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https://github.com/freebsd/freebsd-src
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79 lines
2 KiB
C
79 lines
2 KiB
C
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/* Utility to generate opcode list from bytecode definition.
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Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdio.h>
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#include "hconfig.h"
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#include "bi-defs.h"
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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struct def *d;
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struct variation *v;
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int i;
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yyparse();
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reverse();
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printf ("/* This file is automatically generated from bytecode.def,\n");
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printf ("do not make any changes here. Instead edit bytecode.def. */\n\n");
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printf ("enum bytecode_opcode\n{");
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i = 0;
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for (d = defs; d; d = d->next)
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for (v = d->variations; v; v = v->next)
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{
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printf (" %s%s,\n", d->basename, v->name);
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++i;
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}
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puts (" LAST_AND_UNUSED_OPCODE\n};");
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if (i > 256)
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fprintf (stderr, "%s: warning, number of opcodes is %d\n", *argv, i);
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else
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fprintf (stderr, "(Number of opcodes is %d)\n", i);
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fflush (stdout);
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exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
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/* NOTREACHED */
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return 0;
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}
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/* Safely allocate NBYTES bytes of memory. Returns pointer to block of
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memory. */
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char *
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xmalloc (nbytes)
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int nbytes;
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{
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char *tmp = (char *) malloc (nbytes);
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if (!tmp)
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{
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fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n", nbytes);
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exit (FATAL_EXIT_CODE);
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}
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return tmp;
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}
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