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;
};

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 */