1/* 2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 9#ifndef _ARC_KPROBES_H 10#define _ARC_KPROBES_H 11 12#include <asm-generic/kprobes.h> 13 14#ifdef CONFIG_KPROBES 15 16typedef u16 kprobe_opcode_t; 17 18#define UNIMP_S_INSTRUCTION 0x79e0 19#define TRAP_S_2_INSTRUCTION 0x785e 20 21#define MAX_INSN_SIZE 8 22#define MAX_STACK_SIZE 64 23 24struct arch_specific_insn { 25 int is_short; 26 kprobe_opcode_t *t1_addr, *t2_addr; 27 kprobe_opcode_t t1_opcode, t2_opcode; 28}; 29 30#define flush_insn_slot(p) do { } while (0) 31 32#define kretprobe_blacklist_size 0 33 34struct kprobe; 35 36void arch_remove_kprobe(struct kprobe *p); 37 38int kprobe_exceptions_notify(struct notifier_block *self, 39 unsigned long val, void *data); 40 41struct prev_kprobe { 42 struct kprobe *kp; 43 unsigned long status; 44}; 45 46struct kprobe_ctlblk { 47 unsigned int kprobe_status; 48 struct pt_regs jprobe_saved_regs; 49 char jprobes_stack[MAX_STACK_SIZE]; 50 struct prev_kprobe prev_kprobe; 51}; 52 53int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause); 54void kretprobe_trampoline(void); 55void trap_is_kprobe(unsigned long address, struct pt_regs *regs); 56#else 57#define trap_is_kprobe(address, regs) 58#endif /* CONFIG_KPROBES */ 59 60#endif /* _ARC_KPROBES_H */ 61