arch/arm64/include/asm/kprobes.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * arch/arm64/include/asm/kprobes.h
   4  *
   5  * Copyright (C) 2013 Linaro Limited
   6  */
   7
   8 #ifndef _ARM_KPROBES_H
   9 #define _ARM_KPROBES_H
  10
  11 #include <asm-generic/kprobes.h>
  12
  13 #ifdef CONFIG_KPROBES
  14 #include <linux/types.h>
  15 #include <linux/ptrace.h>
  16 #include <linux/percpu.h>
  17
  18 #define __ARCH_WANT_KPROBES_INSN_SLOT
  19 #define MAX_INSN_SIZE                   1
  20
  21 #define flush_insn_slot(p)              do { } while (0)
  22 #define kretprobe_blacklist_size        0
  23
  24 #include <asm/probes.h>
  25
  26 struct prev_kprobe {
  27         struct kprobe *kp;
  28         unsigned int status;
  29 };
  30
  31 /* Single step context for kprobe */
  32 struct kprobe_step_ctx {
  33         unsigned long ss_pending;
  34         unsigned long match_addr;
  35 };
  36
  37 /* per-cpu kprobe control block */
  38 struct kprobe_ctlblk {
  39         unsigned int kprobe_status;
  40         unsigned long saved_irqflag;
  41         struct prev_kprobe prev_kprobe;
  42         struct kprobe_step_ctx ss_ctx;
  43 };
  44
  45 void arch_remove_kprobe(struct kprobe *);
  46 int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
  47 int kprobe_exceptions_notify(struct notifier_block *self,
  48                              unsigned long val, void *data);
  49 void kretprobe_trampoline(void);
  50 void __kprobes *trampoline_probe_handler(struct pt_regs *regs);
  51
  52 #endif /* CONFIG_KPROBES */
  53 #endif /* _ARM_KPROBES_H */