Commit | Line | Data |
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1da177e4 LT |
1 | /* Generate kernel symbol version hashes. |
2 | Copyright 1996, 1997 Linux International. | |
3 | ||
4 | New implementation contributed by Richard Henderson <rth@tamu.edu> | |
5 | Based on original work by Bjorn Ekwall <bj0rn@blox.se> | |
6 | ||
7 | This file was part of the Linux modutils 2.4.22: moved back into the | |
8 | kernel sources by Rusty Russell/Kai Germaschewski. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU General Public License as published by the | |
12 | Free Software Foundation; either version 2 of the License, or (at your | |
13 | option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software Foundation, | |
22 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
23 | ||
24 | #include <stdio.h> | |
25 | #include <string.h> | |
26 | #include <stdlib.h> | |
27 | #include <unistd.h> | |
28 | #include <assert.h> | |
29 | #include <stdarg.h> | |
30 | #ifdef __GNU_LIBRARY__ | |
31 | #include <getopt.h> | |
32 | #endif /* __GNU_LIBRARY__ */ | |
33 | ||
34 | #include "genksyms.h" | |
35 | ||
36 | /*----------------------------------------------------------------------*/ | |
37 | ||
38 | #define HASH_BUCKETS 4096 | |
39 | ||
40 | static struct symbol *symtab[HASH_BUCKETS]; | |
41 | FILE *debugfile; | |
42 | ||
43 | int cur_line = 1; | |
44 | char *cur_filename, *output_directory; | |
45 | ||
46 | int flag_debug, flag_dump_defs, flag_warnings; | |
47 | ||
48 | static int errors; | |
49 | static int nsyms; | |
50 | ||
51 | static struct symbol *expansion_trail; | |
52 | ||
53 | static const char * const symbol_type_name[] = { | |
54 | "normal", "typedef", "enum", "struct", "union" | |
55 | }; | |
56 | ||
57 | /*----------------------------------------------------------------------*/ | |
58 | ||
59 | static const unsigned int crctab32[] = | |
60 | { | |
61 | 0x00000000U, 0x77073096U, 0xee0e612cU, 0x990951baU, 0x076dc419U, | |
62 | 0x706af48fU, 0xe963a535U, 0x9e6495a3U, 0x0edb8832U, 0x79dcb8a4U, | |
63 | 0xe0d5e91eU, 0x97d2d988U, 0x09b64c2bU, 0x7eb17cbdU, 0xe7b82d07U, | |
64 | 0x90bf1d91U, 0x1db71064U, 0x6ab020f2U, 0xf3b97148U, 0x84be41deU, | |
65 | 0x1adad47dU, 0x6ddde4ebU, 0xf4d4b551U, 0x83d385c7U, 0x136c9856U, | |
66 | 0x646ba8c0U, 0xfd62f97aU, 0x8a65c9ecU, 0x14015c4fU, 0x63066cd9U, | |
67 | 0xfa0f3d63U, 0x8d080df5U, 0x3b6e20c8U, 0x4c69105eU, 0xd56041e4U, | |
68 | 0xa2677172U, 0x3c03e4d1U, 0x4b04d447U, 0xd20d85fdU, 0xa50ab56bU, | |
69 | 0x35b5a8faU, 0x42b2986cU, 0xdbbbc9d6U, 0xacbcf940U, 0x32d86ce3U, | |
70 | 0x45df5c75U, 0xdcd60dcfU, 0xabd13d59U, 0x26d930acU, 0x51de003aU, | |
71 | 0xc8d75180U, 0xbfd06116U, 0x21b4f4b5U, 0x56b3c423U, 0xcfba9599U, | |
72 | 0xb8bda50fU, 0x2802b89eU, 0x5f058808U, 0xc60cd9b2U, 0xb10be924U, | |
73 | 0x2f6f7c87U, 0x58684c11U, 0xc1611dabU, 0xb6662d3dU, 0x76dc4190U, | |
74 | 0x01db7106U, 0x98d220bcU, 0xefd5102aU, 0x71b18589U, 0x06b6b51fU, | |
75 | 0x9fbfe4a5U, 0xe8b8d433U, 0x7807c9a2U, 0x0f00f934U, 0x9609a88eU, | |
76 | 0xe10e9818U, 0x7f6a0dbbU, 0x086d3d2dU, 0x91646c97U, 0xe6635c01U, | |
77 | 0x6b6b51f4U, 0x1c6c6162U, 0x856530d8U, 0xf262004eU, 0x6c0695edU, | |
78 | 0x1b01a57bU, 0x8208f4c1U, 0xf50fc457U, 0x65b0d9c6U, 0x12b7e950U, | |
79 | 0x8bbeb8eaU, 0xfcb9887cU, 0x62dd1ddfU, 0x15da2d49U, 0x8cd37cf3U, | |
80 | 0xfbd44c65U, 0x4db26158U, 0x3ab551ceU, 0xa3bc0074U, 0xd4bb30e2U, | |
81 | 0x4adfa541U, 0x3dd895d7U, 0xa4d1c46dU, 0xd3d6f4fbU, 0x4369e96aU, | |
82 | 0x346ed9fcU, 0xad678846U, 0xda60b8d0U, 0x44042d73U, 0x33031de5U, | |
83 | 0xaa0a4c5fU, 0xdd0d7cc9U, 0x5005713cU, 0x270241aaU, 0xbe0b1010U, | |
84 | 0xc90c2086U, 0x5768b525U, 0x206f85b3U, 0xb966d409U, 0xce61e49fU, | |
85 | 0x5edef90eU, 0x29d9c998U, 0xb0d09822U, 0xc7d7a8b4U, 0x59b33d17U, | |
86 | 0x2eb40d81U, 0xb7bd5c3bU, 0xc0ba6cadU, 0xedb88320U, 0x9abfb3b6U, | |
87 | 0x03b6e20cU, 0x74b1d29aU, 0xead54739U, 0x9dd277afU, 0x04db2615U, | |
88 | 0x73dc1683U, 0xe3630b12U, 0x94643b84U, 0x0d6d6a3eU, 0x7a6a5aa8U, | |
89 | 0xe40ecf0bU, 0x9309ff9dU, 0x0a00ae27U, 0x7d079eb1U, 0xf00f9344U, | |
90 | 0x8708a3d2U, 0x1e01f268U, 0x6906c2feU, 0xf762575dU, 0x806567cbU, | |
91 | 0x196c3671U, 0x6e6b06e7U, 0xfed41b76U, 0x89d32be0U, 0x10da7a5aU, | |
92 | 0x67dd4accU, 0xf9b9df6fU, 0x8ebeeff9U, 0x17b7be43U, 0x60b08ed5U, | |
93 | 0xd6d6a3e8U, 0xa1d1937eU, 0x38d8c2c4U, 0x4fdff252U, 0xd1bb67f1U, | |
94 | 0xa6bc5767U, 0x3fb506ddU, 0x48b2364bU, 0xd80d2bdaU, 0xaf0a1b4cU, | |
95 | 0x36034af6U, 0x41047a60U, 0xdf60efc3U, 0xa867df55U, 0x316e8eefU, | |
96 | 0x4669be79U, 0xcb61b38cU, 0xbc66831aU, 0x256fd2a0U, 0x5268e236U, | |
97 | 0xcc0c7795U, 0xbb0b4703U, 0x220216b9U, 0x5505262fU, 0xc5ba3bbeU, | |
98 | 0xb2bd0b28U, 0x2bb45a92U, 0x5cb36a04U, 0xc2d7ffa7U, 0xb5d0cf31U, | |
99 | 0x2cd99e8bU, 0x5bdeae1dU, 0x9b64c2b0U, 0xec63f226U, 0x756aa39cU, | |
100 | 0x026d930aU, 0x9c0906a9U, 0xeb0e363fU, 0x72076785U, 0x05005713U, | |
101 | 0x95bf4a82U, 0xe2b87a14U, 0x7bb12baeU, 0x0cb61b38U, 0x92d28e9bU, | |
102 | 0xe5d5be0dU, 0x7cdcefb7U, 0x0bdbdf21U, 0x86d3d2d4U, 0xf1d4e242U, | |
103 | 0x68ddb3f8U, 0x1fda836eU, 0x81be16cdU, 0xf6b9265bU, 0x6fb077e1U, | |
104 | 0x18b74777U, 0x88085ae6U, 0xff0f6a70U, 0x66063bcaU, 0x11010b5cU, | |
105 | 0x8f659effU, 0xf862ae69U, 0x616bffd3U, 0x166ccf45U, 0xa00ae278U, | |
106 | 0xd70dd2eeU, 0x4e048354U, 0x3903b3c2U, 0xa7672661U, 0xd06016f7U, | |
107 | 0x4969474dU, 0x3e6e77dbU, 0xaed16a4aU, 0xd9d65adcU, 0x40df0b66U, | |
108 | 0x37d83bf0U, 0xa9bcae53U, 0xdebb9ec5U, 0x47b2cf7fU, 0x30b5ffe9U, | |
109 | 0xbdbdf21cU, 0xcabac28aU, 0x53b39330U, 0x24b4a3a6U, 0xbad03605U, | |
110 | 0xcdd70693U, 0x54de5729U, 0x23d967bfU, 0xb3667a2eU, 0xc4614ab8U, | |
111 | 0x5d681b02U, 0x2a6f2b94U, 0xb40bbe37U, 0xc30c8ea1U, 0x5a05df1bU, | |
112 | 0x2d02ef8dU | |
113 | }; | |
114 | ||
115 | static inline unsigned long | |
116 | partial_crc32_one(unsigned char c, unsigned long crc) | |
117 | { | |
118 | return crctab32[(crc ^ c) & 0xff] ^ (crc >> 8); | |
119 | } | |
120 | ||
121 | static inline unsigned long | |
122 | partial_crc32(const char *s, unsigned long crc) | |
123 | { | |
124 | while (*s) | |
125 | crc = partial_crc32_one(*s++, crc); | |
126 | return crc; | |
127 | } | |
128 | ||
129 | static inline unsigned long | |
130 | crc32(const char *s) | |
131 | { | |
132 | return partial_crc32(s, 0xffffffff) ^ 0xffffffff; | |
133 | } | |
134 | ||
135 | ||
136 | /*----------------------------------------------------------------------*/ | |
137 | ||
138 | static inline enum symbol_type | |
139 | map_to_ns(enum symbol_type t) | |
140 | { | |
141 | if (t == SYM_TYPEDEF) | |
142 | t = SYM_NORMAL; | |
143 | else if (t == SYM_UNION) | |
144 | t = SYM_STRUCT; | |
145 | return t; | |
146 | } | |
147 | ||
148 | struct symbol * | |
149 | find_symbol(const char *name, enum symbol_type ns) | |
150 | { | |
151 | unsigned long h = crc32(name) % HASH_BUCKETS; | |
152 | struct symbol *sym; | |
153 | ||
154 | for (sym = symtab[h]; sym ; sym = sym->hash_next) | |
155 | if (map_to_ns(sym->type) == map_to_ns(ns) && strcmp(name, sym->name) == 0) | |
156 | break; | |
157 | ||
158 | return sym; | |
159 | } | |
160 | ||
161 | struct symbol * | |
162 | add_symbol(const char *name, enum symbol_type type, struct string_list *defn, int is_extern) | |
163 | { | |
164 | unsigned long h = crc32(name) % HASH_BUCKETS; | |
165 | struct symbol *sym; | |
166 | ||
167 | for (sym = symtab[h]; sym ; sym = sym->hash_next) | |
168 | if (map_to_ns(sym->type) == map_to_ns(type) | |
169 | && strcmp(name, sym->name) == 0) | |
170 | { | |
171 | if (!equal_list(sym->defn, defn)) | |
172 | error_with_pos("redefinition of %s", name); | |
173 | return sym; | |
174 | } | |
175 | ||
176 | sym = xmalloc(sizeof(*sym)); | |
177 | sym->name = name; | |
178 | sym->type = type; | |
179 | sym->defn = defn; | |
180 | sym->expansion_trail = NULL; | |
181 | sym->is_extern = is_extern; | |
182 | ||
183 | sym->hash_next = symtab[h]; | |
184 | symtab[h] = sym; | |
185 | ||
186 | if (flag_debug) | |
187 | { | |
188 | fprintf(debugfile, "Defn for %s %s == <", symbol_type_name[type], name); | |
189 | if (is_extern) | |
190 | fputs("extern ", debugfile); | |
191 | print_list(debugfile, defn); | |
192 | fputs(">\n", debugfile); | |
193 | } | |
194 | ||
195 | ++nsyms; | |
196 | return sym; | |
197 | } | |
198 | ||
199 | ||
200 | /*----------------------------------------------------------------------*/ | |
201 | ||
202 | inline void | |
203 | free_node(struct string_list *node) | |
204 | { | |
205 | free(node->string); | |
206 | free(node); | |
207 | } | |
208 | ||
209 | void | |
210 | free_list(struct string_list *s, struct string_list *e) | |
211 | { | |
212 | while (s != e) | |
213 | { | |
214 | struct string_list *next = s->next; | |
215 | free_node(s); | |
216 | s = next; | |
217 | } | |
218 | } | |
219 | ||
220 | inline struct string_list * | |
221 | copy_node(struct string_list *node) | |
222 | { | |
223 | struct string_list *newnode; | |
224 | ||
225 | newnode = xmalloc(sizeof(*newnode)); | |
226 | newnode->string = xstrdup(node->string); | |
227 | newnode->tag = node->tag; | |
228 | ||
229 | return newnode; | |
230 | } | |
231 | ||
232 | struct string_list * | |
233 | copy_list(struct string_list *s, struct string_list *e) | |
234 | { | |
235 | struct string_list *h, *p; | |
236 | ||
237 | if (s == e) | |
238 | return NULL; | |
239 | ||
240 | p = h = copy_node(s); | |
241 | while ((s = s->next) != e) | |
242 | p = p->next = copy_node(s); | |
243 | p->next = NULL; | |
244 | ||
245 | return h; | |
246 | } | |
247 | ||
248 | int | |
249 | equal_list(struct string_list *a, struct string_list *b) | |
250 | { | |
251 | while (a && b) | |
252 | { | |
253 | if (a->tag != b->tag || strcmp(a->string, b->string)) | |
254 | return 0; | |
255 | a = a->next; | |
256 | b = b->next; | |
257 | } | |
258 | ||
259 | return !a && !b; | |
260 | } | |
261 | ||
262 | static inline void | |
263 | print_node(FILE *f, struct string_list *list) | |
264 | { | |
265 | switch (list->tag) | |
266 | { | |
267 | case SYM_STRUCT: | |
268 | putc('s', f); | |
269 | goto printit; | |
270 | case SYM_UNION: | |
271 | putc('u', f); | |
272 | goto printit; | |
273 | case SYM_ENUM: | |
274 | putc('e', f); | |
275 | goto printit; | |
276 | case SYM_TYPEDEF: | |
277 | putc('t', f); | |
278 | goto printit; | |
279 | ||
280 | printit: | |
281 | putc('#', f); | |
282 | case SYM_NORMAL: | |
283 | fputs(list->string, f); | |
284 | break; | |
285 | } | |
286 | } | |
287 | ||
288 | void | |
289 | print_list(FILE *f, struct string_list *list) | |
290 | { | |
291 | struct string_list **e, **b; | |
292 | struct string_list *tmp, **tmp2; | |
293 | int elem = 1; | |
294 | ||
295 | if (list == NULL) | |
296 | { | |
297 | fputs("(nil)", f); | |
298 | return; | |
299 | } | |
300 | ||
301 | tmp = list; | |
302 | while((tmp = tmp->next) != NULL) | |
303 | elem++; | |
304 | ||
305 | b = alloca(elem * sizeof(*e)); | |
306 | e = b + elem; | |
307 | tmp2 = e - 1; | |
308 | ||
309 | (*tmp2--) = list; | |
310 | while((list = list->next) != NULL) | |
311 | *(tmp2--) = list; | |
312 | ||
313 | while (b != e) | |
314 | { | |
315 | print_node(f, *b++); | |
316 | putc(' ', f); | |
317 | } | |
318 | } | |
319 | ||
320 | static unsigned long | |
321 | expand_and_crc_list(struct string_list *list, unsigned long crc) | |
322 | { | |
323 | struct string_list **e, **b; | |
324 | struct string_list *tmp, **tmp2; | |
325 | int elem = 1; | |
326 | ||
327 | if (!list) | |
328 | return crc; | |
329 | ||
330 | tmp = list; | |
331 | while((tmp = tmp->next) != NULL) | |
332 | elem++; | |
333 | ||
334 | b = alloca(elem * sizeof(*e)); | |
335 | e = b + elem; | |
336 | tmp2 = e - 1; | |
337 | ||
338 | *(tmp2--) = list; | |
339 | while ((list = list->next) != NULL) | |
340 | *(tmp2--) = list; | |
341 | ||
342 | while (b != e) | |
343 | { | |
344 | struct string_list *cur; | |
345 | struct symbol *subsym; | |
346 | ||
347 | cur = *(b++); | |
348 | switch (cur->tag) | |
349 | { | |
350 | case SYM_NORMAL: | |
351 | if (flag_dump_defs) | |
352 | fprintf(debugfile, "%s ", cur->string); | |
353 | crc = partial_crc32(cur->string, crc); | |
354 | crc = partial_crc32_one(' ', crc); | |
355 | break; | |
356 | ||
357 | case SYM_TYPEDEF: | |
358 | subsym = find_symbol(cur->string, cur->tag); | |
359 | if (subsym->expansion_trail) | |
360 | { | |
361 | if (flag_dump_defs) | |
362 | fprintf(debugfile, "%s ", cur->string); | |
363 | crc = partial_crc32(cur->string, crc); | |
364 | crc = partial_crc32_one(' ', crc); | |
365 | } | |
366 | else | |
367 | { | |
368 | subsym->expansion_trail = expansion_trail; | |
369 | expansion_trail = subsym; | |
370 | crc = expand_and_crc_list(subsym->defn, crc); | |
371 | } | |
372 | break; | |
373 | ||
374 | case SYM_STRUCT: | |
375 | case SYM_UNION: | |
376 | case SYM_ENUM: | |
377 | subsym = find_symbol(cur->string, cur->tag); | |
378 | if (!subsym) | |
379 | { | |
380 | struct string_list *n, *t = NULL; | |
381 | ||
382 | error_with_pos("expand undefined %s %s", | |
383 | symbol_type_name[cur->tag], cur->string); | |
384 | ||
385 | n = xmalloc(sizeof(*n)); | |
386 | n->string = xstrdup(symbol_type_name[cur->tag]); | |
387 | n->tag = SYM_NORMAL; | |
388 | n->next = t; | |
389 | t = n; | |
390 | ||
391 | n = xmalloc(sizeof(*n)); | |
392 | n->string = xstrdup(cur->string); | |
393 | n->tag = SYM_NORMAL; | |
394 | n->next = t; | |
395 | t = n; | |
396 | ||
397 | n = xmalloc(sizeof(*n)); | |
398 | n->string = xstrdup("{ UNKNOWN }"); | |
399 | n->tag = SYM_NORMAL; | |
400 | n->next = t; | |
401 | ||
402 | subsym = add_symbol(cur->string, cur->tag, n, 0); | |
403 | } | |
404 | if (subsym->expansion_trail) | |
405 | { | |
406 | if (flag_dump_defs) | |
407 | { | |
408 | fprintf(debugfile, "%s %s ", symbol_type_name[cur->tag], | |
409 | cur->string); | |
410 | } | |
411 | ||
412 | crc = partial_crc32(symbol_type_name[cur->tag], crc); | |
413 | crc = partial_crc32_one(' ', crc); | |
414 | crc = partial_crc32(cur->string, crc); | |
415 | crc = partial_crc32_one(' ', crc); | |
416 | } | |
417 | else | |
418 | { | |
419 | subsym->expansion_trail = expansion_trail; | |
420 | expansion_trail = subsym; | |
421 | crc = expand_and_crc_list(subsym->defn, crc); | |
422 | } | |
423 | break; | |
424 | } | |
425 | } | |
426 | ||
427 | return crc; | |
428 | } | |
429 | ||
430 | void | |
431 | export_symbol(const char *name) | |
432 | { | |
433 | struct symbol *sym; | |
434 | ||
435 | sym = find_symbol(name, SYM_NORMAL); | |
436 | if (!sym) | |
437 | error_with_pos("export undefined symbol %s", name); | |
438 | else | |
439 | { | |
440 | unsigned long crc; | |
441 | ||
442 | if (flag_dump_defs) | |
443 | fprintf(debugfile, "Export %s == <", name); | |
444 | ||
445 | expansion_trail = (struct symbol *)-1L; | |
446 | ||
447 | crc = expand_and_crc_list(sym->defn, 0xffffffff) ^ 0xffffffff; | |
448 | ||
449 | sym = expansion_trail; | |
450 | while (sym != (struct symbol *)-1L) | |
451 | { | |
452 | struct symbol *n = sym->expansion_trail; | |
453 | sym->expansion_trail = 0; | |
454 | sym = n; | |
455 | } | |
456 | ||
457 | if (flag_dump_defs) | |
458 | fputs(">\n", debugfile); | |
459 | ||
460 | /* Used as a linker script. */ | |
461 | printf("__crc_%s = 0x%08lx ;\n", name, crc); | |
462 | } | |
463 | } | |
464 | ||
465 | /*----------------------------------------------------------------------*/ | |
466 | ||
467 | void | |
468 | error(const char *fmt, ...) | |
469 | { | |
470 | va_list args; | |
471 | ||
472 | if (flag_warnings) | |
473 | { | |
474 | va_start(args, fmt); | |
475 | vfprintf(stderr, fmt, args); | |
476 | va_end(args); | |
477 | putc('\n', stderr); | |
478 | ||
479 | errors++; | |
480 | } | |
481 | } | |
482 | ||
483 | void | |
484 | error_with_pos(const char *fmt, ...) | |
485 | { | |
486 | va_list args; | |
487 | ||
488 | if (flag_warnings) | |
489 | { | |
490 | fprintf(stderr, "%s:%d: ", cur_filename ? : "<stdin>", cur_line); | |
491 | ||
492 | va_start(args, fmt); | |
493 | vfprintf(stderr, fmt, args); | |
494 | va_end(args); | |
495 | putc('\n', stderr); | |
496 | ||
497 | errors++; | |
498 | } | |
499 | } | |
500 | ||
501 | ||
502 | void genksyms_usage(void) | |
503 | { | |
504 | fputs("Usage:\n" | |
505 | "genksyms [-dDwqhV] > /path/to/.tmp_obj.ver\n" | |
506 | "\n" | |
507 | #ifdef __GNU_LIBRARY__ | |
508 | " -d, --debug Increment the debug level (repeatable)\n" | |
509 | " -D, --dump Dump expanded symbol defs (for debugging only)\n" | |
510 | " -w, --warnings Enable warnings\n" | |
511 | " -q, --quiet Disable warnings (default)\n" | |
512 | " -h, --help Print this message\n" | |
513 | " -V, --version Print the release version\n" | |
514 | #else /* __GNU_LIBRARY__ */ | |
515 | " -d Increment the debug level (repeatable)\n" | |
516 | " -D Dump expanded symbol defs (for debugging only)\n" | |
517 | " -w Enable warnings\n" | |
518 | " -q Disable warnings (default)\n" | |
519 | " -h Print this message\n" | |
520 | " -V Print the release version\n" | |
521 | #endif /* __GNU_LIBRARY__ */ | |
522 | , stderr); | |
523 | } | |
524 | ||
525 | int | |
526 | main(int argc, char **argv) | |
527 | { | |
528 | int o; | |
529 | ||
530 | #ifdef __GNU_LIBRARY__ | |
531 | struct option long_opts[] = { | |
532 | {"debug", 0, 0, 'd'}, | |
533 | {"warnings", 0, 0, 'w'}, | |
534 | {"quiet", 0, 0, 'q'}, | |
535 | {"dump", 0, 0, 'D'}, | |
536 | {"version", 0, 0, 'V'}, | |
537 | {"help", 0, 0, 'h'}, | |
538 | {0, 0, 0, 0} | |
539 | }; | |
540 | ||
541 | while ((o = getopt_long(argc, argv, "dwqVDk:p:", | |
542 | &long_opts[0], NULL)) != EOF) | |
543 | #else /* __GNU_LIBRARY__ */ | |
544 | while ((o = getopt(argc, argv, "dwqVDk:p:")) != EOF) | |
545 | #endif /* __GNU_LIBRARY__ */ | |
546 | switch (o) | |
547 | { | |
548 | case 'd': | |
549 | flag_debug++; | |
550 | break; | |
551 | case 'w': | |
552 | flag_warnings = 1; | |
553 | break; | |
554 | case 'q': | |
555 | flag_warnings = 0; | |
556 | break; | |
557 | case 'V': | |
558 | fputs("genksyms version 2.5.60\n", stderr); | |
559 | break; | |
560 | case 'D': | |
561 | flag_dump_defs = 1; | |
562 | break; | |
563 | case 'h': | |
564 | genksyms_usage(); | |
565 | return 0; | |
566 | default: | |
567 | genksyms_usage(); | |
568 | return 1; | |
569 | } | |
570 | ||
571 | { | |
572 | extern int yydebug; | |
573 | extern int yy_flex_debug; | |
574 | ||
575 | yydebug = (flag_debug > 1); | |
576 | yy_flex_debug = (flag_debug > 2); | |
577 | ||
578 | debugfile = stderr; | |
579 | /* setlinebuf(debugfile); */ | |
580 | } | |
581 | ||
582 | yyparse(); | |
583 | ||
584 | if (flag_debug) | |
585 | { | |
586 | fprintf(debugfile, "Hash table occupancy %d/%d = %g\n", | |
587 | nsyms, HASH_BUCKETS, (double)nsyms / (double)HASH_BUCKETS); | |
588 | } | |
589 | ||
590 | return errors != 0; | |
591 | } |