Re: [Sablevm-developer] Porting sablevm to powerpc

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

W li=B6cie z nie, 18-08-2002, godz. 02:02, Mark Wielaard pisze:=20
> OK, after spending a couple of hours learning powerpc assembly and the
> gcc asm constraints I think that I have something that might be what is
> needed for powerpc. Unfortunately it doesn't work correctly yet, but
> looking at the output of --verbose I get the impression that we are
> almost there. Here are the last 15 lines for sablevm --verbose Hello:
It looks like PowerPC is the first big-endian system SableVM is being
compiled on. We can suspect that it is causing some problems.
Don't know exactly how's that about PowerPC accepting both big and
low-endian data[1] in Linux.

I checked data sizes for types used in jni_system_specific.h - they
_are_ the same as for ia32 and alpha, so no mistake there.
page size _is_ 4 kb according to [2].

about your assembler code - if you're not sure if it works:
1) ask at some devel/port list, for ex. debian-powerpc@l.d.o.

2) you could also _for testing only_ disable assembler stuff
and put "C" version there. If it sometimes goes beyond the
point it is now - then it's sth. wrong with this assembler part.

Keep in mind that if you do that - SableVM will probably randomly
break in different places or sth.

I have requested installation of build-depends of SableVM on
PowerPC(unstable), ia64(woody) and hppa(woody) debian developer's
machines.

PowerPC - because you started it and I'd like to test it too.
ia64 - because it's crucial to get _this_ arch working - we all
  will be using it (at some point in the future)
hppa - because it's already using gcc 3.x - and there can be some
  interesting differences to work out (may be), however I don't expect
  too much of them. Anyway - transition to gcc 3.2 for all debian arches
  will start soon.

I'll send a status report as soon as I have sth interesting ;-)

That's really great you started the PowerPC port.
Keep up with it!

Regards

					Grzegorz B. Prokopski


[1]
http://developer.apple.com/techpubs/hardware/DeviceManagers/pci_srvcs/pci_c=
ards_drivers/PCI_BOOK.24e.html
[2] http://www.cwi.nl/~manegold/Calibrator/DB/DB.shtml