1# Distributed under the OSI-approved BSD 3-Clause License. See accompanying 2# file Copyright.txt or https://cmake.org/licensing for details. 3 4if(UNIX) 5 set(CMAKE_CUDA_OUTPUT_EXTENSION .o) 6else() 7 set(CMAKE_CUDA_OUTPUT_EXTENSION .obj) 8endif() 9set(CMAKE_INCLUDE_FLAG_CUDA "-I") 10 11# Set implicit links early so compiler-specific modules can use them. 12set(__IMPLICIT_LINKS) 13foreach(dir ${CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES}) 14 string(APPEND __IMPLICIT_LINKS " -L\"${dir}\"") 15endforeach() 16foreach(lib ${CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES}) 17 if(${lib} MATCHES "/") 18 string(APPEND __IMPLICIT_LINKS " \"${lib}\"") 19 else() 20 string(APPEND __IMPLICIT_LINKS " -l${lib}") 21 endif() 22endforeach() 23 24# Load compiler-specific information. 25if(CMAKE_CUDA_COMPILER_ID) 26 include(Compiler/${CMAKE_CUDA_COMPILER_ID}-CUDA OPTIONAL) 27endif() 28 29# load the system- and compiler specific files 30if(CMAKE_CUDA_COMPILER_ID) 31 # load a hardware specific file, mostly useful for embedded compilers 32 if(CMAKE_SYSTEM_PROCESSOR) 33 include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_CUDA_COMPILER_ID}-CUDA-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL) 34 endif() 35 include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_CUDA_COMPILER_ID}-CUDA OPTIONAL) 36endif() 37 38 39# This should be included before the _INIT variables are 40# used to initialize the cache. Since the rule variables 41# have if blocks on them, users can still define them here. 42# But, it should still be after the platform file so changes can 43# be made to those values. 44 45if(CMAKE_USER_MAKE_RULES_OVERRIDE) 46 # Save the full path of the file so try_compile can use it. 47 include(${CMAKE_USER_MAKE_RULES_OVERRIDE} RESULT_VARIABLE _override) 48 set(CMAKE_USER_MAKE_RULES_OVERRIDE "${_override}") 49endif() 50 51if(CMAKE_USER_MAKE_RULES_OVERRIDE_CUDA) 52 # Save the full path of the file so try_compile can use it. 53 include(${CMAKE_USER_MAKE_RULES_OVERRIDE_CUDA} RESULT_VARIABLE _override) 54 set(CMAKE_USER_MAKE_RULES_OVERRIDE_CUDA "${_override}") 55endif() 56 57 58if(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CUDA_FLAG) 59 set(CMAKE_SHARED_LIBRARY_RUNTIME_CUDA_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG}) 60endif() 61 62if(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CUDA_FLAG_SEP) 63 set(CMAKE_SHARED_LIBRARY_RUNTIME_CUDA_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP}) 64endif() 65 66if(NOT CMAKE_SHARED_LIBRARY_RPATH_LINK_CUDA_FLAG) 67 set(CMAKE_SHARED_LIBRARY_RPATH_LINK_CUDA_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG}) 68endif() 69 70if(NOT DEFINED CMAKE_EXE_EXPORTS_CUDA_FLAG) 71 set(CMAKE_EXE_EXPORTS_CUDA_FLAG ${CMAKE_EXE_EXPORTS_C_FLAG}) 72endif() 73 74if(NOT DEFINED CMAKE_SHARED_LIBRARY_SONAME_CUDA_FLAG) 75 set(CMAKE_SHARED_LIBRARY_SONAME_CUDA_FLAG ${CMAKE_SHARED_LIBRARY_SONAME_C_FLAG}) 76endif() 77 78if(NOT CMAKE_EXECUTABLE_RUNTIME_CUDA_FLAG) 79 set(CMAKE_EXECUTABLE_RUNTIME_CUDA_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_CUDA_FLAG}) 80endif() 81 82if(NOT CMAKE_EXECUTABLE_RUNTIME_CUDA_FLAG_SEP) 83 set(CMAKE_EXECUTABLE_RUNTIME_CUDA_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_CUDA_FLAG_SEP}) 84endif() 85 86if(NOT CMAKE_EXECUTABLE_RPATH_LINK_CUDA_FLAG) 87 set(CMAKE_EXECUTABLE_RPATH_LINK_CUDA_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_CUDA_FLAG}) 88endif() 89 90if(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CUDA_WITH_RUNTIME_PATH) 91 set(CMAKE_SHARED_LIBRARY_LINK_CUDA_WITH_RUNTIME_PATH ${CMAKE_SHARED_LIBRARY_LINK_C_WITH_RUNTIME_PATH}) 92endif() 93 94 95# for most systems a module is the same as a shared library 96# so unless the variable CMAKE_MODULE_EXISTS is set just 97# copy the values from the LIBRARY variables 98if(NOT CMAKE_MODULE_EXISTS) 99 set(CMAKE_SHARED_MODULE_CUDA_FLAGS ${CMAKE_SHARED_LIBRARY_CUDA_FLAGS}) 100 set(CMAKE_SHARED_MODULE_CREATE_CUDA_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_CUDA_FLAGS}) 101endif() 102 103if(CMAKE_EXECUTABLE_FORMAT STREQUAL "ELF") 104 if(NOT DEFINED CMAKE_CUDA_LINK_WHAT_YOU_USE_FLAG) 105 set(CMAKE_CUDA_LINK_WHAT_YOU_USE_FLAG "LINKER:--no-as-needed") 106 endif() 107 if(NOT DEFINED CMAKE_LINK_WHAT_YOU_USE_CHECK) 108 set(CMAKE_LINK_WHAT_YOU_USE_CHECK ldd -u -r) 109 endif() 110endif() 111 112# add the flags to the cache based 113# on the initial values computed in the platform/*.cmake files 114# use _INIT variables so that this only happens the first time 115# and you can set these flags in the cmake cache 116set(CMAKE_CUDA_FLAGS_INIT "$ENV{CUDAFLAGS} ${CMAKE_CUDA_FLAGS_INIT}") 117 118cmake_initialize_per_config_variable(CMAKE_CUDA_FLAGS "Flags used by the CUDA compiler") 119 120if(CMAKE_CUDA_STANDARD_LIBRARIES_INIT) 121 set(CMAKE_CUDA_STANDARD_LIBRARIES "${CMAKE_CUDA_STANDARD_LIBRARIES_INIT}" 122 CACHE STRING "Libraries linked by default with all CUDA applications.") 123 mark_as_advanced(CMAKE_CUDA_STANDARD_LIBRARIES) 124endif() 125 126if(NOT CMAKE_CUDA_COMPILER_LAUNCHER AND DEFINED ENV{CMAKE_CUDA_COMPILER_LAUNCHER}) 127 set(CMAKE_CUDA_COMPILER_LAUNCHER "$ENV{CMAKE_CUDA_COMPILER_LAUNCHER}" 128 CACHE STRING "Compiler launcher for CUDA.") 129endif() 130 131include(CMakeCommonLanguageInclude) 132 133# now define the following rules: 134# CMAKE_CUDA_CREATE_SHARED_LIBRARY 135# CMAKE_CUDA_CREATE_SHARED_MODULE 136# CMAKE_CUDA_COMPILE_WHOLE_COMPILATION 137# CMAKE_CUDA_COMPILE_PTX_COMPILATION 138# CMAKE_CUDA_COMPILE_SEPARABLE_COMPILATION 139# CMAKE_CUDA_LINK_EXECUTABLE 140 141# create a shared library 142if(NOT CMAKE_CUDA_CREATE_SHARED_LIBRARY) 143 set(CMAKE_CUDA_CREATE_SHARED_LIBRARY 144 "<CMAKE_CUDA_HOST_LINK_LAUNCHER> <CMAKE_SHARED_LIBRARY_CUDA_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CUDA_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>${__IMPLICIT_LINKS}") 145endif() 146 147# create a shared module copy the shared library rule by default 148if(NOT CMAKE_CUDA_CREATE_SHARED_MODULE) 149 set(CMAKE_CUDA_CREATE_SHARED_MODULE ${CMAKE_CUDA_CREATE_SHARED_LIBRARY}) 150endif() 151 152# Create a static archive incrementally for large object file counts. 153if(NOT DEFINED CMAKE_CUDA_ARCHIVE_CREATE) 154 set(CMAKE_CUDA_ARCHIVE_CREATE "<CMAKE_AR> qc <TARGET> <LINK_FLAGS> <OBJECTS>") 155endif() 156if(NOT DEFINED CMAKE_CUDA_ARCHIVE_APPEND) 157 set(CMAKE_CUDA_ARCHIVE_APPEND "<CMAKE_AR> q <TARGET> <LINK_FLAGS> <OBJECTS>") 158endif() 159if(NOT DEFINED CMAKE_CUDA_ARCHIVE_FINISH) 160 set(CMAKE_CUDA_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>") 161endif() 162 163#Specify how to compile when ptx has been requested 164if(NOT CMAKE_CUDA_COMPILE_PTX_COMPILATION) 165 set(CMAKE_CUDA_COMPILE_PTX_COMPILATION 166 "<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> ${_CMAKE_COMPILE_AS_CUDA_FLAG} ${_CMAKE_CUDA_PTX_FLAG} <SOURCE> -o <OBJECT>") 167endif() 168 169#Specify how to compile when separable compilation has been requested 170if(NOT CMAKE_CUDA_COMPILE_SEPARABLE_COMPILATION) 171 set(CMAKE_CUDA_COMPILE_SEPARABLE_COMPILATION 172 "<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> ${_CMAKE_COMPILE_AS_CUDA_FLAG} ${_CMAKE_CUDA_DEVICE_CODE} <SOURCE> -o <OBJECT>") 173endif() 174 175#Specify how to compile when whole compilation has been requested 176if(NOT CMAKE_CUDA_COMPILE_WHOLE_COMPILATION) 177 set(CMAKE_CUDA_COMPILE_WHOLE_COMPILATION 178 "<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> ${_CMAKE_COMPILE_AS_CUDA_FLAG} -c <SOURCE> -o <OBJECT>") 179endif() 180 181# compile a cu file into an executable 182if(NOT CMAKE_CUDA_LINK_EXECUTABLE) 183 set(CMAKE_CUDA_LINK_EXECUTABLE 184 "<CMAKE_CUDA_HOST_LINK_LAUNCHER> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICIT_LINKS}") 185endif() 186 187# Add implicit host link directories that contain device libraries 188# to the device link line. 189set(__IMPLICIT_DLINK_DIRS ${CMAKE_CUDA_IMPLICIT_LINK_DIRECTORIES}) 190if(__IMPLICIT_DLINK_DIRS) 191 list(REMOVE_ITEM __IMPLICIT_DLINK_DIRS ${CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES}) 192endif() 193set(__IMPLICIT_DLINK_FLAGS) 194foreach(dir ${__IMPLICIT_DLINK_DIRS}) 195 if(EXISTS "${dir}/libcurand_static.a") 196 string(APPEND __IMPLICIT_DLINK_FLAGS " -L\"${dir}\"") 197 endif() 198endforeach() 199unset(__IMPLICIT_DLINK_DIRS) 200 201 202#These are used when linking relocatable (dc) cuda code 203if(NOT CMAKE_CUDA_DEVICE_LINK_LIBRARY) 204 set(CMAKE_CUDA_DEVICE_LINK_LIBRARY 205 "<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> ${CMAKE_CUDA_COMPILE_OPTIONS_PIC} ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICIT_DLINK_FLAGS}") 206endif() 207if(NOT CMAKE_CUDA_DEVICE_LINK_EXECUTABLE) 208 set(CMAKE_CUDA_DEVICE_LINK_EXECUTABLE 209 "<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> ${CMAKE_CUDA_COMPILE_OPTIONS_PIC} ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICIT_DLINK_FLAGS}") 210endif() 211 212# Used when device linking is handled by CMake. 213if(NOT CMAKE_CUDA_DEVICE_LINK_COMPILE) 214 set(CMAKE_CUDA_DEVICE_LINK_COMPILE "<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <FLAGS> -D__CUDA_INCLUDE_COMPILER_INTERNAL_HEADERS__ -D__NV_EXTRA_INITIALIZATION=\"\" -D__NV_EXTRA_FINALIZATION=\"\" -DREGISTERLINKBINARYFILE=\\\"<REGISTER_FILE>\\\" -DFATBINFILE=\\\"<FATBINARY>\\\" ${_CMAKE_COMPILE_AS_CUDA_FLAG} -c \"${CMAKE_CUDA_COMPILER_TOOLKIT_LIBRARY_ROOT}/bin/crt/link.stub\" -o <OBJECT>") 215endif() 216 217unset(__IMPLICIT_DLINK_FLAGS) 218 219set(CMAKE_CUDA_INFORMATION_LOADED 1) 220