nm
NAME
nm - list symbols from object files.
SYNOPSIS
nm [-a|--debug-syms] [-g|--extern-only] [-B]
[-C|--demangle] [-D|--dynamic] [-s|--print-armap]
[-o|--print-file-name] [-n|--numeric-sort]
[-p|--no-sort] [-r|--reverse-sort] [--size-sort]
[-u|--undefined-only] [--help] [--version] [-t
radix|--radix=radix] [-P|--portability] [-f
format|--format=format] [--target=bfdname] [objfile...]
DESCRIPTION
GNU nm lists the symbols from object files objfile. If no
object files are given as arguments, nm assumes `a.out'.
OPTIONS
The long and short forms of options, shown here as alterna-
tives, are equivalent.
-A
-o
--print-file-name
Precede each symbol by the name of the input file where
it was found, rather than identifying the input file
once only before all of its symbols.
-a
--debug-syms
Display debugger-only symbols; normally these are not
listed.
-B The same as --format=bsd (for compatibility with the
MIPS nm).
-C
--demangle
Decode (demangle) low-level symbol names into user-
level names. Besides removing any initial underscore
prepended by the system, this makes C++ function names
readable.
-D
--dynamic
Display the dynamic symbols rather than the normal sym-
bols. This is only meaningful for dynamic objects,
such as certain types of shared libraries.
-f format
Use the output format format, which can be ``bsd'',
``sysv'', or ``posix''. The default is `bsd''. Only
the first character of format is significant; it can be
either upper or lower case.
-g
--extern-only
Display only external symbols.
-n
-v
--numeric-sort
Sort symbols numerically by their addresses, not alpha-
betically by their names.
-p
--no-sort
Don't bother to sort the symbols in any order; just
print them in the order encountered.
-P
--portability
Use the POSIX.2 standard output format instead of the
default format. Equivalent to ``-f posix''.
-s
--print-armap
When listing symbols from archive members, include the
index: a mapping (stored in the archive by ar or ran-
lib) of what modules contain definitions for what
names.
-r
--reverse-sort
Reverse the sense of the sort (whether numeric or al-
phabetic); let the last come first.
--size-sort
Sort symbols by size. The size is computed as the
difference between the value of the symbol and the
value of the symbol with the next higher value. The
size of the symbol is printed, rather than the value.
-t radix
--radix=radix
Use radix as the radix for printing the symbol values.
It must be ``d'' for decimal, ``o'' for octal, or ``x''
for hexadecimal.
--target=bfdname
Specify an object code format other than your system's
default format. See objdump(1), for information on
listing available formats.
-u
--undefined-only
Display only undefined symbols (those external to each
object file).
-V
--version
Show the version number of nm and exit.
--help
Show a summary of the options to nm and exit.
SEE ALSO
`binutils' entry in info; The GNU Binary Utilities, Roland
H. Pesch (October 1991); ar(1), objdump(1), ranlib(1).
COPYING
Copyright (c) 1991 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies
of this manual provided the copyright notice and this per-
mission notice are preserved on all copies.
Permission is granted to copy and distribute modified ver-
sions of this manual under the conditions for verbatim copy-
ing, provided that the entire resulting derived work is dis-
tributed under the terms of a permission notice identical to
this one.
Permission is granted to copy and distribute translations of
this manual into another language, under the above condi-
tions for modified versions, except that this permission no-
tice may be included in translations approved by the Free
Software Foundation instead of in the original English.