[v2,3/7] selftests/nolibc: add extra configs customize support
Commit Message
The default DEFCONFIG_<ARCH> may not always work for all architectures,
some architectures require to add extra kernel config options, this
allows to add extra options in the defconfig target.
It allows to customize extra kernel config options via the common
common.config and the architecture specific <ARCH>.config, at last
trigger 'allnoconfig' to let them take effect with missing config
options as disabled.
The scripts/kconfig/merge_config.sh tool is used to merge the extra
config files.
Suggested-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/lkml/67eb70d4-c9ff-4afc-bac7-7f36cc2c81bc@t-8ch.de/
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/testing/selftests/nolibc/Makefile | 5 +++++
1 file changed, 5 insertions(+)
@@ -39,6 +39,9 @@ DEFCONFIG_s390 = defconfig
DEFCONFIG_loongarch = defconfig
DEFCONFIG = $(DEFCONFIG_$(ARCH))
+# extra kernel config files under configs/, include common + architecture specific
+EXTCONFIG = common.config $(ARCH).config
+
# optional tests to run (default = all)
TEST =
@@ -161,6 +164,8 @@ initramfs: nolibc-test
defconfig:
$(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) mrproper $(DEFCONFIG) prepare
+ $(Q)$(srctree)/scripts/kconfig/merge_config.sh -O "$(srctree)" -m "$(srctree)/.config" $(foreach c,$(EXTCONFIG),$(wildcard $(CURDIR)/configs/$c))
+ $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) KCONFIG_ALLCONFIG="$(srctree)/.config" allnoconfig
kernel: initramfs
$(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs