156 lines
4.1 KiB
Groff
156 lines
4.1 KiB
Groff
.\" Copyright (c) 1980, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)nm.1 8.1 (Berkeley) 6/6/93
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.\" $FreeBSD$
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.\"
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.Dd June 6, 1993
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.Dt NM 1
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.Os
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.Sh NAME
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.Nm nm
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.Nd display name list (symbol table)
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.Sh SYNOPSIS
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.Nm
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.Op Fl agnoprtuwW
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.Op Ar
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.Sh DESCRIPTION
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The symbol table (name list) of each object in
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.Ar file Ns (s)
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is displayed.
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If a library (archive) is given,
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.Nm
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displays a list for each
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object archive member.
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If
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.Ar file
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is not present,
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.Nm
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searches for the file
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.Pa a.out
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and if present, displays the symbol
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table for
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.Pa a.out .
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl a
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Display symbol table entries inserted for use by debuggers.
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.It Fl g
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Restrict display to external (global) symbols.
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.It Fl n
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Present results in numerical order.
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.It Fl o
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Display full path or library name of object on every line.
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.It Fl p
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Do not sort at all.
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.It Fl r
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Reverse order sort.
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.It Fl t
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Output in tabular format more suitable for other programs digestive system.
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.It Fl u
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Display undefined symbols only.
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.It Fl w
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Warn about non-object archive members.
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Normally, nm will silently ignore all archive members which are not
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object files.
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.It Fl W
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Include an extra column in the output with a ``W'' indicating weak symbols.
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.El
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.Pp
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Each symbol name is preceded by its value (a blank field if the symbol
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is undefined) and one of the following letters:
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.Pp
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.Bl -tag -width Ds -compact -offset indent
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.It Fl
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debugger symbol table entries (see the
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.Fl a
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option)
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.It Li A
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absolute
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.It Li B
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bss segment symbol
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.It Li C
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common symbol
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.It Li D
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data segment symbol
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.It Li f
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file name
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.It Li I
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indirect reference symbol
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.It Li T
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text segment symbol
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.It Li U
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undefined
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.It Li W
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warn if next symbol is referenced
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.El
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.Pp
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If the symbol is local (non-external) the type letter is in lower case.
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The output is sorted alphabetically.
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.Sh KEYWORDS
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The following is a complete list of keywords and their meaning.
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The keyword is uppercase for external, lowercase for internal symbols.
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Only uppercase keywords are shown here.
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.Pp
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.Bl -tag -width sigignore -compact
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.It A
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Absolute Address
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.It B
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BSS Segment
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.It C
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Common Reference
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.It D
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Data Segment
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.It F
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Filename (external only)
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.It w
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Warning refs (internal only)
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.It I
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Alias definition
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.It T
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Text Segment
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.It U
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Undefined
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.It ?
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None of the above
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.El
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.Sh SEE ALSO
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.Xr ar 1 ,
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.Xr a.out 5 ,
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.Xr ar 5 ,
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.Xr stab 5
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.Sh HISTORY
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An
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.Nm
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command appeared in
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.At v1 .
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