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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [tools/] [cpu/] [unix/] [gensize.c] - Blame information for rev 867

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1 30 unneback
/*
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 *  gensize.c
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 *
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 *  This file generates the file unixsize.h
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 *
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 *  NOTE:  It only prints the minimal information required.
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: gensize.c,v 1.2 2001-09-27 12:02:54 chris Exp $
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 *
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 */
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/*
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 *  This feels like a very crude way to determine if we are on a Solaris
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 *  host but it does work.
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 */
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#if defined(__sun__) && defined(__sparc__) && \
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    defined(__unix__) && defined(__svr4__)
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#undef  _POSIX_C_SOURCE
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#define _POSIX_C_SOURCE 3
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#undef  __STRICT_ANSI__
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#endif
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#include <stdio.h>
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#include <unistd.h>
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#include <setjmp.h>
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#include <signal.h>
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typedef struct {
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  jmp_buf     regs;
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  int         isr_level;
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  int         pad[4]; /* just in case */
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} Context_Control;
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int main(
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  int argc,
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  char **argv
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)
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{
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  Context_Control *cc = 0;
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  /*
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   * Print the file header
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   */
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printf(
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  "/*  unixsize.h\n"
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  " *\n"
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  " *  This include file contans the size of the context control block\n"
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  " *  C data structure.  This structure must be defined in such a way\n"
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  " *  that files NOT including the native header files can work.\n"
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  " *\n"
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  " *  NOTE:  THIS FILE IS AUTOMATICALLY GENERATED!!!!\n"
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  " *         DO NOT EDIT THIS BY HAND!!!!\n"
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  " *\n"
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  " *  COPYRIGHT (c) 1989-1999.\n"
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  " *  On-Line Applications Research Corporation (OAR).\n"
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  " *\n"
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  " *  The license and distribution terms for this file may be\n"
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  " *  found in the file LICENSE in this distribution or at\n"
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  " *  http://www.OARcorp.com/rtems/license.html.\n"
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  " */\n"
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  "\n"
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  "#ifndef __UNIXSIZE_h\n"
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  "#define __UNIXSIZE_h\n"
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  "\n"
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);
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#define PRINT_IT( STRING, NUMBER ) \
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  printf( "#define\t%s\t0x%x\t\t/* %d */\n", \
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          STRING, \
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          NUMBER, \
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          NUMBER );
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#define PRINT_SIZE( STRING, NUMBER ) \
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  printf( "#define\t%s\t0x%x\t\t/* %d */\n", \
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          STRING, \
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          NUMBER, \
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          NUMBER );
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#define PRINT_COMMENT( STRING ) \
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  printf(       \
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    "\n"        \
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    "/*\n"      \
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    " * " STRING "\n" \
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    " */\n"     \
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    "\n"        \
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  );
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  PRINT_COMMENT("Context_Control information");
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  PRINT_SIZE("CPU_CONTEXT_SIZE_IN_BYTES", sizeof( Context_Control ) );
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  PRINT_SIZE("CPU_CONTEXT_REGISTERS_OFFSET_IN_BYTES", (int) &cc->regs );
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  PRINT_SIZE("CPU_CONTEXT_SIGNALS_OFFSET_IN_BYTES", (int) &cc->isr_level );
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  /*
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   *  Print the end of file stuff
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   */
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   printf(
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    "\n"
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    "#endif    /* __UNIXSIZE_h  */\n"
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    "\n"
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    "/* end of include file */\n"
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  );
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  return 0;
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}
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