1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
20 static void conf(struct menu *menu);
21 static void check_conf(struct menu *menu);
41 static enum input_mode input_mode = oldaskconfig;
42 static int input_mode_opt;
43 static int indent = 1;
45 static int sync_kconfig;
47 static char line[PATH_MAX];
48 static struct menu *rootEntry;
50 static void print_help(struct menu *menu)
52 struct gstr help = str_new();
54 menu_get_ext_help(menu, &help);
56 printf("\n%s\n", str_get(&help));
60 static void strip(char *str)
69 memmove(str, p, l + 1);
77 /* Helper function to facilitate fgets() by Jean Sacren. */
78 static void xfgets(char *str, int size, FILE *in)
80 if (!fgets(str, size, in))
81 fprintf(stderr, "\nError in reading or end of file.\n");
87 static void set_randconfig_seed(void)
91 bool seed_set = false;
93 env = getenv("KCONFIG_SEED");
97 seed = strtol(env, &endp, 0);
106 * Use microseconds derived seed, compensate for systems where it may
109 gettimeofday(&now, NULL);
110 seed = (now.tv_sec + 1) * (now.tv_usec + 1);
113 printf("KCONFIG_SEED=0x%X\n", seed);
117 static bool randomize_choice_values(struct symbol *csym)
119 struct property *prop;
125 * If choice is mod then we may have more items selected
126 * and if no then no-one.
127 * In both cases stop.
129 if (csym->curr.tri != yes)
132 prop = sym_get_choice_prop(csym);
134 /* count entries in choice block */
136 expr_list_for_each_sym(prop->expr, e, sym)
140 * find a random value and set it to yes,
141 * set the rest to no so we have only one set
146 expr_list_for_each_sym(prop->expr, e, sym) {
148 sym->def[S_DEF_USER].tri = yes;
149 csym->def[S_DEF_USER].val = sym;
151 sym->def[S_DEF_USER].tri = no;
153 sym->flags |= SYMBOL_DEF_USER;
154 /* clear VALID to get value calculated */
155 sym->flags &= ~SYMBOL_VALID;
157 csym->flags |= SYMBOL_DEF_USER;
158 /* clear VALID to get value calculated */
159 csym->flags &= ~SYMBOL_VALID;
172 static bool conf_set_all_new_symbols(enum conf_def_mode mode)
174 struct symbol *sym, *csym;
177 * can't go as the default in switch-case below, otherwise gcc whines
178 * about -Wmaybe-uninitialized
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;
185 if (mode == def_random) {
187 char *env = getenv("KCONFIG_PROBABILITY");
190 while (env && *env) {
192 int tmp = strtol(env, &endp, 10);
194 if (tmp >= 0 && tmp <= 100) {
198 perror("KCONFIG_PROBABILITY");
201 env = (*endp == ':') ? endp + 1 : endp;
223 if (pty + ptm > 100) {
225 perror("KCONFIG_PROBABILITY");
230 for_all_symbols(sym) {
231 if (sym_has_value(sym) || sym->flags & SYMBOL_VALID)
233 switch (sym_get_type(sym)) {
239 sym->def[S_DEF_USER].tri = yes;
242 sym->def[S_DEF_USER].tri = mod;
245 sym->def[S_DEF_USER].tri = no;
248 sym->def[S_DEF_USER].tri = no;
250 if (sym->type == S_TRISTATE) {
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;
261 if (!(sym_is_choice(sym) && mode == def_random))
262 sym->flags |= SYMBOL_DEF_USER;
270 sym_clear_all_valid();
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.
281 if (mode != def_random) {
282 for_all_symbols(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;
289 for_all_symbols(csym) {
290 if (sym_has_value(csym) || !sym_is_choice(csym))
293 sym_calc_value(csym);
294 if (mode == def_random)
295 has_changed |= randomize_choice_values(csym);
297 set_all_choice_values(csym);
305 static void conf_rewrite_tristates(tristate old_val, tristate new_val)
309 for_all_symbols(sym) {
310 if (sym_get_type(sym) == S_TRISTATE &&
311 sym->def[S_DEF_USER].tri == old_val)
312 sym->def[S_DEF_USER].tri = new_val;
314 sym_clear_all_valid();
317 static int conf_askvalue(struct symbol *sym, const char *def)
319 if (!sym_has_value(sym))
325 if (!sym_is_changeable(sym)) {
332 switch (input_mode) {
335 if (sym_has_value(sym)) {
342 xfgets(line, sizeof(line), stdin);
349 static int conf_string(struct menu *menu)
351 struct symbol *sym = menu->sym;
355 printf("%*s%s ", indent - 1, "", menu->prompt->text);
356 printf("(%s) ", sym->name);
357 def = sym_get_string_value(sym);
359 printf("[%s] ", def);
360 if (!conf_askvalue(sym, def))
367 if (line[1] == '\n') {
374 line[strlen(line)-1] = 0;
377 if (def && sym_set_string_value(sym, def))
382 static int conf_sym(struct menu *menu)
384 struct symbol *sym = menu->sym;
385 tristate oldval, newval;
388 printf("%*s%s ", indent - 1, "", menu->prompt->text);
390 printf("(%s) ", sym->name);
392 oldval = sym_get_tristate_value(sym);
404 if (oldval != no && sym_tristate_within_range(sym, no))
406 if (oldval != mod && sym_tristate_within_range(sym, mod))
408 if (oldval != yes && sym_tristate_within_range(sym, yes))
411 if (!conf_askvalue(sym, sym_get_string_value(sym)))
419 if (!line[1] || !strcmp(&line[1], "o"))
431 if (!line[1] || !strcmp(&line[1], "es"))
442 if (sym_set_tristate_value(sym, newval))
449 static int conf_choice(struct menu *menu)
451 struct symbol *sym, *def_sym;
456 is_new = !sym_has_value(sym);
457 if (sym_is_changeable(sym)) {
460 switch (sym_get_tristate_value(sym)) {
469 switch (sym_get_tristate_value(sym)) {
473 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
483 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
484 def_sym = sym_get_choice_value(sym);
487 for (child = menu->list; child; child = child->next) {
488 if (!menu_is_visible(child))
491 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
495 if (child->sym == def_sym) {
497 printf("%*c", indent, '>');
499 printf("%*c", indent, ' ');
500 printf(" %d. %s", cnt, menu_get_prompt(child));
501 if (child->sym->name)
502 printf(" (%s)", child->sym->name);
503 if (!sym_has_value(child->sym))
507 printf("%*schoice", indent - 1, "");
512 printf("[1-%d?]: ", cnt);
513 switch (input_mode) {
524 xfgets(line, sizeof(line), stdin);
526 if (line[0] == '?') {
532 else if (isdigit(line[0]))
542 for (child = menu->list; child; child = child->next) {
543 if (!child->sym || !menu_is_visible(child))
550 if (line[0] && line[strlen(line) - 1] == '?') {
554 sym_set_tristate_value(child->sym, yes);
555 for (child = child->list; child; child = child->next) {
564 static void conf(struct menu *menu)
567 struct property *prop;
570 if (!menu_is_visible(menu))
578 switch (prop->type) {
581 * Except in oldaskconfig mode, we show only menus that
582 * contain new symbols.
584 if (input_mode != oldaskconfig && rootEntry != menu) {
590 prompt = menu_get_prompt(menu);
592 printf("%*c\n%*c %s\n%*c\n",
604 if (sym_is_choice(sym)) {
606 if (sym->curr.tri != mod)
625 for (child = menu->list; child; child = child->next)
631 static void check_conf(struct menu *menu)
636 if (!menu_is_visible(menu))
640 if (sym && !sym_has_value(sym) &&
641 (sym_is_changeable(sym) ||
642 (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes))) {
644 switch (input_mode) {
647 print_symbol_for_listconfig(sym);
656 printf("*\n* Restart config...\n*\n");
657 rootEntry = menu_get_parent_menu(menu);
663 for (child = menu->list; child; child = child->next)
667 static const struct option long_opts[] = {
668 {"help", no_argument, NULL, 'h'},
669 {"silent", no_argument, NULL, 's'},
670 {"oldaskconfig", no_argument, &input_mode_opt, oldaskconfig},
671 {"oldconfig", no_argument, &input_mode_opt, oldconfig},
672 {"syncconfig", no_argument, &input_mode_opt, syncconfig},
673 {"defconfig", required_argument, &input_mode_opt, defconfig},
674 {"savedefconfig", required_argument, &input_mode_opt, savedefconfig},
675 {"allnoconfig", no_argument, &input_mode_opt, allnoconfig},
676 {"allyesconfig", no_argument, &input_mode_opt, allyesconfig},
677 {"allmodconfig", no_argument, &input_mode_opt, allmodconfig},
678 {"alldefconfig", no_argument, &input_mode_opt, alldefconfig},
679 {"randconfig", no_argument, &input_mode_opt, randconfig},
680 {"listnewconfig", no_argument, &input_mode_opt, listnewconfig},
681 {"helpnewconfig", no_argument, &input_mode_opt, helpnewconfig},
682 {"olddefconfig", no_argument, &input_mode_opt, olddefconfig},
683 {"yes2modconfig", no_argument, &input_mode_opt, yes2modconfig},
684 {"mod2yesconfig", no_argument, &input_mode_opt, mod2yesconfig},
685 {"mod2noconfig", no_argument, &input_mode_opt, mod2noconfig},
689 static void conf_usage(const char *progname)
691 printf("Usage: %s [options] <kconfig-file>\n", progname);
693 printf("Generic options:\n");
694 printf(" -h, --help Print this message and exit.\n");
695 printf(" -s, --silent Do not print log.\n");
697 printf("Mode options:\n");
698 printf(" --listnewconfig List new options\n");
699 printf(" --helpnewconfig List new options and help text\n");
700 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
701 printf(" --oldconfig Update a configuration using a provided .config as base\n");
702 printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
703 " include/{generated/,config/}\n");
704 printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
705 printf(" --defconfig <file> New config with default defined in <file>\n");
706 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
707 printf(" --allnoconfig New config where all options are answered with no\n");
708 printf(" --allyesconfig New config where all options are answered with yes\n");
709 printf(" --allmodconfig New config where all options are answered with mod\n");
710 printf(" --alldefconfig New config with all symbols set to default\n");
711 printf(" --randconfig New config with random answer to all options\n");
712 printf(" --yes2modconfig Change answers from yes to mod if possible\n");
713 printf(" --mod2yesconfig Change answers from mod to yes if possible\n");
714 printf(" --mod2noconfig Change answers from mod to no if possible\n");
715 printf(" (If none of the above is given, --oldaskconfig is the default)\n");
718 int main(int ac, char **av)
720 const char *progname = av[0];
722 const char *name, *defconfig_file = NULL /* gcc uninit */;
723 int no_conf_write = 0;
725 tty_stdio = isatty(0) && isatty(1);
727 while ((opt = getopt_long(ac, av, "hs", long_opts, NULL)) != -1) {
730 conf_usage(progname);
734 conf_set_message_callback(NULL);
737 input_mode = input_mode_opt;
738 switch (input_mode) {
741 * syncconfig is invoked during the build stage.
742 * Suppress distracting
743 * "configuration written to ..."
745 conf_set_message_callback(NULL);
750 defconfig_file = optarg;
753 set_randconfig_seed();
763 fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
764 conf_usage(progname);
767 conf_parse(av[optind]);
770 switch (input_mode) {
772 if (conf_read(defconfig_file)) {
775 "*** Can't find default configuration \"%s\"!\n"
798 name = getenv("KCONFIG_ALLCONFIG");
801 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
802 if (conf_read_simple(name, S_DEF_USER)) {
804 "*** Can't read seed configuration \"%s\"!\n",
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;
818 if (conf_read_simple(name, S_DEF_USER) &&
819 conf_read_simple("all.config", S_DEF_USER)) {
821 "*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n",
834 name = getenv("KCONFIG_NOSILENTUPDATE");
836 if (conf_get_changed()) {
838 "\n*** The configuration requires explicit update.\n\n");
845 switch (input_mode) {
847 conf_set_all_new_symbols(def_no);
850 conf_set_all_new_symbols(def_yes);
853 conf_set_all_new_symbols(def_mod);
856 conf_set_all_new_symbols(def_default);
859 /* Really nothing to do in this loop */
860 while (conf_set_all_new_symbols(def_random)) ;
863 conf_set_all_new_symbols(def_default);
868 conf_rewrite_tristates(yes, mod);
871 conf_rewrite_tristates(mod, yes);
874 conf_rewrite_tristates(mod, no);
877 rootEntry = &rootmenu;
879 input_mode = oldconfig;
885 /* Update until a loop caused no more changes */
888 check_conf(&rootmenu);
896 if (sym_dep_errors())
899 if (input_mode == savedefconfig) {
900 if (conf_write_defconfig(defconfig_file)) {
901 fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
905 } else if (input_mode != listnewconfig && input_mode != helpnewconfig) {
906 if (!no_conf_write && conf_write(NULL)) {
907 fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
912 * Create auto.conf if it does not exist.
913 * This prevents GNU Make 4.1 or older from emitting
914 * "include/config/auto.conf: No such file or directory"
915 * in the top-level Makefile
917 * syncconfig always creates or updates auto.conf because it is
918 * used during the build.
920 if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
922 "\n*** Error during sync of the configuration.\n\n");