libstdc%2B%2B/libsupc%2B%2B/eh_throw.cc

65   __GXX_INIT_EXCEPTION_CLASS(header->unwindHeader.exception_class);
66   header->unwindHeader.exception_cleanup = __gxx_exception_cleanup;
69   _Unwind_SjLj_RaiseException (&header->unwindHeader);
71   _Unwind_RaiseException (&header->unwindHeader);
75   __cxa_begin_catch (&header->unwindHeader);
91       if (!__is_gxx_exception_class(header->unwindHeader.exception_class))
97       _Unwind_SjLj_Resume_or_Rethrow (&header->unwindHeader);
100       _Unwind_RaiseException (&header->unwindHeader);
102       _Unwind_Resume_or_Rethrow (&header->unwindHeader);
107       __cxa_begin_catch (&header->unwindHeader);