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-rw-r--r--tools/kconfig/confdata.c1263
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);
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-10 01:34:52 +0000