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