forked from OSchip/llvm-project
81 lines
3.4 KiB
CMake
81 lines
3.4 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 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)$" AND CMAKE_SYSTEM_NAME MATCHES "Linux"))
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libomptarget_say("Not building CUDA offloading plugin: only support CUDA in Linux x86_64, ppc64le, or aarch64 hosts.")
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return()
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elseif (NOT LIBOMPTARGET_DEP_LIBELF_FOUND)
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libomptarget_say("Not building CUDA offloading plugin: libelf dependency not found.")
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return()
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endif()
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libomptarget_say("Building CUDA offloading plugin.")
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# Define the suffix for the runtime messaging dumps.
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add_definitions(-DTARGET_NAME=CUDA)
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include_directories(
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${LIBOMPTARGET_DEP_LIBELF_INCLUDE_DIRS}
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)
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set(LIBOMPTARGET_DLOPEN_LIBCUDA OFF)
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option(LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA "Build with dlopened libcuda" ${LIBOMPTARGET_DLOPEN_LIBCUDA})
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set(LIBOMPTARGET_CAN_LINK_LIBCUDA FALSE)
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if (LIBOMPTARGET_DEP_CUDA_FOUND AND LIBOMPTARGET_DEP_CUDA_DRIVER_FOUND)
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set(LIBOMPTARGET_CAN_LINK_LIBCUDA TRUE)
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endif()
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if (LIBOMPTARGET_CAN_LINK_LIBCUDA AND NOT LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA)
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libomptarget_say("Building CUDA plugin linked against libcuda")
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include_directories(${LIBOMPTARGET_DEP_CUDA_INCLUDE_DIRS})
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add_library(omptarget.rtl.cuda SHARED src/rtl.cpp)
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set (LIBOMPTARGET_DEP_LIBRARIES ${LIBOMPTARGET_DEP_CUDA_DRIVER_LIBRARIES})
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else()
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libomptarget_say("Building CUDA plugin for dlopened libcuda")
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include_directories(dynamic_cuda)
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add_library(omptarget.rtl.cuda SHARED src/rtl.cpp dynamic_cuda/cuda.cpp)
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set (LIBOMPTARGET_DEP_LIBRARIES ${CMAKE_DL_LIBS})
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endif()
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add_dependencies(omptarget.rtl.cuda omptarget.devicertl.nvptx)
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# Install plugin under the lib destination folder.
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install(TARGETS omptarget.rtl.cuda LIBRARY DESTINATION "${OPENMP_INSTALL_LIBDIR}")
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target_link_libraries(omptarget.rtl.cuda
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elf_common
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MemoryManager
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${LIBOMPTARGET_DEP_LIBRARIES}
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${LIBOMPTARGET_DEP_LIBELF_LIBRARIES}
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${OPENMP_PTHREAD_LIB}
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"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports"
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"-Wl,-z,defs")
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# Report to the parent scope that we are building a plugin for CUDA.
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# This controls whether tests are run for the nvptx offloading target
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# Run them if libcuda is available, or if the user explicitly asked for dlopen
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# Otherwise this plugin is being built speculatively and there may be no cuda available
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if (LIBOMPTARGET_CAN_LINK_LIBCUDA OR LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA)
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libomptarget_say("Enable tests using CUDA plugin")
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set(LIBOMPTARGET_SYSTEM_TARGETS "${LIBOMPTARGET_SYSTEM_TARGETS} nvptx64-nvidia-cuda nvptx64-nvidia-cuda-oldDriver" PARENT_SCOPE)
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list(APPEND LIBOMPTARGET_TESTED_PLUGINS "omptarget.rtl.cuda")
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set(LIBOMPTARGET_TESTED_PLUGINS "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
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else()
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libomptarget_say("Disabling tests using CUDA plugin as cuda may not be available")
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endif()
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