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Annotation of GNUtools/cc/bi-opcode.c, revision 1.1

1.1     ! root        1: /* Utility to generate opcode list from bytecode definition.
        !             2:    Copyright (C) 1993 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GNU CC.
        !             5: 
        !             6: GNU CC is free software; you can redistribute it and/or modify
        !             7: it under the terms of the GNU General Public License as published by
        !             8: the Free Software Foundation; either version 2, or (at your option)
        !             9: any later version.
        !            10: 
        !            11: GNU CC is distributed in the hope that it will be useful,
        !            12: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            14: GNU General Public License for more details.
        !            15: 
        !            16: You should have received a copy of the GNU General Public License
        !            17: along with GNU CC; see the file COPYING.  If not, write to
        !            18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            19: 
        !            20: #include <stdio.h>
        !            21: #include "hconfig.h"
        !            22: #include "bi-defs.h"
        !            23: 
        !            24: int
        !            25: main(argc, argv)
        !            26:      int argc;
        !            27:      char **argv;
        !            28: {
        !            29:   struct def *d;
        !            30:   struct variation *v;
        !            31:   int i;
        !            32: 
        !            33:   yyparse();
        !            34:   reverse();
        !            35: 
        !            36: 
        !            37:   puts ("/* This file is automatically generated from bytecode.def, do not make\n\
        !            38: any changes here. Instead edit bytecode.def and type ``make''. */\n\
        !            39: enum bytecode_opcode\n{");
        !            40: 
        !            41:   i = 0;
        !            42:   for (d = defs; d; d = d->next)
        !            43:     for (v = d->variations; v; v = v->next)
        !            44:       printf ("  %s%s,\n", d->basename, v->name, i++);
        !            45: 
        !            46:   puts ("  LAST_AND_UNUSED_OPCODE\n};");
        !            47: 
        !            48:   if (i > 256)
        !            49:     fprintf (stderr, "%s: warning, number of opcodes is %d\n", *argv, i);
        !            50:   else
        !            51:     fprintf (stderr, "(Number of opcodes is %d)\n", i);
        !            52: 
        !            53:   fflush (stdout);
        !            54:   exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
        !            55:   /* NOTREACHED */
        !            56:   return 0;
        !            57: }
        !            58: 
        !            59: /* Safely allocate NBYTES bytes of memory. Returns pointer to block of
        !            60:    memory. */
        !            61: char *
        !            62: xmalloc (nbytes)
        !            63:      int nbytes;
        !            64: {
        !            65:   char *tmp = (char *) malloc (nbytes);
        !            66:   
        !            67:   if (!tmp)
        !            68:     {
        !            69:       fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n", nbytes);
        !            70:       exit (FATAL_EXIT_CODE);
        !            71:     }
        !            72: 
        !            73:   return tmp;
        !            74: }

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