Commit | Line | Data |
---|---|---|
1e649dff PP |
1 | /* |
2 | * Copyright 2016-2017 - Philippe Proulx <pproulx@efficios.com> | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | * of this software and associated documentation files (the "Software"), to deal | |
6 | * in the Software without restriction, including without limitation the rights | |
7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | * copies of the Software, and to permit persons to whom the Software is | |
9 | * furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | */ | |
14 | ||
d6e20753 PP |
15 | #define BT_LOG_TAG "PLUGIN-CTF-METADATA-DECODER" |
16 | #include "logging.h" | |
17 | ||
1e649dff PP |
18 | #include <stdio.h> |
19 | #include <stdbool.h> | |
20 | #include <stdint.h> | |
21 | #include <stdlib.h> | |
d6e20753 | 22 | #include <inttypes.h> |
1e649dff | 23 | #include <assert.h> |
3d9990ac PP |
24 | #include <babeltrace/compat/uuid-internal.h> |
25 | #include <babeltrace/compat/memstream-internal.h> | |
1e649dff PP |
26 | #include <babeltrace/ctf-ir/trace.h> |
27 | #include <glib.h> | |
e9383dfd | 28 | #include <string.h> |
1e649dff PP |
29 | |
30 | #include "ast.h" | |
31 | #include "decoder.h" | |
32 | #include "scanner.h" | |
33 | ||
1e649dff PP |
34 | #define TSDL_MAGIC 0x75d11d57 |
35 | ||
61d6f9b1 | 36 | extern |
f73367f8 PP |
37 | int yydebug; |
38 | ||
1e649dff PP |
39 | struct ctf_metadata_decoder { |
40 | struct ctf_visitor_generate_ir *visitor; | |
1e649dff PP |
41 | uint8_t uuid[16]; |
42 | bool is_uuid_set; | |
43 | int bo; | |
a2a54545 | 44 | struct ctf_metadata_decoder_config config; |
1e649dff PP |
45 | }; |
46 | ||
47 | struct packet_header { | |
48 | uint32_t magic; | |
49 | uint8_t uuid[16]; | |
50 | uint32_t checksum; | |
51 | uint32_t content_size; | |
52 | uint32_t packet_size; | |
53 | uint8_t compression_scheme; | |
54 | uint8_t encryption_scheme; | |
55 | uint8_t checksum_scheme; | |
56 | uint8_t major; | |
57 | uint8_t minor; | |
58 | } __attribute__((__packed__)); | |
59 | ||
60 | BT_HIDDEN | |
61 | bool ctf_metadata_decoder_is_packetized(FILE *fp, int *byte_order) | |
62 | { | |
63 | uint32_t magic; | |
64 | size_t len; | |
65 | int ret = 0; | |
66 | ||
67 | len = fread(&magic, sizeof(magic), 1, fp); | |
68 | if (len != 1) { | |
d6e20753 | 69 | BT_LOGD_STR("Cannot reade first metadata packet header: assuming the stream is not packetized."); |
1e649dff PP |
70 | goto end; |
71 | } | |
72 | ||
73 | if (byte_order) { | |
74 | if (magic == TSDL_MAGIC) { | |
75 | ret = 1; | |
76 | *byte_order = BYTE_ORDER; | |
77 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { | |
78 | ret = 1; | |
79 | *byte_order = BYTE_ORDER == BIG_ENDIAN ? | |
80 | LITTLE_ENDIAN : BIG_ENDIAN; | |
81 | } | |
82 | } | |
83 | ||
84 | end: | |
85 | rewind(fp); | |
86 | ||
87 | return ret; | |
88 | } | |
89 | ||
90 | static | |
91 | bool is_version_valid(unsigned int major, unsigned int minor) | |
92 | { | |
93 | return major == 1 && minor == 8; | |
94 | } | |
95 | ||
96 | static | |
97 | int decode_packet(struct ctf_metadata_decoder *mdec, FILE *in_fp, FILE *out_fp, | |
98 | int byte_order) | |
99 | { | |
100 | struct packet_header header; | |
101 | size_t readlen, writelen, toread; | |
102 | uint8_t buf[512 + 1]; /* + 1 for debug-mode \0 */ | |
103 | int ret = 0; | |
d6e20753 | 104 | const long offset = ftell(in_fp); |
1e649dff | 105 | |
d6e20753 PP |
106 | BT_LOGV("Decoding metadata packet: mdec-addr=%p, offset=%ld", |
107 | mdec, offset); | |
1e649dff PP |
108 | readlen = fread(&header, sizeof(header), 1, in_fp); |
109 | if (feof(in_fp) != 0) { | |
d6e20753 | 110 | BT_LOGV("Reached end of file: offset=%ld", ftell(in_fp)); |
1e649dff PP |
111 | goto end; |
112 | } | |
113 | if (readlen < 1) { | |
d6e20753 | 114 | BT_LOGV("Cannot decode metadata packet: offset=%ld", offset); |
1e649dff PP |
115 | goto error; |
116 | } | |
117 | ||
118 | if (byte_order != BYTE_ORDER) { | |
119 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
120 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
121 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
122 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
123 | } | |
124 | ||
125 | if (header.compression_scheme) { | |
d6e20753 PP |
126 | BT_LOGE("Metadata packet compression is not supported as of this version: " |
127 | "compression-scheme=%u, offset=%ld", | |
128 | (unsigned int) header.compression_scheme, offset); | |
1e649dff PP |
129 | goto error; |
130 | } | |
131 | ||
132 | if (header.encryption_scheme) { | |
d6e20753 PP |
133 | BT_LOGE("Metadata packet encryption is not supported as of this version: " |
134 | "encryption-scheme=%u, offset=%ld", | |
135 | (unsigned int) header.encryption_scheme, offset); | |
1e649dff PP |
136 | goto error; |
137 | } | |
138 | ||
139 | if (header.checksum || header.checksum_scheme) { | |
d6e20753 PP |
140 | BT_LOGE("Metadata packet checksum verification is not supported as of this version: " |
141 | "checksum-scheme=%u, checksum=%x, offset=%ld", | |
142 | (unsigned int) header.checksum_scheme, header.checksum, | |
143 | offset); | |
1e649dff PP |
144 | goto error; |
145 | } | |
146 | ||
147 | if (!is_version_valid(header.major, header.minor)) { | |
d6e20753 PP |
148 | BT_LOGE("Invalid metadata packet version: " |
149 | "version=%u.%u, offset=%ld", | |
150 | header.major, header.minor, offset); | |
1e649dff PP |
151 | goto error; |
152 | } | |
153 | ||
154 | /* Set expected trace UUID if not set; otherwise validate it */ | |
155 | if (mdec) { | |
156 | if (!mdec->is_uuid_set) { | |
157 | memcpy(mdec->uuid, header.uuid, sizeof(header.uuid)); | |
158 | mdec->is_uuid_set = true; | |
159 | } else if (bt_uuid_compare(header.uuid, mdec->uuid)) { | |
d6e20753 PP |
160 | BT_LOGE("Metadata UUID mismatch between packets of the same stream: " |
161 | "packet-uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\", " | |
162 | "expected-uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\", " | |
163 | "offset=%ld", | |
164 | (unsigned int) header.uuid[0], | |
165 | (unsigned int) header.uuid[1], | |
166 | (unsigned int) header.uuid[2], | |
167 | (unsigned int) header.uuid[3], | |
168 | (unsigned int) header.uuid[4], | |
169 | (unsigned int) header.uuid[5], | |
170 | (unsigned int) header.uuid[6], | |
171 | (unsigned int) header.uuid[7], | |
172 | (unsigned int) header.uuid[8], | |
173 | (unsigned int) header.uuid[9], | |
174 | (unsigned int) header.uuid[10], | |
175 | (unsigned int) header.uuid[11], | |
176 | (unsigned int) header.uuid[12], | |
177 | (unsigned int) header.uuid[13], | |
178 | (unsigned int) header.uuid[14], | |
179 | (unsigned int) header.uuid[15], | |
180 | (unsigned int) mdec->uuid[0], | |
181 | (unsigned int) mdec->uuid[1], | |
182 | (unsigned int) mdec->uuid[2], | |
183 | (unsigned int) mdec->uuid[3], | |
184 | (unsigned int) mdec->uuid[4], | |
185 | (unsigned int) mdec->uuid[5], | |
186 | (unsigned int) mdec->uuid[6], | |
187 | (unsigned int) mdec->uuid[7], | |
188 | (unsigned int) mdec->uuid[8], | |
189 | (unsigned int) mdec->uuid[9], | |
190 | (unsigned int) mdec->uuid[10], | |
191 | (unsigned int) mdec->uuid[11], | |
192 | (unsigned int) mdec->uuid[12], | |
193 | (unsigned int) mdec->uuid[13], | |
194 | (unsigned int) mdec->uuid[14], | |
195 | (unsigned int) mdec->uuid[15], | |
196 | offset); | |
1e649dff PP |
197 | goto error; |
198 | } | |
199 | } | |
200 | ||
201 | if ((header.content_size / CHAR_BIT) < sizeof(header)) { | |
d6e20753 PP |
202 | BT_LOGE("Bad metadata packet content size: content-size=%u, " |
203 | "offset=%ld", header.content_size, offset); | |
1e649dff PP |
204 | goto error; |
205 | } | |
206 | ||
207 | toread = header.content_size / CHAR_BIT - sizeof(header); | |
208 | ||
209 | for (;;) { | |
210 | readlen = fread(buf, sizeof(uint8_t), | |
211 | MIN(sizeof(buf) - 1, toread), in_fp); | |
212 | if (ferror(in_fp)) { | |
d6e20753 PP |
213 | BT_LOGE("Cannot read metadata packet buffer: " |
214 | "offset=%ld, read-size=%u", | |
215 | ftell(in_fp), (unsigned int) readlen); | |
1e649dff PP |
216 | goto error; |
217 | } | |
218 | ||
219 | writelen = fwrite(buf, sizeof(uint8_t), readlen, out_fp); | |
220 | if (writelen < readlen || ferror(out_fp)) { | |
d6e20753 PP |
221 | BT_LOGE("Cannot write decoded metadata text to buffer: " |
222 | "read-offset=%ld, write-size=%u", | |
223 | ftell(in_fp), (unsigned int) readlen); | |
1e649dff PP |
224 | goto error; |
225 | } | |
226 | ||
227 | toread -= readlen; | |
228 | if (toread == 0) { | |
229 | int fseek_ret; | |
230 | ||
231 | /* Read leftover padding */ | |
232 | toread = (header.packet_size - header.content_size) / | |
233 | CHAR_BIT; | |
234 | fseek_ret = fseek(in_fp, toread, SEEK_CUR); | |
235 | if (fseek_ret < 0) { | |
d6e20753 | 236 | BT_LOGW_STR("Missing padding at the end of the metadata stream."); |
1e649dff | 237 | } |
1e649dff PP |
238 | break; |
239 | } | |
240 | } | |
241 | ||
242 | goto end; | |
243 | ||
244 | error: | |
245 | ret = -1; | |
246 | ||
247 | end: | |
248 | return ret; | |
249 | } | |
250 | ||
251 | static | |
252 | int ctf_metadata_decoder_packetized_file_stream_to_buf_with_mdec( | |
253 | struct ctf_metadata_decoder *mdec, FILE *fp, | |
254 | char **buf, int byte_order) | |
255 | { | |
256 | FILE *out_fp; | |
257 | size_t size; | |
258 | int ret = 0; | |
259 | int tret; | |
260 | size_t packet_index = 0; | |
261 | ||
262 | out_fp = bt_open_memstream(buf, &size); | |
263 | if (out_fp == NULL) { | |
d6e20753 PP |
264 | BT_LOGE("Cannot open memory stream: %s: mdec-addr=%p", |
265 | strerror(errno), mdec); | |
1e649dff PP |
266 | goto error; |
267 | } | |
268 | ||
269 | for (;;) { | |
270 | if (feof(fp) != 0) { | |
271 | break; | |
272 | } | |
273 | ||
274 | tret = decode_packet(mdec, fp, out_fp, byte_order); | |
275 | if (tret) { | |
d6e20753 PP |
276 | BT_LOGE("Cannot decode packet: index=%zu, mdec-addr=%p", |
277 | packet_index, mdec); | |
1e649dff PP |
278 | goto error; |
279 | } | |
280 | ||
281 | packet_index++; | |
282 | } | |
283 | ||
284 | /* Make sure the whole string ends with a null character */ | |
285 | tret = fputc('\0', out_fp); | |
286 | if (tret == EOF) { | |
d6e20753 PP |
287 | BT_LOGE("Cannot append '\\0' to the decoded metadata buffer: " |
288 | "mdec-addr=%p", mdec); | |
1e649dff PP |
289 | goto error; |
290 | } | |
291 | ||
292 | /* Close stream, which also flushes the buffer */ | |
293 | ret = bt_close_memstream(buf, &size, out_fp); | |
294 | if (ret < 0) { | |
d6e20753 PP |
295 | BT_LOGE("Cannot close memory stream: %s: mdec-addr=%p", |
296 | strerror(errno), mdec); | |
1e649dff PP |
297 | goto error; |
298 | } | |
299 | ||
300 | goto end; | |
301 | ||
302 | error: | |
303 | ret = -1; | |
304 | ||
305 | if (out_fp) { | |
d6e20753 PP |
306 | if (bt_close_memstream(buf, &size, out_fp)) { |
307 | BT_LOGE("Cannot close memory stream: %s: mdec-addr=%p", | |
308 | strerror(errno), mdec); | |
309 | } | |
1e649dff PP |
310 | } |
311 | ||
312 | if (*buf) { | |
313 | free(*buf); | |
8318bbaa | 314 | *buf = NULL; |
1e649dff PP |
315 | } |
316 | ||
317 | end: | |
318 | return ret; | |
319 | } | |
320 | ||
321 | BT_HIDDEN | |
322 | int ctf_metadata_decoder_packetized_file_stream_to_buf( | |
323 | FILE *fp, char **buf, int byte_order) | |
324 | { | |
325 | return ctf_metadata_decoder_packetized_file_stream_to_buf_with_mdec( | |
326 | NULL, fp, buf, byte_order); | |
327 | } | |
328 | ||
329 | BT_HIDDEN | |
55314f2a | 330 | struct ctf_metadata_decoder *ctf_metadata_decoder_create( |
a2a54545 PP |
331 | const struct ctf_metadata_decoder_config *config, |
332 | const char *name) | |
1e649dff PP |
333 | { |
334 | struct ctf_metadata_decoder *mdec = | |
335 | g_new0(struct ctf_metadata_decoder, 1); | |
a2a54545 PP |
336 | struct ctf_metadata_decoder_config default_config = { |
337 | .clock_class_offset_s = 0, | |
338 | .clock_class_offset_ns = 0, | |
a2a54545 PP |
339 | }; |
340 | ||
341 | if (!config) { | |
342 | config = &default_config; | |
343 | } | |
1e649dff | 344 | |
d6e20753 | 345 | BT_LOGD("Creating CTF metadata decoder: " |
a2a54545 | 346 | "clock-class-offset-s=%" PRId64 ", " |
7bf5af54 | 347 | "clock-class-offset-ns=%" PRId64 ", name=\"%s\"", |
a2a54545 | 348 | config->clock_class_offset_s, config->clock_class_offset_ns, |
7bf5af54 | 349 | name); |
d6e20753 | 350 | |
1e649dff | 351 | if (!mdec) { |
d6e20753 | 352 | BT_LOGE_STR("Failed to allocate one CTF metadata decoder."); |
1e649dff PP |
353 | goto end; |
354 | } | |
355 | ||
a2a54545 PP |
356 | mdec->config = *config; |
357 | mdec->visitor = ctf_visitor_generate_ir_create(config, name); | |
1e649dff | 358 | if (!mdec->visitor) { |
d6e20753 PP |
359 | BT_LOGE("Failed to create a CTF IR metadata AST visitor: " |
360 | "mdec-addr=%p", mdec); | |
1e649dff PP |
361 | ctf_metadata_decoder_destroy(mdec); |
362 | mdec = NULL; | |
363 | goto end; | |
364 | } | |
365 | ||
a2a54545 PP |
366 | BT_LOGD("Creating CTF metadata decoder: " |
367 | "clock-class-offset-s=%" PRId64 ", " | |
368 | "clock-class-offset-ns=%" PRId64 ", " | |
7bf5af54 | 369 | "name=\"%s\", addr=%p", |
a2a54545 | 370 | config->clock_class_offset_s, config->clock_class_offset_ns, |
7bf5af54 | 371 | name, mdec); |
d6e20753 | 372 | |
1e649dff PP |
373 | end: |
374 | return mdec; | |
375 | } | |
376 | ||
377 | BT_HIDDEN | |
378 | void ctf_metadata_decoder_destroy(struct ctf_metadata_decoder *mdec) | |
379 | { | |
380 | if (!mdec) { | |
381 | return; | |
382 | } | |
383 | ||
d6e20753 | 384 | BT_LOGD("Destroying CTF metadata decoder: addr=%p", mdec); |
1e649dff PP |
385 | ctf_visitor_generate_ir_destroy(mdec->visitor); |
386 | g_free(mdec); | |
387 | } | |
388 | ||
389 | BT_HIDDEN | |
390 | enum ctf_metadata_decoder_status ctf_metadata_decoder_decode( | |
391 | struct ctf_metadata_decoder *mdec, FILE *fp) | |
392 | { | |
393 | enum ctf_metadata_decoder_status status = | |
394 | CTF_METADATA_DECODER_STATUS_OK; | |
395 | int ret; | |
396 | struct ctf_scanner *scanner = NULL; | |
397 | char *buf = NULL; | |
398 | bool close_fp = false; | |
399 | ||
400 | assert(mdec); | |
401 | ||
402 | if (ctf_metadata_decoder_is_packetized(fp, &mdec->bo)) { | |
d6e20753 | 403 | BT_LOGD("Metadata stream is packetized: mdec-addr=%p", mdec); |
1e649dff PP |
404 | ret = ctf_metadata_decoder_packetized_file_stream_to_buf_with_mdec( |
405 | mdec, fp, &buf, mdec->bo); | |
406 | if (ret) { | |
d6e20753 PP |
407 | BT_LOGE("Cannot decode packetized metadata packets to metadata text: " |
408 | "mdec-addr=%p, ret=%d", mdec, ret); | |
1e649dff PP |
409 | status = CTF_METADATA_DECODER_STATUS_ERROR; |
410 | goto end; | |
411 | } | |
412 | ||
7cdc2bab MD |
413 | if (strlen(buf) == 0) { |
414 | /* An empty metadata packet is OK. */ | |
415 | goto end; | |
416 | } | |
417 | ||
1e649dff PP |
418 | /* Convert the real file pointer to a memory file pointer */ |
419 | fp = bt_fmemopen(buf, strlen(buf), "rb"); | |
420 | close_fp = true; | |
421 | if (!fp) { | |
d6e20753 PP |
422 | BT_LOGE("Cannot memory-open metadata buffer: %s: " |
423 | "mdec-addr=%p", strerror(errno), mdec); | |
1e649dff PP |
424 | status = CTF_METADATA_DECODER_STATUS_ERROR; |
425 | goto end; | |
426 | } | |
427 | } else { | |
428 | unsigned int major, minor; | |
429 | ssize_t nr_items; | |
430 | const long init_pos = ftell(fp); | |
431 | ||
d6e20753 | 432 | BT_LOGD("Metadata stream is plain text: mdec-addr=%p", mdec); |
1e649dff PP |
433 | |
434 | /* Check text-only metadata header and version */ | |
435 | nr_items = fscanf(fp, "/* CTF %10u.%10u", &major, &minor); | |
436 | if (nr_items < 2) { | |
d6e20753 PP |
437 | BT_LOGW("Missing \"/* CTF major.minor\" signature in plain text metadata file stream: " |
438 | "mdec-addr=%p", mdec); | |
1e649dff PP |
439 | } |
440 | ||
d6e20753 | 441 | BT_LOGD("Found metadata stream version in signature: version=%u.%u", major, minor); |
1e649dff PP |
442 | |
443 | if (!is_version_valid(major, minor)) { | |
d6e20753 PP |
444 | BT_LOGE("Invalid metadata version found in plain text signature: " |
445 | "version=%u.%u, mdec-addr=%p", major, minor, | |
446 | mdec); | |
1e649dff PP |
447 | status = CTF_METADATA_DECODER_STATUS_INVAL_VERSION; |
448 | goto end; | |
449 | } | |
450 | ||
451 | if (fseek(fp, init_pos, SEEK_SET)) { | |
d6e20753 PP |
452 | BT_LOGE("Cannot seek metadata file stream to initial position: %s: " |
453 | "mdec-addr=%p", strerror(errno), mdec); | |
1e649dff PP |
454 | status = CTF_METADATA_DECODER_STATUS_ERROR; |
455 | goto end; | |
456 | } | |
457 | } | |
458 | ||
f73367f8 PP |
459 | if (BT_LOG_ON_VERBOSE) { |
460 | yydebug = 1; | |
461 | } | |
462 | ||
1e649dff PP |
463 | /* Allocate a scanner and append the metadata text content */ |
464 | scanner = ctf_scanner_alloc(); | |
465 | if (!scanner) { | |
d6e20753 PP |
466 | BT_LOGE("Cannot allocate a metadata lexical scanner: " |
467 | "mdec-addr=%p", mdec); | |
1e649dff PP |
468 | status = CTF_METADATA_DECODER_STATUS_ERROR; |
469 | goto end; | |
470 | } | |
471 | ||
472 | assert(fp); | |
473 | ret = ctf_scanner_append_ast(scanner, fp); | |
474 | if (ret) { | |
d6e20753 PP |
475 | BT_LOGE("Cannot create the metadata AST out of the metadata text: " |
476 | "mdec-addr=%p", mdec); | |
1e649dff PP |
477 | status = CTF_METADATA_DECODER_STATUS_INCOMPLETE; |
478 | goto end; | |
479 | } | |
480 | ||
55314f2a | 481 | ret = ctf_visitor_semantic_check(0, &scanner->ast->root); |
1e649dff | 482 | if (ret) { |
d6e20753 PP |
483 | BT_LOGE("Validation of the metadata semantics failed: " |
484 | "mdec-addr=%p", mdec); | |
1e649dff PP |
485 | status = CTF_METADATA_DECODER_STATUS_ERROR; |
486 | goto end; | |
487 | } | |
488 | ||
489 | ret = ctf_visitor_generate_ir_visit_node(mdec->visitor, | |
490 | &scanner->ast->root); | |
491 | switch (ret) { | |
492 | case 0: | |
493 | /* Success */ | |
494 | break; | |
495 | case -EINCOMPLETE: | |
d6e20753 PP |
496 | BT_LOGD("While visiting metadata AST: incomplete data: " |
497 | "mdec-addr=%p", mdec); | |
1e649dff PP |
498 | status = CTF_METADATA_DECODER_STATUS_INCOMPLETE; |
499 | goto end; | |
500 | default: | |
d6e20753 PP |
501 | BT_LOGE("Failed to visit AST node to create CTF IR objects: " |
502 | "mdec-addr=%p, ret=%d", mdec, ret); | |
1e649dff PP |
503 | status = CTF_METADATA_DECODER_STATUS_IR_VISITOR_ERROR; |
504 | goto end; | |
505 | } | |
506 | ||
507 | end: | |
508 | if (scanner) { | |
509 | ctf_scanner_free(scanner); | |
510 | } | |
511 | ||
f73367f8 PP |
512 | yydebug = 0; |
513 | ||
1e649dff PP |
514 | if (fp && close_fp) { |
515 | if (fclose(fp)) { | |
d6e20753 PP |
516 | BT_LOGE("Cannot close metadata file stream: " |
517 | "mdec-addr=%p", mdec); | |
1e649dff PP |
518 | } |
519 | } | |
520 | ||
521 | if (buf) { | |
522 | free(buf); | |
523 | } | |
524 | ||
525 | return status; | |
526 | } | |
527 | ||
528 | BT_HIDDEN | |
529 | struct bt_ctf_trace *ctf_metadata_decoder_get_trace( | |
530 | struct ctf_metadata_decoder *mdec) | |
531 | { | |
532 | return ctf_visitor_generate_ir_get_trace(mdec->visitor); | |
533 | } |