Subject: RE: c++ exceptions in shared library results in crash
From: Danny Smith <[email-masked]>
To: Cygwin <[email-masked]>
Cc: [email-masked]
Date: Thu, 13 Jan 2005 22:23:02 +1300

From: "Rainer Hochreiter"
--------------------------------------------------------------------------------

> throwing an exception in the shared library results in a core dump of the
> binary executable - but only for the cross-compiled version!

cygwin and mingw gcc sources contain a local patch to allow
throwing C++ exceptions across dll/exe boundaries. These
local hacks have never been submitted to FSF GCC lists. Without
this patch, one option you have to allow exceptions across dll/exe
boudaries is to build libstdc++.a and libgcc.a as dlls. This is not done by GCC
makefiles, but can be done done manually. Libstdc++ dll  relies on auto-import
functionality, so watch your pseudo-runtime-relocs (a techno name for "blue
psuede shoes")

Someone may well ask why this local patchset has not been
submitted for review on GCC lists, and that would be a good
question.  My answer would be that they need more work before
submission..

Danny

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