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# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit cmake linux-mod
DESCRIPTION="Kernel module for dev-util/sysdig"
HOMEPAGE="https://sysdig.com/"
# The driver is part of falcosecurity/libs, but for versioning reasons we cannot (yet)
# use semver-released packages; instead we pull in a commit that is used and known
# to work with sysdig, see sysdig/cmake/modules/falcosecurity-libs.cmake for details.
# For now the commit here and the one referenced in sysdig should be in sync.
LIBS_COMMIT="e5c53d648f3c4694385bbe488e7d47eaa36c229a"
SRC_URI="https://github.com/falcosecurity/libs/archive/${LIBS_COMMIT}.tar.gz -> falcosecurity-libs-${LIBS_COMMIT}.tar.gz"
S="${WORKDIR}/libs-${LIBS_COMMIT}"
LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="~amd64 ~arm64 ~x86"
RDEPEND="!<dev-util/sysdig-${PV}[modules]"
CONFIG_CHECK="HAVE_SYSCALL_TRACEPOINTS ~TRACEPOINTS"
PATCHES=(
"${FILESDIR}"/${PV}-fix-kmod-build-on-5.18+.patch
"${FILESDIR}"/${PV}-fix-kmod-build-on-6.2+.patch
)
src_configure() {
local mycmakeargs=(
# we will use linux-mod, so just pretend to use bundled deps
# in order to make it through the cmake setup.
-DUSE_BUNDLED_DEPS=ON
-DCREATE_TEST_TARGETS=OFF
-DDRIVER_VERSION=${LIBS_COMMIT}
)
cmake_src_configure
# setup linux-mod ugliness
MODULE_NAMES="scap(extra:${BUILD_DIR}/driver/src:)"
BUILD_PARAMS='KERNELDIR="${KERNEL_DIR}"'
# work with clang-built kernels (#816024)
if linux_chkconfig_present CC_IS_CLANG; then
BUILD_PARAMS+=' CC=${CHOST}-clang'
if linux_chkconfig_present LD_IS_LLD; then
BUILD_PARAMS+=' LD=ld.lld'
if linux_chkconfig_present LTO_CLANG_THIN; then
# kernel enables cache by default leading to sandbox violations
BUILD_PARAMS+=' ldflags-y=--thinlto-cache-dir= LDFLAGS_MODULE=--thinlto-cache-dir='
fi
fi
fi
BUILD_TARGETS="all"
}
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