[kaffe] Kaffe on XScale

[Dalibor Topic]

Thomas Winkler wrote:
> Hello, 

Hallo Thomas,

> I'm currently trying to compile kaffe for the the intel XScale (ARM, Big 
> Endian).

Fun :)

> I tried kaffe 1.1.4 as well as kaffe CVS HEAD (20041006). But I've run into 
> problems I could not manage to resolve on my own and I hope that somebody on 
> the list is able to help me.
> 
> Kaffe 1.1.4
> -----------
> 

> ../../../kaffe/kaffevm/support.c:852: internal compiler error: in 
> reload_cse_simplify_operands, at postreload.c:378
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.

That is an internal bug in gcc. I belive it is present in gcc up to 
3.4.2, possibly later too. If you want to see it fixed, please report 
the bug to the gcc developers. I don't think it has been reported yet :(

> Kaffe 20041006 (CVS HEAD)
> -------------------------
> 
> ../../../../kaffe/kaffevm/jit/methodcalls.c:200: internal compiler error: in 
> reload_cse_simplify_operands, at postreload.c:378

Looks like the same gcc error.

> 
> ../../../../kaffe/kaffevm/intrp/methodcalls.c:91: internal compiler error: in 
> reload_cse_simplify_operands, at postreload.c:378

And again the gcc ICE strikes from out of the blue:)

You could try bulding kaffe with libffi, I think I've read success 
reports on xscale with libffi in order to work around the gcc bug.

The problem is that the C code for system dependant method invocation 
for some reason seems to trigger a bug in gcc for xscale. It compiles 
fine for other arm flavors, so I'm quite sure it's a gcc bug. There is 
an alternative for the code, and it uses libffi. You need to explicitely 
enable it in configure, though.

cheers,
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