141 int __kprobes arch_prepare_kprobe(struct kprobe *p)  in arch_prepare_kprobe()  argument
147 	insn = p->addr[0];  in arch_prepare_kprobe()
156 	if ((probe_kernel_read(&prev_insn, p->addr - 1,  in arch_prepare_kprobe()
165 	p->ainsn.insn = get_insn_slot();  in arch_prepare_kprobe()
166 	if (!p->ainsn.insn) {  in arch_prepare_kprobe()
185 		memcpy(&p->ainsn.insn[0], p->addr + 1, sizeof(kprobe_opcode_t));  in arch_prepare_kprobe()
187 		memcpy(&p->ainsn.insn[0], p->addr, sizeof(kprobe_opcode_t));  in arch_prepare_kprobe()
189 	p->ainsn.insn[1] = breakpoint2_insn;  in arch_prepare_kprobe()
190 	p->opcode = *p->addr;  in arch_prepare_kprobe()
196 void __kprobes arch_arm_kprobe(struct kprobe *p)  in arch_arm_kprobe()  argument
198 	*p->addr = breakpoint_insn;  in arch_arm_kprobe()
199 	flush_insn_slot(p);  in arch_arm_kprobe()
202 void __kprobes arch_disarm_kprobe(struct kprobe *p)  in arch_disarm_kprobe()  argument
204 	*p->addr = p->opcode;  in arch_disarm_kprobe()
205 	flush_insn_slot(p);  in arch_disarm_kprobe()
208 void __kprobes arch_remove_kprobe(struct kprobe *p)  in arch_remove_kprobe()  argument
210 	if (p->ainsn.insn) {  in arch_remove_kprobe()
211 		free_insn_slot(p->ainsn.insn, 0);  in arch_remove_kprobe()
212 		p->ainsn.insn = NULL;  in arch_remove_kprobe()
234 static void set_current_kprobe(struct kprobe *p, struct pt_regs *regs,  in set_current_kprobe()  argument
237 	__this_cpu_write(current_kprobe, p);  in set_current_kprobe()
255 static int evaluate_branch_instruction(struct kprobe *p, struct pt_regs *regs,  in evaluate_branch_instruction()  argument
258 	union mips_instruction insn = p->opcode;  in evaluate_branch_instruction()
266 	if (p->ainsn.insn->word == 0)  in evaluate_branch_instruction()
289 static void prepare_singlestep(struct kprobe *p, struct pt_regs *regs,  in prepare_singlestep()  argument
297 	if (p->opcode.word == breakpoint_insn.word ||  in prepare_singlestep()
298 	    p->opcode.word == breakpoint2_insn.word)  in prepare_singlestep()
299 		regs->cp0_epc = (unsigned long)p->addr;  in prepare_singlestep()
300 	else if (insn_has_delayslot(p->opcode)) {  in prepare_singlestep()
301 		ret = evaluate_branch_instruction(p, regs, kcb);  in prepare_singlestep()
307 	regs->cp0_epc = (unsigned long)&p->ainsn.insn[0];  in prepare_singlestep()
322 static void __kprobes resume_execution(struct kprobe *p,  in resume_execution()  argument
326 	if (insn_has_delayslot(p->opcode))  in resume_execution()
336 	struct kprobe *p;  in kprobe_handler()  local
352 		p = get_kprobe(addr);  in kprobe_handler()
353 		if (p) {  in kprobe_handler()
355 			    p->ainsn.insn->word == breakpoint_insn.word) {  in kprobe_handler()
368 			set_current_kprobe(p, regs, kcb);  in kprobe_handler()
369 			kprobes_inc_nmissed_count(p);  in kprobe_handler()
370 			prepare_singlestep(p, regs, kcb);  in kprobe_handler()
373 				resume_execution(p, regs, kcb);  in kprobe_handler()
388 			p = __this_cpu_read(current_kprobe);  in kprobe_handler()
389 			if (p->break_handler && p->break_handler(p, regs))  in kprobe_handler()
395 	p = get_kprobe(addr);  in kprobe_handler()
396 	if (!p) {  in kprobe_handler()
411 	set_current_kprobe(p, regs, kcb);  in kprobe_handler()
414 	if (p->pre_handler && p->pre_handler(p, regs)) {  in kprobe_handler()
420 	prepare_singlestep(p, regs, kcb);  in kprobe_handler()
423 		if (p->post_handler)  in kprobe_handler()
424 			p->post_handler(p, regs, 0);  in kprobe_handler()
425 		resume_execution(p, regs, kcb);  in kprobe_handler()
520 int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)  in setjmp_pre_handler()  argument
522 	struct jprobe *jp = container_of(p, struct jprobe, kp);  in setjmp_pre_handler()
549 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)  in longjmp_break_handler()  argument
599 static int __kprobes trampoline_probe_handler(struct kprobe *p,  in trampoline_probe_handler()  argument
663 int __kprobes arch_trampoline_kprobe(struct kprobe *p)  in arch_trampoline_kprobe()  argument
665 	if (p->addr == (kprobe_opcode_t *)kretprobe_trampoline)  in arch_trampoline_kprobe()