// parameters.cc -- general parameters for a link using gold
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// parameters.cc -- general parameters for a link using gold
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// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
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// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
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// Written by Ian Lance Taylor <iant@google.com>.
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// Written by Ian Lance Taylor <iant@google.com>.
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// This file is part of gold.
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// This file is part of gold.
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// This program is free software; you can redistribute it and/or modify
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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// MA 02110-1301, USA.
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#include "gold.h"
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#include "gold.h"
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#include "debug.h"
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#include "debug.h"
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#include "options.h"
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#include "options.h"
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#include "target.h"
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#include "target.h"
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#include "target-select.h"
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#include "target-select.h"
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namespace gold
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namespace gold
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{
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{
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void
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void
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Parameters::set_errors(Errors* errors)
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Parameters::set_errors(Errors* errors)
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{
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{
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gold_assert(this->errors_ == NULL);
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gold_assert(this->errors_ == NULL);
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this->errors_ = errors;
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this->errors_ = errors;
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}
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}
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void
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void
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Parameters::set_options(const General_options* options)
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Parameters::set_options(const General_options* options)
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{
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{
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gold_assert(!this->options_valid());
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gold_assert(!this->options_valid());
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this->options_ = options;
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this->options_ = options;
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// For speed, we convert the options() debug var from a string to an
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// For speed, we convert the options() debug var from a string to an
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// enum (from debug.h).
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// enum (from debug.h).
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this->debug_ = debug_string_to_enum(this->options().debug());
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this->debug_ = debug_string_to_enum(this->options().debug());
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// If --verbose is set, it acts as "--debug=files".
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// If --verbose is set, it acts as "--debug=files".
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if (options->verbose())
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if (options->verbose())
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this->debug_ |= DEBUG_FILES;
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this->debug_ |= DEBUG_FILES;
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}
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}
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void
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void
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Parameters::set_doing_static_link(bool doing_static_link)
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Parameters::set_doing_static_link(bool doing_static_link)
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{
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{
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gold_assert(!this->doing_static_link_valid_);
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gold_assert(!this->doing_static_link_valid_);
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this->doing_static_link_ = doing_static_link;
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this->doing_static_link_ = doing_static_link;
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this->doing_static_link_valid_ = true;
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this->doing_static_link_valid_ = true;
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}
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}
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void
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void
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Parameters::set_target(Target* target)
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Parameters::set_target(Target* target)
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{
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{
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if (!this->target_valid())
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if (!this->target_valid())
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this->target_ = target;
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this->target_ = target;
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else
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else
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gold_assert(target == this->target_);
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gold_assert(target == this->target_);
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}
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}
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// Return whether TARGET is compatible with the target we are using.
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// Return whether TARGET is compatible with the target we are using.
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bool
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bool
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Parameters::is_compatible_target(const Target* target) const
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Parameters::is_compatible_target(const Target* target) const
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{
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{
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if (this->target_ == NULL)
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if (this->target_ == NULL)
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return true;
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return true;
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return target == this->target_;
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return target == this->target_;
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}
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}
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Parameters::Target_size_endianness
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Parameters::Target_size_endianness
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Parameters::size_and_endianness() const
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Parameters::size_and_endianness() const
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{
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{
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if (this->target().get_size() == 32)
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if (this->target().get_size() == 32)
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{
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{
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if (!this->target().is_big_endian())
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if (!this->target().is_big_endian())
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{
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{
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#ifdef HAVE_TARGET_32_LITTLE
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#ifdef HAVE_TARGET_32_LITTLE
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return TARGET_32_LITTLE;
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return TARGET_32_LITTLE;
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#else
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#else
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gold_unreachable();
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gold_unreachable();
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#endif
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#endif
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}
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}
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else
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else
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{
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{
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#ifdef HAVE_TARGET_32_BIG
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#ifdef HAVE_TARGET_32_BIG
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return TARGET_32_BIG;
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return TARGET_32_BIG;
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#else
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#else
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gold_unreachable();
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gold_unreachable();
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#endif
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#endif
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}
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}
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}
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}
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else if (parameters->target().get_size() == 64)
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else if (parameters->target().get_size() == 64)
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{
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{
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if (!parameters->target().is_big_endian())
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if (!parameters->target().is_big_endian())
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{
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{
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#ifdef HAVE_TARGET_64_LITTLE
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#ifdef HAVE_TARGET_64_LITTLE
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return TARGET_64_LITTLE;
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return TARGET_64_LITTLE;
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#else
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#else
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gold_unreachable();
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gold_unreachable();
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#endif
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#endif
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}
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}
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else
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else
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{
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{
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#ifdef HAVE_TARGET_64_BIG
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#ifdef HAVE_TARGET_64_BIG
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return TARGET_64_BIG;
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return TARGET_64_BIG;
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#else
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#else
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gold_unreachable();
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gold_unreachable();
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#endif
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#endif
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}
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}
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}
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}
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else
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else
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gold_unreachable();
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gold_unreachable();
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}
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}
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// Our local version of the variable, which is not const.
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// Our local version of the variable, which is not const.
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static Parameters static_parameters;
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static Parameters static_parameters;
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// The global variable.
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// The global variable.
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const Parameters* parameters = &static_parameters;
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const Parameters* parameters = &static_parameters;
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void
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void
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set_parameters_errors(Errors* errors)
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set_parameters_errors(Errors* errors)
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{ static_parameters.set_errors(errors); }
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{ static_parameters.set_errors(errors); }
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void
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void
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set_parameters_options(const General_options* options)
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set_parameters_options(const General_options* options)
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{ static_parameters.set_options(options); }
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{ static_parameters.set_options(options); }
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void
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void
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set_parameters_target(Target* target)
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set_parameters_target(Target* target)
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{ static_parameters.set_target(target); }
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{ static_parameters.set_target(target); }
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void
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void
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set_parameters_doing_static_link(bool doing_static_link)
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set_parameters_doing_static_link(bool doing_static_link)
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{ static_parameters.set_doing_static_link(doing_static_link); }
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{ static_parameters.set_doing_static_link(doing_static_link); }
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// Force the target to be valid by using the default. Use the
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// Force the target to be valid by using the default. Use the
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// --oformat option is set; this supports the x86_64 kernel build,
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// --oformat option is set; this supports the x86_64 kernel build,
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// which converts a binary file to an object file using -r --format
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// which converts a binary file to an object file using -r --format
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// binary --oformat elf32-i386 foo.o. Otherwise use the configured
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// binary --oformat elf32-i386 foo.o. Otherwise use the configured
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// default.
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// default.
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void
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void
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parameters_force_valid_target()
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parameters_force_valid_target()
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{
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{
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if (parameters->target_valid())
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if (parameters->target_valid())
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return;
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return;
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gold_assert(parameters->options_valid());
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gold_assert(parameters->options_valid());
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if (parameters->options().user_set_oformat())
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if (parameters->options().user_set_oformat())
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{
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{
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Target* target = select_target_by_name(parameters->options().oformat());
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Target* target = select_target_by_name(parameters->options().oformat());
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if (target != NULL)
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if (target != NULL)
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{
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{
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set_parameters_target(target);
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set_parameters_target(target);
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return;
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return;
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}
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}
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gold_error(_("unrecognized output format %s"),
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gold_error(_("unrecognized output format %s"),
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parameters->options().oformat());
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parameters->options().oformat());
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}
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}
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// The GOLD_DEFAULT_xx macros are defined by the configure script.
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// The GOLD_DEFAULT_xx macros are defined by the configure script.
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Target* target = select_target(elfcpp::GOLD_DEFAULT_MACHINE,
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Target* target = select_target(elfcpp::GOLD_DEFAULT_MACHINE,
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GOLD_DEFAULT_SIZE,
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GOLD_DEFAULT_SIZE,
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GOLD_DEFAULT_BIG_ENDIAN,
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GOLD_DEFAULT_BIG_ENDIAN,
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elfcpp::GOLD_DEFAULT_OSABI,
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elfcpp::GOLD_DEFAULT_OSABI,
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0);
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0);
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gold_assert(target != NULL);
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gold_assert(target != NULL);
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set_parameters_target(target);
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set_parameters_target(target);
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}
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}
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// Clear the current target, for testing.
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// Clear the current target, for testing.
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void
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void
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parameters_clear_target()
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parameters_clear_target()
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{
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{
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static_parameters.clear_target();
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static_parameters.clear_target();
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}
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}
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} // End namespace gold.
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} // End namespace gold.
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