C51 question

yeah i did get those errors

yeah i did get those errors

Each uncalled function starts a new call tree, unless you instruct the linker to strip uncalled functions.

Looking around in the Target options, where can i find to strip uncalled functions?

thanx!

Xarion

Don't forget to look through the linker manual, since that would probably be the best place to learn what the linker does, and what options it takes.

when i have (temporarily during development) uncalled functions, I use this 'trick'

skipbit = 0;
if (skipbit)
(
 uncalled_function();
}

Erik

Note that there are two linkers available for use with C51; viz, BL51 and LX51.
See: http://www.keil.com/c51/selector.asp

I think it's only LX51 that has the facility to remove uncalled functions...?

The alternative, of course, is to not have functions that you don't use!

Not sure what the advantage of that would be over, say:

#if 0
   uncalled_function();
#endif

Or even

#if DO_NOT_CALL
   uncalled_function();
#endif

Simply uncheck the 'Include in build' option for the relevant file(s).

Can also be applied to Groups.

If, like Erik, you don't use uVision, you could still build a similar effect into your preferred build system (.BAT file, or whatever)...

Oops - now I see it!!

My examples should be:

#if 0
// Definition of the function
void uncalled_function( void )
{
   // Your code here
}
#endif

:
:

#if 0
   uncalled_function();
#endif

and the advantage is then obvious.

Taking it a step further:

#if DO_NOT_CALL_THIS_FUNCTION
// Definition of the function
void this_function( void )
{
   // Your code here
}
#endif

:
:


#if DO_NOT_CALL_THIS_FUNCTION
   this_function();
#endif

or

/* ...

*/