projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
perf tools: Allow events with dot
[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
03cd2094
NK		 173static void perf_session_env__delete(struct perf_session_env *env)
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);
183 zfree(&env->sibling_cores);
184 zfree(&env->sibling_threads);
185 zfree(&env->numa_nodes);
186 zfree(&env->pmu_mappings);
03cd2094
NK		 187}
188
316c7136 189void perf_session__delete(struct perf_session *session)
94c744b6 190{
c446870d 191 auxtrace__free(session);
99fa2984 192 auxtrace_index__free(&session->auxtrace_index);
316c7136 193 perf_session__destroy_kernel_maps(session);
316c7136
ACM		 194 perf_session__delete_threads(session);
195 perf_session_env__delete(&session->header.env);
196 machines__exit(&session->machines);
197 if (session->file)
198 perf_data_file__close(session->file);
199 free(session);
94c744b6 200}
a328626b 201
47c3d109
AH		 202static int process_event_synth_tracing_data_stub(struct perf_tool *tool
203 __maybe_unused,
204 union perf_event *event
1d037ca1
IT		 205 __maybe_unused,
206 struct perf_session *session
207 __maybe_unused)
d20deb64
ACM		 208{
209 dump_printf(": unhandled!\n");
210 return 0;
211}
212
47c3d109
AH		 213static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused,
214 union perf_event *event __maybe_unused,
1d037ca1
IT		 215 struct perf_evlist **pevlist
216 __maybe_unused)
10d0f086
ACM		 217{
218 dump_printf(": unhandled!\n");
219 return 0;
220}
221
1d037ca1
IT		 222static 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)
9e69c210
ACM		 227{
228 dump_printf(": unhandled!\n");
229 return 0;
230}
231
1d037ca1
IT		 232static 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)
06aae590
ACM		 236{
237 dump_printf(": unhandled!\n");
238 return 0;
239}
240
d704ebda
ACM		 241static 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)
244{
245 dump_printf(": unhandled!\n");
246 return 0;
247}
248
1d037ca1
IT		 249static int process_finished_round_stub(struct perf_tool *tool __maybe_unused,
250 union perf_event *event __maybe_unused,
d704ebda 251 struct ordered_events *oe __maybe_unused)
743eb868
ACM		 252{
253 dump_printf(": unhandled!\n");
254 return 0;
255}
256
45694aa7 257static int process_finished_round(struct perf_tool *tool,
d20deb64 258 union perf_event *event,
d704ebda 259 struct ordered_events *oe);
d6b17beb 260
3c659eed
AH		 261static int process_id_index_stub(struct perf_tool *tool __maybe_unused,
262 union perf_event *event __maybe_unused,
263 struct perf_session *perf_session
264 __maybe_unused)
265{
266 dump_printf(": unhandled!\n");
267 return 0;
268}
269
a16ac023
AH		 270static 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)
273{
274 dump_printf(": unhandled!\n");
275 return 0;
276}
277
278static int skipn(int fd, off_t n)
279{
280 char buf[4096];
281 ssize_t ret;
282
283 while (n > 0) {
284 ret = read(fd, buf, min(n, (off_t)sizeof(buf)));
285 if (ret <= 0)
286 return ret;
287 n -= ret;
288 }
289
290 return 0;
291}
292
293static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused,
294 union perf_event *event,
295 struct perf_session *session
296 __maybe_unused)
297{
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;
302}
303
e9bf54d2
AH		 304static
305int 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)
308{
309 dump_printf(": unhandled!\n");
310 return 0;
311}
312
9c501402 313void perf_tool__fill_defaults(struct perf_tool *tool)
06aae590 314{
45694aa7
ACM		 315 if (tool->sample == NULL)
316 tool->sample = process_event_sample_stub;
317 if (tool->mmap == NULL)
318 tool->mmap = process_event_stub;
6adb0b0a
DA		 319 if (tool->mmap2 == NULL)
320 tool->mmap2 = process_event_stub;
45694aa7
ACM		 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;
c4937a91
KL		 329 if (tool->lost_samples == NULL)
330 tool->lost_samples = perf_event__process_lost_samples;
4a96f7a0
AH		 331 if (tool->aux == NULL)
332 tool->aux = perf_event__process_aux;
0ad21f68
AH		 333 if (tool->itrace_start == NULL)
334 tool->itrace_start = perf_event__process_itrace_start;
45694aa7
ACM		 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;
45694aa7
ACM		 343 if (tool->tracing_data == NULL)
344 tool->tracing_data = process_event_synth_tracing_data_stub;
345 if (tool->build_id == NULL)
d704ebda 346 tool->build_id = process_build_id_stub;
45694aa7 347 if (tool->finished_round == NULL) {
0a8cb85c 348 if (tool->ordered_events)
45694aa7 349 tool->finished_round = process_finished_round;
d6b17beb 350 else
45694aa7 351 tool->finished_round = process_finished_round_stub;
d6b17beb 352 }
3c659eed
AH		 353 if (tool->id_index == NULL)
354 tool->id_index = process_id_index_stub;
a16ac023
AH		 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;
e9bf54d2
AH		 359 if (tool->auxtrace_error == NULL)
360 tool->auxtrace_error = process_event_auxtrace_error_stub;
06aae590 361}
48000a1a 362
268fb20f
JO		 363static void swap_sample_id_all(union perf_event *event, void *data)
364{
365 void *end = (void *) event + event->header.size;
366 int size = end - data;
367
368 BUG_ON(size % sizeof(u64));
369 mem_bswap_64(data, size);
370}
371
372static void perf_event__all64_swap(union perf_event *event,
1d037ca1 373 bool sample_id_all __maybe_unused)
ba21594c 374{
8115d60c
ACM		 375 struct perf_event_header *hdr = &event->header;
376 mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr));
ba21594c
ACM		 377}
378
268fb20f 379static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
ba21594c 380{
8115d60c
ACM		 381 event->comm.pid = bswap_32(event->comm.pid);
382 event->comm.tid = bswap_32(event->comm.tid);
268fb20f
JO		 383
384 if (sample_id_all) {
385 void *data = &event->comm.comm;
386
9ac3e487 387 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 388 swap_sample_id_all(event, data);
389 }
ba21594c
ACM		 390}
391
268fb20f
JO		 392static void perf_event__mmap_swap(union perf_event *event,
393 bool sample_id_all)
ba21594c 394{
8115d60c
ACM		 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);
268fb20f
JO		 400
401 if (sample_id_all) {
402 void *data = &event->mmap.filename;
403
9ac3e487 404 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 405 swap_sample_id_all(event, data);
406 }
ba21594c
ACM		 407}
408
5c5e854b
SE		 409static void perf_event__mmap2_swap(union perf_event *event,
410 bool sample_id_all)
411{
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);
420
421 if (sample_id_all) {
422 void *data = &event->mmap2.filename;
423
424 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
425 swap_sample_id_all(event, data);
426 }
427}
268fb20f 428static void perf_event__task_swap(union perf_event *event, bool sample_id_all)
ba21594c 429{
8115d60c
ACM		 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);
268fb20f
JO		 435
436 if (sample_id_all)
437 swap_sample_id_all(event, &event->fork + 1);
ba21594c
ACM		 438}
439
268fb20f 440static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
ba21594c 441{
8115d60c
ACM		 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);
268fb20f
JO		 448
449 if (sample_id_all)
450 swap_sample_id_all(event, &event->read + 1);
ba21594c
ACM		 451}
452
4a96f7a0
AH		 453static void perf_event__aux_swap(union perf_event *event, bool sample_id_all)
454{
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);
458
459 if (sample_id_all)
460 swap_sample_id_all(event, &event->aux + 1);
461}
462
0ad21f68
AH		 463static void perf_event__itrace_start_swap(union perf_event *event,
464 bool sample_id_all)
465{
466 event->itrace_start.pid = bswap_32(event->itrace_start.pid);
467 event->itrace_start.tid = bswap_32(event->itrace_start.tid);
468
469 if (sample_id_all)
470 swap_sample_id_all(event, &event->itrace_start + 1);
471}
472
dd96c46b
JO		 473static void perf_event__throttle_swap(union perf_event *event,
474 bool sample_id_all)
475{
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);
479
480 if (sample_id_all)
481 swap_sample_id_all(event, &event->throttle + 1);
482}
483
e108c66e
JO		 484static u8 revbyte(u8 b)
485{
486 int rev = (b >> 4) | ((b & 0xf) << 4);
487 rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2);
488 rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1);
489 return (u8) rev;
490}
491
492/*
493 * XXX this is hack in attempt to carry flags bitfield
494 * throught endian village. ABI says:
495 *
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.
499 *
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
504 * to work for now.
505 */
506static void swap_bitfield(u8 *p, unsigned len)
507{
508 unsigned i;
509
510 for (i = 0; i < len; i++) {
511 *p = revbyte(*p);
512 p++;
513 }
514}
515
eda3913b
DA		 516/* exported for swapping attributes in file header */
517void perf_event__attr_swap(struct perf_event_attr *attr)
518{
519 attr->type = bswap_32(attr->type);
520 attr->size = bswap_32(attr->size);
b30b6172
WN		 521
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) \
526do { \
527 if (bswap_safe(f, 0)) \
528 attr->f = bswap_##sz(attr->f); \
529} while(0)
530#define bswap_field_32(f) bswap_field(f, 32)
531#define bswap_field_64(f) bswap_field(f, 64)
532
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);
545
546 /*
547 * After read_format are bitfields. Check read_format because
548 * we are unable to use offsetof on bitfield.
549 */
550 if (bswap_safe(read_format, 1))
551 swap_bitfield((u8 *) (&attr->read_format + 1),
552 sizeof(u64));
553#undef bswap_field_64
554#undef bswap_field_32
555#undef bswap_field
556#undef bswap_safe
eda3913b
DA		 557}
558
268fb20f 559static void perf_event__hdr_attr_swap(union perf_event *event,
1d037ca1 560 bool sample_id_all __maybe_unused)
2c46dbb5
TZ		 561{
562 size_t size;
563
eda3913b 564 perf_event__attr_swap(&event->attr.attr);
2c46dbb5 565
8115d60c
ACM		 566 size = event->header.size;
567 size -= (void *)&event->attr.id - (void *)event;
568 mem_bswap_64(event->attr.id, size);
2c46dbb5
TZ		 569}
570
268fb20f 571static void perf_event__event_type_swap(union perf_event *event,
1d037ca1 572 bool sample_id_all __maybe_unused)
cd19a035 573{
8115d60c
ACM		 574 event->event_type.event_type.event_id =
575 bswap_64(event->event_type.event_type.event_id);
cd19a035
TZ		 576}
577
268fb20f 578static void perf_event__tracing_data_swap(union perf_event *event,
1d037ca1 579 bool sample_id_all __maybe_unused)
9215545e 580{
8115d60c 581 event->tracing_data.size = bswap_32(event->tracing_data.size);
9215545e
TZ		 582}
583
a16ac023
AH		 584static void perf_event__auxtrace_info_swap(union perf_event *event,
585 bool sample_id_all __maybe_unused)
586{
587 size_t size;
588
589 event->auxtrace_info.type = bswap_32(event->auxtrace_info.type);
590
591 size = event->header.size;
592 size -= (void *)&event->auxtrace_info.priv - (void *)event;
593 mem_bswap_64(event->auxtrace_info.priv, size);
594}
595
596static void perf_event__auxtrace_swap(union perf_event *event,
597 bool sample_id_all __maybe_unused)
598{
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);
605}
606
e9bf54d2
AH		 607static void perf_event__auxtrace_error_swap(union perf_event *event,
608 bool sample_id_all __maybe_unused)
609{
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);
616}
617
268fb20f
JO		 618typedef void (*perf_event__swap_op)(union perf_event *event,
619 bool sample_id_all);
ba21594c 620
8115d60c
ACM		 621static perf_event__swap_op perf_event__swap_ops[] = {
622 [PERF_RECORD_MMAP] = perf_event__mmap_swap,
5c5e854b 623 [PERF_RECORD_MMAP2] = perf_event__mmap2_swap,
8115d60c
ACM		 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,
dd96c46b
JO		 629 [PERF_RECORD_THROTTLE] = perf_event__throttle_swap,
630 [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap,
8115d60c 631 [PERF_RECORD_SAMPLE] = perf_event__all64_swap,
4a96f7a0 632 [PERF_RECORD_AUX] = perf_event__aux_swap,
0ad21f68 633 [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
c4937a91 634 [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
eda3913b 635 [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
8115d60c
ACM		 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,
3c659eed 639 [PERF_RECORD_ID_INDEX] = perf_event__all64_swap,
a16ac023
AH		 640 [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap,
641 [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap,
e9bf54d2 642 [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap,
8115d60c 643 [PERF_RECORD_HEADER_MAX] = NULL,
ba21594c
ACM		 644};
645
d6b17beb
FW		 646/*
647 * When perf record finishes a pass on every buffers, it records this pseudo
648 * event.
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.
655 *
656 * ============ PASS n =================
657 * CPU 0 | CPU 1
658 * |
659 * cnt1 timestamps | cnt2 timestamps
660 * 1 | 2
661 * 2 | 3
662 * - | 4 <--- max recorded
663 *
664 * ============ PASS n + 1 ==============
665 * CPU 0 | CPU 1
666 * |
667 * cnt1 timestamps | cnt2 timestamps
668 * 3 | 5
669 * 4 | 6
670 * 5 | 7 <---- max recorded
671 *
672 * Flush every events below timestamp 4
673 *
674 * ============ PASS n + 2 ==============
675 * CPU 0 | CPU 1
676 * |
677 * cnt1 timestamps | cnt2 timestamps
678 * 6 | 8
679 * 7 | 9
680 * - | 10
681 *
682 * Flush every events below timestamp 7
683 * etc...
684 */
b7b61cbe 685static int process_finished_round(struct perf_tool *tool __maybe_unused,
1d037ca1 686 union perf_event *event __maybe_unused,
d704ebda 687 struct ordered_events *oe)
d6b17beb 688{
b7b61cbe 689 return ordered_events__flush(oe, OE_FLUSH__ROUND);
d6b17beb
FW		 690}
691
b7b61cbe
ACM		 692int perf_session__queue_event(struct perf_session *s, union perf_event *event,
693 struct perf_sample *sample, u64 file_offset)
c61e52ee 694{
4a6b362f 695 return ordered_events__queue(&s->ordered_events, event, sample, file_offset);
640c03ce 696}
c61e52ee 697
384b6055 698static void callchain__lbr_callstack_printf(struct perf_sample *sample)
640c03ce 699{
384b6055
KL		 700 struct ip_callchain *callchain = sample->callchain;
701 struct branch_stack *lbr_stack = sample->branch_stack;
702 u64 kernel_callchain_nr = callchain->nr;
640c03ce 703 unsigned int i;
c61e52ee 704
384b6055
KL		 705 for (i = 0; i < kernel_callchain_nr; i++) {
706 if (callchain->ips[i] == PERF_CONTEXT_USER)
707 break;
708 }
709
710 if ((i != kernel_callchain_nr) && lbr_stack->nr) {
711 u64 total_nr;
712 /*
713 * LBR callstack can only get user call chain,
714 * i is kernel call chain number,
715 * 1 is PERF_CONTEXT_USER.
716 *
717 * The user call chain is stored in LBR registers.
718 * LBR are pair registers. The caller is stored
719 * in "from" register, while the callee is stored
720 * in "to" register.
721 * For example, there is a call stack
722 * "A"->"B"->"C"->"D".
723 * The LBR registers will recorde like
724 * "C"->"D", "B"->"C", "A"->"B".
725 * So only the first "to" register and all "from"
726 * registers are needed to construct the whole stack.
727 */
728 total_nr = i + 1 + lbr_stack->nr + 1;
729 kernel_callchain_nr = i + 1;
730
731 printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr);
732
733 for (i = 0; i < kernel_callchain_nr; i++)
734 printf("..... %2d: %016" PRIx64 "\n",
735 i, callchain->ips[i]);
736
737 printf("..... %2d: %016" PRIx64 "\n",
738 (int)(kernel_callchain_nr), lbr_stack->entries[0].to);
739 for (i = 0; i < lbr_stack->nr; i++)
740 printf("..... %2d: %016" PRIx64 "\n",
741 (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from);
742 }
743}
744
745static void callchain__printf(struct perf_evsel *evsel,
746 struct perf_sample *sample)
747{
748 unsigned int i;
749 struct ip_callchain *callchain = sample->callchain;
750
751 if (has_branch_callstack(evsel))
752 callchain__lbr_callstack_printf(sample);
753
754 printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr);
640c03ce 755
384b6055 756 for (i = 0; i < callchain->nr; i++)
9486aa38 757 printf("..... %2d: %016" PRIx64 "\n",
384b6055 758 i, callchain->ips[i]);
c61e52ee
FW		 759}
760
b5387528
RAV		 761static void branch_stack__printf(struct perf_sample *sample)
762{
763 uint64_t i;
764
765 printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
766
767 for (i = 0; i < sample->branch_stack->nr; i++)
768 printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n",
769 i, sample->branch_stack->entries[i].from,
770 sample->branch_stack->entries[i].to);
771}
772
0f6a3015
JO		 773static void regs_dump__printf(u64 mask, u64 *regs)
774{
775 unsigned rid, i = 0;
776
777 for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) {
778 u64 val = regs[i++];
779
780 printf(".... %-5s 0x%" PRIx64 "\n",
781 perf_reg_name(rid), val);
782 }
783}
784
6a21c0b5
SE		 785static const char *regs_abi[] = {
786 [PERF_SAMPLE_REGS_ABI_NONE] = "none",
787 [PERF_SAMPLE_REGS_ABI_32] = "32-bit",
788 [PERF_SAMPLE_REGS_ABI_64] = "64-bit",
789};
790
791static inline const char *regs_dump_abi(struct regs_dump *d)
792{
793 if (d->abi > PERF_SAMPLE_REGS_ABI_64)
794 return "unknown";
795
796 return regs_abi[d->abi];
797}
798
799static void regs__printf(const char *type, struct regs_dump *regs)
800{
801 u64 mask = regs->mask;
802
803 printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n",
804 type,
805 mask,
806 regs_dump_abi(regs));
807
808 regs_dump__printf(mask, regs->regs);
809}
810
352ea45a 811static void regs_user__printf(struct perf_sample *sample)
0f6a3015
JO		 812{
813 struct regs_dump *user_regs = &sample->user_regs;
814
6a21c0b5
SE		 815 if (user_regs->regs)
816 regs__printf("user", user_regs);
817}
818
819static void regs_intr__printf(struct perf_sample *sample)
820{
821 struct regs_dump *intr_regs = &sample->intr_regs;
822
823 if (intr_regs->regs)
824 regs__printf("intr", intr_regs);
0f6a3015
JO		 825}
826
827static void stack_user__printf(struct stack_dump *dump)
828{
829 printf("... ustack: size %" PRIu64 ", offset 0x%x\n",
830 dump->size, dump->offset);
831}
832
9fa8727a 833static void perf_evlist__print_tstamp(struct perf_evlist *evlist,
8115d60c 834 union perf_event *event,
8d50e5b4 835 struct perf_sample *sample)
9c90a61c 836{
9fa8727a 837 u64 sample_type = __perf_evlist__combined_sample_type(evlist);
7f3be652 838
9c90a61c 839 if (event->header.type != PERF_RECORD_SAMPLE &&
9fa8727a 840 !perf_evlist__sample_id_all(evlist)) {
9c90a61c
ACM		 841 fputs("-1 -1 ", stdout);
842 return;
843 }
844
7f3be652 845 if ((sample_type & PERF_SAMPLE_CPU))
9c90a61c
ACM		 846 printf("%u ", sample->cpu);
847
7f3be652 848 if (sample_type & PERF_SAMPLE_TIME)
9486aa38 849 printf("%" PRIu64 " ", sample->time);
9c90a61c
ACM		 850}
851
9ede473c
JO		 852static void sample_read__printf(struct perf_sample *sample, u64 read_format)
853{
854 printf("... sample_read:\n");
855
856 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
857 printf("...... time enabled %016" PRIx64 "\n",
858 sample->read.time_enabled);
859
860 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
861 printf("...... time running %016" PRIx64 "\n",
862 sample->read.time_running);
863
864 if (read_format & PERF_FORMAT_GROUP) {
865 u64 i;
866
867 printf(".... group nr %" PRIu64 "\n", sample->read.group.nr);
868
869 for (i = 0; i < sample->read.group.nr; i++) {
870 struct sample_read_value *value;
871
872 value = &sample->read.group.values[i];
873 printf("..... id %016" PRIx64
874 ", value %016" PRIx64 "\n",
875 value->id, value->value);
876 }
877 } else
878 printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n",
879 sample->read.one.id, sample->read.one.value);
880}
881
9fa8727a 882static void dump_event(struct perf_evlist *evlist, union perf_event *event,
8d50e5b4 883 u64 file_offset, struct perf_sample *sample)
9aefcab0
TG		 884{
885 if (!dump_trace)
886 return;
887
9486aa38
ACM		 888 printf("\n%#" PRIx64 " [%#x]: event: %d\n",
889 file_offset, event->header.size, event->header.type);
9aefcab0
TG		 890
891 trace_event(event);
892
893 if (sample)
9fa8727a 894 perf_evlist__print_tstamp(evlist, event, sample);
9aefcab0 895
9486aa38 896 printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset,
8115d60c 897 event->header.size, perf_event__name(event->header.type));
9aefcab0
TG		 898}
899
0f6a3015 900static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
8d50e5b4 901 struct perf_sample *sample)
9aefcab0 902{
7f3be652
ACM		 903 u64 sample_type;
904
ddbc24b7
ACM		 905 if (!dump_trace)
906 return;
907
0ea590ae 908 printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
9486aa38 909 event->header.misc, sample->pid, sample->tid, sample->ip,
7cec0922 910 sample->period, sample->addr);
9aefcab0 911
0f6a3015 912 sample_type = evsel->attr.sample_type;
7f3be652
ACM		 913
914 if (sample_type & PERF_SAMPLE_CALLCHAIN)
384b6055 915 callchain__printf(evsel, sample);
b5387528 916
384b6055 917 if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel))
b5387528 918 branch_stack__printf(sample);
0f6a3015
JO		 919
920 if (sample_type & PERF_SAMPLE_REGS_USER)
352ea45a 921 regs_user__printf(sample);
0f6a3015 922
6a21c0b5
SE		 923 if (sample_type & PERF_SAMPLE_REGS_INTR)
924 regs_intr__printf(sample);
925
0f6a3015
JO		 926 if (sample_type & PERF_SAMPLE_STACK_USER)
927 stack_user__printf(&sample->user_stack);
05484298
AK		 928
929 if (sample_type & PERF_SAMPLE_WEIGHT)
930 printf("... weight: %" PRIu64 "\n", sample->weight);
98a3b32c
SE		 931
932 if (sample_type & PERF_SAMPLE_DATA_SRC)
933 printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
9ede473c 934
475eeab9
AK		 935 if (sample_type & PERF_SAMPLE_TRANSACTION)
936 printf("... transaction: %" PRIx64 "\n", sample->transaction);
937
9ede473c
JO		 938 if (sample_type & PERF_SAMPLE_READ)
939 sample_read__printf(sample, evsel->attr.read_format);
9aefcab0
TG		 940}
941
54245fdc 942static struct machine *machines__find_for_cpumode(struct machines *machines,
ef89325f
AH		 943 union perf_event *event,
944 struct perf_sample *sample)
743eb868
ACM		 945{
946 const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
ad85ace0 947 struct machine *machine;
743eb868 948
7c0f4a41
DA		 949 if (perf_guest &&
950 ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
951 (cpumode == PERF_RECORD_MISC_GUEST_USER))) {
7fb0a5ee
ND		 952 u32 pid;
953
5c5e854b
SE		 954 if (event->header.type == PERF_RECORD_MMAP
955 || event->header.type == PERF_RECORD_MMAP2)
7fb0a5ee
ND		 956 pid = event->mmap.pid;
957 else
ef89325f 958 pid = sample->pid;
7fb0a5ee 959
54245fdc 960 machine = machines__find(machines, pid);
ad85ace0 961 if (!machine)
54245fdc 962 machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID);
ad85ace0 963 return machine;
7fb0a5ee 964 }
743eb868 965
54245fdc 966 return &machines->host;
743eb868
ACM		 967}
968
313e53b0 969static int deliver_sample_value(struct perf_evlist *evlist,
e4caec0d
JO		 970 struct perf_tool *tool,
971 union perf_event *event,
972 struct perf_sample *sample,
973 struct sample_read_value *v,
974 struct machine *machine)
975{
313e53b0 976 struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id);
e4caec0d 977
e4caec0d
JO		 978 if (sid) {
979 sample->id = v->id;
980 sample->period = v->value - sid->period;
981 sid->period = v->value;
982 }
983
984 if (!sid || sid->evsel == NULL) {
313e53b0 985 ++evlist->stats.nr_unknown_id;
e4caec0d
JO		 986 return 0;
987 }
988
989 return tool->sample(tool, event, sample, sid->evsel, machine);
990}
991
313e53b0 992static int deliver_sample_group(struct perf_evlist *evlist,
e4caec0d
JO		 993 struct perf_tool *tool,
994 union perf_event *event,
995 struct perf_sample *sample,
996 struct machine *machine)
997{
998 int ret = -EINVAL;
999 u64 i;
1000
1001 for (i = 0; i < sample->read.group.nr; i++) {
313e53b0 1002 ret = deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1003 &sample->read.group.values[i],
1004 machine);
1005 if (ret)
1006 break;
1007 }
1008
1009 return ret;
1010}
1011
1012static int
313e53b0 1013 perf_evlist__deliver_sample(struct perf_evlist *evlist,
e4caec0d
JO		 1014 struct perf_tool *tool,
1015 union perf_event *event,
1016 struct perf_sample *sample,
1017 struct perf_evsel *evsel,
1018 struct machine *machine)
1019{
1020 /* We know evsel != NULL. */
1021 u64 sample_type = evsel->attr.sample_type;
1022 u64 read_format = evsel->attr.read_format;
1023
1024 /* Standard sample delievery. */
1025 if (!(sample_type & PERF_SAMPLE_READ))
1026 return tool->sample(tool, event, sample, evsel, machine);
1027
1028 /* For PERF_SAMPLE_READ we have either single or group mode. */
1029 if (read_format & PERF_FORMAT_GROUP)
313e53b0 1030 return deliver_sample_group(evlist, tool, event, sample,
e4caec0d
JO		 1031 machine);
1032 else
313e53b0 1033 return deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1034 &sample->read.one, machine);
1035}
1036
d10eb1eb
ACM		 1037static int machines__deliver_event(struct machines *machines,
1038 struct perf_evlist *evlist,
1039 union perf_event *event,
1040 struct perf_sample *sample,
1041 struct perf_tool *tool, u64 file_offset)
cbf41645 1042{
9e69c210 1043 struct perf_evsel *evsel;
743eb868 1044 struct machine *machine;
9e69c210 1045
9fa8727a 1046 dump_event(evlist, event, file_offset, sample);
532e7269 1047
313e53b0 1048 evsel = perf_evlist__id2evsel(evlist, sample->id);
7b27509f 1049
fa713a4e 1050 machine = machines__find_for_cpumode(machines, event, sample);
743eb868 1051
cbf41645
TG		 1052 switch (event->header.type) {
1053 case PERF_RECORD_SAMPLE:
0f6a3015 1054 dump_sample(evsel, event, sample);
9e69c210 1055 if (evsel == NULL) {
313e53b0 1056 ++evlist->stats.nr_unknown_id;
6782206b 1057 return 0;
9e69c210 1058 }
0c095715 1059 if (machine == NULL) {
313e53b0 1060 ++evlist->stats.nr_unprocessable_samples;
6782206b 1061 return 0;
0c095715 1062 }
313e53b0 1063 return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
cbf41645 1064 case PERF_RECORD_MMAP:
45694aa7 1065 return tool->mmap(tool, event, sample, machine);
5c5e854b 1066 case PERF_RECORD_MMAP2:
930e6fcd
KL		 1067 if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT)
1068 ++evlist->stats.nr_proc_map_timeout;
5c5e854b 1069 return tool->mmap2(tool, event, sample, machine);
cbf41645 1070 case PERF_RECORD_COMM:
45694aa7 1071 return tool->comm(tool, event, sample, machine);
cbf41645 1072 case PERF_RECORD_FORK:
45694aa7 1073 return tool->fork(tool, event, sample, machine);
cbf41645 1074 case PERF_RECORD_EXIT:
45694aa7 1075 return tool->exit(tool, event, sample, machine);
cbf41645 1076 case PERF_RECORD_LOST:
45694aa7 1077 if (tool->lost == perf_event__process_lost)
313e53b0 1078 evlist->stats.total_lost += event->lost.lost;
45694aa7 1079 return tool->lost(tool, event, sample, machine);
c4937a91
KL		 1080 case PERF_RECORD_LOST_SAMPLES:
1081 if (tool->lost_samples == perf_event__process_lost_samples)
1082 evlist->stats.total_lost_samples += event->lost_samples.lost;
1083 return tool->lost_samples(tool, event, sample, machine);
cbf41645 1084 case PERF_RECORD_READ:
45694aa7 1085 return tool->read(tool, event, sample, evsel, machine);
cbf41645 1086 case PERF_RECORD_THROTTLE:
45694aa7 1087 return tool->throttle(tool, event, sample, machine);
cbf41645 1088 case PERF_RECORD_UNTHROTTLE:
45694aa7 1089 return tool->unthrottle(tool, event, sample, machine);
4a96f7a0
AH		 1090 case PERF_RECORD_AUX:
1091 return tool->aux(tool, event, sample, machine);
0ad21f68
AH		 1092 case PERF_RECORD_ITRACE_START:
1093 return tool->itrace_start(tool, event, sample, machine);
cbf41645 1094 default:
313e53b0 1095 ++evlist->stats.nr_unknown_events;
cbf41645
TG		 1096 return -1;
1097 }
1098}
1099
c446870d
AH		 1100static int perf_session__deliver_event(struct perf_session *session,
1101 union perf_event *event,
1102 struct perf_sample *sample,
1103 struct perf_tool *tool,
1104 u64 file_offset)
1105{
1106 int ret;
1107
1108 ret = auxtrace__process_event(session, event, sample, tool);
1109 if (ret < 0)
1110 return ret;
1111 if (ret > 0)
1112 return 0;
1113
1114 return machines__deliver_event(&session->machines, session->evlist,
1115 event, sample, tool, file_offset);
1116}
1117
d5652d86
AH		 1118static s64 perf_session__process_user_event(struct perf_session *session,
1119 union perf_event *event,
d5652d86 1120 u64 file_offset)
06aae590 1121{
d704ebda 1122 struct ordered_events *oe = &session->ordered_events;
9870d780 1123 struct perf_tool *tool = session->tool;
cc9784bd 1124 int fd = perf_data_file__fd(session->file);
10d0f086
ACM		 1125 int err;
1126
9fa8727a 1127 dump_event(session->evlist, event, file_offset, NULL);
06aae590 1128
cbf41645 1129 /* These events are processed right away */
06aae590 1130 switch (event->header.type) {
2c46dbb5 1131 case PERF_RECORD_HEADER_ATTR:
47c3d109 1132 err = tool->attr(tool, event, &session->evlist);
cfe1c414 1133 if (err == 0) {
7b56cce2 1134 perf_session__set_id_hdr_size(session);
cfe1c414
AH		 1135 perf_session__set_comm_exec(session);
1136 }
10d0f086 1137 return err;
f67697bd
JO		 1138 case PERF_RECORD_HEADER_EVENT_TYPE:
1139 /*
1140 * Depreceated, but we need to handle it for sake
1141 * of old data files create in pipe mode.
1142 */
1143 return 0;
9215545e
TZ		 1144 case PERF_RECORD_HEADER_TRACING_DATA:
1145 /* setup for reading amidst mmap */
cc9784bd 1146 lseek(fd, file_offset, SEEK_SET);
47c3d109 1147 return tool->tracing_data(tool, event, session);
c7929e47 1148 case PERF_RECORD_HEADER_BUILD_ID:
45694aa7 1149 return tool->build_id(tool, event, session);
d6b17beb 1150 case PERF_RECORD_FINISHED_ROUND:
d704ebda 1151 return tool->finished_round(tool, event, oe);
3c659eed
AH		 1152 case PERF_RECORD_ID_INDEX:
1153 return tool->id_index(tool, event, session);
a16ac023
AH		 1154 case PERF_RECORD_AUXTRACE_INFO:
1155 return tool->auxtrace_info(tool, event, session);
1156 case PERF_RECORD_AUXTRACE:
1157 /* setup for reading amidst mmap */
1158 lseek(fd, file_offset + event->header.size, SEEK_SET);
1159 return tool->auxtrace(tool, event, session);
e9bf54d2 1160 case PERF_RECORD_AUXTRACE_ERROR:
85ed4729 1161 perf_session__auxtrace_error_inc(session, event);
e9bf54d2 1162 return tool->auxtrace_error(tool, event, session);
06aae590 1163 default:
ba74f064 1164 return -EINVAL;
06aae590 1165 }
ba74f064
TG		 1166}
1167
a293829d
AH		 1168int perf_session__deliver_synth_event(struct perf_session *session,
1169 union perf_event *event,
b7b61cbe 1170 struct perf_sample *sample)
a293829d 1171{
fa713a4e 1172 struct perf_evlist *evlist = session->evlist;
9870d780 1173 struct perf_tool *tool = session->tool;
fa713a4e
ACM		 1174
1175 events_stats__inc(&evlist->stats, event->header.type);
a293829d
AH		 1176
1177 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1178 return perf_session__process_user_event(session, event, 0);
a293829d 1179
fa713a4e 1180 return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0);
a293829d
AH		 1181}
1182
268fb20f
JO		 1183static void event_swap(union perf_event *event, bool sample_id_all)
1184{
1185 perf_event__swap_op swap;
1186
1187 swap = perf_event__swap_ops[event->header.type];
1188 if (swap)
1189 swap(event, sample_id_all);
1190}
1191
5a52f33a
AH		 1192int perf_session__peek_event(struct perf_session *session, off_t file_offset,
1193 void *buf, size_t buf_sz,
1194 union perf_event **event_ptr,
1195 struct perf_sample *sample)
1196{
1197 union perf_event *event;
1198 size_t hdr_sz, rest;
1199 int fd;
1200
1201 if (session->one_mmap && !session->header.needs_swap) {
1202 event = file_offset - session->one_mmap_offset +
1203 session->one_mmap_addr;
1204 goto out_parse_sample;
1205 }
1206
1207 if (perf_data_file__is_pipe(session->file))
1208 return -1;
1209
1210 fd = perf_data_file__fd(session->file);
1211 hdr_sz = sizeof(struct perf_event_header);
1212
1213 if (buf_sz < hdr_sz)
1214 return -1;
1215
1216 if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 ||
554e92ed 1217 readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz)
5a52f33a
AH		 1218 return -1;
1219
1220 event = (union perf_event *)buf;
1221
1222 if (session->header.needs_swap)
1223 perf_event_header__bswap(&event->header);
1224
554e92ed 1225 if (event->header.size < hdr_sz || event->header.size > buf_sz)
5a52f33a
AH		 1226 return -1;
1227
1228 rest = event->header.size - hdr_sz;
1229
554e92ed 1230 if (readn(fd, buf, rest) != (ssize_t)rest)
5a52f33a
AH		 1231 return -1;
1232
1233 if (session->header.needs_swap)
1234 event_swap(event, perf_evlist__sample_id_all(session->evlist));
1235
1236out_parse_sample:
1237
1238 if (sample && event->header.type < PERF_RECORD_USER_TYPE_START &&
1239 perf_evlist__parse_sample(session->evlist, event, sample))
1240 return -1;
1241
1242 *event_ptr = event;
1243
1244 return 0;
1245}
1246
d5652d86 1247static s64 perf_session__process_event(struct perf_session *session,
b7b61cbe 1248 union perf_event *event, u64 file_offset)
ba74f064 1249{
313e53b0 1250 struct perf_evlist *evlist = session->evlist;
9870d780 1251 struct perf_tool *tool = session->tool;
8d50e5b4 1252 struct perf_sample sample;
ba74f064
TG		 1253 int ret;
1254
268fb20f 1255 if (session->header.needs_swap)
313e53b0 1256 event_swap(event, perf_evlist__sample_id_all(evlist));
ba74f064
TG		 1257
1258 if (event->header.type >= PERF_RECORD_HEADER_MAX)
1259 return -EINVAL;
1260
313e53b0 1261 events_stats__inc(&evlist->stats, event->header.type);
ba74f064
TG		 1262
1263 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1264 return perf_session__process_user_event(session, event, file_offset);
cbf41645 1265
3dfc2c0a
TG		 1266 /*
1267 * For all kernel events we get the sample data
1268 */
313e53b0 1269 ret = perf_evlist__parse_sample(evlist, event, &sample);
5538beca
FW		 1270 if (ret)
1271 return ret;
3dfc2c0a 1272
0a8cb85c 1273 if (tool->ordered_events) {
b7b61cbe 1274 ret = perf_session__queue_event(session, event, &sample, file_offset);
cbf41645
TG		 1275 if (ret != -ETIME)
1276 return ret;
1277 }
1278
c446870d
AH		 1279 return perf_session__deliver_event(session, event, &sample, tool,
1280 file_offset);
06aae590
ACM		 1281}
1282
316c7136 1283void perf_event_header__bswap(struct perf_event_header *hdr)
ba21594c 1284{
316c7136
ACM		 1285 hdr->type = bswap_32(hdr->type);
1286 hdr->misc = bswap_16(hdr->misc);
1287 hdr->size = bswap_16(hdr->size);
ba21594c
ACM		 1288}
1289
b424eba2
ACM		 1290struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
1291{
1fcb8768 1292 return machine__findnew_thread(&session->machines.host, -1, pid);
b424eba2
ACM		 1293}
1294
316c7136 1295static struct thread *perf_session__register_idle_thread(struct perf_session *session)
06aae590 1296{
1fcb8768 1297 struct thread *thread;
06aae590 1298
1fcb8768 1299 thread = machine__findnew_thread(&session->machines.host, 0, 0);
162f0bef 1300 if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
06aae590
ACM		 1301 pr_err("problem inserting idle task.\n");
1302 thread = NULL;
1303 }
1304
1305 return thread;
1306}
1307
9870d780 1308static void perf_session__warn_about_errors(const struct perf_session *session)
11095994 1309{
9870d780
ACM		 1310 const struct events_stats *stats = &session->evlist->stats;
1311 const struct ordered_events *oe = &session->ordered_events;
1312
1313 if (session->tool->lost == perf_event__process_lost &&
ccda068f 1314 stats->nr_events[PERF_RECORD_LOST] != 0) {
7b27509f
ACM		 1315 ui__warning("Processed %d events and lost %d chunks!\n\n"
1316 "Check IO/CPU overload!\n\n",
ccda068f
ACM		 1317 stats->nr_events[0],
1318 stats->nr_events[PERF_RECORD_LOST]);
11095994
ACM		 1319 }
1320
c4937a91
KL		 1321 if (session->tool->lost_samples == perf_event__process_lost_samples) {
1322 double drop_rate;
1323
1324 drop_rate = (double)stats->total_lost_samples /
1325 (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples);
1326 if (drop_rate > 0.05) {
6ba29c2f 1327 ui__warning("Processed %" PRIu64 " samples and lost %3.2f%% samples!\n\n",
c4937a91
KL		 1328 stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples,
1329 drop_rate * 100.0);
1330 }
1331 }
1332
ccda068f 1333 if (stats->nr_unknown_events != 0) {
11095994
ACM		 1334 ui__warning("Found %u unknown events!\n\n"
1335 "Is this an older tool processing a perf.data "
1336 "file generated by a more recent tool?\n\n"
1337 "If that is not the case, consider "
1338 "reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f 1339 stats->nr_unknown_events);
11095994
ACM		 1340 }
1341
ccda068f 1342 if (stats->nr_unknown_id != 0) {
9e69c210 1343 ui__warning("%u samples with id not present in the header\n",
ccda068f 1344 stats->nr_unknown_id);
9e69c210
ACM		 1345 }
1346
ccda068f 1347 if (stats->nr_invalid_chains != 0) {
75be989a
ACM		 1348 ui__warning("Found invalid callchains!\n\n"
1349 "%u out of %u events were discarded for this reason.\n\n"
1350 "Consider reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f
ACM		 1351 stats->nr_invalid_chains,
1352 stats->nr_events[PERF_RECORD_SAMPLE]);
75be989a 1353 }
0c095715 1354
ccda068f 1355 if (stats->nr_unprocessable_samples != 0) {
0c095715
JR		 1356 ui__warning("%u unprocessable samples recorded.\n"
1357 "Do you have a KVM guest running and not using 'perf kvm'?\n",
ccda068f 1358 stats->nr_unprocessable_samples);
0c095715 1359 }
f61ff6c0 1360
9870d780
ACM		 1361 if (oe->nr_unordered_events != 0)
1362 ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events);
85ed4729
AH		 1363
1364 events_stats__auxtrace_error_warn(stats);
930e6fcd
KL		 1365
1366 if (stats->nr_proc_map_timeout != 0) {
1367 ui__warning("%d map information files for pre-existing threads were\n"
1368 "not processed, if there are samples for addresses they\n"
1369 "will not be resolved, you may find out which are these\n"
1370 "threads by running with -v and redirecting the output\n"
9d9cad76
KL		 1371 "to a file.\n"
1372 "The time limit to process proc map is too short?\n"
1373 "Increase it by --proc-map-timeout\n",
930e6fcd
KL		 1374 stats->nr_proc_map_timeout);
1375 }
11095994
ACM		 1376}
1377
a5499b37
AH		 1378static int perf_session__flush_thread_stack(struct thread *thread,
1379 void *p __maybe_unused)
1380{
1381 return thread_stack__flush(thread);
1382}
1383
1384static int perf_session__flush_thread_stacks(struct perf_session *session)
1385{
1386 return machines__for_each_thread(&session->machines,
1387 perf_session__flush_thread_stack,
1388 NULL);
1389}
1390
8dc58101
TZ		 1391volatile int session_done;
1392
b7b61cbe 1393static int __perf_session__process_pipe_events(struct perf_session *session)
8dc58101 1394{
fa713a4e 1395 struct ordered_events *oe = &session->ordered_events;
9870d780 1396 struct perf_tool *tool = session->tool;
316c7136 1397 int fd = perf_data_file__fd(session->file);
444d2866
SE		 1398 union perf_event *event;
1399 uint32_t size, cur_size = 0;
1400 void *buf = NULL;
d5652d86 1401 s64 skip = 0;
8dc58101 1402 u64 head;
727ebd54 1403 ssize_t err;
8dc58101
TZ		 1404 void *p;
1405
45694aa7 1406 perf_tool__fill_defaults(tool);
8dc58101
TZ		 1407
1408 head = 0;
444d2866
SE		 1409 cur_size = sizeof(union perf_event);
1410
1411 buf = malloc(cur_size);
1412 if (!buf)
1413 return -errno;
8dc58101 1414more:
444d2866 1415 event = buf;
cc9784bd 1416 err = readn(fd, event, sizeof(struct perf_event_header));
8dc58101
TZ		 1417 if (err <= 0) {
1418 if (err == 0)
1419 goto done;
1420
1421 pr_err("failed to read event header\n");
1422 goto out_err;
1423 }
1424
316c7136 1425 if (session->header.needs_swap)
444d2866 1426 perf_event_header__bswap(&event->header);
8dc58101 1427
444d2866 1428 size = event->header.size;
27389d78
AH		 1429 if (size < sizeof(struct perf_event_header)) {
1430 pr_err("bad event header size\n");
1431 goto out_err;
1432 }
8dc58101 1433
444d2866
SE		 1434 if (size > cur_size) {
1435 void *new = realloc(buf, size);
1436 if (!new) {
1437 pr_err("failed to allocate memory to read event\n");
1438 goto out_err;
1439 }
1440 buf = new;
1441 cur_size = size;
1442 event = buf;
1443 }
1444 p = event;
8dc58101
TZ		 1445 p += sizeof(struct perf_event_header);
1446
794e43b5 1447 if (size - sizeof(struct perf_event_header)) {
cc9784bd 1448 err = readn(fd, p, size - sizeof(struct perf_event_header));
794e43b5
TZ		 1449 if (err <= 0) {
1450 if (err == 0) {
1451 pr_err("unexpected end of event stream\n");
1452 goto done;
1453 }
8dc58101 1454
794e43b5
TZ		 1455 pr_err("failed to read event data\n");
1456 goto out_err;
1457 }
8dc58101
TZ		 1458 }
1459
b7b61cbe 1460 if ((skip = perf_session__process_event(session, event, head)) < 0) {
9389a460 1461 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
444d2866 1462 head, event->header.size, event->header.type);
9389a460
JO		 1463 err = -EINVAL;
1464 goto out_err;
8dc58101
TZ		 1465 }
1466
1467 head += size;
1468
8dc58101
TZ		 1469 if (skip > 0)
1470 head += skip;
1471
1472 if (!session_done())
1473 goto more;
1474done:
8c16b649 1475 /* do the final flush for ordered samples */
b7b61cbe 1476 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1477 if (err)
1478 goto out_err;
1479 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1480 if (err)
1481 goto out_err;
1482 err = perf_session__flush_thread_stacks(session);
8dc58101 1483out_err:
444d2866 1484 free(buf);
9870d780 1485 perf_session__warn_about_errors(session);
adc56ed1 1486 ordered_events__free(&session->ordered_events);
c446870d 1487 auxtrace__free_events(session);
8dc58101
TZ		 1488 return err;
1489}
1490
998bedc8
FW		 1491static union perf_event *
1492fetch_mmaped_event(struct perf_session *session,
1493 u64 head, size_t mmap_size, char *buf)
1494{
1495 union perf_event *event;
1496
1497 /*
1498 * Ensure we have enough space remaining to read
1499 * the size of the event in the headers.
1500 */
1501 if (head + sizeof(event->header) > mmap_size)
1502 return NULL;
1503
1504 event = (union perf_event *)(buf + head);
1505
1506 if (session->header.needs_swap)
1507 perf_event_header__bswap(&event->header);
1508
27389d78
AH		 1509 if (head + event->header.size > mmap_size) {
1510 /* We're not fetching the event so swap back again */
1511 if (session->header.needs_swap)
1512 perf_event_header__bswap(&event->header);
998bedc8 1513 return NULL;
27389d78 1514 }
998bedc8
FW		 1515
1516 return event;
1517}
1518
35d48ddf
DM		 1519/*
1520 * On 64bit we can mmap the data file in one go. No need for tiny mmap
1521 * slices. On 32bit we use 32MB.
1522 */
1523#if BITS_PER_LONG == 64
1524#define MMAP_SIZE ULLONG_MAX
1525#define NUM_MMAPS 1
1526#else
1527#define MMAP_SIZE (32 * 1024 * 1024ULL)
1528#define NUM_MMAPS 128
1529#endif
1530
4ac30cf7
NK		 1531static int __perf_session__process_events(struct perf_session *session,
1532 u64 data_offset, u64 data_size,
b7b61cbe 1533 u64 file_size)
06aae590 1534{
fa713a4e 1535 struct ordered_events *oe = &session->ordered_events;
9870d780 1536 struct perf_tool *tool = session->tool;
cc9784bd 1537 int fd = perf_data_file__fd(session->file);
d5652d86 1538 u64 head, page_offset, file_offset, file_pos, size;
fe174207 1539 int err, mmap_prot, mmap_flags, map_idx = 0;
0c1fe6b2 1540 size_t mmap_size;
35d48ddf 1541 char *buf, *mmaps[NUM_MMAPS];
8115d60c 1542 union perf_event *event;
4d3001fd 1543 struct ui_progress prog;
d5652d86 1544 s64 skip;
0331ee0c 1545
45694aa7 1546 perf_tool__fill_defaults(tool);
06aae590 1547
0331ee0c
TG		 1548 page_offset = page_size * (data_offset / page_size);
1549 file_offset = page_offset;
1550 head = data_offset - page_offset;
06aae590 1551
b314e5cf 1552 if (data_size && (data_offset + data_size < file_size))
d6513281
TG		 1553 file_size = data_offset + data_size;
1554
4d3001fd 1555 ui_progress__init(&prog, file_size, "Processing events...");
55b44629 1556
35d48ddf 1557 mmap_size = MMAP_SIZE;
919d86d3 1558 if (mmap_size > file_size) {
55b44629 1559 mmap_size = file_size;
919d86d3
AH		 1560 session->one_mmap = true;
1561 }
55b44629 1562
fe174207
TG		 1563 memset(mmaps, 0, sizeof(mmaps));
1564
ba21594c
ACM		 1565 mmap_prot = PROT_READ;
1566 mmap_flags = MAP_SHARED;
1567
0331ee0c 1568 if (session->header.needs_swap) {
ba21594c
ACM		 1569 mmap_prot |= PROT_WRITE;
1570 mmap_flags = MAP_PRIVATE;
1571 }
06aae590 1572remap:
cc9784bd 1573 buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd,
55b44629 1574 file_offset);
06aae590
ACM		 1575 if (buf == MAP_FAILED) {
1576 pr_err("failed to mmap file\n");
1577 err = -errno;
1578 goto out_err;
1579 }
fe174207
TG		 1580 mmaps[map_idx] = buf;
1581 map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1);
d6513281 1582 file_pos = file_offset + head;
919d86d3
AH		 1583 if (session->one_mmap) {
1584 session->one_mmap_addr = buf;
1585 session->one_mmap_offset = file_offset;
1586 }
06aae590
ACM		 1587
1588more:
998bedc8
FW		 1589 event = fetch_mmaped_event(session, head, mmap_size, buf);
1590 if (!event) {
fe174207
TG		 1591 if (mmaps[map_idx]) {
1592 munmap(mmaps[map_idx], mmap_size);
1593 mmaps[map_idx] = NULL;
1594 }
06aae590 1595
0331ee0c
TG		 1596 page_offset = page_size * (head / page_size);
1597 file_offset += page_offset;
1598 head -= page_offset;
06aae590
ACM		 1599 goto remap;
1600 }
1601
1602 size = event->header.size;
1603
27389d78 1604 if (size < sizeof(struct perf_event_header) ||
b7b61cbe 1605 (skip = perf_session__process_event(session, event, file_pos)) < 0) {
9389a460
JO		 1606 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
1607 file_offset + head, event->header.size,
1608 event->header.type);
1609 err = -EINVAL;
1610 goto out_err;
06aae590
ACM		 1611 }
1612
6f917c70
AH		 1613 if (skip)
1614 size += skip;
1615
06aae590 1616 head += size;
d6513281 1617 file_pos += size;
06aae590 1618
4d3001fd 1619 ui_progress__update(&prog, size);
55b44629 1620
33e940a2 1621 if (session_done())
8c16b649 1622 goto out;
33e940a2 1623
d6513281 1624 if (file_pos < file_size)
06aae590 1625 goto more;
d6513281 1626
8c16b649 1627out:
c61e52ee 1628 /* do the final flush for ordered samples */
b7b61cbe 1629 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1630 if (err)
1631 goto out_err;
1632 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1633 if (err)
1634 goto out_err;
1635 err = perf_session__flush_thread_stacks(session);
06aae590 1636out_err:
a5580f3e 1637 ui_progress__finish();
9870d780 1638 perf_session__warn_about_errors(session);
adc56ed1 1639 ordered_events__free(&session->ordered_events);
c446870d 1640 auxtrace__free_events(session);
919d86d3 1641 session->one_mmap = false;
06aae590
ACM		 1642 return err;
1643}
27295592 1644
b7b61cbe 1645int perf_session__process_events(struct perf_session *session)
6122e4e4 1646{
316c7136 1647 u64 size = perf_data_file__size(session->file);
6122e4e4
ACM		 1648 int err;
1649
316c7136 1650 if (perf_session__register_idle_thread(session) == NULL)
6122e4e4
ACM		 1651 return -ENOMEM;
1652
316c7136
ACM		 1653 if (!perf_data_file__is_pipe(session->file))
1654 err = __perf_session__process_events(session,
1655 session->header.data_offset,
b7b61cbe 1656 session->header.data_size, size);
8dc58101 1657 else
b7b61cbe 1658 err = __perf_session__process_pipe_events(session);
88ca895d 1659
6122e4e4
ACM		 1660 return err;
1661}
1662
7f3be652 1663bool perf_session__has_traces(struct perf_session *session, const char *msg)
27295592 1664{
93ea01c2
DA		 1665 struct perf_evsel *evsel;
1666
0050f7aa 1667 evlist__for_each(session->evlist, evsel) {
93ea01c2
DA		 1668 if (evsel->attr.type == PERF_TYPE_TRACEPOINT)
1669 return true;
27295592
ACM		 1670 }
1671
93ea01c2
DA		 1672 pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
1673 return false;
27295592 1674}
56b03f3c 1675
743eb868
ACM		 1676int maps__set_kallsyms_ref_reloc_sym(struct map **maps,
1677 const char *symbol_name, u64 addr)
56b03f3c
ACM		 1678{
1679 char *bracket;
9de89fe7 1680 enum map_type i;
a1645ce1
ZY		 1681 struct ref_reloc_sym *ref;
1682
1683 ref = zalloc(sizeof(struct ref_reloc_sym));
1684 if (ref == NULL)
1685 return -ENOMEM;
56b03f3c 1686
a1645ce1
ZY		 1687 ref->name = strdup(symbol_name);
1688 if (ref->name == NULL) {
1689 free(ref);
56b03f3c 1690 return -ENOMEM;
a1645ce1 1691 }
56b03f3c 1692
a1645ce1 1693 bracket = strchr(ref->name, ']');
56b03f3c
ACM		 1694 if (bracket)
1695 *bracket = '\0';
1696
a1645ce1 1697 ref->addr = addr;
9de89fe7
ACM		 1698
1699 for (i = 0; i < MAP__NR_TYPES; ++i) {
a1645ce1 1700 struct kmap *kmap = map__kmap(maps[i]);
ba92732e
WN		 1701
1702 if (!kmap)
1703 continue;
a1645ce1 1704 kmap->ref_reloc_sym = ref;
9de89fe7
ACM		 1705 }
1706
56b03f3c
ACM		 1707 return 0;
1708}
1f626bc3 1709
316c7136 1710size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
1f626bc3 1711{
316c7136 1712 return machines__fprintf_dsos(&session->machines, fp);
1f626bc3 1713}
f869097e 1714
316c7136 1715size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
417c2ff6 1716 bool (skip)(struct dso *dso, int parm), int parm)
f869097e 1717{
316c7136 1718 return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
f869097e 1719}
e248de33
ACM		 1720
1721size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
1722{
c446870d
AH		 1723 size_t ret;
1724 const char *msg = "";
1725
1726 if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
1727 msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
1728
1729 ret = fprintf(fp, "Aggregated stats:%s\n", msg);
e248de33 1730
75be989a 1731 ret += events_stats__fprintf(&session->evlist->stats, fp);
e248de33
ACM		 1732 return ret;
1733}
c0230b2b 1734
b424eba2
ACM		 1735size_t perf_session__fprintf(struct perf_session *session, FILE *fp)
1736{
1737 /*
1738 * FIXME: Here we have to actually print all the machines in this
1739 * session, not just the host...
1740 */
876650e6 1741 return machine__fprintf(&session->machines.host, fp);
b424eba2
ACM		 1742}
1743
9cbdb702
DA		 1744struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
1745 unsigned int type)
1746{
1747 struct perf_evsel *pos;
1748
0050f7aa 1749 evlist__for_each(session->evlist, pos) {
9cbdb702
DA		 1750 if (pos->attr.type == type)
1751 return pos;
1752 }
1753 return NULL;
1754}
1755
a2cb3cf2 1756void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
cc22e575 1757 struct addr_location *al,
307cbb92 1758 unsigned int print_opts, unsigned int stack_depth)
c0230b2b 1759{
c0230b2b 1760 struct callchain_cursor_node *node;
a6ffaf91
DA		 1761 int print_ip = print_opts & PRINT_IP_OPT_IP;
1762 int print_sym = print_opts & PRINT_IP_OPT_SYM;
1763 int print_dso = print_opts & PRINT_IP_OPT_DSO;
1764 int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
b0b35f01 1765 int print_oneline = print_opts & PRINT_IP_OPT_ONELINE;
cc8fae1d 1766 int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE;
b0b35f01 1767 char s = print_oneline ? ' ' : '\t';
c0230b2b 1768
c0230b2b 1769 if (symbol_conf.use_callchain && sample->callchain) {
a2cb3cf2 1770 struct addr_location node_al;
c0230b2b 1771
cc8b7c2b
ACM		 1772 if (thread__resolve_callchain(al->thread, evsel,
1773 sample, NULL, NULL,
1774 PERF_MAX_STACK_DEPTH) != 0) {
c0230b2b
DA		 1775 if (verbose)
1776 error("Failed to resolve callchain. Skipping\n");
1777 return;
1778 }
47260645 1779 callchain_cursor_commit(&callchain_cursor);
c0230b2b 1780
a2cb3cf2
AH		 1781 if (print_symoffset)
1782 node_al = *al;
1783
307cbb92 1784 while (stack_depth) {
a4eb24a4
AH		 1785 u64 addr = 0;
1786
47260645 1787 node = callchain_cursor_current(&callchain_cursor);
c0230b2b
DA		 1788 if (!node)
1789 break;
1790
d2ff1b14
DA		 1791 if (node->sym && node->sym->ignore)
1792 goto next;
1793
a6ffaf91 1794 if (print_ip)
b0b35f01 1795 printf("%c%16" PRIx64, s, node->ip);
a6ffaf91 1796
a4eb24a4
AH		 1797 if (node->map)
1798 addr = node->map->map_ip(node->map, node->ip);
1799
787bef17 1800 if (print_sym) {
547a92e0 1801 printf(" ");
251f426f 1802 if (print_symoffset) {
a4eb24a4 1803 node_al.addr = addr;
a2cb3cf2
AH		 1804 node_al.map = node->map;
1805 symbol__fprintf_symname_offs(node->sym, &node_al, stdout);
251f426f
DA		 1806 } else
1807 symbol__fprintf_symname(node->sym, stdout);
610723f2 1808 }
251f426f 1809
610723f2 1810 if (print_dso) {
547a92e0 1811 printf(" (");
52deff71 1812 map__fprintf_dsoname(node->map, stdout);
547a92e0 1813 printf(")");
787bef17 1814 }
b0b35f01 1815
cc8fae1d
AH		 1816 if (print_srcline)
1817 map__fprintf_srcline(node->map, addr, "\n ",
1818 stdout);
1819
b0b35f01
DA		 1820 if (!print_oneline)
1821 printf("\n");
c0230b2b 1822
307cbb92 1823 stack_depth--;
d2ff1b14
DA		 1824next:
1825 callchain_cursor_advance(&callchain_cursor);
c0230b2b
DA		 1826 }
1827
1828 } else {
a2cb3cf2 1829 if (al->sym && al->sym->ignore)
d2ff1b14
DA		 1830 return;
1831
a6ffaf91
DA		 1832 if (print_ip)
1833 printf("%16" PRIx64, sample->ip);
1834
787bef17 1835 if (print_sym) {
547a92e0 1836 printf(" ");
a978f2ab 1837 if (print_symoffset)
a2cb3cf2 1838 symbol__fprintf_symname_offs(al->sym, al,
a978f2ab
AN		 1839 stdout);
1840 else
a2cb3cf2 1841 symbol__fprintf_symname(al->sym, stdout);
610723f2
DA		 1842 }
1843
1844 if (print_dso) {
547a92e0 1845 printf(" (");
a2cb3cf2 1846 map__fprintf_dsoname(al->map, stdout);
547a92e0 1847 printf(")");
787bef17 1848 }
cc8fae1d
AH		 1849
1850 if (print_srcline)
1851 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
c0230b2b
DA		 1852 }
1853}
5d67be97
AB		 1854
1855int perf_session__cpu_bitmap(struct perf_session *session,
1856 const char *cpu_list, unsigned long *cpu_bitmap)
1857{
8bac41cb 1858 int i, err = -1;
5d67be97
AB		 1859 struct cpu_map *map;
1860
1861 for (i = 0; i < PERF_TYPE_MAX; ++i) {
1862 struct perf_evsel *evsel;
1863
1864 evsel = perf_session__find_first_evtype(session, i);
1865 if (!evsel)
1866 continue;
1867
1868 if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
1869 pr_err("File does not contain CPU events. "
1870 "Remove -c option to proceed.\n");
1871 return -1;
1872 }
1873 }
1874
1875 map = cpu_map__new(cpu_list);
47fbe53b
DA		 1876 if (map == NULL) {
1877 pr_err("Invalid cpu_list\n");
1878 return -1;
1879 }
5d67be97
AB		 1880
1881 for (i = 0; i < map->nr; i++) {
1882 int cpu = map->map[i];
1883
1884 if (cpu >= MAX_NR_CPUS) {
1885 pr_err("Requested CPU %d too large. "
1886 "Consider raising MAX_NR_CPUS\n", cpu);
8bac41cb 1887 goto out_delete_map;
5d67be97
AB		 1888 }
1889
1890 set_bit(cpu, cpu_bitmap);
1891 }
1892
8bac41cb
SF		 1893 err = 0;
1894
1895out_delete_map:
1896 cpu_map__delete(map);
1897 return err;
5d67be97 1898}
fbe96f29
SE		 1899
1900void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
1901 bool full)
1902{
1903 struct stat st;
c5765ece 1904 int fd, ret;
fbe96f29
SE		 1905
1906 if (session == NULL || fp == NULL)
1907 return;
1908
c5765ece
MI		 1909 fd = perf_data_file__fd(session->file);
1910
cc9784bd 1911 ret = fstat(fd, &st);
fbe96f29
SE		 1912 if (ret == -1)
1913 return;
1914
1915 fprintf(fp, "# ========\n");
1916 fprintf(fp, "# captured on: %s", ctime(&st.st_ctime));
1917 perf_header__fprintf_info(session, fp, full);
1918 fprintf(fp, "# ========\n#\n");
1919}
da378962
ACM		 1920
1921
1922int __perf_session__set_tracepoints_handlers(struct perf_session *session,
1923 const struct perf_evsel_str_handler *assocs,
1924 size_t nr_assocs)
1925{
da378962 1926 struct perf_evsel *evsel;
da378962
ACM		 1927 size_t i;
1928 int err;
1929
1930 for (i = 0; i < nr_assocs; i++) {
ccf53eac
ACM		 1931 /*
1932 * Adding a handler for an event not in the session,
1933 * just ignore it.
1934 */
1935 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name);
da378962 1936 if (evsel == NULL)
ccf53eac 1937 continue;
da378962
ACM		 1938
1939 err = -EEXIST;
744a9719 1940 if (evsel->handler != NULL)
ccf53eac 1941 goto out;
744a9719 1942 evsel->handler = assocs[i].handler;
da378962
ACM		 1943 }
1944
1945 err = 0;
1946out:
1947 return err;
da378962 1948}
3c659eed
AH		 1949
1950int perf_event__process_id_index(struct perf_tool *tool __maybe_unused,
1951 union perf_event *event,
1952 struct perf_session *session)
1953{
1954 struct perf_evlist *evlist = session->evlist;
1955 struct id_index_event *ie = &event->id_index;
1956 size_t i, nr, max_nr;
1957
1958 max_nr = (ie->header.size - sizeof(struct id_index_event)) /
1959 sizeof(struct id_index_entry);
1960 nr = ie->nr;
1961 if (nr > max_nr)
1962 return -EINVAL;
1963
1964 if (dump_trace)
1965 fprintf(stdout, " nr: %zu\n", nr);
1966
1967 for (i = 0; i < nr; i++) {
1968 struct id_index_entry *e = &ie->entries[i];
1969 struct perf_sample_id *sid;
1970
1971 if (dump_trace) {
1972 fprintf(stdout, " ... id: %"PRIu64, e->id);
1973 fprintf(stdout, " idx: %"PRIu64, e->idx);
1974 fprintf(stdout, " cpu: %"PRId64, e->cpu);
1975 fprintf(stdout, " tid: %"PRId64"\n", e->tid);
1976 }
1977
1978 sid = perf_evlist__id2sid(evlist, e->id);
1979 if (!sid)
1980 return -ENOENT;
1981 sid->idx = e->idx;
1982 sid->cpu = e->cpu;
1983 sid->tid = e->tid;
1984 }
1985 return 0;
1986}
1987
1988int perf_event__synthesize_id_index(struct perf_tool *tool,
1989 perf_event__handler_t process,
1990 struct perf_evlist *evlist,
1991 struct machine *machine)
1992{
1993 union perf_event *ev;
1994 struct perf_evsel *evsel;
1995 size_t nr = 0, i = 0, sz, max_nr, n;
1996 int err;
1997
1998 pr_debug2("Synthesizing id index\n");
1999
2000 max_nr = (UINT16_MAX - sizeof(struct id_index_event)) /
2001 sizeof(struct id_index_entry);
2002
cba9b847 2003 evlist__for_each(evlist, evsel)
3c659eed
AH		 2004 nr += evsel->ids;
2005
2006 n = nr > max_nr ? max_nr : nr;
2007 sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry);
2008 ev = zalloc(sz);
2009 if (!ev)
2010 return -ENOMEM;
2011
2012 ev->id_index.header.type = PERF_RECORD_ID_INDEX;
2013 ev->id_index.header.size = sz;
2014 ev->id_index.nr = n;
2015
cba9b847 2016 evlist__for_each(evlist, evsel) {
3c659eed
AH		 2017 u32 j;
2018
2019 for (j = 0; j < evsel->ids; j++) {
2020 struct id_index_entry *e;
2021 struct perf_sample_id *sid;
2022
2023 if (i >= n) {
2024 err = process(tool, ev, NULL, machine);
2025 if (err)
2026 goto out_err;
2027 nr -= n;
2028 i = 0;
2029 }
2030
2031 e = &ev->id_index.entries[i++];
2032
2033 e->id = evsel->id[j];
2034
2035 sid = perf_evlist__id2sid(evlist, e->id);
2036 if (!sid) {
2037 free(ev);
2038 return -ENOENT;
2039 }
2040
2041 e->idx = sid->idx;
2042 e->cpu = sid->cpu;
2043 e->tid = sid->tid;
2044 }
2045 }
2046
2047 sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry);
2048 ev->id_index.header.size = sz;
2049 ev->id_index.nr = nr;
2050
2051 err = process(tool, ev, NULL, machine);
2052out_err:
2053 free(ev);
2054
2055 return err;
2056}
Linux kernel - Deliverables
This page took 0.309025 seconds and 5 git commands to generate.