Re: Possible incorrect usage of STACKALIGN in kern_exec

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Tue, Jan 24, 2012 at 10:13:39PM +0000, David Holland wrote:
> On Tue, Jan 24, 2012 at 09:55:30PM +0100, Joerg Sonnenberger wrote:
>  > > There is also a related PR but which is for threads stack alignment:
>  > > lib/39465
>  > 
>  > That bug is wrong. NetBSD uses SYSV ABI and that mandates 4 Bytes
>  > alignment for the stack. GCC versions before ~4.5 or so are just
>  > completely broken in this regard.
> 
> And yet there have been several reports that it still doesn't work
> with gcc 4.5...

Of course. You don't expect GCC to default to correct behavior
(-mstackrealign), do you?

Joerg