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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" |
e7ff8920 | 21 | #include "util/thread.h" |
454c407e | 22 | |
4b6ab94e | 23 | #include <subcmd/parse-options.h> |
454c407e | 24 | |
26a031e1 | 25 | #include <linux/list.h> |
a43783ae | 26 | #include <errno.h> |
9607ad3a | 27 | #include <signal.h> |
26a031e1 | 28 | |
5ded57ac | 29 | struct perf_inject { |
3406912c | 30 | struct perf_tool tool; |
1cb8bdcc | 31 | struct perf_session *session; |
3406912c JO |
32 | bool build_ids; |
33 | bool sched_stat; | |
cd10b289 | 34 | bool have_auxtrace; |
f56fb986 | 35 | bool strip; |
9b07e27f | 36 | bool jit_mode; |
3406912c JO |
37 | const char *input_name; |
38 | struct perf_data_file output; | |
39 | u64 bytes_written; | |
73117308 | 40 | u64 aux_id; |
3406912c | 41 | struct list_head samples; |
0f0aa5e0 | 42 | struct itrace_synth_opts itrace_synth_opts; |
26a031e1 AV |
43 | }; |
44 | ||
45 | struct event_entry { | |
46 | struct list_head node; | |
47 | u32 tid; | |
48 | union perf_event event[0]; | |
5ded57ac | 49 | }; |
454c407e | 50 | |
cd17a9b5 | 51 | static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) |
454c407e | 52 | { |
3406912c | 53 | ssize_t size; |
454c407e | 54 | |
cd17a9b5 | 55 | size = perf_data_file__write(&inject->output, buf, sz); |
3406912c JO |
56 | if (size < 0) |
57 | return -errno; | |
454c407e | 58 | |
3406912c | 59 | inject->bytes_written += size; |
454c407e TZ |
60 | return 0; |
61 | } | |
62 | ||
cd17a9b5 AH |
63 | static int perf_event__repipe_synth(struct perf_tool *tool, |
64 | union perf_event *event) | |
65 | { | |
66 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
67 | tool); | |
68 | ||
69 | return output_bytes(inject, event, event->header.size); | |
70 | } | |
71 | ||
d704ebda ACM |
72 | static int perf_event__repipe_oe_synth(struct perf_tool *tool, |
73 | union perf_event *event, | |
74 | struct ordered_events *oe __maybe_unused) | |
75 | { | |
76 | return perf_event__repipe_synth(tool, event); | |
77 | } | |
78 | ||
e12b202f | 79 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
80 | static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused, |
81 | union perf_event *event __maybe_unused, | |
82 | struct ordered_events *oe __maybe_unused) | |
83 | { | |
84 | return 0; | |
85 | } | |
86 | #endif | |
87 | ||
45694aa7 | 88 | static int perf_event__repipe_op2_synth(struct perf_tool *tool, |
743eb868 | 89 | union perf_event *event, |
1d037ca1 IT |
90 | struct perf_session *session |
91 | __maybe_unused) | |
743eb868 | 92 | { |
63c2c9f8 | 93 | return perf_event__repipe_synth(tool, event); |
743eb868 ACM |
94 | } |
95 | ||
47c3d109 AH |
96 | static int perf_event__repipe_attr(struct perf_tool *tool, |
97 | union perf_event *event, | |
98 | struct perf_evlist **pevlist) | |
10d0f086 | 99 | { |
89c97d93 AH |
100 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
101 | tool); | |
1a1ed1ba | 102 | int ret; |
47c3d109 AH |
103 | |
104 | ret = perf_event__process_attr(tool, event, pevlist); | |
1a1ed1ba SE |
105 | if (ret) |
106 | return ret; | |
107 | ||
a261e4a0 | 108 | if (!inject->output.is_pipe) |
89c97d93 AH |
109 | return 0; |
110 | ||
47c3d109 | 111 | return perf_event__repipe_synth(tool, event); |
10d0f086 ACM |
112 | } |
113 | ||
e31f0d01 AH |
114 | #ifdef HAVE_AUXTRACE_SUPPORT |
115 | ||
116 | static int copy_bytes(struct perf_inject *inject, int fd, off_t size) | |
117 | { | |
118 | char buf[4096]; | |
119 | ssize_t ssz; | |
120 | int ret; | |
121 | ||
122 | while (size > 0) { | |
123 | ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); | |
124 | if (ssz < 0) | |
125 | return -errno; | |
126 | ret = output_bytes(inject, buf, ssz); | |
127 | if (ret) | |
128 | return ret; | |
129 | size -= ssz; | |
130 | } | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
cd17a9b5 AH |
135 | static s64 perf_event__repipe_auxtrace(struct perf_tool *tool, |
136 | union perf_event *event, | |
b8f8eb84 | 137 | struct perf_session *session) |
cd17a9b5 AH |
138 | { |
139 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
140 | tool); | |
141 | int ret; | |
142 | ||
cd10b289 AH |
143 | inject->have_auxtrace = true; |
144 | ||
99fa2984 AH |
145 | if (!inject->output.is_pipe) { |
146 | off_t offset; | |
147 | ||
148 | offset = lseek(inject->output.fd, 0, SEEK_CUR); | |
149 | if (offset == -1) | |
150 | return -errno; | |
151 | ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, | |
152 | event, offset); | |
153 | if (ret < 0) | |
154 | return ret; | |
155 | } | |
156 | ||
cd17a9b5 AH |
157 | if (perf_data_file__is_pipe(session->file) || !session->one_mmap) { |
158 | ret = output_bytes(inject, event, event->header.size); | |
159 | if (ret < 0) | |
160 | return ret; | |
161 | ret = copy_bytes(inject, perf_data_file__fd(session->file), | |
162 | event->auxtrace.size); | |
163 | } else { | |
164 | ret = output_bytes(inject, event, | |
165 | event->header.size + event->auxtrace.size); | |
166 | } | |
167 | if (ret < 0) | |
168 | return ret; | |
169 | ||
170 | return event->auxtrace.size; | |
171 | } | |
172 | ||
e31f0d01 AH |
173 | #else |
174 | ||
175 | static s64 | |
176 | perf_event__repipe_auxtrace(struct perf_tool *tool __maybe_unused, | |
177 | union perf_event *event __maybe_unused, | |
178 | struct perf_session *session __maybe_unused) | |
179 | { | |
180 | pr_err("AUX area tracing not supported\n"); | |
181 | return -EINVAL; | |
182 | } | |
183 | ||
184 | #endif | |
185 | ||
45694aa7 | 186 | static int perf_event__repipe(struct perf_tool *tool, |
d20deb64 | 187 | union perf_event *event, |
1d037ca1 | 188 | struct perf_sample *sample __maybe_unused, |
63c2c9f8 | 189 | struct machine *machine __maybe_unused) |
640c03ce | 190 | { |
63c2c9f8 | 191 | return perf_event__repipe_synth(tool, event); |
640c03ce ACM |
192 | } |
193 | ||
f56fb986 AH |
194 | static int perf_event__drop(struct perf_tool *tool __maybe_unused, |
195 | union perf_event *event __maybe_unused, | |
196 | struct perf_sample *sample __maybe_unused, | |
197 | struct machine *machine __maybe_unused) | |
198 | { | |
199 | return 0; | |
200 | } | |
201 | ||
73117308 AH |
202 | static int perf_event__drop_aux(struct perf_tool *tool, |
203 | union perf_event *event __maybe_unused, | |
204 | struct perf_sample *sample, | |
205 | struct machine *machine __maybe_unused) | |
206 | { | |
207 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
208 | ||
209 | if (!inject->aux_id) | |
210 | inject->aux_id = sample->id; | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
26a031e1 AV |
215 | typedef int (*inject_handler)(struct perf_tool *tool, |
216 | union perf_event *event, | |
217 | struct perf_sample *sample, | |
218 | struct perf_evsel *evsel, | |
219 | struct machine *machine); | |
220 | ||
45694aa7 | 221 | static int perf_event__repipe_sample(struct perf_tool *tool, |
d20deb64 | 222 | union perf_event *event, |
26a031e1 AV |
223 | struct perf_sample *sample, |
224 | struct perf_evsel *evsel, | |
225 | struct machine *machine) | |
9e69c210 | 226 | { |
744a9719 ACM |
227 | if (evsel->handler) { |
228 | inject_handler f = evsel->handler; | |
26a031e1 AV |
229 | return f(tool, event, sample, evsel, machine); |
230 | } | |
231 | ||
54a3cf59 AV |
232 | build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
233 | ||
63c2c9f8 | 234 | return perf_event__repipe_synth(tool, event); |
9e69c210 ACM |
235 | } |
236 | ||
45694aa7 | 237 | static int perf_event__repipe_mmap(struct perf_tool *tool, |
d20deb64 | 238 | union perf_event *event, |
8115d60c | 239 | struct perf_sample *sample, |
743eb868 | 240 | struct machine *machine) |
454c407e TZ |
241 | { |
242 | int err; | |
243 | ||
45694aa7 ACM |
244 | err = perf_event__process_mmap(tool, event, sample, machine); |
245 | perf_event__repipe(tool, event, sample, machine); | |
454c407e TZ |
246 | |
247 | return err; | |
248 | } | |
249 | ||
e12b202f | 250 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
251 | static int perf_event__jit_repipe_mmap(struct perf_tool *tool, |
252 | union perf_event *event, | |
253 | struct perf_sample *sample, | |
254 | struct machine *machine) | |
255 | { | |
256 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
257 | u64 n = 0; | |
570735b3 | 258 | int ret; |
9b07e27f SE |
259 | |
260 | /* | |
261 | * if jit marker, then inject jit mmaps and generate ELF images | |
262 | */ | |
570735b3 AH |
263 | ret = jit_process(inject->session, &inject->output, machine, |
264 | event->mmap.filename, sample->pid, &n); | |
265 | if (ret < 0) | |
266 | return ret; | |
267 | if (ret) { | |
9b07e27f SE |
268 | inject->bytes_written += n; |
269 | return 0; | |
270 | } | |
271 | return perf_event__repipe_mmap(tool, event, sample, machine); | |
272 | } | |
273 | #endif | |
274 | ||
5c5e854b SE |
275 | static int perf_event__repipe_mmap2(struct perf_tool *tool, |
276 | union perf_event *event, | |
277 | struct perf_sample *sample, | |
278 | struct machine *machine) | |
279 | { | |
280 | int err; | |
281 | ||
282 | err = perf_event__process_mmap2(tool, event, sample, machine); | |
283 | perf_event__repipe(tool, event, sample, machine); | |
284 | ||
285 | return err; | |
286 | } | |
287 | ||
e12b202f | 288 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
289 | static int perf_event__jit_repipe_mmap2(struct perf_tool *tool, |
290 | union perf_event *event, | |
291 | struct perf_sample *sample, | |
292 | struct machine *machine) | |
293 | { | |
294 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
295 | u64 n = 0; | |
570735b3 | 296 | int ret; |
9b07e27f SE |
297 | |
298 | /* | |
299 | * if jit marker, then inject jit mmaps and generate ELF images | |
300 | */ | |
570735b3 AH |
301 | ret = jit_process(inject->session, &inject->output, machine, |
302 | event->mmap2.filename, sample->pid, &n); | |
303 | if (ret < 0) | |
304 | return ret; | |
305 | if (ret) { | |
9b07e27f SE |
306 | inject->bytes_written += n; |
307 | return 0; | |
308 | } | |
309 | return perf_event__repipe_mmap2(tool, event, sample, machine); | |
310 | } | |
311 | #endif | |
312 | ||
f62d3f0f | 313 | static int perf_event__repipe_fork(struct perf_tool *tool, |
d20deb64 | 314 | union perf_event *event, |
8115d60c | 315 | struct perf_sample *sample, |
743eb868 | 316 | struct machine *machine) |
454c407e TZ |
317 | { |
318 | int err; | |
319 | ||
f62d3f0f | 320 | err = perf_event__process_fork(tool, event, sample, machine); |
45694aa7 | 321 | perf_event__repipe(tool, event, sample, machine); |
454c407e TZ |
322 | |
323 | return err; | |
324 | } | |
325 | ||
0f0aa5e0 AH |
326 | static int perf_event__repipe_comm(struct perf_tool *tool, |
327 | union perf_event *event, | |
328 | struct perf_sample *sample, | |
329 | struct machine *machine) | |
330 | { | |
331 | int err; | |
332 | ||
333 | err = perf_event__process_comm(tool, event, sample, machine); | |
334 | perf_event__repipe(tool, event, sample, machine); | |
335 | ||
336 | return err; | |
337 | } | |
338 | ||
f3b3614a HB |
339 | static int perf_event__repipe_namespaces(struct perf_tool *tool, |
340 | union perf_event *event, | |
341 | struct perf_sample *sample, | |
342 | struct machine *machine) | |
343 | { | |
344 | int err = perf_event__process_namespaces(tool, event, sample, machine); | |
345 | ||
346 | perf_event__repipe(tool, event, sample, machine); | |
347 | ||
348 | return err; | |
349 | } | |
350 | ||
0f0aa5e0 AH |
351 | static int perf_event__repipe_exit(struct perf_tool *tool, |
352 | union perf_event *event, | |
353 | struct perf_sample *sample, | |
354 | struct machine *machine) | |
355 | { | |
356 | int err; | |
357 | ||
358 | err = perf_event__process_exit(tool, event, sample, machine); | |
359 | perf_event__repipe(tool, event, sample, machine); | |
360 | ||
361 | return err; | |
362 | } | |
363 | ||
47c3d109 AH |
364 | static int perf_event__repipe_tracing_data(struct perf_tool *tool, |
365 | union perf_event *event, | |
8115d60c | 366 | struct perf_session *session) |
454c407e TZ |
367 | { |
368 | int err; | |
369 | ||
47c3d109 AH |
370 | perf_event__repipe_synth(tool, event); |
371 | err = perf_event__process_tracing_data(tool, event, session); | |
454c407e TZ |
372 | |
373 | return err; | |
374 | } | |
375 | ||
0f0aa5e0 AH |
376 | static int perf_event__repipe_id_index(struct perf_tool *tool, |
377 | union perf_event *event, | |
378 | struct perf_session *session) | |
379 | { | |
380 | int err; | |
381 | ||
382 | perf_event__repipe_synth(tool, event); | |
383 | err = perf_event__process_id_index(tool, event, session); | |
384 | ||
385 | return err; | |
386 | } | |
387 | ||
c824c433 | 388 | static int dso__read_build_id(struct dso *dso) |
454c407e | 389 | { |
c824c433 | 390 | if (dso->has_build_id) |
090f7204 | 391 | return 0; |
454c407e | 392 | |
c824c433 ACM |
393 | if (filename__read_build_id(dso->long_name, dso->build_id, |
394 | sizeof(dso->build_id)) > 0) { | |
395 | dso->has_build_id = true; | |
090f7204 ACM |
396 | return 0; |
397 | } | |
454c407e | 398 | |
090f7204 ACM |
399 | return -1; |
400 | } | |
454c407e | 401 | |
c824c433 | 402 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
743eb868 | 403 | struct machine *machine) |
090f7204 ACM |
404 | { |
405 | u16 misc = PERF_RECORD_MISC_USER; | |
090f7204 | 406 | int err; |
454c407e | 407 | |
c824c433 ACM |
408 | if (dso__read_build_id(dso) < 0) { |
409 | pr_debug("no build_id found for %s\n", dso->long_name); | |
090f7204 ACM |
410 | return -1; |
411 | } | |
454c407e | 412 | |
c824c433 | 413 | if (dso->kernel) |
090f7204 | 414 | misc = PERF_RECORD_MISC_KERNEL; |
454c407e | 415 | |
c824c433 | 416 | err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe, |
743eb868 | 417 | machine); |
090f7204 | 418 | if (err) { |
c824c433 | 419 | pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
454c407e TZ |
420 | return -1; |
421 | } | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
45694aa7 | 426 | static int perf_event__inject_buildid(struct perf_tool *tool, |
d20deb64 | 427 | union perf_event *event, |
8115d60c | 428 | struct perf_sample *sample, |
1d037ca1 | 429 | struct perf_evsel *evsel __maybe_unused, |
743eb868 | 430 | struct machine *machine) |
454c407e TZ |
431 | { |
432 | struct addr_location al; | |
433 | struct thread *thread; | |
454c407e | 434 | |
13ce34df | 435 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
454c407e TZ |
436 | if (thread == NULL) { |
437 | pr_err("problem processing %d event, skipping it.\n", | |
438 | event->header.type); | |
454c407e TZ |
439 | goto repipe; |
440 | } | |
441 | ||
473398a2 | 442 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al); |
454c407e TZ |
443 | |
444 | if (al.map != NULL) { | |
445 | if (!al.map->dso->hit) { | |
446 | al.map->dso->hit = 1; | |
be39db9f | 447 | if (map__load(al.map) >= 0) { |
45694aa7 | 448 | dso__inject_build_id(al.map->dso, tool, machine); |
090f7204 ACM |
449 | /* |
450 | * If this fails, too bad, let the other side | |
451 | * account this as unresolved. | |
452 | */ | |
393be2e3 | 453 | } else { |
89fe808a | 454 | #ifdef HAVE_LIBELF_SUPPORT |
454c407e TZ |
455 | pr_warning("no symbols found in %s, maybe " |
456 | "install a debug package?\n", | |
457 | al.map->dso->long_name); | |
393be2e3 NK |
458 | #endif |
459 | } | |
454c407e TZ |
460 | } |
461 | } | |
462 | ||
b91fc39f | 463 | thread__put(thread); |
454c407e | 464 | repipe: |
45694aa7 | 465 | perf_event__repipe(tool, event, sample, machine); |
090f7204 | 466 | return 0; |
454c407e TZ |
467 | } |
468 | ||
26a031e1 AV |
469 | static int perf_inject__sched_process_exit(struct perf_tool *tool, |
470 | union perf_event *event __maybe_unused, | |
471 | struct perf_sample *sample, | |
472 | struct perf_evsel *evsel __maybe_unused, | |
473 | struct machine *machine __maybe_unused) | |
474 | { | |
475 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
476 | struct event_entry *ent; | |
477 | ||
478 | list_for_each_entry(ent, &inject->samples, node) { | |
479 | if (sample->tid == ent->tid) { | |
480 | list_del_init(&ent->node); | |
481 | free(ent); | |
482 | break; | |
483 | } | |
484 | } | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
489 | static int perf_inject__sched_switch(struct perf_tool *tool, | |
490 | union perf_event *event, | |
491 | struct perf_sample *sample, | |
492 | struct perf_evsel *evsel, | |
493 | struct machine *machine) | |
494 | { | |
495 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
496 | struct event_entry *ent; | |
497 | ||
498 | perf_inject__sched_process_exit(tool, event, sample, evsel, machine); | |
499 | ||
500 | ent = malloc(event->header.size + sizeof(struct event_entry)); | |
501 | if (ent == NULL) { | |
502 | color_fprintf(stderr, PERF_COLOR_RED, | |
503 | "Not enough memory to process sched switch event!"); | |
504 | return -1; | |
505 | } | |
506 | ||
507 | ent->tid = sample->tid; | |
508 | memcpy(&ent->event, event, event->header.size); | |
509 | list_add(&ent->node, &inject->samples); | |
510 | return 0; | |
511 | } | |
512 | ||
513 | static int perf_inject__sched_stat(struct perf_tool *tool, | |
514 | union perf_event *event __maybe_unused, | |
515 | struct perf_sample *sample, | |
516 | struct perf_evsel *evsel, | |
517 | struct machine *machine) | |
518 | { | |
519 | struct event_entry *ent; | |
520 | union perf_event *event_sw; | |
521 | struct perf_sample sample_sw; | |
522 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
523 | u32 pid = perf_evsel__intval(evsel, sample, "pid"); | |
524 | ||
525 | list_for_each_entry(ent, &inject->samples, node) { | |
526 | if (pid == ent->tid) | |
527 | goto found; | |
528 | } | |
529 | ||
530 | return 0; | |
531 | found: | |
532 | event_sw = &ent->event[0]; | |
533 | perf_evsel__parse_sample(evsel, event_sw, &sample_sw); | |
534 | ||
535 | sample_sw.period = sample->period; | |
536 | sample_sw.time = sample->time; | |
537 | perf_event__synthesize_sample(event_sw, evsel->attr.sample_type, | |
d03f2170 AH |
538 | evsel->attr.read_format, &sample_sw, |
539 | false); | |
54a3cf59 | 540 | build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
26a031e1 AV |
541 | return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
542 | } | |
543 | ||
1d037ca1 | 544 | static void sig_handler(int sig __maybe_unused) |
454c407e TZ |
545 | { |
546 | session_done = 1; | |
547 | } | |
548 | ||
26a031e1 AV |
549 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
550 | u64 sample_type, const char *sample_msg) | |
551 | { | |
552 | struct perf_event_attr *attr = &evsel->attr; | |
553 | const char *name = perf_evsel__name(evsel); | |
554 | ||
555 | if (!(attr->sample_type & sample_type)) { | |
556 | pr_err("Samples for %s event do not have %s attribute set.", | |
557 | name, sample_msg); | |
558 | return -EINVAL; | |
559 | } | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
f56fb986 AH |
564 | static int drop_sample(struct perf_tool *tool __maybe_unused, |
565 | union perf_event *event __maybe_unused, | |
566 | struct perf_sample *sample __maybe_unused, | |
567 | struct perf_evsel *evsel __maybe_unused, | |
568 | struct machine *machine __maybe_unused) | |
569 | { | |
570 | return 0; | |
571 | } | |
572 | ||
573 | static void strip_init(struct perf_inject *inject) | |
574 | { | |
575 | struct perf_evlist *evlist = inject->session->evlist; | |
576 | struct perf_evsel *evsel; | |
577 | ||
578 | inject->tool.context_switch = perf_event__drop; | |
579 | ||
e5cadb93 | 580 | evlist__for_each_entry(evlist, evsel) |
f56fb986 AH |
581 | evsel->handler = drop_sample; |
582 | } | |
583 | ||
584 | static bool has_tracking(struct perf_evsel *evsel) | |
585 | { | |
586 | return evsel->attr.mmap || evsel->attr.mmap2 || evsel->attr.comm || | |
587 | evsel->attr.task; | |
588 | } | |
589 | ||
590 | #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \ | |
591 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER) | |
592 | ||
593 | /* | |
594 | * In order that the perf.data file is parsable, tracking events like MMAP need | |
595 | * their selected event to exist, except if there is only 1 selected event left | |
596 | * and it has a compatible sample type. | |
597 | */ | |
598 | static bool ok_to_remove(struct perf_evlist *evlist, | |
599 | struct perf_evsel *evsel_to_remove) | |
600 | { | |
601 | struct perf_evsel *evsel; | |
602 | int cnt = 0; | |
603 | bool ok = false; | |
604 | ||
605 | if (!has_tracking(evsel_to_remove)) | |
606 | return true; | |
607 | ||
e5cadb93 | 608 | evlist__for_each_entry(evlist, evsel) { |
f56fb986 AH |
609 | if (evsel->handler != drop_sample) { |
610 | cnt += 1; | |
611 | if ((evsel->attr.sample_type & COMPAT_MASK) == | |
612 | (evsel_to_remove->attr.sample_type & COMPAT_MASK)) | |
613 | ok = true; | |
614 | } | |
615 | } | |
616 | ||
617 | return ok && cnt == 1; | |
618 | } | |
619 | ||
620 | static void strip_fini(struct perf_inject *inject) | |
621 | { | |
622 | struct perf_evlist *evlist = inject->session->evlist; | |
623 | struct perf_evsel *evsel, *tmp; | |
624 | ||
625 | /* Remove non-synthesized evsels if possible */ | |
e5cadb93 | 626 | evlist__for_each_entry_safe(evlist, tmp, evsel) { |
f56fb986 AH |
627 | if (evsel->handler == drop_sample && |
628 | ok_to_remove(evlist, evsel)) { | |
629 | pr_debug("Deleting %s\n", perf_evsel__name(evsel)); | |
630 | perf_evlist__remove(evlist, evsel); | |
631 | perf_evsel__delete(evsel); | |
632 | } | |
633 | } | |
634 | } | |
635 | ||
5ded57ac | 636 | static int __cmd_inject(struct perf_inject *inject) |
454c407e | 637 | { |
454c407e | 638 | int ret = -EINVAL; |
1cb8bdcc | 639 | struct perf_session *session = inject->session; |
3406912c | 640 | struct perf_data_file *file_out = &inject->output; |
42aa276f | 641 | int fd = perf_data_file__fd(file_out); |
0f0aa5e0 | 642 | u64 output_data_offset; |
454c407e TZ |
643 | |
644 | signal(SIGINT, sig_handler); | |
645 | ||
0f0aa5e0 AH |
646 | if (inject->build_ids || inject->sched_stat || |
647 | inject->itrace_synth_opts.set) { | |
5ded57ac | 648 | inject->tool.mmap = perf_event__repipe_mmap; |
5c5e854b | 649 | inject->tool.mmap2 = perf_event__repipe_mmap2; |
f62d3f0f | 650 | inject->tool.fork = perf_event__repipe_fork; |
5ded57ac | 651 | inject->tool.tracing_data = perf_event__repipe_tracing_data; |
454c407e TZ |
652 | } |
653 | ||
0f0aa5e0 AH |
654 | output_data_offset = session->header.data_offset; |
655 | ||
54a3cf59 AV |
656 | if (inject->build_ids) { |
657 | inject->tool.sample = perf_event__inject_buildid; | |
658 | } else if (inject->sched_stat) { | |
26a031e1 AV |
659 | struct perf_evsel *evsel; |
660 | ||
e5cadb93 | 661 | evlist__for_each_entry(session->evlist, evsel) { |
26a031e1 AV |
662 | const char *name = perf_evsel__name(evsel); |
663 | ||
664 | if (!strcmp(name, "sched:sched_switch")) { | |
665 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) | |
666 | return -EINVAL; | |
667 | ||
744a9719 | 668 | evsel->handler = perf_inject__sched_switch; |
26a031e1 | 669 | } else if (!strcmp(name, "sched:sched_process_exit")) |
744a9719 | 670 | evsel->handler = perf_inject__sched_process_exit; |
26a031e1 | 671 | else if (!strncmp(name, "sched:sched_stat_", 17)) |
744a9719 | 672 | evsel->handler = perf_inject__sched_stat; |
26a031e1 | 673 | } |
0f0aa5e0 AH |
674 | } else if (inject->itrace_synth_opts.set) { |
675 | session->itrace_synth_opts = &inject->itrace_synth_opts; | |
676 | inject->itrace_synth_opts.inject = true; | |
677 | inject->tool.comm = perf_event__repipe_comm; | |
f3b3614a | 678 | inject->tool.namespaces = perf_event__repipe_namespaces; |
0f0aa5e0 AH |
679 | inject->tool.exit = perf_event__repipe_exit; |
680 | inject->tool.id_index = perf_event__repipe_id_index; | |
681 | inject->tool.auxtrace_info = perf_event__process_auxtrace_info; | |
682 | inject->tool.auxtrace = perf_event__process_auxtrace; | |
73117308 AH |
683 | inject->tool.aux = perf_event__drop_aux; |
684 | inject->tool.itrace_start = perf_event__drop_aux, | |
0f0aa5e0 AH |
685 | inject->tool.ordered_events = true; |
686 | inject->tool.ordering_requires_timestamps = true; | |
687 | /* Allow space in the header for new attributes */ | |
688 | output_data_offset = 4096; | |
f56fb986 AH |
689 | if (inject->strip) |
690 | strip_init(inject); | |
26a031e1 AV |
691 | } |
692 | ||
99fa2984 AH |
693 | if (!inject->itrace_synth_opts.set) |
694 | auxtrace_index__free(&session->auxtrace_index); | |
695 | ||
3406912c | 696 | if (!file_out->is_pipe) |
0f0aa5e0 | 697 | lseek(fd, output_data_offset, SEEK_SET); |
e558a5bd | 698 | |
b7b61cbe | 699 | ret = perf_session__process_events(session); |
bb8d521f DCC |
700 | if (ret) |
701 | return ret; | |
454c407e | 702 | |
3406912c | 703 | if (!file_out->is_pipe) { |
640dad47 | 704 | if (inject->build_ids) |
e38b43c3 AH |
705 | perf_header__set_feat(&session->header, |
706 | HEADER_BUILD_ID); | |
640dad47 AH |
707 | /* |
708 | * Keep all buildids when there is unprocessed AUX data because | |
709 | * it is not known which ones the AUX trace hits. | |
710 | */ | |
711 | if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && | |
712 | inject->have_auxtrace && !inject->itrace_synth_opts.set) | |
713 | dsos__hit_all(session); | |
0f0aa5e0 AH |
714 | /* |
715 | * The AUX areas have been removed and replaced with | |
73117308 AH |
716 | * synthesized hardware events, so clear the feature flag and |
717 | * remove the evsel. | |
0f0aa5e0 | 718 | */ |
051a01b9 | 719 | if (inject->itrace_synth_opts.set) { |
73117308 AH |
720 | struct perf_evsel *evsel; |
721 | ||
0f0aa5e0 AH |
722 | perf_header__clear_feat(&session->header, |
723 | HEADER_AUXTRACE); | |
051a01b9 AH |
724 | if (inject->itrace_synth_opts.last_branch) |
725 | perf_header__set_feat(&session->header, | |
726 | HEADER_BRANCH_STACK); | |
73117308 AH |
727 | evsel = perf_evlist__id2evsel_strict(session->evlist, |
728 | inject->aux_id); | |
729 | if (evsel) { | |
730 | pr_debug("Deleting %s\n", | |
731 | perf_evsel__name(evsel)); | |
732 | perf_evlist__remove(session->evlist, evsel); | |
733 | perf_evsel__delete(evsel); | |
734 | } | |
f56fb986 AH |
735 | if (inject->strip) |
736 | strip_fini(inject); | |
051a01b9 | 737 | } |
0f0aa5e0 | 738 | session->header.data_offset = output_data_offset; |
e558a5bd | 739 | session->header.data_size = inject->bytes_written; |
42aa276f | 740 | perf_session__write_header(session, session->evlist, fd, true); |
e558a5bd AV |
741 | } |
742 | ||
454c407e TZ |
743 | return ret; |
744 | } | |
745 | ||
b0ad8ea6 | 746 | int cmd_inject(int argc, const char **argv) |
454c407e | 747 | { |
5ded57ac ACM |
748 | struct perf_inject inject = { |
749 | .tool = { | |
750 | .sample = perf_event__repipe_sample, | |
751 | .mmap = perf_event__repipe, | |
5c5e854b | 752 | .mmap2 = perf_event__repipe, |
5ded57ac ACM |
753 | .comm = perf_event__repipe, |
754 | .fork = perf_event__repipe, | |
755 | .exit = perf_event__repipe, | |
756 | .lost = perf_event__repipe, | |
d8145b3e | 757 | .lost_samples = perf_event__repipe, |
4a96f7a0 | 758 | .aux = perf_event__repipe, |
0ad21f68 | 759 | .itrace_start = perf_event__repipe, |
0286039f | 760 | .context_switch = perf_event__repipe, |
5ded57ac ACM |
761 | .read = perf_event__repipe_sample, |
762 | .throttle = perf_event__repipe, | |
763 | .unthrottle = perf_event__repipe, | |
764 | .attr = perf_event__repipe_attr, | |
47c3d109 | 765 | .tracing_data = perf_event__repipe_op2_synth, |
cd17a9b5 AH |
766 | .auxtrace_info = perf_event__repipe_op2_synth, |
767 | .auxtrace = perf_event__repipe_auxtrace, | |
768 | .auxtrace_error = perf_event__repipe_op2_synth, | |
46bc29b9 | 769 | .time_conv = perf_event__repipe_op2_synth, |
d704ebda | 770 | .finished_round = perf_event__repipe_oe_synth, |
5ded57ac | 771 | .build_id = perf_event__repipe_op2_synth, |
3c659eed | 772 | .id_index = perf_event__repipe_op2_synth, |
5ded57ac | 773 | }, |
e558a5bd | 774 | .input_name = "-", |
26a031e1 | 775 | .samples = LIST_HEAD_INIT(inject.samples), |
3406912c JO |
776 | .output = { |
777 | .path = "-", | |
778 | .mode = PERF_DATA_MODE_WRITE, | |
779 | }, | |
5ded57ac | 780 | }; |
1cb8bdcc NK |
781 | struct perf_data_file file = { |
782 | .mode = PERF_DATA_MODE_READ, | |
783 | }; | |
784 | int ret; | |
785 | ||
9b07e27f | 786 | struct option options[] = { |
5ded57ac ACM |
787 | OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
788 | "Inject build-ids into the output stream"), | |
e558a5bd AV |
789 | OPT_STRING('i', "input", &inject.input_name, "file", |
790 | "input file name"), | |
3406912c | 791 | OPT_STRING('o', "output", &inject.output.path, "file", |
e558a5bd | 792 | "output file name"), |
26a031e1 AV |
793 | OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
794 | "Merge sched-stat and sched-switch for getting events " | |
795 | "where and how long tasks slept"), | |
e12b202f | 796 | #ifdef HAVE_JITDUMP |
9b07e27f | 797 | OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
e12b202f | 798 | #endif |
5ded57ac ACM |
799 | OPT_INCR('v', "verbose", &verbose, |
800 | "be more verbose (show build ids, etc)"), | |
a7a2b8b4 AH |
801 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
802 | "kallsyms pathname"), | |
ccaa474c | 803 | OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), |
0f0aa5e0 AH |
804 | OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
805 | NULL, "opts", "Instruction Tracing options", | |
806 | itrace_parse_synth_opts), | |
f56fb986 AH |
807 | OPT_BOOLEAN(0, "strip", &inject.strip, |
808 | "strip non-synthesized events (use with --itrace)"), | |
5ded57ac ACM |
809 | OPT_END() |
810 | }; | |
002439e8 ACM |
811 | const char * const inject_usage[] = { |
812 | "perf inject [<options>]", | |
813 | NULL | |
814 | }; | |
e12b202f | 815 | #ifndef HAVE_JITDUMP |
9b07e27f SE |
816 | set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
817 | #endif | |
002439e8 | 818 | argc = parse_options(argc, argv, options, inject_usage, 0); |
454c407e TZ |
819 | |
820 | /* | |
821 | * Any (unrecognized) arguments left? | |
822 | */ | |
823 | if (argc) | |
002439e8 | 824 | usage_with_options(inject_usage, options); |
454c407e | 825 | |
f56fb986 AH |
826 | if (inject.strip && !inject.itrace_synth_opts.set) { |
827 | pr_err("--strip option requires --itrace option\n"); | |
828 | return -1; | |
829 | } | |
830 | ||
3406912c JO |
831 | if (perf_data_file__open(&inject.output)) { |
832 | perror("failed to create output file"); | |
833 | return -1; | |
e558a5bd AV |
834 | } |
835 | ||
b7b61cbe ACM |
836 | inject.tool.ordered_events = inject.sched_stat; |
837 | ||
1cb8bdcc NK |
838 | file.path = inject.input_name; |
839 | inject.session = perf_session__new(&file, true, &inject.tool); | |
840 | if (inject.session == NULL) | |
52e02834 | 841 | return -1; |
1cb8bdcc | 842 | |
921f3fad ACM |
843 | if (inject.build_ids) { |
844 | /* | |
845 | * to make sure the mmap records are ordered correctly | |
846 | * and so that the correct especially due to jitted code | |
847 | * mmaps. We cannot generate the buildid hit list and | |
848 | * inject the jit mmaps at the same time for now. | |
849 | */ | |
850 | inject.tool.ordered_events = true; | |
851 | inject.tool.ordering_requires_timestamps = true; | |
852 | } | |
e12b202f | 853 | #ifdef HAVE_JITDUMP |
9b07e27f | 854 | if (inject.jit_mode) { |
9b07e27f SE |
855 | inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
856 | inject.tool.mmap = perf_event__jit_repipe_mmap; | |
857 | inject.tool.ordered_events = true; | |
858 | inject.tool.ordering_requires_timestamps = true; | |
859 | /* | |
860 | * JIT MMAP injection injects all MMAP events in one go, so it | |
861 | * does not obey finished_round semantics. | |
862 | */ | |
863 | inject.tool.finished_round = perf_event__drop_oe; | |
864 | } | |
865 | #endif | |
9fedfb0c TS |
866 | ret = symbol__init(&inject.session->header.env); |
867 | if (ret < 0) | |
868 | goto out_delete; | |
454c407e | 869 | |
1cb8bdcc NK |
870 | ret = __cmd_inject(&inject); |
871 | ||
9fedfb0c | 872 | out_delete: |
1cb8bdcc | 873 | perf_session__delete(inject.session); |
1cb8bdcc | 874 | return ret; |
454c407e | 875 | } |