2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
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 struct expr *sym_env_list;
38 static void sym_add_default(struct symbol *sym, const char *def)
40 struct property *prop = prop_alloc(P_DEFAULT, sym);
42 prop->expr = expr_alloc_symbol(sym_lookup(def, SYMBOL_CONST));
49 static bool inited = false;
57 sym = sym_lookup("UNAME_RELEASE", 0);
59 sym->flags |= SYMBOL_AUTO;
60 sym_add_default(sym, uts.release);
63 enum symbol_type sym_get_type(struct symbol *sym)
65 enum symbol_type type = sym->type;
67 if (type == S_TRISTATE) {
68 if (sym_is_choice_value(sym) && sym->visible == yes)
70 else if (modules_val == no)
76 const char *sym_type_name(enum symbol_type type)
97 struct property *sym_get_choice_prop(struct symbol *sym)
99 struct property *prop;
101 for_all_choices(sym, prop)
106 struct property *sym_get_env_prop(struct symbol *sym)
108 struct property *prop;
110 for_all_properties(sym, prop, P_ENV)
115 struct property *sym_get_default_prop(struct symbol *sym)
117 struct property *prop;
119 for_all_defaults(sym, prop) {
120 prop->visible.tri = expr_calc_value(prop->visible.expr);
121 if (prop->visible.tri != no)
127 static struct property *sym_get_range_prop(struct symbol *sym)
129 struct property *prop;
131 for_all_properties(sym, prop, P_RANGE) {
132 prop->visible.tri = expr_calc_value(prop->visible.expr);
133 if (prop->visible.tri != no)
139 static long long sym_get_range_val(struct symbol *sym, int base)
152 return strtoll(sym->curr.val, NULL, base);
155 static void sym_validate_range(struct symbol *sym)
157 struct property *prop;
172 prop = sym_get_range_prop(sym);
175 val = strtoll(sym->curr.val, NULL, base);
176 val2 = sym_get_range_val(prop->expr->left.sym, base);
178 val2 = sym_get_range_val(prop->expr->right.sym, base);
182 if (sym->type == S_INT)
183 sprintf(str, "%lld", val2);
185 sprintf(str, "0x%llx", val2);
186 sym->curr.val = strdup(str);
189 static void sym_calc_visibility(struct symbol *sym)
191 struct property *prop;
194 /* any prompt visible? */
196 for_all_prompts(sym, prop) {
197 prop->visible.tri = expr_calc_value(prop->visible.expr);
198 tri = EXPR_OR(tri, prop->visible.tri);
200 if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
202 if (sym->visible != tri) {
204 sym_set_changed(sym);
206 if (sym_is_choice_value(sym))
208 /* defaulting to "yes" if no explicit "depends on" are given */
210 if (sym->dir_dep.expr)
211 tri = expr_calc_value(sym->dir_dep.expr);
214 if (sym->dir_dep.tri != tri) {
215 sym->dir_dep.tri = tri;
216 sym_set_changed(sym);
219 if (sym->rev_dep.expr)
220 tri = expr_calc_value(sym->rev_dep.expr);
221 if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
223 if (sym->rev_dep.tri != tri) {
224 sym->rev_dep.tri = tri;
225 sym_set_changed(sym);
230 * Find the default symbol for a choice.
231 * First try the default values for the choice symbol
232 * Next locate the first visible choice value
233 * Return NULL if none was found
235 struct symbol *sym_choice_default(struct symbol *sym)
237 struct symbol *def_sym;
238 struct property *prop;
241 /* any of the defaults visible? */
242 for_all_defaults(sym, prop) {
243 prop->visible.tri = expr_calc_value(prop->visible.expr);
244 if (prop->visible.tri == no)
246 def_sym = prop_get_symbol(prop);
247 if (def_sym->visible != no)
251 /* just get the first visible value */
252 prop = sym_get_choice_prop(sym);
253 expr_list_for_each_sym(prop->expr, e, def_sym)
254 if (def_sym->visible != no)
257 /* failed to locate any defaults */
261 static struct symbol *sym_calc_choice(struct symbol *sym)
263 struct symbol *def_sym;
264 struct property *prop;
268 /* first calculate all choice values' visibilities */
270 prop = sym_get_choice_prop(sym);
271 expr_list_for_each_sym(prop->expr, e, def_sym) {
272 sym_calc_visibility(def_sym);
273 if (def_sym->visible != no)
274 flags &= def_sym->flags;
277 sym->flags &= flags | ~SYMBOL_DEF_USER;
279 /* is the user choice visible? */
280 def_sym = sym->def[S_DEF_USER].val;
281 if (def_sym && def_sym->visible != no)
284 def_sym = sym_choice_default(sym);
287 /* no choice? reset tristate value */
293 void sym_calc_value(struct symbol *sym)
295 struct symbol_value newval, oldval;
296 struct property *prop;
302 if (sym->flags & SYMBOL_VALID)
305 if (sym_is_choice_value(sym) &&
306 sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES) {
307 sym->flags &= ~SYMBOL_NEED_SET_CHOICE_VALUES;
308 prop = sym_get_choice_prop(sym);
309 sym_calc_value(prop_get_symbol(prop));
312 sym->flags |= SYMBOL_VALID;
320 newval = symbol_empty.curr;
324 newval = symbol_no.curr;
327 sym->curr.val = sym->name;
331 if (!sym_is_choice_value(sym))
332 sym->flags &= ~SYMBOL_WRITE;
334 sym_calc_visibility(sym);
336 /* set default if recursively called */
339 switch (sym_get_type(sym)) {
342 if (sym_is_choice_value(sym) && sym->visible == yes) {
343 prop = sym_get_choice_prop(sym);
344 newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
346 if (sym->visible != no) {
347 /* if the symbol is visible use the user value
348 * if available, otherwise try the default value
350 sym->flags |= SYMBOL_WRITE;
351 if (sym_has_value(sym)) {
352 newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,
357 if (sym->rev_dep.tri != no)
358 sym->flags |= SYMBOL_WRITE;
359 if (!sym_is_choice(sym)) {
360 prop = sym_get_default_prop(sym);
362 sym->flags |= SYMBOL_WRITE;
363 newval.tri = EXPR_AND(expr_calc_value(prop->expr),
368 if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {
370 e = expr_simplify_unmet_dep(sym->rev_dep.expr,
372 fprintf(stderr, "warning: (");
373 expr_fprint(e, stderr);
374 fprintf(stderr, ") selects %s which has unmet direct dependencies (",
376 expr_fprint(sym->dir_dep.expr, stderr);
377 fprintf(stderr, ")\n");
380 newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
382 if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
388 if (sym->visible != no) {
389 sym->flags |= SYMBOL_WRITE;
390 if (sym_has_value(sym)) {
391 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_AUTO)
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);
451 sym_calc_value(modules_sym);
454 void sym_set_changed(struct symbol *sym)
456 struct property *prop;
458 sym->flags |= SYMBOL_CHANGED;
459 for (prop = sym->prop; prop; prop = prop->next) {
461 prop->menu->flags |= MENU_CHANGED;
465 void sym_set_all_changed(void)
470 for_all_symbols(i, sym)
471 sym_set_changed(sym);
474 bool sym_tristate_within_range(struct symbol *sym, tristate val)
476 int type = sym_get_type(sym);
478 if (sym->visible == no)
481 if (type != S_BOOLEAN && type != S_TRISTATE)
484 if (type == S_BOOLEAN && val == mod)
486 if (sym->visible <= sym->rev_dep.tri)
488 if (sym_is_choice_value(sym) && sym->visible == yes)
490 return val >= sym->rev_dep.tri && val <= sym->visible;
493 bool sym_set_tristate_value(struct symbol *sym, tristate val)
495 tristate oldval = sym_get_tristate_value(sym);
497 if (oldval != val && !sym_tristate_within_range(sym, val))
500 if (!(sym->flags & SYMBOL_DEF_USER)) {
501 sym->flags |= SYMBOL_DEF_USER;
502 sym_set_changed(sym);
505 * setting a choice value also resets the new flag of the choice
506 * symbol and all other choice values.
508 if (sym_is_choice_value(sym) && val == yes) {
509 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
510 struct property *prop;
513 cs->def[S_DEF_USER].val = sym;
514 cs->flags |= SYMBOL_DEF_USER;
515 prop = sym_get_choice_prop(cs);
516 for (e = prop->expr; e; e = e->left.expr) {
517 if (e->right.sym->visible != no)
518 e->right.sym->flags |= SYMBOL_DEF_USER;
522 sym->def[S_DEF_USER].tri = val;
524 sym_clear_all_valid();
529 tristate sym_toggle_tristate_value(struct symbol *sym)
531 tristate oldval, newval;
533 oldval = newval = sym_get_tristate_value(sym);
546 if (sym_set_tristate_value(sym, newval))
548 } while (oldval != newval);
552 bool sym_string_valid(struct symbol *sym, const char *str)
565 if (ch == '0' && *str != 0)
567 while ((ch = *str++)) {
573 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
579 } while ((ch = *str++));
595 bool sym_string_within_range(struct symbol *sym, const char *str)
597 struct property *prop;
602 return sym_string_valid(sym, str);
604 if (!sym_string_valid(sym, str))
606 prop = sym_get_range_prop(sym);
609 val = strtoll(str, NULL, 10);
610 return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
611 val <= sym_get_range_val(prop->expr->right.sym, 10);
613 if (!sym_string_valid(sym, str))
615 prop = sym_get_range_prop(sym);
618 val = strtoll(str, NULL, 16);
619 return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
620 val <= sym_get_range_val(prop->expr->right.sym, 16);
625 return sym_tristate_within_range(sym, yes);
627 return sym_tristate_within_range(sym, mod);
629 return sym_tristate_within_range(sym, no);
637 bool sym_set_string_value(struct symbol *sym, const char *newval)
648 return sym_set_tristate_value(sym, yes);
650 return sym_set_tristate_value(sym, mod);
652 return sym_set_tristate_value(sym, no);
659 if (!sym_string_within_range(sym, newval))
662 if (!(sym->flags & SYMBOL_DEF_USER)) {
663 sym->flags |= SYMBOL_DEF_USER;
664 sym_set_changed(sym);
667 oldval = sym->def[S_DEF_USER].val;
668 size = strlen(newval) + 1;
669 if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
671 sym->def[S_DEF_USER].val = val = xmalloc(size);
674 } else if (!oldval || strcmp(oldval, newval))
675 sym->def[S_DEF_USER].val = val = xmalloc(size);
680 free((void *)oldval);
681 sym_clear_all_valid();
687 * Find the default value associated to a symbol.
688 * For tristate symbol handle the modules=n case
689 * in which case "m" becomes "y".
690 * If the symbol does not have any default then fallback
691 * to the fixed default values.
693 const char *sym_get_string_default(struct symbol *sym)
695 struct property *prop;
700 sym_calc_visibility(sym);
701 sym_calc_value(modules_sym);
702 val = symbol_no.curr.tri;
703 str = symbol_empty.curr.val;
705 /* If symbol has a default value look it up */
706 prop = sym_get_default_prop(sym);
711 /* The visibility may limit the value from yes => mod */
712 val = EXPR_AND(expr_calc_value(prop->expr), prop->visible.tri);
716 * The following fails to handle the situation
717 * where a default value is further limited by
720 ds = prop_get_symbol(prop);
723 str = (const char *)ds->curr.val;
728 /* Handle select statements */
729 val = EXPR_OR(val, sym->rev_dep.tri);
731 /* transpose mod to yes if modules are not enabled */
733 if (!sym_is_choice_value(sym) && modules_sym->curr.tri == no)
736 /* transpose mod to yes if type is bool */
737 if (sym->type == S_BOOLEAN && val == mod)
745 case mod: return "m";
746 case yes: return "y";
760 const char *sym_get_string_value(struct symbol *sym)
767 val = sym_get_tristate_value(sym);
772 sym_calc_value(modules_sym);
773 return (modules_sym->curr.tri == no) ? "n" : "m";
781 return (const char *)sym->curr.val;
784 bool sym_is_changable(struct symbol *sym)
786 return sym->visible > sym->rev_dep.tri;
789 static unsigned strhash(const char *s)
792 unsigned hash = 2166136261U;
794 hash = (hash ^ *s) * 0x01000193;
798 struct symbol *sym_lookup(const char *name, int flags)
800 struct symbol *symbol;
805 if (name[0] && !name[1]) {
807 case 'y': return &symbol_yes;
808 case 'm': return &symbol_mod;
809 case 'n': return &symbol_no;
812 hash = strhash(name) % SYMBOL_HASHSIZE;
814 for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
816 !strcmp(symbol->name, name) &&
817 (flags ? symbol->flags & flags
818 : !(symbol->flags & (SYMBOL_CONST|SYMBOL_CHOICE))))
821 new_name = strdup(name);
827 symbol = xmalloc(sizeof(*symbol));
828 memset(symbol, 0, sizeof(*symbol));
829 symbol->name = new_name;
830 symbol->type = S_UNKNOWN;
831 symbol->flags |= flags;
833 symbol->next = symbol_hash[hash];
834 symbol_hash[hash] = symbol;
839 struct symbol *sym_find(const char *name)
841 struct symbol *symbol = NULL;
847 if (name[0] && !name[1]) {
849 case 'y': return &symbol_yes;
850 case 'm': return &symbol_mod;
851 case 'n': return &symbol_no;
854 hash = strhash(name) % SYMBOL_HASHSIZE;
856 for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
858 !strcmp(symbol->name, name) &&
859 !(symbol->flags & SYMBOL_CONST))
867 * Expand symbol's names embedded in the string given in argument. Symbols'
868 * name to be expanded shall be prefixed by a '$'. Unknown symbol expands to
871 const char *sym_expand_string_value(const char *in)
877 reslen = strlen(in) + 1;
878 res = xmalloc(reslen);
881 while ((src = strchr(in, '$'))) {
882 char *p, name[SYMBOL_MAXLENGTH];
883 const char *symval = "";
887 strncat(res, in, src - in);
891 while (isalnum(*src) || *src == '_')
895 sym = sym_find(name);
898 symval = sym_get_string_value(sym);
901 newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
902 if (newlen > reslen) {
904 res = realloc(res, reslen);
920 /* Compare matched symbols as thus:
921 * - first, symbols that match exactly
922 * - then, alphabetical sort
924 static int sym_rel_comp(const void *sym1, const void *sym2)
926 const struct sym_match *s1 = sym1;
927 const struct sym_match *s2 = sym2;
931 * - if matched length on symbol s1 is the length of that symbol,
932 * then this symbol should come first;
933 * - if matched length on symbol s2 is the length of that symbol,
934 * then this symbol should come first.
935 * Note: since the search can be a regexp, both symbols may match
936 * exactly; if this is the case, we can't decide which comes first,
937 * and we fallback to sorting alphabetically.
939 exact1 = (s1->eo - s1->so) == strlen(s1->sym->name);
940 exact2 = (s2->eo - s2->so) == strlen(s2->sym->name);
941 if (exact1 && !exact2)
943 if (!exact1 && exact2)
946 /* As a fallback, sort symbols alphabetically */
947 return strcmp(s1->sym->name, s2->sym->name);
950 struct symbol **sym_re_search(const char *pattern)
952 struct symbol *sym, **sym_arr = NULL;
953 struct sym_match *sym_match_arr = NULL;
960 if (strlen(pattern) == 0)
962 if (regcomp(&re, pattern, REG_EXTENDED|REG_ICASE))
965 for_all_symbols(i, sym) {
966 if (sym->flags & SYMBOL_CONST || !sym->name)
968 if (regexec(&re, sym->name, 1, match, 0))
973 tmp = realloc(sym_match_arr, size * sizeof(struct sym_match));
975 goto sym_re_search_free;
979 /* As regexec returned 0, we know we have a match, so
980 * we can use match[0].rm_[se]o without further checks
982 sym_match_arr[cnt].so = match[0].rm_so;
983 sym_match_arr[cnt].eo = match[0].rm_eo;
984 sym_match_arr[cnt++].sym = sym;
987 qsort(sym_match_arr, cnt, sizeof(struct sym_match), sym_rel_comp);
988 sym_arr = malloc((cnt+1) * sizeof(struct symbol));
990 goto sym_re_search_free;
991 for (i = 0; i < cnt; i++)
992 sym_arr[i] = sym_match_arr[i].sym;
996 /* sym_match_arr can be NULL if no match, but free(NULL) is OK */
1004 * When we check for recursive dependencies we use a stack to save
1005 * current state so we can print out relevant info to user.
1006 * The entries are located on the call stack so no need to free memory.
1007 * Note insert() remove() must always match to properly clear the stack.
1009 static struct dep_stack {
1010 struct dep_stack *prev, *next;
1012 struct property *prop;
1016 static void dep_stack_insert(struct dep_stack *stack, struct symbol *sym)
1018 memset(stack, 0, sizeof(*stack));
1020 check_top->next = stack;
1021 stack->prev = check_top;
1026 static void dep_stack_remove(void)
1028 check_top = check_top->prev;
1030 check_top->next = NULL;
1034 * Called when we have detected a recursive dependency.
1035 * check_top point to the top of the stact so we use
1036 * the ->prev pointer to locate the bottom of the stack.
1038 static void sym_check_print_recursive(struct symbol *last_sym)
1040 struct dep_stack *stack;
1041 struct symbol *sym, *next_sym;
1042 struct menu *menu = NULL;
1043 struct property *prop;
1044 struct dep_stack cv_stack;
1046 if (sym_is_choice_value(last_sym)) {
1047 dep_stack_insert(&cv_stack, last_sym);
1048 last_sym = prop_get_symbol(sym_get_choice_prop(last_sym));
1051 for (stack = check_top; stack != NULL; stack = stack->prev)
1052 if (stack->sym == last_sym)
1055 fprintf(stderr, "unexpected recursive dependency error\n");
1059 for (; stack; stack = stack->next) {
1061 next_sym = stack->next ? stack->next->sym : last_sym;
1064 prop = stack->sym->prop;
1066 /* for choice values find the menu entry (used below) */
1067 if (sym_is_choice(sym) || sym_is_choice_value(sym)) {
1068 for (prop = sym->prop; prop; prop = prop->next) {
1074 if (stack->sym == last_sym)
1075 fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
1076 prop->file->name, prop->lineno);
1078 fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
1079 prop->file->name, prop->lineno,
1080 sym->name ? sym->name : "<choice>",
1081 prop_get_type_name(prop->type),
1082 next_sym->name ? next_sym->name : "<choice>");
1083 } else if (stack->prop) {
1084 fprintf(stderr, "%s:%d:\tsymbol %s depends on %s\n",
1085 prop->file->name, prop->lineno,
1086 sym->name ? sym->name : "<choice>",
1087 next_sym->name ? next_sym->name : "<choice>");
1088 } else if (sym_is_choice(sym)) {
1089 fprintf(stderr, "%s:%d:\tchoice %s contains symbol %s\n",
1090 menu->file->name, menu->lineno,
1091 sym->name ? sym->name : "<choice>",
1092 next_sym->name ? next_sym->name : "<choice>");
1093 } else if (sym_is_choice_value(sym)) {
1094 fprintf(stderr, "%s:%d:\tsymbol %s is part of choice %s\n",
1095 menu->file->name, menu->lineno,
1096 sym->name ? sym->name : "<choice>",
1097 next_sym->name ? next_sym->name : "<choice>");
1099 fprintf(stderr, "%s:%d:\tsymbol %s is selected by %s\n",
1100 prop->file->name, prop->lineno,
1101 sym->name ? sym->name : "<choice>",
1102 next_sym->name ? next_sym->name : "<choice>");
1106 if (check_top == &cv_stack)
1110 static struct symbol *sym_check_expr_deps(struct expr *e)
1119 sym = sym_check_expr_deps(e->left.expr);
1122 return sym_check_expr_deps(e->right.expr);
1124 return sym_check_expr_deps(e->left.expr);
1127 sym = sym_check_deps(e->left.sym);
1130 return sym_check_deps(e->right.sym);
1132 return sym_check_deps(e->left.sym);
1136 printf("Oops! How to check %d?\n", e->type);
1140 /* return NULL when dependencies are OK */
1141 static struct symbol *sym_check_sym_deps(struct symbol *sym)
1143 struct symbol *sym2;
1144 struct property *prop;
1145 struct dep_stack stack;
1147 dep_stack_insert(&stack, sym);
1149 sym2 = sym_check_expr_deps(sym->rev_dep.expr);
1153 for (prop = sym->prop; prop; prop = prop->next) {
1154 if (prop->type == P_CHOICE || prop->type == P_SELECT)
1157 sym2 = sym_check_expr_deps(prop->visible.expr);
1160 if (prop->type != P_DEFAULT || sym_is_choice(sym))
1162 stack.expr = prop->expr;
1163 sym2 = sym_check_expr_deps(prop->expr);
1175 static struct symbol *sym_check_choice_deps(struct symbol *choice)
1177 struct symbol *sym, *sym2;
1178 struct property *prop;
1180 struct dep_stack stack;
1182 dep_stack_insert(&stack, choice);
1184 prop = sym_get_choice_prop(choice);
1185 expr_list_for_each_sym(prop->expr, e, sym)
1186 sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
1188 choice->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
1189 sym2 = sym_check_sym_deps(choice);
1190 choice->flags &= ~SYMBOL_CHECK;
1194 expr_list_for_each_sym(prop->expr, e, sym) {
1195 sym2 = sym_check_sym_deps(sym);
1200 expr_list_for_each_sym(prop->expr, e, sym)
1201 sym->flags &= ~SYMBOL_CHECK;
1203 if (sym2 && sym_is_choice_value(sym2) &&
1204 prop_get_symbol(sym_get_choice_prop(sym2)) == choice)
1212 struct symbol *sym_check_deps(struct symbol *sym)
1214 struct symbol *sym2;
1215 struct property *prop;
1217 if (sym->flags & SYMBOL_CHECK) {
1218 sym_check_print_recursive(sym);
1221 if (sym->flags & SYMBOL_CHECKED)
1224 if (sym_is_choice_value(sym)) {
1225 struct dep_stack stack;
1227 /* for choice groups start the check with main choice symbol */
1228 dep_stack_insert(&stack, sym);
1229 prop = sym_get_choice_prop(sym);
1230 sym2 = sym_check_deps(prop_get_symbol(prop));
1232 } else if (sym_is_choice(sym)) {
1233 sym2 = sym_check_choice_deps(sym);
1235 sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
1236 sym2 = sym_check_sym_deps(sym);
1237 sym->flags &= ~SYMBOL_CHECK;
1240 if (sym2 && sym2 == sym)
1246 struct property *prop_alloc(enum prop_type type, struct symbol *sym)
1248 struct property *prop;
1249 struct property **propp;
1251 prop = xmalloc(sizeof(*prop));
1252 memset(prop, 0, sizeof(*prop));
1255 prop->file = current_file;
1256 prop->lineno = zconf_lineno();
1258 /* append property to the prop list of symbol */
1260 for (propp = &sym->prop; *propp; propp = &(*propp)->next)
1268 struct symbol *prop_get_symbol(struct property *prop)
1270 if (prop->expr && (prop->expr->type == E_SYMBOL ||
1271 prop->expr->type == E_LIST))
1272 return prop->expr->left.sym;
1276 const char *prop_get_type_name(enum prop_type type)
1303 static void prop_add_env(const char *env)
1305 struct symbol *sym, *sym2;
1306 struct property *prop;
1309 sym = current_entry->sym;
1310 sym->flags |= SYMBOL_AUTO;
1311 for_all_properties(sym, prop, P_ENV) {
1312 sym2 = prop_get_symbol(prop);
1313 if (strcmp(sym2->name, env))
1314 menu_warn(current_entry, "redefining environment symbol from %s",
1319 prop = prop_alloc(P_ENV, sym);
1320 prop->expr = expr_alloc_symbol(sym_lookup(env, SYMBOL_CONST));
1322 sym_env_list = expr_alloc_one(E_LIST, sym_env_list);
1323 sym_env_list->right.sym = sym;
1327 sym_add_default(sym, p);
1329 menu_warn(current_entry, "environment variable %s undefined", env);