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Annotation of XNU/osfmk/ddb/nlist.h, revision 1.1

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

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