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/$ARCH/defconfig";
29
30static void conf_warning(const char *fmt, ...)
31{
32 va_list ap;
33 va_start(ap, fmt);
34 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
35 vfprintf(stderr, fmt, ap);
36 fprintf(stderr, "\n");
37 va_end(ap);
38 conf_warnings++;
39}
40
41static void conf_default_message_callback(const char *fmt, va_list ap)
42{
43 printf("#\n# ");
44 vprintf(fmt, ap);
45 printf("\n#\n");
46}
47
48static void (*conf_message_callback) (const char *fmt, va_list ap) =
49 conf_default_message_callback;
50void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
51{
52 conf_message_callback = fn;
53}
54
55static void conf_message(const char *fmt, ...)
56{
57 va_list ap;
58
59 va_start(ap, fmt);
60 if (conf_message_callback)
61 conf_message_callback(fmt, ap);
62 va_end(ap);
63}
64
65const char *conf_get_configname(void)
66{
67 char *name = getenv("KCONFIG_CONFIG");
68
69 return name ? name : ".config";
70}
71
72const char *conf_get_autoconfig_name(void)
73{
74 char *name = getenv("KCONFIG_AUTOCONFIG");
75
76 return name ? name : "include/config/auto.conf";
77}
78
79static char *conf_expand_value(const char *in)
80{
81 struct symbol *sym;
82 const char *src;
83 static char res_value[SYMBOL_MAXLENGTH];
84 char *dst, name[SYMBOL_MAXLENGTH];
85
86 res_value[0] = 0;
87 dst = name;
88 while ((src = strchr(in, '$'))) {
89 strncat(res_value, in, src - in);
90 src++;
91 dst = name;
92 while (isalnum(*src) || *src == '_')
93 *dst++ = *src++;
94 *dst = 0;
95 sym = sym_lookup(name, 0);
96 sym_calc_value(sym);
97 strcat(res_value, sym_get_string_value(sym));
98 in = src;
99 }
100 strcat(res_value, in);
101
102 return res_value;
103}
104
105char *conf_get_default_confname(void)
106{
107 struct stat buf;
108 static char fullname[PATH_MAX+1];
109 char *env, *name;
110
111 name = conf_expand_value(conf_defname);
112 env = getenv(SRCTREE);
113 if (env) {
114 sprintf(fullname, "%s/%s", env, name);
115 if (!stat(fullname, &buf))
116 return fullname;
117 }
118 return name;
119}
120
121static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
122{
123 char *p2;
124
125 switch (sym->type) {
126 case S_TRISTATE:
127 if (p[0] == 'm') {
128 sym->def[def].tri = mod;
129 sym->flags |= def_flags;
130 break;
131 }
132
133 case S_BOOLEAN:
134 if (p[0] == 'y') {
135 sym->def[def].tri = yes;
136 sym->flags |= def_flags;
137 break;
138 }
139 if (p[0] == 'n') {
140 sym->def[def].tri = no;
141 sym->flags |= def_flags;
142 break;
143 }
144 if (def != S_DEF_AUTO)
145 conf_warning("symbol value '%s' invalid for %s",
146 p, sym->name);
147 return 1;
148 case S_OTHER:
149 if (*p != '"') {
150 for (p2 = p; *p2 && !isspace(*p2); p2++)
151 ;
152 sym->type = S_STRING;
153 goto done;
154 }
155
156 case S_STRING:
157 if (*p++ != '"')
158 break;
159 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
160 if (*p2 == '"') {
161 *p2 = 0;
162 break;
163 }
164 memmove(p2, p2 + 1, strlen(p2));
165 }
166 if (!p2) {
167 if (def != S_DEF_AUTO)
168 conf_warning("invalid string found");
169 return 1;
170 }
171
172 case S_INT:
173 case S_HEX:
174 done:
175 if (sym_string_valid(sym, p)) {
176 sym->def[def].val = strdup(p);
177 sym->flags |= def_flags;
178 } else {
179 if (def != S_DEF_AUTO)
180 conf_warning("symbol value '%s' invalid for %s",
181 p, sym->name);
182 return 1;
183 }
184 break;
185 default:
186 ;
187 }
188 return 0;
189}
190
191#define LINE_GROWTH 16
192static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
193{
194 char *nline;
195 size_t new_size = slen + 1;
196 if (new_size > *n) {
197 new_size += LINE_GROWTH - 1;
198 new_size *= 2;
199 nline = realloc(*lineptr, new_size);
200 if (!nline)
201 return -1;
202
203 *lineptr = nline;
204 *n = new_size;
205 }
206
207 (*lineptr)[slen] = c;
208
209 return 0;
210}
211
212static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
213{
214 char *line = *lineptr;
215 size_t slen = 0;
216
217 for (;;) {
218 int c = getc(stream);
219
220 switch (c) {
221 case '\n':
222 if (add_byte(c, &line, slen, n) < 0)
223 goto e_out;
224 slen++;
225
226 case EOF:
227 if (add_byte('\0', &line, slen, n) < 0)
228 goto e_out;
229 *lineptr = line;
230 if (slen == 0)
231 return -1;
232 return slen;
233 default:
234 if (add_byte(c, &line, slen, n) < 0)
235 goto e_out;
236 slen++;
237 }
238 }
239
240e_out:
241 line[slen-1] = '\0';
242 *lineptr = line;
243 return -1;
244}
245
246int conf_read_simple(const char *name, int def)
247{
248 FILE *in = NULL;
249 char *line = NULL;
250 size_t line_asize = 0;
251 char *p, *p2;
252 struct symbol *sym;
253 int i, def_flags;
254
255 if (name) {
256 in = zconf_fopen(name);
257 } else {
258 struct property *prop;
259
260 name = conf_get_configname();
261 in = zconf_fopen(name);
262 if (in)
263 goto load;
264 sym_add_change_count(1);
265 if (!sym_defconfig_list) {
266 if (modules_sym)
267 sym_calc_value(modules_sym);
268 return 1;
269 }
270
271 for_all_defaults(sym_defconfig_list, prop) {
272 if (expr_calc_value(prop->visible.expr) == no ||
273 prop->expr->type != E_SYMBOL)
274 continue;
275 name = conf_expand_value(prop->expr->left.sym->name);
276 in = zconf_fopen(name);
277 if (in) {
278 conf_message(_("using defaults found in %s"),
279 name);
280 goto load;
281 }
282 }
283 }
284 if (!in)
285 return 1;
286
287load:
288 conf_filename = name;
289 conf_lineno = 0;
290 conf_warnings = 0;
291 conf_unsaved = 0;
292
293 def_flags = SYMBOL_DEF << def;
294 for_all_symbols(i, sym) {
295 sym->flags |= SYMBOL_CHANGED;
296 sym->flags &= ~(def_flags|SYMBOL_VALID);
297 if (sym_is_choice(sym))
298 sym->flags |= def_flags;
299 switch (sym->type) {
300 case S_INT:
301 case S_HEX:
302 case S_STRING:
303 if (sym->def[def].val)
304 free(sym->def[def].val);
305
306 default:
307 sym->def[def].val = NULL;
308 sym->def[def].tri = no;
309 }
310 }
311
312 while (compat_getline(&line, &line_asize, in) != -1) {
313 conf_lineno++;
314 sym = NULL;
315 if (line[0] == '#') {
316 if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
317 continue;
318 p = strchr(line + 2 + strlen(CONFIG_), ' ');
319 if (!p)
320 continue;
321 *p++ = 0;
322 if (strncmp(p, "is not set", 10))
323 continue;
324 if (def == S_DEF_USER) {
325 sym = sym_find(line + 2 + strlen(CONFIG_));
326 if (!sym) {
327 sym_add_change_count(1);
328 goto setsym;
329 }
330 } else {
331 sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
332 if (sym->type == S_UNKNOWN)
333 sym->type = S_BOOLEAN;
334 }
335 if (sym->flags & def_flags) {
336 conf_warning("override: reassigning to symbol %s", sym->name);
337 }
338 switch (sym->type) {
339 case S_BOOLEAN:
340 case S_TRISTATE:
341 sym->def[def].tri = no;
342 sym->flags |= def_flags;
343 break;
344 default:
345 ;
346 }
347 } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
348 p = strchr(line + strlen(CONFIG_), '=');
349 if (!p)
350 continue;
351 *p++ = 0;
352 p2 = strchr(p, '\n');
353 if (p2) {
354 *p2-- = 0;
355 if (*p2 == '\r')
356 *p2 = 0;
357 }
358 if (def == S_DEF_USER) {
359 sym = sym_find(line + strlen(CONFIG_));
360 if (!sym) {
361 sym_add_change_count(1);
362 goto setsym;
363 }
364 } else {
365 sym = sym_lookup(line + strlen(CONFIG_), 0);
366 if (sym->type == S_UNKNOWN)
367 sym->type = S_OTHER;
368 }
369 if (sym->flags & def_flags) {
370 conf_warning("override: reassigning to symbol %s", sym->name);
371 }
372 if (conf_set_sym_val(sym, def, def_flags, p))
373 continue;
374 } else {
375 if (line[0] != '\r' && line[0] != '\n')
376 conf_warning("unexpected data");
377 continue;
378 }
379setsym:
380 if (sym && sym_is_choice_value(sym)) {
381 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
382 switch (sym->def[def].tri) {
383 case no:
384 break;
385 case mod:
386 if (cs->def[def].tri == yes) {
387 conf_warning("%s creates inconsistent choice state", sym->name);
388 cs->flags &= ~def_flags;
389 }
390 break;
391 case yes:
392 if (cs->def[def].tri != no)
393 conf_warning("override: %s changes choice state", sym->name);
394 cs->def[def].val = sym;
395 break;
396 }
397 cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
398 }
399 }
400 free(line);
401 fclose(in);
402
403 if (modules_sym)
404 sym_calc_value(modules_sym);
405 return 0;
406}
407
408int conf_read(const char *name)
409{
410 struct symbol *sym;
411 int i;
412
413 sym_set_change_count(0);
414
415 if (conf_read_simple(name, S_DEF_USER))
416 return 1;
417
418 for_all_symbols(i, sym) {
419 sym_calc_value(sym);
420 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
421 continue;
422 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
423
424 switch (sym->type) {
425 case S_BOOLEAN:
426 case S_TRISTATE:
427 if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
428 break;
429 if (!sym_is_choice(sym))
430 continue;
431
432 default:
433 if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
434 continue;
435 break;
436 }
437 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
438
439 continue;
440 conf_unsaved++;
441
442 }
443
444 for_all_symbols(i, sym) {
445 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
446
447
448
449
450
451 if (sym->visible == no && !conf_unsaved)
452 sym->flags &= ~SYMBOL_DEF_USER;
453 switch (sym->type) {
454 case S_STRING:
455 case S_INT:
456 case S_HEX:
457
458 if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
459 break;
460 sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
461 conf_unsaved++;
462 break;
463 default:
464 break;
465 }
466 }
467 }
468
469 sym_add_change_count(conf_warnings || conf_unsaved);
470
471 return 0;
472}
473
474
475
476
477
478
479
480
481
482static void
483kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
484{
485
486 switch (sym->type) {
487 case S_BOOLEAN:
488 case S_TRISTATE:
489 if (*value == 'n') {
490 bool skip_unset = (arg != NULL);
491
492 if (!skip_unset)
493 fprintf(fp, "# %s%s is not set\n",
494 CONFIG_, sym->name);
495 return;
496 }
497 break;
498 default:
499 break;
500 }
501
502 fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
503}
504
505static void
506kconfig_print_comment(FILE *fp, const char *value, void *arg)
507{
508 const char *p = value;
509 size_t l;
510
511 for (;;) {
512 l = strcspn(p, "\n");
513 fprintf(fp, "#");
514 if (l) {
515 fprintf(fp, " ");
516 xfwrite(p, l, 1, fp);
517 p += l;
518 }
519 fprintf(fp, "\n");
520 if (*p++ == '\0')
521 break;
522 }
523}
524
525static struct conf_printer kconfig_printer_cb =
526{
527 .print_symbol = kconfig_print_symbol,
528 .print_comment = kconfig_print_comment,
529};
530
531
532
533
534
535
536static void
537header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
538{
539
540 switch (sym->type) {
541 case S_BOOLEAN:
542 case S_TRISTATE: {
543 const char *suffix = "";
544
545 switch (*value) {
546 case 'n':
547 break;
548 case 'm':
549 suffix = "_MODULE";
550
551 default:
552 fprintf(fp, "#define %s%s%s 1\n",
553 CONFIG_, sym->name, suffix);
554 }
555 break;
556 }
557 case S_HEX: {
558 const char *prefix = "";
559
560 if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
561 prefix = "0x";
562 fprintf(fp, "#define %s%s %s%s\n",
563 CONFIG_, sym->name, prefix, value);
564 break;
565 }
566 case S_STRING:
567 case S_INT:
568 fprintf(fp, "#define %s%s %s\n",
569 CONFIG_, sym->name, value);
570 break;
571 default:
572 break;
573 }
574
575}
576
577static void
578header_print_comment(FILE *fp, const char *value, void *arg)
579{
580 const char *p = value;
581 size_t l;
582
583 fprintf(fp, "/*\n");
584 for (;;) {
585 l = strcspn(p, "\n");
586 fprintf(fp, " *");
587 if (l) {
588 fprintf(fp, " ");
589 xfwrite(p, l, 1, fp);
590 p += l;
591 }
592 fprintf(fp, "\n");
593 if (*p++ == '\0')
594 break;
595 }
596 fprintf(fp, " */\n");
597}
598
599static struct conf_printer header_printer_cb =
600{
601 .print_symbol = header_print_symbol,
602 .print_comment = header_print_comment,
603};
604
605
606
607
608
609
610static void
611tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
612{
613
614 if (sym->type == S_TRISTATE && *value != 'n')
615 fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
616}
617
618static struct conf_printer tristate_printer_cb =
619{
620 .print_symbol = tristate_print_symbol,
621 .print_comment = kconfig_print_comment,
622};
623
624static void conf_write_symbol(FILE *fp, struct symbol *sym,
625 struct conf_printer *printer, void *printer_arg)
626{
627 const char *str;
628
629 switch (sym->type) {
630 case S_OTHER:
631 case S_UNKNOWN:
632 break;
633 case S_STRING:
634 str = sym_get_string_value(sym);
635 str = sym_escape_string_value(str);
636 printer->print_symbol(fp, sym, str, printer_arg);
637 free((void *)str);
638 break;
639 default:
640 str = sym_get_string_value(sym);
641 printer->print_symbol(fp, sym, str, printer_arg);
642 }
643}
644
645static void
646conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
647{
648 char buf[256];
649
650 snprintf(buf, sizeof(buf),
651 "\n"
652 "Automatically generated file; DO NOT EDIT.\n"
653 "%s\n",
654 rootmenu.prompt->text);
655
656 printer->print_comment(fp, buf, printer_arg);
657}
658
659
660
661
662
663int conf_write_defconfig(const char *filename)
664{
665 struct symbol *sym;
666 struct menu *menu;
667 FILE *out;
668
669 out = fopen(filename, "w");
670 if (!out)
671 return 1;
672
673 sym_clear_all_valid();
674
675
676 menu = rootmenu.list;
677
678 while (menu != NULL)
679 {
680 sym = menu->sym;
681 if (sym == NULL) {
682 if (!menu_is_visible(menu))
683 goto next_menu;
684 } else if (!sym_is_choice(sym)) {
685 sym_calc_value(sym);
686 if (!(sym->flags & SYMBOL_WRITE))
687 goto next_menu;
688 sym->flags &= ~SYMBOL_WRITE;
689
690 if (!sym_is_changable(sym))
691 goto next_menu;
692
693 if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
694 goto next_menu;
695
696
697
698
699
700
701
702
703 if (sym_is_choice_value(sym)) {
704 struct symbol *cs;
705 struct symbol *ds;
706
707 cs = prop_get_symbol(sym_get_choice_prop(sym));
708 ds = sym_choice_default(cs);
709 if (!sym_is_optional(cs) && sym == ds) {
710 if ((sym->type == S_BOOLEAN) &&
711 sym_get_tristate_value(sym) == yes)
712 goto next_menu;
713 }
714 }
715 conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
716 }
717next_menu:
718 if (menu->list != NULL) {
719 menu = menu->list;
720 }
721 else if (menu->next != NULL) {
722 menu = menu->next;
723 } else {
724 while ((menu = menu->parent)) {
725 if (menu->next != NULL) {
726 menu = menu->next;
727 break;
728 }
729 }
730 }
731 }
732 fclose(out);
733 return 0;
734}
735
736int conf_write(const char *name)
737{
738 FILE *out;
739 struct symbol *sym;
740 struct menu *menu;
741 const char *basename;
742 const char *str;
743 char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
744 char *env;
745
746 dirname[0] = 0;
747 if (name && name[0]) {
748 struct stat st;
749 char *slash;
750
751 if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
752 strcpy(dirname, name);
753 strcat(dirname, "/");
754 basename = conf_get_configname();
755 } else if ((slash = strrchr(name, '/'))) {
756 int size = slash - name + 1;
757 memcpy(dirname, name, size);
758 dirname[size] = 0;
759 if (slash[1])
760 basename = slash + 1;
761 else
762 basename = conf_get_configname();
763 } else
764 basename = name;
765 } else
766 basename = conf_get_configname();
767
768 sprintf(newname, "%s%s", dirname, basename);
769 env = getenv("KCONFIG_OVERWRITECONFIG");
770 if (!env || !*env) {
771 sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
772 out = fopen(tmpname, "w");
773 } else {
774 *tmpname = 0;
775 out = fopen(newname, "w");
776 }
777 if (!out)
778 return 1;
779
780 conf_write_heading(out, &kconfig_printer_cb, NULL);
781
782 if (!conf_get_changed())
783 sym_clear_all_valid();
784
785 menu = rootmenu.list;
786 while (menu) {
787 sym = menu->sym;
788 if (!sym) {
789 if (!menu_is_visible(menu))
790 goto next;
791 str = menu_get_prompt(menu);
792 fprintf(out, "\n"
793 "#\n"
794 "# %s\n"
795 "#\n", str);
796 } else if (!(sym->flags & SYMBOL_CHOICE)) {
797 sym_calc_value(sym);
798 if (!(sym->flags & SYMBOL_WRITE))
799 goto next;
800 sym->flags &= ~SYMBOL_WRITE;
801
802 conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
803 }
804
805next:
806 if (menu->list) {
807 menu = menu->list;
808 continue;
809 }
810 if (menu->next)
811 menu = menu->next;
812 else while ((menu = menu->parent)) {
813 if (menu->next) {
814 menu = menu->next;
815 break;
816 }
817 }
818 }
819 fclose(out);
820
821 if (*tmpname) {
822 strcat(dirname, basename);
823 strcat(dirname, ".old");
824 rename(newname, dirname);
825 if (rename(tmpname, newname))
826 return 1;
827 }
828
829 conf_message(_("configuration written to %s"), newname);
830
831 sym_set_change_count(0);
832
833 return 0;
834}
835
836static int conf_split_config(void)
837{
838 const char *name;
839 char path[PATH_MAX+1];
840 char *s, *d, c;
841 struct symbol *sym;
842 struct stat sb;
843 int res, i, fd;
844
845 name = conf_get_autoconfig_name();
846 conf_read_simple(name, S_DEF_AUTO);
847
848 if (chdir("include/config"))
849 return 1;
850
851 res = 0;
852 for_all_symbols(i, sym) {
853 sym_calc_value(sym);
854 if ((sym->flags & SYMBOL_AUTO) || !sym->name)
855 continue;
856 if (sym->flags & SYMBOL_WRITE) {
857 if (sym->flags & SYMBOL_DEF_AUTO) {
858
859
860
861
862 switch (sym->type) {
863 case S_BOOLEAN:
864 case S_TRISTATE:
865 if (sym_get_tristate_value(sym) ==
866 sym->def[S_DEF_AUTO].tri)
867 continue;
868 break;
869 case S_STRING:
870 case S_HEX:
871 case S_INT:
872 if (!strcmp(sym_get_string_value(sym),
873 sym->def[S_DEF_AUTO].val))
874 continue;
875 break;
876 default:
877 break;
878 }
879 } else {
880
881
882
883
884 switch (sym->type) {
885 case S_BOOLEAN:
886 case S_TRISTATE:
887 if (sym_get_tristate_value(sym) == no)
888 continue;
889 break;
890 default:
891 break;
892 }
893 }
894 } else if (!(sym->flags & SYMBOL_DEF_AUTO))
895
896 continue;
897
898
899
900
901
902
903
904 s = sym->name;
905 d = path;
906 while ((c = *s++)) {
907 c = tolower(c);
908 *d++ = (c == '_') ? '/' : c;
909 }
910 strcpy(d, ".h");
911
912
913 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
914 if (fd == -1) {
915 if (errno != ENOENT) {
916 res = 1;
917 break;
918 }
919
920
921
922
923 d = path;
924 while ((d = strchr(d, '/'))) {
925 *d = 0;
926 if (stat(path, &sb) && mkdir(path, 0755)) {
927 res = 1;
928 goto out;
929 }
930 *d++ = '/';
931 }
932
933 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
934 if (fd == -1) {
935 res = 1;
936 break;
937 }
938 }
939 close(fd);
940 }
941out:
942 if (chdir("../.."))
943 return 1;
944
945 return res;
946}
947
948int conf_write_autoconf(void)
949{
950 struct symbol *sym;
951 const char *name;
952 FILE *out, *tristate, *out_h;
953 int i;
954
955 sym_clear_all_valid();
956
957 file_write_dep("include/config/auto.conf.cmd");
958
959 if (conf_split_config())
960 return 1;
961
962 out = fopen(".tmpconfig", "w");
963 if (!out)
964 return 1;
965
966 tristate = fopen(".tmpconfig_tristate", "w");
967 if (!tristate) {
968 fclose(out);
969 return 1;
970 }
971
972 out_h = fopen(".tmpconfig.h", "w");
973 if (!out_h) {
974 fclose(out);
975 fclose(tristate);
976 return 1;
977 }
978
979 conf_write_heading(out, &kconfig_printer_cb, NULL);
980
981 conf_write_heading(tristate, &tristate_printer_cb, NULL);
982
983 conf_write_heading(out_h, &header_printer_cb, NULL);
984
985 for_all_symbols(i, sym) {
986 sym_calc_value(sym);
987 if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
988 continue;
989
990
991 conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
992
993 conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
994
995 conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
996 }
997 fclose(out);
998 fclose(tristate);
999 fclose(out_h);
1000
1001 name = getenv("KCONFIG_AUTOHEADER");
1002 if (!name)
1003 name = "include/generated/autoconf.h";
1004 if (rename(".tmpconfig.h", name))
1005 return 1;
1006 name = getenv("KCONFIG_TRISTATE");
1007 if (!name)
1008 name = "include/config/tristate.conf";
1009 if (rename(".tmpconfig_tristate", name))
1010 return 1;
1011 name = conf_get_autoconfig_name();
1012
1013
1014
1015
1016 if (rename(".tmpconfig", name))
1017 return 1;
1018
1019 return 0;
1020}
1021
1022static int sym_change_count;
1023static void (*conf_changed_callback)(void);
1024
1025void sym_set_change_count(int count)
1026{
1027 int _sym_change_count = sym_change_count;
1028 sym_change_count = count;
1029 if (conf_changed_callback &&
1030 (bool)_sym_change_count != (bool)count)
1031 conf_changed_callback();
1032}
1033
1034void sym_add_change_count(int count)
1035{
1036 sym_set_change_count(count + sym_change_count);
1037}
1038
1039bool conf_get_changed(void)
1040{
1041 return sym_change_count;
1042}
1043
1044void conf_set_changed_callback(void (*fn)(void))
1045{
1046 conf_changed_callback = fn;
1047}
1048
1049static bool randomize_choice_values(struct symbol *csym)
1050{
1051 struct property *prop;
1052 struct symbol *sym;
1053 struct expr *e;
1054 int cnt, def;
1055
1056
1057
1058
1059
1060
1061 if (csym->curr.tri != yes)
1062 return false;
1063
1064 prop = sym_get_choice_prop(csym);
1065
1066
1067 cnt = 0;
1068 expr_list_for_each_sym(prop->expr, e, sym)
1069 cnt++;
1070
1071
1072
1073
1074
1075 def = (rand() % cnt);
1076
1077 cnt = 0;
1078 expr_list_for_each_sym(prop->expr, e, sym) {
1079 if (def == cnt++) {
1080 sym->def[S_DEF_USER].tri = yes;
1081 csym->def[S_DEF_USER].val = sym;
1082 }
1083 else {
1084 sym->def[S_DEF_USER].tri = no;
1085 }
1086 sym->flags |= SYMBOL_DEF_USER;
1087
1088 sym->flags &= ~SYMBOL_VALID;
1089 }
1090 csym->flags |= SYMBOL_DEF_USER;
1091
1092 csym->flags &= ~(SYMBOL_VALID);
1093
1094 return true;
1095}
1096
1097void set_all_choice_values(struct symbol *csym)
1098{
1099 struct property *prop;
1100 struct symbol *sym;
1101 struct expr *e;
1102
1103 prop = sym_get_choice_prop(csym);
1104
1105
1106
1107
1108 expr_list_for_each_sym(prop->expr, e, sym) {
1109 if (!sym_has_value(sym))
1110 sym->def[S_DEF_USER].tri = no;
1111 }
1112 csym->flags |= SYMBOL_DEF_USER;
1113
1114 csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);
1115}
1116
1117bool conf_set_all_new_symbols(enum conf_def_mode mode)
1118{
1119 struct symbol *sym, *csym;
1120 int i, cnt, pby, pty, ptm;
1121
1122
1123
1124
1125 pby = 50; pty = ptm = 33;
1126
1127
1128 if (mode == def_random) {
1129 int n, p[3];
1130 char *env = getenv("KCONFIG_PROBABILITY");
1131 n = 0;
1132 while( env && *env ) {
1133 char *endp;
1134 int tmp = strtol( env, &endp, 10 );
1135 if( tmp >= 0 && tmp <= 100 ) {
1136 p[n++] = tmp;
1137 } else {
1138 errno = ERANGE;
1139 perror( "KCONFIG_PROBABILITY" );
1140 exit( 1 );
1141 }
1142 env = (*endp == ':') ? endp+1 : endp;
1143 if( n >=3 ) {
1144 break;
1145 }
1146 }
1147 switch( n ) {
1148 case 1:
1149 pby = p[0]; ptm = pby/2; pty = pby-ptm;
1150 break;
1151 case 2:
1152 pty = p[0]; ptm = p[1]; pby = pty + ptm;
1153 break;
1154 case 3:
1155 pby = p[0]; pty = p[1]; ptm = p[2];
1156 break;
1157 }
1158
1159 if( pty+ptm > 100 ) {
1160 errno = ERANGE;
1161 perror( "KCONFIG_PROBABILITY" );
1162 exit( 1 );
1163 }
1164 }
1165 bool has_changed = false;
1166
1167 for_all_symbols(i, sym) {
1168 if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID))
1169 continue;
1170 switch (sym_get_type(sym)) {
1171 case S_BOOLEAN:
1172 case S_TRISTATE:
1173 has_changed = true;
1174 switch (mode) {
1175 case def_yes:
1176 sym->def[S_DEF_USER].tri = yes;
1177 break;
1178 case def_mod:
1179 sym->def[S_DEF_USER].tri = mod;
1180 break;
1181 case def_no:
1182 if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
1183 sym->def[S_DEF_USER].tri = yes;
1184 else
1185 sym->def[S_DEF_USER].tri = no;
1186 break;
1187 case def_random:
1188 sym->def[S_DEF_USER].tri = no;
1189 cnt = rand() % 100;
1190 if (sym->type == S_TRISTATE) {
1191 if (cnt < pty)
1192 sym->def[S_DEF_USER].tri = yes;
1193 else if (cnt < (pty+ptm))
1194 sym->def[S_DEF_USER].tri = mod;
1195 } else if (cnt < pby)
1196 sym->def[S_DEF_USER].tri = yes;
1197 break;
1198 default:
1199 continue;
1200 }
1201 if (!(sym_is_choice(sym) && mode == def_random))
1202 sym->flags |= SYMBOL_DEF_USER;
1203 break;
1204 default:
1205 break;
1206 }
1207
1208 }
1209
1210 sym_clear_all_valid();
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221 if (mode != def_random) {
1222 for_all_symbols(i, csym) {
1223 if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
1224 sym_is_choice_value(csym))
1225 csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
1226 }
1227 }
1228
1229 for_all_symbols(i, csym) {
1230 if (sym_has_value(csym) || !sym_is_choice(csym))
1231 continue;
1232
1233 sym_calc_value(csym);
1234 if (mode == def_random)
1235 has_changed = randomize_choice_values(csym);
1236 else {
1237 set_all_choice_values(csym);
1238 has_changed = true;
1239 }
1240 }
1241
1242 return has_changed;
1243}
1244
