arch/arm/kernel/kprobes.h

   1 /*
   2  * arch/arm/kernel/kprobes.h
   3  *
   4  * Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>.
   5  *
   6  * Some contents moved here from arch/arm/include/asm/kprobes.h which is
   7  * Copyright (C) 2006, 2007 Motorola Inc.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  */
  18
  19 #ifndef _ARM_KERNEL_KPROBES_H
  20 #define _ARM_KERNEL_KPROBES_H
  21
  22 /*
  23  * These undefined instructions must be unique and
  24  * reserved solely for kprobes' use.
  25  */
  26 #define KPROBE_ARM_BREAKPOINT_INSTRUCTION       0x07f001f8
  27 #define KPROBE_THUMB16_BREAKPOINT_INSTRUCTION   0xde18
  28 #define KPROBE_THUMB32_BREAKPOINT_INSTRUCTION   0xf7f0a018
  29
  30 struct decode_header;
  31 union decode_action;
  32
  33 typedef enum probes_insn (kprobe_decode_insn_t)(probes_opcode_t,
  34                                                 struct arch_specific_insn *,
  35                                                 const union decode_action *);
  36
  37 #ifdef CONFIG_THUMB2_KERNEL
  38
  39 enum probes_insn thumb16_kprobe_decode_insn(probes_opcode_t,
  40                                             struct arch_specific_insn *,
  41                                             const union decode_action *);
  42 enum probes_insn thumb32_kprobe_decode_insn(probes_opcode_t,
  43                                             struct arch_specific_insn *,
  44                                             const union decode_action *);
  45
  46 #else /* !CONFIG_THUMB2_KERNEL */
  47
  48 enum probes_insn arm_kprobe_decode_insn(probes_opcode_t,
  49                                         struct arch_specific_insn *,
  50                                         const union decode_action *);
  51
  52 #endif
  53
  54 #include "probes.h"
  55
  56 #endif /* _ARM_KERNEL_KPROBES_H */