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Annotation of GNUtools/cc/bi-opcode.c, revision 1.1.1.1

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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