[mirror_ubuntu-eoan-kernel.git] / arch / arc / include / asm / kprobes.h

/*
 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 *
 * 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.
 */

#ifndef _ARC_KPROBES_H
#define _ARC_KPROBES_H

#include <asm-generic/kprobes.h>

#ifdef CONFIG_KPROBES

typedef u16 kprobe_opcode_t;

#define UNIMP_S_INSTRUCTION 0x79e0
#define TRAP_S_2_INSTRUCTION 0x785e

#define MAX_INSN_SIZE   8
#define MAX_STACK_SIZE  64

struct arch_specific_insn {
	int is_short;
	kprobe_opcode_t *t1_addr, *t2_addr;
	kprobe_opcode_t t1_opcode, t2_opcode;
};

#define flush_insn_slot(p)  do {  } while (0)

#define kretprobe_blacklist_size    0

struct kprobe;

void arch_remove_kprobe(struct kprobe *p);

int kprobe_exceptions_notify(struct notifier_block *self,
			     unsigned long val, void *data);

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

struct kprobe_ctlblk {
	unsigned int kprobe_status;
	struct pt_regs jprobe_saved_regs;
	char jprobes_stack[MAX_STACK_SIZE];
	struct prev_kprobe prev_kprobe;
};

int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause);
void kretprobe_trampoline(void);
void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
#else
#define trap_is_kprobe(address, regs)
#endif /* CONFIG_KPROBES */

#endif /* _ARC_KPROBES_H */
Commit	Line	Data
4d86dfbb VG	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
7d134b2c LR	12	#include <asm-generic/kprobes.h>
7d134b2c LR	13
4d86dfbb VG	14	#ifdef CONFIG_KPROBES
	15
	16	typedef 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
	24	struct 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
	34	struct kprobe;
	35
	36	void arch_remove_kprobe(struct kprobe *p);
	37
	38	int kprobe_exceptions_notify(struct notifier_block *self,
	39	unsigned long val, void *data);
	40
	41	struct prev_kprobe {
	42	struct kprobe *kp;
	43	unsigned long status;
	44	};
	45
	46	struct 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
	53	int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause);
	54	void kretprobe_trampoline(void);
38a9ff6d	55	void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
4d86dfbb	56	#else
4c6fabda	57	#define trap_is_kprobe(address, regs)
7d134b2c	58	#endif /* CONFIG_KPROBES */
4d86dfbb	59
7d134b2c	60	#endif /* _ARC_KPROBES_H */