Commit | Line | Data |
---|---|---|
0c874100 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> | |
1da177e4 LT |
4 | */ |
5 | ||
6 | #include <sys/stat.h> | |
7 | #include <ctype.h> | |
94bedeca | 8 | #include <errno.h> |
2e3646e5 | 9 | #include <fcntl.h> |
558e78e3 | 10 | #include <limits.h> |
10a4b277 | 11 | #include <stdarg.h> |
1da177e4 LT |
12 | #include <stdio.h> |
13 | #include <stdlib.h> | |
14 | #include <string.h> | |
15 | #include <time.h> | |
16 | #include <unistd.h> | |
17 | ||
1da177e4 LT |
18 | #include "lkc.h" |
19 | ||
0608182a MY |
20 | /* return true if 'path' exists, false otherwise */ |
21 | static bool is_present(const char *path) | |
22 | { | |
23 | struct stat st; | |
24 | ||
25 | return !stat(path, &st); | |
26 | } | |
27 | ||
28 | /* return true if 'path' exists and it is a directory, false otherwise */ | |
29 | static bool is_dir(const char *path) | |
30 | { | |
31 | struct stat st; | |
32 | ||
33 | if (stat(path, &st)) | |
34 | return 0; | |
35 | ||
36 | return S_ISDIR(st.st_mode); | |
37 | } | |
38 | ||
39 | /* | |
40 | * Create the parent directory of the given path. | |
41 | * | |
42 | * For example, if 'include/config/auto.conf' is given, create 'include/config'. | |
43 | */ | |
44 | static int make_parent_dir(const char *path) | |
45 | { | |
46 | char tmp[PATH_MAX + 1]; | |
47 | char *p; | |
48 | ||
49 | strncpy(tmp, path, sizeof(tmp)); | |
50 | tmp[sizeof(tmp) - 1] = 0; | |
51 | ||
52 | /* Remove the base name. Just return if nothing is left */ | |
53 | p = strrchr(tmp, '/'); | |
54 | if (!p) | |
55 | return 0; | |
56 | *(p + 1) = 0; | |
57 | ||
58 | /* Just in case it is an absolute path */ | |
59 | p = tmp; | |
60 | while (*p == '/') | |
61 | p++; | |
62 | ||
63 | while ((p = strchr(p, '/'))) { | |
64 | *p = 0; | |
65 | ||
66 | /* skip if the directory exists */ | |
67 | if (!is_dir(tmp) && mkdir(tmp, 0755)) | |
68 | return -1; | |
69 | ||
70 | *p = '/'; | |
71 | while (*p == '/') | |
72 | p++; | |
73 | } | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
1508fec8 MY |
78 | static char depfile_path[PATH_MAX]; |
79 | static size_t depfile_prefix_len; | |
80 | ||
81 | /* touch depfile for symbol 'name' */ | |
82 | static int conf_touch_dep(const char *name) | |
83 | { | |
84 | int fd, ret; | |
85 | const char *s; | |
86 | char *d, c; | |
87 | ||
88 | /* check overflow: prefix + name + ".h" + '\0' must fit in buffer. */ | |
89 | if (depfile_prefix_len + strlen(name) + 3 > sizeof(depfile_path)) | |
90 | return -1; | |
91 | ||
92 | d = depfile_path + depfile_prefix_len; | |
93 | s = name; | |
94 | ||
95 | while ((c = *s++)) | |
96 | *d++ = (c == '_') ? '/' : tolower(c); | |
97 | strcpy(d, ".h"); | |
98 | ||
99 | /* Assume directory path already exists. */ | |
100 | fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
101 | if (fd == -1) { | |
102 | if (errno != ENOENT) | |
103 | return -1; | |
104 | ||
105 | ret = make_parent_dir(depfile_path); | |
106 | if (ret) | |
107 | return ret; | |
108 | ||
109 | /* Try it again. */ | |
110 | fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
111 | if (fd == -1) | |
112 | return -1; | |
113 | } | |
114 | close(fd); | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
ad8d40cd MM |
119 | struct conf_printer { |
120 | void (*print_symbol)(FILE *, struct symbol *, const char *, void *); | |
121 | void (*print_comment)(FILE *, const char *, void *); | |
122 | }; | |
123 | ||
c1a0f5e3 RZ |
124 | static void conf_warning(const char *fmt, ...) |
125 | __attribute__ ((format (printf, 1, 2))); | |
126 | ||
42368c37 MM |
127 | static void conf_message(const char *fmt, ...) |
128 | __attribute__ ((format (printf, 1, 2))); | |
129 | ||
c1a0f5e3 | 130 | static const char *conf_filename; |
84dd95d4 | 131 | static int conf_lineno, conf_warnings; |
c1a0f5e3 | 132 | |
104daea1 | 133 | const char conf_defname[] = "arch/$(ARCH)/defconfig"; |
1da177e4 | 134 | |
c1a0f5e3 RZ |
135 | static void conf_warning(const char *fmt, ...) |
136 | { | |
137 | va_list ap; | |
138 | va_start(ap, fmt); | |
139 | fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); | |
140 | vfprintf(stderr, fmt, ap); | |
141 | fprintf(stderr, "\n"); | |
142 | va_end(ap); | |
143 | conf_warnings++; | |
144 | } | |
145 | ||
5accd7f3 | 146 | static void conf_default_message_callback(const char *s) |
42368c37 MM |
147 | { |
148 | printf("#\n# "); | |
5accd7f3 | 149 | printf("%s", s); |
42368c37 MM |
150 | printf("\n#\n"); |
151 | } | |
152 | ||
5accd7f3 | 153 | static void (*conf_message_callback)(const char *s) = |
42368c37 | 154 | conf_default_message_callback; |
5accd7f3 | 155 | void conf_set_message_callback(void (*fn)(const char *s)) |
42368c37 MM |
156 | { |
157 | conf_message_callback = fn; | |
158 | } | |
159 | ||
160 | static void conf_message(const char *fmt, ...) | |
161 | { | |
162 | va_list ap; | |
5accd7f3 MY |
163 | char buf[4096]; |
164 | ||
165 | if (!conf_message_callback) | |
166 | return; | |
42368c37 MM |
167 | |
168 | va_start(ap, fmt); | |
5accd7f3 MY |
169 | |
170 | vsnprintf(buf, sizeof(buf), fmt, ap); | |
171 | conf_message_callback(buf); | |
b6a2ab2c | 172 | va_end(ap); |
42368c37 MM |
173 | } |
174 | ||
14cdd3c4 RZ |
175 | const char *conf_get_configname(void) |
176 | { | |
177 | char *name = getenv("KCONFIG_CONFIG"); | |
178 | ||
179 | return name ? name : ".config"; | |
180 | } | |
181 | ||
12122f62 MH |
182 | const char *conf_get_autoconfig_name(void) |
183 | { | |
184 | char *name = getenv("KCONFIG_AUTOCONFIG"); | |
185 | ||
186 | return name ? name : "include/config/auto.conf"; | |
187 | } | |
188 | ||
1da177e4 LT |
189 | char *conf_get_default_confname(void) |
190 | { | |
1da177e4 LT |
191 | static char fullname[PATH_MAX+1]; |
192 | char *env, *name; | |
193 | ||
104daea1 | 194 | name = expand_string(conf_defname); |
1da177e4 LT |
195 | env = getenv(SRCTREE); |
196 | if (env) { | |
197 | sprintf(fullname, "%s/%s", env, name); | |
0608182a | 198 | if (is_present(fullname)) |
1da177e4 LT |
199 | return fullname; |
200 | } | |
201 | return name; | |
202 | } | |
203 | ||
9c900a9c SR |
204 | static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) |
205 | { | |
206 | char *p2; | |
207 | ||
208 | switch (sym->type) { | |
209 | case S_TRISTATE: | |
210 | if (p[0] == 'm') { | |
211 | sym->def[def].tri = mod; | |
212 | sym->flags |= def_flags; | |
213 | break; | |
214 | } | |
d8fc3200 | 215 | /* fall through */ |
9c900a9c SR |
216 | case S_BOOLEAN: |
217 | if (p[0] == 'y') { | |
218 | sym->def[def].tri = yes; | |
219 | sym->flags |= def_flags; | |
220 | break; | |
221 | } | |
222 | if (p[0] == 'n') { | |
223 | sym->def[def].tri = no; | |
224 | sym->flags |= def_flags; | |
225 | break; | |
226 | } | |
04b19b77 YM |
227 | if (def != S_DEF_AUTO) |
228 | conf_warning("symbol value '%s' invalid for %s", | |
229 | p, sym->name); | |
75f1468b | 230 | return 1; |
9c900a9c SR |
231 | case S_STRING: |
232 | if (*p++ != '"') | |
233 | break; | |
234 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { | |
235 | if (*p2 == '"') { | |
236 | *p2 = 0; | |
237 | break; | |
238 | } | |
239 | memmove(p2, p2 + 1, strlen(p2)); | |
240 | } | |
241 | if (!p2) { | |
04b19b77 YM |
242 | if (def != S_DEF_AUTO) |
243 | conf_warning("invalid string found"); | |
9c900a9c SR |
244 | return 1; |
245 | } | |
d8fc3200 | 246 | /* fall through */ |
9c900a9c SR |
247 | case S_INT: |
248 | case S_HEX: | |
9c900a9c | 249 | if (sym_string_valid(sym, p)) { |
cd81fc82 | 250 | sym->def[def].val = xstrdup(p); |
9c900a9c SR |
251 | sym->flags |= def_flags; |
252 | } else { | |
04b19b77 YM |
253 | if (def != S_DEF_AUTO) |
254 | conf_warning("symbol value '%s' invalid for %s", | |
255 | p, sym->name); | |
9c900a9c SR |
256 | return 1; |
257 | } | |
258 | break; | |
259 | default: | |
260 | ; | |
261 | } | |
262 | return 0; | |
263 | } | |
264 | ||
1a7a8c6f CS |
265 | #define LINE_GROWTH 16 |
266 | static int add_byte(int c, char **lineptr, size_t slen, size_t *n) | |
267 | { | |
268 | char *nline; | |
269 | size_t new_size = slen + 1; | |
270 | if (new_size > *n) { | |
271 | new_size += LINE_GROWTH - 1; | |
272 | new_size *= 2; | |
d717f24d | 273 | nline = xrealloc(*lineptr, new_size); |
1a7a8c6f CS |
274 | if (!nline) |
275 | return -1; | |
276 | ||
277 | *lineptr = nline; | |
278 | *n = new_size; | |
279 | } | |
280 | ||
281 | (*lineptr)[slen] = c; | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream) | |
287 | { | |
288 | char *line = *lineptr; | |
289 | size_t slen = 0; | |
290 | ||
291 | for (;;) { | |
292 | int c = getc(stream); | |
293 | ||
294 | switch (c) { | |
295 | case '\n': | |
296 | if (add_byte(c, &line, slen, n) < 0) | |
297 | goto e_out; | |
298 | slen++; | |
299 | /* fall through */ | |
300 | case EOF: | |
301 | if (add_byte('\0', &line, slen, n) < 0) | |
302 | goto e_out; | |
303 | *lineptr = line; | |
304 | if (slen == 0) | |
305 | return -1; | |
306 | return slen; | |
307 | default: | |
308 | if (add_byte(c, &line, slen, n) < 0) | |
309 | goto e_out; | |
310 | slen++; | |
311 | } | |
312 | } | |
313 | ||
314 | e_out: | |
315 | line[slen-1] = '\0'; | |
316 | *lineptr = line; | |
317 | return -1; | |
318 | } | |
319 | ||
669bfad9 | 320 | int conf_read_simple(const char *name, int def) |
1da177e4 LT |
321 | { |
322 | FILE *in = NULL; | |
1a7a8c6f CS |
323 | char *line = NULL; |
324 | size_t line_asize = 0; | |
1da177e4 | 325 | char *p, *p2; |
1da177e4 | 326 | struct symbol *sym; |
669bfad9 | 327 | int i, def_flags; |
1da177e4 LT |
328 | |
329 | if (name) { | |
330 | in = zconf_fopen(name); | |
331 | } else { | |
face4374 RZ |
332 | struct property *prop; |
333 | ||
14cdd3c4 | 334 | name = conf_get_configname(); |
ddc97cac RZ |
335 | in = zconf_fopen(name); |
336 | if (in) | |
337 | goto load; | |
bfc10001 | 338 | sym_add_change_count(1); |
6b87b70c | 339 | if (!sym_defconfig_list) |
face4374 RZ |
340 | return 1; |
341 | ||
342 | for_all_defaults(sym_defconfig_list, prop) { | |
343 | if (expr_calc_value(prop->visible.expr) == no || | |
344 | prop->expr->type != E_SYMBOL) | |
345 | continue; | |
104daea1 MY |
346 | sym_calc_value(prop->expr->left.sym); |
347 | name = sym_get_string_value(prop->expr->left.sym); | |
1da177e4 LT |
348 | in = zconf_fopen(name); |
349 | if (in) { | |
694c49a7 | 350 | conf_message("using defaults found in %s", |
42368c37 | 351 | name); |
ddc97cac | 352 | goto load; |
1da177e4 LT |
353 | } |
354 | } | |
355 | } | |
1da177e4 LT |
356 | if (!in) |
357 | return 1; | |
358 | ||
ddc97cac | 359 | load: |
c1a0f5e3 RZ |
360 | conf_filename = name; |
361 | conf_lineno = 0; | |
362 | conf_warnings = 0; | |
c1a0f5e3 | 363 | |
669bfad9 | 364 | def_flags = SYMBOL_DEF << def; |
1da177e4 | 365 | for_all_symbols(i, sym) { |
669bfad9 RZ |
366 | sym->flags |= SYMBOL_CHANGED; |
367 | sym->flags &= ~(def_flags|SYMBOL_VALID); | |
490f1617 YM |
368 | if (sym_is_choice(sym)) |
369 | sym->flags |= def_flags; | |
1da177e4 LT |
370 | switch (sym->type) { |
371 | case S_INT: | |
372 | case S_HEX: | |
373 | case S_STRING: | |
669bfad9 RZ |
374 | if (sym->def[def].val) |
375 | free(sym->def[def].val); | |
d8fc3200 | 376 | /* fall through */ |
1da177e4 | 377 | default: |
669bfad9 RZ |
378 | sym->def[def].val = NULL; |
379 | sym->def[def].tri = no; | |
1da177e4 LT |
380 | } |
381 | } | |
382 | ||
1a7a8c6f | 383 | while (compat_getline(&line, &line_asize, in) != -1) { |
c1a0f5e3 | 384 | conf_lineno++; |
1da177e4 | 385 | sym = NULL; |
8baefd30 | 386 | if (line[0] == '#') { |
ffb5957b | 387 | if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) |
1da177e4 | 388 | continue; |
ffb5957b | 389 | p = strchr(line + 2 + strlen(CONFIG_), ' '); |
1da177e4 LT |
390 | if (!p) |
391 | continue; | |
392 | *p++ = 0; | |
393 | if (strncmp(p, "is not set", 10)) | |
394 | continue; | |
669bfad9 | 395 | if (def == S_DEF_USER) { |
ffb5957b | 396 | sym = sym_find(line + 2 + strlen(CONFIG_)); |
661b0680 | 397 | if (!sym) { |
398 | sym_add_change_count(1); | |
75889e9b | 399 | continue; |
661b0680 | 400 | } |
669bfad9 | 401 | } else { |
ffb5957b | 402 | sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); |
669bfad9 RZ |
403 | if (sym->type == S_UNKNOWN) |
404 | sym->type = S_BOOLEAN; | |
405 | } | |
406 | if (sym->flags & def_flags) { | |
d84876f9 | 407 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 LT |
408 | } |
409 | switch (sym->type) { | |
410 | case S_BOOLEAN: | |
411 | case S_TRISTATE: | |
669bfad9 RZ |
412 | sym->def[def].tri = no; |
413 | sym->flags |= def_flags; | |
1da177e4 LT |
414 | break; |
415 | default: | |
416 | ; | |
417 | } | |
ffb5957b AL |
418 | } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { |
419 | p = strchr(line + strlen(CONFIG_), '='); | |
1da177e4 LT |
420 | if (!p) |
421 | continue; | |
422 | *p++ = 0; | |
423 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
424 | if (p2) { |
425 | *p2-- = 0; | |
426 | if (*p2 == '\r') | |
427 | *p2 = 0; | |
428 | } | |
2aabbed6 MY |
429 | |
430 | sym = sym_find(line + strlen(CONFIG_)); | |
431 | if (!sym) { | |
432 | if (def == S_DEF_AUTO) | |
433 | /* | |
434 | * Reading from include/config/auto.conf | |
435 | * If CONFIG_FOO previously existed in | |
436 | * auto.conf but it is missing now, | |
437 | * include/config/foo.h must be touched. | |
438 | */ | |
439 | conf_touch_dep(line + strlen(CONFIG_)); | |
440 | else | |
661b0680 | 441 | sym_add_change_count(1); |
2aabbed6 | 442 | continue; |
669bfad9 | 443 | } |
2aabbed6 | 444 | |
669bfad9 | 445 | if (sym->flags & def_flags) { |
d84876f9 | 446 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 447 | } |
9c900a9c SR |
448 | if (conf_set_sym_val(sym, def, def_flags, p)) |
449 | continue; | |
8baefd30 AL |
450 | } else { |
451 | if (line[0] != '\r' && line[0] != '\n') | |
a4663911 PB |
452 | conf_warning("unexpected data: %.*s", |
453 | (int)strcspn(line, "\r\n"), line); | |
454 | ||
1da177e4 LT |
455 | continue; |
456 | } | |
75889e9b | 457 | |
1da177e4 LT |
458 | if (sym && sym_is_choice_value(sym)) { |
459 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 460 | switch (sym->def[def].tri) { |
1da177e4 LT |
461 | case no: |
462 | break; | |
463 | case mod: | |
669bfad9 | 464 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 465 | conf_warning("%s creates inconsistent choice state", sym->name); |
490f1617 | 466 | cs->flags &= ~def_flags; |
c1a0f5e3 | 467 | } |
1da177e4 LT |
468 | break; |
469 | case yes: | |
d84876f9 JE |
470 | if (cs->def[def].tri != no) |
471 | conf_warning("override: %s changes choice state", sym->name); | |
472 | cs->def[def].val = sym; | |
1da177e4 LT |
473 | break; |
474 | } | |
d6ee3576 | 475 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
476 | } |
477 | } | |
1a7a8c6f | 478 | free(line); |
1da177e4 | 479 | fclose(in); |
90389160 RZ |
480 | return 0; |
481 | } | |
482 | ||
483 | int conf_read(const char *name) | |
484 | { | |
5d09598d | 485 | struct symbol *sym; |
84dd95d4 | 486 | int conf_unsaved = 0; |
5d09598d | 487 | int i; |
90389160 | 488 | |
bfc10001 | 489 | sym_set_change_count(0); |
ddc97cac | 490 | |
6b87b70c AV |
491 | if (conf_read_simple(name, S_DEF_USER)) { |
492 | sym_calc_value(modules_sym); | |
90389160 | 493 | return 1; |
6b87b70c AV |
494 | } |
495 | ||
496 | sym_calc_value(modules_sym); | |
90389160 | 497 | |
1da177e4 LT |
498 | for_all_symbols(i, sym) { |
499 | sym_calc_value(sym); | |
693359f7 | 500 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE)) |
5d09598d | 501 | continue; |
c1a0f5e3 RZ |
502 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { |
503 | /* check that calculated value agrees with saved value */ | |
504 | switch (sym->type) { | |
505 | case S_BOOLEAN: | |
506 | case S_TRISTATE: | |
0c1822e6 | 507 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
c1a0f5e3 RZ |
508 | break; |
509 | if (!sym_is_choice(sym)) | |
5d09598d | 510 | continue; |
d8fc3200 | 511 | /* fall through */ |
c1a0f5e3 | 512 | default: |
0c1822e6 | 513 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
5d09598d | 514 | continue; |
c1a0f5e3 RZ |
515 | break; |
516 | } | |
517 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
518 | /* no previous value and not saved */ | |
5d09598d | 519 | continue; |
c1a0f5e3 RZ |
520 | conf_unsaved++; |
521 | /* maybe print value in verbose mode... */ | |
d8982ba1 RZ |
522 | } |
523 | ||
524 | for_all_symbols(i, sym) { | |
1da177e4 | 525 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
526 | /* Reset values of generates values, so they'll appear |
527 | * as new, if they should become visible, but that | |
528 | * doesn't quite work if the Kconfig and the saved | |
529 | * configuration disagree. | |
530 | */ | |
531 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 532 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
533 | switch (sym->type) { |
534 | case S_STRING: | |
535 | case S_INT: | |
536 | case S_HEX: | |
d8982ba1 RZ |
537 | /* Reset a string value if it's out of range */ |
538 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
539 | break; | |
540 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
541 | conf_unsaved++; | |
542 | break; | |
1da177e4 LT |
543 | default: |
544 | break; | |
545 | } | |
546 | } | |
1da177e4 LT |
547 | } |
548 | ||
bfc10001 | 549 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
550 | |
551 | return 0; | |
552 | } | |
553 | ||
e54e692b AL |
554 | /* |
555 | * Kconfig configuration printer | |
556 | * | |
557 | * This printer is used when generating the resulting configuration after | |
558 | * kconfig invocation and `defconfig' files. Unset symbol might be omitted by | |
559 | * passing a non-NULL argument to the printer. | |
560 | * | |
561 | */ | |
562 | static void | |
563 | kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
564 | { | |
565 | ||
566 | switch (sym->type) { | |
567 | case S_BOOLEAN: | |
568 | case S_TRISTATE: | |
569 | if (*value == 'n') { | |
570 | bool skip_unset = (arg != NULL); | |
571 | ||
572 | if (!skip_unset) | |
573 | fprintf(fp, "# %s%s is not set\n", | |
574 | CONFIG_, sym->name); | |
575 | return; | |
576 | } | |
577 | break; | |
578 | default: | |
579 | break; | |
580 | } | |
581 | ||
582 | fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value); | |
583 | } | |
584 | ||
585 | static void | |
586 | kconfig_print_comment(FILE *fp, const char *value, void *arg) | |
49192f26 | 587 | { |
e54e692b AL |
588 | const char *p = value; |
589 | size_t l; | |
590 | ||
591 | for (;;) { | |
592 | l = strcspn(p, "\n"); | |
593 | fprintf(fp, "#"); | |
49192f26 | 594 | if (l) { |
e54e692b | 595 | fprintf(fp, " "); |
70cc01e7 | 596 | xfwrite(p, l, 1, fp); |
e54e692b | 597 | p += l; |
49192f26 | 598 | } |
e54e692b AL |
599 | fprintf(fp, "\n"); |
600 | if (*p++ == '\0') | |
49192f26 | 601 | break; |
49192f26 | 602 | } |
49192f26 SR |
603 | } |
604 | ||
e54e692b | 605 | static struct conf_printer kconfig_printer_cb = |
49192f26 | 606 | { |
e54e692b AL |
607 | .print_symbol = kconfig_print_symbol, |
608 | .print_comment = kconfig_print_comment, | |
609 | }; | |
610 | ||
611 | /* | |
612 | * Header printer | |
613 | * | |
614 | * This printer is used when generating the `include/generated/autoconf.h' file. | |
615 | */ | |
616 | static void | |
617 | header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
618 | { | |
49192f26 | 619 | |
0dce6310 | 620 | switch (sym->type) { |
49192f26 | 621 | case S_BOOLEAN: |
eb4cf5a6 AL |
622 | case S_TRISTATE: { |
623 | const char *suffix = ""; | |
624 | ||
e54e692b AL |
625 | switch (*value) { |
626 | case 'n': | |
2a11c8ea | 627 | break; |
e54e692b AL |
628 | case 'm': |
629 | suffix = "_MODULE"; | |
eb4cf5a6 | 630 | /* fall through */ |
e54e692b | 631 | default: |
2a11c8ea MM |
632 | fprintf(fp, "#define %s%s%s 1\n", |
633 | CONFIG_, sym->name, suffix); | |
49192f26 | 634 | } |
eb4cf5a6 AL |
635 | break; |
636 | } | |
637 | case S_HEX: { | |
638 | const char *prefix = ""; | |
639 | ||
640 | if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) | |
641 | prefix = "0x"; | |
642 | fprintf(fp, "#define %s%s %s%s\n", | |
643 | CONFIG_, sym->name, prefix, value); | |
644 | break; | |
645 | } | |
646 | case S_STRING: | |
647 | case S_INT: | |
648 | fprintf(fp, "#define %s%s %s\n", | |
649 | CONFIG_, sym->name, value); | |
49192f26 | 650 | break; |
e54e692b | 651 | default: |
49192f26 | 652 | break; |
e54e692b AL |
653 | } |
654 | ||
e54e692b AL |
655 | } |
656 | ||
657 | static void | |
658 | header_print_comment(FILE *fp, const char *value, void *arg) | |
659 | { | |
660 | const char *p = value; | |
661 | size_t l; | |
662 | ||
663 | fprintf(fp, "/*\n"); | |
664 | for (;;) { | |
665 | l = strcspn(p, "\n"); | |
666 | fprintf(fp, " *"); | |
667 | if (l) { | |
668 | fprintf(fp, " "); | |
70cc01e7 | 669 | xfwrite(p, l, 1, fp); |
e54e692b AL |
670 | p += l; |
671 | } | |
672 | fprintf(fp, "\n"); | |
673 | if (*p++ == '\0') | |
674 | break; | |
675 | } | |
676 | fprintf(fp, " */\n"); | |
677 | } | |
678 | ||
679 | static struct conf_printer header_printer_cb = | |
680 | { | |
681 | .print_symbol = header_print_symbol, | |
682 | .print_comment = header_print_comment, | |
683 | }; | |
684 | ||
e54e692b AL |
685 | /* |
686 | * Tristate printer | |
687 | * | |
688 | * This printer is used when generating the `include/config/tristate.conf' file. | |
689 | */ | |
690 | static void | |
691 | tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
692 | { | |
693 | ||
694 | if (sym->type == S_TRISTATE && *value != 'n') | |
695 | fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value)); | |
696 | } | |
697 | ||
698 | static struct conf_printer tristate_printer_cb = | |
699 | { | |
700 | .print_symbol = tristate_print_symbol, | |
701 | .print_comment = kconfig_print_comment, | |
702 | }; | |
703 | ||
704 | static void conf_write_symbol(FILE *fp, struct symbol *sym, | |
705 | struct conf_printer *printer, void *printer_arg) | |
706 | { | |
707 | const char *str; | |
708 | ||
709 | switch (sym->type) { | |
49192f26 SR |
710 | case S_UNKNOWN: |
711 | break; | |
e54e692b AL |
712 | case S_STRING: |
713 | str = sym_get_string_value(sym); | |
714 | str = sym_escape_string_value(str); | |
715 | printer->print_symbol(fp, sym, str, printer_arg); | |
716 | free((void *)str); | |
717 | break; | |
718 | default: | |
719 | str = sym_get_string_value(sym); | |
720 | printer->print_symbol(fp, sym, str, printer_arg); | |
49192f26 SR |
721 | } |
722 | } | |
723 | ||
e54e692b AL |
724 | static void |
725 | conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg) | |
726 | { | |
727 | char buf[256]; | |
728 | ||
729 | snprintf(buf, sizeof(buf), | |
730 | "\n" | |
731 | "Automatically generated file; DO NOT EDIT.\n" | |
732 | "%s\n", | |
733 | rootmenu.prompt->text); | |
734 | ||
735 | printer->print_comment(fp, buf, printer_arg); | |
736 | } | |
737 | ||
7cf3d73b SR |
738 | /* |
739 | * Write out a minimal config. | |
740 | * All values that has default values are skipped as this is redundant. | |
741 | */ | |
742 | int conf_write_defconfig(const char *filename) | |
743 | { | |
744 | struct symbol *sym; | |
745 | struct menu *menu; | |
746 | FILE *out; | |
747 | ||
748 | out = fopen(filename, "w"); | |
749 | if (!out) | |
750 | return 1; | |
751 | ||
752 | sym_clear_all_valid(); | |
753 | ||
754 | /* Traverse all menus to find all relevant symbols */ | |
755 | menu = rootmenu.list; | |
756 | ||
757 | while (menu != NULL) | |
758 | { | |
759 | sym = menu->sym; | |
760 | if (sym == NULL) { | |
761 | if (!menu_is_visible(menu)) | |
762 | goto next_menu; | |
763 | } else if (!sym_is_choice(sym)) { | |
764 | sym_calc_value(sym); | |
765 | if (!(sym->flags & SYMBOL_WRITE)) | |
766 | goto next_menu; | |
767 | sym->flags &= ~SYMBOL_WRITE; | |
768 | /* If we cannot change the symbol - skip */ | |
769 | if (!sym_is_changable(sym)) | |
770 | goto next_menu; | |
771 | /* If symbol equals to default value - skip */ | |
772 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
773 | goto next_menu; | |
774 | ||
775 | /* | |
776 | * If symbol is a choice value and equals to the | |
777 | * default for a choice - skip. | |
84062dd3 SR |
778 | * But only if value is bool and equal to "y" and |
779 | * choice is not "optional". | |
780 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
781 | */ |
782 | if (sym_is_choice_value(sym)) { | |
783 | struct symbol *cs; | |
784 | struct symbol *ds; | |
785 | ||
786 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
787 | ds = sym_choice_default(cs); | |
84062dd3 | 788 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
789 | if ((sym->type == S_BOOLEAN) && |
790 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
791 | goto next_menu; |
792 | } | |
793 | } | |
e54e692b | 794 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); |
7cf3d73b SR |
795 | } |
796 | next_menu: | |
797 | if (menu->list != NULL) { | |
798 | menu = menu->list; | |
799 | } | |
800 | else if (menu->next != NULL) { | |
801 | menu = menu->next; | |
802 | } else { | |
803 | while ((menu = menu->parent)) { | |
804 | if (menu->next != NULL) { | |
805 | menu = menu->next; | |
806 | break; | |
807 | } | |
808 | } | |
809 | } | |
810 | } | |
811 | fclose(out); | |
812 | return 0; | |
813 | } | |
814 | ||
1da177e4 LT |
815 | int conf_write(const char *name) |
816 | { | |
c955ccaf | 817 | FILE *out; |
1da177e4 LT |
818 | struct symbol *sym; |
819 | struct menu *menu; | |
820 | const char *basename; | |
1da177e4 | 821 | const char *str; |
2ae89c7a | 822 | char dirname[PATH_MAX+1], tmpname[PATH_MAX+22], newname[PATH_MAX+8]; |
1da177e4 LT |
823 | char *env; |
824 | ||
825 | dirname[0] = 0; | |
826 | if (name && name[0]) { | |
1da177e4 LT |
827 | char *slash; |
828 | ||
0608182a | 829 | if (is_dir(name)) { |
1da177e4 LT |
830 | strcpy(dirname, name); |
831 | strcat(dirname, "/"); | |
14cdd3c4 | 832 | basename = conf_get_configname(); |
1da177e4 LT |
833 | } else if ((slash = strrchr(name, '/'))) { |
834 | int size = slash - name + 1; | |
835 | memcpy(dirname, name, size); | |
836 | dirname[size] = 0; | |
837 | if (slash[1]) | |
838 | basename = slash + 1; | |
839 | else | |
14cdd3c4 | 840 | basename = conf_get_configname(); |
1da177e4 LT |
841 | } else |
842 | basename = name; | |
843 | } else | |
14cdd3c4 | 844 | basename = conf_get_configname(); |
1da177e4 | 845 | |
14cdd3c4 RZ |
846 | sprintf(newname, "%s%s", dirname, basename); |
847 | env = getenv("KCONFIG_OVERWRITECONFIG"); | |
848 | if (!env || !*env) { | |
849 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); | |
850 | out = fopen(tmpname, "w"); | |
851 | } else { | |
852 | *tmpname = 0; | |
853 | out = fopen(newname, "w"); | |
854 | } | |
1da177e4 LT |
855 | if (!out) |
856 | return 1; | |
14cdd3c4 | 857 | |
e54e692b | 858 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
1da177e4 | 859 | |
b3214293 | 860 | if (!conf_get_changed()) |
1da177e4 LT |
861 | sym_clear_all_valid(); |
862 | ||
863 | menu = rootmenu.list; | |
864 | while (menu) { | |
865 | sym = menu->sym; | |
866 | if (!sym) { | |
867 | if (!menu_is_visible(menu)) | |
868 | goto next; | |
869 | str = menu_get_prompt(menu); | |
870 | fprintf(out, "\n" | |
871 | "#\n" | |
872 | "# %s\n" | |
873 | "#\n", str); | |
1da177e4 LT |
874 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
875 | sym_calc_value(sym); | |
876 | if (!(sym->flags & SYMBOL_WRITE)) | |
877 | goto next; | |
878 | sym->flags &= ~SYMBOL_WRITE; | |
e54e692b AL |
879 | |
880 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); | |
1da177e4 LT |
881 | } |
882 | ||
49192f26 | 883 | next: |
1da177e4 LT |
884 | if (menu->list) { |
885 | menu = menu->list; | |
886 | continue; | |
887 | } | |
888 | if (menu->next) | |
889 | menu = menu->next; | |
890 | else while ((menu = menu->parent)) { | |
891 | if (menu->next) { | |
892 | menu = menu->next; | |
893 | break; | |
894 | } | |
895 | } | |
896 | } | |
897 | fclose(out); | |
14cdd3c4 RZ |
898 | |
899 | if (*tmpname) { | |
9a3d0fe8 | 900 | strcat(dirname, basename); |
14cdd3c4 RZ |
901 | strcat(dirname, ".old"); |
902 | rename(newname, dirname); | |
903 | if (rename(tmpname, newname)) | |
904 | return 1; | |
1da177e4 | 905 | } |
1da177e4 | 906 | |
694c49a7 | 907 | conf_message("configuration written to %s", newname); |
ddc97cac | 908 | |
bfc10001 | 909 | sym_set_change_count(0); |
1da177e4 LT |
910 | |
911 | return 0; | |
912 | } | |
c955ccaf | 913 | |
a2ff4040 MY |
914 | /* write a dependency file as used by kbuild to track dependencies */ |
915 | static int conf_write_dep(const char *name) | |
916 | { | |
917 | struct file *file; | |
918 | FILE *out; | |
919 | ||
920 | if (!name) | |
921 | name = ".kconfig.d"; | |
922 | out = fopen("..config.tmp", "w"); | |
923 | if (!out) | |
924 | return 1; | |
925 | fprintf(out, "deps_config := \\\n"); | |
926 | for (file = file_list; file; file = file->next) { | |
927 | if (file->next) | |
928 | fprintf(out, "\t%s \\\n", file->name); | |
929 | else | |
930 | fprintf(out, "\t%s\n", file->name); | |
931 | } | |
932 | fprintf(out, "\n%s: \\\n" | |
933 | "\t$(deps_config)\n\n", conf_get_autoconfig_name()); | |
934 | ||
935 | env_write_dep(out, conf_get_autoconfig_name()); | |
936 | ||
937 | fprintf(out, "\n$(deps_config): ;\n"); | |
938 | fclose(out); | |
79123b13 MY |
939 | |
940 | if (make_parent_dir(name)) | |
941 | return 1; | |
a2ff4040 MY |
942 | rename("..config.tmp", name); |
943 | return 0; | |
944 | } | |
945 | ||
0849d212 | 946 | static int conf_touch_deps(void) |
2e3646e5 | 947 | { |
12122f62 | 948 | const char *name; |
2e3646e5 | 949 | struct symbol *sym; |
1508fec8 MY |
950 | int res, i; |
951 | ||
952 | strcpy(depfile_path, "include/config/"); | |
953 | depfile_prefix_len = strlen(depfile_path); | |
2e3646e5 | 954 | |
12122f62 | 955 | name = conf_get_autoconfig_name(); |
2e3646e5 | 956 | conf_read_simple(name, S_DEF_AUTO); |
6b87b70c | 957 | sym_calc_value(modules_sym); |
2e3646e5 | 958 | |
2e3646e5 RZ |
959 | for_all_symbols(i, sym) { |
960 | sym_calc_value(sym); | |
693359f7 | 961 | if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name) |
2e3646e5 RZ |
962 | continue; |
963 | if (sym->flags & SYMBOL_WRITE) { | |
964 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
965 | /* | |
966 | * symbol has old and new value, | |
967 | * so compare them... | |
968 | */ | |
969 | switch (sym->type) { | |
970 | case S_BOOLEAN: | |
971 | case S_TRISTATE: | |
972 | if (sym_get_tristate_value(sym) == | |
973 | sym->def[S_DEF_AUTO].tri) | |
974 | continue; | |
975 | break; | |
976 | case S_STRING: | |
977 | case S_HEX: | |
978 | case S_INT: | |
979 | if (!strcmp(sym_get_string_value(sym), | |
980 | sym->def[S_DEF_AUTO].val)) | |
981 | continue; | |
982 | break; | |
983 | default: | |
984 | break; | |
985 | } | |
986 | } else { | |
987 | /* | |
988 | * If there is no old value, only 'no' (unset) | |
989 | * is allowed as new value. | |
990 | */ | |
991 | switch (sym->type) { | |
992 | case S_BOOLEAN: | |
993 | case S_TRISTATE: | |
994 | if (sym_get_tristate_value(sym) == no) | |
995 | continue; | |
996 | break; | |
997 | default: | |
998 | break; | |
999 | } | |
1000 | } | |
1001 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
1002 | /* There is neither an old nor a new value. */ | |
1003 | continue; | |
1004 | /* else | |
1005 | * There is an old value, but no new value ('no' (unset) | |
1006 | * isn't saved in auto.conf, so the old value is always | |
1007 | * different from 'no'). | |
1008 | */ | |
1009 | ||
1508fec8 MY |
1010 | res = conf_touch_dep(sym->name); |
1011 | if (res) | |
1012 | return res; | |
2e3646e5 | 1013 | } |
2e3646e5 | 1014 | |
1508fec8 | 1015 | return 0; |
2e3646e5 RZ |
1016 | } |
1017 | ||
00c864f8 | 1018 | int conf_write_autoconf(int overwrite) |
c955ccaf RZ |
1019 | { |
1020 | struct symbol *sym; | |
12122f62 | 1021 | const char *name; |
00c864f8 | 1022 | const char *autoconf_name = conf_get_autoconfig_name(); |
bc081dd6 | 1023 | FILE *out, *tristate, *out_h; |
49192f26 | 1024 | int i; |
c955ccaf | 1025 | |
00c864f8 MY |
1026 | if (!overwrite && is_present(autoconf_name)) |
1027 | return 0; | |
1028 | ||
2e3646e5 RZ |
1029 | sym_clear_all_valid(); |
1030 | ||
a2ff4040 | 1031 | conf_write_dep("include/config/auto.conf.cmd"); |
c955ccaf | 1032 | |
0849d212 | 1033 | if (conf_touch_deps()) |
2e3646e5 RZ |
1034 | return 1; |
1035 | ||
c955ccaf RZ |
1036 | out = fopen(".tmpconfig", "w"); |
1037 | if (!out) | |
1038 | return 1; | |
1039 | ||
bc081dd6 MM |
1040 | tristate = fopen(".tmpconfig_tristate", "w"); |
1041 | if (!tristate) { | |
1042 | fclose(out); | |
1043 | return 1; | |
1044 | } | |
1045 | ||
c955ccaf RZ |
1046 | out_h = fopen(".tmpconfig.h", "w"); |
1047 | if (!out_h) { | |
1048 | fclose(out); | |
bc081dd6 | 1049 | fclose(tristate); |
c955ccaf RZ |
1050 | return 1; |
1051 | } | |
1052 | ||
e54e692b AL |
1053 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
1054 | ||
1055 | conf_write_heading(tristate, &tristate_printer_cb, NULL); | |
1056 | ||
1057 | conf_write_heading(out_h, &header_printer_cb, NULL); | |
c955ccaf | 1058 | |
c955ccaf RZ |
1059 | for_all_symbols(i, sym) { |
1060 | sym_calc_value(sym); | |
a9596135 | 1061 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) |
c955ccaf | 1062 | continue; |
49192f26 | 1063 | |
a9596135 | 1064 | /* write symbol to auto.conf, tristate and header files */ |
e54e692b | 1065 | conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); |
49192f26 | 1066 | |
e54e692b AL |
1067 | conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); |
1068 | ||
1069 | conf_write_symbol(out_h, sym, &header_printer_cb, NULL); | |
c955ccaf RZ |
1070 | } |
1071 | fclose(out); | |
bc081dd6 | 1072 | fclose(tristate); |
c955ccaf RZ |
1073 | fclose(out_h); |
1074 | ||
1075 | name = getenv("KCONFIG_AUTOHEADER"); | |
1076 | if (!name) | |
264a2683 | 1077 | name = "include/generated/autoconf.h"; |
79123b13 MY |
1078 | if (make_parent_dir(name)) |
1079 | return 1; | |
c955ccaf RZ |
1080 | if (rename(".tmpconfig.h", name)) |
1081 | return 1; | |
79123b13 | 1082 | |
bc081dd6 MM |
1083 | name = getenv("KCONFIG_TRISTATE"); |
1084 | if (!name) | |
1085 | name = "include/config/tristate.conf"; | |
79123b13 MY |
1086 | if (make_parent_dir(name)) |
1087 | return 1; | |
bc081dd6 MM |
1088 | if (rename(".tmpconfig_tristate", name)) |
1089 | return 1; | |
79123b13 | 1090 | |
00c864f8 | 1091 | if (make_parent_dir(autoconf_name)) |
79123b13 | 1092 | return 1; |
c955ccaf RZ |
1093 | /* |
1094 | * This must be the last step, kbuild has a dependency on auto.conf | |
1095 | * and this marks the successful completion of the previous steps. | |
1096 | */ | |
00c864f8 | 1097 | if (rename(".tmpconfig", autoconf_name)) |
c955ccaf RZ |
1098 | return 1; |
1099 | ||
1100 | return 0; | |
1101 | } | |
b3214293 | 1102 | |
bfc10001 | 1103 | static int sym_change_count; |
3b354c55 | 1104 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
1105 | |
1106 | void sym_set_change_count(int count) | |
1107 | { | |
3b354c55 | 1108 | int _sym_change_count = sym_change_count; |
bfc10001 | 1109 | sym_change_count = count; |
3b354c55 KW |
1110 | if (conf_changed_callback && |
1111 | (bool)_sym_change_count != (bool)count) | |
1112 | conf_changed_callback(); | |
bfc10001 KW |
1113 | } |
1114 | ||
1115 | void sym_add_change_count(int count) | |
1116 | { | |
3b354c55 | 1117 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
1118 | } |
1119 | ||
b3214293 KW |
1120 | bool conf_get_changed(void) |
1121 | { | |
1122 | return sym_change_count; | |
1123 | } | |
3b354c55 KW |
1124 | |
1125 | void conf_set_changed_callback(void (*fn)(void)) | |
1126 | { | |
1127 | conf_changed_callback = fn; | |
1128 | } | |
dc7862e5 | 1129 | |
3b9a19e0 | 1130 | static bool randomize_choice_values(struct symbol *csym) |
a64b44ea SR |
1131 | { |
1132 | struct property *prop; | |
1133 | struct symbol *sym; | |
1134 | struct expr *e; | |
1135 | int cnt, def; | |
dc7862e5 | 1136 | |
a64b44ea | 1137 | /* |
579fb8e7 | 1138 | * If choice is mod then we may have more items selected |
a64b44ea SR |
1139 | * and if no then no-one. |
1140 | * In both cases stop. | |
1141 | */ | |
1142 | if (csym->curr.tri != yes) | |
3b9a19e0 | 1143 | return false; |
a64b44ea SR |
1144 | |
1145 | prop = sym_get_choice_prop(csym); | |
1146 | ||
1147 | /* count entries in choice block */ | |
1148 | cnt = 0; | |
1149 | expr_list_for_each_sym(prop->expr, e, sym) | |
1150 | cnt++; | |
1151 | ||
1152 | /* | |
1153 | * find a random value and set it to yes, | |
1154 | * set the rest to no so we have only one set | |
1155 | */ | |
1156 | def = (rand() % cnt); | |
1157 | ||
1158 | cnt = 0; | |
1159 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1160 | if (def == cnt++) { | |
1161 | sym->def[S_DEF_USER].tri = yes; | |
1162 | csym->def[S_DEF_USER].val = sym; | |
1163 | } | |
1164 | else { | |
1165 | sym->def[S_DEF_USER].tri = no; | |
1166 | } | |
e6abf12a YM |
1167 | sym->flags |= SYMBOL_DEF_USER; |
1168 | /* clear VALID to get value calculated */ | |
1169 | sym->flags &= ~SYMBOL_VALID; | |
a64b44ea SR |
1170 | } |
1171 | csym->flags |= SYMBOL_DEF_USER; | |
1172 | /* clear VALID to get value calculated */ | |
1173 | csym->flags &= ~(SYMBOL_VALID); | |
3b9a19e0 YM |
1174 | |
1175 | return true; | |
a64b44ea SR |
1176 | } |
1177 | ||
fbe98bb9 | 1178 | void set_all_choice_values(struct symbol *csym) |
dc7862e5 | 1179 | { |
dc7862e5 | 1180 | struct property *prop; |
a64b44ea | 1181 | struct symbol *sym; |
dc7862e5 | 1182 | struct expr *e; |
a64b44ea SR |
1183 | |
1184 | prop = sym_get_choice_prop(csym); | |
1185 | ||
1186 | /* | |
1187 | * Set all non-assinged choice values to no | |
1188 | */ | |
1189 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1190 | if (!sym_has_value(sym)) | |
1191 | sym->def[S_DEF_USER].tri = no; | |
1192 | } | |
1193 | csym->flags |= SYMBOL_DEF_USER; | |
1194 | /* clear VALID to get value calculated */ | |
fbe98bb9 | 1195 | csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES); |
a64b44ea SR |
1196 | } |
1197 | ||
3b9a19e0 | 1198 | bool conf_set_all_new_symbols(enum conf_def_mode mode) |
a64b44ea SR |
1199 | { |
1200 | struct symbol *sym, *csym; | |
b92d804a | 1201 | int i, cnt, pby, pty, ptm; /* pby: probability of bool = y |
e43956e6 YM |
1202 | * pty: probability of tristate = y |
1203 | * ptm: probability of tristate = m | |
1204 | */ | |
1205 | ||
1206 | pby = 50; pty = ptm = 33; /* can't go as the default in switch-case | |
1207 | * below, otherwise gcc whines about | |
1208 | * -Wmaybe-uninitialized */ | |
1209 | if (mode == def_random) { | |
1210 | int n, p[3]; | |
1211 | char *env = getenv("KCONFIG_PROBABILITY"); | |
1212 | n = 0; | |
1213 | while( env && *env ) { | |
1214 | char *endp; | |
1215 | int tmp = strtol( env, &endp, 10 ); | |
1216 | if( tmp >= 0 && tmp <= 100 ) { | |
1217 | p[n++] = tmp; | |
1218 | } else { | |
1219 | errno = ERANGE; | |
1220 | perror( "KCONFIG_PROBABILITY" ); | |
1221 | exit( 1 ); | |
1222 | } | |
1223 | env = (*endp == ':') ? endp+1 : endp; | |
1224 | if( n >=3 ) { | |
1225 | break; | |
1226 | } | |
1227 | } | |
1228 | switch( n ) { | |
1229 | case 1: | |
1230 | pby = p[0]; ptm = pby/2; pty = pby-ptm; | |
1231 | break; | |
1232 | case 2: | |
1233 | pty = p[0]; ptm = p[1]; pby = pty + ptm; | |
1234 | break; | |
1235 | case 3: | |
1236 | pby = p[0]; pty = p[1]; ptm = p[2]; | |
1237 | break; | |
1238 | } | |
1239 | ||
1240 | if( pty+ptm > 100 ) { | |
1241 | errno = ERANGE; | |
1242 | perror( "KCONFIG_PROBABILITY" ); | |
1243 | exit( 1 ); | |
1244 | } | |
1245 | } | |
3b9a19e0 | 1246 | bool has_changed = false; |
dc7862e5 RZ |
1247 | |
1248 | for_all_symbols(i, sym) { | |
cfa98f2e | 1249 | if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID)) |
dc7862e5 RZ |
1250 | continue; |
1251 | switch (sym_get_type(sym)) { | |
1252 | case S_BOOLEAN: | |
1253 | case S_TRISTATE: | |
3b9a19e0 | 1254 | has_changed = true; |
dc7862e5 RZ |
1255 | switch (mode) { |
1256 | case def_yes: | |
1257 | sym->def[S_DEF_USER].tri = yes; | |
1258 | break; | |
1259 | case def_mod: | |
1260 | sym->def[S_DEF_USER].tri = mod; | |
1261 | break; | |
1262 | case def_no: | |
5d2acfc7 JT |
1263 | if (sym->flags & SYMBOL_ALLNOCONFIG_Y) |
1264 | sym->def[S_DEF_USER].tri = yes; | |
1265 | else | |
1266 | sym->def[S_DEF_USER].tri = no; | |
dc7862e5 RZ |
1267 | break; |
1268 | case def_random: | |
e43956e6 YM |
1269 | sym->def[S_DEF_USER].tri = no; |
1270 | cnt = rand() % 100; | |
1271 | if (sym->type == S_TRISTATE) { | |
1272 | if (cnt < pty) | |
1273 | sym->def[S_DEF_USER].tri = yes; | |
1274 | else if (cnt < (pty+ptm)) | |
1275 | sym->def[S_DEF_USER].tri = mod; | |
1276 | } else if (cnt < pby) | |
1277 | sym->def[S_DEF_USER].tri = yes; | |
dc7862e5 RZ |
1278 | break; |
1279 | default: | |
1280 | continue; | |
1281 | } | |
184832c9 | 1282 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1283 | sym->flags |= SYMBOL_DEF_USER; |
1284 | break; | |
1285 | default: | |
1286 | break; | |
1287 | } | |
1288 | ||
1289 | } | |
1290 | ||
ce97e13e | 1291 | sym_clear_all_valid(); |
dc7862e5 | 1292 | |
184832c9 SR |
1293 | /* |
1294 | * We have different type of choice blocks. | |
579fb8e7 | 1295 | * If curr.tri equals to mod then we can select several |
184832c9 SR |
1296 | * choice symbols in one block. |
1297 | * In this case we do nothing. | |
579fb8e7 | 1298 | * If curr.tri equals yes then only one symbol can be |
184832c9 SR |
1299 | * selected in a choice block and we set it to yes, |
1300 | * and the rest to no. | |
1301 | */ | |
fbe98bb9 AH |
1302 | if (mode != def_random) { |
1303 | for_all_symbols(i, csym) { | |
1304 | if ((sym_is_choice(csym) && !sym_has_value(csym)) || | |
1305 | sym_is_choice_value(csym)) | |
1306 | csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES; | |
1307 | } | |
1308 | } | |
1309 | ||
dc7862e5 RZ |
1310 | for_all_symbols(i, csym) { |
1311 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1312 | continue; | |
1313 | ||
1314 | sym_calc_value(csym); | |
a64b44ea | 1315 | if (mode == def_random) |
3b9a19e0 YM |
1316 | has_changed = randomize_choice_values(csym); |
1317 | else { | |
1318 | set_all_choice_values(csym); | |
1319 | has_changed = true; | |
1320 | } | |
dc7862e5 | 1321 | } |
3b9a19e0 YM |
1322 | |
1323 | return has_changed; | |
dc7862e5 | 1324 | } |