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 */ 51