1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) 2022 Loongson Technology Corporation Limited
4 */
5 #include <asm/unwind.h>
6
7 unsigned long unwind_get_return_address(struct unwind_state *state)
8 {
9 return __unwind_get_return_address(state);
10 }
11 EXPORT_SYMBOL_GPL(unwind_get_return_address);
12
13 void 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 }
20 EXPORT_SYMBOL_GPL(unwind_start);
21
22 bool unwind_next_frame(struct unwind_state *state)
23 {
24 return default_next_frame(state);
25 }
26 EXPORT_SYMBOL_GPL(unwind_next_frame);
27
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.