libnl-3-200-dbg 3.2.21-1ubuntu1 (amd64 binary) in ubuntu trusty

 This is a library for applications dealing with netlink sockets.
 The library provides an interface for raw netlink messaging and various
 netlink family specific interfaces.
 .
 This package contains unstripped shared libraries. It is provided primarily
 to provide a backtrace with names in a debugger, this makes it somewhat easier
 to interpret core dumps. The libraries are installed in /usr/lib/debug and
 are automatically used by gdb.