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c906108c SS |
1 | /* This file is part of the program psim. |
2 | ||
3 | Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au> | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
3fd725ef | 7 | the Free Software Foundation; either version 3 of the License, or |
c906108c SS |
8 | (at your option) any later version. |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
51b318de | 16 | along with this program; if not, see <http://www.gnu.org/licenses/>. |
c906108c SS |
17 | |
18 | */ | |
19 | ||
20 | ||
21 | #include <sys/types.h> | |
22 | #include <sys/stat.h> | |
23 | #include <fcntl.h> | |
24 | #include <getopt.h> | |
25 | #include <stdio.h> | |
26 | #include <ctype.h> | |
27 | #include <stdarg.h> | |
28 | ||
68a3e151 | 29 | #include "build-config.h" |
c906108c SS |
30 | #include "misc.h" |
31 | #include "lf.h" | |
32 | #include "table.h" | |
33 | ||
34 | #ifdef HAVE_UNISTD_H | |
35 | #include <unistd.h> | |
36 | #endif | |
37 | ||
38 | #ifdef HAVE_STDLIB_H | |
39 | #include <stdlib.h> | |
40 | #endif | |
41 | ||
42 | #ifdef HAVE_STRING_H | |
43 | #include <string.h> | |
44 | #else | |
45 | #ifdef HAVE_STRINGS_H | |
46 | #include <strings.h> | |
47 | #endif | |
48 | #endif | |
49 | ||
50 | /****************************************************************/ | |
51 | ||
52 | int spreg_lookup_table = 1; | |
53 | enum { | |
54 | nr_of_sprs = 1024, | |
55 | }; | |
56 | ||
57 | /****************************************************************/ | |
58 | ||
59 | ||
60 | typedef enum { | |
61 | spreg_name, | |
62 | spreg_reg_nr, | |
63 | spreg_readonly, | |
64 | spreg_length, | |
65 | nr_spreg_fields, | |
66 | } spreg_fields; | |
67 | ||
68 | typedef struct _spreg_table_entry spreg_table_entry; | |
69 | struct _spreg_table_entry { | |
70 | char *name; | |
71 | int spreg_nr; | |
72 | int is_readonly; | |
73 | int length; | |
74 | table_entry *entry; | |
75 | spreg_table_entry *next; | |
76 | }; | |
77 | ||
78 | typedef struct _spreg_table spreg_table; | |
79 | struct _spreg_table { | |
80 | spreg_table_entry *sprs; | |
81 | }; | |
82 | ||
83 | static void | |
84 | spreg_table_insert(spreg_table *table, table_entry *entry) | |
85 | { | |
86 | /* create a new spr entry */ | |
87 | spreg_table_entry *new_spr = ZALLOC(spreg_table_entry); | |
88 | new_spr->next = NULL; | |
89 | new_spr->entry = entry; | |
90 | new_spr->spreg_nr = atoi(entry->fields[spreg_reg_nr]); | |
91 | new_spr->is_readonly = (entry->fields[spreg_readonly] | |
92 | ? atoi(entry->fields[spreg_readonly]) | |
93 | : 0); | |
94 | new_spr->length = atoi(entry->fields[spreg_length]); | |
95 | new_spr->name = (char*)zalloc(strlen(entry->fields[spreg_name]) + 1); | |
96 | ASSERT(new_spr->name != NULL); | |
97 | { | |
98 | int i; | |
99 | for (i = 0; entry->fields[spreg_name][i] != '\0'; i++) { | |
100 | if (isupper(entry->fields[spreg_name][i])) | |
101 | new_spr->name[i] = tolower(entry->fields[spreg_name][i]); | |
102 | else | |
103 | new_spr->name[i] = entry->fields[spreg_name][i]; | |
104 | } | |
105 | } | |
106 | ||
107 | /* insert, by spreg_nr order */ | |
108 | { | |
109 | spreg_table_entry **ptr_to_spreg_entry = &table->sprs; | |
110 | spreg_table_entry *spreg_entry = *ptr_to_spreg_entry; | |
111 | while (spreg_entry != NULL && spreg_entry->spreg_nr < new_spr->spreg_nr) { | |
112 | ptr_to_spreg_entry = &spreg_entry->next; | |
113 | spreg_entry = *ptr_to_spreg_entry; | |
114 | } | |
115 | ASSERT(spreg_entry == NULL || spreg_entry->spreg_nr != new_spr->spreg_nr); | |
116 | *ptr_to_spreg_entry = new_spr; | |
117 | new_spr->next = spreg_entry; | |
118 | } | |
119 | ||
120 | } | |
121 | ||
122 | ||
123 | static spreg_table * | |
124 | spreg_table_load(char *file_name) | |
125 | { | |
126 | table *file = table_open(file_name, nr_spreg_fields, 0); | |
127 | spreg_table *table = ZALLOC(spreg_table); | |
128 | ||
129 | { | |
130 | table_entry *entry; | |
131 | while ((entry = table_entry_read(file)) != NULL) { | |
132 | spreg_table_insert(table, entry); | |
133 | } | |
134 | } | |
135 | ||
136 | return table; | |
137 | } | |
138 | ||
139 | ||
140 | /****************************************************************/ | |
141 | ||
142 | char *spreg_attributes[] = { | |
143 | "is_valid", | |
144 | "is_readonly", | |
145 | "name", | |
146 | "index", | |
147 | "length", | |
148 | 0 | |
149 | }; | |
150 | ||
151 | static void | |
152 | gen_spreg_h(spreg_table *table, lf *file) | |
153 | { | |
154 | spreg_table_entry *entry; | |
155 | char **attribute; | |
156 | ||
157 | lf_print__gnu_copyleft(file); | |
158 | lf_printf(file, "\n"); | |
159 | lf_printf(file, "#ifndef _SPREG_H_\n"); | |
160 | lf_printf(file, "#define _SPREG_H_\n"); | |
161 | lf_printf(file, "\n"); | |
162 | lf_printf(file, "typedef unsigned_word spreg;\n"); | |
163 | lf_printf(file, "\n"); | |
164 | lf_printf(file, "typedef enum {\n"); | |
165 | ||
166 | for (entry = table->sprs; | |
167 | entry != NULL ; | |
168 | entry = entry->next) { | |
169 | lf_printf(file, " spr_%s = %d,\n", entry->name, entry->spreg_nr); | |
170 | } | |
171 | ||
172 | lf_printf(file, " nr_of_sprs = %d\n", nr_of_sprs); | |
173 | lf_printf(file, "} sprs;\n"); | |
174 | lf_printf(file, "\n"); | |
175 | for (attribute = spreg_attributes; | |
176 | *attribute != NULL; | |
177 | attribute++) { | |
178 | if (strcmp(*attribute, "name") == 0) { | |
179 | lf_print_function_type(file, "const char *", "INLINE_SPREG", " "); | |
180 | lf_printf(file, "spr_%s(sprs spr);\n", *attribute); | |
181 | } | |
182 | else { | |
183 | lf_print_function_type(file, "int", "INLINE_SPREG", " "); | |
184 | lf_printf(file, "spr_%s(sprs spr);\n", *attribute); | |
185 | } | |
186 | } | |
187 | lf_printf(file, "\n"); | |
188 | lf_printf(file, "#endif /* _SPREG_H_ */\n"); | |
189 | } | |
190 | ||
191 | ||
192 | static void | |
193 | gen_spreg_c(spreg_table *table, lf *file) | |
194 | { | |
195 | spreg_table_entry *entry; | |
196 | char **attribute; | |
197 | int spreg_nr; | |
198 | ||
199 | lf_print__gnu_copyleft(file); | |
200 | lf_printf(file, "\n"); | |
201 | lf_printf(file, "#ifndef _SPREG_C_\n"); | |
202 | lf_printf(file, "#define _SPREG_C_\n"); | |
203 | lf_printf(file, "\n"); | |
204 | lf_printf(file, "#include \"basics.h\"\n"); | |
205 | lf_printf(file, "#include \"spreg.h\"\n"); | |
206 | ||
207 | lf_printf(file, "\n"); | |
208 | lf_printf(file, "typedef struct _spreg_info {\n"); | |
209 | lf_printf(file, " char *name;\n"); | |
210 | lf_printf(file, " int is_valid;\n"); | |
211 | lf_printf(file, " int length;\n"); | |
212 | lf_printf(file, " int is_readonly;\n"); | |
213 | lf_printf(file, " int index;\n"); | |
214 | lf_printf(file, "} spreg_info;\n"); | |
215 | lf_printf(file, "\n"); | |
216 | lf_printf(file, "static spreg_info spr_info[nr_of_sprs+1] = {\n"); | |
217 | entry = table->sprs; | |
218 | for (spreg_nr = 0; spreg_nr < nr_of_sprs+1; spreg_nr++) { | |
219 | if (entry == NULL || spreg_nr < entry->spreg_nr) | |
220 | lf_printf(file, " { 0, 0, 0, 0, %d},\n", spreg_nr); | |
221 | else { | |
222 | lf_printf(file, " { \"%s\", %d, %d, %d, spr_%s /*%d*/ },\n", | |
223 | entry->name, 1, entry->length, entry->is_readonly, | |
224 | entry->name, entry->spreg_nr); | |
225 | entry = entry->next; | |
226 | } | |
227 | } | |
228 | lf_printf(file, "};\n"); | |
229 | ||
230 | for (attribute = spreg_attributes; | |
231 | *attribute != NULL; | |
232 | attribute++) { | |
233 | lf_printf(file, "\n"); | |
234 | if (strcmp(*attribute, "name") == 0) { | |
235 | lf_print_function_type(file, "const char *", "INLINE_SPREG", "\n"); | |
236 | } | |
237 | else { | |
238 | lf_print_function_type(file, "int", "INLINE_SPREG", "\n"); | |
239 | } | |
240 | lf_printf(file, "spr_%s(sprs spr)\n", *attribute); | |
241 | lf_printf(file, "{\n"); | |
242 | if (spreg_lookup_table | |
243 | || strcmp(*attribute, "name") == 0 | |
244 | || strcmp(*attribute, "index") == 0) | |
245 | lf_printf(file, " return spr_info[spr].%s;\n", | |
246 | *attribute); | |
247 | else { | |
248 | spreg_table_entry *entry; | |
249 | lf_printf(file, " switch (spr) {\n"); | |
250 | for (entry = table->sprs; entry != NULL; entry = entry->next) { | |
251 | lf_printf(file, " case %d:\n", entry->spreg_nr); | |
252 | if (strcmp(*attribute, "is_valid") == 0) | |
253 | lf_printf(file, " return 1;\n"); | |
254 | else if (strcmp(*attribute, "is_readonly") == 0) | |
255 | lf_printf(file, " return %d;\n", entry->is_readonly); | |
256 | else if (strcmp(*attribute, "length") == 0) | |
257 | lf_printf(file, " return %d;\n", entry->length); | |
258 | else | |
259 | ASSERT(0); | |
260 | } | |
261 | lf_printf(file, " default:\n"); | |
262 | lf_printf(file, " return 0;\n"); | |
263 | lf_printf(file, " }\n"); | |
264 | } | |
265 | lf_printf(file, "}\n"); | |
266 | } | |
267 | ||
268 | lf_printf(file, "\n"); | |
269 | lf_printf(file, "#endif /* _SPREG_C_ */\n"); | |
270 | } | |
271 | ||
272 | ||
273 | ||
274 | /****************************************************************/ | |
275 | ||
276 | ||
277 | int | |
278 | main(int argc, | |
279 | char **argv, | |
280 | char **envp) | |
281 | { | |
282 | lf_file_references file_references = lf_include_references; | |
283 | spreg_table *sprs = NULL; | |
284 | char *real_file_name = NULL; | |
285 | int is_header = 0; | |
286 | int ch; | |
287 | ||
288 | if (argc <= 1) { | |
289 | printf("Usage: dgen ...\n"); | |
290 | printf("-s Use switch instead of table\n"); | |
291 | printf("-n <file-name> Use this as cpp line numbering name\n"); | |
292 | printf("-h Output header file\n"); | |
293 | printf("-p <spreg-file> Output spreg.h(P) or spreg.c(p)\n"); | |
294 | printf("-L Suppress cpp line numbering in output files\n"); | |
295 | } | |
296 | ||
297 | ||
298 | while ((ch = getopt(argc, argv, "hLsn:r:p:")) != -1) { | |
299 | fprintf(stderr, "\t-%c %s\n", ch, ( optarg ? optarg : "")); | |
300 | switch(ch) { | |
301 | case 's': | |
302 | spreg_lookup_table = 0; | |
303 | break; | |
304 | case 'r': | |
305 | sprs = spreg_table_load(optarg); | |
306 | break; | |
307 | case 'n': | |
308 | real_file_name = strdup(optarg); | |
309 | break; | |
310 | case 'L': | |
311 | file_references = lf_omit_references; | |
312 | break; | |
313 | case 'h': | |
314 | is_header = 1; | |
315 | break; | |
316 | case 'p': | |
317 | { | |
318 | lf *file = lf_open(optarg, real_file_name, file_references, | |
319 | (is_header ? lf_is_h : lf_is_c), | |
320 | argv[0]); | |
321 | if (is_header) | |
322 | gen_spreg_h(sprs, file); | |
323 | else | |
324 | gen_spreg_c(sprs, file); | |
325 | lf_close(file); | |
326 | is_header = 0; | |
327 | } | |
328 | real_file_name = NULL; | |
329 | break; | |
330 | default: | |
331 | error("unknown option\n"); | |
332 | } | |
333 | } | |
334 | return 0; | |
335 | } |