static struct value *
value_of_builtin_frame_fp_reg (struct frame_info *frame, const void *baton)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
if (gdbarch_deprecated_fp_regnum (gdbarch) >= 0)
/* NOTE: cagney/2003-04-24: Since the mere presence of "fp" in the
register name table overrides this built-in $fp register, there
is no real reason for this gdbarch_deprecated_fp_regnum trickery here.
An architecture wanting to implement "$fp" as alias for a raw
register can do so by adding "fp" to register name table (mind
you, doing this is probably a dangerous thing). */
return value_of_register (gdbarch_deprecated_fp_regnum (gdbarch),
frame);
else
{
struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
struct value *val = allocate_value (data_ptr_type);
gdb_byte *buf = value_contents_raw (val);
if (frame == NULL)
memset (buf, 0, TYPE_LENGTH (value_type (val)));
else
gdbarch_address_to_pointer (gdbarch, data_ptr_type,
buf, get_frame_base_address (frame));
return val;
}
}
static struct value *
value_of_builtin_frame_pc_reg (struct frame_info *frame, const void *baton)
{
if (gdbarch_pc_regnum (current_gdbarch) >= 0)
return value_of_register (gdbarch_pc_regnum (current_gdbarch), frame);
else
{
struct value *val = allocate_value (builtin_type_void_data_ptr);
gdb_byte *buf = value_contents_raw (val);
if (frame == NULL)
memset (buf, 0, TYPE_LENGTH (value_type (val)));
else
gdbarch_address_to_pointer (current_gdbarch, builtin_type_void_data_ptr,
buf, get_frame_pc (frame));
return val;
}
}
static struct value *
value_of_builtin_frame_pc_reg (struct frame_info *frame, const void *baton)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
if (gdbarch_pc_regnum (gdbarch) >= 0)
return value_of_register (gdbarch_pc_regnum (gdbarch), frame);
else
{
struct type *func_ptr_type = builtin_type (gdbarch)->builtin_func_ptr;
struct value *val = allocate_value (func_ptr_type);
gdb_byte *buf = value_contents_raw (val);
gdbarch_address_to_pointer (gdbarch, func_ptr_type,
buf, get_frame_pc (frame));
return val;
}
}