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

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

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.