1*3d8817e4Smiod- check whether old file format is properly read when input comes from 2*3d8817e4Smiod stdin 3*3d8817e4Smiod 4*3d8817e4Smiod- check whether underscores are properly dealt with (both, on systems 5*3d8817e4Smiod that prepend them to each C name and on systems that don't) 6*3d8817e4Smiod 7*3d8817e4Smiod- ensure gprof fails gracefully when no debugging info available 8