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 string_set_value(struct bt_ctf_field
*field
, const char *string
)
210 size_t len
= strlen(string
), i
, p
;
213 for (i
= p
= 0; i
< len
; i
++, p
++) {
214 if (isprint(string
[i
])) {
217 buffer
[p
] = string
[i
];
221 snprintf(numstr
, sizeof(numstr
), "\\x%02x",
222 (unsigned int)(string
[i
]) & 0xff);
225 buffer
= zalloc(i
+ (len
- i
) * 4 + 2);
227 pr_err("failed to set unprintable string '%s'\n", string
);
228 return bt_ctf_field_string_set_value(field
, "UNPRINTABLE-STRING");
231 strncpy(buffer
, string
, i
);
233 strncat(buffer
+ p
, numstr
, 4);
239 return bt_ctf_field_string_set_value(field
, string
);
240 err
= bt_ctf_field_string_set_value(field
, buffer
);
245 static int add_tracepoint_field_value(struct ctf_writer
*cw
,
246 struct bt_ctf_event_class
*event_class
,
247 struct bt_ctf_event
*event
,
248 struct perf_sample
*sample
,
249 struct format_field
*fmtf
)
251 struct bt_ctf_field_type
*type
;
252 struct bt_ctf_field
*array_field
;
253 struct bt_ctf_field
*field
;
254 const char *name
= fmtf
->name
;
255 void *data
= sample
->raw_data
;
256 unsigned long flags
= fmtf
->flags
;
257 unsigned int n_items
;
264 offset
= fmtf
->offset
;
266 if (flags
& FIELD_IS_STRING
)
267 flags
&= ~FIELD_IS_ARRAY
;
269 if (flags
& FIELD_IS_DYNAMIC
) {
270 unsigned long long tmp_val
;
272 tmp_val
= pevent_read_number(fmtf
->event
->pevent
,
279 if (flags
& FIELD_IS_ARRAY
) {
281 type
= bt_ctf_event_class_get_field_by_name(
283 array_field
= bt_ctf_field_create(type
);
284 bt_ctf_field_type_put(type
);
286 pr_err("Failed to create array type %s\n", name
);
290 len
= fmtf
->size
/ fmtf
->arraylen
;
291 n_items
= fmtf
->arraylen
;
297 type
= get_tracepoint_field_type(cw
, fmtf
);
299 for (i
= 0; i
< n_items
; i
++) {
300 if (flags
& FIELD_IS_ARRAY
)
301 field
= bt_ctf_field_array_get_field(array_field
, i
);
303 field
= bt_ctf_field_create(type
);
306 pr_err("failed to create a field %s\n", name
);
310 if (flags
& FIELD_IS_STRING
)
311 ret
= string_set_value(field
, data
+ offset
+ i
* len
);
313 unsigned long long value_int
;
315 value_int
= pevent_read_number(
317 data
+ offset
+ i
* len
, len
);
319 if (!(flags
& FIELD_IS_SIGNED
))
320 ret
= bt_ctf_field_unsigned_integer_set_value(
323 ret
= bt_ctf_field_signed_integer_set_value(
324 field
, adjust_signedness(value_int
, len
));
328 pr_err("failed to set file value %s\n", name
);
331 if (!(flags
& FIELD_IS_ARRAY
)) {
332 ret
= bt_ctf_event_set_payload(event
, name
, field
);
334 pr_err("failed to set payload %s\n", name
);
338 bt_ctf_field_put(field
);
340 if (flags
& FIELD_IS_ARRAY
) {
341 ret
= bt_ctf_event_set_payload(event
, name
, array_field
);
343 pr_err("Failed add payload array %s\n", name
);
346 bt_ctf_field_put(array_field
);
351 bt_ctf_field_put(field
);
355 static int add_tracepoint_fields_values(struct ctf_writer
*cw
,
356 struct bt_ctf_event_class
*event_class
,
357 struct bt_ctf_event
*event
,
358 struct format_field
*fields
,
359 struct perf_sample
*sample
)
361 struct format_field
*field
;
364 for (field
= fields
; field
; field
= field
->next
) {
365 ret
= add_tracepoint_field_value(cw
, event_class
, event
, sample
,
373 static int add_tracepoint_values(struct ctf_writer
*cw
,
374 struct bt_ctf_event_class
*event_class
,
375 struct bt_ctf_event
*event
,
376 struct perf_evsel
*evsel
,
377 struct perf_sample
*sample
)
379 struct format_field
*common_fields
= evsel
->tp_format
->format
.common_fields
;
380 struct format_field
*fields
= evsel
->tp_format
->format
.fields
;
383 ret
= add_tracepoint_fields_values(cw
, event_class
, event
,
384 common_fields
, sample
);
386 ret
= add_tracepoint_fields_values(cw
, event_class
, event
,
393 add_bpf_output_values(struct bt_ctf_event_class
*event_class
,
394 struct bt_ctf_event
*event
,
395 struct perf_sample
*sample
)
397 struct bt_ctf_field_type
*len_type
, *seq_type
;
398 struct bt_ctf_field
*len_field
, *seq_field
;
399 unsigned int raw_size
= sample
->raw_size
;
400 unsigned int nr_elements
= raw_size
/ sizeof(u32
);
404 if (nr_elements
* sizeof(u32
) != raw_size
)
405 pr_warning("Incorrect raw_size (%u) in bpf output event, skip %lu bytes\n",
406 raw_size
, nr_elements
* sizeof(u32
) - raw_size
);
408 len_type
= bt_ctf_event_class_get_field_by_name(event_class
, "raw_len");
409 len_field
= bt_ctf_field_create(len_type
);
411 pr_err("failed to create 'raw_len' for bpf output event\n");
416 ret
= bt_ctf_field_unsigned_integer_set_value(len_field
, nr_elements
);
418 pr_err("failed to set field value for raw_len\n");
421 ret
= bt_ctf_event_set_payload(event
, "raw_len", len_field
);
423 pr_err("failed to set payload to raw_len\n");
427 seq_type
= bt_ctf_event_class_get_field_by_name(event_class
, "raw_data");
428 seq_field
= bt_ctf_field_create(seq_type
);
430 pr_err("failed to create 'raw_data' for bpf output event\n");
435 ret
= bt_ctf_field_sequence_set_length(seq_field
, len_field
);
437 pr_err("failed to set length of 'raw_data'\n");
441 for (i
= 0; i
< nr_elements
; i
++) {
442 struct bt_ctf_field
*elem_field
=
443 bt_ctf_field_sequence_get_field(seq_field
, i
);
445 ret
= bt_ctf_field_unsigned_integer_set_value(elem_field
,
446 ((u32
*)(sample
->raw_data
))[i
]);
448 bt_ctf_field_put(elem_field
);
450 pr_err("failed to set raw_data[%d]\n", i
);
455 ret
= bt_ctf_event_set_payload(event
, "raw_data", seq_field
);
457 pr_err("failed to set payload for raw_data\n");
460 bt_ctf_field_put(seq_field
);
462 bt_ctf_field_type_put(seq_type
);
464 bt_ctf_field_put(len_field
);
466 bt_ctf_field_type_put(len_type
);
470 static int add_generic_values(struct ctf_writer
*cw
,
471 struct bt_ctf_event
*event
,
472 struct perf_evsel
*evsel
,
473 struct perf_sample
*sample
)
475 u64 type
= evsel
->attr
.sample_type
;
480 * PERF_SAMPLE_TIME - not needed as we have it in
482 * PERF_SAMPLE_READ - TODO
483 * PERF_SAMPLE_CALLCHAIN - TODO
484 * PERF_SAMPLE_RAW - tracepoint fields are handled separately
485 * PERF_SAMPLE_BRANCH_STACK - TODO
486 * PERF_SAMPLE_REGS_USER - TODO
487 * PERF_SAMPLE_STACK_USER - TODO
490 if (type
& PERF_SAMPLE_IP
) {
491 ret
= value_set_u64_hex(cw
, event
, "perf_ip", sample
->ip
);
496 if (type
& PERF_SAMPLE_TID
) {
497 ret
= value_set_s32(cw
, event
, "perf_tid", sample
->tid
);
501 ret
= value_set_s32(cw
, event
, "perf_pid", sample
->pid
);
506 if ((type
& PERF_SAMPLE_ID
) ||
507 (type
& PERF_SAMPLE_IDENTIFIER
)) {
508 ret
= value_set_u64(cw
, event
, "perf_id", sample
->id
);
513 if (type
& PERF_SAMPLE_STREAM_ID
) {
514 ret
= value_set_u64(cw
, event
, "perf_stream_id", sample
->stream_id
);
519 if (type
& PERF_SAMPLE_PERIOD
) {
520 ret
= value_set_u64(cw
, event
, "perf_period", sample
->period
);
525 if (type
& PERF_SAMPLE_WEIGHT
) {
526 ret
= value_set_u64(cw
, event
, "perf_weight", sample
->weight
);
531 if (type
& PERF_SAMPLE_DATA_SRC
) {
532 ret
= value_set_u64(cw
, event
, "perf_data_src",
538 if (type
& PERF_SAMPLE_TRANSACTION
) {
539 ret
= value_set_u64(cw
, event
, "perf_transaction",
540 sample
->transaction
);
548 static int ctf_stream__flush(struct ctf_stream
*cs
)
553 err
= bt_ctf_stream_flush(cs
->stream
);
555 pr_err("CTF stream %d flush failed\n", cs
->cpu
);
557 pr("Flush stream for cpu %d (%u samples)\n",
566 static struct ctf_stream
*ctf_stream__create(struct ctf_writer
*cw
, int cpu
)
568 struct ctf_stream
*cs
;
569 struct bt_ctf_field
*pkt_ctx
= NULL
;
570 struct bt_ctf_field
*cpu_field
= NULL
;
571 struct bt_ctf_stream
*stream
= NULL
;
574 cs
= zalloc(sizeof(*cs
));
576 pr_err("Failed to allocate ctf stream\n");
580 stream
= bt_ctf_writer_create_stream(cw
->writer
, cw
->stream_class
);
582 pr_err("Failed to create CTF stream\n");
586 pkt_ctx
= bt_ctf_stream_get_packet_context(stream
);
588 pr_err("Failed to obtain packet context\n");
592 cpu_field
= bt_ctf_field_structure_get_field(pkt_ctx
, "cpu_id");
593 bt_ctf_field_put(pkt_ctx
);
595 pr_err("Failed to obtain cpu field\n");
599 ret
= bt_ctf_field_unsigned_integer_set_value(cpu_field
, (u32
) cpu
);
601 pr_err("Failed to update CPU number\n");
605 bt_ctf_field_put(cpu_field
);
613 bt_ctf_field_put(cpu_field
);
615 bt_ctf_stream_put(stream
);
621 static void ctf_stream__delete(struct ctf_stream
*cs
)
624 bt_ctf_stream_put(cs
->stream
);
629 static struct ctf_stream
*ctf_stream(struct ctf_writer
*cw
, int cpu
)
631 struct ctf_stream
*cs
= cw
->stream
[cpu
];
634 cs
= ctf_stream__create(cw
, cpu
);
635 cw
->stream
[cpu
] = cs
;
641 static int get_sample_cpu(struct ctf_writer
*cw
, struct perf_sample
*sample
,
642 struct perf_evsel
*evsel
)
646 if (evsel
->attr
.sample_type
& PERF_SAMPLE_CPU
)
649 if (cpu
> cw
->stream_cnt
) {
650 pr_err("Event was recorded for CPU %d, limit is at %d.\n",
651 cpu
, cw
->stream_cnt
);
658 #define STREAM_FLUSH_COUNT 100000
661 * Currently we have no other way to determine the
662 * time for the stream flush other than keep track
663 * of the number of events and check it against
666 static bool is_flush_needed(struct ctf_stream
*cs
)
668 return cs
->count
>= STREAM_FLUSH_COUNT
;
671 static int process_sample_event(struct perf_tool
*tool
,
672 union perf_event
*_event
,
673 struct perf_sample
*sample
,
674 struct perf_evsel
*evsel
,
675 struct machine
*machine __maybe_unused
)
677 struct convert
*c
= container_of(tool
, struct convert
, tool
);
678 struct evsel_priv
*priv
= evsel
->priv
;
679 struct ctf_writer
*cw
= &c
->writer
;
680 struct ctf_stream
*cs
;
681 struct bt_ctf_event_class
*event_class
;
682 struct bt_ctf_event
*event
;
685 if (WARN_ONCE(!priv
, "Failed to setup all events.\n"))
688 event_class
= priv
->event_class
;
692 c
->events_size
+= _event
->header
.size
;
694 pr_time2(sample
->time
, "sample %" PRIu64
"\n", c
->events_count
);
696 event
= bt_ctf_event_create(event_class
);
698 pr_err("Failed to create an CTF event\n");
702 bt_ctf_clock_set_time(cw
->clock
, sample
->time
);
704 ret
= add_generic_values(cw
, event
, evsel
, sample
);
708 if (evsel
->attr
.type
== PERF_TYPE_TRACEPOINT
) {
709 ret
= add_tracepoint_values(cw
, event_class
, event
,
715 if (perf_evsel__is_bpf_output(evsel
)) {
716 ret
= add_bpf_output_values(event_class
, event
, sample
);
721 cs
= ctf_stream(cw
, get_sample_cpu(cw
, sample
, evsel
));
723 if (is_flush_needed(cs
))
724 ctf_stream__flush(cs
);
727 bt_ctf_stream_append_event(cs
->stream
, event
);
730 bt_ctf_event_put(event
);
734 /* If dup < 0, add a prefix. Else, add _dupl_X suffix. */
735 static char *change_name(char *name
, char *orig_name
, int dup
)
737 char *new_name
= NULL
;
746 * Add '_' prefix to potential keywork. According to
747 * Mathieu Desnoyers (https://lkml.org/lkml/2015/1/23/652),
748 * futher CTF spec updating may require us to use '$'.
751 len
= strlen(name
) + sizeof("_");
753 len
= strlen(orig_name
) + sizeof("_dupl_X");
755 new_name
= malloc(len
);
760 snprintf(new_name
, len
, "_%s", name
);
762 snprintf(new_name
, len
, "%s_dupl_%d", orig_name
, dup
);
765 if (name
!= orig_name
)
770 static int event_class_add_field(struct bt_ctf_event_class
*event_class
,
771 struct bt_ctf_field_type
*type
,
772 struct format_field
*field
)
774 struct bt_ctf_field_type
*t
= NULL
;
779 /* alias was already assigned */
780 if (field
->alias
!= field
->name
)
781 return bt_ctf_event_class_add_field(event_class
, type
,
782 (char *)field
->alias
);
786 /* If 'name' is a keywork, add prefix. */
787 if (bt_ctf_validate_identifier(name
))
788 name
= change_name(name
, field
->name
, -1);
791 pr_err("Failed to fix invalid identifier.");
794 while ((t
= bt_ctf_event_class_get_field_by_name(event_class
, name
))) {
795 bt_ctf_field_type_put(t
);
796 name
= change_name(name
, field
->name
, dup
++);
798 pr_err("Failed to create dup name for '%s'\n", field
->name
);
803 ret
= bt_ctf_event_class_add_field(event_class
, type
, name
);
810 static int add_tracepoint_fields_types(struct ctf_writer
*cw
,
811 struct format_field
*fields
,
812 struct bt_ctf_event_class
*event_class
)
814 struct format_field
*field
;
817 for (field
= fields
; field
; field
= field
->next
) {
818 struct bt_ctf_field_type
*type
;
819 unsigned long flags
= field
->flags
;
821 pr2(" field '%s'\n", field
->name
);
823 type
= get_tracepoint_field_type(cw
, field
);
828 * A string is an array of chars. For this we use the string
829 * type and don't care that it is an array. What we don't
830 * support is an array of strings.
832 if (flags
& FIELD_IS_STRING
)
833 flags
&= ~FIELD_IS_ARRAY
;
835 if (flags
& FIELD_IS_ARRAY
)
836 type
= bt_ctf_field_type_array_create(type
, field
->arraylen
);
838 ret
= event_class_add_field(event_class
, type
, field
);
840 if (flags
& FIELD_IS_ARRAY
)
841 bt_ctf_field_type_put(type
);
844 pr_err("Failed to add field '%s': %d\n",
853 static int add_tracepoint_types(struct ctf_writer
*cw
,
854 struct perf_evsel
*evsel
,
855 struct bt_ctf_event_class
*class)
857 struct format_field
*common_fields
= evsel
->tp_format
->format
.common_fields
;
858 struct format_field
*fields
= evsel
->tp_format
->format
.fields
;
861 ret
= add_tracepoint_fields_types(cw
, common_fields
, class);
863 ret
= add_tracepoint_fields_types(cw
, fields
, class);
868 static int add_bpf_output_types(struct ctf_writer
*cw
,
869 struct bt_ctf_event_class
*class)
871 struct bt_ctf_field_type
*len_type
= cw
->data
.u32
;
872 struct bt_ctf_field_type
*seq_base_type
= cw
->data
.u32_hex
;
873 struct bt_ctf_field_type
*seq_type
;
876 ret
= bt_ctf_event_class_add_field(class, len_type
, "raw_len");
880 seq_type
= bt_ctf_field_type_sequence_create(seq_base_type
, "raw_len");
884 return bt_ctf_event_class_add_field(class, seq_type
, "raw_data");
887 static int add_generic_types(struct ctf_writer
*cw
, struct perf_evsel
*evsel
,
888 struct bt_ctf_event_class
*event_class
)
890 u64 type
= evsel
->attr
.sample_type
;
894 * PERF_SAMPLE_TIME - not needed as we have it in
896 * PERF_SAMPLE_READ - TODO
897 * PERF_SAMPLE_CALLCHAIN - TODO
898 * PERF_SAMPLE_RAW - tracepoint fields and BPF output
899 * are handled separately
900 * PERF_SAMPLE_BRANCH_STACK - TODO
901 * PERF_SAMPLE_REGS_USER - TODO
902 * PERF_SAMPLE_STACK_USER - TODO
905 #define ADD_FIELD(cl, t, n) \
907 pr2(" field '%s'\n", n); \
908 if (bt_ctf_event_class_add_field(cl, t, n)) { \
909 pr_err("Failed to add field '%s';\n", n); \
914 if (type
& PERF_SAMPLE_IP
)
915 ADD_FIELD(event_class
, cw
->data
.u64_hex
, "perf_ip");
917 if (type
& PERF_SAMPLE_TID
) {
918 ADD_FIELD(event_class
, cw
->data
.s32
, "perf_tid");
919 ADD_FIELD(event_class
, cw
->data
.s32
, "perf_pid");
922 if ((type
& PERF_SAMPLE_ID
) ||
923 (type
& PERF_SAMPLE_IDENTIFIER
))
924 ADD_FIELD(event_class
, cw
->data
.u64
, "perf_id");
926 if (type
& PERF_SAMPLE_STREAM_ID
)
927 ADD_FIELD(event_class
, cw
->data
.u64
, "perf_stream_id");
929 if (type
& PERF_SAMPLE_PERIOD
)
930 ADD_FIELD(event_class
, cw
->data
.u64
, "perf_period");
932 if (type
& PERF_SAMPLE_WEIGHT
)
933 ADD_FIELD(event_class
, cw
->data
.u64
, "perf_weight");
935 if (type
& PERF_SAMPLE_DATA_SRC
)
936 ADD_FIELD(event_class
, cw
->data
.u64
, "perf_data_src");
938 if (type
& PERF_SAMPLE_TRANSACTION
)
939 ADD_FIELD(event_class
, cw
->data
.u64
, "perf_transaction");
945 static int add_event(struct ctf_writer
*cw
, struct perf_evsel
*evsel
)
947 struct bt_ctf_event_class
*event_class
;
948 struct evsel_priv
*priv
;
949 const char *name
= perf_evsel__name(evsel
);
952 pr("Adding event '%s' (type %d)\n", name
, evsel
->attr
.type
);
954 event_class
= bt_ctf_event_class_create(name
);
958 ret
= add_generic_types(cw
, evsel
, event_class
);
962 if (evsel
->attr
.type
== PERF_TYPE_TRACEPOINT
) {
963 ret
= add_tracepoint_types(cw
, evsel
, event_class
);
968 if (perf_evsel__is_bpf_output(evsel
)) {
969 ret
= add_bpf_output_types(cw
, event_class
);
974 ret
= bt_ctf_stream_class_add_event_class(cw
->stream_class
, event_class
);
976 pr("Failed to add event class into stream.\n");
980 priv
= malloc(sizeof(*priv
));
984 priv
->event_class
= event_class
;
989 bt_ctf_event_class_put(event_class
);
990 pr_err("Failed to add event '%s'.\n", name
);
994 static int setup_events(struct ctf_writer
*cw
, struct perf_session
*session
)
996 struct perf_evlist
*evlist
= session
->evlist
;
997 struct perf_evsel
*evsel
;
1000 evlist__for_each_entry(evlist
, evsel
) {
1001 ret
= add_event(cw
, evsel
);
1008 static void cleanup_events(struct perf_session
*session
)
1010 struct perf_evlist
*evlist
= session
->evlist
;
1011 struct perf_evsel
*evsel
;
1013 evlist__for_each_entry(evlist
, evsel
) {
1014 struct evsel_priv
*priv
;
1017 bt_ctf_event_class_put(priv
->event_class
);
1018 zfree(&evsel
->priv
);
1021 perf_evlist__delete(evlist
);
1022 session
->evlist
= NULL
;
1025 static int setup_streams(struct ctf_writer
*cw
, struct perf_session
*session
)
1027 struct ctf_stream
**stream
;
1028 struct perf_header
*ph
= &session
->header
;
1032 * Try to get the number of cpus used in the data file,
1033 * if not present fallback to the MAX_CPUS.
1035 ncpus
= ph
->env
.nr_cpus_avail
?: MAX_CPUS
;
1037 stream
= zalloc(sizeof(*stream
) * ncpus
);
1039 pr_err("Failed to allocate streams.\n");
1043 cw
->stream
= stream
;
1044 cw
->stream_cnt
= ncpus
;
1048 static void free_streams(struct ctf_writer
*cw
)
1052 for (cpu
= 0; cpu
< cw
->stream_cnt
; cpu
++)
1053 ctf_stream__delete(cw
->stream
[cpu
]);
1058 static int ctf_writer__setup_env(struct ctf_writer
*cw
,
1059 struct perf_session
*session
)
1061 struct perf_header
*header
= &session
->header
;
1062 struct bt_ctf_writer
*writer
= cw
->writer
;
1064 #define ADD(__n, __v) \
1066 if (bt_ctf_writer_add_environment_field(writer, __n, __v)) \
1070 ADD("host", header
->env
.hostname
);
1071 ADD("sysname", "Linux");
1072 ADD("release", header
->env
.os_release
);
1073 ADD("version", header
->env
.version
);
1074 ADD("machine", header
->env
.arch
);
1075 ADD("domain", "kernel");
1076 ADD("tracer_name", "perf");
1082 static int ctf_writer__setup_clock(struct ctf_writer
*cw
)
1084 struct bt_ctf_clock
*clock
= cw
->clock
;
1086 bt_ctf_clock_set_description(clock
, "perf clock");
1088 #define SET(__n, __v) \
1090 if (bt_ctf_clock_set_##__n(clock, __v)) \
1094 SET(frequency
, 1000000000);
1098 SET(is_absolute
, 0);
1104 static struct bt_ctf_field_type
*create_int_type(int size
, bool sign
, bool hex
)
1106 struct bt_ctf_field_type
*type
;
1108 type
= bt_ctf_field_type_integer_create(size
);
1113 bt_ctf_field_type_integer_set_signed(type
, 1))
1117 bt_ctf_field_type_integer_set_base(type
, BT_CTF_INTEGER_BASE_HEXADECIMAL
))
1120 #if __BYTE_ORDER == __BIG_ENDIAN
1121 bt_ctf_field_type_set_byte_order(type
, BT_CTF_BYTE_ORDER_BIG_ENDIAN
);
1123 bt_ctf_field_type_set_byte_order(type
, BT_CTF_BYTE_ORDER_LITTLE_ENDIAN
);
1126 pr2("Created type: INTEGER %d-bit %ssigned %s\n",
1127 size
, sign
? "un" : "", hex
? "hex" : "");
1131 bt_ctf_field_type_put(type
);
1135 static void ctf_writer__cleanup_data(struct ctf_writer
*cw
)
1139 for (i
= 0; i
< ARRAY_SIZE(cw
->data
.array
); i
++)
1140 bt_ctf_field_type_put(cw
->data
.array
[i
]);
1143 static int ctf_writer__init_data(struct ctf_writer
*cw
)
1145 #define CREATE_INT_TYPE(type, size, sign, hex) \
1147 (type) = create_int_type(size, sign, hex); \
1152 CREATE_INT_TYPE(cw
->data
.s64
, 64, true, false);
1153 CREATE_INT_TYPE(cw
->data
.u64
, 64, false, false);
1154 CREATE_INT_TYPE(cw
->data
.s32
, 32, true, false);
1155 CREATE_INT_TYPE(cw
->data
.u32
, 32, false, false);
1156 CREATE_INT_TYPE(cw
->data
.u32_hex
, 32, false, true);
1157 CREATE_INT_TYPE(cw
->data
.u64_hex
, 64, false, true);
1159 cw
->data
.string
= bt_ctf_field_type_string_create();
1160 if (cw
->data
.string
)
1164 ctf_writer__cleanup_data(cw
);
1165 pr_err("Failed to create data types.\n");
1169 static void ctf_writer__cleanup(struct ctf_writer
*cw
)
1171 ctf_writer__cleanup_data(cw
);
1173 bt_ctf_clock_put(cw
->clock
);
1175 bt_ctf_stream_class_put(cw
->stream_class
);
1176 bt_ctf_writer_put(cw
->writer
);
1178 /* and NULL all the pointers */
1179 memset(cw
, 0, sizeof(*cw
));
1182 static int ctf_writer__init(struct ctf_writer
*cw
, const char *path
)
1184 struct bt_ctf_writer
*writer
;
1185 struct bt_ctf_stream_class
*stream_class
;
1186 struct bt_ctf_clock
*clock
;
1187 struct bt_ctf_field_type
*pkt_ctx_type
;
1191 writer
= bt_ctf_writer_create(path
);
1195 cw
->writer
= writer
;
1198 clock
= bt_ctf_clock_create("perf_clock");
1200 pr("Failed to create CTF clock.\n");
1206 if (ctf_writer__setup_clock(cw
)) {
1207 pr("Failed to setup CTF clock.\n");
1211 /* CTF stream class */
1212 stream_class
= bt_ctf_stream_class_create("perf_stream");
1213 if (!stream_class
) {
1214 pr("Failed to create CTF stream class.\n");
1218 cw
->stream_class
= stream_class
;
1220 /* CTF clock stream setup */
1221 if (bt_ctf_stream_class_set_clock(stream_class
, clock
)) {
1222 pr("Failed to assign CTF clock to stream class.\n");
1226 if (ctf_writer__init_data(cw
))
1229 /* Add cpu_id for packet context */
1230 pkt_ctx_type
= bt_ctf_stream_class_get_packet_context_type(stream_class
);
1234 ret
= bt_ctf_field_type_structure_add_field(pkt_ctx_type
, cw
->data
.u32
, "cpu_id");
1235 bt_ctf_field_type_put(pkt_ctx_type
);
1239 /* CTF clock writer setup */
1240 if (bt_ctf_writer_add_clock(writer
, clock
)) {
1241 pr("Failed to assign CTF clock to writer.\n");
1248 ctf_writer__cleanup(cw
);
1250 pr_err("Failed to setup CTF writer.\n");
1254 static int ctf_writer__flush_streams(struct ctf_writer
*cw
)
1258 for (cpu
= 0; cpu
< cw
->stream_cnt
&& !ret
; cpu
++)
1259 ret
= ctf_stream__flush(cw
->stream
[cpu
]);
1264 static int convert__config(const char *var
, const char *value
, void *cb
)
1266 struct convert
*c
= cb
;
1268 if (!strcmp(var
, "convert.queue-size")) {
1269 c
->queue_size
= perf_config_u64(var
, value
);
1276 int bt_convert__perf2ctf(const char *input
, const char *path
, bool force
)
1278 struct perf_session
*session
;
1279 struct perf_data_file file
= {
1281 .mode
= PERF_DATA_MODE_READ
,
1284 struct convert c
= {
1286 .sample
= process_sample_event
,
1287 .mmap
= perf_event__process_mmap
,
1288 .mmap2
= perf_event__process_mmap2
,
1289 .comm
= perf_event__process_comm
,
1290 .exit
= perf_event__process_exit
,
1291 .fork
= perf_event__process_fork
,
1292 .lost
= perf_event__process_lost
,
1293 .tracing_data
= perf_event__process_tracing_data
,
1294 .build_id
= perf_event__process_build_id
,
1295 .ordered_events
= true,
1296 .ordering_requires_timestamps
= true,
1299 struct ctf_writer
*cw
= &c
.writer
;
1302 perf_config(convert__config
, &c
);
1305 if (ctf_writer__init(cw
, path
))
1308 /* perf.data session */
1309 session
= perf_session__new(&file
, 0, &c
.tool
);
1314 ordered_events__set_alloc_size(&session
->ordered_events
,
1318 /* CTF writer env/clock setup */
1319 if (ctf_writer__setup_env(cw
, session
))
1322 /* CTF events setup */
1323 if (setup_events(cw
, session
))
1326 if (setup_streams(cw
, session
))
1329 err
= perf_session__process_events(session
);
1331 err
= ctf_writer__flush_streams(cw
);
1333 pr_err("Error during conversion.\n");
1336 "[ perf data convert: Converted '%s' into CTF data '%s' ]\n",
1340 "[ perf data convert: Converted and wrote %.3f MB (%" PRIu64
" samples) ]\n",
1341 (double) c
.events_size
/ 1024.0 / 1024.0,
1344 cleanup_events(session
);
1345 perf_session__delete(session
);
1346 ctf_writer__cleanup(cw
);
1351 perf_session__delete(session
);
1353 ctf_writer__cleanup(cw
);
1354 pr_err("Error during conversion setup.\n");