1 /*
2  * linux/arch/unicore32/include/asm/stacktrace.h
3  *
4  * Code specific to PKUnity SoC and UniCore ISA
5  *
6  * Copyright (C) 2001-2010 GUAN Xue-tao
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  */
12 
13 #ifndef __UNICORE_STACKTRACE_H__
14 #define __UNICORE_STACKTRACE_H__
15 
16 struct stackframe {
17 	unsigned long fp;
18 	unsigned long sp;
19 	unsigned long lr;
20 	unsigned long pc;
21 };
22 
23 #ifdef CONFIG_FRAME_POINTER
24 extern int unwind_frame(struct stackframe *frame);
25 #else
26 #define unwind_frame(f) (-EINVAL)
27 #endif
28 extern void walk_stackframe(struct stackframe *frame,
29 			    int (*fn)(struct stackframe *, void *), void *data);
30 
31 #endif	/* __UNICORE_STACKTRACE_H__ */
32