1  /* LTO IL compression streams.
       2  
       3     Copyright (C) 2009-2023 Free Software Foundation, Inc.
       4     Contributed by Simon Baldwin <simonb@google.com>
       5  
       6  This file is part of GCC.
       7  
       8  GCC is free software; you can redistribute it and/or modify it
       9  under the terms of the GNU General Public License as published by
      10  the Free Software Foundation; either version 3, or (at your option)
      11  any later version.
      12  
      13  GCC is distributed in the hope that it will be useful, but WITHOUT
      14  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      15  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
      16  License for more details.
      17  
      18  You should have received a copy of the GNU General Public License
      19  along with GCC; see the file COPYING3.  If not see
      20  <http://www.gnu.org/licenses/>.  */
      21  
      22  #ifndef GCC_LTO_COMPRESS_H
      23  #define GCC_LTO_COMPRESS_H
      24  
      25  struct lto_compression_stream;
      26  
      27  /* In lto-compress.cc.  */
      28  extern struct lto_compression_stream
      29    *lto_start_compression (void (*callback) (const char *, unsigned, void *),
      30  			  void *opaque);
      31  extern void lto_compress_block (struct lto_compression_stream *stream,
      32  				const char *base, size_t num_chars);
      33  extern void lto_end_compression (struct lto_compression_stream *stream);
      34  
      35  extern struct lto_compression_stream
      36    *lto_start_uncompression (void (*callback) (const char *, unsigned, void *),
      37  			    void *opaque);
      38  extern void lto_uncompress_block (struct lto_compression_stream *stream,
      39  				  const char *base, size_t num_chars);
      40  extern void lto_end_uncompression (struct lto_compression_stream *stream,
      41  				  lto_compression compression);
      42  
      43  #endif /* GCC_LTO_COMPRESS_H  */