127 static unsigned find_nextpc(struct pt_regs *regs, int *flags)  in find_nextpc()  argument
138 	pc = (u8 *) regs->pc;  in find_nextpc()
139 	sp = (u8 *) (regs + 1);  in find_nextpc()
150 			if (cond_table[regs->epsw & 0xf] & (1 << (opc & 0xf)))  in find_nextpc()
174 			next = (u8 *)regs->mdr;  in find_nextpc()
195 					next = (u8 *)regs->a0;  in find_nextpc()
198 					next = (u8 *)regs->a1;  in find_nextpc()
201 					next = (u8 *)regs->a2;  in find_nextpc()
204 					next = (u8 *)regs->a3;  in find_nextpc()
229 			    (cond_table[regs->epsw & 0xf] &  in find_nextpc()
272 static unsigned __kprobes singlestep_branch_setup(struct pt_regs *regs)  in singlestep_branch_setup()  argument
277 	pc = (u8 *) regs->pc;  in singlestep_branch_setup()
278 	sp = (u8 *) (regs + 1);  in singlestep_branch_setup()
305 		regs->mdr = (unsigned) next;  in singlestep_branch_setup()
391 void __kprobes disarm_kprobe(struct kprobe *p, struct pt_regs *regs)  in disarm_kprobe()  argument
394 	regs->pc = (unsigned long) p->addr;  in disarm_kprobe()
402 void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)  in prepare_singlestep()  argument
406 	cur_kprobe_orig_pc = regs->pc;  in prepare_singlestep()
408 	regs->pc = (unsigned long) cur_kprobe_ss_buf;  in prepare_singlestep()
410 	nextpc = find_nextpc(regs, &cur_kprobe_ss_flags);  in prepare_singlestep()
412 		cur_kprobe_next_pc = cur_kprobe_orig_pc + (nextpc - regs->pc);  in prepare_singlestep()
418 		nextpc = singlestep_branch_setup(regs);  in prepare_singlestep()
428 static inline int __kprobes kprobe_handler(struct pt_regs *regs)  in kprobe_handler()  argument
432 	unsigned int *addr = (unsigned int *) regs->pc;  in kprobe_handler()
443 			disarm_kprobe(p, regs);  in kprobe_handler()
447 			if (p->break_handler && p->break_handler(p, regs))  in kprobe_handler()
471 	if (p->pre_handler(p, regs)) {  in kprobe_handler()
477 	prepare_singlestep(p, regs);  in kprobe_handler()
494 static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)  in resume_execution()  argument
498 		regs->pc = cur_kprobe_orig_pc;  in resume_execution()
501 			*(unsigned *) regs->sp = regs->mdr = regs->pc + 5;  in resume_execution()
505 			*(unsigned *) regs->sp = regs->mdr = regs->pc + 7;  in resume_execution()
512 				regs->mdr = regs->pc + 2;  in resume_execution()
513 				*(unsigned *) regs->sp = regs->mdr;  in resume_execution()
519 			*(unsigned *) regs->sp = regs->mdr = regs->pc + 4;  in resume_execution()
524 			*(unsigned *) regs->sp = regs->mdr = regs->pc + 6;  in resume_execution()
529 	regs->pc = cur_kprobe_next_pc;  in resume_execution()
533 static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)  in post_kprobe_handler()  argument
539 		cur_kprobe->post_handler(cur_kprobe, regs, 0);  in post_kprobe_handler()
541 	resume_execution(cur_kprobe, regs);  in post_kprobe_handler()
549 int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)  in kprobe_fault_handler()  argument
552 	    cur_kprobe->fault_handler(cur_kprobe, regs, trapnr))  in kprobe_fault_handler()
556 		resume_execution(cur_kprobe, regs);  in kprobe_fault_handler()
573 		if (cur_kprobe_bp_addr != args->regs->pc) {  in kprobe_exceptions_notify()
574 			if (kprobe_handler(args->regs))  in kprobe_exceptions_notify()
577 			if (post_kprobe_handler(args->regs))  in kprobe_exceptions_notify()
583 		    kprobe_fault_handler(args->regs, args->trapnr))  in kprobe_exceptions_notify()
597 int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)  in setjmp_pre_handler()  argument
601 	jprobe_saved_regs_location = regs;  in setjmp_pre_handler()
602 	memcpy(&jprobe_saved_regs, regs, sizeof(struct pt_regs));  in setjmp_pre_handler()
608 	memcpy(&jprobe_saved_stack, regs + 1, sizeof(jprobe_saved_stack));  in setjmp_pre_handler()
611 	regs->pc = (unsigned long) jp->entry;  in setjmp_pre_handler()
629 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)  in longjmp_break_handler()  argument
631 	u8 *addr = (u8 *) regs->pc;  in longjmp_break_handler()
634 		if (jprobe_saved_regs_location != regs) {  in longjmp_break_handler()
638 			       regs, jprobe_saved_regs_location);  in longjmp_break_handler()
644 		memcpy(regs, &jprobe_saved_regs, sizeof(struct pt_regs));  in longjmp_break_handler()
646 		memcpy(regs + 1, &jprobe_saved_stack,  in longjmp_break_handler()