1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
10 #include <sys/utsname.h>
14 struct symbol symbol_yes = {
17 .flags = SYMBOL_CONST|SYMBOL_VALID,
21 .flags = SYMBOL_CONST|SYMBOL_VALID,
25 .flags = SYMBOL_CONST|SYMBOL_VALID,
29 .flags = SYMBOL_VALID,
32 struct symbol *sym_defconfig_list;
33 struct symbol *modules_sym;
36 enum symbol_type sym_get_type(struct symbol *sym)
38 enum symbol_type type = sym->type;
40 if (type == S_TRISTATE) {
41 if (sym_is_choice_value(sym) && sym->visible == yes)
43 else if (modules_val == no)
49 const char *sym_type_name(enum symbol_type type)
68 struct property *sym_get_choice_prop(struct symbol *sym)
70 struct property *prop;
72 for_all_choices(sym, prop)
77 static struct property *sym_get_default_prop(struct symbol *sym)
79 struct property *prop;
81 for_all_defaults(sym, prop) {
82 prop->visible.tri = expr_calc_value(prop->visible.expr);
83 if (prop->visible.tri != no)
89 struct property *sym_get_range_prop(struct symbol *sym)
91 struct property *prop;
93 for_all_properties(sym, prop, P_RANGE) {
94 prop->visible.tri = expr_calc_value(prop->visible.expr);
95 if (prop->visible.tri != no)
101 static long long sym_get_range_val(struct symbol *sym, int base)
114 return strtoll(sym->curr.val, NULL, base);
117 static void sym_validate_range(struct symbol *sym)
119 struct property *prop;
134 prop = sym_get_range_prop(sym);
137 val = strtoll(sym->curr.val, NULL, base);
138 val2 = sym_get_range_val(prop->expr->left.sym, base);
140 val2 = sym_get_range_val(prop->expr->right.sym, base);
144 if (sym->type == S_INT)
145 sprintf(str, "%lld", val2);
147 sprintf(str, "0x%llx", val2);
148 sym->curr.val = xstrdup(str);
151 static void sym_set_changed(struct symbol *sym)
153 struct property *prop;
155 sym->flags |= SYMBOL_CHANGED;
156 for (prop = sym->prop; prop; prop = prop->next) {
158 prop->menu->flags |= MENU_CHANGED;
162 static void sym_set_all_changed(void)
167 for_all_symbols(i, sym)
168 sym_set_changed(sym);
171 static void sym_calc_visibility(struct symbol *sym)
173 struct property *prop;
174 struct symbol *choice_sym = NULL;
177 /* any prompt visible? */
180 if (sym_is_choice_value(sym))
181 choice_sym = prop_get_symbol(sym_get_choice_prop(sym));
183 for_all_prompts(sym, prop) {
184 prop->visible.tri = expr_calc_value(prop->visible.expr);
186 * Tristate choice_values with visibility 'mod' are
187 * not visible if the corresponding choice's value is
190 if (choice_sym && sym->type == S_TRISTATE &&
191 prop->visible.tri == mod && choice_sym->curr.tri == yes)
192 prop->visible.tri = no;
194 tri = EXPR_OR(tri, prop->visible.tri);
196 if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
198 if (sym->visible != tri) {
200 sym_set_changed(sym);
202 if (sym_is_choice_value(sym))
204 /* defaulting to "yes" if no explicit "depends on" are given */
206 if (sym->dir_dep.expr)
207 tri = expr_calc_value(sym->dir_dep.expr);
208 if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
210 if (sym->dir_dep.tri != tri) {
211 sym->dir_dep.tri = tri;
212 sym_set_changed(sym);
215 if (sym->rev_dep.expr)
216 tri = expr_calc_value(sym->rev_dep.expr);
217 if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
219 if (sym->rev_dep.tri != tri) {
220 sym->rev_dep.tri = tri;
221 sym_set_changed(sym);
224 if (sym->implied.expr && sym->dir_dep.tri != no)
225 tri = expr_calc_value(sym->implied.expr);
226 if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
228 if (sym->implied.tri != tri) {
229 sym->implied.tri = tri;
230 sym_set_changed(sym);
235 * Find the default symbol for a choice.
236 * First try the default values for the choice symbol
237 * Next locate the first visible choice value
238 * Return NULL if none was found
240 struct symbol *sym_choice_default(struct symbol *sym)
242 struct symbol *def_sym;
243 struct property *prop;
246 /* any of the defaults visible? */
247 for_all_defaults(sym, prop) {
248 prop->visible.tri = expr_calc_value(prop->visible.expr);
249 if (prop->visible.tri == no)
251 def_sym = prop_get_symbol(prop);
252 if (def_sym->visible != no)
256 /* just get the first visible value */
257 prop = sym_get_choice_prop(sym);
258 expr_list_for_each_sym(prop->expr, e, def_sym)
259 if (def_sym->visible != no)
262 /* failed to locate any defaults */
266 static struct symbol *sym_calc_choice(struct symbol *sym)
268 struct symbol *def_sym;
269 struct property *prop;
273 /* first calculate all choice values' visibilities */
275 prop = sym_get_choice_prop(sym);
276 expr_list_for_each_sym(prop->expr, e, def_sym) {
277 sym_calc_visibility(def_sym);
278 if (def_sym->visible != no)
279 flags &= def_sym->flags;
282 sym->flags &= flags | ~SYMBOL_DEF_USER;
284 /* is the user choice visible? */
285 def_sym = sym->def[S_DEF_USER].val;
286 if (def_sym && def_sym->visible != no)
289 def_sym = sym_choice_default(sym);
292 /* no choice? reset tristate value */
298 void sym_calc_value(struct symbol *sym)
300 struct symbol_value newval, oldval;
301 struct property *prop;
307 if (sym->flags & SYMBOL_VALID)
310 if (sym_is_choice_value(sym) &&
311 sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES) {
312 sym->flags &= ~SYMBOL_NEED_SET_CHOICE_VALUES;
313 prop = sym_get_choice_prop(sym);
314 sym_calc_value(prop_get_symbol(prop));
317 sym->flags |= SYMBOL_VALID;
325 newval = symbol_empty.curr;
329 newval = symbol_no.curr;
332 sym->curr.val = sym->name;
336 sym->flags &= ~SYMBOL_WRITE;
338 sym_calc_visibility(sym);
340 if (sym->visible != no)
341 sym->flags |= SYMBOL_WRITE;
343 /* set default if recursively called */
346 switch (sym_get_type(sym)) {
349 if (sym_is_choice_value(sym) && sym->visible == yes) {
350 prop = sym_get_choice_prop(sym);
351 newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
353 if (sym->visible != no) {
354 /* if the symbol is visible use the user value
355 * if available, otherwise try the default value
357 if (sym_has_value(sym)) {
358 newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,
363 if (sym->rev_dep.tri != no)
364 sym->flags |= SYMBOL_WRITE;
365 if (!sym_is_choice(sym)) {
366 prop = sym_get_default_prop(sym);
368 sym->flags |= SYMBOL_WRITE;
369 newval.tri = EXPR_AND(expr_calc_value(prop->expr),
372 if (sym->implied.tri != no) {
373 sym->flags |= SYMBOL_WRITE;
374 newval.tri = EXPR_OR(newval.tri, sym->implied.tri);
378 if (sym->dir_dep.tri < sym->rev_dep.tri) {
381 newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
384 if (newval.tri == mod &&
385 (sym_get_type(sym) == S_BOOLEAN || sym->implied.tri == yes))
391 if (sym->visible != no && sym_has_value(sym)) {
392 newval.val = sym->def[S_DEF_USER].val;
395 prop = sym_get_default_prop(sym);
397 struct symbol *ds = prop_get_symbol(prop);
399 sym->flags |= SYMBOL_WRITE;
401 newval.val = ds->curr.val;
410 if (sym_is_choice(sym) && newval.tri == yes)
411 sym->curr.val = sym_calc_choice(sym);
412 sym_validate_range(sym);
414 if (memcmp(&oldval, &sym->curr, sizeof(oldval))) {
415 sym_set_changed(sym);
416 if (modules_sym == sym) {
417 sym_set_all_changed();
418 modules_val = modules_sym->curr.tri;
422 if (sym_is_choice(sym)) {
423 struct symbol *choice_sym;
425 prop = sym_get_choice_prop(sym);
426 expr_list_for_each_sym(prop->expr, e, choice_sym) {
427 if ((sym->flags & SYMBOL_WRITE) &&
428 choice_sym->visible != no)
429 choice_sym->flags |= SYMBOL_WRITE;
430 if (sym->flags & SYMBOL_CHANGED)
431 sym_set_changed(choice_sym);
435 if (sym->flags & SYMBOL_NO_WRITE)
436 sym->flags &= ~SYMBOL_WRITE;
438 if (sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES)
439 set_all_choice_values(sym);
442 void sym_clear_all_valid(void)
447 for_all_symbols(i, sym)
448 sym->flags &= ~SYMBOL_VALID;
449 sym_add_change_count(1);
450 sym_calc_value(modules_sym);
453 bool sym_tristate_within_range(struct symbol *sym, tristate val)
455 int type = sym_get_type(sym);
457 if (sym->visible == no)
460 if (type != S_BOOLEAN && type != S_TRISTATE)
463 if (type == S_BOOLEAN && val == mod)
465 if (sym->visible <= sym->rev_dep.tri)
467 if (sym->implied.tri == yes && val == mod)
469 if (sym_is_choice_value(sym) && sym->visible == yes)
471 return val >= sym->rev_dep.tri && val <= sym->visible;
474 bool sym_set_tristate_value(struct symbol *sym, tristate val)
476 tristate oldval = sym_get_tristate_value(sym);
478 if (oldval != val && !sym_tristate_within_range(sym, val))
481 if (!(sym->flags & SYMBOL_DEF_USER)) {
482 sym->flags |= SYMBOL_DEF_USER;
483 sym_set_changed(sym);
486 * setting a choice value also resets the new flag of the choice
487 * symbol and all other choice values.
489 if (sym_is_choice_value(sym) && val == yes) {
490 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
491 struct property *prop;
494 cs->def[S_DEF_USER].val = sym;
495 cs->flags |= SYMBOL_DEF_USER;
496 prop = sym_get_choice_prop(cs);
497 for (e = prop->expr; e; e = e->left.expr) {
498 if (e->right.sym->visible != no)
499 e->right.sym->flags |= SYMBOL_DEF_USER;
503 sym->def[S_DEF_USER].tri = val;
505 sym_clear_all_valid();
510 tristate sym_toggle_tristate_value(struct symbol *sym)
512 tristate oldval, newval;
514 oldval = newval = sym_get_tristate_value(sym);
527 if (sym_set_tristate_value(sym, newval))
529 } while (oldval != newval);
533 bool sym_string_valid(struct symbol *sym, const char *str)
546 if (ch == '0' && *str != 0)
548 while ((ch = *str++)) {
554 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
560 } while ((ch = *str++));
576 bool sym_string_within_range(struct symbol *sym, const char *str)
578 struct property *prop;
583 return sym_string_valid(sym, str);
585 if (!sym_string_valid(sym, str))
587 prop = sym_get_range_prop(sym);
590 val = strtoll(str, NULL, 10);
591 return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
592 val <= sym_get_range_val(prop->expr->right.sym, 10);
594 if (!sym_string_valid(sym, str))
596 prop = sym_get_range_prop(sym);
599 val = strtoll(str, NULL, 16);
600 return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
601 val <= sym_get_range_val(prop->expr->right.sym, 16);
606 return sym_tristate_within_range(sym, yes);
608 return sym_tristate_within_range(sym, mod);
610 return sym_tristate_within_range(sym, no);
618 bool sym_set_string_value(struct symbol *sym, const char *newval)
629 return sym_set_tristate_value(sym, yes);
631 return sym_set_tristate_value(sym, mod);
633 return sym_set_tristate_value(sym, no);
640 if (!sym_string_within_range(sym, newval))
643 if (!(sym->flags & SYMBOL_DEF_USER)) {
644 sym->flags |= SYMBOL_DEF_USER;
645 sym_set_changed(sym);
648 oldval = sym->def[S_DEF_USER].val;
649 size = strlen(newval) + 1;
650 if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
652 sym->def[S_DEF_USER].val = val = xmalloc(size);
655 } else if (!oldval || strcmp(oldval, newval))
656 sym->def[S_DEF_USER].val = val = xmalloc(size);
661 free((void *)oldval);
662 sym_clear_all_valid();
668 * Find the default value associated to a symbol.
669 * For tristate symbol handle the modules=n case
670 * in which case "m" becomes "y".
671 * If the symbol does not have any default then fallback
672 * to the fixed default values.
674 const char *sym_get_string_default(struct symbol *sym)
676 struct property *prop;
681 sym_calc_visibility(sym);
682 sym_calc_value(modules_sym);
683 val = symbol_no.curr.tri;
684 str = symbol_empty.curr.val;
686 /* If symbol has a default value look it up */
687 prop = sym_get_default_prop(sym);
692 /* The visibility may limit the value from yes => mod */
693 val = EXPR_AND(expr_calc_value(prop->expr), prop->visible.tri);
697 * The following fails to handle the situation
698 * where a default value is further limited by
701 ds = prop_get_symbol(prop);
704 str = (const char *)ds->curr.val;
709 /* Handle select statements */
710 val = EXPR_OR(val, sym->rev_dep.tri);
712 /* transpose mod to yes if modules are not enabled */
714 if (!sym_is_choice_value(sym) && modules_sym->curr.tri == no)
717 /* transpose mod to yes if type is bool */
718 if (sym->type == S_BOOLEAN && val == mod)
721 /* adjust the default value if this symbol is implied by another */
722 if (val < sym->implied.tri)
723 val = sym->implied.tri;
730 case mod: return "m";
731 case yes: return "y";
744 const char *sym_get_string_value(struct symbol *sym)
751 val = sym_get_tristate_value(sym);
756 sym_calc_value(modules_sym);
757 return (modules_sym->curr.tri == no) ? "n" : "m";
765 return (const char *)sym->curr.val;
768 bool sym_is_changeable(struct symbol *sym)
770 return sym->visible > sym->rev_dep.tri;
773 static unsigned strhash(const char *s)
776 unsigned hash = 2166136261U;
778 hash = (hash ^ *s) * 0x01000193;
782 struct symbol *sym_lookup(const char *name, int flags)
784 struct symbol *symbol;
789 if (name[0] && !name[1]) {
791 case 'y': return &symbol_yes;
792 case 'm': return &symbol_mod;
793 case 'n': return &symbol_no;
796 hash = strhash(name) % SYMBOL_HASHSIZE;
798 for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
800 !strcmp(symbol->name, name) &&
801 (flags ? symbol->flags & flags
802 : !(symbol->flags & (SYMBOL_CONST|SYMBOL_CHOICE))))
805 new_name = xstrdup(name);
811 symbol = xmalloc(sizeof(*symbol));
812 memset(symbol, 0, sizeof(*symbol));
813 symbol->name = new_name;
814 symbol->type = S_UNKNOWN;
815 symbol->flags |= flags;
817 symbol->next = symbol_hash[hash];
818 symbol_hash[hash] = symbol;
823 struct symbol *sym_find(const char *name)
825 struct symbol *symbol = NULL;
831 if (name[0] && !name[1]) {
833 case 'y': return &symbol_yes;
834 case 'm': return &symbol_mod;
835 case 'n': return &symbol_no;
838 hash = strhash(name) % SYMBOL_HASHSIZE;
840 for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
842 !strcmp(symbol->name, name) &&
843 !(symbol->flags & SYMBOL_CONST))
850 const char *sym_escape_string_value(const char *in)
857 reslen = strlen(in) + strlen("\"\"") + 1;
861 l = strcspn(p, "\"\\");
871 res = xmalloc(reslen);
878 l = strcspn(p, "\"\\");
886 strncat(res, p++, 1);
898 /* Compare matched symbols as thus:
899 * - first, symbols that match exactly
900 * - then, alphabetical sort
902 static int sym_rel_comp(const void *sym1, const void *sym2)
904 const struct sym_match *s1 = sym1;
905 const struct sym_match *s2 = sym2;
909 * - if matched length on symbol s1 is the length of that symbol,
910 * then this symbol should come first;
911 * - if matched length on symbol s2 is the length of that symbol,
912 * then this symbol should come first.
913 * Note: since the search can be a regexp, both symbols may match
914 * exactly; if this is the case, we can't decide which comes first,
915 * and we fallback to sorting alphabetically.
917 exact1 = (s1->eo - s1->so) == strlen(s1->sym->name);
918 exact2 = (s2->eo - s2->so) == strlen(s2->sym->name);
919 if (exact1 && !exact2)
921 if (!exact1 && exact2)
924 /* As a fallback, sort symbols alphabetically */
925 return strcmp(s1->sym->name, s2->sym->name);
928 struct symbol **sym_re_search(const char *pattern)
930 struct symbol *sym, **sym_arr = NULL;
931 struct sym_match *sym_match_arr = NULL;
938 if (strlen(pattern) == 0)
940 if (regcomp(&re, pattern, REG_EXTENDED|REG_ICASE))
943 for_all_symbols(i, sym) {
944 if (sym->flags & SYMBOL_CONST || !sym->name)
946 if (regexec(&re, sym->name, 1, match, 0))
951 tmp = realloc(sym_match_arr, size * sizeof(struct sym_match));
953 goto sym_re_search_free;
957 /* As regexec returned 0, we know we have a match, so
958 * we can use match[0].rm_[se]o without further checks
960 sym_match_arr[cnt].so = match[0].rm_so;
961 sym_match_arr[cnt].eo = match[0].rm_eo;
962 sym_match_arr[cnt++].sym = sym;
965 qsort(sym_match_arr, cnt, sizeof(struct sym_match), sym_rel_comp);
966 sym_arr = malloc((cnt+1) * sizeof(struct symbol *));
968 goto sym_re_search_free;
969 for (i = 0; i < cnt; i++)
970 sym_arr[i] = sym_match_arr[i].sym;
974 /* sym_match_arr can be NULL if no match, but free(NULL) is OK */
982 * When we check for recursive dependencies we use a stack to save
983 * current state so we can print out relevant info to user.
984 * The entries are located on the call stack so no need to free memory.
985 * Note insert() remove() must always match to properly clear the stack.
987 static struct dep_stack {
988 struct dep_stack *prev, *next;
990 struct property *prop;
994 static void dep_stack_insert(struct dep_stack *stack, struct symbol *sym)
996 memset(stack, 0, sizeof(*stack));
998 check_top->next = stack;
999 stack->prev = check_top;
1004 static void dep_stack_remove(void)
1006 check_top = check_top->prev;
1008 check_top->next = NULL;
1012 * Called when we have detected a recursive dependency.
1013 * check_top point to the top of the stact so we use
1014 * the ->prev pointer to locate the bottom of the stack.
1016 static void sym_check_print_recursive(struct symbol *last_sym)
1018 struct dep_stack *stack;
1019 struct symbol *sym, *next_sym;
1020 struct menu *menu = NULL;
1021 struct property *prop;
1022 struct dep_stack cv_stack;
1024 if (sym_is_choice_value(last_sym)) {
1025 dep_stack_insert(&cv_stack, last_sym);
1026 last_sym = prop_get_symbol(sym_get_choice_prop(last_sym));
1029 for (stack = check_top; stack != NULL; stack = stack->prev)
1030 if (stack->sym == last_sym)
1033 fprintf(stderr, "unexpected recursive dependency error\n");
1037 for (; stack; stack = stack->next) {
1039 next_sym = stack->next ? stack->next->sym : last_sym;
1042 prop = stack->sym->prop;
1044 /* for choice values find the menu entry (used below) */
1045 if (sym_is_choice(sym) || sym_is_choice_value(sym)) {
1046 for (prop = sym->prop; prop; prop = prop->next) {
1052 if (stack->sym == last_sym)
1053 fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
1054 prop->file->name, prop->lineno);
1056 if (sym_is_choice(sym)) {
1057 fprintf(stderr, "%s:%d:\tchoice %s contains symbol %s\n",
1058 menu->file->name, menu->lineno,
1059 sym->name ? sym->name : "<choice>",
1060 next_sym->name ? next_sym->name : "<choice>");
1061 } else if (sym_is_choice_value(sym)) {
1062 fprintf(stderr, "%s:%d:\tsymbol %s is part of choice %s\n",
1063 menu->file->name, menu->lineno,
1064 sym->name ? sym->name : "<choice>",
1065 next_sym->name ? next_sym->name : "<choice>");
1066 } else if (stack->expr == &sym->dir_dep.expr) {
1067 fprintf(stderr, "%s:%d:\tsymbol %s depends on %s\n",
1068 prop->file->name, prop->lineno,
1069 sym->name ? sym->name : "<choice>",
1070 next_sym->name ? next_sym->name : "<choice>");
1071 } else if (stack->expr == &sym->rev_dep.expr) {
1072 fprintf(stderr, "%s:%d:\tsymbol %s is selected by %s\n",
1073 prop->file->name, prop->lineno,
1074 sym->name ? sym->name : "<choice>",
1075 next_sym->name ? next_sym->name : "<choice>");
1076 } else if (stack->expr == &sym->implied.expr) {
1077 fprintf(stderr, "%s:%d:\tsymbol %s is implied by %s\n",
1078 prop->file->name, prop->lineno,
1079 sym->name ? sym->name : "<choice>",
1080 next_sym->name ? next_sym->name : "<choice>");
1081 } else if (stack->expr) {
1082 fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
1083 prop->file->name, prop->lineno,
1084 sym->name ? sym->name : "<choice>",
1085 prop_get_type_name(prop->type),
1086 next_sym->name ? next_sym->name : "<choice>");
1088 fprintf(stderr, "%s:%d:\tsymbol %s %s is visible depending on %s\n",
1089 prop->file->name, prop->lineno,
1090 sym->name ? sym->name : "<choice>",
1091 prop_get_type_name(prop->type),
1092 next_sym->name ? next_sym->name : "<choice>");
1097 "For a resolution refer to Documentation/kbuild/kconfig-language.rst\n"
1098 "subsection \"Kconfig recursive dependency limitations\"\n"
1101 if (check_top == &cv_stack)
1105 static struct symbol *sym_check_expr_deps(struct expr *e)
1114 sym = sym_check_expr_deps(e->left.expr);
1117 return sym_check_expr_deps(e->right.expr);
1119 return sym_check_expr_deps(e->left.expr);
1126 sym = sym_check_deps(e->left.sym);
1129 return sym_check_deps(e->right.sym);
1131 return sym_check_deps(e->left.sym);
1135 fprintf(stderr, "Oops! How to check %d?\n", e->type);
1139 /* return NULL when dependencies are OK */
1140 static struct symbol *sym_check_sym_deps(struct symbol *sym)
1142 struct symbol *sym2;
1143 struct property *prop;
1144 struct dep_stack stack;
1146 dep_stack_insert(&stack, sym);
1148 stack.expr = &sym->dir_dep.expr;
1149 sym2 = sym_check_expr_deps(sym->dir_dep.expr);
1153 stack.expr = &sym->rev_dep.expr;
1154 sym2 = sym_check_expr_deps(sym->rev_dep.expr);
1158 stack.expr = &sym->implied.expr;
1159 sym2 = sym_check_expr_deps(sym->implied.expr);
1165 for (prop = sym->prop; prop; prop = prop->next) {
1166 if (prop->type == P_CHOICE || prop->type == P_SELECT ||
1167 prop->type == P_IMPLY)
1170 sym2 = sym_check_expr_deps(prop->visible.expr);
1173 if (prop->type != P_DEFAULT || sym_is_choice(sym))
1175 stack.expr = &prop->expr;
1176 sym2 = sym_check_expr_deps(prop->expr);
1188 static struct symbol *sym_check_choice_deps(struct symbol *choice)
1190 struct symbol *sym, *sym2;
1191 struct property *prop;
1193 struct dep_stack stack;
1195 dep_stack_insert(&stack, choice);
1197 prop = sym_get_choice_prop(choice);
1198 expr_list_for_each_sym(prop->expr, e, sym)
1199 sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
1201 choice->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
1202 sym2 = sym_check_sym_deps(choice);
1203 choice->flags &= ~SYMBOL_CHECK;
1207 expr_list_for_each_sym(prop->expr, e, sym) {
1208 sym2 = sym_check_sym_deps(sym);
1213 expr_list_for_each_sym(prop->expr, e, sym)
1214 sym->flags &= ~SYMBOL_CHECK;
1216 if (sym2 && sym_is_choice_value(sym2) &&
1217 prop_get_symbol(sym_get_choice_prop(sym2)) == choice)
1225 struct symbol *sym_check_deps(struct symbol *sym)
1227 struct symbol *sym2;
1228 struct property *prop;
1230 if (sym->flags & SYMBOL_CHECK) {
1231 sym_check_print_recursive(sym);
1234 if (sym->flags & SYMBOL_CHECKED)
1237 if (sym_is_choice_value(sym)) {
1238 struct dep_stack stack;
1240 /* for choice groups start the check with main choice symbol */
1241 dep_stack_insert(&stack, sym);
1242 prop = sym_get_choice_prop(sym);
1243 sym2 = sym_check_deps(prop_get_symbol(prop));
1245 } else if (sym_is_choice(sym)) {
1246 sym2 = sym_check_choice_deps(sym);
1248 sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
1249 sym2 = sym_check_sym_deps(sym);
1250 sym->flags &= ~SYMBOL_CHECK;
1256 struct symbol *prop_get_symbol(struct property *prop)
1258 if (prop->expr && (prop->expr->type == E_SYMBOL ||
1259 prop->expr->type == E_LIST))
1260 return prop->expr->left.sym;
1264 const char *prop_get_type_name(enum prop_type type)