76 static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)  in save_previous_kprobe()  argument
78 	kcb->prev_kprobe.kp = kprobe_running();  in save_previous_kprobe()
79 	kcb->prev_kprobe.status = kcb->kprobe_status;  in save_previous_kprobe()
80 	kcb->prev_kprobe.orig_tnpc = kcb->kprobe_orig_tnpc;  in save_previous_kprobe()
81 	kcb->prev_kprobe.orig_tstate_pil = kcb->kprobe_orig_tstate_pil;  in save_previous_kprobe()
84 static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)  in restore_previous_kprobe()  argument
86 	__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);  in restore_previous_kprobe()
87 	kcb->kprobe_status = kcb->prev_kprobe.status;  in restore_previous_kprobe()
88 	kcb->kprobe_orig_tnpc = kcb->prev_kprobe.orig_tnpc;  in restore_previous_kprobe()
89 	kcb->kprobe_orig_tstate_pil = kcb->prev_kprobe.orig_tstate_pil;  in restore_previous_kprobe()
93 				struct kprobe_ctlblk *kcb)  in set_current_kprobe()  argument
96 	kcb->kprobe_orig_tnpc = regs->tnpc;  in set_current_kprobe()
97 	kcb->kprobe_orig_tstate_pil = (regs->tstate & TSTATE_PIL);  in set_current_kprobe()
101 			struct kprobe_ctlblk *kcb)  in prepare_singlestep()  argument
108 		regs->tnpc = kcb->kprobe_orig_tnpc;  in prepare_singlestep()
120 	struct kprobe_ctlblk *kcb;  in kprobe_handler()  local
127 	kcb = get_kprobe_ctlblk();  in kprobe_handler()
132 			if (kcb->kprobe_status == KPROBE_HIT_SS) {  in kprobe_handler()
134 					kcb->kprobe_orig_tstate_pil);  in kprobe_handler()
143 			save_previous_kprobe(kcb);  in kprobe_handler()
144 			set_current_kprobe(p, regs, kcb);  in kprobe_handler()
146 			kcb->kprobe_status = KPROBE_REENTER;  in kprobe_handler()
147 			prepare_singlestep(p, regs, kcb);  in kprobe_handler()
181 	set_current_kprobe(p, regs, kcb);  in kprobe_handler()
182 	kcb->kprobe_status = KPROBE_HIT_ACTIVE;  in kprobe_handler()
187 	prepare_singlestep(p, regs, kcb);  in kprobe_handler()
188 	kcb->kprobe_status = KPROBE_HIT_SS;  in kprobe_handler()
281 		struct pt_regs *regs, struct kprobe_ctlblk *kcb)  in resume_execution()  argument
288 	regs->tpc = kcb->kprobe_orig_tnpc;  in resume_execution()
293 			kcb->kprobe_orig_tstate_pil);  in resume_execution()
299 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in post_kprobe_handler()  local
304 	if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) {  in post_kprobe_handler()
305 		kcb->kprobe_status = KPROBE_HIT_SSDONE;  in post_kprobe_handler()
309 	resume_execution(cur, regs, kcb);  in post_kprobe_handler()
312 	if (kcb->kprobe_status == KPROBE_REENTER) {  in post_kprobe_handler()
313 		restore_previous_kprobe(kcb);  in post_kprobe_handler()
326 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in kprobe_fault_handler()  local
329 	switch(kcb->kprobe_status) {  in kprobe_fault_handler()
340 		regs->tnpc = kcb->kprobe_orig_tnpc;  in kprobe_fault_handler()
342 				kcb->kprobe_orig_tstate_pil);  in kprobe_fault_handler()
343 		if (kcb->kprobe_status == KPROBE_REENTER)  in kprobe_fault_handler()
344 			restore_previous_kprobe(kcb);  in kprobe_fault_handler()
447 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in setjmp_pre_handler()  local
449 	memcpy(&(kcb->jprobe_saved_regs), regs, sizeof(*regs));  in setjmp_pre_handler()
460 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in jprobe_return()  local
463 	orig_fp = kcb->jprobe_saved_regs.u_regs[UREG_FP];  in jprobe_return()
480 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in longjmp_break_handler()  local
483 		memcpy(regs, &(kcb->jprobe_saved_regs), sizeof(*regs));  in longjmp_break_handler()