[kaffe] Illegal Instruction with ARM and JIT

[Rafael Teixeira]

Oops, as the problem is in the JIT, I think some of its code
generation rules may have to be tailored (conditional compilation or
runtime detection) according to the target cpu subspecification. Sorry
for quick, but probably inappropriate, answer I gave before...

:)

On 8/10/06, Rafael Teixeira <monoman at gmail.com> wrote:
> Probably some adjustment in the gcc configurations for ARM  may be
> needed as ARM720T probably implements a subset of the ARM instruction
> set targetted by Kaffe (I think it targets full V5).
>
> Probably a better solution is to have a more specific target defined
> for older or simplified ARM implementations.
>
> Hope it helps,
>
> On 7/29/06, Andreas Kielkopf <a.kielkopf at gleisplanspiel.de> wrote:
> > Hello
> >
> > We also tried to compile Kaffe for the ARM720T and have the same
> > Problem.
> > The Interpreter works, but if we try to use the JIT, kaffe stops with an
> > "Illegal Instruction". We tried to debug, but we couldn't get the
> > debugger to work on our Target.
> >
> > We also noticed a diffrence between our Target (Illegal Instruction) and
> > the same binary running in the "Scratchbox". In Scratchbox the same
> > binary worked without an "Illegal Instruction".
> >
> > It would be very fine for us, to be able to use the JIT on our target.
> > So we hope anyone knows the solution.
> >
> >
> >  On Fri, 2006-07-28 at 12:01 -0700, kaffe-request at kaffe.org wrote:
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> > > Today's Topics:
> > >
> > >    1. Segmentation fault using JIT on ARM (Pablo Roman)
> > >
> > >
> > > ----------------------------------------------------------------------
> > >
> > > Message: 1
> > > Date: Fri, 28 Jul 2006 12:30:00 +0200
> > > From: Pablo Roman <pablo at microelec.uab.es>
> > > Subject: [kaffe] Segmentation fault using JIT on ARM
> > > To: Kaffe mailing list <kaffe at kaffe.org>
> > > Message-ID:
> > >       <80344857582B9C4ABFCAB5EFCC98EAFE097D85 at umem.microelec.uab.es>
> > > Content-Type: text/plain; charset=utf-8
> > >
> > > Hello,
> > >
> > > Here, at my University department, we are trying to run Kaffe on a single board computer with an arm9.
> > > We've managed to run it with the interpreter engine but when we try to run it with the JIT one we get a segmentation fault. I think JIT is supported on ARM as I've seen some people using it successfully.
> > >
> > > We've tried Kaffe 1.1.6, 1.1.7 and CVS version with GCC 3.4.4 and 4.0.1 using this configure parameters (this is using the SBC provider compiler but I also tried GCC 4.0.1 built with crosstool and got the same result):
> > > ../kaffe-1.1.7/configure --prefix=/usr/local --host=arm-linux --with-kaffe-nanox-awt --with-nanox-include=/opt/emlix/netdcu8/microwindows/src/include --with-nanox-library=/opt/emlix/netdcu8/microwindows/src/lib --with-include=/opt/emlix/netdcu8/src/linux26/linux26/include --with-libraries=/opt/emlix/netdcu8/src/linux26/linux26/lib/ CC=arm-linux-gcc CXX=arm-linux-g++ CPP=arm-linux-cpp LD=arm-linux-ld KAFFEH=/home/kaffe/bin/kaffeh --with-engine=intrp --without-classpath-gtk-awt --disable-vmdebug --disable-debug --without-kaffe-x-awt --without-kaffe-gtk-awt --without-x --disable-gtk-peer
> > >
> > > I've searched a lot and tried all what I know. I hope someone had the same problem and found a way to solve it.
> > > Lots of thanks, and sorry for my bad English
> > >
> > >
> > >
> > > ------------------------------
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> > > End of kaffe Digest, Vol 26, Issue 42
> > > *************************************
> > >
> > --
> > Andreas Kielkopf <a.kielkopf at gleisplanspiel.de>
> >
> >
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> >
>
>
> --
> Rafael "Monoman" Teixeira
> ---------------------------------------
> "The reasonable man adapts himself to the world; the unreasonable one
> persists in trying to adapt the world to himself. Therefore all
> progress depends on the unreasonable man." George Bernard Shaw
>


-- 
Rafael "Monoman" Teixeira
---------------------------------------
"The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man." George Bernard Shaw