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Date:	Tue, 25 Sep 2001 06:18:05 +1000 (EST)
From:	=?iso-8859-1?q?Danny=20Smith?= <danny_r_smith_2001 AT yahoo DOT co DOT nz>
Subject:	Re: DLLs and exceptions
To:	al DOT slater AT scluk DOT com, cygwin AT cygwin DOT com
In-Reply-To:	<000101c144f3$c2060280$458c0ca4@pavilion>
MIME-Version:	1.0

 --- Al Slater <al DOT slater AT scluk DOT com> wrote: > Hi,
> 
> I am working on a project which requires multiple dlls as follows.
> 
> cbftest.exe calls libcbfo.dll,  which calls libupdb.dll
> 
> The problem is when an exception is thrown in libupdb.dll, I get the
> message
> "abnormal program termination" and the program stops.
> 
> If I build the program without using dlls (ie build the program
> against the
> object files instead of the dlls) the exception gets thrown and
> caught
> properly.
> 
> I am using the -mno-cygwin option.
> 
> Any ideas where the problem may lie?
> 

This is a known problem when throwing exceptions in one executable and
catching them in another.  The exception code must live in one and only
one place. Check the mingw  and the pthread-win32 archives for ways to
do this (under mingw or -mno-cygwin) by putting the generic and C++ eh
code from mingw libgcc into a dll.

Danny

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