summaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/uprobes.h
blob: f7ce310a429d1fff45e88ec98c75870c1986b9d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
#ifndef _ASM_UPROBES_H
#define _ASM_UPROBES_H
/*
 * User-space Probes (UProbes) for x86
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * Copyright (C) IBM Corporation, 2008-2011
 * Authors:
 *	Srikar Dronamraju
 *	Jim Keniston
 */

typedef u8 uprobe_opcode_t;

#define MAX_UINSN_BYTES			  16
#define UPROBES_XOL_SLOT_BYTES		 128	/* to keep it cache aligned */

#define UPROBES_BKPT_INSN		0xcc
#define UPROBES_BKPT_INSN_SIZE		   1

struct arch_uprobe {
	u16				fixups;
	u8				insn[MAX_UINSN_BYTES];
#ifdef CONFIG_X86_64
	unsigned long			rip_rela_target_address;
#endif
};

extern int arch_uprobes_analyze_insn(struct mm_struct *mm, struct arch_uprobe *arch_uprobe);
#endif	/* _ASM_UPROBES_H */