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> |
10a4b277 | 10 | #include <stdarg.h> |
1da177e4 LT |
11 | #include <stdio.h> |
12 | #include <stdlib.h> | |
13 | #include <string.h> | |
14 | #include <time.h> | |
15 | #include <unistd.h> | |
16 | ||
1da177e4 LT |
17 | #include "lkc.h" |
18 | ||
c1a0f5e3 RZ |
19 | static void conf_warning(const char *fmt, ...) |
20 | __attribute__ ((format (printf, 1, 2))); | |
21 | ||
42368c37 MM |
22 | static void conf_message(const char *fmt, ...) |
23 | __attribute__ ((format (printf, 1, 2))); | |
24 | ||
c1a0f5e3 RZ |
25 | static const char *conf_filename; |
26 | static int conf_lineno, conf_warnings, conf_unsaved; | |
27 | ||
1da177e4 LT |
28 | const char conf_defname[] = "arch/$ARCH/defconfig"; |
29 | ||
c1a0f5e3 RZ |
30 | static void conf_warning(const char *fmt, ...) |
31 | { | |
32 | va_list ap; | |
33 | va_start(ap, fmt); | |
34 | fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); | |
35 | vfprintf(stderr, fmt, ap); | |
36 | fprintf(stderr, "\n"); | |
37 | va_end(ap); | |
38 | conf_warnings++; | |
39 | } | |
40 | ||
42368c37 MM |
41 | static void conf_default_message_callback(const char *fmt, va_list ap) |
42 | { | |
43 | printf("#\n# "); | |
44 | vprintf(fmt, ap); | |
45 | printf("\n#\n"); | |
46 | } | |
47 | ||
48 | static void (*conf_message_callback) (const char *fmt, va_list ap) = | |
49 | conf_default_message_callback; | |
50 | void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap)) | |
51 | { | |
52 | conf_message_callback = fn; | |
53 | } | |
54 | ||
55 | static void conf_message(const char *fmt, ...) | |
56 | { | |
57 | va_list ap; | |
58 | ||
59 | va_start(ap, fmt); | |
60 | if (conf_message_callback) | |
61 | conf_message_callback(fmt, ap); | |
62 | } | |
63 | ||
14cdd3c4 RZ |
64 | const char *conf_get_configname(void) |
65 | { | |
66 | char *name = getenv("KCONFIG_CONFIG"); | |
67 | ||
68 | return name ? name : ".config"; | |
69 | } | |
70 | ||
12122f62 MH |
71 | const char *conf_get_autoconfig_name(void) |
72 | { | |
73 | char *name = getenv("KCONFIG_AUTOCONFIG"); | |
74 | ||
75 | return name ? name : "include/config/auto.conf"; | |
76 | } | |
77 | ||
48b9d03c | 78 | static char *conf_expand_value(const char *in) |
1da177e4 LT |
79 | { |
80 | struct symbol *sym; | |
48b9d03c | 81 | const char *src; |
1da177e4 LT |
82 | static char res_value[SYMBOL_MAXLENGTH]; |
83 | char *dst, name[SYMBOL_MAXLENGTH]; | |
84 | ||
85 | res_value[0] = 0; | |
86 | dst = name; | |
87 | while ((src = strchr(in, '$'))) { | |
88 | strncat(res_value, in, src - in); | |
89 | src++; | |
90 | dst = name; | |
91 | while (isalnum(*src) || *src == '_') | |
92 | *dst++ = *src++; | |
93 | *dst = 0; | |
94 | sym = sym_lookup(name, 0); | |
95 | sym_calc_value(sym); | |
96 | strcat(res_value, sym_get_string_value(sym)); | |
97 | in = src; | |
98 | } | |
99 | strcat(res_value, in); | |
100 | ||
101 | return res_value; | |
102 | } | |
103 | ||
104 | char *conf_get_default_confname(void) | |
105 | { | |
106 | struct stat buf; | |
107 | static char fullname[PATH_MAX+1]; | |
108 | char *env, *name; | |
109 | ||
110 | name = conf_expand_value(conf_defname); | |
111 | env = getenv(SRCTREE); | |
112 | if (env) { | |
113 | sprintf(fullname, "%s/%s", env, name); | |
114 | if (!stat(fullname, &buf)) | |
115 | return fullname; | |
116 | } | |
117 | return name; | |
118 | } | |
119 | ||
9c900a9c SR |
120 | static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) |
121 | { | |
122 | char *p2; | |
123 | ||
124 | switch (sym->type) { | |
125 | case S_TRISTATE: | |
126 | if (p[0] == 'm') { | |
127 | sym->def[def].tri = mod; | |
128 | sym->flags |= def_flags; | |
129 | break; | |
130 | } | |
d8fc3200 | 131 | /* fall through */ |
9c900a9c SR |
132 | case S_BOOLEAN: |
133 | if (p[0] == 'y') { | |
134 | sym->def[def].tri = yes; | |
135 | sym->flags |= def_flags; | |
136 | break; | |
137 | } | |
138 | if (p[0] == 'n') { | |
139 | sym->def[def].tri = no; | |
140 | sym->flags |= def_flags; | |
141 | break; | |
142 | } | |
143 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
75f1468b | 144 | return 1; |
9c900a9c SR |
145 | case S_OTHER: |
146 | if (*p != '"') { | |
147 | for (p2 = p; *p2 && !isspace(*p2); p2++) | |
148 | ; | |
149 | sym->type = S_STRING; | |
150 | goto done; | |
151 | } | |
d8fc3200 | 152 | /* fall through */ |
9c900a9c SR |
153 | case S_STRING: |
154 | if (*p++ != '"') | |
155 | break; | |
156 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { | |
157 | if (*p2 == '"') { | |
158 | *p2 = 0; | |
159 | break; | |
160 | } | |
161 | memmove(p2, p2 + 1, strlen(p2)); | |
162 | } | |
163 | if (!p2) { | |
164 | conf_warning("invalid string found"); | |
165 | return 1; | |
166 | } | |
d8fc3200 | 167 | /* fall through */ |
9c900a9c SR |
168 | case S_INT: |
169 | case S_HEX: | |
170 | done: | |
171 | if (sym_string_valid(sym, p)) { | |
172 | sym->def[def].val = strdup(p); | |
173 | sym->flags |= def_flags; | |
174 | } else { | |
175 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
176 | return 1; | |
177 | } | |
178 | break; | |
179 | default: | |
180 | ; | |
181 | } | |
182 | return 0; | |
183 | } | |
184 | ||
669bfad9 | 185 | int conf_read_simple(const char *name, int def) |
1da177e4 LT |
186 | { |
187 | FILE *in = NULL; | |
188 | char line[1024]; | |
189 | char *p, *p2; | |
1da177e4 | 190 | struct symbol *sym; |
669bfad9 | 191 | int i, def_flags; |
1da177e4 LT |
192 | |
193 | if (name) { | |
194 | in = zconf_fopen(name); | |
195 | } else { | |
face4374 RZ |
196 | struct property *prop; |
197 | ||
14cdd3c4 | 198 | name = conf_get_configname(); |
ddc97cac RZ |
199 | in = zconf_fopen(name); |
200 | if (in) | |
201 | goto load; | |
bfc10001 | 202 | sym_add_change_count(1); |
ac1ffde1 UM |
203 | if (!sym_defconfig_list) { |
204 | if (modules_sym) | |
205 | sym_calc_value(modules_sym); | |
face4374 | 206 | return 1; |
ac1ffde1 | 207 | } |
face4374 RZ |
208 | |
209 | for_all_defaults(sym_defconfig_list, prop) { | |
210 | if (expr_calc_value(prop->visible.expr) == no || | |
211 | prop->expr->type != E_SYMBOL) | |
212 | continue; | |
213 | name = conf_expand_value(prop->expr->left.sym->name); | |
1da177e4 LT |
214 | in = zconf_fopen(name); |
215 | if (in) { | |
42368c37 MM |
216 | conf_message(_("using defaults found in %s"), |
217 | name); | |
ddc97cac | 218 | goto load; |
1da177e4 LT |
219 | } |
220 | } | |
221 | } | |
1da177e4 LT |
222 | if (!in) |
223 | return 1; | |
224 | ||
ddc97cac | 225 | load: |
c1a0f5e3 RZ |
226 | conf_filename = name; |
227 | conf_lineno = 0; | |
228 | conf_warnings = 0; | |
229 | conf_unsaved = 0; | |
230 | ||
669bfad9 | 231 | def_flags = SYMBOL_DEF << def; |
1da177e4 | 232 | for_all_symbols(i, sym) { |
669bfad9 RZ |
233 | sym->flags |= SYMBOL_CHANGED; |
234 | sym->flags &= ~(def_flags|SYMBOL_VALID); | |
c1a0f5e3 | 235 | if (sym_is_choice(sym)) |
669bfad9 | 236 | sym->flags |= def_flags; |
1da177e4 LT |
237 | switch (sym->type) { |
238 | case S_INT: | |
239 | case S_HEX: | |
240 | case S_STRING: | |
669bfad9 RZ |
241 | if (sym->def[def].val) |
242 | free(sym->def[def].val); | |
d8fc3200 | 243 | /* fall through */ |
1da177e4 | 244 | default: |
669bfad9 RZ |
245 | sym->def[def].val = NULL; |
246 | sym->def[def].tri = no; | |
1da177e4 LT |
247 | } |
248 | } | |
249 | ||
250 | while (fgets(line, sizeof(line), in)) { | |
c1a0f5e3 | 251 | conf_lineno++; |
1da177e4 | 252 | sym = NULL; |
8baefd30 | 253 | if (line[0] == '#') { |
ffb5957b | 254 | if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) |
1da177e4 | 255 | continue; |
ffb5957b | 256 | p = strchr(line + 2 + strlen(CONFIG_), ' '); |
1da177e4 LT |
257 | if (!p) |
258 | continue; | |
259 | *p++ = 0; | |
260 | if (strncmp(p, "is not set", 10)) | |
261 | continue; | |
669bfad9 | 262 | if (def == S_DEF_USER) { |
ffb5957b | 263 | sym = sym_find(line + 2 + strlen(CONFIG_)); |
661b0680 | 264 | if (!sym) { |
265 | sym_add_change_count(1); | |
8bea7548 | 266 | goto setsym; |
661b0680 | 267 | } |
669bfad9 | 268 | } else { |
ffb5957b | 269 | sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); |
669bfad9 RZ |
270 | if (sym->type == S_UNKNOWN) |
271 | sym->type = S_BOOLEAN; | |
272 | } | |
273 | if (sym->flags & def_flags) { | |
d84876f9 | 274 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 LT |
275 | } |
276 | switch (sym->type) { | |
277 | case S_BOOLEAN: | |
278 | case S_TRISTATE: | |
669bfad9 RZ |
279 | sym->def[def].tri = no; |
280 | sym->flags |= def_flags; | |
1da177e4 LT |
281 | break; |
282 | default: | |
283 | ; | |
284 | } | |
ffb5957b AL |
285 | } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { |
286 | p = strchr(line + strlen(CONFIG_), '='); | |
1da177e4 LT |
287 | if (!p) |
288 | continue; | |
289 | *p++ = 0; | |
290 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
291 | if (p2) { |
292 | *p2-- = 0; | |
293 | if (*p2 == '\r') | |
294 | *p2 = 0; | |
295 | } | |
669bfad9 | 296 | if (def == S_DEF_USER) { |
ffb5957b | 297 | sym = sym_find(line + strlen(CONFIG_)); |
661b0680 | 298 | if (!sym) { |
299 | sym_add_change_count(1); | |
8bea7548 | 300 | goto setsym; |
661b0680 | 301 | } |
669bfad9 | 302 | } else { |
ffb5957b | 303 | sym = sym_lookup(line + strlen(CONFIG_), 0); |
669bfad9 RZ |
304 | if (sym->type == S_UNKNOWN) |
305 | sym->type = S_OTHER; | |
306 | } | |
307 | if (sym->flags & def_flags) { | |
d84876f9 | 308 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 309 | } |
9c900a9c SR |
310 | if (conf_set_sym_val(sym, def, def_flags, p)) |
311 | continue; | |
8baefd30 AL |
312 | } else { |
313 | if (line[0] != '\r' && line[0] != '\n') | |
314 | conf_warning("unexpected data"); | |
1da177e4 LT |
315 | continue; |
316 | } | |
8bea7548 | 317 | setsym: |
1da177e4 LT |
318 | if (sym && sym_is_choice_value(sym)) { |
319 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 320 | switch (sym->def[def].tri) { |
1da177e4 LT |
321 | case no: |
322 | break; | |
323 | case mod: | |
669bfad9 | 324 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 325 | conf_warning("%s creates inconsistent choice state", sym->name); |
669bfad9 | 326 | cs->flags &= ~def_flags; |
c1a0f5e3 | 327 | } |
1da177e4 LT |
328 | break; |
329 | case yes: | |
d84876f9 JE |
330 | if (cs->def[def].tri != no) |
331 | conf_warning("override: %s changes choice state", sym->name); | |
332 | cs->def[def].val = sym; | |
1da177e4 LT |
333 | break; |
334 | } | |
d6ee3576 | 335 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
336 | } |
337 | } | |
338 | fclose(in); | |
339 | ||
340 | if (modules_sym) | |
341 | sym_calc_value(modules_sym); | |
90389160 RZ |
342 | return 0; |
343 | } | |
344 | ||
345 | int conf_read(const char *name) | |
346 | { | |
7a962923 | 347 | struct symbol *sym, *choice_sym; |
90389160 RZ |
348 | struct property *prop; |
349 | struct expr *e; | |
669bfad9 | 350 | int i, flags; |
90389160 | 351 | |
bfc10001 | 352 | sym_set_change_count(0); |
ddc97cac | 353 | |
669bfad9 | 354 | if (conf_read_simple(name, S_DEF_USER)) |
90389160 RZ |
355 | return 1; |
356 | ||
1da177e4 LT |
357 | for_all_symbols(i, sym) { |
358 | sym_calc_value(sym); | |
c1a0f5e3 RZ |
359 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
360 | goto sym_ok; | |
361 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { | |
362 | /* check that calculated value agrees with saved value */ | |
363 | switch (sym->type) { | |
364 | case S_BOOLEAN: | |
365 | case S_TRISTATE: | |
0c1822e6 | 366 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
367 | break; |
368 | if (!sym_is_choice(sym)) | |
369 | goto sym_ok; | |
d8fc3200 | 370 | /* fall through */ |
c1a0f5e3 | 371 | default: |
0c1822e6 | 372 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
c1a0f5e3 RZ |
373 | goto sym_ok; |
374 | break; | |
375 | } | |
376 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
377 | /* no previous value and not saved */ | |
378 | goto sym_ok; | |
379 | conf_unsaved++; | |
380 | /* maybe print value in verbose mode... */ | |
381 | sym_ok: | |
d8982ba1 RZ |
382 | if (!sym_is_choice(sym)) |
383 | continue; | |
384 | /* The choice symbol only has a set value (and thus is not new) | |
385 | * if all its visible childs have values. | |
386 | */ | |
387 | prop = sym_get_choice_prop(sym); | |
388 | flags = sym->flags; | |
7a962923 RZ |
389 | expr_list_for_each_sym(prop->expr, e, choice_sym) |
390 | if (choice_sym->visible != no) | |
391 | flags &= choice_sym->flags; | |
d8982ba1 RZ |
392 | sym->flags &= flags | ~SYMBOL_DEF_USER; |
393 | } | |
394 | ||
395 | for_all_symbols(i, sym) { | |
1da177e4 | 396 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
397 | /* Reset values of generates values, so they'll appear |
398 | * as new, if they should become visible, but that | |
399 | * doesn't quite work if the Kconfig and the saved | |
400 | * configuration disagree. | |
401 | */ | |
402 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 403 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
404 | switch (sym->type) { |
405 | case S_STRING: | |
406 | case S_INT: | |
407 | case S_HEX: | |
d8982ba1 RZ |
408 | /* Reset a string value if it's out of range */ |
409 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
410 | break; | |
411 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
412 | conf_unsaved++; | |
413 | break; | |
1da177e4 LT |
414 | default: |
415 | break; | |
416 | } | |
417 | } | |
1da177e4 LT |
418 | } |
419 | ||
bfc10001 | 420 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
421 | |
422 | return 0; | |
423 | } | |
424 | ||
49192f26 SR |
425 | /* Write a S_STRING */ |
426 | static void conf_write_string(bool headerfile, const char *name, | |
427 | const char *str, FILE *out) | |
428 | { | |
429 | int l; | |
430 | if (headerfile) | |
ffb5957b | 431 | fprintf(out, "#define %s%s \"", CONFIG_, name); |
49192f26 | 432 | else |
ffb5957b | 433 | fprintf(out, "%s%s=\"", CONFIG_, name); |
49192f26 SR |
434 | |
435 | while (1) { | |
436 | l = strcspn(str, "\"\\"); | |
437 | if (l) { | |
bf5e327a | 438 | xfwrite(str, l, 1, out); |
49192f26 SR |
439 | str += l; |
440 | } | |
441 | if (!*str) | |
442 | break; | |
443 | fprintf(out, "\\%c", *str++); | |
444 | } | |
445 | fputs("\"\n", out); | |
446 | } | |
447 | ||
0dce6310 | 448 | static void conf_write_symbol(struct symbol *sym, FILE *out, bool write_no) |
49192f26 SR |
449 | { |
450 | const char *str; | |
451 | ||
0dce6310 | 452 | switch (sym->type) { |
49192f26 SR |
453 | case S_BOOLEAN: |
454 | case S_TRISTATE: | |
455 | switch (sym_get_tristate_value(sym)) { | |
456 | case no: | |
457 | if (write_no) | |
ffb5957b AL |
458 | fprintf(out, "# %s%s is not set\n", |
459 | CONFIG_, sym->name); | |
49192f26 SR |
460 | break; |
461 | case mod: | |
ffb5957b | 462 | fprintf(out, "%s%s=m\n", CONFIG_, sym->name); |
49192f26 SR |
463 | break; |
464 | case yes: | |
ffb5957b | 465 | fprintf(out, "%s%s=y\n", CONFIG_, sym->name); |
49192f26 SR |
466 | break; |
467 | } | |
468 | break; | |
469 | case S_STRING: | |
470 | conf_write_string(false, sym->name, sym_get_string_value(sym), out); | |
471 | break; | |
472 | case S_HEX: | |
473 | case S_INT: | |
474 | str = sym_get_string_value(sym); | |
ffb5957b | 475 | fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str); |
49192f26 SR |
476 | break; |
477 | case S_OTHER: | |
478 | case S_UNKNOWN: | |
479 | break; | |
480 | } | |
481 | } | |
482 | ||
7cf3d73b SR |
483 | /* |
484 | * Write out a minimal config. | |
485 | * All values that has default values are skipped as this is redundant. | |
486 | */ | |
487 | int conf_write_defconfig(const char *filename) | |
488 | { | |
489 | struct symbol *sym; | |
490 | struct menu *menu; | |
491 | FILE *out; | |
492 | ||
493 | out = fopen(filename, "w"); | |
494 | if (!out) | |
495 | return 1; | |
496 | ||
497 | sym_clear_all_valid(); | |
498 | ||
499 | /* Traverse all menus to find all relevant symbols */ | |
500 | menu = rootmenu.list; | |
501 | ||
502 | while (menu != NULL) | |
503 | { | |
504 | sym = menu->sym; | |
505 | if (sym == NULL) { | |
506 | if (!menu_is_visible(menu)) | |
507 | goto next_menu; | |
508 | } else if (!sym_is_choice(sym)) { | |
509 | sym_calc_value(sym); | |
510 | if (!(sym->flags & SYMBOL_WRITE)) | |
511 | goto next_menu; | |
512 | sym->flags &= ~SYMBOL_WRITE; | |
513 | /* If we cannot change the symbol - skip */ | |
514 | if (!sym_is_changable(sym)) | |
515 | goto next_menu; | |
516 | /* If symbol equals to default value - skip */ | |
517 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
518 | goto next_menu; | |
519 | ||
520 | /* | |
521 | * If symbol is a choice value and equals to the | |
522 | * default for a choice - skip. | |
84062dd3 SR |
523 | * But only if value is bool and equal to "y" and |
524 | * choice is not "optional". | |
525 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
526 | */ |
527 | if (sym_is_choice_value(sym)) { | |
528 | struct symbol *cs; | |
529 | struct symbol *ds; | |
530 | ||
531 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
532 | ds = sym_choice_default(cs); | |
84062dd3 | 533 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
534 | if ((sym->type == S_BOOLEAN) && |
535 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
536 | goto next_menu; |
537 | } | |
538 | } | |
0dce6310 | 539 | conf_write_symbol(sym, out, true); |
7cf3d73b SR |
540 | } |
541 | next_menu: | |
542 | if (menu->list != NULL) { | |
543 | menu = menu->list; | |
544 | } | |
545 | else if (menu->next != NULL) { | |
546 | menu = menu->next; | |
547 | } else { | |
548 | while ((menu = menu->parent)) { | |
549 | if (menu->next != NULL) { | |
550 | menu = menu->next; | |
551 | break; | |
552 | } | |
553 | } | |
554 | } | |
555 | } | |
556 | fclose(out); | |
557 | return 0; | |
558 | } | |
559 | ||
1da177e4 LT |
560 | int conf_write(const char *name) |
561 | { | |
c955ccaf | 562 | FILE *out; |
1da177e4 LT |
563 | struct symbol *sym; |
564 | struct menu *menu; | |
565 | const char *basename; | |
1da177e4 | 566 | const char *str; |
1408b15b | 567 | char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; |
1da177e4 LT |
568 | char *env; |
569 | ||
570 | dirname[0] = 0; | |
571 | if (name && name[0]) { | |
572 | struct stat st; | |
573 | char *slash; | |
574 | ||
575 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
576 | strcpy(dirname, name); | |
577 | strcat(dirname, "/"); | |
14cdd3c4 | 578 | basename = conf_get_configname(); |
1da177e4 LT |
579 | } else if ((slash = strrchr(name, '/'))) { |
580 | int size = slash - name + 1; | |
581 | memcpy(dirname, name, size); | |
582 | dirname[size] = 0; | |
583 | if (slash[1]) | |
584 | basename = slash + 1; | |
585 | else | |
14cdd3c4 | 586 | basename = conf_get_configname(); |
1da177e4 LT |
587 | } else |
588 | basename = name; | |
589 | } else | |
14cdd3c4 | 590 | basename = conf_get_configname(); |
1da177e4 | 591 | |
14cdd3c4 RZ |
592 | sprintf(newname, "%s%s", dirname, basename); |
593 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
594 | if (!env || !*env) { | |
595 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
596 | out = fopen(tmpname, "w"); | |
597 | } else { | |
598 | *tmpname = 0; | |
599 | out = fopen(newname, "w"); | |
600 | } | |
1da177e4 LT |
601 | if (!out) |
602 | return 1; | |
14cdd3c4 | 603 | |
3b9fa093 ACM |
604 | fprintf(out, _("#\n" |
605 | "# Automatically generated make config: don't edit\n" | |
0954828f | 606 | "# %s\n" |
3b9fa093 | 607 | "#\n"), |
bdebd489 | 608 | rootmenu.prompt->text); |
1da177e4 | 609 | |
b3214293 | 610 | if (!conf_get_changed()) |
1da177e4 LT |
611 | sym_clear_all_valid(); |
612 | ||
613 | menu = rootmenu.list; | |
614 | while (menu) { | |
615 | sym = menu->sym; | |
616 | if (!sym) { | |
617 | if (!menu_is_visible(menu)) | |
618 | goto next; | |
619 | str = menu_get_prompt(menu); | |
620 | fprintf(out, "\n" | |
621 | "#\n" | |
622 | "# %s\n" | |
623 | "#\n", str); | |
1da177e4 LT |
624 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
625 | sym_calc_value(sym); | |
626 | if (!(sym->flags & SYMBOL_WRITE)) | |
627 | goto next; | |
628 | sym->flags &= ~SYMBOL_WRITE; | |
49192f26 | 629 | /* Write config symbol to file */ |
0dce6310 | 630 | conf_write_symbol(sym, out, true); |
1da177e4 LT |
631 | } |
632 | ||
49192f26 | 633 | next: |
1da177e4 LT |
634 | if (menu->list) { |
635 | menu = menu->list; | |
636 | continue; | |
637 | } | |
638 | if (menu->next) | |
639 | menu = menu->next; | |
640 | else while ((menu = menu->parent)) { | |
641 | if (menu->next) { | |
642 | menu = menu->next; | |
643 | break; | |
644 | } | |
645 | } | |
646 | } | |
647 | fclose(out); | |
14cdd3c4 RZ |
648 | |
649 | if (*tmpname) { | |
9a3d0fe8 | 650 | strcat(dirname, basename); |
14cdd3c4 RZ |
651 | strcat(dirname, ".old"); |
652 | rename(newname, dirname); | |
653 | if (rename(tmpname, newname)) | |
654 | return 1; | |
1da177e4 | 655 | } |
1da177e4 | 656 | |
42368c37 | 657 | conf_message(_("configuration written to %s"), newname); |
ddc97cac | 658 | |
bfc10001 | 659 | sym_set_change_count(0); |
1da177e4 LT |
660 | |
661 | return 0; | |
662 | } | |
c955ccaf | 663 | |
4356f489 | 664 | static int conf_split_config(void) |
2e3646e5 | 665 | { |
12122f62 | 666 | const char *name; |
1408b15b | 667 | char path[PATH_MAX+1]; |
2e3646e5 RZ |
668 | char *s, *d, c; |
669 | struct symbol *sym; | |
670 | struct stat sb; | |
671 | int res, i, fd; | |
672 | ||
12122f62 | 673 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
674 | conf_read_simple(name, S_DEF_AUTO); |
675 | ||
676 | if (chdir("include/config")) | |
677 | return 1; | |
678 | ||
679 | res = 0; | |
680 | for_all_symbols(i, sym) { | |
681 | sym_calc_value(sym); | |
682 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
683 | continue; | |
684 | if (sym->flags & SYMBOL_WRITE) { | |
685 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
686 | /* | |
687 | * symbol has old and new value, | |
688 | * so compare them... | |
689 | */ | |
690 | switch (sym->type) { | |
691 | case S_BOOLEAN: | |
692 | case S_TRISTATE: | |
693 | if (sym_get_tristate_value(sym) == | |
694 | sym->def[S_DEF_AUTO].tri) | |
695 | continue; | |
696 | break; | |
697 | case S_STRING: | |
698 | case S_HEX: | |
699 | case S_INT: | |
700 | if (!strcmp(sym_get_string_value(sym), | |
701 | sym->def[S_DEF_AUTO].val)) | |
702 | continue; | |
703 | break; | |
704 | default: | |
705 | break; | |
706 | } | |
707 | } else { | |
708 | /* | |
709 | * If there is no old value, only 'no' (unset) | |
710 | * is allowed as new value. | |
711 | */ | |
712 | switch (sym->type) { | |
713 | case S_BOOLEAN: | |
714 | case S_TRISTATE: | |
715 | if (sym_get_tristate_value(sym) == no) | |
716 | continue; | |
717 | break; | |
718 | default: | |
719 | break; | |
720 | } | |
721 | } | |
722 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
723 | /* There is neither an old nor a new value. */ | |
724 | continue; | |
725 | /* else | |
726 | * There is an old value, but no new value ('no' (unset) | |
727 | * isn't saved in auto.conf, so the old value is always | |
728 | * different from 'no'). | |
729 | */ | |
730 | ||
731 | /* Replace all '_' and append ".h" */ | |
732 | s = sym->name; | |
733 | d = path; | |
734 | while ((c = *s++)) { | |
735 | c = tolower(c); | |
736 | *d++ = (c == '_') ? '/' : c; | |
737 | } | |
738 | strcpy(d, ".h"); | |
739 | ||
740 | /* Assume directory path already exists. */ | |
741 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
742 | if (fd == -1) { | |
743 | if (errno != ENOENT) { | |
744 | res = 1; | |
745 | break; | |
746 | } | |
747 | /* | |
748 | * Create directory components, | |
749 | * unless they exist already. | |
750 | */ | |
751 | d = path; | |
752 | while ((d = strchr(d, '/'))) { | |
753 | *d = 0; | |
754 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
755 | res = 1; | |
756 | goto out; | |
757 | } | |
758 | *d++ = '/'; | |
759 | } | |
760 | /* Try it again. */ | |
761 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
762 | if (fd == -1) { | |
763 | res = 1; | |
764 | break; | |
765 | } | |
766 | } | |
767 | close(fd); | |
768 | } | |
769 | out: | |
770 | if (chdir("../..")) | |
771 | return 1; | |
772 | ||
773 | return res; | |
774 | } | |
775 | ||
c955ccaf RZ |
776 | int conf_write_autoconf(void) |
777 | { | |
778 | struct symbol *sym; | |
779 | const char *str; | |
12122f62 | 780 | const char *name; |
bc081dd6 | 781 | FILE *out, *tristate, *out_h; |
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 | ||
c955ccaf RZ |
808 | fprintf(out, "#\n" |
809 | "# Automatically generated make config: don't edit\n" | |
0954828f | 810 | "# %s\n" |
c955ccaf | 811 | "#\n", |
c33724a4 | 812 | rootmenu.prompt->text); |
bc081dd6 MM |
813 | fprintf(tristate, "#\n" |
814 | "# Automatically generated - do not edit\n" | |
815 | "\n"); | |
c955ccaf RZ |
816 | fprintf(out_h, "/*\n" |
817 | " * Automatically generated C config: don't edit\n" | |
0954828f | 818 | " * %s\n" |
6e71fabe | 819 | " */\n", |
c33724a4 | 820 | rootmenu.prompt->text); |
c955ccaf | 821 | |
c955ccaf RZ |
822 | for_all_symbols(i, sym) { |
823 | sym_calc_value(sym); | |
824 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) | |
825 | continue; | |
49192f26 SR |
826 | |
827 | /* write symbol to config file */ | |
0dce6310 | 828 | conf_write_symbol(sym, out, false); |
49192f26 SR |
829 | |
830 | /* update autoconf and tristate files */ | |
c955ccaf RZ |
831 | switch (sym->type) { |
832 | case S_BOOLEAN: | |
833 | case S_TRISTATE: | |
834 | switch (sym_get_tristate_value(sym)) { | |
835 | case no: | |
836 | break; | |
837 | case mod: | |
ffb5957b AL |
838 | fprintf(tristate, "%s%s=M\n", |
839 | CONFIG_, sym->name); | |
840 | fprintf(out_h, "#define %s%s_MODULE 1\n", | |
841 | CONFIG_, sym->name); | |
c955ccaf RZ |
842 | break; |
843 | case yes: | |
bc081dd6 | 844 | if (sym->type == S_TRISTATE) |
ffb5957b AL |
845 | fprintf(tristate,"%s%s=Y\n", |
846 | CONFIG_, sym->name); | |
847 | fprintf(out_h, "#define %s%s 1\n", | |
848 | CONFIG_, sym->name); | |
c955ccaf RZ |
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')) { | |
ffb5957b AL |
858 | fprintf(out_h, "#define %s%s 0x%s\n", |
859 | CONFIG_, sym->name, str); | |
c955ccaf RZ |
860 | break; |
861 | } | |
862 | case S_INT: | |
863 | str = sym_get_string_value(sym); | |
ffb5957b AL |
864 | fprintf(out_h, "#define %s%s %s\n", |
865 | CONFIG_, sym->name, str); | |
c955ccaf RZ |
866 | break; |
867 | default: | |
868 | break; | |
869 | } | |
870 | } | |
871 | fclose(out); | |
bc081dd6 | 872 | fclose(tristate); |
c955ccaf RZ |
873 | fclose(out_h); |
874 | ||
875 | name = getenv("KCONFIG_AUTOHEADER"); | |
876 | if (!name) | |
264a2683 | 877 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
878 | if (rename(".tmpconfig.h", name)) |
879 | return 1; | |
bc081dd6 MM |
880 | name = getenv("KCONFIG_TRISTATE"); |
881 | if (!name) | |
882 | name = "include/config/tristate.conf"; | |
883 | if (rename(".tmpconfig_tristate", name)) | |
884 | return 1; | |
12122f62 | 885 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
886 | /* |
887 | * This must be the last step, kbuild has a dependency on auto.conf | |
888 | * and this marks the successful completion of the previous steps. | |
889 | */ | |
890 | if (rename(".tmpconfig", name)) | |
891 | return 1; | |
892 | ||
893 | return 0; | |
894 | } | |
b3214293 | 895 | |
bfc10001 | 896 | static int sym_change_count; |
3b354c55 | 897 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
898 | |
899 | void sym_set_change_count(int count) | |
900 | { | |
3b354c55 | 901 | int _sym_change_count = sym_change_count; |
bfc10001 | 902 | sym_change_count = count; |
3b354c55 KW |
903 | if (conf_changed_callback && |
904 | (bool)_sym_change_count != (bool)count) | |
905 | conf_changed_callback(); | |
bfc10001 KW |
906 | } |
907 | ||
908 | void sym_add_change_count(int count) | |
909 | { | |
3b354c55 | 910 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
911 | } |
912 | ||
b3214293 KW |
913 | bool conf_get_changed(void) |
914 | { | |
915 | return sym_change_count; | |
916 | } | |
3b354c55 KW |
917 | |
918 | void conf_set_changed_callback(void (*fn)(void)) | |
919 | { | |
920 | conf_changed_callback = fn; | |
921 | } | |
dc7862e5 | 922 | |
a64b44ea SR |
923 | static void randomize_choice_values(struct symbol *csym) |
924 | { | |
925 | struct property *prop; | |
926 | struct symbol *sym; | |
927 | struct expr *e; | |
928 | int cnt, def; | |
dc7862e5 | 929 | |
a64b44ea | 930 | /* |
579fb8e7 | 931 | * If choice is mod then we may have more items selected |
a64b44ea SR |
932 | * and if no then no-one. |
933 | * In both cases stop. | |
934 | */ | |
935 | if (csym->curr.tri != yes) | |
936 | return; | |
937 | ||
938 | prop = sym_get_choice_prop(csym); | |
939 | ||
940 | /* count entries in choice block */ | |
941 | cnt = 0; | |
942 | expr_list_for_each_sym(prop->expr, e, sym) | |
943 | cnt++; | |
944 | ||
945 | /* | |
946 | * find a random value and set it to yes, | |
947 | * set the rest to no so we have only one set | |
948 | */ | |
949 | def = (rand() % cnt); | |
950 | ||
951 | cnt = 0; | |
952 | expr_list_for_each_sym(prop->expr, e, sym) { | |
953 | if (def == cnt++) { | |
954 | sym->def[S_DEF_USER].tri = yes; | |
955 | csym->def[S_DEF_USER].val = sym; | |
956 | } | |
957 | else { | |
958 | sym->def[S_DEF_USER].tri = no; | |
959 | } | |
960 | } | |
961 | csym->flags |= SYMBOL_DEF_USER; | |
962 | /* clear VALID to get value calculated */ | |
963 | csym->flags &= ~(SYMBOL_VALID); | |
964 | } | |
965 | ||
966 | static void set_all_choice_values(struct symbol *csym) | |
dc7862e5 | 967 | { |
dc7862e5 | 968 | struct property *prop; |
a64b44ea | 969 | struct symbol *sym; |
dc7862e5 | 970 | struct expr *e; |
a64b44ea SR |
971 | |
972 | prop = sym_get_choice_prop(csym); | |
973 | ||
974 | /* | |
975 | * Set all non-assinged choice values to no | |
976 | */ | |
977 | expr_list_for_each_sym(prop->expr, e, sym) { | |
978 | if (!sym_has_value(sym)) | |
979 | sym->def[S_DEF_USER].tri = no; | |
980 | } | |
981 | csym->flags |= SYMBOL_DEF_USER; | |
982 | /* clear VALID to get value calculated */ | |
983 | csym->flags &= ~(SYMBOL_VALID); | |
984 | } | |
985 | ||
986 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
987 | { | |
988 | struct symbol *sym, *csym; | |
989 | int i, cnt; | |
dc7862e5 RZ |
990 | |
991 | for_all_symbols(i, sym) { | |
992 | if (sym_has_value(sym)) | |
993 | continue; | |
994 | switch (sym_get_type(sym)) { | |
995 | case S_BOOLEAN: | |
996 | case S_TRISTATE: | |
997 | switch (mode) { | |
998 | case def_yes: | |
999 | sym->def[S_DEF_USER].tri = yes; | |
1000 | break; | |
1001 | case def_mod: | |
1002 | sym->def[S_DEF_USER].tri = mod; | |
1003 | break; | |
1004 | case def_no: | |
1005 | sym->def[S_DEF_USER].tri = no; | |
1006 | break; | |
1007 | case def_random: | |
1244b41d PK |
1008 | cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2; |
1009 | sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); | |
dc7862e5 RZ |
1010 | break; |
1011 | default: | |
1012 | continue; | |
1013 | } | |
184832c9 | 1014 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1015 | sym->flags |= SYMBOL_DEF_USER; |
1016 | break; | |
1017 | default: | |
1018 | break; | |
1019 | } | |
1020 | ||
1021 | } | |
1022 | ||
ce97e13e | 1023 | sym_clear_all_valid(); |
dc7862e5 | 1024 | |
184832c9 SR |
1025 | /* |
1026 | * We have different type of choice blocks. | |
579fb8e7 | 1027 | * If curr.tri equals to mod then we can select several |
184832c9 SR |
1028 | * choice symbols in one block. |
1029 | * In this case we do nothing. | |
579fb8e7 | 1030 | * If curr.tri equals yes then only one symbol can be |
184832c9 SR |
1031 | * selected in a choice block and we set it to yes, |
1032 | * and the rest to no. | |
1033 | */ | |
dc7862e5 RZ |
1034 | for_all_symbols(i, csym) { |
1035 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1036 | continue; | |
1037 | ||
1038 | sym_calc_value(csym); | |
a64b44ea SR |
1039 | if (mode == def_random) |
1040 | randomize_choice_values(csym); | |
1041 | else | |
1042 | set_all_choice_values(csym); | |
dc7862e5 RZ |
1043 | } |
1044 | } |