f2f88f3e7a
I want to start using LLVM component libraries in libomptarget to stop duplicating implementations already available in LLVM (e.g. LLVMObject, LLVMSupport, etc.). Without relying on LLVM in all libomptarget builds one has to provide fallback implementation for each used LLVM feature. This is an attempt to stop supporting out-of-llvm-tree builds of libomptarget. I understand that I may need to revert this, if this affects downstream projects in a bad way. Differential Revision: https://reviews.llvm.org/D101509
103 lines
3.7 KiB
CMake
103 lines
3.7 KiB
CMake
cmake_minimum_required(VERSION 3.13.4)
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# Add cmake directory to search for custom cmake functions.
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set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH})
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# llvm/runtimes/ will set OPENMP_STANDALONE_BUILD.
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if (OPENMP_STANDALONE_BUILD OR "${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_SOURCE_DIR}")
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set(OPENMP_STANDALONE_BUILD TRUE)
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project(openmp C CXX)
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# CMAKE_BUILD_TYPE was not set, default to Release.
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if (NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif()
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# Group common settings.
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set(OPENMP_ENABLE_WERROR FALSE CACHE BOOL
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"Enable -Werror flags to turn warnings into errors for supporting compilers.")
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set(OPENMP_LIBDIR_SUFFIX "" CACHE STRING
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"Suffix of lib installation directory, e.g. 64 => lib64")
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# Do not use OPENMP_LIBDIR_SUFFIX directly, use OPENMP_INSTALL_LIBDIR.
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set(OPENMP_INSTALL_LIBDIR "lib${OPENMP_LIBDIR_SUFFIX}")
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# Group test settings.
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set(OPENMP_TEST_C_COMPILER ${CMAKE_C_COMPILER} CACHE STRING
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"C compiler to use for testing OpenMP runtime libraries.")
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set(OPENMP_TEST_CXX_COMPILER ${CMAKE_CXX_COMPILER} CACHE STRING
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"C++ compiler to use for testing OpenMP runtime libraries.")
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set(OPENMP_LLVM_TOOLS_DIR "" CACHE PATH "Path to LLVM tools for testing.")
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else()
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set(OPENMP_ENABLE_WERROR ${LLVM_ENABLE_WERROR})
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# If building in tree, we honor the same install suffix LLVM uses.
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set(OPENMP_INSTALL_LIBDIR "lib${LLVM_LIBDIR_SUFFIX}")
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if (NOT MSVC)
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set(OPENMP_TEST_C_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang)
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set(OPENMP_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++)
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else()
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set(OPENMP_TEST_C_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang.exe)
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set(OPENMP_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++.exe)
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endif()
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endif()
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# Check and set up common compiler flags.
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include(config-ix)
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include(HandleOpenMPOptions)
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# Set up testing infrastructure.
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include(OpenMPTesting)
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set(OPENMP_TEST_FLAGS "" CACHE STRING
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"Extra compiler flags to send to the test compiler.")
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set(OPENMP_TEST_OPENMP_FLAGS ${OPENMP_TEST_COMPILER_OPENMP_FLAGS} CACHE STRING
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"OpenMP compiler flag to use for testing OpenMP runtime libraries.")
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set(ENABLE_LIBOMPTARGET ON)
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# Currently libomptarget cannot be compiled on Windows or MacOS X.
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# Since the device plugins are only supported on Linux anyway,
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# there is no point in trying to compile libomptarget on other OSes.
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if (APPLE OR WIN32 OR NOT OPENMP_HAVE_STD_CPP14_FLAG)
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set(ENABLE_LIBOMPTARGET OFF)
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endif()
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option(OPENMP_ENABLE_LIBOMPTARGET "Enable building libomptarget for offloading."
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${ENABLE_LIBOMPTARGET})
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option(OPENMP_ENABLE_LIBOMPTARGET_PROFILING "Enable time profiling for libomptarget."
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${ENABLE_LIBOMPTARGET})
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option(OPENMP_ENABLE_LIBOMP_PROFILING "Enable time profiling for libomp." OFF)
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# Build host runtime library, after LIBOMPTARGET variables are set since they are needed
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# to enable time profiling support in the OpenMP runtime.
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add_subdirectory(runtime)
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if (OPENMP_ENABLE_LIBOMPTARGET)
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# Check that the library can actually be built.
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if (APPLE OR WIN32)
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message(FATAL_ERROR "libomptarget cannot be built on Windows and MacOS X!")
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elseif (NOT OPENMP_HAVE_STD_CPP14_FLAG)
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message(FATAL_ERROR "Host compiler must support C++14 to build libomptarget!")
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endif()
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add_subdirectory(libomptarget)
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endif()
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set(ENABLE_OMPT_TOOLS ON)
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# Currently tools are not tested well on Windows or MacOS X.
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if (APPLE OR WIN32)
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set(ENABLE_OMPT_TOOLS OFF)
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endif()
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option(OPENMP_ENABLE_OMPT_TOOLS "Enable building ompt based tools for OpenMP."
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${ENABLE_OMPT_TOOLS})
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if (OPENMP_ENABLE_OMPT_TOOLS)
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add_subdirectory(tools)
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endif()
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# Build documentation
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add_subdirectory(docs)
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# Now that we have seen all testsuites, create the check-openmp target.
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construct_check_openmp_target()
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