Rosimildo is a star! (was:RE: Powerpc and C++ - compiler query)

[Rosimildo da Silva]

Nick.SIMON at syntegra.bt.co.uk wrote:
> 
> > -----Original Message-----
> > From: Rosimildo da Silva [mailto:rdasilva at connecttel.com]
> > Sent: 27 July 2000 00:12
> > To: Nick.SIMON at syntegra.bt.co.uk
> > Cc: rtems-users at oarcorp.com
> > Subject: Re: Powerpc and C++ - compiler query
> >
> >
> 
> > Nick,
> >
> > do these tasks have try/catch blocks ? If so, try to remove them
> > and isolate the problem.
> 
> Yes they do; but removing the exception handling is non-trivial (used
> throughout dozens of sources).  I'm quite convinced eh is the cause of the
> problem.


Ok. Try to recreate your scenario with a small test program, where you
can easily remove/add C++ exceptions ( try/catch blocks ).


> 
> > Remember that we have added
> > multi-threading capabilities when handling C++ exceptions.
> > I guess in beta3a was exactly when it was introduced.
> 
> If b3a fixes the problem I'll be very happy indeed!  But doesn't this
> require compiler changes?


Yes. You need the toolset for that beta release.

> 
> >
> > lib/libc/gxx_wrappers.c implements the functions called by GCC
> > to provide thread-safe exceptions. You might be able to play
> > with it, and see if it is something there. I have added a
> > preprocessor "flag" in there in case someone needs to
> > debug this a little. :-)
> >
> 
> I'll take a look at this as soon as I can get through to the OAR site.
> Thanks for holding out hope - I thought we were going to have to remove all
> our exception stuff and put in "traditional" error handling, at which my
> object-purist colleague would have thrown a major wobbler.
> 
> -- Nick Simon

Well, as one OO purist myself, I'll tell you, do not do that. ! :-).
Have fun, and debug this a little. :-).


-- 
Rosimildo da Silva            rdasilva at connectel.com 
ConnectTel, Inc.              Austin, TX -- USA      
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