1/*
 2 * arch/arm/include/asm/kprobes.h
 3 *
 4 * Copyright (C) 2006, 2007 Motorola Inc.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * General Public License for more details.
14 */
15
16#ifndef _ARM_KPROBES_H
17#define _ARM_KPROBES_H
18
19#include <linux/types.h>
20#include <linux/ptrace.h>
21#include <linux/percpu.h>
22
23#define __ARCH_WANT_KPROBES_INSN_SLOT
24#define MAX_INSN_SIZE			2
25#define MAX_STACK_SIZE			64	/* 32 would probably be OK */
26
27#define regs_return_value(regs)		((regs)->ARM_r0)
28#define flush_insn_slot(p)		do { } while (0)
29#define kretprobe_blacklist_size	0
30
31typedef u32 kprobe_opcode_t;
32
33struct kprobe;
34typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *);
35typedef unsigned long (kprobe_check_cc)(unsigned long);
36typedef void (kprobe_insn_singlestep_t)(struct kprobe *, struct pt_regs *);
37typedef void (kprobe_insn_fn_t)(void);
38
39/* Architecture specific copy of original instruction. */
40struct arch_specific_insn {
41	kprobe_opcode_t			*insn;
42	kprobe_insn_handler_t		*insn_handler;
43	kprobe_check_cc			*insn_check_cc;
44	kprobe_insn_singlestep_t	*insn_singlestep;
45	kprobe_insn_fn_t		*insn_fn;
46};
47
48struct prev_kprobe {
49	struct kprobe *kp;
50	unsigned int status;
51};
52
53/* per-cpu kprobe control block */
54struct kprobe_ctlblk {
55	unsigned int kprobe_status;
56	struct prev_kprobe prev_kprobe;
57	struct pt_regs jprobe_saved_regs;
58	char jprobes_stack[MAX_STACK_SIZE];
59};
60
61void arch_remove_kprobe(struct kprobe *);
62int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
63int kprobe_exceptions_notify(struct notifier_block *self,
64			     unsigned long val, void *data);
65
66
67#endif /* _ARM_KPROBES_H */

 1/*
 2 * arch/arm/include/asm/kprobes.h
 3 *
 4 * Copyright (C) 2006, 2007 Motorola Inc.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * General Public License for more details.
14 */
15
16#ifndef _ARM_KPROBES_H
17#define _ARM_KPROBES_H
18
19#include <linux/types.h>
20#include <linux/ptrace.h>
21#include <linux/notifier.h>
22
23#define __ARCH_WANT_KPROBES_INSN_SLOT
24#define MAX_INSN_SIZE			2
25#define MAX_STACK_SIZE			64	/* 32 would probably be OK */
26
 
27#define flush_insn_slot(p)		do { } while (0)
28#define kretprobe_blacklist_size	0
29
30typedef u32 kprobe_opcode_t;
 
31struct kprobe;
32#include <asm/probes.h>
 
 
 
33
34#define	arch_specific_insn	arch_probes_insn
 
 
 
 
 
 
 
35
36struct prev_kprobe {
37	struct kprobe *kp;
38	unsigned int status;
39};
40
41/* per-cpu kprobe control block */
42struct kprobe_ctlblk {
43	unsigned int kprobe_status;
44	struct prev_kprobe prev_kprobe;
45	struct pt_regs jprobe_saved_regs;
46	char jprobes_stack[MAX_STACK_SIZE];
47};
48
49void arch_remove_kprobe(struct kprobe *);
50int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
51int kprobe_exceptions_notify(struct notifier_block *self,
52			     unsigned long val, void *data);
53
54
55#endif /* _ARM_KPROBES_H */