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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit libtool linux-info systemd
if [[ ${PV} == "9999" ]] ; then
inherit git-r3 autotools
EGIT_REPO_URI="https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git"
else
SRC_URI="https://www.kernel.org/pub/linux/utils/kernel/kexec/${P/_/-}.tar.xz"
[[ "${PV}" == *_rc* ]] || \
KEYWORDS="amd64 ~arm64 ~ppc64 x86"
fi
DESCRIPTION="Load another kernel from the currently executing Linux kernel"
HOMEPAGE="https://kernel.org/pub/linux/utils/kernel/kexec/"
LICENSE="GPL-2"
SLOT="0"
IUSE="booke lzma xen zlib"
REQUIRED_USE="lzma? ( zlib )"
DEPEND="
lzma? ( app-arch/xz-utils )
zlib? ( sys-libs/zlib )"
RDEPEND="${DEPEND}"
S="${WORKDIR}/${P/_/-}"
CONFIG_CHECK="~KEXEC"
PATCHES=(
"${FILESDIR}"/${PN}-2.0.4-disable-kexec-test.patch
"${FILESDIR}"/${PN}-2.0.4-out-of-source.patch
"${FILESDIR}"/${P}-remove-duplicated-variable-declarations.patch
"${FILESDIR}"/${P}-build-multiboot2-for-i386.patch
)
pkg_setup() {
# GNU Make's $(COMPILE.S) passes ASFLAGS to $(CCAS), CCAS=$(CC)
export ASFLAGS="${CCASFLAGS}"
}
src_prepare() {
default
# Append PURGATORY_EXTRA_CFLAGS flags set by configure, instead of overriding them completely.
sed -e "/^PURGATORY_EXTRA_CFLAGS =/s/=/+=/" -i Makefile.in || die
if [[ "${PV}" == 9999 ]] ; then
eautoreconf
else
elibtoolize
fi
}
src_configure() {
local myeconfargs=(
$(use_with booke)
$(use_with lzma)
$(use_with xen)
$(use_with zlib)
)
econf "${myeconfargs[@]}"
}
src_compile() {
# Respect CFLAGS for purgatory.
# purgatory/Makefile uses PURGATORY_EXTRA_CFLAGS variable.
# -mfunction-return=thunk and -mindirect-branch=thunk conflict with
# -mcmodel=large which is added by build system.
# Replace them with -mfunction-return=thunk-inline and -mindirect-branch=thunk-inline.
local flag flags=()
for flag in ${CFLAGS}; do
[[ ${flag} == -mfunction-return=thunk ]] && flag="-mfunction-return=thunk-inline"
[[ ${flag} == -mindirect-branch=thunk ]] && flag="-mindirect-branch=thunk-inline"
flags+=("${flag}")
done
local -x PURGATORY_EXTRA_CFLAGS="${flags[*]}"
default
}
src_install() {
default
dodoc "${FILESDIR}"/README.Gentoo
newinitd "${FILESDIR}"/kexec-r2.init kexec
newconfd "${FILESDIR}"/kexec.conf-2.0.4 kexec
insinto /etc
doins "${FILESDIR}"/kexec.conf
insinto /etc/kernel/postinst.d
doins "${FILESDIR}"/90_kexec
systemd_dounit "${FILESDIR}"/kexec.service
}
pkg_postinst() {
if systemd_is_booted || has_version sys-apps/systemd; then
elog "For systemd support the new config file is"
elog " /etc/kexec.conf"
elog "Please adopt it to your needs as there is no autoconfig anymore"
fi
local n_root_args=$(grep -o -- '\<root=' /proc/cmdline 2>/dev/null | wc -l)
local has_rootpart_set=no
if [[ -f "${EROOT}/etc/conf.d/kexec" ]]; then
if grep -q -E -- '^ROOTPART=' "${EROOT}/etc/conf.d/kexec" 2>/dev/null; then
has_rootpart_set=yes
fi
fi
if [[ ${n_root_args} > 1 && "${has_rootpart_set}" == "no" ]]; then
ewarn "WARNING: Multiple root arguments (root=) on kernel command-line detected!"
ewarn "This was probably caused by a previous version of ${PN}."
ewarn "Please reboot system once *without* kexec to avoid boot problems"
ewarn "in case running system and initramfs do not agree on detected"
ewarn "root device name!"
fi
}
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