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104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
// freebsd.h -- FreeBSD support for gold -*- C++ -*-
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// Copyright (C) 2009-2020 Free Software Foundation, Inc.
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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 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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// 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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// 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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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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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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// 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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// MA 02110-1301, USA.
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#include "target.h"
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#include "target-select.h"
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#ifndef GOLD_FREEBSD_H
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#define GOLD_FREEBSD_H
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namespace gold
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{
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// FreeBSD 4.1 and later wants the EI_OSABI field in the ELF header to
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// be set to ELFOSABI_FREEBSD. This is a target selector for targets
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// which permit combining both FreeBSD and non-FreeBSD object files.
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class Target_selector_freebsd : public Target_selector
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{
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public:
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Target_selector_freebsd(int machine, int size, bool is_big_endian,
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const char* bfd_name,
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const char* freebsd_bfd_name,
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const char* emulation)
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: Target_selector(machine, size, is_big_endian, NULL, emulation),
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bfd_name_(bfd_name), freebsd_bfd_name_(freebsd_bfd_name)
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{ }
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protected:
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// If we see a FreeBSD input file, mark the output file as using
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// FreeBSD.
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virtual Target*
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do_recognize(Input_file*, off_t, int, int osabi, int)
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{
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Target* ret = this->instantiate_target();
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if (osabi == elfcpp::ELFOSABI_FREEBSD)
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ret->set_osabi(static_cast<elfcpp::ELFOSABI>(osabi));
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return ret;
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}
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// Recognize two names.
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virtual Target*
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do_recognize_by_bfd_name(const char* name)
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{
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if (strcmp(name, this->bfd_name_) == 0)
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return this->instantiate_target();
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else if (strcmp(name, this->freebsd_bfd_name_) == 0)
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{
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Target* ret = this->instantiate_target();
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ret->set_osabi(elfcpp::ELFOSABI_FREEBSD);
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return ret;
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}
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else
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return NULL;
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}
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// Print both names in --help output.
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virtual void
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do_supported_bfd_names(std::vector<const char*>* names)
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{
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names->push_back(this->bfd_name_);
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names->push_back(this->freebsd_bfd_name_);
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}
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// Return appropriate BFD name.
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virtual const char*
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do_target_bfd_name(const Target* target)
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{
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if (!this->is_our_target(target))
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return NULL;
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return (target->osabi() == elfcpp::ELFOSABI_FREEBSD
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? this->freebsd_bfd_name_
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: this->bfd_name_);
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}
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private:
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// The BFD name for the non-Freebsd target.
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const char* bfd_name_;
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// The BFD name for the Freebsd target.
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const char* freebsd_bfd_name_;
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};
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} // end namespace gold
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#endif // !defined(GOLD_FREEBSD_H)
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