[vtk-developers] VTK + Python + AMD64 = broken

[David Cole]

Most VTK-5-2 merges are being held until we have some dashboards set up
against the branch, but it should be relatively soon...


On Fri, May 2, 2008 at 12:19 PM, Mathieu Malaterre <
mathieu.malaterre at gmail.com> wrote:

> done:
>
> $ cvs ci -m"BUG: RTLD_GLOBAL is still required on AMD64 platform,
> since dl module is missing, use an API equivalent one intead: DLFCN"
> __init__.py
> /cvsroot/VTK/VTK/Wrapping/Python/vtk/__init__.py,v  <--  __init__.py
> new revision: 1.14; previous revision: 1.13
>
> this bug is really nasty, I wish I knew a way to reproduce it easily
> instead of segfaulting in some random part of the C++ code...
>
> Thanks
> -M
>
> On Fri, May 2, 2008 at 6:13 PM, David Cole <david.cole at kitware.com> wrote:
> > If you commit the changes to CVS HEAD, (and nobody objects to the
> > changes...) I will merge them to the VTK-5-2 branch...
> >
> >
> >
> >
> > On Fri, May 2, 2008 at 12:08 PM, Mathieu Malaterre
> > <mathieu.malaterre at gmail.com> wrote:
> >
> > >
> > >
> > >
> > > I have just spent yet-another hour trying to figure out why the exact
> > > same code would seg fault when called from the python-wrapped layer
> > > and not the C++ layer. This is yet again the famous dlopen +
> > > RTLD_GLOBAL that still need to be loaded (well at least on my debian
> > > linux system).
> > >
> > > For some obscure reason the 'dl' python module has been removed on
> > > AMD64, but the API can be found in the equivalent 'DLFCN' module.
> > > Therefore I use the following approach in python: try first to load dl
> > > then DLFCN:
> > >
> > >
> >
> http://gdcm.svn.sourceforge.net/viewvc/gdcm/trunk/Utilities/VTK/vtkgdcm.py?view=markup
> > >
> > > ...
> > >
> > >  try:
> > >    import dl
> > >  except ImportError:
> > >    # are we on AMD64 ?
> > >    try:
> > >      import DLFCN as dl
> > >    except ImportError:
> > >      dl = None
> > > ...
> > >
> > > Could this be fixed in VTK 5.2 ?
> > >
> > > Thanks,
> > > --
> > > Mathieu
> > > _______________________________________________
> > > vtk-developers mailing list
> > > vtk-developers at vtk.org
> > > http://www.vtk.org/mailman/listinfo/vtk-developers
> > >
> >
> >
>
>
>
> --
> Mathieu
>
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