7d9e3d9854
* 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.
19 years ago
9f1d377b33
* 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.
19 years ago
8825ac63ef
* object.cc (Sized_relobj::include_section_group): Adjust section
indexes read from group data. Build vector to pass to
layout_group.
* layout.cc (Layout::layout_group): Add flags and shndxes
parameters. Remove contents parameter. Change caller. Update
explicit instantiations.
* layout.h (class Layout): Update layout_group declaration.
* output.cc (Output_data_group::Output_data_group): Add flags and
input_shndxes parameters. Remove contents parameter. Change
caller.
(Output_data_group::do_write): Change input_sections_ to
input_shndxes_.
* output.h (class Output_data_group): Update constructor
declaration. Rename input_sections_ to input_shndxes_.
* testsuite/many_sections_test.cc: Add template.
19 years ago
e94cf12773
* layout.cc (Layout::include_section): Refactored check for debug
info section.
(Layout::add_comdat): Add new parameters. Change type
of signature parameter. Add object and shndx to signatures table.
(Layout::find_kept_object): New function.
* layout.h: Include <cstring>.
(Layout::is_debug_info_section): New function.
(Layout::add_comdat): Add new parameters.
(Layout::find_kept_object): New function.
(Layout::Kept_section): New struct.
(Layout::Signatures): Change type of map range.
* object.cc (Relobj::output_section_address): New function.
(Sized_relobj::include_section_group): Add new parameters. Change
calls to Layout::add_comdat. Change to build table of kept comdat
groups and table mapping discarded sections to kept sections.
(Sized_relobj::include_linkonce_section): Likewise. Add new parameter.
(Sized_relobj::do_layout): Change calls to include_section_group and
include_linkonce_section.
(Sized_relobj::do_finalize_local_symbols): Do not set local symbol
value to zero when section is discarded.
(Sized_relobj::map_to_kept_section): New function.
* object.h (Relobj::output_section_address): New function.
(Relobj::Comdat_group): New type.
(Relobj::find_comdat_group): New function.
(Relobj::Comdat_group_table): New type.
(Relobj::Kept_comdat_section): New type.
(Relobj::Kept_comdat_section_table): New type.
(Relobj::add_comdat_group): New function.
(Relobj::set_kept_comdat_section): New function.
(Relobj::get_kept_comdat_section): New function.
(Relobj::comdat_groups_): New field.
(Relobj::kept_comdat_sections_): New field.
(Symbol_value::input_value): Update comment.
(Sized_relobj::map_to_kept_section) New function.
(Sized_relobj::include_linkonce_section): Add new parameter.
* target-reloc.h (Comdat_behavior): New type.
(get_comdat_behavior): New function.
(relocate_section): Add code to map a discarded section to the
corresponding kept section when applying a relocation.
19 years ago
d491d34e93
* object.cc (Xindex::initialize_symtab_xindex): New function.
(Xindex::read_symtab_xindex): New function.
(Xindex::sym_xindex_to_shndx): New function.
(Sized_relobj::find_symtab): Pick up SHT_SYMTAB_SHNDX section if
available.
(Sized_relobj::do_initialize_xindex): New function.
(Sized_relobj::do_read_symbols): Adjust section links.
(Sized_relobj::symbol_section_and_value): Add is_ordinary
parameter. Change all callers.
(Sized_relobj::include_section_group): Adjust section links and
symbol section indexes.
(Sized_relobj::do_layout): Adjust section links.
(Sized_relobj::do_count_local_symbols): Adjust section links and
symbol section indexes.
(Sized_relobj::do_finalize_local_symbols): Distinguish between
ordinary and special symbols.
(Sized_relobj::write_local_symbols): Add symtab_xindex and
dynsym_xindex parameters. Change all callers. Adjust section
links. Use SHN_XINDEX when needed.
(Sized_relobj::get_symbol_location_info): Adjust section links.
Don't get fooled by special symbols.
* object.h (class Xindex): Define.
(class Object): Add xindex_ parameter. Declare virtual functoin
do_initialize_xindex.
(Object::adjust_sym_shndx): New function.
(Object::set_xindex): New protected function.
(class Symbol_value): Add is_ordinary_shndx_ field.
(Symbol_value::Symbol_value): Initialize is_ordinary_shndx_.
(Symbol_value::value): Assert ordinary section.
(Symbol_value::initialize_input_to_output_map): Likewise.
(Symbol_value::set_input_shndx): Add is_ordinary parameter.
Change all callers.
(Symbol_value::input_shndx): Add is_ordinary parameter. Change
all callers.
(class Sized_relobj): Update declarations.
(Sized_relobj::local_symbol_input_shndx): Add is_ordinary
parameter. Change all callers.
(Sized_relobj::adjust_shndx): New function.
* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize dynsym_shndx_
field.
(Sized_dynobj::find_dynsym_sections): Remove pdynsym_shndx
parameter. Change all callers. Pick up SHT_DYNSYM_SHNDX section
for SHT_DYNSYM section if available. Set dynsym_shndx_ field.
(Sized_dynobj::read_dynsym_section): Adjust section links.
(Sized_dynobj::read_dynamic): Likewise.
(Sized_dynobj::do_read_symbols): Use dynsym_shndx_ field. Adjust
section links.
(Sized_dynobj::do_initialize_xindex): New function.
* dynobj.h (class Sized_dynobj): Add dynsym_shndx_ field. Declare
do_initialize_xindex.
(Sized_dynobj::adjust_shndx): New function.
* layout.cc (Layout::Layout): Initialize symtab_xindex_ and
dynsym_xindex_ fields.
(Layout::finalize): Add a call to set_section_indexes before
creating the symtab sections.
(Layout::set_section_indexes): Don't do anything if the section
already has a section index.
(Layout::create_symtab_sections): Add shnum parameter. Change
caller. Create .symtab_shndx section if needed.
(Layout::create_shdrs): Add shstrtab_section parameter. Change
caller.
(Layout::allocated_output_section_count): New function.
(Layout::create_dynamic_symtab): Create .dynsym_shndx section if
needed.
* layout.h (class Layout): Add symtab_xindex_ and dynsym_xindex_
fields. Update declarations.
(Layout::symtab_xindex): New function.
(Layout::dynsym_xindex): New function.
(class Write_symbols_task): Add layout_ field.
(Write_symbols_task::Write_symbols_task): Add layout parameter.
Change caller.
* output.cc (Output_section_headers::Output_section_headers): Add
shstrtab_section parameter. Change all callers.
(Output_section_headers::do_sized_write): Store overflow values
for section count and section string table section index in
section header zero.
(Output_file_header::do_sized_write): Check for overflow of
section count and section string table section index.
(Output_symtab_xindex::do_write): New function.
(Output_symtab_xindex::endian_do_write): New function.
* output.h (class Output_section_headers): Add shstrtab_section_.
Update declarations.
(class Output_symtab_xindex): Define.
(Output_section::has_out_shndx): New function.
* symtab.cc (Symbol::init_fields): Initialize is_ordinary_shndx_
field.
(Symbol::init_base): Add st_shndx and is_ordinary parameters.
Change all callers.
(Sized_symbol::init): Likewise.
(Symbol::output_section): Check for ordinary symbol.
(Symbol_table::add_from_object): Remove orig_sym parameter. Add
st_shndx, is_ordinary, and orig_st_shndx parameters. Change all
callers.
(Symbol_table::add_from_relobj): Add symndx_offset parameter.
Change all callers. Simplify handling of symbols from sections
not included in the link.
(Symbol_table::add_from_dynobj): Handle ordinary symbol
distinction.
(Weak_alias_sorter::operator()): Assert that symbols are
ordinary.
(Symbol_table::sized_finalize_symbol): Handle ordinary symbol
distinction.
(Symbol_table::write_globals): Add symtab_xindex and dynsym_xindex
parameters. Change all callers.
(Symbol_table::sized_write_globals): Likewise. Handle ordinary
symbol distinction. Use SHN_XINDEX when needed.
(Symbol_table::write_section_symbol): Add symtab_xindex
parameter. Change all callers.
(Symbol_table::sized_write_section_symbol): Likewise. Use
SHN_XINDEX when needed.
* symtab.h (class Symbol): Add is_ordinary_shndx_ field. Update
declarations.
(Symbol::shndx): Add is_ordinary parameter. Change all callers.
(Symbol::is_defined): Check is_ordinary.
(Symbol::is_undefined, Symbol::is_weak_undefined): Likewise.
(Symbol::is_absolute, Symbol::is_common): Likewise.
(class Sized_symbol): Update declarations.
(class Symbol_table): Update declarations.
* resolve.cc (Symbol::override_base): Add st_shndx and is_ordinary
parameters. Change all callers.
(Sized_symbol::override): Likewise.
(Symbol_table::override): Likewise.
(symbol_to_bits): Add is_ordinary parameter. Change all callers.
(Symbol_table::resolve): Remove orig_sym parameter. Add st_shndx,
is_ordinary, and orig_st_shndx parameters. Change all callers.
* copy-relocs.cc (Copy_relocs::emit_copy_reloc): Require symbol
to be in an ordinary section.
* dwarf_reader.cc (Sized_dwarf_line_info::symbol_section): Add
object and is_ordinary parameters. Change all callers.
(Sized_dwarf_line_info::read_relocs): Add object parameter.
Change all callers. Don't add undefined or non-ordinary symbols
to reloc_map_.
(Sized_dwarf_line_info::read_line_mappings): Add object parameter.
Change all callers.
* dwarf_reader.h (class Sized_dwarf_line_info): Update
declarations.
* ehframe.cc (Eh_frame::read_fde): Check for ordinary symbol.
* reloc.cc (Sized_relobj::do_read_relocs): Adjust section links.
(Sized_relobj::relocate_sections): Likewise.
* target-reloc.h (scan_relocs): Adjust section symbol index.
(scan_relocatable_relocs): Likewise.
* i386.cc (Scan::local): Check for ordinary symbols.
* sparc.cc (Scan::local): Likewise.
* x86_64.cc (Scan::local): Likewise.
* testsuite/binary_unittest.cc (Sized_binary_test): Update calls
to symbol_section_and_value.
* testsuite/many_sections_test.cc: New file.
* testsuite/Makefile.am (BUILT_SOURCES): Define.
(check_PROGRAMS): Add many_sections_test.
(many_sections_test_SOURCES): Define.
(many_sections_test_DEPENDENCIES): Define.
(many_sections_test_LDFLAGS): Define.
(BUILT_SOURCES): Add many_sections_define.h.
(many_sections_define.h): New target.
(BUILT_SOURCES): Add many_sections_check.h.
(many_sections_check.h): New target.
(check_PROGRAMS): Add many_sections_r_test.
(many_sections_r_test_SOURCES): Define.
(many_sections_r_test_DEPENDENCIES): Define.
(many_sections_r_test_LDFLAGS): Define.
(many_sections_r_test_LDADD): Define.
(many_sections_r_test.o): New target.
* testsuite/Makefile.in: Rebuild.
19 years ago
154e0e9aa7
* layout.cc (Layout::Layout): Initialize sections_are_attached_.
(Layout::get_output_section): Ignore SHF_WRITE and SHF_EXECINSTR
in the name/type/flags to section mapping. Don't call
allocate_output_section.
(Layout::choose_output_section): Change parameter from adjust_name
to is_input_section. Don't permit input sections after sections
are attached to segments. Don't call allocate_output_section.
(Layout::layout_eh_frame): Call update_flags_for_input_section,
not write_enable_output_section.
(Layout::make_output_section): Don't push to
unattached_section_list_ nor call attach_to_segment. Call
attach_section_to_segment if sections are attached.
(Layout::attach_sections_to_segments): New function.
(Layout::attach_section_to_segment): New function.
(Layout::attach_allocated_section_to_segment): Rename from
attach_to_segment. Remove flags parameter.
(Layout::allocate_output_section): Remove function.
(Layout::write_enable_output_section): Remove function.
* layout.h (class Layout): Update for above changes. Add new
field sections_are_attached_.
* output.h (Output_section::update_flags_for_input_section): New
function.
* output.cc (Output_section::add_input_section): Call
update_flags_for_input_section.
* gold.cc (queue_middle_tasks): Call attach_sections_to_segments.
19 years ago
2c38906f72
* layout.h (class Layout): Add added_eh_frame_data_ field.
* layout.cc (Layout::Layout): Initialize new field.
(Layout::layout_eh_frame): Don't add eh_frame_data_ to .eh_frame
output section until we find a section we merged successfully.
* object.cc (Sized_relobj::check_eh_frame_flags): Don't require
that the size be non-zero.
19 years ago
8ed814a99c
* options.h (class General_options): Define build_id option.
* layout.h (class Layout): Declare write_build_id, create_note,
create_build_id. Add build_id_note_ member.
* layout.cc: Include <cerrno>, <fcntl.h>, <unistd.h>,
"libiberty.h", "md5.h", "sha1.h".
(Layout::Layout): Initialize eh_frame_data_,
eh_frame_hdr_section_, and build_id_note_.
(Layout::finalize): Call create_build_id.
(Layout::create_note): New function, broken out of
Layout::create_gold_note.
(Layout::create_gold_note): Call create_note.
(Layout::create_build_id): New function.
(Layout::write_build_id): New function.
(Close_task_runner::run): Call write_build_id.
19 years ago
1650c4ff50
Combine read-only .eh_frame sections with read-write .eh_frame
sections.
19 years ago
4e2b16973e
If we a section with no flags followed by a section with the same name
with flags, put them in the same output section.
19 years ago
7d1a9ebbf2
Remove gcc 3.2 compatibility hacks.
19 years ago
919ed24cbc
Don't check assertions until symbols are finalized. Create an output
section if the script uses a data statement with no input sections.
Don't create a loadable segment for the headers if there is no room.
19 years ago
8851eccaec
From Craig Silverstein: Have Parameters point to General_options.
19 years ago
516cb3d01e
Support --oformat binary.
19 years ago
755ab8af10
Fix group signature handling for relocatable link, add bootstrap
relocatable test.
19 years ago
6a74a71947
Initial -r support.
19 years ago
3802b2dd6b
Implement SIZEOF_HEADERS, section constraints, other minor linker
script items.
19 years ago
a445fddf82
Fully implement the SECTIONS clause.
19 years ago
9b07f471e3
Don't pass around the target in order to define symbols; get it from
the parameters instead.
19 years ago
e5756efb6d
Support assignments and expressions in linker scripts.
19 years ago
d391083d3c
Add support for -e and for ENTRY in linker scripts.
19 years ago
cb29561284
Reduce the number of system calls. Use readv instead of pread. Do
better handling of cached views.
19 years ago
17a1d0a9b2
Rewrite workqueue. This version eliminates the master thread, and
reduces the amount of locking required to find a new thread to run.
19 years ago
535890bb64
From Cary Coutant: Set DF_STATIC_TLS as appropriate.
19 years ago
7bf1f8020f
From Cary Coutant: More support for generating shared libraries.
19 years ago
ad8f37d1ba
Stringpool stats. Also make Symbol_table support functions inline.
19 years ago
96803768f1
Compress all debug sections.
19 years ago
9a0910c33e
From Craig Silverstein: Add support for compressing .debug_str section.
19 years ago
27bc2bce09
Clean up setting address and section offset.
19 years ago
c79126688f
Add threading support.
19 years ago
4f4c5f80c7
From Cary Coutant: Count textrel with output sections rather than
setting a flag as we add each reloc in the target code.
19 years ago
07f397aba3
From Cary Coutant: Improve i386 shared library TLS support.
19 years ago
9a2d698415
Add heuristics for undefined symbol warnings.
19 years ago
730cdc88f7
Generate a complete exception frame header. Discard duplicate
exception frame information.
19 years ago
868870607e
From Craig Silverstein and Cary Coutant: fix assignment of section
indexes to sections which are not associated with segments.
19 years ago
dba5a01fdc
From Cary Coutant: Set offsets of sections with data before finalizing
local symbols.
19 years ago
35cdfc9a87
Add support for PT_GNU_STACK.
19 years ago
46fe162319
Fix versions of copied symbols.
19 years ago
e44fcf3bcf
Add --stats option to print runtime and memory usage statistics.
19 years ago
4f211c8bff
Create a note section with the version of gold.
19 years ago
9025d29d14
Put size and endianness in parameters.
19 years ago
3151305a47
Add basic exception frame header, plus test.
19 years ago
6cb15b7f89
Add licensing text to every source file.
19 years ago
bfd58944a6
Define __start and __stop symbols.
19 years ago
91da9340cc
gcc 3.2.2 and 4.1.0 portability hacks.
20 years ago
14b3174058
Generate version information.
20 years ago
16649710df
Can now dynamically link hello, world.
20 years ago
a3ad94edd4
Hash tables, dynamic section, i386 PLT, gold_assert.
20 years ago
dbe717effb
More dynamic object support, initial scripting support.
20 years ago
f0641a0b38
Rework stringpool and hash tables so that we always generate the same
output regardless of randomize_va_space.
20 years ago
Ian Lance Taylor
Cary Coutant
Ian Lance Taylor