87 lines
3.5 KiB
CMake
87 lines
3.5 KiB
CMake
##===----------------------------------------------------------------------===##
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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##===----------------------------------------------------------------------===##
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#
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# Build a plugin for a CUDA machine if available.
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#
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##===----------------------------------------------------------------------===##
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set(LIBOMPTARGET_BUILD_CUDA_PLUGIN TRUE CACHE BOOL
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"Whether to build CUDA plugin")
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if (NOT LIBOMPTARGET_BUILD_CUDA_PLUGIN)
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libomptarget_say("Not building CUDA NextGen offloading plugin: LIBOMPTARGET_BUILD_CUDA_PLUGIN is false")
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return()
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endif()
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if (NOT (CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64)|(ppc64le)|(aarch64)$" AND CMAKE_SYSTEM_NAME MATCHES "Linux"))
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libomptarget_say("Not building CUDA NextGen offloading plugin: only support CUDA in Linux x86_64, ppc64le, or aarch64 hosts.")
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return()
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endif()
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libomptarget_say("Building CUDA NextGen offloading plugin.")
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set(LIBOMPTARGET_DLOPEN_LIBCUDA OFF)
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option(LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA "Build with dlopened libcuda" ${LIBOMPTARGET_DLOPEN_LIBCUDA})
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add_llvm_library(omptarget.rtl.cuda SHARED
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src/rtl.cpp
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LINK_COMPONENTS
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Support
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Object
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LINK_LIBS PRIVATE
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PluginCommon
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${OPENMP_PTHREAD_LIB}
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NO_INSTALL_RPATH
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)
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if ((OMPT_TARGET_DEFAULT) AND (LIBOMPTARGET_OMPT_SUPPORT))
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target_link_libraries(omptarget.rtl.cuda PRIVATE OMPT)
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endif()
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if (LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
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target_link_libraries(omptarget.rtl.cuda PRIVATE
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"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports,-z,defs")
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endif()
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if(LIBOMPTARGET_DEP_CUDA_FOUND AND NOT LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA)
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libomptarget_say("Building CUDA plugin linked against libcuda")
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target_link_libraries(omptarget.rtl.cuda PRIVATE CUDA::cuda_driver)
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else()
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libomptarget_say("Building CUDA plugin for dlopened libcuda")
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target_include_directories(omptarget.rtl.cuda PRIVATE dynamic_cuda)
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target_sources(omptarget.rtl.cuda PRIVATE dynamic_cuda/cuda.cpp)
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endif()
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# Define debug prefix. TODO: This should be automatized in the Debug.h but it
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# requires changing the original plugins.
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target_compile_definitions(omptarget.rtl.cuda PRIVATE TARGET_NAME="CUDA")
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target_compile_definitions(omptarget.rtl.cuda PRIVATE DEBUG_PREFIX="TARGET CUDA RTL")
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target_include_directories(omptarget.rtl.cuda PRIVATE ${LIBOMPTARGET_INCLUDE_DIR})
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# Configure testing for the CUDA plugin. We will build tests if we could a
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# functional NVIDIA GPU on the system, or if manually specifies by the user.
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option(LIBOMPTARGET_FORCE_NVIDIA_TESTS "Build NVIDIA libomptarget tests" OFF)
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if (LIBOMPTARGET_FOUND_NVIDIA_GPU OR LIBOMPTARGET_FORCE_NVIDIA_TESTS)
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libomptarget_say("Enable tests using CUDA plugin")
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set(LIBOMPTARGET_SYSTEM_TARGETS
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"${LIBOMPTARGET_SYSTEM_TARGETS} nvptx64-nvidia-cuda nvptx64-nvidia-cuda-LTO" PARENT_SCOPE)
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list(APPEND LIBOMPTARGET_TESTED_PLUGINS "omptarget.rtl.cuda")
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set(LIBOMPTARGET_TESTED_PLUGINS "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
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else()
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libomptarget_say("Not generating NVIDIA tests, no supported devices detected."
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" Use 'LIBOMPTARGET_FORCE_NVIDIA_TESTS' to override.")
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endif()
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# Install plugin under the lib destination folder.
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install(TARGETS omptarget.rtl.cuda LIBRARY DESTINATION "${OPENMP_INSTALL_LIBDIR}")
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set_target_properties(omptarget.rtl.cuda PROPERTIES
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INSTALL_RPATH "$ORIGIN" BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/.."
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CXX_VISIBILITY_PRESET protected)
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