http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55571
--- Comment #6 from Richard Henderson <rth at gcc dot gnu.org> 2012-12-03 16:48:59 UTC --- Created attachment 28861 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28861 proposed patch 4.6 only IMO there are multiple problems being exposed here. Some of them probably require more build surgery than others. In the case of gcc 4.6 (and probably 4.7) I'd like to fix nothing other than the minimal. This patch links libgcc_s.so.1 with libgcc.a. That brings in the hidden __sync_synchronize symbol (as well as all of the others) into the shared library so that it doesn't require external resolution. I've only "tested" this via cross-compile so far, wherein I see what I expected from the dynamic symbol table.
