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 #include "probes.h"
  23
  24 /*
  25  * These undefined instructions must be unique and
  26  * reserved solely for kprobes' use.
  27  */
  28 #define KPROBE_ARM_BREAKPOINT_INSTRUCTION       0x07f001f8
  29 #define KPROBE_THUMB16_BREAKPOINT_INSTRUCTION   0xde18
  30 #define KPROBE_THUMB32_BREAKPOINT_INSTRUCTION   0xf7f0a018
  31
  32 enum probes_insn __kprobes
  33 kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_probes_insn *asi,
  34                 const struct decode_header *h);
  35
  36 typedef enum probes_insn (kprobe_decode_insn_t)(probes_opcode_t,
  37                                                 struct arch_probes_insn *,
  38                                                 bool,
  39                                                 const union decode_action *);
  40
  41 #ifdef CONFIG_THUMB2_KERNEL
  42
  43 extern const union decode_action kprobes_t32_actions[];
  44 extern const union decode_action kprobes_t16_actions[];
  45
  46 #else /* !CONFIG_THUMB2_KERNEL */
  47
  48 extern const union decode_action kprobes_arm_actions[];
  49
  50 #endif
  51
  52 #endif /* _ARM_KERNEL_KPROBES_H */