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93128a92 DG |
1 | /* |
2 | * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca> | |
3 | * Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
4 | * David Goulet <david.goulet@polymtl.ca> | |
5 | * | |
d14d33bf AM |
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 only, | |
8 | * as published by the Free Software Foundation. | |
93128a92 | 9 | * |
d14d33bf AM |
10 | * This program is distributed in the hope that it will be useful, but WITHOUT |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
93128a92 | 14 | * |
d14d33bf AM |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
93128a92 DG |
18 | */ |
19 | ||
20 | #ifndef _LTTNG_KERNEL_H | |
21 | #define _LTTNG_KERNEL_H | |
22 | ||
e848fc76 DG |
23 | #include <stdint.h> |
24 | ||
dbbb3ec5 | 25 | #define LTTNG_KERNEL_SYM_NAME_LEN 256 |
9cb98350 | 26 | |
7d29a247 DG |
27 | /* |
28 | * LTTng DebugFS ABI structures. | |
29 | * | |
30 | * This is the kernel ABI copied from lttng-modules tree. | |
31 | */ | |
32 | ||
9cb98350 | 33 | enum lttng_kernel_instrumentation { |
5f822d0a | 34 | LTTNG_KERNEL_ALL = -1, /* Used within lttng-tools */ |
e6ddca71 DG |
35 | LTTNG_KERNEL_TRACEPOINT = 0, |
36 | LTTNG_KERNEL_KPROBE = 1, | |
37 | LTTNG_KERNEL_FUNCTION = 2, | |
8f0d098b | 38 | LTTNG_KERNEL_KRETPROBE = 3, |
0133c199 | 39 | LTTNG_KERNEL_NOOP = 4, /* not hooked */ |
a54bd42d | 40 | LTTNG_KERNEL_SYSCALL = 5, |
e6ddca71 DG |
41 | }; |
42 | ||
7d29a247 DG |
43 | enum lttng_kernel_context_type { |
44 | LTTNG_KERNEL_CONTEXT_PID = 0, | |
45 | LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1, | |
9197c5c4 | 46 | LTTNG_KERNEL_CONTEXT_PROCNAME = 2, |
7d29a247 DG |
47 | LTTNG_KERNEL_CONTEXT_PRIO = 3, |
48 | LTTNG_KERNEL_CONTEXT_NICE = 4, | |
49 | LTTNG_KERNEL_CONTEXT_VPID = 5, | |
50 | LTTNG_KERNEL_CONTEXT_TID = 6, | |
51 | LTTNG_KERNEL_CONTEXT_VTID = 7, | |
52 | LTTNG_KERNEL_CONTEXT_PPID = 8, | |
53 | LTTNG_KERNEL_CONTEXT_VPPID = 9, | |
54 | }; | |
55 | ||
56 | /* Perf counter attributes */ | |
57 | struct lttng_kernel_perf_counter_ctx { | |
58 | uint32_t type; | |
59 | uint64_t config; | |
dbbb3ec5 | 60 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
7d29a247 DG |
61 | }; |
62 | ||
63 | /* Event/Channel context */ | |
dbbb3ec5 DG |
64 | #define LTTNG_KERNEL_CONTEXT_PADDING1 16 |
65 | #define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
7d29a247 DG |
66 | struct lttng_kernel_context { |
67 | enum lttng_kernel_context_type ctx; | |
dbbb3ec5 DG |
68 | char padding[LTTNG_KERNEL_CONTEXT_PADDING1]; |
69 | ||
7d29a247 DG |
70 | union { |
71 | struct lttng_kernel_perf_counter_ctx perf_counter; | |
dbbb3ec5 | 72 | char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; |
7d29a247 | 73 | } u; |
9cb98350 JD |
74 | }; |
75 | ||
8f0d098b MD |
76 | struct lttng_kernel_kretprobe { |
77 | uint64_t addr; | |
78 | ||
79 | uint64_t offset; | |
dbbb3ec5 | 80 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
8f0d098b MD |
81 | }; |
82 | ||
93128a92 | 83 | /* |
7d29a247 | 84 | * Either addr is used, or symbol_name and offset. |
93128a92 | 85 | */ |
7d29a247 DG |
86 | struct lttng_kernel_kprobe { |
87 | uint64_t addr; | |
88 | ||
89 | uint64_t offset; | |
dbbb3ec5 | 90 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
7d29a247 | 91 | }; |
9cb98350 | 92 | |
f05b5f07 | 93 | /* Function tracer */ |
7d29a247 | 94 | struct lttng_kernel_function { |
dbbb3ec5 | 95 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
93128a92 DG |
96 | }; |
97 | ||
dbbb3ec5 DG |
98 | #define LTTNG_KERNEL_EVENT_PADDING1 16 |
99 | #define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
9cb98350 | 100 | struct lttng_kernel_event { |
dbbb3ec5 | 101 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
9cb98350 | 102 | enum lttng_kernel_instrumentation instrumentation; |
dbbb3ec5 DG |
103 | char padding[LTTNG_KERNEL_EVENT_PADDING1]; |
104 | ||
9cb98350 JD |
105 | /* Per instrumentation type configuration */ |
106 | union { | |
8f0d098b | 107 | struct lttng_kernel_kretprobe kretprobe; |
7d29a247 DG |
108 | struct lttng_kernel_kprobe kprobe; |
109 | struct lttng_kernel_function ftrace; | |
dbbb3ec5 | 110 | char padding[LTTNG_KERNEL_EVENT_PADDING2]; |
9cb98350 | 111 | } u; |
93128a92 DG |
112 | }; |
113 | ||
9cb98350 | 114 | struct lttng_kernel_tracer_version { |
a62a6556 MD |
115 | uint32_t major; |
116 | uint32_t minor; | |
9cb98350 | 117 | uint32_t patchlevel; |
93128a92 DG |
118 | }; |
119 | ||
d0254c7c MD |
120 | enum lttng_kernel_calibrate_type { |
121 | LTTNG_KERNEL_CALIBRATE_KRETPROBE, | |
122 | }; | |
123 | ||
124 | struct lttng_kernel_calibrate { | |
125 | enum lttng_kernel_calibrate_type type; /* type (input) */ | |
126 | }; | |
127 | ||
93128a92 | 128 | #endif /* _LTTNG_KERNEL_H */ |