Commit | Line | Data |
---|---|---|
454c407e TZ |
1 | /* |
2 | * builtin-inject.c | |
3 | * | |
4 | * Builtin inject command: Examine the live mode (stdin) event stream | |
5 | * and repipe it to stdout while optionally injecting additional | |
6 | * events into it. | |
7 | */ | |
8 | #include "builtin.h" | |
9 | ||
10 | #include "perf.h" | |
26a031e1 AV |
11 | #include "util/color.h" |
12 | #include "util/evlist.h" | |
13 | #include "util/evsel.h" | |
454c407e | 14 | #include "util/session.h" |
45694aa7 | 15 | #include "util/tool.h" |
454c407e | 16 | #include "util/debug.h" |
54a3cf59 | 17 | #include "util/build-id.h" |
f5fc1412 | 18 | #include "util/data.h" |
0f0aa5e0 | 19 | #include "util/auxtrace.h" |
9b07e27f | 20 | #include "util/jit.h" |
454c407e | 21 | |
4b6ab94e | 22 | #include <subcmd/parse-options.h> |
454c407e | 23 | |
26a031e1 | 24 | #include <linux/list.h> |
a43783ae | 25 | #include <errno.h> |
26a031e1 | 26 | |
5ded57ac | 27 | struct perf_inject { |
3406912c | 28 | struct perf_tool tool; |
1cb8bdcc | 29 | struct perf_session *session; |
3406912c JO |
30 | bool build_ids; |
31 | bool sched_stat; | |
cd10b289 | 32 | bool have_auxtrace; |
f56fb986 | 33 | bool strip; |
9b07e27f | 34 | bool jit_mode; |
3406912c JO |
35 | const char *input_name; |
36 | struct perf_data_file output; | |
37 | u64 bytes_written; | |
73117308 | 38 | u64 aux_id; |
3406912c | 39 | struct list_head samples; |
0f0aa5e0 | 40 | struct itrace_synth_opts itrace_synth_opts; |
26a031e1 AV |
41 | }; |
42 | ||
43 | struct event_entry { | |
44 | struct list_head node; | |
45 | u32 tid; | |
46 | union perf_event event[0]; | |
5ded57ac | 47 | }; |
454c407e | 48 | |
cd17a9b5 | 49 | static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) |
454c407e | 50 | { |
3406912c | 51 | ssize_t size; |
454c407e | 52 | |
cd17a9b5 | 53 | size = perf_data_file__write(&inject->output, buf, sz); |
3406912c JO |
54 | if (size < 0) |
55 | return -errno; | |
454c407e | 56 | |
3406912c | 57 | inject->bytes_written += size; |
454c407e TZ |
58 | return 0; |
59 | } | |
60 | ||
cd17a9b5 AH |
61 | static int perf_event__repipe_synth(struct perf_tool *tool, |
62 | union perf_event *event) | |
63 | { | |
64 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
65 | tool); | |
66 | ||
67 | return output_bytes(inject, event, event->header.size); | |
68 | } | |
69 | ||
d704ebda ACM |
70 | static int perf_event__repipe_oe_synth(struct perf_tool *tool, |
71 | union perf_event *event, | |
72 | struct ordered_events *oe __maybe_unused) | |
73 | { | |
74 | return perf_event__repipe_synth(tool, event); | |
75 | } | |
76 | ||
e12b202f | 77 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
78 | static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused, |
79 | union perf_event *event __maybe_unused, | |
80 | struct ordered_events *oe __maybe_unused) | |
81 | { | |
82 | return 0; | |
83 | } | |
84 | #endif | |
85 | ||
45694aa7 | 86 | static int perf_event__repipe_op2_synth(struct perf_tool *tool, |
743eb868 | 87 | union perf_event *event, |
1d037ca1 IT |
88 | struct perf_session *session |
89 | __maybe_unused) | |
743eb868 | 90 | { |
63c2c9f8 | 91 | return perf_event__repipe_synth(tool, event); |
743eb868 ACM |
92 | } |
93 | ||
47c3d109 AH |
94 | static int perf_event__repipe_attr(struct perf_tool *tool, |
95 | union perf_event *event, | |
96 | struct perf_evlist **pevlist) | |
10d0f086 | 97 | { |
89c97d93 AH |
98 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
99 | tool); | |
1a1ed1ba | 100 | int ret; |
47c3d109 AH |
101 | |
102 | ret = perf_event__process_attr(tool, event, pevlist); | |
1a1ed1ba SE |
103 | if (ret) |
104 | return ret; | |
105 | ||
a261e4a0 | 106 | if (!inject->output.is_pipe) |
89c97d93 AH |
107 | return 0; |
108 | ||
47c3d109 | 109 | return perf_event__repipe_synth(tool, event); |
10d0f086 ACM |
110 | } |
111 | ||
e31f0d01 AH |
112 | #ifdef HAVE_AUXTRACE_SUPPORT |
113 | ||
114 | static int copy_bytes(struct perf_inject *inject, int fd, off_t size) | |
115 | { | |
116 | char buf[4096]; | |
117 | ssize_t ssz; | |
118 | int ret; | |
119 | ||
120 | while (size > 0) { | |
121 | ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); | |
122 | if (ssz < 0) | |
123 | return -errno; | |
124 | ret = output_bytes(inject, buf, ssz); | |
125 | if (ret) | |
126 | return ret; | |
127 | size -= ssz; | |
128 | } | |
129 | ||
130 | return 0; | |
131 | } | |
132 | ||
cd17a9b5 AH |
133 | static s64 perf_event__repipe_auxtrace(struct perf_tool *tool, |
134 | union perf_event *event, | |
b8f8eb84 | 135 | struct perf_session *session) |
cd17a9b5 AH |
136 | { |
137 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
138 | tool); | |
139 | int ret; | |
140 | ||
cd10b289 AH |
141 | inject->have_auxtrace = true; |
142 | ||
99fa2984 AH |
143 | if (!inject->output.is_pipe) { |
144 | off_t offset; | |
145 | ||
146 | offset = lseek(inject->output.fd, 0, SEEK_CUR); | |
147 | if (offset == -1) | |
148 | return -errno; | |
149 | ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, | |
150 | event, offset); | |
151 | if (ret < 0) | |
152 | return ret; | |
153 | } | |
154 | ||
cd17a9b5 AH |
155 | if (perf_data_file__is_pipe(session->file) || !session->one_mmap) { |
156 | ret = output_bytes(inject, event, event->header.size); | |
157 | if (ret < 0) | |
158 | return ret; | |
159 | ret = copy_bytes(inject, perf_data_file__fd(session->file), | |
160 | event->auxtrace.size); | |
161 | } else { | |
162 | ret = output_bytes(inject, event, | |
163 | event->header.size + event->auxtrace.size); | |
164 | } | |
165 | if (ret < 0) | |
166 | return ret; | |
167 | ||
168 | return event->auxtrace.size; | |
169 | } | |
170 | ||
e31f0d01 AH |
171 | #else |
172 | ||
173 | static s64 | |
174 | perf_event__repipe_auxtrace(struct perf_tool *tool __maybe_unused, | |
175 | union perf_event *event __maybe_unused, | |
176 | struct perf_session *session __maybe_unused) | |
177 | { | |
178 | pr_err("AUX area tracing not supported\n"); | |
179 | return -EINVAL; | |
180 | } | |
181 | ||
182 | #endif | |
183 | ||
45694aa7 | 184 | static int perf_event__repipe(struct perf_tool *tool, |
d20deb64 | 185 | union perf_event *event, |
1d037ca1 | 186 | struct perf_sample *sample __maybe_unused, |
63c2c9f8 | 187 | struct machine *machine __maybe_unused) |
640c03ce | 188 | { |
63c2c9f8 | 189 | return perf_event__repipe_synth(tool, event); |
640c03ce ACM |
190 | } |
191 | ||
f56fb986 AH |
192 | static int perf_event__drop(struct perf_tool *tool __maybe_unused, |
193 | union perf_event *event __maybe_unused, | |
194 | struct perf_sample *sample __maybe_unused, | |
195 | struct machine *machine __maybe_unused) | |
196 | { | |
197 | return 0; | |
198 | } | |
199 | ||
73117308 AH |
200 | static int perf_event__drop_aux(struct perf_tool *tool, |
201 | union perf_event *event __maybe_unused, | |
202 | struct perf_sample *sample, | |
203 | struct machine *machine __maybe_unused) | |
204 | { | |
205 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
206 | ||
207 | if (!inject->aux_id) | |
208 | inject->aux_id = sample->id; | |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
26a031e1 AV |
213 | typedef int (*inject_handler)(struct perf_tool *tool, |
214 | union perf_event *event, | |
215 | struct perf_sample *sample, | |
216 | struct perf_evsel *evsel, | |
217 | struct machine *machine); | |
218 | ||
45694aa7 | 219 | static int perf_event__repipe_sample(struct perf_tool *tool, |
d20deb64 | 220 | union perf_event *event, |
26a031e1 AV |
221 | struct perf_sample *sample, |
222 | struct perf_evsel *evsel, | |
223 | struct machine *machine) | |
9e69c210 | 224 | { |
744a9719 ACM |
225 | if (evsel->handler) { |
226 | inject_handler f = evsel->handler; | |
26a031e1 AV |
227 | return f(tool, event, sample, evsel, machine); |
228 | } | |
229 | ||
54a3cf59 AV |
230 | build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
231 | ||
63c2c9f8 | 232 | return perf_event__repipe_synth(tool, event); |
9e69c210 ACM |
233 | } |
234 | ||
45694aa7 | 235 | static int perf_event__repipe_mmap(struct perf_tool *tool, |
d20deb64 | 236 | union perf_event *event, |
8115d60c | 237 | struct perf_sample *sample, |
743eb868 | 238 | struct machine *machine) |
454c407e TZ |
239 | { |
240 | int err; | |
241 | ||
45694aa7 ACM |
242 | err = perf_event__process_mmap(tool, event, sample, machine); |
243 | perf_event__repipe(tool, event, sample, machine); | |
454c407e TZ |
244 | |
245 | return err; | |
246 | } | |
247 | ||
e12b202f | 248 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
249 | static int perf_event__jit_repipe_mmap(struct perf_tool *tool, |
250 | union perf_event *event, | |
251 | struct perf_sample *sample, | |
252 | struct machine *machine) | |
253 | { | |
254 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
255 | u64 n = 0; | |
570735b3 | 256 | int ret; |
9b07e27f SE |
257 | |
258 | /* | |
259 | * if jit marker, then inject jit mmaps and generate ELF images | |
260 | */ | |
570735b3 AH |
261 | ret = jit_process(inject->session, &inject->output, machine, |
262 | event->mmap.filename, sample->pid, &n); | |
263 | if (ret < 0) | |
264 | return ret; | |
265 | if (ret) { | |
9b07e27f SE |
266 | inject->bytes_written += n; |
267 | return 0; | |
268 | } | |
269 | return perf_event__repipe_mmap(tool, event, sample, machine); | |
270 | } | |
271 | #endif | |
272 | ||
5c5e854b SE |
273 | static int perf_event__repipe_mmap2(struct perf_tool *tool, |
274 | union perf_event *event, | |
275 | struct perf_sample *sample, | |
276 | struct machine *machine) | |
277 | { | |
278 | int err; | |
279 | ||
280 | err = perf_event__process_mmap2(tool, event, sample, machine); | |
281 | perf_event__repipe(tool, event, sample, machine); | |
282 | ||
283 | return err; | |
284 | } | |
285 | ||
e12b202f | 286 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
287 | static int perf_event__jit_repipe_mmap2(struct perf_tool *tool, |
288 | union perf_event *event, | |
289 | struct perf_sample *sample, | |
290 | struct machine *machine) | |
291 | { | |
292 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
293 | u64 n = 0; | |
570735b3 | 294 | int ret; |
9b07e27f SE |
295 | |
296 | /* | |
297 | * if jit marker, then inject jit mmaps and generate ELF images | |
298 | */ | |
570735b3 AH |
299 | ret = jit_process(inject->session, &inject->output, machine, |
300 | event->mmap2.filename, sample->pid, &n); | |
301 | if (ret < 0) | |
302 | return ret; | |
303 | if (ret) { | |
9b07e27f SE |
304 | inject->bytes_written += n; |
305 | return 0; | |
306 | } | |
307 | return perf_event__repipe_mmap2(tool, event, sample, machine); | |
308 | } | |
309 | #endif | |
310 | ||
f62d3f0f | 311 | static int perf_event__repipe_fork(struct perf_tool *tool, |
d20deb64 | 312 | union perf_event *event, |
8115d60c | 313 | struct perf_sample *sample, |
743eb868 | 314 | struct machine *machine) |
454c407e TZ |
315 | { |
316 | int err; | |
317 | ||
f62d3f0f | 318 | err = perf_event__process_fork(tool, event, sample, machine); |
45694aa7 | 319 | perf_event__repipe(tool, event, sample, machine); |
454c407e TZ |
320 | |
321 | return err; | |
322 | } | |
323 | ||
0f0aa5e0 AH |
324 | static int perf_event__repipe_comm(struct perf_tool *tool, |
325 | union perf_event *event, | |
326 | struct perf_sample *sample, | |
327 | struct machine *machine) | |
328 | { | |
329 | int err; | |
330 | ||
331 | err = perf_event__process_comm(tool, event, sample, machine); | |
332 | perf_event__repipe(tool, event, sample, machine); | |
333 | ||
334 | return err; | |
335 | } | |
336 | ||
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 | ||
47c3d109 AH |
362 | static int perf_event__repipe_tracing_data(struct perf_tool *tool, |
363 | union perf_event *event, | |
8115d60c | 364 | struct perf_session *session) |
454c407e TZ |
365 | { |
366 | int err; | |
367 | ||
47c3d109 AH |
368 | perf_event__repipe_synth(tool, event); |
369 | err = perf_event__process_tracing_data(tool, event, session); | |
454c407e TZ |
370 | |
371 | return err; | |
372 | } | |
373 | ||
0f0aa5e0 AH |
374 | static int perf_event__repipe_id_index(struct perf_tool *tool, |
375 | union perf_event *event, | |
376 | struct perf_session *session) | |
377 | { | |
378 | int err; | |
379 | ||
380 | perf_event__repipe_synth(tool, event); | |
381 | err = perf_event__process_id_index(tool, event, session); | |
382 | ||
383 | return err; | |
384 | } | |
385 | ||
c824c433 | 386 | static int dso__read_build_id(struct dso *dso) |
454c407e | 387 | { |
c824c433 | 388 | if (dso->has_build_id) |
090f7204 | 389 | return 0; |
454c407e | 390 | |
c824c433 ACM |
391 | if (filename__read_build_id(dso->long_name, dso->build_id, |
392 | sizeof(dso->build_id)) > 0) { | |
393 | dso->has_build_id = true; | |
090f7204 ACM |
394 | return 0; |
395 | } | |
454c407e | 396 | |
090f7204 ACM |
397 | return -1; |
398 | } | |
454c407e | 399 | |
c824c433 | 400 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
743eb868 | 401 | struct machine *machine) |
090f7204 ACM |
402 | { |
403 | u16 misc = PERF_RECORD_MISC_USER; | |
090f7204 | 404 | int err; |
454c407e | 405 | |
c824c433 ACM |
406 | if (dso__read_build_id(dso) < 0) { |
407 | pr_debug("no build_id found for %s\n", dso->long_name); | |
090f7204 ACM |
408 | return -1; |
409 | } | |
454c407e | 410 | |
c824c433 | 411 | if (dso->kernel) |
090f7204 | 412 | misc = PERF_RECORD_MISC_KERNEL; |
454c407e | 413 | |
c824c433 | 414 | err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe, |
743eb868 | 415 | machine); |
090f7204 | 416 | if (err) { |
c824c433 | 417 | pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
454c407e TZ |
418 | return -1; |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
45694aa7 | 424 | static int perf_event__inject_buildid(struct perf_tool *tool, |
d20deb64 | 425 | union perf_event *event, |
8115d60c | 426 | struct perf_sample *sample, |
1d037ca1 | 427 | struct perf_evsel *evsel __maybe_unused, |
743eb868 | 428 | struct machine *machine) |
454c407e TZ |
429 | { |
430 | struct addr_location al; | |
431 | struct thread *thread; | |
454c407e | 432 | |
13ce34df | 433 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
454c407e TZ |
434 | if (thread == NULL) { |
435 | pr_err("problem processing %d event, skipping it.\n", | |
436 | event->header.type); | |
454c407e TZ |
437 | goto repipe; |
438 | } | |
439 | ||
473398a2 | 440 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al); |
454c407e TZ |
441 | |
442 | if (al.map != NULL) { | |
443 | if (!al.map->dso->hit) { | |
444 | al.map->dso->hit = 1; | |
be39db9f | 445 | if (map__load(al.map) >= 0) { |
45694aa7 | 446 | dso__inject_build_id(al.map->dso, tool, machine); |
090f7204 ACM |
447 | /* |
448 | * If this fails, too bad, let the other side | |
449 | * account this as unresolved. | |
450 | */ | |
393be2e3 | 451 | } else { |
89fe808a | 452 | #ifdef HAVE_LIBELF_SUPPORT |
454c407e TZ |
453 | pr_warning("no symbols found in %s, maybe " |
454 | "install a debug package?\n", | |
455 | al.map->dso->long_name); | |
393be2e3 NK |
456 | #endif |
457 | } | |
454c407e TZ |
458 | } |
459 | } | |
460 | ||
b91fc39f | 461 | thread__put(thread); |
454c407e | 462 | repipe: |
45694aa7 | 463 | perf_event__repipe(tool, event, sample, machine); |
090f7204 | 464 | return 0; |
454c407e TZ |
465 | } |
466 | ||
26a031e1 AV |
467 | static int perf_inject__sched_process_exit(struct perf_tool *tool, |
468 | union perf_event *event __maybe_unused, | |
469 | struct perf_sample *sample, | |
470 | struct perf_evsel *evsel __maybe_unused, | |
471 | struct machine *machine __maybe_unused) | |
472 | { | |
473 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
474 | struct event_entry *ent; | |
475 | ||
476 | list_for_each_entry(ent, &inject->samples, node) { | |
477 | if (sample->tid == ent->tid) { | |
478 | list_del_init(&ent->node); | |
479 | free(ent); | |
480 | break; | |
481 | } | |
482 | } | |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
487 | static int perf_inject__sched_switch(struct perf_tool *tool, | |
488 | union perf_event *event, | |
489 | struct perf_sample *sample, | |
490 | struct perf_evsel *evsel, | |
491 | struct machine *machine) | |
492 | { | |
493 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
494 | struct event_entry *ent; | |
495 | ||
496 | perf_inject__sched_process_exit(tool, event, sample, evsel, machine); | |
497 | ||
498 | ent = malloc(event->header.size + sizeof(struct event_entry)); | |
499 | if (ent == NULL) { | |
500 | color_fprintf(stderr, PERF_COLOR_RED, | |
501 | "Not enough memory to process sched switch event!"); | |
502 | return -1; | |
503 | } | |
504 | ||
505 | ent->tid = sample->tid; | |
506 | memcpy(&ent->event, event, event->header.size); | |
507 | list_add(&ent->node, &inject->samples); | |
508 | return 0; | |
509 | } | |
510 | ||
511 | static int perf_inject__sched_stat(struct perf_tool *tool, | |
512 | union perf_event *event __maybe_unused, | |
513 | struct perf_sample *sample, | |
514 | struct perf_evsel *evsel, | |
515 | struct machine *machine) | |
516 | { | |
517 | struct event_entry *ent; | |
518 | union perf_event *event_sw; | |
519 | struct perf_sample sample_sw; | |
520 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
521 | u32 pid = perf_evsel__intval(evsel, sample, "pid"); | |
522 | ||
523 | list_for_each_entry(ent, &inject->samples, node) { | |
524 | if (pid == ent->tid) | |
525 | goto found; | |
526 | } | |
527 | ||
528 | return 0; | |
529 | found: | |
530 | event_sw = &ent->event[0]; | |
531 | perf_evsel__parse_sample(evsel, event_sw, &sample_sw); | |
532 | ||
533 | sample_sw.period = sample->period; | |
534 | sample_sw.time = sample->time; | |
535 | perf_event__synthesize_sample(event_sw, evsel->attr.sample_type, | |
d03f2170 AH |
536 | evsel->attr.read_format, &sample_sw, |
537 | false); | |
54a3cf59 | 538 | build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
26a031e1 AV |
539 | return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
540 | } | |
541 | ||
1d037ca1 | 542 | static void sig_handler(int sig __maybe_unused) |
454c407e TZ |
543 | { |
544 | session_done = 1; | |
545 | } | |
546 | ||
26a031e1 AV |
547 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
548 | u64 sample_type, const char *sample_msg) | |
549 | { | |
550 | struct perf_event_attr *attr = &evsel->attr; | |
551 | const char *name = perf_evsel__name(evsel); | |
552 | ||
553 | if (!(attr->sample_type & sample_type)) { | |
554 | pr_err("Samples for %s event do not have %s attribute set.", | |
555 | name, sample_msg); | |
556 | return -EINVAL; | |
557 | } | |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
f56fb986 AH |
562 | static int drop_sample(struct perf_tool *tool __maybe_unused, |
563 | union perf_event *event __maybe_unused, | |
564 | struct perf_sample *sample __maybe_unused, | |
565 | struct perf_evsel *evsel __maybe_unused, | |
566 | struct machine *machine __maybe_unused) | |
567 | { | |
568 | return 0; | |
569 | } | |
570 | ||
571 | static void strip_init(struct perf_inject *inject) | |
572 | { | |
573 | struct perf_evlist *evlist = inject->session->evlist; | |
574 | struct perf_evsel *evsel; | |
575 | ||
576 | inject->tool.context_switch = perf_event__drop; | |
577 | ||
e5cadb93 | 578 | evlist__for_each_entry(evlist, evsel) |
f56fb986 AH |
579 | evsel->handler = drop_sample; |
580 | } | |
581 | ||
582 | static bool has_tracking(struct perf_evsel *evsel) | |
583 | { | |
584 | return evsel->attr.mmap || evsel->attr.mmap2 || evsel->attr.comm || | |
585 | evsel->attr.task; | |
586 | } | |
587 | ||
588 | #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \ | |
589 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER) | |
590 | ||
591 | /* | |
592 | * In order that the perf.data file is parsable, tracking events like MMAP need | |
593 | * their selected event to exist, except if there is only 1 selected event left | |
594 | * and it has a compatible sample type. | |
595 | */ | |
596 | static bool ok_to_remove(struct perf_evlist *evlist, | |
597 | struct perf_evsel *evsel_to_remove) | |
598 | { | |
599 | struct perf_evsel *evsel; | |
600 | int cnt = 0; | |
601 | bool ok = false; | |
602 | ||
603 | if (!has_tracking(evsel_to_remove)) | |
604 | return true; | |
605 | ||
e5cadb93 | 606 | evlist__for_each_entry(evlist, evsel) { |
f56fb986 AH |
607 | if (evsel->handler != drop_sample) { |
608 | cnt += 1; | |
609 | if ((evsel->attr.sample_type & COMPAT_MASK) == | |
610 | (evsel_to_remove->attr.sample_type & COMPAT_MASK)) | |
611 | ok = true; | |
612 | } | |
613 | } | |
614 | ||
615 | return ok && cnt == 1; | |
616 | } | |
617 | ||
618 | static void strip_fini(struct perf_inject *inject) | |
619 | { | |
620 | struct perf_evlist *evlist = inject->session->evlist; | |
621 | struct perf_evsel *evsel, *tmp; | |
622 | ||
623 | /* Remove non-synthesized evsels if possible */ | |
e5cadb93 | 624 | evlist__for_each_entry_safe(evlist, tmp, evsel) { |
f56fb986 AH |
625 | if (evsel->handler == drop_sample && |
626 | ok_to_remove(evlist, evsel)) { | |
627 | pr_debug("Deleting %s\n", perf_evsel__name(evsel)); | |
628 | perf_evlist__remove(evlist, evsel); | |
629 | perf_evsel__delete(evsel); | |
630 | } | |
631 | } | |
632 | } | |
633 | ||
5ded57ac | 634 | static int __cmd_inject(struct perf_inject *inject) |
454c407e | 635 | { |
454c407e | 636 | int ret = -EINVAL; |
1cb8bdcc | 637 | struct perf_session *session = inject->session; |
3406912c | 638 | struct perf_data_file *file_out = &inject->output; |
42aa276f | 639 | int fd = perf_data_file__fd(file_out); |
0f0aa5e0 | 640 | u64 output_data_offset; |
454c407e TZ |
641 | |
642 | signal(SIGINT, sig_handler); | |
643 | ||
0f0aa5e0 AH |
644 | if (inject->build_ids || inject->sched_stat || |
645 | inject->itrace_synth_opts.set) { | |
5ded57ac | 646 | inject->tool.mmap = perf_event__repipe_mmap; |
5c5e854b | 647 | inject->tool.mmap2 = perf_event__repipe_mmap2; |
f62d3f0f | 648 | inject->tool.fork = perf_event__repipe_fork; |
5ded57ac | 649 | inject->tool.tracing_data = perf_event__repipe_tracing_data; |
454c407e TZ |
650 | } |
651 | ||
0f0aa5e0 AH |
652 | output_data_offset = session->header.data_offset; |
653 | ||
54a3cf59 AV |
654 | if (inject->build_ids) { |
655 | inject->tool.sample = perf_event__inject_buildid; | |
656 | } else if (inject->sched_stat) { | |
26a031e1 AV |
657 | struct perf_evsel *evsel; |
658 | ||
e5cadb93 | 659 | evlist__for_each_entry(session->evlist, evsel) { |
26a031e1 AV |
660 | const char *name = perf_evsel__name(evsel); |
661 | ||
662 | if (!strcmp(name, "sched:sched_switch")) { | |
663 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) | |
664 | return -EINVAL; | |
665 | ||
744a9719 | 666 | evsel->handler = perf_inject__sched_switch; |
26a031e1 | 667 | } else if (!strcmp(name, "sched:sched_process_exit")) |
744a9719 | 668 | evsel->handler = perf_inject__sched_process_exit; |
26a031e1 | 669 | else if (!strncmp(name, "sched:sched_stat_", 17)) |
744a9719 | 670 | evsel->handler = perf_inject__sched_stat; |
26a031e1 | 671 | } |
0f0aa5e0 AH |
672 | } else if (inject->itrace_synth_opts.set) { |
673 | session->itrace_synth_opts = &inject->itrace_synth_opts; | |
674 | inject->itrace_synth_opts.inject = true; | |
675 | inject->tool.comm = perf_event__repipe_comm; | |
f3b3614a | 676 | inject->tool.namespaces = perf_event__repipe_namespaces; |
0f0aa5e0 AH |
677 | inject->tool.exit = perf_event__repipe_exit; |
678 | inject->tool.id_index = perf_event__repipe_id_index; | |
679 | inject->tool.auxtrace_info = perf_event__process_auxtrace_info; | |
680 | inject->tool.auxtrace = perf_event__process_auxtrace; | |
73117308 AH |
681 | inject->tool.aux = perf_event__drop_aux; |
682 | inject->tool.itrace_start = perf_event__drop_aux, | |
0f0aa5e0 AH |
683 | inject->tool.ordered_events = true; |
684 | inject->tool.ordering_requires_timestamps = true; | |
685 | /* Allow space in the header for new attributes */ | |
686 | output_data_offset = 4096; | |
f56fb986 AH |
687 | if (inject->strip) |
688 | strip_init(inject); | |
26a031e1 AV |
689 | } |
690 | ||
99fa2984 AH |
691 | if (!inject->itrace_synth_opts.set) |
692 | auxtrace_index__free(&session->auxtrace_index); | |
693 | ||
3406912c | 694 | if (!file_out->is_pipe) |
0f0aa5e0 | 695 | lseek(fd, output_data_offset, SEEK_SET); |
e558a5bd | 696 | |
b7b61cbe | 697 | ret = perf_session__process_events(session); |
bb8d521f DCC |
698 | if (ret) |
699 | return ret; | |
454c407e | 700 | |
3406912c | 701 | if (!file_out->is_pipe) { |
640dad47 | 702 | if (inject->build_ids) |
e38b43c3 AH |
703 | perf_header__set_feat(&session->header, |
704 | HEADER_BUILD_ID); | |
640dad47 AH |
705 | /* |
706 | * Keep all buildids when there is unprocessed AUX data because | |
707 | * it is not known which ones the AUX trace hits. | |
708 | */ | |
709 | if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && | |
710 | inject->have_auxtrace && !inject->itrace_synth_opts.set) | |
711 | dsos__hit_all(session); | |
0f0aa5e0 AH |
712 | /* |
713 | * The AUX areas have been removed and replaced with | |
73117308 AH |
714 | * synthesized hardware events, so clear the feature flag and |
715 | * remove the evsel. | |
0f0aa5e0 | 716 | */ |
051a01b9 | 717 | if (inject->itrace_synth_opts.set) { |
73117308 AH |
718 | struct perf_evsel *evsel; |
719 | ||
0f0aa5e0 AH |
720 | perf_header__clear_feat(&session->header, |
721 | HEADER_AUXTRACE); | |
051a01b9 AH |
722 | if (inject->itrace_synth_opts.last_branch) |
723 | perf_header__set_feat(&session->header, | |
724 | HEADER_BRANCH_STACK); | |
73117308 AH |
725 | evsel = perf_evlist__id2evsel_strict(session->evlist, |
726 | inject->aux_id); | |
727 | if (evsel) { | |
728 | pr_debug("Deleting %s\n", | |
729 | perf_evsel__name(evsel)); | |
730 | perf_evlist__remove(session->evlist, evsel); | |
731 | perf_evsel__delete(evsel); | |
732 | } | |
f56fb986 AH |
733 | if (inject->strip) |
734 | strip_fini(inject); | |
051a01b9 | 735 | } |
0f0aa5e0 | 736 | session->header.data_offset = output_data_offset; |
e558a5bd | 737 | session->header.data_size = inject->bytes_written; |
42aa276f | 738 | perf_session__write_header(session, session->evlist, fd, true); |
e558a5bd AV |
739 | } |
740 | ||
454c407e TZ |
741 | return ret; |
742 | } | |
743 | ||
b0ad8ea6 | 744 | int cmd_inject(int argc, const char **argv) |
454c407e | 745 | { |
5ded57ac ACM |
746 | struct perf_inject inject = { |
747 | .tool = { | |
748 | .sample = perf_event__repipe_sample, | |
749 | .mmap = perf_event__repipe, | |
5c5e854b | 750 | .mmap2 = perf_event__repipe, |
5ded57ac ACM |
751 | .comm = perf_event__repipe, |
752 | .fork = perf_event__repipe, | |
753 | .exit = perf_event__repipe, | |
754 | .lost = perf_event__repipe, | |
d8145b3e | 755 | .lost_samples = perf_event__repipe, |
4a96f7a0 | 756 | .aux = perf_event__repipe, |
0ad21f68 | 757 | .itrace_start = perf_event__repipe, |
0286039f | 758 | .context_switch = perf_event__repipe, |
5ded57ac ACM |
759 | .read = perf_event__repipe_sample, |
760 | .throttle = perf_event__repipe, | |
761 | .unthrottle = perf_event__repipe, | |
762 | .attr = perf_event__repipe_attr, | |
47c3d109 | 763 | .tracing_data = perf_event__repipe_op2_synth, |
cd17a9b5 AH |
764 | .auxtrace_info = perf_event__repipe_op2_synth, |
765 | .auxtrace = perf_event__repipe_auxtrace, | |
766 | .auxtrace_error = perf_event__repipe_op2_synth, | |
46bc29b9 | 767 | .time_conv = perf_event__repipe_op2_synth, |
d704ebda | 768 | .finished_round = perf_event__repipe_oe_synth, |
5ded57ac | 769 | .build_id = perf_event__repipe_op2_synth, |
3c659eed | 770 | .id_index = perf_event__repipe_op2_synth, |
5ded57ac | 771 | }, |
e558a5bd | 772 | .input_name = "-", |
26a031e1 | 773 | .samples = LIST_HEAD_INIT(inject.samples), |
3406912c JO |
774 | .output = { |
775 | .path = "-", | |
776 | .mode = PERF_DATA_MODE_WRITE, | |
777 | }, | |
5ded57ac | 778 | }; |
1cb8bdcc NK |
779 | struct perf_data_file file = { |
780 | .mode = PERF_DATA_MODE_READ, | |
781 | }; | |
782 | int ret; | |
783 | ||
9b07e27f | 784 | struct option options[] = { |
5ded57ac ACM |
785 | OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
786 | "Inject build-ids into the output stream"), | |
e558a5bd AV |
787 | OPT_STRING('i', "input", &inject.input_name, "file", |
788 | "input file name"), | |
3406912c | 789 | OPT_STRING('o', "output", &inject.output.path, "file", |
e558a5bd | 790 | "output file name"), |
26a031e1 AV |
791 | OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
792 | "Merge sched-stat and sched-switch for getting events " | |
793 | "where and how long tasks slept"), | |
e12b202f | 794 | #ifdef HAVE_JITDUMP |
9b07e27f | 795 | OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
e12b202f | 796 | #endif |
5ded57ac ACM |
797 | OPT_INCR('v', "verbose", &verbose, |
798 | "be more verbose (show build ids, etc)"), | |
a7a2b8b4 AH |
799 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
800 | "kallsyms pathname"), | |
ccaa474c | 801 | OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), |
0f0aa5e0 AH |
802 | OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
803 | NULL, "opts", "Instruction Tracing options", | |
804 | itrace_parse_synth_opts), | |
f56fb986 AH |
805 | OPT_BOOLEAN(0, "strip", &inject.strip, |
806 | "strip non-synthesized events (use with --itrace)"), | |
5ded57ac ACM |
807 | OPT_END() |
808 | }; | |
002439e8 ACM |
809 | const char * const inject_usage[] = { |
810 | "perf inject [<options>]", | |
811 | NULL | |
812 | }; | |
e12b202f | 813 | #ifndef HAVE_JITDUMP |
9b07e27f SE |
814 | set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
815 | #endif | |
002439e8 | 816 | argc = parse_options(argc, argv, options, inject_usage, 0); |
454c407e TZ |
817 | |
818 | /* | |
819 | * Any (unrecognized) arguments left? | |
820 | */ | |
821 | if (argc) | |
002439e8 | 822 | usage_with_options(inject_usage, options); |
454c407e | 823 | |
f56fb986 AH |
824 | if (inject.strip && !inject.itrace_synth_opts.set) { |
825 | pr_err("--strip option requires --itrace option\n"); | |
826 | return -1; | |
827 | } | |
828 | ||
3406912c JO |
829 | if (perf_data_file__open(&inject.output)) { |
830 | perror("failed to create output file"); | |
831 | return -1; | |
e558a5bd AV |
832 | } |
833 | ||
b7b61cbe ACM |
834 | inject.tool.ordered_events = inject.sched_stat; |
835 | ||
1cb8bdcc NK |
836 | file.path = inject.input_name; |
837 | inject.session = perf_session__new(&file, true, &inject.tool); | |
838 | if (inject.session == NULL) | |
52e02834 | 839 | return -1; |
1cb8bdcc | 840 | |
921f3fad ACM |
841 | if (inject.build_ids) { |
842 | /* | |
843 | * to make sure the mmap records are ordered correctly | |
844 | * and so that the correct especially due to jitted code | |
845 | * mmaps. We cannot generate the buildid hit list and | |
846 | * inject the jit mmaps at the same time for now. | |
847 | */ | |
848 | inject.tool.ordered_events = true; | |
849 | inject.tool.ordering_requires_timestamps = true; | |
850 | } | |
e12b202f | 851 | #ifdef HAVE_JITDUMP |
9b07e27f | 852 | if (inject.jit_mode) { |
9b07e27f SE |
853 | inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
854 | inject.tool.mmap = perf_event__jit_repipe_mmap; | |
855 | inject.tool.ordered_events = true; | |
856 | inject.tool.ordering_requires_timestamps = true; | |
857 | /* | |
858 | * JIT MMAP injection injects all MMAP events in one go, so it | |
859 | * does not obey finished_round semantics. | |
860 | */ | |
861 | inject.tool.finished_round = perf_event__drop_oe; | |
862 | } | |
863 | #endif | |
9fedfb0c TS |
864 | ret = symbol__init(&inject.session->header.env); |
865 | if (ret < 0) | |
866 | goto out_delete; | |
454c407e | 867 | |
1cb8bdcc NK |
868 | ret = __cmd_inject(&inject); |
869 | ||
9fedfb0c | 870 | out_delete: |
1cb8bdcc | 871 | perf_session__delete(inject.session); |
1cb8bdcc | 872 | return ret; |
454c407e | 873 | } |