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nm - list symbols from object files.
- 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...]
GNU nm lists the symbols from object files objfile.
If no object files are given as arguments, nm assumes `a.out'.
The
long and short forms of options, shown here as alternatives, 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 symbols. 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 alphabetically 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 ranlib) of what modules contain definitions for what names.
- -r
- --reverse-sort
- Reverse the sense of the sort (whether numeric or alphabetic);
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).
- -l
- --line-numbers
- For each symbol, use debugging information to try
to find a filename and line number. For a defined symbol, look for the
line number of the address of the symbol. For an undefined symbol, look
for the line number of a relocation entry which refers to the symbol. If
line number information can be found, print it after the other symbol information.
- -V
- --version
- Show the version number of nm and exit.
- --help
- Show a summary
of the options to nm and exit.
`binutils' entry in info; The
GNU Binary Utilities, Roland H. Pesch (October 1991); ar(1)
, objdump(1)
,
ranlib(1)
.
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 permission notice are preserved on all copies.
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.
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.
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