201 static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)  in save_previous_kprobe()  argument
203 	kcb->prev_kprobe.kp = kprobe_running();  in save_previous_kprobe()
204 	kcb->prev_kprobe.status = kcb->kprobe_status;  in save_previous_kprobe()
207 static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)  in restore_previous_kprobe()  argument
209 	__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);  in restore_previous_kprobe()
210 	kcb->kprobe_status = kcb->prev_kprobe.status;  in restore_previous_kprobe()
233 singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb)  in singlestep()  argument
248 	struct kprobe_ctlblk *kcb;  in kprobe_handler()  local
250 	kcb = get_kprobe_ctlblk();  in kprobe_handler()
270 			switch (kcb->kprobe_status) {  in kprobe_handler()
275 				save_previous_kprobe(kcb);  in kprobe_handler()
277 				kcb->kprobe_status = KPROBE_REENTER;  in kprobe_handler()
278 				singlestep(p, regs, kcb);  in kprobe_handler()
279 				restore_previous_kprobe(kcb);  in kprobe_handler()
288 			kcb->kprobe_status = KPROBE_HIT_ACTIVE;  in kprobe_handler()
298 				kcb->kprobe_status = KPROBE_HIT_SS;  in kprobe_handler()
299 				singlestep(p, regs, kcb);  in kprobe_handler()
301 					kcb->kprobe_status = KPROBE_HIT_SSDONE;  in kprobe_handler()
317 			kcb->kprobe_status = KPROBE_HIT_SS;  in kprobe_handler()
318 			singlestep(cur, regs, kcb);  in kprobe_handler()
320 				kcb->kprobe_status = KPROBE_HIT_SSDONE;  in kprobe_handler()
347 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in kprobe_fault_handler()  local
349 	switch (kcb->kprobe_status) {  in kprobe_fault_handler()
360 		if (kcb->kprobe_status == KPROBE_REENTER) {  in kprobe_fault_handler()
361 			restore_previous_kprobe(kcb);  in kprobe_fault_handler()
500 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in setjmp_pre_handler()  local
504 	kcb->jprobe_saved_regs = *regs;  in setjmp_pre_handler()
505 	memcpy(kcb->jprobes_stack, (void *)sp_addr, MIN_STACK_SIZE(sp_addr));  in setjmp_pre_handler()
524 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in jprobe_return()  local
571 		: "r" (kcb->jprobe_saved_regs.ARM_sp),  in jprobe_return()
582 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in longjmp_break_handler()  local
583 	long stack_addr = kcb->jprobe_saved_regs.ARM_sp;  in longjmp_break_handler()
590 				(struct pt_regs *)kcb->jprobe_saved_regs.ARM_sp;  in longjmp_break_handler()
599 		*regs = kcb->jprobe_saved_regs;  in longjmp_break_handler()
600 		memcpy((void *)stack_addr, kcb->jprobes_stack,  in longjmp_break_handler()