【记录一个问题】opencv + cuda编译release版本后，链接出现奇怪的符号

解决OpenCV与OpenCL链接错误

最新推荐文章于 2024-08-08 10:25:00 发布

转载最新推荐文章于 2024-08-08 10:25:00 发布 · 315 阅读

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原文链接：http://www.cnblogs.com/ahfuzhang/p/10998319.html

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#人工智能 #python

本文详细记录了解决在使用OpenCV时遇到的与OpenCL相关链接错误的过程。通过重新编译OpenCV并禁用所有WITH_OPENCL选项，成功解决了由多个未定义引用导致的链接失败问题。

链接出现以下信息：

 1 /home/admin/opencv/20190610_cuda_release/lib64/libopencv_core.a(ocl.cpp.o): In function `cv::ocl::Context::Impl::svmInit()':
 2 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x133): undefined reference to `clSVMAlloc_pfn'
 3 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x16e): undefined reference to `clEnqueueSVMMap_pfn'
 4 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x1aa): undefined reference to `clEnqueueSVMUnmap_pfn'
 5 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x1dd): undefined reference to `clSVMFree_pfn'
 6 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x204): undefined reference to `clSetKernelArgSVMPointer_pfn'
 7 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x215): undefined reference to `clEnqueueSVMMemcpy_pfn'
 8 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x226): undefined reference to `clEnqueueSVMMemFill_pfn'
 9 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x237): undefined reference to `clEnqueueSVMMap_pfn'
10 ocl.cpp:(.text._ZN2cv3ocl7Context4Impl7svmInitEv[_ZN2cv3ocl7Context4Impl7svmInitEv]+0x4b7): undefined reference to `clSVMFree_pfn'
11 collect2: error: ld returned 1 exit status
12 make[2]: *** [test_kcf] Error 1
13 make[1]: *** [CMakeFiles/test_kcf.dir/all] Error 2
14 make: *** [all] Error 2