/* DWARF 2 Expression Evaluator.
- Copyright (C) 2001-2003, 2005, 2007-2012 Free Software Foundation,
- Inc.
+ Copyright (C) 2001-2014 Free Software Foundation, Inc.
Contributed by Daniel Berlin <dan@dberlin.org>.
#define DWARF2EXPR_H
#include "leb128.h"
+#include "gdbtypes.h"
struct dwarf_expr_context;
-enum call_site_parameter_kind;
-union call_site_parameter_u;
-
-/* Offset relative to the start of its containing CU (compilation unit). */
-typedef struct
-{
- unsigned int cu_off;
-} cu_offset;
-
-/* Offset relative to the start of its .debug_info or .debug_types section. */
-typedef struct
-{
- unsigned int sect_off;
-} sect_offset;
/* Virtual method table for struct dwarf_expr_context below. */
struct dwarf_expr_context_funcs
{
- /* Return the value of register number REGNUM. */
- CORE_ADDR (*read_reg) (void *baton, int regnum);
+ /* Return the value of register number REGNUM (a DWARF register number),
+ read as an address. */
+ CORE_ADDR (*read_addr_from_reg) (void *baton, int regnum);
+
+ /* Return a value of type TYPE, stored in register number REGNUM
+ of the frame associated to the given BATON.
+
+ REGNUM is a DWARF register number. */
+ struct value *(*get_reg_value) (void *baton, struct type *type, int regnum);
/* Read LENGTH bytes at ADDR into BUF. */
void (*read_mem) (void *baton, gdb_byte *buf, CORE_ADDR addr, size_t length);
This can throw an exception if the index is out of range. */
CORE_ADDR (*get_addr_index) (void *baton, unsigned int index);
-#if 0
- /* Not yet implemented. */
-
/* Return the `object address' for DW_OP_push_object_address. */
CORE_ADDR (*get_object_address) (void *baton);
-#endif
};
/* The location of a value. */
context and operations depending on DW_FORM_ref_addr are not allowed. */
int ref_addr_size;
- /* Offset used to relocate DW_OP_addr argument. */
+ /* Offset used to relocate DW_OP_addr and DW_OP_GNU_addr_index arguments. */
CORE_ADDR offset;
/* An opaque argument provided by the caller, which will be passed
/* For DWARF_VALUE_LITERAL, the current literal value's length and
data. For DWARF_VALUE_IMPLICIT_POINTER, LEN is the offset of the
- target DIE of cu_offset kind. */
+ target DIE of sect_offset kind. */
ULONGEST len;
const gdb_byte *data;
struct
{
/* The referent DIE from DW_OP_GNU_implicit_pointer. */
- cu_offset die;
+ sect_offset die;
/* The byte offset into the resulting data. */
LONGEST offset;
} ptr;