bsd/include/nlist.h

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