Fix: Metadata stream leak when received in consumer
[lttng-tools.git] / src / common / lttng-kernel.h
CommitLineData
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 33enum 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
43enum 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,
54773d68 54 LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
7d29a247
DG
55};
56
57/* Perf counter attributes */
58struct lttng_kernel_perf_counter_ctx {
59 uint32_t type;
60 uint64_t config;
dbbb3ec5 61 char name[LTTNG_KERNEL_SYM_NAME_LEN];
7d29a247
DG
62};
63
64/* Event/Channel context */
dbbb3ec5
DG
65#define LTTNG_KERNEL_CONTEXT_PADDING1 16
66#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
7d29a247
DG
67struct lttng_kernel_context {
68 enum lttng_kernel_context_type ctx;
dbbb3ec5
DG
69 char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
70
7d29a247
DG
71 union {
72 struct lttng_kernel_perf_counter_ctx perf_counter;
dbbb3ec5 73 char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
7d29a247 74 } u;
9cb98350
JD
75};
76
8f0d098b
MD
77struct lttng_kernel_kretprobe {
78 uint64_t addr;
79
80 uint64_t offset;
dbbb3ec5 81 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
8f0d098b
MD
82};
83
93128a92 84/*
7d29a247 85 * Either addr is used, or symbol_name and offset.
93128a92 86 */
7d29a247
DG
87struct lttng_kernel_kprobe {
88 uint64_t addr;
89
90 uint64_t offset;
dbbb3ec5 91 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
7d29a247 92};
9cb98350 93
f05b5f07 94/* Function tracer */
7d29a247 95struct lttng_kernel_function {
dbbb3ec5 96 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
93128a92
DG
97};
98
dbbb3ec5
DG
99#define LTTNG_KERNEL_EVENT_PADDING1 16
100#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
9cb98350 101struct lttng_kernel_event {
dbbb3ec5 102 char name[LTTNG_KERNEL_SYM_NAME_LEN];
9cb98350 103 enum lttng_kernel_instrumentation instrumentation;
dbbb3ec5
DG
104 char padding[LTTNG_KERNEL_EVENT_PADDING1];
105
9cb98350
JD
106 /* Per instrumentation type configuration */
107 union {
8f0d098b 108 struct lttng_kernel_kretprobe kretprobe;
7d29a247
DG
109 struct lttng_kernel_kprobe kprobe;
110 struct lttng_kernel_function ftrace;
dbbb3ec5 111 char padding[LTTNG_KERNEL_EVENT_PADDING2];
9cb98350 112 } u;
93128a92
DG
113};
114
9cb98350 115struct lttng_kernel_tracer_version {
a62a6556
MD
116 uint32_t major;
117 uint32_t minor;
9cb98350 118 uint32_t patchlevel;
93128a92
DG
119};
120
d0254c7c
MD
121enum lttng_kernel_calibrate_type {
122 LTTNG_KERNEL_CALIBRATE_KRETPROBE,
123};
124
125struct lttng_kernel_calibrate {
126 enum lttng_kernel_calibrate_type type; /* type (input) */
127};
128
93128a92 129#endif /* _LTTNG_KERNEL_H */
This page took 0.044787 seconds and 5 git commands to generate.