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# Copyright 2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit kernel-build
MY_P=linux-${PV%.*}
GENPATCHES_P=genpatches-${PV%.*}-$(( ${PV##*.} + 1 ))
# https://koji.fedoraproject.org/koji/packageinfo?packageID=8
CONFIG_VER=5.4.21
CONFIG_HASH=2809b7faa6a8cb232cd825096c146b7bdc1e08ea
DESCRIPTION="Linux kernel built with Gentoo patches"
HOMEPAGE="https://www.kernel.org/"
SRC_URI+=" https://cdn.kernel.org/pub/linux/kernel/v$(ver_cut 1).x/${MY_P}.tar.xz
https://dev.gentoo.org/~alicef/dist/genpatches/${GENPATCHES_P}.base.tar.xz
https://dev.gentoo.org/~alicef/dist/genpatches/${GENPATCHES_P}.extras.tar.xz
amd64? (
https://src.fedoraproject.org/rpms/kernel/raw/${CONFIG_HASH}/f/kernel-x86_64.config
-> kernel-x86_64.config.${CONFIG_VER}
)
arm64? (
https://src.fedoraproject.org/rpms/kernel/raw/${CONFIG_HASH}/f/kernel-aarch64.config
-> kernel-aarch64.config.${CONFIG_VER}
)
ppc64? (
https://src.fedoraproject.org/rpms/kernel/raw/${CONFIG_HASH}/f/kernel-ppc64le.config
-> kernel-ppc64.config.${CONFIG_VER}
)
x86? (
https://src.fedoraproject.org/rpms/kernel/raw/${CONFIG_HASH}/f/kernel-i686.config
-> kernel-i686.config.${CONFIG_VER}
)"
S=${WORKDIR}/${MY_P}
LICENSE="GPL-2"
KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
IUSE="debug"
RDEPEND="
!sys-kernel/vanilla-kernel:${SLOT}
!sys-kernel/vanilla-kernel-bin:${SLOT}"
BDEPEND="
debug? ( dev-util/dwarves )"
pkg_pretend() {
ewarn "Starting with 5.4.52, Distribution Kernels are switching from Arch"
ewarn "Linux configs to Fedora. Please keep a backup kernel just in case."
kernel-install_pkg_pretend
}
src_prepare() {
local PATCHES=(
# meh, genpatches have no directory
"${WORKDIR}"/*.patch
)
default
# prepare the default config
case ${ARCH} in
amd64)
cp "${DISTDIR}/kernel-x86_64.config.${CONFIG_VER}" .config || die
;;
arm64)
cp "${DISTDIR}/kernel-aarch64.config.${CONFIG_VER}" .config || die
;;
ppc64)
cp "${DISTDIR}/kernel-ppc64.config.${CONFIG_VER}" .config || die
;;
x86)
cp "${DISTDIR}/kernel-i686.config.${CONFIG_VER}" .config || die
;;
*)
die "Unsupported arch ${ARCH}"
;;
esac
local config_tweaks=(
# shove arch under the carpet!
-e 's:^CONFIG_DEFAULT_HOSTNAME=:&"gentoo":'
# we do support x32
-e '/CONFIG_X86_X32/s:.*:CONFIG_X86_X32=y:'
# disable signatures
-e '/CONFIG_MODULE_SIG/d'
-e '/CONFIG_SECURITY_LOCKDOWN/d'
)
use debug || config_tweaks+=(
-e '/CONFIG_DEBUG_INFO/d'
)
[[ ${ARCH} == x86 ]] && config_tweaks+=(
# fix autoenabling 64bit
-e '2i\
# CONFIG_64BIT is not set'
)
sed -i "${config_tweaks[@]}" .config || die
}
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