1*2a6b7db3Sskrll- check whether old file format is properly read when input comes from 2*2a6b7db3Sskrll stdin 3*2a6b7db3Sskrll 4*2a6b7db3Sskrll- check whether underscores are properly dealt with (both, on systems 5*2a6b7db3Sskrll that prepend them to each C name and on systems that don't) 6*2a6b7db3Sskrll 7*2a6b7db3Sskrll- ensure gprof fails gracefully when no debugging info available 8