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Re: [Qemu-devel] ARM
From: |
Daniel Jacobowitz |
Subject: |
Re: [Qemu-devel] ARM |
Date: |
Thu, 10 Jul 2003 12:17:18 -0400 |
User-agent: |
Mutt/1.5.1i |
On Wed, Jul 09, 2003 at 09:49:33PM +0200, Fabrice Bellard wrote:
> Daniel Jacobowitz wrote:
> >I was just playing with the ARM support, it's great to see it taking
> >shape :) Fabrice, are you still investigating it, or does it work for
> >you? My local ARM setup crashes a few hundred instructions into ld.so;
> >a loop runs for too long and hits the top of the stack.
> >
>
> With my latest commits it is working: QEMU can launch dynamically linked
> 'ls' and 'bash' processes. I will provide soon a binary archive so that
> people can at least try it if they have problems.
Still doesn't work here. I've attached the debugging output if you're
curious; I won't have time to debug it properly until next week. It
looks like something wrong with the conditional jump.
> Warning: no FPU emulation is done. I just added the necessary code to
> skip the few FPU instructions present in the libc. If anyone has ideas
> about FPU on ARM, I am interested. Unfortunately the Linux distributions
> seem to use the kernel based NetWinder FPU emulator.
Yes; here we use userspace software floating point generally instead.
Hardware which actually has the FPA unit is rare (is there any
supported?)
> I tested the ARM support with an ARM glibc-2.2.5 from a debian 3.0
> installed on a StrongARM board.
My failing test is from a later version of glibc and GCC.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer
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