arch/arm/probes/kprobes/core.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * arch/arm/kernel/kprobes.h
   4  *
   5  * Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>.
   6  *
   7  * Some contents moved here from arch/arm/include/asm/kprobes.h which is
   8  * Copyright (C) 2006, 2007 Motorola Inc.
   9  */
  10
  11 #ifndef _ARM_KERNEL_KPROBES_H
  12 #define _ARM_KERNEL_KPROBES_H
  13
  14 #include <asm/kprobes.h>
  15 #include "../decode.h"
  16
  17 /*
  18  * These undefined instructions must be unique and
  19  * reserved solely for kprobes' use.
  20  */
  21 #define KPROBE_ARM_BREAKPOINT_INSTRUCTION       0x07f001f8
  22 #define KPROBE_THUMB16_BREAKPOINT_INSTRUCTION   0xde18
  23 #define KPROBE_THUMB32_BREAKPOINT_INSTRUCTION   0xf7f0a018
  24
  25 extern void kprobes_remove_breakpoint(void *addr, unsigned int insn);
  26
  27 enum probes_insn __kprobes
  28 kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_probes_insn *asi,
  29                 const struct decode_header *h);
  30
  31 typedef enum probes_insn (kprobe_decode_insn_t)(probes_opcode_t,
  32                                                 struct arch_probes_insn *,
  33                                                 bool,
  34                                                 const union decode_action *,
  35                                                 const struct decode_checker *[]);
  36
  37 #ifdef CONFIG_THUMB2_KERNEL
  38
  39 extern const union decode_action kprobes_t32_actions[];
  40 extern const union decode_action kprobes_t16_actions[];
  41 extern const struct decode_checker *kprobes_t32_checkers[];
  42 extern const struct decode_checker *kprobes_t16_checkers[];
  43 #else /* !CONFIG_THUMB2_KERNEL */
  44
  45 extern const union decode_action kprobes_arm_actions[];
  46 extern const struct decode_checker *kprobes_arm_checkers[];
  47
  48 #endif
  49
  50 #endif /* _ARM_KERNEL_KPROBES_H */