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perf tests: Introduce iterator function for tests
[deliverable/linux.git] / tools / perf / util / session.c
CommitLineData
94c744b6 1#include <linux/kernel.h>
4e319027 2#include <traceevent/event-parse.h>
94c744b6 3
ba21594c 4#include <byteswap.h>
94c744b6
ACM		 5#include <unistd.h>
6#include <sys/types.h>
a41794cd 7#include <sys/mman.h>
94c744b6 8
e248de33
ACM		 9#include "evlist.h"
10#include "evsel.h"
94c744b6 11#include "session.h"
45694aa7 12#include "tool.h"
a328626b 13#include "sort.h"
94c744b6 14#include "util.h"
5d67be97 15#include "cpumap.h"
0f6a3015 16#include "perf_regs.h"
b0a45203 17#include "asm/bug.h"
c446870d 18#include "auxtrace.h"
a5499b37 19#include "thread-stack.h"
94c744b6 20
c446870d
AH		 21static int perf_session__deliver_event(struct perf_session *session,
22 union perf_event *event,
23 struct perf_sample *sample,
24 struct perf_tool *tool,
25 u64 file_offset);
d10eb1eb 26
316c7136 27static int perf_session__open(struct perf_session *session)
94c744b6 28{
316c7136 29 struct perf_data_file *file = session->file;
8dc58101 30
316c7136 31 if (perf_session__read_header(session) < 0) {
69996df4 32 pr_err("incompatible file format (rerun with -v to learn more)");
6a4d98d7 33 return -1;
94c744b6
ACM		 34 }
35
cc9784bd
JO		 36 if (perf_data_file__is_pipe(file))
37 return 0;
38
316c7136 39 if (!perf_evlist__valid_sample_type(session->evlist)) {
c2a70653 40 pr_err("non matching sample_type");
6a4d98d7 41 return -1;
c2a70653
ACM		 42 }
43
316c7136 44 if (!perf_evlist__valid_sample_id_all(session->evlist)) {
c2a70653 45 pr_err("non matching sample_id_all");
6a4d98d7 46 return -1;
c2a70653
ACM		 47 }
48
316c7136 49 if (!perf_evlist__valid_read_format(session->evlist)) {
9ede473c 50 pr_err("non matching read_format");
6a4d98d7 51 return -1;
9ede473c
JO		 52 }
53
94c744b6 54 return 0;
94c744b6
ACM		 55}
56
7b56cce2 57void perf_session__set_id_hdr_size(struct perf_session *session)
9c90a61c 58{
7b56cce2
ACM		 59 u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist);
60
7b56cce2 61 machines__set_id_hdr_size(&session->machines, id_hdr_size);
9c90a61c
ACM		 62}
63
316c7136 64int perf_session__create_kernel_maps(struct perf_session *session)
a1645ce1 65{
316c7136 66 int ret = machine__create_kernel_maps(&session->machines.host);
a1645ce1 67
a1645ce1 68 if (ret >= 0)
316c7136 69 ret = machines__create_guest_kernel_maps(&session->machines);
a1645ce1
ZY		 70 return ret;
71}
72
316c7136 73static void perf_session__destroy_kernel_maps(struct perf_session *session)
076c6e45 74{
316c7136 75 machines__destroy_kernel_maps(&session->machines);
076c6e45
ACM		 76}
77
cfe1c414
AH		 78static bool perf_session__has_comm_exec(struct perf_session *session)
79{
80 struct perf_evsel *evsel;
81
82 evlist__for_each(session->evlist, evsel) {
83 if (evsel->attr.comm_exec)
84 return true;
85 }
86
87 return false;
88}
89
90static void perf_session__set_comm_exec(struct perf_session *session)
91{
92 bool comm_exec = perf_session__has_comm_exec(session);
93
94 machines__set_comm_exec(&session->machines, comm_exec);
95}
96
d10eb1eb 97static int ordered_events__deliver_event(struct ordered_events *oe,
9870d780 98 struct ordered_event *event)
d10eb1eb 99{
9870d780
ACM		 100 struct perf_sample sample;
101 struct perf_session *session = container_of(oe, struct perf_session,
102 ordered_events);
103 int ret = perf_evlist__parse_sample(session->evlist, event->event, &sample);
104
105 if (ret) {
106 pr_err("Can't parse sample, err = %d\n", ret);
107 return ret;
108 }
109
c446870d
AH		 110 return perf_session__deliver_event(session, event->event, &sample,
111 session->tool, event->file_offset);
d10eb1eb
ACM		 112}
113
f5fc1412
JO		 114struct perf_session *perf_session__new(struct perf_data_file *file,
115 bool repipe, struct perf_tool *tool)
94c744b6 116{
316c7136 117 struct perf_session *session = zalloc(sizeof(*session));
efad1415 118
316c7136 119 if (!session)
94c744b6
ACM		 120 goto out;
121
316c7136 122 session->repipe = repipe;
9870d780 123 session->tool = tool;
99fa2984 124 INIT_LIST_HEAD(&session->auxtrace_index);
316c7136 125 machines__init(&session->machines);
9870d780 126 ordered_events__init(&session->ordered_events, ordered_events__deliver_event);
94c744b6 127
6a4d98d7
JO		 128 if (file) {
129 if (perf_data_file__open(file))
64abebf7 130 goto out_delete;
6a4d98d7 131
316c7136 132 session->file = file;
6a4d98d7
JO		 133
134 if (perf_data_file__is_read(file)) {
316c7136 135 if (perf_session__open(session) < 0)
6a4d98d7
JO		 136 goto out_close;
137
316c7136 138 perf_session__set_id_hdr_size(session);
cfe1c414 139 perf_session__set_comm_exec(session);
6a4d98d7
JO		 140 }
141 }
142
143 if (!file || perf_data_file__is_write(file)) {
64abebf7
ACM		 144 /*
145 * In O_RDONLY mode this will be performed when reading the
8115d60c 146 * kernel MMAP event, in perf_event__process_mmap().
64abebf7 147 */
316c7136 148 if (perf_session__create_kernel_maps(session) < 0)
a5c2a4c9 149 pr_warning("Cannot read kernel map\n");
64abebf7 150 }
d549c769 151
45694aa7 152 if (tool && tool->ordering_requires_timestamps &&
0a8cb85c 153 tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) {
21ef97f0 154 dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
0a8cb85c 155 tool->ordered_events = false;
d10eb1eb 156 }
21ef97f0 157
316c7136 158 return session;
6a4d98d7
JO		 159
160 out_close:
161 perf_data_file__close(file);
162 out_delete:
316c7136 163 perf_session__delete(session);
6a4d98d7 164 out:
4aa65636 165 return NULL;
94c744b6
ACM		 166}
167
b424eba2
ACM		 168static void perf_session__delete_threads(struct perf_session *session)
169{
876650e6 170 machine__delete_threads(&session->machines.host);
b424eba2
ACM		 171}
172
ce80d3be 173static void perf_session_env__exit(struct perf_env *env)
03cd2094 174{
74cf249d
ACM		 175 zfree(&env->hostname);
176 zfree(&env->os_release);
177 zfree(&env->version);
178 zfree(&env->arch);
179 zfree(&env->cpu_desc);
180 zfree(&env->cpuid);
181
182 zfree(&env->cmdline);
768dd3f3 183 zfree(&env->cmdline_argv);
74cf249d
ACM		 184 zfree(&env->sibling_cores);
185 zfree(&env->sibling_threads);
186 zfree(&env->numa_nodes);
187 zfree(&env->pmu_mappings);
2bb00d2f 188 zfree(&env->cpu);
03cd2094
NK		 189}
190
316c7136 191void perf_session__delete(struct perf_session *session)
94c744b6 192{
c446870d 193 auxtrace__free(session);
99fa2984 194 auxtrace_index__free(&session->auxtrace_index);
316c7136 195 perf_session__destroy_kernel_maps(session);
316c7136 196 perf_session__delete_threads(session);
4c7de49a 197 perf_session_env__exit(&session->header.env);
316c7136
ACM		 198 machines__exit(&session->machines);
199 if (session->file)
200 perf_data_file__close(session->file);
201 free(session);
94c744b6 202}
a328626b 203
47c3d109
AH		 204static int process_event_synth_tracing_data_stub(struct perf_tool *tool
205 __maybe_unused,
206 union perf_event *event
1d037ca1
IT		 207 __maybe_unused,
208 struct perf_session *session
209 __maybe_unused)
d20deb64
ACM		 210{
211 dump_printf(": unhandled!\n");
212 return 0;
213}
214
47c3d109
AH		 215static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused,
216 union perf_event *event __maybe_unused,
1d037ca1
IT		 217 struct perf_evlist **pevlist
218 __maybe_unused)
10d0f086
ACM		 219{
220 dump_printf(": unhandled!\n");
221 return 0;
222}
223
1d037ca1
IT		 224static int process_event_sample_stub(struct perf_tool *tool __maybe_unused,
225 union perf_event *event __maybe_unused,
226 struct perf_sample *sample __maybe_unused,
227 struct perf_evsel *evsel __maybe_unused,
228 struct machine *machine __maybe_unused)
9e69c210
ACM		 229{
230 dump_printf(": unhandled!\n");
231 return 0;
232}
233
1d037ca1
IT		 234static int process_event_stub(struct perf_tool *tool __maybe_unused,
235 union perf_event *event __maybe_unused,
236 struct perf_sample *sample __maybe_unused,
237 struct machine *machine __maybe_unused)
06aae590
ACM		 238{
239 dump_printf(": unhandled!\n");
240 return 0;
241}
242
d704ebda
ACM		 243static int process_build_id_stub(struct perf_tool *tool __maybe_unused,
244 union perf_event *event __maybe_unused,
245 struct perf_session *session __maybe_unused)
246{
247 dump_printf(": unhandled!\n");
248 return 0;
249}
250
1d037ca1
IT		 251static int process_finished_round_stub(struct perf_tool *tool __maybe_unused,
252 union perf_event *event __maybe_unused,
d704ebda 253 struct ordered_events *oe __maybe_unused)
743eb868
ACM		 254{
255 dump_printf(": unhandled!\n");
256 return 0;
257}
258
45694aa7 259static int process_finished_round(struct perf_tool *tool,
d20deb64 260 union perf_event *event,
d704ebda 261 struct ordered_events *oe);
d6b17beb 262
3c659eed
AH		 263static int process_id_index_stub(struct perf_tool *tool __maybe_unused,
264 union perf_event *event __maybe_unused,
265 struct perf_session *perf_session
266 __maybe_unused)
267{
268 dump_printf(": unhandled!\n");
269 return 0;
270}
271
a16ac023
AH		 272static int process_event_auxtrace_info_stub(struct perf_tool *tool __maybe_unused,
273 union perf_event *event __maybe_unused,
274 struct perf_session *session __maybe_unused)
275{
276 dump_printf(": unhandled!\n");
277 return 0;
278}
279
280static int skipn(int fd, off_t n)
281{
282 char buf[4096];
283 ssize_t ret;
284
285 while (n > 0) {
286 ret = read(fd, buf, min(n, (off_t)sizeof(buf)));
287 if (ret <= 0)
288 return ret;
289 n -= ret;
290 }
291
292 return 0;
293}
294
295static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused,
296 union perf_event *event,
297 struct perf_session *session
298 __maybe_unused)
299{
300 dump_printf(": unhandled!\n");
301 if (perf_data_file__is_pipe(session->file))
302 skipn(perf_data_file__fd(session->file), event->auxtrace.size);
303 return event->auxtrace.size;
304}
305
e9bf54d2
AH		 306static
307int process_event_auxtrace_error_stub(struct perf_tool *tool __maybe_unused,
308 union perf_event *event __maybe_unused,
309 struct perf_session *session __maybe_unused)
310{
311 dump_printf(": unhandled!\n");
312 return 0;
313}
314
9c501402 315void perf_tool__fill_defaults(struct perf_tool *tool)
06aae590 316{
45694aa7
ACM		 317 if (tool->sample == NULL)
318 tool->sample = process_event_sample_stub;
319 if (tool->mmap == NULL)
320 tool->mmap = process_event_stub;
6adb0b0a
DA		 321 if (tool->mmap2 == NULL)
322 tool->mmap2 = process_event_stub;
45694aa7
ACM		 323 if (tool->comm == NULL)
324 tool->comm = process_event_stub;
325 if (tool->fork == NULL)
326 tool->fork = process_event_stub;
327 if (tool->exit == NULL)
328 tool->exit = process_event_stub;
329 if (tool->lost == NULL)
330 tool->lost = perf_event__process_lost;
c4937a91
KL		 331 if (tool->lost_samples == NULL)
332 tool->lost_samples = perf_event__process_lost_samples;
4a96f7a0
AH		 333 if (tool->aux == NULL)
334 tool->aux = perf_event__process_aux;
0ad21f68
AH		 335 if (tool->itrace_start == NULL)
336 tool->itrace_start = perf_event__process_itrace_start;
0286039f
AH		 337 if (tool->context_switch == NULL)
338 tool->context_switch = perf_event__process_switch;
45694aa7
ACM		 339 if (tool->read == NULL)
340 tool->read = process_event_sample_stub;
341 if (tool->throttle == NULL)
342 tool->throttle = process_event_stub;
343 if (tool->unthrottle == NULL)
344 tool->unthrottle = process_event_stub;
345 if (tool->attr == NULL)
346 tool->attr = process_event_synth_attr_stub;
45694aa7
ACM		 347 if (tool->tracing_data == NULL)
348 tool->tracing_data = process_event_synth_tracing_data_stub;
349 if (tool->build_id == NULL)
d704ebda 350 tool->build_id = process_build_id_stub;
45694aa7 351 if (tool->finished_round == NULL) {
0a8cb85c 352 if (tool->ordered_events)
45694aa7 353 tool->finished_round = process_finished_round;
d6b17beb 354 else
45694aa7 355 tool->finished_round = process_finished_round_stub;
d6b17beb 356 }
3c659eed
AH		 357 if (tool->id_index == NULL)
358 tool->id_index = process_id_index_stub;
a16ac023
AH		 359 if (tool->auxtrace_info == NULL)
360 tool->auxtrace_info = process_event_auxtrace_info_stub;
361 if (tool->auxtrace == NULL)
362 tool->auxtrace = process_event_auxtrace_stub;
e9bf54d2
AH		 363 if (tool->auxtrace_error == NULL)
364 tool->auxtrace_error = process_event_auxtrace_error_stub;
06aae590 365}
48000a1a 366
268fb20f
JO		 367static void swap_sample_id_all(union perf_event *event, void *data)
368{
369 void *end = (void *) event + event->header.size;
370 int size = end - data;
371
372 BUG_ON(size % sizeof(u64));
373 mem_bswap_64(data, size);
374}
375
376static void perf_event__all64_swap(union perf_event *event,
1d037ca1 377 bool sample_id_all __maybe_unused)
ba21594c 378{
8115d60c
ACM		 379 struct perf_event_header *hdr = &event->header;
380 mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr));
ba21594c
ACM		 381}
382
268fb20f 383static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
ba21594c 384{
8115d60c
ACM		 385 event->comm.pid = bswap_32(event->comm.pid);
386 event->comm.tid = bswap_32(event->comm.tid);
268fb20f
JO		 387
388 if (sample_id_all) {
389 void *data = &event->comm.comm;
390
9ac3e487 391 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 392 swap_sample_id_all(event, data);
393 }
ba21594c
ACM		 394}
395
268fb20f
JO		 396static void perf_event__mmap_swap(union perf_event *event,
397 bool sample_id_all)
ba21594c 398{
8115d60c
ACM		 399 event->mmap.pid = bswap_32(event->mmap.pid);
400 event->mmap.tid = bswap_32(event->mmap.tid);
401 event->mmap.start = bswap_64(event->mmap.start);
402 event->mmap.len = bswap_64(event->mmap.len);
403 event->mmap.pgoff = bswap_64(event->mmap.pgoff);
268fb20f
JO		 404
405 if (sample_id_all) {
406 void *data = &event->mmap.filename;
407
9ac3e487 408 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 409 swap_sample_id_all(event, data);
410 }
ba21594c
ACM		 411}
412
5c5e854b
SE		 413static void perf_event__mmap2_swap(union perf_event *event,
414 bool sample_id_all)
415{
416 event->mmap2.pid = bswap_32(event->mmap2.pid);
417 event->mmap2.tid = bswap_32(event->mmap2.tid);
418 event->mmap2.start = bswap_64(event->mmap2.start);
419 event->mmap2.len = bswap_64(event->mmap2.len);
420 event->mmap2.pgoff = bswap_64(event->mmap2.pgoff);
421 event->mmap2.maj = bswap_32(event->mmap2.maj);
422 event->mmap2.min = bswap_32(event->mmap2.min);
423 event->mmap2.ino = bswap_64(event->mmap2.ino);
424
425 if (sample_id_all) {
426 void *data = &event->mmap2.filename;
427
428 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
429 swap_sample_id_all(event, data);
430 }
431}
268fb20f 432static void perf_event__task_swap(union perf_event *event, bool sample_id_all)
ba21594c 433{
8115d60c
ACM		 434 event->fork.pid = bswap_32(event->fork.pid);
435 event->fork.tid = bswap_32(event->fork.tid);
436 event->fork.ppid = bswap_32(event->fork.ppid);
437 event->fork.ptid = bswap_32(event->fork.ptid);
438 event->fork.time = bswap_64(event->fork.time);
268fb20f
JO		 439
440 if (sample_id_all)
441 swap_sample_id_all(event, &event->fork + 1);
ba21594c
ACM		 442}
443
268fb20f 444static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
ba21594c 445{
8115d60c
ACM		 446 event->read.pid = bswap_32(event->read.pid);
447 event->read.tid = bswap_32(event->read.tid);
448 event->read.value = bswap_64(event->read.value);
449 event->read.time_enabled = bswap_64(event->read.time_enabled);
450 event->read.time_running = bswap_64(event->read.time_running);
451 event->read.id = bswap_64(event->read.id);
268fb20f
JO		 452
453 if (sample_id_all)
454 swap_sample_id_all(event, &event->read + 1);
ba21594c
ACM		 455}
456
4a96f7a0
AH		 457static void perf_event__aux_swap(union perf_event *event, bool sample_id_all)
458{
459 event->aux.aux_offset = bswap_64(event->aux.aux_offset);
460 event->aux.aux_size = bswap_64(event->aux.aux_size);
461 event->aux.flags = bswap_64(event->aux.flags);
462
463 if (sample_id_all)
464 swap_sample_id_all(event, &event->aux + 1);
465}
466
0ad21f68
AH		 467static void perf_event__itrace_start_swap(union perf_event *event,
468 bool sample_id_all)
469{
470 event->itrace_start.pid = bswap_32(event->itrace_start.pid);
471 event->itrace_start.tid = bswap_32(event->itrace_start.tid);
472
473 if (sample_id_all)
474 swap_sample_id_all(event, &event->itrace_start + 1);
475}
476
0286039f
AH		 477static void perf_event__switch_swap(union perf_event *event, bool sample_id_all)
478{
479 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
480 event->context_switch.next_prev_pid =
481 bswap_32(event->context_switch.next_prev_pid);
482 event->context_switch.next_prev_tid =
483 bswap_32(event->context_switch.next_prev_tid);
484 }
485
486 if (sample_id_all)
487 swap_sample_id_all(event, &event->context_switch + 1);
488}
489
dd96c46b
JO		 490static void perf_event__throttle_swap(union perf_event *event,
491 bool sample_id_all)
492{
493 event->throttle.time = bswap_64(event->throttle.time);
494 event->throttle.id = bswap_64(event->throttle.id);
495 event->throttle.stream_id = bswap_64(event->throttle.stream_id);
496
497 if (sample_id_all)
498 swap_sample_id_all(event, &event->throttle + 1);
499}
500
e108c66e
JO		 501static u8 revbyte(u8 b)
502{
503 int rev = (b >> 4) | ((b & 0xf) << 4);
504 rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2);
505 rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1);
506 return (u8) rev;
507}
508
509/*
510 * XXX this is hack in attempt to carry flags bitfield
511 * throught endian village. ABI says:
512 *
513 * Bit-fields are allocated from right to left (least to most significant)
514 * on little-endian implementations and from left to right (most to least
515 * significant) on big-endian implementations.
516 *
517 * The above seems to be byte specific, so we need to reverse each
518 * byte of the bitfield. 'Internet' also says this might be implementation
519 * specific and we probably need proper fix and carry perf_event_attr
520 * bitfield flags in separate data file FEAT_ section. Thought this seems
521 * to work for now.
522 */
523static void swap_bitfield(u8 *p, unsigned len)
524{
525 unsigned i;
526
527 for (i = 0; i < len; i++) {
528 *p = revbyte(*p);
529 p++;
530 }
531}
532
eda3913b
DA		 533/* exported for swapping attributes in file header */
534void perf_event__attr_swap(struct perf_event_attr *attr)
535{
536 attr->type = bswap_32(attr->type);
537 attr->size = bswap_32(attr->size);
b30b6172
WN		 538
539#define bswap_safe(f, n) \
540 (attr->size > (offsetof(struct perf_event_attr, f) + \
541 sizeof(attr->f) * (n)))
542#define bswap_field(f, sz) \
543do { \
544 if (bswap_safe(f, 0)) \
545 attr->f = bswap_##sz(attr->f); \
546} while(0)
547#define bswap_field_32(f) bswap_field(f, 32)
548#define bswap_field_64(f) bswap_field(f, 64)
549
550 bswap_field_64(config);
551 bswap_field_64(sample_period);
552 bswap_field_64(sample_type);
553 bswap_field_64(read_format);
554 bswap_field_32(wakeup_events);
555 bswap_field_32(bp_type);
556 bswap_field_64(bp_addr);
557 bswap_field_64(bp_len);
558 bswap_field_64(branch_sample_type);
559 bswap_field_64(sample_regs_user);
560 bswap_field_32(sample_stack_user);
561 bswap_field_32(aux_watermark);
562
563 /*
564 * After read_format are bitfields. Check read_format because
565 * we are unable to use offsetof on bitfield.
566 */
567 if (bswap_safe(read_format, 1))
568 swap_bitfield((u8 *) (&attr->read_format + 1),
569 sizeof(u64));
570#undef bswap_field_64
571#undef bswap_field_32
572#undef bswap_field
573#undef bswap_safe
eda3913b
DA		 574}
575
268fb20f 576static void perf_event__hdr_attr_swap(union perf_event *event,
1d037ca1 577 bool sample_id_all __maybe_unused)
2c46dbb5
TZ		 578{
579 size_t size;
580
eda3913b 581 perf_event__attr_swap(&event->attr.attr);
2c46dbb5 582
8115d60c
ACM		 583 size = event->header.size;
584 size -= (void *)&event->attr.id - (void *)event;
585 mem_bswap_64(event->attr.id, size);
2c46dbb5
TZ		 586}
587
268fb20f 588static void perf_event__event_type_swap(union perf_event *event,
1d037ca1 589 bool sample_id_all __maybe_unused)
cd19a035 590{
8115d60c
ACM		 591 event->event_type.event_type.event_id =
592 bswap_64(event->event_type.event_type.event_id);
cd19a035
TZ		 593}
594
268fb20f 595static void perf_event__tracing_data_swap(union perf_event *event,
1d037ca1 596 bool sample_id_all __maybe_unused)
9215545e 597{
8115d60c 598 event->tracing_data.size = bswap_32(event->tracing_data.size);
9215545e
TZ		 599}
600
a16ac023
AH		 601static void perf_event__auxtrace_info_swap(union perf_event *event,
602 bool sample_id_all __maybe_unused)
603{
604 size_t size;
605
606 event->auxtrace_info.type = bswap_32(event->auxtrace_info.type);
607
608 size = event->header.size;
609 size -= (void *)&event->auxtrace_info.priv - (void *)event;
610 mem_bswap_64(event->auxtrace_info.priv, size);
611}
612
613static void perf_event__auxtrace_swap(union perf_event *event,
614 bool sample_id_all __maybe_unused)
615{
616 event->auxtrace.size = bswap_64(event->auxtrace.size);
617 event->auxtrace.offset = bswap_64(event->auxtrace.offset);
618 event->auxtrace.reference = bswap_64(event->auxtrace.reference);
619 event->auxtrace.idx = bswap_32(event->auxtrace.idx);
620 event->auxtrace.tid = bswap_32(event->auxtrace.tid);
621 event->auxtrace.cpu = bswap_32(event->auxtrace.cpu);
622}
623
e9bf54d2
AH		 624static void perf_event__auxtrace_error_swap(union perf_event *event,
625 bool sample_id_all __maybe_unused)
626{
627 event->auxtrace_error.type = bswap_32(event->auxtrace_error.type);
628 event->auxtrace_error.code = bswap_32(event->auxtrace_error.code);
629 event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu);
630 event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid);
631 event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid);
632 event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip);
633}
634
268fb20f
JO		 635typedef void (*perf_event__swap_op)(union perf_event *event,
636 bool sample_id_all);
ba21594c 637
8115d60c
ACM		 638static perf_event__swap_op perf_event__swap_ops[] = {
639 [PERF_RECORD_MMAP] = perf_event__mmap_swap,
5c5e854b 640 [PERF_RECORD_MMAP2] = perf_event__mmap2_swap,
8115d60c
ACM		 641 [PERF_RECORD_COMM] = perf_event__comm_swap,
642 [PERF_RECORD_FORK] = perf_event__task_swap,
643 [PERF_RECORD_EXIT] = perf_event__task_swap,
644 [PERF_RECORD_LOST] = perf_event__all64_swap,
645 [PERF_RECORD_READ] = perf_event__read_swap,
dd96c46b
JO		 646 [PERF_RECORD_THROTTLE] = perf_event__throttle_swap,
647 [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap,
8115d60c 648 [PERF_RECORD_SAMPLE] = perf_event__all64_swap,
4a96f7a0 649 [PERF_RECORD_AUX] = perf_event__aux_swap,
0ad21f68 650 [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
c4937a91 651 [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
0286039f
AH		 652 [PERF_RECORD_SWITCH] = perf_event__switch_swap,
653 [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap,
eda3913b 654 [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
8115d60c
ACM		 655 [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
656 [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
657 [PERF_RECORD_HEADER_BUILD_ID] = NULL,
3c659eed 658 [PERF_RECORD_ID_INDEX] = perf_event__all64_swap,
a16ac023
AH		 659 [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap,
660 [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap,
e9bf54d2 661 [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap,
8115d60c 662 [PERF_RECORD_HEADER_MAX] = NULL,
ba21594c
ACM		 663};
664
d6b17beb
FW		 665/*
666 * When perf record finishes a pass on every buffers, it records this pseudo
667 * event.
668 * We record the max timestamp t found in the pass n.
669 * Assuming these timestamps are monotonic across cpus, we know that if
670 * a buffer still has events with timestamps below t, they will be all
671 * available and then read in the pass n + 1.
672 * Hence when we start to read the pass n + 2, we can safely flush every
673 * events with timestamps below t.
674 *
675 * ============ PASS n =================
676 * CPU 0 | CPU 1
677 * |
678 * cnt1 timestamps | cnt2 timestamps
679 * 1 | 2
680 * 2 | 3
681 * - | 4 <--- max recorded
682 *
683 * ============ PASS n + 1 ==============
684 * CPU 0 | CPU 1
685 * |
686 * cnt1 timestamps | cnt2 timestamps
687 * 3 | 5
688 * 4 | 6
689 * 5 | 7 <---- max recorded
690 *
691 * Flush every events below timestamp 4
692 *
693 * ============ PASS n + 2 ==============
694 * CPU 0 | CPU 1
695 * |
696 * cnt1 timestamps | cnt2 timestamps
697 * 6 | 8
698 * 7 | 9
699 * - | 10
700 *
701 * Flush every events below timestamp 7
702 * etc...
703 */
b7b61cbe 704static int process_finished_round(struct perf_tool *tool __maybe_unused,
1d037ca1 705 union perf_event *event __maybe_unused,
d704ebda 706 struct ordered_events *oe)
d6b17beb 707{
5531e162
AH		 708 if (dump_trace)
709 fprintf(stdout, "\n");
b7b61cbe 710 return ordered_events__flush(oe, OE_FLUSH__ROUND);
d6b17beb
FW		 711}
712
b7b61cbe
ACM		 713int perf_session__queue_event(struct perf_session *s, union perf_event *event,
714 struct perf_sample *sample, u64 file_offset)
c61e52ee 715{
4a6b362f 716 return ordered_events__queue(&s->ordered_events, event, sample, file_offset);
640c03ce 717}
c61e52ee 718
384b6055 719static void callchain__lbr_callstack_printf(struct perf_sample *sample)
640c03ce 720{
384b6055
KL		 721 struct ip_callchain *callchain = sample->callchain;
722 struct branch_stack *lbr_stack = sample->branch_stack;
723 u64 kernel_callchain_nr = callchain->nr;
640c03ce 724 unsigned int i;
c61e52ee 725
384b6055
KL		 726 for (i = 0; i < kernel_callchain_nr; i++) {
727 if (callchain->ips[i] == PERF_CONTEXT_USER)
728 break;
729 }
730
731 if ((i != kernel_callchain_nr) && lbr_stack->nr) {
732 u64 total_nr;
733 /*
734 * LBR callstack can only get user call chain,
735 * i is kernel call chain number,
736 * 1 is PERF_CONTEXT_USER.
737 *
738 * The user call chain is stored in LBR registers.
739 * LBR are pair registers. The caller is stored
740 * in "from" register, while the callee is stored
741 * in "to" register.
742 * For example, there is a call stack
743 * "A"->"B"->"C"->"D".
744 * The LBR registers will recorde like
745 * "C"->"D", "B"->"C", "A"->"B".
746 * So only the first "to" register and all "from"
747 * registers are needed to construct the whole stack.
748 */
749 total_nr = i + 1 + lbr_stack->nr + 1;
750 kernel_callchain_nr = i + 1;
751
752 printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr);
753
754 for (i = 0; i < kernel_callchain_nr; i++)
755 printf("..... %2d: %016" PRIx64 "\n",
756 i, callchain->ips[i]);
757
758 printf("..... %2d: %016" PRIx64 "\n",
759 (int)(kernel_callchain_nr), lbr_stack->entries[0].to);
760 for (i = 0; i < lbr_stack->nr; i++)
761 printf("..... %2d: %016" PRIx64 "\n",
762 (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from);
763 }
764}
765
766static void callchain__printf(struct perf_evsel *evsel,
767 struct perf_sample *sample)
768{
769 unsigned int i;
770 struct ip_callchain *callchain = sample->callchain;
771
772 if (has_branch_callstack(evsel))
773 callchain__lbr_callstack_printf(sample);
774
775 printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr);
640c03ce 776
384b6055 777 for (i = 0; i < callchain->nr; i++)
9486aa38 778 printf("..... %2d: %016" PRIx64 "\n",
384b6055 779 i, callchain->ips[i]);
c61e52ee
FW		 780}
781
b5387528
RAV		 782static void branch_stack__printf(struct perf_sample *sample)
783{
784 uint64_t i;
785
786 printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
787
0e332f03
AK		 788 for (i = 0; i < sample->branch_stack->nr; i++) {
789 struct branch_entry *e = &sample->branch_stack->entries[i];
790
791 printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n",
792 i, e->from, e->to,
793 e->flags.cycles,
794 e->flags.mispred ? "M" : " ",
795 e->flags.predicted ? "P" : " ",
796 e->flags.abort ? "A" : " ",
797 e->flags.in_tx ? "T" : " ",
798 (unsigned)e->flags.reserved);
799 }
b5387528
RAV		 800}
801
0f6a3015
JO		 802static void regs_dump__printf(u64 mask, u64 *regs)
803{
804 unsigned rid, i = 0;
805
806 for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) {
807 u64 val = regs[i++];
808
809 printf(".... %-5s 0x%" PRIx64 "\n",
810 perf_reg_name(rid), val);
811 }
812}
813
6a21c0b5
SE		 814static const char *regs_abi[] = {
815 [PERF_SAMPLE_REGS_ABI_NONE] = "none",
816 [PERF_SAMPLE_REGS_ABI_32] = "32-bit",
817 [PERF_SAMPLE_REGS_ABI_64] = "64-bit",
818};
819
820static inline const char *regs_dump_abi(struct regs_dump *d)
821{
822 if (d->abi > PERF_SAMPLE_REGS_ABI_64)
823 return "unknown";
824
825 return regs_abi[d->abi];
826}
827
828static void regs__printf(const char *type, struct regs_dump *regs)
829{
830 u64 mask = regs->mask;
831
832 printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n",
833 type,
834 mask,
835 regs_dump_abi(regs));
836
837 regs_dump__printf(mask, regs->regs);
838}
839
352ea45a 840static void regs_user__printf(struct perf_sample *sample)
0f6a3015
JO		 841{
842 struct regs_dump *user_regs = &sample->user_regs;
843
6a21c0b5
SE		 844 if (user_regs->regs)
845 regs__printf("user", user_regs);
846}
847
848static void regs_intr__printf(struct perf_sample *sample)
849{
850 struct regs_dump *intr_regs = &sample->intr_regs;
851
852 if (intr_regs->regs)
853 regs__printf("intr", intr_regs);
0f6a3015
JO		 854}
855
856static void stack_user__printf(struct stack_dump *dump)
857{
858 printf("... ustack: size %" PRIu64 ", offset 0x%x\n",
859 dump->size, dump->offset);
860}
861
9fa8727a 862static void perf_evlist__print_tstamp(struct perf_evlist *evlist,
8115d60c 863 union perf_event *event,
8d50e5b4 864 struct perf_sample *sample)
9c90a61c 865{
9fa8727a 866 u64 sample_type = __perf_evlist__combined_sample_type(evlist);
7f3be652 867
9c90a61c 868 if (event->header.type != PERF_RECORD_SAMPLE &&
9fa8727a 869 !perf_evlist__sample_id_all(evlist)) {
9c90a61c
ACM		 870 fputs("-1 -1 ", stdout);
871 return;
872 }
873
7f3be652 874 if ((sample_type & PERF_SAMPLE_CPU))
9c90a61c
ACM		 875 printf("%u ", sample->cpu);
876
7f3be652 877 if (sample_type & PERF_SAMPLE_TIME)
9486aa38 878 printf("%" PRIu64 " ", sample->time);
9c90a61c
ACM		 879}
880
9ede473c
JO		 881static void sample_read__printf(struct perf_sample *sample, u64 read_format)
882{
883 printf("... sample_read:\n");
884
885 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
886 printf("...... time enabled %016" PRIx64 "\n",
887 sample->read.time_enabled);
888
889 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
890 printf("...... time running %016" PRIx64 "\n",
891 sample->read.time_running);
892
893 if (read_format & PERF_FORMAT_GROUP) {
894 u64 i;
895
896 printf(".... group nr %" PRIu64 "\n", sample->read.group.nr);
897
898 for (i = 0; i < sample->read.group.nr; i++) {
899 struct sample_read_value *value;
900
901 value = &sample->read.group.values[i];
902 printf("..... id %016" PRIx64
903 ", value %016" PRIx64 "\n",
904 value->id, value->value);
905 }
906 } else
907 printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n",
908 sample->read.one.id, sample->read.one.value);
909}
910
9fa8727a 911static void dump_event(struct perf_evlist *evlist, union perf_event *event,
8d50e5b4 912 u64 file_offset, struct perf_sample *sample)
9aefcab0
TG		 913{
914 if (!dump_trace)
915 return;
916
9486aa38
ACM		 917 printf("\n%#" PRIx64 " [%#x]: event: %d\n",
918 file_offset, event->header.size, event->header.type);
9aefcab0
TG		 919
920 trace_event(event);
921
922 if (sample)
9fa8727a 923 perf_evlist__print_tstamp(evlist, event, sample);
9aefcab0 924
9486aa38 925 printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset,
8115d60c 926 event->header.size, perf_event__name(event->header.type));
9aefcab0
TG		 927}
928
0f6a3015 929static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
8d50e5b4 930 struct perf_sample *sample)
9aefcab0 931{
7f3be652
ACM		 932 u64 sample_type;
933
ddbc24b7
ACM		 934 if (!dump_trace)
935 return;
936
0ea590ae 937 printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
9486aa38 938 event->header.misc, sample->pid, sample->tid, sample->ip,
7cec0922 939 sample->period, sample->addr);
9aefcab0 940
0f6a3015 941 sample_type = evsel->attr.sample_type;
7f3be652
ACM		 942
943 if (sample_type & PERF_SAMPLE_CALLCHAIN)
384b6055 944 callchain__printf(evsel, sample);
b5387528 945
384b6055 946 if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel))
b5387528 947 branch_stack__printf(sample);
0f6a3015
JO		 948
949 if (sample_type & PERF_SAMPLE_REGS_USER)
352ea45a 950 regs_user__printf(sample);
0f6a3015 951
6a21c0b5
SE		 952 if (sample_type & PERF_SAMPLE_REGS_INTR)
953 regs_intr__printf(sample);
954
0f6a3015
JO		 955 if (sample_type & PERF_SAMPLE_STACK_USER)
956 stack_user__printf(&sample->user_stack);
05484298
AK		 957
958 if (sample_type & PERF_SAMPLE_WEIGHT)
959 printf("... weight: %" PRIu64 "\n", sample->weight);
98a3b32c
SE		 960
961 if (sample_type & PERF_SAMPLE_DATA_SRC)
962 printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
9ede473c 963
475eeab9
AK		 964 if (sample_type & PERF_SAMPLE_TRANSACTION)
965 printf("... transaction: %" PRIx64 "\n", sample->transaction);
966
9ede473c
JO		 967 if (sample_type & PERF_SAMPLE_READ)
968 sample_read__printf(sample, evsel->attr.read_format);
9aefcab0
TG		 969}
970
54245fdc 971static struct machine *machines__find_for_cpumode(struct machines *machines,
ef89325f
AH		 972 union perf_event *event,
973 struct perf_sample *sample)
743eb868
ACM		 974{
975 const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
ad85ace0 976 struct machine *machine;
743eb868 977
7c0f4a41
DA		 978 if (perf_guest &&
979 ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
980 (cpumode == PERF_RECORD_MISC_GUEST_USER))) {
7fb0a5ee
ND		 981 u32 pid;
982
5c5e854b
SE		 983 if (event->header.type == PERF_RECORD_MMAP
984 || event->header.type == PERF_RECORD_MMAP2)
7fb0a5ee
ND		 985 pid = event->mmap.pid;
986 else
ef89325f 987 pid = sample->pid;
7fb0a5ee 988
54245fdc 989 machine = machines__find(machines, pid);
ad85ace0 990 if (!machine)
54245fdc 991 machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID);
ad85ace0 992 return machine;
7fb0a5ee 993 }
743eb868 994
54245fdc 995 return &machines->host;
743eb868
ACM		 996}
997
313e53b0 998static int deliver_sample_value(struct perf_evlist *evlist,
e4caec0d
JO		 999 struct perf_tool *tool,
1000 union perf_event *event,
1001 struct perf_sample *sample,
1002 struct sample_read_value *v,
1003 struct machine *machine)
1004{
313e53b0 1005 struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id);
e4caec0d 1006
e4caec0d
JO		 1007 if (sid) {
1008 sample->id = v->id;
1009 sample->period = v->value - sid->period;
1010 sid->period = v->value;
1011 }
1012
1013 if (!sid || sid->evsel == NULL) {
313e53b0 1014 ++evlist->stats.nr_unknown_id;
e4caec0d
JO		 1015 return 0;
1016 }
1017
1018 return tool->sample(tool, event, sample, sid->evsel, machine);
1019}
1020
313e53b0 1021static int deliver_sample_group(struct perf_evlist *evlist,
e4caec0d
JO		 1022 struct perf_tool *tool,
1023 union perf_event *event,
1024 struct perf_sample *sample,
1025 struct machine *machine)
1026{
1027 int ret = -EINVAL;
1028 u64 i;
1029
1030 for (i = 0; i < sample->read.group.nr; i++) {
313e53b0 1031 ret = deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1032 &sample->read.group.values[i],
1033 machine);
1034 if (ret)
1035 break;
1036 }
1037
1038 return ret;
1039}
1040
1041static int
313e53b0 1042 perf_evlist__deliver_sample(struct perf_evlist *evlist,
e4caec0d
JO		 1043 struct perf_tool *tool,
1044 union perf_event *event,
1045 struct perf_sample *sample,
1046 struct perf_evsel *evsel,
1047 struct machine *machine)
1048{
1049 /* We know evsel != NULL. */
1050 u64 sample_type = evsel->attr.sample_type;
1051 u64 read_format = evsel->attr.read_format;
1052
1053 /* Standard sample delievery. */
1054 if (!(sample_type & PERF_SAMPLE_READ))
1055 return tool->sample(tool, event, sample, evsel, machine);
1056
1057 /* For PERF_SAMPLE_READ we have either single or group mode. */
1058 if (read_format & PERF_FORMAT_GROUP)
313e53b0 1059 return deliver_sample_group(evlist, tool, event, sample,
e4caec0d
JO		 1060 machine);
1061 else
313e53b0 1062 return deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1063 &sample->read.one, machine);
1064}
1065
d10eb1eb
ACM		 1066static int machines__deliver_event(struct machines *machines,
1067 struct perf_evlist *evlist,
1068 union perf_event *event,
1069 struct perf_sample *sample,
1070 struct perf_tool *tool, u64 file_offset)
cbf41645 1071{
9e69c210 1072 struct perf_evsel *evsel;
743eb868 1073 struct machine *machine;
9e69c210 1074
9fa8727a 1075 dump_event(evlist, event, file_offset, sample);
532e7269 1076
313e53b0 1077 evsel = perf_evlist__id2evsel(evlist, sample->id);
7b27509f 1078
fa713a4e 1079 machine = machines__find_for_cpumode(machines, event, sample);
743eb868 1080
cbf41645
TG		 1081 switch (event->header.type) {
1082 case PERF_RECORD_SAMPLE:
9e69c210 1083 if (evsel == NULL) {
313e53b0 1084 ++evlist->stats.nr_unknown_id;
6782206b 1085 return 0;
9e69c210 1086 }
1b29ac59 1087 dump_sample(evsel, event, sample);
0c095715 1088 if (machine == NULL) {
313e53b0 1089 ++evlist->stats.nr_unprocessable_samples;
6782206b 1090 return 0;
0c095715 1091 }
313e53b0 1092 return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
cbf41645 1093 case PERF_RECORD_MMAP:
45694aa7 1094 return tool->mmap(tool, event, sample, machine);
5c5e854b 1095 case PERF_RECORD_MMAP2:
930e6fcd
KL		 1096 if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT)
1097 ++evlist->stats.nr_proc_map_timeout;
5c5e854b 1098 return tool->mmap2(tool, event, sample, machine);
cbf41645 1099 case PERF_RECORD_COMM:
45694aa7 1100 return tool->comm(tool, event, sample, machine);
cbf41645 1101 case PERF_RECORD_FORK:
45694aa7 1102 return tool->fork(tool, event, sample, machine);
cbf41645 1103 case PERF_RECORD_EXIT:
45694aa7 1104 return tool->exit(tool, event, sample, machine);
cbf41645 1105 case PERF_RECORD_LOST:
45694aa7 1106 if (tool->lost == perf_event__process_lost)
313e53b0 1107 evlist->stats.total_lost += event->lost.lost;
45694aa7 1108 return tool->lost(tool, event, sample, machine);
c4937a91
KL		 1109 case PERF_RECORD_LOST_SAMPLES:
1110 if (tool->lost_samples == perf_event__process_lost_samples)
1111 evlist->stats.total_lost_samples += event->lost_samples.lost;
1112 return tool->lost_samples(tool, event, sample, machine);
cbf41645 1113 case PERF_RECORD_READ:
45694aa7 1114 return tool->read(tool, event, sample, evsel, machine);
cbf41645 1115 case PERF_RECORD_THROTTLE:
45694aa7 1116 return tool->throttle(tool, event, sample, machine);
cbf41645 1117 case PERF_RECORD_UNTHROTTLE:
45694aa7 1118 return tool->unthrottle(tool, event, sample, machine);
4a96f7a0
AH		 1119 case PERF_RECORD_AUX:
1120 return tool->aux(tool, event, sample, machine);
0ad21f68
AH		 1121 case PERF_RECORD_ITRACE_START:
1122 return tool->itrace_start(tool, event, sample, machine);
0286039f
AH		 1123 case PERF_RECORD_SWITCH:
1124 case PERF_RECORD_SWITCH_CPU_WIDE:
1125 return tool->context_switch(tool, event, sample, machine);
cbf41645 1126 default:
313e53b0 1127 ++evlist->stats.nr_unknown_events;
cbf41645
TG		 1128 return -1;
1129 }
1130}
1131
c446870d
AH		 1132static int perf_session__deliver_event(struct perf_session *session,
1133 union perf_event *event,
1134 struct perf_sample *sample,
1135 struct perf_tool *tool,
1136 u64 file_offset)
1137{
1138 int ret;
1139
1140 ret = auxtrace__process_event(session, event, sample, tool);
1141 if (ret < 0)
1142 return ret;
1143 if (ret > 0)
1144 return 0;
1145
1146 return machines__deliver_event(&session->machines, session->evlist,
1147 event, sample, tool, file_offset);
1148}
1149
d5652d86
AH		 1150static s64 perf_session__process_user_event(struct perf_session *session,
1151 union perf_event *event,
d5652d86 1152 u64 file_offset)
06aae590 1153{
d704ebda 1154 struct ordered_events *oe = &session->ordered_events;
9870d780 1155 struct perf_tool *tool = session->tool;
cc9784bd 1156 int fd = perf_data_file__fd(session->file);
10d0f086
ACM		 1157 int err;
1158
9fa8727a 1159 dump_event(session->evlist, event, file_offset, NULL);
06aae590 1160
cbf41645 1161 /* These events are processed right away */
06aae590 1162 switch (event->header.type) {
2c46dbb5 1163 case PERF_RECORD_HEADER_ATTR:
47c3d109 1164 err = tool->attr(tool, event, &session->evlist);
cfe1c414 1165 if (err == 0) {
7b56cce2 1166 perf_session__set_id_hdr_size(session);
cfe1c414
AH		 1167 perf_session__set_comm_exec(session);
1168 }
10d0f086 1169 return err;
f67697bd
JO		 1170 case PERF_RECORD_HEADER_EVENT_TYPE:
1171 /*
1172 * Depreceated, but we need to handle it for sake
1173 * of old data files create in pipe mode.
1174 */
1175 return 0;
9215545e
TZ		 1176 case PERF_RECORD_HEADER_TRACING_DATA:
1177 /* setup for reading amidst mmap */
cc9784bd 1178 lseek(fd, file_offset, SEEK_SET);
47c3d109 1179 return tool->tracing_data(tool, event, session);
c7929e47 1180 case PERF_RECORD_HEADER_BUILD_ID:
45694aa7 1181 return tool->build_id(tool, event, session);
d6b17beb 1182 case PERF_RECORD_FINISHED_ROUND:
d704ebda 1183 return tool->finished_round(tool, event, oe);
3c659eed
AH		 1184 case PERF_RECORD_ID_INDEX:
1185 return tool->id_index(tool, event, session);
a16ac023
AH		 1186 case PERF_RECORD_AUXTRACE_INFO:
1187 return tool->auxtrace_info(tool, event, session);
1188 case PERF_RECORD_AUXTRACE:
1189 /* setup for reading amidst mmap */
1190 lseek(fd, file_offset + event->header.size, SEEK_SET);
1191 return tool->auxtrace(tool, event, session);
e9bf54d2 1192 case PERF_RECORD_AUXTRACE_ERROR:
85ed4729 1193 perf_session__auxtrace_error_inc(session, event);
e9bf54d2 1194 return tool->auxtrace_error(tool, event, session);
06aae590 1195 default:
ba74f064 1196 return -EINVAL;
06aae590 1197 }
ba74f064
TG		 1198}
1199
a293829d
AH		 1200int perf_session__deliver_synth_event(struct perf_session *session,
1201 union perf_event *event,
b7b61cbe 1202 struct perf_sample *sample)
a293829d 1203{
fa713a4e 1204 struct perf_evlist *evlist = session->evlist;
9870d780 1205 struct perf_tool *tool = session->tool;
fa713a4e
ACM		 1206
1207 events_stats__inc(&evlist->stats, event->header.type);
a293829d
AH		 1208
1209 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1210 return perf_session__process_user_event(session, event, 0);
a293829d 1211
fa713a4e 1212 return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0);
a293829d
AH		 1213}
1214
268fb20f
JO		 1215static void event_swap(union perf_event *event, bool sample_id_all)
1216{
1217 perf_event__swap_op swap;
1218
1219 swap = perf_event__swap_ops[event->header.type];
1220 if (swap)
1221 swap(event, sample_id_all);
1222}
1223
5a52f33a
AH		 1224int perf_session__peek_event(struct perf_session *session, off_t file_offset,
1225 void *buf, size_t buf_sz,
1226 union perf_event **event_ptr,
1227 struct perf_sample *sample)
1228{
1229 union perf_event *event;
1230 size_t hdr_sz, rest;
1231 int fd;
1232
1233 if (session->one_mmap && !session->header.needs_swap) {
1234 event = file_offset - session->one_mmap_offset +
1235 session->one_mmap_addr;
1236 goto out_parse_sample;
1237 }
1238
1239 if (perf_data_file__is_pipe(session->file))
1240 return -1;
1241
1242 fd = perf_data_file__fd(session->file);
1243 hdr_sz = sizeof(struct perf_event_header);
1244
1245 if (buf_sz < hdr_sz)
1246 return -1;
1247
1248 if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 ||
554e92ed 1249 readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz)
5a52f33a
AH		 1250 return -1;
1251
1252 event = (union perf_event *)buf;
1253
1254 if (session->header.needs_swap)
1255 perf_event_header__bswap(&event->header);
1256
554e92ed 1257 if (event->header.size < hdr_sz || event->header.size > buf_sz)
5a52f33a
AH		 1258 return -1;
1259
1260 rest = event->header.size - hdr_sz;
1261
554e92ed 1262 if (readn(fd, buf, rest) != (ssize_t)rest)
5a52f33a
AH		 1263 return -1;
1264
1265 if (session->header.needs_swap)
1266 event_swap(event, perf_evlist__sample_id_all(session->evlist));
1267
1268out_parse_sample:
1269
1270 if (sample && event->header.type < PERF_RECORD_USER_TYPE_START &&
1271 perf_evlist__parse_sample(session->evlist, event, sample))
1272 return -1;
1273
1274 *event_ptr = event;
1275
1276 return 0;
1277}
1278
d5652d86 1279static s64 perf_session__process_event(struct perf_session *session,
b7b61cbe 1280 union perf_event *event, u64 file_offset)
ba74f064 1281{
313e53b0 1282 struct perf_evlist *evlist = session->evlist;
9870d780 1283 struct perf_tool *tool = session->tool;
8d50e5b4 1284 struct perf_sample sample;
ba74f064
TG		 1285 int ret;
1286
268fb20f 1287 if (session->header.needs_swap)
313e53b0 1288 event_swap(event, perf_evlist__sample_id_all(evlist));
ba74f064
TG		 1289
1290 if (event->header.type >= PERF_RECORD_HEADER_MAX)
1291 return -EINVAL;
1292
313e53b0 1293 events_stats__inc(&evlist->stats, event->header.type);
ba74f064
TG		 1294
1295 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1296 return perf_session__process_user_event(session, event, file_offset);
cbf41645 1297
3dfc2c0a
TG		 1298 /*
1299 * For all kernel events we get the sample data
1300 */
313e53b0 1301 ret = perf_evlist__parse_sample(evlist, event, &sample);
5538beca
FW		 1302 if (ret)
1303 return ret;
3dfc2c0a 1304
0a8cb85c 1305 if (tool->ordered_events) {
b7b61cbe 1306 ret = perf_session__queue_event(session, event, &sample, file_offset);
cbf41645
TG		 1307 if (ret != -ETIME)
1308 return ret;
1309 }
1310
c446870d
AH		 1311 return perf_session__deliver_event(session, event, &sample, tool,
1312 file_offset);
06aae590
ACM		 1313}
1314
316c7136 1315void perf_event_header__bswap(struct perf_event_header *hdr)
ba21594c 1316{
316c7136
ACM		 1317 hdr->type = bswap_32(hdr->type);
1318 hdr->misc = bswap_16(hdr->misc);
1319 hdr->size = bswap_16(hdr->size);
ba21594c
ACM		 1320}
1321
b424eba2
ACM		 1322struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
1323{
1fcb8768 1324 return machine__findnew_thread(&session->machines.host, -1, pid);
b424eba2
ACM		 1325}
1326
316c7136 1327static struct thread *perf_session__register_idle_thread(struct perf_session *session)
06aae590 1328{
1fcb8768 1329 struct thread *thread;
06aae590 1330
1fcb8768 1331 thread = machine__findnew_thread(&session->machines.host, 0, 0);
162f0bef 1332 if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
06aae590
ACM		 1333 pr_err("problem inserting idle task.\n");
1334 thread = NULL;
1335 }
1336
1337 return thread;
1338}
1339
9870d780 1340static void perf_session__warn_about_errors(const struct perf_session *session)
11095994 1341{
9870d780
ACM		 1342 const struct events_stats *stats = &session->evlist->stats;
1343 const struct ordered_events *oe = &session->ordered_events;
1344
1345 if (session->tool->lost == perf_event__process_lost &&
ccda068f 1346 stats->nr_events[PERF_RECORD_LOST] != 0) {
7b27509f
ACM		 1347 ui__warning("Processed %d events and lost %d chunks!\n\n"
1348 "Check IO/CPU overload!\n\n",
ccda068f
ACM		 1349 stats->nr_events[0],
1350 stats->nr_events[PERF_RECORD_LOST]);
11095994
ACM		 1351 }
1352
c4937a91
KL		 1353 if (session->tool->lost_samples == perf_event__process_lost_samples) {
1354 double drop_rate;
1355
1356 drop_rate = (double)stats->total_lost_samples /
1357 (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples);
1358 if (drop_rate > 0.05) {
6ba29c2f 1359 ui__warning("Processed %" PRIu64 " samples and lost %3.2f%% samples!\n\n",
c4937a91
KL		 1360 stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples,
1361 drop_rate * 100.0);
1362 }
1363 }
1364
ccda068f 1365 if (stats->nr_unknown_events != 0) {
11095994
ACM		 1366 ui__warning("Found %u unknown events!\n\n"
1367 "Is this an older tool processing a perf.data "
1368 "file generated by a more recent tool?\n\n"
1369 "If that is not the case, consider "
1370 "reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f 1371 stats->nr_unknown_events);
11095994
ACM		 1372 }
1373
ccda068f 1374 if (stats->nr_unknown_id != 0) {
9e69c210 1375 ui__warning("%u samples with id not present in the header\n",
ccda068f 1376 stats->nr_unknown_id);
9e69c210
ACM		 1377 }
1378
ccda068f 1379 if (stats->nr_invalid_chains != 0) {
75be989a
ACM		 1380 ui__warning("Found invalid callchains!\n\n"
1381 "%u out of %u events were discarded for this reason.\n\n"
1382 "Consider reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f
ACM		 1383 stats->nr_invalid_chains,
1384 stats->nr_events[PERF_RECORD_SAMPLE]);
75be989a 1385 }
0c095715 1386
ccda068f 1387 if (stats->nr_unprocessable_samples != 0) {
0c095715
JR		 1388 ui__warning("%u unprocessable samples recorded.\n"
1389 "Do you have a KVM guest running and not using 'perf kvm'?\n",
ccda068f 1390 stats->nr_unprocessable_samples);
0c095715 1391 }
f61ff6c0 1392
9870d780
ACM		 1393 if (oe->nr_unordered_events != 0)
1394 ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events);
85ed4729
AH		 1395
1396 events_stats__auxtrace_error_warn(stats);
930e6fcd
KL		 1397
1398 if (stats->nr_proc_map_timeout != 0) {
1399 ui__warning("%d map information files for pre-existing threads were\n"
1400 "not processed, if there are samples for addresses they\n"
1401 "will not be resolved, you may find out which are these\n"
1402 "threads by running with -v and redirecting the output\n"
9d9cad76
KL		 1403 "to a file.\n"
1404 "The time limit to process proc map is too short?\n"
1405 "Increase it by --proc-map-timeout\n",
930e6fcd
KL		 1406 stats->nr_proc_map_timeout);
1407 }
11095994
ACM		 1408}
1409
a5499b37
AH		 1410static int perf_session__flush_thread_stack(struct thread *thread,
1411 void *p __maybe_unused)
1412{
1413 return thread_stack__flush(thread);
1414}
1415
1416static int perf_session__flush_thread_stacks(struct perf_session *session)
1417{
1418 return machines__for_each_thread(&session->machines,
1419 perf_session__flush_thread_stack,
1420 NULL);
1421}
1422
8dc58101
TZ		 1423volatile int session_done;
1424
b7b61cbe 1425static int __perf_session__process_pipe_events(struct perf_session *session)
8dc58101 1426{
fa713a4e 1427 struct ordered_events *oe = &session->ordered_events;
9870d780 1428 struct perf_tool *tool = session->tool;
316c7136 1429 int fd = perf_data_file__fd(session->file);
444d2866
SE		 1430 union perf_event *event;
1431 uint32_t size, cur_size = 0;
1432 void *buf = NULL;
d5652d86 1433 s64 skip = 0;
8dc58101 1434 u64 head;
727ebd54 1435 ssize_t err;
8dc58101
TZ		 1436 void *p;
1437
45694aa7 1438 perf_tool__fill_defaults(tool);
8dc58101
TZ		 1439
1440 head = 0;
444d2866
SE		 1441 cur_size = sizeof(union perf_event);
1442
1443 buf = malloc(cur_size);
1444 if (!buf)
1445 return -errno;
8dc58101 1446more:
444d2866 1447 event = buf;
cc9784bd 1448 err = readn(fd, event, sizeof(struct perf_event_header));
8dc58101
TZ		 1449 if (err <= 0) {
1450 if (err == 0)
1451 goto done;
1452
1453 pr_err("failed to read event header\n");
1454 goto out_err;
1455 }
1456
316c7136 1457 if (session->header.needs_swap)
444d2866 1458 perf_event_header__bswap(&event->header);
8dc58101 1459
444d2866 1460 size = event->header.size;
27389d78
AH		 1461 if (size < sizeof(struct perf_event_header)) {
1462 pr_err("bad event header size\n");
1463 goto out_err;
1464 }
8dc58101 1465
444d2866
SE		 1466 if (size > cur_size) {
1467 void *new = realloc(buf, size);
1468 if (!new) {
1469 pr_err("failed to allocate memory to read event\n");
1470 goto out_err;
1471 }
1472 buf = new;
1473 cur_size = size;
1474 event = buf;
1475 }
1476 p = event;
8dc58101
TZ		 1477 p += sizeof(struct perf_event_header);
1478
794e43b5 1479 if (size - sizeof(struct perf_event_header)) {
cc9784bd 1480 err = readn(fd, p, size - sizeof(struct perf_event_header));
794e43b5
TZ		 1481 if (err <= 0) {
1482 if (err == 0) {
1483 pr_err("unexpected end of event stream\n");
1484 goto done;
1485 }
8dc58101 1486
794e43b5
TZ		 1487 pr_err("failed to read event data\n");
1488 goto out_err;
1489 }
8dc58101
TZ		 1490 }
1491
b7b61cbe 1492 if ((skip = perf_session__process_event(session, event, head)) < 0) {
9389a460 1493 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
444d2866 1494 head, event->header.size, event->header.type);
9389a460
JO		 1495 err = -EINVAL;
1496 goto out_err;
8dc58101
TZ		 1497 }
1498
1499 head += size;
1500
8dc58101
TZ		 1501 if (skip > 0)
1502 head += skip;
1503
1504 if (!session_done())
1505 goto more;
1506done:
8c16b649 1507 /* do the final flush for ordered samples */
b7b61cbe 1508 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1509 if (err)
1510 goto out_err;
1511 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1512 if (err)
1513 goto out_err;
1514 err = perf_session__flush_thread_stacks(session);
8dc58101 1515out_err:
444d2866 1516 free(buf);
9870d780 1517 perf_session__warn_about_errors(session);
adc56ed1 1518 ordered_events__free(&session->ordered_events);
c446870d 1519 auxtrace__free_events(session);
8dc58101
TZ		 1520 return err;
1521}
1522
998bedc8
FW		 1523static union perf_event *
1524fetch_mmaped_event(struct perf_session *session,
1525 u64 head, size_t mmap_size, char *buf)
1526{
1527 union perf_event *event;
1528
1529 /*
1530 * Ensure we have enough space remaining to read
1531 * the size of the event in the headers.
1532 */
1533 if (head + sizeof(event->header) > mmap_size)
1534 return NULL;
1535
1536 event = (union perf_event *)(buf + head);
1537
1538 if (session->header.needs_swap)
1539 perf_event_header__bswap(&event->header);
1540
27389d78
AH		 1541 if (head + event->header.size > mmap_size) {
1542 /* We're not fetching the event so swap back again */
1543 if (session->header.needs_swap)
1544 perf_event_header__bswap(&event->header);
998bedc8 1545 return NULL;
27389d78 1546 }
998bedc8
FW		 1547
1548 return event;
1549}
1550
35d48ddf
DM		 1551/*
1552 * On 64bit we can mmap the data file in one go. No need for tiny mmap
1553 * slices. On 32bit we use 32MB.
1554 */
1555#if BITS_PER_LONG == 64
1556#define MMAP_SIZE ULLONG_MAX
1557#define NUM_MMAPS 1
1558#else
1559#define MMAP_SIZE (32 * 1024 * 1024ULL)
1560#define NUM_MMAPS 128
1561#endif
1562
4ac30cf7
NK		 1563static int __perf_session__process_events(struct perf_session *session,
1564 u64 data_offset, u64 data_size,
b7b61cbe 1565 u64 file_size)
06aae590 1566{
fa713a4e 1567 struct ordered_events *oe = &session->ordered_events;
9870d780 1568 struct perf_tool *tool = session->tool;
cc9784bd 1569 int fd = perf_data_file__fd(session->file);
d5652d86 1570 u64 head, page_offset, file_offset, file_pos, size;
fe174207 1571 int err, mmap_prot, mmap_flags, map_idx = 0;
0c1fe6b2 1572 size_t mmap_size;
35d48ddf 1573 char *buf, *mmaps[NUM_MMAPS];
8115d60c 1574 union perf_event *event;
4d3001fd 1575 struct ui_progress prog;
d5652d86 1576 s64 skip;
0331ee0c 1577
45694aa7 1578 perf_tool__fill_defaults(tool);
06aae590 1579
0331ee0c
TG		 1580 page_offset = page_size * (data_offset / page_size);
1581 file_offset = page_offset;
1582 head = data_offset - page_offset;
06aae590 1583
b314e5cf 1584 if (data_size && (data_offset + data_size < file_size))
d6513281
TG		 1585 file_size = data_offset + data_size;
1586
4d3001fd 1587 ui_progress__init(&prog, file_size, "Processing events...");
55b44629 1588
35d48ddf 1589 mmap_size = MMAP_SIZE;
919d86d3 1590 if (mmap_size > file_size) {
55b44629 1591 mmap_size = file_size;
919d86d3
AH		 1592 session->one_mmap = true;
1593 }
55b44629 1594
fe174207
TG		 1595 memset(mmaps, 0, sizeof(mmaps));
1596
ba21594c
ACM		 1597 mmap_prot = PROT_READ;
1598 mmap_flags = MAP_SHARED;
1599
0331ee0c 1600 if (session->header.needs_swap) {
ba21594c
ACM		 1601 mmap_prot |= PROT_WRITE;
1602 mmap_flags = MAP_PRIVATE;
1603 }
06aae590 1604remap:
cc9784bd 1605 buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd,
55b44629 1606 file_offset);
06aae590
ACM		 1607 if (buf == MAP_FAILED) {
1608 pr_err("failed to mmap file\n");
1609 err = -errno;
1610 goto out_err;
1611 }
fe174207
TG		 1612 mmaps[map_idx] = buf;
1613 map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1);
d6513281 1614 file_pos = file_offset + head;
919d86d3
AH		 1615 if (session->one_mmap) {
1616 session->one_mmap_addr = buf;
1617 session->one_mmap_offset = file_offset;
1618 }
06aae590
ACM		 1619
1620more:
998bedc8
FW		 1621 event = fetch_mmaped_event(session, head, mmap_size, buf);
1622 if (!event) {
fe174207
TG		 1623 if (mmaps[map_idx]) {
1624 munmap(mmaps[map_idx], mmap_size);
1625 mmaps[map_idx] = NULL;
1626 }
06aae590 1627
0331ee0c
TG		 1628 page_offset = page_size * (head / page_size);
1629 file_offset += page_offset;
1630 head -= page_offset;
06aae590
ACM		 1631 goto remap;
1632 }
1633
1634 size = event->header.size;
1635
27389d78 1636 if (size < sizeof(struct perf_event_header) ||
b7b61cbe 1637 (skip = perf_session__process_event(session, event, file_pos)) < 0) {
9389a460
JO		 1638 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
1639 file_offset + head, event->header.size,
1640 event->header.type);
1641 err = -EINVAL;
1642 goto out_err;
06aae590
ACM		 1643 }
1644
6f917c70
AH		 1645 if (skip)
1646 size += skip;
1647
06aae590 1648 head += size;
d6513281 1649 file_pos += size;
06aae590 1650
4d3001fd 1651 ui_progress__update(&prog, size);
55b44629 1652
33e940a2 1653 if (session_done())
8c16b649 1654 goto out;
33e940a2 1655
d6513281 1656 if (file_pos < file_size)
06aae590 1657 goto more;
d6513281 1658
8c16b649 1659out:
c61e52ee 1660 /* do the final flush for ordered samples */
b7b61cbe 1661 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1662 if (err)
1663 goto out_err;
1664 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1665 if (err)
1666 goto out_err;
1667 err = perf_session__flush_thread_stacks(session);
06aae590 1668out_err:
a5580f3e 1669 ui_progress__finish();
9870d780 1670 perf_session__warn_about_errors(session);
adc56ed1 1671 ordered_events__free(&session->ordered_events);
c446870d 1672 auxtrace__free_events(session);
919d86d3 1673 session->one_mmap = false;
06aae590
ACM		 1674 return err;
1675}
27295592 1676
b7b61cbe 1677int perf_session__process_events(struct perf_session *session)
6122e4e4 1678{
316c7136 1679 u64 size = perf_data_file__size(session->file);
6122e4e4
ACM		 1680 int err;
1681
316c7136 1682 if (perf_session__register_idle_thread(session) == NULL)
6122e4e4
ACM		 1683 return -ENOMEM;
1684
316c7136
ACM		 1685 if (!perf_data_file__is_pipe(session->file))
1686 err = __perf_session__process_events(session,
1687 session->header.data_offset,
b7b61cbe 1688 session->header.data_size, size);
8dc58101 1689 else
b7b61cbe 1690 err = __perf_session__process_pipe_events(session);
88ca895d 1691
6122e4e4
ACM		 1692 return err;
1693}
1694
7f3be652 1695bool perf_session__has_traces(struct perf_session *session, const char *msg)
27295592 1696{
93ea01c2
DA		 1697 struct perf_evsel *evsel;
1698
0050f7aa 1699 evlist__for_each(session->evlist, evsel) {
93ea01c2
DA		 1700 if (evsel->attr.type == PERF_TYPE_TRACEPOINT)
1701 return true;
27295592
ACM		 1702 }
1703
93ea01c2
DA		 1704 pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
1705 return false;
27295592 1706}
56b03f3c 1707
743eb868
ACM		 1708int maps__set_kallsyms_ref_reloc_sym(struct map **maps,
1709 const char *symbol_name, u64 addr)
56b03f3c
ACM		 1710{
1711 char *bracket;
9de89fe7 1712 enum map_type i;
a1645ce1
ZY		 1713 struct ref_reloc_sym *ref;
1714
1715 ref = zalloc(sizeof(struct ref_reloc_sym));
1716 if (ref == NULL)
1717 return -ENOMEM;
56b03f3c 1718
a1645ce1
ZY		 1719 ref->name = strdup(symbol_name);
1720 if (ref->name == NULL) {
1721 free(ref);
56b03f3c 1722 return -ENOMEM;
a1645ce1 1723 }
56b03f3c 1724
a1645ce1 1725 bracket = strchr(ref->name, ']');
56b03f3c
ACM		 1726 if (bracket)
1727 *bracket = '\0';
1728
a1645ce1 1729 ref->addr = addr;
9de89fe7
ACM		 1730
1731 for (i = 0; i < MAP__NR_TYPES; ++i) {
a1645ce1 1732 struct kmap *kmap = map__kmap(maps[i]);
ba92732e
WN		 1733
1734 if (!kmap)
1735 continue;
a1645ce1 1736 kmap->ref_reloc_sym = ref;
9de89fe7
ACM		 1737 }
1738
56b03f3c
ACM		 1739 return 0;
1740}
1f626bc3 1741
316c7136 1742size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
1f626bc3 1743{
316c7136 1744 return machines__fprintf_dsos(&session->machines, fp);
1f626bc3 1745}
f869097e 1746
316c7136 1747size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
417c2ff6 1748 bool (skip)(struct dso *dso, int parm), int parm)
f869097e 1749{
316c7136 1750 return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
f869097e 1751}
e248de33
ACM		 1752
1753size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
1754{
c446870d
AH		 1755 size_t ret;
1756 const char *msg = "";
1757
1758 if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
1759 msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
1760
fe692ac8 1761 ret = fprintf(fp, "\nAggregated stats:%s\n", msg);
e248de33 1762
75be989a 1763 ret += events_stats__fprintf(&session->evlist->stats, fp);
e248de33
ACM		 1764 return ret;
1765}
c0230b2b 1766
b424eba2
ACM		 1767size_t perf_session__fprintf(struct perf_session *session, FILE *fp)
1768{
1769 /*
1770 * FIXME: Here we have to actually print all the machines in this
1771 * session, not just the host...
1772 */
876650e6 1773 return machine__fprintf(&session->machines.host, fp);
b424eba2
ACM		 1774}
1775
9cbdb702
DA		 1776struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
1777 unsigned int type)
1778{
1779 struct perf_evsel *pos;
1780
0050f7aa 1781 evlist__for_each(session->evlist, pos) {
9cbdb702
DA		 1782 if (pos->attr.type == type)
1783 return pos;
1784 }
1785 return NULL;
1786}
1787
a2cb3cf2 1788void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
cc22e575 1789 struct addr_location *al,
307cbb92 1790 unsigned int print_opts, unsigned int stack_depth)
c0230b2b 1791{
c0230b2b 1792 struct callchain_cursor_node *node;
a6ffaf91
DA		 1793 int print_ip = print_opts & PRINT_IP_OPT_IP;
1794 int print_sym = print_opts & PRINT_IP_OPT_SYM;
1795 int print_dso = print_opts & PRINT_IP_OPT_DSO;
1796 int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
b0b35f01 1797 int print_oneline = print_opts & PRINT_IP_OPT_ONELINE;
cc8fae1d 1798 int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE;
b0b35f01 1799 char s = print_oneline ? ' ' : '\t';
c0230b2b 1800
c0230b2b 1801 if (symbol_conf.use_callchain && sample->callchain) {
a2cb3cf2 1802 struct addr_location node_al;
c0230b2b 1803
cc8b7c2b
ACM		 1804 if (thread__resolve_callchain(al->thread, evsel,
1805 sample, NULL, NULL,
1806 PERF_MAX_STACK_DEPTH) != 0) {
c0230b2b
DA		 1807 if (verbose)
1808 error("Failed to resolve callchain. Skipping\n");
1809 return;
1810 }
47260645 1811 callchain_cursor_commit(&callchain_cursor);
c0230b2b 1812
a2cb3cf2
AH		 1813 if (print_symoffset)
1814 node_al = *al;
1815
307cbb92 1816 while (stack_depth) {
a4eb24a4
AH		 1817 u64 addr = 0;
1818
47260645 1819 node = callchain_cursor_current(&callchain_cursor);
c0230b2b
DA		 1820 if (!node)
1821 break;
1822
d2ff1b14
DA		 1823 if (node->sym && node->sym->ignore)
1824 goto next;
1825
a6ffaf91 1826 if (print_ip)
b0b35f01 1827 printf("%c%16" PRIx64, s, node->ip);
a6ffaf91 1828
a4eb24a4
AH		 1829 if (node->map)
1830 addr = node->map->map_ip(node->map, node->ip);
1831
787bef17 1832 if (print_sym) {
547a92e0 1833 printf(" ");
251f426f 1834 if (print_symoffset) {
a4eb24a4 1835 node_al.addr = addr;
a2cb3cf2
AH		 1836 node_al.map = node->map;
1837 symbol__fprintf_symname_offs(node->sym, &node_al, stdout);
251f426f
DA		 1838 } else
1839 symbol__fprintf_symname(node->sym, stdout);
610723f2 1840 }
251f426f 1841
610723f2 1842 if (print_dso) {
547a92e0 1843 printf(" (");
52deff71 1844 map__fprintf_dsoname(node->map, stdout);
547a92e0 1845 printf(")");
787bef17 1846 }
b0b35f01 1847
cc8fae1d
AH		 1848 if (print_srcline)
1849 map__fprintf_srcline(node->map, addr, "\n ",
1850 stdout);
1851
b0b35f01
DA		 1852 if (!print_oneline)
1853 printf("\n");
c0230b2b 1854
307cbb92 1855 stack_depth--;
d2ff1b14
DA		 1856next:
1857 callchain_cursor_advance(&callchain_cursor);
c0230b2b
DA		 1858 }
1859
1860 } else {
a2cb3cf2 1861 if (al->sym && al->sym->ignore)
d2ff1b14
DA		 1862 return;
1863
a6ffaf91
DA		 1864 if (print_ip)
1865 printf("%16" PRIx64, sample->ip);
1866
787bef17 1867 if (print_sym) {
547a92e0 1868 printf(" ");
a978f2ab 1869 if (print_symoffset)
a2cb3cf2 1870 symbol__fprintf_symname_offs(al->sym, al,
a978f2ab
AN		 1871 stdout);
1872 else
a2cb3cf2 1873 symbol__fprintf_symname(al->sym, stdout);
610723f2
DA		 1874 }
1875
1876 if (print_dso) {
547a92e0 1877 printf(" (");
a2cb3cf2 1878 map__fprintf_dsoname(al->map, stdout);
547a92e0 1879 printf(")");
787bef17 1880 }
cc8fae1d
AH		 1881
1882 if (print_srcline)
1883 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
c0230b2b
DA		 1884 }
1885}
5d67be97
AB		 1886
1887int perf_session__cpu_bitmap(struct perf_session *session,
1888 const char *cpu_list, unsigned long *cpu_bitmap)
1889{
8bac41cb 1890 int i, err = -1;
5d67be97
AB		 1891 struct cpu_map *map;
1892
1893 for (i = 0; i < PERF_TYPE_MAX; ++i) {
1894 struct perf_evsel *evsel;
1895
1896 evsel = perf_session__find_first_evtype(session, i);
1897 if (!evsel)
1898 continue;
1899
1900 if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
1901 pr_err("File does not contain CPU events. "
1902 "Remove -c option to proceed.\n");
1903 return -1;
1904 }
1905 }
1906
1907 map = cpu_map__new(cpu_list);
47fbe53b
DA		 1908 if (map == NULL) {
1909 pr_err("Invalid cpu_list\n");
1910 return -1;
1911 }
5d67be97
AB		 1912
1913 for (i = 0; i < map->nr; i++) {
1914 int cpu = map->map[i];
1915
1916 if (cpu >= MAX_NR_CPUS) {
1917 pr_err("Requested CPU %d too large. "
1918 "Consider raising MAX_NR_CPUS\n", cpu);
8bac41cb 1919 goto out_delete_map;
5d67be97
AB		 1920 }
1921
1922 set_bit(cpu, cpu_bitmap);
1923 }
1924
8bac41cb
SF		 1925 err = 0;
1926
1927out_delete_map:
f30a79b0 1928 cpu_map__put(map);
8bac41cb 1929 return err;
5d67be97 1930}
fbe96f29
SE		 1931
1932void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
1933 bool full)
1934{
1935 struct stat st;
c5765ece 1936 int fd, ret;
fbe96f29
SE		 1937
1938 if (session == NULL || fp == NULL)
1939 return;
1940
c5765ece
MI		 1941 fd = perf_data_file__fd(session->file);
1942
cc9784bd 1943 ret = fstat(fd, &st);
fbe96f29
SE		 1944 if (ret == -1)
1945 return;
1946
1947 fprintf(fp, "# ========\n");
1948 fprintf(fp, "# captured on: %s", ctime(&st.st_ctime));
1949 perf_header__fprintf_info(session, fp, full);
1950 fprintf(fp, "# ========\n#\n");
1951}
da378962
ACM		 1952
1953
1954int __perf_session__set_tracepoints_handlers(struct perf_session *session,
1955 const struct perf_evsel_str_handler *assocs,
1956 size_t nr_assocs)
1957{
da378962 1958 struct perf_evsel *evsel;
da378962
ACM		 1959 size_t i;
1960 int err;
1961
1962 for (i = 0; i < nr_assocs; i++) {
ccf53eac
ACM		 1963 /*
1964 * Adding a handler for an event not in the session,
1965 * just ignore it.
1966 */
1967 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name);
da378962 1968 if (evsel == NULL)
ccf53eac 1969 continue;
da378962
ACM		 1970
1971 err = -EEXIST;
744a9719 1972 if (evsel->handler != NULL)
ccf53eac 1973 goto out;
744a9719 1974 evsel->handler = assocs[i].handler;
da378962
ACM		 1975 }
1976
1977 err = 0;
1978out:
1979 return err;
da378962 1980}
3c659eed
AH		 1981
1982int perf_event__process_id_index(struct perf_tool *tool __maybe_unused,
1983 union perf_event *event,
1984 struct perf_session *session)
1985{
1986 struct perf_evlist *evlist = session->evlist;
1987 struct id_index_event *ie = &event->id_index;
1988 size_t i, nr, max_nr;
1989
1990 max_nr = (ie->header.size - sizeof(struct id_index_event)) /
1991 sizeof(struct id_index_entry);
1992 nr = ie->nr;
1993 if (nr > max_nr)
1994 return -EINVAL;
1995
1996 if (dump_trace)
1997 fprintf(stdout, " nr: %zu\n", nr);
1998
1999 for (i = 0; i < nr; i++) {
2000 struct id_index_entry *e = &ie->entries[i];
2001 struct perf_sample_id *sid;
2002
2003 if (dump_trace) {
2004 fprintf(stdout, " ... id: %"PRIu64, e->id);
2005 fprintf(stdout, " idx: %"PRIu64, e->idx);
2006 fprintf(stdout, " cpu: %"PRId64, e->cpu);
2007 fprintf(stdout, " tid: %"PRId64"\n", e->tid);
2008 }
2009
2010 sid = perf_evlist__id2sid(evlist, e->id);
2011 if (!sid)
2012 return -ENOENT;
2013 sid->idx = e->idx;
2014 sid->cpu = e->cpu;
2015 sid->tid = e->tid;
2016 }
2017 return 0;
2018}
2019
2020int perf_event__synthesize_id_index(struct perf_tool *tool,
2021 perf_event__handler_t process,
2022 struct perf_evlist *evlist,
2023 struct machine *machine)
2024{
2025 union perf_event *ev;
2026 struct perf_evsel *evsel;
2027 size_t nr = 0, i = 0, sz, max_nr, n;
2028 int err;
2029
2030 pr_debug2("Synthesizing id index\n");
2031
2032 max_nr = (UINT16_MAX - sizeof(struct id_index_event)) /
2033 sizeof(struct id_index_entry);
2034
cba9b847 2035 evlist__for_each(evlist, evsel)
3c659eed
AH		 2036 nr += evsel->ids;
2037
2038 n = nr > max_nr ? max_nr : nr;
2039 sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry);
2040 ev = zalloc(sz);
2041 if (!ev)
2042 return -ENOMEM;
2043
2044 ev->id_index.header.type = PERF_RECORD_ID_INDEX;
2045 ev->id_index.header.size = sz;
2046 ev->id_index.nr = n;
2047
cba9b847 2048 evlist__for_each(evlist, evsel) {
3c659eed
AH		 2049 u32 j;
2050
2051 for (j = 0; j < evsel->ids; j++) {
2052 struct id_index_entry *e;
2053 struct perf_sample_id *sid;
2054
2055 if (i >= n) {
2056 err = process(tool, ev, NULL, machine);
2057 if (err)
2058 goto out_err;
2059 nr -= n;
2060 i = 0;
2061 }
2062
2063 e = &ev->id_index.entries[i++];
2064
2065 e->id = evsel->id[j];
2066
2067 sid = perf_evlist__id2sid(evlist, e->id);
2068 if (!sid) {
2069 free(ev);
2070 return -ENOENT;
2071 }
2072
2073 e->idx = sid->idx;
2074 e->cpu = sid->cpu;
2075 e->tid = sid->tid;
2076 }
2077 }
2078
2079 sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry);
2080 ev->id_index.header.size = sz;
2081 ev->id_index.nr = nr;
2082
2083 err = process(tool, ev, NULL, machine);
2084out_err:
2085 free(ev);
2086
2087 return err;
2088}
Linux kernel - Deliverables
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