2 * CTF writing support via babeltrace.
4 * Copyright (C) 2014, Jiri Olsa <jolsa@redhat.com>
5 * Copyright (C) 2014, Sebastian Andrzej Siewior <bigeasy@linutronix.de>
7 * Released under the GPL v2. (and only v2, not any later version)
10 #include <linux/compiler.h>
11 #include <babeltrace/ctf-writer/writer.h>
12 #include <babeltrace/ctf-writer/clock.h>
13 #include <babeltrace/ctf-writer/stream.h>
14 #include <babeltrace/ctf-writer/event.h>
15 #include <babeltrace/ctf-writer/event-types.h>
16 #include <babeltrace/ctf-writer/event-fields.h>
17 #include <babeltrace/ctf-ir/utils.h>
18 #include <babeltrace/ctf/events.h>
19 #include <traceevent/event-parse.h>
21 #include "data-convert-bt.h"
30 #define pr_N(n, fmt, ...) \
31 eprintf(n, debug_data_convert, fmt, ##__VA_ARGS__)
33 #define pr(fmt, ...) pr_N(1, pr_fmt(fmt), ##__VA_ARGS__)
34 #define pr2(fmt, ...) pr_N(2, pr_fmt(fmt), ##__VA_ARGS__)
36 #define pr_time2(t, fmt, ...) pr_time_N(2, debug_data_convert, t, pr_fmt(fmt), ##__VA_ARGS__)
39 struct bt_ctf_event_class *event_class;
45 struct bt_ctf_stream *stream;
51 /* writer primitives */
52 struct bt_ctf_writer *writer;
53 struct ctf_stream **stream;
55 struct bt_ctf_stream_class *stream_class;
56 struct bt_ctf_clock *clock;
61 struct bt_ctf_field_type *s64;
62 struct bt_ctf_field_type *u64;
63 struct bt_ctf_field_type *s32;
64 struct bt_ctf_field_type *u32;
65 struct bt_ctf_field_type *string;
66 struct bt_ctf_field_type *u32_hex;
67 struct bt_ctf_field_type *u64_hex;
69 struct bt_ctf_field_type *array[6];
74 struct perf_tool tool;
75 struct ctf_writer writer;
80 /* Ordered events configured queue size. */
84 static int value_set(struct bt_ctf_field_type *type,
85 struct bt_ctf_event *event,
86 const char *name, u64 val)
88 struct bt_ctf_field *field;
89 bool sign = bt_ctf_field_type_integer_get_signed(type);
92 field = bt_ctf_field_create(type);
94 pr_err("failed to create a field %s\n", name);
99 ret = bt_ctf_field_signed_integer_set_value(field, val);
101 pr_err("failed to set field value %s\n", name);
105 ret = bt_ctf_field_unsigned_integer_set_value(field, val);
107 pr_err("failed to set field value %s\n", name);
112 ret = bt_ctf_event_set_payload(event, name, field);
114 pr_err("failed to set payload %s\n", name);
118 pr2(" SET [%s = %" PRIu64 "]\n", name, val);
121 bt_ctf_field_put(field);
125 #define __FUNC_VALUE_SET(_name, _val_type) \
126 static __maybe_unused int value_set_##_name(struct ctf_writer *cw, \
127 struct bt_ctf_event *event, \
131 struct bt_ctf_field_type *type = cw->data._name; \
132 return value_set(type, event, name, (u64) val); \
135 #define FUNC_VALUE_SET(_name) __FUNC_VALUE_SET(_name, _name)
141 __FUNC_VALUE_SET(u64_hex, u64)
143 static struct bt_ctf_field_type*
144 get_tracepoint_field_type(struct ctf_writer *cw, struct format_field *field)
146 unsigned long flags = field->flags;
148 if (flags & FIELD_IS_STRING)
149 return cw->data.string;
151 if (!(flags & FIELD_IS_SIGNED)) {
152 /* unsigned long are mostly pointers */
153 if (flags & FIELD_IS_LONG || flags & FIELD_IS_POINTER)
154 return cw->data.u64_hex;
157 if (flags & FIELD_IS_SIGNED) {
158 if (field->size == 8)
164 if (field->size == 8)
170 static unsigned long long adjust_signedness(unsigned long long value_int, int size)
172 unsigned long long value_mask;
175 * value_mask = (1 << (size * 8 - 1)) - 1.
176 * Directly set value_mask for code readers.
180 value_mask = 0x7fULL;
183 value_mask = 0x7fffULL;
186 value_mask = 0x7fffffffULL;
190 * For 64 bit value, return it self. There is no need
199 /* If it is a positive value, don't adjust. */
200 if ((value_int & (~0ULL - value_mask)) == 0)
203 /* Fill upper part of value_int with 1 to make it a negative long long. */
204 return (value_int & value_mask) | ~value_mask;
207 static int add_tracepoint_field_value(struct ctf_writer *cw,
208 struct bt_ctf_event_class *event_class,
209 struct bt_ctf_event *event,
210 struct perf_sample *sample,
211 struct format_field *fmtf)
213 struct bt_ctf_field_type *type;
214 struct bt_ctf_field *array_field;
215 struct bt_ctf_field *field;
216 const char *name = fmtf->name;
217 void *data = sample->raw_data;
218 unsigned long flags = fmtf->flags;
219 unsigned int n_items;
226 offset = fmtf->offset;
228 if (flags & FIELD_IS_STRING)
229 flags &= ~FIELD_IS_ARRAY;
231 if (flags & FIELD_IS_DYNAMIC) {
232 unsigned long long tmp_val;
234 tmp_val = pevent_read_number(fmtf->event->pevent,
241 if (flags & FIELD_IS_ARRAY) {
243 type = bt_ctf_event_class_get_field_by_name(
245 array_field = bt_ctf_field_create(type);
246 bt_ctf_field_type_put(type);
248 pr_err("Failed to create array type %s\n", name);
252 len = fmtf->size / fmtf->arraylen;
253 n_items = fmtf->arraylen;
259 type = get_tracepoint_field_type(cw, fmtf);
261 for (i = 0; i < n_items; i++) {
262 if (flags & FIELD_IS_ARRAY)
263 field = bt_ctf_field_array_get_field(array_field, i);
265 field = bt_ctf_field_create(type);
268 pr_err("failed to create a field %s\n", name);
272 if (flags & FIELD_IS_STRING)
273 ret = bt_ctf_field_string_set_value(field,
274 data + offset + i * len);
276 unsigned long long value_int;
278 value_int = pevent_read_number(
280 data + offset + i * len, len);
282 if (!(flags & FIELD_IS_SIGNED))
283 ret = bt_ctf_field_unsigned_integer_set_value(
286 ret = bt_ctf_field_signed_integer_set_value(
287 field, adjust_signedness(value_int, len));
291 pr_err("failed to set file value %s\n", name);
294 if (!(flags & FIELD_IS_ARRAY)) {
295 ret = bt_ctf_event_set_payload(event, name, field);
297 pr_err("failed to set payload %s\n", name);
301 bt_ctf_field_put(field);
303 if (flags & FIELD_IS_ARRAY) {
304 ret = bt_ctf_event_set_payload(event, name, array_field);
306 pr_err("Failed add payload array %s\n", name);
309 bt_ctf_field_put(array_field);
314 bt_ctf_field_put(field);
318 static int add_tracepoint_fields_values(struct ctf_writer *cw,
319 struct bt_ctf_event_class *event_class,
320 struct bt_ctf_event *event,
321 struct format_field *fields,
322 struct perf_sample *sample)
324 struct format_field *field;
327 for (field = fields; field; field = field->next) {
328 ret = add_tracepoint_field_value(cw, event_class, event, sample,
336 static int add_tracepoint_values(struct ctf_writer *cw,
337 struct bt_ctf_event_class *event_class,
338 struct bt_ctf_event *event,
339 struct perf_evsel *evsel,
340 struct perf_sample *sample)
342 struct format_field *common_fields = evsel->tp_format->format.common_fields;
343 struct format_field *fields = evsel->tp_format->format.fields;
346 ret = add_tracepoint_fields_values(cw, event_class, event,
347 common_fields, sample);
349 ret = add_tracepoint_fields_values(cw, event_class, event,
355 static int add_generic_values(struct ctf_writer *cw,
356 struct bt_ctf_event *event,
357 struct perf_evsel *evsel,
358 struct perf_sample *sample)
360 u64 type = evsel->attr.sample_type;
365 * PERF_SAMPLE_TIME - not needed as we have it in
367 * PERF_SAMPLE_READ - TODO
368 * PERF_SAMPLE_CALLCHAIN - TODO
369 * PERF_SAMPLE_RAW - tracepoint fields are handled separately
370 * PERF_SAMPLE_BRANCH_STACK - TODO
371 * PERF_SAMPLE_REGS_USER - TODO
372 * PERF_SAMPLE_STACK_USER - TODO
375 if (type & PERF_SAMPLE_IP) {
376 ret = value_set_u64_hex(cw, event, "perf_ip", sample->ip);
381 if (type & PERF_SAMPLE_TID) {
382 ret = value_set_s32(cw, event, "perf_tid", sample->tid);
386 ret = value_set_s32(cw, event, "perf_pid", sample->pid);
391 if ((type & PERF_SAMPLE_ID) ||
392 (type & PERF_SAMPLE_IDENTIFIER)) {
393 ret = value_set_u64(cw, event, "perf_id", sample->id);
398 if (type & PERF_SAMPLE_STREAM_ID) {
399 ret = value_set_u64(cw, event, "perf_stream_id", sample->stream_id);
404 if (type & PERF_SAMPLE_PERIOD) {
405 ret = value_set_u64(cw, event, "perf_period", sample->period);
410 if (type & PERF_SAMPLE_WEIGHT) {
411 ret = value_set_u64(cw, event, "perf_weight", sample->weight);
416 if (type & PERF_SAMPLE_DATA_SRC) {
417 ret = value_set_u64(cw, event, "perf_data_src",
423 if (type & PERF_SAMPLE_TRANSACTION) {
424 ret = value_set_u64(cw, event, "perf_transaction",
425 sample->transaction);
433 static int ctf_stream__flush(struct ctf_stream *cs)
438 err = bt_ctf_stream_flush(cs->stream);
440 pr_err("CTF stream %d flush failed\n", cs->cpu);
442 pr("Flush stream for cpu %d (%u samples)\n",
451 static struct ctf_stream *ctf_stream__create(struct ctf_writer *cw, int cpu)
453 struct ctf_stream *cs;
454 struct bt_ctf_field *pkt_ctx = NULL;
455 struct bt_ctf_field *cpu_field = NULL;
456 struct bt_ctf_stream *stream = NULL;
459 cs = zalloc(sizeof(*cs));
461 pr_err("Failed to allocate ctf stream\n");
465 stream = bt_ctf_writer_create_stream(cw->writer, cw->stream_class);
467 pr_err("Failed to create CTF stream\n");
471 pkt_ctx = bt_ctf_stream_get_packet_context(stream);
473 pr_err("Failed to obtain packet context\n");
477 cpu_field = bt_ctf_field_structure_get_field(pkt_ctx, "cpu_id");
478 bt_ctf_field_put(pkt_ctx);
480 pr_err("Failed to obtain cpu field\n");
484 ret = bt_ctf_field_unsigned_integer_set_value(cpu_field, (u32) cpu);
486 pr_err("Failed to update CPU number\n");
490 bt_ctf_field_put(cpu_field);
498 bt_ctf_field_put(cpu_field);
500 bt_ctf_stream_put(stream);
506 static void ctf_stream__delete(struct ctf_stream *cs)
509 bt_ctf_stream_put(cs->stream);
514 static struct ctf_stream *ctf_stream(struct ctf_writer *cw, int cpu)
516 struct ctf_stream *cs = cw->stream[cpu];
519 cs = ctf_stream__create(cw, cpu);
520 cw->stream[cpu] = cs;
526 static int get_sample_cpu(struct ctf_writer *cw, struct perf_sample *sample,
527 struct perf_evsel *evsel)
531 if (evsel->attr.sample_type & PERF_SAMPLE_CPU)
534 if (cpu > cw->stream_cnt) {
535 pr_err("Event was recorded for CPU %d, limit is at %d.\n",
536 cpu, cw->stream_cnt);
543 #define STREAM_FLUSH_COUNT 100000
546 * Currently we have no other way to determine the
547 * time for the stream flush other than keep track
548 * of the number of events and check it against
551 static bool is_flush_needed(struct ctf_stream *cs)
553 return cs->count >= STREAM_FLUSH_COUNT;
556 static int process_sample_event(struct perf_tool *tool,
557 union perf_event *_event __maybe_unused,
558 struct perf_sample *sample,
559 struct perf_evsel *evsel,
560 struct machine *machine __maybe_unused)
562 struct convert *c = container_of(tool, struct convert, tool);
563 struct evsel_priv *priv = evsel->priv;
564 struct ctf_writer *cw = &c->writer;
565 struct ctf_stream *cs;
566 struct bt_ctf_event_class *event_class;
567 struct bt_ctf_event *event;
570 if (WARN_ONCE(!priv, "Failed to setup all events.\n"))
573 event_class = priv->event_class;
577 c->events_size += _event->header.size;
579 pr_time2(sample->time, "sample %" PRIu64 "\n", c->events_count);
581 event = bt_ctf_event_create(event_class);
583 pr_err("Failed to create an CTF event\n");
587 bt_ctf_clock_set_time(cw->clock, sample->time);
589 ret = add_generic_values(cw, event, evsel, sample);
593 if (evsel->attr.type == PERF_TYPE_TRACEPOINT) {
594 ret = add_tracepoint_values(cw, event_class, event,
600 cs = ctf_stream(cw, get_sample_cpu(cw, sample, evsel));
602 if (is_flush_needed(cs))
603 ctf_stream__flush(cs);
606 bt_ctf_stream_append_event(cs->stream, event);
609 bt_ctf_event_put(event);
613 /* If dup < 0, add a prefix. Else, add _dupl_X suffix. */
614 static char *change_name(char *name, char *orig_name, int dup)
616 char *new_name = NULL;
625 * Add '_' prefix to potential keywork. According to
626 * Mathieu Desnoyers (https://lkml.org/lkml/2015/1/23/652),
627 * futher CTF spec updating may require us to use '$'.
630 len = strlen(name) + sizeof("_");
632 len = strlen(orig_name) + sizeof("_dupl_X");
634 new_name = malloc(len);
639 snprintf(new_name, len, "_%s", name);
641 snprintf(new_name, len, "%s_dupl_%d", orig_name, dup);
644 if (name != orig_name)
649 static int event_class_add_field(struct bt_ctf_event_class *event_class,
650 struct bt_ctf_field_type *type,
651 struct format_field *field)
653 struct bt_ctf_field_type *t = NULL;
658 /* alias was already assigned */
659 if (field->alias != field->name)
660 return bt_ctf_event_class_add_field(event_class, type,
661 (char *)field->alias);
665 /* If 'name' is a keywork, add prefix. */
666 if (bt_ctf_validate_identifier(name))
667 name = change_name(name, field->name, -1);
670 pr_err("Failed to fix invalid identifier.");
673 while ((t = bt_ctf_event_class_get_field_by_name(event_class, name))) {
674 bt_ctf_field_type_put(t);
675 name = change_name(name, field->name, dup++);
677 pr_err("Failed to create dup name for '%s'\n", field->name);
682 ret = bt_ctf_event_class_add_field(event_class, type, name);
689 static int add_tracepoint_fields_types(struct ctf_writer *cw,
690 struct format_field *fields,
691 struct bt_ctf_event_class *event_class)
693 struct format_field *field;
696 for (field = fields; field; field = field->next) {
697 struct bt_ctf_field_type *type;
698 unsigned long flags = field->flags;
700 pr2(" field '%s'\n", field->name);
702 type = get_tracepoint_field_type(cw, field);
707 * A string is an array of chars. For this we use the string
708 * type and don't care that it is an array. What we don't
709 * support is an array of strings.
711 if (flags & FIELD_IS_STRING)
712 flags &= ~FIELD_IS_ARRAY;
714 if (flags & FIELD_IS_ARRAY)
715 type = bt_ctf_field_type_array_create(type, field->arraylen);
717 ret = event_class_add_field(event_class, type, field);
719 if (flags & FIELD_IS_ARRAY)
720 bt_ctf_field_type_put(type);
723 pr_err("Failed to add field '%s': %d\n",
732 static int add_tracepoint_types(struct ctf_writer *cw,
733 struct perf_evsel *evsel,
734 struct bt_ctf_event_class *class)
736 struct format_field *common_fields = evsel->tp_format->format.common_fields;
737 struct format_field *fields = evsel->tp_format->format.fields;
740 ret = add_tracepoint_fields_types(cw, common_fields, class);
742 ret = add_tracepoint_fields_types(cw, fields, class);
747 static int add_generic_types(struct ctf_writer *cw, struct perf_evsel *evsel,
748 struct bt_ctf_event_class *event_class)
750 u64 type = evsel->attr.sample_type;
754 * PERF_SAMPLE_TIME - not needed as we have it in
756 * PERF_SAMPLE_READ - TODO
757 * PERF_SAMPLE_CALLCHAIN - TODO
758 * PERF_SAMPLE_RAW - tracepoint fields are handled separately
759 * PERF_SAMPLE_BRANCH_STACK - TODO
760 * PERF_SAMPLE_REGS_USER - TODO
761 * PERF_SAMPLE_STACK_USER - TODO
764 #define ADD_FIELD(cl, t, n) \
766 pr2(" field '%s'\n", n); \
767 if (bt_ctf_event_class_add_field(cl, t, n)) { \
768 pr_err("Failed to add field '%s';\n", n); \
773 if (type & PERF_SAMPLE_IP)
774 ADD_FIELD(event_class, cw->data.u64_hex, "perf_ip");
776 if (type & PERF_SAMPLE_TID) {
777 ADD_FIELD(event_class, cw->data.s32, "perf_tid");
778 ADD_FIELD(event_class, cw->data.s32, "perf_pid");
781 if ((type & PERF_SAMPLE_ID) ||
782 (type & PERF_SAMPLE_IDENTIFIER))
783 ADD_FIELD(event_class, cw->data.u64, "perf_id");
785 if (type & PERF_SAMPLE_STREAM_ID)
786 ADD_FIELD(event_class, cw->data.u64, "perf_stream_id");
788 if (type & PERF_SAMPLE_PERIOD)
789 ADD_FIELD(event_class, cw->data.u64, "perf_period");
791 if (type & PERF_SAMPLE_WEIGHT)
792 ADD_FIELD(event_class, cw->data.u64, "perf_weight");
794 if (type & PERF_SAMPLE_DATA_SRC)
795 ADD_FIELD(event_class, cw->data.u64, "perf_data_src");
797 if (type & PERF_SAMPLE_TRANSACTION)
798 ADD_FIELD(event_class, cw->data.u64, "perf_transaction");
804 static int add_event(struct ctf_writer *cw, struct perf_evsel *evsel)
806 struct bt_ctf_event_class *event_class;
807 struct evsel_priv *priv;
808 const char *name = perf_evsel__name(evsel);
811 pr("Adding event '%s' (type %d)\n", name, evsel->attr.type);
813 event_class = bt_ctf_event_class_create(name);
817 ret = add_generic_types(cw, evsel, event_class);
821 if (evsel->attr.type == PERF_TYPE_TRACEPOINT) {
822 ret = add_tracepoint_types(cw, evsel, event_class);
827 ret = bt_ctf_stream_class_add_event_class(cw->stream_class, event_class);
829 pr("Failed to add event class into stream.\n");
833 priv = malloc(sizeof(*priv));
837 priv->event_class = event_class;
842 bt_ctf_event_class_put(event_class);
843 pr_err("Failed to add event '%s'.\n", name);
847 static int setup_events(struct ctf_writer *cw, struct perf_session *session)
849 struct perf_evlist *evlist = session->evlist;
850 struct perf_evsel *evsel;
853 evlist__for_each(evlist, evsel) {
854 ret = add_event(cw, evsel);
861 static int setup_streams(struct ctf_writer *cw, struct perf_session *session)
863 struct ctf_stream **stream;
864 struct perf_header *ph = &session->header;
868 * Try to get the number of cpus used in the data file,
869 * if not present fallback to the MAX_CPUS.
871 ncpus = ph->env.nr_cpus_avail ?: MAX_CPUS;
873 stream = zalloc(sizeof(*stream) * ncpus);
875 pr_err("Failed to allocate streams.\n");
880 cw->stream_cnt = ncpus;
884 static void free_streams(struct ctf_writer *cw)
888 for (cpu = 0; cpu < cw->stream_cnt; cpu++)
889 ctf_stream__delete(cw->stream[cpu]);
894 static int ctf_writer__setup_env(struct ctf_writer *cw,
895 struct perf_session *session)
897 struct perf_header *header = &session->header;
898 struct bt_ctf_writer *writer = cw->writer;
900 #define ADD(__n, __v) \
902 if (bt_ctf_writer_add_environment_field(writer, __n, __v)) \
906 ADD("host", header->env.hostname);
907 ADD("sysname", "Linux");
908 ADD("release", header->env.os_release);
909 ADD("version", header->env.version);
910 ADD("machine", header->env.arch);
911 ADD("domain", "kernel");
912 ADD("tracer_name", "perf");
918 static int ctf_writer__setup_clock(struct ctf_writer *cw)
920 struct bt_ctf_clock *clock = cw->clock;
922 bt_ctf_clock_set_description(clock, "perf clock");
924 #define SET(__n, __v) \
926 if (bt_ctf_clock_set_##__n(clock, __v)) \
930 SET(frequency, 1000000000);
940 static struct bt_ctf_field_type *create_int_type(int size, bool sign, bool hex)
942 struct bt_ctf_field_type *type;
944 type = bt_ctf_field_type_integer_create(size);
949 bt_ctf_field_type_integer_set_signed(type, 1))
953 bt_ctf_field_type_integer_set_base(type, BT_CTF_INTEGER_BASE_HEXADECIMAL))
956 pr2("Created type: INTEGER %d-bit %ssigned %s\n",
957 size, sign ? "un" : "", hex ? "hex" : "");
961 bt_ctf_field_type_put(type);
965 static void ctf_writer__cleanup_data(struct ctf_writer *cw)
969 for (i = 0; i < ARRAY_SIZE(cw->data.array); i++)
970 bt_ctf_field_type_put(cw->data.array[i]);
973 static int ctf_writer__init_data(struct ctf_writer *cw)
975 #define CREATE_INT_TYPE(type, size, sign, hex) \
977 (type) = create_int_type(size, sign, hex); \
982 CREATE_INT_TYPE(cw->data.s64, 64, true, false);
983 CREATE_INT_TYPE(cw->data.u64, 64, false, false);
984 CREATE_INT_TYPE(cw->data.s32, 32, true, false);
985 CREATE_INT_TYPE(cw->data.u32, 32, false, false);
986 CREATE_INT_TYPE(cw->data.u32_hex, 32, false, true);
987 CREATE_INT_TYPE(cw->data.u64_hex, 64, false, true);
989 cw->data.string = bt_ctf_field_type_string_create();
994 ctf_writer__cleanup_data(cw);
995 pr_err("Failed to create data types.\n");
999 static void ctf_writer__cleanup(struct ctf_writer *cw)
1001 ctf_writer__cleanup_data(cw);
1003 bt_ctf_clock_put(cw->clock);
1005 bt_ctf_stream_class_put(cw->stream_class);
1006 bt_ctf_writer_put(cw->writer);
1008 /* and NULL all the pointers */
1009 memset(cw, 0, sizeof(*cw));
1012 static int ctf_writer__init(struct ctf_writer *cw, const char *path)
1014 struct bt_ctf_writer *writer;
1015 struct bt_ctf_stream_class *stream_class;
1016 struct bt_ctf_clock *clock;
1017 struct bt_ctf_field_type *pkt_ctx_type;
1021 writer = bt_ctf_writer_create(path);
1025 cw->writer = writer;
1028 clock = bt_ctf_clock_create("perf_clock");
1030 pr("Failed to create CTF clock.\n");
1036 if (ctf_writer__setup_clock(cw)) {
1037 pr("Failed to setup CTF clock.\n");
1041 /* CTF stream class */
1042 stream_class = bt_ctf_stream_class_create("perf_stream");
1043 if (!stream_class) {
1044 pr("Failed to create CTF stream class.\n");
1048 cw->stream_class = stream_class;
1050 /* CTF clock stream setup */
1051 if (bt_ctf_stream_class_set_clock(stream_class, clock)) {
1052 pr("Failed to assign CTF clock to stream class.\n");
1056 if (ctf_writer__init_data(cw))
1059 /* Add cpu_id for packet context */
1060 pkt_ctx_type = bt_ctf_stream_class_get_packet_context_type(stream_class);
1064 ret = bt_ctf_field_type_structure_add_field(pkt_ctx_type, cw->data.u32, "cpu_id");
1065 bt_ctf_field_type_put(pkt_ctx_type);
1069 /* CTF clock writer setup */
1070 if (bt_ctf_writer_add_clock(writer, clock)) {
1071 pr("Failed to assign CTF clock to writer.\n");
1078 ctf_writer__cleanup(cw);
1080 pr_err("Failed to setup CTF writer.\n");
1084 static int ctf_writer__flush_streams(struct ctf_writer *cw)
1088 for (cpu = 0; cpu < cw->stream_cnt && !ret; cpu++)
1089 ret = ctf_stream__flush(cw->stream[cpu]);
1094 static int convert__config(const char *var, const char *value, void *cb)
1096 struct convert *c = cb;
1098 if (!strcmp(var, "convert.queue-size")) {
1099 c->queue_size = perf_config_u64(var, value);
1103 return perf_default_config(var, value, cb);
1106 int bt_convert__perf2ctf(const char *input, const char *path, bool force)
1108 struct perf_session *session;
1109 struct perf_data_file file = {
1111 .mode = PERF_DATA_MODE_READ,
1114 struct convert c = {
1116 .sample = process_sample_event,
1117 .mmap = perf_event__process_mmap,
1118 .mmap2 = perf_event__process_mmap2,
1119 .comm = perf_event__process_comm,
1120 .exit = perf_event__process_exit,
1121 .fork = perf_event__process_fork,
1122 .lost = perf_event__process_lost,
1123 .tracing_data = perf_event__process_tracing_data,
1124 .build_id = perf_event__process_build_id,
1125 .ordered_events = true,
1126 .ordering_requires_timestamps = true,
1129 struct ctf_writer *cw = &c.writer;
1132 perf_config(convert__config, &c);
1135 if (ctf_writer__init(cw, path))
1138 /* perf.data session */
1139 session = perf_session__new(&file, 0, &c.tool);
1144 ordered_events__set_alloc_size(&session->ordered_events,
1148 /* CTF writer env/clock setup */
1149 if (ctf_writer__setup_env(cw, session))
1152 /* CTF events setup */
1153 if (setup_events(cw, session))
1156 if (setup_streams(cw, session))
1159 err = perf_session__process_events(session);
1161 err = ctf_writer__flush_streams(cw);
1163 pr_err("Error during conversion.\n");
1166 "[ perf data convert: Converted '%s' into CTF data '%s' ]\n",
1170 "[ perf data convert: Converted and wrote %.3f MB (%" PRIu64 " samples) ]\n",
1171 (double) c.events_size / 1024.0 / 1024.0,
1174 perf_session__delete(session);
1175 ctf_writer__cleanup(cw);
1180 perf_session__delete(session);
1182 ctf_writer__cleanup(cw);
1183 pr_err("Error during conversion setup.\n");