/* SPDX-License-Identifier: GPL-2.0 */#ifndef __ASM_STACKTRACE_H#define __ASM_STACKTRACE_H #include <asm/ptrace.h>#include <linux/llist.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; 	/* address of the LR value on the stack */	unsigned long *lr_addr;#ifdef CONFIG_KRETPROBES	struct llist_node *kr_cur;	struct task_struct *tsk;#endif#ifdef CONFIG_UNWINDER_FRAME_POINTER	bool ex_frame;#endif}; static inline bool on_thread_stack(void){	unsigned long delta = current_stack_pointer ^ (unsigned long)current->stack; 	return delta < THREAD_SIZE;} 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;#ifdef CONFIG_KRETPROBES		frame->kr_cur = NULL;		frame->tsk = current;#endif#ifdef CONFIG_UNWINDER_FRAME_POINTER		frame->ex_frame = in_entry_text(frame->pc);#endif} extern int unwind_frame(struct stackframe *frame);extern void walk_stackframe(struct stackframe *frame,			    bool (*fn)(void *, unsigned long), void *data);extern void dump_mem(const char *lvl, const char *str, unsigned long bottom,		     unsigned long top);extern void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk,			   const char *loglvl); #endif	/* __ASM_STACKTRACE_H */