44 void __unwind_start(struct unwind_state *state, struct task_struct *task,
46 bool unwind_next_frame(struct unwind_state *state);
47 unsigned long unwind_get_return_address(struct unwind_state *state);
49 static inline bool unwind_done(struct unwind_state *state)  in unwind_done()  argument
51 	return state->stack_info.type == STACK_TYPE_UNKNOWN;  in unwind_done()
54 static inline bool unwind_error(struct unwind_state *state)  in unwind_error()  argument
56 	return state->error;  in unwind_error()
59 static inline void unwind_start(struct unwind_state *state,  in unwind_start()  argument
65 	__unwind_start(state, task, regs, sp);  in unwind_start()
68 static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)  in unwind_get_entry_regs()  argument
70 	return unwind_done(state) ? NULL : state->regs;  in unwind_get_entry_regs()
73 #define unwind_for_each_frame(state, task, regs, first_frame)	\  argument
74 	for (unwind_start(state, task, regs, first_frame);	\
75 	     !unwind_done(state);				\
76 	     unwind_next_frame(state))