ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/scripts/config/confdata.c b/scripts/config/confdata.c
new file mode 100644
index 0000000..e3f6fdf
--- /dev/null
+++ b/scripts/config/confdata.c
@@ -0,0 +1,1288 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * 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;
+}
+
+void conf_reset(int def)
+{
+ struct symbol *sym;
+ int i, def_flags;
+
+ 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;
+ }
+ }
+}
+
+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 def_flags;
+ const char *warn_unknown;
+ const char *werror;
+
+ warn_unknown = getenv("KCONFIG_WARN_UNKNOWN_SYMBOLS");
+ werror = getenv("KCONFIG_WERROR");
+ 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;
+ conf_reset(def);
+
+ 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) {
+ if (warn_unknown)
+ conf_warning("unknown symbol: %s",
+ line + 2 + strlen(CONFIG_));
+
+ conf_set_changed(true);
+ continue;
+ }
+ } else {
+ sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
+ if (sym->type == S_UNKNOWN)
+ sym->type = S_BOOLEAN;
+ }
+ 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 {
+ if (warn_unknown)
+ conf_warning("unknown symbol: %s",
+ line + strlen(CONFIG_));
+
+ conf_set_changed(true);
+ }
+ continue;
+ }
+
+ 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);
+
+ if (conf_warnings && werror)
+ exit(1);
+
+ 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;
+
+#ifndef OPENWRT_DOES_NOT_WANT_THIS
+ return 0;
+#endif
+ 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)
+{
+ bool changed = conf_changed != val;
+
+ conf_changed = val;
+
+ if (conf_changed_callback && changed)
+ conf_changed_callback();
+}
+
+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);
+}