kconfig: import Kconfig files from Linux 3.16-rc7
Import
- scripts/kconfig/*
- include/linux/kconfig.h
from Linux 3.16-rc7.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
new file mode 100644
index 0000000..a26cc5d
--- /dev/null
+++ b/scripts/kconfig/menu.c
@@ -0,0 +1,697 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "lkc.h"
+
+static const char nohelp_text[] = "There is no help available for this option.";
+
+struct menu rootmenu;
+static struct menu **last_entry_ptr;
+
+struct file *file_list;
+struct file *current_file;
+
+void menu_warn(struct menu *menu, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+}
+
+static void prop_warn(struct property *prop, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+}
+
+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 = xmalloc(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;
+ if (sym)
+ menu_add_symbol(P_SYMBOL, sym, NULL);
+}
+
+void menu_end_entry(void)
+{
+}
+
+struct menu *menu_add_menu(void)
+{
+ menu_end_entry();
+ last_entry_ptr = ¤t_entry->list;
+ return current_menu = current_entry;
+}
+
+void menu_end_menu(void)
+{
+ last_entry_ptr = ¤t_menu->next;
+ current_menu = current_menu->parent;
+}
+
+static struct expr *menu_check_dep(struct expr *e)
+{
+ if (!e)
+ return e;
+
+ switch (e->type) {
+ case E_NOT:
+ e->left.expr = menu_check_dep(e->left.expr);
+ break;
+ case E_OR:
+ case E_AND:
+ e->left.expr = menu_check_dep(e->left.expr);
+ e->right.expr = menu_check_dep(e->right.expr);
+ break;
+ case E_SYMBOL:
+ /* change 'm' into 'm' && MODULES */
+ if (e->left.sym == &symbol_mod)
+ return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
+ break;
+ default:
+ break;
+ }
+ return e;
+}
+
+void menu_add_dep(struct expr *dep)
+{
+ current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_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;
+ }
+ menu_warn(current_entry,
+ "ignoring type redefinition of '%s' from '%s' to '%s'",
+ sym->name ? sym->name : "<choice>",
+ sym_type_name(sym->type), sym_type_name(type));
+}
+
+struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
+{
+ struct property *prop = prop_alloc(type, current_entry->sym);
+
+ prop->menu = current_entry;
+ prop->expr = expr;
+ prop->visible.expr = menu_check_dep(dep);
+
+ if (prompt) {
+ if (isspace(*prompt)) {
+ prop_warn(prop, "leading whitespace ignored");
+ while (isspace(*prompt))
+ prompt++;
+ }
+ if (current_entry->prompt && current_entry != &rootmenu)
+ prop_warn(prop, "prompt redefined");
+
+ /* Apply all upper menus' visibilities to actual prompts. */
+ if(type == P_PROMPT) {
+ struct menu *menu = current_entry;
+
+ while ((menu = menu->parent) != NULL) {
+ struct expr *dup_expr;
+
+ if (!menu->visibility)
+ continue;
+ /*
+ * Do not add a reference to the
+ * menu's visibility expression but
+ * use a copy of it. Otherwise the
+ * expression reduction functions
+ * will modify expressions that have
+ * multiple references which can
+ * cause unwanted side effects.
+ */
+ dup_expr = expr_copy(menu->visibility);
+
+ prop->visible.expr
+ = expr_alloc_and(prop->visible.expr,
+ dup_expr);
+ }
+ }
+
+ current_entry->prompt = prop;
+ }
+ prop->text = prompt;
+
+ return prop;
+}
+
+struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
+{
+ return menu_add_prop(type, prompt, NULL, dep);
+}
+
+void menu_add_visibility(struct expr *expr)
+{
+ current_entry->visibility = expr_alloc_and(current_entry->visibility,
+ expr);
+}
+
+void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
+{
+ menu_add_prop(type, NULL, expr, dep);
+}
+
+void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
+{
+ menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
+}
+
+void menu_add_option(int token, char *arg)
+{
+ switch (token) {
+ case T_OPT_MODULES:
+ if (modules_sym)
+ zconf_error("symbol '%s' redefines option 'modules'"
+ " already defined by symbol '%s'",
+ current_entry->sym->name,
+ modules_sym->name
+ );
+ modules_sym = current_entry->sym;
+ break;
+ case T_OPT_DEFCONFIG_LIST:
+ if (!sym_defconfig_list)
+ sym_defconfig_list = current_entry->sym;
+ else if (sym_defconfig_list != current_entry->sym)
+ zconf_error("trying to redefine defconfig symbol");
+ break;
+ case T_OPT_ENV:
+ prop_add_env(arg);
+ break;
+ case T_OPT_ALLNOCONFIG_Y:
+ current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y;
+ break;
+ }
+}
+
+static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
+{
+ return sym2->type == S_INT || sym2->type == S_HEX ||
+ (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
+}
+
+static void sym_check_prop(struct symbol *sym)
+{
+ struct property *prop;
+ struct symbol *sym2;
+ for (prop = sym->prop; prop; prop = prop->next) {
+ switch (prop->type) {
+ case P_DEFAULT:
+ if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
+ prop->expr->type != E_SYMBOL)
+ prop_warn(prop,
+ "default for config symbol '%s'"
+ " must be a single symbol", sym->name);
+ if (prop->expr->type != E_SYMBOL)
+ break;
+ sym2 = prop_get_symbol(prop);
+ if (sym->type == S_HEX || sym->type == S_INT) {
+ if (!menu_validate_number(sym, sym2))
+ prop_warn(prop,
+ "'%s': number is invalid",
+ sym->name);
+ }
+ break;
+ case P_SELECT:
+ sym2 = prop_get_symbol(prop);
+ if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
+ prop_warn(prop,
+ "config symbol '%s' uses select, but is "
+ "not boolean or tristate", sym->name);
+ else if (sym2->type != S_UNKNOWN &&
+ sym2->type != S_BOOLEAN &&
+ sym2->type != S_TRISTATE)
+ prop_warn(prop,
+ "'%s' has wrong type. 'select' only "
+ "accept arguments of boolean and "
+ "tristate type", sym2->name);
+ break;
+ case P_RANGE:
+ if (sym->type != S_INT && sym->type != S_HEX)
+ prop_warn(prop, "range is only allowed "
+ "for int or hex symbols");
+ if (!menu_validate_number(sym, prop->expr->left.sym) ||
+ !menu_validate_number(sym, prop->expr->right.sym))
+ prop_warn(prop, "range is invalid");
+ break;
+ default:
+ ;
+ }
+ }
+}
+
+void menu_finalize(struct menu *parent)
+{
+ struct menu *menu, *last_menu;
+ struct symbol *sym;
+ struct property *prop;
+ struct expr *parentdep, *basedep, *dep, *dep2, **ep;
+
+ sym = parent->sym;
+ if (parent->list) {
+ if (sym && sym_is_choice(sym)) {
+ if (sym->type == S_UNKNOWN) {
+ /* find the first choice value to find out choice type */
+ current_entry = parent;
+ for (menu = parent->list; menu; menu = menu->next) {
+ if (menu->sym && menu->sym->type != S_UNKNOWN) {
+ menu_set_type(menu->sym->type);
+ break;
+ }
+ }
+ }
+ /* set the type of the remaining choice values */
+ for (menu = parent->list; menu; menu = menu->next) {
+ current_entry = menu;
+ if (menu->sym && menu->sym->type == S_UNKNOWN)
+ menu_set_type(sym->type);
+ }
+ parentdep = expr_alloc_symbol(sym);
+ } else if (parent->prompt)
+ parentdep = parent->prompt->visible.expr;
+ 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(prop->visible.expr);
+ 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);
+ prop->visible.expr = dep;
+ if (prop->type == P_SELECT) {
+ struct symbol *es = prop_get_symbol(prop);
+ es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
+ expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
+ }
+ }
+ }
+ for (menu = parent->list; menu; menu = menu->next)
+ menu_finalize(menu);
+ } else if (sym) {
+ basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
+ 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 ? menu->prompt->visible.expr : 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;
+ }
+
+ sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
+ }
+ for (menu = parent->list; menu; menu = menu->next) {
+ if (sym && sym_is_choice(sym) &&
+ menu->sym && !sym_is_choice_value(menu->sym)) {
+ current_entry = menu;
+ menu->sym->flags |= SYMBOL_CHOICEVAL;
+ if (!menu->prompt)
+ menu_warn(menu, "choice value must have a prompt");
+ for (prop = menu->sym->prop; prop; prop = prop->next) {
+ if (prop->type == P_DEFAULT)
+ prop_warn(prop, "defaults for choice "
+ "values not supported");
+ if (prop->menu == menu)
+ continue;
+ if (prop->type == P_PROMPT &&
+ prop->menu->parent->sym != sym)
+ prop_warn(prop, "choice value used outside its choice group");
+ }
+ /* Non-tristate choice values of tristate choices must
+ * depend on the choice being set to Y. The choice
+ * values' dependencies were propagated to their
+ * properties above, so the change here must be re-
+ * propagated.
+ */
+ if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
+ basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
+ menu->dep = expr_alloc_and(basedep, menu->dep);
+ for (prop = menu->sym->prop; prop; prop = prop->next) {
+ if (prop->menu != menu)
+ continue;
+ prop->visible.expr = expr_alloc_and(expr_copy(basedep),
+ prop->visible.expr);
+ }
+ }
+ menu_add_symbol(P_CHOICE, sym, NULL);
+ prop = sym_get_choice_prop(sym);
+ for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
+ ;
+ *ep = expr_alloc_one(E_LIST, NULL);
+ (*ep)->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;
+ }
+ }
+
+ if (sym && !(sym->flags & SYMBOL_WARNED)) {
+ if (sym->type == S_UNKNOWN)
+ menu_warn(parent, "config symbol defined without type");
+
+ if (sym_is_choice(sym) && !parent->prompt)
+ menu_warn(parent, "choice must have a prompt");
+
+ /* Check properties connected to this symbol */
+ sym_check_prop(sym);
+ sym->flags |= SYMBOL_WARNED;
+ }
+
+ if (sym && !sym_is_optional(sym) && parent->prompt) {
+ sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
+ expr_alloc_and(parent->prompt->visible.expr,
+ expr_alloc_symbol(&symbol_mod)));
+ }
+}
+
+bool menu_has_prompt(struct menu *menu)
+{
+ if (!menu->prompt)
+ return false;
+ return true;
+}
+
+/*
+ * Determine if a menu is empty.
+ * A menu is considered empty if it contains no or only
+ * invisible entries.
+ */
+bool menu_is_empty(struct menu *menu)
+{
+ struct menu *child;
+
+ for (child = menu->list; child; child = child->next) {
+ if (menu_is_visible(child))
+ return(false);
+ }
+ return(true);
+}
+
+bool menu_is_visible(struct menu *menu)
+{
+ struct menu *child;
+ struct symbol *sym;
+ tristate visible;
+
+ if (!menu->prompt)
+ return false;
+
+ if (menu->visibility) {
+ if (expr_calc_value(menu->visibility) == no)
+ return no;
+ }
+
+ sym = menu->sym;
+ if (sym) {
+ sym_calc_value(sym);
+ visible = menu->prompt->visible.tri;
+ } else
+ visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
+
+ if (visible != no)
+ return true;
+
+ if (!sym || sym_get_tristate_value(menu->sym) == no)
+ return false;
+
+ for (child = menu->list; child; child = child->next) {
+ if (menu_is_visible(child)) {
+ if (sym)
+ sym->flags |= SYMBOL_DEF_USER;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+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;
+
+ for (; menu != &rootmenu; menu = menu->parent) {
+ type = menu->prompt ? menu->prompt->type : 0;
+ if (type == P_MENU)
+ break;
+ }
+ return menu;
+}
+
+bool menu_has_help(struct menu *menu)
+{
+ return menu->help != NULL;
+}
+
+const char *menu_get_help(struct menu *menu)
+{
+ if (menu->help)
+ return menu->help;
+ else
+ return "";
+}
+
+static void get_prompt_str(struct gstr *r, struct property *prop,
+ struct list_head *head)
+{
+ int i, j;
+ struct menu *submenu[8], *menu, *location = NULL;
+ struct jump_key *jump;
+
+ str_printf(r, _("Prompt: %s\n"), _(prop->text));
+ menu = prop->menu->parent;
+ for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
+ bool accessible = menu_is_visible(menu);
+
+ submenu[i++] = menu;
+ if (location == NULL && accessible)
+ location = menu;
+ }
+ if (head && location) {
+ jump = xmalloc(sizeof(struct jump_key));
+
+ if (menu_is_visible(prop->menu)) {
+ /*
+ * There is not enough room to put the hint at the
+ * beginning of the "Prompt" line. Put the hint on the
+ * last "Location" line even when it would belong on
+ * the former.
+ */
+ jump->target = prop->menu;
+ } else
+ jump->target = location;
+
+ if (list_empty(head))
+ jump->index = 0;
+ else
+ jump->index = list_entry(head->prev, struct jump_key,
+ entries)->index + 1;
+
+ list_add_tail(&jump->entries, head);
+ }
+
+ if (i > 0) {
+ str_printf(r, _(" Location:\n"));
+ for (j = 4; --i >= 0; j += 2) {
+ menu = submenu[i];
+ if (head && location && menu == location)
+ jump->offset = strlen(r->s);
+ str_printf(r, "%*c-> %s", j, ' ',
+ _(menu_get_prompt(menu)));
+ if (menu->sym) {
+ str_printf(r, " (%s [=%s])", menu->sym->name ?
+ menu->sym->name : _("<choice>"),
+ sym_get_string_value(menu->sym));
+ }
+ str_append(r, "\n");
+ }
+ }
+}
+
+/*
+ * get property of type P_SYMBOL
+ */
+static struct property *get_symbol_prop(struct symbol *sym)
+{
+ struct property *prop = NULL;
+
+ for_all_properties(sym, prop, P_SYMBOL)
+ break;
+ return prop;
+}
+
+/*
+ * head is optional and may be NULL
+ */
+void get_symbol_str(struct gstr *r, struct symbol *sym,
+ struct list_head *head)
+{
+ bool hit;
+ struct property *prop;
+
+ if (sym && sym->name) {
+ str_printf(r, "Symbol: %s [=%s]\n", sym->name,
+ sym_get_string_value(sym));
+ str_printf(r, "Type : %s\n", sym_type_name(sym->type));
+ if (sym->type == S_INT || sym->type == S_HEX) {
+ prop = sym_get_range_prop(sym);
+ if (prop) {
+ str_printf(r, "Range : ");
+ expr_gstr_print(prop->expr, r);
+ str_append(r, "\n");
+ }
+ }
+ }
+ for_all_prompts(sym, prop)
+ get_prompt_str(r, prop, head);
+
+ prop = get_symbol_prop(sym);
+ if (prop) {
+ str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
+ prop->menu->lineno);
+ if (!expr_is_yes(prop->visible.expr)) {
+ str_append(r, _(" Depends on: "));
+ expr_gstr_print(prop->visible.expr, r);
+ str_append(r, "\n");
+ }
+ }
+
+ hit = false;
+ for_all_properties(sym, prop, P_SELECT) {
+ if (!hit) {
+ str_append(r, " Selects: ");
+ hit = true;
+ } else
+ str_printf(r, " && ");
+ expr_gstr_print(prop->expr, r);
+ }
+ if (hit)
+ str_append(r, "\n");
+ if (sym->rev_dep.expr) {
+ str_append(r, _(" Selected by: "));
+ expr_gstr_print(sym->rev_dep.expr, r);
+ str_append(r, "\n");
+ }
+ str_append(r, "\n\n");
+}
+
+struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
+{
+ struct symbol *sym;
+ struct gstr res = str_new();
+ int i;
+
+ for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
+ get_symbol_str(&res, sym, head);
+ if (!i)
+ str_append(&res, _("No matches found.\n"));
+ return res;
+}
+
+
+void menu_get_ext_help(struct menu *menu, struct gstr *help)
+{
+ struct symbol *sym = menu->sym;
+ const char *help_text = nohelp_text;
+
+ if (menu_has_help(menu)) {
+ if (sym->name)
+ str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
+ help_text = menu_get_help(menu);
+ }
+ str_printf(help, "%s\n", _(help_text));
+ if (sym)
+ get_symbol_str(help, sym, NULL);
+}