Commit | Line | Data |
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b7cdc182 | 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
9f36eaed | 2 | * |
a90917c3 | 3 | * lttng-ring-buffer-client.h |
881833e3 | 4 | * |
881833e3 MD |
5 | * LTTng lib ring buffer client template. |
6 | * | |
886d51a3 | 7 | * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
881833e3 MD |
8 | */ |
9 | ||
10 | #include <linux/module.h> | |
11 | #include <linux/types.h> | |
263b6c88 | 12 | #include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */ |
2df37e95 | 13 | #include <lttng/events.h> |
e8c0bbd3 | 14 | #include <lttng/events-internal.h> |
2df37e95 | 15 | #include <lttng/tracer.h> |
881833e3 | 16 | |
dd5a0db3 MD |
17 | static struct lttng_transport lttng_relay_transport; |
18 | ||
881833e3 MD |
19 | struct metadata_packet_header { |
20 | uint32_t magic; /* 0x75D11D57 */ | |
1ec3f75a | 21 | uint8_t uuid[16]; /* Unique Universal Identifier */ |
881833e3 MD |
22 | uint32_t checksum; /* 0 if unused */ |
23 | uint32_t content_size; /* in bits */ | |
24 | uint32_t packet_size; /* in bits */ | |
25 | uint8_t compression_scheme; /* 0 if unused */ | |
26 | uint8_t encryption_scheme; /* 0 if unused */ | |
27 | uint8_t checksum_scheme; /* 0 if unused */ | |
4173df96 MD |
28 | uint8_t major; /* CTF spec major version number */ |
29 | uint8_t minor; /* CTF spec minor version number */ | |
881833e3 MD |
30 | uint8_t header_end[0]; |
31 | }; | |
32 | ||
33 | struct metadata_record_header { | |
34 | uint8_t header_end[0]; /* End of header */ | |
35 | }; | |
36 | ||
e20c0fec | 37 | static const struct lttng_kernel_ring_buffer_config client_config; |
881833e3 MD |
38 | |
39 | static inline | |
860c213b | 40 | u64 lib_ring_buffer_clock_read(struct lttng_kernel_ring_buffer_channel *chan) |
881833e3 MD |
41 | { |
42 | return 0; | |
43 | } | |
44 | ||
45 | static inline | |
e20c0fec | 46 | size_t record_header_size(const struct lttng_kernel_ring_buffer_config *config, |
860c213b | 47 | struct lttng_kernel_ring_buffer_channel *chan, size_t offset, |
64c796d8 | 48 | size_t *pre_header_padding, |
8a57ec02 | 49 | struct lttng_kernel_ring_buffer_ctx *ctx, |
cc62f29e | 50 | void *client_ctx) |
881833e3 MD |
51 | { |
52 | return 0; | |
53 | } | |
54 | ||
24591303 | 55 | #include <ringbuffer/api.h> |
881833e3 | 56 | |
860c213b | 57 | static u64 client_ring_buffer_clock_read(struct lttng_kernel_ring_buffer_channel *chan) |
881833e3 MD |
58 | { |
59 | return 0; | |
60 | } | |
61 | ||
62 | static | |
e20c0fec | 63 | size_t client_record_header_size(const struct lttng_kernel_ring_buffer_config *config, |
860c213b | 64 | struct lttng_kernel_ring_buffer_channel *chan, size_t offset, |
881833e3 | 65 | size_t *pre_header_padding, |
8a57ec02 | 66 | struct lttng_kernel_ring_buffer_ctx *ctx, |
cc62f29e | 67 | void *client_ctx) |
881833e3 MD |
68 | { |
69 | return 0; | |
70 | } | |
71 | ||
72 | /** | |
73 | * client_packet_header_size - called on buffer-switch to a new sub-buffer | |
74 | * | |
75 | * Return header size without padding after the structure. Don't use packed | |
76 | * structure because gcc generates inefficient code on some architectures | |
77 | * (powerpc, mips..) | |
78 | */ | |
79 | static size_t client_packet_header_size(void) | |
80 | { | |
81 | return offsetof(struct metadata_packet_header, header_end); | |
82 | } | |
83 | ||
3a6d0934 | 84 | static void client_buffer_begin(struct lttng_kernel_ring_buffer *buf, u64 timestamp, |
881833e3 MD |
85 | unsigned int subbuf_idx) |
86 | { | |
860c213b | 87 | struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan; |
881833e3 MD |
88 | struct metadata_packet_header *header = |
89 | (struct metadata_packet_header *) | |
90 | lib_ring_buffer_offset_address(&buf->backend, | |
91 | subbuf_idx * chan->backend.subbuf_size); | |
a36580d5 MD |
92 | struct lttng_metadata_cache *metadata_cache = |
93 | channel_get_private(chan); | |
881833e3 MD |
94 | |
95 | header->magic = TSDL_MAGIC_NUMBER; | |
a36580d5 MD |
96 | memcpy(header->uuid, metadata_cache->uuid.b, |
97 | sizeof(metadata_cache->uuid)); | |
881833e3 MD |
98 | header->checksum = 0; /* 0 if unused */ |
99 | header->content_size = 0xFFFFFFFF; /* in bits, for debugging */ | |
100 | header->packet_size = 0xFFFFFFFF; /* in bits, for debugging */ | |
101 | header->compression_scheme = 0; /* 0 if unused */ | |
102 | header->encryption_scheme = 0; /* 0 if unused */ | |
103 | header->checksum_scheme = 0; /* 0 if unused */ | |
4173df96 MD |
104 | header->major = CTF_SPEC_MAJOR; |
105 | header->minor = CTF_SPEC_MINOR; | |
881833e3 MD |
106 | } |
107 | ||
108 | /* | |
109 | * offset is assumed to never be 0 here : never deliver a completely empty | |
110 | * subbuffer. data_size is between 1 and subbuf_size. | |
111 | */ | |
3a6d0934 | 112 | static void client_buffer_end(struct lttng_kernel_ring_buffer *buf, u64 timestamp, |
b2cf5e0b MD |
113 | unsigned int subbuf_idx, unsigned long data_size, |
114 | const struct lttng_kernel_ring_buffer_ctx *ctx) | |
881833e3 | 115 | { |
860c213b | 116 | struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan; |
d793d5e1 | 117 | struct metadata_packet_header *header = |
1ec3f75a | 118 | (struct metadata_packet_header *) |
881833e3 MD |
119 | lib_ring_buffer_offset_address(&buf->backend, |
120 | subbuf_idx * chan->backend.subbuf_size); | |
121 | unsigned long records_lost = 0; | |
122 | ||
123 | header->content_size = data_size * CHAR_BIT; /* in bits */ | |
124 | header->packet_size = PAGE_ALIGN(data_size) * CHAR_BIT; /* in bits */ | |
71c1d843 MD |
125 | /* |
126 | * We do not care about the records lost count, because the metadata | |
127 | * channel waits and retry. | |
128 | */ | |
b2cf5e0b MD |
129 | (void) lib_ring_buffer_get_records_lost_full(&client_config, ctx); |
130 | records_lost += lib_ring_buffer_get_records_lost_wrap(&client_config, ctx); | |
131 | records_lost += lib_ring_buffer_get_records_lost_big(&client_config, ctx); | |
881833e3 MD |
132 | WARN_ON_ONCE(records_lost != 0); |
133 | } | |
134 | ||
e20c0fec | 135 | static int client_buffer_create(struct lttng_kernel_ring_buffer *buf, void *priv, |
881833e3 MD |
136 | int cpu, const char *name) |
137 | { | |
138 | return 0; | |
139 | } | |
140 | ||
e20c0fec | 141 | static void client_buffer_finalize(struct lttng_kernel_ring_buffer *buf, void *priv, int cpu) |
881833e3 MD |
142 | { |
143 | } | |
144 | ||
e20c0fec MD |
145 | static int client_timestamp_begin(const struct lttng_kernel_ring_buffer_config *config, |
146 | struct lttng_kernel_ring_buffer *buf, uint64_t *timestamp_begin) | |
3b731ab1 JD |
147 | { |
148 | return -ENOSYS; | |
149 | } | |
150 | ||
e20c0fec MD |
151 | static int client_timestamp_end(const struct lttng_kernel_ring_buffer_config *config, |
152 | struct lttng_kernel_ring_buffer *bufb, | |
3b731ab1 JD |
153 | uint64_t *timestamp_end) |
154 | { | |
155 | return -ENOSYS; | |
156 | } | |
157 | ||
e20c0fec MD |
158 | static int client_events_discarded(const struct lttng_kernel_ring_buffer_config *config, |
159 | struct lttng_kernel_ring_buffer *bufb, | |
3b731ab1 JD |
160 | uint64_t *events_discarded) |
161 | { | |
162 | return -ENOSYS; | |
163 | } | |
164 | ||
e20c0fec MD |
165 | static int client_current_timestamp(const struct lttng_kernel_ring_buffer_config *config, |
166 | struct lttng_kernel_ring_buffer *bufb, | |
2348ca17 JD |
167 | uint64_t *ts) |
168 | { | |
169 | return -ENOSYS; | |
170 | } | |
171 | ||
e20c0fec MD |
172 | static int client_content_size(const struct lttng_kernel_ring_buffer_config *config, |
173 | struct lttng_kernel_ring_buffer *bufb, | |
3b731ab1 JD |
174 | uint64_t *content_size) |
175 | { | |
176 | return -ENOSYS; | |
177 | } | |
178 | ||
e20c0fec MD |
179 | static int client_packet_size(const struct lttng_kernel_ring_buffer_config *config, |
180 | struct lttng_kernel_ring_buffer *bufb, | |
3b731ab1 JD |
181 | uint64_t *packet_size) |
182 | { | |
183 | return -ENOSYS; | |
184 | } | |
185 | ||
e20c0fec MD |
186 | static int client_stream_id(const struct lttng_kernel_ring_buffer_config *config, |
187 | struct lttng_kernel_ring_buffer *bufb, | |
3b731ab1 JD |
188 | uint64_t *stream_id) |
189 | { | |
190 | return -ENOSYS; | |
191 | } | |
192 | ||
e20c0fec MD |
193 | static int client_sequence_number(const struct lttng_kernel_ring_buffer_config *config, |
194 | struct lttng_kernel_ring_buffer *bufb, | |
5b3cf4f9 JD |
195 | uint64_t *seq) |
196 | { | |
197 | return -ENOSYS; | |
198 | } | |
199 | ||
5594698f | 200 | static |
e20c0fec MD |
201 | int client_instance_id(const struct lttng_kernel_ring_buffer_config *config, |
202 | struct lttng_kernel_ring_buffer *bufb, | |
5594698f JD |
203 | uint64_t *id) |
204 | { | |
205 | return -ENOSYS; | |
206 | } | |
207 | ||
e20c0fec | 208 | static const struct lttng_kernel_ring_buffer_config client_config = { |
881833e3 MD |
209 | .cb.ring_buffer_clock_read = client_ring_buffer_clock_read, |
210 | .cb.record_header_size = client_record_header_size, | |
211 | .cb.subbuffer_header_size = client_packet_header_size, | |
212 | .cb.buffer_begin = client_buffer_begin, | |
213 | .cb.buffer_end = client_buffer_end, | |
214 | .cb.buffer_create = client_buffer_create, | |
215 | .cb.buffer_finalize = client_buffer_finalize, | |
216 | ||
3a6d0934 | 217 | .timestamp_bits = 0, |
881833e3 MD |
218 | .alloc = RING_BUFFER_ALLOC_GLOBAL, |
219 | .sync = RING_BUFFER_SYNC_GLOBAL, | |
220 | .mode = RING_BUFFER_MODE_TEMPLATE, | |
221 | .backend = RING_BUFFER_PAGE, | |
2db1399a | 222 | .output = RING_BUFFER_OUTPUT_TEMPLATE, |
881833e3 MD |
223 | .oops = RING_BUFFER_OOPS_CONSISTENCY, |
224 | .ipi = RING_BUFFER_IPI_BARRIER, | |
225 | .wakeup = RING_BUFFER_WAKEUP_BY_TIMER, | |
226 | }; | |
227 | ||
dd5a0db3 MD |
228 | static |
229 | void release_priv_ops(void *priv_ops) | |
230 | { | |
231 | module_put(THIS_MODULE); | |
232 | } | |
233 | ||
234 | static | |
860c213b | 235 | void lttng_channel_destroy(struct lttng_kernel_ring_buffer_channel *chan) |
dd5a0db3 MD |
236 | { |
237 | channel_destroy(chan); | |
238 | } | |
239 | ||
881833e3 | 240 | static |
860c213b | 241 | struct lttng_kernel_ring_buffer_channel *_channel_create(const char *name, |
5cf4b87c | 242 | void *priv, void *buf_addr, |
881833e3 MD |
243 | size_t subbuf_size, size_t num_subbuf, |
244 | unsigned int switch_timer_interval, | |
245 | unsigned int read_timer_interval) | |
246 | { | |
f7d06400 | 247 | struct lttng_kernel_channel_buffer *lttng_chan = priv; |
860c213b | 248 | struct lttng_kernel_ring_buffer_channel *chan; |
dd5a0db3 | 249 | |
a36580d5 | 250 | chan = channel_create(&client_config, name, |
f7d06400 | 251 | lttng_chan->parent.session->priv->metadata_cache, buf_addr, |
881833e3 MD |
252 | subbuf_size, num_subbuf, switch_timer_interval, |
253 | read_timer_interval); | |
dd5a0db3 MD |
254 | if (chan) { |
255 | /* | |
256 | * Ensure this module is not unloaded before we finish | |
257 | * using lttng_relay_transport.ops. | |
258 | */ | |
259 | if (!try_module_get(THIS_MODULE)) { | |
5a15f70c | 260 | printk(KERN_WARNING "LTTng: Can't lock transport module.\n"); |
dd5a0db3 MD |
261 | goto error; |
262 | } | |
263 | chan->backend.priv_ops = <tng_relay_transport.ops; | |
264 | chan->backend.release_priv_ops = release_priv_ops; | |
265 | } | |
266 | return chan; | |
881833e3 | 267 | |
dd5a0db3 MD |
268 | error: |
269 | lttng_channel_destroy(chan); | |
270 | return NULL; | |
881833e3 MD |
271 | } |
272 | ||
273 | static | |
e20c0fec | 274 | struct lttng_kernel_ring_buffer *lttng_buffer_read_open(struct lttng_kernel_ring_buffer_channel *chan) |
881833e3 | 275 | { |
e20c0fec | 276 | struct lttng_kernel_ring_buffer *buf; |
881833e3 | 277 | |
cd4bd11f MD |
278 | buf = channel_get_ring_buffer(&client_config, chan, 0); |
279 | if (!lib_ring_buffer_open_read(buf)) | |
280 | return buf; | |
881833e3 MD |
281 | return NULL; |
282 | } | |
283 | ||
f71ecafa | 284 | static |
860c213b | 285 | int lttng_buffer_has_read_closed_stream(struct lttng_kernel_ring_buffer_channel *chan) |
f71ecafa | 286 | { |
e20c0fec | 287 | struct lttng_kernel_ring_buffer *buf; |
f71ecafa MD |
288 | int cpu; |
289 | ||
290 | for_each_channel_cpu(cpu, chan) { | |
291 | buf = channel_get_ring_buffer(&client_config, chan, cpu); | |
292 | if (!atomic_long_read(&buf->active_readers)) | |
293 | return 1; | |
294 | } | |
295 | return 0; | |
296 | } | |
297 | ||
881833e3 | 298 | static |
e20c0fec | 299 | void lttng_buffer_read_close(struct lttng_kernel_ring_buffer *buf) |
881833e3 MD |
300 | { |
301 | lib_ring_buffer_release_read(buf); | |
881833e3 MD |
302 | } |
303 | ||
c099397a | 304 | static |
8a57ec02 | 305 | int lttng_event_reserve(struct lttng_kernel_ring_buffer_ctx *ctx) |
881833e3 | 306 | { |
860c213b | 307 | struct lttng_kernel_ring_buffer_channel *chan = ctx->client_priv; |
85a07c33 MD |
308 | int ret; |
309 | ||
b1199bd3 MD |
310 | memset(&ctx->priv, 0, sizeof(ctx->priv)); |
311 | ctx->priv.chan = chan; | |
312 | ||
cc62f29e | 313 | ret = lib_ring_buffer_reserve(&client_config, ctx, NULL); |
85a07c33 MD |
314 | if (ret) |
315 | return ret; | |
316 | lib_ring_buffer_backend_get_pages(&client_config, ctx, | |
b1199bd3 | 317 | &ctx->priv.backend_pages); |
85a07c33 MD |
318 | return 0; |
319 | ||
881833e3 MD |
320 | } |
321 | ||
c099397a | 322 | static |
8a57ec02 | 323 | void lttng_event_commit(struct lttng_kernel_ring_buffer_ctx *ctx) |
881833e3 MD |
324 | { |
325 | lib_ring_buffer_commit(&client_config, ctx); | |
326 | } | |
327 | ||
c099397a | 328 | static |
8a57ec02 | 329 | void lttng_event_write(struct lttng_kernel_ring_buffer_ctx *ctx, const void *src, |
f5ffbd77 | 330 | size_t len, size_t alignment) |
881833e3 | 331 | { |
f5ffbd77 | 332 | lib_ring_buffer_align_ctx(ctx, alignment); |
881833e3 MD |
333 | lib_ring_buffer_write(&client_config, ctx, src, len); |
334 | } | |
335 | ||
4ea00e4f | 336 | static |
8a57ec02 | 337 | void lttng_event_write_from_user(struct lttng_kernel_ring_buffer_ctx *ctx, |
f5ffbd77 | 338 | const void __user *src, size_t len, size_t alignment) |
4ea00e4f | 339 | { |
f5ffbd77 | 340 | lib_ring_buffer_align_ctx(ctx, alignment); |
7b8ea3a5 | 341 | lib_ring_buffer_copy_from_user_inatomic(&client_config, ctx, src, len); |
4ea00e4f JD |
342 | } |
343 | ||
58aa5d24 | 344 | static |
8a57ec02 | 345 | void lttng_event_memset(struct lttng_kernel_ring_buffer_ctx *ctx, |
58aa5d24 MD |
346 | int c, size_t len) |
347 | { | |
348 | lib_ring_buffer_memset(&client_config, ctx, c, len); | |
349 | } | |
350 | ||
16f78f3a | 351 | static |
8a57ec02 | 352 | void lttng_event_strcpy(struct lttng_kernel_ring_buffer_ctx *ctx, const char *src, |
16f78f3a MD |
353 | size_t len) |
354 | { | |
355 | lib_ring_buffer_strcpy(&client_config, ctx, src, len, '#'); | |
356 | } | |
357 | ||
0d1080f4 MD |
358 | static |
359 | void lttng_event_pstrcpy_pad(struct lttng_kernel_ring_buffer_ctx *ctx, const char *src, | |
360 | size_t len) | |
361 | { | |
362 | lib_ring_buffer_pstrcpy(&client_config, ctx, src, len, '\0'); | |
363 | } | |
364 | ||
1ec3f75a | 365 | static |
860c213b | 366 | size_t lttng_packet_avail_size(struct lttng_kernel_ring_buffer_channel *chan) |
1ec3f75a MD |
367 | { |
368 | unsigned long o_begin; | |
e20c0fec | 369 | struct lttng_kernel_ring_buffer *buf; |
1ec3f75a MD |
370 | |
371 | buf = chan->backend.buf; /* Only for global buffer ! */ | |
372 | o_begin = v_read(&client_config, &buf->offset); | |
373 | if (subbuf_offset(o_begin, chan) != 0) { | |
374 | return chan->backend.subbuf_size - subbuf_offset(o_begin, chan); | |
375 | } else { | |
376 | return chan->backend.subbuf_size - subbuf_offset(o_begin, chan) | |
377 | - sizeof(struct metadata_packet_header); | |
378 | } | |
379 | } | |
380 | ||
c099397a | 381 | static |
860c213b | 382 | wait_queue_head_t *lttng_get_writer_buf_wait_queue(struct lttng_kernel_ring_buffer_channel *chan, int cpu) |
c099397a | 383 | { |
e20c0fec | 384 | struct lttng_kernel_ring_buffer *buf = channel_get_ring_buffer(&client_config, |
71c1d843 MD |
385 | chan, cpu); |
386 | return &buf->write_wait; | |
24cedcfe MD |
387 | } |
388 | ||
389 | static | |
860c213b | 390 | wait_queue_head_t *lttng_get_hp_wait_queue(struct lttng_kernel_ring_buffer_channel *chan) |
24cedcfe MD |
391 | { |
392 | return &chan->hp_wait; | |
393 | } | |
394 | ||
395 | static | |
860c213b | 396 | int lttng_is_finalized(struct lttng_kernel_ring_buffer_channel *chan) |
24cedcfe MD |
397 | { |
398 | return lib_ring_buffer_channel_is_finalized(chan); | |
c099397a MD |
399 | } |
400 | ||
254ec7bc | 401 | static |
860c213b | 402 | int lttng_is_disabled(struct lttng_kernel_ring_buffer_channel *chan) |
254ec7bc MD |
403 | { |
404 | return lib_ring_buffer_channel_is_disabled(chan); | |
405 | } | |
406 | ||
a90917c3 | 407 | static struct lttng_transport lttng_relay_transport = { |
881833e3 MD |
408 | .name = "relay-" RING_BUFFER_MODE_TEMPLATE_STRING, |
409 | .owner = THIS_MODULE, | |
410 | .ops = { | |
4a399b76 MD |
411 | .priv = __LTTNG_COMPOUND_LITERAL(struct lttng_kernel_channel_buffer_ops_private, { |
412 | .pub = <tng_relay_transport.ops, | |
413 | .channel_create = _channel_create, | |
414 | .channel_destroy = lttng_channel_destroy, | |
415 | .buffer_read_open = lttng_buffer_read_open, | |
416 | .buffer_has_read_closed_stream = | |
417 | lttng_buffer_has_read_closed_stream, | |
418 | .buffer_read_close = lttng_buffer_read_close, | |
419 | .packet_avail_size = lttng_packet_avail_size, | |
420 | .get_writer_buf_wait_queue = lttng_get_writer_buf_wait_queue, | |
421 | .get_hp_wait_queue = lttng_get_hp_wait_queue, | |
422 | .is_finalized = lttng_is_finalized, | |
423 | .is_disabled = lttng_is_disabled, | |
424 | .timestamp_begin = client_timestamp_begin, | |
425 | .timestamp_end = client_timestamp_end, | |
426 | .events_discarded = client_events_discarded, | |
427 | .content_size = client_content_size, | |
428 | .packet_size = client_packet_size, | |
429 | .stream_id = client_stream_id, | |
430 | .current_timestamp = client_current_timestamp, | |
431 | .sequence_number = client_sequence_number, | |
432 | .instance_id = client_instance_id, | |
433 | }), | |
a90917c3 MD |
434 | .event_reserve = lttng_event_reserve, |
435 | .event_commit = lttng_event_commit, | |
436 | .event_write_from_user = lttng_event_write_from_user, | |
437 | .event_memset = lttng_event_memset, | |
438 | .event_write = lttng_event_write, | |
16f78f3a | 439 | .event_strcpy = lttng_event_strcpy, |
0d1080f4 | 440 | .event_pstrcpy_pad = lttng_event_pstrcpy_pad, |
881833e3 MD |
441 | }, |
442 | }; | |
443 | ||
a90917c3 | 444 | static int __init lttng_ring_buffer_client_init(void) |
881833e3 MD |
445 | { |
446 | /* | |
447 | * This vmalloc sync all also takes care of the lib ring buffer | |
448 | * vmalloc'd module pages when it is built as a module into LTTng. | |
449 | */ | |
263b6c88 | 450 | wrapper_vmalloc_sync_mappings(); |
a90917c3 | 451 | lttng_transport_register(<tng_relay_transport); |
881833e3 MD |
452 | return 0; |
453 | } | |
454 | ||
a90917c3 | 455 | module_init(lttng_ring_buffer_client_init); |
881833e3 | 456 | |
a90917c3 | 457 | static void __exit lttng_ring_buffer_client_exit(void) |
881833e3 | 458 | { |
a90917c3 | 459 | lttng_transport_unregister(<tng_relay_transport); |
881833e3 MD |
460 | } |
461 | ||
a90917c3 | 462 | module_exit(lttng_ring_buffer_client_exit); |
881833e3 MD |
463 | |
464 | MODULE_LICENSE("GPL and additional rights"); | |
1c124020 | 465 | MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers@efficios.com>"); |
881833e3 MD |
466 | MODULE_DESCRIPTION("LTTng ring buffer " RING_BUFFER_MODE_TEMPLATE_STRING |
467 | " client"); | |
1c124020 MJ |
468 | MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "." |
469 | __stringify(LTTNG_MODULES_MINOR_VERSION) "." | |
470 | __stringify(LTTNG_MODULES_PATCHLEVEL_VERSION) | |
471 | LTTNG_MODULES_EXTRAVERSION); |