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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/stat.h>
15#include <sys/time.h>
16#include <errno.h>
17
18#include "lkc.h"
19
20static void conf(struct menu *menu);
21static void check_conf(struct menu *menu);
22
23enum input_mode {
24 oldaskconfig,
25 syncconfig,
26 oldconfig,
27 allnoconfig,
28 allyesconfig,
29 allmodconfig,
30 alldefconfig,
31 randconfig,
32 defconfig,
33 savedefconfig,
34 listnewconfig,
35 helpnewconfig,
36 olddefconfig,
37 yes2modconfig,
38 mod2yesconfig,
39};
40static enum input_mode input_mode = oldaskconfig;
41
42static int indent = 1;
43static int tty_stdio;
44static int sync_kconfig;
45static int conf_cnt;
46static char line[PATH_MAX];
47static struct menu *rootEntry;
48
49static void print_help(struct menu *menu)
50{
51 struct gstr help = str_new();
52
53 menu_get_ext_help(menu, &help);
54
55 printf("\n%s\n", str_get(&help));
56 str_free(&help);
57}
58
59static void strip(char *str)
60{
61 char *p = str;
62 int l;
63
64 while ((isspace(*p)))
65 p++;
66 l = strlen(p);
67 if (p != str)
68 memmove(str, p, l + 1);
69 if (!l)
70 return;
71 p = str + l - 1;
72 while ((isspace(*p)))
73 *p-- = 0;
74}
75
76/* Helper function to facilitate fgets() by Jean Sacren. */
77static void xfgets(char *str, int size, FILE *in)
78{
79 if (!fgets(str, size, in))
80 fprintf(stderr, "\nError in reading or end of file.\n");
81
82 if (!tty_stdio)
83 printf("%s", str);
84}
85
86static int conf_askvalue(struct symbol *sym, const char *def)
87{
88 enum symbol_type type = sym_get_type(sym);
89
90 if (!sym_has_value(sym))
91 printf("(NEW) ");
92
93 line[0] = '\n';
94 line[1] = 0;
95
96 if (!sym_is_changeable(sym)) {
97 printf("%s\n", def);
98 line[0] = '\n';
99 line[1] = 0;
100 return 0;
101 }
102
103 switch (input_mode) {
104 case oldconfig:
105 case syncconfig:
106 if (sym_has_value(sym)) {
107 printf("%s\n", def);
108 return 0;
109 }
110 /* fall through */
111 case oldaskconfig:
112 fflush(stdout);
113 xfgets(line, sizeof(line), stdin);
114 return 1;
115 default:
116 break;
117 }
118
119 switch (type) {
120 case S_INT:
121 case S_HEX:
122 case S_STRING:
123 printf("%s\n", def);
124 return 1;
125 default:
126 ;
127 }
128 printf("%s", line);
129 return 1;
130}
131
132static int conf_string(struct menu *menu)
133{
134 struct symbol *sym = menu->sym;
135 const char *def;
136
137 while (1) {
138 printf("%*s%s ", indent - 1, "", menu->prompt->text);
139 printf("(%s) ", sym->name);
140 def = sym_get_string_value(sym);
141 if (sym_get_string_value(sym))
142 printf("[%s] ", def);
143 if (!conf_askvalue(sym, def))
144 return 0;
145 switch (line[0]) {
146 case '\n':
147 break;
148 case '?':
149 /* print help */
150 if (line[1] == '\n') {
151 print_help(menu);
152 def = NULL;
153 break;
154 }
155 /* fall through */
156 default:
157 line[strlen(line)-1] = 0;
158 def = line;
159 }
160 if (def && sym_set_string_value(sym, def))
161 return 0;
162 }
163}
164
165static int conf_sym(struct menu *menu)
166{
167 struct symbol *sym = menu->sym;
168 tristate oldval, newval;
169
170 while (1) {
171 printf("%*s%s ", indent - 1, "", menu->prompt->text);
172 if (sym->name)
173 printf("(%s) ", sym->name);
174 putchar('[');
175 oldval = sym_get_tristate_value(sym);
176 switch (oldval) {
177 case no:
178 putchar('N');
179 break;
180 case mod:
181 putchar('M');
182 break;
183 case yes:
184 putchar('Y');
185 break;
186 }
187 if (oldval != no && sym_tristate_within_range(sym, no))
188 printf("/n");
189 if (oldval != mod && sym_tristate_within_range(sym, mod))
190 printf("/m");
191 if (oldval != yes && sym_tristate_within_range(sym, yes))
192 printf("/y");
193 printf("/?] ");
194 if (!conf_askvalue(sym, sym_get_string_value(sym)))
195 return 0;
196 strip(line);
197
198 switch (line[0]) {
199 case 'n':
200 case 'N':
201 newval = no;
202 if (!line[1] || !strcmp(&line[1], "o"))
203 break;
204 continue;
205 case 'm':
206 case 'M':
207 newval = mod;
208 if (!line[1])
209 break;
210 continue;
211 case 'y':
212 case 'Y':
213 newval = yes;
214 if (!line[1] || !strcmp(&line[1], "es"))
215 break;
216 continue;
217 case 0:
218 newval = oldval;
219 break;
220 case '?':
221 goto help;
222 default:
223 continue;
224 }
225 if (sym_set_tristate_value(sym, newval))
226 return 0;
227help:
228 print_help(menu);
229 }
230}
231
232static int conf_choice(struct menu *menu)
233{
234 struct symbol *sym, *def_sym;
235 struct menu *child;
236 bool is_new;
237
238 sym = menu->sym;
239 is_new = !sym_has_value(sym);
240 if (sym_is_changeable(sym)) {
241 conf_sym(menu);
242 sym_calc_value(sym);
243 switch (sym_get_tristate_value(sym)) {
244 case no:
245 return 1;
246 case mod:
247 return 0;
248 case yes:
249 break;
250 }
251 } else {
252 switch (sym_get_tristate_value(sym)) {
253 case no:
254 return 1;
255 case mod:
256 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
257 return 0;
258 case yes:
259 break;
260 }
261 }
262
263 while (1) {
264 int cnt, def;
265
266 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
267 def_sym = sym_get_choice_value(sym);
268 cnt = def = 0;
269 line[0] = 0;
270 for (child = menu->list; child; child = child->next) {
271 if (!menu_is_visible(child))
272 continue;
273 if (!child->sym) {
274 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
275 continue;
276 }
277 cnt++;
278 if (child->sym == def_sym) {
279 def = cnt;
280 printf("%*c", indent, '>');
281 } else
282 printf("%*c", indent, ' ');
283 printf(" %d. %s", cnt, menu_get_prompt(child));
284 if (child->sym->name)
285 printf(" (%s)", child->sym->name);
286 if (!sym_has_value(child->sym))
287 printf(" (NEW)");
288 printf("\n");
289 }
290 printf("%*schoice", indent - 1, "");
291 if (cnt == 1) {
292 printf("[1]: 1\n");
293 goto conf_childs;
294 }
295 printf("[1-%d?]: ", cnt);
296 switch (input_mode) {
297 case oldconfig:
298 case syncconfig:
299 if (!is_new) {
300 cnt = def;
301 printf("%d\n", cnt);
302 break;
303 }
304 /* fall through */
305 case oldaskconfig:
306 fflush(stdout);
307 xfgets(line, sizeof(line), stdin);
308 strip(line);
309 if (line[0] == '?') {
310 print_help(menu);
311 continue;
312 }
313 if (!line[0])
314 cnt = def;
315 else if (isdigit(line[0]))
316 cnt = atoi(line);
317 else
318 continue;
319 break;
320 default:
321 break;
322 }
323
324 conf_childs:
325 for (child = menu->list; child; child = child->next) {
326 if (!child->sym || !menu_is_visible(child))
327 continue;
328 if (!--cnt)
329 break;
330 }
331 if (!child)
332 continue;
333 if (line[0] && line[strlen(line) - 1] == '?') {
334 print_help(child);
335 continue;
336 }
337 sym_set_choice_value(sym, child->sym);
338 for (child = child->list; child; child = child->next) {
339 indent += 2;
340 conf(child);
341 indent -= 2;
342 }
343 return 1;
344 }
345}
346
347static void conf(struct menu *menu)
348{
349 struct symbol *sym;
350 struct property *prop;
351 struct menu *child;
352
353 if (!menu_is_visible(menu))
354 return;
355
356 sym = menu->sym;
357 prop = menu->prompt;
358 if (prop) {
359 const char *prompt;
360
361 switch (prop->type) {
362 case P_MENU:
363 /*
364 * Except in oldaskconfig mode, we show only menus that
365 * contain new symbols.
366 */
367 if (input_mode != oldaskconfig && rootEntry != menu) {
368 check_conf(menu);
369 return;
370 }
371 /* fall through */
372 case P_COMMENT:
373 prompt = menu_get_prompt(menu);
374 if (prompt)
375 printf("%*c\n%*c %s\n%*c\n",
376 indent, '*',
377 indent, '*', prompt,
378 indent, '*');
379 default:
380 ;
381 }
382 }
383
384 if (!sym)
385 goto conf_childs;
386
387 if (sym_is_choice(sym)) {
388 conf_choice(menu);
389 if (sym->curr.tri != mod)
390 return;
391 goto conf_childs;
392 }
393
394 switch (sym->type) {
395 case S_INT:
396 case S_HEX:
397 case S_STRING:
398 conf_string(menu);
399 break;
400 default:
401 conf_sym(menu);
402 break;
403 }
404
405conf_childs:
406 if (sym)
407 indent += 2;
408 for (child = menu->list; child; child = child->next)
409 conf(child);
410 if (sym)
411 indent -= 2;
412}
413
414static void check_conf(struct menu *menu)
415{
416 struct symbol *sym;
417 struct menu *child;
418
419 if (!menu_is_visible(menu))
420 return;
421
422 sym = menu->sym;
423 if (sym && !sym_has_value(sym)) {
424 if (sym_is_changeable(sym) ||
425 (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
426 if (input_mode == listnewconfig) {
427 if (sym->name) {
428 const char *str;
429
430 if (sym->type == S_STRING) {
431 str = sym_get_string_value(sym);
432 str = sym_escape_string_value(str);
433 printf("%s%s=%s\n", CONFIG_, sym->name, str);
434 free((void *)str);
435 } else {
436 str = sym_get_string_value(sym);
437 printf("%s%s=%s\n", CONFIG_, sym->name, str);
438 }
439 }
440 } else if (input_mode == helpnewconfig) {
441 printf("-----\n");
442 print_help(menu);
443 printf("-----\n");
444
445 } else {
446 if (!conf_cnt++)
447 printf("*\n* Restart config...\n*\n");
448 rootEntry = menu_get_parent_menu(menu);
449 conf(rootEntry);
450 }
451 }
452 }
453
454 for (child = menu->list; child; child = child->next)
455 check_conf(child);
456}
457
458static struct option long_opts[] = {
459 {"oldaskconfig", no_argument, NULL, oldaskconfig},
460 {"oldconfig", no_argument, NULL, oldconfig},
461 {"syncconfig", no_argument, NULL, syncconfig},
462 {"defconfig", required_argument, NULL, defconfig},
463 {"savedefconfig", required_argument, NULL, savedefconfig},
464 {"allnoconfig", no_argument, NULL, allnoconfig},
465 {"allyesconfig", no_argument, NULL, allyesconfig},
466 {"allmodconfig", no_argument, NULL, allmodconfig},
467 {"alldefconfig", no_argument, NULL, alldefconfig},
468 {"randconfig", no_argument, NULL, randconfig},
469 {"listnewconfig", no_argument, NULL, listnewconfig},
470 {"helpnewconfig", no_argument, NULL, helpnewconfig},
471 {"olddefconfig", no_argument, NULL, olddefconfig},
472 {"yes2modconfig", no_argument, NULL, yes2modconfig},
473 {"mod2yesconfig", no_argument, NULL, mod2yesconfig},
474 {NULL, 0, NULL, 0}
475};
476
477static void conf_usage(const char *progname)
478{
479
480 printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
481 printf("[option] is _one_ of the following:\n");
482 printf(" --listnewconfig List new options\n");
483 printf(" --helpnewconfig List new options and help text\n");
484 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
485 printf(" --oldconfig Update a configuration using a provided .config as base\n");
486 printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
487 " include/{generated/,config/}\n");
488 printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
489 printf(" --defconfig <file> New config with default defined in <file>\n");
490 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
491 printf(" --allnoconfig New config where all options are answered with no\n");
492 printf(" --allyesconfig New config where all options are answered with yes\n");
493 printf(" --allmodconfig New config where all options are answered with mod\n");
494 printf(" --alldefconfig New config with all symbols set to default\n");
495 printf(" --randconfig New config with random answer to all options\n");
496 printf(" --yes2modconfig Change answers from yes to mod if possible\n");
497 printf(" --mod2yesconfig Change answers from mod to yes if possible\n");
498}
499
500int main(int ac, char **av)
501{
502 const char *progname = av[0];
503 int opt;
504 const char *name, *defconfig_file = NULL /* gcc uninit */;
505 int no_conf_write = 0;
506
507 tty_stdio = isatty(0) && isatty(1);
508
509 while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
510 if (opt == 's') {
511 conf_set_message_callback(NULL);
512 continue;
513 }
514 input_mode = (enum input_mode)opt;
515 switch (opt) {
516 case syncconfig:
517 /*
518 * syncconfig is invoked during the build stage.
519 * Suppress distracting "configuration written to ..."
520 */
521 conf_set_message_callback(NULL);
522 sync_kconfig = 1;
523 break;
524 case defconfig:
525 case savedefconfig:
526 defconfig_file = optarg;
527 break;
528 case randconfig:
529 {
530 struct timeval now;
531 unsigned int seed;
532 char *seed_env;
533
534 /*
535 * Use microseconds derived seed,
536 * compensate for systems where it may be zero
537 */
538 gettimeofday(&now, NULL);
539 seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
540
541 seed_env = getenv("KCONFIG_SEED");
542 if( seed_env && *seed_env ) {
543 char *endp;
544 int tmp = (int)strtol(seed_env, &endp, 0);
545 if (*endp == '\0') {
546 seed = tmp;
547 }
548 }
549 fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
550 srand(seed);
551 break;
552 }
553 case oldaskconfig:
554 case oldconfig:
555 case allnoconfig:
556 case allyesconfig:
557 case allmodconfig:
558 case alldefconfig:
559 case listnewconfig:
560 case helpnewconfig:
561 case olddefconfig:
562 case yes2modconfig:
563 case mod2yesconfig:
564 break;
565 case '?':
566 conf_usage(progname);
567 exit(1);
568 break;
569 }
570 }
571 if (ac == optind) {
572 fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
573 conf_usage(progname);
574 exit(1);
575 }
576 name = av[optind];
577 conf_parse(name);
578 //zconfdump(stdout);
579
580 switch (input_mode) {
581 case defconfig:
582 if (conf_read(defconfig_file)) {
583 fprintf(stderr,
584 "***\n"
585 "*** Can't find default configuration \"%s\"!\n"
586 "***\n",
587 defconfig_file);
588 exit(1);
589 }
590 break;
591 case savedefconfig:
592 case syncconfig:
593 case oldaskconfig:
594 case oldconfig:
595 case listnewconfig:
596 case helpnewconfig:
597 case olddefconfig:
598 case yes2modconfig:
599 case mod2yesconfig:
600 conf_read(NULL);
601 break;
602 case allnoconfig:
603 case allyesconfig:
604 case allmodconfig:
605 case alldefconfig:
606 case randconfig:
607 name = getenv("KCONFIG_ALLCONFIG");
608 if (!name)
609 break;
610 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
611 if (conf_read_simple(name, S_DEF_USER)) {
612 fprintf(stderr,
613 "*** Can't read seed configuration \"%s\"!\n",
614 name);
615 exit(1);
616 }
617 break;
618 }
619 switch (input_mode) {
620 case allnoconfig: name = "allno.config"; break;
621 case allyesconfig: name = "allyes.config"; break;
622 case allmodconfig: name = "allmod.config"; break;
623 case alldefconfig: name = "alldef.config"; break;
624 case randconfig: name = "allrandom.config"; break;
625 default: break;
626 }
627 if (conf_read_simple(name, S_DEF_USER) &&
628 conf_read_simple("all.config", S_DEF_USER)) {
629 fprintf(stderr,
630 "*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n",
631 name);
632 exit(1);
633 }
634 break;
635 default:
636 break;
637 }
638
639 if (sync_kconfig) {
640 name = getenv("KCONFIG_NOSILENTUPDATE");
641 if (name && *name) {
642 if (conf_get_changed()) {
643 fprintf(stderr,
644 "\n*** The configuration requires explicit update.\n\n");
645 return 1;
646 }
647 no_conf_write = 1;
648 }
649 }
650
651 switch (input_mode) {
652 case allnoconfig:
653 conf_set_all_new_symbols(def_no);
654 break;
655 case allyesconfig:
656 conf_set_all_new_symbols(def_yes);
657 break;
658 case allmodconfig:
659 conf_set_all_new_symbols(def_mod);
660 break;
661 case alldefconfig:
662 conf_set_all_new_symbols(def_default);
663 break;
664 case randconfig:
665 /* Really nothing to do in this loop */
666 while (conf_set_all_new_symbols(def_random)) ;
667 break;
668 case defconfig:
669 conf_set_all_new_symbols(def_default);
670 break;
671 case savedefconfig:
672 break;
673 case yes2modconfig:
674 conf_rewrite_mod_or_yes(def_y2m);
675 break;
676 case mod2yesconfig:
677 conf_rewrite_mod_or_yes(def_m2y);
678 break;
679 case oldaskconfig:
680 rootEntry = &rootmenu;
681 conf(&rootmenu);
682 input_mode = oldconfig;
683 /* fall through */
684 case oldconfig:
685 case listnewconfig:
686 case helpnewconfig:
687 case syncconfig:
688 /* Update until a loop caused no more changes */
689 do {
690 conf_cnt = 0;
691 check_conf(&rootmenu);
692 } while (conf_cnt);
693 break;
694 case olddefconfig:
695 default:
696 break;
697 }
698
699 if (input_mode == savedefconfig) {
700 if (conf_write_defconfig(defconfig_file)) {
701 fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
702 defconfig_file);
703 return 1;
704 }
705 } else if (input_mode != listnewconfig && input_mode != helpnewconfig) {
706 if (!no_conf_write && conf_write(NULL)) {
707 fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
708 exit(1);
709 }
710
711 /*
712 * Create auto.conf if it does not exist.
713 * This prevents GNU Make 4.1 or older from emitting
714 * "include/config/auto.conf: No such file or directory"
715 * in the top-level Makefile
716 *
717 * syncconfig always creates or updates auto.conf because it is
718 * used during the build.
719 */
720 if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
721 fprintf(stderr,
722 "\n*** Error during sync of the configuration.\n\n");
723 return 1;
724 }
725 }
726 return 0;
727}
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 "internal.h"
18#include "lkc.h"
19
20static void conf(struct menu *menu);
21static void check_conf(struct menu *menu);
22
23enum input_mode {
24 oldaskconfig,
25 syncconfig,
26 oldconfig,
27 allnoconfig,
28 allyesconfig,
29 allmodconfig,
30 alldefconfig,
31 randconfig,
32 defconfig,
33 savedefconfig,
34 listnewconfig,
35 helpnewconfig,
36 olddefconfig,
37 yes2modconfig,
38 mod2yesconfig,
39 mod2noconfig,
40};
41static enum input_mode input_mode = oldaskconfig;
42static int input_mode_opt;
43static int indent = 1;
44static int tty_stdio;
45static int sync_kconfig;
46static int conf_cnt;
47static char line[PATH_MAX];
48static struct menu *rootEntry;
49
50static void print_help(struct menu *menu)
51{
52 struct gstr help = str_new();
53
54 menu_get_ext_help(menu, &help);
55
56 printf("\n%s\n", str_get(&help));
57 str_free(&help);
58}
59
60static void strip(char *str)
61{
62 char *p = str;
63 int l;
64
65 while ((isspace(*p)))
66 p++;
67 l = strlen(p);
68 if (p != str)
69 memmove(str, p, l + 1);
70 if (!l)
71 return;
72 p = str + l - 1;
73 while ((isspace(*p)))
74 *p-- = 0;
75}
76
77/* Helper function to facilitate fgets() by Jean Sacren. */
78static void xfgets(char *str, int size, FILE *in)
79{
80 if (!fgets(str, size, in))
81 fprintf(stderr, "\nError in reading or end of file.\n");
82
83 if (!tty_stdio)
84 printf("%s", str);
85}
86
87static void set_randconfig_seed(void)
88{
89 unsigned int seed;
90 char *env;
91 bool seed_set = false;
92
93 env = getenv("KCONFIG_SEED");
94 if (env && *env) {
95 char *endp;
96
97 seed = strtol(env, &endp, 0);
98 if (*endp == '\0')
99 seed_set = true;
100 }
101
102 if (!seed_set) {
103 struct timeval now;
104
105 /*
106 * Use microseconds derived seed, compensate for systems where it may
107 * be zero.
108 */
109 gettimeofday(&now, NULL);
110 seed = (now.tv_sec + 1) * (now.tv_usec + 1);
111 }
112
113 printf("KCONFIG_SEED=0x%X\n", seed);
114 srand(seed);
115}
116
117/**
118 * randomize_choice_values - randomize choice block
119 *
120 * @choice: menu entry for the choice
121 */
122static void randomize_choice_values(struct menu *choice)
123{
124 struct menu *menu;
125 int x;
126 int cnt = 0;
127
128 /*
129 * First, count the number of symbols to randomize. If sym_has_value()
130 * is true, it was specified by KCONFIG_ALLCONFIG. It needs to be
131 * respected.
132 */
133 menu_for_each_sub_entry(menu, choice) {
134 struct symbol *sym = menu->sym;
135
136 if (sym && !sym_has_value(sym))
137 cnt++;
138 }
139
140 while (cnt > 0) {
141 x = rand() % cnt;
142
143 menu_for_each_sub_entry(menu, choice) {
144 struct symbol *sym = menu->sym;
145
146 if (sym && !sym_has_value(sym))
147 x--;
148
149 if (x < 0) {
150 sym->def[S_DEF_USER].tri = yes;
151 sym->flags |= SYMBOL_DEF_USER;
152 /*
153 * Move the selected item to the _tail_ because
154 * this needs to have a lower priority than the
155 * user input from KCONFIG_ALLCONFIG.
156 */
157 list_move_tail(&sym->choice_link,
158 &choice->choice_members);
159
160 break;
161 }
162 }
163 cnt--;
164 }
165}
166
167enum conf_def_mode {
168 def_default,
169 def_yes,
170 def_mod,
171 def_no,
172 def_random
173};
174
175static void conf_set_all_new_symbols(enum conf_def_mode mode)
176{
177 struct menu *menu;
178 int cnt;
179 /*
180 * can't go as the default in switch-case below, otherwise gcc whines
181 * about -Wmaybe-uninitialized
182 */
183 int pby = 50; /* probability of bool = y */
184 int pty = 33; /* probability of tristate = y */
185 int ptm = 33; /* probability of tristate = m */
186
187 if (mode == def_random) {
188 int n, p[3];
189 char *env = getenv("KCONFIG_PROBABILITY");
190
191 n = 0;
192 while (env && *env) {
193 char *endp;
194 int tmp = strtol(env, &endp, 10);
195
196 if (tmp >= 0 && tmp <= 100) {
197 p[n++] = tmp;
198 } else {
199 errno = ERANGE;
200 perror("KCONFIG_PROBABILITY");
201 exit(1);
202 }
203 env = (*endp == ':') ? endp + 1 : endp;
204 if (n >= 3)
205 break;
206 }
207 switch (n) {
208 case 1:
209 pby = p[0];
210 ptm = pby / 2;
211 pty = pby - ptm;
212 break;
213 case 2:
214 pty = p[0];
215 ptm = p[1];
216 pby = pty + ptm;
217 break;
218 case 3:
219 pby = p[0];
220 pty = p[1];
221 ptm = p[2];
222 break;
223 }
224
225 if (pty + ptm > 100) {
226 errno = ERANGE;
227 perror("KCONFIG_PROBABILITY");
228 exit(1);
229 }
230 }
231
232 menu_for_each_entry(menu) {
233 struct symbol *sym = menu->sym;
234 tristate val;
235
236 if (!sym || !menu->prompt || sym_has_value(sym) ||
237 (sym->type != S_BOOLEAN && sym->type != S_TRISTATE) ||
238 sym_is_choice_value(sym))
239 continue;
240
241 if (sym_is_choice(sym)) {
242 if (mode == def_random)
243 randomize_choice_values(menu);
244 continue;
245 }
246
247 switch (mode) {
248 case def_yes:
249 val = yes;
250 break;
251 case def_mod:
252 val = mod;
253 break;
254 case def_no:
255 val = no;
256 break;
257 case def_random:
258 val = no;
259 cnt = rand() % 100;
260 if (sym->type == S_TRISTATE) {
261 if (cnt < pty)
262 val = yes;
263 else if (cnt < pty + ptm)
264 val = mod;
265 } else if (cnt < pby) {
266 val = yes;
267 }
268 break;
269 default:
270 continue;
271 }
272 sym->def[S_DEF_USER].tri = val;
273 sym->flags |= SYMBOL_DEF_USER;
274 }
275
276 sym_clear_all_valid();
277}
278
279static void conf_rewrite_tristates(tristate old_val, tristate new_val)
280{
281 struct symbol *sym;
282
283 for_all_symbols(sym) {
284 if (sym_get_type(sym) == S_TRISTATE &&
285 sym->def[S_DEF_USER].tri == old_val)
286 sym->def[S_DEF_USER].tri = new_val;
287 }
288 sym_clear_all_valid();
289}
290
291static int conf_askvalue(struct symbol *sym, const char *def)
292{
293 if (!sym_has_value(sym))
294 printf("(NEW) ");
295
296 line[0] = '\n';
297 line[1] = 0;
298
299 if (!sym_is_changeable(sym)) {
300 printf("%s\n", def);
301 line[0] = '\n';
302 line[1] = 0;
303 return 0;
304 }
305
306 switch (input_mode) {
307 case oldconfig:
308 case syncconfig:
309 if (sym_has_value(sym)) {
310 printf("%s\n", def);
311 return 0;
312 }
313 /* fall through */
314 default:
315 fflush(stdout);
316 xfgets(line, sizeof(line), stdin);
317 break;
318 }
319
320 return 1;
321}
322
323static int conf_string(struct menu *menu)
324{
325 struct symbol *sym = menu->sym;
326 const char *def;
327
328 while (1) {
329 printf("%*s%s ", indent - 1, "", menu->prompt->text);
330 printf("(%s) ", sym->name);
331 def = sym_get_string_value(sym);
332 if (def)
333 printf("[%s] ", def);
334 if (!conf_askvalue(sym, def))
335 return 0;
336 switch (line[0]) {
337 case '\n':
338 break;
339 case '?':
340 /* print help */
341 if (line[1] == '\n') {
342 print_help(menu);
343 def = NULL;
344 break;
345 }
346 /* fall through */
347 default:
348 line[strlen(line)-1] = 0;
349 def = line;
350 }
351 if (def && sym_set_string_value(sym, def))
352 return 0;
353 }
354}
355
356static int conf_sym(struct menu *menu)
357{
358 struct symbol *sym = menu->sym;
359 tristate oldval, newval;
360
361 while (1) {
362 printf("%*s%s ", indent - 1, "", menu->prompt->text);
363 if (sym->name)
364 printf("(%s) ", sym->name);
365 putchar('[');
366 oldval = sym_get_tristate_value(sym);
367 switch (oldval) {
368 case no:
369 putchar('N');
370 break;
371 case mod:
372 putchar('M');
373 break;
374 case yes:
375 putchar('Y');
376 break;
377 }
378 if (oldval != no && sym_tristate_within_range(sym, no))
379 printf("/n");
380 if (oldval != mod && sym_tristate_within_range(sym, mod))
381 printf("/m");
382 if (oldval != yes && sym_tristate_within_range(sym, yes))
383 printf("/y");
384 printf("/?] ");
385 if (!conf_askvalue(sym, sym_get_string_value(sym)))
386 return 0;
387 strip(line);
388
389 switch (line[0]) {
390 case 'n':
391 case 'N':
392 newval = no;
393 if (!line[1] || !strcmp(&line[1], "o"))
394 break;
395 continue;
396 case 'm':
397 case 'M':
398 newval = mod;
399 if (!line[1])
400 break;
401 continue;
402 case 'y':
403 case 'Y':
404 newval = yes;
405 if (!line[1] || !strcmp(&line[1], "es"))
406 break;
407 continue;
408 case 0:
409 newval = oldval;
410 break;
411 case '?':
412 goto help;
413 default:
414 continue;
415 }
416 if (sym_set_tristate_value(sym, newval))
417 return 0;
418help:
419 print_help(menu);
420 }
421}
422
423static void conf_choice(struct menu *menu)
424{
425 struct symbol *def_sym;
426 struct menu *child;
427 bool is_new = false;
428
429 while (1) {
430 int cnt, def;
431
432 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
433 def_sym = sym_calc_choice(menu);
434 cnt = def = 0;
435 line[0] = 0;
436 for (child = menu->list; child; child = child->next) {
437 if (!menu_is_visible(child))
438 continue;
439 if (!child->sym) {
440 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
441 continue;
442 }
443 cnt++;
444 if (child->sym == def_sym) {
445 def = cnt;
446 printf("%*c", indent, '>');
447 } else
448 printf("%*c", indent, ' ');
449 printf(" %d. %s (%s)", cnt, menu_get_prompt(child),
450 child->sym->name);
451 if (!sym_has_value(child->sym)) {
452 is_new = true;
453 printf(" (NEW)");
454 }
455 printf("\n");
456 }
457 printf("%*schoice", indent - 1, "");
458 if (cnt == 1) {
459 printf("[1]: 1\n");
460 goto conf_childs;
461 }
462 printf("[1-%d?]: ", cnt);
463 switch (input_mode) {
464 case oldconfig:
465 case syncconfig:
466 if (!is_new) {
467 cnt = def;
468 printf("%d\n", cnt);
469 break;
470 }
471 /* fall through */
472 case oldaskconfig:
473 fflush(stdout);
474 xfgets(line, sizeof(line), stdin);
475 strip(line);
476 if (line[0] == '?') {
477 print_help(menu);
478 continue;
479 }
480 if (!line[0])
481 cnt = def;
482 else if (isdigit(line[0]))
483 cnt = atoi(line);
484 else
485 continue;
486 break;
487 default:
488 break;
489 }
490
491 conf_childs:
492 for (child = menu->list; child; child = child->next) {
493 if (!child->sym || !menu_is_visible(child))
494 continue;
495 if (!--cnt)
496 break;
497 }
498 if (!child)
499 continue;
500 if (line[0] && line[strlen(line) - 1] == '?') {
501 print_help(child);
502 continue;
503 }
504 choice_set_value(menu, child->sym);
505 return;
506 }
507}
508
509static void conf(struct menu *menu)
510{
511 struct symbol *sym;
512 struct property *prop;
513 struct menu *child;
514
515 if (!menu_is_visible(menu))
516 return;
517
518 sym = menu->sym;
519 prop = menu->prompt;
520 if (prop) {
521 const char *prompt;
522
523 switch (prop->type) {
524 case P_MENU:
525 /*
526 * Except in oldaskconfig mode, we show only menus that
527 * contain new symbols.
528 */
529 if (input_mode != oldaskconfig && rootEntry != menu) {
530 check_conf(menu);
531 return;
532 }
533 /* fall through */
534 case P_COMMENT:
535 prompt = menu_get_prompt(menu);
536 if (prompt)
537 printf("%*c\n%*c %s\n%*c\n",
538 indent, '*',
539 indent, '*', prompt,
540 indent, '*');
541 default:
542 ;
543 }
544 }
545
546 if (!sym)
547 goto conf_childs;
548
549 if (sym_is_choice(sym)) {
550 conf_choice(menu);
551 return;
552 }
553
554 switch (sym->type) {
555 case S_INT:
556 case S_HEX:
557 case S_STRING:
558 conf_string(menu);
559 break;
560 default:
561 conf_sym(menu);
562 break;
563 }
564
565conf_childs:
566 if (sym)
567 indent += 2;
568 for (child = menu->list; child; child = child->next)
569 conf(child);
570 if (sym)
571 indent -= 2;
572}
573
574static void check_conf(struct menu *menu)
575{
576 struct symbol *sym;
577 struct menu *child;
578
579 if (!menu_is_visible(menu))
580 return;
581
582 sym = menu->sym;
583 if (sym && !sym_has_value(sym) && sym_is_changeable(sym)) {
584 switch (input_mode) {
585 case listnewconfig:
586 if (sym->name)
587 print_symbol_for_listconfig(sym);
588 break;
589 case helpnewconfig:
590 printf("-----\n");
591 print_help(menu);
592 printf("-----\n");
593 break;
594 default:
595 if (!conf_cnt++)
596 printf("*\n* Restart config...\n*\n");
597 rootEntry = menu_get_parent_menu(menu);
598 conf(rootEntry);
599 break;
600 }
601 }
602
603 for (child = menu->list; child; child = child->next)
604 check_conf(child);
605}
606
607static const struct option long_opts[] = {
608 {"help", no_argument, NULL, 'h'},
609 {"silent", no_argument, NULL, 's'},
610 {"oldaskconfig", no_argument, &input_mode_opt, oldaskconfig},
611 {"oldconfig", no_argument, &input_mode_opt, oldconfig},
612 {"syncconfig", no_argument, &input_mode_opt, syncconfig},
613 {"defconfig", required_argument, &input_mode_opt, defconfig},
614 {"savedefconfig", required_argument, &input_mode_opt, savedefconfig},
615 {"allnoconfig", no_argument, &input_mode_opt, allnoconfig},
616 {"allyesconfig", no_argument, &input_mode_opt, allyesconfig},
617 {"allmodconfig", no_argument, &input_mode_opt, allmodconfig},
618 {"alldefconfig", no_argument, &input_mode_opt, alldefconfig},
619 {"randconfig", no_argument, &input_mode_opt, randconfig},
620 {"listnewconfig", no_argument, &input_mode_opt, listnewconfig},
621 {"helpnewconfig", no_argument, &input_mode_opt, helpnewconfig},
622 {"olddefconfig", no_argument, &input_mode_opt, olddefconfig},
623 {"yes2modconfig", no_argument, &input_mode_opt, yes2modconfig},
624 {"mod2yesconfig", no_argument, &input_mode_opt, mod2yesconfig},
625 {"mod2noconfig", no_argument, &input_mode_opt, mod2noconfig},
626 {NULL, 0, NULL, 0}
627};
628
629static void conf_usage(const char *progname)
630{
631 printf("Usage: %s [options] kconfig_file\n", progname);
632 printf("\n");
633 printf("Generic options:\n");
634 printf(" -h, --help Print this message and exit.\n");
635 printf(" -s, --silent Do not print log.\n");
636 printf("\n");
637 printf("Mode options:\n");
638 printf(" --listnewconfig List new options\n");
639 printf(" --helpnewconfig List new options and help text\n");
640 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
641 printf(" --oldconfig Update a configuration using a provided .config as base\n");
642 printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
643 " include/{generated/,config/}\n");
644 printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
645 printf(" --defconfig <file> New config with default defined in <file>\n");
646 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
647 printf(" --allnoconfig New config where all options are answered with no\n");
648 printf(" --allyesconfig New config where all options are answered with yes\n");
649 printf(" --allmodconfig New config where all options are answered with mod\n");
650 printf(" --alldefconfig New config with all symbols set to default\n");
651 printf(" --randconfig New config with random answer to all options\n");
652 printf(" --yes2modconfig Change answers from yes to mod if possible\n");
653 printf(" --mod2yesconfig Change answers from mod to yes if possible\n");
654 printf(" --mod2noconfig Change answers from mod to no if possible\n");
655 printf(" (If none of the above is given, --oldaskconfig is the default)\n");
656 printf("\n");
657 printf("Arguments:\n");
658 printf(" kconfig_file Top-level Kconfig file.\n");
659}
660
661int main(int ac, char **av)
662{
663 const char *progname = av[0];
664 int opt;
665 const char *name, *defconfig_file = NULL /* gcc uninit */;
666 int no_conf_write = 0;
667
668 tty_stdio = isatty(0) && isatty(1);
669
670 while ((opt = getopt_long(ac, av, "hs", long_opts, NULL)) != -1) {
671 switch (opt) {
672 case 'h':
673 conf_usage(progname);
674 exit(1);
675 break;
676 case 's':
677 conf_set_message_callback(NULL);
678 break;
679 case 0:
680 input_mode = input_mode_opt;
681 switch (input_mode) {
682 case syncconfig:
683 /*
684 * syncconfig is invoked during the build stage.
685 * Suppress distracting
686 * "configuration written to ..."
687 */
688 conf_set_message_callback(NULL);
689 sync_kconfig = 1;
690 break;
691 case defconfig:
692 case savedefconfig:
693 defconfig_file = optarg;
694 break;
695 case randconfig:
696 set_randconfig_seed();
697 break;
698 default:
699 break;
700 }
701 default:
702 break;
703 }
704 }
705 if (ac == optind) {
706 fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
707 conf_usage(progname);
708 exit(1);
709 }
710 conf_parse(av[optind]);
711 //zconfdump(stdout);
712
713 switch (input_mode) {
714 case defconfig:
715 if (conf_read(defconfig_file)) {
716 fprintf(stderr,
717 "***\n"
718 "*** Can't find default configuration \"%s\"!\n"
719 "***\n",
720 defconfig_file);
721 exit(1);
722 }
723 break;
724 case savedefconfig:
725 case syncconfig:
726 case oldaskconfig:
727 case oldconfig:
728 case listnewconfig:
729 case helpnewconfig:
730 case olddefconfig:
731 case yes2modconfig:
732 case mod2yesconfig:
733 case mod2noconfig:
734 conf_read(NULL);
735 break;
736 case allnoconfig:
737 case allyesconfig:
738 case allmodconfig:
739 case alldefconfig:
740 case randconfig:
741 name = getenv("KCONFIG_ALLCONFIG");
742 if (!name)
743 break;
744 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
745 if (conf_read_simple(name, S_DEF_USER)) {
746 fprintf(stderr,
747 "*** Can't read seed configuration \"%s\"!\n",
748 name);
749 exit(1);
750 }
751 break;
752 }
753 switch (input_mode) {
754 case allnoconfig: name = "allno.config"; break;
755 case allyesconfig: name = "allyes.config"; break;
756 case allmodconfig: name = "allmod.config"; break;
757 case alldefconfig: name = "alldef.config"; break;
758 case randconfig: name = "allrandom.config"; break;
759 default: break;
760 }
761 if (conf_read_simple(name, S_DEF_USER) &&
762 conf_read_simple("all.config", S_DEF_USER)) {
763 fprintf(stderr,
764 "*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n",
765 name);
766 exit(1);
767 }
768 break;
769 default:
770 break;
771 }
772
773 if (conf_errors())
774 exit(1);
775
776 if (sync_kconfig) {
777 name = getenv("KCONFIG_NOSILENTUPDATE");
778 if (name && *name) {
779 if (conf_get_changed()) {
780 fprintf(stderr,
781 "\n*** The configuration requires explicit update.\n\n");
782 return 1;
783 }
784 no_conf_write = 1;
785 }
786 }
787
788 switch (input_mode) {
789 case allnoconfig:
790 conf_set_all_new_symbols(def_no);
791 break;
792 case allyesconfig:
793 conf_set_all_new_symbols(def_yes);
794 break;
795 case allmodconfig:
796 conf_set_all_new_symbols(def_mod);
797 break;
798 case alldefconfig:
799 conf_set_all_new_symbols(def_default);
800 break;
801 case randconfig:
802 conf_set_all_new_symbols(def_random);
803 break;
804 case defconfig:
805 conf_set_all_new_symbols(def_default);
806 break;
807 case savedefconfig:
808 break;
809 case yes2modconfig:
810 conf_rewrite_tristates(yes, mod);
811 break;
812 case mod2yesconfig:
813 conf_rewrite_tristates(mod, yes);
814 break;
815 case mod2noconfig:
816 conf_rewrite_tristates(mod, no);
817 break;
818 case oldaskconfig:
819 rootEntry = &rootmenu;
820 conf(&rootmenu);
821 input_mode = oldconfig;
822 /* fall through */
823 case oldconfig:
824 case listnewconfig:
825 case helpnewconfig:
826 case syncconfig:
827 /* Update until a loop caused no more changes */
828 do {
829 conf_cnt = 0;
830 check_conf(&rootmenu);
831 } while (conf_cnt);
832 break;
833 case olddefconfig:
834 default:
835 break;
836 }
837
838 if (sym_dep_errors())
839 exit(1);
840
841 if (input_mode == savedefconfig) {
842 if (conf_write_defconfig(defconfig_file)) {
843 fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
844 defconfig_file);
845 return 1;
846 }
847 } else if (input_mode != listnewconfig && input_mode != helpnewconfig) {
848 if (!no_conf_write && conf_write(NULL)) {
849 fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
850 exit(1);
851 }
852
853 /*
854 * Create auto.conf if it does not exist.
855 * This prevents GNU Make 4.1 or older from emitting
856 * "include/config/auto.conf: No such file or directory"
857 * in the top-level Makefile
858 *
859 * syncconfig always creates or updates auto.conf because it is
860 * used during the build.
861 */
862 if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
863 fprintf(stderr,
864 "\n*** Error during sync of the configuration.\n\n");
865 return 1;
866 }
867 }
868 return 0;
869}