Frank Lichtenheld <[EMAIL PROTECTED]> writes:
> This isn't quite true I think. The current dpkg-shlibdeps code works
> like this:
> 1) use "ldd <binary>" to find the paths to the linked libraries
> 2) use "objdump -p <binary>" to actually check which of this libraries
> are listed as NEEDED (Are there cases where ldd lists
> libraries that are not NEEDED?)
Yes. ldd will list all shared libraries pulled in by a binary, regardless
of whether they're NEEDED by the binary itself or just NEEDED by one of
the shared libraries it uses. For example:
windlord:~> ldd /usr/bin/remctl
linux-gate.so.1 => (0xffffe000)
libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0xb7f8e000)
libc.so.6 => /lib/tls/libc.so.6 (0xb7e57000)
libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0xb7ddf000)
libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0xb7dbb000)
libcom_err.so.2 => /lib/libcom_err.so.2 (0xb7db8000)
libkrb5support.so.0 => /usr/lib/libkrb5support.so.0 (0xb7db3000)
libresolv.so.2 => /lib/tls/libresolv.so.2 (0xb7da0000)
/lib/ld-linux.so.2 (0xb7fb3000)
windlord:~> objdump -p /usr/bin/remctl | grep NEEDED
NEEDED libgssapi_krb5.so.2
NEEDED libc.so.6
windlord:~> objdump -p /usr/lib/libgssapi_krb5.so.2 | grep NEEDED
NEEDED libkrb5.so.3
NEEDED libk5crypto.so.3
NEEDED libcom_err.so.2
NEEDED libkrb5support.so.0
NEEDED libresolv.so.2
NEEDED libc.so.6
--
Russ Allbery ([EMAIL PROTECTED]) <http://www.eyrie.org/~eagle/>
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