[kaffe] Does Kaffe's JIT support ARM?

Jari Korva jpkorva at iki.fi
Fri Oct 28 01:18:12 PDT 2005


Hi Dalibor,

I think that all patches that I have suggested are in cvs. The problem now
is that the reason to current problems can't be found just by debugging
(at least not easily) and me (and others who have observed the same
problem) do not know enough about Kaffe internals (and haven't had enough
time to sit down and educate ourselves :(

http://www.kaffe.org/pipermail/kaffe/2005-August/103210.html

And don't get me wrong, I'm not blaming Kaffe. Last year when I was
starting my project I tested around ten free/open source virtual
machines and contacted four commercial vendors and Kaffe was the only one
that worked on my big-endian XScale!

Cheers,
  Jari


On Thu, 27 Oct 2005, Dalibor Topic wrote:

> On Thu, Oct 27, 2005 at 11:48:58AM +0200, Kevin D. Kissell wrote:
> > A better question might be whether Kaffe's JIT supports
> > any architecture other than x86.  I had it 98% working
> > for MIPS under Linux a couple of years ago, failing only
> > a handfull of tests and working well enought to run
> > the embedded caffeinemark (with very good results,
> > I might add), but subsequent enhancements and fixes
> > to Kaffe broke it completely, and I gave up on it.
>
> Yeah ... I'd love to see arm and mips pick up steam again, and if you
> are interested in merging your improvements in (or Jari is interested in
> making his patches go in, if some of his patches were dropped, too), you
> can surely get CVS access and improve arm and mips support.
>
> > I've heard that the story is pretty much the same
> > for other RISC-like architectures.  Does *anyone*
> > have it working on a non-x86?  PPC maybe?
>
> Sparc seems to have held up nicely over the years, without requiring
> much intensive maintainance (nicely meaning <3 regressions in general).
> I don't know why, afair there was noone specifically maintinaing Kaffe
> in shape on sparc in the last three years, but it seems to have worked
> anyway. Mips and arm on the other hand seem to have been hit harder by
> changes in the rest of the system. Off the top of ny head, I don't know
> why that would be the case: mips and arm had a lot more interest in
> patches and submissions on the lists than sparc did, afair.
>
> That's the only one, afaict. Kiyo has been working on m68k jits as well,
> though I don't have an m68k around to say how well those have stood the
> test of time.
>
> The rest would really need more maintenance, a switch to use libffi if
> available (seems to help with things on mips, and arm, for example), etc.
>
> cheers,
> dalibor topic
>
> >
> > 		Regards,
> >
> > 		Kevin K.
> >
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 - Jari Korva -
  - jari.korva at iki.fi -
  - +358-40-756 4812 -



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