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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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/* Helper function to facilitate fgets() by Jean Sacren. */
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 * Use microseconds derived seed, compensate for systems where it may
105 * be zero.
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 * If choice is mod then we may have more items selected
124 * and if no then no-one.
125 * In both cases stop.
126 */
127 if (csym->curr.tri != yes)
128 return false;
129
130 prop = sym_get_choice_prop(csym);
131
132 /* count entries in choice block */
133 cnt = 0;
134 expr_list_for_each_sym(prop->expr, e, sym)
135 cnt++;
136
137 /*
138 * find a random value and set it to yes,
139 * set the rest to no so we have only one set
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 /* clear VALID to get value calculated */
153 sym->flags &= ~SYMBOL_VALID;
154 }
155 csym->flags |= SYMBOL_DEF_USER;
156 /* clear VALID to get value calculated */
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 * can't go as the default in switch-case below, otherwise gcc whines
178 * about -Wmaybe-uninitialized
179 */
180 int pby = 50; /* probability of bool = y */
181 int pty = 33; /* probability of tristate = y */
182 int ptm = 33; /* probability of tristate = m */
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 * We have different type of choice blocks.
274 * If curr.tri equals to mod then we can select several
275 * choice symbols in one block.
276 * In this case we do nothing.
277 * If curr.tri equals yes then only one symbol can be
278 * selected in a choice block and we set it to yes,
279 * and the rest to no.
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 /* fall through */
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 /* print help */
370 if (line[1] == '\n') {
371 print_help(menu);
372 def = NULL;
373 break;
374 }
375 /* fall through */
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 /* fall through */
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 * Except in oldaskconfig mode, we show only menus that
585 * contain new symbols.
586 */
587 if (input_mode != oldaskconfig && rootEntry != menu) {
588 check_conf(menu);
589 return;
590 }
591 /* fall through */
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 const char *str;
651
652 if (sym->type == S_STRING) {
653 str = sym_get_string_value(sym);
654 str = sym_escape_string_value(str);
655 printf("%s%s=%s\n", CONFIG_, sym->name, str);
656 free((void *)str);
657 } else {
658 str = sym_get_string_value(sym);
659 printf("%s%s=%s\n", CONFIG_, sym->name, str);
660 }
661 }
662 break;
663 case helpnewconfig:
664 printf("-----\n");
665 print_help(menu);
666 printf("-----\n");
667 break;
668 default:
669 if (!conf_cnt++)
670 printf("*\n* Restart config...\n*\n");
671 rootEntry = menu_get_parent_menu(menu);
672 conf(rootEntry);
673 break;
674 }
675 }
676
677 for (child = menu->list; child; child = child->next)
678 check_conf(child);
679}
680
681static const struct option long_opts[] = {
682 {"help", no_argument, NULL, 'h'},
683 {"silent", no_argument, NULL, 's'},
684 {"oldaskconfig", no_argument, &input_mode_opt, oldaskconfig},
685 {"oldconfig", no_argument, &input_mode_opt, oldconfig},
686 {"syncconfig", no_argument, &input_mode_opt, syncconfig},
687 {"defconfig", required_argument, &input_mode_opt, defconfig},
688 {"savedefconfig", required_argument, &input_mode_opt, savedefconfig},
689 {"allnoconfig", no_argument, &input_mode_opt, allnoconfig},
690 {"allyesconfig", no_argument, &input_mode_opt, allyesconfig},
691 {"allmodconfig", no_argument, &input_mode_opt, allmodconfig},
692 {"alldefconfig", no_argument, &input_mode_opt, alldefconfig},
693 {"randconfig", no_argument, &input_mode_opt, randconfig},
694 {"listnewconfig", no_argument, &input_mode_opt, listnewconfig},
695 {"helpnewconfig", no_argument, &input_mode_opt, helpnewconfig},
696 {"olddefconfig", no_argument, &input_mode_opt, olddefconfig},
697 {"yes2modconfig", no_argument, &input_mode_opt, yes2modconfig},
698 {"mod2yesconfig", no_argument, &input_mode_opt, mod2yesconfig},
699 {NULL, 0, NULL, 0}
700};
701
702static void conf_usage(const char *progname)
703{
704 printf("Usage: %s [options] <kconfig-file>\n", progname);
705 printf("\n");
706 printf("Generic options:\n");
707 printf(" -h, --help Print this message and exit.\n");
708 printf(" -s, --silent Do not print log.\n");
709 printf("\n");
710 printf("Mode options:\n");
711 printf(" --listnewconfig List new options\n");
712 printf(" --helpnewconfig List new options and help text\n");
713 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
714 printf(" --oldconfig Update a configuration using a provided .config as base\n");
715 printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
716 " include/{generated/,config/}\n");
717 printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
718 printf(" --defconfig <file> New config with default defined in <file>\n");
719 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
720 printf(" --allnoconfig New config where all options are answered with no\n");
721 printf(" --allyesconfig New config where all options are answered with yes\n");
722 printf(" --allmodconfig New config where all options are answered with mod\n");
723 printf(" --alldefconfig New config with all symbols set to default\n");
724 printf(" --randconfig New config with random answer to all options\n");
725 printf(" --yes2modconfig Change answers from yes to mod if possible\n");
726 printf(" --mod2yesconfig Change answers from mod to yes if possible\n");
727 printf(" (If none of the above is given, --oldaskconfig is the default)\n");
728}
729
730int main(int ac, char **av)
731{
732 const char *progname = av[0];
733 int opt;
734 const char *name, *defconfig_file = NULL /* gcc uninit */;
735 int no_conf_write = 0;
736
737 tty_stdio = isatty(0) && isatty(1);
738
739 while ((opt = getopt_long(ac, av, "hs", long_opts, NULL)) != -1) {
740 switch (opt) {
741 case 'h':
742 conf_usage(progname);
743 exit(1);
744 break;
745 case 's':
746 conf_set_message_callback(NULL);
747 break;
748 case 0:
749 input_mode = input_mode_opt;
750 switch (input_mode) {
751 case syncconfig:
752 /*
753 * syncconfig is invoked during the build stage.
754 * Suppress distracting
755 * "configuration written to ..."
756 */
757 conf_set_message_callback(NULL);
758 sync_kconfig = 1;
759 break;
760 case defconfig:
761 case savedefconfig:
762 defconfig_file = optarg;
763 break;
764 case randconfig:
765 set_randconfig_seed();
766 break;
767 default:
768 break;
769 }
770 default:
771 break;
772 }
773 }
774 if (ac == optind) {
775 fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
776 conf_usage(progname);
777 exit(1);
778 }
779 conf_parse(av[optind]);
780 //zconfdump(stdout);
781
782 switch (input_mode) {
783 case defconfig:
784 if (conf_read(defconfig_file)) {
785 fprintf(stderr,
786 "***\n"
787 "*** Can't find default configuration \"%s\"!\n"
788 "***\n",
789 defconfig_file);
790 exit(1);
791 }
792 break;
793 case savedefconfig:
794 case syncconfig:
795 case oldaskconfig:
796 case oldconfig:
797 case listnewconfig:
798 case helpnewconfig:
799 case olddefconfig:
800 case yes2modconfig:
801 case mod2yesconfig:
802 conf_read(NULL);
803 break;
804 case allnoconfig:
805 case allyesconfig:
806 case allmodconfig:
807 case alldefconfig:
808 case randconfig:
809 name = getenv("KCONFIG_ALLCONFIG");
810 if (!name)
811 break;
812 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
813 if (conf_read_simple(name, S_DEF_USER)) {
814 fprintf(stderr,
815 "*** Can't read seed configuration \"%s\"!\n",
816 name);
817 exit(1);
818 }
819 break;
820 }
821 switch (input_mode) {
822 case allnoconfig: name = "allno.config"; break;
823 case allyesconfig: name = "allyes.config"; break;
824 case allmodconfig: name = "allmod.config"; break;
825 case alldefconfig: name = "alldef.config"; break;
826 case randconfig: name = "allrandom.config"; break;
827 default: break;
828 }
829 if (conf_read_simple(name, S_DEF_USER) &&
830 conf_read_simple("all.config", S_DEF_USER)) {
831 fprintf(stderr,
832 "*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n",
833 name);
834 exit(1);
835 }
836 break;
837 default:
838 break;
839 }
840
841 if (sync_kconfig) {
842 name = getenv("KCONFIG_NOSILENTUPDATE");
843 if (name && *name) {
844 if (conf_get_changed()) {
845 fprintf(stderr,
846 "\n*** The configuration requires explicit update.\n\n");
847 return 1;
848 }
849 no_conf_write = 1;
850 }
851 }
852
853 switch (input_mode) {
854 case allnoconfig:
855 conf_set_all_new_symbols(def_no);
856 break;
857 case allyesconfig:
858 conf_set_all_new_symbols(def_yes);
859 break;
860 case allmodconfig:
861 conf_set_all_new_symbols(def_mod);
862 break;
863 case alldefconfig:
864 conf_set_all_new_symbols(def_default);
865 break;
866 case randconfig:
867 /* Really nothing to do in this loop */
868 while (conf_set_all_new_symbols(def_random)) ;
869 break;
870 case defconfig:
871 conf_set_all_new_symbols(def_default);
872 break;
873 case savedefconfig:
874 break;
875 case yes2modconfig:
876 conf_rewrite_mod_or_yes(def_y2m);
877 break;
878 case mod2yesconfig:
879 conf_rewrite_mod_or_yes(def_m2y);
880 break;
881 case oldaskconfig:
882 rootEntry = &rootmenu;
883 conf(&rootmenu);
884 input_mode = oldconfig;
885 /* fall through */
886 case oldconfig:
887 case listnewconfig:
888 case helpnewconfig:
889 case syncconfig:
890 /* Update until a loop caused no more changes */
891 do {
892 conf_cnt = 0;
893 check_conf(&rootmenu);
894 } while (conf_cnt);
895 break;
896 case olddefconfig:
897 default:
898 break;
899 }
900
901 if (input_mode == savedefconfig) {
902 if (conf_write_defconfig(defconfig_file)) {
903 fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
904 defconfig_file);
905 return 1;
906 }
907 } else if (input_mode != listnewconfig && input_mode != helpnewconfig) {
908 if (!no_conf_write && conf_write(NULL)) {
909 fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
910 exit(1);
911 }
912
913 /*
914 * Create auto.conf if it does not exist.
915 * This prevents GNU Make 4.1 or older from emitting
916 * "include/config/auto.conf: No such file or directory"
917 * in the top-level Makefile
918 *
919 * syncconfig always creates or updates auto.conf because it is
920 * used during the build.
921 */
922 if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
923 fprintf(stderr,
924 "\n*** Error during sync of the configuration.\n\n");
925 return 1;
926 }
927 }
928 return 0;
929}
1/*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 */
5
6#include <locale.h>
7#include <ctype.h>
8#include <limits.h>
9#include <stdio.h>
10#include <stdlib.h>
11#include <string.h>
12#include <time.h>
13#include <unistd.h>
14#include <getopt.h>
15#include <sys/stat.h>
16#include <sys/time.h>
17#include <errno.h>
18
19#include "lkc.h"
20
21static void conf(struct menu *menu);
22static void check_conf(struct menu *menu);
23static void xfgets(char *str, int size, FILE *in);
24
25enum input_mode {
26 oldaskconfig,
27 silentoldconfig,
28 oldconfig,
29 allnoconfig,
30 allyesconfig,
31 allmodconfig,
32 alldefconfig,
33 randconfig,
34 defconfig,
35 savedefconfig,
36 listnewconfig,
37 olddefconfig,
38} input_mode = oldaskconfig;
39
40static int indent = 1;
41static int tty_stdio;
42static int valid_stdin = 1;
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
75static void check_stdin(void)
76{
77 if (!valid_stdin) {
78 printf(_("aborted!\n\n"));
79 printf(_("Console input/output is redirected. "));
80 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
81 exit(1);
82 }
83}
84
85static int conf_askvalue(struct symbol *sym, const char *def)
86{
87 enum symbol_type type = sym_get_type(sym);
88
89 if (!sym_has_value(sym))
90 printf(_("(NEW) "));
91
92 line[0] = '\n';
93 line[1] = 0;
94
95 if (!sym_is_changable(sym)) {
96 printf("%s\n", def);
97 line[0] = '\n';
98 line[1] = 0;
99 return 0;
100 }
101
102 switch (input_mode) {
103 case oldconfig:
104 case silentoldconfig:
105 if (sym_has_value(sym)) {
106 printf("%s\n", def);
107 return 0;
108 }
109 check_stdin();
110 /* fall through */
111 case oldaskconfig:
112 fflush(stdout);
113 xfgets(line, sizeof(line), stdin);
114 if (!tty_stdio)
115 printf("\n");
116 return 1;
117 default:
118 break;
119 }
120
121 switch (type) {
122 case S_INT:
123 case S_HEX:
124 case S_STRING:
125 printf("%s\n", def);
126 return 1;
127 default:
128 ;
129 }
130 printf("%s", line);
131 return 1;
132}
133
134static int conf_string(struct menu *menu)
135{
136 struct symbol *sym = menu->sym;
137 const char *def;
138
139 while (1) {
140 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
141 printf("(%s) ", sym->name);
142 def = sym_get_string_value(sym);
143 if (sym_get_string_value(sym))
144 printf("[%s] ", def);
145 if (!conf_askvalue(sym, def))
146 return 0;
147 switch (line[0]) {
148 case '\n':
149 break;
150 case '?':
151 /* print help */
152 if (line[1] == '\n') {
153 print_help(menu);
154 def = NULL;
155 break;
156 }
157 /* fall through */
158 default:
159 line[strlen(line)-1] = 0;
160 def = line;
161 }
162 if (def && sym_set_string_value(sym, def))
163 return 0;
164 }
165}
166
167static int conf_sym(struct menu *menu)
168{
169 struct symbol *sym = menu->sym;
170 tristate oldval, newval;
171
172 while (1) {
173 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
174 if (sym->name)
175 printf("(%s) ", sym->name);
176 putchar('[');
177 oldval = sym_get_tristate_value(sym);
178 switch (oldval) {
179 case no:
180 putchar('N');
181 break;
182 case mod:
183 putchar('M');
184 break;
185 case yes:
186 putchar('Y');
187 break;
188 }
189 if (oldval != no && sym_tristate_within_range(sym, no))
190 printf("/n");
191 if (oldval != mod && sym_tristate_within_range(sym, mod))
192 printf("/m");
193 if (oldval != yes && sym_tristate_within_range(sym, yes))
194 printf("/y");
195 if (menu_has_help(menu))
196 printf("/?");
197 printf("] ");
198 if (!conf_askvalue(sym, sym_get_string_value(sym)))
199 return 0;
200 strip(line);
201
202 switch (line[0]) {
203 case 'n':
204 case 'N':
205 newval = no;
206 if (!line[1] || !strcmp(&line[1], "o"))
207 break;
208 continue;
209 case 'm':
210 case 'M':
211 newval = mod;
212 if (!line[1])
213 break;
214 continue;
215 case 'y':
216 case 'Y':
217 newval = yes;
218 if (!line[1] || !strcmp(&line[1], "es"))
219 break;
220 continue;
221 case 0:
222 newval = oldval;
223 break;
224 case '?':
225 goto help;
226 default:
227 continue;
228 }
229 if (sym_set_tristate_value(sym, newval))
230 return 0;
231help:
232 print_help(menu);
233 }
234}
235
236static int conf_choice(struct menu *menu)
237{
238 struct symbol *sym, *def_sym;
239 struct menu *child;
240 bool is_new;
241
242 sym = menu->sym;
243 is_new = !sym_has_value(sym);
244 if (sym_is_changable(sym)) {
245 conf_sym(menu);
246 sym_calc_value(sym);
247 switch (sym_get_tristate_value(sym)) {
248 case no:
249 return 1;
250 case mod:
251 return 0;
252 case yes:
253 break;
254 }
255 } else {
256 switch (sym_get_tristate_value(sym)) {
257 case no:
258 return 1;
259 case mod:
260 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
261 return 0;
262 case yes:
263 break;
264 }
265 }
266
267 while (1) {
268 int cnt, def;
269
270 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
271 def_sym = sym_get_choice_value(sym);
272 cnt = def = 0;
273 line[0] = 0;
274 for (child = menu->list; child; child = child->next) {
275 if (!menu_is_visible(child))
276 continue;
277 if (!child->sym) {
278 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
279 continue;
280 }
281 cnt++;
282 if (child->sym == def_sym) {
283 def = cnt;
284 printf("%*c", indent, '>');
285 } else
286 printf("%*c", indent, ' ');
287 printf(" %d. %s", cnt, _(menu_get_prompt(child)));
288 if (child->sym->name)
289 printf(" (%s)", child->sym->name);
290 if (!sym_has_value(child->sym))
291 printf(_(" (NEW)"));
292 printf("\n");
293 }
294 printf(_("%*schoice"), indent - 1, "");
295 if (cnt == 1) {
296 printf("[1]: 1\n");
297 goto conf_childs;
298 }
299 printf("[1-%d", cnt);
300 if (menu_has_help(menu))
301 printf("?");
302 printf("]: ");
303 switch (input_mode) {
304 case oldconfig:
305 case silentoldconfig:
306 if (!is_new) {
307 cnt = def;
308 printf("%d\n", cnt);
309 break;
310 }
311 check_stdin();
312 /* fall through */
313 case oldaskconfig:
314 fflush(stdout);
315 xfgets(line, sizeof(line), stdin);
316 strip(line);
317 if (line[0] == '?') {
318 print_help(menu);
319 continue;
320 }
321 if (!line[0])
322 cnt = def;
323 else if (isdigit(line[0]))
324 cnt = atoi(line);
325 else
326 continue;
327 break;
328 default:
329 break;
330 }
331
332 conf_childs:
333 for (child = menu->list; child; child = child->next) {
334 if (!child->sym || !menu_is_visible(child))
335 continue;
336 if (!--cnt)
337 break;
338 }
339 if (!child)
340 continue;
341 if (line[0] && line[strlen(line) - 1] == '?') {
342 print_help(child);
343 continue;
344 }
345 sym_set_choice_value(sym, child->sym);
346 for (child = child->list; child; child = child->next) {
347 indent += 2;
348 conf(child);
349 indent -= 2;
350 }
351 return 1;
352 }
353}
354
355static void conf(struct menu *menu)
356{
357 struct symbol *sym;
358 struct property *prop;
359 struct menu *child;
360
361 if (!menu_is_visible(menu))
362 return;
363
364 sym = menu->sym;
365 prop = menu->prompt;
366 if (prop) {
367 const char *prompt;
368
369 switch (prop->type) {
370 case P_MENU:
371 if ((input_mode == silentoldconfig ||
372 input_mode == listnewconfig ||
373 input_mode == olddefconfig) &&
374 rootEntry != menu) {
375 check_conf(menu);
376 return;
377 }
378 /* fall through */
379 case P_COMMENT:
380 prompt = menu_get_prompt(menu);
381 if (prompt)
382 printf("%*c\n%*c %s\n%*c\n",
383 indent, '*',
384 indent, '*', _(prompt),
385 indent, '*');
386 default:
387 ;
388 }
389 }
390
391 if (!sym)
392 goto conf_childs;
393
394 if (sym_is_choice(sym)) {
395 conf_choice(menu);
396 if (sym->curr.tri != mod)
397 return;
398 goto conf_childs;
399 }
400
401 switch (sym->type) {
402 case S_INT:
403 case S_HEX:
404 case S_STRING:
405 conf_string(menu);
406 break;
407 default:
408 conf_sym(menu);
409 break;
410 }
411
412conf_childs:
413 if (sym)
414 indent += 2;
415 for (child = menu->list; child; child = child->next)
416 conf(child);
417 if (sym)
418 indent -= 2;
419}
420
421static void check_conf(struct menu *menu)
422{
423 struct symbol *sym;
424 struct menu *child;
425
426 if (!menu_is_visible(menu))
427 return;
428
429 sym = menu->sym;
430 if (sym && !sym_has_value(sym)) {
431 if (sym_is_changable(sym) ||
432 (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
433 if (input_mode == listnewconfig) {
434 if (sym->name && !sym_is_choice_value(sym)) {
435 printf("%s%s\n", CONFIG_, sym->name);
436 }
437 } else if (input_mode != olddefconfig) {
438 if (!conf_cnt++)
439 printf(_("*\n* Restart config...\n*\n"));
440 rootEntry = menu_get_parent_menu(menu);
441 conf(rootEntry);
442 }
443 }
444 }
445
446 for (child = menu->list; child; child = child->next)
447 check_conf(child);
448}
449
450static struct option long_opts[] = {
451 {"oldaskconfig", no_argument, NULL, oldaskconfig},
452 {"oldconfig", no_argument, NULL, oldconfig},
453 {"silentoldconfig", no_argument, NULL, silentoldconfig},
454 {"defconfig", optional_argument, NULL, defconfig},
455 {"savedefconfig", required_argument, NULL, savedefconfig},
456 {"allnoconfig", no_argument, NULL, allnoconfig},
457 {"allyesconfig", no_argument, NULL, allyesconfig},
458 {"allmodconfig", no_argument, NULL, allmodconfig},
459 {"alldefconfig", no_argument, NULL, alldefconfig},
460 {"randconfig", no_argument, NULL, randconfig},
461 {"listnewconfig", no_argument, NULL, listnewconfig},
462 {"olddefconfig", no_argument, NULL, olddefconfig},
463 /*
464 * oldnoconfig is an alias of olddefconfig, because people already
465 * are dependent on its behavior(sets new symbols to their default
466 * value but not 'n') with the counter-intuitive name.
467 */
468 {"oldnoconfig", no_argument, NULL, olddefconfig},
469 {NULL, 0, NULL, 0}
470};
471
472static void conf_usage(const char *progname)
473{
474
475 printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
476 printf("[option] is _one_ of the following:\n");
477 printf(" --listnewconfig List new options\n");
478 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
479 printf(" --oldconfig Update a configuration using a provided .config as base\n");
480 printf(" --silentoldconfig Same as oldconfig, but quietly, additionally update deps\n");
481 printf(" --olddefconfig Same as silentoldconfig but sets new symbols to their default value\n");
482 printf(" --oldnoconfig An alias of olddefconfig\n");
483 printf(" --defconfig <file> New config with default defined in <file>\n");
484 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
485 printf(" --allnoconfig New config where all options are answered with no\n");
486 printf(" --allyesconfig New config where all options are answered with yes\n");
487 printf(" --allmodconfig New config where all options are answered with mod\n");
488 printf(" --alldefconfig New config with all symbols set to default\n");
489 printf(" --randconfig New config with random answer to all options\n");
490}
491
492int main(int ac, char **av)
493{
494 const char *progname = av[0];
495 int opt;
496 const char *name, *defconfig_file = NULL /* gcc uninit */;
497 struct stat tmpstat;
498
499 setlocale(LC_ALL, "");
500 bindtextdomain(PACKAGE, LOCALEDIR);
501 textdomain(PACKAGE);
502
503 tty_stdio = isatty(0) && isatty(1) && isatty(2);
504
505 while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
506 if (opt == 's') {
507 conf_set_message_callback(NULL);
508 continue;
509 }
510 input_mode = (enum input_mode)opt;
511 switch (opt) {
512 case silentoldconfig:
513 sync_kconfig = 1;
514 break;
515 case defconfig:
516 case savedefconfig:
517 defconfig_file = optarg;
518 break;
519 case randconfig:
520 {
521 struct timeval now;
522 unsigned int seed;
523 char *seed_env;
524
525 /*
526 * Use microseconds derived seed,
527 * compensate for systems where it may be zero
528 */
529 gettimeofday(&now, NULL);
530 seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
531
532 seed_env = getenv("KCONFIG_SEED");
533 if( seed_env && *seed_env ) {
534 char *endp;
535 int tmp = (int)strtol(seed_env, &endp, 0);
536 if (*endp == '\0') {
537 seed = tmp;
538 }
539 }
540 fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
541 srand(seed);
542 break;
543 }
544 case oldaskconfig:
545 case oldconfig:
546 case allnoconfig:
547 case allyesconfig:
548 case allmodconfig:
549 case alldefconfig:
550 case listnewconfig:
551 case olddefconfig:
552 break;
553 case '?':
554 conf_usage(progname);
555 exit(1);
556 break;
557 }
558 }
559 if (ac == optind) {
560 printf(_("%s: Kconfig file missing\n"), av[0]);
561 conf_usage(progname);
562 exit(1);
563 }
564 name = av[optind];
565 conf_parse(name);
566 //zconfdump(stdout);
567 if (sync_kconfig) {
568 name = conf_get_configname();
569 if (stat(name, &tmpstat)) {
570 fprintf(stderr, _("***\n"
571 "*** Configuration file \"%s\" not found!\n"
572 "***\n"
573 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
574 "*** \"make menuconfig\" or \"make xconfig\").\n"
575 "***\n"), name);
576 exit(1);
577 }
578 }
579
580 switch (input_mode) {
581 case defconfig:
582 if (!defconfig_file)
583 defconfig_file = conf_get_default_confname();
584 if (conf_read(defconfig_file)) {
585 printf(_("***\n"
586 "*** Can't find default configuration \"%s\"!\n"
587 "***\n"), defconfig_file);
588 exit(1);
589 }
590 break;
591 case savedefconfig:
592 case silentoldconfig:
593 case oldaskconfig:
594 case oldconfig:
595 case listnewconfig:
596 case olddefconfig:
597 conf_read(NULL);
598 break;
599 case allnoconfig:
600 case allyesconfig:
601 case allmodconfig:
602 case alldefconfig:
603 case randconfig:
604 name = getenv("KCONFIG_ALLCONFIG");
605 if (!name)
606 break;
607 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
608 if (conf_read_simple(name, S_DEF_USER)) {
609 fprintf(stderr,
610 _("*** Can't read seed configuration \"%s\"!\n"),
611 name);
612 exit(1);
613 }
614 break;
615 }
616 switch (input_mode) {
617 case allnoconfig: name = "allno.config"; break;
618 case allyesconfig: name = "allyes.config"; break;
619 case allmodconfig: name = "allmod.config"; break;
620 case alldefconfig: name = "alldef.config"; break;
621 case randconfig: name = "allrandom.config"; break;
622 default: break;
623 }
624 if (conf_read_simple(name, S_DEF_USER) &&
625 conf_read_simple("all.config", S_DEF_USER)) {
626 fprintf(stderr,
627 _("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
628 name);
629 exit(1);
630 }
631 break;
632 default:
633 break;
634 }
635
636 if (sync_kconfig) {
637 if (conf_get_changed()) {
638 name = getenv("KCONFIG_NOSILENTUPDATE");
639 if (name && *name) {
640 fprintf(stderr,
641 _("\n*** The configuration requires explicit update.\n\n"));
642 return 1;
643 }
644 }
645 valid_stdin = tty_stdio;
646 }
647
648 switch (input_mode) {
649 case allnoconfig:
650 conf_set_all_new_symbols(def_no);
651 break;
652 case allyesconfig:
653 conf_set_all_new_symbols(def_yes);
654 break;
655 case allmodconfig:
656 conf_set_all_new_symbols(def_mod);
657 break;
658 case alldefconfig:
659 conf_set_all_new_symbols(def_default);
660 break;
661 case randconfig:
662 /* Really nothing to do in this loop */
663 while (conf_set_all_new_symbols(def_random)) ;
664 break;
665 case defconfig:
666 conf_set_all_new_symbols(def_default);
667 break;
668 case savedefconfig:
669 break;
670 case oldaskconfig:
671 rootEntry = &rootmenu;
672 conf(&rootmenu);
673 input_mode = silentoldconfig;
674 /* fall through */
675 case oldconfig:
676 case listnewconfig:
677 case olddefconfig:
678 case silentoldconfig:
679 /* Update until a loop caused no more changes */
680 do {
681 conf_cnt = 0;
682 check_conf(&rootmenu);
683 } while (conf_cnt &&
684 (input_mode != listnewconfig &&
685 input_mode != olddefconfig));
686 break;
687 }
688
689 if (sync_kconfig) {
690 /* silentoldconfig is used during the build so we shall update autoconf.
691 * All other commands are only used to generate a config.
692 */
693 if (conf_get_changed() && conf_write(NULL)) {
694 fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
695 exit(1);
696 }
697 if (conf_write_autoconf()) {
698 fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
699 return 1;
700 }
701 } else if (input_mode == savedefconfig) {
702 if (conf_write_defconfig(defconfig_file)) {
703 fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
704 defconfig_file);
705 return 1;
706 }
707 } else if (input_mode != listnewconfig) {
708 if (conf_write(NULL)) {
709 fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
710 exit(1);
711 }
712 }
713 return 0;
714}
715
716/*
717 * Helper function to facilitate fgets() by Jean Sacren.
718 */
719void xfgets(char *str, int size, FILE *in)
720{
721 if (fgets(str, size, in) == NULL)
722 fprintf(stderr, "\nError in reading or end of file.\n");
723}