_Unwind_RaiseException incompatibility?

[Stephan Bergmann <stephan dot bergmann at sun dot com>]

Hi all.

I have a GCC-3.2--built executable that loads shared libraries and 
executes code in them.  I now experience problems when some of those 
shared libraries are compiled with GCC 3.3 instead of 3.2; C++ exception 
handling within those libraries leads to std::terminate and abort.  The 
stdc++ and gcc_s libraries used by the process are those from GCC 3.2. 
I tracked down one cause for an abort as follows:  A GCC-3.3--built 
shared library wants to throw a C++ exception, calls __cxa_throw (stdc++ 
library), which in turn calls _Unwind_RaiseException (gcc_s library). 
For some reason, _Unwind_RaiseException (erroneously) returns normally, 
so that __cxa_throw continues with a call to std::terminate.  If I only 
replace the used gcc_s library (from GCC 3.2) with the one from GCC 3.3, 
everything appears to work fine (I tested various scenarios where a C++ 
exception is thrown in one library and caught in the same/another/the 
executable).

My question now:  Is this a known issue?  Does anybody know whether my 
problem (GCC-3.2--built executable executing shared libraries built with 
both GCC 3.2 and 3.3) is solved reliably if I always use the gcc_s 
library from GCC 3.3---that is, will _all_ scenarios with 
inter-/intra-library exceptions work?

Thanks,
Stephan