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perf bpf: Save bpf_prog_info in a rbtree in perf_env
[thirdparty/linux.git] / tools / perf / util / session.c
CommitLineData
b2441318 1// SPDX-License-Identifier: GPL-2.0
a43783ae 2#include <errno.h>
fd20e811 3#include <inttypes.h>
94c744b6 4#include <linux/kernel.h>
4e319027 5#include <traceevent/event-parse.h>
05a1f47e 6#include <api/fs/fs.h>
94c744b6 7
ba21594c 8#include <byteswap.h>
94c744b6
ACM		 9#include <unistd.h>
10#include <sys/types.h>
a41794cd 11#include <sys/mman.h>
94c744b6 12
e248de33
ACM		 13#include "evlist.h"
14#include "evsel.h"
98521b38 15#include "memswap.h"
1101f69a 16#include "map.h"
daecf9e0 17#include "symbol.h"
94c744b6 18#include "session.h"
45694aa7 19#include "tool.h"
a328626b 20#include "sort.h"
94c744b6 21#include "util.h"
5d67be97 22#include "cpumap.h"
0f6a3015 23#include "perf_regs.h"
b0a45203 24#include "asm/bug.h"
c446870d 25#include "auxtrace.h"
e7ff8920 26#include "thread.h"
a5499b37 27#include "thread-stack.h"
93115d32 28#include "sample-raw.h"
2d2aea6a 29#include "stat.h"
ec1891af 30#include "arch/common.h"
94c744b6 31
c446870d
AH		 32static int perf_session__deliver_event(struct perf_session *session,
33 union perf_event *event,
c446870d
AH		 34 struct perf_tool *tool,
35 u64 file_offset);
d10eb1eb 36
316c7136 37static int perf_session__open(struct perf_session *session)
94c744b6 38{
8ceb41d7 39 struct perf_data *data = session->data;
8dc58101 40
316c7136 41 if (perf_session__read_header(session) < 0) {
e87b4911 42 pr_err("incompatible file format (rerun with -v to learn more)\n");
6a4d98d7 43 return -1;
94c744b6
ACM		 44 }
45
8ceb41d7 46 if (perf_data__is_pipe(data))
cc9784bd
JO		 47 return 0;
48
3ba78bd0
JO		 49 if (perf_header__has_feat(&session->header, HEADER_STAT))
50 return 0;
51
316c7136 52 if (!perf_evlist__valid_sample_type(session->evlist)) {
e87b4911 53 pr_err("non matching sample_type\n");
6a4d98d7 54 return -1;
c2a70653
ACM		 55 }
56
316c7136 57 if (!perf_evlist__valid_sample_id_all(session->evlist)) {
e87b4911 58 pr_err("non matching sample_id_all\n");
6a4d98d7 59 return -1;
c2a70653
ACM		 60 }
61
316c7136 62 if (!perf_evlist__valid_read_format(session->evlist)) {
e87b4911 63 pr_err("non matching read_format\n");
6a4d98d7 64 return -1;
9ede473c
JO		 65 }
66
94c744b6 67 return 0;
94c744b6
ACM		 68}
69
7b56cce2 70void perf_session__set_id_hdr_size(struct perf_session *session)
9c90a61c 71{
7b56cce2
ACM		 72 u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist);
73
7b56cce2 74 machines__set_id_hdr_size(&session->machines, id_hdr_size);
9c90a61c
ACM		 75}
76
316c7136 77int perf_session__create_kernel_maps(struct perf_session *session)
a1645ce1 78{
316c7136 79 int ret = machine__create_kernel_maps(&session->machines.host);
a1645ce1 80
a1645ce1 81 if (ret >= 0)
316c7136 82 ret = machines__create_guest_kernel_maps(&session->machines);
a1645ce1
ZY		 83 return ret;
84}
85
316c7136 86static void perf_session__destroy_kernel_maps(struct perf_session *session)
076c6e45 87{
316c7136 88 machines__destroy_kernel_maps(&session->machines);
076c6e45
ACM		 89}
90
cfe1c414
AH		 91static bool perf_session__has_comm_exec(struct perf_session *session)
92{
93 struct perf_evsel *evsel;
94
e5cadb93 95 evlist__for_each_entry(session->evlist, evsel) {
cfe1c414
AH		 96 if (evsel->attr.comm_exec)
97 return true;
98 }
99
100 return false;
101}
102
103static void perf_session__set_comm_exec(struct perf_session *session)
104{
105 bool comm_exec = perf_session__has_comm_exec(session);
106
107 machines__set_comm_exec(&session->machines, comm_exec);
108}
109
d10eb1eb 110static int ordered_events__deliver_event(struct ordered_events *oe,
9870d780 111 struct ordered_event *event)
d10eb1eb 112{
9870d780
ACM		 113 struct perf_session *session = container_of(oe, struct perf_session,
114 ordered_events);
9870d780 115
93d10af2 116 return perf_session__deliver_event(session, event->event,
c446870d 117 session->tool, event->file_offset);
d10eb1eb
ACM		 118}
119
8ceb41d7 120struct perf_session *perf_session__new(struct perf_data *data,
f5fc1412 121 bool repipe, struct perf_tool *tool)
94c744b6 122{
316c7136 123 struct perf_session *session = zalloc(sizeof(*session));
efad1415 124
316c7136 125 if (!session)
94c744b6
ACM		 126 goto out;
127
316c7136 128 session->repipe = repipe;
9870d780 129 session->tool = tool;
99fa2984 130 INIT_LIST_HEAD(&session->auxtrace_index);
316c7136 131 machines__init(&session->machines);
a4a6668a
JO		 132 ordered_events__init(&session->ordered_events,
133 ordered_events__deliver_event, NULL);
94c744b6 134
e4378f0c 135 perf_env__init(&session->header.env);
8ceb41d7
JO		 136 if (data) {
137 if (perf_data__open(data))
64abebf7 138 goto out_delete;
6a4d98d7 139
8ceb41d7 140 session->data = data;
6a4d98d7 141
8ceb41d7 142 if (perf_data__is_read(data)) {
316c7136 143 if (perf_session__open(session) < 0)
befa09b6 144 goto out_delete;
6a4d98d7 145
0973ad97
DCC		 146 /*
147 * set session attributes that are present in perf.data
148 * but not in pipe-mode.
149 */
8ceb41d7 150 if (!data->is_pipe) {
0973ad97
DCC		 151 perf_session__set_id_hdr_size(session);
152 perf_session__set_comm_exec(session);
153 }
93115d32
TR		 154
155 perf_evlist__init_trace_event_sample_raw(session->evlist);
ec65def1
JO		 156
157 /* Open the directory data. */
158 if (data->is_dir && perf_data__open_dir(data))
159 goto out_delete;
6a4d98d7 160 }
4cde998d
ACM		 161 } else {
162 session->machines.host.env = &perf_env;
6a4d98d7
JO		 163 }
164
ec1891af
AH		 165 session->machines.host.single_address_space =
166 perf_env__single_address_space(session->machines.host.env);
167
8ceb41d7 168 if (!data || perf_data__is_write(data)) {
64abebf7
ACM		 169 /*
170 * In O_RDONLY mode this will be performed when reading the
8115d60c 171 * kernel MMAP event, in perf_event__process_mmap().
64abebf7 172 */
316c7136 173 if (perf_session__create_kernel_maps(session) < 0)
a5c2a4c9 174 pr_warning("Cannot read kernel map\n");
64abebf7 175 }
d549c769 176
0973ad97
DCC		 177 /*
178 * In pipe-mode, evlist is empty until PERF_RECORD_HEADER_ATTR is
179 * processed, so perf_evlist__sample_id_all is not meaningful here.
180 */
8ceb41d7 181 if ((!data || !data->is_pipe) && tool && tool->ordering_requires_timestamps &&
0a8cb85c 182 tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) {
21ef97f0 183 dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
0a8cb85c 184 tool->ordered_events = false;
d10eb1eb 185 }
21ef97f0 186
316c7136 187 return session;
6a4d98d7 188
6a4d98d7 189 out_delete:
316c7136 190 perf_session__delete(session);
6a4d98d7 191 out:
4aa65636 192 return NULL;
94c744b6
ACM		 193}
194
b424eba2
ACM		 195static void perf_session__delete_threads(struct perf_session *session)
196{
876650e6 197 machine__delete_threads(&session->machines.host);
b424eba2
ACM		 198}
199
316c7136 200void perf_session__delete(struct perf_session *session)
94c744b6 201{
e1446551
ACM		 202 if (session == NULL)
203 return;
c446870d 204 auxtrace__free(session);
99fa2984 205 auxtrace_index__free(&session->auxtrace_index);
316c7136 206 perf_session__destroy_kernel_maps(session);
316c7136 207 perf_session__delete_threads(session);
f0ce888c 208 perf_env__exit(&session->header.env);
316c7136 209 machines__exit(&session->machines);
8ceb41d7
JO		 210 if (session->data)
211 perf_data__close(session->data);
316c7136 212 free(session);
94c744b6 213}
a328626b 214
89f1688a 215static int process_event_synth_tracing_data_stub(struct perf_session *session
47c3d109
AH		 216 __maybe_unused,
217 union perf_event *event
89f1688a 218 __maybe_unused)
d20deb64
ACM		 219{
220 dump_printf(": unhandled!\n");
221 return 0;
222}
223
47c3d109
AH		 224static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused,
225 union perf_event *event __maybe_unused,
1d037ca1
IT		 226 struct perf_evlist **pevlist
227 __maybe_unused)
10d0f086
ACM		 228{
229 dump_printf(": unhandled!\n");
230 return 0;
231}
232
ffe77725
JO		 233static int process_event_synth_event_update_stub(struct perf_tool *tool __maybe_unused,
234 union perf_event *event __maybe_unused,
235 struct perf_evlist **pevlist
236 __maybe_unused)
237{
2d2aea6a
JO		 238 if (dump_trace)
239 perf_event__fprintf_event_update(event, stdout);
240
ffe77725
JO		 241 dump_printf(": unhandled!\n");
242 return 0;
243}
244
1d037ca1
IT		 245static int process_event_sample_stub(struct perf_tool *tool __maybe_unused,
246 union perf_event *event __maybe_unused,
247 struct perf_sample *sample __maybe_unused,
248 struct perf_evsel *evsel __maybe_unused,
249 struct machine *machine __maybe_unused)
9e69c210
ACM		 250{
251 dump_printf(": unhandled!\n");
252 return 0;
253}
254
1d037ca1
IT		 255static int process_event_stub(struct perf_tool *tool __maybe_unused,
256 union perf_event *event __maybe_unused,
257 struct perf_sample *sample __maybe_unused,
258 struct machine *machine __maybe_unused)
06aae590
ACM		 259{
260 dump_printf(": unhandled!\n");
261 return 0;
262}
263
1d037ca1
IT		 264static int process_finished_round_stub(struct perf_tool *tool __maybe_unused,
265 union perf_event *event __maybe_unused,
d704ebda 266 struct ordered_events *oe __maybe_unused)
743eb868
ACM		 267{
268 dump_printf(": unhandled!\n");
269 return 0;
270}
271
45694aa7 272static int process_finished_round(struct perf_tool *tool,
d20deb64 273 union perf_event *event,
d704ebda 274 struct ordered_events *oe);
d6b17beb 275
a16ac023
AH		 276static int skipn(int fd, off_t n)
277{
278 char buf[4096];
279 ssize_t ret;
280
281 while (n > 0) {
282 ret = read(fd, buf, min(n, (off_t)sizeof(buf)));
283 if (ret <= 0)
284 return ret;
285 n -= ret;
286 }
287
288 return 0;
289}
290
7336555a
JO		 291static s64 process_event_auxtrace_stub(struct perf_session *session __maybe_unused,
292 union perf_event *event)
a16ac023
AH		 293{
294 dump_printf(": unhandled!\n");
8ceb41d7
JO		 295 if (perf_data__is_pipe(session->data))
296 skipn(perf_data__fd(session->data), event->auxtrace.size);
a16ac023
AH		 297 return event->auxtrace.size;
298}
299
89f1688a
JO		 300static int process_event_op2_stub(struct perf_session *session __maybe_unused,
301 union perf_event *event __maybe_unused)
e9bf54d2
AH		 302{
303 dump_printf(": unhandled!\n");
304 return 0;
305}
306
5f3339d2
JO		 307
308static
89f1688a
JO		 309int process_event_thread_map_stub(struct perf_session *session __maybe_unused,
310 union perf_event *event __maybe_unused)
5f3339d2 311{
2d2aea6a
JO		 312 if (dump_trace)
313 perf_event__fprintf_thread_map(event, stdout);
314
5f3339d2
JO		 315 dump_printf(": unhandled!\n");
316 return 0;
317}
318
6640b6c2 319static
89f1688a
JO		 320int process_event_cpu_map_stub(struct perf_session *session __maybe_unused,
321 union perf_event *event __maybe_unused)
6640b6c2 322{
2d2aea6a
JO		 323 if (dump_trace)
324 perf_event__fprintf_cpu_map(event, stdout);
325
6640b6c2
JO		 326 dump_printf(": unhandled!\n");
327 return 0;
328}
329
374fb9e3 330static
89f1688a
JO		 331int process_event_stat_config_stub(struct perf_session *session __maybe_unused,
332 union perf_event *event __maybe_unused)
374fb9e3 333{
2d2aea6a
JO		 334 if (dump_trace)
335 perf_event__fprintf_stat_config(event, stdout);
336
374fb9e3
JO		 337 dump_printf(": unhandled!\n");
338 return 0;
339}
340
89f1688a
JO		 341static int process_stat_stub(struct perf_session *perf_session __maybe_unused,
342 union perf_event *event)
d80518c9 343{
2d2aea6a
JO		 344 if (dump_trace)
345 perf_event__fprintf_stat(event, stdout);
346
d80518c9
JO		 347 dump_printf(": unhandled!\n");
348 return 0;
349}
350
89f1688a
JO		 351static int process_stat_round_stub(struct perf_session *perf_session __maybe_unused,
352 union perf_event *event)
2d8f0f18 353{
2d2aea6a
JO		 354 if (dump_trace)
355 perf_event__fprintf_stat_round(event, stdout);
356
2d8f0f18
JO		 357 dump_printf(": unhandled!\n");
358 return 0;
359}
360
9c501402 361void perf_tool__fill_defaults(struct perf_tool *tool)
06aae590 362{
45694aa7
ACM		 363 if (tool->sample == NULL)
364 tool->sample = process_event_sample_stub;
365 if (tool->mmap == NULL)
366 tool->mmap = process_event_stub;
6adb0b0a
DA		 367 if (tool->mmap2 == NULL)
368 tool->mmap2 = process_event_stub;
45694aa7
ACM		 369 if (tool->comm == NULL)
370 tool->comm = process_event_stub;
7f0cd236
NK		 371 if (tool->namespaces == NULL)
372 tool->namespaces = process_event_stub;
45694aa7
ACM		 373 if (tool->fork == NULL)
374 tool->fork = process_event_stub;
375 if (tool->exit == NULL)
376 tool->exit = process_event_stub;
377 if (tool->lost == NULL)
378 tool->lost = perf_event__process_lost;
c4937a91
KL		 379 if (tool->lost_samples == NULL)
380 tool->lost_samples = perf_event__process_lost_samples;
4a96f7a0
AH		 381 if (tool->aux == NULL)
382 tool->aux = perf_event__process_aux;
0ad21f68
AH		 383 if (tool->itrace_start == NULL)
384 tool->itrace_start = perf_event__process_itrace_start;
0286039f
AH		 385 if (tool->context_switch == NULL)
386 tool->context_switch = perf_event__process_switch;
9aa0bfa3
SL		 387 if (tool->ksymbol == NULL)
388 tool->ksymbol = perf_event__process_ksymbol;
45178a92
SL		 389 if (tool->bpf_event == NULL)
390 tool->bpf_event = perf_event__process_bpf_event;
45694aa7
ACM		 391 if (tool->read == NULL)
392 tool->read = process_event_sample_stub;
393 if (tool->throttle == NULL)
394 tool->throttle = process_event_stub;
395 if (tool->unthrottle == NULL)
396 tool->unthrottle = process_event_stub;
397 if (tool->attr == NULL)
398 tool->attr = process_event_synth_attr_stub;
ffe77725
JO		 399 if (tool->event_update == NULL)
400 tool->event_update = process_event_synth_event_update_stub;
45694aa7
ACM		 401 if (tool->tracing_data == NULL)
402 tool->tracing_data = process_event_synth_tracing_data_stub;
403 if (tool->build_id == NULL)
5fb0ac16 404 tool->build_id = process_event_op2_stub;
45694aa7 405 if (tool->finished_round == NULL) {
0a8cb85c 406 if (tool->ordered_events)
45694aa7 407 tool->finished_round = process_finished_round;
d6b17beb 408 else
45694aa7 409 tool->finished_round = process_finished_round_stub;
d6b17beb 410 }
3c659eed 411 if (tool->id_index == NULL)
5fb0ac16 412 tool->id_index = process_event_op2_stub;
a16ac023 413 if (tool->auxtrace_info == NULL)
5fb0ac16 414 tool->auxtrace_info = process_event_op2_stub;
a16ac023
AH		 415 if (tool->auxtrace == NULL)
416 tool->auxtrace = process_event_auxtrace_stub;
e9bf54d2 417 if (tool->auxtrace_error == NULL)
5fb0ac16 418 tool->auxtrace_error = process_event_op2_stub;
5f3339d2
JO		 419 if (tool->thread_map == NULL)
420 tool->thread_map = process_event_thread_map_stub;
6640b6c2
JO		 421 if (tool->cpu_map == NULL)
422 tool->cpu_map = process_event_cpu_map_stub;
374fb9e3
JO		 423 if (tool->stat_config == NULL)
424 tool->stat_config = process_event_stat_config_stub;
d80518c9
JO		 425 if (tool->stat == NULL)
426 tool->stat = process_stat_stub;
2d8f0f18
JO		 427 if (tool->stat_round == NULL)
428 tool->stat_round = process_stat_round_stub;
46bc29b9
AH		 429 if (tool->time_conv == NULL)
430 tool->time_conv = process_event_op2_stub;
e9def1b2
DCC		 431 if (tool->feature == NULL)
432 tool->feature = process_event_op2_stub;
06aae590 433}
48000a1a 434
268fb20f
JO		 435static void swap_sample_id_all(union perf_event *event, void *data)
436{
437 void *end = (void *) event + event->header.size;
438 int size = end - data;
439
440 BUG_ON(size % sizeof(u64));
441 mem_bswap_64(data, size);
442}
443
444static void perf_event__all64_swap(union perf_event *event,
1d037ca1 445 bool sample_id_all __maybe_unused)
ba21594c 446{
8115d60c
ACM		 447 struct perf_event_header *hdr = &event->header;
448 mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr));
ba21594c
ACM		 449}
450
268fb20f 451static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
ba21594c 452{
8115d60c
ACM		 453 event->comm.pid = bswap_32(event->comm.pid);
454 event->comm.tid = bswap_32(event->comm.tid);
268fb20f
JO		 455
456 if (sample_id_all) {
457 void *data = &event->comm.comm;
458
9ac3e487 459 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 460 swap_sample_id_all(event, data);
461 }
ba21594c
ACM		 462}
463
268fb20f
JO		 464static void perf_event__mmap_swap(union perf_event *event,
465 bool sample_id_all)
ba21594c 466{
8115d60c
ACM		 467 event->mmap.pid = bswap_32(event->mmap.pid);
468 event->mmap.tid = bswap_32(event->mmap.tid);
469 event->mmap.start = bswap_64(event->mmap.start);
470 event->mmap.len = bswap_64(event->mmap.len);
471 event->mmap.pgoff = bswap_64(event->mmap.pgoff);
268fb20f
JO		 472
473 if (sample_id_all) {
474 void *data = &event->mmap.filename;
475
9ac3e487 476 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
268fb20f
JO		 477 swap_sample_id_all(event, data);
478 }
ba21594c
ACM		 479}
480
5c5e854b
SE		 481static void perf_event__mmap2_swap(union perf_event *event,
482 bool sample_id_all)
483{
484 event->mmap2.pid = bswap_32(event->mmap2.pid);
485 event->mmap2.tid = bswap_32(event->mmap2.tid);
486 event->mmap2.start = bswap_64(event->mmap2.start);
487 event->mmap2.len = bswap_64(event->mmap2.len);
488 event->mmap2.pgoff = bswap_64(event->mmap2.pgoff);
489 event->mmap2.maj = bswap_32(event->mmap2.maj);
490 event->mmap2.min = bswap_32(event->mmap2.min);
491 event->mmap2.ino = bswap_64(event->mmap2.ino);
492
493 if (sample_id_all) {
494 void *data = &event->mmap2.filename;
495
496 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
497 swap_sample_id_all(event, data);
498 }
499}
268fb20f 500static void perf_event__task_swap(union perf_event *event, bool sample_id_all)
ba21594c 501{
8115d60c
ACM		 502 event->fork.pid = bswap_32(event->fork.pid);
503 event->fork.tid = bswap_32(event->fork.tid);
504 event->fork.ppid = bswap_32(event->fork.ppid);
505 event->fork.ptid = bswap_32(event->fork.ptid);
506 event->fork.time = bswap_64(event->fork.time);
268fb20f
JO		 507
508 if (sample_id_all)
509 swap_sample_id_all(event, &event->fork + 1);
ba21594c
ACM		 510}
511
268fb20f 512static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
ba21594c 513{
8115d60c
ACM		 514 event->read.pid = bswap_32(event->read.pid);
515 event->read.tid = bswap_32(event->read.tid);
516 event->read.value = bswap_64(event->read.value);
517 event->read.time_enabled = bswap_64(event->read.time_enabled);
518 event->read.time_running = bswap_64(event->read.time_running);
519 event->read.id = bswap_64(event->read.id);
268fb20f
JO		 520
521 if (sample_id_all)
522 swap_sample_id_all(event, &event->read + 1);
ba21594c
ACM		 523}
524
4a96f7a0
AH		 525static void perf_event__aux_swap(union perf_event *event, bool sample_id_all)
526{
527 event->aux.aux_offset = bswap_64(event->aux.aux_offset);
528 event->aux.aux_size = bswap_64(event->aux.aux_size);
529 event->aux.flags = bswap_64(event->aux.flags);
530
531 if (sample_id_all)
532 swap_sample_id_all(event, &event->aux + 1);
533}
534
0ad21f68
AH		 535static void perf_event__itrace_start_swap(union perf_event *event,
536 bool sample_id_all)
537{
538 event->itrace_start.pid = bswap_32(event->itrace_start.pid);
539 event->itrace_start.tid = bswap_32(event->itrace_start.tid);
540
541 if (sample_id_all)
542 swap_sample_id_all(event, &event->itrace_start + 1);
543}
544
0286039f
AH		 545static void perf_event__switch_swap(union perf_event *event, bool sample_id_all)
546{
547 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
548 event->context_switch.next_prev_pid =
549 bswap_32(event->context_switch.next_prev_pid);
550 event->context_switch.next_prev_tid =
551 bswap_32(event->context_switch.next_prev_tid);
552 }
553
554 if (sample_id_all)
555 swap_sample_id_all(event, &event->context_switch + 1);
556}
557
dd96c46b
JO		 558static void perf_event__throttle_swap(union perf_event *event,
559 bool sample_id_all)
560{
561 event->throttle.time = bswap_64(event->throttle.time);
562 event->throttle.id = bswap_64(event->throttle.id);
563 event->throttle.stream_id = bswap_64(event->throttle.stream_id);
564
565 if (sample_id_all)
566 swap_sample_id_all(event, &event->throttle + 1);
567}
568
e108c66e
JO		 569static u8 revbyte(u8 b)
570{
571 int rev = (b >> 4) | ((b & 0xf) << 4);
572 rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2);
573 rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1);
574 return (u8) rev;
575}
576
577/*
578 * XXX this is hack in attempt to carry flags bitfield
bd1a0be5 579 * through endian village. ABI says:
e108c66e
JO		 580 *
581 * Bit-fields are allocated from right to left (least to most significant)
582 * on little-endian implementations and from left to right (most to least
583 * significant) on big-endian implementations.
584 *
585 * The above seems to be byte specific, so we need to reverse each
586 * byte of the bitfield. 'Internet' also says this might be implementation
587 * specific and we probably need proper fix and carry perf_event_attr
588 * bitfield flags in separate data file FEAT_ section. Thought this seems
589 * to work for now.
590 */
591static void swap_bitfield(u8 *p, unsigned len)
592{
593 unsigned i;
594
595 for (i = 0; i < len; i++) {
596 *p = revbyte(*p);
597 p++;
598 }
599}
600
eda3913b
DA		 601/* exported for swapping attributes in file header */
602void perf_event__attr_swap(struct perf_event_attr *attr)
603{
604 attr->type = bswap_32(attr->type);
605 attr->size = bswap_32(attr->size);
b30b6172
WN		 606
607#define bswap_safe(f, n) \
608 (attr->size > (offsetof(struct perf_event_attr, f) + \
609 sizeof(attr->f) * (n)))
610#define bswap_field(f, sz) \
611do { \
612 if (bswap_safe(f, 0)) \
613 attr->f = bswap_##sz(attr->f); \
614} while(0)
792d48b4 615#define bswap_field_16(f) bswap_field(f, 16)
b30b6172
WN		 616#define bswap_field_32(f) bswap_field(f, 32)
617#define bswap_field_64(f) bswap_field(f, 64)
618
619 bswap_field_64(config);
620 bswap_field_64(sample_period);
621 bswap_field_64(sample_type);
622 bswap_field_64(read_format);
623 bswap_field_32(wakeup_events);
624 bswap_field_32(bp_type);
625 bswap_field_64(bp_addr);
626 bswap_field_64(bp_len);
627 bswap_field_64(branch_sample_type);
628 bswap_field_64(sample_regs_user);
629 bswap_field_32(sample_stack_user);
630 bswap_field_32(aux_watermark);
792d48b4 631 bswap_field_16(sample_max_stack);
b30b6172
WN		 632
633 /*
634 * After read_format are bitfields. Check read_format because
635 * we are unable to use offsetof on bitfield.
636 */
637 if (bswap_safe(read_format, 1))
638 swap_bitfield((u8 *) (&attr->read_format + 1),
639 sizeof(u64));
640#undef bswap_field_64
641#undef bswap_field_32
642#undef bswap_field
643#undef bswap_safe
eda3913b
DA		 644}
645
268fb20f 646static void perf_event__hdr_attr_swap(union perf_event *event,
1d037ca1 647 bool sample_id_all __maybe_unused)
2c46dbb5
TZ		 648{
649 size_t size;
650
eda3913b 651 perf_event__attr_swap(&event->attr.attr);
2c46dbb5 652
8115d60c
ACM		 653 size = event->header.size;
654 size -= (void *)&event->attr.id - (void *)event;
655 mem_bswap_64(event->attr.id, size);
2c46dbb5
TZ		 656}
657
ffe77725
JO		 658static void perf_event__event_update_swap(union perf_event *event,
659 bool sample_id_all __maybe_unused)
660{
661 event->event_update.type = bswap_64(event->event_update.type);
662 event->event_update.id = bswap_64(event->event_update.id);
663}
664
268fb20f 665static void perf_event__event_type_swap(union perf_event *event,
1d037ca1 666 bool sample_id_all __maybe_unused)
cd19a035 667{
8115d60c
ACM		 668 event->event_type.event_type.event_id =
669 bswap_64(event->event_type.event_type.event_id);
cd19a035
TZ		 670}
671
268fb20f 672static void perf_event__tracing_data_swap(union perf_event *event,
1d037ca1 673 bool sample_id_all __maybe_unused)
9215545e 674{
8115d60c 675 event->tracing_data.size = bswap_32(event->tracing_data.size);
9215545e
TZ		 676}
677
a16ac023
AH		 678static void perf_event__auxtrace_info_swap(union perf_event *event,
679 bool sample_id_all __maybe_unused)
680{
681 size_t size;
682
683 event->auxtrace_info.type = bswap_32(event->auxtrace_info.type);
684
685 size = event->header.size;
686 size -= (void *)&event->auxtrace_info.priv - (void *)event;
687 mem_bswap_64(event->auxtrace_info.priv, size);
688}
689
690static void perf_event__auxtrace_swap(union perf_event *event,
691 bool sample_id_all __maybe_unused)
692{
693 event->auxtrace.size = bswap_64(event->auxtrace.size);
694 event->auxtrace.offset = bswap_64(event->auxtrace.offset);
695 event->auxtrace.reference = bswap_64(event->auxtrace.reference);
696 event->auxtrace.idx = bswap_32(event->auxtrace.idx);
697 event->auxtrace.tid = bswap_32(event->auxtrace.tid);
698 event->auxtrace.cpu = bswap_32(event->auxtrace.cpu);
699}
700
e9bf54d2
AH		 701static void perf_event__auxtrace_error_swap(union perf_event *event,
702 bool sample_id_all __maybe_unused)
703{
704 event->auxtrace_error.type = bswap_32(event->auxtrace_error.type);
705 event->auxtrace_error.code = bswap_32(event->auxtrace_error.code);
706 event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu);
707 event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid);
708 event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid);
16bd4321 709 event->auxtrace_error.fmt = bswap_32(event->auxtrace_error.fmt);
e9bf54d2 710 event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip);
16bd4321
AH		 711 if (event->auxtrace_error.fmt)
712 event->auxtrace_error.time = bswap_64(event->auxtrace_error.time);
e9bf54d2
AH		 713}
714
5f3339d2
JO		 715static void perf_event__thread_map_swap(union perf_event *event,
716 bool sample_id_all __maybe_unused)
717{
718 unsigned i;
719
720 event->thread_map.nr = bswap_64(event->thread_map.nr);
721
722 for (i = 0; i < event->thread_map.nr; i++)
723 event->thread_map.entries[i].pid = bswap_64(event->thread_map.entries[i].pid);
724}
725
6640b6c2
JO		 726static void perf_event__cpu_map_swap(union perf_event *event,
727 bool sample_id_all __maybe_unused)
728{
729 struct cpu_map_data *data = &event->cpu_map.data;
730 struct cpu_map_entries *cpus;
731 struct cpu_map_mask *mask;
732 unsigned i;
733
734 data->type = bswap_64(data->type);
735
736 switch (data->type) {
737 case PERF_CPU_MAP__CPUS:
738 cpus = (struct cpu_map_entries *)data->data;
739
740 cpus->nr = bswap_16(cpus->nr);
741
742 for (i = 0; i < cpus->nr; i++)
743 cpus->cpu[i] = bswap_16(cpus->cpu[i]);
744 break;
745 case PERF_CPU_MAP__MASK:
746 mask = (struct cpu_map_mask *) data->data;
747
748 mask->nr = bswap_16(mask->nr);
749 mask->long_size = bswap_16(mask->long_size);
750
751 switch (mask->long_size) {
752 case 4: mem_bswap_32(&mask->mask, mask->nr); break;
753 case 8: mem_bswap_64(&mask->mask, mask->nr); break;
754 default:
755 pr_err("cpu_map swap: unsupported long size\n");
756 }
757 default:
758 break;
759 }
760}
761
374fb9e3
JO		 762static void perf_event__stat_config_swap(union perf_event *event,
763 bool sample_id_all __maybe_unused)
764{
765 u64 size;
766
767 size = event->stat_config.nr * sizeof(event->stat_config.data[0]);
768 size += 1; /* nr item itself */
769 mem_bswap_64(&event->stat_config.nr, size);
770}
771
d80518c9
JO		 772static void perf_event__stat_swap(union perf_event *event,
773 bool sample_id_all __maybe_unused)
774{
775 event->stat.id = bswap_64(event->stat.id);
776 event->stat.thread = bswap_32(event->stat.thread);
777 event->stat.cpu = bswap_32(event->stat.cpu);
778 event->stat.val = bswap_64(event->stat.val);
779 event->stat.ena = bswap_64(event->stat.ena);
780 event->stat.run = bswap_64(event->stat.run);
781}
782
2d8f0f18
JO		 783static void perf_event__stat_round_swap(union perf_event *event,
784 bool sample_id_all __maybe_unused)
785{
786 event->stat_round.type = bswap_64(event->stat_round.type);
787 event->stat_round.time = bswap_64(event->stat_round.time);
788}
789
268fb20f
JO		 790typedef void (*perf_event__swap_op)(union perf_event *event,
791 bool sample_id_all);
ba21594c 792
8115d60c
ACM		 793static perf_event__swap_op perf_event__swap_ops[] = {
794 [PERF_RECORD_MMAP] = perf_event__mmap_swap,
5c5e854b 795 [PERF_RECORD_MMAP2] = perf_event__mmap2_swap,
8115d60c
ACM		 796 [PERF_RECORD_COMM] = perf_event__comm_swap,
797 [PERF_RECORD_FORK] = perf_event__task_swap,
798 [PERF_RECORD_EXIT] = perf_event__task_swap,
799 [PERF_RECORD_LOST] = perf_event__all64_swap,
800 [PERF_RECORD_READ] = perf_event__read_swap,
dd96c46b
JO		 801 [PERF_RECORD_THROTTLE] = perf_event__throttle_swap,
802 [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap,
8115d60c 803 [PERF_RECORD_SAMPLE] = perf_event__all64_swap,
4a96f7a0 804 [PERF_RECORD_AUX] = perf_event__aux_swap,
0ad21f68 805 [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
c4937a91 806 [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
0286039f
AH		 807 [PERF_RECORD_SWITCH] = perf_event__switch_swap,
808 [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap,
eda3913b 809 [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
8115d60c
ACM		 810 [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
811 [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
812 [PERF_RECORD_HEADER_BUILD_ID] = NULL,
3c659eed 813 [PERF_RECORD_ID_INDEX] = perf_event__all64_swap,
a16ac023
AH		 814 [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap,
815 [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap,
e9bf54d2 816 [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap,
5f3339d2 817 [PERF_RECORD_THREAD_MAP] = perf_event__thread_map_swap,
6640b6c2 818 [PERF_RECORD_CPU_MAP] = perf_event__cpu_map_swap,
374fb9e3 819 [PERF_RECORD_STAT_CONFIG] = perf_event__stat_config_swap,
d80518c9 820 [PERF_RECORD_STAT] = perf_event__stat_swap,
2d8f0f18 821 [PERF_RECORD_STAT_ROUND] = perf_event__stat_round_swap,
ffe77725 822 [PERF_RECORD_EVENT_UPDATE] = perf_event__event_update_swap,
46bc29b9 823 [PERF_RECORD_TIME_CONV] = perf_event__all64_swap,
8115d60c 824 [PERF_RECORD_HEADER_MAX] = NULL,
ba21594c
ACM		 825};
826
d6b17beb
FW		 827/*
828 * When perf record finishes a pass on every buffers, it records this pseudo
829 * event.
830 * We record the max timestamp t found in the pass n.
831 * Assuming these timestamps are monotonic across cpus, we know that if
832 * a buffer still has events with timestamps below t, they will be all
833 * available and then read in the pass n + 1.
834 * Hence when we start to read the pass n + 2, we can safely flush every
835 * events with timestamps below t.
836 *
837 * ============ PASS n =================
838 * CPU 0 | CPU 1
839 * |
840 * cnt1 timestamps | cnt2 timestamps
841 * 1 | 2
842 * 2 | 3
843 * - | 4 <--- max recorded
844 *
845 * ============ PASS n + 1 ==============
846 * CPU 0 | CPU 1
847 * |
848 * cnt1 timestamps | cnt2 timestamps
849 * 3 | 5
850 * 4 | 6
851 * 5 | 7 <---- max recorded
852 *
853 * Flush every events below timestamp 4
854 *
855 * ============ PASS n + 2 ==============
856 * CPU 0 | CPU 1
857 * |
858 * cnt1 timestamps | cnt2 timestamps
859 * 6 | 8
860 * 7 | 9
861 * - | 10
862 *
863 * Flush every events below timestamp 7
864 * etc...
865 */
b7b61cbe 866static int process_finished_round(struct perf_tool *tool __maybe_unused,
1d037ca1 867 union perf_event *event __maybe_unused,
d704ebda 868 struct ordered_events *oe)
d6b17beb 869{
5531e162
AH		 870 if (dump_trace)
871 fprintf(stdout, "\n");
b7b61cbe 872 return ordered_events__flush(oe, OE_FLUSH__ROUND);
d6b17beb
FW		 873}
874
b7b61cbe 875int perf_session__queue_event(struct perf_session *s, union perf_event *event,
dc83e139 876 u64 timestamp, u64 file_offset)
c61e52ee 877{
dc83e139 878 return ordered_events__queue(&s->ordered_events, event, timestamp, file_offset);
640c03ce 879}
c61e52ee 880
384b6055 881static void callchain__lbr_callstack_printf(struct perf_sample *sample)
640c03ce 882{
384b6055
KL		 883 struct ip_callchain *callchain = sample->callchain;
884 struct branch_stack *lbr_stack = sample->branch_stack;
885 u64 kernel_callchain_nr = callchain->nr;
640c03ce 886 unsigned int i;
c61e52ee 887
384b6055
KL		 888 for (i = 0; i < kernel_callchain_nr; i++) {
889 if (callchain->ips[i] == PERF_CONTEXT_USER)
890 break;
891 }
892
893 if ((i != kernel_callchain_nr) && lbr_stack->nr) {
894 u64 total_nr;
895 /*
896 * LBR callstack can only get user call chain,
897 * i is kernel call chain number,
898 * 1 is PERF_CONTEXT_USER.
899 *
900 * The user call chain is stored in LBR registers.
901 * LBR are pair registers. The caller is stored
902 * in "from" register, while the callee is stored
903 * in "to" register.
904 * For example, there is a call stack
905 * "A"->"B"->"C"->"D".
906 * The LBR registers will recorde like
907 * "C"->"D", "B"->"C", "A"->"B".
908 * So only the first "to" register and all "from"
909 * registers are needed to construct the whole stack.
910 */
911 total_nr = i + 1 + lbr_stack->nr + 1;
912 kernel_callchain_nr = i + 1;
913
914 printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr);
915
916 for (i = 0; i < kernel_callchain_nr; i++)
917 printf("..... %2d: %016" PRIx64 "\n",
918 i, callchain->ips[i]);
919
920 printf("..... %2d: %016" PRIx64 "\n",
921 (int)(kernel_callchain_nr), lbr_stack->entries[0].to);
922 for (i = 0; i < lbr_stack->nr; i++)
923 printf("..... %2d: %016" PRIx64 "\n",
924 (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from);
925 }
926}
927
928static void callchain__printf(struct perf_evsel *evsel,
929 struct perf_sample *sample)
930{
931 unsigned int i;
932 struct ip_callchain *callchain = sample->callchain;
933
acf2abbd 934 if (perf_evsel__has_branch_callstack(evsel))
384b6055
KL		 935 callchain__lbr_callstack_printf(sample);
936
937 printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr);
640c03ce 938
384b6055 939 for (i = 0; i < callchain->nr; i++)
9486aa38 940 printf("..... %2d: %016" PRIx64 "\n",
384b6055 941 i, callchain->ips[i]);
c61e52ee
FW		 942}
943
b5387528
RAV		 944static void branch_stack__printf(struct perf_sample *sample)
945{
946 uint64_t i;
947
948 printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
949
0e332f03
AK		 950 for (i = 0; i < sample->branch_stack->nr; i++) {
951 struct branch_entry *e = &sample->branch_stack->entries[i];
952
953 printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n",
954 i, e->from, e->to,
8074bf51 955 (unsigned short)e->flags.cycles,
0e332f03
AK		 956 e->flags.mispred ? "M" : " ",
957 e->flags.predicted ? "P" : " ",
958 e->flags.abort ? "A" : " ",
959 e->flags.in_tx ? "T" : " ",
960 (unsigned)e->flags.reserved);
961 }
b5387528
RAV		 962}
963
0f6a3015
JO		 964static void regs_dump__printf(u64 mask, u64 *regs)
965{
966 unsigned rid, i = 0;
967
968 for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) {
969 u64 val = regs[i++];
970
971 printf(".... %-5s 0x%" PRIx64 "\n",
972 perf_reg_name(rid), val);
973 }
974}
975
6a21c0b5
SE		 976static const char *regs_abi[] = {
977 [PERF_SAMPLE_REGS_ABI_NONE] = "none",
978 [PERF_SAMPLE_REGS_ABI_32] = "32-bit",
979 [PERF_SAMPLE_REGS_ABI_64] = "64-bit",
980};
981
982static inline const char *regs_dump_abi(struct regs_dump *d)
983{
984 if (d->abi > PERF_SAMPLE_REGS_ABI_64)
985 return "unknown";
986
987 return regs_abi[d->abi];
988}
989
990static void regs__printf(const char *type, struct regs_dump *regs)
991{
992 u64 mask = regs->mask;
993
994 printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n",
995 type,
996 mask,
997 regs_dump_abi(regs));
998
999 regs_dump__printf(mask, regs->regs);
1000}
1001
352ea45a 1002static void regs_user__printf(struct perf_sample *sample)
0f6a3015
JO		 1003{
1004 struct regs_dump *user_regs = &sample->user_regs;
1005
6a21c0b5
SE		 1006 if (user_regs->regs)
1007 regs__printf("user", user_regs);
1008}
1009
1010static void regs_intr__printf(struct perf_sample *sample)
1011{
1012 struct regs_dump *intr_regs = &sample->intr_regs;
1013
1014 if (intr_regs->regs)
1015 regs__printf("intr", intr_regs);
0f6a3015
JO		 1016}
1017
1018static void stack_user__printf(struct stack_dump *dump)
1019{
1020 printf("... ustack: size %" PRIu64 ", offset 0x%x\n",
1021 dump->size, dump->offset);
1022}
1023
9fa8727a 1024static void perf_evlist__print_tstamp(struct perf_evlist *evlist,
8115d60c 1025 union perf_event *event,
8d50e5b4 1026 struct perf_sample *sample)
9c90a61c 1027{
9fa8727a 1028 u64 sample_type = __perf_evlist__combined_sample_type(evlist);
7f3be652 1029
9c90a61c 1030 if (event->header.type != PERF_RECORD_SAMPLE &&
9fa8727a 1031 !perf_evlist__sample_id_all(evlist)) {
9c90a61c
ACM		 1032 fputs("-1 -1 ", stdout);
1033 return;
1034 }
1035
7f3be652 1036 if ((sample_type & PERF_SAMPLE_CPU))
9c90a61c
ACM		 1037 printf("%u ", sample->cpu);
1038
7f3be652 1039 if (sample_type & PERF_SAMPLE_TIME)
9486aa38 1040 printf("%" PRIu64 " ", sample->time);
9c90a61c
ACM		 1041}
1042
9ede473c
JO		 1043static void sample_read__printf(struct perf_sample *sample, u64 read_format)
1044{
1045 printf("... sample_read:\n");
1046
1047 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
1048 printf("...... time enabled %016" PRIx64 "\n",
1049 sample->read.time_enabled);
1050
1051 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
1052 printf("...... time running %016" PRIx64 "\n",
1053 sample->read.time_running);
1054
1055 if (read_format & PERF_FORMAT_GROUP) {
1056 u64 i;
1057
1058 printf(".... group nr %" PRIu64 "\n", sample->read.group.nr);
1059
1060 for (i = 0; i < sample->read.group.nr; i++) {
1061 struct sample_read_value *value;
1062
1063 value = &sample->read.group.values[i];
1064 printf("..... id %016" PRIx64
1065 ", value %016" PRIx64 "\n",
1066 value->id, value->value);
1067 }
1068 } else
1069 printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n",
1070 sample->read.one.id, sample->read.one.value);
1071}
1072
9fa8727a 1073static void dump_event(struct perf_evlist *evlist, union perf_event *event,
8d50e5b4 1074 u64 file_offset, struct perf_sample *sample)
9aefcab0
TG		 1075{
1076 if (!dump_trace)
1077 return;
1078
9486aa38
ACM		 1079 printf("\n%#" PRIx64 " [%#x]: event: %d\n",
1080 file_offset, event->header.size, event->header.type);
9aefcab0
TG		 1081
1082 trace_event(event);
93115d32
TR		 1083 if (event->header.type == PERF_RECORD_SAMPLE && evlist->trace_event_sample_raw)
1084 evlist->trace_event_sample_raw(evlist, event, sample);
9aefcab0
TG		 1085
1086 if (sample)
9fa8727a 1087 perf_evlist__print_tstamp(evlist, event, sample);
9aefcab0 1088
9486aa38 1089 printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset,
8115d60c 1090 event->header.size, perf_event__name(event->header.type));
9aefcab0
TG		 1091}
1092
0f6a3015 1093static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
8d50e5b4 1094 struct perf_sample *sample)
9aefcab0 1095{
7f3be652
ACM		 1096 u64 sample_type;
1097
ddbc24b7
ACM		 1098 if (!dump_trace)
1099 return;
1100
0ea590ae 1101 printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
9486aa38 1102 event->header.misc, sample->pid, sample->tid, sample->ip,
7cec0922 1103 sample->period, sample->addr);
9aefcab0 1104
0f6a3015 1105 sample_type = evsel->attr.sample_type;
7f3be652 1106
27de9b2b 1107 if (evsel__has_callchain(evsel))
384b6055 1108 callchain__printf(evsel, sample);
b5387528 1109
acf2abbd 1110 if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !perf_evsel__has_branch_callstack(evsel))
b5387528 1111 branch_stack__printf(sample);
0f6a3015
JO		 1112
1113 if (sample_type & PERF_SAMPLE_REGS_USER)
352ea45a 1114 regs_user__printf(sample);
0f6a3015 1115
6a21c0b5
SE		 1116 if (sample_type & PERF_SAMPLE_REGS_INTR)
1117 regs_intr__printf(sample);
1118
0f6a3015
JO		 1119 if (sample_type & PERF_SAMPLE_STACK_USER)
1120 stack_user__printf(&sample->user_stack);
05484298
AK		 1121
1122 if (sample_type & PERF_SAMPLE_WEIGHT)
1123 printf("... weight: %" PRIu64 "\n", sample->weight);
98a3b32c
SE		 1124
1125 if (sample_type & PERF_SAMPLE_DATA_SRC)
1126 printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
9ede473c 1127
8780fb25
KL		 1128 if (sample_type & PERF_SAMPLE_PHYS_ADDR)
1129 printf(" .. phys_addr: 0x%"PRIx64"\n", sample->phys_addr);
1130
475eeab9
AK		 1131 if (sample_type & PERF_SAMPLE_TRANSACTION)
1132 printf("... transaction: %" PRIx64 "\n", sample->transaction);
1133
9ede473c
JO		 1134 if (sample_type & PERF_SAMPLE_READ)
1135 sample_read__printf(sample, evsel->attr.read_format);
9aefcab0
TG		 1136}
1137
dac7f6b7
JO		 1138static void dump_read(struct perf_evsel *evsel, union perf_event *event)
1139{
1140 struct read_event *read_event = &event->read;
1141 u64 read_format;
1142
1143 if (!dump_trace)
1144 return;
1145
1146 printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
1147 evsel ? perf_evsel__name(evsel) : "FAIL",
1148 event->read.value);
1149
1150 read_format = evsel->attr.read_format;
1151
1152 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
1153 printf("... time enabled : %" PRIu64 "\n", read_event->time_enabled);
1154
1155 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
1156 printf("... time running : %" PRIu64 "\n", read_event->time_running);
1157
1158 if (read_format & PERF_FORMAT_ID)
1159 printf("... id : %" PRIu64 "\n", read_event->id);
1160}
1161
54245fdc 1162static struct machine *machines__find_for_cpumode(struct machines *machines,
ef89325f
AH		 1163 union perf_event *event,
1164 struct perf_sample *sample)
743eb868 1165{
ad85ace0 1166 struct machine *machine;
743eb868 1167
7c0f4a41 1168 if (perf_guest &&
473398a2
ACM		 1169 ((sample->cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
1170 (sample->cpumode == PERF_RECORD_MISC_GUEST_USER))) {
7fb0a5ee
ND		 1171 u32 pid;
1172
5c5e854b
SE		 1173 if (event->header.type == PERF_RECORD_MMAP
1174 || event->header.type == PERF_RECORD_MMAP2)
7fb0a5ee
ND		 1175 pid = event->mmap.pid;
1176 else
ef89325f 1177 pid = sample->pid;
7fb0a5ee 1178
54245fdc 1179 machine = machines__find(machines, pid);
ad85ace0 1180 if (!machine)
3caeaa56 1181 machine = machines__findnew(machines, DEFAULT_GUEST_KERNEL_ID);
ad85ace0 1182 return machine;
7fb0a5ee 1183 }
743eb868 1184
54245fdc 1185 return &machines->host;
743eb868
ACM		 1186}
1187
313e53b0 1188static int deliver_sample_value(struct perf_evlist *evlist,
e4caec0d
JO		 1189 struct perf_tool *tool,
1190 union perf_event *event,
1191 struct perf_sample *sample,
1192 struct sample_read_value *v,
1193 struct machine *machine)
1194{
313e53b0 1195 struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id);
e4caec0d 1196
e4caec0d
JO		 1197 if (sid) {
1198 sample->id = v->id;
1199 sample->period = v->value - sid->period;
1200 sid->period = v->value;
1201 }
1202
1203 if (!sid || sid->evsel == NULL) {
313e53b0 1204 ++evlist->stats.nr_unknown_id;
e4caec0d
JO		 1205 return 0;
1206 }
1207
529c1a9e
JO		 1208 /*
1209 * There's no reason to deliver sample
1210 * for zero period, bail out.
1211 */
1212 if (!sample->period)
1213 return 0;
1214
e4caec0d
JO		 1215 return tool->sample(tool, event, sample, sid->evsel, machine);
1216}
1217
313e53b0 1218static int deliver_sample_group(struct perf_evlist *evlist,
e4caec0d
JO		 1219 struct perf_tool *tool,
1220 union perf_event *event,
1221 struct perf_sample *sample,
1222 struct machine *machine)
1223{
1224 int ret = -EINVAL;
1225 u64 i;
1226
1227 for (i = 0; i < sample->read.group.nr; i++) {
313e53b0 1228 ret = deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1229 &sample->read.group.values[i],
1230 machine);
1231 if (ret)
1232 break;
1233 }
1234
1235 return ret;
1236}
1237
1238static int
313e53b0 1239 perf_evlist__deliver_sample(struct perf_evlist *evlist,
e4caec0d
JO		 1240 struct perf_tool *tool,
1241 union perf_event *event,
1242 struct perf_sample *sample,
1243 struct perf_evsel *evsel,
1244 struct machine *machine)
1245{
1246 /* We know evsel != NULL. */
1247 u64 sample_type = evsel->attr.sample_type;
1248 u64 read_format = evsel->attr.read_format;
1249
d94386f2 1250 /* Standard sample delivery. */
e4caec0d
JO		 1251 if (!(sample_type & PERF_SAMPLE_READ))
1252 return tool->sample(tool, event, sample, evsel, machine);
1253
1254 /* For PERF_SAMPLE_READ we have either single or group mode. */
1255 if (read_format & PERF_FORMAT_GROUP)
313e53b0 1256 return deliver_sample_group(evlist, tool, event, sample,
e4caec0d
JO		 1257 machine);
1258 else
313e53b0 1259 return deliver_sample_value(evlist, tool, event, sample,
e4caec0d
JO		 1260 &sample->read.one, machine);
1261}
1262
d10eb1eb
ACM		 1263static int machines__deliver_event(struct machines *machines,
1264 struct perf_evlist *evlist,
1265 union perf_event *event,
1266 struct perf_sample *sample,
1267 struct perf_tool *tool, u64 file_offset)
cbf41645 1268{
9e69c210 1269 struct perf_evsel *evsel;
743eb868 1270 struct machine *machine;
9e69c210 1271
9fa8727a 1272 dump_event(evlist, event, file_offset, sample);
532e7269 1273
313e53b0 1274 evsel = perf_evlist__id2evsel(evlist, sample->id);
7b27509f 1275
fa713a4e 1276 machine = machines__find_for_cpumode(machines, event, sample);
743eb868 1277
cbf41645
TG		 1278 switch (event->header.type) {
1279 case PERF_RECORD_SAMPLE:
9e69c210 1280 if (evsel == NULL) {
313e53b0 1281 ++evlist->stats.nr_unknown_id;
6782206b 1282 return 0;
9e69c210 1283 }
1b29ac59 1284 dump_sample(evsel, event, sample);
0c095715 1285 if (machine == NULL) {
313e53b0 1286 ++evlist->stats.nr_unprocessable_samples;
6782206b 1287 return 0;
0c095715 1288 }
313e53b0 1289 return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
cbf41645 1290 case PERF_RECORD_MMAP:
45694aa7 1291 return tool->mmap(tool, event, sample, machine);
5c5e854b 1292 case PERF_RECORD_MMAP2:
930e6fcd
KL		 1293 if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT)
1294 ++evlist->stats.nr_proc_map_timeout;
5c5e854b 1295 return tool->mmap2(tool, event, sample, machine);
cbf41645 1296 case PERF_RECORD_COMM:
45694aa7 1297 return tool->comm(tool, event, sample, machine);
f3b3614a
HB		 1298 case PERF_RECORD_NAMESPACES:
1299 return tool->namespaces(tool, event, sample, machine);
cbf41645 1300 case PERF_RECORD_FORK:
45694aa7 1301 return tool->fork(tool, event, sample, machine);
cbf41645 1302 case PERF_RECORD_EXIT:
45694aa7 1303 return tool->exit(tool, event, sample, machine);
cbf41645 1304 case PERF_RECORD_LOST:
45694aa7 1305 if (tool->lost == perf_event__process_lost)
313e53b0 1306 evlist->stats.total_lost += event->lost.lost;
45694aa7 1307 return tool->lost(tool, event, sample, machine);
c4937a91
KL		 1308 case PERF_RECORD_LOST_SAMPLES:
1309 if (tool->lost_samples == perf_event__process_lost_samples)
1310 evlist->stats.total_lost_samples += event->lost_samples.lost;
1311 return tool->lost_samples(tool, event, sample, machine);
cbf41645 1312 case PERF_RECORD_READ:
dac7f6b7 1313 dump_read(evsel, event);
45694aa7 1314 return tool->read(tool, event, sample, evsel, machine);
cbf41645 1315 case PERF_RECORD_THROTTLE:
45694aa7 1316 return tool->throttle(tool, event, sample, machine);
cbf41645 1317 case PERF_RECORD_UNTHROTTLE:
45694aa7 1318 return tool->unthrottle(tool, event, sample, machine);
4a96f7a0 1319 case PERF_RECORD_AUX:
05a1f47e
AS		 1320 if (tool->aux == perf_event__process_aux) {
1321 if (event->aux.flags & PERF_AUX_FLAG_TRUNCATED)
1322 evlist->stats.total_aux_lost += 1;
1323 if (event->aux.flags & PERF_AUX_FLAG_PARTIAL)
1324 evlist->stats.total_aux_partial += 1;
1325 }
4a96f7a0 1326 return tool->aux(tool, event, sample, machine);
0ad21f68
AH		 1327 case PERF_RECORD_ITRACE_START:
1328 return tool->itrace_start(tool, event, sample, machine);
0286039f
AH		 1329 case PERF_RECORD_SWITCH:
1330 case PERF_RECORD_SWITCH_CPU_WIDE:
1331 return tool->context_switch(tool, event, sample, machine);
9aa0bfa3
SL		 1332 case PERF_RECORD_KSYMBOL:
1333 return tool->ksymbol(tool, event, sample, machine);
45178a92
SL		 1334 case PERF_RECORD_BPF_EVENT:
1335 return tool->bpf_event(tool, event, sample, machine);
cbf41645 1336 default:
313e53b0 1337 ++evlist->stats.nr_unknown_events;
cbf41645
TG		 1338 return -1;
1339 }
1340}
1341
c446870d
AH		 1342static int perf_session__deliver_event(struct perf_session *session,
1343 union perf_event *event,
c446870d
AH		 1344 struct perf_tool *tool,
1345 u64 file_offset)
1346{
93d10af2 1347 struct perf_sample sample;
c446870d
AH		 1348 int ret;
1349
93d10af2
JO		 1350 ret = perf_evlist__parse_sample(session->evlist, event, &sample);
1351 if (ret) {
1352 pr_err("Can't parse sample, err = %d\n", ret);
1353 return ret;
1354 }
1355
1356 ret = auxtrace__process_event(session, event, &sample, tool);
c446870d
AH		 1357 if (ret < 0)
1358 return ret;
1359 if (ret > 0)
1360 return 0;
1361
1362 return machines__deliver_event(&session->machines, session->evlist,
93d10af2 1363 event, &sample, tool, file_offset);
c446870d
AH		 1364}
1365
d5652d86
AH		 1366static s64 perf_session__process_user_event(struct perf_session *session,
1367 union perf_event *event,
d5652d86 1368 u64 file_offset)
06aae590 1369{
d704ebda 1370 struct ordered_events *oe = &session->ordered_events;
9870d780 1371 struct perf_tool *tool = session->tool;
f250b09c 1372 struct perf_sample sample = { .time = 0, };
8ceb41d7 1373 int fd = perf_data__fd(session->data);
10d0f086
ACM		 1374 int err;
1375
f250b09c 1376 dump_event(session->evlist, event, file_offset, &sample);
06aae590 1377
cbf41645 1378 /* These events are processed right away */
06aae590 1379 switch (event->header.type) {
2c46dbb5 1380 case PERF_RECORD_HEADER_ATTR:
47c3d109 1381 err = tool->attr(tool, event, &session->evlist);
cfe1c414 1382 if (err == 0) {
7b56cce2 1383 perf_session__set_id_hdr_size(session);
cfe1c414
AH		 1384 perf_session__set_comm_exec(session);
1385 }
10d0f086 1386 return err;
ffe77725
JO		 1387 case PERF_RECORD_EVENT_UPDATE:
1388 return tool->event_update(tool, event, &session->evlist);
f67697bd
JO		 1389 case PERF_RECORD_HEADER_EVENT_TYPE:
1390 /*
1391 * Depreceated, but we need to handle it for sake
1392 * of old data files create in pipe mode.
1393 */
1394 return 0;
9215545e
TZ		 1395 case PERF_RECORD_HEADER_TRACING_DATA:
1396 /* setup for reading amidst mmap */
cc9784bd 1397 lseek(fd, file_offset, SEEK_SET);
89f1688a 1398 return tool->tracing_data(session, event);
c7929e47 1399 case PERF_RECORD_HEADER_BUILD_ID:
89f1688a 1400 return tool->build_id(session, event);
d6b17beb 1401 case PERF_RECORD_FINISHED_ROUND:
d704ebda 1402 return tool->finished_round(tool, event, oe);
3c659eed 1403 case PERF_RECORD_ID_INDEX:
89f1688a 1404 return tool->id_index(session, event);
a16ac023 1405 case PERF_RECORD_AUXTRACE_INFO:
89f1688a 1406 return tool->auxtrace_info(session, event);
a16ac023
AH		 1407 case PERF_RECORD_AUXTRACE:
1408 /* setup for reading amidst mmap */
1409 lseek(fd, file_offset + event->header.size, SEEK_SET);
7336555a 1410 return tool->auxtrace(session, event);
e9bf54d2 1411 case PERF_RECORD_AUXTRACE_ERROR:
85ed4729 1412 perf_session__auxtrace_error_inc(session, event);
89f1688a 1413 return tool->auxtrace_error(session, event);
5f3339d2 1414 case PERF_RECORD_THREAD_MAP:
89f1688a 1415 return tool->thread_map(session, event);
6640b6c2 1416 case PERF_RECORD_CPU_MAP:
89f1688a 1417 return tool->cpu_map(session, event);
374fb9e3 1418 case PERF_RECORD_STAT_CONFIG:
89f1688a 1419 return tool->stat_config(session, event);
d80518c9 1420 case PERF_RECORD_STAT:
89f1688a 1421 return tool->stat(session, event);
2d8f0f18 1422 case PERF_RECORD_STAT_ROUND:
89f1688a 1423 return tool->stat_round(session, event);
46bc29b9
AH		 1424 case PERF_RECORD_TIME_CONV:
1425 session->time_conv = event->time_conv;
89f1688a 1426 return tool->time_conv(session, event);
e9def1b2 1427 case PERF_RECORD_HEADER_FEATURE:
89f1688a 1428 return tool->feature(session, event);
06aae590 1429 default:
ba74f064 1430 return -EINVAL;
06aae590 1431 }
ba74f064
TG		 1432}
1433
a293829d
AH		 1434int perf_session__deliver_synth_event(struct perf_session *session,
1435 union perf_event *event,
b7b61cbe 1436 struct perf_sample *sample)
a293829d 1437{
fa713a4e 1438 struct perf_evlist *evlist = session->evlist;
9870d780 1439 struct perf_tool *tool = session->tool;
fa713a4e
ACM		 1440
1441 events_stats__inc(&evlist->stats, event->header.type);
a293829d
AH		 1442
1443 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1444 return perf_session__process_user_event(session, event, 0);
a293829d 1445
fa713a4e 1446 return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0);
a293829d
AH		 1447}
1448
268fb20f
JO		 1449static void event_swap(union perf_event *event, bool sample_id_all)
1450{
1451 perf_event__swap_op swap;
1452
1453 swap = perf_event__swap_ops[event->header.type];
1454 if (swap)
1455 swap(event, sample_id_all);
1456}
1457
5a52f33a
AH		 1458int perf_session__peek_event(struct perf_session *session, off_t file_offset,
1459 void *buf, size_t buf_sz,
1460 union perf_event **event_ptr,
1461 struct perf_sample *sample)
1462{
1463 union perf_event *event;
1464 size_t hdr_sz, rest;
1465 int fd;
1466
1467 if (session->one_mmap && !session->header.needs_swap) {
1468 event = file_offset - session->one_mmap_offset +
1469 session->one_mmap_addr;
1470 goto out_parse_sample;
1471 }
1472
8ceb41d7 1473 if (perf_data__is_pipe(session->data))
5a52f33a
AH		 1474 return -1;
1475
8ceb41d7 1476 fd = perf_data__fd(session->data);
5a52f33a
AH		 1477 hdr_sz = sizeof(struct perf_event_header);
1478
1479 if (buf_sz < hdr_sz)
1480 return -1;
1481
1482 if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 ||
554e92ed 1483 readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz)
5a52f33a
AH		 1484 return -1;
1485
1486 event = (union perf_event *)buf;
1487
1488 if (session->header.needs_swap)
1489 perf_event_header__bswap(&event->header);
1490
554e92ed 1491 if (event->header.size < hdr_sz || event->header.size > buf_sz)
5a52f33a
AH		 1492 return -1;
1493
1494 rest = event->header.size - hdr_sz;
1495
554e92ed 1496 if (readn(fd, buf, rest) != (ssize_t)rest)
5a52f33a
AH		 1497 return -1;
1498
1499 if (session->header.needs_swap)
1500 event_swap(event, perf_evlist__sample_id_all(session->evlist));
1501
1502out_parse_sample:
1503
1504 if (sample && event->header.type < PERF_RECORD_USER_TYPE_START &&
1505 perf_evlist__parse_sample(session->evlist, event, sample))
1506 return -1;
1507
1508 *event_ptr = event;
1509
1510 return 0;
1511}
1512
d5652d86 1513static s64 perf_session__process_event(struct perf_session *session,
b7b61cbe 1514 union perf_event *event, u64 file_offset)
ba74f064 1515{
313e53b0 1516 struct perf_evlist *evlist = session->evlist;
9870d780 1517 struct perf_tool *tool = session->tool;
ba74f064
TG		 1518 int ret;
1519
268fb20f 1520 if (session->header.needs_swap)
313e53b0 1521 event_swap(event, perf_evlist__sample_id_all(evlist));
ba74f064
TG		 1522
1523 if (event->header.type >= PERF_RECORD_HEADER_MAX)
1524 return -EINVAL;
1525
313e53b0 1526 events_stats__inc(&evlist->stats, event->header.type);
ba74f064
TG		 1527
1528 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
b7b61cbe 1529 return perf_session__process_user_event(session, event, file_offset);
cbf41645 1530
0a8cb85c 1531 if (tool->ordered_events) {
631e8f0a 1532 u64 timestamp = -1ULL;
93d10af2
JO		 1533
1534 ret = perf_evlist__parse_sample_timestamp(evlist, event, &timestamp);
631e8f0a 1535 if (ret && ret != -1)
93d10af2
JO		 1536 return ret;
1537
1538 ret = perf_session__queue_event(session, event, timestamp, file_offset);
cbf41645
TG		 1539 if (ret != -ETIME)
1540 return ret;
1541 }
1542
93d10af2 1543 return perf_session__deliver_event(session, event, tool, file_offset);
06aae590
ACM		 1544}
1545
316c7136 1546void perf_event_header__bswap(struct perf_event_header *hdr)
ba21594c 1547{
316c7136
ACM		 1548 hdr->type = bswap_32(hdr->type);
1549 hdr->misc = bswap_16(hdr->misc);
1550 hdr->size = bswap_16(hdr->size);
ba21594c
ACM		 1551}
1552
b424eba2
ACM		 1553struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
1554{
1fcb8768 1555 return machine__findnew_thread(&session->machines.host, -1, pid);
b424eba2
ACM		 1556}
1557
b25756df
AH		 1558/*
1559 * Threads are identified by pid and tid, and the idle task has pid == tid == 0.
1560 * So here a single thread is created for that, but actually there is a separate
1561 * idle task per cpu, so there should be one 'struct thread' per cpu, but there
1562 * is only 1. That causes problems for some tools, requiring workarounds. For
1563 * example get_idle_thread() in builtin-sched.c, or thread_stack__per_cpu().
1564 */
9d8b172f 1565int perf_session__register_idle_thread(struct perf_session *session)
06aae590 1566{
1fcb8768 1567 struct thread *thread;
9d8b172f 1568 int err = 0;
06aae590 1569
1fcb8768 1570 thread = machine__findnew_thread(&session->machines.host, 0, 0);
162f0bef 1571 if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
06aae590 1572 pr_err("problem inserting idle task.\n");
9d8b172f 1573 err = -1;
06aae590
ACM		 1574 }
1575
f3b3614a
HB		 1576 if (thread == NULL || thread__set_namespaces(thread, 0, NULL)) {
1577 pr_err("problem inserting idle task.\n");
1578 err = -1;
1579 }
1580
9d8b172f
MH		 1581 /* machine__findnew_thread() got the thread, so put it */
1582 thread__put(thread);
1583 return err;
06aae590
ACM		 1584}
1585
f06149c0
WN		 1586static void
1587perf_session__warn_order(const struct perf_session *session)
1588{
1589 const struct ordered_events *oe = &session->ordered_events;
1590 struct perf_evsel *evsel;
1591 bool should_warn = true;
1592
1593 evlist__for_each_entry(session->evlist, evsel) {
1594 if (evsel->attr.write_backward)
1595 should_warn = false;
1596 }
1597
1598 if (!should_warn)
1599 return;
1600 if (oe->nr_unordered_events != 0)
1601 ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events);
1602}
1603
9870d780 1604static void perf_session__warn_about_errors(const struct perf_session *session)
11095994 1605{
9870d780 1606 const struct events_stats *stats = &session->evlist->stats;
9870d780
ACM		 1607
1608 if (session->tool->lost == perf_event__process_lost &&
ccda068f 1609 stats->nr_events[PERF_RECORD_LOST] != 0) {
7b27509f
ACM		 1610 ui__warning("Processed %d events and lost %d chunks!\n\n"
1611 "Check IO/CPU overload!\n\n",
ccda068f
ACM		 1612 stats->nr_events[0],
1613 stats->nr_events[PERF_RECORD_LOST]);
11095994
ACM		 1614 }
1615
c4937a91
KL		 1616 if (session->tool->lost_samples == perf_event__process_lost_samples) {
1617 double drop_rate;
1618
1619 drop_rate = (double)stats->total_lost_samples /
1620 (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples);
1621 if (drop_rate > 0.05) {
41a43dac 1622 ui__warning("Processed %" PRIu64 " samples and lost %3.2f%%!\n\n",
c4937a91
KL		 1623 stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples,
1624 drop_rate * 100.0);
1625 }
1626 }
1627
a38f48e3
AH		 1628 if (session->tool->aux == perf_event__process_aux &&
1629 stats->total_aux_lost != 0) {
1630 ui__warning("AUX data lost %" PRIu64 " times out of %u!\n\n",
1631 stats->total_aux_lost,
1632 stats->nr_events[PERF_RECORD_AUX]);
1633 }
1634
05a1f47e
AS		 1635 if (session->tool->aux == perf_event__process_aux &&
1636 stats->total_aux_partial != 0) {
1637 bool vmm_exclusive = false;
1638
1639 (void)sysfs__read_bool("module/kvm_intel/parameters/vmm_exclusive",
1640 &vmm_exclusive);
1641
1642 ui__warning("AUX data had gaps in it %" PRIu64 " times out of %u!\n\n"
1643 "Are you running a KVM guest in the background?%s\n\n",
1644 stats->total_aux_partial,
1645 stats->nr_events[PERF_RECORD_AUX],
1646 vmm_exclusive ?
1647 "\nReloading kvm_intel module with vmm_exclusive=0\n"
1648 "will reduce the gaps to only guest's timeslices." :
1649 "");
1650 }
1651
ccda068f 1652 if (stats->nr_unknown_events != 0) {
11095994
ACM		 1653 ui__warning("Found %u unknown events!\n\n"
1654 "Is this an older tool processing a perf.data "
1655 "file generated by a more recent tool?\n\n"
1656 "If that is not the case, consider "
1657 "reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f 1658 stats->nr_unknown_events);
11095994
ACM		 1659 }
1660
ccda068f 1661 if (stats->nr_unknown_id != 0) {
9e69c210 1662 ui__warning("%u samples with id not present in the header\n",
ccda068f 1663 stats->nr_unknown_id);
9e69c210
ACM		 1664 }
1665
ccda068f 1666 if (stats->nr_invalid_chains != 0) {
75be989a
ACM		 1667 ui__warning("Found invalid callchains!\n\n"
1668 "%u out of %u events were discarded for this reason.\n\n"
1669 "Consider reporting to linux-kernel@vger.kernel.org.\n\n",
ccda068f
ACM		 1670 stats->nr_invalid_chains,
1671 stats->nr_events[PERF_RECORD_SAMPLE]);
75be989a 1672 }
0c095715 1673
ccda068f 1674 if (stats->nr_unprocessable_samples != 0) {
0c095715
JR		 1675 ui__warning("%u unprocessable samples recorded.\n"
1676 "Do you have a KVM guest running and not using 'perf kvm'?\n",
ccda068f 1677 stats->nr_unprocessable_samples);
0c095715 1678 }
f61ff6c0 1679
f06149c0 1680 perf_session__warn_order(session);
85ed4729
AH		 1681
1682 events_stats__auxtrace_error_warn(stats);
930e6fcd
KL		 1683
1684 if (stats->nr_proc_map_timeout != 0) {
1685 ui__warning("%d map information files for pre-existing threads were\n"
1686 "not processed, if there are samples for addresses they\n"
1687 "will not be resolved, you may find out which are these\n"
1688 "threads by running with -v and redirecting the output\n"
9d9cad76
KL		 1689 "to a file.\n"
1690 "The time limit to process proc map is too short?\n"
1691 "Increase it by --proc-map-timeout\n",
930e6fcd
KL		 1692 stats->nr_proc_map_timeout);
1693 }
11095994
ACM		 1694}
1695
a5499b37
AH		 1696static int perf_session__flush_thread_stack(struct thread *thread,
1697 void *p __maybe_unused)
1698{
1699 return thread_stack__flush(thread);
1700}
1701
1702static int perf_session__flush_thread_stacks(struct perf_session *session)
1703{
1704 return machines__for_each_thread(&session->machines,
1705 perf_session__flush_thread_stack,
1706 NULL);
1707}
1708
8dc58101
TZ		 1709volatile int session_done;
1710
b7b61cbe 1711static int __perf_session__process_pipe_events(struct perf_session *session)
8dc58101 1712{
fa713a4e 1713 struct ordered_events *oe = &session->ordered_events;
9870d780 1714 struct perf_tool *tool = session->tool;
8ceb41d7 1715 int fd = perf_data__fd(session->data);
444d2866
SE		 1716 union perf_event *event;
1717 uint32_t size, cur_size = 0;
1718 void *buf = NULL;
d5652d86 1719 s64 skip = 0;
8dc58101 1720 u64 head;
727ebd54 1721 ssize_t err;
8dc58101
TZ		 1722 void *p;
1723
45694aa7 1724 perf_tool__fill_defaults(tool);
8dc58101
TZ		 1725
1726 head = 0;
444d2866
SE		 1727 cur_size = sizeof(union perf_event);
1728
1729 buf = malloc(cur_size);
1730 if (!buf)
1731 return -errno;
1e0d4f02 1732 ordered_events__set_copy_on_queue(oe, true);
8dc58101 1733more:
444d2866 1734 event = buf;
cc9784bd 1735 err = readn(fd, event, sizeof(struct perf_event_header));
8dc58101
TZ		 1736 if (err <= 0) {
1737 if (err == 0)
1738 goto done;
1739
1740 pr_err("failed to read event header\n");
1741 goto out_err;
1742 }
1743
316c7136 1744 if (session->header.needs_swap)
444d2866 1745 perf_event_header__bswap(&event->header);
8dc58101 1746
444d2866 1747 size = event->header.size;
27389d78
AH		 1748 if (size < sizeof(struct perf_event_header)) {
1749 pr_err("bad event header size\n");
1750 goto out_err;
1751 }
8dc58101 1752
444d2866
SE		 1753 if (size > cur_size) {
1754 void *new = realloc(buf, size);
1755 if (!new) {
1756 pr_err("failed to allocate memory to read event\n");
1757 goto out_err;
1758 }
1759 buf = new;
1760 cur_size = size;
1761 event = buf;
1762 }
1763 p = event;
8dc58101
TZ		 1764 p += sizeof(struct perf_event_header);
1765
794e43b5 1766 if (size - sizeof(struct perf_event_header)) {
cc9784bd 1767 err = readn(fd, p, size - sizeof(struct perf_event_header));
794e43b5
TZ		 1768 if (err <= 0) {
1769 if (err == 0) {
1770 pr_err("unexpected end of event stream\n");
1771 goto done;
1772 }
8dc58101 1773
794e43b5
TZ		 1774 pr_err("failed to read event data\n");
1775 goto out_err;
1776 }
8dc58101
TZ		 1777 }
1778
b7b61cbe 1779 if ((skip = perf_session__process_event(session, event, head)) < 0) {
9389a460 1780 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
444d2866 1781 head, event->header.size, event->header.type);
9389a460
JO		 1782 err = -EINVAL;
1783 goto out_err;
8dc58101
TZ		 1784 }
1785
1786 head += size;
1787
8dc58101
TZ		 1788 if (skip > 0)
1789 head += skip;
1790
1791 if (!session_done())
1792 goto more;
1793done:
8c16b649 1794 /* do the final flush for ordered samples */
b7b61cbe 1795 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1796 if (err)
1797 goto out_err;
1798 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1799 if (err)
1800 goto out_err;
1801 err = perf_session__flush_thread_stacks(session);
8dc58101 1802out_err:
444d2866 1803 free(buf);
075ca1eb
JO		 1804 if (!tool->no_warn)
1805 perf_session__warn_about_errors(session);
adc56ed1 1806 ordered_events__free(&session->ordered_events);
c446870d 1807 auxtrace__free_events(session);
8dc58101
TZ		 1808 return err;
1809}
1810
998bedc8
FW		 1811static union perf_event *
1812fetch_mmaped_event(struct perf_session *session,
1813 u64 head, size_t mmap_size, char *buf)
1814{
1815 union perf_event *event;
1816
1817 /*
1818 * Ensure we have enough space remaining to read
1819 * the size of the event in the headers.
1820 */
1821 if (head + sizeof(event->header) > mmap_size)
1822 return NULL;
1823
1824 event = (union perf_event *)(buf + head);
1825
1826 if (session->header.needs_swap)
1827 perf_event_header__bswap(&event->header);
1828
27389d78
AH		 1829 if (head + event->header.size > mmap_size) {
1830 /* We're not fetching the event so swap back again */
1831 if (session->header.needs_swap)
1832 perf_event_header__bswap(&event->header);
998bedc8 1833 return NULL;
27389d78 1834 }
998bedc8
FW		 1835
1836 return event;
1837}
1838
35d48ddf
DM		 1839/*
1840 * On 64bit we can mmap the data file in one go. No need for tiny mmap
1841 * slices. On 32bit we use 32MB.
1842 */
1843#if BITS_PER_LONG == 64
1844#define MMAP_SIZE ULLONG_MAX
1845#define NUM_MMAPS 1
1846#else
1847#define MMAP_SIZE (32 * 1024 * 1024ULL)
1848#define NUM_MMAPS 128
1849#endif
1850
e51f8061
JO		 1851struct reader;
1852
1853typedef s64 (*reader_cb_t)(struct perf_session *session,
1854 union perf_event *event,
1855 u64 file_offset);
1856
82715eb1 1857struct reader {
e51f8061
JO		 1858 int fd;
1859 u64 data_size;
1860 u64 data_offset;
1861 reader_cb_t process;
82715eb1
JO		 1862};
1863
3c7b67b2
JO		 1864static int
1865reader__process_events(struct reader *rd, struct perf_session *session,
1866 struct ui_progress *prog)
06aae590 1867{
3c7b67b2 1868 u64 data_size = rd->data_size;
d5652d86 1869 u64 head, page_offset, file_offset, file_pos, size;
3c7b67b2 1870 int err = 0, mmap_prot, mmap_flags, map_idx = 0;
0c1fe6b2 1871 size_t mmap_size;
35d48ddf 1872 char *buf, *mmaps[NUM_MMAPS];
8115d60c 1873 union perf_event *event;
d5652d86 1874 s64 skip;
0331ee0c 1875
3c7b67b2 1876 page_offset = page_size * (rd->data_offset / page_size);
0331ee0c 1877 file_offset = page_offset;
3c7b67b2 1878 head = rd->data_offset - page_offset;
06aae590 1879
3c7b67b2 1880 ui_progress__init_size(prog, data_size, "Processing events...");
381c02f6 1881
3c7b67b2 1882 data_size += rd->data_offset;
55b44629 1883
35d48ddf 1884 mmap_size = MMAP_SIZE;
4f5a473d
JO		 1885 if (mmap_size > data_size) {
1886 mmap_size = data_size;
919d86d3
AH		 1887 session->one_mmap = true;
1888 }
55b44629 1889
fe174207
TG		 1890 memset(mmaps, 0, sizeof(mmaps));
1891
ba21594c
ACM		 1892 mmap_prot = PROT_READ;
1893 mmap_flags = MAP_SHARED;
1894
0331ee0c 1895 if (session->header.needs_swap) {
ba21594c
ACM		 1896 mmap_prot |= PROT_WRITE;
1897 mmap_flags = MAP_PRIVATE;
1898 }
06aae590 1899remap:
3c7b67b2 1900 buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, rd->fd,
55b44629 1901 file_offset);
06aae590
ACM		 1902 if (buf == MAP_FAILED) {
1903 pr_err("failed to mmap file\n");
1904 err = -errno;
3c7b67b2 1905 goto out;
06aae590 1906 }
fe174207
TG		 1907 mmaps[map_idx] = buf;
1908 map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1);
d6513281 1909 file_pos = file_offset + head;
919d86d3
AH		 1910 if (session->one_mmap) {
1911 session->one_mmap_addr = buf;
1912 session->one_mmap_offset = file_offset;
1913 }
06aae590
ACM		 1914
1915more:
998bedc8
FW		 1916 event = fetch_mmaped_event(session, head, mmap_size, buf);
1917 if (!event) {
fe174207
TG		 1918 if (mmaps[map_idx]) {
1919 munmap(mmaps[map_idx], mmap_size);
1920 mmaps[map_idx] = NULL;
1921 }
06aae590 1922
0331ee0c
TG		 1923 page_offset = page_size * (head / page_size);
1924 file_offset += page_offset;
1925 head -= page_offset;
06aae590
ACM		 1926 goto remap;
1927 }
1928
1929 size = event->header.size;
1930
27389d78 1931 if (size < sizeof(struct perf_event_header) ||
e51f8061 1932 (skip = rd->process(session, event, file_pos)) < 0) {
9389a460
JO		 1933 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
1934 file_offset + head, event->header.size,
1935 event->header.type);
1936 err = -EINVAL;
3c7b67b2 1937 goto out;
06aae590
ACM		 1938 }
1939
6f917c70
AH		 1940 if (skip)
1941 size += skip;
1942
06aae590 1943 head += size;
d6513281 1944 file_pos += size;
06aae590 1945
3c7b67b2 1946 ui_progress__update(prog, size);
55b44629 1947
33e940a2 1948 if (session_done())
8c16b649 1949 goto out;
33e940a2 1950
4f5a473d 1951 if (file_pos < data_size)
06aae590 1952 goto more;
d6513281 1953
8c16b649 1954out:
3c7b67b2
JO		 1955 return err;
1956}
1957
e51f8061
JO		 1958static s64 process_simple(struct perf_session *session,
1959 union perf_event *event,
1960 u64 file_offset)
1961{
1962 return perf_session__process_event(session, event, file_offset);
1963}
1964
3c7b67b2
JO		 1965static int __perf_session__process_events(struct perf_session *session)
1966{
1967 struct reader rd = {
1968 .fd = perf_data__fd(session->data),
1969 .data_size = session->header.data_size,
1970 .data_offset = session->header.data_offset,
e51f8061 1971 .process = process_simple,
3c7b67b2
JO		 1972 };
1973 struct ordered_events *oe = &session->ordered_events;
1974 struct perf_tool *tool = session->tool;
1975 struct ui_progress prog;
1976 int err;
1977
1978 perf_tool__fill_defaults(tool);
1979
1980 if (rd.data_size == 0)
1981 return -1;
1982
1983 ui_progress__init_size(&prog, rd.data_size, "Processing events...");
1984
1985 err = reader__process_events(&rd, session, &prog);
1986 if (err)
1987 goto out_err;
c61e52ee 1988 /* do the final flush for ordered samples */
b7b61cbe 1989 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
c446870d
AH		 1990 if (err)
1991 goto out_err;
1992 err = auxtrace__flush_events(session, tool);
a5499b37
AH		 1993 if (err)
1994 goto out_err;
1995 err = perf_session__flush_thread_stacks(session);
06aae590 1996out_err:
a5580f3e 1997 ui_progress__finish();
075ca1eb
JO		 1998 if (!tool->no_warn)
1999 perf_session__warn_about_errors(session);
b26dc730
WN		 2000 /*
2001 * We may switching perf.data output, make ordered_events
2002 * reusable.
2003 */
2004 ordered_events__reinit(&session->ordered_events);
c446870d 2005 auxtrace__free_events(session);
919d86d3 2006 session->one_mmap = false;
06aae590
ACM		 2007 return err;
2008}
27295592 2009
b7b61cbe 2010int perf_session__process_events(struct perf_session *session)
6122e4e4 2011{
9d8b172f 2012 if (perf_session__register_idle_thread(session) < 0)
6122e4e4
ACM		 2013 return -ENOMEM;
2014
7ba4da10
JO		 2015 if (perf_data__is_pipe(session->data))
2016 return __perf_session__process_pipe_events(session);
88ca895d 2017
7ba4da10 2018 return __perf_session__process_events(session);
6122e4e4
ACM		 2019}
2020
7f3be652 2021bool perf_session__has_traces(struct perf_session *session, const char *msg)
27295592 2022{
93ea01c2
DA		 2023 struct perf_evsel *evsel;
2024
e5cadb93 2025 evlist__for_each_entry(session->evlist, evsel) {
93ea01c2
DA		 2026 if (evsel->attr.type == PERF_TYPE_TRACEPOINT)
2027 return true;
27295592
ACM		 2028 }
2029
93ea01c2
DA		 2030 pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
2031 return false;
27295592 2032}
56b03f3c 2033
3183f8ca 2034int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name, u64 addr)
56b03f3c
ACM		 2035{
2036 char *bracket;
a1645ce1 2037 struct ref_reloc_sym *ref;
3183f8ca 2038 struct kmap *kmap;
a1645ce1
ZY		 2039
2040 ref = zalloc(sizeof(struct ref_reloc_sym));
2041 if (ref == NULL)
2042 return -ENOMEM;
56b03f3c 2043
a1645ce1
ZY		 2044 ref->name = strdup(symbol_name);
2045 if (ref->name == NULL) {
2046 free(ref);
56b03f3c 2047 return -ENOMEM;
a1645ce1 2048 }
56b03f3c 2049
a1645ce1 2050 bracket = strchr(ref->name, ']');
56b03f3c
ACM		 2051 if (bracket)
2052 *bracket = '\0';
2053
a1645ce1 2054 ref->addr = addr;
9de89fe7 2055
3183f8ca
ACM		 2056 kmap = map__kmap(map);
2057 if (kmap)
a1645ce1 2058 kmap->ref_reloc_sym = ref;
9de89fe7 2059
56b03f3c
ACM		 2060 return 0;
2061}
1f626bc3 2062
316c7136 2063size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
1f626bc3 2064{
316c7136 2065 return machines__fprintf_dsos(&session->machines, fp);
1f626bc3 2066}
f869097e 2067
316c7136 2068size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
417c2ff6 2069 bool (skip)(struct dso *dso, int parm), int parm)
f869097e 2070{
316c7136 2071 return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
f869097e 2072}
e248de33
ACM		 2073
2074size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
2075{
c446870d
AH		 2076 size_t ret;
2077 const char *msg = "";
2078
2079 if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
2080 msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
2081
fe692ac8 2082 ret = fprintf(fp, "\nAggregated stats:%s\n", msg);
e248de33 2083
75be989a 2084 ret += events_stats__fprintf(&session->evlist->stats, fp);
e248de33
ACM		 2085 return ret;
2086}
c0230b2b 2087
b424eba2
ACM		 2088size_t perf_session__fprintf(struct perf_session *session, FILE *fp)
2089{
2090 /*
2091 * FIXME: Here we have to actually print all the machines in this
2092 * session, not just the host...
2093 */
876650e6 2094 return machine__fprintf(&session->machines.host, fp);
b424eba2
ACM		 2095}
2096
9cbdb702
DA		 2097struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
2098 unsigned int type)
2099{
2100 struct perf_evsel *pos;
2101
e5cadb93 2102 evlist__for_each_entry(session->evlist, pos) {
9cbdb702
DA		 2103 if (pos->attr.type == type)
2104 return pos;
2105 }
2106 return NULL;
2107}
2108
5d67be97
AB		 2109int perf_session__cpu_bitmap(struct perf_session *session,
2110 const char *cpu_list, unsigned long *cpu_bitmap)
2111{
8bac41cb 2112 int i, err = -1;
5d67be97
AB		 2113 struct cpu_map *map;
2114
2115 for (i = 0; i < PERF_TYPE_MAX; ++i) {
2116 struct perf_evsel *evsel;
2117
2118 evsel = perf_session__find_first_evtype(session, i);
2119 if (!evsel)
2120 continue;
2121
2122 if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
2123 pr_err("File does not contain CPU events. "
30795467 2124 "Remove -C option to proceed.\n");
5d67be97
AB		 2125 return -1;
2126 }
2127 }
2128
2129 map = cpu_map__new(cpu_list);
47fbe53b
DA		 2130 if (map == NULL) {
2131 pr_err("Invalid cpu_list\n");
2132 return -1;
2133 }
5d67be97
AB		 2134
2135 for (i = 0; i < map->nr; i++) {
2136 int cpu = map->map[i];
2137
2138 if (cpu >= MAX_NR_CPUS) {
2139 pr_err("Requested CPU %d too large. "
2140 "Consider raising MAX_NR_CPUS\n", cpu);
8bac41cb 2141 goto out_delete_map;
5d67be97
AB		 2142 }
2143
2144 set_bit(cpu, cpu_bitmap);
2145 }
2146
8bac41cb
SF		 2147 err = 0;
2148
2149out_delete_map:
f30a79b0 2150 cpu_map__put(map);
8bac41cb 2151 return err;
5d67be97 2152}
fbe96f29
SE		 2153
2154void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
2155 bool full)
2156{
fbe96f29
SE		 2157 if (session == NULL || fp == NULL)
2158 return;
2159
fbe96f29 2160 fprintf(fp, "# ========\n");
fbe96f29
SE		 2161 perf_header__fprintf_info(session, fp, full);
2162 fprintf(fp, "# ========\n#\n");
2163}
da378962
ACM		 2164
2165
2166int __perf_session__set_tracepoints_handlers(struct perf_session *session,
2167 const struct perf_evsel_str_handler *assocs,
2168 size_t nr_assocs)
2169{
da378962 2170 struct perf_evsel *evsel;
da378962
ACM		 2171 size_t i;
2172 int err;
2173
2174 for (i = 0; i < nr_assocs; i++) {
ccf53eac
ACM		 2175 /*
2176 * Adding a handler for an event not in the session,
2177 * just ignore it.
2178 */
2179 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name);
da378962 2180 if (evsel == NULL)
ccf53eac 2181 continue;
da378962
ACM		 2182
2183 err = -EEXIST;
744a9719 2184 if (evsel->handler != NULL)
ccf53eac 2185 goto out;
744a9719 2186 evsel->handler = assocs[i].handler;
da378962
ACM		 2187 }
2188
2189 err = 0;
2190out:
2191 return err;
da378962 2192}
3c659eed 2193
89f1688a
JO		 2194int perf_event__process_id_index(struct perf_session *session,
2195 union perf_event *event)
3c659eed
AH		 2196{
2197 struct perf_evlist *evlist = session->evlist;
2198 struct id_index_event *ie = &event->id_index;
2199 size_t i, nr, max_nr;
2200
2201 max_nr = (ie->header.size - sizeof(struct id_index_event)) /
2202 sizeof(struct id_index_entry);
2203 nr = ie->nr;
2204 if (nr > max_nr)
2205 return -EINVAL;
2206
2207 if (dump_trace)
2208 fprintf(stdout, " nr: %zu\n", nr);
2209
2210 for (i = 0; i < nr; i++) {
2211 struct id_index_entry *e = &ie->entries[i];
2212 struct perf_sample_id *sid;
2213
2214 if (dump_trace) {
2215 fprintf(stdout, " ... id: %"PRIu64, e->id);
2216 fprintf(stdout, " idx: %"PRIu64, e->idx);
2217 fprintf(stdout, " cpu: %"PRId64, e->cpu);
2218 fprintf(stdout, " tid: %"PRId64"\n", e->tid);
2219 }
2220
2221 sid = perf_evlist__id2sid(evlist, e->id);
2222 if (!sid)
2223 return -ENOENT;
2224 sid->idx = e->idx;
2225 sid->cpu = e->cpu;
2226 sid->tid = e->tid;
2227 }
2228 return 0;
2229}
2230
2231int perf_event__synthesize_id_index(struct perf_tool *tool,
2232 perf_event__handler_t process,
2233 struct perf_evlist *evlist,
2234 struct machine *machine)
2235{
2236 union perf_event *ev;
2237 struct perf_evsel *evsel;
2238 size_t nr = 0, i = 0, sz, max_nr, n;
2239 int err;
2240
2241 pr_debug2("Synthesizing id index\n");
2242
2243 max_nr = (UINT16_MAX - sizeof(struct id_index_event)) /
2244 sizeof(struct id_index_entry);
2245
e5cadb93 2246 evlist__for_each_entry(evlist, evsel)
3c659eed
AH		 2247 nr += evsel->ids;
2248
2249 n = nr > max_nr ? max_nr : nr;
2250 sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry);
2251 ev = zalloc(sz);
2252 if (!ev)
2253 return -ENOMEM;
2254
2255 ev->id_index.header.type = PERF_RECORD_ID_INDEX;
2256 ev->id_index.header.size = sz;
2257 ev->id_index.nr = n;
2258
e5cadb93 2259 evlist__for_each_entry(evlist, evsel) {
3c659eed
AH		 2260 u32 j;
2261
2262 for (j = 0; j < evsel->ids; j++) {
2263 struct id_index_entry *e;
2264 struct perf_sample_id *sid;
2265
2266 if (i >= n) {
2267 err = process(tool, ev, NULL, machine);
2268 if (err)
2269 goto out_err;
2270 nr -= n;
2271 i = 0;
2272 }
2273
2274 e = &ev->id_index.entries[i++];
2275
2276 e->id = evsel->id[j];
2277
2278 sid = perf_evlist__id2sid(evlist, e->id);
2279 if (!sid) {
2280 free(ev);
2281 return -ENOENT;
2282 }
2283
2284 e->idx = sid->idx;
2285 e->cpu = sid->cpu;
2286 e->tid = sid->tid;
2287 }
2288 }
2289
2290 sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry);
2291 ev->id_index.header.size = sz;
2292 ev->id_index.nr = nr;
2293
2294 err = process(tool, ev, NULL, machine);
2295out_err:
2296 free(ev);
2297
2298 return err;
2299}
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