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From: Josh Boyer <jwboyer@jdub.homelinux.org>
To: Robert Woodworth <rwoodworth@securics.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: Xilinx Virtex4 FX PPC
Date: Mon, 20 Aug 2007 11:35:49 -0500	[thread overview]
Message-ID: <20070820113549.7cc3ac45@weaponx.rchland.ibm.com> (raw)
In-Reply-To: <1187625654.6336.28.camel@PisteOff>

On Mon, 20 Aug 2007 10:00:54 -0600
Robert Woodworth <rwoodworth@securics.com> wrote:

> Problem 2:  Build my own rootfs.
> If I try to build my own programs (busybox and bash at this point) with
> shared libc using the same glibc from my toolchain, I get an "Illegal
> instruction" error.  Is my glibc not compatible with my Xilinx PPC 405??
> 
> 
> If I try to build a rootfs with debian ppc packages I have the same
> "Illegal instruction" error.
> 
> 
> 
> Question 1:
> Do I need a special glibc for the Xilinx PPC 405????  
> Does a normal PPC glibc have more "advanced" instructions compiled in
> that will not work on a Xilinx PPC 405??

Make sure you're building glibc with soft-fp, or make sure you have
CONFIG_MATH_EMULATION enabled in your kernel.  The PPC 405 doesn't have
an FPU.

josh

  reply	other threads:[~2007-08-20 16:36 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-20 16:00 Xilinx Virtex4 FX PPC Robert Woodworth
2007-08-20 16:35 ` Josh Boyer [this message]
2007-08-20 17:26   ` Robert Woodworth
2007-08-20 17:42     ` Grant Likely
2007-08-20 17:50     ` Stephen Neuendorffer
2007-08-21 22:14     ` Clemens Koller
2007-08-20 17:50 ` Grant Likely
2007-08-21  8:52 ` Stelios Koroneos
2007-08-21 12:57   ` Josh Boyer

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