1/* Generate from machine description: 2 a series of #define statements, one for each constant named in 3 a (define_constants ...) pattern. 4 5 Copyright (C) 1987-2015 Free Software Foundation, Inc. 6 7This file is part of GCC. 8 9GCC is free software; you can redistribute it and/or modify 10it under the terms of the GNU General Public License as published by 11the Free Software Foundation; either version 3, or (at your option) 12any later version. 13 14GCC is distributed in the hope that it will be useful, 15but WITHOUT ANY WARRANTY; without even the implied warranty of 16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17GNU General Public License for more details. 18 19You should have received a copy of the GNU General Public License 20along with GCC; see the file COPYING3. If not see 21<http://www.gnu.org/licenses/>. */ 22 23/* This program does not use gensupport.c because it does not need to 24 look at insn patterns, only (define_constants), and we want to 25 minimize dependencies. */ 26 27#include "bconfig.h" 28#include "system.h" 29#include "coretypes.h" 30#include "errors.h" 31#include "read-md.h" 32 33/* Called via traverse_md_constants; emit a #define for 34 the current constant definition. */ 35 36static int 37print_md_constant (void **slot, void *info ATTRIBUTE_UNUSED) 38{ 39 struct md_constant *def = (struct md_constant *) *slot; 40 41 if (!def->parent_enum) 42 printf ("#define %s %s\n", def->name, def->value); 43 return 1; 44} 45 46/* Called via traverse_enums. Emit an enum definition for 47 enum_type *SLOT. */ 48 49static int 50print_enum_type (void **slot, void *info ATTRIBUTE_UNUSED) 51{ 52 struct enum_type *def; 53 struct enum_value *value; 54 char *value_name; 55 56 def = (struct enum_type *) *slot; 57 printf ("\nenum %s {", def->name); 58 for (value = def->values; value; value = value->next) 59 { 60 printf ("\n %s = %s", value->def->name, value->def->value); 61 if (value->next) 62 putc (',', stdout); 63 } 64 printf ("\n};\n"); 65 66 /* Define NUM_<enum>_VALUES to be the largest enum value + 1. */ 67 value_name = ACONCAT (("num_", def->name, "_values", NULL)); 68 upcase_string (value_name); 69 printf ("#define %s %d\n", value_name, def->num_values); 70 71 /* Declare the array that is generated by genenum. */ 72 printf ("extern const char *const %s_strings[];\n", def->name); 73 74 return 1; 75} 76 77int 78main (int argc, char **argv) 79{ 80 progname = "genconstants"; 81 82 if (!read_md_files (argc, argv, NULL, NULL)) 83 return (FATAL_EXIT_CODE); 84 85 /* Initializing the MD reader has the side effect of loading up 86 the constants table that we wish to scan. */ 87 88 puts ("/* Generated automatically by the program `genconstants'"); 89 puts (" from the machine description file `md'. */\n"); 90 puts ("#ifndef GCC_INSN_CONSTANTS_H"); 91 puts ("#define GCC_INSN_CONSTANTS_H\n"); 92 93 traverse_md_constants (print_md_constant, 0); 94 traverse_enum_types (print_enum_type, 0); 95 96 puts ("\n#endif /* GCC_INSN_CONSTANTS_H */"); 97 98 if (ferror (stdout) || fflush (stdout) || fclose (stdout)) 99 return FATAL_EXIT_CODE; 100 101 return SUCCESS_EXIT_CODE; 102} 103