FFI for Squeak 3.8 Open Cobalt

>  
> (mutoh is the Squeak port maintainer. Please reply directly to me as the
> vm-dev list requires subscription.)
>
> I am trying to get Open Cobalt running on FreeBSD 7.1, Gnome 2.24. I
> installed Squeak 3.9 from ports and have a 3.10 image running fine.
>
> Open Cobalt is configured for Linux. The image is based on Squeak 3.8.
> To get it to run at all I had to modify the startup script, basically to
> use my squeak instead of the one that comes with the Linux version:
>
> =-=-=-=-=
>
> #!/bin/sh
> IMAGE="cobalt.image"
> DIR=`dirname $0`
> EXE="$DIR/bin/i686-pc-linux-gnu"
>
> # use command line arguments if present; else use default image
> if [ $1 ]; then
>     ARGS="$*"
> else
>     ARGS="$DIR/$IMAGE"
> fi
>
> # make source link if necessary
> if [ ! -r $DIR/CroquetV1.sources ] ; then
>         ln -s $DIR/bin/CroquetV1.sources $DIR/CroquetV1.sources
> fi
>
> # make libGL.so link if necessary
> if [ ! -f /usr/lib/libGL.so -a -f /usr/lib/libGL.so.1 ] ; then
>         if [ ! -f  "$EXE/libGL.so" ] ; then
>                 echo Creating libGL.so symlink in $EXE
>                 ln -sf /usr/lib/libGL.so.1 "$EXE/libGL.so"
>         fi
> fi
>
> # Slight modification to cobalt.sh - line 26:
> # make libopenal.so link if necessary - OpenAL is a good thing
> if [ ! -f "$EXE/libopenal.so" -a -f /usr/lib/libopenal.so.1 ] ; then
>     echo Creating libopenal.so symlink in $EXE
>     ln -s /usr/lib/libopenal.so.1 "$EXE/libopenal.so"
> elif [ ! -f "$EXE/libopenal.so" -a -f /usr/lib/libopenal.so.0 ] ; then
>     echo Creating libopenal.so symlink in $EXE
>     ln -s /usr/lib/libopenal.so.0 "$EXE/libopenal.so"
> fi
>
> #exec "$EXE/squeak" -plugins "$EXE" \  <--- my changes  --gd
> #        -vm-display-X11 -swapbtn \
> #        $ARGS
> exec squeak -plugins "$EXE" $ARGS
>
> =-=-=-=-=
>
> This will run the FreeBSD version of squeak, the vm that comes with the
> 3.9 port:
>
> $ squeak -version
> 3.9-7 #1 Thu Apr  9 01:24:21 HST 2009 cc
> Squeak3.9alpha of 4 July 2005 [latest update: #7021]
> FreeBSD slate01 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Thu Jan  1 14:37:25
> UTC 2009     [hidden email]:/usr/obj/usr/src/sys/GENERIC
> i386
> default plugin location: /usr/local/share/squeak/3.9-7/*.so
>
> As cobalt loads I get this on the error output:
>
> $ ./cobalt.sh
> ioLoadModule(./bin/i686-pc-linux-gnu/SqueakFFIPrims):
>   Shared object "libc.so.6" not found, required by "SqueakFFIPrims"
> /usr/local/bin/firefox
> /usr/local/bin/gnome-open
> $
>
> When I drag the cobalt ball I get:
>
> setsockopt: No buffer space available
> setsockopt: No buffer space available
> fcntl: Device not configured
>
> Here squeak hangs and must be killed (kill -9)
>
> If I do not drag the ball I can work in the cobalt window, same as
> squeak. I tried loading the FFI package but only 3.9 and 3.10 are
> available, and will not load. FFI will load in my 3.10 image, but that
> won't help me.
>
> Is there a FreeBSD library I need to substitute for libc.so.6? I have
> one at /usr/compat/linux/lib/libc.so.6 but I am not trying to run cobalt
> in Linux mode.
>
> Any thoughts?

> > If that passes, you should run "FFITester testAll" next to ensure that
> > the FFI is working properly in your environment.
>
> This generates an error "Unable to find function address" at the first
> test in testAll. errCode is 13.
>
> >
> > When that works, it's time to try launching OpenGL via:
> >
> > (OpenGL newIn: (0@0 corner: 100@100))
> > clearWindow: #(1 0 0 1);
> > swapBuffers.
> >
> I did not attempt ... should I?
>
> I am thinking I should compare the methods added when I load
> SqueakFFIPrims to my squeak3.10 image to the methods in the cobalt
> image, to see if SqueakFFIPrims is loaded. After I go out and enjoy the
> beautiful day a bit.