# Kernel config based on: arch/arm64/configs/lineageos_h815_defconfig

pkgname="linux-lg-h815"
pkgver=3.10.84
pkgrel=2
pkgdesc="LG G4 (h815) kernel fork"
arch="aarch64"
_carch="arm64"
_flavor="lg-h815"
url="https://kernel.org"
license="GPL2"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev gcc6"

# Compiler: this kernel was only tested with GCC6. Feel free to make a merge
# request if you find out that it is booting working with newer GCCs as
# well. See <https://postmarketos.org/vendorkernel> for instructions.
if [ "${CC:0:5}" != "gcc6-" ]; then
	CC="gcc6-$CC"
	HOSTCC="gcc6-gcc"
	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
fi

# Source
_repository="android_kernel_lge_msm8992"
_commit="aad745da91abbdf8bacda189aebf22db048604f5"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
	$_config
	compiler-gcc6.h
	fix-powerlevel.patch
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare

	# gcc6 support
	cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"

	# Remove -Werror from all makefiles
	find . -type f -name Makefile -print0 | \
		xargs -0 sed -i 's/-Werror-/-W/g'
	find . -type f -name Makefile -print0 | \
		xargs -0 sed -i 's/-Werror//g'

	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
	cp "$srcdir"/$_config "$builddir"/.config
	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
}

build() {
	unset LDFLAGS
	make ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
}

package() {
	# kernel.release
	install -D "$builddir/include/config/kernel.release" \
		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"

	# zImage (find the right one)
	cd "$builddir/arch/$_carch/boot"
	_target="$pkgdir/boot/vmlinuz-$_flavor"
	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
		[ -e "$_zimg" ] || continue
		msg "zImage found: $_zimg"
		install -Dm644 "$_zimg" "$_target"
		break
	done
	if ! [ -e "$_target" ]; then
		error "Could not find zImage in $PWD!"
		return 1
	fi
}

sha512sums="48a3345de582a6e4ba7fc2f87ffd423750bb8a1878ce386b8504306a49294e01e6c4c7511d2c178d8c9fb228c288782fe64f606df381843f144986d1cd467ad7  linux-lg-h815-aad745da91abbdf8bacda189aebf22db048604f5.tar.gz
a5939ad7e4c1e3d8b455dd262fc4c55e4facc09f315809da4b1d8e470908d15e489813a856c6709e05f1583ea906562a2ed2ef7c23511430eabc7a6f646c48bf  config-lg-h815.aarch64
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
337fe3e03580bbe73e5c20420981c11bf7c71e67270a828df309e6f08a573c3ce0d5cdd68efe5552abb4635d4ba1788df80e81745204955fedaf5731144ea994  fix-powerlevel.patch"