Compiling cog 2363 in gentoo (amd 64)

So I hit the UUID problem that crashes VM and had to compile virtual
machine from scratch to get rid of it.
I assumed that to be easy job, but it took a while. To help others I
document the steps I had to take to build revision 2363 of Cog vm on
Gentoo (amd 64bit).
1) fetch sources from svn (svn export
http://squeakvm.org/svn/squeak/branches/Cog cog-vm)
2) 32bit chroot environment. Just could not make it compile without it
(http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1&chap=2)
3) emerge xorg-x11 to 32bit environment. One could probably emerge
something smaller but thid did the trick for plugin(s) requiring
OpenGL.
3) configure as the unixbuild/HowToBuild guides.
4) add #define HAVE_UUID_H to configure.h under bld-directory.
5) change platforms/unix/plugins/UUIDPlugin/sqUnixUUID.c
#include <uuid.h> -> #include <uuid/uuid.h>
6) make as the unixbuild/HowToBuild guides

It is likely that these changes could (and should) be made to the
source files and configuration script so that no manual steps would be
required. However I did not have time to do it. But when I finnish all
the pending tasks postponed by this sideroute I try to see
if I could propose a patch.

--
Panu

Thanks Panu. It is really nice when people spend time to document and share their findings.
I cc'ed the VM mailing list. I don't know why but something tell me that the UUID was finally fixes in latest VMMaker (not sure at all. And even less sure in Cog).

Thanks!

mariano

It turned out that I had to alter the configuration statements also.
It seems that network access caused seg fault when -O2 was used (gcc
(Gentoo 4.4.5 p1.2, pie-0.4.5) 4.4.5).
This is most likely a gcc problem. But finally I seem to have working
copy of Cog VM.

As an after thought it might be possible to 3d section in HowToBuild
guide might have done the trick without the chroot environment.
Problems just piled up and I decided to make sure that everything is
32bit and thus never actually got so far on the guide.

--
Panu

2011/3/6 Levente Uzonyi <[hidden email]>:
> 2363 is pretty unstable, it crashes a few seconds after startup on Ubuntu
> 10.04. Try building from 2361, or use the prebuilt 2361 and remove
> UUIDPlugin. Optionally you can try using my prebuilt version of the patched
> plugin, which is available here:
> http://leves.web.elte.hu/squeak/so.UUIDPlugin
> You should rename it to UUIDPlugin after downloading.

I should have removed the UUIDPlugin in the first place. That would
have been much more faster. Now it took quite long to make a commit.
:)
When I left the -O2 switch image seems to run fine on me. About half
hour and network access seems to work too.

--
Panu

Beware of blaming the compiler... without looking at the instructions
that cause the crash, and without diagnosing exactly what is the
problem, it's very easy to sweep violations of the relevant spec under
an optimization flag.  IME with HPS, debugging the exact cause of
failure has been very illustrating.

On 3/6/11 11:03 , Panu Suominen wrote: