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# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI="6"
inherit linux-info linux-mod flag-o-matic
if [[ "${PV}" == "9999" ]]; then
inherit git-r3
EGIT_REPO_URI="https://github.com/dynup/${PN}.git"
else
SRC_URI="https://github.com/dynup/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
KEYWORDS="~amd64"
fi
DESCRIPTION="Dynamic kernel patching for Linux"
HOMEPAGE="https://github.com/dynup/kpatch"
LICENSE="GPL-2+"
SLOT="0"
IUSE="examples +modules test"
RDEPEND="
app-crypt/pesign
dev-libs/openssl:0=
sys-libs/zlib
sys-apps/pciutils
"
DEPEND="
${RDEPEND}
dev-libs/elfutils
sys-devel/bison
"
pkg_pretend() {
if kernel_is gt 3 9 0; then
if ! linux_config_exists; then
eerror "Unable to check the currently running kernel for kpatch support"
eerror "Please be sure a .config file is available in the kernel src dir"
eerror "and ensure the kernel has been built."
else
# Fail to build if these kernel options are not enabled (see kpatch/kmod/core/Makefile)
CONFIG_CHECK="FUNCTION_TRACER HAVE_FENTRY MODULES SYSFS KALLSYMS_ALL"
ERROR_FUNCTION_TRACER="CONFIG_FUNCTION_TRACER must be enabled in the kernel's config file"
ERROR_HAVE_FENTRY="CONFIG_HAVE_FENTRY must be enabled in the kernel's config file"
ERROR_MODULES="CONFIG_MODULES must be enabled in the kernel's config file"
ERROR_SYSFS="CONFIG_SYSFS must be enabled in the kernel's config file"
ERROR_KALLSYMS_ALL="CONFIG_KALLSYMS_ALL must be enabled in the kernel's config file"
fi
else
eerror
eerror "kpatch is not available for Linux kernels below 4.0.0"
eerror
die "Upgrade the kernel sources before installing kpatch."
fi
check_extra_config
}
src_prepare() {
replace-flags '-O?' '-O1'
default
}
src_compile() {
set_arch_to_kernel
emake all
}
src_install() {
set_arch_to_kernel
emake DESTDIR="${D}" PREFIX="/usr" install
einstalldocs
}
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