# Maintainer: BigfootACA <bigfoot@classfun.cn>

pkgbase=linux-sm8550
pkgver=6.7.0.rc3.86bf60e055ae
pkgrel=1
arch=(aarch64)
url="https://github.com/edk2-porting/linux-next/"
license=(GPL2)
makedepends=(
	xmlto
	docbook-xsl
	kmod
	inetutils
	bc
	git
	uboot-tools
	dtc
	aarch64-linux-gnu-gcc
	arm-linux-gnueabihf-gcc
)
options=('!strip')
source=("git+https://gitmirrors.classfun.cn:4443/edk2-porting/linux-next.git"
        defconfig
        linux.preset
        60-linux.hook
        90-linux.hook)
md5sums=('SKIP'
         '06bfb45716bf7f0b0c75219ebb36d44d'
         '86d4a35722b5410e3b29fc92dae15d4b'
         '0a5f16bfec6ad982a2f6782724cca8ba'
         '3dc88030a8f2f5a5f97266d99b149f77')
sha1sums=('SKIP'
          '33a0fad7a64e4d402cd6af04d0890f618d573081'
          '937f93aa6d1a14babea9ff7de12aa2c73763e675'
          '0fb7ac9f742f3b7dec37c2778e1830b8ce588f1b'
          '3b0160191978ebd905891211ef8abe1c17dab9ad')
sha256sums=('SKIP'
            'c5b1680e21de96b42be7fb57821e82ec3b2d5d6097388f224c3501e5f473539d'
            '66644820faa950a5fc59181f5aefcbed6d7ed652b29aee69979a2be2a032025d'
            '452b8d4d71e1565ca91b1bebb280693549222ef51c47ba8964e411b2d461699c'
            '71df1b18a3885b151a3b9d926a91936da2acc90d5e27f1ad326745779cd3759d')
sha512sums=('SKIP'
            'e88581c675d32c6872bfe723e81c53db252d223b3a9166e9320f7dbb52ec5ca63f4878e7921aae1853c369ae16f6b40374b3dc8701d9c19bedb8df1e620ff671'
            'a492aae17ee4a316ce03faf9f1b284b2529c485f4b092cc4a1f865a6c68d482fd356fd30efa296c116975a3bdf3922f5bf03912a8d0e76f4ab24aa6ab9f8c276'
            '6b57a66b870b2f525e2dedd8f224b89474fd4ec6ea18484b0a67a1a2b9a4fc95d025cac181504406ea42a35d6c1b184c0d4e38c92815022935fc55746c69c7c1'
            'b2cdb620fcc6f0b430b0cf0c844887c2c1e290844ea330750cad52c9ec04e835ead973b664c7613d147037c388120affe97dfd2f2e0f9ae224db52aaa4cb8814')

export CROSS_COMPILE=aarch64-linux-gnu- CROSS_COMPILE_ARM32=arm-linux-gnueabihf-
export KBUILD_BUILD_USER=ci KBUILD_BUILD_HOST=classfun.cn
export ARCH=arm64 CARCH=aarch64

pkgver() {
	cd "$srcdir/linux-next"
	local VERSION="$(awk '$1=="VERSION"{print $3}' Makefile)"
	local PATCHLEVEL="$(awk '$1=="PATCHLEVEL"{print $3}' Makefile)"
	local SUBLEVEL="$(awk '$1=="SUBLEVEL"{print $3}' Makefile)"
	local EXTRAVERSION="$(awk '$1=="EXTRAVERSION"{print $3}' Makefile)"
	local COMMIT="$(git rev-parse --short=12 HEAD)"
	EXTRAVERSION="${EXTRAVERSION//-/.}"
	echo "${VERSION}.${PATCHLEVEL}.${SUBLEVEL}${EXTRAVERSION}.${COMMIT}"
}

prepare() {
	cd "$srcdir/linux-next"
	echo "Setting version..."
	echo "-$pkgrel" > localversion.10-pkgrel
	echo "${pkgbase#linux}" > localversion.20-pkgname
	ln -sf "$srcdir/defconfig" arch/arm64/configs/makepkg_defconfig
	make makepkg_defconfig
}

build() {
	cd "$srcdir/linux-next"
	make prepare
	make -s kernelrelease > version
	unset LDFLAGS
	make ${MAKEFLAGS} Image Image.gz modules
	make ${MAKEFLAGS} DTC_FLAGS="-@" dtbs
}

_package() {
	pkgdesc="The Linux Kernel and modules - Qualcomm Snapdragon 8 Gen 2 (SM8550)"
	depends=('coreutils' 'kmod' 'mkinitcpio>=0.7')
	optdepends=('wireless-regdb: to set the correct wireless channels of your country')
	provides=("linux=${pkgver}" "linux-aarch64" "WIREGUARD-MODULE")
	conflicts=('linux' 'linux-aarch64')
	backup=("etc/mkinitcpio.d/${pkgbase}.preset")
	install=${pkgname}.install

	cd "$srcdir/linux-next"
	local kernver="$(<version)"
	local modulesdir="$pkgdir/usr/lib/modules/$kernver"

	echo "Installing boot image and dtbs..."
	install -Dm644 arch/arm64/boot/Image{,.gz} -t "${pkgdir}/boot"
	make INSTALL_DTBS_PATH="${pkgdir}/boot/dtbs" dtbs_install

	echo "Installing modules..."
	make INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 modules_install

	# remove build and source links
	rm "$modulesdir"/build

	  # sed expression for following substitutions
	local _subst="
		s|%PKGBASE%|${pkgbase}|g
		s|%KERNVER%|${kernver}|g
	"
	# install mkinitcpio preset file
	sed "${_subst}" ../linux.preset | install -Dm644 /dev/stdin "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"

	# install pacman hooks
	sed "${_subst}" ../60-linux.hook | install -Dm644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/60-${pkgbase}.hook"
	sed "${_subst}" ../90-linux.hook | install -Dm644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/90-${pkgbase}.hook"
}

_package-headers() {
	pkgdesc="Header files and scripts for building modules for linux kernel - Qualcomm Snapdragon 8 Gen 2 (SM8550)"
	provides=("linux-headers=${pkgver}")
	conflicts=('linux-headers')

	cd "$srcdir/linux-next"
	local builddir="$pkgdir/usr/lib/modules/$(<version)/build"

	echo "Installing build files..."
	install -Dt "$builddir" -m644 .config Makefile Module.symvers System.map \
	localversion.* version vmlinux
	install -Dt "$builddir/kernel" -m644 kernel/Makefile
	install -Dt "$builddir/arch/arm64" -m644 arch/arm64/Makefile
	cp -t "$builddir" -a scripts

	# add xfs and shmem for aufs building
	mkdir -p "$builddir"/{fs/xfs,mm}

	echo "Installing headers..."
	cp -t "$builddir" -a include
	cp -t "$builddir/arch/arm64" -a arch/arm64/include
	install -Dt "$builddir/arch/arm64/kernel" -m644 arch/arm64/kernel/asm-offsets.s
	mkdir -p "$builddir/arch/arm"
	cp -t "$builddir/arch/arm" -a arch/arm/include

	install -Dt "$builddir/drivers/md" -m644 drivers/md/*.h
	install -Dt "$builddir/net/mac80211" -m644 net/mac80211/*.h

	# https://bugs.archlinux.org/task/13146
	install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h

	# https://bugs.archlinux.org/task/20402
	install -Dt "$builddir/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
	install -Dt "$builddir/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
	install -Dt "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h

	# https://bugs.archlinux.org/task/71392
	install -Dt "$builddir/drivers/iio/common/hid-sensors" -m644 drivers/iio/common/hid-sensors/*.h

	echo "Installing KConfig files..."
	find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;

	echo "Removing unneeded architectures..."
	local arch
	for arch in "$builddir"/arch/*/; do
		[[ $arch = */arm64/ || $arch == */arm/ ]] && continue
		echo "Removing $(basename "$arch")"
		rm -r "$arch"
	done

	echo "Removing documentation..."
	rm -r "$builddir/Documentation"

	echo "Removing broken symlinks..."
	find -L "$builddir" -type l -printf 'Removing %P\n' -delete

	echo "Removing loose objects..."
	find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete

	echo "Stripping build tools..."
	local file
	while read -rd '' file; do
		case "$(file -bi "$file")" in
			application/x-sharedlib\;*)      # Libraries (.so)
				strip -v $STRIP_SHARED "$file" ;;
			application/x-archive\;*)        # Libraries (.a)
				strip -v $STRIP_STATIC "$file" ;;
			application/x-executable\;*)     # Binaries
				strip -v $STRIP_BINARIES "$file" ;;
			application/x-pie-executable\;*) # Relocatable binaries
				strip -v $STRIP_SHARED "$file" ;;
		esac
	done < <(find "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
	echo "Adding symlink..."
	mkdir -p "$pkgdir/usr/src"
	ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
}

pkgname=("${pkgbase}" "${pkgbase}-headers")
for _p in ${pkgname[@]}; do
	eval "package_${_p}() {
		_package${_p#${pkgbase}}
	}"
done