87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/* Generate from machine description:
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a series of #define statements, one for each constant named in
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a (define_constants ...) pattern.
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Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2001, 2003
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC 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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GCC 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 GCC; 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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/* This program does not use gensupport.c because it does not need to
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look at insn patterns, only (define_constants), and we want to
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minimize dependencies. */
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#include "bconfig.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "rtl.h"
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#include "errors.h"
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#include "gensupport.h"
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static int print_md_constant (void **, void *);
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/* Called via traverse_md_constants; emit a #define for
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the current constant definition. */
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static int
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print_md_constant (void **slot, void *info)
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{
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struct md_constant *def = *slot;
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FILE *file = info;
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fprintf (file, "#define %s %s\n", def->name, def->value);
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return 1;
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}
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int
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main (int argc, char **argv)
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{
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int dummy1, dummy2;
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rtx desc;
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progname = "genconstants";
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if (argc <= 1)
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fatal ("no input file name");
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if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
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return (FATAL_EXIT_CODE);
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/* Scan and discard the entire file. This has the side effect
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of loading up the constants table that we wish to scan. */
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do
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desc = read_md_rtx (&dummy1, &dummy2);
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while (desc);
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puts ("/* Generated automatically by the program `genconstants'");
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puts (" from the machine description file `md'. */\n");
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puts ("#ifndef GCC_INSN_CONSTANTS_H");
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puts ("#define GCC_INSN_CONSTANTS_H\n");
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traverse_md_constants (print_md_constant, stdout);
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puts ("\n#endif /* GCC_INSN_CONSTANTS_H */");
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if (ferror (stdout) || fflush (stdout) || fclose (stdout))
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return FATAL_EXIT_CODE;
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return SUCCESS_EXIT_CODE;
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}
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