[PATCH] Add ``cloneconfig'' target

[Jeff Mahoney]

Cloneconfig takes the first configuration it finds which appears
to belong to the running kernel, and configures the kernel sources
to match this configuration as closely as possible.

Signed-off-by: Andreas Gruenbacher <agruen@xxxxxxx>
Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx>
---
 scripts/kconfig/Makefile |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -99,6 +99,23 @@ PHONY += allnoconfig allyesconfig allmod
 
 allnoconfig allyesconfig allmodconfig alldefconfig randconfig: $(obj)/conf
 	$< --$@ $(Kconfig)
+ 
+UNAME_RELEASE := $(shell uname -r)
+CLONECONFIG := $(firstword $(wildcard /proc/config.gz \
+				      /lib/modules/$(UNAME_RELEASE)/.config \
+				      /etc/kernel-config \
+				      /boot/config-$(UNAME_RELEASE)))
+cloneconfig: $(obj)/conf
+	$(Q)case "$(CLONECONFIG)" in				\
+	'')	echo -e "The configuration of the running"	\
+			"kernel could not be determined\n";	\
+		false ;;					\
+	*.gz)	gzip -cd $(CLONECONFIG) > .config.running ;;	\
+	*)	cat $(CLONECONFIG) > .config.running ;;		\
+	esac &&							\
+	echo -e "Cloning configuration file $(CLONECONFIG)\n"
+	$(Q)$< -D .config.running arch/$(SRCARCH)/Kconfig
+
 
 PHONY += listnewconfig oldnoconfig savedefconfig defconfig
 
-- 
Jeff Mahoney
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/