Commit | Line | Data |
---|---|---|
9f3fdbc6 MD |
1 | #ifndef _LTTNG_UST_ABI_H |
2 | #define _LTTNG_UST_ABI_H | |
3 | ||
4 | /* | |
4318ae1b | 5 | * lttng/ust-abi.h |
9f3fdbc6 | 6 | * |
9f3fdbc6 MD |
7 | * LTTng-UST ABI header |
8 | * | |
e92f3e28 MD |
9 | * Copyright 2010-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
10 | * | |
11 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
12 | * of this software and associated documentation files (the "Software"), to deal | |
13 | * in the Software without restriction, including without limitation the rights | |
14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
15 | * copies of the Software, and to permit persons to whom the Software is | |
16 | * furnished to do so, subject to the following conditions: | |
a60d70e6 | 17 | * |
e92f3e28 MD |
18 | * The above copyright notice and this permission notice shall be included in |
19 | * all copies or substantial portions of the Software. | |
d2428e87 MD |
20 | * |
21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
22 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
23 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
24 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
25 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
26 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
27 | * SOFTWARE. | |
9f3fdbc6 MD |
28 | */ |
29 | ||
0a42beb6 | 30 | #include <stdint.h> |
b3f60bbf | 31 | #include <lttng/ust-compiler.h> |
0a42beb6 | 32 | |
f56cd1d5 | 33 | #define LTTNG_UST_SYM_NAME_LEN 256 |
9f3fdbc6 | 34 | |
0f4eaec3 | 35 | /* Version for comm protocol between sessiond and ust */ |
1332bb04 | 36 | #define LTTNG_UST_COMM_VERSION_MAJOR 2 |
3adfa155 | 37 | #define LTTNG_UST_COMM_VERSION_MINOR 1 |
b35d179d | 38 | |
0f4eaec3 MD |
39 | /* Version for ABI between liblttng-ust, sessiond, consumerd */ |
40 | #define LTTNG_UST_INTERNAL_MAJOR_VERSION 3 | |
41 | #define LTTNG_UST_INTERNAL_MINOR_VERSION 0 | |
42 | #define LTTNG_UST_INTERNAL_PATCHLEVEL_VERSION 0 | |
43 | ||
9f3fdbc6 | 44 | enum lttng_ust_instrumentation { |
df854e41 MD |
45 | LTTNG_UST_TRACEPOINT = 0, |
46 | LTTNG_UST_PROBE = 1, | |
47 | LTTNG_UST_FUNCTION = 2, | |
6b0e60f1 MD |
48 | }; |
49 | ||
50 | enum lttng_ust_loglevel_type { | |
882a56d7 MD |
51 | LTTNG_UST_LOGLEVEL_ALL = 0, |
52 | LTTNG_UST_LOGLEVEL_RANGE = 1, | |
53 | LTTNG_UST_LOGLEVEL_SINGLE = 2, | |
9f3fdbc6 MD |
54 | }; |
55 | ||
9f3fdbc6 | 56 | enum lttng_ust_output { |
b35d179d | 57 | LTTNG_UST_MMAP = 0, |
9f3fdbc6 MD |
58 | }; |
59 | ||
b35d179d | 60 | struct lttng_ust_tracer_version { |
b728d87e MD |
61 | uint32_t major; |
62 | uint32_t minor; | |
b35d179d | 63 | uint32_t patchlevel; |
b3f60bbf | 64 | } LTTNG_PACKED; |
9f3fdbc6 | 65 | |
1332bb04 | 66 | #define LTTNG_UST_CHANNEL_PADDING LTTNG_UST_SYM_NAME_LEN + 32 |
9f3fdbc6 | 67 | struct lttng_ust_channel { |
9f3fdbc6 MD |
68 | uint64_t subbuf_size; /* in bytes */ |
69 | uint64_t num_subbuf; | |
b3f60bbf | 70 | int overwrite; /* 1: overwrite, 0: discard */ |
9f3fdbc6 MD |
71 | unsigned int switch_timer_interval; /* usecs */ |
72 | unsigned int read_timer_interval; /* usecs */ | |
b35d179d | 73 | enum lttng_ust_output output; /* output mode */ |
1332bb04 | 74 | char padding[LTTNG_UST_CHANNEL_PADDING]; |
b3f60bbf | 75 | } LTTNG_PACKED; |
9f3fdbc6 | 76 | |
1332bb04 MD |
77 | #define LTTNG_UST_STREAM_PADDING1 16 |
78 | #define LTTNG_UST_STREAM_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32 | |
381c0f1e | 79 | struct lttng_ust_stream { |
1332bb04 MD |
80 | char padding[LTTNG_UST_STREAM_PADDING1]; |
81 | ||
82 | union { | |
83 | char padding[LTTNG_UST_STREAM_PADDING2]; | |
84 | } u; | |
b3f60bbf | 85 | } LTTNG_PACKED; |
381c0f1e | 86 | |
1332bb04 MD |
87 | #define LTTNG_UST_EVENT_PADDING1 16 |
88 | #define LTTNG_UST_EVENT_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32 | |
9f3fdbc6 | 89 | struct lttng_ust_event { |
9f3fdbc6 | 90 | enum lttng_ust_instrumentation instrumentation; |
6b0e60f1 MD |
91 | char name[LTTNG_UST_SYM_NAME_LEN]; /* event name */ |
92 | ||
93 | enum lttng_ust_loglevel_type loglevel_type; | |
882a56d7 | 94 | int loglevel; /* value, -1: all */ |
1332bb04 | 95 | char padding[LTTNG_UST_EVENT_PADDING1]; |
6b0e60f1 | 96 | |
9f3fdbc6 MD |
97 | /* Per instrumentation type configuration */ |
98 | union { | |
1332bb04 | 99 | char padding[LTTNG_UST_EVENT_PADDING2]; |
9f3fdbc6 | 100 | } u; |
b3f60bbf | 101 | } LTTNG_PACKED; |
9f3fdbc6 | 102 | |
06d4f27e MD |
103 | enum lttng_ust_field_type { |
104 | LTTNG_UST_FIELD_OTHER = 0, | |
105 | LTTNG_UST_FIELD_INTEGER = 1, | |
106 | LTTNG_UST_FIELD_ENUM = 2, | |
107 | LTTNG_UST_FIELD_FLOAT = 3, | |
108 | LTTNG_UST_FIELD_STRING = 4, | |
109 | }; | |
110 | ||
38cb8991 | 111 | #define LTTNG_UST_FIELD_ITER_PADDING LTTNG_UST_SYM_NAME_LEN + 28 |
06d4f27e MD |
112 | struct lttng_ust_field_iter { |
113 | char event_name[LTTNG_UST_SYM_NAME_LEN]; | |
114 | char field_name[LTTNG_UST_SYM_NAME_LEN]; | |
115 | enum lttng_ust_field_type type; | |
116 | int loglevel; /* event loglevel */ | |
180901e6 | 117 | int nowrite; |
06d4f27e | 118 | char padding[LTTNG_UST_FIELD_ITER_PADDING]; |
b3f60bbf | 119 | } LTTNG_PACKED; |
06d4f27e | 120 | |
9f3fdbc6 | 121 | enum lttng_ust_context_type { |
3b402b40 | 122 | LTTNG_UST_CONTEXT_VTID = 0, |
c1ef86f0 MD |
123 | LTTNG_UST_CONTEXT_VPID = 1, |
124 | LTTNG_UST_CONTEXT_PTHREAD_ID = 2, | |
4847e9bb | 125 | LTTNG_UST_CONTEXT_PROCNAME = 3, |
9f3fdbc6 MD |
126 | }; |
127 | ||
1332bb04 MD |
128 | #define LTTNG_UST_CONTEXT_PADDING1 16 |
129 | #define LTTNG_UST_CONTEXT_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32 | |
9f3fdbc6 MD |
130 | struct lttng_ust_context { |
131 | enum lttng_ust_context_type ctx; | |
1332bb04 MD |
132 | char padding[LTTNG_UST_CONTEXT_PADDING1]; |
133 | ||
9f3fdbc6 | 134 | union { |
1332bb04 | 135 | char padding[LTTNG_UST_CONTEXT_PADDING2]; |
9f3fdbc6 | 136 | } u; |
b3f60bbf | 137 | } LTTNG_PACKED; |
9f3fdbc6 | 138 | |
92462b01 MD |
139 | /* |
140 | * Tracer channel attributes. | |
141 | */ | |
1332bb04 | 142 | #define LTTNG_UST_CHANNEL_ATTR_PADDING LTTNG_UST_SYM_NAME_LEN + 32 |
92462b01 | 143 | struct lttng_ust_channel_attr { |
92462b01 MD |
144 | uint64_t subbuf_size; /* bytes */ |
145 | uint64_t num_subbuf; /* power of 2 */ | |
b3f60bbf | 146 | int overwrite; /* 1: overwrite, 0: discard */ |
92462b01 MD |
147 | unsigned int switch_timer_interval; /* usec */ |
148 | unsigned int read_timer_interval; /* usec */ | |
149 | enum lttng_ust_output output; /* splice, mmap */ | |
1332bb04 | 150 | char padding[LTTNG_UST_CHANNEL_ATTR_PADDING]; |
b3f60bbf | 151 | } LTTNG_PACKED; |
92462b01 | 152 | |
1332bb04 | 153 | #define LTTNG_UST_TRACEPOINT_ITER_PADDING 16 |
cbef6901 MD |
154 | struct lttng_ust_tracepoint_iter { |
155 | char name[LTTNG_UST_SYM_NAME_LEN]; /* provider:name */ | |
882a56d7 | 156 | int loglevel; |
1332bb04 | 157 | char padding[LTTNG_UST_TRACEPOINT_ITER_PADDING]; |
b3f60bbf | 158 | } LTTNG_PACKED; |
cbef6901 | 159 | |
1332bb04 | 160 | #define LTTNG_UST_OBJECT_DATA_PADDING LTTNG_UST_SYM_NAME_LEN + 32 |
92462b01 | 161 | struct lttng_ust_object_data { |
b3f60bbf | 162 | uint64_t memory_map_size; |
92462b01 MD |
163 | int handle; |
164 | int shm_fd; | |
165 | int wait_fd; | |
1332bb04 | 166 | char padding[LTTNG_UST_OBJECT_DATA_PADDING]; |
b3f60bbf | 167 | } LTTNG_PACKED; |
92462b01 | 168 | |
d9a9a33b MD |
169 | enum lttng_ust_calibrate_type { |
170 | LTTNG_UST_CALIBRATE_TRACEPOINT, | |
171 | }; | |
172 | ||
1332bb04 MD |
173 | #define LTTNG_UST_CALIBRATE_PADDING1 16 |
174 | #define LTTNG_UST_CALIBRATE_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32 | |
d9a9a33b MD |
175 | struct lttng_ust_calibrate { |
176 | enum lttng_ust_calibrate_type type; /* type (input) */ | |
1332bb04 MD |
177 | char padding[LTTNG_UST_CALIBRATE_PADDING1]; |
178 | ||
179 | union { | |
180 | char padding[LTTNG_UST_CALIBRATE_PADDING2]; | |
181 | } u; | |
b3f60bbf | 182 | } LTTNG_PACKED; |
d9a9a33b | 183 | |
5b4839a8 | 184 | #define FILTER_BYTECODE_MAX_LEN 65536 |
a5930599 | 185 | #define LTTNG_UST_FILTER_PADDING 32 |
2d78951a | 186 | struct lttng_ust_filter_bytecode { |
2734ca65 CB |
187 | uint32_t len; |
188 | uint32_t reloc_offset; | |
3f6fd224 | 189 | uint64_t seqnum; |
a5930599 | 190 | char padding[LTTNG_UST_FILTER_PADDING]; |
2d78951a | 191 | char data[0]; |
b3f60bbf | 192 | } LTTNG_PACKED; |
2d78951a | 193 | |
9f3fdbc6 MD |
194 | #define _UST_CMD(minor) (minor) |
195 | #define _UST_CMDR(minor, type) (minor) | |
196 | #define _UST_CMDW(minor, type) (minor) | |
197 | ||
46050b1a MD |
198 | /* Handled by object descriptor */ |
199 | #define LTTNG_UST_RELEASE _UST_CMD(0x1) | |
200 | ||
201 | /* Handled by object cmd */ | |
202 | ||
9f3fdbc6 MD |
203 | /* LTTng-UST commands */ |
204 | #define LTTNG_UST_SESSION _UST_CMD(0x40) | |
205 | #define LTTNG_UST_TRACER_VERSION \ | |
206 | _UST_CMDR(0x41, struct lttng_ust_tracer_version) | |
207 | #define LTTNG_UST_TRACEPOINT_LIST _UST_CMD(0x42) | |
208 | #define LTTNG_UST_WAIT_QUIESCENT _UST_CMD(0x43) | |
11ff9c7d | 209 | #define LTTNG_UST_REGISTER_DONE _UST_CMD(0x44) |
06d4f27e | 210 | #define LTTNG_UST_TRACEPOINT_FIELD_LIST _UST_CMD(0x45) |
9f3fdbc6 | 211 | |
46050b1a | 212 | /* Session FD commands */ |
9f3fdbc6 MD |
213 | #define LTTNG_UST_METADATA \ |
214 | _UST_CMDW(0x50, struct lttng_ust_channel) | |
215 | #define LTTNG_UST_CHANNEL \ | |
216 | _UST_CMDW(0x51, struct lttng_ust_channel) | |
217 | #define LTTNG_UST_SESSION_START _UST_CMD(0x52) | |
218 | #define LTTNG_UST_SESSION_STOP _UST_CMD(0x53) | |
219 | ||
46050b1a | 220 | /* Channel FD commands */ |
9f3fdbc6 MD |
221 | #define LTTNG_UST_STREAM _UST_CMD(0x60) |
222 | #define LTTNG_UST_EVENT \ | |
223 | _UST_CMDW(0x61, struct lttng_ust_event) | |
224 | ||
46050b1a | 225 | /* Event and Channel FD commands */ |
9f3fdbc6 MD |
226 | #define LTTNG_UST_CONTEXT \ |
227 | _UST_CMDW(0x70, struct lttng_ust_context) | |
43d330a4 | 228 | #define LTTNG_UST_FLUSH_BUFFER \ |
43861eab | 229 | _UST_CMD(0x71) |
9f3fdbc6 | 230 | |
46050b1a | 231 | /* Event, Channel and Session commands */ |
9f3fdbc6 MD |
232 | #define LTTNG_UST_ENABLE _UST_CMD(0x80) |
233 | #define LTTNG_UST_DISABLE _UST_CMD(0x81) | |
234 | ||
51489cad MD |
235 | /* Tracepoint list commands */ |
236 | #define LTTNG_UST_TRACEPOINT_LIST_GET _UST_CMD(0x90) | |
06d4f27e | 237 | #define LTTNG_UST_TRACEPOINT_FIELD_LIST_GET _UST_CMD(0x91) |
51489cad | 238 | |
2d78951a MD |
239 | /* Event FD commands */ |
240 | #define LTTNG_UST_FILTER _UST_CMD(0xA0) | |
241 | ||
46050b1a MD |
242 | #define LTTNG_UST_ROOT_HANDLE 0 |
243 | ||
b61ce3b2 | 244 | struct lttng_ust_obj; |
46050b1a | 245 | |
ef9ff354 MD |
246 | union ust_args { |
247 | struct { | |
248 | int *shm_fd; | |
249 | int *wait_fd; | |
250 | uint64_t *memory_map_size; | |
251 | } channel; | |
252 | struct { | |
253 | int *shm_fd; | |
254 | int *wait_fd; | |
255 | uint64_t *memory_map_size; | |
256 | } stream; | |
40003310 MD |
257 | struct { |
258 | struct lttng_ust_field_iter entry; | |
259 | } field_list; | |
ef9ff354 MD |
260 | }; |
261 | ||
b61ce3b2 | 262 | struct lttng_ust_objd_ops { |
ef9ff354 | 263 | long (*cmd)(int objd, unsigned int cmd, unsigned long arg, |
f59ed768 | 264 | union ust_args *args, void *owner); |
46050b1a MD |
265 | int (*release)(int objd); |
266 | }; | |
267 | ||
268 | /* Create root handle. Always ID 0. */ | |
269 | int lttng_abi_create_root_handle(void); | |
270 | ||
b61ce3b2 | 271 | const struct lttng_ust_objd_ops *objd_ops(int id); |
d4419b81 | 272 | int lttng_ust_objd_unref(int id); |
46050b1a MD |
273 | |
274 | void lttng_ust_abi_exit(void); | |
003fedf4 | 275 | void lttng_ust_events_exit(void); |
f59ed768 | 276 | void lttng_ust_objd_table_owner_cleanup(void *owner); |
b35d179d | 277 | |
9f3fdbc6 | 278 | #endif /* _LTTNG_UST_ABI_H */ |