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1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the
10 * License may not be used to create, or enable the creation or
11 * redistribution of, unlawful or unlicensed copies of an Apple operating
12 * system, or to circumvent, violate, or enable the circumvention or
13 * violation of, any terms of an Apple operating system software license
14 * agreement.
15 *
16 * Please obtain a copy of the License at
17 * http://www.opensource.apple.com/apsl/ and read it before using this
18 * file.
19 *
20 * The Original Code and all software distributed under the License are
21 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
22 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
23 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
25 * Please see the License for the specific language governing rights and
26 * limitations under the License.
27 *
28 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
29 */
30/*
31 * @OSF_COPYRIGHT@
32 */
33/*
34 * HISTORY
35 *
36 * Revision 1.1.1.1 1998/09/22 21:05:48 wsanchez
37 * Import of Mac OS X kernel (~semeria)
38 *
39 * Revision 1.1.1.1 1998/03/07 02:26:09 wsanchez
40 * Import of OSF Mach kernel (~mburg)
41 *
42 * Revision 1.1.11.2 1995/01/06 19:11:11 devrcs
43 * mk6 CR668 - 1.3b26 merge
44 * Add padding for alpha, make n_other unsigned,
45 * fix erroneous def of N_FN.
46 * [1994/10/14 03:40:03 dwm]
47 *
48 * Revision 1.1.11.1 1994/09/23 01:23:37 ezf
49 * change marker to not FREE
50 * [1994/09/22 21:11:49 ezf]
51 *
52 * Revision 1.1.4.3 1993/07/27 18:28:42 elliston
53 * Add ANSI prototypes. CR #9523.
54 * [1993/07/27 18:13:44 elliston]
55 *
56 * Revision 1.1.4.2 1993/06/02 23:13:34 jeffc
57 * Added to OSF/1 R1.3 from NMK15.0.
58 * [1993/06/02 20:58:08 jeffc]
59 *
60 * Revision 1.1 1992/09/30 02:24:29 robert
61 * Initial revision
62 *
63 * $EndLog$
64 */
65/* CMU_HIST */
66/*
67 * Revision 2.4 91/05/14 15:38:20 mrt
68 * Correcting copyright
69 *
70 * Revision 2.3 91/02/05 17:07:42 mrt
71 * Changed to new Mach copyright
72 * [91/01/31 16:20:26 mrt]
73 *
74 * 11-Aug-88 David Golub (dbg) at Carnegie-Mellon University
75 * Added n_un, n_strx definitions for kernel debugger (from
76 * a.out.h).
77 *
78 */
79/* CMU_ENDHIST */
80/*
81 * Mach Operating System
82 * Copyright (c) 1991 Carnegie Mellon University
83 * All Rights Reserved.
84 *
85 * Permission to use, copy, modify and distribute this software and its
86 * documentation is hereby granted, provided that both the copyright
87 * notice and this permission notice appear in all copies of the
88 * software, derivative works or modified versions, and any portions
89 * thereof, and that both notices appear in supporting documentation.
90 *
91 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
92 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
93 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
94 *
95 * Carnegie Mellon requests users of this software to return to
96 *
97 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
98 * School of Computer Science
99 * Carnegie Mellon University
100 * Pittsburgh PA 15213-3890
101 *
102 * any improvements or extensions that they make and grant Carnegie Mellon
103 * the rights to redistribute these changes.
104 */
105/*
106 */
107/*
108 * nlist.h - symbol table entry structure for an a.out file
109 * derived from FSF's a.out.gnu.h
110 *
111 */
112
113#ifndef _DDB_NLIST_H_
114#define _DDB_NLIST_H_
115
116struct nlist {
117 union n_un {
118 char *n_name; /* symbol name */
119 long n_strx; /* index into file string table */
120 } n_un;
121 unsigned char n_type; /* type flag, i.e. N_TEXT etc; see below */
122 unsigned char n_other; /* unused */
123 short n_desc; /* see <stab.h> */
124#if defined(__alpha)
125 int n_pad; /* alignment, used to carry framesize info */
126#endif
127 vm_offset_t n_value; /* value of this symbol (or sdb offset) */
128};
129
130/*
131 * Simple values for n_type.
132 */
133#define N_UNDF 0 /* undefined */
134#define N_ABS 2 /* absolute */
135#define N_TEXT 4 /* text */
136#define N_DATA 6 /* data */
137#define N_BSS 8 /* bss */
138#define N_FN 0x1e /* file name symbol */
139#define N_EXT 1 /* external bit, or'ed in */
140#define N_TYPE 0x1e /* mask for all the type bits */
141#define N_STAB 0xe0 /* if any of these bits set, a SDB entry */
142
143#endif /* !_DDB_NLIST_H_ */