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 | { | |
5d09598d AL |
347 | struct symbol *sym; |
348 | int i; | |
90389160 | 349 | |
bfc10001 | 350 | sym_set_change_count(0); |
ddc97cac | 351 | |
669bfad9 | 352 | if (conf_read_simple(name, S_DEF_USER)) |
90389160 RZ |
353 | return 1; |
354 | ||
1da177e4 LT |
355 | for_all_symbols(i, sym) { |
356 | sym_calc_value(sym); | |
c1a0f5e3 | 357 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
5d09598d | 358 | continue; |
c1a0f5e3 RZ |
359 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { |
360 | /* check that calculated value agrees with saved value */ | |
361 | switch (sym->type) { | |
362 | case S_BOOLEAN: | |
363 | case S_TRISTATE: | |
0c1822e6 | 364 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
365 | break; |
366 | if (!sym_is_choice(sym)) | |
5d09598d | 367 | continue; |
d8fc3200 | 368 | /* fall through */ |
c1a0f5e3 | 369 | default: |
0c1822e6 | 370 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
5d09598d | 371 | continue; |
c1a0f5e3 RZ |
372 | break; |
373 | } | |
374 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
375 | /* no previous value and not saved */ | |
5d09598d | 376 | continue; |
c1a0f5e3 RZ |
377 | conf_unsaved++; |
378 | /* maybe print value in verbose mode... */ | |
d8982ba1 RZ |
379 | } |
380 | ||
381 | for_all_symbols(i, sym) { | |
1da177e4 | 382 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
383 | /* Reset values of generates values, so they'll appear |
384 | * as new, if they should become visible, but that | |
385 | * doesn't quite work if the Kconfig and the saved | |
386 | * configuration disagree. | |
387 | */ | |
388 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 389 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
390 | switch (sym->type) { |
391 | case S_STRING: | |
392 | case S_INT: | |
393 | case S_HEX: | |
d8982ba1 RZ |
394 | /* Reset a string value if it's out of range */ |
395 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
396 | break; | |
397 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
398 | conf_unsaved++; | |
399 | break; | |
1da177e4 LT |
400 | default: |
401 | break; | |
402 | } | |
403 | } | |
1da177e4 LT |
404 | } |
405 | ||
bfc10001 | 406 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
407 | |
408 | return 0; | |
409 | } | |
410 | ||
e54e692b AL |
411 | /* |
412 | * Kconfig configuration printer | |
413 | * | |
414 | * This printer is used when generating the resulting configuration after | |
415 | * kconfig invocation and `defconfig' files. Unset symbol might be omitted by | |
416 | * passing a non-NULL argument to the printer. | |
417 | * | |
418 | */ | |
419 | static void | |
420 | kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
421 | { | |
422 | ||
423 | switch (sym->type) { | |
424 | case S_BOOLEAN: | |
425 | case S_TRISTATE: | |
426 | if (*value == 'n') { | |
427 | bool skip_unset = (arg != NULL); | |
428 | ||
429 | if (!skip_unset) | |
430 | fprintf(fp, "# %s%s is not set\n", | |
431 | CONFIG_, sym->name); | |
432 | return; | |
433 | } | |
434 | break; | |
435 | default: | |
436 | break; | |
437 | } | |
438 | ||
439 | fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value); | |
440 | } | |
441 | ||
442 | static void | |
443 | kconfig_print_comment(FILE *fp, const char *value, void *arg) | |
49192f26 | 444 | { |
e54e692b AL |
445 | const char *p = value; |
446 | size_t l; | |
447 | ||
448 | for (;;) { | |
449 | l = strcspn(p, "\n"); | |
450 | fprintf(fp, "#"); | |
49192f26 | 451 | if (l) { |
e54e692b | 452 | fprintf(fp, " "); |
70cc01e7 | 453 | xfwrite(p, l, 1, fp); |
e54e692b | 454 | p += l; |
49192f26 | 455 | } |
e54e692b AL |
456 | fprintf(fp, "\n"); |
457 | if (*p++ == '\0') | |
49192f26 | 458 | break; |
49192f26 | 459 | } |
49192f26 SR |
460 | } |
461 | ||
e54e692b | 462 | static struct conf_printer kconfig_printer_cb = |
49192f26 | 463 | { |
e54e692b AL |
464 | .print_symbol = kconfig_print_symbol, |
465 | .print_comment = kconfig_print_comment, | |
466 | }; | |
467 | ||
468 | /* | |
469 | * Header printer | |
470 | * | |
471 | * This printer is used when generating the `include/generated/autoconf.h' file. | |
472 | */ | |
473 | static void | |
474 | header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
475 | { | |
49192f26 | 476 | |
0dce6310 | 477 | switch (sym->type) { |
49192f26 | 478 | case S_BOOLEAN: |
eb4cf5a6 AL |
479 | case S_TRISTATE: { |
480 | const char *suffix = ""; | |
481 | ||
e54e692b AL |
482 | switch (*value) { |
483 | case 'n': | |
2a11c8ea | 484 | break; |
e54e692b AL |
485 | case 'm': |
486 | suffix = "_MODULE"; | |
eb4cf5a6 | 487 | /* fall through */ |
e54e692b | 488 | default: |
2a11c8ea MM |
489 | fprintf(fp, "#define %s%s%s 1\n", |
490 | CONFIG_, sym->name, suffix); | |
49192f26 | 491 | } |
a9596135 PG |
492 | /* |
493 | * Generate the __enabled_CONFIG_* and | |
494 | * __enabled_CONFIG_*_MODULE macros for use by the | |
495 | * IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is | |
496 | * generated even for booleans so that the IS_ENABLED() macro | |
497 | * works. | |
498 | */ | |
499 | fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n", | |
500 | sym->name, (*value == 'y')); | |
501 | fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n", | |
502 | sym->name, (*value == 'm')); | |
eb4cf5a6 AL |
503 | break; |
504 | } | |
505 | case S_HEX: { | |
506 | const char *prefix = ""; | |
507 | ||
508 | if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) | |
509 | prefix = "0x"; | |
510 | fprintf(fp, "#define %s%s %s%s\n", | |
511 | CONFIG_, sym->name, prefix, value); | |
512 | break; | |
513 | } | |
514 | case S_STRING: | |
515 | case S_INT: | |
516 | fprintf(fp, "#define %s%s %s\n", | |
517 | CONFIG_, sym->name, value); | |
49192f26 | 518 | break; |
e54e692b | 519 | default: |
49192f26 | 520 | break; |
e54e692b AL |
521 | } |
522 | ||
e54e692b AL |
523 | } |
524 | ||
525 | static void | |
526 | header_print_comment(FILE *fp, const char *value, void *arg) | |
527 | { | |
528 | const char *p = value; | |
529 | size_t l; | |
530 | ||
531 | fprintf(fp, "/*\n"); | |
532 | for (;;) { | |
533 | l = strcspn(p, "\n"); | |
534 | fprintf(fp, " *"); | |
535 | if (l) { | |
536 | fprintf(fp, " "); | |
70cc01e7 | 537 | xfwrite(p, l, 1, fp); |
e54e692b AL |
538 | p += l; |
539 | } | |
540 | fprintf(fp, "\n"); | |
541 | if (*p++ == '\0') | |
542 | break; | |
543 | } | |
544 | fprintf(fp, " */\n"); | |
545 | } | |
546 | ||
547 | static struct conf_printer header_printer_cb = | |
548 | { | |
549 | .print_symbol = header_print_symbol, | |
550 | .print_comment = header_print_comment, | |
551 | }; | |
552 | ||
e54e692b AL |
553 | /* |
554 | * Tristate printer | |
555 | * | |
556 | * This printer is used when generating the `include/config/tristate.conf' file. | |
557 | */ | |
558 | static void | |
559 | tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
560 | { | |
561 | ||
562 | if (sym->type == S_TRISTATE && *value != 'n') | |
563 | fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value)); | |
564 | } | |
565 | ||
566 | static struct conf_printer tristate_printer_cb = | |
567 | { | |
568 | .print_symbol = tristate_print_symbol, | |
569 | .print_comment = kconfig_print_comment, | |
570 | }; | |
571 | ||
572 | static void conf_write_symbol(FILE *fp, struct symbol *sym, | |
573 | struct conf_printer *printer, void *printer_arg) | |
574 | { | |
575 | const char *str; | |
576 | ||
577 | switch (sym->type) { | |
49192f26 SR |
578 | case S_OTHER: |
579 | case S_UNKNOWN: | |
580 | break; | |
e54e692b AL |
581 | case S_STRING: |
582 | str = sym_get_string_value(sym); | |
583 | str = sym_escape_string_value(str); | |
584 | printer->print_symbol(fp, sym, str, printer_arg); | |
585 | free((void *)str); | |
586 | break; | |
587 | default: | |
588 | str = sym_get_string_value(sym); | |
589 | printer->print_symbol(fp, sym, str, printer_arg); | |
49192f26 SR |
590 | } |
591 | } | |
592 | ||
e54e692b AL |
593 | static void |
594 | conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg) | |
595 | { | |
596 | char buf[256]; | |
597 | ||
598 | snprintf(buf, sizeof(buf), | |
599 | "\n" | |
600 | "Automatically generated file; DO NOT EDIT.\n" | |
601 | "%s\n", | |
602 | rootmenu.prompt->text); | |
603 | ||
604 | printer->print_comment(fp, buf, printer_arg); | |
605 | } | |
606 | ||
7cf3d73b SR |
607 | /* |
608 | * Write out a minimal config. | |
609 | * All values that has default values are skipped as this is redundant. | |
610 | */ | |
611 | int conf_write_defconfig(const char *filename) | |
612 | { | |
613 | struct symbol *sym; | |
614 | struct menu *menu; | |
615 | FILE *out; | |
616 | ||
617 | out = fopen(filename, "w"); | |
618 | if (!out) | |
619 | return 1; | |
620 | ||
621 | sym_clear_all_valid(); | |
622 | ||
623 | /* Traverse all menus to find all relevant symbols */ | |
624 | menu = rootmenu.list; | |
625 | ||
626 | while (menu != NULL) | |
627 | { | |
628 | sym = menu->sym; | |
629 | if (sym == NULL) { | |
630 | if (!menu_is_visible(menu)) | |
631 | goto next_menu; | |
632 | } else if (!sym_is_choice(sym)) { | |
633 | sym_calc_value(sym); | |
634 | if (!(sym->flags & SYMBOL_WRITE)) | |
635 | goto next_menu; | |
636 | sym->flags &= ~SYMBOL_WRITE; | |
637 | /* If we cannot change the symbol - skip */ | |
638 | if (!sym_is_changable(sym)) | |
639 | goto next_menu; | |
640 | /* If symbol equals to default value - skip */ | |
641 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
642 | goto next_menu; | |
643 | ||
644 | /* | |
645 | * If symbol is a choice value and equals to the | |
646 | * default for a choice - skip. | |
84062dd3 SR |
647 | * But only if value is bool and equal to "y" and |
648 | * choice is not "optional". | |
649 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
650 | */ |
651 | if (sym_is_choice_value(sym)) { | |
652 | struct symbol *cs; | |
653 | struct symbol *ds; | |
654 | ||
655 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
656 | ds = sym_choice_default(cs); | |
84062dd3 | 657 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
658 | if ((sym->type == S_BOOLEAN) && |
659 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
660 | goto next_menu; |
661 | } | |
662 | } | |
e54e692b | 663 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); |
7cf3d73b SR |
664 | } |
665 | next_menu: | |
666 | if (menu->list != NULL) { | |
667 | menu = menu->list; | |
668 | } | |
669 | else if (menu->next != NULL) { | |
670 | menu = menu->next; | |
671 | } else { | |
672 | while ((menu = menu->parent)) { | |
673 | if (menu->next != NULL) { | |
674 | menu = menu->next; | |
675 | break; | |
676 | } | |
677 | } | |
678 | } | |
679 | } | |
680 | fclose(out); | |
681 | return 0; | |
682 | } | |
683 | ||
1da177e4 LT |
684 | int conf_write(const char *name) |
685 | { | |
c955ccaf | 686 | FILE *out; |
1da177e4 LT |
687 | struct symbol *sym; |
688 | struct menu *menu; | |
689 | const char *basename; | |
1da177e4 | 690 | const char *str; |
1408b15b | 691 | char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; |
1da177e4 LT |
692 | char *env; |
693 | ||
694 | dirname[0] = 0; | |
695 | if (name && name[0]) { | |
696 | struct stat st; | |
697 | char *slash; | |
698 | ||
699 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
700 | strcpy(dirname, name); | |
701 | strcat(dirname, "/"); | |
14cdd3c4 | 702 | basename = conf_get_configname(); |
1da177e4 LT |
703 | } else if ((slash = strrchr(name, '/'))) { |
704 | int size = slash - name + 1; | |
705 | memcpy(dirname, name, size); | |
706 | dirname[size] = 0; | |
707 | if (slash[1]) | |
708 | basename = slash + 1; | |
709 | else | |
14cdd3c4 | 710 | basename = conf_get_configname(); |
1da177e4 LT |
711 | } else |
712 | basename = name; | |
713 | } else | |
14cdd3c4 | 714 | basename = conf_get_configname(); |
1da177e4 | 715 | |
14cdd3c4 RZ |
716 | sprintf(newname, "%s%s", dirname, basename); |
717 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
718 | if (!env || !*env) { | |
719 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
720 | out = fopen(tmpname, "w"); | |
721 | } else { | |
722 | *tmpname = 0; | |
723 | out = fopen(newname, "w"); | |
724 | } | |
1da177e4 LT |
725 | if (!out) |
726 | return 1; | |
14cdd3c4 | 727 | |
e54e692b | 728 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
1da177e4 | 729 | |
b3214293 | 730 | if (!conf_get_changed()) |
1da177e4 LT |
731 | sym_clear_all_valid(); |
732 | ||
733 | menu = rootmenu.list; | |
734 | while (menu) { | |
735 | sym = menu->sym; | |
736 | if (!sym) { | |
737 | if (!menu_is_visible(menu)) | |
738 | goto next; | |
739 | str = menu_get_prompt(menu); | |
740 | fprintf(out, "\n" | |
741 | "#\n" | |
742 | "# %s\n" | |
743 | "#\n", str); | |
1da177e4 LT |
744 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
745 | sym_calc_value(sym); | |
746 | if (!(sym->flags & SYMBOL_WRITE)) | |
747 | goto next; | |
748 | sym->flags &= ~SYMBOL_WRITE; | |
e54e692b AL |
749 | |
750 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); | |
1da177e4 LT |
751 | } |
752 | ||
49192f26 | 753 | next: |
1da177e4 LT |
754 | if (menu->list) { |
755 | menu = menu->list; | |
756 | continue; | |
757 | } | |
758 | if (menu->next) | |
759 | menu = menu->next; | |
760 | else while ((menu = menu->parent)) { | |
761 | if (menu->next) { | |
762 | menu = menu->next; | |
763 | break; | |
764 | } | |
765 | } | |
766 | } | |
767 | fclose(out); | |
14cdd3c4 RZ |
768 | |
769 | if (*tmpname) { | |
9a3d0fe8 | 770 | strcat(dirname, basename); |
14cdd3c4 RZ |
771 | strcat(dirname, ".old"); |
772 | rename(newname, dirname); | |
773 | if (rename(tmpname, newname)) | |
774 | return 1; | |
1da177e4 | 775 | } |
1da177e4 | 776 | |
42368c37 | 777 | conf_message(_("configuration written to %s"), newname); |
ddc97cac | 778 | |
bfc10001 | 779 | sym_set_change_count(0); |
1da177e4 LT |
780 | |
781 | return 0; | |
782 | } | |
c955ccaf | 783 | |
4356f489 | 784 | static int conf_split_config(void) |
2e3646e5 | 785 | { |
12122f62 | 786 | const char *name; |
1408b15b | 787 | char path[PATH_MAX+1]; |
2e3646e5 RZ |
788 | char *s, *d, c; |
789 | struct symbol *sym; | |
790 | struct stat sb; | |
791 | int res, i, fd; | |
792 | ||
12122f62 | 793 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
794 | conf_read_simple(name, S_DEF_AUTO); |
795 | ||
796 | if (chdir("include/config")) | |
797 | return 1; | |
798 | ||
799 | res = 0; | |
800 | for_all_symbols(i, sym) { | |
801 | sym_calc_value(sym); | |
802 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
803 | continue; | |
804 | if (sym->flags & SYMBOL_WRITE) { | |
805 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
806 | /* | |
807 | * symbol has old and new value, | |
808 | * so compare them... | |
809 | */ | |
810 | switch (sym->type) { | |
811 | case S_BOOLEAN: | |
812 | case S_TRISTATE: | |
813 | if (sym_get_tristate_value(sym) == | |
814 | sym->def[S_DEF_AUTO].tri) | |
815 | continue; | |
816 | break; | |
817 | case S_STRING: | |
818 | case S_HEX: | |
819 | case S_INT: | |
820 | if (!strcmp(sym_get_string_value(sym), | |
821 | sym->def[S_DEF_AUTO].val)) | |
822 | continue; | |
823 | break; | |
824 | default: | |
825 | break; | |
826 | } | |
827 | } else { | |
828 | /* | |
829 | * If there is no old value, only 'no' (unset) | |
830 | * is allowed as new value. | |
831 | */ | |
832 | switch (sym->type) { | |
833 | case S_BOOLEAN: | |
834 | case S_TRISTATE: | |
835 | if (sym_get_tristate_value(sym) == no) | |
836 | continue; | |
837 | break; | |
838 | default: | |
839 | break; | |
840 | } | |
841 | } | |
842 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
843 | /* There is neither an old nor a new value. */ | |
844 | continue; | |
845 | /* else | |
846 | * There is an old value, but no new value ('no' (unset) | |
847 | * isn't saved in auto.conf, so the old value is always | |
848 | * different from 'no'). | |
849 | */ | |
850 | ||
851 | /* Replace all '_' and append ".h" */ | |
852 | s = sym->name; | |
853 | d = path; | |
854 | while ((c = *s++)) { | |
855 | c = tolower(c); | |
856 | *d++ = (c == '_') ? '/' : c; | |
857 | } | |
858 | strcpy(d, ".h"); | |
859 | ||
860 | /* Assume directory path already exists. */ | |
861 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
862 | if (fd == -1) { | |
863 | if (errno != ENOENT) { | |
864 | res = 1; | |
865 | break; | |
866 | } | |
867 | /* | |
868 | * Create directory components, | |
869 | * unless they exist already. | |
870 | */ | |
871 | d = path; | |
872 | while ((d = strchr(d, '/'))) { | |
873 | *d = 0; | |
874 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
875 | res = 1; | |
876 | goto out; | |
877 | } | |
878 | *d++ = '/'; | |
879 | } | |
880 | /* Try it again. */ | |
881 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
882 | if (fd == -1) { | |
883 | res = 1; | |
884 | break; | |
885 | } | |
886 | } | |
887 | close(fd); | |
888 | } | |
889 | out: | |
890 | if (chdir("../..")) | |
891 | return 1; | |
892 | ||
893 | return res; | |
894 | } | |
895 | ||
c955ccaf RZ |
896 | int conf_write_autoconf(void) |
897 | { | |
898 | struct symbol *sym; | |
12122f62 | 899 | const char *name; |
bc081dd6 | 900 | FILE *out, *tristate, *out_h; |
49192f26 | 901 | int i; |
c955ccaf | 902 | |
2e3646e5 RZ |
903 | sym_clear_all_valid(); |
904 | ||
c955ccaf RZ |
905 | file_write_dep("include/config/auto.conf.cmd"); |
906 | ||
2e3646e5 RZ |
907 | if (conf_split_config()) |
908 | return 1; | |
909 | ||
c955ccaf RZ |
910 | out = fopen(".tmpconfig", "w"); |
911 | if (!out) | |
912 | return 1; | |
913 | ||
bc081dd6 MM |
914 | tristate = fopen(".tmpconfig_tristate", "w"); |
915 | if (!tristate) { | |
916 | fclose(out); | |
917 | return 1; | |
918 | } | |
919 | ||
c955ccaf RZ |
920 | out_h = fopen(".tmpconfig.h", "w"); |
921 | if (!out_h) { | |
922 | fclose(out); | |
bc081dd6 | 923 | fclose(tristate); |
c955ccaf RZ |
924 | return 1; |
925 | } | |
926 | ||
e54e692b AL |
927 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
928 | ||
929 | conf_write_heading(tristate, &tristate_printer_cb, NULL); | |
930 | ||
931 | conf_write_heading(out_h, &header_printer_cb, NULL); | |
c955ccaf | 932 | |
c955ccaf RZ |
933 | for_all_symbols(i, sym) { |
934 | sym_calc_value(sym); | |
a9596135 | 935 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) |
c955ccaf | 936 | continue; |
49192f26 | 937 | |
a9596135 | 938 | /* write symbol to auto.conf, tristate and header files */ |
e54e692b | 939 | conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); |
49192f26 | 940 | |
e54e692b AL |
941 | conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); |
942 | ||
943 | conf_write_symbol(out_h, sym, &header_printer_cb, NULL); | |
c955ccaf RZ |
944 | } |
945 | fclose(out); | |
bc081dd6 | 946 | fclose(tristate); |
c955ccaf RZ |
947 | fclose(out_h); |
948 | ||
949 | name = getenv("KCONFIG_AUTOHEADER"); | |
950 | if (!name) | |
264a2683 | 951 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
952 | if (rename(".tmpconfig.h", name)) |
953 | return 1; | |
bc081dd6 MM |
954 | name = getenv("KCONFIG_TRISTATE"); |
955 | if (!name) | |
956 | name = "include/config/tristate.conf"; | |
957 | if (rename(".tmpconfig_tristate", name)) | |
958 | return 1; | |
12122f62 | 959 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
960 | /* |
961 | * This must be the last step, kbuild has a dependency on auto.conf | |
962 | * and this marks the successful completion of the previous steps. | |
963 | */ | |
964 | if (rename(".tmpconfig", name)) | |
965 | return 1; | |
966 | ||
967 | return 0; | |
968 | } | |
b3214293 | 969 | |
bfc10001 | 970 | static int sym_change_count; |
3b354c55 | 971 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
972 | |
973 | void sym_set_change_count(int count) | |
974 | { | |
3b354c55 | 975 | int _sym_change_count = sym_change_count; |
bfc10001 | 976 | sym_change_count = count; |
3b354c55 KW |
977 | if (conf_changed_callback && |
978 | (bool)_sym_change_count != (bool)count) | |
979 | conf_changed_callback(); | |
bfc10001 KW |
980 | } |
981 | ||
982 | void sym_add_change_count(int count) | |
983 | { | |
3b354c55 | 984 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
985 | } |
986 | ||
b3214293 KW |
987 | bool conf_get_changed(void) |
988 | { | |
989 | return sym_change_count; | |
990 | } | |
3b354c55 KW |
991 | |
992 | void conf_set_changed_callback(void (*fn)(void)) | |
993 | { | |
994 | conf_changed_callback = fn; | |
995 | } | |
dc7862e5 | 996 | |
a64b44ea SR |
997 | static void randomize_choice_values(struct symbol *csym) |
998 | { | |
999 | struct property *prop; | |
1000 | struct symbol *sym; | |
1001 | struct expr *e; | |
1002 | int cnt, def; | |
dc7862e5 | 1003 | |
a64b44ea | 1004 | /* |
579fb8e7 | 1005 | * If choice is mod then we may have more items selected |
a64b44ea SR |
1006 | * and if no then no-one. |
1007 | * In both cases stop. | |
1008 | */ | |
1009 | if (csym->curr.tri != yes) | |
1010 | return; | |
1011 | ||
1012 | prop = sym_get_choice_prop(csym); | |
1013 | ||
1014 | /* count entries in choice block */ | |
1015 | cnt = 0; | |
1016 | expr_list_for_each_sym(prop->expr, e, sym) | |
1017 | cnt++; | |
1018 | ||
1019 | /* | |
1020 | * find a random value and set it to yes, | |
1021 | * set the rest to no so we have only one set | |
1022 | */ | |
1023 | def = (rand() % cnt); | |
1024 | ||
1025 | cnt = 0; | |
1026 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1027 | if (def == cnt++) { | |
1028 | sym->def[S_DEF_USER].tri = yes; | |
1029 | csym->def[S_DEF_USER].val = sym; | |
1030 | } | |
1031 | else { | |
1032 | sym->def[S_DEF_USER].tri = no; | |
1033 | } | |
1034 | } | |
1035 | csym->flags |= SYMBOL_DEF_USER; | |
1036 | /* clear VALID to get value calculated */ | |
1037 | csym->flags &= ~(SYMBOL_VALID); | |
1038 | } | |
1039 | ||
1040 | static void set_all_choice_values(struct symbol *csym) | |
dc7862e5 | 1041 | { |
dc7862e5 | 1042 | struct property *prop; |
a64b44ea | 1043 | struct symbol *sym; |
dc7862e5 | 1044 | struct expr *e; |
a64b44ea SR |
1045 | |
1046 | prop = sym_get_choice_prop(csym); | |
1047 | ||
1048 | /* | |
1049 | * Set all non-assinged choice values to no | |
1050 | */ | |
1051 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1052 | if (!sym_has_value(sym)) | |
1053 | sym->def[S_DEF_USER].tri = no; | |
1054 | } | |
1055 | csym->flags |= SYMBOL_DEF_USER; | |
1056 | /* clear VALID to get value calculated */ | |
1057 | csym->flags &= ~(SYMBOL_VALID); | |
1058 | } | |
1059 | ||
1060 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
1061 | { | |
1062 | struct symbol *sym, *csym; | |
1063 | int i, cnt; | |
dc7862e5 RZ |
1064 | |
1065 | for_all_symbols(i, sym) { | |
1066 | if (sym_has_value(sym)) | |
1067 | continue; | |
1068 | switch (sym_get_type(sym)) { | |
1069 | case S_BOOLEAN: | |
1070 | case S_TRISTATE: | |
1071 | switch (mode) { | |
1072 | case def_yes: | |
1073 | sym->def[S_DEF_USER].tri = yes; | |
1074 | break; | |
1075 | case def_mod: | |
1076 | sym->def[S_DEF_USER].tri = mod; | |
1077 | break; | |
1078 | case def_no: | |
1079 | sym->def[S_DEF_USER].tri = no; | |
1080 | break; | |
1081 | case def_random: | |
1244b41d PK |
1082 | cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2; |
1083 | sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); | |
dc7862e5 RZ |
1084 | break; |
1085 | default: | |
1086 | continue; | |
1087 | } | |
184832c9 | 1088 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1089 | sym->flags |= SYMBOL_DEF_USER; |
1090 | break; | |
1091 | default: | |
1092 | break; | |
1093 | } | |
1094 | ||
1095 | } | |
1096 | ||
ce97e13e | 1097 | sym_clear_all_valid(); |
dc7862e5 | 1098 | |
184832c9 SR |
1099 | /* |
1100 | * We have different type of choice blocks. | |
579fb8e7 | 1101 | * If curr.tri equals to mod then we can select several |
184832c9 SR |
1102 | * choice symbols in one block. |
1103 | * In this case we do nothing. | |
579fb8e7 | 1104 | * If curr.tri equals yes then only one symbol can be |
184832c9 SR |
1105 | * selected in a choice block and we set it to yes, |
1106 | * and the rest to no. | |
1107 | */ | |
dc7862e5 RZ |
1108 | for_all_symbols(i, csym) { |
1109 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1110 | continue; | |
1111 | ||
1112 | sym_calc_value(csym); | |
a64b44ea SR |
1113 | if (mode == def_random) |
1114 | randomize_choice_values(csym); | |
1115 | else | |
1116 | set_all_choice_values(csym); | |
dc7862e5 RZ |
1117 | } |
1118 | } |