# Reference: <https://postmarketos.org/vendorkernel>
# Kernel config based on: arch/arm/configs/cyanogenmod_royss_defconfig

pkgname="linux-samsung-royss"
pkgver=3.4.0
pkgrel=1
pkgdesc="Samsung Galaxy Young kernel fork"
arch="armv7"
_carch="arm"
_flavor="samsung-royss"
url="https://github.com/Nothing-Dev/android_kernel_samsung_royss"
license="GPL-2.0-only"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev devicepkg-dev gcc4 xz"

## Compiler: GCC 4 (doesn't boot when compiled with newer versions)
if [ "${CC:0:5}" != "gcc4-" ]; then
	CC="gcc4-$CC"
	HOSTCC="gcc4-gcc"
	CROSS_COMPILE="gcc4-$CROSS_COMPILE"
fi

# Source
_repository="android_kernel_samsung_royss"
_commit="3169160cd6b23e0325fb5117cc347fc6acb2bc48"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/Nothing-Dev/${_repository}/archive/${_commit}.tar.gz
	$_config
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare
	downstreamkernel_prepare "$srcdir" "$builddir" "$_config" "$_carch" "$HOSTCC"
}

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="5dd49d41297247788d5b33815ec74f02ecc2566a9045102df63579dbc360f7c4c08fc4a28251efa02959137e7ed0f92a91b694145d40ee52bb0bf99557a7320a  linux-samsung-royss-3169160cd6b23e0325fb5117cc347fc6acb2bc48.tar.gz
a3567091c53630c4f4ce6e59f7f9c79dc34744ceb95a6541eea09421194740330cfce788c43ff82bc09303b9045d1902ec10beec3d1beeee2e5fb6f3d3c95039  config-samsung-royss.armv7"