Re: au1550 oprofile

[Steve Lazaridis <slaz@fortresstech.com>]

I figured out the problem.
Only I'm not sure if it's actually a bug or not. :)

It seems as if it's in the userspace oprofile tools.

I commented out the following from oprofile/daemon/opd_trans.c   and it 
works fine now.
/* FIXME: this logic is perhaps too harsh? */
if (trans->current->ignored || (trans->last && trans->last->ignored)) {
      verbprintf(vmisc, "in the harsh logic\n");
      goto out;
}


Maybe it's just too harsh for MIPS platforms?  The same version of 
oprofile worked fine on my x86 workstation.

Thanks,
Steve



Steve Lazaridis wrote:
> Thats true,
> But my problem is that timer mode isn't even working
>
> Ralf Baechle wrote:
> > On Thu, Mar 16, 2006 at 09:22:11PM -0500, Steve Lazaridis wrote:
> >
> > > Has anyone successfully ran oprofile on an au1550?
> > > If so, was it in BigEndian mode?
> > >
> > > Are there any known issues with oprofile on au1xxx platforms?
> > Alchemy processors don't implement performance counters, so there are
> > by definition no issues ;-)  That unfortunately means you're stuck
> > with timer mode.
> >
> >   Ralf