1#ifndef _ASM_UPROBES_H
 2#define _ASM_UPROBES_H
 3/*
 4 * User-space Probes (UProbes) for x86
 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 as published by
 8 * the Free Software Foundation; either version 2 of the License, or
 9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 *
20 * Copyright (C) IBM Corporation, 2008-2011
21 * Authors:
22 *	Srikar Dronamraju
23 *	Jim Keniston
24 */
25
26#include <linux/notifier.h>
27
28typedef u8 uprobe_opcode_t;
29
30#define MAX_UINSN_BYTES			  16
31#define UPROBE_XOL_SLOT_BYTES		 128	/* to keep it cache aligned */
32
33#define UPROBE_SWBP_INSN		0xcc
34#define UPROBE_SWBP_INSN_SIZE		   1
35
36struct uprobe_xol_ops;
37
38struct arch_uprobe {
39	union {
40		u8			insn[MAX_UINSN_BYTES];
41		u8			ixol[MAX_UINSN_BYTES];
42	};
43
44	const struct uprobe_xol_ops	*ops;
45
46	union {
47		struct {
48			s32	offs;
49			u8	ilen;
50			u8	opc1;
51		}			branch;
52		struct {
53			u8	fixups;
54			u8	ilen;
55		} 			defparam;
 
 
 
 
56	};
57};
58
59struct arch_uprobe_task {
60#ifdef CONFIG_X86_64
61	unsigned long			saved_scratch_register;
62#endif
63	unsigned int			saved_trap_nr;
64	unsigned int			saved_tf;
65};
66
67#endif	/* _ASM_UPROBES_H */

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2#ifndef _ASM_UPROBES_H
 3#define _ASM_UPROBES_H
 4/*
 5 * User-space Probes (UProbes) for x86
 6 *
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 7 * Copyright (C) IBM Corporation, 2008-2011
 8 * Authors:
 9 *	Srikar Dronamraju
10 *	Jim Keniston
11 */
12
13#include <linux/notifier.h>
14
15typedef u8 uprobe_opcode_t;
16
17#define MAX_UINSN_BYTES			  16
18#define UPROBE_XOL_SLOT_BYTES		 128	/* to keep it cache aligned */
19
20#define UPROBE_SWBP_INSN		0xcc
21#define UPROBE_SWBP_INSN_SIZE		   1
22
23struct uprobe_xol_ops;
24
25struct arch_uprobe {
26	union {
27		u8			insn[MAX_UINSN_BYTES];
28		u8			ixol[MAX_UINSN_BYTES];
29	};
30
31	const struct uprobe_xol_ops	*ops;
32
33	union {
34		struct {
35			s32	offs;
36			u8	ilen;
37			u8	opc1;
38		}			branch;
39		struct {
40			u8	fixups;
41			u8	ilen;
42		} 			defparam;
43		struct {
44			u8	reg_offset;	/* to the start of pt_regs */
45			u8	ilen;
46		}			push;
47	};
48};
49
50struct arch_uprobe_task {
51#ifdef CONFIG_X86_64
52	unsigned long			saved_scratch_register;
53#endif
54	unsigned int			saved_trap_nr;
55	unsigned int			saved_tf;
56};
57
58#endif	/* _ASM_UPROBES_H */