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X-HELO: calimero.vinschen.de
Date: Fri, 22 Aug 2014 14:42:57 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: ld segfaults with -flto after upgrading to gcc 4.8.3-3 (64-bit)
Message-ID: <20140822124257.GA18321@calimero.vinschen.de>
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References: <c2ded31183a3b8c46efb39206c7ec90d AT mail DOT gmail DOT com> <53F72F9B DOT 8090706 AT gmail DOT com>
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On Aug 22 19:55, JonY wrote:
> On 8/22/2014 08:20, Christoph H. Hochstaetter wrote:
> > Hi,
> >=20
> > I just upgraded gcc from 4.8.3-2 to 4.8.3-3. ld segfaults if gcc (and t=
hus
> > ld) is used with link time optimization (-flto).
>=20
> Looks like it is crashing at exit(), not sure how that happens, Corinna,
> help? :)

It's a crash in

  /usr/lib/gcc/x86_64-pc-cygwin/4.8.3/cyglto_plugin.dll

in the function

  __gcc_deregister_frame

So this points to a bug in the __gcc_deregister_frame function.  I'm not
overly familiar with it, but is it possible that not all of DJ's and
Yaakov's changes in this area are in gcc-4.8.3-3?


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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