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Commit | Line | Data |
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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 JO |
38 | const char *input_name; |
39 | struct perf_data_file output; | |
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 | |
cd17a9b5 | 56 | size = perf_data_file__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 | ||
45694aa7 | 89 | static int perf_event__repipe_op2_synth(struct perf_tool *tool, |
743eb868 | 90 | union perf_event *event, |
1d037ca1 IT |
91 | struct perf_session *session |
92 | __maybe_unused) | |
743eb868 | 93 | { |
63c2c9f8 | 94 | return perf_event__repipe_synth(tool, event); |
743eb868 ACM |
95 | } |
96 | ||
47c3d109 AH |
97 | static int perf_event__repipe_attr(struct perf_tool *tool, |
98 | union perf_event *event, | |
99 | struct perf_evlist **pevlist) | |
10d0f086 | 100 | { |
89c97d93 AH |
101 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
102 | tool); | |
1a1ed1ba | 103 | int ret; |
47c3d109 AH |
104 | |
105 | ret = perf_event__process_attr(tool, event, pevlist); | |
1a1ed1ba SE |
106 | if (ret) |
107 | return ret; | |
108 | ||
a261e4a0 | 109 | if (!inject->output.is_pipe) |
89c97d93 AH |
110 | return 0; |
111 | ||
47c3d109 | 112 | return perf_event__repipe_synth(tool, event); |
10d0f086 ACM |
113 | } |
114 | ||
e31f0d01 AH |
115 | #ifdef HAVE_AUXTRACE_SUPPORT |
116 | ||
117 | static int copy_bytes(struct perf_inject *inject, int fd, off_t size) | |
118 | { | |
119 | char buf[4096]; | |
120 | ssize_t ssz; | |
121 | int ret; | |
122 | ||
123 | while (size > 0) { | |
124 | ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); | |
125 | if (ssz < 0) | |
126 | return -errno; | |
127 | ret = output_bytes(inject, buf, ssz); | |
128 | if (ret) | |
129 | return ret; | |
130 | size -= ssz; | |
131 | } | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
cd17a9b5 AH |
136 | static s64 perf_event__repipe_auxtrace(struct perf_tool *tool, |
137 | union perf_event *event, | |
b8f8eb84 | 138 | struct perf_session *session) |
cd17a9b5 AH |
139 | { |
140 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
141 | tool); | |
142 | int ret; | |
143 | ||
cd10b289 AH |
144 | inject->have_auxtrace = true; |
145 | ||
99fa2984 AH |
146 | if (!inject->output.is_pipe) { |
147 | off_t offset; | |
148 | ||
149 | offset = lseek(inject->output.fd, 0, SEEK_CUR); | |
150 | if (offset == -1) | |
151 | return -errno; | |
152 | ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, | |
153 | event, offset); | |
154 | if (ret < 0) | |
155 | return ret; | |
156 | } | |
157 | ||
cd17a9b5 AH |
158 | if (perf_data_file__is_pipe(session->file) || !session->one_mmap) { |
159 | ret = output_bytes(inject, event, event->header.size); | |
160 | if (ret < 0) | |
161 | return ret; | |
162 | ret = copy_bytes(inject, perf_data_file__fd(session->file), | |
163 | event->auxtrace.size); | |
164 | } else { | |
165 | ret = output_bytes(inject, event, | |
166 | event->header.size + event->auxtrace.size); | |
167 | } | |
168 | if (ret < 0) | |
169 | return ret; | |
170 | ||
171 | return event->auxtrace.size; | |
172 | } | |
173 | ||
e31f0d01 AH |
174 | #else |
175 | ||
176 | static s64 | |
177 | perf_event__repipe_auxtrace(struct perf_tool *tool __maybe_unused, | |
178 | union perf_event *event __maybe_unused, | |
179 | struct perf_session *session __maybe_unused) | |
180 | { | |
181 | pr_err("AUX area tracing not supported\n"); | |
182 | return -EINVAL; | |
183 | } | |
184 | ||
185 | #endif | |
186 | ||
45694aa7 | 187 | static int perf_event__repipe(struct perf_tool *tool, |
d20deb64 | 188 | union perf_event *event, |
1d037ca1 | 189 | struct perf_sample *sample __maybe_unused, |
63c2c9f8 | 190 | struct machine *machine __maybe_unused) |
640c03ce | 191 | { |
63c2c9f8 | 192 | return perf_event__repipe_synth(tool, event); |
640c03ce ACM |
193 | } |
194 | ||
f56fb986 AH |
195 | static int perf_event__drop(struct perf_tool *tool __maybe_unused, |
196 | union perf_event *event __maybe_unused, | |
197 | struct perf_sample *sample __maybe_unused, | |
198 | struct machine *machine __maybe_unused) | |
199 | { | |
200 | return 0; | |
201 | } | |
202 | ||
73117308 AH |
203 | static int perf_event__drop_aux(struct perf_tool *tool, |
204 | union perf_event *event __maybe_unused, | |
205 | struct perf_sample *sample, | |
206 | struct machine *machine __maybe_unused) | |
207 | { | |
208 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
209 | ||
210 | if (!inject->aux_id) | |
211 | inject->aux_id = sample->id; | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
26a031e1 AV |
216 | typedef int (*inject_handler)(struct perf_tool *tool, |
217 | union perf_event *event, | |
218 | struct perf_sample *sample, | |
219 | struct perf_evsel *evsel, | |
220 | struct machine *machine); | |
221 | ||
45694aa7 | 222 | static int perf_event__repipe_sample(struct perf_tool *tool, |
d20deb64 | 223 | union perf_event *event, |
26a031e1 AV |
224 | struct perf_sample *sample, |
225 | struct perf_evsel *evsel, | |
226 | struct machine *machine) | |
9e69c210 | 227 | { |
744a9719 ACM |
228 | if (evsel->handler) { |
229 | inject_handler f = evsel->handler; | |
26a031e1 AV |
230 | return f(tool, event, sample, evsel, machine); |
231 | } | |
232 | ||
54a3cf59 AV |
233 | build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
234 | ||
63c2c9f8 | 235 | return perf_event__repipe_synth(tool, event); |
9e69c210 ACM |
236 | } |
237 | ||
45694aa7 | 238 | static int perf_event__repipe_mmap(struct perf_tool *tool, |
d20deb64 | 239 | union perf_event *event, |
8115d60c | 240 | struct perf_sample *sample, |
743eb868 | 241 | struct machine *machine) |
454c407e TZ |
242 | { |
243 | int err; | |
244 | ||
45694aa7 ACM |
245 | err = perf_event__process_mmap(tool, event, sample, machine); |
246 | perf_event__repipe(tool, event, sample, machine); | |
454c407e TZ |
247 | |
248 | return err; | |
249 | } | |
250 | ||
e12b202f | 251 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
252 | static int perf_event__jit_repipe_mmap(struct perf_tool *tool, |
253 | union perf_event *event, | |
254 | struct perf_sample *sample, | |
255 | struct machine *machine) | |
256 | { | |
257 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
258 | u64 n = 0; | |
570735b3 | 259 | int ret; |
9b07e27f SE |
260 | |
261 | /* | |
262 | * if jit marker, then inject jit mmaps and generate ELF images | |
263 | */ | |
570735b3 AH |
264 | ret = jit_process(inject->session, &inject->output, machine, |
265 | event->mmap.filename, sample->pid, &n); | |
266 | if (ret < 0) | |
267 | return ret; | |
268 | if (ret) { | |
9b07e27f SE |
269 | inject->bytes_written += n; |
270 | return 0; | |
271 | } | |
272 | return perf_event__repipe_mmap(tool, event, sample, machine); | |
273 | } | |
274 | #endif | |
275 | ||
5c5e854b SE |
276 | static int perf_event__repipe_mmap2(struct perf_tool *tool, |
277 | union perf_event *event, | |
278 | struct perf_sample *sample, | |
279 | struct machine *machine) | |
280 | { | |
281 | int err; | |
282 | ||
283 | err = perf_event__process_mmap2(tool, event, sample, machine); | |
284 | perf_event__repipe(tool, event, sample, machine); | |
285 | ||
286 | return err; | |
287 | } | |
288 | ||
e12b202f | 289 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
290 | static int perf_event__jit_repipe_mmap2(struct perf_tool *tool, |
291 | union perf_event *event, | |
292 | struct perf_sample *sample, | |
293 | struct machine *machine) | |
294 | { | |
295 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
296 | u64 n = 0; | |
570735b3 | 297 | int ret; |
9b07e27f SE |
298 | |
299 | /* | |
300 | * if jit marker, then inject jit mmaps and generate ELF images | |
301 | */ | |
570735b3 AH |
302 | ret = jit_process(inject->session, &inject->output, machine, |
303 | event->mmap2.filename, sample->pid, &n); | |
304 | if (ret < 0) | |
305 | return ret; | |
306 | if (ret) { | |
9b07e27f SE |
307 | inject->bytes_written += n; |
308 | return 0; | |
309 | } | |
310 | return perf_event__repipe_mmap2(tool, event, sample, machine); | |
311 | } | |
312 | #endif | |
313 | ||
f62d3f0f | 314 | static int perf_event__repipe_fork(struct perf_tool *tool, |
d20deb64 | 315 | union perf_event *event, |
8115d60c | 316 | struct perf_sample *sample, |
743eb868 | 317 | struct machine *machine) |
454c407e TZ |
318 | { |
319 | int err; | |
320 | ||
f62d3f0f | 321 | err = perf_event__process_fork(tool, event, sample, machine); |
45694aa7 | 322 | perf_event__repipe(tool, event, sample, machine); |
454c407e TZ |
323 | |
324 | return err; | |
325 | } | |
326 | ||
0f0aa5e0 AH |
327 | static int perf_event__repipe_comm(struct perf_tool *tool, |
328 | union perf_event *event, | |
329 | struct perf_sample *sample, | |
330 | struct machine *machine) | |
331 | { | |
332 | int err; | |
333 | ||
334 | err = perf_event__process_comm(tool, event, sample, machine); | |
335 | perf_event__repipe(tool, event, sample, machine); | |
336 | ||
337 | return err; | |
338 | } | |
339 | ||
f3b3614a HB |
340 | static int perf_event__repipe_namespaces(struct perf_tool *tool, |
341 | union perf_event *event, | |
342 | struct perf_sample *sample, | |
343 | struct machine *machine) | |
344 | { | |
345 | int err = perf_event__process_namespaces(tool, event, sample, machine); | |
346 | ||
347 | perf_event__repipe(tool, event, sample, machine); | |
348 | ||
349 | return err; | |
350 | } | |
351 | ||
0f0aa5e0 AH |
352 | static int perf_event__repipe_exit(struct perf_tool *tool, |
353 | union perf_event *event, | |
354 | struct perf_sample *sample, | |
355 | struct machine *machine) | |
356 | { | |
357 | int err; | |
358 | ||
359 | err = perf_event__process_exit(tool, event, sample, machine); | |
360 | perf_event__repipe(tool, event, sample, machine); | |
361 | ||
362 | return err; | |
363 | } | |
364 | ||
47c3d109 AH |
365 | static int perf_event__repipe_tracing_data(struct perf_tool *tool, |
366 | union perf_event *event, | |
8115d60c | 367 | struct perf_session *session) |
454c407e TZ |
368 | { |
369 | int err; | |
370 | ||
47c3d109 AH |
371 | perf_event__repipe_synth(tool, event); |
372 | err = perf_event__process_tracing_data(tool, event, session); | |
454c407e TZ |
373 | |
374 | return err; | |
375 | } | |
376 | ||
0f0aa5e0 AH |
377 | static int perf_event__repipe_id_index(struct perf_tool *tool, |
378 | union perf_event *event, | |
379 | struct perf_session *session) | |
380 | { | |
381 | int err; | |
382 | ||
383 | perf_event__repipe_synth(tool, event); | |
384 | err = perf_event__process_id_index(tool, event, session); | |
385 | ||
386 | return err; | |
387 | } | |
388 | ||
c824c433 | 389 | static int dso__read_build_id(struct dso *dso) |
454c407e | 390 | { |
c824c433 | 391 | if (dso->has_build_id) |
090f7204 | 392 | return 0; |
454c407e | 393 | |
c824c433 ACM |
394 | if (filename__read_build_id(dso->long_name, dso->build_id, |
395 | sizeof(dso->build_id)) > 0) { | |
396 | dso->has_build_id = true; | |
090f7204 ACM |
397 | return 0; |
398 | } | |
454c407e | 399 | |
090f7204 ACM |
400 | return -1; |
401 | } | |
454c407e | 402 | |
c824c433 | 403 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
743eb868 | 404 | struct machine *machine) |
090f7204 ACM |
405 | { |
406 | u16 misc = PERF_RECORD_MISC_USER; | |
090f7204 | 407 | int err; |
454c407e | 408 | |
c824c433 ACM |
409 | if (dso__read_build_id(dso) < 0) { |
410 | pr_debug("no build_id found for %s\n", dso->long_name); | |
090f7204 ACM |
411 | return -1; |
412 | } | |
454c407e | 413 | |
c824c433 | 414 | if (dso->kernel) |
090f7204 | 415 | misc = PERF_RECORD_MISC_KERNEL; |
454c407e | 416 | |
c824c433 | 417 | err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe, |
743eb868 | 418 | machine); |
090f7204 | 419 | if (err) { |
c824c433 | 420 | pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
454c407e TZ |
421 | return -1; |
422 | } | |
423 | ||
424 | return 0; | |
425 | } | |
426 | ||
45694aa7 | 427 | static int perf_event__inject_buildid(struct perf_tool *tool, |
d20deb64 | 428 | union perf_event *event, |
8115d60c | 429 | struct perf_sample *sample, |
1d037ca1 | 430 | struct perf_evsel *evsel __maybe_unused, |
743eb868 | 431 | struct machine *machine) |
454c407e TZ |
432 | { |
433 | struct addr_location al; | |
434 | struct thread *thread; | |
454c407e | 435 | |
13ce34df | 436 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
454c407e TZ |
437 | if (thread == NULL) { |
438 | pr_err("problem processing %d event, skipping it.\n", | |
439 | event->header.type); | |
454c407e TZ |
440 | goto repipe; |
441 | } | |
442 | ||
473398a2 | 443 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al); |
454c407e TZ |
444 | |
445 | if (al.map != NULL) { | |
446 | if (!al.map->dso->hit) { | |
447 | al.map->dso->hit = 1; | |
be39db9f | 448 | if (map__load(al.map) >= 0) { |
45694aa7 | 449 | dso__inject_build_id(al.map->dso, tool, machine); |
090f7204 ACM |
450 | /* |
451 | * If this fails, too bad, let the other side | |
452 | * account this as unresolved. | |
453 | */ | |
393be2e3 | 454 | } else { |
89fe808a | 455 | #ifdef HAVE_LIBELF_SUPPORT |
454c407e TZ |
456 | pr_warning("no symbols found in %s, maybe " |
457 | "install a debug package?\n", | |
458 | al.map->dso->long_name); | |
393be2e3 NK |
459 | #endif |
460 | } | |
454c407e TZ |
461 | } |
462 | } | |
463 | ||
b91fc39f | 464 | thread__put(thread); |
454c407e | 465 | repipe: |
45694aa7 | 466 | perf_event__repipe(tool, event, sample, machine); |
090f7204 | 467 | return 0; |
454c407e TZ |
468 | } |
469 | ||
26a031e1 AV |
470 | static int perf_inject__sched_process_exit(struct perf_tool *tool, |
471 | union perf_event *event __maybe_unused, | |
472 | struct perf_sample *sample, | |
473 | struct perf_evsel *evsel __maybe_unused, | |
474 | struct machine *machine __maybe_unused) | |
475 | { | |
476 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
477 | struct event_entry *ent; | |
478 | ||
479 | list_for_each_entry(ent, &inject->samples, node) { | |
480 | if (sample->tid == ent->tid) { | |
481 | list_del_init(&ent->node); | |
482 | free(ent); | |
483 | break; | |
484 | } | |
485 | } | |
486 | ||
487 | return 0; | |
488 | } | |
489 | ||
490 | static int perf_inject__sched_switch(struct perf_tool *tool, | |
491 | union perf_event *event, | |
492 | struct perf_sample *sample, | |
493 | struct perf_evsel *evsel, | |
494 | struct machine *machine) | |
495 | { | |
496 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
497 | struct event_entry *ent; | |
498 | ||
499 | perf_inject__sched_process_exit(tool, event, sample, evsel, machine); | |
500 | ||
501 | ent = malloc(event->header.size + sizeof(struct event_entry)); | |
502 | if (ent == NULL) { | |
503 | color_fprintf(stderr, PERF_COLOR_RED, | |
504 | "Not enough memory to process sched switch event!"); | |
505 | return -1; | |
506 | } | |
507 | ||
508 | ent->tid = sample->tid; | |
509 | memcpy(&ent->event, event, event->header.size); | |
510 | list_add(&ent->node, &inject->samples); | |
511 | return 0; | |
512 | } | |
513 | ||
514 | static int perf_inject__sched_stat(struct perf_tool *tool, | |
515 | union perf_event *event __maybe_unused, | |
516 | struct perf_sample *sample, | |
517 | struct perf_evsel *evsel, | |
518 | struct machine *machine) | |
519 | { | |
520 | struct event_entry *ent; | |
521 | union perf_event *event_sw; | |
522 | struct perf_sample sample_sw; | |
523 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
524 | u32 pid = perf_evsel__intval(evsel, sample, "pid"); | |
525 | ||
526 | list_for_each_entry(ent, &inject->samples, node) { | |
527 | if (pid == ent->tid) | |
528 | goto found; | |
529 | } | |
530 | ||
531 | return 0; | |
532 | found: | |
533 | event_sw = &ent->event[0]; | |
534 | perf_evsel__parse_sample(evsel, event_sw, &sample_sw); | |
535 | ||
536 | sample_sw.period = sample->period; | |
537 | sample_sw.time = sample->time; | |
538 | perf_event__synthesize_sample(event_sw, evsel->attr.sample_type, | |
d03f2170 AH |
539 | evsel->attr.read_format, &sample_sw, |
540 | false); | |
54a3cf59 | 541 | build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
26a031e1 AV |
542 | return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
543 | } | |
544 | ||
1d037ca1 | 545 | static void sig_handler(int sig __maybe_unused) |
454c407e TZ |
546 | { |
547 | session_done = 1; | |
548 | } | |
549 | ||
26a031e1 AV |
550 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
551 | u64 sample_type, const char *sample_msg) | |
552 | { | |
553 | struct perf_event_attr *attr = &evsel->attr; | |
554 | const char *name = perf_evsel__name(evsel); | |
555 | ||
556 | if (!(attr->sample_type & sample_type)) { | |
557 | pr_err("Samples for %s event do not have %s attribute set.", | |
558 | name, sample_msg); | |
559 | return -EINVAL; | |
560 | } | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
f56fb986 AH |
565 | static int drop_sample(struct perf_tool *tool __maybe_unused, |
566 | union perf_event *event __maybe_unused, | |
567 | struct perf_sample *sample __maybe_unused, | |
568 | struct perf_evsel *evsel __maybe_unused, | |
569 | struct machine *machine __maybe_unused) | |
570 | { | |
571 | return 0; | |
572 | } | |
573 | ||
574 | static void strip_init(struct perf_inject *inject) | |
575 | { | |
576 | struct perf_evlist *evlist = inject->session->evlist; | |
577 | struct perf_evsel *evsel; | |
578 | ||
579 | inject->tool.context_switch = perf_event__drop; | |
580 | ||
e5cadb93 | 581 | evlist__for_each_entry(evlist, evsel) |
f56fb986 AH |
582 | evsel->handler = drop_sample; |
583 | } | |
584 | ||
585 | static bool has_tracking(struct perf_evsel *evsel) | |
586 | { | |
587 | return evsel->attr.mmap || evsel->attr.mmap2 || evsel->attr.comm || | |
588 | evsel->attr.task; | |
589 | } | |
590 | ||
591 | #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \ | |
592 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER) | |
593 | ||
594 | /* | |
595 | * In order that the perf.data file is parsable, tracking events like MMAP need | |
596 | * their selected event to exist, except if there is only 1 selected event left | |
597 | * and it has a compatible sample type. | |
598 | */ | |
599 | static bool ok_to_remove(struct perf_evlist *evlist, | |
600 | struct perf_evsel *evsel_to_remove) | |
601 | { | |
602 | struct perf_evsel *evsel; | |
603 | int cnt = 0; | |
604 | bool ok = false; | |
605 | ||
606 | if (!has_tracking(evsel_to_remove)) | |
607 | return true; | |
608 | ||
e5cadb93 | 609 | evlist__for_each_entry(evlist, evsel) { |
f56fb986 AH |
610 | if (evsel->handler != drop_sample) { |
611 | cnt += 1; | |
612 | if ((evsel->attr.sample_type & COMPAT_MASK) == | |
613 | (evsel_to_remove->attr.sample_type & COMPAT_MASK)) | |
614 | ok = true; | |
615 | } | |
616 | } | |
617 | ||
618 | return ok && cnt == 1; | |
619 | } | |
620 | ||
621 | static void strip_fini(struct perf_inject *inject) | |
622 | { | |
623 | struct perf_evlist *evlist = inject->session->evlist; | |
624 | struct perf_evsel *evsel, *tmp; | |
625 | ||
626 | /* Remove non-synthesized evsels if possible */ | |
e5cadb93 | 627 | evlist__for_each_entry_safe(evlist, tmp, evsel) { |
f56fb986 AH |
628 | if (evsel->handler == drop_sample && |
629 | ok_to_remove(evlist, evsel)) { | |
630 | pr_debug("Deleting %s\n", perf_evsel__name(evsel)); | |
631 | perf_evlist__remove(evlist, evsel); | |
632 | perf_evsel__delete(evsel); | |
633 | } | |
634 | } | |
635 | } | |
636 | ||
5ded57ac | 637 | static int __cmd_inject(struct perf_inject *inject) |
454c407e | 638 | { |
454c407e | 639 | int ret = -EINVAL; |
1cb8bdcc | 640 | struct perf_session *session = inject->session; |
3406912c | 641 | struct perf_data_file *file_out = &inject->output; |
42aa276f | 642 | int fd = perf_data_file__fd(file_out); |
0f0aa5e0 | 643 | u64 output_data_offset; |
454c407e TZ |
644 | |
645 | signal(SIGINT, sig_handler); | |
646 | ||
0f0aa5e0 AH |
647 | if (inject->build_ids || inject->sched_stat || |
648 | inject->itrace_synth_opts.set) { | |
5ded57ac | 649 | inject->tool.mmap = perf_event__repipe_mmap; |
5c5e854b | 650 | inject->tool.mmap2 = perf_event__repipe_mmap2; |
f62d3f0f | 651 | inject->tool.fork = perf_event__repipe_fork; |
5ded57ac | 652 | inject->tool.tracing_data = perf_event__repipe_tracing_data; |
454c407e TZ |
653 | } |
654 | ||
0f0aa5e0 AH |
655 | output_data_offset = session->header.data_offset; |
656 | ||
54a3cf59 AV |
657 | if (inject->build_ids) { |
658 | inject->tool.sample = perf_event__inject_buildid; | |
659 | } else if (inject->sched_stat) { | |
26a031e1 AV |
660 | struct perf_evsel *evsel; |
661 | ||
e5cadb93 | 662 | evlist__for_each_entry(session->evlist, evsel) { |
26a031e1 AV |
663 | const char *name = perf_evsel__name(evsel); |
664 | ||
665 | if (!strcmp(name, "sched:sched_switch")) { | |
666 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) | |
667 | return -EINVAL; | |
668 | ||
744a9719 | 669 | evsel->handler = perf_inject__sched_switch; |
26a031e1 | 670 | } else if (!strcmp(name, "sched:sched_process_exit")) |
744a9719 | 671 | evsel->handler = perf_inject__sched_process_exit; |
26a031e1 | 672 | else if (!strncmp(name, "sched:sched_stat_", 17)) |
744a9719 | 673 | evsel->handler = perf_inject__sched_stat; |
26a031e1 | 674 | } |
0f0aa5e0 AH |
675 | } else if (inject->itrace_synth_opts.set) { |
676 | session->itrace_synth_opts = &inject->itrace_synth_opts; | |
677 | inject->itrace_synth_opts.inject = true; | |
678 | inject->tool.comm = perf_event__repipe_comm; | |
f3b3614a | 679 | inject->tool.namespaces = perf_event__repipe_namespaces; |
0f0aa5e0 AH |
680 | inject->tool.exit = perf_event__repipe_exit; |
681 | inject->tool.id_index = perf_event__repipe_id_index; | |
682 | inject->tool.auxtrace_info = perf_event__process_auxtrace_info; | |
683 | inject->tool.auxtrace = perf_event__process_auxtrace; | |
73117308 AH |
684 | inject->tool.aux = perf_event__drop_aux; |
685 | inject->tool.itrace_start = perf_event__drop_aux, | |
0f0aa5e0 AH |
686 | inject->tool.ordered_events = true; |
687 | inject->tool.ordering_requires_timestamps = true; | |
688 | /* Allow space in the header for new attributes */ | |
689 | output_data_offset = 4096; | |
f56fb986 AH |
690 | if (inject->strip) |
691 | strip_init(inject); | |
26a031e1 AV |
692 | } |
693 | ||
99fa2984 AH |
694 | if (!inject->itrace_synth_opts.set) |
695 | auxtrace_index__free(&session->auxtrace_index); | |
696 | ||
3406912c | 697 | if (!file_out->is_pipe) |
0f0aa5e0 | 698 | lseek(fd, output_data_offset, SEEK_SET); |
e558a5bd | 699 | |
b7b61cbe | 700 | ret = perf_session__process_events(session); |
bb8d521f DCC |
701 | if (ret) |
702 | return ret; | |
454c407e | 703 | |
3406912c | 704 | if (!file_out->is_pipe) { |
640dad47 | 705 | if (inject->build_ids) |
e38b43c3 AH |
706 | perf_header__set_feat(&session->header, |
707 | HEADER_BUILD_ID); | |
640dad47 AH |
708 | /* |
709 | * Keep all buildids when there is unprocessed AUX data because | |
710 | * it is not known which ones the AUX trace hits. | |
711 | */ | |
712 | if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && | |
713 | inject->have_auxtrace && !inject->itrace_synth_opts.set) | |
714 | dsos__hit_all(session); | |
0f0aa5e0 AH |
715 | /* |
716 | * The AUX areas have been removed and replaced with | |
73117308 AH |
717 | * synthesized hardware events, so clear the feature flag and |
718 | * remove the evsel. | |
0f0aa5e0 | 719 | */ |
051a01b9 | 720 | if (inject->itrace_synth_opts.set) { |
73117308 AH |
721 | struct perf_evsel *evsel; |
722 | ||
0f0aa5e0 AH |
723 | perf_header__clear_feat(&session->header, |
724 | HEADER_AUXTRACE); | |
051a01b9 AH |
725 | if (inject->itrace_synth_opts.last_branch) |
726 | perf_header__set_feat(&session->header, | |
727 | HEADER_BRANCH_STACK); | |
73117308 AH |
728 | evsel = perf_evlist__id2evsel_strict(session->evlist, |
729 | inject->aux_id); | |
730 | if (evsel) { | |
731 | pr_debug("Deleting %s\n", | |
732 | perf_evsel__name(evsel)); | |
733 | perf_evlist__remove(session->evlist, evsel); | |
734 | perf_evsel__delete(evsel); | |
735 | } | |
f56fb986 AH |
736 | if (inject->strip) |
737 | strip_fini(inject); | |
051a01b9 | 738 | } |
0f0aa5e0 | 739 | session->header.data_offset = output_data_offset; |
e558a5bd | 740 | session->header.data_size = inject->bytes_written; |
42aa276f | 741 | perf_session__write_header(session, session->evlist, fd, true); |
e558a5bd AV |
742 | } |
743 | ||
454c407e TZ |
744 | return ret; |
745 | } | |
746 | ||
b0ad8ea6 | 747 | int cmd_inject(int argc, const char **argv) |
454c407e | 748 | { |
5ded57ac ACM |
749 | struct perf_inject inject = { |
750 | .tool = { | |
751 | .sample = perf_event__repipe_sample, | |
752 | .mmap = perf_event__repipe, | |
5c5e854b | 753 | .mmap2 = perf_event__repipe, |
5ded57ac ACM |
754 | .comm = perf_event__repipe, |
755 | .fork = perf_event__repipe, | |
756 | .exit = perf_event__repipe, | |
757 | .lost = perf_event__repipe, | |
d8145b3e | 758 | .lost_samples = perf_event__repipe, |
4a96f7a0 | 759 | .aux = perf_event__repipe, |
0ad21f68 | 760 | .itrace_start = perf_event__repipe, |
0286039f | 761 | .context_switch = perf_event__repipe, |
5ded57ac ACM |
762 | .read = perf_event__repipe_sample, |
763 | .throttle = perf_event__repipe, | |
764 | .unthrottle = perf_event__repipe, | |
765 | .attr = perf_event__repipe_attr, | |
47c3d109 | 766 | .tracing_data = perf_event__repipe_op2_synth, |
cd17a9b5 AH |
767 | .auxtrace_info = perf_event__repipe_op2_synth, |
768 | .auxtrace = perf_event__repipe_auxtrace, | |
769 | .auxtrace_error = perf_event__repipe_op2_synth, | |
46bc29b9 | 770 | .time_conv = perf_event__repipe_op2_synth, |
d704ebda | 771 | .finished_round = perf_event__repipe_oe_synth, |
5ded57ac | 772 | .build_id = perf_event__repipe_op2_synth, |
3c659eed | 773 | .id_index = perf_event__repipe_op2_synth, |
e9def1b2 | 774 | .feature = perf_event__repipe_op2_synth, |
5ded57ac | 775 | }, |
e558a5bd | 776 | .input_name = "-", |
26a031e1 | 777 | .samples = LIST_HEAD_INIT(inject.samples), |
3406912c JO |
778 | .output = { |
779 | .path = "-", | |
780 | .mode = PERF_DATA_MODE_WRITE, | |
781 | }, | |
5ded57ac | 782 | }; |
1cb8bdcc NK |
783 | struct perf_data_file file = { |
784 | .mode = PERF_DATA_MODE_READ, | |
785 | }; | |
786 | int ret; | |
787 | ||
9b07e27f | 788 | struct option options[] = { |
5ded57ac ACM |
789 | OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
790 | "Inject build-ids into the output stream"), | |
e558a5bd AV |
791 | OPT_STRING('i', "input", &inject.input_name, "file", |
792 | "input file name"), | |
3406912c | 793 | OPT_STRING('o', "output", &inject.output.path, "file", |
e558a5bd | 794 | "output file name"), |
26a031e1 AV |
795 | OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
796 | "Merge sched-stat and sched-switch for getting events " | |
797 | "where and how long tasks slept"), | |
e12b202f | 798 | #ifdef HAVE_JITDUMP |
9b07e27f | 799 | OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
e12b202f | 800 | #endif |
5ded57ac ACM |
801 | OPT_INCR('v', "verbose", &verbose, |
802 | "be more verbose (show build ids, etc)"), | |
a7a2b8b4 AH |
803 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
804 | "kallsyms pathname"), | |
ccaa474c | 805 | OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), |
0f0aa5e0 AH |
806 | OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
807 | NULL, "opts", "Instruction Tracing options", | |
808 | itrace_parse_synth_opts), | |
f56fb986 AH |
809 | OPT_BOOLEAN(0, "strip", &inject.strip, |
810 | "strip non-synthesized events (use with --itrace)"), | |
5ded57ac ACM |
811 | OPT_END() |
812 | }; | |
002439e8 ACM |
813 | const char * const inject_usage[] = { |
814 | "perf inject [<options>]", | |
815 | NULL | |
816 | }; | |
e12b202f | 817 | #ifndef HAVE_JITDUMP |
9b07e27f SE |
818 | set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
819 | #endif | |
002439e8 | 820 | argc = parse_options(argc, argv, options, inject_usage, 0); |
454c407e TZ |
821 | |
822 | /* | |
823 | * Any (unrecognized) arguments left? | |
824 | */ | |
825 | if (argc) | |
002439e8 | 826 | usage_with_options(inject_usage, options); |
454c407e | 827 | |
f56fb986 AH |
828 | if (inject.strip && !inject.itrace_synth_opts.set) { |
829 | pr_err("--strip option requires --itrace option\n"); | |
830 | return -1; | |
831 | } | |
832 | ||
3406912c JO |
833 | if (perf_data_file__open(&inject.output)) { |
834 | perror("failed to create output file"); | |
835 | return -1; | |
e558a5bd AV |
836 | } |
837 | ||
b7b61cbe ACM |
838 | inject.tool.ordered_events = inject.sched_stat; |
839 | ||
1cb8bdcc NK |
840 | file.path = inject.input_name; |
841 | inject.session = perf_session__new(&file, true, &inject.tool); | |
842 | if (inject.session == NULL) | |
52e02834 | 843 | return -1; |
1cb8bdcc | 844 | |
921f3fad ACM |
845 | if (inject.build_ids) { |
846 | /* | |
847 | * to make sure the mmap records are ordered correctly | |
848 | * and so that the correct especially due to jitted code | |
849 | * mmaps. We cannot generate the buildid hit list and | |
850 | * inject the jit mmaps at the same time for now. | |
851 | */ | |
852 | inject.tool.ordered_events = true; | |
853 | inject.tool.ordering_requires_timestamps = true; | |
854 | } | |
e12b202f | 855 | #ifdef HAVE_JITDUMP |
9b07e27f | 856 | if (inject.jit_mode) { |
9b07e27f SE |
857 | inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
858 | inject.tool.mmap = perf_event__jit_repipe_mmap; | |
859 | inject.tool.ordered_events = true; | |
860 | inject.tool.ordering_requires_timestamps = true; | |
861 | /* | |
862 | * JIT MMAP injection injects all MMAP events in one go, so it | |
863 | * does not obey finished_round semantics. | |
864 | */ | |
865 | inject.tool.finished_round = perf_event__drop_oe; | |
866 | } | |
867 | #endif | |
9fedfb0c TS |
868 | ret = symbol__init(&inject.session->header.env); |
869 | if (ret < 0) | |
870 | goto out_delete; | |
454c407e | 871 | |
1cb8bdcc NK |
872 | ret = __cmd_inject(&inject); |
873 | ||
9fedfb0c | 874 | out_delete: |
1cb8bdcc | 875 | perf_session__delete(inject.session); |
1cb8bdcc | 876 | return ret; |
454c407e | 877 | } |