unwind_frame
if (!unwind_frame(td, frame))
if (!unwind_frame(td, frame))
if (!unwind_frame(curthread, &frame))
bool unwind_frame(struct thread *, struct unwind_state *);
done = !unwind_frame(curthread, &state);
if (!unwind_frame(curthread, &state))
done = !unwind_frame(curthread, &state);
if (!unwind_frame(curthread, &state))
if (!unwind_frame(curthread, &frame))
bool unwind_frame(struct thread *, struct unwind_state *);
if (!unwind_frame(td, frame))
if (!unwind_frame(td, frame))