debian/rules

#!/usr/bin/make -f
# -*- makefile -*-

# Uncomment this to turn on verbose mode.
export DH_VERBOSE = 1

VERSION := 4.4.22-aiy

ARCH := arm64
CROSS_COMPILE := aarch64-linux-gnu-

KERNEL_OPTIONS := \
	ARCH=${ARCH} \
	CROSS_COMPILE=${CROSS_COMPILE} \
	LOCALVERSION=-aiy

LDFLAGS :=
BUILD_DIR := $(CURDIR)/debian/build
DESTDIR := $(CURDIR)/debian/linux-image-$(VERSION)
DESTDIR_HEADERS := $(CURDIR)/debian/linux-headers-$(VERSION)
DESTDIR_KBUILD := $(CURDIR)/debian/linux-kbuild-$(VERSION)

%:
	dh $@

override_dh_auto_clean:
	true

override_dh_auto_build:
	+make $(KERNEL_OPTIONS) mt8167s_excelsior_defconfig
	+make $(KERNEL_OPTIONS) olddefconfig
	+make $(KERNEL_OPTIONS) -j$(shell nproc) Image modules dtbs
	$(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S vmlinux linux.bin

	/boot/compress_lz4.sh linux.bin

	cp /boot/kernel-fit-image.its .
	mtk-mkimage -D "-I dts -O dtb -p 1024" -k /boot/keys -f kernel-fit-image.its boot.img

override_dh_auto_install:
	+make $(KERNEL_OPTIONS) INSTALL_MOD_PATH=$(DESTDIR) modules_install
	rm $(DESTDIR)/lib/modules/$(VERSION)/build
	rm $(DESTDIR)/lib/modules/$(VERSION)/source

	install -d $(DESTDIR)/boot
	install -p -m 655 boot.img $(DESTDIR)/boot

	install -d $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)
	install -d $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)/arch/arm
	install -d $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)/arch/$(ARCH)/kernel

	cp -a .config $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)
	cp -a Module.symvers $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)
	cp -a include $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)
	cp -a arch/$(ARCH)/include $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)/arch/$(ARCH)
	cp -a arch/arm/include $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)/arch/arm
	cp -a Makefile $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)

	( \
		find arch/$(ARCH) -maxdepth 1 -name 'Makefile*' -print; \
		find arch/$(ARCH) \( -name 'module.lds' -o -name 'Kbuild.platforms' -o -name 'Platform' \) -print; \
		find $$(find arch/$(ARCH) \( -name include -o -name scripts \) -type d -print) -print; \
	) | cpio -pdm $(DESTDIR_HEADERS)/usr/src/linux-headers-$(VERSION)

	install -d $(DESTDIR_HEADERS)/lib/modules/$(VERSION)
	ln -s /usr/src/linux-headers-$(VERSION) $(DESTDIR_HEADERS)/lib/modules/$(VERSION)/build