Commit | Line | Data |
---|---|---|
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 | ||
13d4ff3e ACM |
15 | static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long arg) |
16 | { | |
17 | return scnprintf(bf, size, "%#lx", arg); | |
18 | } | |
19 | ||
514f1c67 ACM |
20 | static struct syscall_fmt { |
21 | const char *name; | |
aec1930b | 22 | const char *alias; |
514f1c67 ACM |
23 | bool errmsg; |
24 | bool timeout; | |
04b34729 | 25 | bool hexret; |
514f1c67 | 26 | } syscall_fmts[] = { |
8b745263 | 27 | { .name = "access", .errmsg = true, }, |
aec1930b | 28 | { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, |
04b34729 ACM |
29 | { .name = "brk", .hexret = true, }, |
30 | { .name = "mmap", .hexret = true, }, | |
a14bb860 | 31 | { .name = "connect", .errmsg = true, }, |
aec1930b ACM |
32 | { .name = "fstat", .errmsg = true, .alias = "newfstat", }, |
33 | { .name = "fstatat", .errmsg = true, .alias = "newfstatat", }, | |
34 | { .name = "futex", .errmsg = true, }, | |
e5959683 | 35 | { .name = "lstat", .errmsg = true, .alias = "newlstat", }, |
04b34729 ACM |
36 | { .name = "mmap", .hexret = true, }, |
37 | { .name = "mremap", .hexret = true, }, | |
8b745263 | 38 | { .name = "open", .errmsg = true, }, |
aec1930b ACM |
39 | { .name = "poll", .errmsg = true, .timeout = true, }, |
40 | { .name = "ppoll", .errmsg = true, .timeout = true, }, | |
e5959683 ACM |
41 | { .name = "pread", .errmsg = true, .alias = "pread64", }, |
42 | { .name = "pwrite", .errmsg = true, .alias = "pwrite64", }, | |
aec1930b ACM |
43 | { .name = "read", .errmsg = true, }, |
44 | { .name = "recvfrom", .errmsg = true, }, | |
45 | { .name = "select", .errmsg = true, .timeout = true, }, | |
8b745263 | 46 | { .name = "socket", .errmsg = true, }, |
aec1930b | 47 | { .name = "stat", .errmsg = true, .alias = "newstat", }, |
e5959683 | 48 | { .name = "uname", .errmsg = true, .alias = "newuname", }, |
514f1c67 ACM |
49 | }; |
50 | ||
51 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
52 | { | |
53 | const struct syscall_fmt *fmt = fmtp; | |
54 | return strcmp(name, fmt->name); | |
55 | } | |
56 | ||
57 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
58 | { | |
59 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
60 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
61 | } | |
62 | ||
63 | struct syscall { | |
64 | struct event_format *tp_format; | |
65 | const char *name; | |
2ae3a312 | 66 | bool filtered; |
514f1c67 | 67 | struct syscall_fmt *fmt; |
13d4ff3e | 68 | size_t (**arg_scnprintf)(char *bf, size_t size, unsigned long arg); |
514f1c67 ACM |
69 | }; |
70 | ||
60c907ab ACM |
71 | static size_t fprintf_duration(unsigned long t, FILE *fp) |
72 | { | |
73 | double duration = (double)t / NSEC_PER_MSEC; | |
74 | size_t printed = fprintf(fp, "("); | |
75 | ||
76 | if (duration >= 1.0) | |
77 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); | |
78 | else if (duration >= 0.01) | |
79 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
80 | else | |
81 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 82 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
83 | } |
84 | ||
752fde44 ACM |
85 | struct thread_trace { |
86 | u64 entry_time; | |
87 | u64 exit_time; | |
88 | bool entry_pending; | |
efd5745e | 89 | unsigned long nr_events; |
752fde44 | 90 | char *entry_str; |
1302d88e | 91 | double runtime_ms; |
752fde44 ACM |
92 | }; |
93 | ||
94 | static struct thread_trace *thread_trace__new(void) | |
95 | { | |
96 | return zalloc(sizeof(struct thread_trace)); | |
97 | } | |
98 | ||
c24ff998 | 99 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 100 | { |
efd5745e ACM |
101 | struct thread_trace *ttrace; |
102 | ||
752fde44 ACM |
103 | if (thread == NULL) |
104 | goto fail; | |
105 | ||
106 | if (thread->priv == NULL) | |
107 | thread->priv = thread_trace__new(); | |
efd5745e | 108 | |
752fde44 ACM |
109 | if (thread->priv == NULL) |
110 | goto fail; | |
111 | ||
efd5745e ACM |
112 | ttrace = thread->priv; |
113 | ++ttrace->nr_events; | |
114 | ||
115 | return ttrace; | |
752fde44 | 116 | fail: |
c24ff998 | 117 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
118 | "WARNING: not enough memory, dropping samples!\n"); |
119 | return NULL; | |
120 | } | |
121 | ||
514f1c67 | 122 | struct trace { |
c24ff998 | 123 | struct perf_tool tool; |
514f1c67 ACM |
124 | int audit_machine; |
125 | struct { | |
126 | int max; | |
127 | struct syscall *table; | |
128 | } syscalls; | |
129 | struct perf_record_opts opts; | |
752fde44 ACM |
130 | struct machine host; |
131 | u64 base_time; | |
c24ff998 | 132 | FILE *output; |
efd5745e | 133 | unsigned long nr_events; |
b059efdf ACM |
134 | struct strlist *ev_qualifier; |
135 | bool not_ev_qualifier; | |
1302d88e | 136 | bool sched; |
752fde44 | 137 | bool multiple_threads; |
ae9ed035 | 138 | double duration_filter; |
1302d88e | 139 | double runtime_ms; |
514f1c67 ACM |
140 | }; |
141 | ||
ae9ed035 ACM |
142 | static bool trace__filter_duration(struct trace *trace, double t) |
143 | { | |
144 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
145 | } | |
146 | ||
752fde44 ACM |
147 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
148 | { | |
149 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
150 | ||
60c907ab | 151 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
152 | } |
153 | ||
f15eb531 NK |
154 | static bool done = false; |
155 | ||
156 | static void sig_handler(int sig __maybe_unused) | |
157 | { | |
158 | done = true; | |
159 | } | |
160 | ||
752fde44 | 161 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
60c907ab | 162 | u64 duration, u64 tstamp, FILE *fp) |
752fde44 ACM |
163 | { |
164 | size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
60c907ab | 165 | printed += fprintf_duration(duration, fp); |
752fde44 ACM |
166 | |
167 | if (trace->multiple_threads) | |
38051234 | 168 | printed += fprintf(fp, "%d ", thread->tid); |
752fde44 ACM |
169 | |
170 | return printed; | |
171 | } | |
172 | ||
c24ff998 ACM |
173 | static int trace__process_event(struct trace *trace, struct machine *machine, |
174 | union perf_event *event) | |
752fde44 ACM |
175 | { |
176 | int ret = 0; | |
177 | ||
178 | switch (event->header.type) { | |
179 | case PERF_RECORD_LOST: | |
c24ff998 | 180 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 ACM |
181 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
182 | ret = machine__process_lost_event(machine, event); | |
183 | default: | |
184 | ret = machine__process_event(machine, event); | |
185 | break; | |
186 | } | |
187 | ||
188 | return ret; | |
189 | } | |
190 | ||
c24ff998 | 191 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 ACM |
192 | union perf_event *event, |
193 | struct perf_sample *sample __maybe_unused, | |
194 | struct machine *machine) | |
195 | { | |
c24ff998 ACM |
196 | struct trace *trace = container_of(tool, struct trace, tool); |
197 | return trace__process_event(trace, machine, event); | |
752fde44 ACM |
198 | } |
199 | ||
200 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) | |
201 | { | |
202 | int err = symbol__init(); | |
203 | ||
204 | if (err) | |
205 | return err; | |
206 | ||
207 | machine__init(&trace->host, "", HOST_KERNEL_ID); | |
208 | machine__create_kernel_maps(&trace->host); | |
209 | ||
210 | if (perf_target__has_task(&trace->opts.target)) { | |
c24ff998 | 211 | err = perf_event__synthesize_thread_map(&trace->tool, evlist->threads, |
752fde44 ACM |
212 | trace__tool_process, |
213 | &trace->host); | |
214 | } else { | |
c24ff998 | 215 | err = perf_event__synthesize_threads(&trace->tool, trace__tool_process, |
752fde44 ACM |
216 | &trace->host); |
217 | } | |
218 | ||
219 | if (err) | |
220 | symbol__exit(); | |
221 | ||
222 | return err; | |
223 | } | |
224 | ||
13d4ff3e ACM |
225 | static int syscall__set_arg_fmts(struct syscall *sc) |
226 | { | |
227 | struct format_field *field; | |
228 | int idx = 0; | |
229 | ||
230 | sc->arg_scnprintf = calloc(sc->tp_format->format.nr_fields - 1, sizeof(void *)); | |
231 | if (sc->arg_scnprintf == NULL) | |
232 | return -1; | |
233 | ||
234 | for (field = sc->tp_format->format.fields->next; field; field = field->next) { | |
235 | if (field->flags & FIELD_IS_POINTER) | |
236 | sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex; | |
237 | ++idx; | |
238 | } | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
514f1c67 ACM |
243 | static int trace__read_syscall_info(struct trace *trace, int id) |
244 | { | |
245 | char tp_name[128]; | |
246 | struct syscall *sc; | |
3a531260 ACM |
247 | const char *name = audit_syscall_to_name(id, trace->audit_machine); |
248 | ||
249 | if (name == NULL) | |
250 | return -1; | |
514f1c67 ACM |
251 | |
252 | if (id > trace->syscalls.max) { | |
253 | struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
254 | ||
255 | if (nsyscalls == NULL) | |
256 | return -1; | |
257 | ||
258 | if (trace->syscalls.max != -1) { | |
259 | memset(nsyscalls + trace->syscalls.max + 1, 0, | |
260 | (id - trace->syscalls.max) * sizeof(*sc)); | |
261 | } else { | |
262 | memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); | |
263 | } | |
264 | ||
265 | trace->syscalls.table = nsyscalls; | |
266 | trace->syscalls.max = id; | |
267 | } | |
268 | ||
269 | sc = trace->syscalls.table + id; | |
3a531260 | 270 | sc->name = name; |
2ae3a312 | 271 | |
b059efdf ACM |
272 | if (trace->ev_qualifier) { |
273 | bool in = strlist__find(trace->ev_qualifier, name) != NULL; | |
274 | ||
275 | if (!(in ^ trace->not_ev_qualifier)) { | |
276 | sc->filtered = true; | |
277 | /* | |
278 | * No need to do read tracepoint information since this will be | |
279 | * filtered out. | |
280 | */ | |
281 | return 0; | |
282 | } | |
2ae3a312 ACM |
283 | } |
284 | ||
3a531260 | 285 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 286 | |
aec1930b | 287 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
514f1c67 | 288 | sc->tp_format = event_format__new("syscalls", tp_name); |
aec1930b ACM |
289 | |
290 | if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) { | |
291 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); | |
292 | sc->tp_format = event_format__new("syscalls", tp_name); | |
293 | } | |
514f1c67 | 294 | |
13d4ff3e ACM |
295 | if (sc->tp_format == NULL) |
296 | return -1; | |
297 | ||
298 | return syscall__set_arg_fmts(sc); | |
514f1c67 ACM |
299 | } |
300 | ||
752fde44 ACM |
301 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
302 | unsigned long *args) | |
514f1c67 ACM |
303 | { |
304 | int i = 0; | |
305 | size_t printed = 0; | |
306 | ||
307 | if (sc->tp_format != NULL) { | |
308 | struct format_field *field; | |
309 | ||
310 | for (field = sc->tp_format->format.fields->next; field; field = field->next) { | |
752fde44 | 311 | printed += scnprintf(bf + printed, size - printed, |
13d4ff3e ACM |
312 | "%s%s: ", printed ? ", " : "", field->name); |
313 | ||
314 | if (sc->arg_scnprintf && sc->arg_scnprintf[i]) | |
315 | printed += sc->arg_scnprintf[i](bf + printed, size - printed, args[i]); | |
316 | else | |
317 | printed += scnprintf(bf + printed, size - printed, | |
318 | "%ld", args[i]); | |
319 | ++i; | |
514f1c67 ACM |
320 | } |
321 | } else { | |
322 | while (i < 6) { | |
752fde44 ACM |
323 | printed += scnprintf(bf + printed, size - printed, |
324 | "%sarg%d: %ld", | |
325 | printed ? ", " : "", i, args[i]); | |
514f1c67 ACM |
326 | ++i; |
327 | } | |
328 | } | |
329 | ||
330 | return printed; | |
331 | } | |
332 | ||
ba3d7dee ACM |
333 | typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, |
334 | struct perf_sample *sample); | |
335 | ||
336 | static struct syscall *trace__syscall_info(struct trace *trace, | |
337 | struct perf_evsel *evsel, | |
338 | struct perf_sample *sample) | |
339 | { | |
340 | int id = perf_evsel__intval(evsel, sample, "id"); | |
341 | ||
342 | if (id < 0) { | |
adaa18bf ACM |
343 | |
344 | /* | |
345 | * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried | |
346 | * before that, leaving at a higher verbosity level till that is | |
347 | * explained. Reproduced with plain ftrace with: | |
348 | * | |
349 | * echo 1 > /t/events/raw_syscalls/sys_exit/enable | |
350 | * grep "NR -1 " /t/trace_pipe | |
351 | * | |
352 | * After generating some load on the machine. | |
353 | */ | |
354 | if (verbose > 1) { | |
355 | static u64 n; | |
356 | fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", | |
357 | id, perf_evsel__name(evsel), ++n); | |
358 | } | |
ba3d7dee ACM |
359 | return NULL; |
360 | } | |
361 | ||
362 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && | |
363 | trace__read_syscall_info(trace, id)) | |
364 | goto out_cant_read; | |
365 | ||
366 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) | |
367 | goto out_cant_read; | |
368 | ||
369 | return &trace->syscalls.table[id]; | |
370 | ||
371 | out_cant_read: | |
7c304ee0 ACM |
372 | if (verbose) { |
373 | fprintf(trace->output, "Problems reading syscall %d", id); | |
374 | if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) | |
375 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); | |
376 | fputs(" information\n", trace->output); | |
377 | } | |
ba3d7dee ACM |
378 | return NULL; |
379 | } | |
380 | ||
381 | static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, | |
382 | struct perf_sample *sample) | |
383 | { | |
752fde44 | 384 | char *msg; |
ba3d7dee | 385 | void *args; |
752fde44 | 386 | size_t printed = 0; |
2ae3a312 | 387 | struct thread *thread; |
ba3d7dee | 388 | struct syscall *sc = trace__syscall_info(trace, evsel, sample); |
2ae3a312 ACM |
389 | struct thread_trace *ttrace; |
390 | ||
391 | if (sc == NULL) | |
392 | return -1; | |
ba3d7dee | 393 | |
2ae3a312 ACM |
394 | if (sc->filtered) |
395 | return 0; | |
396 | ||
397 | thread = machine__findnew_thread(&trace->host, sample->tid); | |
c24ff998 | 398 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 399 | if (ttrace == NULL) |
ba3d7dee ACM |
400 | return -1; |
401 | ||
402 | args = perf_evsel__rawptr(evsel, sample, "args"); | |
403 | if (args == NULL) { | |
c24ff998 | 404 | fprintf(trace->output, "Problems reading syscall arguments\n"); |
ba3d7dee ACM |
405 | return -1; |
406 | } | |
407 | ||
752fde44 ACM |
408 | ttrace = thread->priv; |
409 | ||
410 | if (ttrace->entry_str == NULL) { | |
411 | ttrace->entry_str = malloc(1024); | |
412 | if (!ttrace->entry_str) | |
413 | return -1; | |
414 | } | |
415 | ||
416 | ttrace->entry_time = sample->time; | |
417 | msg = ttrace->entry_str; | |
418 | printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name); | |
419 | ||
420 | printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed, args); | |
421 | ||
422 | if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) { | |
ae9ed035 | 423 | if (!trace->duration_filter) { |
c24ff998 ACM |
424 | trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output); |
425 | fprintf(trace->output, "%-70s\n", ttrace->entry_str); | |
ae9ed035 | 426 | } |
752fde44 ACM |
427 | } else |
428 | ttrace->entry_pending = true; | |
ba3d7dee ACM |
429 | |
430 | return 0; | |
431 | } | |
432 | ||
433 | static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, | |
434 | struct perf_sample *sample) | |
435 | { | |
436 | int ret; | |
60c907ab | 437 | u64 duration = 0; |
2ae3a312 | 438 | struct thread *thread; |
ba3d7dee | 439 | struct syscall *sc = trace__syscall_info(trace, evsel, sample); |
2ae3a312 ACM |
440 | struct thread_trace *ttrace; |
441 | ||
442 | if (sc == NULL) | |
443 | return -1; | |
ba3d7dee | 444 | |
2ae3a312 ACM |
445 | if (sc->filtered) |
446 | return 0; | |
447 | ||
448 | thread = machine__findnew_thread(&trace->host, sample->tid); | |
c24ff998 | 449 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 450 | if (ttrace == NULL) |
ba3d7dee ACM |
451 | return -1; |
452 | ||
453 | ret = perf_evsel__intval(evsel, sample, "ret"); | |
454 | ||
752fde44 ACM |
455 | ttrace = thread->priv; |
456 | ||
457 | ttrace->exit_time = sample->time; | |
458 | ||
ae9ed035 | 459 | if (ttrace->entry_time) { |
60c907ab | 460 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
461 | if (trace__filter_duration(trace, duration)) |
462 | goto out; | |
463 | } else if (trace->duration_filter) | |
464 | goto out; | |
60c907ab | 465 | |
c24ff998 | 466 | trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output); |
752fde44 ACM |
467 | |
468 | if (ttrace->entry_pending) { | |
c24ff998 | 469 | fprintf(trace->output, "%-70s", ttrace->entry_str); |
752fde44 | 470 | } else { |
c24ff998 ACM |
471 | fprintf(trace->output, " ... ["); |
472 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); | |
473 | fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
474 | } |
475 | ||
da3c9a44 ACM |
476 | if (sc->fmt == NULL) { |
477 | signed_print: | |
478 | fprintf(trace->output, ") = %d", ret); | |
479 | } else if (ret < 0 && sc->fmt->errmsg) { | |
ba3d7dee ACM |
480 | char bf[256]; |
481 | const char *emsg = strerror_r(-ret, bf, sizeof(bf)), | |
482 | *e = audit_errno_to_name(-ret); | |
483 | ||
c24ff998 | 484 | fprintf(trace->output, ") = -1 %s %s", e, emsg); |
da3c9a44 | 485 | } else if (ret == 0 && sc->fmt->timeout) |
c24ff998 | 486 | fprintf(trace->output, ") = 0 Timeout"); |
04b34729 ACM |
487 | else if (sc->fmt->hexret) |
488 | fprintf(trace->output, ") = %#x", ret); | |
ba3d7dee | 489 | else |
da3c9a44 | 490 | goto signed_print; |
ba3d7dee | 491 | |
c24ff998 | 492 | fputc('\n', trace->output); |
ae9ed035 | 493 | out: |
752fde44 ACM |
494 | ttrace->entry_pending = false; |
495 | ||
ba3d7dee ACM |
496 | return 0; |
497 | } | |
498 | ||
1302d88e ACM |
499 | static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, |
500 | struct perf_sample *sample) | |
501 | { | |
502 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
503 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
504 | struct thread *thread = machine__findnew_thread(&trace->host, sample->tid); | |
c24ff998 | 505 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
506 | |
507 | if (ttrace == NULL) | |
508 | goto out_dump; | |
509 | ||
510 | ttrace->runtime_ms += runtime_ms; | |
511 | trace->runtime_ms += runtime_ms; | |
512 | return 0; | |
513 | ||
514 | out_dump: | |
c24ff998 | 515 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e ACM |
516 | evsel->name, |
517 | perf_evsel__strval(evsel, sample, "comm"), | |
518 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
519 | runtime, | |
520 | perf_evsel__intval(evsel, sample, "vruntime")); | |
521 | return 0; | |
522 | } | |
523 | ||
f15eb531 | 524 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 525 | { |
334fe7a3 | 526 | struct perf_evlist *evlist = perf_evlist__new(); |
ba3d7dee | 527 | struct perf_evsel *evsel; |
efd5745e ACM |
528 | int err = -1, i; |
529 | unsigned long before; | |
f15eb531 | 530 | const bool forks = argc > 0; |
514f1c67 ACM |
531 | |
532 | if (evlist == NULL) { | |
c24ff998 | 533 | fprintf(trace->output, "Not enough memory to run!\n"); |
514f1c67 ACM |
534 | goto out; |
535 | } | |
536 | ||
39876e7d ACM |
537 | if (perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_enter", trace__sys_enter) || |
538 | perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit)) { | |
c24ff998 | 539 | fprintf(trace->output, "Couldn't read the raw_syscalls tracepoints information!\n"); |
514f1c67 ACM |
540 | goto out_delete_evlist; |
541 | } | |
542 | ||
1302d88e ACM |
543 | if (trace->sched && |
544 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", | |
545 | trace__sched_stat_runtime)) { | |
c24ff998 | 546 | fprintf(trace->output, "Couldn't read the sched_stat_runtime tracepoint information!\n"); |
1302d88e ACM |
547 | goto out_delete_evlist; |
548 | } | |
549 | ||
514f1c67 ACM |
550 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
551 | if (err < 0) { | |
c24ff998 | 552 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
553 | goto out_delete_evlist; |
554 | } | |
555 | ||
752fde44 ACM |
556 | err = trace__symbols_init(trace, evlist); |
557 | if (err < 0) { | |
c24ff998 | 558 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
3beb0861 | 559 | goto out_delete_maps; |
752fde44 ACM |
560 | } |
561 | ||
f77a9518 | 562 | perf_evlist__config(evlist, &trace->opts); |
514f1c67 | 563 | |
f15eb531 NK |
564 | signal(SIGCHLD, sig_handler); |
565 | signal(SIGINT, sig_handler); | |
566 | ||
567 | if (forks) { | |
6ef73ec4 | 568 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
55e162ea | 569 | argv, false, false); |
f15eb531 | 570 | if (err < 0) { |
c24ff998 | 571 | fprintf(trace->output, "Couldn't run the workload!\n"); |
3beb0861 | 572 | goto out_delete_maps; |
f15eb531 NK |
573 | } |
574 | } | |
575 | ||
514f1c67 ACM |
576 | err = perf_evlist__open(evlist); |
577 | if (err < 0) { | |
c24ff998 | 578 | fprintf(trace->output, "Couldn't create the events: %s\n", strerror(errno)); |
3beb0861 | 579 | goto out_delete_maps; |
514f1c67 ACM |
580 | } |
581 | ||
582 | err = perf_evlist__mmap(evlist, UINT_MAX, false); | |
583 | if (err < 0) { | |
c24ff998 | 584 | fprintf(trace->output, "Couldn't mmap the events: %s\n", strerror(errno)); |
3beb0861 | 585 | goto out_close_evlist; |
514f1c67 ACM |
586 | } |
587 | ||
588 | perf_evlist__enable(evlist); | |
f15eb531 NK |
589 | |
590 | if (forks) | |
591 | perf_evlist__start_workload(evlist); | |
592 | ||
752fde44 | 593 | trace->multiple_threads = evlist->threads->map[0] == -1 || evlist->threads->nr > 1; |
514f1c67 | 594 | again: |
efd5745e | 595 | before = trace->nr_events; |
514f1c67 ACM |
596 | |
597 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
598 | union perf_event *event; | |
599 | ||
600 | while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { | |
601 | const u32 type = event->header.type; | |
ba3d7dee | 602 | tracepoint_handler handler; |
514f1c67 | 603 | struct perf_sample sample; |
514f1c67 | 604 | |
efd5745e | 605 | ++trace->nr_events; |
514f1c67 | 606 | |
514f1c67 ACM |
607 | err = perf_evlist__parse_sample(evlist, event, &sample); |
608 | if (err) { | |
c24ff998 | 609 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); |
514f1c67 ACM |
610 | continue; |
611 | } | |
612 | ||
752fde44 ACM |
613 | if (trace->base_time == 0) |
614 | trace->base_time = sample.time; | |
615 | ||
616 | if (type != PERF_RECORD_SAMPLE) { | |
c24ff998 | 617 | trace__process_event(trace, &trace->host, event); |
752fde44 ACM |
618 | continue; |
619 | } | |
620 | ||
514f1c67 ACM |
621 | evsel = perf_evlist__id2evsel(evlist, sample.id); |
622 | if (evsel == NULL) { | |
c24ff998 | 623 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample.id); |
514f1c67 ACM |
624 | continue; |
625 | } | |
626 | ||
fc551f8d | 627 | if (sample.raw_data == NULL) { |
c24ff998 | 628 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", |
fc551f8d ACM |
629 | perf_evsel__name(evsel), sample.tid, |
630 | sample.cpu, sample.raw_size); | |
631 | continue; | |
632 | } | |
633 | ||
ba3d7dee ACM |
634 | handler = evsel->handler.func; |
635 | handler(trace, evsel, &sample); | |
514f1c67 ACM |
636 | } |
637 | } | |
638 | ||
efd5745e | 639 | if (trace->nr_events == before) { |
f15eb531 | 640 | if (done) |
3beb0861 | 641 | goto out_unmap_evlist; |
f15eb531 | 642 | |
514f1c67 | 643 | poll(evlist->pollfd, evlist->nr_fds, -1); |
f15eb531 NK |
644 | } |
645 | ||
646 | if (done) | |
647 | perf_evlist__disable(evlist); | |
514f1c67 ACM |
648 | |
649 | goto again; | |
650 | ||
3beb0861 NK |
651 | out_unmap_evlist: |
652 | perf_evlist__munmap(evlist); | |
653 | out_close_evlist: | |
654 | perf_evlist__close(evlist); | |
655 | out_delete_maps: | |
656 | perf_evlist__delete_maps(evlist); | |
514f1c67 ACM |
657 | out_delete_evlist: |
658 | perf_evlist__delete(evlist); | |
659 | out: | |
660 | return err; | |
661 | } | |
662 | ||
1302d88e ACM |
663 | static size_t trace__fprintf_threads_header(FILE *fp) |
664 | { | |
665 | size_t printed; | |
666 | ||
667 | printed = fprintf(fp, "\n _____________________________________________________________________\n"); | |
668 | printed += fprintf(fp," __) Summary of events (__\n\n"); | |
669 | printed += fprintf(fp," [ task - pid ] [ events ] [ ratio ] [ runtime ]\n"); | |
670 | printed += fprintf(fp," _____________________________________________________________________\n\n"); | |
671 | ||
672 | return printed; | |
673 | } | |
674 | ||
675 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) | |
676 | { | |
677 | size_t printed = trace__fprintf_threads_header(fp); | |
678 | struct rb_node *nd; | |
679 | ||
680 | for (nd = rb_first(&trace->host.threads); nd; nd = rb_next(nd)) { | |
681 | struct thread *thread = rb_entry(nd, struct thread, rb_node); | |
682 | struct thread_trace *ttrace = thread->priv; | |
683 | const char *color; | |
684 | double ratio; | |
685 | ||
686 | if (ttrace == NULL) | |
687 | continue; | |
688 | ||
689 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
690 | ||
691 | color = PERF_COLOR_NORMAL; | |
692 | if (ratio > 50.0) | |
693 | color = PERF_COLOR_RED; | |
694 | else if (ratio > 25.0) | |
695 | color = PERF_COLOR_GREEN; | |
696 | else if (ratio > 5.0) | |
697 | color = PERF_COLOR_YELLOW; | |
698 | ||
699 | printed += color_fprintf(fp, color, "%20s", thread->comm); | |
38051234 | 700 | printed += fprintf(fp, " - %-5d :%11lu [", thread->tid, ttrace->nr_events); |
1302d88e ACM |
701 | printed += color_fprintf(fp, color, "%5.1f%%", ratio); |
702 | printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms); | |
703 | } | |
704 | ||
705 | return printed; | |
706 | } | |
707 | ||
ae9ed035 ACM |
708 | static int trace__set_duration(const struct option *opt, const char *str, |
709 | int unset __maybe_unused) | |
710 | { | |
711 | struct trace *trace = opt->value; | |
712 | ||
713 | trace->duration_filter = atof(str); | |
714 | return 0; | |
715 | } | |
716 | ||
c24ff998 ACM |
717 | static int trace__open_output(struct trace *trace, const char *filename) |
718 | { | |
719 | struct stat st; | |
720 | ||
721 | if (!stat(filename, &st) && st.st_size) { | |
722 | char oldname[PATH_MAX]; | |
723 | ||
724 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
725 | unlink(oldname); | |
726 | rename(filename, oldname); | |
727 | } | |
728 | ||
729 | trace->output = fopen(filename, "w"); | |
730 | ||
731 | return trace->output == NULL ? -errno : 0; | |
732 | } | |
733 | ||
514f1c67 ACM |
734 | int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) |
735 | { | |
736 | const char * const trace_usage[] = { | |
f15eb531 NK |
737 | "perf trace [<options>] [<command>]", |
738 | "perf trace [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
739 | NULL |
740 | }; | |
741 | struct trace trace = { | |
742 | .audit_machine = audit_detect_machine(), | |
743 | .syscalls = { | |
744 | . max = -1, | |
745 | }, | |
746 | .opts = { | |
747 | .target = { | |
748 | .uid = UINT_MAX, | |
749 | .uses_mmap = true, | |
750 | }, | |
751 | .user_freq = UINT_MAX, | |
752 | .user_interval = ULLONG_MAX, | |
753 | .no_delay = true, | |
754 | .mmap_pages = 1024, | |
755 | }, | |
c24ff998 | 756 | .output = stdout, |
514f1c67 | 757 | }; |
c24ff998 | 758 | const char *output_name = NULL; |
2ae3a312 | 759 | const char *ev_qualifier_str = NULL; |
514f1c67 | 760 | const struct option trace_options[] = { |
2ae3a312 ACM |
761 | OPT_STRING('e', "expr", &ev_qualifier_str, "expr", |
762 | "list of events to trace"), | |
c24ff998 | 763 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
514f1c67 ACM |
764 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
765 | "trace events on existing process id"), | |
ac9be8ee | 766 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 767 | "trace events on existing thread id"), |
ac9be8ee | 768 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 769 | "system-wide collection from all CPUs"), |
ac9be8ee | 770 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 771 | "list of cpus to monitor"), |
ac9be8ee | 772 | OPT_BOOLEAN('i', "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 773 | "child tasks do not inherit counters"), |
ac9be8ee | 774 | OPT_UINTEGER('m', "mmap-pages", &trace.opts.mmap_pages, |
514f1c67 | 775 | "number of mmap data pages"), |
ac9be8ee | 776 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 777 | "user to profile"), |
ae9ed035 ACM |
778 | OPT_CALLBACK(0, "duration", &trace, "float", |
779 | "show only events with duration > N.M ms", | |
780 | trace__set_duration), | |
1302d88e | 781 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 782 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
514f1c67 ACM |
783 | OPT_END() |
784 | }; | |
785 | int err; | |
32caf0d1 | 786 | char bf[BUFSIZ]; |
514f1c67 ACM |
787 | |
788 | argc = parse_options(argc, argv, trace_options, trace_usage, 0); | |
514f1c67 | 789 | |
c24ff998 ACM |
790 | if (output_name != NULL) { |
791 | err = trace__open_output(&trace, output_name); | |
792 | if (err < 0) { | |
793 | perror("failed to create output file"); | |
794 | goto out; | |
795 | } | |
796 | } | |
797 | ||
2ae3a312 | 798 | if (ev_qualifier_str != NULL) { |
b059efdf ACM |
799 | const char *s = ev_qualifier_str; |
800 | ||
801 | trace.not_ev_qualifier = *s == '!'; | |
802 | if (trace.not_ev_qualifier) | |
803 | ++s; | |
804 | trace.ev_qualifier = strlist__new(true, s); | |
2ae3a312 | 805 | if (trace.ev_qualifier == NULL) { |
c24ff998 ACM |
806 | fputs("Not enough memory to parse event qualifier", |
807 | trace.output); | |
808 | err = -ENOMEM; | |
809 | goto out_close; | |
2ae3a312 ACM |
810 | } |
811 | } | |
812 | ||
32caf0d1 NK |
813 | err = perf_target__validate(&trace.opts.target); |
814 | if (err) { | |
815 | perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf)); | |
c24ff998 ACM |
816 | fprintf(trace.output, "%s", bf); |
817 | goto out_close; | |
32caf0d1 NK |
818 | } |
819 | ||
514f1c67 ACM |
820 | err = perf_target__parse_uid(&trace.opts.target); |
821 | if (err) { | |
514f1c67 | 822 | perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
823 | fprintf(trace.output, "%s", bf); |
824 | goto out_close; | |
514f1c67 ACM |
825 | } |
826 | ||
f15eb531 | 827 | if (!argc && perf_target__none(&trace.opts.target)) |
ee76120e NK |
828 | trace.opts.target.system_wide = true; |
829 | ||
1302d88e ACM |
830 | err = trace__run(&trace, argc, argv); |
831 | ||
832 | if (trace.sched && !err) | |
c24ff998 | 833 | trace__fprintf_thread_summary(&trace, trace.output); |
1302d88e | 834 | |
c24ff998 ACM |
835 | out_close: |
836 | if (output_name != NULL) | |
837 | fclose(trace.output); | |
838 | out: | |
1302d88e | 839 | return err; |
514f1c67 | 840 | } |