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/*

 *  gensize.c

 *

 *  This file generates the file unixsize.h

 *

 *  NOTE:  It only prints the minimal information required.

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: gensize.c,v 1.2 2001-09-27 12:02:54 chris Exp $

 *

 */

/*

 *  This feels like a very crude way to determine if we are on a Solaris

 *  host but it does work.

 */

#if defined(__sun__) && defined(__sparc__) && \

    defined(__unix__) && defined(__svr4__)

#undef  _POSIX_C_SOURCE

#define _POSIX_C_SOURCE 3

#undef  __STRICT_ANSI__

#endif

#include <stdio.h>

#include <unistd.h>

#include <setjmp.h>

#include <signal.h>

typedef struct {

  jmp_buf     regs;

  int         isr_level;

  int         pad[4]; /* just in case */

} Context_Control;

int main(

  int argc,

  char **argv

)

{

  Context_Control *cc = 0;

  /*

   * Print the file header

   */

printf(

  "/*  unixsize.h\n"

  " *\n"

  " *  This include file contans the size of the context control block\n"

  " *  C data structure.  This structure must be defined in such a way\n"

  " *  that files NOT including the native header files can work.\n"

  " *\n"

  " *  NOTE:  THIS FILE IS AUTOMATICALLY GENERATED!!!!\n"

  " *         DO NOT EDIT THIS BY HAND!!!!\n"

  " *\n"

  " *  COPYRIGHT (c) 1989-1999.\n"

  " *  On-Line Applications Research Corporation (OAR).\n"

  " *\n"

  " *  The license and distribution terms for this file may be\n"

  " *  found in the file LICENSE in this distribution or at\n"

  " *  http://www.OARcorp.com/rtems/license.html.\n"

  " */\n"

  "\n"

  "#ifndef __UNIXSIZE_h\n"

  "#define __UNIXSIZE_h\n"

  "\n"

);

#define PRINT_IT( STRING, NUMBER ) \

  printf( "#define\t%s\t0x%x\t\t/* %d */\n", \

          STRING, \

          NUMBER, \

          NUMBER );

#define PRINT_SIZE( STRING, NUMBER ) \

  printf( "#define\t%s\t0x%x\t\t/* %d */\n", \

          STRING, \

          NUMBER, \

          NUMBER );

#define PRINT_COMMENT( STRING ) \

  printf(       \

    "\n"        \

    "/*\n"      \

    " * " STRING "\n" \

    " */\n"     \

    "\n"        \

  );

  PRINT_COMMENT("Context_Control information");

  PRINT_SIZE("CPU_CONTEXT_SIZE_IN_BYTES", sizeof( Context_Control ) );

  PRINT_SIZE("CPU_CONTEXT_REGISTERS_OFFSET_IN_BYTES", (int) &cc->regs );

  PRINT_SIZE("CPU_CONTEXT_SIGNALS_OFFSET_IN_BYTES", (int) &cc->isr_level );

  /*

   *  Print the end of file stuff

   */

   printf(

    "\n"

    "#endif    /* __UNIXSIZE_h  */\n"

    "\n"

    "/* end of include file */\n"

  );

  return 0;

}