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linux: add linux-update-config and linux-update-defconfig targets

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In analogy to build targets uclibc-update and busybox-update, add
extra targets to copy the current configuration to the custom
configuration file set in buildroot. These targets facilitate the
work of developers adding support for a specific board.

linux-update-config copies .config directly.
linux-update-defconfig first creates a defconfig and copies that.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Thomas De Schampheleire 2011-10-14 16:56:56 +02:00 committed by Peter Korsgaard
parent 7062aff3d1
commit 0900c12556
1 changed files with 11 additions and 0 deletions
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11
linux/linux.mk
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@ -196,6 +196,17 @@ linux-savedefconfig linux26-savedefconfig: dirs $(LINUX_DIR)/.stamp_configured
$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) \
$(subst linux-,,$(subst linux26-,,$@))
ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
linux-update-config linux26-update-config: $(LINUX_DIR)/.config
cp -f $(LINUX_DIR)/.config $(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)
linux-update-defconfig linux26-update-defconfig: linux-savedefconfig
cp -f $(LINUX_DIR)/defconfig $(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)
else
linux-update-config linux26-update-config: ;
linux-update-defconfig linux26-update-defconfig: ;
endif
# Support for rebuilding the kernel after the cpio archive has
# been generated in $(BINARIES_DIR)/rootfs.cpio.
$(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LINUX_DIR)/.stamp_images_installed $(BINARIES_DIR)/rootfs.cpio