13 static void arch_prepare_ss_slot(struct kprobe *p)  in arch_prepare_ss_slot()  argument
15 	p->ainsn.insn[0] = *p->addr;  in arch_prepare_ss_slot()
16 	p->ainsn.insn[1] = KPROBE_SSTEPBP_INSN;  in arch_prepare_ss_slot()
17 	p->ainsn.restore = (unsigned long)p->addr + LOONGARCH_INSN_SIZE;  in arch_prepare_ss_slot()
21 static void arch_prepare_simulate(struct kprobe *p)  in arch_prepare_simulate()  argument
23 	p->ainsn.restore = 0;  in arch_prepare_simulate()
27 int arch_prepare_kprobe(struct kprobe *p)  in arch_prepare_kprobe()  argument
31 	if ((unsigned long)p->addr & 0x3)  in arch_prepare_kprobe()
35 	p->opcode = *p->addr;  in arch_prepare_kprobe()
36 	insn.word = p->opcode;  in arch_prepare_kprobe()
43 		p->ainsn.insn = NULL;  in arch_prepare_kprobe()
45 		p->ainsn.insn = get_insn_slot();  in arch_prepare_kprobe()
46 		if (!p->ainsn.insn)  in arch_prepare_kprobe()
51 	if (p->ainsn.insn)  in arch_prepare_kprobe()
52 		arch_prepare_ss_slot(p);  in arch_prepare_kprobe()
54 		arch_prepare_simulate(p);  in arch_prepare_kprobe()
61 void arch_arm_kprobe(struct kprobe *p)  in arch_arm_kprobe()  argument
63 	*p->addr = KPROBE_BP_INSN;  in arch_arm_kprobe()
64 	flush_insn_slot(p);  in arch_arm_kprobe()
69 void arch_disarm_kprobe(struct kprobe *p)  in arch_disarm_kprobe()  argument
71 	*p->addr = p->opcode;  in arch_disarm_kprobe()
72 	flush_insn_slot(p);  in arch_disarm_kprobe()
76 void arch_remove_kprobe(struct kprobe *p)  in arch_remove_kprobe()  argument
78 	if (p->ainsn.insn) {  in arch_remove_kprobe()
79 		free_insn_slot(p->ainsn.insn, 0);  in arch_remove_kprobe()
80 		p->ainsn.insn = NULL;  in arch_remove_kprobe()
99 static void set_current_kprobe(struct kprobe *p)  in set_current_kprobe()  argument
101 	__this_cpu_write(current_kprobe, p);  in set_current_kprobe()
155 static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,  in setup_singlestep()  argument
162 		set_current_kprobe(p);  in setup_singlestep()
168 	if (p->ainsn.insn) {  in setup_singlestep()
172 		regs->csr_era = (unsigned long)p->ainsn.insn;  in setup_singlestep()
175 		insn.word = p->opcode;  in setup_singlestep()
178 		post_kprobe_handler(p, kcb, regs);  in setup_singlestep()
183 static bool reenter_kprobe(struct kprobe *p, struct pt_regs *regs,  in reenter_kprobe()  argument
190 		kprobes_inc_nmissed_count(p);  in reenter_kprobe()
191 		setup_singlestep(p, regs, kcb, 1);  in reenter_kprobe()
195 		dump_kprobe(p);  in reenter_kprobe()
210 	struct kprobe *p, *cur_kprobe;  in kprobe_breakpoint_handler()  local
221 	p = get_kprobe(addr);  in kprobe_breakpoint_handler()
222 	if (p) {  in kprobe_breakpoint_handler()
224 			if (reenter_kprobe(p, regs, kcb))  in kprobe_breakpoint_handler()
228 			set_current_kprobe(p);  in kprobe_breakpoint_handler()
241 			if (!p->pre_handler || !p->pre_handler(p, regs)) {  in kprobe_breakpoint_handler()
242 				setup_singlestep(p, regs, kcb, 0);  in kprobe_breakpoint_handler()
334 int arch_trampoline_kprobe(struct kprobe *p)  in arch_trampoline_kprobe()  argument