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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [gold/] [compressed_output.h] - Blame information for rev 280

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// compressed_output.h -- compressed output sections for gold  -*- C++ -*-
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// Copyright 2007, 2008 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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// We support compressing .debug_* sections on output.  (And,
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// potentially one day, other sections.)  This is a form of
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// relaxation.  This file adds support for merging and emitting the
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// compressed sections.
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#ifndef GOLD_COMPRESSED_OUTPUT_H
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#define GOLD_COMPRESSED_OUTPUT_H
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#include <string>
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#include "output.h"
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namespace gold
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{
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class General_options;
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// This is used for a section whose data should be compressed.  It is
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// a regular Output_section which computes its contents into a buffer
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// and then postprocesses it.
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class Output_compressed_section : public Output_section
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{
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 public:
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  Output_compressed_section(const General_options* options,
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                            const char* name, elfcpp::Elf_Word flags,
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                            elfcpp::Elf_Xword type)
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    : Output_section(name, flags, type),
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      options_(options)
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  { this->set_requires_postprocessing(); }
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 protected:
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  // Set the final data size.
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  void
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  set_final_data_size();
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  // Write out the compressed contents.
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  void
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  do_write(Output_file*);
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 private:
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  // The options--this includes the compression type.
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  const General_options* options_;
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  // The compressed data.
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  unsigned char* data_;
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  // The new section name if we do compress.
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  std::string new_section_name_;
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};
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} // End namespace gold.
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#endif // !defined(GOLD_COMPRESSED_OUTPUT_H)

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