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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> | |
94bedeca | 8 | #include <errno.h> |
2e3646e5 | 9 | #include <fcntl.h> |
1da177e4 LT |
10 | #include <stdio.h> |
11 | #include <stdlib.h> | |
12 | #include <string.h> | |
13 | #include <time.h> | |
14 | #include <unistd.h> | |
15 | ||
16 | #define LKC_DIRECT_LINK | |
17 | #include "lkc.h" | |
18 | ||
c1a0f5e3 RZ |
19 | static void conf_warning(const char *fmt, ...) |
20 | __attribute__ ((format (printf, 1, 2))); | |
21 | ||
22 | static const char *conf_filename; | |
23 | static int conf_lineno, conf_warnings, conf_unsaved; | |
24 | ||
1da177e4 LT |
25 | const char conf_defname[] = "arch/$ARCH/defconfig"; |
26 | ||
c1a0f5e3 RZ |
27 | static void conf_warning(const char *fmt, ...) |
28 | { | |
29 | va_list ap; | |
30 | va_start(ap, fmt); | |
31 | fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); | |
32 | vfprintf(stderr, fmt, ap); | |
33 | fprintf(stderr, "\n"); | |
34 | va_end(ap); | |
35 | conf_warnings++; | |
36 | } | |
37 | ||
14cdd3c4 RZ |
38 | const char *conf_get_configname(void) |
39 | { | |
40 | char *name = getenv("KCONFIG_CONFIG"); | |
41 | ||
42 | return name ? name : ".config"; | |
43 | } | |
44 | ||
12122f62 MH |
45 | const char *conf_get_autoconfig_name(void) |
46 | { | |
47 | char *name = getenv("KCONFIG_AUTOCONFIG"); | |
48 | ||
49 | return name ? name : "include/config/auto.conf"; | |
50 | } | |
51 | ||
48b9d03c | 52 | static char *conf_expand_value(const char *in) |
1da177e4 LT |
53 | { |
54 | struct symbol *sym; | |
48b9d03c | 55 | const char *src; |
1da177e4 LT |
56 | static char res_value[SYMBOL_MAXLENGTH]; |
57 | char *dst, name[SYMBOL_MAXLENGTH]; | |
58 | ||
59 | res_value[0] = 0; | |
60 | dst = name; | |
61 | while ((src = strchr(in, '$'))) { | |
62 | strncat(res_value, in, src - in); | |
63 | src++; | |
64 | dst = name; | |
65 | while (isalnum(*src) || *src == '_') | |
66 | *dst++ = *src++; | |
67 | *dst = 0; | |
68 | sym = sym_lookup(name, 0); | |
69 | sym_calc_value(sym); | |
70 | strcat(res_value, sym_get_string_value(sym)); | |
71 | in = src; | |
72 | } | |
73 | strcat(res_value, in); | |
74 | ||
75 | return res_value; | |
76 | } | |
77 | ||
78 | char *conf_get_default_confname(void) | |
79 | { | |
80 | struct stat buf; | |
81 | static char fullname[PATH_MAX+1]; | |
82 | char *env, *name; | |
83 | ||
84 | name = conf_expand_value(conf_defname); | |
85 | env = getenv(SRCTREE); | |
86 | if (env) { | |
87 | sprintf(fullname, "%s/%s", env, name); | |
88 | if (!stat(fullname, &buf)) | |
89 | return fullname; | |
90 | } | |
91 | return name; | |
92 | } | |
93 | ||
9c900a9c SR |
94 | static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) |
95 | { | |
96 | char *p2; | |
97 | ||
98 | switch (sym->type) { | |
99 | case S_TRISTATE: | |
100 | if (p[0] == 'm') { | |
101 | sym->def[def].tri = mod; | |
102 | sym->flags |= def_flags; | |
103 | break; | |
104 | } | |
105 | case S_BOOLEAN: | |
106 | if (p[0] == 'y') { | |
107 | sym->def[def].tri = yes; | |
108 | sym->flags |= def_flags; | |
109 | break; | |
110 | } | |
111 | if (p[0] == 'n') { | |
112 | sym->def[def].tri = no; | |
113 | sym->flags |= def_flags; | |
114 | break; | |
115 | } | |
116 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
117 | break; | |
118 | case S_OTHER: | |
119 | if (*p != '"') { | |
120 | for (p2 = p; *p2 && !isspace(*p2); p2++) | |
121 | ; | |
122 | sym->type = S_STRING; | |
123 | goto done; | |
124 | } | |
125 | case S_STRING: | |
126 | if (*p++ != '"') | |
127 | break; | |
128 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { | |
129 | if (*p2 == '"') { | |
130 | *p2 = 0; | |
131 | break; | |
132 | } | |
133 | memmove(p2, p2 + 1, strlen(p2)); | |
134 | } | |
135 | if (!p2) { | |
136 | conf_warning("invalid string found"); | |
137 | return 1; | |
138 | } | |
139 | case S_INT: | |
140 | case S_HEX: | |
141 | done: | |
142 | if (sym_string_valid(sym, p)) { | |
143 | sym->def[def].val = strdup(p); | |
144 | sym->flags |= def_flags; | |
145 | } else { | |
146 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
147 | return 1; | |
148 | } | |
149 | break; | |
150 | default: | |
151 | ; | |
152 | } | |
153 | return 0; | |
154 | } | |
155 | ||
669bfad9 | 156 | int conf_read_simple(const char *name, int def) |
1da177e4 LT |
157 | { |
158 | FILE *in = NULL; | |
159 | char line[1024]; | |
160 | char *p, *p2; | |
1da177e4 | 161 | struct symbol *sym; |
669bfad9 | 162 | int i, def_flags; |
1da177e4 LT |
163 | |
164 | if (name) { | |
165 | in = zconf_fopen(name); | |
166 | } else { | |
face4374 RZ |
167 | struct property *prop; |
168 | ||
14cdd3c4 | 169 | name = conf_get_configname(); |
ddc97cac RZ |
170 | in = zconf_fopen(name); |
171 | if (in) | |
172 | goto load; | |
bfc10001 | 173 | sym_add_change_count(1); |
ac1ffde1 UM |
174 | if (!sym_defconfig_list) { |
175 | if (modules_sym) | |
176 | sym_calc_value(modules_sym); | |
face4374 | 177 | return 1; |
ac1ffde1 | 178 | } |
face4374 RZ |
179 | |
180 | for_all_defaults(sym_defconfig_list, prop) { | |
181 | if (expr_calc_value(prop->visible.expr) == no || | |
182 | prop->expr->type != E_SYMBOL) | |
183 | continue; | |
184 | name = conf_expand_value(prop->expr->left.sym->name); | |
1da177e4 LT |
185 | in = zconf_fopen(name); |
186 | if (in) { | |
3b9fa093 | 187 | printf(_("#\n" |
ddc97cac RZ |
188 | "# using defaults found in %s\n" |
189 | "#\n"), name); | |
190 | goto load; | |
1da177e4 LT |
191 | } |
192 | } | |
193 | } | |
1da177e4 LT |
194 | if (!in) |
195 | return 1; | |
196 | ||
ddc97cac | 197 | load: |
c1a0f5e3 RZ |
198 | conf_filename = name; |
199 | conf_lineno = 0; | |
200 | conf_warnings = 0; | |
201 | conf_unsaved = 0; | |
202 | ||
669bfad9 | 203 | def_flags = SYMBOL_DEF << def; |
1da177e4 | 204 | for_all_symbols(i, sym) { |
669bfad9 RZ |
205 | sym->flags |= SYMBOL_CHANGED; |
206 | sym->flags &= ~(def_flags|SYMBOL_VALID); | |
c1a0f5e3 | 207 | if (sym_is_choice(sym)) |
669bfad9 | 208 | sym->flags |= def_flags; |
1da177e4 LT |
209 | switch (sym->type) { |
210 | case S_INT: | |
211 | case S_HEX: | |
212 | case S_STRING: | |
669bfad9 RZ |
213 | if (sym->def[def].val) |
214 | free(sym->def[def].val); | |
1da177e4 | 215 | default: |
669bfad9 RZ |
216 | sym->def[def].val = NULL; |
217 | sym->def[def].tri = no; | |
1da177e4 LT |
218 | } |
219 | } | |
220 | ||
221 | while (fgets(line, sizeof(line), in)) { | |
c1a0f5e3 | 222 | conf_lineno++; |
1da177e4 LT |
223 | sym = NULL; |
224 | switch (line[0]) { | |
225 | case '#': | |
226 | if (memcmp(line + 2, "CONFIG_", 7)) | |
227 | continue; | |
228 | p = strchr(line + 9, ' '); | |
229 | if (!p) | |
230 | continue; | |
231 | *p++ = 0; | |
232 | if (strncmp(p, "is not set", 10)) | |
233 | continue; | |
669bfad9 RZ |
234 | if (def == S_DEF_USER) { |
235 | sym = sym_find(line + 9); | |
661b0680 | 236 | if (!sym) { |
237 | sym_add_change_count(1); | |
669bfad9 | 238 | break; |
661b0680 | 239 | } |
669bfad9 RZ |
240 | } else { |
241 | sym = sym_lookup(line + 9, 0); | |
242 | if (sym->type == S_UNKNOWN) | |
243 | sym->type = S_BOOLEAN; | |
244 | } | |
245 | if (sym->flags & def_flags) { | |
d84876f9 | 246 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 LT |
247 | } |
248 | switch (sym->type) { | |
249 | case S_BOOLEAN: | |
250 | case S_TRISTATE: | |
669bfad9 RZ |
251 | sym->def[def].tri = no; |
252 | sym->flags |= def_flags; | |
1da177e4 LT |
253 | break; |
254 | default: | |
255 | ; | |
256 | } | |
257 | break; | |
258 | case 'C': | |
c1a0f5e3 RZ |
259 | if (memcmp(line, "CONFIG_", 7)) { |
260 | conf_warning("unexpected data"); | |
1da177e4 | 261 | continue; |
c1a0f5e3 | 262 | } |
1da177e4 LT |
263 | p = strchr(line + 7, '='); |
264 | if (!p) | |
265 | continue; | |
266 | *p++ = 0; | |
267 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
268 | if (p2) { |
269 | *p2-- = 0; | |
270 | if (*p2 == '\r') | |
271 | *p2 = 0; | |
272 | } | |
669bfad9 RZ |
273 | if (def == S_DEF_USER) { |
274 | sym = sym_find(line + 7); | |
661b0680 | 275 | if (!sym) { |
276 | sym_add_change_count(1); | |
669bfad9 | 277 | break; |
661b0680 | 278 | } |
669bfad9 RZ |
279 | } else { |
280 | sym = sym_lookup(line + 7, 0); | |
281 | if (sym->type == S_UNKNOWN) | |
282 | sym->type = S_OTHER; | |
283 | } | |
284 | if (sym->flags & def_flags) { | |
d84876f9 | 285 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 286 | } |
9c900a9c SR |
287 | if (conf_set_sym_val(sym, def, def_flags, p)) |
288 | continue; | |
1da177e4 | 289 | break; |
d3660a8c | 290 | case '\r': |
1da177e4 LT |
291 | case '\n': |
292 | break; | |
293 | default: | |
c1a0f5e3 | 294 | conf_warning("unexpected data"); |
1da177e4 LT |
295 | continue; |
296 | } | |
297 | if (sym && sym_is_choice_value(sym)) { | |
298 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 299 | switch (sym->def[def].tri) { |
1da177e4 LT |
300 | case no: |
301 | break; | |
302 | case mod: | |
669bfad9 | 303 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 304 | conf_warning("%s creates inconsistent choice state", sym->name); |
669bfad9 | 305 | cs->flags &= ~def_flags; |
c1a0f5e3 | 306 | } |
1da177e4 LT |
307 | break; |
308 | case yes: | |
d84876f9 JE |
309 | if (cs->def[def].tri != no) |
310 | conf_warning("override: %s changes choice state", sym->name); | |
311 | cs->def[def].val = sym; | |
1da177e4 LT |
312 | break; |
313 | } | |
d6ee3576 | 314 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
315 | } |
316 | } | |
317 | fclose(in); | |
318 | ||
319 | if (modules_sym) | |
320 | sym_calc_value(modules_sym); | |
90389160 RZ |
321 | return 0; |
322 | } | |
323 | ||
324 | int conf_read(const char *name) | |
325 | { | |
7a962923 | 326 | struct symbol *sym, *choice_sym; |
90389160 RZ |
327 | struct property *prop; |
328 | struct expr *e; | |
669bfad9 | 329 | int i, flags; |
90389160 | 330 | |
bfc10001 | 331 | sym_set_change_count(0); |
ddc97cac | 332 | |
669bfad9 | 333 | if (conf_read_simple(name, S_DEF_USER)) |
90389160 RZ |
334 | return 1; |
335 | ||
1da177e4 LT |
336 | for_all_symbols(i, sym) { |
337 | sym_calc_value(sym); | |
c1a0f5e3 RZ |
338 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
339 | goto sym_ok; | |
340 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { | |
341 | /* check that calculated value agrees with saved value */ | |
342 | switch (sym->type) { | |
343 | case S_BOOLEAN: | |
344 | case S_TRISTATE: | |
0c1822e6 | 345 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
346 | break; |
347 | if (!sym_is_choice(sym)) | |
348 | goto sym_ok; | |
349 | default: | |
0c1822e6 | 350 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
c1a0f5e3 RZ |
351 | goto sym_ok; |
352 | break; | |
353 | } | |
354 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
355 | /* no previous value and not saved */ | |
356 | goto sym_ok; | |
357 | conf_unsaved++; | |
358 | /* maybe print value in verbose mode... */ | |
359 | sym_ok: | |
d8982ba1 RZ |
360 | if (!sym_is_choice(sym)) |
361 | continue; | |
362 | /* The choice symbol only has a set value (and thus is not new) | |
363 | * if all its visible childs have values. | |
364 | */ | |
365 | prop = sym_get_choice_prop(sym); | |
366 | flags = sym->flags; | |
7a962923 RZ |
367 | expr_list_for_each_sym(prop->expr, e, choice_sym) |
368 | if (choice_sym->visible != no) | |
369 | flags &= choice_sym->flags; | |
d8982ba1 RZ |
370 | sym->flags &= flags | ~SYMBOL_DEF_USER; |
371 | } | |
372 | ||
373 | for_all_symbols(i, sym) { | |
1da177e4 | 374 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
375 | /* Reset values of generates values, so they'll appear |
376 | * as new, if they should become visible, but that | |
377 | * doesn't quite work if the Kconfig and the saved | |
378 | * configuration disagree. | |
379 | */ | |
380 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 381 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
382 | switch (sym->type) { |
383 | case S_STRING: | |
384 | case S_INT: | |
385 | case S_HEX: | |
d8982ba1 RZ |
386 | /* Reset a string value if it's out of range */ |
387 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
388 | break; | |
389 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
390 | conf_unsaved++; | |
391 | break; | |
1da177e4 LT |
392 | default: |
393 | break; | |
394 | } | |
395 | } | |
1da177e4 LT |
396 | } |
397 | ||
bfc10001 | 398 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
399 | |
400 | return 0; | |
401 | } | |
402 | ||
49192f26 SR |
403 | /* Write a S_STRING */ |
404 | static void conf_write_string(bool headerfile, const char *name, | |
405 | const char *str, FILE *out) | |
406 | { | |
407 | int l; | |
408 | if (headerfile) | |
409 | fprintf(out, "#define CONFIG_%s \"", name); | |
410 | else | |
411 | fprintf(out, "CONFIG_%s=\"", name); | |
412 | ||
413 | while (1) { | |
414 | l = strcspn(str, "\"\\"); | |
415 | if (l) { | |
bf5e327a | 416 | xfwrite(str, l, 1, out); |
49192f26 SR |
417 | str += l; |
418 | } | |
419 | if (!*str) | |
420 | break; | |
421 | fprintf(out, "\\%c", *str++); | |
422 | } | |
423 | fputs("\"\n", out); | |
424 | } | |
425 | ||
426 | static void conf_write_symbol(struct symbol *sym, enum symbol_type type, | |
427 | FILE *out, bool write_no) | |
428 | { | |
429 | const char *str; | |
430 | ||
431 | switch (type) { | |
432 | case S_BOOLEAN: | |
433 | case S_TRISTATE: | |
434 | switch (sym_get_tristate_value(sym)) { | |
435 | case no: | |
436 | if (write_no) | |
437 | fprintf(out, "# CONFIG_%s is not set\n", sym->name); | |
438 | break; | |
439 | case mod: | |
440 | fprintf(out, "CONFIG_%s=m\n", sym->name); | |
441 | break; | |
442 | case yes: | |
443 | fprintf(out, "CONFIG_%s=y\n", sym->name); | |
444 | break; | |
445 | } | |
446 | break; | |
447 | case S_STRING: | |
448 | conf_write_string(false, sym->name, sym_get_string_value(sym), out); | |
449 | break; | |
450 | case S_HEX: | |
451 | case S_INT: | |
452 | str = sym_get_string_value(sym); | |
453 | fprintf(out, "CONFIG_%s=%s\n", sym->name, str); | |
454 | break; | |
455 | case S_OTHER: | |
456 | case S_UNKNOWN: | |
457 | break; | |
458 | } | |
459 | } | |
460 | ||
7cf3d73b SR |
461 | /* |
462 | * Write out a minimal config. | |
463 | * All values that has default values are skipped as this is redundant. | |
464 | */ | |
465 | int conf_write_defconfig(const char *filename) | |
466 | { | |
467 | struct symbol *sym; | |
468 | struct menu *menu; | |
469 | FILE *out; | |
470 | ||
471 | out = fopen(filename, "w"); | |
472 | if (!out) | |
473 | return 1; | |
474 | ||
475 | sym_clear_all_valid(); | |
476 | ||
477 | /* Traverse all menus to find all relevant symbols */ | |
478 | menu = rootmenu.list; | |
479 | ||
480 | while (menu != NULL) | |
481 | { | |
482 | sym = menu->sym; | |
483 | if (sym == NULL) { | |
484 | if (!menu_is_visible(menu)) | |
485 | goto next_menu; | |
486 | } else if (!sym_is_choice(sym)) { | |
487 | sym_calc_value(sym); | |
488 | if (!(sym->flags & SYMBOL_WRITE)) | |
489 | goto next_menu; | |
490 | sym->flags &= ~SYMBOL_WRITE; | |
491 | /* If we cannot change the symbol - skip */ | |
492 | if (!sym_is_changable(sym)) | |
493 | goto next_menu; | |
494 | /* If symbol equals to default value - skip */ | |
495 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
496 | goto next_menu; | |
497 | ||
498 | /* | |
499 | * If symbol is a choice value and equals to the | |
500 | * default for a choice - skip. | |
84062dd3 SR |
501 | * But only if value is bool and equal to "y" and |
502 | * choice is not "optional". | |
503 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
504 | */ |
505 | if (sym_is_choice_value(sym)) { | |
506 | struct symbol *cs; | |
507 | struct symbol *ds; | |
508 | ||
509 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
510 | ds = sym_choice_default(cs); | |
84062dd3 | 511 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
512 | if ((sym->type == S_BOOLEAN) && |
513 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
514 | goto next_menu; |
515 | } | |
516 | } | |
517 | conf_write_symbol(sym, sym->type, out, true); | |
518 | } | |
519 | next_menu: | |
520 | if (menu->list != NULL) { | |
521 | menu = menu->list; | |
522 | } | |
523 | else if (menu->next != NULL) { | |
524 | menu = menu->next; | |
525 | } else { | |
526 | while ((menu = menu->parent)) { | |
527 | if (menu->next != NULL) { | |
528 | menu = menu->next; | |
529 | break; | |
530 | } | |
531 | } | |
532 | } | |
533 | } | |
534 | fclose(out); | |
535 | return 0; | |
536 | } | |
537 | ||
1da177e4 LT |
538 | int conf_write(const char *name) |
539 | { | |
c955ccaf | 540 | FILE *out; |
1da177e4 LT |
541 | struct symbol *sym; |
542 | struct menu *menu; | |
543 | const char *basename; | |
1da177e4 | 544 | const char *str; |
49192f26 SR |
545 | char dirname[128], tmpname[128], newname[128]; |
546 | enum symbol_type type; | |
1da177e4 LT |
547 | time_t now; |
548 | int use_timestamp = 1; | |
549 | char *env; | |
550 | ||
551 | dirname[0] = 0; | |
552 | if (name && name[0]) { | |
553 | struct stat st; | |
554 | char *slash; | |
555 | ||
556 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
557 | strcpy(dirname, name); | |
558 | strcat(dirname, "/"); | |
14cdd3c4 | 559 | basename = conf_get_configname(); |
1da177e4 LT |
560 | } else if ((slash = strrchr(name, '/'))) { |
561 | int size = slash - name + 1; | |
562 | memcpy(dirname, name, size); | |
563 | dirname[size] = 0; | |
564 | if (slash[1]) | |
565 | basename = slash + 1; | |
566 | else | |
14cdd3c4 | 567 | basename = conf_get_configname(); |
1da177e4 LT |
568 | } else |
569 | basename = name; | |
570 | } else | |
14cdd3c4 | 571 | basename = conf_get_configname(); |
1da177e4 | 572 | |
14cdd3c4 RZ |
573 | sprintf(newname, "%s%s", dirname, basename); |
574 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
575 | if (!env || !*env) { | |
576 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
577 | out = fopen(tmpname, "w"); | |
578 | } else { | |
579 | *tmpname = 0; | |
580 | out = fopen(newname, "w"); | |
581 | } | |
1da177e4 LT |
582 | if (!out) |
583 | return 1; | |
14cdd3c4 | 584 | |
2244cbd8 | 585 | sym = sym_lookup("KERNELVERSION", 0); |
1da177e4 LT |
586 | sym_calc_value(sym); |
587 | time(&now); | |
588 | env = getenv("KCONFIG_NOTIMESTAMP"); | |
589 | if (env && *env) | |
590 | use_timestamp = 0; | |
591 | ||
3b9fa093 ACM |
592 | fprintf(out, _("#\n" |
593 | "# Automatically generated make config: don't edit\n" | |
594 | "# Linux kernel version: %s\n" | |
595 | "%s%s" | |
596 | "#\n"), | |
1da177e4 LT |
597 | sym_get_string_value(sym), |
598 | use_timestamp ? "# " : "", | |
599 | use_timestamp ? ctime(&now) : ""); | |
1da177e4 | 600 | |
b3214293 | 601 | if (!conf_get_changed()) |
1da177e4 LT |
602 | sym_clear_all_valid(); |
603 | ||
604 | menu = rootmenu.list; | |
605 | while (menu) { | |
606 | sym = menu->sym; | |
607 | if (!sym) { | |
608 | if (!menu_is_visible(menu)) | |
609 | goto next; | |
610 | str = menu_get_prompt(menu); | |
611 | fprintf(out, "\n" | |
612 | "#\n" | |
613 | "# %s\n" | |
614 | "#\n", str); | |
1da177e4 LT |
615 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
616 | sym_calc_value(sym); | |
617 | if (!(sym->flags & SYMBOL_WRITE)) | |
618 | goto next; | |
619 | sym->flags &= ~SYMBOL_WRITE; | |
620 | type = sym->type; | |
621 | if (type == S_TRISTATE) { | |
622 | sym_calc_value(modules_sym); | |
623 | if (modules_sym->curr.tri == no) | |
624 | type = S_BOOLEAN; | |
625 | } | |
49192f26 SR |
626 | /* Write config symbol to file */ |
627 | conf_write_symbol(sym, type, out, true); | |
1da177e4 LT |
628 | } |
629 | ||
49192f26 | 630 | next: |
1da177e4 LT |
631 | if (menu->list) { |
632 | menu = menu->list; | |
633 | continue; | |
634 | } | |
635 | if (menu->next) | |
636 | menu = menu->next; | |
637 | else while ((menu = menu->parent)) { | |
638 | if (menu->next) { | |
639 | menu = menu->next; | |
640 | break; | |
641 | } | |
642 | } | |
643 | } | |
644 | fclose(out); | |
14cdd3c4 RZ |
645 | |
646 | if (*tmpname) { | |
9a3d0fe8 | 647 | strcat(dirname, basename); |
14cdd3c4 RZ |
648 | strcat(dirname, ".old"); |
649 | rename(newname, dirname); | |
650 | if (rename(tmpname, newname)) | |
651 | return 1; | |
1da177e4 | 652 | } |
1da177e4 | 653 | |
ddc97cac RZ |
654 | printf(_("#\n" |
655 | "# configuration written to %s\n" | |
14cdd3c4 | 656 | "#\n"), newname); |
ddc97cac | 657 | |
bfc10001 | 658 | sym_set_change_count(0); |
1da177e4 LT |
659 | |
660 | return 0; | |
661 | } | |
c955ccaf | 662 | |
4356f489 | 663 | static int conf_split_config(void) |
2e3646e5 | 664 | { |
12122f62 MH |
665 | const char *name; |
666 | char path[128]; | |
2e3646e5 RZ |
667 | char *s, *d, c; |
668 | struct symbol *sym; | |
669 | struct stat sb; | |
670 | int res, i, fd; | |
671 | ||
12122f62 | 672 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
673 | conf_read_simple(name, S_DEF_AUTO); |
674 | ||
675 | if (chdir("include/config")) | |
676 | return 1; | |
677 | ||
678 | res = 0; | |
679 | for_all_symbols(i, sym) { | |
680 | sym_calc_value(sym); | |
681 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
682 | continue; | |
683 | if (sym->flags & SYMBOL_WRITE) { | |
684 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
685 | /* | |
686 | * symbol has old and new value, | |
687 | * so compare them... | |
688 | */ | |
689 | switch (sym->type) { | |
690 | case S_BOOLEAN: | |
691 | case S_TRISTATE: | |
692 | if (sym_get_tristate_value(sym) == | |
693 | sym->def[S_DEF_AUTO].tri) | |
694 | continue; | |
695 | break; | |
696 | case S_STRING: | |
697 | case S_HEX: | |
698 | case S_INT: | |
699 | if (!strcmp(sym_get_string_value(sym), | |
700 | sym->def[S_DEF_AUTO].val)) | |
701 | continue; | |
702 | break; | |
703 | default: | |
704 | break; | |
705 | } | |
706 | } else { | |
707 | /* | |
708 | * If there is no old value, only 'no' (unset) | |
709 | * is allowed as new value. | |
710 | */ | |
711 | switch (sym->type) { | |
712 | case S_BOOLEAN: | |
713 | case S_TRISTATE: | |
714 | if (sym_get_tristate_value(sym) == no) | |
715 | continue; | |
716 | break; | |
717 | default: | |
718 | break; | |
719 | } | |
720 | } | |
721 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
722 | /* There is neither an old nor a new value. */ | |
723 | continue; | |
724 | /* else | |
725 | * There is an old value, but no new value ('no' (unset) | |
726 | * isn't saved in auto.conf, so the old value is always | |
727 | * different from 'no'). | |
728 | */ | |
729 | ||
730 | /* Replace all '_' and append ".h" */ | |
731 | s = sym->name; | |
732 | d = path; | |
733 | while ((c = *s++)) { | |
734 | c = tolower(c); | |
735 | *d++ = (c == '_') ? '/' : c; | |
736 | } | |
737 | strcpy(d, ".h"); | |
738 | ||
739 | /* Assume directory path already exists. */ | |
740 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
741 | if (fd == -1) { | |
742 | if (errno != ENOENT) { | |
743 | res = 1; | |
744 | break; | |
745 | } | |
746 | /* | |
747 | * Create directory components, | |
748 | * unless they exist already. | |
749 | */ | |
750 | d = path; | |
751 | while ((d = strchr(d, '/'))) { | |
752 | *d = 0; | |
753 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
754 | res = 1; | |
755 | goto out; | |
756 | } | |
757 | *d++ = '/'; | |
758 | } | |
759 | /* Try it again. */ | |
760 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
761 | if (fd == -1) { | |
762 | res = 1; | |
763 | break; | |
764 | } | |
765 | } | |
766 | close(fd); | |
767 | } | |
768 | out: | |
769 | if (chdir("../..")) | |
770 | return 1; | |
771 | ||
772 | return res; | |
773 | } | |
774 | ||
c955ccaf RZ |
775 | int conf_write_autoconf(void) |
776 | { | |
777 | struct symbol *sym; | |
778 | const char *str; | |
12122f62 | 779 | const char *name; |
bc081dd6 | 780 | FILE *out, *tristate, *out_h; |
c955ccaf | 781 | time_t now; |
49192f26 | 782 | int i; |
c955ccaf | 783 | |
2e3646e5 RZ |
784 | sym_clear_all_valid(); |
785 | ||
c955ccaf RZ |
786 | file_write_dep("include/config/auto.conf.cmd"); |
787 | ||
2e3646e5 RZ |
788 | if (conf_split_config()) |
789 | return 1; | |
790 | ||
c955ccaf RZ |
791 | out = fopen(".tmpconfig", "w"); |
792 | if (!out) | |
793 | return 1; | |
794 | ||
bc081dd6 MM |
795 | tristate = fopen(".tmpconfig_tristate", "w"); |
796 | if (!tristate) { | |
797 | fclose(out); | |
798 | return 1; | |
799 | } | |
800 | ||
c955ccaf RZ |
801 | out_h = fopen(".tmpconfig.h", "w"); |
802 | if (!out_h) { | |
803 | fclose(out); | |
bc081dd6 | 804 | fclose(tristate); |
c955ccaf RZ |
805 | return 1; |
806 | } | |
807 | ||
808 | sym = sym_lookup("KERNELVERSION", 0); | |
809 | sym_calc_value(sym); | |
810 | time(&now); | |
811 | fprintf(out, "#\n" | |
812 | "# Automatically generated make config: don't edit\n" | |
813 | "# Linux kernel version: %s\n" | |
814 | "# %s" | |
815 | "#\n", | |
816 | sym_get_string_value(sym), ctime(&now)); | |
bc081dd6 MM |
817 | fprintf(tristate, "#\n" |
818 | "# Automatically generated - do not edit\n" | |
819 | "\n"); | |
c955ccaf RZ |
820 | fprintf(out_h, "/*\n" |
821 | " * Automatically generated C config: don't edit\n" | |
822 | " * Linux kernel version: %s\n" | |
823 | " * %s" | |
824 | " */\n" | |
825 | "#define AUTOCONF_INCLUDED\n", | |
826 | sym_get_string_value(sym), ctime(&now)); | |
827 | ||
c955ccaf RZ |
828 | for_all_symbols(i, sym) { |
829 | sym_calc_value(sym); | |
830 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) | |
831 | continue; | |
49192f26 SR |
832 | |
833 | /* write symbol to config file */ | |
834 | conf_write_symbol(sym, sym->type, out, false); | |
835 | ||
836 | /* update autoconf and tristate files */ | |
c955ccaf RZ |
837 | switch (sym->type) { |
838 | case S_BOOLEAN: | |
839 | case S_TRISTATE: | |
840 | switch (sym_get_tristate_value(sym)) { | |
841 | case no: | |
842 | break; | |
843 | case mod: | |
bc081dd6 | 844 | fprintf(tristate, "CONFIG_%s=M\n", sym->name); |
c955ccaf RZ |
845 | fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name); |
846 | break; | |
847 | case yes: | |
bc081dd6 MM |
848 | if (sym->type == S_TRISTATE) |
849 | fprintf(tristate, "CONFIG_%s=Y\n", | |
850 | sym->name); | |
c955ccaf RZ |
851 | fprintf(out_h, "#define CONFIG_%s 1\n", sym->name); |
852 | break; | |
853 | } | |
854 | break; | |
855 | case S_STRING: | |
49192f26 | 856 | conf_write_string(true, sym->name, sym_get_string_value(sym), out_h); |
c955ccaf RZ |
857 | break; |
858 | case S_HEX: | |
859 | str = sym_get_string_value(sym); | |
860 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { | |
c955ccaf RZ |
861 | fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str); |
862 | break; | |
863 | } | |
864 | case S_INT: | |
865 | str = sym_get_string_value(sym); | |
c955ccaf RZ |
866 | fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str); |
867 | break; | |
868 | default: | |
869 | break; | |
870 | } | |
871 | } | |
872 | fclose(out); | |
bc081dd6 | 873 | fclose(tristate); |
c955ccaf RZ |
874 | fclose(out_h); |
875 | ||
876 | name = getenv("KCONFIG_AUTOHEADER"); | |
877 | if (!name) | |
264a2683 | 878 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
879 | if (rename(".tmpconfig.h", name)) |
880 | return 1; | |
bc081dd6 MM |
881 | name = getenv("KCONFIG_TRISTATE"); |
882 | if (!name) | |
883 | name = "include/config/tristate.conf"; | |
884 | if (rename(".tmpconfig_tristate", name)) | |
885 | return 1; | |
12122f62 | 886 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
887 | /* |
888 | * This must be the last step, kbuild has a dependency on auto.conf | |
889 | * and this marks the successful completion of the previous steps. | |
890 | */ | |
891 | if (rename(".tmpconfig", name)) | |
892 | return 1; | |
893 | ||
894 | return 0; | |
895 | } | |
b3214293 | 896 | |
bfc10001 | 897 | static int sym_change_count; |
3b354c55 | 898 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
899 | |
900 | void sym_set_change_count(int count) | |
901 | { | |
3b354c55 | 902 | int _sym_change_count = sym_change_count; |
bfc10001 | 903 | sym_change_count = count; |
3b354c55 KW |
904 | if (conf_changed_callback && |
905 | (bool)_sym_change_count != (bool)count) | |
906 | conf_changed_callback(); | |
bfc10001 KW |
907 | } |
908 | ||
909 | void sym_add_change_count(int count) | |
910 | { | |
3b354c55 | 911 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
912 | } |
913 | ||
b3214293 KW |
914 | bool conf_get_changed(void) |
915 | { | |
916 | return sym_change_count; | |
917 | } | |
3b354c55 KW |
918 | |
919 | void conf_set_changed_callback(void (*fn)(void)) | |
920 | { | |
921 | conf_changed_callback = fn; | |
922 | } | |
dc7862e5 | 923 | |
a64b44ea SR |
924 | static void randomize_choice_values(struct symbol *csym) |
925 | { | |
926 | struct property *prop; | |
927 | struct symbol *sym; | |
928 | struct expr *e; | |
929 | int cnt, def; | |
dc7862e5 | 930 | |
a64b44ea SR |
931 | /* |
932 | * If choice is mod then we may have more items slected | |
933 | * and if no then no-one. | |
934 | * In both cases stop. | |
935 | */ | |
936 | if (csym->curr.tri != yes) | |
937 | return; | |
938 | ||
939 | prop = sym_get_choice_prop(csym); | |
940 | ||
941 | /* count entries in choice block */ | |
942 | cnt = 0; | |
943 | expr_list_for_each_sym(prop->expr, e, sym) | |
944 | cnt++; | |
945 | ||
946 | /* | |
947 | * find a random value and set it to yes, | |
948 | * set the rest to no so we have only one set | |
949 | */ | |
950 | def = (rand() % cnt); | |
951 | ||
952 | cnt = 0; | |
953 | expr_list_for_each_sym(prop->expr, e, sym) { | |
954 | if (def == cnt++) { | |
955 | sym->def[S_DEF_USER].tri = yes; | |
956 | csym->def[S_DEF_USER].val = sym; | |
957 | } | |
958 | else { | |
959 | sym->def[S_DEF_USER].tri = no; | |
960 | } | |
961 | } | |
962 | csym->flags |= SYMBOL_DEF_USER; | |
963 | /* clear VALID to get value calculated */ | |
964 | csym->flags &= ~(SYMBOL_VALID); | |
965 | } | |
966 | ||
967 | static void set_all_choice_values(struct symbol *csym) | |
dc7862e5 | 968 | { |
dc7862e5 | 969 | struct property *prop; |
a64b44ea | 970 | struct symbol *sym; |
dc7862e5 | 971 | struct expr *e; |
a64b44ea SR |
972 | |
973 | prop = sym_get_choice_prop(csym); | |
974 | ||
975 | /* | |
976 | * Set all non-assinged choice values to no | |
977 | */ | |
978 | expr_list_for_each_sym(prop->expr, e, sym) { | |
979 | if (!sym_has_value(sym)) | |
980 | sym->def[S_DEF_USER].tri = no; | |
981 | } | |
982 | csym->flags |= SYMBOL_DEF_USER; | |
983 | /* clear VALID to get value calculated */ | |
984 | csym->flags &= ~(SYMBOL_VALID); | |
985 | } | |
986 | ||
987 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
988 | { | |
989 | struct symbol *sym, *csym; | |
990 | int i, cnt; | |
dc7862e5 RZ |
991 | |
992 | for_all_symbols(i, sym) { | |
993 | if (sym_has_value(sym)) | |
994 | continue; | |
995 | switch (sym_get_type(sym)) { | |
996 | case S_BOOLEAN: | |
997 | case S_TRISTATE: | |
998 | switch (mode) { | |
999 | case def_yes: | |
1000 | sym->def[S_DEF_USER].tri = yes; | |
1001 | break; | |
1002 | case def_mod: | |
1003 | sym->def[S_DEF_USER].tri = mod; | |
1004 | break; | |
1005 | case def_no: | |
1006 | sym->def[S_DEF_USER].tri = no; | |
1007 | break; | |
1008 | case def_random: | |
1244b41d PK |
1009 | cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2; |
1010 | sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); | |
dc7862e5 RZ |
1011 | break; |
1012 | default: | |
1013 | continue; | |
1014 | } | |
184832c9 | 1015 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1016 | sym->flags |= SYMBOL_DEF_USER; |
1017 | break; | |
1018 | default: | |
1019 | break; | |
1020 | } | |
1021 | ||
1022 | } | |
1023 | ||
ce97e13e | 1024 | sym_clear_all_valid(); |
dc7862e5 | 1025 | |
184832c9 SR |
1026 | /* |
1027 | * We have different type of choice blocks. | |
1028 | * If curr.tri equal to mod then we can select several | |
1029 | * choice symbols in one block. | |
1030 | * In this case we do nothing. | |
1031 | * If curr.tri equal yes then only one symbol can be | |
1032 | * selected in a choice block and we set it to yes, | |
1033 | * and the rest to no. | |
1034 | */ | |
dc7862e5 RZ |
1035 | for_all_symbols(i, csym) { |
1036 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1037 | continue; | |
1038 | ||
1039 | sym_calc_value(csym); | |
a64b44ea SR |
1040 | if (mode == def_random) |
1041 | randomize_choice_values(csym); | |
1042 | else | |
1043 | set_all_choice_values(csym); | |
dc7862e5 RZ |
1044 | } |
1045 | } |