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