Re: objc native exceptions

[Richard Frith-Macdonald]

On 27 Jun 2008, at 18:47, Richard Frith-Macdonald wrote:

> On 27 Jun 2008, at 18:23, Andrew Pinski wrote:
>
> > On Fri, Jun 27, 2008 at 10:14 AM, Richard Frith-Macdonald <address@hidden 
> > > wrote:
> > > So this would appear to be a rather severe drawback as invocations  
> > > are used
> > > quite extensively.  Maybe the stack unwinding works if you used  
> > > libffi for
> > > your invocations, but libffi doesn't work on some platforms (eg  
> > > the debian
> > > 64bit intel box I develop on).
> >
> > libffi works on x86_64 as far as I know.  Also libffi supports
> > unwinding as it is needed to support GCJ :).
>
> I just updated by libff to the latest debian package (3.0.5-4) and  
> tried building gnustep-base with that ... it crashes when trying to  
> perform an invocation.  Possibly a problem with the way libffi is  
> used ... but I don't know how to fix it.

It turns out that this was a problem with memory protection causing a  
segmentation violation ... on my debian em64t system I got this to  
work by allocating memory using mmap rather than malloc.