[Bug c++/34684] Cross DLL Exceptions

[Bug c++/34684] Cross DLL Exceptions

[ktietz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34684

Kai Tietz <ktietz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |ktietz at gcc dot gnu.org
         Resolution|                            |FIXED

--- Comment #4 from Kai Tietz <ktietz at gcc dot gnu.org> 2010-09-24 21:08:50 UTC ---
For gcc version 4.5.x and newer mingw/cygwin targets are supporting shared
version of libgcc and libstdc++ OOTB. By using them (see option
-shared-libgcc/libstdc++) cross-DLL throw/catch is working.
The static variant is still not working. This could be solved by using SEH
unwinding, which isn't a feature of gcc for 32-bit x86 at the moment.

So I close this bug, as there is now a working way to handle this problem

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[Bug c++/34684] Cross DLL Exceptions

[brian at dessent dot net]

------- Comment #3 from brian at dessent dot net  2008-01-09 03:18 -------
FSF gcc does not currently support exceptions across shared libraries on Cygwin
or MinGW.  This is because a shared libgcc is required, and libgcc only builds
static on those platforms.

For the 3.4 gcc releases that MinGW and Cygwin ship, there is a local patch
that lets exceptions across shared libraries work with static libgcc.  This
patch is quite a hack and was offered but never accepted upstream.  It cannot
be used with 4.x because the internals have changed so much.

The real solution is to build libgcc shared, which is what the MinGW gcc 4.2
release does with a number of MinGW-local patches.  They have not made their
way into FSF gcc, so until somebody works on this FSF gcc will continue to be
broken.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34684