1 #include <linux/kernel.h>
2 #include <traceevent/event-parse.h>
16 #include "perf_regs.h"
19 #include "thread-stack.h"
21 static int perf_session__deliver_event(struct perf_session *session,
22 union perf_event *event,
23 struct perf_sample *sample,
24 struct perf_tool *tool,
27 static int perf_session__open(struct perf_session *session)
29 struct perf_data_file *file = session->file;
31 if (perf_session__read_header(session) < 0) {
32 pr_err("incompatible file format (rerun with -v to learn more)");
36 if (perf_data_file__is_pipe(file))
39 if (!perf_evlist__valid_sample_type(session->evlist)) {
40 pr_err("non matching sample_type");
44 if (!perf_evlist__valid_sample_id_all(session->evlist)) {
45 pr_err("non matching sample_id_all");
49 if (!perf_evlist__valid_read_format(session->evlist)) {
50 pr_err("non matching read_format");
57 void perf_session__set_id_hdr_size(struct perf_session *session)
59 u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist);
61 machines__set_id_hdr_size(&session->machines, id_hdr_size);
64 int perf_session__create_kernel_maps(struct perf_session *session)
66 int ret = machine__create_kernel_maps(&session->machines.host);
69 ret = machines__create_guest_kernel_maps(&session->machines);
73 static void perf_session__destroy_kernel_maps(struct perf_session *session)
75 machines__destroy_kernel_maps(&session->machines);
78 static bool perf_session__has_comm_exec(struct perf_session *session)
80 struct perf_evsel *evsel;
82 evlist__for_each(session->evlist, evsel) {
83 if (evsel->attr.comm_exec)
90 static void perf_session__set_comm_exec(struct perf_session *session)
92 bool comm_exec = perf_session__has_comm_exec(session);
94 machines__set_comm_exec(&session->machines, comm_exec);
97 static int ordered_events__deliver_event(struct ordered_events *oe,
98 struct ordered_event *event)
100 struct perf_sample sample;
101 struct perf_session *session = container_of(oe, struct perf_session,
103 int ret = perf_evlist__parse_sample(session->evlist, event->event, &sample);
106 pr_err("Can't parse sample, err = %d\n", ret);
110 return perf_session__deliver_event(session, event->event, &sample,
111 session->tool, event->file_offset);
114 struct perf_session *perf_session__new(struct perf_data_file *file,
115 bool repipe, struct perf_tool *tool)
117 struct perf_session *session = zalloc(sizeof(*session));
122 session->repipe = repipe;
123 session->tool = tool;
124 INIT_LIST_HEAD(&session->auxtrace_index);
125 machines__init(&session->machines);
126 ordered_events__init(&session->ordered_events, ordered_events__deliver_event);
129 if (perf_data_file__open(file))
132 session->file = file;
134 if (perf_data_file__is_read(file)) {
135 if (perf_session__open(session) < 0)
138 perf_session__set_id_hdr_size(session);
139 perf_session__set_comm_exec(session);
143 if (!file || perf_data_file__is_write(file)) {
145 * In O_RDONLY mode this will be performed when reading the
146 * kernel MMAP event, in perf_event__process_mmap().
148 if (perf_session__create_kernel_maps(session) < 0)
149 pr_warning("Cannot read kernel map\n");
152 if (tool && tool->ordering_requires_timestamps &&
153 tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) {
154 dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
155 tool->ordered_events = false;
161 perf_data_file__close(file);
163 perf_session__delete(session);
168 static void perf_session__delete_threads(struct perf_session *session)
170 machine__delete_threads(&session->machines.host);
173 static void perf_session_env__delete(struct perf_session_env *env)
175 zfree(&env->hostname);
176 zfree(&env->os_release);
177 zfree(&env->version);
179 zfree(&env->cpu_desc);
182 zfree(&env->cmdline);
183 zfree(&env->sibling_cores);
184 zfree(&env->sibling_threads);
185 zfree(&env->numa_nodes);
186 zfree(&env->pmu_mappings);
189 void perf_session__delete(struct perf_session *session)
191 auxtrace__free(session);
192 auxtrace_index__free(&session->auxtrace_index);
193 perf_session__destroy_kernel_maps(session);
194 perf_session__delete_threads(session);
195 perf_session_env__delete(&session->header.env);
196 machines__exit(&session->machines);
198 perf_data_file__close(session->file);
202 static int process_event_synth_tracing_data_stub(struct perf_tool *tool
204 union perf_event *event
206 struct perf_session *session
209 dump_printf(": unhandled!\n");
213 static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused,
214 union perf_event *event __maybe_unused,
215 struct perf_evlist **pevlist
218 dump_printf(": unhandled!\n");
222 static int process_event_sample_stub(struct perf_tool *tool __maybe_unused,
223 union perf_event *event __maybe_unused,
224 struct perf_sample *sample __maybe_unused,
225 struct perf_evsel *evsel __maybe_unused,
226 struct machine *machine __maybe_unused)
228 dump_printf(": unhandled!\n");
232 static int process_event_stub(struct perf_tool *tool __maybe_unused,
233 union perf_event *event __maybe_unused,
234 struct perf_sample *sample __maybe_unused,
235 struct machine *machine __maybe_unused)
237 dump_printf(": unhandled!\n");
241 static int process_build_id_stub(struct perf_tool *tool __maybe_unused,
242 union perf_event *event __maybe_unused,
243 struct perf_session *session __maybe_unused)
245 dump_printf(": unhandled!\n");
249 static int process_finished_round_stub(struct perf_tool *tool __maybe_unused,
250 union perf_event *event __maybe_unused,
251 struct ordered_events *oe __maybe_unused)
253 dump_printf(": unhandled!\n");
257 static int process_finished_round(struct perf_tool *tool,
258 union perf_event *event,
259 struct ordered_events *oe);
261 static int process_id_index_stub(struct perf_tool *tool __maybe_unused,
262 union perf_event *event __maybe_unused,
263 struct perf_session *perf_session
266 dump_printf(": unhandled!\n");
270 static int process_event_auxtrace_info_stub(struct perf_tool *tool __maybe_unused,
271 union perf_event *event __maybe_unused,
272 struct perf_session *session __maybe_unused)
274 dump_printf(": unhandled!\n");
278 static int skipn(int fd, off_t n)
284 ret = read(fd, buf, min(n, (off_t)sizeof(buf)));
293 static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused,
294 union perf_event *event,
295 struct perf_session *session
298 dump_printf(": unhandled!\n");
299 if (perf_data_file__is_pipe(session->file))
300 skipn(perf_data_file__fd(session->file), event->auxtrace.size);
301 return event->auxtrace.size;
305 int process_event_auxtrace_error_stub(struct perf_tool *tool __maybe_unused,
306 union perf_event *event __maybe_unused,
307 struct perf_session *session __maybe_unused)
309 dump_printf(": unhandled!\n");
313 void perf_tool__fill_defaults(struct perf_tool *tool)
315 if (tool->sample == NULL)
316 tool->sample = process_event_sample_stub;
317 if (tool->mmap == NULL)
318 tool->mmap = process_event_stub;
319 if (tool->mmap2 == NULL)
320 tool->mmap2 = process_event_stub;
321 if (tool->comm == NULL)
322 tool->comm = process_event_stub;
323 if (tool->fork == NULL)
324 tool->fork = process_event_stub;
325 if (tool->exit == NULL)
326 tool->exit = process_event_stub;
327 if (tool->lost == NULL)
328 tool->lost = perf_event__process_lost;
329 if (tool->lost_samples == NULL)
330 tool->lost_samples = perf_event__process_lost_samples;
331 if (tool->aux == NULL)
332 tool->aux = perf_event__process_aux;
333 if (tool->itrace_start == NULL)
334 tool->itrace_start = perf_event__process_itrace_start;
335 if (tool->read == NULL)
336 tool->read = process_event_sample_stub;
337 if (tool->throttle == NULL)
338 tool->throttle = process_event_stub;
339 if (tool->unthrottle == NULL)
340 tool->unthrottle = process_event_stub;
341 if (tool->attr == NULL)
342 tool->attr = process_event_synth_attr_stub;
343 if (tool->tracing_data == NULL)
344 tool->tracing_data = process_event_synth_tracing_data_stub;
345 if (tool->build_id == NULL)
346 tool->build_id = process_build_id_stub;
347 if (tool->finished_round == NULL) {
348 if (tool->ordered_events)
349 tool->finished_round = process_finished_round;
351 tool->finished_round = process_finished_round_stub;
353 if (tool->id_index == NULL)
354 tool->id_index = process_id_index_stub;
355 if (tool->auxtrace_info == NULL)
356 tool->auxtrace_info = process_event_auxtrace_info_stub;
357 if (tool->auxtrace == NULL)
358 tool->auxtrace = process_event_auxtrace_stub;
359 if (tool->auxtrace_error == NULL)
360 tool->auxtrace_error = process_event_auxtrace_error_stub;
363 static void swap_sample_id_all(union perf_event *event, void *data)
365 void *end = (void *) event + event->header.size;
366 int size = end - data;
368 BUG_ON(size % sizeof(u64));
369 mem_bswap_64(data, size);
372 static void perf_event__all64_swap(union perf_event *event,
373 bool sample_id_all __maybe_unused)
375 struct perf_event_header *hdr = &event->header;
376 mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr));
379 static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
381 event->comm.pid = bswap_32(event->comm.pid);
382 event->comm.tid = bswap_32(event->comm.tid);
385 void *data = &event->comm.comm;
387 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
388 swap_sample_id_all(event, data);
392 static void perf_event__mmap_swap(union perf_event *event,
395 event->mmap.pid = bswap_32(event->mmap.pid);
396 event->mmap.tid = bswap_32(event->mmap.tid);
397 event->mmap.start = bswap_64(event->mmap.start);
398 event->mmap.len = bswap_64(event->mmap.len);
399 event->mmap.pgoff = bswap_64(event->mmap.pgoff);
402 void *data = &event->mmap.filename;
404 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
405 swap_sample_id_all(event, data);
409 static void perf_event__mmap2_swap(union perf_event *event,
412 event->mmap2.pid = bswap_32(event->mmap2.pid);
413 event->mmap2.tid = bswap_32(event->mmap2.tid);
414 event->mmap2.start = bswap_64(event->mmap2.start);
415 event->mmap2.len = bswap_64(event->mmap2.len);
416 event->mmap2.pgoff = bswap_64(event->mmap2.pgoff);
417 event->mmap2.maj = bswap_32(event->mmap2.maj);
418 event->mmap2.min = bswap_32(event->mmap2.min);
419 event->mmap2.ino = bswap_64(event->mmap2.ino);
422 void *data = &event->mmap2.filename;
424 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
425 swap_sample_id_all(event, data);
428 static void perf_event__task_swap(union perf_event *event, bool sample_id_all)
430 event->fork.pid = bswap_32(event->fork.pid);
431 event->fork.tid = bswap_32(event->fork.tid);
432 event->fork.ppid = bswap_32(event->fork.ppid);
433 event->fork.ptid = bswap_32(event->fork.ptid);
434 event->fork.time = bswap_64(event->fork.time);
437 swap_sample_id_all(event, &event->fork + 1);
440 static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
442 event->read.pid = bswap_32(event->read.pid);
443 event->read.tid = bswap_32(event->read.tid);
444 event->read.value = bswap_64(event->read.value);
445 event->read.time_enabled = bswap_64(event->read.time_enabled);
446 event->read.time_running = bswap_64(event->read.time_running);
447 event->read.id = bswap_64(event->read.id);
450 swap_sample_id_all(event, &event->read + 1);
453 static void perf_event__aux_swap(union perf_event *event, bool sample_id_all)
455 event->aux.aux_offset = bswap_64(event->aux.aux_offset);
456 event->aux.aux_size = bswap_64(event->aux.aux_size);
457 event->aux.flags = bswap_64(event->aux.flags);
460 swap_sample_id_all(event, &event->aux + 1);
463 static void perf_event__itrace_start_swap(union perf_event *event,
466 event->itrace_start.pid = bswap_32(event->itrace_start.pid);
467 event->itrace_start.tid = bswap_32(event->itrace_start.tid);
470 swap_sample_id_all(event, &event->itrace_start + 1);
473 static void perf_event__throttle_swap(union perf_event *event,
476 event->throttle.time = bswap_64(event->throttle.time);
477 event->throttle.id = bswap_64(event->throttle.id);
478 event->throttle.stream_id = bswap_64(event->throttle.stream_id);
481 swap_sample_id_all(event, &event->throttle + 1);
484 static u8 revbyte(u8 b)
486 int rev = (b >> 4) | ((b & 0xf) << 4);
487 rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2);
488 rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1);
493 * XXX this is hack in attempt to carry flags bitfield
494 * throught endian village. ABI says:
496 * Bit-fields are allocated from right to left (least to most significant)
497 * on little-endian implementations and from left to right (most to least
498 * significant) on big-endian implementations.
500 * The above seems to be byte specific, so we need to reverse each
501 * byte of the bitfield. 'Internet' also says this might be implementation
502 * specific and we probably need proper fix and carry perf_event_attr
503 * bitfield flags in separate data file FEAT_ section. Thought this seems
506 static void swap_bitfield(u8 *p, unsigned len)
510 for (i = 0; i < len; i++) {
516 /* exported for swapping attributes in file header */
517 void perf_event__attr_swap(struct perf_event_attr *attr)
519 attr->type = bswap_32(attr->type);
520 attr->size = bswap_32(attr->size);
522 #define bswap_safe(f, n) \
523 (attr->size > (offsetof(struct perf_event_attr, f) + \
524 sizeof(attr->f) * (n)))
525 #define bswap_field(f, sz) \
527 if (bswap_safe(f, 0)) \
528 attr->f = bswap_##sz(attr->f); \
530 #define bswap_field_32(f) bswap_field(f, 32)
531 #define bswap_field_64(f) bswap_field(f, 64)
533 bswap_field_64(config);
534 bswap_field_64(sample_period);
535 bswap_field_64(sample_type);
536 bswap_field_64(read_format);
537 bswap_field_32(wakeup_events);
538 bswap_field_32(bp_type);
539 bswap_field_64(bp_addr);
540 bswap_field_64(bp_len);
541 bswap_field_64(branch_sample_type);
542 bswap_field_64(sample_regs_user);
543 bswap_field_32(sample_stack_user);
544 bswap_field_32(aux_watermark);
547 * After read_format are bitfields. Check read_format because
548 * we are unable to use offsetof on bitfield.
550 if (bswap_safe(read_format, 1))
551 swap_bitfield((u8 *) (&attr->read_format + 1),
553 #undef bswap_field_64
554 #undef bswap_field_32
559 static void perf_event__hdr_attr_swap(union perf_event *event,
560 bool sample_id_all __maybe_unused)
564 perf_event__attr_swap(&event->attr.attr);
566 size = event->header.size;
567 size -= (void *)&event->attr.id - (void *)event;
568 mem_bswap_64(event->attr.id, size);
571 static void perf_event__event_type_swap(union perf_event *event,
572 bool sample_id_all __maybe_unused)
574 event->event_type.event_type.event_id =
575 bswap_64(event->event_type.event_type.event_id);
578 static void perf_event__tracing_data_swap(union perf_event *event,
579 bool sample_id_all __maybe_unused)
581 event->tracing_data.size = bswap_32(event->tracing_data.size);
584 static void perf_event__auxtrace_info_swap(union perf_event *event,
585 bool sample_id_all __maybe_unused)
589 event->auxtrace_info.type = bswap_32(event->auxtrace_info.type);
591 size = event->header.size;
592 size -= (void *)&event->auxtrace_info.priv - (void *)event;
593 mem_bswap_64(event->auxtrace_info.priv, size);
596 static void perf_event__auxtrace_swap(union perf_event *event,
597 bool sample_id_all __maybe_unused)
599 event->auxtrace.size = bswap_64(event->auxtrace.size);
600 event->auxtrace.offset = bswap_64(event->auxtrace.offset);
601 event->auxtrace.reference = bswap_64(event->auxtrace.reference);
602 event->auxtrace.idx = bswap_32(event->auxtrace.idx);
603 event->auxtrace.tid = bswap_32(event->auxtrace.tid);
604 event->auxtrace.cpu = bswap_32(event->auxtrace.cpu);
607 static void perf_event__auxtrace_error_swap(union perf_event *event,
608 bool sample_id_all __maybe_unused)
610 event->auxtrace_error.type = bswap_32(event->auxtrace_error.type);
611 event->auxtrace_error.code = bswap_32(event->auxtrace_error.code);
612 event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu);
613 event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid);
614 event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid);
615 event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip);
618 typedef void (*perf_event__swap_op)(union perf_event *event,
621 static perf_event__swap_op perf_event__swap_ops[] = {
622 [PERF_RECORD_MMAP] = perf_event__mmap_swap,
623 [PERF_RECORD_MMAP2] = perf_event__mmap2_swap,
624 [PERF_RECORD_COMM] = perf_event__comm_swap,
625 [PERF_RECORD_FORK] = perf_event__task_swap,
626 [PERF_RECORD_EXIT] = perf_event__task_swap,
627 [PERF_RECORD_LOST] = perf_event__all64_swap,
628 [PERF_RECORD_READ] = perf_event__read_swap,
629 [PERF_RECORD_THROTTLE] = perf_event__throttle_swap,
630 [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap,
631 [PERF_RECORD_SAMPLE] = perf_event__all64_swap,
632 [PERF_RECORD_AUX] = perf_event__aux_swap,
633 [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
634 [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
635 [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
636 [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
637 [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
638 [PERF_RECORD_HEADER_BUILD_ID] = NULL,
639 [PERF_RECORD_ID_INDEX] = perf_event__all64_swap,
640 [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap,
641 [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap,
642 [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap,
643 [PERF_RECORD_HEADER_MAX] = NULL,
647 * When perf record finishes a pass on every buffers, it records this pseudo
649 * We record the max timestamp t found in the pass n.
650 * Assuming these timestamps are monotonic across cpus, we know that if
651 * a buffer still has events with timestamps below t, they will be all
652 * available and then read in the pass n + 1.
653 * Hence when we start to read the pass n + 2, we can safely flush every
654 * events with timestamps below t.
656 * ============ PASS n =================
659 * cnt1 timestamps | cnt2 timestamps
662 * - | 4 <--- max recorded
664 * ============ PASS n + 1 ==============
667 * cnt1 timestamps | cnt2 timestamps
670 * 5 | 7 <---- max recorded
672 * Flush every events below timestamp 4
674 * ============ PASS n + 2 ==============
677 * cnt1 timestamps | cnt2 timestamps
682 * Flush every events below timestamp 7
685 static int process_finished_round(struct perf_tool *tool __maybe_unused,
686 union perf_event *event __maybe_unused,
687 struct ordered_events *oe)
690 fprintf(stdout, "\n");
691 return ordered_events__flush(oe, OE_FLUSH__ROUND);
694 int perf_session__queue_event(struct perf_session *s, union perf_event *event,
695 struct perf_sample *sample, u64 file_offset)
697 return ordered_events__queue(&s->ordered_events, event, sample, file_offset);
700 static void callchain__lbr_callstack_printf(struct perf_sample *sample)
702 struct ip_callchain *callchain = sample->callchain;
703 struct branch_stack *lbr_stack = sample->branch_stack;
704 u64 kernel_callchain_nr = callchain->nr;
707 for (i = 0; i < kernel_callchain_nr; i++) {
708 if (callchain->ips[i] == PERF_CONTEXT_USER)
712 if ((i != kernel_callchain_nr) && lbr_stack->nr) {
715 * LBR callstack can only get user call chain,
716 * i is kernel call chain number,
717 * 1 is PERF_CONTEXT_USER.
719 * The user call chain is stored in LBR registers.
720 * LBR are pair registers. The caller is stored
721 * in "from" register, while the callee is stored
723 * For example, there is a call stack
724 * "A"->"B"->"C"->"D".
725 * The LBR registers will recorde like
726 * "C"->"D", "B"->"C", "A"->"B".
727 * So only the first "to" register and all "from"
728 * registers are needed to construct the whole stack.
730 total_nr = i + 1 + lbr_stack->nr + 1;
731 kernel_callchain_nr = i + 1;
733 printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr);
735 for (i = 0; i < kernel_callchain_nr; i++)
736 printf("..... %2d: %016" PRIx64 "\n",
737 i, callchain->ips[i]);
739 printf("..... %2d: %016" PRIx64 "\n",
740 (int)(kernel_callchain_nr), lbr_stack->entries[0].to);
741 for (i = 0; i < lbr_stack->nr; i++)
742 printf("..... %2d: %016" PRIx64 "\n",
743 (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from);
747 static void callchain__printf(struct perf_evsel *evsel,
748 struct perf_sample *sample)
751 struct ip_callchain *callchain = sample->callchain;
753 if (has_branch_callstack(evsel))
754 callchain__lbr_callstack_printf(sample);
756 printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr);
758 for (i = 0; i < callchain->nr; i++)
759 printf("..... %2d: %016" PRIx64 "\n",
760 i, callchain->ips[i]);
763 static void branch_stack__printf(struct perf_sample *sample)
767 printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
769 for (i = 0; i < sample->branch_stack->nr; i++)
770 printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n",
771 i, sample->branch_stack->entries[i].from,
772 sample->branch_stack->entries[i].to);
775 static void regs_dump__printf(u64 mask, u64 *regs)
779 for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) {
782 printf(".... %-5s 0x%" PRIx64 "\n",
783 perf_reg_name(rid), val);
787 static const char *regs_abi[] = {
788 [PERF_SAMPLE_REGS_ABI_NONE] = "none",
789 [PERF_SAMPLE_REGS_ABI_32] = "32-bit",
790 [PERF_SAMPLE_REGS_ABI_64] = "64-bit",
793 static inline const char *regs_dump_abi(struct regs_dump *d)
795 if (d->abi > PERF_SAMPLE_REGS_ABI_64)
798 return regs_abi[d->abi];
801 static void regs__printf(const char *type, struct regs_dump *regs)
803 u64 mask = regs->mask;
805 printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n",
808 regs_dump_abi(regs));
810 regs_dump__printf(mask, regs->regs);
813 static void regs_user__printf(struct perf_sample *sample)
815 struct regs_dump *user_regs = &sample->user_regs;
818 regs__printf("user", user_regs);
821 static void regs_intr__printf(struct perf_sample *sample)
823 struct regs_dump *intr_regs = &sample->intr_regs;
826 regs__printf("intr", intr_regs);
829 static void stack_user__printf(struct stack_dump *dump)
831 printf("... ustack: size %" PRIu64 ", offset 0x%x\n",
832 dump->size, dump->offset);
835 static void perf_evlist__print_tstamp(struct perf_evlist *evlist,
836 union perf_event *event,
837 struct perf_sample *sample)
839 u64 sample_type = __perf_evlist__combined_sample_type(evlist);
841 if (event->header.type != PERF_RECORD_SAMPLE &&
842 !perf_evlist__sample_id_all(evlist)) {
843 fputs("-1 -1 ", stdout);
847 if ((sample_type & PERF_SAMPLE_CPU))
848 printf("%u ", sample->cpu);
850 if (sample_type & PERF_SAMPLE_TIME)
851 printf("%" PRIu64 " ", sample->time);
854 static void sample_read__printf(struct perf_sample *sample, u64 read_format)
856 printf("... sample_read:\n");
858 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
859 printf("...... time enabled %016" PRIx64 "\n",
860 sample->read.time_enabled);
862 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
863 printf("...... time running %016" PRIx64 "\n",
864 sample->read.time_running);
866 if (read_format & PERF_FORMAT_GROUP) {
869 printf(".... group nr %" PRIu64 "\n", sample->read.group.nr);
871 for (i = 0; i < sample->read.group.nr; i++) {
872 struct sample_read_value *value;
874 value = &sample->read.group.values[i];
875 printf("..... id %016" PRIx64
876 ", value %016" PRIx64 "\n",
877 value->id, value->value);
880 printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n",
881 sample->read.one.id, sample->read.one.value);
884 static void dump_event(struct perf_evlist *evlist, union perf_event *event,
885 u64 file_offset, struct perf_sample *sample)
890 printf("\n%#" PRIx64 " [%#x]: event: %d\n",
891 file_offset, event->header.size, event->header.type);
896 perf_evlist__print_tstamp(evlist, event, sample);
898 printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset,
899 event->header.size, perf_event__name(event->header.type));
902 static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
903 struct perf_sample *sample)
910 printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
911 event->header.misc, sample->pid, sample->tid, sample->ip,
912 sample->period, sample->addr);
914 sample_type = evsel->attr.sample_type;
916 if (sample_type & PERF_SAMPLE_CALLCHAIN)
917 callchain__printf(evsel, sample);
919 if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel))
920 branch_stack__printf(sample);
922 if (sample_type & PERF_SAMPLE_REGS_USER)
923 regs_user__printf(sample);
925 if (sample_type & PERF_SAMPLE_REGS_INTR)
926 regs_intr__printf(sample);
928 if (sample_type & PERF_SAMPLE_STACK_USER)
929 stack_user__printf(&sample->user_stack);
931 if (sample_type & PERF_SAMPLE_WEIGHT)
932 printf("... weight: %" PRIu64 "\n", sample->weight);
934 if (sample_type & PERF_SAMPLE_DATA_SRC)
935 printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
937 if (sample_type & PERF_SAMPLE_TRANSACTION)
938 printf("... transaction: %" PRIx64 "\n", sample->transaction);
940 if (sample_type & PERF_SAMPLE_READ)
941 sample_read__printf(sample, evsel->attr.read_format);
944 static struct machine *machines__find_for_cpumode(struct machines *machines,
945 union perf_event *event,
946 struct perf_sample *sample)
948 const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
949 struct machine *machine;
952 ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
953 (cpumode == PERF_RECORD_MISC_GUEST_USER))) {
956 if (event->header.type == PERF_RECORD_MMAP
957 || event->header.type == PERF_RECORD_MMAP2)
958 pid = event->mmap.pid;
962 machine = machines__find(machines, pid);
964 machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID);
968 return &machines->host;
971 static int deliver_sample_value(struct perf_evlist *evlist,
972 struct perf_tool *tool,
973 union perf_event *event,
974 struct perf_sample *sample,
975 struct sample_read_value *v,
976 struct machine *machine)
978 struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id);
982 sample->period = v->value - sid->period;
983 sid->period = v->value;
986 if (!sid || sid->evsel == NULL) {
987 ++evlist->stats.nr_unknown_id;
991 return tool->sample(tool, event, sample, sid->evsel, machine);
994 static int deliver_sample_group(struct perf_evlist *evlist,
995 struct perf_tool *tool,
996 union perf_event *event,
997 struct perf_sample *sample,
998 struct machine *machine)
1003 for (i = 0; i < sample->read.group.nr; i++) {
1004 ret = deliver_sample_value(evlist, tool, event, sample,
1005 &sample->read.group.values[i],
1015 perf_evlist__deliver_sample(struct perf_evlist *evlist,
1016 struct perf_tool *tool,
1017 union perf_event *event,
1018 struct perf_sample *sample,
1019 struct perf_evsel *evsel,
1020 struct machine *machine)
1022 /* We know evsel != NULL. */
1023 u64 sample_type = evsel->attr.sample_type;
1024 u64 read_format = evsel->attr.read_format;
1026 /* Standard sample delievery. */
1027 if (!(sample_type & PERF_SAMPLE_READ))
1028 return tool->sample(tool, event, sample, evsel, machine);
1030 /* For PERF_SAMPLE_READ we have either single or group mode. */
1031 if (read_format & PERF_FORMAT_GROUP)
1032 return deliver_sample_group(evlist, tool, event, sample,
1035 return deliver_sample_value(evlist, tool, event, sample,
1036 &sample->read.one, machine);
1039 static int machines__deliver_event(struct machines *machines,
1040 struct perf_evlist *evlist,
1041 union perf_event *event,
1042 struct perf_sample *sample,
1043 struct perf_tool *tool, u64 file_offset)
1045 struct perf_evsel *evsel;
1046 struct machine *machine;
1048 dump_event(evlist, event, file_offset, sample);
1050 evsel = perf_evlist__id2evsel(evlist, sample->id);
1052 machine = machines__find_for_cpumode(machines, event, sample);
1054 switch (event->header.type) {
1055 case PERF_RECORD_SAMPLE:
1056 dump_sample(evsel, event, sample);
1057 if (evsel == NULL) {
1058 ++evlist->stats.nr_unknown_id;
1061 if (machine == NULL) {
1062 ++evlist->stats.nr_unprocessable_samples;
1065 return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
1066 case PERF_RECORD_MMAP:
1067 return tool->mmap(tool, event, sample, machine);
1068 case PERF_RECORD_MMAP2:
1069 if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT)
1070 ++evlist->stats.nr_proc_map_timeout;
1071 return tool->mmap2(tool, event, sample, machine);
1072 case PERF_RECORD_COMM:
1073 return tool->comm(tool, event, sample, machine);
1074 case PERF_RECORD_FORK:
1075 return tool->fork(tool, event, sample, machine);
1076 case PERF_RECORD_EXIT:
1077 return tool->exit(tool, event, sample, machine);
1078 case PERF_RECORD_LOST:
1079 if (tool->lost == perf_event__process_lost)
1080 evlist->stats.total_lost += event->lost.lost;
1081 return tool->lost(tool, event, sample, machine);
1082 case PERF_RECORD_LOST_SAMPLES:
1083 if (tool->lost_samples == perf_event__process_lost_samples)
1084 evlist->stats.total_lost_samples += event->lost_samples.lost;
1085 return tool->lost_samples(tool, event, sample, machine);
1086 case PERF_RECORD_READ:
1087 return tool->read(tool, event, sample, evsel, machine);
1088 case PERF_RECORD_THROTTLE:
1089 return tool->throttle(tool, event, sample, machine);
1090 case PERF_RECORD_UNTHROTTLE:
1091 return tool->unthrottle(tool, event, sample, machine);
1092 case PERF_RECORD_AUX:
1093 return tool->aux(tool, event, sample, machine);
1094 case PERF_RECORD_ITRACE_START:
1095 return tool->itrace_start(tool, event, sample, machine);
1097 ++evlist->stats.nr_unknown_events;
1102 static int perf_session__deliver_event(struct perf_session *session,
1103 union perf_event *event,
1104 struct perf_sample *sample,
1105 struct perf_tool *tool,
1110 ret = auxtrace__process_event(session, event, sample, tool);
1116 return machines__deliver_event(&session->machines, session->evlist,
1117 event, sample, tool, file_offset);
1120 static s64 perf_session__process_user_event(struct perf_session *session,
1121 union perf_event *event,
1124 struct ordered_events *oe = &session->ordered_events;
1125 struct perf_tool *tool = session->tool;
1126 int fd = perf_data_file__fd(session->file);
1129 dump_event(session->evlist, event, file_offset, NULL);
1131 /* These events are processed right away */
1132 switch (event->header.type) {
1133 case PERF_RECORD_HEADER_ATTR:
1134 err = tool->attr(tool, event, &session->evlist);
1136 perf_session__set_id_hdr_size(session);
1137 perf_session__set_comm_exec(session);
1140 case PERF_RECORD_HEADER_EVENT_TYPE:
1142 * Depreceated, but we need to handle it for sake
1143 * of old data files create in pipe mode.
1146 case PERF_RECORD_HEADER_TRACING_DATA:
1147 /* setup for reading amidst mmap */
1148 lseek(fd, file_offset, SEEK_SET);
1149 return tool->tracing_data(tool, event, session);
1150 case PERF_RECORD_HEADER_BUILD_ID:
1151 return tool->build_id(tool, event, session);
1152 case PERF_RECORD_FINISHED_ROUND:
1153 return tool->finished_round(tool, event, oe);
1154 case PERF_RECORD_ID_INDEX:
1155 return tool->id_index(tool, event, session);
1156 case PERF_RECORD_AUXTRACE_INFO:
1157 return tool->auxtrace_info(tool, event, session);
1158 case PERF_RECORD_AUXTRACE:
1159 /* setup for reading amidst mmap */
1160 lseek(fd, file_offset + event->header.size, SEEK_SET);
1161 return tool->auxtrace(tool, event, session);
1162 case PERF_RECORD_AUXTRACE_ERROR:
1163 perf_session__auxtrace_error_inc(session, event);
1164 return tool->auxtrace_error(tool, event, session);
1170 int perf_session__deliver_synth_event(struct perf_session *session,
1171 union perf_event *event,
1172 struct perf_sample *sample)
1174 struct perf_evlist *evlist = session->evlist;
1175 struct perf_tool *tool = session->tool;
1177 events_stats__inc(&evlist->stats, event->header.type);
1179 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
1180 return perf_session__process_user_event(session, event, 0);
1182 return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0);
1185 static void event_swap(union perf_event *event, bool sample_id_all)
1187 perf_event__swap_op swap;
1189 swap = perf_event__swap_ops[event->header.type];
1191 swap(event, sample_id_all);
1194 int perf_session__peek_event(struct perf_session *session, off_t file_offset,
1195 void *buf, size_t buf_sz,
1196 union perf_event **event_ptr,
1197 struct perf_sample *sample)
1199 union perf_event *event;
1200 size_t hdr_sz, rest;
1203 if (session->one_mmap && !session->header.needs_swap) {
1204 event = file_offset - session->one_mmap_offset +
1205 session->one_mmap_addr;
1206 goto out_parse_sample;
1209 if (perf_data_file__is_pipe(session->file))
1212 fd = perf_data_file__fd(session->file);
1213 hdr_sz = sizeof(struct perf_event_header);
1215 if (buf_sz < hdr_sz)
1218 if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 ||
1219 readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz)
1222 event = (union perf_event *)buf;
1224 if (session->header.needs_swap)
1225 perf_event_header__bswap(&event->header);
1227 if (event->header.size < hdr_sz || event->header.size > buf_sz)
1230 rest = event->header.size - hdr_sz;
1232 if (readn(fd, buf, rest) != (ssize_t)rest)
1235 if (session->header.needs_swap)
1236 event_swap(event, perf_evlist__sample_id_all(session->evlist));
1240 if (sample && event->header.type < PERF_RECORD_USER_TYPE_START &&
1241 perf_evlist__parse_sample(session->evlist, event, sample))
1249 static s64 perf_session__process_event(struct perf_session *session,
1250 union perf_event *event, u64 file_offset)
1252 struct perf_evlist *evlist = session->evlist;
1253 struct perf_tool *tool = session->tool;
1254 struct perf_sample sample;
1257 if (session->header.needs_swap)
1258 event_swap(event, perf_evlist__sample_id_all(evlist));
1260 if (event->header.type >= PERF_RECORD_HEADER_MAX)
1263 events_stats__inc(&evlist->stats, event->header.type);
1265 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
1266 return perf_session__process_user_event(session, event, file_offset);
1269 * For all kernel events we get the sample data
1271 ret = perf_evlist__parse_sample(evlist, event, &sample);
1275 if (tool->ordered_events) {
1276 ret = perf_session__queue_event(session, event, &sample, file_offset);
1281 return perf_session__deliver_event(session, event, &sample, tool,
1285 void perf_event_header__bswap(struct perf_event_header *hdr)
1287 hdr->type = bswap_32(hdr->type);
1288 hdr->misc = bswap_16(hdr->misc);
1289 hdr->size = bswap_16(hdr->size);
1292 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
1294 return machine__findnew_thread(&session->machines.host, -1, pid);
1297 static struct thread *perf_session__register_idle_thread(struct perf_session *session)
1299 struct thread *thread;
1301 thread = machine__findnew_thread(&session->machines.host, 0, 0);
1302 if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
1303 pr_err("problem inserting idle task.\n");
1310 static void perf_session__warn_about_errors(const struct perf_session *session)
1312 const struct events_stats *stats = &session->evlist->stats;
1313 const struct ordered_events *oe = &session->ordered_events;
1315 if (session->tool->lost == perf_event__process_lost &&
1316 stats->nr_events[PERF_RECORD_LOST] != 0) {
1317 ui__warning("Processed %d events and lost %d chunks!\n\n"
1318 "Check IO/CPU overload!\n\n",
1319 stats->nr_events[0],
1320 stats->nr_events[PERF_RECORD_LOST]);
1323 if (session->tool->lost_samples == perf_event__process_lost_samples) {
1326 drop_rate = (double)stats->total_lost_samples /
1327 (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples);
1328 if (drop_rate > 0.05) {
1329 ui__warning("Processed %" PRIu64 " samples and lost %3.2f%% samples!\n\n",
1330 stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples,
1335 if (stats->nr_unknown_events != 0) {
1336 ui__warning("Found %u unknown events!\n\n"
1337 "Is this an older tool processing a perf.data "
1338 "file generated by a more recent tool?\n\n"
1339 "If that is not the case, consider "
1340 "reporting to linux-kernel@vger.kernel.org.\n\n",
1341 stats->nr_unknown_events);
1344 if (stats->nr_unknown_id != 0) {
1345 ui__warning("%u samples with id not present in the header\n",
1346 stats->nr_unknown_id);
1349 if (stats->nr_invalid_chains != 0) {
1350 ui__warning("Found invalid callchains!\n\n"
1351 "%u out of %u events were discarded for this reason.\n\n"
1352 "Consider reporting to linux-kernel@vger.kernel.org.\n\n",
1353 stats->nr_invalid_chains,
1354 stats->nr_events[PERF_RECORD_SAMPLE]);
1357 if (stats->nr_unprocessable_samples != 0) {
1358 ui__warning("%u unprocessable samples recorded.\n"
1359 "Do you have a KVM guest running and not using 'perf kvm'?\n",
1360 stats->nr_unprocessable_samples);
1363 if (oe->nr_unordered_events != 0)
1364 ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events);
1366 events_stats__auxtrace_error_warn(stats);
1368 if (stats->nr_proc_map_timeout != 0) {
1369 ui__warning("%d map information files for pre-existing threads were\n"
1370 "not processed, if there are samples for addresses they\n"
1371 "will not be resolved, you may find out which are these\n"
1372 "threads by running with -v and redirecting the output\n"
1374 "The time limit to process proc map is too short?\n"
1375 "Increase it by --proc-map-timeout\n",
1376 stats->nr_proc_map_timeout);
1380 static int perf_session__flush_thread_stack(struct thread *thread,
1381 void *p __maybe_unused)
1383 return thread_stack__flush(thread);
1386 static int perf_session__flush_thread_stacks(struct perf_session *session)
1388 return machines__for_each_thread(&session->machines,
1389 perf_session__flush_thread_stack,
1393 volatile int session_done;
1395 static int __perf_session__process_pipe_events(struct perf_session *session)
1397 struct ordered_events *oe = &session->ordered_events;
1398 struct perf_tool *tool = session->tool;
1399 int fd = perf_data_file__fd(session->file);
1400 union perf_event *event;
1401 uint32_t size, cur_size = 0;
1408 perf_tool__fill_defaults(tool);
1411 cur_size = sizeof(union perf_event);
1413 buf = malloc(cur_size);
1418 err = readn(fd, event, sizeof(struct perf_event_header));
1423 pr_err("failed to read event header\n");
1427 if (session->header.needs_swap)
1428 perf_event_header__bswap(&event->header);
1430 size = event->header.size;
1431 if (size < sizeof(struct perf_event_header)) {
1432 pr_err("bad event header size\n");
1436 if (size > cur_size) {
1437 void *new = realloc(buf, size);
1439 pr_err("failed to allocate memory to read event\n");
1447 p += sizeof(struct perf_event_header);
1449 if (size - sizeof(struct perf_event_header)) {
1450 err = readn(fd, p, size - sizeof(struct perf_event_header));
1453 pr_err("unexpected end of event stream\n");
1457 pr_err("failed to read event data\n");
1462 if ((skip = perf_session__process_event(session, event, head)) < 0) {
1463 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
1464 head, event->header.size, event->header.type);
1474 if (!session_done())
1477 /* do the final flush for ordered samples */
1478 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
1481 err = auxtrace__flush_events(session, tool);
1484 err = perf_session__flush_thread_stacks(session);
1487 perf_session__warn_about_errors(session);
1488 ordered_events__free(&session->ordered_events);
1489 auxtrace__free_events(session);
1493 static union perf_event *
1494 fetch_mmaped_event(struct perf_session *session,
1495 u64 head, size_t mmap_size, char *buf)
1497 union perf_event *event;
1500 * Ensure we have enough space remaining to read
1501 * the size of the event in the headers.
1503 if (head + sizeof(event->header) > mmap_size)
1506 event = (union perf_event *)(buf + head);
1508 if (session->header.needs_swap)
1509 perf_event_header__bswap(&event->header);
1511 if (head + event->header.size > mmap_size) {
1512 /* We're not fetching the event so swap back again */
1513 if (session->header.needs_swap)
1514 perf_event_header__bswap(&event->header);
1522 * On 64bit we can mmap the data file in one go. No need for tiny mmap
1523 * slices. On 32bit we use 32MB.
1525 #if BITS_PER_LONG == 64
1526 #define MMAP_SIZE ULLONG_MAX
1529 #define MMAP_SIZE (32 * 1024 * 1024ULL)
1530 #define NUM_MMAPS 128
1533 static int __perf_session__process_events(struct perf_session *session,
1534 u64 data_offset, u64 data_size,
1537 struct ordered_events *oe = &session->ordered_events;
1538 struct perf_tool *tool = session->tool;
1539 int fd = perf_data_file__fd(session->file);
1540 u64 head, page_offset, file_offset, file_pos, size;
1541 int err, mmap_prot, mmap_flags, map_idx = 0;
1543 char *buf, *mmaps[NUM_MMAPS];
1544 union perf_event *event;
1545 struct ui_progress prog;
1548 perf_tool__fill_defaults(tool);
1550 page_offset = page_size * (data_offset / page_size);
1551 file_offset = page_offset;
1552 head = data_offset - page_offset;
1554 if (data_size && (data_offset + data_size < file_size))
1555 file_size = data_offset + data_size;
1557 ui_progress__init(&prog, file_size, "Processing events...");
1559 mmap_size = MMAP_SIZE;
1560 if (mmap_size > file_size) {
1561 mmap_size = file_size;
1562 session->one_mmap = true;
1565 memset(mmaps, 0, sizeof(mmaps));
1567 mmap_prot = PROT_READ;
1568 mmap_flags = MAP_SHARED;
1570 if (session->header.needs_swap) {
1571 mmap_prot |= PROT_WRITE;
1572 mmap_flags = MAP_PRIVATE;
1575 buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd,
1577 if (buf == MAP_FAILED) {
1578 pr_err("failed to mmap file\n");
1582 mmaps[map_idx] = buf;
1583 map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1);
1584 file_pos = file_offset + head;
1585 if (session->one_mmap) {
1586 session->one_mmap_addr = buf;
1587 session->one_mmap_offset = file_offset;
1591 event = fetch_mmaped_event(session, head, mmap_size, buf);
1593 if (mmaps[map_idx]) {
1594 munmap(mmaps[map_idx], mmap_size);
1595 mmaps[map_idx] = NULL;
1598 page_offset = page_size * (head / page_size);
1599 file_offset += page_offset;
1600 head -= page_offset;
1604 size = event->header.size;
1606 if (size < sizeof(struct perf_event_header) ||
1607 (skip = perf_session__process_event(session, event, file_pos)) < 0) {
1608 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
1609 file_offset + head, event->header.size,
1610 event->header.type);
1621 ui_progress__update(&prog, size);
1626 if (file_pos < file_size)
1630 /* do the final flush for ordered samples */
1631 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
1634 err = auxtrace__flush_events(session, tool);
1637 err = perf_session__flush_thread_stacks(session);
1639 ui_progress__finish();
1640 perf_session__warn_about_errors(session);
1641 ordered_events__free(&session->ordered_events);
1642 auxtrace__free_events(session);
1643 session->one_mmap = false;
1647 int perf_session__process_events(struct perf_session *session)
1649 u64 size = perf_data_file__size(session->file);
1652 if (perf_session__register_idle_thread(session) == NULL)
1655 if (!perf_data_file__is_pipe(session->file))
1656 err = __perf_session__process_events(session,
1657 session->header.data_offset,
1658 session->header.data_size, size);
1660 err = __perf_session__process_pipe_events(session);
1665 bool perf_session__has_traces(struct perf_session *session, const char *msg)
1667 struct perf_evsel *evsel;
1669 evlist__for_each(session->evlist, evsel) {
1670 if (evsel->attr.type == PERF_TYPE_TRACEPOINT)
1674 pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
1678 int maps__set_kallsyms_ref_reloc_sym(struct map **maps,
1679 const char *symbol_name, u64 addr)
1683 struct ref_reloc_sym *ref;
1685 ref = zalloc(sizeof(struct ref_reloc_sym));
1689 ref->name = strdup(symbol_name);
1690 if (ref->name == NULL) {
1695 bracket = strchr(ref->name, ']');
1701 for (i = 0; i < MAP__NR_TYPES; ++i) {
1702 struct kmap *kmap = map__kmap(maps[i]);
1706 kmap->ref_reloc_sym = ref;
1712 size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
1714 return machines__fprintf_dsos(&session->machines, fp);
1717 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
1718 bool (skip)(struct dso *dso, int parm), int parm)
1720 return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
1723 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
1726 const char *msg = "";
1728 if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
1729 msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
1731 ret = fprintf(fp, "\nAggregated stats:%s\n", msg);
1733 ret += events_stats__fprintf(&session->evlist->stats, fp);
1737 size_t perf_session__fprintf(struct perf_session *session, FILE *fp)
1740 * FIXME: Here we have to actually print all the machines in this
1741 * session, not just the host...
1743 return machine__fprintf(&session->machines.host, fp);
1746 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
1749 struct perf_evsel *pos;
1751 evlist__for_each(session->evlist, pos) {
1752 if (pos->attr.type == type)
1758 void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
1759 struct addr_location *al,
1760 unsigned int print_opts, unsigned int stack_depth)
1762 struct callchain_cursor_node *node;
1763 int print_ip = print_opts & PRINT_IP_OPT_IP;
1764 int print_sym = print_opts & PRINT_IP_OPT_SYM;
1765 int print_dso = print_opts & PRINT_IP_OPT_DSO;
1766 int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
1767 int print_oneline = print_opts & PRINT_IP_OPT_ONELINE;
1768 int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE;
1769 char s = print_oneline ? ' ' : '\t';
1771 if (symbol_conf.use_callchain && sample->callchain) {
1772 struct addr_location node_al;
1774 if (thread__resolve_callchain(al->thread, evsel,
1776 PERF_MAX_STACK_DEPTH) != 0) {
1778 error("Failed to resolve callchain. Skipping\n");
1781 callchain_cursor_commit(&callchain_cursor);
1783 if (print_symoffset)
1786 while (stack_depth) {
1789 node = callchain_cursor_current(&callchain_cursor);
1793 if (node->sym && node->sym->ignore)
1797 printf("%c%16" PRIx64, s, node->ip);
1800 addr = node->map->map_ip(node->map, node->ip);
1804 if (print_symoffset) {
1805 node_al.addr = addr;
1806 node_al.map = node->map;
1807 symbol__fprintf_symname_offs(node->sym, &node_al, stdout);
1809 symbol__fprintf_symname(node->sym, stdout);
1814 map__fprintf_dsoname(node->map, stdout);
1819 map__fprintf_srcline(node->map, addr, "\n ",
1827 callchain_cursor_advance(&callchain_cursor);
1831 if (al->sym && al->sym->ignore)
1835 printf("%16" PRIx64, sample->ip);
1839 if (print_symoffset)
1840 symbol__fprintf_symname_offs(al->sym, al,
1843 symbol__fprintf_symname(al->sym, stdout);
1848 map__fprintf_dsoname(al->map, stdout);
1853 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
1857 int perf_session__cpu_bitmap(struct perf_session *session,
1858 const char *cpu_list, unsigned long *cpu_bitmap)
1861 struct cpu_map *map;
1863 for (i = 0; i < PERF_TYPE_MAX; ++i) {
1864 struct perf_evsel *evsel;
1866 evsel = perf_session__find_first_evtype(session, i);
1870 if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
1871 pr_err("File does not contain CPU events. "
1872 "Remove -c option to proceed.\n");
1877 map = cpu_map__new(cpu_list);
1879 pr_err("Invalid cpu_list\n");
1883 for (i = 0; i < map->nr; i++) {
1884 int cpu = map->map[i];
1886 if (cpu >= MAX_NR_CPUS) {
1887 pr_err("Requested CPU %d too large. "
1888 "Consider raising MAX_NR_CPUS\n", cpu);
1889 goto out_delete_map;
1892 set_bit(cpu, cpu_bitmap);
1902 void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
1908 if (session == NULL || fp == NULL)
1911 fd = perf_data_file__fd(session->file);
1913 ret = fstat(fd, &st);
1917 fprintf(fp, "# ========\n");
1918 fprintf(fp, "# captured on: %s", ctime(&st.st_ctime));
1919 perf_header__fprintf_info(session, fp, full);
1920 fprintf(fp, "# ========\n#\n");
1924 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
1925 const struct perf_evsel_str_handler *assocs,
1928 struct perf_evsel *evsel;
1932 for (i = 0; i < nr_assocs; i++) {
1934 * Adding a handler for an event not in the session,
1937 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name);
1942 if (evsel->handler != NULL)
1944 evsel->handler = assocs[i].handler;
1952 int perf_event__process_id_index(struct perf_tool *tool __maybe_unused,
1953 union perf_event *event,
1954 struct perf_session *session)
1956 struct perf_evlist *evlist = session->evlist;
1957 struct id_index_event *ie = &event->id_index;
1958 size_t i, nr, max_nr;
1960 max_nr = (ie->header.size - sizeof(struct id_index_event)) /
1961 sizeof(struct id_index_entry);
1967 fprintf(stdout, " nr: %zu\n", nr);
1969 for (i = 0; i < nr; i++) {
1970 struct id_index_entry *e = &ie->entries[i];
1971 struct perf_sample_id *sid;
1974 fprintf(stdout, " ... id: %"PRIu64, e->id);
1975 fprintf(stdout, " idx: %"PRIu64, e->idx);
1976 fprintf(stdout, " cpu: %"PRId64, e->cpu);
1977 fprintf(stdout, " tid: %"PRId64"\n", e->tid);
1980 sid = perf_evlist__id2sid(evlist, e->id);
1990 int perf_event__synthesize_id_index(struct perf_tool *tool,
1991 perf_event__handler_t process,
1992 struct perf_evlist *evlist,
1993 struct machine *machine)
1995 union perf_event *ev;
1996 struct perf_evsel *evsel;
1997 size_t nr = 0, i = 0, sz, max_nr, n;
2000 pr_debug2("Synthesizing id index\n");
2002 max_nr = (UINT16_MAX - sizeof(struct id_index_event)) /
2003 sizeof(struct id_index_entry);
2005 evlist__for_each(evlist, evsel)
2008 n = nr > max_nr ? max_nr : nr;
2009 sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry);
2014 ev->id_index.header.type = PERF_RECORD_ID_INDEX;
2015 ev->id_index.header.size = sz;
2016 ev->id_index.nr = n;
2018 evlist__for_each(evlist, evsel) {
2021 for (j = 0; j < evsel->ids; j++) {
2022 struct id_index_entry *e;
2023 struct perf_sample_id *sid;
2026 err = process(tool, ev, NULL, machine);
2033 e = &ev->id_index.entries[i++];
2035 e->id = evsel->id[j];
2037 sid = perf_evlist__id2sid(evlist, e->id);
2049 sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry);
2050 ev->id_index.header.size = sz;
2051 ev->id_index.nr = nr;
2053 err = process(tool, ev, NULL, machine);