include/nlist.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*-
  26  * Copyright (c) 1991, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  * (c) UNIX System Laboratories, Inc.
  29  * All or some portions of this file are derived from material licensed
  30  * to the University of California by American Telephone and Telegraph
  31  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  32  * the permission of UNIX System Laboratories, Inc.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. All advertising materials mentioning features or use of this software
  43  *    must display the following acknowledgement:
  44  *      This product includes software developed by the University of
  45  *      California, Berkeley and its contributors.
  46  * 4. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)nlist.h     8.2 (Berkeley) 1/21/94
  63  */
  64
  65 #ifndef _NLIST_H_
  66 #define _NLIST_H_
  67
  68 /*
  69  * Symbol table entry format.  The #ifdef's are so that programs including
  70  * nlist.h can initialize nlist structures statically.
  71  */
  72 struct nlist {
  73 #ifdef _AOUT_INCLUDE_
  74         union {
  75                 char *n_name;   /* symbol name (in memory) */
  76                 long n_strx;    /* file string table offset (on disk) */
  77         } n_un;
  78 #else
  79         char *n_name;           /* symbol name (in memory) */
  80 #endif
  81
  82 #define N_UNDF  0x00            /* undefined */
  83 #define N_ABS   0x02            /* absolute address */
  84 #define N_TEXT  0x04            /* text segment */
  85 #define N_DATA  0x06            /* data segment */
  86 #define N_BSS   0x08            /* bss segment */
  87 #define N_COMM  0x12            /* common reference */
  88 #define N_FN    0x1e            /* file name */
  89
  90 #define N_EXT   0x01            /* external (global) bit, OR'ed in */
  91 #define N_TYPE  0x1e            /* mask for all the type bits */
  92         unsigned char n_type;   /* type defines */
  93
  94         char n_other;           /* spare */
  95 #define n_hash  n_desc          /* used internally by ld(1); XXX */
  96         short n_desc;           /* used by stab entries */
  97         unsigned long n_value;  /* address/value of the symbol */
  98 };
  99
 100 #define N_FORMAT        "%08x"  /* namelist value format; XXX */
 101 #define N_STAB          0x0e0   /* mask for debugger symbols -- stab(5) */
 102
 103 #include <sys/cdefs.h>
 104
 105 __BEGIN_DECLS
 106 int nlist __P((const char *, struct nlist *));
 107 __END_DECLS
 108
 109 #endif /* !_NLIST_H_ */