* layout.cc (Layout::attach_allocated_section_to_segment): Don't
[deliverable/binutils-gdb.git] / gold / ChangeLog
index 3f77ed430784aad1bfea3808a47e3edba467df60..aec50a59f01fbc758ec4684ae2ccd00b572a4b1e 100644 (file)
@@ -1,5 +1,816 @@
+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.
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