Re: [patch/rfc] Add a sentinel frame

[Andrew Cagney <ac131313@redhat.com>]

> +static void
> +x86_64_save_dummy_frame_tos (CORE_ADDR sp)
> +{
> +  /* We must add the size of the return address that is already
> +     put on the stack.  */
> +  generic_save_dummy_frame_tos (sp + sizeof(CORE_ADDR));

Yes, but use TYPE_LENGTH (builtin_type_void_{code/data}_ptr).

> +}
> +
> +struct frame_id
> +x86_64_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *frame)
> +{
> +  struct frame_id id;
> +
> +  id.pc = frame_pc_unwind (frame);
> +  frame_unwind_unsigned_register (frame, SP_REGNUM, &id.base);

Andrew

> +  return id;
> +}
> +