target_selector): Update for
	new parameter and fields.
	(select_target_by_name): Check that the name matches before
	calling recognize_by_name.
	(supported_target_names): New function.
	* i386.cc (class Target_selector_i386): Update Target_selector
	constructor call.  Remove recognize and recognize_by_name.  Add
	do_instantiate_target.
	* x86_64.cc (class Target_selector_x86_64): Likewise.
	* testsuite/testfile.cc (class Target_selector_test): Update for
	changes to Target_selector.

	* README: Rewrite, with some notes on unsupported features.

2008-03-24  Cary Coutant  <ccoutant@google.com>

	* 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  Ben Elliston  <bje@au.ibm.com>

	* yyscript.y: Fix spelling error in comment.

2008-03-24  Ian Lance Taylor  <iant@google.com>

	* options.h (class General_options): Define build_id option.
	* layout.h (class Layout): Declare write_build_id, create_note,
	create_build_id.  Add build_id_note_ member.
	* layout.cc: Include <cerrno>, <fcntl.h>, <unistd.h>,
	"libiberty.h", "md5.h", "sha1.h".
	(Layout::Layout): Initialize eh_frame_data_,
	eh_frame_hdr_section_, and build_id_note_.
	(Layout::finalize): Call create_build_id.
	(Layout::create_note): New function, broken out of
	Layout::create_gold_note.
	(Layout::create_gold_note): Call create_note.
	(Layout::create_build_id): New function.
	(Layout::write_build_id): New function.
	(Close_task_runner::run): Call write_build_id.

	* x86_64.cc: Correct license to GPLv3.

2008-03-23  Ian Lance Taylor  <iant@google.com>

	* options.cc: Include "demangle.h".
	(parse_optional_string): New function.
	(parse_long_option): Handle takes_optional_argument.
	(parse_short_option): Update dash_z initializer.  Handle
	takes_optional_argument.
	(General_options::General_options): Initialize do_demangle_.
	(General_options::finalize): Set do_demangle_.  Handle demangling
	style.
	* options.h (parse_optional_string): Declare.
	(struct One_option): Add optional_arg field.  Update constructor.
	Update call constructor calls.  Add takes_optional_argument
	function.
	(DEFINE_var): Add optional_arg__ parameter.  Change all callers.
	(DEFINE_optional_string): Define.
	(General_options::demangle): Change from DEFINE_bool to
	DEFINE_optional_string.
	(General_options::no_demangle): New function.
	(General_options::do_demangle): New function.
	(General_options::set_do_demangle): New function.
	(General_options::execstack_status_): Move definition to end of
	class definition.
	(General_options::static_): Likewise.
	(General_options::do_demangle_): New field.
	* object.cc (big_endian>::get_symbol_location_info): Call
	Options::do_demangle, not Options::demangle.
	* symtab.cc (demangle): Likewise.

2008-03-22  Ian Lance Taylor  <iant@google.com>

	* gold.h: Include <cstddef> and <sys/types.h>
	* options.h: Include <cstring>.

2008-03-21  Ian Lance Taylor  <iant@google.com>

	* Added source code to GNU binutils.