projectmoon-overlay/sys-kernel/libre-kernel/libre-kernel-5.15.105.ebuild

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# Copyright 2020-2023 Gentoo Authors, projectmoon
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit kernel-build verify-sig
BASE_VER="$(ver_cut 1).$(ver_cut 2).$(ver_cut 3)"
RESTRICT="mirror"
GENPATCHES_P=genpatches-${PV%.*}-$(( ${PV##*.} + 5 ))
CONFIG_VER=5.15.19
CONFIG_HASH=ec69da7a42b5b7c3da91572ef22097b069ddbd01
GENTOO_CONFIG_VER=g7
DESCRIPTION="GNU Linux-libre kernel built from upstream sources"
HOMEPAGE="https://www.fsfla.org/ikiwiki/selibre/linux-libre/"
SRC_URI+="
https://git.agnos.is/projectmoon/projectmoon-overlay-files/media/branch/main/sys-kernel/libre-kernel/linux-libre-${BASE_VER}-gnu.tar.xz
https://linux-libre.fsfla.org/pub/linux-libre/releases/${BASE_VER}-gnu/linux-libre-${BASE_VER}-gnu.tar.xz
https://dev.gentoo.org/~mpagano/dist/genpatches/${GENPATCHES_P}.base.tar.xz
https://dev.gentoo.org/~mpagano/dist/genpatches/${GENPATCHES_P}.extras.tar.xz
https://github.com/projg2/gentoo-kernel-config/archive/${GENTOO_CONFIG_VER}.tar.gz
-> gentoo-kernel-config-${GENTOO_CONFIG_VER}.tar.gz
verify-sig? (
https://git.agnos.is/projectmoon/projectmoon-overlay-files/media/branch/main/sys-kernel/libre-kernel/linux-libre-${BASE_VER}-gnu.tar.xz.sign
https://linux-libre.fsfla.org/pub/linux-libre/releases/${BASE_VER}-gnu/linux-libre-${BASE_VER}-gnu.tar.xz.sign
)
amd64? (
https://raw.githubusercontent.com/projg2/fedora-kernel-config-for-gentoo/${CONFIG_VER}/kernel-x86_64-fedora.config
-> kernel-x86_64-fedora.config.${CONFIG_VER}
)
"
# Workdir is named linux-PV.
MY_P=linux-${PV}
S=${WORKDIR}/${MY_P}
LICENSE="GPL-2"
KEYWORDS="amd64"
IUSE="debug +gentoo"
BDEPEND="
debug? ( dev-util/pahole )
verify-sig? ( sec-keys/openpgp-keys-linux-libre )
"
PDEPEND="
>=virtual/dist-kernel-${PV}
"
VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/linux-libre.asc
pkg_pretend() {
if has_version -d sys-kernel/linux-firmware[redistributable]; then
ewarn "sys-kernel/linux-firmware was found installed on your system,"
ewarn "but it is configured to install non-Free firmware files."
ewarn "The non-Free firmware files may be required for some hardware"
ewarn "work. The Linux-libre kernel cannot load non-Free firmware."
ewarn "To install only the Free firmware, set the -redistributable"
ewarn "USE flag on sys-kernel/linux-firmware."
if use initramfs; then
elog
elog "If you decide to change or remove linux-firmware later, you"
elog "can rebuild the initramfs via issuing a command equivalent to:"
elog
elog " emerge --config ${CATEGORY}/${PN}:${SLOT}"
fi
else
if ! has_version -d sys-kernel/linux-firmware; then
ewarn "sys-kernel/linux-firmware[-redistributable] not found installed"
ewarn "on your system. This package provides various firmware files that"
ewarn "may be needed for your hardware to work. If in doubt, it is recommended"
ewarn "to pause or abort the build process and install it before"
ewarn "resuming."
if use initramfs; then
elog
elog "If you decide to install linux-firmware later, you can rebuild"
elog "the initramfs via issuing a command equivalent to:"
elog
elog " emerge --config ${CATEGORY}/${PN}:${SLOT}"
fi
fi
fi
}
src_unpack() {
if use verify-sig; then
FILE="${DISTDIR}"/linux-libre-${PV}-gnu.tar.xz
SIGFILE="${DISTDIR}"/linux-libre-${PV}-gnu.tar.xz.sign
verify-sig_verify_detached $FILE $SIGFILE
fi
default
}
src_prepare() {
local PATCHES
if use gentoo; then
# Fiters out the kernel incremenetal version upgrade patches,
# leaving only the Gentoo bug fix/functionality changes. The
# regex removes any patches starting with 10XX to 14XX.
MY_PATCHES=$(find "${WORKDIR}"/*.patch -printf "%f\n" | grep -v -E -e '^1[01234][[:digit:]][[:digit:]]_.+.patch')
PATCHES=$(echo "$MY_PATCHES" | sed 's|^|'"${WORKDIR}/"'|g')
else
# If no patches are to be applied, apply only the config changes
# for a Gentoo installation, as this does not change any actual
# Kernel functionality.
PATCHES="${WORKDIR}/4567_distro-Gentoo-Kconfig.patch"
fi
default
local biendian=false
# prepare the default config
case ${ARCH} in
amd64)
cp "${DISTDIR}/kernel-x86_64-fedora.config.${CONFIG_VER}" .config || die
;;
*)
die "Unsupported arch ${ARCH}"
;;
esac
sed -i 's/EXTRAVERSION = -gnu/EXTRAVERSION = /' "${S}"/Makefile || \
die 'could not remove EXTRAVERSION'
local myversion="-gnu-dist"
echo "CONFIG_LOCALVERSION=\"${myversion}\"" > "${T}"/version.config || die
local dist_conf_path="${WORKDIR}/gentoo-kernel-config-${GENTOO_CONFIG_VER}"
local merge_configs=(
"${T}"/version.config
"${dist_conf_path}"/base.config
)
use debug || merge_configs+=(
"${dist_conf_path}"/no-debug.config
)
# this covers ppc64 and aarch64_be only for now
if [[ ${biendian} == true && $(tc-endian) == big ]]; then
merge_configs+=( "${dist_conf_path}/big-endian.config" )
fi
kernel-build_merge_configs "${merge_configs[@]}"
}