Re: [avr-gcc-list] WinAVR - gcc 3.4.6 - AVR Studio - DuoCore PC - Stackpointer problem

[Paulo Marques]

Steffen Rose wrote:
> Do the avr-gcc know an optimization, that the stack frame for all 
> called functions are created within the first called function?

GCC usually inlines functions that are declared "static" and are used 
only once, even if they are pretty big, because it should be a win on 
register thrashing, prologues/epilogues, etc. It might also 
automatically inline functions that are "small enough".

However, I remember some people on LKML (where stack size is also a 
serious problem) complaining that gcc's prior to version 4 would 
accumulate the stack frame for all inlined functions on the top function.

Maybe you could try to compile with "-fno-inline -fno-inline-functions" 
to see if that makes a difference.

--
Paulo Marques - www.grupopie.com

"The face of a child can say it all, especially the
mouth part of the face."