blob: d1a2d104f2bc19153159f83c3bf4941896c5ccad [file] [log] [blame]
Tom Zanussi454c4072010-05-01 01:41:20 -05001/*
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"
Andrew Vagin26a031e2012-08-07 16:56:04 +040011#include "util/color.h"
12#include "util/evlist.h"
13#include "util/evsel.h"
Tom Zanussi454c4072010-05-01 01:41:20 -050014#include "util/session.h"
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -020015#include "util/tool.h"
Tom Zanussi454c4072010-05-01 01:41:20 -050016#include "util/debug.h"
Andrew Vagin54a3cf52012-08-07 16:56:05 +040017#include "util/build-id.h"
Jiri Olsaf5fc1412013-10-15 16:27:32 +020018#include "util/data.h"
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +030019#include "util/auxtrace.h"
Stephane Eranian9b07e272015-11-30 10:02:21 +010020#include "util/jit.h"
Tom Zanussi454c4072010-05-01 01:41:20 -050021
Josh Poimboeuf4b6ab942015-12-15 09:39:39 -060022#include <subcmd/parse-options.h>
Tom Zanussi454c4072010-05-01 01:41:20 -050023
Andrew Vagin26a031e2012-08-07 16:56:04 +040024#include <linux/list.h>
25
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -030026struct perf_inject {
Jiri Olsa34069122013-10-29 19:04:57 +010027 struct perf_tool tool;
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +090028 struct perf_session *session;
Jiri Olsa34069122013-10-29 19:04:57 +010029 bool build_ids;
30 bool sched_stat;
Adrian Huntercd10b282015-04-30 17:37:26 +030031 bool have_auxtrace;
Adrian Hunterf56fb982015-09-25 16:15:55 +030032 bool strip;
Stephane Eranian9b07e272015-11-30 10:02:21 +010033 bool jit_mode;
Jiri Olsa34069122013-10-29 19:04:57 +010034 const char *input_name;
35 struct perf_data_file output;
36 u64 bytes_written;
Adrian Hunter73117302015-09-25 16:15:54 +030037 u64 aux_id;
Jiri Olsa34069122013-10-29 19:04:57 +010038 struct list_head samples;
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +030039 struct itrace_synth_opts itrace_synth_opts;
Andrew Vagin26a031e2012-08-07 16:56:04 +040040};
41
42struct event_entry {
43 struct list_head node;
44 u32 tid;
45 union perf_event event[0];
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -030046};
Tom Zanussi454c4072010-05-01 01:41:20 -050047
Adrian Huntercd17a9b2015-04-21 12:21:54 +030048static int output_bytes(struct perf_inject *inject, void *buf, size_t sz)
Tom Zanussi454c4072010-05-01 01:41:20 -050049{
Jiri Olsa34069122013-10-29 19:04:57 +010050 ssize_t size;
Tom Zanussi454c4072010-05-01 01:41:20 -050051
Adrian Huntercd17a9b2015-04-21 12:21:54 +030052 size = perf_data_file__write(&inject->output, buf, sz);
Jiri Olsa34069122013-10-29 19:04:57 +010053 if (size < 0)
54 return -errno;
Tom Zanussi454c4072010-05-01 01:41:20 -050055
Jiri Olsa34069122013-10-29 19:04:57 +010056 inject->bytes_written += size;
Tom Zanussi454c4072010-05-01 01:41:20 -050057 return 0;
58}
59
Adrian Huntercd17a9b2015-04-21 12:21:54 +030060static 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
Arnaldo Carvalho de Melod704ebd2015-03-03 12:37:54 -030069static 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
Jiri Olsae12b2022016-03-10 17:41:13 +010076#ifdef HAVE_JITDUMP
Stephane Eranian9b07e272015-11-30 10:02:21 +010077static 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
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -020085static int perf_event__repipe_op2_synth(struct perf_tool *tool,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -020086 union perf_event *event,
Irina Tirdea1d037ca2012-09-11 01:15:03 +030087 struct perf_session *session
88 __maybe_unused)
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -020089{
Adrian Hunter63c2c9f2013-07-04 16:20:20 +030090 return perf_event__repipe_synth(tool, event);
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -020091}
92
Adrian Hunter47c3d102013-07-04 16:20:21 +030093static int perf_event__repipe_attr(struct perf_tool *tool,
94 union perf_event *event,
95 struct perf_evlist **pevlist)
Arnaldo Carvalho de Melo10d0f082011-11-11 22:45:41 -020096{
Adrian Hunter89c97d92013-10-22 10:34:09 +030097 struct perf_inject *inject = container_of(tool, struct perf_inject,
98 tool);
Stephane Eranian1a1ed1b2012-05-15 13:28:11 +020099 int ret;
Adrian Hunter47c3d102013-07-04 16:20:21 +0300100
101 ret = perf_event__process_attr(tool, event, pevlist);
Stephane Eranian1a1ed1b2012-05-15 13:28:11 +0200102 if (ret)
103 return ret;
104
Jiri Olsaa261e4a2014-06-05 18:51:44 +0200105 if (!inject->output.is_pipe)
Adrian Hunter89c97d92013-10-22 10:34:09 +0300106 return 0;
107
Adrian Hunter47c3d102013-07-04 16:20:21 +0300108 return perf_event__repipe_synth(tool, event);
Arnaldo Carvalho de Melo10d0f082011-11-11 22:45:41 -0200109}
110
Adrian Huntere31f0d02015-04-30 17:37:27 +0300111#ifdef HAVE_AUXTRACE_SUPPORT
112
113static 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
Adrian Huntercd17a9b2015-04-21 12:21:54 +0300132static s64 perf_event__repipe_auxtrace(struct perf_tool *tool,
133 union perf_event *event,
Arnaldo Carvalho de Melob8f8eb82016-03-22 13:09:37 -0300134 struct perf_session *session)
Adrian Huntercd17a9b2015-04-21 12:21:54 +0300135{
136 struct perf_inject *inject = container_of(tool, struct perf_inject,
137 tool);
138 int ret;
139
Adrian Huntercd10b282015-04-30 17:37:26 +0300140 inject->have_auxtrace = true;
141
Adrian Hunter99fa2982015-04-30 17:37:25 +0300142 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
Adrian Huntercd17a9b2015-04-21 12:21:54 +0300154 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
Adrian Huntere31f0d02015-04-30 17:37:27 +0300170#else
171
172static s64
173perf_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
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200183static int perf_event__repipe(struct perf_tool *tool,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200184 union perf_event *event,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300185 struct perf_sample *sample __maybe_unused,
Adrian Hunter63c2c9f2013-07-04 16:20:20 +0300186 struct machine *machine __maybe_unused)
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200187{
Adrian Hunter63c2c9f2013-07-04 16:20:20 +0300188 return perf_event__repipe_synth(tool, event);
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200189}
190
Adrian Hunterf56fb982015-09-25 16:15:55 +0300191static 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
Adrian Hunter73117302015-09-25 16:15:54 +0300199static 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
Andrew Vagin26a031e2012-08-07 16:56:04 +0400212typedef 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
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200218static int perf_event__repipe_sample(struct perf_tool *tool,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200219 union perf_event *event,
Andrew Vagin26a031e2012-08-07 16:56:04 +0400220 struct perf_sample *sample,
221 struct perf_evsel *evsel,
222 struct machine *machine)
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -0300223{
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -0300224 if (evsel->handler) {
225 inject_handler f = evsel->handler;
Andrew Vagin26a031e2012-08-07 16:56:04 +0400226 return f(tool, event, sample, evsel, machine);
227 }
228
Andrew Vagin54a3cf52012-08-07 16:56:05 +0400229 build_id__mark_dso_hit(tool, event, sample, evsel, machine);
230
Adrian Hunter63c2c9f2013-07-04 16:20:20 +0300231 return perf_event__repipe_synth(tool, event);
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -0300232}
233
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200234static int perf_event__repipe_mmap(struct perf_tool *tool,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200235 union perf_event *event,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200236 struct perf_sample *sample,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200237 struct machine *machine)
Tom Zanussi454c4072010-05-01 01:41:20 -0500238{
239 int err;
240
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200241 err = perf_event__process_mmap(tool, event, sample, machine);
242 perf_event__repipe(tool, event, sample, machine);
Tom Zanussi454c4072010-05-01 01:41:20 -0500243
244 return err;
245}
246
Jiri Olsae12b2022016-03-10 17:41:13 +0100247#ifdef HAVE_JITDUMP
Stephane Eranian9b07e272015-11-30 10:02:21 +0100248static 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;
Adrian Hunter570735b2016-03-07 16:44:40 -0300255 int ret;
Stephane Eranian9b07e272015-11-30 10:02:21 +0100256
257 /*
258 * if jit marker, then inject jit mmaps and generate ELF images
259 */
Adrian Hunter570735b2016-03-07 16:44:40 -0300260 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) {
Stephane Eranian9b07e272015-11-30 10:02:21 +0100265 inject->bytes_written += n;
266 return 0;
267 }
268 return perf_event__repipe_mmap(tool, event, sample, machine);
269}
270#endif
271
Stephane Eranian5c5e8542013-08-21 12:10:25 +0200272static 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
Jiri Olsae12b2022016-03-10 17:41:13 +0100285#ifdef HAVE_JITDUMP
Stephane Eranian9b07e272015-11-30 10:02:21 +0100286static 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;
Adrian Hunter570735b2016-03-07 16:44:40 -0300293 int ret;
Stephane Eranian9b07e272015-11-30 10:02:21 +0100294
295 /*
296 * if jit marker, then inject jit mmaps and generate ELF images
297 */
Adrian Hunter570735b2016-03-07 16:44:40 -0300298 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) {
Stephane Eranian9b07e272015-11-30 10:02:21 +0100303 inject->bytes_written += n;
304 return 0;
305 }
306 return perf_event__repipe_mmap2(tool, event, sample, machine);
307}
308#endif
309
Arnaldo Carvalho de Melof62d3f02012-10-06 15:44:59 -0300310static int perf_event__repipe_fork(struct perf_tool *tool,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200311 union perf_event *event,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200312 struct perf_sample *sample,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200313 struct machine *machine)
Tom Zanussi454c4072010-05-01 01:41:20 -0500314{
315 int err;
316
Arnaldo Carvalho de Melof62d3f02012-10-06 15:44:59 -0300317 err = perf_event__process_fork(tool, event, sample, machine);
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200318 perf_event__repipe(tool, event, sample, machine);
Tom Zanussi454c4072010-05-01 01:41:20 -0500319
320 return err;
321}
322
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300323static 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
336static 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
Adrian Hunter47c3d102013-07-04 16:20:21 +0300349static int perf_event__repipe_tracing_data(struct perf_tool *tool,
350 union perf_event *event,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200351 struct perf_session *session)
Tom Zanussi454c4072010-05-01 01:41:20 -0500352{
353 int err;
354
Adrian Hunter47c3d102013-07-04 16:20:21 +0300355 perf_event__repipe_synth(tool, event);
356 err = perf_event__process_tracing_data(tool, event, session);
Tom Zanussi454c4072010-05-01 01:41:20 -0500357
358 return err;
359}
360
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300361static 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
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300373static int dso__read_build_id(struct dso *dso)
Tom Zanussi454c4072010-05-01 01:41:20 -0500374{
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300375 if (dso->has_build_id)
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300376 return 0;
Tom Zanussi454c4072010-05-01 01:41:20 -0500377
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300378 if (filename__read_build_id(dso->long_name, dso->build_id,
379 sizeof(dso->build_id)) > 0) {
380 dso->has_build_id = true;
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300381 return 0;
Tom Zanussi454c4072010-05-01 01:41:20 -0500382 }
383
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300384 return -1;
385}
Tom Zanussi454c4072010-05-01 01:41:20 -0500386
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300387static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200388 struct machine *machine)
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300389{
390 u16 misc = PERF_RECORD_MISC_USER;
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300391 int err;
Tom Zanussi454c4072010-05-01 01:41:20 -0500392
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300393 if (dso__read_build_id(dso) < 0) {
394 pr_debug("no build_id found for %s\n", dso->long_name);
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300395 return -1;
396 }
Tom Zanussi454c4072010-05-01 01:41:20 -0500397
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300398 if (dso->kernel)
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300399 misc = PERF_RECORD_MISC_KERNEL;
400
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300401 err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200402 machine);
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300403 if (err) {
Arnaldo Carvalho de Meloc824c432013-10-22 19:01:31 -0300404 pr_err("Can't synthesize build_id event for %s\n", dso->long_name);
Tom Zanussi454c4072010-05-01 01:41:20 -0500405 return -1;
406 }
407
408 return 0;
409}
410
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200411static int perf_event__inject_buildid(struct perf_tool *tool,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200412 union perf_event *event,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200413 struct perf_sample *sample,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300414 struct perf_evsel *evsel __maybe_unused,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200415 struct machine *machine)
Tom Zanussi454c4072010-05-01 01:41:20 -0500416{
417 struct addr_location al;
418 struct thread *thread;
Tom Zanussi454c4072010-05-01 01:41:20 -0500419
Namhyung Kim13ce34d2014-05-12 09:56:42 +0900420 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
Tom Zanussi454c4072010-05-01 01:41:20 -0500421 if (thread == NULL) {
422 pr_err("problem processing %d event, skipping it.\n",
423 event->header.type);
Tom Zanussi454c4072010-05-01 01:41:20 -0500424 goto repipe;
425 }
426
Arnaldo Carvalho de Melo473398a2016-03-22 18:23:43 -0300427 thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al);
Tom Zanussi454c4072010-05-01 01:41:20 -0500428
429 if (al.map != NULL) {
430 if (!al.map->dso->hit) {
431 al.map->dso->hit = 1;
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300432 if (map__load(al.map, NULL) >= 0) {
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200433 dso__inject_build_id(al.map->dso, tool, machine);
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300434 /*
435 * If this fails, too bad, let the other side
436 * account this as unresolved.
437 */
Namhyung Kim393be2e2012-08-06 13:41:21 +0900438 } else {
Ingo Molnar89fe8082013-09-30 12:07:11 +0200439#ifdef HAVE_LIBELF_SUPPORT
Tom Zanussi454c4072010-05-01 01:41:20 -0500440 pr_warning("no symbols found in %s, maybe "
441 "install a debug package?\n",
442 al.map->dso->long_name);
Namhyung Kim393be2e2012-08-06 13:41:21 +0900443#endif
444 }
Tom Zanussi454c4072010-05-01 01:41:20 -0500445 }
446 }
447
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -0300448 thread__put(thread);
Tom Zanussi454c4072010-05-01 01:41:20 -0500449repipe:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200450 perf_event__repipe(tool, event, sample, machine);
Arnaldo Carvalho de Melo090f7202010-05-02 19:46:36 -0300451 return 0;
Tom Zanussi454c4072010-05-01 01:41:20 -0500452}
453
Andrew Vagin26a031e2012-08-07 16:56:04 +0400454static 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
474static 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
498static 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;
516found:
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,
Adrian Hunterd03f2172013-08-27 11:23:11 +0300523 evsel->attr.read_format, &sample_sw,
524 false);
Andrew Vagin54a3cf52012-08-07 16:56:05 +0400525 build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine);
Andrew Vagin26a031e2012-08-07 16:56:04 +0400526 return perf_event__repipe(tool, event_sw, &sample_sw, machine);
527}
528
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300529static void sig_handler(int sig __maybe_unused)
Tom Zanussi454c4072010-05-01 01:41:20 -0500530{
531 session_done = 1;
532}
533
Andrew Vagin26a031e2012-08-07 16:56:04 +0400534static 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
Adrian Hunterf56fb982015-09-25 16:15:55 +0300549static 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
558static 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
569static 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 */
583static 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
605static 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
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300621static int __cmd_inject(struct perf_inject *inject)
Tom Zanussi454c4072010-05-01 01:41:20 -0500622{
Tom Zanussi454c4072010-05-01 01:41:20 -0500623 int ret = -EINVAL;
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +0900624 struct perf_session *session = inject->session;
Jiri Olsa34069122013-10-29 19:04:57 +0100625 struct perf_data_file *file_out = &inject->output;
Namhyung Kim42aa2762015-01-29 17:06:48 +0900626 int fd = perf_data_file__fd(file_out);
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300627 u64 output_data_offset;
Tom Zanussi454c4072010-05-01 01:41:20 -0500628
629 signal(SIGINT, sig_handler);
630
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300631 if (inject->build_ids || inject->sched_stat ||
632 inject->itrace_synth_opts.set) {
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300633 inject->tool.mmap = perf_event__repipe_mmap;
Stephane Eranian5c5e8542013-08-21 12:10:25 +0200634 inject->tool.mmap2 = perf_event__repipe_mmap2;
Arnaldo Carvalho de Melof62d3f02012-10-06 15:44:59 -0300635 inject->tool.fork = perf_event__repipe_fork;
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300636 inject->tool.tracing_data = perf_event__repipe_tracing_data;
Tom Zanussi454c4072010-05-01 01:41:20 -0500637 }
638
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300639 output_data_offset = session->header.data_offset;
640
Andrew Vagin54a3cf52012-08-07 16:56:05 +0400641 if (inject->build_ids) {
642 inject->tool.sample = perf_event__inject_buildid;
643 } else if (inject->sched_stat) {
Andrew Vagin26a031e2012-08-07 16:56:04 +0400644 struct perf_evsel *evsel;
645
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300646 evlist__for_each(session->evlist, evsel) {
Andrew Vagin26a031e2012-08-07 16:56:04 +0400647 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
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -0300653 evsel->handler = perf_inject__sched_switch;
Andrew Vagin26a031e2012-08-07 16:56:04 +0400654 } else if (!strcmp(name, "sched:sched_process_exit"))
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -0300655 evsel->handler = perf_inject__sched_process_exit;
Andrew Vagin26a031e2012-08-07 16:56:04 +0400656 else if (!strncmp(name, "sched:sched_stat_", 17))
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -0300657 evsel->handler = perf_inject__sched_stat;
Andrew Vagin26a031e2012-08-07 16:56:04 +0400658 }
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300659 } 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;
Adrian Hunter73117302015-09-25 16:15:54 +0300667 inject->tool.aux = perf_event__drop_aux;
668 inject->tool.itrace_start = perf_event__drop_aux,
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300669 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;
Adrian Hunterf56fb982015-09-25 16:15:55 +0300673 if (inject->strip)
674 strip_init(inject);
Andrew Vagin26a031e2012-08-07 16:56:04 +0400675 }
676
Adrian Hunter99fa2982015-04-30 17:37:25 +0300677 if (!inject->itrace_synth_opts.set)
678 auxtrace_index__free(&session->auxtrace_index);
679
Jiri Olsa34069122013-10-29 19:04:57 +0100680 if (!file_out->is_pipe)
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300681 lseek(fd, output_data_offset, SEEK_SET);
Andrew Vagine558a5b2012-08-07 16:56:02 +0400682
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -0300683 ret = perf_session__process_events(session);
Tom Zanussi454c4072010-05-01 01:41:20 -0500684
Jiri Olsa34069122013-10-29 19:04:57 +0100685 if (!file_out->is_pipe) {
Adrian Hunter640dad42016-03-07 16:44:38 -0300686 if (inject->build_ids)
Adrian Huntere38b43c2014-07-14 13:02:34 +0300687 perf_header__set_feat(&session->header,
688 HEADER_BUILD_ID);
Adrian Hunter640dad42016-03-07 16:44:38 -0300689 /*
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);
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300696 /*
697 * The AUX areas have been removed and replaced with
Adrian Hunter73117302015-09-25 16:15:54 +0300698 * synthesized hardware events, so clear the feature flag and
699 * remove the evsel.
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300700 */
Adrian Hunter051a01b2015-09-25 16:15:43 +0300701 if (inject->itrace_synth_opts.set) {
Adrian Hunter73117302015-09-25 16:15:54 +0300702 struct perf_evsel *evsel;
703
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300704 perf_header__clear_feat(&session->header,
705 HEADER_AUXTRACE);
Adrian Hunter051a01b2015-09-25 16:15:43 +0300706 if (inject->itrace_synth_opts.last_branch)
707 perf_header__set_feat(&session->header,
708 HEADER_BRANCH_STACK);
Adrian Hunter73117302015-09-25 16:15:54 +0300709 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 }
Adrian Hunterf56fb982015-09-25 16:15:55 +0300717 if (inject->strip)
718 strip_fini(inject);
Adrian Hunter051a01b2015-09-25 16:15:43 +0300719 }
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300720 session->header.data_offset = output_data_offset;
Andrew Vagine558a5b2012-08-07 16:56:02 +0400721 session->header.data_size = inject->bytes_written;
Namhyung Kim42aa2762015-01-29 17:06:48 +0900722 perf_session__write_header(session, session->evlist, fd, true);
Andrew Vagine558a5b2012-08-07 16:56:02 +0400723 }
724
Tom Zanussi454c4072010-05-01 01:41:20 -0500725 return ret;
726}
727
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300728int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
Tom Zanussi454c4072010-05-01 01:41:20 -0500729{
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300730 struct perf_inject inject = {
731 .tool = {
732 .sample = perf_event__repipe_sample,
733 .mmap = perf_event__repipe,
Stephane Eranian5c5e8542013-08-21 12:10:25 +0200734 .mmap2 = perf_event__repipe,
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300735 .comm = perf_event__repipe,
736 .fork = perf_event__repipe,
737 .exit = perf_event__repipe,
738 .lost = perf_event__repipe,
Adrian Hunterd8145b32015-11-13 11:48:32 +0200739 .lost_samples = perf_event__repipe,
Adrian Hunter4a96f7a2015-04-30 17:37:29 +0300740 .aux = perf_event__repipe,
Adrian Hunter0ad21f62015-04-30 17:37:30 +0300741 .itrace_start = perf_event__repipe,
Adrian Hunter02860392015-07-21 12:44:03 +0300742 .context_switch = perf_event__repipe,
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300743 .read = perf_event__repipe_sample,
744 .throttle = perf_event__repipe,
745 .unthrottle = perf_event__repipe,
746 .attr = perf_event__repipe_attr,
Adrian Hunter47c3d102013-07-04 16:20:21 +0300747 .tracing_data = perf_event__repipe_op2_synth,
Adrian Huntercd17a9b2015-04-21 12:21:54 +0300748 .auxtrace_info = perf_event__repipe_op2_synth,
749 .auxtrace = perf_event__repipe_auxtrace,
750 .auxtrace_error = perf_event__repipe_op2_synth,
Arnaldo Carvalho de Melod704ebd2015-03-03 12:37:54 -0300751 .finished_round = perf_event__repipe_oe_synth,
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300752 .build_id = perf_event__repipe_op2_synth,
Adrian Hunter3c659ee2014-10-27 15:49:22 +0200753 .id_index = perf_event__repipe_op2_synth,
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300754 },
Andrew Vagine558a5b2012-08-07 16:56:02 +0400755 .input_name = "-",
Andrew Vagin26a031e2012-08-07 16:56:04 +0400756 .samples = LIST_HEAD_INIT(inject.samples),
Jiri Olsa34069122013-10-29 19:04:57 +0100757 .output = {
758 .path = "-",
759 .mode = PERF_DATA_MODE_WRITE,
760 },
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300761 };
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +0900762 struct perf_data_file file = {
763 .mode = PERF_DATA_MODE_READ,
764 };
765 int ret;
766
Stephane Eranian9b07e272015-11-30 10:02:21 +0100767 struct option options[] = {
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300768 OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
769 "Inject build-ids into the output stream"),
Andrew Vagine558a5b2012-08-07 16:56:02 +0400770 OPT_STRING('i', "input", &inject.input_name, "file",
771 "input file name"),
Jiri Olsa34069122013-10-29 19:04:57 +0100772 OPT_STRING('o', "output", &inject.output.path, "file",
Andrew Vagine558a5b2012-08-07 16:56:02 +0400773 "output file name"),
Andrew Vagin26a031e2012-08-07 16:56:04 +0400774 OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
775 "Merge sched-stat and sched-switch for getting events "
776 "where and how long tasks slept"),
Jiri Olsae12b2022016-03-10 17:41:13 +0100777#ifdef HAVE_JITDUMP
Stephane Eranian9b07e272015-11-30 10:02:21 +0100778 OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"),
Jiri Olsae12b2022016-03-10 17:41:13 +0100779#endif
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300780 OPT_INCR('v', "verbose", &verbose,
781 "be more verbose (show build ids, etc)"),
Adrian Huntera7a2b8b2014-07-22 16:17:38 +0300782 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file",
783 "kallsyms pathname"),
Yunlong Songccaa4742015-04-02 21:47:11 +0800784 OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
Adrian Hunter0f0aa5e2015-04-09 18:54:00 +0300785 OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts,
786 NULL, "opts", "Instruction Tracing options",
787 itrace_parse_synth_opts),
Adrian Hunterf56fb982015-09-25 16:15:55 +0300788 OPT_BOOLEAN(0, "strip", &inject.strip,
789 "strip non-synthesized events (use with --itrace)"),
Arnaldo Carvalho de Melo5ded57a2012-09-30 19:54:10 -0300790 OPT_END()
791 };
Arnaldo Carvalho de Melo002439e2012-10-01 15:20:58 -0300792 const char * const inject_usage[] = {
793 "perf inject [<options>]",
794 NULL
795 };
Jiri Olsae12b2022016-03-10 17:41:13 +0100796#ifndef HAVE_JITDUMP
Stephane Eranian9b07e272015-11-30 10:02:21 +0100797 set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true);
798#endif
Arnaldo Carvalho de Melo002439e2012-10-01 15:20:58 -0300799 argc = parse_options(argc, argv, options, inject_usage, 0);
Tom Zanussi454c4072010-05-01 01:41:20 -0500800
801 /*
802 * Any (unrecognized) arguments left?
803 */
804 if (argc)
Arnaldo Carvalho de Melo002439e2012-10-01 15:20:58 -0300805 usage_with_options(inject_usage, options);
Tom Zanussi454c4072010-05-01 01:41:20 -0500806
Adrian Hunterf56fb982015-09-25 16:15:55 +0300807 if (inject.strip && !inject.itrace_synth_opts.set) {
808 pr_err("--strip option requires --itrace option\n");
809 return -1;
810 }
811
Jiri Olsa34069122013-10-29 19:04:57 +0100812 if (perf_data_file__open(&inject.output)) {
813 perror("failed to create output file");
814 return -1;
Andrew Vagine558a5b2012-08-07 16:56:02 +0400815 }
816
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -0300817 inject.tool.ordered_events = inject.sched_stat;
818
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +0900819 file.path = inject.input_name;
820 inject.session = perf_session__new(&file, true, &inject.tool);
821 if (inject.session == NULL)
Taeung Song52e028342014-09-24 10:33:37 +0900822 return -1;
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +0900823
Arnaldo Carvalho de Melo921f3fa2016-01-22 18:41:00 -0300824 if (inject.build_ids) {
825 /*
826 * to make sure the mmap records are ordered correctly
827 * and so that the correct especially due to jitted code
828 * mmaps. We cannot generate the buildid hit list and
829 * inject the jit mmaps at the same time for now.
830 */
831 inject.tool.ordered_events = true;
832 inject.tool.ordering_requires_timestamps = true;
833 }
Jiri Olsae12b2022016-03-10 17:41:13 +0100834#ifdef HAVE_JITDUMP
Stephane Eranian9b07e272015-11-30 10:02:21 +0100835 if (inject.jit_mode) {
Stephane Eranian9b07e272015-11-30 10:02:21 +0100836 inject.tool.mmap2 = perf_event__jit_repipe_mmap2;
837 inject.tool.mmap = perf_event__jit_repipe_mmap;
838 inject.tool.ordered_events = true;
839 inject.tool.ordering_requires_timestamps = true;
840 /*
841 * JIT MMAP injection injects all MMAP events in one go, so it
842 * does not obey finished_round semantics.
843 */
844 inject.tool.finished_round = perf_event__drop_oe;
845 }
846#endif
Taeung Song9fedfb02015-06-30 17:15:20 +0900847 ret = symbol__init(&inject.session->header.env);
848 if (ret < 0)
849 goto out_delete;
Tom Zanussi454c4072010-05-01 01:41:20 -0500850
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +0900851 ret = __cmd_inject(&inject);
852
Taeung Song9fedfb02015-06-30 17:15:20 +0900853out_delete:
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +0900854 perf_session__delete(inject.session);
Namhyung Kim1cb8bdc2014-08-12 15:40:37 +0900855 return ret;
Tom Zanussi454c4072010-05-01 01:41:20 -0500856}