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Original question:

TDA4VM: PSDKRA - Linking errors in build of vision_apps while testing new TIOVX user kernel

TDA4VM: PSDKRA - Turn off C6x compiler optimization for user kernel

sagarkirtany
Genius 4950 points

Part Number: TDA4VM

Hello,

I am working on PSDK 6.1.

I am attempting to port an algorithm which runs on one of the C6x DSP cores.

So I have created a user kernel named 'msi_vfs' in tiovx/kernels_j7.

Now, I need to turn off the optimization which is carried out by the C6x compiler for this user kernel.

The global C6x optimizer setting is present in tiovx/concerto/compilers/cgt6x.mak file.

How can I override this setting locally so that my user kernel is not optimized?

Thank you.

  • 0
    TI__Expert 5655 points

    In the local concerto.mak file you can use the CFLAGS variable to add compiler options.  Since these are typically compiler specific, you may want to surround it with a core or compiler specific condition in case you are trying to build this for multiple targets or compilers:  You can add something like this:

    ifeq ($(TARGET_CPU), $(filter $(TARGET_CPU), C66))
    CFLAGS      += -g -o0
    endif

    This basically adds the c66 compiler options "-g -o0" to the compiler command line for all files compiled in this concerto.mak file target.  Since this appears in the command line after the existing -o3 optimization flag, it will overwrite the -o3 and turn off optimizations.

    Jesse