Re: 64bit: C++ templates

["Yaakov (Cygwin/X)" <yselkowitz at users dot sourceforge dot net>]

On 2013-05-22 03:10, Corinna Vinschen wrote:
> On May 20 11:26, Corinna Vinschen wrote:
> > On May 20 01:59, Yaakov (Cygwin/X) wrote:
> > > On 2013-05-16 03:25, Corinna Vinschen wrote:
> > > > Some more testing now showed clearly that this problem is related to the
> > > > high address used as base addresses in the Cygwin toolchain.  If you
> > > > build the harfbuzz DLL not with
> > > >
> > > >    -Wl,--enable-auto-image-base
> > > >
> > > > but instead with a fixed address in the lower 31 bit address area,
> > > > for instance
> > > >
> > > >    -Wl,--image-base -Wl,0x7ff00000
> > > >
> > > > the problem disappears and you can successfully build the DLL.
> > >
> > > This seems to fix harfbuzz wrt gtk2; gtk3 still isn't working, but
> > > I'm not sure it's related yet.
> >
> > Dunno, but more info on that might help my collegues to fix the issue.
>
> Any more info here?

No, I haven't had time to look into it.

> > > > Alternatively, you can also workaround this issue by building harfbuzz
> > > > with the -mcmodel=large option, which doesn't suffer this problem due to
> > > > the way symbols are only indirectly addressed.
> > >
> > > With this, the link succeeded but I got SEGVs in one of the same
> > > symbols that failed to link previously.
>
> Assuming the build worked, how can one reproduce this SEGV?

e.g. running gtk-demo (from the gtk2.0-demo package).


Yaakov