+define Build/netgear-chk
+ $(STAGING_DIR_HOST)/bin/mkchkimg \
+ -o $@.new \
+ -k $@ \
+ -b $(NETGEAR_BOARD_ID) \
+ -r $(NETGEAR_REGION)
+ mv $@.new $@
+endef
+
+define Build/netgear-dni
+ $(STAGING_DIR_HOST)/bin/mkdniimg \
+ -B $(NETGEAR_BOARD_ID) -v OpenWrt.$(REVISION) \
+ $(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
+ -r "$(1)" \
+ -i $@ -o $@.new
+ mv $@.new $@
+endef
+
+define Build/fit
+ $(TOPDIR)/scripts/mkits.sh \
+ -D $(DEVICE_NAME) -o $@.its -k $@ \
+ $(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
+ -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
+ -A $(ARCH) -v $(LINUX_VERSION)
+ PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
+ @mv $@.new $@
+endef
+
+define Build/lzma
+ $(STAGING_DIR_HOST)/bin/lzma e $@ -lc1 -lp2 -pb2 $(1) $@.new
+ @mv $@.new $@
+endef
+
+define Build/gzip
+ gzip -9n -c $@ $(1) > $@.new
+ @mv $@.new $@
+endef
+
+define Build/jffs2
+ rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
+ mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
+ cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
+ $(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
+ $(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
+ --squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
+ -o $@.new \
+ -d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
+ 2>&1 1>/dev/null | awk '/^.+$$$$/' && \
+ $(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
+ -rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
+ @mv $@.new $@
+endef
+
+define Build/kernel-bin
+ rm -f $@
+ cp $< $@
+endef
+
+define Build/patch-cmdline
+ $(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
+endef
+
+define Build/append-kernel
+ dd if=$(word 1,$^) $(if $(1),bs=$(1) conv=sync) >> $@
+endef
+
+define Build/append-rootfs
+ dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
+endef
+
+define Build/append-ubi
+ sh $(TOPDIR)/scripts/ubinize-image.sh \
+ $(if $(UBOOTENV_IN_UBI),--uboot-env) \
+ $(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
+ $(word 2,$^) \
+ $@.tmp \
+ -p $(BLOCKSIZE) -m $(PAGESIZE) -E 5 \
+ $(if $(SUBPAGESIZE),-s $(SUBPAGESIZE))
+ cat $@.tmp >> $@
+ rm $@.tmp
+endef
+
+define Build/pad-to
+ dd if=$@ of=$@.new bs=$(1) conv=sync
+ mv $@.new $@
+endef
+
+define Build/pad-rootfs
+ $(call prepare_generic_squashfs,$@ $(1))
+endef
+
+define Build/pad-offset
+ let \
+ size="$$(stat -c%s $@)" \
+ pad="$(word 1, $(1))" \
+ offset="$(word 2, $(1))" \
+ pad="(pad - ((size + offset) % pad)) % pad" \
+ newsize='size + pad'; \
+ dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
+ mv $@.new $@
+endef
+
+define Build/check-size
+ @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
+ echo "WARNING: Image file $@ is too big" >&2; \
+ rm -f $@; \
+ }
+endef
+
+define Build/combined-image
+ -sh $(TOPDIR)/scripts/combined-image.sh \
+ "$(word 1,$^)" \
+ "$@" \
+ "$@.new"
+ @mv $@.new $@
+endef
+
+define Build/sysupgrade-nand
+ sh $(TOPDIR)/scripts/sysupgrade-nand.sh \
+ --board $(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)) \
+ --kernel $(word 1,$^) \
+ --rootfs $(word 2,$^) \
+ $@
+endef
+
+define Device/Init
+ PROFILES := $(PROFILE)
+ DEVICE_NAME := $(1)
+ KERNEL:=
+ KERNEL_INITRAMFS = $$(KERNEL)
+ KERNEL_SIZE:=
+ CMDLINE:=
+
+ IMAGE_PREFIX := $(IMG_PREFIX)-$(1)
+ IMAGE_NAME = $$(IMAGE_PREFIX)-$$(1)-$$(2)
+ KERNEL_PREFIX = $(1)
+ KERNEL_SUFFIX := -kernel.bin
+ KERNEL_IMAGE = $$(KERNEL_PREFIX)$$(KERNEL_SUFFIX)
+ KERNEL_INITRAMFS_PREFIX = $$(IMAGE_PREFIX)-initramfs
+ KERNEL_INITRAMFS_IMAGE = $$(KERNEL_INITRAMFS_PREFIX)$$(KERNEL_SUFFIX)
+ KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs
+ KERNEL_INSTALL :=
+ KERNEL_NAME := vmlinux
+ KERNEL_DEPENDS :=
+ KERNEL_SIZE :=
+
+ FILESYSTEMS := $(TARGET_FILESYSTEMS)
+endef
+
+define Device/ExportVar
+ $(1) : $(2):=$$($(2))
+
+endef
+define Device/Export
+ $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS KERNEL_INITRAMFS_IMAGE,$(call Device/ExportVar,$(1),$(var)))
+ $(1) : FILESYSTEM:=$(2)
+endef
+
+define Device/Check
+ _TARGET = $$(if $$(filter $(PROFILE),$$(PROFILES)),install,install-disabled)
+ _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES))),compile,compile-disabled)
+endef
+
+ifndef IB
+define Device/Build/initramfs
+ $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
+ $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
+
+ $(KDIR)/$$(KERNEL_INITRAMFS_NAME):: image_prepare
+ $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
+ cp $$^ $$@
+
+ $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
+ @rm -f $$@
+ $$(call concat_cmd,$$(KERNEL_INITRAMFS))
+endef