# Maintainer: Casey Connolly <kcxt@postmarketos.org>
# Co-Maintainer: Joel Selvaraj <joelselvaraj.oss@gmail.com>
# Stable Linux kernel with patches for SDM845 devices
# Kernel config based on: arch/arm64/configs/defconfig and sdm845.config

_flavor="postmarketos-qcom-sdm845"
pkgname=linux-$_flavor
pkgver=6.16.0_rc2
pkgrel=1
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="bash bison findutils flex installkernel openssl-dev perl zstd python3"

_config="config-$_flavor.$arch"
_tag="sdm845-6.16-rc2-4"

# Source
source="
	linux-$_tag.tar.gz::https://gitlab.com/sdm845-mainline/linux/-/archive/$_tag/linux-$_tag.tar.gz
	$_config
"
builddir="$srcdir/linux-$_tag"

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

build() {
	unset LDFLAGS
	make ARCH="$_carch" CC="${CC:-gcc}" \
		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="$_carch" \
		INSTALL_PATH="$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="
904c7b83c9d00880e617b4d7102a16f51dd59afebfb00ff1353362203be2be069c1b7df40668bb9ddc83864541d493bbf6604a6722fc584553f8fd61b4bc3ef2  linux-sdm845-6.16-rc2-4.tar.gz
bb76a8d2424c59df6fdbc9e0264be988ddb758f5276fdd2d5cd41fa189a5617a5d26f8986c3968777f8b8786d0859fb2c1977246b66b996e6a9d066686703ec1  config-postmarketos-qcom-sdm845.aarch64
"
