|  | // Copyright 2013 The Go Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style | 
|  | // license that can be found in the LICENSE file. | 
|  |  | 
|  | // Nm lists the symbols defined or used by an object file, archive, or executable. | 
|  | // | 
|  | // Usage: | 
|  | //	go tool nm [options] file... | 
|  | // | 
|  | // The default output prints one line per symbol, with three space-separated | 
|  | // fields giving the address (in hexadecimal), type (a character), and name of | 
|  | // the symbol. The types are: | 
|  | // | 
|  | //	T	text (code) segment symbol | 
|  | //	t	static text segment symbol | 
|  | //	R	read-only data segment symbol | 
|  | //	r	static read-only data segment symbol | 
|  | //	D	data segment symbol | 
|  | //	d	static data segment symbol | 
|  | //	B	bss segment symbol | 
|  | //	b	static bss segment symbol | 
|  | //	C	constant address | 
|  | //	U	referenced but undefined symbol | 
|  | // | 
|  | // Following established convention, the address is omitted for undefined | 
|  | // symbols (type U). | 
|  | // | 
|  | // The options control the printed output: | 
|  | // | 
|  | //	-n | 
|  | //		an alias for -sort address (numeric), | 
|  | //		for compatibility with other nm commands | 
|  | //	-size | 
|  | //		print symbol size in decimal between address and type | 
|  | //	-sort {address,name,none,size} | 
|  | //		sort output in the given order (default name) | 
|  | //		size orders from largest to smallest | 
|  | //	-type | 
|  | //		print symbol type after name | 
|  | // | 
|  | package main |