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2013-07-30Add missing author to last ChangeLog entry.Cary Coutant1-0/+1
2013-07-30 gold/Cary Coutant1-0/+16
* parameters.cc (Parameters::entry): Return target-specific entry symbol name. * target.h (Target::entry_symbol_name): New function. (Target_info::entry_symbol_name): New data member. * arm.cc (Target_arm::arm_info): Add entry_symbol_name. (Target_arm_nacl::arm_nacl_info): Likewise. * i386.cc (Target_i386::i386_info): Likewise. (Target_i386_nacl::i386_nacl_info): Likewise. * powerpc.cc (Target_powerpc::powerpc_info): Likewise. * sparc.cc (Target_sparc::sparc_info): Likewise. * tilegx.cc (Target_tilegx::tilegx_info): Likewise. * x86_64.cc: (Target_x86_64::x86_64_info) Likewise. (Target_x86_64_nacl::x86_64_nacl_info) Likewise. * testsuite/testfile.cc (Target_test::test_target_info): Likewise.
2013-07-292013-07-22 Sterling Augustine <saugustine@google.com>Sterling Augustine1-0/+44
* dwarf_reader.cc (Dwarf_pubnames_table::read_section): Convert parameter shndx to local variable. Add parameters symtab and symtab_size. Scan over section names. Find relocation section corresponding to current section. Create and initialize reloc_mapper_ and reloc_type_. (Dwarf_pubnames_table::read_header): Add assertion. Change unit_length to off_t. Initialize member unit_length_. Fill in field cu_offset_. * dwarf_reader.h (Dwarf_pubnames_table::Dwarf_pubnames_table): Initialize new fields unit_length_ and cu_offset_. (Dwarf_pubnames_table::read_section): Update prototype. (Dwarf_pubnames_table::cu_offset): New member function. (Dwarf_pubnames_table::subsection_size): Likewise. (Dwarf_pubnames_table::cu_offset_, Dwarf_pubnames_table::unit_length): New fields. (Dwarf_info_reader::symtab, Dwarf_info_reader::symtab_size): Make member functions public. * gdb_index.cc (Gdb_index_info_reader::read_pubnames_and_pubtypes): Update comment. Rework logic. Move repeated parts to... (Gdb_index_info_reader::read_pubtable): ...here. New function. (Gdb_index::Gdb_index): Initialize new fields, pubnames_table_, pubtypes_table_, and stmt_list_offset. (Gdb_index::map_pubtable_to_dies, Gdb_index::find_pubname_offset, Gdb_index::find_pubtype_offset, Gdb_index::map_pubnames_and_types_to_dies): Define new functions. (Gdb_index::pubnames_read): Update prototype and rework logic. * gdb_index.h (Gdb_index_info_reader, Dwarf_pubnames_table): Forward declare. (Gdb_index::map_pubtable_to_dies, Gdb_index::find_pubname_offset, Gdb_index::find_pubtype_offset, Gdb_index::pubnames_table) Gdb_index::pubtypes_table, Gdb_index::map_pubnames_and_types_to_dies, Gdb_index::map_pubtable_to_dies): Declare functions. (Gdb_index::pubnames_read): Update declaration. (Gdb_index::Pubname_offset_map): New type. (Gdb_index::cu_pubname_map_, Gdb_index::cu_pubtype_map_, Gdb_index::pubnames_table_, Gdb_index::pubtypes_table_, Gdb_index::stmt_list_offset): Declare. (Gdb_index::pubnames_shndx_, Gdb_index::pubnames_offet_, Gdb_index::pubtypes_object_, Gdb_index::pubtypes_shndx_) Gdb_index::pubtypes_offset_): Remove.
2013-07-19gold/Roland McGrath1-0/+14
* options.h (General_options): Add -Trodata-segment option. * parameters.cc (Parameters::check_rodata_segment): New function. (Parameters::set_target_once): Call it. * parameters.h (Parameters): Declare it (private member function). * layout.cc (load_seg_unusable_for_headers): New function, broken out of Layout::relaxation_loop_body. If TARGET->isolate_execinstr() then validate rodata segment rather than text segment. (relaxation_loop_body): Call that. (is_text_segment): New function. Don't admit a non-executable segment if TARGET->isolate_execinstr(). (set_segment_offsets): Call it. Honor -Trodata-segment option.
2013-07-152013-07-15 Shawn Landden <shawnlandden@gmail.com>Cary Coutant1-0/+6
gold/ PR gold/15070 * fileread.h (File_read::get_view): Clarify comment about ALIGNED. * nacl.h (Sniff_file::View::View): Request aligned view.
2013-07-11gold/Cary Coutant1-0/+5
* powerpc.cc (Target_powerpc::write_branch_lookup_table): Use correct BRLT entry size.
2013-07-03bfd/Alan Modra1-0/+5
* elf64-ppc.c (struct ppc_stub_hash_entry): Delete "addend". (ppc64_elf_size_stubs): Don't set "addend". (ppc64_elf_relocate_section): Don't allow calls via toc-adjusting stubs without a following nop even in an executable, except for self-calls and both libc_start_main and .libc_start_main. gold/ * powerpc.cc (Target_powerpc::Relocate::relocate): Update self-call comment.
2013-07-01gold/Cary Coutant1-0/+11
* dwarf_reader.cc (Dwarf_ranges_table::read_ranges_table): Save reloc_type_. (Dwarf_ranges_table::read_range_list): Call lookup_reloc. (Dwarf_ranges_table::lookup_reloc): New function. * dwarf_reader.h (Dwarf_ranges_table::Dwarf_ranges_table): Initialize reloc_type_. (Dwarf_ranges_table::lookup_reloc): New function. (Dwarf_ranges_table::reloc_type_): New data member.
2013-06-27 PR gold/15662Cary Coutant1-0/+8
* powerpc.cc (Output_data_brlt_powerpc::reset_brlt_sizes): New function. (Output_data_brlt_powerpc::finalize_brlt_sizes): New function. (Target_powerpc::do_relax): Call the above.
2013-06-27 * powerpc.cc (Target_powerpc::symval_for_branch): Don't assertAlan Modra1-0/+12
on garbage collected .opd section. * powerpc.cc (Target_powerpc::do_gc_add_reference): Test dst_shndx is non-zero. (Target_powerpc::do_gc_mark_symbols): Likewise for sym->shndx(). (Target_powerpc::do_function_location): Likewise for loc->shndx.
2013-06-14gold/Cary Coutant1-0/+13
* resolve.cc (Symbol::override_base): Don't override st_type from plugin placeholder symbols. (Symbol_table::resolve): Likewise. (Symbol_table::should_override): Don't complain about TLS mismatch if the TO symbol is a plugin placeholder. * testsuite/Makefile.am (plugin_test_tls): New test. * testsuite/Makefile.in: Regenerate. * testsuite/plugin_test_tls.sh: New test script. * testsuite/two_file_test_2_tls.cc: New test source. * testsuite/two_file_test_tls.cc: New test source.
2013-06-052013-06-05 Alexander Ivchenko <alexander.ivchenko@intel.com>Cary Coutant1-0/+9
gold/ * layout.cc (Layout::set_segment_offsets): Taking care of the case when the maximum segment alignment is larger than the page size. * testsuite/Makefile.am (large_symbol_alignment): Test that Gold correctly aligns the symbols with large alignemnt. * testsuite/Makefile.in: Regenerate. * testsuite/large_symbol_alignment.cc: New file.
2013-05-302013-05-30 Alexander Ivchenko <alexander.ivchenko@intel.com>Cary Coutant1-0/+19
Sriraman Tallam <tmsriram@google.com> * options.h (sort_section): New option. * output.h (Input_section_sort_section_prefix_special_ordering_compare): Rename from Input_section_sort_section_name_special_ordering_compare. (Input_section_sort_section_name_compare): New struct. * output.cc (Output_section::Input_section_sort_section_name_compare:: operator()): New function. (Output_section::sort_attached_input_sections): Use new sort function for .text if --sort-section=name is specified. * layout.cc (Layout::make_output_section): Add sorting by name when --sort-section=name is specified. * testsuite/Makefile.am (text_section_grouping): Test option --sort-section=name. * testsuite/Makefile.in: Regenerate. * testsuite/section_sorting_name.cc: New file. * testsuite/section_sorting_name.sh: New file.
2013-05-21gold/Cary Coutant1-0/+9
* symtab.h (Symbol::is_cxx_vtable): New function. * target-reloc.h (relocate_section): Check for vtable symbol. * testsuite/Makefile.am (missing_key_func.sh): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/missing_key_func.cc: New test source. * testsuite/missing_key_func.sh: New test script.
2013-05-21gold/Cary Coutant1-0/+9
* object.cc (Sized_relobj_file::get_symbol_location_info): Set type of enclosing symbol. (Relocate_info::location): Check symbol type when describing symbol. * object.h (Symbol_location_info): Remove unused line_number; add enclosing_symbol_type. * testsuite/debug_msg.sh: Adjust expected output.
2013-05-13gold/Cary Coutant1-0/+11
* configure.ac: Export DEFAULT_TARGET. * configure: Regenerate. * Makefile.in: Regenerate. * testsuite/Makefile.am: Add .EXPORT_ALL_VARIABLES. * testsuite/Makefile.in: Regenerate. * testsuite/debug_msg.sh: Delete duplicate tests. Don't check undef_int error message match for powerpc where the source file and line number aren't available.
2013-05-10gold/Roland McGrath1-0/+7
* options.h (General_options): Add --rosegment-gap option. * options.cc (finalize): --rosegment-gap implies --rosegment. * layout.cc (set_segment_offsets): Let user option override target->rosegment_gap().
2013-05-10gold/Roland McGrath1-1/+6
* options.h (General_options): Remove leading space from help messages for -nostdlib and --rosegment.
2013-05-03 gold/Maciej W. Rozycki1-0/+5
PR ld/15365 * layout.cc (Layout::finalize): Make __ehdr_start STV_HIDDEN. ld/ PR ld/15365 * emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Restrict __ehdr_start's export class to no less than STV_HIDDEN. ld/testsuite/ PR ld/15365 * ld-elf/ehdr_start.d: Expect __ehdr_start to be STB_LOCAL. * ld-mips-elf/ehdr_start-1.nd: New test. * ld-mips-elf/ehdr_start-2.nd: New test. * ld-mips-elf/ehdr_start-1.ld: New test linker script. * ld-mips-elf/ehdr_start-2.ld: New test linker script. * ld-mips-elf/ehdr_start-new.s: New test source. * ld-mips-elf/ehdr_start-o32.s: New test source. * ld-mips-elf/mips-elf.exp: Run the new tests.
2013-05-03 * merge.cc (Output_merge_string::do_add_input_section): CorrectAlan Modra1-0/+6
scan for number of strings. Rename vars to avoid shadowing. Include missing terminator in input_size_.
2013-05-01Restore empty string handlingH.J. Lu1-0/+5
* merge.cc (Output_merge_string<Char_type>::do_add_input_section): Restore empty string handling.
2013-05-01gold/Cary Coutant1-0/+5
* stringpool.cc (Stringpool_template::new_key_offset): Fix uninitialized warning.
2013-04-292013-04-29 Alexander Ivchenko <alexander.ivchenko@intel.com>Cary Coutant1-0/+23
gold/ * output.cc (Output_section::add_merge_input_section): Allow to merge sections if the alignment is more than character size. * merge.h (Output_merge_string::Output_merge_string): Remove assert. * merge.cc (Output_merge_string<Char_type>::do_add_input_section): Count only not-null strings. Check the alignment of strings. * stringpool.h (Stringpool_template<Stringpool_char>::Stringpool_template): Add alignment as the argument. (Stringpool_template<Stringpool_char>::addralign_): New class member. * stringpool.cc (Stringpool_template<Stringpool_char>::new_key_offset): Align non-zero length strings according to the addralign_. (Stringpool_template<Stringpool_char>::set_string_offsets): Updating offsets according to the given alignment. * testsuite/Makefile.am (text_section_grouping): Test if string literals are getting merged. * testsuite/Makefile.in: Regenerate. * testsuite/merge_string_literals_1.c: New file. * testsuite/merge_string_literals_2.c: Ditto. * testsuite/merge_string_literals.sh: Ditto.
2013-04-27 * target-reloc.h (relocate_section): If the reloc offset is out ofIan Lance Taylor1-0/+11
range, pass VIEW as NULL to relocate.relocate. * arm.cc (Target_arm:Relocate::relocate): Check for a NULL view. * i386.cc (Target_i386::Relocate::relocate): Likewise. * powerpc.cc (Target_powerpc::Relocate::relocate): Likewise. * sparc.cc (Target_sparc::Relocate::relocate): Likewise. * tilegx.cc (Target_tilegx::Relocate::relocate): Likewise. * x86_64.cc (Target_x86_64::Relocate::relocate): Likewise.
2013-04-262013-04-26 Geoff Pike <gpike@chromium.org>Cary Coutant1-0/+18
gold/ * gold.cc (queue_final_tasks): invoke layout->queue_build_id_tasks(). * layout.cc (Hash_task): New class. (Layout::queue_build_id_tasks): New function. (Layout::write_build_id): Handle single-thread portion of build ID computation. (In some cases, all of it is single-threaded.) Replace {sha1,md5}_process_bytes with {sha1,md5}_buffer to get the same functionality in fewer lines of code. * layout.h (Layout::queue_build_id_tasks): New function declaration. * options.h (General_options): make "--build-id" default to tree rather than sha1. Add two new options related to --build-id=tree: --build-id-chunk-size-for-treehash and --build-id-min-file-size-for-treehash. * Makefile.am: add testing of --build-id=tree and related new options (these tests will be invoked by "make check"). * Makefile.in: Regenerate.
2013-04-25bfd/Alan Modra1-0/+4
* config.bfd: Add powerpc64le-linux. gas/ * configure.in: Allow little-endian linux. * configure: Regenerate. gold/ * configure.tgt: Add powerpcle and powerpc64le. ld/ * Makefile.am (ALL_EMULATION_SOURCES): Add eelf32lppclinux.c. (eelf32lppclinux.c): New rule. * Makefile.in: Regenerate. * configure.tgt: Merge powerpc-linux and other powerpc-elf targets with corresponding little-endian targets. * emulparams/elf32lppc.sh: Update comment. * emulparams/elf32lppclinux.sh: New.
2013-04-21 PR gold/15355Alan Modra1-22/+28
* layout.cc (Layout::segment_precedes): Allow more than one segment with the same type and flags.
2013-04-15gold/Cary Coutant1-0/+5
* layout.cc (Layout::set_relocatable_section_offsets): Don't allocate space in file for BSS sections.
2013-04-15gold/Cary Coutant1-0/+5
* script-sections.cc (Orphan_output_section): Reset address to zero after each orphaned section for relocatable links.
2013-04-15gold/Cary Coutant1-0/+9
* symtab.cc (Symbol_table::sized_write_globals): Subtract section starting address for relocatable link. * testsuite/Makefile.am (script_test_11): New test. * testsuite/Makefile.in: Regenerate. * testsuite/script_test_11.c: New source file. * testsuite/script_test_11.t: New linker script.
2013-04-13 * powerpc.cc (Stub_control::can_add_to_stub_group): Don't setAlan Modra1-0/+9
owner when sections are not adjacent and exceed group size. (Target_powerpc::group_sections): Handle corner case. (Target_powerpc::Branch_info::make_stub): Handle case where stub table doesn't exist due to branches in non-exec sections. (Target_powerpc::Relocate::relocate): Likewise.
2013-04-11 PR gold/15354Alan Modra1-0/+6
* powerpc.cc (Target_powerpc::make_brlt_section): Name section .branch_lt to match bfd ld. Adjust comments throughout file.
2013-04-04 GCC PR c++/56840Ian Lance Taylor1-0/+6
* object.cc (do_layout_deferred_sections): Handle .eh_frame sections before checking whether they are included in the link.
2013-03-302013-03-29 Sriraman Tallam <tmsriram@google.com>Sriraman Tallam1-0/+7
* archive.cc (Archive::get_elf_object_for_member): Create the elf object before calling the plugin claim_file handler. Pass the elf object of the archive to the plugin. Delete the elf object if the plugin claims the file.
2013-03-21 * layout.cc (Layout::set_segment_offsets): Accept writable .textAlan Modra1-0/+5
segment when omagic.
2013-03-21 * dwp.cc (Dwp_output_file::add_contribution): Avoid signed/unsignedAlan Modra1-0/+7
comparison warning. * layout.cc (Layout::create_dynamic_symtab): Avoid "may be used uninitialized" warning.
2013-03-20 * symtab.h (Symbol::clear_version): New function.Alan Modra1-0/+7
* symtab.cc (Symbol_table::set_dynsym_indexes): Don't set object is_needed by weak references. Clear version for symbols defined in as-needed objects that are not needed.
2013-03-15 * powerpc.cc (Target_powerpc::Scan::reloc_needs_plt_for_ifunc): MakeAlan Modra1-0/+16
static and public. Add report_err param. Return false for data refs. (Target_powerpc::rela_dyn_section): New overloaded function. (Target_powerpc::plt_, iplt_): Elucidate. (Output_data_plt_powerpc::entry_count): Handle current_data_size()==0. (Output_data_plt_powerpc::do_write): Don't write .iplt. (Output_data_plt_powerpc::plt_entry_count): Don't add .iplt entries. (Target_powerpc::Scan::local, global): Adjust reloc_needs_plt_for_ifunc calls. Put ifunc dynamic relocs in irela_dyn_section. Only push_branch and make_plt_entry for ifunc syms when reloc_needs_plt_for_ifunc. (Target_powerpc::Relocate::relocate): Don't use plt entry value for ifunc unless reloc_needs_plt_for_ifunc.
2013-03-15 * gc.h (gc_process_relocs): Don't look through function descriptors.Alan Modra1-0/+5
* icf.cc (get_section_contents): Do so here instead.
2013-03-12 * powerpc.cc (is_branch_reloc): Forward declare.Alan Modra1-0/+20
(Target_powerpc::do_can_check_for_function_pointers): New predicate. (Target_powerpc::Scan::local_reloc_may_be_function_pointer): Return false for 64-bit, true for 32-bit non-branch relocs. (Target_powerpc::Scan::global_reloc_may_be_function_pointer): Likewise. * testsuite/Makefile.am (icf_test): Use linker map file instead of nm output. (icf_safe_test): Generate linker map file as well as nm output. (icf_safe_so_test): Likewise. * testsuite/Makefile.in: Regenerate. * testsuite/icf_test.sh: Parse linker map file to determine section folding. * testsuite/icf_safe_test.sh: Likewise. Expect folding for PowerPC. * testsuite/icf_safe_so_test.sh: Likewise. (X86_32_or_ARM_specific_safe_fold): Merge into.. (arch_specific_safe_fold): ..this. (X86_64_specific_safe_fold): Delete unused function.
2013-03-12 * gc.h (gc_process_relocs): Look through function descriptorsAlan Modra1-0/+6
to determine shndx, symvalue and addend used by ICF. Tidy variable duplication.
2013-03-10 * gold.cc (queue_middle_tasks): Move detect_odr_violations..Alan Modra1-0/+20
* layout.cc (Layout_task_runner::run): ..to here. * symtab.h (struct Symbol_location): Extract from.. (class Symbol_table): ..here. * symtab.cc (Symbol_table::linenos_from_loc): Invoke function_location. * target.h (class Target): Add function_location and do_function_location functions. (class Sized_target): Add do_function_location. * object.h (class Sized_relobj_file): Move find_shdr.. (class Object): ..to here. * object.cc: Likewise. Update to suit. Instantiate. (Sized_relobj_file::find_eh_frame): Update find_shdr call. * powerpc.cc (class Powerpc_dynobj): New. (Target_powerpc::do_function_location): New function. (Powerpc_relobj::do_find_special_sections): Update find_shdr call. (Powerpc_dynobj::do_read_symbols): New function. (Target_powerpc::do_make_elf_object): Make a Powerpc_dynobj.
2013-03-08 * options.cc (General_options::string_to_object_format): AcceptIan Lance Taylor1-0/+5
"default".
2013-03-07 * ehframe.h (Post_fdes) Make it a vector of Post_fde rather thanAlan Modra1-0/+9
pointer to Post_fde. (struct Post_fde): Move definition to here.. * ehframe.cc (struct Post_fde): ..from here. (Cie::write): Don't alloc Post_fde. (Eh_frame::do_sized_write): Update. Don't free Post_fde.
2013-03-07 * testsuite/discard_locals_relocatable_test.c: Add a powerpcAlan Modra1-0/+6
relocation referencing .LC0. * testsuite/discard_locals_test.sh: Remove FIXMEs.
2013-03-07 * testsuite/ifunc-sel.h (ifunc_sel, ifunc_one): MarkAlan Modra1-0/+5
always_inline. Add assembly for powerpc to avoid GOT.
2013-03-07 * testsuite/script_test_10.sh: Don't test .bss sectionAlan Modra1-0/+5
header number.
2013-03-06 * powerpc.cc (class Powerpc_relobj): Move some member functions.Alan Modra1-0/+9
(Target_powerpc::symval_for_branch): Add symtab param. Update all callers. Handle folded sections. (Target_powerpc::do_gc_add_reference): Don't cast dynamic object to Powerpc_relobj. (Global_symbol_visitor_opd::operator()): Likewise.
2013-03-04 * testsuite/Makefile.am (final_layout_script.lds): Add .sbss.Alan Modra1-0/+5
* testsuite/Makefile.in: Regenerate.
2013-03-01Add dwp support for v2 DWARF package file format.Cary Coutant1-0/+73
gold/ * dwarf_reader.cc (Dwarf_info_reader::visit_type_unit): Add tu_length parameter. Adjust all callers. * dwarf_reader.h (Dwarf_info_reader::visit_type_unit): Likewise. * dwp.cc: Include dwarf.h. (Section_bounds): New struct type. (Unit_set): New struct type. (Dwo_file::Dwo_file): Initialize new data member. (Dwo_file::read_compunit_index, Dwo_file::read_typeunit_index): Combine and rename to... (Dwo_file::read_unit_index): ...this. (Dwo_file::sized_read_compunit_index) (Dwo_file::sized_read_typeunit_index): Combine and rename to... (Dwo_file::sized_read_unit_index): ...this. (Dwo_file::copy_section): Remove section_name, is_str_offsets parameters; add section_id parameter. (Dwo_file::add_cu_set, Dwo_file::add_tu_set): Combine and rename to... (Dwo_file::add_unit_set): ...this. (Dwo_file::shndx_map_): Remove. (Dwo_file::sect_offsets_): New data member. (Dwp_output_file::Dwp_output_file): Initialize new data members. (Dwp_output_file::add_section): Rename to... (Dwp_output_file::add_contribution): ...this. (Dwp_output_file::add_cu_set): Combine parameters into a struct. (Dwp_output_file::add_tu_set): Likewise. (Dwp_output_file::Contribution): New type. (Dwp_output_file::Section::contributions): New data member. (Dwp_output_file::Cu_or_tu_set): Remove. (Dwp_output_file::Section::Section): New ctor. (Dwp_output_file::Dwp_index::Shndx_pool): Remove. (Dwp_output_file::Dwp_index::Section_table): New type. (Dwp_output_file::Dwp_index::Dwp_index): Initialize new data members. (Dwp_output_file::Dwp_index::enter_set): Change type of "set" parameter. (Dwp_output_file::Dwp_index::shndx_pool): Remove. (Dwp_output_file::Dwp_index::shndx_pool_end): Remove. (Dwp_output_file::Dwp_index::section_table): New member function. (Dwp_output_file::Dwp_index::section_table_end): New member function. (Dwp_output_file::Dwp_index::shndx_pool_size): Remove. (Dwp_output_file::Dwp_index::section_table_rows): New member function. (Dwp_output_file::Dwp_index::section_table_cols): New member function. (Dwp_output_file::Dwp_index::shndx_pool_): Remove. (Dwp_output_file::Dwp_index::section_table_): New data member. (Dwp_output_file::Dwp_index::section_mask_): New data member. (Dwp_output_file::add_output_section): New member function. (Dwp_output_file::write_new_section): New member function. (Dwp_output_file::write_contributions): New member function. (Dwp_output_file::section_id_map_): New data member. (class Dwo_id_info_reader): Remove. (class Unit_reader): New class. (get_dwarf_section_name): New function. (Dwo_file::read_executable): Adjust initializations of class data. (Dwo_file::read): Add support for v2 package file format. (Dwo_file::read_unit_index): Likewise. (Dwo_file::sized_read_unit_index): Likewise. (Dwo_file::copy_section): Likewise. (Dwo_file::add_unit_set): Likewise. (Dwp_output_file::add_output_section): Likewise. (Dwp_output_file::add_contribution): Likewise. (Dwp_output_file::Dwp_index::find_or_add): Use row index to check for empty slot. (Dwp_output_file::Dwp_index::enter_set): Add support for v2 package file format. (Dwp_output_file::Dwp_index::grow): Use row index to check for empty slot. (Dwp_output_file::initialize): Remove unused function. (Dwp_output_file::finalize): Add support for v2 package file format. (Dwp_output_file::write_index): Likewise. * gdb-index.cc (Gdb_index_info_reader::visit_type_unit): Adjust function prototype.