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25.\" $Id: c++filt.1 3642 2018-10-14 14:24:28Z jkoshy $
26.\"
27.Dd August 24, 2011
28.Dt C++FILT 1
29.Os
30.Sh NAME
31.Nm c++filt
32.Nd decode C++ symbols
33.Sh SYNOPSIS
34.Nm
35.Op Fl -help
36.Op Fl _ | Fl -strip-underscores
37.Op Fl n | Fl -no-strip-underscores
38.Op Fl p | Fl -no-params
39.Op Fl s Ar scheme | Fl -format Ns = Ns Ar scheme
40.Op Fl V | Fl -version
41.Op Ar encoded-names ...
42.Sh DESCRIPTION
43The
44.Nm
45utility translates encoded C++ symbol names to human-readable form.
46.Pp
47The
48.Nm
49utility has two operating modes.
50.Bl -bullet
51.It
52If arguments
53.Ar encoded-names
54are not specified, then
55.Nm
56will act as a filter, reading from standard input
57and writing to standard output.
58.It
59If arguments
60.Ar encoded-names
61are specified, then
62.Nm
63will decode each such argument in turn, writing its decoded form
64to standard output.
65.El
66.Pp
67The
68.Nm
69utility recognizes the following options:
70.Bl -tag -width indent
71.It Fl -help
72Print a help message and exit.
73.It Fl _ | Fl -strip-underscores
74Remove a leading underscore from symbol names prior to decoding them.
75.It Fl n | Fl -no-strip-underscores
76Do not remove leading underscores from names.
77.It Fl p | Fl -no-params
78This option is recognized but ignored.
79.It Fl s Ar scheme | Fl -format Ns = Ns Ar scheme
80Select the encoding scheme to use.
81Argument
82.Ar scheme
83can be one of the following:
84.Bl -tag -width "gnu-v5"
85.It Ar arm
86Use the encoding scheme specified by the C++ Annotated Reference Manual.
87.It Ar auto
88Guess the encoding scheme from the input.
89.It Ar gnu
90Use the encoding scheme used by the GNU C++ compiler.
91.It Ar gnu-v3
92Use the encoding scheme used by the GNU C++ compiler, version 3.
93.El
94.It Fl V | Fl -version
95Print a version identifier for
96.Nm
97and exit.
98.El
99.Sh EXIT STATUS
100.Ex -std
101.Sh SEE ALSO
102.Xr nm 1 ,
103.Xr strip 1 ,
104.Xr elftc_demangle 3
105.Sh AUTHORS
106The
107.Nm
108utility was written by
109.An Kai Wang Aq Mt kaiwang27@users.sourceforge.net .
110