kconfig: fix failing to generate auto.conf

[ Upstream commit 1b9e740a81f91ae338b29ed70455719804957b80 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jing Leng 2022-02-11 17:27:36 +08:00 committed by Greg Kroah-Hartman
parent b6787e284d
commit 3680b2b810

View File

@ -968,14 +968,19 @@ static int conf_write_dep(const char *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);