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undefined reference to 'log'

STALIN
Intellectual 260 points

Hi,

I am using ccsv5(linux version) for runtime debugging of omapl138lcdk.I am running a c-code which involves 'log' and 'sqrt'.Even though I included math.h header ,the following error message appears

undefined reference to 'log'

undefined reference to 'sqrt'

any help is appreciated.

Thanks in advance

-Stalin

  • TI__Guru**** 171349 points

    Stalin,

    Header files are only part of the story, as they only declare the function but do not define it.

    Are you using GCC or TI ARM compilers? If TI ARM, these functions are defined in the runtime support library and you simply need to include it in your project. If GCC, you need to include the math library libm.a. Check this reference for details.

    If this is not your case, can you copy the build output to a text file and attach to this thread?

    Hope this helps,

    Rafael