1
2
3
4
5
6#include <ctype.h>
7#include <limits.h>
8#include <stdio.h>
9#include <stdlib.h>
10#include <string.h>
11#include <time.h>
12#include <unistd.h>
13#include <getopt.h>
14#include <sys/time.h>
15#include <errno.h>
16
17#include "lkc.h"
18
19static void conf(struct menu *menu);
20static void check_conf(struct menu *menu);
21
22enum input_mode {
23 oldaskconfig,
24 syncconfig,
25 oldconfig,
26 allnoconfig,
27 allyesconfig,
28 allmodconfig,
29 alldefconfig,
30 randconfig,
31 defconfig,
32 savedefconfig,
33 listnewconfig,
34 helpnewconfig,
35 olddefconfig,
36 yes2modconfig,
37 mod2yesconfig,
38};
39static enum input_mode input_mode = oldaskconfig;
40static int input_mode_opt;
41static int indent = 1;
42static int tty_stdio;
43static int sync_kconfig;
44static int conf_cnt;
45static char line[PATH_MAX];
46static struct menu *rootEntry;
47
48static void print_help(struct menu *menu)
49{
50 struct gstr help = str_new();
51
52 menu_get_ext_help(menu, &help);
53
54 printf("\n%s\n", str_get(&help));
55 str_free(&help);
56}
57
58static void strip(char *str)
59{
60 char *p = str;
61 int l;
62
63 while ((isspace(*p)))
64 p++;
65 l = strlen(p);
66 if (p != str)
67 memmove(str, p, l + 1);
68 if (!l)
69 return;
70 p = str + l - 1;
71 while ((isspace(*p)))
72 *p-- = 0;
73}
74
75
76static void xfgets(char *str, int size, FILE *in)
77{
78 if (!fgets(str, size, in))
79 fprintf(stderr, "\nError in reading or end of file.\n");
80
81 if (!tty_stdio)
82 printf("%s", str);
83}
84
85static void set_randconfig_seed(void)
86{
87 unsigned int seed;
88 char *env;
89 bool seed_set = false;
90
91 env = getenv("KCONFIG_SEED");
92 if (env && *env) {
93 char *endp;
94
95 seed = strtol(env, &endp, 0);
96 if (*endp == '\0')
97 seed_set = true;
98 }
99
100 if (!seed_set) {
101 struct timeval now;
102
103
104
105
106
107 gettimeofday(&now, NULL);
108 seed = (now.tv_sec + 1) * (now.tv_usec + 1);
109 }
110
111 printf("KCONFIG_SEED=0x%X\n", seed);
112 srand(seed);
113}
114
115static bool randomize_choice_values(struct symbol *csym)
116{
117 struct property *prop;
118 struct symbol *sym;
119 struct expr *e;
120 int cnt, def;
121
122
123
124
125
126
127 if (csym->curr.tri != yes)
128 return false;
129
130 prop = sym_get_choice_prop(csym);
131
132
133 cnt = 0;
134 expr_list_for_each_sym(prop->expr, e, sym)
135 cnt++;
136
137
138
139
140
141 def = rand() % cnt;
142
143 cnt = 0;
144 expr_list_for_each_sym(prop->expr, e, sym) {
145 if (def == cnt++) {
146 sym->def[S_DEF_USER].tri = yes;
147 csym->def[S_DEF_USER].val = sym;
148 } else {
149 sym->def[S_DEF_USER].tri = no;
150 }
151 sym->flags |= SYMBOL_DEF_USER;
152
153 sym->flags &= ~SYMBOL_VALID;
154 }
155 csym->flags |= SYMBOL_DEF_USER;
156
157 csym->flags &= ~SYMBOL_VALID;
158
159 return true;
160}
161
162enum conf_def_mode {
163 def_default,
164 def_yes,
165 def_mod,
166 def_y2m,
167 def_m2y,
168 def_no,
169 def_random
170};
171
172static bool conf_set_all_new_symbols(enum conf_def_mode mode)
173{
174 struct symbol *sym, *csym;
175 int i, cnt;
176
177
178
179
180 int pby = 50;
181 int pty = 33;
182 int ptm = 33;
183 bool has_changed = false;
184
185 if (mode == def_random) {
186 int n, p[3];
187 char *env = getenv("KCONFIG_PROBABILITY");
188
189 n = 0;
190 while (env && *env) {
191 char *endp;
192 int tmp = strtol(env, &endp, 10);
193
194 if (tmp >= 0 && tmp <= 100) {
195 p[n++] = tmp;
196 } else {
197 errno = ERANGE;
198 perror("KCONFIG_PROBABILITY");
199 exit(1);
200 }
201 env = (*endp == ':') ? endp + 1 : endp;
202 if (n >= 3)
203 break;
204 }
205 switch (n) {
206 case 1:
207 pby = p[0];
208 ptm = pby / 2;
209 pty = pby - ptm;
210 break;
211 case 2:
212 pty = p[0];
213 ptm = p[1];
214 pby = pty + ptm;
215 break;
216 case 3:
217 pby = p[0];
218 pty = p[1];
219 ptm = p[2];
220 break;
221 }
222
223 if (pty + ptm > 100) {
224 errno = ERANGE;
225 perror("KCONFIG_PROBABILITY");
226 exit(1);
227 }
228 }
229
230 for_all_symbols(i, sym) {
231 if (sym_has_value(sym) || sym->flags & SYMBOL_VALID)
232 continue;
233 switch (sym_get_type(sym)) {
234 case S_BOOLEAN:
235 case S_TRISTATE:
236 has_changed = true;
237 switch (mode) {
238 case def_yes:
239 sym->def[S_DEF_USER].tri = yes;
240 break;
241 case def_mod:
242 sym->def[S_DEF_USER].tri = mod;
243 break;
244 case def_no:
245 sym->def[S_DEF_USER].tri = no;
246 break;
247 case def_random:
248 sym->def[S_DEF_USER].tri = no;
249 cnt = rand() % 100;
250 if (sym->type == S_TRISTATE) {
251 if (cnt < pty)
252 sym->def[S_DEF_USER].tri = yes;
253 else if (cnt < pty + ptm)
254 sym->def[S_DEF_USER].tri = mod;
255 } else if (cnt < pby)
256 sym->def[S_DEF_USER].tri = yes;
257 break;
258 default:
259 continue;
260 }
261 if (!(sym_is_choice(sym) && mode == def_random))
262 sym->flags |= SYMBOL_DEF_USER;
263 break;
264 default:
265 break;
266 }
267
268 }
269
270 sym_clear_all_valid();
271
272
273
274
275
276
277
278
279
280
281 if (mode != def_random) {
282 for_all_symbols(i, csym) {
283 if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
284 sym_is_choice_value(csym))
285 csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
286 }
287 }
288
289 for_all_symbols(i, csym) {
290 if (sym_has_value(csym) || !sym_is_choice(csym))
291 continue;
292
293 sym_calc_value(csym);
294 if (mode == def_random)
295 has_changed |= randomize_choice_values(csym);
296 else {
297 set_all_choice_values(csym);
298 has_changed = true;
299 }
300 }
301
302 return has_changed;
303}
304
305static void conf_rewrite_mod_or_yes(enum conf_def_mode mode)
306{
307 struct symbol *sym;
308 int i;
309 tristate old_val = (mode == def_y2m) ? yes : mod;
310 tristate new_val = (mode == def_y2m) ? mod : yes;
311
312 for_all_symbols(i, sym) {
313 if (sym_get_type(sym) == S_TRISTATE &&
314 sym->def[S_DEF_USER].tri == old_val)
315 sym->def[S_DEF_USER].tri = new_val;
316 }
317 sym_clear_all_valid();
318}
319
320static int conf_askvalue(struct symbol *sym, const char *def)
321{
322 if (!sym_has_value(sym))
323 printf("(NEW) ");
324
325 line[0] = '\n';
326 line[1] = 0;
327
328 if (!sym_is_changeable(sym)) {
329 printf("%s\n", def);
330 line[0] = '\n';
331 line[1] = 0;
332 return 0;
333 }
334
335 switch (input_mode) {
336 case oldconfig:
337 case syncconfig:
338 if (sym_has_value(sym)) {
339 printf("%s\n", def);
340 return 0;
341 }
342
343 default:
344 fflush(stdout);
345 xfgets(line, sizeof(line), stdin);
346 break;
347 }
348
349 return 1;
350}
351
352static int conf_string(struct menu *menu)
353{
354 struct symbol *sym = menu->sym;
355 const char *def;
356
357 while (1) {
358 printf("%*s%s ", indent - 1, "", menu->prompt->text);
359 printf("(%s) ", sym->name);
360 def = sym_get_string_value(sym);
361 if (def)
362 printf("[%s] ", def);
363 if (!conf_askvalue(sym, def))
364 return 0;
365 switch (line[0]) {
366 case '\n':
367 break;
368 case '?':
369
370 if (line[1] == '\n') {
371 print_help(menu);
372 def = NULL;
373 break;
374 }
375
376 default:
377 line[strlen(line)-1] = 0;
378 def = line;
379 }
380 if (def && sym_set_string_value(sym, def))
381 return 0;
382 }
383}
384
385static int conf_sym(struct menu *menu)
386{
387 struct symbol *sym = menu->sym;
388 tristate oldval, newval;
389
390 while (1) {
391 printf("%*s%s ", indent - 1, "", menu->prompt->text);
392 if (sym->name)
393 printf("(%s) ", sym->name);
394 putchar('[');
395 oldval = sym_get_tristate_value(sym);
396 switch (oldval) {
397 case no:
398 putchar('N');
399 break;
400 case mod:
401 putchar('M');
402 break;
403 case yes:
404 putchar('Y');
405 break;
406 }
407 if (oldval != no && sym_tristate_within_range(sym, no))
408 printf("/n");
409 if (oldval != mod && sym_tristate_within_range(sym, mod))
410 printf("/m");
411 if (oldval != yes && sym_tristate_within_range(sym, yes))
412 printf("/y");
413 printf("/?] ");
414 if (!conf_askvalue(sym, sym_get_string_value(sym)))
415 return 0;
416 strip(line);
417
418 switch (line[0]) {
419 case 'n':
420 case 'N':
421 newval = no;
422 if (!line[1] || !strcmp(&line[1], "o"))
423 break;
424 continue;
425 case 'm':
426 case 'M':
427 newval = mod;
428 if (!line[1])
429 break;
430 continue;
431 case 'y':
432 case 'Y':
433 newval = yes;
434 if (!line[1] || !strcmp(&line[1], "es"))
435 break;
436 continue;
437 case 0:
438 newval = oldval;
439 break;
440 case '?':
441 goto help;
442 default:
443 continue;
444 }
445 if (sym_set_tristate_value(sym, newval))
446 return 0;
447help:
448 print_help(menu);
449 }
450}
451
452static int conf_choice(struct menu *menu)
453{
454 struct symbol *sym, *def_sym;
455 struct menu *child;
456 bool is_new;
457
458 sym = menu->sym;
459 is_new = !sym_has_value(sym);
460 if (sym_is_changeable(sym)) {
461 conf_sym(menu);
462 sym_calc_value(sym);
463 switch (sym_get_tristate_value(sym)) {
464 case no:
465 return 1;
466 case mod:
467 return 0;
468 case yes:
469 break;
470 }
471 } else {
472 switch (sym_get_tristate_value(sym)) {
473 case no:
474 return 1;
475 case mod:
476 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
477 return 0;
478 case yes:
479 break;
480 }
481 }
482
483 while (1) {
484 int cnt, def;
485
486 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
487 def_sym = sym_get_choice_value(sym);
488 cnt = def = 0;
489 line[0] = 0;
490 for (child = menu->list; child; child = child->next) {
491 if (!menu_is_visible(child))
492 continue;
493 if (!child->sym) {
494 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
495 continue;
496 }
497 cnt++;
498 if (child->sym == def_sym) {
499 def = cnt;
500 printf("%*c", indent, '>');
501 } else
502 printf("%*c", indent, ' ');
503 printf(" %d. %s", cnt, menu_get_prompt(child));
504 if (child->sym->name)
505 printf(" (%s)", child->sym->name);
506 if (!sym_has_value(child->sym))
507 printf(" (NEW)");
508 printf("\n");
509 }
510 printf("%*schoice", indent - 1, "");
511 if (cnt == 1) {
512 printf("[1]: 1\n");
513 goto conf_childs;
514 }
515 printf("[1-%d?]: ", cnt);
516 switch (input_mode) {
517 case oldconfig:
518 case syncconfig:
519 if (!is_new) {
520 cnt = def;
521 printf("%d\n", cnt);
522 break;
523 }
524
525 case oldaskconfig:
526 fflush(stdout);
527 xfgets(line, sizeof(line), stdin);
528 strip(line);
529 if (line[0] == '?') {
530 print_help(menu);
531 continue;
532 }
533 if (!line[0])
534 cnt = def;
535 else if (isdigit(line[0]))
536 cnt = atoi(line);
537 else
538 continue;
539 break;
540 default:
541 break;
542 }
543
544 conf_childs:
545 for (child = menu->list; child; child = child->next) {
546 if (!child->sym || !menu_is_visible(child))
547 continue;
548 if (!--cnt)
549 break;
550 }
551 if (!child)
552 continue;
553 if (line[0] && line[strlen(line) - 1] == '?') {
554 print_help(child);
555 continue;
556 }
557 sym_set_choice_value(sym, child->sym);
558 for (child = child->list; child; child = child->next) {
559 indent += 2;
560 conf(child);
561 indent -= 2;
562 }
563 return 1;
564 }
565}
566
567static void conf(struct menu *menu)
568{
569 struct symbol *sym;
570 struct property *prop;
571 struct menu *child;
572
573 if (!menu_is_visible(menu))
574 return;
575
576 sym = menu->sym;
577 prop = menu->prompt;
578 if (prop) {
579 const char *prompt;
580
581 switch (prop->type) {
582 case P_MENU:
583
584
585
586
587 if (input_mode != oldaskconfig && rootEntry != menu) {
588 check_conf(menu);
589 return;
590 }
591
592 case P_COMMENT:
593 prompt = menu_get_prompt(menu);
594 if (prompt)
595 printf("%*c\n%*c %s\n%*c\n",
596 indent, '*',
597 indent, '*', prompt,
598 indent, '*');
599 default:
600 ;
601 }
602 }
603
604 if (!sym)
605 goto conf_childs;
606
607 if (sym_is_choice(sym)) {
608 conf_choice(menu);
609 if (sym->curr.tri != mod)
610 return;
611 goto conf_childs;
612 }
613
614 switch (sym->type) {
615 case S_INT:
616 case S_HEX:
617 case S_STRING:
618 conf_string(menu);
619 break;
620 default:
621 conf_sym(menu);
622 break;
623 }
624
625conf_childs:
626 if (sym)
627 indent += 2;
628 for (child = menu->list; child; child = child->next)
629 conf(child);
630 if (sym)
631 indent -= 2;
632}
633
634static void check_conf(struct menu *menu)
635{
636 struct symbol *sym;
637 struct menu *child;
638
639 if (!menu_is_visible(menu))
640 return;
641
642 sym = menu->sym;
643 if (sym && !sym_has_value(sym) &&
644 (sym_is_changeable(sym) ||
645 (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes))) {
646
647 switch (input_mode) {
648 case listnewconfig:
649 if (sym->name)
650 print_symbol_for_listconfig(sym);
651 break;
652 case helpnewconfig:
653 printf("-----\n");
654 print_help(menu);
655 printf("-----\n");
656 break;
657 default:
658 if (!conf_cnt++)
659 printf("*\n* Restart config...\n*\n");
660 rootEntry = menu_get_parent_menu(menu);
661 conf(rootEntry);
662 break;
663 }
664 }
665
666 for (child = menu->list; child; child = child->next)
667 check_conf(child);
668}
669
670static const struct option long_opts[] = {
671 {"help", no_argument, NULL, 'h'},
672 {"silent", no_argument, NULL, 's'},
673 {"oldaskconfig", no_argument, &input_mode_opt, oldaskconfig},
674 {"oldconfig", no_argument, &input_mode_opt, oldconfig},
675 {"syncconfig", no_argument, &input_mode_opt, syncconfig},
676 {"defconfig", required_argument, &input_mode_opt, defconfig},
677 {"savedefconfig", required_argument, &input_mode_opt, savedefconfig},
678 {"allnoconfig", no_argument, &input_mode_opt, allnoconfig},
679 {"allyesconfig", no_argument, &input_mode_opt, allyesconfig},
680 {"allmodconfig", no_argument, &input_mode_opt, allmodconfig},
681 {"alldefconfig", no_argument, &input_mode_opt, alldefconfig},
682 {"randconfig", no_argument, &input_mode_opt, randconfig},
683 {"listnewconfig", no_argument, &input_mode_opt, listnewconfig},
684 {"helpnewconfig", no_argument, &input_mode_opt, helpnewconfig},
685 {"olddefconfig", no_argument, &input_mode_opt, olddefconfig},
686 {"yes2modconfig", no_argument, &input_mode_opt, yes2modconfig},
687 {"mod2yesconfig", no_argument, &input_mode_opt, mod2yesconfig},
688 {NULL, 0, NULL, 0}
689};
690
691static void conf_usage(const char *progname)
692{
693 printf("Usage: %s [options] <kconfig-file>\n", progname);
694 printf("\n");
695 printf("Generic options:\n");
696 printf(" -h, --help Print this message and exit.\n");
697 printf(" -s, --silent Do not print log.\n");
698 printf("\n");
699 printf("Mode options:\n");
700 printf(" --listnewconfig List new options\n");
701 printf(" --helpnewconfig List new options and help text\n");
702 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
703 printf(" --oldconfig Update a configuration using a provided .config as base\n");
704 printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
705 " include/{generated/,config/}\n");
706 printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
707 printf(" --defconfig <file> New config with default defined in <file>\n");
708 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
709 printf(" --allnoconfig New config where all options are answered with no\n");
710 printf(" --allyesconfig New config where all options are answered with yes\n");
711 printf(" --allmodconfig New config where all options are answered with mod\n");
712 printf(" --alldefconfig New config with all symbols set to default\n");
713 printf(" --randconfig New config with random answer to all options\n");
714 printf(" --yes2modconfig Change answers from yes to mod if possible\n");
715 printf(" --mod2yesconfig Change answers from mod to yes if possible\n");
716 printf(" (If none of the above is given, --oldaskconfig is the default)\n");
717}
718
719int main(int ac, char **av)
720{
721 const char *progname = av[0];
722 int opt;
723 const char *name, *defconfig_file = NULL ;
724 int no_conf_write = 0;
725
726 tty_stdio = isatty(0) && isatty(1);
727
728 while ((opt = getopt_long(ac, av, "hs", long_opts, NULL)) != -1) {
729 switch (opt) {
730 case 'h':
731 conf_usage(progname);
732 exit(1);
733 break;
734 case 's':
735 conf_set_message_callback(NULL);
736 break;
737 case 0:
738 input_mode = input_mode_opt;
739 switch (input_mode) {
740 case syncconfig:
741
742
743
744
745
746 conf_set_message_callback(NULL);
747 sync_kconfig = 1;
748 break;
749 case defconfig:
750 case savedefconfig:
751 defconfig_file = optarg;
752 break;
753 case randconfig:
754 set_randconfig_seed();
755 break;
756 default:
757 break;
758 }
759 default:
760 break;
761 }
762 }
763 if (ac == optind) {
764 fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
765 conf_usage(progname);
766 exit(1);
767 }
768 conf_parse(av[optind]);
769
770
771 switch (input_mode) {
772 case defconfig:
773 if (conf_read(defconfig_file)) {
774 fprintf(stderr,
775 "***\n"
776 "*** Can't find default configuration \"%s\"!\n"
777 "***\n",
778 defconfig_file);
779 exit(1);
780 }
781 break;
782 case savedefconfig:
783 case syncconfig:
784 case oldaskconfig:
785 case oldconfig:
786 case listnewconfig:
787 case helpnewconfig:
788 case olddefconfig:
789 case yes2modconfig:
790 case mod2yesconfig:
791 conf_read(NULL);
792 break;
793 case allnoconfig:
794 case allyesconfig:
795 case allmodconfig:
796 case alldefconfig:
797 case randconfig:
798 name = getenv("KCONFIG_ALLCONFIG");
799 if (!name)
800 break;
801 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
802 if (conf_read_simple(name, S_DEF_USER)) {
803 fprintf(stderr,
804 "*** Can't read seed configuration \"%s\"!\n",
805 name);
806 exit(1);
807 }
808 break;
809 }
810 switch (input_mode) {
811 case allnoconfig: name = "allno.config"; break;
812 case allyesconfig: name = "allyes.config"; break;
813 case allmodconfig: name = "allmod.config"; break;
814 case alldefconfig: name = "alldef.config"; break;
815 case randconfig: name = "allrandom.config"; break;
816 default: break;
817 }
818 if (conf_read_simple(name, S_DEF_USER) &&
819 conf_read_simple("all.config", S_DEF_USER)) {
820 fprintf(stderr,
821 "*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n",
822 name);
823 exit(1);
824 }
825 break;
826 default:
827 break;
828 }
829
830 if (sync_kconfig) {
831 name = getenv("KCONFIG_NOSILENTUPDATE");
832 if (name && *name) {
833 if (conf_get_changed()) {
834 fprintf(stderr,
835 "\n*** The configuration requires explicit update.\n\n");
836 return 1;
837 }
838 no_conf_write = 1;
839 }
840 }
841
842 switch (input_mode) {
843 case allnoconfig:
844 conf_set_all_new_symbols(def_no);
845 break;
846 case allyesconfig:
847 conf_set_all_new_symbols(def_yes);
848 break;
849 case allmodconfig:
850 conf_set_all_new_symbols(def_mod);
851 break;
852 case alldefconfig:
853 conf_set_all_new_symbols(def_default);
854 break;
855 case randconfig:
856
857 while (conf_set_all_new_symbols(def_random)) ;
858 break;
859 case defconfig:
860 conf_set_all_new_symbols(def_default);
861 break;
862 case savedefconfig:
863 break;
864 case yes2modconfig:
865 conf_rewrite_mod_or_yes(def_y2m);
866 break;
867 case mod2yesconfig:
868 conf_rewrite_mod_or_yes(def_m2y);
869 break;
870 case oldaskconfig:
871 rootEntry = &rootmenu;
872 conf(&rootmenu);
873 input_mode = oldconfig;
874
875 case oldconfig:
876 case listnewconfig:
877 case helpnewconfig:
878 case syncconfig:
879
880 do {
881 conf_cnt = 0;
882 check_conf(&rootmenu);
883 } while (conf_cnt);
884 break;
885 case olddefconfig:
886 default:
887 break;
888 }
889
890 if (input_mode == savedefconfig) {
891 if (conf_write_defconfig(defconfig_file)) {
892 fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
893 defconfig_file);
894 return 1;
895 }
896 } else if (input_mode != listnewconfig && input_mode != helpnewconfig) {
897 if (!no_conf_write && conf_write(NULL)) {
898 fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
899 exit(1);
900 }
901
902
903
904
905
906
907
908
909
910
911 if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
912 fprintf(stderr,
913 "\n*** Error during sync of the configuration.\n\n");
914 return 1;
915 }
916 }
917 return 0;
918}
919
