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path: root/scripts/kconfig/menu.c
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Diffstat (limited to 'scripts/kconfig/menu.c') (more/less context) (ignore whitespace changes)
-rw-r--r--scripts/kconfig/menu.c309
1 files changed, 309 insertions, 0 deletions
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
new file mode 100644
index 0000000..4595110
--- a/dev/null
+++ b/scripts/kconfig/menu.c
@@ -0,0 +1,309 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+struct menu rootmenu;
+struct menu *current_menu, *current_entry;
+static struct menu **last_entry_ptr;
+
+struct file *file_list;
+struct file *current_file;
+
+void menu_init(void)
+{
+ current_entry = current_menu = &rootmenu;
+ last_entry_ptr = &rootmenu.list;
+}
+
+void menu_add_entry(struct symbol *sym)
+{
+ struct menu *menu;
+
+ menu = malloc(sizeof(*menu));
+ memset(menu, 0, sizeof(*menu));
+ menu->sym = sym;
+ menu->parent = current_menu;
+ menu->file = current_file;
+ menu->lineno = zconf_lineno();
+
+ *last_entry_ptr = menu;
+ last_entry_ptr = &menu->next;
+ current_entry = menu;
+}
+
+void menu_end_entry(void)
+{
+}
+
+void menu_add_menu(void)
+{
+ current_menu = current_entry;
+ last_entry_ptr = &current_entry->list;
+}
+
+void menu_end_menu(void)
+{
+ last_entry_ptr = &current_menu->next;
+ current_menu = current_menu->parent;
+}
+
+void menu_add_dep(struct expr *dep)
+{
+ current_entry->dep = expr_alloc_and(current_entry->dep, dep);
+}
+
+void menu_set_type(int type)
+{
+ struct symbol *sym = current_entry->sym;
+
+ if (sym->type == type)
+ return;
+ if (sym->type == S_UNKNOWN) {
+ sym->type = type;
+ return;
+ }
+ fprintf(stderr, "%s:%d: type of '%s' redefined from '%s' to '%s'\n",
+ current_entry->file->name, current_entry->lineno,
+ sym->name ? sym->name : "<choice>", sym_type_name(sym->type), sym_type_name(type));
+}
+
+struct property *create_prop(enum prop_type type)
+{
+ struct property *prop;
+
+ prop = malloc(sizeof(*prop));
+ memset(prop, 0, sizeof(*prop));
+ prop->type = type;
+ prop->file = current_file;
+ prop->lineno = zconf_lineno();
+
+ return prop;
+}
+
+struct property *menu_add_prop(int token, char *prompt, struct symbol *def, struct expr *dep)
+{
+ struct property *prop = create_prop(token);
+ struct property **propp;
+
+ prop->sym = current_entry->sym;
+ prop->menu = current_entry;
+ prop->text = prompt;
+ prop->def = def;
+ E_EXPR(prop->visible) = dep;
+
+ if (prompt)
+ current_entry->prompt = prop;
+
+ /* append property to the prop list of symbol */
+ if (prop->sym) {
+ for (propp = &prop->sym->prop; *propp; propp = &(*propp)->next)
+ ;
+ *propp = prop;
+ }
+
+ return prop;
+}
+
+void menu_add_prompt(int token, char *prompt, struct expr *dep)
+{
+ current_entry->prompt = menu_add_prop(token, prompt, NULL, dep);
+}
+
+void menu_add_default(int token, struct symbol *def, struct expr *dep)
+{
+ current_entry->prompt = menu_add_prop(token, NULL, def, dep);
+}
+
+void menu_finalize(struct menu *parent)
+{
+ struct menu *menu, *last_menu;
+ struct symbol *sym;
+ struct property *prop;
+ struct expr *parentdep, *basedep, *dep, *dep2;
+
+ sym = parent->sym;
+ if (parent->list) {
+ if (sym && sym_is_choice(sym)) {
+ /* find the first choice value and find out choice type */
+ for (menu = parent->list; menu; menu = menu->next) {
+ if (menu->sym) {
+ current_entry = parent;
+ menu_set_type(menu->sym->type);
+ current_entry = menu;
+ menu_set_type(sym->type);
+ break;
+ }
+ }
+ parentdep = expr_alloc_symbol(sym);
+ } else if (parent->prompt)
+ parentdep = E_EXPR(parent->prompt->visible);
+ else
+ parentdep = parent->dep;
+
+ for (menu = parent->list; menu; menu = menu->next) {
+ basedep = expr_transform(menu->dep);
+ basedep = expr_alloc_and(expr_copy(parentdep), basedep);
+ basedep = expr_eliminate_dups(basedep);
+ menu->dep = basedep;
+ if (menu->sym)
+ prop = menu->sym->prop;
+ else
+ prop = menu->prompt;
+ for (; prop; prop = prop->next) {
+ if (prop->menu != menu)
+ continue;
+ dep = expr_transform(E_EXPR(prop->visible));
+ dep = expr_alloc_and(expr_copy(basedep), dep);
+ dep = expr_eliminate_dups(dep);
+ if (menu->sym && menu->sym->type != S_TRISTATE)
+ dep = expr_trans_bool(dep);
+ E_EXPR(prop->visible) = dep;
+ }
+ }
+ for (menu = parent->list; menu; menu = menu->next)
+ menu_finalize(menu);
+ } else if (sym && parent->prompt) {
+ basedep = E_EXPR(parent->prompt->visible);
+ basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
+ basedep = expr_eliminate_dups(expr_transform(basedep));
+ last_menu = NULL;
+ for (menu = parent->next; menu; menu = menu->next) {
+ dep = menu->prompt ? E_EXPR(menu->prompt->visible) : menu->dep;
+ if (!expr_contains_symbol(dep, sym))
+ break;
+ if (expr_depends_symbol(dep, sym))
+ goto next;
+ dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
+ dep = expr_eliminate_dups(expr_transform(dep));
+ dep2 = expr_copy(basedep);
+ expr_eliminate_eq(&dep, &dep2);
+ expr_free(dep);
+ if (!expr_is_yes(dep2)) {
+ expr_free(dep2);
+ break;
+ }
+ expr_free(dep2);
+ next:
+ menu_finalize(menu);
+ menu->parent = parent;
+ last_menu = menu;
+ }
+ if (last_menu) {
+ parent->list = parent->next;
+ parent->next = last_menu->next;
+ last_menu->next = NULL;
+ }
+ }
+ for (menu = parent->list; menu; menu = menu->next) {
+ if (sym && sym_is_choice(sym) && menu->sym) {
+ menu->sym->flags |= SYMBOL_CHOICEVAL;
+ current_entry = menu;
+ menu_set_type(sym->type);
+ menu_add_prop(P_CHOICE, NULL, parent->sym, NULL);
+ prop = sym_get_choice_prop(parent->sym);
+ //dep = expr_alloc_one(E_CHOICE, dep);
+ //dep->right.sym = menu->sym;
+ prop->dep = expr_alloc_one(E_CHOICE, prop->dep);
+ prop->dep->right.sym = menu->sym;
+ }
+ if (menu->list && (!menu->prompt || !menu->prompt->text)) {
+ for (last_menu = menu->list; ; last_menu = last_menu->next) {
+ last_menu->parent = parent;
+ if (!last_menu->next)
+ break;
+ }
+ last_menu->next = menu->next;
+ menu->next = menu->list;
+ menu->list = NULL;
+ }
+ }
+}
+
+bool menu_is_visible(struct menu *menu)
+{
+ tristate visible;
+
+ if (!menu->prompt)
+ return false;
+ if (menu->sym) {
+ sym_calc_value(menu->sym);
+ visible = E_TRI(menu->prompt->visible);
+ } else
+ visible = E_CALC(menu->prompt->visible);
+ return visible != no;
+}
+
+const char *menu_get_prompt(struct menu *menu)
+{
+ if (menu->prompt)
+ return menu->prompt->text;
+ else if (menu->sym)
+ return menu->sym->name;
+ return NULL;
+}
+
+struct menu *menu_get_root_menu(struct menu *menu)
+{
+ return &rootmenu;
+}
+
+struct menu *menu_get_parent_menu(struct menu *menu)
+{
+ enum prop_type type;
+
+ while (menu != &rootmenu) {
+ menu = menu->parent;
+ type = menu->prompt ? menu->prompt->type : 0;
+ if (type == P_MENU || type == P_ROOTMENU)
+ break;
+ }
+ return menu;
+}
+
+struct file *file_lookup(const char *name)
+{
+ struct file *file;
+
+ for (file = file_list; file; file = file->next) {
+ if (!strcmp(name, file->name))
+ return file;
+ }
+
+ file = malloc(sizeof(*file));
+ memset(file, 0, sizeof(*file));
+ file->name = strdup(name);
+ file->next = file_list;
+ file_list = file;
+ return file;
+}
+
+int file_write_dep(const char *name)
+{
+ struct file *file;
+ FILE *out;
+
+ if (!name)
+ name = "..config.cmd";
+ out = fopen("..config.tmp", "w");
+ if (!out)
+ return 1;
+ fprintf(out, "deps_config := \\\n");
+ for (file = file_list; file; file = file->next) {
+ if (file->next)
+ fprintf(out, "\t%s \\\n", file->name);
+ else
+ fprintf(out, "\t%s\n", file->name);
+ }
+ fprintf(out, "\n.config include/linux/autoconf.h: $(deps_config)\n\n$(deps_config):\n");
+ fclose(out);
+ rename("..config.tmp", name);
+ return 0;
+}
+