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[deliverable/binutils-gdb.git] / gdb / dwarf2loc.h

diff --git a/gdb/dwarf2loc.h b/gdb/dwarf2loc.h
index fde132922ac4a5fb94fd63fb0c229ed955c28389..632568e1e803306647c77fa222244a0871894dee 100644 (file)
--- a/gdb/dwarf2loc.h
+++ b/gdb/dwarf2loc.h
@@ -1,11 +1,12 @@
-/* Dwarf2 location expression support for GDB.
-   Copyright 2003 Free Software Foundation, Inc.
+/* DWARF 2 location expression support for GDB.
+
+   Copyright (C) 2003, 2005, 2007, 2008 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -14,26 +15,61 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #if !defined (DWARF2LOC_H)
 #define DWARF2LOC_H
 
+struct symbol_ops;
+struct objfile;
+struct dwarf2_per_cu_data;
+
 /* This header is private to the DWARF-2 reader.  It is shared between
    dwarf2read.c and dwarf2loc.c.  */
 
-/* The symbol location baton type used by the DWARF-2 reader (i.e.
-   SYMBOL_LOCATION_BATON for a LOC_COMPUTED symbol).  */
+/* Return the OBJFILE associated with the compilation unit CU.  */
+struct objfile *dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *cu);
+
+/* Return the address size given in the compilation unit header for CU.  */
+CORE_ADDR dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu);
+
+/* The symbol location baton types used by the DWARF-2 reader (i.e.
+   SYMBOL_LOCATION_BATON for a LOC_COMPUTED symbol).  "struct
+   dwarf2_locexpr_baton" is for a symbol with a single location
+   expression; "struct dwarf2_loclist_baton" is for a symbol with a
+   location list.  */
 
 struct dwarf2_locexpr_baton
 {
-  unsigned char *data;
-  unsigned short size;
-  struct objfile *objfile;
+  /* Pointer to the start of the location expression.  */
+  gdb_byte *data;
+
+  /* Length of the location expression.  */
+  unsigned long size;
+
+  /* The compilation unit containing the symbol whose location
+     we're computing.  */
+  struct dwarf2_per_cu_data *per_cu;
+};
+
+struct dwarf2_loclist_baton
+{
+  /* The initial base address for the location list, based on the compilation
+     unit.  */
+  CORE_ADDR base_address;
+
+  /* Pointer to the start of the location list.  */
+  gdb_byte *data;
+
+  /* Length of the location list.  */
+  unsigned long size;
+
+  /* The compilation unit containing the symbol whose location
+     we're computing.  */
+  struct dwarf2_per_cu_data *per_cu;
 };
 
-extern struct location_funcs dwarf2_locexpr_funcs;
+extern const struct symbol_ops dwarf2_locexpr_funcs;
+extern const struct symbol_ops dwarf2_loclist_funcs;
 
-#endif
+#endif /* dwarf2loc.h */