GNU gprof (GNU Binutils for Ubuntu) 2.26.1 Based on BSD gprof, copyright 1983 Regents of the University of California. This program is free software. This program has absolutely no warranty.

Usage: x86_64-linux-gnu-gprof [-[abcDhilLsTvwxyz]] [-[ACeEfFJnNOpPqSQZ][name]] [-I dirs] [-d[num]] [-k from/to] [-m min-count] [-t table-length] [--[no-]annotated-source[=name]] [--[no-]exec-counts[=name]] [--[no-]flat-profile[=name]] [--[no-]graph[=name]] [--[no-]time=name] [--all-lines] [--brief] [--debug[=level]] [--function-ordering] [--file-ordering] [--inline-file-names] [--directory-path=dirs] [--display-unused-functions] [--file-format=name] [--file-info] [--help] [--line] [--min-count=n] [--no-static] [--print-path] [--separate-files] [--static-call-graph] [--sum] [--table-length=len] [--traditional] [--version] [--width=n] [--ignore-non-functions] [--demangle[=STYLE]] [--no-demangle] [--external-symbol-table=name] [@FILE] [image-file] [profile-file...] Report bugs to <http://www.sourceware.org/bugzilla/>