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Re: Why does ldd not show cyg*.dll in its output?

On 20. 5. 2016 3:20, Warren Young wrote:
> On May 19, 2016, at 5:21 PM, Hans-Bernhard BrÃker <> wrote:
>> Does not WFM:
> [snip]
>> This is with ldd.exe from cygwin-2.5.1-1, on Win10 64bit, installed into c:\cygwin64

Just bumped into this as well.

Win10 64bit (1607 build 14367) with MSYS2 64bit:

$ ldd /usr/bin/ls
        ntdll.dll => /c/WINDOWS/SYSTEM32/ntdll.dll (0x7fff19e60000)
        KERNEL32.DLL => /c/WINDOWS/System32/KERNEL32.DLL (0x7fff198a0000)
        KERNELBASE.dll => /c/WINDOWS/System32/KERNELBASE.dll (0x7fff17240000)

Win8.x 64bit with MSYS2 64bit:

$ ldd /usr/bin/ls
        ntdll.dll => /c/Windows/SYSTEM32/ntdll.dll (0x7ffda3810000)
        KERNEL32.DLL => /c/Windows/system32/KERNEL32.DLL (0x7ffda3310000)
        KERNELBASE.dll => /c/Windows/system32/KERNELBASE.dll (0x7ffda0d80000)
        msys-intl-8.dll => /usr/bin/msys-intl-8.dll (0x430b30000)
        msys-2.0.dll => /usr/bin/msys-2.0.dll (0x180040000)
        msys-iconv-2.dll => /usr/bin/msys-iconv-2.dll (0x3ff760000)

Both installations are up to date and should have identical binaries.

Looking into procmon, the only relevant difference I see is `sysmain.sdb` being checked right after `ls.exe` process creation, but that could very well be a red herring. Unfortunately, ACT seems to be broken on Win10.

I can try watching them side by side in debuggers tomorrow, maybe I'll find something.

David Macek

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