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TI Clang V2.1.3.LTS: _symval implicit declaration

JHi
Expert 2650 points

I have a problem, that I can't use _symval with TI Clang and CC26x1 processor. I would like to get a variable from the linker file, but the compiler complains when using the _symval

warning: implicit declaration of function '_symval' is invalid in C99 [-Wimplicit-function-declaration]

Why is this happening? Never had a problem before with C2000 and TM4C series.

JHi

  • +1
    TI__Guru**** 239845 points

    Thank you for reporting this issue.  I can reproduce the same behavior.  I filed the entry EXT_EP-11206 to have this investigated.  You are welcome to follow it with that link.

    Please consider this workaround ...

    #include <stdint.h>    /* for uintptr_t */

extern int linker_symbol;
#define LINKER_SYMBOL ((uintptr_t)&linker_symbol)

    Use LINKER_SYMBOL wherever you currently use _symval(linker_symbol). 

    Thanks and regards,

    -George