?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
updated the uclibc defconfig to be compatible with the SVN version
[kvm-coreboot.git] / scripts / kconfig / confdata.c
blob898ae91bd71489add28fcde2aaed91dbcd8eab64
1 /*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 */
5
6 #include <sys/stat.h>
7 #include <ctype.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <string.h>
11 #include <time.h>
12 #include <unistd.h>
13
14 #define LKC_DIRECT_LINK
15 #include "lkc.h"
16
17 static void conf_warning(const char *fmt, ...)
18 __attribute__ ((format (printf, 1, 2)));
19
20 static const char *conf_filename;
21 static int conf_lineno, conf_warnings, conf_unsaved;
22
23 const char conf_def_filename[] = ".config";
24
25 const char conf_defname[] = "scripts/defconfig";
26
27 const char *conf_confnames[] = {
28 ".config",
29 NULL,
30 };
31
32 static void conf_warning(const char *fmt, ...)
33 {
34 va_list ap;
35 va_start(ap, fmt);
36 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
37 vfprintf(stderr, fmt, ap);
38 fprintf(stderr, "\n");
39 va_end(ap);
40 conf_warnings++;
41 }
42
43 static char *conf_expand_value(const char *in)
44 {
45 struct symbol *sym;
46 const char *src;
47 static char res_value[SYMBOL_MAXLENGTH];
48 char *dst, name[SYMBOL_MAXLENGTH];
49
50 res_value[0] = 0;
51 dst = name;
52 while ((src = strchr(in, '$'))) {
53 strncat(res_value, in, src - in);
54 src++;
55 dst = name;
56 while (isalnum(*src) || *src == '_')
57 *dst++ = *src++;
58 *dst = 0;
59 sym = sym_lookup(name, 0);
60 sym_calc_value(sym);
61 strcat(res_value, sym_get_string_value(sym));
62 in = src;
63 }
64 strcat(res_value, in);
65
66 return res_value;
67 }
68
69 char *conf_get_default_confname(void)
70 {
71 struct stat buf;
72 static char fullname[PATH_MAX+1];
73 char *env, *name;
74
75 name = conf_expand_value(conf_defname);
76 env = getenv(SRCTREE);
77 if (env) {
78 sprintf(fullname, "%s/%s", env, name);
79 if (!stat(fullname, &buf))
80 return fullname;
81 }
82 return name;
83 }
84
85 int conf_read_simple(const char *name)
86 {
87 FILE *in = NULL;
88 char line[1024];
89 char *p, *p2;
90 struct symbol *sym;
91 int i;
92
93 if (name) {
94 in = zconf_fopen(name);
95 } else {
96 const char **names = conf_confnames;
97 while ((name = *names++)) {
98 name = conf_expand_value(name);
99 in = zconf_fopen(name);
100 if (in) {
101 printf(_("#\n"
102 "# using defaults found in %s\n"
103 "#\n"), name);
104 break;
105 }
106 }
107 }
108 if (!in)
109 return 1;
110
111 conf_filename = name;
112 conf_lineno = 0;
113 conf_warnings = 0;
114 conf_unsaved = 0;
115
116 for_all_symbols(i, sym) {
117 sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
118 if (sym_is_choice(sym))
119 sym->flags &= ~SYMBOL_NEW;
120 sym->flags &= ~SYMBOL_VALID;
121 switch (sym->type) {
122 case S_INT:
123 case S_HEX:
124 case S_STRING:
125 if (sym->user.val)
126 free(sym->user.val);
127 default:
128 sym->user.val = NULL;
129 sym->user.tri = no;
130 }
131 }
132
133 while (fgets(line, sizeof(line), in)) {
134 conf_lineno++;
135 sym = NULL;
136 switch (line[0]) {
137 case '#':
138 if (memcmp(line + 2, "CONFIG_", 7))
139 continue;
140 p = strchr(line + 9, ' ');
141 if (!p)
142 continue;
143 *p++ = 0;
144 if (strncmp(p, "is not set", 10))
145 continue;
146 sym = sym_find(line + 9);
147 if (!sym) {
148 conf_warning("trying to assign nonexistent symbol %s", line + 9);
149 break;
150 } else if (!(sym->flags & SYMBOL_NEW)) {
151 conf_warning("trying to reassign symbol %s", sym->name);
152 break;
153 }
154 switch (sym->type) {
155 case S_BOOLEAN:
156 case S_TRISTATE:
157 sym->user.tri = no;
158 sym->flags &= ~SYMBOL_NEW;
159 break;
160 default:
161 ;
162 }
163 break;
164 case 'C':
165 if (memcmp(line, "CONFIG_", 7)) {
166 conf_warning("unexpected data");
167 continue;
168 }
169 p = strchr(line + 7, '=');
170 if (!p)
171 continue;
172 *p++ = 0;
173 p2 = strchr(p, '\n');
174 if (p2)
175 *p2 = 0;
176 sym = sym_find(line + 7);
177 if (!sym) {
178 conf_warning("trying to assign nonexistent symbol %s", line + 7);
179 break;
180 } else if (!(sym->flags & SYMBOL_NEW)) {
181 conf_warning("trying to reassign symbol %s", sym->name);
182 break;
183 }
184 switch (sym->type) {
185 case S_TRISTATE:
186 if (p[0] == 'm') {
187 sym->user.tri = mod;
188 sym->flags &= ~SYMBOL_NEW;
189 break;
190 }
191 case S_BOOLEAN:
192 if (p[0] == 'y') {
193 sym->user.tri = yes;
194 sym->flags &= ~SYMBOL_NEW;
195 break;
196 }
197 if (p[0] == 'n') {
198 sym->user.tri = no;
199 sym->flags &= ~SYMBOL_NEW;
200 break;
201 }
202 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
203 break;
204 case S_STRING:
205 if (*p++ != '"')
206 break;
207 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
208 if (*p2 == '"') {
209 *p2 = 0;
210 break;
211 }
212 memmove(p2, p2 + 1, strlen(p2));
213 }
214 if (!p2) {
215 conf_warning("invalid string found");
216 continue;
217 }
218 case S_INT:
219 case S_HEX:
220 if (sym_string_valid(sym, p)) {
221 sym->user.val = strdup(p);
222 sym->flags &= ~SYMBOL_NEW;
223 } else {
224 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
225 continue;
226 }
227 break;
228 default:
229 ;
230 }
231 break;
232 case '\n':
233 break;
234 default:
235 conf_warning("unexpected data");
236 continue;
237 }
238 if (sym && sym_is_choice_value(sym)) {
239 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
240 switch (sym->user.tri) {
241 case no:
242 break;
243 case mod:
244 if (cs->user.tri == yes) {
245 conf_warning("%s creates inconsistent choice state", sym->name);
246 cs->flags |= SYMBOL_NEW;
247 }
248 break;
249 case yes:
250 if (cs->user.tri != no) {
251 conf_warning("%s creates inconsistent choice state", sym->name);
252 cs->flags |= SYMBOL_NEW;
253 } else
254 cs->user.val = sym;
255 break;
256 }
257 cs->user.tri = E_OR(cs->user.tri, sym->user.tri);
258 }
259 }
260 fclose(in);
261
262 if (modules_sym)
263 sym_calc_value(modules_sym);
264 return 0;
265 }
266
267 int conf_read(const char *name)
268 {
269 struct symbol *sym;
270 struct property *prop;
271 struct expr *e;
272 int i;
273
274 if (conf_read_simple(name))
275 return 1;
276
277 for_all_symbols(i, sym) {
278 sym_calc_value(sym);
279 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
280 goto sym_ok;
281 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
282 /* check that calculated value agrees with saved value */
283 switch (sym->type) {
284 case S_BOOLEAN:
285 case S_TRISTATE:
286 if (sym->user.tri != sym_get_tristate_value(sym))
287 break;
288 if (!sym_is_choice(sym))
289 goto sym_ok;
290 default:
291 if (!strcmp(sym->curr.val, sym->user.val))
292 goto sym_ok;
293 break;
294 }
295 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
296 /* no previous value and not saved */
297 goto sym_ok;
298 conf_unsaved++;
299 /* maybe print value in verbose mode... */
300 sym_ok:
301 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
302 if (sym->visible == no)
303 sym->flags |= SYMBOL_NEW;
304 switch (sym->type) {
305 case S_STRING:
306 case S_INT:
307 case S_HEX:
308 if (!sym_string_within_range(sym, sym->user.val)) {
309 sym->flags |= SYMBOL_NEW;
310 sym->flags &= ~SYMBOL_VALID;
311 }
312 default:
313 break;
314 }
315 }
316 if (!sym_is_choice(sym))
317 continue;
318 prop = sym_get_choice_prop(sym);
319 for (e = prop->expr; e; e = e->left.expr)
320 if (e->right.sym->visible != no)
321 sym->flags |= e->right.sym->flags & SYMBOL_NEW;
322 }
323
324 sym_change_count = conf_warnings || conf_unsaved;
325
326 return 0;
327 }
328
329 int conf_write(const char *name)
330 {
331 FILE *out, *out_h;
332 struct symbol *sym;
333 struct menu *menu;
334 const char *basename;
335 char dirname[128], tmpname[128], newname[128];
336 int type, l;
337 const char *str;
338 time_t now;
339 int use_timestamp = 1;
340 char *env;
341
342 dirname[0] = 0;
343 if (name && name[0]) {
344 struct stat st;
345 char *slash;
346
347 if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
348 strcpy(dirname, name);
349 strcat(dirname, "/");
350 basename = conf_def_filename;
351 } else if ((slash = strrchr(name, '/'))) {
352 int size = slash - name + 1;
353 memcpy(dirname, name, size);
354 dirname[size] = 0;
355 if (slash[1])
356 basename = slash + 1;
357 else
358 basename = conf_def_filename;
359 } else
360 basename = name;
361 } else
362 basename = conf_def_filename;
363
364 sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid());
365 out = fopen(newname, "w");
366 if (!out)
367 return 1;
368 out_h = NULL;
369 if (!name) {
370 out_h = fopen(".tmpconfig.h", "w");
371 if (!out_h)
372 return 1;
373 file_write_dep(NULL);
374 }
375 sym = sym_lookup("KERNELVERSION", 0);
376 sym_calc_value(sym);
377 time(&now);
378 env = getenv("KCONFIG_NOTIMESTAMP");
379 if (env && *env)
380 use_timestamp = 0;
381
382 fprintf(out, _("#\n"
383 "# Automatically generated make config: don't edit\n"
384 "# Buildrom version: %s\n"
385 "%s%s"
386 "#\n"),
387 sym_get_string_value(sym),
388 use_timestamp ? "# " : "",
389 use_timestamp ? ctime(&now) : "");
390 if (out_h) {
391 char buf[sizeof("#define AUTOCONF_TIMESTAMP "
392 "\"YYYY-MM-DD HH:MM:SS some_timezone\"\n")];
393 buf[0] = '\0';
394 if (use_timestamp) {
395 size_t ret = \
396 strftime(buf, sizeof(buf), "#define AUTOCONF_TIMESTAMP "
397 "\"%Y-%m-%d %H:%M:%S %Z\"\n", localtime(&now));
398 /* if user has Factory timezone or some other odd install, the
399 * %Z above will overflow the string leaving us with undefined
400 * results ... so let's try again without the timezone.
401 */
402 if (ret == 0)
403 strftime(buf, sizeof(buf), "#define AUTOCONF_TIMESTAMP "
404 "\"%Y-%m-%d %H:%M:%S\"\n", localtime(&now));
405 }
406 fprintf(out_h, "/*\n"
407 " * Automatically generated C config: don't edit\n"
408 " * Buildrom version: %s\n"
409 " */\n"
410 "%s"
411 "\n",
412 sym_get_string_value(sym),
413 buf);
414 }
415 if (!sym_change_count)
416 sym_clear_all_valid();
417
418 menu = rootmenu.list;
419 while (menu) {
420 sym = menu->sym;
421 if (!sym) {
422 if (!menu_is_visible(menu))
423 goto next;
424 str = menu_get_prompt(menu);
425 fprintf(out, "\n"
426 "#\n"
427 "# %s\n"
428 "#\n", str);
429 if (out_h)
430 fprintf(out_h, "\n"
431 "/*\n"
432 " * %s\n"
433 " */\n", str);
434 } else if (!(sym->flags & SYMBOL_CHOICE)) {
435 sym_calc_value(sym);
436 /* bbox: we want to all syms
437 if (!(sym->flags & SYMBOL_WRITE))
438 goto next;
439 */
440 sym->flags &= ~SYMBOL_WRITE;
441 type = sym->type;
442 if (type == S_TRISTATE) {
443 sym_calc_value(modules_sym);
444 if (modules_sym->curr.tri == no)
445 type = S_BOOLEAN;
446 }
447 switch (type) {
448 case S_BOOLEAN:
449 case S_TRISTATE:
450 switch (sym_get_tristate_value(sym)) {
451 case no:
452 fprintf(out, "# CONFIG_%s is not set\n", sym->name);
453 if (out_h) {
454 fprintf(out_h, "#undef CONFIG_%s\n", sym->name);
455 /* bbox */
456 fprintf(out_h, "#define ENABLE_%s 0\n", sym->name);
457 fprintf(out_h, "#define USE_%s(...)\n", sym->name);
458 fprintf(out_h, "#define SKIP_%s(...) __VA_ARGS__\n", sym->name);
459 }
460 break;
461 case mod:
462 fprintf(out, "CONFIG_%s=m\n", sym->name);
463 if (out_h)
464 fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
465 break;
466 case yes:
467 fprintf(out, "CONFIG_%s=y\n", sym->name);
468 if (out_h) {
469 fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
470 /* bbox */
471 fprintf(out_h, "#define ENABLE_%s 1\n", sym->name);
472 fprintf(out_h, "#define USE_%s(...) __VA_ARGS__\n", sym->name);
473 fprintf(out_h, "#define SKIP_%s(...)\n", sym->name);
474 }
475 break;
476 }
477 break;
478 case S_STRING:
479 // fix me
480 str = sym_get_string_value(sym);
481 fprintf(out, "CONFIG_%s=\"", sym->name);
482 if (out_h)
483 fprintf(out_h, "#define CONFIG_%s \"", sym->name);
484 do {
485 l = strcspn(str, "\"\\");
486 if (l) {
487 fwrite(str, l, 1, out);
488 if (out_h)
489 fwrite(str, l, 1, out_h);
490 }
491 str += l;
492 while (*str == '\\' || *str == '"') {
493 fprintf(out, "\\%c", *str);
494 if (out_h)
495 fprintf(out_h, "\\%c", *str);
496 str++;
497 }
498 } while (*str);
499 fputs("\"\n", out);
500 if (out_h) {
501 fputs("\"\n", out_h);
502 /* bbox */
503 fprintf(out_h, "#define ENABLE_%s 1\n", sym->name);
504 fprintf(out_h, "#define USE_%s(...) __VA_ARGS__\n", sym->name);
505 fprintf(out_h, "#define SKIP_%s(...)\n", sym->name);
506 }
507 break;
508 case S_HEX:
509 str = sym_get_string_value(sym);
510 if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
511 fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
512 if (out_h) {
513 fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
514 /* bbox */
515 fprintf(out_h, "#define ENABLE_%s 1\n", sym->name);
516 fprintf(out_h, "#define USE_%s(...) __VA_ARGS__\n", sym->name);
517 fprintf(out_h, "#define SKIP_%s(...)\n", sym->name);
518 }
519 break;
520 }
521 case S_INT:
522 str = sym_get_string_value(sym);
523 fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
524 if (out_h) {
525 fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
526 /* bbox */
527 fprintf(out_h, "#define ENABLE_%s 1\n", sym->name);
528 fprintf(out_h, "#define USE_%s(...) __VA_ARGS__\n", sym->name);
529 fprintf(out_h, "#define SKIP_%s(...)\n", sym->name);
530 }
531 break;
532 }
533 }
534
535 next:
536 if (menu->list) {
537 menu = menu->list;
538 continue;
539 }
540 if (menu->next)
541 menu = menu->next;
542 else while ((menu = menu->parent)) {
543 if (menu->next) {
544 menu = menu->next;
545 break;
546 }
547 }
548 }
549 fclose(out);
550 if (out_h) {
551 fclose(out_h);
552 rename(".tmpconfig.h", "include/autoconf.h");
553 }
554 if (!name || basename != conf_def_filename) {
555 if (!name)
556 name = conf_def_filename;
557 sprintf(tmpname, "%s.old", name);
558 rename(name, tmpname);
559 }
560 sprintf(tmpname, "%s%s", dirname, basename);
561 if (rename(newname, tmpname))
562 return 1;
563
564 sym_change_count = 0;
565
566 return 0;
567 }
Virtualization-aware BIOS