gdb

[deliverable/binutils-gdb.git] / gold / ChangeLog

2010-01-21  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_exidx_cantunwind, Arm_exidx_merged_section): New
	classes.
	(Arm_exidx_section_offset_map): New type.

2010-01-21  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_exidx_input_section): New class.
	(Arm_relobj::exidx_input_section_by_link,
	Arm_relobj::exidx_input_section_by_shndx,
	Arm_relobj::make_exidx_input_section): New methods.
	(read_arm_attributes_section): Remove.
	(Arm_relobj::do_read_symbols): Look for ARM.exidx sections and record
	information about them.
	(Arm_dynobj::do_read_symbols): Move code in read_arm_attributes_section
	to here.

2010-01-20  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::Arm_input_section_map): Change key type from
	Input_section_specifier to Section_id.
	(Target_arm::new_arm_input_section: Adjust code for change of key
	type.
	(Target_arm::find_arm_input_section): Ditto.
	* gc.h (object.h): Include for Section_id nand Section_id_hash.
	(Section_id): Remove.
	(Garbage_collection::Section_id_hash): Remove.
	* icf.h (object.h): Include for Section_id nand Section_id_hash.
	(Section_id): Remove.
	(Icf::Section_id_hash): Remove.
	* object.h (Section_id, Const_section_id, Section_id_hash,
	Const_section_id_hash): New type definitions.
	* output.cc (Output_section::add_relaxed_input_section): Change to
	use Const_section_id instead of Input_section_specifier as key type.
	(Output_section::add_merge_input_section): Ditto.
	(Output_section::build_relaxation_map): Change to use Section_id
	instead of Input_section_specifier as key type.
 	(Output_section::convert_input_sections_in_list_to_relaxed_sections):
	Ditto.
	(Output_section::convert_input_sections_to_relaxed_sections): Change
	to use Const_section_id instead of Input_section_specifier as key type.
 	(Output_section::find_merge_section): Ditto.
	(Output_section::find_relaxed_input_section): Ditto.
	* output.h (Input_section_specifier): Remove class.
	(Output_section::Output_section_data_by_input_section_map): Change
	key type to Const_section_id.
	(Output_section::Output_relaxed_input_section_by_input_section_map):
	Ditto.
	(Output_section::Relaxation_map): Change key type to Section_id.

2010-01-20  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* gold/arm.cc: Added support for R_ARM_V4BX relocation
	(class Arm_v4bx_stub): New class.
	(DEF_STUBS): Updated definition to support v4_veneer_bx.
	(Stub_factory::make_arm_v4bx_stub): New method.
	(Stub_factory::elf32_arm_stub_v4_veneer_bx): New veneer template.
	(Stub_table::empty): Handle v4bx stubs.
	(Stub_table::add_arm_v4bx_stub): New method.
	(Stub_table::find_arm_v4bx_stub): New method.
	(Arm_relocate_functions::v4bx): New method.
	(Target_arm::fix_v4bx): New method.
	(Target_arm::Target_arm): Handle R_ARM_V4BX.
	(Stub_table::relocate_stubs): Likewise.
	(Stub_table::do_write): Likewise.
	(Stub_table::update_data_size_and_addralign): Likewise.
	(Stub_table::finalize_stubs):  Likewise.
	(Target_arm::Scan::local): Likewise.
	(Target_arm::Scan::global): Likewise.
	(Target_arm::do_finalize_sections): Likewise.
	(Target_arm::Relocate::relocate): Likewise.
	(Target_arm::Relocatable_size_for_reloc::get_size_for_reloc):
	Likewise.
	(Target_arm::scan_reloc_for_stub): Likewise.
	(Target_arm::scan_reloc_section_for_stubs): Likewise.

2010-01-19  Ian Lance Taylor  <iant@google.com>

	* output.cc (Output_section_headers::do_sized_write): Write large
	segment count to sh_info field.
	(Output_file_header::do_sized_write): For large segment count,
	write PN_XNUM to e_phnum field.

2010-01-15  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* arm.cc (Arm_relocate_functions::thm_jump6): New function.
	(Arm_relocate_functions::thm_jump8): New function.
	(Arm_relocate_functions::thm_jump11): New function.
	(Target_arm::Scan::local): Handle R_ARM_THM_JUMP6, R_ARM_THM_JUMP8,
	R_ARM_THM_JUMP11.
	(Target_arm::Scan::global): Likewise.
	(Target_arm::Relocate::relocate): Likewise.
	(Target_arm::Relocatable_size_for_reloc::get_size_for_reloc):
	Likewise.

2010-01-14  Doug Kwan  <dougkwan@google.com>

	* arm.cc (map, utility): Include headers.
	(Target_arm::apply_cortex_a8_workaround): New method.
	(Arm_relobj::do_relocate_sections): Apply any Cortex-A8 workaround.
	(Target_arm::Scan::local): Handle R_ARM_THM_JUMP24, R_ARM_THM_JUMP19.
	(Target_arm::Scan::global): R_ARM_THM_JUMP19.
	(Target_arm::do_finalize_sections): Set fix_cortex_a8_ according to
	the --[no-]fix-cortex-a8 command line options.
	(Target_arm::Relocate::relocate): Handle R_ARM_JUMP19.
	(Target_arm::relocate_stub): Use addend in instruction template.
	* options.h (DEFINE_bool): Set the user-set flag.
	(General_options): Add --[no-]-fix-cortex options.
	* output.cc (Output_section::convert_input_sections_to_relaxed_sections)
	: Update fast look-up map after conversion. 

2010-01-14  Sriraman Tallam  <tmsriram@google.com>

	* object.cc (Sized_relobj::do_layout): Change to call layout_gnu_stack
	in the first pass of do_layout.

2010-01-13  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj::section_needs_reloc_stub_scanning,
	Arm_relobj::scan_sections_for_stubs): Rearrange code to avoid an
	apparent compiler problem of not folding static constant integral
	data members of elfcpp::Elf_sizes<32>.

2010-01-13  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj::section_needs_reloc_stub_scanning,
	Arm_relobj::section_needs_cortex_a8_stub_scanning,
	Arm_relobj::scan_section_for_cortex_a8_erratum,
	Arm_relobj::scan_span_for_cortex_a8_erratum): New methods.
	(Arm_relobj::scan_sections_for_stubs): Move code deciding what
	sections to scan for relocation stubs into a new method
	Arm_relobj::section_needs_reloc_stub_scanning.  Handle both
	relocation and Cortex-A8 stub scanning.
	(Target_arm::do_relax): Force stubs to be after stubbed sections
	if fixing the Cortex-A8 erratum.  Remove all Cortex-A8 stubs at
	the beginning of a new relaxation pass.  Update a comment. 
	(Target_arm::scan_span_for_cortex_a8_erratum): New method definition.

2010-01-12  Ian Lance Taylor  <iant@google.com>

	* target-reloc.h (visibility_error): New inline function.
	(relocate_section): Call visibility_error.
	* testsuite/Makefile.am (check_DATA): Add protected_3.err.
	(MOSTLYCLEANFILES): Likewise.
	(protected_4_pic.o, protected_3.err): New targets.
	* testsuite/protected_4.cc: New file.

2010-01-12  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Cortex_a8_reloc): New class.
	(Target_arm::Target_arm): Initialize new data members fix_cortex_a8_
	and cortex_a8_relocs_info_.
	(Target_arm::fix_cortex_a8): New method definition.
	(Target_arm::Cortex_a8_relocs_info): New type.
	(Target_arm::fix_cortex_a8_, Target_arm::cortex_a8_relocs_info_):
	New data member declarations.
	(Target_arm::scan_reloc_for_stub): Record information about
	relocations for THUMB branches that might be exempted from the
	Cortex-A8 workaround.
	(Target_arm::do_relax): Clear all Cortex-A8 relocation information
	at the beginning of a relaxation pass.

2010-01-12  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj::mapping_symbols_info_): New data member.
	(Arm_relobj::Mapping_symbol_position,
	 Arm_reloj::Mapping_symbol_position_less,
	 Arm_relobj::Mapping_symbols_info): New types.
	(Target_arm::is_mapping_symbol_name): New method definition.
	(Arm_relobj::do_count_local_symbols): Save information about mapping
	symbols.

2010-01-11  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relocate_functions::thumb32_branch_offset,
	Arm_relocate_functions::thumb32_branch_upper,
	Arm_relocate_functions::thumb32_branch_lower,
	Arm_relocate_functions::thumb32_cond_branch_offset,
	Arm_relocate_functions::thumb32_cond_branch_upper,
	Arm_relocate_functions::thumb32_cond_branch_lower,
	Arm_relocate_functions::thm_jump19): New methods to handle THUMB
	branch offset encoding.
	(Arm_relocate_functions::thumb_branch_common): Use new branch
	offset encoding methods to avoid code duplication.
	(Stub_template::Stub_template) Handle THUMB16_SPECIAL_TYPE.
	(Stub_addend_reader::operator()): Use new branch encoding method
	to avoid code duplication.

2010-01-11  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj::do_gc_process_relocs): New method.
	(Target_arm::do_finalize_sections): Define special EXIDX section
	symbols only if referenced.
	* gc.h (Garbage_collection::add_reference): New method.
	(gc_process_relocs): Use Garbage_collection::add_reference to avoid
	code duplication.

2010-01-11  Ian Lance Taylor  <iant@google.com>

	* script.cc (Version_script_info::build_expression_list_lookup):
	Change complaing about duplicate wildcard match from error to
	warning.

	* script.cc (class Lazy_demangler): Recreate--revert part of patch
	of 2009-12-30.
	(Version_script_info::Version_script_info): Initialize globs_,
	default_version_, default_is_global_, and exact_.  Don't
	initialize globals_ or locals_.
	(Version_script_info::build_lookup_tables): Build local symbols
	first.
	(Version_script_info::unquote): New function.
	(Version_script_info::add_exact_match): New function.
	(Version_script_info::build_expression_list_lookup): Remove lookup
	parameter.  Add is_global parameter.  Change all callers.  Handle
	wildcard pattern specially.  Unquote pattern.  Call
	add_exact_match.
	(Version_script_info::get_name_to_match): New function.
	(Version_script_info::get_symbol_version): New function.
	(Version_script_info::get_symbol_version_helper): Remove.
	(Version_script_info::check_unmatched_names): Call unquote.
	* script.h (class Version_script_info): Change get_symbol_version
	to be non-inline and add is_global parameter; change all callers.
	Rewrite symbol_is_local.  Update declarations.  Define struct
	Version_tree_match, Exact, Globs.  Don't define struct Lookup.
	Remove globals_ and locals_ members.  Add exact_, globs_,
	default_version_, is_global_.
	(Version_script_info::Glob): Remove pattern, add expression and
	is_global.  Update constructor.  Change all callers.
	* dynobj.cc (Versions::finalize): Mark the version symbol as the
	default version.
	(Versions::symbol_section_contents): If a symbol is undefined, or
	defined in a dynamic object, set the version index to
	VER_NDX_LOCAL.
	* symtab.cc (Symbol_table::add_from_relobj): Don't call
	symbol_is_local.
	(Symbol_table::add_from_pluginobj): Likewise.
	* testsuite/ver_matching_test.sh: blaza1 and blaza go into V2.

2010-01-11  Doug Kwan  <dougkwan@google.com>

	* Makefile.am (incremental_dump_DEPENDENCIES): Add libintl dependency.
	(incremental_dump_LDADD): Add linking option for libintl.
	* Makefile.in: Regenerate.

2010-01-11  H.J. Lu  <hongjiu.lu@intel.com>

	PR gold/11144
	* testsuite/Makefile.am (dynamic_list.stdout): Use --dyn-syms
	instead of -Ds.
	* testsuite/Makefile.in: Regenerated.

2010-01-10  Doug Kwan  <dougkwan@google.com>

	* options.h (DEFINE_var): Use parentheses around argument varname__
	in macro body to avoid any unintended subsequent substitutions.

2010-01-10  Ian Lance Taylor  <iant@google.com>

	* resolve.cc (Symbol_table::resolve): Add symbols to list of ODR
	candidates before doing symbol resolution.

	* resolve.cc (Symbol_table::resolve): Add symbols to the list of
	ODR candidates if only one is weak.

2010-01-08  Ian Lance Taylor  <iant@google.com>

	* script.cc (Version_script_info::build_expression_list_lookup):
	Don't warn about ambiguous version, just record the ambiguity.
	(Version_script_info::get_symbol_version_helper): Give error if
	version is ambiguous.

2010-01-08  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Stub_table::Stub_table): Initalize cortex_a8_stubs_,
	  prev_data_size_ and prev_addralign_.  Remove initializer for
	  deleted data member has_been_changed_.
	  (Stub_table::empty): Look at both reloc_stubs_ and cortex_a8_stubs_
	  to determine if the table is empty.
	  (Stub_table::has_been_changed, Stub_table_set_has_been_changed):
	  Remove.
	  (Stub_table::add_reloc_stub): Define method in class definition
	  instead of just declaring it there.
	  (Stub_table::add_cortex_a8_stub): New method definition.
	  (Stub_table::update_data_size_and_addralign): Ditto.
	  (Stub_table::finalize_stubs): Ditto.
	  (Stub_table::apply_cortex_a8_workaround_to_address_range): Ditto.
	  (Stub_table::do_addralign_): Return address alignment in the
	  (Stub_table::do_reset_address_and_file_offset): Define method in
	  class definition instead of declaring it there.  Set current data
	  size to be the data size of the previous pass.
	  (Stub_table::set_final_data_size): Use current data size as the
	  final data size.
	  (Stub_table::relocate_stub): Change parameter type of stub from
	  Reloc_stub pointer to Stub pointer.
	  (Stub_table::addralign_, Stub_table::has_been_changed_): Remove.
	  (Stub_table::Cortex_a8_stub_list): New typedef.
	  (Stub_table::cortex_a8_stubs_, Stub_table::prev_data_size_,
	   Stub_table::prev_addralign_): New data member.
	  (Arm_relobj::Arm_relobj): Initialize data member
	  section_has_cortex_a8_workaround_.
	  (Arm_relobj::section_has_cortex_a8_workaround,
	   Arm_relobj::mark_section_for_cortex_a8_workaround): New method
	   definitions.
	  (Arm_relobj::section_has_cortex_a8_workaround_): New data member
	  declarations.
	  (Target_arm::relocate_stub): Change parameter type of stub from
	  Reloc_stub pointer to Stub pointer.
	  (Insn_template::size, Insn_template::alignment): Handle
	  THUMB16_SPECIAL_TYPE.
	  (Stub_table::remove_all_cortex_a8_stubs, Stub_table::finalize_stubs,
	   Stub_table::update_data_size_and_addralign,
	   Stub_table::apply_cortex_a8_workaround_to_address_range): New method
	  definitions.
 	  (Stub_table::relocate_stubs): Handle Cortex-A8 stubs.
	  (Stub_table::do_write): Ditto.
	  (Target_arm::do_relax): Adjust code for changes in Stub_table.

2010-01-08  Ian Lance Taylor  <iant@google.com>

	PR 11108
	* symtab.h (class Symbol): Remove fields is_target_special_ and
	has_plt_offset_.  Add field is_defined_in_discarded_section_.
	(Symbol::is_defined_in_discarded_section): New function.
	(Symbol::set_is_defined_in_discarded_section): New function.
	(Symbol::has_plt_offset): Rewrite.
	(Symbol::set_plt_offset): Verify that new offset is not -1U.
	* symtab.cc (Symbol::init_fields): Initialize plt_offset_ to -1U.
	Don't initialize is_target_special_ or has_plt_offset_.
	Initialize is_defined_in_discarded_section_.
	(Symbol_table::add_from_relobj): If appropriate, set
	is_defined_in_discarded_section.
	* resolve.cc (Symbol::override_base_with_special): Don't test
	is_target_special_.  Change has_plt_offset_ to has_plt_offset().
	* target-reloc.h (relocate_section): Do special handling for
	symbols defined in discarded sections for global symbols as well
	as local symbols.

2010-01-08  Ian Lance Taylor  <iant@google.com>

	* dynobj.cc (big_endian>::find_dynsym_sections): Set pi to NULL in
	the SHT_SYMTAB case.

2010-01-08  Ian Lance Taylor  <iant@google.com>

	* object.cc (Sized_relobj::do_layout): Don't get confused if
	layout_eh_frame returns NULL.

2010-01-08  Ian Lance Taylor  <iant@google.com>

	PR 11084
	* dynobj.cc (Sized_dynobj::find_dynsym_sections): If there is no
	dynamic symbol table, use the normal symbol table.
	(Sized_dynobj::do_read_symbols): Remove assertion about type of
	symbol table.

2010-01-08  Ian Lance Taylor  <iant@google.com>

	PR 11072
	* layout.cc (Layout::include_section): Remove .gnu_debuglink
	sections.

2010-01-08  H.J. Lu  <hongjiu.lu@intel.com>

	* version.cc (print_version): Change to "Copyright 2010".

2010-01-08  Ian Lance Taylor  <iant@google.com>

	PR 10287
	PR 11063
	* i386.cc (class Target_i386): Change return type of plt_section
	to be non-const.
	(class Output_data_plt_i386): Add tls_desc_rel_ field.
	(Output_data_plt_i386::Output_data_plt_i386): Initialize
	tls_desc_rel_ field.
	(Output_data_plt_i386::rel_tls_desc): New function.
	(Target_i386::rel_tls_desc_section): New function.
	(Target_i386::Scan::local): Rewrite R_386_TLS_GOTDESC handling.
	(Target_i386::Scan::global): For R_386_TLS_GOTDESC put
	R_386_TLS_DESC reloc in rel_tls_desc_section.
	* x86_64.cc (class Target_x86_64): Add tlsdesc_reloc_info_ field.
	Define struct Tlsdesc_info.
	(Target_x86_64::Target_x86_64): Initialize tlsdesc_reloc_info_.
	(Target_x86_64::do_reloc_symbol_index): New function.
	(Target_x86_64::add_tlsdesc_info): New function.
	(class Output_data_plt_x86_64): Add tlsdesc_rel_ field.
	(Output_data_plt_x86_64::Output_data_plt_x86_64): Initialize
	tlsdesc_rel_ field.
	(Output_data_plt_x86_64::rela_plt): Rename from rel_plt.  Change
	all callers.
	(Output_data_plt_x86_64::rela_tlsdesc): New function.
	(Target_x86_64::rela_tlsdesc_section): New function.
	(Target_x86_64::Scan::local): Rewrite R_X86_64_GOTPC32_TLSDESC
	handling.
	(Target_x86_64::Scan::global): For R_X86_64_GOTPC32_TLSDESC put
	(Target_x86_64::do_reloc_addend): New function.
	R_X86_64_TLSDESC reloc in rela_tlsdesc_section.
	* output.h (class Output_reloc) [SHT_REL]: Add new constructor
	declarations.  Define TARGET_CODE.  Add arg field to u1_ union.
	(Output_reloc::type): New function.
	(Output_reloc::is_local_section_symbol): Check for TARGET_CODE.
	(Output_reloc::is_target_specific): New function.
	(Output_reloc::target_arg): New function.
	(class Output_reloc) [SHT_RELA]: Add four new constructors for
	absolute relocs and target specific relocs.
	(class Output_data_reloc) [SHT_REL]: Add add_absolute and
	add_target_specific.
	(class Output_data_reloc) [SHT_RELA]: Likewise.
	* output.cc (Output_reloc::Output_reloc): Add four new versions
	for absolute relocs and target specific relocs.
	(Output_reloc::set_needs_dynsym_index): Add TARGET_CODE case.
	(Output_reloc::get_symbol_index): Likewise.
	(Output_reloc::local_section_offset): Check that local_sym_index_
	is not TARGET_CODE or 0.
	(Output_reloc::symbol_value): Likewise.
	(Output_reloc::write) [SHT_RELA]: Call target for target specific
	reloc.
	* target.h (class Target): Add reloc_symbol_index and reloc_addend
	functions.  Add do_reloc_symbol_index and do_reloc_addend virtual
	functions.
	* layout.cc (add_target_dynamic_tags): Use output section for
	DT_PLTRELSZ and DT_JMPREL.

2010-01-07  Ian Lance Taylor  <iant@google.com>

	PR 11061
	* output.h (class Output_reloc) [SHT_RELA]: Add is_relative
	function.
	(class Output_data_reloc_generic): Define.
	(class Output_data_reloc_base): Change base class to
	Output_data_reloc_generic.  Change add() method to call
	bump_relative_reloc_count for a relative reloc.  Remove
	sort_relocs_ field.
	* output.cc (Output_data_reloc_base::do_write): Change sort_reloc_
	to sort_relocs().
	* layout.cc (Layout::add_target_dynamic_tags): Change dyn_rel to
	Output_data_reloc_generic*.  Add DT_RELCOUNT/DT_RELACOUNT tag if
	appropriate.
	* layout.h (class Layout): Update declaration.

2010-01-07  Ian Lance Taylor  <iant@google.com>

	* output.h (class Output_data): Add const version of
	output_section and do_output_section.
	(class Output_section_data): Add const version of
	do_output_section.
	(class Output_section): Likewise.
	* layout.cc (Layout::add_target_dynamic_tags): New function.
	* layout.h (class Layout): Update declarations.
	* arm.cc (Target_arm::do_finalize_sections): Use
	add_target_dynamic_tags.
	* i386.cc (Target_i386::do_finalize_sections): Likewise.
	* powerpc.cc (Target_powerpc::do_finalize_sections): Likewise.
	* sparc.cc (Target_sparc::do_finalize_sections): Likewise.
	* x86_64.cc (Target_x86_64::do_finalize_sections): Likewise.

2010-01-07  Ian Lance Taylor  <iant@google.com>

	PR 11042
	* copy-relocs.cc (Copy_relocs::emit_copy_reloc): Mark the dynamic
	object as needed.

2010-01-07  Dmitry Gorbachev  <d.g.gorbachev@gmail.com>
	    Ian Lance Taylor  <iant@google.com>

	PR 11019
	* object.cc: Instantiate Xindex::initialize_symtab_xindex and
	Xindex::read_symtab_xindex.

2010-01-07  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Insn_template::Type): New enum value THUMB16_SPECIAL_TYPE.
	(Insn_template::thumb16_bcond_insn): New method declaration.
	(Insn_template): Fix spelling.
	(Stub::thumb16_special): New method declaration.
	(Stub::do_write): Define virtual method which was previously pure
	virtual.
	(Stub::do_thumb16_special): New method declaration.
	(Stub::do_fixed_endian_write): New template member.
	(Reloc_stub::do_write): Remove.
	(Reloc_stub::do_fixed_endian_write): Remove.
	(Cortex_a8_stub): New class definition.
	(Stub_factory::make_cortex_a8_stub): New method definition.
	(Stub_factory::Stub_factory): Add missing static storage class
	qualifier for elf32_arm_stub_a8_veneer_blx.

2010-01-07  Ian Lance Taylor  <iant@google.com>

	PR 10980
	* options.h (class General_options): Add --warn-unresolved-symbols
	and --error-unresolved-symbols.
	* errors.cc (Errors::undefined_symbol): Implement
	--warn-unresolved-symbols.

	* options.h (class General_options): Add -z text and -z textoff.
	* layout.cc (Layout::finish_dynamic_section): Implement -z text.

2010-01-06  Sriraman Tallam  <tmsriram@google.com>

	* gc.h (Garbage_collection::Cident_section_map): New typedef.
	(Garbage_collection::cident_sections): New function.
	(Garbage_collection::add_cident_section): New function.
	(Garbage_collection::cident_sections_): New member.
	(gc_process_relocs): Add references to sections whose names are C
	identifiers.
	* gold.h (cident_section_start_prefix): New constant.
	(cident_section_stop_prefix): New constant.
	(is_cident): New function.
	* layout.cc (Layout::define_section_symbols): Replace string constants
	with the newly defined constants.
	* object.cc (Sized_relobj::do_layout): Track sections whose names are
	C identifiers.
	* testsuite/Makefile.am: Add gc_orphan_section_test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/gc_orphan_section_test.cc: New file.
	* testsuite/gc_orphan_section_test.sh: New file.

2010-01-06  Ian Lance Taylor  <iant@google.com>

	PR 10980
	* options.h (class General_options): Add --warn-shared-textrel.
	* layout.cc (Layout::finish_dynamic_section): Implement
	--warn-shared-textrel.

	PR 10980
	* options.h (class General_options): Add --warn-multiple-gp.

2010-01-06  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* Makefile.am (incremental_dump_DEPENDENCIES): Remove
	$(THREADSLIB) and $(LIBDL).
	* Makefile.in: Rebuild.

2010-01-06  Ian Lance Taylor  <iant@google.com>

	PR 10980
	* options.cc (General_options::parse_section_start): New function.
	(General_options::section_start): New function.
	(General_options::General_options): Initialize all members.
	* options.h: Include <map>
	(class General_options): Add --section-start.  Add section_starts_
	member.
	* layout.cc (Layout::attach_allocated_section_to_segment): If
	--section-start was used, set the address of the segment.  Remove
	local sort_sections.
	(Layout::relaxation_loop_body): If the address of the load segment
	has been set by --section-start, don't use it.
	* output.h (Output_segment::update_flags_for_output_section): New
	function.
	* output.cc (Output_segment::add_output_section): Call
	update_flags_for_output_section.

2010-01-05  Ian Lance Taylor  <iant@google.com>

	PR 10980
	* options.h (class General_options): Add --undefined-version.
	* script.cc (struct Version_expression): Add was_matched_by_symbol
	field.
	(Version_script_info::matched_symbol): New function.
	(Version_script_info::get_symbol_version_helper): Call
	matched_symbol.
	(Version_script_info::check_unmatched_names): New function.
	* script.h (class Version_script_info): Update declarations.
	* gold.cc (queue_middle_tasks): Handle --no-undefined-version.

	* options.h (class General_options): Use DEFINE_bool_alias for
	allow_multiple_definition.
	* resolve.cc (Symbol_table::should_override): Don't test
	allow_multiple_definition.

	PR 10980
	* options.h (class General_options): Add --cref.
	* main.cc (main): Print cref table if --cref.  Don't close mapfile
	until after printing cref table.
	* cref.cc: Include "symtab.h".
	(class Cref_inputs): Define Cref_table_compare and Cref_table.
	(Cref_table_compare::operator()): New function.
	(Cref_inputs::gather_cref): New function.
	(filecol): New static const.
	(Cref_inputs::print_cref): New function.
	(Cref::print_cref): New function.
	* cref.h: Include <cstdio>.
	(class Cref): Update declarations.
	* mapfile.h (Mapfile::file): New function.
	* object.h (class Object): Define Symbols.  Declare virtual
	do_get_global_symbols.
	(Object::get_global_symbols): New function.
	* object.cc (Input_objects::add_object): Pass object to cref_ if
	--cref.
	(Input_objects::archive_start): Likewise.
	(Input_objects::archive_stop): Likewise.
	(Input_objects::print_cref): New function.
	* dynobj.h (Sized_dynobj::do_get_global_symbols): New function.
	* dynobj.cc (big_endian>::do_add_symbols): Create symbols_ if
	--cref.
	* plugin.cc (Sized_pluginobj::do_get_global_symbols): New
	function.
	* plugin.h (class Sized_pluginobj): Update declarations.

2010-01-05  Ian Lance Taylor  <iant@google.com>

	* symtab.cc (Symbol_table::add_from_object): Rename def parameter
	to is_default_version.  Rename insdef to insdefault.
	(Symbol_table::add_from_relobj): Rename def to is_default_version
	and local to is_forced_local.
	(Symbol_table::add_from_pluginobj): Likewise.
	(Symbol_table::add_from_dynobj): Likewise.
	(Symbol_table::define_special_symbol): Rename insdef to
	insdefault.

2010-01-04  Ian Lance Taylor  <iant@google.com>

	PR 10980
	* options.h (class General_options): Add
	--allow-multiple-definition and -z muldefs.
	* resolve.cc (Symbol_table::should_override): Don't warn about a
	multiple symbol definition if --allow-multiple-definition or -z
	muldefs.

	PR 10980
	* options.h (class General_options): Add --add-needed and
	--copy-dt-needed-entries.  Tweak --as-needed help entry.
	* object.cc (Input_objects::check_dynamic_dependencies): Give an
	error if --copy-dt-needed-entries aka --add-needed is used and
	would cause a change in behaviour.

	PR 10980
	* options.h (class General_options): Add -G as a short version of
	--shared.  Add no-op options -assert, -g, and -i.

2010-01-04  Sriraman Tallam  <tmsriram@google.com>

	* gc.h (gc_process_relocs): Call is_section_foldable_candidate to
	check for .text or .gnu.linkonce.t sections.
	* icf.cc (Icf::find_identical_sections): Ditto.
	Change the detection for mangled function name within the section
	name.
	* icf.h (is_section_foldable_candidate): New function.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10980
	* options.h (class General_options): Permit two dashes with
	--retain-symbols-file.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10979
	* layout.cc (Layout::relaxation_loop_body): If -Ttext was used,
	don't put the file header and segment headers in the text
	segment.

	PR 10979
	* common.cc (Sort_commons::operator()): Stabilize sort when both
	entries are NULL.
	(Symbol_table::do_allocate_commons_list): When allocating common
	symbols, skip a symbol which is no longer common.
	* symtab.h (Symbol::is_common): Test whether the symbol comes from
	an object before checking its type.
	* testsuite/common_test_2.c: New file.
	* testsuite/common_test_3.c: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add common_test_2.
	(common_test_2_SOURCES, common_test_2_DEPENDENCIES): Define.
	(common_test_2_LDFLAGS, common_test_2_LDADD): Define.
	(common_test_2_pic.o, common_test_2.so): New targets.
	(common_test_3_pic.o, common_test_3.so): New targets.
	* testsuite/Makefile.in: Rebuild.

	PR 10979
	* script.cc (read_input_script): If we see a new SECTIONS clause,
	and we have added an input section, give an error.
	* layout.h (class Layout): Add have_added_input_section function.
	Add have_added_input_section_ field.
	* layout.cc (Layout::Layout): Initialize
	have_added_input_section_.
	(Layout::layout): Set have_added_input_section_.
	(Layout::layout_eh_frame): Likewise.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10931
	* options.h (class General_options): Add --sort-common option.
	* symtab.h (class Symbol_table): Define Sort_commons_order enum.
	* common.cc (Sort_common): Add sort_order parameter to
	constructor.  Add sort_order_ field.
	(Sort_commons::operator): Check sort_order_.
	(Symbol_table::allocate_commons): Determine the sort order.
	(Symbol_table::do_allocate_commons): Add sort_order parameter.
	Change all callers.
	(Symbol_table::do_allocate_commons_list): Likewise.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10916
	* symtab.cc (Symbol_table::add_from_relobj): When not exporting
	symbols from this object, don't change the visibility of an
	undefined symbol.
	* testsuite/exclude_libs_test_1.c (lib1_ref): New function.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10861
	* script.h (class Version_script_info): Define Language enum.
	Update declarations.  Define Glob, Exact, and Lookup types.  Add
	new fields globals_, locals_, and is_finalized_.
	* script.cc: Various formatting fixes.
	(class Parser_closure): Change language_stack_ from a vector of
	std::string to one of Version_script_info::Language.  Adjust all
	uses accordingly.
	(class Lazy_demangler): Remove.
	(struct Version_expression): Change language from std::string to
	Version_script_info::Language.
	(Version_script_info::Version_script_info): New function.
	(Version_script_info::~Version_script_info): Don't call clear.
	(Version_script_info::finalize): New function.
	(Version_script_info::build_lookup_tables): New function.
	(Version_script_info::build_expression_list_lookup): New
	function.
	(Version_script_info::get_symbol_version_helper): Rewrite to use
	lookup tables.
	(Version_script_info::print_expression_list): Adjust to use
	Version_script_info::Language.
	(script_push_lex_into_version_mode): Check that the version script
	has not been finalized.
	(version_script_push_lang): Change language string to
	Version_script_info::Language.
	* options.cc (Command_line::version_script): New function.
	* options.h (class General_options): Add finalize_dynamic_list
	function.  Change version_script from declaration to definition.
	* testsuite/ver_test_4.script: Remove duplicate def of t2_2.
	* testsuite/version_script.map: Remove duplicate def of foo.
	* testsuite/Makefile.am (ver_matching_def.so): Depend upon
	version_script.map.
	* testsuite/Makefile.in: Rebuild.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10843
	* target-reloc.h (relocate_for_relocatable): When copying a reloc,
	if the input symbol index is 0, make the output symbol index 0.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10670
	* options.h (class General_options): Add -x/--discard-all.
	* object.cc (Sized_relobj::do_count_local_symbols): Handle
	--discard-all.  If the local symbol needs a dynamic entry, check
	that before handling --discard-locals.

2009-12-30  Ian Lance Taylor  <iant@google.com>

	PR 10450
	* output.cc (Output_segment::Output_segment): If PT_TLS, set the
	flags to PF_R.
	(Output_segment::add_output_section): Don't change the flags if
	the type is PT_TLS.

	PR 10450
	* dynobj.cc (Dynobj::create_gnu_hash_table): Add symbols to the
	GNU hash table if they need a dynamic value.  Otherwise, don't add
	them if they are defined in a dynamic object or are forced local.

2009-12-29  Ian Lance Taylor  <iant@google.com>

	PR 10450
	* layout.cc (Layout::create_dynamic_symtab): Only set entsize of
	.gnu.hash table for a 32-bit target.

	PR 10450
	* symtab.h (Symbol::needs_dynsym_entry): A symbol in both a
	regular and a dynamic object only needs a dynamic symbol table
	entry if it is externally visible.

	PR 10450
	* i386.cc (class Target_i386): Initialize global_offset_table_ in
	constructor.  Add global_offset_table_ field.
	(Target_i386::got_section): Set global_offset_table_.
	(Target_i386::do_finalize_sections): Set global_offset_table_
	size.
	* x86_64.cc (class Target_x86_64): Initialize global_offset_table_
	in constructor.  Add global_offset_table_ field.
	(Target_x86_64::got_section): Set global_offset_table_.
	(Target_x86_64::do_finalize_sections): Set global_offset_table_
	size.

	* layout.cc (Layout::Layout): Initialize increase_relro_.
	(Layout::get_output_section): Add is_relro, is_last_relro, and
	is_first_non_relro parameters.  Change all callers.
	(Layout::choose_output_section): Likewise.
	(Layout::add_output_section_data): Likewise.
	(Layout::make_output_section): Likewise.
	(Layout::set_segment_offsets): Clear increase_relro when using a
	linker script.
	* layout.h (class Layout): Add increase_relro method.  Add
	increase_relro_ field.  Update declarations.
	* output.cc (Output_section::Output_section): Initialize
	is_last_relro_ and is_first_non_relro_.
	(Output_segment::add_output_section): Group relro sections is
	do_sort is true.  Handle is_last_relro and is_first_non_relro.
	(Output_segment::maximum_alignment): Remove relro handling.
	(Output_segment::set_section_addresses): Add increase_relro
	parameter.  Change all callers.  Add initial alignment to align
	relro sections on separate page.  Remove old relro handling.
	(Output_segment::set_section_list_addresses): Remove in_relro
	parameter.  Change all callers.
	(Output_segment::set_offset): Add increase parameter.  Change all
	callers.  Remove old relro handling.
	* output.h (class Output_section): Add new methods: is_last_relro,
	set_is_last_relro, is_first_non_relro, set_is_first_non_relro.
	Add is_last_relro_ and is_first_non_relro_ fields.
	* i386.cc (Target_i386::got_section): Don't call set_is_relro.
	Create separate .got.plt section.  Call increase_relro.
	* x86_64.cc (Target_x86_64::got_section): Likewise.
	* testsuite/relro_script_test.t: Add .got.plt.

	PR 10450
	* layout.cc (Layout::Layout): Initialize dynamic_symbol_ field.
	(Layout::create_initial_dynamic_sections): Set dynamic_symbol_.
	(Layout::finalize): Call set_dynamic_symbol_size.
	(Layout::set_dynamic_symbol_size): New function.
	* layout.h (class Layout): Add dynamic_symbol_ field.  Declare
	set_dynamic_symbol_size.

	PR 10450
	* output.h (class Output_section): Add is_entsize_zero_ field.
	* output.cc (Output_section::Output_section): Initialize
	is_entsize_zero_.
	(Output_section::set_entsize): If two different entsizes are
	requested, force it to zero.
	(Output_section::add_input_section): Set flags for .debug_str
	before updating section flags.  Set entsize.
	(Output_section::update_flags_for_input_section): Set SHF_MERGE
	and SHF_STRING if all input sections have those flags.

2009-12-29   Rafael Espindola  <espindola@google.com>

	* main.cc (main): Fix the sys time reporting.
	* workqueue.cc (Workqueue::find_and_run_task): Fix the sys time
	reporting.

2009-12-29  Sriraman Tallam  <tmsriram@google.com>

	* options.cc (General_options::parse_version): Allow -v to exit
	without an error if there is nothing to link.

2009-12-29  Ian Lance Taylor  <iant@google.com>

	* configure.ac: Set the MCMODEL_MEDIUM conditional to false if
	using a version of gcc before 4.1.
	* configure: Rebuild.

2009-12-28  Chris Demetriou  <cgd@google.com>

	* attributes.cc (Output_attributes_section_data::do_write): Use
	std::vector::front rather than std::vector::data.

2009-12-28  Ian Lance Taylor  <iant@google.com>

	* symtab.h (class Symbol_table): Add enum Defined.
	* resolve.cc (Symbol_table::should_override): Add defined
	parameter.  Change all callers.  Test whether object is NULL
	before calling a method on it.
	(Symbol_table::report_resolve_problem): Add defined parameter.
	Change all callers.
	(Symbol_table::should_override_with_special): Likewise.
	* symtab.cc (Symbol_table::define_in_output_data): Add defined
	parameter.  Change all callers.
	(Symbol_table::do_define_in_output_data): Likewise.
	(Symbol_table::define_in_output_segment): Likewise.
	(Symbol_table::do_define_in_output_segment): Likewise.
	(Symbol_table::define_as_constant): Likewise.
	(Symbol_table::do_define_as_constant): Likewise.
	* script.h (class Symbol_assignment): Add is_defsym parameter to
	constructor; change all callers.
	* script.cc (Script_options::add_symbol_assignment): Add is_defsym
	parameter.  Change all callers.  Add is_defsym_ field.
	(class Parser_closure): Add parsing_defsym parameter to
	constructor; change all callers.  Add parsing_defsym accessor
	function.  Add parsing_defsym_ field.

2009-12-28  Ian Lance Taylor  <iant@google.com>

	* gold.cc (queue_middle_tasks): Fix formatting.
	* object.cc (Relobj::is_section_name_included): Likewise.

2009-12-23  Ian Lance Taylor  <iant@google.com>

	* i386.cc (Target_i386::do_calls_non_split): Recognize
	-fsplit-stack prologue for a function with a static chain.
	* x86_64.cc (Target_x86_64::do_calls_non_split): Recognize
	-fsplit-stack prologue when using %r11.

2009-12-21  Sriraman Tallam  <tmsriram@google.com>

	* options.cc (General_options::parse_version): Make -v continue and do
	the link like GNU ld does.

2009-12-17  Rafael Avila de Espindola  <espindola@google.com>

	* Makefile.am (CCFILES): Add timer.cc.
	(HFILES): Add timer.h.
	* configure.ac: Check for sysconf and times.
	* main.cc: include timer.h.
	(main): Use Timer instead of get_run_time.
	* timer.cc: New.
	* timer.h: New.
	* workqueue.cc: include timer.h.
	(Workqueue::find_and_run_task):
	Report user, sys and wall time.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.

2009-12-16  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj::scan_sections_for_stubs): Exclude ICF-eliminated
	sections.
	* object.cc (Sized_relobj::do_finalize_local_symbols): Handle
	relaxed input sections.
	* output.cc (Output_section::find_relaxed_input_section): Change
	return type to Output_relaxed_input_section pointer.  Adjust code
	for new type of relaxed_input_section_map_.
	* output.h (Output_section::find_relaxed_input_section): Change
	return type to Output_relaxed_input_section pointer.
	(Output_section::Output_relaxed_input_section_by_input_section_map):
	New type.
	(Output_section::relaxed_input_section_map_): Change type to
	Output_section::Output_relaxed_input_section_by_input_section_map.
	* symtab.cc (Symbol_table::compute_final_value): Handle relaxed
	input section.

2009-12-15  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::create_shstrtab): Only write out after input
	sections if we are compressing debug sections.

2009-12-15  Ian Lance Taylor  <iant@google.com>

	* archive.cc (Archive::add_symbols): Only look up a symbol without
	a version if there is, in fact, a version.

2009-12-14  Ian Lance Taylor  <iant@google.com>

	Revert -Wshadow changes, all changes from:
	2009-12-11  Doug Kwan  <dougkwan@google.com>
	2009-12-11  Nick Clifton  <nickc@redhat.com>
	* configure.ac: Remove -Wshadow when setting WARN_CXXFLAGS.

2009-12-11  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::do_finalize_sections): Fix build breakage
	due to -Wshadow.
	* attributes.cc (Object_attribute::size): Ditto.
	(Attributes_section_data::size): Ditto.
	(Attributes_section_data::Attributes_section_data): Ditto.
	(Output_attributes_section_data::do_write): Ditto.
	* attributes.h (Object_attribute::set_type): Ditto.
	* testsuite/tls_test_main.cc (safe_lock, safe_unlock): Ditto.

2009-12-11  Nick Clifton  <nickc@redhat.com>

	* archive.cc: Fix shadowed variable warnings.
	* arm.cc: Likewise.
	* compressed_output.cc: Likewise.
	* compressed_output.h: Likewise.
	* configure: Likewise.
	* dwarf_reader.cc: Likewise.
	* dynobj.cc: Likewise.
	* dynobj.h: Likewise.
	* ehframe.cc: Likewise.
	* ehframe.h: Likewise.
	* errors.cc: Likewise.
	* expression.cc: Likewise.
	* fileread.cc: Likewise.
	* fileread.h: Likewise.
	* freebsd.h: Likewise.
	* i386.cc: Likewise.
	* icf.cc: Likewise.
	* incremental.h: Likewise.
	* layout.cc: Likewise.
	* layout.h: Likewise.
	* mapfile.cc: Likewise.
	* merge.cc: Likewise.
	* merge.h: Likewise.
	* object.cc: Likewise.
	* object.h: Likewise.
	* options.h: Likewise.
	* output.cc: Likewise.
	* output.h: Likewise.
	* parameters.cc: Likewise.
	* plugin.cc: Likewise.
	* powerpc.cc: Likewise.
	* reduced_debug_output.cc: Likewise.
	* reduced_debug_output.h: Likewise.
	* reloc.cc: Likewise.
	* reloc.h: Likewise.
	* resolve.cc: Likewise.
	* script-sections.cc: Likewise.
	* script.cc: Likewise.
	* script.h: Likewise.
	* sparc.cc: Likewise.
	* symtab.cc: Likewise.
	* symtab.h: Likewise.
	* target-select.cc: Likewise.
	* target-select.h: Likewise.
	* token.h: Likewise.
	* workqueue.cc: Likewise.
	* workqueue.h: Likewise.
	* x86_64.cc: Likewise.

2009-12-10  Doug Kwan  <dougkwan@google.com>

	* arm.cc (attributes.h): New include.
	(Arm_relobj::Arm_relobj): Initialize attributes_section_data_.
	(Arm_relobj::~Arm_relobj): Delete object pointed by
	attributes_section_data_.
	(Arm_relobj::attributes_section_data): New method definition.
	(Arm_relobj::attributes_section_data_): New data member declaration.
	(Arm_dynobj::Arm_dynobj): Initialize attributes_section_data_.
	(Arm_dynobj::~Arm_dynobj): Delete object pointed by
	attributes_section_data_.
	(Arm_dynobj::attributes_section_data): New method definition.
	(Arm_dynobj::attributes_section_data_): New data member declaration.
	(Target_arm::Target_arm): Initialize attributes_section_data_.  Change
	initialization value of may_use_blx_ to false.
   	(Target_arm::using_thumb2, Target_arm::using_thumb_only,
	Target_arm::may_use_arm_nop, Target_arm::may_use_thumb2_nop): Use
	object attributes to compute results instead of hard-coding.
	(Target_arm::do_attribute_arg_type, Target_arm::do_attributes_order,
	Target_arm::get_secondary_compatible_arch,
	Target_arm::set_secondary_compatible_arch
	Target_arm::tag_cpu_arch_combine, Target_arm::aeabi_enum_name,
	Target_arm::tag_cpu_name_value, Target_arm::merge_object_attributes):
	New method declarations.
	(Target_arm::get_aeabi_object_attribute): New method definition.
	(Target_arm::attributes_section_data_): New data member declaration.
	(read_arm_attributes_section): New template definition.
	(Arm_relobj::do_read_symbols): Read attributes section if it exists.
	(Arm_dynobj::do_read_symbols): Ditto.
	(Target_arm::do_finalize_sections): Merge attributes sections from
	input.  Check for BLX use after attributes section merging.
	Fix __exidx_start and __exidx_end visibility.  Create an
	.ARM.attributes section if necessary.
	(Target_arm::get_secondary_compatible_arch,
	Target_arm::set_secondary_compatible_arch,
	Target_arm::tag_cpu_arch_combine, Target_arm::aeabi_enum_name,
	Target_arm::tag_cpu_name_value, Target_arm::merge_object_attributes,
	Target_arm::do_attribute_arg_type, Target_arm::do_attributes_order): 
	New method definitions.

2009-12-09  Ian Lance Taylor  <iant@google.com>

	* plugin.cc (Plugin::load): Don't cast from void* to a function
	pointer.

2009-12-09  Ian Lance Taylor  <iant@google.com>

	* dynobj.cc (Sized_dynobj::do_read_symbols): Clear version
	information fields.

2009-12-09  H.J. Lu  <hongjiu.lu@intel.com>

	* testsuite/Makefile.am (two_file_shared_1_pic_2_test_DEPENDENCIES):
	Replace two_file_shared_1.so with two_file_shared_2.so.
	* testsuite/Makefile.in: Regenerated.

2009-12-08  Doug Kwan  <dougkwan@google.com>

	* Makefile.am (CCFILES): Add attributes.cc and int_encoding.cc.
	(HFILES): Add attributes.h and int_encoding.h.
	* Makefile.in: Regenerate.
	* dwarf_reader.cc (read_unsigned_LEB_128, read_signed_LEB_128): Move
	function definitions to int_encoding.cc
	* dwarf_reader.h (read_unsigned_LEB_128, read_signed_LEB_128): Move
	prototypes to int_encoding.h
	* reduced_debug_output.cc (int_encoding.h): New include.
	(write_unsigned_LEB_128, get_length_as_unsigned_LEB_128): Move
	function definitions to int_encoding.cc
	(insert_into_vector, read_from_pointer): Move template definitions to
	int_encoding.h
	* attributes.cc: New file.
	* attributes.h: New file.
	* int_encoding.cc: New file.
	* int_encoding.h: New file.

2009-12-07  Rafael Avila de Espindola  <espindola@google.com>

	PR gold/11055
	* incremental-dump.cc (dump_incremental_inputs): New.
	(main): Use dump_incremental_inputs.

2009-12-07  H.J. Lu  <hongjiu.lu@intel.com>

	PR gold/10893
	* i386.cc (Target_i386::Scan::globa): Use is_func instead of
	checking elfcpp::STT_FUNC.
	(Target_i386::Relocate::relocate): Likewise.
	* x86_64.cc (Target_x86_64::Scan::global): Likewise.

	* symtab.cc (Symbol_table::sized_write_symbol): Turn IFUNC
	symbols from shared libraries into normal FUNC symbols.

	* symtab.h (Symbol): Add is_func and use it.

2009-12-05  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::arm_info): Initialize new fields
	attributes_section and attributes_vendor.
	* i386.cc (Target_i386::i386_info): Same.
	* object.cc (Sized_relobj::do_layout): Skip attribute section.
	* gold/powerpc.cc (Target_powerpc::powerpc_info): Initialize new
	fields attributes_section and attributes_vendor.
	* sparc.cc (Target_sparc::sparc_info): Same.
	* target.h (Target::attributes_section, Target::attributes_vendor,
	Target::is_attributes_section, Target::attribute_arg_type,
	Target::attributes_order): New method definitions.
	(Target::Target_info::attributes_section,
	Target::Target_info::attributes_vendor): New fields.
	(Target::do_attribute_arg_type, Target::do_attributes_order): New
	virtual method definitions.
	* x86_64.cc (Target_x86_64::x86_64_info): Initialize new fields
	attributes_section and attributes_vendor.
	* testsuite/testfile.cc (Target_test::test_target_info): Same.

2009-12-05  Doug Kwan  <dougkwan@google.com>

	* arm.cc: Update comments about interworking and stub generation.
	(Target_arm::Relocate::reloc_is_non_pic): Update list of relocations
	considered as non-PIC.
	(Arm_relocate_functions::base_abs): Fix formatting.
	(Arm_relocate_functions::got_prel): Fix comment.  Change interface
	of function to use GOT entry address instead of offset.
	(Target_arm::Scan::global): Issue an error if a symbol would need a
	PLT does not get one because it is untyped.  Remove code to create
	dynamic symbols for relative branches.
	(Target_arm::Relocate::relocate: Use 0 instead of false since function
	takes unsigned integer instead of boolean.

2009-12-05  H.J. Lu  <hongjiu.lu@intel.com>

	* testsuite/Makefile.am (constructor_test_LDADD): New. Empty.
	(two_file_test_LDADD): Likewise.
	(common_test_1_LDADD): Likewise.
	(exception_test_LDADD) Likewise.
	(weak_test_LDADD): Likewise.
	(many_sections_test_LDADD): Likewise.
	(initpri1_LDADD): Likewise.
	(script_test_1_LDADD): Likewise.
	(script_test_2_LDADD): Likewise.
	(justsyms_LDADD): Likewise.
	(binary_test_LDADD): Likewise.
	(large_LDADD): Likewise.
	* testsuite/Makefile.in: Regenerated.

2009-12-04  H.J. Lu  <hongjiu.lu@intel.com>

	* resolve.cc (symbol_to_bits): Treat STB_GNU_UNIQUE as STB_GLOBAL.
	(Symbol_table::override_with_special): Likewise.
	(Symbol_table::add_from_object): Likewise.

2009-12-04  Rafael Avila de Espindola  <espindola@google.com>

	* incremental.cc (Incremental_inputs::sized_create_inputs_section_data):
	Don't set the data_offset twice.

2009-12-04  Rafael Avila de Espindola  <espindola@google.com>

	* testsuite/Makefile.in: Regenerate.

2009-12-03  Doug Kwan  <dougkwan@google.com>

	* arm.cc: Remove comment about missing .ARM.exidx section symbols.
	(Target_arm::do_finalize_sections): Add parameter for symbol table
	pointer.  Add __exidx_start and __exidx_end symbols as appropriate.
	* i386.cc (Target_i386::do_finalize_sections): Add an additional
	parameter for symbol table pointer.
	* layout.cc (Layout::finalize): Call Target::finalize_sections with
	an additional parameter for a pointer to symbol table.
	* powerpc.cc (Target_powerpc::do_finalize_sections): Add an additional
	parameter for a symbol table pointer.
	* sparc.cc (Target_sparc::do_finalize_sections): Ditto.
	* target.h (Target::finalize_sections, Target::do_finalize_sections):
	Ditto.
	* x86_64.cc (Target_x86_64::do_finalize_sections): Add an additional
	parameter for a symbol table pointer.

2009-12-03  Rafael Avila de Espindola  <espindola@google.com>

	* incremental.cc (Incremental_inputs_header)
	(Incremental_inputs_header_write, Incremental_inputs_entry)
	(Incremental_inputs_entry_write): Move ...
	* incremental.h (Incremental_inputs_header)
	(Incremental_inputs_header_write, Incremental_inputs_entry)
	(Incremental_inputs_entry_write): here.

2009-12-02  Rafael Avila de Espindola  <espindola@google.com>

	* incremental.cc (make_sized_incremental_binary): Set the target.
	Error if it is incompatible.
	* output.h (Output_file): Add filename method.

2009-12-02  Rafael Avila de Espindola  <espindola@google.com>

	* incremental.cc (Incremental_inputs_entry): Remove unused argument
	from the get_* methods.

2009-12-02  Rafael Avila de Espindola  <espindola@google.com>

	* incremental-dump.cc (main): Check that the offeset of a script is 0.
	* incremental.cc (Incremental_inputs::sized_create_inputs_section_data):
	Write 0 for the data_offset of scripts.

2009-12-02  Rafael Avila de Espindola  <espindola@google.com>

	* testsuite/Makefile.am: Add the incremental_test.sh test.
	* testsuite/incremental_test.sh: New.
	* testsuite/incremental_test_1.c: New.
	* testsuite/incremental_test_2.c: New.

2009-12-01  Rafael Avila de Espindola  <espindola@google.com>

       * incremental-dump.cc (main): Fix typos.

2009-11-27  Rafael Avila de Espindola  <espindola@google.com>

	PR gold/11025
	* incremental-dump.cc (main): Use llu to print 64 bit values.

2009-11-26  Per Øyvind Karlsen <peroyvind@mandriva.org>
	    H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.am (incremental_dump_DEPENDENCIES): Add $(THREADSLIB)
	$(LIBDL).
	(incremental_dump_LDADD): Likewise.
	* Makefile.in: Regenerated.

2009-11-25  Doug Kwan  <dougkwan@google.com>
	
	Revert:

	2009-11-25  Doug Kwan  <dougkwan@google.com>

		* arm.cc (Target_arm::Target_arm): Move method definition
		outside of class definition.  Add code to handle
		--target1-rel, --target1-abs and --target2= options.
		(Target_arm::get_reloc_reloc_type): Change method to be
		non-static and const.
		(Target_arm::target1_is_rel_, Target_arm::target2_reloc_):
		New data member declaration.
		(Target_arm::Scan::local, Target_arm::Scan::global,
		Target_arm::Relocate::relocate,
		Target_arm::Relocatable_size_for_reloc::get_size_for_reloc):
		Adjust call to Target_arm::get_real_reloc_type.
		(Target_arm::get_real_reloc_type): Use command line options
		to determine real types of R_ARM_TARGET1 and R_ARM_TARGET2.
		* options.h (--target1-rel, --target1-abs, --target2): New
		ARM-only options.

2009-11-25  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::Target_arm): Move method definition outside of
	class definition.  Add code to handle --target1-rel, --target1-abs
	and --target2= options.
	(Target_arm::get_reloc_reloc_type): Change method to be non-static
	and const.
	(Target_arm::target1_is_rel_, Target_arm::target2_reloc_): New data
	member declaration.
	(Target_arm::Scan::local, Target_arm::Scan::global,
	Target_arm::Relocate::relocate,
	Target_arm::Relocatable_size_for_reloc::get_size_for_reloc): Adjust
	call to Target_arm::get_real_reloc_type.
	(Target_arm::get_real_reloc_type): Use command line options to
	determine real types of R_ARM_TARGET1 and R_ARM_TARGET2.
	* options.h (--target1-rel, --target1-abs, --target2): New ARM-only
	options.

2009-11-25  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::may_use_thumb2_nop): New method definition.
	(Arm_relocate_functions::thumb_branch_common): New metod declaration.
	(Arm_relocate_functions::abs12, Arm_relocate_functions::abs16): Fix
	formatting.
	(Arm_relocate_functions::thm_call): Replace body with a call to
	Arm_relocate_functions::thumb_branch_common.
	(Arm_relocate_functions::thm_jump24,
	Arm_relocate_functions::thm_xpc22): New method definitions.
	(Arm_relocate_functions::thumb_branch_common): New method definition.
	(Reloc_stub::stbu_type_for_reloc): Fix incorrect uses of bit-wise-or
	operator.
	(Target_arm::Relocate::relocate): Adjust call to thm_call.
	Add code to handle R_ARM_THM_XPC22 and R_ARM_THM_JUMP24.

2009-11-24  Rafael Avila de Espindola  <espindola@google.com>

	* Makefile.am: Build incremental-dump
	* Makefile.in: Regenerate.
	* incremental-dump.cc: New.
	* incremental.cc (Incremental_inputs_header_data,
	Incremental_inputs_entry_data): Move to incremental.h
	* incremental.h: (Incremental_inputs_header_data,
	Incremental_inputs_entry_data): Move from incremental.cc

2009-11-24  Rafael Avila de Espindola  <espindola@google.com>

	* incremental.cc (Incremental_inputs_header,
	Incremental_inputs_header_write, Incremental_inputs_entry,
	Incremental_inputs_entry_write): Add a typedef with the data type.

2009-11-24  Rafael Avila de Espindola  <espindola@google.com>

	* incremental.cc (Incremental_inputs_header,
	Incremental_inputs_header_write, Incremental_inputs_entry,
	Incremental_inputs_entry_write): Update comment about which
	type has the filed descriptions.

2009-11-15  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::may_use_arm_nop): New method definition.
	(Arm_relocate_functions::arm_branch_common): Change method defintion
	in class definition to a method declaration and update list of formal
	parameters.
	(Arm_relocate_functions::plt32, Arm_relocate_functions::call,
	Arm_relocation_functions::jump24): Adjust call to
	Arm_relocate_functions::arm_branch_common.  Update list of formal
	parameters.
	(Arm_relocate_functions::xpc25): New method definition.
	(Arm_relocate_functions::arm_branch_common): Move method defintion
	out from class definition.  Use stubs for mode-switching and extending
	branch ranges.
	(Target_arm::Relocate::relocate): Handle weakly-undefined symbols
	specially.  Change code to enable use of stubs in ARM branches.

2009-11-10  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj::do_relocate_sections): Remove options parameter
	in method declaration.
	(Target_arm::relocate_stub): New method declaration.
	(Target_arm::default_target): Change to return a pointer instead of
	a const reference.
	(Reloc_stub::stub_type_for_reloc): Adjust for the change in
	Target_arm::default_target.
	(Arm_Relobj::do_relocate_sections): Remove options paramater in
	method definition.
	(Target_arm::relocate_section): Adjust view.
	(Target_arm::relocate_stub): New method definition.

2009-11-10  Doug Kwan  <dougkwan@google.com>

	* i386.cc (Target_i386::do_calls_non_split): Add a cast to avoid
	a format warning.
	* incremental.cc (open_incremental_binary): Initialized local
	variables to avoid warnings.
	* object.cc (make_elf_object): Ditto.
	* x86_64.cc (Target_x86_64::do_calls_non_split): Add a cast to avoid
	a format warning.
 
009-11-09  H.J. Lu  <hongjiu.lu@intel.com>

	PR gold/10930
	* testsuite/plugin_test.c: Include "config.h".

2009-11-09  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::fake_relnum_for_stubs): New constant.
	(arm_symbol_value): Remove.
	(Arm_relocate_functions::arm_branch_common,
	Arm_relocate_functions::abs8, Arm_relocate_functions::thm_abs5,
	Arm_relocate_functions::abs12, Arm_relocate_functions::abs16,
	Arm_relocate_functions::abs32, Arm_relocate_functions::rel32,
	Arm_relocate_functions::thm_call, Arm_relocate_functions::plt32,
	Arm_relocate_functions::call, Arm_relocate_functions::jump24,
	Arm_relocate_functions::prel31, Arm_relocate_functions::mov_abs_nc,
	Arm_relocate_functions::movt_abs, Arm_relocate_functions::movw_abs_nc,
	Arm_relocate_functions::thm_mobw_abs_nc,
	Arm_relocate_functions::thm_mov_abs,
	Arm_relocate_functions::movw_prel_nc,
	Arm_relocate_functions::thm_movt_abs,
	Arm_relocate_functions::movt_prel,
	Arm_relocate_functions::thm_movw_prel_nc,
	Arm_relocate_functions::thm_movt_prel): Adjust callers of the above.
	(Target_arm::Relocate::relocate): Only decompose address into two
	parts if relocation type uses the thumb-bit and pass the actual
	bit instead of a flag indicating that the thumb-bit is used.  Adjust
	calls to methods in Arm_relocate_functions for this change.

2009-11-08  Ian Lance Taylor  <iant@google.com>

	PR 10925
	* reloc.cc: Instantiate
	Sized_relobj::initialize_input_to_output_maps and
	Sized_relobj:free_input_to_output_maps.

2009-11-06  Ian Lance Taylor  <iant@google.com>

	PR 10876
	* defstd.cc (in_segment): Set only_if_ref true for "end".

2009-11-06  Doug Kwan  <dougkwan@google.com>

	* arm.cc (class Reloc_stub): Correct a comment.
	(Target_arm::Target_arm): Initialize arm_input_section_map_.
	(Target_arm::scan_section_for_stubs): New method declaration.
	(Target_arm::do_make_elf_object, Target_arm::do_make_output_section):
	Change methods from private to protected.
	(Target_arm::do_may_relax): New method definition.
	(Target_arm::do_relax, Target_arm::group_sections,
	Target_arm::scan_reloc_for_stub,
	Target_arm::scan_reloc_section_for_stubs): New method declarations.
	(Target_arm::arm_input_section_map_): New data member declaration.
	(Target_arm::scan_reloc_for_stub,
	Target_arm::scan_reloc_section_for_stubs,
	Target_arm::scan_section_for_stubs, Target_arm::group_sections,
	Target_arm::do_relax): New method definitions.

2009-11-06  Mikolaj Zalewski  <mikolaj@google.com>

	* configure.ac: Check for (struct stat)::st_mtim
	* fileread.cc (File_read::get_mtime): Use st_mtim if available.
	* config.in: Regenerate.
	* configure: Regenerate.

2009-11-05  Ian Lance Taylor  <iant@google.com>

	PR 10910
	* output.cc (Output_segment::add_output_section): Add missing
	return statement.

2009-11-04  Ian Lance Taylor  <iant@google.com>

	PR 10880
	* object.h (class Object): Add is_needed and set_is_needed
	methods.  Add is_needed_ field.  Make bool fields into bitfields.
	* symtab.cc (Symbol_table::set_dynsym_indexes): If a symbol is
	defined in a dynamic object and referenced by a regular object,
	set is_needed for the dynamic object.
	* layout.cc (Layout::finish_dynamic_section): Don't add DT_NEEDED
	if the file is marked with as_needed and it is not needed.

2009-11-04  Ian Lance Taylor  <iant@google.com>

	PR 10887
	* arm.cc (Target_arm::do_finalize_sections): Don't add dynamic
	tags if data is discarded by linker script.
	* i386.cc (Target_i386::do_finalize_sections): Likewise.
	* powerpc.cc (Target_powerpc::do_finalize_sections): Likewise.
	* sparc.cc (Target_sparc::do_finalize_sections): Likewise.
	* x86_64.cc (Target_x86_64::do_finalize_sections): Likewise.

2009-11-04  Ian Lance Taylor  <iant@google.com>

	* layout.cc (Layout::get_output_section): Add is_interp and
	is_dynamic_linker_section parameters.  Change all callers.
	(Layout::choose_output_section): Likewise.
	(Layout::make_output_section): Likewise.
	(Layout::add_output_section_data): Add is_dynamic_linker_section
	parameter.  Change all callers.
	* layout.h (class Layout): Update declarations.
	* output.h (class Output_section): Add is_interp, set_is_interp,
	is_dynamic_linker_section, set_is_dynamic_linker_section methods.
	Add is_interp_, is_dynamic_linker_section_ fields.  Change
	generate_code_fills_at_write_ to a bitfield.
	* output.cc (Output_section::Output_sections): Initialize new
	fields.
	(Output_segment::add_output_section): Add do_sort parameter.
	Change all callers.

2009-11-03  Ian Lance Taylor  <iant@google.com>

	PR 10860
	* options.h (class General_options): Add --warn-common.
	* resolve.cc (Symbol_table::resolve): Handle --warn-common when
	merging two common symbols.
	(Symbol_table::should_override): Handle --warn-common when merging
	a common symbol with a defined symbol.  Use report_resolve_problem
	for multiple definitions.
	(Symbol_table::report_resolve_problem): New function.
	* symtab.h (class Symbol_table): Declare report_resolve_problem.

2009-11-03  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::Target_arm): Initialize stub_tables_ and
	stub_factory_.
	(Target_arm::stub_factory): New method definition.
	(Target_arm::new_arm_input_section,
	Target_arm::find_arm_input_section, Target_arm::new_stub_table,
	Target_arm::reloc_uses_thumb_bit): New method declarations.
	(Target_arm::Stub_table_list, Target_arm::Arm_input_section_map): 
	New type definitions.
	(Target_arm::stub_tables_, Target_arm::stub_factory_): New data
	member declarations.
	(Target_arm::reloc_uses_thumb_bit, Target_arm::new_arm_input_section,
	Target_arm::find_arm_input_section, Target_arm::new_stub_table):
	New method definitions.

2009-11-03  Ian Lance Taylor  <iant@google.com>

	* options.h (class General_options): Add --warn_constructors.

2009-11-03  Ian Lance Taylor  <iant@google.com>

	PR 10893
	* defstd.cc (in_section): Add entries for __rel_iplt_start,
	__rel_iplt_end, __rela_iplt_start, __rela_iplt_end, and __stack.

2009-11-03  Ian Lance Taylor  <iant@google.com>

	PR 10895
	* po/Make-in ($(srcdir)/$(PACKAGE).pot): Pass -C and
	--msgid-bugs-address.
	(install-pdf): New target.
	(install-data_yes): Look up one directory to find mkinstalldirs.

2009-11-03  H.J. Lu  <hongjiu.lu@intel.com>

	* po/Make-in (.po.gmo): Don't generate .gmo files in source
	tree.

2009-10-30  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Stub_addend_reader): Fix bug in previouls check-in.

2009-10-30  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Stub_addend_reader): New struct template definition
	and partial specializations.
	(Stub_addend_reader::operator()): New method definition for a
	partially specialized template.

2009-10-30  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj::processor_specific_flags): New method
	definition.
	(Arm_relobj::do_read_symbols): New method declaration.
	(Arm_relobj::processor_specific_flags_): New data member declaration.
	(Arm_dynobj): New class definition.
	(Target_arm::do_finalize_sections): Add input_objects parameter.
	(Target_arm::do_adjust_elf_header): New method declaration.
	(Target_arm::are_eabi_versions_compatible,
	(Target_arm::merge_processor_specific_flags): New method declaration.
	(Target_arm::do_make_elf_object): New overloaded method definitions
	and declaration.
	(Arm_relobj::do_read_symbols): New method definition.
	(Arm_dynobj::do_read_symbols): Ditto.
	(Target_arm::do_finalize_sections): Add input_objects parameters.
	Merge processor-specific flags from all input objects.
	(Target_arm::are_eabi_versions_compatible,
	Target_arm::merge_processor_specific_flags,
	Target_arm::do_adjust_elf_header, Target_arm::do_make_elf_object):
	New method definitions.
	* i386.cc (Target_i386::do_finalize_sections): Add unnamed
	Input_objects pointer type parameter.
	* layout.cc (Layout::finalize): Pass input objects to target's.
	finalize_sections function.
	* output.cc (Output_file_header::do_sized_write): Set ELF file
	header's processor-specific flags.
	* powerpc.cc (Target_powerpc::do_finalize_sections): Add unnamed
	Input_objects pointer type parameter.
	* sparc.cc (Target_sparc::do_finalize_sections): Same.
	* target.h (Input_objects): New forward class declaration.
	(Target::processor_specific_flags,
	Target::are_processor_specific_flags_sect): New method definitions.
	(Target::finalize_sections): Add input_objects parameter.
	(Target::Target): Initialize processor_specific_flags_ and
	are_processor_specific_flags_set_.
	(Target::do_finalize_sections): Add unnamed Input_objects pointer type
	parameter.
	(Target::set_processor_specific_flags): New method definition.
	(Target::processor_specific_flags_,
	Target::are_processor_specific_flags_set_): New data member
	declarations.
	* x86_64.cc (Target_x86_64::do_finalize_sections): Add unnamed
	Input_objects pointer type parameter.

2009-10-30  Doug Kwan  <dougkwan@google.com>

	* arm.cc: Use Arm_address instead of elfcpp::Elf_types<32>::Elf_Addr.

2009-10-28  Ian Lance Taylor  <iant@google.com>

	* object.h (class Relobj): Drop options parameter from
	gc_process_relocs, scan_relocs, relocate, do_gc_process_relocs,
	do_scan_relocs, do_relocate.  Change all callers.
	(class Sized_relobj): Drop options parameters from
	do_gc_process_relocs, do_scan_relocs, do_relocate,
	do_relocate_sections, relocate_sections, emit_relocs_scan,
	emit_relocs_scan_reltype.  Change all callers.
	(struct Relocate_info): Remove options field and all references to
	it.
	* reloc.h (class Read_relocs): Remove options constructor
	parameter and options_ field.  Change all callers.
	(class Gc_process_relocs, class Scan_relocs): Likewise.
	(class Relocate_task): Likewise.
	* target-reloc.h (scan_relocs): Remove options parameter.  Change
	all callers.
	(scan_relocatable_relocs): Likewise.
	* target.h (class Sized_target): Remove options parameter from
	gc_process_relocs, scan_relocs, scan_relocatable_relocs.  Change
	all callers.
	* gc.h (gc_process_relocs): Remove options parameter.  Change all
	callers.
	* arm.cc: Update functions to remove options parameters.
	* i386.cc: Likewise.
	* powerpc.cc: Likewise.
	* sparc.cc: Likewise.
	* x86_64.cc: Likewise.
	* testsuite/testfile.cc: Likewise.

2009-10-28  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_relobj): New class definition.
	(Arm_relobj::scan_sections_for_stubs, 
	Arm_relobj::do_count_local_symbols, Arm_relobj::do_relocate_sections):
	New method definitions.

2009-10-28  Cary Coutant  <ccoutant@google.com>

	* plugin.h (Plugin::Plugin): Initialize cleanup_done_.
	(Plugin::cleanup_done_): New member.
	(Plugin_manager::Plugin_manager): Remove cleanup_done_.
	(Plugin_manager::cleanup_done_): Remove.
	(Plugin_manager::add_input_file): Edit error message.
	* plugin.cc (Plugin::cleanup): Test and set cleanup_done_.
	(Plugin_manager::cleanup): Remove use of cleanup_done_.

2009-10-27  Mikolaj Zalewski  <mikolajz@google.com>

	* fileread.cc: (File_read::View::~View): Use the new
	data_ownership_ filed.
	(File_read::~File_read): Dispose the new whole_file_view_.
	(File_read::open): Mmap the whole file if needed.
	(File_read::open): Use whole_file_view_ instead of contents_.
	(File_read::find_view): Use whole_file_view_ if applicable.
	(File_read::do_read): Use whole_file_view_ instead of contents_.
	(File_read::make_view): Use whole_file_view_ instead of contents_,
	update File_read::View::View call.
	(File_read::find_or_make_view): Update File_read::View::View
	call.
	* fileread.h: (File_read::File_read): Initialize whole_file_view_,
	remove contents_
	(File_read::View::Data_ownership): New enum.
	(File_read::View::View): Replace bool mapped_ with Data_ownership
	argument.
	(File_read::View::mapped_): Remove (replaced by data_ownership_).
	(File_read::View::data_ownership_): New field.
	(File_read::contents_): Remove (replaced by whole_file_view_).
	(File_read::whole_file_view_): New field.
	* options.h (class General_options): Add --keep-files-mapped.

2009-10-27  Cary Coutant  <ccoutant@google.com>

	* symtab.cc (add_from_pluginobj): Pass correct value for is_ordinary.
	* testsuite/Makefile.am (plugin_test_5): New test case.
	* testsuite/Makefile.in: Regenerate.

2009-10-25  Doug Kwan  <dougkwan@google.com>

	* object.h (Sized_relobj::View_size, Sized_relobj::Views): Change
	from private to protected to allow access by child class.
	(Sized_relobj::do_relocate_sections): New method declaration.
	(Sized_relobj::relocate_sections): Virtualize.
	* reloc.cc (Sized_relobj::do_relocate_sections): Rename from 
	Sized_relobj::relocate_sections.  Instantiate template explicitly
	for different target sizes and endianity.

2009-10-24  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_output_section, Arm_relobj): Forward class declarations.
	(Arm_input_section::as_arm_input_section): New method.
	(Arm_output_section): New class definition.
	(Arm_output_section::create_stub_group,
	Arm_output_section::group_sections): New method definitions.

2009-10-22  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Arm_input_section): New class definition.
	(Arm_input_section::init, Arm_input_section:do_write,
	Arm_input_section::set_final_data_size,
	Arm_input_section::do_reset_address_and_file_offset): New method
	definitions.

2009-10-21  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Stub_table, Arm_input_section): New forward class
	declarations.
	(Stub_table): New class defintion.
	(Stub_table::add_reloc_stub, Stub_table::relocate_stubs
	Stub_table::do_reset_address_and_file_offset, Stub_table::do_write):
	New method definition.

2009-10-21  Doug Kwan  <dougkwan@google.com>

	* arm.cc: Update copyright comments.
	(Target_arm): New forward class template declaration.
	(Arm_address): New type.
	(ARM_MAX_FWD_BRANCH_OFFSET, ARM_MAX_BWD_BRANCH_OFFSET,
	THM_MAX_FWD_BRANCH_OFFSET, THM_MAX_BWD_BRANCH_OFFSET,
	THM2_MAX_FWD_BRANCH_OFFSET, THM2_MAX_BWD_BRANCH_OFFSET): New
	constants.
	(Insn_template): Same.
	(DEF_STUBS): New macro.
	(Stub_type): New enum type.
	(Stub_template): New class definition.
	(Stub): Same.
	(Reloc_stub): Same.
	(Stub_factory): Same.
	(Target_arm::Target_arm): Initialize may_use_blx_ and
	should_force_pic_veneer_.
	(Target_arm::may_use_blx, Target_arm::set_may_use_blx,
	Target_arm::should_force_pic_veneer,
	Target_arm::set_should_force_pic_veneer, Target_arm::using_thumb2,
	Target_arm::using_thumb_only, Target_arm:;default_target): New
	method defintions.
	(Target_arm::may_use_blx_, Target_arm::should_force_pic_veneer_):
	New data member declarations.
	(Insn_template::size, Insn_template::alignment): New method defintions.
	(Stub_template::Stub_template): New method definition.
	(Reloc_stub::Key::name, Reloc_stub::stub_type_for_reloc,
	Reloc_stub::do_fixed_endian_write, Reloc_stub::do_write): Same.
	(Stub_factory::Stub_factory): New method definition.
	* gold.h (string_hash): New template.
	* output.h (Input_section_specifier::hash_value): Use
	gold::string_hash.
	(Input_section_specifier::string_hash): Remove.
	* stringpool.cc (Stringpool_template::string_hash): Use
	gold::string_hash.

2009-10-20  Doug Kwan  <dougkwan@google.com>

	* object.cc (Sized_relobj::do_finalize_local_symbols): Handle section
	symbols of relaxed input sections.
	* output.h (Output_section::find_relaxed_input_section): Make
	method public.

2009-10-16  Doug Kwan  <dougkwan@google.com>

	* dynobj.cc (Versions::Versions): Initialize version_script_.
	Only insert base version symbol definition for a shared object
	if version script defines any version versions.
	(Versions::define_base_version): New method definition.
	(Versions::add_def): Check that base version is not needed.
	(Versions::add_need): Define base version lazily.
	* dynobj.h (Versions::define_base_version): New method declaration.
	(Versions::needs_base_version_): New data member declaration.
	* testsuite/Makefile.am (check_SCRIPTS): Add no_version_test.sh
	(check_DATA): Add no_version_test.stdout.
	(libno_version_test.so, no_version_test.o no_version_test.stdout):
	New make rules.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/no_version_test.c: New file.
	* testsuite/no_version_test.sh: Ditto.

2009-10-16  Doug Kwan  <dougkwan@google.com>

	* expression.cc (class Segment_start_expression): New class definition.
	(Segment_start_expression::value): New method definition.
	(script_exp_function_segment_start): Return a new
	Segment_start_expression.
	* gold/script-c.h (script_saw_segment_start_expression): New function
	prototype.
	* script-sections.cc (Script_sections::Script_sections): Initialize
	SAW_SEGMENT_START_EXPRESSION_ to false.
	(Script_sections::set_section_addresses): Use -Ttext, -Tdata
	and -Tbbs options to specify section addresses if given in
	command line and no SEGMENT_START expression is seen in a script.
	* script-sections.h (Script_sections::saw_segment_start_expression,
	Script_sections::set_saw_segment_start_expression): New method
	definition.
	(Script_sections::saw_segment_start_expression_): New data member
	declaration.
	* script.cc (script_saw_segment_start_expression): New function.
	* yyscript.y (SEGMENT_START): Call script_saw_segment_start_expression.
	* testsuite/Makefile.am (check_SCRIPTS): Add script_test_6.sh,
	script_test_7.sh and script_test_8.sh.
	(check_DATA): Add script_test_6.stdout, script_test_7.stdout and
	script_test_8.stdout.
	(MOSTLYCLEANFILES): Add script_test_6, script_test_7 and script_test_8.
	(script_test_6, script_test_6.stdout, script_test_7,
	script_test_7.stdout, script_test_8, script_test_8.stdout): New rules.
	* Makefile.in: Regenerate.
	* testsuite/script_test_6.sh: New file.
	* testsuite/script_test_6.t: Same.
	* testsuite/script_test_7.sh: Same.
	* testsuite/script_test_7.t: Same.
	* testsuite/script_test_8.sh: Same.

2009-10-16  Doug Kwan  <dougkwan@google.com>

	* output.cc (Output_segment::set_section_list_address): Cast
	expressions to unsigned long long type to avoid format warnings.

2009-10-15  Ian Lance Taylor  <iant@google.com>

	* script.cc (Script_options::add_symbol_assignment): Always add a
	dot assignment to script_sections_.
	* script-sections.cc (Script_sections::add_dot_assignment):
	Initialize if necessary.

	* layout.cc (Layout::relaxation_loop_body): Don't crash if we see
	program headers with no load segment if there is a linker script.

	* layout.cc (Layout::set_segment_offsets): Align the file offset
	to the segment aligment for -N or -n with no load segment.
	* output.cc (Output_segment::add_output_section): Don't crash if
	the first section is a TLS section.
	(Output_segment::set_section_list_addresses): Print an error
	message if the address moves backward in a linker script.
	* script-sections.cc
	(Output_section_element_input::set_section_addresses): Don't
	increase *dot_value for a SHF_TLS/SHT_NOBITS section.
	(Orphan_output_section::set_section_addresses): Likewise.

2009-10-15  Doug Kwan  <dougkwan@google.com>

	* layout.cc (Layout::finish_dynamic_section): Generate tags
	DT_FINI_ARRAY, DT_FINI_ARRAYSZ, DT_INIT_ARRAY, DT_INIT_ARRAYSZ,
	DT_PREINIT_ARRAY, DT_PREINIT_ARRAYSZ as needed. If -Bsymbolic is
	used, add DT_SYMBOLIC and set DF_SYMBOLIC in DT_FLAGS.

2009-10-14  Ian Lance Taylor  <iant@google.com>

	* object.h (class Relocate_info): Add reloc_shdr and data_shdr
	fields.
	* object.cc (Sized_relobj::relocate_sections): Set reloc_shdr and
	data_shdr fields of relinfo.
	* i386.cc (class Target_i386::Relocate): Remove ldo_addrs_ field.
	(Target_i386::Relocate::relocate_tls): Don't call fix_up_ldo.  For
	R_386_TLS_LDO_32, adjust based on section flags.
	(Target_i386::Relocate::fix_up_ldo): Remove.

2009-10-13  Ian Lance Taylor  <iant@google.com>

	Add support for -pie.
	* options.h (class General_options): Add -pie and
	--pic-executable.
	(General_options::output_is_position_independent): Test -pie.
	(General_options::output_is_executable): Return true if not shared
	and not relocatable.
	(General_options::output_is_pie): Remove.
	* options.cc (General_options::finalize): Reject incompatible uses
	of -pie.
	* gold.cc (queue_middle_tasks): A -pie link is not static.
	* symtab.h (Symbol::needs_plt_entry): Return false if -pie.
	* symtab.cc (Symbol::final_value_is_known): Return false if
	output_is_position_independent.
	* layout.cc (Layout::set_segment_offsets): Start at address 0 if
	output_is_position_independent.
	* output.cc (Output_file_header::do_sized_write): Use ET_DYN if
	output_is_position_independent.
	* i386.cc (Output_data_plt_i386::do_write): Use the PIC PLT if
	output_is_position_independent.
	* testsuite/Makefile.am (check_PROGRAMS): Add basic_pie_test and
	two_file_pie_test.
	(basic_pie_test.o, basic_pie_test): New targets.
	(two_file_test_1_pie.o, two_file_test_1b_pie.o): New targets.
	(two_file_test_2_pie.o, two_file_test_main_pie.o): New targets.
	(two_file_pie_test): New target.
	* testsuite/Makefile.in: Rebuild.
	* README: Remove note saying that -pie is not supported.

2009-10-13  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* options.h (class General_options): Add -init and -fini.
	* layout.cc (Layout::finish_dynamic_section): Emit
	given init and fini functions.

2009-10-13  Sriraman Tallam  <tmsriram@google.com>

	* gc.h (gc_process_relocs): Check if icf is enabled using new
	function.
	* gold.cc (queue_initial_tasks): Likewise.
	(queue_middle_tasks): Likewise.
	* object.cc (do_layout): Likewise.
	* symtab.cc (is_section_folded): Likewise.
	* main.cc (main): Likewise.
	* reloc.cc (Read_relocs::run): Likewise.
	(Sized_relobj::do_scan_relocs): Likewise.
	* icf.cc (is_function_ctor_or_dtor): New function.
	(Icf::find_identical_sections): Check if function is ctor or dtor when
	safe icf is chosen.
	* options.h (General_options::icf): Change option to be an enum.
	(Icf_status): New enum.
	(icf_enabled): New method.
	(icf_safe_folding): New method.
	(set_icf_status): New method.
	(icf_status_): New variable.
	* (options.cc) (General_options::finalize): Set icf_status_.
	* testsuite/Makefile.am: Add commands to build icf_safe_test. Modify
	icf_test and icf_keep_unique_test to use the --icf enum flag.
	* testsuite/icf_safe_test.sh: New file.
	* testsuite/icf_safe_test.cc: New file.	

2009-10-12  Sriraman Tallam  <tmsriram@google.com>

	* symtab.h: Check for GOLD_SYMTAB_H before header includes. Remove
	includes to gc.h and icf.h.
	* arm.cc: Include gc.h.
	* gold.cc: Likewise.
	* i386.cc: Likewise.
	* powerpc.cc: Likewise.
	* sparc.cc: Likewise.
	* x86_64.cc: Likewise.
	* gc.h: Include icf.h.

2009-10-11  Ian Lance Taylor  <iant@google.com>

	* plugin.cc: Include "gold.h" before other header files.

2009-10-10  Chris Demetriou  <cgd@google.com>

	* options.h (Input_file_argument::Input_file_type): New enum.
	(Input_file_argument::is_lib_): Replace with...
	(Input_file_argument::type_): New member.
	(Input_file_argument::Input_file_argument): Take Input_file_type
	'type' rather than boolean 'is_lib' as second argument.
	(Input_file_argument::is_lib): Use type_.
	(Input_file_argument::is_searched_file): New function.
	(Input_file_argument::may_need_search): Handle is_searched_file.
	* options.cc (General_options::parse_library): Support -l:filename.
	(General_options::parse_just_symbols): Update for Input_file_argument
	changes.
	(Command_line::process): Likewise.
	* archive.cc (Archive::get_file_and_offset): Likewise.
	* plugin.cc (Plugin_manager::release_input_file): Likewise.
	* script.cc (read_script_file, script_add_file): Likewise.
	* fileread.cc (Input_file::Input_file): Likewise.
	(Input_file::will_search_for): Handle is_searched_file.
	(Input_file::open): Likewise.
	* readsyms.cc (Read_symbols::get_name): Likewise.
	* testsuite/Makefile.am (searched_file_test): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/searched_file_test.cc: New file.
	* testsuite/searched_file_test_lib.cc: New file.

2009-10-09  Andrew Pinski  <andrew_pinski@playstation.sony.com>
	    Ian Lance Taylor  <iant@google.com>

	* descriptor.cc: Include <cstdio> and "binary-io.h".
	(Descriptors::open): Open the files in binary mode always.
	* script.cc (Lex::get_token): Treat \r as whitespace.

2009-10-09  Ian Lance Taylor  <iant@google.com>

	* testsuite/retain_symbols_file_test.sh: Don't test for __tcf_0.

2009-10-09  Andrew Pinski  <andrew_pinski@playstation.sony.com>
	    Ian Lance Taylor  <iant@google.com>

	* configure.ac: Check for readv function also.
	* fileread.cc (readv): Define if not HAVE_READV.
	* fileread.h (File_read:: max_readv_entries): Set to 1 if readv
	does not exist.
	* config.in: Regenerate.
	* configure: Regenerate.

2009-10-09  Doug Kwan  <dougkwan@google.com>

	* layout.cc (Layout::make_output_section): Call target hook to make
	ordinary output section.
	(Layout::finalize): Adjust parameter list of call the
	Target::may_relax().
	* layout.h (class Layout::section_list): New method.
	* merge.h (Output_merge_base::entsize): Change visibility to public.
	(Output_merge_base::is_string, Output_merge_base::do_is_string):
	New methods.
	(Output_merge_string::do_is_string): New method.
	* object.cc (Sized_relobj::do_setup): renamed from
	Sized_relobj::set_up.
	* object.h (Sized_relobj::adjust_shndx,
	Sized_relobj::initializ_input_to_output_maps,
	Sized_relobj::free_input_to_output_maps): Change visibilities to
	protected.
	(Sized_relobj::setup): Virtualize.
	(Sized_relobj::do_setup): New method declaration.
	(Sized_relobj::invalidate_section_offset,
	Sized_relobj::do_invalidate_section_offset): New method decfinitions.
	(Sized_relobj::elf_file, Sized_relobj::local_values): New methods.
	* options.cc (parse_int): New function.
	* options.h (parse_int): New declaration.
	(DEFINE_int): New macro.
	(stub_group_size): New option.
	* output.cc (Output_section::Output_section): Initialize memebers
	merge_section_map_, merge_section_by_properties_map_,
	relaxed_input_section_map_, is_relaxed_input_section_map_valid_.
	(Output_section::add_input_section): Handled deferred code-fill
	generation and remove an old comment.
	(Output_section::add_relaxed_input_section): New method definition.
	(Output_section::add_merge_input_section): Use merge section by
	properties map to speed to search.  Update merge section maps
	as appropriate.
	(Output_section::build_relaxation_map): New method definition.
	(Output_section::convert_input_sections_in_list_to_relaxed_sections):
	Same.
	(Output_section::relax_input_section): Renamed to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of pointers to relaxed sections.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section): New method definitions.
	(Output_section::is_input_address_mapped,
	Output_section::output_offset, Output_section::output_address):
	Use output section data maps to speed up searching.
	(Output_section::find_starting_output_address): Add comments.
	(Output_section::do_write,
	Output_section::write_to_postprocessing_buffer): Do code-fill
	generation as appropriate.
	(Output_section::get_input_sections): Invalidate relaxed input section
	map.
	(Output_section::restore_states): Adjust type of checkpoint .
	Invalidate relaxed input section map.
	* output.h (Output_merge_base): New class declaration.
	(Input_section_specifier): New class defintion.
	(class Output_relaxed_input_section) Change base class to
	Output_section_data_build.
	(Output_relaxed_input_section::Output_relaxed_input_section): Adjust
	base class initializer.
	(Output_section::add_relaxed_input_section): New method declaration.
	(Output_section::Input_section): Change visibility to protected.
     	(Output_section::Input_section::relobj,
	Output_section::Input_section::shndx): Handle relaxed input sections.
	Output_section::input_sections) Change visibility to protected.  Also
	define overload to return a non-const pointer.
	(Output_section::Merge_section_properties): New class defintion.
	(Output_section::Merge_section_by_properties_map,
	Output_section::Output_section_data_by_input_section_map,
	Output_section::Relaxation_map): New types.
	(Output_section::relax_input_section): Rename method to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of relaxed section pointers.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section,
	Output_section::build_relaxation_map,
	Output_section::convert_input_sections_in_list_to_relaxed_sections):
	New method declarations.
	(Output_section::merge_section_map_
	Output_section::merge_section_by_properties_map_,
	Output_section::relaxed_input_section_map_,
	Output_section::is_relaxed_input_section_map_valid_,
	Output_section::generate_code_fills_at_write_): New data members.
	* script-sections.cc
	(Output_section_element_input::set_section_addresses): Call
	current_data_size and addralign methods of relaxed input sections.
	(Orphan_output_section::set_section_addresses): Call current_data_size
	and addralign methods of relaxed input sections.
	* symtab.cc (Symbol_table::compute_final_value): Extract template
	from the body of Symbol_table::sized_finalize_symbol.
	(Symbol_table::sized_finalized_symbol): Call
	Symbol_table::compute_final_value.
	* symtab.h (Symbol_table::Compute_final_value_status): New enum type.
	(Symbol_table::compute_final_value): New templated method declaration.
	* target.cc (Target::do_make_output_section): New method defintion.
	* target.h (Target::make_output_section): New method declaration.
	(Target::relax): Add more parameters for input objects, symbol table
	and layout.  Adjust call to do_relax.
	(Target::do_make_output_section): New method declaration.
	(Target::do_relax): Add parameters for input objects, symbol table
	and layout.

2009-10-09  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	* pread.c: Include stdio.h.

2009-10-09  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	* plugin.cc: Don't include dlfcn.h when ENABLE_PLUGINS is not
	defined.

2009-10-09  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	* dwarf_reader.cc (Sized_dwarf_line_info::Sized_dwarf_line_info):
	Change read_shndx type to unsigned int.
	(Sized_dwarf_line_info::read_lines): Change shndx type to unsigned
	int.
	(Sized_dwarf_line_info::read_line_mappings): Likewise.
	* dwarf_reader.h (Sized_dwarf_line_info::Sized_dwarf_line_info):
	Change read_shndx type to unsigned int.
	(Sized_dwarf_line_info::read_lines): Change shndx type to unsigned
	int.
	(Sized_dwarf_line_info::read_line_mappings): Likewise.
	* layout.cc (Layout::create_symtab_sections): Cast the result of
	local_symcount * symsize to off_t in the gold_assert.

2009-10-09  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* arm.cc (Target_arm::relocate::reloc_is_non_pic): Return true for
	R_ARM_THM_ABS5, R_ARM_ABS8, R_ARM_ABS12, R_ARM_ABS16,
	R_ARM_BASE_ABS.
	(Arm_relocate_functions::abs8): Remove has_thumb_bit parameter.
	(Arm_relocate_functions::thm_abs5): New function.
	(Arm_relocate_functions::abs12): New function.
	(Arm_relocate_functions::abs16): New function.
	(Arm_relocate_functions::base_abs): New function.
	(Scan::check_non_pic): Handle R_ARM_ABS32_NOI.
	(Scan::local): Remove special handling of R_ARM_ABS8.  Handle
	R_ARM_ABS32_NOI, R_ARM_THM_ABS5, R_ARM_ABS12, R_ARM_ABS16, and
	R_ARM_BASE_ABS.
	(Scan::global): Likewise.
	(Relocate::relocate): Handle R_ARM_ABS12, R_ARM_ABS16,
	R_ARM_ABS32_NOI, R_ARM_THM_ABS5, and R_ARM_BASE_ABS.
	(Relocatable_size_for_reloc::get_size_for_reloc): Handle
	R_ARM_ABS16, R_ARM_THM_ABS5, R_ARM_ABS32_NOI, R_ARM_ABS12, and
	R_ARM_BASE_ABS.

2009-10-09  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* arm.cc (Arm_relocate_functions::movw_prel_nc): New function.
	(Arm_relocate_functions::movt_prel): New function.
	(Arm_relocate_functions::thm_movw_prel_nc): New function.
	(Arm_relocate_functions::thm_movt_prel): New function.
	(Scan::local): Handle R_ARM_MOVW_PREL_NC, R_ARM_MOVT_PREL,
	R_ARM_THM_MOVW_PREL_NC, and R_ARM_THM_MOVT_PREL.
	(Scan::global, Relocate::relocate): Likewise.
	(Relocatable_size_for_reloc::get_size_for_reloc): Likewise.

2009-10-09  Mikolaj Zalewski  <mikolajz@google.com>

	* gold.cc: (queue_initial_tasks): Pass incremental_inputs to
	Incremental_checker.
	* incremental.cc: (INCREMENTAL_LINK_VERSION): Change type to
	unsigned int.
	(class Incremental_inputs_header): New class.
	(Incremental_inputs_header_writer): Edit comment.
	(Incremental_inputs_entry): New class.
	(Incremental_inputs_entry_writer): Edit comment.
	(Sized_incremental_binary::do_find_incremental_inputs_section):
	Add *strtab_shndx parameter, fill it.
	(Sized_incremental_binary::do_check_inputs): New method.
	(Incremental_checker::can_incrementally_link_output_file): Use
	Sized_incremental_binary::check_inputs.
	(Incremental_inputs::report_command_line): Save command line in
	command_line_.
	* incremental.h:
	(Incremental_binary::find_incremental_inputs_section): New
	method.
	(Incremental_binary::do_find_incremental_inputs_section): Add
	strtab_shndx parameter.
	(Incremental_binary::do_check_inputs): New pure virtual method.
	(Sized_incremental_binary::do_check_inputs): Declare.
	(Incremental_checker::Incremental_checker): Add incremental_inputs
	parameter, use it to initialize incremental_inputs_.
	(Incremental_checker::incremental_inputs_): New field.
	(Incremental_checker::command_line): New method.
	(Incremental_checker::inputs): New method.
	(Incremental_checker::command_line_): New field.

2009-10-09  Mikolaj Zalewski  <mikolajz@google.com>

	* incremental.cc: Include <cstdarg> and "target-select.h".
	(vexplain_no_incremental): New function.
	(explain_no_incremental): New function.
	(Incremental_binary::error): New method.
	(Sized_incremental_binary::do_find_incremental_inputs_section): New
	method.
	(make_sized_incremental_binary): New function.
	(open_incremental_binary): New function.
	(can_incrementally_link_file): Add checks if output is ELF and has
	inputs section.
	* incremental.h: Include "elfcpp_file.h" and "output.h".
	(Incremental_binary): New class.
	(Sized_incremental_binary): New class.
	(open_incremental_binary): Declare.
	* object.cc (is_elf_object): Use
	elfcpp::Elf_recognizer::is_elf_file.
	(make_elf_object): Use elfcpp::Elf_recognizer::is_valid_header.
	* output.h (Output_file::filesize): New method.

2009-10-07  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* arm.cc (Arm_relocate_functions::extract_arm_movw_movt_addend):
	New function.
	(Arm_relocate_functions::insert_val_arm_movw_movt): New function.
	(Arm_relocate_functions::extract_thumb_movw_movt_addend): New
	function.
	(Arm_relocate_functions::insert_val_thumb_movw_movt): New
	function.
	(Arm_relocate_functions::movw_abs_nc): New function.
	(Arm_relocate_functions::movt_abs): New function.
	(Arm_relocate_functions::thm_movw_abs_nc): New function.
	(Arm_relocate_functions::thm_movt_abs): New function.
	(Scan::local): Handle R_ARM_MOVW_ABS_NC, R_ARM_MOVT_ABS,
	R_ARM_THM_MOVW_ABS_NC, R_ARM_THM_MOVT_ABS.
	(Scan::global): Likewise.
	(Relocate::relocate): Likewise.
	(Relocatable_size_for_reloc::get_size_for_reloc): Likewise.

2009-10-07  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* arm.cc (Arm_relocate_functions::got_prel) New function.
	(Scan::local, Scan::global): Handle R_ARM_GOT_PREL.
	(Relocate::relocate): Likewise.
	(Relocatable_size_for_reloc::get_size_for_reloc): Likewise.

2009-10-06  Ian Lance Taylor  <iant@google.com>

	* options.h (class General_options): Define
	split_stack_adjust_size parameter.
	* object.h (class Object): Add uses_split_stack_ and
	has_no_split_stack_ fields.  Add uses_split_stack and
	has_no_split_stack accessor functions.  Declare
	handle_split_stack_section.
	(class Reloc_symbol_changes): Define.
	(class Sized_relobj): Define Function_offsets.  Declare
	split_stack_adjust, split_stack_adjust_reltype, and
	find_functions.
	* object.cc (Object::handle_split_stack_section): New function.
	(Sized_relobj::do_layout): Call handle_split_stack_section.
	* dynobj.cc (Sized_dynobj::do_layout): Call
	handle_split_stack_section.
	* reloc.cc (Sized_relobj::relocate_sections): Call
	split_stack_adjust for executable sections in split_stack
	objects.  Pass reloc_map to relocate_section.
	(Sized_relobj::split_stack_adjust): New function.
	(Sized_relobj::split_stack_adjust_reltype): New function.
	(Sized_relobj::find_functions): New function.
	* target-reloc.h: Include "object.h".
	(relocate_section): Add reloc_symbol_changes parameter.  Change
	all callers.
	* target.h (class Target): Add calls_non_split method.  Declare
	do_calls_non_split virtual method.  Declare match_view and
	set_view_to_nop.
	* target.cc: Include "elfcpp.h".
	(Target::do_calls_non_split): New function.
	(Target::match_view): New function.
	(Target::set_view_to_nop): New function.
	* gold.cc (queue_middle_tasks): Give an error if mixing
	split-stack and non-split-stack objects with -r.
	* i386.cc (Target_i386::relocate_section): Add
	reloc_symbol_changes parameter.
	(Target_i386::do_calls_non_split): New function.
	* x86_64.cc (Target_x86_64::relocate_section): Add
	reloc_symbol_changes parameter.
	(Target_x86_64::do_calls_non_split): New function.
	* arm.cc (Target_arm::relocate_section): Add reloc_symbol_changes
	parameter.
	* powerpc.cc (Target_powerpc::relocate_section): Add
	reloc_symbol_changes parameter.
	* sparc.cc (Target_sparc::relocate_section): Add
	reloc_symbol_changes parameter.
	* configure.ac: Call AM_CONDITIONAL for the default target.
	* configure: Rebuild.
	* testsuite/Makefile.am (TEST_AS): New variable.
	(check_SCRIPTS): Add split_i386.sh and split_x86_64.sh.
	(check_DATA): Add split_i386 and split_x86_64 files.
	(SPLIT_DEFSYMS): Define.
	(split_i386_[1234n].o): New targets.
	(split_i386_[124]): New targets.
	(split_i386_[1234r].stdout): New targets.
	(split_x86_64_[1234n].o): New targets.
	(split_x86_64_[124]): New targets.
	(split_x86_64_[1234r].stdout): New targets.
	(MOSTLYCLEANFILES): Add new executables.
	* testsuite/split_i386.sh: New file.
	* testsuite/split_x86_64.sh: New file.
	* testsuite/split_i386_1.s: New file.
	* testsuite/split_i386_2.s: New file.
	* testsuite/split_i386_3.s: New file.
	* testsuite/split_i386_4.s: New file.
	* testsuite/split_i386_n.s: New file.
	* testsuite/split_x86_64_1.s: New file.
	* testsuite/split_x86_64_2.s: New file.
	* testsuite/split_x86_64_3.s: New file.
	* testsuite/split_x86_64_4.s: New file.
	* testsuite/split_x86_64_n.s: New file.
	* testsuite/testfile.cc (Target_test): Update relocation_section
	function.
	* testsuite/Makefile.in: Rebuild.

2009-10-06  Ian Lance Taylor  <iant@google.com>

	* i386.cc (class Target_i386::Relocate): Add ldo_addrs_ field.
	(Target_i386::Relocate::relocate_tls): Call fix_up_ldo before
	changing local_dynamic_type_ from LOCAL_DYNAMIC_NONE.  When
	handling R_386_TLS_LDO_32, if local_dynamic_type_ is NONE, push
	the address on ldo_addrs_.
	(Target_i386::Relocate::fix_up_ldo): New function.

2009-10-06   Rafael Espindola  <espindola@google.com>

	* plugin.cc (add_input_library): New.
	(Plugin::load): Add add_input_library to tv.
	(Plugin_manager::add_input_file): Add the is_lib argument.
	(add_input_file): Update call to Plugin_manager::add_input_file.
	(add_input_library): New.
	* plugin.h (Plugin_manager::add_input_file): Add the is_lib argument.

2009-09-30  Doug Kwan  <dougkwan@google.com>

	* arm.cc (Target_arm::may_need_copy_reloc): Check for THUMB function
	symbol and call Symbol::may_need_copy_reloc to determine if
	a copy reloc is needed.
	* copy-relocs.cc (Copy_relocs::need_copy_reloc): Return false if -z
	nocopyreloc is given in command line.
	(Copy_relocs::emit_copy_reloc): Assert that -z nocopyreloc is not
	given in command line.
	* i386.cc (Target_i386::may_need_copy_reloc): Remove.
	(Target_i386::Scan::global): Use Symbol::may_need_copy_reloc instead
	of the removed Target_i386::may_need_copy_reloc.
	* options.h (copyreloc): New option with default value false.
	* powerpc.cc (Target_powerpc::may_need_copy_reloc): Remove.
	(Target_powerpc::Scan::global): Use Symbol::may_need_copy_reloc
	instead of the removed Target_powerpc::may_need_copy_reloc.
	* sparc.cc (Target_powerpc::may_need_copy_reloc): Remove.
	(Target_sparc::Scan::global): Use Symbol::may_need_copy_reloc
	instead of the removed Target_sparc::may_need_copy_reloc.
	* symtab.h (Symbol::may_need_copy_reloc): New method definition.
	* x86_64.cc (Target_powerpc::may_need_copy_reloc): Remove.
	(Target_x86_64::Scan::global): Use Symbol::may_need_copy_reloc
	instead of the removed Target_x86_64::may_need_copy_reloc.

2009-09-30  Ian Lance Taylor  <iant@google.com>

	* object.h (class Object): Remove target_ field, and target,
	sized_target, and set_target methods.
	(Object::sized_target): Remove.
	(class Sized_relobj): Update declarations.  Remove sized_target.
	* object.cc (Sized_relobj::setup): Remove target parameter.
	Change all callers.
	(Input_objects::add_object): Don't do anything with the target.
	(make_elf_sized_object): Add punconfigured parameter.  Change all
	callers.  Set or test parameter target.
	* dynobj.cc (Sized_dynobj::target): Remove target parameter.
	Change all callers.
	* parameters.cc (Parameters::set_target): Change parameter type to
	be non-const.
	(Parameters::default_target): Remove.
	(set_parameters_target): Change parameter type to be non-const.
	(parameters_force_valid_target): New function.
	(parameters_clear_target): New function.
	* parameters.h (class Parameters): Update declarations.  Remove
	default_target method.  Add sized_target and clear_target
	methods.  Change target_ to be non-const.
	(set_parameters_target): Update declaration.
	(parameters_force_valid_target): Declare.
	(parameters_clear_target): Declare.
	* readsyms.cc (Read_symbols::do_read_symbols): Pass punconfigured
	as NULL if we aren't searching.
	(Add_symbols::run): Don't check for compatible target.
	* fileread.cc (Input_file::open_binary): Call
	parameters_force_valid_target.
	* gold.cc (queue_middle_tasks): Likewise.
	* plugin.cc (make_sized_plugin_object): Likewise.  Don't call
	set_target on object.
	* dynobj.h (class Sized_dynobj): Update declarations.
	* archive.cc (Archive::get_elf_object_for_member): Return NULL if
	make_elf_object returns NULL.
	(Archive::include_member): Don't check whether object target is
	compatible.
	* output.cc (Output_section::add_input_section): Get target from
	parameters.
	(Output_section::relax_input_section): Likewise.
	* reloc.cc (Sized_relobj::do_gc_process_relocs): Get target from
	parameters.
	(Sized_relobj::do_scan_relocs): Likewise.
	(Sized_relobj::relocate_sections): Likewise.
	* resolve.cc (Symbol_table::resolve): Likewise.
	* symtab.cc (Symbol_table::wrap_symbol): Likewise.  Remove object
	parameter.  Change all callers.
	(Symbol_table::add_from_object): Get target from parameters.
	(Symbol_table::add_from_relobj): Don't check object target.
	(Symbol_table::add_from_dynobj): Likewise.
	(Symbol_table::define_special_symbol): Get target from
	parameters.
	* symtab.h (class Symbol_table): Update declaration.
	* testsuite/binary_unittest.cc (gold_testsuite): Remove target
	parameter.  Change all callers.  Clear parameter target.
	(Binary_test): Test target here.
	* testsuite/object_unittest.cc (gold_testsuite): Remove
	target_test_pointer parameter.  Change all callers.
	(Object_test): Test target here.

2009-09-26  Ian Lance Taylor  <iant@google.com>

	* testsuite/initpri1.c: Don't try to use constructor priorities if
	compiling with gcc before 4.3.

2009-09-22  Mikolaj Zalewski  <mikolajz@google.com>

	* testsuite/retain_symbols_file_test.sh (check_present): Change
	output file name to retain_symbols_file_test.stdout.
	(check_absent): Likewise.

2009-09-18  Craig Silverstein  <csilvers@google.com>

	* object.cc (Sized_relobj::do_count): Test should_retain_symbol map.
	* options.cc: Include <cerrno> and <fstream>.
	(General_options::finalize): Parse -retain-symbols-file tag.
	* options.h: New flag.
	(General_options): New method should_retain_symbol, new
	variable symbols_to_retain.
	* symtab.cc (Symbol_table::sized_finalize_symbol): Test
	should_retain_symbol map.
	* testsuite/Makefile.am (retain_symbols_file_test): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/retain_symbols_file_test.sh: New file.

2009-09-18  Nick Clifton  <nickc@redhat.com>

	* po/es.po: Updated Spanish translation.

2009-09-17  Doug Kwan  <dougkwan@google.com>

	* debug.h (DEBUG_RELAXATION): New constant.
	(DEBUG_ALL): Add DEBUG_RELAXATION.
	(debug_string_to_enum): Add relaxation debug option.
	* layout.cc
	(Layout::Relaxation_debug_check::check_output_data_for_reset_values,
	Layout::Relaxation_debug_check::read_sections,
	Layout::Relaxation_debug_check::read_sections): New method definitions.
	(Layout::Layout): Initialize data members
	record_output_section_data_from_scrips_,
	script_output_section_data_list_ and relaxation_debug_check_.
	(Layout::save_segments, Layout::restore_segments,
	Layout::clean_up_after_relaxation, Layout::prepare_for_relaxation,
	Layout::relaxation_loop_body): New method definitions.
	(Layout::finalize): Support relaxation.  Move section layout code to
	Layout::relaxation_loop_body.
	(Layout::set_asection_address_from_script): Move code for orphan
	section placement out.
	(Layout::place_orphan_sections_in_script): New method definition.
	* layout.h (Output_segment_headers, Output_file_header):
	New forward class declarations.
	(Layout::~Layout): Define.
	(Layout::new_output_section_data_from_script): New method definition.
	(Layout::place_orphan_sections_in_script): New method declaration.
	(Layout::Segment_states): New type declaration.
	(Layout::save_segments, Layout::restore_segments,
	Layout::clean_up_after_relaxation, Layout::prepare_for_relaxation,
	Layout::relaxation_loop_body): New method declarations.
	(Layout::Output_section_data_list): New type declaration.
	(Layout::Relaxation_debug_check): New class definition.
	(Layout::record_output_section_data_from_script_,
	Layout::script_output_section_data_list_, Layout::segment_states_,
	Layout::relaxation_debug_check_): New data members.
	* output.cc: (Output_section_headers::do_size): New method definition.
	(Output_section_headers::Output_section_headers): Move size
	computation to Output_section_headers::do_size.
	(Output_segment_headers::do_size): New method definition.
	(Output_file_header::Output_file_header): Move size computation to 
	Output_file_header::do_size and call it.
	(Output_file_header::do_size): New method definition.
	(Output_data_group::Output_data_group): Adjust call to
	Output_section_data.
	(Output_data_dynamic::set_final_data_size): Add DT_NULL tag only once.
	(Output_symtab_xindex::do_write): Add array bound check.
 	(Output_section::Input_section::print_to_mapfile): Handle
	RELAXED_INPUT_SECTION_CODE.
	(Output_section::Output_section): Initialize data member checkpoint_.
	(Output_section::~Output_section): Delete checkpoint object pointed
	by checkpoint_.
	(Output_section::add_input_section): Always add an Input_section if
	relaxing.
	(Output_section::add_merge_input_section): Add assert.
	(Output_section::relax_input_section): New method definition.
	(Output_section::set_final_data_size): Set load address to zero for
	an unallocated section.
	(Output_section::do_address_and_file_offset_have_reset_values):
	New method definition.
	(Output_section::Input_section_sort_enty::Input_section_sort_enty):
	Handle relaxed input section.
	(Output_section::sort_attached_input_sections): Checkpoint input
	section list lazily.
	(Output_section::get_input_sections): Change type of input_sections to
	list of Simple_input_section pointers.  Checkpoint input section list
	lazily.  Also handle relaxed input sections.
	(Output_section::add_input_section_for_script): Take a reference to
	a Simple_input_section object instead of Relobj pointer and section
	index as parameter.  Handle relaxed input sections.
	(Output_section::save_states, Output_section::restore_states): New
	method definitions.
	* output.h (Output_data::Output_data): Initialize is_data_size_fixed_.
	(Output_data::is_data_size_fixed): New method definition.
	(Output_data::reset_addresss_and_file_offset): Do not reset data size
	if it is fixed.
	(Output_data::address_and_file_offset_have_reset_values): New method
	definition.
	(Output_data::do_address_and_file_offset_have_reset_values): New method
	definition.
	(Output_data::set_data_size): Check that data size is not fixed.
	(Output_data::fix_data_size): New method definition.
	(Output_data::is_data_size_fixed_): New data member.
	(Output_section_headers::set_final_data_size): New method definition.
	(Output_section_headers::do_size): New method declaration.
	(Output_segment_headers::set_final_data_size): New method definition.
	(Output_segment_headers::do_size): New method declaration.
	(Output_file_header::set_final_data_size)::New method definition.
	(Output_file_header::do_size)::New method declaration.
	(Output_section_data::Output_section_data): Add new parameter
	is_data_size_fixed and use it to fix data size.
	(Output_data_const::Output_data_const): Adjust call to base class
	constructor and fix data size.
	(Output_data_const_buffer::Output_data_const_buffer): Adjust call to
	base class constructor and fix data size.
	(Output_data_fixed_space::Output_data_fixed_space): Adjust call to
	base class constructor and fix data size.
	(Output_data_zero_fill::Output_data_zero_fill): Adjust call to base
	class constructor and fix data size.
	(Output_data_group::set_final_data_size): New method definition.
	(Output_data_dynamic::Dynamic_entry::tag): New method definition.
	(Output_symtab_xindex::Output_symtab_xindex): Adjust call to base
	class constructor and fix data size.
	(Output_relaxed_input_section): New class definition.
	(Output_section::Simple_input_section): New class definition.
	(Output_section::get_input_sections): Adjust parameter list.
	(Output_section::add_input_section_for_script): Same.
	(Output_section::save_states, Output_section::restore_states,
	Output_section::do_address_and_file_offset_have_reset_values,
	(Output_section::Input_section::Input_section): Handle
	RELAXED_INPUT_SECTION_CODE.  Add new overload for
	Output_relaxed_input_section.
	(Output_section::Input_section::is_input_section,
	Output_section::Input_section::set_output_section): Handle relaxed
	input section.
	(Output_section::Input_section::is_relaxed_input_section,
	Output_section::Input_section::output_section_data,
	Output_section::Input_section::relaxed_input_section): New method
	definitions.
	(Output_section::Input_section::RELAXED_INPUT_SECTION_CODE): New enum
	value.
	(Output_section::Input_section::u1_): Update comments.
	(Output_section::Input_section::u2_): Add new union member poris.
	(Output_section::Checkpoint_output_section): New classs definition.
	(Output_section::relax_input_section): New method declaration.
	(Output_section::checkpoint_): New data member.
	(Output_segment): Update comments.
	(Output_segment::Output_segment): Un-privatize copy constructor.
	(Output_segment::operator=): Un-privatize.
	* script-sections.cc (Output_section_element::Input_section_list):
	Change element type to Output_section::Simple_input_section.
	(Output_section_element_dot_assignment::set_section_addresses):
	Register output section data for relaxation clean up.
	(Output_data_exression::Output_data_expression): Adjust call to base
	constructor to fix data size.
	(Output_section_element_data::set_section_addresses): Register
	Output_data_expression object for relaxation clean up.
	(struct Input_section_info): Replace Relobj pointer and section index
	pair with Output_section::Simple_input_section and Convert struct to a
	class.
	(Input_section_sorter::operator()): Adjust access to
	Input_section_info data member to use accessors. 
	(Output_section_element_input::set_section_addresses): Use layout
	parameter.  Adjust code to use Output_section::Simple_input_section
	and Input_secction_info classes.  Register filler for relaxation
	clean up.
	(Orphan_output_section::set_section_addresses): Replace Relobj pointer
	and section index pair with Output_section::Simple_input_section
	class.  Adjust code accordingly.
	(Phdrs_element::release_segment): New method definition.
	(Script_sections::attach_sections_using_phdrs_clause): Do not modify
	segment list.
	(Script_sections::release_segments): New method definition.
	* gold/script-sections.h (Script_sections::release_segments): New
	method declaration.
	* gold/target.h (Target::may_relax, Target::relax,
	Target::do_may_relax, Target::do_relax): New method definitions.

2009-09-17  Viktor Kutuzov  <vkutuzov@accesssoftek.com>

	* arm.cc (has_signed_unsigned_overflow): New function.
	(Arm_relocate_functions::abs8): New function.
	(Target_arm::Scan::local): Handle R_ARM_ABS8.
	(Target_arm::Scan::global): Likewise.
	(Target_arm::relocate::relocate): Likewise.
	(Target_arm::Relocatable_size_for_reloc::get_size_for_reloc):
	Likewise.

2009-09-16  Cary Coutant  <ccoutant@google.com>

	* testsuite/Makefile.am (MOSTLYCLEANFILES): Add more generated files.
	* testsuite/Makefile.in: Regenerate.

2009-09-11  Nick Clifton  <nickc@redhat.com>

	* po/gold.pot: Updated by the Translation project.

2009-09-08  Cary Coutant  <ccoutant@google.com>

	* output.cc (Output_file::open): Add execute permission to empty file.
	* testsuite/Makefile.am (permission_test): New test.
	* testsuite/Makefile.in: Regenerate.

2009-09-02  Ian Lance Taylor  <iant@google.com>

	* output.cc (Output_file::resize): Call map_no_anonymous rather
	than map.

2009-09-01  Mikolaj Zalewski  <mikolajz@google.com>

	* gold.cc: Include "incremental.h".
	(queue_initial_tasks): Call Incremental_checker methods.
	* incremental.cc: Include "output.h".
	(Incremental_checker::can_incrementally_link_output_file): New
	method.
	* incremental.h (Incremental_checker): New class.

	* output.cc (Output_file::open_for_modification): New method.
	(Output_file::map_anonymous): Changed return type to bool.  Record
	map in base_ field.
	(Output_file::map_no_anonymous): New method, broken out of map.
	(Output_file::map): Use map_no_anonymous and map_anonymous.
	* output.h (class Output_file): Update declarations.

2009-08-24  Cary Coutant  <ccoutant@google.com>

	* options.h (Command_line::Pre_options): New class.
	(Command_line::pre_options): New member.
	* options.cc (gold::options::ready_to_register): New variable.
	(One_option::register_option): Do nothing if not registering options.
	Assert if same short option registered twice.
	(General_options::General_options): Turn off option registration when
	done constructing.
	(Command_line::Pre_options::Pre_options): New constructor.

2009-08-24  Cary Coutant  <ccoutant@google.com>

	* options.h (General_options::no_keep_memory): Remove incorrect
	short option.

2009-08-24  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* Makefile.am (am__skiplex, am__skipyacc): New.
	* Makefile.in: Regenerate.

2009-08-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* Makefile.am (AM_CPPFLAGS): Renamed from ...
	(INCLUDES): ... this.
	* testsuite/Makefile.am (AUTOMAKE_OPTIONS): Add -Wno-portability.
	(AM_CPPFLAGS): Renamed from ...
	(INCLUDE): ... this.
	* Makefile.in, testsuite/Makefile.in: Regenerate.

	* Makefile.in: Regenerate.
	* aclocal.m4: Likewise.
	* config.in: Likewise.
	* configure: Likewise.
	* testsuite/Makefile.in: Likewise.

	* Makefile.am (AUTOMAKE_OPTIONS): Add foreign.
	* testsuite/Makefile.am (AUTOMAKE_OPTIONS): Add foreign.
	* Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

2009-08-19  Cary Coutant  <ccoutant@google.com>

	* resolve.cc (Symbol_table::resolve): Don't complain about defined
	symbols in shared libraries overridden by hidden or internal symbols
	in the main program.

2009-08-19  Chris Demetriou  <cgd@google.com>

	* testsuite/debug_msg.sh: Match .* rather than ${srcdir} when
	checking source file names in error messages.

2009-08-18  Doug Kwan  <dougkwan@google.com>

	* dynobj.cc (Sized_dynobj::setup): Take a Target object instead of
	an elcpp::Ehdr as parameter.  Adjust call to set_target.
	* dynobj.h (Sized_dynobj::setup): Take a Target object instead of
	an elfcpp::Ehdr as parameter.
	* object.cc (Object::set_target): Remove the version that looks up
	a target and sets it.
	(Sized_relobj::setup): Take a Target object instead of
	an elfcpp::Ehdr as parameter.  Adjust call to set_target.
	(make_elf_sized_object): Find target and ask target to
	make an ELF object.
	* object.h: (Object::set_target): Remove the version that looks up
	a target and sets it.
	(Sized_relobj::setup): Take a Target object instead of
	an elfcpp:Ehdr as parameter.
	* target.cc: Include dynobj.h.
	(Target::do_make_elf_object_implementation): New.
 	(Target::do_make_elf_object): New.
	* target.h (Target::make_elf_object): New template declaration.
	(Target::do_make_elf_object): New method declarations.
	(Target::do_make_elf_object_implementation): New template declaration.

2009-08-14  Ian Lance Taylor  <iant@google.com>

	* gold.h (FUNCTION_NAME): Define.
	(gold_unreachable): Use FUNCTION_NAME.

2009-08-12  Sriraman Tallam  <tmsriram@google.com>

	* icf.cc (Icf::find_identical_sections): Issue a warning when a
	symbol in the --keep-unique list is not found.

2009-08-12  Sriraman Tallam  <tmsriram@google.com>

	* icf.cc (Icf::find_identical_sections): Unfold symbols that have
	been maked as --keep-unique.
	(Icf::unfold_section): New function.
	* icf.h (Icf::unfold_section): New function.
	* options.h (General_options::keep_unique): New option.
	* testsuite/Makefile.am: Add commands to build icf_keep_unique_test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_keep_unique_test.sh: New file.
	* testsuite/icf_keep_unique_test.cc: New file.

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.