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

pkgname="linux-samsung-jflte"
pkgver=3.4.112
pkgrel=7
pkgdesc="Samsung Galaxy S4 kernel fork"
arch="armhf"
_carch="arm"
_flavor="samsung-jflte"
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"

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

# Source
_repository="android_kernel_samsung_jf"
_commit="e8d93e03563e42d7c762d4e9a87d77115102b301"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
	$_config
	00_fix_return_address.patch
	patch_lifebook_detect.patch
	patch_fsp_detect.patch
	02_gpu-msm-fix-gcc5-compile.patch
	03-fix-video-argb-setting.patch
	gpu_msm2_fix_compile.patch
	gcc7-give-up-on-ilog2-const-optimizations.patch
	gcc8-fix-put-user.patch
"
builddir="$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="7b73724636d9fb2a19e6405b1c6acd9f08020cb2d8c51f209eab2dea90616f15e88e96cdea62931864a6a3f6d4ad1c0b0b9b5cae3e3a690c20f5a9dcb4b33d82  linux-samsung-jflte-e8d93e03563e42d7c762d4e9a87d77115102b301.tar.gz
db5954f282c568fd635df81f463712849571c0148233dd883c80cf42ad7b948dd42247032d513e600e4952d58a44fb76f57e1b7bc9502be9698a164c3933c0c5  config-samsung-jflte.armhf
ea1d3b5a234fa565e3c1a792de48f4fc4e6023d281d303c8e319c7ef28edc5739ab0e4dea0139a41f0a5c7d03e27921ccaa214fd0ac5c72245a094ce60128864  00_fix_return_address.patch
36418ec3d31d1d6d9915afcf3d38d4549aeeb49c3825414b51b67db7a1ab6482f22d2723da3b258b671956809949278a51f6507df9b0052aec0bd0c59f56919a  patch_lifebook_detect.patch
9da951bb0391564f33bdb0a97c339997eda7b15ec2f160da8af237cc87c233b8c3dcdc1a12759e04d69d075ae9b0afaf726101ef356e788d7f4606a03db2e248  patch_fsp_detect.patch
7be03a9e78b7ac330a54b1f00509caa0621a95c0c55901878ad757f9dd69cc05ba2c8b5ea987063ae1224f92c4d090d515fa5d369e7755181a4871b0d0f82881  02_gpu-msm-fix-gcc5-compile.patch
e3083c260ed9c4fc0d83f43106700b6173876dbfae072f6e6696ac6785a4dc17771fbcb3e21601e04ed29a11bf0f7a2a09ad549375e0c34cea245c7f2e2bcbbd  03-fix-video-argb-setting.patch
8ab0ed40315a22b046e6250df7ad0f7834ed011598c85d34500b6fc047f1c830b998f9fa3b1d5150d98ba34f3924cd62576e0e7d3d62fcc9832319eafc533c96  gpu_msm2_fix_compile.patch
77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch"