From: Dan Malek <dan@mvista.com>
To: Mark Pilon <mpilon@midrivers.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: debugging, kernel port status update
Date: Tue, 23 Oct 2001 18:01:24 -0400 [thread overview]
Message-ID: <3BD5E8B4.ED0BD911@mvista.com> (raw)
In-Reply-To: 3BD5DE9F.17679D05@midrivers.com
Mark Pilon wrote:
> 0) I built a generic binutils/gcc/glibc for the PPC -- notes
> available.
It's probably easier just to download this from someplace like mvista.com.
> I may have to tweak this compiler if I get FPU support along w/
> instructions which aren't a part of this uP's instruction set.
There should be sufficient options to the compiler that wouldn't
require rebuilding. I suspect telling it to use a 603 core with 405
instruction scheduling will make it work. Actually, just a 603
will make it work, the additional scheduling hints may improve
performance.
The bigger challenge is the kernel mofication necessary to properly
context switch the FPU on this part.
> -- the #if 0 portion was what was already in head_4xx.S (w/o the if 0)
> but didn't work. the #else case was taken from head.S and seemed to
> work.
You are working with a really old kernel. Find a newer one. I would
recommend the 2_4_devel tree for what you are doing.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2001-10-23 22:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-23 21:18 debugging, kernel port status update Mark Pilon
2001-10-23 22:01 ` Dan Malek [this message]
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