1 if((WIN32 AND NOT MSVC) OR OPENCV_CMAKE_FORCE_CUDA)
2 message(STATUS "CUDA compilation is disabled (due to only Visual Studio compiler supported on your platform).")
6 if((NOT UNIX AND CV_CLANG) OR OPENCV_CMAKE_FORCE_CUDA)
7 message(STATUS "CUDA compilation is disabled (due to Clang unsupported on your platform).")
11 #set(OPENCV_CMAKE_CUDA_DEBUG 1)
13 if(((NOT CMAKE_VERSION VERSION_LESS "3.9.0") # requires https://gitlab.kitware.com/cmake/cmake/merge_requests/663
14 OR OPENCV_CUDA_FORCE_EXTERNAL_CMAKE_MODULE)
15 AND NOT OPENCV_CUDA_FORCE_BUILTIN_CMAKE_MODULE)
16 ocv_update(CUDA_LINK_LIBRARIES_KEYWORD "PRIVATE")
17 find_host_package(CUDA "${MIN_VER_CUDA}" QUIET)
19 # Use OpenCV's patched "FindCUDA" module
20 set(CMAKE_MODULE_PATH "${OpenCV_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
23 set(CUDA_TARGET_OS_VARIANT "Android")
25 find_host_package(CUDA "${MIN_VER_CUDA}" QUIET)
27 list(REMOVE_AT CMAKE_MODULE_PATH 0)
32 if(NOT CUDA_VERSION VERSION_LESS 11.0)
33 # CUDA 11.0 removes nppicom
34 ocv_list_filterout(CUDA_nppi_LIBRARY "nppicom")
35 ocv_list_filterout(CUDA_npp_LIBRARY "nppicom")
47 set(CMAKE_MODULE_PATH "${OpenCV_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
48 find_host_package(CUDNN "${MIN_VER_CUDNN}")
49 list(REMOVE_AT CMAKE_MODULE_PATH 0)
57 macro(ocv_cuda_SEARCH_NVCUVID_HEADER _filename _result)
58 # place header file under CUDA_TOOLKIT_TARGET_DIR or CUDA_TOOLKIT_ROOT_DIR
59 find_path(_header_result
61 PATHS "${CUDA_TOOLKIT_TARGET_DIR}" "${CUDA_TOOLKIT_ROOT_DIR}"
67 if("x${_header_result}" STREQUAL "x_header_result-NOTFOUND")
72 unset(_header_result CACHE)
74 ocv_cuda_SEARCH_NVCUVID_HEADER("nvcuvid.h" HAVE_NVCUVID_HEADER)
75 ocv_cuda_SEARCH_NVCUVID_HEADER("dynlink_nvcuvid.h" HAVE_DYNLINK_NVCUVID_HEADER)
76 find_cuda_helper_libs(nvcuvid)
78 find_cuda_helper_libs(nvcuvenc)
80 if(CUDA_nvcuvid_LIBRARY AND (${HAVE_NVCUVID_HEADER} OR ${HAVE_DYNLINK_NVCUVID_HEADER}))
81 # make sure to have both header and library before enabling
84 if(CUDA_nvcuvenc_LIBRARY)
89 message(STATUS "CUDA detected: " ${CUDA_VERSION})
91 OCV_OPTION(CUDA_ENABLE_DEPRECATED_GENERATION "Enable deprecated generations in the list" OFF)
92 set(_generations "Maxwell" "Pascal" "Volta" "Turing" "Ampere")
93 if(CUDA_ENABLE_DEPRECATED_GENERATION)
94 set(_generations "Fermi" "${_generations}")
95 set(_generations "Kepler" "${_generations}")
97 set(_arch_fermi "2.0")
98 set(_arch_kepler "3.0;3.5;3.7")
99 set(_arch_maxwell "5.0;5.2")
100 set(_arch_pascal "6.0;6.1")
101 set(_arch_volta "7.0")
102 set(_arch_turing "7.5")
103 set(_arch_ampere "8.0;8.6")
104 if(NOT CMAKE_CROSSCOMPILING)
105 list(APPEND _generations "Auto")
107 set(CUDA_GENERATION "" CACHE STRING "Build CUDA device code only for specific GPU architecture. Leave empty to build for all architectures.")
108 if( CMAKE_VERSION VERSION_GREATER "2.8" )
109 set_property( CACHE CUDA_GENERATION PROPERTY STRINGS "" ${_generations} )
113 if(NOT ";${_generations};" MATCHES ";${CUDA_GENERATION};")
114 string(REPLACE ";" ", " _generations "${_generations}")
115 message(FATAL_ERROR "ERROR: ${_generations} Generations are supported.")
117 unset(CUDA_ARCH_BIN CACHE)
118 unset(CUDA_ARCH_PTX CACHE)
121 if(OPENCV_CUDA_DETECTION_NVCC_FLAGS MATCHES "-ccbin")
122 # already specified by user
123 elseif(CUDA_HOST_COMPILER AND EXISTS "${CUDA_HOST_COMPILER}")
124 get_filename_component(c_compiler_realpath "${CMAKE_C_COMPILER}" REALPATH)
125 # C compiler doesn't work with --run option, forcing C++ compiler instead
126 if(CUDA_HOST_COMPILER STREQUAL c_compiler_realpath OR CUDA_HOST_COMPILER STREQUAL CMAKE_C_COMPILER)
127 if(DEFINED CMAKE_CXX_COMPILER)
128 get_filename_component(cxx_compiler_realpath "${CMAKE_CXX_COMPILER}" REALPATH)
129 LIST(APPEND OPENCV_CUDA_DETECTION_NVCC_FLAGS -ccbin "${cxx_compiler_realpath}")
131 message(STATUS "CUDA: CMAKE_CXX_COMPILER is not available. You may need to specify CUDA_HOST_COMPILER.")
134 LIST(APPEND OPENCV_CUDA_DETECTION_NVCC_FLAGS -ccbin "${CUDA_HOST_COMPILER}")
136 elseif(WIN32 AND CMAKE_LINKER) # Workaround for VS cl.exe not being in the env. path
137 get_filename_component(host_compiler_bindir ${CMAKE_LINKER} DIRECTORY)
138 LIST(APPEND OPENCV_CUDA_DETECTION_NVCC_FLAGS -ccbin "${host_compiler_bindir}")
140 if(CUDA_HOST_COMPILER)
141 message(STATUS "CUDA: CUDA_HOST_COMPILER='${CUDA_HOST_COMPILER}' is not valid, autodetection may not work. Specify OPENCV_CUDA_DETECTION_NVCC_FLAGS with -ccbin option for fix that")
145 macro(ocv_filter_available_architecture result_list)
146 set(__cache_key_check "${ARGN} : ${CUDA_NVCC_EXECUTABLE} ${OPENCV_CUDA_DETECTION_NVCC_FLAGS}")
147 if(DEFINED OPENCV_CACHE_CUDA_SUPPORTED_CC AND OPENCV_CACHE_CUDA_SUPPORTED_CC_check STREQUAL __cache_key_check)
148 set(${result_list} "${OPENCV_CACHE_CUDA_SUPPORTED_CC}")
151 foreach(target_arch ${CC_LIST})
152 string(REPLACE "." "" target_arch_short "${target_arch}")
153 set(NVCC_OPTION "-gencode;arch=compute_${target_arch_short},code=sm_${target_arch_short}")
154 set(_cmd "${CUDA_NVCC_EXECUTABLE}" ${OPENCV_CUDA_DETECTION_NVCC_FLAGS} ${NVCC_OPTION} "${OpenCV_SOURCE_DIR}/cmake/checks/OpenCVDetectCudaArch.cu" --compile)
157 WORKING_DIRECTORY "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/"
158 RESULT_VARIABLE _nvcc_res
159 OUTPUT_VARIABLE _nvcc_out
160 ERROR_VARIABLE _nvcc_err
162 OUTPUT_STRIP_TRAILING_WHITESPACE
164 if(OPENCV_CMAKE_CUDA_DEBUG)
165 message(WARNING "COMMAND: ${_cmd}")
166 message(STATUS "Result: ${_nvcc_res}")
167 message(STATUS "Out: ${_nvcc_out}")
168 message(STATUS "Err: ${_nvcc_err}")
170 if(_nvcc_res EQUAL 0)
171 LIST(APPEND ${result_list} "${target_arch}")
174 string(STRIP "${${result_list}}" ${result_list})
175 if(" ${${result_list}}" STREQUAL " ")
176 message(WARNING "CUDA: Autodetection arch list is empty. Please enable OPENCV_CMAKE_CUDA_DEBUG=1 and check/specify OPENCV_CUDA_DETECTION_NVCC_FLAGS variable")
179 # cache detected values
180 set(OPENCV_CACHE_CUDA_SUPPORTED_CC ${${result_list}} CACHE INTERNAL "")
181 set(OPENCV_CACHE_CUDA_SUPPORTED_CC_check "${__cache_key_check}" CACHE INTERNAL "")
185 macro(ocv_detect_native_cuda_arch status output)
186 set(OPENCV_CUDA_DETECT_ARCHS_COMMAND "${CUDA_NVCC_EXECUTABLE}" ${OPENCV_CUDA_DETECTION_NVCC_FLAGS} "${OpenCV_SOURCE_DIR}/cmake/checks/OpenCVDetectCudaArch.cu" "--run")
187 set(__cache_key_check "${OPENCV_CUDA_DETECT_ARCHS_COMMAND}")
188 if(DEFINED OPENCV_CACHE_CUDA_ACTIVE_CC AND OPENCV_CACHE_CUDA_ACTIVE_CC_check STREQUAL __cache_key_check)
189 set(${output} "${OPENCV_CACHE_CUDA_ACTIVE_CC}")
193 COMMAND ${OPENCV_CUDA_DETECT_ARCHS_COMMAND}
194 WORKING_DIRECTORY "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/"
195 RESULT_VARIABLE ${status}
196 OUTPUT_VARIABLE _nvcc_out
197 ERROR_VARIABLE _nvcc_err
199 OUTPUT_STRIP_TRAILING_WHITESPACE
201 if(OPENCV_CMAKE_CUDA_DEBUG)
202 message(WARNING "COMMAND: ${OPENCV_CUDA_DETECT_ARCHS_COMMAND}")
203 message(STATUS "Result: ${${status}}")
204 message(STATUS "Out: ${_nvcc_out}")
205 message(STATUS "Err: ${_nvcc_err}")
207 string(REGEX REPLACE ".*\n" "" ${output} "${_nvcc_out}") #Strip leading warning messages, if any
209 if(${status} EQUAL 0)
210 # cache detected values
211 set(OPENCV_CACHE_CUDA_ACTIVE_CC ${${output}} CACHE INTERNAL "")
212 set(OPENCV_CACHE_CUDA_ACTIVE_CC_check "${__cache_key_check}" CACHE INTERNAL "")
217 set(__cuda_arch_ptx "")
218 if(CUDA_GENERATION STREQUAL "Fermi")
219 set(__cuda_arch_bin ${_arch_fermi})
220 elseif(CUDA_GENERATION STREQUAL "Kepler")
221 set(__cuda_arch_bin ${_arch_kepler})
222 elseif(CUDA_GENERATION STREQUAL "Maxwell")
223 set(__cuda_arch_bin ${_arch_maxwell})
224 elseif(CUDA_GENERATION STREQUAL "Pascal")
225 set(__cuda_arch_bin ${_arch_pascal})
226 elseif(CUDA_GENERATION STREQUAL "Volta")
227 set(__cuda_arch_bin ${_arch_volta})
228 elseif(CUDA_GENERATION STREQUAL "Turing")
229 set(__cuda_arch_bin ${_arch_turing})
230 elseif(CUDA_GENERATION STREQUAL "Ampere")
231 set(__cuda_arch_bin ${_arch_ampere})
232 elseif(CUDA_GENERATION STREQUAL "Auto")
233 ocv_detect_native_cuda_arch(_nvcc_res _nvcc_out)
234 if(NOT _nvcc_res EQUAL 0)
235 message(STATUS "Automatic detection of CUDA generation failed. Going to build for all known architectures.")
237 string(REGEX MATCHALL "[0-9]+\\.[0-9]" __cuda_arch_bin "${_nvcc_out}")
239 elseif(CUDA_ARCH_BIN)
240 message(STATUS "CUDA: Using CUDA_ARCH_BIN=${CUDA_ARCH_BIN}")
241 set(__cuda_arch_bin ${CUDA_ARCH_BIN})
244 if(NOT DEFINED __cuda_arch_bin)
246 set(__cuda_arch_bin "3.2")
247 set(__cuda_arch_ptx "")
249 if(NOT CMAKE_CROSSCOMPILING)
250 ocv_detect_native_cuda_arch(_nvcc_res _nvcc_out)
252 set(_nvcc_res -1) # emulate error, see below
254 if(NOT _nvcc_res EQUAL 0)
255 message(STATUS "Automatic detection of CUDA generation failed. Going to build for all known architectures.")
256 # TX1 (5.3) TX2 (6.2) Xavier (7.2) V100 (7.0) Orin (8.7)
257 ocv_filter_available_architecture(__cuda_arch_bin
265 set(__cuda_arch_bin "${_nvcc_out}")
267 set(__cuda_arch_ptx "")
269 ocv_filter_available_architecture(__cuda_arch_bin
281 set(CUDA_ARCH_BIN ${__cuda_arch_bin} CACHE STRING "Specify 'real' GPU architectures to build binaries for, BIN(PTX) format is supported")
282 set(CUDA_ARCH_PTX ${__cuda_arch_ptx} CACHE STRING "Specify 'virtual' PTX architectures to build PTX intermediate code for")
284 string(REGEX REPLACE "\\." "" ARCH_BIN_NO_POINTS "${CUDA_ARCH_BIN}")
285 string(REGEX REPLACE "\\." "" ARCH_PTX_NO_POINTS "${CUDA_ARCH_PTX}")
287 # Check if user specified 1.0/2.1 compute capability: we don't support it
288 macro(ocv_wipeout_deprecated_cc target_cc)
289 if(" ${CUDA_ARCH_BIN} ${CUDA_ARCH_PTX}" MATCHES " ${target_cc}")
290 message(SEND_ERROR "CUDA: ${target_cc} compute capability is not supported - exclude it from ARCH/PTX list and re-run CMake")
293 ocv_wipeout_deprecated_cc("1.0")
294 ocv_wipeout_deprecated_cc("2.1")
296 # NVCC flags to be set
297 set(NVCC_FLAGS_EXTRA "")
299 # These vars will be passed into the templates
300 set(OPENCV_CUDA_ARCH_BIN "")
301 set(OPENCV_CUDA_ARCH_PTX "")
302 set(OPENCV_CUDA_ARCH_FEATURES "")
304 # Tell NVCC to add binaries for the specified GPUs
305 string(REGEX MATCHALL "[0-9()]+" ARCH_LIST "${ARCH_BIN_NO_POINTS}")
306 foreach(ARCH IN LISTS ARCH_LIST)
307 if(ARCH MATCHES "([0-9]+)\\(([0-9]+)\\)")
308 # User explicitly specified PTX for the concrete BIN
309 set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_EXTRA} -gencode arch=compute_${CMAKE_MATCH_2},code=sm_${CMAKE_MATCH_1})
310 set(OPENCV_CUDA_ARCH_BIN "${OPENCV_CUDA_ARCH_BIN} ${CMAKE_MATCH_1}")
311 set(OPENCV_CUDA_ARCH_FEATURES "${OPENCV_CUDA_ARCH_FEATURES} ${CMAKE_MATCH_2}")
313 # User didn't explicitly specify PTX for the concrete BIN, we assume PTX=BIN
314 set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_EXTRA} -gencode arch=compute_${ARCH},code=sm_${ARCH})
315 set(OPENCV_CUDA_ARCH_BIN "${OPENCV_CUDA_ARCH_BIN} ${ARCH}")
316 set(OPENCV_CUDA_ARCH_FEATURES "${OPENCV_CUDA_ARCH_FEATURES} ${ARCH}")
319 set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_EXTRA} -D_FORCE_INLINES)
321 # Tell NVCC to add PTX intermediate code for the specified architectures
322 string(REGEX MATCHALL "[0-9]+" ARCH_LIST "${ARCH_PTX_NO_POINTS}")
323 foreach(ARCH IN LISTS ARCH_LIST)
324 set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_EXTRA} -gencode arch=compute_${ARCH},code=compute_${ARCH})
325 set(OPENCV_CUDA_ARCH_PTX "${OPENCV_CUDA_ARCH_PTX} ${ARCH}")
326 set(OPENCV_CUDA_ARCH_FEATURES "${OPENCV_CUDA_ARCH_FEATURES} ${ARCH}")
329 # These vars will be processed in other scripts
330 set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} ${NVCC_FLAGS_EXTRA})
331 set(OpenCV_CUDA_CC "${NVCC_FLAGS_EXTRA}")
334 set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} "-Xptxas;-dlcm=ca")
337 message(STATUS "CUDA NVCC target flags: ${CUDA_NVCC_FLAGS}")
339 OCV_OPTION(CUDA_FAST_MATH "Enable --use_fast_math for CUDA compiler " OFF)
342 set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} --use_fast_math)
345 mark_as_advanced(CUDA_BUILD_CUBIN CUDA_BUILD_EMULATION CUDA_VERBOSE_BUILD CUDA_SDK_ROOT_DIR)
347 macro(ocv_cuda_filter_options)
348 foreach(var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG)
349 set(${var}_backup_in_cuda_compile_ "${${var}}")
352 # we remove -Winconsistent-missing-override and -Qunused-arguments
353 # just in case we are compiling CUDA with gcc but OpenCV with clang
354 string(REPLACE "-Winconsistent-missing-override" "" ${var} "${${var}}")
355 string(REPLACE "-Qunused-arguments" "" ${var} "${${var}}")
358 # we remove /EHa as it generates warnings under windows
359 string(REPLACE "/EHa" "" ${var} "${${var}}")
361 # we remove -ggdb3 flag as it leads to preprocessor errors when compiling CUDA files (CUDA 4.1)
362 string(REPLACE "-ggdb3" "" ${var} "${${var}}")
364 # we remove -Wsign-promo as it generates warnings under linux
365 string(REPLACE "-Wsign-promo" "" ${var} "${${var}}")
367 # we remove -Wno-sign-promo as it generates warnings under linux
368 string(REPLACE "-Wno-sign-promo" "" ${var} "${${var}}")
370 # we remove -Wno-delete-non-virtual-dtor because it's used for C++ compiler
371 # but NVCC uses C compiler by default
372 string(REPLACE "-Wno-delete-non-virtual-dtor" "" ${var} "${${var}}")
374 # we remove -frtti because it's used for C++ compiler
375 # but NVCC uses C compiler by default
376 string(REPLACE "-frtti" "" ${var} "${${var}}")
378 string(REPLACE "-fvisibility-inlines-hidden" "" ${var} "${${var}}")
380 # cc1: warning: command line option '-Wsuggest-override' is valid for C++/ObjC++ but not for C
381 string(REPLACE "-Wsuggest-override" "" ${var} "${${var}}")
383 # issue: #11552 (from OpenCVCompilerOptions.cmake)
384 string(REGEX REPLACE "-Wimplicit-fallthrough(=[0-9]+)? " "" ${var} "${${var}}")
386 # removal of custom specified options
387 if(OPENCV_CUDA_NVCC_FILTEROUT_OPTIONS)
388 foreach(__flag ${OPENCV_CUDA_NVCC_FILTEROUT_OPTIONS})
389 string(REPLACE "${__flag}" "" ${var} "${${var}}")
395 macro(ocv_cuda_compile VAR)
396 ocv_cuda_filter_options()
398 if(BUILD_SHARED_LIBS)
399 set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -Xcompiler -DCVAPI_EXPORTS)
403 set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -Xcompiler -fPIC)
404 if(NOT " ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_DEBUG} ${CUDA_NVCC_FLAGS}" MATCHES "-std=")
405 if(CUDA_VERSION VERSION_LESS "11.0")
406 list(APPEND CUDA_NVCC_FLAGS "--std=c++11")
408 list(APPEND CUDA_NVCC_FLAGS "--std=c++14")
413 set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -Xcompiler -fno-finite-math-only)
416 if(CMAKE_CROSSCOMPILING AND (ARM OR AARCH64))
417 set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -Xlinker --unresolved-symbols=ignore-in-shared-libs)
420 # disabled because of multiple warnings during building nvcc auto generated files
421 if(CV_GCC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "4.6.0")
422 ocv_warnings_disable(CMAKE_CXX_FLAGS -Wunused-but-set-variable)
425 CUDA_COMPILE(${VAR} ${ARGN})
427 foreach(var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG)
428 set(${var} "${${var}_backup_in_cuda_compile_}")
429 unset(${var}_backup_in_cuda_compile_)
433 unset(CUDA_ARCH_BIN CACHE)
434 unset(CUDA_ARCH_PTX CACHE)
438 set(CUDA_LIBS_PATH "")
439 foreach(p ${CUDA_LIBRARIES} ${CUDA_npp_LIBRARY})
440 get_filename_component(_tmp ${p} PATH)
441 list(APPEND CUDA_LIBS_PATH ${_tmp})
445 foreach(p ${CUDA_cublas_LIBRARY})
446 get_filename_component(_tmp ${p} PATH)
447 list(APPEND CUDA_LIBS_PATH ${_tmp})
452 foreach(p ${CUDNN_LIBRARIES})
453 get_filename_component(_tmp ${p} PATH)
454 list(APPEND CUDA_LIBS_PATH ${_tmp})
459 foreach(p ${CUDA_cufft_LIBRARY})
460 get_filename_component(_tmp ${p} PATH)
461 list(APPEND CUDA_LIBS_PATH ${_tmp})
465 list(REMOVE_DUPLICATES CUDA_LIBS_PATH)
466 link_directories(${CUDA_LIBS_PATH})
468 set(CUDA_LIBRARIES_ABS ${CUDA_LIBRARIES})
469 ocv_convert_to_lib_name(CUDA_LIBRARIES ${CUDA_LIBRARIES})
470 set(CUDA_npp_LIBRARY_ABS ${CUDA_npp_LIBRARY})
471 ocv_convert_to_lib_name(CUDA_npp_LIBRARY ${CUDA_npp_LIBRARY})
473 set(CUDA_cublas_LIBRARY_ABS ${CUDA_cublas_LIBRARY})
474 ocv_convert_to_lib_name(CUDA_cublas_LIBRARY ${CUDA_cublas_LIBRARY})
477 set(CUDNN_LIBRARIES_ABS ${CUDNN_LIBRARIES})
478 ocv_convert_to_lib_name(CUDNN_LIBRARIES ${CUDNN_LIBRARIES})
481 set(CUDA_cufft_LIBRARY_ABS ${CUDA_cufft_LIBRARY})
482 ocv_convert_to_lib_name(CUDA_cufft_LIBRARY ${CUDA_cufft_LIBRARY})
485 if(CMAKE_GENERATOR MATCHES "Visual Studio"
486 AND NOT OPENCV_SKIP_CUDA_CMAKE_SUPPRESS_REGENERATION
488 message(STATUS "CUDA: MSVS generator is detected. Disabling CMake re-run checks (CMAKE_SUPPRESS_REGENERATION=ON). You need to run CMake manually if updates are required.")
489 set(CMAKE_SUPPRESS_REGENERATION ON)
494 # ----------------------------------------------------------------------------
495 # Add CUDA libraries (needed for apps/tools, samples)
496 # ----------------------------------------------------------------------------
498 # details: https://github.com/NVIDIA/nvidia-docker/issues/775
499 if(" ${CUDA_CUDA_LIBRARY}" MATCHES "/stubs/libcuda.so" AND NOT OPENCV_SKIP_CUDA_STUB_WORKAROUND)
500 set(CUDA_STUB_ENABLED_LINK_WORKAROUND 1)
501 if(EXISTS "${CUDA_CUDA_LIBRARY}" AND NOT OPENCV_SKIP_CUDA_STUB_WORKAROUND_RPATH_LINK)
502 set(CUDA_STUB_TARGET_PATH "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/")
503 execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${CUDA_CUDA_LIBRARY}" "${CUDA_STUB_TARGET_PATH}/libcuda.so.1"
504 RESULT_VARIABLE CUDA_STUB_SYMLINK_RESULT)
505 if(NOT CUDA_STUB_SYMLINK_RESULT EQUAL 0)
506 execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CUDA_CUDA_LIBRARY}" "${CUDA_STUB_TARGET_PATH}/libcuda.so.1"
507 RESULT_VARIABLE CUDA_STUB_COPY_RESULT)
508 if(NOT CUDA_STUB_COPY_RESULT EQUAL 0)
509 set(CUDA_STUB_ENABLED_LINK_WORKAROUND 0)
512 if(CUDA_STUB_ENABLED_LINK_WORKAROUND)
513 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath-link,\"${CUDA_STUB_TARGET_PATH}\"")
516 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--allow-shlib-undefined")
518 if(NOT CUDA_STUB_ENABLED_LINK_WORKAROUND)
519 message(WARNING "CUDA: workaround for stubs/libcuda.so.1 is not applied")
523 set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} ${CUDA_LIBRARIES} ${CUDA_npp_LIBRARY})
525 set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} ${CUDA_cublas_LIBRARY})
528 set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} ${CUDNN_LIBRARIES})
531 set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} ${CUDA_cufft_LIBRARY})
533 foreach(p ${CUDA_LIBS_PATH})
534 if(MSVC AND CMAKE_GENERATOR MATCHES "Ninja|JOM")
535 set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} ${CMAKE_LIBRARY_PATH_FLAG}"${p}")
537 set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} ${CMAKE_LIBRARY_PATH_FLAG}${p})