root/src/gauche/extend.h

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INCLUDED FROM


   1 /*
   2  * extend.h - Stuff useful to write Gauche extension
   3  *
   4  *   Copyright (c) 2000-2003 Shiro Kawai, All rights reserved.
   5  * 
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  * 
  10  *   1. Redistributions of source code must retain the above copyright
  11  *      notice, this list of conditions and the following disclaimer.
  12  *
  13  *   2. Redistributions in binary form must reproduce the above copyright
  14  *      notice, this list of conditions and the following disclaimer in the
  15  *      documentation and/or other materials provided with the distribution.
  16  *
  17  *   3. Neither the name of the authors nor the names of its contributors
  18  *      may be used to endorse or promote products derived from this
  19  *      software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  27  *   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  28  *   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  29  *   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  30  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  31  *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  *  $Id: extend.h,v 1.6 2005/10/26 06:00:44 shirok Exp $
  34  */
  35 
  36 #ifndef GAUCHE_EXTEND_H
  37 #define GAUCHE_EXTEND_H
  38 
  39 #ifndef GAUCHE_H
  40 #include <gauche.h>
  41 #endif
  42 
  43 #ifdef __cplusplus
  44 extern "C" {
  45 #endif
  46 
  47 #ifndef __CYGWIN__
  48 #define SCM_INIT_EXTENSION(name)                                        \
  49    do {                                                                 \
  50        extern void *SCM_CPP_CAT(Scm__datastart_, name);                 \
  51        extern void *SCM_CPP_CAT(Scm__dataend_, name);                   \
  52        extern void *SCM_CPP_CAT(Scm__bssstart_, name);                  \
  53        extern void *SCM_CPP_CAT(Scm__bssend_, name);                    \
  54        Scm_RegisterDL((void*)&SCM_CPP_CAT(Scm__datastart_, name),       \
  55                       (void*)&SCM_CPP_CAT(Scm__dataend_, name),         \
  56                       (void*)&SCM_CPP_CAT(Scm__bssstart_, name),        \
  57                       (void*)&SCM_CPP_CAT(Scm__bssend_, name));         \
  58    } while (0)
  59 #else  /* __CYGWIN__ */
  60 /* Cygwin's loader rearranges placement of bss, so Scm__bssstart_ and
  61    Scm__bssend_ are no longer useful to find bss area.  It defines
  62    _bss_start__ and _bss_end__ for each DLLs so we can use it.
  63    Note that these symbols are declared in gc.h. */
  64 #define SCM_INIT_EXTENSION(name)                                        \
  65     do {                                                                \
  66        extern void *SCM_CPP_CAT(Scm__datastart_, name);                 \
  67        extern void *SCM_CPP_CAT(Scm__dataend_, name);                   \
  68        Scm_RegisterDL((void*)&SCM_CPP_CAT(Scm__datastart_, name),       \
  69                       (void*)&SCM_CPP_CAT(Scm__dataend_, name),         \
  70                       (void*)&_bss_start__,                             \
  71                       (void*)&_bss_end__);                              \
  72     } while (0)
  73 #endif /* __CYGWIN__ */
  74 
  75 #ifdef __cplusplus
  76 }
  77 #endif
  78 
  79 #endif /* GAUCHE_EXTEND_H */

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