9 unsigned long unwind_get_return_address(struct unwind_state *state)  in unwind_get_return_address()  argument
13 	if (unwind_done(state))  in unwind_get_return_address()
16 	addr = READ_ONCE_NOCHECK(*state->sp);  in unwind_get_return_address()
18 	return ftrace_graph_ret_addr(state->task, &state->graph_idx,  in unwind_get_return_address()
19 				     addr, state->sp);  in unwind_get_return_address()
23 unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)  in unwind_get_return_address_ptr()  argument
28 bool unwind_next_frame(struct unwind_state *state)  in unwind_next_frame()  argument
30 	struct stack_info *info = &state->stack_info;  in unwind_next_frame()
32 	if (unwind_done(state))  in unwind_next_frame()
36 		for (state->sp++; state->sp < info->end; state->sp++) {  in unwind_next_frame()
37 			unsigned long addr = READ_ONCE_NOCHECK(*state->sp);  in unwind_next_frame()
43 		state->sp = PTR_ALIGN(info->next_sp, sizeof(long));  in unwind_next_frame()
45 	} while (!get_stack_info(state->sp, state->task, info,  in unwind_next_frame()
46 				 &state->stack_mask));  in unwind_next_frame()
52 void __unwind_start(struct unwind_state *state, struct task_struct *task,  in __unwind_start()  argument
55 	memset(state, 0, sizeof(*state));  in __unwind_start()
57 	state->task = task;  in __unwind_start()
58 	state->sp   = PTR_ALIGN(first_frame, sizeof(long));  in __unwind_start()
60 	get_stack_info(first_frame, state->task, &state->stack_info,  in __unwind_start()
61 		       &state->stack_mask);  in __unwind_start()
68 	if (!unwind_done(state) &&  in __unwind_start()
69 	    (!on_stack(&state->stack_info, first_frame, sizeof(long)) ||  in __unwind_start()
71 		unwind_next_frame(state);  in __unwind_start()