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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gold/] [freebsd.h] - Blame information for rev 299

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// freebsd.h -- FreeBSD support for gold    -*- C++ -*-
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// Copyright 2009, 2011 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(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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