(Output_file::map): Use map_anonymous. If the regular mmap fails,
try an anonymous one. Report the size if the mmap fails.
* output.h (class Output_file): Declare map_anonymous.
* freebsd.h: New file.
* i386.cc: Include "freebsd.h".
(Target_i386): Derive from Target_freebsd rather than
Sized_target.
(Target_selector_i386): Derive from Target_selector_freebsd rather
than Target_selector.
* x86_64.cc: Include "freebsd.h".
(Target_x86_64): Derive from Target_freebsd rather than
Sized_target.
(Target_selector_x86_64): Derive from Target_selector_freebsd
rather than Target_selector.
* target.h (class Target): Add adjust_elf_header and
do_adjust_elf_header.
* output.cc (Output_file_header:: do_sized_write): Call target
adjust_elf_header routine.
* configure.tgt: Set targ_osabi.
* configure.ac: Define GOLD_DEFAULT_OSABI.
* parameters.cc (Parameters::default_target): Pass
GOLD_DEFAULT_OSABI to select_target.
* target-select.h (class Target_selector): Make instantiate_target
protected rather than private.
* Makefile.am (HFILES): Add freebsd.h.
* configure, Makefile.in, config.in: Rebuild.
ftruncate.
* ftruncate.c: New file, from gnulib.
* output.cc (posix_fallocate): Define dummy version if not
HAVE_POSIX_FALLOCATE.
(Output_file::map): Call posix_fallocate rather than lseek and
write.
* gold.h (ftruncate): Declare if not HAVE_FTRUNCATE.
* configure, Makefile.in, config.in: Rebuild.
* output.cc (Output_section::find_starting_output_address): Rename
from starting_output_address; add PADDR parameter; change return
type.
* output.h (class Output_section): Declare
find_starting_output_address instead of starting_output_address.
* object.cc (Sized_relobj::do_finalize_local_symbols): Handle a
section symbol for which we can't find a merge section.
* object.cc (Sized_relobj::do_layout): Use constant invalid_address
instead of -1U.
(Sized_relobj::do_finalize_local_symbols): Likewise.
(Sized_relobj::map_to_kept_section): Likewise.
* object.h (Sized_relobj::invalid_address): New constant.
(Sized_relobj::do_output_section_offset): Check for invalid_address
and return -1ULL.
* output.cc (Output_reloc::local_section_offset): Use constant
invalid_address instead of -1U.
(Output_reloc::get_address): Likewise.
(Output_section::output_address): Change -1U to -1ULL.
* output.h (Output_reloc::invalid_address): New constant.
* reloc.cc (Sized_relobj::write_sections): Use constant
invalid_address instead of -1U.
(Sized_relobj::relocate_sections): Likewise.
* symtab.cc (Symbol_table::sized_finalize_symbol): Handle symbol
values for merge sections.
* target-reloc.h (relocate_for_relocatable): Use constant
invalid_address instead of -1U.
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.
* 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.
* 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.
* 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.
(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.
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.
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.
(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.
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.
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.
Chris Demetriou
Ian Lance Taylor
Cary Coutant
Ian Lance Taylor