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 AV |
24 | #include <linux/list.h> |
25 | ||
5ded57ac | 26 | struct perf_inject { |
3406912c | 27 | struct perf_tool tool; |
1cb8bdcc | 28 | struct perf_session *session; |
3406912c JO |
29 | bool build_ids; |
30 | bool sched_stat; | |
cd10b289 | 31 | bool have_auxtrace; |
f56fb986 | 32 | bool strip; |
9b07e27f | 33 | bool jit_mode; |
3406912c JO |
34 | const char *input_name; |
35 | struct perf_data_file output; | |
36 | u64 bytes_written; | |
73117308 | 37 | u64 aux_id; |
3406912c | 38 | struct list_head samples; |
0f0aa5e0 | 39 | struct itrace_synth_opts itrace_synth_opts; |
26a031e1 AV |
40 | }; |
41 | ||
42 | struct event_entry { | |
43 | struct list_head node; | |
44 | u32 tid; | |
45 | union perf_event event[0]; | |
5ded57ac | 46 | }; |
454c407e | 47 | |
cd17a9b5 | 48 | static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) |
454c407e | 49 | { |
3406912c | 50 | ssize_t size; |
454c407e | 51 | |
cd17a9b5 | 52 | size = perf_data_file__write(&inject->output, buf, sz); |
3406912c JO |
53 | if (size < 0) |
54 | return -errno; | |
454c407e | 55 | |
3406912c | 56 | inject->bytes_written += size; |
454c407e TZ |
57 | return 0; |
58 | } | |
59 | ||
cd17a9b5 AH |
60 | static int perf_event__repipe_synth(struct perf_tool *tool, |
61 | union perf_event *event) | |
62 | { | |
63 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
64 | tool); | |
65 | ||
66 | return output_bytes(inject, event, event->header.size); | |
67 | } | |
68 | ||
d704ebda ACM |
69 | static int perf_event__repipe_oe_synth(struct perf_tool *tool, |
70 | union perf_event *event, | |
71 | struct ordered_events *oe __maybe_unused) | |
72 | { | |
73 | return perf_event__repipe_synth(tool, event); | |
74 | } | |
75 | ||
e12b202f | 76 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
77 | static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused, |
78 | union perf_event *event __maybe_unused, | |
79 | struct ordered_events *oe __maybe_unused) | |
80 | { | |
81 | return 0; | |
82 | } | |
83 | #endif | |
84 | ||
45694aa7 | 85 | static int perf_event__repipe_op2_synth(struct perf_tool *tool, |
743eb868 | 86 | union perf_event *event, |
1d037ca1 IT |
87 | struct perf_session *session |
88 | __maybe_unused) | |
743eb868 | 89 | { |
63c2c9f8 | 90 | return perf_event__repipe_synth(tool, event); |
743eb868 ACM |
91 | } |
92 | ||
47c3d109 AH |
93 | static int perf_event__repipe_attr(struct perf_tool *tool, |
94 | union perf_event *event, | |
95 | struct perf_evlist **pevlist) | |
10d0f086 | 96 | { |
89c97d93 AH |
97 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
98 | tool); | |
1a1ed1ba | 99 | int ret; |
47c3d109 AH |
100 | |
101 | ret = perf_event__process_attr(tool, event, pevlist); | |
1a1ed1ba SE |
102 | if (ret) |
103 | return ret; | |
104 | ||
a261e4a0 | 105 | if (!inject->output.is_pipe) |
89c97d93 AH |
106 | return 0; |
107 | ||
47c3d109 | 108 | return perf_event__repipe_synth(tool, event); |
10d0f086 ACM |
109 | } |
110 | ||
e31f0d01 AH |
111 | #ifdef HAVE_AUXTRACE_SUPPORT |
112 | ||
113 | static int copy_bytes(struct perf_inject *inject, int fd, off_t size) | |
114 | { | |
115 | char buf[4096]; | |
116 | ssize_t ssz; | |
117 | int ret; | |
118 | ||
119 | while (size > 0) { | |
120 | ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); | |
121 | if (ssz < 0) | |
122 | return -errno; | |
123 | ret = output_bytes(inject, buf, ssz); | |
124 | if (ret) | |
125 | return ret; | |
126 | size -= ssz; | |
127 | } | |
128 | ||
129 | return 0; | |
130 | } | |
131 | ||
cd17a9b5 AH |
132 | static s64 perf_event__repipe_auxtrace(struct perf_tool *tool, |
133 | union perf_event *event, | |
b8f8eb84 | 134 | struct perf_session *session) |
cd17a9b5 AH |
135 | { |
136 | struct perf_inject *inject = container_of(tool, struct perf_inject, | |
137 | tool); | |
138 | int ret; | |
139 | ||
cd10b289 AH |
140 | inject->have_auxtrace = true; |
141 | ||
99fa2984 AH |
142 | if (!inject->output.is_pipe) { |
143 | off_t offset; | |
144 | ||
145 | offset = lseek(inject->output.fd, 0, SEEK_CUR); | |
146 | if (offset == -1) | |
147 | return -errno; | |
148 | ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, | |
149 | event, offset); | |
150 | if (ret < 0) | |
151 | return ret; | |
152 | } | |
153 | ||
cd17a9b5 AH |
154 | if (perf_data_file__is_pipe(session->file) || !session->one_mmap) { |
155 | ret = output_bytes(inject, event, event->header.size); | |
156 | if (ret < 0) | |
157 | return ret; | |
158 | ret = copy_bytes(inject, perf_data_file__fd(session->file), | |
159 | event->auxtrace.size); | |
160 | } else { | |
161 | ret = output_bytes(inject, event, | |
162 | event->header.size + event->auxtrace.size); | |
163 | } | |
164 | if (ret < 0) | |
165 | return ret; | |
166 | ||
167 | return event->auxtrace.size; | |
168 | } | |
169 | ||
e31f0d01 AH |
170 | #else |
171 | ||
172 | static s64 | |
173 | perf_event__repipe_auxtrace(struct perf_tool *tool __maybe_unused, | |
174 | union perf_event *event __maybe_unused, | |
175 | struct perf_session *session __maybe_unused) | |
176 | { | |
177 | pr_err("AUX area tracing not supported\n"); | |
178 | return -EINVAL; | |
179 | } | |
180 | ||
181 | #endif | |
182 | ||
45694aa7 | 183 | static int perf_event__repipe(struct perf_tool *tool, |
d20deb64 | 184 | union perf_event *event, |
1d037ca1 | 185 | struct perf_sample *sample __maybe_unused, |
63c2c9f8 | 186 | struct machine *machine __maybe_unused) |
640c03ce | 187 | { |
63c2c9f8 | 188 | return perf_event__repipe_synth(tool, event); |
640c03ce ACM |
189 | } |
190 | ||
f56fb986 AH |
191 | static int perf_event__drop(struct perf_tool *tool __maybe_unused, |
192 | union perf_event *event __maybe_unused, | |
193 | struct perf_sample *sample __maybe_unused, | |
194 | struct machine *machine __maybe_unused) | |
195 | { | |
196 | return 0; | |
197 | } | |
198 | ||
73117308 AH |
199 | static int perf_event__drop_aux(struct perf_tool *tool, |
200 | union perf_event *event __maybe_unused, | |
201 | struct perf_sample *sample, | |
202 | struct machine *machine __maybe_unused) | |
203 | { | |
204 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
205 | ||
206 | if (!inject->aux_id) | |
207 | inject->aux_id = sample->id; | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
26a031e1 AV |
212 | typedef int (*inject_handler)(struct perf_tool *tool, |
213 | union perf_event *event, | |
214 | struct perf_sample *sample, | |
215 | struct perf_evsel *evsel, | |
216 | struct machine *machine); | |
217 | ||
45694aa7 | 218 | static int perf_event__repipe_sample(struct perf_tool *tool, |
d20deb64 | 219 | union perf_event *event, |
26a031e1 AV |
220 | struct perf_sample *sample, |
221 | struct perf_evsel *evsel, | |
222 | struct machine *machine) | |
9e69c210 | 223 | { |
744a9719 ACM |
224 | if (evsel->handler) { |
225 | inject_handler f = evsel->handler; | |
26a031e1 AV |
226 | return f(tool, event, sample, evsel, machine); |
227 | } | |
228 | ||
54a3cf59 AV |
229 | build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
230 | ||
63c2c9f8 | 231 | return perf_event__repipe_synth(tool, event); |
9e69c210 ACM |
232 | } |
233 | ||
45694aa7 | 234 | static int perf_event__repipe_mmap(struct perf_tool *tool, |
d20deb64 | 235 | union perf_event *event, |
8115d60c | 236 | struct perf_sample *sample, |
743eb868 | 237 | struct machine *machine) |
454c407e TZ |
238 | { |
239 | int err; | |
240 | ||
45694aa7 ACM |
241 | err = perf_event__process_mmap(tool, event, sample, machine); |
242 | perf_event__repipe(tool, event, sample, machine); | |
454c407e TZ |
243 | |
244 | return err; | |
245 | } | |
246 | ||
e12b202f | 247 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
248 | static int perf_event__jit_repipe_mmap(struct perf_tool *tool, |
249 | union perf_event *event, | |
250 | struct perf_sample *sample, | |
251 | struct machine *machine) | |
252 | { | |
253 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
254 | u64 n = 0; | |
570735b3 | 255 | int ret; |
9b07e27f SE |
256 | |
257 | /* | |
258 | * if jit marker, then inject jit mmaps and generate ELF images | |
259 | */ | |
570735b3 AH |
260 | ret = jit_process(inject->session, &inject->output, machine, |
261 | event->mmap.filename, sample->pid, &n); | |
262 | if (ret < 0) | |
263 | return ret; | |
264 | if (ret) { | |
9b07e27f SE |
265 | inject->bytes_written += n; |
266 | return 0; | |
267 | } | |
268 | return perf_event__repipe_mmap(tool, event, sample, machine); | |
269 | } | |
270 | #endif | |
271 | ||
5c5e854b SE |
272 | static int perf_event__repipe_mmap2(struct perf_tool *tool, |
273 | union perf_event *event, | |
274 | struct perf_sample *sample, | |
275 | struct machine *machine) | |
276 | { | |
277 | int err; | |
278 | ||
279 | err = perf_event__process_mmap2(tool, event, sample, machine); | |
280 | perf_event__repipe(tool, event, sample, machine); | |
281 | ||
282 | return err; | |
283 | } | |
284 | ||
e12b202f | 285 | #ifdef HAVE_JITDUMP |
9b07e27f SE |
286 | static int perf_event__jit_repipe_mmap2(struct perf_tool *tool, |
287 | union perf_event *event, | |
288 | struct perf_sample *sample, | |
289 | struct machine *machine) | |
290 | { | |
291 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
292 | u64 n = 0; | |
570735b3 | 293 | int ret; |
9b07e27f SE |
294 | |
295 | /* | |
296 | * if jit marker, then inject jit mmaps and generate ELF images | |
297 | */ | |
570735b3 AH |
298 | ret = jit_process(inject->session, &inject->output, machine, |
299 | event->mmap2.filename, sample->pid, &n); | |
300 | if (ret < 0) | |
301 | return ret; | |
302 | if (ret) { | |
9b07e27f SE |
303 | inject->bytes_written += n; |
304 | return 0; | |
305 | } | |
306 | return perf_event__repipe_mmap2(tool, event, sample, machine); | |
307 | } | |
308 | #endif | |
309 | ||
f62d3f0f | 310 | static int perf_event__repipe_fork(struct perf_tool *tool, |
d20deb64 | 311 | union perf_event *event, |
8115d60c | 312 | struct perf_sample *sample, |
743eb868 | 313 | struct machine *machine) |
454c407e TZ |
314 | { |
315 | int err; | |
316 | ||
f62d3f0f | 317 | err = perf_event__process_fork(tool, event, sample, machine); |
45694aa7 | 318 | perf_event__repipe(tool, event, sample, machine); |
454c407e TZ |
319 | |
320 | return err; | |
321 | } | |
322 | ||
0f0aa5e0 AH |
323 | static int perf_event__repipe_comm(struct perf_tool *tool, |
324 | union perf_event *event, | |
325 | struct perf_sample *sample, | |
326 | struct machine *machine) | |
327 | { | |
328 | int err; | |
329 | ||
330 | err = perf_event__process_comm(tool, event, sample, machine); | |
331 | perf_event__repipe(tool, event, sample, machine); | |
332 | ||
333 | return err; | |
334 | } | |
335 | ||
336 | static int perf_event__repipe_exit(struct perf_tool *tool, | |
337 | union perf_event *event, | |
338 | struct perf_sample *sample, | |
339 | struct machine *machine) | |
340 | { | |
341 | int err; | |
342 | ||
343 | err = perf_event__process_exit(tool, event, sample, machine); | |
344 | perf_event__repipe(tool, event, sample, machine); | |
345 | ||
346 | return err; | |
347 | } | |
348 | ||
47c3d109 AH |
349 | static int perf_event__repipe_tracing_data(struct perf_tool *tool, |
350 | union perf_event *event, | |
8115d60c | 351 | struct perf_session *session) |
454c407e TZ |
352 | { |
353 | int err; | |
354 | ||
47c3d109 AH |
355 | perf_event__repipe_synth(tool, event); |
356 | err = perf_event__process_tracing_data(tool, event, session); | |
454c407e TZ |
357 | |
358 | return err; | |
359 | } | |
360 | ||
0f0aa5e0 AH |
361 | static int perf_event__repipe_id_index(struct perf_tool *tool, |
362 | union perf_event *event, | |
363 | struct perf_session *session) | |
364 | { | |
365 | int err; | |
366 | ||
367 | perf_event__repipe_synth(tool, event); | |
368 | err = perf_event__process_id_index(tool, event, session); | |
369 | ||
370 | return err; | |
371 | } | |
372 | ||
c824c433 | 373 | static int dso__read_build_id(struct dso *dso) |
454c407e | 374 | { |
c824c433 | 375 | if (dso->has_build_id) |
090f7204 | 376 | return 0; |
454c407e | 377 | |
c824c433 ACM |
378 | if (filename__read_build_id(dso->long_name, dso->build_id, |
379 | sizeof(dso->build_id)) > 0) { | |
380 | dso->has_build_id = true; | |
090f7204 ACM |
381 | return 0; |
382 | } | |
454c407e | 383 | |
090f7204 ACM |
384 | return -1; |
385 | } | |
454c407e | 386 | |
c824c433 | 387 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
743eb868 | 388 | struct machine *machine) |
090f7204 ACM |
389 | { |
390 | u16 misc = PERF_RECORD_MISC_USER; | |
090f7204 | 391 | int err; |
454c407e | 392 | |
c824c433 ACM |
393 | if (dso__read_build_id(dso) < 0) { |
394 | pr_debug("no build_id found for %s\n", dso->long_name); | |
090f7204 ACM |
395 | return -1; |
396 | } | |
454c407e | 397 | |
c824c433 | 398 | if (dso->kernel) |
090f7204 | 399 | misc = PERF_RECORD_MISC_KERNEL; |
454c407e | 400 | |
c824c433 | 401 | err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe, |
743eb868 | 402 | machine); |
090f7204 | 403 | if (err) { |
c824c433 | 404 | pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
454c407e TZ |
405 | return -1; |
406 | } | |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
45694aa7 | 411 | static int perf_event__inject_buildid(struct perf_tool *tool, |
d20deb64 | 412 | union perf_event *event, |
8115d60c | 413 | struct perf_sample *sample, |
1d037ca1 | 414 | struct perf_evsel *evsel __maybe_unused, |
743eb868 | 415 | struct machine *machine) |
454c407e TZ |
416 | { |
417 | struct addr_location al; | |
418 | struct thread *thread; | |
454c407e | 419 | |
13ce34df | 420 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
454c407e TZ |
421 | if (thread == NULL) { |
422 | pr_err("problem processing %d event, skipping it.\n", | |
423 | event->header.type); | |
454c407e TZ |
424 | goto repipe; |
425 | } | |
426 | ||
473398a2 | 427 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al); |
454c407e TZ |
428 | |
429 | if (al.map != NULL) { | |
430 | if (!al.map->dso->hit) { | |
431 | al.map->dso->hit = 1; | |
090f7204 | 432 | if (map__load(al.map, NULL) >= 0) { |
45694aa7 | 433 | dso__inject_build_id(al.map->dso, tool, machine); |
090f7204 ACM |
434 | /* |
435 | * If this fails, too bad, let the other side | |
436 | * account this as unresolved. | |
437 | */ | |
393be2e3 | 438 | } else { |
89fe808a | 439 | #ifdef HAVE_LIBELF_SUPPORT |
454c407e TZ |
440 | pr_warning("no symbols found in %s, maybe " |
441 | "install a debug package?\n", | |
442 | al.map->dso->long_name); | |
393be2e3 NK |
443 | #endif |
444 | } | |
454c407e TZ |
445 | } |
446 | } | |
447 | ||
b91fc39f | 448 | thread__put(thread); |
454c407e | 449 | repipe: |
45694aa7 | 450 | perf_event__repipe(tool, event, sample, machine); |
090f7204 | 451 | return 0; |
454c407e TZ |
452 | } |
453 | ||
26a031e1 AV |
454 | static int perf_inject__sched_process_exit(struct perf_tool *tool, |
455 | union perf_event *event __maybe_unused, | |
456 | struct perf_sample *sample, | |
457 | struct perf_evsel *evsel __maybe_unused, | |
458 | struct machine *machine __maybe_unused) | |
459 | { | |
460 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
461 | struct event_entry *ent; | |
462 | ||
463 | list_for_each_entry(ent, &inject->samples, node) { | |
464 | if (sample->tid == ent->tid) { | |
465 | list_del_init(&ent->node); | |
466 | free(ent); | |
467 | break; | |
468 | } | |
469 | } | |
470 | ||
471 | return 0; | |
472 | } | |
473 | ||
474 | static int perf_inject__sched_switch(struct perf_tool *tool, | |
475 | union perf_event *event, | |
476 | struct perf_sample *sample, | |
477 | struct perf_evsel *evsel, | |
478 | struct machine *machine) | |
479 | { | |
480 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
481 | struct event_entry *ent; | |
482 | ||
483 | perf_inject__sched_process_exit(tool, event, sample, evsel, machine); | |
484 | ||
485 | ent = malloc(event->header.size + sizeof(struct event_entry)); | |
486 | if (ent == NULL) { | |
487 | color_fprintf(stderr, PERF_COLOR_RED, | |
488 | "Not enough memory to process sched switch event!"); | |
489 | return -1; | |
490 | } | |
491 | ||
492 | ent->tid = sample->tid; | |
493 | memcpy(&ent->event, event, event->header.size); | |
494 | list_add(&ent->node, &inject->samples); | |
495 | return 0; | |
496 | } | |
497 | ||
498 | static int perf_inject__sched_stat(struct perf_tool *tool, | |
499 | union perf_event *event __maybe_unused, | |
500 | struct perf_sample *sample, | |
501 | struct perf_evsel *evsel, | |
502 | struct machine *machine) | |
503 | { | |
504 | struct event_entry *ent; | |
505 | union perf_event *event_sw; | |
506 | struct perf_sample sample_sw; | |
507 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); | |
508 | u32 pid = perf_evsel__intval(evsel, sample, "pid"); | |
509 | ||
510 | list_for_each_entry(ent, &inject->samples, node) { | |
511 | if (pid == ent->tid) | |
512 | goto found; | |
513 | } | |
514 | ||
515 | return 0; | |
516 | found: | |
517 | event_sw = &ent->event[0]; | |
518 | perf_evsel__parse_sample(evsel, event_sw, &sample_sw); | |
519 | ||
520 | sample_sw.period = sample->period; | |
521 | sample_sw.time = sample->time; | |
522 | perf_event__synthesize_sample(event_sw, evsel->attr.sample_type, | |
d03f2170 AH |
523 | evsel->attr.read_format, &sample_sw, |
524 | false); | |
54a3cf59 | 525 | build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
26a031e1 AV |
526 | return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
527 | } | |
528 | ||
1d037ca1 | 529 | static void sig_handler(int sig __maybe_unused) |
454c407e TZ |
530 | { |
531 | session_done = 1; | |
532 | } | |
533 | ||
26a031e1 AV |
534 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
535 | u64 sample_type, const char *sample_msg) | |
536 | { | |
537 | struct perf_event_attr *attr = &evsel->attr; | |
538 | const char *name = perf_evsel__name(evsel); | |
539 | ||
540 | if (!(attr->sample_type & sample_type)) { | |
541 | pr_err("Samples for %s event do not have %s attribute set.", | |
542 | name, sample_msg); | |
543 | return -EINVAL; | |
544 | } | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
f56fb986 AH |
549 | static int drop_sample(struct perf_tool *tool __maybe_unused, |
550 | union perf_event *event __maybe_unused, | |
551 | struct perf_sample *sample __maybe_unused, | |
552 | struct perf_evsel *evsel __maybe_unused, | |
553 | struct machine *machine __maybe_unused) | |
554 | { | |
555 | return 0; | |
556 | } | |
557 | ||
558 | static void strip_init(struct perf_inject *inject) | |
559 | { | |
560 | struct perf_evlist *evlist = inject->session->evlist; | |
561 | struct perf_evsel *evsel; | |
562 | ||
563 | inject->tool.context_switch = perf_event__drop; | |
564 | ||
565 | evlist__for_each(evlist, evsel) | |
566 | evsel->handler = drop_sample; | |
567 | } | |
568 | ||
569 | static bool has_tracking(struct perf_evsel *evsel) | |
570 | { | |
571 | return evsel->attr.mmap || evsel->attr.mmap2 || evsel->attr.comm || | |
572 | evsel->attr.task; | |
573 | } | |
574 | ||
575 | #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \ | |
576 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER) | |
577 | ||
578 | /* | |
579 | * In order that the perf.data file is parsable, tracking events like MMAP need | |
580 | * their selected event to exist, except if there is only 1 selected event left | |
581 | * and it has a compatible sample type. | |
582 | */ | |
583 | static bool ok_to_remove(struct perf_evlist *evlist, | |
584 | struct perf_evsel *evsel_to_remove) | |
585 | { | |
586 | struct perf_evsel *evsel; | |
587 | int cnt = 0; | |
588 | bool ok = false; | |
589 | ||
590 | if (!has_tracking(evsel_to_remove)) | |
591 | return true; | |
592 | ||
593 | evlist__for_each(evlist, evsel) { | |
594 | if (evsel->handler != drop_sample) { | |
595 | cnt += 1; | |
596 | if ((evsel->attr.sample_type & COMPAT_MASK) == | |
597 | (evsel_to_remove->attr.sample_type & COMPAT_MASK)) | |
598 | ok = true; | |
599 | } | |
600 | } | |
601 | ||
602 | return ok && cnt == 1; | |
603 | } | |
604 | ||
605 | static void strip_fini(struct perf_inject *inject) | |
606 | { | |
607 | struct perf_evlist *evlist = inject->session->evlist; | |
608 | struct perf_evsel *evsel, *tmp; | |
609 | ||
610 | /* Remove non-synthesized evsels if possible */ | |
611 | evlist__for_each_safe(evlist, tmp, evsel) { | |
612 | if (evsel->handler == drop_sample && | |
613 | ok_to_remove(evlist, evsel)) { | |
614 | pr_debug("Deleting %s\n", perf_evsel__name(evsel)); | |
615 | perf_evlist__remove(evlist, evsel); | |
616 | perf_evsel__delete(evsel); | |
617 | } | |
618 | } | |
619 | } | |
620 | ||
5ded57ac | 621 | static int __cmd_inject(struct perf_inject *inject) |
454c407e | 622 | { |
454c407e | 623 | int ret = -EINVAL; |
1cb8bdcc | 624 | struct perf_session *session = inject->session; |
3406912c | 625 | struct perf_data_file *file_out = &inject->output; |
42aa276f | 626 | int fd = perf_data_file__fd(file_out); |
0f0aa5e0 | 627 | u64 output_data_offset; |
454c407e TZ |
628 | |
629 | signal(SIGINT, sig_handler); | |
630 | ||
0f0aa5e0 AH |
631 | if (inject->build_ids || inject->sched_stat || |
632 | inject->itrace_synth_opts.set) { | |
5ded57ac | 633 | inject->tool.mmap = perf_event__repipe_mmap; |
5c5e854b | 634 | inject->tool.mmap2 = perf_event__repipe_mmap2; |
f62d3f0f | 635 | inject->tool.fork = perf_event__repipe_fork; |
5ded57ac | 636 | inject->tool.tracing_data = perf_event__repipe_tracing_data; |
454c407e TZ |
637 | } |
638 | ||
0f0aa5e0 AH |
639 | output_data_offset = session->header.data_offset; |
640 | ||
54a3cf59 AV |
641 | if (inject->build_ids) { |
642 | inject->tool.sample = perf_event__inject_buildid; | |
643 | } else if (inject->sched_stat) { | |
26a031e1 AV |
644 | struct perf_evsel *evsel; |
645 | ||
0050f7aa | 646 | evlist__for_each(session->evlist, evsel) { |
26a031e1 AV |
647 | const char *name = perf_evsel__name(evsel); |
648 | ||
649 | if (!strcmp(name, "sched:sched_switch")) { | |
650 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) | |
651 | return -EINVAL; | |
652 | ||
744a9719 | 653 | evsel->handler = perf_inject__sched_switch; |
26a031e1 | 654 | } else if (!strcmp(name, "sched:sched_process_exit")) |
744a9719 | 655 | evsel->handler = perf_inject__sched_process_exit; |
26a031e1 | 656 | else if (!strncmp(name, "sched:sched_stat_", 17)) |
744a9719 | 657 | evsel->handler = perf_inject__sched_stat; |
26a031e1 | 658 | } |
0f0aa5e0 AH |
659 | } else if (inject->itrace_synth_opts.set) { |
660 | session->itrace_synth_opts = &inject->itrace_synth_opts; | |
661 | inject->itrace_synth_opts.inject = true; | |
662 | inject->tool.comm = perf_event__repipe_comm; | |
663 | inject->tool.exit = perf_event__repipe_exit; | |
664 | inject->tool.id_index = perf_event__repipe_id_index; | |
665 | inject->tool.auxtrace_info = perf_event__process_auxtrace_info; | |
666 | inject->tool.auxtrace = perf_event__process_auxtrace; | |
73117308 AH |
667 | inject->tool.aux = perf_event__drop_aux; |
668 | inject->tool.itrace_start = perf_event__drop_aux, | |
0f0aa5e0 AH |
669 | inject->tool.ordered_events = true; |
670 | inject->tool.ordering_requires_timestamps = true; | |
671 | /* Allow space in the header for new attributes */ | |
672 | output_data_offset = 4096; | |
f56fb986 AH |
673 | if (inject->strip) |
674 | strip_init(inject); | |
26a031e1 AV |
675 | } |
676 | ||
99fa2984 AH |
677 | if (!inject->itrace_synth_opts.set) |
678 | auxtrace_index__free(&session->auxtrace_index); | |
679 | ||
3406912c | 680 | if (!file_out->is_pipe) |
0f0aa5e0 | 681 | lseek(fd, output_data_offset, SEEK_SET); |
e558a5bd | 682 | |
b7b61cbe | 683 | ret = perf_session__process_events(session); |
454c407e | 684 | |
3406912c | 685 | if (!file_out->is_pipe) { |
640dad47 | 686 | if (inject->build_ids) |
e38b43c3 AH |
687 | perf_header__set_feat(&session->header, |
688 | HEADER_BUILD_ID); | |
640dad47 AH |
689 | /* |
690 | * Keep all buildids when there is unprocessed AUX data because | |
691 | * it is not known which ones the AUX trace hits. | |
692 | */ | |
693 | if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && | |
694 | inject->have_auxtrace && !inject->itrace_synth_opts.set) | |
695 | dsos__hit_all(session); | |
0f0aa5e0 AH |
696 | /* |
697 | * The AUX areas have been removed and replaced with | |
73117308 AH |
698 | * synthesized hardware events, so clear the feature flag and |
699 | * remove the evsel. | |
0f0aa5e0 | 700 | */ |
051a01b9 | 701 | if (inject->itrace_synth_opts.set) { |
73117308 AH |
702 | struct perf_evsel *evsel; |
703 | ||
0f0aa5e0 AH |
704 | perf_header__clear_feat(&session->header, |
705 | HEADER_AUXTRACE); | |
051a01b9 AH |
706 | if (inject->itrace_synth_opts.last_branch) |
707 | perf_header__set_feat(&session->header, | |
708 | HEADER_BRANCH_STACK); | |
73117308 AH |
709 | evsel = perf_evlist__id2evsel_strict(session->evlist, |
710 | inject->aux_id); | |
711 | if (evsel) { | |
712 | pr_debug("Deleting %s\n", | |
713 | perf_evsel__name(evsel)); | |
714 | perf_evlist__remove(session->evlist, evsel); | |
715 | perf_evsel__delete(evsel); | |
716 | } | |
f56fb986 AH |
717 | if (inject->strip) |
718 | strip_fini(inject); | |
051a01b9 | 719 | } |
0f0aa5e0 | 720 | session->header.data_offset = output_data_offset; |
e558a5bd | 721 | session->header.data_size = inject->bytes_written; |
42aa276f | 722 | perf_session__write_header(session, session->evlist, fd, true); |
e558a5bd AV |
723 | } |
724 | ||
454c407e TZ |
725 | return ret; |
726 | } | |
727 | ||
1d037ca1 | 728 | int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) |
454c407e | 729 | { |
5ded57ac ACM |
730 | struct perf_inject inject = { |
731 | .tool = { | |
732 | .sample = perf_event__repipe_sample, | |
733 | .mmap = perf_event__repipe, | |
5c5e854b | 734 | .mmap2 = perf_event__repipe, |
5ded57ac ACM |
735 | .comm = perf_event__repipe, |
736 | .fork = perf_event__repipe, | |
737 | .exit = perf_event__repipe, | |
738 | .lost = perf_event__repipe, | |
d8145b3e | 739 | .lost_samples = perf_event__repipe, |
4a96f7a0 | 740 | .aux = perf_event__repipe, |
0ad21f68 | 741 | .itrace_start = perf_event__repipe, |
0286039f | 742 | .context_switch = perf_event__repipe, |
5ded57ac ACM |
743 | .read = perf_event__repipe_sample, |
744 | .throttle = perf_event__repipe, | |
745 | .unthrottle = perf_event__repipe, | |
746 | .attr = perf_event__repipe_attr, | |
47c3d109 | 747 | .tracing_data = perf_event__repipe_op2_synth, |
cd17a9b5 AH |
748 | .auxtrace_info = perf_event__repipe_op2_synth, |
749 | .auxtrace = perf_event__repipe_auxtrace, | |
750 | .auxtrace_error = perf_event__repipe_op2_synth, | |
46bc29b9 | 751 | .time_conv = perf_event__repipe_op2_synth, |
d704ebda | 752 | .finished_round = perf_event__repipe_oe_synth, |
5ded57ac | 753 | .build_id = perf_event__repipe_op2_synth, |
3c659eed | 754 | .id_index = perf_event__repipe_op2_synth, |
5ded57ac | 755 | }, |
e558a5bd | 756 | .input_name = "-", |
26a031e1 | 757 | .samples = LIST_HEAD_INIT(inject.samples), |
3406912c JO |
758 | .output = { |
759 | .path = "-", | |
760 | .mode = PERF_DATA_MODE_WRITE, | |
761 | }, | |
5ded57ac | 762 | }; |
1cb8bdcc NK |
763 | struct perf_data_file file = { |
764 | .mode = PERF_DATA_MODE_READ, | |
765 | }; | |
766 | int ret; | |
767 | ||
9b07e27f | 768 | struct option options[] = { |
5ded57ac ACM |
769 | OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
770 | "Inject build-ids into the output stream"), | |
e558a5bd AV |
771 | OPT_STRING('i', "input", &inject.input_name, "file", |
772 | "input file name"), | |
3406912c | 773 | OPT_STRING('o', "output", &inject.output.path, "file", |
e558a5bd | 774 | "output file name"), |
26a031e1 AV |
775 | OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
776 | "Merge sched-stat and sched-switch for getting events " | |
777 | "where and how long tasks slept"), | |
e12b202f | 778 | #ifdef HAVE_JITDUMP |
9b07e27f | 779 | OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
e12b202f | 780 | #endif |
5ded57ac ACM |
781 | OPT_INCR('v', "verbose", &verbose, |
782 | "be more verbose (show build ids, etc)"), | |
a7a2b8b4 AH |
783 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
784 | "kallsyms pathname"), | |
ccaa474c | 785 | OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), |
0f0aa5e0 AH |
786 | OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
787 | NULL, "opts", "Instruction Tracing options", | |
788 | itrace_parse_synth_opts), | |
f56fb986 AH |
789 | OPT_BOOLEAN(0, "strip", &inject.strip, |
790 | "strip non-synthesized events (use with --itrace)"), | |
5ded57ac ACM |
791 | OPT_END() |
792 | }; | |
002439e8 ACM |
793 | const char * const inject_usage[] = { |
794 | "perf inject [<options>]", | |
795 | NULL | |
796 | }; | |
e12b202f | 797 | #ifndef HAVE_JITDUMP |
9b07e27f SE |
798 | set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
799 | #endif | |
002439e8 | 800 | argc = parse_options(argc, argv, options, inject_usage, 0); |
454c407e TZ |
801 | |
802 | /* | |
803 | * Any (unrecognized) arguments left? | |
804 | */ | |
805 | if (argc) | |
002439e8 | 806 | usage_with_options(inject_usage, options); |
454c407e | 807 | |
f56fb986 AH |
808 | if (inject.strip && !inject.itrace_synth_opts.set) { |
809 | pr_err("--strip option requires --itrace option\n"); | |
810 | return -1; | |
811 | } | |
812 | ||
3406912c JO |
813 | if (perf_data_file__open(&inject.output)) { |
814 | perror("failed to create output file"); | |
815 | return -1; | |
e558a5bd AV |
816 | } |
817 | ||
b7b61cbe ACM |
818 | inject.tool.ordered_events = inject.sched_stat; |
819 | ||
1cb8bdcc NK |
820 | file.path = inject.input_name; |
821 | inject.session = perf_session__new(&file, true, &inject.tool); | |
822 | if (inject.session == NULL) | |
52e02834 | 823 | return -1; |
1cb8bdcc | 824 | |
921f3fad ACM |
825 | if (inject.build_ids) { |
826 | /* | |
827 | * to make sure the mmap records are ordered correctly | |
828 | * and so that the correct especially due to jitted code | |
829 | * mmaps. We cannot generate the buildid hit list and | |
830 | * inject the jit mmaps at the same time for now. | |
831 | */ | |
832 | inject.tool.ordered_events = true; | |
833 | inject.tool.ordering_requires_timestamps = true; | |
834 | } | |
e12b202f | 835 | #ifdef HAVE_JITDUMP |
9b07e27f | 836 | if (inject.jit_mode) { |
9b07e27f SE |
837 | inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
838 | inject.tool.mmap = perf_event__jit_repipe_mmap; | |
839 | inject.tool.ordered_events = true; | |
840 | inject.tool.ordering_requires_timestamps = true; | |
841 | /* | |
842 | * JIT MMAP injection injects all MMAP events in one go, so it | |
843 | * does not obey finished_round semantics. | |
844 | */ | |
845 | inject.tool.finished_round = perf_event__drop_oe; | |
846 | } | |
847 | #endif | |
9fedfb0c TS |
848 | ret = symbol__init(&inject.session->header.env); |
849 | if (ret < 0) | |
850 | goto out_delete; | |
454c407e | 851 | |
1cb8bdcc NK |
852 | ret = __cmd_inject(&inject); |
853 | ||
9fedfb0c | 854 | out_delete: |
1cb8bdcc | 855 | perf_session__delete(inject.session); |
1cb8bdcc | 856 | return ret; |
454c407e | 857 | } |