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Commit | Line | Data |
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1da177e4 LT |
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> | |
2e3646e5 | 8 | #include <fcntl.h> |
1da177e4 LT |
9 | #include <stdio.h> |
10 | #include <stdlib.h> | |
11 | #include <string.h> | |
12 | #include <time.h> | |
13 | #include <unistd.h> | |
14 | ||
15 | #define LKC_DIRECT_LINK | |
16 | #include "lkc.h" | |
17 | ||
c1a0f5e3 RZ |
18 | static void conf_warning(const char *fmt, ...) |
19 | __attribute__ ((format (printf, 1, 2))); | |
20 | ||
21 | static const char *conf_filename; | |
22 | static int conf_lineno, conf_warnings, conf_unsaved; | |
23 | ||
1da177e4 LT |
24 | const char conf_defname[] = "arch/$ARCH/defconfig"; |
25 | ||
c1a0f5e3 RZ |
26 | static void conf_warning(const char *fmt, ...) |
27 | { | |
28 | va_list ap; | |
29 | va_start(ap, fmt); | |
30 | fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); | |
31 | vfprintf(stderr, fmt, ap); | |
32 | fprintf(stderr, "\n"); | |
33 | va_end(ap); | |
34 | conf_warnings++; | |
35 | } | |
36 | ||
14cdd3c4 RZ |
37 | const char *conf_get_configname(void) |
38 | { | |
39 | char *name = getenv("KCONFIG_CONFIG"); | |
40 | ||
41 | return name ? name : ".config"; | |
42 | } | |
43 | ||
12122f62 MH |
44 | const char *conf_get_autoconfig_name(void) |
45 | { | |
46 | char *name = getenv("KCONFIG_AUTOCONFIG"); | |
47 | ||
48 | return name ? name : "include/config/auto.conf"; | |
49 | } | |
50 | ||
48b9d03c | 51 | static char *conf_expand_value(const char *in) |
1da177e4 LT |
52 | { |
53 | struct symbol *sym; | |
48b9d03c | 54 | const char *src; |
1da177e4 LT |
55 | static char res_value[SYMBOL_MAXLENGTH]; |
56 | char *dst, name[SYMBOL_MAXLENGTH]; | |
57 | ||
58 | res_value[0] = 0; | |
59 | dst = name; | |
60 | while ((src = strchr(in, '$'))) { | |
61 | strncat(res_value, in, src - in); | |
62 | src++; | |
63 | dst = name; | |
64 | while (isalnum(*src) || *src == '_') | |
65 | *dst++ = *src++; | |
66 | *dst = 0; | |
67 | sym = sym_lookup(name, 0); | |
68 | sym_calc_value(sym); | |
69 | strcat(res_value, sym_get_string_value(sym)); | |
70 | in = src; | |
71 | } | |
72 | strcat(res_value, in); | |
73 | ||
74 | return res_value; | |
75 | } | |
76 | ||
77 | char *conf_get_default_confname(void) | |
78 | { | |
79 | struct stat buf; | |
80 | static char fullname[PATH_MAX+1]; | |
81 | char *env, *name; | |
82 | ||
83 | name = conf_expand_value(conf_defname); | |
84 | env = getenv(SRCTREE); | |
85 | if (env) { | |
86 | sprintf(fullname, "%s/%s", env, name); | |
87 | if (!stat(fullname, &buf)) | |
88 | return fullname; | |
89 | } | |
90 | return name; | |
91 | } | |
92 | ||
9c900a9c SR |
93 | static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) |
94 | { | |
95 | char *p2; | |
96 | ||
97 | switch (sym->type) { | |
98 | case S_TRISTATE: | |
99 | if (p[0] == 'm') { | |
100 | sym->def[def].tri = mod; | |
101 | sym->flags |= def_flags; | |
102 | break; | |
103 | } | |
104 | case S_BOOLEAN: | |
105 | if (p[0] == 'y') { | |
106 | sym->def[def].tri = yes; | |
107 | sym->flags |= def_flags; | |
108 | break; | |
109 | } | |
110 | if (p[0] == 'n') { | |
111 | sym->def[def].tri = no; | |
112 | sym->flags |= def_flags; | |
113 | break; | |
114 | } | |
115 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
116 | break; | |
117 | case S_OTHER: | |
118 | if (*p != '"') { | |
119 | for (p2 = p; *p2 && !isspace(*p2); p2++) | |
120 | ; | |
121 | sym->type = S_STRING; | |
122 | goto done; | |
123 | } | |
124 | case S_STRING: | |
125 | if (*p++ != '"') | |
126 | break; | |
127 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { | |
128 | if (*p2 == '"') { | |
129 | *p2 = 0; | |
130 | break; | |
131 | } | |
132 | memmove(p2, p2 + 1, strlen(p2)); | |
133 | } | |
134 | if (!p2) { | |
135 | conf_warning("invalid string found"); | |
136 | return 1; | |
137 | } | |
138 | case S_INT: | |
139 | case S_HEX: | |
140 | done: | |
141 | if (sym_string_valid(sym, p)) { | |
142 | sym->def[def].val = strdup(p); | |
143 | sym->flags |= def_flags; | |
144 | } else { | |
145 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
146 | return 1; | |
147 | } | |
148 | break; | |
149 | default: | |
150 | ; | |
151 | } | |
152 | return 0; | |
153 | } | |
154 | ||
669bfad9 | 155 | int conf_read_simple(const char *name, int def) |
1da177e4 LT |
156 | { |
157 | FILE *in = NULL; | |
158 | char line[1024]; | |
159 | char *p, *p2; | |
1da177e4 | 160 | struct symbol *sym; |
669bfad9 | 161 | int i, def_flags; |
1da177e4 LT |
162 | |
163 | if (name) { | |
164 | in = zconf_fopen(name); | |
165 | } else { | |
face4374 RZ |
166 | struct property *prop; |
167 | ||
14cdd3c4 | 168 | name = conf_get_configname(); |
ddc97cac RZ |
169 | in = zconf_fopen(name); |
170 | if (in) | |
171 | goto load; | |
bfc10001 | 172 | sym_add_change_count(1); |
face4374 RZ |
173 | if (!sym_defconfig_list) |
174 | return 1; | |
175 | ||
176 | for_all_defaults(sym_defconfig_list, prop) { | |
177 | if (expr_calc_value(prop->visible.expr) == no || | |
178 | prop->expr->type != E_SYMBOL) | |
179 | continue; | |
180 | name = conf_expand_value(prop->expr->left.sym->name); | |
1da177e4 LT |
181 | in = zconf_fopen(name); |
182 | if (in) { | |
3b9fa093 | 183 | printf(_("#\n" |
ddc97cac RZ |
184 | "# using defaults found in %s\n" |
185 | "#\n"), name); | |
186 | goto load; | |
1da177e4 LT |
187 | } |
188 | } | |
189 | } | |
1da177e4 LT |
190 | if (!in) |
191 | return 1; | |
192 | ||
ddc97cac | 193 | load: |
c1a0f5e3 RZ |
194 | conf_filename = name; |
195 | conf_lineno = 0; | |
196 | conf_warnings = 0; | |
197 | conf_unsaved = 0; | |
198 | ||
669bfad9 | 199 | def_flags = SYMBOL_DEF << def; |
1da177e4 | 200 | for_all_symbols(i, sym) { |
669bfad9 RZ |
201 | sym->flags |= SYMBOL_CHANGED; |
202 | sym->flags &= ~(def_flags|SYMBOL_VALID); | |
c1a0f5e3 | 203 | if (sym_is_choice(sym)) |
669bfad9 | 204 | sym->flags |= def_flags; |
1da177e4 LT |
205 | switch (sym->type) { |
206 | case S_INT: | |
207 | case S_HEX: | |
208 | case S_STRING: | |
669bfad9 RZ |
209 | if (sym->def[def].val) |
210 | free(sym->def[def].val); | |
1da177e4 | 211 | default: |
669bfad9 RZ |
212 | sym->def[def].val = NULL; |
213 | sym->def[def].tri = no; | |
1da177e4 LT |
214 | } |
215 | } | |
216 | ||
217 | while (fgets(line, sizeof(line), in)) { | |
c1a0f5e3 | 218 | conf_lineno++; |
1da177e4 LT |
219 | sym = NULL; |
220 | switch (line[0]) { | |
221 | case '#': | |
222 | if (memcmp(line + 2, "CONFIG_", 7)) | |
223 | continue; | |
224 | p = strchr(line + 9, ' '); | |
225 | if (!p) | |
226 | continue; | |
227 | *p++ = 0; | |
228 | if (strncmp(p, "is not set", 10)) | |
229 | continue; | |
669bfad9 RZ |
230 | if (def == S_DEF_USER) { |
231 | sym = sym_find(line + 9); | |
661b0680 | 232 | if (!sym) { |
233 | sym_add_change_count(1); | |
669bfad9 | 234 | break; |
661b0680 | 235 | } |
669bfad9 RZ |
236 | } else { |
237 | sym = sym_lookup(line + 9, 0); | |
238 | if (sym->type == S_UNKNOWN) | |
239 | sym->type = S_BOOLEAN; | |
240 | } | |
241 | if (sym->flags & def_flags) { | |
d84876f9 | 242 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 LT |
243 | } |
244 | switch (sym->type) { | |
245 | case S_BOOLEAN: | |
246 | case S_TRISTATE: | |
669bfad9 RZ |
247 | sym->def[def].tri = no; |
248 | sym->flags |= def_flags; | |
1da177e4 LT |
249 | break; |
250 | default: | |
251 | ; | |
252 | } | |
253 | break; | |
254 | case 'C': | |
c1a0f5e3 RZ |
255 | if (memcmp(line, "CONFIG_", 7)) { |
256 | conf_warning("unexpected data"); | |
1da177e4 | 257 | continue; |
c1a0f5e3 | 258 | } |
1da177e4 LT |
259 | p = strchr(line + 7, '='); |
260 | if (!p) | |
261 | continue; | |
262 | *p++ = 0; | |
263 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
264 | if (p2) { |
265 | *p2-- = 0; | |
266 | if (*p2 == '\r') | |
267 | *p2 = 0; | |
268 | } | |
669bfad9 RZ |
269 | if (def == S_DEF_USER) { |
270 | sym = sym_find(line + 7); | |
661b0680 | 271 | if (!sym) { |
272 | sym_add_change_count(1); | |
669bfad9 | 273 | break; |
661b0680 | 274 | } |
669bfad9 RZ |
275 | } else { |
276 | sym = sym_lookup(line + 7, 0); | |
277 | if (sym->type == S_UNKNOWN) | |
278 | sym->type = S_OTHER; | |
279 | } | |
280 | if (sym->flags & def_flags) { | |
d84876f9 | 281 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 282 | } |
9c900a9c SR |
283 | if (conf_set_sym_val(sym, def, def_flags, p)) |
284 | continue; | |
1da177e4 | 285 | break; |
d3660a8c | 286 | case '\r': |
1da177e4 LT |
287 | case '\n': |
288 | break; | |
289 | default: | |
c1a0f5e3 | 290 | conf_warning("unexpected data"); |
1da177e4 LT |
291 | continue; |
292 | } | |
293 | if (sym && sym_is_choice_value(sym)) { | |
294 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 295 | switch (sym->def[def].tri) { |
1da177e4 LT |
296 | case no: |
297 | break; | |
298 | case mod: | |
669bfad9 | 299 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 300 | conf_warning("%s creates inconsistent choice state", sym->name); |
669bfad9 | 301 | cs->flags &= ~def_flags; |
c1a0f5e3 | 302 | } |
1da177e4 LT |
303 | break; |
304 | case yes: | |
d84876f9 JE |
305 | if (cs->def[def].tri != no) |
306 | conf_warning("override: %s changes choice state", sym->name); | |
307 | cs->def[def].val = sym; | |
1da177e4 LT |
308 | break; |
309 | } | |
d6ee3576 | 310 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
311 | } |
312 | } | |
313 | fclose(in); | |
314 | ||
315 | if (modules_sym) | |
316 | sym_calc_value(modules_sym); | |
90389160 RZ |
317 | return 0; |
318 | } | |
319 | ||
320 | int conf_read(const char *name) | |
321 | { | |
7a962923 | 322 | struct symbol *sym, *choice_sym; |
90389160 RZ |
323 | struct property *prop; |
324 | struct expr *e; | |
669bfad9 | 325 | int i, flags; |
90389160 | 326 | |
bfc10001 | 327 | sym_set_change_count(0); |
ddc97cac | 328 | |
669bfad9 | 329 | if (conf_read_simple(name, S_DEF_USER)) |
90389160 RZ |
330 | return 1; |
331 | ||
1da177e4 LT |
332 | for_all_symbols(i, sym) { |
333 | sym_calc_value(sym); | |
c1a0f5e3 RZ |
334 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
335 | goto sym_ok; | |
336 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { | |
337 | /* check that calculated value agrees with saved value */ | |
338 | switch (sym->type) { | |
339 | case S_BOOLEAN: | |
340 | case S_TRISTATE: | |
0c1822e6 | 341 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
342 | break; |
343 | if (!sym_is_choice(sym)) | |
344 | goto sym_ok; | |
345 | default: | |
0c1822e6 | 346 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
c1a0f5e3 RZ |
347 | goto sym_ok; |
348 | break; | |
349 | } | |
350 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
351 | /* no previous value and not saved */ | |
352 | goto sym_ok; | |
353 | conf_unsaved++; | |
354 | /* maybe print value in verbose mode... */ | |
355 | sym_ok: | |
d8982ba1 RZ |
356 | if (!sym_is_choice(sym)) |
357 | continue; | |
358 | /* The choice symbol only has a set value (and thus is not new) | |
359 | * if all its visible childs have values. | |
360 | */ | |
361 | prop = sym_get_choice_prop(sym); | |
362 | flags = sym->flags; | |
7a962923 RZ |
363 | expr_list_for_each_sym(prop->expr, e, choice_sym) |
364 | if (choice_sym->visible != no) | |
365 | flags &= choice_sym->flags; | |
d8982ba1 RZ |
366 | sym->flags &= flags | ~SYMBOL_DEF_USER; |
367 | } | |
368 | ||
369 | for_all_symbols(i, sym) { | |
1da177e4 | 370 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
371 | /* Reset values of generates values, so they'll appear |
372 | * as new, if they should become visible, but that | |
373 | * doesn't quite work if the Kconfig and the saved | |
374 | * configuration disagree. | |
375 | */ | |
376 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 377 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
378 | switch (sym->type) { |
379 | case S_STRING: | |
380 | case S_INT: | |
381 | case S_HEX: | |
d8982ba1 RZ |
382 | /* Reset a string value if it's out of range */ |
383 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
384 | break; | |
385 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
386 | conf_unsaved++; | |
387 | break; | |
1da177e4 LT |
388 | default: |
389 | break; | |
390 | } | |
391 | } | |
1da177e4 LT |
392 | } |
393 | ||
bfc10001 | 394 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
395 | |
396 | return 0; | |
397 | } | |
398 | ||
399 | int conf_write(const char *name) | |
400 | { | |
c955ccaf | 401 | FILE *out; |
1da177e4 LT |
402 | struct symbol *sym; |
403 | struct menu *menu; | |
404 | const char *basename; | |
405 | char dirname[128], tmpname[128], newname[128]; | |
406 | int type, l; | |
407 | const char *str; | |
408 | time_t now; | |
409 | int use_timestamp = 1; | |
410 | char *env; | |
411 | ||
412 | dirname[0] = 0; | |
413 | if (name && name[0]) { | |
414 | struct stat st; | |
415 | char *slash; | |
416 | ||
417 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
418 | strcpy(dirname, name); | |
419 | strcat(dirname, "/"); | |
14cdd3c4 | 420 | basename = conf_get_configname(); |
1da177e4 LT |
421 | } else if ((slash = strrchr(name, '/'))) { |
422 | int size = slash - name + 1; | |
423 | memcpy(dirname, name, size); | |
424 | dirname[size] = 0; | |
425 | if (slash[1]) | |
426 | basename = slash + 1; | |
427 | else | |
14cdd3c4 | 428 | basename = conf_get_configname(); |
1da177e4 LT |
429 | } else |
430 | basename = name; | |
431 | } else | |
14cdd3c4 | 432 | basename = conf_get_configname(); |
1da177e4 | 433 | |
14cdd3c4 RZ |
434 | sprintf(newname, "%s%s", dirname, basename); |
435 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
436 | if (!env || !*env) { | |
437 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
438 | out = fopen(tmpname, "w"); | |
439 | } else { | |
440 | *tmpname = 0; | |
441 | out = fopen(newname, "w"); | |
442 | } | |
1da177e4 LT |
443 | if (!out) |
444 | return 1; | |
14cdd3c4 | 445 | |
2244cbd8 | 446 | sym = sym_lookup("KERNELVERSION", 0); |
1da177e4 LT |
447 | sym_calc_value(sym); |
448 | time(&now); | |
449 | env = getenv("KCONFIG_NOTIMESTAMP"); | |
450 | if (env && *env) | |
451 | use_timestamp = 0; | |
452 | ||
3b9fa093 ACM |
453 | fprintf(out, _("#\n" |
454 | "# Automatically generated make config: don't edit\n" | |
455 | "# Linux kernel version: %s\n" | |
456 | "%s%s" | |
457 | "#\n"), | |
1da177e4 LT |
458 | sym_get_string_value(sym), |
459 | use_timestamp ? "# " : "", | |
460 | use_timestamp ? ctime(&now) : ""); | |
1da177e4 | 461 | |
b3214293 | 462 | if (!conf_get_changed()) |
1da177e4 LT |
463 | sym_clear_all_valid(); |
464 | ||
465 | menu = rootmenu.list; | |
466 | while (menu) { | |
467 | sym = menu->sym; | |
468 | if (!sym) { | |
469 | if (!menu_is_visible(menu)) | |
470 | goto next; | |
471 | str = menu_get_prompt(menu); | |
472 | fprintf(out, "\n" | |
473 | "#\n" | |
474 | "# %s\n" | |
475 | "#\n", str); | |
1da177e4 LT |
476 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
477 | sym_calc_value(sym); | |
478 | if (!(sym->flags & SYMBOL_WRITE)) | |
479 | goto next; | |
480 | sym->flags &= ~SYMBOL_WRITE; | |
481 | type = sym->type; | |
482 | if (type == S_TRISTATE) { | |
483 | sym_calc_value(modules_sym); | |
484 | if (modules_sym->curr.tri == no) | |
485 | type = S_BOOLEAN; | |
486 | } | |
487 | switch (type) { | |
488 | case S_BOOLEAN: | |
489 | case S_TRISTATE: | |
490 | switch (sym_get_tristate_value(sym)) { | |
491 | case no: | |
492 | fprintf(out, "# CONFIG_%s is not set\n", sym->name); | |
1da177e4 LT |
493 | break; |
494 | case mod: | |
495 | fprintf(out, "CONFIG_%s=m\n", sym->name); | |
1da177e4 LT |
496 | break; |
497 | case yes: | |
498 | fprintf(out, "CONFIG_%s=y\n", sym->name); | |
1da177e4 LT |
499 | break; |
500 | } | |
501 | break; | |
502 | case S_STRING: | |
1da177e4 LT |
503 | str = sym_get_string_value(sym); |
504 | fprintf(out, "CONFIG_%s=\"", sym->name); | |
c955ccaf | 505 | while (1) { |
1da177e4 LT |
506 | l = strcspn(str, "\"\\"); |
507 | if (l) { | |
508 | fwrite(str, l, 1, out); | |
c955ccaf | 509 | str += l; |
1da177e4 | 510 | } |
c955ccaf RZ |
511 | if (!*str) |
512 | break; | |
513 | fprintf(out, "\\%c", *str++); | |
514 | } | |
1da177e4 | 515 | fputs("\"\n", out); |
1da177e4 LT |
516 | break; |
517 | case S_HEX: | |
518 | str = sym_get_string_value(sym); | |
519 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { | |
520 | fprintf(out, "CONFIG_%s=%s\n", sym->name, str); | |
1da177e4 LT |
521 | break; |
522 | } | |
523 | case S_INT: | |
524 | str = sym_get_string_value(sym); | |
525 | fprintf(out, "CONFIG_%s=%s\n", sym->name, str); | |
1da177e4 LT |
526 | break; |
527 | } | |
528 | } | |
529 | ||
530 | next: | |
531 | if (menu->list) { | |
532 | menu = menu->list; | |
533 | continue; | |
534 | } | |
535 | if (menu->next) | |
536 | menu = menu->next; | |
537 | else while ((menu = menu->parent)) { | |
538 | if (menu->next) { | |
539 | menu = menu->next; | |
540 | break; | |
541 | } | |
542 | } | |
543 | } | |
544 | fclose(out); | |
14cdd3c4 RZ |
545 | |
546 | if (*tmpname) { | |
9a3d0fe8 | 547 | strcat(dirname, basename); |
14cdd3c4 RZ |
548 | strcat(dirname, ".old"); |
549 | rename(newname, dirname); | |
550 | if (rename(tmpname, newname)) | |
551 | return 1; | |
1da177e4 | 552 | } |
1da177e4 | 553 | |
ddc97cac RZ |
554 | printf(_("#\n" |
555 | "# configuration written to %s\n" | |
14cdd3c4 | 556 | "#\n"), newname); |
ddc97cac | 557 | |
bfc10001 | 558 | sym_set_change_count(0); |
1da177e4 LT |
559 | |
560 | return 0; | |
561 | } | |
c955ccaf | 562 | |
4356f489 | 563 | static int conf_split_config(void) |
2e3646e5 | 564 | { |
12122f62 MH |
565 | const char *name; |
566 | char path[128]; | |
2e3646e5 RZ |
567 | char *s, *d, c; |
568 | struct symbol *sym; | |
569 | struct stat sb; | |
570 | int res, i, fd; | |
571 | ||
12122f62 | 572 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
573 | conf_read_simple(name, S_DEF_AUTO); |
574 | ||
575 | if (chdir("include/config")) | |
576 | return 1; | |
577 | ||
578 | res = 0; | |
579 | for_all_symbols(i, sym) { | |
580 | sym_calc_value(sym); | |
581 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
582 | continue; | |
583 | if (sym->flags & SYMBOL_WRITE) { | |
584 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
585 | /* | |
586 | * symbol has old and new value, | |
587 | * so compare them... | |
588 | */ | |
589 | switch (sym->type) { | |
590 | case S_BOOLEAN: | |
591 | case S_TRISTATE: | |
592 | if (sym_get_tristate_value(sym) == | |
593 | sym->def[S_DEF_AUTO].tri) | |
594 | continue; | |
595 | break; | |
596 | case S_STRING: | |
597 | case S_HEX: | |
598 | case S_INT: | |
599 | if (!strcmp(sym_get_string_value(sym), | |
600 | sym->def[S_DEF_AUTO].val)) | |
601 | continue; | |
602 | break; | |
603 | default: | |
604 | break; | |
605 | } | |
606 | } else { | |
607 | /* | |
608 | * If there is no old value, only 'no' (unset) | |
609 | * is allowed as new value. | |
610 | */ | |
611 | switch (sym->type) { | |
612 | case S_BOOLEAN: | |
613 | case S_TRISTATE: | |
614 | if (sym_get_tristate_value(sym) == no) | |
615 | continue; | |
616 | break; | |
617 | default: | |
618 | break; | |
619 | } | |
620 | } | |
621 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
622 | /* There is neither an old nor a new value. */ | |
623 | continue; | |
624 | /* else | |
625 | * There is an old value, but no new value ('no' (unset) | |
626 | * isn't saved in auto.conf, so the old value is always | |
627 | * different from 'no'). | |
628 | */ | |
629 | ||
630 | /* Replace all '_' and append ".h" */ | |
631 | s = sym->name; | |
632 | d = path; | |
633 | while ((c = *s++)) { | |
634 | c = tolower(c); | |
635 | *d++ = (c == '_') ? '/' : c; | |
636 | } | |
637 | strcpy(d, ".h"); | |
638 | ||
639 | /* Assume directory path already exists. */ | |
640 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
641 | if (fd == -1) { | |
642 | if (errno != ENOENT) { | |
643 | res = 1; | |
644 | break; | |
645 | } | |
646 | /* | |
647 | * Create directory components, | |
648 | * unless they exist already. | |
649 | */ | |
650 | d = path; | |
651 | while ((d = strchr(d, '/'))) { | |
652 | *d = 0; | |
653 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
654 | res = 1; | |
655 | goto out; | |
656 | } | |
657 | *d++ = '/'; | |
658 | } | |
659 | /* Try it again. */ | |
660 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
661 | if (fd == -1) { | |
662 | res = 1; | |
663 | break; | |
664 | } | |
665 | } | |
666 | close(fd); | |
667 | } | |
668 | out: | |
669 | if (chdir("../..")) | |
670 | return 1; | |
671 | ||
672 | return res; | |
673 | } | |
674 | ||
c955ccaf RZ |
675 | int conf_write_autoconf(void) |
676 | { | |
677 | struct symbol *sym; | |
678 | const char *str; | |
12122f62 | 679 | const char *name; |
c955ccaf RZ |
680 | FILE *out, *out_h; |
681 | time_t now; | |
682 | int i, l; | |
683 | ||
2e3646e5 RZ |
684 | sym_clear_all_valid(); |
685 | ||
c955ccaf RZ |
686 | file_write_dep("include/config/auto.conf.cmd"); |
687 | ||
2e3646e5 RZ |
688 | if (conf_split_config()) |
689 | return 1; | |
690 | ||
c955ccaf RZ |
691 | out = fopen(".tmpconfig", "w"); |
692 | if (!out) | |
693 | return 1; | |
694 | ||
695 | out_h = fopen(".tmpconfig.h", "w"); | |
696 | if (!out_h) { | |
697 | fclose(out); | |
698 | return 1; | |
699 | } | |
700 | ||
701 | sym = sym_lookup("KERNELVERSION", 0); | |
702 | sym_calc_value(sym); | |
703 | time(&now); | |
704 | fprintf(out, "#\n" | |
705 | "# Automatically generated make config: don't edit\n" | |
706 | "# Linux kernel version: %s\n" | |
707 | "# %s" | |
708 | "#\n", | |
709 | sym_get_string_value(sym), ctime(&now)); | |
710 | fprintf(out_h, "/*\n" | |
711 | " * Automatically generated C config: don't edit\n" | |
712 | " * Linux kernel version: %s\n" | |
713 | " * %s" | |
714 | " */\n" | |
715 | "#define AUTOCONF_INCLUDED\n", | |
716 | sym_get_string_value(sym), ctime(&now)); | |
717 | ||
c955ccaf RZ |
718 | for_all_symbols(i, sym) { |
719 | sym_calc_value(sym); | |
720 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) | |
721 | continue; | |
722 | switch (sym->type) { | |
723 | case S_BOOLEAN: | |
724 | case S_TRISTATE: | |
725 | switch (sym_get_tristate_value(sym)) { | |
726 | case no: | |
727 | break; | |
728 | case mod: | |
729 | fprintf(out, "CONFIG_%s=m\n", sym->name); | |
730 | fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name); | |
731 | break; | |
732 | case yes: | |
733 | fprintf(out, "CONFIG_%s=y\n", sym->name); | |
734 | fprintf(out_h, "#define CONFIG_%s 1\n", sym->name); | |
735 | break; | |
736 | } | |
737 | break; | |
738 | case S_STRING: | |
739 | str = sym_get_string_value(sym); | |
740 | fprintf(out, "CONFIG_%s=\"", sym->name); | |
741 | fprintf(out_h, "#define CONFIG_%s \"", sym->name); | |
742 | while (1) { | |
743 | l = strcspn(str, "\"\\"); | |
744 | if (l) { | |
745 | fwrite(str, l, 1, out); | |
746 | fwrite(str, l, 1, out_h); | |
747 | str += l; | |
748 | } | |
749 | if (!*str) | |
750 | break; | |
751 | fprintf(out, "\\%c", *str); | |
752 | fprintf(out_h, "\\%c", *str); | |
753 | str++; | |
754 | } | |
755 | fputs("\"\n", out); | |
756 | fputs("\"\n", out_h); | |
757 | break; | |
758 | case S_HEX: | |
759 | str = sym_get_string_value(sym); | |
760 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { | |
761 | fprintf(out, "CONFIG_%s=%s\n", sym->name, str); | |
762 | fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str); | |
763 | break; | |
764 | } | |
765 | case S_INT: | |
766 | str = sym_get_string_value(sym); | |
767 | fprintf(out, "CONFIG_%s=%s\n", sym->name, str); | |
768 | fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str); | |
769 | break; | |
770 | default: | |
771 | break; | |
772 | } | |
773 | } | |
774 | fclose(out); | |
775 | fclose(out_h); | |
776 | ||
777 | name = getenv("KCONFIG_AUTOHEADER"); | |
778 | if (!name) | |
264a2683 | 779 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
780 | if (rename(".tmpconfig.h", name)) |
781 | return 1; | |
12122f62 | 782 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
783 | /* |
784 | * This must be the last step, kbuild has a dependency on auto.conf | |
785 | * and this marks the successful completion of the previous steps. | |
786 | */ | |
787 | if (rename(".tmpconfig", name)) | |
788 | return 1; | |
789 | ||
790 | return 0; | |
791 | } | |
b3214293 | 792 | |
bfc10001 | 793 | static int sym_change_count; |
3b354c55 | 794 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
795 | |
796 | void sym_set_change_count(int count) | |
797 | { | |
3b354c55 | 798 | int _sym_change_count = sym_change_count; |
bfc10001 | 799 | sym_change_count = count; |
3b354c55 KW |
800 | if (conf_changed_callback && |
801 | (bool)_sym_change_count != (bool)count) | |
802 | conf_changed_callback(); | |
bfc10001 KW |
803 | } |
804 | ||
805 | void sym_add_change_count(int count) | |
806 | { | |
3b354c55 | 807 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
808 | } |
809 | ||
b3214293 KW |
810 | bool conf_get_changed(void) |
811 | { | |
812 | return sym_change_count; | |
813 | } | |
3b354c55 KW |
814 | |
815 | void conf_set_changed_callback(void (*fn)(void)) | |
816 | { | |
817 | conf_changed_callback = fn; | |
818 | } | |
dc7862e5 RZ |
819 | |
820 | ||
821 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
822 | { | |
823 | struct symbol *sym, *csym; | |
824 | struct property *prop; | |
825 | struct expr *e; | |
826 | int i, cnt, def; | |
827 | ||
828 | for_all_symbols(i, sym) { | |
829 | if (sym_has_value(sym)) | |
830 | continue; | |
831 | switch (sym_get_type(sym)) { | |
832 | case S_BOOLEAN: | |
833 | case S_TRISTATE: | |
834 | switch (mode) { | |
835 | case def_yes: | |
836 | sym->def[S_DEF_USER].tri = yes; | |
837 | break; | |
838 | case def_mod: | |
839 | sym->def[S_DEF_USER].tri = mod; | |
840 | break; | |
841 | case def_no: | |
842 | sym->def[S_DEF_USER].tri = no; | |
843 | break; | |
844 | case def_random: | |
845 | sym->def[S_DEF_USER].tri = (tristate)(rand() % 3); | |
846 | break; | |
847 | default: | |
848 | continue; | |
849 | } | |
184832c9 | 850 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
851 | sym->flags |= SYMBOL_DEF_USER; |
852 | break; | |
853 | default: | |
854 | break; | |
855 | } | |
856 | ||
857 | } | |
858 | ||
ce97e13e | 859 | sym_clear_all_valid(); |
dc7862e5 RZ |
860 | |
861 | if (mode != def_random) | |
862 | return; | |
184832c9 SR |
863 | /* |
864 | * We have different type of choice blocks. | |
865 | * If curr.tri equal to mod then we can select several | |
866 | * choice symbols in one block. | |
867 | * In this case we do nothing. | |
868 | * If curr.tri equal yes then only one symbol can be | |
869 | * selected in a choice block and we set it to yes, | |
870 | * and the rest to no. | |
871 | */ | |
dc7862e5 RZ |
872 | for_all_symbols(i, csym) { |
873 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
874 | continue; | |
875 | ||
876 | sym_calc_value(csym); | |
184832c9 SR |
877 | |
878 | if (csym->curr.tri != yes) | |
879 | continue; | |
880 | ||
dc7862e5 | 881 | prop = sym_get_choice_prop(csym); |
184832c9 SR |
882 | |
883 | /* count entries in choice block */ | |
884 | cnt = 0; | |
885 | expr_list_for_each_sym(prop->expr, e, sym) | |
886 | cnt++; | |
887 | ||
888 | /* | |
889 | * find a random value and set it to yes, | |
890 | * set the rest to no so we have only one set | |
891 | */ | |
892 | def = (rand() % cnt); | |
893 | ||
894 | cnt = 0; | |
895 | expr_list_for_each_sym(prop->expr, e, sym) { | |
896 | if (def == cnt++) { | |
897 | sym->def[S_DEF_USER].tri = yes; | |
898 | csym->def[S_DEF_USER].val = sym; | |
899 | } | |
900 | else { | |
901 | sym->def[S_DEF_USER].tri = no; | |
dc7862e5 | 902 | } |
dc7862e5 RZ |
903 | } |
904 | csym->flags |= SYMBOL_DEF_USER; | |
184832c9 SR |
905 | /* clear VALID to get value calculated */ |
906 | csym->flags &= ~(SYMBOL_VALID); | |
dc7862e5 RZ |
907 | } |
908 | } |