Commit | Line | Data |
---|---|---|
94c744b6 | 1 | #include <linux/kernel.h> |
4e319027 | 2 | #include <traceevent/event-parse.h> |
94c744b6 | 3 | |
ba21594c | 4 | #include <byteswap.h> |
94c744b6 ACM |
5 | #include <unistd.h> |
6 | #include <sys/types.h> | |
a41794cd | 7 | #include <sys/mman.h> |
94c744b6 | 8 | |
e248de33 ACM |
9 | #include "evlist.h" |
10 | #include "evsel.h" | |
94c744b6 | 11 | #include "session.h" |
45694aa7 | 12 | #include "tool.h" |
a328626b | 13 | #include "sort.h" |
94c744b6 | 14 | #include "util.h" |
5d67be97 | 15 | #include "cpumap.h" |
0f6a3015 | 16 | #include "perf_regs.h" |
b0a45203 | 17 | #include "asm/bug.h" |
c446870d | 18 | #include "auxtrace.h" |
a5499b37 | 19 | #include "thread-stack.h" |
94c744b6 | 20 | |
c446870d AH |
21 | static int perf_session__deliver_event(struct perf_session *session, |
22 | union perf_event *event, | |
23 | struct perf_sample *sample, | |
24 | struct perf_tool *tool, | |
25 | u64 file_offset); | |
d10eb1eb | 26 | |
316c7136 | 27 | static int perf_session__open(struct perf_session *session) |
94c744b6 | 28 | { |
316c7136 | 29 | struct perf_data_file *file = session->file; |
8dc58101 | 30 | |
316c7136 | 31 | if (perf_session__read_header(session) < 0) { |
e87b4911 | 32 | pr_err("incompatible file format (rerun with -v to learn more)\n"); |
6a4d98d7 | 33 | return -1; |
94c744b6 ACM |
34 | } |
35 | ||
cc9784bd JO |
36 | if (perf_data_file__is_pipe(file)) |
37 | return 0; | |
38 | ||
316c7136 | 39 | if (!perf_evlist__valid_sample_type(session->evlist)) { |
e87b4911 | 40 | pr_err("non matching sample_type\n"); |
6a4d98d7 | 41 | return -1; |
c2a70653 ACM |
42 | } |
43 | ||
316c7136 | 44 | if (!perf_evlist__valid_sample_id_all(session->evlist)) { |
e87b4911 | 45 | pr_err("non matching sample_id_all\n"); |
6a4d98d7 | 46 | return -1; |
c2a70653 ACM |
47 | } |
48 | ||
316c7136 | 49 | if (!perf_evlist__valid_read_format(session->evlist)) { |
e87b4911 | 50 | pr_err("non matching read_format\n"); |
6a4d98d7 | 51 | return -1; |
9ede473c JO |
52 | } |
53 | ||
94c744b6 | 54 | return 0; |
94c744b6 ACM |
55 | } |
56 | ||
7b56cce2 | 57 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 58 | { |
7b56cce2 ACM |
59 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
60 | ||
7b56cce2 | 61 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
62 | } |
63 | ||
316c7136 | 64 | int perf_session__create_kernel_maps(struct perf_session *session) |
a1645ce1 | 65 | { |
316c7136 | 66 | int ret = machine__create_kernel_maps(&session->machines.host); |
a1645ce1 | 67 | |
a1645ce1 | 68 | if (ret >= 0) |
316c7136 | 69 | ret = machines__create_guest_kernel_maps(&session->machines); |
a1645ce1 ZY |
70 | return ret; |
71 | } | |
72 | ||
316c7136 | 73 | static void perf_session__destroy_kernel_maps(struct perf_session *session) |
076c6e45 | 74 | { |
316c7136 | 75 | machines__destroy_kernel_maps(&session->machines); |
076c6e45 ACM |
76 | } |
77 | ||
cfe1c414 AH |
78 | static bool perf_session__has_comm_exec(struct perf_session *session) |
79 | { | |
80 | struct perf_evsel *evsel; | |
81 | ||
82 | evlist__for_each(session->evlist, evsel) { | |
83 | if (evsel->attr.comm_exec) | |
84 | return true; | |
85 | } | |
86 | ||
87 | return false; | |
88 | } | |
89 | ||
90 | static void perf_session__set_comm_exec(struct perf_session *session) | |
91 | { | |
92 | bool comm_exec = perf_session__has_comm_exec(session); | |
93 | ||
94 | machines__set_comm_exec(&session->machines, comm_exec); | |
95 | } | |
96 | ||
d10eb1eb | 97 | static int ordered_events__deliver_event(struct ordered_events *oe, |
9870d780 | 98 | struct ordered_event *event) |
d10eb1eb | 99 | { |
9870d780 ACM |
100 | struct perf_sample sample; |
101 | struct perf_session *session = container_of(oe, struct perf_session, | |
102 | ordered_events); | |
103 | int ret = perf_evlist__parse_sample(session->evlist, event->event, &sample); | |
104 | ||
105 | if (ret) { | |
106 | pr_err("Can't parse sample, err = %d\n", ret); | |
107 | return ret; | |
108 | } | |
109 | ||
c446870d AH |
110 | return perf_session__deliver_event(session, event->event, &sample, |
111 | session->tool, event->file_offset); | |
d10eb1eb ACM |
112 | } |
113 | ||
f5fc1412 JO |
114 | struct perf_session *perf_session__new(struct perf_data_file *file, |
115 | bool repipe, struct perf_tool *tool) | |
94c744b6 | 116 | { |
316c7136 | 117 | struct perf_session *session = zalloc(sizeof(*session)); |
efad1415 | 118 | |
316c7136 | 119 | if (!session) |
94c744b6 ACM |
120 | goto out; |
121 | ||
316c7136 | 122 | session->repipe = repipe; |
9870d780 | 123 | session->tool = tool; |
99fa2984 | 124 | INIT_LIST_HEAD(&session->auxtrace_index); |
316c7136 | 125 | machines__init(&session->machines); |
9870d780 | 126 | ordered_events__init(&session->ordered_events, ordered_events__deliver_event); |
94c744b6 | 127 | |
6a4d98d7 JO |
128 | if (file) { |
129 | if (perf_data_file__open(file)) | |
64abebf7 | 130 | goto out_delete; |
6a4d98d7 | 131 | |
316c7136 | 132 | session->file = file; |
6a4d98d7 JO |
133 | |
134 | if (perf_data_file__is_read(file)) { | |
316c7136 | 135 | if (perf_session__open(session) < 0) |
6a4d98d7 JO |
136 | goto out_close; |
137 | ||
316c7136 | 138 | perf_session__set_id_hdr_size(session); |
cfe1c414 | 139 | perf_session__set_comm_exec(session); |
6a4d98d7 | 140 | } |
4cde998d ACM |
141 | } else { |
142 | session->machines.host.env = &perf_env; | |
6a4d98d7 JO |
143 | } |
144 | ||
145 | if (!file || perf_data_file__is_write(file)) { | |
64abebf7 ACM |
146 | /* |
147 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 148 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 | 149 | */ |
316c7136 | 150 | if (perf_session__create_kernel_maps(session) < 0) |
a5c2a4c9 | 151 | pr_warning("Cannot read kernel map\n"); |
64abebf7 | 152 | } |
d549c769 | 153 | |
45694aa7 | 154 | if (tool && tool->ordering_requires_timestamps && |
0a8cb85c | 155 | tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { |
21ef97f0 | 156 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
0a8cb85c | 157 | tool->ordered_events = false; |
d10eb1eb | 158 | } |
21ef97f0 | 159 | |
316c7136 | 160 | return session; |
6a4d98d7 JO |
161 | |
162 | out_close: | |
163 | perf_data_file__close(file); | |
164 | out_delete: | |
316c7136 | 165 | perf_session__delete(session); |
6a4d98d7 | 166 | out: |
4aa65636 | 167 | return NULL; |
94c744b6 ACM |
168 | } |
169 | ||
b424eba2 ACM |
170 | static void perf_session__delete_threads(struct perf_session *session) |
171 | { | |
876650e6 | 172 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
173 | } |
174 | ||
316c7136 | 175 | void perf_session__delete(struct perf_session *session) |
94c744b6 | 176 | { |
c446870d | 177 | auxtrace__free(session); |
99fa2984 | 178 | auxtrace_index__free(&session->auxtrace_index); |
316c7136 | 179 | perf_session__destroy_kernel_maps(session); |
316c7136 | 180 | perf_session__delete_threads(session); |
f0ce888c | 181 | perf_env__exit(&session->header.env); |
316c7136 ACM |
182 | machines__exit(&session->machines); |
183 | if (session->file) | |
184 | perf_data_file__close(session->file); | |
185 | free(session); | |
94c744b6 | 186 | } |
a328626b | 187 | |
47c3d109 AH |
188 | static int process_event_synth_tracing_data_stub(struct perf_tool *tool |
189 | __maybe_unused, | |
190 | union perf_event *event | |
1d037ca1 IT |
191 | __maybe_unused, |
192 | struct perf_session *session | |
193 | __maybe_unused) | |
d20deb64 ACM |
194 | { |
195 | dump_printf(": unhandled!\n"); | |
196 | return 0; | |
197 | } | |
198 | ||
47c3d109 AH |
199 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
200 | union perf_event *event __maybe_unused, | |
1d037ca1 IT |
201 | struct perf_evlist **pevlist |
202 | __maybe_unused) | |
10d0f086 ACM |
203 | { |
204 | dump_printf(": unhandled!\n"); | |
205 | return 0; | |
206 | } | |
207 | ||
1d037ca1 IT |
208 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
209 | union perf_event *event __maybe_unused, | |
210 | struct perf_sample *sample __maybe_unused, | |
211 | struct perf_evsel *evsel __maybe_unused, | |
212 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
213 | { |
214 | dump_printf(": unhandled!\n"); | |
215 | return 0; | |
216 | } | |
217 | ||
1d037ca1 IT |
218 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
219 | union perf_event *event __maybe_unused, | |
220 | struct perf_sample *sample __maybe_unused, | |
221 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
222 | { |
223 | dump_printf(": unhandled!\n"); | |
224 | return 0; | |
225 | } | |
226 | ||
d704ebda ACM |
227 | static int process_build_id_stub(struct perf_tool *tool __maybe_unused, |
228 | union perf_event *event __maybe_unused, | |
229 | struct perf_session *session __maybe_unused) | |
230 | { | |
231 | dump_printf(": unhandled!\n"); | |
232 | return 0; | |
233 | } | |
234 | ||
1d037ca1 IT |
235 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
236 | union perf_event *event __maybe_unused, | |
d704ebda | 237 | struct ordered_events *oe __maybe_unused) |
743eb868 ACM |
238 | { |
239 | dump_printf(": unhandled!\n"); | |
240 | return 0; | |
241 | } | |
242 | ||
45694aa7 | 243 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 | 244 | union perf_event *event, |
d704ebda | 245 | struct ordered_events *oe); |
d6b17beb | 246 | |
3c659eed AH |
247 | static int process_id_index_stub(struct perf_tool *tool __maybe_unused, |
248 | union perf_event *event __maybe_unused, | |
249 | struct perf_session *perf_session | |
250 | __maybe_unused) | |
251 | { | |
252 | dump_printf(": unhandled!\n"); | |
253 | return 0; | |
254 | } | |
255 | ||
a16ac023 AH |
256 | static int process_event_auxtrace_info_stub(struct perf_tool *tool __maybe_unused, |
257 | union perf_event *event __maybe_unused, | |
258 | struct perf_session *session __maybe_unused) | |
259 | { | |
260 | dump_printf(": unhandled!\n"); | |
261 | return 0; | |
262 | } | |
263 | ||
264 | static int skipn(int fd, off_t n) | |
265 | { | |
266 | char buf[4096]; | |
267 | ssize_t ret; | |
268 | ||
269 | while (n > 0) { | |
270 | ret = read(fd, buf, min(n, (off_t)sizeof(buf))); | |
271 | if (ret <= 0) | |
272 | return ret; | |
273 | n -= ret; | |
274 | } | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused, | |
280 | union perf_event *event, | |
281 | struct perf_session *session | |
282 | __maybe_unused) | |
283 | { | |
284 | dump_printf(": unhandled!\n"); | |
285 | if (perf_data_file__is_pipe(session->file)) | |
286 | skipn(perf_data_file__fd(session->file), event->auxtrace.size); | |
287 | return event->auxtrace.size; | |
288 | } | |
289 | ||
e9bf54d2 AH |
290 | static |
291 | int process_event_auxtrace_error_stub(struct perf_tool *tool __maybe_unused, | |
292 | union perf_event *event __maybe_unused, | |
293 | struct perf_session *session __maybe_unused) | |
294 | { | |
295 | dump_printf(": unhandled!\n"); | |
296 | return 0; | |
297 | } | |
298 | ||
5f3339d2 JO |
299 | |
300 | static | |
301 | int process_event_thread_map_stub(struct perf_tool *tool __maybe_unused, | |
302 | union perf_event *event __maybe_unused, | |
303 | struct perf_session *session __maybe_unused) | |
304 | { | |
305 | dump_printf(": unhandled!\n"); | |
306 | return 0; | |
307 | } | |
308 | ||
9c501402 | 309 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 310 | { |
45694aa7 ACM |
311 | if (tool->sample == NULL) |
312 | tool->sample = process_event_sample_stub; | |
313 | if (tool->mmap == NULL) | |
314 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
315 | if (tool->mmap2 == NULL) |
316 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
317 | if (tool->comm == NULL) |
318 | tool->comm = process_event_stub; | |
319 | if (tool->fork == NULL) | |
320 | tool->fork = process_event_stub; | |
321 | if (tool->exit == NULL) | |
322 | tool->exit = process_event_stub; | |
323 | if (tool->lost == NULL) | |
324 | tool->lost = perf_event__process_lost; | |
c4937a91 KL |
325 | if (tool->lost_samples == NULL) |
326 | tool->lost_samples = perf_event__process_lost_samples; | |
4a96f7a0 AH |
327 | if (tool->aux == NULL) |
328 | tool->aux = perf_event__process_aux; | |
0ad21f68 AH |
329 | if (tool->itrace_start == NULL) |
330 | tool->itrace_start = perf_event__process_itrace_start; | |
0286039f AH |
331 | if (tool->context_switch == NULL) |
332 | tool->context_switch = perf_event__process_switch; | |
45694aa7 ACM |
333 | if (tool->read == NULL) |
334 | tool->read = process_event_sample_stub; | |
335 | if (tool->throttle == NULL) | |
336 | tool->throttle = process_event_stub; | |
337 | if (tool->unthrottle == NULL) | |
338 | tool->unthrottle = process_event_stub; | |
339 | if (tool->attr == NULL) | |
340 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
341 | if (tool->tracing_data == NULL) |
342 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
343 | if (tool->build_id == NULL) | |
d704ebda | 344 | tool->build_id = process_build_id_stub; |
45694aa7 | 345 | if (tool->finished_round == NULL) { |
0a8cb85c | 346 | if (tool->ordered_events) |
45694aa7 | 347 | tool->finished_round = process_finished_round; |
d6b17beb | 348 | else |
45694aa7 | 349 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 350 | } |
3c659eed AH |
351 | if (tool->id_index == NULL) |
352 | tool->id_index = process_id_index_stub; | |
a16ac023 AH |
353 | if (tool->auxtrace_info == NULL) |
354 | tool->auxtrace_info = process_event_auxtrace_info_stub; | |
355 | if (tool->auxtrace == NULL) | |
356 | tool->auxtrace = process_event_auxtrace_stub; | |
e9bf54d2 AH |
357 | if (tool->auxtrace_error == NULL) |
358 | tool->auxtrace_error = process_event_auxtrace_error_stub; | |
5f3339d2 JO |
359 | if (tool->thread_map == NULL) |
360 | tool->thread_map = process_event_thread_map_stub; | |
06aae590 | 361 | } |
48000a1a | 362 | |
268fb20f JO |
363 | static void swap_sample_id_all(union perf_event *event, void *data) |
364 | { | |
365 | void *end = (void *) event + event->header.size; | |
366 | int size = end - data; | |
367 | ||
368 | BUG_ON(size % sizeof(u64)); | |
369 | mem_bswap_64(data, size); | |
370 | } | |
371 | ||
372 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 373 | bool sample_id_all __maybe_unused) |
ba21594c | 374 | { |
8115d60c ACM |
375 | struct perf_event_header *hdr = &event->header; |
376 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
377 | } |
378 | ||
268fb20f | 379 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 380 | { |
8115d60c ACM |
381 | event->comm.pid = bswap_32(event->comm.pid); |
382 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
383 | |
384 | if (sample_id_all) { | |
385 | void *data = &event->comm.comm; | |
386 | ||
9ac3e487 | 387 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
388 | swap_sample_id_all(event, data); |
389 | } | |
ba21594c ACM |
390 | } |
391 | ||
268fb20f JO |
392 | static void perf_event__mmap_swap(union perf_event *event, |
393 | bool sample_id_all) | |
ba21594c | 394 | { |
8115d60c ACM |
395 | event->mmap.pid = bswap_32(event->mmap.pid); |
396 | event->mmap.tid = bswap_32(event->mmap.tid); | |
397 | event->mmap.start = bswap_64(event->mmap.start); | |
398 | event->mmap.len = bswap_64(event->mmap.len); | |
399 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
400 | |
401 | if (sample_id_all) { | |
402 | void *data = &event->mmap.filename; | |
403 | ||
9ac3e487 | 404 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
405 | swap_sample_id_all(event, data); |
406 | } | |
ba21594c ACM |
407 | } |
408 | ||
5c5e854b SE |
409 | static void perf_event__mmap2_swap(union perf_event *event, |
410 | bool sample_id_all) | |
411 | { | |
412 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
413 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
414 | event->mmap2.start = bswap_64(event->mmap2.start); | |
415 | event->mmap2.len = bswap_64(event->mmap2.len); | |
416 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
417 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
418 | event->mmap2.min = bswap_32(event->mmap2.min); | |
419 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
420 | ||
421 | if (sample_id_all) { | |
422 | void *data = &event->mmap2.filename; | |
423 | ||
424 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
425 | swap_sample_id_all(event, data); | |
426 | } | |
427 | } | |
268fb20f | 428 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 429 | { |
8115d60c ACM |
430 | event->fork.pid = bswap_32(event->fork.pid); |
431 | event->fork.tid = bswap_32(event->fork.tid); | |
432 | event->fork.ppid = bswap_32(event->fork.ppid); | |
433 | event->fork.ptid = bswap_32(event->fork.ptid); | |
434 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
435 | |
436 | if (sample_id_all) | |
437 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
438 | } |
439 | ||
268fb20f | 440 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 441 | { |
8115d60c ACM |
442 | event->read.pid = bswap_32(event->read.pid); |
443 | event->read.tid = bswap_32(event->read.tid); | |
444 | event->read.value = bswap_64(event->read.value); | |
445 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
446 | event->read.time_running = bswap_64(event->read.time_running); | |
447 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
448 | |
449 | if (sample_id_all) | |
450 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
451 | } |
452 | ||
4a96f7a0 AH |
453 | static void perf_event__aux_swap(union perf_event *event, bool sample_id_all) |
454 | { | |
455 | event->aux.aux_offset = bswap_64(event->aux.aux_offset); | |
456 | event->aux.aux_size = bswap_64(event->aux.aux_size); | |
457 | event->aux.flags = bswap_64(event->aux.flags); | |
458 | ||
459 | if (sample_id_all) | |
460 | swap_sample_id_all(event, &event->aux + 1); | |
461 | } | |
462 | ||
0ad21f68 AH |
463 | static void perf_event__itrace_start_swap(union perf_event *event, |
464 | bool sample_id_all) | |
465 | { | |
466 | event->itrace_start.pid = bswap_32(event->itrace_start.pid); | |
467 | event->itrace_start.tid = bswap_32(event->itrace_start.tid); | |
468 | ||
469 | if (sample_id_all) | |
470 | swap_sample_id_all(event, &event->itrace_start + 1); | |
471 | } | |
472 | ||
0286039f AH |
473 | static void perf_event__switch_swap(union perf_event *event, bool sample_id_all) |
474 | { | |
475 | if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) { | |
476 | event->context_switch.next_prev_pid = | |
477 | bswap_32(event->context_switch.next_prev_pid); | |
478 | event->context_switch.next_prev_tid = | |
479 | bswap_32(event->context_switch.next_prev_tid); | |
480 | } | |
481 | ||
482 | if (sample_id_all) | |
483 | swap_sample_id_all(event, &event->context_switch + 1); | |
484 | } | |
485 | ||
dd96c46b JO |
486 | static void perf_event__throttle_swap(union perf_event *event, |
487 | bool sample_id_all) | |
488 | { | |
489 | event->throttle.time = bswap_64(event->throttle.time); | |
490 | event->throttle.id = bswap_64(event->throttle.id); | |
491 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
492 | ||
493 | if (sample_id_all) | |
494 | swap_sample_id_all(event, &event->throttle + 1); | |
495 | } | |
496 | ||
e108c66e JO |
497 | static u8 revbyte(u8 b) |
498 | { | |
499 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
500 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
501 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
502 | return (u8) rev; | |
503 | } | |
504 | ||
505 | /* | |
506 | * XXX this is hack in attempt to carry flags bitfield | |
507 | * throught endian village. ABI says: | |
508 | * | |
509 | * Bit-fields are allocated from right to left (least to most significant) | |
510 | * on little-endian implementations and from left to right (most to least | |
511 | * significant) on big-endian implementations. | |
512 | * | |
513 | * The above seems to be byte specific, so we need to reverse each | |
514 | * byte of the bitfield. 'Internet' also says this might be implementation | |
515 | * specific and we probably need proper fix and carry perf_event_attr | |
516 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
517 | * to work for now. | |
518 | */ | |
519 | static void swap_bitfield(u8 *p, unsigned len) | |
520 | { | |
521 | unsigned i; | |
522 | ||
523 | for (i = 0; i < len; i++) { | |
524 | *p = revbyte(*p); | |
525 | p++; | |
526 | } | |
527 | } | |
528 | ||
eda3913b DA |
529 | /* exported for swapping attributes in file header */ |
530 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
531 | { | |
532 | attr->type = bswap_32(attr->type); | |
533 | attr->size = bswap_32(attr->size); | |
b30b6172 WN |
534 | |
535 | #define bswap_safe(f, n) \ | |
536 | (attr->size > (offsetof(struct perf_event_attr, f) + \ | |
537 | sizeof(attr->f) * (n))) | |
538 | #define bswap_field(f, sz) \ | |
539 | do { \ | |
540 | if (bswap_safe(f, 0)) \ | |
541 | attr->f = bswap_##sz(attr->f); \ | |
542 | } while(0) | |
543 | #define bswap_field_32(f) bswap_field(f, 32) | |
544 | #define bswap_field_64(f) bswap_field(f, 64) | |
545 | ||
546 | bswap_field_64(config); | |
547 | bswap_field_64(sample_period); | |
548 | bswap_field_64(sample_type); | |
549 | bswap_field_64(read_format); | |
550 | bswap_field_32(wakeup_events); | |
551 | bswap_field_32(bp_type); | |
552 | bswap_field_64(bp_addr); | |
553 | bswap_field_64(bp_len); | |
554 | bswap_field_64(branch_sample_type); | |
555 | bswap_field_64(sample_regs_user); | |
556 | bswap_field_32(sample_stack_user); | |
557 | bswap_field_32(aux_watermark); | |
558 | ||
559 | /* | |
560 | * After read_format are bitfields. Check read_format because | |
561 | * we are unable to use offsetof on bitfield. | |
562 | */ | |
563 | if (bswap_safe(read_format, 1)) | |
564 | swap_bitfield((u8 *) (&attr->read_format + 1), | |
565 | sizeof(u64)); | |
566 | #undef bswap_field_64 | |
567 | #undef bswap_field_32 | |
568 | #undef bswap_field | |
569 | #undef bswap_safe | |
eda3913b DA |
570 | } |
571 | ||
268fb20f | 572 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 573 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
574 | { |
575 | size_t size; | |
576 | ||
eda3913b | 577 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 578 | |
8115d60c ACM |
579 | size = event->header.size; |
580 | size -= (void *)&event->attr.id - (void *)event; | |
581 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
582 | } |
583 | ||
268fb20f | 584 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 585 | bool sample_id_all __maybe_unused) |
cd19a035 | 586 | { |
8115d60c ACM |
587 | event->event_type.event_type.event_id = |
588 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
589 | } |
590 | ||
268fb20f | 591 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 592 | bool sample_id_all __maybe_unused) |
9215545e | 593 | { |
8115d60c | 594 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
595 | } |
596 | ||
a16ac023 AH |
597 | static void perf_event__auxtrace_info_swap(union perf_event *event, |
598 | bool sample_id_all __maybe_unused) | |
599 | { | |
600 | size_t size; | |
601 | ||
602 | event->auxtrace_info.type = bswap_32(event->auxtrace_info.type); | |
603 | ||
604 | size = event->header.size; | |
605 | size -= (void *)&event->auxtrace_info.priv - (void *)event; | |
606 | mem_bswap_64(event->auxtrace_info.priv, size); | |
607 | } | |
608 | ||
609 | static void perf_event__auxtrace_swap(union perf_event *event, | |
610 | bool sample_id_all __maybe_unused) | |
611 | { | |
612 | event->auxtrace.size = bswap_64(event->auxtrace.size); | |
613 | event->auxtrace.offset = bswap_64(event->auxtrace.offset); | |
614 | event->auxtrace.reference = bswap_64(event->auxtrace.reference); | |
615 | event->auxtrace.idx = bswap_32(event->auxtrace.idx); | |
616 | event->auxtrace.tid = bswap_32(event->auxtrace.tid); | |
617 | event->auxtrace.cpu = bswap_32(event->auxtrace.cpu); | |
618 | } | |
619 | ||
e9bf54d2 AH |
620 | static void perf_event__auxtrace_error_swap(union perf_event *event, |
621 | bool sample_id_all __maybe_unused) | |
622 | { | |
623 | event->auxtrace_error.type = bswap_32(event->auxtrace_error.type); | |
624 | event->auxtrace_error.code = bswap_32(event->auxtrace_error.code); | |
625 | event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu); | |
626 | event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid); | |
627 | event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid); | |
628 | event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip); | |
629 | } | |
630 | ||
5f3339d2 JO |
631 | static void perf_event__thread_map_swap(union perf_event *event, |
632 | bool sample_id_all __maybe_unused) | |
633 | { | |
634 | unsigned i; | |
635 | ||
636 | event->thread_map.nr = bswap_64(event->thread_map.nr); | |
637 | ||
638 | for (i = 0; i < event->thread_map.nr; i++) | |
639 | event->thread_map.entries[i].pid = bswap_64(event->thread_map.entries[i].pid); | |
640 | } | |
641 | ||
268fb20f JO |
642 | typedef void (*perf_event__swap_op)(union perf_event *event, |
643 | bool sample_id_all); | |
ba21594c | 644 | |
8115d60c ACM |
645 | static perf_event__swap_op perf_event__swap_ops[] = { |
646 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 647 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
648 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
649 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
650 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
651 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
652 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
653 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
654 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 655 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
4a96f7a0 | 656 | [PERF_RECORD_AUX] = perf_event__aux_swap, |
0ad21f68 | 657 | [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap, |
c4937a91 | 658 | [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap, |
0286039f AH |
659 | [PERF_RECORD_SWITCH] = perf_event__switch_swap, |
660 | [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap, | |
eda3913b | 661 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
662 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
663 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
664 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
3c659eed | 665 | [PERF_RECORD_ID_INDEX] = perf_event__all64_swap, |
a16ac023 AH |
666 | [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap, |
667 | [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap, | |
e9bf54d2 | 668 | [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap, |
5f3339d2 | 669 | [PERF_RECORD_THREAD_MAP] = perf_event__thread_map_swap, |
8115d60c | 670 | [PERF_RECORD_HEADER_MAX] = NULL, |
ba21594c ACM |
671 | }; |
672 | ||
d6b17beb FW |
673 | /* |
674 | * When perf record finishes a pass on every buffers, it records this pseudo | |
675 | * event. | |
676 | * We record the max timestamp t found in the pass n. | |
677 | * Assuming these timestamps are monotonic across cpus, we know that if | |
678 | * a buffer still has events with timestamps below t, they will be all | |
679 | * available and then read in the pass n + 1. | |
680 | * Hence when we start to read the pass n + 2, we can safely flush every | |
681 | * events with timestamps below t. | |
682 | * | |
683 | * ============ PASS n ================= | |
684 | * CPU 0 | CPU 1 | |
685 | * | | |
686 | * cnt1 timestamps | cnt2 timestamps | |
687 | * 1 | 2 | |
688 | * 2 | 3 | |
689 | * - | 4 <--- max recorded | |
690 | * | |
691 | * ============ PASS n + 1 ============== | |
692 | * CPU 0 | CPU 1 | |
693 | * | | |
694 | * cnt1 timestamps | cnt2 timestamps | |
695 | * 3 | 5 | |
696 | * 4 | 6 | |
697 | * 5 | 7 <---- max recorded | |
698 | * | |
699 | * Flush every events below timestamp 4 | |
700 | * | |
701 | * ============ PASS n + 2 ============== | |
702 | * CPU 0 | CPU 1 | |
703 | * | | |
704 | * cnt1 timestamps | cnt2 timestamps | |
705 | * 6 | 8 | |
706 | * 7 | 9 | |
707 | * - | 10 | |
708 | * | |
709 | * Flush every events below timestamp 7 | |
710 | * etc... | |
711 | */ | |
b7b61cbe | 712 | static int process_finished_round(struct perf_tool *tool __maybe_unused, |
1d037ca1 | 713 | union perf_event *event __maybe_unused, |
d704ebda | 714 | struct ordered_events *oe) |
d6b17beb | 715 | { |
5531e162 AH |
716 | if (dump_trace) |
717 | fprintf(stdout, "\n"); | |
b7b61cbe | 718 | return ordered_events__flush(oe, OE_FLUSH__ROUND); |
d6b17beb FW |
719 | } |
720 | ||
b7b61cbe ACM |
721 | int perf_session__queue_event(struct perf_session *s, union perf_event *event, |
722 | struct perf_sample *sample, u64 file_offset) | |
c61e52ee | 723 | { |
4a6b362f | 724 | return ordered_events__queue(&s->ordered_events, event, sample, file_offset); |
640c03ce | 725 | } |
c61e52ee | 726 | |
384b6055 | 727 | static void callchain__lbr_callstack_printf(struct perf_sample *sample) |
640c03ce | 728 | { |
384b6055 KL |
729 | struct ip_callchain *callchain = sample->callchain; |
730 | struct branch_stack *lbr_stack = sample->branch_stack; | |
731 | u64 kernel_callchain_nr = callchain->nr; | |
640c03ce | 732 | unsigned int i; |
c61e52ee | 733 | |
384b6055 KL |
734 | for (i = 0; i < kernel_callchain_nr; i++) { |
735 | if (callchain->ips[i] == PERF_CONTEXT_USER) | |
736 | break; | |
737 | } | |
738 | ||
739 | if ((i != kernel_callchain_nr) && lbr_stack->nr) { | |
740 | u64 total_nr; | |
741 | /* | |
742 | * LBR callstack can only get user call chain, | |
743 | * i is kernel call chain number, | |
744 | * 1 is PERF_CONTEXT_USER. | |
745 | * | |
746 | * The user call chain is stored in LBR registers. | |
747 | * LBR are pair registers. The caller is stored | |
748 | * in "from" register, while the callee is stored | |
749 | * in "to" register. | |
750 | * For example, there is a call stack | |
751 | * "A"->"B"->"C"->"D". | |
752 | * The LBR registers will recorde like | |
753 | * "C"->"D", "B"->"C", "A"->"B". | |
754 | * So only the first "to" register and all "from" | |
755 | * registers are needed to construct the whole stack. | |
756 | */ | |
757 | total_nr = i + 1 + lbr_stack->nr + 1; | |
758 | kernel_callchain_nr = i + 1; | |
759 | ||
760 | printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr); | |
761 | ||
762 | for (i = 0; i < kernel_callchain_nr; i++) | |
763 | printf("..... %2d: %016" PRIx64 "\n", | |
764 | i, callchain->ips[i]); | |
765 | ||
766 | printf("..... %2d: %016" PRIx64 "\n", | |
767 | (int)(kernel_callchain_nr), lbr_stack->entries[0].to); | |
768 | for (i = 0; i < lbr_stack->nr; i++) | |
769 | printf("..... %2d: %016" PRIx64 "\n", | |
770 | (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from); | |
771 | } | |
772 | } | |
773 | ||
774 | static void callchain__printf(struct perf_evsel *evsel, | |
775 | struct perf_sample *sample) | |
776 | { | |
777 | unsigned int i; | |
778 | struct ip_callchain *callchain = sample->callchain; | |
779 | ||
780 | if (has_branch_callstack(evsel)) | |
781 | callchain__lbr_callstack_printf(sample); | |
782 | ||
783 | printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr); | |
640c03ce | 784 | |
384b6055 | 785 | for (i = 0; i < callchain->nr; i++) |
9486aa38 | 786 | printf("..... %2d: %016" PRIx64 "\n", |
384b6055 | 787 | i, callchain->ips[i]); |
c61e52ee FW |
788 | } |
789 | ||
b5387528 RAV |
790 | static void branch_stack__printf(struct perf_sample *sample) |
791 | { | |
792 | uint64_t i; | |
793 | ||
794 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
795 | ||
0e332f03 AK |
796 | for (i = 0; i < sample->branch_stack->nr; i++) { |
797 | struct branch_entry *e = &sample->branch_stack->entries[i]; | |
798 | ||
799 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n", | |
800 | i, e->from, e->to, | |
801 | e->flags.cycles, | |
802 | e->flags.mispred ? "M" : " ", | |
803 | e->flags.predicted ? "P" : " ", | |
804 | e->flags.abort ? "A" : " ", | |
805 | e->flags.in_tx ? "T" : " ", | |
806 | (unsigned)e->flags.reserved); | |
807 | } | |
b5387528 RAV |
808 | } |
809 | ||
0f6a3015 JO |
810 | static void regs_dump__printf(u64 mask, u64 *regs) |
811 | { | |
812 | unsigned rid, i = 0; | |
813 | ||
814 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
815 | u64 val = regs[i++]; | |
816 | ||
817 | printf(".... %-5s 0x%" PRIx64 "\n", | |
818 | perf_reg_name(rid), val); | |
819 | } | |
820 | } | |
821 | ||
6a21c0b5 SE |
822 | static const char *regs_abi[] = { |
823 | [PERF_SAMPLE_REGS_ABI_NONE] = "none", | |
824 | [PERF_SAMPLE_REGS_ABI_32] = "32-bit", | |
825 | [PERF_SAMPLE_REGS_ABI_64] = "64-bit", | |
826 | }; | |
827 | ||
828 | static inline const char *regs_dump_abi(struct regs_dump *d) | |
829 | { | |
830 | if (d->abi > PERF_SAMPLE_REGS_ABI_64) | |
831 | return "unknown"; | |
832 | ||
833 | return regs_abi[d->abi]; | |
834 | } | |
835 | ||
836 | static void regs__printf(const char *type, struct regs_dump *regs) | |
837 | { | |
838 | u64 mask = regs->mask; | |
839 | ||
840 | printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n", | |
841 | type, | |
842 | mask, | |
843 | regs_dump_abi(regs)); | |
844 | ||
845 | regs_dump__printf(mask, regs->regs); | |
846 | } | |
847 | ||
352ea45a | 848 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
849 | { |
850 | struct regs_dump *user_regs = &sample->user_regs; | |
851 | ||
6a21c0b5 SE |
852 | if (user_regs->regs) |
853 | regs__printf("user", user_regs); | |
854 | } | |
855 | ||
856 | static void regs_intr__printf(struct perf_sample *sample) | |
857 | { | |
858 | struct regs_dump *intr_regs = &sample->intr_regs; | |
859 | ||
860 | if (intr_regs->regs) | |
861 | regs__printf("intr", intr_regs); | |
0f6a3015 JO |
862 | } |
863 | ||
864 | static void stack_user__printf(struct stack_dump *dump) | |
865 | { | |
866 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
867 | dump->size, dump->offset); | |
868 | } | |
869 | ||
9fa8727a | 870 | static void perf_evlist__print_tstamp(struct perf_evlist *evlist, |
8115d60c | 871 | union perf_event *event, |
8d50e5b4 | 872 | struct perf_sample *sample) |
9c90a61c | 873 | { |
9fa8727a | 874 | u64 sample_type = __perf_evlist__combined_sample_type(evlist); |
7f3be652 | 875 | |
9c90a61c | 876 | if (event->header.type != PERF_RECORD_SAMPLE && |
9fa8727a | 877 | !perf_evlist__sample_id_all(evlist)) { |
9c90a61c ACM |
878 | fputs("-1 -1 ", stdout); |
879 | return; | |
880 | } | |
881 | ||
7f3be652 | 882 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
883 | printf("%u ", sample->cpu); |
884 | ||
7f3be652 | 885 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 886 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
887 | } |
888 | ||
9ede473c JO |
889 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
890 | { | |
891 | printf("... sample_read:\n"); | |
892 | ||
893 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
894 | printf("...... time enabled %016" PRIx64 "\n", | |
895 | sample->read.time_enabled); | |
896 | ||
897 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
898 | printf("...... time running %016" PRIx64 "\n", | |
899 | sample->read.time_running); | |
900 | ||
901 | if (read_format & PERF_FORMAT_GROUP) { | |
902 | u64 i; | |
903 | ||
904 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
905 | ||
906 | for (i = 0; i < sample->read.group.nr; i++) { | |
907 | struct sample_read_value *value; | |
908 | ||
909 | value = &sample->read.group.values[i]; | |
910 | printf("..... id %016" PRIx64 | |
911 | ", value %016" PRIx64 "\n", | |
912 | value->id, value->value); | |
913 | } | |
914 | } else | |
915 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
916 | sample->read.one.id, sample->read.one.value); | |
917 | } | |
918 | ||
9fa8727a | 919 | static void dump_event(struct perf_evlist *evlist, union perf_event *event, |
8d50e5b4 | 920 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
921 | { |
922 | if (!dump_trace) | |
923 | return; | |
924 | ||
9486aa38 ACM |
925 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
926 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
927 | |
928 | trace_event(event); | |
929 | ||
930 | if (sample) | |
9fa8727a | 931 | perf_evlist__print_tstamp(evlist, event, sample); |
9aefcab0 | 932 | |
9486aa38 | 933 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 934 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
935 | } |
936 | ||
0f6a3015 | 937 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 938 | struct perf_sample *sample) |
9aefcab0 | 939 | { |
7f3be652 ACM |
940 | u64 sample_type; |
941 | ||
ddbc24b7 ACM |
942 | if (!dump_trace) |
943 | return; | |
944 | ||
0ea590ae | 945 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 946 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 947 | sample->period, sample->addr); |
9aefcab0 | 948 | |
0f6a3015 | 949 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
950 | |
951 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
384b6055 | 952 | callchain__printf(evsel, sample); |
b5387528 | 953 | |
384b6055 | 954 | if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel)) |
b5387528 | 955 | branch_stack__printf(sample); |
0f6a3015 JO |
956 | |
957 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 958 | regs_user__printf(sample); |
0f6a3015 | 959 | |
6a21c0b5 SE |
960 | if (sample_type & PERF_SAMPLE_REGS_INTR) |
961 | regs_intr__printf(sample); | |
962 | ||
0f6a3015 JO |
963 | if (sample_type & PERF_SAMPLE_STACK_USER) |
964 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
965 | |
966 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
967 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
968 | |
969 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
970 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 971 | |
475eeab9 AK |
972 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
973 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
974 | ||
9ede473c JO |
975 | if (sample_type & PERF_SAMPLE_READ) |
976 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
977 | } |
978 | ||
54245fdc | 979 | static struct machine *machines__find_for_cpumode(struct machines *machines, |
ef89325f AH |
980 | union perf_event *event, |
981 | struct perf_sample *sample) | |
743eb868 ACM |
982 | { |
983 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
ad85ace0 | 984 | struct machine *machine; |
743eb868 | 985 | |
7c0f4a41 DA |
986 | if (perf_guest && |
987 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
988 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
989 | u32 pid; |
990 | ||
5c5e854b SE |
991 | if (event->header.type == PERF_RECORD_MMAP |
992 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
993 | pid = event->mmap.pid; |
994 | else | |
ef89325f | 995 | pid = sample->pid; |
7fb0a5ee | 996 | |
54245fdc | 997 | machine = machines__find(machines, pid); |
ad85ace0 | 998 | if (!machine) |
54245fdc | 999 | machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID); |
ad85ace0 | 1000 | return machine; |
7fb0a5ee | 1001 | } |
743eb868 | 1002 | |
54245fdc | 1003 | return &machines->host; |
743eb868 ACM |
1004 | } |
1005 | ||
313e53b0 | 1006 | static int deliver_sample_value(struct perf_evlist *evlist, |
e4caec0d JO |
1007 | struct perf_tool *tool, |
1008 | union perf_event *event, | |
1009 | struct perf_sample *sample, | |
1010 | struct sample_read_value *v, | |
1011 | struct machine *machine) | |
1012 | { | |
313e53b0 | 1013 | struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id); |
e4caec0d | 1014 | |
e4caec0d JO |
1015 | if (sid) { |
1016 | sample->id = v->id; | |
1017 | sample->period = v->value - sid->period; | |
1018 | sid->period = v->value; | |
1019 | } | |
1020 | ||
1021 | if (!sid || sid->evsel == NULL) { | |
313e53b0 | 1022 | ++evlist->stats.nr_unknown_id; |
e4caec0d JO |
1023 | return 0; |
1024 | } | |
1025 | ||
1026 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
1027 | } | |
1028 | ||
313e53b0 | 1029 | static int deliver_sample_group(struct perf_evlist *evlist, |
e4caec0d JO |
1030 | struct perf_tool *tool, |
1031 | union perf_event *event, | |
1032 | struct perf_sample *sample, | |
1033 | struct machine *machine) | |
1034 | { | |
1035 | int ret = -EINVAL; | |
1036 | u64 i; | |
1037 | ||
1038 | for (i = 0; i < sample->read.group.nr; i++) { | |
313e53b0 | 1039 | ret = deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
1040 | &sample->read.group.values[i], |
1041 | machine); | |
1042 | if (ret) | |
1043 | break; | |
1044 | } | |
1045 | ||
1046 | return ret; | |
1047 | } | |
1048 | ||
1049 | static int | |
313e53b0 | 1050 | perf_evlist__deliver_sample(struct perf_evlist *evlist, |
e4caec0d JO |
1051 | struct perf_tool *tool, |
1052 | union perf_event *event, | |
1053 | struct perf_sample *sample, | |
1054 | struct perf_evsel *evsel, | |
1055 | struct machine *machine) | |
1056 | { | |
1057 | /* We know evsel != NULL. */ | |
1058 | u64 sample_type = evsel->attr.sample_type; | |
1059 | u64 read_format = evsel->attr.read_format; | |
1060 | ||
1061 | /* Standard sample delievery. */ | |
1062 | if (!(sample_type & PERF_SAMPLE_READ)) | |
1063 | return tool->sample(tool, event, sample, evsel, machine); | |
1064 | ||
1065 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
1066 | if (read_format & PERF_FORMAT_GROUP) | |
313e53b0 | 1067 | return deliver_sample_group(evlist, tool, event, sample, |
e4caec0d JO |
1068 | machine); |
1069 | else | |
313e53b0 | 1070 | return deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
1071 | &sample->read.one, machine); |
1072 | } | |
1073 | ||
d10eb1eb ACM |
1074 | static int machines__deliver_event(struct machines *machines, |
1075 | struct perf_evlist *evlist, | |
1076 | union perf_event *event, | |
1077 | struct perf_sample *sample, | |
1078 | struct perf_tool *tool, u64 file_offset) | |
cbf41645 | 1079 | { |
9e69c210 | 1080 | struct perf_evsel *evsel; |
743eb868 | 1081 | struct machine *machine; |
9e69c210 | 1082 | |
9fa8727a | 1083 | dump_event(evlist, event, file_offset, sample); |
532e7269 | 1084 | |
313e53b0 | 1085 | evsel = perf_evlist__id2evsel(evlist, sample->id); |
7b27509f | 1086 | |
fa713a4e | 1087 | machine = machines__find_for_cpumode(machines, event, sample); |
743eb868 | 1088 | |
cbf41645 TG |
1089 | switch (event->header.type) { |
1090 | case PERF_RECORD_SAMPLE: | |
9e69c210 | 1091 | if (evsel == NULL) { |
313e53b0 | 1092 | ++evlist->stats.nr_unknown_id; |
6782206b | 1093 | return 0; |
9e69c210 | 1094 | } |
1b29ac59 | 1095 | dump_sample(evsel, event, sample); |
0c095715 | 1096 | if (machine == NULL) { |
313e53b0 | 1097 | ++evlist->stats.nr_unprocessable_samples; |
6782206b | 1098 | return 0; |
0c095715 | 1099 | } |
313e53b0 | 1100 | return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine); |
cbf41645 | 1101 | case PERF_RECORD_MMAP: |
45694aa7 | 1102 | return tool->mmap(tool, event, sample, machine); |
5c5e854b | 1103 | case PERF_RECORD_MMAP2: |
930e6fcd KL |
1104 | if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT) |
1105 | ++evlist->stats.nr_proc_map_timeout; | |
5c5e854b | 1106 | return tool->mmap2(tool, event, sample, machine); |
cbf41645 | 1107 | case PERF_RECORD_COMM: |
45694aa7 | 1108 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1109 | case PERF_RECORD_FORK: |
45694aa7 | 1110 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1111 | case PERF_RECORD_EXIT: |
45694aa7 | 1112 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1113 | case PERF_RECORD_LOST: |
45694aa7 | 1114 | if (tool->lost == perf_event__process_lost) |
313e53b0 | 1115 | evlist->stats.total_lost += event->lost.lost; |
45694aa7 | 1116 | return tool->lost(tool, event, sample, machine); |
c4937a91 KL |
1117 | case PERF_RECORD_LOST_SAMPLES: |
1118 | if (tool->lost_samples == perf_event__process_lost_samples) | |
1119 | evlist->stats.total_lost_samples += event->lost_samples.lost; | |
1120 | return tool->lost_samples(tool, event, sample, machine); | |
cbf41645 | 1121 | case PERF_RECORD_READ: |
45694aa7 | 1122 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1123 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1124 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1125 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1126 | return tool->unthrottle(tool, event, sample, machine); |
4a96f7a0 | 1127 | case PERF_RECORD_AUX: |
a38f48e3 AH |
1128 | if (tool->aux == perf_event__process_aux && |
1129 | (event->aux.flags & PERF_AUX_FLAG_TRUNCATED)) | |
1130 | evlist->stats.total_aux_lost += 1; | |
4a96f7a0 | 1131 | return tool->aux(tool, event, sample, machine); |
0ad21f68 AH |
1132 | case PERF_RECORD_ITRACE_START: |
1133 | return tool->itrace_start(tool, event, sample, machine); | |
0286039f AH |
1134 | case PERF_RECORD_SWITCH: |
1135 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1136 | return tool->context_switch(tool, event, sample, machine); | |
cbf41645 | 1137 | default: |
313e53b0 | 1138 | ++evlist->stats.nr_unknown_events; |
cbf41645 TG |
1139 | return -1; |
1140 | } | |
1141 | } | |
1142 | ||
c446870d AH |
1143 | static int perf_session__deliver_event(struct perf_session *session, |
1144 | union perf_event *event, | |
1145 | struct perf_sample *sample, | |
1146 | struct perf_tool *tool, | |
1147 | u64 file_offset) | |
1148 | { | |
1149 | int ret; | |
1150 | ||
1151 | ret = auxtrace__process_event(session, event, sample, tool); | |
1152 | if (ret < 0) | |
1153 | return ret; | |
1154 | if (ret > 0) | |
1155 | return 0; | |
1156 | ||
1157 | return machines__deliver_event(&session->machines, session->evlist, | |
1158 | event, sample, tool, file_offset); | |
1159 | } | |
1160 | ||
d5652d86 AH |
1161 | static s64 perf_session__process_user_event(struct perf_session *session, |
1162 | union perf_event *event, | |
d5652d86 | 1163 | u64 file_offset) |
06aae590 | 1164 | { |
d704ebda | 1165 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1166 | struct perf_tool *tool = session->tool; |
cc9784bd | 1167 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
1168 | int err; |
1169 | ||
9fa8727a | 1170 | dump_event(session->evlist, event, file_offset, NULL); |
06aae590 | 1171 | |
cbf41645 | 1172 | /* These events are processed right away */ |
06aae590 | 1173 | switch (event->header.type) { |
2c46dbb5 | 1174 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1175 | err = tool->attr(tool, event, &session->evlist); |
cfe1c414 | 1176 | if (err == 0) { |
7b56cce2 | 1177 | perf_session__set_id_hdr_size(session); |
cfe1c414 AH |
1178 | perf_session__set_comm_exec(session); |
1179 | } | |
10d0f086 | 1180 | return err; |
f67697bd JO |
1181 | case PERF_RECORD_HEADER_EVENT_TYPE: |
1182 | /* | |
1183 | * Depreceated, but we need to handle it for sake | |
1184 | * of old data files create in pipe mode. | |
1185 | */ | |
1186 | return 0; | |
9215545e TZ |
1187 | case PERF_RECORD_HEADER_TRACING_DATA: |
1188 | /* setup for reading amidst mmap */ | |
cc9784bd | 1189 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 1190 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1191 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1192 | return tool->build_id(tool, event, session); |
d6b17beb | 1193 | case PERF_RECORD_FINISHED_ROUND: |
d704ebda | 1194 | return tool->finished_round(tool, event, oe); |
3c659eed AH |
1195 | case PERF_RECORD_ID_INDEX: |
1196 | return tool->id_index(tool, event, session); | |
a16ac023 AH |
1197 | case PERF_RECORD_AUXTRACE_INFO: |
1198 | return tool->auxtrace_info(tool, event, session); | |
1199 | case PERF_RECORD_AUXTRACE: | |
1200 | /* setup for reading amidst mmap */ | |
1201 | lseek(fd, file_offset + event->header.size, SEEK_SET); | |
1202 | return tool->auxtrace(tool, event, session); | |
e9bf54d2 | 1203 | case PERF_RECORD_AUXTRACE_ERROR: |
85ed4729 | 1204 | perf_session__auxtrace_error_inc(session, event); |
e9bf54d2 | 1205 | return tool->auxtrace_error(tool, event, session); |
5f3339d2 JO |
1206 | case PERF_RECORD_THREAD_MAP: |
1207 | return tool->thread_map(tool, event, session); | |
06aae590 | 1208 | default: |
ba74f064 | 1209 | return -EINVAL; |
06aae590 | 1210 | } |
ba74f064 TG |
1211 | } |
1212 | ||
a293829d AH |
1213 | int perf_session__deliver_synth_event(struct perf_session *session, |
1214 | union perf_event *event, | |
b7b61cbe | 1215 | struct perf_sample *sample) |
a293829d | 1216 | { |
fa713a4e | 1217 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1218 | struct perf_tool *tool = session->tool; |
fa713a4e ACM |
1219 | |
1220 | events_stats__inc(&evlist->stats, event->header.type); | |
a293829d AH |
1221 | |
1222 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1223 | return perf_session__process_user_event(session, event, 0); |
a293829d | 1224 | |
fa713a4e | 1225 | return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0); |
a293829d AH |
1226 | } |
1227 | ||
268fb20f JO |
1228 | static void event_swap(union perf_event *event, bool sample_id_all) |
1229 | { | |
1230 | perf_event__swap_op swap; | |
1231 | ||
1232 | swap = perf_event__swap_ops[event->header.type]; | |
1233 | if (swap) | |
1234 | swap(event, sample_id_all); | |
1235 | } | |
1236 | ||
5a52f33a AH |
1237 | int perf_session__peek_event(struct perf_session *session, off_t file_offset, |
1238 | void *buf, size_t buf_sz, | |
1239 | union perf_event **event_ptr, | |
1240 | struct perf_sample *sample) | |
1241 | { | |
1242 | union perf_event *event; | |
1243 | size_t hdr_sz, rest; | |
1244 | int fd; | |
1245 | ||
1246 | if (session->one_mmap && !session->header.needs_swap) { | |
1247 | event = file_offset - session->one_mmap_offset + | |
1248 | session->one_mmap_addr; | |
1249 | goto out_parse_sample; | |
1250 | } | |
1251 | ||
1252 | if (perf_data_file__is_pipe(session->file)) | |
1253 | return -1; | |
1254 | ||
1255 | fd = perf_data_file__fd(session->file); | |
1256 | hdr_sz = sizeof(struct perf_event_header); | |
1257 | ||
1258 | if (buf_sz < hdr_sz) | |
1259 | return -1; | |
1260 | ||
1261 | if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 || | |
554e92ed | 1262 | readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz) |
5a52f33a AH |
1263 | return -1; |
1264 | ||
1265 | event = (union perf_event *)buf; | |
1266 | ||
1267 | if (session->header.needs_swap) | |
1268 | perf_event_header__bswap(&event->header); | |
1269 | ||
554e92ed | 1270 | if (event->header.size < hdr_sz || event->header.size > buf_sz) |
5a52f33a AH |
1271 | return -1; |
1272 | ||
1273 | rest = event->header.size - hdr_sz; | |
1274 | ||
554e92ed | 1275 | if (readn(fd, buf, rest) != (ssize_t)rest) |
5a52f33a AH |
1276 | return -1; |
1277 | ||
1278 | if (session->header.needs_swap) | |
1279 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); | |
1280 | ||
1281 | out_parse_sample: | |
1282 | ||
1283 | if (sample && event->header.type < PERF_RECORD_USER_TYPE_START && | |
1284 | perf_evlist__parse_sample(session->evlist, event, sample)) | |
1285 | return -1; | |
1286 | ||
1287 | *event_ptr = event; | |
1288 | ||
1289 | return 0; | |
1290 | } | |
1291 | ||
d5652d86 | 1292 | static s64 perf_session__process_event(struct perf_session *session, |
b7b61cbe | 1293 | union perf_event *event, u64 file_offset) |
ba74f064 | 1294 | { |
313e53b0 | 1295 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1296 | struct perf_tool *tool = session->tool; |
8d50e5b4 | 1297 | struct perf_sample sample; |
ba74f064 TG |
1298 | int ret; |
1299 | ||
268fb20f | 1300 | if (session->header.needs_swap) |
313e53b0 | 1301 | event_swap(event, perf_evlist__sample_id_all(evlist)); |
ba74f064 TG |
1302 | |
1303 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1304 | return -EINVAL; | |
1305 | ||
313e53b0 | 1306 | events_stats__inc(&evlist->stats, event->header.type); |
ba74f064 TG |
1307 | |
1308 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1309 | return perf_session__process_user_event(session, event, file_offset); |
cbf41645 | 1310 | |
3dfc2c0a TG |
1311 | /* |
1312 | * For all kernel events we get the sample data | |
1313 | */ | |
313e53b0 | 1314 | ret = perf_evlist__parse_sample(evlist, event, &sample); |
5538beca FW |
1315 | if (ret) |
1316 | return ret; | |
3dfc2c0a | 1317 | |
0a8cb85c | 1318 | if (tool->ordered_events) { |
b7b61cbe | 1319 | ret = perf_session__queue_event(session, event, &sample, file_offset); |
cbf41645 TG |
1320 | if (ret != -ETIME) |
1321 | return ret; | |
1322 | } | |
1323 | ||
c446870d AH |
1324 | return perf_session__deliver_event(session, event, &sample, tool, |
1325 | file_offset); | |
06aae590 ACM |
1326 | } |
1327 | ||
316c7136 | 1328 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1329 | { |
316c7136 ACM |
1330 | hdr->type = bswap_32(hdr->type); |
1331 | hdr->misc = bswap_16(hdr->misc); | |
1332 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1333 | } |
1334 | ||
b424eba2 ACM |
1335 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1336 | { | |
1fcb8768 | 1337 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1338 | } |
1339 | ||
9d8b172f | 1340 | int perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1341 | { |
1fcb8768 | 1342 | struct thread *thread; |
9d8b172f | 1343 | int err = 0; |
06aae590 | 1344 | |
1fcb8768 | 1345 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1346 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 | 1347 | pr_err("problem inserting idle task.\n"); |
9d8b172f | 1348 | err = -1; |
06aae590 ACM |
1349 | } |
1350 | ||
9d8b172f MH |
1351 | /* machine__findnew_thread() got the thread, so put it */ |
1352 | thread__put(thread); | |
1353 | return err; | |
06aae590 ACM |
1354 | } |
1355 | ||
9870d780 | 1356 | static void perf_session__warn_about_errors(const struct perf_session *session) |
11095994 | 1357 | { |
9870d780 ACM |
1358 | const struct events_stats *stats = &session->evlist->stats; |
1359 | const struct ordered_events *oe = &session->ordered_events; | |
1360 | ||
1361 | if (session->tool->lost == perf_event__process_lost && | |
ccda068f | 1362 | stats->nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1363 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1364 | "Check IO/CPU overload!\n\n", | |
ccda068f ACM |
1365 | stats->nr_events[0], |
1366 | stats->nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1367 | } |
1368 | ||
c4937a91 KL |
1369 | if (session->tool->lost_samples == perf_event__process_lost_samples) { |
1370 | double drop_rate; | |
1371 | ||
1372 | drop_rate = (double)stats->total_lost_samples / | |
1373 | (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples); | |
1374 | if (drop_rate > 0.05) { | |
6ba29c2f | 1375 | ui__warning("Processed %" PRIu64 " samples and lost %3.2f%% samples!\n\n", |
c4937a91 KL |
1376 | stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples, |
1377 | drop_rate * 100.0); | |
1378 | } | |
1379 | } | |
1380 | ||
a38f48e3 AH |
1381 | if (session->tool->aux == perf_event__process_aux && |
1382 | stats->total_aux_lost != 0) { | |
1383 | ui__warning("AUX data lost %" PRIu64 " times out of %u!\n\n", | |
1384 | stats->total_aux_lost, | |
1385 | stats->nr_events[PERF_RECORD_AUX]); | |
1386 | } | |
1387 | ||
ccda068f | 1388 | if (stats->nr_unknown_events != 0) { |
11095994 ACM |
1389 | ui__warning("Found %u unknown events!\n\n" |
1390 | "Is this an older tool processing a perf.data " | |
1391 | "file generated by a more recent tool?\n\n" | |
1392 | "If that is not the case, consider " | |
1393 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f | 1394 | stats->nr_unknown_events); |
11095994 ACM |
1395 | } |
1396 | ||
ccda068f | 1397 | if (stats->nr_unknown_id != 0) { |
9e69c210 | 1398 | ui__warning("%u samples with id not present in the header\n", |
ccda068f | 1399 | stats->nr_unknown_id); |
9e69c210 ACM |
1400 | } |
1401 | ||
ccda068f | 1402 | if (stats->nr_invalid_chains != 0) { |
75be989a ACM |
1403 | ui__warning("Found invalid callchains!\n\n" |
1404 | "%u out of %u events were discarded for this reason.\n\n" | |
1405 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f ACM |
1406 | stats->nr_invalid_chains, |
1407 | stats->nr_events[PERF_RECORD_SAMPLE]); | |
75be989a | 1408 | } |
0c095715 | 1409 | |
ccda068f | 1410 | if (stats->nr_unprocessable_samples != 0) { |
0c095715 JR |
1411 | ui__warning("%u unprocessable samples recorded.\n" |
1412 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
ccda068f | 1413 | stats->nr_unprocessable_samples); |
0c095715 | 1414 | } |
f61ff6c0 | 1415 | |
9870d780 ACM |
1416 | if (oe->nr_unordered_events != 0) |
1417 | ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events); | |
85ed4729 AH |
1418 | |
1419 | events_stats__auxtrace_error_warn(stats); | |
930e6fcd KL |
1420 | |
1421 | if (stats->nr_proc_map_timeout != 0) { | |
1422 | ui__warning("%d map information files for pre-existing threads were\n" | |
1423 | "not processed, if there are samples for addresses they\n" | |
1424 | "will not be resolved, you may find out which are these\n" | |
1425 | "threads by running with -v and redirecting the output\n" | |
9d9cad76 KL |
1426 | "to a file.\n" |
1427 | "The time limit to process proc map is too short?\n" | |
1428 | "Increase it by --proc-map-timeout\n", | |
930e6fcd KL |
1429 | stats->nr_proc_map_timeout); |
1430 | } | |
11095994 ACM |
1431 | } |
1432 | ||
a5499b37 AH |
1433 | static int perf_session__flush_thread_stack(struct thread *thread, |
1434 | void *p __maybe_unused) | |
1435 | { | |
1436 | return thread_stack__flush(thread); | |
1437 | } | |
1438 | ||
1439 | static int perf_session__flush_thread_stacks(struct perf_session *session) | |
1440 | { | |
1441 | return machines__for_each_thread(&session->machines, | |
1442 | perf_session__flush_thread_stack, | |
1443 | NULL); | |
1444 | } | |
1445 | ||
8dc58101 TZ |
1446 | volatile int session_done; |
1447 | ||
b7b61cbe | 1448 | static int __perf_session__process_pipe_events(struct perf_session *session) |
8dc58101 | 1449 | { |
fa713a4e | 1450 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1451 | struct perf_tool *tool = session->tool; |
316c7136 | 1452 | int fd = perf_data_file__fd(session->file); |
444d2866 SE |
1453 | union perf_event *event; |
1454 | uint32_t size, cur_size = 0; | |
1455 | void *buf = NULL; | |
d5652d86 | 1456 | s64 skip = 0; |
8dc58101 | 1457 | u64 head; |
727ebd54 | 1458 | ssize_t err; |
8dc58101 TZ |
1459 | void *p; |
1460 | ||
45694aa7 | 1461 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1462 | |
1463 | head = 0; | |
444d2866 SE |
1464 | cur_size = sizeof(union perf_event); |
1465 | ||
1466 | buf = malloc(cur_size); | |
1467 | if (!buf) | |
1468 | return -errno; | |
8dc58101 | 1469 | more: |
444d2866 | 1470 | event = buf; |
cc9784bd | 1471 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1472 | if (err <= 0) { |
1473 | if (err == 0) | |
1474 | goto done; | |
1475 | ||
1476 | pr_err("failed to read event header\n"); | |
1477 | goto out_err; | |
1478 | } | |
1479 | ||
316c7136 | 1480 | if (session->header.needs_swap) |
444d2866 | 1481 | perf_event_header__bswap(&event->header); |
8dc58101 | 1482 | |
444d2866 | 1483 | size = event->header.size; |
27389d78 AH |
1484 | if (size < sizeof(struct perf_event_header)) { |
1485 | pr_err("bad event header size\n"); | |
1486 | goto out_err; | |
1487 | } | |
8dc58101 | 1488 | |
444d2866 SE |
1489 | if (size > cur_size) { |
1490 | void *new = realloc(buf, size); | |
1491 | if (!new) { | |
1492 | pr_err("failed to allocate memory to read event\n"); | |
1493 | goto out_err; | |
1494 | } | |
1495 | buf = new; | |
1496 | cur_size = size; | |
1497 | event = buf; | |
1498 | } | |
1499 | p = event; | |
8dc58101 TZ |
1500 | p += sizeof(struct perf_event_header); |
1501 | ||
794e43b5 | 1502 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1503 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1504 | if (err <= 0) { |
1505 | if (err == 0) { | |
1506 | pr_err("unexpected end of event stream\n"); | |
1507 | goto done; | |
1508 | } | |
8dc58101 | 1509 | |
794e43b5 TZ |
1510 | pr_err("failed to read event data\n"); |
1511 | goto out_err; | |
1512 | } | |
8dc58101 TZ |
1513 | } |
1514 | ||
b7b61cbe | 1515 | if ((skip = perf_session__process_event(session, event, head)) < 0) { |
9389a460 | 1516 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1517 | head, event->header.size, event->header.type); |
9389a460 JO |
1518 | err = -EINVAL; |
1519 | goto out_err; | |
8dc58101 TZ |
1520 | } |
1521 | ||
1522 | head += size; | |
1523 | ||
8dc58101 TZ |
1524 | if (skip > 0) |
1525 | head += skip; | |
1526 | ||
1527 | if (!session_done()) | |
1528 | goto more; | |
1529 | done: | |
8c16b649 | 1530 | /* do the final flush for ordered samples */ |
b7b61cbe | 1531 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
1532 | if (err) |
1533 | goto out_err; | |
1534 | err = auxtrace__flush_events(session, tool); | |
a5499b37 AH |
1535 | if (err) |
1536 | goto out_err; | |
1537 | err = perf_session__flush_thread_stacks(session); | |
8dc58101 | 1538 | out_err: |
444d2866 | 1539 | free(buf); |
9870d780 | 1540 | perf_session__warn_about_errors(session); |
adc56ed1 | 1541 | ordered_events__free(&session->ordered_events); |
c446870d | 1542 | auxtrace__free_events(session); |
8dc58101 TZ |
1543 | return err; |
1544 | } | |
1545 | ||
998bedc8 FW |
1546 | static union perf_event * |
1547 | fetch_mmaped_event(struct perf_session *session, | |
1548 | u64 head, size_t mmap_size, char *buf) | |
1549 | { | |
1550 | union perf_event *event; | |
1551 | ||
1552 | /* | |
1553 | * Ensure we have enough space remaining to read | |
1554 | * the size of the event in the headers. | |
1555 | */ | |
1556 | if (head + sizeof(event->header) > mmap_size) | |
1557 | return NULL; | |
1558 | ||
1559 | event = (union perf_event *)(buf + head); | |
1560 | ||
1561 | if (session->header.needs_swap) | |
1562 | perf_event_header__bswap(&event->header); | |
1563 | ||
27389d78 AH |
1564 | if (head + event->header.size > mmap_size) { |
1565 | /* We're not fetching the event so swap back again */ | |
1566 | if (session->header.needs_swap) | |
1567 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1568 | return NULL; |
27389d78 | 1569 | } |
998bedc8 FW |
1570 | |
1571 | return event; | |
1572 | } | |
1573 | ||
35d48ddf DM |
1574 | /* |
1575 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1576 | * slices. On 32bit we use 32MB. | |
1577 | */ | |
1578 | #if BITS_PER_LONG == 64 | |
1579 | #define MMAP_SIZE ULLONG_MAX | |
1580 | #define NUM_MMAPS 1 | |
1581 | #else | |
1582 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1583 | #define NUM_MMAPS 128 | |
1584 | #endif | |
1585 | ||
4ac30cf7 NK |
1586 | static int __perf_session__process_events(struct perf_session *session, |
1587 | u64 data_offset, u64 data_size, | |
b7b61cbe | 1588 | u64 file_size) |
06aae590 | 1589 | { |
fa713a4e | 1590 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1591 | struct perf_tool *tool = session->tool; |
cc9784bd | 1592 | int fd = perf_data_file__fd(session->file); |
d5652d86 | 1593 | u64 head, page_offset, file_offset, file_pos, size; |
fe174207 | 1594 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1595 | size_t mmap_size; |
35d48ddf | 1596 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1597 | union perf_event *event; |
4d3001fd | 1598 | struct ui_progress prog; |
d5652d86 | 1599 | s64 skip; |
0331ee0c | 1600 | |
45694aa7 | 1601 | perf_tool__fill_defaults(tool); |
06aae590 | 1602 | |
0331ee0c TG |
1603 | page_offset = page_size * (data_offset / page_size); |
1604 | file_offset = page_offset; | |
1605 | head = data_offset - page_offset; | |
06aae590 | 1606 | |
381c02f6 MR |
1607 | if (data_size == 0) |
1608 | goto out; | |
1609 | ||
1610 | if (data_offset + data_size < file_size) | |
d6513281 TG |
1611 | file_size = data_offset + data_size; |
1612 | ||
4d3001fd | 1613 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1614 | |
35d48ddf | 1615 | mmap_size = MMAP_SIZE; |
919d86d3 | 1616 | if (mmap_size > file_size) { |
55b44629 | 1617 | mmap_size = file_size; |
919d86d3 AH |
1618 | session->one_mmap = true; |
1619 | } | |
55b44629 | 1620 | |
fe174207 TG |
1621 | memset(mmaps, 0, sizeof(mmaps)); |
1622 | ||
ba21594c ACM |
1623 | mmap_prot = PROT_READ; |
1624 | mmap_flags = MAP_SHARED; | |
1625 | ||
0331ee0c | 1626 | if (session->header.needs_swap) { |
ba21594c ACM |
1627 | mmap_prot |= PROT_WRITE; |
1628 | mmap_flags = MAP_PRIVATE; | |
1629 | } | |
06aae590 | 1630 | remap: |
cc9784bd | 1631 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1632 | file_offset); |
06aae590 ACM |
1633 | if (buf == MAP_FAILED) { |
1634 | pr_err("failed to mmap file\n"); | |
1635 | err = -errno; | |
1636 | goto out_err; | |
1637 | } | |
fe174207 TG |
1638 | mmaps[map_idx] = buf; |
1639 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1640 | file_pos = file_offset + head; |
919d86d3 AH |
1641 | if (session->one_mmap) { |
1642 | session->one_mmap_addr = buf; | |
1643 | session->one_mmap_offset = file_offset; | |
1644 | } | |
06aae590 ACM |
1645 | |
1646 | more: | |
998bedc8 FW |
1647 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1648 | if (!event) { | |
fe174207 TG |
1649 | if (mmaps[map_idx]) { |
1650 | munmap(mmaps[map_idx], mmap_size); | |
1651 | mmaps[map_idx] = NULL; | |
1652 | } | |
06aae590 | 1653 | |
0331ee0c TG |
1654 | page_offset = page_size * (head / page_size); |
1655 | file_offset += page_offset; | |
1656 | head -= page_offset; | |
06aae590 ACM |
1657 | goto remap; |
1658 | } | |
1659 | ||
1660 | size = event->header.size; | |
1661 | ||
27389d78 | 1662 | if (size < sizeof(struct perf_event_header) || |
b7b61cbe | 1663 | (skip = perf_session__process_event(session, event, file_pos)) < 0) { |
9389a460 JO |
1664 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1665 | file_offset + head, event->header.size, | |
1666 | event->header.type); | |
1667 | err = -EINVAL; | |
1668 | goto out_err; | |
06aae590 ACM |
1669 | } |
1670 | ||
6f917c70 AH |
1671 | if (skip) |
1672 | size += skip; | |
1673 | ||
06aae590 | 1674 | head += size; |
d6513281 | 1675 | file_pos += size; |
06aae590 | 1676 | |
4d3001fd | 1677 | ui_progress__update(&prog, size); |
55b44629 | 1678 | |
33e940a2 | 1679 | if (session_done()) |
8c16b649 | 1680 | goto out; |
33e940a2 | 1681 | |
d6513281 | 1682 | if (file_pos < file_size) |
06aae590 | 1683 | goto more; |
d6513281 | 1684 | |
8c16b649 | 1685 | out: |
c61e52ee | 1686 | /* do the final flush for ordered samples */ |
b7b61cbe | 1687 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
1688 | if (err) |
1689 | goto out_err; | |
1690 | err = auxtrace__flush_events(session, tool); | |
a5499b37 AH |
1691 | if (err) |
1692 | goto out_err; | |
1693 | err = perf_session__flush_thread_stacks(session); | |
06aae590 | 1694 | out_err: |
a5580f3e | 1695 | ui_progress__finish(); |
9870d780 | 1696 | perf_session__warn_about_errors(session); |
adc56ed1 | 1697 | ordered_events__free(&session->ordered_events); |
c446870d | 1698 | auxtrace__free_events(session); |
919d86d3 | 1699 | session->one_mmap = false; |
06aae590 ACM |
1700 | return err; |
1701 | } | |
27295592 | 1702 | |
b7b61cbe | 1703 | int perf_session__process_events(struct perf_session *session) |
6122e4e4 | 1704 | { |
316c7136 | 1705 | u64 size = perf_data_file__size(session->file); |
6122e4e4 ACM |
1706 | int err; |
1707 | ||
9d8b172f | 1708 | if (perf_session__register_idle_thread(session) < 0) |
6122e4e4 ACM |
1709 | return -ENOMEM; |
1710 | ||
316c7136 ACM |
1711 | if (!perf_data_file__is_pipe(session->file)) |
1712 | err = __perf_session__process_events(session, | |
1713 | session->header.data_offset, | |
b7b61cbe | 1714 | session->header.data_size, size); |
8dc58101 | 1715 | else |
b7b61cbe | 1716 | err = __perf_session__process_pipe_events(session); |
88ca895d | 1717 | |
6122e4e4 ACM |
1718 | return err; |
1719 | } | |
1720 | ||
7f3be652 | 1721 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1722 | { |
93ea01c2 DA |
1723 | struct perf_evsel *evsel; |
1724 | ||
0050f7aa | 1725 | evlist__for_each(session->evlist, evsel) { |
93ea01c2 DA |
1726 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) |
1727 | return true; | |
27295592 ACM |
1728 | } |
1729 | ||
93ea01c2 DA |
1730 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1731 | return false; | |
27295592 | 1732 | } |
56b03f3c | 1733 | |
743eb868 ACM |
1734 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1735 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1736 | { |
1737 | char *bracket; | |
9de89fe7 | 1738 | enum map_type i; |
a1645ce1 ZY |
1739 | struct ref_reloc_sym *ref; |
1740 | ||
1741 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1742 | if (ref == NULL) | |
1743 | return -ENOMEM; | |
56b03f3c | 1744 | |
a1645ce1 ZY |
1745 | ref->name = strdup(symbol_name); |
1746 | if (ref->name == NULL) { | |
1747 | free(ref); | |
56b03f3c | 1748 | return -ENOMEM; |
a1645ce1 | 1749 | } |
56b03f3c | 1750 | |
a1645ce1 | 1751 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1752 | if (bracket) |
1753 | *bracket = '\0'; | |
1754 | ||
a1645ce1 | 1755 | ref->addr = addr; |
9de89fe7 ACM |
1756 | |
1757 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 | 1758 | struct kmap *kmap = map__kmap(maps[i]); |
ba92732e WN |
1759 | |
1760 | if (!kmap) | |
1761 | continue; | |
a1645ce1 | 1762 | kmap->ref_reloc_sym = ref; |
9de89fe7 ACM |
1763 | } |
1764 | ||
56b03f3c ACM |
1765 | return 0; |
1766 | } | |
1f626bc3 | 1767 | |
316c7136 | 1768 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 1769 | { |
316c7136 | 1770 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 1771 | } |
f869097e | 1772 | |
316c7136 | 1773 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 1774 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1775 | { |
316c7136 | 1776 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 1777 | } |
e248de33 ACM |
1778 | |
1779 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1780 | { | |
c446870d AH |
1781 | size_t ret; |
1782 | const char *msg = ""; | |
1783 | ||
1784 | if (perf_header__has_feat(&session->header, HEADER_AUXTRACE)) | |
1785 | msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)"; | |
1786 | ||
fe692ac8 | 1787 | ret = fprintf(fp, "\nAggregated stats:%s\n", msg); |
e248de33 | 1788 | |
75be989a | 1789 | ret += events_stats__fprintf(&session->evlist->stats, fp); |
e248de33 ACM |
1790 | return ret; |
1791 | } | |
c0230b2b | 1792 | |
b424eba2 ACM |
1793 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1794 | { | |
1795 | /* | |
1796 | * FIXME: Here we have to actually print all the machines in this | |
1797 | * session, not just the host... | |
1798 | */ | |
876650e6 | 1799 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1800 | } |
1801 | ||
9cbdb702 DA |
1802 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1803 | unsigned int type) | |
1804 | { | |
1805 | struct perf_evsel *pos; | |
1806 | ||
0050f7aa | 1807 | evlist__for_each(session->evlist, pos) { |
9cbdb702 DA |
1808 | if (pos->attr.type == type) |
1809 | return pos; | |
1810 | } | |
1811 | return NULL; | |
1812 | } | |
1813 | ||
a2cb3cf2 | 1814 | void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, |
cc22e575 | 1815 | struct addr_location *al, |
307cbb92 | 1816 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b | 1817 | { |
c0230b2b | 1818 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1819 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1820 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1821 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1822 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 | 1823 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
cc8fae1d | 1824 | int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; |
b0b35f01 | 1825 | char s = print_oneline ? ' ' : '\t'; |
c0230b2b | 1826 | |
c0230b2b | 1827 | if (symbol_conf.use_callchain && sample->callchain) { |
a2cb3cf2 | 1828 | struct addr_location node_al; |
c0230b2b | 1829 | |
cc8b7c2b ACM |
1830 | if (thread__resolve_callchain(al->thread, evsel, |
1831 | sample, NULL, NULL, | |
03cd1fed | 1832 | stack_depth) != 0) { |
c0230b2b DA |
1833 | if (verbose) |
1834 | error("Failed to resolve callchain. Skipping\n"); | |
1835 | return; | |
1836 | } | |
47260645 | 1837 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1838 | |
a2cb3cf2 AH |
1839 | if (print_symoffset) |
1840 | node_al = *al; | |
1841 | ||
307cbb92 | 1842 | while (stack_depth) { |
a4eb24a4 AH |
1843 | u64 addr = 0; |
1844 | ||
47260645 | 1845 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1846 | if (!node) |
1847 | break; | |
1848 | ||
d2ff1b14 DA |
1849 | if (node->sym && node->sym->ignore) |
1850 | goto next; | |
1851 | ||
a6ffaf91 | 1852 | if (print_ip) |
b0b35f01 | 1853 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1854 | |
a4eb24a4 AH |
1855 | if (node->map) |
1856 | addr = node->map->map_ip(node->map, node->ip); | |
1857 | ||
787bef17 | 1858 | if (print_sym) { |
547a92e0 | 1859 | printf(" "); |
251f426f | 1860 | if (print_symoffset) { |
a4eb24a4 | 1861 | node_al.addr = addr; |
a2cb3cf2 AH |
1862 | node_al.map = node->map; |
1863 | symbol__fprintf_symname_offs(node->sym, &node_al, stdout); | |
251f426f DA |
1864 | } else |
1865 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1866 | } |
251f426f | 1867 | |
610723f2 | 1868 | if (print_dso) { |
547a92e0 | 1869 | printf(" ("); |
52deff71 | 1870 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1871 | printf(")"); |
787bef17 | 1872 | } |
b0b35f01 | 1873 | |
cc8fae1d AH |
1874 | if (print_srcline) |
1875 | map__fprintf_srcline(node->map, addr, "\n ", | |
1876 | stdout); | |
1877 | ||
b0b35f01 DA |
1878 | if (!print_oneline) |
1879 | printf("\n"); | |
c0230b2b | 1880 | |
307cbb92 | 1881 | stack_depth--; |
d2ff1b14 DA |
1882 | next: |
1883 | callchain_cursor_advance(&callchain_cursor); | |
c0230b2b DA |
1884 | } |
1885 | ||
1886 | } else { | |
a2cb3cf2 | 1887 | if (al->sym && al->sym->ignore) |
d2ff1b14 DA |
1888 | return; |
1889 | ||
a6ffaf91 DA |
1890 | if (print_ip) |
1891 | printf("%16" PRIx64, sample->ip); | |
1892 | ||
787bef17 | 1893 | if (print_sym) { |
547a92e0 | 1894 | printf(" "); |
a978f2ab | 1895 | if (print_symoffset) |
a2cb3cf2 | 1896 | symbol__fprintf_symname_offs(al->sym, al, |
a978f2ab AN |
1897 | stdout); |
1898 | else | |
a2cb3cf2 | 1899 | symbol__fprintf_symname(al->sym, stdout); |
610723f2 DA |
1900 | } |
1901 | ||
1902 | if (print_dso) { | |
547a92e0 | 1903 | printf(" ("); |
a2cb3cf2 | 1904 | map__fprintf_dsoname(al->map, stdout); |
547a92e0 | 1905 | printf(")"); |
787bef17 | 1906 | } |
cc8fae1d AH |
1907 | |
1908 | if (print_srcline) | |
1909 | map__fprintf_srcline(al->map, al->addr, "\n ", stdout); | |
c0230b2b DA |
1910 | } |
1911 | } | |
5d67be97 AB |
1912 | |
1913 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1914 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1915 | { | |
8bac41cb | 1916 | int i, err = -1; |
5d67be97 AB |
1917 | struct cpu_map *map; |
1918 | ||
1919 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1920 | struct perf_evsel *evsel; | |
1921 | ||
1922 | evsel = perf_session__find_first_evtype(session, i); | |
1923 | if (!evsel) | |
1924 | continue; | |
1925 | ||
1926 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1927 | pr_err("File does not contain CPU events. " | |
1928 | "Remove -c option to proceed.\n"); | |
1929 | return -1; | |
1930 | } | |
1931 | } | |
1932 | ||
1933 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1934 | if (map == NULL) { |
1935 | pr_err("Invalid cpu_list\n"); | |
1936 | return -1; | |
1937 | } | |
5d67be97 AB |
1938 | |
1939 | for (i = 0; i < map->nr; i++) { | |
1940 | int cpu = map->map[i]; | |
1941 | ||
1942 | if (cpu >= MAX_NR_CPUS) { | |
1943 | pr_err("Requested CPU %d too large. " | |
1944 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 1945 | goto out_delete_map; |
5d67be97 AB |
1946 | } |
1947 | ||
1948 | set_bit(cpu, cpu_bitmap); | |
1949 | } | |
1950 | ||
8bac41cb SF |
1951 | err = 0; |
1952 | ||
1953 | out_delete_map: | |
f30a79b0 | 1954 | cpu_map__put(map); |
8bac41cb | 1955 | return err; |
5d67be97 | 1956 | } |
fbe96f29 SE |
1957 | |
1958 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1959 | bool full) | |
1960 | { | |
1961 | struct stat st; | |
c5765ece | 1962 | int fd, ret; |
fbe96f29 SE |
1963 | |
1964 | if (session == NULL || fp == NULL) | |
1965 | return; | |
1966 | ||
c5765ece MI |
1967 | fd = perf_data_file__fd(session->file); |
1968 | ||
cc9784bd | 1969 | ret = fstat(fd, &st); |
fbe96f29 SE |
1970 | if (ret == -1) |
1971 | return; | |
1972 | ||
1973 | fprintf(fp, "# ========\n"); | |
1974 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1975 | perf_header__fprintf_info(session, fp, full); | |
1976 | fprintf(fp, "# ========\n#\n"); | |
1977 | } | |
da378962 ACM |
1978 | |
1979 | ||
1980 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1981 | const struct perf_evsel_str_handler *assocs, | |
1982 | size_t nr_assocs) | |
1983 | { | |
da378962 | 1984 | struct perf_evsel *evsel; |
da378962 ACM |
1985 | size_t i; |
1986 | int err; | |
1987 | ||
1988 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1989 | /* |
1990 | * Adding a handler for an event not in the session, | |
1991 | * just ignore it. | |
1992 | */ | |
1993 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1994 | if (evsel == NULL) |
ccf53eac | 1995 | continue; |
da378962 ACM |
1996 | |
1997 | err = -EEXIST; | |
744a9719 | 1998 | if (evsel->handler != NULL) |
ccf53eac | 1999 | goto out; |
744a9719 | 2000 | evsel->handler = assocs[i].handler; |
da378962 ACM |
2001 | } |
2002 | ||
2003 | err = 0; | |
2004 | out: | |
2005 | return err; | |
da378962 | 2006 | } |
3c659eed AH |
2007 | |
2008 | int perf_event__process_id_index(struct perf_tool *tool __maybe_unused, | |
2009 | union perf_event *event, | |
2010 | struct perf_session *session) | |
2011 | { | |
2012 | struct perf_evlist *evlist = session->evlist; | |
2013 | struct id_index_event *ie = &event->id_index; | |
2014 | size_t i, nr, max_nr; | |
2015 | ||
2016 | max_nr = (ie->header.size - sizeof(struct id_index_event)) / | |
2017 | sizeof(struct id_index_entry); | |
2018 | nr = ie->nr; | |
2019 | if (nr > max_nr) | |
2020 | return -EINVAL; | |
2021 | ||
2022 | if (dump_trace) | |
2023 | fprintf(stdout, " nr: %zu\n", nr); | |
2024 | ||
2025 | for (i = 0; i < nr; i++) { | |
2026 | struct id_index_entry *e = &ie->entries[i]; | |
2027 | struct perf_sample_id *sid; | |
2028 | ||
2029 | if (dump_trace) { | |
2030 | fprintf(stdout, " ... id: %"PRIu64, e->id); | |
2031 | fprintf(stdout, " idx: %"PRIu64, e->idx); | |
2032 | fprintf(stdout, " cpu: %"PRId64, e->cpu); | |
2033 | fprintf(stdout, " tid: %"PRId64"\n", e->tid); | |
2034 | } | |
2035 | ||
2036 | sid = perf_evlist__id2sid(evlist, e->id); | |
2037 | if (!sid) | |
2038 | return -ENOENT; | |
2039 | sid->idx = e->idx; | |
2040 | sid->cpu = e->cpu; | |
2041 | sid->tid = e->tid; | |
2042 | } | |
2043 | return 0; | |
2044 | } | |
2045 | ||
2046 | int perf_event__synthesize_id_index(struct perf_tool *tool, | |
2047 | perf_event__handler_t process, | |
2048 | struct perf_evlist *evlist, | |
2049 | struct machine *machine) | |
2050 | { | |
2051 | union perf_event *ev; | |
2052 | struct perf_evsel *evsel; | |
2053 | size_t nr = 0, i = 0, sz, max_nr, n; | |
2054 | int err; | |
2055 | ||
2056 | pr_debug2("Synthesizing id index\n"); | |
2057 | ||
2058 | max_nr = (UINT16_MAX - sizeof(struct id_index_event)) / | |
2059 | sizeof(struct id_index_entry); | |
2060 | ||
cba9b847 | 2061 | evlist__for_each(evlist, evsel) |
3c659eed AH |
2062 | nr += evsel->ids; |
2063 | ||
2064 | n = nr > max_nr ? max_nr : nr; | |
2065 | sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry); | |
2066 | ev = zalloc(sz); | |
2067 | if (!ev) | |
2068 | return -ENOMEM; | |
2069 | ||
2070 | ev->id_index.header.type = PERF_RECORD_ID_INDEX; | |
2071 | ev->id_index.header.size = sz; | |
2072 | ev->id_index.nr = n; | |
2073 | ||
cba9b847 | 2074 | evlist__for_each(evlist, evsel) { |
3c659eed AH |
2075 | u32 j; |
2076 | ||
2077 | for (j = 0; j < evsel->ids; j++) { | |
2078 | struct id_index_entry *e; | |
2079 | struct perf_sample_id *sid; | |
2080 | ||
2081 | if (i >= n) { | |
2082 | err = process(tool, ev, NULL, machine); | |
2083 | if (err) | |
2084 | goto out_err; | |
2085 | nr -= n; | |
2086 | i = 0; | |
2087 | } | |
2088 | ||
2089 | e = &ev->id_index.entries[i++]; | |
2090 | ||
2091 | e->id = evsel->id[j]; | |
2092 | ||
2093 | sid = perf_evlist__id2sid(evlist, e->id); | |
2094 | if (!sid) { | |
2095 | free(ev); | |
2096 | return -ENOENT; | |
2097 | } | |
2098 | ||
2099 | e->idx = sid->idx; | |
2100 | e->cpu = sid->cpu; | |
2101 | e->tid = sid->tid; | |
2102 | } | |
2103 | } | |
2104 | ||
2105 | sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry); | |
2106 | ev->id_index.header.size = sz; | |
2107 | ev->id_index.nr = nr; | |
2108 | ||
2109 | err = process(tool, ev, NULL, machine); | |
2110 | out_err: | |
2111 | free(ev); | |
2112 | ||
2113 | return err; | |
2114 | } |