xref: /freebsd/contrib/elftoolchain/cxxfilt/c++filt.1 (revision 9f44a47fd07924afc035991af15d84e6585dea4f)
1.\" Copyright (c) 2009-2011 Joseph Koshy <jkoshy@users.sourceforge.net>
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\"    notice, this list of conditions and the following disclaimer
9.\"    in this position and unchanged.
10.\" 2. Redistributions in binary form must reproduce the above copyright
11.\"    notice, this list of conditions and the following disclaimer in the
12.\"    documentation and/or other materials provided with the distribution.
13.\"
14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
15.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24.\"
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