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 <linux/types.h>
  20 #include <linux/ptrace.h>
  21 #include <linux/percpu.h>
  22
  23 #define __ARCH_WANT_KPROBES_INSN_SLOT
  24 #define MAX_INSN_SIZE                   1
  25
  26 #define flush_insn_slot(p)              do { } while (0)
  27 #define kretprobe_blacklist_size        0
  28
  29 #include <asm/probes.h>
  30
  31 struct prev_kprobe {
  32         struct kprobe *kp;
  33         unsigned int status;
  34 };
  35
  36 /* Single step context for kprobe */
  37 struct kprobe_step_ctx {
  38         unsigned long ss_pending;
  39         unsigned long match_addr;
  40 };
  41
  42 /* per-cpu kprobe control block */
  43 struct kprobe_ctlblk {
  44         unsigned int kprobe_status;
  45         unsigned long saved_irqflag;
  46         struct prev_kprobe prev_kprobe;
  47         struct kprobe_step_ctx ss_ctx;
  48         struct pt_regs jprobe_saved_regs;
  49 };
  50
  51 void arch_remove_kprobe(struct kprobe *);
  52 int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
  53 int kprobe_exceptions_notify(struct notifier_block *self,
  54                              unsigned long val, void *data);
  55 int kprobe_breakpoint_handler(struct pt_regs *regs, unsigned int esr);
  56 int kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr);
  57 void kretprobe_trampoline(void);
  58 void __kprobes *trampoline_probe_handler(struct pt_regs *regs);
  59
  60 #endif /* _ARM_KPROBES_H */