1
2
3
4
5
6#include <sys/stat.h>
7#include <ctype.h>
8#include <errno.h>
9#include <fcntl.h>
10#include <stdarg.h>
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <time.h>
15#include <unistd.h>
16
17#include "lkc.h"
18
19static void conf_warning(const char *fmt, ...)
20 __attribute__ ((format (printf, 1, 2)));
21
22static void conf_message(const char *fmt, ...)
23 __attribute__ ((format (printf, 1, 2)));
24
25static const char *conf_filename;
26static int conf_lineno, conf_warnings, conf_unsaved;
27
28const char conf_defname[] = "arch/$ARCH/defconfig";
29
30static void conf_warning(const char *fmt, ...)
31{
32 va_list ap;
33 va_start(ap, fmt);
34 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
35 vfprintf(stderr, fmt, ap);
36 fprintf(stderr, "\n");
37 va_end(ap);
38 conf_warnings++;
39}
40
41static void conf_default_message_callback(const char *fmt, va_list ap)
42{
43 printf("#\n# ");
44 vprintf(fmt, ap);
45 printf("\n#\n");
46}
47
48static void (*conf_message_callback) (const char *fmt, va_list ap) =
49 conf_default_message_callback;
50void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
51{
52 conf_message_callback = fn;
53}
54
55static void conf_message(const char *fmt, ...)
56{
57 va_list ap;
58
59 va_start(ap, fmt);
60 if (conf_message_callback)
61 conf_message_callback(fmt, ap);
62}
63
64const char *conf_get_configname(void)
65{
66 char *name = getenv("KCONFIG_CONFIG");
67
68 return name ? name : ".config";
69}
70
71const char *conf_get_autoconfig_name(void)
72{
73 char *name = getenv("KCONFIG_AUTOCONFIG");
74
75 return name ? name : "include/config/auto.conf";
76}
77
78static char *conf_expand_value(const char *in)
79{
80 struct symbol *sym;
81 const char *src;
82 static char res_value[SYMBOL_MAXLENGTH];
83 char *dst, name[SYMBOL_MAXLENGTH];
84
85 res_value[0] = 0;
86 dst = name;
87 while ((src = strchr(in, '$'))) {
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
104char *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
120static 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 }
131
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);
144 return 1;
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 }
152
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 }
167
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
185int conf_read_simple(const char *name, int def)
186{
187 FILE *in = NULL;
188 char line[1024];
189 char *p, *p2;
190 struct symbol *sym;
191 int i, def_flags;
192
193 if (name) {
194 in = zconf_fopen(name);
195 } else {
196 struct property *prop;
197
198 name = conf_get_configname();
199 in = zconf_fopen(name);
200 if (in)
201 goto load;
202 sym_add_change_count(1);
203 if (!sym_defconfig_list) {
204 if (modules_sym)
205 sym_calc_value(modules_sym);
206 return 1;
207 }
208
209 for_all_defaults(sym_defconfig_list, prop) {
210 if (expr_calc_value(prop->visible.expr) == no ||
211 prop->expr->type != E_SYMBOL)
212 continue;
213 name = conf_expand_value(prop->expr->left.sym->name);
214 in = zconf_fopen(name);
215 if (in) {
216 conf_message(_("using defaults found in %s"),
217 name);
218 goto load;
219 }
220 }
221 }
222 if (!in)
223 return 1;
224
225load:
226 conf_filename = name;
227 conf_lineno = 0;
228 conf_warnings = 0;
229 conf_unsaved = 0;
230
231 def_flags = SYMBOL_DEF << def;
232 for_all_symbols(i, sym) {
233 sym->flags |= SYMBOL_CHANGED;
234 sym->flags &= ~(def_flags|SYMBOL_VALID);
235 if (sym_is_choice(sym))
236 sym->flags |= def_flags;
237 switch (sym->type) {
238 case S_INT:
239 case S_HEX:
240 case S_STRING:
241 if (sym->def[def].val)
242 free(sym->def[def].val);
243
244 default:
245 sym->def[def].val = NULL;
246 sym->def[def].tri = no;
247 }
248 }
249
250 while (fgets(line, sizeof(line), in)) {
251 conf_lineno++;
252 sym = NULL;
253 if (line[0] == '#') {
254 if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
255 continue;
256 p = strchr(line + 2 + strlen(CONFIG_), ' ');
257 if (!p)
258 continue;
259 *p++ = 0;
260 if (strncmp(p, "is not set", 10))
261 continue;
262 if (def == S_DEF_USER) {
263 sym = sym_find(line + 2 + strlen(CONFIG_));
264 if (!sym) {
265 sym_add_change_count(1);
266 goto setsym;
267 }
268 } else {
269 sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
270 if (sym->type == S_UNKNOWN)
271 sym->type = S_BOOLEAN;
272 }
273 if (sym->flags & def_flags) {
274 conf_warning("override: reassigning to symbol %s", sym->name);
275 }
276 switch (sym->type) {
277 case S_BOOLEAN:
278 case S_TRISTATE:
279 sym->def[def].tri = no;
280 sym->flags |= def_flags;
281 break;
282 default:
283 ;
284 }
285 } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
286 p = strchr(line + strlen(CONFIG_), '=');
287 if (!p)
288 continue;
289 *p++ = 0;
290 p2 = strchr(p, '\n');
291 if (p2) {
292 *p2-- = 0;
293 if (*p2 == '\r')
294 *p2 = 0;
295 }
296 if (def == S_DEF_USER) {
297 sym = sym_find(line + strlen(CONFIG_));
298 if (!sym) {
299 sym_add_change_count(1);
300 goto setsym;
301 }
302 } else {
303 sym = sym_lookup(line + strlen(CONFIG_), 0);
304 if (sym->type == S_UNKNOWN)
305 sym->type = S_OTHER;
306 }
307 if (sym->flags & def_flags) {
308 conf_warning("override: reassigning to symbol %s", sym->name);
309 }
310 if (conf_set_sym_val(sym, def, def_flags, p))
311 continue;
312 } else {
313 if (line[0] != '\r' && line[0] != '\n')
314 conf_warning("unexpected data");
315 continue;
316 }
317setsym:
318 if (sym && sym_is_choice_value(sym)) {
319 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
320 switch (sym->def[def].tri) {
321 case no:
322 break;
323 case mod:
324 if (cs->def[def].tri == yes) {
325 conf_warning("%s creates inconsistent choice state", sym->name);
326 cs->flags &= ~def_flags;
327 }
328 break;
329 case yes:
330 if (cs->def[def].tri != no)
331 conf_warning("override: %s changes choice state", sym->name);
332 cs->def[def].val = sym;
333 break;
334 }
335 cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
336 }
337 }
338 fclose(in);
339
340 if (modules_sym)
341 sym_calc_value(modules_sym);
342 return 0;
343}
344
345int conf_read(const char *name)
346{
347 struct symbol *sym, *choice_sym;
348 struct property *prop;
349 struct expr *e;
350 int i, flags;
351
352 sym_set_change_count(0);
353
354 if (conf_read_simple(name, S_DEF_USER))
355 return 1;
356
357 for_all_symbols(i, sym) {
358 sym_calc_value(sym);
359 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
360 goto sym_ok;
361 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
362
363 switch (sym->type) {
364 case S_BOOLEAN:
365 case S_TRISTATE:
366 if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
367 break;
368 if (!sym_is_choice(sym))
369 goto sym_ok;
370
371 default:
372 if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
373 goto sym_ok;
374 break;
375 }
376 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
377
378 goto sym_ok;
379 conf_unsaved++;
380
381 sym_ok:
382 if (!sym_is_choice(sym))
383 continue;
384
385
386
387 prop = sym_get_choice_prop(sym);
388 flags = sym->flags;
389 expr_list_for_each_sym(prop->expr, e, choice_sym)
390 if (choice_sym->visible != no)
391 flags &= choice_sym->flags;
392 sym->flags &= flags | ~SYMBOL_DEF_USER;
393 }
394
395 for_all_symbols(i, sym) {
396 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
397
398
399
400
401
402 if (sym->visible == no && !conf_unsaved)
403 sym->flags &= ~SYMBOL_DEF_USER;
404 switch (sym->type) {
405 case S_STRING:
406 case S_INT:
407 case S_HEX:
408
409 if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
410 break;
411 sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
412 conf_unsaved++;
413 break;
414 default:
415 break;
416 }
417 }
418 }
419
420 sym_add_change_count(conf_warnings || conf_unsaved);
421
422 return 0;
423}
424
425
426
427
428
429
430
431
432
433static void
434kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
435{
436
437 switch (sym->type) {
438 case S_BOOLEAN:
439 case S_TRISTATE:
440 if (*value == 'n') {
441 bool skip_unset = (arg != NULL);
442
443 if (!skip_unset)
444 fprintf(fp, "# %s%s is not set\n",
445 CONFIG_, sym->name);
446 return;
447 }
448 break;
449 default:
450 break;
451 }
452
453 fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
454}
455
456static void
457kconfig_print_comment(FILE *fp, const char *value, void *arg)
458{
459 const char *p = value;
460 size_t l;
461
462 for (;;) {
463 l = strcspn(p, "\n");
464 fprintf(fp, "#");
465 if (l) {
466 fprintf(fp, " ");
467 xfwrite(p, l, 1, fp);
468 p += l;
469 }
470 fprintf(fp, "\n");
471 if (*p++ == '\0')
472 break;
473 }
474}
475
476static struct conf_printer kconfig_printer_cb =
477{
478 .print_symbol = kconfig_print_symbol,
479 .print_comment = kconfig_print_comment,
480};
481
482
483
484
485
486
487static void
488header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
489{
490
491 switch (sym->type) {
492 case S_BOOLEAN:
493 case S_TRISTATE: {
494 const char *suffix = "";
495
496 switch (*value) {
497 case 'n':
498 break;
499 case 'm':
500 suffix = "_MODULE";
501
502 default:
503 fprintf(fp, "#define %s%s%s 1\n",
504 CONFIG_, sym->name, suffix);
505 }
506 break;
507 }
508 case S_HEX: {
509 const char *prefix = "";
510
511 if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
512 prefix = "0x";
513 fprintf(fp, "#define %s%s %s%s\n",
514 CONFIG_, sym->name, prefix, value);
515 break;
516 }
517 case S_STRING:
518 case S_INT:
519 fprintf(fp, "#define %s%s %s\n",
520 CONFIG_, sym->name, value);
521 break;
522 default:
523 break;
524 }
525
526}
527
528static void
529header_print_comment(FILE *fp, const char *value, void *arg)
530{
531 const char *p = value;
532 size_t l;
533
534 fprintf(fp, "/*\n");
535 for (;;) {
536 l = strcspn(p, "\n");
537 fprintf(fp, " *");
538 if (l) {
539 fprintf(fp, " ");
540 xfwrite(p, l, 1, fp);
541 p += l;
542 }
543 fprintf(fp, "\n");
544 if (*p++ == '\0')
545 break;
546 }
547 fprintf(fp, " */\n");
548}
549
550static struct conf_printer header_printer_cb =
551{
552 .print_symbol = header_print_symbol,
553 .print_comment = header_print_comment,
554};
555
556
557
558
559
560
561static void
562header_print__enabled_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
563{
564
565 switch (sym->type) {
566 case S_BOOLEAN:
567 case S_TRISTATE: {
568 fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n",
569 sym->name, (*value == 'y'));
570 fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n",
571 sym->name, (*value == 'm'));
572 break;
573 }
574 default:
575 break;
576 }
577}
578
579static struct conf_printer header__enabled_printer_cb =
580{
581 .print_symbol = header_print__enabled_symbol,
582 .print_comment = header_print_comment,
583};
584
585
586
587
588
589
590static void
591tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
592{
593
594 if (sym->type == S_TRISTATE && *value != 'n')
595 fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
596}
597
598static struct conf_printer tristate_printer_cb =
599{
600 .print_symbol = tristate_print_symbol,
601 .print_comment = kconfig_print_comment,
602};
603
604static void conf_write_symbol(FILE *fp, struct symbol *sym,
605 struct conf_printer *printer, void *printer_arg)
606{
607 const char *str;
608
609 switch (sym->type) {
610 case S_OTHER:
611 case S_UNKNOWN:
612 break;
613 case S_STRING:
614 str = sym_get_string_value(sym);
615 str = sym_escape_string_value(str);
616 printer->print_symbol(fp, sym, str, printer_arg);
617 free((void *)str);
618 break;
619 default:
620 str = sym_get_string_value(sym);
621 printer->print_symbol(fp, sym, str, printer_arg);
622 }
623}
624
625static void
626conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
627{
628 char buf[256];
629
630 snprintf(buf, sizeof(buf),
631 "\n"
632 "Automatically generated file; DO NOT EDIT.\n"
633 "%s\n",
634 rootmenu.prompt->text);
635
636 printer->print_comment(fp, buf, printer_arg);
637}
638
639
640
641
642
643int conf_write_defconfig(const char *filename)
644{
645 struct symbol *sym;
646 struct menu *menu;
647 FILE *out;
648
649 out = fopen(filename, "w");
650 if (!out)
651 return 1;
652
653 sym_clear_all_valid();
654
655
656 menu = rootmenu.list;
657
658 while (menu != NULL)
659 {
660 sym = menu->sym;
661 if (sym == NULL) {
662 if (!menu_is_visible(menu))
663 goto next_menu;
664 } else if (!sym_is_choice(sym)) {
665 sym_calc_value(sym);
666 if (!(sym->flags & SYMBOL_WRITE))
667 goto next_menu;
668 sym->flags &= ~SYMBOL_WRITE;
669
670 if (!sym_is_changable(sym))
671 goto next_menu;
672
673 if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
674 goto next_menu;
675
676
677
678
679
680
681
682
683 if (sym_is_choice_value(sym)) {
684 struct symbol *cs;
685 struct symbol *ds;
686
687 cs = prop_get_symbol(sym_get_choice_prop(sym));
688 ds = sym_choice_default(cs);
689 if (!sym_is_optional(cs) && sym == ds) {
690 if ((sym->type == S_BOOLEAN) &&
691 sym_get_tristate_value(sym) == yes)
692 goto next_menu;
693 }
694 }
695 conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
696 }
697next_menu:
698 if (menu->list != NULL) {
699 menu = menu->list;
700 }
701 else if (menu->next != NULL) {
702 menu = menu->next;
703 } else {
704 while ((menu = menu->parent)) {
705 if (menu->next != NULL) {
706 menu = menu->next;
707 break;
708 }
709 }
710 }
711 }
712 fclose(out);
713 return 0;
714}
715
716int conf_write(const char *name)
717{
718 FILE *out;
719 struct symbol *sym;
720 struct menu *menu;
721 const char *basename;
722 const char *str;
723 char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
724 char *env;
725
726 dirname[0] = 0;
727 if (name && name[0]) {
728 struct stat st;
729 char *slash;
730
731 if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
732 strcpy(dirname, name);
733 strcat(dirname, "/");
734 basename = conf_get_configname();
735 } else if ((slash = strrchr(name, '/'))) {
736 int size = slash - name + 1;
737 memcpy(dirname, name, size);
738 dirname[size] = 0;
739 if (slash[1])
740 basename = slash + 1;
741 else
742 basename = conf_get_configname();
743 } else
744 basename = name;
745 } else
746 basename = conf_get_configname();
747
748 sprintf(newname, "%s%s", dirname, basename);
749 env = getenv("KCONFIG_OVERWRITECONFIG");
750 if (!env || !*env) {
751 sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
752 out = fopen(tmpname, "w");
753 } else {
754 *tmpname = 0;
755 out = fopen(newname, "w");
756 }
757 if (!out)
758 return 1;
759
760 conf_write_heading(out, &kconfig_printer_cb, NULL);
761
762 if (!conf_get_changed())
763 sym_clear_all_valid();
764
765 menu = rootmenu.list;
766 while (menu) {
767 sym = menu->sym;
768 if (!sym) {
769 if (!menu_is_visible(menu))
770 goto next;
771 str = menu_get_prompt(menu);
772 fprintf(out, "\n"
773 "#\n"
774 "# %s\n"
775 "#\n", str);
776 } else if (!(sym->flags & SYMBOL_CHOICE)) {
777 sym_calc_value(sym);
778 if (!(sym->flags & SYMBOL_WRITE))
779 goto next;
780 sym->flags &= ~SYMBOL_WRITE;
781
782 conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
783 }
784
785next:
786 if (menu->list) {
787 menu = menu->list;
788 continue;
789 }
790 if (menu->next)
791 menu = menu->next;
792 else while ((menu = menu->parent)) {
793 if (menu->next) {
794 menu = menu->next;
795 break;
796 }
797 }
798 }
799 fclose(out);
800
801 if (*tmpname) {
802 strcat(dirname, basename);
803 strcat(dirname, ".old");
804 rename(newname, dirname);
805 if (rename(tmpname, newname))
806 return 1;
807 }
808
809 conf_message(_("configuration written to %s"), newname);
810
811 sym_set_change_count(0);
812
813 return 0;
814}
815
816static int conf_split_config(void)
817{
818 const char *name;
819 char path[PATH_MAX+1];
820 char *s, *d, c;
821 struct symbol *sym;
822 struct stat sb;
823 int res, i, fd;
824
825 name = conf_get_autoconfig_name();
826 conf_read_simple(name, S_DEF_AUTO);
827
828 if (chdir("include/config"))
829 return 1;
830
831 res = 0;
832 for_all_symbols(i, sym) {
833 sym_calc_value(sym);
834 if ((sym->flags & SYMBOL_AUTO) || !sym->name)
835 continue;
836 if (sym->flags & SYMBOL_WRITE) {
837 if (sym->flags & SYMBOL_DEF_AUTO) {
838
839
840
841
842 switch (sym->type) {
843 case S_BOOLEAN:
844 case S_TRISTATE:
845 if (sym_get_tristate_value(sym) ==
846 sym->def[S_DEF_AUTO].tri)
847 continue;
848 break;
849 case S_STRING:
850 case S_HEX:
851 case S_INT:
852 if (!strcmp(sym_get_string_value(sym),
853 sym->def[S_DEF_AUTO].val))
854 continue;
855 break;
856 default:
857 break;
858 }
859 } else {
860
861
862
863
864 switch (sym->type) {
865 case S_BOOLEAN:
866 case S_TRISTATE:
867 if (sym_get_tristate_value(sym) == no)
868 continue;
869 break;
870 default:
871 break;
872 }
873 }
874 } else if (!(sym->flags & SYMBOL_DEF_AUTO))
875
876 continue;
877
878
879
880
881
882
883
884 s = sym->name;
885 d = path;
886 while ((c = *s++)) {
887 c = tolower(c);
888 *d++ = (c == '_') ? '/' : c;
889 }
890 strcpy(d, ".h");
891
892
893 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
894 if (fd == -1) {
895 if (errno != ENOENT) {
896 res = 1;
897 break;
898 }
899
900
901
902
903 d = path;
904 while ((d = strchr(d, '/'))) {
905 *d = 0;
906 if (stat(path, &sb) && mkdir(path, 0755)) {
907 res = 1;
908 goto out;
909 }
910 *d++ = '/';
911 }
912
913 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
914 if (fd == -1) {
915 res = 1;
916 break;
917 }
918 }
919 close(fd);
920 }
921out:
922 if (chdir("../.."))
923 return 1;
924
925 return res;
926}
927
928int conf_write_autoconf(void)
929{
930 struct symbol *sym;
931 const char *name;
932 FILE *out, *tristate, *out_h;
933 int i;
934
935 sym_clear_all_valid();
936
937 file_write_dep("include/config/auto.conf.cmd");
938
939 if (conf_split_config())
940 return 1;
941
942 out = fopen(".tmpconfig", "w");
943 if (!out)
944 return 1;
945
946 tristate = fopen(".tmpconfig_tristate", "w");
947 if (!tristate) {
948 fclose(out);
949 return 1;
950 }
951
952 out_h = fopen(".tmpconfig.h", "w");
953 if (!out_h) {
954 fclose(out);
955 fclose(tristate);
956 return 1;
957 }
958
959 conf_write_heading(out, &kconfig_printer_cb, NULL);
960
961 conf_write_heading(tristate, &tristate_printer_cb, NULL);
962
963 conf_write_heading(out_h, &header_printer_cb, NULL);
964
965 for_all_symbols(i, sym) {
966 if (!sym->name)
967 continue;
968
969 sym_calc_value(sym);
970
971 conf_write_symbol(out_h, sym, &header__enabled_printer_cb, NULL);
972
973 if (!(sym->flags & SYMBOL_WRITE))
974 continue;
975
976 conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
977
978 conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
979
980 conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
981 }
982 fclose(out);
983 fclose(tristate);
984 fclose(out_h);
985
986 name = getenv("KCONFIG_AUTOHEADER");
987 if (!name)
988 name = "include/generated/autoconf.h";
989 if (rename(".tmpconfig.h", name))
990 return 1;
991 name = getenv("KCONFIG_TRISTATE");
992 if (!name)
993 name = "include/config/tristate.conf";
994 if (rename(".tmpconfig_tristate", name))
995 return 1;
996 name = conf_get_autoconfig_name();
997
998
999
1000
1001 if (rename(".tmpconfig", name))
1002 return 1;
1003
1004 return 0;
1005}
1006
1007static int sym_change_count;
1008static void (*conf_changed_callback)(void);
1009
1010void sym_set_change_count(int count)
1011{
1012 int _sym_change_count = sym_change_count;
1013 sym_change_count = count;
1014 if (conf_changed_callback &&
1015 (bool)_sym_change_count != (bool)count)
1016 conf_changed_callback();
1017}
1018
1019void sym_add_change_count(int count)
1020{
1021 sym_set_change_count(count + sym_change_count);
1022}
1023
1024bool conf_get_changed(void)
1025{
1026 return sym_change_count;
1027}
1028
1029void conf_set_changed_callback(void (*fn)(void))
1030{
1031 conf_changed_callback = fn;
1032}
1033
1034static void randomize_choice_values(struct symbol *csym)
1035{
1036 struct property *prop;
1037 struct symbol *sym;
1038 struct expr *e;
1039 int cnt, def;
1040
1041
1042
1043
1044
1045
1046 if (csym->curr.tri != yes)
1047 return;
1048
1049 prop = sym_get_choice_prop(csym);
1050
1051
1052 cnt = 0;
1053 expr_list_for_each_sym(prop->expr, e, sym)
1054 cnt++;
1055
1056
1057
1058
1059
1060 def = (rand() % cnt);
1061
1062 cnt = 0;
1063 expr_list_for_each_sym(prop->expr, e, sym) {
1064 if (def == cnt++) {
1065 sym->def[S_DEF_USER].tri = yes;
1066 csym->def[S_DEF_USER].val = sym;
1067 }
1068 else {
1069 sym->def[S_DEF_USER].tri = no;
1070 }
1071 }
1072 csym->flags |= SYMBOL_DEF_USER;
1073
1074 csym->flags &= ~(SYMBOL_VALID);
1075}
1076
1077static void set_all_choice_values(struct symbol *csym)
1078{
1079 struct property *prop;
1080 struct symbol *sym;
1081 struct expr *e;
1082
1083 prop = sym_get_choice_prop(csym);
1084
1085
1086
1087
1088 expr_list_for_each_sym(prop->expr, e, sym) {
1089 if (!sym_has_value(sym))
1090 sym->def[S_DEF_USER].tri = no;
1091 }
1092 csym->flags |= SYMBOL_DEF_USER;
1093
1094 csym->flags &= ~(SYMBOL_VALID);
1095}
1096
1097void conf_set_all_new_symbols(enum conf_def_mode mode)
1098{
1099 struct symbol *sym, *csym;
1100 int i, cnt;
1101
1102 for_all_symbols(i, sym) {
1103 if (sym_has_value(sym))
1104 continue;
1105 switch (sym_get_type(sym)) {
1106 case S_BOOLEAN:
1107 case S_TRISTATE:
1108 switch (mode) {
1109 case def_yes:
1110 sym->def[S_DEF_USER].tri = yes;
1111 break;
1112 case def_mod:
1113 sym->def[S_DEF_USER].tri = mod;
1114 break;
1115 case def_no:
1116 sym->def[S_DEF_USER].tri = no;
1117 break;
1118 case def_random:
1119 cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2;
1120 sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt);
1121 break;
1122 default:
1123 continue;
1124 }
1125 if (!(sym_is_choice(sym) && mode == def_random))
1126 sym->flags |= SYMBOL_DEF_USER;
1127 break;
1128 default:
1129 break;
1130 }
1131
1132 }
1133
1134 sym_clear_all_valid();
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145 for_all_symbols(i, csym) {
1146 if (sym_has_value(csym) || !sym_is_choice(csym))
1147 continue;
1148
1149 sym_calc_value(csym);
1150 if (mode == def_random)
1151 randomize_choice_values(csym);
1152 else
1153 set_all_choice_values(csym);
1154 }
1155}
1156
