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