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| author | Masahiro Yamada <masahiroy@kernel.org> | 2021-04-10 17:31:58 +0300 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2021-04-14 09:22:49 +0300 |
| commit | f02aa48dde8b96eef5998b049ad11547bfc16080 (patch) | |
| tree | 5baa115d29cee0277dfe5953e8758c0653d4d7fa | |
| parent | 5ee546594025fc9337e4cc8b79db89f1258cf480 (diff) | |
| download | linux-f02aa48dde8b96eef5998b049ad11547bfc16080.tar.xz | |
kconfig: use /boot/config-* etc. as DEFCONFIG_LIST only for native build
When the .config file is missing, 'make config', 'make menuconfig', etc.
uses a file listed in DEFCONFIG_LIST, if found, as base configuration.
Ususally, /boot/config-$(uname -r) exists, and is used as default.
However, when you are cross-compiling the kernel, it does not make
sense to use /boot/config-* on the build host. It should default to
arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG).
UML previously did not use DEFCONFIG_LIST at all, but it should be
able to use arch/um/configs/$(KBUILD_DEFCONFIG) as a base config file.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
| -rw-r--r-- | Makefile | 5 | ||||
| -rw-r--r-- | scripts/kconfig/Makefile | 8 |
2 files changed, 9 insertions, 4 deletions
@@ -393,6 +393,11 @@ ifeq ($(ARCH),sh64) SRCARCH := sh endif +export cross_compiling := +ifneq ($(SRCARCH),$(SUBARCH)) +cross_compiling := 1 +endif + KCONFIG_CONFIG ?= .config export KCONFIG_CONFIG diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index 46f2465177f0..1d1a7f83ee8d 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -18,14 +18,14 @@ silent := -s endif export KCONFIG_DEFCONFIG_LIST := -ifneq ($(SRCARCH),um) +ifndef cross_compiling kernel-release := $(shell uname -r) -KCONFIG_DEFCONFIG_LIST := \ +KCONFIG_DEFCONFIG_LIST += \ /lib/modules/$(kernel-release)/.config \ /etc/kernel-config \ - /boot/config-$(kernel-release) \ - arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) + /boot/config-$(kernel-release) endif +KCONFIG_DEFCONFIG_LIST += arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) # We need this, in case the user has it in its environment unexport CONFIG_ |