On Mon, Nov 23, 2015 at 12:59 AM, Schlottke-Lakemper, Michael via cfe-users <cfe-users@lists.llvm.org> wrote: > Hi folks, > > I'm trying to set up our cluster tool chain to support clang’s memory > sanitizer for our multiphysics simulation program, but I can’t get it to > work :-/ > > I started with a regularly compiled clang installation (with libcxx, > libcxxabi, and libomp built in-tree). With this, I compiled all necessary > third-party libraries with “-O1 -fsanitize=memory” (OpenMPI, FFTW, Parallel > netCDF). Then, I compiled the libcxx/libcxxabi libraries with msan-support > by checking out the llvm source and the libcxx/libcxxabi repos into the > llvm/projects/ directory. I configured them with LLVM_USE_SANITIZER=Memory > and put the msan-instrumented libraries in the LD_LIBRARY_PATH. > > Finally, I tried to compile our tool, ZFS, with the memory sanitizer enabled > and linked against the msan-compiled third-party libraries as well as the > msan-instrumented libcxx/libcxxabi libraries (by putting them in the > LD_LIBRARY_PATH). However, here I failed: either at configure time or at > compile time (after doing some LD_LIBRARY_PATH trickery), clang exits with > the following error: > > /pds/opt/llvm-20151121-r253770/bin/clang++: symbol lookup error: > /pds/opt/libcxx-msan-20151121-r253770/lib/libc++abi.so.1: undefined symbol: > __msan_va_arg_overflow_size_tls > > Any suggestions as to what I am doing wrong? Should I put the > msan-instrumented libcxx in the LD_LIBRARY_PATH after compilation only?
Yes, probably. In this case your compiler, which is not built with MSan, picked up an instrumented libc++abi. Sometimes it is convenient to set RPATH on all msan libraries/executables and avoid LD_LIBRARY_PATH. > > Thanks a lot in advance > > Michael > > > -- > Michael Schlottke-Lakemper > > Chair of Fluid Mechanics and Institute of Aerodynamics > RWTH Aachen University > Wüllnerstraße 5a > 52062 Aachen > Germany > > Phone: +49 (241) 80 95188 > Fax: +49 (241) 80 92257 > Mail: m.schlottke-lakem...@aia.rwth-aachen.de > Web: http://www.aia.rwth-aachen.de > > > _______________________________________________ > cfe-users mailing list > cfe-users@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users > _______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
