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Re: GCC 3.4 and glibc/nptl: Cancellation broken


On Thu, Jan 22, 2004 at 06:38:59PM +0100, Andreas Jaeger wrote:
> > One way to get around this quickly could be to:
> >
> > -  size = dwarf_reg_size_table[index];
> >    ptr = context->reg[index];
> >
> > +  if (sizeof (_Unwind_Ptr) == sizeof (_Unwind_Word))
> > +    return * (_Unwind_Word *) ptr;
> > +
> > +  size = dwarf_reg_size_table[index];
> >    /* This will segfault if the register hasn't been saved.  */
> >    if (size == sizeof(_Unwind_Ptr))
> >      return * (_Unwind_Ptr *) ptr;
> >
> >    if (size == sizeof(_Unwind_Word))
> >      return * (_Unwind_Word *) ptr;
> >
> >    abort ();
> >
> > in _Unwind_GetGR and similarly with _Unwind_SetGR.
> 
> Can you test that?

Sure, though probably not today.  Though it is quite obvious it would work.

> > As soon as I implement (or anyone else beats me to do it)
> > http://sources.redhat.com/ml/binutils/2003-12/msg00211.html
> > GCC driver should link all non-static binaries with:
> > --start-only-if-used -lgcc_s --end-only-if-used
> > and things will work just fine.
> 
> I expect this fixes it also and it's fine with me.
> 
> The question is how we solve this for the 3.4.0 release.  With the
> current state, GCC 3.4 is not able to compile glibc properly and we
> should fix this.  If your binutils patch will be ready by then and we
> can add the needed configure magic, then let's wait - and I'll open a
> bugzilla for this...

I see such a patch possible earliest a month from now; when I looked
briefly at it it is not exactly small patch and I'm quite busy these days.

	Jakub


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