Re: [Qemu-devel] qemu simple user mode testing (arm, ppc, sparc)

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

Interesting ! I thought that SPARC was the less stable target (I left 
some register window exception problems in it)... I think the problems 
on ARM are related to FPU emulation as it is not implemented yet (but I 
have a pending patch to merge).

ARM and x86 use direct translated block chaining while it is not 
implemented yet on SPARC and PowerPC, so it explains the performances 
you get.

Can you send me (or make available somewhere) at least the static 
executables ? If you send the dynamic ones, try to add all the relevant 
dynamic libraries.

Fabrice.

Karel Gardas wrote:
> Hello,
> 
> I have performed simple testing of qemu-0.5.2 (vide also my last email
> about ARM emulation issues). I have used these tests:
> 
> 1) C++ hello world example using iostreams
> 2) C++ hello world example using C stdio
> 3) C hello world example using C stdio
> 4) bogomips test
> 
> Tests 1-3 were tested in two versions, one linked dynamically and one
> staticaly.
> 
> The results are (grouped by qemu-<processor>)
> 
> qemu-arm:
> 
> 1) stat: failed
>    dyn: failed
> 2) stat: run
>    dyn: failed
> 3) stat: run
>    dyn: failed
> 4) run (160 BogoMIPS -- very good!)
> 
> qemu-ppc:
> 
> 1) stat: failed
>    dyn: failed (qemu segfaults)
> 2) stats: run
>    dyn: failed (qemu segfaults)
> 3) stat: run
>    dyn: run
> 4) run (40 BogoMIPS)
> 
> qemu-sparc:
> 
> 1) stat: run
>    dyn: run
> 2) stat: run
>    dyn: run
> 3) stat: run
>    dyn: run
> 4) run (38 BogoMIPS)
> 
> 
> Where it is not mentioned, binary failed with segfault, where is mentioned
> ``qemu segfaults'', QEMU segfaults directly.
> 
> My question is: is there anybody improving QEMU ARM support? Anyway, at
> least sparc results looks very good, so I will probably try to test
> qemu-sparc with some not so simple C++ application. Also is there anybody
> here working on MIPS (mips32) support?
> 
> Thanks,
> 
> Karel
> --
> Karel Gardas                  kgardas@objectsecurity.com
> ObjectSecurity Ltd.           http://www.objectsecurity.com
> 
> 
> 
> 
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