Part of Kconfig used in kconfig_parser exported to shared directory and updated to linux v4.0-rc5

15 files changed, 12 insertions, 6427 deletions

diff --git a/scripts/kconfig_parser/Makefile b/scripts/kconfig_parser/Makefile
index 68fbb93..f582673 100644
--- a/scripts/kconfig_parser/Makefile
+++ b/scripts/kconfig_parser/Makefile
@@ -1,24 +1,19 @@
+.PHONY: all clean
 .SUFFIXES:
 
+all: parser
+
+KCONFIG_PREFIX = ../shared/kconfig
+include $(KCONFIG_PREFIX)/files.mk
+
 SRC  = parser.c \
 	       cnfexpr.c \
 	       symlist.c \
 	       output.c
-SRC += kconfig/zconf.tab.c
 CFLAGS = -O0 -w -ggdb
 
-parser: $(SRC) kconfig/zconf.lex.c kconfig/zconf.hash.c
-	gcc $(CFLAGS) -o $@ $(SRC)
-
-%.hash.c: %.gperf
-	gperf -t --output-file $@ -a -C -E -g -k '1,3,$$' -p -t $<
-
-%.lex.c: %.l
-	flex -o $@  -L -P zconf $<
-
-%.tab.c: %.y kconfig/zconf.lex.c kconfig/zconf.hash.c
-	bison -o $@ $< -p zconf -t -l
+parser: $(SRC) $(KCONFIG_SRC)
+	gcc $(CFLAGS) -o $@ $^ -I$(KCONFIG_PREFIX)
 
-clean:
-	$(RM) kconfig/zconf.tab.c kconfig/zconf.lex.c kconfig/zconf.hash.c
+clean::
 	$(RM) parser
diff --git a/scripts/kconfig_parser/cnfexpr.h b/scripts/kconfig_parser/cnfexpr.h
index 0473368..1d0edd4 100644
--- a/scripts/kconfig_parser/cnfexpr.h
+++ b/scripts/kconfig_parser/cnfexpr.h
@@ -5,7 +5,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include "symlist.h"
-#include "kconfig/lkc.h"
+#include "lkc.h"
 
 enum cnfexpr_type {
     CT_EXPR, CT_FALSE, CT_TRUE
diff --git a/scripts/kconfig_parser/kconfig/confdata.c b/scripts/kconfig_parser/kconfig/confdata.c
deleted file mode 100644
index f88d90f..0000000
--- a/scripts/kconfig_parser/kconfig/confdata.c
+++ /dev/null
@@ -1,1242 +0,0 @@
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#include <sys/stat.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "lkc.h"
-
-static void conf_warning(const char *fmt, ...)
-	__attribute__ ((format (printf, 1, 2)));
-
-static void conf_message(const char *fmt, ...)
-	__attribute__ ((format (printf, 1, 2)));
-
-static const char *conf_filename;
-static int conf_lineno, conf_warnings, conf_unsaved;
-
-const char conf_defname[] = "arch/$ARCH/defconfig";
-
-static void conf_warning(const char *fmt, ...)
-{
-	va_list ap;
-	va_start(ap, fmt);
-	fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
-	vfprintf(stderr, fmt, ap);
-	fprintf(stderr, "\n");
-	va_end(ap);
-	conf_warnings++;
-}
-
-static void conf_default_message_callback(const char *fmt, va_list ap)
-{
-	printf("#\n# ");
-	vprintf(fmt, ap);
-	printf("\n#\n");
-}
-
-static void (*conf_message_callback) (const char *fmt, va_list ap) =
-	conf_default_message_callback;
-void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
-{
-	conf_message_callback = fn;
-}
-
-static void conf_message(const char *fmt, ...)
-{
-	va_list ap;
-
-	va_start(ap, fmt);
-	if (conf_message_callback)
-		conf_message_callback(fmt, ap);
-}
-
-const char *conf_get_configname(void)
-{
-	char *name = getenv("KCONFIG_CONFIG");
-
-	return name ? name : ".config";
-}
-
-const char *conf_get_autoconfig_name(void)
-{
-	char *name = getenv("KCONFIG_AUTOCONFIG");
-
-	return name ? name : "include/config/auto.conf";
-}
-
-static char *conf_expand_value(const char *in)
-{
-	struct symbol *sym;
-	const char *src;
-	static char res_value[SYMBOL_MAXLENGTH];
-	char *dst, name[SYMBOL_MAXLENGTH];
-
-	res_value[0] = 0;
-	dst = name;
-	while ((src = strchr(in, '$'))) {
-		strncat(res_value, in, src - in);
-		src++;
-		dst = name;
-		while (isalnum(*src) || *src == '_')
-			*dst++ = *src++;
-		*dst = 0;
-		sym = sym_lookup(name, 0);
-		sym_calc_value(sym);
-		strcat(res_value, sym_get_string_value(sym));
-		in = src;
-	}
-	strcat(res_value, in);
-
-	return res_value;
-}
-
-char *conf_get_default_confname(void)
-{
-	struct stat buf;
-	static char fullname[PATH_MAX+1];
-	char *env, *name;
-
-	name = conf_expand_value(conf_defname);
-	env = getenv(SRCTREE);
-	if (env) {
-		sprintf(fullname, "%s/%s", env, name);
-		if (!stat(fullname, &buf))
-			return fullname;
-	}
-	return name;
-}
-
-static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
-{
-	char *p2;
-
-	switch (sym->type) {
-	case S_TRISTATE:
-		if (p[0] == 'm') {
-			sym->def[def].tri = mod;
-			sym->flags |= def_flags;
-			break;
-		}
-		/* fall through */
-	case S_BOOLEAN:
-		if (p[0] == 'y') {
-			sym->def[def].tri = yes;
-			sym->flags |= def_flags;
-			break;
-		}
-		if (p[0] == 'n') {
-			sym->def[def].tri = no;
-			sym->flags |= def_flags;
-			break;
-		}
-		if (def != S_DEF_AUTO)
-			conf_warning("symbol value '%s' invalid for %s",
-				     p, sym->name);
-		return 1;
-	case S_OTHER:
-		if (*p != '"') {
-			for (p2 = p; *p2 && !isspace(*p2); p2++)
-				;
-			sym->type = S_STRING;
-			goto done;
-		}
-		/* fall through */
-	case S_STRING:
-		if (*p++ != '"')
-			break;
-		for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
-			if (*p2 == '"') {
-				*p2 = 0;
-				break;
-			}
-			memmove(p2, p2 + 1, strlen(p2));
-		}
-		if (!p2) {
-			if (def != S_DEF_AUTO)
-				conf_warning("invalid string found");
-			return 1;
-		}
-		/* fall through */
-	case S_INT:
-	case S_HEX:
-	done:
-		if (sym_string_valid(sym, p)) {
-			sym->def[def].val = strdup(p);
-			sym->flags |= def_flags;
-		} else {
-			if (def != S_DEF_AUTO)
-				conf_warning("symbol value '%s' invalid for %s",
-					     p, sym->name);
-			return 1;
-		}
-		break;
-	default:
-		;
-	}
-	return 0;
-}
-
-#define LINE_GROWTH 16
-static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
-{
-	char *nline;
-	size_t new_size = slen + 1;
-	if (new_size > *n) {
-		new_size += LINE_GROWTH - 1;
-		new_size *= 2;
-		nline = realloc(*lineptr, new_size);
-		if (!nline)
-			return -1;
-
-		*lineptr = nline;
-		*n = new_size;
-	}
-
-	(*lineptr)[slen] = c;
-
-	return 0;
-}
-
-static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
-{
-	char *line = *lineptr;
-	size_t slen = 0;
-
-	for (;;) {
-		int c = getc(stream);
-
-		switch (c) {
-		case '\n':
-			if (add_byte(c, &line, slen, n) < 0)
-				goto e_out;
-			slen++;
-			/* fall through */
-		case EOF:
-			if (add_byte('\0', &line, slen, n) < 0)
-				goto e_out;
-			*lineptr = line;
-			if (slen == 0)
-				return -1;
-			return slen;
-		default:
-			if (add_byte(c, &line, slen, n) < 0)
-				goto e_out;
-			slen++;
-		}
-	}
-
-e_out:
-	line[slen-1] = '\0';
-	*lineptr = line;
-	return -1;
-}
-
-int conf_read_simple(const char *name, int def)
-{
-	FILE *in = NULL;
-	char   *line = NULL;
-	size_t  line_asize = 0;
-	char *p, *p2;
-	struct symbol *sym;
-	int i, def_flags;
-
-	if (name) {
-		in = zconf_fopen(name);
-	} else {
-		struct property *prop;
-
-		name = conf_get_configname();
-		in = zconf_fopen(name);
-		if (in)
-			goto load;
-		sym_add_change_count(1);
-		if (!sym_defconfig_list) {
-			if (modules_sym)
-				sym_calc_value(modules_sym);
-			return 1;
-		}
-
-		for_all_defaults(sym_defconfig_list, prop) {
-			if (expr_calc_value(prop->visible.expr) == no ||
-			    prop->expr->type != E_SYMBOL)
-				continue;
-			name = conf_expand_value(prop->expr->left.sym->name);
-			in = zconf_fopen(name);
-			if (in) {
-				conf_message(_("using defaults found in %s"),
-					 name);
-				goto load;
-			}
-		}
-	}
-	if (!in)
-		return 1;
-
-load:
-	conf_filename = name;
-	conf_lineno = 0;
-	conf_warnings = 0;
-	conf_unsaved = 0;
-
-	def_flags = SYMBOL_DEF << def;
-	for_all_symbols(i, sym) {
-		sym->flags |= SYMBOL_CHANGED;
-		sym->flags &= ~(def_flags|SYMBOL_VALID);
-		if (sym_is_choice(sym))
-			sym->flags |= def_flags;
-		switch (sym->type) {
-		case S_INT:
-		case S_HEX:
-		case S_STRING:
-			if (sym->def[def].val)
-				free(sym->def[def].val);
-			/* fall through */
-		default:
-			sym->def[def].val = NULL;
-			sym->def[def].tri = no;
-		}
-	}
-
-	while (compat_getline(&line, &line_asize, in) != -1) {
-		conf_lineno++;
-		sym = NULL;
-		if (line[0] == '#') {
-			if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
-				continue;
-			p = strchr(line + 2 + strlen(CONFIG_), ' ');
-			if (!p)
-				continue;
-			*p++ = 0;
-			if (strncmp(p, "is not set", 10))
-				continue;
-			if (def == S_DEF_USER) {
-				sym = sym_find(line + 2 + strlen(CONFIG_));
-				if (!sym) {
-					sym_add_change_count(1);
-					goto setsym;
-				}
-			} else {
-				sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
-				if (sym->type == S_UNKNOWN)
-					sym->type = S_BOOLEAN;
-			}
-			if (sym->flags & def_flags) {
-				conf_warning("override: reassigning to symbol %s", sym->name);
-			}
-			switch (sym->type) {
-			case S_BOOLEAN:
-			case S_TRISTATE:
-				sym->def[def].tri = no;
-				sym->flags |= def_flags;
-				break;
-			default:
-				;
-			}
-		} else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
-			p = strchr(line + strlen(CONFIG_), '=');
-			if (!p)
-				continue;
-			*p++ = 0;
-			p2 = strchr(p, '\n');
-			if (p2) {
-				*p2-- = 0;
-				if (*p2 == '\r')
-					*p2 = 0;
-			}
-			if (def == S_DEF_USER) {
-				sym = sym_find(line + strlen(CONFIG_));
-				if (!sym) {
-					sym_add_change_count(1);
-					goto setsym;
-				}
-			} else {
-				sym = sym_lookup(line + strlen(CONFIG_), 0);
-				if (sym->type == S_UNKNOWN)
-					sym->type = S_OTHER;
-			}
-			if (sym->flags & def_flags) {
-				conf_warning("override: reassigning to symbol %s", sym->name);
-			}
-			if (conf_set_sym_val(sym, def, def_flags, p))
-				continue;
-		} else {
-			if (line[0] != '\r' && line[0] != '\n')
-				conf_warning("unexpected data");
-			continue;
-		}
-setsym:
-		if (sym && sym_is_choice_value(sym)) {
-			struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
-			switch (sym->def[def].tri) {
-			case no:
-				break;
-			case mod:
-				if (cs->def[def].tri == yes) {
-					conf_warning("%s creates inconsistent choice state", sym->name);
-					cs->flags &= ~def_flags;
-				}
-				break;
-			case yes:
-				if (cs->def[def].tri != no)
-					conf_warning("override: %s changes choice state", sym->name);
-				cs->def[def].val = sym;
-				break;
-			}
-			cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
-		}
-	}
-	free(line);
-	fclose(in);
-
-	if (modules_sym)
-		sym_calc_value(modules_sym);
-	return 0;
-}
-
-int conf_read(const char *name)
-{
-	struct symbol *sym;
-	int i;
-
-	sym_set_change_count(0);
-
-	if (conf_read_simple(name, S_DEF_USER))
-		return 1;
-
-	for_all_symbols(i, sym) {
-		sym_calc_value(sym);
-		if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
-			continue;
-		if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
-			/* check that calculated value agrees with saved value */
-			switch (sym->type) {
-			case S_BOOLEAN:
-			case S_TRISTATE:
-				if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
-					break;
-				if (!sym_is_choice(sym))
-					continue;
-				/* fall through */
-			default:
-				if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
-					continue;
-				break;
-			}
-		} else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
-			/* no previous value and not saved */
-			continue;
-		conf_unsaved++;
-		/* maybe print value in verbose mode... */
-	}
-
-	for_all_symbols(i, sym) {
-		if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
-			/* Reset values of generates values, so they'll appear
-			 * as new, if they should become visible, but that
-			 * doesn't quite work if the Kconfig and the saved
-			 * configuration disagree.
-			 */
-			if (sym->visible == no && !conf_unsaved)
-				sym->flags &= ~SYMBOL_DEF_USER;
-			switch (sym->type) {
-			case S_STRING:
-			case S_INT:
-			case S_HEX:
-				/* Reset a string value if it's out of range */
-				if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
-					break;
-				sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
-				conf_unsaved++;
-				break;
-			default:
-				break;
-			}
-		}
-	}
-
-	sym_add_change_count(conf_warnings || conf_unsaved);
-
-	return 0;
-}
-
-/*
- * Kconfig configuration printer
- *
- * This printer is used when generating the resulting configuration after
- * kconfig invocation and `defconfig' files. Unset symbol might be omitted by
- * passing a non-NULL argument to the printer.
- *
- */
-static void
-kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
-{
-
-	switch (sym->type) {
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		if (*value == 'n') {
-			bool skip_unset = (arg != NULL);
-
-			if (!skip_unset)
-				fprintf(fp, "# %s%s is not set\n",
-				    CONFIG_, sym->name);
-			return;
-		}
-		break;
-	default:
-		break;
-	}
-
-	fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
-}
-
-static void
-kconfig_print_comment(FILE *fp, const char *value, void *arg)
-{
-	const char *p = value;
-	size_t l;
-
-	for (;;) {
-		l = strcspn(p, "\n");
-		fprintf(fp, "#");
-		if (l) {
-			fprintf(fp, " ");
-			xfwrite(p, l, 1, fp);
-			p += l;
-		}
-		fprintf(fp, "\n");
-		if (*p++ == '\0')
-			break;
-	}
-}
-
-static struct conf_printer kconfig_printer_cb =
-{
-	.print_symbol = kconfig_print_symbol,
-	.print_comment = kconfig_print_comment,
-};
-
-/*
- * Header printer
- *
- * This printer is used when generating the `include/generated/autoconf.h' file.
- */
-static void
-header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
-{
-
-	switch (sym->type) {
-	case S_BOOLEAN:
-	case S_TRISTATE: {
-		const char *suffix = "";
-
-		switch (*value) {
-		case 'n':
-			break;
-		case 'm':
-			suffix = "_MODULE";
-			/* fall through */
-		default:
-			fprintf(fp, "#define %s%s%s 1\n",
-			    CONFIG_, sym->name, suffix);
-		}
-		break;
-	}
-	case S_HEX: {
-		const char *prefix = "";
-
-		if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
-			prefix = "0x";
-		fprintf(fp, "#define %s%s %s%s\n",
-		    CONFIG_, sym->name, prefix, value);
-		break;
-	}
-	case S_STRING:
-	case S_INT:
-		fprintf(fp, "#define %s%s %s\n",
-		    CONFIG_, sym->name, value);
-		break;
-	default:
-		break;
-	}
-
-}
-
-static void
-header_print_comment(FILE *fp, const char *value, void *arg)
-{
-	const char *p = value;
-	size_t l;
-
-	fprintf(fp, "/*\n");
-	for (;;) {
-		l = strcspn(p, "\n");
-		fprintf(fp, " *");
-		if (l) {
-			fprintf(fp, " ");
-			xfwrite(p, l, 1, fp);
-			p += l;
-		}
-		fprintf(fp, "\n");
-		if (*p++ == '\0')
-			break;
-	}
-	fprintf(fp, " */\n");
-}
-
-static struct conf_printer header_printer_cb =
-{
-	.print_symbol = header_print_symbol,
-	.print_comment = header_print_comment,
-};
-
-/*
- * Tristate printer
- *
- * This printer is used when generating the `include/config/tristate.conf' file.
- */
-static void
-tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
-{
-
-	if (sym->type == S_TRISTATE && *value != 'n')
-		fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
-}
-
-static struct conf_printer tristate_printer_cb =
-{
-	.print_symbol = tristate_print_symbol,
-	.print_comment = kconfig_print_comment,
-};
-
-static void conf_write_symbol(FILE *fp, struct symbol *sym,
-			      struct conf_printer *printer, void *printer_arg)
-{
-	const char *str;
-
-	switch (sym->type) {
-	case S_OTHER:
-	case S_UNKNOWN:
-		break;
-	case S_STRING:
-		str = sym_get_string_value(sym);
-		str = sym_escape_string_value(str);
-		printer->print_symbol(fp, sym, str, printer_arg);
-		free((void *)str);
-		break;
-	default:
-		str = sym_get_string_value(sym);
-		printer->print_symbol(fp, sym, str, printer_arg);
-	}
-}
-
-static void
-conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
-{
-	char buf[256];
-
-	snprintf(buf, sizeof(buf),
-	    "\n"
-	    "Automatically generated file; DO NOT EDIT.\n"
-	    "%s\n",
-	    rootmenu.prompt->text);
-
-	printer->print_comment(fp, buf, printer_arg);
-}
-
-/*
- * Write out a minimal config.
- * All values that has default values are skipped as this is redundant.
- */
-int conf_write_defconfig(const char *filename)
-{
-	struct symbol *sym;
-	struct menu *menu;
-	FILE *out;
-
-	out = fopen(filename, "w");
-	if (!out)
-		return 1;
-
-	sym_clear_all_valid();
-
-	/* Traverse all menus to find all relevant symbols */
-	menu = rootmenu.list;
-
-	while (menu != NULL)
-	{
-		sym = menu->sym;
-		if (sym == NULL) {
-			if (!menu_is_visible(menu))
-				goto next_menu;
-		} else if (!sym_is_choice(sym)) {
-			sym_calc_value(sym);
-			if (!(sym->flags & SYMBOL_WRITE))
-				goto next_menu;
-			sym->flags &= ~SYMBOL_WRITE;
-			/* If we cannot change the symbol - skip */
-			if (!sym_is_changable(sym))
-				goto next_menu;
-			/* If symbol equals to default value - skip */
-			if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
-				goto next_menu;
-
-			/*
-			 * If symbol is a choice value and equals to the
-			 * default for a choice - skip.
-			 * But only if value is bool and equal to "y" and
-			 * choice is not "optional".
-			 * (If choice is "optional" then all values can be "n")
-			 */
-			if (sym_is_choice_value(sym)) {
-				struct symbol *cs;
-				struct symbol *ds;
-
-				cs = prop_get_symbol(sym_get_choice_prop(sym));
-				ds = sym_choice_default(cs);
-				if (!sym_is_optional(cs) && sym == ds) {
-					if ((sym->type == S_BOOLEAN) &&
-					    sym_get_tristate_value(sym) == yes)
-						goto next_menu;
-				}
-			}
-			conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
-		}
-next_menu:
-		if (menu->list != NULL) {
-			menu = menu->list;
-		}
-		else if (menu->next != NULL) {
-			menu = menu->next;
-		} else {
-			while ((menu = menu->parent)) {
-				if (menu->next != NULL) {
-					menu = menu->next;
-					break;
-				}
-			}
-		}
-	}
-	fclose(out);
-	return 0;
-}
-
-int conf_write(const char *name)
-{
-	FILE *out;
-	struct symbol *sym;
-	struct menu *menu;
-	const char *basename;
-	const char *str;
-	char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
-	char *env;
-
-	dirname[0] = 0;
-	if (name && name[0]) {
-		struct stat st;
-		char *slash;
-
-		if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
-			strcpy(dirname, name);
-			strcat(dirname, "/");
-			basename = conf_get_configname();
-		} else if ((slash = strrchr(name, '/'))) {
-			int size = slash - name + 1;
-			memcpy(dirname, name, size);
-			dirname[size] = 0;
-			if (slash[1])
-				basename = slash + 1;
-			else
-				basename = conf_get_configname();
-		} else
-			basename = name;
-	} else
-		basename = conf_get_configname();
-
-	sprintf(newname, "%s%s", dirname, basename);
-	env = getenv("KCONFIG_OVERWRITECONFIG");
-	if (!env || !*env) {
-		sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
-		out = fopen(tmpname, "w");
-	} else {
-		*tmpname = 0;
-		out = fopen(newname, "w");
-	}
-	if (!out)
-		return 1;
-
-	conf_write_heading(out, &kconfig_printer_cb, NULL);
-
-	if (!conf_get_changed())
-		sym_clear_all_valid();
-
-	menu = rootmenu.list;
-	while (menu) {
-		sym = menu->sym;
-		if (!sym) {
-			if (!menu_is_visible(menu))
-				goto next;
-			str = menu_get_prompt(menu);
-			fprintf(out, "\n"
-				     "#\n"
-				     "# %s\n"
-				     "#\n", str);
-		} else if (!(sym->flags & SYMBOL_CHOICE)) {
-			sym_calc_value(sym);
-			if (!(sym->flags & SYMBOL_WRITE))
-				goto next;
-			sym->flags &= ~SYMBOL_WRITE;
-
-			conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
-		}
-
-next:
-		if (menu->list) {
-			menu = menu->list;
-			continue;
-		}
-		if (menu->next)
-			menu = menu->next;
-		else while ((menu = menu->parent)) {
-			if (menu->next) {
-				menu = menu->next;
-				break;
-			}
-		}
-	}
-	fclose(out);
-
-	if (*tmpname) {
-		strcat(dirname, basename);
-		strcat(dirname, ".old");
-		rename(newname, dirname);
-		if (rename(tmpname, newname))
-			return 1;
-	}
-
-	conf_message(_("configuration written to %s"), newname);
-
-	sym_set_change_count(0);
-
-	return 0;
-}
-
-static int conf_split_config(void)
-{
-	const char *name;
-	char path[PATH_MAX+1];
-	char *s, *d, c;
-	struct symbol *sym;
-	struct stat sb;
-	int res, i, fd;
-
-	name = conf_get_autoconfig_name();
-	conf_read_simple(name, S_DEF_AUTO);
-
-	if (chdir("include/config"))
-		return 1;
-
-	res = 0;
-	for_all_symbols(i, sym) {
-		sym_calc_value(sym);
-		if ((sym->flags & SYMBOL_AUTO) || !sym->name)
-			continue;
-		if (sym->flags & SYMBOL_WRITE) {
-			if (sym->flags & SYMBOL_DEF_AUTO) {
-				/*
-				 * symbol has old and new value,
-				 * so compare them...
-				 */
-				switch (sym->type) {
-				case S_BOOLEAN:
-				case S_TRISTATE:
-					if (sym_get_tristate_value(sym) ==
-					    sym->def[S_DEF_AUTO].tri)
-						continue;
-					break;
-				case S_STRING:
-				case S_HEX:
-				case S_INT:
-					if (!strcmp(sym_get_string_value(sym),
-						    sym->def[S_DEF_AUTO].val))
-						continue;
-					break;
-				default:
-					break;
-				}
-			} else {
-				/*
-				 * If there is no old value, only 'no' (unset)
-				 * is allowed as new value.
-				 */
-				switch (sym->type) {
-				case S_BOOLEAN:
-				case S_TRISTATE:
-					if (sym_get_tristate_value(sym) == no)
-						continue;
-					break;
-				default:
-					break;
-				}
-			}
-		} else if (!(sym->flags & SYMBOL_DEF_AUTO))
-			/* There is neither an old nor a new value. */
-			continue;
-		/* else
-		 *	There is an old value, but no new value ('no' (unset)
-		 *	isn't saved in auto.conf, so the old value is always
-		 *	different from 'no').
-		 */
-
-		/* Replace all '_' and append ".h" */
-		s = sym->name;
-		d = path;
-		while ((c = *s++)) {
-			c = tolower(c);
-			*d++ = (c == '_') ? '/' : c;
-		}
-		strcpy(d, ".h");
-
-		/* Assume directory path already exists. */
-		fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
-		if (fd == -1) {
-			if (errno != ENOENT) {
-				res = 1;
-				break;
-			}
-			/*
-			 * Create directory components,
-			 * unless they exist already.
-			 */
-			d = path;
-			while ((d = strchr(d, '/'))) {
-				*d = 0;
-				if (stat(path, &sb) && mkdir(path, 0755)) {
-					res = 1;
-					goto out;
-				}
-				*d++ = '/';
-			}
-			/* Try it again. */
-			fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
-			if (fd == -1) {
-				res = 1;
-				break;
-			}
-		}
-		close(fd);
-	}
-out:
-	if (chdir("../.."))
-		return 1;
-
-	return res;
-}
-
-int conf_write_autoconf(void)
-{
-	struct symbol *sym;
-	const char *name;
-	FILE *out, *tristate, *out_h;
-	int i;
-
-	sym_clear_all_valid();
-
-	file_write_dep("include/config/auto.conf.cmd");
-
-	if (conf_split_config())
-		return 1;
-
-	out = fopen(".tmpconfig", "w");
-	if (!out)
-		return 1;
-
-	tristate = fopen(".tmpconfig_tristate", "w");
-	if (!tristate) {
-		fclose(out);
-		return 1;
-	}
-
-	out_h = fopen(".tmpconfig.h", "w");
-	if (!out_h) {
-		fclose(out);
-		fclose(tristate);
-		return 1;
-	}
-
-	conf_write_heading(out, &kconfig_printer_cb, NULL);
-
-	conf_write_heading(tristate, &tristate_printer_cb, NULL);
-
-	conf_write_heading(out_h, &header_printer_cb, NULL);
-
-	for_all_symbols(i, sym) {
-		sym_calc_value(sym);
-		if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
-			continue;
-
-		/* write symbol to auto.conf, tristate and header files */
-		conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
-
-		conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
-
-		conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
-	}
-	fclose(out);
-	fclose(tristate);
-	fclose(out_h);
-
-	name = getenv("KCONFIG_AUTOHEADER");
-	if (!name)
-		name = "include/generated/autoconf.h";
-	if (rename(".tmpconfig.h", name))
-		return 1;
-	name = getenv("KCONFIG_TRISTATE");
-	if (!name)
-		name = "include/config/tristate.conf";
-	if (rename(".tmpconfig_tristate", name))
-		return 1;
-	name = conf_get_autoconfig_name();
-	/*
-	 * This must be the last step, kbuild has a dependency on auto.conf
-	 * and this marks the successful completion of the previous steps.
-	 */
-	if (rename(".tmpconfig", name))
-		return 1;
-
-	return 0;
-}
-
-static int sym_change_count;
-static void (*conf_changed_callback)(void);
-
-void sym_set_change_count(int count)
-{
-	int _sym_change_count = sym_change_count;
-	sym_change_count = count;
-	if (conf_changed_callback &&
-	    (bool)_sym_change_count != (bool)count)
-		conf_changed_callback();
-}
-
-void sym_add_change_count(int count)
-{
-	sym_set_change_count(count + sym_change_count);
-}
-
-bool conf_get_changed(void)
-{
-	return sym_change_count;
-}
-
-void conf_set_changed_callback(void (*fn)(void))
-{
-	conf_changed_callback = fn;
-}
-
-static bool randomize_choice_values(struct symbol *csym)
-{
-	struct property *prop;
-	struct symbol *sym;
-	struct expr *e;
-	int cnt, def;
-
-	/*
-	 * If choice is mod then we may have more items selected
-	 * and if no then no-one.
-	 * In both cases stop.
-	 */
-	if (csym->curr.tri != yes)
-		return false;
-
-	prop = sym_get_choice_prop(csym);
-
-	/* count entries in choice block */
-	cnt = 0;
-	expr_list_for_each_sym(prop->expr, e, sym)
-		cnt++;
-
-	/*
-	 * find a random value and set it to yes,
-	 * set the rest to no so we have only one set
-	 */
-	def = (rand() % cnt);
-
-	cnt = 0;
-	expr_list_for_each_sym(prop->expr, e, sym) {
-		if (def == cnt++) {
-			sym->def[S_DEF_USER].tri = yes;
-			csym->def[S_DEF_USER].val = sym;
-		}
-		else {
-			sym->def[S_DEF_USER].tri = no;
-		}
-		sym->flags |= SYMBOL_DEF_USER;
-		/* clear VALID to get value calculated */
-		sym->flags &= ~SYMBOL_VALID;
-	}
-	csym->flags |= SYMBOL_DEF_USER;
-	/* clear VALID to get value calculated */
-	csym->flags &= ~(SYMBOL_VALID);
-
-	return true;
-}
-
-void set_all_choice_values(struct symbol *csym)
-{
-	struct property *prop;
-	struct symbol *sym;
-	struct expr *e;
-
-	prop = sym_get_choice_prop(csym);
-
-	/*
-	 * Set all non-assinged choice values to no
-	 */
-	expr_list_for_each_sym(prop->expr, e, sym) {
-		if (!sym_has_value(sym))
-			sym->def[S_DEF_USER].tri = no;
-	}
-	csym->flags |= SYMBOL_DEF_USER;
-	/* clear VALID to get value calculated */
-	csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);
-}
-
-bool conf_set_all_new_symbols(enum conf_def_mode mode)
-{
-	struct symbol *sym, *csym;
-	int i, cnt, pby, pty, ptm;	/* pby: probability of boolean  = y
-					 * pty: probability of tristate = y
-					 * ptm: probability of tristate = m
-					 */
-
-	pby = 50; pty = ptm = 33; /* can't go as the default in switch-case
-				   * below, otherwise gcc whines about
-				   * -Wmaybe-uninitialized */
-	if (mode == def_random) {
-		int n, p[3];
-		char *env = getenv("KCONFIG_PROBABILITY");
-		n = 0;
-		while( env && *env ) {
-			char *endp;
-			int tmp = strtol( env, &endp, 10 );
-			if( tmp >= 0 && tmp <= 100 ) {
-				p[n++] = tmp;
-			} else {
-				errno = ERANGE;
-				perror( "KCONFIG_PROBABILITY" );
-				exit( 1 );
-			}
-			env = (*endp == ':') ? endp+1 : endp;
-			if( n >=3 ) {
-				break;
-			}
-		}
-		switch( n ) {
-		case 1:
-			pby = p[0]; ptm = pby/2; pty = pby-ptm;
-			break;
-		case 2:
-			pty = p[0]; ptm = p[1]; pby = pty + ptm;
-			break;
-		case 3:
-			pby = p[0]; pty = p[1]; ptm = p[2];
-			break;
-		}
-
-		if( pty+ptm > 100 ) {
-			errno = ERANGE;
-			perror( "KCONFIG_PROBABILITY" );
-			exit( 1 );
-		}
-	}
-	bool has_changed = false;
-
-	for_all_symbols(i, sym) {
-		if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID))
-			continue;
-		switch (sym_get_type(sym)) {
-		case S_BOOLEAN:
-		case S_TRISTATE:
-			has_changed = true;
-			switch (mode) {
-			case def_yes:
-				sym->def[S_DEF_USER].tri = yes;
-				break;
-			case def_mod:
-				sym->def[S_DEF_USER].tri = mod;
-				break;
-			case def_no:
-				if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
-					sym->def[S_DEF_USER].tri = yes;
-				else
-					sym->def[S_DEF_USER].tri = no;
-				break;
-			case def_random:
-				sym->def[S_DEF_USER].tri = no;
-				cnt = rand() % 100;
-				if (sym->type == S_TRISTATE) {
-					if (cnt < pty)
-						sym->def[S_DEF_USER].tri = yes;
-					else if (cnt < (pty+ptm))
-						sym->def[S_DEF_USER].tri = mod;
-				} else if (cnt < pby)
-					sym->def[S_DEF_USER].tri = yes;
-				break;
-			default:
-				continue;
-			}
-			if (!(sym_is_choice(sym) && mode == def_random))
-				sym->flags |= SYMBOL_DEF_USER;
-			break;
-		default:
-			break;
-		}
-
-	}
-
-	sym_clear_all_valid();
-
-	/*
-	 * We have different type of choice blocks.
-	 * If curr.tri equals to mod then we can select several
-	 * choice symbols in one block.
-	 * In this case we do nothing.
-	 * If curr.tri equals yes then only one symbol can be
-	 * selected in a choice block and we set it to yes,
-	 * and the rest to no.
-	 */
-	if (mode != def_random) {
-		for_all_symbols(i, csym) {
-			if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
-			    sym_is_choice_value(csym))
-				csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
-		}
-	}
-
-	for_all_symbols(i, csym) {
-		if (sym_has_value(csym) || !sym_is_choice(csym))
-			continue;
-
-		sym_calc_value(csym);
-		if (mode == def_random)
-			has_changed = randomize_choice_values(csym);
-		else {
-			set_all_choice_values(csym);
-			has_changed = true;
-		}
-	}
-
-	return has_changed;
-}
diff --git a/scripts/kconfig_parser/kconfig/expr.c b/scripts/kconfig_parser/kconfig/expr.c
deleted file mode 100644
index d662652..0000000
--- a/scripts/kconfig_parser/kconfig/expr.c
+++ /dev/null
@@ -1,1168 +0,0 @@
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "lkc.h"
-
-#define DEBUG_EXPR	0
-
-struct expr *expr_alloc_symbol(struct symbol *sym)
-{
-	struct expr *e = xcalloc(1, sizeof(*e));
-	e->type = E_SYMBOL;
-	e->left.sym = sym;
-	return e;
-}
-
-struct expr *expr_alloc_one(enum expr_type type, struct expr *ce)
-{
-	struct expr *e = xcalloc(1, sizeof(*e));
-	e->type = type;
-	e->left.expr = ce;
-	return e;
-}
-
-struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2)
-{
-	struct expr *e = xcalloc(1, sizeof(*e));
-	e->type = type;
-	e->left.expr = e1;
-	e->right.expr = e2;
-	return e;
-}
-
-struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2)
-{
-	struct expr *e = xcalloc(1, sizeof(*e));
-	e->type = type;
-	e->left.sym = s1;
-	e->right.sym = s2;
-	return e;
-}
-
-struct expr *expr_alloc_and(struct expr *e1, struct expr *e2)
-{
-	if (!e1)
-		return e2;
-	return e2 ? expr_alloc_two(E_AND, e1, e2) : e1;
-}
-
-struct expr *expr_alloc_or(struct expr *e1, struct expr *e2)
-{
-	if (!e1)
-		return e2;
-	return e2 ? expr_alloc_two(E_OR, e1, e2) : e1;
-}
-
-struct expr *expr_copy(const struct expr *org)
-{
-	struct expr *e;
-
-	if (!org)
-		return NULL;
-
-	e = xmalloc(sizeof(*org));
-	memcpy(e, org, sizeof(*org));
-	switch (org->type) {
-	case E_SYMBOL:
-		e->left = org->left;
-		break;
-	case E_NOT:
-		e->left.expr = expr_copy(org->left.expr);
-		break;
-	case E_EQUAL:
-	case E_UNEQUAL:
-		e->left.sym = org->left.sym;
-		e->right.sym = org->right.sym;
-		break;
-	case E_AND:
-	case E_OR:
-	case E_LIST:
-		e->left.expr = expr_copy(org->left.expr);
-		e->right.expr = expr_copy(org->right.expr);
-		break;
-	default:
-		printf("can't copy type %d\n", e->type);
-		free(e);
-		e = NULL;
-		break;
-	}
-
-	return e;
-}
-
-void expr_free(struct expr *e)
-{
-	if (!e)
-		return;
-
-	switch (e->type) {
-	case E_SYMBOL:
-		break;
-	case E_NOT:
-		expr_free(e->left.expr);
-		return;
-	case E_EQUAL:
-	case E_UNEQUAL:
-		break;
-	case E_OR:
-	case E_AND:
-		expr_free(e->left.expr);
-		expr_free(e->right.expr);
-		break;
-	default:
-		printf("how to free type %d?\n", e->type);
-		break;
-	}
-	free(e);
-}
-
-static int trans_count;
-
-#define e1 (*ep1)
-#define e2 (*ep2)
-
-static void __expr_eliminate_eq(enum expr_type type, struct expr **ep1, struct expr **ep2)
-{
-	if (e1->type == type) {
-		__expr_eliminate_eq(type, &e1->left.expr, &e2);
-		__expr_eliminate_eq(type, &e1->right.expr, &e2);
-		return;
-	}
-	if (e2->type == type) {
-		__expr_eliminate_eq(type, &e1, &e2->left.expr);
-		__expr_eliminate_eq(type, &e1, &e2->right.expr);
-		return;
-	}
-	if (e1->type == E_SYMBOL && e2->type == E_SYMBOL &&
-	    e1->left.sym == e2->left.sym &&
-	    (e1->left.sym == &symbol_yes || e1->left.sym == &symbol_no))
-		return;
-	if (!expr_eq(e1, e2))
-		return;
-	trans_count++;
-	expr_free(e1); expr_free(e2);
-	switch (type) {
-	case E_OR:
-		e1 = expr_alloc_symbol(&symbol_no);
-		e2 = expr_alloc_symbol(&symbol_no);
-		break;
-	case E_AND:
-		e1 = expr_alloc_symbol(&symbol_yes);
-		e2 = expr_alloc_symbol(&symbol_yes);
-		break;
-	default:
-		;
-	}
-}
-
-void expr_eliminate_eq(struct expr **ep1, struct expr **ep2)
-{
-	if (!e1 || !e2)
-		return;
-	switch (e1->type) {
-	case E_OR:
-	case E_AND:
-		__expr_eliminate_eq(e1->type, ep1, ep2);
-	default:
-		;
-	}
-	if (e1->type != e2->type) switch (e2->type) {
-	case E_OR:
-	case E_AND:
-		__expr_eliminate_eq(e2->type, ep1, ep2);
-	default:
-		;
-	}
-	e1 = expr_eliminate_yn(e1);
-	e2 = expr_eliminate_yn(e2);
-}
-
-#undef e1
-#undef e2
-
-int expr_eq(struct expr *e1, struct expr *e2)
-{
-	int res, old_count;
-
-	if (e1->type != e2->type)
-		return 0;
-	switch (e1->type) {
-	case E_EQUAL:
-	case E_UNEQUAL:
-		return e1->left.sym == e2->left.sym && e1->right.sym == e2->right.sym;
-	case E_SYMBOL:
-		return e1->left.sym == e2->left.sym;
-	case E_NOT:
-		return expr_eq(e1->left.expr, e2->left.expr);
-	case E_AND:
-	case E_OR:
-		e1 = expr_copy(e1);
-		e2 = expr_copy(e2);
-		old_count = trans_count;
-		expr_eliminate_eq(&e1, &e2);
-		res = (e1->type == E_SYMBOL && e2->type == E_SYMBOL &&
-		       e1->left.sym == e2->left.sym);
-		expr_free(e1);
-		expr_free(e2);
-		trans_count = old_count;
-		return res;
-	case E_LIST:
-	case E_RANGE:
-	case E_NONE:
-		/* panic */;
-	}
-
-	if (DEBUG_EXPR) {
-		expr_fprint(e1, stdout);
-		printf(" = ");
-		expr_fprint(e2, stdout);
-		printf(" ?\n");
-	}
-
-	return 0;
-}
-
-struct expr *expr_eliminate_yn(struct expr *e)
-{
-	struct expr *tmp;
-
-	if (e) switch (e->type) {
-	case E_AND:
-		e->left.expr = expr_eliminate_yn(e->left.expr);
-		e->right.expr = expr_eliminate_yn(e->right.expr);
-		if (e->left.expr->type == E_SYMBOL) {
-			if (e->left.expr->left.sym == &symbol_no) {
-				expr_free(e->left.expr);
-				expr_free(e->right.expr);
-				e->type = E_SYMBOL;
-				e->left.sym = &symbol_no;
-				e->right.expr = NULL;
-				return e;
-			} else if (e->left.expr->left.sym == &symbol_yes) {
-				free(e->left.expr);
-				tmp = e->right.expr;
-				*e = *(e->right.expr);
-				free(tmp);
-				return e;
-			}
-		}
-		if (e->right.expr->type == E_SYMBOL) {
-			if (e->right.expr->left.sym == &symbol_no) {
-				expr_free(e->left.expr);
-				expr_free(e->right.expr);
-				e->type = E_SYMBOL;
-				e->left.sym = &symbol_no;
-				e->right.expr = NULL;
-				return e;
-			} else if (e->right.expr->left.sym == &symbol_yes) {
-				free(e->right.expr);
-				tmp = e->left.expr;
-				*e = *(e->left.expr);
-				free(tmp);
-				return e;
-			}
-		}
-		break;
-	case E_OR:
-		e->left.expr = expr_eliminate_yn(e->left.expr);
-		e->right.expr = expr_eliminate_yn(e->right.expr);
-		if (e->left.expr->type == E_SYMBOL) {
-			if (e->left.expr->left.sym == &symbol_no) {
-				free(e->left.expr);
-				tmp = e->right.expr;
-				*e = *(e->right.expr);
-				free(tmp);
-				return e;
-			} else if (e->left.expr->left.sym == &symbol_yes) {
-				expr_free(e->left.expr);
-				expr_free(e->right.expr);
-				e->type = E_SYMBOL;
-				e->left.sym = &symbol_yes;
-				e->right.expr = NULL;
-				return e;
-			}
-		}
-		if (e->right.expr->type == E_SYMBOL) {
-			if (e->right.expr->left.sym == &symbol_no) {
-				free(e->right.expr);
-				tmp = e->left.expr;
-				*e = *(e->left.expr);
-				free(tmp);
-				return e;
-			} else if (e->right.expr->left.sym == &symbol_yes) {
-				expr_free(e->left.expr);
-				expr_free(e->right.expr);
-				e->type = E_SYMBOL;
-				e->left.sym = &symbol_yes;
-				e->right.expr = NULL;
-				return e;
-			}
-		}
-		break;
-	default:
-		;
-	}
-	return e;
-}
-
-/*
- * bool FOO!=n => FOO
- */
-struct expr *expr_trans_bool(struct expr *e)
-{
-	if (!e)
-		return NULL;
-	switch (e->type) {
-	case E_AND:
-	case E_OR:
-	case E_NOT:
-		e->left.expr = expr_trans_bool(e->left.expr);
-		e->right.expr = expr_trans_bool(e->right.expr);
-		break;
-	case E_UNEQUAL:
-		// FOO!=n -> FOO
-		if (e->left.sym->type == S_TRISTATE) {
-			if (e->right.sym == &symbol_no) {
-				e->type = E_SYMBOL;
-				e->right.sym = NULL;
-			}
-		}
-		break;
-	default:
-		;
-	}
-	return e;
-}
-
-/*
- * e1 || e2 -> ?
- */
-static struct expr *expr_join_or(struct expr *e1, struct expr *e2)
-{
-	struct expr *tmp;
-	struct symbol *sym1, *sym2;
-
-	if (expr_eq(e1, e2))
-		return expr_copy(e1);
-	if (e1->type != E_EQUAL && e1->type != E_UNEQUAL && e1->type != E_SYMBOL && e1->type != E_NOT)
-		return NULL;
-	if (e2->type != E_EQUAL && e2->type != E_UNEQUAL && e2->type != E_SYMBOL && e2->type != E_NOT)
-		return NULL;
-	if (e1->type == E_NOT) {
-		tmp = e1->left.expr;
-		if (tmp->type != E_EQUAL && tmp->type != E_UNEQUAL && tmp->type != E_SYMBOL)
-			return NULL;
-		sym1 = tmp->left.sym;
-	} else
-		sym1 = e1->left.sym;
-	if (e2->type == E_NOT) {
-		if (e2->left.expr->type != E_SYMBOL)
-			return NULL;
-		sym2 = e2->left.expr->left.sym;
-	} else
-		sym2 = e2->left.sym;
-	if (sym1 != sym2)
-		return NULL;
-	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)
-		return NULL;
-	if (sym1->type == S_TRISTATE) {
-		if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
-		    ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_mod) ||
-		     (e1->right.sym == &symbol_mod && e2->right.sym == &symbol_yes))) {
-			// (a='y') || (a='m') -> (a!='n')
-			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_no);
-		}
-		if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
-		    ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_no) ||
-		     (e1->right.sym == &symbol_no && e2->right.sym == &symbol_yes))) {
-			// (a='y') || (a='n') -> (a!='m')
-			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_mod);
-		}
-		if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
-		    ((e1->right.sym == &symbol_mod && e2->right.sym == &symbol_no) ||
-		     (e1->right.sym == &symbol_no && e2->right.sym == &symbol_mod))) {
-			// (a='m') || (a='n') -> (a!='y')
-			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_yes);
-		}
-	}
-	if (sym1->type == S_BOOLEAN && sym1 == sym2) {
-		if ((e1->type == E_NOT && e1->left.expr->type == E_SYMBOL && e2->type == E_SYMBOL) ||
-		    (e2->type == E_NOT && e2->left.expr->type == E_SYMBOL && e1->type == E_SYMBOL))
-			return expr_alloc_symbol(&symbol_yes);
-	}
-
-	if (DEBUG_EXPR) {
-		printf("optimize (");
-		expr_fprint(e1, stdout);
-		printf(") || (");
-		expr_fprint(e2, stdout);
-		printf(")?\n");
-	}
-	return NULL;
-}
-
-static struct expr *expr_join_and(struct expr *e1, struct expr *e2)
-{
-	struct expr *tmp;
-	struct symbol *sym1, *sym2;
-
-	if (expr_eq(e1, e2))
-		return expr_copy(e1);
-	if (e1->type != E_EQUAL && e1->type != E_UNEQUAL && e1->type != E_SYMBOL && e1->type != E_NOT)
-		return NULL;
-	if (e2->type != E_EQUAL && e2->type != E_UNEQUAL && e2->type != E_SYMBOL && e2->type != E_NOT)
-		return NULL;
-	if (e1->type == E_NOT) {
-		tmp = e1->left.expr;
-		if (tmp->type != E_EQUAL && tmp->type != E_UNEQUAL && tmp->type != E_SYMBOL)
-			return NULL;
-		sym1 = tmp->left.sym;
-	} else
-		sym1 = e1->left.sym;
-	if (e2->type == E_NOT) {
-		if (e2->left.expr->type != E_SYMBOL)
-			return NULL;
-		sym2 = e2->left.expr->left.sym;
-	} else
-		sym2 = e2->left.sym;
-	if (sym1 != sym2)
-		return NULL;
-	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)
-		return NULL;
-
-	if ((e1->type == E_SYMBOL && e2->type == E_EQUAL && e2->right.sym == &symbol_yes) ||
-	    (e2->type == E_SYMBOL && e1->type == E_EQUAL && e1->right.sym == &symbol_yes))
-		// (a) && (a='y') -> (a='y')
-		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
-
-	if ((e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_no) ||
-	    (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_no))
-		// (a) && (a!='n') -> (a)
-		return expr_alloc_symbol(sym1);
-
-	if ((e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_mod) ||
-	    (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_mod))
-		// (a) && (a!='m') -> (a='y')
-		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
-
-	if (sym1->type == S_TRISTATE) {
-		if (e1->type == E_EQUAL && e2->type == E_UNEQUAL) {
-			// (a='b') && (a!='c') -> 'b'='c' ? 'n' : a='b'
-			sym2 = e1->right.sym;
-			if ((e2->right.sym->flags & SYMBOL_CONST) && (sym2->flags & SYMBOL_CONST))
-				return sym2 != e2->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)
-							     : expr_alloc_symbol(&symbol_no);
-		}
-		if (e1->type == E_UNEQUAL && e2->type == E_EQUAL) {
-			// (a='b') && (a!='c') -> 'b'='c' ? 'n' : a='b'
-			sym2 = e2->right.sym;
-			if ((e1->right.sym->flags & SYMBOL_CONST) && (sym2->flags & SYMBOL_CONST))
-				return sym2 != e1->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)
-							     : expr_alloc_symbol(&symbol_no);
-		}
-		if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
-			   ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_no) ||
-			    (e1->right.sym == &symbol_no && e2->right.sym == &symbol_yes)))
-			// (a!='y') && (a!='n') -> (a='m')
-			return expr_alloc_comp(E_EQUAL, sym1, &symbol_mod);
-
-		if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
-			   ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_mod) ||
-			    (e1->right.sym == &symbol_mod && e2->right.sym == &symbol_yes)))
-			// (a!='y') && (a!='m') -> (a='n')
-			return expr_alloc_comp(E_EQUAL, sym1, &symbol_no);
-
-		if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
-			   ((e1->right.sym == &symbol_mod && e2->right.sym == &symbol_no) ||
-			    (e1->right.sym == &symbol_no && e2->right.sym == &symbol_mod)))
-			// (a!='m') && (a!='n') -> (a='m')
-			return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
-
-		if ((e1->type == E_SYMBOL && e2->type == E_EQUAL && e2->right.sym == &symbol_mod) ||
-		    (e2->type == E_SYMBOL && e1->type == E_EQUAL && e1->right.sym == &symbol_mod) ||
-		    (e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_yes) ||
-		    (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_yes))
-			return NULL;
-	}
-
-	if (DEBUG_EXPR) {
-		printf("optimize (");
-		expr_fprint(e1, stdout);
-		printf(") && (");
-		expr_fprint(e2, stdout);
-		printf(")?\n");
-	}
-	return NULL;
-}
-
-static void expr_eliminate_dups1(enum expr_type type, struct expr **ep1, struct expr **ep2)
-{
-#define e1 (*ep1)
-#define e2 (*ep2)
-	struct expr *tmp;
-
-	if (e1->type == type) {
-		expr_eliminate_dups1(type, &e1->left.expr, &e2);
-		expr_eliminate_dups1(type, &e1->right.expr, &e2);
-		return;
-	}
-	if (e2->type == type) {
-		expr_eliminate_dups1(type, &e1, &e2->left.expr);
-		expr_eliminate_dups1(type, &e1, &e2->right.expr);
-		return;
-	}
-	if (e1 == e2)
-		return;
-
-	switch (e1->type) {
-	case E_OR: case E_AND:
-		expr_eliminate_dups1(e1->type, &e1, &e1);
-	default:
-		;
-	}
-
-	switch (type) {
-	case E_OR:
-		tmp = expr_join_or(e1, e2);
-		if (tmp) {
-			expr_free(e1); expr_free(e2);
-			e1 = expr_alloc_symbol(&symbol_no);
-			e2 = tmp;
-			trans_count++;
-		}
-		break;
-	case E_AND:
-		tmp = expr_join_and(e1, e2);
-		if (tmp) {
-			expr_free(e1); expr_free(e2);
-			e1 = expr_alloc_symbol(&symbol_yes);
-			e2 = tmp;
-			trans_count++;
-		}
-		break;
-	default:
-		;
-	}
-#undef e1
-#undef e2
-}
-
-static void expr_eliminate_dups2(enum expr_type type, struct expr **ep1, struct expr **ep2)
-{
-#define e1 (*ep1)
-#define e2 (*ep2)
-	struct expr *tmp, *tmp1, *tmp2;
-
-	if (e1->type == type) {
-		expr_eliminate_dups2(type, &e1->left.expr, &e2);
-		expr_eliminate_dups2(type, &e1->right.expr, &e2);
-		return;
-	}
-	if (e2->type == type) {
-		expr_eliminate_dups2(type, &e1, &e2->left.expr);
-		expr_eliminate_dups2(type, &e1, &e2->right.expr);
-	}
-	if (e1 == e2)
-		return;
-
-	switch (e1->type) {
-	case E_OR:
-		expr_eliminate_dups2(e1->type, &e1, &e1);
-		// (FOO || BAR) && (!FOO && !BAR) -> n
-		tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
-		tmp2 = expr_copy(e2);
-		tmp = expr_extract_eq_and(&tmp1, &tmp2);
-		if (expr_is_yes(tmp1)) {
-			expr_free(e1);
-			e1 = expr_alloc_symbol(&symbol_no);
-			trans_count++;
-		}
-		expr_free(tmp2);
-		expr_free(tmp1);
-		expr_free(tmp);
-		break;
-	case E_AND:
-		expr_eliminate_dups2(e1->type, &e1, &e1);
-		// (FOO && BAR) || (!FOO || !BAR) -> y
-		tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
-		tmp2 = expr_copy(e2);
-		tmp = expr_extract_eq_or(&tmp1, &tmp2);
-		if (expr_is_no(tmp1)) {
-			expr_free(e1);
-			e1 = expr_alloc_symbol(&symbol_yes);
-			trans_count++;
-		}
-		expr_free(tmp2);
-		expr_free(tmp1);
-		expr_free(tmp);
-		break;
-	default:
-		;
-	}
-#undef e1
-#undef e2
-}
-
-struct expr *expr_eliminate_dups(struct expr *e)
-{
-	int oldcount;
-	if (!e)
-		return e;
-
-	oldcount = trans_count;
-	while (1) {
-		trans_count = 0;
-		switch (e->type) {
-		case E_OR: case E_AND:
-			expr_eliminate_dups1(e->type, &e, &e);
-			expr_eliminate_dups2(e->type, &e, &e);
-		default:
-			;
-		}
-		if (!trans_count)
-			break;
-		e = expr_eliminate_yn(e);
-	}
-	trans_count = oldcount;
-	return e;
-}
-
-struct expr *expr_transform(struct expr *e)
-{
-	struct expr *tmp;
-
-	if (!e)
-		return NULL;
-	switch (e->type) {
-	case E_EQUAL:
-	case E_UNEQUAL:
-	case E_SYMBOL:
-	case E_LIST:
-		break;
-	default:
-		e->left.expr = expr_transform(e->left.expr);
-		e->right.expr = expr_transform(e->right.expr);
-	}
-
-	switch (e->type) {
-	case E_EQUAL:
-		if (e->left.sym->type != S_BOOLEAN)
-			break;
-		if (e->right.sym == &symbol_no) {
-			e->type = E_NOT;
-			e->left.expr = expr_alloc_symbol(e->left.sym);
-			e->right.sym = NULL;
-			break;
-		}
-		if (e->right.sym == &symbol_mod) {
-			printf("boolean symbol %s tested for 'm'? test forced to 'n'\n", e->left.sym->name);
-			e->type = E_SYMBOL;
-			e->left.sym = &symbol_no;
-			e->right.sym = NULL;
-			break;
-		}
-		if (e->right.sym == &symbol_yes) {
-			e->type = E_SYMBOL;
-			e->right.sym = NULL;
-			break;
-		}
-		break;
-	case E_UNEQUAL:
-		if (e->left.sym->type != S_BOOLEAN)
-			break;
-		if (e->right.sym == &symbol_no) {
-			e->type = E_SYMBOL;
-			e->right.sym = NULL;
-			break;
-		}
-		if (e->right.sym == &symbol_mod) {
-			printf("boolean symbol %s tested for 'm'? test forced to 'y'\n", e->left.sym->name);
-			e->type = E_SYMBOL;
-			e->left.sym = &symbol_yes;
-			e->right.sym = NULL;
-			break;
-		}
-		if (e->right.sym == &symbol_yes) {
-			e->type = E_NOT;
-			e->left.expr = expr_alloc_symbol(e->left.sym);
-			e->right.sym = NULL;
-			break;
-		}
-		break;
-	case E_NOT:
-		switch (e->left.expr->type) {
-		case E_NOT:
-			// !!a -> a
-			tmp = e->left.expr->left.expr;
-			free(e->left.expr);
-			free(e);
-			e = tmp;
-			e = expr_transform(e);
-			break;
-		case E_EQUAL:
-		case E_UNEQUAL:
-			// !a='x' -> a!='x'
-			tmp = e->left.expr;
-			free(e);
-			e = tmp;
-			e->type = e->type == E_EQUAL ? E_UNEQUAL : E_EQUAL;
-			break;
-		case E_OR:
-			// !(a || b) -> !a && !b
-			tmp = e->left.expr;
-			e->type = E_AND;
-			e->right.expr = expr_alloc_one(E_NOT, tmp->right.expr);
-			tmp->type = E_NOT;
-			tmp->right.expr = NULL;
-			e = expr_transform(e);
-			break;
-		case E_AND:
-			// !(a && b) -> !a || !b
-			tmp = e->left.expr;
-			e->type = E_OR;
-			e->right.expr = expr_alloc_one(E_NOT, tmp->right.expr);
-			tmp->type = E_NOT;
-			tmp->right.expr = NULL;
-			e = expr_transform(e);
-			break;
-		case E_SYMBOL:
-			if (e->left.expr->left.sym == &symbol_yes) {
-				// !'y' -> 'n'
-				tmp = e->left.expr;
-				free(e);
-				e = tmp;
-				e->type = E_SYMBOL;
-				e->left.sym = &symbol_no;
-				break;
-			}
-			if (e->left.expr->left.sym == &symbol_mod) {
-				// !'m' -> 'm'
-				tmp = e->left.expr;
-				free(e);
-				e = tmp;
-				e->type = E_SYMBOL;
-				e->left.sym = &symbol_mod;
-				break;
-			}
-			if (e->left.expr->left.sym == &symbol_no) {
-				// !'n' -> 'y'
-				tmp = e->left.expr;
-				free(e);
-				e = tmp;
-				e->type = E_SYMBOL;
-				e->left.sym = &symbol_yes;
-				break;
-			}
-			break;
-		default:
-			;
-		}
-		break;
-	default:
-		;
-	}
-	return e;
-}
-
-int expr_contains_symbol(struct expr *dep, struct symbol *sym)
-{
-	if (!dep)
-		return 0;
-
-	switch (dep->type) {
-	case E_AND:
-	case E_OR:
-		return expr_contains_symbol(dep->left.expr, sym) ||
-		       expr_contains_symbol(dep->right.expr, sym);
-	case E_SYMBOL:
-		return dep->left.sym == sym;
-	case E_EQUAL:
-	case E_UNEQUAL:
-		return dep->left.sym == sym ||
-		       dep->right.sym == sym;
-	case E_NOT:
-		return expr_contains_symbol(dep->left.expr, sym);
-	default:
-		;
-	}
-	return 0;
-}
-
-bool expr_depends_symbol(struct expr *dep, struct symbol *sym)
-{
-	if (!dep)
-		return false;
-
-	switch (dep->type) {
-	case E_AND:
-		return expr_depends_symbol(dep->left.expr, sym) ||
-		       expr_depends_symbol(dep->right.expr, sym);
-	case E_SYMBOL:
-		return dep->left.sym == sym;
-	case E_EQUAL:
-		if (dep->left.sym == sym) {
-			if (dep->right.sym == &symbol_yes || dep->right.sym == &symbol_mod)
-				return true;
-		}
-		break;
-	case E_UNEQUAL:
-		if (dep->left.sym == sym) {
-			if (dep->right.sym == &symbol_no)
-				return true;
-		}
-		break;
-	default:
-		;
-	}
- 	return false;
-}
-
-struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
-{
-	struct expr *tmp = NULL;
-	expr_extract_eq(E_AND, &tmp, ep1, ep2);
-	if (tmp) {
-		*ep1 = expr_eliminate_yn(*ep1);
-		*ep2 = expr_eliminate_yn(*ep2);
-	}
-	return tmp;
-}
-
-struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
-{
-	struct expr *tmp = NULL;
-	expr_extract_eq(E_OR, &tmp, ep1, ep2);
-	if (tmp) {
-		*ep1 = expr_eliminate_yn(*ep1);
-		*ep2 = expr_eliminate_yn(*ep2);
-	}
-	return tmp;
-}
-
-void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2)
-{
-#define e1 (*ep1)
-#define e2 (*ep2)
-	if (e1->type == type) {
-		expr_extract_eq(type, ep, &e1->left.expr, &e2);
-		expr_extract_eq(type, ep, &e1->right.expr, &e2);
-		return;
-	}
-	if (e2->type == type) {
-		expr_extract_eq(type, ep, ep1, &e2->left.expr);
-		expr_extract_eq(type, ep, ep1, &e2->right.expr);
-		return;
-	}
-	if (expr_eq(e1, e2)) {
-		*ep = *ep ? expr_alloc_two(type, *ep, e1) : e1;
-		expr_free(e2);
-		if (type == E_AND) {
-			e1 = expr_alloc_symbol(&symbol_yes);
-			e2 = expr_alloc_symbol(&symbol_yes);
-		} else if (type == E_OR) {
-			e1 = expr_alloc_symbol(&symbol_no);
-			e2 = expr_alloc_symbol(&symbol_no);
-		}
-	}
-#undef e1
-#undef e2
-}
-
-struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym)
-{
-	struct expr *e1, *e2;
-
-	if (!e) {
-		e = expr_alloc_symbol(sym);
-		if (type == E_UNEQUAL)
-			e = expr_alloc_one(E_NOT, e);
-		return e;
-	}
-	switch (e->type) {
-	case E_AND:
-		e1 = expr_trans_compare(e->left.expr, E_EQUAL, sym);
-		e2 = expr_trans_compare(e->right.expr, E_EQUAL, sym);
-		if (sym == &symbol_yes)
-			e = expr_alloc_two(E_AND, e1, e2);
-		if (sym == &symbol_no)
-			e = expr_alloc_two(E_OR, e1, e2);
-		if (type == E_UNEQUAL)
-			e = expr_alloc_one(E_NOT, e);
-		return e;
-	case E_OR:
-		e1 = expr_trans_compare(e->left.expr, E_EQUAL, sym);
-		e2 = expr_trans_compare(e->right.expr, E_EQUAL, sym);
-		if (sym == &symbol_yes)
-			e = expr_alloc_two(E_OR, e1, e2);
-		if (sym == &symbol_no)
-			e = expr_alloc_two(E_AND, e1, e2);
-		if (type == E_UNEQUAL)
-			e = expr_alloc_one(E_NOT, e);
-		return e;
-	case E_NOT:
-		return expr_trans_compare(e->left.expr, type == E_EQUAL ? E_UNEQUAL : E_EQUAL, sym);
-	case E_UNEQUAL:
-	case E_EQUAL:
-		if (type == E_EQUAL) {
-			if (sym == &symbol_yes)
-				return expr_copy(e);
-			if (sym == &symbol_mod)
-				return expr_alloc_symbol(&symbol_no);
-			if (sym == &symbol_no)
-				return expr_alloc_one(E_NOT, expr_copy(e));
-		} else {
-			if (sym == &symbol_yes)
-				return expr_alloc_one(E_NOT, expr_copy(e));
-			if (sym == &symbol_mod)
-				return expr_alloc_symbol(&symbol_yes);
-			if (sym == &symbol_no)
-				return expr_copy(e);
-		}
-		break;
-	case E_SYMBOL:
-		return expr_alloc_comp(type, e->left.sym, sym);
-	case E_LIST:
-	case E_RANGE:
-	case E_NONE:
-		/* panic */;
-	}
-	return NULL;
-}
-
-tristate expr_calc_value(struct expr *e)
-{
-	tristate val1, val2;
-	const char *str1, *str2;
-
-	if (!e)
-		return yes;
-
-	switch (e->type) {
-	case E_SYMBOL:
-		sym_calc_value(e->left.sym);
-		return e->left.sym->curr.tri;
-	case E_AND:
-		val1 = expr_calc_value(e->left.expr);
-		val2 = expr_calc_value(e->right.expr);
-		return EXPR_AND(val1, val2);
-	case E_OR:
-		val1 = expr_calc_value(e->left.expr);
-		val2 = expr_calc_value(e->right.expr);
-		return EXPR_OR(val1, val2);
-	case E_NOT:
-		val1 = expr_calc_value(e->left.expr);
-		return EXPR_NOT(val1);
-	case E_EQUAL:
-		sym_calc_value(e->left.sym);
-		sym_calc_value(e->right.sym);
-		str1 = sym_get_string_value(e->left.sym);
-		str2 = sym_get_string_value(e->right.sym);
-		return !strcmp(str1, str2) ? yes : no;
-	case E_UNEQUAL:
-		sym_calc_value(e->left.sym);
-		sym_calc_value(e->right.sym);
-		str1 = sym_get_string_value(e->left.sym);
-		str2 = sym_get_string_value(e->right.sym);
-		return !strcmp(str1, str2) ? no : yes;
-	default:
-		printf("expr_calc_value: %d?\n", e->type);
-		return no;
-	}
-}
-
-int expr_compare_type(enum expr_type t1, enum expr_type t2)
-{
-#if 0
-	return 1;
-#else
-	if (t1 == t2)
-		return 0;
-	switch (t1) {
-	case E_EQUAL:
-	case E_UNEQUAL:
-		if (t2 == E_NOT)
-			return 1;
-	case E_NOT:
-		if (t2 == E_AND)
-			return 1;
-	case E_AND:
-		if (t2 == E_OR)
-			return 1;
-	case E_OR:
-		if (t2 == E_LIST)
-			return 1;
-	case E_LIST:
-		if (t2 == 0)
-			return 1;
-	default:
-		return -1;
-	}
-	printf("[%dgt%d?]", t1, t2);
-	return 0;
-#endif
-}
-
-static inline struct expr *
-expr_get_leftmost_symbol(const struct expr *e)
-{
-
-	if (e == NULL)
-		return NULL;
-
-	while (e->type != E_SYMBOL)
-		e = e->left.expr;
-
-	return expr_copy(e);
-}
-
-/*
- * Given expression `e1' and `e2', returns the leaf of the longest
- * sub-expression of `e1' not containing 'e2.
- */
-struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2)
-{
-	struct expr *ret;
-
-	switch (e1->type) {
-	case E_OR:
-		return expr_alloc_and(
-		    expr_simplify_unmet_dep(e1->left.expr, e2),
-		    expr_simplify_unmet_dep(e1->right.expr, e2));
-	case E_AND: {
-		struct expr *e;
-		e = expr_alloc_and(expr_copy(e1), expr_copy(e2));
-		e = expr_eliminate_dups(e);
-		ret = (!expr_eq(e, e1)) ? e1 : NULL;
-		expr_free(e);
-		break;
-		}
-	default:
-		ret = e1;
-		break;
-	}
-
-	return expr_get_leftmost_symbol(ret);
-}
-
-void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken)
-{
-	if (!e) {
-		fn(data, NULL, "y");
-		return;
-	}
-
-	if (expr_compare_type(prevtoken, e->type) > 0)
-		fn(data, NULL, "(");
-	switch (e->type) {
-	case E_SYMBOL:
-		if (e->left.sym->name)
-			fn(data, e->left.sym, e->left.sym->name);
-		else
-			fn(data, NULL, "<choice>");
-		break;
-	case E_NOT:
-		fn(data, NULL, "!");
-		expr_print(e->left.expr, fn, data, E_NOT);
-		break;
-	case E_EQUAL:
-		if (e->left.sym->name)
-			fn(data, e->left.sym, e->left.sym->name);
-		else
-			fn(data, NULL, "<choice>");
-		fn(data, NULL, "=");
-		fn(data, e->right.sym, e->right.sym->name);
-		break;
-	case E_UNEQUAL:
-		if (e->left.sym->name)
-			fn(data, e->left.sym, e->left.sym->name);
-		else
-			fn(data, NULL, "<choice>");
-		fn(data, NULL, "!=");
-		fn(data, e->right.sym, e->right.sym->name);
-		break;
-	case E_OR:
-		expr_print(e->left.expr, fn, data, E_OR);
-		fn(data, NULL, " || ");
-		expr_print(e->right.expr, fn, data, E_OR);
-		break;
-	case E_AND:
-		expr_print(e->left.expr, fn, data, E_AND);
-		fn(data, NULL, " && ");
-		expr_print(e->right.expr, fn, data, E_AND);
-		break;
-	case E_LIST:
-		fn(data, e->right.sym, e->right.sym->name);
-		if (e->left.expr) {
-			fn(data, NULL, " ^ ");
-			expr_print(e->left.expr, fn, data, E_LIST);
-		}
-		break;
-	case E_RANGE:
-		fn(data, NULL, "[");
-		fn(data, e->left.sym, e->left.sym->name);
-		fn(data, NULL, " ");
-		fn(data, e->right.sym, e->right.sym->name);
-		fn(data, NULL, "]");
-		break;
-	default:
-	  {
-		char buf[32];
-		sprintf(buf, "<unknown type %d>", e->type);
-		fn(data, NULL, buf);
-		break;
-	  }
-	}
-	if (expr_compare_type(prevtoken, e->type) > 0)
-		fn(data, NULL, ")");
-}
-
-static void expr_print_file_helper(void *data, struct symbol *sym, const char *str)
-{
-	xfwrite(str, strlen(str), 1, data);
-}
-
-void expr_fprint(struct expr *e, FILE *out)
-{
-	expr_print(e, expr_print_file_helper, out, E_NONE);
-}
-
-static void expr_print_gstr_helper(void *data, struct symbol *sym, const char *str)
-{
-	struct gstr *gs = (struct gstr*)data;
-	const char *sym_str = NULL;
-
-	if (sym)
-		sym_str = sym_get_string_value(sym);
-
-	if (gs->max_width) {
-		unsigned extra_length = strlen(str);
-		const char *last_cr = strrchr(gs->s, '\n');
-		unsigned last_line_length;
-
-		if (sym_str)
-			extra_length += 4 + strlen(sym_str);
-
-		if (!last_cr)
-			last_cr = gs->s;
-
-		last_line_length = strlen(gs->s) - (last_cr - gs->s);
-
-		if ((last_line_length + extra_length) > gs->max_width)
-			str_append(gs, "\\\n");
-	}
-
-	str_append(gs, str);
-	if (sym && sym->type != S_UNKNOWN)
-		str_printf(gs, " [=%s]", sym_str);
-}
-
-void expr_gstr_print(struct expr *e, struct gstr *gs)
-{
-	expr_print(e, expr_print_gstr_helper, gs, E_NONE);
-}
diff --git a/scripts/kconfig_parser/kconfig/expr.h b/scripts/kconfig_parser/kconfig/expr.h
deleted file mode 100644
index 412ea8a..0000000
--- a/scripts/kconfig_parser/kconfig/expr.h
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#ifndef EXPR_H
-#define EXPR_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <assert.h>
-#include <stdio.h>
-#include "list.h"
-#ifndef __cplusplus
-#include <stdbool.h>
-#endif
-
-struct file {
-	struct file *next;
-	struct file *parent;
-	const char *name;
-	int lineno;
-};
-
-typedef enum tristate {
-	no, mod, yes
-} tristate;
-
-enum expr_type {
-	E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
-};
-
-union expr_data {
-	struct expr *expr;
-	struct symbol *sym;
-};
-
-struct expr {
-	enum expr_type type;
-	union expr_data left, right;
-};
-
-#define EXPR_OR(dep1, dep2)	(((dep1)>(dep2))?(dep1):(dep2))
-#define EXPR_AND(dep1, dep2)	(((dep1)<(dep2))?(dep1):(dep2))
-#define EXPR_NOT(dep)		(2-(dep))
-
-#define expr_list_for_each_sym(l, e, s) \
-	for (e = (l); e && (s = e->right.sym); e = e->left.expr)
-
-struct expr_value {
-	struct expr *expr;
-	tristate tri;
-};
-
-struct symbol_value {
-	void *val;
-	tristate tri;
-};
-
-enum symbol_type {
-	S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
-};
-
-/* enum values are used as index to symbol.def[] */
-enum {
-	S_DEF_USER,		/* main user value */
-	S_DEF_AUTO,		/* values read from auto.conf */
-	S_DEF_DEF3,		/* Reserved for UI usage */
-	S_DEF_DEF4,		/* Reserved for UI usage */
-	S_DEF_COUNT
-};
-
-struct symbol {
-	struct symbol *next;
-	char *name;
-	enum symbol_type type;
-	struct symbol_value curr;
-	struct symbol_value def[S_DEF_COUNT];
-	tristate visible;
-	int flags;
-	struct property *prop;
-	struct expr_value dir_dep;
-	struct expr_value rev_dep;
-};
-
-#define for_all_symbols(i, sym) for (i = 0; i < SYMBOL_HASHSIZE; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
-
-#define SYMBOL_CONST      0x0001  /* symbol is const */
-#define SYMBOL_CHECK      0x0008  /* used during dependency checking */
-#define SYMBOL_CHOICE     0x0010  /* start of a choice block (null name) */
-#define SYMBOL_CHOICEVAL  0x0020  /* used as a value in a choice block */
-#define SYMBOL_VALID      0x0080  /* set when symbol.curr is calculated */
-#define SYMBOL_OPTIONAL   0x0100  /* choice is optional - values can be 'n' */
-#define SYMBOL_WRITE      0x0200  /* write symbol to file (KCONFIG_CONFIG) */
-#define SYMBOL_CHANGED    0x0400  /* ? */
-#define SYMBOL_AUTO       0x1000  /* value from environment variable */
-#define SYMBOL_CHECKED    0x2000  /* used during dependency checking */
-#define SYMBOL_WARNED     0x8000  /* warning has been issued */
-
-/* Set when symbol.def[] is used */
-#define SYMBOL_DEF        0x10000  /* First bit of SYMBOL_DEF */
-#define SYMBOL_DEF_USER   0x10000  /* symbol.def[S_DEF_USER] is valid */
-#define SYMBOL_DEF_AUTO   0x20000  /* symbol.def[S_DEF_AUTO] is valid */
-#define SYMBOL_DEF3       0x40000  /* symbol.def[S_DEF_3] is valid */
-#define SYMBOL_DEF4       0x80000  /* symbol.def[S_DEF_4] is valid */
-
-/* choice values need to be set before calculating this symbol value */
-#define SYMBOL_NEED_SET_CHOICE_VALUES  0x100000
-
-/* Set symbol to y if allnoconfig; used for symbols that hide others */
-#define SYMBOL_ALLNOCONFIG_Y 0x200000
-
-#define SYMBOL_MAXLENGTH	256
-#define SYMBOL_HASHSIZE		9973
-
-/* A property represent the config options that can be associated
- * with a config "symbol".
- * Sample:
- * config FOO
- *         default y
- *         prompt "foo prompt"
- *         select BAR
- * config BAZ
- *         int "BAZ Value"
- *         range 1..255
- */
-enum prop_type {
-	P_UNKNOWN,
-	P_PROMPT,   /* prompt "foo prompt" or "BAZ Value" */
-	P_COMMENT,  /* text associated with a comment */
-	P_MENU,     /* prompt associated with a menuconfig option */
-	P_DEFAULT,  /* default y */
-	P_CHOICE,   /* choice value */
-	P_SELECT,   /* select BAR */
-	P_RANGE,    /* range 7..100 (for a symbol) */
-	P_ENV,      /* value from environment variable */
-	P_SYMBOL,   /* where a symbol is defined */
-};
-
-struct property {
-	struct property *next;     /* next property - null if last */
-	struct symbol *sym;        /* the symbol for which the property is associated */
-	enum prop_type type;       /* type of property */
-	const char *text;          /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */
-	struct expr_value visible;
-	struct expr *expr;         /* the optional conditional part of the property */
-	struct menu *menu;         /* the menu the property are associated with
-	                            * valid for: P_SELECT, P_RANGE, P_CHOICE,
-	                            * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */
-	struct file *file;         /* what file was this property defined */
-	int lineno;                /* what lineno was this property defined */
-};
-
-#define for_all_properties(sym, st, tok) \
-	for (st = sym->prop; st; st = st->next) \
-		if (st->type == (tok))
-#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
-#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
-#define for_all_prompts(sym, st) \
-	for (st = sym->prop; st; st = st->next) \
-		if (st->text)
-
-struct menu {
-	struct menu *next;
-	struct menu *parent;
-	struct menu *list;
-	struct symbol *sym;
-	struct property *prompt;
-	struct expr *visibility;
-	struct expr *dep;
-	unsigned int flags;
-	char *help;
-	struct file *file;
-	int lineno;
-	void *data;
-};
-
-#define MENU_CHANGED		0x0001
-#define MENU_ROOT		0x0002
-
-struct jump_key {
-	struct list_head entries;
-	size_t offset;
-	struct menu *target;
-	int index;
-};
-
-#define JUMP_NB			9
-
-extern struct file *file_list;
-extern struct file *current_file;
-struct file *lookup_file(const char *name);
-
-extern struct symbol symbol_yes, symbol_no, symbol_mod;
-extern struct symbol *modules_sym;
-extern struct symbol *sym_defconfig_list;
-extern int cdebug;
-struct expr *expr_alloc_symbol(struct symbol *sym);
-struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
-struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
-struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
-struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
-struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
-struct expr *expr_copy(const struct expr *org);
-void expr_free(struct expr *e);
-int expr_eq(struct expr *e1, struct expr *e2);
-void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
-tristate expr_calc_value(struct expr *e);
-struct expr *expr_eliminate_yn(struct expr *e);
-struct expr *expr_trans_bool(struct expr *e);
-struct expr *expr_eliminate_dups(struct expr *e);
-struct expr *expr_transform(struct expr *e);
-int expr_contains_symbol(struct expr *dep, struct symbol *sym);
-bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
-struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
-struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
-void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
-struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
-struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);
-
-void expr_fprint(struct expr *e, FILE *out);
-struct gstr; /* forward */
-void expr_gstr_print(struct expr *e, struct gstr *gs);
-
-static inline int expr_is_yes(struct expr *e)
-{
-	return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
-}
-
-static inline int expr_is_no(struct expr *e)
-{
-	return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* EXPR_H */
diff --git a/scripts/kconfig_parser/kconfig/list.h b/scripts/kconfig_parser/kconfig/list.h
deleted file mode 100644
index 685d80e..0000000
--- a/scripts/kconfig_parser/kconfig/list.h
+++ /dev/null
@@ -1,131 +0,0 @@
-#ifndef LIST_H
-#define LIST_H
-
-/*
- * Copied from include/linux/...
- */
-
-#undef offsetof
-#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
-
-/**
- * container_of - cast a member of a structure out to the containing structure
- * @ptr:        the pointer to the member.
- * @type:       the type of the container struct this is embedded in.
- * @member:     the name of the member within the struct.
- *
- */
-#define container_of(ptr, type, member) ({                      \
-	const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
-	(type *)( (char *)__mptr - offsetof(type,member) );})
-
-
-struct list_head {
-	struct list_head *next, *prev;
-};
-
-
-#define LIST_HEAD_INIT(name) { &(name), &(name) }
-
-#define LIST_HEAD(name) \
-	struct list_head name = LIST_HEAD_INIT(name)
-
-/**
- * list_entry - get the struct for this entry
- * @ptr:	the &struct list_head pointer.
- * @type:	the type of the struct this is embedded in.
- * @member:	the name of the list_struct within the struct.
- */
-#define list_entry(ptr, type, member) \
-	container_of(ptr, type, member)
-
-/**
- * list_for_each_entry	-	iterate over list of given type
- * @pos:	the type * to use as a loop cursor.
- * @head:	the head for your list.
- * @member:	the name of the list_struct within the struct.
- */
-#define list_for_each_entry(pos, head, member)				\
-	for (pos = list_entry((head)->next, typeof(*pos), member);	\
-	     &pos->member != (head); 	\
-	     pos = list_entry(pos->member.next, typeof(*pos), member))
-
-/**
- * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
- * @pos:	the type * to use as a loop cursor.
- * @n:		another type * to use as temporary storage
- * @head:	the head for your list.
- * @member:	the name of the list_struct within the struct.
- */
-#define list_for_each_entry_safe(pos, n, head, member)			\
-	for (pos = list_entry((head)->next, typeof(*pos), member),	\
-		n = list_entry(pos->member.next, typeof(*pos), member);	\
-	     &pos->member != (head);					\
-	     pos = n, n = list_entry(n->member.next, typeof(*n), member))
-
-/**
- * list_empty - tests whether a list is empty
- * @head: the list to test.
- */
-static inline int list_empty(const struct list_head *head)
-{
-	return head->next == head;
-}
-
-/*
- * Insert a new entry between two known consecutive entries.
- *
- * This is only for internal list manipulation where we know
- * the prev/next entries already!
- */
-static inline void __list_add(struct list_head *_new,
-			      struct list_head *prev,
-			      struct list_head *next)
-{
-	next->prev = _new;
-	_new->next = next;
-	_new->prev = prev;
-	prev->next = _new;
-}
-
-/**
- * list_add_tail - add a new entry
- * @new: new entry to be added
- * @head: list head to add it before
- *
- * Insert a new entry before the specified head.
- * This is useful for implementing queues.
- */
-static inline void list_add_tail(struct list_head *_new, struct list_head *head)
-{
-	__list_add(_new, head->prev, head);
-}
-
-/*
- * Delete a list entry by making the prev/next entries
- * point to each other.
- *
- * This is only for internal list manipulation where we know
- * the prev/next entries already!
- */
-static inline void __list_del(struct list_head *prev, struct list_head *next)
-{
-	next->prev = prev;
-	prev->next = next;
-}
-
-#define LIST_POISON1  ((void *) 0x00100100)
-#define LIST_POISON2  ((void *) 0x00200200)
-/**
- * list_del - deletes entry from list.
- * @entry: the element to delete from the list.
- * Note: list_empty() on entry does not return true after this, the entry is
- * in an undefined state.
- */
-static inline void list_del(struct list_head *entry)
-{
-	__list_del(entry->prev, entry->next);
-	entry->next = (struct list_head*)LIST_POISON1;
-	entry->prev = (struct list_head*)LIST_POISON2;
-}
-#endif
diff --git a/scripts/kconfig_parser/kconfig/lkc.h b/scripts/kconfig_parser/kconfig/lkc.h
deleted file mode 100644
index d5daa7a..0000000
--- a/scripts/kconfig_parser/kconfig/lkc.h
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#ifndef LKC_H
-#define LKC_H
-
-#include "expr.h"
-
-#ifndef KBUILD_NO_NLS
-# include <libintl.h>
-#else
-static inline const char *gettext(const char *txt) { return txt; }
-static inline void textdomain(const char *domainname) {}
-static inline void bindtextdomain(const char *name, const char *dir) {}
-static inline char *bind_textdomain_codeset(const char *dn, char *c) { return c; }
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define P(name,type,arg)	extern type name arg
-#include "lkc_proto.h"
-#undef P
-
-#define SRCTREE "srctree"
-
-#ifndef PACKAGE
-#define PACKAGE "linux"
-#endif
-
-#define LOCALEDIR "/usr/share/locale"
-
-#define _(text) gettext(text)
-#define N_(text) (text)
-
-#ifndef CONFIG_
-#define CONFIG_ "CONFIG_"
-#endif
-static inline const char *CONFIG_prefix(void)
-{
-	return getenv( "CONFIG_" ) ?: CONFIG_;
-}
-#undef CONFIG_
-#define CONFIG_ CONFIG_prefix()
-
-#define TF_COMMAND	0x0001
-#define TF_PARAM	0x0002
-#define TF_OPTION	0x0004
-
-enum conf_def_mode {
-	def_default,
-	def_yes,
-	def_mod,
-	def_no,
-	def_random
-};
-
-#define T_OPT_MODULES		1
-#define T_OPT_DEFCONFIG_LIST	2
-#define T_OPT_ENV		3
-#define T_OPT_ALLNOCONFIG_Y	4
-
-struct kconf_id {
-	int name;
-	int token;
-	unsigned int flags;
-	enum symbol_type stype;
-};
-
-extern int zconfdebug;
-
-int zconfparse(void);
-void zconfdump(FILE *out);
-void zconf_starthelp(void);
-FILE *zconf_fopen(const char *name);
-void zconf_initscan(const char *name);
-void zconf_nextfile(const char *name);
-int zconf_lineno(void);
-const char *zconf_curname(void);
-
-/* confdata.c */
-const char *conf_get_configname(void);
-const char *conf_get_autoconfig_name(void);
-char *conf_get_default_confname(void);
-void sym_set_change_count(int count);
-void sym_add_change_count(int count);
-bool conf_set_all_new_symbols(enum conf_def_mode mode);
-void set_all_choice_values(struct symbol *csym);
-
-struct conf_printer {
-	void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
-	void (*print_comment)(FILE *, const char *, void *);
-};
-
-/* confdata.c and expr.c */
-static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
-{
-	assert(len != 0);
-
-	if (fwrite(str, len, count, out) != count)
-		fprintf(stderr, "Error in writing or end of file.\n");
-}
-
-/* menu.c */
-void _menu_init(void);
-void menu_warn(struct menu *menu, const char *fmt, ...);
-struct menu *menu_add_menu(void);
-void menu_end_menu(void);
-void menu_add_entry(struct symbol *sym);
-void menu_end_entry(void);
-void menu_add_dep(struct expr *dep);
-void menu_add_visibility(struct expr *dep);
-struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep);
-struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep);
-void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep);
-void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
-void menu_add_option(int token, char *arg);
-void menu_finalize(struct menu *parent);
-void menu_set_type(int type);
-
-/* util.c */
-struct file *file_lookup(const char *name);
-int file_write_dep(const char *name);
-void *xmalloc(size_t size);
-void *xcalloc(size_t nmemb, size_t size);
-
-struct gstr {
-	size_t len;
-	char  *s;
-	/*
-	* when max_width is not zero long lines in string s (if any) get
-	* wrapped not to exceed the max_width value
-	*/
-	int max_width;
-};
-struct gstr str_new(void);
-struct gstr str_assign(const char *s);
-void str_free(struct gstr *gs);
-void str_append(struct gstr *gs, const char *s);
-void str_printf(struct gstr *gs, const char *fmt, ...);
-const char *str_get(struct gstr *gs);
-
-/* symbol.c */
-extern struct expr *sym_env_list;
-
-void sym_init(void);
-void sym_clear_all_valid(void);
-void sym_set_all_changed(void);
-void sym_set_changed(struct symbol *sym);
-struct symbol *sym_choice_default(struct symbol *sym);
-const char *sym_get_string_default(struct symbol *sym);
-struct symbol *sym_check_deps(struct symbol *sym);
-struct property *prop_alloc(enum prop_type type, struct symbol *sym);
-struct symbol *prop_get_symbol(struct property *prop);
-struct property *sym_get_env_prop(struct symbol *sym);
-
-static inline tristate sym_get_tristate_value(struct symbol *sym)
-{
-	return sym->curr.tri;
-}
-
-
-static inline struct symbol *sym_get_choice_value(struct symbol *sym)
-{
-	return (struct symbol *)sym->curr.val;
-}
-
-static inline bool sym_set_choice_value(struct symbol *ch, struct symbol *chval)
-{
-	return sym_set_tristate_value(chval, yes);
-}
-
-static inline bool sym_is_choice(struct symbol *sym)
-{
-	return sym->flags & SYMBOL_CHOICE ? true : false;
-}
-
-static inline bool sym_is_choice_value(struct symbol *sym)
-{
-	return sym->flags & SYMBOL_CHOICEVAL ? true : false;
-}
-
-static inline bool sym_is_optional(struct symbol *sym)
-{
-	return sym->flags & SYMBOL_OPTIONAL ? true : false;
-}
-
-static inline bool sym_has_value(struct symbol *sym)
-{
-	return sym->flags & SYMBOL_DEF_USER ? true : false;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* LKC_H */
diff --git a/scripts/kconfig_parser/kconfig/lkc_proto.h b/scripts/kconfig_parser/kconfig/lkc_proto.h
deleted file mode 100644
index ecdb965..0000000
--- a/scripts/kconfig_parser/kconfig/lkc_proto.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#include <stdarg.h>
-
-/* confdata.c */
-P(conf_parse,void,(const char *name));
-P(conf_read,int,(const char *name));
-P(conf_read_simple,int,(const char *name, int));
-P(conf_write_defconfig,int,(const char *name));
-P(conf_write,int,(const char *name));
-P(conf_write_autoconf,int,(void));
-P(conf_get_changed,bool,(void));
-P(conf_set_changed_callback, void,(void (*fn)(void)));
-P(conf_set_message_callback, void,(void (*fn)(const char *fmt, va_list ap)));
-
-/* menu.c */
-P(rootmenu,struct menu,);
-
-P(menu_is_empty, bool, (struct menu *menu));
-P(menu_is_visible, bool, (struct menu *menu));
-P(menu_has_prompt, bool, (struct menu *menu));
-P(menu_get_prompt,const char *,(struct menu *menu));
-P(menu_get_root_menu,struct menu *,(struct menu *menu));
-P(menu_get_parent_menu,struct menu *,(struct menu *menu));
-P(menu_has_help,bool,(struct menu *menu));
-P(menu_get_help,const char *,(struct menu *menu));
-P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct list_head
-			 *head));
-P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head
-				   *head));
-P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
-
-/* symbol.c */
-P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
-
-P(sym_lookup,struct symbol *,(const char *name, int flags));
-P(sym_find,struct symbol *,(const char *name));
-P(sym_expand_string_value,const char *,(const char *in));
-P(sym_escape_string_value, const char *,(const char *in));
-P(sym_re_search,struct symbol **,(const char *pattern));
-P(sym_type_name,const char *,(enum symbol_type type));
-P(sym_calc_value,void,(struct symbol *sym));
-P(sym_get_type,enum symbol_type,(struct symbol *sym));
-P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri));
-P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri));
-P(sym_toggle_tristate_value,tristate,(struct symbol *sym));
-P(sym_string_valid,bool,(struct symbol *sym, const char *newval));
-P(sym_string_within_range,bool,(struct symbol *sym, const char *str));
-P(sym_set_string_value,bool,(struct symbol *sym, const char *newval));
-P(sym_is_changable,bool,(struct symbol *sym));
-P(sym_get_choice_prop,struct property *,(struct symbol *sym));
-P(sym_get_default_prop,struct property *,(struct symbol *sym));
-P(sym_get_string_value,const char *,(struct symbol *sym));
-
-P(prop_get_type_name,const char *,(enum prop_type type));
-
-/* expr.c */
-P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2));
-P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));
diff --git a/scripts/kconfig_parser/kconfig/menu.c b/scripts/kconfig_parser/kconfig/menu.c
deleted file mode 100644
index a26cc5d..0000000
--- a/scripts/kconfig_parser/kconfig/menu.c
+++ /dev/null
@@ -1,697 +0,0 @@
-/*
- * 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 = &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));
-}
-
-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);
-}
diff --git a/scripts/kconfig_parser/kconfig/symbol.c b/scripts/kconfig_parser/kconfig/symbol.c
deleted file mode 100644
index 7caabdb..0000000
--- a/scripts/kconfig_parser/kconfig/symbol.c
+++ /dev/null
@@ -1,1373 +0,0 @@
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#include <ctype.h>
-#include <stdlib.h>
-#include <string.h>
-#include <regex.h>
-#include <sys/utsname.h>
-
-#include "lkc.h"
-
-struct symbol symbol_yes = {
-	.name = "y",
-	.curr = { "y", yes },
-	.flags = SYMBOL_CONST|SYMBOL_VALID,
-}, symbol_mod = {
-	.name = "m",
-	.curr = { "m", mod },
-	.flags = SYMBOL_CONST|SYMBOL_VALID,
-}, symbol_no = {
-	.name = "n",
-	.curr = { "n", no },
-	.flags = SYMBOL_CONST|SYMBOL_VALID,
-}, symbol_empty = {
-	.name = "",
-	.curr = { "", no },
-	.flags = SYMBOL_VALID,
-};
-
-struct symbol *sym_defconfig_list;
-struct symbol *modules_sym;
-tristate modules_val;
-
-struct expr *sym_env_list;
-
-static void sym_add_default(struct symbol *sym, const char *def)
-{
-	struct property *prop = prop_alloc(P_DEFAULT, sym);
-
-	prop->expr = expr_alloc_symbol(sym_lookup(def, SYMBOL_CONST));
-}
-
-void sym_init(void)
-{
-	struct symbol *sym;
-	struct utsname uts;
-	static bool inited = false;
-
-	if (inited)
-		return;
-	inited = true;
-
-	uname(&uts);
-
-	sym = sym_lookup("UNAME_RELEASE", 0);
-	sym->type = S_STRING;
-	sym->flags |= SYMBOL_AUTO;
-	sym_add_default(sym, uts.release);
-}
-
-enum symbol_type sym_get_type(struct symbol *sym)
-{
-	enum symbol_type type = sym->type;
-
-	if (type == S_TRISTATE) {
-		if (sym_is_choice_value(sym) && sym->visible == yes)
-			type = S_BOOLEAN;
-		else if (modules_val == no)
-			type = S_BOOLEAN;
-	}
-	return type;
-}
-
-const char *sym_type_name(enum symbol_type type)
-{
-	switch (type) {
-	case S_BOOLEAN:
-		return "boolean";
-	case S_TRISTATE:
-		return "tristate";
-	case S_INT:
-		return "integer";
-	case S_HEX:
-		return "hex";
-	case S_STRING:
-		return "string";
-	case S_UNKNOWN:
-		return "unknown";
-	case S_OTHER:
-		break;
-	}
-	return "???";
-}
-
-struct property *sym_get_choice_prop(struct symbol *sym)
-{
-	struct property *prop;
-
-	for_all_choices(sym, prop)
-		return prop;
-	return NULL;
-}
-
-struct property *sym_get_env_prop(struct symbol *sym)
-{
-	struct property *prop;
-
-	for_all_properties(sym, prop, P_ENV)
-		return prop;
-	return NULL;
-}
-
-struct property *sym_get_default_prop(struct symbol *sym)
-{
-	struct property *prop;
-
-	for_all_defaults(sym, prop) {
-		prop->visible.tri = expr_calc_value(prop->visible.expr);
-		if (prop->visible.tri != no)
-			return prop;
-	}
-	return NULL;
-}
-
-static struct property *sym_get_range_prop(struct symbol *sym)
-{
-	struct property *prop;
-
-	for_all_properties(sym, prop, P_RANGE) {
-		prop->visible.tri = expr_calc_value(prop->visible.expr);
-		if (prop->visible.tri != no)
-			return prop;
-	}
-	return NULL;
-}
-
-static long long sym_get_range_val(struct symbol *sym, int base)
-{
-	sym_calc_value(sym);
-	switch (sym->type) {
-	case S_INT:
-		base = 10;
-		break;
-	case S_HEX:
-		base = 16;
-		break;
-	default:
-		break;
-	}
-	return strtoll(sym->curr.val, NULL, base);
-}
-
-static void sym_validate_range(struct symbol *sym)
-{
-	struct property *prop;
-	int base;
-	long long val, val2;
-	char str[64];
-
-	switch (sym->type) {
-	case S_INT:
-		base = 10;
-		break;
-	case S_HEX:
-		base = 16;
-		break;
-	default:
-		return;
-	}
-	prop = sym_get_range_prop(sym);
-	if (!prop)
-		return;
-	val = strtoll(sym->curr.val, NULL, base);
-	val2 = sym_get_range_val(prop->expr->left.sym, base);
-	if (val >= val2) {
-		val2 = sym_get_range_val(prop->expr->right.sym, base);
-		if (val <= val2)
-			return;
-	}
-	if (sym->type == S_INT)
-		sprintf(str, "%lld", val2);
-	else
-		sprintf(str, "0x%llx", val2);
-	sym->curr.val = strdup(str);
-}
-
-static void sym_calc_visibility(struct symbol *sym)
-{
-	struct property *prop;
-	tristate tri;
-
-	/* any prompt visible? */
-	tri = no;
-	for_all_prompts(sym, prop) {
-		prop->visible.tri = expr_calc_value(prop->visible.expr);
-		tri = EXPR_OR(tri, prop->visible.tri);
-	}
-	if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
-		tri = yes;
-	if (sym->visible != tri) {
-		sym->visible = tri;
-		sym_set_changed(sym);
-	}
-	if (sym_is_choice_value(sym))
-		return;
-	/* defaulting to "yes" if no explicit "depends on" are given */
-	tri = yes;
-	if (sym->dir_dep.expr)
-		tri = expr_calc_value(sym->dir_dep.expr);
-	if (tri == mod)
-		tri = yes;
-	if (sym->dir_dep.tri != tri) {
-		sym->dir_dep.tri = tri;
-		sym_set_changed(sym);
-	}
-	tri = no;
-	if (sym->rev_dep.expr)
-		tri = expr_calc_value(sym->rev_dep.expr);
-	if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
-		tri = yes;
-	if (sym->rev_dep.tri != tri) {
-		sym->rev_dep.tri = tri;
-		sym_set_changed(sym);
-	}
-}
-
-/*
- * Find the default symbol for a choice.
- * First try the default values for the choice symbol
- * Next locate the first visible choice value
- * Return NULL if none was found
- */
-struct symbol *sym_choice_default(struct symbol *sym)
-{
-	struct symbol *def_sym;
-	struct property *prop;
-	struct expr *e;
-
-	/* any of the defaults visible? */
-	for_all_defaults(sym, prop) {
-		prop->visible.tri = expr_calc_value(prop->visible.expr);
-		if (prop->visible.tri == no)
-			continue;
-		def_sym = prop_get_symbol(prop);
-		if (def_sym->visible != no)
-			return def_sym;
-	}
-
-	/* just get the first visible value */
-	prop = sym_get_choice_prop(sym);
-	expr_list_for_each_sym(prop->expr, e, def_sym)
-		if (def_sym->visible != no)
-			return def_sym;
-
-	/* failed to locate any defaults */
-	return NULL;
-}
-
-static struct symbol *sym_calc_choice(struct symbol *sym)
-{
-	struct symbol *def_sym;
-	struct property *prop;
-	struct expr *e;
-	int flags;
-
-	/* first calculate all choice values' visibilities */
-	flags = sym->flags;
-	prop = sym_get_choice_prop(sym);
-	expr_list_for_each_sym(prop->expr, e, def_sym) {
-		sym_calc_visibility(def_sym);
-		if (def_sym->visible != no)
-			flags &= def_sym->flags;
-	}
-
-	sym->flags &= flags | ~SYMBOL_DEF_USER;
-
-	/* is the user choice visible? */
-	def_sym = sym->def[S_DEF_USER].val;
-	if (def_sym && def_sym->visible != no)
-		return def_sym;
-
-	def_sym = sym_choice_default(sym);
-
-	if (def_sym == NULL)
-		/* no choice? reset tristate value */
-		sym->curr.tri = no;
-
-	return def_sym;
-}
-
-void sym_calc_value(struct symbol *sym)
-{
-	struct symbol_value newval, oldval;
-	struct property *prop;
-	struct expr *e;
-
-	if (!sym)
-		return;
-
-	if (sym->flags & SYMBOL_VALID)
-		return;
-
-	if (sym_is_choice_value(sym) &&
-	    sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES) {
-		sym->flags &= ~SYMBOL_NEED_SET_CHOICE_VALUES;
-		prop = sym_get_choice_prop(sym);
-		sym_calc_value(prop_get_symbol(prop));
-	}
-
-	sym->flags |= SYMBOL_VALID;
-
-	oldval = sym->curr;
-
-	switch (sym->type) {
-	case S_INT:
-	case S_HEX:
-	case S_STRING:
-		newval = symbol_empty.curr;
-		break;
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		newval = symbol_no.curr;
-		break;
-	default:
-		sym->curr.val = sym->name;
-		sym->curr.tri = no;
-		return;
-	}
-	if (!sym_is_choice_value(sym))
-		sym->flags &= ~SYMBOL_WRITE;
-
-	sym_calc_visibility(sym);
-
-	/* set default if recursively called */
-	sym->curr = newval;
-
-	switch (sym_get_type(sym)) {
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		if (sym_is_choice_value(sym) && sym->visible == yes) {
-			prop = sym_get_choice_prop(sym);
-			newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
-		} else {
-			if (sym->visible != no) {
-				/* if the symbol is visible use the user value
-				 * if available, otherwise try the default value
-				 */
-				sym->flags |= SYMBOL_WRITE;
-				if (sym_has_value(sym)) {
-					newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,
-							      sym->visible);
-					goto calc_newval;
-				}
-			}
-			if (sym->rev_dep.tri != no)
-				sym->flags |= SYMBOL_WRITE;
-			if (!sym_is_choice(sym)) {
-				prop = sym_get_default_prop(sym);
-				if (prop) {
-					sym->flags |= SYMBOL_WRITE;
-					newval.tri = EXPR_AND(expr_calc_value(prop->expr),
-							      prop->visible.tri);
-				}
-			}
-		calc_newval:
-			if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {
-				struct expr *e;
-				e = expr_simplify_unmet_dep(sym->rev_dep.expr,
-				    sym->dir_dep.expr);
-				fprintf(stderr, "warning: (");
-				expr_fprint(e, stderr);
-				fprintf(stderr, ") selects %s which has unmet direct dependencies (",
-					sym->name);
-				expr_fprint(sym->dir_dep.expr, stderr);
-				fprintf(stderr, ")\n");
-				expr_free(e);
-			}
-			newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
-		}
-		if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
-			newval.tri = yes;
-		break;
-	case S_STRING:
-	case S_HEX:
-	case S_INT:
-		if (sym->visible != no) {
-			sym->flags |= SYMBOL_WRITE;
-			if (sym_has_value(sym)) {
-				newval.val = sym->def[S_DEF_USER].val;
-				break;
-			}
-		}
-		prop = sym_get_default_prop(sym);
-		if (prop) {
-			struct symbol *ds = prop_get_symbol(prop);
-			if (ds) {
-				sym->flags |= SYMBOL_WRITE;
-				sym_calc_value(ds);
-				newval.val = ds->curr.val;
-			}
-		}
-		break;
-	default:
-		;
-	}
-
-	sym->curr = newval;
-	if (sym_is_choice(sym) && newval.tri == yes)
-		sym->curr.val = sym_calc_choice(sym);
-	sym_validate_range(sym);
-
-	if (memcmp(&oldval, &sym->curr, sizeof(oldval))) {
-		sym_set_changed(sym);
-		if (modules_sym == sym) {
-			sym_set_all_changed();
-			modules_val = modules_sym->curr.tri;
-		}
-	}
-
-	if (sym_is_choice(sym)) {
-		struct symbol *choice_sym;
-
-		prop = sym_get_choice_prop(sym);
-		expr_list_for_each_sym(prop->expr, e, choice_sym) {
-			if ((sym->flags & SYMBOL_WRITE) &&
-			    choice_sym->visible != no)
-				choice_sym->flags |= SYMBOL_WRITE;
-			if (sym->flags & SYMBOL_CHANGED)
-				sym_set_changed(choice_sym);
-		}
-	}
-
-	if (sym->flags & SYMBOL_AUTO)
-		sym->flags &= ~SYMBOL_WRITE;
-
-	if (sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES)
-		set_all_choice_values(sym);
-}
-
-void sym_clear_all_valid(void)
-{
-	struct symbol *sym;
-	int i;
-
-	for_all_symbols(i, sym)
-		sym->flags &= ~SYMBOL_VALID;
-	sym_add_change_count(1);
-	if (modules_sym)
-		sym_calc_value(modules_sym);
-}
-
-void sym_set_changed(struct symbol *sym)
-{
-	struct property *prop;
-
-	sym->flags |= SYMBOL_CHANGED;
-	for (prop = sym->prop; prop; prop = prop->next) {
-		if (prop->menu)
-			prop->menu->flags |= MENU_CHANGED;
-	}
-}
-
-void sym_set_all_changed(void)
-{
-	struct symbol *sym;
-	int i;
-
-	for_all_symbols(i, sym)
-		sym_set_changed(sym);
-}
-
-bool sym_tristate_within_range(struct symbol *sym, tristate val)
-{
-	int type = sym_get_type(sym);
-
-	if (sym->visible == no)
-		return false;
-
-	if (type != S_BOOLEAN && type != S_TRISTATE)
-		return false;
-
-	if (type == S_BOOLEAN && val == mod)
-		return false;
-	if (sym->visible <= sym->rev_dep.tri)
-		return false;
-	if (sym_is_choice_value(sym) && sym->visible == yes)
-		return val == yes;
-	return val >= sym->rev_dep.tri && val <= sym->visible;
-}
-
-bool sym_set_tristate_value(struct symbol *sym, tristate val)
-{
-	tristate oldval = sym_get_tristate_value(sym);
-
-	if (oldval != val && !sym_tristate_within_range(sym, val))
-		return false;
-
-	if (!(sym->flags & SYMBOL_DEF_USER)) {
-		sym->flags |= SYMBOL_DEF_USER;
-		sym_set_changed(sym);
-	}
-	/*
-	 * setting a choice value also resets the new flag of the choice
-	 * symbol and all other choice values.
-	 */
-	if (sym_is_choice_value(sym) && val == yes) {
-		struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
-		struct property *prop;
-		struct expr *e;
-
-		cs->def[S_DEF_USER].val = sym;
-		cs->flags |= SYMBOL_DEF_USER;
-		prop = sym_get_choice_prop(cs);
-		for (e = prop->expr; e; e = e->left.expr) {
-			if (e->right.sym->visible != no)
-				e->right.sym->flags |= SYMBOL_DEF_USER;
-		}
-	}
-
-	sym->def[S_DEF_USER].tri = val;
-	if (oldval != val)
-		sym_clear_all_valid();
-
-	return true;
-}
-
-tristate sym_toggle_tristate_value(struct symbol *sym)
-{
-	tristate oldval, newval;
-
-	oldval = newval = sym_get_tristate_value(sym);
-	do {
-		switch (newval) {
-		case no:
-			newval = mod;
-			break;
-		case mod:
-			newval = yes;
-			break;
-		case yes:
-			newval = no;
-			break;
-		}
-		if (sym_set_tristate_value(sym, newval))
-			break;
-	} while (oldval != newval);
-	return newval;
-}
-
-bool sym_string_valid(struct symbol *sym, const char *str)
-{
-	signed char ch;
-
-	switch (sym->type) {
-	case S_STRING:
-		return true;
-	case S_INT:
-		ch = *str++;
-		if (ch == '-')
-			ch = *str++;
-		if (!isdigit(ch))
-			return false;
-		if (ch == '0' && *str != 0)
-			return false;
-		while ((ch = *str++)) {
-			if (!isdigit(ch))
-				return false;
-		}
-		return true;
-	case S_HEX:
-		if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
-			str += 2;
-		ch = *str++;
-		do {
-			if (!isxdigit(ch))
-				return false;
-		} while ((ch = *str++));
-		return true;
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		switch (str[0]) {
-		case 'y': case 'Y':
-		case 'm': case 'M':
-		case 'n': case 'N':
-			return true;
-		}
-		return false;
-	default:
-		return false;
-	}
-}
-
-bool sym_string_within_range(struct symbol *sym, const char *str)
-{
-	struct property *prop;
-	long long val;
-
-	switch (sym->type) {
-	case S_STRING:
-		return sym_string_valid(sym, str);
-	case S_INT:
-		if (!sym_string_valid(sym, str))
-			return false;
-		prop = sym_get_range_prop(sym);
-		if (!prop)
-			return true;
-		val = strtoll(str, NULL, 10);
-		return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
-		       val <= sym_get_range_val(prop->expr->right.sym, 10);
-	case S_HEX:
-		if (!sym_string_valid(sym, str))
-			return false;
-		prop = sym_get_range_prop(sym);
-		if (!prop)
-			return true;
-		val = strtoll(str, NULL, 16);
-		return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
-		       val <= sym_get_range_val(prop->expr->right.sym, 16);
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		switch (str[0]) {
-		case 'y': case 'Y':
-			return sym_tristate_within_range(sym, yes);
-		case 'm': case 'M':
-			return sym_tristate_within_range(sym, mod);
-		case 'n': case 'N':
-			return sym_tristate_within_range(sym, no);
-		}
-		return false;
-	default:
-		return false;
-	}
-}
-
-bool sym_set_string_value(struct symbol *sym, const char *newval)
-{
-	const char *oldval;
-	char *val;
-	int size;
-
-	switch (sym->type) {
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		switch (newval[0]) {
-		case 'y': case 'Y':
-			return sym_set_tristate_value(sym, yes);
-		case 'm': case 'M':
-			return sym_set_tristate_value(sym, mod);
-		case 'n': case 'N':
-			return sym_set_tristate_value(sym, no);
-		}
-		return false;
-	default:
-		;
-	}
-
-	if (!sym_string_within_range(sym, newval))
-		return false;
-
-	if (!(sym->flags & SYMBOL_DEF_USER)) {
-		sym->flags |= SYMBOL_DEF_USER;
-		sym_set_changed(sym);
-	}
-
-	oldval = sym->def[S_DEF_USER].val;
-	size = strlen(newval) + 1;
-	if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
-		size += 2;
-		sym->def[S_DEF_USER].val = val = xmalloc(size);
-		*val++ = '0';
-		*val++ = 'x';
-	} else if (!oldval || strcmp(oldval, newval))
-		sym->def[S_DEF_USER].val = val = xmalloc(size);
-	else
-		return true;
-
-	strcpy(val, newval);
-	free((void *)oldval);
-	sym_clear_all_valid();
-
-	return true;
-}
-
-/*
- * Find the default value associated to a symbol.
- * For tristate symbol handle the modules=n case
- * in which case "m" becomes "y".
- * If the symbol does not have any default then fallback
- * to the fixed default values.
- */
-const char *sym_get_string_default(struct symbol *sym)
-{
-	struct property *prop;
-	struct symbol *ds;
-	const char *str;
-	tristate val;
-
-	sym_calc_visibility(sym);
-	sym_calc_value(modules_sym);
-	val = symbol_no.curr.tri;
-	str = symbol_empty.curr.val;
-
-	/* If symbol has a default value look it up */
-	prop = sym_get_default_prop(sym);
-	if (prop != NULL) {
-		switch (sym->type) {
-		case S_BOOLEAN:
-		case S_TRISTATE:
-			/* The visibility may limit the value from yes => mod */
-			val = EXPR_AND(expr_calc_value(prop->expr), prop->visible.tri);
-			break;
-		default:
-			/*
-			 * The following fails to handle the situation
-			 * where a default value is further limited by
-			 * the valid range.
-			 */
-			ds = prop_get_symbol(prop);
-			if (ds != NULL) {
-				sym_calc_value(ds);
-				str = (const char *)ds->curr.val;
-			}
-		}
-	}
-
-	/* Handle select statements */
-	val = EXPR_OR(val, sym->rev_dep.tri);
-
-	/* transpose mod to yes if modules are not enabled */
-	if (val == mod)
-		if (!sym_is_choice_value(sym) && modules_sym->curr.tri == no)
-			val = yes;
-
-	/* transpose mod to yes if type is bool */
-	if (sym->type == S_BOOLEAN && val == mod)
-		val = yes;
-
-	switch (sym->type) {
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		switch (val) {
-		case no: return "n";
-		case mod: return "m";
-		case yes: return "y";
-		}
-	case S_INT:
-	case S_HEX:
-		return str;
-	case S_STRING:
-		return str;
-	case S_OTHER:
-	case S_UNKNOWN:
-		break;
-	}
-	return "";
-}
-
-const char *sym_get_string_value(struct symbol *sym)
-{
-	tristate val;
-
-	switch (sym->type) {
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		val = sym_get_tristate_value(sym);
-		switch (val) {
-		case no:
-			return "n";
-		case mod:
-			sym_calc_value(modules_sym);
-			return (modules_sym->curr.tri == no) ? "n" : "m";
-		case yes:
-			return "y";
-		}
-		break;
-	default:
-		;
-	}
-	return (const char *)sym->curr.val;
-}
-
-bool sym_is_changable(struct symbol *sym)
-{
-	return sym->visible > sym->rev_dep.tri;
-}
-
-static unsigned strhash(const char *s)
-{
-	/* fnv32 hash */
-	unsigned hash = 2166136261U;
-	for (; *s; s++)
-		hash = (hash ^ *s) * 0x01000193;
-	return hash;
-}
-
-struct symbol *sym_lookup(const char *name, int flags)
-{
-	struct symbol *symbol;
-	char *new_name;
-	int hash;
-
-	if (name) {
-		if (name[0] && !name[1]) {
-			switch (name[0]) {
-			case 'y': return &symbol_yes;
-			case 'm': return &symbol_mod;
-			case 'n': return &symbol_no;
-			}
-		}
-		hash = strhash(name) % SYMBOL_HASHSIZE;
-
-		for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
-			if (symbol->name &&
-			    !strcmp(symbol->name, name) &&
-			    (flags ? symbol->flags & flags
-				   : !(symbol->flags & (SYMBOL_CONST|SYMBOL_CHOICE))))
-				return symbol;
-		}
-		new_name = strdup(name);
-	} else {
-		new_name = NULL;
-		hash = 0;
-	}
-
-	symbol = xmalloc(sizeof(*symbol));
-	memset(symbol, 0, sizeof(*symbol));
-	symbol->name = new_name;
-	symbol->type = S_UNKNOWN;
-	symbol->flags |= flags;
-
-	symbol->next = symbol_hash[hash];
-	symbol_hash[hash] = symbol;
-
-	return symbol;
-}
-
-struct symbol *sym_find(const char *name)
-{
-	struct symbol *symbol = NULL;
-	int hash = 0;
-
-	if (!name)
-		return NULL;
-
-	if (name[0] && !name[1]) {
-		switch (name[0]) {
-		case 'y': return &symbol_yes;
-		case 'm': return &symbol_mod;
-		case 'n': return &symbol_no;
-		}
-	}
-	hash = strhash(name) % SYMBOL_HASHSIZE;
-
-	for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
-		if (symbol->name &&
-		    !strcmp(symbol->name, name) &&
-		    !(symbol->flags & SYMBOL_CONST))
-				break;
-	}
-
-	return symbol;
-}
-
-/*
- * Expand symbol's names embedded in the string given in argument. Symbols'
- * name to be expanded shall be prefixed by a '$'. Unknown symbol expands to
- * the empty string.
- */
-const char *sym_expand_string_value(const char *in)
-{
-	const char *src;
-	char *res;
-	size_t reslen;
-
-	reslen = strlen(in) + 1;
-	res = xmalloc(reslen);
-	res[0] = '\0';
-
-	while ((src = strchr(in, '$'))) {
-		char *p, name[SYMBOL_MAXLENGTH];
-		const char *symval = "";
-		struct symbol *sym;
-		size_t newlen;
-
-		strncat(res, in, src - in);
-		src++;
-
-		p = name;
-		while (isalnum(*src) || *src == '_')
-			*p++ = *src++;
-		*p = '\0';
-
-		sym = sym_find(name);
-		if (sym != NULL) {
-			sym_calc_value(sym);
-			symval = sym_get_string_value(sym);
-		}
-
-		newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
-		if (newlen > reslen) {
-			reslen = newlen;
-			res = realloc(res, reslen);
-		}
-
-		strcat(res, symval);
-		in = src;
-	}
-	strcat(res, in);
-
-	return res;
-}
-
-const char *sym_escape_string_value(const char *in)
-{
-	const char *p;
-	size_t reslen;
-	char *res;
-	size_t l;
-
-	reslen = strlen(in) + strlen("\"\"") + 1;
-
-	p = in;
-	for (;;) {
-		l = strcspn(p, "\"\\");
-		p += l;
-
-		if (p[0] == '\0')
-			break;
-
-		reslen++;
-		p++;
-	}
-
-	res = xmalloc(reslen);
-	res[0] = '\0';
-
-	strcat(res, "\"");
-
-	p = in;
-	for (;;) {
-		l = strcspn(p, "\"\\");
-		strncat(res, p, l);
-		p += l;
-
-		if (p[0] == '\0')
-			break;
-
-		strcat(res, "\\");
-		strncat(res, p++, 1);
-	}
-
-	strcat(res, "\"");
-	return res;
-}
-
-struct sym_match {
-	struct symbol	*sym;
-	off_t		so, eo;
-};
-
-/* Compare matched symbols as thus:
- * - first, symbols that match exactly
- * - then, alphabetical sort
- */
-static int sym_rel_comp(const void *sym1, const void *sym2)
-{
-	const struct sym_match *s1 = sym1;
-	const struct sym_match *s2 = sym2;
-	int exact1, exact2;
-
-	/* Exact match:
-	 * - if matched length on symbol s1 is the length of that symbol,
-	 *   then this symbol should come first;
-	 * - if matched length on symbol s2 is the length of that symbol,
-	 *   then this symbol should come first.
-	 * Note: since the search can be a regexp, both symbols may match
-	 * exactly; if this is the case, we can't decide which comes first,
-	 * and we fallback to sorting alphabetically.
-	 */
-	exact1 = (s1->eo - s1->so) == strlen(s1->sym->name);
-	exact2 = (s2->eo - s2->so) == strlen(s2->sym->name);
-	if (exact1 && !exact2)
-		return -1;
-	if (!exact1 && exact2)
-		return 1;
-
-	/* As a fallback, sort symbols alphabetically */
-	return strcmp(s1->sym->name, s2->sym->name);
-}
-
-struct symbol **sym_re_search(const char *pattern)
-{
-	struct symbol *sym, **sym_arr = NULL;
-	struct sym_match *sym_match_arr = NULL;
-	int i, cnt, size;
-	regex_t re;
-	regmatch_t match[1];
-
-	cnt = size = 0;
-	/* Skip if empty */
-	if (strlen(pattern) == 0)
-		return NULL;
-	if (regcomp(&re, pattern, REG_EXTENDED|REG_ICASE))
-		return NULL;
-
-	for_all_symbols(i, sym) {
-		if (sym->flags & SYMBOL_CONST || !sym->name)
-			continue;
-		if (regexec(&re, sym->name, 1, match, 0))
-			continue;
-		if (cnt >= size) {
-			void *tmp;
-			size += 16;
-			tmp = realloc(sym_match_arr, size * sizeof(struct sym_match));
-			if (!tmp)
-				goto sym_re_search_free;
-			sym_match_arr = tmp;
-		}
-		sym_calc_value(sym);
-		/* As regexec returned 0, we know we have a match, so
-		 * we can use match[0].rm_[se]o without further checks
-		 */
-		sym_match_arr[cnt].so = match[0].rm_so;
-		sym_match_arr[cnt].eo = match[0].rm_eo;
-		sym_match_arr[cnt++].sym = sym;
-	}
-	if (sym_match_arr) {
-		qsort(sym_match_arr, cnt, sizeof(struct sym_match), sym_rel_comp);
-		sym_arr = malloc((cnt+1) * sizeof(struct symbol));
-		if (!sym_arr)
-			goto sym_re_search_free;
-		for (i = 0; i < cnt; i++)
-			sym_arr[i] = sym_match_arr[i].sym;
-		sym_arr[cnt] = NULL;
-	}
-sym_re_search_free:
-	/* sym_match_arr can be NULL if no match, but free(NULL) is OK */
-	free(sym_match_arr);
-	regfree(&re);
-
-	return sym_arr;
-}
-
-/*
- * When we check for recursive dependencies we use a stack to save
- * current state so we can print out relevant info to user.
- * The entries are located on the call stack so no need to free memory.
- * Note insert() remove() must always match to properly clear the stack.
- */
-static struct dep_stack {
-	struct dep_stack *prev, *next;
-	struct symbol *sym;
-	struct property *prop;
-	struct expr *expr;
-} *check_top;
-
-static void dep_stack_insert(struct dep_stack *stack, struct symbol *sym)
-{
-	memset(stack, 0, sizeof(*stack));
-	if (check_top)
-		check_top->next = stack;
-	stack->prev = check_top;
-	stack->sym = sym;
-	check_top = stack;
-}
-
-static void dep_stack_remove(void)
-{
-	check_top = check_top->prev;
-	if (check_top)
-		check_top->next = NULL;
-}
-
-/*
- * Called when we have detected a recursive dependency.
- * check_top point to the top of the stact so we use
- * the ->prev pointer to locate the bottom of the stack.
- */
-static void sym_check_print_recursive(struct symbol *last_sym)
-{
-	struct dep_stack *stack;
-	struct symbol *sym, *next_sym;
-	struct menu *menu = NULL;
-	struct property *prop;
-	struct dep_stack cv_stack;
-
-	if (sym_is_choice_value(last_sym)) {
-		dep_stack_insert(&cv_stack, last_sym);
-		last_sym = prop_get_symbol(sym_get_choice_prop(last_sym));
-	}
-
-	for (stack = check_top; stack != NULL; stack = stack->prev)
-		if (stack->sym == last_sym)
-			break;
-	if (!stack) {
-		fprintf(stderr, "unexpected recursive dependency error\n");
-		return;
-	}
-
-	for (; stack; stack = stack->next) {
-		sym = stack->sym;
-		next_sym = stack->next ? stack->next->sym : last_sym;
-		prop = stack->prop;
-		if (prop == NULL)
-			prop = stack->sym->prop;
-
-		/* for choice values find the menu entry (used below) */
-		if (sym_is_choice(sym) || sym_is_choice_value(sym)) {
-			for (prop = sym->prop; prop; prop = prop->next) {
-				menu = prop->menu;
-				if (prop->menu)
-					break;
-			}
-		}
-		if (stack->sym == last_sym)
-			fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
-				prop->file->name, prop->lineno);
-		if (stack->expr) {
-			fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
-				prop->file->name, prop->lineno,
-				sym->name ? sym->name : "<choice>",
-				prop_get_type_name(prop->type),
-				next_sym->name ? next_sym->name : "<choice>");
-		} else if (stack->prop) {
-			fprintf(stderr, "%s:%d:\tsymbol %s depends on %s\n",
-				prop->file->name, prop->lineno,
-				sym->name ? sym->name : "<choice>",
-				next_sym->name ? next_sym->name : "<choice>");
-		} else if (sym_is_choice(sym)) {
-			fprintf(stderr, "%s:%d:\tchoice %s contains symbol %s\n",
-				menu->file->name, menu->lineno,
-				sym->name ? sym->name : "<choice>",
-				next_sym->name ? next_sym->name : "<choice>");
-		} else if (sym_is_choice_value(sym)) {
-			fprintf(stderr, "%s:%d:\tsymbol %s is part of choice %s\n",
-				menu->file->name, menu->lineno,
-				sym->name ? sym->name : "<choice>",
-				next_sym->name ? next_sym->name : "<choice>");
-		} else {
-			fprintf(stderr, "%s:%d:\tsymbol %s is selected by %s\n",
-				prop->file->name, prop->lineno,
-				sym->name ? sym->name : "<choice>",
-				next_sym->name ? next_sym->name : "<choice>");
-		}
-	}
-
-	if (check_top == &cv_stack)
-		dep_stack_remove();
-}
-
-static struct symbol *sym_check_expr_deps(struct expr *e)
-{
-	struct symbol *sym;
-
-	if (!e)
-		return NULL;
-	switch (e->type) {
-	case E_OR:
-	case E_AND:
-		sym = sym_check_expr_deps(e->left.expr);
-		if (sym)
-			return sym;
-		return sym_check_expr_deps(e->right.expr);
-	case E_NOT:
-		return sym_check_expr_deps(e->left.expr);
-	case E_EQUAL:
-	case E_UNEQUAL:
-		sym = sym_check_deps(e->left.sym);
-		if (sym)
-			return sym;
-		return sym_check_deps(e->right.sym);
-	case E_SYMBOL:
-		return sym_check_deps(e->left.sym);
-	default:
-		break;
-	}
-	printf("Oops! How to check %d?\n", e->type);
-	return NULL;
-}
-
-/* return NULL when dependencies are OK */
-static struct symbol *sym_check_sym_deps(struct symbol *sym)
-{
-	struct symbol *sym2;
-	struct property *prop;
-	struct dep_stack stack;
-
-	dep_stack_insert(&stack, sym);
-
-	sym2 = sym_check_expr_deps(sym->rev_dep.expr);
-	if (sym2)
-		goto out;
-
-	for (prop = sym->prop; prop; prop = prop->next) {
-		if (prop->type == P_CHOICE || prop->type == P_SELECT)
-			continue;
-		stack.prop = prop;
-		sym2 = sym_check_expr_deps(prop->visible.expr);
-		if (sym2)
-			break;
-		if (prop->type != P_DEFAULT || sym_is_choice(sym))
-			continue;
-		stack.expr = prop->expr;
-		sym2 = sym_check_expr_deps(prop->expr);
-		if (sym2)
-			break;
-		stack.expr = NULL;
-	}
-
-out:
-	dep_stack_remove();
-
-	return sym2;
-}
-
-static struct symbol *sym_check_choice_deps(struct symbol *choice)
-{
-	struct symbol *sym, *sym2;
-	struct property *prop;
-	struct expr *e;
-	struct dep_stack stack;
-
-	dep_stack_insert(&stack, choice);
-
-	prop = sym_get_choice_prop(choice);
-	expr_list_for_each_sym(prop->expr, e, sym)
-		sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
-
-	choice->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
-	sym2 = sym_check_sym_deps(choice);
-	choice->flags &= ~SYMBOL_CHECK;
-	if (sym2)
-		goto out;
-
-	expr_list_for_each_sym(prop->expr, e, sym) {
-		sym2 = sym_check_sym_deps(sym);
-		if (sym2)
-			break;
-	}
-out:
-	expr_list_for_each_sym(prop->expr, e, sym)
-		sym->flags &= ~SYMBOL_CHECK;
-
-	if (sym2 && sym_is_choice_value(sym2) &&
-	    prop_get_symbol(sym_get_choice_prop(sym2)) == choice)
-		sym2 = choice;
-
-	dep_stack_remove();
-
-	return sym2;
-}
-
-struct symbol *sym_check_deps(struct symbol *sym)
-{
-	struct symbol *sym2;
-	struct property *prop;
-
-	if (sym->flags & SYMBOL_CHECK) {
-		sym_check_print_recursive(sym);
-		return sym;
-	}
-	if (sym->flags & SYMBOL_CHECKED)
-		return NULL;
-
-	if (sym_is_choice_value(sym)) {
-		struct dep_stack stack;
-
-		/* for choice groups start the check with main choice symbol */
-		dep_stack_insert(&stack, sym);
-		prop = sym_get_choice_prop(sym);
-		sym2 = sym_check_deps(prop_get_symbol(prop));
-		dep_stack_remove();
-	} else if (sym_is_choice(sym)) {
-		sym2 = sym_check_choice_deps(sym);
-	} else {
-		sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
-		sym2 = sym_check_sym_deps(sym);
-		sym->flags &= ~SYMBOL_CHECK;
-	}
-
-	if (sym2 && sym2 == sym)
-		sym2 = NULL;
-
-	return sym2;
-}
-
-struct property *prop_alloc(enum prop_type type, struct symbol *sym)
-{
-	struct property *prop;
-	struct property **propp;
-
-	prop = xmalloc(sizeof(*prop));
-	memset(prop, 0, sizeof(*prop));
-	prop->type = type;
-	prop->sym = sym;
-	prop->file = current_file;
-	prop->lineno = zconf_lineno();
-
-	/* append property to the prop list of symbol */
-	if (sym) {
-		for (propp = &sym->prop; *propp; propp = &(*propp)->next)
-			;
-		*propp = prop;
-	}
-
-	return prop;
-}
-
-struct symbol *prop_get_symbol(struct property *prop)
-{
-	if (prop->expr && (prop->expr->type == E_SYMBOL ||
-			   prop->expr->type == E_LIST))
-		return prop->expr->left.sym;
-	return NULL;
-}
-
-const char *prop_get_type_name(enum prop_type type)
-{
-	switch (type) {
-	case P_PROMPT:
-		return "prompt";
-	case P_ENV:
-		return "env";
-	case P_COMMENT:
-		return "comment";
-	case P_MENU:
-		return "menu";
-	case P_DEFAULT:
-		return "default";
-	case P_CHOICE:
-		return "choice";
-	case P_SELECT:
-		return "select";
-	case P_RANGE:
-		return "range";
-	case P_SYMBOL:
-		return "symbol";
-	case P_UNKNOWN:
-		break;
-	}
-	return "unknown";
-}
-
-static void prop_add_env(const char *env)
-{
-	struct symbol *sym, *sym2;
-	struct property *prop;
-	char *p;
-
-	sym = current_entry->sym;
-	sym->flags |= SYMBOL_AUTO;
-	for_all_properties(sym, prop, P_ENV) {
-		sym2 = prop_get_symbol(prop);
-		if (strcmp(sym2->name, env))
-			menu_warn(current_entry, "redefining environment symbol from %s",
-				  sym2->name);
-		return;
-	}
-
-	prop = prop_alloc(P_ENV, sym);
-	prop->expr = expr_alloc_symbol(sym_lookup(env, SYMBOL_CONST));
-
-	sym_env_list = expr_alloc_one(E_LIST, sym_env_list);
-	sym_env_list->right.sym = sym;
-
-	p = getenv(env);
-	if (p)
-		sym_add_default(sym, p);
-	else
-		menu_warn(current_entry, "environment variable %s undefined", env);
-}
diff --git a/scripts/kconfig_parser/kconfig/util.c b/scripts/kconfig_parser/kconfig/util.c
deleted file mode 100644
index 94f9c83..0000000
--- a/scripts/kconfig_parser/kconfig/util.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
- * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
- *
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include "lkc.h"
-
-/* file already present in list? If not add it */
-struct file *file_lookup(const char *name)
-{
-	struct file *file;
-	const char *file_name = sym_expand_string_value(name);
-
-	for (file = file_list; file; file = file->next) {
-		if (!strcmp(name, file->name)) {
-			free((void *)file_name);
-			return file;
-		}
-	}
-
-	file = xmalloc(sizeof(*file));
-	memset(file, 0, sizeof(*file));
-	file->name = file_name;
-	file->next = file_list;
-	file_list = file;
-	return file;
-}
-
-/* write a dependency file as used by kbuild to track dependencies */
-int file_write_dep(const char *name)
-{
-	struct symbol *sym, *env_sym;
-	struct expr *e;
-	struct file *file;
-	FILE *out;
-
-	if (!name)
-		name = ".kconfig.d";
-	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%s: \\\n"
-		     "\t$(deps_config)\n\n", conf_get_autoconfig_name());
-
-	expr_list_for_each_sym(sym_env_list, e, sym) {
-		struct property *prop;
-		const char *value;
-
-		prop = sym_get_env_prop(sym);
-		env_sym = prop_get_symbol(prop);
-		if (!env_sym)
-			continue;
-		value = getenv(env_sym->name);
-		if (!value)
-			value = "";
-		fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
-		fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
-		fprintf(out, "endif\n");
-	}
-
-	fprintf(out, "\n$(deps_config): ;\n");
-	fclose(out);
-	rename("..config.tmp", name);
-	return 0;
-}
-
-
-/* Allocate initial growable string */
-struct gstr str_new(void)
-{
-	struct gstr gs;
-	gs.s = xmalloc(sizeof(char) * 64);
-	gs.len = 64;
-	gs.max_width = 0;
-	strcpy(gs.s, "\0");
-	return gs;
-}
-
-/* Allocate and assign growable string */
-struct gstr str_assign(const char *s)
-{
-	struct gstr gs;
-	gs.s = strdup(s);
-	gs.len = strlen(s) + 1;
-	gs.max_width = 0;
-	return gs;
-}
-
-/* Free storage for growable string */
-void str_free(struct gstr *gs)
-{
-	if (gs->s)
-		free(gs->s);
-	gs->s = NULL;
-	gs->len = 0;
-}
-
-/* Append to growable string */
-void str_append(struct gstr *gs, const char *s)
-{
-	size_t l;
-	if (s) {
-		l = strlen(gs->s) + strlen(s) + 1;
-		if (l > gs->len) {
-			gs->s   = realloc(gs->s, l);
-			gs->len = l;
-		}
-		strcat(gs->s, s);
-	}
-}
-
-/* Append printf formatted string to growable string */
-void str_printf(struct gstr *gs, const char *fmt, ...)
-{
-	va_list ap;
-	char s[10000]; /* big enough... */
-	va_start(ap, fmt);
-	vsnprintf(s, sizeof(s), fmt, ap);
-	str_append(gs, s);
-	va_end(ap);
-}
-
-/* Retrieve value of growable string */
-const char *str_get(struct gstr *gs)
-{
-	return gs->s;
-}
-
-void *xmalloc(size_t size)
-{
-	void *p = malloc(size);
-	if (p)
-		return p;
-	fprintf(stderr, "Out of memory.\n");
-	exit(1);
-}
-
-void *xcalloc(size_t nmemb, size_t size)
-{
-	void *p = calloc(nmemb, size);
-	if (p)
-		return p;
-	fprintf(stderr, "Out of memory.\n");
-	exit(1);
-}
diff --git a/scripts/kconfig_parser/kconfig/zconf.gperf b/scripts/kconfig_parser/kconfig/zconf.gperf
deleted file mode 100644
index b6ac02d..0000000
--- a/scripts/kconfig_parser/kconfig/zconf.gperf
+++ /dev/null
@@ -1,48 +0,0 @@
-%language=ANSI-C
-%define hash-function-name kconf_id_hash
-%define lookup-function-name kconf_id_lookup
-%define string-pool-name kconf_id_strings
-%compare-strncmp
-%enum
-%pic
-%struct-type
-
-struct kconf_id;
-
-static const struct kconf_id *kconf_id_lookup(register const char *str, register unsigned int len);
-
-%%
-mainmenu,	T_MAINMENU,	TF_COMMAND
-menu,		T_MENU,		TF_COMMAND
-endmenu,	T_ENDMENU,	TF_COMMAND
-source,		T_SOURCE,	TF_COMMAND
-choice,		T_CHOICE,	TF_COMMAND
-endchoice,	T_ENDCHOICE,	TF_COMMAND
-comment,	T_COMMENT,	TF_COMMAND
-config,		T_CONFIG,	TF_COMMAND
-menuconfig,	T_MENUCONFIG,	TF_COMMAND
-help,		T_HELP,		TF_COMMAND
-if,		T_IF,		TF_COMMAND|TF_PARAM
-endif,		T_ENDIF,	TF_COMMAND
-depends,	T_DEPENDS,	TF_COMMAND
-optional,	T_OPTIONAL,	TF_COMMAND
-default,	T_DEFAULT,	TF_COMMAND, S_UNKNOWN
-prompt,		T_PROMPT,	TF_COMMAND
-tristate,	T_TYPE,		TF_COMMAND, S_TRISTATE
-def_tristate,	T_DEFAULT,	TF_COMMAND, S_TRISTATE
-bool,		T_TYPE,		TF_COMMAND, S_BOOLEAN
-boolean,	T_TYPE,		TF_COMMAND, S_BOOLEAN
-def_bool,	T_DEFAULT,	TF_COMMAND, S_BOOLEAN
-int,		T_TYPE,		TF_COMMAND, S_INT
-hex,		T_TYPE,		TF_COMMAND, S_HEX
-string,		T_TYPE,		TF_COMMAND, S_STRING
-select,		T_SELECT,	TF_COMMAND
-range,		T_RANGE,	TF_COMMAND
-visible,	T_VISIBLE,	TF_COMMAND
-option,		T_OPTION,	TF_COMMAND
-on,		T_ON,		TF_PARAM
-modules,	T_OPT_MODULES,	TF_OPTION
-defconfig_list,	T_OPT_DEFCONFIG_LIST,TF_OPTION
-env,		T_OPT_ENV,	TF_OPTION
-allnoconfig_y,	T_OPT_ALLNOCONFIG_Y,TF_OPTION
-%%
diff --git a/scripts/kconfig_parser/kconfig/zconf.l b/scripts/kconfig_parser/kconfig/zconf.l
deleted file mode 100644
index 6c62d93..0000000
--- a/scripts/kconfig_parser/kconfig/zconf.l
+++ /dev/null
@@ -1,363 +0,0 @@
-%option nostdinit noyywrap never-interactive full ecs
-%option 8bit nodefault perf-report perf-report
-%option noinput
-%x COMMAND HELP STRING PARAM
-%{
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "lkc.h"
-
-#define START_STRSIZE	16
-
-static struct {
-	struct file *file;
-	int lineno;
-} current_pos;
-
-static char *text;
-static int text_size, text_asize;
-
-struct buffer {
-	struct buffer *parent;
-	YY_BUFFER_STATE state;
-};
-
-struct buffer *current_buf;
-
-static int last_ts, first_ts;
-
-static void zconf_endhelp(void);
-static void zconf_endfile(void);
-
-static void new_string(void)
-{
-	text = xmalloc(START_STRSIZE);
-	text_asize = START_STRSIZE;
-	text_size = 0;
-	*text = 0;
-}
-
-static void append_string(const char *str, int size)
-{
-	int new_size = text_size + size + 1;
-	if (new_size > text_asize) {
-		new_size += START_STRSIZE - 1;
-		new_size &= -START_STRSIZE;
-		text = realloc(text, new_size);
-		text_asize = new_size;
-	}
-	memcpy(text + text_size, str, size);
-	text_size += size;
-	text[text_size] = 0;
-}
-
-static void alloc_string(const char *str, int size)
-{
-	text = xmalloc(size + 1);
-	memcpy(text, str, size);
-	text[size] = 0;
-}
-%}
-
-n	[A-Za-z0-9_]
-
-%%
-	int str = 0;
-	int ts, i;
-
-[ \t]*#.*\n	|
-[ \t]*\n	{
-	current_file->lineno++;
-	return T_EOL;
-}
-[ \t]*#.*
-
-
-[ \t]+	{
-	BEGIN(COMMAND);
-}
-
-.	{
-	unput(yytext[0]);
-	BEGIN(COMMAND);
-}
-
-
-<COMMAND>{
-	{n}+	{
-		const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
-		BEGIN(PARAM);
-		current_pos.file = current_file;
-		current_pos.lineno = current_file->lineno;
-		if (id && id->flags & TF_COMMAND) {
-			zconflval.id = id;
-			return id->token;
-		}
-		alloc_string(yytext, yyleng);
-		zconflval.string = text;
-		return T_WORD;
-	}
-	.
-	\n	{
-		BEGIN(INITIAL);
-		current_file->lineno++;
-		return T_EOL;
-	}
-}
-
-<PARAM>{
-	"&&"	return T_AND;
-	"||"	return T_OR;
-	"("	return T_OPEN_PAREN;
-	")"	return T_CLOSE_PAREN;
-	"!"	return T_NOT;
-	"="	return T_EQUAL;
-	"!="	return T_UNEQUAL;
-	\"|\'	{
-		str = yytext[0];
-		new_string();
-		BEGIN(STRING);
-	}
-	\n	BEGIN(INITIAL); current_file->lineno++; return T_EOL;
-	---	/* ignore */
-	({n}|[-/.])+	{
-		const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
-		if (id && id->flags & TF_PARAM) {
-			zconflval.id = id;
-			return id->token;
-		}
-		alloc_string(yytext, yyleng);
-		zconflval.string = text;
-		return T_WORD;
-	}
-	#.*	/* comment */
-	\\\n	current_file->lineno++;
-	.
-	<<EOF>> {
-		BEGIN(INITIAL);
-	}
-}
-
-<STRING>{
-	[^'"\\\n]+/\n	{
-		append_string(yytext, yyleng);
-		zconflval.string = text;
-		return T_WORD_QUOTE;
-	}
-	[^'"\\\n]+	{
-		append_string(yytext, yyleng);
-	}
-	\\.?/\n	{
-		append_string(yytext + 1, yyleng - 1);
-		zconflval.string = text;
-		return T_WORD_QUOTE;
-	}
-	\\.?	{
-		append_string(yytext + 1, yyleng - 1);
-	}
-	\'|\"	{
-		if (str == yytext[0]) {
-			BEGIN(PARAM);
-			zconflval.string = text;
-			return T_WORD_QUOTE;
-		} else
-			append_string(yytext, 1);
-	}
-	\n	{
-		printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
-		current_file->lineno++;
-		BEGIN(INITIAL);
-		return T_EOL;
-	}
-	<<EOF>>	{
-		BEGIN(INITIAL);
-	}
-}
-
-<HELP>{
-	[ \t]+	{
-		ts = 0;
-		for (i = 0; i < yyleng; i++) {
-			if (yytext[i] == '\t')
-				ts = (ts & ~7) + 8;
-			else
-				ts++;
-		}
-		last_ts = ts;
-		if (first_ts) {
-			if (ts < first_ts) {
-				zconf_endhelp();
-				return T_HELPTEXT;
-			}
-			ts -= first_ts;
-			while (ts > 8) {
-				append_string("        ", 8);
-				ts -= 8;
-			}
-			append_string("        ", ts);
-		}
-	}
-	[ \t]*\n/[^ \t\n] {
-		current_file->lineno++;
-		zconf_endhelp();
-		return T_HELPTEXT;
-	}
-	[ \t]*\n	{
-		current_file->lineno++;
-		append_string("\n", 1);
-	}
-	[^ \t\n].* {
-		while (yyleng) {
-			if ((yytext[yyleng-1] != ' ') && (yytext[yyleng-1] != '\t'))
-				break;
-			yyleng--;
-		}
-		append_string(yytext, yyleng);
-		if (!first_ts)
-			first_ts = last_ts;
-	}
-	<<EOF>>	{
-		zconf_endhelp();
-		return T_HELPTEXT;
-	}
-}
-
-<<EOF>>	{
-	if (current_file) {
-		zconf_endfile();
-		return T_EOL;
-	}
-	fclose(yyin);
-	yyterminate();
-}
-
-%%
-void zconf_starthelp(void)
-{
-	new_string();
-	last_ts = first_ts = 0;
-	BEGIN(HELP);
-}
-
-static void zconf_endhelp(void)
-{
-	zconflval.string = text;
-	BEGIN(INITIAL);
-}
-
-
-/*
- * Try to open specified file with following names:
- * ./name
- * $(srctree)/name
- * The latter is used when srctree is separate from objtree
- * when compiling the kernel.
- * Return NULL if file is not found.
- */
-FILE *zconf_fopen(const char *name)
-{
-	char *env, fullname[PATH_MAX+1];
-	FILE *f;
-
-	f = fopen(name, "r");
-	if (!f && name != NULL && name[0] != '/') {
-		env = getenv(SRCTREE);
-		if (env) {
-			sprintf(fullname, "%s/%s", env, name);
-			f = fopen(fullname, "r");
-		}
-	}
-	return f;
-}
-
-void zconf_initscan(const char *name)
-{
-	yyin = zconf_fopen(name);
-	if (!yyin) {
-		printf("can't find file %s\n", name);
-		exit(1);
-	}
-
-	current_buf = xmalloc(sizeof(*current_buf));
-	memset(current_buf, 0, sizeof(*current_buf));
-
-	current_file = file_lookup(name);
-	current_file->lineno = 1;
-}
-
-void zconf_nextfile(const char *name)
-{
-	struct file *iter;
-	struct file *file = file_lookup(name);
-	struct buffer *buf = xmalloc(sizeof(*buf));
-	memset(buf, 0, sizeof(*buf));
-
-	current_buf->state = YY_CURRENT_BUFFER;
-	yyin = zconf_fopen(file->name);
-	if (!yyin) {
-		printf("%s:%d: can't open file \"%s\"\n",
-		    zconf_curname(), zconf_lineno(), file->name);
-		exit(1);
-	}
-	yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
-	buf->parent = current_buf;
-	current_buf = buf;
-
-	for (iter = current_file->parent; iter; iter = iter->parent ) {
-		if (!strcmp(current_file->name,iter->name) ) {
-			printf("%s:%d: recursive inclusion detected. "
-			       "Inclusion path:\n  current file : '%s'\n",
-			       zconf_curname(), zconf_lineno(),
-			       zconf_curname());
-			iter = current_file->parent;
-			while (iter && \
-			       strcmp(iter->name,current_file->name)) {
-				printf("  included from: '%s:%d'\n",
-				       iter->name, iter->lineno-1);
-				iter = iter->parent;
-			}
-			if (iter)
-				printf("  included from: '%s:%d'\n",
-				       iter->name, iter->lineno+1);
-			exit(1);
-		}
-	}
-	file->lineno = 1;
-	file->parent = current_file;
-	current_file = file;
-}
-
-static void zconf_endfile(void)
-{
-	struct buffer *parent;
-
-	current_file = current_file->parent;
-
-	parent = current_buf->parent;
-	if (parent) {
-		fclose(yyin);
-		yy_delete_buffer(YY_CURRENT_BUFFER);
-		yy_switch_to_buffer(parent->state);
-	}
-	free(current_buf);
-	current_buf = parent;
-}
-
-int zconf_lineno(void)
-{
-	return current_pos.lineno;
-}
-
-const char *zconf_curname(void)
-{
-	return current_pos.file ? current_pos.file->name : "<none>";
-}
diff --git a/scripts/kconfig_parser/kconfig/zconf.y b/scripts/kconfig_parser/kconfig/zconf.y
deleted file mode 100644
index 0f683cf..0000000
--- a/scripts/kconfig_parser/kconfig/zconf.y
+++ /dev/null
@@ -1,733 +0,0 @@
-%{
-/*
- * 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-
-#include "lkc.h"
-
-#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
-
-#define PRINTD		0x0001
-#define DEBUG_PARSE	0x0002
-
-int cdebug = PRINTD;
-
-extern int zconflex(void);
-static void zconfprint(const char *err, ...);
-static void zconf_error(const char *err, ...);
-static void zconferror(const char *err);
-static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
-
-struct symbol *symbol_hash[SYMBOL_HASHSIZE];
-
-static struct menu *current_menu, *current_entry;
-
-%}
-%expect 30
-
-%union
-{
-	char *string;
-	struct file *file;
-	struct symbol *symbol;
-	struct expr *expr;
-	struct menu *menu;
-	const struct kconf_id *id;
-}
-
-%token <id>T_MAINMENU
-%token <id>T_MENU
-%token <id>T_ENDMENU
-%token <id>T_SOURCE
-%token <id>T_CHOICE
-%token <id>T_ENDCHOICE
-%token <id>T_COMMENT
-%token <id>T_CONFIG
-%token <id>T_MENUCONFIG
-%token <id>T_HELP
-%token <string> T_HELPTEXT
-%token <id>T_IF
-%token <id>T_ENDIF
-%token <id>T_DEPENDS
-%token <id>T_OPTIONAL
-%token <id>T_PROMPT
-%token <id>T_TYPE
-%token <id>T_DEFAULT
-%token <id>T_SELECT
-%token <id>T_RANGE
-%token <id>T_VISIBLE
-%token <id>T_OPTION
-%token <id>T_ON
-%token <string> T_WORD
-%token <string> T_WORD_QUOTE
-%token T_UNEQUAL
-%token T_CLOSE_PAREN
-%token T_OPEN_PAREN
-%token T_EOL
-
-%left T_OR
-%left T_AND
-%left T_EQUAL T_UNEQUAL
-%nonassoc T_NOT
-
-%type <string> prompt
-%type <symbol> symbol
-%type <expr> expr
-%type <expr> if_expr
-%type <id> end
-%type <id> option_name
-%type <menu> if_entry menu_entry choice_entry
-%type <string> symbol_option_arg word_opt
-
-%destructor {
-	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
-		$$->file->name, $$->lineno);
-	if (current_menu == $$)
-		menu_end_menu();
-} if_entry menu_entry choice_entry
-
-%{
-/* Include zconf.hash.c here so it can see the token constants. */
-#include "zconf.hash.c"
-%}
-
-%%
-input: nl start | start;
-
-start: mainmenu_stmt stmt_list | stmt_list;
-
-stmt_list:
-	  /* empty */
-	| stmt_list common_stmt
-	| stmt_list choice_stmt
-	| stmt_list menu_stmt
-	| stmt_list end			{ zconf_error("unexpected end statement"); }
-	| stmt_list T_WORD error T_EOL	{ zconf_error("unknown statement \"%s\"", $2); }
-	| stmt_list option_name error T_EOL
-{
-	zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
-}
-	| stmt_list error T_EOL		{ zconf_error("invalid statement"); }
-;
-
-option_name:
-	T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
-;
-
-common_stmt:
-	  T_EOL
-	| if_stmt
-	| comment_stmt
-	| config_stmt
-	| menuconfig_stmt
-	| source_stmt
-;
-
-option_error:
-	  T_WORD error T_EOL		{ zconf_error("unknown option \"%s\"", $1); }
-	| error T_EOL			{ zconf_error("invalid option"); }
-;
-
-
-/* config/menuconfig entry */
-
-config_entry_start: T_CONFIG T_WORD T_EOL
-{
-	struct symbol *sym = sym_lookup($2, 0);
-	sym->flags |= SYMBOL_OPTIONAL;
-	menu_add_entry(sym);
-	printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
-};
-
-config_stmt: config_entry_start config_option_list
-{
-	menu_end_entry();
-	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
-};
-
-menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
-{
-	struct symbol *sym = sym_lookup($2, 0);
-	sym->flags |= SYMBOL_OPTIONAL;
-	menu_add_entry(sym);
-	printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
-};
-
-menuconfig_stmt: menuconfig_entry_start config_option_list
-{
-	if (current_entry->prompt)
-		current_entry->prompt->type = P_MENU;
-	else
-		zconfprint("warning: menuconfig statement without prompt");
-	menu_end_entry();
-	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
-};
-
-config_option_list:
-	  /* empty */
-	| config_option_list config_option
-	| config_option_list symbol_option
-	| config_option_list depends
-	| config_option_list help
-	| config_option_list option_error
-	| config_option_list T_EOL
-;
-
-config_option: T_TYPE prompt_stmt_opt T_EOL
-{
-	menu_set_type($1->stype);
-	printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
-		zconf_curname(), zconf_lineno(),
-		$1->stype);
-};
-
-config_option: T_PROMPT prompt if_expr T_EOL
-{
-	menu_add_prompt(P_PROMPT, $2, $3);
-	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
-};
-
-config_option: T_DEFAULT expr if_expr T_EOL
-{
-	menu_add_expr(P_DEFAULT, $2, $3);
-	if ($1->stype != S_UNKNOWN)
-		menu_set_type($1->stype);
-	printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
-		zconf_curname(), zconf_lineno(),
-		$1->stype);
-};
-
-config_option: T_SELECT T_WORD if_expr T_EOL
-{
-	menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
-	printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
-};
-
-config_option: T_RANGE symbol symbol if_expr T_EOL
-{
-	menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
-	printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
-};
-
-symbol_option: T_OPTION symbol_option_list T_EOL
-;
-
-symbol_option_list:
-	  /* empty */
-	| symbol_option_list T_WORD symbol_option_arg
-{
-	const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
-	if (id && id->flags & TF_OPTION)
-		menu_add_option(id->token, $3);
-	else
-		zconfprint("warning: ignoring unknown option %s", $2);
-	free($2);
-};
-
-symbol_option_arg:
-	  /* empty */		{ $$ = NULL; }
-	| T_EQUAL prompt	{ $$ = $2; }
-;
-
-/* choice entry */
-
-choice: T_CHOICE word_opt T_EOL
-{
-	struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
-	sym->flags |= SYMBOL_AUTO;
-	menu_add_entry(sym);
-	menu_add_expr(P_CHOICE, NULL, NULL);
-	printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
-};
-
-choice_entry: choice choice_option_list
-{
-	$$ = menu_add_menu();
-};
-
-choice_end: end
-{
-	if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
-		menu_end_menu();
-		printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
-	}
-};
-
-choice_stmt: choice_entry choice_block choice_end
-;
-
-choice_option_list:
-	  /* empty */
-	| choice_option_list choice_option
-	| choice_option_list depends
-	| choice_option_list help
-	| choice_option_list T_EOL
-	| choice_option_list option_error
-;
-
-choice_option: T_PROMPT prompt if_expr T_EOL
-{
-	menu_add_prompt(P_PROMPT, $2, $3);
-	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
-};
-
-choice_option: T_TYPE prompt_stmt_opt T_EOL
-{
-	if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
-		menu_set_type($1->stype);
-		printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
-			zconf_curname(), zconf_lineno(),
-			$1->stype);
-	} else
-		YYERROR;
-};
-
-choice_option: T_OPTIONAL T_EOL
-{
-	current_entry->sym->flags |= SYMBOL_OPTIONAL;
-	printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
-};
-
-choice_option: T_DEFAULT T_WORD if_expr T_EOL
-{
-	if ($1->stype == S_UNKNOWN) {
-		menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
-		printd(DEBUG_PARSE, "%s:%d:default\n",
-			zconf_curname(), zconf_lineno());
-	} else
-		YYERROR;
-};
-
-choice_block:
-	  /* empty */
-	| choice_block common_stmt
-;
-
-/* if entry */
-
-if_entry: T_IF expr nl
-{
-	printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
-	menu_add_entry(NULL);
-	menu_add_dep($2);
-	$$ = menu_add_menu();
-};
-
-if_end: end
-{
-	if (zconf_endtoken($1, T_IF, T_ENDIF)) {
-		menu_end_menu();
-		printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
-	}
-};
-
-if_stmt: if_entry if_block if_end
-;
-
-if_block:
-	  /* empty */
-	| if_block common_stmt
-	| if_block menu_stmt
-	| if_block choice_stmt
-;
-
-/* mainmenu entry */
-
-mainmenu_stmt: T_MAINMENU prompt nl
-{
-	menu_add_prompt(P_MENU, $2, NULL);
-};
-
-/* menu entry */
-
-menu: T_MENU prompt T_EOL
-{
-	menu_add_entry(NULL);
-	menu_add_prompt(P_MENU, $2, NULL);
-	printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
-};
-
-menu_entry: menu visibility_list depends_list
-{
-	$$ = menu_add_menu();
-};
-
-menu_end: end
-{
-	if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
-		menu_end_menu();
-		printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
-	}
-};
-
-menu_stmt: menu_entry menu_block menu_end
-;
-
-menu_block:
-	  /* empty */
-	| menu_block common_stmt
-	| menu_block menu_stmt
-	| menu_block choice_stmt
-;
-
-source_stmt: T_SOURCE prompt T_EOL
-{
-	printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
-	zconf_nextfile($2);
-};
-
-/* comment entry */
-
-comment: T_COMMENT prompt T_EOL
-{
-	menu_add_entry(NULL);
-	menu_add_prompt(P_COMMENT, $2, NULL);
-	printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
-};
-
-comment_stmt: comment depends_list
-{
-	menu_end_entry();
-};
-
-/* help option */
-
-help_start: T_HELP T_EOL
-{
-	printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
-	zconf_starthelp();
-};
-
-help: help_start T_HELPTEXT
-{
-	current_entry->help = $2;
-};
-
-/* depends option */
-
-depends_list:
-	  /* empty */
-	| depends_list depends
-	| depends_list T_EOL
-	| depends_list option_error
-;
-
-depends: T_DEPENDS T_ON expr T_EOL
-{
-	menu_add_dep($3);
-	printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
-};
-
-/* visibility option */
-
-visibility_list:
-	  /* empty */
-	| visibility_list visible
-	| visibility_list T_EOL
-;
-
-visible: T_VISIBLE if_expr
-{
-	menu_add_visibility($2);
-};
-
-/* prompt statement */
-
-prompt_stmt_opt:
-	  /* empty */
-	| prompt if_expr
-{
-	menu_add_prompt(P_PROMPT, $1, $2);
-};
-
-prompt:	  T_WORD
-	| T_WORD_QUOTE
-;
-
-end:	  T_ENDMENU T_EOL	{ $$ = $1; }
-	| T_ENDCHOICE T_EOL	{ $$ = $1; }
-	| T_ENDIF T_EOL		{ $$ = $1; }
-;
-
-nl:
-	  T_EOL
-	| nl T_EOL
-;
-
-if_expr:  /* empty */			{ $$ = NULL; }
-	| T_IF expr			{ $$ = $2; }
-;
-
-expr:	  symbol				{ $$ = expr_alloc_symbol($1); }
-	| symbol T_EQUAL symbol			{ $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
-	| symbol T_UNEQUAL symbol		{ $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
-	| T_OPEN_PAREN expr T_CLOSE_PAREN	{ $$ = $2; }
-	| T_NOT expr				{ $$ = expr_alloc_one(E_NOT, $2); }
-	| expr T_OR expr			{ $$ = expr_alloc_two(E_OR, $1, $3); }
-	| expr T_AND expr			{ $$ = expr_alloc_two(E_AND, $1, $3); }
-;
-
-symbol:	  T_WORD	{ $$ = sym_lookup($1, 0); free($1); }
-	| T_WORD_QUOTE	{ $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
-;
-
-word_opt: /* empty */			{ $$ = NULL; }
-	| T_WORD
-
-%%
-
-void conf_parse(const char *name)
-{
-	struct symbol *sym;
-	int i;
-
-	zconf_initscan(name);
-
-	sym_init();
-	_menu_init();
-	rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
-
-	if (getenv("ZCONF_DEBUG"))
-		zconfdebug = 1;
-	zconfparse();
-	if (zconfnerrs)
-		exit(1);
-	if (!modules_sym)
-		modules_sym = sym_find( "n" );
-
-	rootmenu.prompt->text = _(rootmenu.prompt->text);
-	rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
-
-	menu_finalize(&rootmenu);
-	for_all_symbols(i, sym) {
-		if (sym_check_deps(sym))
-			zconfnerrs++;
-	}
-	if (zconfnerrs)
-		exit(1);
-	sym_set_change_count(1);
-}
-
-static const char *zconf_tokenname(int token)
-{
-	switch (token) {
-	case T_MENU:		return "menu";
-	case T_ENDMENU:		return "endmenu";
-	case T_CHOICE:		return "choice";
-	case T_ENDCHOICE:	return "endchoice";
-	case T_IF:		return "if";
-	case T_ENDIF:		return "endif";
-	case T_DEPENDS:		return "depends";
-	case T_VISIBLE:		return "visible";
-	}
-	return "<token>";
-}
-
-static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
-{
-	if (id->token != endtoken) {
-		zconf_error("unexpected '%s' within %s block",
-			kconf_id_strings + id->name, zconf_tokenname(starttoken));
-		zconfnerrs++;
-		return false;
-	}
-	if (current_menu->file != current_file) {
-		zconf_error("'%s' in different file than '%s'",
-			kconf_id_strings + id->name, zconf_tokenname(starttoken));
-		fprintf(stderr, "%s:%d: location of the '%s'\n",
-			current_menu->file->name, current_menu->lineno,
-			zconf_tokenname(starttoken));
-		zconfnerrs++;
-		return false;
-	}
-	return true;
-}
-
-static void zconfprint(const char *err, ...)
-{
-	va_list ap;
-
-	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
-	va_start(ap, err);
-	vfprintf(stderr, err, ap);
-	va_end(ap);
-	fprintf(stderr, "\n");
-}
-
-static void zconf_error(const char *err, ...)
-{
-	va_list ap;
-
-	zconfnerrs++;
-	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
-	va_start(ap, err);
-	vfprintf(stderr, err, ap);
-	va_end(ap);
-	fprintf(stderr, "\n");
-}
-
-static void zconferror(const char *err)
-{
-	fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
-}
-
-static void print_quoted_string(FILE *out, const char *str)
-{
-	const char *p;
-	int len;
-
-	putc('"', out);
-	while ((p = strchr(str, '"'))) {
-		len = p - str;
-		if (len)
-			fprintf(out, "%.*s", len, str);
-		fputs("\\\"", out);
-		str = p + 1;
-	}
-	fputs(str, out);
-	putc('"', out);
-}
-
-static void print_symbol(FILE *out, struct menu *menu)
-{
-	struct symbol *sym = menu->sym;
-	struct property *prop;
-
-	if (sym_is_choice(sym))
-		fprintf(out, "\nchoice\n");
-	else
-		fprintf(out, "\nconfig %s\n", sym->name);
-	switch (sym->type) {
-	case S_BOOLEAN:
-		fputs("  boolean\n", out);
-		break;
-	case S_TRISTATE:
-		fputs("  tristate\n", out);
-		break;
-	case S_STRING:
-		fputs("  string\n", out);
-		break;
-	case S_INT:
-		fputs("  integer\n", out);
-		break;
-	case S_HEX:
-		fputs("  hex\n", out);
-		break;
-	default:
-		fputs("  ???\n", out);
-		break;
-	}
-	for (prop = sym->prop; prop; prop = prop->next) {
-		if (prop->menu != menu)
-			continue;
-		switch (prop->type) {
-		case P_PROMPT:
-			fputs("  prompt ", out);
-			print_quoted_string(out, prop->text);
-			if (!expr_is_yes(prop->visible.expr)) {
-				fputs(" if ", out);
-				expr_fprint(prop->visible.expr, out);
-			}
-			fputc('\n', out);
-			break;
-		case P_DEFAULT:
-			fputs( "  default ", out);
-			expr_fprint(prop->expr, out);
-			if (!expr_is_yes(prop->visible.expr)) {
-				fputs(" if ", out);
-				expr_fprint(prop->visible.expr, out);
-			}
-			fputc('\n', out);
-			break;
-		case P_CHOICE:
-			fputs("  #choice value\n", out);
-			break;
-		case P_SELECT:
-			fputs( "  select ", out);
-			expr_fprint(prop->expr, out);
-			fputc('\n', out);
-			break;
-		case P_RANGE:
-			fputs( "  range ", out);
-			expr_fprint(prop->expr, out);
-			fputc('\n', out);
-			break;
-		case P_MENU:
-			fputs( "  menu ", out);
-			print_quoted_string(out, prop->text);
-			fputc('\n', out);
-			break;
-		default:
-			fprintf(out, "  unknown prop %d!\n", prop->type);
-			break;
-		}
-	}
-	if (menu->help) {
-		int len = strlen(menu->help);
-		while (menu->help[--len] == '\n')
-			menu->help[len] = 0;
-		fprintf(out, "  help\n%s\n", menu->help);
-	}
-}
-
-void zconfdump(FILE *out)
-{
-	struct property *prop;
-	struct symbol *sym;
-	struct menu *menu;
-
-	menu = rootmenu.list;
-	while (menu) {
-		if ((sym = menu->sym))
-			print_symbol(out, menu);
-		else if ((prop = menu->prompt)) {
-			switch (prop->type) {
-			case P_COMMENT:
-				fputs("\ncomment ", out);
-				print_quoted_string(out, prop->text);
-				fputs("\n", out);
-				break;
-			case P_MENU:
-				fputs("\nmenu ", out);
-				print_quoted_string(out, prop->text);
-				fputs("\n", out);
-				break;
-			default:
-				;
-			}
-			if (!expr_is_yes(prop->visible.expr)) {
-				fputs("  depends ", out);
-				expr_fprint(prop->visible.expr, out);
-				fputc('\n', out);
-			}
-		}
-
-		if (menu->list)
-			menu = menu->list;
-		else if (menu->next)
-			menu = menu->next;
-		else while ((menu = menu->parent)) {
-			if (menu->prompt && menu->prompt->type == P_MENU)
-				fputs("\nendmenu\n", out);
-			if (menu->next) {
-				menu = menu->next;
-				break;
-			}
-		}
-	}
-}
-
-#include "zconf.lex.c"
-#include "util.c"
-#include "confdata.c"
-#include "expr.c"
-#include "symbol.c"
-#include "menu.c"
diff --git a/scripts/kconfig_parser/parser.c b/scripts/kconfig_parser/parser.c
index a0425db..933c26c 100644
--- a/scripts/kconfig_parser/parser.c
+++ b/scripts/kconfig_parser/parser.c
@@ -11,7 +11,7 @@
 #include <locale.h>
 #include <stdbool.h>
 #include <argp.h>
-#include "kconfig/lkc.h"
+#include "lkc.h"
 #include "symlist.h"
 #include "output.h"
 #include "macros.h"
@@ -50,7 +50,7 @@ int main(int argc, char **argv) {
     textdomain(PACKAGE);
 
     conf_parse(argv[1]);
-    sym_clear_all_valid();
+    //sym_clear_all_valid();
 
     gsymlist = symlist_create();