Re: [Qemu-devel] ARM

[Fabrice Bellard <fabrice.bellard@free.fr>]

which version of x86 gcc do you use ? It seems to be a problem with x86 
coge generator. Did you take my latest commit in exec.h ? The 'return' I 
added in it does not seem to be generated in the x86 code.

Fabrice.

Daniel Jacobowitz wrote:
> 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.