-/* 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, 2009, 2010
+ 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,
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_computed_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);
+
+/* Return the offset size given in the compilation unit header for CU. */
+int dwarf2_per_cu_offset_size (struct dwarf2_per_cu_data *cu);
+
+struct dwarf2_locexpr_baton dwarf2_fetch_die_location_block
+ (unsigned int offset, struct dwarf2_per_cu_data *per_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. */
+ const 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. */
+ const 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_computed_ops dwarf2_locexpr_funcs;
+extern const struct symbol_computed_ops dwarf2_loclist_funcs;
-#endif
+#endif /* dwarf2loc.h */