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

pkgname="linux-lg-bullhead"
pkgver=3.10.108
pkgrel=2
pkgdesc="Google Nexus 5X kernel fork"
arch="aarch64"
_carch="arm64"
_flavor="lg-bullhead"
url="https://kernel.org"
license="GPL2"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev xz 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="bullhead"
_commit="57351a6494f82cda87c697e10afb98b7f3bd28a2"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/franciscofranco/${_repository}/archive/${_commit}.tar.gz
	$_config
	compiler-gcc6.h
	static-inline.patch
	driver-fix.patch
	undefined-screen_info.patch
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare

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

	# Remove -Werror from all makefiles
	local i
	local makefiles="$(find . -type f -name Makefile)
		$(find . -type f -name Kbuild)"
	for i in $makefiles; do
		sed -i 's/-Werror-/-W/g' "$i"
		sed -i 's/-Werror//g' "$i"
	done

	# 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="f34e79b5c80e6dcb2de4a85ec5a59b837338b55c4fef5ac5c6dfaf0d78220a016397442032fbf340eeead1201dd01feeff660adfe3406fdddf66832e59416898  linux-lg-bullhead-57351a6494f82cda87c697e10afb98b7f3bd28a2.tar.gz
7e49fa92edfe2057f3454909ad2bc7e643c8372fbb64003ec66581896e6497cedd506a721df436f10f741d30cceee7c1e8a9fbe215755deae575bb2e2b5bb757  config-lg-bullhead.aarch64
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
ad77ff2bea83e603bfdbd6bdae7a15f8e8d4a4a005a6ad26b6d8872767bb80b41cc2c0df228d6978ad0bd9e84486bea98a178478b93948e3e37794755e136bd6  static-inline.patch
64060a1b42743b398feb7b9b05259ff5bc8a3607c9e357d9c1f57c9c0994b433a2fc0c2697a34c71b78ca4096f06ef18e1f5575c4a6a3e93d3c39066ee88d418  driver-fix.patch
f05386bd27c61e579e69b6ece42b99438ae6da67b8321eec3e4b408a06ff9bdc35cb354fe6dd66751c9118263463f91eb8c250e82532ec4698ea61ac3371c558  undefined-screen_info.patch"