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Date: Sat, 21 Nov 2009 13:56:37 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: [1.7] .exe append weirdness
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On Nov 21 10:46, JonY wrote:
> Hi,
> 
> I'm using a win64 target cross compiler under Cygwin. I noticed all
> the stripped dlls will eventually end with ".exe".
> 
> I am on 32bit Windows XP sp3, Cygwin 1.7.0-64. (Upgrading to -65
> causes "system shared memory version mismatch detected" for all
> Cygwin apps, its another issue altogether.
> 
> This does not happen to native win32 dlls produced with -m32 or with
> Cygwin dlls.

This should be basically fixed in CVS now.

The problem is that the Windows function GetBinaryType returns different
results for 64-bit DLLs, dependent on the OS.  On 64-bit OSes it returns
with an error ERROR_BAD_EXE_FORMAT.  That's how it's supposed to be for
all DLLs per MSDN(*).  However, on 32-bit OSes the function returns
unexpectedly successful with the file type set to SCS_64BIT_BINARY.


Thanks for the report,
Corinna

(*) http://msdn.microsoft.com/en-us/library/aa364819%28VS.85%29.aspx

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

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