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 | ||
1a7a8c6f CS |
185 | #define LINE_GROWTH 16 |
186 | static int add_byte(int c, char **lineptr, size_t slen, size_t *n) | |
187 | { | |
188 | char *nline; | |
189 | size_t new_size = slen + 1; | |
190 | if (new_size > *n) { | |
191 | new_size += LINE_GROWTH - 1; | |
192 | new_size *= 2; | |
193 | nline = realloc(*lineptr, new_size); | |
194 | if (!nline) | |
195 | return -1; | |
196 | ||
197 | *lineptr = nline; | |
198 | *n = new_size; | |
199 | } | |
200 | ||
201 | (*lineptr)[slen] = c; | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream) | |
207 | { | |
208 | char *line = *lineptr; | |
209 | size_t slen = 0; | |
210 | ||
211 | for (;;) { | |
212 | int c = getc(stream); | |
213 | ||
214 | switch (c) { | |
215 | case '\n': | |
216 | if (add_byte(c, &line, slen, n) < 0) | |
217 | goto e_out; | |
218 | slen++; | |
219 | /* fall through */ | |
220 | case EOF: | |
221 | if (add_byte('\0', &line, slen, n) < 0) | |
222 | goto e_out; | |
223 | *lineptr = line; | |
224 | if (slen == 0) | |
225 | return -1; | |
226 | return slen; | |
227 | default: | |
228 | if (add_byte(c, &line, slen, n) < 0) | |
229 | goto e_out; | |
230 | slen++; | |
231 | } | |
232 | } | |
233 | ||
234 | e_out: | |
235 | line[slen-1] = '\0'; | |
236 | *lineptr = line; | |
237 | return -1; | |
238 | } | |
239 | ||
669bfad9 | 240 | int conf_read_simple(const char *name, int def) |
1da177e4 LT |
241 | { |
242 | FILE *in = NULL; | |
1a7a8c6f CS |
243 | char *line = NULL; |
244 | size_t line_asize = 0; | |
1da177e4 | 245 | char *p, *p2; |
1da177e4 | 246 | struct symbol *sym; |
669bfad9 | 247 | int i, def_flags; |
1da177e4 LT |
248 | |
249 | if (name) { | |
250 | in = zconf_fopen(name); | |
251 | } else { | |
face4374 RZ |
252 | struct property *prop; |
253 | ||
14cdd3c4 | 254 | name = conf_get_configname(); |
ddc97cac RZ |
255 | in = zconf_fopen(name); |
256 | if (in) | |
257 | goto load; | |
bfc10001 | 258 | sym_add_change_count(1); |
ac1ffde1 UM |
259 | if (!sym_defconfig_list) { |
260 | if (modules_sym) | |
261 | sym_calc_value(modules_sym); | |
face4374 | 262 | return 1; |
ac1ffde1 | 263 | } |
face4374 RZ |
264 | |
265 | for_all_defaults(sym_defconfig_list, prop) { | |
266 | if (expr_calc_value(prop->visible.expr) == no || | |
267 | prop->expr->type != E_SYMBOL) | |
268 | continue; | |
269 | name = conf_expand_value(prop->expr->left.sym->name); | |
1da177e4 LT |
270 | in = zconf_fopen(name); |
271 | if (in) { | |
42368c37 MM |
272 | conf_message(_("using defaults found in %s"), |
273 | name); | |
ddc97cac | 274 | goto load; |
1da177e4 LT |
275 | } |
276 | } | |
277 | } | |
1da177e4 LT |
278 | if (!in) |
279 | return 1; | |
280 | ||
ddc97cac | 281 | load: |
c1a0f5e3 RZ |
282 | conf_filename = name; |
283 | conf_lineno = 0; | |
284 | conf_warnings = 0; | |
285 | conf_unsaved = 0; | |
286 | ||
669bfad9 | 287 | def_flags = SYMBOL_DEF << def; |
1da177e4 | 288 | for_all_symbols(i, sym) { |
669bfad9 RZ |
289 | sym->flags |= SYMBOL_CHANGED; |
290 | sym->flags &= ~(def_flags|SYMBOL_VALID); | |
1da177e4 LT |
291 | switch (sym->type) { |
292 | case S_INT: | |
293 | case S_HEX: | |
294 | case S_STRING: | |
669bfad9 RZ |
295 | if (sym->def[def].val) |
296 | free(sym->def[def].val); | |
d8fc3200 | 297 | /* fall through */ |
1da177e4 | 298 | default: |
669bfad9 RZ |
299 | sym->def[def].val = NULL; |
300 | sym->def[def].tri = no; | |
1da177e4 LT |
301 | } |
302 | } | |
303 | ||
1a7a8c6f | 304 | while (compat_getline(&line, &line_asize, in) != -1) { |
c1a0f5e3 | 305 | conf_lineno++; |
1da177e4 | 306 | sym = NULL; |
8baefd30 | 307 | if (line[0] == '#') { |
ffb5957b | 308 | if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) |
1da177e4 | 309 | continue; |
ffb5957b | 310 | p = strchr(line + 2 + strlen(CONFIG_), ' '); |
1da177e4 LT |
311 | if (!p) |
312 | continue; | |
313 | *p++ = 0; | |
314 | if (strncmp(p, "is not set", 10)) | |
315 | continue; | |
669bfad9 | 316 | if (def == S_DEF_USER) { |
ffb5957b | 317 | sym = sym_find(line + 2 + strlen(CONFIG_)); |
661b0680 | 318 | if (!sym) { |
319 | sym_add_change_count(1); | |
8bea7548 | 320 | goto setsym; |
661b0680 | 321 | } |
669bfad9 | 322 | } else { |
ffb5957b | 323 | sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); |
669bfad9 RZ |
324 | if (sym->type == S_UNKNOWN) |
325 | sym->type = S_BOOLEAN; | |
326 | } | |
327 | if (sym->flags & def_flags) { | |
d84876f9 | 328 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 LT |
329 | } |
330 | switch (sym->type) { | |
331 | case S_BOOLEAN: | |
332 | case S_TRISTATE: | |
669bfad9 RZ |
333 | sym->def[def].tri = no; |
334 | sym->flags |= def_flags; | |
1da177e4 LT |
335 | break; |
336 | default: | |
337 | ; | |
338 | } | |
ffb5957b AL |
339 | } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { |
340 | p = strchr(line + strlen(CONFIG_), '='); | |
1da177e4 LT |
341 | if (!p) |
342 | continue; | |
343 | *p++ = 0; | |
344 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
345 | if (p2) { |
346 | *p2-- = 0; | |
347 | if (*p2 == '\r') | |
348 | *p2 = 0; | |
349 | } | |
669bfad9 | 350 | if (def == S_DEF_USER) { |
ffb5957b | 351 | sym = sym_find(line + strlen(CONFIG_)); |
661b0680 | 352 | if (!sym) { |
353 | sym_add_change_count(1); | |
8bea7548 | 354 | goto setsym; |
661b0680 | 355 | } |
669bfad9 | 356 | } else { |
ffb5957b | 357 | sym = sym_lookup(line + strlen(CONFIG_), 0); |
669bfad9 RZ |
358 | if (sym->type == S_UNKNOWN) |
359 | sym->type = S_OTHER; | |
360 | } | |
361 | if (sym->flags & def_flags) { | |
d84876f9 | 362 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 363 | } |
9c900a9c SR |
364 | if (conf_set_sym_val(sym, def, def_flags, p)) |
365 | continue; | |
8baefd30 AL |
366 | } else { |
367 | if (line[0] != '\r' && line[0] != '\n') | |
368 | conf_warning("unexpected data"); | |
1da177e4 LT |
369 | continue; |
370 | } | |
8bea7548 | 371 | setsym: |
1da177e4 LT |
372 | if (sym && sym_is_choice_value(sym)) { |
373 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 374 | switch (sym->def[def].tri) { |
1da177e4 LT |
375 | case no: |
376 | break; | |
377 | case mod: | |
669bfad9 | 378 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 379 | conf_warning("%s creates inconsistent choice state", sym->name); |
c1a0f5e3 | 380 | } |
1da177e4 LT |
381 | break; |
382 | case yes: | |
d84876f9 JE |
383 | if (cs->def[def].tri != no) |
384 | conf_warning("override: %s changes choice state", sym->name); | |
385 | cs->def[def].val = sym; | |
422c809f | 386 | cs->flags |= def_flags; |
1da177e4 LT |
387 | break; |
388 | } | |
d6ee3576 | 389 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
390 | } |
391 | } | |
1a7a8c6f | 392 | free(line); |
1da177e4 LT |
393 | fclose(in); |
394 | ||
395 | if (modules_sym) | |
396 | sym_calc_value(modules_sym); | |
90389160 RZ |
397 | return 0; |
398 | } | |
399 | ||
400 | int conf_read(const char *name) | |
401 | { | |
5d09598d AL |
402 | struct symbol *sym; |
403 | int i; | |
90389160 | 404 | |
bfc10001 | 405 | sym_set_change_count(0); |
ddc97cac | 406 | |
669bfad9 | 407 | if (conf_read_simple(name, S_DEF_USER)) |
90389160 RZ |
408 | return 1; |
409 | ||
1da177e4 LT |
410 | for_all_symbols(i, sym) { |
411 | sym_calc_value(sym); | |
c1a0f5e3 | 412 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
5d09598d | 413 | continue; |
c1a0f5e3 RZ |
414 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { |
415 | /* check that calculated value agrees with saved value */ | |
416 | switch (sym->type) { | |
417 | case S_BOOLEAN: | |
418 | case S_TRISTATE: | |
0c1822e6 | 419 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
420 | break; |
421 | if (!sym_is_choice(sym)) | |
5d09598d | 422 | continue; |
d8fc3200 | 423 | /* fall through */ |
c1a0f5e3 | 424 | default: |
0c1822e6 | 425 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
5d09598d | 426 | continue; |
c1a0f5e3 RZ |
427 | break; |
428 | } | |
429 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
430 | /* no previous value and not saved */ | |
5d09598d | 431 | continue; |
c1a0f5e3 RZ |
432 | conf_unsaved++; |
433 | /* maybe print value in verbose mode... */ | |
d8982ba1 RZ |
434 | } |
435 | ||
436 | for_all_symbols(i, sym) { | |
1da177e4 | 437 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
438 | /* Reset values of generates values, so they'll appear |
439 | * as new, if they should become visible, but that | |
440 | * doesn't quite work if the Kconfig and the saved | |
441 | * configuration disagree. | |
442 | */ | |
443 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 444 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
445 | switch (sym->type) { |
446 | case S_STRING: | |
447 | case S_INT: | |
448 | case S_HEX: | |
d8982ba1 RZ |
449 | /* Reset a string value if it's out of range */ |
450 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
451 | break; | |
452 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
453 | conf_unsaved++; | |
454 | break; | |
1da177e4 LT |
455 | default: |
456 | break; | |
457 | } | |
458 | } | |
1da177e4 LT |
459 | } |
460 | ||
bfc10001 | 461 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
462 | |
463 | return 0; | |
464 | } | |
465 | ||
e54e692b AL |
466 | /* |
467 | * Kconfig configuration printer | |
468 | * | |
469 | * This printer is used when generating the resulting configuration after | |
470 | * kconfig invocation and `defconfig' files. Unset symbol might be omitted by | |
471 | * passing a non-NULL argument to the printer. | |
472 | * | |
473 | */ | |
474 | static void | |
475 | kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
476 | { | |
477 | ||
478 | switch (sym->type) { | |
479 | case S_BOOLEAN: | |
480 | case S_TRISTATE: | |
481 | if (*value == 'n') { | |
482 | bool skip_unset = (arg != NULL); | |
483 | ||
484 | if (!skip_unset) | |
485 | fprintf(fp, "# %s%s is not set\n", | |
486 | CONFIG_, sym->name); | |
487 | return; | |
488 | } | |
489 | break; | |
490 | default: | |
491 | break; | |
492 | } | |
493 | ||
494 | fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value); | |
495 | } | |
496 | ||
497 | static void | |
498 | kconfig_print_comment(FILE *fp, const char *value, void *arg) | |
49192f26 | 499 | { |
e54e692b AL |
500 | const char *p = value; |
501 | size_t l; | |
502 | ||
503 | for (;;) { | |
504 | l = strcspn(p, "\n"); | |
505 | fprintf(fp, "#"); | |
49192f26 | 506 | if (l) { |
e54e692b | 507 | fprintf(fp, " "); |
70cc01e7 | 508 | xfwrite(p, l, 1, fp); |
e54e692b | 509 | p += l; |
49192f26 | 510 | } |
e54e692b AL |
511 | fprintf(fp, "\n"); |
512 | if (*p++ == '\0') | |
49192f26 | 513 | break; |
49192f26 | 514 | } |
49192f26 SR |
515 | } |
516 | ||
e54e692b | 517 | static struct conf_printer kconfig_printer_cb = |
49192f26 | 518 | { |
e54e692b AL |
519 | .print_symbol = kconfig_print_symbol, |
520 | .print_comment = kconfig_print_comment, | |
521 | }; | |
522 | ||
523 | /* | |
524 | * Header printer | |
525 | * | |
526 | * This printer is used when generating the `include/generated/autoconf.h' file. | |
527 | */ | |
528 | static void | |
529 | header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
530 | { | |
49192f26 | 531 | |
0dce6310 | 532 | switch (sym->type) { |
49192f26 | 533 | case S_BOOLEAN: |
eb4cf5a6 AL |
534 | case S_TRISTATE: { |
535 | const char *suffix = ""; | |
536 | ||
e54e692b AL |
537 | switch (*value) { |
538 | case 'n': | |
2a11c8ea | 539 | break; |
e54e692b AL |
540 | case 'm': |
541 | suffix = "_MODULE"; | |
eb4cf5a6 | 542 | /* fall through */ |
e54e692b | 543 | default: |
2a11c8ea MM |
544 | fprintf(fp, "#define %s%s%s 1\n", |
545 | CONFIG_, sym->name, suffix); | |
49192f26 | 546 | } |
eb4cf5a6 AL |
547 | break; |
548 | } | |
549 | case S_HEX: { | |
550 | const char *prefix = ""; | |
551 | ||
552 | if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) | |
553 | prefix = "0x"; | |
554 | fprintf(fp, "#define %s%s %s%s\n", | |
555 | CONFIG_, sym->name, prefix, value); | |
556 | break; | |
557 | } | |
558 | case S_STRING: | |
559 | case S_INT: | |
560 | fprintf(fp, "#define %s%s %s\n", | |
561 | CONFIG_, sym->name, value); | |
49192f26 | 562 | break; |
e54e692b | 563 | default: |
49192f26 | 564 | break; |
e54e692b AL |
565 | } |
566 | ||
e54e692b AL |
567 | } |
568 | ||
569 | static void | |
570 | header_print_comment(FILE *fp, const char *value, void *arg) | |
571 | { | |
572 | const char *p = value; | |
573 | size_t l; | |
574 | ||
575 | fprintf(fp, "/*\n"); | |
576 | for (;;) { | |
577 | l = strcspn(p, "\n"); | |
578 | fprintf(fp, " *"); | |
579 | if (l) { | |
580 | fprintf(fp, " "); | |
70cc01e7 | 581 | xfwrite(p, l, 1, fp); |
e54e692b AL |
582 | p += l; |
583 | } | |
584 | fprintf(fp, "\n"); | |
585 | if (*p++ == '\0') | |
586 | break; | |
587 | } | |
588 | fprintf(fp, " */\n"); | |
589 | } | |
590 | ||
591 | static struct conf_printer header_printer_cb = | |
592 | { | |
593 | .print_symbol = header_print_symbol, | |
594 | .print_comment = header_print_comment, | |
595 | }; | |
596 | ||
e54e692b AL |
597 | /* |
598 | * Tristate printer | |
599 | * | |
600 | * This printer is used when generating the `include/config/tristate.conf' file. | |
601 | */ | |
602 | static void | |
603 | tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
604 | { | |
605 | ||
606 | if (sym->type == S_TRISTATE && *value != 'n') | |
607 | fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value)); | |
608 | } | |
609 | ||
610 | static struct conf_printer tristate_printer_cb = | |
611 | { | |
612 | .print_symbol = tristate_print_symbol, | |
613 | .print_comment = kconfig_print_comment, | |
614 | }; | |
615 | ||
616 | static void conf_write_symbol(FILE *fp, struct symbol *sym, | |
617 | struct conf_printer *printer, void *printer_arg) | |
618 | { | |
619 | const char *str; | |
620 | ||
621 | switch (sym->type) { | |
49192f26 SR |
622 | case S_OTHER: |
623 | case S_UNKNOWN: | |
624 | break; | |
e54e692b AL |
625 | case S_STRING: |
626 | str = sym_get_string_value(sym); | |
627 | str = sym_escape_string_value(str); | |
628 | printer->print_symbol(fp, sym, str, printer_arg); | |
629 | free((void *)str); | |
630 | break; | |
631 | default: | |
632 | str = sym_get_string_value(sym); | |
633 | printer->print_symbol(fp, sym, str, printer_arg); | |
49192f26 SR |
634 | } |
635 | } | |
636 | ||
e54e692b AL |
637 | static void |
638 | conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg) | |
639 | { | |
640 | char buf[256]; | |
641 | ||
642 | snprintf(buf, sizeof(buf), | |
643 | "\n" | |
644 | "Automatically generated file; DO NOT EDIT.\n" | |
645 | "%s\n", | |
646 | rootmenu.prompt->text); | |
647 | ||
648 | printer->print_comment(fp, buf, printer_arg); | |
649 | } | |
650 | ||
7cf3d73b SR |
651 | /* |
652 | * Write out a minimal config. | |
653 | * All values that has default values are skipped as this is redundant. | |
654 | */ | |
655 | int conf_write_defconfig(const char *filename) | |
656 | { | |
657 | struct symbol *sym; | |
658 | struct menu *menu; | |
659 | FILE *out; | |
660 | ||
661 | out = fopen(filename, "w"); | |
662 | if (!out) | |
663 | return 1; | |
664 | ||
665 | sym_clear_all_valid(); | |
666 | ||
667 | /* Traverse all menus to find all relevant symbols */ | |
668 | menu = rootmenu.list; | |
669 | ||
670 | while (menu != NULL) | |
671 | { | |
672 | sym = menu->sym; | |
673 | if (sym == NULL) { | |
674 | if (!menu_is_visible(menu)) | |
675 | goto next_menu; | |
676 | } else if (!sym_is_choice(sym)) { | |
677 | sym_calc_value(sym); | |
678 | if (!(sym->flags & SYMBOL_WRITE)) | |
679 | goto next_menu; | |
680 | sym->flags &= ~SYMBOL_WRITE; | |
681 | /* If we cannot change the symbol - skip */ | |
682 | if (!sym_is_changable(sym)) | |
683 | goto next_menu; | |
684 | /* If symbol equals to default value - skip */ | |
685 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
686 | goto next_menu; | |
687 | ||
688 | /* | |
689 | * If symbol is a choice value and equals to the | |
690 | * default for a choice - skip. | |
84062dd3 SR |
691 | * But only if value is bool and equal to "y" and |
692 | * choice is not "optional". | |
693 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
694 | */ |
695 | if (sym_is_choice_value(sym)) { | |
696 | struct symbol *cs; | |
697 | struct symbol *ds; | |
698 | ||
699 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
700 | ds = sym_choice_default(cs); | |
84062dd3 | 701 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
702 | if ((sym->type == S_BOOLEAN) && |
703 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
704 | goto next_menu; |
705 | } | |
706 | } | |
e54e692b | 707 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); |
7cf3d73b SR |
708 | } |
709 | next_menu: | |
710 | if (menu->list != NULL) { | |
711 | menu = menu->list; | |
712 | } | |
713 | else if (menu->next != NULL) { | |
714 | menu = menu->next; | |
715 | } else { | |
716 | while ((menu = menu->parent)) { | |
717 | if (menu->next != NULL) { | |
718 | menu = menu->next; | |
719 | break; | |
720 | } | |
721 | } | |
722 | } | |
723 | } | |
724 | fclose(out); | |
725 | return 0; | |
726 | } | |
727 | ||
1da177e4 LT |
728 | int conf_write(const char *name) |
729 | { | |
c955ccaf | 730 | FILE *out; |
1da177e4 LT |
731 | struct symbol *sym; |
732 | struct menu *menu; | |
733 | const char *basename; | |
1da177e4 | 734 | const char *str; |
1408b15b | 735 | char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; |
1da177e4 LT |
736 | char *env; |
737 | ||
738 | dirname[0] = 0; | |
739 | if (name && name[0]) { | |
740 | struct stat st; | |
741 | char *slash; | |
742 | ||
743 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { | |
744 | strcpy(dirname, name); | |
745 | strcat(dirname, "/"); | |
14cdd3c4 | 746 | basename = conf_get_configname(); |
1da177e4 LT |
747 | } else if ((slash = strrchr(name, '/'))) { |
748 | int size = slash - name + 1; | |
749 | memcpy(dirname, name, size); | |
750 | dirname[size] = 0; | |
751 | if (slash[1]) | |
752 | basename = slash + 1; | |
753 | else | |
14cdd3c4 | 754 | basename = conf_get_configname(); |
1da177e4 LT |
755 | } else |
756 | basename = name; | |
757 | } else | |
14cdd3c4 | 758 | basename = conf_get_configname(); |
1da177e4 | 759 | |
14cdd3c4 RZ |
760 | sprintf(newname, "%s%s", dirname, basename); |
761 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
762 | if (!env || !*env) { | |
763 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
764 | out = fopen(tmpname, "w"); | |
765 | } else { | |
766 | *tmpname = 0; | |
767 | out = fopen(newname, "w"); | |
768 | } | |
1da177e4 LT |
769 | if (!out) |
770 | return 1; | |
14cdd3c4 | 771 | |
e54e692b | 772 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
1da177e4 | 773 | |
b3214293 | 774 | if (!conf_get_changed()) |
1da177e4 LT |
775 | sym_clear_all_valid(); |
776 | ||
777 | menu = rootmenu.list; | |
778 | while (menu) { | |
779 | sym = menu->sym; | |
780 | if (!sym) { | |
781 | if (!menu_is_visible(menu)) | |
782 | goto next; | |
783 | str = menu_get_prompt(menu); | |
784 | fprintf(out, "\n" | |
785 | "#\n" | |
786 | "# %s\n" | |
787 | "#\n", str); | |
1da177e4 LT |
788 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
789 | sym_calc_value(sym); | |
790 | if (!(sym->flags & SYMBOL_WRITE)) | |
791 | goto next; | |
422c809f YM |
792 | if (sym_is_choice_value(sym) && !menu_is_visible(menu->parent)) |
793 | goto next; | |
1da177e4 | 794 | sym->flags &= ~SYMBOL_WRITE; |
e54e692b AL |
795 | |
796 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); | |
1da177e4 LT |
797 | } |
798 | ||
49192f26 | 799 | next: |
1da177e4 LT |
800 | if (menu->list) { |
801 | menu = menu->list; | |
802 | continue; | |
803 | } | |
804 | if (menu->next) | |
805 | menu = menu->next; | |
806 | else while ((menu = menu->parent)) { | |
807 | if (menu->next) { | |
808 | menu = menu->next; | |
809 | break; | |
810 | } | |
811 | } | |
812 | } | |
813 | fclose(out); | |
14cdd3c4 RZ |
814 | |
815 | if (*tmpname) { | |
9a3d0fe8 | 816 | strcat(dirname, basename); |
14cdd3c4 RZ |
817 | strcat(dirname, ".old"); |
818 | rename(newname, dirname); | |
819 | if (rename(tmpname, newname)) | |
820 | return 1; | |
1da177e4 | 821 | } |
1da177e4 | 822 | |
42368c37 | 823 | conf_message(_("configuration written to %s"), newname); |
ddc97cac | 824 | |
bfc10001 | 825 | sym_set_change_count(0); |
1da177e4 LT |
826 | |
827 | return 0; | |
828 | } | |
c955ccaf | 829 | |
4356f489 | 830 | static int conf_split_config(void) |
2e3646e5 | 831 | { |
12122f62 | 832 | const char *name; |
1408b15b | 833 | char path[PATH_MAX+1]; |
2e3646e5 RZ |
834 | char *s, *d, c; |
835 | struct symbol *sym; | |
836 | struct stat sb; | |
837 | int res, i, fd; | |
838 | ||
12122f62 | 839 | name = conf_get_autoconfig_name(); |
2e3646e5 RZ |
840 | conf_read_simple(name, S_DEF_AUTO); |
841 | ||
842 | if (chdir("include/config")) | |
843 | return 1; | |
844 | ||
845 | res = 0; | |
846 | for_all_symbols(i, sym) { | |
847 | sym_calc_value(sym); | |
848 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) | |
849 | continue; | |
850 | if (sym->flags & SYMBOL_WRITE) { | |
851 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
852 | /* | |
853 | * symbol has old and new value, | |
854 | * so compare them... | |
855 | */ | |
856 | switch (sym->type) { | |
857 | case S_BOOLEAN: | |
858 | case S_TRISTATE: | |
859 | if (sym_get_tristate_value(sym) == | |
860 | sym->def[S_DEF_AUTO].tri) | |
861 | continue; | |
862 | break; | |
863 | case S_STRING: | |
864 | case S_HEX: | |
865 | case S_INT: | |
866 | if (!strcmp(sym_get_string_value(sym), | |
867 | sym->def[S_DEF_AUTO].val)) | |
868 | continue; | |
869 | break; | |
870 | default: | |
871 | break; | |
872 | } | |
873 | } else { | |
874 | /* | |
875 | * If there is no old value, only 'no' (unset) | |
876 | * is allowed as new value. | |
877 | */ | |
878 | switch (sym->type) { | |
879 | case S_BOOLEAN: | |
880 | case S_TRISTATE: | |
881 | if (sym_get_tristate_value(sym) == no) | |
882 | continue; | |
883 | break; | |
884 | default: | |
885 | break; | |
886 | } | |
887 | } | |
888 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
889 | /* There is neither an old nor a new value. */ | |
890 | continue; | |
891 | /* else | |
892 | * There is an old value, but no new value ('no' (unset) | |
893 | * isn't saved in auto.conf, so the old value is always | |
894 | * different from 'no'). | |
895 | */ | |
896 | ||
897 | /* Replace all '_' and append ".h" */ | |
898 | s = sym->name; | |
899 | d = path; | |
900 | while ((c = *s++)) { | |
901 | c = tolower(c); | |
902 | *d++ = (c == '_') ? '/' : c; | |
903 | } | |
904 | strcpy(d, ".h"); | |
905 | ||
906 | /* Assume directory path already exists. */ | |
907 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
908 | if (fd == -1) { | |
909 | if (errno != ENOENT) { | |
910 | res = 1; | |
911 | break; | |
912 | } | |
913 | /* | |
914 | * Create directory components, | |
915 | * unless they exist already. | |
916 | */ | |
917 | d = path; | |
918 | while ((d = strchr(d, '/'))) { | |
919 | *d = 0; | |
920 | if (stat(path, &sb) && mkdir(path, 0755)) { | |
921 | res = 1; | |
922 | goto out; | |
923 | } | |
924 | *d++ = '/'; | |
925 | } | |
926 | /* Try it again. */ | |
927 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
928 | if (fd == -1) { | |
929 | res = 1; | |
930 | break; | |
931 | } | |
932 | } | |
933 | close(fd); | |
934 | } | |
935 | out: | |
936 | if (chdir("../..")) | |
937 | return 1; | |
938 | ||
939 | return res; | |
940 | } | |
941 | ||
c955ccaf RZ |
942 | int conf_write_autoconf(void) |
943 | { | |
944 | struct symbol *sym; | |
12122f62 | 945 | const char *name; |
bc081dd6 | 946 | FILE *out, *tristate, *out_h; |
49192f26 | 947 | int i; |
c955ccaf | 948 | |
2e3646e5 RZ |
949 | sym_clear_all_valid(); |
950 | ||
c955ccaf RZ |
951 | file_write_dep("include/config/auto.conf.cmd"); |
952 | ||
2e3646e5 RZ |
953 | if (conf_split_config()) |
954 | return 1; | |
955 | ||
c955ccaf RZ |
956 | out = fopen(".tmpconfig", "w"); |
957 | if (!out) | |
958 | return 1; | |
959 | ||
bc081dd6 MM |
960 | tristate = fopen(".tmpconfig_tristate", "w"); |
961 | if (!tristate) { | |
962 | fclose(out); | |
963 | return 1; | |
964 | } | |
965 | ||
c955ccaf RZ |
966 | out_h = fopen(".tmpconfig.h", "w"); |
967 | if (!out_h) { | |
968 | fclose(out); | |
bc081dd6 | 969 | fclose(tristate); |
c955ccaf RZ |
970 | return 1; |
971 | } | |
972 | ||
e54e692b AL |
973 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
974 | ||
975 | conf_write_heading(tristate, &tristate_printer_cb, NULL); | |
976 | ||
977 | conf_write_heading(out_h, &header_printer_cb, NULL); | |
c955ccaf | 978 | |
c955ccaf RZ |
979 | for_all_symbols(i, sym) { |
980 | sym_calc_value(sym); | |
a9596135 | 981 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) |
c955ccaf | 982 | continue; |
49192f26 | 983 | |
a9596135 | 984 | /* write symbol to auto.conf, tristate and header files */ |
e54e692b | 985 | conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); |
49192f26 | 986 | |
e54e692b AL |
987 | conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); |
988 | ||
989 | conf_write_symbol(out_h, sym, &header_printer_cb, NULL); | |
c955ccaf RZ |
990 | } |
991 | fclose(out); | |
bc081dd6 | 992 | fclose(tristate); |
c955ccaf RZ |
993 | fclose(out_h); |
994 | ||
995 | name = getenv("KCONFIG_AUTOHEADER"); | |
996 | if (!name) | |
264a2683 | 997 | name = "include/generated/autoconf.h"; |
c955ccaf RZ |
998 | if (rename(".tmpconfig.h", name)) |
999 | return 1; | |
bc081dd6 MM |
1000 | name = getenv("KCONFIG_TRISTATE"); |
1001 | if (!name) | |
1002 | name = "include/config/tristate.conf"; | |
1003 | if (rename(".tmpconfig_tristate", name)) | |
1004 | return 1; | |
12122f62 | 1005 | name = conf_get_autoconfig_name(); |
c955ccaf RZ |
1006 | /* |
1007 | * This must be the last step, kbuild has a dependency on auto.conf | |
1008 | * and this marks the successful completion of the previous steps. | |
1009 | */ | |
1010 | if (rename(".tmpconfig", name)) | |
1011 | return 1; | |
1012 | ||
1013 | return 0; | |
1014 | } | |
b3214293 | 1015 | |
bfc10001 | 1016 | static int sym_change_count; |
3b354c55 | 1017 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
1018 | |
1019 | void sym_set_change_count(int count) | |
1020 | { | |
3b354c55 | 1021 | int _sym_change_count = sym_change_count; |
bfc10001 | 1022 | sym_change_count = count; |
3b354c55 KW |
1023 | if (conf_changed_callback && |
1024 | (bool)_sym_change_count != (bool)count) | |
1025 | conf_changed_callback(); | |
bfc10001 KW |
1026 | } |
1027 | ||
1028 | void sym_add_change_count(int count) | |
1029 | { | |
3b354c55 | 1030 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
1031 | } |
1032 | ||
b3214293 KW |
1033 | bool conf_get_changed(void) |
1034 | { | |
1035 | return sym_change_count; | |
1036 | } | |
3b354c55 KW |
1037 | |
1038 | void conf_set_changed_callback(void (*fn)(void)) | |
1039 | { | |
1040 | conf_changed_callback = fn; | |
1041 | } | |
dc7862e5 | 1042 | |
a64b44ea SR |
1043 | static void randomize_choice_values(struct symbol *csym) |
1044 | { | |
1045 | struct property *prop; | |
1046 | struct symbol *sym; | |
1047 | struct expr *e; | |
1048 | int cnt, def; | |
dc7862e5 | 1049 | |
a64b44ea | 1050 | /* |
579fb8e7 | 1051 | * If choice is mod then we may have more items selected |
a64b44ea SR |
1052 | * and if no then no-one. |
1053 | * In both cases stop. | |
1054 | */ | |
1055 | if (csym->curr.tri != yes) | |
1056 | return; | |
1057 | ||
1058 | prop = sym_get_choice_prop(csym); | |
1059 | ||
1060 | /* count entries in choice block */ | |
1061 | cnt = 0; | |
1062 | expr_list_for_each_sym(prop->expr, e, sym) | |
1063 | cnt++; | |
1064 | ||
1065 | /* | |
1066 | * find a random value and set it to yes, | |
1067 | * set the rest to no so we have only one set | |
1068 | */ | |
1069 | def = (rand() % cnt); | |
1070 | ||
1071 | cnt = 0; | |
1072 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1073 | if (def == cnt++) { | |
1074 | sym->def[S_DEF_USER].tri = yes; | |
1075 | csym->def[S_DEF_USER].val = sym; | |
1076 | } | |
1077 | else { | |
1078 | sym->def[S_DEF_USER].tri = no; | |
1079 | } | |
422c809f | 1080 | sym->flags &= ~(SYMBOL_VALID); |
a64b44ea SR |
1081 | } |
1082 | csym->flags |= SYMBOL_DEF_USER; | |
1083 | /* clear VALID to get value calculated */ | |
1084 | csym->flags &= ~(SYMBOL_VALID); | |
1085 | } | |
1086 | ||
1087 | static void set_all_choice_values(struct symbol *csym) | |
dc7862e5 | 1088 | { |
dc7862e5 | 1089 | struct property *prop; |
a64b44ea | 1090 | struct symbol *sym; |
dc7862e5 | 1091 | struct expr *e; |
a64b44ea SR |
1092 | |
1093 | prop = sym_get_choice_prop(csym); | |
1094 | ||
1095 | /* | |
1096 | * Set all non-assinged choice values to no | |
1097 | */ | |
1098 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1099 | if (!sym_has_value(sym)) | |
1100 | sym->def[S_DEF_USER].tri = no; | |
1101 | } | |
1102 | csym->flags |= SYMBOL_DEF_USER; | |
1103 | /* clear VALID to get value calculated */ | |
1104 | csym->flags &= ~(SYMBOL_VALID); | |
1105 | } | |
1106 | ||
1107 | void conf_set_all_new_symbols(enum conf_def_mode mode) | |
1108 | { | |
1109 | struct symbol *sym, *csym; | |
1110 | int i, cnt; | |
dc7862e5 RZ |
1111 | |
1112 | for_all_symbols(i, sym) { | |
cfa98f2e | 1113 | if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID)) |
dc7862e5 RZ |
1114 | continue; |
1115 | switch (sym_get_type(sym)) { | |
1116 | case S_BOOLEAN: | |
1117 | case S_TRISTATE: | |
1118 | switch (mode) { | |
1119 | case def_yes: | |
1120 | sym->def[S_DEF_USER].tri = yes; | |
1121 | break; | |
1122 | case def_mod: | |
1123 | sym->def[S_DEF_USER].tri = mod; | |
1124 | break; | |
1125 | case def_no: | |
1126 | sym->def[S_DEF_USER].tri = no; | |
1127 | break; | |
1128 | case def_random: | |
61fa0e17 | 1129 | cnt = sym->type == S_TRISTATE ? 3 : 2; |
1244b41d | 1130 | sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); |
dc7862e5 RZ |
1131 | break; |
1132 | default: | |
1133 | continue; | |
1134 | } | |
184832c9 | 1135 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1136 | sym->flags |= SYMBOL_DEF_USER; |
1137 | break; | |
1138 | default: | |
1139 | break; | |
1140 | } | |
1141 | ||
1142 | } | |
1143 | ||
ce97e13e | 1144 | sym_clear_all_valid(); |
dc7862e5 | 1145 | |
184832c9 SR |
1146 | /* |
1147 | * We have different type of choice blocks. | |
579fb8e7 | 1148 | * If curr.tri equals to mod then we can select several |
184832c9 SR |
1149 | * choice symbols in one block. |
1150 | * In this case we do nothing. | |
579fb8e7 | 1151 | * If curr.tri equals yes then only one symbol can be |
184832c9 SR |
1152 | * selected in a choice block and we set it to yes, |
1153 | * and the rest to no. | |
1154 | */ | |
dc7862e5 RZ |
1155 | for_all_symbols(i, csym) { |
1156 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1157 | continue; | |
1158 | ||
1159 | sym_calc_value(csym); | |
a64b44ea SR |
1160 | if (mode == def_random) |
1161 | randomize_choice_values(csym); | |
1162 | else | |
1163 | set_all_choice_values(csym); | |
dc7862e5 RZ |
1164 | } |
1165 | } |