1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copied from arch/arm64/include/asm/kprobes.h
4 *
5 * Copyright (C) 2013 Linaro Limited
6 * Copyright (C) 2017 SiFive
7 */
8
9 #ifndef _ASM_RISCV_KPROBES_H
10 #define _ASM_RISCV_KPROBES_H
11
12 #include <asm-generic/kprobes.h>
13
14 #ifdef CONFIG_KPROBES
15 #include <linux/types.h>
16 #include <linux/ptrace.h>
17 #include <linux/percpu.h>
18
19 #define __ARCH_WANT_KPROBES_INSN_SLOT
20 #define MAX_INSN_SIZE 2
21
22 #define flush_insn_slot(p) do { } while (0)
23 #define kretprobe_blacklist_size 0
24
25 #include <asm/probes.h>
26
27 struct prev_kprobe {
28 struct kprobe *kp;
29 unsigned int status;
30 };
31
32 /* per-cpu kprobe control block */
33 struct kprobe_ctlblk {
34 unsigned int kprobe_status;
35 unsigned long saved_status;
36 struct prev_kprobe prev_kprobe;
37 };
38
39 void arch_remove_kprobe(struct kprobe *p);
40 int kprobe_fault_handler(struct pt_regs *regs, unsigned int trapnr);
41 bool kprobe_breakpoint_handler(struct pt_regs *regs);
42 bool kprobe_single_step_handler(struct pt_regs *regs);
43 #else
44 static inline bool kprobe_breakpoint_handler(struct pt_regs *regs)
45 {
46 return false;
47 }
48
49 static inline bool kprobe_single_step_handler(struct pt_regs *regs)
50 {
51 return false;
52 }
53 #endif /* CONFIG_KPROBES */
54 #endif /* _ASM_RISCV_KPROBES_H */
55
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