gentoo-overlay/sys-kernel/hardened-kernel/hardened-kernel-6.6.47.ebuild

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# Copyright 2020-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
KERNEL_IUSE_GENERIC_UKI=1
KERNEL_IUSE_MODULES_SIGN=1
inherit kernel-build toolchain-funcs
MY_P=linux-${PV%.*}
GENPATCHES_P=genpatches-${PV%.*}-$(( ${PV##*.} + 7 ))
CONFIG_VER=6.6.12-gentoo
GENTOO_CONFIG_VER=g13
HARDENED_PATCH_VER="${PV}-hardened1"
GENPATCHES_EXCLUDE="1500_XATTR_USER_PREFIX.patch
1510_fs-enable-link-security-restrictions-by-default.patch
2900_dev-root-proc-mount-fix.patch
4200_fbcondecor.patch
4400_alpha-sysctl-uac.patch"
DESCRIPTION="Linux kernel built with Gentoo patches"
HOMEPAGE="
https://wiki.gentoo.org/wiki/Project:Distribution_Kernel
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/~mpagano/dist/genpatches/${GENPATCHES_P}.base.tar.xz
https://dev.gentoo.org/~mpagano/dist/genpatches/${GENPATCHES_P}.extras.tar.xz
https://github.com/anthraxx/linux-hardened/releases/download/v${HARDENED_PATCH_VER}/linux-hardened-v${HARDENED_PATCH_VER}.patch
https://github.com/projg2/gentoo-kernel-config/archive/${GENTOO_CONFIG_VER}.tar.gz
-> gentoo-kernel-config-${GENTOO_CONFIG_VER}.tar.gz
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}
)
arm64? (
https://raw.githubusercontent.com/projg2/fedora-kernel-config-for-gentoo/${CONFIG_VER}/kernel-aarch64-fedora.config
-> kernel-aarch64-fedora.config.${CONFIG_VER}
)
ppc64? (
https://raw.githubusercontent.com/projg2/fedora-kernel-config-for-gentoo/${CONFIG_VER}/kernel-ppc64le-fedora.config
-> kernel-ppc64le-fedora.config.${CONFIG_VER}
)
x86? (
https://raw.githubusercontent.com/projg2/fedora-kernel-config-for-gentoo/${CONFIG_VER}/kernel-i686-fedora.config
-> kernel-i686-fedora.config.${CONFIG_VER}
)
"
S=${WORKDIR}/${MY_P}
KEYWORDS="amd64 ~arm arm64 ~hppa ~loong ~ppc ppc64 ~riscv ~sparc x86"
IUSE="debug"
REQUIRED_USE="
arm? ( savedconfig )
hppa? ( savedconfig )
riscv? ( savedconfig )
sparc? ( savedconfig )
"
RDEPEND="
!sys-kernel/gentoo-kernel-bin:${SLOT}
"
BDEPEND="
debug? ( dev-util/pahole )
"
PDEPEND="
>=virtual/dist-kernel-${PV}
"
QA_FLAGS_IGNORED="
usr/src/linux-.*/scripts/gcc-plugins/.*.so
usr/src/linux-.*/vmlinux
usr/src/linux-.*/arch/powerpc/kernel/vdso.*/vdso.*.so.dbg
"
src_prepare() {
# remove some genpatches causes conflicts with linux-hardened patch
for patch in ${GENPATCHES_EXCLUDE}; do
rm -f ${WORKDIR}/${patch}
done
# Remove already exists changes in linux-hardened patch
sed -i '322,337d' "${WORKDIR}/4567_distro-Gentoo-Kconfig.patch"
# include linux-hardened patch with priority
cp ${DISTDIR}/linux-hardened-v${HARDENED_PATCH_VER}.patch ${WORKDIR}/1199_linux-hardened-${HARDENED_PATCH_VER}.patch
# copy Clear Linux patches
if [ -d "${FILESDIR}"/${MY_P} ]; then
cp "${FILESDIR}"/${MY_P}/*.patch ${WORKDIR}/
fi
local PATCHES=(
# meh, genpatches have no directory
"${WORKDIR}"/*.patch
)
default
sed -i "s@\-hardened1@@g" Makefile || die
local biendian=false
# prepare the default config
case ${ARCH} in
amd64)
cp "${FILESDIR}/linux-6.6.amd64.config" .config || die
;;
*)
die "Unsupported arch ${ARCH}"
;;
esac
local myversion="-hardened"
echo "CONFIG_LOCALVERSION=\"${myversion}\"" > "${T}"/version.config || die
local dist_conf_path="${WORKDIR}/gentoo-kernel-config-${GENTOO_CONFIG_VER}"
local merge_configs=(
"${T}"/version.config
)
use debug || merge_configs+=(
"${dist_conf_path}"/no-debug.config
)
merge_configs+=( "${dist_conf_path}"/hardened-base.config )
tc-is-gcc && merge_configs+=( "${dist_conf_path}"/hardened-gcc-plugins.config )
if [[ -f "${dist_conf_path}/hardened-${ARCH}.config" ]]; then
merge_configs+=( "${dist_conf_path}/hardened-${ARCH}.config" )
fi
# 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
use secureboot && merge_configs+=( "${dist_conf_path}/secureboot.config" )
kernel-build_merge_configs "${merge_configs[@]}"
}