How to know what function called another

Question

I wanna know if there is any way to know where the function currently in execution was called, this is, in what file and line. I\'m using C language, and I\'m looking for so

Answer 1

__FILE__, __LINE__ etc are preprocessor macros which can easily be expanded to the correct value at compile time. A function may get called from many possible places, so that can't be done via the preprocessor. Finding out the caller's name would be very difficult; it involves walking the stack and matching addresses to symbols.

If you can live with a small hack, this might work (untested):

/* Add a called argument to your function */
void _myFunction(char *caller, int more_args)

/* And define a macro that adds it automagically */
#define myFunction(a) _myFunction(__FUNCTION__, a)