ld/ldsym.h

   1 /* ldsym.h -
   2    Copyright (C) 1991 Free Software Foundation, Inc.
   3
   4    This file is part of GLD, the Gnu Linker.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 typedef struct user_symbol_struct
  21 {
  22   /* Point to next symbol in this hash chain */
  23   struct user_symbol_struct *link;
  24
  25   /* Name of this symbol.  */
  26   CONST char *name;
  27
  28   /* Pointer to next symbol in order of symbol creation */
  29   struct user_symbol_struct *next;
  30
  31   /* Chain of asymbols we see from input files
  32      note that we point to the entry in the canonical table of
  33      the pointer to the asymbol, *not* the asymbol. This means
  34      that we can run back and fix all refs to point to the
  35      defs nearly for free.
  36      */
  37   asymbol **srefs_chain;
  38   asymbol **sdefs_chain;
  39
  40   /* only ever point to the largest ever common definition -
  41    * all the rest are turned into refs
  42    * scoms and sdefs are never != NULL at same time
  43    */
  44   asymbol **scoms_chain;
  45
  46
  47
  48
  49
  50   /* If this symbol is a constructor */
  51 #define SYM_CONSTRUCTOR 1
  52   /* If this symbol is a warning symbol */
  53 #define SYM_WARNING 2
  54   /* IF this is an alias for another symbol */
  55 #define SYM_INDIRECT 4
  56   int flags;
  57 } ldsym_type;
  58
  59
  60 PROTO(ldsym_type *, ldsym_get, (CONST char *));
  61 PROTO(ldsym_type *, ldsym_get_soft, (CONST char *));
  62 PROTO(void, ldsym_print_symbol_table,(void));
  63 PROTO(void, ldsym_write, (void));
  64 PROTO(boolean, ldsym_undefined, (CONST char *));
  65 #define FOR_EACH_LDSYM(x)                                               \
  66         extern ldsym_type *symbol_head;                                 \
  67         ldsym_type *x;                                                  \
  68         for (x = symbol_head; x != (ldsym_type *)NULL; x = x->next)
  69
  70