Xilinx Virtex4 FX PPC

Josh Boyer jwboyer at jdub.homelinux.org
Tue Aug 21 02:35:49 EST 2007

On Mon, 20 Aug 2007 10:00:54 -0600
Robert Woodworth <rwoodworth at 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.


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