mirror of
https://github.com/Kitware/CMake.git
synced 2026-01-06 05:40:54 -06:00
4eaf1ef425
We don't distinguish real/virtual architectures during compiler detection. If the user passes -DCMAKE_CUDA_ARCHITECTURES="70-virtual" we'll test with only the real architecture. If it works "architectures" will end up as "70". We check equality using strings, so this fails and we incorrectly throw an error. Fix this by comparing against CMAKE_CUDA_ARCHITECTURES with the specifiers stripped. We need to deduplicate tested_architectures for the same reason in case the user specified something like "70-real;70-virtual".
389 lines
17 KiB
CMake
389 lines
17 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
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include(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake)
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if( NOT ( ("${CMAKE_GENERATOR}" MATCHES "Make") OR
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("${CMAKE_GENERATOR}" MATCHES "Ninja") OR
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("${CMAKE_GENERATOR}" MATCHES "Visual Studio (1|[9][0-9])") ) )
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message(FATAL_ERROR "CUDA language not currently supported by \"${CMAKE_GENERATOR}\" generator")
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endif()
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if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
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else()
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if(NOT CMAKE_CUDA_COMPILER)
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set(CMAKE_CUDA_COMPILER_INIT NOTFOUND)
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# prefer the environment variable CUDACXX
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if(NOT $ENV{CUDACXX} STREQUAL "")
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get_filename_component(CMAKE_CUDA_COMPILER_INIT $ENV{CUDACXX} PROGRAM PROGRAM_ARGS CMAKE_CUDA_FLAGS_ENV_INIT)
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if(CMAKE_CUDA_FLAGS_ENV_INIT)
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set(CMAKE_CUDA_COMPILER_ARG1 "${CMAKE_CUDA_FLAGS_ENV_INIT}" CACHE STRING "First argument to CXX compiler")
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endif()
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if(NOT EXISTS ${CMAKE_CUDA_COMPILER_INIT})
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message(FATAL_ERROR "Could not find compiler set in environment variable CUDACXX:\n$ENV{CUDACXX}.\n${CMAKE_CUDA_COMPILER_INIT}")
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endif()
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endif()
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# finally list compilers to try
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if(NOT CMAKE_CUDA_COMPILER_INIT)
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set(CMAKE_CUDA_COMPILER_LIST nvcc)
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endif()
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_cmake_find_compiler(CUDA)
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else()
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_cmake_find_compiler_path(CUDA)
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endif()
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mark_as_advanced(CMAKE_CUDA_COMPILER)
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endif()
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#Allow the user to specify a host compiler
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if(NOT $ENV{CUDAHOSTCXX} STREQUAL "")
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get_filename_component(CMAKE_CUDA_HOST_COMPILER $ENV{CUDAHOSTCXX} PROGRAM)
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if(NOT EXISTS ${CMAKE_CUDA_HOST_COMPILER})
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message(FATAL_ERROR "Could not find compiler set in environment variable CUDAHOSTCXX:\n$ENV{CUDAHOSTCXX}.\n${CMAKE_CUDA_HOST_COMPILER}")
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endif()
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endif()
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# Build a small source file to identify the compiler.
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if(NOT CMAKE_CUDA_COMPILER_ID_RUN)
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set(CMAKE_CUDA_COMPILER_ID_RUN 1)
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# Try to identify the compiler.
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set(CMAKE_CUDA_COMPILER_ID)
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set(CMAKE_CUDA_PLATFORM_ID)
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file(READ ${CMAKE_ROOT}/Modules/CMakePlatformId.h.in
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CMAKE_CUDA_COMPILER_ID_PLATFORM_CONTENT)
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list(APPEND CMAKE_CUDA_COMPILER_ID_VENDORS NVIDIA Clang)
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set(CMAKE_CUDA_COMPILER_ID_VENDOR_REGEX_NVIDIA "nvcc: NVIDIA \\(R\\) Cuda compiler driver")
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set(CMAKE_CUDA_COMPILER_ID_VENDOR_REGEX_Clang "(clang version)")
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set(CMAKE_CXX_COMPILER_ID_TOOL_MATCH_REGEX "\nLd[^\n]*(\n[ \t]+[^\n]*)*\n[ \t]+([^ \t\r\n]+)[^\r\n]*-o[^\r\n]*CompilerIdCUDA/(\\./)?(CompilerIdCUDA.xctest/)?CompilerIdCUDA[ \t\n\\\"]")
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set(CMAKE_CXX_COMPILER_ID_TOOL_MATCH_INDEX 2)
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set(CMAKE_CUDA_COMPILER_ID_FLAGS_ALWAYS "-v")
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# nvcc
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set(nvcc_test_flags "--keep --keep-dir tmp")
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if(CMAKE_CUDA_HOST_COMPILER)
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string(APPEND nvcc_test_flags " -ccbin=${CMAKE_CUDA_HOST_COMPILER}")
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endif()
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# Clang
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if(CMAKE_CROSSCOMPILING)
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# Need to pass the host target and include directories if we're crosscompiling.
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set(clang_test_flags "--sysroot=\"${CMAKE_SYSROOT}\" --target=${CMAKE_CUDA_COMPILER_TARGET}")
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else()
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set(clang_test_flags)
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endif()
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# First try with the user-specified architectures.
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if(CMAKE_CUDA_ARCHITECTURES)
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set(clang_archs "${clang_test_flags}")
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set(nvcc_archs "${nvcc_test_flags}")
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foreach(arch ${CMAKE_CUDA_ARCHITECTURES})
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# Strip specifiers as PTX vs binary doesn't matter.
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string(REGEX MATCH "[0-9]+" arch_name "${arch}")
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string(APPEND clang_archs " --cuda-gpu-arch=sm_${arch_name}")
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string(APPEND nvcc_archs " -gencode=arch=compute_${arch_name},code=sm_${arch_name}")
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list(APPEND tested_architectures "${arch_name}")
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endforeach()
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list(APPEND CMAKE_CUDA_COMPILER_ID_TEST_FLAGS_FIRST "${clang_archs}")
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list(APPEND CMAKE_CUDA_COMPILER_ID_TEST_FLAGS_FIRST "${nvcc_archs}")
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endif()
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# Fallback default NVCC flags.
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list(APPEND CMAKE_CUDA_COMPILER_ID_TEST_FLAGS_FIRST ${nvcc_test_flags})
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# Clang doesn't automatically select an architecture supported by the SDK.
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# Try in reverse order of deprecation with the most recent at front (i.e. the most likely to work for new setups).
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foreach(arch "20" "30" "52")
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list(APPEND CMAKE_CUDA_COMPILER_ID_TEST_FLAGS_FIRST "${clang_test_flags} --cuda-gpu-arch=sm_${arch}")
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endforeach()
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# Finally also try the default.
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list(APPEND CMAKE_CUDA_COMPILER_ID_TEST_FLAGS_FIRST "${clang_test_flags}")
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include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
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CMAKE_DETERMINE_COMPILER_ID(CUDA CUDAFLAGS CMakeCUDACompilerId.cu)
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_cmake_find_compiler_sysroot(CUDA)
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endif()
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set(_CMAKE_PROCESSING_LANGUAGE "CUDA")
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include(CMakeFindBinUtils)
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include(Compiler/${CMAKE_CUDA_COMPILER_ID}-FindBinUtils OPTIONAL)
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unset(_CMAKE_PROCESSING_LANGUAGE)
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if(MSVC_CUDA_ARCHITECTURE_ID)
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set(SET_MSVC_CUDA_ARCHITECTURE_ID
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"set(MSVC_CUDA_ARCHITECTURE_ID ${MSVC_CUDA_ARCHITECTURE_ID})")
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endif()
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if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
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set(CMAKE_CUDA_HOST_LINK_LAUNCHER "${CMAKE_LINKER}")
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set(CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES "")
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set(CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES "")
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set(CMAKE_CUDA_HOST_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES "")
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# We do not currently detect CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES but we
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# do need to detect CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT from the compiler by
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# looking at which cudart library exists in the implicit link libraries passed
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# to the host linker.
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if(CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT MATCHES "link\\.exe [^\n]*cudart_static\\.lib")
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set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT "STATIC")
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elseif(CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT MATCHES "link\\.exe [^\n]*cudart\\.lib")
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set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT "SHARED")
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else()
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set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT "NONE")
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endif()
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set(_SET_CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT
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"set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT \"${CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT}\")")
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elseif(CMAKE_CUDA_COMPILER_ID STREQUAL "Clang")
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if(NOT CMAKE_CUDA_ARCHITECTURES)
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# Find the architecture that we successfully compiled using and set it as the default.
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string(REGEX MATCH "-target-cpu sm_([0-9]+)" dont_care "${CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT}")
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set(detected_architecture "${CMAKE_MATCH_1}")
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else()
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string(REGEX MATCHALL "-target-cpu sm_([0-9]+)" target_cpus "${CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT}")
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foreach(cpu ${target_cpus})
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string(REGEX MATCH "-target-cpu sm_([0-9]+)" dont_care "${cpu}")
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list(APPEND architectures "${CMAKE_MATCH_1}")
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endforeach()
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endif()
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# Clang does not add any CUDA SDK libraries or directories when invoking the host linker.
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# Add the CUDA toolkit library directory ourselves so that linking works.
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# The CUDA runtime libraries are handled elsewhere by CMAKE_CUDA_RUNTIME_LIBRARY.
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include(Internal/CUDAToolkit)
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set(CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES "${CUDAToolkit_INCLUDE_DIR}")
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set(CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES "${CUDAToolkit_LIBRARY_DIR}")
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set(CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES "")
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set(CMAKE_CUDA_HOST_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES "")
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elseif(CMAKE_CUDA_COMPILER_ID STREQUAL "NVIDIA")
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set(_nvcc_log "")
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string(REPLACE "\r" "" _nvcc_output_orig "${CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT}")
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if(_nvcc_output_orig MATCHES "#\\\$ +PATH= *([^\n]*)\n")
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set(_nvcc_path "${CMAKE_MATCH_1}")
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string(APPEND _nvcc_log " found 'PATH=' string: [${_nvcc_path}]\n")
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string(REPLACE ":" ";" _nvcc_path "${_nvcc_path}")
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else()
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set(_nvcc_path "")
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string(REPLACE "\n" "\n " _nvcc_output_log "\n${_nvcc_output_orig}")
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string(APPEND _nvcc_log " no 'PATH=' string found in nvcc output:${_nvcc_output_log}\n")
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endif()
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if(_nvcc_output_orig MATCHES "#\\\$ +LIBRARIES= *([^\n]*)\n")
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set(_nvcc_libraries "${CMAKE_MATCH_1}")
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string(APPEND _nvcc_log " found 'LIBRARIES=' string: [${_nvcc_libraries}]\n")
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else()
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set(_nvcc_libraries "")
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string(REPLACE "\n" "\n " _nvcc_output_log "\n${_nvcc_output_orig}")
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string(APPEND _nvcc_log " no 'LIBRARIES=' string found in nvcc output:${_nvcc_output_log}\n")
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endif()
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set(_nvcc_link_line "")
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if(_nvcc_libraries)
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# Remove variable assignments.
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string(REGEX REPLACE "#\\\$ *[^= ]+=[^\n]*\n" "" _nvcc_output "${_nvcc_output_orig}")
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# Encode [] characters that break list expansion.
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string(REPLACE "[" "{==={" _nvcc_output "${_nvcc_output}")
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string(REPLACE "]" "}===}" _nvcc_output "${_nvcc_output}")
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# Split lines.
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string(REGEX REPLACE "\n+(#\\\$ )?" ";" _nvcc_output "${_nvcc_output}")
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foreach(line IN LISTS _nvcc_output)
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set(_nvcc_output_line "${line}")
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string(REPLACE "{==={" "[" _nvcc_output_line "${_nvcc_output_line}")
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string(REPLACE "}===}" "]" _nvcc_output_line "${_nvcc_output_line}")
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string(APPEND _nvcc_log " considering line: [${_nvcc_output_line}]\n")
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if("${_nvcc_output_line}" MATCHES "^ *nvlink")
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string(APPEND _nvcc_log " ignoring nvlink line\n")
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elseif(_nvcc_libraries)
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if("${_nvcc_output_line}" MATCHES "(@\"?tmp/a\\.exe\\.res\"?)")
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set(_nvcc_link_res_arg "${CMAKE_MATCH_1}")
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set(_nvcc_link_res "${CMAKE_PLATFORM_INFO_DIR}/CompilerIdCUDA/tmp/a.exe.res")
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if(EXISTS "${_nvcc_link_res}")
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file(READ "${_nvcc_link_res}" _nvcc_link_res_content)
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string(REPLACE "${_nvcc_link_res_arg}" "${_nvcc_link_res_content}" _nvcc_output_line "${_nvcc_output_line}")
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endif()
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endif()
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string(FIND "${_nvcc_output_line}" "${_nvcc_libraries}" _nvcc_libraries_pos)
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if(NOT _nvcc_libraries_pos EQUAL -1)
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set(_nvcc_link_line "${_nvcc_output_line}")
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string(APPEND _nvcc_log " extracted link line: [${_nvcc_link_line}]\n")
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endif()
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endif()
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endforeach()
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endif()
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if(_nvcc_link_line)
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if("x${CMAKE_CUDA_SIMULATE_ID}" STREQUAL "xMSVC")
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set(CMAKE_CUDA_HOST_LINK_LAUNCHER "${CMAKE_LINKER}")
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else()
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#extract the compiler that is being used for linking
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separate_arguments(_nvcc_link_line_args UNIX_COMMAND "${_nvcc_link_line}")
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list(GET _nvcc_link_line_args 0 _nvcc_host_link_launcher)
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if(IS_ABSOLUTE "${_nvcc_host_link_launcher}")
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string(APPEND _nvcc_log " extracted link launcher absolute path: [${_nvcc_host_link_launcher}]\n")
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set(CMAKE_CUDA_HOST_LINK_LAUNCHER "${_nvcc_host_link_launcher}")
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else()
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string(APPEND _nvcc_log " extracted link launcher name: [${_nvcc_host_link_launcher}]\n")
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find_program(_nvcc_find_host_link_launcher
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NAMES ${_nvcc_host_link_launcher}
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PATHS ${_nvcc_path} NO_DEFAULT_PATH)
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find_program(_nvcc_find_host_link_launcher
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NAMES ${_nvcc_host_link_launcher})
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if(_nvcc_find_host_link_launcher)
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string(APPEND _nvcc_log " found link launcher absolute path: [${_nvcc_find_host_link_launcher}]\n")
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set(CMAKE_CUDA_HOST_LINK_LAUNCHER "${_nvcc_find_host_link_launcher}")
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else()
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string(APPEND _nvcc_log " could not find link launcher absolute path\n")
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set(CMAKE_CUDA_HOST_LINK_LAUNCHER "${_nvcc_host_link_launcher}")
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endif()
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unset(_nvcc_find_host_link_launcher CACHE)
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endif()
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endif()
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#prefix the line with cuda-fake-ld so that implicit link info believes it is
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#a link line
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set(_nvcc_link_line "cuda-fake-ld ${_nvcc_link_line}")
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CMAKE_PARSE_IMPLICIT_LINK_INFO("${_nvcc_link_line}"
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CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES
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CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES
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CMAKE_CUDA_HOST_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES
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log
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"${CMAKE_CUDA_IMPLICIT_OBJECT_REGEX}")
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# Detect CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT from the compiler by looking at which
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# cudart library exists in the implicit link libraries passed to the host linker.
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# This is required when a project sets the cuda runtime library as part of the
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# initial flags.
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if(";${CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES};" MATCHES [[;cudart_static(\.lib)?;]])
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set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT "STATIC")
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elseif(";${CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES};" MATCHES [[;cudart(\.lib)?;]])
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set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT "SHARED")
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else()
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set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT "NONE")
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endif()
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set(_SET_CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT
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"set(CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT \"${CMAKE_CUDA_RUNTIME_LIBRARY_DEFAULT}\")")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Parsed CUDA nvcc implicit link information from above output:\n${_nvcc_log}\n${log}\n\n")
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else()
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Failed to parsed CUDA nvcc implicit link information:\n${_nvcc_log}\n\n")
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message(FATAL_ERROR "Failed to extract nvcc implicit link line.")
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endif()
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endif()
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# CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES is detected above as the list of
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# libraries that the CUDA compiler implicitly passes to the host linker.
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# CMake invokes the host linker directly and so needs to pass these libraries.
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# We filter out those that should not be passed unconditionally both here
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# and from CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES in CMakeTestCUDACompiler.
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set(CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES_EXCLUDE
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# The CUDA runtime libraries are controlled by CMAKE_CUDA_RUNTIME_LIBRARY.
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cudart cudart.lib
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cudart_static cudart_static.lib
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cudadevrt cudadevrt.lib
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# Dependencies of the CUDA static runtime library on Linux hosts.
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rt
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pthread
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dl
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)
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list(REMOVE_ITEM CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES ${CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES_EXCLUDE})
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if(CMAKE_CUDA_COMPILER_SYSROOT)
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string(CONCAT _SET_CMAKE_CUDA_COMPILER_SYSROOT
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"set(CMAKE_CUDA_COMPILER_SYSROOT \"${CMAKE_CUDA_COMPILER_SYSROOT}\")\n"
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"set(CMAKE_COMPILER_SYSROOT \"${CMAKE_CUDA_COMPILER_SYSROOT}\")")
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else()
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set(_SET_CMAKE_CUDA_COMPILER_SYSROOT "")
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endif()
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# Determine CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES
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if(CMAKE_CUDA_COMPILER_ID STREQUAL "NVIDIA")
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set(CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES)
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string(REPLACE "\r" "" _nvcc_output_orig "${CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT}")
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if(_nvcc_output_orig MATCHES "#\\\$ +INCLUDES= *([^\n]*)\n")
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set(_nvcc_includes "${CMAKE_MATCH_1}")
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string(APPEND _nvcc_log " found 'INCLUDES=' string: [${_nvcc_includes}]\n")
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else()
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set(_nvcc_includes "")
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string(REPLACE "\n" "\n " _nvcc_output_log "\n${_nvcc_output_orig}")
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string(APPEND _nvcc_log " no 'INCLUDES=' string found in nvcc output:${_nvcc_output_log}\n")
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endif()
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if(_nvcc_includes)
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# across all operating system each include directory is prefixed with -I
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separate_arguments(_nvcc_output NATIVE_COMMAND "${_nvcc_includes}")
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foreach(line IN LISTS _nvcc_output)
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string(REGEX REPLACE "^-I" "" line "${line}")
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get_filename_component(line "${line}" ABSOLUTE)
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list(APPEND CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES "${line}")
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endforeach()
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Parsed CUDA nvcc include information from above output:\n${_nvcc_log}\n${log}\n\n")
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else()
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Failed to detect CUDA nvcc include information:\n${_nvcc_log}\n\n")
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endif()
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# Parse default CUDA architecture.
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cmake_policy(GET CMP0104 _CUDA_CMP0104)
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if(NOT CMAKE_CUDA_ARCHITECTURES AND _CUDA_CMP0104 STREQUAL "NEW")
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string(REGEX MATCH "arch[ =]compute_([0-9]+)" dont_care "${CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT}")
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set(detected_architecture "${CMAKE_MATCH_1}")
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elseif(CMAKE_CUDA_ARCHITECTURES)
|
|
string(REGEX MATCHALL "-arch compute_([0-9]+)" target_cpus "${CMAKE_CUDA_COMPILER_PRODUCED_OUTPUT}")
|
|
|
|
foreach(cpu ${target_cpus})
|
|
string(REGEX MATCH "-arch compute_([0-9]+)" dont_care "${cpu}")
|
|
list(APPEND architectures "${CMAKE_MATCH_1}")
|
|
endforeach()
|
|
endif()
|
|
endif()
|
|
|
|
# If the user didn't set the architectures, then set them to a default.
|
|
# If the user did, then make sure those architectures worked.
|
|
if(DEFINED detected_architecture)
|
|
set(CMAKE_CUDA_ARCHITECTURES "${detected_architecture}" CACHE STRING "CUDA architectures")
|
|
|
|
if(NOT CMAKE_CUDA_ARCHITECTURES)
|
|
message(FATAL_ERROR "Failed to find a working CUDA architecture.")
|
|
endif()
|
|
elseif(architectures)
|
|
# Sort since order mustn't matter.
|
|
list(SORT architectures)
|
|
list(SORT tested_architectures)
|
|
|
|
# We don't distinguish real/virtual architectures during testing.
|
|
# For "70-real;70-virtual" we detect "70" as working and tested_architectures is "70;70".
|
|
# Thus we need to remove duplicates before checking if they're equal.
|
|
list(REMOVE_DUPLICATES tested_architectures)
|
|
|
|
if(NOT "${architectures}" STREQUAL "${tested_architectures}")
|
|
message(FATAL_ERROR
|
|
"The CMAKE_CUDA_ARCHITECTURES:\n"
|
|
" ${CMAKE_CUDA_ARCHITECTURES}\n"
|
|
"do not all work with this compiler. Try:\n"
|
|
" ${architectures}\n"
|
|
"instead.")
|
|
endif()
|
|
endif()
|
|
|
|
# configure all variables set in this file
|
|
configure_file(${CMAKE_ROOT}/Modules/CMakeCUDACompiler.cmake.in
|
|
${CMAKE_PLATFORM_INFO_DIR}/CMakeCUDACompiler.cmake
|
|
@ONLY
|
|
)
|
|
|
|
set(CMAKE_CUDA_COMPILER_ENV_VAR "CUDACXX")
|
|
set(CMAKE_CUDA_HOST_COMPILER_ENV_VAR "CUDAHOSTCXX")
|