date and time created 91/01/17 18:23:46 by bostic

[unix-history] / usr / src / usr.bin / nm / nm.1

.\" Copyright (c) 1980, 1990 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" %sccs.include.redist.man%
.\"
.\"     @(#)nm.1	6.4 (Berkeley) %G%
.\"
.Dd 
.Dt NM 1
.Os BSD 4
.Sh NAME
.Nm nm
.Nd display name list (symbol table)
.Sh SYNOPSIS
.Nm nm
.Op Fl agnopruw
.Ar
.Sh DESCRIPTION
The symbol table (name list) of each object in
.Ar file(s)
is displayed.
If a library (archive) is given,
.Nm 
displays a list for each
object archive member.
If
.Ar file
is not present,
.Nm
searches for the file
.Pa a.out
and if present, displays the symbol
table for
.Pa a.out .
.Pp
.Tp Fl a
Display symbol table entries inserted for use by debuggers.
.Tp Fl g
Restrict display to external (global) symbols.
.Tp Fl n
Present results in numerical order.
.Tp Fl o
Display full path or library name of object on every line.
.Tp Fl p
Do not sort at all.
.Tp Fl r
Reverse order sort.
.Tp Fl u
Display undefined symbols only.
.Tp Fl w
Warn about non-object archive members.
Normally, nm will silently ignore all archive members which are not
object files.
.Tp
.Pp
Each symbol name is preceded by its value (a blank field if the symbol
is undefined) and one of the following letters:
.Tw Ds
.Tp Fl
debugger symbol table entries (see the
.Fl a
option).
.Tp Li A
absolute
.Tp Li B
bss segment symbol
.Tp Li C
common symbol
.Tp Li D
data segment symbol
.Tp Li f
file name
.Tp Li T
text segment symbol
.Tp Li U
undefined
.Tp
.Pp
If the symbol is local (non-external) the type letter is in lower case.
The output is sorted alphabetically.
.Sh SEE ALSO
.Xr ar 1 ,
.Xr ar 5 ,
.Xr a.out 5 ,
.Xr stab 5
.Sh HISTORY
.Nm Nm
appeared in Version 6 AT&T UNIX.