LXR linux/arch/mn10300/include/asm/kprobes.h

   1/* MN10300 Kernel Probes support
   2 *
   3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4 * Written by Mark Salter (msalter@redhat.com)
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public Licence as published by
   8 * the Free Software Foundation; either version 2 of the Licence, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public Licence for more details.
  15 *
  16 * You should have received a copy of the GNU General Public Licence
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19 *
  20 */
  21#ifndef _ASM_KPROBES_H
  22#define _ASM_KPROBES_H
  23
  24#include <linux/types.h>
  25#include <linux/ptrace.h>
  26
  27struct kprobe;
  28
  29typedef unsigned char kprobe_opcode_t;
  30#define BREAKPOINT_INSTRUCTION  0xff
  31#define MAX_INSN_SIZE 8
  32#define MAX_STACK_SIZE 128
  33
  34/* Architecture specific copy of original instruction */
  35struct arch_specific_insn {
  36        /*  copy of original instruction
  37         */
  38        kprobe_opcode_t insn[MAX_INSN_SIZE];
  39};
  40
  41extern const int kretprobe_blacklist_size;
  42
  43extern int kprobe_exceptions_notify(struct notifier_block *self,
  44                                    unsigned long val, void *data);
  45
  46#define flush_insn_slot(p)  do {} while (0)
  47
  48extern void arch_remove_kprobe(struct kprobe *p);
  49
  50#endif /* _ASM_KPROBES_H */
  51