include/nlist.h

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