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" |
94c744b6 | 19 | |
c446870d AH |
20 | static int perf_session__deliver_event(struct perf_session *session, |
21 | union perf_event *event, | |
22 | struct perf_sample *sample, | |
23 | struct perf_tool *tool, | |
24 | u64 file_offset); | |
d10eb1eb | 25 | |
316c7136 | 26 | static int perf_session__open(struct perf_session *session) |
94c744b6 | 27 | { |
316c7136 | 28 | struct perf_data_file *file = session->file; |
8dc58101 | 29 | |
316c7136 | 30 | if (perf_session__read_header(session) < 0) { |
69996df4 | 31 | pr_err("incompatible file format (rerun with -v to learn more)"); |
6a4d98d7 | 32 | return -1; |
94c744b6 ACM |
33 | } |
34 | ||
cc9784bd JO |
35 | if (perf_data_file__is_pipe(file)) |
36 | return 0; | |
37 | ||
316c7136 | 38 | if (!perf_evlist__valid_sample_type(session->evlist)) { |
c2a70653 | 39 | pr_err("non matching sample_type"); |
6a4d98d7 | 40 | return -1; |
c2a70653 ACM |
41 | } |
42 | ||
316c7136 | 43 | if (!perf_evlist__valid_sample_id_all(session->evlist)) { |
c2a70653 | 44 | pr_err("non matching sample_id_all"); |
6a4d98d7 | 45 | return -1; |
c2a70653 ACM |
46 | } |
47 | ||
316c7136 | 48 | if (!perf_evlist__valid_read_format(session->evlist)) { |
9ede473c | 49 | pr_err("non matching read_format"); |
6a4d98d7 | 50 | return -1; |
9ede473c JO |
51 | } |
52 | ||
94c744b6 | 53 | return 0; |
94c744b6 ACM |
54 | } |
55 | ||
7b56cce2 | 56 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 57 | { |
7b56cce2 ACM |
58 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
59 | ||
7b56cce2 | 60 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
61 | } |
62 | ||
316c7136 | 63 | int perf_session__create_kernel_maps(struct perf_session *session) |
a1645ce1 | 64 | { |
316c7136 | 65 | int ret = machine__create_kernel_maps(&session->machines.host); |
a1645ce1 | 66 | |
a1645ce1 | 67 | if (ret >= 0) |
316c7136 | 68 | ret = machines__create_guest_kernel_maps(&session->machines); |
a1645ce1 ZY |
69 | return ret; |
70 | } | |
71 | ||
316c7136 | 72 | static void perf_session__destroy_kernel_maps(struct perf_session *session) |
076c6e45 | 73 | { |
316c7136 | 74 | machines__destroy_kernel_maps(&session->machines); |
076c6e45 ACM |
75 | } |
76 | ||
cfe1c414 AH |
77 | static bool perf_session__has_comm_exec(struct perf_session *session) |
78 | { | |
79 | struct perf_evsel *evsel; | |
80 | ||
81 | evlist__for_each(session->evlist, evsel) { | |
82 | if (evsel->attr.comm_exec) | |
83 | return true; | |
84 | } | |
85 | ||
86 | return false; | |
87 | } | |
88 | ||
89 | static void perf_session__set_comm_exec(struct perf_session *session) | |
90 | { | |
91 | bool comm_exec = perf_session__has_comm_exec(session); | |
92 | ||
93 | machines__set_comm_exec(&session->machines, comm_exec); | |
94 | } | |
95 | ||
d10eb1eb | 96 | static int ordered_events__deliver_event(struct ordered_events *oe, |
9870d780 | 97 | struct ordered_event *event) |
d10eb1eb | 98 | { |
9870d780 ACM |
99 | struct perf_sample sample; |
100 | struct perf_session *session = container_of(oe, struct perf_session, | |
101 | ordered_events); | |
102 | int ret = perf_evlist__parse_sample(session->evlist, event->event, &sample); | |
103 | ||
104 | if (ret) { | |
105 | pr_err("Can't parse sample, err = %d\n", ret); | |
106 | return ret; | |
107 | } | |
108 | ||
c446870d AH |
109 | return perf_session__deliver_event(session, event->event, &sample, |
110 | session->tool, event->file_offset); | |
d10eb1eb ACM |
111 | } |
112 | ||
f5fc1412 JO |
113 | struct perf_session *perf_session__new(struct perf_data_file *file, |
114 | bool repipe, struct perf_tool *tool) | |
94c744b6 | 115 | { |
316c7136 | 116 | struct perf_session *session = zalloc(sizeof(*session)); |
efad1415 | 117 | |
316c7136 | 118 | if (!session) |
94c744b6 ACM |
119 | goto out; |
120 | ||
316c7136 | 121 | session->repipe = repipe; |
9870d780 | 122 | session->tool = tool; |
99fa2984 | 123 | INIT_LIST_HEAD(&session->auxtrace_index); |
316c7136 | 124 | machines__init(&session->machines); |
9870d780 | 125 | ordered_events__init(&session->ordered_events, ordered_events__deliver_event); |
94c744b6 | 126 | |
6a4d98d7 JO |
127 | if (file) { |
128 | if (perf_data_file__open(file)) | |
64abebf7 | 129 | goto out_delete; |
6a4d98d7 | 130 | |
316c7136 | 131 | session->file = file; |
6a4d98d7 JO |
132 | |
133 | if (perf_data_file__is_read(file)) { | |
316c7136 | 134 | if (perf_session__open(session) < 0) |
6a4d98d7 JO |
135 | goto out_close; |
136 | ||
316c7136 | 137 | perf_session__set_id_hdr_size(session); |
cfe1c414 | 138 | perf_session__set_comm_exec(session); |
6a4d98d7 JO |
139 | } |
140 | } | |
141 | ||
142 | if (!file || perf_data_file__is_write(file)) { | |
64abebf7 ACM |
143 | /* |
144 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 145 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 | 146 | */ |
316c7136 | 147 | if (perf_session__create_kernel_maps(session) < 0) |
a5c2a4c9 | 148 | pr_warning("Cannot read kernel map\n"); |
64abebf7 | 149 | } |
d549c769 | 150 | |
45694aa7 | 151 | if (tool && tool->ordering_requires_timestamps && |
0a8cb85c | 152 | tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { |
21ef97f0 | 153 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
0a8cb85c | 154 | tool->ordered_events = false; |
d10eb1eb | 155 | } |
21ef97f0 | 156 | |
316c7136 | 157 | return session; |
6a4d98d7 JO |
158 | |
159 | out_close: | |
160 | perf_data_file__close(file); | |
161 | out_delete: | |
316c7136 | 162 | perf_session__delete(session); |
6a4d98d7 | 163 | out: |
4aa65636 | 164 | return NULL; |
94c744b6 ACM |
165 | } |
166 | ||
b424eba2 ACM |
167 | static void perf_session__delete_threads(struct perf_session *session) |
168 | { | |
876650e6 | 169 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
170 | } |
171 | ||
03cd2094 NK |
172 | static void perf_session_env__delete(struct perf_session_env *env) |
173 | { | |
74cf249d ACM |
174 | zfree(&env->hostname); |
175 | zfree(&env->os_release); | |
176 | zfree(&env->version); | |
177 | zfree(&env->arch); | |
178 | zfree(&env->cpu_desc); | |
179 | zfree(&env->cpuid); | |
180 | ||
181 | zfree(&env->cmdline); | |
182 | zfree(&env->sibling_cores); | |
183 | zfree(&env->sibling_threads); | |
184 | zfree(&env->numa_nodes); | |
185 | zfree(&env->pmu_mappings); | |
03cd2094 NK |
186 | } |
187 | ||
316c7136 | 188 | void perf_session__delete(struct perf_session *session) |
94c744b6 | 189 | { |
c446870d | 190 | auxtrace__free(session); |
99fa2984 | 191 | auxtrace_index__free(&session->auxtrace_index); |
316c7136 | 192 | perf_session__destroy_kernel_maps(session); |
316c7136 ACM |
193 | perf_session__delete_threads(session); |
194 | perf_session_env__delete(&session->header.env); | |
195 | machines__exit(&session->machines); | |
196 | if (session->file) | |
197 | perf_data_file__close(session->file); | |
198 | free(session); | |
94c744b6 | 199 | } |
a328626b | 200 | |
47c3d109 AH |
201 | static int process_event_synth_tracing_data_stub(struct perf_tool *tool |
202 | __maybe_unused, | |
203 | union perf_event *event | |
1d037ca1 IT |
204 | __maybe_unused, |
205 | struct perf_session *session | |
206 | __maybe_unused) | |
d20deb64 ACM |
207 | { |
208 | dump_printf(": unhandled!\n"); | |
209 | return 0; | |
210 | } | |
211 | ||
47c3d109 AH |
212 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
213 | union perf_event *event __maybe_unused, | |
1d037ca1 IT |
214 | struct perf_evlist **pevlist |
215 | __maybe_unused) | |
10d0f086 ACM |
216 | { |
217 | dump_printf(": unhandled!\n"); | |
218 | return 0; | |
219 | } | |
220 | ||
1d037ca1 IT |
221 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
222 | union perf_event *event __maybe_unused, | |
223 | struct perf_sample *sample __maybe_unused, | |
224 | struct perf_evsel *evsel __maybe_unused, | |
225 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
226 | { |
227 | dump_printf(": unhandled!\n"); | |
228 | return 0; | |
229 | } | |
230 | ||
1d037ca1 IT |
231 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
232 | union perf_event *event __maybe_unused, | |
233 | struct perf_sample *sample __maybe_unused, | |
234 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
235 | { |
236 | dump_printf(": unhandled!\n"); | |
237 | return 0; | |
238 | } | |
239 | ||
d704ebda ACM |
240 | static int process_build_id_stub(struct perf_tool *tool __maybe_unused, |
241 | union perf_event *event __maybe_unused, | |
242 | struct perf_session *session __maybe_unused) | |
243 | { | |
244 | dump_printf(": unhandled!\n"); | |
245 | return 0; | |
246 | } | |
247 | ||
1d037ca1 IT |
248 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
249 | union perf_event *event __maybe_unused, | |
d704ebda | 250 | struct ordered_events *oe __maybe_unused) |
743eb868 ACM |
251 | { |
252 | dump_printf(": unhandled!\n"); | |
253 | return 0; | |
254 | } | |
255 | ||
45694aa7 | 256 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 | 257 | union perf_event *event, |
d704ebda | 258 | struct ordered_events *oe); |
d6b17beb | 259 | |
3c659eed AH |
260 | static int process_id_index_stub(struct perf_tool *tool __maybe_unused, |
261 | union perf_event *event __maybe_unused, | |
262 | struct perf_session *perf_session | |
263 | __maybe_unused) | |
264 | { | |
265 | dump_printf(": unhandled!\n"); | |
266 | return 0; | |
267 | } | |
268 | ||
a16ac023 AH |
269 | static int process_event_auxtrace_info_stub(struct perf_tool *tool __maybe_unused, |
270 | union perf_event *event __maybe_unused, | |
271 | struct perf_session *session __maybe_unused) | |
272 | { | |
273 | dump_printf(": unhandled!\n"); | |
274 | return 0; | |
275 | } | |
276 | ||
277 | static int skipn(int fd, off_t n) | |
278 | { | |
279 | char buf[4096]; | |
280 | ssize_t ret; | |
281 | ||
282 | while (n > 0) { | |
283 | ret = read(fd, buf, min(n, (off_t)sizeof(buf))); | |
284 | if (ret <= 0) | |
285 | return ret; | |
286 | n -= ret; | |
287 | } | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
292 | static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused, | |
293 | union perf_event *event, | |
294 | struct perf_session *session | |
295 | __maybe_unused) | |
296 | { | |
297 | dump_printf(": unhandled!\n"); | |
298 | if (perf_data_file__is_pipe(session->file)) | |
299 | skipn(perf_data_file__fd(session->file), event->auxtrace.size); | |
300 | return event->auxtrace.size; | |
301 | } | |
302 | ||
e9bf54d2 AH |
303 | static |
304 | int process_event_auxtrace_error_stub(struct perf_tool *tool __maybe_unused, | |
305 | union perf_event *event __maybe_unused, | |
306 | struct perf_session *session __maybe_unused) | |
307 | { | |
308 | dump_printf(": unhandled!\n"); | |
309 | return 0; | |
310 | } | |
311 | ||
9c501402 | 312 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 313 | { |
45694aa7 ACM |
314 | if (tool->sample == NULL) |
315 | tool->sample = process_event_sample_stub; | |
316 | if (tool->mmap == NULL) | |
317 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
318 | if (tool->mmap2 == NULL) |
319 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
320 | if (tool->comm == NULL) |
321 | tool->comm = process_event_stub; | |
322 | if (tool->fork == NULL) | |
323 | tool->fork = process_event_stub; | |
324 | if (tool->exit == NULL) | |
325 | tool->exit = process_event_stub; | |
326 | if (tool->lost == NULL) | |
327 | tool->lost = perf_event__process_lost; | |
4a96f7a0 AH |
328 | if (tool->aux == NULL) |
329 | tool->aux = perf_event__process_aux; | |
45694aa7 ACM |
330 | if (tool->read == NULL) |
331 | tool->read = process_event_sample_stub; | |
332 | if (tool->throttle == NULL) | |
333 | tool->throttle = process_event_stub; | |
334 | if (tool->unthrottle == NULL) | |
335 | tool->unthrottle = process_event_stub; | |
336 | if (tool->attr == NULL) | |
337 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
338 | if (tool->tracing_data == NULL) |
339 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
340 | if (tool->build_id == NULL) | |
d704ebda | 341 | tool->build_id = process_build_id_stub; |
45694aa7 | 342 | if (tool->finished_round == NULL) { |
0a8cb85c | 343 | if (tool->ordered_events) |
45694aa7 | 344 | tool->finished_round = process_finished_round; |
d6b17beb | 345 | else |
45694aa7 | 346 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 347 | } |
3c659eed AH |
348 | if (tool->id_index == NULL) |
349 | tool->id_index = process_id_index_stub; | |
a16ac023 AH |
350 | if (tool->auxtrace_info == NULL) |
351 | tool->auxtrace_info = process_event_auxtrace_info_stub; | |
352 | if (tool->auxtrace == NULL) | |
353 | tool->auxtrace = process_event_auxtrace_stub; | |
e9bf54d2 AH |
354 | if (tool->auxtrace_error == NULL) |
355 | tool->auxtrace_error = process_event_auxtrace_error_stub; | |
06aae590 | 356 | } |
48000a1a | 357 | |
268fb20f JO |
358 | static void swap_sample_id_all(union perf_event *event, void *data) |
359 | { | |
360 | void *end = (void *) event + event->header.size; | |
361 | int size = end - data; | |
362 | ||
363 | BUG_ON(size % sizeof(u64)); | |
364 | mem_bswap_64(data, size); | |
365 | } | |
366 | ||
367 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 368 | bool sample_id_all __maybe_unused) |
ba21594c | 369 | { |
8115d60c ACM |
370 | struct perf_event_header *hdr = &event->header; |
371 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
372 | } |
373 | ||
268fb20f | 374 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 375 | { |
8115d60c ACM |
376 | event->comm.pid = bswap_32(event->comm.pid); |
377 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
378 | |
379 | if (sample_id_all) { | |
380 | void *data = &event->comm.comm; | |
381 | ||
9ac3e487 | 382 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
383 | swap_sample_id_all(event, data); |
384 | } | |
ba21594c ACM |
385 | } |
386 | ||
268fb20f JO |
387 | static void perf_event__mmap_swap(union perf_event *event, |
388 | bool sample_id_all) | |
ba21594c | 389 | { |
8115d60c ACM |
390 | event->mmap.pid = bswap_32(event->mmap.pid); |
391 | event->mmap.tid = bswap_32(event->mmap.tid); | |
392 | event->mmap.start = bswap_64(event->mmap.start); | |
393 | event->mmap.len = bswap_64(event->mmap.len); | |
394 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
395 | |
396 | if (sample_id_all) { | |
397 | void *data = &event->mmap.filename; | |
398 | ||
9ac3e487 | 399 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
400 | swap_sample_id_all(event, data); |
401 | } | |
ba21594c ACM |
402 | } |
403 | ||
5c5e854b SE |
404 | static void perf_event__mmap2_swap(union perf_event *event, |
405 | bool sample_id_all) | |
406 | { | |
407 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
408 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
409 | event->mmap2.start = bswap_64(event->mmap2.start); | |
410 | event->mmap2.len = bswap_64(event->mmap2.len); | |
411 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
412 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
413 | event->mmap2.min = bswap_32(event->mmap2.min); | |
414 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
415 | ||
416 | if (sample_id_all) { | |
417 | void *data = &event->mmap2.filename; | |
418 | ||
419 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
420 | swap_sample_id_all(event, data); | |
421 | } | |
422 | } | |
268fb20f | 423 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 424 | { |
8115d60c ACM |
425 | event->fork.pid = bswap_32(event->fork.pid); |
426 | event->fork.tid = bswap_32(event->fork.tid); | |
427 | event->fork.ppid = bswap_32(event->fork.ppid); | |
428 | event->fork.ptid = bswap_32(event->fork.ptid); | |
429 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
430 | |
431 | if (sample_id_all) | |
432 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
433 | } |
434 | ||
268fb20f | 435 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 436 | { |
8115d60c ACM |
437 | event->read.pid = bswap_32(event->read.pid); |
438 | event->read.tid = bswap_32(event->read.tid); | |
439 | event->read.value = bswap_64(event->read.value); | |
440 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
441 | event->read.time_running = bswap_64(event->read.time_running); | |
442 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
443 | |
444 | if (sample_id_all) | |
445 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
446 | } |
447 | ||
4a96f7a0 AH |
448 | static void perf_event__aux_swap(union perf_event *event, bool sample_id_all) |
449 | { | |
450 | event->aux.aux_offset = bswap_64(event->aux.aux_offset); | |
451 | event->aux.aux_size = bswap_64(event->aux.aux_size); | |
452 | event->aux.flags = bswap_64(event->aux.flags); | |
453 | ||
454 | if (sample_id_all) | |
455 | swap_sample_id_all(event, &event->aux + 1); | |
456 | } | |
457 | ||
dd96c46b JO |
458 | static void perf_event__throttle_swap(union perf_event *event, |
459 | bool sample_id_all) | |
460 | { | |
461 | event->throttle.time = bswap_64(event->throttle.time); | |
462 | event->throttle.id = bswap_64(event->throttle.id); | |
463 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
464 | ||
465 | if (sample_id_all) | |
466 | swap_sample_id_all(event, &event->throttle + 1); | |
467 | } | |
468 | ||
e108c66e JO |
469 | static u8 revbyte(u8 b) |
470 | { | |
471 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
472 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
473 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
474 | return (u8) rev; | |
475 | } | |
476 | ||
477 | /* | |
478 | * XXX this is hack in attempt to carry flags bitfield | |
479 | * throught endian village. ABI says: | |
480 | * | |
481 | * Bit-fields are allocated from right to left (least to most significant) | |
482 | * on little-endian implementations and from left to right (most to least | |
483 | * significant) on big-endian implementations. | |
484 | * | |
485 | * The above seems to be byte specific, so we need to reverse each | |
486 | * byte of the bitfield. 'Internet' also says this might be implementation | |
487 | * specific and we probably need proper fix and carry perf_event_attr | |
488 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
489 | * to work for now. | |
490 | */ | |
491 | static void swap_bitfield(u8 *p, unsigned len) | |
492 | { | |
493 | unsigned i; | |
494 | ||
495 | for (i = 0; i < len; i++) { | |
496 | *p = revbyte(*p); | |
497 | p++; | |
498 | } | |
499 | } | |
500 | ||
eda3913b DA |
501 | /* exported for swapping attributes in file header */ |
502 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
503 | { | |
504 | attr->type = bswap_32(attr->type); | |
505 | attr->size = bswap_32(attr->size); | |
506 | attr->config = bswap_64(attr->config); | |
507 | attr->sample_period = bswap_64(attr->sample_period); | |
508 | attr->sample_type = bswap_64(attr->sample_type); | |
509 | attr->read_format = bswap_64(attr->read_format); | |
510 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
511 | attr->bp_type = bswap_32(attr->bp_type); | |
512 | attr->bp_addr = bswap_64(attr->bp_addr); | |
513 | attr->bp_len = bswap_64(attr->bp_len); | |
7db59528 AH |
514 | attr->branch_sample_type = bswap_64(attr->branch_sample_type); |
515 | attr->sample_regs_user = bswap_64(attr->sample_regs_user); | |
516 | attr->sample_stack_user = bswap_32(attr->sample_stack_user); | |
70d73de4 | 517 | attr->aux_watermark = bswap_32(attr->aux_watermark); |
e108c66e JO |
518 | |
519 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
520 | } |
521 | ||
268fb20f | 522 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 523 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
524 | { |
525 | size_t size; | |
526 | ||
eda3913b | 527 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 528 | |
8115d60c ACM |
529 | size = event->header.size; |
530 | size -= (void *)&event->attr.id - (void *)event; | |
531 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
532 | } |
533 | ||
268fb20f | 534 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 535 | bool sample_id_all __maybe_unused) |
cd19a035 | 536 | { |
8115d60c ACM |
537 | event->event_type.event_type.event_id = |
538 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
539 | } |
540 | ||
268fb20f | 541 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 542 | bool sample_id_all __maybe_unused) |
9215545e | 543 | { |
8115d60c | 544 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
545 | } |
546 | ||
a16ac023 AH |
547 | static void perf_event__auxtrace_info_swap(union perf_event *event, |
548 | bool sample_id_all __maybe_unused) | |
549 | { | |
550 | size_t size; | |
551 | ||
552 | event->auxtrace_info.type = bswap_32(event->auxtrace_info.type); | |
553 | ||
554 | size = event->header.size; | |
555 | size -= (void *)&event->auxtrace_info.priv - (void *)event; | |
556 | mem_bswap_64(event->auxtrace_info.priv, size); | |
557 | } | |
558 | ||
559 | static void perf_event__auxtrace_swap(union perf_event *event, | |
560 | bool sample_id_all __maybe_unused) | |
561 | { | |
562 | event->auxtrace.size = bswap_64(event->auxtrace.size); | |
563 | event->auxtrace.offset = bswap_64(event->auxtrace.offset); | |
564 | event->auxtrace.reference = bswap_64(event->auxtrace.reference); | |
565 | event->auxtrace.idx = bswap_32(event->auxtrace.idx); | |
566 | event->auxtrace.tid = bswap_32(event->auxtrace.tid); | |
567 | event->auxtrace.cpu = bswap_32(event->auxtrace.cpu); | |
568 | } | |
569 | ||
e9bf54d2 AH |
570 | static void perf_event__auxtrace_error_swap(union perf_event *event, |
571 | bool sample_id_all __maybe_unused) | |
572 | { | |
573 | event->auxtrace_error.type = bswap_32(event->auxtrace_error.type); | |
574 | event->auxtrace_error.code = bswap_32(event->auxtrace_error.code); | |
575 | event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu); | |
576 | event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid); | |
577 | event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid); | |
578 | event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip); | |
579 | } | |
580 | ||
268fb20f JO |
581 | typedef void (*perf_event__swap_op)(union perf_event *event, |
582 | bool sample_id_all); | |
ba21594c | 583 | |
8115d60c ACM |
584 | static perf_event__swap_op perf_event__swap_ops[] = { |
585 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 586 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
587 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
588 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
589 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
590 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
591 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
592 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
593 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 594 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
4a96f7a0 | 595 | [PERF_RECORD_AUX] = perf_event__aux_swap, |
eda3913b | 596 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
597 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
598 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
599 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
3c659eed | 600 | [PERF_RECORD_ID_INDEX] = perf_event__all64_swap, |
a16ac023 AH |
601 | [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap, |
602 | [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap, | |
e9bf54d2 | 603 | [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap, |
8115d60c | 604 | [PERF_RECORD_HEADER_MAX] = NULL, |
ba21594c ACM |
605 | }; |
606 | ||
d6b17beb FW |
607 | /* |
608 | * When perf record finishes a pass on every buffers, it records this pseudo | |
609 | * event. | |
610 | * We record the max timestamp t found in the pass n. | |
611 | * Assuming these timestamps are monotonic across cpus, we know that if | |
612 | * a buffer still has events with timestamps below t, they will be all | |
613 | * available and then read in the pass n + 1. | |
614 | * Hence when we start to read the pass n + 2, we can safely flush every | |
615 | * events with timestamps below t. | |
616 | * | |
617 | * ============ PASS n ================= | |
618 | * CPU 0 | CPU 1 | |
619 | * | | |
620 | * cnt1 timestamps | cnt2 timestamps | |
621 | * 1 | 2 | |
622 | * 2 | 3 | |
623 | * - | 4 <--- max recorded | |
624 | * | |
625 | * ============ PASS n + 1 ============== | |
626 | * CPU 0 | CPU 1 | |
627 | * | | |
628 | * cnt1 timestamps | cnt2 timestamps | |
629 | * 3 | 5 | |
630 | * 4 | 6 | |
631 | * 5 | 7 <---- max recorded | |
632 | * | |
633 | * Flush every events below timestamp 4 | |
634 | * | |
635 | * ============ PASS n + 2 ============== | |
636 | * CPU 0 | CPU 1 | |
637 | * | | |
638 | * cnt1 timestamps | cnt2 timestamps | |
639 | * 6 | 8 | |
640 | * 7 | 9 | |
641 | * - | 10 | |
642 | * | |
643 | * Flush every events below timestamp 7 | |
644 | * etc... | |
645 | */ | |
b7b61cbe | 646 | static int process_finished_round(struct perf_tool *tool __maybe_unused, |
1d037ca1 | 647 | union perf_event *event __maybe_unused, |
d704ebda | 648 | struct ordered_events *oe) |
d6b17beb | 649 | { |
b7b61cbe | 650 | return ordered_events__flush(oe, OE_FLUSH__ROUND); |
d6b17beb FW |
651 | } |
652 | ||
b7b61cbe ACM |
653 | int perf_session__queue_event(struct perf_session *s, union perf_event *event, |
654 | struct perf_sample *sample, u64 file_offset) | |
c61e52ee | 655 | { |
4a6b362f | 656 | return ordered_events__queue(&s->ordered_events, event, sample, file_offset); |
640c03ce | 657 | } |
c61e52ee | 658 | |
384b6055 | 659 | static void callchain__lbr_callstack_printf(struct perf_sample *sample) |
640c03ce | 660 | { |
384b6055 KL |
661 | struct ip_callchain *callchain = sample->callchain; |
662 | struct branch_stack *lbr_stack = sample->branch_stack; | |
663 | u64 kernel_callchain_nr = callchain->nr; | |
640c03ce | 664 | unsigned int i; |
c61e52ee | 665 | |
384b6055 KL |
666 | for (i = 0; i < kernel_callchain_nr; i++) { |
667 | if (callchain->ips[i] == PERF_CONTEXT_USER) | |
668 | break; | |
669 | } | |
670 | ||
671 | if ((i != kernel_callchain_nr) && lbr_stack->nr) { | |
672 | u64 total_nr; | |
673 | /* | |
674 | * LBR callstack can only get user call chain, | |
675 | * i is kernel call chain number, | |
676 | * 1 is PERF_CONTEXT_USER. | |
677 | * | |
678 | * The user call chain is stored in LBR registers. | |
679 | * LBR are pair registers. The caller is stored | |
680 | * in "from" register, while the callee is stored | |
681 | * in "to" register. | |
682 | * For example, there is a call stack | |
683 | * "A"->"B"->"C"->"D". | |
684 | * The LBR registers will recorde like | |
685 | * "C"->"D", "B"->"C", "A"->"B". | |
686 | * So only the first "to" register and all "from" | |
687 | * registers are needed to construct the whole stack. | |
688 | */ | |
689 | total_nr = i + 1 + lbr_stack->nr + 1; | |
690 | kernel_callchain_nr = i + 1; | |
691 | ||
692 | printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr); | |
693 | ||
694 | for (i = 0; i < kernel_callchain_nr; i++) | |
695 | printf("..... %2d: %016" PRIx64 "\n", | |
696 | i, callchain->ips[i]); | |
697 | ||
698 | printf("..... %2d: %016" PRIx64 "\n", | |
699 | (int)(kernel_callchain_nr), lbr_stack->entries[0].to); | |
700 | for (i = 0; i < lbr_stack->nr; i++) | |
701 | printf("..... %2d: %016" PRIx64 "\n", | |
702 | (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from); | |
703 | } | |
704 | } | |
705 | ||
706 | static void callchain__printf(struct perf_evsel *evsel, | |
707 | struct perf_sample *sample) | |
708 | { | |
709 | unsigned int i; | |
710 | struct ip_callchain *callchain = sample->callchain; | |
711 | ||
712 | if (has_branch_callstack(evsel)) | |
713 | callchain__lbr_callstack_printf(sample); | |
714 | ||
715 | printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr); | |
640c03ce | 716 | |
384b6055 | 717 | for (i = 0; i < callchain->nr; i++) |
9486aa38 | 718 | printf("..... %2d: %016" PRIx64 "\n", |
384b6055 | 719 | i, callchain->ips[i]); |
c61e52ee FW |
720 | } |
721 | ||
b5387528 RAV |
722 | static void branch_stack__printf(struct perf_sample *sample) |
723 | { | |
724 | uint64_t i; | |
725 | ||
726 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
727 | ||
728 | for (i = 0; i < sample->branch_stack->nr; i++) | |
729 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
730 | i, sample->branch_stack->entries[i].from, | |
731 | sample->branch_stack->entries[i].to); | |
732 | } | |
733 | ||
0f6a3015 JO |
734 | static void regs_dump__printf(u64 mask, u64 *regs) |
735 | { | |
736 | unsigned rid, i = 0; | |
737 | ||
738 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
739 | u64 val = regs[i++]; | |
740 | ||
741 | printf(".... %-5s 0x%" PRIx64 "\n", | |
742 | perf_reg_name(rid), val); | |
743 | } | |
744 | } | |
745 | ||
6a21c0b5 SE |
746 | static const char *regs_abi[] = { |
747 | [PERF_SAMPLE_REGS_ABI_NONE] = "none", | |
748 | [PERF_SAMPLE_REGS_ABI_32] = "32-bit", | |
749 | [PERF_SAMPLE_REGS_ABI_64] = "64-bit", | |
750 | }; | |
751 | ||
752 | static inline const char *regs_dump_abi(struct regs_dump *d) | |
753 | { | |
754 | if (d->abi > PERF_SAMPLE_REGS_ABI_64) | |
755 | return "unknown"; | |
756 | ||
757 | return regs_abi[d->abi]; | |
758 | } | |
759 | ||
760 | static void regs__printf(const char *type, struct regs_dump *regs) | |
761 | { | |
762 | u64 mask = regs->mask; | |
763 | ||
764 | printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n", | |
765 | type, | |
766 | mask, | |
767 | regs_dump_abi(regs)); | |
768 | ||
769 | regs_dump__printf(mask, regs->regs); | |
770 | } | |
771 | ||
352ea45a | 772 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
773 | { |
774 | struct regs_dump *user_regs = &sample->user_regs; | |
775 | ||
6a21c0b5 SE |
776 | if (user_regs->regs) |
777 | regs__printf("user", user_regs); | |
778 | } | |
779 | ||
780 | static void regs_intr__printf(struct perf_sample *sample) | |
781 | { | |
782 | struct regs_dump *intr_regs = &sample->intr_regs; | |
783 | ||
784 | if (intr_regs->regs) | |
785 | regs__printf("intr", intr_regs); | |
0f6a3015 JO |
786 | } |
787 | ||
788 | static void stack_user__printf(struct stack_dump *dump) | |
789 | { | |
790 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
791 | dump->size, dump->offset); | |
792 | } | |
793 | ||
9fa8727a | 794 | static void perf_evlist__print_tstamp(struct perf_evlist *evlist, |
8115d60c | 795 | union perf_event *event, |
8d50e5b4 | 796 | struct perf_sample *sample) |
9c90a61c | 797 | { |
9fa8727a | 798 | u64 sample_type = __perf_evlist__combined_sample_type(evlist); |
7f3be652 | 799 | |
9c90a61c | 800 | if (event->header.type != PERF_RECORD_SAMPLE && |
9fa8727a | 801 | !perf_evlist__sample_id_all(evlist)) { |
9c90a61c ACM |
802 | fputs("-1 -1 ", stdout); |
803 | return; | |
804 | } | |
805 | ||
7f3be652 | 806 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
807 | printf("%u ", sample->cpu); |
808 | ||
7f3be652 | 809 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 810 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
811 | } |
812 | ||
9ede473c JO |
813 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
814 | { | |
815 | printf("... sample_read:\n"); | |
816 | ||
817 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
818 | printf("...... time enabled %016" PRIx64 "\n", | |
819 | sample->read.time_enabled); | |
820 | ||
821 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
822 | printf("...... time running %016" PRIx64 "\n", | |
823 | sample->read.time_running); | |
824 | ||
825 | if (read_format & PERF_FORMAT_GROUP) { | |
826 | u64 i; | |
827 | ||
828 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
829 | ||
830 | for (i = 0; i < sample->read.group.nr; i++) { | |
831 | struct sample_read_value *value; | |
832 | ||
833 | value = &sample->read.group.values[i]; | |
834 | printf("..... id %016" PRIx64 | |
835 | ", value %016" PRIx64 "\n", | |
836 | value->id, value->value); | |
837 | } | |
838 | } else | |
839 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
840 | sample->read.one.id, sample->read.one.value); | |
841 | } | |
842 | ||
9fa8727a | 843 | static void dump_event(struct perf_evlist *evlist, union perf_event *event, |
8d50e5b4 | 844 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
845 | { |
846 | if (!dump_trace) | |
847 | return; | |
848 | ||
9486aa38 ACM |
849 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
850 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
851 | |
852 | trace_event(event); | |
853 | ||
854 | if (sample) | |
9fa8727a | 855 | perf_evlist__print_tstamp(evlist, event, sample); |
9aefcab0 | 856 | |
9486aa38 | 857 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 858 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
859 | } |
860 | ||
0f6a3015 | 861 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 862 | struct perf_sample *sample) |
9aefcab0 | 863 | { |
7f3be652 ACM |
864 | u64 sample_type; |
865 | ||
ddbc24b7 ACM |
866 | if (!dump_trace) |
867 | return; | |
868 | ||
0ea590ae | 869 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 870 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 871 | sample->period, sample->addr); |
9aefcab0 | 872 | |
0f6a3015 | 873 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
874 | |
875 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
384b6055 | 876 | callchain__printf(evsel, sample); |
b5387528 | 877 | |
384b6055 | 878 | if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel)) |
b5387528 | 879 | branch_stack__printf(sample); |
0f6a3015 JO |
880 | |
881 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 882 | regs_user__printf(sample); |
0f6a3015 | 883 | |
6a21c0b5 SE |
884 | if (sample_type & PERF_SAMPLE_REGS_INTR) |
885 | regs_intr__printf(sample); | |
886 | ||
0f6a3015 JO |
887 | if (sample_type & PERF_SAMPLE_STACK_USER) |
888 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
889 | |
890 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
891 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
892 | |
893 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
894 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 895 | |
475eeab9 AK |
896 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
897 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
898 | ||
9ede473c JO |
899 | if (sample_type & PERF_SAMPLE_READ) |
900 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
901 | } |
902 | ||
54245fdc | 903 | static struct machine *machines__find_for_cpumode(struct machines *machines, |
ef89325f AH |
904 | union perf_event *event, |
905 | struct perf_sample *sample) | |
743eb868 ACM |
906 | { |
907 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
ad85ace0 | 908 | struct machine *machine; |
743eb868 | 909 | |
7c0f4a41 DA |
910 | if (perf_guest && |
911 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
912 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
913 | u32 pid; |
914 | ||
5c5e854b SE |
915 | if (event->header.type == PERF_RECORD_MMAP |
916 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
917 | pid = event->mmap.pid; |
918 | else | |
ef89325f | 919 | pid = sample->pid; |
7fb0a5ee | 920 | |
54245fdc | 921 | machine = machines__find(machines, pid); |
ad85ace0 | 922 | if (!machine) |
54245fdc | 923 | machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID); |
ad85ace0 | 924 | return machine; |
7fb0a5ee | 925 | } |
743eb868 | 926 | |
54245fdc | 927 | return &machines->host; |
743eb868 ACM |
928 | } |
929 | ||
313e53b0 | 930 | static int deliver_sample_value(struct perf_evlist *evlist, |
e4caec0d JO |
931 | struct perf_tool *tool, |
932 | union perf_event *event, | |
933 | struct perf_sample *sample, | |
934 | struct sample_read_value *v, | |
935 | struct machine *machine) | |
936 | { | |
313e53b0 | 937 | struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id); |
e4caec0d | 938 | |
e4caec0d JO |
939 | if (sid) { |
940 | sample->id = v->id; | |
941 | sample->period = v->value - sid->period; | |
942 | sid->period = v->value; | |
943 | } | |
944 | ||
945 | if (!sid || sid->evsel == NULL) { | |
313e53b0 | 946 | ++evlist->stats.nr_unknown_id; |
e4caec0d JO |
947 | return 0; |
948 | } | |
949 | ||
950 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
951 | } | |
952 | ||
313e53b0 | 953 | static int deliver_sample_group(struct perf_evlist *evlist, |
e4caec0d JO |
954 | struct perf_tool *tool, |
955 | union perf_event *event, | |
956 | struct perf_sample *sample, | |
957 | struct machine *machine) | |
958 | { | |
959 | int ret = -EINVAL; | |
960 | u64 i; | |
961 | ||
962 | for (i = 0; i < sample->read.group.nr; i++) { | |
313e53b0 | 963 | ret = deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
964 | &sample->read.group.values[i], |
965 | machine); | |
966 | if (ret) | |
967 | break; | |
968 | } | |
969 | ||
970 | return ret; | |
971 | } | |
972 | ||
973 | static int | |
313e53b0 | 974 | perf_evlist__deliver_sample(struct perf_evlist *evlist, |
e4caec0d JO |
975 | struct perf_tool *tool, |
976 | union perf_event *event, | |
977 | struct perf_sample *sample, | |
978 | struct perf_evsel *evsel, | |
979 | struct machine *machine) | |
980 | { | |
981 | /* We know evsel != NULL. */ | |
982 | u64 sample_type = evsel->attr.sample_type; | |
983 | u64 read_format = evsel->attr.read_format; | |
984 | ||
985 | /* Standard sample delievery. */ | |
986 | if (!(sample_type & PERF_SAMPLE_READ)) | |
987 | return tool->sample(tool, event, sample, evsel, machine); | |
988 | ||
989 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
990 | if (read_format & PERF_FORMAT_GROUP) | |
313e53b0 | 991 | return deliver_sample_group(evlist, tool, event, sample, |
e4caec0d JO |
992 | machine); |
993 | else | |
313e53b0 | 994 | return deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
995 | &sample->read.one, machine); |
996 | } | |
997 | ||
d10eb1eb ACM |
998 | static int machines__deliver_event(struct machines *machines, |
999 | struct perf_evlist *evlist, | |
1000 | union perf_event *event, | |
1001 | struct perf_sample *sample, | |
1002 | struct perf_tool *tool, u64 file_offset) | |
cbf41645 | 1003 | { |
9e69c210 | 1004 | struct perf_evsel *evsel; |
743eb868 | 1005 | struct machine *machine; |
9e69c210 | 1006 | |
9fa8727a | 1007 | dump_event(evlist, event, file_offset, sample); |
532e7269 | 1008 | |
313e53b0 | 1009 | evsel = perf_evlist__id2evsel(evlist, sample->id); |
7b27509f | 1010 | |
fa713a4e | 1011 | machine = machines__find_for_cpumode(machines, event, sample); |
743eb868 | 1012 | |
cbf41645 TG |
1013 | switch (event->header.type) { |
1014 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 1015 | dump_sample(evsel, event, sample); |
9e69c210 | 1016 | if (evsel == NULL) { |
313e53b0 | 1017 | ++evlist->stats.nr_unknown_id; |
6782206b | 1018 | return 0; |
9e69c210 | 1019 | } |
0c095715 | 1020 | if (machine == NULL) { |
313e53b0 | 1021 | ++evlist->stats.nr_unprocessable_samples; |
6782206b | 1022 | return 0; |
0c095715 | 1023 | } |
313e53b0 | 1024 | return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine); |
cbf41645 | 1025 | case PERF_RECORD_MMAP: |
45694aa7 | 1026 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
1027 | case PERF_RECORD_MMAP2: |
1028 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 1029 | case PERF_RECORD_COMM: |
45694aa7 | 1030 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1031 | case PERF_RECORD_FORK: |
45694aa7 | 1032 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1033 | case PERF_RECORD_EXIT: |
45694aa7 | 1034 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1035 | case PERF_RECORD_LOST: |
45694aa7 | 1036 | if (tool->lost == perf_event__process_lost) |
313e53b0 | 1037 | evlist->stats.total_lost += event->lost.lost; |
45694aa7 | 1038 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1039 | case PERF_RECORD_READ: |
45694aa7 | 1040 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1041 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1042 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1043 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1044 | return tool->unthrottle(tool, event, sample, machine); |
4a96f7a0 AH |
1045 | case PERF_RECORD_AUX: |
1046 | return tool->aux(tool, event, sample, machine); | |
cbf41645 | 1047 | default: |
313e53b0 | 1048 | ++evlist->stats.nr_unknown_events; |
cbf41645 TG |
1049 | return -1; |
1050 | } | |
1051 | } | |
1052 | ||
c446870d AH |
1053 | static int perf_session__deliver_event(struct perf_session *session, |
1054 | union perf_event *event, | |
1055 | struct perf_sample *sample, | |
1056 | struct perf_tool *tool, | |
1057 | u64 file_offset) | |
1058 | { | |
1059 | int ret; | |
1060 | ||
1061 | ret = auxtrace__process_event(session, event, sample, tool); | |
1062 | if (ret < 0) | |
1063 | return ret; | |
1064 | if (ret > 0) | |
1065 | return 0; | |
1066 | ||
1067 | return machines__deliver_event(&session->machines, session->evlist, | |
1068 | event, sample, tool, file_offset); | |
1069 | } | |
1070 | ||
d5652d86 AH |
1071 | static s64 perf_session__process_user_event(struct perf_session *session, |
1072 | union perf_event *event, | |
d5652d86 | 1073 | u64 file_offset) |
06aae590 | 1074 | { |
d704ebda | 1075 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1076 | struct perf_tool *tool = session->tool; |
cc9784bd | 1077 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
1078 | int err; |
1079 | ||
9fa8727a | 1080 | dump_event(session->evlist, event, file_offset, NULL); |
06aae590 | 1081 | |
cbf41645 | 1082 | /* These events are processed right away */ |
06aae590 | 1083 | switch (event->header.type) { |
2c46dbb5 | 1084 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1085 | err = tool->attr(tool, event, &session->evlist); |
cfe1c414 | 1086 | if (err == 0) { |
7b56cce2 | 1087 | perf_session__set_id_hdr_size(session); |
cfe1c414 AH |
1088 | perf_session__set_comm_exec(session); |
1089 | } | |
10d0f086 | 1090 | return err; |
f67697bd JO |
1091 | case PERF_RECORD_HEADER_EVENT_TYPE: |
1092 | /* | |
1093 | * Depreceated, but we need to handle it for sake | |
1094 | * of old data files create in pipe mode. | |
1095 | */ | |
1096 | return 0; | |
9215545e TZ |
1097 | case PERF_RECORD_HEADER_TRACING_DATA: |
1098 | /* setup for reading amidst mmap */ | |
cc9784bd | 1099 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 1100 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1101 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1102 | return tool->build_id(tool, event, session); |
d6b17beb | 1103 | case PERF_RECORD_FINISHED_ROUND: |
d704ebda | 1104 | return tool->finished_round(tool, event, oe); |
3c659eed AH |
1105 | case PERF_RECORD_ID_INDEX: |
1106 | return tool->id_index(tool, event, session); | |
a16ac023 AH |
1107 | case PERF_RECORD_AUXTRACE_INFO: |
1108 | return tool->auxtrace_info(tool, event, session); | |
1109 | case PERF_RECORD_AUXTRACE: | |
1110 | /* setup for reading amidst mmap */ | |
1111 | lseek(fd, file_offset + event->header.size, SEEK_SET); | |
1112 | return tool->auxtrace(tool, event, session); | |
e9bf54d2 | 1113 | case PERF_RECORD_AUXTRACE_ERROR: |
85ed4729 | 1114 | perf_session__auxtrace_error_inc(session, event); |
e9bf54d2 | 1115 | return tool->auxtrace_error(tool, event, session); |
06aae590 | 1116 | default: |
ba74f064 | 1117 | return -EINVAL; |
06aae590 | 1118 | } |
ba74f064 TG |
1119 | } |
1120 | ||
a293829d AH |
1121 | int perf_session__deliver_synth_event(struct perf_session *session, |
1122 | union perf_event *event, | |
b7b61cbe | 1123 | struct perf_sample *sample) |
a293829d | 1124 | { |
fa713a4e | 1125 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1126 | struct perf_tool *tool = session->tool; |
fa713a4e ACM |
1127 | |
1128 | events_stats__inc(&evlist->stats, event->header.type); | |
a293829d AH |
1129 | |
1130 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1131 | return perf_session__process_user_event(session, event, 0); |
a293829d | 1132 | |
fa713a4e | 1133 | return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0); |
a293829d AH |
1134 | } |
1135 | ||
268fb20f JO |
1136 | static void event_swap(union perf_event *event, bool sample_id_all) |
1137 | { | |
1138 | perf_event__swap_op swap; | |
1139 | ||
1140 | swap = perf_event__swap_ops[event->header.type]; | |
1141 | if (swap) | |
1142 | swap(event, sample_id_all); | |
1143 | } | |
1144 | ||
5a52f33a AH |
1145 | int perf_session__peek_event(struct perf_session *session, off_t file_offset, |
1146 | void *buf, size_t buf_sz, | |
1147 | union perf_event **event_ptr, | |
1148 | struct perf_sample *sample) | |
1149 | { | |
1150 | union perf_event *event; | |
1151 | size_t hdr_sz, rest; | |
1152 | int fd; | |
1153 | ||
1154 | if (session->one_mmap && !session->header.needs_swap) { | |
1155 | event = file_offset - session->one_mmap_offset + | |
1156 | session->one_mmap_addr; | |
1157 | goto out_parse_sample; | |
1158 | } | |
1159 | ||
1160 | if (perf_data_file__is_pipe(session->file)) | |
1161 | return -1; | |
1162 | ||
1163 | fd = perf_data_file__fd(session->file); | |
1164 | hdr_sz = sizeof(struct perf_event_header); | |
1165 | ||
1166 | if (buf_sz < hdr_sz) | |
1167 | return -1; | |
1168 | ||
1169 | if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 || | |
1170 | readn(fd, &buf, hdr_sz) != (ssize_t)hdr_sz) | |
1171 | return -1; | |
1172 | ||
1173 | event = (union perf_event *)buf; | |
1174 | ||
1175 | if (session->header.needs_swap) | |
1176 | perf_event_header__bswap(&event->header); | |
1177 | ||
1178 | if (event->header.size < hdr_sz) | |
1179 | return -1; | |
1180 | ||
1181 | rest = event->header.size - hdr_sz; | |
1182 | ||
1183 | if (readn(fd, &buf, rest) != (ssize_t)rest) | |
1184 | return -1; | |
1185 | ||
1186 | if (session->header.needs_swap) | |
1187 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); | |
1188 | ||
1189 | out_parse_sample: | |
1190 | ||
1191 | if (sample && event->header.type < PERF_RECORD_USER_TYPE_START && | |
1192 | perf_evlist__parse_sample(session->evlist, event, sample)) | |
1193 | return -1; | |
1194 | ||
1195 | *event_ptr = event; | |
1196 | ||
1197 | return 0; | |
1198 | } | |
1199 | ||
d5652d86 | 1200 | static s64 perf_session__process_event(struct perf_session *session, |
b7b61cbe | 1201 | union perf_event *event, u64 file_offset) |
ba74f064 | 1202 | { |
313e53b0 | 1203 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1204 | struct perf_tool *tool = session->tool; |
8d50e5b4 | 1205 | struct perf_sample sample; |
ba74f064 TG |
1206 | int ret; |
1207 | ||
268fb20f | 1208 | if (session->header.needs_swap) |
313e53b0 | 1209 | event_swap(event, perf_evlist__sample_id_all(evlist)); |
ba74f064 TG |
1210 | |
1211 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1212 | return -EINVAL; | |
1213 | ||
313e53b0 | 1214 | events_stats__inc(&evlist->stats, event->header.type); |
ba74f064 TG |
1215 | |
1216 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1217 | return perf_session__process_user_event(session, event, file_offset); |
cbf41645 | 1218 | |
3dfc2c0a TG |
1219 | /* |
1220 | * For all kernel events we get the sample data | |
1221 | */ | |
313e53b0 | 1222 | ret = perf_evlist__parse_sample(evlist, event, &sample); |
5538beca FW |
1223 | if (ret) |
1224 | return ret; | |
3dfc2c0a | 1225 | |
0a8cb85c | 1226 | if (tool->ordered_events) { |
b7b61cbe | 1227 | ret = perf_session__queue_event(session, event, &sample, file_offset); |
cbf41645 TG |
1228 | if (ret != -ETIME) |
1229 | return ret; | |
1230 | } | |
1231 | ||
c446870d AH |
1232 | return perf_session__deliver_event(session, event, &sample, tool, |
1233 | file_offset); | |
06aae590 ACM |
1234 | } |
1235 | ||
316c7136 | 1236 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1237 | { |
316c7136 ACM |
1238 | hdr->type = bswap_32(hdr->type); |
1239 | hdr->misc = bswap_16(hdr->misc); | |
1240 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1241 | } |
1242 | ||
b424eba2 ACM |
1243 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1244 | { | |
1fcb8768 | 1245 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1246 | } |
1247 | ||
316c7136 | 1248 | static struct thread *perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1249 | { |
1fcb8768 | 1250 | struct thread *thread; |
06aae590 | 1251 | |
1fcb8768 | 1252 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1253 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 ACM |
1254 | pr_err("problem inserting idle task.\n"); |
1255 | thread = NULL; | |
1256 | } | |
1257 | ||
1258 | return thread; | |
1259 | } | |
1260 | ||
9870d780 | 1261 | static void perf_session__warn_about_errors(const struct perf_session *session) |
11095994 | 1262 | { |
9870d780 ACM |
1263 | const struct events_stats *stats = &session->evlist->stats; |
1264 | const struct ordered_events *oe = &session->ordered_events; | |
1265 | ||
1266 | if (session->tool->lost == perf_event__process_lost && | |
ccda068f | 1267 | stats->nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1268 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1269 | "Check IO/CPU overload!\n\n", | |
ccda068f ACM |
1270 | stats->nr_events[0], |
1271 | stats->nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1272 | } |
1273 | ||
ccda068f | 1274 | if (stats->nr_unknown_events != 0) { |
11095994 ACM |
1275 | ui__warning("Found %u unknown events!\n\n" |
1276 | "Is this an older tool processing a perf.data " | |
1277 | "file generated by a more recent tool?\n\n" | |
1278 | "If that is not the case, consider " | |
1279 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f | 1280 | stats->nr_unknown_events); |
11095994 ACM |
1281 | } |
1282 | ||
ccda068f | 1283 | if (stats->nr_unknown_id != 0) { |
9e69c210 | 1284 | ui__warning("%u samples with id not present in the header\n", |
ccda068f | 1285 | stats->nr_unknown_id); |
9e69c210 ACM |
1286 | } |
1287 | ||
ccda068f | 1288 | if (stats->nr_invalid_chains != 0) { |
75be989a ACM |
1289 | ui__warning("Found invalid callchains!\n\n" |
1290 | "%u out of %u events were discarded for this reason.\n\n" | |
1291 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f ACM |
1292 | stats->nr_invalid_chains, |
1293 | stats->nr_events[PERF_RECORD_SAMPLE]); | |
75be989a | 1294 | } |
0c095715 | 1295 | |
ccda068f | 1296 | if (stats->nr_unprocessable_samples != 0) { |
0c095715 JR |
1297 | ui__warning("%u unprocessable samples recorded.\n" |
1298 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
ccda068f | 1299 | stats->nr_unprocessable_samples); |
0c095715 | 1300 | } |
f61ff6c0 | 1301 | |
9870d780 ACM |
1302 | if (oe->nr_unordered_events != 0) |
1303 | ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events); | |
85ed4729 AH |
1304 | |
1305 | events_stats__auxtrace_error_warn(stats); | |
11095994 ACM |
1306 | } |
1307 | ||
8dc58101 TZ |
1308 | volatile int session_done; |
1309 | ||
b7b61cbe | 1310 | static int __perf_session__process_pipe_events(struct perf_session *session) |
8dc58101 | 1311 | { |
fa713a4e | 1312 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1313 | struct perf_tool *tool = session->tool; |
316c7136 | 1314 | int fd = perf_data_file__fd(session->file); |
444d2866 SE |
1315 | union perf_event *event; |
1316 | uint32_t size, cur_size = 0; | |
1317 | void *buf = NULL; | |
d5652d86 | 1318 | s64 skip = 0; |
8dc58101 | 1319 | u64 head; |
727ebd54 | 1320 | ssize_t err; |
8dc58101 TZ |
1321 | void *p; |
1322 | ||
45694aa7 | 1323 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1324 | |
1325 | head = 0; | |
444d2866 SE |
1326 | cur_size = sizeof(union perf_event); |
1327 | ||
1328 | buf = malloc(cur_size); | |
1329 | if (!buf) | |
1330 | return -errno; | |
8dc58101 | 1331 | more: |
444d2866 | 1332 | event = buf; |
cc9784bd | 1333 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1334 | if (err <= 0) { |
1335 | if (err == 0) | |
1336 | goto done; | |
1337 | ||
1338 | pr_err("failed to read event header\n"); | |
1339 | goto out_err; | |
1340 | } | |
1341 | ||
316c7136 | 1342 | if (session->header.needs_swap) |
444d2866 | 1343 | perf_event_header__bswap(&event->header); |
8dc58101 | 1344 | |
444d2866 | 1345 | size = event->header.size; |
27389d78 AH |
1346 | if (size < sizeof(struct perf_event_header)) { |
1347 | pr_err("bad event header size\n"); | |
1348 | goto out_err; | |
1349 | } | |
8dc58101 | 1350 | |
444d2866 SE |
1351 | if (size > cur_size) { |
1352 | void *new = realloc(buf, size); | |
1353 | if (!new) { | |
1354 | pr_err("failed to allocate memory to read event\n"); | |
1355 | goto out_err; | |
1356 | } | |
1357 | buf = new; | |
1358 | cur_size = size; | |
1359 | event = buf; | |
1360 | } | |
1361 | p = event; | |
8dc58101 TZ |
1362 | p += sizeof(struct perf_event_header); |
1363 | ||
794e43b5 | 1364 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1365 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1366 | if (err <= 0) { |
1367 | if (err == 0) { | |
1368 | pr_err("unexpected end of event stream\n"); | |
1369 | goto done; | |
1370 | } | |
8dc58101 | 1371 | |
794e43b5 TZ |
1372 | pr_err("failed to read event data\n"); |
1373 | goto out_err; | |
1374 | } | |
8dc58101 TZ |
1375 | } |
1376 | ||
b7b61cbe | 1377 | if ((skip = perf_session__process_event(session, event, head)) < 0) { |
9389a460 | 1378 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1379 | head, event->header.size, event->header.type); |
9389a460 JO |
1380 | err = -EINVAL; |
1381 | goto out_err; | |
8dc58101 TZ |
1382 | } |
1383 | ||
1384 | head += size; | |
1385 | ||
8dc58101 TZ |
1386 | if (skip > 0) |
1387 | head += skip; | |
1388 | ||
1389 | if (!session_done()) | |
1390 | goto more; | |
1391 | done: | |
8c16b649 | 1392 | /* do the final flush for ordered samples */ |
b7b61cbe | 1393 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
1394 | if (err) |
1395 | goto out_err; | |
1396 | err = auxtrace__flush_events(session, tool); | |
8dc58101 | 1397 | out_err: |
444d2866 | 1398 | free(buf); |
9870d780 | 1399 | perf_session__warn_about_errors(session); |
adc56ed1 | 1400 | ordered_events__free(&session->ordered_events); |
c446870d | 1401 | auxtrace__free_events(session); |
8dc58101 TZ |
1402 | return err; |
1403 | } | |
1404 | ||
998bedc8 FW |
1405 | static union perf_event * |
1406 | fetch_mmaped_event(struct perf_session *session, | |
1407 | u64 head, size_t mmap_size, char *buf) | |
1408 | { | |
1409 | union perf_event *event; | |
1410 | ||
1411 | /* | |
1412 | * Ensure we have enough space remaining to read | |
1413 | * the size of the event in the headers. | |
1414 | */ | |
1415 | if (head + sizeof(event->header) > mmap_size) | |
1416 | return NULL; | |
1417 | ||
1418 | event = (union perf_event *)(buf + head); | |
1419 | ||
1420 | if (session->header.needs_swap) | |
1421 | perf_event_header__bswap(&event->header); | |
1422 | ||
27389d78 AH |
1423 | if (head + event->header.size > mmap_size) { |
1424 | /* We're not fetching the event so swap back again */ | |
1425 | if (session->header.needs_swap) | |
1426 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1427 | return NULL; |
27389d78 | 1428 | } |
998bedc8 FW |
1429 | |
1430 | return event; | |
1431 | } | |
1432 | ||
35d48ddf DM |
1433 | /* |
1434 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1435 | * slices. On 32bit we use 32MB. | |
1436 | */ | |
1437 | #if BITS_PER_LONG == 64 | |
1438 | #define MMAP_SIZE ULLONG_MAX | |
1439 | #define NUM_MMAPS 1 | |
1440 | #else | |
1441 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1442 | #define NUM_MMAPS 128 | |
1443 | #endif | |
1444 | ||
4ac30cf7 NK |
1445 | static int __perf_session__process_events(struct perf_session *session, |
1446 | u64 data_offset, u64 data_size, | |
b7b61cbe | 1447 | u64 file_size) |
06aae590 | 1448 | { |
fa713a4e | 1449 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1450 | struct perf_tool *tool = session->tool; |
cc9784bd | 1451 | int fd = perf_data_file__fd(session->file); |
d5652d86 | 1452 | u64 head, page_offset, file_offset, file_pos, size; |
fe174207 | 1453 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1454 | size_t mmap_size; |
35d48ddf | 1455 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1456 | union perf_event *event; |
4d3001fd | 1457 | struct ui_progress prog; |
d5652d86 | 1458 | s64 skip; |
0331ee0c | 1459 | |
45694aa7 | 1460 | perf_tool__fill_defaults(tool); |
06aae590 | 1461 | |
0331ee0c TG |
1462 | page_offset = page_size * (data_offset / page_size); |
1463 | file_offset = page_offset; | |
1464 | head = data_offset - page_offset; | |
06aae590 | 1465 | |
b314e5cf | 1466 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1467 | file_size = data_offset + data_size; |
1468 | ||
4d3001fd | 1469 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1470 | |
35d48ddf | 1471 | mmap_size = MMAP_SIZE; |
919d86d3 | 1472 | if (mmap_size > file_size) { |
55b44629 | 1473 | mmap_size = file_size; |
919d86d3 AH |
1474 | session->one_mmap = true; |
1475 | } | |
55b44629 | 1476 | |
fe174207 TG |
1477 | memset(mmaps, 0, sizeof(mmaps)); |
1478 | ||
ba21594c ACM |
1479 | mmap_prot = PROT_READ; |
1480 | mmap_flags = MAP_SHARED; | |
1481 | ||
0331ee0c | 1482 | if (session->header.needs_swap) { |
ba21594c ACM |
1483 | mmap_prot |= PROT_WRITE; |
1484 | mmap_flags = MAP_PRIVATE; | |
1485 | } | |
06aae590 | 1486 | remap: |
cc9784bd | 1487 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1488 | file_offset); |
06aae590 ACM |
1489 | if (buf == MAP_FAILED) { |
1490 | pr_err("failed to mmap file\n"); | |
1491 | err = -errno; | |
1492 | goto out_err; | |
1493 | } | |
fe174207 TG |
1494 | mmaps[map_idx] = buf; |
1495 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1496 | file_pos = file_offset + head; |
919d86d3 AH |
1497 | if (session->one_mmap) { |
1498 | session->one_mmap_addr = buf; | |
1499 | session->one_mmap_offset = file_offset; | |
1500 | } | |
06aae590 ACM |
1501 | |
1502 | more: | |
998bedc8 FW |
1503 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1504 | if (!event) { | |
fe174207 TG |
1505 | if (mmaps[map_idx]) { |
1506 | munmap(mmaps[map_idx], mmap_size); | |
1507 | mmaps[map_idx] = NULL; | |
1508 | } | |
06aae590 | 1509 | |
0331ee0c TG |
1510 | page_offset = page_size * (head / page_size); |
1511 | file_offset += page_offset; | |
1512 | head -= page_offset; | |
06aae590 ACM |
1513 | goto remap; |
1514 | } | |
1515 | ||
1516 | size = event->header.size; | |
1517 | ||
27389d78 | 1518 | if (size < sizeof(struct perf_event_header) || |
b7b61cbe | 1519 | (skip = perf_session__process_event(session, event, file_pos)) < 0) { |
9389a460 JO |
1520 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1521 | file_offset + head, event->header.size, | |
1522 | event->header.type); | |
1523 | err = -EINVAL; | |
1524 | goto out_err; | |
06aae590 ACM |
1525 | } |
1526 | ||
6f917c70 AH |
1527 | if (skip) |
1528 | size += skip; | |
1529 | ||
06aae590 | 1530 | head += size; |
d6513281 | 1531 | file_pos += size; |
06aae590 | 1532 | |
4d3001fd | 1533 | ui_progress__update(&prog, size); |
55b44629 | 1534 | |
33e940a2 | 1535 | if (session_done()) |
8c16b649 | 1536 | goto out; |
33e940a2 | 1537 | |
d6513281 | 1538 | if (file_pos < file_size) |
06aae590 | 1539 | goto more; |
d6513281 | 1540 | |
8c16b649 | 1541 | out: |
c61e52ee | 1542 | /* do the final flush for ordered samples */ |
b7b61cbe | 1543 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
1544 | if (err) |
1545 | goto out_err; | |
1546 | err = auxtrace__flush_events(session, tool); | |
06aae590 | 1547 | out_err: |
a5580f3e | 1548 | ui_progress__finish(); |
9870d780 | 1549 | perf_session__warn_about_errors(session); |
adc56ed1 | 1550 | ordered_events__free(&session->ordered_events); |
c446870d | 1551 | auxtrace__free_events(session); |
919d86d3 | 1552 | session->one_mmap = false; |
06aae590 ACM |
1553 | return err; |
1554 | } | |
27295592 | 1555 | |
b7b61cbe | 1556 | int perf_session__process_events(struct perf_session *session) |
6122e4e4 | 1557 | { |
316c7136 | 1558 | u64 size = perf_data_file__size(session->file); |
6122e4e4 ACM |
1559 | int err; |
1560 | ||
316c7136 | 1561 | if (perf_session__register_idle_thread(session) == NULL) |
6122e4e4 ACM |
1562 | return -ENOMEM; |
1563 | ||
316c7136 ACM |
1564 | if (!perf_data_file__is_pipe(session->file)) |
1565 | err = __perf_session__process_events(session, | |
1566 | session->header.data_offset, | |
b7b61cbe | 1567 | session->header.data_size, size); |
8dc58101 | 1568 | else |
b7b61cbe | 1569 | err = __perf_session__process_pipe_events(session); |
88ca895d | 1570 | |
6122e4e4 ACM |
1571 | return err; |
1572 | } | |
1573 | ||
7f3be652 | 1574 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1575 | { |
93ea01c2 DA |
1576 | struct perf_evsel *evsel; |
1577 | ||
0050f7aa | 1578 | evlist__for_each(session->evlist, evsel) { |
93ea01c2 DA |
1579 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) |
1580 | return true; | |
27295592 ACM |
1581 | } |
1582 | ||
93ea01c2 DA |
1583 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1584 | return false; | |
27295592 | 1585 | } |
56b03f3c | 1586 | |
743eb868 ACM |
1587 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1588 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1589 | { |
1590 | char *bracket; | |
9de89fe7 | 1591 | enum map_type i; |
a1645ce1 ZY |
1592 | struct ref_reloc_sym *ref; |
1593 | ||
1594 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1595 | if (ref == NULL) | |
1596 | return -ENOMEM; | |
56b03f3c | 1597 | |
a1645ce1 ZY |
1598 | ref->name = strdup(symbol_name); |
1599 | if (ref->name == NULL) { | |
1600 | free(ref); | |
56b03f3c | 1601 | return -ENOMEM; |
a1645ce1 | 1602 | } |
56b03f3c | 1603 | |
a1645ce1 | 1604 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1605 | if (bracket) |
1606 | *bracket = '\0'; | |
1607 | ||
a1645ce1 | 1608 | ref->addr = addr; |
9de89fe7 ACM |
1609 | |
1610 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 | 1611 | struct kmap *kmap = map__kmap(maps[i]); |
ba92732e WN |
1612 | |
1613 | if (!kmap) | |
1614 | continue; | |
a1645ce1 | 1615 | kmap->ref_reloc_sym = ref; |
9de89fe7 ACM |
1616 | } |
1617 | ||
56b03f3c ACM |
1618 | return 0; |
1619 | } | |
1f626bc3 | 1620 | |
316c7136 | 1621 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 1622 | { |
316c7136 | 1623 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 1624 | } |
f869097e | 1625 | |
316c7136 | 1626 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 1627 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1628 | { |
316c7136 | 1629 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 1630 | } |
e248de33 ACM |
1631 | |
1632 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1633 | { | |
c446870d AH |
1634 | size_t ret; |
1635 | const char *msg = ""; | |
1636 | ||
1637 | if (perf_header__has_feat(&session->header, HEADER_AUXTRACE)) | |
1638 | msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)"; | |
1639 | ||
1640 | ret = fprintf(fp, "Aggregated stats:%s\n", msg); | |
e248de33 | 1641 | |
75be989a | 1642 | ret += events_stats__fprintf(&session->evlist->stats, fp); |
e248de33 ACM |
1643 | return ret; |
1644 | } | |
c0230b2b | 1645 | |
b424eba2 ACM |
1646 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1647 | { | |
1648 | /* | |
1649 | * FIXME: Here we have to actually print all the machines in this | |
1650 | * session, not just the host... | |
1651 | */ | |
876650e6 | 1652 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1653 | } |
1654 | ||
9cbdb702 DA |
1655 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1656 | unsigned int type) | |
1657 | { | |
1658 | struct perf_evsel *pos; | |
1659 | ||
0050f7aa | 1660 | evlist__for_each(session->evlist, pos) { |
9cbdb702 DA |
1661 | if (pos->attr.type == type) |
1662 | return pos; | |
1663 | } | |
1664 | return NULL; | |
1665 | } | |
1666 | ||
a2cb3cf2 | 1667 | void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, |
cc22e575 | 1668 | struct addr_location *al, |
307cbb92 | 1669 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b | 1670 | { |
c0230b2b | 1671 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1672 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1673 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1674 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1675 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 | 1676 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
cc8fae1d | 1677 | int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; |
b0b35f01 | 1678 | char s = print_oneline ? ' ' : '\t'; |
c0230b2b | 1679 | |
c0230b2b | 1680 | if (symbol_conf.use_callchain && sample->callchain) { |
a2cb3cf2 | 1681 | struct addr_location node_al; |
c0230b2b | 1682 | |
cc8b7c2b ACM |
1683 | if (thread__resolve_callchain(al->thread, evsel, |
1684 | sample, NULL, NULL, | |
1685 | PERF_MAX_STACK_DEPTH) != 0) { | |
c0230b2b DA |
1686 | if (verbose) |
1687 | error("Failed to resolve callchain. Skipping\n"); | |
1688 | return; | |
1689 | } | |
47260645 | 1690 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1691 | |
a2cb3cf2 AH |
1692 | if (print_symoffset) |
1693 | node_al = *al; | |
1694 | ||
307cbb92 | 1695 | while (stack_depth) { |
a4eb24a4 AH |
1696 | u64 addr = 0; |
1697 | ||
47260645 | 1698 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1699 | if (!node) |
1700 | break; | |
1701 | ||
d2ff1b14 DA |
1702 | if (node->sym && node->sym->ignore) |
1703 | goto next; | |
1704 | ||
a6ffaf91 | 1705 | if (print_ip) |
b0b35f01 | 1706 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1707 | |
a4eb24a4 AH |
1708 | if (node->map) |
1709 | addr = node->map->map_ip(node->map, node->ip); | |
1710 | ||
787bef17 | 1711 | if (print_sym) { |
547a92e0 | 1712 | printf(" "); |
251f426f | 1713 | if (print_symoffset) { |
a4eb24a4 | 1714 | node_al.addr = addr; |
a2cb3cf2 AH |
1715 | node_al.map = node->map; |
1716 | symbol__fprintf_symname_offs(node->sym, &node_al, stdout); | |
251f426f DA |
1717 | } else |
1718 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1719 | } |
251f426f | 1720 | |
610723f2 | 1721 | if (print_dso) { |
547a92e0 | 1722 | printf(" ("); |
52deff71 | 1723 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1724 | printf(")"); |
787bef17 | 1725 | } |
b0b35f01 | 1726 | |
cc8fae1d AH |
1727 | if (print_srcline) |
1728 | map__fprintf_srcline(node->map, addr, "\n ", | |
1729 | stdout); | |
1730 | ||
b0b35f01 DA |
1731 | if (!print_oneline) |
1732 | printf("\n"); | |
c0230b2b | 1733 | |
307cbb92 | 1734 | stack_depth--; |
d2ff1b14 DA |
1735 | next: |
1736 | callchain_cursor_advance(&callchain_cursor); | |
c0230b2b DA |
1737 | } |
1738 | ||
1739 | } else { | |
a2cb3cf2 | 1740 | if (al->sym && al->sym->ignore) |
d2ff1b14 DA |
1741 | return; |
1742 | ||
a6ffaf91 DA |
1743 | if (print_ip) |
1744 | printf("%16" PRIx64, sample->ip); | |
1745 | ||
787bef17 | 1746 | if (print_sym) { |
547a92e0 | 1747 | printf(" "); |
a978f2ab | 1748 | if (print_symoffset) |
a2cb3cf2 | 1749 | symbol__fprintf_symname_offs(al->sym, al, |
a978f2ab AN |
1750 | stdout); |
1751 | else | |
a2cb3cf2 | 1752 | symbol__fprintf_symname(al->sym, stdout); |
610723f2 DA |
1753 | } |
1754 | ||
1755 | if (print_dso) { | |
547a92e0 | 1756 | printf(" ("); |
a2cb3cf2 | 1757 | map__fprintf_dsoname(al->map, stdout); |
547a92e0 | 1758 | printf(")"); |
787bef17 | 1759 | } |
cc8fae1d AH |
1760 | |
1761 | if (print_srcline) | |
1762 | map__fprintf_srcline(al->map, al->addr, "\n ", stdout); | |
c0230b2b DA |
1763 | } |
1764 | } | |
5d67be97 AB |
1765 | |
1766 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1767 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1768 | { | |
8bac41cb | 1769 | int i, err = -1; |
5d67be97 AB |
1770 | struct cpu_map *map; |
1771 | ||
1772 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1773 | struct perf_evsel *evsel; | |
1774 | ||
1775 | evsel = perf_session__find_first_evtype(session, i); | |
1776 | if (!evsel) | |
1777 | continue; | |
1778 | ||
1779 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1780 | pr_err("File does not contain CPU events. " | |
1781 | "Remove -c option to proceed.\n"); | |
1782 | return -1; | |
1783 | } | |
1784 | } | |
1785 | ||
1786 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1787 | if (map == NULL) { |
1788 | pr_err("Invalid cpu_list\n"); | |
1789 | return -1; | |
1790 | } | |
5d67be97 AB |
1791 | |
1792 | for (i = 0; i < map->nr; i++) { | |
1793 | int cpu = map->map[i]; | |
1794 | ||
1795 | if (cpu >= MAX_NR_CPUS) { | |
1796 | pr_err("Requested CPU %d too large. " | |
1797 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 1798 | goto out_delete_map; |
5d67be97 AB |
1799 | } |
1800 | ||
1801 | set_bit(cpu, cpu_bitmap); | |
1802 | } | |
1803 | ||
8bac41cb SF |
1804 | err = 0; |
1805 | ||
1806 | out_delete_map: | |
1807 | cpu_map__delete(map); | |
1808 | return err; | |
5d67be97 | 1809 | } |
fbe96f29 SE |
1810 | |
1811 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1812 | bool full) | |
1813 | { | |
1814 | struct stat st; | |
c5765ece | 1815 | int fd, ret; |
fbe96f29 SE |
1816 | |
1817 | if (session == NULL || fp == NULL) | |
1818 | return; | |
1819 | ||
c5765ece MI |
1820 | fd = perf_data_file__fd(session->file); |
1821 | ||
cc9784bd | 1822 | ret = fstat(fd, &st); |
fbe96f29 SE |
1823 | if (ret == -1) |
1824 | return; | |
1825 | ||
1826 | fprintf(fp, "# ========\n"); | |
1827 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1828 | perf_header__fprintf_info(session, fp, full); | |
1829 | fprintf(fp, "# ========\n#\n"); | |
1830 | } | |
da378962 ACM |
1831 | |
1832 | ||
1833 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1834 | const struct perf_evsel_str_handler *assocs, | |
1835 | size_t nr_assocs) | |
1836 | { | |
da378962 | 1837 | struct perf_evsel *evsel; |
da378962 ACM |
1838 | size_t i; |
1839 | int err; | |
1840 | ||
1841 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1842 | /* |
1843 | * Adding a handler for an event not in the session, | |
1844 | * just ignore it. | |
1845 | */ | |
1846 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1847 | if (evsel == NULL) |
ccf53eac | 1848 | continue; |
da378962 ACM |
1849 | |
1850 | err = -EEXIST; | |
744a9719 | 1851 | if (evsel->handler != NULL) |
ccf53eac | 1852 | goto out; |
744a9719 | 1853 | evsel->handler = assocs[i].handler; |
da378962 ACM |
1854 | } |
1855 | ||
1856 | err = 0; | |
1857 | out: | |
1858 | return err; | |
da378962 | 1859 | } |
3c659eed AH |
1860 | |
1861 | int perf_event__process_id_index(struct perf_tool *tool __maybe_unused, | |
1862 | union perf_event *event, | |
1863 | struct perf_session *session) | |
1864 | { | |
1865 | struct perf_evlist *evlist = session->evlist; | |
1866 | struct id_index_event *ie = &event->id_index; | |
1867 | size_t i, nr, max_nr; | |
1868 | ||
1869 | max_nr = (ie->header.size - sizeof(struct id_index_event)) / | |
1870 | sizeof(struct id_index_entry); | |
1871 | nr = ie->nr; | |
1872 | if (nr > max_nr) | |
1873 | return -EINVAL; | |
1874 | ||
1875 | if (dump_trace) | |
1876 | fprintf(stdout, " nr: %zu\n", nr); | |
1877 | ||
1878 | for (i = 0; i < nr; i++) { | |
1879 | struct id_index_entry *e = &ie->entries[i]; | |
1880 | struct perf_sample_id *sid; | |
1881 | ||
1882 | if (dump_trace) { | |
1883 | fprintf(stdout, " ... id: %"PRIu64, e->id); | |
1884 | fprintf(stdout, " idx: %"PRIu64, e->idx); | |
1885 | fprintf(stdout, " cpu: %"PRId64, e->cpu); | |
1886 | fprintf(stdout, " tid: %"PRId64"\n", e->tid); | |
1887 | } | |
1888 | ||
1889 | sid = perf_evlist__id2sid(evlist, e->id); | |
1890 | if (!sid) | |
1891 | return -ENOENT; | |
1892 | sid->idx = e->idx; | |
1893 | sid->cpu = e->cpu; | |
1894 | sid->tid = e->tid; | |
1895 | } | |
1896 | return 0; | |
1897 | } | |
1898 | ||
1899 | int perf_event__synthesize_id_index(struct perf_tool *tool, | |
1900 | perf_event__handler_t process, | |
1901 | struct perf_evlist *evlist, | |
1902 | struct machine *machine) | |
1903 | { | |
1904 | union perf_event *ev; | |
1905 | struct perf_evsel *evsel; | |
1906 | size_t nr = 0, i = 0, sz, max_nr, n; | |
1907 | int err; | |
1908 | ||
1909 | pr_debug2("Synthesizing id index\n"); | |
1910 | ||
1911 | max_nr = (UINT16_MAX - sizeof(struct id_index_event)) / | |
1912 | sizeof(struct id_index_entry); | |
1913 | ||
cba9b847 | 1914 | evlist__for_each(evlist, evsel) |
3c659eed AH |
1915 | nr += evsel->ids; |
1916 | ||
1917 | n = nr > max_nr ? max_nr : nr; | |
1918 | sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry); | |
1919 | ev = zalloc(sz); | |
1920 | if (!ev) | |
1921 | return -ENOMEM; | |
1922 | ||
1923 | ev->id_index.header.type = PERF_RECORD_ID_INDEX; | |
1924 | ev->id_index.header.size = sz; | |
1925 | ev->id_index.nr = n; | |
1926 | ||
cba9b847 | 1927 | evlist__for_each(evlist, evsel) { |
3c659eed AH |
1928 | u32 j; |
1929 | ||
1930 | for (j = 0; j < evsel->ids; j++) { | |
1931 | struct id_index_entry *e; | |
1932 | struct perf_sample_id *sid; | |
1933 | ||
1934 | if (i >= n) { | |
1935 | err = process(tool, ev, NULL, machine); | |
1936 | if (err) | |
1937 | goto out_err; | |
1938 | nr -= n; | |
1939 | i = 0; | |
1940 | } | |
1941 | ||
1942 | e = &ev->id_index.entries[i++]; | |
1943 | ||
1944 | e->id = evsel->id[j]; | |
1945 | ||
1946 | sid = perf_evlist__id2sid(evlist, e->id); | |
1947 | if (!sid) { | |
1948 | free(ev); | |
1949 | return -ENOENT; | |
1950 | } | |
1951 | ||
1952 | e->idx = sid->idx; | |
1953 | e->cpu = sid->cpu; | |
1954 | e->tid = sid->tid; | |
1955 | } | |
1956 | } | |
1957 | ||
1958 | sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry); | |
1959 | ev->id_index.header.size = sz; | |
1960 | ev->id_index.nr = nr; | |
1961 | ||
1962 | err = process(tool, ev, NULL, machine); | |
1963 | out_err: | |
1964 | free(ev); | |
1965 | ||
1966 | return err; | |
1967 | } |