Removed tools/kconfig

1 files changed, 0 insertions, 1263 deletions

diff --git a/tools/kconfig/confdata.c b/tools/kconfig/confdata.c
deleted file mode 100644
index b7c9f1d..0000000
--- a/tools/kconfig/confdata.c
+++ /dev/null
@@ -1,1263 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- */
-
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "lkc.h"
-
-/* return true if 'path' exists, false otherwise */
-static bool is_present(const char *path)
-{
-	struct stat st;
-
-	return !stat(path, &st);
-}
-
-/* return true if 'path' exists and it is a directory, false otherwise */
-static bool is_dir(const char *path)
-{
-	struct stat st;
-
-	if (stat(path, &st))
-		return false;
-
-	return S_ISDIR(st.st_mode);
-}
-
-/* return true if the given two files are the same, false otherwise */
-static bool is_same(const char *file1, const char *file2)
-{
-	int fd1, fd2;
-	struct stat st1, st2;
-	void *map1, *map2;
-	bool ret = false;
-
-	fd1 = open(file1, O_RDONLY);
-	if (fd1 < 0)
-		return ret;
-
-	fd2 = open(file2, O_RDONLY);
-	if (fd2 < 0)
-		goto close1;
-
-	ret = fstat(fd1, &st1);
-	if (ret)
-		goto close2;
-	ret = fstat(fd2, &st2);
-	if (ret)
-		goto close2;
-
-	if (st1.st_size != st2.st_size)
-		goto close2;
-
-	map1 = mmap(NULL, st1.st_size, PROT_READ, MAP_PRIVATE, fd1, 0);
-	if (map1 == MAP_FAILED)
-		goto close2;
-
-	map2 = mmap(NULL, st2.st_size, PROT_READ, MAP_PRIVATE, fd2, 0);
-	if (map2 == MAP_FAILED)
-		goto close2;
-
-	if (bcmp(map1, map2, st1.st_size))
-		goto close2;
-
-	ret = true;
-close2:
-	close(fd2);
-close1:
-	close(fd1);
-
-	return ret;
-}
-
-/*
- * Create the parent directory of the given path.
- *
- * For example, if 'include/config/auto.conf' is given, create 'include/config'.
- */
-static int make_parent_dir(const char *path)
-{
-	char tmp[PATH_MAX + 1];
-	char *p;
-
-	strncpy(tmp, path, sizeof(tmp));
-	tmp[sizeof(tmp) - 1] = 0;
-
-	/* Remove the base name. Just return if nothing is left */
-	p = strrchr(tmp, '/');
-	if (!p)
-		return 0;
-	*(p + 1) = 0;
-
-	/* Just in case it is an absolute path */
-	p = tmp;
-	while (*p == '/')
-		p++;
-
-	while ((p = strchr(p, '/'))) {
-		*p = 0;
-
-		/* skip if the directory exists */
-		if (!is_dir(tmp) && mkdir(tmp, 0755))
-			return -1;
-
-		*p = '/';
-		while (*p == '/')
-			p++;
-	}
-
-	return 0;
-}
-
-static char depfile_path[PATH_MAX];
-static size_t depfile_prefix_len;
-
-/* touch depfile for symbol 'name' */
-static int conf_touch_dep(const char *name)
-{
-	int fd;
-
-	/* check overflow: prefix + name + '\0' must fit in buffer. */
-	if (depfile_prefix_len + strlen(name) + 1 > sizeof(depfile_path))
-		return -1;
-
-	strcpy(depfile_path + depfile_prefix_len, name);
-
-	fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
-	if (fd == -1)
-		return -1;
-	close(fd);
-
-	return 0;
-}
-
-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;
-
-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 *s)
-{
-	printf("#\n# ");
-	printf("%s", s);
-	printf("\n#\n");
-}
-
-static void (*conf_message_callback)(const char *s) =
-	conf_default_message_callback;
-void conf_set_message_callback(void (*fn)(const char *s))
-{
-	conf_message_callback = fn;
-}
-
-static void conf_message(const char *fmt, ...)
-{
-	va_list ap;
-	char buf[4096];
-
-	if (!conf_message_callback)
-		return;
-
-	va_start(ap, fmt);
-
-	vsnprintf(buf, sizeof(buf), fmt, ap);
-	conf_message_callback(buf);
-	va_end(ap);
-}
-
-const char *conf_get_configname(void)
-{
-	char *name = getenv("KCONFIG_CONFIG");
-
-	return name ? name : ".config";
-}
-
-static const char *conf_get_autoconfig_name(void)
-{
-	char *name = getenv("KCONFIG_AUTOCONFIG");
-
-	return name ? name : "include/config/auto.conf";
-}
-
-static const char *conf_get_autoheader_name(void)
-{
-	char *name = getenv("KCONFIG_AUTOHEADER");
-
-	return name ? name : "include/generated/autoconf.h";
-}
-
-static const char *conf_get_rustccfg_name(void)
-{
-	char *name = getenv("KCONFIG_RUSTCCFG");
-
-	return name ? name : "include/generated/rustc_cfg";
-}
-
-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_STRING:
-		/* No escaping for S_DEF_AUTO (include/config/auto.conf) */
-		if (def != S_DEF_AUTO) {
-			if (*p++ != '"')
-				break;
-			for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
-				if (*p2 == '"') {
-					*p2 = 0;
-					break;
-				}
-				memmove(p2, p2 + 1, strlen(p2));
-			}
-			if (!p2) {
-				conf_warning("invalid string found");
-				return 1;
-			}
-		}
-		/* fall through */
-	case S_INT:
-	case S_HEX:
-		if (sym_string_valid(sym, p)) {
-			sym->def[def].val = xstrdup(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 = xrealloc(*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 {
-		char *env;
-
-		name = conf_get_configname();
-		in = zconf_fopen(name);
-		if (in)
-			goto load;
-		conf_set_changed(true);
-
-		env = getenv("KCONFIG_DEFCONFIG_LIST");
-		if (!env)
-			return 1;
-
-		while (1) {
-			bool is_last;
-
-			while (isspace(*env))
-				env++;
-
-			if (!*env)
-				break;
-
-			p = env;
-			while (*p && !isspace(*p))
-				p++;
-
-			is_last = (*p == '\0');
-
-			*p = '\0';
-
-			in = zconf_fopen(env);
-			if (in) {
-				conf_message("using defaults found in %s",
-					     env);
-				goto load;
-			}
-
-			if (is_last)
-				break;
-
-			env = p + 1;
-		}
-	}
-	if (!in)
-		return 1;
-
-load:
-	conf_filename = name;
-	conf_lineno = 0;
-	conf_warnings = 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) {
-					conf_set_changed(true);
-					continue;
-				}
-			} 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;
-			}
-
-			sym = sym_find(line + strlen(CONFIG_));
-			if (!sym) {
-				if (def == S_DEF_AUTO)
-					/*
-					 * Reading from include/config/auto.conf
-					 * If CONFIG_FOO previously existed in
-					 * auto.conf but it is missing now,
-					 * include/config/FOO must be touched.
-					 */
-					conf_touch_dep(line + strlen(CONFIG_));
-				else
-					conf_set_changed(true);
-				continue;
-			}
-
-			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: %.*s",
-					     (int)strcspn(line, "\r\n"), line);
-
-			continue;
-		}
-
-		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);
-	return 0;
-}
-
-int conf_read(const char *name)
-{
-	struct symbol *sym;
-	int conf_unsaved = 0;
-	int i;
-
-	conf_set_changed(false);
-
-	if (conf_read_simple(name, S_DEF_USER)) {
-		sym_calc_value(modules_sym);
-		return 1;
-	}
-
-	sym_calc_value(modules_sym);
-
-	for_all_symbols(i, sym) {
-		sym_calc_value(sym);
-		if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE))
-			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))
-					continue;
-				break;
-			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;
-			}
-		}
-	}
-
-	if (conf_warnings || conf_unsaved)
-		conf_set_changed(true);
-
-	return 0;
-}
-
-struct comment_style {
-	const char *decoration;
-	const char *prefix;
-	const char *postfix;
-};
-
-static const struct comment_style comment_style_pound = {
-	.decoration = "#",
-	.prefix = "#",
-	.postfix = "#",
-};
-
-static const struct comment_style comment_style_c = {
-	.decoration = " *",
-	.prefix = "/*",
-	.postfix = " */",
-};
-
-static void conf_write_heading(FILE *fp, const struct comment_style *cs)
-{
-	if (!cs)
-		return;
-
-	fprintf(fp, "%s\n", cs->prefix);
-
-	fprintf(fp, "%s Automatically generated file; DO NOT EDIT.\n",
-		cs->decoration);
-
-	fprintf(fp, "%s %s\n", cs->decoration, rootmenu.prompt->text);
-
-	fprintf(fp, "%s\n", cs->postfix);
-}
-
-/* The returned pointer must be freed on the caller side */
-static char *escape_string_value(const char *in)
-{
-	const char *p;
-	char *out;
-	size_t len;
-
-	len = strlen(in) + strlen("\"\"") + 1;
-
-	p = in;
-	while (1) {
-		p += strcspn(p, "\"\\");
-
-		if (p[0] == '\0')
-			break;
-
-		len++;
-		p++;
-	}
-
-	out = xmalloc(len);
-	out[0] = '\0';
-
-	strcat(out, "\"");
-
-	p = in;
-	while (1) {
-		len = strcspn(p, "\"\\");
-		strncat(out, p, len);
-		p += len;
-
-		if (p[0] == '\0')
-			break;
-
-		strcat(out, "\\");
-		strncat(out, p++, 1);
-	}
-
-	strcat(out, "\"");
-
-	return out;
-}
-
-enum output_n { OUTPUT_N, OUTPUT_N_AS_UNSET, OUTPUT_N_NONE };
-
-static void __print_symbol(FILE *fp, struct symbol *sym, enum output_n output_n,
-			   bool escape_string)
-{
-	const char *val;
-	char *escaped = NULL;
-
-	if (sym->type == S_UNKNOWN)
-		return;
-
-	val = sym_get_string_value(sym);
-
-	if ((sym->type == S_BOOLEAN || sym->type == S_TRISTATE) &&
-	    output_n != OUTPUT_N && *val == 'n') {
-		if (output_n == OUTPUT_N_AS_UNSET)
-			fprintf(fp, "# %s%s is not set\n", CONFIG_, sym->name);
-		return;
-	}
-
-	if (sym->type == S_STRING && escape_string) {
-		escaped = escape_string_value(val);
-		val = escaped;
-	}
-
-	fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, val);
-
-	free(escaped);
-}
-
-static void print_symbol_for_dotconfig(FILE *fp, struct symbol *sym)
-{
-	__print_symbol(fp, sym, OUTPUT_N_AS_UNSET, true);
-}
-
-static void print_symbol_for_autoconf(FILE *fp, struct symbol *sym)
-{
-	__print_symbol(fp, sym, OUTPUT_N_NONE, false);
-}
-
-void print_symbol_for_listconfig(struct symbol *sym)
-{
-	__print_symbol(stdout, sym, OUTPUT_N, true);
-}
-
-static void print_symbol_for_c(FILE *fp, struct symbol *sym)
-{
-	const char *val;
-	const char *sym_suffix = "";
-	const char *val_prefix = "";
-	char *escaped = NULL;
-
-	if (sym->type == S_UNKNOWN)
-		return;
-
-	val = sym_get_string_value(sym);
-
-	switch (sym->type) {
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		switch (*val) {
-		case 'n':
-			return;
-		case 'm':
-			sym_suffix = "_MODULE";
-			/* fall through */
-		default:
-			val = "1";
-		}
-		break;
-	case S_HEX:
-		if (val[0] != '0' || (val[1] != 'x' && val[1] != 'X'))
-			val_prefix = "0x";
-		break;
-	case S_STRING:
-		escaped = escape_string_value(val);
-		val = escaped;
-	default:
-		break;
-	}
-
-	fprintf(fp, "#define %s%s%s %s%s\n", CONFIG_, sym->name, sym_suffix,
-		val_prefix, val);
-
-	free(escaped);
-}
-
-static void print_symbol_for_rustccfg(FILE *fp, struct symbol *sym)
-{
-	const char *val;
-	const char *val_prefix = "";
-	char *val_prefixed = NULL;
-	size_t val_prefixed_len;
-	char *escaped = NULL;
-
-	if (sym->type == S_UNKNOWN)
-		return;
-
-	val = sym_get_string_value(sym);
-
-	switch (sym->type) {
-	case S_BOOLEAN:
-	case S_TRISTATE:
-		/*
-		 * We do not care about disabled ones, i.e. no need for
-		 * what otherwise are "comments" in other printers.
-		 */
-		if (*val == 'n')
-			return;
-
-		/*
-		 * To have similar functionality to the C macro `IS_ENABLED()`
-		 * we provide an empty `--cfg CONFIG_X` here in both `y`
-		 * and `m` cases.
-		 *
-		 * Then, the common `fprintf()` below will also give us
-		 * a `--cfg CONFIG_X="y"` or `--cfg CONFIG_X="m"`, which can
-		 * be used as the equivalent of `IS_BUILTIN()`/`IS_MODULE()`.
-		 */
-		fprintf(fp, "--cfg=%s%s\n", CONFIG_, sym->name);
-		break;
-	case S_HEX:
-		if (val[0] != '0' || (val[1] != 'x' && val[1] != 'X'))
-			val_prefix = "0x";
-		break;
-	default:
-		break;
-	}
-
-	if (strlen(val_prefix) > 0) {
-		val_prefixed_len = strlen(val) + strlen(val_prefix) + 1;
-		val_prefixed = xmalloc(val_prefixed_len);
-		snprintf(val_prefixed, val_prefixed_len, "%s%s", val_prefix, val);
-		val = val_prefixed;
-	}
-
-	/* All values get escaped: the `--cfg` option only takes strings */
-	escaped = escape_string_value(val);
-	val = escaped;
-
-	fprintf(fp, "--cfg=%s%s=%s\n", CONFIG_, sym->name, val);
-
-	free(escaped);
-	free(val_prefixed);
-}
-
-/*
- * 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_changeable(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;
-				}
-			}
-			print_symbol_for_dotconfig(out, sym);
-		}
-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 *str;
-	char tmpname[PATH_MAX + 1], oldname[PATH_MAX + 1];
-	char *env;
-	int i;
-	bool need_newline = false;
-
-	if (!name)
-		name = conf_get_configname();
-
-	if (!*name) {
-		fprintf(stderr, "config name is empty\n");
-		return -1;
-	}
-
-	if (is_dir(name)) {
-		fprintf(stderr, "%s: Is a directory\n", name);
-		return -1;
-	}
-
-	if (make_parent_dir(name))
-		return -1;
-
-	env = getenv("KCONFIG_OVERWRITECONFIG");
-	if (env && *env) {
-		*tmpname = 0;
-		out = fopen(name, "w");
-	} else {
-		snprintf(tmpname, sizeof(tmpname), "%s.%d.tmp",
-			 name, (int)getpid());
-		out = fopen(tmpname, "w");
-	}
-	if (!out)
-		return 1;
-
-	conf_write_heading(out, &comment_style_pound);
-
-	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);
-			need_newline = false;
-		} else if (!(sym->flags & SYMBOL_CHOICE) &&
-			   !(sym->flags & SYMBOL_WRITTEN)) {
-			sym_calc_value(sym);
-			if (!(sym->flags & SYMBOL_WRITE))
-				goto next;
-			if (need_newline) {
-				fprintf(out, "\n");
-				need_newline = false;
-			}
-			sym->flags |= SYMBOL_WRITTEN;
-			print_symbol_for_dotconfig(out, sym);
-		}
-
-next:
-		if (menu->list) {
-			menu = menu->list;
-			continue;
-		}
-
-end_check:
-		if (!menu->sym && menu_is_visible(menu) && menu != &rootmenu &&
-		    menu->prompt->type == P_MENU) {
-			fprintf(out, "# end of %s\n", menu_get_prompt(menu));
-			need_newline = true;
-		}
-
-		if (menu->next) {
-			menu = menu->next;
-		} else {
-			menu = menu->parent;
-			if (menu)
-				goto end_check;
-		}
-	}
-	fclose(out);
-
-	for_all_symbols(i, sym)
-		sym->flags &= ~SYMBOL_WRITTEN;
-
-	if (*tmpname) {
-		if (is_same(name, tmpname)) {
-			conf_message("No change to %s", name);
-			unlink(tmpname);
-			conf_set_changed(false);
-			return 0;
-		}
-
-		snprintf(oldname, sizeof(oldname), "%s.old", name);
-		rename(name, oldname);
-		if (rename(tmpname, name))
-			return 1;
-	}
-
-	conf_message("configuration written to %s", name);
-
-	conf_set_changed(false);
-
-	return 0;
-}
-
-/* write a dependency file as used by kbuild to track dependencies */
-static int conf_write_autoconf_cmd(const char *autoconf_name)
-{
-	char name[PATH_MAX], tmp[PATH_MAX];
-	struct file *file;
-	FILE *out;
-	int ret;
-
-	ret = snprintf(name, sizeof(name), "%s.cmd", autoconf_name);
-	if (ret >= sizeof(name)) /* check truncation */
-		return -1;
-
-	if (make_parent_dir(name))
-		return -1;
-
-	ret = snprintf(tmp, sizeof(tmp), "%s.cmd.tmp", autoconf_name);
-	if (ret >= sizeof(tmp)) /* check truncation */
-		return -1;
-
-	out = fopen(tmp, "w");
-	if (!out) {
-		perror("fopen");
-		return -1;
-	}
-
-	fprintf(out, "deps_config := \\\n");
-	for (file = file_list; file; file = file->next)
-		fprintf(out, "\t%s \\\n", file->name);
-
-	fprintf(out, "\n%s: $(deps_config)\n\n", autoconf_name);
-
-	env_write_dep(out, autoconf_name);
-
-	fprintf(out, "\n$(deps_config): ;\n");
-
-	fflush(out);
-	ret = ferror(out); /* error check for all fprintf() calls */
-	fclose(out);
-	if (ret)
-		return -1;
-
-	if (rename(tmp, name)) {
-		perror("rename");
-		return -1;
-	}
-
-	return 0;
-}
-
-static int conf_touch_deps(void)
-{
-	const char *name, *tmp;
-	struct symbol *sym;
-	int res, i;
-
-	name = conf_get_autoconfig_name();
-	tmp = strrchr(name, '/');
-	depfile_prefix_len = tmp ? tmp - name + 1 : 0;
-	if (depfile_prefix_len + 1 > sizeof(depfile_path))
-		return -1;
-
-	strncpy(depfile_path, name, depfile_prefix_len);
-	depfile_path[depfile_prefix_len] = 0;
-
-	conf_read_simple(name, S_DEF_AUTO);
-	sym_calc_value(modules_sym);
-
-	for_all_symbols(i, sym) {
-		sym_calc_value(sym);
-		if ((sym->flags & SYMBOL_NO_WRITE) || !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').
-		 */
-
-		res = conf_touch_dep(sym->name);
-		if (res)
-			return res;
-	}
-
-	return 0;
-}
-
-static int __conf_write_autoconf(const char *filename,
-				 void (*print_symbol)(FILE *, struct symbol *),
-				 const struct comment_style *comment_style)
-{
-	char tmp[PATH_MAX];
-	FILE *file;
-	struct symbol *sym;
-	int ret, i;
-
-	if (make_parent_dir(filename))
-		return -1;
-
-	ret = snprintf(tmp, sizeof(tmp), "%s.tmp", filename);
-	if (ret >= sizeof(tmp)) /* check truncation */
-		return -1;
-
-	file = fopen(tmp, "w");
-	if (!file) {
-		perror("fopen");
-		return -1;
-	}
-
-	conf_write_heading(file, comment_style);
-
-	for_all_symbols(i, sym)
-		if ((sym->flags & SYMBOL_WRITE) && sym->name)
-			print_symbol(file, sym);
-
-	fflush(file);
-	/* check possible errors in conf_write_heading() and print_symbol() */
-	ret = ferror(file);
-	fclose(file);
-	if (ret)
-		return -1;
-
-	if (rename(tmp, filename)) {
-		perror("rename");
-		return -1;
-	}
-
-	return 0;
-}
-
-int conf_write_autoconf(int overwrite)
-{
-	struct symbol *sym;
-	const char *autoconf_name = conf_get_autoconfig_name();
-	int ret, i;
-
-	if (!overwrite && is_present(autoconf_name))
-		return 0;
-
-	ret = conf_write_autoconf_cmd(autoconf_name);
-	if (ret)
-		return -1;
-
-	if (conf_touch_deps())
-		return 1;
-
-	for_all_symbols(i, sym)
-		sym_calc_value(sym);
-
-	ret = __conf_write_autoconf(conf_get_autoheader_name(),
-				    print_symbol_for_c,
-				    &comment_style_c);
-	if (ret)
-		return ret;
-
-	ret = __conf_write_autoconf(conf_get_rustccfg_name(),
-				    print_symbol_for_rustccfg,
-				    NULL);
-	if (ret)
-		return ret;
-
-	/*
-	 * Create include/config/auto.conf. This must be the last step because
-	 * Kbuild has a dependency on auto.conf and this marks the successful
-	 * completion of the previous steps.
-	 */
-	ret = __conf_write_autoconf(conf_get_autoconfig_name(),
-				    print_symbol_for_autoconf,
-				    &comment_style_pound);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-static bool conf_changed;
-static void (*conf_changed_callback)(void);
-
-void conf_set_changed(bool val)
-{
-	if (conf_changed_callback && conf_changed != val)
-		conf_changed_callback();
-
-	conf_changed = val;
-}
-
-bool conf_get_changed(void)
-{
-	return conf_changed;
-}
-
-void conf_set_changed_callback(void (*fn)(void))
-{
-	conf_changed_callback = fn;
-}
-
-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);
-}