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1f6ec4b29e
...and max flash offset
The mtdsplit parser was recently refactored
to allow the kernel to have custom image header magic.
Let's also do this for the lzma-loader
For example:
When implemented together,
this allows the kernel to "appear" to be a rootfs
by OEM software in order to write an image
that is actually kernel + rootfs.
At the same time,
it would boot to openwrt normally
by setting the same magic in DTS.
Both of the variables
have a default value that is unchanged
when not defined in the makefiles
This has no effect on the size of the loader
when lzma compressed.
Signed-off-by: Michael Pratt <mcpratt@pm.me>
(cherry picked from commit 1b8bd17c2d)
92 lines
2.2 KiB
Makefile
92 lines
2.2 KiB
Makefile
include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/image.mk
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KERNEL_LOADADDR = 0x80060000
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DEVICE_VARS += LOADER_FLASH_OFFS LOADER_TYPE
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DEVICE_VARS += LOADER_FLASH_MAX LOADER_KERNEL_MAGIC
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DEVICE_VARS += NETGEAR_BOARD_ID NETGEAR_HW_ID
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DEVICE_VARS += RAS_BOARD RAS_ROOTFS_SIZE RAS_VERSION
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define Build/combined-image
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sh $(TOPDIR)/scripts/combined-image.sh \
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"$(IMAGE_KERNEL)" \
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"$@" \
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"$@.new"
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@mv $@.new $@
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endef
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define Build/loader-common
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rm -rf $@.src
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$(MAKE) -C lzma-loader \
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PKG_BUILD_DIR="$@.src" \
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TARGET_DIR="$(dir $@)" LOADER_NAME="$(notdir $@)" \
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$(1) compile loader.$(LOADER_TYPE)
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mv "$@.$(LOADER_TYPE)" "$@"
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rm -rf $@.src
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endef
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define Build/loader-kernel
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$(call Build/loader-common,LOADER_DATA="$@")
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endef
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define Build/loader-okli-compile
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$(call Build/loader-common, \
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FLASH_OFFS=$(LOADER_FLASH_OFFS) \
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FLASH_MAX=$(LOADER_FLASH_MAX) \
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KERNEL_MAGIC=$(LOADER_KERNEL_MAGIC) )
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endef
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# Arguments: <output name> <kernel offset>
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define Build/loader-okli
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dd if=$(KDIR)/loader-$(word 1,$(1)).$(LOADER_TYPE) bs=$(word 2,$(1)) conv=sync of="$@.new"
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cat "$@" >> "$@.new"
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mv "$@.new" "$@"
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endef
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define Build/append-loader-okli
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cat "$(KDIR)/loader-$(word 1,$(1)).$(LOADER_TYPE)" >> "$@"
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endef
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define Build/relocate-kernel
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rm -rf $@.relocate
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$(CP) ../../generic/image/relocate $@.relocate
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$(MAKE) -j1 -C $@.relocate KERNEL_ADDR=$(KERNEL_LOADADDR) CROSS_COMPILE=$(TARGET_CROSS)
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( \
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dd if=$@.relocate/loader.bin bs=32 conv=sync && \
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perl -e '@s = stat("$@"); print pack("N", @s[7])' && \
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cat "$@" \
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) > "$@.new"
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mv "$@.new" "$@"
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rm -rf $@.relocate
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endef
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define Device/Default
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DEVICE_DTS_DIR := ../dts
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DEVICE_DTS = $$(SOC)_$(1)
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PROFILES = Default
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MTDPARTS :=
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BLOCKSIZE := 64k
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KERNEL := kernel-bin | append-dtb | lzma | uImage lzma
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KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | uImage lzma
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COMPILE :=
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IMAGES := sysupgrade.bin
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IMAGE/sysupgrade.bin = append-kernel | pad-to $$$$(BLOCKSIZE) | \
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append-rootfs | pad-rootfs | append-metadata | check-size
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endef
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include $(SUBTARGET).mk
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ifeq ($(SUBTARGET),generic)
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include generic-tp-link.mk
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include generic-ubnt.mk
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endif
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ifeq ($(SUBTARGET),tiny)
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include tiny-netgear.mk
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include tiny-tp-link.mk
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endif
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$(eval $(call BuildImage))
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