1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2022 Loongson Technology Corporation Limited
 4 */
 5#include <asm/unwind.h>
 6
 7unsigned long unwind_get_return_address(struct unwind_state *state)
 8{
 9	return __unwind_get_return_address(state);
10}
11EXPORT_SYMBOL_GPL(unwind_get_return_address);
12
13void unwind_start(struct unwind_state *state, struct task_struct *task,
14		    struct pt_regs *regs)
15{
16	__unwind_start(state, task, regs);
17	if (!unwind_done(state) && !__kernel_text_address(state->pc))
18		unwind_next_frame(state);
19}
20EXPORT_SYMBOL_GPL(unwind_start);
21
22bool unwind_next_frame(struct unwind_state *state)
23{
24	return default_next_frame(state);
25}
26EXPORT_SYMBOL_GPL(unwind_next_frame);