| /* Generate from machine description: |
| a series of #define statements, one for each constant named in |
| a (define_constants ...) pattern. |
| |
| Copyright (C) 1987-2017 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 "statistics.h" |
| #include "vec.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, const char **argv) |
| { |
| progname = "genconstants"; |
| |
| noop_reader reader; |
| if (!reader.read_md_files (argc, argv, 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"); |
| |
| reader.traverse_md_constants (print_md_constant, 0); |
| reader.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; |
| } |