summaryrefslogtreecommitdiff
path: root/scripts/Makefile.defconf
diff options
context:
space:
mode:
authorNicolas Saenz Julienne <nsaenzjulienne@suse.de>2023-01-24 14:02:12 +0300
committerArnd Bergmann <arnd@arndb.de>2023-01-25 00:11:41 +0300
commita400c287ce985992c78941a130869cb5b68e2c2f (patch)
tree5b77368f77d15238743d8c2decf6a9e996f54888 /scripts/Makefile.defconf
parentaf8bd008315aba621519bb35297fbe3e293fffa1 (diff)
downloadlinux-a400c287ce985992c78941a130869cb5b68e2c2f.tar.xz
kbuild: Add config fragment merge functionality
So far this function was only used locally in powerpc, some other architectures might benefit from it. Move it into scripts/Makefile.defconf. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230124110213.3221264-10-alexander.stein@ew.tq-group.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'scripts/Makefile.defconf')
-rw-r--r--scripts/Makefile.defconf15
1 files changed, 15 insertions, 0 deletions
diff --git a/scripts/Makefile.defconf b/scripts/Makefile.defconf
new file mode 100644
index 000000000000..ab332f7534f5
--- /dev/null
+++ b/scripts/Makefile.defconf
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+# Configuration heplers
+
+# Creates 'merged defconfigs'
+# ---------------------------------------------------------------------------
+# Usage:
+# $(call merge_into_defconfig,base_config,config_fragment1 config_fragment2 ...)
+#
+# Input config fragments without '.config' suffix
+define merge_into_defconfig
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
+ -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/$(1) \
+ $(foreach config,$(2),$(srctree)/arch/$(ARCH)/configs/$(config).config)
+ +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
+endef