obj-y := initramfs_data.o hostprogs-y  := gen_init_cpio clean-files := initramfs_data.cpio.gz initramfs_list # initramfs_data.o contains the initramfs_data.cpio.gz image.# The image is included using .incbin, a dependency which is not# tracked automatically.$(obj)/initramfs_data.o: $(obj)/initramfs_data.cpio.gz FORCE ifdef CONFIG_INITRAMFS_ROOT_UIDgen_initramfs_args += -u $(CONFIG_INITRAMFS_ROOT_UID)endif ifdef CONFIG_INITRAMFS_ROOT_GIDgen_initramfs_args += -g $(CONFIG_INITRAMFS_ROOT_GID)endif # The $(shell echo $(CONFIG_INITRAMFS_SOURCE)) is to remove the# gratuitous begin and end quotes from the Kconfig string type.# Internal, escaped quotes in the Kconfig string will loose the# escape and become active quotes.quotefixed_initramfs_source := $(shell echo $(CONFIG_INITRAMFS_SOURCE)) filechk_initramfs_list = $(CONFIG_SHELL) \ $(srctree)/scripts/gen_initramfs_list.sh $(gen_initramfs_args) $(quotefixed_initramfs_source) $(obj)/initramfs_list: FORCE	$(call filechk,initramfs_list) quiet_cmd_cpio = CPIO    $@      cmd_cpio = ./$< $(obj)/initramfs_list > $@  # Check if the INITRAMFS_SOURCE is a cpio archiveifneq (,$(findstring .cpio,$(quotefixed_initramfs_source))) # INITRAMFS_SOURCE has a cpio archive - verify that it's a single fileifneq (1,$(words $(quotefixed_initramfs_source)))$(error Only a single file may be specified in CONFIG_INITRAMFS_SOURCE (="$(quotefixed_initramfs_source)") when a cpio archive is directly specified.)endif# Now use the cpio archive directlyinitramfs_data_cpio = $(quotefixed_initramfs_source)targets += $(quotefixed_initramfs_source) else # INITRAMFS_SOURCE is not a cpio archive - create one$(obj)/initramfs_data.cpio: $(obj)/gen_init_cpio \                            $(initramfs-y) $(obj)/initramfs_list FORCE	$(call if_changed,cpio) targets += initramfs_data.cpioinitramfs_data_cpio = $(obj)/initramfs_data.cpio endif  $(obj)/initramfs_data.cpio.gz: $(initramfs_data_cpio) FORCE	$(call if_changed,gzip) targets += initramfs_data.cpio.gz