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/*
 * linux/arch/unicore32/include/asm/stacktrace.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 * Copyright (C) 2001-2010 GUAN Xue-tao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __UNICORE_STACKTRACE_H__
#define __UNICORE_STACKTRACE_H__

struct stackframe {
	unsigned long fp;
	unsigned long sp;
	unsigned long lr;
	unsigned long pc;
};

#ifdef CONFIG_FRAME_POINTER
extern int unwind_frame(struct stackframe *frame);
#else
#define unwind_frame(f) (-EINVAL)
#endif
extern void walk_stackframe(struct stackframe *frame,
			    int (*fn)(struct stackframe *, void *), void *data);

#endif	/* __UNICORE_STACKTRACE_H__ */