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perf tools: Add stat config event read function
[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) {
e87b4911 32 pr_err("incompatible file format (rerun with -v to learn more)\n");
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)) {
e87b4911 40 pr_err("non matching sample_type\n");
6a4d98d7 41 return -1;
c2a70653
ACM		 42 }
43
316c7136 44 if (!perf_evlist__valid_sample_id_all(session->evlist)) {
e87b4911 45 pr_err("non matching sample_id_all\n");
6a4d98d7 46 return -1;
c2a70653
ACM		 47 }
48
316c7136 49 if (!perf_evlist__valid_read_format(session->evlist)) {
e87b4911 50 pr_err("non matching read_format\n");
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 140 }
4cde998d
ACM		 141 } else {
142 session->machines.host.env = &perf_env;
6a4d98d7
JO		 143 }
144
145 if (!file || perf_data_file__is_write(file)) {
64abebf7
ACM		 146 /*
147 * In O_RDONLY mode this will be performed when reading the
8115d60c 148 * kernel MMAP event, in perf_event__process_mmap().
64abebf7 149 */
316c7136 150 if (perf_session__create_kernel_maps(session) < 0)
a5c2a4c9 151 pr_warning("Cannot read kernel map\n");
64abebf7 152 }
d549c769 153
45694aa7 154 if (tool && tool->ordering_requires_timestamps &&
0a8cb85c 155 tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) {
21ef97f0 156 dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
0a8cb85c 157 tool->ordered_events = false;
d10eb1eb 158 }
21ef97f0 159
316c7136 160 return session;
6a4d98d7
JO		 161
162 out_close:
163 perf_data_file__close(file);
164 out_delete:
316c7136 165 perf_session__delete(session);
6a4d98d7 166 out:
4aa65636 167 return NULL;
94c744b6
ACM		 168}
169
b424eba2
ACM		 170static void perf_session__delete_threads(struct perf_session *session)
171{
876650e6 172 machine__delete_threads(&session->machines.host);
b424eba2
ACM		 173}
174
316c7136 175void perf_session__delete(struct perf_session *session)
94c744b6 176{
c446870d 177 auxtrace__free(session);
99fa2984 178 auxtrace_index__free(&session->auxtrace_index);
316c7136 179 perf_session__destroy_kernel_maps(session);
316c7136 180 perf_session__delete_threads(session);
f0ce888c 181 perf_env__exit(&session->header.env);
316c7136
ACM		 182 machines__exit(&session->machines);
183 if (session->file)
184 perf_data_file__close(session->file);
185 free(session);
94c744b6 186}
a328626b 187
47c3d109
AH		 188static int process_event_synth_tracing_data_stub(struct perf_tool *tool
189 __maybe_unused,
190 union perf_event *event
1d037ca1
IT		 191 __maybe_unused,
192 struct perf_session *session
193 __maybe_unused)
d20deb64
ACM		 194{
195 dump_printf(": unhandled!\n");
196 return 0;
197}
198
47c3d109
AH		 199static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused,
200 union perf_event *event __maybe_unused,
1d037ca1
IT		 201 struct perf_evlist **pevlist
202 __maybe_unused)
10d0f086
ACM		 203{
204 dump_printf(": unhandled!\n");
205 return 0;
206}
207
1d037ca1
IT		 208static int process_event_sample_stub(struct perf_tool *tool __maybe_unused,
209 union perf_event *event __maybe_unused,
210 struct perf_sample *sample __maybe_unused,
211 struct perf_evsel *evsel __maybe_unused,
212 struct machine *machine __maybe_unused)
9e69c210
ACM		 213{
214 dump_printf(": unhandled!\n");
215 return 0;
216}
217
1d037ca1
IT		 218static int process_event_stub(struct perf_tool *tool __maybe_unused,
219 union perf_event *event __maybe_unused,
220 struct perf_sample *sample __maybe_unused,
221 struct machine *machine __maybe_unused)
06aae590
ACM		 222{
223 dump_printf(": unhandled!\n");
224 return 0;
225}
226
d704ebda
ACM		 227static int process_build_id_stub(struct perf_tool *tool __maybe_unused,
228 union perf_event *event __maybe_unused,
229 struct perf_session *session __maybe_unused)
230{
231 dump_printf(": unhandled!\n");
232 return 0;
233}
234
1d037ca1
IT		 235static int process_finished_round_stub(struct perf_tool *tool __maybe_unused,
236 union perf_event *event __maybe_unused,
d704ebda 237 struct ordered_events *oe __maybe_unused)
743eb868
ACM		 238{
239 dump_printf(": unhandled!\n");
240 return 0;
241}
242
45694aa7 243static int process_finished_round(struct perf_tool *tool,
d20deb64 244 union perf_event *event,
d704ebda 245 struct ordered_events *oe);
d6b17beb 246
3c659eed
AH		 247static int process_id_index_stub(struct perf_tool *tool __maybe_unused,
248 union perf_event *event __maybe_unused,
249 struct perf_session *perf_session
250 __maybe_unused)
251{
252 dump_printf(": unhandled!\n");
253 return 0;
254}
255
a16ac023
AH		 256static int process_event_auxtrace_info_stub(struct perf_tool *tool __maybe_unused,
257 union perf_event *event __maybe_unused,
258 struct perf_session *session __maybe_unused)
259{
260 dump_printf(": unhandled!\n");
261 return 0;
262}
263
264static int skipn(int fd, off_t n)
265{
266 char buf[4096];
267 ssize_t ret;
268
269 while (n > 0) {
270 ret = read(fd, buf, min(n, (off_t)sizeof(buf)));
271 if (ret <= 0)
272 return ret;
273 n -= ret;
274 }
275
276 return 0;
277}
278
279static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused,
280 union perf_event *event,
281 struct perf_session *session
282 __maybe_unused)
283{
284 dump_printf(": unhandled!\n");
285 if (perf_data_file__is_pipe(session->file))
286 skipn(perf_data_file__fd(session->file), event->auxtrace.size);
287 return event->auxtrace.size;
288}
289
e9bf54d2
AH		 290static
291int process_event_auxtrace_error_stub(struct perf_tool *tool __maybe_unused,
292 union perf_event *event __maybe_unused,
293 struct perf_session *session __maybe_unused)
294{
295 dump_printf(": unhandled!\n");
296 return 0;
297}
298
5f3339d2
JO		 299
300static
301int process_event_thread_map_stub(struct perf_tool *tool __maybe_unused,
302 union perf_event *event __maybe_unused,
303 struct perf_session *session __maybe_unused)
304{
305 dump_printf(": unhandled!\n");
306 return 0;
307}
308
6640b6c2
JO		 309static
310int process_event_cpu_map_stub(struct perf_tool *tool __maybe_unused,
311 union perf_event *event __maybe_unused,
312 struct perf_session *session __maybe_unused)
313{
314 dump_printf(": unhandled!\n");
315 return 0;
316}
317
374fb9e3
JO		 318static
319int process_event_stat_config_stub(struct perf_tool *tool __maybe_unused,
320 union perf_event *event __maybe_unused,
321 struct perf_session *session __maybe_unused)
322{
323 dump_printf(": unhandled!\n");
324 return 0;
325}
326
9c501402 327void perf_tool__fill_defaults(struct perf_tool *tool)
06aae590 328{
45694aa7
ACM		 329 if (tool->sample == NULL)
330 tool->sample = process_event_sample_stub;
331 if (tool->mmap == NULL)
332 tool->mmap = process_event_stub;
6adb0b0a
DA		 333 if (tool->mmap2 == NULL)
334 tool->mmap2 = process_event_stub;
45694aa7
ACM		 335 if (tool->comm == NULL)
336 tool->comm = process_event_stub;
337 if (tool->fork == NULL)
338 tool->fork = process_event_stub;
339 if (tool->exit == NULL)
340 tool->exit = process_event_stub;
341 if (tool->lost == NULL)
342 tool->lost = perf_event__process_lost;
c4937a91
KL		 343 if (tool->lost_samples == NULL)
344 tool->lost_samples = perf_event__process_lost_samples;
4a96f7a0
AH		 345 if (tool->aux == NULL)
346 tool->aux = perf_event__process_aux;
0ad21f68
AH		 347 if (tool->itrace_start == NULL)
348 tool->itrace_start = perf_event__process_itrace_start;
0286039f
AH		 349 if (tool->context_switch == NULL)
350 tool->context_switch = perf_event__process_switch;
45694aa7
ACM		 351 if (tool->read == NULL)
352 tool->read = process_event_sample_stub;
353 if (tool->throttle == NULL)
354 tool->throttle = process_event_stub;
355 if (tool->unthrottle == NULL)
356 tool->unthrottle = process_event_stub;
357 if (tool->attr == NULL)
358 tool->attr = process_event_synth_attr_stub;
45694aa7
ACM		 359 if (tool->tracing_data == NULL)
360 tool->tracing_data = process_event_synth_tracing_data_stub;
361 if (tool->build_id == NULL)
d704ebda 362 tool->build_id = process_build_id_stub;
45694aa7 363 if (tool->finished_round == NULL) {
0a8cb85c 364 if (tool->ordered_events)
45694aa7 365 tool->finished_round = process_finished_round;
d6b17beb 366 else
45694aa7 367 tool->finished_round = process_finished_round_stub;
d6b17beb 368 }
3c659eed
AH		 369 if (tool->id_index == NULL)
370 tool->id_index = process_id_index_stub;
a16ac023
AH		 371 if (tool->auxtrace_info == NULL)
372 tool->auxtrace_info = process_event_auxtrace_info_stub;
373 if (tool->auxtrace == NULL)
374 tool->auxtrace = process_event_auxtrace_stub;
e9bf54d2
AH		 375 if (tool->auxtrace_error == NULL)
376 tool->auxtrace_error = process_event_auxtrace_error_stub;
5f3339d2
JO		 377 if (tool->thread_map == NULL)
378 tool->thread_map = process_event_thread_map_stub;
6640b6c2
JO		 379 if (tool->cpu_map == NULL)
380 tool->cpu_map = process_event_cpu_map_stub;
374fb9e3
JO		 381 if (tool->stat_config == NULL)
382 tool->stat_config = process_event_stat_config_stub;
06aae590 383}
48000a1a 384
268fb20f
JO		 385static void swap_sample_id_all(union perf_event *event, void *data)
386{
387 void *end = (void *) event + event->header.size;
388 int size = end - data;
389
390 BUG_ON(size % sizeof(u64));
391 mem_bswap_64(data, size);
392}
393
394static void perf_event__all64_swap(union perf_event *event,
1d037ca1 395 bool sample_id_all __maybe_unused)
ba21594c 396{
8115d60c
ACM		 397 struct perf_event_header *hdr = &event->header;
398 mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr));
ba21594c
ACM		 399}
400
268fb20f 401static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
ba21594c 402{
8115d60c
ACM		 403 event->comm.pid = bswap_32(event->comm.pid);
404 event->comm.tid = bswap_32(event->comm.tid);
268fb20f
JO		 405
406 if (sample_id_all) {
407 void *data = &event->comm.comm;
408
9ac3e487 409 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 410 swap_sample_id_all(event, data);
411 }
ba21594c
ACM		 412}
413
268fb20f
JO		 414static void perf_event__mmap_swap(union perf_event *event,
415 bool sample_id_all)
ba21594c 416{
8115d60c
ACM		 417 event->mmap.pid = bswap_32(event->mmap.pid);
418 event->mmap.tid = bswap_32(event->mmap.tid);
419 event->mmap.start = bswap_64(event->mmap.start);
420 event->mmap.len = bswap_64(event->mmap.len);
421 event->mmap.pgoff = bswap_64(event->mmap.pgoff);
268fb20f
JO		 422
423 if (sample_id_all) {
424 void *data = &event->mmap.filename;
425
9ac3e487 426 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 427 swap_sample_id_all(event, data);
428 }
ba21594c
ACM		 429}
430
5c5e854b
SE		 431static void perf_event__mmap2_swap(union perf_event *event,
432 bool sample_id_all)
433{
434 event->mmap2.pid = bswap_32(event->mmap2.pid);
435 event->mmap2.tid = bswap_32(event->mmap2.tid);
436 event->mmap2.start = bswap_64(event->mmap2.start);
437 event->mmap2.len = bswap_64(event->mmap2.len);
438 event->mmap2.pgoff = bswap_64(event->mmap2.pgoff);
439 event->mmap2.maj = bswap_32(event->mmap2.maj);
440 event->mmap2.min = bswap_32(event->mmap2.min);
441 event->mmap2.ino = bswap_64(event->mmap2.ino);
442
443 if (sample_id_all) {
444 void *data = &event->mmap2.filename;
445
446 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
447 swap_sample_id_all(event, data);
448 }
449}
268fb20f 450static void perf_event__task_swap(union perf_event *event, bool sample_id_all)
ba21594c 451{
8115d60c
ACM		 452 event->fork.pid = bswap_32(event->fork.pid);
453 event->fork.tid = bswap_32(event->fork.tid);
454 event->fork.ppid = bswap_32(event->fork.ppid);
455 event->fork.ptid = bswap_32(event->fork.ptid);
456 event->fork.time = bswap_64(event->fork.time);
268fb20f
JO		 457
458 if (sample_id_all)
459 swap_sample_id_all(event, &event->fork + 1);
ba21594c
ACM		 460}
461
268fb20f 462static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
ba21594c 463{
8115d60c
ACM		 464 event->read.pid = bswap_32(event->read.pid);
465 event->read.tid = bswap_32(event->read.tid);
466 event->read.value = bswap_64(event->read.value);
467 event->read.time_enabled = bswap_64(event->read.time_enabled);
468 event->read.time_running = bswap_64(event->read.time_running);
469 event->read.id = bswap_64(event->read.id);
268fb20f
JO		 470
471 if (sample_id_all)
472 swap_sample_id_all(event, &event->read + 1);
ba21594c
ACM		 473}
474
4a96f7a0
AH		 475static void perf_event__aux_swap(union perf_event *event, bool sample_id_all)
476{
477 event->aux.aux_offset = bswap_64(event->aux.aux_offset);
478 event->aux.aux_size = bswap_64(event->aux.aux_size);
479 event->aux.flags = bswap_64(event->aux.flags);
480
481 if (sample_id_all)
482 swap_sample_id_all(event, &event->aux + 1);
483}
484
0ad21f68
AH		 485static void perf_event__itrace_start_swap(union perf_event *event,
486 bool sample_id_all)
487{
488 event->itrace_start.pid = bswap_32(event->itrace_start.pid);
489 event->itrace_start.tid = bswap_32(event->itrace_start.tid);
490
491 if (sample_id_all)
492 swap_sample_id_all(event, &event->itrace_start + 1);
493}
494
0286039f
AH		 495static void perf_event__switch_swap(union perf_event *event, bool sample_id_all)
496{
497 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
498 event->context_switch.next_prev_pid =
499 bswap_32(event->context_switch.next_prev_pid);
500 event->context_switch.next_prev_tid =
501 bswap_32(event->context_switch.next_prev_tid);
502 }
503
504 if (sample_id_all)
505 swap_sample_id_all(event, &event->context_switch + 1);
506}
507
dd96c46b
JO		 508static void perf_event__throttle_swap(union perf_event *event,
509 bool sample_id_all)
510{
511 event->throttle.time = bswap_64(event->throttle.time);
512 event->throttle.id = bswap_64(event->throttle.id);
513 event->throttle.stream_id = bswap_64(event->throttle.stream_id);
514
515 if (sample_id_all)
516 swap_sample_id_all(event, &event->throttle + 1);
517}
518
e108c66e
JO		 519static u8 revbyte(u8 b)
520{
521 int rev = (b >> 4) | ((b & 0xf) << 4);
522 rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2);
523 rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1);
524 return (u8) rev;
525}
526
527/*
528 * XXX this is hack in attempt to carry flags bitfield
529 * throught endian village. ABI says:
530 *
531 * Bit-fields are allocated from right to left (least to most significant)
532 * on little-endian implementations and from left to right (most to least
533 * significant) on big-endian implementations.
534 *
535 * The above seems to be byte specific, so we need to reverse each
536 * byte of the bitfield. 'Internet' also says this might be implementation
537 * specific and we probably need proper fix and carry perf_event_attr
538 * bitfield flags in separate data file FEAT_ section. Thought this seems
539 * to work for now.
540 */
541static void swap_bitfield(u8 *p, unsigned len)
542{
543 unsigned i;
544
545 for (i = 0; i < len; i++) {
546 *p = revbyte(*p);
547 p++;
548 }
549}
550
eda3913b
DA		 551/* exported for swapping attributes in file header */
552void perf_event__attr_swap(struct perf_event_attr *attr)
553{
554 attr->type = bswap_32(attr->type);
555 attr->size = bswap_32(attr->size);
b30b6172
WN		 556
557#define bswap_safe(f, n) \
558 (attr->size > (offsetof(struct perf_event_attr, f) + \
559 sizeof(attr->f) * (n)))
560#define bswap_field(f, sz) \
561do { \
562 if (bswap_safe(f, 0)) \
563 attr->f = bswap_##sz(attr->f); \
564} while(0)
565#define bswap_field_32(f) bswap_field(f, 32)
566#define bswap_field_64(f) bswap_field(f, 64)
567
568 bswap_field_64(config);
569 bswap_field_64(sample_period);
570 bswap_field_64(sample_type);
571 bswap_field_64(read_format);
572 bswap_field_32(wakeup_events);
573 bswap_field_32(bp_type);
574 bswap_field_64(bp_addr);
575 bswap_field_64(bp_len);
576 bswap_field_64(branch_sample_type);
577 bswap_field_64(sample_regs_user);
578 bswap_field_32(sample_stack_user);
579 bswap_field_32(aux_watermark);
580
581 /*
582 * After read_format are bitfields. Check read_format because
583 * we are unable to use offsetof on bitfield.
584 */
585 if (bswap_safe(read_format, 1))
586 swap_bitfield((u8 *) (&attr->read_format + 1),
587 sizeof(u64));
588#undef bswap_field_64
589#undef bswap_field_32
590#undef bswap_field
591#undef bswap_safe
eda3913b
DA		 592}
593
268fb20f 594static void perf_event__hdr_attr_swap(union perf_event *event,
1d037ca1 595 bool sample_id_all __maybe_unused)
2c46dbb5
TZ		 596{
597 size_t size;
598
eda3913b 599 perf_event__attr_swap(&event->attr.attr);
2c46dbb5 600
8115d60c
ACM		 601 size = event->header.size;
602 size -= (void *)&event->attr.id - (void *)event;
603 mem_bswap_64(event->attr.id, size);
2c46dbb5
TZ		 604}
605
268fb20f 606static void perf_event__event_type_swap(union perf_event *event,
1d037ca1 607 bool sample_id_all __maybe_unused)
cd19a035 608{
8115d60c
ACM		 609 event->event_type.event_type.event_id =
610 bswap_64(event->event_type.event_type.event_id);
cd19a035
TZ		 611}
612
268fb20f 613static void perf_event__tracing_data_swap(union perf_event *event,
1d037ca1 614 bool sample_id_all __maybe_unused)
9215545e 615{
8115d60c 616 event->tracing_data.size = bswap_32(event->tracing_data.size);
9215545e
TZ		 617}
618
a16ac023
AH		 619static void perf_event__auxtrace_info_swap(union perf_event *event,
620 bool sample_id_all __maybe_unused)
621{
622 size_t size;
623
624 event->auxtrace_info.type = bswap_32(event->auxtrace_info.type);
625
626 size = event->header.size;
627 size -= (void *)&event->auxtrace_info.priv - (void *)event;
628 mem_bswap_64(event->auxtrace_info.priv, size);
629}
630
631static void perf_event__auxtrace_swap(union perf_event *event,
632 bool sample_id_all __maybe_unused)
633{
634 event->auxtrace.size = bswap_64(event->auxtrace.size);
635 event->auxtrace.offset = bswap_64(event->auxtrace.offset);
636 event->auxtrace.reference = bswap_64(event->auxtrace.reference);
637 event->auxtrace.idx = bswap_32(event->auxtrace.idx);
638 event->auxtrace.tid = bswap_32(event->auxtrace.tid);
639 event->auxtrace.cpu = bswap_32(event->auxtrace.cpu);
640}
641
e9bf54d2
AH		 642static void perf_event__auxtrace_error_swap(union perf_event *event,
643 bool sample_id_all __maybe_unused)
644{
645 event->auxtrace_error.type = bswap_32(event->auxtrace_error.type);
646 event->auxtrace_error.code = bswap_32(event->auxtrace_error.code);
647 event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu);
648 event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid);
649 event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid);
650 event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip);
651}
652
5f3339d2
JO		 653static void perf_event__thread_map_swap(union perf_event *event,
654 bool sample_id_all __maybe_unused)
655{
656 unsigned i;
657
658 event->thread_map.nr = bswap_64(event->thread_map.nr);
659
660 for (i = 0; i < event->thread_map.nr; i++)
661 event->thread_map.entries[i].pid = bswap_64(event->thread_map.entries[i].pid);
662}
663
6640b6c2
JO		 664static void perf_event__cpu_map_swap(union perf_event *event,
665 bool sample_id_all __maybe_unused)
666{
667 struct cpu_map_data *data = &event->cpu_map.data;
668 struct cpu_map_entries *cpus;
669 struct cpu_map_mask *mask;
670 unsigned i;
671
672 data->type = bswap_64(data->type);
673
674 switch (data->type) {
675 case PERF_CPU_MAP__CPUS:
676 cpus = (struct cpu_map_entries *)data->data;
677
678 cpus->nr = bswap_16(cpus->nr);
679
680 for (i = 0; i < cpus->nr; i++)
681 cpus->cpu[i] = bswap_16(cpus->cpu[i]);
682 break;
683 case PERF_CPU_MAP__MASK:
684 mask = (struct cpu_map_mask *) data->data;
685
686 mask->nr = bswap_16(mask->nr);
687 mask->long_size = bswap_16(mask->long_size);
688
689 switch (mask->long_size) {
690 case 4: mem_bswap_32(&mask->mask, mask->nr); break;
691 case 8: mem_bswap_64(&mask->mask, mask->nr); break;
692 default:
693 pr_err("cpu_map swap: unsupported long size\n");
694 }
695 default:
696 break;
697 }
698}
699
374fb9e3
JO		 700static void perf_event__stat_config_swap(union perf_event *event,
701 bool sample_id_all __maybe_unused)
702{
703 u64 size;
704
705 size = event->stat_config.nr * sizeof(event->stat_config.data[0]);
706 size += 1; /* nr item itself */
707 mem_bswap_64(&event->stat_config.nr, size);
708}
709
268fb20f
JO		 710typedef void (*perf_event__swap_op)(union perf_event *event,
711 bool sample_id_all);
ba21594c 712
8115d60c
ACM		 713static perf_event__swap_op perf_event__swap_ops[] = {
714 [PERF_RECORD_MMAP] = perf_event__mmap_swap,
5c5e854b 715 [PERF_RECORD_MMAP2] = perf_event__mmap2_swap,
8115d60c
ACM		 716 [PERF_RECORD_COMM] = perf_event__comm_swap,
717 [PERF_RECORD_FORK] = perf_event__task_swap,
718 [PERF_RECORD_EXIT] = perf_event__task_swap,
719 [PERF_RECORD_LOST] = perf_event__all64_swap,
720 [PERF_RECORD_READ] = perf_event__read_swap,
dd96c46b
JO		 721 [PERF_RECORD_THROTTLE] = perf_event__throttle_swap,
722 [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap,
8115d60c 723 [PERF_RECORD_SAMPLE] = perf_event__all64_swap,
4a96f7a0 724 [PERF_RECORD_AUX] = perf_event__aux_swap,
0ad21f68 725 [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
c4937a91 726 [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
0286039f
AH		 727 [PERF_RECORD_SWITCH] = perf_event__switch_swap,
728 [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap,
eda3913b 729 [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
8115d60c
ACM		 730 [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
731 [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
732 [PERF_RECORD_HEADER_BUILD_ID] = NULL,
3c659eed 733 [PERF_RECORD_ID_INDEX] = perf_event__all64_swap,
a16ac023
AH		 734 [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap,
735 [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap,
e9bf54d2 736 [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap,
5f3339d2 737 [PERF_RECORD_THREAD_MAP] = perf_event__thread_map_swap,
6640b6c2 738 [PERF_RECORD_CPU_MAP] = perf_event__cpu_map_swap,
374fb9e3 739 [PERF_RECORD_STAT_CONFIG] = perf_event__stat_config_swap,
8115d60c 740 [PERF_RECORD_HEADER_MAX] = NULL,
ba21594c
ACM		 741};
742
d6b17beb
FW		 743/*
744 * When perf record finishes a pass on every buffers, it records this pseudo
745 * event.
746 * We record the max timestamp t found in the pass n.
747 * Assuming these timestamps are monotonic across cpus, we know that if
748 * a buffer still has events with timestamps below t, they will be all
749 * available and then read in the pass n + 1.
750 * Hence when we start to read the pass n + 2, we can safely flush every
751 * events with timestamps below t.
752 *
753 * ============ PASS n =================
754 * CPU 0 | CPU 1
755 * |
756 * cnt1 timestamps | cnt2 timestamps
757 * 1 | 2
758 * 2 | 3
759 * - | 4 <--- max recorded
760 *
761 * ============ PASS n + 1 ==============
762 * CPU 0 | CPU 1
763 * |
764 * cnt1 timestamps | cnt2 timestamps
765 * 3 | 5
766 * 4 | 6
767 * 5 | 7 <---- max recorded
768 *
769 * Flush every events below timestamp 4
770 *
771 * ============ PASS n + 2 ==============
772 * CPU 0 | CPU 1
773 * |
774 * cnt1 timestamps | cnt2 timestamps
775 * 6 | 8
776 * 7 | 9
777 * - | 10
778 *
779 * Flush every events below timestamp 7
780 * etc...
781 */
b7b61cbe 782static int process_finished_round(struct perf_tool *tool __maybe_unused,
1d037ca1 783 union perf_event *event __maybe_unused,
d704ebda 784 struct ordered_events *oe)
d6b17beb 785{
5531e162
AH		 786 if (dump_trace)
787 fprintf(stdout, "\n");
b7b61cbe 788 return ordered_events__flush(oe, OE_FLUSH__ROUND);
d6b17beb
FW		 789}
790
b7b61cbe
ACM		 791int perf_session__queue_event(struct perf_session *s, union perf_event *event,
792 struct perf_sample *sample, u64 file_offset)
c61e52ee 793{
4a6b362f 794 return ordered_events__queue(&s->ordered_events, event, sample, file_offset);
640c03ce 795}
c61e52ee 796
384b6055 797static void callchain__lbr_callstack_printf(struct perf_sample *sample)
640c03ce 798{
384b6055
KL		 799 struct ip_callchain *callchain = sample->callchain;
800 struct branch_stack *lbr_stack = sample->branch_stack;
801 u64 kernel_callchain_nr = callchain->nr;
640c03ce 802 unsigned int i;
c61e52ee 803
384b6055
KL		 804 for (i = 0; i < kernel_callchain_nr; i++) {
805 if (callchain->ips[i] == PERF_CONTEXT_USER)
806 break;
807 }
808
809 if ((i != kernel_callchain_nr) && lbr_stack->nr) {
810 u64 total_nr;
811 /*
812 * LBR callstack can only get user call chain,
813 * i is kernel call chain number,
814 * 1 is PERF_CONTEXT_USER.
815 *
816 * The user call chain is stored in LBR registers.
817 * LBR are pair registers. The caller is stored
818 * in "from" register, while the callee is stored
819 * in "to" register.
820 * For example, there is a call stack
821 * "A"->"B"->"C"->"D".
822 * The LBR registers will recorde like
823 * "C"->"D", "B"->"C", "A"->"B".
824 * So only the first "to" register and all "from"
825 * registers are needed to construct the whole stack.
826 */
827 total_nr = i + 1 + lbr_stack->nr + 1;
828 kernel_callchain_nr = i + 1;
829
830 printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr);
831
832 for (i = 0; i < kernel_callchain_nr; i++)
833 printf("..... %2d: %016" PRIx64 "\n",
834 i, callchain->ips[i]);
835
836 printf("..... %2d: %016" PRIx64 "\n",
837 (int)(kernel_callchain_nr), lbr_stack->entries[0].to);
838 for (i = 0; i < lbr_stack->nr; i++)
839 printf("..... %2d: %016" PRIx64 "\n",
840 (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from);
841 }
842}
843
844static void callchain__printf(struct perf_evsel *evsel,
845 struct perf_sample *sample)
846{
847 unsigned int i;
848 struct ip_callchain *callchain = sample->callchain;
849
850 if (has_branch_callstack(evsel))
851 callchain__lbr_callstack_printf(sample);
852
853 printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr);
640c03ce 854
384b6055 855 for (i = 0; i < callchain->nr; i++)
9486aa38 856 printf("..... %2d: %016" PRIx64 "\n",
384b6055 857 i, callchain->ips[i]);
c61e52ee
FW		 858}
859
b5387528
RAV		 860static void branch_stack__printf(struct perf_sample *sample)
861{
862 uint64_t i;
863
864 printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
865
0e332f03
AK		 866 for (i = 0; i < sample->branch_stack->nr; i++) {
867 struct branch_entry *e = &sample->branch_stack->entries[i];
868
869 printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n",
870 i, e->from, e->to,
871 e->flags.cycles,
872 e->flags.mispred ? "M" : " ",
873 e->flags.predicted ? "P" : " ",
874 e->flags.abort ? "A" : " ",
875 e->flags.in_tx ? "T" : " ",
876 (unsigned)e->flags.reserved);
877 }
b5387528
RAV		 878}
879
0f6a3015
JO		 880static void regs_dump__printf(u64 mask, u64 *regs)
881{
882 unsigned rid, i = 0;
883
884 for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) {
885 u64 val = regs[i++];
886
887 printf(".... %-5s 0x%" PRIx64 "\n",
888 perf_reg_name(rid), val);
889 }
890}
891
6a21c0b5
SE		 892static const char *regs_abi[] = {
893 [PERF_SAMPLE_REGS_ABI_NONE] = "none",
894 [PERF_SAMPLE_REGS_ABI_32] = "32-bit",
895 [PERF_SAMPLE_REGS_ABI_64] = "64-bit",
896};
897
898static inline const char *regs_dump_abi(struct regs_dump *d)
899{
900 if (d->abi > PERF_SAMPLE_REGS_ABI_64)
901 return "unknown";
902
903 return regs_abi[d->abi];
904}
905
906static void regs__printf(const char *type, struct regs_dump *regs)
907{
908 u64 mask = regs->mask;
909
910 printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n",
911 type,
912 mask,
913 regs_dump_abi(regs));
914
915 regs_dump__printf(mask, regs->regs);
916}
917
352ea45a 918static void regs_user__printf(struct perf_sample *sample)
0f6a3015
JO		 919{
920 struct regs_dump *user_regs = &sample->user_regs;
921
6a21c0b5
SE		 922 if (user_regs->regs)
923 regs__printf("user", user_regs);
924}
925
926static void regs_intr__printf(struct perf_sample *sample)
927{
928 struct regs_dump *intr_regs = &sample->intr_regs;
929
930 if (intr_regs->regs)
931 regs__printf("intr", intr_regs);
0f6a3015
JO		 932}
933
934static void stack_user__printf(struct stack_dump *dump)
935{
936 printf("... ustack: size %" PRIu64 ", offset 0x%x\n",
937 dump->size, dump->offset);
938}
939
9fa8727a 940static void perf_evlist__print_tstamp(struct perf_evlist *evlist,
8115d60c 941 union perf_event *event,
8d50e5b4 942 struct perf_sample *sample)
9c90a61c 943{
9fa8727a 944 u64 sample_type = __perf_evlist__combined_sample_type(evlist);
7f3be652 945
9c90a61c 946 if (event->header.type != PERF_RECORD_SAMPLE &&
9fa8727a 947 !perf_evlist__sample_id_all(evlist)) {
9c90a61c
ACM		 948 fputs("-1 -1 ", stdout);
949 return;
950 }
951
7f3be652 952 if ((sample_type & PERF_SAMPLE_CPU))
9c90a61c
ACM		 953 printf("%u ", sample->cpu);
954
7f3be652 955 if (sample_type & PERF_SAMPLE_TIME)
9486aa38 956 printf("%" PRIu64 " ", sample->time);
9c90a61c
ACM		 957}
958
9ede473c
JO		 959static void sample_read__printf(struct perf_sample *sample, u64 read_format)
960{
961 printf("... sample_read:\n");
962
963 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
964 printf("...... time enabled %016" PRIx64 "\n",
965 sample->read.time_enabled);
966
967 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
968 printf("...... time running %016" PRIx64 "\n",
969 sample->read.time_running);
970
971 if (read_format & PERF_FORMAT_GROUP) {
972 u64 i;
973
974 printf(".... group nr %" PRIu64 "\n", sample->read.group.nr);
975
976 for (i = 0; i < sample->read.group.nr; i++) {
977 struct sample_read_value *value;
978
979 value = &sample->read.group.values[i];
980 printf("..... id %016" PRIx64
981 ", value %016" PRIx64 "\n",
982 value->id, value->value);
983 }
984 } else
985 printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n",
986 sample->read.one.id, sample->read.one.value);
987}
988
9fa8727a 989static void dump_event(struct perf_evlist *evlist, union perf_event *event,
8d50e5b4 990 u64 file_offset, struct perf_sample *sample)
9aefcab0
TG		 991{
992 if (!dump_trace)
993 return;
994
9486aa38
ACM		 995 printf("\n%#" PRIx64 " [%#x]: event: %d\n",
996 file_offset, event->header.size, event->header.type);
9aefcab0
TG		 997
998 trace_event(event);
999
1000 if (sample)
9fa8727a 1001 perf_evlist__print_tstamp(evlist, event, sample);
9aefcab0 1002
9486aa38 1003 printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset,
8115d60c 1004 event->header.size, perf_event__name(event->header.type));
9aefcab0
TG		 1005}
1006
0f6a3015 1007static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
8d50e5b4 1008 struct perf_sample *sample)
9aefcab0 1009{
7f3be652
ACM		 1010 u64 sample_type;
1011
ddbc24b7
ACM		 1012 if (!dump_trace)
1013 return;
1014
0ea590ae 1015 printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
9486aa38 1016 event->header.misc, sample->pid, sample->tid, sample->ip,
7cec0922 1017 sample->period, sample->addr);
9aefcab0 1018
0f6a3015 1019 sample_type = evsel->attr.sample_type;
7f3be652
ACM		 1020
1021 if (sample_type & PERF_SAMPLE_CALLCHAIN)
384b6055 1022 callchain__printf(evsel, sample);
b5387528 1023
384b6055 1024 if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel))
b5387528 1025 branch_stack__printf(sample);
0f6a3015
JO		 1026
1027 if (sample_type & PERF_SAMPLE_REGS_USER)
352ea45a 1028 regs_user__printf(sample);
0f6a3015 1029
6a21c0b5
SE		 1030 if (sample_type & PERF_SAMPLE_REGS_INTR)
1031 regs_intr__printf(sample);
1032
0f6a3015
JO		 1033 if (sample_type & PERF_SAMPLE_STACK_USER)
1034 stack_user__printf(&sample->user_stack);
05484298
AK		 1035
1036 if (sample_type & PERF_SAMPLE_WEIGHT)
1037 printf("... weight: %" PRIu64 "\n", sample->weight);
98a3b32c
SE		 1038
1039 if (sample_type & PERF_SAMPLE_DATA_SRC)
1040 printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
9ede473c 1041
475eeab9
AK		 1042 if (sample_type & PERF_SAMPLE_TRANSACTION)
1043 printf("... transaction: %" PRIx64 "\n", sample->transaction);
1044
9ede473c
JO		 1045 if (sample_type & PERF_SAMPLE_READ)
1046 sample_read__printf(sample, evsel->attr.read_format);
9aefcab0
TG		 1047}
1048
54245fdc 1049static struct machine *machines__find_for_cpumode(struct machines *machines,
ef89325f
AH		 1050 union perf_event *event,
1051 struct perf_sample *sample)
743eb868
ACM		 1052{
1053 const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
ad85ace0 1054 struct machine *machine;
743eb868 1055
7c0f4a41
DA		 1056 if (perf_guest &&
1057 ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
1058 (cpumode == PERF_RECORD_MISC_GUEST_USER))) {
7fb0a5ee
ND		 1059 u32 pid;
1060
5c5e854b
SE		 1061 if (event->header.type == PERF_RECORD_MMAP
1062 || event->header.type == PERF_RECORD_MMAP2)
7fb0a5ee
ND		 1063 pid = event->mmap.pid;
1064 else
ef89325f 1065 pid = sample->pid;
7fb0a5ee 1066
54245fdc 1067 machine = machines__find(machines, pid);
ad85ace0 1068 if (!machine)
54245fdc 1069 machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID);
ad85ace0 1070 return machine;
7fb0a5ee 1071 }
743eb868 1072
54245fdc 1073 return &machines->host;
743eb868
ACM		 1074}
1075
313e53b0 1076static int deliver_sample_value(struct perf_evlist *evlist,
e4caec0d
JO		 1077 struct perf_tool *tool,
1078 union perf_event *event,
1079 struct perf_sample *sample,
1080 struct sample_read_value *v,
1081 struct machine *machine)
1082{
313e53b0 1083 struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id);
e4caec0d 1084
e4caec0d
JO		 1085 if (sid) {
1086 sample->id = v->id;
1087 sample->period = v->value - sid->period;
1088 sid->period = v->value;
1089 }
1090
1091 if (!sid || sid->evsel == NULL) {
313e53b0 1092 ++evlist->stats.nr_unknown_id;
e4caec0d
JO		 1093 return 0;
1094 }
1095
1096 return tool->sample(tool, event, sample, sid->evsel, machine);
1097}
1098
313e53b0 1099static int deliver_sample_group(struct perf_evlist *evlist,
e4caec0d
JO		 1100 struct perf_tool *tool,
1101 union perf_event *event,
1102 struct perf_sample *sample,
1103 struct machine *machine)
1104{
1105 int ret = -EINVAL;
1106 u64 i;
1107
1108 for (i = 0; i < sample->read.group.nr; i++) {
313e53b0 1109 ret = deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1110 &sample->read.group.values[i],
1111 machine);
1112 if (ret)
1113 break;
1114 }
1115
1116 return ret;
1117}
1118
1119static int
313e53b0 1120 perf_evlist__deliver_sample(struct perf_evlist *evlist,
e4caec0d
JO		 1121 struct perf_tool *tool,
1122 union perf_event *event,
1123 struct perf_sample *sample,
1124 struct perf_evsel *evsel,
1125 struct machine *machine)
1126{
1127 /* We know evsel != NULL. */
1128 u64 sample_type = evsel->attr.sample_type;
1129 u64 read_format = evsel->attr.read_format;
1130
1131 /* Standard sample delievery. */
1132 if (!(sample_type & PERF_SAMPLE_READ))
1133 return tool->sample(tool, event, sample, evsel, machine);
1134
1135 /* For PERF_SAMPLE_READ we have either single or group mode. */
1136 if (read_format & PERF_FORMAT_GROUP)
313e53b0 1137 return deliver_sample_group(evlist, tool, event, sample,
e4caec0d
JO		 1138 machine);
1139 else
313e53b0 1140 return deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1141 &sample->read.one, machine);
1142}
1143
d10eb1eb
ACM		 1144static int machines__deliver_event(struct machines *machines,
1145 struct perf_evlist *evlist,
1146 union perf_event *event,
1147 struct perf_sample *sample,
1148 struct perf_tool *tool, u64 file_offset)
cbf41645 1149{
9e69c210 1150 struct perf_evsel *evsel;
743eb868 1151 struct machine *machine;
9e69c210 1152
9fa8727a 1153 dump_event(evlist, event, file_offset, sample);
532e7269 1154
313e53b0 1155 evsel = perf_evlist__id2evsel(evlist, sample->id);
7b27509f 1156
fa713a4e 1157 machine = machines__find_for_cpumode(machines, event, sample);
743eb868 1158
cbf41645
TG		 1159 switch (event->header.type) {
1160 case PERF_RECORD_SAMPLE:
9e69c210 1161 if (evsel == NULL) {
313e53b0 1162 ++evlist->stats.nr_unknown_id;
6782206b 1163 return 0;
9e69c210 1164 }
1b29ac59 1165 dump_sample(evsel, event, sample);
0c095715 1166 if (machine == NULL) {
313e53b0 1167 ++evlist->stats.nr_unprocessable_samples;
6782206b 1168 return 0;
0c095715 1169 }
313e53b0 1170 return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
cbf41645 1171 case PERF_RECORD_MMAP:
45694aa7 1172 return tool->mmap(tool, event, sample, machine);
5c5e854b 1173 case PERF_RECORD_MMAP2:
930e6fcd
KL		 1174 if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT)
1175 ++evlist->stats.nr_proc_map_timeout;
5c5e854b 1176 return tool->mmap2(tool, event, sample, machine);
cbf41645 1177 case PERF_RECORD_COMM:
45694aa7 1178 return tool->comm(tool, event, sample, machine);
cbf41645 1179 case PERF_RECORD_FORK:
45694aa7 1180 return tool->fork(tool, event, sample, machine);
cbf41645 1181 case PERF_RECORD_EXIT:
45694aa7 1182 return tool->exit(tool, event, sample, machine);
cbf41645 1183 case PERF_RECORD_LOST:
45694aa7 1184 if (tool->lost == perf_event__process_lost)
313e53b0 1185 evlist->stats.total_lost += event->lost.lost;
45694aa7 1186 return tool->lost(tool, event, sample, machine);
c4937a91
KL		 1187 case PERF_RECORD_LOST_SAMPLES:
1188 if (tool->lost_samples == perf_event__process_lost_samples)
1189 evlist->stats.total_lost_samples += event->lost_samples.lost;
1190 return tool->lost_samples(tool, event, sample, machine);
cbf41645 1191 case PERF_RECORD_READ:
45694aa7 1192 return tool->read(tool, event, sample, evsel, machine);
cbf41645 1193 case PERF_RECORD_THROTTLE:
45694aa7 1194 return tool->throttle(tool, event, sample, machine);
cbf41645 1195 case PERF_RECORD_UNTHROTTLE:
45694aa7 1196 return tool->unthrottle(tool, event, sample, machine);
4a96f7a0 1197 case PERF_RECORD_AUX:
a38f48e3
AH		 1198 if (tool->aux == perf_event__process_aux &&
1199 (event->aux.flags & PERF_AUX_FLAG_TRUNCATED))
1200 evlist->stats.total_aux_lost += 1;
4a96f7a0 1201 return tool->aux(tool, event, sample, machine);
0ad21f68
AH		 1202 case PERF_RECORD_ITRACE_START:
1203 return tool->itrace_start(tool, event, sample, machine);
0286039f
AH		 1204 case PERF_RECORD_SWITCH:
1205 case PERF_RECORD_SWITCH_CPU_WIDE:
1206 return tool->context_switch(tool, event, sample, machine);
cbf41645 1207 default:
313e53b0 1208 ++evlist->stats.nr_unknown_events;
cbf41645
TG		 1209 return -1;
1210 }
1211}
1212
c446870d
AH		 1213static int perf_session__deliver_event(struct perf_session *session,
1214 union perf_event *event,
1215 struct perf_sample *sample,
1216 struct perf_tool *tool,
1217 u64 file_offset)
1218{
1219 int ret;
1220
1221 ret = auxtrace__process_event(session, event, sample, tool);
1222 if (ret < 0)
1223 return ret;
1224 if (ret > 0)
1225 return 0;
1226
1227 return machines__deliver_event(&session->machines, session->evlist,
1228 event, sample, tool, file_offset);
1229}
1230
d5652d86
AH		 1231static s64 perf_session__process_user_event(struct perf_session *session,
1232 union perf_event *event,
d5652d86 1233 u64 file_offset)
06aae590 1234{
d704ebda 1235 struct ordered_events *oe = &session->ordered_events;
9870d780 1236 struct perf_tool *tool = session->tool;
cc9784bd 1237 int fd = perf_data_file__fd(session->file);
10d0f086
ACM		 1238 int err;
1239
9fa8727a 1240 dump_event(session->evlist, event, file_offset, NULL);
06aae590 1241
cbf41645 1242 /* These events are processed right away */
06aae590 1243 switch (event->header.type) {
2c46dbb5 1244 case PERF_RECORD_HEADER_ATTR:
47c3d109 1245 err = tool->attr(tool, event, &session->evlist);
cfe1c414 1246 if (err == 0) {
7b56cce2 1247 perf_session__set_id_hdr_size(session);
cfe1c414
AH		 1248 perf_session__set_comm_exec(session);
1249 }
10d0f086 1250 return err;
f67697bd
JO		 1251 case PERF_RECORD_HEADER_EVENT_TYPE:
1252 /*
1253 * Depreceated, but we need to handle it for sake
1254 * of old data files create in pipe mode.
1255 */
1256 return 0;
9215545e
TZ		 1257 case PERF_RECORD_HEADER_TRACING_DATA:
1258 /* setup for reading amidst mmap */
cc9784bd 1259 lseek(fd, file_offset, SEEK_SET);
47c3d109 1260 return tool->tracing_data(tool, event, session);
c7929e47 1261 case PERF_RECORD_HEADER_BUILD_ID:
45694aa7 1262 return tool->build_id(tool, event, session);
d6b17beb 1263 case PERF_RECORD_FINISHED_ROUND:
d704ebda 1264 return tool->finished_round(tool, event, oe);
3c659eed
AH		 1265 case PERF_RECORD_ID_INDEX:
1266 return tool->id_index(tool, event, session);
a16ac023
AH		 1267 case PERF_RECORD_AUXTRACE_INFO:
1268 return tool->auxtrace_info(tool, event, session);
1269 case PERF_RECORD_AUXTRACE:
1270 /* setup for reading amidst mmap */
1271 lseek(fd, file_offset + event->header.size, SEEK_SET);
1272 return tool->auxtrace(tool, event, session);
e9bf54d2 1273 case PERF_RECORD_AUXTRACE_ERROR:
85ed4729 1274 perf_session__auxtrace_error_inc(session, event);
e9bf54d2 1275 return tool->auxtrace_error(tool, event, session);
5f3339d2
JO		 1276 case PERF_RECORD_THREAD_MAP:
1277 return tool->thread_map(tool, event, session);
6640b6c2
JO		 1278 case PERF_RECORD_CPU_MAP:
1279 return tool->cpu_map(tool, event, session);
374fb9e3
JO		 1280 case PERF_RECORD_STAT_CONFIG:
1281 return tool->stat_config(tool, event, session);
06aae590 1282 default:
ba74f064 1283 return -EINVAL;
06aae590 1284 }
ba74f064
TG		 1285}
1286
a293829d
AH		 1287int perf_session__deliver_synth_event(struct perf_session *session,
1288 union perf_event *event,
b7b61cbe 1289 struct perf_sample *sample)
a293829d 1290{
fa713a4e 1291 struct perf_evlist *evlist = session->evlist;
9870d780 1292 struct perf_tool *tool = session->tool;
fa713a4e
ACM		 1293
1294 events_stats__inc(&evlist->stats, event->header.type);
a293829d
AH		 1295
1296 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1297 return perf_session__process_user_event(session, event, 0);
a293829d 1298
fa713a4e 1299 return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0);
a293829d
AH		 1300}
1301
268fb20f
JO		 1302static void event_swap(union perf_event *event, bool sample_id_all)
1303{
1304 perf_event__swap_op swap;
1305
1306 swap = perf_event__swap_ops[event->header.type];
1307 if (swap)
1308 swap(event, sample_id_all);
1309}
1310
5a52f33a
AH		 1311int perf_session__peek_event(struct perf_session *session, off_t file_offset,
1312 void *buf, size_t buf_sz,
1313 union perf_event **event_ptr,
1314 struct perf_sample *sample)
1315{
1316 union perf_event *event;
1317 size_t hdr_sz, rest;
1318 int fd;
1319
1320 if (session->one_mmap && !session->header.needs_swap) {
1321 event = file_offset - session->one_mmap_offset +
1322 session->one_mmap_addr;
1323 goto out_parse_sample;
1324 }
1325
1326 if (perf_data_file__is_pipe(session->file))
1327 return -1;
1328
1329 fd = perf_data_file__fd(session->file);
1330 hdr_sz = sizeof(struct perf_event_header);
1331
1332 if (buf_sz < hdr_sz)
1333 return -1;
1334
1335 if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 ||
554e92ed 1336 readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz)
5a52f33a
AH		 1337 return -1;
1338
1339 event = (union perf_event *)buf;
1340
1341 if (session->header.needs_swap)
1342 perf_event_header__bswap(&event->header);
1343
554e92ed 1344 if (event->header.size < hdr_sz || event->header.size > buf_sz)
5a52f33a
AH		 1345 return -1;
1346
1347 rest = event->header.size - hdr_sz;
1348
554e92ed 1349 if (readn(fd, buf, rest) != (ssize_t)rest)
5a52f33a
AH		 1350 return -1;
1351
1352 if (session->header.needs_swap)
1353 event_swap(event, perf_evlist__sample_id_all(session->evlist));
1354
1355out_parse_sample:
1356
1357 if (sample && event->header.type < PERF_RECORD_USER_TYPE_START &&
1358 perf_evlist__parse_sample(session->evlist, event, sample))
1359 return -1;
1360
1361 *event_ptr = event;
1362
1363 return 0;
1364}
1365
d5652d86 1366static s64 perf_session__process_event(struct perf_session *session,
b7b61cbe 1367 union perf_event *event, u64 file_offset)
ba74f064 1368{
313e53b0 1369 struct perf_evlist *evlist = session->evlist;
9870d780 1370 struct perf_tool *tool = session->tool;
8d50e5b4 1371 struct perf_sample sample;
ba74f064
TG		 1372 int ret;
1373
268fb20f 1374 if (session->header.needs_swap)
313e53b0 1375 event_swap(event, perf_evlist__sample_id_all(evlist));
ba74f064
TG		 1376
1377 if (event->header.type >= PERF_RECORD_HEADER_MAX)
1378 return -EINVAL;
1379
313e53b0 1380 events_stats__inc(&evlist->stats, event->header.type);
ba74f064
TG		 1381
1382 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1383 return perf_session__process_user_event(session, event, file_offset);
cbf41645 1384
3dfc2c0a
TG		 1385 /*
1386 * For all kernel events we get the sample data
1387 */
313e53b0 1388 ret = perf_evlist__parse_sample(evlist, event, &sample);
5538beca
FW		 1389 if (ret)
1390 return ret;
3dfc2c0a 1391
0a8cb85c 1392 if (tool->ordered_events) {
b7b61cbe 1393 ret = perf_session__queue_event(session, event, &sample, file_offset);
cbf41645
TG		 1394 if (ret != -ETIME)
1395 return ret;
1396 }
1397
c446870d
AH		 1398 return perf_session__deliver_event(session, event, &sample, tool,
1399 file_offset);
06aae590
ACM		 1400}
1401
316c7136 1402void perf_event_header__bswap(struct perf_event_header *hdr)
ba21594c 1403{
316c7136
ACM		 1404 hdr->type = bswap_32(hdr->type);
1405 hdr->misc = bswap_16(hdr->misc);
1406 hdr->size = bswap_16(hdr->size);
ba21594c
ACM		 1407}
1408
b424eba2
ACM		 1409struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
1410{
1fcb8768 1411 return machine__findnew_thread(&session->machines.host, -1, pid);
b424eba2
ACM		 1412}
1413
9d8b172f 1414int perf_session__register_idle_thread(struct perf_session *session)
06aae590 1415{
1fcb8768 1416 struct thread *thread;
9d8b172f 1417 int err = 0;
06aae590 1418
1fcb8768 1419 thread = machine__findnew_thread(&session->machines.host, 0, 0);
162f0bef 1420 if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
06aae590 1421 pr_err("problem inserting idle task.\n");
9d8b172f 1422 err = -1;
06aae590
ACM		 1423 }
1424
9d8b172f
MH		 1425 /* machine__findnew_thread() got the thread, so put it */
1426 thread__put(thread);
1427 return err;
06aae590
ACM		 1428}
1429
9870d780 1430static void perf_session__warn_about_errors(const struct perf_session *session)
11095994 1431{
9870d780
ACM		 1432 const struct events_stats *stats = &session->evlist->stats;
1433 const struct ordered_events *oe = &session->ordered_events;
1434
1435 if (session->tool->lost == perf_event__process_lost &&
ccda068f 1436 stats->nr_events[PERF_RECORD_LOST] != 0) {
7b27509f
ACM		 1437 ui__warning("Processed %d events and lost %d chunks!\n\n"
1438 "Check IO/CPU overload!\n\n",
ccda068f
ACM		 1439 stats->nr_events[0],
1440 stats->nr_events[PERF_RECORD_LOST]);
11095994
ACM		 1441 }
1442
c4937a91
KL		 1443 if (session->tool->lost_samples == perf_event__process_lost_samples) {
1444 double drop_rate;
1445
1446 drop_rate = (double)stats->total_lost_samples /
1447 (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples);
1448 if (drop_rate > 0.05) {
6ba29c2f 1449 ui__warning("Processed %" PRIu64 " samples and lost %3.2f%% samples!\n\n",
c4937a91
KL		 1450 stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples,
1451 drop_rate * 100.0);
1452 }
1453 }
1454
a38f48e3
AH		 1455 if (session->tool->aux == perf_event__process_aux &&
1456 stats->total_aux_lost != 0) {
1457 ui__warning("AUX data lost %" PRIu64 " times out of %u!\n\n",
1458 stats->total_aux_lost,
1459 stats->nr_events[PERF_RECORD_AUX]);
1460 }
1461
ccda068f 1462 if (stats->nr_unknown_events != 0) {
11095994
ACM		 1463 ui__warning("Found %u unknown events!\n\n"
1464 "Is this an older tool processing a perf.data "
1465 "file generated by a more recent tool?\n\n"
1466 "If that is not the case, consider "
1467 "reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f 1468 stats->nr_unknown_events);
11095994
ACM		 1469 }
1470
ccda068f 1471 if (stats->nr_unknown_id != 0) {
9e69c210 1472 ui__warning("%u samples with id not present in the header\n",
ccda068f 1473 stats->nr_unknown_id);
9e69c210
ACM		 1474 }
1475
ccda068f 1476 if (stats->nr_invalid_chains != 0) {
75be989a
ACM		 1477 ui__warning("Found invalid callchains!\n\n"
1478 "%u out of %u events were discarded for this reason.\n\n"
1479 "Consider reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f
ACM		 1480 stats->nr_invalid_chains,
1481 stats->nr_events[PERF_RECORD_SAMPLE]);
75be989a 1482 }
0c095715 1483
ccda068f 1484 if (stats->nr_unprocessable_samples != 0) {
0c095715
JR		 1485 ui__warning("%u unprocessable samples recorded.\n"
1486 "Do you have a KVM guest running and not using 'perf kvm'?\n",
ccda068f 1487 stats->nr_unprocessable_samples);
0c095715 1488 }
f61ff6c0 1489
9870d780
ACM		 1490 if (oe->nr_unordered_events != 0)
1491 ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events);
85ed4729
AH		 1492
1493 events_stats__auxtrace_error_warn(stats);
930e6fcd
KL		 1494
1495 if (stats->nr_proc_map_timeout != 0) {
1496 ui__warning("%d map information files for pre-existing threads were\n"
1497 "not processed, if there are samples for addresses they\n"
1498 "will not be resolved, you may find out which are these\n"
1499 "threads by running with -v and redirecting the output\n"
9d9cad76
KL		 1500 "to a file.\n"
1501 "The time limit to process proc map is too short?\n"
1502 "Increase it by --proc-map-timeout\n",
930e6fcd
KL		 1503 stats->nr_proc_map_timeout);
1504 }
11095994
ACM		 1505}
1506
a5499b37
AH		 1507static int perf_session__flush_thread_stack(struct thread *thread,
1508 void *p __maybe_unused)
1509{
1510 return thread_stack__flush(thread);
1511}
1512
1513static int perf_session__flush_thread_stacks(struct perf_session *session)
1514{
1515 return machines__for_each_thread(&session->machines,
1516 perf_session__flush_thread_stack,
1517 NULL);
1518}
1519
8dc58101
TZ		 1520volatile int session_done;
1521
b7b61cbe 1522static int __perf_session__process_pipe_events(struct perf_session *session)
8dc58101 1523{
fa713a4e 1524 struct ordered_events *oe = &session->ordered_events;
9870d780 1525 struct perf_tool *tool = session->tool;
316c7136 1526 int fd = perf_data_file__fd(session->file);
444d2866
SE		 1527 union perf_event *event;
1528 uint32_t size, cur_size = 0;
1529 void *buf = NULL;
d5652d86 1530 s64 skip = 0;
8dc58101 1531 u64 head;
727ebd54 1532 ssize_t err;
8dc58101
TZ		 1533 void *p;
1534
45694aa7 1535 perf_tool__fill_defaults(tool);
8dc58101
TZ		 1536
1537 head = 0;
444d2866
SE		 1538 cur_size = sizeof(union perf_event);
1539
1540 buf = malloc(cur_size);
1541 if (!buf)
1542 return -errno;
8dc58101 1543more:
444d2866 1544 event = buf;
cc9784bd 1545 err = readn(fd, event, sizeof(struct perf_event_header));
8dc58101
TZ		 1546 if (err <= 0) {
1547 if (err == 0)
1548 goto done;
1549
1550 pr_err("failed to read event header\n");
1551 goto out_err;
1552 }
1553
316c7136 1554 if (session->header.needs_swap)
444d2866 1555 perf_event_header__bswap(&event->header);
8dc58101 1556
444d2866 1557 size = event->header.size;
27389d78
AH		 1558 if (size < sizeof(struct perf_event_header)) {
1559 pr_err("bad event header size\n");
1560 goto out_err;
1561 }
8dc58101 1562
444d2866
SE		 1563 if (size > cur_size) {
1564 void *new = realloc(buf, size);
1565 if (!new) {
1566 pr_err("failed to allocate memory to read event\n");
1567 goto out_err;
1568 }
1569 buf = new;
1570 cur_size = size;
1571 event = buf;
1572 }
1573 p = event;
8dc58101
TZ		 1574 p += sizeof(struct perf_event_header);
1575
794e43b5 1576 if (size - sizeof(struct perf_event_header)) {
cc9784bd 1577 err = readn(fd, p, size - sizeof(struct perf_event_header));
794e43b5
TZ		 1578 if (err <= 0) {
1579 if (err == 0) {
1580 pr_err("unexpected end of event stream\n");
1581 goto done;
1582 }
8dc58101 1583
794e43b5
TZ		 1584 pr_err("failed to read event data\n");
1585 goto out_err;
1586 }
8dc58101
TZ		 1587 }
1588
b7b61cbe 1589 if ((skip = perf_session__process_event(session, event, head)) < 0) {
9389a460 1590 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
444d2866 1591 head, event->header.size, event->header.type);
9389a460
JO		 1592 err = -EINVAL;
1593 goto out_err;
8dc58101
TZ		 1594 }
1595
1596 head += size;
1597
8dc58101
TZ		 1598 if (skip > 0)
1599 head += skip;
1600
1601 if (!session_done())
1602 goto more;
1603done:
8c16b649 1604 /* do the final flush for ordered samples */
b7b61cbe 1605 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1606 if (err)
1607 goto out_err;
1608 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1609 if (err)
1610 goto out_err;
1611 err = perf_session__flush_thread_stacks(session);
8dc58101 1612out_err:
444d2866 1613 free(buf);
9870d780 1614 perf_session__warn_about_errors(session);
adc56ed1 1615 ordered_events__free(&session->ordered_events);
c446870d 1616 auxtrace__free_events(session);
8dc58101
TZ		 1617 return err;
1618}
1619
998bedc8
FW		 1620static union perf_event *
1621fetch_mmaped_event(struct perf_session *session,
1622 u64 head, size_t mmap_size, char *buf)
1623{
1624 union perf_event *event;
1625
1626 /*
1627 * Ensure we have enough space remaining to read
1628 * the size of the event in the headers.
1629 */
1630 if (head + sizeof(event->header) > mmap_size)
1631 return NULL;
1632
1633 event = (union perf_event *)(buf + head);
1634
1635 if (session->header.needs_swap)
1636 perf_event_header__bswap(&event->header);
1637
27389d78
AH		 1638 if (head + event->header.size > mmap_size) {
1639 /* We're not fetching the event so swap back again */
1640 if (session->header.needs_swap)
1641 perf_event_header__bswap(&event->header);
998bedc8 1642 return NULL;
27389d78 1643 }
998bedc8
FW		 1644
1645 return event;
1646}
1647
35d48ddf
DM		 1648/*
1649 * On 64bit we can mmap the data file in one go. No need for tiny mmap
1650 * slices. On 32bit we use 32MB.
1651 */
1652#if BITS_PER_LONG == 64
1653#define MMAP_SIZE ULLONG_MAX
1654#define NUM_MMAPS 1
1655#else
1656#define MMAP_SIZE (32 * 1024 * 1024ULL)
1657#define NUM_MMAPS 128
1658#endif
1659
4ac30cf7
NK		 1660static int __perf_session__process_events(struct perf_session *session,
1661 u64 data_offset, u64 data_size,
b7b61cbe 1662 u64 file_size)
06aae590 1663{
fa713a4e 1664 struct ordered_events *oe = &session->ordered_events;
9870d780 1665 struct perf_tool *tool = session->tool;
cc9784bd 1666 int fd = perf_data_file__fd(session->file);
d5652d86 1667 u64 head, page_offset, file_offset, file_pos, size;
fe174207 1668 int err, mmap_prot, mmap_flags, map_idx = 0;
0c1fe6b2 1669 size_t mmap_size;
35d48ddf 1670 char *buf, *mmaps[NUM_MMAPS];
8115d60c 1671 union perf_event *event;
4d3001fd 1672 struct ui_progress prog;
d5652d86 1673 s64 skip;
0331ee0c 1674
45694aa7 1675 perf_tool__fill_defaults(tool);
06aae590 1676
0331ee0c
TG		 1677 page_offset = page_size * (data_offset / page_size);
1678 file_offset = page_offset;
1679 head = data_offset - page_offset;
06aae590 1680
381c02f6
MR		 1681 if (data_size == 0)
1682 goto out;
1683
1684 if (data_offset + data_size < file_size)
d6513281
TG		 1685 file_size = data_offset + data_size;
1686
4d3001fd 1687 ui_progress__init(&prog, file_size, "Processing events...");
55b44629 1688
35d48ddf 1689 mmap_size = MMAP_SIZE;
919d86d3 1690 if (mmap_size > file_size) {
55b44629 1691 mmap_size = file_size;
919d86d3
AH		 1692 session->one_mmap = true;
1693 }
55b44629 1694
fe174207
TG		 1695 memset(mmaps, 0, sizeof(mmaps));
1696
ba21594c
ACM		 1697 mmap_prot = PROT_READ;
1698 mmap_flags = MAP_SHARED;
1699
0331ee0c 1700 if (session->header.needs_swap) {
ba21594c
ACM		 1701 mmap_prot |= PROT_WRITE;
1702 mmap_flags = MAP_PRIVATE;
1703 }
06aae590 1704remap:
cc9784bd 1705 buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd,
55b44629 1706 file_offset);
06aae590
ACM		 1707 if (buf == MAP_FAILED) {
1708 pr_err("failed to mmap file\n");
1709 err = -errno;
1710 goto out_err;
1711 }
fe174207
TG		 1712 mmaps[map_idx] = buf;
1713 map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1);
d6513281 1714 file_pos = file_offset + head;
919d86d3
AH		 1715 if (session->one_mmap) {
1716 session->one_mmap_addr = buf;
1717 session->one_mmap_offset = file_offset;
1718 }
06aae590
ACM		 1719
1720more:
998bedc8
FW		 1721 event = fetch_mmaped_event(session, head, mmap_size, buf);
1722 if (!event) {
fe174207
TG		 1723 if (mmaps[map_idx]) {
1724 munmap(mmaps[map_idx], mmap_size);
1725 mmaps[map_idx] = NULL;
1726 }
06aae590 1727
0331ee0c
TG		 1728 page_offset = page_size * (head / page_size);
1729 file_offset += page_offset;
1730 head -= page_offset;
06aae590
ACM		 1731 goto remap;
1732 }
1733
1734 size = event->header.size;
1735
27389d78 1736 if (size < sizeof(struct perf_event_header) ||
b7b61cbe 1737 (skip = perf_session__process_event(session, event, file_pos)) < 0) {
9389a460
JO		 1738 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
1739 file_offset + head, event->header.size,
1740 event->header.type);
1741 err = -EINVAL;
1742 goto out_err;
06aae590
ACM		 1743 }
1744
6f917c70
AH		 1745 if (skip)
1746 size += skip;
1747
06aae590 1748 head += size;
d6513281 1749 file_pos += size;
06aae590 1750
4d3001fd 1751 ui_progress__update(&prog, size);
55b44629 1752
33e940a2 1753 if (session_done())
8c16b649 1754 goto out;
33e940a2 1755
d6513281 1756 if (file_pos < file_size)
06aae590 1757 goto more;
d6513281 1758
8c16b649 1759out:
c61e52ee 1760 /* do the final flush for ordered samples */
b7b61cbe 1761 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1762 if (err)
1763 goto out_err;
1764 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1765 if (err)
1766 goto out_err;
1767 err = perf_session__flush_thread_stacks(session);
06aae590 1768out_err:
a5580f3e 1769 ui_progress__finish();
9870d780 1770 perf_session__warn_about_errors(session);
adc56ed1 1771 ordered_events__free(&session->ordered_events);
c446870d 1772 auxtrace__free_events(session);
919d86d3 1773 session->one_mmap = false;
06aae590
ACM		 1774 return err;
1775}
27295592 1776
b7b61cbe 1777int perf_session__process_events(struct perf_session *session)
6122e4e4 1778{
316c7136 1779 u64 size = perf_data_file__size(session->file);
6122e4e4
ACM		 1780 int err;
1781
9d8b172f 1782 if (perf_session__register_idle_thread(session) < 0)
6122e4e4
ACM		 1783 return -ENOMEM;
1784
316c7136
ACM		 1785 if (!perf_data_file__is_pipe(session->file))
1786 err = __perf_session__process_events(session,
1787 session->header.data_offset,
b7b61cbe 1788 session->header.data_size, size);
8dc58101 1789 else
b7b61cbe 1790 err = __perf_session__process_pipe_events(session);
88ca895d 1791
6122e4e4
ACM		 1792 return err;
1793}
1794
7f3be652 1795bool perf_session__has_traces(struct perf_session *session, const char *msg)
27295592 1796{
93ea01c2
DA		 1797 struct perf_evsel *evsel;
1798
0050f7aa 1799 evlist__for_each(session->evlist, evsel) {
93ea01c2
DA		 1800 if (evsel->attr.type == PERF_TYPE_TRACEPOINT)
1801 return true;
27295592
ACM		 1802 }
1803
93ea01c2
DA		 1804 pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
1805 return false;
27295592 1806}
56b03f3c 1807
743eb868
ACM		 1808int maps__set_kallsyms_ref_reloc_sym(struct map **maps,
1809 const char *symbol_name, u64 addr)
56b03f3c
ACM		 1810{
1811 char *bracket;
9de89fe7 1812 enum map_type i;
a1645ce1
ZY		 1813 struct ref_reloc_sym *ref;
1814
1815 ref = zalloc(sizeof(struct ref_reloc_sym));
1816 if (ref == NULL)
1817 return -ENOMEM;
56b03f3c 1818
a1645ce1
ZY		 1819 ref->name = strdup(symbol_name);
1820 if (ref->name == NULL) {
1821 free(ref);
56b03f3c 1822 return -ENOMEM;
a1645ce1 1823 }
56b03f3c 1824
a1645ce1 1825 bracket = strchr(ref->name, ']');
56b03f3c
ACM		 1826 if (bracket)
1827 *bracket = '\0';
1828
a1645ce1 1829 ref->addr = addr;
9de89fe7
ACM		 1830
1831 for (i = 0; i < MAP__NR_TYPES; ++i) {
a1645ce1 1832 struct kmap *kmap = map__kmap(maps[i]);
ba92732e
WN		 1833
1834 if (!kmap)
1835 continue;
a1645ce1 1836 kmap->ref_reloc_sym = ref;
9de89fe7
ACM		 1837 }
1838
56b03f3c
ACM		 1839 return 0;
1840}
1f626bc3 1841
316c7136 1842size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
1f626bc3 1843{
316c7136 1844 return machines__fprintf_dsos(&session->machines, fp);
1f626bc3 1845}
f869097e 1846
316c7136 1847size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
417c2ff6 1848 bool (skip)(struct dso *dso, int parm), int parm)
f869097e 1849{
316c7136 1850 return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
f869097e 1851}
e248de33
ACM		 1852
1853size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
1854{
c446870d
AH		 1855 size_t ret;
1856 const char *msg = "";
1857
1858 if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
1859 msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
1860
fe692ac8 1861 ret = fprintf(fp, "\nAggregated stats:%s\n", msg);
e248de33 1862
75be989a 1863 ret += events_stats__fprintf(&session->evlist->stats, fp);
e248de33
ACM		 1864 return ret;
1865}
c0230b2b 1866
b424eba2
ACM		 1867size_t perf_session__fprintf(struct perf_session *session, FILE *fp)
1868{
1869 /*
1870 * FIXME: Here we have to actually print all the machines in this
1871 * session, not just the host...
1872 */
876650e6 1873 return machine__fprintf(&session->machines.host, fp);
b424eba2
ACM		 1874}
1875
9cbdb702
DA		 1876struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
1877 unsigned int type)
1878{
1879 struct perf_evsel *pos;
1880
0050f7aa 1881 evlist__for_each(session->evlist, pos) {
9cbdb702
DA		 1882 if (pos->attr.type == type)
1883 return pos;
1884 }
1885 return NULL;
1886}
1887
a2cb3cf2 1888void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
cc22e575 1889 struct addr_location *al,
307cbb92 1890 unsigned int print_opts, unsigned int stack_depth)
c0230b2b 1891{
c0230b2b 1892 struct callchain_cursor_node *node;
a6ffaf91
DA		 1893 int print_ip = print_opts & PRINT_IP_OPT_IP;
1894 int print_sym = print_opts & PRINT_IP_OPT_SYM;
1895 int print_dso = print_opts & PRINT_IP_OPT_DSO;
1896 int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
b0b35f01 1897 int print_oneline = print_opts & PRINT_IP_OPT_ONELINE;
cc8fae1d 1898 int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE;
b0b35f01 1899 char s = print_oneline ? ' ' : '\t';
c0230b2b 1900
c0230b2b 1901 if (symbol_conf.use_callchain && sample->callchain) {
a2cb3cf2 1902 struct addr_location node_al;
c0230b2b 1903
cc8b7c2b
ACM		 1904 if (thread__resolve_callchain(al->thread, evsel,
1905 sample, NULL, NULL,
03cd1fed 1906 stack_depth) != 0) {
c0230b2b
DA		 1907 if (verbose)
1908 error("Failed to resolve callchain. Skipping\n");
1909 return;
1910 }
47260645 1911 callchain_cursor_commit(&callchain_cursor);
c0230b2b 1912
a2cb3cf2
AH		 1913 if (print_symoffset)
1914 node_al = *al;
1915
307cbb92 1916 while (stack_depth) {
a4eb24a4
AH		 1917 u64 addr = 0;
1918
47260645 1919 node = callchain_cursor_current(&callchain_cursor);
c0230b2b
DA		 1920 if (!node)
1921 break;
1922
d2ff1b14
DA		 1923 if (node->sym && node->sym->ignore)
1924 goto next;
1925
a6ffaf91 1926 if (print_ip)
b0b35f01 1927 printf("%c%16" PRIx64, s, node->ip);
a6ffaf91 1928
a4eb24a4
AH		 1929 if (node->map)
1930 addr = node->map->map_ip(node->map, node->ip);
1931
787bef17 1932 if (print_sym) {
547a92e0 1933 printf(" ");
251f426f 1934 if (print_symoffset) {
a4eb24a4 1935 node_al.addr = addr;
a2cb3cf2
AH		 1936 node_al.map = node->map;
1937 symbol__fprintf_symname_offs(node->sym, &node_al, stdout);
251f426f
DA		 1938 } else
1939 symbol__fprintf_symname(node->sym, stdout);
610723f2 1940 }
251f426f 1941
610723f2 1942 if (print_dso) {
547a92e0 1943 printf(" (");
52deff71 1944 map__fprintf_dsoname(node->map, stdout);
547a92e0 1945 printf(")");
787bef17 1946 }
b0b35f01 1947
cc8fae1d
AH		 1948 if (print_srcline)
1949 map__fprintf_srcline(node->map, addr, "\n ",
1950 stdout);
1951
b0b35f01
DA		 1952 if (!print_oneline)
1953 printf("\n");
c0230b2b 1954
307cbb92 1955 stack_depth--;
d2ff1b14
DA		 1956next:
1957 callchain_cursor_advance(&callchain_cursor);
c0230b2b
DA		 1958 }
1959
1960 } else {
a2cb3cf2 1961 if (al->sym && al->sym->ignore)
d2ff1b14
DA		 1962 return;
1963
a6ffaf91
DA		 1964 if (print_ip)
1965 printf("%16" PRIx64, sample->ip);
1966
787bef17 1967 if (print_sym) {
547a92e0 1968 printf(" ");
a978f2ab 1969 if (print_symoffset)
a2cb3cf2 1970 symbol__fprintf_symname_offs(al->sym, al,
a978f2ab
AN		 1971 stdout);
1972 else
a2cb3cf2 1973 symbol__fprintf_symname(al->sym, stdout);
610723f2
DA		 1974 }
1975
1976 if (print_dso) {
547a92e0 1977 printf(" (");
a2cb3cf2 1978 map__fprintf_dsoname(al->map, stdout);
547a92e0 1979 printf(")");
787bef17 1980 }
cc8fae1d
AH		 1981
1982 if (print_srcline)
1983 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
c0230b2b
DA		 1984 }
1985}
5d67be97
AB		 1986
1987int perf_session__cpu_bitmap(struct perf_session *session,
1988 const char *cpu_list, unsigned long *cpu_bitmap)
1989{
8bac41cb 1990 int i, err = -1;
5d67be97
AB		 1991 struct cpu_map *map;
1992
1993 for (i = 0; i < PERF_TYPE_MAX; ++i) {
1994 struct perf_evsel *evsel;
1995
1996 evsel = perf_session__find_first_evtype(session, i);
1997 if (!evsel)
1998 continue;
1999
2000 if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
2001 pr_err("File does not contain CPU events. "
2002 "Remove -c option to proceed.\n");
2003 return -1;
2004 }
2005 }
2006
2007 map = cpu_map__new(cpu_list);
47fbe53b
DA		 2008 if (map == NULL) {
2009 pr_err("Invalid cpu_list\n");
2010 return -1;
2011 }
5d67be97
AB		 2012
2013 for (i = 0; i < map->nr; i++) {
2014 int cpu = map->map[i];
2015
2016 if (cpu >= MAX_NR_CPUS) {
2017 pr_err("Requested CPU %d too large. "
2018 "Consider raising MAX_NR_CPUS\n", cpu);
8bac41cb 2019 goto out_delete_map;
5d67be97
AB		 2020 }
2021
2022 set_bit(cpu, cpu_bitmap);
2023 }
2024
8bac41cb
SF		 2025 err = 0;
2026
2027out_delete_map:
f30a79b0 2028 cpu_map__put(map);
8bac41cb 2029 return err;
5d67be97 2030}
fbe96f29
SE		 2031
2032void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
2033 bool full)
2034{
2035 struct stat st;
c5765ece 2036 int fd, ret;
fbe96f29
SE		 2037
2038 if (session == NULL || fp == NULL)
2039 return;
2040
c5765ece
MI		 2041 fd = perf_data_file__fd(session->file);
2042
cc9784bd 2043 ret = fstat(fd, &st);
fbe96f29
SE		 2044 if (ret == -1)
2045 return;
2046
2047 fprintf(fp, "# ========\n");
2048 fprintf(fp, "# captured on: %s", ctime(&st.st_ctime));
2049 perf_header__fprintf_info(session, fp, full);
2050 fprintf(fp, "# ========\n#\n");
2051}
da378962
ACM		 2052
2053
2054int __perf_session__set_tracepoints_handlers(struct perf_session *session,
2055 const struct perf_evsel_str_handler *assocs,
2056 size_t nr_assocs)
2057{
da378962 2058 struct perf_evsel *evsel;
da378962
ACM		 2059 size_t i;
2060 int err;
2061
2062 for (i = 0; i < nr_assocs; i++) {
ccf53eac
ACM		 2063 /*
2064 * Adding a handler for an event not in the session,
2065 * just ignore it.
2066 */
2067 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name);
da378962 2068 if (evsel == NULL)
ccf53eac 2069 continue;
da378962
ACM		 2070
2071 err = -EEXIST;
744a9719 2072 if (evsel->handler != NULL)
ccf53eac 2073 goto out;
744a9719 2074 evsel->handler = assocs[i].handler;
da378962
ACM		 2075 }
2076
2077 err = 0;
2078out:
2079 return err;
da378962 2080}
3c659eed
AH		 2081
2082int perf_event__process_id_index(struct perf_tool *tool __maybe_unused,
2083 union perf_event *event,
2084 struct perf_session *session)
2085{
2086 struct perf_evlist *evlist = session->evlist;
2087 struct id_index_event *ie = &event->id_index;
2088 size_t i, nr, max_nr;
2089
2090 max_nr = (ie->header.size - sizeof(struct id_index_event)) /
2091 sizeof(struct id_index_entry);
2092 nr = ie->nr;
2093 if (nr > max_nr)
2094 return -EINVAL;
2095
2096 if (dump_trace)
2097 fprintf(stdout, " nr: %zu\n", nr);
2098
2099 for (i = 0; i < nr; i++) {
2100 struct id_index_entry *e = &ie->entries[i];
2101 struct perf_sample_id *sid;
2102
2103 if (dump_trace) {
2104 fprintf(stdout, " ... id: %"PRIu64, e->id);
2105 fprintf(stdout, " idx: %"PRIu64, e->idx);
2106 fprintf(stdout, " cpu: %"PRId64, e->cpu);
2107 fprintf(stdout, " tid: %"PRId64"\n", e->tid);
2108 }
2109
2110 sid = perf_evlist__id2sid(evlist, e->id);
2111 if (!sid)
2112 return -ENOENT;
2113 sid->idx = e->idx;
2114 sid->cpu = e->cpu;
2115 sid->tid = e->tid;
2116 }
2117 return 0;
2118}
2119
2120int perf_event__synthesize_id_index(struct perf_tool *tool,
2121 perf_event__handler_t process,
2122 struct perf_evlist *evlist,
2123 struct machine *machine)
2124{
2125 union perf_event *ev;
2126 struct perf_evsel *evsel;
2127 size_t nr = 0, i = 0, sz, max_nr, n;
2128 int err;
2129
2130 pr_debug2("Synthesizing id index\n");
2131
2132 max_nr = (UINT16_MAX - sizeof(struct id_index_event)) /
2133 sizeof(struct id_index_entry);
2134
cba9b847 2135 evlist__for_each(evlist, evsel)
3c659eed
AH		 2136 nr += evsel->ids;
2137
2138 n = nr > max_nr ? max_nr : nr;
2139 sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry);
2140 ev = zalloc(sz);
2141 if (!ev)
2142 return -ENOMEM;
2143
2144 ev->id_index.header.type = PERF_RECORD_ID_INDEX;
2145 ev->id_index.header.size = sz;
2146 ev->id_index.nr = n;
2147
cba9b847 2148 evlist__for_each(evlist, evsel) {
3c659eed
AH		 2149 u32 j;
2150
2151 for (j = 0; j < evsel->ids; j++) {
2152 struct id_index_entry *e;
2153 struct perf_sample_id *sid;
2154
2155 if (i >= n) {
2156 err = process(tool, ev, NULL, machine);
2157 if (err)
2158 goto out_err;
2159 nr -= n;
2160 i = 0;
2161 }
2162
2163 e = &ev->id_index.entries[i++];
2164
2165 e->id = evsel->id[j];
2166
2167 sid = perf_evlist__id2sid(evlist, e->id);
2168 if (!sid) {
2169 free(ev);
2170 return -ENOENT;
2171 }
2172
2173 e->idx = sid->idx;
2174 e->cpu = sid->cpu;
2175 e->tid = sid->tid;
2176 }
2177 }
2178
2179 sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry);
2180 ev->id_index.header.size = sz;
2181 ev->id_index.nr = nr;
2182
2183 err = process(tool, ev, NULL, machine);
2184out_err:
2185 free(ev);
2186
2187 return err;
2188}
Linux kernel - Deliverables
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