| // parameters.cc -- general parameters for a link using gold |
| |
| // Copyright 2006, 2007, 2008 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. |
| |
| #include "gold.h" |
| |
| #include "debug.h" |
| #include "options.h" |
| #include "target.h" |
| #include "target-select.h" |
| |
| namespace gold |
| { |
| |
| void |
| Parameters::set_errors(Errors* errors) |
| { |
| gold_assert(this->errors_ == NULL); |
| this->errors_ = errors; |
| } |
| |
| void |
| Parameters::set_options(const General_options* options) |
| { |
| gold_assert(!this->options_valid()); |
| this->options_ = options; |
| // For speed, we convert the options() debug var from a string to an |
| // enum (from debug.h). |
| this->debug_ = debug_string_to_enum(this->options().debug()); |
| // If --verbose is set, it acts as "--debug=files". |
| if (options->verbose()) |
| this->debug_ |= DEBUG_FILES; |
| } |
| |
| void |
| Parameters::set_doing_static_link(bool doing_static_link) |
| { |
| gold_assert(!this->doing_static_link_valid_); |
| this->doing_static_link_ = doing_static_link; |
| this->doing_static_link_valid_ = true; |
| } |
| |
| void |
| Parameters::set_target(const Target* target) |
| { |
| if (!this->target_valid()) |
| this->target_ = target; |
| else |
| gold_assert(target == this->target_); |
| } |
| |
| // The x86_64 kernel build converts a binary file to an object file |
| // using -r --format binary --oformat elf32-i386 foo.o. In order to |
| // support that for gold we support determining the default target |
| // choice from the output format. We recognize names that the GNU |
| // linker uses. |
| |
| const Target& |
| Parameters::default_target() const |
| { |
| gold_assert(this->options_valid()); |
| if (this->options().user_set_oformat()) |
| { |
| const Target* target |
| = select_target_by_name(this->options().oformat()); |
| if (target != NULL) |
| return *target; |
| |
| gold_error(_("unrecognized output format %s"), |
| this->options().oformat()); |
| } |
| |
| // The GOLD_DEFAULT_xx macros are defined by the configure script. |
| const Target* target = select_target(elfcpp::GOLD_DEFAULT_MACHINE, |
| GOLD_DEFAULT_SIZE, |
| GOLD_DEFAULT_BIG_ENDIAN, |
| elfcpp::GOLD_DEFAULT_OSABI, |
| 0); |
| gold_assert(target != NULL); |
| return *target; |
| } |
| |
| // Return whether TARGET is compatible with the target we are using. |
| |
| bool |
| Parameters::is_compatible_target(const Target* target) const |
| { |
| if (this->target_ == NULL) |
| return true; |
| return target == this->target_; |
| } |
| |
| Parameters::Target_size_endianness |
| Parameters::size_and_endianness() const |
| { |
| if (this->target().get_size() == 32) |
| { |
| if (!this->target().is_big_endian()) |
| { |
| #ifdef HAVE_TARGET_32_LITTLE |
| return TARGET_32_LITTLE; |
| #else |
| gold_unreachable(); |
| #endif |
| } |
| else |
| { |
| #ifdef HAVE_TARGET_32_BIG |
| return TARGET_32_BIG; |
| #else |
| gold_unreachable(); |
| #endif |
| } |
| } |
| else if (parameters->target().get_size() == 64) |
| { |
| if (!parameters->target().is_big_endian()) |
| { |
| #ifdef HAVE_TARGET_64_LITTLE |
| return TARGET_64_LITTLE; |
| #else |
| gold_unreachable(); |
| #endif |
| } |
| else |
| { |
| #ifdef HAVE_TARGET_64_BIG |
| return TARGET_64_BIG; |
| #else |
| gold_unreachable(); |
| #endif |
| } |
| } |
| else |
| gold_unreachable(); |
| } |
| |
| |
| // Our local version of the variable, which is not const. |
| |
| static Parameters static_parameters; |
| |
| // The global variable. |
| |
| const Parameters* parameters = &static_parameters; |
| |
| void |
| set_parameters_errors(Errors* errors) |
| { static_parameters.set_errors(errors); } |
| |
| void |
| set_parameters_options(const General_options* options) |
| { static_parameters.set_options(options); } |
| |
| void |
| set_parameters_target(const Target* target) |
| { static_parameters.set_target(target); } |
| |
| void |
| set_parameters_doing_static_link(bool doing_static_link) |
| { static_parameters.set_doing_static_link(doing_static_link); } |
| |
| } // End namespace gold. |