+ifdef CONFIG_TARGET_ROOTFS_TARGZ
+ define Image/Build/targz
+ $(TAR) -cp --numeric-owner --owner=0 --group=0 --sort=name \
+ $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
+ -C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz
+ endef
+endif
+
+ifdef CONFIG_TARGET_ROOTFS_CPIOGZ
+ define Image/Build/cpiogz
+ ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
+ endef
+endif
+