[Gm2] Re: Debugging Problems on 64-bit systems

[jgoyo]

Quoting Gaius Mulley <address@hidden>:

> address@hidden writes:
>
> > Gauius:
> >
> > I am encountering problems using gdb to debug gm2-compiled programmes
> > on HP-UX and Solaris-64 (Sparc).  Gdb reports that certain debugging
> > parameters are out of range and will not load the binary.  I have no
> > problem on Solaris-32 (Sparc).  What sort of information would help
> > you track this down?
> >
> > john
>
> Hi John,
>
> I'm currently unearthing quite a few symbol table bugs in gm2 which
> are exposed heavily during optimisation.  (The GCC translated
> representation of the m2 symbols rather than the pure m2 front end) -
> this might well be causing some grief on Solaris or any OS -
> especially if it worked say March time or before.  At present my
> modifications are incomplete so I'll hold off from committing them.
> But I hope to find the last two remaining bugs (or so) in the near
> future.

This actually makes me feel better.  (I was wondering what I was doing  
wrong in the build. #6-)

> On another topic do you know whether QEMU can emulate Solaris 10
> and sparc-64 bit hardware?  Assuming that Solaris is free etc. it
> might be possible to create a 4GB installation image, run it all under
> QEMU and build gm2/gdb - this would be a pretty useful method of
> regression testing.  I'll be attending the gcc summit and one of the
> speakers will be addressing QEMU and gdb.

There is a sparc64 tree the last time that I looked at QEMU (but I was  
using it to emulate PPC and never tried the sparc64 bits).  Solaris is  
free with registration.  I have downloaded it a few times.  What you  
suggest certainly sounds feasible.  If I find out anything, I will  
certainly pass the information on.

john

> regards,
> Gaius