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Commit | Line | Data |
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4e319027 | 1 | #include <traceevent/event-parse.h> |
514f1c67 | 2 | #include "builtin.h" |
752fde44 | 3 | #include "util/color.h" |
7c304ee0 | 4 | #include "util/debug.h" |
514f1c67 | 5 | #include "util/evlist.h" |
752fde44 ACM |
6 | #include "util/machine.h" |
7 | #include "util/thread.h" | |
514f1c67 | 8 | #include "util/parse-options.h" |
2ae3a312 | 9 | #include "util/strlist.h" |
514f1c67 | 10 | #include "util/thread_map.h" |
514f1c67 ACM |
11 | |
12 | #include <libaudit.h> | |
13 | #include <stdlib.h> | |
14 | ||
15 | static struct syscall_fmt { | |
16 | const char *name; | |
aec1930b | 17 | const char *alias; |
514f1c67 ACM |
18 | bool errmsg; |
19 | bool timeout; | |
20 | } syscall_fmts[] = { | |
8b745263 | 21 | { .name = "access", .errmsg = true, }, |
aec1930b | 22 | { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, |
a14bb860 | 23 | { .name = "connect", .errmsg = true, }, |
aec1930b ACM |
24 | { .name = "fstat", .errmsg = true, .alias = "newfstat", }, |
25 | { .name = "fstatat", .errmsg = true, .alias = "newfstatat", }, | |
26 | { .name = "futex", .errmsg = true, }, | |
8b745263 | 27 | { .name = "open", .errmsg = true, }, |
aec1930b ACM |
28 | { .name = "poll", .errmsg = true, .timeout = true, }, |
29 | { .name = "ppoll", .errmsg = true, .timeout = true, }, | |
30 | { .name = "read", .errmsg = true, }, | |
31 | { .name = "recvfrom", .errmsg = true, }, | |
32 | { .name = "select", .errmsg = true, .timeout = true, }, | |
8b745263 | 33 | { .name = "socket", .errmsg = true, }, |
aec1930b | 34 | { .name = "stat", .errmsg = true, .alias = "newstat", }, |
514f1c67 ACM |
35 | }; |
36 | ||
37 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
38 | { | |
39 | const struct syscall_fmt *fmt = fmtp; | |
40 | return strcmp(name, fmt->name); | |
41 | } | |
42 | ||
43 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
44 | { | |
45 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
46 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
47 | } | |
48 | ||
49 | struct syscall { | |
50 | struct event_format *tp_format; | |
51 | const char *name; | |
2ae3a312 | 52 | bool filtered; |
514f1c67 ACM |
53 | struct syscall_fmt *fmt; |
54 | }; | |
55 | ||
60c907ab ACM |
56 | static size_t fprintf_duration(unsigned long t, FILE *fp) |
57 | { | |
58 | double duration = (double)t / NSEC_PER_MSEC; | |
59 | size_t printed = fprintf(fp, "("); | |
60 | ||
61 | if (duration >= 1.0) | |
62 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); | |
63 | else if (duration >= 0.01) | |
64 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
65 | else | |
66 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 67 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
68 | } |
69 | ||
752fde44 ACM |
70 | struct thread_trace { |
71 | u64 entry_time; | |
72 | u64 exit_time; | |
73 | bool entry_pending; | |
efd5745e | 74 | unsigned long nr_events; |
752fde44 | 75 | char *entry_str; |
1302d88e | 76 | double runtime_ms; |
752fde44 ACM |
77 | }; |
78 | ||
79 | static struct thread_trace *thread_trace__new(void) | |
80 | { | |
81 | return zalloc(sizeof(struct thread_trace)); | |
82 | } | |
83 | ||
c24ff998 | 84 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 85 | { |
efd5745e ACM |
86 | struct thread_trace *ttrace; |
87 | ||
752fde44 ACM |
88 | if (thread == NULL) |
89 | goto fail; | |
90 | ||
91 | if (thread->priv == NULL) | |
92 | thread->priv = thread_trace__new(); | |
efd5745e | 93 | |
752fde44 ACM |
94 | if (thread->priv == NULL) |
95 | goto fail; | |
96 | ||
efd5745e ACM |
97 | ttrace = thread->priv; |
98 | ++ttrace->nr_events; | |
99 | ||
100 | return ttrace; | |
752fde44 | 101 | fail: |
c24ff998 | 102 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
103 | "WARNING: not enough memory, dropping samples!\n"); |
104 | return NULL; | |
105 | } | |
106 | ||
514f1c67 | 107 | struct trace { |
c24ff998 | 108 | struct perf_tool tool; |
514f1c67 ACM |
109 | int audit_machine; |
110 | struct { | |
111 | int max; | |
112 | struct syscall *table; | |
113 | } syscalls; | |
114 | struct perf_record_opts opts; | |
752fde44 ACM |
115 | struct machine host; |
116 | u64 base_time; | |
c24ff998 | 117 | FILE *output; |
efd5745e | 118 | unsigned long nr_events; |
b059efdf ACM |
119 | struct strlist *ev_qualifier; |
120 | bool not_ev_qualifier; | |
1302d88e | 121 | bool sched; |
752fde44 | 122 | bool multiple_threads; |
ae9ed035 | 123 | double duration_filter; |
1302d88e | 124 | double runtime_ms; |
514f1c67 ACM |
125 | }; |
126 | ||
ae9ed035 ACM |
127 | static bool trace__filter_duration(struct trace *trace, double t) |
128 | { | |
129 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
130 | } | |
131 | ||
752fde44 ACM |
132 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
133 | { | |
134 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
135 | ||
60c907ab | 136 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
137 | } |
138 | ||
f15eb531 NK |
139 | static bool done = false; |
140 | ||
141 | static void sig_handler(int sig __maybe_unused) | |
142 | { | |
143 | done = true; | |
144 | } | |
145 | ||
752fde44 | 146 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
60c907ab | 147 | u64 duration, u64 tstamp, FILE *fp) |
752fde44 ACM |
148 | { |
149 | size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
60c907ab | 150 | printed += fprintf_duration(duration, fp); |
752fde44 ACM |
151 | |
152 | if (trace->multiple_threads) | |
38051234 | 153 | printed += fprintf(fp, "%d ", thread->tid); |
752fde44 ACM |
154 | |
155 | return printed; | |
156 | } | |
157 | ||
c24ff998 ACM |
158 | static int trace__process_event(struct trace *trace, struct machine *machine, |
159 | union perf_event *event) | |
752fde44 ACM |
160 | { |
161 | int ret = 0; | |
162 | ||
163 | switch (event->header.type) { | |
164 | case PERF_RECORD_LOST: | |
c24ff998 | 165 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 ACM |
166 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
167 | ret = machine__process_lost_event(machine, event); | |
168 | default: | |
169 | ret = machine__process_event(machine, event); | |
170 | break; | |
171 | } | |
172 | ||
173 | return ret; | |
174 | } | |
175 | ||
c24ff998 | 176 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 ACM |
177 | union perf_event *event, |
178 | struct perf_sample *sample __maybe_unused, | |
179 | struct machine *machine) | |
180 | { | |
c24ff998 ACM |
181 | struct trace *trace = container_of(tool, struct trace, tool); |
182 | return trace__process_event(trace, machine, event); | |
752fde44 ACM |
183 | } |
184 | ||
185 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) | |
186 | { | |
187 | int err = symbol__init(); | |
188 | ||
189 | if (err) | |
190 | return err; | |
191 | ||
192 | machine__init(&trace->host, "", HOST_KERNEL_ID); | |
193 | machine__create_kernel_maps(&trace->host); | |
194 | ||
195 | if (perf_target__has_task(&trace->opts.target)) { | |
c24ff998 | 196 | err = perf_event__synthesize_thread_map(&trace->tool, evlist->threads, |
752fde44 ACM |
197 | trace__tool_process, |
198 | &trace->host); | |
199 | } else { | |
c24ff998 | 200 | err = perf_event__synthesize_threads(&trace->tool, trace__tool_process, |
752fde44 ACM |
201 | &trace->host); |
202 | } | |
203 | ||
204 | if (err) | |
205 | symbol__exit(); | |
206 | ||
207 | return err; | |
208 | } | |
209 | ||
514f1c67 ACM |
210 | static int trace__read_syscall_info(struct trace *trace, int id) |
211 | { | |
212 | char tp_name[128]; | |
213 | struct syscall *sc; | |
3a531260 ACM |
214 | const char *name = audit_syscall_to_name(id, trace->audit_machine); |
215 | ||
216 | if (name == NULL) | |
217 | return -1; | |
514f1c67 ACM |
218 | |
219 | if (id > trace->syscalls.max) { | |
220 | struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
221 | ||
222 | if (nsyscalls == NULL) | |
223 | return -1; | |
224 | ||
225 | if (trace->syscalls.max != -1) { | |
226 | memset(nsyscalls + trace->syscalls.max + 1, 0, | |
227 | (id - trace->syscalls.max) * sizeof(*sc)); | |
228 | } else { | |
229 | memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); | |
230 | } | |
231 | ||
232 | trace->syscalls.table = nsyscalls; | |
233 | trace->syscalls.max = id; | |
234 | } | |
235 | ||
236 | sc = trace->syscalls.table + id; | |
3a531260 | 237 | sc->name = name; |
2ae3a312 | 238 | |
b059efdf ACM |
239 | if (trace->ev_qualifier) { |
240 | bool in = strlist__find(trace->ev_qualifier, name) != NULL; | |
241 | ||
242 | if (!(in ^ trace->not_ev_qualifier)) { | |
243 | sc->filtered = true; | |
244 | /* | |
245 | * No need to do read tracepoint information since this will be | |
246 | * filtered out. | |
247 | */ | |
248 | return 0; | |
249 | } | |
2ae3a312 ACM |
250 | } |
251 | ||
3a531260 | 252 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 253 | |
aec1930b | 254 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
514f1c67 | 255 | sc->tp_format = event_format__new("syscalls", tp_name); |
aec1930b ACM |
256 | |
257 | if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) { | |
258 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); | |
259 | sc->tp_format = event_format__new("syscalls", tp_name); | |
260 | } | |
514f1c67 ACM |
261 | |
262 | return sc->tp_format != NULL ? 0 : -1; | |
263 | } | |
264 | ||
752fde44 ACM |
265 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
266 | unsigned long *args) | |
514f1c67 ACM |
267 | { |
268 | int i = 0; | |
269 | size_t printed = 0; | |
270 | ||
271 | if (sc->tp_format != NULL) { | |
272 | struct format_field *field; | |
273 | ||
274 | for (field = sc->tp_format->format.fields->next; field; field = field->next) { | |
752fde44 ACM |
275 | printed += scnprintf(bf + printed, size - printed, |
276 | "%s%s: %ld", printed ? ", " : "", | |
277 | field->name, args[i++]); | |
514f1c67 ACM |
278 | } |
279 | } else { | |
280 | while (i < 6) { | |
752fde44 ACM |
281 | printed += scnprintf(bf + printed, size - printed, |
282 | "%sarg%d: %ld", | |
283 | printed ? ", " : "", i, args[i]); | |
514f1c67 ACM |
284 | ++i; |
285 | } | |
286 | } | |
287 | ||
288 | return printed; | |
289 | } | |
290 | ||
ba3d7dee ACM |
291 | typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, |
292 | struct perf_sample *sample); | |
293 | ||
294 | static struct syscall *trace__syscall_info(struct trace *trace, | |
295 | struct perf_evsel *evsel, | |
296 | struct perf_sample *sample) | |
297 | { | |
298 | int id = perf_evsel__intval(evsel, sample, "id"); | |
299 | ||
300 | if (id < 0) { | |
c24ff998 | 301 | fprintf(trace->output, "Invalid syscall %d id, skipping...\n", id); |
ba3d7dee ACM |
302 | return NULL; |
303 | } | |
304 | ||
305 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && | |
306 | trace__read_syscall_info(trace, id)) | |
307 | goto out_cant_read; | |
308 | ||
309 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) | |
310 | goto out_cant_read; | |
311 | ||
312 | return &trace->syscalls.table[id]; | |
313 | ||
314 | out_cant_read: | |
7c304ee0 ACM |
315 | if (verbose) { |
316 | fprintf(trace->output, "Problems reading syscall %d", id); | |
317 | if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) | |
318 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); | |
319 | fputs(" information\n", trace->output); | |
320 | } | |
ba3d7dee ACM |
321 | return NULL; |
322 | } | |
323 | ||
324 | static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, | |
325 | struct perf_sample *sample) | |
326 | { | |
752fde44 | 327 | char *msg; |
ba3d7dee | 328 | void *args; |
752fde44 | 329 | size_t printed = 0; |
2ae3a312 | 330 | struct thread *thread; |
ba3d7dee | 331 | struct syscall *sc = trace__syscall_info(trace, evsel, sample); |
2ae3a312 ACM |
332 | struct thread_trace *ttrace; |
333 | ||
334 | if (sc == NULL) | |
335 | return -1; | |
ba3d7dee | 336 | |
2ae3a312 ACM |
337 | if (sc->filtered) |
338 | return 0; | |
339 | ||
340 | thread = machine__findnew_thread(&trace->host, sample->tid); | |
c24ff998 | 341 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 342 | if (ttrace == NULL) |
ba3d7dee ACM |
343 | return -1; |
344 | ||
345 | args = perf_evsel__rawptr(evsel, sample, "args"); | |
346 | if (args == NULL) { | |
c24ff998 | 347 | fprintf(trace->output, "Problems reading syscall arguments\n"); |
ba3d7dee ACM |
348 | return -1; |
349 | } | |
350 | ||
752fde44 ACM |
351 | ttrace = thread->priv; |
352 | ||
353 | if (ttrace->entry_str == NULL) { | |
354 | ttrace->entry_str = malloc(1024); | |
355 | if (!ttrace->entry_str) | |
356 | return -1; | |
357 | } | |
358 | ||
359 | ttrace->entry_time = sample->time; | |
360 | msg = ttrace->entry_str; | |
361 | printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name); | |
362 | ||
363 | printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed, args); | |
364 | ||
365 | if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) { | |
ae9ed035 | 366 | if (!trace->duration_filter) { |
c24ff998 ACM |
367 | trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output); |
368 | fprintf(trace->output, "%-70s\n", ttrace->entry_str); | |
ae9ed035 | 369 | } |
752fde44 ACM |
370 | } else |
371 | ttrace->entry_pending = true; | |
ba3d7dee ACM |
372 | |
373 | return 0; | |
374 | } | |
375 | ||
376 | static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, | |
377 | struct perf_sample *sample) | |
378 | { | |
379 | int ret; | |
60c907ab | 380 | u64 duration = 0; |
2ae3a312 | 381 | struct thread *thread; |
ba3d7dee | 382 | struct syscall *sc = trace__syscall_info(trace, evsel, sample); |
2ae3a312 ACM |
383 | struct thread_trace *ttrace; |
384 | ||
385 | if (sc == NULL) | |
386 | return -1; | |
ba3d7dee | 387 | |
2ae3a312 ACM |
388 | if (sc->filtered) |
389 | return 0; | |
390 | ||
391 | thread = machine__findnew_thread(&trace->host, sample->tid); | |
c24ff998 | 392 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 393 | if (ttrace == NULL) |
ba3d7dee ACM |
394 | return -1; |
395 | ||
396 | ret = perf_evsel__intval(evsel, sample, "ret"); | |
397 | ||
752fde44 ACM |
398 | ttrace = thread->priv; |
399 | ||
400 | ttrace->exit_time = sample->time; | |
401 | ||
ae9ed035 | 402 | if (ttrace->entry_time) { |
60c907ab | 403 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
404 | if (trace__filter_duration(trace, duration)) |
405 | goto out; | |
406 | } else if (trace->duration_filter) | |
407 | goto out; | |
60c907ab | 408 | |
c24ff998 | 409 | trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output); |
752fde44 ACM |
410 | |
411 | if (ttrace->entry_pending) { | |
c24ff998 | 412 | fprintf(trace->output, "%-70s", ttrace->entry_str); |
752fde44 | 413 | } else { |
c24ff998 ACM |
414 | fprintf(trace->output, " ... ["); |
415 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); | |
416 | fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
417 | } |
418 | ||
ba3d7dee ACM |
419 | if (ret < 0 && sc->fmt && sc->fmt->errmsg) { |
420 | char bf[256]; | |
421 | const char *emsg = strerror_r(-ret, bf, sizeof(bf)), | |
422 | *e = audit_errno_to_name(-ret); | |
423 | ||
c24ff998 | 424 | fprintf(trace->output, ") = -1 %s %s", e, emsg); |
ba3d7dee | 425 | } else if (ret == 0 && sc->fmt && sc->fmt->timeout) |
c24ff998 | 426 | fprintf(trace->output, ") = 0 Timeout"); |
ba3d7dee | 427 | else |
c24ff998 | 428 | fprintf(trace->output, ") = %d", ret); |
ba3d7dee | 429 | |
c24ff998 | 430 | fputc('\n', trace->output); |
ae9ed035 | 431 | out: |
752fde44 ACM |
432 | ttrace->entry_pending = false; |
433 | ||
ba3d7dee ACM |
434 | return 0; |
435 | } | |
436 | ||
1302d88e ACM |
437 | static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, |
438 | struct perf_sample *sample) | |
439 | { | |
440 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
441 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
442 | struct thread *thread = machine__findnew_thread(&trace->host, sample->tid); | |
c24ff998 | 443 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
444 | |
445 | if (ttrace == NULL) | |
446 | goto out_dump; | |
447 | ||
448 | ttrace->runtime_ms += runtime_ms; | |
449 | trace->runtime_ms += runtime_ms; | |
450 | return 0; | |
451 | ||
452 | out_dump: | |
c24ff998 | 453 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e ACM |
454 | evsel->name, |
455 | perf_evsel__strval(evsel, sample, "comm"), | |
456 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
457 | runtime, | |
458 | perf_evsel__intval(evsel, sample, "vruntime")); | |
459 | return 0; | |
460 | } | |
461 | ||
f15eb531 | 462 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 463 | { |
334fe7a3 | 464 | struct perf_evlist *evlist = perf_evlist__new(); |
ba3d7dee | 465 | struct perf_evsel *evsel; |
efd5745e ACM |
466 | int err = -1, i; |
467 | unsigned long before; | |
f15eb531 | 468 | const bool forks = argc > 0; |
514f1c67 ACM |
469 | |
470 | if (evlist == NULL) { | |
c24ff998 | 471 | fprintf(trace->output, "Not enough memory to run!\n"); |
514f1c67 ACM |
472 | goto out; |
473 | } | |
474 | ||
39876e7d ACM |
475 | if (perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_enter", trace__sys_enter) || |
476 | perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit)) { | |
c24ff998 | 477 | fprintf(trace->output, "Couldn't read the raw_syscalls tracepoints information!\n"); |
514f1c67 ACM |
478 | goto out_delete_evlist; |
479 | } | |
480 | ||
1302d88e ACM |
481 | if (trace->sched && |
482 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", | |
483 | trace__sched_stat_runtime)) { | |
c24ff998 | 484 | fprintf(trace->output, "Couldn't read the sched_stat_runtime tracepoint information!\n"); |
1302d88e ACM |
485 | goto out_delete_evlist; |
486 | } | |
487 | ||
514f1c67 ACM |
488 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
489 | if (err < 0) { | |
c24ff998 | 490 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
491 | goto out_delete_evlist; |
492 | } | |
493 | ||
752fde44 ACM |
494 | err = trace__symbols_init(trace, evlist); |
495 | if (err < 0) { | |
c24ff998 | 496 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
3beb0861 | 497 | goto out_delete_maps; |
752fde44 ACM |
498 | } |
499 | ||
f77a9518 | 500 | perf_evlist__config(evlist, &trace->opts); |
514f1c67 | 501 | |
f15eb531 NK |
502 | signal(SIGCHLD, sig_handler); |
503 | signal(SIGINT, sig_handler); | |
504 | ||
505 | if (forks) { | |
6ef73ec4 | 506 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
55e162ea | 507 | argv, false, false); |
f15eb531 | 508 | if (err < 0) { |
c24ff998 | 509 | fprintf(trace->output, "Couldn't run the workload!\n"); |
3beb0861 | 510 | goto out_delete_maps; |
f15eb531 NK |
511 | } |
512 | } | |
513 | ||
514f1c67 ACM |
514 | err = perf_evlist__open(evlist); |
515 | if (err < 0) { | |
c24ff998 | 516 | fprintf(trace->output, "Couldn't create the events: %s\n", strerror(errno)); |
3beb0861 | 517 | goto out_delete_maps; |
514f1c67 ACM |
518 | } |
519 | ||
520 | err = perf_evlist__mmap(evlist, UINT_MAX, false); | |
521 | if (err < 0) { | |
c24ff998 | 522 | fprintf(trace->output, "Couldn't mmap the events: %s\n", strerror(errno)); |
3beb0861 | 523 | goto out_close_evlist; |
514f1c67 ACM |
524 | } |
525 | ||
526 | perf_evlist__enable(evlist); | |
f15eb531 NK |
527 | |
528 | if (forks) | |
529 | perf_evlist__start_workload(evlist); | |
530 | ||
752fde44 | 531 | trace->multiple_threads = evlist->threads->map[0] == -1 || evlist->threads->nr > 1; |
514f1c67 | 532 | again: |
efd5745e | 533 | before = trace->nr_events; |
514f1c67 ACM |
534 | |
535 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
536 | union perf_event *event; | |
537 | ||
538 | while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { | |
539 | const u32 type = event->header.type; | |
ba3d7dee | 540 | tracepoint_handler handler; |
514f1c67 | 541 | struct perf_sample sample; |
514f1c67 | 542 | |
efd5745e | 543 | ++trace->nr_events; |
514f1c67 | 544 | |
514f1c67 ACM |
545 | err = perf_evlist__parse_sample(evlist, event, &sample); |
546 | if (err) { | |
c24ff998 | 547 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); |
514f1c67 ACM |
548 | continue; |
549 | } | |
550 | ||
752fde44 ACM |
551 | if (trace->base_time == 0) |
552 | trace->base_time = sample.time; | |
553 | ||
554 | if (type != PERF_RECORD_SAMPLE) { | |
c24ff998 | 555 | trace__process_event(trace, &trace->host, event); |
752fde44 ACM |
556 | continue; |
557 | } | |
558 | ||
514f1c67 ACM |
559 | evsel = perf_evlist__id2evsel(evlist, sample.id); |
560 | if (evsel == NULL) { | |
c24ff998 | 561 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample.id); |
514f1c67 ACM |
562 | continue; |
563 | } | |
564 | ||
fc551f8d | 565 | if (sample.raw_data == NULL) { |
c24ff998 | 566 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", |
fc551f8d ACM |
567 | perf_evsel__name(evsel), sample.tid, |
568 | sample.cpu, sample.raw_size); | |
569 | continue; | |
570 | } | |
571 | ||
ba3d7dee ACM |
572 | handler = evsel->handler.func; |
573 | handler(trace, evsel, &sample); | |
514f1c67 ACM |
574 | } |
575 | } | |
576 | ||
efd5745e | 577 | if (trace->nr_events == before) { |
f15eb531 | 578 | if (done) |
3beb0861 | 579 | goto out_unmap_evlist; |
f15eb531 | 580 | |
514f1c67 | 581 | poll(evlist->pollfd, evlist->nr_fds, -1); |
f15eb531 NK |
582 | } |
583 | ||
584 | if (done) | |
585 | perf_evlist__disable(evlist); | |
514f1c67 ACM |
586 | |
587 | goto again; | |
588 | ||
3beb0861 NK |
589 | out_unmap_evlist: |
590 | perf_evlist__munmap(evlist); | |
591 | out_close_evlist: | |
592 | perf_evlist__close(evlist); | |
593 | out_delete_maps: | |
594 | perf_evlist__delete_maps(evlist); | |
514f1c67 ACM |
595 | out_delete_evlist: |
596 | perf_evlist__delete(evlist); | |
597 | out: | |
598 | return err; | |
599 | } | |
600 | ||
1302d88e ACM |
601 | static size_t trace__fprintf_threads_header(FILE *fp) |
602 | { | |
603 | size_t printed; | |
604 | ||
605 | printed = fprintf(fp, "\n _____________________________________________________________________\n"); | |
606 | printed += fprintf(fp," __) Summary of events (__\n\n"); | |
607 | printed += fprintf(fp," [ task - pid ] [ events ] [ ratio ] [ runtime ]\n"); | |
608 | printed += fprintf(fp," _____________________________________________________________________\n\n"); | |
609 | ||
610 | return printed; | |
611 | } | |
612 | ||
613 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) | |
614 | { | |
615 | size_t printed = trace__fprintf_threads_header(fp); | |
616 | struct rb_node *nd; | |
617 | ||
618 | for (nd = rb_first(&trace->host.threads); nd; nd = rb_next(nd)) { | |
619 | struct thread *thread = rb_entry(nd, struct thread, rb_node); | |
620 | struct thread_trace *ttrace = thread->priv; | |
621 | const char *color; | |
622 | double ratio; | |
623 | ||
624 | if (ttrace == NULL) | |
625 | continue; | |
626 | ||
627 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
628 | ||
629 | color = PERF_COLOR_NORMAL; | |
630 | if (ratio > 50.0) | |
631 | color = PERF_COLOR_RED; | |
632 | else if (ratio > 25.0) | |
633 | color = PERF_COLOR_GREEN; | |
634 | else if (ratio > 5.0) | |
635 | color = PERF_COLOR_YELLOW; | |
636 | ||
637 | printed += color_fprintf(fp, color, "%20s", thread->comm); | |
38051234 | 638 | printed += fprintf(fp, " - %-5d :%11lu [", thread->tid, ttrace->nr_events); |
1302d88e ACM |
639 | printed += color_fprintf(fp, color, "%5.1f%%", ratio); |
640 | printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms); | |
641 | } | |
642 | ||
643 | return printed; | |
644 | } | |
645 | ||
ae9ed035 ACM |
646 | static int trace__set_duration(const struct option *opt, const char *str, |
647 | int unset __maybe_unused) | |
648 | { | |
649 | struct trace *trace = opt->value; | |
650 | ||
651 | trace->duration_filter = atof(str); | |
652 | return 0; | |
653 | } | |
654 | ||
c24ff998 ACM |
655 | static int trace__open_output(struct trace *trace, const char *filename) |
656 | { | |
657 | struct stat st; | |
658 | ||
659 | if (!stat(filename, &st) && st.st_size) { | |
660 | char oldname[PATH_MAX]; | |
661 | ||
662 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
663 | unlink(oldname); | |
664 | rename(filename, oldname); | |
665 | } | |
666 | ||
667 | trace->output = fopen(filename, "w"); | |
668 | ||
669 | return trace->output == NULL ? -errno : 0; | |
670 | } | |
671 | ||
514f1c67 ACM |
672 | int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) |
673 | { | |
674 | const char * const trace_usage[] = { | |
f15eb531 NK |
675 | "perf trace [<options>] [<command>]", |
676 | "perf trace [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
677 | NULL |
678 | }; | |
679 | struct trace trace = { | |
680 | .audit_machine = audit_detect_machine(), | |
681 | .syscalls = { | |
682 | . max = -1, | |
683 | }, | |
684 | .opts = { | |
685 | .target = { | |
686 | .uid = UINT_MAX, | |
687 | .uses_mmap = true, | |
688 | }, | |
689 | .user_freq = UINT_MAX, | |
690 | .user_interval = ULLONG_MAX, | |
691 | .no_delay = true, | |
692 | .mmap_pages = 1024, | |
693 | }, | |
c24ff998 | 694 | .output = stdout, |
514f1c67 | 695 | }; |
c24ff998 | 696 | const char *output_name = NULL; |
2ae3a312 | 697 | const char *ev_qualifier_str = NULL; |
514f1c67 | 698 | const struct option trace_options[] = { |
2ae3a312 ACM |
699 | OPT_STRING('e', "expr", &ev_qualifier_str, "expr", |
700 | "list of events to trace"), | |
c24ff998 | 701 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
514f1c67 ACM |
702 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
703 | "trace events on existing process id"), | |
ac9be8ee | 704 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 705 | "trace events on existing thread id"), |
ac9be8ee | 706 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 707 | "system-wide collection from all CPUs"), |
ac9be8ee | 708 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 709 | "list of cpus to monitor"), |
ac9be8ee | 710 | OPT_BOOLEAN('i', "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 711 | "child tasks do not inherit counters"), |
ac9be8ee | 712 | OPT_UINTEGER('m', "mmap-pages", &trace.opts.mmap_pages, |
514f1c67 | 713 | "number of mmap data pages"), |
ac9be8ee | 714 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 715 | "user to profile"), |
ae9ed035 ACM |
716 | OPT_CALLBACK(0, "duration", &trace, "float", |
717 | "show only events with duration > N.M ms", | |
718 | trace__set_duration), | |
1302d88e | 719 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 720 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
514f1c67 ACM |
721 | OPT_END() |
722 | }; | |
723 | int err; | |
32caf0d1 | 724 | char bf[BUFSIZ]; |
514f1c67 ACM |
725 | |
726 | argc = parse_options(argc, argv, trace_options, trace_usage, 0); | |
514f1c67 | 727 | |
c24ff998 ACM |
728 | if (output_name != NULL) { |
729 | err = trace__open_output(&trace, output_name); | |
730 | if (err < 0) { | |
731 | perror("failed to create output file"); | |
732 | goto out; | |
733 | } | |
734 | } | |
735 | ||
2ae3a312 | 736 | if (ev_qualifier_str != NULL) { |
b059efdf ACM |
737 | const char *s = ev_qualifier_str; |
738 | ||
739 | trace.not_ev_qualifier = *s == '!'; | |
740 | if (trace.not_ev_qualifier) | |
741 | ++s; | |
742 | trace.ev_qualifier = strlist__new(true, s); | |
2ae3a312 | 743 | if (trace.ev_qualifier == NULL) { |
c24ff998 ACM |
744 | fputs("Not enough memory to parse event qualifier", |
745 | trace.output); | |
746 | err = -ENOMEM; | |
747 | goto out_close; | |
2ae3a312 ACM |
748 | } |
749 | } | |
750 | ||
32caf0d1 NK |
751 | err = perf_target__validate(&trace.opts.target); |
752 | if (err) { | |
753 | perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf)); | |
c24ff998 ACM |
754 | fprintf(trace.output, "%s", bf); |
755 | goto out_close; | |
32caf0d1 NK |
756 | } |
757 | ||
514f1c67 ACM |
758 | err = perf_target__parse_uid(&trace.opts.target); |
759 | if (err) { | |
514f1c67 | 760 | perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
761 | fprintf(trace.output, "%s", bf); |
762 | goto out_close; | |
514f1c67 ACM |
763 | } |
764 | ||
f15eb531 | 765 | if (!argc && perf_target__none(&trace.opts.target)) |
ee76120e NK |
766 | trace.opts.target.system_wide = true; |
767 | ||
1302d88e ACM |
768 | err = trace__run(&trace, argc, argv); |
769 | ||
770 | if (trace.sched && !err) | |
c24ff998 | 771 | trace__fprintf_thread_summary(&trace, trace.output); |
1302d88e | 772 | |
c24ff998 ACM |
773 | out_close: |
774 | if (output_name != NULL) | |
775 | fclose(trace.output); | |
776 | out: | |
1302d88e | 777 | return err; |
514f1c67 | 778 | } |