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authorJing Leng <jleng@ambarella.com>2022-02-11 12:27:36 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2022-02-12 17:24:19 +0300
commit1b9e740a81f91ae338b29ed70455719804957b80 (patch)
treeedafdf4a7fbb6c38e93e8df90fc8f2343856dbbd
parentd23a0c3718222a42430fd56359478a6fc7675070 (diff)
downloadlinux-1b9e740a81f91ae338b29ed70455719804957b80.tar.xz
kconfig: fix failing to generate auto.conf
When the KCONFIG_AUTOCONFIG is specified (e.g. export \ KCONFIG_AUTOCONFIG=output/config/auto.conf), the directory of include/config/ will not be created, so kconfig can't create deps files in it and auto.conf can't be generated. Signed-off-by: Jing Leng <jleng@ambarella.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
-rw-r--r--scripts/kconfig/confdata.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 16897cb8cefd..d3c3a61308ad 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -994,14 +994,19 @@ static int conf_write_autoconf_cmd(const char *autoconf_name)
static int conf_touch_deps(void)
{
- const char *name;
+ const char *name, *tmp;
struct symbol *sym;
int res, i;
- strcpy(depfile_path, "include/config/");
- depfile_prefix_len = strlen(depfile_path);
-
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);