Well, I don't think there's anything special that Cygwin does to load
executables, because these are essentially Windows processes, so they are
loaded by Windows, first and foremost.
But it gets even weirder. Below are two _consecutive!_ runs of ldd on the very
same executable. Why the output differs so drastically (including the unknown
dlls all of a sudden)?
1.
ntdll.dll => /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll (0x7ffc339d0000)
KERNEL32.DLL => /cygdrive/c/WINDOWS/System32/KERNEL32.DLL
(0x7ffc31a00000)
KERNELBASE.dll => /cygdrive/c/WINDOWS/System32/KERNELBASE.dll
(0x7ffc30090000)
cygbz2-1.dll => /usr/bin/cygbz2-1.dll (0x3f6a40000)
cygcom_err-2.dll => /usr/bin/cygcom_err-2.dll (0x3ef750000)
cyggssapi_krb5-2.dll => /usr/bin/cyggssapi_krb5-2.dll (0x3eceb0000)
cygiconv-2.dll => /usr/bin/cygiconv-2.dll (0x3ec980000)
cygpcre-1.dll => /usr/bin/cygpcre-1.dll (0x3eb1a0000)
cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3ee3a0000)
cygstdc++-6.dll => /usr/bin/cygstdc++-6.dll (0x3ea280000)
cygz.dll => /cygdrive/u/2.4.0/release/Cygwin-64/bin/cygz.dll
(0x3aba30000)
cygk5crypto-3.dll => /usr/bin/cygk5crypto-3.dll (0x3ec300000)
cygwin1.dll => /cygdrive/u/2.4.0/release/Cygwin-64/bin/cygwin1.dll
(0x180040000)
??? => ??? (0xe80000)
??? => ??? (0x1440000)
??? => ??? (0xe80000)
cygkrb5-3.dll => /usr/bin/cygkrb5-3.dll (0x3ec170000)
cygkrb5support-0.dll => /usr/bin/cygkrb5support-0.dll (0x3ec150000)
cygintl-8.dll => /usr/bin/cygintl-8.dll (0x3ec8d0000)
2.
ntdll.dll => /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll (0x7ffc339d0000)
KERNEL32.DLL => /cygdrive/c/WINDOWS/System32/KERNEL32.DLL
(0x7ffc31a00000)
KERNELBASE.dll => /cygdrive/c/WINDOWS/System32/KERNELBASE.dll
(0x7ffc30090000)
cygbz2-1.dll => /usr/bin/cygbz2-1.dll (0x3f6a40000)
cygcom_err-2.dll => /usr/bin/cygcom_err-2.dll (0x3ef750000)
cyggssapi_krb5-2.dll => /usr/bin/cyggssapi_krb5-2.dll (0x3eceb0000)
cygiconv-2.dll => /usr/bin/cygiconv-2.dll (0x3ec980000)
cygpcre-1.dll => /usr/bin/cygpcre-1.dll (0x3eb1a0000)
cygwin1.dll => /cygdrive/u/2.4.0/release/Cygwin-64/bin/cygwin1.dll
(0x180040000)
cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3ee3a0000)
cygstdc++-6.dll => /usr/bin/cygstdc++-6.dll (0x3ea280000)
cygk5crypto-3.dll => /usr/bin/cygk5crypto-3.dll (0x3ec300000)
cygkrb5-3.dll => /usr/bin/cygkrb5-3.dll (0x3ec170000)
cygz.dll => /cygdrive/u/2.4.0/release/Cygwin-64/bin/cygz.dll
(0x3aba30000)
cygkrb5support-0.dll => /usr/bin/cygkrb5support-0.dll (0x3ec150000)
cygintl-8.dll => /usr/bin/cygintl-8.dll (0x3ec8d0000)
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