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Date:      Mon, 11 Nov 2002 19:02:24 +0100
From:      Wilko Bulte <wkb@freebie.xs4all.nl>
To:        John Baldwin <jhb@FreeBSD.ORG>
Cc:        Poul-Henning Kamp <phk@critter.freebsd.dk>, alpha@FreeBSD.ORG, Andrew Gallatin <gallatin@cs.duke.edu>
Subject:   Re: ev4/5/6 issue ?
Message-ID:  <20021111190224.B50999@freebie.xs4all.nl>
In-Reply-To: <XFMail.20021111122315.jhb@FreeBSD.org>; from jhb@FreeBSD.ORG on Mon, Nov 11, 2002 at 12:23:15PM -0500
References:  <55809.1037029315@critter.freebsd.dk> <XFMail.20021111122315.jhb@FreeBSD.org>

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On Mon, Nov 11, 2002 at 12:23:15PM -0500, John Baldwin wrote:
> 
> On 11-Nov-2002 Poul-Henning Kamp wrote:
> > In message <15823.51765.171947.796322@grasshopper.cs.duke.edu>, Andrew Gallatin
> >  writes:
> > 
> >>Your initial assertion that this might be happening because the
> >>libraries are built for ev6 on beast could be true.  Can you verify
> >>that that 12001f4e4 is indeed inside a library function using nm? 
> > 
> > Well, GDB said that much already.
> > 
> >>That doesn't solve the initial problem of why your make was busted,
> >>though.  If its in the libs, then your libs are likely busted too.
> >>Perhaps you'll also need to build a libc on beast, explicitly
> >>setting your cpuflags to ev4.  Or perhaps the compiler is emitting
> >>FIX instructions when it should not.
> > 
> > I think ev4 should be the default on beast.
> 
> This release wasn't built on beast.  It was built on a DS20 (which
> is an EV6).  However, it should be built with '-mcpu=ev4 -mtune=ev6'
> so it should not be using any !ev4 instructions.  Perhaps -mtune
> is broken?
> 
> Hmm, actually, the whole release was compiled with

Is this 4.7R we are talking about?

> '-mcpu=ev5 -mtune=ev5'.  I do know that on alpha gcc "adjusts" itself
> to whatever CPU it is built on, so maybe because the gcc in the release
> make world was built on an EV6 it thinks it can emit EV6 instructions?

I tested 4.7-RCs on EV4 machines (AS200, AS500, PC64) without incident.

Poul: what machine did you have? /me has a secret cache of Alpha CPUs
here.. :-P

-- 
|   / o / /_  _   				wilko@FreeBSD.org
|/|/ / / /(  (_)  Bulte				Arnhem, the Netherlands

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