# Co-Maintainer: Achill Gilgenast <achill@achill.org>
maintainer="Aelin <aelin@postmarketos.org>"
pkgname=linux-postmarketos-mainline
pkgver=7.1_rc5
pkgrel=0
_rel=${pkgver#*_p}
_kver=${pkgver%_p*}
_kver=${_kver//_/-}
pkgdesc="Mainline 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="mainline"
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
"

# 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/
#
# Patch #4 fixes 32-bit platform builds and is taken from here:
# https://lore.kernel.org/all/20260517-hid-core-fix-size_t-specifier-v1-1-bfdd959ec383@kernel.org/
source="
	$pkgname-$pkgver.tar.gz::https://git.kernel.org/torvalds/t/linux-${pkgver/_/-}.tar.gz

	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-mainline.aarch64
	config-mainline.armv7
	config-mainline.loongarch64
	config-mainline.ppc64le
	config-mainline.riscv64
	config-mainline.x86
	config-mainline.x86_64
"
builddir="$srcdir/linux-${pkgver/_/-}"
_defconfig="defconfig"

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="
fc738e2efbc2b5b355a3d0ef97f1b0e3aa4b7d9429b0ac4816839e39724ac9100fa6c819fd9484ed04072a29a6bdda8306bb11261d27fcebdc11605bf7e530f3  linux-postmarketos-mainline-7.1_rc5.tar.gz
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
e2a2b28726a908b493021737a02ad28f49448d5aea4df8342f66533e3ecfcad0ebb27b2a8420c896961d1e0f9e7389438a665cab195cce8d211f6c6ff08eca7b  config-mainline.aarch64
ec8e1acf6bdbacdc59b7754455360ecd6e9efc864e709026ad1c4d0703aea0c62b12023805910154f1d3291439e70575ccfce8912b5e23c3ab90acf33322b7e6  config-mainline.armv7
6c3bdb4cdb51c1ed4408139e1036d9f0eaa6af04dc761203d54f9be02efeb96c0594f1fe95436da084c30ac25f012170ed2c9a4965b108a209ea58c9f1258a0d  config-mainline.loongarch64
4d7a2033b8568a95cf7574ab640caefb5a2337a6ae2b4595409303bdea87cc431ed486208466c92e66cf8eba974b8516223079e3e43ab29714b137947f2a2054  config-mainline.ppc64le
260adfa83b368b57555447d0e7dc36bbd4985821e1897f9946e1e447f672bb92c921327575e857cf5d1b4d2c19ed93e533beb77d38386d56cc008095331b645b  config-mainline.riscv64
5301fba03574192c38ddd469c14c0fd1071816532aa4ee9edce31284173069a2a350ecfe57c49bcdab2df9159672b7920a66095ff038170052e1203c617fcc6d  config-mainline.x86
ac60a67dbe9efea40c0743fa60f86e52ab242f730ab6ba24ea085790fbe318190170bd5f76e13de323b993a5154b169a4c12b4f1751ec35732cc9f964c67a987  config-mainline.x86_64
"
