[Llvm-bgq-discuss] Linker error: undefined reference to `vtable for std::nested_exception'

[Hal Finkel]

Michael,

The relevant parts of the log are:

ignoring nonexistent directory "/bgsys/drivers/V1R2M2/ppc64/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6"

ignoring nonexistent directory "/bgsys/drivers/V1R2M2/ppc64/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6/powerpc64-bgq-linux"

Where did these files go on your system?

 -Hal

----- Original Message -----
> From: "Michael Schlottke" <m.schlottke at fz-juelich.de>
> To: llvm-bgq-discuss at lists.alcf.anl.gov, hfinkel at anl.gov
> Sent: Friday, July 18, 2014 3:23:59 AM
> Subject: Re: [Llvm-bgq-discuss] Linker error: undefined reference to `vtable for std::nested_exception'
> 
> Hi Hal,
> 
> Thanks for checking this out. I installed the last RPMs that we knew
> worked before the toolchain upgrade (r201012-20140207), but to no
> avail.
> When trying to compile the same MWE program, we get a compiler
> (preprocessor?) error instead, but again it seems to be centered
> around
> exceptions (I've attached the log). Maybe this sheds some more light
> on
> the issues we're having.
> 
> Regards,
> 
> Michael
> 
> P.S.: As before, the error occurs only when using bgclang++11 or when
> manually adding -stdlib=libc++ to bgclang++. Otherwise it compiles &
> runs just fine.
> 
> On 17.07.2014 19:21, Hal Finkel wrote:
> > Hi,
> >
> > This error almost always occurs when you pick up the old libstdc++
> > library instead of the one from the 4.7.2 toolchain. I'll look at
> > your verbose logs later.
> >
> >   -Hal
> >
> > ----- Original Message -----
> >> From: "Sandipan Mohanty" <s.mohanty at fz-juelich.de>
> >> To: llvm-bgq-discuss at lists.alcf.anl.gov
> >> Sent: Thursday, July 17, 2014 11:53:07 AM
> >> Subject: Re: [Llvm-bgq-discuss] Linker error: undefined reference
> >> to `vtable for std::nested_exception'
> >>
> >> Hi!
> >>
> >>      The linker error Michael mentioned also appears for a simple
> >>      hello world
> >> program:
> >>
> >> #include <iostream>
> >>
> >> int main()
> >> {
> >>      std::cout << "Hello, World!\n";
> >> }
> >>
> >> Compiling it with bgclang++ is fine. Compiling with bgclang++11,
> >> which also
> >> links with libc++, produces the linker error he mentioned about
> >> nested_exception. The nested_exception class members are defined
> >> inside the
> >> exception.cpp file in the libc++ source. But there are lots of
> >> macros
> >> influencing what sections get compiled. Is the libc++ in the RPM
> >> compiled with
> >> libsupc++, libcxxrt or libcxxabi as the LIBCXX_CXX_ABI ?
> >>
> >> /Sandipan
> >>
> >>
> >>
> >> On Thursday 17 Jul 2014 11:30:35 Rob Latham wrote:
> >>> See http://www.alcf.anl.gov/user-guides/bgclang-compiler#faq,
> >>> which
> >>> I
> >>> myself was just staring at last night:
> >>>
> >>> Linking code compiled with bgclang++ together with code compiled
> >>> with
> >>> bgclang++11 does not work, why?
> >>>
> >>> Code compiled using bgclang++ uses the same libstdc++ standard
> >>> template
> >>> library (STL) implementation as the system-default GNU
> >>> powerpc64-bgq-linux-g++ compiler. This provides compatibility
> >>> with
> >>> C++
> >>> libraries, including some system libraries, compiled with the GNU
> >>> toolchain. This STL implementation, however, cannot provide a
> >>> conforming
> >>> C++11 programming environment, and so bgclang++11 uses an
> >>> up-to-date STL
> >>> implementation derived from LLVM's libc++. Unfortunately, this
> >>> STL
> >>> implementation is incompatible with libstdc++, and so linking
> >>> errors
> >>> will result for functions that use STL objects as part of their
> >>> signatures (i.e. parameter or return types).
> >>>
> >>> ==rob
> >>>
> >>> On 07/17/2014 08:48 AM, Michael Schlottke wrote:
> >>>> Hi Hal,
> >>>>
> >>>> We tried to install the new version of clang on the BG/Q @ FZ
> >>>> Juelich
> >>>> from your rpms, which worked like a breeze (thanks again for
> >>>> your
> >>>> effors!). However, with the new installation we are not able to
> >>>> link
> >>>> even simple problems against libcxx, as all attempts end with
> >>>> the
> >>>> following error:
> >>>>
> >>>> /bgsys/local/clang/r209570-20140527/libc++/lib/libc++.a(exception.cpp.o):(
> >>>> .toc+0x0): undefined reference to `vtable for
> >>>> std::nested_exception'
> >>>> clang: error: linker command failed with exit code 1 (use -v to
> >>>> see
> >>>> invocation)
> >>>>
> >>>> It happens as soon as we try to compile & link a dummy program
> >>>> that has
> >>>> at least one std library include file. If we use bgclang++, the
> >>>> error
> >>>> does not occur, but it does when using either -stdlib=libc++ or
> >>>> bgclang++11.
> >>>>
> >>>> Do you have any idea what the source of the problem could be? I
> >>>> attached
> >>>> a MWE and the output of running bgclang++11 with -v.
> >>>>
> >>>> Regards,
> >>>>
> >>>> Michael
> >>>>
> >>>> P.S.: We had a driver/toolchain upgrade on JUQUEEN and thus our
> >>>> old
> >>>> clang installations are not working anymore. Maybe this could be
> >>>> related
> >>>> to the problem?
> >>>>
> >>>>
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> >>>> _______________________________________________
> >>>> llvm-bgq-discuss mailing list
> >>>> llvm-bgq-discuss at lists.alcf.anl.gov
> >>>> https://lists.alcf.anl.gov/mailman/listinfo/llvm-bgq-discuss
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> 
> 
> ------------------------------------------------------------------------------------------------
> ------------------------------------------------------------------------------------------------
> Forschungszentrum Juelich GmbH
> 52425 Juelich
> Sitz der Gesellschaft: Juelich
> Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
> Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher
> Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender),
> Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
> Prof. Dr. Sebastian M. Schmidt
> ------------------------------------------------------------------------------------------------
> ------------------------------------------------------------------------------------------------
> 
> 

-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory