mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-23 01:03:28 +08:00
115 lines
3.1 KiB
Groff
115 lines
3.1 KiB
Groff
.\" Copyright (c) 1991 Free Software Foundation
|
|
.\" See section COPYING for conditions for redistribution
|
|
.TH @PROGRAM@ 1 "June 1993" "cygnus support" "GNU Development Tools"
|
|
.de BP
|
|
.sp
|
|
.ti \-.2i
|
|
\(**
|
|
..
|
|
|
|
.SH NAME
|
|
@PROGRAM@ \- demangle C++ symbols
|
|
|
|
.SH SYNOPSIS
|
|
.hy 0
|
|
.na
|
|
.TP
|
|
.B @PROGRAM@
|
|
.RB "[\|" \-_ | \-\-strip-underscores "\|]"
|
|
.RB "[\|" "\-s {gnu,lucid,arm} " | " \-\-format={gnu,lucid,arm}" "\|]"
|
|
.RB "[\|" \-\-help "\|]"
|
|
.RB "[\|" \-\-version "\|]"
|
|
.RB "[\|" symbol "...\|]"
|
|
.SH DESCRIPTION
|
|
The C++ language provides function overloading, which means that you can
|
|
write many functions with the same name (providing each takes parameters
|
|
of different types). All C++ function names are encoded into a
|
|
low-level assembly label (this process is known as
|
|
.I mangling\c
|
|
). The
|
|
.B @PROGRAM@
|
|
program does the inverse mapping: it decodes (\fIdemangles\fR)
|
|
low-level names into user-level names so that the linker can keep
|
|
these overloaded functions from clashing.
|
|
.PP
|
|
Every alphanumeric word (consisting of letters, digits, underscores,
|
|
dollars, or periods) seen in the input is a potential label. If the
|
|
label decodes into a C++ name, the C++ name replaces the low-level
|
|
name in the output.
|
|
.PP
|
|
You can use
|
|
.B @PROGRAM@
|
|
to decipher individual symbols by specifying these symbols on the
|
|
command line.
|
|
.PP
|
|
If no
|
|
.B symbol
|
|
arguments are given,
|
|
.B @PROGRAM@
|
|
reads symbol names from the standard input and writes the demangled
|
|
names to the standard output. All results are printed on the standard
|
|
output.
|
|
.SH OPTIONS
|
|
.TP
|
|
.B \-_
|
|
.TP
|
|
.B \-\-strip\-underscores
|
|
On some systems, both the C and C++ compilers put an
|
|
underscore in front of every name. For example, the C name
|
|
.B foo
|
|
gets the low-level name
|
|
.BR _foo .
|
|
This option removes the leading underscore.
|
|
|
|
.TP
|
|
.B "\-s {gnu,lucid,arm}"
|
|
.TP
|
|
.B \-\-format={gnu,lucid,arm}
|
|
GNU
|
|
.B nm
|
|
can decode three different methods of mangling, used by different C++
|
|
compilers. This option selects which method it uses: the one used by
|
|
the GNU compiler, the one used by the Lucid compiler, or the one
|
|
specified by the C++ Annotated Reference Manual. The default is the
|
|
GNU style.
|
|
|
|
.TP
|
|
.B \-\-help
|
|
Print a summary of the options to
|
|
.B @PROGRAM@
|
|
and exit.
|
|
|
|
.TP
|
|
.B \-\-version
|
|
Print the version number of
|
|
.B @PROGRAM@
|
|
and exit.
|
|
|
|
.SH "SEE ALSO"
|
|
.RB "`\|" binutils "\|'"
|
|
entry in
|
|
.B
|
|
info\c
|
|
\&;
|
|
.I
|
|
The GNU Binary Utilities\c
|
|
\&, Roland H. Pesch (June 1993).
|
|
|
|
.SH COPYING
|
|
Copyright (c) 1993 Free Software Foundation, Inc.
|
|
.PP
|
|
Permission is granted to make and distribute verbatim copies of
|
|
this manual provided the copyright notice and this permission notice
|
|
are preserved on all copies.
|
|
.PP
|
|
Permission is granted to copy and distribute modified versions of this
|
|
manual under the conditions for verbatim copying, provided that the
|
|
entire resulting derived work is distributed under the terms of a
|
|
permission notice identical to this one.
|
|
.PP
|
|
Permission is granted to copy and distribute translations of this
|
|
manual into another language, under the above conditions for modified
|
|
versions, except that this permission notice may be included in
|
|
translations approved by the Free Software Foundation instead of in
|
|
the original English.
|