101 static void dump_instr(const char *lvl, struct pt_regs *regs)  in dump_instr()  argument
103 	unsigned long addr = instruction_pointer(regs);  in dump_instr()
133 static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)  in dump_backtrace()  argument
137 	pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk);  in dump_backtrace()
142 	if (regs) {  in dump_backtrace()
143 		frame.fp = regs->regs[29];  in dump_backtrace()
144 		frame.sp = regs->sp;  in dump_backtrace()
145 		frame.pc = regs->pc;  in dump_backtrace()
189 		 struct pt_regs *regs)  in __die()  argument
199 	ret = notify_die(DIE_OOPS, str, regs, err, 0, SIGSEGV);  in __die()
204 	__show_regs(regs);  in __die()
208 	if (!user_mode(regs) || in_interrupt()) {  in __die()
209 		dump_mem(KERN_EMERG, "Stack: ", regs->sp,  in __die()
211 		dump_backtrace(regs, tsk);  in __die()
212 		dump_instr(KERN_EMERG, regs);  in __die()
223 void die(const char *str, struct pt_regs *regs, int err)  in die()  argument
233 	ret = __die(str, err, thread, regs);  in die()
235 	if (regs && kexec_should_crash(thread->task))  in die()
236 		crash_kexec(regs);  in die()
251 void arm64_notify_die(const char *str, struct pt_regs *regs,  in arm64_notify_die()  argument
254 	if (user_mode(regs)) {  in arm64_notify_die()
259 		die(str, regs, err);  in arm64_notify_die()
284 static int call_undef_hook(struct pt_regs *regs)  in call_undef_hook()  argument
289 	int (*fn)(struct pt_regs *regs, u32 instr) = NULL;  in call_undef_hook()
290 	void __user *pc = (void __user *)instruction_pointer(regs);  in call_undef_hook()
292 	if (!user_mode(regs))  in call_undef_hook()
295 	if (compat_thumb_mode(regs)) {  in call_undef_hook()
318 			(regs->pstate & hook->pstate_mask) == hook->pstate_val)  in call_undef_hook()
323 	return fn ? fn(regs, instr) : 1;  in call_undef_hook()
326 asmlinkage void __exception do_undefinstr(struct pt_regs *regs)  in do_undefinstr()  argument
329 	void __user *pc = (void __user *)instruction_pointer(regs);  in do_undefinstr()
332 	if (!aarch32_break_handler(regs))  in do_undefinstr()
335 	if (call_undef_hook(regs) == 0)  in do_undefinstr()
342 		dump_instr(KERN_INFO, regs);  in do_undefinstr()
350 	arm64_notify_die("Oops - undefined instruction", regs, &info, 0);  in do_undefinstr()
353 long compat_arm_syscall(struct pt_regs *regs);
355 asmlinkage long do_ni_syscall(struct pt_regs *regs)  in do_ni_syscall()  argument
360 		ret = compat_arm_syscall(regs);  in do_ni_syscall()
368 			task_pid_nr(current), (int)regs->syscallno);  in do_ni_syscall()
369 		dump_instr("", regs);  in do_ni_syscall()
370 		if (user_mode(regs))  in do_ni_syscall()
371 			__show_regs(regs);  in do_ni_syscall()
425 asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr)  in bad_mode()  argument
428 	void __user *pc = (void __user *)instruction_pointer(regs);  in bad_mode()
433 	__show_regs(regs);  in bad_mode()
440 	arm64_notify_die("Oops - bad mode", regs, &info, 0);  in bad_mode()