Detecting loading of libraries

Hi, I'm wondering if there's a good way of detecting the loading of libraries by processes (I am specifically NOT talking about the uselib syscall). strace shows me apps do open(...)/mmap/mprotect I'm currently intercepting mmap calls, however no additional context records are given to provide the name of the library, and the file descriptor is the 5th parameter, so I can't get that either to match it to an open(...) Is there a way to do this that I'm missing ? Thanks, Hassan