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Subject: Re: Why does ldd not show cyg*.dll in its output?
To: cygwin AT cygwin DOT com
References: <3AD694B4-17D4-4963-88FD-435AD4DD36D5 AT etr-usa DOT com>
From: Yaakov Selkowitz <yselkowitz AT cygwin DOT com>
Message-ID: <4b37d689-285d-7dd4-3e3d-d40b4ee2f81f@cygwin.com>
Date: Mon, 16 May 2016 12:50:34 -0500
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On 2016-05-16 10:42, Warren Young wrote:
> $ ldd `which ls`
>         ntdll.dll => /c/WINDOWS/SYSTEM32/ntdll.dll (0x7ffd16fb0000)
>         KERNEL32.DLL => /c/WINDOWS/system32/KERNEL32.DLL (0x7ffd16b80000)
>         KERNELBASE.dll => /c/WINDOWS/system32/KERNELBASE.dll (0x7ffd13f50000)

WFM:

$ /bin/ldd /bin/ls
         ntdll.dll => /cygdrive/c/Windows/SYSTEM32/ntdll.dll (0x77c90000)
         kernel32.dll => /cygdrive/c/Windows/system32/kernel32.dll 
(0x77a70000)
         KERNELBASE.dll => /cygdrive/c/Windows/system32/KERNELBASE.dll 
(0x7fefdb10000)
         cygwin1.dll => /usr/bin/cygwin1.dll (0x180040000)
         cygintl-8.dll => /usr/bin/cygintl-8.dll (0x3d4e00000)
         cygiconv-2.dll => /usr/bin/cygiconv-2.dll (0x3d8b50000)

> Expected output:
>
> According to Microsoft’s Dependency Walker tool, the output should also list
> cygwin1.dll and cygintl-8.dll, at minimum.  Since it seems happy to chase
> dependencies from kernel32.dll to the other two, which are not explicit
> dependencies of ls.exe, it should also list cygiconv-2.dll, via cygintl.

See above.

> Bonus points if the output changes to a tree view, so the indirect dependencies are clear.

ldd is meant to be compatible with the Linux tool.  As Andrey mentioned, 
use cygcheck instead if you want that layout.

-- 
Yaakov

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