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1// SPDX-License-Identifier: GPL-2.0-only2/*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 "asm/bug.h"23#include "data-convert.h"24#include "session.h"25#include "debug.h"26#include "tool.h"27#include "evlist.h"28#include "evsel.h"29#include "machine.h"30#include "config.h"31#include <linux/ctype.h>32#include <linux/err.h>33#include <linux/time64.h>34#include "util.h"35#include "clockid.h"36#include "util/sample.h"37 38#ifdef HAVE_LIBTRACEEVENT39#include <traceevent/event-parse.h>40#endif41 42#define pr_N(n, fmt, ...) \43 eprintf(n, debug_data_convert, fmt, ##__VA_ARGS__)44 45#define pr(fmt, ...) pr_N(1, pr_fmt(fmt), ##__VA_ARGS__)46#define pr2(fmt, ...) pr_N(2, pr_fmt(fmt), ##__VA_ARGS__)47 48#define pr_time2(t, fmt, ...) pr_time_N(2, debug_data_convert, t, pr_fmt(fmt), ##__VA_ARGS__)49 50struct evsel_priv {51 struct bt_ctf_event_class *event_class;52};53 54#define MAX_CPUS 409655 56struct ctf_stream {57 struct bt_ctf_stream *stream;58 int cpu;59 u32 count;60};61 62struct ctf_writer {63 /* writer primitives */64 struct bt_ctf_writer *writer;65 struct ctf_stream **stream;66 int stream_cnt;67 struct bt_ctf_stream_class *stream_class;68 struct bt_ctf_clock *clock;69 70 /* data types */71 union {72 struct {73 struct bt_ctf_field_type *s64;74 struct bt_ctf_field_type *u64;75 struct bt_ctf_field_type *s32;76 struct bt_ctf_field_type *u32;77 struct bt_ctf_field_type *string;78 struct bt_ctf_field_type *u32_hex;79 struct bt_ctf_field_type *u64_hex;80 };81 struct bt_ctf_field_type *array[6];82 } data;83 struct bt_ctf_event_class *comm_class;84 struct bt_ctf_event_class *exit_class;85 struct bt_ctf_event_class *fork_class;86 struct bt_ctf_event_class *mmap_class;87 struct bt_ctf_event_class *mmap2_class;88};89 90struct convert {91 struct perf_tool tool;92 struct ctf_writer writer;93 94 u64 events_size;95 u64 events_count;96 u64 non_sample_count;97 98 /* Ordered events configured queue size. */99 u64 queue_size;100};101 102static int value_set(struct bt_ctf_field_type *type,103 struct bt_ctf_event *event,104 const char *name, u64 val)105{106 struct bt_ctf_field *field;107 bool sign = bt_ctf_field_type_integer_get_signed(type);108 int ret;109 110 field = bt_ctf_field_create(type);111 if (!field) {112 pr_err("failed to create a field %s\n", name);113 return -1;114 }115 116 if (sign) {117 ret = bt_ctf_field_signed_integer_set_value(field, val);118 if (ret) {119 pr_err("failed to set field value %s\n", name);120 goto err;121 }122 } else {123 ret = bt_ctf_field_unsigned_integer_set_value(field, val);124 if (ret) {125 pr_err("failed to set field value %s\n", name);126 goto err;127 }128 }129 130 ret = bt_ctf_event_set_payload(event, name, field);131 if (ret) {132 pr_err("failed to set payload %s\n", name);133 goto err;134 }135 136 pr2(" SET [%s = %" PRIu64 "]\n", name, val);137 138err:139 bt_ctf_field_put(field);140 return ret;141}142 143#define __FUNC_VALUE_SET(_name, _val_type) \144static __maybe_unused int value_set_##_name(struct ctf_writer *cw, \145 struct bt_ctf_event *event, \146 const char *name, \147 _val_type val) \148{ \149 struct bt_ctf_field_type *type = cw->data._name; \150 return value_set(type, event, name, (u64) val); \151}152 153#define FUNC_VALUE_SET(_name) __FUNC_VALUE_SET(_name, _name)154 155FUNC_VALUE_SET(s32)156FUNC_VALUE_SET(u32)157FUNC_VALUE_SET(s64)158FUNC_VALUE_SET(u64)159__FUNC_VALUE_SET(u64_hex, u64)160 161static int string_set_value(struct bt_ctf_field *field, const char *string);162static __maybe_unused int163value_set_string(struct ctf_writer *cw, struct bt_ctf_event *event,164 const char *name, const char *string)165{166 struct bt_ctf_field_type *type = cw->data.string;167 struct bt_ctf_field *field;168 int ret = 0;169 170 field = bt_ctf_field_create(type);171 if (!field) {172 pr_err("failed to create a field %s\n", name);173 return -1;174 }175 176 ret = string_set_value(field, string);177 if (ret) {178 pr_err("failed to set value %s\n", name);179 goto err_put_field;180 }181 182 ret = bt_ctf_event_set_payload(event, name, field);183 if (ret)184 pr_err("failed to set payload %s\n", name);185 186err_put_field:187 bt_ctf_field_put(field);188 return ret;189}190 191static struct bt_ctf_field_type*192get_tracepoint_field_type(struct ctf_writer *cw, struct tep_format_field *field)193{194 unsigned long flags = field->flags;195 196 if (flags & TEP_FIELD_IS_STRING)197 return cw->data.string;198 199 if (!(flags & TEP_FIELD_IS_SIGNED)) {200 /* unsigned long are mostly pointers */201 if (flags & TEP_FIELD_IS_LONG || flags & TEP_FIELD_IS_POINTER)202 return cw->data.u64_hex;203 }204 205 if (flags & TEP_FIELD_IS_SIGNED) {206 if (field->size == 8)207 return cw->data.s64;208 else209 return cw->data.s32;210 }211 212 if (field->size == 8)213 return cw->data.u64;214 else215 return cw->data.u32;216}217 218static unsigned long long adjust_signedness(unsigned long long value_int, int size)219{220 unsigned long long value_mask;221 222 /*223 * value_mask = (1 << (size * 8 - 1)) - 1.224 * Directly set value_mask for code readers.225 */226 switch (size) {227 case 1:228 value_mask = 0x7fULL;229 break;230 case 2:231 value_mask = 0x7fffULL;232 break;233 case 4:234 value_mask = 0x7fffffffULL;235 break;236 case 8:237 /*238 * For 64 bit value, return it self. There is no need239 * to fill high bit.240 */241 /* Fall through */242 default:243 /* BUG! */244 return value_int;245 }246 247 /* If it is a positive value, don't adjust. */248 if ((value_int & (~0ULL - value_mask)) == 0)249 return value_int;250 251 /* Fill upper part of value_int with 1 to make it a negative long long. */252 return (value_int & value_mask) | ~value_mask;253}254 255static int string_set_value(struct bt_ctf_field *field, const char *string)256{257 char *buffer = NULL;258 size_t len = strlen(string), i, p;259 int err;260 261 for (i = p = 0; i < len; i++, p++) {262 if (isprint(string[i])) {263 if (!buffer)264 continue;265 buffer[p] = string[i];266 } else {267 char numstr[5];268 269 snprintf(numstr, sizeof(numstr), "\\x%02x",270 (unsigned int)(string[i]) & 0xff);271 272 if (!buffer) {273 buffer = zalloc(i + (len - i) * 4 + 2);274 if (!buffer) {275 pr_err("failed to set unprintable string '%s'\n", string);276 return bt_ctf_field_string_set_value(field, "UNPRINTABLE-STRING");277 }278 if (i > 0)279 strncpy(buffer, string, i);280 }281 memcpy(buffer + p, numstr, 4);282 p += 3;283 }284 }285 286 if (!buffer)287 return bt_ctf_field_string_set_value(field, string);288 err = bt_ctf_field_string_set_value(field, buffer);289 free(buffer);290 return err;291}292 293static int add_tracepoint_field_value(struct ctf_writer *cw,294 struct bt_ctf_event_class *event_class,295 struct bt_ctf_event *event,296 struct perf_sample *sample,297 struct tep_format_field *fmtf)298{299 struct bt_ctf_field_type *type;300 struct bt_ctf_field *array_field;301 struct bt_ctf_field *field;302 const char *name = fmtf->name;303 void *data = sample->raw_data;304 unsigned long flags = fmtf->flags;305 unsigned int n_items;306 unsigned int i;307 unsigned int offset;308 unsigned int len;309 int ret;310 311 name = fmtf->alias;312 offset = fmtf->offset;313 len = fmtf->size;314 if (flags & TEP_FIELD_IS_STRING)315 flags &= ~TEP_FIELD_IS_ARRAY;316 317 if (flags & TEP_FIELD_IS_DYNAMIC) {318 unsigned long long tmp_val;319 320 tmp_val = tep_read_number(fmtf->event->tep,321 data + offset, len);322 offset = tmp_val;323 len = offset >> 16;324 offset &= 0xffff;325 if (tep_field_is_relative(flags))326 offset += fmtf->offset + fmtf->size;327 }328 329 if (flags & TEP_FIELD_IS_ARRAY) {330 331 type = bt_ctf_event_class_get_field_by_name(332 event_class, name);333 array_field = bt_ctf_field_create(type);334 bt_ctf_field_type_put(type);335 if (!array_field) {336 pr_err("Failed to create array type %s\n", name);337 return -1;338 }339 340 len = fmtf->size / fmtf->arraylen;341 n_items = fmtf->arraylen;342 } else {343 n_items = 1;344 array_field = NULL;345 }346 347 type = get_tracepoint_field_type(cw, fmtf);348 349 for (i = 0; i < n_items; i++) {350 if (flags & TEP_FIELD_IS_ARRAY)351 field = bt_ctf_field_array_get_field(array_field, i);352 else353 field = bt_ctf_field_create(type);354 355 if (!field) {356 pr_err("failed to create a field %s\n", name);357 return -1;358 }359 360 if (flags & TEP_FIELD_IS_STRING)361 ret = string_set_value(field, data + offset + i * len);362 else {363 unsigned long long value_int;364 365 value_int = tep_read_number(366 fmtf->event->tep,367 data + offset + i * len, len);368 369 if (!(flags & TEP_FIELD_IS_SIGNED))370 ret = bt_ctf_field_unsigned_integer_set_value(371 field, value_int);372 else373 ret = bt_ctf_field_signed_integer_set_value(374 field, adjust_signedness(value_int, len));375 }376 377 if (ret) {378 pr_err("failed to set file value %s\n", name);379 goto err_put_field;380 }381 if (!(flags & TEP_FIELD_IS_ARRAY)) {382 ret = bt_ctf_event_set_payload(event, name, field);383 if (ret) {384 pr_err("failed to set payload %s\n", name);385 goto err_put_field;386 }387 }388 bt_ctf_field_put(field);389 }390 if (flags & TEP_FIELD_IS_ARRAY) {391 ret = bt_ctf_event_set_payload(event, name, array_field);392 if (ret) {393 pr_err("Failed add payload array %s\n", name);394 return -1;395 }396 bt_ctf_field_put(array_field);397 }398 return 0;399 400err_put_field:401 bt_ctf_field_put(field);402 return -1;403}404 405static int add_tracepoint_fields_values(struct ctf_writer *cw,406 struct bt_ctf_event_class *event_class,407 struct bt_ctf_event *event,408 struct tep_format_field *fields,409 struct perf_sample *sample)410{411 struct tep_format_field *field;412 int ret;413 414 for (field = fields; field; field = field->next) {415 ret = add_tracepoint_field_value(cw, event_class, event, sample,416 field);417 if (ret)418 return -1;419 }420 return 0;421}422 423static int add_tracepoint_values(struct ctf_writer *cw,424 struct bt_ctf_event_class *event_class,425 struct bt_ctf_event *event,426 struct evsel *evsel,427 struct perf_sample *sample)428{429 struct tep_format_field *common_fields = evsel->tp_format->format.common_fields;430 struct tep_format_field *fields = evsel->tp_format->format.fields;431 int ret;432 433 ret = add_tracepoint_fields_values(cw, event_class, event,434 common_fields, sample);435 if (!ret)436 ret = add_tracepoint_fields_values(cw, event_class, event,437 fields, sample);438 439 return ret;440}441 442static int443add_bpf_output_values(struct bt_ctf_event_class *event_class,444 struct bt_ctf_event *event,445 struct perf_sample *sample)446{447 struct bt_ctf_field_type *len_type, *seq_type;448 struct bt_ctf_field *len_field, *seq_field;449 unsigned int raw_size = sample->raw_size;450 unsigned int nr_elements = raw_size / sizeof(u32);451 unsigned int i;452 int ret;453 454 if (nr_elements * sizeof(u32) != raw_size)455 pr_warning("Incorrect raw_size (%u) in bpf output event, skip %zu bytes\n",456 raw_size, nr_elements * sizeof(u32) - raw_size);457 458 len_type = bt_ctf_event_class_get_field_by_name(event_class, "raw_len");459 len_field = bt_ctf_field_create(len_type);460 if (!len_field) {461 pr_err("failed to create 'raw_len' for bpf output event\n");462 ret = -1;463 goto put_len_type;464 }465 466 ret = bt_ctf_field_unsigned_integer_set_value(len_field, nr_elements);467 if (ret) {468 pr_err("failed to set field value for raw_len\n");469 goto put_len_field;470 }471 ret = bt_ctf_event_set_payload(event, "raw_len", len_field);472 if (ret) {473 pr_err("failed to set payload to raw_len\n");474 goto put_len_field;475 }476 477 seq_type = bt_ctf_event_class_get_field_by_name(event_class, "raw_data");478 seq_field = bt_ctf_field_create(seq_type);479 if (!seq_field) {480 pr_err("failed to create 'raw_data' for bpf output event\n");481 ret = -1;482 goto put_seq_type;483 }484 485 ret = bt_ctf_field_sequence_set_length(seq_field, len_field);486 if (ret) {487 pr_err("failed to set length of 'raw_data'\n");488 goto put_seq_field;489 }490 491 for (i = 0; i < nr_elements; i++) {492 struct bt_ctf_field *elem_field =493 bt_ctf_field_sequence_get_field(seq_field, i);494 495 ret = bt_ctf_field_unsigned_integer_set_value(elem_field,496 ((u32 *)(sample->raw_data))[i]);497 498 bt_ctf_field_put(elem_field);499 if (ret) {500 pr_err("failed to set raw_data[%d]\n", i);501 goto put_seq_field;502 }503 }504 505 ret = bt_ctf_event_set_payload(event, "raw_data", seq_field);506 if (ret)507 pr_err("failed to set payload for raw_data\n");508 509put_seq_field:510 bt_ctf_field_put(seq_field);511put_seq_type:512 bt_ctf_field_type_put(seq_type);513put_len_field:514 bt_ctf_field_put(len_field);515put_len_type:516 bt_ctf_field_type_put(len_type);517 return ret;518}519 520static int521add_callchain_output_values(struct bt_ctf_event_class *event_class,522 struct bt_ctf_event *event,523 struct ip_callchain *callchain)524{525 struct bt_ctf_field_type *len_type, *seq_type;526 struct bt_ctf_field *len_field, *seq_field;527 unsigned int nr_elements = callchain->nr;528 unsigned int i;529 int ret;530 531 len_type = bt_ctf_event_class_get_field_by_name(532 event_class, "perf_callchain_size");533 len_field = bt_ctf_field_create(len_type);534 if (!len_field) {535 pr_err("failed to create 'perf_callchain_size' for callchain output event\n");536 ret = -1;537 goto put_len_type;538 }539 540 ret = bt_ctf_field_unsigned_integer_set_value(len_field, nr_elements);541 if (ret) {542 pr_err("failed to set field value for perf_callchain_size\n");543 goto put_len_field;544 }545 ret = bt_ctf_event_set_payload(event, "perf_callchain_size", len_field);546 if (ret) {547 pr_err("failed to set payload to perf_callchain_size\n");548 goto put_len_field;549 }550 551 seq_type = bt_ctf_event_class_get_field_by_name(552 event_class, "perf_callchain");553 seq_field = bt_ctf_field_create(seq_type);554 if (!seq_field) {555 pr_err("failed to create 'perf_callchain' for callchain output event\n");556 ret = -1;557 goto put_seq_type;558 }559 560 ret = bt_ctf_field_sequence_set_length(seq_field, len_field);561 if (ret) {562 pr_err("failed to set length of 'perf_callchain'\n");563 goto put_seq_field;564 }565 566 for (i = 0; i < nr_elements; i++) {567 struct bt_ctf_field *elem_field =568 bt_ctf_field_sequence_get_field(seq_field, i);569 570 ret = bt_ctf_field_unsigned_integer_set_value(elem_field,571 ((u64 *)(callchain->ips))[i]);572 573 bt_ctf_field_put(elem_field);574 if (ret) {575 pr_err("failed to set callchain[%d]\n", i);576 goto put_seq_field;577 }578 }579 580 ret = bt_ctf_event_set_payload(event, "perf_callchain", seq_field);581 if (ret)582 pr_err("failed to set payload for raw_data\n");583 584put_seq_field:585 bt_ctf_field_put(seq_field);586put_seq_type:587 bt_ctf_field_type_put(seq_type);588put_len_field:589 bt_ctf_field_put(len_field);590put_len_type:591 bt_ctf_field_type_put(len_type);592 return ret;593}594 595static int add_generic_values(struct ctf_writer *cw,596 struct bt_ctf_event *event,597 struct evsel *evsel,598 struct perf_sample *sample)599{600 u64 type = evsel->core.attr.sample_type;601 int ret;602 603 /*604 * missing:605 * PERF_SAMPLE_TIME - not needed as we have it in606 * ctf event header607 * PERF_SAMPLE_READ - TODO608 * PERF_SAMPLE_RAW - tracepoint fields are handled separately609 * PERF_SAMPLE_BRANCH_STACK - TODO610 * PERF_SAMPLE_REGS_USER - TODO611 * PERF_SAMPLE_STACK_USER - TODO612 */613 614 if (type & PERF_SAMPLE_IP) {615 ret = value_set_u64_hex(cw, event, "perf_ip", sample->ip);616 if (ret)617 return -1;618 }619 620 if (type & PERF_SAMPLE_TID) {621 ret = value_set_s32(cw, event, "perf_tid", sample->tid);622 if (ret)623 return -1;624 625 ret = value_set_s32(cw, event, "perf_pid", sample->pid);626 if (ret)627 return -1;628 }629 630 if ((type & PERF_SAMPLE_ID) ||631 (type & PERF_SAMPLE_IDENTIFIER)) {632 ret = value_set_u64(cw, event, "perf_id", sample->id);633 if (ret)634 return -1;635 }636 637 if (type & PERF_SAMPLE_STREAM_ID) {638 ret = value_set_u64(cw, event, "perf_stream_id", sample->stream_id);639 if (ret)640 return -1;641 }642 643 if (type & PERF_SAMPLE_PERIOD) {644 ret = value_set_u64(cw, event, "perf_period", sample->period);645 if (ret)646 return -1;647 }648 649 if (type & PERF_SAMPLE_WEIGHT) {650 ret = value_set_u64(cw, event, "perf_weight", sample->weight);651 if (ret)652 return -1;653 }654 655 if (type & PERF_SAMPLE_DATA_SRC) {656 ret = value_set_u64(cw, event, "perf_data_src",657 sample->data_src);658 if (ret)659 return -1;660 }661 662 if (type & PERF_SAMPLE_TRANSACTION) {663 ret = value_set_u64(cw, event, "perf_transaction",664 sample->transaction);665 if (ret)666 return -1;667 }668 669 return 0;670}671 672static int ctf_stream__flush(struct ctf_stream *cs)673{674 int err = 0;675 676 if (cs) {677 err = bt_ctf_stream_flush(cs->stream);678 if (err)679 pr_err("CTF stream %d flush failed\n", cs->cpu);680 681 pr("Flush stream for cpu %d (%u samples)\n",682 cs->cpu, cs->count);683 684 cs->count = 0;685 }686 687 return err;688}689 690static struct ctf_stream *ctf_stream__create(struct ctf_writer *cw, int cpu)691{692 struct ctf_stream *cs;693 struct bt_ctf_field *pkt_ctx = NULL;694 struct bt_ctf_field *cpu_field = NULL;695 struct bt_ctf_stream *stream = NULL;696 int ret;697 698 cs = zalloc(sizeof(*cs));699 if (!cs) {700 pr_err("Failed to allocate ctf stream\n");701 return NULL;702 }703 704 stream = bt_ctf_writer_create_stream(cw->writer, cw->stream_class);705 if (!stream) {706 pr_err("Failed to create CTF stream\n");707 goto out;708 }709 710 pkt_ctx = bt_ctf_stream_get_packet_context(stream);711 if (!pkt_ctx) {712 pr_err("Failed to obtain packet context\n");713 goto out;714 }715 716 cpu_field = bt_ctf_field_structure_get_field(pkt_ctx, "cpu_id");717 bt_ctf_field_put(pkt_ctx);718 if (!cpu_field) {719 pr_err("Failed to obtain cpu field\n");720 goto out;721 }722 723 ret = bt_ctf_field_unsigned_integer_set_value(cpu_field, (u32) cpu);724 if (ret) {725 pr_err("Failed to update CPU number\n");726 goto out;727 }728 729 bt_ctf_field_put(cpu_field);730 731 cs->cpu = cpu;732 cs->stream = stream;733 return cs;734 735out:736 if (cpu_field)737 bt_ctf_field_put(cpu_field);738 if (stream)739 bt_ctf_stream_put(stream);740 741 free(cs);742 return NULL;743}744 745static void ctf_stream__delete(struct ctf_stream *cs)746{747 if (cs) {748 bt_ctf_stream_put(cs->stream);749 free(cs);750 }751}752 753static struct ctf_stream *ctf_stream(struct ctf_writer *cw, int cpu)754{755 struct ctf_stream *cs = cw->stream[cpu];756 757 if (!cs) {758 cs = ctf_stream__create(cw, cpu);759 cw->stream[cpu] = cs;760 }761 762 return cs;763}764 765static int get_sample_cpu(struct ctf_writer *cw, struct perf_sample *sample,766 struct evsel *evsel)767{768 int cpu = 0;769 770 if (evsel->core.attr.sample_type & PERF_SAMPLE_CPU)771 cpu = sample->cpu;772 773 if (cpu > cw->stream_cnt) {774 pr_err("Event was recorded for CPU %d, limit is at %d.\n",775 cpu, cw->stream_cnt);776 cpu = 0;777 }778 779 return cpu;780}781 782#define STREAM_FLUSH_COUNT 100000783 784/*785 * Currently we have no other way to determine the786 * time for the stream flush other than keep track787 * of the number of events and check it against788 * threshold.789 */790static bool is_flush_needed(struct ctf_stream *cs)791{792 return cs->count >= STREAM_FLUSH_COUNT;793}794 795static int process_sample_event(const struct perf_tool *tool,796 union perf_event *_event,797 struct perf_sample *sample,798 struct evsel *evsel,799 struct machine *machine __maybe_unused)800{801 struct convert *c = container_of(tool, struct convert, tool);802 struct evsel_priv *priv = evsel->priv;803 struct ctf_writer *cw = &c->writer;804 struct ctf_stream *cs;805 struct bt_ctf_event_class *event_class;806 struct bt_ctf_event *event;807 int ret;808 unsigned long type = evsel->core.attr.sample_type;809 810 if (WARN_ONCE(!priv, "Failed to setup all events.\n"))811 return 0;812 813 event_class = priv->event_class;814 815 /* update stats */816 c->events_count++;817 c->events_size += _event->header.size;818 819 pr_time2(sample->time, "sample %" PRIu64 "\n", c->events_count);820 821 event = bt_ctf_event_create(event_class);822 if (!event) {823 pr_err("Failed to create an CTF event\n");824 return -1;825 }826 827 bt_ctf_clock_set_time(cw->clock, sample->time);828 829 ret = add_generic_values(cw, event, evsel, sample);830 if (ret)831 return -1;832 833 if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {834 ret = add_tracepoint_values(cw, event_class, event,835 evsel, sample);836 if (ret)837 return -1;838 }839 840 if (type & PERF_SAMPLE_CALLCHAIN) {841 ret = add_callchain_output_values(event_class,842 event, sample->callchain);843 if (ret)844 return -1;845 }846 847 if (evsel__is_bpf_output(evsel)) {848 ret = add_bpf_output_values(event_class, event, sample);849 if (ret)850 return -1;851 }852 853 cs = ctf_stream(cw, get_sample_cpu(cw, sample, evsel));854 if (cs) {855 if (is_flush_needed(cs))856 ctf_stream__flush(cs);857 858 cs->count++;859 bt_ctf_stream_append_event(cs->stream, event);860 }861 862 bt_ctf_event_put(event);863 return cs ? 0 : -1;864}865 866#define __NON_SAMPLE_SET_FIELD(_name, _type, _field) \867do { \868 ret = value_set_##_type(cw, event, #_field, _event->_name._field);\869 if (ret) \870 return -1; \871} while(0)872 873#define __FUNC_PROCESS_NON_SAMPLE(_name, body) \874static int process_##_name##_event(const struct perf_tool *tool, \875 union perf_event *_event, \876 struct perf_sample *sample, \877 struct machine *machine) \878{ \879 struct convert *c = container_of(tool, struct convert, tool);\880 struct ctf_writer *cw = &c->writer; \881 struct bt_ctf_event_class *event_class = cw->_name##_class;\882 struct bt_ctf_event *event; \883 struct ctf_stream *cs; \884 int ret; \885 \886 c->non_sample_count++; \887 c->events_size += _event->header.size; \888 event = bt_ctf_event_create(event_class); \889 if (!event) { \890 pr_err("Failed to create an CTF event\n"); \891 return -1; \892 } \893 \894 bt_ctf_clock_set_time(cw->clock, sample->time); \895 body \896 cs = ctf_stream(cw, 0); \897 if (cs) { \898 if (is_flush_needed(cs)) \899 ctf_stream__flush(cs); \900 \901 cs->count++; \902 bt_ctf_stream_append_event(cs->stream, event); \903 } \904 bt_ctf_event_put(event); \905 \906 return perf_event__process_##_name(tool, _event, sample, machine);\907}908 909__FUNC_PROCESS_NON_SAMPLE(comm,910 __NON_SAMPLE_SET_FIELD(comm, u32, pid);911 __NON_SAMPLE_SET_FIELD(comm, u32, tid);912 __NON_SAMPLE_SET_FIELD(comm, string, comm);913)914__FUNC_PROCESS_NON_SAMPLE(fork,915 __NON_SAMPLE_SET_FIELD(fork, u32, pid);916 __NON_SAMPLE_SET_FIELD(fork, u32, ppid);917 __NON_SAMPLE_SET_FIELD(fork, u32, tid);918 __NON_SAMPLE_SET_FIELD(fork, u32, ptid);919 __NON_SAMPLE_SET_FIELD(fork, u64, time);920)921 922__FUNC_PROCESS_NON_SAMPLE(exit,923 __NON_SAMPLE_SET_FIELD(fork, u32, pid);924 __NON_SAMPLE_SET_FIELD(fork, u32, ppid);925 __NON_SAMPLE_SET_FIELD(fork, u32, tid);926 __NON_SAMPLE_SET_FIELD(fork, u32, ptid);927 __NON_SAMPLE_SET_FIELD(fork, u64, time);928)929__FUNC_PROCESS_NON_SAMPLE(mmap,930 __NON_SAMPLE_SET_FIELD(mmap, u32, pid);931 __NON_SAMPLE_SET_FIELD(mmap, u32, tid);932 __NON_SAMPLE_SET_FIELD(mmap, u64_hex, start);933 __NON_SAMPLE_SET_FIELD(mmap, string, filename);934)935__FUNC_PROCESS_NON_SAMPLE(mmap2,936 __NON_SAMPLE_SET_FIELD(mmap2, u32, pid);937 __NON_SAMPLE_SET_FIELD(mmap2, u32, tid);938 __NON_SAMPLE_SET_FIELD(mmap2, u64_hex, start);939 __NON_SAMPLE_SET_FIELD(mmap2, string, filename);940)941#undef __NON_SAMPLE_SET_FIELD942#undef __FUNC_PROCESS_NON_SAMPLE943 944/* If dup < 0, add a prefix. Else, add _dupl_X suffix. */945static char *change_name(char *name, char *orig_name, int dup)946{947 char *new_name = NULL;948 size_t len;949 950 if (!name)951 name = orig_name;952 953 if (dup >= 10)954 goto out;955 /*956 * Add '_' prefix to potential keywork. According to957 * Mathieu Desnoyers (https://lore.kernel.org/lkml/1074266107.40857.1422045946295.JavaMail.zimbra@efficios.com),958 * further CTF spec updating may require us to use '$'.959 */960 if (dup < 0)961 len = strlen(name) + sizeof("_");962 else963 len = strlen(orig_name) + sizeof("_dupl_X");964 965 new_name = malloc(len);966 if (!new_name)967 goto out;968 969 if (dup < 0)970 snprintf(new_name, len, "_%s", name);971 else972 snprintf(new_name, len, "%s_dupl_%d", orig_name, dup);973 974out:975 if (name != orig_name)976 free(name);977 return new_name;978}979 980static int event_class_add_field(struct bt_ctf_event_class *event_class,981 struct bt_ctf_field_type *type,982 struct tep_format_field *field)983{984 struct bt_ctf_field_type *t = NULL;985 char *name;986 int dup = 1;987 int ret;988 989 /* alias was already assigned */990 if (field->alias != field->name)991 return bt_ctf_event_class_add_field(event_class, type,992 (char *)field->alias);993 994 name = field->name;995 996 /* If 'name' is a keywork, add prefix. */997 if (bt_ctf_validate_identifier(name))998 name = change_name(name, field->name, -1);999 1000 if (!name) {1001 pr_err("Failed to fix invalid identifier.");1002 return -1;1003 }1004 while ((t = bt_ctf_event_class_get_field_by_name(event_class, name))) {1005 bt_ctf_field_type_put(t);1006 name = change_name(name, field->name, dup++);1007 if (!name) {1008 pr_err("Failed to create dup name for '%s'\n", field->name);1009 return -1;1010 }1011 }1012 1013 ret = bt_ctf_event_class_add_field(event_class, type, name);1014 if (!ret)1015 field->alias = name;1016 1017 return ret;1018}1019 1020static int add_tracepoint_fields_types(struct ctf_writer *cw,1021 struct tep_format_field *fields,1022 struct bt_ctf_event_class *event_class)1023{1024 struct tep_format_field *field;1025 int ret;1026 1027 for (field = fields; field; field = field->next) {1028 struct bt_ctf_field_type *type;1029 unsigned long flags = field->flags;1030 1031 pr2(" field '%s'\n", field->name);1032 1033 type = get_tracepoint_field_type(cw, field);1034 if (!type)1035 return -1;1036 1037 /*1038 * A string is an array of chars. For this we use the string1039 * type and don't care that it is an array. What we don't1040 * support is an array of strings.1041 */1042 if (flags & TEP_FIELD_IS_STRING)1043 flags &= ~TEP_FIELD_IS_ARRAY;1044 1045 if (flags & TEP_FIELD_IS_ARRAY)1046 type = bt_ctf_field_type_array_create(type, field->arraylen);1047 1048 ret = event_class_add_field(event_class, type, field);1049 1050 if (flags & TEP_FIELD_IS_ARRAY)1051 bt_ctf_field_type_put(type);1052 1053 if (ret) {1054 pr_err("Failed to add field '%s': %d\n",1055 field->name, ret);1056 return -1;1057 }1058 }1059 1060 return 0;1061}1062 1063static int add_tracepoint_types(struct ctf_writer *cw,1064 struct evsel *evsel,1065 struct bt_ctf_event_class *class)1066{1067 struct tep_format_field *common_fields = evsel->tp_format->format.common_fields;1068 struct tep_format_field *fields = evsel->tp_format->format.fields;1069 int ret;1070 1071 ret = add_tracepoint_fields_types(cw, common_fields, class);1072 if (!ret)1073 ret = add_tracepoint_fields_types(cw, fields, class);1074 1075 return ret;1076}1077 1078static int add_bpf_output_types(struct ctf_writer *cw,1079 struct bt_ctf_event_class *class)1080{1081 struct bt_ctf_field_type *len_type = cw->data.u32;1082 struct bt_ctf_field_type *seq_base_type = cw->data.u32_hex;1083 struct bt_ctf_field_type *seq_type;1084 int ret;1085 1086 ret = bt_ctf_event_class_add_field(class, len_type, "raw_len");1087 if (ret)1088 return ret;1089 1090 seq_type = bt_ctf_field_type_sequence_create(seq_base_type, "raw_len");1091 if (!seq_type)1092 return -1;1093 1094 return bt_ctf_event_class_add_field(class, seq_type, "raw_data");1095}1096 1097static int add_generic_types(struct ctf_writer *cw, struct evsel *evsel,1098 struct bt_ctf_event_class *event_class)1099{1100 u64 type = evsel->core.attr.sample_type;1101 1102 /*1103 * missing:1104 * PERF_SAMPLE_TIME - not needed as we have it in1105 * ctf event header1106 * PERF_SAMPLE_READ - TODO1107 * PERF_SAMPLE_CALLCHAIN - TODO1108 * PERF_SAMPLE_RAW - tracepoint fields and BPF output1109 * are handled separately1110 * PERF_SAMPLE_BRANCH_STACK - TODO1111 * PERF_SAMPLE_REGS_USER - TODO1112 * PERF_SAMPLE_STACK_USER - TODO1113 */1114 1115#define ADD_FIELD(cl, t, n) \1116 do { \1117 pr2(" field '%s'\n", n); \1118 if (bt_ctf_event_class_add_field(cl, t, n)) { \1119 pr_err("Failed to add field '%s';\n", n); \1120 return -1; \1121 } \1122 } while (0)1123 1124 if (type & PERF_SAMPLE_IP)1125 ADD_FIELD(event_class, cw->data.u64_hex, "perf_ip");1126 1127 if (type & PERF_SAMPLE_TID) {1128 ADD_FIELD(event_class, cw->data.s32, "perf_tid");1129 ADD_FIELD(event_class, cw->data.s32, "perf_pid");1130 }1131 1132 if ((type & PERF_SAMPLE_ID) ||1133 (type & PERF_SAMPLE_IDENTIFIER))1134 ADD_FIELD(event_class, cw->data.u64, "perf_id");1135 1136 if (type & PERF_SAMPLE_STREAM_ID)1137 ADD_FIELD(event_class, cw->data.u64, "perf_stream_id");1138 1139 if (type & PERF_SAMPLE_PERIOD)1140 ADD_FIELD(event_class, cw->data.u64, "perf_period");1141 1142 if (type & PERF_SAMPLE_WEIGHT)1143 ADD_FIELD(event_class, cw->data.u64, "perf_weight");1144 1145 if (type & PERF_SAMPLE_DATA_SRC)1146 ADD_FIELD(event_class, cw->data.u64, "perf_data_src");1147 1148 if (type & PERF_SAMPLE_TRANSACTION)1149 ADD_FIELD(event_class, cw->data.u64, "perf_transaction");1150 1151 if (type & PERF_SAMPLE_CALLCHAIN) {1152 ADD_FIELD(event_class, cw->data.u32, "perf_callchain_size");1153 ADD_FIELD(event_class,1154 bt_ctf_field_type_sequence_create(1155 cw->data.u64_hex, "perf_callchain_size"),1156 "perf_callchain");1157 }1158 1159#undef ADD_FIELD1160 return 0;1161}1162 1163static int add_event(struct ctf_writer *cw, struct evsel *evsel)1164{1165 struct bt_ctf_event_class *event_class;1166 struct evsel_priv *priv;1167 const char *name = evsel__name(evsel);1168 int ret;1169 1170 pr("Adding event '%s' (type %d)\n", name, evsel->core.attr.type);1171 1172 event_class = bt_ctf_event_class_create(name);1173 if (!event_class)1174 return -1;1175 1176 ret = add_generic_types(cw, evsel, event_class);1177 if (ret)1178 goto err;1179 1180 if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {1181 ret = add_tracepoint_types(cw, evsel, event_class);1182 if (ret)1183 goto err;1184 }1185 1186 if (evsel__is_bpf_output(evsel)) {1187 ret = add_bpf_output_types(cw, event_class);1188 if (ret)1189 goto err;1190 }1191 1192 ret = bt_ctf_stream_class_add_event_class(cw->stream_class, event_class);1193 if (ret) {1194 pr("Failed to add event class into stream.\n");1195 goto err;1196 }1197 1198 priv = malloc(sizeof(*priv));1199 if (!priv)1200 goto err;1201 1202 priv->event_class = event_class;1203 evsel->priv = priv;1204 return 0;1205 1206err:1207 bt_ctf_event_class_put(event_class);1208 pr_err("Failed to add event '%s'.\n", name);1209 return -1;1210}1211 1212static int setup_events(struct ctf_writer *cw, struct perf_session *session)1213{1214 struct evlist *evlist = session->evlist;1215 struct evsel *evsel;1216 int ret;1217 1218 evlist__for_each_entry(evlist, evsel) {1219 ret = add_event(cw, evsel);1220 if (ret)1221 return ret;1222 }1223 return 0;1224}1225 1226#define __NON_SAMPLE_ADD_FIELD(t, n) \1227 do { \1228 pr2(" field '%s'\n", #n); \1229 if (bt_ctf_event_class_add_field(event_class, cw->data.t, #n)) {\1230 pr_err("Failed to add field '%s';\n", #n);\1231 return -1; \1232 } \1233 } while(0)1234 1235#define __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(_name, body) \1236static int add_##_name##_event(struct ctf_writer *cw) \1237{ \1238 struct bt_ctf_event_class *event_class; \1239 int ret; \1240 \1241 pr("Adding "#_name" event\n"); \1242 event_class = bt_ctf_event_class_create("perf_" #_name);\1243 if (!event_class) \1244 return -1; \1245 body \1246 \1247 ret = bt_ctf_stream_class_add_event_class(cw->stream_class, event_class);\1248 if (ret) { \1249 pr("Failed to add event class '"#_name"' into stream.\n");\1250 return ret; \1251 } \1252 \1253 cw->_name##_class = event_class; \1254 bt_ctf_event_class_put(event_class); \1255 return 0; \1256}1257 1258__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(comm,1259 __NON_SAMPLE_ADD_FIELD(u32, pid);1260 __NON_SAMPLE_ADD_FIELD(u32, tid);1261 __NON_SAMPLE_ADD_FIELD(string, comm);1262)1263 1264__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(fork,1265 __NON_SAMPLE_ADD_FIELD(u32, pid);1266 __NON_SAMPLE_ADD_FIELD(u32, ppid);1267 __NON_SAMPLE_ADD_FIELD(u32, tid);1268 __NON_SAMPLE_ADD_FIELD(u32, ptid);1269 __NON_SAMPLE_ADD_FIELD(u64, time);1270)1271 1272__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(exit,1273 __NON_SAMPLE_ADD_FIELD(u32, pid);1274 __NON_SAMPLE_ADD_FIELD(u32, ppid);1275 __NON_SAMPLE_ADD_FIELD(u32, tid);1276 __NON_SAMPLE_ADD_FIELD(u32, ptid);1277 __NON_SAMPLE_ADD_FIELD(u64, time);1278)1279 1280__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap,1281 __NON_SAMPLE_ADD_FIELD(u32, pid);1282 __NON_SAMPLE_ADD_FIELD(u32, tid);1283 __NON_SAMPLE_ADD_FIELD(u64_hex, start);1284 __NON_SAMPLE_ADD_FIELD(string, filename);1285)1286 1287__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap2,1288 __NON_SAMPLE_ADD_FIELD(u32, pid);1289 __NON_SAMPLE_ADD_FIELD(u32, tid);1290 __NON_SAMPLE_ADD_FIELD(u64_hex, start);1291 __NON_SAMPLE_ADD_FIELD(string, filename);1292)1293#undef __NON_SAMPLE_ADD_FIELD1294#undef __FUNC_ADD_NON_SAMPLE_EVENT_CLASS1295 1296static int setup_non_sample_events(struct ctf_writer *cw,1297 struct perf_session *session __maybe_unused)1298{1299 int ret;1300 1301 ret = add_comm_event(cw);1302 if (ret)1303 return ret;1304 ret = add_exit_event(cw);1305 if (ret)1306 return ret;1307 ret = add_fork_event(cw);1308 if (ret)1309 return ret;1310 ret = add_mmap_event(cw);1311 if (ret)1312 return ret;1313 ret = add_mmap2_event(cw);1314 if (ret)1315 return ret;1316 return 0;1317}1318 1319static void cleanup_events(struct perf_session *session)1320{1321 struct evlist *evlist = session->evlist;1322 struct evsel *evsel;1323 1324 evlist__for_each_entry(evlist, evsel) {1325 struct evsel_priv *priv;1326 1327 priv = evsel->priv;1328 bt_ctf_event_class_put(priv->event_class);1329 zfree(&evsel->priv);1330 }1331 1332 evlist__delete(evlist);1333 session->evlist = NULL;1334}1335 1336static int setup_streams(struct ctf_writer *cw, struct perf_session *session)1337{1338 struct ctf_stream **stream;1339 struct perf_header *ph = &session->header;1340 int ncpus;1341 1342 /*1343 * Try to get the number of cpus used in the data file,1344 * if not present fallback to the MAX_CPUS.1345 */1346 ncpus = ph->env.nr_cpus_avail ?: MAX_CPUS;1347 1348 stream = zalloc(sizeof(*stream) * ncpus);1349 if (!stream) {1350 pr_err("Failed to allocate streams.\n");1351 return -ENOMEM;1352 }1353 1354 cw->stream = stream;1355 cw->stream_cnt = ncpus;1356 return 0;1357}1358 1359static void free_streams(struct ctf_writer *cw)1360{1361 int cpu;1362 1363 for (cpu = 0; cpu < cw->stream_cnt; cpu++)1364 ctf_stream__delete(cw->stream[cpu]);1365 1366 zfree(&cw->stream);1367}1368 1369static int ctf_writer__setup_env(struct ctf_writer *cw,1370 struct perf_session *session)1371{1372 struct perf_header *header = &session->header;1373 struct bt_ctf_writer *writer = cw->writer;1374 1375#define ADD(__n, __v) \1376do { \1377 if (bt_ctf_writer_add_environment_field(writer, __n, __v)) \1378 return -1; \1379} while (0)1380 1381 ADD("host", header->env.hostname);1382 ADD("sysname", "Linux");1383 ADD("release", header->env.os_release);1384 ADD("version", header->env.version);1385 ADD("machine", header->env.arch);1386 ADD("domain", "kernel");1387 ADD("tracer_name", "perf");1388 1389#undef ADD1390 return 0;1391}1392 1393static int ctf_writer__setup_clock(struct ctf_writer *cw,1394 struct perf_session *session,1395 bool tod)1396{1397 struct bt_ctf_clock *clock = cw->clock;1398 const char *desc = "perf clock";1399 int64_t offset = 0;1400 1401 if (tod) {1402 struct perf_env *env = &session->header.env;1403 1404 if (!env->clock.enabled) {1405 pr_err("Can't provide --tod time, missing clock data. "1406 "Please record with -k/--clockid option.\n");1407 return -1;1408 }1409 1410 desc = clockid_name(env->clock.clockid);1411 offset = env->clock.tod_ns - env->clock.clockid_ns;1412 }1413 1414#define SET(__n, __v) \1415do { \1416 if (bt_ctf_clock_set_##__n(clock, __v)) \1417 return -1; \1418} while (0)1419 1420 SET(frequency, 1000000000);1421 SET(offset, offset);1422 SET(description, desc);1423 SET(precision, 10);1424 SET(is_absolute, 0);1425 1426#undef SET1427 return 0;1428}1429 1430static struct bt_ctf_field_type *create_int_type(int size, bool sign, bool hex)1431{1432 struct bt_ctf_field_type *type;1433 1434 type = bt_ctf_field_type_integer_create(size);1435 if (!type)1436 return NULL;1437 1438 if (sign &&1439 bt_ctf_field_type_integer_set_signed(type, 1))1440 goto err;1441 1442 if (hex &&1443 bt_ctf_field_type_integer_set_base(type, BT_CTF_INTEGER_BASE_HEXADECIMAL))1444 goto err;1445 1446#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__1447 bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_BIG_ENDIAN);1448#else1449 bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_LITTLE_ENDIAN);1450#endif1451 1452 pr2("Created type: INTEGER %d-bit %ssigned %s\n",1453 size, sign ? "un" : "", hex ? "hex" : "");1454 return type;1455 1456err:1457 bt_ctf_field_type_put(type);1458 return NULL;1459}1460 1461static void ctf_writer__cleanup_data(struct ctf_writer *cw)1462{1463 unsigned int i;1464 1465 for (i = 0; i < ARRAY_SIZE(cw->data.array); i++)1466 bt_ctf_field_type_put(cw->data.array[i]);1467}1468 1469static int ctf_writer__init_data(struct ctf_writer *cw)1470{1471#define CREATE_INT_TYPE(type, size, sign, hex) \1472do { \1473 (type) = create_int_type(size, sign, hex); \1474 if (!(type)) \1475 goto err; \1476} while (0)1477 1478 CREATE_INT_TYPE(cw->data.s64, 64, true, false);1479 CREATE_INT_TYPE(cw->data.u64, 64, false, false);1480 CREATE_INT_TYPE(cw->data.s32, 32, true, false);1481 CREATE_INT_TYPE(cw->data.u32, 32, false, false);1482 CREATE_INT_TYPE(cw->data.u32_hex, 32, false, true);1483 CREATE_INT_TYPE(cw->data.u64_hex, 64, false, true);1484 1485 cw->data.string = bt_ctf_field_type_string_create();1486 if (cw->data.string)1487 return 0;1488 1489err:1490 ctf_writer__cleanup_data(cw);1491 pr_err("Failed to create data types.\n");1492 return -1;1493}1494 1495static void ctf_writer__cleanup(struct ctf_writer *cw)1496{1497 ctf_writer__cleanup_data(cw);1498 1499 bt_ctf_clock_put(cw->clock);1500 free_streams(cw);1501 bt_ctf_stream_class_put(cw->stream_class);1502 bt_ctf_writer_put(cw->writer);1503 1504 /* and NULL all the pointers */1505 memset(cw, 0, sizeof(*cw));1506}1507 1508static int ctf_writer__init(struct ctf_writer *cw, const char *path,1509 struct perf_session *session, bool tod)1510{1511 struct bt_ctf_writer *writer;1512 struct bt_ctf_stream_class *stream_class;1513 struct bt_ctf_clock *clock;1514 struct bt_ctf_field_type *pkt_ctx_type;1515 int ret;1516 1517 /* CTF writer */1518 writer = bt_ctf_writer_create(path);1519 if (!writer)1520 goto err;1521 1522 cw->writer = writer;1523 1524 /* CTF clock */1525 clock = bt_ctf_clock_create("perf_clock");1526 if (!clock) {1527 pr("Failed to create CTF clock.\n");1528 goto err_cleanup;1529 }1530 1531 cw->clock = clock;1532 1533 if (ctf_writer__setup_clock(cw, session, tod)) {1534 pr("Failed to setup CTF clock.\n");1535 goto err_cleanup;1536 }1537 1538 /* CTF stream class */1539 stream_class = bt_ctf_stream_class_create("perf_stream");1540 if (!stream_class) {1541 pr("Failed to create CTF stream class.\n");1542 goto err_cleanup;1543 }1544 1545 cw->stream_class = stream_class;1546 1547 /* CTF clock stream setup */1548 if (bt_ctf_stream_class_set_clock(stream_class, clock)) {1549 pr("Failed to assign CTF clock to stream class.\n");1550 goto err_cleanup;1551 }1552 1553 if (ctf_writer__init_data(cw))1554 goto err_cleanup;1555 1556 /* Add cpu_id for packet context */1557 pkt_ctx_type = bt_ctf_stream_class_get_packet_context_type(stream_class);1558 if (!pkt_ctx_type)1559 goto err_cleanup;1560 1561 ret = bt_ctf_field_type_structure_add_field(pkt_ctx_type, cw->data.u32, "cpu_id");1562 bt_ctf_field_type_put(pkt_ctx_type);1563 if (ret)1564 goto err_cleanup;1565 1566 /* CTF clock writer setup */1567 if (bt_ctf_writer_add_clock(writer, clock)) {1568 pr("Failed to assign CTF clock to writer.\n");1569 goto err_cleanup;1570 }1571 1572 return 0;1573 1574err_cleanup:1575 ctf_writer__cleanup(cw);1576err:1577 pr_err("Failed to setup CTF writer.\n");1578 return -1;1579}1580 1581static int ctf_writer__flush_streams(struct ctf_writer *cw)1582{1583 int cpu, ret = 0;1584 1585 for (cpu = 0; cpu < cw->stream_cnt && !ret; cpu++)1586 ret = ctf_stream__flush(cw->stream[cpu]);1587 1588 return ret;1589}1590 1591static int convert__config(const char *var, const char *value, void *cb)1592{1593 struct convert *c = cb;1594 1595 if (!strcmp(var, "convert.queue-size"))1596 return perf_config_u64(&c->queue_size, var, value);1597 1598 return 0;1599}1600 1601int bt_convert__perf2ctf(const char *input, const char *path,1602 struct perf_data_convert_opts *opts)1603{1604 struct perf_session *session;1605 struct perf_data data = {1606 .path = input,1607 .mode = PERF_DATA_MODE_READ,1608 .force = opts->force,1609 };1610 struct convert c = {};1611 struct ctf_writer *cw = &c.writer;1612 int err;1613 1614 perf_tool__init(&c.tool, /*ordered_events=*/true);1615 c.tool.sample = process_sample_event;1616 c.tool.mmap = perf_event__process_mmap;1617 c.tool.mmap2 = perf_event__process_mmap2;1618 c.tool.comm = perf_event__process_comm;1619 c.tool.exit = perf_event__process_exit;1620 c.tool.fork = perf_event__process_fork;1621 c.tool.lost = perf_event__process_lost;1622 c.tool.tracing_data = perf_event__process_tracing_data;1623 c.tool.build_id = perf_event__process_build_id;1624 c.tool.namespaces = perf_event__process_namespaces;1625 c.tool.ordering_requires_timestamps = true;1626 1627 if (opts->all) {1628 c.tool.comm = process_comm_event;1629 c.tool.exit = process_exit_event;1630 c.tool.fork = process_fork_event;1631 c.tool.mmap = process_mmap_event;1632 c.tool.mmap2 = process_mmap2_event;1633 }1634 1635 err = perf_config(convert__config, &c);1636 if (err)1637 return err;1638 1639 err = -1;1640 /* perf.data session */1641 session = perf_session__new(&data, &c.tool);1642 if (IS_ERR(session))1643 return PTR_ERR(session);1644 1645 /* CTF writer */1646 if (ctf_writer__init(cw, path, session, opts->tod))1647 goto free_session;1648 1649 if (c.queue_size) {1650 ordered_events__set_alloc_size(&session->ordered_events,1651 c.queue_size);1652 }1653 1654 /* CTF writer env/clock setup */1655 if (ctf_writer__setup_env(cw, session))1656 goto free_writer;1657 1658 /* CTF events setup */1659 if (setup_events(cw, session))1660 goto free_writer;1661 1662 if (opts->all && setup_non_sample_events(cw, session))1663 goto free_writer;1664 1665 if (setup_streams(cw, session))1666 goto free_writer;1667 1668 err = perf_session__process_events(session);1669 if (!err)1670 err = ctf_writer__flush_streams(cw);1671 else1672 pr_err("Error during conversion.\n");1673 1674 fprintf(stderr,1675 "[ perf data convert: Converted '%s' into CTF data '%s' ]\n",1676 data.path, path);1677 1678 fprintf(stderr,1679 "[ perf data convert: Converted and wrote %.3f MB (%" PRIu64 " samples",1680 (double) c.events_size / 1024.0 / 1024.0,1681 c.events_count);1682 1683 if (!c.non_sample_count)1684 fprintf(stderr, ") ]\n");1685 else1686 fprintf(stderr, ", %" PRIu64 " non-samples) ]\n", c.non_sample_count);1687 1688 cleanup_events(session);1689 perf_session__delete(session);1690 ctf_writer__cleanup(cw);1691 1692 return err;1693 1694free_writer:1695 ctf_writer__cleanup(cw);1696free_session:1697 perf_session__delete(session);1698 pr_err("Error during conversion setup.\n");1699 return err;1700}1701