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Commit | Line | Data |
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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 | ||
67424f61 | 6 | #include <sys/mman.h> |
1da177e4 LT |
7 | #include <sys/stat.h> |
8 | #include <ctype.h> | |
94bedeca | 9 | #include <errno.h> |
2e3646e5 | 10 | #include <fcntl.h> |
558e78e3 | 11 | #include <limits.h> |
10a4b277 | 12 | #include <stdarg.h> |
1da177e4 LT |
13 | #include <stdio.h> |
14 | #include <stdlib.h> | |
15 | #include <string.h> | |
16 | #include <time.h> | |
17 | #include <unistd.h> | |
18 | ||
1da177e4 LT |
19 | #include "lkc.h" |
20 | ||
0608182a MY |
21 | /* return true if 'path' exists, false otherwise */ |
22 | static bool is_present(const char *path) | |
23 | { | |
24 | struct stat st; | |
25 | ||
26 | return !stat(path, &st); | |
27 | } | |
28 | ||
29 | /* return true if 'path' exists and it is a directory, false otherwise */ | |
30 | static bool is_dir(const char *path) | |
31 | { | |
32 | struct stat st; | |
33 | ||
34 | if (stat(path, &st)) | |
35 | return 0; | |
36 | ||
37 | return S_ISDIR(st.st_mode); | |
38 | } | |
39 | ||
67424f61 MY |
40 | /* return true if the given two files are the same, false otherwise */ |
41 | static bool is_same(const char *file1, const char *file2) | |
42 | { | |
43 | int fd1, fd2; | |
44 | struct stat st1, st2; | |
45 | void *map1, *map2; | |
46 | bool ret = false; | |
47 | ||
48 | fd1 = open(file1, O_RDONLY); | |
49 | if (fd1 < 0) | |
50 | return ret; | |
51 | ||
52 | fd2 = open(file2, O_RDONLY); | |
53 | if (fd2 < 0) | |
54 | goto close1; | |
55 | ||
56 | ret = fstat(fd1, &st1); | |
57 | if (ret) | |
58 | goto close2; | |
59 | ret = fstat(fd2, &st2); | |
60 | if (ret) | |
61 | goto close2; | |
62 | ||
63 | if (st1.st_size != st2.st_size) | |
64 | goto close2; | |
65 | ||
66 | map1 = mmap(NULL, st1.st_size, PROT_READ, MAP_PRIVATE, fd1, 0); | |
67 | if (map1 == MAP_FAILED) | |
68 | goto close2; | |
69 | ||
70 | map2 = mmap(NULL, st2.st_size, PROT_READ, MAP_PRIVATE, fd2, 0); | |
71 | if (map2 == MAP_FAILED) | |
72 | goto close2; | |
73 | ||
74 | if (bcmp(map1, map2, st1.st_size)) | |
75 | goto close2; | |
76 | ||
77 | ret = true; | |
78 | close2: | |
79 | close(fd2); | |
80 | close1: | |
81 | close(fd1); | |
82 | ||
83 | return ret; | |
84 | } | |
85 | ||
0608182a MY |
86 | /* |
87 | * Create the parent directory of the given path. | |
88 | * | |
89 | * For example, if 'include/config/auto.conf' is given, create 'include/config'. | |
90 | */ | |
91 | static int make_parent_dir(const char *path) | |
92 | { | |
93 | char tmp[PATH_MAX + 1]; | |
94 | char *p; | |
95 | ||
96 | strncpy(tmp, path, sizeof(tmp)); | |
97 | tmp[sizeof(tmp) - 1] = 0; | |
98 | ||
99 | /* Remove the base name. Just return if nothing is left */ | |
100 | p = strrchr(tmp, '/'); | |
101 | if (!p) | |
102 | return 0; | |
103 | *(p + 1) = 0; | |
104 | ||
105 | /* Just in case it is an absolute path */ | |
106 | p = tmp; | |
107 | while (*p == '/') | |
108 | p++; | |
109 | ||
110 | while ((p = strchr(p, '/'))) { | |
111 | *p = 0; | |
112 | ||
113 | /* skip if the directory exists */ | |
114 | if (!is_dir(tmp) && mkdir(tmp, 0755)) | |
115 | return -1; | |
116 | ||
117 | *p = '/'; | |
118 | while (*p == '/') | |
119 | p++; | |
120 | } | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
1508fec8 MY |
125 | static char depfile_path[PATH_MAX]; |
126 | static size_t depfile_prefix_len; | |
127 | ||
128 | /* touch depfile for symbol 'name' */ | |
129 | static int conf_touch_dep(const char *name) | |
130 | { | |
131 | int fd, ret; | |
132 | const char *s; | |
133 | char *d, c; | |
134 | ||
135 | /* check overflow: prefix + name + ".h" + '\0' must fit in buffer. */ | |
136 | if (depfile_prefix_len + strlen(name) + 3 > sizeof(depfile_path)) | |
137 | return -1; | |
138 | ||
139 | d = depfile_path + depfile_prefix_len; | |
140 | s = name; | |
141 | ||
142 | while ((c = *s++)) | |
143 | *d++ = (c == '_') ? '/' : tolower(c); | |
144 | strcpy(d, ".h"); | |
145 | ||
146 | /* Assume directory path already exists. */ | |
147 | fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
148 | if (fd == -1) { | |
149 | if (errno != ENOENT) | |
150 | return -1; | |
151 | ||
152 | ret = make_parent_dir(depfile_path); | |
153 | if (ret) | |
154 | return ret; | |
155 | ||
156 | /* Try it again. */ | |
157 | fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
158 | if (fd == -1) | |
159 | return -1; | |
160 | } | |
161 | close(fd); | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
ad8d40cd MM |
166 | struct conf_printer { |
167 | void (*print_symbol)(FILE *, struct symbol *, const char *, void *); | |
168 | void (*print_comment)(FILE *, const char *, void *); | |
169 | }; | |
170 | ||
c1a0f5e3 RZ |
171 | static void conf_warning(const char *fmt, ...) |
172 | __attribute__ ((format (printf, 1, 2))); | |
173 | ||
42368c37 MM |
174 | static void conf_message(const char *fmt, ...) |
175 | __attribute__ ((format (printf, 1, 2))); | |
176 | ||
c1a0f5e3 | 177 | static const char *conf_filename; |
84dd95d4 | 178 | static int conf_lineno, conf_warnings; |
c1a0f5e3 | 179 | |
c1a0f5e3 RZ |
180 | static void conf_warning(const char *fmt, ...) |
181 | { | |
182 | va_list ap; | |
183 | va_start(ap, fmt); | |
184 | fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); | |
185 | vfprintf(stderr, fmt, ap); | |
186 | fprintf(stderr, "\n"); | |
187 | va_end(ap); | |
188 | conf_warnings++; | |
189 | } | |
190 | ||
5accd7f3 | 191 | static void conf_default_message_callback(const char *s) |
42368c37 MM |
192 | { |
193 | printf("#\n# "); | |
5accd7f3 | 194 | printf("%s", s); |
42368c37 MM |
195 | printf("\n#\n"); |
196 | } | |
197 | ||
5accd7f3 | 198 | static void (*conf_message_callback)(const char *s) = |
42368c37 | 199 | conf_default_message_callback; |
5accd7f3 | 200 | void conf_set_message_callback(void (*fn)(const char *s)) |
42368c37 MM |
201 | { |
202 | conf_message_callback = fn; | |
203 | } | |
204 | ||
205 | static void conf_message(const char *fmt, ...) | |
206 | { | |
207 | va_list ap; | |
5accd7f3 MY |
208 | char buf[4096]; |
209 | ||
210 | if (!conf_message_callback) | |
211 | return; | |
42368c37 MM |
212 | |
213 | va_start(ap, fmt); | |
5accd7f3 MY |
214 | |
215 | vsnprintf(buf, sizeof(buf), fmt, ap); | |
216 | conf_message_callback(buf); | |
b6a2ab2c | 217 | va_end(ap); |
42368c37 MM |
218 | } |
219 | ||
14cdd3c4 RZ |
220 | const char *conf_get_configname(void) |
221 | { | |
222 | char *name = getenv("KCONFIG_CONFIG"); | |
223 | ||
224 | return name ? name : ".config"; | |
225 | } | |
226 | ||
9b9f5948 | 227 | static const char *conf_get_autoconfig_name(void) |
12122f62 MH |
228 | { |
229 | char *name = getenv("KCONFIG_AUTOCONFIG"); | |
230 | ||
231 | return name ? name : "include/config/auto.conf"; | |
232 | } | |
233 | ||
9c900a9c SR |
234 | static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) |
235 | { | |
236 | char *p2; | |
237 | ||
238 | switch (sym->type) { | |
239 | case S_TRISTATE: | |
240 | if (p[0] == 'm') { | |
241 | sym->def[def].tri = mod; | |
242 | sym->flags |= def_flags; | |
243 | break; | |
244 | } | |
d8fc3200 | 245 | /* fall through */ |
9c900a9c SR |
246 | case S_BOOLEAN: |
247 | if (p[0] == 'y') { | |
248 | sym->def[def].tri = yes; | |
249 | sym->flags |= def_flags; | |
250 | break; | |
251 | } | |
252 | if (p[0] == 'n') { | |
253 | sym->def[def].tri = no; | |
254 | sym->flags |= def_flags; | |
255 | break; | |
256 | } | |
04b19b77 YM |
257 | if (def != S_DEF_AUTO) |
258 | conf_warning("symbol value '%s' invalid for %s", | |
259 | p, sym->name); | |
75f1468b | 260 | return 1; |
9c900a9c SR |
261 | case S_STRING: |
262 | if (*p++ != '"') | |
263 | break; | |
264 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { | |
265 | if (*p2 == '"') { | |
266 | *p2 = 0; | |
267 | break; | |
268 | } | |
269 | memmove(p2, p2 + 1, strlen(p2)); | |
270 | } | |
271 | if (!p2) { | |
04b19b77 YM |
272 | if (def != S_DEF_AUTO) |
273 | conf_warning("invalid string found"); | |
9c900a9c SR |
274 | return 1; |
275 | } | |
d8fc3200 | 276 | /* fall through */ |
9c900a9c SR |
277 | case S_INT: |
278 | case S_HEX: | |
9c900a9c | 279 | if (sym_string_valid(sym, p)) { |
cd81fc82 | 280 | sym->def[def].val = xstrdup(p); |
9c900a9c SR |
281 | sym->flags |= def_flags; |
282 | } else { | |
04b19b77 YM |
283 | if (def != S_DEF_AUTO) |
284 | conf_warning("symbol value '%s' invalid for %s", | |
285 | p, sym->name); | |
9c900a9c SR |
286 | return 1; |
287 | } | |
288 | break; | |
289 | default: | |
290 | ; | |
291 | } | |
292 | return 0; | |
293 | } | |
294 | ||
1a7a8c6f CS |
295 | #define LINE_GROWTH 16 |
296 | static int add_byte(int c, char **lineptr, size_t slen, size_t *n) | |
297 | { | |
298 | char *nline; | |
299 | size_t new_size = slen + 1; | |
300 | if (new_size > *n) { | |
301 | new_size += LINE_GROWTH - 1; | |
302 | new_size *= 2; | |
d717f24d | 303 | nline = xrealloc(*lineptr, new_size); |
1a7a8c6f CS |
304 | if (!nline) |
305 | return -1; | |
306 | ||
307 | *lineptr = nline; | |
308 | *n = new_size; | |
309 | } | |
310 | ||
311 | (*lineptr)[slen] = c; | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream) | |
317 | { | |
318 | char *line = *lineptr; | |
319 | size_t slen = 0; | |
320 | ||
321 | for (;;) { | |
322 | int c = getc(stream); | |
323 | ||
324 | switch (c) { | |
325 | case '\n': | |
326 | if (add_byte(c, &line, slen, n) < 0) | |
327 | goto e_out; | |
328 | slen++; | |
329 | /* fall through */ | |
330 | case EOF: | |
331 | if (add_byte('\0', &line, slen, n) < 0) | |
332 | goto e_out; | |
333 | *lineptr = line; | |
334 | if (slen == 0) | |
335 | return -1; | |
336 | return slen; | |
337 | default: | |
338 | if (add_byte(c, &line, slen, n) < 0) | |
339 | goto e_out; | |
340 | slen++; | |
341 | } | |
342 | } | |
343 | ||
344 | e_out: | |
345 | line[slen-1] = '\0'; | |
346 | *lineptr = line; | |
347 | return -1; | |
348 | } | |
349 | ||
669bfad9 | 350 | int conf_read_simple(const char *name, int def) |
1da177e4 LT |
351 | { |
352 | FILE *in = NULL; | |
1a7a8c6f CS |
353 | char *line = NULL; |
354 | size_t line_asize = 0; | |
1da177e4 | 355 | char *p, *p2; |
1da177e4 | 356 | struct symbol *sym; |
669bfad9 | 357 | int i, def_flags; |
1da177e4 LT |
358 | |
359 | if (name) { | |
360 | in = zconf_fopen(name); | |
361 | } else { | |
face4374 RZ |
362 | struct property *prop; |
363 | ||
14cdd3c4 | 364 | name = conf_get_configname(); |
ddc97cac RZ |
365 | in = zconf_fopen(name); |
366 | if (in) | |
367 | goto load; | |
bfc10001 | 368 | sym_add_change_count(1); |
6b87b70c | 369 | if (!sym_defconfig_list) |
face4374 RZ |
370 | return 1; |
371 | ||
372 | for_all_defaults(sym_defconfig_list, prop) { | |
373 | if (expr_calc_value(prop->visible.expr) == no || | |
374 | prop->expr->type != E_SYMBOL) | |
375 | continue; | |
104daea1 MY |
376 | sym_calc_value(prop->expr->left.sym); |
377 | name = sym_get_string_value(prop->expr->left.sym); | |
1da177e4 LT |
378 | in = zconf_fopen(name); |
379 | if (in) { | |
694c49a7 | 380 | conf_message("using defaults found in %s", |
42368c37 | 381 | name); |
ddc97cac | 382 | goto load; |
1da177e4 LT |
383 | } |
384 | } | |
385 | } | |
1da177e4 LT |
386 | if (!in) |
387 | return 1; | |
388 | ||
ddc97cac | 389 | load: |
c1a0f5e3 RZ |
390 | conf_filename = name; |
391 | conf_lineno = 0; | |
392 | conf_warnings = 0; | |
c1a0f5e3 | 393 | |
669bfad9 | 394 | def_flags = SYMBOL_DEF << def; |
1da177e4 | 395 | for_all_symbols(i, sym) { |
669bfad9 RZ |
396 | sym->flags |= SYMBOL_CHANGED; |
397 | sym->flags &= ~(def_flags|SYMBOL_VALID); | |
490f1617 YM |
398 | if (sym_is_choice(sym)) |
399 | sym->flags |= def_flags; | |
1da177e4 LT |
400 | switch (sym->type) { |
401 | case S_INT: | |
402 | case S_HEX: | |
403 | case S_STRING: | |
669bfad9 RZ |
404 | if (sym->def[def].val) |
405 | free(sym->def[def].val); | |
d8fc3200 | 406 | /* fall through */ |
1da177e4 | 407 | default: |
669bfad9 RZ |
408 | sym->def[def].val = NULL; |
409 | sym->def[def].tri = no; | |
1da177e4 LT |
410 | } |
411 | } | |
412 | ||
1a7a8c6f | 413 | while (compat_getline(&line, &line_asize, in) != -1) { |
c1a0f5e3 | 414 | conf_lineno++; |
1da177e4 | 415 | sym = NULL; |
8baefd30 | 416 | if (line[0] == '#') { |
ffb5957b | 417 | if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) |
1da177e4 | 418 | continue; |
ffb5957b | 419 | p = strchr(line + 2 + strlen(CONFIG_), ' '); |
1da177e4 LT |
420 | if (!p) |
421 | continue; | |
422 | *p++ = 0; | |
423 | if (strncmp(p, "is not set", 10)) | |
424 | continue; | |
669bfad9 | 425 | if (def == S_DEF_USER) { |
ffb5957b | 426 | sym = sym_find(line + 2 + strlen(CONFIG_)); |
661b0680 | 427 | if (!sym) { |
428 | sym_add_change_count(1); | |
75889e9b | 429 | continue; |
661b0680 | 430 | } |
669bfad9 | 431 | } else { |
ffb5957b | 432 | sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); |
669bfad9 RZ |
433 | if (sym->type == S_UNKNOWN) |
434 | sym->type = S_BOOLEAN; | |
435 | } | |
436 | if (sym->flags & def_flags) { | |
d84876f9 | 437 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 LT |
438 | } |
439 | switch (sym->type) { | |
440 | case S_BOOLEAN: | |
441 | case S_TRISTATE: | |
669bfad9 RZ |
442 | sym->def[def].tri = no; |
443 | sym->flags |= def_flags; | |
1da177e4 LT |
444 | break; |
445 | default: | |
446 | ; | |
447 | } | |
ffb5957b AL |
448 | } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { |
449 | p = strchr(line + strlen(CONFIG_), '='); | |
1da177e4 LT |
450 | if (!p) |
451 | continue; | |
452 | *p++ = 0; | |
453 | p2 = strchr(p, '\n'); | |
d3660a8c MW |
454 | if (p2) { |
455 | *p2-- = 0; | |
456 | if (*p2 == '\r') | |
457 | *p2 = 0; | |
458 | } | |
2aabbed6 MY |
459 | |
460 | sym = sym_find(line + strlen(CONFIG_)); | |
461 | if (!sym) { | |
462 | if (def == S_DEF_AUTO) | |
463 | /* | |
464 | * Reading from include/config/auto.conf | |
465 | * If CONFIG_FOO previously existed in | |
466 | * auto.conf but it is missing now, | |
467 | * include/config/foo.h must be touched. | |
468 | */ | |
469 | conf_touch_dep(line + strlen(CONFIG_)); | |
470 | else | |
661b0680 | 471 | sym_add_change_count(1); |
2aabbed6 | 472 | continue; |
669bfad9 | 473 | } |
2aabbed6 | 474 | |
669bfad9 | 475 | if (sym->flags & def_flags) { |
d84876f9 | 476 | conf_warning("override: reassigning to symbol %s", sym->name); |
1da177e4 | 477 | } |
9c900a9c SR |
478 | if (conf_set_sym_val(sym, def, def_flags, p)) |
479 | continue; | |
8baefd30 AL |
480 | } else { |
481 | if (line[0] != '\r' && line[0] != '\n') | |
a4663911 PB |
482 | conf_warning("unexpected data: %.*s", |
483 | (int)strcspn(line, "\r\n"), line); | |
484 | ||
1da177e4 LT |
485 | continue; |
486 | } | |
75889e9b | 487 | |
1da177e4 LT |
488 | if (sym && sym_is_choice_value(sym)) { |
489 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
669bfad9 | 490 | switch (sym->def[def].tri) { |
1da177e4 LT |
491 | case no: |
492 | break; | |
493 | case mod: | |
669bfad9 | 494 | if (cs->def[def].tri == yes) { |
c1a0f5e3 | 495 | conf_warning("%s creates inconsistent choice state", sym->name); |
490f1617 | 496 | cs->flags &= ~def_flags; |
c1a0f5e3 | 497 | } |
1da177e4 LT |
498 | break; |
499 | case yes: | |
d84876f9 JE |
500 | if (cs->def[def].tri != no) |
501 | conf_warning("override: %s changes choice state", sym->name); | |
502 | cs->def[def].val = sym; | |
1da177e4 LT |
503 | break; |
504 | } | |
d6ee3576 | 505 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); |
1da177e4 LT |
506 | } |
507 | } | |
1a7a8c6f | 508 | free(line); |
1da177e4 | 509 | fclose(in); |
90389160 RZ |
510 | return 0; |
511 | } | |
512 | ||
513 | int conf_read(const char *name) | |
514 | { | |
5d09598d | 515 | struct symbol *sym; |
84dd95d4 | 516 | int conf_unsaved = 0; |
5d09598d | 517 | int i; |
90389160 | 518 | |
bfc10001 | 519 | sym_set_change_count(0); |
ddc97cac | 520 | |
6b87b70c AV |
521 | if (conf_read_simple(name, S_DEF_USER)) { |
522 | sym_calc_value(modules_sym); | |
90389160 | 523 | return 1; |
6b87b70c AV |
524 | } |
525 | ||
526 | sym_calc_value(modules_sym); | |
90389160 | 527 | |
1da177e4 LT |
528 | for_all_symbols(i, sym) { |
529 | sym_calc_value(sym); | |
693359f7 | 530 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE)) |
5d09598d | 531 | continue; |
c1a0f5e3 RZ |
532 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { |
533 | /* check that calculated value agrees with saved value */ | |
534 | switch (sym->type) { | |
535 | case S_BOOLEAN: | |
536 | case S_TRISTATE: | |
e3cd5136 | 537 | if (sym->def[S_DEF_USER].tri == sym_get_tristate_value(sym)) |
5d09598d | 538 | continue; |
e3cd5136 | 539 | break; |
c1a0f5e3 | 540 | default: |
0c1822e6 | 541 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
5d09598d | 542 | continue; |
c1a0f5e3 RZ |
543 | break; |
544 | } | |
545 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) | |
546 | /* no previous value and not saved */ | |
5d09598d | 547 | continue; |
c1a0f5e3 RZ |
548 | conf_unsaved++; |
549 | /* maybe print value in verbose mode... */ | |
d8982ba1 RZ |
550 | } |
551 | ||
552 | for_all_symbols(i, sym) { | |
1da177e4 | 553 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
d8982ba1 RZ |
554 | /* Reset values of generates values, so they'll appear |
555 | * as new, if they should become visible, but that | |
556 | * doesn't quite work if the Kconfig and the saved | |
557 | * configuration disagree. | |
558 | */ | |
559 | if (sym->visible == no && !conf_unsaved) | |
669bfad9 | 560 | sym->flags &= ~SYMBOL_DEF_USER; |
1da177e4 LT |
561 | switch (sym->type) { |
562 | case S_STRING: | |
563 | case S_INT: | |
564 | case S_HEX: | |
d8982ba1 RZ |
565 | /* Reset a string value if it's out of range */ |
566 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) | |
567 | break; | |
568 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); | |
569 | conf_unsaved++; | |
570 | break; | |
1da177e4 LT |
571 | default: |
572 | break; | |
573 | } | |
574 | } | |
1da177e4 LT |
575 | } |
576 | ||
bfc10001 | 577 | sym_add_change_count(conf_warnings || conf_unsaved); |
1da177e4 LT |
578 | |
579 | return 0; | |
580 | } | |
581 | ||
e54e692b AL |
582 | /* |
583 | * Kconfig configuration printer | |
584 | * | |
585 | * This printer is used when generating the resulting configuration after | |
586 | * kconfig invocation and `defconfig' files. Unset symbol might be omitted by | |
587 | * passing a non-NULL argument to the printer. | |
588 | * | |
589 | */ | |
590 | static void | |
591 | kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
592 | { | |
593 | ||
594 | switch (sym->type) { | |
595 | case S_BOOLEAN: | |
596 | case S_TRISTATE: | |
597 | if (*value == 'n') { | |
598 | bool skip_unset = (arg != NULL); | |
599 | ||
600 | if (!skip_unset) | |
601 | fprintf(fp, "# %s%s is not set\n", | |
602 | CONFIG_, sym->name); | |
603 | return; | |
604 | } | |
605 | break; | |
606 | default: | |
607 | break; | |
608 | } | |
609 | ||
610 | fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value); | |
611 | } | |
612 | ||
613 | static void | |
614 | kconfig_print_comment(FILE *fp, const char *value, void *arg) | |
49192f26 | 615 | { |
e54e692b AL |
616 | const char *p = value; |
617 | size_t l; | |
618 | ||
619 | for (;;) { | |
620 | l = strcspn(p, "\n"); | |
621 | fprintf(fp, "#"); | |
49192f26 | 622 | if (l) { |
e54e692b | 623 | fprintf(fp, " "); |
70cc01e7 | 624 | xfwrite(p, l, 1, fp); |
e54e692b | 625 | p += l; |
49192f26 | 626 | } |
e54e692b AL |
627 | fprintf(fp, "\n"); |
628 | if (*p++ == '\0') | |
49192f26 | 629 | break; |
49192f26 | 630 | } |
49192f26 SR |
631 | } |
632 | ||
e54e692b | 633 | static struct conf_printer kconfig_printer_cb = |
49192f26 | 634 | { |
e54e692b AL |
635 | .print_symbol = kconfig_print_symbol, |
636 | .print_comment = kconfig_print_comment, | |
637 | }; | |
638 | ||
639 | /* | |
640 | * Header printer | |
641 | * | |
642 | * This printer is used when generating the `include/generated/autoconf.h' file. | |
643 | */ | |
644 | static void | |
645 | header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
646 | { | |
49192f26 | 647 | |
0dce6310 | 648 | switch (sym->type) { |
49192f26 | 649 | case S_BOOLEAN: |
eb4cf5a6 AL |
650 | case S_TRISTATE: { |
651 | const char *suffix = ""; | |
652 | ||
e54e692b AL |
653 | switch (*value) { |
654 | case 'n': | |
2a11c8ea | 655 | break; |
e54e692b AL |
656 | case 'm': |
657 | suffix = "_MODULE"; | |
eb4cf5a6 | 658 | /* fall through */ |
e54e692b | 659 | default: |
2a11c8ea MM |
660 | fprintf(fp, "#define %s%s%s 1\n", |
661 | CONFIG_, sym->name, suffix); | |
49192f26 | 662 | } |
eb4cf5a6 AL |
663 | break; |
664 | } | |
665 | case S_HEX: { | |
666 | const char *prefix = ""; | |
667 | ||
668 | if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) | |
669 | prefix = "0x"; | |
670 | fprintf(fp, "#define %s%s %s%s\n", | |
671 | CONFIG_, sym->name, prefix, value); | |
672 | break; | |
673 | } | |
674 | case S_STRING: | |
675 | case S_INT: | |
676 | fprintf(fp, "#define %s%s %s\n", | |
677 | CONFIG_, sym->name, value); | |
49192f26 | 678 | break; |
e54e692b | 679 | default: |
49192f26 | 680 | break; |
e54e692b AL |
681 | } |
682 | ||
e54e692b AL |
683 | } |
684 | ||
685 | static void | |
686 | header_print_comment(FILE *fp, const char *value, void *arg) | |
687 | { | |
688 | const char *p = value; | |
689 | size_t l; | |
690 | ||
691 | fprintf(fp, "/*\n"); | |
692 | for (;;) { | |
693 | l = strcspn(p, "\n"); | |
694 | fprintf(fp, " *"); | |
695 | if (l) { | |
696 | fprintf(fp, " "); | |
70cc01e7 | 697 | xfwrite(p, l, 1, fp); |
e54e692b AL |
698 | p += l; |
699 | } | |
700 | fprintf(fp, "\n"); | |
701 | if (*p++ == '\0') | |
702 | break; | |
703 | } | |
704 | fprintf(fp, " */\n"); | |
705 | } | |
706 | ||
707 | static struct conf_printer header_printer_cb = | |
708 | { | |
709 | .print_symbol = header_print_symbol, | |
710 | .print_comment = header_print_comment, | |
711 | }; | |
712 | ||
e54e692b AL |
713 | /* |
714 | * Tristate printer | |
715 | * | |
716 | * This printer is used when generating the `include/config/tristate.conf' file. | |
717 | */ | |
718 | static void | |
719 | tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) | |
720 | { | |
721 | ||
722 | if (sym->type == S_TRISTATE && *value != 'n') | |
723 | fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value)); | |
724 | } | |
725 | ||
726 | static struct conf_printer tristate_printer_cb = | |
727 | { | |
728 | .print_symbol = tristate_print_symbol, | |
729 | .print_comment = kconfig_print_comment, | |
730 | }; | |
731 | ||
732 | static void conf_write_symbol(FILE *fp, struct symbol *sym, | |
733 | struct conf_printer *printer, void *printer_arg) | |
734 | { | |
735 | const char *str; | |
736 | ||
737 | switch (sym->type) { | |
49192f26 SR |
738 | case S_UNKNOWN: |
739 | break; | |
e54e692b AL |
740 | case S_STRING: |
741 | str = sym_get_string_value(sym); | |
742 | str = sym_escape_string_value(str); | |
743 | printer->print_symbol(fp, sym, str, printer_arg); | |
744 | free((void *)str); | |
745 | break; | |
746 | default: | |
747 | str = sym_get_string_value(sym); | |
748 | printer->print_symbol(fp, sym, str, printer_arg); | |
49192f26 SR |
749 | } |
750 | } | |
751 | ||
e54e692b AL |
752 | static void |
753 | conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg) | |
754 | { | |
755 | char buf[256]; | |
756 | ||
757 | snprintf(buf, sizeof(buf), | |
758 | "\n" | |
759 | "Automatically generated file; DO NOT EDIT.\n" | |
760 | "%s\n", | |
761 | rootmenu.prompt->text); | |
762 | ||
763 | printer->print_comment(fp, buf, printer_arg); | |
764 | } | |
765 | ||
7cf3d73b SR |
766 | /* |
767 | * Write out a minimal config. | |
768 | * All values that has default values are skipped as this is redundant. | |
769 | */ | |
770 | int conf_write_defconfig(const char *filename) | |
771 | { | |
772 | struct symbol *sym; | |
773 | struct menu *menu; | |
774 | FILE *out; | |
775 | ||
776 | out = fopen(filename, "w"); | |
777 | if (!out) | |
778 | return 1; | |
779 | ||
780 | sym_clear_all_valid(); | |
781 | ||
782 | /* Traverse all menus to find all relevant symbols */ | |
783 | menu = rootmenu.list; | |
784 | ||
785 | while (menu != NULL) | |
786 | { | |
787 | sym = menu->sym; | |
788 | if (sym == NULL) { | |
789 | if (!menu_is_visible(menu)) | |
790 | goto next_menu; | |
791 | } else if (!sym_is_choice(sym)) { | |
792 | sym_calc_value(sym); | |
793 | if (!(sym->flags & SYMBOL_WRITE)) | |
794 | goto next_menu; | |
795 | sym->flags &= ~SYMBOL_WRITE; | |
796 | /* If we cannot change the symbol - skip */ | |
baa23ec8 | 797 | if (!sym_is_changeable(sym)) |
7cf3d73b SR |
798 | goto next_menu; |
799 | /* If symbol equals to default value - skip */ | |
800 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) | |
801 | goto next_menu; | |
802 | ||
803 | /* | |
804 | * If symbol is a choice value and equals to the | |
805 | * default for a choice - skip. | |
84062dd3 SR |
806 | * But only if value is bool and equal to "y" and |
807 | * choice is not "optional". | |
808 | * (If choice is "optional" then all values can be "n") | |
7cf3d73b SR |
809 | */ |
810 | if (sym_is_choice_value(sym)) { | |
811 | struct symbol *cs; | |
812 | struct symbol *ds; | |
813 | ||
814 | cs = prop_get_symbol(sym_get_choice_prop(sym)); | |
815 | ds = sym_choice_default(cs); | |
84062dd3 | 816 | if (!sym_is_optional(cs) && sym == ds) { |
801690ca SR |
817 | if ((sym->type == S_BOOLEAN) && |
818 | sym_get_tristate_value(sym) == yes) | |
7cf3d73b SR |
819 | goto next_menu; |
820 | } | |
821 | } | |
e54e692b | 822 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); |
7cf3d73b SR |
823 | } |
824 | next_menu: | |
825 | if (menu->list != NULL) { | |
826 | menu = menu->list; | |
827 | } | |
828 | else if (menu->next != NULL) { | |
829 | menu = menu->next; | |
830 | } else { | |
831 | while ((menu = menu->parent)) { | |
832 | if (menu->next != NULL) { | |
833 | menu = menu->next; | |
834 | break; | |
835 | } | |
836 | } | |
837 | } | |
838 | } | |
839 | fclose(out); | |
840 | return 0; | |
841 | } | |
842 | ||
1da177e4 LT |
843 | int conf_write(const char *name) |
844 | { | |
c955ccaf | 845 | FILE *out; |
1da177e4 LT |
846 | struct symbol *sym; |
847 | struct menu *menu; | |
1da177e4 | 848 | const char *str; |
ceb7f329 | 849 | char tmpname[PATH_MAX + 1], oldname[PATH_MAX + 1]; |
1da177e4 | 850 | char *env; |
0c5b6c28 | 851 | int i; |
aff11cd9 | 852 | bool need_newline = false; |
1da177e4 | 853 | |
ceb7f329 MY |
854 | if (!name) |
855 | name = conf_get_configname(); | |
856 | ||
857 | if (!*name) { | |
858 | fprintf(stderr, "config name is empty\n"); | |
859 | return -1; | |
860 | } | |
861 | ||
862 | if (is_dir(name)) { | |
863 | fprintf(stderr, "%s: Is a directory\n", name); | |
864 | return -1; | |
865 | } | |
866 | ||
580c5b3e MY |
867 | if (make_parent_dir(name)) |
868 | return -1; | |
869 | ||
14cdd3c4 | 870 | env = getenv("KCONFIG_OVERWRITECONFIG"); |
ceb7f329 | 871 | if (env && *env) { |
14cdd3c4 | 872 | *tmpname = 0; |
ceb7f329 MY |
873 | out = fopen(name, "w"); |
874 | } else { | |
875 | snprintf(tmpname, sizeof(tmpname), "%s.%d.tmp", | |
876 | name, (int)getpid()); | |
877 | out = fopen(tmpname, "w"); | |
14cdd3c4 | 878 | } |
1da177e4 LT |
879 | if (!out) |
880 | return 1; | |
14cdd3c4 | 881 | |
e54e692b | 882 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
1da177e4 | 883 | |
b3214293 | 884 | if (!conf_get_changed()) |
1da177e4 LT |
885 | sym_clear_all_valid(); |
886 | ||
887 | menu = rootmenu.list; | |
888 | while (menu) { | |
889 | sym = menu->sym; | |
890 | if (!sym) { | |
891 | if (!menu_is_visible(menu)) | |
892 | goto next; | |
893 | str = menu_get_prompt(menu); | |
894 | fprintf(out, "\n" | |
895 | "#\n" | |
896 | "# %s\n" | |
897 | "#\n", str); | |
aff11cd9 | 898 | need_newline = false; |
8e2442a5 MY |
899 | } else if (!(sym->flags & SYMBOL_CHOICE) && |
900 | !(sym->flags & SYMBOL_WRITTEN)) { | |
1da177e4 LT |
901 | sym_calc_value(sym); |
902 | if (!(sym->flags & SYMBOL_WRITE)) | |
903 | goto next; | |
aff11cd9 AP |
904 | if (need_newline) { |
905 | fprintf(out, "\n"); | |
906 | need_newline = false; | |
907 | } | |
8e2442a5 | 908 | sym->flags |= SYMBOL_WRITTEN; |
e54e692b | 909 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); |
1da177e4 LT |
910 | } |
911 | ||
49192f26 | 912 | next: |
1da177e4 LT |
913 | if (menu->list) { |
914 | menu = menu->list; | |
915 | continue; | |
916 | } | |
917 | if (menu->next) | |
918 | menu = menu->next; | |
919 | else while ((menu = menu->parent)) { | |
aff11cd9 AP |
920 | if (!menu->sym && menu_is_visible(menu) && |
921 | menu != &rootmenu) { | |
922 | str = menu_get_prompt(menu); | |
923 | fprintf(out, "# end of %s\n", str); | |
924 | need_newline = true; | |
925 | } | |
1da177e4 LT |
926 | if (menu->next) { |
927 | menu = menu->next; | |
928 | break; | |
929 | } | |
930 | } | |
931 | } | |
932 | fclose(out); | |
14cdd3c4 | 933 | |
0c5b6c28 VB |
934 | for_all_symbols(i, sym) |
935 | sym->flags &= ~SYMBOL_WRITTEN; | |
936 | ||
14cdd3c4 | 937 | if (*tmpname) { |
67424f61 MY |
938 | if (is_same(name, tmpname)) { |
939 | conf_message("No change to %s", name); | |
940 | unlink(tmpname); | |
941 | sym_set_change_count(0); | |
942 | return 0; | |
943 | } | |
944 | ||
ceb7f329 MY |
945 | snprintf(oldname, sizeof(oldname), "%s.old", name); |
946 | rename(name, oldname); | |
947 | if (rename(tmpname, name)) | |
14cdd3c4 | 948 | return 1; |
1da177e4 | 949 | } |
1da177e4 | 950 | |
ceb7f329 | 951 | conf_message("configuration written to %s", name); |
ddc97cac | 952 | |
bfc10001 | 953 | sym_set_change_count(0); |
1da177e4 LT |
954 | |
955 | return 0; | |
956 | } | |
c955ccaf | 957 | |
a2ff4040 MY |
958 | /* write a dependency file as used by kbuild to track dependencies */ |
959 | static int conf_write_dep(const char *name) | |
960 | { | |
961 | struct file *file; | |
962 | FILE *out; | |
963 | ||
a2ff4040 MY |
964 | out = fopen("..config.tmp", "w"); |
965 | if (!out) | |
966 | return 1; | |
967 | fprintf(out, "deps_config := \\\n"); | |
968 | for (file = file_list; file; file = file->next) { | |
969 | if (file->next) | |
970 | fprintf(out, "\t%s \\\n", file->name); | |
971 | else | |
972 | fprintf(out, "\t%s\n", file->name); | |
973 | } | |
974 | fprintf(out, "\n%s: \\\n" | |
975 | "\t$(deps_config)\n\n", conf_get_autoconfig_name()); | |
976 | ||
977 | env_write_dep(out, conf_get_autoconfig_name()); | |
978 | ||
979 | fprintf(out, "\n$(deps_config): ;\n"); | |
980 | fclose(out); | |
79123b13 MY |
981 | |
982 | if (make_parent_dir(name)) | |
983 | return 1; | |
a2ff4040 MY |
984 | rename("..config.tmp", name); |
985 | return 0; | |
986 | } | |
987 | ||
0849d212 | 988 | static int conf_touch_deps(void) |
2e3646e5 | 989 | { |
12122f62 | 990 | const char *name; |
2e3646e5 | 991 | struct symbol *sym; |
1508fec8 MY |
992 | int res, i; |
993 | ||
994 | strcpy(depfile_path, "include/config/"); | |
995 | depfile_prefix_len = strlen(depfile_path); | |
2e3646e5 | 996 | |
12122f62 | 997 | name = conf_get_autoconfig_name(); |
2e3646e5 | 998 | conf_read_simple(name, S_DEF_AUTO); |
6b87b70c | 999 | sym_calc_value(modules_sym); |
2e3646e5 | 1000 | |
2e3646e5 RZ |
1001 | for_all_symbols(i, sym) { |
1002 | sym_calc_value(sym); | |
693359f7 | 1003 | if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name) |
2e3646e5 RZ |
1004 | continue; |
1005 | if (sym->flags & SYMBOL_WRITE) { | |
1006 | if (sym->flags & SYMBOL_DEF_AUTO) { | |
1007 | /* | |
1008 | * symbol has old and new value, | |
1009 | * so compare them... | |
1010 | */ | |
1011 | switch (sym->type) { | |
1012 | case S_BOOLEAN: | |
1013 | case S_TRISTATE: | |
1014 | if (sym_get_tristate_value(sym) == | |
1015 | sym->def[S_DEF_AUTO].tri) | |
1016 | continue; | |
1017 | break; | |
1018 | case S_STRING: | |
1019 | case S_HEX: | |
1020 | case S_INT: | |
1021 | if (!strcmp(sym_get_string_value(sym), | |
1022 | sym->def[S_DEF_AUTO].val)) | |
1023 | continue; | |
1024 | break; | |
1025 | default: | |
1026 | break; | |
1027 | } | |
1028 | } else { | |
1029 | /* | |
1030 | * If there is no old value, only 'no' (unset) | |
1031 | * is allowed as new value. | |
1032 | */ | |
1033 | switch (sym->type) { | |
1034 | case S_BOOLEAN: | |
1035 | case S_TRISTATE: | |
1036 | if (sym_get_tristate_value(sym) == no) | |
1037 | continue; | |
1038 | break; | |
1039 | default: | |
1040 | break; | |
1041 | } | |
1042 | } | |
1043 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) | |
1044 | /* There is neither an old nor a new value. */ | |
1045 | continue; | |
1046 | /* else | |
1047 | * There is an old value, but no new value ('no' (unset) | |
1048 | * isn't saved in auto.conf, so the old value is always | |
1049 | * different from 'no'). | |
1050 | */ | |
1051 | ||
1508fec8 MY |
1052 | res = conf_touch_dep(sym->name); |
1053 | if (res) | |
1054 | return res; | |
2e3646e5 | 1055 | } |
2e3646e5 | 1056 | |
1508fec8 | 1057 | return 0; |
2e3646e5 RZ |
1058 | } |
1059 | ||
00c864f8 | 1060 | int conf_write_autoconf(int overwrite) |
c955ccaf RZ |
1061 | { |
1062 | struct symbol *sym; | |
12122f62 | 1063 | const char *name; |
00c864f8 | 1064 | const char *autoconf_name = conf_get_autoconfig_name(); |
bc081dd6 | 1065 | FILE *out, *tristate, *out_h; |
49192f26 | 1066 | int i; |
c955ccaf | 1067 | |
00c864f8 MY |
1068 | if (!overwrite && is_present(autoconf_name)) |
1069 | return 0; | |
1070 | ||
a2ff4040 | 1071 | conf_write_dep("include/config/auto.conf.cmd"); |
c955ccaf | 1072 | |
0849d212 | 1073 | if (conf_touch_deps()) |
2e3646e5 RZ |
1074 | return 1; |
1075 | ||
c955ccaf RZ |
1076 | out = fopen(".tmpconfig", "w"); |
1077 | if (!out) | |
1078 | return 1; | |
1079 | ||
bc081dd6 MM |
1080 | tristate = fopen(".tmpconfig_tristate", "w"); |
1081 | if (!tristate) { | |
1082 | fclose(out); | |
1083 | return 1; | |
1084 | } | |
1085 | ||
c955ccaf RZ |
1086 | out_h = fopen(".tmpconfig.h", "w"); |
1087 | if (!out_h) { | |
1088 | fclose(out); | |
bc081dd6 | 1089 | fclose(tristate); |
c955ccaf RZ |
1090 | return 1; |
1091 | } | |
1092 | ||
e54e692b AL |
1093 | conf_write_heading(out, &kconfig_printer_cb, NULL); |
1094 | ||
1095 | conf_write_heading(tristate, &tristate_printer_cb, NULL); | |
1096 | ||
1097 | conf_write_heading(out_h, &header_printer_cb, NULL); | |
c955ccaf | 1098 | |
c955ccaf RZ |
1099 | for_all_symbols(i, sym) { |
1100 | sym_calc_value(sym); | |
a9596135 | 1101 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) |
c955ccaf | 1102 | continue; |
49192f26 | 1103 | |
a9596135 | 1104 | /* write symbol to auto.conf, tristate and header files */ |
e54e692b | 1105 | conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); |
49192f26 | 1106 | |
e54e692b AL |
1107 | conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); |
1108 | ||
1109 | conf_write_symbol(out_h, sym, &header_printer_cb, NULL); | |
c955ccaf RZ |
1110 | } |
1111 | fclose(out); | |
bc081dd6 | 1112 | fclose(tristate); |
c955ccaf RZ |
1113 | fclose(out_h); |
1114 | ||
1115 | name = getenv("KCONFIG_AUTOHEADER"); | |
1116 | if (!name) | |
264a2683 | 1117 | name = "include/generated/autoconf.h"; |
79123b13 MY |
1118 | if (make_parent_dir(name)) |
1119 | return 1; | |
c955ccaf RZ |
1120 | if (rename(".tmpconfig.h", name)) |
1121 | return 1; | |
79123b13 | 1122 | |
bc081dd6 MM |
1123 | name = getenv("KCONFIG_TRISTATE"); |
1124 | if (!name) | |
1125 | name = "include/config/tristate.conf"; | |
79123b13 MY |
1126 | if (make_parent_dir(name)) |
1127 | return 1; | |
bc081dd6 MM |
1128 | if (rename(".tmpconfig_tristate", name)) |
1129 | return 1; | |
79123b13 | 1130 | |
00c864f8 | 1131 | if (make_parent_dir(autoconf_name)) |
79123b13 | 1132 | return 1; |
c955ccaf RZ |
1133 | /* |
1134 | * This must be the last step, kbuild has a dependency on auto.conf | |
1135 | * and this marks the successful completion of the previous steps. | |
1136 | */ | |
00c864f8 | 1137 | if (rename(".tmpconfig", autoconf_name)) |
c955ccaf RZ |
1138 | return 1; |
1139 | ||
1140 | return 0; | |
1141 | } | |
b3214293 | 1142 | |
bfc10001 | 1143 | static int sym_change_count; |
3b354c55 | 1144 | static void (*conf_changed_callback)(void); |
bfc10001 KW |
1145 | |
1146 | void sym_set_change_count(int count) | |
1147 | { | |
3b354c55 | 1148 | int _sym_change_count = sym_change_count; |
bfc10001 | 1149 | sym_change_count = count; |
3b354c55 KW |
1150 | if (conf_changed_callback && |
1151 | (bool)_sym_change_count != (bool)count) | |
1152 | conf_changed_callback(); | |
bfc10001 KW |
1153 | } |
1154 | ||
1155 | void sym_add_change_count(int count) | |
1156 | { | |
3b354c55 | 1157 | sym_set_change_count(count + sym_change_count); |
bfc10001 KW |
1158 | } |
1159 | ||
b3214293 KW |
1160 | bool conf_get_changed(void) |
1161 | { | |
1162 | return sym_change_count; | |
1163 | } | |
3b354c55 KW |
1164 | |
1165 | void conf_set_changed_callback(void (*fn)(void)) | |
1166 | { | |
1167 | conf_changed_callback = fn; | |
1168 | } | |
dc7862e5 | 1169 | |
3b9a19e0 | 1170 | static bool randomize_choice_values(struct symbol *csym) |
a64b44ea SR |
1171 | { |
1172 | struct property *prop; | |
1173 | struct symbol *sym; | |
1174 | struct expr *e; | |
1175 | int cnt, def; | |
dc7862e5 | 1176 | |
a64b44ea | 1177 | /* |
579fb8e7 | 1178 | * If choice is mod then we may have more items selected |
a64b44ea SR |
1179 | * and if no then no-one. |
1180 | * In both cases stop. | |
1181 | */ | |
1182 | if (csym->curr.tri != yes) | |
3b9a19e0 | 1183 | return false; |
a64b44ea SR |
1184 | |
1185 | prop = sym_get_choice_prop(csym); | |
1186 | ||
1187 | /* count entries in choice block */ | |
1188 | cnt = 0; | |
1189 | expr_list_for_each_sym(prop->expr, e, sym) | |
1190 | cnt++; | |
1191 | ||
1192 | /* | |
1193 | * find a random value and set it to yes, | |
1194 | * set the rest to no so we have only one set | |
1195 | */ | |
1196 | def = (rand() % cnt); | |
1197 | ||
1198 | cnt = 0; | |
1199 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1200 | if (def == cnt++) { | |
1201 | sym->def[S_DEF_USER].tri = yes; | |
1202 | csym->def[S_DEF_USER].val = sym; | |
1203 | } | |
1204 | else { | |
1205 | sym->def[S_DEF_USER].tri = no; | |
1206 | } | |
e6abf12a YM |
1207 | sym->flags |= SYMBOL_DEF_USER; |
1208 | /* clear VALID to get value calculated */ | |
1209 | sym->flags &= ~SYMBOL_VALID; | |
a64b44ea SR |
1210 | } |
1211 | csym->flags |= SYMBOL_DEF_USER; | |
1212 | /* clear VALID to get value calculated */ | |
1213 | csym->flags &= ~(SYMBOL_VALID); | |
3b9a19e0 YM |
1214 | |
1215 | return true; | |
a64b44ea SR |
1216 | } |
1217 | ||
fbe98bb9 | 1218 | void set_all_choice_values(struct symbol *csym) |
dc7862e5 | 1219 | { |
dc7862e5 | 1220 | struct property *prop; |
a64b44ea | 1221 | struct symbol *sym; |
dc7862e5 | 1222 | struct expr *e; |
a64b44ea SR |
1223 | |
1224 | prop = sym_get_choice_prop(csym); | |
1225 | ||
1226 | /* | |
1227 | * Set all non-assinged choice values to no | |
1228 | */ | |
1229 | expr_list_for_each_sym(prop->expr, e, sym) { | |
1230 | if (!sym_has_value(sym)) | |
1231 | sym->def[S_DEF_USER].tri = no; | |
1232 | } | |
1233 | csym->flags |= SYMBOL_DEF_USER; | |
1234 | /* clear VALID to get value calculated */ | |
fbe98bb9 | 1235 | csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES); |
a64b44ea SR |
1236 | } |
1237 | ||
3b9a19e0 | 1238 | bool conf_set_all_new_symbols(enum conf_def_mode mode) |
a64b44ea SR |
1239 | { |
1240 | struct symbol *sym, *csym; | |
b92d804a | 1241 | int i, cnt, pby, pty, ptm; /* pby: probability of bool = y |
e43956e6 YM |
1242 | * pty: probability of tristate = y |
1243 | * ptm: probability of tristate = m | |
1244 | */ | |
1245 | ||
1246 | pby = 50; pty = ptm = 33; /* can't go as the default in switch-case | |
1247 | * below, otherwise gcc whines about | |
1248 | * -Wmaybe-uninitialized */ | |
1249 | if (mode == def_random) { | |
1250 | int n, p[3]; | |
1251 | char *env = getenv("KCONFIG_PROBABILITY"); | |
1252 | n = 0; | |
1253 | while( env && *env ) { | |
1254 | char *endp; | |
1255 | int tmp = strtol( env, &endp, 10 ); | |
1256 | if( tmp >= 0 && tmp <= 100 ) { | |
1257 | p[n++] = tmp; | |
1258 | } else { | |
1259 | errno = ERANGE; | |
1260 | perror( "KCONFIG_PROBABILITY" ); | |
1261 | exit( 1 ); | |
1262 | } | |
1263 | env = (*endp == ':') ? endp+1 : endp; | |
1264 | if( n >=3 ) { | |
1265 | break; | |
1266 | } | |
1267 | } | |
1268 | switch( n ) { | |
1269 | case 1: | |
1270 | pby = p[0]; ptm = pby/2; pty = pby-ptm; | |
1271 | break; | |
1272 | case 2: | |
1273 | pty = p[0]; ptm = p[1]; pby = pty + ptm; | |
1274 | break; | |
1275 | case 3: | |
1276 | pby = p[0]; pty = p[1]; ptm = p[2]; | |
1277 | break; | |
1278 | } | |
1279 | ||
1280 | if( pty+ptm > 100 ) { | |
1281 | errno = ERANGE; | |
1282 | perror( "KCONFIG_PROBABILITY" ); | |
1283 | exit( 1 ); | |
1284 | } | |
1285 | } | |
3b9a19e0 | 1286 | bool has_changed = false; |
dc7862e5 RZ |
1287 | |
1288 | for_all_symbols(i, sym) { | |
cfa98f2e | 1289 | if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID)) |
dc7862e5 RZ |
1290 | continue; |
1291 | switch (sym_get_type(sym)) { | |
1292 | case S_BOOLEAN: | |
1293 | case S_TRISTATE: | |
3b9a19e0 | 1294 | has_changed = true; |
dc7862e5 RZ |
1295 | switch (mode) { |
1296 | case def_yes: | |
1297 | sym->def[S_DEF_USER].tri = yes; | |
1298 | break; | |
1299 | case def_mod: | |
1300 | sym->def[S_DEF_USER].tri = mod; | |
1301 | break; | |
1302 | case def_no: | |
5d2acfc7 JT |
1303 | if (sym->flags & SYMBOL_ALLNOCONFIG_Y) |
1304 | sym->def[S_DEF_USER].tri = yes; | |
1305 | else | |
1306 | sym->def[S_DEF_USER].tri = no; | |
dc7862e5 RZ |
1307 | break; |
1308 | case def_random: | |
e43956e6 YM |
1309 | sym->def[S_DEF_USER].tri = no; |
1310 | cnt = rand() % 100; | |
1311 | if (sym->type == S_TRISTATE) { | |
1312 | if (cnt < pty) | |
1313 | sym->def[S_DEF_USER].tri = yes; | |
1314 | else if (cnt < (pty+ptm)) | |
1315 | sym->def[S_DEF_USER].tri = mod; | |
1316 | } else if (cnt < pby) | |
1317 | sym->def[S_DEF_USER].tri = yes; | |
dc7862e5 RZ |
1318 | break; |
1319 | default: | |
1320 | continue; | |
1321 | } | |
184832c9 | 1322 | if (!(sym_is_choice(sym) && mode == def_random)) |
dc7862e5 RZ |
1323 | sym->flags |= SYMBOL_DEF_USER; |
1324 | break; | |
1325 | default: | |
1326 | break; | |
1327 | } | |
1328 | ||
1329 | } | |
1330 | ||
ce97e13e | 1331 | sym_clear_all_valid(); |
dc7862e5 | 1332 | |
184832c9 SR |
1333 | /* |
1334 | * We have different type of choice blocks. | |
579fb8e7 | 1335 | * If curr.tri equals to mod then we can select several |
184832c9 SR |
1336 | * choice symbols in one block. |
1337 | * In this case we do nothing. | |
579fb8e7 | 1338 | * If curr.tri equals yes then only one symbol can be |
184832c9 SR |
1339 | * selected in a choice block and we set it to yes, |
1340 | * and the rest to no. | |
1341 | */ | |
fbe98bb9 AH |
1342 | if (mode != def_random) { |
1343 | for_all_symbols(i, csym) { | |
1344 | if ((sym_is_choice(csym) && !sym_has_value(csym)) || | |
1345 | sym_is_choice_value(csym)) | |
1346 | csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES; | |
1347 | } | |
1348 | } | |
1349 | ||
dc7862e5 RZ |
1350 | for_all_symbols(i, csym) { |
1351 | if (sym_has_value(csym) || !sym_is_choice(csym)) | |
1352 | continue; | |
1353 | ||
1354 | sym_calc_value(csym); | |
a64b44ea | 1355 | if (mode == def_random) |
3b9a19e0 YM |
1356 | has_changed = randomize_choice_values(csym); |
1357 | else { | |
1358 | set_all_choice_values(csym); | |
1359 | has_changed = true; | |
1360 | } | |
dc7862e5 | 1361 | } |
3b9a19e0 YM |
1362 | |
1363 | return has_changed; | |
dc7862e5 | 1364 | } |