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1 /* Generate from machine description:
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2 a series of #define statements, one for each constant named in
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3 a (define_constants ...) pattern.
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4
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5 Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2001, 2003, 2004,
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6 2007 Free Software Foundation, Inc.
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7
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8 This file is part of GCC.
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9
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10 GCC is free software; you can redistribute it and/or modify
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11 it under the terms of the GNU General Public License as published by
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12 the Free Software Foundation; either version 3, or (at your option)
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13 any later version.
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14
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15 GCC is distributed in the hope that it will be useful,
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16 but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 GNU General Public License for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with GCC; see the file COPYING3. If not see
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22 <http://www.gnu.org/licenses/>. */
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23
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24 /* This program does not use gensupport.c because it does not need to
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25 look at insn patterns, only (define_constants), and we want to
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26 minimize dependencies. */
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27
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28 #include "bconfig.h"
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29 #include "system.h"
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30 #include "coretypes.h"
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31 #include "tm.h"
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32 #include "rtl.h"
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33 #include "errors.h"
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34 #include "gensupport.h"
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35
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36 /* Called via traverse_md_constants; emit a #define for
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37 the current constant definition. */
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38
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39 static int
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40 print_md_constant (void **slot, void *info)
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41 {
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42 struct md_constant *def = (struct md_constant *) *slot;
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43 FILE *file = (FILE *) info;
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44
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45 fprintf (file, "#define %s %s\n", def->name, def->value);
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46 return 1;
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47 }
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48
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49 int
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50 main (int argc, char **argv)
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51 {
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52 progname = "genconstants";
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53
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54 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
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55 return (FATAL_EXIT_CODE);
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56
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57 /* Initializing the MD reader has the side effect of loading up
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58 the constants table that we wish to scan. */
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59
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60 puts ("/* Generated automatically by the program `genconstants'");
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61 puts (" from the machine description file `md'. */\n");
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62 puts ("#ifndef GCC_INSN_CONSTANTS_H");
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63 puts ("#define GCC_INSN_CONSTANTS_H\n");
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64
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65 traverse_md_constants (print_md_constant, stdout);
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66
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67 puts ("\n#endif /* GCC_INSN_CONSTANTS_H */");
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68
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69 if (ferror (stdout) || fflush (stdout) || fclose (stdout))
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70 return FATAL_EXIT_CODE;
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71
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72 return SUCCESS_EXIT_CODE;
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73 }
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