Commit | Line | Data |
---|---|---|
fc93b2bd MD |
1 | /* |
2 | * BabelTrace - Common Trace Format (CTF) | |
3 | * | |
4 | * Format registration. | |
5 | * | |
64fa3fec MD |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
fc93b2bd | 9 | * |
ccd7e1c8 MD |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
fc93b2bd | 16 | * |
ccd7e1c8 MD |
17 | * The above copyright notice and this permission notice shall be included in |
18 | * all copies or substantial portions of the Software. | |
fc93b2bd MD |
19 | */ |
20 | ||
21 | #include <babeltrace/format.h> | |
22 | #include <babeltrace/ctf/types.h> | |
bbefb8dd | 23 | #include <babeltrace/ctf/metadata.h> |
70bd0a12 | 24 | #include <babeltrace/babeltrace-internal.h> |
e4195791 | 25 | #include <babeltrace/ctf/events-internal.h> |
98a04903 JD |
26 | #include <babeltrace/trace-handle-internal.h> |
27 | #include <babeltrace/context-internal.h> | |
43e34335 MD |
28 | #include <babeltrace/uuid.h> |
29 | #include <babeltrace/endian.h> | |
0f980a35 | 30 | #include <inttypes.h> |
b4c19c1e | 31 | #include <stdio.h> |
0f980a35 | 32 | #include <sys/mman.h> |
bbefb8dd | 33 | #include <errno.h> |
bbefb8dd | 34 | #include <sys/types.h> |
65102a8c | 35 | #include <sys/stat.h> |
bbefb8dd | 36 | #include <fcntl.h> |
65102a8c | 37 | #include <dirent.h> |
bbefb8dd | 38 | #include <glib.h> |
65102a8c MD |
39 | #include <unistd.h> |
40 | #include <stdlib.h> | |
41 | ||
65102a8c MD |
42 | #include "metadata/ctf-scanner.h" |
43 | #include "metadata/ctf-parser.h" | |
44 | #include "metadata/ctf-ast.h" | |
c34ea0fa | 45 | #include "events-private.h" |
f8370579 | 46 | #include "memstream.h" |
65102a8c | 47 | |
0f980a35 MD |
48 | /* |
49 | * We currently simply map a page to read the packet header and packet | |
8c572eba | 50 | * context to get the packet length and content length. (in bits) |
0f980a35 | 51 | */ |
8c572eba MD |
52 | #define MAX_PACKET_HEADER_LEN (getpagesize() * CHAR_BIT) |
53 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) | |
0f980a35 | 54 | |
a0fe7d97 MD |
55 | #ifndef min |
56 | #define min(a, b) (((a) < (b)) ? (a) : (b)) | |
57 | #endif | |
58 | ||
7d97fad9 MD |
59 | #define NSEC_PER_SEC 1000000000ULL |
60 | ||
03798a93 | 61 | int opt_clock_cycles, |
7d97fad9 MD |
62 | opt_clock_seconds, |
63 | opt_clock_date, | |
64 | opt_clock_gmt; | |
65 | ||
66 | uint64_t opt_clock_offset; | |
67 | ||
65102a8c | 68 | extern int yydebug; |
bbefb8dd | 69 | |
e9378815 | 70 | static |
5b80ddfb | 71 | struct trace_descriptor *ctf_open_trace(const char *path, int flags, |
20d0dcf9 MD |
72 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
73 | int whence), | |
74 | FILE *metadata_fp); | |
e9378815 | 75 | static |
f571dfb1 JD |
76 | struct trace_descriptor *ctf_open_mmap_trace( |
77 | struct mmap_stream_list *mmap_list, | |
20d0dcf9 MD |
78 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
79 | int whence), | |
f571dfb1 | 80 | FILE *metadata_fp); |
98a04903 JD |
81 | static |
82 | void ctf_set_context(struct trace_descriptor *descriptor, | |
83 | struct bt_context *ctx); | |
84 | static | |
85 | void ctf_set_handle(struct trace_descriptor *descriptor, | |
86 | struct bt_trace_handle *handle); | |
f571dfb1 JD |
87 | |
88 | static | |
bbefb8dd | 89 | void ctf_close_trace(struct trace_descriptor *descriptor); |
30c276af JD |
90 | static |
91 | uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor, | |
03798a93 | 92 | struct bt_trace_handle *handle, enum bt_clock_type type); |
30c276af JD |
93 | static |
94 | uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor, | |
03798a93 JD |
95 | struct bt_trace_handle *handle, enum bt_clock_type type); |
96 | static | |
97 | int ctf_convert_index_timestamp(struct trace_descriptor *tdp); | |
fc93b2bd | 98 | |
1ae19169 MD |
99 | static |
100 | rw_dispatch read_dispatch_table[] = { | |
d11e9c49 MD |
101 | [ CTF_TYPE_INTEGER ] = ctf_integer_read, |
102 | [ CTF_TYPE_FLOAT ] = ctf_float_read, | |
103 | [ CTF_TYPE_ENUM ] = ctf_enum_read, | |
104 | [ CTF_TYPE_STRING ] = ctf_string_read, | |
105 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
106 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
107 | [ CTF_TYPE_ARRAY ] = ctf_array_read, |
108 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_read, | |
d11e9c49 MD |
109 | }; |
110 | ||
1ae19169 MD |
111 | static |
112 | rw_dispatch write_dispatch_table[] = { | |
d11e9c49 MD |
113 | [ CTF_TYPE_INTEGER ] = ctf_integer_write, |
114 | [ CTF_TYPE_FLOAT ] = ctf_float_write, | |
115 | [ CTF_TYPE_ENUM ] = ctf_enum_write, | |
116 | [ CTF_TYPE_STRING ] = ctf_string_write, | |
117 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
118 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
119 | [ CTF_TYPE_ARRAY ] = ctf_array_write, |
120 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_write, | |
d11e9c49 MD |
121 | }; |
122 | ||
1ae19169 | 123 | static |
d11e9c49 | 124 | struct format ctf_format = { |
bbefb8dd | 125 | .open_trace = ctf_open_trace, |
f571dfb1 | 126 | .open_mmap_trace = ctf_open_mmap_trace, |
bbefb8dd | 127 | .close_trace = ctf_close_trace, |
98a04903 JD |
128 | .set_context = ctf_set_context, |
129 | .set_handle = ctf_set_handle, | |
30c276af JD |
130 | .timestamp_begin = ctf_timestamp_begin, |
131 | .timestamp_end = ctf_timestamp_end, | |
03798a93 | 132 | .convert_index_timestamp = ctf_convert_index_timestamp, |
fc93b2bd MD |
133 | }; |
134 | ||
30c276af JD |
135 | static |
136 | uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor, | |
03798a93 | 137 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
138 | { |
139 | struct ctf_trace *tin; | |
140 | uint64_t begin = ULLONG_MAX; | |
141 | int i, j; | |
142 | ||
143 | tin = container_of(descriptor, struct ctf_trace, parent); | |
144 | ||
145 | if (!tin) | |
146 | goto error; | |
147 | ||
148 | /* for each stream_class */ | |
149 | for (i = 0; i < tin->streams->len; i++) { | |
150 | struct ctf_stream_declaration *stream_class; | |
151 | ||
152 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
153 | if (!stream_class) |
154 | continue; | |
30c276af JD |
155 | /* for each file_stream */ |
156 | for (j = 0; j < stream_class->streams->len; j++) { | |
157 | struct ctf_stream_definition *stream; | |
158 | struct ctf_file_stream *cfs; | |
159 | struct ctf_stream_pos *stream_pos; | |
160 | struct packet_index *index; | |
161 | ||
162 | stream = g_ptr_array_index(stream_class->streams, j); | |
163 | cfs = container_of(stream, struct ctf_file_stream, | |
164 | parent); | |
165 | stream_pos = &cfs->pos; | |
166 | ||
03798a93 JD |
167 | if (!stream_pos->packet_real_index) |
168 | goto error; | |
169 | ||
170 | if (type == BT_CLOCK_REAL) { | |
171 | index = &g_array_index(stream_pos->packet_real_index, | |
172 | struct packet_index, | |
173 | stream_pos->packet_real_index->len - 1); | |
174 | } else if (type == BT_CLOCK_CYCLES) { | |
175 | index = &g_array_index(stream_pos->packet_cycles_index, | |
176 | struct packet_index, | |
177 | stream_pos->packet_real_index->len - 1); | |
178 | ||
179 | } else { | |
180 | goto error; | |
181 | } | |
30c276af JD |
182 | if (index->timestamp_begin < begin) |
183 | begin = index->timestamp_begin; | |
184 | } | |
185 | } | |
186 | ||
187 | return begin; | |
188 | ||
189 | error: | |
190 | return -1ULL; | |
191 | } | |
192 | ||
193 | static | |
194 | uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor, | |
03798a93 | 195 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
196 | { |
197 | struct ctf_trace *tin; | |
198 | uint64_t end = 0; | |
199 | int i, j; | |
200 | ||
201 | tin = container_of(descriptor, struct ctf_trace, parent); | |
202 | ||
203 | if (!tin) | |
204 | goto error; | |
205 | ||
206 | /* for each stream_class */ | |
207 | for (i = 0; i < tin->streams->len; i++) { | |
208 | struct ctf_stream_declaration *stream_class; | |
209 | ||
210 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
211 | if (!stream_class) |
212 | continue; | |
30c276af JD |
213 | /* for each file_stream */ |
214 | for (j = 0; j < stream_class->streams->len; j++) { | |
215 | struct ctf_stream_definition *stream; | |
216 | struct ctf_file_stream *cfs; | |
217 | struct ctf_stream_pos *stream_pos; | |
218 | struct packet_index *index; | |
219 | ||
220 | stream = g_ptr_array_index(stream_class->streams, j); | |
221 | cfs = container_of(stream, struct ctf_file_stream, | |
222 | parent); | |
223 | stream_pos = &cfs->pos; | |
224 | ||
03798a93 JD |
225 | if (!stream_pos->packet_real_index) |
226 | goto error; | |
227 | ||
228 | if (type == BT_CLOCK_REAL) { | |
229 | index = &g_array_index(stream_pos->packet_real_index, | |
230 | struct packet_index, | |
231 | stream_pos->packet_real_index->len - 1); | |
232 | } else if (type == BT_CLOCK_CYCLES) { | |
233 | index = &g_array_index(stream_pos->packet_cycles_index, | |
234 | struct packet_index, | |
235 | stream_pos->packet_real_index->len - 1); | |
236 | ||
237 | } else { | |
238 | goto error; | |
239 | } | |
30c276af JD |
240 | if (index->timestamp_end > end) |
241 | end = index->timestamp_end; | |
242 | } | |
243 | } | |
244 | ||
245 | return end; | |
246 | ||
247 | error: | |
248 | return -1ULL; | |
249 | } | |
250 | ||
25ccc85b | 251 | /* |
03798a93 | 252 | * Update stream current timestamp |
25ccc85b | 253 | */ |
2b9a764d | 254 | static |
9e88d150 | 255 | void ctf_update_timestamp(struct ctf_stream_definition *stream, |
2b9a764d MD |
256 | struct definition_integer *integer_definition) |
257 | { | |
258 | struct declaration_integer *integer_declaration = | |
259 | integer_definition->declaration; | |
260 | uint64_t oldval, newval, updateval; | |
261 | ||
7f3f572b | 262 | if (unlikely(integer_declaration->len == 64)) { |
03798a93 JD |
263 | stream->prev_cycles_timestamp = stream->cycles_timestamp; |
264 | stream->cycles_timestamp = integer_definition->value._unsigned; | |
265 | stream->prev_real_timestamp = ctf_get_real_timestamp(stream, | |
266 | stream->prev_cycles_timestamp); | |
267 | stream->real_timestamp = ctf_get_real_timestamp(stream, | |
268 | stream->cycles_timestamp); | |
2b9a764d MD |
269 | return; |
270 | } | |
271 | /* keep low bits */ | |
03798a93 | 272 | oldval = stream->cycles_timestamp; |
2b9a764d MD |
273 | oldval &= (1ULL << integer_declaration->len) - 1; |
274 | newval = integer_definition->value._unsigned; | |
275 | /* Test for overflow by comparing low bits */ | |
276 | if (newval < oldval) | |
277 | newval += 1ULL << integer_declaration->len; | |
278 | /* updateval contains old high bits, and new low bits (sum) */ | |
03798a93 | 279 | updateval = stream->cycles_timestamp; |
2b9a764d MD |
280 | updateval &= ~((1ULL << integer_declaration->len) - 1); |
281 | updateval += newval; | |
03798a93 JD |
282 | stream->prev_cycles_timestamp = stream->cycles_timestamp; |
283 | stream->cycles_timestamp = updateval; | |
284 | ||
285 | /* convert to real timestamp */ | |
286 | stream->prev_real_timestamp = ctf_get_real_timestamp(stream, | |
287 | stream->prev_cycles_timestamp); | |
288 | stream->real_timestamp = ctf_get_real_timestamp(stream, | |
289 | stream->cycles_timestamp); | |
2b9a764d MD |
290 | } |
291 | ||
25ccc85b MD |
292 | /* |
293 | * Print timestamp, rescaling clock frequency to nanoseconds and | |
294 | * applying offsets as needed (unix time). | |
295 | */ | |
03798a93 | 296 | void ctf_print_timestamp_real(FILE *fp, |
9e88d150 | 297 | struct ctf_stream_definition *stream, |
7d97fad9 MD |
298 | uint64_t timestamp) |
299 | { | |
300 | uint64_t ts_sec = 0, ts_nsec; | |
7d97fad9 | 301 | |
03798a93 | 302 | ts_nsec = timestamp; |
7d97fad9 | 303 | |
c34ea0fa | 304 | /* Add command-line offset */ |
7d97fad9 MD |
305 | ts_sec += opt_clock_offset; |
306 | ||
307 | ts_sec += ts_nsec / NSEC_PER_SEC; | |
308 | ts_nsec = ts_nsec % NSEC_PER_SEC; | |
309 | ||
310 | if (!opt_clock_seconds) { | |
311 | struct tm tm; | |
312 | time_t time_s = (time_t) ts_sec; | |
313 | ||
314 | if (!opt_clock_gmt) { | |
315 | struct tm *res; | |
316 | ||
317 | res = localtime_r(&time_s, &tm); | |
318 | if (!res) { | |
319 | fprintf(stderr, "[warning] Unable to get localtime.\n"); | |
320 | goto seconds; | |
321 | } | |
322 | } else { | |
323 | struct tm *res; | |
324 | ||
325 | res = gmtime_r(&time_s, &tm); | |
326 | if (!res) { | |
327 | fprintf(stderr, "[warning] Unable to get gmtime.\n"); | |
328 | goto seconds; | |
329 | } | |
330 | } | |
331 | if (opt_clock_date) { | |
332 | char timestr[26]; | |
333 | size_t res; | |
334 | ||
335 | /* Print date and time */ | |
336 | res = strftime(timestr, sizeof(timestr), | |
337 | "%F ", &tm); | |
338 | if (!res) { | |
339 | fprintf(stderr, "[warning] Unable to print ascii time.\n"); | |
340 | goto seconds; | |
341 | } | |
342 | fprintf(fp, "%s", timestr); | |
343 | } | |
344 | /* Print time in HH:MM:SS.ns */ | |
345 | fprintf(fp, "%02d:%02d:%02d.%09" PRIu64, | |
346 | tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec); | |
347 | goto end; | |
348 | } | |
349 | seconds: | |
350 | fprintf(fp, "%3" PRIu64 ".%09" PRIu64, | |
351 | ts_sec, ts_nsec); | |
352 | ||
353 | end: | |
354 | return; | |
355 | } | |
356 | ||
03798a93 JD |
357 | /* |
358 | * Print timestamp, in cycles | |
359 | */ | |
360 | void ctf_print_timestamp_cycles(FILE *fp, | |
361 | struct ctf_stream_definition *stream, | |
362 | uint64_t timestamp) | |
363 | { | |
364 | fprintf(fp, "%020" PRIu64, timestamp); | |
365 | } | |
366 | ||
367 | void ctf_print_timestamp(FILE *fp, | |
368 | struct ctf_stream_definition *stream, | |
369 | uint64_t timestamp) | |
370 | { | |
371 | if (opt_clock_cycles) { | |
372 | ctf_print_timestamp_cycles(fp, stream, timestamp); | |
373 | } else { | |
374 | ctf_print_timestamp_real(fp, stream, timestamp); | |
375 | } | |
376 | } | |
377 | ||
31262354 | 378 | static |
9e88d150 | 379 | int ctf_read_event(struct stream_pos *ppos, struct ctf_stream_definition *stream) |
31262354 MD |
380 | { |
381 | struct ctf_stream_pos *pos = | |
382 | container_of(ppos, struct ctf_stream_pos, parent); | |
f380e105 | 383 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 384 | struct ctf_event_definition *event; |
31262354 | 385 | uint64_t id = 0; |
31262354 MD |
386 | int ret; |
387 | ||
3abe83c7 MD |
388 | /* We need to check for EOF here for empty files. */ |
389 | if (unlikely(pos->offset == EOF)) | |
390 | return EOF; | |
391 | ||
5f643ed7 MD |
392 | ctf_pos_get_event(pos); |
393 | ||
90fcbacc JD |
394 | /* save the current position as a restore point */ |
395 | pos->last_offset = pos->offset; | |
90fcbacc | 396 | |
3abe83c7 MD |
397 | /* |
398 | * This is the EOF check after we've advanced the position in | |
399 | * ctf_pos_get_event. | |
400 | */ | |
7f3f572b | 401 | if (unlikely(pos->offset == EOF)) |
31262354 | 402 | return EOF; |
5f643ed7 | 403 | assert(pos->offset < pos->content_size); |
31262354 MD |
404 | |
405 | /* Read event header */ | |
7f3f572b | 406 | if (likely(stream->stream_event_header)) { |
a35173fe | 407 | struct definition_integer *integer_definition; |
ccdb988e | 408 | struct definition *variant; |
a35173fe | 409 | |
e28d4618 | 410 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
7f3f572b | 411 | if (unlikely(ret)) |
31262354 MD |
412 | goto error; |
413 | /* lookup event id */ | |
e28d4618 | 414 | integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
415 | if (integer_definition) { |
416 | id = integer_definition->value._unsigned; | |
417 | } else { | |
418 | struct definition_enum *enum_definition; | |
419 | ||
e28d4618 | 420 | enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
421 | if (enum_definition) { |
422 | id = enum_definition->integer->value._unsigned; | |
423 | } | |
31262354 | 424 | } |
764af3f4 | 425 | |
e28d4618 | 426 | variant = lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e MD |
427 | if (variant) { |
428 | integer_definition = lookup_integer(variant, "id", FALSE); | |
429 | if (integer_definition) { | |
430 | id = integer_definition->value._unsigned; | |
431 | } | |
432 | } | |
c87a8eb2 | 433 | stream->event_id = id; |
ccdb988e | 434 | |
764af3f4 | 435 | /* lookup timestamp */ |
5e2eb0ae | 436 | stream->has_timestamp = 0; |
e28d4618 | 437 | integer_definition = lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 438 | if (integer_definition) { |
2b9a764d | 439 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 440 | stream->has_timestamp = 1; |
a35173fe | 441 | } else { |
ccdb988e MD |
442 | if (variant) { |
443 | integer_definition = lookup_integer(variant, "timestamp", FALSE); | |
a35173fe | 444 | if (integer_definition) { |
2b9a764d | 445 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 446 | stream->has_timestamp = 1; |
a35173fe MD |
447 | } |
448 | } | |
764af3f4 | 449 | } |
31262354 MD |
450 | } |
451 | ||
452 | /* Read stream-declared event context */ | |
e28d4618 MD |
453 | if (stream->stream_event_context) { |
454 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
455 | if (ret) |
456 | goto error; | |
457 | } | |
458 | ||
7f3f572b | 459 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 460 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
461 | return -EINVAL; |
462 | } | |
e28d4618 | 463 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 464 | if (unlikely(!event)) { |
3394d22e | 465 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
466 | return -EINVAL; |
467 | } | |
468 | ||
469 | /* Read event-declared event context */ | |
e28d4618 MD |
470 | if (event->event_context) { |
471 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
472 | if (ret) |
473 | goto error; | |
474 | } | |
475 | ||
476 | /* Read event payload */ | |
7f3f572b | 477 | if (likely(event->event_fields)) { |
e28d4618 | 478 | ret = generic_rw(ppos, &event->event_fields->p); |
31262354 MD |
479 | if (ret) |
480 | goto error; | |
481 | } | |
482 | ||
483 | return 0; | |
484 | ||
485 | error: | |
3394d22e | 486 | fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); |
31262354 MD |
487 | return ret; |
488 | } | |
489 | ||
490 | static | |
9e88d150 | 491 | int ctf_write_event(struct stream_pos *pos, struct ctf_stream_definition *stream) |
31262354 | 492 | { |
f380e105 | 493 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 494 | struct ctf_event_definition *event; |
c87a8eb2 | 495 | uint64_t id; |
31262354 MD |
496 | int ret; |
497 | ||
c87a8eb2 MD |
498 | id = stream->event_id; |
499 | ||
31262354 | 500 | /* print event header */ |
7f3f572b | 501 | if (likely(stream->stream_event_header)) { |
e28d4618 | 502 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
503 | if (ret) |
504 | goto error; | |
505 | } | |
506 | ||
507 | /* print stream-declared event context */ | |
e28d4618 MD |
508 | if (stream->stream_event_context) { |
509 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
510 | if (ret) |
511 | goto error; | |
512 | } | |
513 | ||
7f3f572b | 514 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 515 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
516 | return -EINVAL; |
517 | } | |
e28d4618 | 518 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 519 | if (unlikely(!event)) { |
3394d22e | 520 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
521 | return -EINVAL; |
522 | } | |
523 | ||
524 | /* print event-declared event context */ | |
e28d4618 MD |
525 | if (event->event_context) { |
526 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
527 | if (ret) |
528 | goto error; | |
529 | } | |
530 | ||
531 | /* Read and print event payload */ | |
7f3f572b | 532 | if (likely(event->event_fields)) { |
e28d4618 | 533 | ret = generic_rw(pos, &event->event_fields->p); |
31262354 MD |
534 | if (ret) |
535 | goto error; | |
536 | } | |
537 | ||
538 | return 0; | |
539 | ||
540 | error: | |
3394d22e | 541 | fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); |
31262354 MD |
542 | return ret; |
543 | } | |
544 | ||
8563e754 | 545 | void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags) |
8c572eba MD |
546 | { |
547 | pos->fd = fd; | |
548 | pos->mmap_offset = 0; | |
549 | pos->packet_size = 0; | |
550 | pos->content_size = 0; | |
551 | pos->content_size_loc = NULL; | |
aee35fcc | 552 | pos->base_mma = NULL; |
8c572eba MD |
553 | pos->offset = 0; |
554 | pos->dummy = false; | |
8c572eba | 555 | pos->cur_index = 0; |
03798a93 | 556 | pos->packet_real_index = NULL; |
8563e754 | 557 | if (fd >= 0) |
03798a93 | 558 | pos->packet_cycles_index = g_array_new(FALSE, TRUE, |
8563e754 MD |
559 | sizeof(struct packet_index)); |
560 | else | |
03798a93 | 561 | pos->packet_cycles_index = NULL; |
8563e754 MD |
562 | switch (open_flags & O_ACCMODE) { |
563 | case O_RDONLY: | |
564 | pos->prot = PROT_READ; | |
565 | pos->flags = MAP_PRIVATE; | |
566 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 567 | pos->parent.event_cb = ctf_read_event; |
8563e754 | 568 | break; |
8563e754 MD |
569 | case O_RDWR: |
570 | pos->prot = PROT_WRITE; /* Write has priority */ | |
571 | pos->flags = MAP_SHARED; | |
572 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 573 | pos->parent.event_cb = ctf_write_event; |
8563e754 | 574 | if (fd >= 0) |
06789ffd | 575 | ctf_packet_seek(&pos->parent, 0, SEEK_SET); /* position for write */ |
8563e754 MD |
576 | break; |
577 | default: | |
578 | assert(0); | |
8c572eba MD |
579 | } |
580 | } | |
581 | ||
46322b33 | 582 | void ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba MD |
583 | { |
584 | int ret; | |
585 | ||
586 | if (pos->prot == PROT_WRITE && pos->content_size_loc) | |
587 | *pos->content_size_loc = pos->offset; | |
aee35fcc | 588 | if (pos->base_mma) { |
8c572eba | 589 | /* unmap old base */ |
aee35fcc | 590 | ret = munmap_align(pos->base_mma); |
8c572eba | 591 | if (ret) { |
3394d22e | 592 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
8c572eba MD |
593 | strerror(errno)); |
594 | assert(0); | |
595 | } | |
596 | } | |
03798a93 JD |
597 | (void) g_array_free(pos->packet_cycles_index, TRUE); |
598 | (void) g_array_free(pos->packet_real_index, TRUE); | |
8c572eba MD |
599 | } |
600 | ||
20d0dcf9 MD |
601 | /* |
602 | * for SEEK_CUR: go to next packet. | |
603 | * for SEEK_POS: go to packet numer (index). | |
604 | */ | |
605 | void ctf_packet_seek(struct stream_pos *stream_pos, size_t index, int whence) | |
0f980a35 | 606 | { |
d6425aaf MD |
607 | struct ctf_stream_pos *pos = |
608 | container_of(stream_pos, struct ctf_stream_pos, parent); | |
75cc2c35 MD |
609 | struct ctf_file_stream *file_stream = |
610 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 611 | int ret; |
8c572eba | 612 | off_t off; |
20d0dcf9 | 613 | struct packet_index *packet_index; |
0f980a35 | 614 | |
8c572eba MD |
615 | if (pos->prot == PROT_WRITE && pos->content_size_loc) |
616 | *pos->content_size_loc = pos->offset; | |
0f980a35 | 617 | |
aee35fcc | 618 | if (pos->base_mma) { |
0f980a35 | 619 | /* unmap old base */ |
aee35fcc | 620 | ret = munmap_align(pos->base_mma); |
0f980a35 | 621 | if (ret) { |
3394d22e | 622 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
623 | strerror(errno)); |
624 | assert(0); | |
625 | } | |
aee35fcc | 626 | pos->base_mma = NULL; |
0f980a35 MD |
627 | } |
628 | ||
8c572eba | 629 | /* |
46322b33 | 630 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
631 | * except to get exactly at the beginning of the next packet. |
632 | */ | |
633 | if (pos->prot == PROT_WRITE) { | |
989c73bc MD |
634 | switch (whence) { |
635 | case SEEK_CUR: | |
636 | /* The writer will add padding */ | |
8c572eba | 637 | pos->mmap_offset += WRITE_PACKET_LEN / CHAR_BIT; |
989c73bc MD |
638 | break; |
639 | case SEEK_SET: | |
20d0dcf9 | 640 | assert(index == 0); /* only seek supported for now */ |
989c73bc MD |
641 | pos->cur_index = 0; |
642 | break; | |
643 | default: | |
644 | assert(0); | |
645 | } | |
8c572eba MD |
646 | pos->content_size = -1U; /* Unknown at this point */ |
647 | pos->packet_size = WRITE_PACKET_LEN; | |
989c73bc MD |
648 | off = posix_fallocate(pos->fd, pos->mmap_offset, |
649 | pos->packet_size / CHAR_BIT); | |
8c572eba | 650 | assert(off >= 0); |
847bf71a | 651 | pos->offset = 0; |
8c572eba | 652 | } else { |
5f643ed7 | 653 | read_next_packet: |
847bf71a MD |
654 | switch (whence) { |
655 | case SEEK_CUR: | |
41e82e00 | 656 | { |
4c4ba021 | 657 | uint64_t events_discarded_diff; |
41e82e00 | 658 | |
7d97fad9 MD |
659 | if (pos->offset == EOF) { |
660 | return; | |
661 | } | |
3217ac37 | 662 | /* For printing discarded event count */ |
03798a93 | 663 | packet_index = &g_array_index(pos->packet_cycles_index, |
41e82e00 | 664 | struct packet_index, pos->cur_index); |
03798a93 JD |
665 | file_stream->parent.prev_cycles_timestamp_end = |
666 | packet_index->timestamp_end; | |
667 | file_stream->parent.prev_cycles_timestamp = | |
668 | packet_index->timestamp_begin; | |
669 | ||
670 | packet_index = &g_array_index(pos->packet_real_index, | |
671 | struct packet_index, pos->cur_index); | |
672 | file_stream->parent.prev_real_timestamp_end = | |
20d0dcf9 | 673 | packet_index->timestamp_end; |
03798a93 JD |
674 | file_stream->parent.prev_real_timestamp = |
675 | packet_index->timestamp_begin; | |
676 | ||
677 | events_discarded_diff = packet_index->events_discarded; | |
41e82e00 | 678 | if (pos->cur_index > 0) { |
03798a93 | 679 | packet_index = &g_array_index(pos->packet_real_index, |
41e82e00 MD |
680 | struct packet_index, |
681 | pos->cur_index - 1); | |
20d0dcf9 | 682 | events_discarded_diff -= packet_index->events_discarded; |
4c4ba021 MD |
683 | /* |
684 | * Deal with 32-bit wrap-around if the | |
685 | * tracer provided a 32-bit field. | |
686 | */ | |
687 | if (packet_index->events_discarded_len == 32) { | |
688 | events_discarded_diff = (uint32_t) events_discarded_diff; | |
689 | } | |
41e82e00 | 690 | } |
fca04958 | 691 | file_stream->parent.events_discarded = events_discarded_diff; |
03798a93 JD |
692 | file_stream->parent.prev_real_timestamp = file_stream->parent.real_timestamp; |
693 | file_stream->parent.prev_cycles_timestamp = file_stream->parent.cycles_timestamp; | |
847bf71a | 694 | /* The reader will expect us to skip padding */ |
8c572eba | 695 | ++pos->cur_index; |
847bf71a | 696 | break; |
41e82e00 | 697 | } |
847bf71a | 698 | case SEEK_SET: |
20d0dcf9 | 699 | pos->cur_index = index; |
03798a93 JD |
700 | file_stream->parent.prev_real_timestamp = 0; |
701 | file_stream->parent.prev_real_timestamp_end = 0; | |
702 | file_stream->parent.prev_cycles_timestamp = 0; | |
703 | file_stream->parent.prev_cycles_timestamp_end = 0; | |
847bf71a MD |
704 | break; |
705 | default: | |
706 | assert(0); | |
707 | } | |
03798a93 | 708 | if (pos->cur_index >= pos->packet_real_index->len) { |
7d97fad9 MD |
709 | /* |
710 | * When a stream reaches the end of the | |
711 | * file, we need to show the number of | |
712 | * events discarded ourselves, because | |
713 | * there is no next event scheduled to | |
714 | * be printed in the output. | |
715 | */ | |
716 | if (file_stream->parent.events_discarded) { | |
badea1a2 JD |
717 | /* |
718 | * We need to check if we are in trace | |
719 | * read or called from packet indexing. | |
720 | * In this last case, the collection is | |
721 | * not there, so we cannot print the | |
722 | * timestamps. | |
723 | */ | |
724 | if ((&file_stream->parent)->stream_class->trace->collection) { | |
725 | fflush(stdout); | |
4c4ba021 | 726 | fprintf(stderr, "[warning] Tracer discarded %" PRIu64 " events at end of stream between [", |
badea1a2 | 727 | file_stream->parent.events_discarded); |
03798a93 JD |
728 | if (opt_clock_cycles) { |
729 | ctf_print_timestamp(stderr, | |
730 | &file_stream->parent, | |
731 | file_stream->parent.prev_cycles_timestamp); | |
732 | fprintf(stderr, "] and ["); | |
733 | ctf_print_timestamp(stderr, &file_stream->parent, | |
734 | file_stream->parent.prev_cycles_timestamp_end); | |
735 | } else { | |
736 | ctf_print_timestamp(stderr, | |
737 | &file_stream->parent, | |
738 | file_stream->parent.prev_real_timestamp); | |
739 | fprintf(stderr, "] and ["); | |
740 | ctf_print_timestamp(stderr, &file_stream->parent, | |
741 | file_stream->parent.prev_real_timestamp_end); | |
742 | } | |
a0b34fbb | 743 | fprintf(stderr, "]. You should consider recording a new trace with larger buffers or with fewer events enabled.\n"); |
badea1a2 JD |
744 | fflush(stderr); |
745 | } | |
7d97fad9 MD |
746 | file_stream->parent.events_discarded = 0; |
747 | } | |
670977d3 | 748 | pos->offset = EOF; |
847bf71a MD |
749 | return; |
750 | } | |
03798a93 JD |
751 | packet_index = &g_array_index(pos->packet_cycles_index, |
752 | struct packet_index, | |
753 | pos->cur_index); | |
754 | file_stream->parent.cycles_timestamp = packet_index->timestamp_begin; | |
755 | ||
756 | packet_index = &g_array_index(pos->packet_real_index, | |
757 | struct packet_index, | |
758 | pos->cur_index); | |
759 | file_stream->parent.real_timestamp = packet_index->timestamp_begin; | |
20d0dcf9 | 760 | pos->mmap_offset = packet_index->offset; |
8c572eba MD |
761 | |
762 | /* Lookup context/packet size in index */ | |
20d0dcf9 MD |
763 | pos->content_size = packet_index->content_size; |
764 | pos->packet_size = packet_index->packet_size; | |
765 | if (packet_index->data_offset < packet_index->content_size) { | |
75cc2c35 | 766 | pos->offset = 0; /* will read headers */ |
20d0dcf9 | 767 | } else if (packet_index->data_offset == packet_index->content_size) { |
5f643ed7 | 768 | /* empty packet */ |
20d0dcf9 | 769 | pos->offset = packet_index->data_offset; |
3abe83c7 | 770 | whence = SEEK_CUR; |
5f643ed7 | 771 | goto read_next_packet; |
7eda6fc7 | 772 | } else { |
2b9a764d MD |
773 | pos->offset = EOF; |
774 | return; | |
775 | } | |
8c572eba | 776 | } |
0f980a35 | 777 | /* map new base. Need mapping length from header. */ |
aee35fcc MD |
778 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
779 | pos->flags, pos->fd, pos->mmap_offset); | |
780 | if (pos->base_mma == MAP_FAILED) { | |
3394d22e | 781 | fprintf(stderr, "[error] mmap error %s.\n", |
847bf71a MD |
782 | strerror(errno)); |
783 | assert(0); | |
784 | } | |
75cc2c35 MD |
785 | |
786 | /* update trace_packet_header and stream_packet_context */ | |
2d0bea29 | 787 | if (pos->prot != PROT_WRITE && file_stream->parent.trace_packet_header) { |
75cc2c35 | 788 | /* Read packet header */ |
2d0bea29 | 789 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
790 | assert(!ret); |
791 | } | |
2d0bea29 | 792 | if (pos->prot != PROT_WRITE && file_stream->parent.stream_packet_context) { |
75cc2c35 | 793 | /* Read packet context */ |
2d0bea29 | 794 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
795 | assert(!ret); |
796 | } | |
0f980a35 MD |
797 | } |
798 | ||
b4c19c1e MD |
799 | static |
800 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
801 | { | |
802 | uint32_t magic; | |
803 | size_t len; | |
804 | int ret = 0; | |
805 | ||
806 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 807 | if (len != 1) { |
b4c19c1e MD |
808 | goto end; |
809 | } | |
810 | if (magic == TSDL_MAGIC) { | |
811 | ret = 1; | |
812 | td->byte_order = BYTE_ORDER; | |
0d336fdf | 813 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
814 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { |
815 | ret = 1; | |
816 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
817 | LITTLE_ENDIAN : BIG_ENDIAN; | |
0d336fdf | 818 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
819 | } |
820 | end: | |
821 | rewind(fp); | |
822 | return ret; | |
823 | } | |
824 | ||
5c262147 MD |
825 | /* |
826 | * Returns 0 on success, -1 on error. | |
827 | */ | |
828 | static | |
829 | int check_version(unsigned int major, unsigned int minor) | |
830 | { | |
831 | switch (major) { | |
832 | case 1: | |
833 | switch (minor) { | |
834 | case 8: | |
835 | return 0; | |
836 | default: | |
837 | goto warning; | |
838 | } | |
839 | default: | |
840 | goto warning; | |
841 | ||
842 | } | |
843 | ||
844 | /* eventually return an error instead of warning */ | |
845 | warning: | |
3394d22e | 846 | fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n", |
5c262147 MD |
847 | major, minor); |
848 | return 0; | |
849 | } | |
850 | ||
b4c19c1e MD |
851 | static |
852 | int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, | |
853 | FILE *out) | |
854 | { | |
855 | struct metadata_packet_header header; | |
a0fe7d97 | 856 | size_t readlen, writelen, toread; |
f8254867 | 857 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
858 | int ret = 0; |
859 | ||
a91a962e | 860 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 861 | if (readlen < 1) |
b4c19c1e MD |
862 | return -EINVAL; |
863 | ||
864 | if (td->byte_order != BYTE_ORDER) { | |
865 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
866 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
867 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
868 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
869 | } | |
870 | if (header.checksum) | |
3394d22e | 871 | fprintf(stderr, "[warning] checksum verification not supported yet.\n"); |
b4c19c1e | 872 | if (header.compression_scheme) { |
3394d22e | 873 | fprintf(stderr, "[error] compression (%u) not supported yet.\n", |
b4c19c1e MD |
874 | header.compression_scheme); |
875 | return -EINVAL; | |
876 | } | |
877 | if (header.encryption_scheme) { | |
3394d22e | 878 | fprintf(stderr, "[error] encryption (%u) not supported yet.\n", |
b4c19c1e MD |
879 | header.encryption_scheme); |
880 | return -EINVAL; | |
881 | } | |
882 | if (header.checksum_scheme) { | |
3394d22e | 883 | fprintf(stderr, "[error] checksum (%u) not supported yet.\n", |
b4c19c1e MD |
884 | header.checksum_scheme); |
885 | return -EINVAL; | |
886 | } | |
5c262147 MD |
887 | if (check_version(header.major, header.minor) < 0) |
888 | return -EINVAL; | |
b4c19c1e MD |
889 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { |
890 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
891 | CTF_TRACE_SET_FIELD(td, uuid); | |
892 | } else { | |
43e34335 | 893 | if (babeltrace_uuid_compare(header.uuid, td->uuid)) |
b4c19c1e MD |
894 | return -EINVAL; |
895 | } | |
896 | ||
255b2138 | 897 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
898 | |
899 | for (;;) { | |
f8254867 | 900 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
901 | if (ferror(in)) { |
902 | ret = -EINVAL; | |
903 | break; | |
904 | } | |
4152822b | 905 | if (babeltrace_debug) { |
f8254867 | 906 | buf[readlen] = '\0'; |
3394d22e | 907 | fprintf(stderr, "[debug] metadata packet read: %s\n", |
4152822b MD |
908 | buf); |
909 | } | |
910 | ||
b4c19c1e MD |
911 | writelen = fwrite(buf, sizeof(char), readlen, out); |
912 | if (writelen < readlen) { | |
913 | ret = -EIO; | |
914 | break; | |
915 | } | |
916 | if (ferror(out)) { | |
917 | ret = -EINVAL; | |
918 | break; | |
919 | } | |
a0fe7d97 MD |
920 | toread -= readlen; |
921 | if (!toread) { | |
7f4b5c4d | 922 | ret = 0; /* continue reading next packet */ |
ddbc52af | 923 | goto read_padding; |
a0fe7d97 | 924 | } |
b4c19c1e MD |
925 | } |
926 | return ret; | |
ddbc52af MD |
927 | |
928 | read_padding: | |
929 | toread = (header.packet_size - header.content_size) / CHAR_BIT; | |
930 | ret = fseek(in, toread, SEEK_CUR); | |
931 | if (ret < 0) { | |
3394d22e | 932 | fprintf(stderr, "[warning] Missing padding at end of file\n"); |
ddbc52af MD |
933 | ret = 0; |
934 | } | |
935 | return ret; | |
b4c19c1e MD |
936 | } |
937 | ||
938 | static | |
939 | int ctf_open_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, | |
940 | char **buf) | |
941 | { | |
942 | FILE *in, *out; | |
943 | size_t size; | |
944 | int ret; | |
945 | ||
946 | in = *fp; | |
c4f5487e MD |
947 | /* |
948 | * Using strlen on *buf instead of size of open_memstream | |
949 | * because its size includes garbage at the end (after final | |
950 | * \0). This is the allocated size, not the actual string size. | |
951 | */ | |
f8370579 | 952 | out = babeltrace_open_memstream(buf, &size); |
a569a564 MD |
953 | if (out == NULL) { |
954 | perror("Metadata open_memstream"); | |
b4c19c1e | 955 | return -errno; |
a569a564 | 956 | } |
b4c19c1e MD |
957 | for (;;) { |
958 | ret = ctf_open_trace_metadata_packet_read(td, in, out); | |
7f4b5c4d | 959 | if (ret) { |
b4c19c1e | 960 | break; |
7f4b5c4d MD |
961 | } |
962 | if (feof(in)) { | |
963 | ret = 0; | |
b4c19c1e MD |
964 | break; |
965 | } | |
966 | } | |
f8370579 MD |
967 | /* close to flush the buffer */ |
968 | ret = babeltrace_close_memstream(buf, &size, out); | |
969 | if (ret < 0) { | |
970 | perror("babeltrace_flush_memstream"); | |
971 | fclose(in); | |
972 | return -errno; | |
973 | } | |
b4c19c1e MD |
974 | fclose(in); |
975 | /* open for reading */ | |
f8370579 | 976 | *fp = babeltrace_fmemopen(*buf, strlen(*buf), "rb"); |
a569a564 MD |
977 | if (!*fp) { |
978 | perror("Metadata fmemopen"); | |
979 | return -errno; | |
980 | } | |
b4c19c1e MD |
981 | return 0; |
982 | } | |
983 | ||
65102a8c | 984 | static |
b086c01a | 985 | int ctf_open_trace_metadata_read(struct ctf_trace *td, |
20d0dcf9 | 986 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
ae23d232 | 987 | int whence), FILE *metadata_fp) |
65102a8c MD |
988 | { |
989 | struct ctf_scanner *scanner; | |
2d0bea29 | 990 | struct ctf_file_stream *metadata_stream; |
65102a8c | 991 | FILE *fp; |
b4c19c1e | 992 | char *buf = NULL; |
65102a8c MD |
993 | int ret = 0; |
994 | ||
2d0bea29 | 995 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 996 | metadata_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 997 | |
06789ffd MD |
998 | if (packet_seek) { |
999 | metadata_stream->pos.packet_seek = packet_seek; | |
b086c01a | 1000 | } else { |
06789ffd | 1001 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
1002 | ret = -1; |
1003 | goto end_stream; | |
1004 | } | |
1005 | ||
ae23d232 JD |
1006 | if (metadata_fp) { |
1007 | fp = metadata_fp; | |
1008 | } else { | |
1009 | td->metadata = &metadata_stream->parent; | |
1010 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
1011 | if (metadata_stream->pos.fd < 0) { | |
3394d22e | 1012 | fprintf(stderr, "Unable to open metadata.\n"); |
ae23d232 JD |
1013 | return metadata_stream->pos.fd; |
1014 | } | |
65102a8c | 1015 | |
ae23d232 JD |
1016 | fp = fdopen(metadata_stream->pos.fd, "r"); |
1017 | if (!fp) { | |
3394d22e | 1018 | fprintf(stderr, "[error] Unable to open metadata stream.\n"); |
a569a564 | 1019 | perror("Metadata stream open"); |
ae23d232 JD |
1020 | ret = -errno; |
1021 | goto end_stream; | |
1022 | } | |
1023 | } | |
65102a8c MD |
1024 | if (babeltrace_debug) |
1025 | yydebug = 1; | |
1026 | ||
b4c19c1e MD |
1027 | if (packet_metadata(td, fp)) { |
1028 | ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf); | |
1029 | if (ret) | |
1030 | goto end_packet_read; | |
da75b0f7 | 1031 | } else { |
5c262147 MD |
1032 | unsigned int major, minor; |
1033 | ssize_t nr_items; | |
8c2df3f5 | 1034 | |
da75b0f7 | 1035 | td->byte_order = BYTE_ORDER; |
8c2df3f5 | 1036 | |
5c262147 MD |
1037 | /* Check text-only metadata header and version */ |
1038 | nr_items = fscanf(fp, "/* CTF %u.%u", &major, &minor); | |
1039 | if (nr_items < 2) | |
3394d22e | 1040 | fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n"); |
5c262147 MD |
1041 | if (check_version(major, minor) < 0) { |
1042 | ret = -EINVAL; | |
1043 | goto end_packet_read; | |
1044 | } | |
8c2df3f5 | 1045 | rewind(fp); |
b4c19c1e MD |
1046 | } |
1047 | ||
65102a8c MD |
1048 | scanner = ctf_scanner_alloc(fp); |
1049 | if (!scanner) { | |
3394d22e | 1050 | fprintf(stderr, "[error] Error allocating scanner\n"); |
65102a8c MD |
1051 | ret = -ENOMEM; |
1052 | goto end_scanner_alloc; | |
1053 | } | |
1054 | ret = ctf_scanner_append_ast(scanner); | |
1055 | if (ret) { | |
3394d22e | 1056 | fprintf(stderr, "[error] Error creating AST\n"); |
65102a8c MD |
1057 | goto end; |
1058 | } | |
1059 | ||
1060 | if (babeltrace_debug) { | |
3394d22e | 1061 | ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root); |
65102a8c | 1062 | if (ret) { |
3394d22e | 1063 | fprintf(stderr, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
1064 | goto end; |
1065 | } | |
1066 | } | |
1067 | ||
3394d22e | 1068 | ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root); |
65102a8c | 1069 | if (ret) { |
3394d22e | 1070 | fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
1071 | goto end; |
1072 | } | |
3394d22e | 1073 | ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root, |
ac5c6ca0 | 1074 | td, td->byte_order); |
65102a8c | 1075 | if (ret) { |
3394d22e | 1076 | fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
1077 | goto end; |
1078 | } | |
1079 | end: | |
1080 | ctf_scanner_free(scanner); | |
1081 | end_scanner_alloc: | |
b4c19c1e | 1082 | end_packet_read: |
8210f9da MD |
1083 | if (fp) |
1084 | fclose(fp); | |
b4c19c1e | 1085 | free(buf); |
65102a8c | 1086 | end_stream: |
2d0bea29 MD |
1087 | close(metadata_stream->pos.fd); |
1088 | if (ret) | |
1089 | g_free(metadata_stream); | |
0f980a35 MD |
1090 | return ret; |
1091 | } | |
1092 | ||
e28d4618 | 1093 | static |
c716f83b | 1094 | struct ctf_event_definition *create_event_definitions(struct ctf_trace *td, |
9e88d150 | 1095 | struct ctf_stream_definition *stream, |
4716614a | 1096 | struct ctf_event_declaration *event) |
e28d4618 | 1097 | { |
c716f83b | 1098 | struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1); |
e28d4618 MD |
1099 | |
1100 | if (event->context_decl) { | |
1101 | struct definition *definition = | |
1102 | event->context_decl->p.definition_new(&event->context_decl->p, | |
1103 | stream->parent_def_scope, 0, 0, "event.context"); | |
1104 | if (!definition) { | |
1105 | goto error; | |
1106 | } | |
42dc00b7 | 1107 | stream_event->event_context = container_of(definition, |
e28d4618 | 1108 | struct definition_struct, p); |
42dc00b7 | 1109 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
1110 | } |
1111 | if (event->fields_decl) { | |
1112 | struct definition *definition = | |
1113 | event->fields_decl->p.definition_new(&event->fields_decl->p, | |
1114 | stream->parent_def_scope, 0, 0, "event.fields"); | |
1115 | if (!definition) { | |
1116 | goto error; | |
1117 | } | |
42dc00b7 | 1118 | stream_event->event_fields = container_of(definition, |
e28d4618 | 1119 | struct definition_struct, p); |
42dc00b7 | 1120 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 1121 | } |
d3ded99d | 1122 | stream_event->stream = stream; |
42dc00b7 | 1123 | return stream_event; |
e28d4618 MD |
1124 | |
1125 | error: | |
42dc00b7 MD |
1126 | if (stream_event->event_fields) |
1127 | definition_unref(&stream_event->event_fields->p); | |
1128 | if (stream_event->event_context) | |
1129 | definition_unref(&stream_event->event_context->p); | |
e28d4618 MD |
1130 | return NULL; |
1131 | } | |
1132 | ||
1133 | static | |
9e88d150 | 1134 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 | 1135 | { |
f380e105 | 1136 | struct ctf_stream_declaration *stream_class; |
e28d4618 MD |
1137 | int ret; |
1138 | int i; | |
1139 | ||
1140 | if (stream->stream_definitions_created) | |
1141 | return 0; | |
1142 | ||
1143 | stream_class = stream->stream_class; | |
1144 | ||
1145 | if (stream_class->packet_context_decl) { | |
1146 | struct definition *definition = | |
1147 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, | |
1148 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
1149 | if (!definition) { | |
1150 | ret = -EINVAL; | |
1151 | goto error; | |
1152 | } | |
1153 | stream->stream_packet_context = container_of(definition, | |
1154 | struct definition_struct, p); | |
1155 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
1156 | } | |
1157 | if (stream_class->event_header_decl) { | |
1158 | struct definition *definition = | |
1159 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, | |
1160 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
1161 | if (!definition) { | |
1162 | ret = -EINVAL; | |
1163 | goto error; | |
1164 | } | |
1165 | stream->stream_event_header = | |
1166 | container_of(definition, struct definition_struct, p); | |
1167 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
1168 | } | |
1169 | if (stream_class->event_context_decl) { | |
1170 | struct definition *definition = | |
1171 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, | |
1172 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
1173 | if (!definition) { | |
1174 | ret = -EINVAL; | |
1175 | goto error; | |
1176 | } | |
1177 | stream->stream_event_context = | |
1178 | container_of(definition, struct definition_struct, p); | |
1179 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
1180 | } | |
1181 | stream->events_by_id = g_ptr_array_new(); | |
1182 | g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len); | |
1183 | for (i = 0; i < stream->events_by_id->len; i++) { | |
4716614a | 1184 | struct ctf_event_declaration *event = g_ptr_array_index(stream_class->events_by_id, i); |
c716f83b | 1185 | struct ctf_event_definition *stream_event; |
e28d4618 MD |
1186 | |
1187 | if (!event) | |
1188 | continue; | |
42dc00b7 MD |
1189 | stream_event = create_event_definitions(td, stream, event); |
1190 | if (!stream_event) | |
e28d4618 | 1191 | goto error_event; |
42dc00b7 | 1192 | g_ptr_array_index(stream->events_by_id, i) = stream_event; |
e28d4618 MD |
1193 | } |
1194 | return 0; | |
1195 | ||
1196 | error_event: | |
1197 | for (i = 0; i < stream->events_by_id->len; i++) { | |
c716f83b | 1198 | struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i); |
42dc00b7 MD |
1199 | if (stream_event) |
1200 | g_free(stream_event); | |
e28d4618 MD |
1201 | } |
1202 | g_ptr_array_free(stream->events_by_id, TRUE); | |
1203 | error: | |
1204 | if (stream->stream_event_context) | |
1205 | definition_unref(&stream->stream_event_context->p); | |
1206 | if (stream->stream_event_header) | |
1207 | definition_unref(&stream->stream_event_header->p); | |
1208 | if (stream->stream_packet_context) | |
1209 | definition_unref(&stream->stream_packet_context->p); | |
1210 | return ret; | |
1211 | } | |
1212 | ||
0f980a35 MD |
1213 | |
1214 | static | |
46322b33 | 1215 | int create_stream_packet_index(struct ctf_trace *td, |
0f980a35 MD |
1216 | struct ctf_file_stream *file_stream) |
1217 | { | |
f380e105 | 1218 | struct ctf_stream_declaration *stream; |
0f980a35 | 1219 | int len_index; |
46322b33 | 1220 | struct ctf_stream_pos *pos; |
0f980a35 MD |
1221 | struct stat filestats; |
1222 | struct packet_index packet_index; | |
1223 | int first_packet = 1; | |
1224 | int ret; | |
1225 | ||
1226 | pos = &file_stream->pos; | |
1227 | ||
1228 | ret = fstat(pos->fd, &filestats); | |
1229 | if (ret < 0) | |
1230 | return ret; | |
1231 | ||
8895362d MD |
1232 | if (filestats.st_size < MAX_PACKET_HEADER_LEN / CHAR_BIT) |
1233 | return -EINVAL; | |
1234 | ||
0f980a35 MD |
1235 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
1236 | uint64_t stream_id = 0; | |
1237 | ||
aee35fcc | 1238 | if (pos->base_mma) { |
0f980a35 | 1239 | /* unmap old base */ |
aee35fcc | 1240 | ret = munmap_align(pos->base_mma); |
0f980a35 | 1241 | if (ret) { |
3394d22e | 1242 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
1243 | strerror(errno)); |
1244 | return ret; | |
1245 | } | |
aee35fcc | 1246 | pos->base_mma = NULL; |
0f980a35 MD |
1247 | } |
1248 | /* map new base. Need mapping length from header. */ | |
aee35fcc | 1249 | pos->base_mma = mmap_align(MAX_PACKET_HEADER_LEN / CHAR_BIT, PROT_READ, |
0f980a35 | 1250 | MAP_PRIVATE, pos->fd, pos->mmap_offset); |
aee35fcc | 1251 | assert(pos->base_mma != MAP_FAILED); |
dc48ecad MD |
1252 | pos->content_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ |
1253 | pos->packet_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ | |
0f980a35 MD |
1254 | pos->offset = 0; /* Position of the packet header */ |
1255 | ||
8c572eba MD |
1256 | packet_index.offset = pos->mmap_offset; |
1257 | packet_index.content_size = 0; | |
1258 | packet_index.packet_size = 0; | |
75cc2c35 MD |
1259 | packet_index.timestamp_begin = 0; |
1260 | packet_index.timestamp_end = 0; | |
41e82e00 | 1261 | packet_index.events_discarded = 0; |
8c572eba | 1262 | |
0f980a35 | 1263 | /* read and check header, set stream id (and check) */ |
2d0bea29 | 1264 | if (file_stream->parent.trace_packet_header) { |
0f980a35 | 1265 | /* Read packet header */ |
2d0bea29 | 1266 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
c5e74408 MD |
1267 | if (ret) |
1268 | return ret; | |
2d0bea29 | 1269 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); |
0f980a35 | 1270 | if (len_index >= 0) { |
b1a2f580 | 1271 | struct definition *field; |
f4c56ac2 | 1272 | uint64_t magic; |
0f980a35 | 1273 | |
2d0bea29 | 1274 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
f4c56ac2 MD |
1275 | magic = get_unsigned_int(field); |
1276 | if (magic != CTF_MAGIC) { | |
3394d22e | 1277 | fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", |
f4c56ac2 | 1278 | magic, |
03798a93 | 1279 | file_stream->pos.packet_cycles_index->len, |
8c572eba | 1280 | (ssize_t) pos->mmap_offset); |
0f980a35 MD |
1281 | return -EINVAL; |
1282 | } | |
1283 | } | |
1284 | ||
1285 | /* check uuid */ | |
2d0bea29 | 1286 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); |
0f980a35 MD |
1287 | if (len_index >= 0) { |
1288 | struct definition_array *defarray; | |
b1a2f580 | 1289 | struct definition *field; |
0f980a35 | 1290 | uint64_t i; |
43e34335 | 1291 | uint8_t uuidval[BABELTRACE_UUID_LEN]; |
0f980a35 | 1292 | |
2d0bea29 | 1293 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
1294 | assert(field->declaration->id == CTF_TYPE_ARRAY); |
1295 | defarray = container_of(field, struct definition_array, p); | |
43e34335 | 1296 | assert(array_len(defarray) == BABELTRACE_UUID_LEN); |
0f980a35 | 1297 | |
43e34335 | 1298 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) { |
0f980a35 | 1299 | struct definition *elem; |
0f980a35 MD |
1300 | |
1301 | elem = array_index(defarray, i); | |
f4c56ac2 | 1302 | uuidval[i] = get_unsigned_int(elem); |
0f980a35 | 1303 | } |
43e34335 | 1304 | ret = babeltrace_uuid_compare(td->uuid, uuidval); |
0f980a35 | 1305 | if (ret) { |
3394d22e | 1306 | fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n"); |
0f980a35 MD |
1307 | return -EINVAL; |
1308 | } | |
1309 | } | |
1310 | ||
1311 | ||
2d0bea29 | 1312 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
0f980a35 | 1313 | if (len_index >= 0) { |
b1a2f580 | 1314 | struct definition *field; |
0f980a35 | 1315 | |
2d0bea29 | 1316 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
f4c56ac2 | 1317 | stream_id = get_unsigned_int(field); |
0f980a35 MD |
1318 | } |
1319 | } | |
1320 | ||
2d0bea29 | 1321 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
3394d22e | 1322 | fprintf(stderr, "[error] Stream ID is changing within a stream.\n"); |
0f980a35 MD |
1323 | return -EINVAL; |
1324 | } | |
1325 | if (first_packet) { | |
2d0bea29 | 1326 | file_stream->parent.stream_id = stream_id; |
46322b33 | 1327 | if (stream_id >= td->streams->len) { |
3394d22e | 1328 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); |
0f980a35 MD |
1329 | return -EINVAL; |
1330 | } | |
46322b33 | 1331 | stream = g_ptr_array_index(td->streams, stream_id); |
0f980a35 | 1332 | if (!stream) { |
3394d22e | 1333 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); |
0f980a35 MD |
1334 | return -EINVAL; |
1335 | } | |
2d0bea29 | 1336 | file_stream->parent.stream_class = stream; |
01c76b24 | 1337 | ret = create_stream_definitions(td, &file_stream->parent); |
862434ec MD |
1338 | if (ret) |
1339 | return ret; | |
0f980a35 MD |
1340 | } |
1341 | first_packet = 0; | |
1342 | ||
2d0bea29 | 1343 | if (file_stream->parent.stream_packet_context) { |
dc48ecad | 1344 | /* Read packet context */ |
2d0bea29 | 1345 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
c5e74408 MD |
1346 | if (ret) |
1347 | return ret; | |
dc48ecad | 1348 | /* read content size from header */ |
2d0bea29 | 1349 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); |
dc48ecad | 1350 | if (len_index >= 0) { |
b1a2f580 | 1351 | struct definition *field; |
dc48ecad | 1352 | |
2d0bea29 | 1353 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1354 | packet_index.content_size = get_unsigned_int(field); |
dc48ecad MD |
1355 | } else { |
1356 | /* Use file size for packet size */ | |
8c572eba | 1357 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
dc48ecad MD |
1358 | } |
1359 | ||
1360 | /* read packet size from header */ | |
2d0bea29 | 1361 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); |
dc48ecad | 1362 | if (len_index >= 0) { |
b1a2f580 | 1363 | struct definition *field; |
dc48ecad | 1364 | |
2d0bea29 | 1365 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1366 | packet_index.packet_size = get_unsigned_int(field); |
dc48ecad MD |
1367 | } else { |
1368 | /* Use content size if non-zero, else file size */ | |
8c572eba | 1369 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
dc48ecad | 1370 | } |
75cc2c35 MD |
1371 | |
1372 | /* read timestamp begin from header */ | |
2d0bea29 | 1373 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); |
75cc2c35 | 1374 | if (len_index >= 0) { |
75cc2c35 MD |
1375 | struct definition *field; |
1376 | ||
2d0bea29 | 1377 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1378 | packet_index.timestamp_begin = get_unsigned_int(field); |
03798a93 JD |
1379 | if (file_stream->parent.stream_class->trace->collection) { |
1380 | packet_index.timestamp_begin = | |
1381 | ctf_get_real_timestamp( | |
1382 | &file_stream->parent, | |
1383 | packet_index.timestamp_begin); | |
1384 | } | |
75cc2c35 MD |
1385 | } |
1386 | ||
1387 | /* read timestamp end from header */ | |
2d0bea29 | 1388 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); |
75cc2c35 | 1389 | if (len_index >= 0) { |
75cc2c35 MD |
1390 | struct definition *field; |
1391 | ||
2d0bea29 | 1392 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1393 | packet_index.timestamp_end = get_unsigned_int(field); |
03798a93 JD |
1394 | if (file_stream->parent.stream_class->trace->collection) { |
1395 | packet_index.timestamp_end = | |
1396 | ctf_get_real_timestamp( | |
1397 | &file_stream->parent, | |
1398 | packet_index.timestamp_end); | |
1399 | } | |
75cc2c35 | 1400 | } |
41e82e00 MD |
1401 | |
1402 | /* read events discarded from header */ | |
1403 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded")); | |
1404 | if (len_index >= 0) { | |
1405 | struct definition *field; | |
1406 | ||
1407 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1408 | packet_index.events_discarded = get_unsigned_int(field); | |
4c4ba021 | 1409 | packet_index.events_discarded_len = get_int_len(field); |
41e82e00 | 1410 | } |
0f980a35 MD |
1411 | } else { |
1412 | /* Use file size for packet size */ | |
8c572eba | 1413 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
0f980a35 | 1414 | /* Use content size if non-zero, else file size */ |
8c572eba | 1415 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
0f980a35 | 1416 | } |
546293fa MD |
1417 | |
1418 | /* Validate content size and packet size values */ | |
1419 | if (packet_index.content_size > packet_index.packet_size) { | |
7e18eedf | 1420 | fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n", |
546293fa MD |
1421 | packet_index.content_size, packet_index.packet_size); |
1422 | return -EINVAL; | |
1423 | } | |
1424 | ||
7e18eedf JN |
1425 | if (packet_index.packet_size > ((uint64_t)filestats.st_size - packet_index.offset) * CHAR_BIT) { |
1426 | fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n", | |
0fe3c2c9 | 1427 | packet_index.packet_size, ((uint64_t)filestats.st_size - packet_index.offset) * CHAR_BIT); |
546293fa MD |
1428 | return -EINVAL; |
1429 | } | |
1430 | ||
847bf71a MD |
1431 | /* Save position after header and context */ |
1432 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1433 | |
0f980a35 | 1434 | /* add index to packet array */ |
03798a93 | 1435 | g_array_append_val(file_stream->pos.packet_cycles_index, packet_index); |
0f980a35 | 1436 | |
8c572eba | 1437 | pos->mmap_offset += packet_index.packet_size / CHAR_BIT; |
0f980a35 MD |
1438 | } |
1439 | ||
1440 | return 0; | |
1441 | } | |
1442 | ||
e28d4618 | 1443 | static |
9e88d150 | 1444 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 MD |
1445 | { |
1446 | int ret; | |
1447 | ||
1448 | if (td->packet_header_decl) { | |
1449 | struct definition *definition = | |
1450 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, | |
1451 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
1452 | if (!definition) { | |
1453 | ret = -EINVAL; | |
1454 | goto error; | |
1455 | } | |
1456 | stream->trace_packet_header = | |
1457 | container_of(definition, struct definition_struct, p); | |
1458 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
1459 | } | |
1460 | ||
1461 | return 0; | |
1462 | ||
1463 | error: | |
1464 | return ret; | |
1465 | } | |
1466 | ||
0f980a35 MD |
1467 | /* |
1468 | * Note: many file streams can inherit from the same stream class | |
1469 | * description (metadata). | |
1470 | */ | |
1471 | static | |
b086c01a | 1472 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags, |
20d0dcf9 | 1473 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
b086c01a | 1474 | int whence)) |
0f980a35 | 1475 | { |
ff075710 | 1476 | int ret, fd; |
0f980a35 | 1477 | struct ctf_file_stream *file_stream; |
ff075710 | 1478 | struct stat statbuf; |
0f980a35 | 1479 | |
ff075710 MD |
1480 | fd = openat(td->dirfd, path, flags); |
1481 | if (fd < 0) { | |
a569a564 | 1482 | perror("File stream openat()"); |
ff075710 | 1483 | ret = fd; |
0f980a35 | 1484 | goto error; |
a569a564 | 1485 | } |
ff075710 MD |
1486 | |
1487 | /* Don't try to mmap subdirectories. Skip them, return success. */ | |
1488 | ret = fstat(fd, &statbuf); | |
1489 | if (ret) { | |
1490 | perror("File stream fstat()"); | |
1491 | goto fstat_error; | |
1492 | } | |
1493 | if (S_ISDIR(statbuf.st_mode)) { | |
1494 | fprintf(stderr, "[warning] Skipping directory '%s' found in trace\n", path); | |
1495 | ret = 0; | |
1496 | goto fd_is_dir_ok; | |
1497 | } | |
1498 | ||
0f980a35 | 1499 | file_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1500 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1501 | |
06789ffd MD |
1502 | if (packet_seek) { |
1503 | file_stream->pos.packet_seek = packet_seek; | |
b086c01a | 1504 | } else { |
06789ffd | 1505 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
1506 | ret = -1; |
1507 | goto error_def; | |
1508 | } | |
1509 | ||
ff075710 | 1510 | ctf_init_pos(&file_stream->pos, fd, flags); |
2d0bea29 | 1511 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
1512 | if (ret) |
1513 | goto error_def; | |
25ccc85b MD |
1514 | /* |
1515 | * For now, only a single slock is supported. | |
1516 | */ | |
1517 | file_stream->parent.current_clock = td->single_clock; | |
0f980a35 MD |
1518 | ret = create_stream_packet_index(td, file_stream); |
1519 | if (ret) | |
1520 | goto error_index; | |
1521 | /* Add stream file to stream class */ | |
2d0bea29 MD |
1522 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
1523 | &file_stream->parent); | |
0f980a35 MD |
1524 | return 0; |
1525 | ||
1526 | error_index: | |
2d0bea29 MD |
1527 | if (file_stream->parent.trace_packet_header) |
1528 | definition_unref(&file_stream->parent.trace_packet_header->p); | |
e28d4618 | 1529 | error_def: |
46322b33 | 1530 | ctf_fini_pos(&file_stream->pos); |
0f980a35 | 1531 | g_free(file_stream); |
ff075710 MD |
1532 | fd_is_dir_ok: |
1533 | fstat_error: | |
1534 | close(fd); | |
0f980a35 | 1535 | error: |
65102a8c MD |
1536 | return ret; |
1537 | } | |
1538 | ||
bbefb8dd | 1539 | static |
5b80ddfb | 1540 | int ctf_open_trace_read(struct ctf_trace *td, |
8c250d87 | 1541 | const char *path, int flags, |
20d0dcf9 | 1542 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
ae23d232 | 1543 | int whence), FILE *metadata_fp) |
bbefb8dd MD |
1544 | { |
1545 | int ret; | |
65102a8c MD |
1546 | struct dirent *dirent; |
1547 | struct dirent *diriter; | |
1548 | size_t dirent_len; | |
bbefb8dd | 1549 | |
46322b33 | 1550 | td->flags = flags; |
bbefb8dd MD |
1551 | |
1552 | /* Open trace directory */ | |
46322b33 MD |
1553 | td->dir = opendir(path); |
1554 | if (!td->dir) { | |
6a6b384c | 1555 | fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path); |
bbefb8dd MD |
1556 | ret = -ENOENT; |
1557 | goto error; | |
1558 | } | |
1559 | ||
46322b33 MD |
1560 | td->dirfd = open(path, 0); |
1561 | if (td->dirfd < 0) { | |
6a6b384c | 1562 | fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path); |
a569a564 MD |
1563 | perror("Trace directory open"); |
1564 | ret = -errno; | |
65102a8c MD |
1565 | goto error_dirfd; |
1566 | } | |
5b80ddfb MD |
1567 | strncpy(td->path, path, sizeof(td->path)); |
1568 | td->path[sizeof(td->path) - 1] = '\0'; | |
0f980a35 | 1569 | |
65102a8c MD |
1570 | /* |
1571 | * Keep the metadata file separate. | |
1572 | */ | |
bbefb8dd | 1573 | |
06789ffd | 1574 | ret = ctf_open_trace_metadata_read(td, packet_seek, metadata_fp); |
65102a8c | 1575 | if (ret) { |
6a6b384c | 1576 | fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path); |
65102a8c MD |
1577 | goto error_metadata; |
1578 | } | |
bbefb8dd MD |
1579 | |
1580 | /* | |
1581 | * Open each stream: for each file, try to open, check magic | |
1582 | * number, and get the stream ID to add to the right location in | |
1583 | * the stream array. | |
bbefb8dd MD |
1584 | */ |
1585 | ||
65102a8c | 1586 | dirent_len = offsetof(struct dirent, d_name) + |
46322b33 | 1587 | fpathconf(td->dirfd, _PC_NAME_MAX) + 1; |
bbefb8dd | 1588 | |
65102a8c | 1589 | dirent = malloc(dirent_len); |
bbefb8dd | 1590 | |
65102a8c | 1591 | for (;;) { |
46322b33 | 1592 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 1593 | if (ret) { |
3394d22e | 1594 | fprintf(stderr, "[error] Readdir error.\n"); |
65102a8c | 1595 | goto readdir_error; |
65102a8c MD |
1596 | } |
1597 | if (!diriter) | |
1598 | break; | |
d8ea2d29 MD |
1599 | /* Ignore hidden files, ., .. and metadata. */ |
1600 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
1601 | || !strcmp(diriter->d_name, "..") |
1602 | || !strcmp(diriter->d_name, "metadata")) | |
1603 | continue; | |
06789ffd MD |
1604 | ret = ctf_open_file_stream_read(td, diriter->d_name, |
1605 | flags, packet_seek); | |
dc48ecad | 1606 | if (ret) { |
3394d22e | 1607 | fprintf(stderr, "[error] Open file stream error.\n"); |
dc48ecad MD |
1608 | goto readdir_error; |
1609 | } | |
65102a8c | 1610 | } |
bbefb8dd | 1611 | |
65102a8c | 1612 | free(dirent); |
bbefb8dd | 1613 | return 0; |
65102a8c MD |
1614 | |
1615 | readdir_error: | |
1616 | free(dirent); | |
1617 | error_metadata: | |
46322b33 | 1618 | close(td->dirfd); |
65102a8c | 1619 | error_dirfd: |
46322b33 | 1620 | closedir(td->dir); |
bbefb8dd MD |
1621 | error: |
1622 | return ret; | |
1623 | } | |
1624 | ||
03798a93 JD |
1625 | /* |
1626 | * ctf_open_trace: Open a CTF trace and index it. | |
1627 | * Note that the user must seek the trace after the open (using the iterator) | |
1628 | * since the index creation read it entirely. | |
1629 | */ | |
e9378815 | 1630 | static |
5b80ddfb | 1631 | struct trace_descriptor *ctf_open_trace(const char *path, int flags, |
20d0dcf9 | 1632 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
ae23d232 | 1633 | int whence), FILE *metadata_fp) |
bbefb8dd | 1634 | { |
46322b33 | 1635 | struct ctf_trace *td; |
bbefb8dd MD |
1636 | int ret; |
1637 | ||
2715de36 MD |
1638 | /* |
1639 | * If packet_seek is NULL, we provide our default version. | |
1640 | */ | |
1641 | if (!packet_seek) | |
1642 | packet_seek = ctf_packet_seek; | |
1643 | ||
46322b33 | 1644 | td = g_new0(struct ctf_trace, 1); |
bbefb8dd | 1645 | |
8c572eba | 1646 | switch (flags & O_ACCMODE) { |
bbefb8dd | 1647 | case O_RDONLY: |
b61922b5 | 1648 | if (!path) { |
3394d22e | 1649 | fprintf(stderr, "[error] Path missing for input CTF trace.\n"); |
b61922b5 MD |
1650 | goto error; |
1651 | } | |
06789ffd | 1652 | ret = ctf_open_trace_read(td, path, flags, packet_seek, metadata_fp); |
bbefb8dd MD |
1653 | if (ret) |
1654 | goto error; | |
1655 | break; | |
989c73bc | 1656 | case O_RDWR: |
3394d22e | 1657 | fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n"); |
46322b33 | 1658 | goto error; |
bbefb8dd | 1659 | default: |
3394d22e | 1660 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
1661 | goto error; |
1662 | } | |
1663 | ||
46322b33 | 1664 | return &td->parent; |
bbefb8dd MD |
1665 | error: |
1666 | g_free(td); | |
1667 | return NULL; | |
1668 | } | |
1669 | ||
f571dfb1 JD |
1670 | |
1671 | void ctf_init_mmap_pos(struct ctf_stream_pos *pos, | |
1672 | struct mmap_stream *mmap_info) | |
1673 | { | |
1674 | pos->mmap_offset = 0; | |
1675 | pos->packet_size = 0; | |
1676 | pos->content_size = 0; | |
1677 | pos->content_size_loc = NULL; | |
1678 | pos->fd = mmap_info->fd; | |
aee35fcc | 1679 | pos->base_mma = NULL; |
f571dfb1 JD |
1680 | pos->offset = 0; |
1681 | pos->dummy = false; | |
1682 | pos->cur_index = 0; | |
03798a93 JD |
1683 | pos->packet_cycles_index = NULL; |
1684 | pos->packet_real_index = NULL; | |
f571dfb1 JD |
1685 | pos->prot = PROT_READ; |
1686 | pos->flags = MAP_PRIVATE; | |
1687 | pos->parent.rw_table = read_dispatch_table; | |
1688 | pos->parent.event_cb = ctf_read_event; | |
1689 | } | |
1690 | ||
1691 | static | |
1692 | int prepare_mmap_stream_definition(struct ctf_trace *td, | |
1693 | struct ctf_file_stream *file_stream) | |
1694 | { | |
f380e105 | 1695 | struct ctf_stream_declaration *stream; |
f571dfb1 JD |
1696 | uint64_t stream_id = 0; |
1697 | int ret; | |
1698 | ||
1699 | file_stream->parent.stream_id = stream_id; | |
1700 | if (stream_id >= td->streams->len) { | |
3394d22e | 1701 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
1702 | "in metadata.\n", stream_id); |
1703 | ret = -EINVAL; | |
1704 | goto end; | |
1705 | } | |
1706 | stream = g_ptr_array_index(td->streams, stream_id); | |
1707 | if (!stream) { | |
3394d22e | 1708 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
1709 | "in metadata.\n", stream_id); |
1710 | ret = -EINVAL; | |
1711 | goto end; | |
1712 | } | |
1713 | file_stream->parent.stream_class = stream; | |
1714 | ret = create_stream_definitions(td, &file_stream->parent); | |
1715 | end: | |
1716 | return ret; | |
1717 | } | |
1718 | ||
1719 | static | |
1720 | int ctf_open_mmap_stream_read(struct ctf_trace *td, | |
1721 | struct mmap_stream *mmap_info, | |
20d0dcf9 | 1722 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
f571dfb1 JD |
1723 | int whence)) |
1724 | { | |
1725 | int ret; | |
1726 | struct ctf_file_stream *file_stream; | |
1727 | ||
1728 | file_stream = g_new0(struct ctf_file_stream, 1); | |
3a25e036 | 1729 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
f571dfb1 JD |
1730 | ctf_init_mmap_pos(&file_stream->pos, mmap_info); |
1731 | ||
06789ffd | 1732 | file_stream->pos.packet_seek = packet_seek; |
f571dfb1 JD |
1733 | |
1734 | ret = create_trace_definitions(td, &file_stream->parent); | |
1735 | if (ret) { | |
1736 | goto error_def; | |
1737 | } | |
1738 | ||
1739 | ret = prepare_mmap_stream_definition(td, file_stream); | |
1740 | if (ret) | |
1741 | goto error_index; | |
1742 | ||
1743 | /* Add stream file to stream class */ | |
1744 | g_ptr_array_add(file_stream->parent.stream_class->streams, | |
1745 | &file_stream->parent); | |
1746 | return 0; | |
1747 | ||
1748 | error_index: | |
1749 | if (file_stream->parent.trace_packet_header) | |
1750 | definition_unref(&file_stream->parent.trace_packet_header->p); | |
1751 | error_def: | |
1752 | g_free(file_stream); | |
1753 | return ret; | |
1754 | } | |
1755 | ||
1756 | int ctf_open_mmap_trace_read(struct ctf_trace *td, | |
1757 | struct mmap_stream_list *mmap_list, | |
20d0dcf9 | 1758 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
f571dfb1 JD |
1759 | int whence), |
1760 | FILE *metadata_fp) | |
1761 | { | |
1762 | int ret; | |
1763 | struct mmap_stream *mmap_info; | |
1764 | ||
06789ffd | 1765 | ret = ctf_open_trace_metadata_read(td, ctf_packet_seek, metadata_fp); |
f571dfb1 JD |
1766 | if (ret) { |
1767 | goto error; | |
1768 | } | |
1769 | ||
1770 | /* | |
1771 | * for each stream, try to open, check magic number, and get the | |
1772 | * stream ID to add to the right location in the stream array. | |
1773 | */ | |
3122e6f0 | 1774 | bt_list_for_each_entry(mmap_info, &mmap_list->head, list) { |
06789ffd | 1775 | ret = ctf_open_mmap_stream_read(td, mmap_info, packet_seek); |
f571dfb1 | 1776 | if (ret) { |
3394d22e | 1777 | fprintf(stderr, "[error] Open file mmap stream error.\n"); |
f571dfb1 JD |
1778 | goto error; |
1779 | } | |
1780 | } | |
1781 | ||
1782 | return 0; | |
1783 | ||
1784 | error: | |
1785 | return ret; | |
1786 | } | |
1787 | ||
1788 | static | |
1789 | struct trace_descriptor *ctf_open_mmap_trace( | |
1790 | struct mmap_stream_list *mmap_list, | |
20d0dcf9 MD |
1791 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
1792 | int whence), | |
f571dfb1 JD |
1793 | FILE *metadata_fp) |
1794 | { | |
1795 | struct ctf_trace *td; | |
1796 | int ret; | |
1797 | ||
1798 | if (!metadata_fp) { | |
1799 | fprintf(stderr, "[error] No metadata file pointer associated, " | |
1800 | "required for mmap parsing\n"); | |
1801 | goto error; | |
1802 | } | |
06789ffd MD |
1803 | if (!packet_seek) { |
1804 | fprintf(stderr, "[error] packet_seek function undefined.\n"); | |
f571dfb1 JD |
1805 | goto error; |
1806 | } | |
1807 | td = g_new0(struct ctf_trace, 1); | |
06789ffd | 1808 | ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp); |
f571dfb1 JD |
1809 | if (ret) |
1810 | goto error_free; | |
1811 | ||
1812 | return &td->parent; | |
1813 | ||
1814 | error_free: | |
1815 | g_free(td); | |
1816 | error: | |
1817 | return NULL; | |
1818 | } | |
1819 | ||
03798a93 JD |
1820 | static |
1821 | int ctf_convert_index_timestamp(struct trace_descriptor *tdp) | |
1822 | { | |
1823 | int i, j, k; | |
1824 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
1825 | ||
1826 | /* for each stream_class */ | |
1827 | for (i = 0; i < td->streams->len; i++) { | |
1828 | struct ctf_stream_declaration *stream_class; | |
1829 | ||
1830 | stream_class = g_ptr_array_index(td->streams, i); | |
1831 | if (!stream_class) | |
1832 | continue; | |
1833 | /* for each file_stream */ | |
1834 | for (j = 0; j < stream_class->streams->len; j++) { | |
1835 | struct ctf_stream_definition *stream; | |
1836 | struct ctf_stream_pos *stream_pos; | |
1837 | struct ctf_file_stream *cfs; | |
1838 | ||
1839 | stream = g_ptr_array_index(stream_class->streams, j); | |
1840 | if (!stream) | |
1841 | continue; | |
1842 | cfs = container_of(stream, struct ctf_file_stream, | |
1843 | parent); | |
1844 | stream_pos = &cfs->pos; | |
1845 | stream_pos->packet_real_index = g_array_new(FALSE, TRUE, | |
1846 | sizeof(struct packet_index)); | |
1847 | ||
1848 | for (k = 0; k < stream_pos->packet_cycles_index->len; k++) { | |
1849 | struct packet_index *index; | |
1850 | struct packet_index new_index; | |
1851 | ||
1852 | index = &g_array_index(stream_pos->packet_cycles_index, | |
1853 | struct packet_index, k); | |
1854 | memcpy(&new_index, index, | |
1855 | sizeof(struct packet_index)); | |
1856 | new_index.timestamp_begin = | |
1857 | ctf_get_real_timestamp(stream, | |
1858 | index->timestamp_begin); | |
1859 | new_index.timestamp_end = | |
1860 | ctf_get_real_timestamp(stream, | |
1861 | index->timestamp_end); | |
1862 | g_array_append_val(stream_pos->packet_real_index, | |
1863 | new_index); | |
1864 | } | |
1865 | } | |
1866 | } | |
1867 | return 0; | |
1868 | } | |
1869 | ||
0f980a35 MD |
1870 | static |
1871 | void ctf_close_file_stream(struct ctf_file_stream *file_stream) | |
1872 | { | |
46322b33 | 1873 | ctf_fini_pos(&file_stream->pos); |
0f980a35 MD |
1874 | close(file_stream->pos.fd); |
1875 | } | |
1876 | ||
e9378815 | 1877 | static |
46322b33 | 1878 | void ctf_close_trace(struct trace_descriptor *tdp) |
bbefb8dd | 1879 | { |
46322b33 | 1880 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
0f980a35 MD |
1881 | int i; |
1882 | ||
46322b33 MD |
1883 | if (td->streams) { |
1884 | for (i = 0; i < td->streams->len; i++) { | |
f380e105 | 1885 | struct ctf_stream_declaration *stream; |
0f980a35 | 1886 | int j; |
e9378815 | 1887 | |
46322b33 | 1888 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
1889 | if (!stream) |
1890 | continue; | |
2d0bea29 | 1891 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 1892 | struct ctf_file_stream *file_stream; |
2d0bea29 | 1893 | file_stream = container_of(g_ptr_array_index(stream->streams, j), struct ctf_file_stream, parent); |
0f980a35 MD |
1894 | ctf_close_file_stream(file_stream); |
1895 | } | |
1896 | ||
1897 | } | |
46322b33 | 1898 | g_ptr_array_free(td->streams, TRUE); |
0f980a35 | 1899 | } |
e003ab50 JD |
1900 | |
1901 | if (td->event_declarations) { | |
1902 | for (i = 0; i < td->event_declarations->len; i++) { | |
1903 | struct bt_ctf_event_decl *event; | |
1904 | ||
1905 | event = g_ptr_array_index(td->event_declarations, i); | |
64c2c249 JD |
1906 | if (event->context_decl) |
1907 | g_ptr_array_free(event->context_decl, TRUE); | |
1908 | if (event->fields_decl) | |
1909 | g_ptr_array_free(event->fields_decl, TRUE); | |
1910 | if (event->packet_header_decl) | |
1911 | g_ptr_array_free(event->packet_header_decl, TRUE); | |
1912 | if (event->event_context_decl) | |
1913 | g_ptr_array_free(event->event_context_decl, TRUE); | |
1914 | if (event->event_header_decl) | |
1915 | g_ptr_array_free(event->event_header_decl, TRUE); | |
1916 | if (event->packet_context_decl) | |
1917 | g_ptr_array_free(event->packet_context_decl, TRUE); | |
e003ab50 JD |
1918 | g_free(event); |
1919 | } | |
1920 | g_ptr_array_free(td->event_declarations, TRUE); | |
1921 | } | |
46322b33 | 1922 | closedir(td->dir); |
bbefb8dd MD |
1923 | g_free(td); |
1924 | } | |
1925 | ||
98a04903 JD |
1926 | static |
1927 | void ctf_set_context(struct trace_descriptor *descriptor, | |
1928 | struct bt_context *ctx) | |
1929 | { | |
1930 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
1931 | parent); | |
1932 | ||
1933 | td->ctx = ctx; | |
1934 | } | |
1935 | ||
1936 | static | |
1937 | void ctf_set_handle(struct trace_descriptor *descriptor, | |
1938 | struct bt_trace_handle *handle) | |
1939 | { | |
1940 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
1941 | parent); | |
1942 | ||
1943 | td->handle = handle; | |
1944 | } | |
1945 | ||
7fb21036 | 1946 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
1947 | { |
1948 | int ret; | |
1949 | ||
4c8bfb7e | 1950 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
1951 | ret = bt_register_format(&ctf_format); |
1952 | assert(!ret); | |
1953 | } | |
698f0fe4 MD |
1954 | |
1955 | /* TODO: finalize */ |