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# Copyright 2021-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit flag-o-matic toolchain-funcs
DESCRIPTION="The libxdp library and various tools for use with XDP"
HOMEPAGE="https://github.com/xdp-project/xdp-tools"
SRC_URI="https://github.com/xdp-project/${PN}/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
LICENSE="GPL-2 LGPL-2.1 BSD-2"
SLOT="0"
KEYWORDS="amd64 ~arm ~arm64 ~riscv ~x86"
IUSE="+tools"
DEPEND="
dev-libs/libbpf:=
dev-util/bpftool
net-libs/libpcap
sys-libs/zlib
virtual/libelf
"
RDEPEND="${DEPEND}"
BDEPEND="
sys-apps/grep[pcre]
>=sys-devel/clang-11.0.0
"
# Not prebuilt -- we build them -- but they're not ordinary ELF objects either.
QA_PREBUILT="usr/lib/bpf/*.o"
MAKEOPTS+=" V=1"
PATCHES=(
"${FILESDIR}"/1.4.0-no-Werror.patch
"${FILESDIR}"/1.4.0-toolchain.patch
)
src_configure() {
export CC="$(tc-getCC)"
export LD="$(tc-getLD)"
export PREFIX="${EPREFIX}/usr"
export LIBDIR="${PREFIX}/$(get_libdir)"
export BPF_OBJECT_DIR="${PREFIX}/lib/bpf"
export PRODUCTION=1
export DYNAMIC_LIBXDP=1
export FORCE_SYSTEM_LIBBPF=1
# bug 861587
filter-lto
default
}
src_test() { :; }
src_install() {
default
# To remove the scripts/testing files that are installed.
rm -r "${ED}/usr/share/xdp-tools" || die
# We can't control static archive generation yet.
rm "${ED}/usr/$(get_libdir)/libxdp.a" || die
use tools || { rm "${ED}/usr/sbin"/* || die; }
# These are ELF objects but BPF ones.
dostrip -x /usr/lib/bpf
}
pkg_postinst() {
elog
elog "Many BPF utilities need access to a mounted bpffs virtual file system."
elog "Either mount it manually like this:"
elog
elog " mount bpffs /sys/fs/bpf -t bpf -o nosuid,nodev,noexec,relatime,mode=700"
elog
elog "or add the following line to your /etc/fstab to always mount it at boot time:"
elog
elog " bpffs /sys/fs/bpf bpf nosuid,nodev,noexec,relatime,mode=700 0 0"
elog
elog "You can verify that bpffs is mounted with:"
elog
elog " mount | grep /sys/fs/bpf"
elog
}
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