On Sat, Jun 27, 2015 at 03:09:19PM +0200, Philippe Gerum wrote:
> On 06/27/2015 02:22 PM, Michael Haberler wrote:
> > ATM we're sorting through the machinekit xenomai3 transition on debian
> >
> > I assume that users will continue to run xenomai2 kernels for a long time,
> > so we work towards separate (but hopefully coexisting-in-peace) packages
> > for Xenomai2 and Xenomai3 (startup is driven by kernel autodetection, so
> > booting a different kernel chooses the right runtime)
> >
> > The libxenomai-dev and libxenomai1 in debian are all xenomai2 atm, but I
> > assume Xenomai3 equivalents will appear eventually
> >
> > I hope these will be able to co-reside on the same host?
> >
> > Ideally suggesting the Xenomai3 packages would be separate, be named
> > differently, and not supersede any installed Xenomai2 packages?
> >
> >
> > (or am I blundering and I can run applications linked against the Xenomai3
> > libraries on a Xenomai2 kernel? my tests so far indicate - not)
> >
>
> Not possible. Xenomai 2 uses kernel services provided by the I-pipe
> compiled for legacy operation mode. Xenomai 3 wants this mode disabled.
The two kernels have different ABIs anyway. I think what Michael
wants to do is to also have the two patched kernels installed and
reboot (or kexec?) to switch from one to the other.
--
Gilles.
https://click-hack.org
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