# Co-Maintainer: Joel Selvaraj <foss@joelselvaraj.com>
# Stable Linux kernel with patches for SDM845 devices
# Kernel config based on: arch/arm64/configs/defconfig and sdm845.config
maintainer="Casey Connolly <kcxt@postmarketos.org>"
_flavor="postmarketos-qcom-sdm845"
pkgname=linux-$_flavor
pkgver=6.16.7
pkgrel=3
pkgdesc="Mainline Kernel fork for SDM845 devices"
arch="aarch64"
_carch="arm64"
url="https://gitlab.com/sdm845-mainline/linux"
license="GPL-2.0-only"
options="!check !tracedeps
	pmb:cross-native
	pmb:kconfigcheck-community"
makedepends="
	bison
	clang
	findutils
	flex
	installkernel
	lld
	llvm
	openssl-dev
	perl
	python3
	zstd
"

_config="config-$_flavor.$arch"
_tag="sdm845-6.16.7-r0"

# Source
source="
	linux-$_tag.tar.gz::https://gitlab.com/sdm845-mainline/linux/-/archive/$_tag/linux-$_tag.tar.gz
	$_config
	0001-arm64-dts-qcom-sdm845-xiaomi-beryllium-Fix-compatibl.patch
"
builddir="$srcdir/linux-$_tag"

prepare() {
	default_prepare
	cp "$srcdir/config-$_flavor.$arch" .config
}

build() {
	unset LDFLAGS
	make ARCH="$_carch" LLVM=1 \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-$_flavor"
}

package() {
	if [ -e "$builddir/arch/$_carch/boot/vmlinuz.efi" ]; then
		# ZBOOT EFI decompressor for EFI booting
		install -Dm644 "$builddir/arch/$_carch/boot/vmlinuz.efi" \
			"$pkgdir/boot/linux.efi"

		# Old GZIP'd kernel image for boot.img compatibility
		install -Dm644 "$builddir/arch/$_carch/boot/vmlinuz" \
			"$pkgdir/boot/vmlinuz"
	else
		echo "WARNING: CONFIG_ZBOOT not enabled!"
		install -Dm644 "$builddir/arch/$_carch/boot/Image.gz" \
			"$pkgdir/boot/vmlinuz"
	fi

	make modules_install dtbs_install \
		ARCH="$_carch" \
		LLVM=1 \
		INSTALL_PATH="$pkgdir"/boot/ \
		INSTALL_MOD_PATH="$pkgdir" \
		INSTALL_MOD_STRIP=1 \
		INSTALL_DTBS_PATH="$pkgdir"/boot/dtbs-tmp

	mkdir -p "$pkgdir"/boot/dtbs/qcom
	cp -r "$pkgdir"/boot/dtbs-tmp/qcom/sdm8* "$pkgdir"/boot/dtbs/qcom
	rm -rf "$pkgdir"/boot/dtbs-tmp

	rm -f "$pkgdir"/lib/modules/*/build "$pkgdir"/lib/modules/*/source

	install -D "$builddir"/include/config/kernel.release \
		"$pkgdir"/usr/share/kernel/$_flavor/kernel.release
}

sha512sums="
803d2cf85b248c3da41a9c9178d69d211eccf5d1adb72acd5343e09cbb65782f727e579939287c91712c69a862bed7344a0e2bc893c2791a971b6fed95ec6f1a  linux-sdm845-6.16.7-r0.tar.gz
57f744a06dd664d6ba7efec82ab1d8101d5b83dce424a388df95467183aa7c2d2fabf3a9e34271cd00e28eb731b74ef09e9613384765cf6eff7a6e2bd27b2c1d  config-postmarketos-qcom-sdm845.aarch64
fbd04f5f429ca1067dadb4209d5279e5fd3cfb4a5ae5957e8e189488109a6cf44d27aa1f38cceb78e1cc360d3020b0c4342ca768243eb6ba7460093a1306b98c  0001-arm64-dts-qcom-sdm845-xiaomi-beryllium-Fix-compatibl.patch
"
