PR gold/12629
[external/binutils.git] / gold / ChangeLog
index a1207cf..62ee3ca 100644 (file)
+2011-06-29  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12629
+       * object.cc (Sized_relobj_file::layout_section): Change shdr
+       parameter to be const.
+       (Sized_relobj_file::layout_eh_frame_section): New function, broken
+       out of do_layout.
+       (Sized_relobj_file::do_layout): Defer .eh_frame sections if
+       appropriate.  Call layout_eh_frame_section.
+       (Sized_relobj_file::do_layout_deferred_sections): Handle .eh_frame
+       sections.
+       * object.h (class Sized_relobj_file): Update declarations.
+
+2011-06-29  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12652
+       * script.cc (Token::integer_value): Accept trailing M/m/K/k
+       modifier.
+       (Lex::gather_token): Accept trailing M/m/K/k for integers.
+
+2011-06-29  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12675
+       * object.cc (Sized_relobj_file::check_eh_frame_flags): Check for
+       SHT_X86_64_UNWIND.
+       * layout.cc (Layout::layout_eh_frame): Likewise.
+
+2011-06-29  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12695
+       * layout.cc (Layout::symtab_section_shndx): New function.
+       * layout.h (class Layout): Declare symtab_section_shndx.
+       * output.cc (Output_section::write_header): Call it.
+
+2011-06-29  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12818
+       * symtab.cc (Symbol::should_add_dynsym_entry): Don't add undefined
+       symbols which are not used in a relocation.
+
+2011-06-28  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12898
+       * layout.cc (Layout::segment_precedes): Don't crash if a linker
+       script create indistinguishable segments.
+       (Layout::set_segment_offsets): Use stable_sort when sorting
+       segments.  Pass this to Compare_segments constructor.
+       * layout.h (class Layout): Make segment_precedes non-static.
+       (class Compare_segments): Change from struct to class.  Add
+       layout_ field.  Add constructor.
+       * script-sections.cc
+       (Script_sections::attach_sections_using_phdrs_clause): Rename
+       local orphan to is_orphan.  Don't report failure to put empty
+       section in segment.  On attachment failure, report name of
+       section, and attach to first PT_LOAD segment.
+
+2011-06-28  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12934
+       * target-select.cc (Target_selector::Target_selector): Add
+       emulation parameter.  Change all callers.
+       (select_target_by_bfd_name): Rename from select_target_by_name.
+       Change all callers.
+       (select_target_by_emulation): New function.
+       (supported_emulation_names): New function.
+       * target-select.h (class Target_selector): Add emulation_ field.
+       Update declarations.
+       (Target_selector::recognize_by_bfd_name): Rename from
+       recognize_by_name.  Change all callers.
+       (Target_selector::supported_bfd_names): Rename from
+       supported_names.  Change all callers.
+       (Target_selector::recognize_by_emulation): New function.
+       (Target_selector::supported_emulations): New function.
+       (Target_selector::emulation): New function.
+       (Target_selector::do_recognize_by_bfd_name): Rename from
+       do_recognize_by_name.  Change all callers.
+       (Target_selector::do_supported_bfd_names): Rename from
+       do_supported_names.  Change all callers.
+       (Target_selector::do_recognize_by_emulation): New function.
+       (Target_selector::do_supported_emulations): New function.
+       (select_target_by_bfd_name): Change name in declaration.
+       (select_target_by_emulation): Declare.
+       (supported_emulation_names): Declare.
+       * parameters.cc (parameters_force_valid_target): Try to find
+       target based on emulation from -m option.
+       * options.h (class General_options): Change doc string for -m.
+       * options.cc (help): Print emulations.
+       (General_options::parse_V): Likewise.
+       * freebsd.h (Target_selector_freebsd::Target_selector_freebsd):
+       Add emulation parameter.  Change all callers.
+
+2011-06-28  Ian Lance Taylor  <iant@google.com>
+
+       * target.h (class Target): Add osabi_ field.
+       (Target::osabi): New function.
+       (Target::set_osabi): New function.
+       (Target::Target): Initialize osabi_.
+       (Target::do_adjust_elf_header): Make pure virtual.
+       (Sized_target::do_adjust_elf_header): Declare.
+       * target.cc (Sized_target::do_adjust_elf_header): New function.
+       (class Sized_target): Instantiate all versions.
+       * freebsd.h (class Target_freebsd): Remove.
+       (Target_selector_freebsd::do_recognize): Call set_osabi on
+       Target.
+       (Target_selector_freebsd::do_recognize_by_name): Likewise.
+       (Target_selector_freebsd::set_osabi): Remove.
+       * i386.cc (class Target_i386): Inherit from Sized_target rather
+       than Target_freebsd.
+       * x86_64.cc (class Target_x86_64): Likewise.
+
+2011-06-28  Ian Lance Taylor  <iant@google.com>
+
+       * target.h (Target::can_check_for_function_pointers): Rewrite.
+       Make non-virtual.
+       (Target::can_icf_inline_merge_sections): Likewise.
+       (Target::section_may_have_icf_unsafe_poineters): Likewise.
+       (Target::Target_info): Add can_icf_inline_merge_sections field.
+       (Target::do_can_check_for_function_pointers): New virtual
+       function.
+       (Target::do_section_may_have_icf_unsafe_pointers): Likewise.
+       * arm.cc (Target_arm::do_can_check_for_function_pointers): Rename
+       from can_check_for_function_pointers, move in file.
+       (Target_arm::do_section_may_have_icf_unsafe_pointers): Rename from
+       section_may_have_icf_unsafe_poineters, move in file.
+       (Target_arm::arm_info): Initialize can_icf_inline_merge_sections.
+       * i386.cc (Target_i386::do_can_check_for_function_pointers):
+       Rename from can_check_for_function_pointers, move in file.
+       (Target_i386::can_icf_inline_merge_sections): Remove.
+       (Target_i386::i386_info): Initialize
+       can_icf_inline_merge_sections.
+       * powerpc.cc (Target_powerpc::powerpc_info) [all versions]:
+       Initialize can_icf_inline_merge_sections.
+       * sparc.cc (Target_sparc::sparc_info) [both version]: Likewise.
+       * x86_64.cc (Target_x86_64::do_can_check_for_function_pointers):
+       Rename from can_check_for_function_pointers, move in file.
+       (Target_x86_64::can_icf_inline_merge_sections): Remove.
+       (Target_x86_64::x86_64_info): Initialize
+       can_icf_inline_merge_sections.
+       * testsuite/testfile.cc (Target_test::test_target_info):
+       Likewise.
+       * icf.cc (get_section_contents): Correct formatting.
+
+2011-06-27  Ian Lance Taylor  <iant@google.com>
+
+       * symtab.cc (Symbol::versioned_name): New function.
+       (Symbol_table::add_to_final_symtab): Use versioned_name when
+       appropriate.
+       (Symbol_table::sized_write_symbol): Likewise.
+       * symtab.h (class Symbol): Declare versioned_name.
+       * stringpool.h (class Stringpool_template): Add variant of add
+       which takes a std::basic_string.
+       * testsuite/Makefile.am (check_PROGRAMS): Add ver_test_12.
+       (ver_test_12_SOURCES, ver_test_12_DEPENDENCIES): New variables.
+       (ver_test_12_LDFLAGS, ver_test_12_LDADD): New variables.
+       (ver_test_12.o): New target.
+       * testsuite/Makefile.in: Rebuild.
+
+2011-06-27  Doug Kwan  <dougkwan@google.com>
+
+       * arm.cc (Arm_relocate_functions::thm_jump8,
+       Arm_relocate_functions::thm_jump11): Use a wider signed
+       type to compute offset.
+       * testsuite/Makefile.am: Add new tests arm_thm_jump11 and
+       arm_thm_jump8.
+       * testsuite/Makefile.in: Regenerate.
+       * testsuite/arm_branch_in_range.sh: Check test results of
+       arm_thm_jump11 and arm_thm_jump8.
+       * testsuite/arm_thm_jump11.s: New test source file.
+       * testsuite/arm_thm_jump11.t: New linker script.
+       * testsuite/arm_thm_jump8.s: New test source file.
+       * testsuite/arm_thm_jump8.t: New linker script.
+
+2011-06-24  Ian Lance Taylor  <iant@google.com>
+
+       * layout.cc: Include "object.h".
+       (ctors_sections_in_init_array): New static variable.
+       (Layout::is_ctors_in_init_array): New function.
+       (Layout::layout): Add entry to ctors_sections_in_init_array if
+       appropriate.
+       * layout.h (class Layout): Declare is_ctors_in_init_array.
+       * reloc.cc (Sized_relobj_file::do_relocate): Call reverse_words if
+       is_ctors_reverse_view is set.
+       (Sized_relobj_file::write_sections): Add layout parameter.  Change
+       all callers.  Set is_ctors_reverse_view field of View_size.
+       (Sized_relobj_file::reverse_words): New function.
+       * object.h (Sized_relobj_file::View_size): Add
+       is_ctors_reverse_view field.
+       (class Sized_relobj_file): Update declarations.
+       * testsuite/initpri3.c: New test.
+       * testsuite/Makefile.am: (check_PROGRAMS): Add initpri3a and
+       initpri3b.
+       (initpri3a_SOURCES, initpri3a_DEPENDENCIES): New variables.
+       (initpri3a_LDFLAGS, initpri3a_LDADD): New variables.
+       (initpri3b_SOURCES, initpri3b_DEPENDENCIES): New variables.
+       (initpri3b_LDFLAGS, initpri3b_LDADD): New variables.
+       * testsuite/Makefile.in: Rebuild.
+
+2011-06-24  Cary Coutant  <ccoutant@google.com>
+
+       * testsuite/Makefile.am: Add in-tree assembler to gcctestdir.
+       (debug_msg_cdebug.o, odr_violation1_cdebug.o, odr_violation2_cdebug.o)
+       (debug_msg_cdebug.err): New targets.
+       * testsuite/Makefile.in: Regenerate.
+       * testsuite/debug_msg.sh: Check output of link with compressed debug.
+       Fix checks for link with shared library.
+
+2011-06-24  Doug Kwan  <dougkwan@google.com>
+
+       * arm.cc (Arm_output_section::append_text_sections_to_list): Do not
+       skip empty text sections.
+       * testsuite/arm_exidx_test.s: Test handling of an empty text section.
+
+2011-06-22  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12910
+       * options.h (class General_options): Add --ctors-in-init-array.
+       * layout.cc (Layout::get_output_section): Treat SHT_INIT_ARRAY and
+       friends as SHT_PROGBITS for merging sections.
+       (Layout::layout): Remove special handling of .init_array and
+       friends.  Don't sort if doing relocatable link.  Sort for .ctors
+       and .dtors if ctors_in_init_array.
+       (Layout::make_output_section): Force correct section types for
+       .init_array and friends.  Don't sort if doing relocatable link,
+       Don't sort .ctors and .dtors if ctors_in_init_array.
+       (Layout::section_name_mapping): Remove .ctors. and .dtorso.
+       (Layout::output_section_name): Add relobj parameter.  Change all
+       callers.  Handle .ctors. and .dtors. in code rather than table.
+       Handle .ctors and .dtors if ctors_in_init_array.
+       (Layout::match_file_name): New function, moved from output.cc.
+       * layout.h (class Layout): Update declarations.
+       * output.cc: Include "layout.h".
+       (Input_section_sort_entry::get_priority): New function.
+       (Input_section_sort_entry::match_file_name): Just call
+       Layout::match_file_name.
+       (Output_section::Input_section_sort_init_fini_compare::operator()):
+       Handle .ctors and .dtors.  Sort by explicit priority rather than
+       by name.
+       * configure.ac: Remove CONSTRUCTOR_PRIORITY test and conditional.
+       * testsuite/initpri2.c: New test.
+       * testsuite/Makefile.am: Don't test CONSTRUCTOR_PRIORITY.
+       (check_PROGRAMS): Add initpri2.
+       (initpri2_SOURCES, initpri2_DEPENDENCIES): New variables.
+       (initpri2_LDFLAGS, initpri2_LDADD): New variables.
+       * configure, testsuite/Makefile.in: Rebuild.
+
+2011-06-19  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12880
+       * layout.cc (Layout::attach_allocated_section_to_segment): Add a
+       .interp section to a PT_INTERP segment even if we have seen a
+       --dynamic-linker option.  Don't do it if we have seen a PHDRS
+       clause in a linker script.
+       (Layout::finalize): Don't create a .interp section if we've
+       already create a PT_INTERP segment.
+       (Layout::create_interp): Always call choose_output_section (revert
+       patch of 2011-06-17).  Don't create PT_INTERP segment.
+       * script-sections.cc
+       (Script_sections::create_note_and_tls_segments): Add a .interp
+       section to a PT_INTERP segment even if we have seen a
+       --dynamic-linker option.
+
+2011-06-18  Ian Lance Taylor  <iant@google.com>
+
+       * layout.cc (Layout::finish_dynamic_section): Don't set DT_TEXTREL
+       merely because a non-PT_LOAD segment has a dynamic reloc.
+
+2011-06-18  Ian Lance Taylor  <iant@google.com>
+
+       * layout.cc (Layout::finish_dynamic_section): Don't create
+       DT_FLAGS entry if not needed.
+
+2011-06-18  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12745
+       * layout.cc (Layout::layout_eh_frame): Correct handling of
+       writable .eh_frame section.
+
+2011-06-17  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12893
+       * resolve.cc (Symbol_table::resolve): Don't give an error if a
+       symbol is redefined with the exact same object and value.
+
+2011-06-17  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12880
+       * layout.h (class Layout): Add interp_segment_ field.
+       * layout.cc (Layout::Layout): Initialize interp_segment_ field.
+       (Layout::attach_allocated_section_to_segment): If making shared
+       library, put .interp section in PT_INTERP segment.
+       (Layout::finalize): Also call create_interp if -dynamic-linker
+       option was used.
+       (Layout::create_interp): Assert that there is no PT_INTERP
+       segment.  If not using a SECTIONS clause, use make_output_section.
+       (Layout::make_output_segment): Set interp_segment_ if PT_INTERP.
+       * script-sections.cc
+       (Script_sections::create_note_and_tls_segments): If making shared
+       library, put .interp section in PT_INTERP segment.
+
+2011-06-17  Ian Lance Taylor  <iant@google.com>
+
+       * object.cc (Sized_relobj_file::do_layout): Keep warning sections
+       when making a shared library.
+
+2011-06-17  Ian Lance Taylor  <iant@google.com>
+
+       * x86_64.cc (Target_x86_64::Scan::check_non_pic): Add gsym
+       parameter.  Change all callers.  Don't issue warning about PC32
+       against locally defined symbol.
+
+2011-06-16  Ian Lance Taylor  <iant@google.com>
+
+       * symtab.cc (Warnings::issue_warning): Don't warn if relocation
+       occurs in same object.
+
+2011-06-14  Alan Modra  <amodra@gmail.com>
+
+       * po/POTFILES.in: Regenerate.
+
+2011-06-09  Ian Lance Taylor  <iant@google.com>
+
+       * script-sections.cc
+       (Orphan_output_section::set_section_addresses): For a relocatable
+       link set address to 0.
+
+2011-06-09  Cary Coutant  <ccoutant@google.com>
+
+       PR gold/12804
+       * gold/gold.cc (queue_initial_tasks): Warn if --incremental is
+       used with --compress-debug-sections.
+       * gold/object.cc (Sized_relobj_file::do_layout): Report
+       uncompressed size of compressed input sections.
+
+2011-06-08  Cary Coutant  <ccoutant@google.com>
+
+       PR gold/12804
+       * testsuite/two_file_test_2_v1.cc: Change initialization of
+       v2 to keep it in .data.
+
+2011-06-07  Cary Coutant  <ccoutant@google.com>
+
+       * common.cc (Symbol_table::do_allocate_commons_list): Call
+       gold_fallback.
+       * errors.cc (Errors::fatal): Adjust call to gold_exit.
+       (Errors::fallback): New function.
+       (gold_fallback): New function.
+       * errors.h (Errors::fallback): New function.
+       * gold.cc (gold_exit): Change status parameter to enum; adjust
+       all callers.
+       (queue_initial_tasks): Call gold_fallback.
+       * gold.h: Include cstdlib.
+       (Exit_status): New enum type.
+       (gold_exit): Change status parameter to enum.
+       (gold_fallback): New function.
+       * layout.cc (Layout::set_section_offsets): Call gold_fallback.
+       (Layout::create_symtab_sections): Likewise.
+       (Layout::create_shdrs): Likewise.
+       * main.cc (main): Adjust call to gold_exit.
+       * output.cc (Output_data_got::add_got_entry): Call gold_fallback.
+       (Output_data_got::add_got_entry_pair): Likewise.
+       (Output_section::add_input_section): Likewise.
+       (Output_section::add_output_section_data): Likewise.
+       (Output_segment::set_section_list_addresses): Likewise.
+       * x86_64.cc (Output_data_plt_x86_64::add_entry): Likewise.
+
+2011-06-07  Cary Coutant  <ccoutant@google.com>
+
+       * layout.cc (Layout::set_segment_offsets): Don't adjust layout
+       for incremental links.
+       * output.cc (Output_segment::set_section_list_addresses): Remove
+       FIXME and test for TLS or BSS.
+
+2011-06-07  Cary Coutant  <ccoutant@google.com>
+
+       * testsuite/Makefile.am: Add incremental_copy_test,
+       incremental_common_test_1.
+       * testsuite/Makefile.in: Regenerate.
+       * testsuite/common_test_1_v1.c: New source file.
+       * testsuite/common_test_1_v2.c: New source file.
+       * testsuite/copy_test_v1.cc: New source file.
+
+2011-06-07  Cary Coutant  <ccoutant@google.com>
+
+       * common.cc (Symbol_table::do_allocate_commons_list): For incremental
+       update, allocate common from bss section's free list.
+       * incremental-dump.cc (dump_incremental_inputs): Print flag for
+       linker-defined symbols.
+       * incremental.cc (Sized_incremental_binary::do_process_got_plt):
+       Skip GOT and PLT entries that are no longer referenced.
+       (Output_section_incremental_inputs::write_info_blocks): Mark
+       linker-defined symbols.
+       (Sized_incr_relobj::do_add_symbols): Process linker-defined symbols.
+       * output.cc (Output_section::allocate): New function.
+       * output.h (Output_section::allocate): New function.
+       * resolve.cc (Symbol_table::report_resolve_problem): Add case for
+       linker-defined symbols.
+       (Symbol::override_base_with_special): Copy is_predefined_ flag.
+       * symtab.cc (Symbol::init_fields): Initialize is_predefined_ flag.
+       (Symbol::init_base_output_data): Likewise.
+       (Symbol::init_base_output_segment): Likewise.
+       (Symbol::init_base_constant): Likewise.
+       (Sized_symbol::init_output_data): Likewise.
+       (Sized_symbol::init_output_segment): Likewise.
+       (Sized_symbol::init_constant): Likewise.
+       (Symbol_table::do_define_in_output_data): Likewise.
+       (Symbol_table::do_define_in_output_segment): Likewise.
+       (Symbol_table::do_define_as_constant): Likewise.
+       * symtab.h (Symbol::is_predefined): New function.
+       (Symbol::init_base_output_data): Add is_predefined parameter.
+       (Symbol::init_base_output_segment): Likewise.
+       (Symbol::init_base_constant): Likewise.
+       (Symbol::is_predefined_): New data member.
+       (Sized_symbol::init_output_data): Add is_predefined parameter.
+       (Sized_symbol::init_output_segment): Likewise.
+       (Sized_symbol::init_constant): Likewise.
+       (enum Symbol_table::Defined): Add INCREMENTAL_BASE.
+
+2011-06-07  Cary Coutant  <ccoutant@google.com>
+
+       * copy-relocs.cc (Copy_relocs::copy_reloc): Call make_copy_reloc
+       instead of emit_copy_reloc.
+       (Copy_relocs::emit_copy_reloc): Refactor.
+       (Copy_relocs::make_copy_reloc): New function.
+       (Copy_relocs::add_copy_reloc): Remove.
+       * copy-relocs.h (Copy_relocs::emit_copy_reloc): Move to public
+       section.
+       (Copy_relocs::make_copy_reloc): New function.
+       (Copy_relocs::add_copy_reloc): Remove.
+       * gold.cc (queue_middle_tasks): Emit old COPY relocations from
+       unchanged input files.
+       * incremental-dump.cc (dump_incremental_inputs): Print "COPY" flag.
+       * incremental.cc (Sized_incremental_binary::do_reserve_layout):
+       Reserve BSS space for COPY relocations.
+       (Sized_incremental_binary::do_emit_copy_relocs): New function.
+       (Output_section_incremental_inputs::write_info_blocks): Record
+       whether a symbol is copied from a shared object.
+       (Sized_incr_dynobj::do_add_symbols): Record COPY relocations.
+       * incremental.h (enum Incremental_shlib_symbol_flags): New type.
+       (INCREMENTAL_SHLIB_SYM_FLAGS_SHIFT): New constant.
+       (Incremental_input_entry_reader::get_output_symbol_index): Add
+       is_copy parameter.
+       (Incremental_binary::emit_copy_relocs): New function.
+       (Incremental_binary::do_emit_copy_relocs): New function.
+       (Sized_incremental_binary::Sized_incremental_binary): Initialize
+       new data member.
+       (Sized_incremental_binary::add_copy_reloc): New function.
+       (Sized_incremental_binary::do_emit_copy_relocs): New function.
+       (Sized_incremental_binary::Copy_reloc): New struct.
+       (Sized_incremental_binary::Copy_relocs): New typedef.
+       (Sized_incremental_binary::copy_relocs_): New data member.
+       * symtab.cc (Symbol_table::add_from_incrobj): Change return type.
+       * symtab.h (Symbol_table::add_from_incrobj): Change return type.
+       * target.h (Sized_target::emit_copy_reloc): New function.
+       * x86_64.cc (Target_x86_64::emit_copy_reloc): New function.
+
+2011-06-02  Cary Coutant  <ccoutant@google.com>
+
+       PR gold/12163
+       * gold/archive.cc (Archive::Archive): Initialize new data member.
+       (Archive::include_all_members): Return if archive has already been
+       included.
+       * gold/archive.h (Archive::include_all_members_): New data member.
+
+2011-06-02  Nick Clifton  <nickc@redhat.com>
+
+       * dynobj.h: Fix spelling mistake in comment.
+       * output.cc: Likewise.
+
+2011-05-31  Doug Kwan  <dougkwan@google.com>
+            Asier Llano
+
+       PR gold/12826
+       * arm.cc (Target_arm::tag_cpu_arch_combine): Fix handling of
+       arch value that equals to elfcpp::MAX_TAG_CPU_ARCH.
+       * testsuite/Makefile.am: (MOSTLYCLEANFILES): Clean up.  Remove
+       redundant arm_exidx_test.so.
+       * testsuite/Makefile.in: Regenerate.
+       (check_SCRIPTS): Add pr12826.sh
+       (check_DATA): Add pr12826.stdout
+       (pr12826.stdout, pr12826.so, pr12826_1.o, pr12826_2.o): New rules.
+       * testsuite/pr12826.sh: New file.
+       * testsuite/pr12826_1.s: Ditto.
+       * testsuite/pr12826_1.s: Ditto.
+
+2011-05-30  Ian Lance Taylor  <iant@google.com>
+
+       * reloc.cc (Sized_relobj_file::do_read_relocs): Ignore empty reloc
+       sections.
+
+2011-05-29  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12804
+       * testsuite/Makefile.am: Use different file name for two_file_test
+       temporary file for each incremental test.
+       * testsuite/Makefile.in: Rebuild.
+
+2011-05-29  Ian Lance Taylor  <iant@google.com>
+
+       * binary.cc (Binary_to_elf::sized_convert): Don't crash if the
+       binary input file is empty.
+
+2011-05-27  Ian Lance Taylor  <iant@google.com>
+
+       * testsuite/Makefile.am (ver_test_2.so): Use -Wl,-R,.
+       (ver_test_9.so): Likewise.
+       * testsuite/Makefile.in: Rebuild.
+
+2011-05-26 Cary Coutant  <ccoutant@google.com>
+
+       * incremental-dump.cc (dump_incremental_inputs): Print COMDAT groups.
+       * incremental.cc (Incremental_inputs::report_input_section): Fix
+       comment, indentation.
+       (Incremental_inputs::report_comdat_group): New function.
+       (Output_section_incremental_inputs::set_final_data_size): Adjust size
+       of data for incremental input file entry.
+       (Output_section_incremental_inputs::write_info_blocks): Write COMDAT
+       group count, COMDAT group signatures.
+       (Sized_incr_relobj::do_layout): Record kept COMDAT group info from
+       an unchanged input file.
+       * incremental.h (Incremental_object_entry::Incremental_object_entry):
+       Initialize new data member.
+       (Incremental_object_entry::add_comdat_group): New function.
+       (Incremental_object_entry::get_comdat_group_count): New function.
+       (Incremental_object_entry::get_comdat_signature_key): New function.
+       (Incremental_object_entry::groups_): New data member.
+       (Incremental_inputs::report_comdat_group): New function.
+       (Incremental_input_entry_reader::get_symbol_offset): Adjust size of
+       data for incremental input file entry.
+       (Incremental_input_entry_reader::get_comdat_group_count): New function.
+       (Incremental_input_entry_reader::get_input_section): Adjust size of
+       data for incremental input file entry.
+       (Incremental_input_entry_reader::get_global_symbol_reader): Likewise.
+       (Incremental_input_entry_reader::get_comdat_group_signature): New
+       function.
+       * object.cc (Sized_relobj::include_section_group): Report kept
+       COMDAT groups for incremental links.
+
+2011-05-24  David Meyer  <pdox@google.com>
+
+       * dirsearch.cc (Dirsearch::find): Replace n1 and n2 parameters
+       with name parameter.  Add found_name parameter.
+       * fileread.cc (Input_file::find_file): Adjust code accordingly.
+       * dirsearch.h (class Dirsearch): Update declaration.
+
+2011-05-24  Ian Lance Taylor  <iant@google.com>
+
+       * archive.cc (Library_base::should_include_member): Pull in object
+       from archive if it defines the entry symbol.
+       * parameters.cc (Parameters::entry): New function.
+       * parameters.h (class Parameters): Declare entry.
+       * output.h (class Output_file_header): Remove entry_ field.
+       * output.cc (Output_file_header::Output_file_header): Remove entry
+       parameter.  Change all callers.
+       (Output_file_header::entry): Use parameters->entry.
+       * gold.cc (queue_middle_tasks): Likewise.
+       * plugin.cc (Plugin_hook::run): Likewise.
+
+2011-05-24 Cary Coutant  <ccoutant@google.com>
+
+       * gold.cc (queue_initial_tasks): Pass incremental base filename
+       to Output_file::open_base_file; don't print error message.
+       * incremental-dump.cc (main): Adjust call to
+       Output_file::open_for_modification.
+       * incremental-dump.cc (main): Likewise.
+       * incremental.cc (Incremental_inputs::report_command_line):
+       Ignore --incremental-base option when comparing command lines.
+       Ignore parameter when given as separate argument.
+       * options.h (class General_options): Add --incremental-base.
+       * output.cc (Output_file::Output_file):
+       (Output_file::open_base_file): Add base_name and writable parameters;
+       read base file into new file; print error message here.
+       (Output_file::map_no_anonymous): Add writable parameter; adjust all
+       callers.
+       * output.h (Output_file::open_for_modification): Rename to...
+       (Output_file::open_base_file): ...this; add base_name and
+       writable parameters; adjust all callers.
+       (Output_file::map_no_anonymous): Add writable parameter; adjust all
+       callers.
+       * testsuite/Makefile.am (incremental_test_4): Test
+       --incremental-base.
+       * testsuite/Makefile.in: Regenerate.
+
+2011-05-24 Cary Coutant  <ccoutant@google.com>
+
+       * testsuite/Makefile.am: Add incremental_test_2, incremental_test_3,
+       incremental_test_4.
+       * testsuite/Makefile.in: Regenerate.
+       * testsuite/two_file_test_1_v1.cc: New test source file.
+       * testsuite/two_file_test_1b_v1.cc: New test source file.
+       * testsuite/two_file_test_2_v1.cc: New test source file.
+
+2011-05-24 Cary Coutant  <ccoutant@google.com>
+
+       * dynobj.h (Dynobj::do_dynobj): New function.
+       * incremental-dump.cc (dump_incremental_inputs): Print as_needed
+       flag and soname for shared objects.
+       * incremental.cc (Incremental_inputs::report_object): Make
+       either Incremental_object_entry or Incremental_dynobj_entry; add
+       soname to string table.
+       (Incremental_inputs::report_input_section): Add assertion.
+       (Output_section_incremental_inputs::set_final_data_size): Adjust
+       type of input file entry for shared libraries; adjust size of
+       shared library info entry.
+       (Output_section_incremental_inputs::write_input_files): Write
+       as_needed flag for shared libraries.
+       (Output_section_incremental_inputs::write_info_blocks): Adjust type
+       of input file entry for shared libraries; write soname.
+       (Sized_incr_dynobj::Sized_incr_dynobj): Read as_needed flag and
+       soname from incremental info.
+       * incremental.h (enum Incremental_input_flags): Add
+       INCREMENTAL_INPUT_AS_NEEDED.
+       (Incremental_input_entry::Incremental_input_entry): Initialize new
+       data member.
+       (Incremental_input_entry::set_as_needed): New function.
+       (Incremental_input_entry::as_needed): New function.
+       (Incremental_input_entry::do_dynobj_entry): New function.
+       (Incremental_input_entry::as_needed_): New data member.
+       (Incremental_object_entry::Incremental_object_entry): Don't check
+       for shared library.
+       (Incremental_object_entry::do_type): Likewise.
+       (class Incremental_dynobj_entry): New class.
+       (Incremental_input_entry_reader::as_needed): New function.
+       (Incremental_input_entry_reader::get_soname): New function.
+       (Incremental_input_entry_reader::get_global_symbol_count): Rewrite.
+       (Incremental_input_entry_reader::get_output_symbol_index): Adjust
+       size of shared library info entry.
+       * layout.cc (Layout::finish_dynamic_section): Don't test for 
+       incremental link when adding DT_NEEDED entries.
+       * object.h (Object::Object): Initialize new data member.
+       (Object::dynobj): New function.
+       (Object::set_as_needed): New function.
+       (Object::as_needed): New function.
+       (Object::do_dynobj): New function.
+       (Object::as_needed_): New data member.
+
+2011-05-24 Cary Coutant  <ccoutant@google.com>
+
+       * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc
+       info; adjust display of GOT entries.
+       * incremental.cc (Sized_incremental_binary::setup_readers): Allocate
+       vector of input objects; remove file_status_.
+       (Sized_incremental_binary::do_reserve_layout): Remove file_status_.
+       (Sized_incremental_binary::do_process_got_plt): Adjust calls to
+       got_plt reader; call target hooks to reserve GOT entries.
+       (Output_section_incremental_inputs::set_final_data_size): Adjust size
+       of input file info header and GOT info entry.
+       (Output_section_incremental_inputs::write_info_blocks): Write dynamic
+       relocation info.
+       (Got_plt_view_info::got_descriptor): Remove.
+       (Got_plt_view_info::sym_index): New data member.
+       (Got_plt_view_info::input_index): New data member.
+       (Local_got_offset_visitor::visit): Write input file index.
+       (Global_got_offset_visitor::visit): Write 0 for input file index.
+       (Global_symbol_visitor_got_plt::operator()): Replace got_descriptor
+       with sym_index and input_index.
+       (Output_section_incremental_inputs::write_got_plt): Adjust size of
+       incremental info GOT entry; replace got_descriptor with input_index.
+       (Sized_relobj_incr::Sized_relobj_incr): Adjust initializers; record
+       map from input file index to object.
+       (Sized_relobj_incr::do_layout): Replace direct data member reference
+       with accessor function.
+       (Sized_relobj_incr::do_for_all_local_got_entries): Move to base class.
+       * incremental.h (Incremental_input_entry_reader::get_symbol_offset):
+       Adjust size of input file info header.
+       (Incremental_input_entry_reader::get_first_dyn_reloc): New function.
+       (Incremental_input_entry_reader::get_dyn_reloc_count): New function.
+       (Incremental_input_entry_reader::get_input_section): Adjust size of
+       input file info header.
+       (Incremental_got_plt_reader::Incremental_got_plt_reader): Adjust size
+       of incremental info GOT entry.
+       (Incremental_got_plt_reader::get_got_desc): Remove.
+       (Incremental_got_plt_reader::get_got_symndx): New function.
+       (Incremental_got_plt_reader::get_got_input_index): New function.
+       (Sized_incremental_binary::Sized_incremental_binary): Remove
+       file_status_; add input_objects_.
+       (Sized_incremental_binary::~Sized_incremental_binary): Remove.
+       (Sized_incremental_binary::set_file_is_unchanged): Remove.
+       (Sized_incremental_binary::file_is_unchanged): Remove.
+       (Sized_incremental_binary::set_input_object): New function.
+       (Sized_incremental_binary::input_object): New function.
+       (Sized_incremental_binary::file_status_): Remove.
+       (Sized_incremental_binary::input_objects_): New data member.
+       (Sized_relobj_incr): Rename Sized_incr_relobj to this; adjust all
+       references.
+       (Sized_relobj_incr::invalid_address): Move to base class.
+       (Sized_relobj_incr::is_output_section_offset_invalid): Move to base
+       class.
+       (Sized_relobj_incr::do_output_section_offset): Likewise.
+       (Sized_relobj_incr::do_for_all_local_got_entries): Likewise.
+       (Sized_relobj_incr::section_offsets_): Likewise.
+       * object.cc (Sized_relobj::do_for_all_local_got_entries): New
+       function.
+       (Sized_relobj_file::Sized_relobj_file): Remove local_got_offsets_.
+       (Sized_relobj_file::layout_section): Replace refs to section_offsets_
+       with accessor function.
+       (Sized_relobj_file::do_layout): Likewise.
+       (Sized_relobj_file::do_layout_deferred_sections): Likewise.
+       (Sized_relobj_file::do_for_all_local_got_entries): Move to base class.
+       (Sized_relobj_file::compute_final_local_value): Replace refs to
+       section_offsets_ with accessor function.
+       (Sized_relobj_file::do_finalize_local_symbols): Likewise.
+       * object.h (Relobj::Relobj): Initialize new data members.
+       (Relobj::add_dyn_reloc): New function.
+       (Relobj::first_dyn_reloc): New function.
+       (Relobj::dyn_reloc_count): New function.
+       (Relobj::first_dyn_reloc_): New data member.
+       (Relobj::dyn_reloc_count_): New data member.
+       (Sized_relobj): Rename Sized_relobj_base to this; adjust all
+       references.
+       (Sized_relobj::Address): New typedef.
+       (Sized_relobj::invalid_address): Move here from child class.
+       (Sized_relobj::Sized_relobj): Initialize new data members.
+       (Sized_relobj::sized_relobj): New function.
+       (Sized_relobj::is_output_section_offset_invalid): Move here from
+       child class.
+       (Sized_relobj::get_output_section_offset): Likewise.
+       (Sized_relobj::local_has_got_offset): Likewise.
+       (Sized_relobj::local_got_offset): Likewise.
+       (Sized_relobj::set_local_got_offset): Likewise.
+       (Sized_relobj::do_for_all_local_got_entries): Likewise.
+       (Sized_relobj::clear_got_offsets): New function.
+       (Sized_relobj::section_offsets): Move here from child class.
+       (Sized_relobj::do_output_section_offset): Likewise.
+       (Sized_relobj::do_set_section_offset): Likewise.
+       (Sized_relobj::Local_got_offsets): Likewise.
+       (Sized_relobj::local_got_offsets_): Likewise.
+       (Sized_relobj::section_offsets_): Likewise.
+       (Sized_relobj_file): Rename Sized_relobj to this; adjust all
+       references.
+       (Sized_relobj_file::is_output_section_offset_invalid): Move to base
+       class.
+       (Sized_relobj_file::sized_relobj): New function
+       (Sized_relobj_file::local_has_got_offset): Move to base class.
+       (Sized_relobj_file::local_got_offset): Likewise.
+       (Sized_relobj_file::set_local_got_offset): Likewise.
+       (Sized_relobj_file::get_output_section_offset): Likewise.
+       (Sized_relobj_file::do_for_all_local_got_entries): Likewise.
+       (Sized_relobj_file::do_output_section_offset): Likewise.
+       (Sized_relobj_file::do_set_section_offset): Likewise.
+       (Sized_relobj_file::Local_got_offsets): Likewise.
+       (Sized_relobj_file::local_got_offsets_): Likewise.
+       (Sized_relobj_file::section_offsets_): Likewise.
+       * output.cc (Output_reloc::Output_reloc): Adjust type of relobj
+       (all constructors).
+       (set_needs_dynsym_index): Convert relobj to derived class pointer.
+       (Output_reloc::get_symbol_index): Likewise.
+       (Output_reloc::local_section_offset): Likewise.
+       (Output_reloc::get_address): Likewise.
+       (Output_reloc::symbol_value): Likewise.
+       (Output_data_got::reserve_slot): Move to class definition.
+       (Output_data_got::reserve_local): New function.
+       (Output_data_got::reserve_slot_for_global): Remove.
+       (Output_data_got::reserve_global): New function.
+       * output.h (Output_reloc::Output_reloc): Adjust type of relobj
+       (all constructors, two instantiations).
+       (Output_reloc::get_relobj): New function (two instantiations).
+       (Output_reloc::u1_.relobj, Output_reloc::u2_.relobj): Adjust type.
+       (Output_data_reloc_base::add): Convert relobj to derived class pointer.
+       (Output_data_reloc::add_global): Adjust type of relobj.
+       (Output_data_reloc::add_global_relative): Likewise.
+       (Output_data_reloc::add_symbolless_global_addend): Likewise.
+       (Output_data_reloc::add_local): Likewise.
+       (Output_data_reloc::add_local_relative): Likewise.
+       (Output_data_reloc::add_symbolless_local_addend): Likewise.
+       (Output_data_reloc::add_local_section): Likewise.
+       (Output_data_reloc::add_output_section): Likewise.
+       (Output_data_reloc::add_absolute): Likewise.
+       (Output_data_reloc::add_target_specific): Likewise.
+       (Output_data_got::reserve_slot): Move definition here.
+       (Output_data_got::reserve_local): New function.
+       (Output_data_got::reserve_global): New function.
+       * reloc.cc (Sized_relobj_file::do_read_relocs): Replace refs to
+       section_offsets_ with accessor function.
+       (Sized_relobj_file::write_sections): Likewise.
+       (Sized_relobj_file::do_relocate_sections): Likewise.
+       * target.h (Sized_target::reserve_local_got_entry): New function.
+       (Sized_target::reserve_global_got_entry): New function.
+       * x86_64.cc (Target_x86_64::reserve_local_got_entry): New function.
+       (Target_x86_64::reserve_global_got_entry): New function.
+       (Target_x86_64::init_got_plt_for_update): Create rela_dyn section.
+
+2011-05-23 Cary Coutant  <ccoutant@google.com>
+
+       * gold.cc (queue_middle_tasks): Process existing GOT/PLT entries.
+       * incremental-dump.cc (dump_incremental_inputs): Mask high-order
+       bit when checking got_type.
+       * incremental.cc (Sized_incremental_binary::setup_readers):
+       Store symbol table and string table locations; initialize bit vector
+       of file status flags.
+       (Sized_incremental_binary::do_reserve_layout): Set bit flag for
+       unchanged files.
+       (Sized_incremental_binary::do_process_got_plt): New function.
+       (Sized_incremental_binary::get_symtab_view): Use stored locations.
+       (Output_section_incremental_inputs::set_final_data_size): Record
+       file index for each input file.
+       (Output_section_incremental_inputs::write_got_plt): Store file index
+       instead of input entry offset for each GOT entry.
+       * incremental.h
+       (Incremental_input_entry::Incremental_input_entry): Initialize new
+       data member.
+       (Incremental_input_entry::set_offset): Store file index.
+       (Incremental_input_entry::get_file_index): New function.
+       (Incremental_input_entry::file_index_): New data member.
+       (Incremental_binary::process_got_plt): New function.
+       (Incremental_binary::do_process_got_plt): New function.
+       (Sized_incremental_binary::Sized_incremental_binary): Initialize new
+       data members.
+       (Sized_incremental_binary::~Sized_incremental_binary): New destructor.
+       (Sized_incremental_binary::set_file_is_unchanged): New function.
+       (Sized_incremental_binary::file_is_unchanged): New function.
+       (Sized_incremental_binary::do_process_got_plt): New function.
+       (Sized_incremental_binary::file_status_): New data member.
+       (Sized_incremental_binary::main_symtab_loc_): New data member.
+       (Sized_incremental_binary::main_strtab_loc_): New data member.
+       * output.cc (Output_data_got::Got_entry::write): Add case
+       RESERVED_CODE.
+       (Output_data_got::add_global): Call add_got_entry.
+       (Output_data_got::add_global_plt): Likewise.
+       (Output_data_got::add_global_with_rel): Likewise.
+       (Output_data_got::add_global_with_rela): Likewise.
+       (Output_data_got::add_global_pair_with_rel): Call add_got_entry_pair.
+       (Output_data_got::add_global_pair_with_rela): Likewise.
+       (Output_data_got::add_local): Call add_got_entry.
+       (Output_data_got::add_local_plt): Likewise.
+       (Output_data_got::add_local_with_rel): Likewise.
+       (Output_data_got::add_local_with_rela): Likewise.
+       (Output_data_got::add_local_pair_with_rel): Call add_got_entry_pair.
+       (Output_data_got::add_local_pair_with_rela): Likewise.
+       (Output_data_got::reserve_slot): New function.
+       (Output_data_got::reserve_slot_for_global): New function.
+       (Output_data_got::add_got_entry): New function.
+       (Output_data_got::add_got_entry_pair): New function.
+       (Output_section::add_output_section_data): Edit FIXME.
+       * output.h
+       (Output_section_data_build::Output_section_data_build): New
+       constructor with size parameter.
+       (Output_data_space::Output_data_space): Likewise.
+       (Output_data_got::Output_data_got): Initialize new data member; new
+       constructor with size parameter.
+       (Output_data_got::add_constant): Call add_got_entry.
+       (Output_data_got::reserve_slot): New function.
+       (Output_data_got::reserve_slot_for_global): New function.
+       (class Output_data_got::Got_entry): Add RESERVED_CODE.
+       (Output_data_got::add_got_entry): New function.
+       (Output_data_got::add_got_entry_pair): New function.
+       (Output_data_got::free_list_): New data member.
+       * target.h (Sized_target::init_got_plt_for_update): New function.
+       (Sized_target::register_global_plt_entry): New function.
+       * x86_64.cc (Output_data_plt_x86_64::Output_data_plt_x86_64):
+       Initialize new data member; call init; add constructor with PLT count.
+       (Output_data_plt_x86_64::init): New function.
+       (Output_data_plt_x86_64::add_relocation): New function.
+       (Output_data_plt_x86_64::reserve_slot): New function.
+       (Output_data_plt_x86_64::free_list_): New data member.
+       (Target_x86_64::init_got_plt_for_update): New function.
+       (Target_x86_64::register_global_plt_entry): New function.
+       (Output_data_plt_x86_64::add_entry): Allocate from free list for
+       incremental updates.
+       (Output_data_plt_x86_64::add_relocation): New function.
+       * testsuite/object_unittest.cc (Object_test): Set default options.
+
+2011-05-16  Ian Lance Taylor  <iant@google.com>
+
+       * options.h (class General_options): Make -i a synonym for -r.
+
+2011-05-16  Ian Lance Taylor  <iant@google.com>
+
+       * testsuite/tls_test_main.cc: Use semaphores instead of mutexes.
+
+2011-05-10 Cary Coutant  <ccoutant@google.com>
+
+       * object.cc (Sized_relobj::do_count_local_symbols): Check for
+       strip_all (-s).
+
+2011-05-06  Ian Lance Taylor  <iant@google.com>
+
+       * layout.cc (Layout::layout): If the output section flags change,
+       update the ordering.
+
+2011-04-25 Cary Coutant  <ccoutant@google.com>
+
+       * incremental-dump.cc (dump_incremental_inputs): Print local
+       symbol info for each input file.
+       * incremental.cc
+       (Output_section_incremental_inputs::set_final_data_size): Add local
+       symbol info to input file entries in incremental info.
+       (Output_section_incremental_inputs::write_info_blocks): Likewise.
+       (Sized_incr_relobj::Sized_incr_relobj): Initialize new data members.
+       (Sized_incr_relobj::do_add_symbols): Cosmetic change.
+       (Sized_incr_relobj::do_count_local_symbols): Replace stub with
+       implementation.
+       (Sized_incr_relobj::do_finalize_local_symbols): Likewise.
+       (Sized_incr_relobj::do_relocate): Write the local symbols.
+       (Sized_incr_dynobj::do_add_symbols): Cosmetic change.
+       * incremental.h (Incremental_inputs_reader::get_symbol_offset):
+       Adjust size of input file header.
+       (Incremental_inputs_reader::get_local_symbol_offset): New function.
+       (Incremental_inputs_reader::get_local_symbol_count): New function.
+       (Incremental_inputs_reader::get_input_section): Adjust size of input
+       file header.
+       (Incremental_inputs_reader::get_global_symbol_reader): Likewise.
+       (Sized_incr_relobj::This): New typedef.
+       (Sized_incr_relobj::sym_size): New const data member.
+       (Sized_incr_relobj::Local_symbol): New struct.
+       (Sized_incr_relobj::do_output_local_symbol_count): New function.
+       (Sized_incr_relobj::do_local_symbol_offset): New function.
+       (Sized_incr_relobj::local_symbol_count_): New data member.
+       (Sized_incr_relobj::output_local_dynsym_count_): New data member.
+       (Sized_incr_relobj::local_symbol_index_): New data member.
+       (Sized_incr_relobj::local_symbol_offset_): New data member.
+       (Sized_incr_relobj::local_dynsym_offset_): New data member.
+       (Sized_incr_relobj::local_symbols_): New data member.
+       * object.h (Relobj::output_local_symbol_count): New function.
+       (Relobj::local_symbol_offset): New function.
+       (Relobj::do_output_local_symbol_count): New function.
+       (Relobj::do_local_symbol_offset): New function.
+       (Sized_relobj::do_output_local_symbol_count): New function.
+       (Sized_relobj::do_local_symbol_offset): New function.
+
+2011-04-22  Vladimir Simonov  <sv@sw.ru>
+
+       * descriptors.cc (set_close_on_exec): New function.
+       (Descriptors::open): Use set_close_on_exec.
+       * output.cc (S_ISLNK): Define if not defined.
+
+2011-04-22 Cary Coutant  <ccoutant@google.com>
+
+       * incremental.cc (Sized_incremental_binary::setup_readers): Allocate
+       global symbol map.
+       (Sized_incremental_binary::do_apply_incremental_relocs): New function.
+       (Sized_incr_relobj::do_add_symbols): Add symbols to global symbol map.
+       (Sized_incr_relobj::do_relocate): Remap section indices in incremental
+       relocations.
+       (Sized_incr_dynobj::do_add_symbols): Add symbols to global symbol map.
+       (Sized_incr_dynobj::do_for_all_global_symbols): Remove FIXME.
+       (Sized_incr_dynobj::do_for_all_local_got_entries): Likewise.
+       * incremental.h
+       (Incremental_inputs_reader::global_symbol_reader_at_offset): New
+       function.
+       (Incremental_binary::apply_incremental_relocs): New function.
+       (Incremental_binary::do_apply_incremental_relocs): New function.
+       (Sized_incremental_binary::Sized_incremental_binary): Initialize new
+       data member.
+       (Sized_incremental_binary::add_global_symbol): New function.
+       (Sized_incremental_binary::global_symbol): New function.
+       (Sized_incremental_binary::do_apply_incremental_relocs): New function.
+       (Sized_incremental_binary::symbol_map_): New data member.
+       * layout.cc (Layout_task_runner::run): Apply incremental relocations.
+       * target.h (Sized_target::apply_relocation): New function.
+       * target-reloc.h (apply_relocation): New function.
+       * x86_64.cc (Target_x86_64::apply_relocation): New function.
+
+2011-04-22  Doug Kwan  <dougkwan@google.com>
+
+       * arm.cc (Arm_output_section::Arm_output_section): Set SHF_LINK_ORDER
+       flag of a SHT_ARM_EXIDX section.
+        * testsuite/Makefile.am (arm_exidx_test): New test rules.
+       * testsuite/Makefile.in: Regenerate.
+       * testsuite/arm_exidx_test.s: New file.
+       * testsuite/arm_exidx_test.sh: Same.
+
+2011-04-20 Cary Coutant  <ccoutant@google.com>
+
+       PR gold/12689
+       * archive.h (Incremental_archive_entry::Archive_member):
+       Initialize arg_serial_ (second constructor).
+
+2011-04-17  Ian Lance Taylor  <iant@google.com>
+
+       * object.cc (Relocate_info::location): Simplify location string.
+       * errors.cc (Errors::error_at_location): Don't print program
+       name.
+       (Errors::warning_at_location): Likewise.
+       (Errors::undefined_symbol): Likewise.
+       * testsuite/debug_msg.sh: Update accordingly.
+
+2011-04-14 Cary Coutant  <ccoutant@google.com>
+
+       * gold/layout.cc (Layout::symtab_section_offset): New function.
+       * gold/layout.h (Layout::symtab_section_offset): New function.
+       * gold/reloc.cc (Sized_relobj::do_relocate): Call it.
+
+2011-04-12  Ian Lance Taylor  <iant@google.com>
+
+       * configure.ac: Check for sys/mman.h and mmap.  Check for mremap
+       with MREMAP_MAYMOVE.
+       * output.h (class Output_file): Add map_is_allocated_ field.
+       * output.cc: Only #include <sys/mman.h> if it exists.  If mmap is
+       not available, provide stubs.  If mremap is not available, #define
+       it to gold_mremap.
+       (MREMAP_MAYMOVE): Define if not defined.
+       (Output_file::Output_file): Initialize map_is_allocated_.
+       (Output_file::resize): Check map_is_allocated_.
+       (Output_file::map_anonymous): If mmap fails, use malloc.
+       (Output_file::unmap): Don't do anything for an anonymous map.
+       * fileread.cc: Only #include <sys/mman.h> if it exists.  If mmap
+       is not available, provide stubs.
+       (File_read::View::~View): Use free rather than delete[].
+       (File_read::make_view): Use malloc rather than new[].  If mmap
+       fails, use malloc.
+       (File_read::find_or_make_view): Use malloc rather than new[].
+       * gold.h: Remove HAVE_REMAP code.
+       * mremap.c: #include <errno.h>.  Only #include <sys/mman.h> if it
+       exists.  Rename mremap to gold_mremap.  If mmap is not available
+       don't do anything.
+       * configure, config.in: Rebuild.
+
+2011-04-11  Ian Lance Taylor  <iant@google.com>
+
+       * incremental.cc (Sized_incr_relobj::do_add_symbols): Always
+       initialize local variable v.
+
+2011-04-11  Cary Coutant  <ccoutant@google.com>
+
+       * archive.cc (Archive::include_member): Adjust call to
+       report_object.
+       (Add_archive_symbols::run): Track argument serial numbers.
+       (Lib_group::include_member): Likewise.
+       (Add_lib_group_symbols::run): Adjust call to report_archive_begin.
+       * archive.h (Incremental_archive_entry::Archive_member):
+       Initialize arg_serial_.
+       (Archive_member::arg_serial_): New data member.
+       * dynobj.cc (Dynobj::Dynobj): Allow input_file_ to be NULL.
+       (Sized_dynobj::do_add_symbols): Track symbols when doing an
+       incremental link.
+       (Sized_dynobj::do_for_all_local_got_entries): New function.
+       * dynobj.h: (Sized_dynobj::do_for_all_local_got_entries): New
+       function.
+       * fileread.cc (get_mtime): New function.
+       * fileread.h (get_mtime): New function.
+       * gold.cc (queue_initial_tasks): Check for incremental update.
+       (process_incremental_input): New function.
+       (queue_middle_tasks): Don't force valid target for incremental
+       update.
+       * incremental-dump.cc (find_input_containing_global): Adjust
+       size of symbol info entry.
+       (dump_incremental_inputs): Dump argument serial number and
+       in_system_directory flag; bias shndx by 1; print symbol names
+       when dumping per-file symbol lists; use new symbol info readers.
+       * incremental.cc
+       (Output_section_incremental_inputs:update_data_size): New function.
+       (Sized_incremental_binary::setup_readers): Setup input readers
+       for each input file; build maps for files added from libraries
+       and scripts.
+       (Sized_incremental_binary::check_input_args): New function.
+       (Sized_incremental_binary::do_check_inputs): Build map of argument
+       serial numbers to input arguments.
+       (Sized_incremental_binary::do_file_has_changed): Rename
+       do_file_is_unchanged to this; compare file modification times.
+       (Sized_incremental_binary::do_init_layout): New function.
+       (Sized_incremental_binary::do_reserve_layout): New function.
+       (Sized_incremental_binary::do_get_input_reader): Remove.
+       (Sized_incremental_binary::get_symtab_view): New function.
+       (Incremental_checker::can_incrementally_link_output_file): Remove.
+       (Incremental_inputs::report_command_line): Exclude --debug options.
+       (Incremental_inputs::report_archive_begin): Add parameter; track
+       argument serial numbers; don't put input file entry for archive
+       before archive members.
+       (Incremental_inputs::report_archive_end): Put input file entry
+       for archive after archive members.
+       (Incremental_inputs::report_object): Add parameter; track argument
+       serial numbers and in_system_directory flag.
+       (Incremental_inputs::report_script): Add parameter; track argument
+       serial numbers.
+       (Output_section_incremental_inputs::set_final_data_size): Adjust
+       size of symbol info entry; check for forwarding symbols.
+       (Output_section_incremental_inputs::write_input_files): Write
+       in_system_directory flag and argument serial number.
+       (Output_section_incremental_inputs::write_info_blocks): Map section
+       indices between incremental info and original input file; store
+       input section index for each symbol.
+       (class Local_got_offset_visitor): Derive from Got_offset_list::Visitor;
+       change operator() to visit().
+       (class Global_got_offset_visitor): Likewise.
+       (class Global_symbol_visitor_got_plt):
+       (Output_section_incremental_inputs::write_got_plt): Use new visitor
+       classes.
+       (Sized_incr_relobj::Sized_incr_relobj): New constructor.
+       (Sized_incr_relobj::do_read_symbols): New function.
+       (Sized_incr_relobj::do_layout): New function.
+       (Sized_incr_relobj::do_layout_deferred_sections): New function.
+       (Sized_incr_relobj::do_add_symbols): New function.
+       (Sized_incr_relobj::do_should_include_member): New function.
+       (Sized_incr_relobj::do_for_all_global_symbols): New function.
+       (Sized_incr_relobj::do_for_all_local_got_entries): New function.
+       (Sized_incr_relobj::do_section_size): New function.
+       (Sized_incr_relobj::do_section_name): New function.
+       (Sized_incr_relobj::do_section_contents): New function.
+       (Sized_incr_relobj::do_section_flags): New function.
+       (Sized_incr_relobj::do_section_entsize): New function.
+       (Sized_incr_relobj::do_section_address): New function.
+       (Sized_incr_relobj::do_section_type): New function.
+       (Sized_incr_relobj::do_section_link): New function.
+       (Sized_incr_relobj::do_section_info): New function.
+       (Sized_incr_relobj::do_section_addralign): New function.
+       (Sized_incr_relobj::do_initialize_xindex): New function.
+       (Sized_incr_relobj::do_get_global_symbol_counts): New function.
+       (Sized_incr_relobj::do_read_relocs): New function.
+       (Sized_incr_relobj::do_gc_process_relocs): New function.
+       (Sized_incr_relobj::do_scan_relocs): New function.
+       (Sized_incr_relobj::do_count_local_symbols): New function.
+       (Sized_incr_relobj::do_finalize_local_symbols): New function.
+       (Sized_incr_relobj::do_set_local_dynsym_indexes): New function.
+       (Sized_incr_relobj::do_set_local_dynsym_offset): New function.
+       (Sized_incr_relobj::do_relocate): New function.
+       (Sized_incr_relobj::do_set_section_offset): New function.
+       (Sized_incr_dynobj::Sized_incr_dynobj): New function.
+       (Sized_incr_dynobj::do_read_symbols): New function.
+       (Sized_incr_dynobj::do_layout): New function.
+       (Sized_incr_dynobj::do_add_symbols): New function.
+       (Sized_incr_dynobj::do_should_include_member): New function.
+       (Sized_incr_dynobj::do_for_all_global_symbols): New function.
+       (Sized_incr_dynobj::do_for_all_local_got_entries): New function.
+       (Sized_incr_dynobj::do_section_size): New function.
+       (Sized_incr_dynobj::do_section_name): New function.
+       (Sized_incr_dynobj::do_section_contents): New function.
+       (Sized_incr_dynobj::do_section_flags): New function.
+       (Sized_incr_dynobj::do_section_entsize): New function.
+       (Sized_incr_dynobj::do_section_address): New function.
+       (Sized_incr_dynobj::do_section_type): New function.
+       (Sized_incr_dynobj::do_section_link): New function.
+       (Sized_incr_dynobj::do_section_info): New function.
+       (Sized_incr_dynobj::do_section_addralign): New function.
+       (Sized_incr_dynobj::do_initialize_xindex): New function.
+       (Sized_incr_dynobj::do_get_global_symbol_counts): New function.
+       (make_sized_incremental_object): New function.
+       (Incremental_library::copy_unused_symbols): New function.
+       (Incremental_library::do_for_all_unused_symbols): New function.
+       * incremental.h (enum Incremental_input_flags): New type.
+       (class Incremental_checker): Remove.
+       (Incremental_input_entry::Incremental_input_entry): Add argument
+       serial number.
+       (Incremental_input_entry::arg_serial): New function.
+       (Incremental_input_entry::set_is_in_system_directory): New function.
+       (Incremental_input_entry::is_in_system_directory): New function.
+       (Incremental_input_entry::arg_serial_): New data member.
+       (Incremental_input_entry::is_in_system_directory_): New data member.
+       (class Script_info): Move here from script.h.
+       (Script_info::Script_info): Add filename parameter.
+       (Script_info::filename): New function.
+       (Script_info::filename_): New data member.
+       (Incremental_script_entry::Incremental_script_entry): Add argument
+       serial number.
+       (Incremental_object_entry::Incremental_object_entry): Likewise.
+       (Incremental_object_entry::add_input_section): Build list of input
+       sections with map to original shndx.
+       (Incremental_object_entry::get_input_section_index): New function.
+       (Incremental_object_entry::shndx_): New data member.
+       (Incremental_object_entry::name_key_): Rename; adjust all refs.
+       (Incremental_object_entry::sh_size_): Rename; adjust all refs.
+       (Incremental_archive_entry::Incremental_archive_entry): Add argument
+       serial number.
+       (Incremental_inputs::report_archive_begin): Likewise.
+       (Incremental_inputs::report_object): Likewise.
+       (Incremental_inputs::report_script): Likewise.
+       (class Incremental_global_symbol_reader): New class.
+       (Incremental_input_entry_reader::Incremental_input_entry_reader): Read
+       and store flags and input file type.
+       (Incremental_input_entry_reader::arg_serial): New function.
+       (Incremental_input_entry_reader::type): Extract type from flags.
+       (Incremental_input_entry_reader::is_in_system_directory): New function.
+       (Incremental_input_entry_reader::get_input_section_count): Call
+       accessor function for type.
+       (Incremental_input_entry_reader::get_symbol_offset): Call accessor
+       function for type; adjust size of global symbol entry.
+       (Incremental_input_entry_reader::get_global_symbol_count): Call
+       accessor function for type.
+       (Incremental_input_entry_reader::get_object_count): Likewise.
+       (Incremental_input_entry_reader::get_object_offset): Likewise.
+       (Incremental_input_entry_reader::get_member_count): Likewise.
+       (Incremental_input_entry_reader::get_unused_symbol_count): Likewise.
+       (Incremental_input_entry_reader::get_member_offset): Likewise.
+       (Incremental_input_entry_reader::get_unused_symbol): Likewise.
+       (Incremental_input_entry_reader::Global_symbol_info): Remove.
+       (Incremental_input_entry_reader::get_global_symbol_info): Remove.
+       (Incremental_input_entry_reader::get_global_symbol_reader): New
+       function.
+       (Incremental_input_entry_reader::get_output_symbol_index): New
+       function.
+       (Incremental_input_entry_reader::type_): Remove.
+       (Incremental_input_entry_reader::flags_): New data member.
+       (Incremental_inputs_reader::input_file_offset): New function.
+       (Incremental_inputs_reader::input_file_index): New function.
+       (Incremental_inputs_reader::input_file): Call input_file_offset.
+       (Incremental_inputs_reader::input_file_at_offset): New function.
+       (Incremental_relocs_reader::get_r_type): Reformat.
+       (Incremental_relocs_reader::get_r_shndx): Reformat.
+       (Incremental_relocs_reader::get_r_offset): Reformat.
+       (Incremental_relocs_reader::data): New function.
+       (Incremental_binary::Incremental_binary): Initialize new data members.
+       (Incremental_binary::check_inputs): Add cmdline parameter.
+       (Incremental_binary::file_is_unchanged): Remove.
+       (Input_reader::arg_serial): New function.
+       (Input_reader::get_unused_symbol_count): New function.
+       (Input_reader::get_unused_symbol): New function.
+       (Input_reader::do_arg_serial): New function.
+       (Input_reader::do_get_unused_symbol_count): New function.
+       (Input_reader::do_get_unused_symbol): New function.
+       (Incremental_binary::input_file_count): New function.
+       (Incremental_binary::get_input_reader): Change signature to use
+       index instead of filename.
+       (Incremental_binary::file_has_changed): New function.
+       (Incremental_binary::get_input_argument): New function.
+       (Incremental_binary::get_library): New function.
+       (Incremental_binary::get_script_info): New function.
+       (Incremental_binary::init_layout): New function.
+       (Incremental_binary::reserve_layout): New function.
+       (Incremental_binary::output_file): New function.
+       (Incremental_binary::do_check_inputs): New function.
+       (Incremental_binary::do_file_is_unchanged): Remove.
+       (Incremental_binary::do_file_has_changed): New function.
+       (Incremental_binary::do_init_layout): New function.
+       (Incremental_binary::do_reserve_layout): New function.
+       (Incremental_binary::do_input_file_count): New function.
+       (Incremental_binary::do_get_input_reader): Change signature.
+       (Incremental_binary::input_args_map_): New data member.
+       (Incremental_binary::library_map_): New data member.
+       (Incremental_binary::script_map_): New data member.
+       (Sized_incremental_binary::Sized_incremental_binary): Initialize
+       new data members.
+       (Sized_incremental_binary::output_section): New function.
+       (Sized_incremental_binary::inputs_reader): Add const.
+       (Sized_incremental_binary::symtab_reader): Add const.
+       (Sized_incremental_binary::relocs_reader): Add const.
+       (Sized_incremental_binary::got_plt_reader): Add const.
+       (Sized_incremental_binary::get_symtab_view): New function.
+       (Sized_incremental_binary::Inputs_reader): New typedef.
+       (Sized_incremental_binary::Input_entry_reader): New typedef.
+       (Sized_incremental_binary::do_check_inputs): Add cmdline parameter.
+       (Sized_incremental_binary::do_file_is_unchanged): Remove.
+       (Sized_incremental_binary::do_file_has_changed): New function.
+       (Sized_incremental_binary::do_init_layout): New function.
+       (Sized_incremental_binary::do_reserve_layout): New function.
+       (Sized_input_reader::Inputs_reader): Remove.
+       (Sized_input_reader::Input_entry_reader): Remove.
+       (Sized_input_reader::do_arg_serial): New function.
+       (Sized_input_reader::do_get_unused_symbol_count): New function.
+       (Sized_input_reader::do_get_unused_symbol): New function.
+       (Sized_incremental_binary::do_input_file_count): New function.
+       (Sized_incremental_binary::do_get_input_reader): Change signature;
+       use index instead of filename.
+       (Sized_incremental_binary::section_map_): New data member.
+       (Sized_incremental_binary::input_entry_readers_): New data member.
+       (class Sized_incr_relobj): New class.
+       (class Sized_incr_dynobj): New class.
+       (make_sized_incremental_object): New function.
+       (class Incremental_library): New class.
+       * layout.cc (Free_list::num_lists): New static data member.
+       (Free_list::num_nodes): New static data member.
+       (Free_list::num_removes): New static data member.
+       (Free_list::num_remove_visits): New static data member.
+       (Free_list::num_allocates): New static data member.
+       (Free_list::num_allocate_visits): New static data member.
+       (Free_list::init): New function.
+       (Free_list::remove): New function.
+       (Free_list::allocate): New function.
+       (Free_list::dump): New function.
+       (Free_list::print_stats): New function.
+       (Layout_task_runner::run): Resize output file for incremental updates.
+       (Layout::Layout): Initialize new data members.
+       (Layout::set_incremental_base): New function.
+       (Layout::init_fixed_output_section): New function.
+       (Layout::layout_eh_frame): Do not build .eh_frame_hdr section for
+       incremental updates.
+       (Layout::create_gold_note): Do not create gold note section for
+       incremental updates.
+       (Layout::set_segment_offsets): Do not recalculate RELRO alignment
+       for incremental updates.
+       (Layout::set_section_offsets): For incremental updates, allocate space
+       from free list.
+       (Layout::create_symtab_sections): Layout with offsets relative to
+       start of section; for incremental updates, allocate space from free
+       list.
+       (Layout::create_shdrs): For incremental updates, allocate space from
+       free list.
+       (Layout::finish_dynamic_section): For incremental updates, do not
+       check --as-needed (fixed in subsequent patch).
+       * layout.h (class Free_list): New class.
+       (Layout::set_incremental_base): New function.
+       (Layout::incremental_base): New function.
+       (Layout::init_fixed_output_section): New function.
+       (Layout::allocate): New function.
+       (Layout::incremental_base_): New data member.
+       (Layout::free_list_): New data member.
+       * main.cc (main): Print Free_list statistics.
+       * object.cc (Relobj::finalize_incremental_relocs): Add
+       clear_counts parameter; clear counts only when clear_counts is set.
+       (Sized_relobj::Sized_relobj): Initialize new base class.
+       (Sized_relobj::do_layout): Don't report special sections.
+       (Sized_relobj::do_for_all_local_got_entries): New function.
+       (Sized_relobj::write_local_symbols): Add symtab_off parameter; add
+       symtab_off to all symbol table offsets.
+       (Sized_relobj::do_get_global_symbol_counts): Add typename keyword.
+       * object.h (class Got_offset_list): Move to top of file.
+       (Object::Object): Allow case where input_file == NULL.
+       (Object::~Object): Likewise.
+       (Object::input_file): Assert that input_file != NULL.
+       (Object::lock): Allow case where input_file == NULL.
+       (Object::unlock): Likewise.
+       (Object::is_locked): Likewise.
+       (Object::token): Likewise.
+       (Object::release): Likewise.
+       (Object::is_incremental): New function.
+       (Object::get_mtime): New function.
+       (Object::for_all_local_got_entries): New function.
+       (Object::clear_view_cache_marks): Allow case where input_file == NULL.
+       (Object::set_is_in_system_directory): New function.
+       (Object::is_in_system_directory): New function.
+       (Object::do_is_incremental): New function.
+       (Object::do_get_mtime): New function.
+       (Object::do_for_all_local_got_entries): New function.
+       (Object::is_in_system_directory_): New data member.
+       (Relobj::finalize_incremental_relocs): Add clear_counts parameter.
+       (class Sized_relobj_base): New class.
+       (class Sized_relobj): Derive from Sized_relobj_base.
+       (class Sized_relobj::Symbols): Redeclare from base class.
+       (class Sized_relobj::local_got_offset_list): Remove.
+       (class Sized_relobj::Output_sections): Redeclare from base class.
+       (class Sized_relobj::do_for_all_local_got_entries): New function.
+       (class Sized_relobj::write_local_symbols): Add offset parameter.
+       (class Sized_relobj::local_symbol_offset_): Update comment.
+       (class Sized_relobj::local_dynsym_offset_): Update comment.
+       * options.cc (Input_arguments::add_file): Remove const.
+       * options.h (Input_file_argument::Input_file_argument):
+       Initialize arg_serial_ (all constructors).
+       (Input_file_argument::set_arg_serial): New function.
+       (Input_file_argument::arg_serial): New function.
+       (Input_file_argument::arg_serial_): New data member.
+       (Input_arguments::Input_arguments): Initialize file_count_.
+       (Input_arguments::add_file): Remove const.
+       (Input_arguments::number_of_input_files): New function.
+       (Input_arguments::file_count_): New data member.
+       (Command_line::number_of_input_files): Call
+       Input_arguments::number_of_input_files.
+       * output.cc (Output_segment_headers::Output_segment_headers):
+       Set current size.
+       (Output_section::Input_section::current_data_size): New function.
+       (Output_section::Output_section): Initialize new data members.
+       (Output_section::add_input_section): Don't do merge sections for
+       an incremental link; allocate space from free list for an
+       incremental update.
+       (Output_section::add_output_section_data): Allocate space from
+       free list for an incremental update.
+       (Output_section::update_data_size): New function.
+       (Output_section::set_fixed_layout): New function.
+       (Output_section::reserve): New function.
+       (Output_segment::set_section_addresses): Remove const.
+       (Output_segment::set_section_list_addresses): Remove const; allocate
+       space from free list for an incremental update.
+       (Output_segment::set_offset): Adjust size of RELRO segment for an
+       incremental update.
+       * output.h (Output_data::current_data_size): Move here from
+       child classes.
+       (Output_data::pre_finalize_data_size): New function.
+       (Output_data::update_data_size): New function.
+       (Output_section_headers::update_data_size): new function.
+       (Output_section_data_build::current_data_size): Move to Output_data.
+       (Output_data_strtab::update_data_size): New function.
+       (Output_section::current_data_size): Move to Output_data.
+       (Output_section::set_fixed_layout): New function.
+       (Output_section::has_fixed_layout): New function.
+       (Output_section::reserve): New function.
+       (Output_section::update_data_size): New function.
+       (Output_section::has_fixed_layout_): New data member.
+       (Output_section::free_list_): New data member.
+       (Output_segment::set_section_addresses): Remove const.
+       (Output_segment::set_section_list_addresses): Remove const.
+       * plugin.cc (Sized_pluginobj::do_for_all_local_got_entries):
+       New function.
+       * plugin.h (Sized_pluginobj::do_for_all_local_got_entries):
+       New function.
+       * readsyms.cc (Read_symbols::do_read_symbols): Add library
+       parameter when calling Add_symbols constructor; store argument
+       serial number for members of a lib group.
+       (Add_symbols::locks): Allow case where token == NULL.
+       (Add_symbols::run): Report libraries denoted by --start-lib/--end-lib.
+       (Read_member::~Read_member): New function.
+       (Read_member::is_runnable): New function.
+       (Read_member::locks): New function.
+       (Read_member::run): New function.
+       (Check_script::~Check_script): New function.
+       (Check_script::is_runnable): New function.
+       (Check_script::locks): New function.
+       (Check_script::run): New function.
+       (Check_library::~Check_library): New function.
+       (Check_library::is_runnable): New function.
+       (Check_library::locks): New function.
+       (Check_library::run): New function.
+       * readsyms.h (Add_symbols::Add_symbols): Add library parameter.
+       (Add_symbols::library_): New data member.
+       (class Read_member): New class.
+       (class Check_script): New class.
+       (class Check_library): New class.
+       * reloc.cc (Read_relocs::is_runnable): Allow case where
+       token == NULL.
+       (Read_relocs::locks): Likewise.
+       (Scan_relocs::locks): Likewise.
+       (Relocate_task::locks): Likewise.
+       (Sized_relobj::do_scan_relocs): Tell finalize_incremental_relocs
+       to clear counters.
+       (Sized_relobj::incremental_relocs_scan): Fix comment.
+       (Sized_relobj::do_relocate): Pass output file offset to
+       write_local_symbols.
+       (Sized_relobj::incremental_relocs_write_reltype): Use reloc_size
+       from class declaration.
+       * script.cc (read_input_script): Allocate Script_info; pass
+       argument serial number to report_script.
+       * script.h (class Script_info): Move to incremental.h.
+       * symtab.cc (Symbol_table::add_from_incrobj): New function.
+       * symtab.h (Symbol_table::add_from_incrobj): New function.
+       (Symbol_table::set_file_offset): New function.
+
+2011-04-05  Cary Coutant  <ccoutant@google.com>
+
+       * incremental-dump.cc (dump_incremental_inputs): Change signature
+       to take a Sized_incremental_binary; change caller.  Use readers
+       in Sized_incremental_binary.
+       * incremental.cc
+       (Sized_incremental_binary::find_incremental_inputs_sections):
+       Rename do_find_incremental_inputs_sections to this.
+       (Sized_incremental_binary::setup_readers): New function.
+       (Sized_incremental_binary::do_check_inputs): Check
+       has_incremental_info_ flag; move setup code to setup_readers;
+       use input readers.
+       (Sized_incremental_binary::do_file_is_unchanged): New function.
+       (Sized_incremental_binary::do_get_input_reader): New function.
+       * incremental.h (class Incremental_binary): Move to end of file.
+       (Incremental_binary::file_is_unchanged): New function.
+       (Incremental_binary::do_file_is_unchanged): New function.
+       (Incremental_binary::Input_reader): New class.
+       (Incremental_binary::get_input_reader): New function.
+       (class Sized_incremental_binary): Move to end of file.
+       (Sized_incremental_binary::Sized_incremental_binary): Setup the
+       input section reader classes.
+       (Sized_incremental_binary::has_incremental_info): New function.
+       (Sized_incremental_binary::inputs_reader): New function.
+       (Sized_incremental_binary::symtab_reader): New function.
+       (Sized_incremental_binary::relocs_reader): New function.
+       (Sized_incremental_binary::got_plt_reader): New function.
+       (Sized_incremental_binary::do_file_is_unchanged): New function.
+       (Sized_incremental_binary::Sized_input_reader): New class.
+       (Sized_incremental_binary::get_input_reader): New function.
+       (Sized_incremental_binary::find_incremental_inputs_sections):
+       Rename do_find_incremental_inputs_sections to this.
+       (Sized_incremental_binary::setup_readers): New function.
+       (Sized_incremental_binary::has_incremental_info_): New data member.
+       (Sized_incremental_binary::inputs_reader_): New data member.
+       (Sized_incremental_binary::symtab_reader_): New data member.
+       (Sized_incremental_binary::relocs_reader_): New data member.
+       (Sized_incremental_binary::got_plt_reader_): New data member.
+       (Sized_incremental_binary::current_input_file_): New data member.
+
+2011-04-05  Paul Pluzhnikov  <ppluzhnikov@google.com>
+
+       PR gold/12640
+       * dwarf_reader.cc (Sized_dwarf_line_info): Fix vector bounds
+       violation.
+
+2011-03-30  Cary Coutant  <ccoutant@google.com>
+
+       * archive.cc (Archive::include_member): Adjust call to report_object.
+       (Add_archive_symbols::run): Add script_info to call to
+       report_archive_begin.
+       (Lib_group::include_member): Adjust call to report_object.
+       (Add_lib_group_symbols::run): Adjust call to report_object.
+       * incremental-dump.cc (dump_incremental_inputs): Remove unnecessary
+       blocks.  Add object count for script input files.
+       * incremental.cc (Incremental_inputs::report_archive_begin): Add
+       script_info parameter; change all callers.
+       (Incremental_inputs::report_object): Add script_info parameter;
+       change all callers.
+       (Incremental_inputs::report_script): Store backpointer to
+       incremental info entry.
+       (Output_section_incremental_inputs::set_final_data_size): Record
+       additional information for scripts.
+       (Output_section_incremental_inputs::write_info_blocks): Likewise.
+       * incremental.h (Incremental_script_entry::add_object): New function.
+       (Incremental_script_entry::get_object_count): New function.
+       (Incremental_script_entry::get_object): New function.
+       (Incremental_script_entry::objects_): New data member; adjust
+       constructor.
+       (Incremental_inputs::report_archive_begin): Add script_info parameter.
+       (Incremental_inputs::report_object): Add script_info parameter.
+       (Incremental_inputs_reader::get_object_count): New function.
+       (Incremental_inputs_reader::get_object_offset): New function.
+       * options.cc (Input_arguments::add_file): Return reference to
+       new input argument.
+       * options.h (Input_argument::set_script_info): New function.
+       (Input_argument::script_info): New function.
+       (Input_argument::script_info_): New data member; adjust all
+       constructors.
+       (Input_file_group::add_file): Return reference to new input argument.
+       (Input_file_lib::add_file): Likewise.
+       (Input_arguments::add_file): Likewise.
+       * readsyms.cc (Add_symbols::run): Adjust call to report_object.
+       * script.cc (Parser_closure::Parser_closure): Add script_info
+       parameter; adjust all callers.
+       (Parser_closure::script_info): New function.
+       (Parser_closure::script_info_): New data member.
+       (read_input_script): Report scripts earlier to incremental info.
+       (script_add_file): Set script_info in Input_argument.
+       (script_add_library): Likewise.
+       * script.h (Script_options::Script_info): Rewrite class.
+
+2011-03-29  Cary Coutant  <ccoutant@google.com>
+
+       * archive.cc (Library_base::should_include_member): Move
+       method here from class Archive.
+       (Archive::Archive): Initialize base class.
+       (Archive::should_include_member): Move to base class.
+       (Archive::do_for_all_unused_symbols): New function.
+       (Add_archive_symbols::run): Remove redundant access to
+       incremental_inputs.
+       (Lib_group::Lib_group): Initialize base class.
+       (Lib_group::do_filename): New function.
+       (Lib_group::include_member): Pass pointer to Lib_group to
+       report_object.
+       (Lib_group::do_for_all_unused_symbols): New function.
+       (Add_lib_group_symbols::run): Report archive information for
+       incremental links.
+       * archive.h (class Library_base): New base class.
+       (class Archive): Derive from Library_base.
+       (Archive::filename): Move to base class.
+       (Archive::set_incremental_info): Likewise.
+       (Archive::incremental_info): Likewise.
+       (Archive::Should_include): Likewise.
+       (Archive::should_include_member): Likewise.
+       (Archive::Armap_entry): Remove.
+       (Archive::Unused_symbol_iterator): Remove.
+       (Archive::unused_symbols_begin): Remove.
+       (Archive::unused_symbols_end): Remove.
+       (Archive::do_filename): New function.
+       (Archive::do_get_mtime): New function.
+       (Archive::do_for_all_unused_symbols): New function.
+       (Archive::task_): Move to base class.
+       (Archive::incremental_info_): Likewise.
+       (class Lib_group): Derive from Library_base.
+       (Lib_group::do_filename): New function.
+       (Lib_group::do_get_mtime): New function.
+       (Lib_group::do_for_all_unused_symbols): New function.
+       (Lib_group::task_): Move to base class.
+       * dynobj.cc (Sized_dynobj::do_for_all_global_symbols): New
+       function.
+       * dynobj.h (Sized_dynobj::do_for_all_global_symbols): New
+       function.
+       * incremental.cc (Incremental_inputs::report_archive_begin):
+       Use Library_base; call library's get_mtime; add incremental inputs
+       entry before members.
+       (class Unused_symbol_visitor): New class.
+       (Incremental_inputs::report_archive_end): Use Library_base; use
+       visitor class to record unused symbols; don't add incremental inputs
+       entry after members.
+       (Incremental_inputs::report_object): Use Library_base.
+       * incremental.h
+       (Incremental_archive_entry::Incremental_archive_entry): Remove
+       unused Archive parameter.
+       (Incremental_inputs::report_archive_begin): Use Library_base.
+       (Incremental_inputs::report_archive_end): Likewise.
+       (Incremental_inputs::report_object): Likewise.
+       * object.cc (Sized_relobj::do_for_all_global_symbols): New
+       function.
+       * object.h (Object::for_all_global_symbols): New function.
+       (Object::do_for_all_global_symbols): New function.
+       (Sized_relobj::do_for_all_global_symbols): New function.
+       * plugin.cc (Sized_pluginobj::do_for_all_global_symbols):  New
+       function.
+       * plugin.h (Sized_pluginobj::do_for_all_global_symbols):  New
+       function.
+
+2011-03-27  Ian Lance Taylor  <iant@google.com>
+
+       * archive.cc (Archive::interpret_header): Return -1 if something
+       goes wrong.  Change callers accordingly.
+
+2011-03-25  Cary Coutant  <ccoutant@google.com>
+
+       * testsuite/Makefile.am (final_layout.stdout): Use -n option with nm.
+       * testsuite/Makefile.in: Regenerate.
+
+2010-03-23  Rafael Ávila de Espíndola <respindola@mozilla.com>
+
+       * plugin.cc (get_view): New.
+       (Plugin::load): Pass get_view to the plugin.
+       (Plugin_manager::get_view): New.
+
+2011-03-21  Ian Lance Taylor  <iant@google.com>
+
+       * testsuite/final_layout.sh: Rewrite to not use dc.
+       * testsuite/relro_test.sh: Fail if dc is not present.
+
+2011-03-21  Sriraman Tallam  <tmsriram@google.com>
+
+       * testsuite/icf_safe_so_test.sh: Add #!/bin/sh to start.
+       Change == to -eq.
+       * testsuite/icf_string_merge_test.sh: Add #!/bin/sh to start.
+       * testsuite/icf_safe_test.sh: Add #!/bin/sh to start.
+       Change == to -eq.
+       * testsuite/icf_sht_rel_addend_test.sh: Add #!/bin/sh to start.
+       * testsuite/icf_preemptible_functions_test.sh: Add #!/bin/sh to start.
+
+2011-03-14  Ian Lance Taylor  <iant@google.com>
+
+       * script-sections.cc (Sort_output_sections::script_compare):
+       Rename from is_before, change return type.
+       (Sort_output_sections::operator()): Adjust accordingly.
+
+2011-03-11  Jeffrey Yasskin  <jyasskin@google.com>
+
+       PR gold/12572
+       * testsuite/odr_violation2.cc: Add comment to make all error line
+       numbers double digits.
+       * testsuite/debug_msg.sh: Adjust expected errors.
+
+2011-03-09  Jeffrey Yasskin  <jyasskin@google.com>
+
+       * dwarf_reader.cc (Sized_dwarf_line_info): Include all lines,
+       but mark earlier ones as non-canonical
+       (offset_to_iterator): Update search target and example
+       (do_addr2line): Return extra lines in a vector*
+       (format_file_lineno): Extract from do_addr2line
+       (one_addr2line): Add vector* out-param
+       * dwarf_reader.h (Offset_to_lineno_entry): New field recording
+       when a lineno entry appeared last for its instruction
+       (Dwarf_line_info): Add vector* out-param
+       * object.cc (Relocate_info): Pass NULL for the vector* out-param
+       * symtab.cc (Odr_violation_compare): Include the lineno in the
+       comparison again.
+       (linenos_from_loc): New. Combine the canonical line for an
+       address with its other lines.
+       (True_if_intersect): New. Helper functor to make
+       std::set_intersection a query.
+       (detect_odr_violations): Compare sets of lines instead of just
+       one line for each function. This became less deterministic, but
+       has fewer false positives.
+       * symtab.h: Declarations.
+       * testsuite/Makefile.am (odr_violation2.o): Compile with -O2 to
+       mix an optimized and non-optimized object in the same binary
+       (odr_violation2.so): Same.
+       * testsuite/Makefile.in: Regenerate from Makefile.am.
+       * testsuite/debug_msg.cc (main): Make OdrDerived classes.
+       * testsuite/debug_msg.sh: Update line numbers and add
+       assertions.
+       * testsuite/odr_violation1.cc: Use OdrDerived, in a
+       non-optimized context.
+       * testsuite/odr_violation2.cc: Make sure Ordering::operator()
+       isn't inlined, and use OdrDerived in an optimized context.
+       * testsuite/odr_header1.h: Defines OdrDerived, where
+       optimization will change the
+       first-instruction-in-the-destructor's file and line number.
+       * testsuite/odr_header2.h: Defines OdrBase.
+
+2011-03-09  Ian Lance Taylor  <iant@google.com>
+
+       * fileread.cc (File_read::clear_views): Don't delete the whole
+       file view.
+
+2011-03-08  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12525
+       * fileread.cc: #include <climits>.
+       (GOLD_IOV_MAX): Define.
+       (File_read::read_multiple): Limit number of entries by iov_max.
+       * fileread.h (class File_read): Always set max_readv_entries to
+       128.
+
+2011-03-07  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12525
+       * options.h (class General_options): Add -dy and -dn.
+
+2011-03-02  Cary Coutant  <ccoutant@google.com>
+
+       * testsuite/script_test_9.t: Add TLS segment.
+
+2011-03-02  Simon Baldwin  <simonb@google.com>
+
+       * configure.ac: Add check for gnu_indirect_function support in
+       the toolchain building binutils.
+       * configure: Rebuild.
+
+2010-02-18  Rafael Ávila de Espíndola <respindola@mozilla.com>
+
+       * symtab.cc (Symbol::should_add_dynsym_entry) Return false for
+       plugin only symbols.
+       (Symbol_table::sized_finalize_symbol) Mark symbol only present
+       in plugin files as not needed in the symbol table.
+
+2011-02-11  Sriraman Tallam  <tmsriram@google.com>
+
+       * output.cc (Output_section::add_input_section): Delay fill
+       generation for section ordering.
+
+2011-02-09  Ian Lance Taylor  <iant@google.com>
+
+       PR gold/12316
+       * object.h (class Sized_relobj): Remove clear_local_symbols.
+       * reloc.cc (Sized_relobj::do_relocate): Don't call
+       clear_local_symbols.
+
+2010-02-08  Rafael Ávila de Espíndola <respindola@mozilla.com>
+
+       * plugin.cc (is_visible_from_outside): Return true for symbols
+       in the -u option.
+
+2011-02-04  Jeffrey Yasskin  <jyasskin@google.com>
+
+       * symtab.cc (Odr_violation_compare::operator()): Sort by just the
+       filename.
+
+2011-02-02  Sriraman Tallam  <tmsriram@google.com>
+
+       * icf.h (is_section_foldable_candidate): Change type of parameter
+        to std::string.
+       * icf.cc (Icf::find_identical_sections): Change type of local variable
+        section_name to be std::string.
+       (is_function_ctor_or_dtor): Change type of parameter to std::string.
+
+2011-01-25  Ian Lance Taylor  <iant@google.com>
+
+       * script.cc (script_add_extern): Rewrite to use
+       add_symbol_reference.
+
+2011-01-25  Doug Kwan  <dougkwan@google.com>
+
+       * icf.cc (get_section_contents): Always lock section's object.
+
+2011-01-24  Ian Lance Taylor  <iant@google.com>
+
+       * options.h (class General_options): Accept
+       --no-detect-odr-violations.
+
+2011-01-24  Ian Lance Taylor  <iant@google.com>
+
+       * version.cc (version_string): Bump to 1.11.
+
+2011-01-24  Ian Lance Taylor  <iant@google.com>
+
+       * plugin.cc (class Plugin_rescan): Define new class.
+       (Plugin_manager::claim_file): Set any_claimed_.
+       (Plugin_manager::save_archive): New function.
+       (Plugin_manager::save_input_group): New function.
+       (Plugin_manager::all_symbols_read): Create Plugin_rescan task if
+       necessary.
+       (Plugin_manager::new_undefined_symbol): New function.
+       (Plugin_manager::rescan): New function.
+       (Plugin_manager::rescannable_defines): New function.
+       (Plugin_manager::add_input_file): Set any_added_.
+       * plugin.h (class Plugin_manager): define new fields rescannable_,
+       undefined_symbols_, any_claimed_, and any_added_.  Declare
+       Plugin_rescan as friend.  Declare new functions.
+       (Plugin_manager::Rescannable): Define type.
+       (Plugin_manager::Rescannable_list): Define type.
+       (Plugin_manager::Undefined_symbol_list): Define type.
+       (Plugin_manager::Plugin_manager): Initialize new fields.
+       * archive.cc (Archive::defines_symbol): New function.
+       (Add_archive_symbols::run): Pass archive to plugins if any.
+       * archive.h (class Archive): Declare defines_symbol.
+       * readsyms.cc (Input_group::~Input_group): New function.
+       (Finish_group::run): Pass input_group to plugins if any.
+       * readsyms.h (class Input_group): Declare destructor.
+       * symtab.cc (add_from_object): Pass undefined symbol to plugins if
+       any.
+
 2011-01-10  Ian Lance Taylor  <iant@google.com>
 
        * layout.cc (Layout::layout_eh_frame): Mark a writable .eh_frame