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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> | |
3 | * Released under the terms of the GNU GPL v2.0. | |
4 | */ | |
5 | ||
6 | #include <sys/stat.h> | |
7 | #include <ctype.h> | |
94bedeca | 8 | #include <errno.h> |
2e3646e5 | 9 | #include <fcntl.h> |
1da177e4 LT |
10 | #include <stdio.h> |
11 | #include <stdlib.h> | |
12 | #include <string.h> | |
13 | #include <time.h> | |
14 | #include <unistd.h> | |
15 | ||
16 | #define LKC_DIRECT_LINK | |
17 | #include "lkc.h" | |
18 | ||
c1a0f5e3 RZ |
19 | static void conf_warning(const char *fmt, ...) |
20 | __attribute__ ((format (printf, 1, 2))); | |
21 | ||
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 | } | |
131 | case S_BOOLEAN: | |
132 | if (p[0] == 'y') { | |
133 | sym->def[def].tri = yes; | |
134 | sym->flags |= def_flags; | |
135 | break; | |
136 | } | |
137 | if (p[0] == 'n') { | |
138 | sym->def[def].tri = no; | |
139 | sym->flags |= def_flags; | |
140 | break; | |
141 | } | |
142 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
143 | break; | |
144 | case S_OTHER: | |
145 | if (*p != '"') { | |
146 | for (p2 = p; *p2 && !isspace(*p2); p2++) | |
147 | ; | |
148 | sym->type = S_STRING; | |
149 | goto done; | |
150 | } | |
151 | case S_STRING: | |
152 | if (*p++ != '"') | |
153 | break; | |
154 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { | |
155 | if (*p2 == '"') { | |
156 | *p2 = 0; | |
157 | break; | |
158 | } | |
159 | memmove(p2, p2 + 1, strlen(p2)); | |
160 | } | |
161 | if (!p2) { | |
162 | conf_warning("invalid string found"); | |
163 | return 1; | |
164 | } | |
165 | case S_INT: | |
166 | case S_HEX: | |
167 | done: | |
168 | if (sym_string_valid(sym, p)) { | |
169 | sym->def[def].val = strdup(p); | |
170 | sym->flags |= def_flags; | |
171 | } else { | |
172 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); | |
173 | return 1; | |
174 | } | |
175 | break; | |
176 | default: | |
177 | ; | |
178 | } | |
179 | return 0; | |
180 | } | |
181 | ||
669bfad9 | 182 | int conf_read_simple(const char *name, int def) |
1da177e4 LT |
183 | { |
184 | FILE *in = NULL; | |
185 | char line[1024]; | |
186 | char *p, *p2; | |
1da177e4 | 187 | struct symbol *sym; |
669bfad9 | 188 | int i, def_flags; |
1da177e4 LT |
189 | |
190 | if (name) { | |
191 | in = zconf_fopen(name); | |
192 | } else { | |
face4374 RZ |
193 | struct property *prop; |
194 | ||
14cdd3c4 | 195 | name = conf_get_configname(); |
ddc97cac RZ |
196 | in = zconf_fopen(name); |
197 | if (in) | |
198 | goto load; | |
bfc10001 | 199 | sym_add_change_count(1); |
ac1ffde1 UM |
200 | if (!sym_defconfig_list) { |
201 | if (modules_sym) | |
202 | sym_calc_value(modules_sym); | |
face4374 | 203 | return 1; |
ac1ffde1 | 204 | } |
face4374 RZ |
205 | |
206 | for_all_defaults(sym_defconfig_list, prop) { | |
207 | if (expr_calc_value(prop->visible.expr) == no || | |
208 | prop->expr->type != E_SYMBOL) | |
209 | continue; | |
210 | name = conf_expand_value(prop->expr->left.sym->name); | |
1da177e4 LT |
211 | in = zconf_fopen(name); |
212 | if (in) { | |
42368c37 MM |
213 | conf_message(_("using defaults found in %s"), |
214 | name); | |
ddc97cac | 215 | goto load; |
1da177e4 LT |
216 | } |
217 | } | |
218 | } | |
1da177e4 LT |
219 | if (!in) |
220 | return 1; | |
221 | ||
ddc97cac | 222 | load: |
c1a0f5e3 RZ |
223 | conf_filename = name; |
224 | conf_lineno = 0; | |
225 | conf_warnings = 0; | |
226 | conf_unsaved = 0; | |
227 | ||
669bfad9 | 228 | def_flags = SYMBOL_DEF << def; |
1da177e4 | 229 | for_all_symbols(i, sym) { |
669bfad9 RZ |
230 | sym->flags |= SYMBOL_CHANGED; |
231 | sym->flags &= ~(def_flags|SYMBOL_VALID); | |
c1a0f5e3 | 232 | if (sym_is_choice(sym)) |
669bfad9 | 233 | sym->flags |= def_flags; |
1da177e4 LT |
234 | switch (sym->type) { |
235 | case S_INT: | |
236 | case S_HEX: | |
237 | case S_STRING: | |
669bfad9 RZ |
238 | if (sym->def[def].val) |
239 | free(sym->def[def].val); | |
1da177e4 | 240 | default: |
669bfad9 RZ |
241 | sym->def[def].val = NULL; |
242 | sym->def[def].tri = no; | |
1da177e4 LT |
243 | } |
244 | } | |
245 | ||
246 | while (fgets(line, sizeof(line), in)) { | |
c1a0f5e3 | 247 | conf_lineno++; |
1da177e4 | 248 | sym = NULL; |
8baefd30 | 249 | if (line[0] == '#') { |
ffb5957b | 250 | if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) |
1da177e4 | 251 | continue; |
ffb5957b | 252 | p = strchr(line + 2 + strlen(CONFIG_), ' '); |
1da177e4 LT |
253 | if (!p) |
254 | continue; | |
255 | *p++ = 0; | |
256 | if (strncmp(p, "is not set", 10)) | |
257 | continue; | |
669bfad9 | 258 | if (def == S_DEF_USER) { |
ffb5957b | 259 | sym = sym_find(line + 2 + strlen(CONFIG_)); |
661b0680 | 260 | if (!sym) { |
261 | sym_add_change_count(1); | |
8bea7548 | 262 | goto setsym; |
661b0680 | 263 | } |
669bfad9 | 264 | } else { |
ffb5957b | 265 | sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); |
669bfad9 RZ |
266 | if (sym->type == S_UNKNOWN) |
267 | sym->type = S_BOOLEAN; | |
268 | } | |
269 | if (sym->flags & def_flags) { | |
d84876f9 | 270 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 LT |
271 | } |
272 | switch (sym->type) { | |
273 | case S_BOOLEAN: | |
274 | case S_TRISTATE: | |
669bfad9 RZ |
275 | sym->def[def].tri = no; |
276 | sym->flags |= def_flags; | |
1da177e4 LT |
277 | break; |
278 | default: | |
279 | ; | |
280 | } | |
ffb5957b AL |
281 | } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { |
282 | p = strchr(line + strlen(CONFIG_), '='); | |
1da177e4 LT |
283 | if (!p) |
284 | continue; | |
285 | *p++ = 0; | |
286 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
287 | if (p2) { |
288 | *p2-- = 0; | |
289 | if (*p2 == '\r') | |
290 | *p2 = 0; | |
291 | } | |
669bfad9 | 292 | if (def == S_DEF_USER) { |
ffb5957b | 293 | sym = sym_find(line + strlen(CONFIG_)); |
661b0680 | 294 | if (!sym) { |
295 | sym_add_change_count(1); | |
8bea7548 | 296 | goto setsym; |
661b0680 | 297 | } |
669bfad9 | 298 | } else { |
ffb5957b | 299 | sym = sym_lookup(line + strlen(CONFIG_), 0); |
669bfad9 RZ |
300 | if (sym->type == S_UNKNOWN) |
301 | sym->type = S_OTHER; | |
302 | } | |
303 | if (sym->flags & def_flags) { | |
d84876f9 | 304 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 305 | } |
9c900a9c SR |
306 | if (conf_set_sym_val(sym, def, def_flags, p)) |
307 | continue; | |
8baefd30 AL |
308 | } else { |
309 | if (line[0] != '\r' && line[0] != '\n') | |
310 | conf_warning("unexpected data"); | |
1da177e4 LT |
311 | continue; |
312 | } | |
8bea7548 | 313 | setsym: |
1da177e4 LT |
314 | if (sym && sym_is_choice_value(sym)) { |
315 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 316 | switch (sym->def[def].tri) { |
1da177e4 LT |
317 | case no: |
318 | break; | |
319 | case mod: | |
669bfad9 | 320 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 321 | conf_warning("%s creates inconsistent choice state", sym->name); |
669bfad9 | 322 | cs->flags &= ~def_flags; |
c1a0f5e3 | 323 | } |
1da177e4 LT |
324 | break; |
325 | case yes: | |
d84876f9 JE |
326 | if (cs->def[def].tri != no) |
327 | conf_warning("override: %s changes choice state", sym->name); | |
328 | cs->def[def].val = sym; | |
1da177e4 LT |
329 | break; |
330 | } | |
d6ee3576 | 331 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
332 | } |
333 | } | |
334 | fclose(in); | |
335 | ||
336 | if (modules_sym) | |
337 | sym_calc_value(modules_sym); | |
90389160 RZ |
338 | return 0; |
339 | } | |
340 | ||
341 | int conf_read(const char *name) | |
342 | { | |
7a962923 | 343 | struct symbol *sym, *choice_sym; |
90389160 RZ |
344 | struct property *prop; |
345 | struct expr *e; | |
669bfad9 | 346 | int i, flags; |
90389160 | 347 | |
bfc10001 | 348 | sym_set_change_count(0); |
ddc97cac | 349 | |
669bfad9 | 350 | if (conf_read_simple(name, S_DEF_USER)) |
90389160 RZ |
351 | return 1; |
352 | ||
1da177e4 LT |
353 | for_all_symbols(i, sym) { |
354 | sym_calc_value(sym); | |
c1a0f5e3 RZ |
355 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
356 | goto sym_ok; | |
357 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { | |
358 | /* check that calculated value agrees with saved value */ | |
359 | switch (sym->type) { | |
360 | case S_BOOLEAN: | |
361 | case S_TRISTATE: | |
0c1822e6 | 362 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
363 | break; |
364 | if (!sym_is_choice(sym)) | |
365 | goto sym_ok; | |
366 | default: | |
0c1822e6 | 367 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
c1a0f5e3 RZ |
368 | goto sym_ok; |
369 | break; | |
370 | } | |
371 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
372 | /* no previous value and not saved */ | |
373 | goto sym_ok; | |
374 | conf_unsaved++; | |
375 | /* maybe print value in verbose mode... */ | |
376 | sym_ok: | |
d8982ba1 RZ |
377 | if (!sym_is_choice(sym)) |
378 | continue; | |
379 | /* The choice symbol only has a set value (and thus is not new) | |
380 | * if all its visible childs have values. | |
381 | */ | |
382 | prop = sym_get_choice_prop(sym); | |
383 | flags = sym->flags; | |
7a962923 RZ |
384 | expr_list_for_each_sym(prop->expr, e, choice_sym) |
385 | if (choice_sym->visible != no) | |
386 | flags &= choice_sym->flags; | |
d8982ba1 RZ |
387 | sym->flags &= flags | ~SYMBOL_DEF_USER; |
388 | } | |
389 | ||
390 | for_all_symbols(i, sym) { | |
1da177e4 | 391 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
392 | /* Reset values of generates values, so they'll appear |
393 | * as new, if they should become visible, but that | |
394 | * doesn't quite work if the Kconfig and the saved | |
395 | * configuration disagree. | |
396 | */ | |
397 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 398 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
399 | switch (sym->type) { |
400 | case S_STRING: | |
401 | case S_INT: | |
402 | case S_HEX: | |
d8982ba1 RZ |
403 | /* Reset a string value if it's out of range */ |
404 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
405 | break; | |
406 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
407 | conf_unsaved++; | |
408 | break; | |
1da177e4 LT |
409 | default: |
410 | break; | |
411 | } | |
412 | } | |
1da177e4 LT |
413 | } |
414 | ||
bfc10001 | 415 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
416 | |
417 | return 0; | |
418 | } | |
419 | ||
49192f26 SR |
420 | /* Write a S_STRING */ |
421 | static void conf_write_string(bool headerfile, const char *name, | |
422 | const char *str, FILE *out) | |
423 | { | |
424 | int l; | |
425 | if (headerfile) | |
ffb5957b | 426 | fprintf(out, "#define %s%s \"", CONFIG_, name); |
49192f26 | 427 | else |
ffb5957b | 428 | fprintf(out, "%s%s=\"", CONFIG_, name); |
49192f26 SR |
429 | |
430 | while (1) { | |
431 | l = strcspn(str, "\"\\"); | |
432 | if (l) { | |
bf5e327a | 433 | xfwrite(str, l, 1, out); |
49192f26 SR |
434 | str += l; |
435 | } | |
436 | if (!*str) | |
437 | break; | |
438 | fprintf(out, "\\%c", *str++); | |
439 | } | |
440 | fputs("\"\n", out); | |
441 | } | |
442 | ||
0dce6310 | 443 | static void conf_write_symbol(struct symbol *sym, FILE *out, bool write_no) |
49192f26 SR |
444 | { |
445 | const char *str; | |
446 | ||
0dce6310 | 447 | switch (sym->type) { |
49192f26 SR |
448 | case S_BOOLEAN: |
449 | case S_TRISTATE: | |
450 | switch (sym_get_tristate_value(sym)) { | |
451 | case no: | |
452 | if (write_no) | |
ffb5957b AL |
453 | fprintf(out, "# %s%s is not set\n", |
454 | CONFIG_, sym->name); | |
49192f26 SR |
455 | break; |
456 | case mod: | |
ffb5957b | 457 | fprintf(out, "%s%s=m\n", CONFIG_, sym->name); |
49192f26 SR |
458 | break; |
459 | case yes: | |
ffb5957b | 460 | fprintf(out, "%s%s=y\n", CONFIG_, sym->name); |
49192f26 SR |
461 | break; |
462 | } | |
463 | break; | |
464 | case S_STRING: | |
465 | conf_write_string(false, sym->name, sym_get_string_value(sym), out); | |
466 | break; | |
467 | case S_HEX: | |
468 | case S_INT: | |
469 | str = sym_get_string_value(sym); | |
ffb5957b | 470 | fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str); |
49192f26 SR |
471 | break; |
472 | case S_OTHER: | |
473 | case S_UNKNOWN: | |
474 | break; | |
475 | } | |
476 | } | |
477 | ||
7cf3d73b SR |
478 | /* |
479 | * Write out a minimal config. | |
480 | * All values that has default values are skipped as this is redundant. | |
481 | */ | |
482 | int conf_write_defconfig(const char *filename) | |
483 | { | |
484 | struct symbol *sym; | |
485 | struct menu *menu; | |
486 | FILE *out; | |
487 | ||
488 | out = fopen(filename, "w"); | |
489 | if (!out) | |
490 | return 1; | |
491 | ||
492 | sym_clear_all_valid(); | |
493 | ||
494 | /* Traverse all menus to find all relevant symbols */ | |
495 | menu = rootmenu.list; | |
496 | ||
497 | while (menu != NULL) | |
498 | { | |
499 | sym = menu->sym; | |
500 | if (sym == NULL) { | |
501 | if (!menu_is_visible(menu)) | |
502 | goto next_menu; | |
503 | } else if (!sym_is_choice(sym)) { | |
504 | sym_calc_value(sym); | |
505 | if (!(sym->flags & SYMBOL_WRITE)) | |
506 | goto next_menu; | |
507 | sym->flags &= ~SYMBOL_WRITE; | |
508 | /* If we cannot change the symbol - skip */ | |
509 | if (!sym_is_changable(sym)) | |
510 | goto next_menu; | |
511 | /* If symbol equals to default value - skip */ | |
512 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
513 | goto next_menu; | |
514 | ||
515 | /* | |
516 | * If symbol is a choice value and equals to the | |
517 | * default for a choice - skip. | |
84062dd3 SR |
518 | * But only if value is bool and equal to "y" and |
519 | * choice is not "optional". | |
520 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
521 | */ |
522 | if (sym_is_choice_value(sym)) { | |
523 | struct symbol *cs; | |
524 | struct symbol *ds; | |
525 | ||
526 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
527 | ds = sym_choice_default(cs); | |
84062dd3 | 528 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
529 | if ((sym->type == S_BOOLEAN) && |
530 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
531 | goto next_menu; |
532 | } | |
533 | } | |
0dce6310 | 534 | conf_write_symbol(sym, out, true); |
7cf3d73b SR |
535 | } |
536 | next_menu: | |
537 | if (menu->list != NULL) { | |
538 | menu = menu->list; | |
539 | } | |
540 | else if (menu->next != NULL) { | |
541 | menu = menu->next; | |
542 | } else { | |
543 | while ((menu = menu->parent)) { | |
544 | if (menu->next != NULL) { | |
545 | menu = menu->next; | |
546 | break; | |
547 | } | |
548 | } | |
549 | } | |
550 | } | |
551 | fclose(out); | |
552 | return 0; | |
553 | } | |
554 | ||
1da177e4 LT |
555 | int conf_write(const char *name) |
556 | { | |
c955ccaf | 557 | FILE *out; |
1da177e4 LT |
558 | struct symbol *sym; |
559 | struct menu *menu; | |
560 | const char *basename; | |
1da177e4 | 561 | const char *str; |
1408b15b | 562 | char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; |
1da177e4 LT |
563 | char *env; |
564 | ||
565 | dirname[0] = 0; | |
566 | if (name && name[0]) { | |
567 | struct stat st; | |
568 | char *slash; | |
569 | ||
570 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
571 | strcpy(dirname, name); | |
572 | strcat(dirname, "/"); | |
14cdd3c4 | 573 | basename = conf_get_configname(); |
1da177e4 LT |
574 | } else if ((slash = strrchr(name, '/'))) { |
575 | int size = slash - name + 1; | |
576 | memcpy(dirname, name, size); | |
577 | dirname[size] = 0; | |
578 | if (slash[1]) | |
579 | basename = slash + 1; | |
580 | else | |
14cdd3c4 | 581 | basename = conf_get_configname(); |
1da177e4 LT |
582 | } else |
583 | basename = name; | |
584 | } else | |
14cdd3c4 | 585 | basename = conf_get_configname(); |
1da177e4 | 586 | |
14cdd3c4 RZ |
587 | sprintf(newname, "%s%s", dirname, basename); |
588 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
589 | if (!env || !*env) { | |
590 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
591 | out = fopen(tmpname, "w"); | |
592 | } else { | |
593 | *tmpname = 0; | |
594 | out = fopen(newname, "w"); | |
595 | } | |
1da177e4 LT |
596 | if (!out) |
597 | return 1; | |
14cdd3c4 | 598 | |
3b9fa093 ACM |
599 | fprintf(out, _("#\n" |
600 | "# Automatically generated make config: don't edit\n" | |
0954828f | 601 | "# %s\n" |
3b9fa093 | 602 | "#\n"), |
bdebd489 | 603 | rootmenu.prompt->text); |
1da177e4 | 604 | |
b3214293 | 605 | if (!conf_get_changed()) |
1da177e4 LT |
606 | sym_clear_all_valid(); |
607 | ||
608 | menu = rootmenu.list; | |
609 | while (menu) { | |
610 | sym = menu->sym; | |
611 | if (!sym) { | |
612 | if (!menu_is_visible(menu)) | |
613 | goto next; | |
614 | str = menu_get_prompt(menu); | |
615 | fprintf(out, "\n" | |
616 | "#\n" | |
617 | "# %s\n" | |
618 | "#\n", str); | |
1da177e4 LT |
619 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
620 | sym_calc_value(sym); | |
621 | if (!(sym->flags & SYMBOL_WRITE)) | |
622 | goto next; | |
623 | sym->flags &= ~SYMBOL_WRITE; | |
49192f26 | 624 | /* Write config symbol to file */ |
0dce6310 | 625 | conf_write_symbol(sym, out, true); |
1da177e4 LT |
626 | } |
627 | ||
49192f26 | 628 | next: |
1da177e4 LT |
629 | if (menu->list) { |
630 | menu = menu->list; | |
631 | continue; | |
632 | } | |
633 | if (menu->next) | |
634 | menu = menu->next; | |
635 | else while ((menu = menu->parent)) { | |
636 | if (menu->next) { | |
637 | menu = menu->next; | |
638 | break; | |
639 | } | |
640 | } | |
641 | } | |
642 | fclose(out); | |
14cdd3c4 RZ |
643 | |
644 | if (*tmpname) { | |
9a3d0fe8 | 645 | strcat(dirname, basename); |
14cdd3c4 RZ |
646 | strcat(dirname, ".old"); |
647 | rename(newname, dirname); | |
648 | if (rename(tmpname, newname)) | |
649 | return 1; | |
1da177e4 | 650 | } |
1da177e4 | 651 | |
42368c37 | 652 | conf_message(_("configuration written to %s"), newname); |
ddc97cac | 653 | |
bfc10001 | 654 | sym_set_change_count(0); |
1da177e4 LT |
655 | |
656 | return 0; | |
657 | } | |
c955ccaf | 658 | |
4356f489 | 659 | static int conf_split_config(void) |
2e3646e5 | 660 | { |
12122f62 | 661 | const char *name; |
1408b15b | 662 | char path[PATH_MAX+1]; |
2e3646e5 RZ |
663 | char *s, *d, c; |
664 | struct symbol *sym; | |
665 | struct stat sb; | |
666 | int res, i, fd; | |
667 | ||
12122f62 | 668 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
669 | conf_read_simple(name, S_DEF_AUTO); |
670 | ||
671 | if (chdir("include/config")) | |
672 | return 1; | |
673 | ||
674 | res = 0; | |
675 | for_all_symbols(i, sym) { | |
676 | sym_calc_value(sym); | |
677 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
678 | continue; | |
679 | if (sym->flags & SYMBOL_WRITE) { | |
680 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
681 | /* | |
682 | * symbol has old and new value, | |
683 | * so compare them... | |
684 | */ | |
685 | switch (sym->type) { | |
686 | case S_BOOLEAN: | |
687 | case S_TRISTATE: | |
688 | if (sym_get_tristate_value(sym) == | |
689 | sym->def[S_DEF_AUTO].tri) | |
690 | continue; | |
691 | break; | |
692 | case S_STRING: | |
693 | case S_HEX: | |
694 | case S_INT: | |
695 | if (!strcmp(sym_get_string_value(sym), | |
696 | sym->def[S_DEF_AUTO].val)) | |
697 | continue; | |
698 | break; | |
699 | default: | |
700 | break; | |
701 | } | |
702 | } else { | |
703 | /* | |
704 | * If there is no old value, only 'no' (unset) | |
705 | * is allowed as new value. | |
706 | */ | |
707 | switch (sym->type) { | |
708 | case S_BOOLEAN: | |
709 | case S_TRISTATE: | |
710 | if (sym_get_tristate_value(sym) == no) | |
711 | continue; | |
712 | break; | |
713 | default: | |
714 | break; | |
715 | } | |
716 | } | |
717 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
718 | /* There is neither an old nor a new value. */ | |
719 | continue; | |
720 | /* else | |
721 | * There is an old value, but no new value ('no' (unset) | |
722 | * isn't saved in auto.conf, so the old value is always | |
723 | * different from 'no'). | |
724 | */ | |
725 | ||
726 | /* Replace all '_' and append ".h" */ | |
727 | s = sym->name; | |
728 | d = path; | |
729 | while ((c = *s++)) { | |
730 | c = tolower(c); | |
731 | *d++ = (c == '_') ? '/' : c; | |
732 | } | |
733 | strcpy(d, ".h"); | |
734 | ||
735 | /* Assume directory path already exists. */ | |
736 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
737 | if (fd == -1) { | |
738 | if (errno != ENOENT) { | |
739 | res = 1; | |
740 | break; | |
741 | } | |
742 | /* | |
743 | * Create directory components, | |
744 | * unless they exist already. | |
745 | */ | |
746 | d = path; | |
747 | while ((d = strchr(d, '/'))) { | |
748 | *d = 0; | |
749 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
750 | res = 1; | |
751 | goto out; | |
752 | } | |
753 | *d++ = '/'; | |
754 | } | |
755 | /* Try it again. */ | |
756 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
757 | if (fd == -1) { | |
758 | res = 1; | |
759 | break; | |
760 | } | |
761 | } | |
762 | close(fd); | |
763 | } | |
764 | out: | |
765 | if (chdir("../..")) | |
766 | return 1; | |
767 | ||
768 | return res; | |
769 | } | |
770 | ||
c955ccaf RZ |
771 | int conf_write_autoconf(void) |
772 | { | |
773 | struct symbol *sym; | |
774 | const char *str; | |
12122f62 | 775 | const char *name; |
bc081dd6 | 776 | FILE *out, *tristate, *out_h; |
49192f26 | 777 | int i; |
c955ccaf | 778 | |
2e3646e5 RZ |
779 | sym_clear_all_valid(); |
780 | ||
c955ccaf RZ |
781 | file_write_dep("include/config/auto.conf.cmd"); |
782 | ||
2e3646e5 RZ |
783 | if (conf_split_config()) |
784 | return 1; | |
785 | ||
c955ccaf RZ |
786 | out = fopen(".tmpconfig", "w"); |
787 | if (!out) | |
788 | return 1; | |
789 | ||
bc081dd6 MM |
790 | tristate = fopen(".tmpconfig_tristate", "w"); |
791 | if (!tristate) { | |
792 | fclose(out); | |
793 | return 1; | |
794 | } | |
795 | ||
c955ccaf RZ |
796 | out_h = fopen(".tmpconfig.h", "w"); |
797 | if (!out_h) { | |
798 | fclose(out); | |
bc081dd6 | 799 | fclose(tristate); |
c955ccaf RZ |
800 | return 1; |
801 | } | |
802 | ||
c955ccaf RZ |
803 | fprintf(out, "#\n" |
804 | "# Automatically generated make config: don't edit\n" | |
0954828f | 805 | "# %s\n" |
c955ccaf | 806 | "#\n", |
c33724a4 | 807 | rootmenu.prompt->text); |
bc081dd6 MM |
808 | fprintf(tristate, "#\n" |
809 | "# Automatically generated - do not edit\n" | |
810 | "\n"); | |
c955ccaf RZ |
811 | fprintf(out_h, "/*\n" |
812 | " * Automatically generated C config: don't edit\n" | |
0954828f | 813 | " * %s\n" |
6e71fabe | 814 | " */\n", |
c33724a4 | 815 | rootmenu.prompt->text); |
c955ccaf | 816 | |
c955ccaf RZ |
817 | for_all_symbols(i, sym) { |
818 | sym_calc_value(sym); | |
819 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) | |
820 | continue; | |
49192f26 SR |
821 | |
822 | /* write symbol to config file */ | |
0dce6310 | 823 | conf_write_symbol(sym, out, false); |
49192f26 SR |
824 | |
825 | /* update autoconf and tristate files */ | |
c955ccaf RZ |
826 | switch (sym->type) { |
827 | case S_BOOLEAN: | |
828 | case S_TRISTATE: | |
829 | switch (sym_get_tristate_value(sym)) { | |
830 | case no: | |
831 | break; | |
832 | case mod: | |
ffb5957b AL |
833 | fprintf(tristate, "%s%s=M\n", |
834 | CONFIG_, sym->name); | |
835 | fprintf(out_h, "#define %s%s_MODULE 1\n", | |
836 | CONFIG_, sym->name); | |
c955ccaf RZ |
837 | break; |
838 | case yes: | |
bc081dd6 | 839 | if (sym->type == S_TRISTATE) |
ffb5957b AL |
840 | fprintf(tristate,"%s%s=Y\n", |
841 | CONFIG_, sym->name); | |
842 | fprintf(out_h, "#define %s%s 1\n", | |
843 | CONFIG_, sym->name); | |
c955ccaf RZ |
844 | break; |
845 | } | |
846 | break; | |
847 | case S_STRING: | |
49192f26 | 848 | conf_write_string(true, sym->name, sym_get_string_value(sym), out_h); |
c955ccaf RZ |
849 | break; |
850 | case S_HEX: | |
851 | str = sym_get_string_value(sym); | |
852 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { | |
ffb5957b AL |
853 | fprintf(out_h, "#define %s%s 0x%s\n", |
854 | CONFIG_, sym->name, str); | |
c955ccaf RZ |
855 | break; |
856 | } | |
857 | case S_INT: | |
858 | str = sym_get_string_value(sym); | |
ffb5957b AL |
859 | fprintf(out_h, "#define %s%s %s\n", |
860 | CONFIG_, sym->name, str); | |
c955ccaf RZ |
861 | break; |
862 | default: | |
863 | break; | |
864 | } | |
865 | } | |
866 | fclose(out); | |
bc081dd6 | 867 | fclose(tristate); |
c955ccaf RZ |
868 | fclose(out_h); |
869 | ||
870 | name = getenv("KCONFIG_AUTOHEADER"); | |
871 | if (!name) | |
264a2683 | 872 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
873 | if (rename(".tmpconfig.h", name)) |
874 | return 1; | |
bc081dd6 MM |
875 | name = getenv("KCONFIG_TRISTATE"); |
876 | if (!name) | |
877 | name = "include/config/tristate.conf"; | |
878 | if (rename(".tmpconfig_tristate", name)) | |
879 | return 1; | |
12122f62 | 880 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
881 | /* |
882 | * This must be the last step, kbuild has a dependency on auto.conf | |
883 | * and this marks the successful completion of the previous steps. | |
884 | */ | |
885 | if (rename(".tmpconfig", name)) | |
886 | return 1; | |
887 | ||
888 | return 0; | |
889 | } | |
b3214293 | 890 | |
bfc10001 | 891 | static int sym_change_count; |
3b354c55 | 892 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
893 | |
894 | void sym_set_change_count(int count) | |
895 | { | |
3b354c55 | 896 | int _sym_change_count = sym_change_count; |
bfc10001 | 897 | sym_change_count = count; |
3b354c55 KW |
898 | if (conf_changed_callback && |
899 | (bool)_sym_change_count != (bool)count) | |
900 | conf_changed_callback(); | |
bfc10001 KW |
901 | } |
902 | ||
903 | void sym_add_change_count(int count) | |
904 | { | |
3b354c55 | 905 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
906 | } |
907 | ||
b3214293 KW |
908 | bool conf_get_changed(void) |
909 | { | |
910 | return sym_change_count; | |
911 | } | |
3b354c55 KW |
912 | |
913 | void conf_set_changed_callback(void (*fn)(void)) | |
914 | { | |
915 | conf_changed_callback = fn; | |
916 | } | |
dc7862e5 | 917 | |
a64b44ea SR |
918 | static void randomize_choice_values(struct symbol *csym) |
919 | { | |
920 | struct property *prop; | |
921 | struct symbol *sym; | |
922 | struct expr *e; | |
923 | int cnt, def; | |
dc7862e5 | 924 | |
a64b44ea | 925 | /* |
579fb8e7 | 926 | * If choice is mod then we may have more items selected |
a64b44ea SR |
927 | * and if no then no-one. |
928 | * In both cases stop. | |
929 | */ | |
930 | if (csym->curr.tri != yes) | |
931 | return; | |
932 | ||
933 | prop = sym_get_choice_prop(csym); | |
934 | ||
935 | /* count entries in choice block */ | |
936 | cnt = 0; | |
937 | expr_list_for_each_sym(prop->expr, e, sym) | |
938 | cnt++; | |
939 | ||
940 | /* | |
941 | * find a random value and set it to yes, | |
942 | * set the rest to no so we have only one set | |
943 | */ | |
944 | def = (rand() % cnt); | |
945 | ||
946 | cnt = 0; | |
947 | expr_list_for_each_sym(prop->expr, e, sym) { | |
948 | if (def == cnt++) { | |
949 | sym->def[S_DEF_USER].tri = yes; | |
950 | csym->def[S_DEF_USER].val = sym; | |
951 | } | |
952 | else { | |
953 | sym->def[S_DEF_USER].tri = no; | |
954 | } | |
955 | } | |
956 | csym->flags |= SYMBOL_DEF_USER; | |
957 | /* clear VALID to get value calculated */ | |
958 | csym->flags &= ~(SYMBOL_VALID); | |
959 | } | |
960 | ||
961 | static void set_all_choice_values(struct symbol *csym) | |
dc7862e5 | 962 | { |
dc7862e5 | 963 | struct property *prop; |
a64b44ea | 964 | struct symbol *sym; |
dc7862e5 | 965 | struct expr *e; |
a64b44ea SR |
966 | |
967 | prop = sym_get_choice_prop(csym); | |
968 | ||
969 | /* | |
970 | * Set all non-assinged choice values to no | |
971 | */ | |
972 | expr_list_for_each_sym(prop->expr, e, sym) { | |
973 | if (!sym_has_value(sym)) | |
974 | sym->def[S_DEF_USER].tri = no; | |
975 | } | |
976 | csym->flags |= SYMBOL_DEF_USER; | |
977 | /* clear VALID to get value calculated */ | |
978 | csym->flags &= ~(SYMBOL_VALID); | |
979 | } | |
980 | ||
981 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
982 | { | |
983 | struct symbol *sym, *csym; | |
984 | int i, cnt; | |
dc7862e5 RZ |
985 | |
986 | for_all_symbols(i, sym) { | |
987 | if (sym_has_value(sym)) | |
988 | continue; | |
989 | switch (sym_get_type(sym)) { | |
990 | case S_BOOLEAN: | |
991 | case S_TRISTATE: | |
992 | switch (mode) { | |
993 | case def_yes: | |
994 | sym->def[S_DEF_USER].tri = yes; | |
995 | break; | |
996 | case def_mod: | |
997 | sym->def[S_DEF_USER].tri = mod; | |
998 | break; | |
999 | case def_no: | |
1000 | sym->def[S_DEF_USER].tri = no; | |
1001 | break; | |
1002 | case def_random: | |
1244b41d PK |
1003 | cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2; |
1004 | sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); | |
dc7862e5 RZ |
1005 | break; |
1006 | default: | |
1007 | continue; | |
1008 | } | |
184832c9 | 1009 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1010 | sym->flags |= SYMBOL_DEF_USER; |
1011 | break; | |
1012 | default: | |
1013 | break; | |
1014 | } | |
1015 | ||
1016 | } | |
1017 | ||
ce97e13e | 1018 | sym_clear_all_valid(); |
dc7862e5 | 1019 | |
184832c9 SR |
1020 | /* |
1021 | * We have different type of choice blocks. | |
579fb8e7 | 1022 | * If curr.tri equals to mod then we can select several |
184832c9 SR |
1023 | * choice symbols in one block. |
1024 | * In this case we do nothing. | |
579fb8e7 | 1025 | * If curr.tri equals yes then only one symbol can be |
184832c9 SR |
1026 | * selected in a choice block and we set it to yes, |
1027 | * and the rest to no. | |
1028 | */ | |
dc7862e5 RZ |
1029 | for_all_symbols(i, csym) { |
1030 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1031 | continue; | |
1032 | ||
1033 | sym_calc_value(csym); | |
a64b44ea SR |
1034 | if (mode == def_random) |
1035 | randomize_choice_values(csym); | |
1036 | else | |
1037 | set_all_choice_values(csym); | |
dc7862e5 RZ |
1038 | } |
1039 | } |