#ifndef __ASM_STACKTRACE_H#define __ASM_STACKTRACE_H #include <asm/ptrace.h> struct stackframe {	/*	 * FP member should hold R7 when CONFIG_THUMB2_KERNEL is enabled	 * and R11 otherwise.	 */	unsigned long fp;	unsigned long sp;	unsigned long lr;	unsigned long pc;}; static __always_inlinevoid arm_get_current_stackframe(struct pt_regs *regs, struct stackframe *frame){		frame->fp = frame_pointer(regs);		frame->sp = regs->ARM_sp;		frame->lr = regs->ARM_lr;		frame->pc = regs->ARM_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 */