Re: [Xen-ia64-devel] Mini-OS registers and libgcc

[Tristan Gingold <tgingold@xxxxxxx>]

On Wed, Feb 13, 2008 at 01:59:05PM +0100, Dietmar Hahn wrote:
> Hi Samuel,
> 
> comments are within the text!
> 
> Am Mittwoch, 13. Februar 2008 schrieb Samuel Thibault:
> > Hello,
> >
> > Dietmar Hahn, le Wed 13 Feb 2008 11:53:59 +0100, a écrit :
> > > Am Dienstag, 12. Februar 2008 schrieb Samuel Thibault:
> > > > Is there a reason for using -mfixed-range=f2-f5,f12-f15,f32-f127
> > > > when compiling Mini-OS?  Is it really needed since it doesn't
> > > > have a user-land? (though I guess some support would be needed in
> > > > switch_context for instance)
> > >
> > > To handle this in a clean way the trap_frame has to be expanded and some
> > > fp registers have to stored/restored in trap handling.
> >
> > Ok. Would this be needed in order to be able to use libgcc.a?
> 
> No, both things are independent from each other.

Humm not sure: libgcc uses f12-f15.

Tristan.

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