| -rw-r--r-- | scripts/kconfig/menu.c | 309 |
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 = ¤t_entry->list; +} + +void menu_end_menu(void) +{ + last_entry_ptr = ¤t_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; +} + |