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MAN page from Trustix binutils-2.10.0.18-2tr.i586.rpm

nm

Section: GNU Development Tools (1)
Updated: 5 November 1991
Index

 

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][-l|--line-numbers][--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 alternatives, areequivalent.

-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 itssymbols.

-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, thismakes C++ function names readable.

-D
--dynamic
Display the dynamic symbols rather than the normal symbols. This isonly meaningful for dynamic objects, such as certain types of sharedlibraries.

-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 beeither upper or lower case.

-g
--extern-only
Display only external symbols.

-n
-v
--numeric-sort
Sort symbols numerically by their addresses, not alphabetically by theirnames.

-p
--no-sort
Don't bother to sort the symbols in any order; just print them in theorder 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 ranlib) of what modulescontain definitions for what names.

-r
--reverse-sort
Reverse the sense of the sort (whether numeric or alphabetic); let thelast come first.

--size-sort
Sort symbols by size. The size is computed as the difference betweenthe value of the symbol and the value of the symbol with the next highervalue. 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).

-l
--line-numbers
For each symbol, use debugging information to try to find a filename andline number. For a defined symbol, look for the line number of theaddress of the symbol. For an undefined symbol, look for the linenumber of a relocation entry which refers to the symbol. If line numberinformation can be found, print it after the other symbol information.

-V
--version
Show the version number ofnmand exit.

--help
Show a summary of the options tonmand 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 ofthis manual provided the copyright notice and this permission noticeare preserved on all copies.

Permission is granted to copy and distribute modified versions of thismanual under the conditions for verbatim copying, provided that theentire resulting derived work is distributed under the terms of apermission notice identical to this one.

Permission is granted to copy and distribute translations of thismanual into another language, under the above conditions for modifiedversions, except that this permission notice may be included intranslations approved by the Free Software Foundation instead of inthe original English.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
COPYING

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