# Co-Maintainer: Achill Gilgenast <achill@achill.org>
maintainer="Aelin <aelin@postmarketos.org>"
pkgname=linux-postmarketos-lts
pkgver=6.18.34
pkgrel=0
_kver=${pkgver%.*}
pkgdesc="LTS Kernel"
# armhf: pmbootstrap cannot dynamically choose a defconfig, so it ends up using multi_v7_defconfig which isn't correct
# s390x: kconfigcheck is not ready for it yet
arch="all !armhf !s390x"
_flavor="lts"
url="https://kernel.org"
license="GPL-2.0-only"
options="
	!check
	!strip
	!tracedeps
	pmb:cross-native
	pmb:generic-kernel
	pmb:kconfigcheck-community
	pmb:kconfigcheck-immutable
	pmb:kconfigcheck-rust
	pmb:kconfigcheck-selinux
	pmb:kconfigcheck-uefi
	pmb:kconfigcheck-virt
"
makedepends="
	bison
	clang
	clang-libclang
	diffutils
	elfutils-dev
	findutils
	flex
	kmod
	linux-headers
	lld
	llvm
	openssl-dev
	pahole
	perl
	postmarketos-installkernel
	python3
	rust
	rust-bindgen
	rust-src
	rustfmt
	sed
	zstd
"
replaces="linux-lts"

# powerpc boot wrapper patches:
# Necessary for compilation without cross GCC in PATH, cherry-picked from
# Nathan's fork, he does not have time to upstream them right now but would be
# happy if someone else did:
# https://lore.kernel.org/linuxppc-dev/aXs8sgAcci9FKKpx@luna/
source="
	linux-$_kver.tar.xz::https://cdn.kernel.org/pub/linux/kernel/v${pkgver%%.*}.x/linux-$_kver.tar.xz

	0001-WIP-arch-powerpc-boot-Support-LLVM-1-in-wrapper-scri.patch
	0002-WIP-arch-powerpc-boot-Use-z-notext-for-pseries-image.patch
	0003-WIP-arch-powerpc-boot-Add-z-norelro.patch

	config-lts.aarch64
	config-lts.armv7
	config-lts.loongarch64
	config-lts.ppc64le
	config-lts.riscv64
	config-lts.x86
	config-lts.x86_64
"
builddir="$srcdir/linux-$_kver"
_defconfig="defconfig"

if [ "${pkgver%.0}" = "$pkgver" ]; then
	# Prepend to apply first
	source="patch-$pkgver.patch.xz::https://cdn.kernel.org/pub/linux/kernel/v${pkgver%%.*}.x/patch-$pkgver.xz $source"
fi

case "$CARCH" in
	aarch64*) _carch="arm64" ;;
	arm*) _carch="arm" ;;
	loongarch*) _carch="loongarch" ;;
	ppc*) _carch="powerpc" ;;
	riscv*) _carch="riscv" ;;
	s390x) _carch="s390" ;;
	x86) _carch="i386" ;;
	x86_64) _carch="x86_64" ;;
esac

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

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

package() {
	local _install
	case "$CARCH" in
		arm*|aarch64|riscv*) _install="zinstall dtbs_install" ;;
		*) _install="install" ;;
	esac

	make modules_install $_install \
		ARCH="$_carch" \
		LLVM=1 \
		INSTALL_PATH="$pkgdir"/boot \
		INSTALL_MOD_PATH="$pkgdir"/usr \
		INSTALL_MOD_STRIP=1 \
		INSTALL_DTBS_PATH="$pkgdir"/boot/dtbs

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

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

sha512sums="
caeb17dc4f7654ef6d415ed081396d0ed06fd46bd713a659367903092da1e9d12f4a237d1d93776c8d73561bf76fc696d69a82289bd61982f785f97bfdae530f  patch-6.18.34.patch.xz
88599ffdec96d150c1feb9b261ba93bb0301a9d0e1ad6bef7aeab1f5372cbfc57d8b43c7e902bd8f76921d1dbd8189663c142ea869e51d0e2b483b150ee00fe0  linux-6.18.tar.xz
1f11df2480e9f691573283597160b4c806e492cdca4825f3acb3afb70bde43abfab487bcde1f5553b431a702a0039479d041b0ce7859970e706b5a51d2ad8fb0  0001-WIP-arch-powerpc-boot-Support-LLVM-1-in-wrapper-scri.patch
26521a9c9ea769534095dc4e306babadc8bcbaf03d7faa523c377e41ba0f742ecd0490fa27791d895f729c3ae8845297dca59b4db2475e7f078e689c447430bc  0002-WIP-arch-powerpc-boot-Use-z-notext-for-pseries-image.patch
302c20c85559fc9b3b2420ed25be1bfbb76c87f2a470e4141c32e9542cf1f5c6b3b5a7847231a3eaa0f6bc0e5942d0c1599e807175dcf5e63469704c3d6adde3  0003-WIP-arch-powerpc-boot-Add-z-norelro.patch
fbe691db86f4f5aaa0988c46f1a9dca183e4700efe9473c045d0e3c36f47a73d08d8e0ba3fe96500c1098ff2611f2e48700a750c0ab0a7ba09dce234aa800443  config-lts.aarch64
67cdffa9c6eb261f0d79de689b942fc29770f37c6a6823b15efa0778007eb3ce1327e77a51b3bbb842840ed14fc709c65ab6fbe42eeadc009f68880469ce090e  config-lts.armv7
7f076e95c4b0cc2a82be155100ceca0ab43f9299d1476990c9a8647625c4efa11bb2dc484af4f67094c7fbfbc4912f8ce13a2432b685a5c2963fac91be741109  config-lts.loongarch64
bf04563353842dbce273ed79d93744084b4617dd109b0fb2d21e43af54ab970ff2b56ed9a6a662d53fcc3df865df88c951a4a48fda121c8917ce4cd5cd60e5cc  config-lts.ppc64le
b0ad52eea5c6d82be1b179b7888fe80c927b0ecacb1aea92453ee3d9d6bffda3d057dfc7c4a43e3c46e306dee7ec8d14ee8219ebff4c3ac4bf37576a15630a8a  config-lts.riscv64
eaadebcc7c01a5419e5d63584a3b8126516aa3670da932e8609418ecaed3b5ae0d1ca79940334a31e6c9ab98b4786bc86fb613d1fe424b09e29a1dd814aa66fe  config-lts.x86
c90c061f7a9e266b609b0887e23655555690b802f8409d99f94fda79999a2db711d287b323492f8e7718a29fdd95b492199ac527e7c1de360609e0d893ecb697  config-lts.x86_64
"
