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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 | 23 | #include <stdint.h> |
113373e4 | 24 | #include <common/macros.h> |
0ef03255 FD |
25 | #include <lttng/constant.h> |
26 | #include <lttng/event.h> | |
e848fc76 | 27 | |
dbbb3ec5 | 28 | #define LTTNG_KERNEL_SYM_NAME_LEN 256 |
0ef03255 | 29 | #define LTTNG_KERNEL_MAX_UPROBE_NUM 32 |
8ff4109e | 30 | #define LTTNG_KERNEL_SESSION_NAME_LEN 256 |
e04b2181 | 31 | #define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26 |
9cb98350 | 32 | |
7d29a247 DG |
33 | /* |
34 | * LTTng DebugFS ABI structures. | |
35 | * | |
36 | * This is the kernel ABI copied from lttng-modules tree. | |
37 | */ | |
38 | ||
9cb98350 | 39 | enum lttng_kernel_instrumentation { |
5f822d0a | 40 | LTTNG_KERNEL_ALL = -1, /* Used within lttng-tools */ |
e6ddca71 DG |
41 | LTTNG_KERNEL_TRACEPOINT = 0, |
42 | LTTNG_KERNEL_KPROBE = 1, | |
43 | LTTNG_KERNEL_FUNCTION = 2, | |
8f0d098b | 44 | LTTNG_KERNEL_KRETPROBE = 3, |
0133c199 | 45 | LTTNG_KERNEL_NOOP = 4, /* not hooked */ |
a54bd42d | 46 | LTTNG_KERNEL_SYSCALL = 5, |
1ab8c2ad | 47 | LTTNG_KERNEL_UPROBE = 6, |
e6ddca71 DG |
48 | }; |
49 | ||
7d29a247 DG |
50 | enum lttng_kernel_context_type { |
51 | LTTNG_KERNEL_CONTEXT_PID = 0, | |
aa3514e9 | 52 | LTTNG_KERNEL_CONTEXT_PERF_CPU_COUNTER = 1, |
9197c5c4 | 53 | LTTNG_KERNEL_CONTEXT_PROCNAME = 2, |
7d29a247 DG |
54 | LTTNG_KERNEL_CONTEXT_PRIO = 3, |
55 | LTTNG_KERNEL_CONTEXT_NICE = 4, | |
56 | LTTNG_KERNEL_CONTEXT_VPID = 5, | |
57 | LTTNG_KERNEL_CONTEXT_TID = 6, | |
58 | LTTNG_KERNEL_CONTEXT_VTID = 7, | |
59 | LTTNG_KERNEL_CONTEXT_PPID = 8, | |
60 | LTTNG_KERNEL_CONTEXT_VPPID = 9, | |
54773d68 | 61 | LTTNG_KERNEL_CONTEXT_HOSTNAME = 10, |
33e801a9 | 62 | LTTNG_KERNEL_CONTEXT_CPU_ID = 11, |
1ae5e83e JD |
63 | LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12, |
64 | LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13, | |
65 | LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14, | |
66 | LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15, | |
373148e9 FG |
67 | LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16, |
68 | LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17, | |
40e14884 MJ |
69 | LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18, |
70 | LTTNG_KERNEL_CONTEXT_IPC_NS = 19, | |
71 | LTTNG_KERNEL_CONTEXT_MNT_NS = 20, | |
72 | LTTNG_KERNEL_CONTEXT_NET_NS = 21, | |
73 | LTTNG_KERNEL_CONTEXT_PID_NS = 22, | |
74 | LTTNG_KERNEL_CONTEXT_USER_NS = 23, | |
75 | LTTNG_KERNEL_CONTEXT_UTS_NS = 24, | |
499cbfa1 MJ |
76 | LTTNG_KERNEL_CONTEXT_UID = 25, |
77 | LTTNG_KERNEL_CONTEXT_EUID = 26, | |
78 | LTTNG_KERNEL_CONTEXT_SUID = 27, | |
79 | LTTNG_KERNEL_CONTEXT_GID = 28, | |
80 | LTTNG_KERNEL_CONTEXT_EGID = 29, | |
81 | LTTNG_KERNEL_CONTEXT_SGID = 30, | |
82 | LTTNG_KERNEL_CONTEXT_VUID = 31, | |
83 | LTTNG_KERNEL_CONTEXT_VEUID = 32, | |
84 | LTTNG_KERNEL_CONTEXT_VSUID = 33, | |
85 | LTTNG_KERNEL_CONTEXT_VGID = 34, | |
86 | LTTNG_KERNEL_CONTEXT_VEGID = 35, | |
87 | LTTNG_KERNEL_CONTEXT_VSGID = 36, | |
7d29a247 DG |
88 | }; |
89 | ||
90 | /* Perf counter attributes */ | |
91 | struct lttng_kernel_perf_counter_ctx { | |
92 | uint32_t type; | |
93 | uint64_t config; | |
dbbb3ec5 | 94 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 95 | } LTTNG_PACKED; |
7d29a247 DG |
96 | |
97 | /* Event/Channel context */ | |
dbbb3ec5 DG |
98 | #define LTTNG_KERNEL_CONTEXT_PADDING1 16 |
99 | #define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
7d29a247 DG |
100 | struct lttng_kernel_context { |
101 | enum lttng_kernel_context_type ctx; | |
dbbb3ec5 DG |
102 | char padding[LTTNG_KERNEL_CONTEXT_PADDING1]; |
103 | ||
7d29a247 DG |
104 | union { |
105 | struct lttng_kernel_perf_counter_ctx perf_counter; | |
dbbb3ec5 | 106 | char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; |
7d29a247 | 107 | } u; |
113373e4 | 108 | } LTTNG_PACKED; |
9cb98350 | 109 | |
8f0d098b MD |
110 | struct lttng_kernel_kretprobe { |
111 | uint64_t addr; | |
112 | ||
113 | uint64_t offset; | |
dbbb3ec5 | 114 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 115 | } LTTNG_PACKED; |
8f0d098b | 116 | |
93128a92 | 117 | /* |
7d29a247 | 118 | * Either addr is used, or symbol_name and offset. |
93128a92 | 119 | */ |
7d29a247 DG |
120 | struct lttng_kernel_kprobe { |
121 | uint64_t addr; | |
122 | ||
123 | uint64_t offset; | |
dbbb3ec5 | 124 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 125 | } LTTNG_PACKED; |
9cb98350 | 126 | |
1ab8c2ad FD |
127 | struct lttng_kernel_uprobe { |
128 | int fd; | |
129 | } LTTNG_PACKED; | |
130 | ||
131 | struct lttng_kernel_event_callsite_uprobe { | |
132 | uint64_t offset; | |
133 | } LTTNG_PACKED; | |
134 | ||
135 | struct lttng_kernel_event_callsite { | |
136 | union { | |
137 | struct lttng_kernel_event_callsite_uprobe uprobe; | |
138 | } u; | |
139 | } LTTNG_PACKED; | |
140 | ||
f05b5f07 | 141 | /* Function tracer */ |
7d29a247 | 142 | struct lttng_kernel_function { |
dbbb3ec5 | 143 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 144 | } LTTNG_PACKED; |
93128a92 | 145 | |
dbbb3ec5 DG |
146 | #define LTTNG_KERNEL_EVENT_PADDING1 16 |
147 | #define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
9cb98350 | 148 | struct lttng_kernel_event { |
dbbb3ec5 | 149 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
9cb98350 | 150 | enum lttng_kernel_instrumentation instrumentation; |
dbbb3ec5 DG |
151 | char padding[LTTNG_KERNEL_EVENT_PADDING1]; |
152 | ||
9cb98350 JD |
153 | /* Per instrumentation type configuration */ |
154 | union { | |
8f0d098b | 155 | struct lttng_kernel_kretprobe kretprobe; |
7d29a247 | 156 | struct lttng_kernel_kprobe kprobe; |
1ab8c2ad | 157 | struct lttng_kernel_uprobe uprobe; |
7d29a247 | 158 | struct lttng_kernel_function ftrace; |
dbbb3ec5 | 159 | char padding[LTTNG_KERNEL_EVENT_PADDING2]; |
9cb98350 | 160 | } u; |
113373e4 | 161 | } LTTNG_PACKED; |
93128a92 | 162 | |
9cb98350 | 163 | struct lttng_kernel_tracer_version { |
a62a6556 MD |
164 | uint32_t major; |
165 | uint32_t minor; | |
9cb98350 | 166 | uint32_t patchlevel; |
113373e4 | 167 | } LTTNG_PACKED; |
93128a92 | 168 | |
c052142c MD |
169 | struct lttng_kernel_tracer_abi_version { |
170 | uint32_t major; | |
171 | uint32_t minor; | |
172 | } LTTNG_PACKED; | |
173 | ||
e80c3634 | 174 | struct lttng_kernel_syscall_mask { |
46820c8b | 175 | uint32_t len; /* in bits */ |
e80c3634 MD |
176 | char mask[]; |
177 | } LTTNG_PACKED; | |
178 | ||
4dbc372b JD |
179 | /* |
180 | * kernel channel | |
181 | */ | |
182 | #define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32 | |
183 | struct lttng_kernel_channel { | |
184 | uint64_t subbuf_size; /* bytes */ | |
185 | uint64_t num_subbuf; /* power of 2 */ | |
186 | unsigned int switch_timer_interval; /* usec */ | |
187 | unsigned int read_timer_interval; /* usec */ | |
188 | enum lttng_event_output output; /* splice, mmap */ | |
189 | ||
190 | int overwrite; /* 1: overwrite, 0: discard */ | |
191 | char padding[LTTNG_KERNEL_CHANNEL_PADDING1]; | |
113373e4 | 192 | } LTTNG_PACKED; |
d0254c7c | 193 | |
00a62084 MD |
194 | #define KERNEL_FILTER_BYTECODE_MAX_LEN 65536 |
195 | struct lttng_kernel_filter_bytecode { | |
196 | uint32_t len; | |
197 | uint32_t reloc_offset; | |
198 | uint64_t seqnum; | |
199 | char data[0]; | |
200 | } LTTNG_PACKED; | |
201 | ||
8ff4109e JR |
202 | /* |
203 | * kernel session name | |
204 | */ | |
205 | struct lttng_kernel_session_name { | |
206 | char name[LTTNG_KERNEL_SESSION_NAME_LEN]; | |
207 | } LTTNG_PACKED; | |
208 | ||
e04b2181 JR |
209 | /* |
210 | * kernel session creation datetime | |
211 | */ | |
212 | struct lttng_kernel_session_creation_time { | |
213 | char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN]; | |
214 | } LTTNG_PACKED; | |
215 | ||
93128a92 | 216 | #endif /* _LTTNG_KERNEL_H */ |