[apple/xnu.git] / osfmk / ddb / nlist.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/*
 * HISTORY
 * 
 * Revision 1.1.1.1  1998/09/22 21:05:48  wsanchez
 * Import of Mac OS X kernel (~semeria)
 *
 * Revision 1.1.1.1  1998/03/07 02:26:09  wsanchez
 * Import of OSF Mach kernel (~mburg)
 *
 * Revision 1.1.11.2  1995/01/06  19:11:11  devrcs
 * 	mk6 CR668 - 1.3b26 merge
 * 	Add padding for alpha, make n_other unsigned,
 * 	fix erroneous def of N_FN.
 * 	[1994/10/14  03:40:03  dwm]
 *
 * Revision 1.1.11.1  1994/09/23  01:23:37  ezf
 * 	change marker to not FREE
 * 	[1994/09/22  21:11:49  ezf]
 * 
 * Revision 1.1.4.3  1993/07/27  18:28:42  elliston
 * 	Add ANSI prototypes.  CR #9523.
 * 	[1993/07/27  18:13:44  elliston]
 * 
 * Revision 1.1.4.2  1993/06/02  23:13:34  jeffc
 * 	Added to OSF/1 R1.3 from NMK15.0.
 * 	[1993/06/02  20:58:08  jeffc]
 * 
 * Revision 1.1  1992/09/30  02:24:29  robert
 * 	Initial revision
 * 
 * $EndLog$
 */
/* CMU_HIST */
/*
 * Revision 2.4  91/05/14  15:38:20  mrt
 * 	Correcting copyright
 * 
 * Revision 2.3  91/02/05  17:07:42  mrt
 * 	Changed to new Mach copyright
 * 	[91/01/31  16:20:26  mrt]
 * 
 * 11-Aug-88  David Golub (dbg) at Carnegie-Mellon University
 *	Added n_un, n_strx definitions for kernel debugger (from
 *	a.out.h).
 *
 */
/* CMU_ENDHIST */
/*
 * Mach Operating System
 * Copyright (c) 1991 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie Mellon 
 * the rights to redistribute these changes.
 */
/*
 */
/*
 *  nlist.h - symbol table entry  structure for an a.out file
 *  derived from FSF's a.out.gnu.h
 *
 */

#ifndef _DDB_NLIST_H_
#define _DDB_NLIST_H_

struct	nlist {
	union n_un {
	    char	*n_name;	/* symbol name */
	    long	n_strx;		/* index into file string table */
	} n_un;
	unsigned char n_type;	/* type flag, i.e. N_TEXT etc; see below */
	unsigned char n_other;	/* unused */
	short	n_desc;		/* see <stab.h> */
#if	defined(__alpha)
	int	n_pad;		/* alignment, used to carry framesize info */
#endif
	vm_offset_t n_value;	/* value of this symbol (or sdb offset) */
};

/*
 * Simple values for n_type.
 */
#define	N_UNDF	0		/* undefined */
#define	N_ABS	2		/* absolute */
#define	N_TEXT	4		/* text */
#define	N_DATA	6		/* data */
#define	N_BSS	8		/* bss */
#define	N_FN	0x1e		/* file name symbol */
#define	N_EXT	1		/* external bit, or'ed in */
#define	N_TYPE	0x1e		/* mask for all the type bits */
#define	N_STAB	0xe0		/* if any of these bits set, a SDB entry */

#endif	/* !_DDB_NLIST_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	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 License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* HISTORY
	33	*
	34	* Revision 1.1.1.1 1998/09/22 21:05:48 wsanchez
	35	* Import of Mac OS X kernel (~semeria)
	36	*
	37	* Revision 1.1.1.1 1998/03/07 02:26:09 wsanchez
	38	* Import of OSF Mach kernel (~mburg)
	39	*
	40	* Revision 1.1.11.2 1995/01/06 19:11:11 devrcs
	41	* mk6 CR668 - 1.3b26 merge
	42	* Add padding for alpha, make n_other unsigned,
	43	* fix erroneous def of N_FN.
	44	* [1994/10/14 03:40:03 dwm]
	45	*
	46	* Revision 1.1.11.1 1994/09/23 01:23:37 ezf
	47	* change marker to not FREE
	48	* [1994/09/22 21:11:49 ezf]
	49	*
	50	* Revision 1.1.4.3 1993/07/27 18:28:42 elliston
	51	* Add ANSI prototypes. CR #9523.
	52	* [1993/07/27 18:13:44 elliston]
	53	*
	54	* Revision 1.1.4.2 1993/06/02 23:13:34 jeffc
	55	* Added to OSF/1 R1.3 from NMK15.0.
	56	* [1993/06/02 20:58:08 jeffc]
	57	*
	58	* Revision 1.1 1992/09/30 02:24:29 robert
	59	* Initial revision
	60	*
	61	* $EndLog$
	62	*/
	63	/* CMU_HIST */
	64	/*
	65	* Revision 2.4 91/05/14 15:38:20 mrt
	66	* Correcting copyright
	67	*
	68	* Revision 2.3 91/02/05 17:07:42 mrt
	69	* Changed to new Mach copyright
	70	* [91/01/31 16:20:26 mrt]
	71	*
	72	* 11-Aug-88 David Golub (dbg) at Carnegie-Mellon University
	73	* Added n_un, n_strx definitions for kernel debugger (from
	74	* a.out.h).
	75	*
	76	*/
	77	/* CMU_ENDHIST */
	78	/*
	79	* Mach Operating System
	80	* Copyright (c) 1991 Carnegie Mellon University
	81	* All Rights Reserved.
	82	*
	83	* Permission to use, copy, modify and distribute this software and its
	84	* documentation is hereby granted, provided that both the copyright
	85	* notice and this permission notice appear in all copies of the
	86	* software, derivative works or modified versions, and any portions
	87	* thereof, and that both notices appear in supporting documentation.
	88	*
	89	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	90	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
91	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
92	*
93	* Carnegie Mellon requests users of this software to return to
94	*
95	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
96	* School of Computer Science
97	* Carnegie Mellon University
98	* Pittsburgh PA 15213-3890
99	*
100	* any improvements or extensions that they make and grant Carnegie Mellon
101	* the rights to redistribute these changes.
102	*/
103	/*
104	*/
105	/*
106	* nlist.h - symbol table entry structure for an a.out file
107	* derived from FSF's a.out.gnu.h
108	*
109	*/
110
111	#ifndef _DDB_NLIST_H_
112	#define _DDB_NLIST_H_
113
114	struct nlist {
115	union n_un {
116	char n_name; / symbol name */
117	long n_strx; /* index into file string table */
118	} n_un;
119	unsigned char n_type; /* type flag, i.e. N_TEXT etc; see below */
120	unsigned char n_other; /* unused */
121	short n_desc; /* see <stab.h> */
122	#if defined(__alpha)
123	int n_pad; /* alignment, used to carry framesize info */
124	#endif
125	vm_offset_t n_value; /* value of this symbol (or sdb offset) */
126	};
127
128	/*
129	* Simple values for n_type.
130	*/
131	#define N_UNDF 0 /* undefined */
132	#define N_ABS 2 /* absolute */
133	#define N_TEXT 4 /* text */
134	#define N_DATA 6 /* data */
135	#define N_BSS 8 /* bss */
136	#define N_FN 0x1e /* file name symbol */
137	#define N_EXT 1 /* external bit, or'ed in */
138	#define N_TYPE 0x1e /* mask for all the type bits */
139	#define N_STAB 0xe0 /* if any of these bits set, a SDB entry */
140
141	#endif /* !_DDB_NLIST_H_ */