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2b144498 SD |
1 | #ifndef _ASM_UPROBES_H |
2 | #define _ASM_UPROBES_H | |
3 | /* | |
7b2d81d4 | 4 | * User-space Probes (UProbes) for x86 |
2b144498 SD |
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 | ||
0326f5a9 SD |
26 | #include <linux/notifier.h> |
27 | ||
2b144498 | 28 | typedef u8 uprobe_opcode_t; |
2b144498 | 29 | |
7b2d81d4 | 30 | #define MAX_UINSN_BYTES 16 |
900771a4 | 31 | #define UPROBE_XOL_SLOT_BYTES 128 /* to keep it cache aligned */ |
7b2d81d4 | 32 | |
5cb4ac3a SD |
33 | #define UPROBE_SWBP_INSN 0xcc |
34 | #define UPROBE_SWBP_INSN_SIZE 1 | |
2b144498 | 35 | |
8ad8e9d3 ON |
36 | struct uprobe_xol_ops; |
37 | ||
3ff54efd | 38 | struct arch_uprobe { |
8a8de66c ON |
39 | union { |
40 | u8 insn[MAX_UINSN_BYTES]; | |
41 | u8 ixol[MAX_UINSN_BYTES]; | |
42 | }; | |
8ad8e9d3 | 43 | |
8ad8e9d3 ON |
44 | const struct uprobe_xol_ops *ops; |
45 | ||
7ba6db2d | 46 | union { |
7ba6db2d ON |
47 | struct { |
48 | s32 offs; | |
49 | u8 ilen; | |
8e89c0be | 50 | u8 opc1; |
97aa5cdd ON |
51 | } branch; |
52 | struct { | |
78d9af4c | 53 | u8 fixups; |
1dc76e6e | 54 | u8 ilen; |
5cdb76d6 | 55 | } defparam; |
7ba6db2d | 56 | }; |
2b144498 SD |
57 | }; |
58 | ||
0326f5a9 | 59 | struct arch_uprobe_task { |
0326f5a9 SD |
60 | #ifdef CONFIG_X86_64 |
61 | unsigned long saved_scratch_register; | |
62 | #endif | |
baedbf02 | 63 | unsigned int saved_trap_nr; |
3a4664aa | 64 | unsigned int saved_tf; |
0326f5a9 SD |
65 | }; |
66 | ||
2b144498 | 67 | #endif /* _ASM_UPROBES_H */ |