o be listed when source annotation is enabled.  The
     default is 10.

'-y'
'--separate-files'
     This option affects annotated source output only.  Normally,
     'gprof' prints annotated source files to standard-output.  If this
     option is specified, annotated source for a file named
     'path/FILENAME' is generated in the file 'FILENAME-ann'.  If the
     underlying file system would truncate 'FILENAME-ann' so that it
     overwrites the original 'FILENAME', 'gprof' generates annotated
     source in the file 'FILENAME.ann' instead (if the original file
     name has an extension, that extension is _replaced_ with '.ann').

'-Z[SYMSPEC]'
'--no-exec-counts[=SYMSPEC]'
     The '-Z' option causes 'gprof' not to print a tally of functions
     and the number of times each was called.  If SYMSPEC is specified,
     print tally, but exclude matching symbols.

'-r'
'--function-ordering'
     The '--function-ordering' option causes 'gprof' to print a
     suggested function ordering for the program based on profiling
     data.  This option suggests an ordering which may improve paging,
     tlb and cache behavior for the program on systems which support
     arbitrary ordering of functions in an executable.

     The exact details of how to force the linker to place functions in
     a particular order is system dependent and out of the scope of this
     manual.

'-R MAP_FILE'
'--file-ordering MAP_FILE'
     The '--file-ordering' option causes 'gprof' to print a suggested .o
     link line ordering for the program based on profiling data.  This
     option suggests an ordering which may improve paging, tlb and cache
     behavior for the program on systems which do not support arbitrary
     ordering of functions in an executable.

     Use of the '-a' argument is highly recommended with this option.

     The MAP_FILE argument is a pathname to a file which provides
     function name to object file mappings.  The format of the file is
     similar to the output of the program 'nm'.

          c-parse.o:00000000 T yyparse
          c-parse.o:00000004 C yyerrflag
          c-lang.o:00000000 T maybe_objc_method_name
          c-lang.o:00000000 T print_lang_statistics
          c-lang.o:00000000 T recognize_objc_keyword
          c-decl.o:00000000 T print_lang_identifier
          c-decl.o:00000000 T print_lang_type
          ...


     To create a MAP_FILE with GNU 'nm', type a command like 'nm
     --extern-only --defined-only -v --print-file-name program-name'.

'-T'
'--traditional'
     The '-T' option causes 'gprof' to print its output in "traditional"
     BSD style.

'-w WIDTH'
'--width=WIDTH'
     Sets width of output lines to WIDTH.  Currently only used when
     printing the function index at the bottom of the call graph.

'-x'
'--all-lines'
     This option affects annotated source output only.  By default, only
     the lines at the beginning of a basic-block are annotated.  If this
     option is specified, every line in a basic-block is annotated by
     repeating the annotation for the first line.  This behavior is
     similar to 'tcov''s '-a'.

'--demangle[=STYLE]'
'--no-demangle'
     These options control whether C++ symbol names should be demangled
     when printing output.  The default is to demangle symbols.  The
     '--no-demangle' option may be used to turn off demangling.
     Different compilers have different mangling styles.  The optional
     demangling style argument can be used to choose an appropriate
     demangling style for your compiler.