openwrt/target/linux/ath79/image/Makefile

include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk

KERNEL_LOADADDR = 0x80060000

DEVICE_VARS += LOADER_FLASH_OFFS LOADER_TYPE

define Build/loader-common
	rm -rf $@.src
	$(MAKE) -C lzma-loader \
		PKG_BUILD_DIR="$@.src" \
		TARGET_DIR="$(dir $@)" LOADER_NAME="$(notdir $@)" \
		$(1) compile loader.$(LOADER_TYPE)
	mv "$@.$(LOADER_TYPE)" "$@"
	rm -rf $@.src
endef

define Build/loader-kernel
	$(call Build/loader-common,LOADER_DATA="$@")
endef

define Build/loader-kernel-cmdline
	$(call Build/loader-common,LOADER_DATA="$@")
endef


define Build/loader-okli-compile
	$(call Build/loader-common,FLASH_OFFS=$(LOADER_FLASH_OFFS) FLASH_MAX=0)
endef

# Arguments: <output name> <kernel offset>
define Build/loader-okli
	dd if=$(KDIR)/loader-$(word 1,$(1)).$(LOADER_TYPE) bs=$(word 2,$(1)) conv=sync of="$@.new"
	cat "$@" >> "$@.new"
	mv "$@.new" "$@"
endef

define Build/append-loader-okli
	cat "$(KDIR)/loader-$(word 1,$(1)).$(LOADER_TYPE)" >> "$@"
endef

define Build/relocate-kernel
	rm -rf $@.relocate
	$(CP) ../../generic/image/relocate $@.relocate
	$(MAKE) -j1 -C $@.relocate KERNEL_ADDR=$(KERNEL_LOADADDR) CROSS_COMPILE=$(TARGET_CROSS)
	( \
		dd if=$@.relocate/loader.bin bs=32 conv=sync && \
		perl -e '@s = stat("$@"); print pack("N", @s[7])' && \
		cat "$@" \
	) > "$@.new"
	mv "$@.new" "$@"
	rm -rf $@.relocate
endef


define Device/Default
  DEVICE_DTS_DIR := ../dts
  DEVICE_DTS = $$(SOC)_$(1)
  PROFILES = Default
  MTDPARTS :=
  BLOCKSIZE := 64k
  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma
  KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | uImage lzma
  COMPILE :=
  SUPPORTED_DEVICES := $(subst _,$(comma),$(1))
  IMAGES := sysupgrade.bin
  IMAGE/sysupgrade.bin = append-kernel | pad-to $$$$(BLOCKSIZE) | \
	append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
endef

ifeq ($(SUBTARGET),generic)
include ./generic.mk
include ./generic-tp-link.mk
include ./generic-ubnt.mk
endif
ifeq ($(SUBTARGET),mikrotik)
include ./mikrotik.mk
endif
ifeq ($(SUBTARGET),nand)
include ./nand.mk
endif
ifeq ($(SUBTARGET),tiny)
include ./tiny.mk
include ./tiny-netgear.mk
include ./tiny-tp-link.mk
endif
$(eval $(call BuildImage))