osfmk/ddb/nlist.h

   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
 116 struct  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_ */