Mercurial > hg > CbC > CbC_gcc
annotate gcc/genconstants.c @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | 04ced10e8804 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 0 | 1 /* Generate from machine description: |
| 2 a series of #define statements, one for each constant named in | |
| 3 a (define_constants ...) pattern. | |
| 4 | |
| 131 | 5 Copyright (C) 1987-2018 Free Software Foundation, Inc. |
| 0 | 6 |
| 7 This file is part of GCC. | |
| 8 | |
| 9 GCC is free software; you can redistribute it and/or modify | |
| 10 it under the terms of the GNU General Public License as published by | |
| 11 the Free Software Foundation; either version 3, or (at your option) | |
| 12 any later version. | |
| 13 | |
| 14 GCC is distributed in the hope that it will be useful, | |
| 15 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 GNU General Public License for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along 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" | |
| 111 | 31 #include "statistics.h" |
| 32 #include "vec.h" | |
|
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33 #include "read-md.h" |
| 0 | 34 |
| 35 /* Called via traverse_md_constants; emit a #define for | |
| 36 the current constant definition. */ | |
| 37 | |
| 38 static int | |
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39 print_md_constant (void **slot, void *info ATTRIBUTE_UNUSED) |
| 0 | 40 { |
| 41 struct md_constant *def = (struct md_constant *) *slot; | |
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42 |
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43 if (!def->parent_enum) |
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44 printf ("#define %s %s\n", def->name, def->value); |
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45 return 1; |
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46 } |
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47 |
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48 /* Called via traverse_enums. Emit an enum definition for |
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49 enum_type *SLOT. */ |
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50 |
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51 static int |
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52 print_enum_type (void **slot, void *info ATTRIBUTE_UNUSED) |
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53 { |
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54 struct enum_type *def; |
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55 struct enum_value *value; |
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56 char *value_name; |
| 0 | 57 |
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58 def = (struct enum_type *) *slot; |
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59 printf ("\nenum %s {", def->name); |
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60 for (value = def->values; value; value = value->next) |
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61 { |
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62 printf ("\n %s = %s", value->def->name, value->def->value); |
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63 if (value->next) |
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64 putc (',', stdout); |
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65 } |
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66 printf ("\n};\n"); |
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67 |
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68 /* Define NUM_<enum>_VALUES to be the largest enum value + 1. */ |
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69 value_name = ACONCAT (("num_", def->name, "_values", NULL)); |
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70 upcase_string (value_name); |
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71 printf ("#define %s %d\n", value_name, def->num_values); |
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72 |
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73 /* Declare the array that is generated by genenum. */ |
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74 printf ("extern const char *const %s_strings[];\n", def->name); |
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75 |
| 0 | 76 return 1; |
| 77 } | |
| 78 | |
| 79 int | |
| 111 | 80 main (int argc, const char **argv) |
| 0 | 81 { |
| 82 progname = "genconstants"; | |
| 83 | |
| 111 | 84 noop_reader reader; |
| 85 if (!reader.read_md_files (argc, argv, NULL)) | |
| 0 | 86 return (FATAL_EXIT_CODE); |
| 87 | |
| 88 /* Initializing the MD reader has the side effect of loading up | |
| 89 the constants table that we wish to scan. */ | |
| 90 | |
| 91 puts ("/* Generated automatically by the program `genconstants'"); | |
| 92 puts (" from the machine description file `md'. */\n"); | |
| 93 puts ("#ifndef GCC_INSN_CONSTANTS_H"); | |
| 94 puts ("#define GCC_INSN_CONSTANTS_H\n"); | |
| 95 | |
| 111 | 96 reader.traverse_md_constants (print_md_constant, 0); |
| 97 reader.traverse_enum_types (print_enum_type, 0); | |
| 0 | 98 |
| 99 puts ("\n#endif /* GCC_INSN_CONSTANTS_H */"); | |
| 100 | |
| 101 if (ferror (stdout) || fflush (stdout) || fclose (stdout)) | |
| 102 return FATAL_EXIT_CODE; | |
| 103 | |
| 104 return SUCCESS_EXIT_CODE; | |
| 105 } |