# Kernel config based on: arch/arm64/configs/santoni_defconfig
pkgname="linux-xiaomi-santoni"
pkgver=3.18.138
pkgrel=1
pkgdesc="Xiaomi Redmi 4X kernel fork - msm-3.18 rebase"
arch="aarch64"
_carch="arm64"
_flavor="xiaomi-santoni"
url="https://kernel.org"
license="GPL2"
options="!strip !check !tracedeps"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev"

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

# Source
_repository="msm-3.18"
_commit="956c047fa31074ee76088f3f673e9fe20e086b74"
_config="config-${_flavor}.${arch}"
source="
	$pkgname-$_commit.tar.gz::https://github.com/bitrvmpd/${_repository}/archive/${_commit}.tar.gz
	fix-xorg-mdss-update-fb-info.patch
	disable-substream-runtime-errors.patch
	$_config
"
builddir="$srcdir/${_repository}-${_commit}"

prepare() {
	default_prepare

	# Remove -Werror from all makefiles
	local i
	local makefiles="$(find . -type f -name Makefile)
		$(find . -type f -name Kbuild)"
	for i in $makefiles; do
		sed -i 's/-Werror-/-W/g' "$i"
		sed -i 's/-Werror//g' "$i"
	done

	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
	cp "$srcdir"/$_config "$builddir"/.config
	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
}

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="c3b48b61a51a1294f3520086a70b5f2b9fa3c1bcb61febadcb334a46abbea3e05df2ab60eb969552fe605373bde586b64ab78e2fd1a77d6a37bbfcb08d395ad5  linux-xiaomi-santoni-956c047fa31074ee76088f3f673e9fe20e086b74.tar.gz
a277af28a718f5caf94257005393aa92d62c96110a8ec6368ff62f2e0d871b69c56c4ce00174db637204d53fa63ad3a79b8d6141713dca0878e1f06fe0379caa  fix-xorg-mdss-update-fb-info.patch
14ee08e4f93befeaabfb35e6bf0b8bb5b2eecba1c21ce4498499c377c2cf4d5fccbfe85e14ca92c704d067386ec08a06805ab886f0ec7691471cf379838545aa  disable-substream-runtime-errors.patch
cda421f78eb8117f7f0ec94ca9d3d7d0ff6c221c0bee1c1cbf9e6f1acacb56e4c37e35760c9b3d6150ab590f9b28066315d415c7331d9ee914132d2d2dd8a6a0  config-xiaomi-santoni.aarch64"