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Commit | Line | Data |
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454c407e TZ |
1 | /* |
2 | * builtin-inject.c | |
3 | * | |
4 | * Builtin inject command: Examine the live mode (stdin) event stream | |
5 | * and repipe it to stdout while optionally injecting additional | |
6 | * events into it. | |
7 | */ | |
8 | #include "builtin.h" | |
9 | ||
10 | #include "perf.h" | |
26a031e1 AV |
11 | #include "util/color.h" |
12 | #include "util/evlist.h" | |
13 | #include "util/evsel.h" | |
454c407e | 14 | #include "util/session.h" |
45694aa7 | 15 | #include "util/tool.h" |
454c407e | 16 | #include "util/debug.h" |
54a3cf59 | 17 | #include "util/build-id.h" |
f5fc1412 | 18 | #include "util/data.h" |
0f0aa5e0 | 19 | #include "util/auxtrace.h" |
9b07e27f | 20 | #include "util/jit.h" |
454c407e | 21 | |
4b6ab94e | 22 | #include <subcmd/parse-options.h> |
454c407e | 23 | |
26a031e1 AV |
24 | #include <linux/list.h> |
25 | ||
5ded57ac | 26 | struct perf_inject { |
3406912c | 27 | struct perf_tool tool; |
1cb8bdcc | 28 | struct perf_session *session; |
3406912c JO |
29 | bool build_ids; |
30 | bool sched_stat; | |
cd10b289 | 31 | bool have_auxtrace; |
f56fb986 | 32 | bool strip; |
9b07e27f | 33 | bool jit_mode; |
3406912c JO |
34 | const char *input_name; |
35 | struct perf_data_file output; | |
36 | u64 bytes_written; | |
73117308 | 37 | u64 aux_id; |
3406912c | 38 | struct list_head samples; |
0f0aa5e0 | 39 | struct itrace_synth_opts itrace_synth_opts; |
26a031e1 AV |
40 | }; |
41 | ||
42 | struct event_entry { | |
43 | struct list_head node; | |
44 | u32 tid; | |
45 | union perf_event event[0]; | |
5ded57ac | 46 | }; |
454c407e | 47 | |
cd17a9b5 | 48 | static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) |
454c407e | 49 | { |
3406912c | 50 | ssize_t size; |
454c407e | 51 | |
cd17a9b5 | 52 | size = perf_data_file__write(&inject->output, buf, sz); |
3406912c JO |
53 | if (size < 0) |
54 | return -errno; | |
454c407e | 55 | |
3406912c | 56 | inject->bytes_written += size; |
454c407e TZ |
57 | return 0; |
58 | } | |
59 | ||
cd17a9b5 AH |
60 | static int perf_event__repipe_synth(struct perf_tool *tool, |
61 | union perf_event *event) | |
62 | { | |
63 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
64 | tool); | |
65 | ||
66 | return output_bytes(inject, event, event->header.size); | |
67 | } | |
68 | ||
d704ebda ACM |
69 | static int perf_event__repipe_oe_synth(struct perf_tool *tool, |
70 | union perf_event *event, | |
71 | struct ordered_events *oe __maybe_unused) | |
72 | { | |
73 | return perf_event__repipe_synth(tool, event); | |
74 | } | |
75 | ||
e12b202f | 76 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
77 | static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused, |
78 | union perf_event *event __maybe_unused, | |
79 | struct ordered_events *oe __maybe_unused) | |
80 | { | |
81 | return 0; | |
82 | } | |
83 | #endif | |
84 | ||
45694aa7 | 85 | static int perf_event__repipe_op2_synth(struct perf_tool *tool, |
743eb868 | 86 | union perf_event *event, |
1d037ca1 IT |
87 | struct perf_session *session |
88 | __maybe_unused) | |
743eb868 | 89 | { |
63c2c9f8 | 90 | return perf_event__repipe_synth(tool, event); |
743eb868 ACM |
91 | } |
92 | ||
47c3d109 AH |
93 | static int perf_event__repipe_attr(struct perf_tool *tool, |
94 | union perf_event *event, | |
95 | struct perf_evlist **pevlist) | |
10d0f086 | 96 | { |
89c97d93 AH |
97 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
98 | tool); | |
1a1ed1ba | 99 | int ret; |
47c3d109 AH |
100 | |
101 | ret = perf_event__process_attr(tool, event, pevlist); | |
1a1ed1ba SE |
102 | if (ret) |
103 | return ret; | |
104 | ||
a261e4a0 | 105 | if (!inject->output.is_pipe) |
89c97d93 AH |
106 | return 0; |
107 | ||
47c3d109 | 108 | return perf_event__repipe_synth(tool, event); |
10d0f086 ACM |
109 | } |
110 | ||
e31f0d01 AH |
111 | #ifdef HAVE_AUXTRACE_SUPPORT |
112 | ||
113 | static int copy_bytes(struct perf_inject *inject, int fd, off_t size) | |
114 | { | |
115 | char buf[4096]; | |
116 | ssize_t ssz; | |
117 | int ret; | |
118 | ||
119 | while (size > 0) { | |
120 | ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); | |
121 | if (ssz < 0) | |
122 | return -errno; | |
123 | ret = output_bytes(inject, buf, ssz); | |
124 | if (ret) | |
125 | return ret; | |
126 | size -= ssz; | |
127 | } | |
128 | ||
129 | return 0; | |
130 | } | |
131 | ||
cd17a9b5 AH |
132 | static s64 perf_event__repipe_auxtrace(struct perf_tool *tool, |
133 | union perf_event *event, | |
134 | struct perf_session *session | |
135 | __maybe_unused) | |
136 | { | |
137 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
138 | tool); | |
139 | int ret; | |
140 | ||
cd10b289 AH |
141 | inject->have_auxtrace = true; |
142 | ||
99fa2984 AH |
143 | if (!inject->output.is_pipe) { |
144 | off_t offset; | |
145 | ||
146 | offset = lseek(inject->output.fd, 0, SEEK_CUR); | |
147 | if (offset == -1) | |
148 | return -errno; | |
149 | ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, | |
150 | event, offset); | |
151 | if (ret < 0) | |
152 | return ret; | |
153 | } | |
154 | ||
cd17a9b5 AH |
155 | if (perf_data_file__is_pipe(session->file) || !session->one_mmap) { |
156 | ret = output_bytes(inject, event, event->header.size); | |
157 | if (ret < 0) | |
158 | return ret; | |
159 | ret = copy_bytes(inject, perf_data_file__fd(session->file), | |
160 | event->auxtrace.size); | |
161 | } else { | |
162 | ret = output_bytes(inject, event, | |
163 | event->header.size + event->auxtrace.size); | |
164 | } | |
165 | if (ret < 0) | |
166 | return ret; | |
167 | ||
168 | return event->auxtrace.size; | |
169 | } | |
170 | ||
e31f0d01 AH |
171 | #else |
172 | ||
173 | static s64 | |
174 | perf_event__repipe_auxtrace(struct perf_tool *tool __maybe_unused, | |
175 | union perf_event *event __maybe_unused, | |
176 | struct perf_session *session __maybe_unused) | |
177 | { | |
178 | pr_err("AUX area tracing not supported\n"); | |
179 | return -EINVAL; | |
180 | } | |
181 | ||
182 | #endif | |
183 | ||
45694aa7 | 184 | static int perf_event__repipe(struct perf_tool *tool, |
d20deb64 | 185 | union perf_event *event, |
1d037ca1 | 186 | struct perf_sample *sample __maybe_unused, |
63c2c9f8 | 187 | struct machine *machine __maybe_unused) |
640c03ce | 188 | { |
63c2c9f8 | 189 | return perf_event__repipe_synth(tool, event); |
640c03ce ACM |
190 | } |
191 | ||
f56fb986 AH |
192 | static int perf_event__drop(struct perf_tool *tool __maybe_unused, |
193 | union perf_event *event __maybe_unused, | |
194 | struct perf_sample *sample __maybe_unused, | |
195 | struct machine *machine __maybe_unused) | |
196 | { | |
197 | return 0; | |
198 | } | |
199 | ||
73117308 AH |
200 | static int perf_event__drop_aux(struct perf_tool *tool, |
201 | union perf_event *event __maybe_unused, | |
202 | struct perf_sample *sample, | |
203 | struct machine *machine __maybe_unused) | |
204 | { | |
205 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
206 | ||
207 | if (!inject->aux_id) | |
208 | inject->aux_id = sample->id; | |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
26a031e1 AV |
213 | typedef int (*inject_handler)(struct perf_tool *tool, |
214 | union perf_event *event, | |
215 | struct perf_sample *sample, | |
216 | struct perf_evsel *evsel, | |
217 | struct machine *machine); | |
218 | ||
45694aa7 | 219 | static int perf_event__repipe_sample(struct perf_tool *tool, |
d20deb64 | 220 | union perf_event *event, |
26a031e1 AV |
221 | struct perf_sample *sample, |
222 | struct perf_evsel *evsel, | |
223 | struct machine *machine) | |
9e69c210 | 224 | { |
744a9719 ACM |
225 | if (evsel->handler) { |
226 | inject_handler f = evsel->handler; | |
26a031e1 AV |
227 | return f(tool, event, sample, evsel, machine); |
228 | } | |
229 | ||
54a3cf59 AV |
230 | build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
231 | ||
63c2c9f8 | 232 | return perf_event__repipe_synth(tool, event); |
9e69c210 ACM |
233 | } |
234 | ||
45694aa7 | 235 | static int perf_event__repipe_mmap(struct perf_tool *tool, |
d20deb64 | 236 | union perf_event *event, |
8115d60c | 237 | struct perf_sample *sample, |
743eb868 | 238 | struct machine *machine) |
454c407e TZ |
239 | { |
240 | int err; | |
241 | ||
45694aa7 ACM |
242 | err = perf_event__process_mmap(tool, event, sample, machine); |
243 | perf_event__repipe(tool, event, sample, machine); | |
454c407e TZ |
244 | |
245 | return err; | |
246 | } | |
247 | ||
e12b202f | 248 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
249 | static int perf_event__jit_repipe_mmap(struct perf_tool *tool, |
250 | union perf_event *event, | |
251 | struct perf_sample *sample, | |
252 | struct machine *machine) | |
253 | { | |
254 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
255 | u64 n = 0; | |
570735b3 | 256 | int ret; |
9b07e27f SE |
257 | |
258 | /* | |
259 | * if jit marker, then inject jit mmaps and generate ELF images | |
260 | */ | |
570735b3 AH |
261 | ret = jit_process(inject->session, &inject->output, machine, |
262 | event->mmap.filename, sample->pid, &n); | |
263 | if (ret < 0) | |
264 | return ret; | |
265 | if (ret) { | |
9b07e27f SE |
266 | inject->bytes_written += n; |
267 | return 0; | |
268 | } | |
269 | return perf_event__repipe_mmap(tool, event, sample, machine); | |
270 | } | |
271 | #endif | |
272 | ||
5c5e854b SE |
273 | static int perf_event__repipe_mmap2(struct perf_tool *tool, |
274 | union perf_event *event, | |
275 | struct perf_sample *sample, | |
276 | struct machine *machine) | |
277 | { | |
278 | int err; | |
279 | ||
280 | err = perf_event__process_mmap2(tool, event, sample, machine); | |
281 | perf_event__repipe(tool, event, sample, machine); | |
282 | ||
283 | return err; | |
284 | } | |
285 | ||
e12b202f | 286 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
287 | static int perf_event__jit_repipe_mmap2(struct perf_tool *tool, |
288 | union perf_event *event, | |
289 | struct perf_sample *sample, | |
290 | struct machine *machine) | |
291 | { | |
292 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
293 | u64 n = 0; | |
570735b3 | 294 | int ret; |
9b07e27f SE |
295 | |
296 | /* | |
297 | * if jit marker, then inject jit mmaps and generate ELF images | |
298 | */ | |
570735b3 AH |
299 | ret = jit_process(inject->session, &inject->output, machine, |
300 | event->mmap2.filename, sample->pid, &n); | |
301 | if (ret < 0) | |
302 | return ret; | |
303 | if (ret) { | |
9b07e27f SE |
304 | inject->bytes_written += n; |
305 | return 0; | |
306 | } | |
307 | return perf_event__repipe_mmap2(tool, event, sample, machine); | |
308 | } | |
309 | #endif | |
310 | ||
f62d3f0f | 311 | static int perf_event__repipe_fork(struct perf_tool *tool, |
d20deb64 | 312 | union perf_event *event, |
8115d60c | 313 | struct perf_sample *sample, |
743eb868 | 314 | struct machine *machine) |
454c407e TZ |
315 | { |
316 | int err; | |
317 | ||
f62d3f0f | 318 | err = perf_event__process_fork(tool, event, sample, machine); |
45694aa7 | 319 | perf_event__repipe(tool, event, sample, machine); |
454c407e TZ |
320 | |
321 | return err; | |
322 | } | |
323 | ||
0f0aa5e0 AH |
324 | static int perf_event__repipe_comm(struct perf_tool *tool, |
325 | union perf_event *event, | |
326 | struct perf_sample *sample, | |
327 | struct machine *machine) | |
328 | { | |
329 | int err; | |
330 | ||
331 | err = perf_event__process_comm(tool, event, sample, machine); | |
332 | perf_event__repipe(tool, event, sample, machine); | |
333 | ||
334 | return err; | |
335 | } | |
336 | ||
337 | static int perf_event__repipe_exit(struct perf_tool *tool, | |
338 | union perf_event *event, | |
339 | struct perf_sample *sample, | |
340 | struct machine *machine) | |
341 | { | |
342 | int err; | |
343 | ||
344 | err = perf_event__process_exit(tool, event, sample, machine); | |
345 | perf_event__repipe(tool, event, sample, machine); | |
346 | ||
347 | return err; | |
348 | } | |
349 | ||
47c3d109 AH |
350 | static int perf_event__repipe_tracing_data(struct perf_tool *tool, |
351 | union perf_event *event, | |
8115d60c | 352 | struct perf_session *session) |
454c407e TZ |
353 | { |
354 | int err; | |
355 | ||
47c3d109 AH |
356 | perf_event__repipe_synth(tool, event); |
357 | err = perf_event__process_tracing_data(tool, event, session); | |
454c407e TZ |
358 | |
359 | return err; | |
360 | } | |
361 | ||
0f0aa5e0 AH |
362 | static int perf_event__repipe_id_index(struct perf_tool *tool, |
363 | union perf_event *event, | |
364 | struct perf_session *session) | |
365 | { | |
366 | int err; | |
367 | ||
368 | perf_event__repipe_synth(tool, event); | |
369 | err = perf_event__process_id_index(tool, event, session); | |
370 | ||
371 | return err; | |
372 | } | |
373 | ||
c824c433 | 374 | static int dso__read_build_id(struct dso *dso) |
454c407e | 375 | { |
c824c433 | 376 | if (dso->has_build_id) |
090f7204 | 377 | return 0; |
454c407e | 378 | |
c824c433 ACM |
379 | if (filename__read_build_id(dso->long_name, dso->build_id, |
380 | sizeof(dso->build_id)) > 0) { | |
381 | dso->has_build_id = true; | |
090f7204 ACM |
382 | return 0; |
383 | } | |
454c407e | 384 | |
090f7204 ACM |
385 | return -1; |
386 | } | |
454c407e | 387 | |
c824c433 | 388 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
743eb868 | 389 | struct machine *machine) |
090f7204 ACM |
390 | { |
391 | u16 misc = PERF_RECORD_MISC_USER; | |
090f7204 | 392 | int err; |
454c407e | 393 | |
c824c433 ACM |
394 | if (dso__read_build_id(dso) < 0) { |
395 | pr_debug("no build_id found for %s\n", dso->long_name); | |
090f7204 ACM |
396 | return -1; |
397 | } | |
454c407e | 398 | |
c824c433 | 399 | if (dso->kernel) |
090f7204 | 400 | misc = PERF_RECORD_MISC_KERNEL; |
454c407e | 401 | |
c824c433 | 402 | err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe, |
743eb868 | 403 | machine); |
090f7204 | 404 | if (err) { |
c824c433 | 405 | pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
454c407e TZ |
406 | return -1; |
407 | } | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
45694aa7 | 412 | static int perf_event__inject_buildid(struct perf_tool *tool, |
d20deb64 | 413 | union perf_event *event, |
8115d60c | 414 | struct perf_sample *sample, |
1d037ca1 | 415 | struct perf_evsel *evsel __maybe_unused, |
743eb868 | 416 | struct machine *machine) |
454c407e TZ |
417 | { |
418 | struct addr_location al; | |
419 | struct thread *thread; | |
420 | u8 cpumode; | |
454c407e TZ |
421 | |
422 | cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
423 | ||
13ce34df | 424 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
454c407e TZ |
425 | if (thread == NULL) { |
426 | pr_err("problem processing %d event, skipping it.\n", | |
427 | event->header.type); | |
454c407e TZ |
428 | goto repipe; |
429 | } | |
430 | ||
bb871a9c | 431 | thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, &al); |
454c407e TZ |
432 | |
433 | if (al.map != NULL) { | |
434 | if (!al.map->dso->hit) { | |
435 | al.map->dso->hit = 1; | |
090f7204 | 436 | if (map__load(al.map, NULL) >= 0) { |
45694aa7 | 437 | dso__inject_build_id(al.map->dso, tool, machine); |
090f7204 ACM |
438 | /* |
439 | * If this fails, too bad, let the other side | |
440 | * account this as unresolved. | |
441 | */ | |
393be2e3 | 442 | } else { |
89fe808a | 443 | #ifdef HAVE_LIBELF_SUPPORT |
454c407e TZ |
444 | pr_warning("no symbols found in %s, maybe " |
445 | "install a debug package?\n", | |
446 | al.map->dso->long_name); | |
393be2e3 NK |
447 | #endif |
448 | } | |
454c407e TZ |
449 | } |
450 | } | |
451 | ||
b91fc39f | 452 | thread__put(thread); |
454c407e | 453 | repipe: |
45694aa7 | 454 | perf_event__repipe(tool, event, sample, machine); |
090f7204 | 455 | return 0; |
454c407e TZ |
456 | } |
457 | ||
26a031e1 AV |
458 | static int perf_inject__sched_process_exit(struct perf_tool *tool, |
459 | union perf_event *event __maybe_unused, | |
460 | struct perf_sample *sample, | |
461 | struct perf_evsel *evsel __maybe_unused, | |
462 | struct machine *machine __maybe_unused) | |
463 | { | |
464 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
465 | struct event_entry *ent; | |
466 | ||
467 | list_for_each_entry(ent, &inject->samples, node) { | |
468 | if (sample->tid == ent->tid) { | |
469 | list_del_init(&ent->node); | |
470 | free(ent); | |
471 | break; | |
472 | } | |
473 | } | |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
478 | static int perf_inject__sched_switch(struct perf_tool *tool, | |
479 | union perf_event *event, | |
480 | struct perf_sample *sample, | |
481 | struct perf_evsel *evsel, | |
482 | struct machine *machine) | |
483 | { | |
484 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
485 | struct event_entry *ent; | |
486 | ||
487 | perf_inject__sched_process_exit(tool, event, sample, evsel, machine); | |
488 | ||
489 | ent = malloc(event->header.size + sizeof(struct event_entry)); | |
490 | if (ent == NULL) { | |
491 | color_fprintf(stderr, PERF_COLOR_RED, | |
492 | "Not enough memory to process sched switch event!"); | |
493 | return -1; | |
494 | } | |
495 | ||
496 | ent->tid = sample->tid; | |
497 | memcpy(&ent->event, event, event->header.size); | |
498 | list_add(&ent->node, &inject->samples); | |
499 | return 0; | |
500 | } | |
501 | ||
502 | static int perf_inject__sched_stat(struct perf_tool *tool, | |
503 | union perf_event *event __maybe_unused, | |
504 | struct perf_sample *sample, | |
505 | struct perf_evsel *evsel, | |
506 | struct machine *machine) | |
507 | { | |
508 | struct event_entry *ent; | |
509 | union perf_event *event_sw; | |
510 | struct perf_sample sample_sw; | |
511 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
512 | u32 pid = perf_evsel__intval(evsel, sample, "pid"); | |
513 | ||
514 | list_for_each_entry(ent, &inject->samples, node) { | |
515 | if (pid == ent->tid) | |
516 | goto found; | |
517 | } | |
518 | ||
519 | return 0; | |
520 | found: | |
521 | event_sw = &ent->event[0]; | |
522 | perf_evsel__parse_sample(evsel, event_sw, &sample_sw); | |
523 | ||
524 | sample_sw.period = sample->period; | |
525 | sample_sw.time = sample->time; | |
526 | perf_event__synthesize_sample(event_sw, evsel->attr.sample_type, | |
d03f2170 AH |
527 | evsel->attr.read_format, &sample_sw, |
528 | false); | |
54a3cf59 | 529 | build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
26a031e1 AV |
530 | return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
531 | } | |
532 | ||
1d037ca1 | 533 | static void sig_handler(int sig __maybe_unused) |
454c407e TZ |
534 | { |
535 | session_done = 1; | |
536 | } | |
537 | ||
26a031e1 AV |
538 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
539 | u64 sample_type, const char *sample_msg) | |
540 | { | |
541 | struct perf_event_attr *attr = &evsel->attr; | |
542 | const char *name = perf_evsel__name(evsel); | |
543 | ||
544 | if (!(attr->sample_type & sample_type)) { | |
545 | pr_err("Samples for %s event do not have %s attribute set.", | |
546 | name, sample_msg); | |
547 | return -EINVAL; | |
548 | } | |
549 | ||
550 | return 0; | |
551 | } | |
552 | ||
f56fb986 AH |
553 | static int drop_sample(struct perf_tool *tool __maybe_unused, |
554 | union perf_event *event __maybe_unused, | |
555 | struct perf_sample *sample __maybe_unused, | |
556 | struct perf_evsel *evsel __maybe_unused, | |
557 | struct machine *machine __maybe_unused) | |
558 | { | |
559 | return 0; | |
560 | } | |
561 | ||
562 | static void strip_init(struct perf_inject *inject) | |
563 | { | |
564 | struct perf_evlist *evlist = inject->session->evlist; | |
565 | struct perf_evsel *evsel; | |
566 | ||
567 | inject->tool.context_switch = perf_event__drop; | |
568 | ||
569 | evlist__for_each(evlist, evsel) | |
570 | evsel->handler = drop_sample; | |
571 | } | |
572 | ||
573 | static bool has_tracking(struct perf_evsel *evsel) | |
574 | { | |
575 | return evsel->attr.mmap || evsel->attr.mmap2 || evsel->attr.comm || | |
576 | evsel->attr.task; | |
577 | } | |
578 | ||
579 | #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \ | |
580 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER) | |
581 | ||
582 | /* | |
583 | * In order that the perf.data file is parsable, tracking events like MMAP need | |
584 | * their selected event to exist, except if there is only 1 selected event left | |
585 | * and it has a compatible sample type. | |
586 | */ | |
587 | static bool ok_to_remove(struct perf_evlist *evlist, | |
588 | struct perf_evsel *evsel_to_remove) | |
589 | { | |
590 | struct perf_evsel *evsel; | |
591 | int cnt = 0; | |
592 | bool ok = false; | |
593 | ||
594 | if (!has_tracking(evsel_to_remove)) | |
595 | return true; | |
596 | ||
597 | evlist__for_each(evlist, evsel) { | |
598 | if (evsel->handler != drop_sample) { | |
599 | cnt += 1; | |
600 | if ((evsel->attr.sample_type & COMPAT_MASK) == | |
601 | (evsel_to_remove->attr.sample_type & COMPAT_MASK)) | |
602 | ok = true; | |
603 | } | |
604 | } | |
605 | ||
606 | return ok && cnt == 1; | |
607 | } | |
608 | ||
609 | static void strip_fini(struct perf_inject *inject) | |
610 | { | |
611 | struct perf_evlist *evlist = inject->session->evlist; | |
612 | struct perf_evsel *evsel, *tmp; | |
613 | ||
614 | /* Remove non-synthesized evsels if possible */ | |
615 | evlist__for_each_safe(evlist, tmp, evsel) { | |
616 | if (evsel->handler == drop_sample && | |
617 | ok_to_remove(evlist, evsel)) { | |
618 | pr_debug("Deleting %s\n", perf_evsel__name(evsel)); | |
619 | perf_evlist__remove(evlist, evsel); | |
620 | perf_evsel__delete(evsel); | |
621 | } | |
622 | } | |
623 | } | |
624 | ||
5ded57ac | 625 | static int __cmd_inject(struct perf_inject *inject) |
454c407e | 626 | { |
454c407e | 627 | int ret = -EINVAL; |
1cb8bdcc | 628 | struct perf_session *session = inject->session; |
3406912c | 629 | struct perf_data_file *file_out = &inject->output; |
42aa276f | 630 | int fd = perf_data_file__fd(file_out); |
0f0aa5e0 | 631 | u64 output_data_offset; |
454c407e TZ |
632 | |
633 | signal(SIGINT, sig_handler); | |
634 | ||
0f0aa5e0 AH |
635 | if (inject->build_ids || inject->sched_stat || |
636 | inject->itrace_synth_opts.set) { | |
5ded57ac | 637 | inject->tool.mmap = perf_event__repipe_mmap; |
5c5e854b | 638 | inject->tool.mmap2 = perf_event__repipe_mmap2; |
f62d3f0f | 639 | inject->tool.fork = perf_event__repipe_fork; |
5ded57ac | 640 | inject->tool.tracing_data = perf_event__repipe_tracing_data; |
454c407e TZ |
641 | } |
642 | ||
0f0aa5e0 AH |
643 | output_data_offset = session->header.data_offset; |
644 | ||
54a3cf59 AV |
645 | if (inject->build_ids) { |
646 | inject->tool.sample = perf_event__inject_buildid; | |
647 | } else if (inject->sched_stat) { | |
26a031e1 AV |
648 | struct perf_evsel *evsel; |
649 | ||
0050f7aa | 650 | evlist__for_each(session->evlist, evsel) { |
26a031e1 AV |
651 | const char *name = perf_evsel__name(evsel); |
652 | ||
653 | if (!strcmp(name, "sched:sched_switch")) { | |
654 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) | |
655 | return -EINVAL; | |
656 | ||
744a9719 | 657 | evsel->handler = perf_inject__sched_switch; |
26a031e1 | 658 | } else if (!strcmp(name, "sched:sched_process_exit")) |
744a9719 | 659 | evsel->handler = perf_inject__sched_process_exit; |
26a031e1 | 660 | else if (!strncmp(name, "sched:sched_stat_", 17)) |
744a9719 | 661 | evsel->handler = perf_inject__sched_stat; |
26a031e1 | 662 | } |
0f0aa5e0 AH |
663 | } else if (inject->itrace_synth_opts.set) { |
664 | session->itrace_synth_opts = &inject->itrace_synth_opts; | |
665 | inject->itrace_synth_opts.inject = true; | |
666 | inject->tool.comm = perf_event__repipe_comm; | |
667 | inject->tool.exit = perf_event__repipe_exit; | |
668 | inject->tool.id_index = perf_event__repipe_id_index; | |
669 | inject->tool.auxtrace_info = perf_event__process_auxtrace_info; | |
670 | inject->tool.auxtrace = perf_event__process_auxtrace; | |
73117308 AH |
671 | inject->tool.aux = perf_event__drop_aux; |
672 | inject->tool.itrace_start = perf_event__drop_aux, | |
0f0aa5e0 AH |
673 | inject->tool.ordered_events = true; |
674 | inject->tool.ordering_requires_timestamps = true; | |
675 | /* Allow space in the header for new attributes */ | |
676 | output_data_offset = 4096; | |
f56fb986 AH |
677 | if (inject->strip) |
678 | strip_init(inject); | |
26a031e1 AV |
679 | } |
680 | ||
99fa2984 AH |
681 | if (!inject->itrace_synth_opts.set) |
682 | auxtrace_index__free(&session->auxtrace_index); | |
683 | ||
3406912c | 684 | if (!file_out->is_pipe) |
0f0aa5e0 | 685 | lseek(fd, output_data_offset, SEEK_SET); |
e558a5bd | 686 | |
b7b61cbe | 687 | ret = perf_session__process_events(session); |
454c407e | 688 | |
3406912c | 689 | if (!file_out->is_pipe) { |
640dad47 | 690 | if (inject->build_ids) |
e38b43c3 AH |
691 | perf_header__set_feat(&session->header, |
692 | HEADER_BUILD_ID); | |
640dad47 AH |
693 | /* |
694 | * Keep all buildids when there is unprocessed AUX data because | |
695 | * it is not known which ones the AUX trace hits. | |
696 | */ | |
697 | if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && | |
698 | inject->have_auxtrace && !inject->itrace_synth_opts.set) | |
699 | dsos__hit_all(session); | |
0f0aa5e0 AH |
700 | /* |
701 | * The AUX areas have been removed and replaced with | |
73117308 AH |
702 | * synthesized hardware events, so clear the feature flag and |
703 | * remove the evsel. | |
0f0aa5e0 | 704 | */ |
051a01b9 | 705 | if (inject->itrace_synth_opts.set) { |
73117308 AH |
706 | struct perf_evsel *evsel; |
707 | ||
0f0aa5e0 AH |
708 | perf_header__clear_feat(&session->header, |
709 | HEADER_AUXTRACE); | |
051a01b9 AH |
710 | if (inject->itrace_synth_opts.last_branch) |
711 | perf_header__set_feat(&session->header, | |
712 | HEADER_BRANCH_STACK); | |
73117308 AH |
713 | evsel = perf_evlist__id2evsel_strict(session->evlist, |
714 | inject->aux_id); | |
715 | if (evsel) { | |
716 | pr_debug("Deleting %s\n", | |
717 | perf_evsel__name(evsel)); | |
718 | perf_evlist__remove(session->evlist, evsel); | |
719 | perf_evsel__delete(evsel); | |
720 | } | |
f56fb986 AH |
721 | if (inject->strip) |
722 | strip_fini(inject); | |
051a01b9 | 723 | } |
0f0aa5e0 | 724 | session->header.data_offset = output_data_offset; |
e558a5bd | 725 | session->header.data_size = inject->bytes_written; |
42aa276f | 726 | perf_session__write_header(session, session->evlist, fd, true); |
e558a5bd AV |
727 | } |
728 | ||
454c407e TZ |
729 | return ret; |
730 | } | |
731 | ||
1d037ca1 | 732 | int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) |
454c407e | 733 | { |
5ded57ac ACM |
734 | struct perf_inject inject = { |
735 | .tool = { | |
736 | .sample = perf_event__repipe_sample, | |
737 | .mmap = perf_event__repipe, | |
5c5e854b | 738 | .mmap2 = perf_event__repipe, |
5ded57ac ACM |
739 | .comm = perf_event__repipe, |
740 | .fork = perf_event__repipe, | |
741 | .exit = perf_event__repipe, | |
742 | .lost = perf_event__repipe, | |
d8145b3e | 743 | .lost_samples = perf_event__repipe, |
4a96f7a0 | 744 | .aux = perf_event__repipe, |
0ad21f68 | 745 | .itrace_start = perf_event__repipe, |
0286039f | 746 | .context_switch = perf_event__repipe, |
5ded57ac ACM |
747 | .read = perf_event__repipe_sample, |
748 | .throttle = perf_event__repipe, | |
749 | .unthrottle = perf_event__repipe, | |
750 | .attr = perf_event__repipe_attr, | |
47c3d109 | 751 | .tracing_data = perf_event__repipe_op2_synth, |
cd17a9b5 AH |
752 | .auxtrace_info = perf_event__repipe_op2_synth, |
753 | .auxtrace = perf_event__repipe_auxtrace, | |
754 | .auxtrace_error = perf_event__repipe_op2_synth, | |
d704ebda | 755 | .finished_round = perf_event__repipe_oe_synth, |
5ded57ac | 756 | .build_id = perf_event__repipe_op2_synth, |
3c659eed | 757 | .id_index = perf_event__repipe_op2_synth, |
5ded57ac | 758 | }, |
e558a5bd | 759 | .input_name = "-", |
26a031e1 | 760 | .samples = LIST_HEAD_INIT(inject.samples), |
3406912c JO |
761 | .output = { |
762 | .path = "-", | |
763 | .mode = PERF_DATA_MODE_WRITE, | |
764 | }, | |
5ded57ac | 765 | }; |
1cb8bdcc NK |
766 | struct perf_data_file file = { |
767 | .mode = PERF_DATA_MODE_READ, | |
768 | }; | |
769 | int ret; | |
770 | ||
9b07e27f | 771 | struct option options[] = { |
5ded57ac ACM |
772 | OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
773 | "Inject build-ids into the output stream"), | |
e558a5bd AV |
774 | OPT_STRING('i', "input", &inject.input_name, "file", |
775 | "input file name"), | |
3406912c | 776 | OPT_STRING('o', "output", &inject.output.path, "file", |
e558a5bd | 777 | "output file name"), |
26a031e1 AV |
778 | OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
779 | "Merge sched-stat and sched-switch for getting events " | |
780 | "where and how long tasks slept"), | |
e12b202f | 781 | #ifdef HAVE_JITDUMP |
9b07e27f | 782 | OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
e12b202f | 783 | #endif |
5ded57ac ACM |
784 | OPT_INCR('v', "verbose", &verbose, |
785 | "be more verbose (show build ids, etc)"), | |
a7a2b8b4 AH |
786 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
787 | "kallsyms pathname"), | |
ccaa474c | 788 | OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), |
0f0aa5e0 AH |
789 | OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
790 | NULL, "opts", "Instruction Tracing options", | |
791 | itrace_parse_synth_opts), | |
f56fb986 AH |
792 | OPT_BOOLEAN(0, "strip", &inject.strip, |
793 | "strip non-synthesized events (use with --itrace)"), | |
5ded57ac ACM |
794 | OPT_END() |
795 | }; | |
002439e8 ACM |
796 | const char * const inject_usage[] = { |
797 | "perf inject [<options>]", | |
798 | NULL | |
799 | }; | |
e12b202f | 800 | #ifndef HAVE_JITDUMP |
9b07e27f SE |
801 | set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
802 | #endif | |
002439e8 | 803 | argc = parse_options(argc, argv, options, inject_usage, 0); |
454c407e TZ |
804 | |
805 | /* | |
806 | * Any (unrecognized) arguments left? | |
807 | */ | |
808 | if (argc) | |
002439e8 | 809 | usage_with_options(inject_usage, options); |
454c407e | 810 | |
f56fb986 AH |
811 | if (inject.strip && !inject.itrace_synth_opts.set) { |
812 | pr_err("--strip option requires --itrace option\n"); | |
813 | return -1; | |
814 | } | |
815 | ||
3406912c JO |
816 | if (perf_data_file__open(&inject.output)) { |
817 | perror("failed to create output file"); | |
818 | return -1; | |
e558a5bd AV |
819 | } |
820 | ||
b7b61cbe ACM |
821 | inject.tool.ordered_events = inject.sched_stat; |
822 | ||
1cb8bdcc NK |
823 | file.path = inject.input_name; |
824 | inject.session = perf_session__new(&file, true, &inject.tool); | |
825 | if (inject.session == NULL) | |
52e02834 | 826 | return -1; |
1cb8bdcc | 827 | |
921f3fad ACM |
828 | if (inject.build_ids) { |
829 | /* | |
830 | * to make sure the mmap records are ordered correctly | |
831 | * and so that the correct especially due to jitted code | |
832 | * mmaps. We cannot generate the buildid hit list and | |
833 | * inject the jit mmaps at the same time for now. | |
834 | */ | |
835 | inject.tool.ordered_events = true; | |
836 | inject.tool.ordering_requires_timestamps = true; | |
837 | } | |
e12b202f | 838 | #ifdef HAVE_JITDUMP |
9b07e27f | 839 | if (inject.jit_mode) { |
9b07e27f SE |
840 | inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
841 | inject.tool.mmap = perf_event__jit_repipe_mmap; | |
842 | inject.tool.ordered_events = true; | |
843 | inject.tool.ordering_requires_timestamps = true; | |
844 | /* | |
845 | * JIT MMAP injection injects all MMAP events in one go, so it | |
846 | * does not obey finished_round semantics. | |
847 | */ | |
848 | inject.tool.finished_round = perf_event__drop_oe; | |
849 | } | |
850 | #endif | |
9fedfb0c TS |
851 | ret = symbol__init(&inject.session->header.env); |
852 | if (ret < 0) | |
853 | goto out_delete; | |
454c407e | 854 | |
1cb8bdcc NK |
855 | ret = __cmd_inject(&inject); |
856 | ||
9fedfb0c | 857 | out_delete: |
1cb8bdcc | 858 | perf_session__delete(inject.session); |
1cb8bdcc | 859 | return ret; |
454c407e | 860 | } |