Hi, I have a question about gprof: I compiled my program using gcc 3.2 (with-g -pg options) , and run gprof (with -A -l options) but not found the basic block counting annotation this is the output of the command: gprof -i a.out gmon.out File `gmon.out' (version 0) contains: 1 histogram record 57 call-graph records 0 basic-block count records <------- ???? Any Idea? Thanks in advance.