[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / include / asm / kprobes.h

/*
 * arch/arm/include/asm/kprobes.h
 *
 * Copyright (C) 2006, 2007 Motorola Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#ifndef _ARM_KPROBES_H
#define _ARM_KPROBES_H

#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/percpu.h>

#define __ARCH_WANT_KPROBES_INSN_SLOT
#define MAX_INSN_SIZE			2
#define MAX_STACK_SIZE			64	/* 32 would probably be OK */

#define regs_return_value(regs)		((regs)->ARM_r0)
#define flush_insn_slot(p)		do { } while (0)
#define kretprobe_blacklist_size	0

typedef u32 kprobe_opcode_t;

struct kprobe;
typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *);

typedef unsigned long (kprobe_check_cc)(unsigned long);

/* Architecture specific copy of original instruction. */
struct arch_specific_insn {
	kprobe_opcode_t		*insn;
	kprobe_insn_handler_t	*insn_handler;
	kprobe_check_cc		*insn_check_cc;
};

struct prev_kprobe {
	struct kprobe *kp;
	unsigned int status;
};

/* per-cpu kprobe control block */
struct kprobe_ctlblk {
	unsigned int kprobe_status;
	struct prev_kprobe prev_kprobe;
	struct pt_regs jprobe_saved_regs;
	char jprobes_stack[MAX_STACK_SIZE];
};

void arch_remove_kprobe(struct kprobe *);
int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
int kprobe_exceptions_notify(struct notifier_block *self,
			     unsigned long val, void *data);


#endif /* _ARM_KPROBES_H */
Commit	Line	Data
35aa1df4	1	/*
4baa9922	2	* arch/arm/include/asm/kprobes.h
35aa1df4 QB	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>
24ba613c AS	21	#include <linux/percpu.h>
24ba613c AS	22
24ba613c AS	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
35aa1df4 QB	30
	31	typedef u32 kprobe_opcode_t;
	32
	33	struct kprobe;
	34	typedef void (kprobe_insn_handler_t)(struct kprobe , struct pt_regs );
	35
073090cb JM	36	typedef unsigned long (kprobe_check_cc)(unsigned long);
073090cb JM	37
35aa1df4 QB	38	/* Architecture specific copy of original instruction. */
	39	struct arch_specific_insn {
	40	kprobe_opcode_t *insn;
	41	kprobe_insn_handler_t *insn_handler;
073090cb	42	kprobe_check_cc *insn_check_cc;
35aa1df4 QB	43	};
35aa1df4 QB	44
24ba613c AS	45	struct prev_kprobe {
	46	struct kprobe *kp;
	47	unsigned int status;
	48	};
	49
	50	/* per-cpu kprobe control block */
	51	struct kprobe_ctlblk {
	52	unsigned int kprobe_status;
	53	struct prev_kprobe prev_kprobe;
	54	struct pt_regs jprobe_saved_regs;
	55	char jprobes_stack[MAX_STACK_SIZE];
	56	};
	57
	58	void arch_remove_kprobe(struct kprobe *);
24ba613c AS	59	int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
	60	int kprobe_exceptions_notify(struct notifier_block *self,
	61	unsigned long val, void *data);
	62
35aa1df4 QB	63
35aa1df4 QB	64	#endif /* _ARM_KPROBES_H */