File: stacktrace.h

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#ifndef __ASM_STACKTRACE_H
#define __ASM_STACKTRACE_H

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

struct metag_frame {
	unsigned long fp;
	unsigned long lr;
};

extern int unwind_frame(struct stackframe *frame);
extern void walk_stackframe(struct stackframe *frame,
			    int (*fn)(struct stackframe *, void *), void *data);

#endif	/* __ASM_STACKTRACE_H */