[Vm-dev] Building VM on 64-bit machines

[Martin Kuball]

Am Sunday 20 May 2007 schrieb Philippe Marschall:
> 2007/5/20, Mandeep Gill <mandeepg at gmail.com>:
> > Hi,
> >
> > I am trying to build the Squeak VM on 64-bit linux with gcc 4.1 but am
> > having problems with both compiling the sources and running images.
> > I'm found some information on www.squeakvm.org/squeak64, however I'm
> > not sure how up to date it is.
> >
> > I've downloaded the latest sources from the squeak-vm subversion
> > repository and have tried building it using several different compile
> > options.
> >
> > Trying to compile as per the standard instructions succeeds, but I am
> > not sure what if it compiles a 32 or 64 bit VM. Regardless this VM
> > crashes using the standard Squeak3.9-final-7067 image with a
> > segmentation fault.
> >
> > "16256940 SmalltalkImage>snapshot:andQuit:embedded:
> > 16256824 SmalltalkImage>snapshot:andQuit:
> > 16256396 SmalltalkImage>saveImageInFileNamed:
> > ...
> > 16243080 PasteUpMorph>doOneCycle
> > 15589312 [] in >spawnNewProcess
> > 15589496 [] in BlockContext>newProcess
> > Aborted (core dumped)"
> >
> > I found a 64-bit image sq64-10-dtl.image on
> > http://www.barnet.sk/software/squeak however the VM will not load this
> > either, giving the error
> >
> > "This interpreter (vers. 6502) cannot read image file (vers. 68000).
> > Press CR to quit..."
> >
> > If I run configure with the options "with-src=src64" or
> > "with-src=src32" (as I have 32bit compatibility libraries installed)
> > the compile exits with
> >
> > "gcc -g -O2 -DLSB_FIRST=1 -o squeak disabledPlugins.o version.o
> > -Wl,--export-dynamic  vm/vm.a B2DPlugin/B2DPlugin.a
> > BitBltPlugin/BitBltPlugin.a FilePlugin/FilePlugin.a
> > SocketPlugin/SocketPlugin.a -lutil -ldl -lm -lnsl vm/vm.a -Wl,--rpath
> > -Wl,/usr/local/lib
> > vm/vm.a(sqVirtualMachine.o): In function `sqGetInterpreterProxy':
> > /home/mandeep/dev/tmp/squeak/squeak-svn/platforms/Cross/vm/sqVirtualMa
> >chine.c:202: undefined reference to
> > `obsoleteDontUseThisFetchWordofObject'
> > /home/mandeep/dev/tmp/squeak/squeak-svn/platforms/Cross/vm/sqVirtualMa
> >chine.c:333: undefined reference to `fetchLong32ofObject'
> > /home/mandeep/dev/tmp/squeak/squeak-svn/platforms/Cross/vm/sqVirtualMa
> >chine.c:334: undefined reference to `getThisSessionID'
> > /home/mandeep/dev/tmp/squeak/squeak-svn/platforms/Cross/vm/sqVirtualMa
> >chine.c:335: undefined reference to
> > `ioFilenamefromStringofLengthresolveAliases'
> > /home/mandeep/dev/tmp/squeak/squeak-svn/platforms/Cross/vm/sqVirtualMa
> >chine.c:336: undefined reference to `vmEndianness'
> > collect2: ld returned 1 exit status"
> >
> > Is anyone running Squeak currently on a 64bit system - what needs to
> > be done to get a basic VM and image (32 or 64 bit) working?
>
> All the people I know running Squeak on 64bit systems (including
> myself) run the 32bit VM in emulation mode.

I'm using a 64bit VM (with a 32bit image) for more than a year now. After 
fixing the bug in sqMemoryAccess.h and a problem with networking I never 
had a problem with the vm.

Building the VM for 32bit images is very easy. Just checkout the sources 
and run configure and make. Worked for me.

Martin