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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [gold/] [parameters.cc] - Rev 246
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// 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(Target* target) { if (!this->target_valid()) this->target_ = target; else gold_assert(target == this->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(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); } // Force the target to be valid by using the default. Use the // --oformat option is set; this supports the x86_64 kernel build, // which converts a binary file to an object file using -r --format // binary --oformat elf32-i386 foo.o. Otherwise use the configured // default. void parameters_force_valid_target() { if (parameters->target_valid()) return; gold_assert(parameters->options_valid()); if (parameters->options().user_set_oformat()) { Target* target = select_target_by_name(parameters->options().oformat()); if (target != NULL) { set_parameters_target(target); return; } gold_error(_("unrecognized output format %s"), parameters->options().oformat()); } // The GOLD_DEFAULT_xx macros are defined by the configure script. Target* target = select_target(elfcpp::GOLD_DEFAULT_MACHINE, GOLD_DEFAULT_SIZE, GOLD_DEFAULT_BIG_ENDIAN, elfcpp::GOLD_DEFAULT_OSABI, 0); gold_assert(target != NULL); set_parameters_target(target); } // Clear the current target, for testing. void parameters_clear_target() { static_parameters.clear_target(); } } // End namespace gold.
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