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