From: Jing Leng jleng@ambarella.com
[ 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 --- scripts/kconfig/confdata.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index cf72680cd7692..4a828bca071e8 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -983,14 +983,19 @@ 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);