* layout.cc (Layout::segment_precedes): Don't crash if a linker
script create indistinguishable segments.
(Layout::set_segment_offsets): Use stable_sort when sorting
segments. Pass this to Compare_segments constructor.
* layout.h (class Layout): Make segment_precedes non-static.
(class Compare_segments): Change from struct to class. Add
layout_ field. Add constructor.
* script-sections.cc
(Script_sections::attach_sections_using_phdrs_clause): Rename
local orphan to is_orphan. Don't report failure to put empty
section in segment. On attachment failure, report name of
section, and attach to first PT_LOAD segment.
* target-select.cc (Target_selector::Target_selector): Add
emulation parameter. Change all callers.
(select_target_by_bfd_name): Rename from select_target_by_name.
Change all callers.
(select_target_by_emulation): New function.
(supported_emulation_names): New function.
* target-select.h (class Target_selector): Add emulation_ field.
Update declarations.
(Target_selector::recognize_by_bfd_name): Rename from
recognize_by_name. Change all callers.
(Target_selector::supported_bfd_names): Rename from
supported_names. Change all callers.
(Target_selector::recognize_by_emulation): New function.
(Target_selector::supported_emulations): New function.
(Target_selector::emulation): New function.
(Target_selector::do_recognize_by_bfd_name): Rename from
do_recognize_by_name. Change all callers.
(Target_selector::do_supported_bfd_names): Rename from
do_supported_names. Change all callers.
(Target_selector::do_recognize_by_emulation): New function.
(Target_selector::do_supported_emulations): New function.
(select_target_by_bfd_name): Change name in declaration.
(select_target_by_emulation): Declare.
(supported_emulation_names): Declare.
* parameters.cc (parameters_force_valid_target): Try to find
target based on emulation from -m option.
* options.h (class General_options): Change doc string for -m.
* options.cc (help): Print emulations.
(General_options::parse_V): Likewise.
* freebsd.h (Target_selector_freebsd::Target_selector_freebsd):
Add emulation parameter. Change all callers.
* arm.cc (Arm_relocate_functions::thm_jump8,
Arm_relocate_functions::thm_jump11): Use a wider signed
type to compute offset.
* testsuite/Makefile.am: Add new tests arm_thm_jump11 and
arm_thm_jump8.
* testsuite/Makefile.in: Regenerate.
* testsuite/arm_branch_in_range.sh: Check test results of
arm_thm_jump11 and arm_thm_jump8.
* testsuite/arm_thm_jump11.s: New test source file.
* testsuite/arm_thm_jump11.t: New linker script.
* testsuite/arm_thm_jump8.s: New test source file.
* testsuite/arm_thm_jump8.t: New linker script.
(ctors_sections_in_init_array): New static variable.
(Layout::is_ctors_in_init_array): New function.
(Layout::layout): Add entry to ctors_sections_in_init_array if
appropriate.
* layout.h (class Layout): Declare is_ctors_in_init_array.
* reloc.cc (Sized_relobj_file::do_relocate): Call reverse_words if
is_ctors_reverse_view is set.
(Sized_relobj_file::write_sections): Add layout parameter. Change
all callers. Set is_ctors_reverse_view field of View_size.
(Sized_relobj_file::reverse_words): New function.
* object.h (Sized_relobj_file::View_size): Add
is_ctors_reverse_view field.
(class Sized_relobj_file): Update declarations.
* testsuite/initpri3.c: New test.
* testsuite/Makefile.am: (check_PROGRAMS): Add initpri3a and
initpri3b.
(initpri3a_SOURCES, initpri3a_DEPENDENCIES): New variables.
(initpri3a_LDFLAGS, initpri3a_LDADD): New variables.
(initpri3b_SOURCES, initpri3b_DEPENDENCIES): New variables.
(initpri3b_LDFLAGS, initpri3b_LDADD): New variables.
* testsuite/Makefile.in: Rebuild.
(debug_msg_cdebug.o, odr_violation1_cdebug.o, odr_violation2_cdebug.o)
(debug_msg_cdebug.err): New targets.
* testsuite/Makefile.in: Regenerate.
* testsuite/debug_msg.sh: Check output of link with compressed debug.
Fix checks for link with shared library.
* arm.cc (Arm_output_section::append_text_sections_to_list): Do not
skip empty text sections.
* testsuite/arm_exidx_test.s: Test handling of an empty text section.
* options.h (class General_options): Add --ctors-in-init-array.
* layout.cc (Layout::get_output_section): Treat SHT_INIT_ARRAY and
friends as SHT_PROGBITS for merging sections.
(Layout::layout): Remove special handling of .init_array and
friends. Don't sort if doing relocatable link. Sort for .ctors
and .dtors if ctors_in_init_array.
(Layout::make_output_section): Force correct section types for
.init_array and friends. Don't sort if doing relocatable link,
Don't sort .ctors and .dtors if ctors_in_init_array.
(Layout::section_name_mapping): Remove .ctors. and .dtorso.
(Layout::output_section_name): Add relobj parameter. Change all
callers. Handle .ctors. and .dtors. in code rather than table.
Handle .ctors and .dtors if ctors_in_init_array.
(Layout::match_file_name): New function, moved from output.cc.
* layout.h (class Layout): Update declarations.
* output.cc: Include "layout.h".
(Input_section_sort_entry::get_priority): New function.
(Input_section_sort_entry::match_file_name): Just call
Layout::match_file_name.
(Output_section::Input_section_sort_init_fini_compare::operator()):
Handle .ctors and .dtors. Sort by explicit priority rather than
by name.
* configure.ac: Remove CONSTRUCTOR_PRIORITY test and conditional.
* testsuite/initpri2.c: New test.
* testsuite/Makefile.am: Don't test CONSTRUCTOR_PRIORITY.
(check_PROGRAMS): Add initpri2.
(initpri2_SOURCES, initpri2_DEPENDENCIES): New variables.
(initpri2_LDFLAGS, initpri2_LDADD): New variables.
* configure, testsuite/Makefile.in: Rebuild.
* layout.cc (Layout::attach_allocated_section_to_segment): Add a
.interp section to a PT_INTERP segment even if we have seen a
--dynamic-linker option. Don't do it if we have seen a PHDRS
clause in a linker script.
(Layout::finalize): Don't create a .interp section if we've
already create a PT_INTERP segment.
(Layout::create_interp): Always call choose_output_section (revert
patch of 2011-06-17). Don't create PT_INTERP segment.
* script-sections.cc
(Script_sections::create_note_and_tls_segments): Add a .interp
section to a PT_INTERP segment even if we have seen a
--dynamic-linker option.
* layout.h (class Layout): Add interp_segment_ field.
* layout.cc (Layout::Layout): Initialize interp_segment_ field.
(Layout::attach_allocated_section_to_segment): If making shared
library, put .interp section in PT_INTERP segment.
(Layout::finalize): Also call create_interp if -dynamic-linker
option was used.
(Layout::create_interp): Assert that there is no PT_INTERP
segment. If not using a SECTIONS clause, use make_output_section.
(Layout::make_output_segment): Set interp_segment_ if PT_INTERP.
* script-sections.cc
(Script_sections::create_note_and_tls_segments): If making shared
library, put .interp section in PT_INTERP segment.
* gold/gold.cc (queue_initial_tasks): Warn if --incremental is
used with --compress-debug-sections.
* gold/object.cc (Sized_relobj_file::do_layout): Report
uncompressed size of compressed input sections.
instead of emit_copy_reloc.
(Copy_relocs::emit_copy_reloc): Refactor.
(Copy_relocs::make_copy_reloc): New function.
(Copy_relocs::add_copy_reloc): Remove.
* copy-relocs.h (Copy_relocs::emit_copy_reloc): Move to public
section.
(Copy_relocs::make_copy_reloc): New function.
(Copy_relocs::add_copy_reloc): Remove.
* gold.cc (queue_middle_tasks): Emit old COPY relocations from
unchanged input files.
* incremental-dump.cc (dump_incremental_inputs): Print "COPY" flag.
* incremental.cc (Sized_incremental_binary::do_reserve_layout):
Reserve BSS space for COPY relocations.
(Sized_incremental_binary::do_emit_copy_relocs): New function.
(Output_section_incremental_inputs::write_info_blocks): Record
whether a symbol is copied from a shared object.
(Sized_incr_dynobj::do_add_symbols): Record COPY relocations.
* incremental.h (enum Incremental_shlib_symbol_flags): New type.
(INCREMENTAL_SHLIB_SYM_FLAGS_SHIFT): New constant.
(Incremental_input_entry_reader::get_output_symbol_index): Add
is_copy parameter.
(Incremental_binary::emit_copy_relocs): New function.
(Incremental_binary::do_emit_copy_relocs): New function.
(Sized_incremental_binary::Sized_incremental_binary): Initialize
new data member.
(Sized_incremental_binary::add_copy_reloc): New function.
(Sized_incremental_binary::do_emit_copy_relocs): New function.
(Sized_incremental_binary::Copy_reloc): New struct.
(Sized_incremental_binary::Copy_relocs): New typedef.
(Sized_incremental_binary::copy_relocs_): New data member.
* symtab.cc (Symbol_table::add_from_incrobj): Change return type.
* symtab.h (Symbol_table::add_from_incrobj): Change return type.
* target.h (Sized_target::emit_copy_reloc): New function.
* x86_64.cc (Target_x86_64::emit_copy_reloc): New function.
* gold/archive.cc (Archive::Archive): Initialize new data member.
(Archive::include_all_members): Return if archive has already been
included.
* gold/archive.h (Archive::include_all_members_): New data member.
* incremental.cc (Incremental_inputs::report_input_section): Fix
comment, indentation.
(Incremental_inputs::report_comdat_group): New function.
(Output_section_incremental_inputs::set_final_data_size): Adjust size
of data for incremental input file entry.
(Output_section_incremental_inputs::write_info_blocks): Write COMDAT
group count, COMDAT group signatures.
(Sized_incr_relobj::do_layout): Record kept COMDAT group info from
an unchanged input file.
* incremental.h (Incremental_object_entry::Incremental_object_entry):
Initialize new data member.
(Incremental_object_entry::add_comdat_group): New function.
(Incremental_object_entry::get_comdat_group_count): New function.
(Incremental_object_entry::get_comdat_signature_key): New function.
(Incremental_object_entry::groups_): New data member.
(Incremental_inputs::report_comdat_group): New function.
(Incremental_input_entry_reader::get_symbol_offset): Adjust size of
data for incremental input file entry.
(Incremental_input_entry_reader::get_comdat_group_count): New function.
(Incremental_input_entry_reader::get_input_section): Adjust size of
data for incremental input file entry.
(Incremental_input_entry_reader::get_global_symbol_reader): Likewise.
(Incremental_input_entry_reader::get_comdat_group_signature): New
function.
* object.cc (Sized_relobj::include_section_group): Report kept
COMDAT groups for incremental links.
incremental_test_4.
* testsuite/Makefile.in: Regenerate.
* testsuite/two_file_test_1_v1.cc: New test source file.
* testsuite/two_file_test_1b_v1.cc: New test source file.
* testsuite/two_file_test_2_v1.cc: New test source file.
* incremental-dump.cc (dump_incremental_inputs): Print as_needed
flag and soname for shared objects.
* incremental.cc (Incremental_inputs::report_object): Make
either Incremental_object_entry or Incremental_dynobj_entry; add
soname to string table.
(Incremental_inputs::report_input_section): Add assertion.
(Output_section_incremental_inputs::set_final_data_size): Adjust
type of input file entry for shared libraries; adjust size of
shared library info entry.
(Output_section_incremental_inputs::write_input_files): Write
as_needed flag for shared libraries.
(Output_section_incremental_inputs::write_info_blocks): Adjust type
of input file entry for shared libraries; write soname.
(Sized_incr_dynobj::Sized_incr_dynobj): Read as_needed flag and
soname from incremental info.
* incremental.h (enum Incremental_input_flags): Add
INCREMENTAL_INPUT_AS_NEEDED.
(Incremental_input_entry::Incremental_input_entry): Initialize new
data member.
(Incremental_input_entry::set_as_needed): New function.
(Incremental_input_entry::as_needed): New function.
(Incremental_input_entry::do_dynobj_entry): New function.
(Incremental_input_entry::as_needed_): New data member.
(Incremental_object_entry::Incremental_object_entry): Don't check
for shared library.
(Incremental_object_entry::do_type): Likewise.
(class Incremental_dynobj_entry): New class.
(Incremental_input_entry_reader::as_needed): New function.
(Incremental_input_entry_reader::get_soname): New function.
(Incremental_input_entry_reader::get_global_symbol_count): Rewrite.
(Incremental_input_entry_reader::get_output_symbol_index): Adjust
size of shared library info entry.
* layout.cc (Layout::finish_dynamic_section): Don't test for
incremental link when adding DT_NEEDED entries.
* object.h (Object::Object): Initialize new data member.
(Object::dynobj): New function.
(Object::set_as_needed): New function.
(Object::as_needed): New function.
(Object::do_dynobj): New function.
(Object::as_needed_): New data member.
info; adjust display of GOT entries.
* incremental.cc (Sized_incremental_binary::setup_readers): Allocate
vector of input objects; remove file_status_.
(Sized_incremental_binary::do_reserve_layout): Remove file_status_.
(Sized_incremental_binary::do_process_got_plt): Adjust calls to
got_plt reader; call target hooks to reserve GOT entries.
(Output_section_incremental_inputs::set_final_data_size): Adjust size
of input file info header and GOT info entry.
(Output_section_incremental_inputs::write_info_blocks): Write dynamic
relocation info.
(Got_plt_view_info::got_descriptor): Remove.
(Got_plt_view_info::sym_index): New data member.
(Got_plt_view_info::input_index): New data member.
(Local_got_offset_visitor::visit): Write input file index.
(Global_got_offset_visitor::visit): Write 0 for input file index.
(Global_symbol_visitor_got_plt::operator()): Replace got_descriptor
with sym_index and input_index.
(Output_section_incremental_inputs::write_got_plt): Adjust size of
incremental info GOT entry; replace got_descriptor with input_index.
(Sized_relobj_incr::Sized_relobj_incr): Adjust initializers; record
map from input file index to object.
(Sized_relobj_incr::do_layout): Replace direct data member reference
with accessor function.
(Sized_relobj_incr::do_for_all_local_got_entries): Move to base class.
* incremental.h (Incremental_input_entry_reader::get_symbol_offset):
Adjust size of input file info header.
(Incremental_input_entry_reader::get_first_dyn_reloc): New function.
(Incremental_input_entry_reader::get_dyn_reloc_count): New function.
(Incremental_input_entry_reader::get_input_section): Adjust size of
input file info header.
(Incremental_got_plt_reader::Incremental_got_plt_reader): Adjust size
of incremental info GOT entry.
(Incremental_got_plt_reader::get_got_desc): Remove.
(Incremental_got_plt_reader::get_got_symndx): New function.
(Incremental_got_plt_reader::get_got_input_index): New function.
(Sized_incremental_binary::Sized_incremental_binary): Remove
file_status_; add input_objects_.
(Sized_incremental_binary::~Sized_incremental_binary): Remove.
(Sized_incremental_binary::set_file_is_unchanged): Remove.
(Sized_incremental_binary::file_is_unchanged): Remove.
(Sized_incremental_binary::set_input_object): New function.
(Sized_incremental_binary::input_object): New function.
(Sized_incremental_binary::file_status_): Remove.
(Sized_incremental_binary::input_objects_): New data member.
(Sized_relobj_incr): Rename Sized_incr_relobj to this; adjust all
references.
(Sized_relobj_incr::invalid_address): Move to base class.
(Sized_relobj_incr::is_output_section_offset_invalid): Move to base
class.
(Sized_relobj_incr::do_output_section_offset): Likewise.
(Sized_relobj_incr::do_for_all_local_got_entries): Likewise.
(Sized_relobj_incr::section_offsets_): Likewise.
* object.cc (Sized_relobj::do_for_all_local_got_entries): New
function.
(Sized_relobj_file::Sized_relobj_file): Remove local_got_offsets_.
(Sized_relobj_file::layout_section): Replace refs to section_offsets_
with accessor function.
(Sized_relobj_file::do_layout): Likewise.
(Sized_relobj_file::do_layout_deferred_sections): Likewise.
(Sized_relobj_file::do_for_all_local_got_entries): Move to base class.
(Sized_relobj_file::compute_final_local_value): Replace refs to
section_offsets_ with accessor function.
(Sized_relobj_file::do_finalize_local_symbols): Likewise.
* object.h (Relobj::Relobj): Initialize new data members.
(Relobj::add_dyn_reloc): New function.
(Relobj::first_dyn_reloc): New function.
(Relobj::dyn_reloc_count): New function.
(Relobj::first_dyn_reloc_): New data member.
(Relobj::dyn_reloc_count_): New data member.
(Sized_relobj): Rename Sized_relobj_base to this; adjust all
references.
(Sized_relobj::Address): New typedef.
(Sized_relobj::invalid_address): Move here from child class.
(Sized_relobj::Sized_relobj): Initialize new data members.
(Sized_relobj::sized_relobj): New function.
(Sized_relobj::is_output_section_offset_invalid): Move here from
child class.
(Sized_relobj::get_output_section_offset): Likewise.
(Sized_relobj::local_has_got_offset): Likewise.
(Sized_relobj::local_got_offset): Likewise.
(Sized_relobj::set_local_got_offset): Likewise.
(Sized_relobj::do_for_all_local_got_entries): Likewise.
(Sized_relobj::clear_got_offsets): New function.
(Sized_relobj::section_offsets): Move here from child class.
(Sized_relobj::do_output_section_offset): Likewise.
(Sized_relobj::do_set_section_offset): Likewise.
(Sized_relobj::Local_got_offsets): Likewise.
(Sized_relobj::local_got_offsets_): Likewise.
(Sized_relobj::section_offsets_): Likewise.
(Sized_relobj_file): Rename Sized_relobj to this; adjust all
references.
(Sized_relobj_file::is_output_section_offset_invalid): Move to base
class.
(Sized_relobj_file::sized_relobj): New function
(Sized_relobj_file::local_has_got_offset): Move to base class.
(Sized_relobj_file::local_got_offset): Likewise.
(Sized_relobj_file::set_local_got_offset): Likewise.
(Sized_relobj_file::get_output_section_offset): Likewise.
(Sized_relobj_file::do_for_all_local_got_entries): Likewise.
(Sized_relobj_file::do_output_section_offset): Likewise.
(Sized_relobj_file::do_set_section_offset): Likewise.
(Sized_relobj_file::Local_got_offsets): Likewise.
(Sized_relobj_file::local_got_offsets_): Likewise.
(Sized_relobj_file::section_offsets_): Likewise.
* output.cc (Output_reloc::Output_reloc): Adjust type of relobj
(all constructors).
(set_needs_dynsym_index): Convert relobj to derived class pointer.
(Output_reloc::get_symbol_index): Likewise.
(Output_reloc::local_section_offset): Likewise.
(Output_reloc::get_address): Likewise.
(Output_reloc::symbol_value): Likewise.
(Output_data_got::reserve_slot): Move to class definition.
(Output_data_got::reserve_local): New function.
(Output_data_got::reserve_slot_for_global): Remove.
(Output_data_got::reserve_global): New function.
* output.h (Output_reloc::Output_reloc): Adjust type of relobj
(all constructors, two instantiations).
(Output_reloc::get_relobj): New function (two instantiations).
(Output_reloc::u1_.relobj, Output_reloc::u2_.relobj): Adjust type.
(Output_data_reloc_base::add): Convert relobj to derived class pointer.
(Output_data_reloc::add_global): Adjust type of relobj.
(Output_data_reloc::add_global_relative): Likewise.
(Output_data_reloc::add_symbolless_global_addend): Likewise.
(Output_data_reloc::add_local): Likewise.
(Output_data_reloc::add_local_relative): Likewise.
(Output_data_reloc::add_symbolless_local_addend): Likewise.
(Output_data_reloc::add_local_section): Likewise.
(Output_data_reloc::add_output_section): Likewise.
(Output_data_reloc::add_absolute): Likewise.
(Output_data_reloc::add_target_specific): Likewise.
(Output_data_got::reserve_slot): Move definition here.
(Output_data_got::reserve_local): New function.
(Output_data_got::reserve_global): New function.
* reloc.cc (Sized_relobj_file::do_read_relocs): Replace refs to
section_offsets_ with accessor function.
(Sized_relobj_file::write_sections): Likewise.
(Sized_relobj_file::do_relocate_sections): Likewise.
* target.h (Sized_target::reserve_local_got_entry): New function.
(Sized_target::reserve_global_got_entry): New function.
* x86_64.cc (Target_x86_64::reserve_local_got_entry): New function.
(Target_x86_64::reserve_global_got_entry): New function.
(Target_x86_64::init_got_plt_for_update): Create rela_dyn section.
* incremental-dump.cc (dump_incremental_inputs): Mask high-order
bit when checking got_type.
* incremental.cc (Sized_incremental_binary::setup_readers):
Store symbol table and string table locations; initialize bit vector
of file status flags.
(Sized_incremental_binary::do_reserve_layout): Set bit flag for
unchanged files.
(Sized_incremental_binary::do_process_got_plt): New function.
(Sized_incremental_binary::get_symtab_view): Use stored locations.
(Output_section_incremental_inputs::set_final_data_size): Record
file index for each input file.
(Output_section_incremental_inputs::write_got_plt): Store file index
instead of input entry offset for each GOT entry.
* incremental.h
(Incremental_input_entry::Incremental_input_entry): Initialize new
data member.
(Incremental_input_entry::set_offset): Store file index.
(Incremental_input_entry::get_file_index): New function.
(Incremental_input_entry::file_index_): New data member.
(Incremental_binary::process_got_plt): New function.
(Incremental_binary::do_process_got_plt): New function.
(Sized_incremental_binary::Sized_incremental_binary): Initialize new
data members.
(Sized_incremental_binary::~Sized_incremental_binary): New destructor.
(Sized_incremental_binary::set_file_is_unchanged): New function.
(Sized_incremental_binary::file_is_unchanged): New function.
(Sized_incremental_binary::do_process_got_plt): New function.
(Sized_incremental_binary::file_status_): New data member.
(Sized_incremental_binary::main_symtab_loc_): New data member.
(Sized_incremental_binary::main_strtab_loc_): New data member.
* output.cc (Output_data_got::Got_entry::write): Add case
RESERVED_CODE.
(Output_data_got::add_global): Call add_got_entry.
(Output_data_got::add_global_plt): Likewise.
(Output_data_got::add_global_with_rel): Likewise.
(Output_data_got::add_global_with_rela): Likewise.
(Output_data_got::add_global_pair_with_rel): Call add_got_entry_pair.
(Output_data_got::add_global_pair_with_rela): Likewise.
(Output_data_got::add_local): Call add_got_entry.
(Output_data_got::add_local_plt): Likewise.
(Output_data_got::add_local_with_rel): Likewise.
(Output_data_got::add_local_with_rela): Likewise.
(Output_data_got::add_local_pair_with_rel): Call add_got_entry_pair.
(Output_data_got::add_local_pair_with_rela): Likewise.
(Output_data_got::reserve_slot): New function.
(Output_data_got::reserve_slot_for_global): New function.
(Output_data_got::add_got_entry): New function.
(Output_data_got::add_got_entry_pair): New function.
(Output_section::add_output_section_data): Edit FIXME.
* output.h
(Output_section_data_build::Output_section_data_build): New
constructor with size parameter.
(Output_data_space::Output_data_space): Likewise.
(Output_data_got::Output_data_got): Initialize new data member; new
constructor with size parameter.
(Output_data_got::add_constant): Call add_got_entry.
(Output_data_got::reserve_slot): New function.
(Output_data_got::reserve_slot_for_global): New function.
(class Output_data_got::Got_entry): Add RESERVED_CODE.
(Output_data_got::add_got_entry): New function.
(Output_data_got::add_got_entry_pair): New function.
(Output_data_got::free_list_): New data member.
* target.h (Sized_target::init_got_plt_for_update): New function.
(Sized_target::register_global_plt_entry): New function.
* x86_64.cc (Output_data_plt_x86_64::Output_data_plt_x86_64):
Initialize new data member; call init; add constructor with PLT count.
(Output_data_plt_x86_64::init): New function.
(Output_data_plt_x86_64::add_relocation): New function.
(Output_data_plt_x86_64::reserve_slot): New function.
(Output_data_plt_x86_64::free_list_): New data member.
(Target_x86_64::init_got_plt_for_update): New function.
(Target_x86_64::register_global_plt_entry): New function.
(Output_data_plt_x86_64::add_entry): Allocate from free list for
incremental updates.
(Output_data_plt_x86_64::add_relocation): New function.
* testsuite/object_unittest.cc (Object_test): Set default options.
Ian Lance Taylor
Doug Kwan
Cary Coutant
Alan Modra
Nick Clifton