Profiling question

(apologies for the previous attempt at this message) I'm attempting to profile a project spread over four or five modules, each compiled using cabal with the --enable-library-profiling and --enable-executable-profiling switches. The resulting profiles include all function calls for several of the modules, but one of the others is mysteriously never mentioned, despite definitely having been called. Is there some reason module (compiled with profiling) would be excluded from the final report? /g