Re: kernel: -mpreferred-stack-boundary=2 ??

[Ville-Pertti Keinonen]

> > Anyhow, I'll repeat it here - stack alignment does *not* break
> > link-compatibility.  It does not change calling conventions, it just
> > adds padding after the args to ensure that local variables can be
> > predictably aligned.

> So, how does aligning stackframes affect the inherently static property
> of code size then?

Instructions are inserted to perform that alignment (add padding).
When the alignment is 2 (i.e. on 4-byte boundaries), no padding is
required in typical cases.


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