]>
Commit | Line | Data |
---|---|---|
1 | // SPDX-License-Identifier: GPL-2.0-only | |
2 | /* | |
3 | * CTF writing support via babeltrace. | |
4 | * | |
5 | * Copyright (C) 2014, Jiri Olsa <jolsa@redhat.com> | |
6 | * Copyright (C) 2014, Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
7 | */ | |
8 | ||
9 | #include <errno.h> | |
10 | #include <inttypes.h> | |
11 | #include <linux/compiler.h> | |
12 | #include <linux/kernel.h> | |
13 | #include <linux/zalloc.h> | |
14 | #include <babeltrace/ctf-writer/writer.h> | |
15 | #include <babeltrace/ctf-writer/clock.h> | |
16 | #include <babeltrace/ctf-writer/stream.h> | |
17 | #include <babeltrace/ctf-writer/event.h> | |
18 | #include <babeltrace/ctf-writer/event-types.h> | |
19 | #include <babeltrace/ctf-writer/event-fields.h> | |
20 | #include <babeltrace/ctf-ir/utils.h> | |
21 | #include <babeltrace/ctf/events.h> | |
22 | #include <traceevent/event-parse.h> | |
23 | #include "asm/bug.h" | |
24 | #include "data-convert-bt.h" | |
25 | #include "session.h" | |
26 | #include "debug.h" | |
27 | #include "tool.h" | |
28 | #include "evlist.h" | |
29 | #include "evsel.h" | |
30 | #include "machine.h" | |
31 | #include "config.h" | |
32 | #include <linux/ctype.h> | |
33 | ||
34 | #define pr_N(n, fmt, ...) \ | |
35 | eprintf(n, debug_data_convert, fmt, ##__VA_ARGS__) | |
36 | ||
37 | #define pr(fmt, ...) pr_N(1, pr_fmt(fmt), ##__VA_ARGS__) | |
38 | #define pr2(fmt, ...) pr_N(2, pr_fmt(fmt), ##__VA_ARGS__) | |
39 | ||
40 | #define pr_time2(t, fmt, ...) pr_time_N(2, debug_data_convert, t, pr_fmt(fmt), ##__VA_ARGS__) | |
41 | ||
42 | struct evsel_priv { | |
43 | struct bt_ctf_event_class *event_class; | |
44 | }; | |
45 | ||
46 | #define MAX_CPUS 4096 | |
47 | ||
48 | struct ctf_stream { | |
49 | struct bt_ctf_stream *stream; | |
50 | int cpu; | |
51 | u32 count; | |
52 | }; | |
53 | ||
54 | struct ctf_writer { | |
55 | /* writer primitives */ | |
56 | struct bt_ctf_writer *writer; | |
57 | struct ctf_stream **stream; | |
58 | int stream_cnt; | |
59 | struct bt_ctf_stream_class *stream_class; | |
60 | struct bt_ctf_clock *clock; | |
61 | ||
62 | /* data types */ | |
63 | union { | |
64 | struct { | |
65 | struct bt_ctf_field_type *s64; | |
66 | struct bt_ctf_field_type *u64; | |
67 | struct bt_ctf_field_type *s32; | |
68 | struct bt_ctf_field_type *u32; | |
69 | struct bt_ctf_field_type *string; | |
70 | struct bt_ctf_field_type *u32_hex; | |
71 | struct bt_ctf_field_type *u64_hex; | |
72 | }; | |
73 | struct bt_ctf_field_type *array[6]; | |
74 | } data; | |
75 | struct bt_ctf_event_class *comm_class; | |
76 | struct bt_ctf_event_class *exit_class; | |
77 | struct bt_ctf_event_class *fork_class; | |
78 | struct bt_ctf_event_class *mmap_class; | |
79 | struct bt_ctf_event_class *mmap2_class; | |
80 | }; | |
81 | ||
82 | struct convert { | |
83 | struct perf_tool tool; | |
84 | struct ctf_writer writer; | |
85 | ||
86 | u64 events_size; | |
87 | u64 events_count; | |
88 | u64 non_sample_count; | |
89 | ||
90 | /* Ordered events configured queue size. */ | |
91 | u64 queue_size; | |
92 | }; | |
93 | ||
94 | static int value_set(struct bt_ctf_field_type *type, | |
95 | struct bt_ctf_event *event, | |
96 | const char *name, u64 val) | |
97 | { | |
98 | struct bt_ctf_field *field; | |
99 | bool sign = bt_ctf_field_type_integer_get_signed(type); | |
100 | int ret; | |
101 | ||
102 | field = bt_ctf_field_create(type); | |
103 | if (!field) { | |
104 | pr_err("failed to create a field %s\n", name); | |
105 | return -1; | |
106 | } | |
107 | ||
108 | if (sign) { | |
109 | ret = bt_ctf_field_signed_integer_set_value(field, val); | |
110 | if (ret) { | |
111 | pr_err("failed to set field value %s\n", name); | |
112 | goto err; | |
113 | } | |
114 | } else { | |
115 | ret = bt_ctf_field_unsigned_integer_set_value(field, val); | |
116 | if (ret) { | |
117 | pr_err("failed to set field value %s\n", name); | |
118 | goto err; | |
119 | } | |
120 | } | |
121 | ||
122 | ret = bt_ctf_event_set_payload(event, name, field); | |
123 | if (ret) { | |
124 | pr_err("failed to set payload %s\n", name); | |
125 | goto err; | |
126 | } | |
127 | ||
128 | pr2(" SET [%s = %" PRIu64 "]\n", name, val); | |
129 | ||
130 | err: | |
131 | bt_ctf_field_put(field); | |
132 | return ret; | |
133 | } | |
134 | ||
135 | #define __FUNC_VALUE_SET(_name, _val_type) \ | |
136 | static __maybe_unused int value_set_##_name(struct ctf_writer *cw, \ | |
137 | struct bt_ctf_event *event, \ | |
138 | const char *name, \ | |
139 | _val_type val) \ | |
140 | { \ | |
141 | struct bt_ctf_field_type *type = cw->data._name; \ | |
142 | return value_set(type, event, name, (u64) val); \ | |
143 | } | |
144 | ||
145 | #define FUNC_VALUE_SET(_name) __FUNC_VALUE_SET(_name, _name) | |
146 | ||
147 | FUNC_VALUE_SET(s32) | |
148 | FUNC_VALUE_SET(u32) | |
149 | FUNC_VALUE_SET(s64) | |
150 | FUNC_VALUE_SET(u64) | |
151 | __FUNC_VALUE_SET(u64_hex, u64) | |
152 | ||
153 | static int string_set_value(struct bt_ctf_field *field, const char *string); | |
154 | static __maybe_unused int | |
155 | value_set_string(struct ctf_writer *cw, struct bt_ctf_event *event, | |
156 | const char *name, const char *string) | |
157 | { | |
158 | struct bt_ctf_field_type *type = cw->data.string; | |
159 | struct bt_ctf_field *field; | |
160 | int ret = 0; | |
161 | ||
162 | field = bt_ctf_field_create(type); | |
163 | if (!field) { | |
164 | pr_err("failed to create a field %s\n", name); | |
165 | return -1; | |
166 | } | |
167 | ||
168 | ret = string_set_value(field, string); | |
169 | if (ret) { | |
170 | pr_err("failed to set value %s\n", name); | |
171 | goto err_put_field; | |
172 | } | |
173 | ||
174 | ret = bt_ctf_event_set_payload(event, name, field); | |
175 | if (ret) | |
176 | pr_err("failed to set payload %s\n", name); | |
177 | ||
178 | err_put_field: | |
179 | bt_ctf_field_put(field); | |
180 | return ret; | |
181 | } | |
182 | ||
183 | static struct bt_ctf_field_type* | |
184 | get_tracepoint_field_type(struct ctf_writer *cw, struct tep_format_field *field) | |
185 | { | |
186 | unsigned long flags = field->flags; | |
187 | ||
188 | if (flags & TEP_FIELD_IS_STRING) | |
189 | return cw->data.string; | |
190 | ||
191 | if (!(flags & TEP_FIELD_IS_SIGNED)) { | |
192 | /* unsigned long are mostly pointers */ | |
193 | if (flags & TEP_FIELD_IS_LONG || flags & TEP_FIELD_IS_POINTER) | |
194 | return cw->data.u64_hex; | |
195 | } | |
196 | ||
197 | if (flags & TEP_FIELD_IS_SIGNED) { | |
198 | if (field->size == 8) | |
199 | return cw->data.s64; | |
200 | else | |
201 | return cw->data.s32; | |
202 | } | |
203 | ||
204 | if (field->size == 8) | |
205 | return cw->data.u64; | |
206 | else | |
207 | return cw->data.u32; | |
208 | } | |
209 | ||
210 | static unsigned long long adjust_signedness(unsigned long long value_int, int size) | |
211 | { | |
212 | unsigned long long value_mask; | |
213 | ||
214 | /* | |
215 | * value_mask = (1 << (size * 8 - 1)) - 1. | |
216 | * Directly set value_mask for code readers. | |
217 | */ | |
218 | switch (size) { | |
219 | case 1: | |
220 | value_mask = 0x7fULL; | |
221 | break; | |
222 | case 2: | |
223 | value_mask = 0x7fffULL; | |
224 | break; | |
225 | case 4: | |
226 | value_mask = 0x7fffffffULL; | |
227 | break; | |
228 | case 8: | |
229 | /* | |
230 | * For 64 bit value, return it self. There is no need | |
231 | * to fill high bit. | |
232 | */ | |
233 | /* Fall through */ | |
234 | default: | |
235 | /* BUG! */ | |
236 | return value_int; | |
237 | } | |
238 | ||
239 | /* If it is a positive value, don't adjust. */ | |
240 | if ((value_int & (~0ULL - value_mask)) == 0) | |
241 | return value_int; | |
242 | ||
243 | /* Fill upper part of value_int with 1 to make it a negative long long. */ | |
244 | return (value_int & value_mask) | ~value_mask; | |
245 | } | |
246 | ||
247 | static int string_set_value(struct bt_ctf_field *field, const char *string) | |
248 | { | |
249 | char *buffer = NULL; | |
250 | size_t len = strlen(string), i, p; | |
251 | int err; | |
252 | ||
253 | for (i = p = 0; i < len; i++, p++) { | |
254 | if (isprint(string[i])) { | |
255 | if (!buffer) | |
256 | continue; | |
257 | buffer[p] = string[i]; | |
258 | } else { | |
259 | char numstr[5]; | |
260 | ||
261 | snprintf(numstr, sizeof(numstr), "\\x%02x", | |
262 | (unsigned int)(string[i]) & 0xff); | |
263 | ||
264 | if (!buffer) { | |
265 | buffer = zalloc(i + (len - i) * 4 + 2); | |
266 | if (!buffer) { | |
267 | pr_err("failed to set unprintable string '%s'\n", string); | |
268 | return bt_ctf_field_string_set_value(field, "UNPRINTABLE-STRING"); | |
269 | } | |
270 | if (i > 0) | |
271 | strncpy(buffer, string, i); | |
272 | } | |
273 | memcpy(buffer + p, numstr, 4); | |
274 | p += 3; | |
275 | } | |
276 | } | |
277 | ||
278 | if (!buffer) | |
279 | return bt_ctf_field_string_set_value(field, string); | |
280 | err = bt_ctf_field_string_set_value(field, buffer); | |
281 | free(buffer); | |
282 | return err; | |
283 | } | |
284 | ||
285 | static int add_tracepoint_field_value(struct ctf_writer *cw, | |
286 | struct bt_ctf_event_class *event_class, | |
287 | struct bt_ctf_event *event, | |
288 | struct perf_sample *sample, | |
289 | struct tep_format_field *fmtf) | |
290 | { | |
291 | struct bt_ctf_field_type *type; | |
292 | struct bt_ctf_field *array_field; | |
293 | struct bt_ctf_field *field; | |
294 | const char *name = fmtf->name; | |
295 | void *data = sample->raw_data; | |
296 | unsigned long flags = fmtf->flags; | |
297 | unsigned int n_items; | |
298 | unsigned int i; | |
299 | unsigned int offset; | |
300 | unsigned int len; | |
301 | int ret; | |
302 | ||
303 | name = fmtf->alias; | |
304 | offset = fmtf->offset; | |
305 | len = fmtf->size; | |
306 | if (flags & TEP_FIELD_IS_STRING) | |
307 | flags &= ~TEP_FIELD_IS_ARRAY; | |
308 | ||
309 | if (flags & TEP_FIELD_IS_DYNAMIC) { | |
310 | unsigned long long tmp_val; | |
311 | ||
312 | tmp_val = tep_read_number(fmtf->event->tep, | |
313 | data + offset, len); | |
314 | offset = tmp_val; | |
315 | len = offset >> 16; | |
316 | offset &= 0xffff; | |
317 | } | |
318 | ||
319 | if (flags & TEP_FIELD_IS_ARRAY) { | |
320 | ||
321 | type = bt_ctf_event_class_get_field_by_name( | |
322 | event_class, name); | |
323 | array_field = bt_ctf_field_create(type); | |
324 | bt_ctf_field_type_put(type); | |
325 | if (!array_field) { | |
326 | pr_err("Failed to create array type %s\n", name); | |
327 | return -1; | |
328 | } | |
329 | ||
330 | len = fmtf->size / fmtf->arraylen; | |
331 | n_items = fmtf->arraylen; | |
332 | } else { | |
333 | n_items = 1; | |
334 | array_field = NULL; | |
335 | } | |
336 | ||
337 | type = get_tracepoint_field_type(cw, fmtf); | |
338 | ||
339 | for (i = 0; i < n_items; i++) { | |
340 | if (flags & TEP_FIELD_IS_ARRAY) | |
341 | field = bt_ctf_field_array_get_field(array_field, i); | |
342 | else | |
343 | field = bt_ctf_field_create(type); | |
344 | ||
345 | if (!field) { | |
346 | pr_err("failed to create a field %s\n", name); | |
347 | return -1; | |
348 | } | |
349 | ||
350 | if (flags & TEP_FIELD_IS_STRING) | |
351 | ret = string_set_value(field, data + offset + i * len); | |
352 | else { | |
353 | unsigned long long value_int; | |
354 | ||
355 | value_int = tep_read_number( | |
356 | fmtf->event->tep, | |
357 | data + offset + i * len, len); | |
358 | ||
359 | if (!(flags & TEP_FIELD_IS_SIGNED)) | |
360 | ret = bt_ctf_field_unsigned_integer_set_value( | |
361 | field, value_int); | |
362 | else | |
363 | ret = bt_ctf_field_signed_integer_set_value( | |
364 | field, adjust_signedness(value_int, len)); | |
365 | } | |
366 | ||
367 | if (ret) { | |
368 | pr_err("failed to set file value %s\n", name); | |
369 | goto err_put_field; | |
370 | } | |
371 | if (!(flags & TEP_FIELD_IS_ARRAY)) { | |
372 | ret = bt_ctf_event_set_payload(event, name, field); | |
373 | if (ret) { | |
374 | pr_err("failed to set payload %s\n", name); | |
375 | goto err_put_field; | |
376 | } | |
377 | } | |
378 | bt_ctf_field_put(field); | |
379 | } | |
380 | if (flags & TEP_FIELD_IS_ARRAY) { | |
381 | ret = bt_ctf_event_set_payload(event, name, array_field); | |
382 | if (ret) { | |
383 | pr_err("Failed add payload array %s\n", name); | |
384 | return -1; | |
385 | } | |
386 | bt_ctf_field_put(array_field); | |
387 | } | |
388 | return 0; | |
389 | ||
390 | err_put_field: | |
391 | bt_ctf_field_put(field); | |
392 | return -1; | |
393 | } | |
394 | ||
395 | static int add_tracepoint_fields_values(struct ctf_writer *cw, | |
396 | struct bt_ctf_event_class *event_class, | |
397 | struct bt_ctf_event *event, | |
398 | struct tep_format_field *fields, | |
399 | struct perf_sample *sample) | |
400 | { | |
401 | struct tep_format_field *field; | |
402 | int ret; | |
403 | ||
404 | for (field = fields; field; field = field->next) { | |
405 | ret = add_tracepoint_field_value(cw, event_class, event, sample, | |
406 | field); | |
407 | if (ret) | |
408 | return -1; | |
409 | } | |
410 | return 0; | |
411 | } | |
412 | ||
413 | static int add_tracepoint_values(struct ctf_writer *cw, | |
414 | struct bt_ctf_event_class *event_class, | |
415 | struct bt_ctf_event *event, | |
416 | struct evsel *evsel, | |
417 | struct perf_sample *sample) | |
418 | { | |
419 | struct tep_format_field *common_fields = evsel->tp_format->format.common_fields; | |
420 | struct tep_format_field *fields = evsel->tp_format->format.fields; | |
421 | int ret; | |
422 | ||
423 | ret = add_tracepoint_fields_values(cw, event_class, event, | |
424 | common_fields, sample); | |
425 | if (!ret) | |
426 | ret = add_tracepoint_fields_values(cw, event_class, event, | |
427 | fields, sample); | |
428 | ||
429 | return ret; | |
430 | } | |
431 | ||
432 | static int | |
433 | add_bpf_output_values(struct bt_ctf_event_class *event_class, | |
434 | struct bt_ctf_event *event, | |
435 | struct perf_sample *sample) | |
436 | { | |
437 | struct bt_ctf_field_type *len_type, *seq_type; | |
438 | struct bt_ctf_field *len_field, *seq_field; | |
439 | unsigned int raw_size = sample->raw_size; | |
440 | unsigned int nr_elements = raw_size / sizeof(u32); | |
441 | unsigned int i; | |
442 | int ret; | |
443 | ||
444 | if (nr_elements * sizeof(u32) != raw_size) | |
445 | pr_warning("Incorrect raw_size (%u) in bpf output event, skip %zu bytes\n", | |
446 | raw_size, nr_elements * sizeof(u32) - raw_size); | |
447 | ||
448 | len_type = bt_ctf_event_class_get_field_by_name(event_class, "raw_len"); | |
449 | len_field = bt_ctf_field_create(len_type); | |
450 | if (!len_field) { | |
451 | pr_err("failed to create 'raw_len' for bpf output event\n"); | |
452 | ret = -1; | |
453 | goto put_len_type; | |
454 | } | |
455 | ||
456 | ret = bt_ctf_field_unsigned_integer_set_value(len_field, nr_elements); | |
457 | if (ret) { | |
458 | pr_err("failed to set field value for raw_len\n"); | |
459 | goto put_len_field; | |
460 | } | |
461 | ret = bt_ctf_event_set_payload(event, "raw_len", len_field); | |
462 | if (ret) { | |
463 | pr_err("failed to set payload to raw_len\n"); | |
464 | goto put_len_field; | |
465 | } | |
466 | ||
467 | seq_type = bt_ctf_event_class_get_field_by_name(event_class, "raw_data"); | |
468 | seq_field = bt_ctf_field_create(seq_type); | |
469 | if (!seq_field) { | |
470 | pr_err("failed to create 'raw_data' for bpf output event\n"); | |
471 | ret = -1; | |
472 | goto put_seq_type; | |
473 | } | |
474 | ||
475 | ret = bt_ctf_field_sequence_set_length(seq_field, len_field); | |
476 | if (ret) { | |
477 | pr_err("failed to set length of 'raw_data'\n"); | |
478 | goto put_seq_field; | |
479 | } | |
480 | ||
481 | for (i = 0; i < nr_elements; i++) { | |
482 | struct bt_ctf_field *elem_field = | |
483 | bt_ctf_field_sequence_get_field(seq_field, i); | |
484 | ||
485 | ret = bt_ctf_field_unsigned_integer_set_value(elem_field, | |
486 | ((u32 *)(sample->raw_data))[i]); | |
487 | ||
488 | bt_ctf_field_put(elem_field); | |
489 | if (ret) { | |
490 | pr_err("failed to set raw_data[%d]\n", i); | |
491 | goto put_seq_field; | |
492 | } | |
493 | } | |
494 | ||
495 | ret = bt_ctf_event_set_payload(event, "raw_data", seq_field); | |
496 | if (ret) | |
497 | pr_err("failed to set payload for raw_data\n"); | |
498 | ||
499 | put_seq_field: | |
500 | bt_ctf_field_put(seq_field); | |
501 | put_seq_type: | |
502 | bt_ctf_field_type_put(seq_type); | |
503 | put_len_field: | |
504 | bt_ctf_field_put(len_field); | |
505 | put_len_type: | |
506 | bt_ctf_field_type_put(len_type); | |
507 | return ret; | |
508 | } | |
509 | ||
510 | static int | |
511 | add_callchain_output_values(struct bt_ctf_event_class *event_class, | |
512 | struct bt_ctf_event *event, | |
513 | struct ip_callchain *callchain) | |
514 | { | |
515 | struct bt_ctf_field_type *len_type, *seq_type; | |
516 | struct bt_ctf_field *len_field, *seq_field; | |
517 | unsigned int nr_elements = callchain->nr; | |
518 | unsigned int i; | |
519 | int ret; | |
520 | ||
521 | len_type = bt_ctf_event_class_get_field_by_name( | |
522 | event_class, "perf_callchain_size"); | |
523 | len_field = bt_ctf_field_create(len_type); | |
524 | if (!len_field) { | |
525 | pr_err("failed to create 'perf_callchain_size' for callchain output event\n"); | |
526 | ret = -1; | |
527 | goto put_len_type; | |
528 | } | |
529 | ||
530 | ret = bt_ctf_field_unsigned_integer_set_value(len_field, nr_elements); | |
531 | if (ret) { | |
532 | pr_err("failed to set field value for perf_callchain_size\n"); | |
533 | goto put_len_field; | |
534 | } | |
535 | ret = bt_ctf_event_set_payload(event, "perf_callchain_size", len_field); | |
536 | if (ret) { | |
537 | pr_err("failed to set payload to perf_callchain_size\n"); | |
538 | goto put_len_field; | |
539 | } | |
540 | ||
541 | seq_type = bt_ctf_event_class_get_field_by_name( | |
542 | event_class, "perf_callchain"); | |
543 | seq_field = bt_ctf_field_create(seq_type); | |
544 | if (!seq_field) { | |
545 | pr_err("failed to create 'perf_callchain' for callchain output event\n"); | |
546 | ret = -1; | |
547 | goto put_seq_type; | |
548 | } | |
549 | ||
550 | ret = bt_ctf_field_sequence_set_length(seq_field, len_field); | |
551 | if (ret) { | |
552 | pr_err("failed to set length of 'perf_callchain'\n"); | |
553 | goto put_seq_field; | |
554 | } | |
555 | ||
556 | for (i = 0; i < nr_elements; i++) { | |
557 | struct bt_ctf_field *elem_field = | |
558 | bt_ctf_field_sequence_get_field(seq_field, i); | |
559 | ||
560 | ret = bt_ctf_field_unsigned_integer_set_value(elem_field, | |
561 | ((u64 *)(callchain->ips))[i]); | |
562 | ||
563 | bt_ctf_field_put(elem_field); | |
564 | if (ret) { | |
565 | pr_err("failed to set callchain[%d]\n", i); | |
566 | goto put_seq_field; | |
567 | } | |
568 | } | |
569 | ||
570 | ret = bt_ctf_event_set_payload(event, "perf_callchain", seq_field); | |
571 | if (ret) | |
572 | pr_err("failed to set payload for raw_data\n"); | |
573 | ||
574 | put_seq_field: | |
575 | bt_ctf_field_put(seq_field); | |
576 | put_seq_type: | |
577 | bt_ctf_field_type_put(seq_type); | |
578 | put_len_field: | |
579 | bt_ctf_field_put(len_field); | |
580 | put_len_type: | |
581 | bt_ctf_field_type_put(len_type); | |
582 | return ret; | |
583 | } | |
584 | ||
585 | static int add_generic_values(struct ctf_writer *cw, | |
586 | struct bt_ctf_event *event, | |
587 | struct evsel *evsel, | |
588 | struct perf_sample *sample) | |
589 | { | |
590 | u64 type = evsel->attr.sample_type; | |
591 | int ret; | |
592 | ||
593 | /* | |
594 | * missing: | |
595 | * PERF_SAMPLE_TIME - not needed as we have it in | |
596 | * ctf event header | |
597 | * PERF_SAMPLE_READ - TODO | |
598 | * PERF_SAMPLE_RAW - tracepoint fields are handled separately | |
599 | * PERF_SAMPLE_BRANCH_STACK - TODO | |
600 | * PERF_SAMPLE_REGS_USER - TODO | |
601 | * PERF_SAMPLE_STACK_USER - TODO | |
602 | */ | |
603 | ||
604 | if (type & PERF_SAMPLE_IP) { | |
605 | ret = value_set_u64_hex(cw, event, "perf_ip", sample->ip); | |
606 | if (ret) | |
607 | return -1; | |
608 | } | |
609 | ||
610 | if (type & PERF_SAMPLE_TID) { | |
611 | ret = value_set_s32(cw, event, "perf_tid", sample->tid); | |
612 | if (ret) | |
613 | return -1; | |
614 | ||
615 | ret = value_set_s32(cw, event, "perf_pid", sample->pid); | |
616 | if (ret) | |
617 | return -1; | |
618 | } | |
619 | ||
620 | if ((type & PERF_SAMPLE_ID) || | |
621 | (type & PERF_SAMPLE_IDENTIFIER)) { | |
622 | ret = value_set_u64(cw, event, "perf_id", sample->id); | |
623 | if (ret) | |
624 | return -1; | |
625 | } | |
626 | ||
627 | if (type & PERF_SAMPLE_STREAM_ID) { | |
628 | ret = value_set_u64(cw, event, "perf_stream_id", sample->stream_id); | |
629 | if (ret) | |
630 | return -1; | |
631 | } | |
632 | ||
633 | if (type & PERF_SAMPLE_PERIOD) { | |
634 | ret = value_set_u64(cw, event, "perf_period", sample->period); | |
635 | if (ret) | |
636 | return -1; | |
637 | } | |
638 | ||
639 | if (type & PERF_SAMPLE_WEIGHT) { | |
640 | ret = value_set_u64(cw, event, "perf_weight", sample->weight); | |
641 | if (ret) | |
642 | return -1; | |
643 | } | |
644 | ||
645 | if (type & PERF_SAMPLE_DATA_SRC) { | |
646 | ret = value_set_u64(cw, event, "perf_data_src", | |
647 | sample->data_src); | |
648 | if (ret) | |
649 | return -1; | |
650 | } | |
651 | ||
652 | if (type & PERF_SAMPLE_TRANSACTION) { | |
653 | ret = value_set_u64(cw, event, "perf_transaction", | |
654 | sample->transaction); | |
655 | if (ret) | |
656 | return -1; | |
657 | } | |
658 | ||
659 | return 0; | |
660 | } | |
661 | ||
662 | static int ctf_stream__flush(struct ctf_stream *cs) | |
663 | { | |
664 | int err = 0; | |
665 | ||
666 | if (cs) { | |
667 | err = bt_ctf_stream_flush(cs->stream); | |
668 | if (err) | |
669 | pr_err("CTF stream %d flush failed\n", cs->cpu); | |
670 | ||
671 | pr("Flush stream for cpu %d (%u samples)\n", | |
672 | cs->cpu, cs->count); | |
673 | ||
674 | cs->count = 0; | |
675 | } | |
676 | ||
677 | return err; | |
678 | } | |
679 | ||
680 | static struct ctf_stream *ctf_stream__create(struct ctf_writer *cw, int cpu) | |
681 | { | |
682 | struct ctf_stream *cs; | |
683 | struct bt_ctf_field *pkt_ctx = NULL; | |
684 | struct bt_ctf_field *cpu_field = NULL; | |
685 | struct bt_ctf_stream *stream = NULL; | |
686 | int ret; | |
687 | ||
688 | cs = zalloc(sizeof(*cs)); | |
689 | if (!cs) { | |
690 | pr_err("Failed to allocate ctf stream\n"); | |
691 | return NULL; | |
692 | } | |
693 | ||
694 | stream = bt_ctf_writer_create_stream(cw->writer, cw->stream_class); | |
695 | if (!stream) { | |
696 | pr_err("Failed to create CTF stream\n"); | |
697 | goto out; | |
698 | } | |
699 | ||
700 | pkt_ctx = bt_ctf_stream_get_packet_context(stream); | |
701 | if (!pkt_ctx) { | |
702 | pr_err("Failed to obtain packet context\n"); | |
703 | goto out; | |
704 | } | |
705 | ||
706 | cpu_field = bt_ctf_field_structure_get_field(pkt_ctx, "cpu_id"); | |
707 | bt_ctf_field_put(pkt_ctx); | |
708 | if (!cpu_field) { | |
709 | pr_err("Failed to obtain cpu field\n"); | |
710 | goto out; | |
711 | } | |
712 | ||
713 | ret = bt_ctf_field_unsigned_integer_set_value(cpu_field, (u32) cpu); | |
714 | if (ret) { | |
715 | pr_err("Failed to update CPU number\n"); | |
716 | goto out; | |
717 | } | |
718 | ||
719 | bt_ctf_field_put(cpu_field); | |
720 | ||
721 | cs->cpu = cpu; | |
722 | cs->stream = stream; | |
723 | return cs; | |
724 | ||
725 | out: | |
726 | if (cpu_field) | |
727 | bt_ctf_field_put(cpu_field); | |
728 | if (stream) | |
729 | bt_ctf_stream_put(stream); | |
730 | ||
731 | free(cs); | |
732 | return NULL; | |
733 | } | |
734 | ||
735 | static void ctf_stream__delete(struct ctf_stream *cs) | |
736 | { | |
737 | if (cs) { | |
738 | bt_ctf_stream_put(cs->stream); | |
739 | free(cs); | |
740 | } | |
741 | } | |
742 | ||
743 | static struct ctf_stream *ctf_stream(struct ctf_writer *cw, int cpu) | |
744 | { | |
745 | struct ctf_stream *cs = cw->stream[cpu]; | |
746 | ||
747 | if (!cs) { | |
748 | cs = ctf_stream__create(cw, cpu); | |
749 | cw->stream[cpu] = cs; | |
750 | } | |
751 | ||
752 | return cs; | |
753 | } | |
754 | ||
755 | static int get_sample_cpu(struct ctf_writer *cw, struct perf_sample *sample, | |
756 | struct evsel *evsel) | |
757 | { | |
758 | int cpu = 0; | |
759 | ||
760 | if (evsel->attr.sample_type & PERF_SAMPLE_CPU) | |
761 | cpu = sample->cpu; | |
762 | ||
763 | if (cpu > cw->stream_cnt) { | |
764 | pr_err("Event was recorded for CPU %d, limit is at %d.\n", | |
765 | cpu, cw->stream_cnt); | |
766 | cpu = 0; | |
767 | } | |
768 | ||
769 | return cpu; | |
770 | } | |
771 | ||
772 | #define STREAM_FLUSH_COUNT 100000 | |
773 | ||
774 | /* | |
775 | * Currently we have no other way to determine the | |
776 | * time for the stream flush other than keep track | |
777 | * of the number of events and check it against | |
778 | * threshold. | |
779 | */ | |
780 | static bool is_flush_needed(struct ctf_stream *cs) | |
781 | { | |
782 | return cs->count >= STREAM_FLUSH_COUNT; | |
783 | } | |
784 | ||
785 | static int process_sample_event(struct perf_tool *tool, | |
786 | union perf_event *_event, | |
787 | struct perf_sample *sample, | |
788 | struct evsel *evsel, | |
789 | struct machine *machine __maybe_unused) | |
790 | { | |
791 | struct convert *c = container_of(tool, struct convert, tool); | |
792 | struct evsel_priv *priv = evsel->priv; | |
793 | struct ctf_writer *cw = &c->writer; | |
794 | struct ctf_stream *cs; | |
795 | struct bt_ctf_event_class *event_class; | |
796 | struct bt_ctf_event *event; | |
797 | int ret; | |
798 | unsigned long type = evsel->attr.sample_type; | |
799 | ||
800 | if (WARN_ONCE(!priv, "Failed to setup all events.\n")) | |
801 | return 0; | |
802 | ||
803 | event_class = priv->event_class; | |
804 | ||
805 | /* update stats */ | |
806 | c->events_count++; | |
807 | c->events_size += _event->header.size; | |
808 | ||
809 | pr_time2(sample->time, "sample %" PRIu64 "\n", c->events_count); | |
810 | ||
811 | event = bt_ctf_event_create(event_class); | |
812 | if (!event) { | |
813 | pr_err("Failed to create an CTF event\n"); | |
814 | return -1; | |
815 | } | |
816 | ||
817 | bt_ctf_clock_set_time(cw->clock, sample->time); | |
818 | ||
819 | ret = add_generic_values(cw, event, evsel, sample); | |
820 | if (ret) | |
821 | return -1; | |
822 | ||
823 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) { | |
824 | ret = add_tracepoint_values(cw, event_class, event, | |
825 | evsel, sample); | |
826 | if (ret) | |
827 | return -1; | |
828 | } | |
829 | ||
830 | if (type & PERF_SAMPLE_CALLCHAIN) { | |
831 | ret = add_callchain_output_values(event_class, | |
832 | event, sample->callchain); | |
833 | if (ret) | |
834 | return -1; | |
835 | } | |
836 | ||
837 | if (perf_evsel__is_bpf_output(evsel)) { | |
838 | ret = add_bpf_output_values(event_class, event, sample); | |
839 | if (ret) | |
840 | return -1; | |
841 | } | |
842 | ||
843 | cs = ctf_stream(cw, get_sample_cpu(cw, sample, evsel)); | |
844 | if (cs) { | |
845 | if (is_flush_needed(cs)) | |
846 | ctf_stream__flush(cs); | |
847 | ||
848 | cs->count++; | |
849 | bt_ctf_stream_append_event(cs->stream, event); | |
850 | } | |
851 | ||
852 | bt_ctf_event_put(event); | |
853 | return cs ? 0 : -1; | |
854 | } | |
855 | ||
856 | #define __NON_SAMPLE_SET_FIELD(_name, _type, _field) \ | |
857 | do { \ | |
858 | ret = value_set_##_type(cw, event, #_field, _event->_name._field);\ | |
859 | if (ret) \ | |
860 | return -1; \ | |
861 | } while(0) | |
862 | ||
863 | #define __FUNC_PROCESS_NON_SAMPLE(_name, body) \ | |
864 | static int process_##_name##_event(struct perf_tool *tool, \ | |
865 | union perf_event *_event, \ | |
866 | struct perf_sample *sample, \ | |
867 | struct machine *machine) \ | |
868 | { \ | |
869 | struct convert *c = container_of(tool, struct convert, tool);\ | |
870 | struct ctf_writer *cw = &c->writer; \ | |
871 | struct bt_ctf_event_class *event_class = cw->_name##_class;\ | |
872 | struct bt_ctf_event *event; \ | |
873 | struct ctf_stream *cs; \ | |
874 | int ret; \ | |
875 | \ | |
876 | c->non_sample_count++; \ | |
877 | c->events_size += _event->header.size; \ | |
878 | event = bt_ctf_event_create(event_class); \ | |
879 | if (!event) { \ | |
880 | pr_err("Failed to create an CTF event\n"); \ | |
881 | return -1; \ | |
882 | } \ | |
883 | \ | |
884 | bt_ctf_clock_set_time(cw->clock, sample->time); \ | |
885 | body \ | |
886 | cs = ctf_stream(cw, 0); \ | |
887 | if (cs) { \ | |
888 | if (is_flush_needed(cs)) \ | |
889 | ctf_stream__flush(cs); \ | |
890 | \ | |
891 | cs->count++; \ | |
892 | bt_ctf_stream_append_event(cs->stream, event); \ | |
893 | } \ | |
894 | bt_ctf_event_put(event); \ | |
895 | \ | |
896 | return perf_event__process_##_name(tool, _event, sample, machine);\ | |
897 | } | |
898 | ||
899 | __FUNC_PROCESS_NON_SAMPLE(comm, | |
900 | __NON_SAMPLE_SET_FIELD(comm, u32, pid); | |
901 | __NON_SAMPLE_SET_FIELD(comm, u32, tid); | |
902 | __NON_SAMPLE_SET_FIELD(comm, string, comm); | |
903 | ) | |
904 | __FUNC_PROCESS_NON_SAMPLE(fork, | |
905 | __NON_SAMPLE_SET_FIELD(fork, u32, pid); | |
906 | __NON_SAMPLE_SET_FIELD(fork, u32, ppid); | |
907 | __NON_SAMPLE_SET_FIELD(fork, u32, tid); | |
908 | __NON_SAMPLE_SET_FIELD(fork, u32, ptid); | |
909 | __NON_SAMPLE_SET_FIELD(fork, u64, time); | |
910 | ) | |
911 | ||
912 | __FUNC_PROCESS_NON_SAMPLE(exit, | |
913 | __NON_SAMPLE_SET_FIELD(fork, u32, pid); | |
914 | __NON_SAMPLE_SET_FIELD(fork, u32, ppid); | |
915 | __NON_SAMPLE_SET_FIELD(fork, u32, tid); | |
916 | __NON_SAMPLE_SET_FIELD(fork, u32, ptid); | |
917 | __NON_SAMPLE_SET_FIELD(fork, u64, time); | |
918 | ) | |
919 | __FUNC_PROCESS_NON_SAMPLE(mmap, | |
920 | __NON_SAMPLE_SET_FIELD(mmap, u32, pid); | |
921 | __NON_SAMPLE_SET_FIELD(mmap, u32, tid); | |
922 | __NON_SAMPLE_SET_FIELD(mmap, u64_hex, start); | |
923 | __NON_SAMPLE_SET_FIELD(mmap, string, filename); | |
924 | ) | |
925 | __FUNC_PROCESS_NON_SAMPLE(mmap2, | |
926 | __NON_SAMPLE_SET_FIELD(mmap2, u32, pid); | |
927 | __NON_SAMPLE_SET_FIELD(mmap2, u32, tid); | |
928 | __NON_SAMPLE_SET_FIELD(mmap2, u64_hex, start); | |
929 | __NON_SAMPLE_SET_FIELD(mmap2, string, filename); | |
930 | ) | |
931 | #undef __NON_SAMPLE_SET_FIELD | |
932 | #undef __FUNC_PROCESS_NON_SAMPLE | |
933 | ||
934 | /* If dup < 0, add a prefix. Else, add _dupl_X suffix. */ | |
935 | static char *change_name(char *name, char *orig_name, int dup) | |
936 | { | |
937 | char *new_name = NULL; | |
938 | size_t len; | |
939 | ||
940 | if (!name) | |
941 | name = orig_name; | |
942 | ||
943 | if (dup >= 10) | |
944 | goto out; | |
945 | /* | |
946 | * Add '_' prefix to potential keywork. According to | |
947 | * Mathieu Desnoyers (https://lkml.org/lkml/2015/1/23/652), | |
948 | * futher CTF spec updating may require us to use '$'. | |
949 | */ | |
950 | if (dup < 0) | |
951 | len = strlen(name) + sizeof("_"); | |
952 | else | |
953 | len = strlen(orig_name) + sizeof("_dupl_X"); | |
954 | ||
955 | new_name = malloc(len); | |
956 | if (!new_name) | |
957 | goto out; | |
958 | ||
959 | if (dup < 0) | |
960 | snprintf(new_name, len, "_%s", name); | |
961 | else | |
962 | snprintf(new_name, len, "%s_dupl_%d", orig_name, dup); | |
963 | ||
964 | out: | |
965 | if (name != orig_name) | |
966 | free(name); | |
967 | return new_name; | |
968 | } | |
969 | ||
970 | static int event_class_add_field(struct bt_ctf_event_class *event_class, | |
971 | struct bt_ctf_field_type *type, | |
972 | struct tep_format_field *field) | |
973 | { | |
974 | struct bt_ctf_field_type *t = NULL; | |
975 | char *name; | |
976 | int dup = 1; | |
977 | int ret; | |
978 | ||
979 | /* alias was already assigned */ | |
980 | if (field->alias != field->name) | |
981 | return bt_ctf_event_class_add_field(event_class, type, | |
982 | (char *)field->alias); | |
983 | ||
984 | name = field->name; | |
985 | ||
986 | /* If 'name' is a keywork, add prefix. */ | |
987 | if (bt_ctf_validate_identifier(name)) | |
988 | name = change_name(name, field->name, -1); | |
989 | ||
990 | if (!name) { | |
991 | pr_err("Failed to fix invalid identifier."); | |
992 | return -1; | |
993 | } | |
994 | while ((t = bt_ctf_event_class_get_field_by_name(event_class, name))) { | |
995 | bt_ctf_field_type_put(t); | |
996 | name = change_name(name, field->name, dup++); | |
997 | if (!name) { | |
998 | pr_err("Failed to create dup name for '%s'\n", field->name); | |
999 | return -1; | |
1000 | } | |
1001 | } | |
1002 | ||
1003 | ret = bt_ctf_event_class_add_field(event_class, type, name); | |
1004 | if (!ret) | |
1005 | field->alias = name; | |
1006 | ||
1007 | return ret; | |
1008 | } | |
1009 | ||
1010 | static int add_tracepoint_fields_types(struct ctf_writer *cw, | |
1011 | struct tep_format_field *fields, | |
1012 | struct bt_ctf_event_class *event_class) | |
1013 | { | |
1014 | struct tep_format_field *field; | |
1015 | int ret; | |
1016 | ||
1017 | for (field = fields; field; field = field->next) { | |
1018 | struct bt_ctf_field_type *type; | |
1019 | unsigned long flags = field->flags; | |
1020 | ||
1021 | pr2(" field '%s'\n", field->name); | |
1022 | ||
1023 | type = get_tracepoint_field_type(cw, field); | |
1024 | if (!type) | |
1025 | return -1; | |
1026 | ||
1027 | /* | |
1028 | * A string is an array of chars. For this we use the string | |
1029 | * type and don't care that it is an array. What we don't | |
1030 | * support is an array of strings. | |
1031 | */ | |
1032 | if (flags & TEP_FIELD_IS_STRING) | |
1033 | flags &= ~TEP_FIELD_IS_ARRAY; | |
1034 | ||
1035 | if (flags & TEP_FIELD_IS_ARRAY) | |
1036 | type = bt_ctf_field_type_array_create(type, field->arraylen); | |
1037 | ||
1038 | ret = event_class_add_field(event_class, type, field); | |
1039 | ||
1040 | if (flags & TEP_FIELD_IS_ARRAY) | |
1041 | bt_ctf_field_type_put(type); | |
1042 | ||
1043 | if (ret) { | |
1044 | pr_err("Failed to add field '%s': %d\n", | |
1045 | field->name, ret); | |
1046 | return -1; | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | return 0; | |
1051 | } | |
1052 | ||
1053 | static int add_tracepoint_types(struct ctf_writer *cw, | |
1054 | struct evsel *evsel, | |
1055 | struct bt_ctf_event_class *class) | |
1056 | { | |
1057 | struct tep_format_field *common_fields = evsel->tp_format->format.common_fields; | |
1058 | struct tep_format_field *fields = evsel->tp_format->format.fields; | |
1059 | int ret; | |
1060 | ||
1061 | ret = add_tracepoint_fields_types(cw, common_fields, class); | |
1062 | if (!ret) | |
1063 | ret = add_tracepoint_fields_types(cw, fields, class); | |
1064 | ||
1065 | return ret; | |
1066 | } | |
1067 | ||
1068 | static int add_bpf_output_types(struct ctf_writer *cw, | |
1069 | struct bt_ctf_event_class *class) | |
1070 | { | |
1071 | struct bt_ctf_field_type *len_type = cw->data.u32; | |
1072 | struct bt_ctf_field_type *seq_base_type = cw->data.u32_hex; | |
1073 | struct bt_ctf_field_type *seq_type; | |
1074 | int ret; | |
1075 | ||
1076 | ret = bt_ctf_event_class_add_field(class, len_type, "raw_len"); | |
1077 | if (ret) | |
1078 | return ret; | |
1079 | ||
1080 | seq_type = bt_ctf_field_type_sequence_create(seq_base_type, "raw_len"); | |
1081 | if (!seq_type) | |
1082 | return -1; | |
1083 | ||
1084 | return bt_ctf_event_class_add_field(class, seq_type, "raw_data"); | |
1085 | } | |
1086 | ||
1087 | static int add_generic_types(struct ctf_writer *cw, struct evsel *evsel, | |
1088 | struct bt_ctf_event_class *event_class) | |
1089 | { | |
1090 | u64 type = evsel->attr.sample_type; | |
1091 | ||
1092 | /* | |
1093 | * missing: | |
1094 | * PERF_SAMPLE_TIME - not needed as we have it in | |
1095 | * ctf event header | |
1096 | * PERF_SAMPLE_READ - TODO | |
1097 | * PERF_SAMPLE_CALLCHAIN - TODO | |
1098 | * PERF_SAMPLE_RAW - tracepoint fields and BPF output | |
1099 | * are handled separately | |
1100 | * PERF_SAMPLE_BRANCH_STACK - TODO | |
1101 | * PERF_SAMPLE_REGS_USER - TODO | |
1102 | * PERF_SAMPLE_STACK_USER - TODO | |
1103 | */ | |
1104 | ||
1105 | #define ADD_FIELD(cl, t, n) \ | |
1106 | do { \ | |
1107 | pr2(" field '%s'\n", n); \ | |
1108 | if (bt_ctf_event_class_add_field(cl, t, n)) { \ | |
1109 | pr_err("Failed to add field '%s';\n", n); \ | |
1110 | return -1; \ | |
1111 | } \ | |
1112 | } while (0) | |
1113 | ||
1114 | if (type & PERF_SAMPLE_IP) | |
1115 | ADD_FIELD(event_class, cw->data.u64_hex, "perf_ip"); | |
1116 | ||
1117 | if (type & PERF_SAMPLE_TID) { | |
1118 | ADD_FIELD(event_class, cw->data.s32, "perf_tid"); | |
1119 | ADD_FIELD(event_class, cw->data.s32, "perf_pid"); | |
1120 | } | |
1121 | ||
1122 | if ((type & PERF_SAMPLE_ID) || | |
1123 | (type & PERF_SAMPLE_IDENTIFIER)) | |
1124 | ADD_FIELD(event_class, cw->data.u64, "perf_id"); | |
1125 | ||
1126 | if (type & PERF_SAMPLE_STREAM_ID) | |
1127 | ADD_FIELD(event_class, cw->data.u64, "perf_stream_id"); | |
1128 | ||
1129 | if (type & PERF_SAMPLE_PERIOD) | |
1130 | ADD_FIELD(event_class, cw->data.u64, "perf_period"); | |
1131 | ||
1132 | if (type & PERF_SAMPLE_WEIGHT) | |
1133 | ADD_FIELD(event_class, cw->data.u64, "perf_weight"); | |
1134 | ||
1135 | if (type & PERF_SAMPLE_DATA_SRC) | |
1136 | ADD_FIELD(event_class, cw->data.u64, "perf_data_src"); | |
1137 | ||
1138 | if (type & PERF_SAMPLE_TRANSACTION) | |
1139 | ADD_FIELD(event_class, cw->data.u64, "perf_transaction"); | |
1140 | ||
1141 | if (type & PERF_SAMPLE_CALLCHAIN) { | |
1142 | ADD_FIELD(event_class, cw->data.u32, "perf_callchain_size"); | |
1143 | ADD_FIELD(event_class, | |
1144 | bt_ctf_field_type_sequence_create( | |
1145 | cw->data.u64_hex, "perf_callchain_size"), | |
1146 | "perf_callchain"); | |
1147 | } | |
1148 | ||
1149 | #undef ADD_FIELD | |
1150 | return 0; | |
1151 | } | |
1152 | ||
1153 | static int add_event(struct ctf_writer *cw, struct evsel *evsel) | |
1154 | { | |
1155 | struct bt_ctf_event_class *event_class; | |
1156 | struct evsel_priv *priv; | |
1157 | const char *name = perf_evsel__name(evsel); | |
1158 | int ret; | |
1159 | ||
1160 | pr("Adding event '%s' (type %d)\n", name, evsel->attr.type); | |
1161 | ||
1162 | event_class = bt_ctf_event_class_create(name); | |
1163 | if (!event_class) | |
1164 | return -1; | |
1165 | ||
1166 | ret = add_generic_types(cw, evsel, event_class); | |
1167 | if (ret) | |
1168 | goto err; | |
1169 | ||
1170 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) { | |
1171 | ret = add_tracepoint_types(cw, evsel, event_class); | |
1172 | if (ret) | |
1173 | goto err; | |
1174 | } | |
1175 | ||
1176 | if (perf_evsel__is_bpf_output(evsel)) { | |
1177 | ret = add_bpf_output_types(cw, event_class); | |
1178 | if (ret) | |
1179 | goto err; | |
1180 | } | |
1181 | ||
1182 | ret = bt_ctf_stream_class_add_event_class(cw->stream_class, event_class); | |
1183 | if (ret) { | |
1184 | pr("Failed to add event class into stream.\n"); | |
1185 | goto err; | |
1186 | } | |
1187 | ||
1188 | priv = malloc(sizeof(*priv)); | |
1189 | if (!priv) | |
1190 | goto err; | |
1191 | ||
1192 | priv->event_class = event_class; | |
1193 | evsel->priv = priv; | |
1194 | return 0; | |
1195 | ||
1196 | err: | |
1197 | bt_ctf_event_class_put(event_class); | |
1198 | pr_err("Failed to add event '%s'.\n", name); | |
1199 | return -1; | |
1200 | } | |
1201 | ||
1202 | static int setup_events(struct ctf_writer *cw, struct perf_session *session) | |
1203 | { | |
1204 | struct evlist *evlist = session->evlist; | |
1205 | struct evsel *evsel; | |
1206 | int ret; | |
1207 | ||
1208 | evlist__for_each_entry(evlist, evsel) { | |
1209 | ret = add_event(cw, evsel); | |
1210 | if (ret) | |
1211 | return ret; | |
1212 | } | |
1213 | return 0; | |
1214 | } | |
1215 | ||
1216 | #define __NON_SAMPLE_ADD_FIELD(t, n) \ | |
1217 | do { \ | |
1218 | pr2(" field '%s'\n", #n); \ | |
1219 | if (bt_ctf_event_class_add_field(event_class, cw->data.t, #n)) {\ | |
1220 | pr_err("Failed to add field '%s';\n", #n);\ | |
1221 | return -1; \ | |
1222 | } \ | |
1223 | } while(0) | |
1224 | ||
1225 | #define __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(_name, body) \ | |
1226 | static int add_##_name##_event(struct ctf_writer *cw) \ | |
1227 | { \ | |
1228 | struct bt_ctf_event_class *event_class; \ | |
1229 | int ret; \ | |
1230 | \ | |
1231 | pr("Adding "#_name" event\n"); \ | |
1232 | event_class = bt_ctf_event_class_create("perf_" #_name);\ | |
1233 | if (!event_class) \ | |
1234 | return -1; \ | |
1235 | body \ | |
1236 | \ | |
1237 | ret = bt_ctf_stream_class_add_event_class(cw->stream_class, event_class);\ | |
1238 | if (ret) { \ | |
1239 | pr("Failed to add event class '"#_name"' into stream.\n");\ | |
1240 | return ret; \ | |
1241 | } \ | |
1242 | \ | |
1243 | cw->_name##_class = event_class; \ | |
1244 | bt_ctf_event_class_put(event_class); \ | |
1245 | return 0; \ | |
1246 | } | |
1247 | ||
1248 | __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(comm, | |
1249 | __NON_SAMPLE_ADD_FIELD(u32, pid); | |
1250 | __NON_SAMPLE_ADD_FIELD(u32, tid); | |
1251 | __NON_SAMPLE_ADD_FIELD(string, comm); | |
1252 | ) | |
1253 | ||
1254 | __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(fork, | |
1255 | __NON_SAMPLE_ADD_FIELD(u32, pid); | |
1256 | __NON_SAMPLE_ADD_FIELD(u32, ppid); | |
1257 | __NON_SAMPLE_ADD_FIELD(u32, tid); | |
1258 | __NON_SAMPLE_ADD_FIELD(u32, ptid); | |
1259 | __NON_SAMPLE_ADD_FIELD(u64, time); | |
1260 | ) | |
1261 | ||
1262 | __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(exit, | |
1263 | __NON_SAMPLE_ADD_FIELD(u32, pid); | |
1264 | __NON_SAMPLE_ADD_FIELD(u32, ppid); | |
1265 | __NON_SAMPLE_ADD_FIELD(u32, tid); | |
1266 | __NON_SAMPLE_ADD_FIELD(u32, ptid); | |
1267 | __NON_SAMPLE_ADD_FIELD(u64, time); | |
1268 | ) | |
1269 | ||
1270 | __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap, | |
1271 | __NON_SAMPLE_ADD_FIELD(u32, pid); | |
1272 | __NON_SAMPLE_ADD_FIELD(u32, tid); | |
1273 | __NON_SAMPLE_ADD_FIELD(u64_hex, start); | |
1274 | __NON_SAMPLE_ADD_FIELD(string, filename); | |
1275 | ) | |
1276 | ||
1277 | __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap2, | |
1278 | __NON_SAMPLE_ADD_FIELD(u32, pid); | |
1279 | __NON_SAMPLE_ADD_FIELD(u32, tid); | |
1280 | __NON_SAMPLE_ADD_FIELD(u64_hex, start); | |
1281 | __NON_SAMPLE_ADD_FIELD(string, filename); | |
1282 | ) | |
1283 | #undef __NON_SAMPLE_ADD_FIELD | |
1284 | #undef __FUNC_ADD_NON_SAMPLE_EVENT_CLASS | |
1285 | ||
1286 | static int setup_non_sample_events(struct ctf_writer *cw, | |
1287 | struct perf_session *session __maybe_unused) | |
1288 | { | |
1289 | int ret; | |
1290 | ||
1291 | ret = add_comm_event(cw); | |
1292 | if (ret) | |
1293 | return ret; | |
1294 | ret = add_exit_event(cw); | |
1295 | if (ret) | |
1296 | return ret; | |
1297 | ret = add_fork_event(cw); | |
1298 | if (ret) | |
1299 | return ret; | |
1300 | ret = add_mmap_event(cw); | |
1301 | if (ret) | |
1302 | return ret; | |
1303 | ret = add_mmap2_event(cw); | |
1304 | if (ret) | |
1305 | return ret; | |
1306 | return 0; | |
1307 | } | |
1308 | ||
1309 | static void cleanup_events(struct perf_session *session) | |
1310 | { | |
1311 | struct evlist *evlist = session->evlist; | |
1312 | struct evsel *evsel; | |
1313 | ||
1314 | evlist__for_each_entry(evlist, evsel) { | |
1315 | struct evsel_priv *priv; | |
1316 | ||
1317 | priv = evsel->priv; | |
1318 | bt_ctf_event_class_put(priv->event_class); | |
1319 | zfree(&evsel->priv); | |
1320 | } | |
1321 | ||
1322 | perf_evlist__delete(evlist); | |
1323 | session->evlist = NULL; | |
1324 | } | |
1325 | ||
1326 | static int setup_streams(struct ctf_writer *cw, struct perf_session *session) | |
1327 | { | |
1328 | struct ctf_stream **stream; | |
1329 | struct perf_header *ph = &session->header; | |
1330 | int ncpus; | |
1331 | ||
1332 | /* | |
1333 | * Try to get the number of cpus used in the data file, | |
1334 | * if not present fallback to the MAX_CPUS. | |
1335 | */ | |
1336 | ncpus = ph->env.nr_cpus_avail ?: MAX_CPUS; | |
1337 | ||
1338 | stream = zalloc(sizeof(*stream) * ncpus); | |
1339 | if (!stream) { | |
1340 | pr_err("Failed to allocate streams.\n"); | |
1341 | return -ENOMEM; | |
1342 | } | |
1343 | ||
1344 | cw->stream = stream; | |
1345 | cw->stream_cnt = ncpus; | |
1346 | return 0; | |
1347 | } | |
1348 | ||
1349 | static void free_streams(struct ctf_writer *cw) | |
1350 | { | |
1351 | int cpu; | |
1352 | ||
1353 | for (cpu = 0; cpu < cw->stream_cnt; cpu++) | |
1354 | ctf_stream__delete(cw->stream[cpu]); | |
1355 | ||
1356 | zfree(&cw->stream); | |
1357 | } | |
1358 | ||
1359 | static int ctf_writer__setup_env(struct ctf_writer *cw, | |
1360 | struct perf_session *session) | |
1361 | { | |
1362 | struct perf_header *header = &session->header; | |
1363 | struct bt_ctf_writer *writer = cw->writer; | |
1364 | ||
1365 | #define ADD(__n, __v) \ | |
1366 | do { \ | |
1367 | if (bt_ctf_writer_add_environment_field(writer, __n, __v)) \ | |
1368 | return -1; \ | |
1369 | } while (0) | |
1370 | ||
1371 | ADD("host", header->env.hostname); | |
1372 | ADD("sysname", "Linux"); | |
1373 | ADD("release", header->env.os_release); | |
1374 | ADD("version", header->env.version); | |
1375 | ADD("machine", header->env.arch); | |
1376 | ADD("domain", "kernel"); | |
1377 | ADD("tracer_name", "perf"); | |
1378 | ||
1379 | #undef ADD | |
1380 | return 0; | |
1381 | } | |
1382 | ||
1383 | static int ctf_writer__setup_clock(struct ctf_writer *cw) | |
1384 | { | |
1385 | struct bt_ctf_clock *clock = cw->clock; | |
1386 | ||
1387 | bt_ctf_clock_set_description(clock, "perf clock"); | |
1388 | ||
1389 | #define SET(__n, __v) \ | |
1390 | do { \ | |
1391 | if (bt_ctf_clock_set_##__n(clock, __v)) \ | |
1392 | return -1; \ | |
1393 | } while (0) | |
1394 | ||
1395 | SET(frequency, 1000000000); | |
1396 | SET(offset_s, 0); | |
1397 | SET(offset, 0); | |
1398 | SET(precision, 10); | |
1399 | SET(is_absolute, 0); | |
1400 | ||
1401 | #undef SET | |
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | static struct bt_ctf_field_type *create_int_type(int size, bool sign, bool hex) | |
1406 | { | |
1407 | struct bt_ctf_field_type *type; | |
1408 | ||
1409 | type = bt_ctf_field_type_integer_create(size); | |
1410 | if (!type) | |
1411 | return NULL; | |
1412 | ||
1413 | if (sign && | |
1414 | bt_ctf_field_type_integer_set_signed(type, 1)) | |
1415 | goto err; | |
1416 | ||
1417 | if (hex && | |
1418 | bt_ctf_field_type_integer_set_base(type, BT_CTF_INTEGER_BASE_HEXADECIMAL)) | |
1419 | goto err; | |
1420 | ||
1421 | #if __BYTE_ORDER == __BIG_ENDIAN | |
1422 | bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_BIG_ENDIAN); | |
1423 | #else | |
1424 | bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_LITTLE_ENDIAN); | |
1425 | #endif | |
1426 | ||
1427 | pr2("Created type: INTEGER %d-bit %ssigned %s\n", | |
1428 | size, sign ? "un" : "", hex ? "hex" : ""); | |
1429 | return type; | |
1430 | ||
1431 | err: | |
1432 | bt_ctf_field_type_put(type); | |
1433 | return NULL; | |
1434 | } | |
1435 | ||
1436 | static void ctf_writer__cleanup_data(struct ctf_writer *cw) | |
1437 | { | |
1438 | unsigned int i; | |
1439 | ||
1440 | for (i = 0; i < ARRAY_SIZE(cw->data.array); i++) | |
1441 | bt_ctf_field_type_put(cw->data.array[i]); | |
1442 | } | |
1443 | ||
1444 | static int ctf_writer__init_data(struct ctf_writer *cw) | |
1445 | { | |
1446 | #define CREATE_INT_TYPE(type, size, sign, hex) \ | |
1447 | do { \ | |
1448 | (type) = create_int_type(size, sign, hex); \ | |
1449 | if (!(type)) \ | |
1450 | goto err; \ | |
1451 | } while (0) | |
1452 | ||
1453 | CREATE_INT_TYPE(cw->data.s64, 64, true, false); | |
1454 | CREATE_INT_TYPE(cw->data.u64, 64, false, false); | |
1455 | CREATE_INT_TYPE(cw->data.s32, 32, true, false); | |
1456 | CREATE_INT_TYPE(cw->data.u32, 32, false, false); | |
1457 | CREATE_INT_TYPE(cw->data.u32_hex, 32, false, true); | |
1458 | CREATE_INT_TYPE(cw->data.u64_hex, 64, false, true); | |
1459 | ||
1460 | cw->data.string = bt_ctf_field_type_string_create(); | |
1461 | if (cw->data.string) | |
1462 | return 0; | |
1463 | ||
1464 | err: | |
1465 | ctf_writer__cleanup_data(cw); | |
1466 | pr_err("Failed to create data types.\n"); | |
1467 | return -1; | |
1468 | } | |
1469 | ||
1470 | static void ctf_writer__cleanup(struct ctf_writer *cw) | |
1471 | { | |
1472 | ctf_writer__cleanup_data(cw); | |
1473 | ||
1474 | bt_ctf_clock_put(cw->clock); | |
1475 | free_streams(cw); | |
1476 | bt_ctf_stream_class_put(cw->stream_class); | |
1477 | bt_ctf_writer_put(cw->writer); | |
1478 | ||
1479 | /* and NULL all the pointers */ | |
1480 | memset(cw, 0, sizeof(*cw)); | |
1481 | } | |
1482 | ||
1483 | static int ctf_writer__init(struct ctf_writer *cw, const char *path) | |
1484 | { | |
1485 | struct bt_ctf_writer *writer; | |
1486 | struct bt_ctf_stream_class *stream_class; | |
1487 | struct bt_ctf_clock *clock; | |
1488 | struct bt_ctf_field_type *pkt_ctx_type; | |
1489 | int ret; | |
1490 | ||
1491 | /* CTF writer */ | |
1492 | writer = bt_ctf_writer_create(path); | |
1493 | if (!writer) | |
1494 | goto err; | |
1495 | ||
1496 | cw->writer = writer; | |
1497 | ||
1498 | /* CTF clock */ | |
1499 | clock = bt_ctf_clock_create("perf_clock"); | |
1500 | if (!clock) { | |
1501 | pr("Failed to create CTF clock.\n"); | |
1502 | goto err_cleanup; | |
1503 | } | |
1504 | ||
1505 | cw->clock = clock; | |
1506 | ||
1507 | if (ctf_writer__setup_clock(cw)) { | |
1508 | pr("Failed to setup CTF clock.\n"); | |
1509 | goto err_cleanup; | |
1510 | } | |
1511 | ||
1512 | /* CTF stream class */ | |
1513 | stream_class = bt_ctf_stream_class_create("perf_stream"); | |
1514 | if (!stream_class) { | |
1515 | pr("Failed to create CTF stream class.\n"); | |
1516 | goto err_cleanup; | |
1517 | } | |
1518 | ||
1519 | cw->stream_class = stream_class; | |
1520 | ||
1521 | /* CTF clock stream setup */ | |
1522 | if (bt_ctf_stream_class_set_clock(stream_class, clock)) { | |
1523 | pr("Failed to assign CTF clock to stream class.\n"); | |
1524 | goto err_cleanup; | |
1525 | } | |
1526 | ||
1527 | if (ctf_writer__init_data(cw)) | |
1528 | goto err_cleanup; | |
1529 | ||
1530 | /* Add cpu_id for packet context */ | |
1531 | pkt_ctx_type = bt_ctf_stream_class_get_packet_context_type(stream_class); | |
1532 | if (!pkt_ctx_type) | |
1533 | goto err_cleanup; | |
1534 | ||
1535 | ret = bt_ctf_field_type_structure_add_field(pkt_ctx_type, cw->data.u32, "cpu_id"); | |
1536 | bt_ctf_field_type_put(pkt_ctx_type); | |
1537 | if (ret) | |
1538 | goto err_cleanup; | |
1539 | ||
1540 | /* CTF clock writer setup */ | |
1541 | if (bt_ctf_writer_add_clock(writer, clock)) { | |
1542 | pr("Failed to assign CTF clock to writer.\n"); | |
1543 | goto err_cleanup; | |
1544 | } | |
1545 | ||
1546 | return 0; | |
1547 | ||
1548 | err_cleanup: | |
1549 | ctf_writer__cleanup(cw); | |
1550 | err: | |
1551 | pr_err("Failed to setup CTF writer.\n"); | |
1552 | return -1; | |
1553 | } | |
1554 | ||
1555 | static int ctf_writer__flush_streams(struct ctf_writer *cw) | |
1556 | { | |
1557 | int cpu, ret = 0; | |
1558 | ||
1559 | for (cpu = 0; cpu < cw->stream_cnt && !ret; cpu++) | |
1560 | ret = ctf_stream__flush(cw->stream[cpu]); | |
1561 | ||
1562 | return ret; | |
1563 | } | |
1564 | ||
1565 | static int convert__config(const char *var, const char *value, void *cb) | |
1566 | { | |
1567 | struct convert *c = cb; | |
1568 | ||
1569 | if (!strcmp(var, "convert.queue-size")) | |
1570 | return perf_config_u64(&c->queue_size, var, value); | |
1571 | ||
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | int bt_convert__perf2ctf(const char *input, const char *path, | |
1576 | struct perf_data_convert_opts *opts) | |
1577 | { | |
1578 | struct perf_session *session; | |
1579 | struct perf_data data = { | |
1580 | .path = input, | |
1581 | .mode = PERF_DATA_MODE_READ, | |
1582 | .force = opts->force, | |
1583 | }; | |
1584 | struct convert c = { | |
1585 | .tool = { | |
1586 | .sample = process_sample_event, | |
1587 | .mmap = perf_event__process_mmap, | |
1588 | .mmap2 = perf_event__process_mmap2, | |
1589 | .comm = perf_event__process_comm, | |
1590 | .exit = perf_event__process_exit, | |
1591 | .fork = perf_event__process_fork, | |
1592 | .lost = perf_event__process_lost, | |
1593 | .tracing_data = perf_event__process_tracing_data, | |
1594 | .build_id = perf_event__process_build_id, | |
1595 | .namespaces = perf_event__process_namespaces, | |
1596 | .ordered_events = true, | |
1597 | .ordering_requires_timestamps = true, | |
1598 | }, | |
1599 | }; | |
1600 | struct ctf_writer *cw = &c.writer; | |
1601 | int err; | |
1602 | ||
1603 | if (opts->all) { | |
1604 | c.tool.comm = process_comm_event; | |
1605 | c.tool.exit = process_exit_event; | |
1606 | c.tool.fork = process_fork_event; | |
1607 | c.tool.mmap = process_mmap_event; | |
1608 | c.tool.mmap2 = process_mmap2_event; | |
1609 | } | |
1610 | ||
1611 | err = perf_config(convert__config, &c); | |
1612 | if (err) | |
1613 | return err; | |
1614 | ||
1615 | /* CTF writer */ | |
1616 | if (ctf_writer__init(cw, path)) | |
1617 | return -1; | |
1618 | ||
1619 | err = -1; | |
1620 | /* perf.data session */ | |
1621 | session = perf_session__new(&data, 0, &c.tool); | |
1622 | if (!session) | |
1623 | goto free_writer; | |
1624 | ||
1625 | if (c.queue_size) { | |
1626 | ordered_events__set_alloc_size(&session->ordered_events, | |
1627 | c.queue_size); | |
1628 | } | |
1629 | ||
1630 | /* CTF writer env/clock setup */ | |
1631 | if (ctf_writer__setup_env(cw, session)) | |
1632 | goto free_session; | |
1633 | ||
1634 | /* CTF events setup */ | |
1635 | if (setup_events(cw, session)) | |
1636 | goto free_session; | |
1637 | ||
1638 | if (opts->all && setup_non_sample_events(cw, session)) | |
1639 | goto free_session; | |
1640 | ||
1641 | if (setup_streams(cw, session)) | |
1642 | goto free_session; | |
1643 | ||
1644 | err = perf_session__process_events(session); | |
1645 | if (!err) | |
1646 | err = ctf_writer__flush_streams(cw); | |
1647 | else | |
1648 | pr_err("Error during conversion.\n"); | |
1649 | ||
1650 | fprintf(stderr, | |
1651 | "[ perf data convert: Converted '%s' into CTF data '%s' ]\n", | |
1652 | data.path, path); | |
1653 | ||
1654 | fprintf(stderr, | |
1655 | "[ perf data convert: Converted and wrote %.3f MB (%" PRIu64 " samples", | |
1656 | (double) c.events_size / 1024.0 / 1024.0, | |
1657 | c.events_count); | |
1658 | ||
1659 | if (!c.non_sample_count) | |
1660 | fprintf(stderr, ") ]\n"); | |
1661 | else | |
1662 | fprintf(stderr, ", %" PRIu64 " non-samples) ]\n", c.non_sample_count); | |
1663 | ||
1664 | cleanup_events(session); | |
1665 | perf_session__delete(session); | |
1666 | ctf_writer__cleanup(cw); | |
1667 | ||
1668 | return err; | |
1669 | ||
1670 | free_session: | |
1671 | perf_session__delete(session); | |
1672 | free_writer: | |
1673 | ctf_writer__cleanup(cw); | |
1674 | pr_err("Error during conversion setup.\n"); | |
1675 | return err; | |
1676 | } |