1 Reply Latest reply on Mar 22, 2012 2:24 PM by gmt2027

    Shared library load error during clBuildProgram on Ubuntu 11.10

    gmt2027

      I have installed the APP SDK and the samples build successfully, however at runtime I get the following output

       

      Build Options are : -D DATATYPE=float2

       

                                    BUILD LOG

      ************************************************

      Internal Error: loading shared library failed!

       

       

      ************************************************

      Error: clBuildProgram failed. Error code : CL_BUILD_PROGRAM_FAILURE

      Location : SDKCommon.cpp:1614

      Error: sampleCommon::buildOpenCLProgram() failed

      Location : LDSBandwidth.cpp:281

       

      Using strace shows this

       

      open("/tmp/OCLxmk7zD_amdrt.o", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 4

      writev(4, [{NULL, 0}, {"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\1\0\3\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 2136}], 2) = 2136

      close(4)                                = 0

      vfork()                                 = 19986

      waitpid(19986, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 19986

      --- SIGCHLD (Child exited) @ 0 (0) ---

      unlink("/tmp/OCLxmk7zD.o")              = 0

      unlink("/tmp/OCLxmk7zD_amdrt.o")        = 0

      open("/tmp/OCLxmk7zD.so", O_RDONLY|O_LARGEFILE) = 4

      _llseek(4, 0, [61835], SEEK_END)        = 0

      _llseek(4, 0, [61835], SEEK_CUR)        = 0

      _llseek(4, 0, [0], SEEK_SET)            = 0

      read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\5\0\0004\0\0\0"..., 61835) = 61835

      close(4)                                = 0

      brk(0x9fa5000)                          = 0x9fa5000

      open("/tmp/OCLxmk7zD.so", O_RDONLY)     = 4

      read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\5\0\0004\0\0\0"..., 512) = 512

      fstat64(4, {st_mode=S_IFREG|0775, st_size=61835, ...}) = 0

      mmap2(NULL, 63468, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = -1 EPERM (Operation not permitted)

      close(4)                                = 0

      open("/tmp/libOCLxmk7zD.so", O_RDONLY)  = -1 ENOENT (No such file or directory)

      close(3)                                = 0

      unlink("/tmp/OCLb2MAb3")                = 0

       

      It appears that the platform successfully compiles a shared library to /tmp/OCLxmk7zD.so and subsequently attempts to load /tmp/libOCLxmk7zD.so. Is this expected behaviour or a problem with my setup? pyopencl also gives the same error.