Compiling OpenCL kernel in Fedora 28

[Altera_Forum]

Hi, 

 I have installed OpenCL SDK in my Fedora 28. But while trying to compile the kernel I am getting the following linking error,    --- Quote Start ---  [sumanish@black vector_add]$ aoc -march=emulator -v -board=a10gx device/vector_add.cl -o bin/vector_add.aocx aoc: Environment checks are completed successfully. aoc: Cached files in /var/tmp/aocl/sumanish may be used to reduce compilation time You are now compiling the full flow!! aoc: Selected target board a10gx aoc: Running OpenCL parser.... /home/sumanish/Intel_FPGA_OpenCL_SDK/Examples/exm_opencl_vector_add_x64_linux/vector_add/device/vector_add.cl:23:48: warning: declaring kernel argument with no 'restrict' may lead to low kernel performance __kernel void vector_add(__global const float *x,   ^ /home/sumanish/Intel_FPGA_OpenCL_SDK/Examples/exm_opencl_vector_add_x64_linux/vector_add/device/vector_add.cl:24:48: warning: declaring kernel argument with no 'restrict' may lead to low kernel performance  __global const float *y,   ^ 2 warnings generated. aoc: OpenCL parser completed successfully. aoc: Linking Object files.... aoc: Compiling for Emulation .... /usr/bin/ld: cannot find crtbeginS.o: No such file or directory /usr/bin/ld: cannot find -lgcc /usr/bin/ld: cannot find -lgcc_s aocl-clang: error: linker command failed with exit code 1 (use -v to see invocation) Error: Optimizer FAILED. Refer to vector_add/vector_add.log for details.   [sumanish@black vector_add]$    --- Quote End ---    Which thing I am missing ? Please help.  Regards, Sumanish

[JosephC_Intel]

Hi Sumanish,

This (/usr/bin/ld: cannot find crtbeginS.o: No such file or directory ) indicates that the system is looking for that .o file during the emulator installation.

Most probably, you need to have libgcc 4.9 on yours Linux environments based on Fedora 28. It is either downgrade (F28 running GCC8) your fedora OS that runs on libgcc 4.9 or get libgcc 4.9 version up and run on your existing Linux OS.

Or do a yum search gcc* and then yum install gcc<4.9> version of GCC.

Good Luck!

Thanks,

JosephC

Intel Customer Support

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