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/* Generate from machine description:
a series of #define statements, one for each constant named in
a (define_constants ...) pattern.
Copyright (C) 1987-2013 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* This program does not use gensupport.c because it does not need to
look at insn patterns, only (define_constants), and we want to
minimize dependencies. */
#include "bconfig.h"
#include "system.h"
#include "coretypes.h"
#include "errors.h"
#include "read-md.h"
/* Called via traverse_md_constants; emit a #define for
the current constant definition. */
static int
print_md_constant (void **slot, void *info ATTRIBUTE_UNUSED)
{
struct md_constant *def = (struct md_constant *) *slot;
if (!def->parent_enum)
printf ("#define %s %s\n", def->name, def->value);
return 1;
}
/* Called via traverse_enums. Emit an enum definition for
enum_type *SLOT. */
static int
print_enum_type (void **slot, void *info ATTRIBUTE_UNUSED)
{
struct enum_type *def;
struct enum_value *value;
char *value_name;
def = (struct enum_type *) *slot;
printf ("\nenum %s {", def->name);
for (value = def->values; value; value = value->next)
{
printf ("\n %s = %s", value->def->name, value->def->value);
if (value->next)
putc (',', stdout);
}
printf ("\n};\n");
/* Define NUM_<enum>_VALUES to be the largest enum value + 1. */
value_name = ACONCAT (("num_", def->name, "_values", NULL));
upcase_string (value_name);
printf ("#define %s %d\n", value_name, def->num_values);
/* Declare the array that is generated by genenum. */
printf ("extern const char *const %s_strings[];\n", def->name);
return 1;
}
int
main (int argc, char **argv)
{
progname = "genconstants";
if (!read_md_files (argc, argv, NULL, NULL))
return (FATAL_EXIT_CODE);
/* Initializing the MD reader has the side effect of loading up
the constants table that we wish to scan. */
puts ("/* Generated automatically by the program `genconstants'");
puts (" from the machine description file `md'. */\n");
puts ("#ifndef GCC_INSN_CONSTANTS_H");
puts ("#define GCC_INSN_CONSTANTS_H\n");
traverse_md_constants (print_md_constant, 0);
traverse_enum_types (print_enum_type, 0);
puts ("\n#endif /* GCC_INSN_CONSTANTS_H */");
if (ferror (stdout) || fflush (stdout) || fclose (stdout))
return FATAL_EXIT_CODE;
return SUCCESS_EXIT_CODE;
}
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