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* gnu-v3-abi.c (vtable_ptrdiff_type): New function.

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(gnuv3_decode_method_ptr, gnuv3_print_method_ptr)
	(gnuv3_method_ptr_to_value): Use a better approximation for
	`ptrdiff_t' instead of `long'.

	* m32c-tdep.c (m32c_gdbarch_init): Call set_gdbarch_vbit_in_delta().
	(m32c_push_dummy_call): Dereference pointer type.
This commit is contained in:
Kevin Buettner
2008-12-13 00:39:53 +00:00
parent 36dcf92c3e
commit ed09d7da47
3 changed files with 39 additions and 3 deletions
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14
gdb/m32c-tdep.c
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@ -2018,6 +2018,10 @@ m32c_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
{
struct type *func_type = value_type (function);
/* Dereference function pointer types. */
if (TYPE_CODE (func_type) == TYPE_CODE_PTR)
func_type = TYPE_TARGET_TYPE (func_type);
gdb_assert (TYPE_CODE (func_type) == TYPE_CODE_FUNC ||
TYPE_CODE (func_type) == TYPE_CODE_METHOD);
@ -2596,6 +2600,16 @@ m32c_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_virtual_frame_pointer (arch, m32c_virtual_frame_pointer);
/* m32c function boundary addresses are not necessarily even.
Therefore, the `vbit', which indicates a pointer to a virtual
member function, is stored in the delta field, rather than as
the low bit of a function pointer address.
In order to verify this, see the definition of
TARGET_PTRMEMFUNC_VBIT_LOCATION in gcc/defaults.h along with the
definition of FUNCTION_BOUNDARY in gcc/config/m32c/m32c.h. */
set_gdbarch_vbit_in_delta (arch, 1);
return arch;
}