Re: [Sablevm-developer] IA64 saga continues...

[Grzegorz B. P. <ga...@de...>]

W li=B6cie z wto, 18-02-2003, godz. 17:20, Grzegorz B. Prokopski pisze:=20
> Hi!
>=20
> I am trying to get SableVM working on UP IA64 machine with inlined
> threading engine. Here's what I have now.
An update.

I am almost sure that the code for cache flusing I am using for IA64
is right. I looked at=20
http://www.atomised.org/docs/XFree86-4.2.1/compiler_8h-source.html
and copied this:
__asm__ __volatile__ ("fc %0;;; sync.i;;; mf;;; srlz.i;;;" :: "r"(pword)
    : "memory");

I don't think that the reason of segfaulting w/ inlined-threading on
IA64 is cache coherency problem. I'd rather look for it somewhere else.
SableVM crashes in instructions_preparation_inlined_threaded.c, but
gdb doesn't recognize this file because it's included in interpreter.c.
hmm... strange, but I get this:
(gdb) break interpreter.c:419
No source file named interpreter.c.
? how to debug that beast ?

Anyway - in the meantime I fixed small bug that was causing sablevm
to fail to build on alpha and... added alpha cache flusing
__asm__ __volatile__ ("mb; call_pal %0 #imb" :: "i"(134) : "memory");
so that inlined engine could work. I am very curious if it will
actually make SableVM work fully on alpha. Unfortunatelly I don't
have such great access (w/ root) to an alpha machine as I have to IA64
(thanks to Bdale) so it's a bit hard to tell now. It was uploaded and
should build at least ;-)

Tomorrow's gonna be a day too. (self->sleep)

					Grzegorz B. Prokopski
--=20
Grzegorz B. Prokopski <ga...@de...>
Debian http://www.debian.org/