# Copyright 1999-2022 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 EAPI=7 CMAKE_ECLASS=cmake PYTHON_COMPAT=( python3_{8..10} ) inherit cmake-multilib linux-info llvm llvm.org python-any-r1 DESCRIPTION="OpenMP runtime library for LLVM/clang compiler" HOMEPAGE="https://openmp.llvm.org" LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )" SLOT="0" KEYWORDS="amd64 arm arm64 ~ppc ppc64 ~riscv x86 ~amd64-linux ~x64-macos" IUSE="cuda debug hwloc offload ompt test llvm_targets_AMDGPU llvm_targets_NVPTX" # CUDA works only with the x86_64 ABI REQUIRED_USE=" cuda? ( llvm_targets_NVPTX ) offload? ( cuda? ( abi_x86_64 ) )" RESTRICT="!test? ( test )" RDEPEND=" hwloc? ( >=sys-apps/hwloc-2.5:0=[${MULTILIB_USEDEP}] ) offload? ( virtual/libelf:=[${MULTILIB_USEDEP}] dev-libs/libffi:=[${MULTILIB_USEDEP}] ~sys-devel/llvm-${PV}[${MULTILIB_USEDEP}] cuda? ( dev-util/nvidia-cuda-toolkit:= ) )" # tests: # - dev-python/lit provides the test runner # - sys-devel/llvm provide test utils (e.g. FileCheck) # - sys-devel/clang provides the compiler to run tests DEPEND="${RDEPEND}" BDEPEND="dev-lang/perl offload? ( llvm_targets_AMDGPU? ( sys-devel/clang ) llvm_targets_NVPTX? ( sys-devel/clang ) virtual/pkgconfig ) test? ( $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') sys-devel/clang )" LLVM_COMPONENTS=( openmp llvm/include ) LLVM_PATCHSET=${PV/_/-}-r2 llvm.org_set_globals python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" } kernel_pds_check() { if use kernel_linux && kernel_is -lt 4 15 && kernel_is -ge 4 13; then local CONFIG_CHECK="~!SCHED_PDS" local ERROR_SCHED_PDS="\ PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels >= 4.13-pf11 < 4.14-pf9) do not implement sched_yield() call which may result in horrible performance problems with libomp. If you are using one of the specified kernel versions, you may want to disable the PDS scheduler." check_extra_config fi } pkg_pretend() { kernel_pds_check } pkg_setup() { use offload && LLVM_MAX_SLOT=${PV%%.*} llvm_pkg_setup use test && python-any-r1_pkg_setup } multilib_src_configure() { # LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844 use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG" local libdir="$(get_libdir)" local mycmakeargs=( -DOPENMP_LIBDIR_SUFFIX="${libdir#lib}" -DLIBOMP_USE_HWLOC=$(usex hwloc) -DLIBOMP_OMPT_SUPPORT=$(usex ompt) -DOPENMP_ENABLE_LIBOMPTARGET=$(usex offload) # do not install libgomp.so & libiomp5.so aliases -DLIBOMP_INSTALL_ALIASES=OFF # disable unnecessary hack copying stuff back to srcdir -DLIBOMP_COPY_EXPORTS=OFF ) if use offload && has "${CHOST%%-*}" aarch64 powerpc64le x86_64; then mycmakeargs+=( -DCMAKE_DISABLE_FIND_PACKAGE_CUDA=$(usex !cuda) -DLIBOMPTARGET_BUILD_AMDGCN_BCLIB=$(usex llvm_targets_AMDGPU) -DLIBOMPTARGET_BUILD_NVPTX_BCLIB=$(usex llvm_targets_NVPTX) # a cheap hack to force clang -DLIBOMPTARGET_NVPTX_CUDA_COMPILER="$(type -P "${CHOST}-clang")" # upstream defaults to looking for it in clang dir # this fails when ccache is being used -DLIBOMPTARGET_NVPTX_BC_LINKER="$(type -P llvm-link)" ) else mycmakeargs+=( -DCMAKE_DISABLE_FIND_PACKAGE_CUDA=ON -DLIBOMPTARGET_BUILD_AMDGCN_BCLIB=OFF -DLIBOMPTARGET_BUILD_NVPTX_BCLIB=OFF ) fi use test && mycmakeargs+=( # this project does not use standard LLVM cmake macros -DOPENMP_LLVM_LIT_EXECUTABLE="${EPREFIX}/usr/bin/lit" -DOPENMP_LIT_ARGS="$(get_lit_flags)" -DOPENMP_TEST_C_COMPILER="$(type -P "${CHOST}-clang")" -DOPENMP_TEST_CXX_COMPILER="$(type -P "${CHOST}-clang++")" ) addpredict /dev/nvidiactl cmake_src_configure } multilib_src_test() { # respect TMPDIR! local -x LIT_PRESERVES_TMP=1 cmake_build check-libomp }