27 int __kprobes arch_prepare_kprobe(struct kprobe *p)  in arch_prepare_kprobe()  argument
31 	if ((unsigned long)p->addr & 0x01) {  in arch_prepare_kprobe()
40 		pr_debug("copy kprobe at %p\n", p->addr);  in arch_prepare_kprobe()
41 		memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));  in arch_prepare_kprobe()
42 		p->opcode = *p->addr;  in arch_prepare_kprobe()
48 void __kprobes arch_arm_kprobe(struct kprobe *p)  in arch_arm_kprobe()  argument
50 	pr_debug("arming kprobe at %p\n", p->addr);  in arch_arm_kprobe()
52 	*p->addr = BREAKPOINT_INSTRUCTION;  in arch_arm_kprobe()
53 	flush_icache_range((unsigned long)p->addr,  in arch_arm_kprobe()
54 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));  in arch_arm_kprobe()
57 void __kprobes arch_disarm_kprobe(struct kprobe *p)  in arch_disarm_kprobe()  argument
59 	pr_debug("disarming kprobe at %p\n", p->addr);  in arch_disarm_kprobe()
61 	*p->addr = p->opcode;  in arch_disarm_kprobe()
62 	flush_icache_range((unsigned long)p->addr,  in arch_disarm_kprobe()
63 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));  in arch_disarm_kprobe()
66 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)  in prepare_singlestep()  argument
71 		 p->addr, regs->pc);  in prepare_singlestep()
85 	*p->addr = p->opcode;  in prepare_singlestep()
86 	flush_icache_range((unsigned long)p->addr,  in prepare_singlestep()
87 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));  in prepare_singlestep()
90 static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)  in resume_execution()  argument
100 	*p->addr = BREAKPOINT_INSTRUCTION;  in resume_execution()
101 	flush_icache_range((unsigned long)p->addr,  in resume_execution()
102 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));  in resume_execution()
105 static void __kprobes set_current_kprobe(struct kprobe *p)  in set_current_kprobe()  argument
107 	__this_cpu_write(current_kprobe, p);  in set_current_kprobe()
112 	struct kprobe *p;  in kprobe_handler()  local
127 		p = get_kprobe(addr);  in kprobe_handler()
128 		if (p) {  in kprobe_handler()
137 			p = kprobe_running();  in kprobe_handler()
138 			if (p->break_handler && p->break_handler(p, regs))  in kprobe_handler()
145 	p = get_kprobe(addr);  in kprobe_handler()
146 	if (!p)  in kprobe_handler()
150 	set_current_kprobe(p);  in kprobe_handler()
151 	if (p->pre_handler && p->pre_handler(p, regs))  in kprobe_handler()
156 	prepare_singlestep(p, regs);  in kprobe_handler()
230 int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)  in setjmp_pre_handler()  argument
232 	struct jprobe *jp = container_of(p, struct jprobe, kp);  in setjmp_pre_handler()
252 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)  in longjmp_break_handler()  argument