1*2159047fSniklas- check whether old file format is properly read when input comes from 2*2159047fSniklas stdin 3*2159047fSniklas 4*2159047fSniklas- check whether underscores are properly dealt with (both, on systems 5*2159047fSniklas that prepend them to each C name and on systems that don't) 6*2159047fSniklas 7*2159047fSniklas- ensure gprof fails gracefully when no debugging info available 8