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1/*
2 * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com>
3 *
4 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License (not later!)
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 */
21#define _FILE_OFFSET_BITS 64
22
23#include <dirent.h>
24#include <stdio.h>
25#include <stdlib.h>
26#include <string.h>
27#include <getopt.h>
28#include <stdarg.h>
29#include <sys/types.h>
30#include <sys/stat.h>
31#include <sys/wait.h>
32#include <sys/mman.h>
33#include <pthread.h>
34#include <fcntl.h>
35#include <unistd.h>
36#include <errno.h>
37
38#include "../perf.h"
39#include "util.h"
40#include "trace-event.h"
41
42static int input_fd;
43
44static int read_page;
45
46int file_bigendian;
47int host_bigendian;
48static int long_size;
49
50static unsigned long page_size;
51
52static ssize_t calc_data_size;
53static bool repipe;
54
55static void *malloc_or_die(int size)
56{
57 void *ret;
58
59 ret = malloc(size);
60 if (!ret)
61 die("malloc");
62 return ret;
63}
64
65static int do_read(int fd, void *buf, int size)
66{
67 int rsize = size;
68
69 while (size) {
70 int ret = read(fd, buf, size);
71
72 if (ret <= 0)
73 return -1;
74
75 if (repipe) {
76 int retw = write(STDOUT_FILENO, buf, ret);
77
78 if (retw <= 0 || retw != ret)
79 die("repiping input file");
80 }
81
82 size -= ret;
83 buf += ret;
84 }
85
86 return rsize;
87}
88
89static int read_or_die(void *data, int size)
90{
91 int r;
92
93 r = do_read(input_fd, data, size);
94 if (r <= 0)
95 die("reading input file (size expected=%d received=%d)",
96 size, r);
97
98 if (calc_data_size)
99 calc_data_size += r;
100
101 return r;
102}
103
104/* If it fails, the next read will report it */
105static void skip(int size)
106{
107 char buf[BUFSIZ];
108 int r;
109
110 while (size) {
111 r = size > BUFSIZ ? BUFSIZ : size;
112 read_or_die(buf, r);
113 size -= r;
114 };
115}
116
117static unsigned int read4(void)
118{
119 unsigned int data;
120
121 read_or_die(&data, 4);
122 return __data2host4(perf_pevent, data);
123}
124
125static unsigned long long read8(void)
126{
127 unsigned long long data;
128
129 read_or_die(&data, 8);
130 return __data2host8(perf_pevent, data);
131}
132
133static char *read_string(void)
134{
135 char buf[BUFSIZ];
136 char *str = NULL;
137 int size = 0;
138 off_t r;
139 char c;
140
141 for (;;) {
142 r = read(input_fd, &c, 1);
143 if (r < 0)
144 die("reading input file");
145
146 if (!r)
147 die("no data");
148
149 if (repipe) {
150 int retw = write(STDOUT_FILENO, &c, 1);
151
152 if (retw <= 0 || retw != r)
153 die("repiping input file string");
154 }
155
156 buf[size++] = c;
157
158 if (!c)
159 break;
160 }
161
162 if (calc_data_size)
163 calc_data_size += size;
164
165 str = malloc_or_die(size);
166 memcpy(str, buf, size);
167
168 return str;
169}
170
171static void read_proc_kallsyms(void)
172{
173 unsigned int size;
174 char *buf;
175
176 size = read4();
177 if (!size)
178 return;
179
180 buf = malloc_or_die(size + 1);
181 read_or_die(buf, size);
182 buf[size] = '\0';
183
184 parse_proc_kallsyms(buf, size);
185
186 free(buf);
187}
188
189static void read_ftrace_printk(void)
190{
191 unsigned int size;
192 char *buf;
193
194 size = read4();
195 if (!size)
196 return;
197
198 buf = malloc_or_die(size);
199 read_or_die(buf, size);
200
201 parse_ftrace_printk(buf, size);
202
203 free(buf);
204}
205
206static void read_header_files(void)
207{
208 unsigned long long size;
209 char *header_event;
210 char buf[BUFSIZ];
211
212 read_or_die(buf, 12);
213
214 if (memcmp(buf, "header_page", 12) != 0)
215 die("did not read header page");
216
217 size = read8();
218 skip(size);
219
220 /*
221 * The size field in the page is of type long,
222 * use that instead, since it represents the kernel.
223 */
224 long_size = header_page_size_size;
225
226 read_or_die(buf, 13);
227 if (memcmp(buf, "header_event", 13) != 0)
228 die("did not read header event");
229
230 size = read8();
231 header_event = malloc_or_die(size);
232 read_or_die(header_event, size);
233 free(header_event);
234}
235
236static void read_ftrace_file(unsigned long long size)
237{
238 char *buf;
239
240 buf = malloc_or_die(size);
241 read_or_die(buf, size);
242 parse_ftrace_file(buf, size);
243 free(buf);
244}
245
246static void read_event_file(char *sys, unsigned long long size)
247{
248 char *buf;
249
250 buf = malloc_or_die(size);
251 read_or_die(buf, size);
252 parse_event_file(buf, size, sys);
253 free(buf);
254}
255
256static void read_ftrace_files(void)
257{
258 unsigned long long size;
259 int count;
260 int i;
261
262 count = read4();
263
264 for (i = 0; i < count; i++) {
265 size = read8();
266 read_ftrace_file(size);
267 }
268}
269
270static void read_event_files(void)
271{
272 unsigned long long size;
273 char *sys;
274 int systems;
275 int count;
276 int i,x;
277
278 systems = read4();
279
280 for (i = 0; i < systems; i++) {
281 sys = read_string();
282
283 count = read4();
284 for (x=0; x < count; x++) {
285 size = read8();
286 read_event_file(sys, size);
287 }
288 }
289}
290
291struct cpu_data {
292 unsigned long long offset;
293 unsigned long long size;
294 unsigned long long timestamp;
295 struct pevent_record *next;
296 char *page;
297 int cpu;
298 int index;
299 int page_size;
300};
301
302static struct cpu_data *cpu_data;
303
304static void update_cpu_data_index(int cpu)
305{
306 cpu_data[cpu].offset += page_size;
307 cpu_data[cpu].size -= page_size;
308 cpu_data[cpu].index = 0;
309}
310
311static void get_next_page(int cpu)
312{
313 off_t save_seek;
314 off_t ret;
315
316 if (!cpu_data[cpu].page)
317 return;
318
319 if (read_page) {
320 if (cpu_data[cpu].size <= page_size) {
321 free(cpu_data[cpu].page);
322 cpu_data[cpu].page = NULL;
323 return;
324 }
325
326 update_cpu_data_index(cpu);
327
328 /* other parts of the code may expect the pointer to not move */
329 save_seek = lseek(input_fd, 0, SEEK_CUR);
330
331 ret = lseek(input_fd, cpu_data[cpu].offset, SEEK_SET);
332 if (ret == (off_t)-1)
333 die("failed to lseek");
334 ret = read(input_fd, cpu_data[cpu].page, page_size);
335 if (ret < 0)
336 die("failed to read page");
337
338 /* reset the file pointer back */
339 lseek(input_fd, save_seek, SEEK_SET);
340
341 return;
342 }
343
344 munmap(cpu_data[cpu].page, page_size);
345 cpu_data[cpu].page = NULL;
346
347 if (cpu_data[cpu].size <= page_size)
348 return;
349
350 update_cpu_data_index(cpu);
351
352 cpu_data[cpu].page = mmap(NULL, page_size, PROT_READ, MAP_PRIVATE,
353 input_fd, cpu_data[cpu].offset);
354 if (cpu_data[cpu].page == MAP_FAILED)
355 die("failed to mmap cpu %d at offset 0x%llx",
356 cpu, cpu_data[cpu].offset);
357}
358
359static unsigned int type_len4host(unsigned int type_len_ts)
360{
361 if (file_bigendian)
362 return (type_len_ts >> 27) & ((1 << 5) - 1);
363 else
364 return type_len_ts & ((1 << 5) - 1);
365}
366
367static unsigned int ts4host(unsigned int type_len_ts)
368{
369 if (file_bigendian)
370 return type_len_ts & ((1 << 27) - 1);
371 else
372 return type_len_ts >> 5;
373}
374
375static int calc_index(void *ptr, int cpu)
376{
377 return (unsigned long)ptr - (unsigned long)cpu_data[cpu].page;
378}
379
380struct pevent_record *trace_peek_data(int cpu)
381{
382 struct pevent_record *data;
383 void *page = cpu_data[cpu].page;
384 int idx = cpu_data[cpu].index;
385 void *ptr = page + idx;
386 unsigned long long extend;
387 unsigned int type_len_ts;
388 unsigned int type_len;
389 unsigned int delta;
390 unsigned int length = 0;
391
392 if (cpu_data[cpu].next)
393 return cpu_data[cpu].next;
394
395 if (!page)
396 return NULL;
397
398 if (!idx) {
399 /* FIXME: handle header page */
400 if (header_page_ts_size != 8)
401 die("expected a long long type for timestamp");
402 cpu_data[cpu].timestamp = data2host8(perf_pevent, ptr);
403 ptr += 8;
404 switch (header_page_size_size) {
405 case 4:
406 cpu_data[cpu].page_size = data2host4(perf_pevent, ptr);
407 ptr += 4;
408 break;
409 case 8:
410 cpu_data[cpu].page_size = data2host8(perf_pevent, ptr);
411 ptr += 8;
412 break;
413 default:
414 die("bad long size");
415 }
416 ptr = cpu_data[cpu].page + header_page_data_offset;
417 }
418
419read_again:
420 idx = calc_index(ptr, cpu);
421
422 if (idx >= cpu_data[cpu].page_size) {
423 get_next_page(cpu);
424 return trace_peek_data(cpu);
425 }
426
427 type_len_ts = data2host4(perf_pevent, ptr);
428 ptr += 4;
429
430 type_len = type_len4host(type_len_ts);
431 delta = ts4host(type_len_ts);
432
433 switch (type_len) {
434 case RINGBUF_TYPE_PADDING:
435 if (!delta)
436 die("error, hit unexpected end of page");
437 length = data2host4(perf_pevent, ptr);
438 ptr += 4;
439 length *= 4;
440 ptr += length;
441 goto read_again;
442
443 case RINGBUF_TYPE_TIME_EXTEND:
444 extend = data2host4(perf_pevent, ptr);
445 ptr += 4;
446 extend <<= TS_SHIFT;
447 extend += delta;
448 cpu_data[cpu].timestamp += extend;
449 goto read_again;
450
451 case RINGBUF_TYPE_TIME_STAMP:
452 ptr += 12;
453 break;
454 case 0:
455 length = data2host4(perf_pevent, ptr);
456 ptr += 4;
457 die("here! length=%d", length);
458 break;
459 default:
460 length = type_len * 4;
461 break;
462 }
463
464 cpu_data[cpu].timestamp += delta;
465
466 data = malloc_or_die(sizeof(*data));
467 memset(data, 0, sizeof(*data));
468
469 data->ts = cpu_data[cpu].timestamp;
470 data->size = length;
471 data->data = ptr;
472 ptr += length;
473
474 cpu_data[cpu].index = calc_index(ptr, cpu);
475 cpu_data[cpu].next = data;
476
477 return data;
478}
479
480struct pevent_record *trace_read_data(int cpu)
481{
482 struct pevent_record *data;
483
484 data = trace_peek_data(cpu);
485 cpu_data[cpu].next = NULL;
486
487 return data;
488}
489
490ssize_t trace_report(int fd, bool __repipe)
491{
492 char buf[BUFSIZ];
493 char test[] = { 23, 8, 68 };
494 char *version;
495 int show_version = 0;
496 int show_funcs = 0;
497 int show_printk = 0;
498 ssize_t size;
499
500 calc_data_size = 1;
501 repipe = __repipe;
502
503 input_fd = fd;
504
505 read_or_die(buf, 3);
506 if (memcmp(buf, test, 3) != 0)
507 die("no trace data in the file");
508
509 read_or_die(buf, 7);
510 if (memcmp(buf, "tracing", 7) != 0)
511 die("not a trace file (missing 'tracing' tag)");
512
513 version = read_string();
514 if (show_version)
515 printf("version = %s\n", version);
516 free(version);
517
518 read_or_die(buf, 1);
519 file_bigendian = buf[0];
520 host_bigendian = bigendian();
521
522 read_trace_init(file_bigendian, host_bigendian);
523
524 read_or_die(buf, 1);
525 long_size = buf[0];
526
527 page_size = read4();
528
529 read_header_files();
530
531 read_ftrace_files();
532 read_event_files();
533 read_proc_kallsyms();
534 read_ftrace_printk();
535
536 size = calc_data_size - 1;
537 calc_data_size = 0;
538 repipe = false;
539
540 if (show_funcs) {
541 pevent_print_funcs(perf_pevent);
542 return size;
543 }
544 if (show_printk) {
545 pevent_print_printk(perf_pevent);
546 return size;
547 }
548
549 return size;
550}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com>
4 */
5#include <dirent.h>
6#include <stdio.h>
7#include <stdlib.h>
8#include <string.h>
9#include <stdarg.h>
10#include <sys/types.h>
11#include <sys/stat.h>
12#include <sys/wait.h>
13#include <sys/mman.h>
14#include <event-parse.h>
15#include <fcntl.h>
16#include <unistd.h>
17#include <errno.h>
18
19#include "trace-event.h"
20#include "debug.h"
21#include "util.h"
22
23static int input_fd;
24
25static ssize_t trace_data_size;
26static bool repipe;
27
28static int __do_read(int fd, void *buf, int size)
29{
30 int rsize = size;
31
32 while (size) {
33 int ret = read(fd, buf, size);
34
35 if (ret <= 0)
36 return -1;
37
38 if (repipe) {
39 int retw = write(STDOUT_FILENO, buf, ret);
40
41 if (retw <= 0 || retw != ret) {
42 pr_debug("repiping input file");
43 return -1;
44 }
45 }
46
47 size -= ret;
48 buf += ret;
49 }
50
51 return rsize;
52}
53
54static int do_read(void *data, int size)
55{
56 int r;
57
58 r = __do_read(input_fd, data, size);
59 if (r <= 0) {
60 pr_debug("reading input file (size expected=%d received=%d)",
61 size, r);
62 return -1;
63 }
64
65 trace_data_size += r;
66
67 return r;
68}
69
70/* If it fails, the next read will report it */
71static void skip(int size)
72{
73 char buf[BUFSIZ];
74 int r;
75
76 while (size) {
77 r = size > BUFSIZ ? BUFSIZ : size;
78 do_read(buf, r);
79 size -= r;
80 }
81}
82
83static unsigned int read4(struct tep_handle *pevent)
84{
85 unsigned int data;
86
87 if (do_read(&data, 4) < 0)
88 return 0;
89 return tep_read_number(pevent, &data, 4);
90}
91
92static unsigned long long read8(struct tep_handle *pevent)
93{
94 unsigned long long data;
95
96 if (do_read(&data, 8) < 0)
97 return 0;
98 return tep_read_number(pevent, &data, 8);
99}
100
101static char *read_string(void)
102{
103 char buf[BUFSIZ];
104 char *str = NULL;
105 int size = 0;
106 off_t r;
107 char c;
108
109 for (;;) {
110 r = read(input_fd, &c, 1);
111 if (r < 0) {
112 pr_debug("reading input file");
113 goto out;
114 }
115
116 if (!r) {
117 pr_debug("no data");
118 goto out;
119 }
120
121 if (repipe) {
122 int retw = write(STDOUT_FILENO, &c, 1);
123
124 if (retw <= 0 || retw != r) {
125 pr_debug("repiping input file string");
126 goto out;
127 }
128 }
129
130 buf[size++] = c;
131
132 if (!c)
133 break;
134 }
135
136 trace_data_size += size;
137
138 str = malloc(size);
139 if (str)
140 memcpy(str, buf, size);
141out:
142 return str;
143}
144
145static int read_proc_kallsyms(struct tep_handle *pevent)
146{
147 unsigned int size;
148
149 size = read4(pevent);
150 if (!size)
151 return 0;
152 /*
153 * Just skip it, now that we configure libtraceevent to use the
154 * tools/perf/ symbol resolver.
155 *
156 * We need to skip it so that we can continue parsing old perf.data
157 * files, that contains this /proc/kallsyms payload.
158 *
159 * Newer perf.data files will have just the 4-bytes zeros "kallsyms
160 * payload", so that older tools can continue reading it and interpret
161 * it as "no kallsyms payload is present".
162 */
163 lseek(input_fd, size, SEEK_CUR);
164 trace_data_size += size;
165 return 0;
166}
167
168static int read_ftrace_printk(struct tep_handle *pevent)
169{
170 unsigned int size;
171 char *buf;
172
173 /* it can have 0 size */
174 size = read4(pevent);
175 if (!size)
176 return 0;
177
178 buf = malloc(size + 1);
179 if (buf == NULL)
180 return -1;
181
182 if (do_read(buf, size) < 0) {
183 free(buf);
184 return -1;
185 }
186
187 buf[size] = '\0';
188
189 parse_ftrace_printk(pevent, buf, size);
190
191 free(buf);
192 return 0;
193}
194
195static int read_header_files(struct tep_handle *pevent)
196{
197 unsigned long long size;
198 char *header_page;
199 char buf[BUFSIZ];
200 int ret = 0;
201
202 if (do_read(buf, 12) < 0)
203 return -1;
204
205 if (memcmp(buf, "header_page", 12) != 0) {
206 pr_debug("did not read header page");
207 return -1;
208 }
209
210 size = read8(pevent);
211
212 header_page = malloc(size);
213 if (header_page == NULL)
214 return -1;
215
216 if (do_read(header_page, size) < 0) {
217 pr_debug("did not read header page");
218 free(header_page);
219 return -1;
220 }
221
222 if (!tep_parse_header_page(pevent, header_page, size,
223 tep_get_long_size(pevent))) {
224 /*
225 * The commit field in the page is of type long,
226 * use that instead, since it represents the kernel.
227 */
228 tep_set_long_size(pevent, tep_get_header_page_size(pevent));
229 }
230 free(header_page);
231
232 if (do_read(buf, 13) < 0)
233 return -1;
234
235 if (memcmp(buf, "header_event", 13) != 0) {
236 pr_debug("did not read header event");
237 return -1;
238 }
239
240 size = read8(pevent);
241 skip(size);
242
243 return ret;
244}
245
246static int read_ftrace_file(struct tep_handle *pevent, unsigned long long size)
247{
248 int ret;
249 char *buf;
250
251 buf = malloc(size);
252 if (buf == NULL) {
253 pr_debug("memory allocation failure\n");
254 return -1;
255 }
256
257 ret = do_read(buf, size);
258 if (ret < 0) {
259 pr_debug("error reading ftrace file.\n");
260 goto out;
261 }
262
263 ret = parse_ftrace_file(pevent, buf, size);
264 if (ret < 0)
265 pr_debug("error parsing ftrace file.\n");
266out:
267 free(buf);
268 return ret;
269}
270
271static int read_event_file(struct tep_handle *pevent, char *sys,
272 unsigned long long size)
273{
274 int ret;
275 char *buf;
276
277 buf = malloc(size);
278 if (buf == NULL) {
279 pr_debug("memory allocation failure\n");
280 return -1;
281 }
282
283 ret = do_read(buf, size);
284 if (ret < 0)
285 goto out;
286
287 ret = parse_event_file(pevent, buf, size, sys);
288 if (ret < 0)
289 pr_debug("error parsing event file.\n");
290out:
291 free(buf);
292 return ret;
293}
294
295static int read_ftrace_files(struct tep_handle *pevent)
296{
297 unsigned long long size;
298 int count;
299 int i;
300 int ret;
301
302 count = read4(pevent);
303
304 for (i = 0; i < count; i++) {
305 size = read8(pevent);
306 ret = read_ftrace_file(pevent, size);
307 if (ret)
308 return ret;
309 }
310 return 0;
311}
312
313static int read_event_files(struct tep_handle *pevent)
314{
315 unsigned long long size;
316 char *sys;
317 int systems;
318 int count;
319 int i,x;
320 int ret;
321
322 systems = read4(pevent);
323
324 for (i = 0; i < systems; i++) {
325 sys = read_string();
326 if (sys == NULL)
327 return -1;
328
329 count = read4(pevent);
330
331 for (x=0; x < count; x++) {
332 size = read8(pevent);
333 ret = read_event_file(pevent, sys, size);
334 if (ret) {
335 free(sys);
336 return ret;
337 }
338 }
339 free(sys);
340 }
341 return 0;
342}
343
344static int read_saved_cmdline(struct tep_handle *pevent)
345{
346 unsigned long long size;
347 char *buf;
348 int ret;
349
350 /* it can have 0 size */
351 size = read8(pevent);
352 if (!size)
353 return 0;
354
355 buf = malloc(size + 1);
356 if (buf == NULL) {
357 pr_debug("memory allocation failure\n");
358 return -1;
359 }
360
361 ret = do_read(buf, size);
362 if (ret < 0) {
363 pr_debug("error reading saved cmdlines\n");
364 goto out;
365 }
366 buf[ret] = '\0';
367
368 parse_saved_cmdline(pevent, buf, size);
369 ret = 0;
370out:
371 free(buf);
372 return ret;
373}
374
375ssize_t trace_report(int fd, struct trace_event *tevent, bool __repipe)
376{
377 char buf[BUFSIZ];
378 char test[] = { 23, 8, 68 };
379 char *version;
380 int show_version = 0;
381 int show_funcs = 0;
382 int show_printk = 0;
383 ssize_t size = -1;
384 int file_bigendian;
385 int host_bigendian;
386 int file_long_size;
387 int file_page_size;
388 struct tep_handle *pevent = NULL;
389 int err;
390
391 repipe = __repipe;
392 input_fd = fd;
393
394 if (do_read(buf, 3) < 0)
395 return -1;
396 if (memcmp(buf, test, 3) != 0) {
397 pr_debug("no trace data in the file");
398 return -1;
399 }
400
401 if (do_read(buf, 7) < 0)
402 return -1;
403 if (memcmp(buf, "tracing", 7) != 0) {
404 pr_debug("not a trace file (missing 'tracing' tag)");
405 return -1;
406 }
407
408 version = read_string();
409 if (version == NULL)
410 return -1;
411 if (show_version)
412 printf("version = %s\n", version);
413
414 if (do_read(buf, 1) < 0) {
415 free(version);
416 return -1;
417 }
418 file_bigendian = buf[0];
419 host_bigendian = host_is_bigendian() ? 1 : 0;
420
421 if (trace_event__init(tevent)) {
422 pr_debug("trace_event__init failed");
423 goto out;
424 }
425
426 pevent = tevent->pevent;
427
428 tep_set_flag(pevent, TEP_NSEC_OUTPUT);
429 tep_set_file_bigendian(pevent, file_bigendian);
430 tep_set_local_bigendian(pevent, host_bigendian);
431
432 if (do_read(buf, 1) < 0)
433 goto out;
434 file_long_size = buf[0];
435
436 file_page_size = read4(pevent);
437 if (!file_page_size)
438 goto out;
439
440 tep_set_long_size(pevent, file_long_size);
441 tep_set_page_size(pevent, file_page_size);
442
443 err = read_header_files(pevent);
444 if (err)
445 goto out;
446 err = read_ftrace_files(pevent);
447 if (err)
448 goto out;
449 err = read_event_files(pevent);
450 if (err)
451 goto out;
452 err = read_proc_kallsyms(pevent);
453 if (err)
454 goto out;
455 err = read_ftrace_printk(pevent);
456 if (err)
457 goto out;
458 if (atof(version) >= 0.6) {
459 err = read_saved_cmdline(pevent);
460 if (err)
461 goto out;
462 }
463
464 size = trace_data_size;
465 repipe = false;
466
467 if (show_funcs) {
468 tep_print_funcs(pevent);
469 } else if (show_printk) {
470 tep_print_printk(pevent);
471 }
472
473 pevent = NULL;
474
475out:
476 if (pevent)
477 trace_event__cleanup(tevent);
478 free(version);
479 return size;
480}