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Date: Tue, 30 Jul 2013 10:24:36 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: cyglsa-config not working properly in cygwin 1.7.22
Message-ID: <20130730082436.GJ4166@calimero.vinschen.de>
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References: <2B53C7C1-54F1-4477-91B4-F23CD4A55F0F AT basissw DOT com> <20130729165818 DOT GE4166 AT calimero DOT vinschen DOT de> <6A02E3C2-3208-4526-A066-C76AF86AA372 AT basissw DOT com> <20130729190814 DOT GF4166 AT calimero DOT vinschen DOT de> <20130729192658 DOT GH4166 AT calimero DOT vinschen DOT de> <91AB00E9-37A9-471B-85B9-E2C5AFE79E27 AT basissw DOT com> <20130729202238 DOT GA23199 AT calimero DOT vinschen DOT de> <F9D23BCB-CC15-4B5A-8D52-5E393BE5EC81 AT basissw DOT com>
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On Jul 29 15:45, J. P. Abelanet wrote:
> 
> On Jul 29, 2013, at 3:22 PM, Corinna Vinschen wrote:
> 
> > On Jul 29 14:53, J. P. Abelanet wrote:
> >> 
> >> On Jul 29, 2013, at 2:26 PM, Corinna Vinschen wrote:
> >> 
> >>>> 
> >>>> I think I found the problem.  The older compiler didn't reorder
> >>>> functions for optimization purposes, but the new one does.  The entry
> >>>> point for the cyglsa DLL was not explicitely mentioned, but it was based
> >>>> on the fact that it is the first function in the source code.
> >>>> 
> >>>> However, the new compiler reorders function by default with -O2
> >>>> optimization.  So the entry point was not at the start of the executable
> >>>> anymore and the LSA failed to load the cyglsa DLL.  I changed the
> >>>> Makefile to specify the entry point of the DLL explicitely to make sure
> >>>> the right function is called at load time.
> >>>> 
> >>>> This seems to work again in my testing on 32 and 64 bit, but more
> >>>> testing never hurts.  So I'd like to ask you to check the today's
> >>>> developer snapshot from http://cygwin.com/snapshots/ and copy the cyglsa
> >>>> DLL from the snapshot into /bin/cyglsa.  Given that the DLL there isn't
> >>>> loaded, you should be able to overwrite it, like this:
> >>>> 
> >>>> On a 32 bit OS:
> >>>> 
> >>>> cp /bin/cyglsa.dll /bin/cyglsa/
> >>>> 
> >>>> On a 64 bit OS:
> >>>> 
> >>>> cp /bin/cyglsa64.dll /bin/cyglsa/
> >>>> 
> >>>> Kep in mind that the x86 snapshots contains both DLLs, while the x86_64
> >>>> snapshot only contains the 64 bit DLL.
> >>>> 
> >>>>> Thanks for a great product overall -
> >>>> 
> >>>> Thanks to you for the report!  The today's 32 and 64 bit snapshots
> >>>> should be uploaded in an hour at the latest.
> >>> 
> >>> Snapshots are up.
> >>> 
> >> Thanks again for responding so quickly.  My quick test did not work, but perhaps I misunderstood.
> >> I did the following:
> >> - Set "passwd -R" to blank value
> >> - Download, but not install, http://cygwin.com/snapshots/x86/cygwin-inst-20130729.tar.bz2
> >> - Extract /bin/cyglsa*.dll from the snapshot, overwriting the existing files
> >> - cp /bin/cyglsa.dll /bin/cyglsa/, since this is a 32-bit OS
> >> - Do not reboot, or run cyglsa-config, or anything else
> > 
> > You *must* reboot.  LSA only picks up the authentication package DLLs 
> > at boot time.  Sorry for missing that in my instruction.
> That fixed it!!!  Thanks again for the quick response.
> 
> I'll upgrade to 1.7.23 when it becomes available.

Thanks for testing and your feedback.


Corinna

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

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