gdb/dwarf2loc.h

   1 /* Dwarf2 location expression support for GDB.
   2    Copyright 2003 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   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., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #if !defined (DWARF2LOC_H)
  22 #define DWARF2LOC_H
  23
  24 /* This header is private to the DWARF-2 reader.  It is shared between
  25    dwarf2read.c and dwarf2loc.c.  */
  26
  27 /* The symbol location baton types used by the DWARF-2 reader (i.e.
  28    SYMBOL_LOCATION_BATON for a LOC_COMPUTED symbol).  "struct
  29    dwarf2_locexpr_baton" is for a symbol with a single location
  30    expression; "struct dwarf2_loclist_baton" is for a symbol with a
  31    location list.  */
  32
  33 struct dwarf2_locexpr_baton
  34 {
  35   /* Pointer to the start of the location expression.  */
  36   unsigned char *data;
  37
  38   /* Length of the location expression.  */
  39   unsigned short size;
  40
  41   /* The objfile containing the symbol whose location we're computing.  */
  42   struct objfile *objfile;
  43 };
  44
  45 struct dwarf2_loclist_baton
  46 {
  47   /* The initial base address for the location list, based on the compilation
  48      unit.  */
  49   CORE_ADDR base_address;
  50
  51   /* Pointer to the start of the location list.  */
  52   unsigned char *data;
  53
  54   /* Length of the location list.  */
  55   unsigned short size;
  56
  57   /* The objfile containing the symbol whose location we're computing.  */
  58   struct objfile *objfile;
  59 };
  60
  61 extern struct location_funcs dwarf2_locexpr_funcs;
  62 extern struct location_funcs dwarf2_loclist_funcs;
  63
  64 #endif