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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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* Released under the terms of the GNU GPL v2.0.
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#define LKC_DIRECT_LINK
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static struct menu **last_entry_ptr;
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struct file *file_list;
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struct file *current_file;
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static void menu_warn(struct menu *menu, const char *fmt, ...)
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fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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static void prop_warn(struct property *prop, const char *fmt, ...)
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fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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current_entry = current_menu = &rootmenu;
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last_entry_ptr = &rootmenu.list;
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void menu_add_entry(struct symbol *sym)
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menu = malloc(sizeof(*menu));
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memset(menu, 0, sizeof(*menu));
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menu->parent = current_menu;
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menu->file = current_file;
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menu->lineno = zconf_lineno();
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*last_entry_ptr = menu;
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last_entry_ptr = &menu->next;
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void menu_end_entry(void)
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void menu_add_menu(void)
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current_menu = current_entry;
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last_entry_ptr = ¤t_entry->list;
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void menu_end_menu(void)
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last_entry_ptr = ¤t_menu->next;
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current_menu = current_menu->parent;
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struct expr *menu_check_dep(struct expr *e)
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e->left.expr = menu_check_dep(e->left.expr);
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e->left.expr = menu_check_dep(e->left.expr);
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e->right.expr = menu_check_dep(e->right.expr);
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/* change 'm' into 'm' && MODULES */
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if (e->left.sym == &symbol_mod)
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return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
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void menu_add_dep(struct expr *dep)
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current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
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void menu_set_type(int type)
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struct symbol *sym = current_entry->sym;
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if (sym->type == type)
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if (sym->type == S_UNKNOWN) {
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menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'\n",
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sym->name ? sym->name : "<choice>",
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sym_type_name(sym->type), sym_type_name(type));
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struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
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struct property *prop = prop_alloc(type, current_entry->sym);
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prop->menu = current_entry;
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prop->visible.expr = menu_check_dep(dep);
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if (current_entry->prompt)
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menu_warn(current_entry, "prompt redefined\n");
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current_entry->prompt = prop;
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void menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
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menu_add_prop(type, prompt, NULL, dep);
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void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
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menu_add_prop(type, NULL, expr, dep);
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void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
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menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
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void sym_check_prop(struct symbol *sym)
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struct property *prop;
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for (prop = sym->prop; prop; prop = prop->next) {
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switch (prop->type) {
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if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
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prop->expr->type != E_SYMBOL)
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"default for config symbol '%'"
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" must be a single symbol", sym->name);
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sym2 = prop_get_symbol(prop);
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if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
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"config symbol '%s' uses select, but is "
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"not boolean or tristate", sym->name);
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else if (sym2->type == S_UNKNOWN)
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"'select' used by config symbol '%s' "
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"refer to undefined symbol '%s'",
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sym->name, sym2->name);
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else if (sym2->type != S_BOOLEAN && sym2->type != S_TRISTATE)
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"'%s' has wrong type. 'select' only "
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"accept arguments of boolean and "
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"tristate type", sym2->name);
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if (sym->type != S_INT && sym->type != S_HEX)
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prop_warn(prop, "range is only allowed "
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"for int or hex symbols");
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if (!sym_string_valid(sym, prop->expr->left.sym->name) ||
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!sym_string_valid(sym, prop->expr->right.sym->name))
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prop_warn(prop, "range is invalid");
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void menu_finalize(struct menu *parent)
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struct menu *menu, *last_menu;
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struct property *prop;
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struct expr *parentdep, *basedep, *dep, *dep2, **ep;
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if (sym && sym_is_choice(sym)) {
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/* find the first choice value and find out choice type */
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for (menu = parent->list; menu; menu = menu->next) {
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current_entry = parent;
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menu_set_type(menu->sym->type);
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current_entry = menu;
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menu_set_type(sym->type);
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parentdep = expr_alloc_symbol(sym);
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} else if (parent->prompt)
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parentdep = parent->prompt->visible.expr;
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parentdep = parent->dep;
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for (menu = parent->list; menu; menu = menu->next) {
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basedep = expr_transform(menu->dep);
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basedep = expr_alloc_and(expr_copy(parentdep), basedep);
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basedep = expr_eliminate_dups(basedep);
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prop = menu->sym->prop;
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for (; prop; prop = prop->next) {
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if (prop->menu != menu)
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dep = expr_transform(prop->visible.expr);
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dep = expr_alloc_and(expr_copy(basedep), dep);
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dep = expr_eliminate_dups(dep);
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if (menu->sym && menu->sym->type != S_TRISTATE)
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dep = expr_trans_bool(dep);
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prop->visible.expr = dep;
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if (prop->type == P_SELECT) {
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struct symbol *es = prop_get_symbol(prop);
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es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
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expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
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for (menu = parent->list; menu; menu = menu->next)
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basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
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basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
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basedep = expr_eliminate_dups(expr_transform(basedep));
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for (menu = parent->next; menu; menu = menu->next) {
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dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
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if (!expr_contains_symbol(dep, sym))
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if (expr_depends_symbol(dep, sym))
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dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
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dep = expr_eliminate_dups(expr_transform(dep));
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dep2 = expr_copy(basedep);
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expr_eliminate_eq(&dep, &dep2);
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if (!expr_is_yes(dep2)) {
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menu->parent = parent;
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parent->list = parent->next;
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parent->next = last_menu->next;
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last_menu->next = NULL;
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for (menu = parent->list; menu; menu = menu->next) {
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if (sym && sym_is_choice(sym) && menu->sym) {
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menu->sym->flags |= SYMBOL_CHOICEVAL;
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menu_warn(menu, "choice value must have a prompt");
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for (prop = menu->sym->prop; prop; prop = prop->next) {
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if (prop->type == P_PROMPT && prop->menu != menu) {
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prop_warn(prop, "choice values "
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"currently only support a "
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if (prop->type == P_DEFAULT)
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prop_warn(prop, "defaults for choice "
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"values not supported");
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current_entry = menu;
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menu_set_type(sym->type);
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menu_add_symbol(P_CHOICE, sym, NULL);
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prop = sym_get_choice_prop(sym);
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for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
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*ep = expr_alloc_one(E_CHOICE, NULL);
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(*ep)->right.sym = menu->sym;
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if (menu->list && (!menu->prompt || !menu->prompt->text)) {
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for (last_menu = menu->list; ; last_menu = last_menu->next) {
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last_menu->parent = parent;
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if (!last_menu->next)
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last_menu->next = menu->next;
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menu->next = menu->list;
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if (sym && !(sym->flags & SYMBOL_WARNED)) {
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if (sym->type == S_UNKNOWN)
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menu_warn(parent, "config symbol defined "
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if (sym_is_choice(sym) && !parent->prompt)
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menu_warn(parent, "choice must have a prompt\n");
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/* Check properties connected to this symbol */
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sym->flags |= SYMBOL_WARNED;
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if (sym && !sym_is_optional(sym) && parent->prompt) {
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sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
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expr_alloc_and(parent->prompt->visible.expr,
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expr_alloc_symbol(&symbol_mod)));
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bool menu_is_visible(struct menu *menu)
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visible = menu->prompt->visible.tri;
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visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
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if (!sym || sym_get_tristate_value(menu->sym) == no)
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for (child = menu->list; child; child = child->next)
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if (menu_is_visible(child))
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const char *menu_get_prompt(struct menu *menu)
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return menu->prompt->text;
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return menu->sym->name;
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struct menu *menu_get_root_menu(struct menu *menu)
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struct menu *menu_get_parent_menu(struct menu *menu)
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for (; menu != &rootmenu; menu = menu->parent) {
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type = menu->prompt ? menu->prompt->type : 0;
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struct file *file_lookup(const char *name)
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for (file = file_list; file; file = file->next) {
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if (!strcmp(name, file->name))
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file = malloc(sizeof(*file));
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memset(file, 0, sizeof(*file));
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file->name = strdup(name);
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file->next = file_list;
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int file_write_dep(const char *name)
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name = ".config.cmd";
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out = fopen("..config.tmp", "w");
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fprintf(out, "deps_config := \\\n");
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for (file = file_list; file; file = file->next) {
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fprintf(out, "\t%s \\\n", file->name);
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fprintf(out, "\t%s\n", file->name);
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fprintf(out, "\n.config include/linux/autoconf.h: $(deps_config)\n\n$(deps_config):\n");
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rename("..config.tmp", name);