39 static void sym_add_default(struct symbol *sym, const char *def)  in sym_add_default()  argument
41 	struct property *prop = prop_alloc(P_DEFAULT, sym);  in sym_add_default()
48 	struct symbol *sym;  in sym_init()  local
58 	sym = sym_lookup("UNAME_RELEASE", 0);  in sym_init()
59 	sym->type = S_STRING;  in sym_init()
60 	sym->flags |= SYMBOL_AUTO;  in sym_init()
61 	sym_add_default(sym, uts.release);  in sym_init()
64 enum symbol_type sym_get_type(struct symbol *sym)  in sym_get_type()  argument
66 	enum symbol_type type = sym->type;  in sym_get_type()
69 		if (sym_is_choice_value(sym) && sym->visible == yes)  in sym_get_type()
98 struct property *sym_get_choice_prop(struct symbol *sym)  in sym_get_choice_prop()  argument
102 	for_all_choices(sym, prop)  in sym_get_choice_prop()
107 struct property *sym_get_env_prop(struct symbol *sym)  in sym_get_env_prop()  argument
111 	for_all_properties(sym, prop, P_ENV)  in sym_get_env_prop()
116 struct property *sym_get_default_prop(struct symbol *sym)  in sym_get_default_prop()  argument
120 	for_all_defaults(sym, prop) {  in sym_get_default_prop()
128 static struct property *sym_get_range_prop(struct symbol *sym)  in sym_get_range_prop()  argument
132 	for_all_properties(sym, prop, P_RANGE) {  in sym_get_range_prop()
140 static int sym_get_range_val(struct symbol *sym, int base)  in sym_get_range_val()  argument
142 	sym_calc_value(sym);  in sym_get_range_val()
143 	switch (sym->type) {  in sym_get_range_val()
153 	return strtol(sym->curr.val, NULL, base);  in sym_get_range_val()
156 static void sym_validate_range(struct symbol *sym)  in sym_validate_range()  argument
162 	switch (sym->type) {  in sym_validate_range()
172 	prop = sym_get_range_prop(sym);  in sym_validate_range()
175 	val = strtol(sym->curr.val, NULL, base);  in sym_validate_range()
176 	val2 = sym_get_range_val(prop->expr->left.sym, base);  in sym_validate_range()
178 		val2 = sym_get_range_val(prop->expr->right.sym, base);  in sym_validate_range()
182 	if (sym->type == S_INT)  in sym_validate_range()
186 	sym->curr.val = strdup(str);  in sym_validate_range()
189 static void sym_calc_visibility(struct symbol *sym)  in sym_calc_visibility()  argument
196 	for_all_prompts(sym, prop) {  in sym_calc_visibility()
200 	if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))  in sym_calc_visibility()
202 	if (sym->visible != tri) {  in sym_calc_visibility()
203 		sym->visible = tri;  in sym_calc_visibility()
204 		sym_set_changed(sym);  in sym_calc_visibility()
206 	if (sym_is_choice_value(sym))  in sym_calc_visibility()
210 	if (sym->dir_dep.expr)  in sym_calc_visibility()
211 		tri = expr_calc_value(sym->dir_dep.expr);  in sym_calc_visibility()
214 	if (sym->dir_dep.tri != tri) {  in sym_calc_visibility()
215 		sym->dir_dep.tri = tri;  in sym_calc_visibility()
216 		sym_set_changed(sym);  in sym_calc_visibility()
219 	if (sym->rev_dep.expr)  in sym_calc_visibility()
220 		tri = expr_calc_value(sym->rev_dep.expr);  in sym_calc_visibility()
221 	if (tri == mod && sym_get_type(sym) == S_BOOLEAN)  in sym_calc_visibility()
223 	if (sym->rev_dep.tri != tri) {  in sym_calc_visibility()
224 		sym->rev_dep.tri = tri;  in sym_calc_visibility()
225 		sym_set_changed(sym);  in sym_calc_visibility()
235 struct symbol *sym_choice_default(struct symbol *sym)  in sym_choice_default()  argument
242 	for_all_defaults(sym, prop) {  in sym_choice_default()
252 	prop = sym_get_choice_prop(sym);  in sym_choice_default()
261 static struct symbol *sym_calc_choice(struct symbol *sym)  in sym_calc_choice()  argument
268 	prop = sym_get_choice_prop(sym);  in sym_calc_choice()
273 	def_sym = sym->def[S_DEF_USER].val;  in sym_calc_choice()
277 	def_sym = sym_choice_default(sym);  in sym_calc_choice()
281 		sym->curr.tri = no;  in sym_calc_choice()
286 void sym_calc_value(struct symbol *sym)  in sym_calc_value()  argument
292 	if (!sym)  in sym_calc_value()
295 	if (sym->flags & SYMBOL_VALID)  in sym_calc_value()
297 	sym->flags |= SYMBOL_VALID;  in sym_calc_value()
299 	oldval = sym->curr;  in sym_calc_value()
301 	switch (sym->type) {  in sym_calc_value()
312 		sym->curr.val = sym->name;  in sym_calc_value()
313 		sym->curr.tri = no;  in sym_calc_value()
316 	if (!sym_is_choice_value(sym))  in sym_calc_value()
317 		sym->flags &= ~SYMBOL_WRITE;  in sym_calc_value()
319 	sym_calc_visibility(sym);  in sym_calc_value()
322 	sym->curr = newval;  in sym_calc_value()
324 	switch (sym_get_type(sym)) {  in sym_calc_value()
327 		if (sym_is_choice_value(sym) && sym->visible == yes) {  in sym_calc_value()
328 			prop = sym_get_choice_prop(sym);  in sym_calc_value()
329 			newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;  in sym_calc_value()
331 			if (sym->visible != no) {  in sym_calc_value()
335 				sym->flags |= SYMBOL_WRITE;  in sym_calc_value()
336 				if (sym_has_value(sym)) {  in sym_calc_value()
337 					newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,  in sym_calc_value()
338 							      sym->visible);  in sym_calc_value()
342 			if (sym->rev_dep.tri != no)  in sym_calc_value()
343 				sym->flags |= SYMBOL_WRITE;  in sym_calc_value()
344 			if (!sym_is_choice(sym)) {  in sym_calc_value()
345 				prop = sym_get_default_prop(sym);  in sym_calc_value()
347 					sym->flags |= SYMBOL_WRITE;  in sym_calc_value()
353 			if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {  in sym_calc_value()
355 				e = expr_simplify_unmet_dep(sym->rev_dep.expr,  in sym_calc_value()
356 				    sym->dir_dep.expr);  in sym_calc_value()
360 					sym->name);  in sym_calc_value()
361 				expr_fprint(sym->dir_dep.expr, stderr);  in sym_calc_value()
365 			newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);  in sym_calc_value()
367 		if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)  in sym_calc_value()
373 		if (sym->visible != no) {  in sym_calc_value()
374 			sym->flags |= SYMBOL_WRITE;  in sym_calc_value()
375 			if (sym_has_value(sym)) {  in sym_calc_value()
376 				newval.val = sym->def[S_DEF_USER].val;  in sym_calc_value()
380 		prop = sym_get_default_prop(sym);  in sym_calc_value()
384 				sym->flags |= SYMBOL_WRITE;  in sym_calc_value()
394 	sym->curr = newval;  in sym_calc_value()
395 	if (sym_is_choice(sym) && newval.tri == yes)  in sym_calc_value()
396 		sym->curr.val = sym_calc_choice(sym);  in sym_calc_value()
397 	sym_validate_range(sym);  in sym_calc_value()
399 	if (memcmp(&oldval, &sym->curr, sizeof(oldval))) {  in sym_calc_value()
400 		sym_set_changed(sym);  in sym_calc_value()
401 		if (modules_sym == sym) {  in sym_calc_value()
407 	if (sym_is_choice(sym)) {  in sym_calc_value()
410 		prop = sym_get_choice_prop(sym);  in sym_calc_value()
412 			if ((sym->flags & SYMBOL_WRITE) &&  in sym_calc_value()
415 			if (sym->flags & SYMBOL_CHANGED)  in sym_calc_value()
420 	if (sym->flags & SYMBOL_AUTO)  in sym_calc_value()
421 		sym->flags &= ~SYMBOL_WRITE;  in sym_calc_value()
426 	struct symbol *sym;  in sym_clear_all_valid()  local
429 	for_all_symbols(i, sym)  in sym_clear_all_valid()
430 		sym->flags &= ~SYMBOL_VALID;  in sym_clear_all_valid()
436 void sym_set_changed(struct symbol *sym)  in sym_set_changed()  argument
440 	sym->flags |= SYMBOL_CHANGED;  in sym_set_changed()
441 	for (prop = sym->prop; prop; prop = prop->next) {  in sym_set_changed()
449 	struct symbol *sym;  in sym_set_all_changed()  local
452 	for_all_symbols(i, sym)  in sym_set_all_changed()
453 		sym_set_changed(sym);  in sym_set_all_changed()
456 bool sym_tristate_within_range(struct symbol *sym, tristate val)  in sym_tristate_within_range()  argument
458 	int type = sym_get_type(sym);  in sym_tristate_within_range()
460 	if (sym->visible == no)  in sym_tristate_within_range()
468 	if (sym->visible <= sym->rev_dep.tri)  in sym_tristate_within_range()
470 	if (sym_is_choice_value(sym) && sym->visible == yes)  in sym_tristate_within_range()
472 	return val >= sym->rev_dep.tri && val <= sym->visible;  in sym_tristate_within_range()
475 bool sym_set_tristate_value(struct symbol *sym, tristate val)  in sym_set_tristate_value()  argument
477 	tristate oldval = sym_get_tristate_value(sym);  in sym_set_tristate_value()
479 	if (oldval != val && !sym_tristate_within_range(sym, val))  in sym_set_tristate_value()
482 	if (!(sym->flags & SYMBOL_DEF_USER)) {  in sym_set_tristate_value()
483 		sym->flags |= SYMBOL_DEF_USER;  in sym_set_tristate_value()
484 		sym_set_changed(sym);  in sym_set_tristate_value()
490 	if (sym_is_choice_value(sym) && val == yes) {  in sym_set_tristate_value()
491 		struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));  in sym_set_tristate_value()
495 		cs->def[S_DEF_USER].val = sym;  in sym_set_tristate_value()
499 			if (e->right.sym->visible != no)  in sym_set_tristate_value()
500 				e->right.sym->flags |= SYMBOL_DEF_USER;  in sym_set_tristate_value()
504 	sym->def[S_DEF_USER].tri = val;  in sym_set_tristate_value()
511 tristate sym_toggle_tristate_value(struct symbol *sym)  in sym_toggle_tristate_value()  argument
515 	oldval = newval = sym_get_tristate_value(sym);  in sym_toggle_tristate_value()
528 		if (sym_set_tristate_value(sym, newval))  in sym_toggle_tristate_value()
534 bool sym_string_valid(struct symbol *sym, const char *str)  in sym_string_valid()  argument
538 	switch (sym->type) {  in sym_string_valid()
577 bool sym_string_within_range(struct symbol *sym, const char *str)  in sym_string_within_range()  argument
582 	switch (sym->type) {  in sym_string_within_range()
584 		return sym_string_valid(sym, str);  in sym_string_within_range()
586 		if (!sym_string_valid(sym, str))  in sym_string_within_range()
588 		prop = sym_get_range_prop(sym);  in sym_string_within_range()
592 		return val >= sym_get_range_val(prop->expr->left.sym, 10) &&  in sym_string_within_range()
593 		       val <= sym_get_range_val(prop->expr->right.sym, 10);  in sym_string_within_range()
595 		if (!sym_string_valid(sym, str))  in sym_string_within_range()
597 		prop = sym_get_range_prop(sym);  in sym_string_within_range()
601 		return val >= sym_get_range_val(prop->expr->left.sym, 16) &&  in sym_string_within_range()
602 		       val <= sym_get_range_val(prop->expr->right.sym, 16);  in sym_string_within_range()
607 			return sym_tristate_within_range(sym, yes);  in sym_string_within_range()
609 			return sym_tristate_within_range(sym, mod);  in sym_string_within_range()
611 			return sym_tristate_within_range(sym, no);  in sym_string_within_range()
619 bool sym_set_string_value(struct symbol *sym, const char *newval)  in sym_set_string_value()  argument
625 	switch (sym->type) {  in sym_set_string_value()
630 			return sym_set_tristate_value(sym, yes);  in sym_set_string_value()
632 			return sym_set_tristate_value(sym, mod);  in sym_set_string_value()
634 			return sym_set_tristate_value(sym, no);  in sym_set_string_value()
641 	if (!sym_string_within_range(sym, newval))  in sym_set_string_value()
644 	if (!(sym->flags & SYMBOL_DEF_USER)) {  in sym_set_string_value()
645 		sym->flags |= SYMBOL_DEF_USER;  in sym_set_string_value()
646 		sym_set_changed(sym);  in sym_set_string_value()
649 	oldval = sym->def[S_DEF_USER].val;  in sym_set_string_value()
651 	if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {  in sym_set_string_value()
653 		sym->def[S_DEF_USER].val = val = malloc(size);  in sym_set_string_value()
657 		sym->def[S_DEF_USER].val = val = malloc(size);  in sym_set_string_value()
675 const char *sym_get_string_default(struct symbol *sym)  in sym_get_string_default()  argument
682 	sym_calc_visibility(sym);  in sym_get_string_default()
688 	prop = sym_get_default_prop(sym);  in sym_get_string_default()
690 		switch (sym->type) {  in sym_get_string_default()
711 	val = EXPR_OR(val, sym->rev_dep.tri);  in sym_get_string_default()
715 		if (!sym_is_choice_value(sym) && modules_sym->curr.tri == no)  in sym_get_string_default()
719 	if (sym->type == S_BOOLEAN && val == mod)  in sym_get_string_default()
722 	switch (sym->type) {  in sym_get_string_default()
742 const char *sym_get_string_value(struct symbol *sym)  in sym_get_string_value()  argument
746 	switch (sym->type) {  in sym_get_string_value()
749 		val = sym_get_tristate_value(sym);  in sym_get_string_value()
762 	return (const char *)sym->curr.val;  in sym_get_string_value()
765 bool sym_is_changable(struct symbol *sym)  in sym_is_changable()  argument
767 	return sym->visible > sym->rev_dep.tri;  in sym_is_changable()
865 		struct symbol *sym;  in sym_expand_string_value()  local
876 		sym = sym_find(name);  in sym_expand_string_value()
877 		if (sym != NULL) {  in sym_expand_string_value()
878 			sym_calc_value(sym);  in sym_expand_string_value()
879 			symval = sym_get_string_value(sym);  in sym_expand_string_value()
898 	struct symbol *sym, **sym_arr = NULL;  in sym_re_search()  local
909 	for_all_symbols(i, sym) {  in sym_re_search()
910 		if (sym->flags & SYMBOL_CONST || !sym->name)  in sym_re_search()
912 		if (regexec(&re, sym->name, 0, NULL, 0))  in sym_re_search()
923 		sym_calc_value(sym);  in sym_re_search()
924 		sym_arr[cnt++] = sym;  in sym_re_search()
941 	struct symbol *sym;  member
946 static void dep_stack_insert(struct dep_stack *stack, struct symbol *sym)  in dep_stack_insert()  argument
952 	stack->sym = sym;  in dep_stack_insert()
971 	struct symbol *sym, *next_sym;  in sym_check_print_recursive()  local
982 		if (stack->sym == last_sym)  in sym_check_print_recursive()
990 		sym = stack->sym;  in sym_check_print_recursive()
991 		next_sym = stack->next ? stack->next->sym : last_sym;  in sym_check_print_recursive()
994 			prop = stack->sym->prop;  in sym_check_print_recursive()
997 		if (sym_is_choice(sym) || sym_is_choice_value(sym)) {  in sym_check_print_recursive()
998 			for (prop = sym->prop; prop; prop = prop->next) {  in sym_check_print_recursive()
1004 		if (stack->sym == last_sym)  in sym_check_print_recursive()
1010 				sym->name ? sym->name : "<choice>",  in sym_check_print_recursive()
1016 				sym->name ? sym->name : "<choice>",  in sym_check_print_recursive()
1018 		} else if (sym_is_choice(sym)) {  in sym_check_print_recursive()
1021 				sym->name ? sym->name : "<choice>",  in sym_check_print_recursive()
1023 		} else if (sym_is_choice_value(sym)) {  in sym_check_print_recursive()
1026 				sym->name ? sym->name : "<choice>",  in sym_check_print_recursive()
1031 				sym->name ? sym->name : "<choice>",  in sym_check_print_recursive()
1042 	struct symbol *sym;  in sym_check_expr_deps()  local
1049 		sym = sym_check_expr_deps(e->left.expr);  in sym_check_expr_deps()
1050 		if (sym)  in sym_check_expr_deps()
1051 			return sym;  in sym_check_expr_deps()
1057 		sym = sym_check_deps(e->left.sym);  in sym_check_expr_deps()
1058 		if (sym)  in sym_check_expr_deps()
1059 			return sym;  in sym_check_expr_deps()
1060 		return sym_check_deps(e->right.sym);  in sym_check_expr_deps()
1062 		return sym_check_deps(e->left.sym);  in sym_check_expr_deps()
1071 static struct symbol *sym_check_sym_deps(struct symbol *sym)  in sym_check_sym_deps()  argument
1077 	dep_stack_insert(&stack, sym);  in sym_check_sym_deps()
1079 	sym2 = sym_check_expr_deps(sym->rev_dep.expr);  in sym_check_sym_deps()
1083 	for (prop = sym->prop; prop; prop = prop->next) {  in sym_check_sym_deps()
1090 		if (prop->type != P_DEFAULT || sym_is_choice(sym))  in sym_check_sym_deps()
1107 	struct symbol *sym, *sym2;  in sym_check_choice_deps()  local
1115 	expr_list_for_each_sym(prop->expr, e, sym)  in sym_check_choice_deps()
1116 		sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);  in sym_check_choice_deps()
1124 	expr_list_for_each_sym(prop->expr, e, sym) {  in sym_check_choice_deps()
1125 		sym2 = sym_check_sym_deps(sym);  in sym_check_choice_deps()
1130 	expr_list_for_each_sym(prop->expr, e, sym)  in sym_check_choice_deps()
1131 		sym->flags &= ~SYMBOL_CHECK;  in sym_check_choice_deps()
1142 struct symbol *sym_check_deps(struct symbol *sym)  in sym_check_deps()  argument
1147 	if (sym->flags & SYMBOL_CHECK) {  in sym_check_deps()
1148 		sym_check_print_recursive(sym);  in sym_check_deps()
1149 		return sym;  in sym_check_deps()
1151 	if (sym->flags & SYMBOL_CHECKED)  in sym_check_deps()
1154 	if (sym_is_choice_value(sym)) {  in sym_check_deps()
1158 		dep_stack_insert(&stack, sym);  in sym_check_deps()
1159 		prop = sym_get_choice_prop(sym);  in sym_check_deps()
1162 	} else if (sym_is_choice(sym)) {  in sym_check_deps()
1163 		sym2 = sym_check_choice_deps(sym);  in sym_check_deps()
1165 		sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);  in sym_check_deps()
1166 		sym2 = sym_check_sym_deps(sym);  in sym_check_deps()
1167 		sym->flags &= ~SYMBOL_CHECK;  in sym_check_deps()
1170 	if (sym2 && sym2 == sym)  in sym_check_deps()
1176 struct property *prop_alloc(enum prop_type type, struct symbol *sym)  in prop_alloc()  argument
1184 	prop->sym = sym;  in prop_alloc()
1189 	if (sym) {  in prop_alloc()
1190 		for (propp = &sym->prop; *propp; propp = &(*propp)->next)  in prop_alloc()
1202 		return prop->expr->left.sym;  in prop_get_symbol()
1235 	struct symbol *sym, *sym2;  in prop_add_env()  local
1239 	sym = current_entry->sym;  in prop_add_env()
1240 	sym->flags |= SYMBOL_AUTO;  in prop_add_env()
1241 	for_all_properties(sym, prop, P_ENV) {  in prop_add_env()
1249 	prop = prop_alloc(P_ENV, sym);  in prop_add_env()
1253 	sym_env_list->right.sym = sym;  in prop_add_env()
1257 		sym_add_default(sym, p);  in prop_add_env()