# Reference: <https://postmarketos.org/vendorkernel>
# Kernel config based on: arch/arm/configs/bcm21664_hawaii_ss_kylepro_rev00_lineage_defconfig

pkgname="linux-samsung-kylepro"
pkgver=3.4.113
pkgrel=3
pkgdesc="Samsung Galaxy Trend Plus kernel fork"
arch="armhf"
_carch="arm"
_flavor="samsung-kylepro"
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_kyleproxx"
_commit="026cf3b3e97ec40aa1c0c52837a318725786f05a"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/Samsung-KYLEPROXX/${_repository}/archive/${_commit}.tar.gz
	$_config
	gcc7-give-up-on-ilog2-const-optimizations.patch
	gcc8-fix-put-user.patch
	00_return_address.patch
	02_screen_reset.patch
"
builddir="$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="b66ab7d8ed557ed095b059beb7b37d196a7290e6c8364560126a94f696718c4a61f99b1e21700d9a4b50c569243e4e2cbfc9fbd9d9517ca49cfa32f31525c27f  linux-samsung-kylepro-026cf3b3e97ec40aa1c0c52837a318725786f05a.tar.gz
2cbb243d21a627eb1ca06aeeec2fec05d3b93905c47c52480381adc6932c8473e284a173948ce1f66311c93fa1553a2ccbc7d7173314f6cd8245b62e0bef2a4f  config-samsung-kylepro.armhf
77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
c40eaa11547f5bc2b1ff965506bdfe3015ff16e4b5ad9ccb3b8134ceafd1d32407c4ef2b213e02e036ce1e9bdcbfe768dff7d4b054bec77705a176c1f783b6f5  00_return_address.patch
c0a59be648ef646650c83b5d135daa05aae300c7ad5056d49f1b3f9967c4d7f337b0ddb8ae319b11e43c17aaf5fc9dcc9724463d265c1d765dc85c86f612f4ea  02_screen_reset.patch"
