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

pkgname="linux-samsung-apexq"
pkgver=3.4.104
pkgrel=0
pkgdesc="Samsung Galaxy S Relay 4G kernel fork"
arch="armhf"
_carch="arm"
_flavor="samsung-apexq"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps"
makedepends="xz 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_d2"
_commit="3795379ed3f846bf17908ff29576a93caff5d1d7"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
	$_config
	01-fix-video-argb-setting.patch
	gcc7-give-up-on-ilog2-const-optimizations.patch
	gcc8-fix-put-user.patch
	kernel-use-the-gnu89-standard-explicitly.patch
"
builddir="$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"
	
	make ARCH="$_carch" CC="${CC:-gcc}" CFLAGS_MODULE="-fno-pic" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1))-postmarketOS" modules
}

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

	cd "$builddir"
	make ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1))-postmarketOS" INSTALL_MOD_PATH="$pkgdir" \
		modules_install
}

sha512sums="04c629c36182d580e3410c35bc14a0899c1610a1535fe3832d1de441c0051a6fc78c5166933cc33036000fad45b80acddc4043c3aeae994e3e4f5eefe80215d3  linux-samsung-apexq-3795379ed3f846bf17908ff29576a93caff5d1d7.tar.gz
94a4a335ea001281392dce2348984e61183b291f95ce4c11bb08f919f1aa5dd6c7aea9fb5fcdafdd8e5f46756f100d13af78fea576ada86e44da381ee0948bbb  config-samsung-apexq.armhf
edad59ee6defca3359fb3f1ba5cb6b933721bcc91a08dd21c842723d891545a8f08da1793623c79064c6a7e75daa434bb4fe052a56bc4e870f9f1efca165565a  01-fix-video-argb-setting.patch
77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
ad0182a483791fc88e058838bc331b2f04a75ba291e763767babdb815efadfc3b4fda97e69e2e3f00a426cabea088e35297a92bd287592597d1e309be68ee92c  kernel-use-the-gnu89-standard-explicitly.patch"
