[mirror_ubuntu-bionic-kernel.git] / scripts / kconfig / menu.c

/*
 * 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"

static const char nohelp_text[] = N_(
	"There is no help available for this kernel option.\n");

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 = 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)
{
}

struct menu *menu_add_menu(void)
{
	menu_end_entry();
	last_entry_ptr = &current_entry->list;
	return current_menu = current_entry;
}

void menu_end_menu(void)
{
	last_entry_ptr = &current_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));
	current_entry->dir_dep = current_entry->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, "type of '%s' redefined 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)
			prop_warn(prop, "prompt redefined");
		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_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)
{
	struct property *prop;

	switch (token) {
	case T_OPT_MODULES:
		prop = prop_alloc(P_DEFAULT, modules_sym);
		prop->expr = expr_alloc_symbol(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;
	}
}

static int menu_range_valid_sym(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);
			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_range_valid_sym(sym, prop->expr->left.sym) ||
			    !menu_range_valid_sym(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) {
		/* ignore inherited dependencies for dir_dep */
		sym->dir_dep.expr = expr_transform(expr_copy(parent->dir_dep));
		sym->dir_dep.expr = expr_eliminate_dups(sym->dir_dep.expr);

		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;
		}
	}
	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;
}

bool menu_is_visible(struct menu *menu)
{
	struct menu *child;
	struct symbol *sym;
	tristate visible;

	if (!menu->prompt)
		return false;

	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)
{
	int i, j;
	struct menu *submenu[8], *menu;

	str_printf(r, _("Prompt: %s\n"), _(prop->text));
	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");
	}
	menu = prop->menu->parent;
	for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
		submenu[i++] = menu;
	if (i > 0) {
		str_printf(r, _("  Location:\n"));
		for (j = 4; --i >= 0; j += 2) {
			menu = submenu[i];
			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");
		}
	}
}

void get_symbol_str(struct gstr *r, struct symbol *sym)
{
	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);
	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 symbol *sym;
	struct gstr res = str_new();
	int i;

	for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
		get_symbol_str(&res, sym);
	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;

	if (menu_has_help(menu)) {
		if (sym->name) {
			str_printf(help, "CONFIG_%s:\n\n", sym->name);
			str_append(help, _(menu_get_help(menu)));
			str_append(help, "\n");
		}
	} else {
		str_append(help, nohelp_text);
	}
	if (sym)
		get_symbol_str(help, sym);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
	3	* Released under the terms of the GNU GPL v2.0.
	4	*/
	5
	6	#include <stdlib.h>
	7	#include <string.h>
	8
	9	#define LKC_DIRECT_LINK
	10	#include "lkc.h"
	11
6bd5999d CR	12	static const char nohelp_text[] = N_(
	13	"There is no help available for this kernel option.\n");
	14
1da177e4 LT	15	struct menu rootmenu;
	16	static struct menu **last_entry_ptr;
	17
	18	struct file *file_list;
	19	struct file *current_file;
	20
93449082	21	void menu_warn(struct menu menu, const char fmt, ...)
1da177e4 LT	22	{
	23	va_list ap;
	24	va_start(ap, fmt);
	25	fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
	26	vfprintf(stderr, fmt, ap);
	27	fprintf(stderr, "\n");
	28	va_end(ap);
	29	}
	30
	31	static void prop_warn(struct property prop, const char fmt, ...)
	32	{
	33	va_list ap;
	34	va_start(ap, fmt);
	35	fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
	36	vfprintf(stderr, fmt, ap);
	37	fprintf(stderr, "\n");
	38	va_end(ap);
	39	}
	40
692d97c3	41	void _menu_init(void)
1da177e4 LT	42	{
	43	current_entry = current_menu = &rootmenu;
	44	last_entry_ptr = &rootmenu.list;
	45	}
	46
	47	void menu_add_entry(struct symbol *sym)
	48	{
	49	struct menu *menu;
	50
	51	menu = malloc(sizeof(*menu));
	52	memset(menu, 0, sizeof(*menu));
	53	menu->sym = sym;
	54	menu->parent = current_menu;
	55	menu->file = current_file;
	56	menu->lineno = zconf_lineno();
	57
	58	*last_entry_ptr = menu;
	59	last_entry_ptr = &menu->next;
	60	current_entry = menu;
	61	}
	62
	63	void menu_end_entry(void)
	64	{
	65	}
	66
a02f0570	67	struct menu *menu_add_menu(void)
1da177e4	68	{
a02f0570	69	menu_end_entry();
1da177e4	70	last_entry_ptr = &current_entry->list;
a02f0570	71	return current_menu = current_entry;
1da177e4 LT	72	}
	73
	74	void menu_end_menu(void)
	75	{
	76	last_entry_ptr = &current_menu->next;
	77	current_menu = current_menu->parent;
	78	}
	79
4356f489	80	static struct expr menu_check_dep(struct expr e)
1da177e4 LT	81	{
	82	if (!e)
	83	return e;
	84
	85	switch (e->type) {
	86	case E_NOT:
	87	e->left.expr = menu_check_dep(e->left.expr);
	88	break;
	89	case E_OR:
	90	case E_AND:
	91	e->left.expr = menu_check_dep(e->left.expr);
	92	e->right.expr = menu_check_dep(e->right.expr);
	93	break;
	94	case E_SYMBOL:
	95	/* change 'm' into 'm' && MODULES */
	96	if (e->left.sym == &symbol_mod)
	97	return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
	98	break;
	99	default:
	100	break;
	101	}
	102	return e;
	103	}
	104
	105	void menu_add_dep(struct expr *dep)
	106	{
	107	current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
246cf9c2	108	current_entry->dir_dep = current_entry->dep;
1da177e4 LT	109	}
	110
	111	void menu_set_type(int type)
	112	{
	113	struct symbol *sym = current_entry->sym;
	114
	115	if (sym->type == type)
	116	return;
	117	if (sym->type == S_UNKNOWN) {
	118	sym->type = type;
	119	return;
	120	}
f001f7f8	121	menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'",
1da177e4 LT	122	sym->name ? sym->name : "<choice>",
	123	sym_type_name(sym->type), sym_type_name(type));
	124	}
	125
	126	struct property menu_add_prop(enum prop_type type, char prompt, struct expr expr, struct expr dep)
	127	{
	128	struct property *prop = prop_alloc(type, current_entry->sym);
	129
	130	prop->menu = current_entry;
1da177e4 LT	131	prop->expr = expr;
	132	prop->visible.expr = menu_check_dep(dep);
	133
	134	if (prompt) {
f001f7f8 RZ	135	if (isspace(*prompt)) {
	136	prop_warn(prop, "leading whitespace ignored");
	137	while (isspace(*prompt))
	138	prompt++;
	139	}
1da177e4	140	if (current_entry->prompt)
f001f7f8	141	prop_warn(prop, "prompt redefined");
1da177e4 LT	142	current_entry->prompt = prop;
1da177e4 LT	143	}
f001f7f8	144	prop->text = prompt;
1da177e4 LT	145
	146	return prop;
	147	}
	148
fb7f6ff6	149	struct property menu_add_prompt(enum prop_type type, char prompt, struct expr *dep)
1da177e4	150	{
fb7f6ff6	151	return menu_add_prop(type, prompt, NULL, dep);
1da177e4 LT	152	}
	153
	154	void menu_add_expr(enum prop_type type, struct expr expr, struct expr dep)
	155	{
	156	menu_add_prop(type, NULL, expr, dep);
	157	}
	158
	159	void menu_add_symbol(enum prop_type type, struct symbol sym, struct expr dep)
	160	{
	161	menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
	162	}
	163
f6a88aa8 RZ	164	void menu_add_option(int token, char *arg)
f6a88aa8 RZ	165	{
face4374 RZ	166	struct property *prop;
	167
	168	switch (token) {
	169	case T_OPT_MODULES:
	170	prop = prop_alloc(P_DEFAULT, modules_sym);
	171	prop->expr = expr_alloc_symbol(current_entry->sym);
	172	break;
	173	case T_OPT_DEFCONFIG_LIST:
	174	if (!sym_defconfig_list)
	175	sym_defconfig_list = current_entry->sym;
	176	else if (sym_defconfig_list != current_entry->sym)
	177	zconf_error("trying to redefine defconfig symbol");
	178	break;
93449082 RZ	179	case T_OPT_ENV:
	180	prop_add_env(arg);
	181	break;
face4374	182	}
f6a88aa8 RZ	183	}
f6a88aa8 RZ	184
4cf3cbe2 RZ	185	static int menu_range_valid_sym(struct symbol sym, struct symbol sym2)
	186	{
	187	return sym2->type == S_INT \|\| sym2->type == S_HEX \|\|
	188	(sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
	189	}
	190
4356f489	191	static void sym_check_prop(struct symbol *sym)
1da177e4 LT	192	{
	193	struct property *prop;
	194	struct symbol *sym2;
	195	for (prop = sym->prop; prop; prop = prop->next) {
	196	switch (prop->type) {
	197	case P_DEFAULT:
	198	if ((sym->type == S_STRING \|\| sym->type == S_INT \|\| sym->type == S_HEX) &&
	199	prop->expr->type != E_SYMBOL)
	200	prop_warn(prop,
4280eae0	201	"default for config symbol '%s'"
1da177e4 LT	202	" must be a single symbol", sym->name);
	203	break;
	204	case P_SELECT:
	205	sym2 = prop_get_symbol(prop);
	206	if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
	207	prop_warn(prop,
	208	"config symbol '%s' uses select, but is "
	209	"not boolean or tristate", sym->name);
603d4988 SR	210	else if (sym2->type != S_UNKNOWN &&
	211	sym2->type != S_BOOLEAN &&
	212	sym2->type != S_TRISTATE)
1da177e4 LT	213	prop_warn(prop,
	214	"'%s' has wrong type. 'select' only "
	215	"accept arguments of boolean and "
	216	"tristate type", sym2->name);
	217	break;
	218	case P_RANGE:
	219	if (sym->type != S_INT && sym->type != S_HEX)
	220	prop_warn(prop, "range is only allowed "
	221	"for int or hex symbols");
4cf3cbe2 RZ	222	if (!menu_range_valid_sym(sym, prop->expr->left.sym) \|\|
4cf3cbe2 RZ	223	!menu_range_valid_sym(sym, prop->expr->right.sym))
1da177e4 LT	224	prop_warn(prop, "range is invalid");
	225	break;
	226	default:
	227	;
	228	}
	229	}
	230	}
	231
	232	void menu_finalize(struct menu *parent)
	233	{
	234	struct menu menu, last_menu;
	235	struct symbol *sym;
	236	struct property *prop;
	237	struct expr parentdep, basedep, dep, dep2, **ep;
	238
	239	sym = parent->sym;
	240	if (parent->list) {
	241	if (sym && sym_is_choice(sym)) {
5a1aa8a1 RZ	242	if (sym->type == S_UNKNOWN) {
	243	/* find the first choice value to find out choice type */
	244	current_entry = parent;
	245	for (menu = parent->list; menu; menu = menu->next) {
	246	if (menu->sym && menu->sym->type != S_UNKNOWN) {
f5eaa323	247	menu_set_type(menu->sym->type);
5a1aa8a1 RZ	248	break;
5a1aa8a1 RZ	249	}
1da177e4 LT	250	}
1da177e4 LT	251	}
5a1aa8a1 RZ	252	/* set the type of the remaining choice values */
	253	for (menu = parent->list; menu; menu = menu->next) {
	254	current_entry = menu;
	255	if (menu->sym && menu->sym->type == S_UNKNOWN)
	256	menu_set_type(sym->type);
	257	}
1da177e4 LT	258	parentdep = expr_alloc_symbol(sym);
	259	} else if (parent->prompt)
	260	parentdep = parent->prompt->visible.expr;
	261	else
	262	parentdep = parent->dep;
	263
	264	for (menu = parent->list; menu; menu = menu->next) {
	265	basedep = expr_transform(menu->dep);
e8b8c977	266	basedep = expr_alloc_and(expr_copy(parentdep), basedep);
1da177e4 LT	267	basedep = expr_eliminate_dups(basedep);
	268	menu->dep = basedep;
	269	if (menu->sym)
	270	prop = menu->sym->prop;
	271	else
	272	prop = menu->prompt;
	273	for (; prop; prop = prop->next) {
	274	if (prop->menu != menu)
	275	continue;
	276	dep = expr_transform(prop->visible.expr);
	277	dep = expr_alloc_and(expr_copy(basedep), dep);
	278	dep = expr_eliminate_dups(dep);
	279	if (menu->sym && menu->sym->type != S_TRISTATE)
	280	dep = expr_trans_bool(dep);
	281	prop->visible.expr = dep;
	282	if (prop->type == P_SELECT) {
	283	struct symbol *es = prop_get_symbol(prop);
	284	es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
	285	expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
	286	}
	287	}
	288	}
	289	for (menu = parent->list; menu; menu = menu->next)
	290	menu_finalize(menu);
	291	} else if (sym) {
246cf9c2 CM	292	/* ignore inherited dependencies for dir_dep */
	293	sym->dir_dep.expr = expr_transform(expr_copy(parent->dir_dep));
	294	sym->dir_dep.expr = expr_eliminate_dups(sym->dir_dep.expr);
	295
1da177e4 LT	296	basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
	297	basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
	298	basedep = expr_eliminate_dups(expr_transform(basedep));
	299	last_menu = NULL;
	300	for (menu = parent->next; menu; menu = menu->next) {
	301	dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
	302	if (!expr_contains_symbol(dep, sym))
	303	break;
	304	if (expr_depends_symbol(dep, sym))
	305	goto next;
	306	dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
	307	dep = expr_eliminate_dups(expr_transform(dep));
	308	dep2 = expr_copy(basedep);
	309	expr_eliminate_eq(&dep, &dep2);
	310	expr_free(dep);
	311	if (!expr_is_yes(dep2)) {
	312	expr_free(dep2);
	313	break;
	314	}
	315	expr_free(dep2);
	316	next:
	317	menu_finalize(menu);
	318	menu->parent = parent;
	319	last_menu = menu;
	320	}
	321	if (last_menu) {
	322	parent->list = parent->next;
	323	parent->next = last_menu->next;
	324	last_menu->next = NULL;
	325	}
	326	}
	327	for (menu = parent->list; menu; menu = menu->next) {
5a1aa8a1 RZ	328	if (sym && sym_is_choice(sym) &&
	329	menu->sym && !sym_is_choice_value(menu->sym)) {
	330	current_entry = menu;
1da177e4 LT	331	menu->sym->flags \|= SYMBOL_CHOICEVAL;
	332	if (!menu->prompt)
	333	menu_warn(menu, "choice value must have a prompt");
	334	for (prop = menu->sym->prop; prop; prop = prop->next) {
1da177e4 LT	335	if (prop->type == P_DEFAULT)
1da177e4 LT	336	prop_warn(prop, "defaults for choice "
5a1aa8a1 RZ	337	"values not supported");
	338	if (prop->menu == menu)
	339	continue;
	340	if (prop->type == P_PROMPT &&
	341	prop->menu->parent->sym != sym)
	342	prop_warn(prop, "choice value used outside its choice group");
1da177e4	343	}
f5eaa323 JB	344	/* Non-tristate choice values of tristate choices must
	345	* depend on the choice being set to Y. The choice
	346	* values' dependencies were propagated to their
	347	* properties above, so the change here must be re-
5a1aa8a1 RZ	348	* propagated.
5a1aa8a1 RZ	349	*/
f5eaa323 JB	350	if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
f5eaa323 JB	351	basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
5a1aa8a1	352	menu->dep = expr_alloc_and(basedep, menu->dep);
f5eaa323 JB	353	for (prop = menu->sym->prop; prop; prop = prop->next) {
	354	if (prop->menu != menu)
	355	continue;
5a1aa8a1 RZ	356	prop->visible.expr = expr_alloc_and(expr_copy(basedep),
5a1aa8a1 RZ	357	prop->visible.expr);
f5eaa323 JB	358	}
f5eaa323 JB	359	}
1da177e4 LT	360	menu_add_symbol(P_CHOICE, sym, NULL);
	361	prop = sym_get_choice_prop(sym);
	362	for (ep = &prop->expr; ep; ep = &(ep)->left.expr)
	363	;
7a962923	364	*ep = expr_alloc_one(E_LIST, NULL);
1da177e4 LT	365	(*ep)->right.sym = menu->sym;
	366	}
	367	if (menu->list && (!menu->prompt \|\| !menu->prompt->text)) {
	368	for (last_menu = menu->list; ; last_menu = last_menu->next) {
	369	last_menu->parent = parent;
	370	if (!last_menu->next)
	371	break;
	372	}
	373	last_menu->next = menu->next;
	374	menu->next = menu->list;
	375	menu->list = NULL;
	376	}
	377	}
	378
	379	if (sym && !(sym->flags & SYMBOL_WARNED)) {
	380	if (sym->type == S_UNKNOWN)
f001f7f8	381	menu_warn(parent, "config symbol defined without type");
1da177e4 LT	382
1da177e4 LT	383	if (sym_is_choice(sym) && !parent->prompt)
f001f7f8	384	menu_warn(parent, "choice must have a prompt");
1da177e4 LT	385
	386	/* Check properties connected to this symbol */
	387	sym_check_prop(sym);
	388	sym->flags \|= SYMBOL_WARNED;
	389	}
	390
	391	if (sym && !sym_is_optional(sym) && parent->prompt) {
	392	sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
	393	expr_alloc_and(parent->prompt->visible.expr,
	394	expr_alloc_symbol(&symbol_mod)));
	395	}
	396	}
	397
22c7eca6 LZ	398	bool menu_has_prompt(struct menu *menu)
	399	{
	400	if (!menu->prompt)
	401	return false;
	402	return true;
	403	}
	404
1da177e4 LT	405	bool menu_is_visible(struct menu *menu)
	406	{
	407	struct menu *child;
	408	struct symbol *sym;
	409	tristate visible;
	410
	411	if (!menu->prompt)
	412	return false;
22c7eca6	413
1da177e4 LT	414	sym = menu->sym;
	415	if (sym) {
	416	sym_calc_value(sym);
	417	visible = menu->prompt->visible.tri;
	418	} else
	419	visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
	420
	421	if (visible != no)
	422	return true;
22c7eca6	423
1da177e4 LT	424	if (!sym \|\| sym_get_tristate_value(menu->sym) == no)
	425	return false;
	426
3fb9acb3 LZ	427	for (child = menu->list; child; child = child->next) {
	428	if (menu_is_visible(child)) {
	429	if (sym)
	430	sym->flags \|= SYMBOL_DEF_USER;
1da177e4	431	return true;
3fb9acb3 LZ	432	}
3fb9acb3 LZ	433	}
22c7eca6	434
1da177e4 LT	435	return false;
	436	}
	437
	438	const char menu_get_prompt(struct menu menu)
	439	{
	440	if (menu->prompt)
01771b0f	441	return menu->prompt->text;
1da177e4	442	else if (menu->sym)
01771b0f	443	return menu->sym->name;
1da177e4 LT	444	return NULL;
	445	}
	446
	447	struct menu menu_get_root_menu(struct menu menu)
	448	{
	449	return &rootmenu;
	450	}
	451
	452	struct menu menu_get_parent_menu(struct menu menu)
	453	{
	454	enum prop_type type;
	455
	456	for (; menu != &rootmenu; menu = menu->parent) {
	457	type = menu->prompt ? menu->prompt->type : 0;
	458	if (type == P_MENU)
	459	break;
	460	}
	461	return menu;
	462	}
	463
03d29122 SR	464	bool menu_has_help(struct menu *menu)
	465	{
	466	return menu->help != NULL;
	467	}
	468
	469	const char menu_get_help(struct menu menu)
	470	{
	471	if (menu->help)
	472	return menu->help;
	473	else
	474	return "";
	475	}
6bd5999d CR	476
	477	static void get_prompt_str(struct gstr r, struct property prop)
	478	{
	479	int i, j;
	480	struct menu submenu[8], menu;
	481
	482	str_printf(r, _("Prompt: %s\n"), _(prop->text));
	483	str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
	484	prop->menu->lineno);
	485	if (!expr_is_yes(prop->visible.expr)) {
	486	str_append(r, _(" Depends on: "));
	487	expr_gstr_print(prop->visible.expr, r);
	488	str_append(r, "\n");
	489	}
	490	menu = prop->menu->parent;
	491	for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
	492	submenu[i++] = menu;
	493	if (i > 0) {
	494	str_printf(r, _(" Location:\n"));
	495	for (j = 4; --i >= 0; j += 2) {
	496	menu = submenu[i];
	497	str_printf(r, "%*c-> %s", j, ' ', _(menu_get_prompt(menu)));
	498	if (menu->sym) {
	499	str_printf(r, " (%s [=%s])", menu->sym->name ?
	500	menu->sym->name : _("<choice>"),
	501	sym_get_string_value(menu->sym));
	502	}
	503	str_append(r, "\n");
	504	}
	505	}
	506	}
	507
	508	void get_symbol_str(struct gstr r, struct symbol sym)
	509	{
	510	bool hit;
	511	struct property *prop;
	512
b040b44c	513	if (sym && sym->name) {
6bd5999d CR	514	str_printf(r, "Symbol: %s [=%s]\n", sym->name,
6bd5999d CR	515	sym_get_string_value(sym));
b040b44c	516	str_printf(r, "Type : %s\n", sym_type_name(sym->type));
70ed0747 LZ	517	if (sym->type == S_INT \|\| sym->type == S_HEX) {
	518	prop = sym_get_range_prop(sym);
	519	if (prop) {
	520	str_printf(r, "Range : ");
	521	expr_gstr_print(prop->expr, r);
	522	str_append(r, "\n");
	523	}
	524	}
b040b44c	525	}
6bd5999d CR	526	for_all_prompts(sym, prop)
	527	get_prompt_str(r, prop);
	528	hit = false;
	529	for_all_properties(sym, prop, P_SELECT) {
	530	if (!hit) {
	531	str_append(r, " Selects: ");
	532	hit = true;
	533	} else
	534	str_printf(r, " && ");
	535	expr_gstr_print(prop->expr, r);
	536	}
	537	if (hit)
	538	str_append(r, "\n");
	539	if (sym->rev_dep.expr) {
	540	str_append(r, _(" Selected by: "));
	541	expr_gstr_print(sym->rev_dep.expr, r);
	542	str_append(r, "\n");
	543	}
	544	str_append(r, "\n\n");
	545	}
	546
692d97c3	547	struct gstr get_relations_str(struct symbol **sym_arr)
	548	{
	549	struct symbol *sym;
	550	struct gstr res = str_new();
	551	int i;
	552
	553	for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
	554	get_symbol_str(&res, sym);
	555	if (!i)
	556	str_append(&res, _("No matches found.\n"));
	557	return res;
	558	}
	559
	560
6bd5999d CR	561	void menu_get_ext_help(struct menu menu, struct gstr help)
	562	{
	563	struct symbol *sym = menu->sym;
	564
	565	if (menu_has_help(menu)) {
	566	if (sym->name) {
	567	str_printf(help, "CONFIG_%s:\n\n", sym->name);
	568	str_append(help, _(menu_get_help(menu)));
	569	str_append(help, "\n");
	570	}
	571	} else {
	572	str_append(help, nohelp_text);
	573	}
4779105e CR	574	if (sym)
4779105e CR	575	get_symbol_str(help, sym);
6bd5999d	576	}