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Date: Fri, 8 Feb 2002 10:02:10 +0000 (GMT)
From: Andreas Damm <andreas-sourceforge AT radab DOT org>
X-X-Sender:  <dammy AT gate DOT rad-ab DOT u-net DOT com>
To: Robert Collins <robert DOT collins AT itdomain DOT com DOT au>
cc: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: Re: libgcc exception handling not thread safe
In-Reply-To: <038a01c1b085$e8ac4ef0$0200a8c0@lifelesswks>
Message-ID: <Pine.LNX.4.33.0202080959090.1281-100000@gate.rad-ab.u-net.com>
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Ok, putting libgcc.a from the Mingw distribution into /lib/mingw seems to
do the trick (another library to salvage from that distribution is
libstdc++.a which also goes into /lib/mingw).


On Fri, 8 Feb 2002, Robert Collins wrote:

> Date: Fri, 8 Feb 2002 20:49:31 +1100
> From: Robert Collins <robert DOT collins AT itdomain DOT com DOT au>
> To: Andreas Damm <andreas-sourceforge AT radab DOT org>,
>      "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
> Subject: Re: libgcc exception handling not thread safe
>
>
> ===
> ----- Original Message -----
> From: "Andreas Damm" <andreas-sourceforge AT radab DOT org>
> To: <cygwin AT cygwin DOT com>
> Sent: Friday, February 08, 2002 8:47 PM
> Subject: libgcc exception handling not thread safe
>
>
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> >
> > libgcc.a in the gcc package does not seem to be thread safe with
> regards
> > to c++ exception handling. Doing a nm libgcc.a does not show any
> > dependencies on Windows synchronisation and thread functions (e.g.
> > InterlockedIncrement and TlsAlloc).
> >
> > When compiling a c++ program with -mno-cygwin which runs multiple
> threads
> > it will eventually crash.
> >
> > Should this be fixed?
>
> No. Libgcc.a is a cygwin application, and is not meant to be linked in
> with -mno-cygwin compiles. A mingw libgcc.a is needed for that scenario.
>
> Rob
>
>
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