however, that the format of the data is not what @code{tcov} expects.
Eventually GNU @code{gprof} should be extended to process this data.
+@item -Q
+Makes the compiler print out each function name as it is compiled, and
+print some statistics about each pass when it finishes.
+
@item -ax
Generate extra code to profile basic blocks. Your executable will
produce output that is a superset of that produced when @samp{-a} is