arch/arm64/include/asm/kprobes.h

   1 /*
   2  * arch/arm64/include/asm/kprobes.h
   3  *
   4  * Copyright (C) 2013 Linaro Limited
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  */
  15
  16 #ifndef _ARM_KPROBES_H
  17 #define _ARM_KPROBES_H
  18
  19 #include <asm-generic/kprobes.h>
  20
  21 #ifdef CONFIG_KPROBES
  22 #include <linux/types.h>
  23 #include <linux/ptrace.h>
  24 #include <linux/percpu.h>
  25
  26 #define __ARCH_WANT_KPROBES_INSN_SLOT
  27 #define MAX_INSN_SIZE                   1
  28
  29 #define flush_insn_slot(p)              do { } while (0)
  30 #define kretprobe_blacklist_size        0
  31
  32 #include <asm/probes.h>
  33
  34 struct prev_kprobe {
  35         struct kprobe *kp;
  36         unsigned int status;
  37 };
  38
  39 /* Single step context for kprobe */
  40 struct kprobe_step_ctx {
  41         unsigned long ss_pending;
  42         unsigned long match_addr;
  43 };
  44
  45 /* per-cpu kprobe control block */
  46 struct kprobe_ctlblk {
  47         unsigned int kprobe_status;
  48         unsigned long saved_irqflag;
  49         struct prev_kprobe prev_kprobe;
  50         struct kprobe_step_ctx ss_ctx;
  51         struct pt_regs jprobe_saved_regs;
  52 };
  53
  54 void arch_remove_kprobe(struct kprobe *);
  55 int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
  56 int kprobe_exceptions_notify(struct notifier_block *self,
  57                              unsigned long val, void *data);
  58 int kprobe_breakpoint_handler(struct pt_regs *regs, unsigned int esr);
  59 int kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr);
  60 void kretprobe_trampoline(void);
  61 void __kprobes *trampoline_probe_handler(struct pt_regs *regs);
  62
  63 #endif /* CONFIG_KPROBES */
  64 #endif /* _ARM_KPROBES_H */