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Message-ID: <51ADCCA2.9000501@trackitsystems.de>
Date: Tue, 04 Jun 2013 13:16:50 +0200
From: "Ralf Glaser, track IT" <ralf DOT glaser AT trackitsystems DOT de>
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To: cygwin AT cygwin DOT com
Subject: Re: CppUTest generated executables hangs after cygwin auto-update
References: <519E0450 DOT 60704 AT trackitsystems DOT de> <20130523122928 DOT GA23537 AT calimero DOT vinschen DOT de> <20130523150319 DOT GB7647 AT ednor DOT casa DOT cgf DOT cx> <519F2657 DOT 9040103 AT trackitsystems DOT de> <20130524090407 DOT GB5852 AT calimero DOT vinschen DOT de> <519F831B DOT 1010204 AT trackitsystems DOT de> <20130524213126 DOT GA29494 AT calimero DOT vinschen DOT de>
In-Reply-To: <20130524213126.GA29494@calimero.vinschen.de>
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2013-05-24 and 2013-06-03 snapshots are working fine.

Thanks and best regards,
Ralf


Am 24.05.2013 23:31, schrieb Corinna Vinschen:
> On May 24 17:11, Ralf Glaser, track IT wrote:
>> I attached strace log:
>> 2. failed when called from /cygdrive/c/Tools/... with 2012-11-23 DLL
>>
>> Hope that helps.
> Actually the straces didn't really help, but that's not your fault.
> I grabbed CppUTest, built it and could immediately reproduce the
> problem.  It's a Cygwin DLL build problem which has been introduced
> between 1.7.17 and 1.7.18 when we made a pretty invasive changed to the
> build system after switching from using Mingw-w64 instead of Mingw.org.
>
> What happens is that the Cygwin DLL uses the wrong entry points for the
> new and delete functions.  In theory the DLL is supposed to use its own
> internal implementations, but accidentally it uses the external new and
> delete entry points which are supposed to be used by the application.
>
> The hang is not really the problem, rather it's just a followup effect
> of that build time misbehaviour, combined with the fact that CppUTest
> defines its own new and delete functions.
>
> The actual bug is a gcc flag which has accidentally been used when
> compiling object files, rather than when linking the DLL, where it
> belonged.  I fixed that in CVS and I just generated a 2012-05-24
> snapshot, which you can download from http://cygwin.com/snapshots/
> Please give it a try.
>
> For those already running the 64 bit Cygwin, I'm also generating a
> 1.7.19-6 64 bit cygwin package right now, which should be available
> in half an hour at the latest, too.  The 64 bit Cygwin suffered the
> same problem, I just couldn't test CppUTest because it doesn't build
> cleanly on 64 bit Cygwin.
>
>
> Corinna
>

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