nlist.h revision 1.4 
1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 *	from: @(#)nlist.h	8.2 (Berkeley) 1/21/94
39 *	$Id: nlist.h,v 1.4 1994/10/19 20:29:41 pk Exp $
40 */
41
42#ifndef _NLIST_H_
43#define	_NLIST_H_
44
45/*
46 * Symbol table entry format.  The #ifdef's are so that programs including
47 * nlist.h can initialize nlist structures statically.
48 */
49struct nlist {
50#ifdef _AOUT_INCLUDE_
51	union {
52		char *n_name;	/* symbol name (in memory) */
53		long n_strx;	/* file string table offset (on disk) */
54	} n_un;
55#else
56	char *n_name;		/* symbol name (in memory) */
57#endif
58
59#define	N_UNDF	0x00		/* undefined */
60#define	N_ABS	0x02		/* absolute address */
61#define	N_TEXT	0x04		/* text segment */
62#define	N_DATA	0x06		/* data segment */
63#define	N_BSS	0x08		/* bss segment */
64#define	N_INDR	0x0a		/* alias definition */
65#define	N_SIZE	0x0c		/* pseudo type, defines a symbol's size */
66#define	N_COMM	0x12		/* common reference */
67#define	N_FN	0x1e		/* file name (N_EXT on) */
68#define	N_WARN	0x1e		/* warning message (N_EXT off) */
69
70#define	N_EXT	0x01		/* external (global) bit, OR'ed in */
71#define	N_TYPE	0x1e		/* mask for all the type bits */
72	unsigned char n_type;	/* type defines */
73
74	char n_other;		/* spare */
75#define	n_hash	n_desc		/* used internally by ld(1); XXX */
76	short n_desc;		/* used by stab entries */
77	unsigned long n_value;	/* address/value of the symbol */
78};
79
80#define	N_FORMAT	"%08x"	/* namelist value format; XXX */
81#define	N_STAB		0x0e0	/* mask for debugger symbols -- stab(5) */
82
83#include <sys/cdefs.h>
84
85__BEGIN_DECLS
86int nlist __P((const char *, struct nlist *));
87__END_DECLS
88
89#endif /* !_NLIST_H_ */
90