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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
454c407e TZ |
2 | /* |
3 | * builtin-inject.c | |
4 | * | |
5 | * Builtin inject command: Examine the live mode (stdin) event stream | |
6 | * and repipe it to stdout while optionally injecting additional | |
7 | * events into it. | |
8 | */ | |
9 | #include "builtin.h" | |
10 | ||
11 | #include "perf.h" | |
26a031e1 AV |
12 | #include "util/color.h" |
13 | #include "util/evlist.h" | |
14 | #include "util/evsel.h" | |
454c407e | 15 | #include "util/session.h" |
45694aa7 | 16 | #include "util/tool.h" |
454c407e | 17 | #include "util/debug.h" |
54a3cf59 | 18 | #include "util/build-id.h" |
f5fc1412 | 19 | #include "util/data.h" |
0f0aa5e0 | 20 | #include "util/auxtrace.h" |
9b07e27f | 21 | #include "util/jit.h" |
e7ff8920 | 22 | #include "util/thread.h" |
454c407e | 23 | |
4b6ab94e | 24 | #include <subcmd/parse-options.h> |
454c407e | 25 | |
26a031e1 | 26 | #include <linux/list.h> |
a43783ae | 27 | #include <errno.h> |
9607ad3a | 28 | #include <signal.h> |
26a031e1 | 29 | |
5ded57ac | 30 | struct perf_inject { |
3406912c | 31 | struct perf_tool tool; |
1cb8bdcc | 32 | struct perf_session *session; |
3406912c JO |
33 | bool build_ids; |
34 | bool sched_stat; | |
cd10b289 | 35 | bool have_auxtrace; |
f56fb986 | 36 | bool strip; |
9b07e27f | 37 | bool jit_mode; |
3406912c | 38 | const char *input_name; |
8ceb41d7 | 39 | struct perf_data output; |
3406912c | 40 | u64 bytes_written; |
73117308 | 41 | u64 aux_id; |
3406912c | 42 | struct list_head samples; |
0f0aa5e0 | 43 | struct itrace_synth_opts itrace_synth_opts; |
26a031e1 AV |
44 | }; |
45 | ||
46 | struct event_entry { | |
47 | struct list_head node; | |
48 | u32 tid; | |
49 | union perf_event event[0]; | |
5ded57ac | 50 | }; |
454c407e | 51 | |
cd17a9b5 | 52 | static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) |
454c407e | 53 | { |
3406912c | 54 | ssize_t size; |
454c407e | 55 | |
8ceb41d7 | 56 | size = perf_data__write(&inject->output, buf, sz); |
3406912c JO |
57 | if (size < 0) |
58 | return -errno; | |
454c407e | 59 | |
3406912c | 60 | inject->bytes_written += size; |
454c407e TZ |
61 | return 0; |
62 | } | |
63 | ||
cd17a9b5 AH |
64 | static int perf_event__repipe_synth(struct perf_tool *tool, |
65 | union perf_event *event) | |
66 | { | |
67 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
68 | tool); | |
69 | ||
70 | return output_bytes(inject, event, event->header.size); | |
71 | } | |
72 | ||
d704ebda ACM |
73 | static int perf_event__repipe_oe_synth(struct perf_tool *tool, |
74 | union perf_event *event, | |
75 | struct ordered_events *oe __maybe_unused) | |
76 | { | |
77 | return perf_event__repipe_synth(tool, event); | |
78 | } | |
79 | ||
e12b202f | 80 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
81 | static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused, |
82 | union perf_event *event __maybe_unused, | |
83 | struct ordered_events *oe __maybe_unused) | |
84 | { | |
85 | return 0; | |
86 | } | |
87 | #endif | |
88 | ||
89f1688a JO |
89 | static int perf_event__repipe_op2_synth(struct perf_session *session, |
90 | union perf_event *event) | |
743eb868 | 91 | { |
89f1688a | 92 | return perf_event__repipe_synth(session->tool, event); |
743eb868 ACM |
93 | } |
94 | ||
47c3d109 AH |
95 | static int perf_event__repipe_attr(struct perf_tool *tool, |
96 | union perf_event *event, | |
97 | struct perf_evlist **pevlist) | |
10d0f086 | 98 | { |
89c97d93 AH |
99 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
100 | tool); | |
1a1ed1ba | 101 | int ret; |
47c3d109 AH |
102 | |
103 | ret = perf_event__process_attr(tool, event, pevlist); | |
1a1ed1ba SE |
104 | if (ret) |
105 | return ret; | |
106 | ||
a261e4a0 | 107 | if (!inject->output.is_pipe) |
89c97d93 AH |
108 | return 0; |
109 | ||
47c3d109 | 110 | return perf_event__repipe_synth(tool, event); |
10d0f086 ACM |
111 | } |
112 | ||
e31f0d01 AH |
113 | #ifdef HAVE_AUXTRACE_SUPPORT |
114 | ||
115 | static int copy_bytes(struct perf_inject *inject, int fd, off_t size) | |
116 | { | |
117 | char buf[4096]; | |
118 | ssize_t ssz; | |
119 | int ret; | |
120 | ||
121 | while (size > 0) { | |
122 | ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); | |
123 | if (ssz < 0) | |
124 | return -errno; | |
125 | ret = output_bytes(inject, buf, ssz); | |
126 | if (ret) | |
127 | return ret; | |
128 | size -= ssz; | |
129 | } | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
7336555a JO |
134 | static s64 perf_event__repipe_auxtrace(struct perf_session *session, |
135 | union perf_event *event) | |
cd17a9b5 | 136 | { |
7336555a | 137 | struct perf_tool *tool = session->tool; |
cd17a9b5 AH |
138 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
139 | tool); | |
140 | int ret; | |
141 | ||
cd10b289 AH |
142 | inject->have_auxtrace = true; |
143 | ||
99fa2984 AH |
144 | if (!inject->output.is_pipe) { |
145 | off_t offset; | |
146 | ||
eae8ad80 | 147 | offset = lseek(inject->output.file.fd, 0, SEEK_CUR); |
99fa2984 AH |
148 | if (offset == -1) |
149 | return -errno; | |
150 | ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, | |
151 | event, offset); | |
152 | if (ret < 0) | |
153 | return ret; | |
154 | } | |
155 | ||
8ceb41d7 | 156 | if (perf_data__is_pipe(session->data) || !session->one_mmap) { |
cd17a9b5 AH |
157 | ret = output_bytes(inject, event, event->header.size); |
158 | if (ret < 0) | |
159 | return ret; | |
8ceb41d7 | 160 | ret = copy_bytes(inject, perf_data__fd(session->data), |
cd17a9b5 AH |
161 | event->auxtrace.size); |
162 | } else { | |
163 | ret = output_bytes(inject, event, | |
164 | event->header.size + event->auxtrace.size); | |
165 | } | |
166 | if (ret < 0) | |
167 | return ret; | |
168 | ||
169 | return event->auxtrace.size; | |
170 | } | |
171 | ||
e31f0d01 AH |
172 | #else |
173 | ||
174 | static s64 | |
7336555a JO |
175 | perf_event__repipe_auxtrace(struct perf_session *session __maybe_unused, |
176 | union perf_event *event __maybe_unused) | |
e31f0d01 AH |
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 | ||
f3b3614a HB |
337 | static int perf_event__repipe_namespaces(struct perf_tool *tool, |
338 | union perf_event *event, | |
339 | struct perf_sample *sample, | |
340 | struct machine *machine) | |
341 | { | |
342 | int err = perf_event__process_namespaces(tool, event, sample, machine); | |
343 | ||
344 | perf_event__repipe(tool, event, sample, machine); | |
345 | ||
346 | return err; | |
347 | } | |
348 | ||
0f0aa5e0 AH |
349 | static int perf_event__repipe_exit(struct perf_tool *tool, |
350 | union perf_event *event, | |
351 | struct perf_sample *sample, | |
352 | struct machine *machine) | |
353 | { | |
354 | int err; | |
355 | ||
356 | err = perf_event__process_exit(tool, event, sample, machine); | |
357 | perf_event__repipe(tool, event, sample, machine); | |
358 | ||
359 | return err; | |
360 | } | |
361 | ||
89f1688a JO |
362 | static int perf_event__repipe_tracing_data(struct perf_session *session, |
363 | union perf_event *event) | |
454c407e TZ |
364 | { |
365 | int err; | |
366 | ||
89f1688a JO |
367 | perf_event__repipe_synth(session->tool, event); |
368 | err = perf_event__process_tracing_data(session, event); | |
454c407e TZ |
369 | |
370 | return err; | |
371 | } | |
372 | ||
89f1688a JO |
373 | static int perf_event__repipe_id_index(struct perf_session *session, |
374 | union perf_event *event) | |
0f0aa5e0 AH |
375 | { |
376 | int err; | |
377 | ||
89f1688a JO |
378 | perf_event__repipe_synth(session->tool, event); |
379 | err = perf_event__process_id_index(session, event); | |
0f0aa5e0 AH |
380 | |
381 | return err; | |
382 | } | |
383 | ||
c824c433 | 384 | static int dso__read_build_id(struct dso *dso) |
454c407e | 385 | { |
c824c433 | 386 | if (dso->has_build_id) |
090f7204 | 387 | return 0; |
454c407e | 388 | |
c824c433 ACM |
389 | if (filename__read_build_id(dso->long_name, dso->build_id, |
390 | sizeof(dso->build_id)) > 0) { | |
391 | dso->has_build_id = true; | |
090f7204 ACM |
392 | return 0; |
393 | } | |
454c407e | 394 | |
090f7204 ACM |
395 | return -1; |
396 | } | |
454c407e | 397 | |
c824c433 | 398 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
743eb868 | 399 | struct machine *machine) |
090f7204 ACM |
400 | { |
401 | u16 misc = PERF_RECORD_MISC_USER; | |
090f7204 | 402 | int err; |
454c407e | 403 | |
c824c433 ACM |
404 | if (dso__read_build_id(dso) < 0) { |
405 | pr_debug("no build_id found for %s\n", dso->long_name); | |
090f7204 ACM |
406 | return -1; |
407 | } | |
454c407e | 408 | |
c824c433 | 409 | if (dso->kernel) |
090f7204 | 410 | misc = PERF_RECORD_MISC_KERNEL; |
454c407e | 411 | |
c824c433 | 412 | err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe, |
743eb868 | 413 | machine); |
090f7204 | 414 | if (err) { |
c824c433 | 415 | pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
454c407e TZ |
416 | return -1; |
417 | } | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
45694aa7 | 422 | static int perf_event__inject_buildid(struct perf_tool *tool, |
d20deb64 | 423 | union perf_event *event, |
8115d60c | 424 | struct perf_sample *sample, |
1d037ca1 | 425 | struct perf_evsel *evsel __maybe_unused, |
743eb868 | 426 | struct machine *machine) |
454c407e TZ |
427 | { |
428 | struct addr_location al; | |
429 | struct thread *thread; | |
454c407e | 430 | |
13ce34df | 431 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
454c407e TZ |
432 | if (thread == NULL) { |
433 | pr_err("problem processing %d event, skipping it.\n", | |
434 | event->header.type); | |
454c407e TZ |
435 | goto repipe; |
436 | } | |
437 | ||
71a84b5a | 438 | if (thread__find_map(thread, sample->cpumode, sample->ip, &al)) { |
454c407e TZ |
439 | if (!al.map->dso->hit) { |
440 | al.map->dso->hit = 1; | |
be39db9f | 441 | if (map__load(al.map) >= 0) { |
45694aa7 | 442 | dso__inject_build_id(al.map->dso, tool, machine); |
090f7204 ACM |
443 | /* |
444 | * If this fails, too bad, let the other side | |
445 | * account this as unresolved. | |
446 | */ | |
393be2e3 | 447 | } else { |
89fe808a | 448 | #ifdef HAVE_LIBELF_SUPPORT |
454c407e TZ |
449 | pr_warning("no symbols found in %s, maybe " |
450 | "install a debug package?\n", | |
451 | al.map->dso->long_name); | |
393be2e3 NK |
452 | #endif |
453 | } | |
454c407e TZ |
454 | } |
455 | } | |
456 | ||
b91fc39f | 457 | thread__put(thread); |
454c407e | 458 | repipe: |
45694aa7 | 459 | perf_event__repipe(tool, event, sample, machine); |
090f7204 | 460 | return 0; |
454c407e TZ |
461 | } |
462 | ||
26a031e1 AV |
463 | static int perf_inject__sched_process_exit(struct perf_tool *tool, |
464 | union perf_event *event __maybe_unused, | |
465 | struct perf_sample *sample, | |
466 | struct perf_evsel *evsel __maybe_unused, | |
467 | struct machine *machine __maybe_unused) | |
468 | { | |
469 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
470 | struct event_entry *ent; | |
471 | ||
472 | list_for_each_entry(ent, &inject->samples, node) { | |
473 | if (sample->tid == ent->tid) { | |
474 | list_del_init(&ent->node); | |
475 | free(ent); | |
476 | break; | |
477 | } | |
478 | } | |
479 | ||
480 | return 0; | |
481 | } | |
482 | ||
483 | static int perf_inject__sched_switch(struct perf_tool *tool, | |
484 | union perf_event *event, | |
485 | struct perf_sample *sample, | |
486 | struct perf_evsel *evsel, | |
487 | struct machine *machine) | |
488 | { | |
489 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
490 | struct event_entry *ent; | |
491 | ||
492 | perf_inject__sched_process_exit(tool, event, sample, evsel, machine); | |
493 | ||
494 | ent = malloc(event->header.size + sizeof(struct event_entry)); | |
495 | if (ent == NULL) { | |
496 | color_fprintf(stderr, PERF_COLOR_RED, | |
497 | "Not enough memory to process sched switch event!"); | |
498 | return -1; | |
499 | } | |
500 | ||
501 | ent->tid = sample->tid; | |
502 | memcpy(&ent->event, event, event->header.size); | |
503 | list_add(&ent->node, &inject->samples); | |
504 | return 0; | |
505 | } | |
506 | ||
507 | static int perf_inject__sched_stat(struct perf_tool *tool, | |
508 | union perf_event *event __maybe_unused, | |
509 | struct perf_sample *sample, | |
510 | struct perf_evsel *evsel, | |
511 | struct machine *machine) | |
512 | { | |
513 | struct event_entry *ent; | |
514 | union perf_event *event_sw; | |
515 | struct perf_sample sample_sw; | |
516 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
517 | u32 pid = perf_evsel__intval(evsel, sample, "pid"); | |
518 | ||
519 | list_for_each_entry(ent, &inject->samples, node) { | |
520 | if (pid == ent->tid) | |
521 | goto found; | |
522 | } | |
523 | ||
524 | return 0; | |
525 | found: | |
526 | event_sw = &ent->event[0]; | |
527 | perf_evsel__parse_sample(evsel, event_sw, &sample_sw); | |
528 | ||
529 | sample_sw.period = sample->period; | |
530 | sample_sw.time = sample->time; | |
531 | perf_event__synthesize_sample(event_sw, evsel->attr.sample_type, | |
936f1f30 | 532 | evsel->attr.read_format, &sample_sw); |
54a3cf59 | 533 | build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
26a031e1 AV |
534 | return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
535 | } | |
536 | ||
1d037ca1 | 537 | static void sig_handler(int sig __maybe_unused) |
454c407e TZ |
538 | { |
539 | session_done = 1; | |
540 | } | |
541 | ||
26a031e1 AV |
542 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
543 | u64 sample_type, const char *sample_msg) | |
544 | { | |
545 | struct perf_event_attr *attr = &evsel->attr; | |
546 | const char *name = perf_evsel__name(evsel); | |
547 | ||
548 | if (!(attr->sample_type & sample_type)) { | |
549 | pr_err("Samples for %s event do not have %s attribute set.", | |
550 | name, sample_msg); | |
551 | return -EINVAL; | |
552 | } | |
553 | ||
554 | return 0; | |
555 | } | |
556 | ||
f56fb986 AH |
557 | static int drop_sample(struct perf_tool *tool __maybe_unused, |
558 | union perf_event *event __maybe_unused, | |
559 | struct perf_sample *sample __maybe_unused, | |
560 | struct perf_evsel *evsel __maybe_unused, | |
561 | struct machine *machine __maybe_unused) | |
562 | { | |
563 | return 0; | |
564 | } | |
565 | ||
566 | static void strip_init(struct perf_inject *inject) | |
567 | { | |
568 | struct perf_evlist *evlist = inject->session->evlist; | |
569 | struct perf_evsel *evsel; | |
570 | ||
571 | inject->tool.context_switch = perf_event__drop; | |
572 | ||
e5cadb93 | 573 | evlist__for_each_entry(evlist, evsel) |
f56fb986 AH |
574 | evsel->handler = drop_sample; |
575 | } | |
576 | ||
577 | static bool has_tracking(struct perf_evsel *evsel) | |
578 | { | |
579 | return evsel->attr.mmap || evsel->attr.mmap2 || evsel->attr.comm || | |
580 | evsel->attr.task; | |
581 | } | |
582 | ||
583 | #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \ | |
584 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER) | |
585 | ||
586 | /* | |
587 | * In order that the perf.data file is parsable, tracking events like MMAP need | |
588 | * their selected event to exist, except if there is only 1 selected event left | |
589 | * and it has a compatible sample type. | |
590 | */ | |
591 | static bool ok_to_remove(struct perf_evlist *evlist, | |
592 | struct perf_evsel *evsel_to_remove) | |
593 | { | |
594 | struct perf_evsel *evsel; | |
595 | int cnt = 0; | |
596 | bool ok = false; | |
597 | ||
598 | if (!has_tracking(evsel_to_remove)) | |
599 | return true; | |
600 | ||
e5cadb93 | 601 | evlist__for_each_entry(evlist, evsel) { |
f56fb986 AH |
602 | if (evsel->handler != drop_sample) { |
603 | cnt += 1; | |
604 | if ((evsel->attr.sample_type & COMPAT_MASK) == | |
605 | (evsel_to_remove->attr.sample_type & COMPAT_MASK)) | |
606 | ok = true; | |
607 | } | |
608 | } | |
609 | ||
610 | return ok && cnt == 1; | |
611 | } | |
612 | ||
613 | static void strip_fini(struct perf_inject *inject) | |
614 | { | |
615 | struct perf_evlist *evlist = inject->session->evlist; | |
616 | struct perf_evsel *evsel, *tmp; | |
617 | ||
618 | /* Remove non-synthesized evsels if possible */ | |
e5cadb93 | 619 | evlist__for_each_entry_safe(evlist, tmp, evsel) { |
f56fb986 AH |
620 | if (evsel->handler == drop_sample && |
621 | ok_to_remove(evlist, evsel)) { | |
622 | pr_debug("Deleting %s\n", perf_evsel__name(evsel)); | |
623 | perf_evlist__remove(evlist, evsel); | |
624 | perf_evsel__delete(evsel); | |
625 | } | |
626 | } | |
627 | } | |
628 | ||
5ded57ac | 629 | static int __cmd_inject(struct perf_inject *inject) |
454c407e | 630 | { |
454c407e | 631 | int ret = -EINVAL; |
1cb8bdcc | 632 | struct perf_session *session = inject->session; |
8ceb41d7 JO |
633 | struct perf_data *data_out = &inject->output; |
634 | int fd = perf_data__fd(data_out); | |
0f0aa5e0 | 635 | u64 output_data_offset; |
454c407e TZ |
636 | |
637 | signal(SIGINT, sig_handler); | |
638 | ||
0f0aa5e0 AH |
639 | if (inject->build_ids || inject->sched_stat || |
640 | inject->itrace_synth_opts.set) { | |
5ded57ac | 641 | inject->tool.mmap = perf_event__repipe_mmap; |
5c5e854b | 642 | inject->tool.mmap2 = perf_event__repipe_mmap2; |
f62d3f0f | 643 | inject->tool.fork = perf_event__repipe_fork; |
5ded57ac | 644 | inject->tool.tracing_data = perf_event__repipe_tracing_data; |
454c407e TZ |
645 | } |
646 | ||
0f0aa5e0 AH |
647 | output_data_offset = session->header.data_offset; |
648 | ||
54a3cf59 AV |
649 | if (inject->build_ids) { |
650 | inject->tool.sample = perf_event__inject_buildid; | |
651 | } else if (inject->sched_stat) { | |
26a031e1 AV |
652 | struct perf_evsel *evsel; |
653 | ||
e5cadb93 | 654 | evlist__for_each_entry(session->evlist, evsel) { |
26a031e1 AV |
655 | const char *name = perf_evsel__name(evsel); |
656 | ||
657 | if (!strcmp(name, "sched:sched_switch")) { | |
658 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) | |
659 | return -EINVAL; | |
660 | ||
744a9719 | 661 | evsel->handler = perf_inject__sched_switch; |
26a031e1 | 662 | } else if (!strcmp(name, "sched:sched_process_exit")) |
744a9719 | 663 | evsel->handler = perf_inject__sched_process_exit; |
26a031e1 | 664 | else if (!strncmp(name, "sched:sched_stat_", 17)) |
744a9719 | 665 | evsel->handler = perf_inject__sched_stat; |
26a031e1 | 666 | } |
0f0aa5e0 AH |
667 | } else if (inject->itrace_synth_opts.set) { |
668 | session->itrace_synth_opts = &inject->itrace_synth_opts; | |
669 | inject->itrace_synth_opts.inject = true; | |
670 | inject->tool.comm = perf_event__repipe_comm; | |
f3b3614a | 671 | inject->tool.namespaces = perf_event__repipe_namespaces; |
0f0aa5e0 AH |
672 | inject->tool.exit = perf_event__repipe_exit; |
673 | inject->tool.id_index = perf_event__repipe_id_index; | |
674 | inject->tool.auxtrace_info = perf_event__process_auxtrace_info; | |
675 | inject->tool.auxtrace = perf_event__process_auxtrace; | |
73117308 AH |
676 | inject->tool.aux = perf_event__drop_aux; |
677 | inject->tool.itrace_start = perf_event__drop_aux, | |
0f0aa5e0 AH |
678 | inject->tool.ordered_events = true; |
679 | inject->tool.ordering_requires_timestamps = true; | |
680 | /* Allow space in the header for new attributes */ | |
681 | output_data_offset = 4096; | |
f56fb986 AH |
682 | if (inject->strip) |
683 | strip_init(inject); | |
26a031e1 AV |
684 | } |
685 | ||
99fa2984 AH |
686 | if (!inject->itrace_synth_opts.set) |
687 | auxtrace_index__free(&session->auxtrace_index); | |
688 | ||
8ceb41d7 | 689 | if (!data_out->is_pipe) |
0f0aa5e0 | 690 | lseek(fd, output_data_offset, SEEK_SET); |
e558a5bd | 691 | |
b7b61cbe | 692 | ret = perf_session__process_events(session); |
bb8d521f DCC |
693 | if (ret) |
694 | return ret; | |
454c407e | 695 | |
8ceb41d7 | 696 | if (!data_out->is_pipe) { |
640dad47 | 697 | if (inject->build_ids) |
e38b43c3 AH |
698 | perf_header__set_feat(&session->header, |
699 | HEADER_BUILD_ID); | |
640dad47 AH |
700 | /* |
701 | * Keep all buildids when there is unprocessed AUX data because | |
702 | * it is not known which ones the AUX trace hits. | |
703 | */ | |
704 | if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && | |
705 | inject->have_auxtrace && !inject->itrace_synth_opts.set) | |
706 | dsos__hit_all(session); | |
0f0aa5e0 AH |
707 | /* |
708 | * The AUX areas have been removed and replaced with | |
73117308 AH |
709 | * synthesized hardware events, so clear the feature flag and |
710 | * remove the evsel. | |
0f0aa5e0 | 711 | */ |
051a01b9 | 712 | if (inject->itrace_synth_opts.set) { |
73117308 AH |
713 | struct perf_evsel *evsel; |
714 | ||
0f0aa5e0 AH |
715 | perf_header__clear_feat(&session->header, |
716 | HEADER_AUXTRACE); | |
051a01b9 AH |
717 | if (inject->itrace_synth_opts.last_branch) |
718 | perf_header__set_feat(&session->header, | |
719 | HEADER_BRANCH_STACK); | |
73117308 AH |
720 | evsel = perf_evlist__id2evsel_strict(session->evlist, |
721 | inject->aux_id); | |
722 | if (evsel) { | |
723 | pr_debug("Deleting %s\n", | |
724 | perf_evsel__name(evsel)); | |
725 | perf_evlist__remove(session->evlist, evsel); | |
726 | perf_evsel__delete(evsel); | |
727 | } | |
f56fb986 AH |
728 | if (inject->strip) |
729 | strip_fini(inject); | |
051a01b9 | 730 | } |
0f0aa5e0 | 731 | session->header.data_offset = output_data_offset; |
e558a5bd | 732 | session->header.data_size = inject->bytes_written; |
42aa276f | 733 | perf_session__write_header(session, session->evlist, fd, true); |
e558a5bd AV |
734 | } |
735 | ||
454c407e TZ |
736 | return ret; |
737 | } | |
738 | ||
b0ad8ea6 | 739 | int cmd_inject(int argc, const char **argv) |
454c407e | 740 | { |
5ded57ac ACM |
741 | struct perf_inject inject = { |
742 | .tool = { | |
743 | .sample = perf_event__repipe_sample, | |
744 | .mmap = perf_event__repipe, | |
5c5e854b | 745 | .mmap2 = perf_event__repipe, |
5ded57ac ACM |
746 | .comm = perf_event__repipe, |
747 | .fork = perf_event__repipe, | |
748 | .exit = perf_event__repipe, | |
749 | .lost = perf_event__repipe, | |
d8145b3e | 750 | .lost_samples = perf_event__repipe, |
4a96f7a0 | 751 | .aux = perf_event__repipe, |
0ad21f68 | 752 | .itrace_start = perf_event__repipe, |
0286039f | 753 | .context_switch = perf_event__repipe, |
5ded57ac ACM |
754 | .read = perf_event__repipe_sample, |
755 | .throttle = perf_event__repipe, | |
756 | .unthrottle = perf_event__repipe, | |
757 | .attr = perf_event__repipe_attr, | |
47c3d109 | 758 | .tracing_data = perf_event__repipe_op2_synth, |
cd17a9b5 AH |
759 | .auxtrace_info = perf_event__repipe_op2_synth, |
760 | .auxtrace = perf_event__repipe_auxtrace, | |
761 | .auxtrace_error = perf_event__repipe_op2_synth, | |
46bc29b9 | 762 | .time_conv = perf_event__repipe_op2_synth, |
d704ebda | 763 | .finished_round = perf_event__repipe_oe_synth, |
5ded57ac | 764 | .build_id = perf_event__repipe_op2_synth, |
3c659eed | 765 | .id_index = perf_event__repipe_op2_synth, |
e9def1b2 | 766 | .feature = perf_event__repipe_op2_synth, |
5ded57ac | 767 | }, |
e558a5bd | 768 | .input_name = "-", |
26a031e1 | 769 | .samples = LIST_HEAD_INIT(inject.samples), |
3406912c | 770 | .output = { |
eae8ad80 JO |
771 | .file = { |
772 | .path = "-", | |
773 | }, | |
774 | .mode = PERF_DATA_MODE_WRITE, | |
3406912c | 775 | }, |
5ded57ac | 776 | }; |
8ceb41d7 | 777 | struct perf_data data = { |
1cb8bdcc NK |
778 | .mode = PERF_DATA_MODE_READ, |
779 | }; | |
780 | int ret; | |
781 | ||
9b07e27f | 782 | struct option options[] = { |
5ded57ac ACM |
783 | OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
784 | "Inject build-ids into the output stream"), | |
e558a5bd AV |
785 | OPT_STRING('i', "input", &inject.input_name, "file", |
786 | "input file name"), | |
eae8ad80 | 787 | OPT_STRING('o', "output", &inject.output.file.path, "file", |
e558a5bd | 788 | "output file name"), |
26a031e1 AV |
789 | OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
790 | "Merge sched-stat and sched-switch for getting events " | |
791 | "where and how long tasks slept"), | |
e12b202f | 792 | #ifdef HAVE_JITDUMP |
9b07e27f | 793 | OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
e12b202f | 794 | #endif |
5ded57ac ACM |
795 | OPT_INCR('v', "verbose", &verbose, |
796 | "be more verbose (show build ids, etc)"), | |
a7a2b8b4 AH |
797 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
798 | "kallsyms pathname"), | |
8ceb41d7 | 799 | OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"), |
0f0aa5e0 | 800 | OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
c12e039d AK |
801 | NULL, "opts", "Instruction Tracing options\n" |
802 | ITRACE_HELP, | |
0f0aa5e0 | 803 | itrace_parse_synth_opts), |
f56fb986 AH |
804 | OPT_BOOLEAN(0, "strip", &inject.strip, |
805 | "strip non-synthesized events (use with --itrace)"), | |
5ded57ac ACM |
806 | OPT_END() |
807 | }; | |
002439e8 ACM |
808 | const char * const inject_usage[] = { |
809 | "perf inject [<options>]", | |
810 | NULL | |
811 | }; | |
e12b202f | 812 | #ifndef HAVE_JITDUMP |
9b07e27f SE |
813 | set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
814 | #endif | |
002439e8 | 815 | argc = parse_options(argc, argv, options, inject_usage, 0); |
454c407e TZ |
816 | |
817 | /* | |
818 | * Any (unrecognized) arguments left? | |
819 | */ | |
820 | if (argc) | |
002439e8 | 821 | usage_with_options(inject_usage, options); |
454c407e | 822 | |
f56fb986 AH |
823 | if (inject.strip && !inject.itrace_synth_opts.set) { |
824 | pr_err("--strip option requires --itrace option\n"); | |
825 | return -1; | |
826 | } | |
827 | ||
8ceb41d7 | 828 | if (perf_data__open(&inject.output)) { |
3406912c JO |
829 | perror("failed to create output file"); |
830 | return -1; | |
e558a5bd AV |
831 | } |
832 | ||
b7b61cbe ACM |
833 | inject.tool.ordered_events = inject.sched_stat; |
834 | ||
eae8ad80 | 835 | data.file.path = inject.input_name; |
8ceb41d7 | 836 | inject.session = perf_session__new(&data, true, &inject.tool); |
1cb8bdcc | 837 | if (inject.session == NULL) |
52e02834 | 838 | return -1; |
1cb8bdcc | 839 | |
921f3fad ACM |
840 | if (inject.build_ids) { |
841 | /* | |
842 | * to make sure the mmap records are ordered correctly | |
843 | * and so that the correct especially due to jitted code | |
844 | * mmaps. We cannot generate the buildid hit list and | |
845 | * inject the jit mmaps at the same time for now. | |
846 | */ | |
847 | inject.tool.ordered_events = true; | |
848 | inject.tool.ordering_requires_timestamps = true; | |
849 | } | |
e12b202f | 850 | #ifdef HAVE_JITDUMP |
9b07e27f | 851 | if (inject.jit_mode) { |
9b07e27f SE |
852 | inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
853 | inject.tool.mmap = perf_event__jit_repipe_mmap; | |
854 | inject.tool.ordered_events = true; | |
855 | inject.tool.ordering_requires_timestamps = true; | |
856 | /* | |
857 | * JIT MMAP injection injects all MMAP events in one go, so it | |
858 | * does not obey finished_round semantics. | |
859 | */ | |
860 | inject.tool.finished_round = perf_event__drop_oe; | |
861 | } | |
862 | #endif | |
9fedfb0c TS |
863 | ret = symbol__init(&inject.session->header.env); |
864 | if (ret < 0) | |
865 | goto out_delete; | |
454c407e | 866 | |
1cb8bdcc NK |
867 | ret = __cmd_inject(&inject); |
868 | ||
9fedfb0c | 869 | out_delete: |
1cb8bdcc | 870 | perf_session__delete(inject.session); |
1cb8bdcc | 871 | return ret; |
454c407e | 872 | } |