Re: Possible incorrect usage of STACKALIGN in kern_exec

[David Holland <dholland-tech%netbsd.org@localhost>]

On Tue, Jan 24, 2012 at 11:30:54PM +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?

No, but if we need to change our gcc specs so this works in -6,
perhaps we should do it this week...

-- 
David A. Holland
dholland%netbsd.org@localhost