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

pkgname="linux-samsung-kylessopen"
pkgver=3.0.101
pkgrel=4
pkgdesc="Samsung Galaxy Trend kernel fork"
arch="armhf"
_carch="arm"
_flavor="samsung-kylessopen"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev devicepkg-dev lzo xz"

# Compiler: latest GCC from Alpine
HOSTCC="${CC:-gcc}"
HOSTCC="${HOSTCC#${CROSS_COMPILE}}"

# Source: backup of https://github.com/pavlepiramida/FrankenKernel
_kernel="pavlepiramida-frankenkernel"
_commit="d0e853abec2d7be79f5d9b319273a0b66046b125"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://gitlab.com/samsung-kylessopen-kernels/$_kernel/-/archive/$_commit/$_kernel-$_commit.tar.gz
	$_config
	gcc5.patch
	0001-fix-video-argb-setting.patch
	gcc7-give-up-on-ilog2-const-optimizations.patch
	gcc8-fix-put-user.patch
"
builddir="$srcdir/$_kernel-$_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="874957ad6a6c959b5479ece21225d9423f62e67a6a4c1f9a9e56d0c6078b6644a4ff2e490c7e43a8ef5241b148af6085b041f02268586cf8c61b1eacfd3511ad  linux-samsung-kylessopen-d0e853abec2d7be79f5d9b319273a0b66046b125.tar.gz
b28a411506adb2540c3de93b4d7529d25efb96ab93b31417bd78c4deea3b1e4f63bd4240d090dd27c54040e9c937a27bc8702d471be414722265d2dbd1cf4630  config-samsung-kylessopen.armhf
db5d16e03a93b453c98882dcd08b7a4cd96c126393365d8916d9cf045e8725831f70ea841756526af7bead36a74301024e3c569c438442906e079fea2ac0a022  gcc5.patch
e3083c260ed9c4fc0d83f43106700b6173876dbfae072f6e6696ac6785a4dc17771fbcb3e21601e04ed29a11bf0f7a2a09ad549375e0c34cea245c7f2e2bcbbd  0001-fix-video-argb-setting.patch
77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch"