1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
21 /* return true if 'path' exists, false otherwise */
22 static bool is_present(const char *path)
26 return !stat(path, &st);
29 /* return true if 'path' exists and it is a directory, false otherwise */
30 static bool is_dir(const char *path)
37 return S_ISDIR(st.st_mode);
40 /* return true if the given two files are the same, false otherwise */
41 static bool is_same(const char *file1, const char *file2)
48 fd1 = open(file1, O_RDONLY);
52 fd2 = open(file2, O_RDONLY);
56 ret = fstat(fd1, &st1);
59 ret = fstat(fd2, &st2);
63 if (st1.st_size != st2.st_size)
66 map1 = mmap(NULL, st1.st_size, PROT_READ, MAP_PRIVATE, fd1, 0);
67 if (map1 == MAP_FAILED)
70 map2 = mmap(NULL, st2.st_size, PROT_READ, MAP_PRIVATE, fd2, 0);
71 if (map2 == MAP_FAILED)
74 if (bcmp(map1, map2, st1.st_size))
87 * Create the parent directory of the given path.
89 * For example, if 'include/config/auto.conf' is given, create 'include/config'.
91 static int make_parent_dir(const char *path)
93 char tmp[PATH_MAX + 1];
96 strncpy(tmp, path, sizeof(tmp));
97 tmp[sizeof(tmp) - 1] = 0;
99 /* Remove the base name. Just return if nothing is left */
100 p = strrchr(tmp, '/');
105 /* Just in case it is an absolute path */
110 while ((p = strchr(p, '/'))) {
113 /* skip if the directory exists */
114 if (!is_dir(tmp) && mkdir(tmp, 0755))
125 static char depfile_path[PATH_MAX];
126 static size_t depfile_prefix_len;
128 /* touch depfile for symbol 'name' */
129 static int conf_touch_dep(const char *name)
135 /* check overflow: prefix + name + ".h" + '\0' must fit in buffer. */
136 if (depfile_prefix_len + strlen(name) + 3 > sizeof(depfile_path))
139 d = depfile_path + depfile_prefix_len;
143 *d++ = (c == '_') ? '/' : tolower(c);
146 /* Assume directory path already exists. */
147 fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
152 ret = make_parent_dir(depfile_path);
157 fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
166 struct conf_printer {
167 void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
168 void (*print_comment)(FILE *, const char *, void *);
171 static void conf_warning(const char *fmt, ...)
172 __attribute__ ((format (printf, 1, 2)));
174 static void conf_message(const char *fmt, ...)
175 __attribute__ ((format (printf, 1, 2)));
177 static const char *conf_filename;
178 static int conf_lineno, conf_warnings;
180 static void conf_warning(const char *fmt, ...)
184 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
185 vfprintf(stderr, fmt, ap);
186 fprintf(stderr, "\n");
191 static void conf_default_message_callback(const char *s)
198 static void (*conf_message_callback)(const char *s) =
199 conf_default_message_callback;
200 void conf_set_message_callback(void (*fn)(const char *s))
202 conf_message_callback = fn;
205 static void conf_message(const char *fmt, ...)
210 if (!conf_message_callback)
215 vsnprintf(buf, sizeof(buf), fmt, ap);
216 conf_message_callback(buf);
220 const char *conf_get_configname(void)
222 char *name = getenv("KCONFIG_CONFIG");
224 return name ? name : ".config";
227 static const char *conf_get_autoconfig_name(void)
229 char *name = getenv("KCONFIG_AUTOCONFIG");
231 return name ? name : "include/config/auto.conf";
234 static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
241 sym->def[def].tri = mod;
242 sym->flags |= def_flags;
248 sym->def[def].tri = yes;
249 sym->flags |= def_flags;
253 sym->def[def].tri = no;
254 sym->flags |= def_flags;
257 if (def != S_DEF_AUTO)
258 conf_warning("symbol value '%s' invalid for %s",
264 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
269 memmove(p2, p2 + 1, strlen(p2));
272 if (def != S_DEF_AUTO)
273 conf_warning("invalid string found");
279 if (sym_string_valid(sym, p)) {
280 sym->def[def].val = xstrdup(p);
281 sym->flags |= def_flags;
283 if (def != S_DEF_AUTO)
284 conf_warning("symbol value '%s' invalid for %s",
295 #define LINE_GROWTH 16
296 static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
299 size_t new_size = slen + 1;
301 new_size += LINE_GROWTH - 1;
303 nline = xrealloc(*lineptr, new_size);
311 (*lineptr)[slen] = c;
316 static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
318 char *line = *lineptr;
322 int c = getc(stream);
326 if (add_byte(c, &line, slen, n) < 0)
331 if (add_byte('\0', &line, slen, n) < 0)
338 if (add_byte(c, &line, slen, n) < 0)
350 int conf_read_simple(const char *name, int def)
354 size_t line_asize = 0;
360 in = zconf_fopen(name);
362 struct property *prop;
364 name = conf_get_configname();
365 in = zconf_fopen(name);
368 sym_add_change_count(1);
369 if (!sym_defconfig_list)
372 for_all_defaults(sym_defconfig_list, prop) {
373 if (expr_calc_value(prop->visible.expr) == no ||
374 prop->expr->type != E_SYMBOL)
376 sym_calc_value(prop->expr->left.sym);
377 name = sym_get_string_value(prop->expr->left.sym);
378 in = zconf_fopen(name);
380 conf_message("using defaults found in %s",
390 conf_filename = name;
394 def_flags = SYMBOL_DEF << def;
395 for_all_symbols(i, sym) {
396 sym->flags |= SYMBOL_CHANGED;
397 sym->flags &= ~(def_flags|SYMBOL_VALID);
398 if (sym_is_choice(sym))
399 sym->flags |= def_flags;
404 if (sym->def[def].val)
405 free(sym->def[def].val);
408 sym->def[def].val = NULL;
409 sym->def[def].tri = no;
413 while (compat_getline(&line, &line_asize, in) != -1) {
416 if (line[0] == '#') {
417 if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
419 p = strchr(line + 2 + strlen(CONFIG_), ' ');
423 if (strncmp(p, "is not set", 10))
425 if (def == S_DEF_USER) {
426 sym = sym_find(line + 2 + strlen(CONFIG_));
428 sym_add_change_count(1);
432 sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
433 if (sym->type == S_UNKNOWN)
434 sym->type = S_BOOLEAN;
436 if (sym->flags & def_flags) {
437 conf_warning("override: reassigning to symbol %s", sym->name);
442 sym->def[def].tri = no;
443 sym->flags |= def_flags;
448 } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
449 p = strchr(line + strlen(CONFIG_), '=');
453 p2 = strchr(p, '\n');
460 sym = sym_find(line + strlen(CONFIG_));
462 if (def == S_DEF_AUTO)
464 * Reading from include/config/auto.conf
465 * If CONFIG_FOO previously existed in
466 * auto.conf but it is missing now,
467 * include/config/foo.h must be touched.
469 conf_touch_dep(line + strlen(CONFIG_));
471 sym_add_change_count(1);
475 if (sym->flags & def_flags) {
476 conf_warning("override: reassigning to symbol %s", sym->name);
478 if (conf_set_sym_val(sym, def, def_flags, p))
481 if (line[0] != '\r' && line[0] != '\n')
482 conf_warning("unexpected data: %.*s",
483 (int)strcspn(line, "\r\n"), line);
488 if (sym && sym_is_choice_value(sym)) {
489 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
490 switch (sym->def[def].tri) {
494 if (cs->def[def].tri == yes) {
495 conf_warning("%s creates inconsistent choice state", sym->name);
496 cs->flags &= ~def_flags;
500 if (cs->def[def].tri != no)
501 conf_warning("override: %s changes choice state", sym->name);
502 cs->def[def].val = sym;
505 cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
513 int conf_read(const char *name)
516 int conf_unsaved = 0;
519 sym_set_change_count(0);
521 if (conf_read_simple(name, S_DEF_USER)) {
522 sym_calc_value(modules_sym);
526 sym_calc_value(modules_sym);
528 for_all_symbols(i, sym) {
530 if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE))
532 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
533 /* check that calculated value agrees with saved value */
537 if (sym->def[S_DEF_USER].tri == sym_get_tristate_value(sym))
541 if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
545 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
546 /* no previous value and not saved */
549 /* maybe print value in verbose mode... */
552 for_all_symbols(i, sym) {
553 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
554 /* Reset values of generates values, so they'll appear
555 * as new, if they should become visible, but that
556 * doesn't quite work if the Kconfig and the saved
557 * configuration disagree.
559 if (sym->visible == no && !conf_unsaved)
560 sym->flags &= ~SYMBOL_DEF_USER;
565 /* Reset a string value if it's out of range */
566 if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
568 sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
577 sym_add_change_count(conf_warnings || conf_unsaved);
583 * Kconfig configuration printer
585 * This printer is used when generating the resulting configuration after
586 * kconfig invocation and `defconfig' files. Unset symbol might be omitted by
587 * passing a non-NULL argument to the printer.
591 kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
598 bool skip_unset = (arg != NULL);
601 fprintf(fp, "# %s%s is not set\n",
610 fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
614 kconfig_print_comment(FILE *fp, const char *value, void *arg)
616 const char *p = value;
620 l = strcspn(p, "\n");
624 xfwrite(p, l, 1, fp);
633 static struct conf_printer kconfig_printer_cb =
635 .print_symbol = kconfig_print_symbol,
636 .print_comment = kconfig_print_comment,
642 * This printer is used when generating the `include/generated/autoconf.h' file.
645 header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
651 const char *suffix = "";
660 fprintf(fp, "#define %s%s%s 1\n",
661 CONFIG_, sym->name, suffix);
666 const char *prefix = "";
668 if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
670 fprintf(fp, "#define %s%s %s%s\n",
671 CONFIG_, sym->name, prefix, value);
676 fprintf(fp, "#define %s%s %s\n",
677 CONFIG_, sym->name, value);
686 header_print_comment(FILE *fp, const char *value, void *arg)
688 const char *p = value;
693 l = strcspn(p, "\n");
697 xfwrite(p, l, 1, fp);
704 fprintf(fp, " */\n");
707 static struct conf_printer header_printer_cb =
709 .print_symbol = header_print_symbol,
710 .print_comment = header_print_comment,
713 static void conf_write_symbol(FILE *fp, struct symbol *sym,
714 struct conf_printer *printer, void *printer_arg)
722 str = sym_get_string_value(sym);
723 str = sym_escape_string_value(str);
724 printer->print_symbol(fp, sym, str, printer_arg);
728 str = sym_get_string_value(sym);
729 printer->print_symbol(fp, sym, str, printer_arg);
734 conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
738 snprintf(buf, sizeof(buf),
740 "Automatically generated file; DO NOT EDIT.\n"
742 rootmenu.prompt->text);
744 printer->print_comment(fp, buf, printer_arg);
748 * Write out a minimal config.
749 * All values that has default values are skipped as this is redundant.
751 int conf_write_defconfig(const char *filename)
757 out = fopen(filename, "w");
761 sym_clear_all_valid();
763 /* Traverse all menus to find all relevant symbols */
764 menu = rootmenu.list;
770 if (!menu_is_visible(menu))
772 } else if (!sym_is_choice(sym)) {
774 if (!(sym->flags & SYMBOL_WRITE))
776 sym->flags &= ~SYMBOL_WRITE;
777 /* If we cannot change the symbol - skip */
778 if (!sym_is_changeable(sym))
780 /* If symbol equals to default value - skip */
781 if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
785 * If symbol is a choice value and equals to the
786 * default for a choice - skip.
787 * But only if value is bool and equal to "y" and
788 * choice is not "optional".
789 * (If choice is "optional" then all values can be "n")
791 if (sym_is_choice_value(sym)) {
795 cs = prop_get_symbol(sym_get_choice_prop(sym));
796 ds = sym_choice_default(cs);
797 if (!sym_is_optional(cs) && sym == ds) {
798 if ((sym->type == S_BOOLEAN) &&
799 sym_get_tristate_value(sym) == yes)
803 conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
806 if (menu->list != NULL) {
809 else if (menu->next != NULL) {
812 while ((menu = menu->parent)) {
813 if (menu->next != NULL) {
824 int conf_write(const char *name)
830 char tmpname[PATH_MAX + 1], oldname[PATH_MAX + 1];
833 bool need_newline = false;
836 name = conf_get_configname();
839 fprintf(stderr, "config name is empty\n");
844 fprintf(stderr, "%s: Is a directory\n", name);
848 if (make_parent_dir(name))
851 env = getenv("KCONFIG_OVERWRITECONFIG");
854 out = fopen(name, "w");
856 snprintf(tmpname, sizeof(tmpname), "%s.%d.tmp",
857 name, (int)getpid());
858 out = fopen(tmpname, "w");
863 conf_write_heading(out, &kconfig_printer_cb, NULL);
865 if (!conf_get_changed())
866 sym_clear_all_valid();
868 menu = rootmenu.list;
872 if (!menu_is_visible(menu))
874 str = menu_get_prompt(menu);
879 need_newline = false;
880 } else if (!(sym->flags & SYMBOL_CHOICE) &&
881 !(sym->flags & SYMBOL_WRITTEN)) {
883 if (!(sym->flags & SYMBOL_WRITE))
887 need_newline = false;
889 sym->flags |= SYMBOL_WRITTEN;
890 conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
900 else while ((menu = menu->parent)) {
901 if (!menu->sym && menu_is_visible(menu) &&
903 str = menu_get_prompt(menu);
904 fprintf(out, "# end of %s\n", str);
915 for_all_symbols(i, sym)
916 sym->flags &= ~SYMBOL_WRITTEN;
919 if (is_same(name, tmpname)) {
920 conf_message("No change to %s", name);
922 sym_set_change_count(0);
926 snprintf(oldname, sizeof(oldname), "%s.old", name);
927 rename(name, oldname);
928 if (rename(tmpname, name))
932 conf_message("configuration written to %s", name);
934 sym_set_change_count(0);
939 /* write a dependency file as used by kbuild to track dependencies */
940 static int conf_write_dep(const char *name)
945 out = fopen("..config.tmp", "w");
948 fprintf(out, "deps_config := \\\n");
949 for (file = file_list; file; file = file->next) {
951 fprintf(out, "\t%s \\\n", file->name);
953 fprintf(out, "\t%s\n", file->name);
955 fprintf(out, "\n%s: \\\n"
956 "\t$(deps_config)\n\n", conf_get_autoconfig_name());
958 env_write_dep(out, conf_get_autoconfig_name());
960 fprintf(out, "\n$(deps_config): ;\n");
963 if (make_parent_dir(name))
965 rename("..config.tmp", name);
969 static int conf_touch_deps(void)
971 const char *name, *tmp;
975 name = conf_get_autoconfig_name();
976 tmp = strrchr(name, '/');
977 depfile_prefix_len = tmp ? tmp - name + 1 : 0;
978 if (depfile_prefix_len + 1 > sizeof(depfile_path))
981 strncpy(depfile_path, name, depfile_prefix_len);
982 depfile_path[depfile_prefix_len] = 0;
984 conf_read_simple(name, S_DEF_AUTO);
985 sym_calc_value(modules_sym);
987 for_all_symbols(i, sym) {
989 if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name)
991 if (sym->flags & SYMBOL_WRITE) {
992 if (sym->flags & SYMBOL_DEF_AUTO) {
994 * symbol has old and new value,
1000 if (sym_get_tristate_value(sym) ==
1001 sym->def[S_DEF_AUTO].tri)
1007 if (!strcmp(sym_get_string_value(sym),
1008 sym->def[S_DEF_AUTO].val))
1016 * If there is no old value, only 'no' (unset)
1017 * is allowed as new value.
1019 switch (sym->type) {
1022 if (sym_get_tristate_value(sym) == no)
1029 } else if (!(sym->flags & SYMBOL_DEF_AUTO))
1030 /* There is neither an old nor a new value. */
1033 * There is an old value, but no new value ('no' (unset)
1034 * isn't saved in auto.conf, so the old value is always
1035 * different from 'no').
1038 res = conf_touch_dep(sym->name);
1046 int conf_write_autoconf(int overwrite)
1050 const char *autoconf_name = conf_get_autoconfig_name();
1054 if (!overwrite && is_present(autoconf_name))
1057 conf_write_dep("include/config/auto.conf.cmd");
1059 if (conf_touch_deps())
1062 out = fopen(".tmpconfig", "w");
1066 out_h = fopen(".tmpconfig.h", "w");
1072 conf_write_heading(out, &kconfig_printer_cb, NULL);
1073 conf_write_heading(out_h, &header_printer_cb, NULL);
1075 for_all_symbols(i, sym) {
1076 sym_calc_value(sym);
1077 if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
1080 /* write symbols to auto.conf and autoconf.h */
1081 conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
1082 conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
1087 name = getenv("KCONFIG_AUTOHEADER");
1089 name = "include/generated/autoconf.h";
1090 if (make_parent_dir(name))
1092 if (rename(".tmpconfig.h", name))
1095 if (make_parent_dir(autoconf_name))
1098 * This must be the last step, kbuild has a dependency on auto.conf
1099 * and this marks the successful completion of the previous steps.
1101 if (rename(".tmpconfig", autoconf_name))
1107 static int sym_change_count;
1108 static void (*conf_changed_callback)(void);
1110 void sym_set_change_count(int count)
1112 int _sym_change_count = sym_change_count;
1113 sym_change_count = count;
1114 if (conf_changed_callback &&
1115 (bool)_sym_change_count != (bool)count)
1116 conf_changed_callback();
1119 void sym_add_change_count(int count)
1121 sym_set_change_count(count + sym_change_count);
1124 bool conf_get_changed(void)
1126 return sym_change_count;
1129 void conf_set_changed_callback(void (*fn)(void))
1131 conf_changed_callback = fn;
1134 static bool randomize_choice_values(struct symbol *csym)
1136 struct property *prop;
1142 * If choice is mod then we may have more items selected
1143 * and if no then no-one.
1144 * In both cases stop.
1146 if (csym->curr.tri != yes)
1149 prop = sym_get_choice_prop(csym);
1151 /* count entries in choice block */
1153 expr_list_for_each_sym(prop->expr, e, sym)
1157 * find a random value and set it to yes,
1158 * set the rest to no so we have only one set
1160 def = (rand() % cnt);
1163 expr_list_for_each_sym(prop->expr, e, sym) {
1165 sym->def[S_DEF_USER].tri = yes;
1166 csym->def[S_DEF_USER].val = sym;
1169 sym->def[S_DEF_USER].tri = no;
1171 sym->flags |= SYMBOL_DEF_USER;
1172 /* clear VALID to get value calculated */
1173 sym->flags &= ~SYMBOL_VALID;
1175 csym->flags |= SYMBOL_DEF_USER;
1176 /* clear VALID to get value calculated */
1177 csym->flags &= ~(SYMBOL_VALID);
1182 void set_all_choice_values(struct symbol *csym)
1184 struct property *prop;
1188 prop = sym_get_choice_prop(csym);
1191 * Set all non-assinged choice values to no
1193 expr_list_for_each_sym(prop->expr, e, sym) {
1194 if (!sym_has_value(sym))
1195 sym->def[S_DEF_USER].tri = no;
1197 csym->flags |= SYMBOL_DEF_USER;
1198 /* clear VALID to get value calculated */
1199 csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);
1202 bool conf_set_all_new_symbols(enum conf_def_mode mode)
1204 struct symbol *sym, *csym;
1205 int i, cnt, pby, pty, ptm; /* pby: probability of bool = y
1206 * pty: probability of tristate = y
1207 * ptm: probability of tristate = m
1210 pby = 50; pty = ptm = 33; /* can't go as the default in switch-case
1211 * below, otherwise gcc whines about
1212 * -Wmaybe-uninitialized */
1213 if (mode == def_random) {
1215 char *env = getenv("KCONFIG_PROBABILITY");
1217 while( env && *env ) {
1219 int tmp = strtol( env, &endp, 10 );
1220 if( tmp >= 0 && tmp <= 100 ) {
1224 perror( "KCONFIG_PROBABILITY" );
1227 env = (*endp == ':') ? endp+1 : endp;
1234 pby = p[0]; ptm = pby/2; pty = pby-ptm;
1237 pty = p[0]; ptm = p[1]; pby = pty + ptm;
1240 pby = p[0]; pty = p[1]; ptm = p[2];
1244 if( pty+ptm > 100 ) {
1246 perror( "KCONFIG_PROBABILITY" );
1250 bool has_changed = false;
1252 for_all_symbols(i, sym) {
1253 if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID))
1255 switch (sym_get_type(sym)) {
1261 sym->def[S_DEF_USER].tri = yes;
1264 sym->def[S_DEF_USER].tri = mod;
1267 if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
1268 sym->def[S_DEF_USER].tri = yes;
1270 sym->def[S_DEF_USER].tri = no;
1273 sym->def[S_DEF_USER].tri = no;
1275 if (sym->type == S_TRISTATE) {
1277 sym->def[S_DEF_USER].tri = yes;
1278 else if (cnt < (pty+ptm))
1279 sym->def[S_DEF_USER].tri = mod;
1280 } else if (cnt < pby)
1281 sym->def[S_DEF_USER].tri = yes;
1286 if (!(sym_is_choice(sym) && mode == def_random))
1287 sym->flags |= SYMBOL_DEF_USER;
1295 sym_clear_all_valid();
1298 * We have different type of choice blocks.
1299 * If curr.tri equals to mod then we can select several
1300 * choice symbols in one block.
1301 * In this case we do nothing.
1302 * If curr.tri equals yes then only one symbol can be
1303 * selected in a choice block and we set it to yes,
1304 * and the rest to no.
1306 if (mode != def_random) {
1307 for_all_symbols(i, csym) {
1308 if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
1309 sym_is_choice_value(csym))
1310 csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
1314 for_all_symbols(i, csym) {
1315 if (sym_has_value(csym) || !sym_is_choice(csym))
1318 sym_calc_value(csym);
1319 if (mode == def_random)
1320 has_changed |= randomize_choice_values(csym);
1322 set_all_choice_values(csym);
1330 void conf_rewrite_mod_or_yes(enum conf_def_mode mode)
1334 tristate old_val = (mode == def_y2m) ? yes : mod;
1335 tristate new_val = (mode == def_y2m) ? mod : yes;
1337 for_all_symbols(i, sym) {
1338 if (sym_get_type(sym) == S_TRISTATE &&
1339 sym->def[S_DEF_USER].tri == old_val)
1340 sym->def[S_DEF_USER].tri = new_val;
1342 sym_clear_all_valid();