arch/arm/kernel/stacktrace.h

   1 struct stackframe {
   2         unsigned long fp;
   3         unsigned long sp;
   4         unsigned long lr;
   5         unsigned long pc;
   6 };
   7
   8 int walk_stackframe(unsigned long fp, unsigned long low, unsigned long high,
   9                     int (*fn)(struct stackframe *, void *), void *data);