src/export/sym.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /*
  11  * sym  -       symbol table definitions, VRMIX kernel pseudo-TOC
  12  */
  13
  14 struct toc_syment {
  15 #ifdef __XCOFF64__
  16     unsigned long long n_value;
  17     union {
  18         struct {
  19             int _n_offset;      /* offset into string table */
  20         } _n_n;
  21         char *_n_nptr;          /* Allows for overlaying */
  22     } _n;
  23 #else                           /* __XCOFF64__ */
  24     union {
  25         char _n_name[8];        /* old COFF version */
  26         struct {
  27             int _n_zeroes;      /* new == 0 */
  28             int _n_offset;      /* offset into string table */
  29         } _n_n;
  30         char *_n_nptr[2];       /* allows for overlaying */
  31     } _n;
  32     int n_value;                /* value of symbol */
  33 #endif                          /* __XCOFF64__ */
  34 };
  35 #ifdef __XCOFF64__
  36 #define n_nptr          _n._n_nptr
  37 #else
  38 #define n_name          _n._n_name
  39 #define n_nptr          _n._n_nptr[1]
  40 #define n_zeroes        _n._n_n._n_zeroes
  41 #endif
  42 #define n_offset        _n._n_n._n_offset
  43
  44 typedef struct toc_syment sym_t;
  45
  46 extern struct toc_syment *toc_syms;     /* symbol table         */
  47 extern caddr_t toc_strs;        /* string table         */
  48 extern toc_nsyms;               /* # symbols            */
  49 extern sym_t *sym_flex();
  50 extern sym_t *sym_lookup();