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
  27 struct kprobe;
  28
  29 typedef 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 */
  35 struct arch_specific_insn {
  36         /*  copy of original instruction
  37          */
  38         kprobe_opcode_t insn[MAX_INSN_SIZE];
  39 };
  40
  41 extern const int kretprobe_blacklist_size;
  42
  43 extern 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
  48 extern void arch_remove_kprobe(struct kprobe *p);
  49
  50 #endif /* _ASM_KPROBES_H */