Commit | Line | Data |
---|---|---|
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 | 223 | sym = NULL; |
8baefd30 | 224 | if (line[0] == '#') { |
ffb5957b | 225 | if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) |
1da177e4 | 226 | continue; |
ffb5957b | 227 | p = strchr(line + 2 + strlen(CONFIG_), ' '); |
1da177e4 LT |
228 | if (!p) |
229 | continue; | |
230 | *p++ = 0; | |
231 | if (strncmp(p, "is not set", 10)) | |
232 | continue; | |
669bfad9 | 233 | if (def == S_DEF_USER) { |
ffb5957b | 234 | sym = sym_find(line + 2 + strlen(CONFIG_)); |
661b0680 | 235 | if (!sym) { |
236 | sym_add_change_count(1); | |
669bfad9 | 237 | break; |
661b0680 | 238 | } |
669bfad9 | 239 | } else { |
ffb5957b | 240 | sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); |
669bfad9 RZ |
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 | } | |
ffb5957b AL |
256 | } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { |
257 | p = strchr(line + strlen(CONFIG_), '='); | |
1da177e4 LT |
258 | if (!p) |
259 | continue; | |
260 | *p++ = 0; | |
261 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
262 | if (p2) { |
263 | *p2-- = 0; | |
264 | if (*p2 == '\r') | |
265 | *p2 = 0; | |
266 | } | |
669bfad9 | 267 | if (def == S_DEF_USER) { |
ffb5957b | 268 | sym = sym_find(line + strlen(CONFIG_)); |
661b0680 | 269 | if (!sym) { |
270 | sym_add_change_count(1); | |
669bfad9 | 271 | break; |
661b0680 | 272 | } |
669bfad9 | 273 | } else { |
ffb5957b | 274 | sym = sym_lookup(line + strlen(CONFIG_), 0); |
669bfad9 RZ |
275 | if (sym->type == S_UNKNOWN) |
276 | sym->type = S_OTHER; | |
277 | } | |
278 | if (sym->flags & def_flags) { | |
d84876f9 | 279 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 280 | } |
9c900a9c SR |
281 | if (conf_set_sym_val(sym, def, def_flags, p)) |
282 | continue; | |
8baefd30 AL |
283 | } else { |
284 | if (line[0] != '\r' && line[0] != '\n') | |
285 | conf_warning("unexpected data"); | |
1da177e4 LT |
286 | continue; |
287 | } | |
288 | if (sym && sym_is_choice_value(sym)) { | |
289 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 290 | switch (sym->def[def].tri) { |
1da177e4 LT |
291 | case no: |
292 | break; | |
293 | case mod: | |
669bfad9 | 294 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 295 | conf_warning("%s creates inconsistent choice state", sym->name); |
669bfad9 | 296 | cs->flags &= ~def_flags; |
c1a0f5e3 | 297 | } |
1da177e4 LT |
298 | break; |
299 | case yes: | |
d84876f9 JE |
300 | if (cs->def[def].tri != no) |
301 | conf_warning("override: %s changes choice state", sym->name); | |
302 | cs->def[def].val = sym; | |
1da177e4 LT |
303 | break; |
304 | } | |
d6ee3576 | 305 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
306 | } |
307 | } | |
308 | fclose(in); | |
309 | ||
310 | if (modules_sym) | |
311 | sym_calc_value(modules_sym); | |
90389160 RZ |
312 | return 0; |
313 | } | |
314 | ||
315 | int conf_read(const char *name) | |
316 | { | |
7a962923 | 317 | struct symbol *sym, *choice_sym; |
90389160 RZ |
318 | struct property *prop; |
319 | struct expr *e; | |
669bfad9 | 320 | int i, flags; |
90389160 | 321 | |
bfc10001 | 322 | sym_set_change_count(0); |
ddc97cac | 323 | |
669bfad9 | 324 | if (conf_read_simple(name, S_DEF_USER)) |
90389160 RZ |
325 | return 1; |
326 | ||
1da177e4 LT |
327 | for_all_symbols(i, sym) { |
328 | sym_calc_value(sym); | |
c1a0f5e3 RZ |
329 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
330 | goto sym_ok; | |
331 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { | |
332 | /* check that calculated value agrees with saved value */ | |
333 | switch (sym->type) { | |
334 | case S_BOOLEAN: | |
335 | case S_TRISTATE: | |
0c1822e6 | 336 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
337 | break; |
338 | if (!sym_is_choice(sym)) | |
339 | goto sym_ok; | |
340 | default: | |
0c1822e6 | 341 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
c1a0f5e3 RZ |
342 | goto sym_ok; |
343 | break; | |
344 | } | |
345 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
346 | /* no previous value and not saved */ | |
347 | goto sym_ok; | |
348 | conf_unsaved++; | |
349 | /* maybe print value in verbose mode... */ | |
350 | sym_ok: | |
d8982ba1 RZ |
351 | if (!sym_is_choice(sym)) |
352 | continue; | |
353 | /* The choice symbol only has a set value (and thus is not new) | |
354 | * if all its visible childs have values. | |
355 | */ | |
356 | prop = sym_get_choice_prop(sym); | |
357 | flags = sym->flags; | |
7a962923 RZ |
358 | expr_list_for_each_sym(prop->expr, e, choice_sym) |
359 | if (choice_sym->visible != no) | |
360 | flags &= choice_sym->flags; | |
d8982ba1 RZ |
361 | sym->flags &= flags | ~SYMBOL_DEF_USER; |
362 | } | |
363 | ||
364 | for_all_symbols(i, sym) { | |
1da177e4 | 365 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
366 | /* Reset values of generates values, so they'll appear |
367 | * as new, if they should become visible, but that | |
368 | * doesn't quite work if the Kconfig and the saved | |
369 | * configuration disagree. | |
370 | */ | |
371 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 372 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
373 | switch (sym->type) { |
374 | case S_STRING: | |
375 | case S_INT: | |
376 | case S_HEX: | |
d8982ba1 RZ |
377 | /* Reset a string value if it's out of range */ |
378 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
379 | break; | |
380 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
381 | conf_unsaved++; | |
382 | break; | |
1da177e4 LT |
383 | default: |
384 | break; | |
385 | } | |
386 | } | |
1da177e4 LT |
387 | } |
388 | ||
bfc10001 | 389 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
390 | |
391 | return 0; | |
392 | } | |
393 | ||
49192f26 SR |
394 | /* Write a S_STRING */ |
395 | static void conf_write_string(bool headerfile, const char *name, | |
396 | const char *str, FILE *out) | |
397 | { | |
398 | int l; | |
399 | if (headerfile) | |
ffb5957b | 400 | fprintf(out, "#define %s%s \"", CONFIG_, name); |
49192f26 | 401 | else |
ffb5957b | 402 | fprintf(out, "%s%s=\"", CONFIG_, name); |
49192f26 SR |
403 | |
404 | while (1) { | |
405 | l = strcspn(str, "\"\\"); | |
406 | if (l) { | |
bf5e327a | 407 | xfwrite(str, l, 1, out); |
49192f26 SR |
408 | str += l; |
409 | } | |
410 | if (!*str) | |
411 | break; | |
412 | fprintf(out, "\\%c", *str++); | |
413 | } | |
414 | fputs("\"\n", out); | |
415 | } | |
416 | ||
417 | static void conf_write_symbol(struct symbol *sym, enum symbol_type type, | |
418 | FILE *out, bool write_no) | |
419 | { | |
420 | const char *str; | |
421 | ||
422 | switch (type) { | |
423 | case S_BOOLEAN: | |
424 | case S_TRISTATE: | |
425 | switch (sym_get_tristate_value(sym)) { | |
426 | case no: | |
427 | if (write_no) | |
ffb5957b AL |
428 | fprintf(out, "# %s%s is not set\n", |
429 | CONFIG_, sym->name); | |
49192f26 SR |
430 | break; |
431 | case mod: | |
ffb5957b | 432 | fprintf(out, "%s%s=m\n", CONFIG_, sym->name); |
49192f26 SR |
433 | break; |
434 | case yes: | |
ffb5957b | 435 | fprintf(out, "%s%s=y\n", CONFIG_, sym->name); |
49192f26 SR |
436 | break; |
437 | } | |
438 | break; | |
439 | case S_STRING: | |
440 | conf_write_string(false, sym->name, sym_get_string_value(sym), out); | |
441 | break; | |
442 | case S_HEX: | |
443 | case S_INT: | |
444 | str = sym_get_string_value(sym); | |
ffb5957b | 445 | fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str); |
49192f26 SR |
446 | break; |
447 | case S_OTHER: | |
448 | case S_UNKNOWN: | |
449 | break; | |
450 | } | |
451 | } | |
452 | ||
7cf3d73b SR |
453 | /* |
454 | * Write out a minimal config. | |
455 | * All values that has default values are skipped as this is redundant. | |
456 | */ | |
457 | int conf_write_defconfig(const char *filename) | |
458 | { | |
459 | struct symbol *sym; | |
460 | struct menu *menu; | |
461 | FILE *out; | |
462 | ||
463 | out = fopen(filename, "w"); | |
464 | if (!out) | |
465 | return 1; | |
466 | ||
467 | sym_clear_all_valid(); | |
468 | ||
469 | /* Traverse all menus to find all relevant symbols */ | |
470 | menu = rootmenu.list; | |
471 | ||
472 | while (menu != NULL) | |
473 | { | |
474 | sym = menu->sym; | |
475 | if (sym == NULL) { | |
476 | if (!menu_is_visible(menu)) | |
477 | goto next_menu; | |
478 | } else if (!sym_is_choice(sym)) { | |
479 | sym_calc_value(sym); | |
480 | if (!(sym->flags & SYMBOL_WRITE)) | |
481 | goto next_menu; | |
482 | sym->flags &= ~SYMBOL_WRITE; | |
483 | /* If we cannot change the symbol - skip */ | |
484 | if (!sym_is_changable(sym)) | |
485 | goto next_menu; | |
486 | /* If symbol equals to default value - skip */ | |
487 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
488 | goto next_menu; | |
489 | ||
490 | /* | |
491 | * If symbol is a choice value and equals to the | |
492 | * default for a choice - skip. | |
84062dd3 SR |
493 | * But only if value is bool and equal to "y" and |
494 | * choice is not "optional". | |
495 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
496 | */ |
497 | if (sym_is_choice_value(sym)) { | |
498 | struct symbol *cs; | |
499 | struct symbol *ds; | |
500 | ||
501 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
502 | ds = sym_choice_default(cs); | |
84062dd3 | 503 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
504 | if ((sym->type == S_BOOLEAN) && |
505 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
506 | goto next_menu; |
507 | } | |
508 | } | |
509 | conf_write_symbol(sym, sym->type, out, true); | |
510 | } | |
511 | next_menu: | |
512 | if (menu->list != NULL) { | |
513 | menu = menu->list; | |
514 | } | |
515 | else if (menu->next != NULL) { | |
516 | menu = menu->next; | |
517 | } else { | |
518 | while ((menu = menu->parent)) { | |
519 | if (menu->next != NULL) { | |
520 | menu = menu->next; | |
521 | break; | |
522 | } | |
523 | } | |
524 | } | |
525 | } | |
526 | fclose(out); | |
527 | return 0; | |
528 | } | |
529 | ||
1da177e4 LT |
530 | int conf_write(const char *name) |
531 | { | |
c955ccaf | 532 | FILE *out; |
1da177e4 LT |
533 | struct symbol *sym; |
534 | struct menu *menu; | |
535 | const char *basename; | |
1da177e4 | 536 | const char *str; |
49192f26 SR |
537 | char dirname[128], tmpname[128], newname[128]; |
538 | enum symbol_type type; | |
1da177e4 LT |
539 | time_t now; |
540 | int use_timestamp = 1; | |
541 | char *env; | |
542 | ||
543 | dirname[0] = 0; | |
544 | if (name && name[0]) { | |
545 | struct stat st; | |
546 | char *slash; | |
547 | ||
548 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
549 | strcpy(dirname, name); | |
550 | strcat(dirname, "/"); | |
14cdd3c4 | 551 | basename = conf_get_configname(); |
1da177e4 LT |
552 | } else if ((slash = strrchr(name, '/'))) { |
553 | int size = slash - name + 1; | |
554 | memcpy(dirname, name, size); | |
555 | dirname[size] = 0; | |
556 | if (slash[1]) | |
557 | basename = slash + 1; | |
558 | else | |
14cdd3c4 | 559 | basename = conf_get_configname(); |
1da177e4 LT |
560 | } else |
561 | basename = name; | |
562 | } else | |
14cdd3c4 | 563 | basename = conf_get_configname(); |
1da177e4 | 564 | |
14cdd3c4 RZ |
565 | sprintf(newname, "%s%s", dirname, basename); |
566 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
567 | if (!env || !*env) { | |
568 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
569 | out = fopen(tmpname, "w"); | |
570 | } else { | |
571 | *tmpname = 0; | |
572 | out = fopen(newname, "w"); | |
573 | } | |
1da177e4 LT |
574 | if (!out) |
575 | return 1; | |
14cdd3c4 | 576 | |
1da177e4 LT |
577 | time(&now); |
578 | env = getenv("KCONFIG_NOTIMESTAMP"); | |
579 | if (env && *env) | |
580 | use_timestamp = 0; | |
581 | ||
3b9fa093 ACM |
582 | fprintf(out, _("#\n" |
583 | "# Automatically generated make config: don't edit\n" | |
0954828f | 584 | "# %s\n" |
3b9fa093 ACM |
585 | "%s%s" |
586 | "#\n"), | |
0954828f | 587 | rootmenu.prompt->text, |
1da177e4 LT |
588 | use_timestamp ? "# " : "", |
589 | use_timestamp ? ctime(&now) : ""); | |
1da177e4 | 590 | |
b3214293 | 591 | if (!conf_get_changed()) |
1da177e4 LT |
592 | sym_clear_all_valid(); |
593 | ||
594 | menu = rootmenu.list; | |
595 | while (menu) { | |
596 | sym = menu->sym; | |
597 | if (!sym) { | |
598 | if (!menu_is_visible(menu)) | |
599 | goto next; | |
600 | str = menu_get_prompt(menu); | |
601 | fprintf(out, "\n" | |
602 | "#\n" | |
603 | "# %s\n" | |
604 | "#\n", str); | |
1da177e4 LT |
605 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
606 | sym_calc_value(sym); | |
607 | if (!(sym->flags & SYMBOL_WRITE)) | |
608 | goto next; | |
609 | sym->flags &= ~SYMBOL_WRITE; | |
610 | type = sym->type; | |
611 | if (type == S_TRISTATE) { | |
612 | sym_calc_value(modules_sym); | |
613 | if (modules_sym->curr.tri == no) | |
614 | type = S_BOOLEAN; | |
615 | } | |
49192f26 SR |
616 | /* Write config symbol to file */ |
617 | conf_write_symbol(sym, type, out, true); | |
1da177e4 LT |
618 | } |
619 | ||
49192f26 | 620 | next: |
1da177e4 LT |
621 | if (menu->list) { |
622 | menu = menu->list; | |
623 | continue; | |
624 | } | |
625 | if (menu->next) | |
626 | menu = menu->next; | |
627 | else while ((menu = menu->parent)) { | |
628 | if (menu->next) { | |
629 | menu = menu->next; | |
630 | break; | |
631 | } | |
632 | } | |
633 | } | |
634 | fclose(out); | |
14cdd3c4 RZ |
635 | |
636 | if (*tmpname) { | |
9a3d0fe8 | 637 | strcat(dirname, basename); |
14cdd3c4 RZ |
638 | strcat(dirname, ".old"); |
639 | rename(newname, dirname); | |
640 | if (rename(tmpname, newname)) | |
641 | return 1; | |
1da177e4 | 642 | } |
1da177e4 | 643 | |
ddc97cac RZ |
644 | printf(_("#\n" |
645 | "# configuration written to %s\n" | |
14cdd3c4 | 646 | "#\n"), newname); |
ddc97cac | 647 | |
bfc10001 | 648 | sym_set_change_count(0); |
1da177e4 LT |
649 | |
650 | return 0; | |
651 | } | |
c955ccaf | 652 | |
4356f489 | 653 | static int conf_split_config(void) |
2e3646e5 | 654 | { |
12122f62 MH |
655 | const char *name; |
656 | char path[128]; | |
2e3646e5 RZ |
657 | char *s, *d, c; |
658 | struct symbol *sym; | |
659 | struct stat sb; | |
660 | int res, i, fd; | |
661 | ||
12122f62 | 662 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
663 | conf_read_simple(name, S_DEF_AUTO); |
664 | ||
665 | if (chdir("include/config")) | |
666 | return 1; | |
667 | ||
668 | res = 0; | |
669 | for_all_symbols(i, sym) { | |
670 | sym_calc_value(sym); | |
671 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
672 | continue; | |
673 | if (sym->flags & SYMBOL_WRITE) { | |
674 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
675 | /* | |
676 | * symbol has old and new value, | |
677 | * so compare them... | |
678 | */ | |
679 | switch (sym->type) { | |
680 | case S_BOOLEAN: | |
681 | case S_TRISTATE: | |
682 | if (sym_get_tristate_value(sym) == | |
683 | sym->def[S_DEF_AUTO].tri) | |
684 | continue; | |
685 | break; | |
686 | case S_STRING: | |
687 | case S_HEX: | |
688 | case S_INT: | |
689 | if (!strcmp(sym_get_string_value(sym), | |
690 | sym->def[S_DEF_AUTO].val)) | |
691 | continue; | |
692 | break; | |
693 | default: | |
694 | break; | |
695 | } | |
696 | } else { | |
697 | /* | |
698 | * If there is no old value, only 'no' (unset) | |
699 | * is allowed as new value. | |
700 | */ | |
701 | switch (sym->type) { | |
702 | case S_BOOLEAN: | |
703 | case S_TRISTATE: | |
704 | if (sym_get_tristate_value(sym) == no) | |
705 | continue; | |
706 | break; | |
707 | default: | |
708 | break; | |
709 | } | |
710 | } | |
711 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
712 | /* There is neither an old nor a new value. */ | |
713 | continue; | |
714 | /* else | |
715 | * There is an old value, but no new value ('no' (unset) | |
716 | * isn't saved in auto.conf, so the old value is always | |
717 | * different from 'no'). | |
718 | */ | |
719 | ||
720 | /* Replace all '_' and append ".h" */ | |
721 | s = sym->name; | |
722 | d = path; | |
723 | while ((c = *s++)) { | |
724 | c = tolower(c); | |
725 | *d++ = (c == '_') ? '/' : c; | |
726 | } | |
727 | strcpy(d, ".h"); | |
728 | ||
729 | /* Assume directory path already exists. */ | |
730 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
731 | if (fd == -1) { | |
732 | if (errno != ENOENT) { | |
733 | res = 1; | |
734 | break; | |
735 | } | |
736 | /* | |
737 | * Create directory components, | |
738 | * unless they exist already. | |
739 | */ | |
740 | d = path; | |
741 | while ((d = strchr(d, '/'))) { | |
742 | *d = 0; | |
743 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
744 | res = 1; | |
745 | goto out; | |
746 | } | |
747 | *d++ = '/'; | |
748 | } | |
749 | /* Try it again. */ | |
750 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
751 | if (fd == -1) { | |
752 | res = 1; | |
753 | break; | |
754 | } | |
755 | } | |
756 | close(fd); | |
757 | } | |
758 | out: | |
759 | if (chdir("../..")) | |
760 | return 1; | |
761 | ||
762 | return res; | |
763 | } | |
764 | ||
c955ccaf RZ |
765 | int conf_write_autoconf(void) |
766 | { | |
767 | struct symbol *sym; | |
768 | const char *str; | |
12122f62 | 769 | const char *name; |
bc081dd6 | 770 | FILE *out, *tristate, *out_h; |
c955ccaf | 771 | time_t now; |
49192f26 | 772 | int i; |
c955ccaf | 773 | |
2e3646e5 RZ |
774 | sym_clear_all_valid(); |
775 | ||
c955ccaf RZ |
776 | file_write_dep("include/config/auto.conf.cmd"); |
777 | ||
2e3646e5 RZ |
778 | if (conf_split_config()) |
779 | return 1; | |
780 | ||
c955ccaf RZ |
781 | out = fopen(".tmpconfig", "w"); |
782 | if (!out) | |
783 | return 1; | |
784 | ||
bc081dd6 MM |
785 | tristate = fopen(".tmpconfig_tristate", "w"); |
786 | if (!tristate) { | |
787 | fclose(out); | |
788 | return 1; | |
789 | } | |
790 | ||
c955ccaf RZ |
791 | out_h = fopen(".tmpconfig.h", "w"); |
792 | if (!out_h) { | |
793 | fclose(out); | |
bc081dd6 | 794 | fclose(tristate); |
c955ccaf RZ |
795 | return 1; |
796 | } | |
797 | ||
c955ccaf RZ |
798 | time(&now); |
799 | fprintf(out, "#\n" | |
800 | "# Automatically generated make config: don't edit\n" | |
0954828f | 801 | "# %s\n" |
c955ccaf RZ |
802 | "# %s" |
803 | "#\n", | |
0954828f | 804 | rootmenu.prompt->text, ctime(&now)); |
bc081dd6 MM |
805 | fprintf(tristate, "#\n" |
806 | "# Automatically generated - do not edit\n" | |
807 | "\n"); | |
c955ccaf RZ |
808 | fprintf(out_h, "/*\n" |
809 | " * Automatically generated C config: don't edit\n" | |
0954828f | 810 | " * %s\n" |
c955ccaf RZ |
811 | " * %s" |
812 | " */\n" | |
813 | "#define AUTOCONF_INCLUDED\n", | |
0954828f | 814 | rootmenu.prompt->text, ctime(&now)); |
c955ccaf | 815 | |
c955ccaf RZ |
816 | for_all_symbols(i, sym) { |
817 | sym_calc_value(sym); | |
818 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) | |
819 | continue; | |
49192f26 SR |
820 | |
821 | /* write symbol to config file */ | |
822 | conf_write_symbol(sym, sym->type, out, false); | |
823 | ||
824 | /* update autoconf and tristate files */ | |
c955ccaf RZ |
825 | switch (sym->type) { |
826 | case S_BOOLEAN: | |
827 | case S_TRISTATE: | |
828 | switch (sym_get_tristate_value(sym)) { | |
829 | case no: | |
830 | break; | |
831 | case mod: | |
ffb5957b AL |
832 | fprintf(tristate, "%s%s=M\n", |
833 | CONFIG_, sym->name); | |
834 | fprintf(out_h, "#define %s%s_MODULE 1\n", | |
835 | CONFIG_, sym->name); | |
c955ccaf RZ |
836 | break; |
837 | case yes: | |
bc081dd6 | 838 | if (sym->type == S_TRISTATE) |
ffb5957b AL |
839 | fprintf(tristate,"%s%s=Y\n", |
840 | CONFIG_, sym->name); | |
841 | fprintf(out_h, "#define %s%s 1\n", | |
842 | CONFIG_, sym->name); | |
c955ccaf RZ |
843 | break; |
844 | } | |
845 | break; | |
846 | case S_STRING: | |
49192f26 | 847 | conf_write_string(true, sym->name, sym_get_string_value(sym), out_h); |
c955ccaf RZ |
848 | break; |
849 | case S_HEX: | |
850 | str = sym_get_string_value(sym); | |
851 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { | |
ffb5957b AL |
852 | fprintf(out_h, "#define %s%s 0x%s\n", |
853 | CONFIG_, sym->name, str); | |
c955ccaf RZ |
854 | break; |
855 | } | |
856 | case S_INT: | |
857 | str = sym_get_string_value(sym); | |
ffb5957b AL |
858 | fprintf(out_h, "#define %s%s %s\n", |
859 | CONFIG_, sym->name, str); | |
c955ccaf RZ |
860 | break; |
861 | default: | |
862 | break; | |
863 | } | |
864 | } | |
865 | fclose(out); | |
bc081dd6 | 866 | fclose(tristate); |
c955ccaf RZ |
867 | fclose(out_h); |
868 | ||
869 | name = getenv("KCONFIG_AUTOHEADER"); | |
870 | if (!name) | |
264a2683 | 871 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
872 | if (rename(".tmpconfig.h", name)) |
873 | return 1; | |
bc081dd6 MM |
874 | name = getenv("KCONFIG_TRISTATE"); |
875 | if (!name) | |
876 | name = "include/config/tristate.conf"; | |
877 | if (rename(".tmpconfig_tristate", name)) | |
878 | return 1; | |
12122f62 | 879 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
880 | /* |
881 | * This must be the last step, kbuild has a dependency on auto.conf | |
882 | * and this marks the successful completion of the previous steps. | |
883 | */ | |
884 | if (rename(".tmpconfig", name)) | |
885 | return 1; | |
886 | ||
887 | return 0; | |
888 | } | |
b3214293 | 889 | |
bfc10001 | 890 | static int sym_change_count; |
3b354c55 | 891 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
892 | |
893 | void sym_set_change_count(int count) | |
894 | { | |
3b354c55 | 895 | int _sym_change_count = sym_change_count; |
bfc10001 | 896 | sym_change_count = count; |
3b354c55 KW |
897 | if (conf_changed_callback && |
898 | (bool)_sym_change_count != (bool)count) | |
899 | conf_changed_callback(); | |
bfc10001 KW |
900 | } |
901 | ||
902 | void sym_add_change_count(int count) | |
903 | { | |
3b354c55 | 904 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
905 | } |
906 | ||
b3214293 KW |
907 | bool conf_get_changed(void) |
908 | { | |
909 | return sym_change_count; | |
910 | } | |
3b354c55 KW |
911 | |
912 | void conf_set_changed_callback(void (*fn)(void)) | |
913 | { | |
914 | conf_changed_callback = fn; | |
915 | } | |
dc7862e5 | 916 | |
a64b44ea SR |
917 | static void randomize_choice_values(struct symbol *csym) |
918 | { | |
919 | struct property *prop; | |
920 | struct symbol *sym; | |
921 | struct expr *e; | |
922 | int cnt, def; | |
dc7862e5 | 923 | |
a64b44ea SR |
924 | /* |
925 | * If choice is mod then we may have more items slected | |
926 | * and if no then no-one. | |
927 | * In both cases stop. | |
928 | */ | |
929 | if (csym->curr.tri != yes) | |
930 | return; | |
931 | ||
932 | prop = sym_get_choice_prop(csym); | |
933 | ||
934 | /* count entries in choice block */ | |
935 | cnt = 0; | |
936 | expr_list_for_each_sym(prop->expr, e, sym) | |
937 | cnt++; | |
938 | ||
939 | /* | |
940 | * find a random value and set it to yes, | |
941 | * set the rest to no so we have only one set | |
942 | */ | |
943 | def = (rand() % cnt); | |
944 | ||
945 | cnt = 0; | |
946 | expr_list_for_each_sym(prop->expr, e, sym) { | |
947 | if (def == cnt++) { | |
948 | sym->def[S_DEF_USER].tri = yes; | |
949 | csym->def[S_DEF_USER].val = sym; | |
950 | } | |
951 | else { | |
952 | sym->def[S_DEF_USER].tri = no; | |
953 | } | |
954 | } | |
955 | csym->flags |= SYMBOL_DEF_USER; | |
956 | /* clear VALID to get value calculated */ | |
957 | csym->flags &= ~(SYMBOL_VALID); | |
958 | } | |
959 | ||
960 | static void set_all_choice_values(struct symbol *csym) | |
dc7862e5 | 961 | { |
dc7862e5 | 962 | struct property *prop; |
a64b44ea | 963 | struct symbol *sym; |
dc7862e5 | 964 | struct expr *e; |
a64b44ea SR |
965 | |
966 | prop = sym_get_choice_prop(csym); | |
967 | ||
968 | /* | |
969 | * Set all non-assinged choice values to no | |
970 | */ | |
971 | expr_list_for_each_sym(prop->expr, e, sym) { | |
972 | if (!sym_has_value(sym)) | |
973 | sym->def[S_DEF_USER].tri = no; | |
974 | } | |
975 | csym->flags |= SYMBOL_DEF_USER; | |
976 | /* clear VALID to get value calculated */ | |
977 | csym->flags &= ~(SYMBOL_VALID); | |
978 | } | |
979 | ||
980 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
981 | { | |
982 | struct symbol *sym, *csym; | |
983 | int i, cnt; | |
dc7862e5 RZ |
984 | |
985 | for_all_symbols(i, sym) { | |
986 | if (sym_has_value(sym)) | |
987 | continue; | |
988 | switch (sym_get_type(sym)) { | |
989 | case S_BOOLEAN: | |
990 | case S_TRISTATE: | |
991 | switch (mode) { | |
992 | case def_yes: | |
993 | sym->def[S_DEF_USER].tri = yes; | |
994 | break; | |
995 | case def_mod: | |
996 | sym->def[S_DEF_USER].tri = mod; | |
997 | break; | |
998 | case def_no: | |
999 | sym->def[S_DEF_USER].tri = no; | |
1000 | break; | |
1001 | case def_random: | |
1244b41d PK |
1002 | cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2; |
1003 | sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); | |
dc7862e5 RZ |
1004 | break; |
1005 | default: | |
1006 | continue; | |
1007 | } | |
184832c9 | 1008 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1009 | sym->flags |= SYMBOL_DEF_USER; |
1010 | break; | |
1011 | default: | |
1012 | break; | |
1013 | } | |
1014 | ||
1015 | } | |
1016 | ||
ce97e13e | 1017 | sym_clear_all_valid(); |
dc7862e5 | 1018 | |
184832c9 SR |
1019 | /* |
1020 | * We have different type of choice blocks. | |
1021 | * If curr.tri equal to mod then we can select several | |
1022 | * choice symbols in one block. | |
1023 | * In this case we do nothing. | |
1024 | * If curr.tri equal yes then only one symbol can be | |
1025 | * selected in a choice block and we set it to yes, | |
1026 | * and the rest to no. | |
1027 | */ | |
dc7862e5 RZ |
1028 | for_all_symbols(i, csym) { |
1029 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1030 | continue; | |
1031 | ||
1032 | sym_calc_value(csym); | |
a64b44ea SR |
1033 | if (mode == def_random) |
1034 | randomize_choice_values(csym); | |
1035 | else | |
1036 | set_all_choice_values(csym); | |
dc7862e5 RZ |
1037 | } |
1038 | } |