mark_direct_calls - mark procedures used only in direct calls
mark_direct_calls infile outfile { infile outfile }*
The mark_direct_calls program adds k_direct_calls_only annotations for all proc_syms for which it can be guaranteed that all calls to the procedure will be through call instructions in the current fileset that directly use the address of the proc_sym, never indirectly through a pointer to a procedure. This allows other programs to know that they can be guaranteed of finding all call sites for the procedure.
This program was written by Chris Wilson.