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