symbol info for each input file.
* incremental.cc
(Output_section_incremental_inputs::set_final_data_size): Add local
symbol info to input file entries in incremental info.
(Output_section_incremental_inputs::write_info_blocks): Likewise.
(Sized_incr_relobj::Sized_incr_relobj): Initialize new data members.
(Sized_incr_relobj::do_add_symbols): Cosmetic change.
(Sized_incr_relobj::do_count_local_symbols): Replace stub with
implementation.
(Sized_incr_relobj::do_finalize_local_symbols): Likewise.
(Sized_incr_relobj::do_relocate): Write the local symbols.
(Sized_incr_dynobj::do_add_symbols): Cosmetic change.
* incremental.h (Incremental_inputs_reader::get_symbol_offset):
Adjust size of input file header.
(Incremental_inputs_reader::get_local_symbol_offset): New function.
(Incremental_inputs_reader::get_local_symbol_count): New function.
(Incremental_inputs_reader::get_input_section): Adjust size of input
file header.
(Incremental_inputs_reader::get_global_symbol_reader): Likewise.
(Sized_incr_relobj::This): New typedef.
(Sized_incr_relobj::sym_size): New const data member.
(Sized_incr_relobj::Local_symbol): New struct.
(Sized_incr_relobj::do_output_local_symbol_count): New function.
(Sized_incr_relobj::do_local_symbol_offset): New function.
(Sized_incr_relobj::local_symbol_count_): New data member.
(Sized_incr_relobj::output_local_dynsym_count_): New data member.
(Sized_incr_relobj::local_symbol_index_): New data member.
(Sized_incr_relobj::local_symbol_offset_): New data member.
(Sized_incr_relobj::local_dynsym_offset_): New data member.
(Sized_incr_relobj::local_symbols_): New data member.
* object.h (Relobj::output_local_symbol_count): New function.
(Relobj::local_symbol_offset): New function.
(Relobj::do_output_local_symbol_count): New function.
(Relobj::do_local_symbol_offset): New function.
(Sized_relobj::do_output_local_symbol_count): New function.
(Sized_relobj::do_local_symbol_offset): New function.
global symbol map.
(Sized_incremental_binary::do_apply_incremental_relocs): New function.
(Sized_incr_relobj::do_add_symbols): Add symbols to global symbol map.
(Sized_incr_relobj::do_relocate): Remap section indices in incremental
relocations.
(Sized_incr_dynobj::do_add_symbols): Add symbols to global symbol map.
(Sized_incr_dynobj::do_for_all_global_symbols): Remove FIXME.
(Sized_incr_dynobj::do_for_all_local_got_entries): Likewise.
* incremental.h
(Incremental_inputs_reader::global_symbol_reader_at_offset): New
function.
(Incremental_binary::apply_incremental_relocs): New function.
(Incremental_binary::do_apply_incremental_relocs): New function.
(Sized_incremental_binary::Sized_incremental_binary): Initialize new
data member.
(Sized_incremental_binary::add_global_symbol): New function.
(Sized_incremental_binary::global_symbol): New function.
(Sized_incremental_binary::do_apply_incremental_relocs): New function.
(Sized_incremental_binary::symbol_map_): New data member.
* layout.cc (Layout_task_runner::run): Apply incremental relocations.
* target.h (Sized_target::apply_relocation): New function.
* target-reloc.h (apply_relocation): New function.
* x86_64.cc (Target_x86_64::apply_relocation): New function.
* arm.cc (Arm_output_section::Arm_output_section): Set SHF_LINK_ORDER
flag of a SHT_ARM_EXIDX section.
* testsuite/Makefile.am (arm_exidx_test): New test rules.
* testsuite/Makefile.in: Regenerate.
* testsuite/arm_exidx_test.s: New file.
* testsuite/arm_exidx_test.sh: Same.
with MREMAP_MAYMOVE.
* output.h (class Output_file): Add map_is_allocated_ field.
* output.cc: Only #include <sys/mman.h> if it exists. If mmap is
not available, provide stubs. If mremap is not available, #define
it to gold_mremap.
(MREMAP_MAYMOVE): Define if not defined.
(Output_file::Output_file): Initialize map_is_allocated_.
(Output_file::resize): Check map_is_allocated_.
(Output_file::map_anonymous): If mmap fails, use malloc.
(Output_file::unmap): Don't do anything for an anonymous map.
* fileread.cc: Only #include <sys/mman.h> if it exists. If mmap
is not available, provide stubs.
(File_read::View::~View): Use free rather than delete[].
(File_read::make_view): Use malloc rather than new[]. If mmap
fails, use malloc.
(File_read::find_or_make_view): Use malloc rather than new[].
* gold.h: Remove HAVE_REMAP code.
* mremap.c: #include <errno.h>. Only #include <sys/mman.h> if it
exists. Rename mremap to gold_mremap. If mmap is not available
don't do anything.
* configure, config.in: Rebuild.
report_object.
(Add_archive_symbols::run): Track argument serial numbers.
(Lib_group::include_member): Likewise.
(Add_lib_group_symbols::run): Adjust call to report_archive_begin.
* archive.h (Incremental_archive_entry::Archive_member):
Initialize arg_serial_.
(Archive_member::arg_serial_): New data member.
* dynobj.cc (Dynobj::Dynobj): Allow input_file_ to be NULL.
(Sized_dynobj::do_add_symbols): Track symbols when doing an
incremental link.
(Sized_dynobj::do_for_all_local_got_entries): New function.
* dynobj.h: (Sized_dynobj::do_for_all_local_got_entries): New
function.
* fileread.cc (get_mtime): New function.
* fileread.h (get_mtime): New function.
* gold.cc (queue_initial_tasks): Check for incremental update.
(process_incremental_input): New function.
(queue_middle_tasks): Don't force valid target for incremental
update.
* incremental-dump.cc (find_input_containing_global): Adjust
size of symbol info entry.
(dump_incremental_inputs): Dump argument serial number and
in_system_directory flag; bias shndx by 1; print symbol names
when dumping per-file symbol lists; use new symbol info readers.
* incremental.cc
(Output_section_incremental_inputs:update_data_size): New function.
(Sized_incremental_binary::setup_readers): Setup input readers
for each input file; build maps for files added from libraries
and scripts.
(Sized_incremental_binary::check_input_args): New function.
(Sized_incremental_binary::do_check_inputs): Build map of argument
serial numbers to input arguments.
(Sized_incremental_binary::do_file_has_changed): Rename
do_file_is_unchanged to this; compare file modification times.
(Sized_incremental_binary::do_init_layout): New function.
(Sized_incremental_binary::do_reserve_layout): New function.
(Sized_incremental_binary::do_get_input_reader): Remove.
(Sized_incremental_binary::get_symtab_view): New function.
(Incremental_checker::can_incrementally_link_output_file): Remove.
(Incremental_inputs::report_command_line): Exclude --debug options.
(Incremental_inputs::report_archive_begin): Add parameter; track
argument serial numbers; don't put input file entry for archive
before archive members.
(Incremental_inputs::report_archive_end): Put input file entry
for archive after archive members.
(Incremental_inputs::report_object): Add parameter; track argument
serial numbers and in_system_directory flag.
(Incremental_inputs::report_script): Add parameter; track argument
serial numbers.
(Output_section_incremental_inputs::set_final_data_size): Adjust
size of symbol info entry; check for forwarding symbols.
(Output_section_incremental_inputs::write_input_files): Write
in_system_directory flag and argument serial number.
(Output_section_incremental_inputs::write_info_blocks): Map section
indices between incremental info and original input file; store
input section index for each symbol.
(class Local_got_offset_visitor): Derive from Got_offset_list::Visitor;
change operator() to visit().
(class Global_got_offset_visitor): Likewise.
(class Global_symbol_visitor_got_plt):
(Output_section_incremental_inputs::write_got_plt): Use new visitor
classes.
(Sized_incr_relobj::Sized_incr_relobj): New constructor.
(Sized_incr_relobj::do_read_symbols): New function.
(Sized_incr_relobj::do_layout): New function.
(Sized_incr_relobj::do_layout_deferred_sections): New function.
(Sized_incr_relobj::do_add_symbols): New function.
(Sized_incr_relobj::do_should_include_member): New function.
(Sized_incr_relobj::do_for_all_global_symbols): New function.
(Sized_incr_relobj::do_for_all_local_got_entries): New function.
(Sized_incr_relobj::do_section_size): New function.
(Sized_incr_relobj::do_section_name): New function.
(Sized_incr_relobj::do_section_contents): New function.
(Sized_incr_relobj::do_section_flags): New function.
(Sized_incr_relobj::do_section_entsize): New function.
(Sized_incr_relobj::do_section_address): New function.
(Sized_incr_relobj::do_section_type): New function.
(Sized_incr_relobj::do_section_link): New function.
(Sized_incr_relobj::do_section_info): New function.
(Sized_incr_relobj::do_section_addralign): New function.
(Sized_incr_relobj::do_initialize_xindex): New function.
(Sized_incr_relobj::do_get_global_symbol_counts): New function.
(Sized_incr_relobj::do_read_relocs): New function.
(Sized_incr_relobj::do_gc_process_relocs): New function.
(Sized_incr_relobj::do_scan_relocs): New function.
(Sized_incr_relobj::do_count_local_symbols): New function.
(Sized_incr_relobj::do_finalize_local_symbols): New function.
(Sized_incr_relobj::do_set_local_dynsym_indexes): New function.
(Sized_incr_relobj::do_set_local_dynsym_offset): New function.
(Sized_incr_relobj::do_relocate): New function.
(Sized_incr_relobj::do_set_section_offset): New function.
(Sized_incr_dynobj::Sized_incr_dynobj): New function.
(Sized_incr_dynobj::do_read_symbols): New function.
(Sized_incr_dynobj::do_layout): New function.
(Sized_incr_dynobj::do_add_symbols): New function.
(Sized_incr_dynobj::do_should_include_member): New function.
(Sized_incr_dynobj::do_for_all_global_symbols): New function.
(Sized_incr_dynobj::do_for_all_local_got_entries): New function.
(Sized_incr_dynobj::do_section_size): New function.
(Sized_incr_dynobj::do_section_name): New function.
(Sized_incr_dynobj::do_section_contents): New function.
(Sized_incr_dynobj::do_section_flags): New function.
(Sized_incr_dynobj::do_section_entsize): New function.
(Sized_incr_dynobj::do_section_address): New function.
(Sized_incr_dynobj::do_section_type): New function.
(Sized_incr_dynobj::do_section_link): New function.
(Sized_incr_dynobj::do_section_info): New function.
(Sized_incr_dynobj::do_section_addralign): New function.
(Sized_incr_dynobj::do_initialize_xindex): New function.
(Sized_incr_dynobj::do_get_global_symbol_counts): New function.
(make_sized_incremental_object): New function.
(Incremental_library::copy_unused_symbols): New function.
(Incremental_library::do_for_all_unused_symbols): New function.
* incremental.h (enum Incremental_input_flags): New type.
(class Incremental_checker): Remove.
(Incremental_input_entry::Incremental_input_entry): Add argument
serial number.
(Incremental_input_entry::arg_serial): New function.
(Incremental_input_entry::set_is_in_system_directory): New function.
(Incremental_input_entry::is_in_system_directory): New function.
(Incremental_input_entry::arg_serial_): New data member.
(Incremental_input_entry::is_in_system_directory_): New data member.
(class Script_info): Move here from script.h.
(Script_info::Script_info): Add filename parameter.
(Script_info::filename): New function.
(Script_info::filename_): New data member.
(Incremental_script_entry::Incremental_script_entry): Add argument
serial number.
(Incremental_object_entry::Incremental_object_entry): Likewise.
(Incremental_object_entry::add_input_section): Build list of input
sections with map to original shndx.
(Incremental_object_entry::get_input_section_index): New function.
(Incremental_object_entry::shndx_): New data member.
(Incremental_object_entry::name_key_): Rename; adjust all refs.
(Incremental_object_entry::sh_size_): Rename; adjust all refs.
(Incremental_archive_entry::Incremental_archive_entry): Add argument
serial number.
(Incremental_inputs::report_archive_begin): Likewise.
(Incremental_inputs::report_object): Likewise.
(Incremental_inputs::report_script): Likewise.
(class Incremental_global_symbol_reader): New class.
(Incremental_input_entry_reader::Incremental_input_entry_reader): Read
and store flags and input file type.
(Incremental_input_entry_reader::arg_serial): New function.
(Incremental_input_entry_reader::type): Extract type from flags.
(Incremental_input_entry_reader::is_in_system_directory): New function.
(Incremental_input_entry_reader::get_input_section_count): Call
accessor function for type.
(Incremental_input_entry_reader::get_symbol_offset): Call accessor
function for type; adjust size of global symbol entry.
(Incremental_input_entry_reader::get_global_symbol_count): Call
accessor function for type.
(Incremental_input_entry_reader::get_object_count): Likewise.
(Incremental_input_entry_reader::get_object_offset): Likewise.
(Incremental_input_entry_reader::get_member_count): Likewise.
(Incremental_input_entry_reader::get_unused_symbol_count): Likewise.
(Incremental_input_entry_reader::get_member_offset): Likewise.
(Incremental_input_entry_reader::get_unused_symbol): Likewise.
(Incremental_input_entry_reader::Global_symbol_info): Remove.
(Incremental_input_entry_reader::get_global_symbol_info): Remove.
(Incremental_input_entry_reader::get_global_symbol_reader): New
function.
(Incremental_input_entry_reader::get_output_symbol_index): New
function.
(Incremental_input_entry_reader::type_): Remove.
(Incremental_input_entry_reader::flags_): New data member.
(Incremental_inputs_reader::input_file_offset): New function.
(Incremental_inputs_reader::input_file_index): New function.
(Incremental_inputs_reader::input_file): Call input_file_offset.
(Incremental_inputs_reader::input_file_at_offset): New function.
(Incremental_relocs_reader::get_r_type): Reformat.
(Incremental_relocs_reader::get_r_shndx): Reformat.
(Incremental_relocs_reader::get_r_offset): Reformat.
(Incremental_relocs_reader::data): New function.
(Incremental_binary::Incremental_binary): Initialize new data members.
(Incremental_binary::check_inputs): Add cmdline parameter.
(Incremental_binary::file_is_unchanged): Remove.
(Input_reader::arg_serial): New function.
(Input_reader::get_unused_symbol_count): New function.
(Input_reader::get_unused_symbol): New function.
(Input_reader::do_arg_serial): New function.
(Input_reader::do_get_unused_symbol_count): New function.
(Input_reader::do_get_unused_symbol): New function.
(Incremental_binary::input_file_count): New function.
(Incremental_binary::get_input_reader): Change signature to use
index instead of filename.
(Incremental_binary::file_has_changed): New function.
(Incremental_binary::get_input_argument): New function.
(Incremental_binary::get_library): New function.
(Incremental_binary::get_script_info): New function.
(Incremental_binary::init_layout): New function.
(Incremental_binary::reserve_layout): New function.
(Incremental_binary::output_file): New function.
(Incremental_binary::do_check_inputs): New function.
(Incremental_binary::do_file_is_unchanged): Remove.
(Incremental_binary::do_file_has_changed): New function.
(Incremental_binary::do_init_layout): New function.
(Incremental_binary::do_reserve_layout): New function.
(Incremental_binary::do_input_file_count): New function.
(Incremental_binary::do_get_input_reader): Change signature.
(Incremental_binary::input_args_map_): New data member.
(Incremental_binary::library_map_): New data member.
(Incremental_binary::script_map_): New data member.
(Sized_incremental_binary::Sized_incremental_binary): Initialize
new data members.
(Sized_incremental_binary::output_section): New function.
(Sized_incremental_binary::inputs_reader): Add const.
(Sized_incremental_binary::symtab_reader): Add const.
(Sized_incremental_binary::relocs_reader): Add const.
(Sized_incremental_binary::got_plt_reader): Add const.
(Sized_incremental_binary::get_symtab_view): New function.
(Sized_incremental_binary::Inputs_reader): New typedef.
(Sized_incremental_binary::Input_entry_reader): New typedef.
(Sized_incremental_binary::do_check_inputs): Add cmdline parameter.
(Sized_incremental_binary::do_file_is_unchanged): Remove.
(Sized_incremental_binary::do_file_has_changed): New function.
(Sized_incremental_binary::do_init_layout): New function.
(Sized_incremental_binary::do_reserve_layout): New function.
(Sized_input_reader::Inputs_reader): Remove.
(Sized_input_reader::Input_entry_reader): Remove.
(Sized_input_reader::do_arg_serial): New function.
(Sized_input_reader::do_get_unused_symbol_count): New function.
(Sized_input_reader::do_get_unused_symbol): New function.
(Sized_incremental_binary::do_input_file_count): New function.
(Sized_incremental_binary::do_get_input_reader): Change signature;
use index instead of filename.
(Sized_incremental_binary::section_map_): New data member.
(Sized_incremental_binary::input_entry_readers_): New data member.
(class Sized_incr_relobj): New class.
(class Sized_incr_dynobj): New class.
(make_sized_incremental_object): New function.
(class Incremental_library): New class.
* layout.cc (Free_list::num_lists): New static data member.
(Free_list::num_nodes): New static data member.
(Free_list::num_removes): New static data member.
(Free_list::num_remove_visits): New static data member.
(Free_list::num_allocates): New static data member.
(Free_list::num_allocate_visits): New static data member.
(Free_list::init): New function.
(Free_list::remove): New function.
(Free_list::allocate): New function.
(Free_list::dump): New function.
(Free_list::print_stats): New function.
(Layout_task_runner::run): Resize output file for incremental updates.
(Layout::Layout): Initialize new data members.
(Layout::set_incremental_base): New function.
(Layout::init_fixed_output_section): New function.
(Layout::layout_eh_frame): Do not build .eh_frame_hdr section for
incremental updates.
(Layout::create_gold_note): Do not create gold note section for
incremental updates.
(Layout::set_segment_offsets): Do not recalculate RELRO alignment
for incremental updates.
(Layout::set_section_offsets): For incremental updates, allocate space
from free list.
(Layout::create_symtab_sections): Layout with offsets relative to
start of section; for incremental updates, allocate space from free
list.
(Layout::create_shdrs): For incremental updates, allocate space from
free list.
(Layout::finish_dynamic_section): For incremental updates, do not
check --as-needed (fixed in subsequent patch).
* layout.h (class Free_list): New class.
(Layout::set_incremental_base): New function.
(Layout::incremental_base): New function.
(Layout::init_fixed_output_section): New function.
(Layout::allocate): New function.
(Layout::incremental_base_): New data member.
(Layout::free_list_): New data member.
* main.cc (main): Print Free_list statistics.
* object.cc (Relobj::finalize_incremental_relocs): Add
clear_counts parameter; clear counts only when clear_counts is set.
(Sized_relobj::Sized_relobj): Initialize new base class.
(Sized_relobj::do_layout): Don't report special sections.
(Sized_relobj::do_for_all_local_got_entries): New function.
(Sized_relobj::write_local_symbols): Add symtab_off parameter; add
symtab_off to all symbol table offsets.
(Sized_relobj::do_get_global_symbol_counts): Add typename keyword.
* object.h (class Got_offset_list): Move to top of file.
(Object::Object): Allow case where input_file == NULL.
(Object::~Object): Likewise.
(Object::input_file): Assert that input_file != NULL.
(Object::lock): Allow case where input_file == NULL.
(Object::unlock): Likewise.
(Object::is_locked): Likewise.
(Object::token): Likewise.
(Object::release): Likewise.
(Object::is_incremental): New function.
(Object::get_mtime): New function.
(Object::for_all_local_got_entries): New function.
(Object::clear_view_cache_marks): Allow case where input_file == NULL.
(Object::set_is_in_system_directory): New function.
(Object::is_in_system_directory): New function.
(Object::do_is_incremental): New function.
(Object::do_get_mtime): New function.
(Object::do_for_all_local_got_entries): New function.
(Object::is_in_system_directory_): New data member.
(Relobj::finalize_incremental_relocs): Add clear_counts parameter.
(class Sized_relobj_base): New class.
(class Sized_relobj): Derive from Sized_relobj_base.
(class Sized_relobj::Symbols): Redeclare from base class.
(class Sized_relobj::local_got_offset_list): Remove.
(class Sized_relobj::Output_sections): Redeclare from base class.
(class Sized_relobj::do_for_all_local_got_entries): New function.
(class Sized_relobj::write_local_symbols): Add offset parameter.
(class Sized_relobj::local_symbol_offset_): Update comment.
(class Sized_relobj::local_dynsym_offset_): Update comment.
* options.cc (Input_arguments::add_file): Remove const.
* options.h (Input_file_argument::Input_file_argument):
Initialize arg_serial_ (all constructors).
(Input_file_argument::set_arg_serial): New function.
(Input_file_argument::arg_serial): New function.
(Input_file_argument::arg_serial_): New data member.
(Input_arguments::Input_arguments): Initialize file_count_.
(Input_arguments::add_file): Remove const.
(Input_arguments::number_of_input_files): New function.
(Input_arguments::file_count_): New data member.
(Command_line::number_of_input_files): Call
Input_arguments::number_of_input_files.
* output.cc (Output_segment_headers::Output_segment_headers):
Set current size.
(Output_section::Input_section::current_data_size): New function.
(Output_section::Output_section): Initialize new data members.
(Output_section::add_input_section): Don't do merge sections for
an incremental link; allocate space from free list for an
incremental update.
(Output_section::add_output_section_data): Allocate space from
free list for an incremental update.
(Output_section::update_data_size): New function.
(Output_section::set_fixed_layout): New function.
(Output_section::reserve): New function.
(Output_segment::set_section_addresses): Remove const.
(Output_segment::set_section_list_addresses): Remove const; allocate
space from free list for an incremental update.
(Output_segment::set_offset): Adjust size of RELRO segment for an
incremental update.
* output.h (Output_data::current_data_size): Move here from
child classes.
(Output_data::pre_finalize_data_size): New function.
(Output_data::update_data_size): New function.
(Output_section_headers::update_data_size): new function.
(Output_section_data_build::current_data_size): Move to Output_data.
(Output_data_strtab::update_data_size): New function.
(Output_section::current_data_size): Move to Output_data.
(Output_section::set_fixed_layout): New function.
(Output_section::has_fixed_layout): New function.
(Output_section::reserve): New function.
(Output_section::update_data_size): New function.
(Output_section::has_fixed_layout_): New data member.
(Output_section::free_list_): New data member.
(Output_segment::set_section_addresses): Remove const.
(Output_segment::set_section_list_addresses): Remove const.
* plugin.cc (Sized_pluginobj::do_for_all_local_got_entries):
New function.
* plugin.h (Sized_pluginobj::do_for_all_local_got_entries):
New function.
* readsyms.cc (Read_symbols::do_read_symbols): Add library
parameter when calling Add_symbols constructor; store argument
serial number for members of a lib group.
(Add_symbols::locks): Allow case where token == NULL.
(Add_symbols::run): Report libraries denoted by --start-lib/--end-lib.
(Read_member::~Read_member): New function.
(Read_member::is_runnable): New function.
(Read_member::locks): New function.
(Read_member::run): New function.
(Check_script::~Check_script): New function.
(Check_script::is_runnable): New function.
(Check_script::locks): New function.
(Check_script::run): New function.
(Check_library::~Check_library): New function.
(Check_library::is_runnable): New function.
(Check_library::locks): New function.
(Check_library::run): New function.
* readsyms.h (Add_symbols::Add_symbols): Add library parameter.
(Add_symbols::library_): New data member.
(class Read_member): New class.
(class Check_script): New class.
(class Check_library): New class.
* reloc.cc (Read_relocs::is_runnable): Allow case where
token == NULL.
(Read_relocs::locks): Likewise.
(Scan_relocs::locks): Likewise.
(Relocate_task::locks): Likewise.
(Sized_relobj::do_scan_relocs): Tell finalize_incremental_relocs
to clear counters.
(Sized_relobj::incremental_relocs_scan): Fix comment.
(Sized_relobj::do_relocate): Pass output file offset to
write_local_symbols.
(Sized_relobj::incremental_relocs_write_reltype): Use reloc_size
from class declaration.
* script.cc (read_input_script): Allocate Script_info; pass
argument serial number to report_script.
* script.h (class Script_info): Move to incremental.h.
* symtab.cc (Symbol_table::add_from_incrobj): New function.
* symtab.h (Symbol_table::add_from_incrobj): New function.
(Symbol_table::set_file_offset): New function.
to take a Sized_incremental_binary; change caller. Use readers
in Sized_incremental_binary.
* incremental.cc
(Sized_incremental_binary::find_incremental_inputs_sections):
Rename do_find_incremental_inputs_sections to this.
(Sized_incremental_binary::setup_readers): New function.
(Sized_incremental_binary::do_check_inputs): Check
has_incremental_info_ flag; move setup code to setup_readers;
use input readers.
(Sized_incremental_binary::do_file_is_unchanged): New function.
(Sized_incremental_binary::do_get_input_reader): New function.
* incremental.h (class Incremental_binary): Move to end of file.
(Incremental_binary::file_is_unchanged): New function.
(Incremental_binary::do_file_is_unchanged): New function.
(Incremental_binary::Input_reader): New class.
(Incremental_binary::get_input_reader): New function.
(class Sized_incremental_binary): Move to end of file.
(Sized_incremental_binary::Sized_incremental_binary): Setup the
input section reader classes.
(Sized_incremental_binary::has_incremental_info): New function.
(Sized_incremental_binary::inputs_reader): New function.
(Sized_incremental_binary::symtab_reader): New function.
(Sized_incremental_binary::relocs_reader): New function.
(Sized_incremental_binary::got_plt_reader): New function.
(Sized_incremental_binary::do_file_is_unchanged): New function.
(Sized_incremental_binary::Sized_input_reader): New class.
(Sized_incremental_binary::get_input_reader): New function.
(Sized_incremental_binary::find_incremental_inputs_sections):
Rename do_find_incremental_inputs_sections to this.
(Sized_incremental_binary::setup_readers): New function.
(Sized_incremental_binary::has_incremental_info_): New data member.
(Sized_incremental_binary::inputs_reader_): New data member.
(Sized_incremental_binary::symtab_reader_): New data member.
(Sized_incremental_binary::relocs_reader_): New data member.
(Sized_incremental_binary::got_plt_reader_): New data member.
(Sized_incremental_binary::current_input_file_): New data member.
(Add_archive_symbols::run): Add script_info to call to
report_archive_begin.
(Lib_group::include_member): Adjust call to report_object.
(Add_lib_group_symbols::run): Adjust call to report_object.
* incremental-dump.cc (dump_incremental_inputs): Remove unnecessary
blocks. Add object count for script input files.
* incremental.cc (Incremental_inputs::report_archive_begin): Add
script_info parameter; change all callers.
(Incremental_inputs::report_object): Add script_info parameter;
change all callers.
(Incremental_inputs::report_script): Store backpointer to
incremental info entry.
(Output_section_incremental_inputs::set_final_data_size): Record
additional information for scripts.
(Output_section_incremental_inputs::write_info_blocks): Likewise.
* incremental.h (Incremental_script_entry::add_object): New function.
(Incremental_script_entry::get_object_count): New function.
(Incremental_script_entry::get_object): New function.
(Incremental_script_entry::objects_): New data member; adjust
constructor.
(Incremental_inputs::report_archive_begin): Add script_info parameter.
(Incremental_inputs::report_object): Add script_info parameter.
(Incremental_inputs_reader::get_object_count): New function.
(Incremental_inputs_reader::get_object_offset): New function.
* options.cc (Input_arguments::add_file): Return reference to
new input argument.
* options.h (Input_argument::set_script_info): New function.
(Input_argument::script_info): New function.
(Input_argument::script_info_): New data member; adjust all
constructors.
(Input_file_group::add_file): Return reference to new input argument.
(Input_file_lib::add_file): Likewise.
(Input_arguments::add_file): Likewise.
* readsyms.cc (Add_symbols::run): Adjust call to report_object.
* script.cc (Parser_closure::Parser_closure): Add script_info
parameter; adjust all callers.
(Parser_closure::script_info): New function.
(Parser_closure::script_info_): New data member.
(read_input_script): Report scripts earlier to incremental info.
(script_add_file): Set script_info in Input_argument.
(script_add_library): Likewise.
* script.h (Script_options::Script_info): Rewrite class.
method here from class Archive.
(Archive::Archive): Initialize base class.
(Archive::should_include_member): Move to base class.
(Archive::do_for_all_unused_symbols): New function.
(Add_archive_symbols::run): Remove redundant access to
incremental_inputs.
(Lib_group::Lib_group): Initialize base class.
(Lib_group::do_filename): New function.
(Lib_group::include_member): Pass pointer to Lib_group to
report_object.
(Lib_group::do_for_all_unused_symbols): New function.
(Add_lib_group_symbols::run): Report archive information for
incremental links.
* archive.h (class Library_base): New base class.
(class Archive): Derive from Library_base.
(Archive::filename): Move to base class.
(Archive::set_incremental_info): Likewise.
(Archive::incremental_info): Likewise.
(Archive::Should_include): Likewise.
(Archive::should_include_member): Likewise.
(Archive::Armap_entry): Remove.
(Archive::Unused_symbol_iterator): Remove.
(Archive::unused_symbols_begin): Remove.
(Archive::unused_symbols_end): Remove.
(Archive::do_filename): New function.
(Archive::do_get_mtime): New function.
(Archive::do_for_all_unused_symbols): New function.
(Archive::task_): Move to base class.
(Archive::incremental_info_): Likewise.
(class Lib_group): Derive from Library_base.
(Lib_group::do_filename): New function.
(Lib_group::do_get_mtime): New function.
(Lib_group::do_for_all_unused_symbols): New function.
(Lib_group::task_): Move to base class.
* dynobj.cc (Sized_dynobj::do_for_all_global_symbols): New
function.
* dynobj.h (Sized_dynobj::do_for_all_global_symbols): New
function.
* incremental.cc (Incremental_inputs::report_archive_begin):
Use Library_base; call library's get_mtime; add incremental inputs
entry before members.
(class Unused_symbol_visitor): New class.
(Incremental_inputs::report_archive_end): Use Library_base; use
visitor class to record unused symbols; don't add incremental inputs
entry after members.
(Incremental_inputs::report_object): Use Library_base.
* incremental.h
(Incremental_archive_entry::Incremental_archive_entry): Remove
unused Archive parameter.
(Incremental_inputs::report_archive_begin): Use Library_base.
(Incremental_inputs::report_archive_end): Likewise.
(Incremental_inputs::report_object): Likewise.
* object.cc (Sized_relobj::do_for_all_global_symbols): New
function.
* object.h (Object::for_all_global_symbols): New function.
(Object::do_for_all_global_symbols): New function.
(Sized_relobj::do_for_all_global_symbols): New function.
* plugin.cc (Sized_pluginobj::do_for_all_global_symbols): New
function.
* plugin.h (Sized_pluginobj::do_for_all_global_symbols): New
function.
but mark earlier ones as non-canonical
(offset_to_iterator): Update search target and example
(do_addr2line): Return extra lines in a vector*
(format_file_lineno): Extract from do_addr2line
(one_addr2line): Add vector* out-param
* dwarf_reader.h (Offset_to_lineno_entry): New field recording
when a lineno entry appeared last for its instruction
(Dwarf_line_info): Add vector* out-param
* object.cc (Relocate_info): Pass NULL for the vector* out-param
* symtab.cc (Odr_violation_compare): Include the lineno in the
comparison again.
(linenos_from_loc): New. Combine the canonical line for an
address with its other lines.
(True_if_intersect): New. Helper functor to make
std::set_intersection a query.
(detect_odr_violations): Compare sets of lines instead of just
one line for each function. This became less deterministic, but
has fewer false positives.
* symtab.h: Declarations.
* testsuite/Makefile.am (odr_violation2.o): Compile with -O2 to
mix an optimized and non-optimized object in the same binary
(odr_violation2.so): Same.
* testsuite/Makefile.in: Regenerate from Makefile.am.
* testsuite/debug_msg.cc (main): Make OdrDerived classes.
* testsuite/debug_msg.sh: Update line numbers and add
assertions.
* testsuite/odr_violation1.cc: Use OdrDerived, in a
non-optimized context.
* testsuite/odr_violation2.cc: Make sure Ordering::operator()
isn't inlined, and use OdrDerived in an optimized context.
* testsuite/odr_header1.h: Defines OdrDerived, where
optimization will change the
first-instruction-in-the-destructor's file and line number.
* testsuite/odr_header2.h: Defines OdrBase.
* fileread.cc: #include <climits>.
(GOLD_IOV_MAX): Define.
(File_read::read_multiple): Limit number of entries by iov_max.
* fileread.h (class File_read): Always set max_readv_entries to
128.
* symtab.cc (Symbol::should_add_dynsym_entry) Return false for
plugin only symbols.
(Symbol_table::sized_finalize_symbol) Mark symbol only present
in plugin files as not needed in the symbol table.
* icf.h (is_section_foldable_candidate): Change type of parameter
to std::string.
* icf.cc (Icf::find_identical_sections): Change type of local variable
section_name to be std::string.
(is_function_ctor_or_dtor): Change type of parameter to std::string.
(Plugin_manager::claim_file): Set any_claimed_.
(Plugin_manager::save_archive): New function.
(Plugin_manager::save_input_group): New function.
(Plugin_manager::all_symbols_read): Create Plugin_rescan task if
necessary.
(Plugin_manager::new_undefined_symbol): New function.
(Plugin_manager::rescan): New function.
(Plugin_manager::rescannable_defines): New function.
(Plugin_manager::add_input_file): Set any_added_.
* plugin.h (class Plugin_manager): define new fields rescannable_,
undefined_symbols_, any_claimed_, and any_added_. Declare
Plugin_rescan as friend. Declare new functions.
(Plugin_manager::Rescannable): Define type.
(Plugin_manager::Rescannable_list): Define type.
(Plugin_manager::Undefined_symbol_list): Define type.
(Plugin_manager::Plugin_manager): Initialize new fields.
* archive.cc (Archive::defines_symbol): New function.
(Add_archive_symbols::run): Pass archive to plugins if any.
* archive.h (class Archive): Declare defines_symbol.
* readsyms.cc (Input_group::~Input_group): New function.
(Finish_group::run): Pass input_group to plugins if any.
* readsyms.h (class Input_group): Declare destructor.
* symtab.cc (add_from_object): Pass undefined symbol to plugins if
any.
* x86_64.cc (Target_x86_64::Scan::check_non_pic): Give an error
for R_X86_64_32 and R_X86_64_PC32.
* testsuite/Makefile.am (ver_matching_def.so): Depend on and use
ver_matching_def_pic.o.
(ver_matching_def_pic.o): New target.
gold/:
* fileread.cc (file_counts_lock, file_counts_initialize_lock)
(total_mapped_bytes, current_mapped_bytes, maximum_mapped_bytes):
Move definition before File_read::View member definitions.
(File_read::View::~View): Initialize and hold lock before
updating current_mapped_bytes.
punconfigured to be NULL.
(Archive::read_symbols): Pass NULL to get_elf_object_for_member.
(Archive::include_member): Pass NULL to get_elf_object_for_member
if we searched for the archive and this is the first included
object.
track_relocs_type_ field.
* dwarf_reader.cc (Sized_dwarf_line_info::Sized_dwarf_line_info):
Set track_relocs_type_.
(Sized_dwarf_line_info::process_one_opcode): Ignore the section
contents when using RELA relocs.
(Sized_dwarf_line_info::read_relocs): Add the reloc addend to
reloc_map_.
* reloc.cc (Track_relocs::next_addend): New function.
* reloc.h (class Track_relocs): Declare next_addend.
`both*'. New configure option --{en,dis}able-ld.
ld, gold/
* configure.ac: For --enable-gold, handle value `default' instead of
`both*'. Always install ld as ld.gold, install as ld if gold is
the default.
* expression.cc (BINARY_EXPRESSION): Initialize left_alignment
and right_alignment to be zero. Store result alignment only if it is
greater than existing alignment.
by reference; adjust all callers.
* output.cc (Output_segment::set_section_addresses): Adjust references
to increase_relro. Add padding to *increase_relro when ORDER_RELRO_LAST
list is empty.
(Output_segment::set_offset): Assert if PT_GNU_RELRO segment does not
end at page boundary.
* layout.cc (Layout::choose_output_section): Transform names of
compressed sections even when using a script with a SECTIONS clause.
(Layout::output_section_name): Remove code to transform
compressed debug section names.
* output.cc (Output_section::add_input_section): Use uncompressed
section size when tracking input sections.
* symtab.h (Symbol::NON_PIC_REF): Remove.
(Symbol::RELATIVE_REF, Symbol::TLS_REF): New Reference_flags.
(Symbol::FUNCTION_CALL): Renumber. Reword comment.
(Symbol::needs_dynamic_reloc): Don't check NON_PIC_REF.
(Symbol::use_plt_offset): Take a flags argument and pass it
directly to needs_dynamic_reloc. Restrict check for undefined
weak symbols to function calls.
* arm.cc (Target_arm::Scan::get_reference_flags): New function.
(Target_arm::Scan::global): Use it.
(Target_arm::Scan::scan_reloc_for_stub): Likewise.
(Target_arm::Relocate::relocate): Likewise.
(Target_arm::Relocate::should_apply_static_reloc): Replace flags
parameter with an r_type parameter. Use get_reference_flags
to get the flags.
(Target_arm::Relocate::relocate): Update accordingly.
* i386.cc (Target_i386::Scan::get_reference_flags): New function.
(Target_i386::Scan::reloc_needs_plt_for_ifunc): Use it.
(Target_i386::Scan::global): Likewise.
(Target_i386::Relocate::relocate): Likewise.
(Target_i386::Relocate::should_apply_static_reloc): Replace flags
parameter with an r_type parameter. Use get_reference_flags
to get the flags.
(Target_i386::Relocate::relocate): Update accordingly.
* powerpc.cc (Target_powerpc::Scan::get_reference_flags): New function.
(Target_powerpc::Scan::global): Use it.
(Target_powerpc::Scan::scan_reloc_for_stub): Likewise.
(Target_powerpc::Relocate::relocate): Likewise.
* sparc.cc (Target_sparc::Scan::get_reference_flags): New function.
(Target_sparc::Scan::global): Use it.
(Target_sparc::Scan::scan_reloc_for_stub): Likewise.
(Target_sparc::Relocate::relocate): Likewise.
* x86_64.cc (Target_x86_64::Scan::get_reference_flags): New function.
(Target_x86_64::Scan::reloc_needs_plt_for_ifunc): Use it.
(Target_x86_64::Scan::global): Likewise.
(Target_x86_64::Relocate::relocate): Likewise.
Cary Coutant <ccoutant@google.com>
* arm.cc (Arm_exidx_merge_section::build_contents): New method.
(Arm_exidx_merge_section::section_contents_): New data member.
(Arm_input_section::Arm_input_section): Initialize original_contents_.
(Arm_input_section::~Arm_input_section): De-allocate memory.
(Arm_input_section::original_contents_): New data member.
(Arm_exidx_fixup::process_exidx_section): Pass EXIDX section contents
in parameters instead of calling Object::section_contents without
locking.
(Arm_output_section::group_section): New parameter TASK. Pass it
to callees that need locking objects.
(Arm_output_section::fix_exidx_coverage): New parameter TASK. Use it
to lock EXIDX input sections. Fix a formatting issue. Call
Arm_exidx_merged_section::build_contents to create merged section
contents.
(Arm_output_section::create_stub_group): New parameter TASK. Use it
to lock object of stub table owner.
(Arm_exidx_input_section::Arm_exidx_input_section): Add new parameter
TEXT_SIZE to initialize data member TEXT_SIZE_.
(Arm_exidx_input_section::addralign): Fix typo in comment.
(Arm_exidx_input_section::text_size): New method.
(Target_arm::do_relax): New parameter TASK. Pass it to callees
that require locking objects. Lock objects before scanning for stubs
and updating local symbols.
(Arm_input_section<big_endian>::init): Copy contents of original
input section.
(Arm_input_section<big_endian>::do_write): Use saved contents of
original input section instead of calling Object::section_contents
without locking.
(Arm_exidx_cantunwind::do_fixed_endian_write): Find out text section
size without calling Object::section_size().
(Arm_exidx_merged_section::Arm_exidx_merged_section): Add sanity check
for size. Allocate a buffer for merged EXIDX entries.
(Arm_exidx_merged_section::build_contents): New method.
(Arm_exidx_merged_section::do_write): Move merge section contents
building code to Arm_exidx_merged_section::build_contetns. Write
out contetns in buffer instead of building it on the fly.
(Arm_relobj::make_exidx_input_section): Also pass text section size
to Arm_exidx_input_section constructor.
(Arm_relobj::do_read_symbols): Fix memory leak. Fix a formatting issue.
(Arm_dynobj::do_read_symbols): Fix memory leak.
* layout.cc (Layout::finalize): Pass TASK to Target::relax().
* target.h: (class Task): Add forward declaration.
(Target::relax): Add new parameter TASK and pass it to
Target::do_relax().
(Target::do_relax):: New parameter TASK. Fix a formatting issue.
* copy-relocs.cc (Copy_relocs::emit_copy_reloc): Hold a lock on the
object when reading from the file.
* gold.cc (queue_middle_tasks): Hold a lock on the object when doing
second layout pass.
* icf.cc (preprocess_for_unique_sections): Hold a lock on the object
when reading section contents.
(get_section_contents): Likewise.
(icf::find_identical_sections): Likewise.
* mapfile.cc (Mapfile::print_discarded_sections): Hold a lock on the
object when reading from the file.
* plugin.cc (Plugin_manager::layout_deferred_objects): Hold a lock on
the object when doing deferred section layout.
* ldlang.c (ldlang_def_chain_list): New variable. Contains a list
of symbols defined via the --defsym command line option and
currently waiting assignment.
(insert_defined): Add a defined symbol to the symbol table.
(ldlang_add_def): Add a entry to the ldlang_def_chain_list.
(lang_place_defineds): Walk ldlang_def_chain_list defining the
symbols.
(lang_process): Call lang_place_defineds.
(lang_add_assignment): If the assignment has come from a --defsym
command line option then call lang_add_def.
* ld-script/default-script2.d: Fix expected address for text
section.
PR gold/12001
* script.h (class Symbol_assignment: name): New member. Returns
the name of the symbol.
* scrfipt.cc (Script_options::is_pending_assignment): New member.
Returns true if the given symbol name is on the list of
assignments wating to be processed.
* archive.cc (should_incldue_member): If the symbol is undefined,
check to see if it is on the list of symbols pending assignment.
* arm.cc (Arm_outout_section::fix_exidx_coverage): Adjust call to
Output_section::add_relaxed_input_section.
* output.cc (Output_section::add_relaxed_input_section): Add new
arguments LAYOUT and NAME. Set section order index.
(Output_section::convert_input_sections_in_list_to_relaxed_sections):
Copy section order index.
* output.h (Output_section::add_relaxed_input_section): Add new
arguments LAYOUT and NAME.
* arm.cc (Arm_relobj::do_read_symbols): Warn about ARM EXIDX sections
without SHF_LINK_ORDER flags.
* layout.cc (Layout::choose_output_section): Do not filter
SHF_LINK_ORDER flag in a relocatable link.
signature. Update all callers.
* output.cc (Output_segment::is_first_section_relro): Ignore TLS
sections.
(Output_segment::set_section_addresses): Align after last TLS
section. Add padding before last relro section instead of after.
segment that has been aligned for relro.
* output.cc (Output_segment::set_section_addresses): Change signature;
adjust all callers. Account for alignment when totalling
size of relro sections.
* output.h (Output_segment::set_section_addresses): Change signature.
* testsuite/Makefile.am (relro_test.sh, relro_test.stdout): New
targets.
* testsuite/Makefile.in: Regenerate.
* testsuite/relro_test.cc: Add alignment attributes to test proper
alignment of relro sections when padding is necessary.
* testsuite/relro_test.sh: New script.
(debug_string_to_enum): Add DEBUG_INCREMENTAL).
* gold.cc (queue_initial_tasks): Check parameters for incremental link
mode.
* incremental.cc (report_command_line): Ignore all forms of
--incremental.
* layout.cc (Layout::Layout): Check parameters for incremental link
mode.
* options.cc (General_options::parse_incremental): New function.
(General_options::parse_no_incremental): New function.
(General_options::parse_incremental_full): New function.
(General_options::parse_incremental_update): New function.
(General_options::incremental_mode_): New data member.
(General_options::finalize): Check incremental_mode_.
* options.h (General_options): Update help text for --incremental.
Add --no-incremental, --incremental-full, --incremental-update.
(General_options::Incremental_mode): New enum type.
(General_options::incremental_mode): New function.
(General_options::incremental_mode_): New data member.
* parameters.cc (Parameters::incremental_mode_): New data member.
(Parameters::set_options): Set incremental_mode_.
(Parameters::set_incremental_full): New function.
(Parameters::incremental): New function.
(Parameters::incremental_update): New function.
(set_parameters_incremental_full): New function.
* parameters.h (Parameters::set_incremental_full): New function.
(Parameters::incremental): New function.
(Parameters::incremental_update): New function.
(Parameters::incremental_mode_): New data member.
(set_parameters_incremental_full): New function.
* plugin.cc (Plugin_manager::add_input_file): Check parameters for
incremental link mode.
* reloc.cc (Sized_relobj::do_read_relocs): Likewise.
(Sized_relobj::do_relocate_sections): Likewise.
* testsuite/Makefile.am (incremental_test): Use --incremental-full
option.
* testsuite/Makefile.in: Regenerate.
* testsuite/incremental_test.sh: Filter all forms of --incremental.
current_lma_offset_ field. Rename current_vma_offset_ to
current_offset_. Add last_section_ field.
(Memory_region::get_current_vma_address): Rename to
get_current_address.
(Memory_region::get_current_lma_address): Delete.
(Memory_region::increment_vma_offset): Rename to
increment_offset.
(Memory_region::increment_lma_offset): Delete.
(Memory_region::attributes_compatible): New method. Returns
true if the provided section is compatible with the region.
(Memory_region::get_last_section): New method. Returns the last
section to use the region.
(Memory_region::set_last_section): New method. Stores the last
section to use the region.
(Script_sections::block_in_region): New method. Returns true if
a block of memory is contained within a region.
(Script_sections::find_memory_region): New method. Locates a
memory region to be used to set a VMA or LMA address.
(Output_section_definition::set_section_addresses): Add code to
check for addresses set by memory regions.
(Output_segment::set_section_addresses): Remove memory region
walking code.
(Script_sections::create_segment): Add a warning if a header
segment is created outside of any region.
* script-sections.h (class Script_sections): Add prototypes for
find_memory_region and block_in_region methods.
* testsuite/memory_test.s: Use .long instead of .word.
* testsuite/memory_test.t: Add some more output sections.
* testsuite/memory_test.sh: Update expected output.
* ld.texinfo: Update description of computation of VMA and LMA
addresses for output sections.
* ld-scripts/rgn-at5.t: Add some more output sections.
* ld-scripts/rgn-at5.d: Update expected output.
* target.h (Target::can_icf_inline_merge_sections): New virtual
function.
* x86_64.cc (Target__x86_64::can_icf_inline_merge_sections): New
virtual function.
* i386.cc (Target_i386::can_icf_inline_merge_sections): New
virtual function.
* icf.cc (get_section_contents): Inline merge sections only when
target allows it.
* arm.cc (Target_arm::Relocate::relocate): Ignore symbol type and
defintion if relocation uses GOT entries of the symbol.
* testsuite/icf_safe_test.sh: Fix test.
* testsuite/icf_safe_so_test.sh: Fix test.
position-independent executables to shared libraries need dynamic
relocations.
(Symbol::may_need_copy_reloc): Do not generate COPY relocs in
position-independent executables.
* testsuite/Makefile.am (two_file_mixed_pie_test): New test.
* testsuite/Makefile.in: Regenerate.
2010-09-09 H.J. Lu <hongjiu.lu@intel.com>
PR gold/11996
* object.cc (Sized_relobj::do_finalize_local_symbols): Remove
"This::" to work around a bug in gcc 4.2.
* testsuite/ifuncmain7.c (foo_ifunc): Add __attribute__ ((used)).
* layout.cc (Layout::attach_allocated_section_to_segment): Don't put
sections with different PF_X flags in the same segment.
(Layout::find_first_load_seg): Search all segments to find the first
one.
* options.h (rosegment): New.
* arm.cc (Arm_exidx_cantunwind::do_print_to_mapfile): New method.
(Arm_relobj::do_relocate_sections): Add new parameter for output
file to match the parent.
(Target_arm::scan_reloc_section_for_stubs): Use would-be final values
of local symbols instead of input values. Update code to track
changes in gold::relocate_section.
* object.cc (Sized_relobj::compute_final_local_value): New methods.
(Sized_relobj::compute_final_local_value_internal): New methods.
(Sized_relobj::do_finalize_local_symbols): Move code from loop
body into private version of Sized_relobj::compute_final_local_value.
Call the inline method.
* object.h (Symbol_value::Symbol_value): Define destructor. Free
merged symbol value if there is one.
(Symbol_value::has_output_value): New method defintiion.
(Sized_relobj::Compute_final_local_value_status): New enum type.
(Sized_relobj::compute_final_local_value): New methods.
(Sized_relobj::compute_final_local_value_internal): New methods.
* Makefile.am (check_SCRIPTS): Add arm_branch_out_of_range.sh
and arm_cortex_a8.sh.
(thumb_bl_out_of_range_local, arm_cortex_a8_b_cond, arm_cortex_a8_bl,
arm_cortex_a8_blx, arm_cortex_a8_local, arm_corte_a8_local_reloc):
New tests.
* Makefile.in: Regenerate.
* testsuite/arm_bl_out_of_range.s: Update test.
* testsuite/thumb_bl_out_of_range.s: Ditto.
* testsuite/thumb_blx_out_of_range.s: Ditto.
* testsuite/arm_branch_out_of_range.sh: New file.
* testsuite/arm_cortex_a8.sh: Ditto.
* testsuite/arm_cortex_a8_b.s: Ditto.
* testsuite/arm_cortex_a8_b_cond.s: Ditto.
* testsuite/arm_cortex_a8_b_local.s: Ditto.
* testsuite/arm_cortex_a8_bl.s: Ditto.
* testsuite/arm_cortex_a8_blx.s: Ditto.
* testsuite/arm_cortex_a8_local.s: Ditto.
* testsuite/arm_cortex_a8_local_reloc.s: Ditto.
* testsuite/thumb_bl_out_of_range_local.s: Ditto.
* Makefile.am (memory_test.stdout): Run readelf with -W
* Makefile.in: Regenerate.
* testsuite/memory_test.sh: Make the regexps accept both 32 and 64 bit outputs.
* script-sections.cc (Script_sections::add_memory_region): Convert
field precision to int.
* script.cc (script_set_section_region, script_set_section_region):
Convert field precision to int.
* expression.cc (script_exp_function_origin)
(script_exp_function_length): Move from here to ...
* script.cc: ... here.
(script_set_section_region, script_add_memory)
(script_parse_memory_attr, script_include_directive): New
functions.
* script-sections.cc
(class Memory_region): New class.
(class Output_section_definition): Add set_memory_region,
set_section_vma, set_section_lma and get_section_name methods.
(class Script_Sections): Add add_memory_region,
find_memory_region, find_memory_region_origin,
find_memory_region_length and set_memory_region methods.
Have set_section_addresses method walk the list of set memory
regions.
Extend the print methos to display memory regions.
* script-sections.h: Add prototypes for new methods.
Add enum for MEMORY region attributes.
* yyscript.y: Add support for parsing MEMORY regions.
* script-c.h: Add prototypes for new functions.
* testsuite/Makefile.am: Add test of MEMORY region functionality.
* testsuite/Makefile.in: Regenerate.
* testsuite/memory_test.sh: New script.
* testsuite/memory_test.s: New assembler source file.
* testsuite/memory_test.t: New linker script.
* gold/resolve.cc (Symbol_table::should_override): Let a weak
reference override an existing dynamic weak reference.
* testsuite/Makefile.am: Add new test dyn_weak_ref.
* testsuite/Makefile.in: Regenerate.
* testsuite/dyn_weak_ref.sh: New file.
* testsuite/dyn_weak_ref_1.c: Ditto.
* testsuite/dyn_weak_ref_2.c: Ditto.
symbols data.
(Lib_group::include_member): Unlock object after deleting its
symbols data.
* testsuite/start_lib_test_3.c: Remove all global symbols to trigger
the bug fixed here.
constructor, and set_blocker.
* gold/archive.cc (Add_lib_group_symbols::is_runnable): Also check
readsyms_blocker_.
* gold/readsyms.cc (Read_symbols::do_lib_group): Also pass
this->this_blocker_ to Add_lib_group_symbols::set_blocker.
* testsuite/Makefile.am (start_lib_test): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/start_lib_test_main.c: New file.
* testsuite/start_lib_test_1.c: New file.
* testsuite/start_lib_test_2.c: New file.
* testsuite/start_lib_test_3.c: New file.
* i386.cc (class Output_data_plt_i386): Update declarations.
Define Global_ifunc and Local_ifunc types. Add global_ifuncs_ and
local_ifuncs_ fields.
(Target_i386::do_plt_section_for_global): New function.
(Target_i386::do_plt_section_for_local): New function.
(Output_data_plt_i386::Output_data_plt_i386): Add symtab
parameter; change all callers. Initialize global_ifuncs_ and
local_ifuncs_. If doing a static link define __rel_iplt_start and
__rel_iplt_end.
(Output_data_plt_i386::add_entry): Handle IFUNC symbols.
(Output_data_plt_i386::add_local_ifunc_entry): New function.
(Output_data_plt_i386::do_write): Fix GOT entries for IFUNC
symbols.
(Target_i386::make_plt_section): New function, broken out of
make_plt_entry. Set sh_info field of .rel.plt to point to .plt.
(Target_i386::make_plt_entry): Call make_plt_section.
(Target_i386::make_local_ifunc_plt_entry): New function.
(Target_i386::Scan::reloc_needs_iplt_for_ifunc): New function.
(Target_i386::Scan::local): Handle IFUNC symbols. Add
R_386_IRELATIVE to switch.
(Target_i386::Scan::global): Likewise.
(Target_i386::Relocate::relocate): Likewise.
(Target_i386::Relocatable_size_for_reloc): Add R_386_IRELATIVE to
switch.
* x86_64.cc (class Output_data_plt_x86_64): Update declarations.
(Target_x86_64::do_plt_section_for_global): New function.
(Target_x86_64::do_plt_section_for_local): New function.
(Output_data_plt_x86_64::Output_data_plt_x86_64): Add symtab
parameter; change all callers. If doing a static link define
__rela_iplt_start and __rela_iplt_end.
(Output_data_plt_x86_64::add_entry): Handle IFUNC symbols.
(Output_data_plt_x86_64::add_local_ifunc_entry): New function.
(Target_x86_64::make_plt_section): Set sh_info field of .rel.plt
to point to .plt.
(Target_x86_64::make_local_ifunc_plt_entry): New function.
(Target_x86_64::Scan::check_non_pic): Add R_X86_64_IRELATIVE to
switch.
(Target_x86_64::Scan::reloc_needs_iplt_for_ifunc): New function.
(Target_x86_64::Scan::local): Handle IFUNC symbols. Add
R_X86_64_IRELATIVE to switch.
(Target_x86_64::Scan::global): Likewise.
(Target_x86_64::Relocate::relocate): Likewise.
(Target_x86_64::Relocatable_size_for_reloc): Add R_X86_64_IRELATIVE to
switch.
* target.h (class Target): Add plt_section_for_global and
plt_section_for_local functions. Add do_plt_section_for_global
and do_plt_section_for_local virtual functions.
* symtab.h (Symbol::needs_plt_entry): Handle IFUNC symbol. Add
clarifying comments.
(Symbol::use_plt_offset): Handle IFUNC symbol.
* object.cc (Sized_relobj::Sized_relobj): Initialize
local_plt_offsets_.
(Sized_relobj::local_has_plt_offset): New function.
(Sized_relobj::local_plt_offset): New function.
(Sized_relobj::set_local_plt_offset): New function.
(Sized_relobj::do_count): Handle IFUNC symbol.
* object.h (class Symbol_value): Add is_ifunc_symbol_ field. Take
a bit away from input_shndx_ field. Add set_is_func_symbol and
is_ifunc_symbol functions.
(class Sized_relobj): Update declarations. Remove Tls_got_entry
and Local_tls_got_offsets. Define Local_plt_offsets. Add
local_plt_offsets_ field.
(Sized_relobj::clear_local_symbols): Clear local_plt_offsets_.
* output.h (class Output_section_data): Add non-const
output_section function.
(class Output_data_got): Update declarations.
(class Output_data_got::Got_entry): Add use_plt_offset_ field.
Add use_plt_offset parameter to global and local constructors.
Change all callers. Change local_sym_index_ field to 31 bits.
Change GSYM_CODE and CONSTANT_CODE accordingly.
* output.cc (Output_data_reloc_base::do_adjust_output_section): If
doing a static link don't set sh_link field.
(Output_data_got::Got_entry::write): Use PLT offset if
appropriate.
(Output_data_got::add_global_plt): New function.
(Output_data_got::add_local_plt): New function.
* target-reloc.h (relocate_section): Handle IFUNC symbol.
* defstd.cc (in_section): Remove entries for __rel_iplt_start,
__rel_iplt_end, __rela_iplt_start, and __rela_iplt_end.
* configure.ac: Set IFUNC automake conditional for glibc >= 2.11.
* testsuite/Makefile.am: Add a bunch of IFUNC tests, all within
IFUNC conditional.
* testsuite/ifunc-sel.h: New file.
* testsuite/ifuncmain1.c: New file.
* testsuite/ifuncmain1vis.c: New file.
* testsuite/ifuncmod1.c: New file.
* testsuite/ifuncdep2.c: New file.
* testsuite/ifuncmain2.c: New file.
* testsuite/ifuncmain3.c: New file.
* testsuite/ifuncmod3.c: New file.
* testsuite/ifuncmain4.c: New file.
* testsuite/ifuncmain5.c: New file.
* testsuite/ifuncmod5.c: New file.
* testsuite/ifuncmain6pie.c: New file.
* testsuite/ifuncmod6.c: New file.
* testsuite/ifuncmain7.c: New file.
* configure, testsuite/Makefile.in: Rebuild.
Doug Kwan <dougkwan@google.com>
* resolve.cc (Symbol_table::should_override): When a weak dynamic
defintion overrides non-weak undef, remember that the original undef
is not weak.
* symtab.cc (Symbol_table::sized_write_global): For undef without
an original weak binding, set binding to global in output.
* testsuite/Makefile.am: Add new test strong_ref_weak_def.
* testsuite/Makefile.in: Regenerate.
* testsuite/strong_ref_weak_def.sh: New file.
* testsuite/strong_ref_weak_def_1.c: Ditto.
* testsuite/strong_ref_weak_def_2.c: Ditto.
* elfcpp.h (enum SHT): Add SHT_GNU_INCREMENTAL_GOT_PLT.
gold/ChangeLog:
* arm.cc (Target_arm::got_size): Add const.
(Target_arm::got_entry_count): New function.
(Target_arm::plt_entry_count): New function.
(Target_arm::first_plt_entry_offset): New function.
(Target_arm::plt_entry_size): New function.
(Output_data_plt_arm::entry_count): New function.
(Output_data_plt_arm::first_plt_entry_offset): New function.
(Output_data_plt_arm::get_plt_entry_size): New function.
* i386.cc (Target_i386::got_size): Add const.
(Target_i386::got_entry_count): New function.
(Target_i386::plt_entry_count): New function.
(Target_i386::first_plt_entry_offset): New function.
(Target_i386::plt_entry_size): New function.
(Output_data_plt_i386::entry_count): New function.
(Output_data_plt_i386::first_plt_entry_offset): New function.
(Output_data_plt_i386::get_plt_entry_size): New function.
* incremental-dump.cc (dump_incremental_inputs): Adjust call to
find_incremental_inputs_sections. Dump incremental_got_plt section.
* incremental.cc: Include target.h.
(Sized_incremental_binary::do_find_incremental_inputs_sections): Add
parameter. Adjust all callers. Find incremental_got_plt section.
(Incremental_inputs::create_data_sections): Create incremental_got_plt
section.
(Output_section_incremental_inputs::set_final_data_size): Calculate
size of incremental_got_plt section.
(Output_section_incremental_inputs::do_write): Write the
incremental_got_plt section.
(Got_plt_view_info): New struct.
(Local_got_offset_visitor): New class.
(Global_got_offset_visitor): New class.
(Global_symbol_visitor_got_plt): New class.
(Output_section_incremental_inputs::write_got_plt): New function.
* incremental.h (Incremental_binary::find_incremental_inputs_sections):
Add parameter. Adjust all callers.
(Incremental_binary::do_find_incremental_inputs_sections): Likewise.
(Incremental_inputs::got_plt_section): New function.
(Incremental_inputs::got_plt_section_): New data member.
(Incremental_got_plt_reader): New class.
* layout.cc (Layout::create_incremental_info_sections): Add the
incremental_got_plt section.
* object.h (Got_offset_list::get_list): New function.
(Got offset_list::for_all_got_offsets): New function.
(Sized_relobj::local_got_offset_list): New function.
* powerpc.cc (Target_powerpc::got_size): Add const.
(Target_powerpc::got_entry_count): New function.
(Target_powerpc::plt_entry_count): New function.
(Target_powerpc::first_plt_entry_offset): New function.
(Target_powerpc::plt_entry_size): New function.
(Output_data_plt_powerpc::entry_count): New function.
(Output_data_plt_powerpc::first_plt_entry_offset): New function.
(Output_data_plt_powerpc::get_plt_entry_size): New function.
* sparc.cc (Target_sparc::got_size): Add const.
(Target_sparc::got_entry_count): New function.
(Target_sparc::plt_entry_count): New function.
(Target_sparc::first_plt_entry_offset): New function.
(Target_sparc::plt_entry_size): New function.
(Output_data_plt_sparc::entry_count): New function.
(Output_data_plt_sparc::first_plt_entry_offset): New function.
(Output_data_plt_sparc::get_plt_entry_size): New function.
* symtab.h (Symbol::got_offset_list): New function.
(Symbol_table::for_all_symbols): New function.
* target.h (Sized_target::got_entry_count): New function.
(Sized_target::plt_entry_count): New function.
(Sized_target::plt_entry_size): New function.
* x86_64.cc (Target_x86_64::got_size): Add const.
(Target_x86_64::got_entry_count): New function.
(Target_x86_64::plt_entry_count): New function.
(Target_x86_64::first_plt_entry_offset): New function.
(Target_x86_64::plt_entry_size): New function.
(Output_data_plt_x86_64::entry_count): New function.
(Output_data_plt_x86_64::first_plt_entry_offset): New function.
(Output_data_plt_x86_64::get_plt_entry_size): New function.
* elfcpp.h (enum SHT): Add SHT_GNU_INCREMENTAL_SYMTAB,
SHT_GNU_INCREMENTAL_RELOCS.
gold/ChangeLog:
* archive.cc: Include incremental.h.
(Archive::Archive): Initialize incremental_info_.
(Archive::include_member): Record archive members in incremental info.
(Add_archive_symbols::run): Record begin and end of an archive in
incremental info.
(Lib_group::include_member): Record objects in incremental info.
* archive.h (Incremental_archive_entry): Forward declaration.
(Archive::set_incremental_info): New member function.
(Archive::incremental_info): New member function.
(Archive::Unused_symbol_iterator): New class.
(Archive::unused_symbols_begin): New member function.
(Archive::unused_symbols_end): New member function.
(Archive::incremental_info_): New data member.
* incremental-dump.cc (find_input_containing_global): New function.
(dump_incremental_inputs): Dump new incremental info sections.
* incremental.cc: Include symtab.h.
(Output_section_incremental_inputs): New class.
(Sized_incremental_binary::do_find_incremental_inputs_sections): Support
new incremental info sections.
(Sized_incremental_binary::do_check_inputs): Likewise.
(Incremental_inputs::report_archive): Remove.
(Incremental_inputs::report_archive_begin): New function.
(Incremental_inputs::report_archive_end): New function.
(Incremental_inputs::report_object): New function.
(Incremental_inputs::finalize_inputs): Remove.
(Incremental_inputs::report_input_section): New function.
(Incremental_inputs::report_script): Rewrite.
(Incremental_inputs::finalize): Do nothing but finalize string table.
(Incremental_inputs::create_incremental_inputs_section_data): Remove.
(Incremental_inputs::sized_create_inputs_section_data): Remove.
(Incremental_inputs::create_data_sections): New function.
(Incremental_inputs::relocs_entsize): New function.
(Output_section_incremental_inputs::set_final_data_size): New function.
(Output_section_incremental_inputs::do_write): New function.
(Output_section_incremental_inputs::write_header): New function.
(Output_section_incremental_inputs::write_input_files): New function.
(Output_section_incremental_inputs::write_info_blocks): New function.
(Output_section_incremental_inputs::write_symtab): New function.
* incremental.h (Incremental_script_entry): Forward declaration.
(Incremental_object_entry): Forward declaration.
(Incremental_archive_entry): Forward declaration.
(Incremental_inputs): Forward declaration.
(Incremental_inputs_header_data): Remove.
(Incremental_inputs_header): Remove.
(Incremental_inputs_header_write): Remove.
(Incremental_inputs_entry_data): Remove.
(Incremental_inputs_entry): Remove.
(Incremental_inputs_entry_write): Remove.
(enum Incremental_input_type): Add INCREMENTAL_INPUT_ARCHIVE_MEMBER.
(Incremental_binary::find_incremental_inputs_sections): Add parameters.
(Incremental_binary::do_find_incremental_inputs_sections): Likewise.
(Sized_ncremental_binary::do_find_incremental_inputs_sections):
Likewise.
(Incremental_input_entry): New class.
(Incremental_script_entry): New class.
(Incremental_object_entry): New class.
(Incremental_archive_entry): New class.
(Incremental_inputs::Incremental_inputs): Initialize new data members.
(Incremental_inputs::report_inputs): Remove.
(Incremental_inputs::report_archive): Remove.
(Incremental_inputs::report_archive_begin): New function.
(Incremental_inputs::report_archive_end): New function.
(Incremental_inputs::report_object): Change prototype.
(Incremental_inputs::report_input_section): New function.
(Incremental_inputs::report_script): Change prototype.
(Incremental_inputs::get_reloc_count): New function.
(Incremental_inputs::set_reloc_count): New function.
(Incremental_inputs::create_data_sections): New function.
(Incremental_inputs::create_incremental_inputs_section_data): Remove.
(Incremental_inputs::inputs_section): New function.
(Incremental_inputs::symtab_section): New function.
(Incremental_inputs::relocs_section): New function.
(Incremental_inputs::get_stringpool): Add const.
(Incremental_inputs::command_line): Add const.
(Incremental_inputs::inputs): Remove.
(Incremental_inputs::command_line_key): New function.
(Incremental_inputs::input_file_count): New function.
(Incremental_inputs::input_files): New function.
(Incremental_inputs::relocs_entsize): New function.
(Incremental_inputs::sized_create_inputs_section_data): Remove.
(Incremental_inputs::finalize_inputs): Remove.
(Incremental_inputs::Input_info): Remove.
(Incremental_inputs::lock_): Remove.
(Incremental_inputs::inputs_): Change type.
(Incremental_inputs::inputs_map_): Remove.
(Incremental_inputs::current_object_entry_): New data member.
(Incremental_inputs::inputs_section_): New data member.
(Incremental_inputs::symtab_section_): New data member.
(Incremental_inputs::relocs_section_): New data member.
(Incremental_inputs::reloc_count_): New data member.
(Incremental_inputs_reader): New class.
(Incremental_symtab_reader): New class.
(Incremental_relocs_reader): New class.
* layout.cc (Layout::finalize): Move finalization of incremental info
and creation of incremental info sections to follow finalization of
symbol table. Set offsets for postprocessing sections.
(Layout::create_incremental_info_sections): Call
Incremental_inputs::create_data_sections. Add incremental symtab
and relocs sections. Set sh_entsize and sh_link fields. Arrange for
sections to layout after input sections.
* layout.h (struct Timespec): Forward declaration.
(Layout::incremental_inputs): Add const.
(Layout::create_incremental_info_sections): Add parameter.
* main.cc (main): Remove call to Incremental_inputs::report_inputs.
* object.cc: Include incremental.h.
(Relobj::finalize_incremental_relocs): New function.
(Sized_relobj::do_layout): Record input sections in incremental info.
* object.h (Object::output_section): New function.
(Object::output_section_offset): Moved from Relobj.
(Object::get_incremental_reloc_base): New function.
(Object::get_incremental_reloc_count): New function.
(Object::do_output_section): New function.
(Object::do_output_section_offset): Moved from Relobj.
(Object::do_get_incremental_reloc_base): New function.
(Object::do_get_incremental_reloc_count): New function.
(Object::Object): Initialize new data members.
(Relobj::output_section): Renamed do_output_section and moved to
protected.
(Relobj::output_section_offset): Moved to Object.
(Relobj::do_get_incremental_reloc_base): New function.
(Relobj::do_get_incremental_reloc_count): New function.
(Relobj::allocate_incremental_reloc_counts): New function.
(Relobj::count_incremental_reloc): New function.
(Relobj::finalize_incremental_relocs): New function.
(Relobj::next_incremental_reloc_index): New function.
(Relobj::reloc_counts_): New data member.
(Relobj::reloc_bases_): New data member.
(Sized_relobj::do_relocate_sections): Add parameter. Change caller.
(Sized_relobj::relocate_sections): Add parameter. Change all callers.
(Sized_relobj::incremental_relocs_scan): New function.
(Sized_relobj::incremental_relocs_scan_reltype): New function.
(Sized_relobj::incremental_relocs_write): New function.
(Sized_relobj::incremental_relocs_write_reltype): New function.
* plugin.cc (Plugin_manager::add_input_file): Rewrite test for
incremental link.
* readsyms.cc (Read_symbols::do_read_symbols): Move reporting of
archives and object files elsewhere.
(Add_symbols::run): Report object files here.
(Finish_group::run): Report end of archive at end of group.
* reloc.cc: Include layout.h, incremental.h.
(Sized_relobj::do_read_relocs): Need relocations for incremental link.
(Sized_relobj::do_scan_relocs): Record relocations for incremental link.
(Sized_relobj::incremental_relocs_scan): New function.
(Sized_relobj::incremental_relocs_scan_reltype): New function.
(Sized_relobj::do_relocate_sections): Write incremental relocations.
(Sized_relobj::incremental_relocs_write): New function.
(Sized_relobj::incremental_relocs_write_reltype): New function.
* script.cc (read_input_script): Rewrite test for incremental link.
Change call to Incremental_inputs::report_script.
* symtab.h (Symbol_table::first_global_index): New function.
(Symbol_table::output_count): New function.
to reserve space in merged_strings vector. Keep total input size
for stats.
(Output_merge_string::do_print_merge_stats): Print total input size.
* merge.h (Output_merge_string): Add input_size_ field.
* stringpool.cc (Stringpool_template::string_length): Move
implementations out of Stringpool_template class and place in
stringpool.h.
* stringpool.h (string_length): Move out of Stringpool_template.
* output.cc (Output_segment::set_offset): Search for the first and
last sections rather than assuming that the list is in order.
(Output_segment::find_first_and_last_list): New function.
* output.h (class Output_segment): Update declarations.
* testsuite/Makefile.am (check_PROGRAMS): Add relro_strip_test.
(relro_strip_test_SOURCES): New variable.
(relro_strip_test_DEPENDENCIES): New variable.
(relro_strip_test_LDFLAGS): New variable.
(relro_strip_test_LDADD): New variable.
(relro_strip_test.so): New target.
(Target_i386::Target_i386):: Initialize got_tlsdesc_.
(Target_i386::got_tlsdesc_section): New function.
(Target_i386::got_section): Create space for GOT entries for
TLSDESC relocations.
(Target_i386::Scan::local): Use TLSDESC GOT for unoptimized
R_386_TLS_GOTDESC.
(Target_i386::Scan::global): Likewise.
(Target_i386::Relocate::relocate_tls): Adjust GOT offset when
using TLSDESC GOT.
* x86_64.cc (class Target_x86_64): Add got_tlsdesc_ field.
(Target_x86_64::Target_x86_64):: Initialize got_tlsdesc_.
(Target_x86_64::got_tlsdesc_section): New function.
(Target_x86_64::got_section): Create space for GOT entries for
TLSDESC relocations.
(Target_x86_64::Scan::local): Use TLSDESC GOT for unoptimized
R_386_TLS_GOTDESC.
(Target_x86_64::Scan::global): Likewise.
(Target_x86_64::Relocate::relocate_tls): Adjust GOT offset when
using TLSDESC GOT.
paramter to the call to gold::gc_process_relocs.
* i386.cc (Target_i386<big_endian>::gc_process_relocs): Add template
paramter to the call to gold::gc_process_relocs.
* x86_64.cc (Target_x86_64<big_endian>::gc_process_relocs): Add template
parameter to the call to gold::gc_process_relocs.
* powerpc.cc (Target_powerpc<big_endian>::gc_process_relocs): Add
template parameter to the call to gold::gc_process_relocs.
* sparc.cc (Target_sparc<big_endian>::gc_process_relocs): Add template
paramter to the call to gold::gc_process_relocs.
* gc.h (get_embedded_addend_size): New function.
(gc_process_relocs): Save the size of the reloc for use by ICF.
* icf.cc (get_section_contents): Get the addend from the text section
for SHT_REL relocation sections.
* icf.h (Icf::Reloc_addend_size_info): New typedef.
(Icf::Reloc_info): Add new member reloc_addend_size_info.
* int_encoding.h (read_from_pointer): New overloaded function.
* testsuite/Makefile.am (icf_sht_rel_addend_test): New test.
* testsuite/icf_sht_rel_addend_test.sh: New file.
* testsuite/icf_sht_rel_addend_test_1.cc: New file.
* testsuite/icf_sht_rel_addend_test_2.cc: New file.
string, and length fields.
(Output_merge_string::Merged_strings_list): New type.
(Output_merge_string::Merged_strings_lists): New typedef.
(Output_merge_string): Replace merged_strings_ with
merged_strings_lists_.
* merge.cc (Output_merge_string::do_add_input_section): Allocate new
Merged_strings_list per input object and section. Don't store pointer
to the string. Don't store length with each merged string entry.
(Output_merge_string::finalize_merged_data): Loop over list of merged
strings lists. Recompute length of each merged string.
* arm.cc (Arm_input_section::Arm_input_section): For a
SHT_ARM_EXIDX section, always keeps the input sections.
(Arm_input_section::set_exidx_section_link): New method.
(Arm_exidx_input_section::Arm_exidx_input_section): Initialize
has_errors_ to false.
(Arm_exidx_input_section::has_errors,
Arm_exidx_input_section::set_has_errors): New methods.
(Arm_exidx_input_section::has_errors_): New data member.
(Arm_relobj::get_exidx_shndx_list): New method.
(Arm_output_section::append_text_sections_to_list): Do not skip
section without SHF_EXECINSTR.
(Arm_output_section::fix_exidx_coverage): Skip input sections with
errors.
(Arm_relobj::make_exidx_input_section): Add new parameter for text
section header. Make error messages more verbose. Check for
a non-executable section linked to an EXIDX section.
(Arm_relobj::do_read_symbols): Remove error checking, which has been
moved to Arm_relobj::make_exidx_input_section. Add an assertion to
check that there is no deferred EXIDX section if we exit early.
Instead of not making an EXIDX section in case of an error, make one
and set the has_errors flag of it.
(Target_arm::do_finalize_sections): Fix up links of EXIDX sections
in a relocatable link.
(Target_arm::do_relax): Look for the EXIDX output section instead of
assuming that it is called .ARM.exidx.
(Target_arm::fix_exidx_coverage): Add a new parameter for input
section list. Do not check for SHF_EXECINSTR section flags but
skip any input section with errors.
* output.cc (Output_section::Output_section): Initialize
always_keeps_input_sections_ to false.
(Output_section::add_input_section): Check for
always_keeps_input_sections_.
* output.h (Output_section::always_keeps_input_sections,
Output_section::set_always_keeps_input_sections): New methods.
(Output_section::always_keeps_input_sections): New data member.
weak when resolving to a dynamic def.
(Symbol_table::should_override): Add adjust_dyndef flag; set it
for weak undef/dynamic def cases. Adjust callers.
* symtab.cc (Symbol::init_fields): Initialize undef_binding_set_ and
undef_binding_weak_.
(Symbol_table::sized_write_globals): Adjust symbol binding.
(Symbol_table::sized_write_symbol): Add binding parameter.
* symtab.h (Symbol::set_undef_binding): New method.
(Symbol::is_undef_binding_weak): New method.
(Symbol::undef_binding_set_, Symbol::undef_binding_weak_): New members.
(Symbol_table::should_override): Add new parameter.
(Symbol_table::sized_write_symbol): Add new parameter.
* testsuite/weak_undef_file1.cc: Add new test case.
* testsuite/weak_undef_file2.cc: Fix header comment.
* testsuite/weak_undef_test.cc: Add new test case.
* arm-reloc-property.cc (Arm_reloc_property::Arm_reloc_property):
Initialize USE_SYMBOL_.
* arm-reloc-property.h (Arm_reloc_property::uses_symbol): New method
definition.
(Arm_reloc_property::uses_symbol_): New data member declaration.
* arm.cc (Target_arm::Relocate::relocate): Exit early if relocation
uses symbol value and symbol is undefined but not weakly undefined.
* arm.cc (Target_arm::can_check_for_functions_pointers): Return true.
(Target_arm::section_may_have_icf_unsafe_pointers): New method
definition.
(Target_arm::Scan::local_reloc_may_be_function_pointer,
Target_arm::Scan::global_reloc_may_be_function_pointer): Implement
target hook to detect function points.
(Target_arm::Scan::possible_function_pointer_reloc): New method.
* icf.h (Icf::check_section_for_function_pointers): Change type of
parameter SECTION_NAME to const reference to std::string. Use
target hook to determine if section may have unsafe pointers.
* target.h (Target::section_may_have_icf_unsafe_pointers): New
method definition.
* fileread.cc (Input_file::find_fie): New
(Input_file::open): Use Input_file::find_fie.
* fileread.h (Input_file::find_fie): New
* plugin.cc (set_extra_library_path): New.
(Plugin::load): Add set_extra_library_path to the transfer vector.
(Plugin_manager::set_extra_library_path): New.
(Plugin_manager::add_input_file): Use the extra search path if set.
(set_extra_library_path(): New.
* plugin.h (Plugin_manager): Add set_extra_library_path and
extra_search_path_.
2010-06-21 Rafael Espindola <espindola@google.com>
* plugin-api.h (ld_plugin_set_extra_library_path): New.
(ld_plugin_tag): Add LDPT_SET_EXTRA_LIBRARY_PATH.
(ld_plugin_tv): Add tv_set_extra_library_path.
(Sized_relobj::do_layout_deferred_sections): Do layout for deferred
reloc sections.
* object.h (Sized_relobj::deferred_layout_relocs_): New data member.
PR 11683
* symtab.h (Symbol::is_placeholder): New member function.
* target-reloc.h (relocate_section): Check for placeholder symbols.
* testsuite/Makefile.am (plugin_test_8): New test.
(plugin_test_9): New test.
* testsuite/Makefile.in: Regenerate.
the '-' character. Treat these as libraries.
* script.cc (script_add_library): New function. Adds a library
specified by "-l<name>" found in an input script.
* script-c.h: Add prototype for script_add_library.
* arm.cc (Target_arm::do_relax): Reserve more space for stubs.
Restrict stub-group size to be within long conditional branch
range when working around cortex-A8 erratum.
* layout.cc (Layout::layout): Pass this pointer to add_input_section.
(Layout::layout_eh_frame): Ditto.
(Layout::find_section_order_index): New method.
(Layout::read_layout_from_file): New method.
* layout.h (Layout::find_section_order_index): New method.
(Layout::read_layout_from_file): New method.
(Layout::input_section_position_): New private member.
(Layout::input_section_glob_): New private member.
* main.cc (main): Call read_layout_from_file here.
* options.h (--section-ordering-file): New option.
* output.cc (Output_section::input_section_order_specified_): New
member.
(Output_section::Output_section): Initialize new member.
(Output_section::add_input_section): Add new parameter.
Keep input sections when --section-ordering-file is used.
(Output_section::set_final_data_size): Sort input sections when
section ordering file is specified.
(Output_section::Input_section_sort_entry): Add new parameter.
Check sorting type.
(Output_section::Input_section_sort_entry::compare_section_ordering):
New method.
(Output_section::Input_section_sort_compare::operator()): Change to
consider section_order_index.
(Output_section::Input_section_sort_init_fini_compare::operator()):
Change to consider section_order_index.
(Output_section::Input_section_sort_section_order_index_compare
::operator()): New method.
(Output_section::sort_attached_input_sections): Change to sort
according to section order when specified.
(Output_section::add_input_section<32, true>): Add new parameter.
(Output_section::add_input_section<64, true>): Add new parameter.
(Output_section::add_input_section<32, false>): Add new parameter.
(Output_section::add_input_section<64, false>): Add new parameter.
* output.h (Output_section::add_input_section): Add new parameter.
(Output_section::input_section_order_specified): New
method.
(Output_section::set_input_section_order_specified): New method.
(Input_section::Input_section): Initialize section_order_index_.
(Input_section::section_order_index): New method.
(Input_section::set_section_order_index): New method.
(Input_section::section_order_index_): New member.
(Input_section::Input_section_sort_section_order_index_compare): New
struct.
(Output_section::input_section_order_specified_): New member.
* script-sections.cc (is_wildcard_string): Delete and move modified
method to gold.h.
(Output_section_element_input::Output_section_element_input): Modify
call to is_wildcard_string.
(Output_section_element_input::Input_section_pattern
::Input_section_pattern): Ditto.
(Output_section_element_input::Output_section_element_input): Ditto.
* testsuite/Makefile.am (final_layout): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/final_layout.cc: New file.
* testsuite/final_layout.sh: New file.
* plugin-api.h (ld_plugin_tag): Add LDPT_OUTPUT_NAME.
2010-06-01 Rafael Espindola <espindola@google.com>
* plugin.cc (Plugin::load): Pass the output name to the plugin.
* object.cc (Sized_relobj::do_finalize_local_symbols): Use offset
from start of output section instead of address for a local symbol
in a merged or relaxed section when doing a relocatable link.
* arm.cc (Arm_input_section::do_output_offset): Use convert_types
instead of a cast.
(Target_arm::apply_cortex_a8_workaround): Rewrite a conditional branch
with a direct branch, not a conditional branch, to a stub.
* merge.cc (Output_merge_base::record_input_section): New method
defintion.
(Output_merge_data::do_add_input_section): Record input section if
keeps-input-sections flag is set.
(Output_merge_string::do_add_input_section): Ditto.
* merge.h (Output_merge_base::Output_merge_base): Initialize new data
members KEEPS_INPUT_SECTIONS_, FIRST_RELOBJ_, FIRST_SHNDX_ and
INPUT_SECTIONS_.
(Output_merge_base::keeps_input_sections,
Output_merge_base::set_keeps_input_sections,
Output_merge_base::first_relobj, Output_merge_base::first_shndx): New
method definitions.
(Output_merge_base::Input_sections): New type declaration.
(Output_merge_base::input_sections_begin,
Output_merge_base::input_sections_end,
Output_merge_base::do_set_keeps_input_sections): New method definitions.
(Output_merge_base::bool keeps_input_sections_,
Output_merge_base::first_relobj_, Output_merge_base::first_shndx_,
Output_merge_base::input_sections_): New data members.
(Output_merge_data::do_set_keeps_input_sections): New method
defintion.
(Output_merge_string::do_set_keeps_input_sections): Ditto.
* output.cc (Output_section::Input_section::relobj): Move method
defintion from class declaration to here and handle merge sections.
(Output_section::Input_section::shndx): Ditto.
(Output_section::Output_section): Remove initializations of removed
data members and initialize new data member LOOKUP_MAPS_.
(Output_section::add_input_section): Set keeps-input-sections flag
for a newly created merge output section as appropriate. Adjust code
to use Output_section_lookup_maps class.
(Output_section::add_relaxed_input_section): Adjst code for lookup
maps code refactoring.
(Output_section::add_merge_input_section): Add a new parameter
KEEPS_INPUT_SECTION. Adjust code to use Output_section_lookup_maps
class. If adding input section to a newly created merge output
section fails, remove the new merge section.
(Output_section::convert_input_sections_in_list_to_relaxed_input_sections):
Adjust code for use of the Output_section_lookup_maps class.
(Output_section::find_merge_section): Ditto.
(Output_section::build_lookup_maps): New method defintion.
(Output_section::find_relaxed_input_section): Adjust code to use
Output_section_lookup_maps class.
(Output_section::get_input_sections): Export merge sections. Adjust
code to use Output_section_lookup_maps class.
(Output_section:::add_script_input_section): Adjust code to use
Output_section_lookup_maps class. Update lookup maps for merge
sections also.
(Output_section::discard_states): Use Output_section_lookup_maps.
(Output_section::restore_states): Same.
* output.h (Merge_section_properties): Move class defintion out of
Output_section.
(Output_section_lookup_maps): New class.
(Output_section::Input_section::is_merge_section): New method
defintion.
(Output_section::Input_section::relobj): Move defintion out of class
defintion. Declare method only.
(Output_section::Input_section::shndx): Ditto.
(Output_section::Input_section::output_merge_base): New method defintion.
(Output_section::Input_section::u2_.pomb): New union field.
(Output_section::Merge_section_by_properties_map,
Output_section::Output_section_data_by_input_section_map,
Output_section::Ouptut_relaxed_input_section_by_input_section_map):
Remove types.
(Output_section::add_merge_input_section): Add new parameter
KEEPS_INPUT_SECTIONS.
(Output_section::build_lookup_maps): New method declaration.
(Output_section::merge_section_map_,
Output_section::merge_section_by_properties_map_,
Output_section::relaxed_input_section_map_,
Output_section::is_relaxed_input_section_map_valid_): Remove data
members.
(Output_section::lookup_maps_): New data member.
* arm.cc (Arm_input_section::original_size): New method.
(Arm_input_section::do_addralign): Add a cast.
(Arm_input_section::do_output_offset): Remove static cast.
(Arm_input_section::original_addralign,
Arm_input_section::original_size_): Change type to uint32_t.
(Arm_input_section::init): Add safe casts for section alignment
and size.
(Arm_input_section::set_final_data_size): Do not set address and
offset of stub table.
(Arm_output_section::fix_exidx_coverage): Change use of of
Output_section::Simple_input_section to that of
Output_section::Input_section.
(Target_arm::do_relax): Set addresses and file offsets of Stub_tables
except for the first pass.
* output.cc (Output_section::get_input_sections): Change type of
input_sections to std::list<Input_section>.
(Output_section::add_script_input_section): Rename from
Output_section::add_simple_input_section. Change type of SIS
parameter from Simple_input_section to Input_section.
* output.h (Output_section::Simple_input_section): Remove class.
(Output_section::Input_section): Change class visibility to public.
(Output_section::Input_section::addralign): Use stored alignments
for special input sections if set.
(Output_section::Input_section::set_addralign): New method.
(Output_section::get_input_sections): Change parameter type from
list of Simple_input_section to list of Input_section.
(Output_section::add_script_input_section): Rename from
Output_section::add_simple_input_section. Change first parameter's
type from Simple_input_section to Input_section and remove the
second and third parameters.
* script-sections.cc (Input_section::Input_section_list): Change
type to list of Output_section::Input_section/
(Input_section_info::Input_section_info): Change parameter type of
INPUT_SECTION to Output_section::Input_section.
(Input_section_info::input_section): Change return type.
(Input_section_info::input_section_): Change type to
Output_section::Input_section.
(Output_section_element_input::set_section_addresses): Adjust code
to use Output_section::Input_section instead of
Output_section::Simple_input_section. Adjust code for renaming
of Output_section::add_simple_input_section.
(Orphan_output_section::set_section_addresses): Ditto.
* configure.ac (install_as_default): Define and set to false
unless --enable-gold or --enable-gold=both/gold has been
specified.
* configure: Regenerate.
* Makefile.am (install-exec-local): Install the executable as
'ld.gold'. If install_as_default is true then also install it as
'ld'.
* Makefile.in: Regenerated.
ld:
* configure.in (install_as_default): Define and set to true
unless --enable-gold=both/gold has been specified.
* configure: Regenerate.
* Makefile.am (transform): Use ld.bfd as the default name of
the linker.
(install-exec-local): Also install the executable as a binary
named 'ld' if install_as_default is true.
* Makefile.in: Regenerate.
* gc.h (gc_process_relocs): Pass information on relocs pointing to
sections that are not ordinary to icf.
* icf.cc (get_section_contents): Handle relocation pointing to section
with no object or shndx information.
* testsuite/Makefile.am: Remove icf_virtual_function_folding_test.sh
* testsuite/Makefile.in: Regenerate.
* testsuite/icf_virtual_function_folding_test.cc: Remove printf.
* testsuite/icf_virtual_function_folding_test.sh: Delete file.
* emultempl/armelf.em (merge_exidx_entries): New variable.
(OPTION_NO_MERGE_EXIDX_ENTRIES): New definition.
("no-merge-exidx-entries"): New option.
* ld.texinfo (merge-exidx-entries): Document this option.
2010-04-15 Andrew Haley <aph@redhat.com>
* bfd-in.h (elf32_arm_fix_exidx_coverage): Add new flag:
merge_exidx_entries.
* bfd-in2.h: Likewise.
* elf32-arm.c (elf32_arm_fix_exidx_coverage): Likewise. Use it to
control merging of exidx entries.
2010-04-15 Andrew Haley <aph@redhat.com>
* options.h (merge_exidx_entries): New option.
* arm.cc (class Arm_exidx_fixup): Add new arg, merge_exidx_entries.
(class Arm_exidx_fixup::merge_exidx_entries_): New member.
(Output_section::fix_exidx_coverage): Add new arg, merge_exidx_entries.
(Target_arm::merge_exidx_entries): New function.
(process_exidx_entry): Don't merge if merge_exidx_entries_ is false.
(Arm_output_section::fix_exidx_coverage): Pass merge_exidx_entries
to Arm_exidx_fixup constructor.
Add new arg, merge_exidx_entries.
(Target_arm::fix_exidx_coverage): pass merge_exidx_entries to
Arm_output_section::fix_exidx_coverage.
* icf.cc (get_section_contents): Check for preemptible functions.
Ignore addend when appropriate.
* symtab.cc (should_add_dynsym_entry): Add new parameter. Check for
section folded.
(add_from_relobj): Check for section folded.
(set_dynsym_indexes): Fix call to should_add_dynsym_entry.
* symtab.h (should_add_dynsym_entry): Add new parameter.
* target-reloc.h (scan_relocs): Check for section folded.
* x86_64.cc (Target_x86_64::Scan::possible_function_pointer_reloc):
Check reloc types for function pointers in shared objects.
* testsuite/Makefile.am (icf_virtual_function_folding_test): New test
case.
(icf_preemptible_functions_test): New test case.
(icf_string_merge_test): New test case.
* testsuite.Makefile.in: Regenerate.
* testsuite/icf_safe_so_test.sh: Change to not fold foo_glob and
bar_glob. Refactor code.
* testsuite/icf_preemptible_functions_test.cc: New file.
* testsuite/icf_preemptible_functions_test.sh: New file.
* testsuite/icf_string_merge_test.cc: New file.
* testsuite/icf_string_merge_test.sh: New file.
* testsuite/icf_virtual_function_folding_test.cc: New file.
* testsuite/icf_virtual_function_folding_test.sh: New file.
* arm.cc (Arm_output_section::fix_exidx_coverage): Mark object
for local symbol recounting if we remove a section due to ICF.
* gold.cc (queue_middle_gc_tasks): Create a dummy blocker if
there are no regular objects in input.
2010-04-09 Doug Kwan <dougkwan@google.com>
* layout.cc (Layout::choose_output_section): Handle script section
types.
(Layout::make_output_section_for_script): Add section type parameter.
Handle script section types.
* layout.h (Layout::make_output_section_for_script): Add section
type parameter.
* output.cc (Output_section::Output_section): Initialize data member
is_noload_.
(Output_section::do_reset_address_and_file_offset): Do not set address
to 0 if section is a NOLOAD section.
* output.h (Output_section::is_noload): New method.
(Output_section::set_is_noload): Ditto.
(Output_section::is_noload_): New data member.
* script-c.h (Script_section_type): New enum type.
(struct Parser_output_section_header): Add new file section_type.
* script-sections.cc (Sections_element::output_section_name): Add
parameter for returning script section type.
(Output_section_definition::output_section_name): Ditto.
(Output_section_definition::section_type)P; New method.
(Output_section_definiton::script_section_type_name): Ditto.
(Output_section_definition::script_section_type_): New data member.
(Output_section_definition::Output_section_definition): Initialize
data member Output_section_definition::script_section_type_.
(Output_section_definition::create_sections): Pass script section type
to Layout::make_output_section_for_script.
(Output_section_definition::output_section_name): Return script
section type to caller.
(Output_section_definition::set_section_address): Do not advance
dot value and load address if section type is NOLOAD. Set address
of NOLOAD sections regardless of section flags.
(Output_section_definition::print): Print section type if it is
not SCRIPT_SECTION_TYPE_NONE.
(Output_section_definition::section_type): New method.
(Output_section_definition::script_section_type_name): Ditto.
(Script_sections::output_section_name): Add new parameter
PSECTION_TYPE for returning script section type. Pass it to
section elements. Handle discard sections.
(Sort_output_sections::operator()): Handle NOLOAD sections.
* script-sections.h (Script_sections::Section_type): New enum type.
(Script_sections::output_section_name): Add a new parameter for
returning script section type.
* script.cc (script_keyword_parsecodes): Add keywords COPY, DSECT,
INFO and NOLOAD.
* yyscript.y (union): Add new field SECTION_TYPE.
(COPY, DSECT, INFO, NOLOAD): New tokens.
(opt_address_and_section_type): Change type to output_section_header.
(section_type): New non-terminal
(section_header): Handle section type.
(opt_address_and_section_type): Return section type value.
* layout.cc (Layout::choose_output_section): Handle script section
types.
(Layout::make_output_section_for_script): Add section type parameter.
Handle script section types.
* layout.h (Layout::make_output_section_for_script): Add section
type parameter.
* output.cc (Output_section::Output_section): Initialize data member
is_noload_.
(Output_section::do_reset_address_and_file_offset): Do not set address
to 0 if section is a NOLOAD section.
* output.h (Output_section::is_noload): New method.
(Output_section::set_is_noload): Ditto.
(Output_section::is_noload_): New data member.
* script-c.h (Script_section_type): New enum type.
(struct Parser_output_section_header): Add new file section_type.
* script-sections.cc (Sections_element::output_section_name): Add
parameter for returning script section type.
(Output_section_definition::output_section_name): Ditto.
(Output_section_definition::section_type)P; New method.
(Output_section_definiton::script_section_type_name): Ditto.
(Output_section_definition::script_section_type_): New data member.
(Output_section_definition::Output_section_definition): Initialize
data member Output_section_definition::script_section_type_.
(Output_section_definition::create_sections): Pass script section type
to Layout::make_output_section_for_script.
(Output_section_definition::output_section_name): Return script
section type to caller.
(Output_section_definition::set_section_address): Do not advance
dot value and load address if section type is NOLOAD. Set address
of NOLOAD sections regardless of section flags.
(Output_section_definition::print): Print section type if it is
not SCRIPT_SECTION_TYPE_NONE.
(Output_section_definition::section_type): New method.
(Output_section_definition::script_section_type_name): Ditto.
(Script_sections::output_section_name): Add new parameter
PSECTION_TYPE for returning script section type. Pass it to
section elements. Handle discard sections.
(Sort_output_sections::operator()): Handle NOLOAD sections.
* script-sections.h (Script_sections::Section_type): New enum type.
(Script_sections::output_section_name): Add a new parameter for
returning script section type.
* script.cc (script_keyword_parsecodes): Add keywords COPY, DSECT,
INFO and NOLOAD.
* yyscript.y (union): Add new field SECTION_TYPE.
(COPY, DSECT, INFO, NOLOAD): New tokens.
(opt_address_and_section_type): Change type to output_section_header.
(section_type): New non-terminal
(section_header): Handle section type.
(opt_address_and_section_type): Return section type value.
* merge.cc (Output_merge_data::set_final_data_size): Handle empty
Output_merge_data.
* output.cc (Output_section::add_merge_input_section): Simplify
code and return status of Output_merge_base::add_input_section.
Update merge section map only if Output_merge_base::add_input_section
returns true.
* arm.cc (Arm_relobj::scan_section_for_cortex_a8_erratum): Warn
if section is marked as containing instructions but has no mapping
symbols.
(Arm_relobj::do_count_local_symbols): Call adjust_sym_shndx to get
correct section index.
(Arm_relobj::find_linked_text_section): Ditto.
releasing file.
* object.cc (Read_symbols_data::~Read_symbols_data) New destructor.
* object.h (Read_symbols_data::Read_symbols_data) New constructor.
(Read_symbols_data::~Read_symbols_data) New destructor.
(Section_relocs::Section_relocs) New constructor.
(Section_relocs::~Section_relocs) New destructor.
(Read_relocs_data::Read_relocs_data) New constructor.
(Read_relocs_data::~Read_relocs_data) New destructor.
* testsuite/binary_unittest.cc (Sized_binary_test): Set sd member
pointers to NULL after deleting.
* arm.cc: Replace "endianity" with "endianness" in comments.
(Arm_exidx_cantunwind): Ditto.
(Arm_relobj::Arm_relobj): Initialize merge_flags_and_attribures.
(Arm_relobj::merge_flags_and_attributes): New method.
(Arm_relobj::merge_flags_and_attributes_): New data member.
(Arm_exidx_cantunwind::do_fixed_endian_write): Fix formatting.
(Arm_relobj::scan_sections_for_stubs): Ditto.
(Arm_relobj::do_read_symbols): Check to see if we really want to
merge processor-specific flags and attributes. Exit early if
an object is empty except for section names and the undefined symbol.
(Target_arm::do_finalize_sections): Move check for ELF format to
Arm_relobj::do_read_symbols. Merge processor specific flags and
attributes from a regular object only when we have determined that
it is aapropriate. Do not create an .ARM.attributes section in
output if there is no regular input object.
(Target_arm::merge_processor_specific_flags): Check
--warn-mismatch before printing any error.
(Target_arm::merge_object_attributes): Ditto.
* gold.cc (queue_middle_tasks): Handle the case in which there is
no regular object in input.
* options.cc (General_options::parse_EB): New method.
(General_options::parse_EL): Same.
(General_options::General_options): Initialize endianness_.
* options.h (-EB, -EL, -no-pipeline-knowledge, -p, --warn-mismatch):
New options.
(General_options::Endianness): New enum.
(General_options::endianness): New method.
(General_options::endianness_): New data member.
* parameters.cc (Parameters::set_options): Check target endianness.
(Parameters::set_target_once): Ditto.
(Parameters::check_target_endianness): New method.
(parameters_force_valid_target): If either -EL or -EB is specified,
use it to define endianness of default target.
* parameters.h (Parameters::check_target_endianness): New method
declaration.
* target.h (class Target): Change "endianity" to "endianness"
in comments.
* plugin.cc (Pluginobj::get_symbol_resolution_info): Check for
prevailing definitions of common symbols.
* testsuite/plugin_test_6.sh: New test case.
* testsuite/plugin_common_test_1.c: New test case.
* testsuite/plugin_common_test_2.c: New test case.
* testsuite/Makefile.am (plugin_test_6): New test case.
* testsuite/Makefile.in: Regenerate.
