include/nlist.h

   1 /*      $NetBSD: nlist.h,v 1.14 2009/08/21 08:42:02 he Exp $    */
   2
   3 /*-
   4  * Copyright (c) 1991, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  * (c) UNIX System Laboratories, Inc.
   7  * All or some portions of this file are derived from material licensed
   8  * to the University of California by American Telephone and Telegraph
   9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  10  * the permission of UNIX System Laboratories, Inc.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)nlist.h     8.2 (Berkeley) 1/21/94
  37  */
  38
  39 #ifndef _NLIST_H_
  40 #define _NLIST_H_
  41
  42 #include <sys/cdefs.h>
  43
  44 /*
  45  * Symbol table entry format.  The #ifdef's are so that programs including
  46  * nlist.h can initialize nlist structures statically.
  47  */
  48 struct nlist {
  49 #ifdef _AOUT_INCLUDE_
  50         union {
  51                 __aconst char *n_name;  /* symbol name (in memory) */
  52                 long n_strx;            /* file string table offset (on disk) */
  53         } n_un;
  54 # define N_NAME(nlp)    ((nlp)->n_un.n_name)
  55 #else
  56         const char *n_name;             /* symbol name (in memory) */
  57 # define N_NAME(nlp)    ((nlp)->n_name)
  58 #endif
  59
  60 #define N_UNDF  0x00            /* undefined */
  61 #define N_ABS   0x02            /* absolute address */
  62 #define N_TEXT  0x04            /* text segment */
  63 #define N_DATA  0x06            /* data segment */
  64 #define N_BSS   0x08            /* bss segment */
  65 #define N_INDR  0x0a            /* alias definition */
  66 #define N_SIZE  0x0c            /* pseudo type, defines a symbol's size */
  67 #define N_COMM  0x12            /* common reference */
  68 #define N_SETA  0x14            /* absolute set element symbol */
  69 #define N_SETT  0x16            /* text set element symbol */
  70 #define N_SETD  0x18            /* data set element symbol */
  71 #define N_SETB  0x1a            /* bss set element symbol */
  72 #define N_SETV  0x1c            /* set vector symbol */
  73 #define N_FN    0x1e            /* file name (N_EXT on) */
  74 #define N_WARN  0x1e            /* warning message (N_EXT off) */
  75
  76 #define N_EXT   0x01            /* external (global) bit, OR'ed in */
  77 #define N_TYPE  0x1e            /* mask for all the type bits */
  78         unsigned char n_type;   /* type defines */
  79
  80         char n_other;           /* spare */
  81 #define n_hash  n_desc          /* used internally by ld(1); XXX */
  82         short n_desc;           /* used by stab entries */
  83         unsigned long n_value;  /* address/value of the symbol */
  84 };
  85
  86 #define N_FORMAT        "%08x"  /* namelist value format; XXX */
  87 #define N_STAB          0x0e0   /* mask for debugger symbols -- stab(5) */
  88
  89 __BEGIN_DECLS
  90 int nlist(const char *, struct nlist *);
  91 int __fdnlist(int, struct nlist *);             /* XXX for libkvm */
  92 __END_DECLS
  93
  94 #endif /* !_NLIST_H_ */