From: Eliot Moss <moss@cs.umass.edu>
To: cygwin@cygwin.com
Subject: Re: Does Cygwin setup modify dlls?
Date: Fri, 22 Sep 2017 15:49:00 -0000 [thread overview]
Message-ID: <4eb6dfac-1995-212b-4d9b-940c091f34b6@cs.umass.edu> (raw)
In-Reply-To: <16302f48-6e7c-7af2-6a2e-15091794769a@gmail.com>
On 9/22/2017 10:46 AM, Marco Atzeri wrote:
> On 22/09/2017 16:11, Eliot Moss wrote:
>> On 9/22/2017 10:00 AM, Joachim Eibl wrote:
>>> Hi,
>>> In our project we like the Cygwin-Setup tool so much that we use it for our own files too.
>>> Adding our archives to our setup.ini was easy enough and almost everything worked as expected.
>>> But then a certain tool didn't work and we found that dll-files that were unpacked by the
>>> Cygwin-installer didn't match the files in the archive.
>>> The problem seems to be dll-specific. Other filetypes are not modified.
>
>>
>> Cygwin's rebasing of DLLs does modify the files (slightly).
>> Others can probably detail the exact nature of what changes,
>> and perhaps the comparison tool can be refined to ignore that
>> as a difference.
>
> the change is on ImageBase address
>
> $ objdump -x /usr/bin/cygglpk-40.dll |grep ImageBase
> ImageBase              00000003e1710000
So, if the OP compared output of objdump ignoring the ImageBase difference,
would that be able to indicate that the DLL is "the same" for his purposes
of knowing whether an installation is equivalent in terms of versions,
releases, etc.?
EM
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next prev parent reply other threads:[~2017-09-22 15:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-22 14:00 Joachim Eibl
2017-09-22 14:11 ` Eliot Moss
2017-09-22 14:46 ` Marco Atzeri
[not found] ` <trinity-4204847c-6bba-4606-b43c-8b376b96a945-1506094235587@3c-app-gmx-bs22>
2017-09-22 15:31 ` Joachim Eibl
2017-09-22 16:49 ` Marco Atzeri
2017-09-27 4:50 ` Andrey Repin
2017-09-27 10:04 ` Joachim Eibl
2017-09-22 15:49 ` Eliot Moss [this message]
2017-09-23 19:53 ` Achim Gratz
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