1 files changed, 23 insertions, 12 deletions

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 59c88d2..845d8a3 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -1,618 +1,629 @@
 /*
  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
  * Released under the terms of the GNU GPL v2.0.
  */
 
 #include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/utsname.h>
 
 #define LKC_DIRECT_LINK
 #include "lkc.h"
 
 struct symbol symbol_yes = {
 	name: "y",
 	curr: { "y", yes },
 	flags: SYMBOL_YES|SYMBOL_VALID,
 }, symbol_mod = {
 	name: "m",
 	curr: { "m", mod },
 	flags: SYMBOL_MOD|SYMBOL_VALID,
 }, symbol_no = {
 	name: "n",
 	curr: { "n", no },
 	flags: SYMBOL_NO|SYMBOL_VALID,
 }, symbol_empty = {
 	name: "",
 	curr: { "", no },
 	flags: SYMBOL_VALID,
 };
 
 int sym_change_count;
 struct symbol *modules_sym;
 
 void sym_add_default(struct symbol *sym, const char *def)
 {
 	struct property *prop = create_prop(P_DEFAULT);
 	struct property **propp;
 
 	prop->sym = sym;
 	prop->def = sym_lookup(def, 1);
 
 	/* append property to the prop list of symbol */
 	if (prop->sym) {
 		for (propp = &prop->sym->prop; *propp; propp = &(*propp)->next)
 			;
 		*propp = prop;
 	}
 }
 
 void sym_init(void)
 {
 	struct symbol *sym;
 	struct utsname uts;
 	char *p;
 	static bool inited = false;
 
 	if (inited)
 		return;
 	inited = true;
 
 	uname(&uts);
 
 	sym = sym_lookup("ARCH", 0);
 	sym->type = S_STRING;
 	sym->flags |= SYMBOL_AUTO;
 	p = getenv("ARCH");
 	if (p)
 		sym_add_default(sym, p);
 
 	sym = sym_lookup("KERNELRELEASE", 0);
 	sym->type = S_STRING;
 	sym->flags |= SYMBOL_AUTO;
 	p = getenv("KERNELRELEASE");
 	if (p)
 		sym_add_default(sym, p);
 
 	sym = sym_lookup("UNAME_RELEASE", 0);
 	sym->type = S_STRING;
 	sym->flags |= SYMBOL_AUTO;
 	sym_add_default(sym, uts.release);
 }
 
 int sym_get_type(struct symbol *sym)
 {
 	int type = sym->type;
 	if (type == S_TRISTATE) {
 		if (sym_is_choice_value(sym) && sym->visible == yes)
 			type = S_BOOLEAN;
 		else {
 			sym_calc_value(modules_sym);
 			if (S_TRI(modules_sym->curr) == no)
 				type = S_BOOLEAN;
 		}
 	}
 	return type;
 }
 
 const char *sym_type_name(int type)
 {
 	switch (type) {
 	case S_BOOLEAN:
 		return "boolean";
 	case S_TRISTATE:
 		return "tristate";
 	case S_INT:
 		return "integer";
 	case S_HEX:
 		return "hex";
 	case S_STRING:
 		return "string";
 	case S_UNKNOWN:
 		return "unknown";
 	}
 	return "???";
 }
 
 struct property *sym_get_choice_prop(struct symbol *sym)
 {
 	struct property *prop;
 
 	for_all_choices(sym, prop)
 		return prop;
 	return NULL;
 }
 
 struct property *sym_get_default_prop(struct symbol *sym)
 {
 	struct property *prop;
 	tristate visible;
 
 	for_all_defaults(sym, prop) {
 		visible = E_CALC(prop->visible);
 		if (visible != no)
 			return prop;
 	}
 	return NULL;
 }
 
 void sym_calc_visibility(struct symbol *sym)
 {
 	struct property *prop;
 	tristate visible, oldvisible;
 
 	/* any prompt visible? */
 	oldvisible = sym->visible;
 	visible = no;
 	for_all_prompts(sym, prop)
 		visible = E_OR(visible, E_CALC(prop->visible));
 	if (oldvisible != visible) {
 		sym->visible = visible;
-		sym->flags |= SYMBOL_CHANGED;
+		sym_set_changed(sym);
 	}
 }
 
 void sym_calc_value(struct symbol *sym)
 {
 	struct symbol_value newval, oldval;
 	struct property *prop, *def_prop;
 	struct symbol *def_sym;
 	struct expr *e;
 
 	if (sym->flags & SYMBOL_VALID)
 		return;
 
 	oldval = sym->curr;
 
 	switch (sym->type) {
 	case S_INT:
 	case S_HEX:
 	case S_STRING:
 		newval = symbol_empty.curr;
 		break;
 	case S_BOOLEAN:
 	case S_TRISTATE:
 		newval = symbol_no.curr;
 		break;
 	default:
 		S_VAL(newval) = sym->name;
 		S_TRI(newval) = no;
 		if (sym->flags & SYMBOL_CONST) {
 			goto out;
 		}
 		//newval = symbol_empty.curr;
 		// generate warning somewhere here later
 		//S_TRI(newval) = yes;
 		goto out;
 	}
 	sym->flags |= SYMBOL_VALID;
 	if (!sym_is_choice_value(sym))
 		sym->flags &= ~SYMBOL_WRITE;
 
 	sym_calc_visibility(sym);
 
 	/* set default if recursively called */
 	sym->curr = newval;
 
 	if (sym->visible != no) {
 		sym->flags |= SYMBOL_WRITE;
 		if (!sym_has_value(sym)) {
 			if (!sym_is_choice(sym)) {
 				prop = sym_get_default_prop(sym);
 				if (prop) {
 					sym_calc_value(prop->def);
 					newval = prop->def->curr;
 				}
-			}
+			} else
+				S_TRI(newval) = S_TRI(sym->def);
 		} else
 			newval = sym->def;
 
 		S_TRI(newval) = E_AND(S_TRI(newval), sym->visible);
 		/* if the symbol is visible and not optionial,
 		 * possibly ignore old user choice. */
 		if (!sym_is_optional(sym) && S_TRI(newval) == no)
 			S_TRI(newval) = sym->visible;
 		if (sym_is_choice_value(sym) && sym->visible == yes) {
 			prop = sym_get_choice_prop(sym);
 			S_TRI(newval) = (S_VAL(prop->def->curr) == sym) ? yes : no;
 		}
 	} else {
 		prop = sym_get_default_prop(sym);
 		if (prop) {
 			sym->flags |= SYMBOL_WRITE;
 			sym_calc_value(prop->def);
 			newval = prop->def->curr;
 		}
 	}
 
 	switch (sym_get_type(sym)) {
 	case S_TRISTATE:
 		if (S_TRI(newval) != mod)
 			break;
 		sym_calc_value(modules_sym);
 		if (S_TRI(modules_sym->curr) == no)
 			S_TRI(newval) = yes;
 		break;
 	case S_BOOLEAN:
 		if (S_TRI(newval) == mod)
 			S_TRI(newval) = yes;
 	}
 
 out:
 	sym->curr = newval;
 
 	if (sym_is_choice(sym) && S_TRI(newval) == yes) {
 		def_sym = S_VAL(sym->def);
 		if (def_sym) {
 			sym_calc_visibility(def_sym);
 			if (def_sym->visible == no)
 				def_sym = NULL;
 		}
 		if (!def_sym) {
 			for_all_defaults(sym, def_prop) {
 				if (E_CALC(def_prop->visible) == no)
 					continue;
 				sym_calc_visibility(def_prop->def);
 				if (def_prop->def->visible != no) {
 					def_sym = def_prop->def;
 					break;
 				}
 			}
 		}
 
 		if (!def_sym) {
 			prop = sym_get_choice_prop(sym);
 			for (e = prop->dep; e; e = e->left.expr) {
 				sym_calc_visibility(e->right.sym);
 				if (e->right.sym->visible != no) {
 					def_sym = e->right.sym;
 					break;
 				}
 			}
 		}
 
 		S_VAL(newval) = def_sym;
 	}
 
 	if (memcmp(&oldval, &newval, sizeof(newval)))
-		sym->flags |= SYMBOL_CHANGED;
+		sym_set_changed(sym);
 	sym->curr = newval;
 
 	if (sym_is_choice(sym)) {
 		int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE);
 		prop = sym_get_choice_prop(sym);
-		for (e = prop->dep; e; e = e->left.expr)
+		for (e = prop->dep; e; e = e->left.expr) {
 			e->right.sym->flags |= flags;
+			if (flags & SYMBOL_CHANGED)
+				sym_set_changed(e->right.sym);
+		}
 	}
 }
 
 void sym_clear_all_valid(void)
 {
 	struct symbol *sym;
 	int i;
 
 	for_all_symbols(i, sym)
 		sym->flags &= ~SYMBOL_VALID;
 	sym_change_count++;
 }
 
+void sym_set_changed(struct symbol *sym)
+{
+	struct property *prop;
+
+	sym->flags |= SYMBOL_CHANGED;
+	for (prop = sym->prop; prop; prop = prop->next) {
+		if (prop->menu)
+			prop->menu->flags |= MENU_CHANGED;
+	}
+}
+
 void sym_set_all_changed(void)
 {
 	struct symbol *sym;
 	int i;
 
 	for_all_symbols(i, sym)
-		sym->flags |= SYMBOL_CHANGED;
+		sym_set_changed(sym);
 }
 
 bool sym_tristate_within_range(struct symbol *sym, tristate val)
 {
 	int type = sym_get_type(sym);
 
 	if (sym->visible == no)
 		return false;
 
 	if (type != S_BOOLEAN && type != S_TRISTATE)
 		return false;
 
 	switch (val) {
 	case no:
 		if (sym_is_choice_value(sym) && sym->visible == yes)
 			return false;
 		return sym_is_optional(sym);
 	case mod:
 		if (sym_is_choice_value(sym) && sym->visible == yes)
 			return false;
 		return type == S_TRISTATE;
 	case yes:
 		return type == S_BOOLEAN || sym->visible == yes;
 	}
 	return false;
 }
 
 bool sym_set_tristate_value(struct symbol *sym, tristate val)
 {
 	tristate oldval = sym_get_tristate_value(sym);
 
 	if (oldval != val && !sym_tristate_within_range(sym, val))
 		return false;
 
 	if (sym->flags & SYMBOL_NEW) {
 		sym->flags &= ~SYMBOL_NEW;
-		sym->flags |= SYMBOL_CHANGED;
+		sym_set_changed(sym);
 	}
 	if (sym_is_choice_value(sym) && val == yes) {
 		struct property *prop = sym_get_choice_prop(sym);
 
 		S_VAL(prop->def->def) = sym;
 		prop->def->flags &= ~SYMBOL_NEW;
 	}
 
 	S_TRI(sym->def) = val;
 	if (oldval != val) {
 		sym_clear_all_valid();
 		if (sym == modules_sym)
 			sym_set_all_changed();
 	}
 
 	return true;
 }
 
 tristate sym_toggle_tristate_value(struct symbol *sym)
 {
 	tristate oldval, newval;
 
 	oldval = newval = sym_get_tristate_value(sym);
 	do {
 		switch (newval) {
 		case no:
 			newval = mod;
 			break;
 		case mod:
 			newval = yes;
 			break;
 		case yes:
 			newval = no;
 			break;
 		}
 		if (sym_set_tristate_value(sym, newval))
 			break;
 	} while (oldval != newval);
 	return newval;
 }
 
 bool sym_string_valid(struct symbol *sym, const char *str)
 {
 	char ch;
 
 	switch (sym->type) {
 	case S_STRING:
 		return true;
 	case S_INT:
 		ch = *str++;
 		if (ch == '-')
 			ch = *str++;
 		if (!isdigit(ch))
 			return false;
 		if (ch == '0' && *str != 0)
 			return false;
 		while ((ch = *str++)) {
 			if (!isdigit(ch))
 				return false;
 		}
 		return true;
 	case S_HEX:
 		if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
 			str += 2;
 		ch = *str++;
 		do {
 			if (!isxdigit(ch))
 				return false;
 		} while ((ch = *str++));
 		return true;
 	case S_BOOLEAN:
 	case S_TRISTATE:
 		switch (str[0]) {
 		case 'y':
 		case 'Y':
 			return sym_tristate_within_range(sym, yes);
 		case 'm':
 		case 'M':
 			return sym_tristate_within_range(sym, mod);
 		case 'n':
 		case 'N':
 			return sym_tristate_within_range(sym, no);
 		}
 		return false;
 	default:
 		return false;
 	}
 }
 
 bool sym_set_string_value(struct symbol *sym, const char *newval)
 {
 	const char *oldval;
 	char *val;
 	int size;
 
 	switch (sym->type) {
 	case S_BOOLEAN:
 	case S_TRISTATE:
 		switch (newval[0]) {
 		case 'y':
 		case 'Y':
 			return sym_set_tristate_value(sym, yes);
 		case 'm':
 		case 'M':
 			return sym_set_tristate_value(sym, mod);
 		case 'n':
 		case 'N':
 			return sym_set_tristate_value(sym, no);
 		}
 		return false;
 	default:
 		;
 	}
 
 	if (!sym_string_valid(sym, newval))
 		return false;
 
 	if (sym->flags & SYMBOL_NEW) {
 		sym->flags &= ~SYMBOL_NEW;
-		sym->flags |= SYMBOL_CHANGED;
+		sym_set_changed(sym);
 	}
 
 	oldval = S_VAL(sym->def);
 	size = strlen(newval) + 1;
 	if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
 		size += 2;
 		S_VAL(sym->def) = val = malloc(size);
 		*val++ = '0';
 		*val++ = 'x';
 	} else if (!oldval || strcmp(oldval, newval))
 		S_VAL(sym->def) = val = malloc(size);
 	else
 		return true;
 
 	strcpy(val, newval);
 	free((void *)oldval);
 	sym_clear_all_valid();
 
 	return true;
 }
 
 const char *sym_get_string_value(struct symbol *sym)
 {
 	tristate val;
 
 	switch (sym->type) {
 	case S_BOOLEAN:
 	case S_TRISTATE:
 		val = sym_get_tristate_value(sym);
 		switch (val) {
 		case no:
 			return "n";
 		case mod:
 			return "m";
 		case yes:
 			return "y";
 		}
 		break;
 	default:
 		;
 	}
 	return (const char *)S_VAL(sym->curr);
 }
 
 bool sym_is_changable(struct symbol *sym)
 {
 	if (sym->visible == no)
 		return false;
 	/* at least 'n' and 'y'/'m' is selectable */
 	if (sym_is_optional(sym))
 		return true;
 	/* no 'n', so 'y' and 'm' must be selectable */
 	if (sym_get_type(sym) == S_TRISTATE && sym->visible == yes)
 		return true;
 	return false;
 }
 
 struct symbol *sym_lookup(const char *name, int isconst)
 {
 	struct symbol *symbol;
 	const char *ptr;
 	char *new_name;
 	int hash = 0;
 
-	//printf("lookup: %s -> ", name);
 	if (name) {
 		if (name[0] && !name[1]) {
 			switch (name[0]) {
 			case 'y': return &symbol_yes;
 			case 'm': return &symbol_mod;
 			case 'n': return &symbol_no;
 			}
 		}
 		for (ptr = name; *ptr; ptr++)
 			hash += *ptr;
 		hash &= 0xff;
 
 		for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
 			if (!strcmp(symbol->name, name)) {
 				if ((isconst && symbol->flags & SYMBOL_CONST) ||
-				    (!isconst && !(symbol->flags & SYMBOL_CONST))) {
-					//printf("h:%p\n", symbol);
+				    (!isconst && !(symbol->flags & SYMBOL_CONST)))
 					return symbol;
-				}
 			}
 		}
 		new_name = strdup(name);
 	} else {
 		new_name = NULL;
 		hash = 256;
 	}
 
 	symbol = malloc(sizeof(*symbol));
 	memset(symbol, 0, sizeof(*symbol));
 	symbol->name = new_name;
 	symbol->type = S_UNKNOWN;
 	symbol->flags = SYMBOL_NEW;
 	if (isconst)
 		symbol->flags |= SYMBOL_CONST;
 
 	symbol->next = symbol_hash[hash];
 	symbol_hash[hash] = symbol;
 
-	//printf("n:%p\n", symbol);
 	return symbol;
 }
 
 struct symbol *sym_find(const char *name)
 {
 	struct symbol *symbol = NULL;
 	const char *ptr;
 	int hash = 0;
 
 	if (!name)
 		return NULL;
 
 	if (name[0] && !name[1]) {
 		switch (name[0]) {
 		case 'y': return &symbol_yes;
 		case 'm': return &symbol_mod;
 		case 'n': return &symbol_no;
 		}
 	}
 	for (ptr = name; *ptr; ptr++)
 		hash += *ptr;
 	hash &= 0xff;
 
 	for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
 		if (!strcmp(symbol->name, name) &&
 		    !(symbol->flags & SYMBOL_CONST))
 				break;
 	}
 
 	return symbol;
 }
 
 const char *prop_get_type_name(enum prop_type type)
 {
 	switch (type) {
 	case P_PROMPT:
 		return "prompt";
 	case P_COMMENT:
 		return "comment";
 	case P_MENU:
 		return "menu";
 	case P_ROOTMENU:
 		return "rootmenu";
 	case P_DEFAULT:
 		return "default";
 	case P_CHOICE:
 		return "choice";
 	default:
 		return "unknown";
 	}
 }