run_as: add extract ELF symbol offset command
[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 23#include <stdint.h>
113373e4 24#include <common/macros.h>
e848fc76 25
dbbb3ec5 26#define LTTNG_KERNEL_SYM_NAME_LEN 256
9cb98350 27
7d29a247
DG
28/*
29 * LTTng DebugFS ABI structures.
30 *
31 * This is the kernel ABI copied from lttng-modules tree.
32 */
33
9cb98350 34enum lttng_kernel_instrumentation {
5f822d0a 35 LTTNG_KERNEL_ALL = -1, /* Used within lttng-tools */
e6ddca71
DG
36 LTTNG_KERNEL_TRACEPOINT = 0,
37 LTTNG_KERNEL_KPROBE = 1,
38 LTTNG_KERNEL_FUNCTION = 2,
8f0d098b 39 LTTNG_KERNEL_KRETPROBE = 3,
0133c199 40 LTTNG_KERNEL_NOOP = 4, /* not hooked */
a54bd42d 41 LTTNG_KERNEL_SYSCALL = 5,
e6ddca71
DG
42};
43
7d29a247
DG
44enum lttng_kernel_context_type {
45 LTTNG_KERNEL_CONTEXT_PID = 0,
aa3514e9 46 LTTNG_KERNEL_CONTEXT_PERF_CPU_COUNTER = 1,
9197c5c4 47 LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
7d29a247
DG
48 LTTNG_KERNEL_CONTEXT_PRIO = 3,
49 LTTNG_KERNEL_CONTEXT_NICE = 4,
50 LTTNG_KERNEL_CONTEXT_VPID = 5,
51 LTTNG_KERNEL_CONTEXT_TID = 6,
52 LTTNG_KERNEL_CONTEXT_VTID = 7,
53 LTTNG_KERNEL_CONTEXT_PPID = 8,
54 LTTNG_KERNEL_CONTEXT_VPPID = 9,
54773d68 55 LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
33e801a9 56 LTTNG_KERNEL_CONTEXT_CPU_ID = 11,
1ae5e83e
JD
57 LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12,
58 LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13,
59 LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14,
60 LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15,
373148e9
FG
61 LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16,
62 LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17,
7d29a247
DG
63};
64
65/* Perf counter attributes */
66struct lttng_kernel_perf_counter_ctx {
67 uint32_t type;
68 uint64_t config;
dbbb3ec5 69 char name[LTTNG_KERNEL_SYM_NAME_LEN];
113373e4 70} LTTNG_PACKED;
7d29a247
DG
71
72/* Event/Channel context */
dbbb3ec5
DG
73#define LTTNG_KERNEL_CONTEXT_PADDING1 16
74#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
7d29a247
DG
75struct lttng_kernel_context {
76 enum lttng_kernel_context_type ctx;
dbbb3ec5
DG
77 char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
78
7d29a247
DG
79 union {
80 struct lttng_kernel_perf_counter_ctx perf_counter;
dbbb3ec5 81 char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
7d29a247 82 } u;
113373e4 83} LTTNG_PACKED;
9cb98350 84
8f0d098b
MD
85struct lttng_kernel_kretprobe {
86 uint64_t addr;
87
88 uint64_t offset;
dbbb3ec5 89 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
113373e4 90} LTTNG_PACKED;
8f0d098b 91
93128a92 92/*
7d29a247 93 * Either addr is used, or symbol_name and offset.
93128a92 94 */
7d29a247
DG
95struct lttng_kernel_kprobe {
96 uint64_t addr;
97
98 uint64_t offset;
dbbb3ec5 99 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
113373e4 100} LTTNG_PACKED;
9cb98350 101
f05b5f07 102/* Function tracer */
7d29a247 103struct lttng_kernel_function {
dbbb3ec5 104 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
113373e4 105} LTTNG_PACKED;
93128a92 106
dbbb3ec5
DG
107#define LTTNG_KERNEL_EVENT_PADDING1 16
108#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
9cb98350 109struct lttng_kernel_event {
dbbb3ec5 110 char name[LTTNG_KERNEL_SYM_NAME_LEN];
9cb98350 111 enum lttng_kernel_instrumentation instrumentation;
dbbb3ec5
DG
112 char padding[LTTNG_KERNEL_EVENT_PADDING1];
113
9cb98350
JD
114 /* Per instrumentation type configuration */
115 union {
8f0d098b 116 struct lttng_kernel_kretprobe kretprobe;
7d29a247
DG
117 struct lttng_kernel_kprobe kprobe;
118 struct lttng_kernel_function ftrace;
dbbb3ec5 119 char padding[LTTNG_KERNEL_EVENT_PADDING2];
9cb98350 120 } u;
113373e4 121} LTTNG_PACKED;
93128a92 122
9cb98350 123struct lttng_kernel_tracer_version {
a62a6556
MD
124 uint32_t major;
125 uint32_t minor;
9cb98350 126 uint32_t patchlevel;
113373e4 127} LTTNG_PACKED;
93128a92 128
c052142c
MD
129struct lttng_kernel_tracer_abi_version {
130 uint32_t major;
131 uint32_t minor;
132} LTTNG_PACKED;
133
e80c3634 134struct lttng_kernel_syscall_mask {
46820c8b 135 uint32_t len; /* in bits */
e80c3634
MD
136 char mask[];
137} LTTNG_PACKED;
138
4dbc372b
JD
139/*
140 * kernel channel
141 */
142#define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32
143struct lttng_kernel_channel {
144 uint64_t subbuf_size; /* bytes */
145 uint64_t num_subbuf; /* power of 2 */
146 unsigned int switch_timer_interval; /* usec */
147 unsigned int read_timer_interval; /* usec */
148 enum lttng_event_output output; /* splice, mmap */
149
150 int overwrite; /* 1: overwrite, 0: discard */
151 char padding[LTTNG_KERNEL_CHANNEL_PADDING1];
113373e4 152} LTTNG_PACKED;
d0254c7c 153
00a62084
MD
154#define KERNEL_FILTER_BYTECODE_MAX_LEN 65536
155struct lttng_kernel_filter_bytecode {
156 uint32_t len;
157 uint32_t reloc_offset;
158 uint64_t seqnum;
159 char data[0];
160} LTTNG_PACKED;
161
93128a92 162#endif /* _LTTNG_KERNEL_H */
This page took 0.088213 seconds and 4 git commands to generate.