cuda lib64和stubs目录下存在同名so 引起cmake错误

旧城等待， 2021-05-16 06:15 386阅读 0赞

错误提示

CMake Warning at cmake/FindCUDA.cmake:1649 (add\_library):  
  Cannot generate a safe runtime search path for target test because  
  files in some directories may conflict with libraries in implicit  
  directories:

runtime library \[libcublas.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libcufft.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libcufftw.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libcurand.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libcusolver.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libcusparse.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppc.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppial.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppicc.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppicom.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppidei.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppif.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppig.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppim.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppist.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppisu.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnppitc.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnpps.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnvgraph.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnvjpeg.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64  
    runtime library \[libnvrtc.so.10.0\] in /usr/local/cuda/lib64/stubs may be hidden by files in:  
      /usr/local/cuda/lib64

Some of these libraries may not be found correctly.  
Call Stack (most recent call first):  
  test/src/CMakeLists.txt:7 (cuda\_add\_library)

该提示显示cuda\_add\_library错误，但是实际上错误发生在 target\_link\_libraries链接时

set(CUDA_LIB_DIR ${CUDA_TOOLKIT_ROOT_DIR}/lib64)
    file(GLOB_RECURSE CUDA_ALL_LIBS ${CUDA_LIB_DIR}/*.so)
    
    file(GLOB_RECURSE CU_SOURCES *.cu)
    file(GLOB_RECURSE CPP_SOURCES *.cpp)
    cuda_add_library(test SHARED
    ${CU_SOURCES}
    ${CPP_SOURCES}
    )
    target_link_libraries(gh2nvcodec -lstdc++fs ${CUDA_ALL_LIBS})

可以看到我很粗暴地链接所有cuda的所有lib，但是/usr/local/cuda/lib64目录下还有一个stubs目录，此目录下存在的so与lib64目录下的so同名，因此target\_link\_libraries出错，所以遍历/usr/local/cuda/lib64下so时需要把stubs下的so去掉，增加以下两句可以达到此效果

file(GLOB\_RECURSE CUDA\_STUBS\_LIBS $\{CUDA\_LIB\_DIR\}/stubs/\*.so)  
list(REMOVE\_ITEM CUDA\_ALL\_LIBS $\{CUDA\_STUBS\_LIBS\})