binutils-gdb/gold/fileread.cc

1141 lines
29 KiB
C++
Raw Normal View History

2006-08-05 01:10:59 +02:00
// fileread.cc -- read files for gold
// Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
// Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
// MA 02110-1301, USA.
2006-08-05 01:10:59 +02:00
#include "gold.h"
#include <cstring>
#include <cerrno>
#include <climits>
2006-08-05 01:10:59 +02:00
#include <fcntl.h>
#include <unistd.h>
#ifdef HAVE_SYS_MMAN_H
2007-09-26 01:08:30 +02:00
#include <sys/mman.h>
#endif
#ifdef HAVE_READV
#include <sys/uio.h>
#endif
#include <sys/stat.h>
#include "filenames.h"
2006-08-05 01:10:59 +02:00
#include "debug.h"
#include "parameters.h"
2006-08-05 01:10:59 +02:00
#include "options.h"
#include "dirsearch.h"
#include "target.h"
#include "binary.h"
#include "descriptors.h"
* gold-threads.h (class Once): Define. (class Initialize_lock): Rewrite as child of Once. * gold-threads.cc (class Once_initialize): Define. (once_pointer_control): New static variable. (once_pointer, once_arg): New static variables. (c_run_once): New static function. (Once::Once, Once::run_once, Once::internal_run): New functions. (class Initialize_lock_once): Remove. (initialize_lock_control): Remove. (initialize_lock_pointer): Remove. (initialize_lock_once): Remove. (Initialize_lock::Initialize_lock): Move to gold-threads.h. (Initialize_lock::initialize): Rewrite. (Initialize_lock::do_run_once): New function. * archive.cc (Archive::interpret_header): Only clear name if it is not already empty. * fileread.cc: Include "gold-threads.h" (file_counts_lock): New static variable. (file_counts_initialize_lock): Likewise. (File_read::release): Only increment counts when using --stats. Use a lock around the increment. * parameters.cc (class Set_parameters_target_once): Define. (set_parameters_target_once): New static variable. (Parameters::Parameters): Move here from parameters.h. (Parameters::set_target): Rewrite. (Parameters::set_target_once): New function. (Parameters::clear_target): Move here and rewrite. * parameters.h (class Parameters): Update declarations. Add set_parameters_target_once_ field. (Parameters::Parameters): Move to parameters.cc. (Parameters::clear_target): Likewise. * readsyms.cc (Read_symbols::do_group): Create a Start_group task. (Start_group::~Start_group): New function. (Start_group::is_runnable): New function. (Start_group::locks, Start_group::run): New functions. (Finish_group::run): Change saw_undefined to size_t. * readsyms.h (class Start_group): Define. (class Finish_group): Change saw_undefined_ field to size_t. (Finish_group::Finish_group): Remove saw_undefined and this_blocker parameters. Change all callers. (Finish_group::set_saw_undefined): New function. (Finish_group::set_blocker): New function. * symtab.h (class Symbol_table): Change saw_undefined to return size_t. Change saw_undefined_ field to size_t. * target-select.cc (Set_target_once::do_run_once): New function. (Target_selector::Target_selector): Initialize set_target_once_ field. Don't initialize lock_ and initialize_lock_ fields. (Target_selector::instantiate_target): Rewrite. (Target_selector::set_target): New function. * target-select.h (class Set_target_once): Define. (class Target_selector): Update declarations. Make Set_target_once a friend. Remove lock_ and initialize_lock_ fields. Add set_target_once_ field.
2010-02-12 04:23:26 +01:00
#include "gold-threads.h"
2006-08-05 01:10:59 +02:00
#include "fileread.h"
// For systems without mmap support.
#ifndef HAVE_MMAP
# define mmap gold_mmap
# define munmap gold_munmap
# ifndef MAP_FAILED
# define MAP_FAILED (reinterpret_cast<void*>(-1))
# endif
# ifndef PROT_READ
# define PROT_READ 0
# endif
# ifndef MAP_PRIVATE
# define MAP_PRIVATE 0
# endif
# ifndef ENOSYS
# define ENOSYS EINVAL
# endif
static void *
gold_mmap(void *, size_t, int, int, int, off_t)
{
errno = ENOSYS;
return MAP_FAILED;
}
static int
gold_munmap(void *, size_t)
{
errno = ENOSYS;
return -1;
}
#endif
#ifndef HAVE_READV
struct iovec { void* iov_base; size_t iov_len; };
ssize_t
readv(int, const iovec*, int)
{
gold_unreachable();
}
#endif
2006-08-05 01:10:59 +02:00
namespace gold
{
* archive.cc (Archive::include_member): Adjust call to 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.
2011-04-12 02:44:48 +02:00
// Get the last modified time of an unopened file.
bool
get_mtime(const char* filename, Timespec* mtime)
{
struct stat file_stat;
if (stat(filename, &file_stat) < 0)
return false;
#ifdef HAVE_STAT_ST_MTIM
mtime->seconds = file_stat.st_mtim.tv_sec;
mtime->nanoseconds = file_stat.st_mtim.tv_nsec;
#else
mtime->seconds = file_stat.st_mtime;
mtime->nanoseconds = 0;
#endif
return true;
}
// Class File_read.
// A lock for the File_read static variables.
static Lock* file_counts_lock = NULL;
static Initialize_lock file_counts_initialize_lock(&file_counts_lock);
// The File_read static variables.
unsigned long long File_read::total_mapped_bytes;
unsigned long long File_read::current_mapped_bytes;
unsigned long long File_read::maximum_mapped_bytes;
2006-08-05 01:10:59 +02:00
// Class File_read::View.
File_read::View::~View()
{
gold_assert(!this->is_locked());
switch (this->data_ownership_)
2007-09-26 01:08:30 +02:00
{
case DATA_ALLOCATED_ARRAY:
free(const_cast<unsigned char*>(this->data_));
break;
case DATA_MMAPPED:
2007-09-26 01:08:30 +02:00
if (::munmap(const_cast<unsigned char*>(this->data_), this->size_) != 0)
gold_warning(_("munmap failed: %s"), strerror(errno));
if (!parameters->options_valid() || parameters->options().stats())
{
file_counts_initialize_lock.initialize();
Hold_optional_lock hl(file_counts_lock);
File_read::current_mapped_bytes -= this->size_;
}
break;
case DATA_NOT_OWNED:
break;
default:
gold_unreachable();
2007-09-26 01:08:30 +02:00
}
2006-08-05 01:10:59 +02:00
}
void
File_read::View::lock()
{
++this->lock_count_;
}
void
File_read::View::unlock()
{
gold_assert(this->lock_count_ > 0);
2006-08-05 01:10:59 +02:00
--this->lock_count_;
}
bool
File_read::View::is_locked()
{
return this->lock_count_ > 0;
}
// Class File_read.
File_read::~File_read()
{
gold_assert(this->token_.is_writable());
if (this->is_descriptor_opened_)
2006-08-05 01:10:59 +02:00
{
release_descriptor(this->descriptor_, true);
2006-08-05 01:10:59 +02:00
this->descriptor_ = -1;
this->is_descriptor_opened_ = false;
2006-08-05 01:10:59 +02:00
}
this->name_.clear();
this->clear_views(CLEAR_VIEWS_ALL);
2006-08-05 01:10:59 +02:00
}
// Open the file.
2006-08-05 01:10:59 +02:00
bool
File_read::open(const Task* task, const std::string& name)
2006-08-05 01:10:59 +02:00
{
gold_assert(this->token_.is_writable()
&& this->descriptor_ < 0
&& !this->is_descriptor_opened_
&& this->name_.empty());
2006-08-05 01:10:59 +02:00
this->name_ = name;
this->descriptor_ = open_descriptor(-1, this->name_.c_str(),
O_RDONLY);
if (this->descriptor_ >= 0)
{
this->is_descriptor_opened_ = true;
struct stat s;
if (::fstat(this->descriptor_, &s) < 0)
gold_error(_("%s: fstat failed: %s"),
this->name_.c_str(), strerror(errno));
this->size_ = s.st_size;
gold_debug(DEBUG_FILES, "Attempt to open %s succeeded",
this->name_.c_str());
this->token_.add_writer(task);
}
2006-08-05 01:10:59 +02:00
return this->descriptor_ >= 0;
}
// Open the file with the contents in memory.
bool
File_read::open(const Task* task, const std::string& name,
const unsigned char* contents, off_t size)
2006-08-05 01:10:59 +02:00
{
gold_assert(this->token_.is_writable()
&& this->descriptor_ < 0
&& !this->is_descriptor_opened_
&& this->name_.empty());
this->name_ = name;
this->whole_file_view_ = new View(0, size, contents, 0, false,
View::DATA_NOT_OWNED);
this->add_view(this->whole_file_view_);
this->size_ = size;
this->token_.add_writer(task);
return true;
2006-08-05 01:10:59 +02:00
}
// Reopen a descriptor if necessary.
void
File_read::reopen_descriptor()
{
if (!this->is_descriptor_opened_)
{
this->descriptor_ = open_descriptor(this->descriptor_,
this->name_.c_str(),
O_RDONLY);
if (this->descriptor_ < 0)
gold_fatal(_("could not reopen file %s"), this->name_.c_str());
this->is_descriptor_opened_ = true;
}
}
// Release the file. This is called when we are done with the file in
// a Task.
2006-08-05 01:10:59 +02:00
void
File_read::release()
2006-08-05 01:10:59 +02:00
{
gold_assert(this->is_locked());
* gold-threads.h (class Once): Define. (class Initialize_lock): Rewrite as child of Once. * gold-threads.cc (class Once_initialize): Define. (once_pointer_control): New static variable. (once_pointer, once_arg): New static variables. (c_run_once): New static function. (Once::Once, Once::run_once, Once::internal_run): New functions. (class Initialize_lock_once): Remove. (initialize_lock_control): Remove. (initialize_lock_pointer): Remove. (initialize_lock_once): Remove. (Initialize_lock::Initialize_lock): Move to gold-threads.h. (Initialize_lock::initialize): Rewrite. (Initialize_lock::do_run_once): New function. * archive.cc (Archive::interpret_header): Only clear name if it is not already empty. * fileread.cc: Include "gold-threads.h" (file_counts_lock): New static variable. (file_counts_initialize_lock): Likewise. (File_read::release): Only increment counts when using --stats. Use a lock around the increment. * parameters.cc (class Set_parameters_target_once): Define. (set_parameters_target_once): New static variable. (Parameters::Parameters): Move here from parameters.h. (Parameters::set_target): Rewrite. (Parameters::set_target_once): New function. (Parameters::clear_target): Move here and rewrite. * parameters.h (class Parameters): Update declarations. Add set_parameters_target_once_ field. (Parameters::Parameters): Move to parameters.cc. (Parameters::clear_target): Likewise. * readsyms.cc (Read_symbols::do_group): Create a Start_group task. (Start_group::~Start_group): New function. (Start_group::is_runnable): New function. (Start_group::locks, Start_group::run): New functions. (Finish_group::run): Change saw_undefined to size_t. * readsyms.h (class Start_group): Define. (class Finish_group): Change saw_undefined_ field to size_t. (Finish_group::Finish_group): Remove saw_undefined and this_blocker parameters. Change all callers. (Finish_group::set_saw_undefined): New function. (Finish_group::set_blocker): New function. * symtab.h (class Symbol_table): Change saw_undefined to return size_t. Change saw_undefined_ field to size_t. * target-select.cc (Set_target_once::do_run_once): New function. (Target_selector::Target_selector): Initialize set_target_once_ field. Don't initialize lock_ and initialize_lock_ fields. (Target_selector::instantiate_target): Rewrite. (Target_selector::set_target): New function. * target-select.h (class Set_target_once): Define. (class Target_selector): Update declarations. Make Set_target_once a friend. Remove lock_ and initialize_lock_ fields. Add set_target_once_ field.
2010-02-12 04:23:26 +01:00
if (!parameters->options_valid() || parameters->options().stats())
{
file_counts_initialize_lock.initialize();
Hold_optional_lock hl(file_counts_lock);
File_read::total_mapped_bytes += this->mapped_bytes_;
File_read::current_mapped_bytes += this->mapped_bytes_;
if (File_read::current_mapped_bytes > File_read::maximum_mapped_bytes)
File_read::maximum_mapped_bytes = File_read::current_mapped_bytes;
}
this->mapped_bytes_ = 0;
// Only clear views if there is only one attached object. Otherwise
// we waste time trying to clear cached archive views. Similarly
// for releasing the descriptor.
if (this->object_count_ <= 1)
{
this->clear_views(CLEAR_VIEWS_NORMAL);
if (this->is_descriptor_opened_)
{
release_descriptor(this->descriptor_, false);
this->is_descriptor_opened_ = false;
}
}
this->released_ = true;
2006-08-05 01:10:59 +02:00
}
// Lock the file.
2006-08-05 01:10:59 +02:00
void
File_read::lock(const Task* task)
2006-08-05 01:10:59 +02:00
{
gold_assert(this->released_);
this->token_.add_writer(task);
this->released_ = false;
}
// Unlock the file.
void
File_read::unlock(const Task* task)
{
this->release();
this->token_.remove_writer(task);
2006-08-05 01:10:59 +02:00
}
// Return whether the file is locked.
2006-08-05 01:10:59 +02:00
bool
File_read::is_locked() const
2006-08-05 01:10:59 +02:00
{
if (!this->token_.is_writable())
return true;
// The file is not locked, so it should have been released.
gold_assert(this->released_);
return false;
2006-08-05 01:10:59 +02:00
}
// See if we have a view which covers the file starting at START for
// SIZE bytes. Return a pointer to the View if found, NULL if not.
// If BYTESHIFT is not -1U, the returned View must have the specified
// byte shift; otherwise, it may have any byte shift. If VSHIFTED is
// not NULL, this sets *VSHIFTED to a view which would have worked if
// not for the requested BYTESHIFT.
2006-08-05 01:10:59 +02:00
inline File_read::View*
File_read::find_view(off_t start, section_size_type size,
unsigned int byteshift, File_read::View** vshifted) const
2006-08-05 01:10:59 +02:00
{
gold_assert(start <= this->size_
&& (static_cast<unsigned long long>(size)
<= static_cast<unsigned long long>(this->size_ - start)));
if (vshifted != NULL)
*vshifted = NULL;
// If we have the whole file mmapped, and the alignment is right,
// we can return it.
if (this->whole_file_view_)
if (byteshift == -1U || byteshift == 0)
return this->whole_file_view_;
off_t page = File_read::page_offset(start);
unsigned int bszero = 0;
Views::const_iterator p = this->views_.upper_bound(std::make_pair(page - 1,
bszero));
while (p != this->views_.end() && p->first.first <= page)
{
if (p->second->start() <= start
&& (p->second->start() + static_cast<off_t>(p->second->size())
>= start + static_cast<off_t>(size)))
{
if (byteshift == -1U || byteshift == p->second->byteshift())
{
p->second->set_accessed();
return p->second;
}
if (vshifted != NULL && *vshifted == NULL)
*vshifted = p->second;
}
++p;
}
return NULL;
2006-08-05 01:10:59 +02:00
}
// Read SIZE bytes from the file starting at offset START. Read into
// the buffer at P.
2006-08-05 01:10:59 +02:00
void
File_read::do_read(off_t start, section_size_type size, void* p)
2006-08-05 01:10:59 +02:00
{
2007-12-20 22:26:17 +01:00
ssize_t bytes;
if (this->whole_file_view_ != NULL)
2006-08-05 01:10:59 +02:00
{
bytes = this->size_ - start;
2007-12-20 22:26:17 +01:00
if (static_cast<section_size_type>(bytes) >= size)
{
memcpy(p, this->whole_file_view_->data() + start, size);
return;
}
2006-08-05 01:10:59 +02:00
}
else
{
this->reopen_descriptor();
2007-12-20 22:26:17 +01:00
char *read_ptr = static_cast<char *>(p);
off_t read_pos = start;
size_t to_read = size;
do
{
bytes = ::pread(this->descriptor_, read_ptr, to_read, read_pos);
if (bytes < 0)
gold_fatal(_("%s: pread failed: %s"),
this->filename().c_str(), strerror(errno));
read_pos += bytes;
read_ptr += bytes;
to_read -= bytes;
if (to_read == 0)
return;
}
while (bytes > 0);
bytes = size - to_read;
2006-08-05 01:10:59 +02:00
}
gold_fatal(_("%s: file too short: read only %lld of %lld bytes at %lld"),
this->filename().c_str(),
static_cast<long long>(bytes),
static_cast<long long>(size),
static_cast<long long>(start));
2006-08-05 01:10:59 +02:00
}
// Read data from the file.
2006-08-05 01:10:59 +02:00
void
File_read::read(off_t start, section_size_type size, void* p)
{
const File_read::View* pv = this->find_view(start, size, -1U, NULL);
if (pv != NULL)
{
memcpy(p, pv->data() + (start - pv->start() + pv->byteshift()), size);
return;
}
this->do_read(start, size, p);
2006-08-05 01:10:59 +02:00
}
// Add a new view. There may already be an existing view at this
// offset. If there is, the new view will be larger, and should
// replace the old view.
2006-08-05 01:10:59 +02:00
void
File_read::add_view(File_read::View* v)
2006-08-05 01:10:59 +02:00
{
std::pair<Views::iterator, bool> ins =
this->views_.insert(std::make_pair(std::make_pair(v->start(),
v->byteshift()),
v));
if (ins.second)
return;
// There was an existing view at this offset. It must not be large
// enough. We can't delete it here, since something might be using
// it; we put it on a list to be deleted when the file is unlocked.
File_read::View* vold = ins.first->second;
gold_assert(vold->size() < v->size());
if (vold->should_cache())
{
v->set_cache();
vold->clear_cache();
}
this->saved_views_.push_back(vold);
ins.first->second = v;
}
// Make a new view with a specified byteshift, reading the data from
// the file.
File_read::View*
File_read::make_view(off_t start, section_size_type size,
unsigned int byteshift, bool cache)
{
gold_assert(size > 0);
gold_assert(start <= this->size_
&& (static_cast<unsigned long long>(size)
<= static_cast<unsigned long long>(this->size_ - start)));
off_t poff = File_read::page_offset(start);
section_size_type psize = File_read::pages(size + (start - poff));
2006-08-05 01:10:59 +02:00
if (poff + static_cast<off_t>(psize) >= this->size_)
{
psize = this->size_ - poff;
gold_assert(psize >= size);
}
void* p;
View::Data_ownership ownership;
if (byteshift != 0)
2007-09-26 01:08:30 +02:00
{
p = malloc(psize + byteshift);
if (p == NULL)
gold_nomem();
memset(p, 0, byteshift);
this->do_read(poff, psize, static_cast<unsigned char*>(p) + byteshift);
ownership = View::DATA_ALLOCATED_ARRAY;
2007-09-26 01:08:30 +02:00
}
else
{
this->reopen_descriptor();
p = ::mmap(NULL, psize, PROT_READ, MAP_PRIVATE, this->descriptor_, poff);
if (p != MAP_FAILED)
{
ownership = View::DATA_MMAPPED;
this->mapped_bytes_ += psize;
}
else
{
p = malloc(psize);
if (p == NULL)
gold_nomem();
this->do_read(poff, psize, p);
ownership = View::DATA_ALLOCATED_ARRAY;
}
2007-09-26 01:08:30 +02:00
}
const unsigned char* pbytes = static_cast<const unsigned char*>(p);
File_read::View* v = new File_read::View(poff, psize, pbytes, byteshift,
cache, ownership);
this->add_view(v);
return v;
2006-08-05 01:10:59 +02:00
}
// Find a View or make a new one, shifted as required by the file
// offset OFFSET and ALIGNED.
File_read::View*
File_read::find_or_make_view(off_t offset, off_t start,
section_size_type size, bool aligned, bool cache)
{
// Check that start and end of the view are within the file.
if (start > this->size_
|| (static_cast<unsigned long long>(size)
> static_cast<unsigned long long>(this->size_ - start)))
gold_fatal(_("%s: attempt to map %lld bytes at offset %lld exceeds "
"size of file; the file may be corrupt"),
this->filename().c_str(),
static_cast<long long>(size),
static_cast<long long>(start));
unsigned int byteshift;
if (offset == 0)
byteshift = 0;
else
{
unsigned int target_size = (!parameters->target_valid()
? 64
: parameters->target().get_size());
byteshift = offset & ((target_size / 8) - 1);
// Set BYTESHIFT to the number of dummy bytes which must be
// inserted before the data in order for this data to be
// aligned.
if (byteshift != 0)
byteshift = (target_size / 8) - byteshift;
}
// If --map-whole-files is set, make sure we have a
// whole file view. Options may not yet be ready, e.g.,
// when reading a version script. We then default to
// --no-map-whole-files.
if (this->whole_file_view_ == NULL
&& parameters->options_valid()
&& parameters->options().map_whole_files())
this->whole_file_view_ = this->make_view(0, this->size_, 0, cache);
// Try to find a View with the required BYTESHIFT.
File_read::View* vshifted;
File_read::View* v = this->find_view(offset + start, size,
aligned ? byteshift : -1U,
&vshifted);
if (v != NULL)
{
if (cache)
v->set_cache();
return v;
}
// If VSHIFTED is not NULL, then it has the data we need, but with
// the wrong byteshift.
v = vshifted;
if (v != NULL)
{
gold_assert(aligned);
unsigned char* pbytes;
pbytes = static_cast<unsigned char*>(malloc(v->size() + byteshift));
if (pbytes == NULL)
gold_nomem();
memset(pbytes, 0, byteshift);
memcpy(pbytes + byteshift, v->data() + v->byteshift(), v->size());
File_read::View* shifted_view =
new File_read::View(v->start(), v->size(), pbytes, byteshift,
cache, View::DATA_ALLOCATED_ARRAY);
this->add_view(shifted_view);
return shifted_view;
}
// Make a new view. If we don't need an aligned view, use a
// byteshift of 0, so that we can use mmap.
return this->make_view(offset + start, size,
aligned ? byteshift : 0,
cache);
}
// Get a view into the file.
2006-08-05 01:10:59 +02:00
const unsigned char*
File_read::get_view(off_t offset, off_t start, section_size_type size,
bool aligned, bool cache)
{
File_read::View* pv = this->find_or_make_view(offset, start, size,
aligned, cache);
return pv->data() + (offset + start - pv->start() + pv->byteshift());
2006-08-05 01:10:59 +02:00
}
File_view*
File_read::get_lasting_view(off_t offset, off_t start, section_size_type size,
bool aligned, bool cache)
2006-08-05 01:10:59 +02:00
{
File_read::View* pv = this->find_or_make_view(offset, start, size,
aligned, cache);
2006-08-05 01:10:59 +02:00
pv->lock();
return new File_view(*this, pv,
(pv->data()
+ (offset + start - pv->start() + pv->byteshift())));
2006-08-05 01:10:59 +02:00
}
// Use readv to read COUNT entries from RM starting at START. BASE
// must be added to all file offsets in RM.
void
File_read::do_readv(off_t base, const Read_multiple& rm, size_t start,
size_t count)
{
unsigned char discard[File_read::page_size];
iovec iov[File_read::max_readv_entries * 2];
size_t iov_index = 0;
off_t first_offset = rm[start].file_offset;
off_t last_offset = first_offset;
ssize_t want = 0;
for (size_t i = 0; i < count; ++i)
{
const Read_multiple_entry& i_entry(rm[start + i]);
if (i_entry.file_offset > last_offset)
{
size_t skip = i_entry.file_offset - last_offset;
gold_assert(skip <= sizeof discard);
iov[iov_index].iov_base = discard;
iov[iov_index].iov_len = skip;
++iov_index;
want += skip;
}
iov[iov_index].iov_base = i_entry.buffer;
iov[iov_index].iov_len = i_entry.size;
++iov_index;
want += i_entry.size;
last_offset = i_entry.file_offset + i_entry.size;
}
this->reopen_descriptor();
gold_assert(iov_index < sizeof iov / sizeof iov[0]);
if (::lseek(this->descriptor_, base + first_offset, SEEK_SET) < 0)
gold_fatal(_("%s: lseek failed: %s"),
this->filename().c_str(), strerror(errno));
ssize_t got = ::readv(this->descriptor_, iov, iov_index);
if (got < 0)
gold_fatal(_("%s: readv failed: %s"),
this->filename().c_str(), strerror(errno));
if (got != want)
gold_fatal(_("%s: file too short: read only %zd of %zd bytes at %lld"),
this->filename().c_str(),
got, want, static_cast<long long>(base + first_offset));
}
// Portable IOV_MAX.
#if !defined(HAVE_READV)
#define GOLD_IOV_MAX 1
#elif defined(IOV_MAX)
#define GOLD_IOV_MAX IOV_MAX
#else
#define GOLD_IOV_MAX (File_read::max_readv_entries * 2)
#endif
// Read several pieces of data from the file.
void
File_read::read_multiple(off_t base, const Read_multiple& rm)
{
static size_t iov_max = GOLD_IOV_MAX;
size_t count = rm.size();
size_t i = 0;
while (i < count)
{
// Find up to MAX_READV_ENTRIES consecutive entries which are
// less than one page apart.
const Read_multiple_entry& i_entry(rm[i]);
off_t i_off = i_entry.file_offset;
off_t end_off = i_off + i_entry.size;
size_t j;
for (j = i + 1; j < count; ++j)
{
if (j - i >= File_read::max_readv_entries || j - i >= iov_max / 2)
break;
const Read_multiple_entry& j_entry(rm[j]);
off_t j_off = j_entry.file_offset;
gold_assert(j_off >= end_off);
off_t j_end_off = j_off + j_entry.size;
if (j_end_off - end_off >= File_read::page_size)
break;
end_off = j_end_off;
}
if (j == i + 1)
this->read(base + i_off, i_entry.size, i_entry.buffer);
else
{
File_read::View* view = this->find_view(base + i_off,
end_off - i_off,
-1U, NULL);
if (view == NULL)
this->do_readv(base, rm, i, j - i);
else
{
const unsigned char* v = (view->data()
+ (base + i_off - view->start()
+ view->byteshift()));
for (size_t k = i; k < j; ++k)
{
const Read_multiple_entry& k_entry(rm[k]);
gold_assert((convert_to_section_size_type(k_entry.file_offset
- i_off)
+ k_entry.size)
<= convert_to_section_size_type(end_off
- i_off));
memcpy(k_entry.buffer,
v + (k_entry.file_offset - i_off),
k_entry.size);
}
}
}
i = j;
}
}
// Mark all views as no longer cached.
void
File_read::clear_view_cache_marks()
{
// Just ignore this if there are multiple objects associated with
// the file. Otherwise we will wind up uncaching and freeing some
// views for other objects.
if (this->object_count_ > 1)
return;
for (Views::iterator p = this->views_.begin();
p != this->views_.end();
++p)
p->second->clear_cache();
for (Saved_views::iterator p = this->saved_views_.begin();
p != this->saved_views_.end();
++p)
(*p)->clear_cache();
}
// Remove all the file views. For a file which has multiple
// associated objects (i.e., an archive), we keep accessed views
// around until next time, in the hopes that they will be useful for
// the next object.
2006-08-05 01:10:59 +02:00
void
File_read::clear_views(Clear_views_mode mode)
2006-08-05 01:10:59 +02:00
{
bool keep_files_mapped = (parameters->options_valid()
&& parameters->options().keep_files_mapped());
Views::iterator p = this->views_.begin();
while (p != this->views_.end())
2006-08-05 01:10:59 +02:00
{
bool should_delete;
if (p->second->is_locked() || p->second->is_permanent_view())
should_delete = false;
else if (mode == CLEAR_VIEWS_ALL)
should_delete = true;
else if ((p->second->should_cache()
|| p->second == this->whole_file_view_)
&& keep_files_mapped)
should_delete = false;
else if (this->object_count_ > 1
&& p->second->accessed()
&& mode != CLEAR_VIEWS_ARCHIVE)
should_delete = false;
else
should_delete = true;
if (should_delete)
{
if (p->second == this->whole_file_view_)
this->whole_file_view_ = NULL;
delete p->second;
// map::erase invalidates only the iterator to the deleted
// element.
Views::iterator pe = p;
++p;
this->views_.erase(pe);
}
else
2006-08-05 01:10:59 +02:00
{
p->second->clear_accessed();
++p;
2006-08-05 01:10:59 +02:00
}
}
Saved_views::iterator q = this->saved_views_.begin();
while (q != this->saved_views_.end())
{
if (!(*q)->is_locked())
2006-08-05 01:10:59 +02:00
{
delete *q;
q = this->saved_views_.erase(q);
}
else
{
gold_assert(mode != CLEAR_VIEWS_ALL);
++q;
2006-08-05 01:10:59 +02:00
}
}
}
// Print statistical information to stderr. This is used for --stats.
void
File_read::print_stats()
{
fprintf(stderr, _("%s: total bytes mapped for read: %llu\n"),
program_name, File_read::total_mapped_bytes);
fprintf(stderr, _("%s: maximum bytes mapped for read at one time: %llu\n"),
program_name, File_read::maximum_mapped_bytes);
}
2006-08-05 01:10:59 +02:00
// Class File_view.
File_view::~File_view()
{
gold_assert(this->file_.is_locked());
2006-08-05 01:10:59 +02:00
this->view_->unlock();
}
// Class Input_file.
// Create a file given just the filename.
Input_file::Input_file(const char* name)
: found_name_(), file_(), is_in_sysroot_(false), format_(FORMAT_NONE)
{
this->input_argument_ =
new Input_file_argument(name, Input_file_argument::INPUT_FILE_TYPE_FILE,
"", false, Position_dependent_options());
}
// Create a file for testing.
Input_file::Input_file(const Task* task, const char* name,
const unsigned char* contents, off_t size)
: file_()
{
this->input_argument_ =
new Input_file_argument(name, Input_file_argument::INPUT_FILE_TYPE_FILE,
"", false, Position_dependent_options());
bool ok = this->file_.open(task, name, contents, size);
gold_assert(ok);
}
// Return the position dependent options in force for this file.
const Position_dependent_options&
Input_file::options() const
{
return this->input_argument_->options();
}
// Return the name given by the user. For -lc this will return "c".
const char*
Input_file::name() const
{
return this->input_argument_->name();
}
// Return whether this file is in a system directory.
bool
Input_file::is_in_system_directory() const
{
if (this->is_in_sysroot())
return true;
return parameters->options().is_in_system_directory(this->filename());
}
// Return whether we are only reading symbols.
bool
Input_file::just_symbols() const
{
return this->input_argument_->just_symbols();
}
* readsyms.cc (Read_symbols::incompatible_warning): New function. (Read_symbols::requeue): New function. (Read_symbols::do_read_symbols): If make_elf_object fails because the target type is not configured, and the file was searched for, issue a warning and retry with the next directory. (Add_symbols::run): If the file has an incompatible format, and it was searched for, requeue the Read_symbols task. On error, release the object. * readsyms.h (class Read_symbols): Add dirindex_ field. Add dirindex parameter to constructor. Change all callers. Declare incompatible_warning and requeue. (class Add_symbols): Add dirpath_, dirindex_, mapfile_, input_argument_ and input_group_ fields. Add them to constructor. Change all callers. (class Read_script): Add dirindex_ field. Add it to constructor. Change all callers. * archive.cc (Archive::setup): Remove input_objects parameter. Change all callers. (Archive::get_file_and_offset): Likewise. (Archive::read_all_symbols): Likewise. (Archive::read_symbols): Likewise. (Archive::get_elf_object_for_member): Remove input_objects parameter. Add punconfigured parameter. Change all callers. (Archive::add_symbols): Change return type to bool. Check return value of include_member. (Archive::include_all_members): Likewise. (Archive::include_member): Change return type to bool. Return false if first included object has incompatible target. Set included_member_ field. (Add_archive_symbols::run): If add_symbols returns false, requeue Read_symbols task. * archive.h (class Archive): Add included_member_ field. Initialize it in constructor. Add input_file and searched_for methods. Update declarations. (class Add_archive_symbols): Add dirpath_, dirindex_, and input_argument_ fields. Add them to constructor. Change all callers. * script.cc: Include "target-select.h". (class Parser_closure): Add skip_on_incompatible_target_ and found_incompatible_target_ fields. Add skip_on_incompatible_target parameter to constructor. Change all callers. Add methods skip_on_incompatible_target, clear_skip_on_incompatible_target, found_incompatible_target, and set_found_incompatible_target. (read_input_script): Add dirindex parameter. Change all callers. If parser finds an incompatible target, requeue Read_symbols task. (script_set_symbol): Clear skip_on_incompatible_target in closure. (script_add_assertion, script_parse_option): Likewise. (script_start_sections, script_add_phdr): Likewise. (script_check_output_format): New function. * script.h (read_input_script): Update declaration. * script-c.h (script_check_output_format): Declare. * yyscript.y (file_cmd): Handle OUTPUT_FORMAT. (ignore_cmd): Remove OUTPUT_FORMAT. * fileread.cc (Input_file::Input_file): Add explicit this. (Input_file::will_search_for): New function. (Input_file::open): Add pindex parameter. Change all callers. * fileread.h (class Input_file): Add input_file_argument method. Declare will_search_for. Update declarations. * object.cc (make_elf_object): Add punconfigured parameter. Change all callers. * object.h (class Object): Make input_file public. Add searched_for method. (make_elf_object): Update declaration. * dirsearch.cc (Dirsearch::find): Add pindex parameter. Use it to restart search. * dirsearch.h (class Dirsearch): Update declaration. * options.h (class General_options): Add --warn-search-mismatch. * parameters.cc (Parameters::is_compatible_target): New function. * parameters.h (class Parameters): Declare is_compatible_target. * workqueue.cc (Workqueue::add_blocker): New function. * workqueue.h (class Workqueue): Declare add_blocker.
2009-03-14 06:56:46 +01:00
// Return whether this is a file that we will search for in the list
// of directories.
bool
Input_file::will_search_for() const
{
return (!IS_ABSOLUTE_PATH(this->input_argument_->name())
&& (this->input_argument_->is_lib()
|| this->input_argument_->is_searched_file()
* readsyms.cc (Read_symbols::incompatible_warning): New function. (Read_symbols::requeue): New function. (Read_symbols::do_read_symbols): If make_elf_object fails because the target type is not configured, and the file was searched for, issue a warning and retry with the next directory. (Add_symbols::run): If the file has an incompatible format, and it was searched for, requeue the Read_symbols task. On error, release the object. * readsyms.h (class Read_symbols): Add dirindex_ field. Add dirindex parameter to constructor. Change all callers. Declare incompatible_warning and requeue. (class Add_symbols): Add dirpath_, dirindex_, mapfile_, input_argument_ and input_group_ fields. Add them to constructor. Change all callers. (class Read_script): Add dirindex_ field. Add it to constructor. Change all callers. * archive.cc (Archive::setup): Remove input_objects parameter. Change all callers. (Archive::get_file_and_offset): Likewise. (Archive::read_all_symbols): Likewise. (Archive::read_symbols): Likewise. (Archive::get_elf_object_for_member): Remove input_objects parameter. Add punconfigured parameter. Change all callers. (Archive::add_symbols): Change return type to bool. Check return value of include_member. (Archive::include_all_members): Likewise. (Archive::include_member): Change return type to bool. Return false if first included object has incompatible target. Set included_member_ field. (Add_archive_symbols::run): If add_symbols returns false, requeue Read_symbols task. * archive.h (class Archive): Add included_member_ field. Initialize it in constructor. Add input_file and searched_for methods. Update declarations. (class Add_archive_symbols): Add dirpath_, dirindex_, and input_argument_ fields. Add them to constructor. Change all callers. * script.cc: Include "target-select.h". (class Parser_closure): Add skip_on_incompatible_target_ and found_incompatible_target_ fields. Add skip_on_incompatible_target parameter to constructor. Change all callers. Add methods skip_on_incompatible_target, clear_skip_on_incompatible_target, found_incompatible_target, and set_found_incompatible_target. (read_input_script): Add dirindex parameter. Change all callers. If parser finds an incompatible target, requeue Read_symbols task. (script_set_symbol): Clear skip_on_incompatible_target in closure. (script_add_assertion, script_parse_option): Likewise. (script_start_sections, script_add_phdr): Likewise. (script_check_output_format): New function. * script.h (read_input_script): Update declaration. * script-c.h (script_check_output_format): Declare. * yyscript.y (file_cmd): Handle OUTPUT_FORMAT. (ignore_cmd): Remove OUTPUT_FORMAT. * fileread.cc (Input_file::Input_file): Add explicit this. (Input_file::will_search_for): New function. (Input_file::open): Add pindex parameter. Change all callers. * fileread.h (class Input_file): Add input_file_argument method. Declare will_search_for. Update declarations. * object.cc (make_elf_object): Add punconfigured parameter. Change all callers. * object.h (class Object): Make input_file public. Add searched_for method. (make_elf_object): Update declaration. * dirsearch.cc (Dirsearch::find): Add pindex parameter. Use it to restart search. * dirsearch.h (class Dirsearch): Update declaration. * options.h (class General_options): Add --warn-search-mismatch. * parameters.cc (Parameters::is_compatible_target): New function. * parameters.h (class Parameters): Declare is_compatible_target. * workqueue.cc (Workqueue::add_blocker): New function. * workqueue.h (class Workqueue): Declare add_blocker.
2009-03-14 06:56:46 +01:00
|| this->input_argument_->extra_search_path() != NULL));
}
// Return the file last modification time. Calls gold_fatal if the stat
// system call failed.
Timespec
File_read::get_mtime()
{
struct stat file_stat;
this->reopen_descriptor();
* archive.cc (Archive::include_member): Adjust call to 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.
2011-04-12 02:44:48 +02:00
if (fstat(this->descriptor_, &file_stat) < 0)
gold_fatal(_("%s: stat failed: %s"), this->name_.c_str(),
strerror(errno));
#ifdef HAVE_STAT_ST_MTIM
return Timespec(file_stat.st_mtim.tv_sec, file_stat.st_mtim.tv_nsec);
#else
return Timespec(file_stat.st_mtime, 0);
#endif
}
// Try to find a file in the extra search dirs. Returns true on success.
bool
Input_file::try_extra_search_path(int* pindex,
const Input_file_argument* input_argument,
std::string filename, std::string* found_name,
std::string* namep)
{
if (input_argument->extra_search_path() == NULL)
return false;
std::string name = input_argument->extra_search_path();
if (!IS_DIR_SEPARATOR(name[name.length() - 1]))
name += '/';
name += filename;
struct stat dummy_stat;
if (*pindex > 0 || ::stat(name.c_str(), &dummy_stat) < 0)
return false;
*found_name = filename;
*namep = name;
return true;
}
// Find the actual file.
// If the filename is not absolute, we assume it is in the current
// directory *except* when:
// A) input_argument_->is_lib() is true;
// B) input_argument_->is_searched_file() is true; or
// C) input_argument_->extra_search_path() is not empty.
// In each, we look in extra_search_path + library_path to find
// the file location, rather than the current directory.
bool
Input_file::find_file(const Dirsearch& dirpath, int* pindex,
const Input_file_argument* input_argument,
bool* is_in_sysroot,
std::string* found_name, std::string* namep)
2006-08-05 01:10:59 +02:00
{
std::string name;
// Case 1: name is an absolute file, just try to open it
// Case 2: name is relative but is_lib is false, is_searched_file is false,
// and extra_search_path is empty
if (IS_ABSOLUTE_PATH(input_argument->name())
|| (!input_argument->is_lib()
&& !input_argument->is_searched_file()
&& input_argument->extra_search_path() == NULL))
{
name = input_argument->name();
*found_name = name;
*namep = name;
return true;
}
// Case 3: is_lib is true or is_searched_file is true
else if (input_argument->is_lib()
|| input_argument->is_searched_file())
2006-08-05 01:10:59 +02:00
{
std::vector<std::string> names;
names.reserve(2);
if (input_argument->is_lib())
{
std::string prefix = "lib";
prefix += input_argument->name();
if (parameters->options().is_static()
|| !input_argument->options().Bdynamic())
names.push_back(prefix + ".a");
else
{
names.push_back(prefix + ".so");
names.push_back(prefix + ".a");
}
}
else
names.push_back(input_argument->name());
for (std::vector<std::string>::const_iterator n = names.begin();
n != names.end();
++n)
if (Input_file::try_extra_search_path(pindex, input_argument, *n,
found_name, namep))
return true;
// It is not in the extra_search_path.
name = dirpath.find(names, is_in_sysroot, pindex, found_name);
if (name.empty())
2006-08-05 01:10:59 +02:00
{
gold_error(_("cannot find %s%s"),
input_argument->is_lib() ? "-l" : "",
input_argument->name());
return false;
2006-08-05 01:10:59 +02:00
}
*namep = name;
return true;
2006-08-05 01:10:59 +02:00
}
// Case 4: extra_search_path is not empty
else
{
gold_assert(input_argument->extra_search_path() != NULL);
if (try_extra_search_path(pindex, input_argument, input_argument->name(),
found_name, namep))
return true;
// extra_search_path failed, so check the normal search-path.
int index = *pindex;
if (index > 0)
--index;
name = dirpath.find(std::vector<std::string>(1, input_argument->name()),
is_in_sysroot, &index, found_name);
if (name.empty())
{
gold_error(_("cannot find %s"),
input_argument->name());
return false;
}
*namep = name;
*pindex = index + 1;
return true;
}
}
// Open the file.
bool
Input_file::open(const Dirsearch& dirpath, const Task* task, int* pindex)
{
std::string name;
if (!Input_file::find_file(dirpath, pindex, this->input_argument_,
&this->is_in_sysroot_, &this->found_name_, &name))
return false;
// Now that we've figured out where the file lives, try to open it.
General_options::Object_format format =
this->input_argument_->options().format_enum();
bool ok;
if (format == General_options::OBJECT_FORMAT_ELF)
{
ok = this->file_.open(task, name);
this->format_ = FORMAT_ELF;
}
else
{
gold_assert(format == General_options::OBJECT_FORMAT_BINARY);
ok = this->open_binary(task, name);
this->format_ = FORMAT_BINARY;
}
if (!ok)
2006-08-05 01:10:59 +02:00
{
2007-10-14 08:57:58 +02:00
gold_error(_("cannot open %s: %s"),
name.c_str(), strerror(errno));
this->format_ = FORMAT_NONE;
return false;
2006-08-05 01:10:59 +02:00
}
return true;
2006-08-05 01:10:59 +02:00
}
// Open a file for --format binary.
bool
Input_file::open_binary(const Task* task, const std::string& name)
{
// In order to open a binary file, we need machine code, size, and
2008-02-13 03:44:50 +01:00
// endianness. We may not have a valid target at this point, in
// which case we use the default target.
* object.h (class Object): Remove target_ field, and target, sized_target, and set_target methods. (Object::sized_target): Remove. (class Sized_relobj): Update declarations. Remove sized_target. * object.cc (Sized_relobj::setup): Remove target parameter. Change all callers. (Input_objects::add_object): Don't do anything with the target. (make_elf_sized_object): Add punconfigured parameter. Change all callers. Set or test parameter target. * dynobj.cc (Sized_dynobj::target): Remove target parameter. Change all callers. * parameters.cc (Parameters::set_target): Change parameter type to be non-const. (Parameters::default_target): Remove. (set_parameters_target): Change parameter type to be non-const. (parameters_force_valid_target): New function. (parameters_clear_target): New function. * parameters.h (class Parameters): Update declarations. Remove default_target method. Add sized_target and clear_target methods. Change target_ to be non-const. (set_parameters_target): Update declaration. (parameters_force_valid_target): Declare. (parameters_clear_target): Declare. * readsyms.cc (Read_symbols::do_read_symbols): Pass punconfigured as NULL if we aren't searching. (Add_symbols::run): Don't check for compatible target. * fileread.cc (Input_file::open_binary): Call parameters_force_valid_target. * gold.cc (queue_middle_tasks): Likewise. * plugin.cc (make_sized_plugin_object): Likewise. Don't call set_target on object. * dynobj.h (class Sized_dynobj): Update declarations. * archive.cc (Archive::get_elf_object_for_member): Return NULL if make_elf_object returns NULL. (Archive::include_member): Don't check whether object target is compatible. * output.cc (Output_section::add_input_section): Get target from parameters. (Output_section::relax_input_section): Likewise. * reloc.cc (Sized_relobj::do_gc_process_relocs): Get target from parameters. (Sized_relobj::do_scan_relocs): Likewise. (Sized_relobj::relocate_sections): Likewise. * resolve.cc (Symbol_table::resolve): Likewise. * symtab.cc (Symbol_table::wrap_symbol): Likewise. Remove object parameter. Change all callers. (Symbol_table::add_from_object): Get target from parameters. (Symbol_table::add_from_relobj): Don't check object target. (Symbol_table::add_from_dynobj): Likewise. (Symbol_table::define_special_symbol): Get target from parameters. * symtab.h (class Symbol_table): Update declaration. * testsuite/binary_unittest.cc (gold_testsuite): Remove target parameter. Change all callers. Clear parameter target. (Binary_test): Test target here. * testsuite/object_unittest.cc (gold_testsuite): Remove target_test_pointer parameter. Change all callers. (Object_test): Test target here.
2009-10-01 00:21:13 +02:00
parameters_force_valid_target();
const Target& target(parameters->target());
* object.h (class Object): Remove target_ field, and target, sized_target, and set_target methods. (Object::sized_target): Remove. (class Sized_relobj): Update declarations. Remove sized_target. * object.cc (Sized_relobj::setup): Remove target parameter. Change all callers. (Input_objects::add_object): Don't do anything with the target. (make_elf_sized_object): Add punconfigured parameter. Change all callers. Set or test parameter target. * dynobj.cc (Sized_dynobj::target): Remove target parameter. Change all callers. * parameters.cc (Parameters::set_target): Change parameter type to be non-const. (Parameters::default_target): Remove. (set_parameters_target): Change parameter type to be non-const. (parameters_force_valid_target): New function. (parameters_clear_target): New function. * parameters.h (class Parameters): Update declarations. Remove default_target method. Add sized_target and clear_target methods. Change target_ to be non-const. (set_parameters_target): Update declaration. (parameters_force_valid_target): Declare. (parameters_clear_target): Declare. * readsyms.cc (Read_symbols::do_read_symbols): Pass punconfigured as NULL if we aren't searching. (Add_symbols::run): Don't check for compatible target. * fileread.cc (Input_file::open_binary): Call parameters_force_valid_target. * gold.cc (queue_middle_tasks): Likewise. * plugin.cc (make_sized_plugin_object): Likewise. Don't call set_target on object. * dynobj.h (class Sized_dynobj): Update declarations. * archive.cc (Archive::get_elf_object_for_member): Return NULL if make_elf_object returns NULL. (Archive::include_member): Don't check whether object target is compatible. * output.cc (Output_section::add_input_section): Get target from parameters. (Output_section::relax_input_section): Likewise. * reloc.cc (Sized_relobj::do_gc_process_relocs): Get target from parameters. (Sized_relobj::do_scan_relocs): Likewise. (Sized_relobj::relocate_sections): Likewise. * resolve.cc (Symbol_table::resolve): Likewise. * symtab.cc (Symbol_table::wrap_symbol): Likewise. Remove object parameter. Change all callers. (Symbol_table::add_from_object): Get target from parameters. (Symbol_table::add_from_relobj): Don't check object target. (Symbol_table::add_from_dynobj): Likewise. (Symbol_table::define_special_symbol): Get target from parameters. * symtab.h (class Symbol_table): Update declaration. * testsuite/binary_unittest.cc (gold_testsuite): Remove target parameter. Change all callers. Clear parameter target. (Binary_test): Test target here. * testsuite/object_unittest.cc (gold_testsuite): Remove target_test_pointer parameter. Change all callers. (Object_test): Test target here.
2009-10-01 00:21:13 +02:00
Binary_to_elf binary_to_elf(target.machine_code(),
target.get_size(),
target.is_big_endian(),
name);
if (!binary_to_elf.convert(task))
return false;
return this->file_.open(task, name, binary_to_elf.converted_data_leak(),
binary_to_elf.converted_size());
}
2006-08-05 01:10:59 +02:00
} // End namespace gold.