drc-fw-patches/Makefile

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Makefile
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DRC_FW_FILE := drc_fw.bin
LVC_SHA256 := "d83be494af0bb35cc4bd3340a3da3adb0823bcf111d6e2fd72092a0532d8df32 unpacked/LVC_.bin"
.PHONY: unpack patch pack clean
all: pack
@echo "All done!"
unpack:
@echo "Unpacking firmware..."
@python3 fwpack.py unpack $(DRC_FW_FILE) unpacked
@echo "Checking LVC_.bin..."
@echo $(LVC_SHA256) | sha256sum -c -
patch: unpack
@echo "Patching LVC_.bin"
@armips LVC_.s
@echo "Patching versions..."
# patch version to 254.0.0 (blob_header.bin is big endian, VER_.bin is little endian)
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@env printf '\xfe\x00\x00\x00' | dd of=unpacked/blob_header.bin bs=1 seek=0 count=4 conv=notrunc
@env printf '\x00\x00\x00\xfe' | dd of=unpacked/VER_.bin bs=1 seek=0 count=4 conv=notrunc
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pack: patch
@echo "Packing firmware..."
@python3 fwpack.py pack unpacked patched_$(DRC_FW_FILE)
clean:
@echo "Clean..."
@rm -rf unpacked patched_$(DRC_FW_FILE)