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4.3 Miscellaneous Options

-d[num]
--debug[=num]

The ‘-d num’ option specifies debugging options. If num is not specified, enable all debugging. See Debugging gprof.

-h
--help

The ‘-h’ option prints command line usage.

-Oname
--file-format=name

Selects the format of the profile data files. Recognized formats are ‘auto’ (the default), ‘bsd’, ‘4.4bsd’, ‘magic’, and ‘prof’ (not yet supported).

-s
--sum

The ‘-s’ option causes gprof to summarize the information in the profile data files it read in, and write out a profile data file called gmon.sum, which contains all the information from the profile data files that gprof read in. The file gmon.sum may be one of the specified input files; the effect of this is to merge the data in the other input files into gmon.sum.

Eventually you can run gprof again without ‘-s’ to analyze the cumulative data in the file gmon.sum.

-v
--version

The ‘-v’ flag causes gprof to print the current version number, and then exit.