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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> |
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 | ||
e54e692b AL |
425 | /* |
426 | * Kconfig configuration printer | |
427 | * | |
428 | * This printer is used when generating the resulting configuration after | |
429 | * kconfig invocation and `defconfig' files. Unset symbol might be omitted by | |
430 | * passing a non-NULL argument to the printer. | |
431 | * | |
432 | */ | |
433 | static void | |
434 | kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
435 | { | |
436 | ||
437 | switch (sym->type) { | |
438 | case S_BOOLEAN: | |
439 | case S_TRISTATE: | |
440 | if (*value == 'n') { | |
441 | bool skip_unset = (arg != NULL); | |
442 | ||
443 | if (!skip_unset) | |
444 | fprintf(fp, "# %s%s is not set\n", | |
445 | CONFIG_, sym->name); | |
446 | return; | |
447 | } | |
448 | break; | |
449 | default: | |
450 | break; | |
451 | } | |
452 | ||
453 | fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value); | |
454 | } | |
455 | ||
456 | static void | |
457 | kconfig_print_comment(FILE *fp, const char *value, void *arg) | |
49192f26 | 458 | { |
e54e692b AL |
459 | const char *p = value; |
460 | size_t l; | |
461 | ||
462 | for (;;) { | |
463 | l = strcspn(p, "\n"); | |
464 | fprintf(fp, "#"); | |
49192f26 | 465 | if (l) { |
e54e692b AL |
466 | fprintf(fp, " "); |
467 | fwrite(p, l, 1, fp); | |
468 | p += l; | |
49192f26 | 469 | } |
e54e692b AL |
470 | fprintf(fp, "\n"); |
471 | if (*p++ == '\0') | |
49192f26 | 472 | break; |
49192f26 | 473 | } |
49192f26 SR |
474 | } |
475 | ||
e54e692b | 476 | static struct conf_printer kconfig_printer_cb = |
49192f26 | 477 | { |
e54e692b AL |
478 | .print_symbol = kconfig_print_symbol, |
479 | .print_comment = kconfig_print_comment, | |
480 | }; | |
481 | ||
482 | /* | |
483 | * Header printer | |
484 | * | |
485 | * This printer is used when generating the `include/generated/autoconf.h' file. | |
486 | */ | |
487 | static void | |
488 | header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
489 | { | |
49192f26 | 490 | |
0dce6310 | 491 | switch (sym->type) { |
49192f26 | 492 | case S_BOOLEAN: |
eb4cf5a6 AL |
493 | case S_TRISTATE: { |
494 | const char *suffix = ""; | |
495 | ||
e54e692b AL |
496 | switch (*value) { |
497 | case 'n': | |
2a11c8ea | 498 | break; |
e54e692b AL |
499 | case 'm': |
500 | suffix = "_MODULE"; | |
eb4cf5a6 | 501 | /* fall through */ |
e54e692b | 502 | default: |
2a11c8ea MM |
503 | fprintf(fp, "#define %s%s%s 1\n", |
504 | CONFIG_, sym->name, suffix); | |
49192f26 | 505 | } |
eb4cf5a6 AL |
506 | break; |
507 | } | |
508 | case S_HEX: { | |
509 | const char *prefix = ""; | |
510 | ||
511 | if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) | |
512 | prefix = "0x"; | |
513 | fprintf(fp, "#define %s%s %s%s\n", | |
514 | CONFIG_, sym->name, prefix, value); | |
515 | break; | |
516 | } | |
517 | case S_STRING: | |
518 | case S_INT: | |
519 | fprintf(fp, "#define %s%s %s\n", | |
520 | CONFIG_, sym->name, value); | |
49192f26 | 521 | break; |
e54e692b | 522 | default: |
49192f26 | 523 | break; |
e54e692b AL |
524 | } |
525 | ||
e54e692b AL |
526 | } |
527 | ||
528 | static void | |
529 | header_print_comment(FILE *fp, const char *value, void *arg) | |
530 | { | |
531 | const char *p = value; | |
532 | size_t l; | |
533 | ||
534 | fprintf(fp, "/*\n"); | |
535 | for (;;) { | |
536 | l = strcspn(p, "\n"); | |
537 | fprintf(fp, " *"); | |
538 | if (l) { | |
539 | fprintf(fp, " "); | |
540 | fwrite(p, l, 1, fp); | |
541 | p += l; | |
542 | } | |
543 | fprintf(fp, "\n"); | |
544 | if (*p++ == '\0') | |
545 | break; | |
546 | } | |
547 | fprintf(fp, " */\n"); | |
548 | } | |
549 | ||
550 | static struct conf_printer header_printer_cb = | |
551 | { | |
552 | .print_symbol = header_print_symbol, | |
553 | .print_comment = header_print_comment, | |
554 | }; | |
555 | ||
953742c8 AL |
556 | /* |
557 | * Generate the __enabled_CONFIG_* and __enabled_CONFIG_*_MODULE macros for | |
558 | * use by the IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is | |
559 | * generated even for booleans so that the IS_ENABLED() macro works. | |
560 | */ | |
561 | static void | |
562 | header_print__enabled_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
563 | { | |
564 | ||
565 | switch (sym->type) { | |
566 | case S_BOOLEAN: | |
567 | case S_TRISTATE: { | |
568 | fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n", | |
569 | sym->name, (*value == 'y')); | |
570 | fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n", | |
571 | sym->name, (*value == 'm')); | |
572 | break; | |
573 | } | |
574 | default: | |
575 | break; | |
576 | } | |
577 | } | |
578 | ||
579 | static struct conf_printer header__enabled_printer_cb = | |
580 | { | |
581 | .print_symbol = header_print__enabled_symbol, | |
582 | .print_comment = header_print_comment, | |
583 | }; | |
584 | ||
e54e692b AL |
585 | /* |
586 | * Tristate printer | |
587 | * | |
588 | * This printer is used when generating the `include/config/tristate.conf' file. | |
589 | */ | |
590 | static void | |
591 | tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
592 | { | |
593 | ||
594 | if (sym->type == S_TRISTATE && *value != 'n') | |
595 | fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value)); | |
596 | } | |
597 | ||
598 | static struct conf_printer tristate_printer_cb = | |
599 | { | |
600 | .print_symbol = tristate_print_symbol, | |
601 | .print_comment = kconfig_print_comment, | |
602 | }; | |
603 | ||
604 | static void conf_write_symbol(FILE *fp, struct symbol *sym, | |
605 | struct conf_printer *printer, void *printer_arg) | |
606 | { | |
607 | const char *str; | |
608 | ||
609 | switch (sym->type) { | |
49192f26 SR |
610 | case S_OTHER: |
611 | case S_UNKNOWN: | |
612 | break; | |
e54e692b AL |
613 | case S_STRING: |
614 | str = sym_get_string_value(sym); | |
615 | str = sym_escape_string_value(str); | |
616 | printer->print_symbol(fp, sym, str, printer_arg); | |
617 | free((void *)str); | |
618 | break; | |
619 | default: | |
620 | str = sym_get_string_value(sym); | |
621 | printer->print_symbol(fp, sym, str, printer_arg); | |
49192f26 SR |
622 | } |
623 | } | |
624 | ||
e54e692b AL |
625 | static void |
626 | conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg) | |
627 | { | |
628 | char buf[256]; | |
629 | ||
630 | snprintf(buf, sizeof(buf), | |
631 | "\n" | |
632 | "Automatically generated file; DO NOT EDIT.\n" | |
633 | "%s\n", | |
634 | rootmenu.prompt->text); | |
635 | ||
636 | printer->print_comment(fp, buf, printer_arg); | |
637 | } | |
638 | ||
7cf3d73b SR |
639 | /* |
640 | * Write out a minimal config. | |
641 | * All values that has default values are skipped as this is redundant. | |
642 | */ | |
643 | int conf_write_defconfig(const char *filename) | |
644 | { | |
645 | struct symbol *sym; | |
646 | struct menu *menu; | |
647 | FILE *out; | |
648 | ||
649 | out = fopen(filename, "w"); | |
650 | if (!out) | |
651 | return 1; | |
652 | ||
653 | sym_clear_all_valid(); | |
654 | ||
655 | /* Traverse all menus to find all relevant symbols */ | |
656 | menu = rootmenu.list; | |
657 | ||
658 | while (menu != NULL) | |
659 | { | |
660 | sym = menu->sym; | |
661 | if (sym == NULL) { | |
662 | if (!menu_is_visible(menu)) | |
663 | goto next_menu; | |
664 | } else if (!sym_is_choice(sym)) { | |
665 | sym_calc_value(sym); | |
666 | if (!(sym->flags & SYMBOL_WRITE)) | |
667 | goto next_menu; | |
668 | sym->flags &= ~SYMBOL_WRITE; | |
669 | /* If we cannot change the symbol - skip */ | |
670 | if (!sym_is_changable(sym)) | |
671 | goto next_menu; | |
672 | /* If symbol equals to default value - skip */ | |
673 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
674 | goto next_menu; | |
675 | ||
676 | /* | |
677 | * If symbol is a choice value and equals to the | |
678 | * default for a choice - skip. | |
84062dd3 SR |
679 | * But only if value is bool and equal to "y" and |
680 | * choice is not "optional". | |
681 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
682 | */ |
683 | if (sym_is_choice_value(sym)) { | |
684 | struct symbol *cs; | |
685 | struct symbol *ds; | |
686 | ||
687 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
688 | ds = sym_choice_default(cs); | |
84062dd3 | 689 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
690 | if ((sym->type == S_BOOLEAN) && |
691 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
692 | goto next_menu; |
693 | } | |
694 | } | |
e54e692b | 695 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); |
7cf3d73b SR |
696 | } |
697 | next_menu: | |
698 | if (menu->list != NULL) { | |
699 | menu = menu->list; | |
700 | } | |
701 | else if (menu->next != NULL) { | |
702 | menu = menu->next; | |
703 | } else { | |
704 | while ((menu = menu->parent)) { | |
705 | if (menu->next != NULL) { | |
706 | menu = menu->next; | |
707 | break; | |
708 | } | |
709 | } | |
710 | } | |
711 | } | |
712 | fclose(out); | |
713 | return 0; | |
714 | } | |
715 | ||
1da177e4 LT |
716 | int conf_write(const char *name) |
717 | { | |
c955ccaf | 718 | FILE *out; |
1da177e4 LT |
719 | struct symbol *sym; |
720 | struct menu *menu; | |
721 | const char *basename; | |
1da177e4 | 722 | const char *str; |
1408b15b | 723 | char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; |
1da177e4 LT |
724 | char *env; |
725 | ||
726 | dirname[0] = 0; | |
727 | if (name && name[0]) { | |
728 | struct stat st; | |
729 | char *slash; | |
730 | ||
731 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
732 | strcpy(dirname, name); | |
733 | strcat(dirname, "/"); | |
14cdd3c4 | 734 | basename = conf_get_configname(); |
1da177e4 LT |
735 | } else if ((slash = strrchr(name, '/'))) { |
736 | int size = slash - name + 1; | |
737 | memcpy(dirname, name, size); | |
738 | dirname[size] = 0; | |
739 | if (slash[1]) | |
740 | basename = slash + 1; | |
741 | else | |
14cdd3c4 | 742 | basename = conf_get_configname(); |
1da177e4 LT |
743 | } else |
744 | basename = name; | |
745 | } else | |
14cdd3c4 | 746 | basename = conf_get_configname(); |
1da177e4 | 747 | |
14cdd3c4 RZ |
748 | sprintf(newname, "%s%s", dirname, basename); |
749 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
750 | if (!env || !*env) { | |
751 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
752 | out = fopen(tmpname, "w"); | |
753 | } else { | |
754 | *tmpname = 0; | |
755 | out = fopen(newname, "w"); | |
756 | } | |
1da177e4 LT |
757 | if (!out) |
758 | return 1; | |
14cdd3c4 | 759 | |
e54e692b | 760 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
1da177e4 | 761 | |
b3214293 | 762 | if (!conf_get_changed()) |
1da177e4 LT |
763 | sym_clear_all_valid(); |
764 | ||
765 | menu = rootmenu.list; | |
766 | while (menu) { | |
767 | sym = menu->sym; | |
768 | if (!sym) { | |
769 | if (!menu_is_visible(menu)) | |
770 | goto next; | |
771 | str = menu_get_prompt(menu); | |
772 | fprintf(out, "\n" | |
773 | "#\n" | |
774 | "# %s\n" | |
775 | "#\n", str); | |
1da177e4 LT |
776 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
777 | sym_calc_value(sym); | |
778 | if (!(sym->flags & SYMBOL_WRITE)) | |
779 | goto next; | |
780 | sym->flags &= ~SYMBOL_WRITE; | |
e54e692b AL |
781 | |
782 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); | |
1da177e4 LT |
783 | } |
784 | ||
49192f26 | 785 | next: |
1da177e4 LT |
786 | if (menu->list) { |
787 | menu = menu->list; | |
788 | continue; | |
789 | } | |
790 | if (menu->next) | |
791 | menu = menu->next; | |
792 | else while ((menu = menu->parent)) { | |
793 | if (menu->next) { | |
794 | menu = menu->next; | |
795 | break; | |
796 | } | |
797 | } | |
798 | } | |
799 | fclose(out); | |
14cdd3c4 RZ |
800 | |
801 | if (*tmpname) { | |
9a3d0fe8 | 802 | strcat(dirname, basename); |
14cdd3c4 RZ |
803 | strcat(dirname, ".old"); |
804 | rename(newname, dirname); | |
805 | if (rename(tmpname, newname)) | |
806 | return 1; | |
1da177e4 | 807 | } |
1da177e4 | 808 | |
42368c37 | 809 | conf_message(_("configuration written to %s"), newname); |
ddc97cac | 810 | |
bfc10001 | 811 | sym_set_change_count(0); |
1da177e4 LT |
812 | |
813 | return 0; | |
814 | } | |
c955ccaf | 815 | |
4356f489 | 816 | static int conf_split_config(void) |
2e3646e5 | 817 | { |
12122f62 | 818 | const char *name; |
1408b15b | 819 | char path[PATH_MAX+1]; |
2e3646e5 RZ |
820 | char *s, *d, c; |
821 | struct symbol *sym; | |
822 | struct stat sb; | |
823 | int res, i, fd; | |
824 | ||
12122f62 | 825 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
826 | conf_read_simple(name, S_DEF_AUTO); |
827 | ||
828 | if (chdir("include/config")) | |
829 | return 1; | |
830 | ||
831 | res = 0; | |
832 | for_all_symbols(i, sym) { | |
833 | sym_calc_value(sym); | |
834 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
835 | continue; | |
836 | if (sym->flags & SYMBOL_WRITE) { | |
837 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
838 | /* | |
839 | * symbol has old and new value, | |
840 | * so compare them... | |
841 | */ | |
842 | switch (sym->type) { | |
843 | case S_BOOLEAN: | |
844 | case S_TRISTATE: | |
845 | if (sym_get_tristate_value(sym) == | |
846 | sym->def[S_DEF_AUTO].tri) | |
847 | continue; | |
848 | break; | |
849 | case S_STRING: | |
850 | case S_HEX: | |
851 | case S_INT: | |
852 | if (!strcmp(sym_get_string_value(sym), | |
853 | sym->def[S_DEF_AUTO].val)) | |
854 | continue; | |
855 | break; | |
856 | default: | |
857 | break; | |
858 | } | |
859 | } else { | |
860 | /* | |
861 | * If there is no old value, only 'no' (unset) | |
862 | * is allowed as new value. | |
863 | */ | |
864 | switch (sym->type) { | |
865 | case S_BOOLEAN: | |
866 | case S_TRISTATE: | |
867 | if (sym_get_tristate_value(sym) == no) | |
868 | continue; | |
869 | break; | |
870 | default: | |
871 | break; | |
872 | } | |
873 | } | |
874 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
875 | /* There is neither an old nor a new value. */ | |
876 | continue; | |
877 | /* else | |
878 | * There is an old value, but no new value ('no' (unset) | |
879 | * isn't saved in auto.conf, so the old value is always | |
880 | * different from 'no'). | |
881 | */ | |
882 | ||
883 | /* Replace all '_' and append ".h" */ | |
884 | s = sym->name; | |
885 | d = path; | |
886 | while ((c = *s++)) { | |
887 | c = tolower(c); | |
888 | *d++ = (c == '_') ? '/' : c; | |
889 | } | |
890 | strcpy(d, ".h"); | |
891 | ||
892 | /* Assume directory path already exists. */ | |
893 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
894 | if (fd == -1) { | |
895 | if (errno != ENOENT) { | |
896 | res = 1; | |
897 | break; | |
898 | } | |
899 | /* | |
900 | * Create directory components, | |
901 | * unless they exist already. | |
902 | */ | |
903 | d = path; | |
904 | while ((d = strchr(d, '/'))) { | |
905 | *d = 0; | |
906 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
907 | res = 1; | |
908 | goto out; | |
909 | } | |
910 | *d++ = '/'; | |
911 | } | |
912 | /* Try it again. */ | |
913 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
914 | if (fd == -1) { | |
915 | res = 1; | |
916 | break; | |
917 | } | |
918 | } | |
919 | close(fd); | |
920 | } | |
921 | out: | |
922 | if (chdir("../..")) | |
923 | return 1; | |
924 | ||
925 | return res; | |
926 | } | |
927 | ||
c955ccaf RZ |
928 | int conf_write_autoconf(void) |
929 | { | |
930 | struct symbol *sym; | |
12122f62 | 931 | const char *name; |
bc081dd6 | 932 | FILE *out, *tristate, *out_h; |
49192f26 | 933 | int i; |
c955ccaf | 934 | |
2e3646e5 RZ |
935 | sym_clear_all_valid(); |
936 | ||
c955ccaf RZ |
937 | file_write_dep("include/config/auto.conf.cmd"); |
938 | ||
2e3646e5 RZ |
939 | if (conf_split_config()) |
940 | return 1; | |
941 | ||
c955ccaf RZ |
942 | out = fopen(".tmpconfig", "w"); |
943 | if (!out) | |
944 | return 1; | |
945 | ||
bc081dd6 MM |
946 | tristate = fopen(".tmpconfig_tristate", "w"); |
947 | if (!tristate) { | |
948 | fclose(out); | |
949 | return 1; | |
950 | } | |
951 | ||
c955ccaf RZ |
952 | out_h = fopen(".tmpconfig.h", "w"); |
953 | if (!out_h) { | |
954 | fclose(out); | |
bc081dd6 | 955 | fclose(tristate); |
c955ccaf RZ |
956 | return 1; |
957 | } | |
958 | ||
e54e692b AL |
959 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
960 | ||
961 | conf_write_heading(tristate, &tristate_printer_cb, NULL); | |
962 | ||
963 | conf_write_heading(out_h, &header_printer_cb, NULL); | |
c955ccaf | 964 | |
c955ccaf | 965 | for_all_symbols(i, sym) { |
953742c8 AL |
966 | if (!sym->name) |
967 | continue; | |
968 | ||
c955ccaf | 969 | sym_calc_value(sym); |
953742c8 AL |
970 | |
971 | conf_write_symbol(out_h, sym, &header__enabled_printer_cb, NULL); | |
972 | ||
973 | if (!(sym->flags & SYMBOL_WRITE)) | |
c955ccaf | 974 | continue; |
49192f26 | 975 | |
e54e692b | 976 | conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); |
49192f26 | 977 | |
e54e692b AL |
978 | conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); |
979 | ||
980 | conf_write_symbol(out_h, sym, &header_printer_cb, NULL); | |
c955ccaf RZ |
981 | } |
982 | fclose(out); | |
bc081dd6 | 983 | fclose(tristate); |
c955ccaf RZ |
984 | fclose(out_h); |
985 | ||
986 | name = getenv("KCONFIG_AUTOHEADER"); | |
987 | if (!name) | |
264a2683 | 988 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
989 | if (rename(".tmpconfig.h", name)) |
990 | return 1; | |
bc081dd6 MM |
991 | name = getenv("KCONFIG_TRISTATE"); |
992 | if (!name) | |
993 | name = "include/config/tristate.conf"; | |
994 | if (rename(".tmpconfig_tristate", name)) | |
995 | return 1; | |
12122f62 | 996 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
997 | /* |
998 | * This must be the last step, kbuild has a dependency on auto.conf | |
999 | * and this marks the successful completion of the previous steps. | |
1000 | */ | |
1001 | if (rename(".tmpconfig", name)) | |
1002 | return 1; | |
1003 | ||
1004 | return 0; | |
1005 | } | |
b3214293 | 1006 | |
bfc10001 | 1007 | static int sym_change_count; |
3b354c55 | 1008 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
1009 | |
1010 | void sym_set_change_count(int count) | |
1011 | { | |
3b354c55 | 1012 | int _sym_change_count = sym_change_count; |
bfc10001 | 1013 | sym_change_count = count; |
3b354c55 KW |
1014 | if (conf_changed_callback && |
1015 | (bool)_sym_change_count != (bool)count) | |
1016 | conf_changed_callback(); | |
bfc10001 KW |
1017 | } |
1018 | ||
1019 | void sym_add_change_count(int count) | |
1020 | { | |
3b354c55 | 1021 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
1022 | } |
1023 | ||
b3214293 KW |
1024 | bool conf_get_changed(void) |
1025 | { | |
1026 | return sym_change_count; | |
1027 | } | |
3b354c55 KW |
1028 | |
1029 | void conf_set_changed_callback(void (*fn)(void)) | |
1030 | { | |
1031 | conf_changed_callback = fn; | |
1032 | } | |
dc7862e5 | 1033 | |
a64b44ea SR |
1034 | static void randomize_choice_values(struct symbol *csym) |
1035 | { | |
1036 | struct property *prop; | |
1037 | struct symbol *sym; | |
1038 | struct expr *e; | |
1039 | int cnt, def; | |
dc7862e5 | 1040 | |
a64b44ea | 1041 | /* |
579fb8e7 | 1042 | * If choice is mod then we may have more items selected |
a64b44ea SR |
1043 | * and if no then no-one. |
1044 | * In both cases stop. | |
1045 | */ | |
1046 | if (csym->curr.tri != yes) | |
1047 | return; | |
1048 | ||
1049 | prop = sym_get_choice_prop(csym); | |
1050 | ||
1051 | /* count entries in choice block */ | |
1052 | cnt = 0; | |
1053 | expr_list_for_each_sym(prop->expr, e, sym) | |
1054 | cnt++; | |
1055 | ||
1056 | /* | |
1057 | * find a random value and set it to yes, | |
1058 | * set the rest to no so we have only one set | |
1059 | */ | |
1060 | def = (rand() % cnt); | |
1061 | ||
1062 | cnt = 0; | |
1063 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1064 | if (def == cnt++) { | |
1065 | sym->def[S_DEF_USER].tri = yes; | |
1066 | csym->def[S_DEF_USER].val = sym; | |
1067 | } | |
1068 | else { | |
1069 | sym->def[S_DEF_USER].tri = no; | |
1070 | } | |
1071 | } | |
1072 | csym->flags |= SYMBOL_DEF_USER; | |
1073 | /* clear VALID to get value calculated */ | |
1074 | csym->flags &= ~(SYMBOL_VALID); | |
1075 | } | |
1076 | ||
1077 | static void set_all_choice_values(struct symbol *csym) | |
dc7862e5 | 1078 | { |
dc7862e5 | 1079 | struct property *prop; |
a64b44ea | 1080 | struct symbol *sym; |
dc7862e5 | 1081 | struct expr *e; |
a64b44ea SR |
1082 | |
1083 | prop = sym_get_choice_prop(csym); | |
1084 | ||
1085 | /* | |
1086 | * Set all non-assinged choice values to no | |
1087 | */ | |
1088 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1089 | if (!sym_has_value(sym)) | |
1090 | sym->def[S_DEF_USER].tri = no; | |
1091 | } | |
1092 | csym->flags |= SYMBOL_DEF_USER; | |
1093 | /* clear VALID to get value calculated */ | |
1094 | csym->flags &= ~(SYMBOL_VALID); | |
1095 | } | |
1096 | ||
1097 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
1098 | { | |
1099 | struct symbol *sym, *csym; | |
1100 | int i, cnt; | |
dc7862e5 RZ |
1101 | |
1102 | for_all_symbols(i, sym) { | |
1103 | if (sym_has_value(sym)) | |
1104 | continue; | |
1105 | switch (sym_get_type(sym)) { | |
1106 | case S_BOOLEAN: | |
1107 | case S_TRISTATE: | |
1108 | switch (mode) { | |
1109 | case def_yes: | |
1110 | sym->def[S_DEF_USER].tri = yes; | |
1111 | break; | |
1112 | case def_mod: | |
1113 | sym->def[S_DEF_USER].tri = mod; | |
1114 | break; | |
1115 | case def_no: | |
1116 | sym->def[S_DEF_USER].tri = no; | |
1117 | break; | |
1118 | case def_random: | |
1244b41d PK |
1119 | cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2; |
1120 | sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); | |
dc7862e5 RZ |
1121 | break; |
1122 | default: | |
1123 | continue; | |
1124 | } | |
184832c9 | 1125 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1126 | sym->flags |= SYMBOL_DEF_USER; |
1127 | break; | |
1128 | default: | |
1129 | break; | |
1130 | } | |
1131 | ||
1132 | } | |
1133 | ||
ce97e13e | 1134 | sym_clear_all_valid(); |
dc7862e5 | 1135 | |
184832c9 SR |
1136 | /* |
1137 | * We have different type of choice blocks. | |
579fb8e7 | 1138 | * If curr.tri equals to mod then we can select several |
184832c9 SR |
1139 | * choice symbols in one block. |
1140 | * In this case we do nothing. | |
579fb8e7 | 1141 | * If curr.tri equals yes then only one symbol can be |
184832c9 SR |
1142 | * selected in a choice block and we set it to yes, |
1143 | * and the rest to no. | |
1144 | */ | |
dc7862e5 RZ |
1145 | for_all_symbols(i, csym) { |
1146 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1147 | continue; | |
1148 | ||
1149 | sym_calc_value(csym); | |
a64b44ea SR |
1150 | if (mode == def_random) |
1151 | randomize_choice_values(csym); | |
1152 | else | |
1153 | set_all_choice_values(csym); | |
dc7862e5 RZ |
1154 | } |
1155 | } |