# Reference: <https://postmarketos.org/vendorkernel>
# Kernel config based on: arch/arm64/configs/on7xelteswa_00_defconfig

pkgname=linux-samsung-on7xelte
pkgver=3.18.14
pkgrel=1
pkgdesc="Samsung Galaxy J7 Prime kernel fork"
arch="aarch64"
_carch="arm64"
_flavor="samsung-on7xelte"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps pmb:cross-native"
makedepends="
	bash
	bc
	bison
	devicepkg-dev
	dtbtool-exynos
	findutils
	flex
	gcc4
	openssl-dev
	perl
"
subpackages="$pkgname-nonfree-firmware:nonfree_firmware"

# 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="on7xelte"
_commit="dc426ce2d91179926c0fd9ab7d2404fbac4a55d0"
_config="config-$_flavor.$arch"
source="
	$pkgname-$_commit.tar.gz::https://gitlab.com/exynos7870-mainline/downstream/$_repository/-/archive/$_commit/$_repository-$_commit.tar.gz
	$_config
	gcc10-extern_YYLOC_global_declaration.patch
	gcc7-give-up-on-ilog2-const-optimizations.patch
	gcc8-fix-put-user.patch
	disable-fimc-is2.patch
	fix-usb-gadget-random-mac.patch
	disable-charging-bootmode.patch
	decon-fb-colors.patch
"
builddir="$srcdir/$_repository-$_commit"
_outdir="out"

prepare() {
	export ANDROID_MAJOR_VERSION=o
	default_prepare
	. downstreamkernel_prepare
}

build() {
	unset LDFLAGS

	# Samsung's kernels are built in-tree.
	# Copy some missing files to the output directory.
	mkdir -p "$_outdir/init/"
	mkdir -p "$_outdir/firmware/"
	cp init/vmm.elf "$_outdir/init/vmm.elf"
	cp firmware/gnss_firmware.bin "$_outdir/firmware/gnss_firmware.bin"

	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"

	# Master DTB (deviceinfo_bootimg_qcdt)
	dtbTool-exynos -o "$_outdir/arch/$_carch/boot"/dt.img \
		$(find "$_outdir/arch/$_carch/boot/dts/" -name *exynos7870*.dtb)
}

package() {
	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" \
		"$_flavor" "$_outdir"
	install -Dm644 "$_outdir/arch/$_carch/boot"/dt.img \
		"$pkgdir"/boot/dt.img
}

nonfree_firmware() {
	pkgdesc="Proprietary Firmware Blobs"
	depends="firmware-samsung-on7xelte"
	mkdir "$subpkgdir"
}

sha512sums="
88cad50360ca1687067e8adba0a5c2d023ddeb20fdf8e7752d626b7173e20b1ee8532265ea3a3395506ed9464379d8039c70e8721ba3f86b70ec44860b01bb96  linux-samsung-on7xelte-dc426ce2d91179926c0fd9ab7d2404fbac4a55d0.tar.gz
0ae84b5fa2f292419e6d513eda614ff533828b04127de491c9d2984fe159b3b7811aaba37c667aae38f405e8557ca343f7cad5d529d0e183e4b84367ecf8e2ff  config-samsung-on7xelte.aarch64
2b48f1bf0e3f70703d2cdafc47d5e615cc7c56c70bec56b2e3297d3fa4a7a1321d649a8679614553dde8fe52ff1051dae38d5990e3744c9ca986d92187dcdbeb  gcc10-extern_YYLOC_global_declaration.patch
77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
f429f40a8195e81d1c3ef86a5736bb29e09f3daaa2f415b9a992fb4dc8011c961c7b48fc97e08c3180ebacf8c2b97a5560022a9340eb44464e8ef98f3758e19e  disable-fimc-is2.patch
0d56ba508408dc31961ad688f7fd960b0008851fd5729088658095417781b99962740e0c64d162a26f8389e4b4dc88e291252e7935e896fc70bf73c23150caea  fix-usb-gadget-random-mac.patch
32e51c6171bcb72b15f5f11a9c9b3279e03e630f2ea6d14b66fbfdd8a8c1587bdb7e88698197e9a81e05c47dba08d13c1ff4a5e4692d14b042f07dd2006c1cc0  disable-charging-bootmode.patch
5bd204239a5daff9f990757178398707ae5ec64f823ed9ec72a8d50ebe6d5f0a3cc9743e0d775094da4b3a7566f1ccceb56f39f3b0234d08ca05e537d86271ec  decon-fb-colors.patch
"