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" |
94c744b6 | 18 | |
d10eb1eb ACM |
19 | static int machines__deliver_event(struct machines *machines, |
20 | struct perf_evlist *evlist, | |
21 | union perf_event *event, | |
22 | struct perf_sample *sample, | |
23 | struct perf_tool *tool, u64 file_offset); | |
24 | ||
316c7136 | 25 | static int perf_session__open(struct perf_session *session) |
94c744b6 | 26 | { |
316c7136 | 27 | struct perf_data_file *file = session->file; |
8dc58101 | 28 | |
316c7136 | 29 | if (perf_session__read_header(session) < 0) { |
69996df4 | 30 | pr_err("incompatible file format (rerun with -v to learn more)"); |
6a4d98d7 | 31 | return -1; |
94c744b6 ACM |
32 | } |
33 | ||
cc9784bd JO |
34 | if (perf_data_file__is_pipe(file)) |
35 | return 0; | |
36 | ||
316c7136 | 37 | if (!perf_evlist__valid_sample_type(session->evlist)) { |
c2a70653 | 38 | pr_err("non matching sample_type"); |
6a4d98d7 | 39 | return -1; |
c2a70653 ACM |
40 | } |
41 | ||
316c7136 | 42 | if (!perf_evlist__valid_sample_id_all(session->evlist)) { |
c2a70653 | 43 | pr_err("non matching sample_id_all"); |
6a4d98d7 | 44 | return -1; |
c2a70653 ACM |
45 | } |
46 | ||
316c7136 | 47 | if (!perf_evlist__valid_read_format(session->evlist)) { |
9ede473c | 48 | pr_err("non matching read_format"); |
6a4d98d7 | 49 | return -1; |
9ede473c JO |
50 | } |
51 | ||
94c744b6 | 52 | return 0; |
94c744b6 ACM |
53 | } |
54 | ||
7b56cce2 | 55 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 56 | { |
7b56cce2 ACM |
57 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
58 | ||
7b56cce2 | 59 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
60 | } |
61 | ||
316c7136 | 62 | int perf_session__create_kernel_maps(struct perf_session *session) |
a1645ce1 | 63 | { |
316c7136 | 64 | int ret = machine__create_kernel_maps(&session->machines.host); |
a1645ce1 | 65 | |
a1645ce1 | 66 | if (ret >= 0) |
316c7136 | 67 | ret = machines__create_guest_kernel_maps(&session->machines); |
a1645ce1 ZY |
68 | return ret; |
69 | } | |
70 | ||
316c7136 | 71 | static void perf_session__destroy_kernel_maps(struct perf_session *session) |
076c6e45 | 72 | { |
316c7136 | 73 | machines__destroy_kernel_maps(&session->machines); |
076c6e45 ACM |
74 | } |
75 | ||
cfe1c414 AH |
76 | static bool perf_session__has_comm_exec(struct perf_session *session) |
77 | { | |
78 | struct perf_evsel *evsel; | |
79 | ||
80 | evlist__for_each(session->evlist, evsel) { | |
81 | if (evsel->attr.comm_exec) | |
82 | return true; | |
83 | } | |
84 | ||
85 | return false; | |
86 | } | |
87 | ||
88 | static void perf_session__set_comm_exec(struct perf_session *session) | |
89 | { | |
90 | bool comm_exec = perf_session__has_comm_exec(session); | |
91 | ||
92 | machines__set_comm_exec(&session->machines, comm_exec); | |
93 | } | |
94 | ||
d10eb1eb | 95 | static int ordered_events__deliver_event(struct ordered_events *oe, |
9870d780 | 96 | struct ordered_event *event) |
d10eb1eb | 97 | { |
9870d780 ACM |
98 | struct perf_sample sample; |
99 | struct perf_session *session = container_of(oe, struct perf_session, | |
100 | ordered_events); | |
101 | int ret = perf_evlist__parse_sample(session->evlist, event->event, &sample); | |
102 | ||
103 | if (ret) { | |
104 | pr_err("Can't parse sample, err = %d\n", ret); | |
105 | return ret; | |
106 | } | |
107 | ||
108 | return machines__deliver_event(&session->machines, session->evlist, event->event, | |
109 | &sample, session->tool, event->file_offset); | |
d10eb1eb ACM |
110 | } |
111 | ||
f5fc1412 JO |
112 | struct perf_session *perf_session__new(struct perf_data_file *file, |
113 | bool repipe, struct perf_tool *tool) | |
94c744b6 | 114 | { |
316c7136 | 115 | struct perf_session *session = zalloc(sizeof(*session)); |
efad1415 | 116 | |
316c7136 | 117 | if (!session) |
94c744b6 ACM |
118 | goto out; |
119 | ||
316c7136 | 120 | session->repipe = repipe; |
9870d780 | 121 | session->tool = tool; |
316c7136 | 122 | machines__init(&session->machines); |
9870d780 | 123 | ordered_events__init(&session->ordered_events, ordered_events__deliver_event); |
94c744b6 | 124 | |
6a4d98d7 JO |
125 | if (file) { |
126 | if (perf_data_file__open(file)) | |
64abebf7 | 127 | goto out_delete; |
6a4d98d7 | 128 | |
316c7136 | 129 | session->file = file; |
6a4d98d7 JO |
130 | |
131 | if (perf_data_file__is_read(file)) { | |
316c7136 | 132 | if (perf_session__open(session) < 0) |
6a4d98d7 JO |
133 | goto out_close; |
134 | ||
316c7136 | 135 | perf_session__set_id_hdr_size(session); |
cfe1c414 | 136 | perf_session__set_comm_exec(session); |
6a4d98d7 JO |
137 | } |
138 | } | |
139 | ||
140 | if (!file || perf_data_file__is_write(file)) { | |
64abebf7 ACM |
141 | /* |
142 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 143 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 | 144 | */ |
316c7136 | 145 | if (perf_session__create_kernel_maps(session) < 0) |
a5c2a4c9 | 146 | pr_warning("Cannot read kernel map\n"); |
64abebf7 | 147 | } |
d549c769 | 148 | |
45694aa7 | 149 | if (tool && tool->ordering_requires_timestamps && |
0a8cb85c | 150 | tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { |
21ef97f0 | 151 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
0a8cb85c | 152 | tool->ordered_events = false; |
d10eb1eb | 153 | } |
21ef97f0 | 154 | |
316c7136 | 155 | return session; |
6a4d98d7 JO |
156 | |
157 | out_close: | |
158 | perf_data_file__close(file); | |
159 | out_delete: | |
316c7136 | 160 | perf_session__delete(session); |
6a4d98d7 | 161 | out: |
4aa65636 | 162 | return NULL; |
94c744b6 ACM |
163 | } |
164 | ||
b424eba2 ACM |
165 | static void perf_session__delete_threads(struct perf_session *session) |
166 | { | |
876650e6 | 167 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
168 | } |
169 | ||
03cd2094 NK |
170 | static void perf_session_env__delete(struct perf_session_env *env) |
171 | { | |
74cf249d ACM |
172 | zfree(&env->hostname); |
173 | zfree(&env->os_release); | |
174 | zfree(&env->version); | |
175 | zfree(&env->arch); | |
176 | zfree(&env->cpu_desc); | |
177 | zfree(&env->cpuid); | |
178 | ||
179 | zfree(&env->cmdline); | |
180 | zfree(&env->sibling_cores); | |
181 | zfree(&env->sibling_threads); | |
182 | zfree(&env->numa_nodes); | |
183 | zfree(&env->pmu_mappings); | |
03cd2094 NK |
184 | } |
185 | ||
316c7136 | 186 | void perf_session__delete(struct perf_session *session) |
94c744b6 | 187 | { |
316c7136 | 188 | perf_session__destroy_kernel_maps(session); |
316c7136 ACM |
189 | perf_session__delete_threads(session); |
190 | perf_session_env__delete(&session->header.env); | |
191 | machines__exit(&session->machines); | |
192 | if (session->file) | |
193 | perf_data_file__close(session->file); | |
194 | free(session); | |
94c744b6 | 195 | } |
a328626b | 196 | |
47c3d109 AH |
197 | static int process_event_synth_tracing_data_stub(struct perf_tool *tool |
198 | __maybe_unused, | |
199 | union perf_event *event | |
1d037ca1 IT |
200 | __maybe_unused, |
201 | struct perf_session *session | |
202 | __maybe_unused) | |
d20deb64 ACM |
203 | { |
204 | dump_printf(": unhandled!\n"); | |
205 | return 0; | |
206 | } | |
207 | ||
47c3d109 AH |
208 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
209 | union perf_event *event __maybe_unused, | |
1d037ca1 IT |
210 | struct perf_evlist **pevlist |
211 | __maybe_unused) | |
10d0f086 ACM |
212 | { |
213 | dump_printf(": unhandled!\n"); | |
214 | return 0; | |
215 | } | |
216 | ||
1d037ca1 IT |
217 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
218 | union perf_event *event __maybe_unused, | |
219 | struct perf_sample *sample __maybe_unused, | |
220 | struct perf_evsel *evsel __maybe_unused, | |
221 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
222 | { |
223 | dump_printf(": unhandled!\n"); | |
224 | return 0; | |
225 | } | |
226 | ||
1d037ca1 IT |
227 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
228 | union perf_event *event __maybe_unused, | |
229 | struct perf_sample *sample __maybe_unused, | |
230 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
231 | { |
232 | dump_printf(": unhandled!\n"); | |
233 | return 0; | |
234 | } | |
235 | ||
d704ebda ACM |
236 | static int process_build_id_stub(struct perf_tool *tool __maybe_unused, |
237 | union perf_event *event __maybe_unused, | |
238 | struct perf_session *session __maybe_unused) | |
239 | { | |
240 | dump_printf(": unhandled!\n"); | |
241 | return 0; | |
242 | } | |
243 | ||
1d037ca1 IT |
244 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
245 | union perf_event *event __maybe_unused, | |
d704ebda | 246 | struct ordered_events *oe __maybe_unused) |
743eb868 ACM |
247 | { |
248 | dump_printf(": unhandled!\n"); | |
249 | return 0; | |
250 | } | |
251 | ||
45694aa7 | 252 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 | 253 | union perf_event *event, |
d704ebda | 254 | struct ordered_events *oe); |
d6b17beb | 255 | |
3c659eed AH |
256 | static int process_id_index_stub(struct perf_tool *tool __maybe_unused, |
257 | union perf_event *event __maybe_unused, | |
258 | struct perf_session *perf_session | |
259 | __maybe_unused) | |
260 | { | |
261 | dump_printf(": unhandled!\n"); | |
262 | return 0; | |
263 | } | |
264 | ||
a16ac023 AH |
265 | static int process_event_auxtrace_info_stub(struct perf_tool *tool __maybe_unused, |
266 | union perf_event *event __maybe_unused, | |
267 | struct perf_session *session __maybe_unused) | |
268 | { | |
269 | dump_printf(": unhandled!\n"); | |
270 | return 0; | |
271 | } | |
272 | ||
273 | static int skipn(int fd, off_t n) | |
274 | { | |
275 | char buf[4096]; | |
276 | ssize_t ret; | |
277 | ||
278 | while (n > 0) { | |
279 | ret = read(fd, buf, min(n, (off_t)sizeof(buf))); | |
280 | if (ret <= 0) | |
281 | return ret; | |
282 | n -= ret; | |
283 | } | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
288 | static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused, | |
289 | union perf_event *event, | |
290 | struct perf_session *session | |
291 | __maybe_unused) | |
292 | { | |
293 | dump_printf(": unhandled!\n"); | |
294 | if (perf_data_file__is_pipe(session->file)) | |
295 | skipn(perf_data_file__fd(session->file), event->auxtrace.size); | |
296 | return event->auxtrace.size; | |
297 | } | |
298 | ||
e9bf54d2 AH |
299 | static |
300 | int process_event_auxtrace_error_stub(struct perf_tool *tool __maybe_unused, | |
301 | union perf_event *event __maybe_unused, | |
302 | struct perf_session *session __maybe_unused) | |
303 | { | |
304 | dump_printf(": unhandled!\n"); | |
305 | return 0; | |
306 | } | |
307 | ||
9c501402 | 308 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 309 | { |
45694aa7 ACM |
310 | if (tool->sample == NULL) |
311 | tool->sample = process_event_sample_stub; | |
312 | if (tool->mmap == NULL) | |
313 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
314 | if (tool->mmap2 == NULL) |
315 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
316 | if (tool->comm == NULL) |
317 | tool->comm = process_event_stub; | |
318 | if (tool->fork == NULL) | |
319 | tool->fork = process_event_stub; | |
320 | if (tool->exit == NULL) | |
321 | tool->exit = process_event_stub; | |
322 | if (tool->lost == NULL) | |
323 | tool->lost = perf_event__process_lost; | |
324 | if (tool->read == NULL) | |
325 | tool->read = process_event_sample_stub; | |
326 | if (tool->throttle == NULL) | |
327 | tool->throttle = process_event_stub; | |
328 | if (tool->unthrottle == NULL) | |
329 | tool->unthrottle = process_event_stub; | |
330 | if (tool->attr == NULL) | |
331 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
332 | if (tool->tracing_data == NULL) |
333 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
334 | if (tool->build_id == NULL) | |
d704ebda | 335 | tool->build_id = process_build_id_stub; |
45694aa7 | 336 | if (tool->finished_round == NULL) { |
0a8cb85c | 337 | if (tool->ordered_events) |
45694aa7 | 338 | tool->finished_round = process_finished_round; |
d6b17beb | 339 | else |
45694aa7 | 340 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 341 | } |
3c659eed AH |
342 | if (tool->id_index == NULL) |
343 | tool->id_index = process_id_index_stub; | |
a16ac023 AH |
344 | if (tool->auxtrace_info == NULL) |
345 | tool->auxtrace_info = process_event_auxtrace_info_stub; | |
346 | if (tool->auxtrace == NULL) | |
347 | tool->auxtrace = process_event_auxtrace_stub; | |
e9bf54d2 AH |
348 | if (tool->auxtrace_error == NULL) |
349 | tool->auxtrace_error = process_event_auxtrace_error_stub; | |
06aae590 | 350 | } |
48000a1a | 351 | |
268fb20f JO |
352 | static void swap_sample_id_all(union perf_event *event, void *data) |
353 | { | |
354 | void *end = (void *) event + event->header.size; | |
355 | int size = end - data; | |
356 | ||
357 | BUG_ON(size % sizeof(u64)); | |
358 | mem_bswap_64(data, size); | |
359 | } | |
360 | ||
361 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 362 | bool sample_id_all __maybe_unused) |
ba21594c | 363 | { |
8115d60c ACM |
364 | struct perf_event_header *hdr = &event->header; |
365 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
366 | } |
367 | ||
268fb20f | 368 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 369 | { |
8115d60c ACM |
370 | event->comm.pid = bswap_32(event->comm.pid); |
371 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
372 | |
373 | if (sample_id_all) { | |
374 | void *data = &event->comm.comm; | |
375 | ||
9ac3e487 | 376 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
377 | swap_sample_id_all(event, data); |
378 | } | |
ba21594c ACM |
379 | } |
380 | ||
268fb20f JO |
381 | static void perf_event__mmap_swap(union perf_event *event, |
382 | bool sample_id_all) | |
ba21594c | 383 | { |
8115d60c ACM |
384 | event->mmap.pid = bswap_32(event->mmap.pid); |
385 | event->mmap.tid = bswap_32(event->mmap.tid); | |
386 | event->mmap.start = bswap_64(event->mmap.start); | |
387 | event->mmap.len = bswap_64(event->mmap.len); | |
388 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
389 | |
390 | if (sample_id_all) { | |
391 | void *data = &event->mmap.filename; | |
392 | ||
9ac3e487 | 393 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
394 | swap_sample_id_all(event, data); |
395 | } | |
ba21594c ACM |
396 | } |
397 | ||
5c5e854b SE |
398 | static void perf_event__mmap2_swap(union perf_event *event, |
399 | bool sample_id_all) | |
400 | { | |
401 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
402 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
403 | event->mmap2.start = bswap_64(event->mmap2.start); | |
404 | event->mmap2.len = bswap_64(event->mmap2.len); | |
405 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
406 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
407 | event->mmap2.min = bswap_32(event->mmap2.min); | |
408 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
409 | ||
410 | if (sample_id_all) { | |
411 | void *data = &event->mmap2.filename; | |
412 | ||
413 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
414 | swap_sample_id_all(event, data); | |
415 | } | |
416 | } | |
268fb20f | 417 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 418 | { |
8115d60c ACM |
419 | event->fork.pid = bswap_32(event->fork.pid); |
420 | event->fork.tid = bswap_32(event->fork.tid); | |
421 | event->fork.ppid = bswap_32(event->fork.ppid); | |
422 | event->fork.ptid = bswap_32(event->fork.ptid); | |
423 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
424 | |
425 | if (sample_id_all) | |
426 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
427 | } |
428 | ||
268fb20f | 429 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 430 | { |
8115d60c ACM |
431 | event->read.pid = bswap_32(event->read.pid); |
432 | event->read.tid = bswap_32(event->read.tid); | |
433 | event->read.value = bswap_64(event->read.value); | |
434 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
435 | event->read.time_running = bswap_64(event->read.time_running); | |
436 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
437 | |
438 | if (sample_id_all) | |
439 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
440 | } |
441 | ||
dd96c46b JO |
442 | static void perf_event__throttle_swap(union perf_event *event, |
443 | bool sample_id_all) | |
444 | { | |
445 | event->throttle.time = bswap_64(event->throttle.time); | |
446 | event->throttle.id = bswap_64(event->throttle.id); | |
447 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
448 | ||
449 | if (sample_id_all) | |
450 | swap_sample_id_all(event, &event->throttle + 1); | |
451 | } | |
452 | ||
e108c66e JO |
453 | static u8 revbyte(u8 b) |
454 | { | |
455 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
456 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
457 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
458 | return (u8) rev; | |
459 | } | |
460 | ||
461 | /* | |
462 | * XXX this is hack in attempt to carry flags bitfield | |
463 | * throught endian village. ABI says: | |
464 | * | |
465 | * Bit-fields are allocated from right to left (least to most significant) | |
466 | * on little-endian implementations and from left to right (most to least | |
467 | * significant) on big-endian implementations. | |
468 | * | |
469 | * The above seems to be byte specific, so we need to reverse each | |
470 | * byte of the bitfield. 'Internet' also says this might be implementation | |
471 | * specific and we probably need proper fix and carry perf_event_attr | |
472 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
473 | * to work for now. | |
474 | */ | |
475 | static void swap_bitfield(u8 *p, unsigned len) | |
476 | { | |
477 | unsigned i; | |
478 | ||
479 | for (i = 0; i < len; i++) { | |
480 | *p = revbyte(*p); | |
481 | p++; | |
482 | } | |
483 | } | |
484 | ||
eda3913b DA |
485 | /* exported for swapping attributes in file header */ |
486 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
487 | { | |
488 | attr->type = bswap_32(attr->type); | |
489 | attr->size = bswap_32(attr->size); | |
490 | attr->config = bswap_64(attr->config); | |
491 | attr->sample_period = bswap_64(attr->sample_period); | |
492 | attr->sample_type = bswap_64(attr->sample_type); | |
493 | attr->read_format = bswap_64(attr->read_format); | |
494 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
495 | attr->bp_type = bswap_32(attr->bp_type); | |
496 | attr->bp_addr = bswap_64(attr->bp_addr); | |
497 | attr->bp_len = bswap_64(attr->bp_len); | |
7db59528 AH |
498 | attr->branch_sample_type = bswap_64(attr->branch_sample_type); |
499 | attr->sample_regs_user = bswap_64(attr->sample_regs_user); | |
500 | attr->sample_stack_user = bswap_32(attr->sample_stack_user); | |
e108c66e JO |
501 | |
502 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
503 | } |
504 | ||
268fb20f | 505 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 506 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
507 | { |
508 | size_t size; | |
509 | ||
eda3913b | 510 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 511 | |
8115d60c ACM |
512 | size = event->header.size; |
513 | size -= (void *)&event->attr.id - (void *)event; | |
514 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
515 | } |
516 | ||
268fb20f | 517 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 518 | bool sample_id_all __maybe_unused) |
cd19a035 | 519 | { |
8115d60c ACM |
520 | event->event_type.event_type.event_id = |
521 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
522 | } |
523 | ||
268fb20f | 524 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 525 | bool sample_id_all __maybe_unused) |
9215545e | 526 | { |
8115d60c | 527 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
528 | } |
529 | ||
a16ac023 AH |
530 | static void perf_event__auxtrace_info_swap(union perf_event *event, |
531 | bool sample_id_all __maybe_unused) | |
532 | { | |
533 | size_t size; | |
534 | ||
535 | event->auxtrace_info.type = bswap_32(event->auxtrace_info.type); | |
536 | ||
537 | size = event->header.size; | |
538 | size -= (void *)&event->auxtrace_info.priv - (void *)event; | |
539 | mem_bswap_64(event->auxtrace_info.priv, size); | |
540 | } | |
541 | ||
542 | static void perf_event__auxtrace_swap(union perf_event *event, | |
543 | bool sample_id_all __maybe_unused) | |
544 | { | |
545 | event->auxtrace.size = bswap_64(event->auxtrace.size); | |
546 | event->auxtrace.offset = bswap_64(event->auxtrace.offset); | |
547 | event->auxtrace.reference = bswap_64(event->auxtrace.reference); | |
548 | event->auxtrace.idx = bswap_32(event->auxtrace.idx); | |
549 | event->auxtrace.tid = bswap_32(event->auxtrace.tid); | |
550 | event->auxtrace.cpu = bswap_32(event->auxtrace.cpu); | |
551 | } | |
552 | ||
e9bf54d2 AH |
553 | static void perf_event__auxtrace_error_swap(union perf_event *event, |
554 | bool sample_id_all __maybe_unused) | |
555 | { | |
556 | event->auxtrace_error.type = bswap_32(event->auxtrace_error.type); | |
557 | event->auxtrace_error.code = bswap_32(event->auxtrace_error.code); | |
558 | event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu); | |
559 | event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid); | |
560 | event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid); | |
561 | event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip); | |
562 | } | |
563 | ||
268fb20f JO |
564 | typedef void (*perf_event__swap_op)(union perf_event *event, |
565 | bool sample_id_all); | |
ba21594c | 566 | |
8115d60c ACM |
567 | static perf_event__swap_op perf_event__swap_ops[] = { |
568 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 569 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
570 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
571 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
572 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
573 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
574 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
575 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
576 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 577 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
eda3913b | 578 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
579 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
580 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
581 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
3c659eed | 582 | [PERF_RECORD_ID_INDEX] = perf_event__all64_swap, |
a16ac023 AH |
583 | [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap, |
584 | [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap, | |
e9bf54d2 | 585 | [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap, |
8115d60c | 586 | [PERF_RECORD_HEADER_MAX] = NULL, |
ba21594c ACM |
587 | }; |
588 | ||
d6b17beb FW |
589 | /* |
590 | * When perf record finishes a pass on every buffers, it records this pseudo | |
591 | * event. | |
592 | * We record the max timestamp t found in the pass n. | |
593 | * Assuming these timestamps are monotonic across cpus, we know that if | |
594 | * a buffer still has events with timestamps below t, they will be all | |
595 | * available and then read in the pass n + 1. | |
596 | * Hence when we start to read the pass n + 2, we can safely flush every | |
597 | * events with timestamps below t. | |
598 | * | |
599 | * ============ PASS n ================= | |
600 | * CPU 0 | CPU 1 | |
601 | * | | |
602 | * cnt1 timestamps | cnt2 timestamps | |
603 | * 1 | 2 | |
604 | * 2 | 3 | |
605 | * - | 4 <--- max recorded | |
606 | * | |
607 | * ============ PASS n + 1 ============== | |
608 | * CPU 0 | CPU 1 | |
609 | * | | |
610 | * cnt1 timestamps | cnt2 timestamps | |
611 | * 3 | 5 | |
612 | * 4 | 6 | |
613 | * 5 | 7 <---- max recorded | |
614 | * | |
615 | * Flush every events below timestamp 4 | |
616 | * | |
617 | * ============ PASS n + 2 ============== | |
618 | * CPU 0 | CPU 1 | |
619 | * | | |
620 | * cnt1 timestamps | cnt2 timestamps | |
621 | * 6 | 8 | |
622 | * 7 | 9 | |
623 | * - | 10 | |
624 | * | |
625 | * Flush every events below timestamp 7 | |
626 | * etc... | |
627 | */ | |
b7b61cbe | 628 | static int process_finished_round(struct perf_tool *tool __maybe_unused, |
1d037ca1 | 629 | union perf_event *event __maybe_unused, |
d704ebda | 630 | struct ordered_events *oe) |
d6b17beb | 631 | { |
b7b61cbe | 632 | return ordered_events__flush(oe, OE_FLUSH__ROUND); |
d6b17beb FW |
633 | } |
634 | ||
b7b61cbe ACM |
635 | int perf_session__queue_event(struct perf_session *s, union perf_event *event, |
636 | struct perf_sample *sample, u64 file_offset) | |
c61e52ee | 637 | { |
4a6b362f | 638 | return ordered_events__queue(&s->ordered_events, event, sample, file_offset); |
640c03ce | 639 | } |
c61e52ee | 640 | |
384b6055 | 641 | static void callchain__lbr_callstack_printf(struct perf_sample *sample) |
640c03ce | 642 | { |
384b6055 KL |
643 | struct ip_callchain *callchain = sample->callchain; |
644 | struct branch_stack *lbr_stack = sample->branch_stack; | |
645 | u64 kernel_callchain_nr = callchain->nr; | |
640c03ce | 646 | unsigned int i; |
c61e52ee | 647 | |
384b6055 KL |
648 | for (i = 0; i < kernel_callchain_nr; i++) { |
649 | if (callchain->ips[i] == PERF_CONTEXT_USER) | |
650 | break; | |
651 | } | |
652 | ||
653 | if ((i != kernel_callchain_nr) && lbr_stack->nr) { | |
654 | u64 total_nr; | |
655 | /* | |
656 | * LBR callstack can only get user call chain, | |
657 | * i is kernel call chain number, | |
658 | * 1 is PERF_CONTEXT_USER. | |
659 | * | |
660 | * The user call chain is stored in LBR registers. | |
661 | * LBR are pair registers. The caller is stored | |
662 | * in "from" register, while the callee is stored | |
663 | * in "to" register. | |
664 | * For example, there is a call stack | |
665 | * "A"->"B"->"C"->"D". | |
666 | * The LBR registers will recorde like | |
667 | * "C"->"D", "B"->"C", "A"->"B". | |
668 | * So only the first "to" register and all "from" | |
669 | * registers are needed to construct the whole stack. | |
670 | */ | |
671 | total_nr = i + 1 + lbr_stack->nr + 1; | |
672 | kernel_callchain_nr = i + 1; | |
673 | ||
674 | printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr); | |
675 | ||
676 | for (i = 0; i < kernel_callchain_nr; i++) | |
677 | printf("..... %2d: %016" PRIx64 "\n", | |
678 | i, callchain->ips[i]); | |
679 | ||
680 | printf("..... %2d: %016" PRIx64 "\n", | |
681 | (int)(kernel_callchain_nr), lbr_stack->entries[0].to); | |
682 | for (i = 0; i < lbr_stack->nr; i++) | |
683 | printf("..... %2d: %016" PRIx64 "\n", | |
684 | (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from); | |
685 | } | |
686 | } | |
687 | ||
688 | static void callchain__printf(struct perf_evsel *evsel, | |
689 | struct perf_sample *sample) | |
690 | { | |
691 | unsigned int i; | |
692 | struct ip_callchain *callchain = sample->callchain; | |
693 | ||
694 | if (has_branch_callstack(evsel)) | |
695 | callchain__lbr_callstack_printf(sample); | |
696 | ||
697 | printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr); | |
640c03ce | 698 | |
384b6055 | 699 | for (i = 0; i < callchain->nr; i++) |
9486aa38 | 700 | printf("..... %2d: %016" PRIx64 "\n", |
384b6055 | 701 | i, callchain->ips[i]); |
c61e52ee FW |
702 | } |
703 | ||
b5387528 RAV |
704 | static void branch_stack__printf(struct perf_sample *sample) |
705 | { | |
706 | uint64_t i; | |
707 | ||
708 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
709 | ||
710 | for (i = 0; i < sample->branch_stack->nr; i++) | |
711 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
712 | i, sample->branch_stack->entries[i].from, | |
713 | sample->branch_stack->entries[i].to); | |
714 | } | |
715 | ||
0f6a3015 JO |
716 | static void regs_dump__printf(u64 mask, u64 *regs) |
717 | { | |
718 | unsigned rid, i = 0; | |
719 | ||
720 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
721 | u64 val = regs[i++]; | |
722 | ||
723 | printf(".... %-5s 0x%" PRIx64 "\n", | |
724 | perf_reg_name(rid), val); | |
725 | } | |
726 | } | |
727 | ||
6a21c0b5 SE |
728 | static const char *regs_abi[] = { |
729 | [PERF_SAMPLE_REGS_ABI_NONE] = "none", | |
730 | [PERF_SAMPLE_REGS_ABI_32] = "32-bit", | |
731 | [PERF_SAMPLE_REGS_ABI_64] = "64-bit", | |
732 | }; | |
733 | ||
734 | static inline const char *regs_dump_abi(struct regs_dump *d) | |
735 | { | |
736 | if (d->abi > PERF_SAMPLE_REGS_ABI_64) | |
737 | return "unknown"; | |
738 | ||
739 | return regs_abi[d->abi]; | |
740 | } | |
741 | ||
742 | static void regs__printf(const char *type, struct regs_dump *regs) | |
743 | { | |
744 | u64 mask = regs->mask; | |
745 | ||
746 | printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n", | |
747 | type, | |
748 | mask, | |
749 | regs_dump_abi(regs)); | |
750 | ||
751 | regs_dump__printf(mask, regs->regs); | |
752 | } | |
753 | ||
352ea45a | 754 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
755 | { |
756 | struct regs_dump *user_regs = &sample->user_regs; | |
757 | ||
6a21c0b5 SE |
758 | if (user_regs->regs) |
759 | regs__printf("user", user_regs); | |
760 | } | |
761 | ||
762 | static void regs_intr__printf(struct perf_sample *sample) | |
763 | { | |
764 | struct regs_dump *intr_regs = &sample->intr_regs; | |
765 | ||
766 | if (intr_regs->regs) | |
767 | regs__printf("intr", intr_regs); | |
0f6a3015 JO |
768 | } |
769 | ||
770 | static void stack_user__printf(struct stack_dump *dump) | |
771 | { | |
772 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
773 | dump->size, dump->offset); | |
774 | } | |
775 | ||
9fa8727a | 776 | static void perf_evlist__print_tstamp(struct perf_evlist *evlist, |
8115d60c | 777 | union perf_event *event, |
8d50e5b4 | 778 | struct perf_sample *sample) |
9c90a61c | 779 | { |
9fa8727a | 780 | u64 sample_type = __perf_evlist__combined_sample_type(evlist); |
7f3be652 | 781 | |
9c90a61c | 782 | if (event->header.type != PERF_RECORD_SAMPLE && |
9fa8727a | 783 | !perf_evlist__sample_id_all(evlist)) { |
9c90a61c ACM |
784 | fputs("-1 -1 ", stdout); |
785 | return; | |
786 | } | |
787 | ||
7f3be652 | 788 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
789 | printf("%u ", sample->cpu); |
790 | ||
7f3be652 | 791 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 792 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
793 | } |
794 | ||
9ede473c JO |
795 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
796 | { | |
797 | printf("... sample_read:\n"); | |
798 | ||
799 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
800 | printf("...... time enabled %016" PRIx64 "\n", | |
801 | sample->read.time_enabled); | |
802 | ||
803 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
804 | printf("...... time running %016" PRIx64 "\n", | |
805 | sample->read.time_running); | |
806 | ||
807 | if (read_format & PERF_FORMAT_GROUP) { | |
808 | u64 i; | |
809 | ||
810 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
811 | ||
812 | for (i = 0; i < sample->read.group.nr; i++) { | |
813 | struct sample_read_value *value; | |
814 | ||
815 | value = &sample->read.group.values[i]; | |
816 | printf("..... id %016" PRIx64 | |
817 | ", value %016" PRIx64 "\n", | |
818 | value->id, value->value); | |
819 | } | |
820 | } else | |
821 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
822 | sample->read.one.id, sample->read.one.value); | |
823 | } | |
824 | ||
9fa8727a | 825 | static void dump_event(struct perf_evlist *evlist, union perf_event *event, |
8d50e5b4 | 826 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
827 | { |
828 | if (!dump_trace) | |
829 | return; | |
830 | ||
9486aa38 ACM |
831 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
832 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
833 | |
834 | trace_event(event); | |
835 | ||
836 | if (sample) | |
9fa8727a | 837 | perf_evlist__print_tstamp(evlist, event, sample); |
9aefcab0 | 838 | |
9486aa38 | 839 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 840 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
841 | } |
842 | ||
0f6a3015 | 843 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 844 | struct perf_sample *sample) |
9aefcab0 | 845 | { |
7f3be652 ACM |
846 | u64 sample_type; |
847 | ||
ddbc24b7 ACM |
848 | if (!dump_trace) |
849 | return; | |
850 | ||
0ea590ae | 851 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 852 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 853 | sample->period, sample->addr); |
9aefcab0 | 854 | |
0f6a3015 | 855 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
856 | |
857 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
384b6055 | 858 | callchain__printf(evsel, sample); |
b5387528 | 859 | |
384b6055 | 860 | if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel)) |
b5387528 | 861 | branch_stack__printf(sample); |
0f6a3015 JO |
862 | |
863 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 864 | regs_user__printf(sample); |
0f6a3015 | 865 | |
6a21c0b5 SE |
866 | if (sample_type & PERF_SAMPLE_REGS_INTR) |
867 | regs_intr__printf(sample); | |
868 | ||
0f6a3015 JO |
869 | if (sample_type & PERF_SAMPLE_STACK_USER) |
870 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
871 | |
872 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
873 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
874 | |
875 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
876 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 877 | |
475eeab9 AK |
878 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
879 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
880 | ||
9ede473c JO |
881 | if (sample_type & PERF_SAMPLE_READ) |
882 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
883 | } |
884 | ||
54245fdc | 885 | static struct machine *machines__find_for_cpumode(struct machines *machines, |
ef89325f AH |
886 | union perf_event *event, |
887 | struct perf_sample *sample) | |
743eb868 ACM |
888 | { |
889 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
ad85ace0 | 890 | struct machine *machine; |
743eb868 | 891 | |
7c0f4a41 DA |
892 | if (perf_guest && |
893 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
894 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
895 | u32 pid; |
896 | ||
5c5e854b SE |
897 | if (event->header.type == PERF_RECORD_MMAP |
898 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
899 | pid = event->mmap.pid; |
900 | else | |
ef89325f | 901 | pid = sample->pid; |
7fb0a5ee | 902 | |
54245fdc | 903 | machine = machines__find(machines, pid); |
ad85ace0 | 904 | if (!machine) |
54245fdc | 905 | machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID); |
ad85ace0 | 906 | return machine; |
7fb0a5ee | 907 | } |
743eb868 | 908 | |
54245fdc | 909 | return &machines->host; |
743eb868 ACM |
910 | } |
911 | ||
313e53b0 | 912 | static int deliver_sample_value(struct perf_evlist *evlist, |
e4caec0d JO |
913 | struct perf_tool *tool, |
914 | union perf_event *event, | |
915 | struct perf_sample *sample, | |
916 | struct sample_read_value *v, | |
917 | struct machine *machine) | |
918 | { | |
313e53b0 | 919 | struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id); |
e4caec0d | 920 | |
e4caec0d JO |
921 | if (sid) { |
922 | sample->id = v->id; | |
923 | sample->period = v->value - sid->period; | |
924 | sid->period = v->value; | |
925 | } | |
926 | ||
927 | if (!sid || sid->evsel == NULL) { | |
313e53b0 | 928 | ++evlist->stats.nr_unknown_id; |
e4caec0d JO |
929 | return 0; |
930 | } | |
931 | ||
932 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
933 | } | |
934 | ||
313e53b0 | 935 | static int deliver_sample_group(struct perf_evlist *evlist, |
e4caec0d JO |
936 | struct perf_tool *tool, |
937 | union perf_event *event, | |
938 | struct perf_sample *sample, | |
939 | struct machine *machine) | |
940 | { | |
941 | int ret = -EINVAL; | |
942 | u64 i; | |
943 | ||
944 | for (i = 0; i < sample->read.group.nr; i++) { | |
313e53b0 | 945 | ret = deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
946 | &sample->read.group.values[i], |
947 | machine); | |
948 | if (ret) | |
949 | break; | |
950 | } | |
951 | ||
952 | return ret; | |
953 | } | |
954 | ||
955 | static int | |
313e53b0 | 956 | perf_evlist__deliver_sample(struct perf_evlist *evlist, |
e4caec0d JO |
957 | struct perf_tool *tool, |
958 | union perf_event *event, | |
959 | struct perf_sample *sample, | |
960 | struct perf_evsel *evsel, | |
961 | struct machine *machine) | |
962 | { | |
963 | /* We know evsel != NULL. */ | |
964 | u64 sample_type = evsel->attr.sample_type; | |
965 | u64 read_format = evsel->attr.read_format; | |
966 | ||
967 | /* Standard sample delievery. */ | |
968 | if (!(sample_type & PERF_SAMPLE_READ)) | |
969 | return tool->sample(tool, event, sample, evsel, machine); | |
970 | ||
971 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
972 | if (read_format & PERF_FORMAT_GROUP) | |
313e53b0 | 973 | return deliver_sample_group(evlist, tool, event, sample, |
e4caec0d JO |
974 | machine); |
975 | else | |
313e53b0 | 976 | return deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
977 | &sample->read.one, machine); |
978 | } | |
979 | ||
d10eb1eb ACM |
980 | static int machines__deliver_event(struct machines *machines, |
981 | struct perf_evlist *evlist, | |
982 | union perf_event *event, | |
983 | struct perf_sample *sample, | |
984 | struct perf_tool *tool, u64 file_offset) | |
cbf41645 | 985 | { |
9e69c210 | 986 | struct perf_evsel *evsel; |
743eb868 | 987 | struct machine *machine; |
9e69c210 | 988 | |
9fa8727a | 989 | dump_event(evlist, event, file_offset, sample); |
532e7269 | 990 | |
313e53b0 | 991 | evsel = perf_evlist__id2evsel(evlist, sample->id); |
7b27509f | 992 | |
fa713a4e | 993 | machine = machines__find_for_cpumode(machines, event, sample); |
743eb868 | 994 | |
cbf41645 TG |
995 | switch (event->header.type) { |
996 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 997 | dump_sample(evsel, event, sample); |
9e69c210 | 998 | if (evsel == NULL) { |
313e53b0 | 999 | ++evlist->stats.nr_unknown_id; |
6782206b | 1000 | return 0; |
9e69c210 | 1001 | } |
0c095715 | 1002 | if (machine == NULL) { |
313e53b0 | 1003 | ++evlist->stats.nr_unprocessable_samples; |
6782206b | 1004 | return 0; |
0c095715 | 1005 | } |
313e53b0 | 1006 | return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine); |
cbf41645 | 1007 | case PERF_RECORD_MMAP: |
45694aa7 | 1008 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
1009 | case PERF_RECORD_MMAP2: |
1010 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 1011 | case PERF_RECORD_COMM: |
45694aa7 | 1012 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1013 | case PERF_RECORD_FORK: |
45694aa7 | 1014 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1015 | case PERF_RECORD_EXIT: |
45694aa7 | 1016 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1017 | case PERF_RECORD_LOST: |
45694aa7 | 1018 | if (tool->lost == perf_event__process_lost) |
313e53b0 | 1019 | evlist->stats.total_lost += event->lost.lost; |
45694aa7 | 1020 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1021 | case PERF_RECORD_READ: |
45694aa7 | 1022 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1023 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1024 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1025 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1026 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 | 1027 | default: |
313e53b0 | 1028 | ++evlist->stats.nr_unknown_events; |
cbf41645 TG |
1029 | return -1; |
1030 | } | |
1031 | } | |
1032 | ||
d5652d86 AH |
1033 | static s64 perf_session__process_user_event(struct perf_session *session, |
1034 | union perf_event *event, | |
d5652d86 | 1035 | u64 file_offset) |
06aae590 | 1036 | { |
d704ebda | 1037 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1038 | struct perf_tool *tool = session->tool; |
cc9784bd | 1039 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
1040 | int err; |
1041 | ||
9fa8727a | 1042 | dump_event(session->evlist, event, file_offset, NULL); |
06aae590 | 1043 | |
cbf41645 | 1044 | /* These events are processed right away */ |
06aae590 | 1045 | switch (event->header.type) { |
2c46dbb5 | 1046 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1047 | err = tool->attr(tool, event, &session->evlist); |
cfe1c414 | 1048 | if (err == 0) { |
7b56cce2 | 1049 | perf_session__set_id_hdr_size(session); |
cfe1c414 AH |
1050 | perf_session__set_comm_exec(session); |
1051 | } | |
10d0f086 | 1052 | return err; |
f67697bd JO |
1053 | case PERF_RECORD_HEADER_EVENT_TYPE: |
1054 | /* | |
1055 | * Depreceated, but we need to handle it for sake | |
1056 | * of old data files create in pipe mode. | |
1057 | */ | |
1058 | return 0; | |
9215545e TZ |
1059 | case PERF_RECORD_HEADER_TRACING_DATA: |
1060 | /* setup for reading amidst mmap */ | |
cc9784bd | 1061 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 1062 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1063 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1064 | return tool->build_id(tool, event, session); |
d6b17beb | 1065 | case PERF_RECORD_FINISHED_ROUND: |
d704ebda | 1066 | return tool->finished_round(tool, event, oe); |
3c659eed AH |
1067 | case PERF_RECORD_ID_INDEX: |
1068 | return tool->id_index(tool, event, session); | |
a16ac023 AH |
1069 | case PERF_RECORD_AUXTRACE_INFO: |
1070 | return tool->auxtrace_info(tool, event, session); | |
1071 | case PERF_RECORD_AUXTRACE: | |
1072 | /* setup for reading amidst mmap */ | |
1073 | lseek(fd, file_offset + event->header.size, SEEK_SET); | |
1074 | return tool->auxtrace(tool, event, session); | |
e9bf54d2 AH |
1075 | case PERF_RECORD_AUXTRACE_ERROR: |
1076 | return tool->auxtrace_error(tool, event, session); | |
06aae590 | 1077 | default: |
ba74f064 | 1078 | return -EINVAL; |
06aae590 | 1079 | } |
ba74f064 TG |
1080 | } |
1081 | ||
a293829d AH |
1082 | int perf_session__deliver_synth_event(struct perf_session *session, |
1083 | union perf_event *event, | |
b7b61cbe | 1084 | struct perf_sample *sample) |
a293829d | 1085 | { |
fa713a4e | 1086 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1087 | struct perf_tool *tool = session->tool; |
fa713a4e ACM |
1088 | |
1089 | events_stats__inc(&evlist->stats, event->header.type); | |
a293829d AH |
1090 | |
1091 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1092 | return perf_session__process_user_event(session, event, 0); |
a293829d | 1093 | |
fa713a4e | 1094 | return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0); |
a293829d AH |
1095 | } |
1096 | ||
268fb20f JO |
1097 | static void event_swap(union perf_event *event, bool sample_id_all) |
1098 | { | |
1099 | perf_event__swap_op swap; | |
1100 | ||
1101 | swap = perf_event__swap_ops[event->header.type]; | |
1102 | if (swap) | |
1103 | swap(event, sample_id_all); | |
1104 | } | |
1105 | ||
5a52f33a AH |
1106 | int perf_session__peek_event(struct perf_session *session, off_t file_offset, |
1107 | void *buf, size_t buf_sz, | |
1108 | union perf_event **event_ptr, | |
1109 | struct perf_sample *sample) | |
1110 | { | |
1111 | union perf_event *event; | |
1112 | size_t hdr_sz, rest; | |
1113 | int fd; | |
1114 | ||
1115 | if (session->one_mmap && !session->header.needs_swap) { | |
1116 | event = file_offset - session->one_mmap_offset + | |
1117 | session->one_mmap_addr; | |
1118 | goto out_parse_sample; | |
1119 | } | |
1120 | ||
1121 | if (perf_data_file__is_pipe(session->file)) | |
1122 | return -1; | |
1123 | ||
1124 | fd = perf_data_file__fd(session->file); | |
1125 | hdr_sz = sizeof(struct perf_event_header); | |
1126 | ||
1127 | if (buf_sz < hdr_sz) | |
1128 | return -1; | |
1129 | ||
1130 | if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 || | |
1131 | readn(fd, &buf, hdr_sz) != (ssize_t)hdr_sz) | |
1132 | return -1; | |
1133 | ||
1134 | event = (union perf_event *)buf; | |
1135 | ||
1136 | if (session->header.needs_swap) | |
1137 | perf_event_header__bswap(&event->header); | |
1138 | ||
1139 | if (event->header.size < hdr_sz) | |
1140 | return -1; | |
1141 | ||
1142 | rest = event->header.size - hdr_sz; | |
1143 | ||
1144 | if (readn(fd, &buf, rest) != (ssize_t)rest) | |
1145 | return -1; | |
1146 | ||
1147 | if (session->header.needs_swap) | |
1148 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); | |
1149 | ||
1150 | out_parse_sample: | |
1151 | ||
1152 | if (sample && event->header.type < PERF_RECORD_USER_TYPE_START && | |
1153 | perf_evlist__parse_sample(session->evlist, event, sample)) | |
1154 | return -1; | |
1155 | ||
1156 | *event_ptr = event; | |
1157 | ||
1158 | return 0; | |
1159 | } | |
1160 | ||
d5652d86 | 1161 | static s64 perf_session__process_event(struct perf_session *session, |
b7b61cbe | 1162 | union perf_event *event, u64 file_offset) |
ba74f064 | 1163 | { |
313e53b0 | 1164 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1165 | struct perf_tool *tool = session->tool; |
8d50e5b4 | 1166 | struct perf_sample sample; |
ba74f064 TG |
1167 | int ret; |
1168 | ||
268fb20f | 1169 | if (session->header.needs_swap) |
313e53b0 | 1170 | event_swap(event, perf_evlist__sample_id_all(evlist)); |
ba74f064 TG |
1171 | |
1172 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1173 | return -EINVAL; | |
1174 | ||
313e53b0 | 1175 | events_stats__inc(&evlist->stats, event->header.type); |
ba74f064 TG |
1176 | |
1177 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1178 | return perf_session__process_user_event(session, event, file_offset); |
cbf41645 | 1179 | |
3dfc2c0a TG |
1180 | /* |
1181 | * For all kernel events we get the sample data | |
1182 | */ | |
313e53b0 | 1183 | ret = perf_evlist__parse_sample(evlist, event, &sample); |
5538beca FW |
1184 | if (ret) |
1185 | return ret; | |
3dfc2c0a | 1186 | |
0a8cb85c | 1187 | if (tool->ordered_events) { |
b7b61cbe | 1188 | ret = perf_session__queue_event(session, event, &sample, file_offset); |
cbf41645 TG |
1189 | if (ret != -ETIME) |
1190 | return ret; | |
1191 | } | |
1192 | ||
fa713a4e ACM |
1193 | return machines__deliver_event(&session->machines, evlist, event, |
1194 | &sample, tool, file_offset); | |
06aae590 ACM |
1195 | } |
1196 | ||
316c7136 | 1197 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1198 | { |
316c7136 ACM |
1199 | hdr->type = bswap_32(hdr->type); |
1200 | hdr->misc = bswap_16(hdr->misc); | |
1201 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1202 | } |
1203 | ||
b424eba2 ACM |
1204 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1205 | { | |
1fcb8768 | 1206 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1207 | } |
1208 | ||
316c7136 | 1209 | static struct thread *perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1210 | { |
1fcb8768 | 1211 | struct thread *thread; |
06aae590 | 1212 | |
1fcb8768 | 1213 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1214 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 ACM |
1215 | pr_err("problem inserting idle task.\n"); |
1216 | thread = NULL; | |
1217 | } | |
1218 | ||
1219 | return thread; | |
1220 | } | |
1221 | ||
9870d780 | 1222 | static void perf_session__warn_about_errors(const struct perf_session *session) |
11095994 | 1223 | { |
9870d780 ACM |
1224 | const struct events_stats *stats = &session->evlist->stats; |
1225 | const struct ordered_events *oe = &session->ordered_events; | |
1226 | ||
1227 | if (session->tool->lost == perf_event__process_lost && | |
ccda068f | 1228 | stats->nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1229 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1230 | "Check IO/CPU overload!\n\n", | |
ccda068f ACM |
1231 | stats->nr_events[0], |
1232 | stats->nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1233 | } |
1234 | ||
ccda068f | 1235 | if (stats->nr_unknown_events != 0) { |
11095994 ACM |
1236 | ui__warning("Found %u unknown events!\n\n" |
1237 | "Is this an older tool processing a perf.data " | |
1238 | "file generated by a more recent tool?\n\n" | |
1239 | "If that is not the case, consider " | |
1240 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f | 1241 | stats->nr_unknown_events); |
11095994 ACM |
1242 | } |
1243 | ||
ccda068f | 1244 | if (stats->nr_unknown_id != 0) { |
9e69c210 | 1245 | ui__warning("%u samples with id not present in the header\n", |
ccda068f | 1246 | stats->nr_unknown_id); |
9e69c210 ACM |
1247 | } |
1248 | ||
ccda068f | 1249 | if (stats->nr_invalid_chains != 0) { |
75be989a ACM |
1250 | ui__warning("Found invalid callchains!\n\n" |
1251 | "%u out of %u events were discarded for this reason.\n\n" | |
1252 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f ACM |
1253 | stats->nr_invalid_chains, |
1254 | stats->nr_events[PERF_RECORD_SAMPLE]); | |
75be989a | 1255 | } |
0c095715 | 1256 | |
ccda068f | 1257 | if (stats->nr_unprocessable_samples != 0) { |
0c095715 JR |
1258 | ui__warning("%u unprocessable samples recorded.\n" |
1259 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
ccda068f | 1260 | stats->nr_unprocessable_samples); |
0c095715 | 1261 | } |
f61ff6c0 | 1262 | |
9870d780 ACM |
1263 | if (oe->nr_unordered_events != 0) |
1264 | ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events); | |
11095994 ACM |
1265 | } |
1266 | ||
8dc58101 TZ |
1267 | volatile int session_done; |
1268 | ||
b7b61cbe | 1269 | static int __perf_session__process_pipe_events(struct perf_session *session) |
8dc58101 | 1270 | { |
fa713a4e | 1271 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1272 | struct perf_tool *tool = session->tool; |
316c7136 | 1273 | int fd = perf_data_file__fd(session->file); |
444d2866 SE |
1274 | union perf_event *event; |
1275 | uint32_t size, cur_size = 0; | |
1276 | void *buf = NULL; | |
d5652d86 | 1277 | s64 skip = 0; |
8dc58101 | 1278 | u64 head; |
727ebd54 | 1279 | ssize_t err; |
8dc58101 TZ |
1280 | void *p; |
1281 | ||
45694aa7 | 1282 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1283 | |
1284 | head = 0; | |
444d2866 SE |
1285 | cur_size = sizeof(union perf_event); |
1286 | ||
1287 | buf = malloc(cur_size); | |
1288 | if (!buf) | |
1289 | return -errno; | |
8dc58101 | 1290 | more: |
444d2866 | 1291 | event = buf; |
cc9784bd | 1292 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1293 | if (err <= 0) { |
1294 | if (err == 0) | |
1295 | goto done; | |
1296 | ||
1297 | pr_err("failed to read event header\n"); | |
1298 | goto out_err; | |
1299 | } | |
1300 | ||
316c7136 | 1301 | if (session->header.needs_swap) |
444d2866 | 1302 | perf_event_header__bswap(&event->header); |
8dc58101 | 1303 | |
444d2866 | 1304 | size = event->header.size; |
27389d78 AH |
1305 | if (size < sizeof(struct perf_event_header)) { |
1306 | pr_err("bad event header size\n"); | |
1307 | goto out_err; | |
1308 | } | |
8dc58101 | 1309 | |
444d2866 SE |
1310 | if (size > cur_size) { |
1311 | void *new = realloc(buf, size); | |
1312 | if (!new) { | |
1313 | pr_err("failed to allocate memory to read event\n"); | |
1314 | goto out_err; | |
1315 | } | |
1316 | buf = new; | |
1317 | cur_size = size; | |
1318 | event = buf; | |
1319 | } | |
1320 | p = event; | |
8dc58101 TZ |
1321 | p += sizeof(struct perf_event_header); |
1322 | ||
794e43b5 | 1323 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1324 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1325 | if (err <= 0) { |
1326 | if (err == 0) { | |
1327 | pr_err("unexpected end of event stream\n"); | |
1328 | goto done; | |
1329 | } | |
8dc58101 | 1330 | |
794e43b5 TZ |
1331 | pr_err("failed to read event data\n"); |
1332 | goto out_err; | |
1333 | } | |
8dc58101 TZ |
1334 | } |
1335 | ||
b7b61cbe | 1336 | if ((skip = perf_session__process_event(session, event, head)) < 0) { |
9389a460 | 1337 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1338 | head, event->header.size, event->header.type); |
9389a460 JO |
1339 | err = -EINVAL; |
1340 | goto out_err; | |
8dc58101 TZ |
1341 | } |
1342 | ||
1343 | head += size; | |
1344 | ||
8dc58101 TZ |
1345 | if (skip > 0) |
1346 | head += skip; | |
1347 | ||
1348 | if (!session_done()) | |
1349 | goto more; | |
1350 | done: | |
8c16b649 | 1351 | /* do the final flush for ordered samples */ |
b7b61cbe | 1352 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
8dc58101 | 1353 | out_err: |
444d2866 | 1354 | free(buf); |
9870d780 | 1355 | perf_session__warn_about_errors(session); |
adc56ed1 | 1356 | ordered_events__free(&session->ordered_events); |
8dc58101 TZ |
1357 | return err; |
1358 | } | |
1359 | ||
998bedc8 FW |
1360 | static union perf_event * |
1361 | fetch_mmaped_event(struct perf_session *session, | |
1362 | u64 head, size_t mmap_size, char *buf) | |
1363 | { | |
1364 | union perf_event *event; | |
1365 | ||
1366 | /* | |
1367 | * Ensure we have enough space remaining to read | |
1368 | * the size of the event in the headers. | |
1369 | */ | |
1370 | if (head + sizeof(event->header) > mmap_size) | |
1371 | return NULL; | |
1372 | ||
1373 | event = (union perf_event *)(buf + head); | |
1374 | ||
1375 | if (session->header.needs_swap) | |
1376 | perf_event_header__bswap(&event->header); | |
1377 | ||
27389d78 AH |
1378 | if (head + event->header.size > mmap_size) { |
1379 | /* We're not fetching the event so swap back again */ | |
1380 | if (session->header.needs_swap) | |
1381 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1382 | return NULL; |
27389d78 | 1383 | } |
998bedc8 FW |
1384 | |
1385 | return event; | |
1386 | } | |
1387 | ||
35d48ddf DM |
1388 | /* |
1389 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1390 | * slices. On 32bit we use 32MB. | |
1391 | */ | |
1392 | #if BITS_PER_LONG == 64 | |
1393 | #define MMAP_SIZE ULLONG_MAX | |
1394 | #define NUM_MMAPS 1 | |
1395 | #else | |
1396 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1397 | #define NUM_MMAPS 128 | |
1398 | #endif | |
1399 | ||
4ac30cf7 NK |
1400 | static int __perf_session__process_events(struct perf_session *session, |
1401 | u64 data_offset, u64 data_size, | |
b7b61cbe | 1402 | u64 file_size) |
06aae590 | 1403 | { |
fa713a4e | 1404 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1405 | struct perf_tool *tool = session->tool; |
cc9784bd | 1406 | int fd = perf_data_file__fd(session->file); |
d5652d86 | 1407 | u64 head, page_offset, file_offset, file_pos, size; |
fe174207 | 1408 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1409 | size_t mmap_size; |
35d48ddf | 1410 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1411 | union perf_event *event; |
4d3001fd | 1412 | struct ui_progress prog; |
d5652d86 | 1413 | s64 skip; |
0331ee0c | 1414 | |
45694aa7 | 1415 | perf_tool__fill_defaults(tool); |
06aae590 | 1416 | |
0331ee0c TG |
1417 | page_offset = page_size * (data_offset / page_size); |
1418 | file_offset = page_offset; | |
1419 | head = data_offset - page_offset; | |
06aae590 | 1420 | |
b314e5cf | 1421 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1422 | file_size = data_offset + data_size; |
1423 | ||
4d3001fd | 1424 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1425 | |
35d48ddf | 1426 | mmap_size = MMAP_SIZE; |
919d86d3 | 1427 | if (mmap_size > file_size) { |
55b44629 | 1428 | mmap_size = file_size; |
919d86d3 AH |
1429 | session->one_mmap = true; |
1430 | } | |
55b44629 | 1431 | |
fe174207 TG |
1432 | memset(mmaps, 0, sizeof(mmaps)); |
1433 | ||
ba21594c ACM |
1434 | mmap_prot = PROT_READ; |
1435 | mmap_flags = MAP_SHARED; | |
1436 | ||
0331ee0c | 1437 | if (session->header.needs_swap) { |
ba21594c ACM |
1438 | mmap_prot |= PROT_WRITE; |
1439 | mmap_flags = MAP_PRIVATE; | |
1440 | } | |
06aae590 | 1441 | remap: |
cc9784bd | 1442 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1443 | file_offset); |
06aae590 ACM |
1444 | if (buf == MAP_FAILED) { |
1445 | pr_err("failed to mmap file\n"); | |
1446 | err = -errno; | |
1447 | goto out_err; | |
1448 | } | |
fe174207 TG |
1449 | mmaps[map_idx] = buf; |
1450 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1451 | file_pos = file_offset + head; |
919d86d3 AH |
1452 | if (session->one_mmap) { |
1453 | session->one_mmap_addr = buf; | |
1454 | session->one_mmap_offset = file_offset; | |
1455 | } | |
06aae590 ACM |
1456 | |
1457 | more: | |
998bedc8 FW |
1458 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1459 | if (!event) { | |
fe174207 TG |
1460 | if (mmaps[map_idx]) { |
1461 | munmap(mmaps[map_idx], mmap_size); | |
1462 | mmaps[map_idx] = NULL; | |
1463 | } | |
06aae590 | 1464 | |
0331ee0c TG |
1465 | page_offset = page_size * (head / page_size); |
1466 | file_offset += page_offset; | |
1467 | head -= page_offset; | |
06aae590 ACM |
1468 | goto remap; |
1469 | } | |
1470 | ||
1471 | size = event->header.size; | |
1472 | ||
27389d78 | 1473 | if (size < sizeof(struct perf_event_header) || |
b7b61cbe | 1474 | (skip = perf_session__process_event(session, event, file_pos)) < 0) { |
9389a460 JO |
1475 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1476 | file_offset + head, event->header.size, | |
1477 | event->header.type); | |
1478 | err = -EINVAL; | |
1479 | goto out_err; | |
06aae590 ACM |
1480 | } |
1481 | ||
6f917c70 AH |
1482 | if (skip) |
1483 | size += skip; | |
1484 | ||
06aae590 | 1485 | head += size; |
d6513281 | 1486 | file_pos += size; |
06aae590 | 1487 | |
4d3001fd | 1488 | ui_progress__update(&prog, size); |
55b44629 | 1489 | |
33e940a2 | 1490 | if (session_done()) |
8c16b649 | 1491 | goto out; |
33e940a2 | 1492 | |
d6513281 | 1493 | if (file_pos < file_size) |
06aae590 | 1494 | goto more; |
d6513281 | 1495 | |
8c16b649 | 1496 | out: |
c61e52ee | 1497 | /* do the final flush for ordered samples */ |
b7b61cbe | 1498 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
06aae590 | 1499 | out_err: |
a5580f3e | 1500 | ui_progress__finish(); |
9870d780 | 1501 | perf_session__warn_about_errors(session); |
adc56ed1 | 1502 | ordered_events__free(&session->ordered_events); |
919d86d3 | 1503 | session->one_mmap = false; |
06aae590 ACM |
1504 | return err; |
1505 | } | |
27295592 | 1506 | |
b7b61cbe | 1507 | int perf_session__process_events(struct perf_session *session) |
6122e4e4 | 1508 | { |
316c7136 | 1509 | u64 size = perf_data_file__size(session->file); |
6122e4e4 ACM |
1510 | int err; |
1511 | ||
316c7136 | 1512 | if (perf_session__register_idle_thread(session) == NULL) |
6122e4e4 ACM |
1513 | return -ENOMEM; |
1514 | ||
316c7136 ACM |
1515 | if (!perf_data_file__is_pipe(session->file)) |
1516 | err = __perf_session__process_events(session, | |
1517 | session->header.data_offset, | |
b7b61cbe | 1518 | session->header.data_size, size); |
8dc58101 | 1519 | else |
b7b61cbe | 1520 | err = __perf_session__process_pipe_events(session); |
88ca895d | 1521 | |
6122e4e4 ACM |
1522 | return err; |
1523 | } | |
1524 | ||
7f3be652 | 1525 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1526 | { |
93ea01c2 DA |
1527 | struct perf_evsel *evsel; |
1528 | ||
0050f7aa | 1529 | evlist__for_each(session->evlist, evsel) { |
93ea01c2 DA |
1530 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) |
1531 | return true; | |
27295592 ACM |
1532 | } |
1533 | ||
93ea01c2 DA |
1534 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1535 | return false; | |
27295592 | 1536 | } |
56b03f3c | 1537 | |
743eb868 ACM |
1538 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1539 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1540 | { |
1541 | char *bracket; | |
9de89fe7 | 1542 | enum map_type i; |
a1645ce1 ZY |
1543 | struct ref_reloc_sym *ref; |
1544 | ||
1545 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1546 | if (ref == NULL) | |
1547 | return -ENOMEM; | |
56b03f3c | 1548 | |
a1645ce1 ZY |
1549 | ref->name = strdup(symbol_name); |
1550 | if (ref->name == NULL) { | |
1551 | free(ref); | |
56b03f3c | 1552 | return -ENOMEM; |
a1645ce1 | 1553 | } |
56b03f3c | 1554 | |
a1645ce1 | 1555 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1556 | if (bracket) |
1557 | *bracket = '\0'; | |
1558 | ||
a1645ce1 | 1559 | ref->addr = addr; |
9de89fe7 ACM |
1560 | |
1561 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 | 1562 | struct kmap *kmap = map__kmap(maps[i]); |
ba92732e WN |
1563 | |
1564 | if (!kmap) | |
1565 | continue; | |
a1645ce1 | 1566 | kmap->ref_reloc_sym = ref; |
9de89fe7 ACM |
1567 | } |
1568 | ||
56b03f3c ACM |
1569 | return 0; |
1570 | } | |
1f626bc3 | 1571 | |
316c7136 | 1572 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 1573 | { |
316c7136 | 1574 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 1575 | } |
f869097e | 1576 | |
316c7136 | 1577 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 1578 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1579 | { |
316c7136 | 1580 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 1581 | } |
e248de33 ACM |
1582 | |
1583 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1584 | { | |
e248de33 ACM |
1585 | size_t ret = fprintf(fp, "Aggregated stats:\n"); |
1586 | ||
75be989a | 1587 | ret += events_stats__fprintf(&session->evlist->stats, fp); |
e248de33 ACM |
1588 | return ret; |
1589 | } | |
c0230b2b | 1590 | |
b424eba2 ACM |
1591 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1592 | { | |
1593 | /* | |
1594 | * FIXME: Here we have to actually print all the machines in this | |
1595 | * session, not just the host... | |
1596 | */ | |
876650e6 | 1597 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1598 | } |
1599 | ||
9cbdb702 DA |
1600 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1601 | unsigned int type) | |
1602 | { | |
1603 | struct perf_evsel *pos; | |
1604 | ||
0050f7aa | 1605 | evlist__for_each(session->evlist, pos) { |
9cbdb702 DA |
1606 | if (pos->attr.type == type) |
1607 | return pos; | |
1608 | } | |
1609 | return NULL; | |
1610 | } | |
1611 | ||
a2cb3cf2 | 1612 | void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, |
cc22e575 | 1613 | struct addr_location *al, |
307cbb92 | 1614 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b | 1615 | { |
c0230b2b | 1616 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1617 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1618 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1619 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1620 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 | 1621 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
cc8fae1d | 1622 | int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; |
b0b35f01 | 1623 | char s = print_oneline ? ' ' : '\t'; |
c0230b2b | 1624 | |
c0230b2b | 1625 | if (symbol_conf.use_callchain && sample->callchain) { |
a2cb3cf2 | 1626 | struct addr_location node_al; |
c0230b2b | 1627 | |
cc8b7c2b ACM |
1628 | if (thread__resolve_callchain(al->thread, evsel, |
1629 | sample, NULL, NULL, | |
1630 | PERF_MAX_STACK_DEPTH) != 0) { | |
c0230b2b DA |
1631 | if (verbose) |
1632 | error("Failed to resolve callchain. Skipping\n"); | |
1633 | return; | |
1634 | } | |
47260645 | 1635 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1636 | |
a2cb3cf2 AH |
1637 | if (print_symoffset) |
1638 | node_al = *al; | |
1639 | ||
307cbb92 | 1640 | while (stack_depth) { |
a4eb24a4 AH |
1641 | u64 addr = 0; |
1642 | ||
47260645 | 1643 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1644 | if (!node) |
1645 | break; | |
1646 | ||
d2ff1b14 DA |
1647 | if (node->sym && node->sym->ignore) |
1648 | goto next; | |
1649 | ||
a6ffaf91 | 1650 | if (print_ip) |
b0b35f01 | 1651 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1652 | |
a4eb24a4 AH |
1653 | if (node->map) |
1654 | addr = node->map->map_ip(node->map, node->ip); | |
1655 | ||
787bef17 | 1656 | if (print_sym) { |
547a92e0 | 1657 | printf(" "); |
251f426f | 1658 | if (print_symoffset) { |
a4eb24a4 | 1659 | node_al.addr = addr; |
a2cb3cf2 AH |
1660 | node_al.map = node->map; |
1661 | symbol__fprintf_symname_offs(node->sym, &node_al, stdout); | |
251f426f DA |
1662 | } else |
1663 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1664 | } |
251f426f | 1665 | |
610723f2 | 1666 | if (print_dso) { |
547a92e0 | 1667 | printf(" ("); |
52deff71 | 1668 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1669 | printf(")"); |
787bef17 | 1670 | } |
b0b35f01 | 1671 | |
cc8fae1d AH |
1672 | if (print_srcline) |
1673 | map__fprintf_srcline(node->map, addr, "\n ", | |
1674 | stdout); | |
1675 | ||
b0b35f01 DA |
1676 | if (!print_oneline) |
1677 | printf("\n"); | |
c0230b2b | 1678 | |
307cbb92 | 1679 | stack_depth--; |
d2ff1b14 DA |
1680 | next: |
1681 | callchain_cursor_advance(&callchain_cursor); | |
c0230b2b DA |
1682 | } |
1683 | ||
1684 | } else { | |
a2cb3cf2 | 1685 | if (al->sym && al->sym->ignore) |
d2ff1b14 DA |
1686 | return; |
1687 | ||
a6ffaf91 DA |
1688 | if (print_ip) |
1689 | printf("%16" PRIx64, sample->ip); | |
1690 | ||
787bef17 | 1691 | if (print_sym) { |
547a92e0 | 1692 | printf(" "); |
a978f2ab | 1693 | if (print_symoffset) |
a2cb3cf2 | 1694 | symbol__fprintf_symname_offs(al->sym, al, |
a978f2ab AN |
1695 | stdout); |
1696 | else | |
a2cb3cf2 | 1697 | symbol__fprintf_symname(al->sym, stdout); |
610723f2 DA |
1698 | } |
1699 | ||
1700 | if (print_dso) { | |
547a92e0 | 1701 | printf(" ("); |
a2cb3cf2 | 1702 | map__fprintf_dsoname(al->map, stdout); |
547a92e0 | 1703 | printf(")"); |
787bef17 | 1704 | } |
cc8fae1d AH |
1705 | |
1706 | if (print_srcline) | |
1707 | map__fprintf_srcline(al->map, al->addr, "\n ", stdout); | |
c0230b2b DA |
1708 | } |
1709 | } | |
5d67be97 AB |
1710 | |
1711 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1712 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1713 | { | |
8bac41cb | 1714 | int i, err = -1; |
5d67be97 AB |
1715 | struct cpu_map *map; |
1716 | ||
1717 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1718 | struct perf_evsel *evsel; | |
1719 | ||
1720 | evsel = perf_session__find_first_evtype(session, i); | |
1721 | if (!evsel) | |
1722 | continue; | |
1723 | ||
1724 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1725 | pr_err("File does not contain CPU events. " | |
1726 | "Remove -c option to proceed.\n"); | |
1727 | return -1; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1732 | if (map == NULL) { |
1733 | pr_err("Invalid cpu_list\n"); | |
1734 | return -1; | |
1735 | } | |
5d67be97 AB |
1736 | |
1737 | for (i = 0; i < map->nr; i++) { | |
1738 | int cpu = map->map[i]; | |
1739 | ||
1740 | if (cpu >= MAX_NR_CPUS) { | |
1741 | pr_err("Requested CPU %d too large. " | |
1742 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 1743 | goto out_delete_map; |
5d67be97 AB |
1744 | } |
1745 | ||
1746 | set_bit(cpu, cpu_bitmap); | |
1747 | } | |
1748 | ||
8bac41cb SF |
1749 | err = 0; |
1750 | ||
1751 | out_delete_map: | |
1752 | cpu_map__delete(map); | |
1753 | return err; | |
5d67be97 | 1754 | } |
fbe96f29 SE |
1755 | |
1756 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1757 | bool full) | |
1758 | { | |
1759 | struct stat st; | |
c5765ece | 1760 | int fd, ret; |
fbe96f29 SE |
1761 | |
1762 | if (session == NULL || fp == NULL) | |
1763 | return; | |
1764 | ||
c5765ece MI |
1765 | fd = perf_data_file__fd(session->file); |
1766 | ||
cc9784bd | 1767 | ret = fstat(fd, &st); |
fbe96f29 SE |
1768 | if (ret == -1) |
1769 | return; | |
1770 | ||
1771 | fprintf(fp, "# ========\n"); | |
1772 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1773 | perf_header__fprintf_info(session, fp, full); | |
1774 | fprintf(fp, "# ========\n#\n"); | |
1775 | } | |
da378962 ACM |
1776 | |
1777 | ||
1778 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1779 | const struct perf_evsel_str_handler *assocs, | |
1780 | size_t nr_assocs) | |
1781 | { | |
da378962 | 1782 | struct perf_evsel *evsel; |
da378962 ACM |
1783 | size_t i; |
1784 | int err; | |
1785 | ||
1786 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1787 | /* |
1788 | * Adding a handler for an event not in the session, | |
1789 | * just ignore it. | |
1790 | */ | |
1791 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1792 | if (evsel == NULL) |
ccf53eac | 1793 | continue; |
da378962 ACM |
1794 | |
1795 | err = -EEXIST; | |
744a9719 | 1796 | if (evsel->handler != NULL) |
ccf53eac | 1797 | goto out; |
744a9719 | 1798 | evsel->handler = assocs[i].handler; |
da378962 ACM |
1799 | } |
1800 | ||
1801 | err = 0; | |
1802 | out: | |
1803 | return err; | |
da378962 | 1804 | } |
3c659eed AH |
1805 | |
1806 | int perf_event__process_id_index(struct perf_tool *tool __maybe_unused, | |
1807 | union perf_event *event, | |
1808 | struct perf_session *session) | |
1809 | { | |
1810 | struct perf_evlist *evlist = session->evlist; | |
1811 | struct id_index_event *ie = &event->id_index; | |
1812 | size_t i, nr, max_nr; | |
1813 | ||
1814 | max_nr = (ie->header.size - sizeof(struct id_index_event)) / | |
1815 | sizeof(struct id_index_entry); | |
1816 | nr = ie->nr; | |
1817 | if (nr > max_nr) | |
1818 | return -EINVAL; | |
1819 | ||
1820 | if (dump_trace) | |
1821 | fprintf(stdout, " nr: %zu\n", nr); | |
1822 | ||
1823 | for (i = 0; i < nr; i++) { | |
1824 | struct id_index_entry *e = &ie->entries[i]; | |
1825 | struct perf_sample_id *sid; | |
1826 | ||
1827 | if (dump_trace) { | |
1828 | fprintf(stdout, " ... id: %"PRIu64, e->id); | |
1829 | fprintf(stdout, " idx: %"PRIu64, e->idx); | |
1830 | fprintf(stdout, " cpu: %"PRId64, e->cpu); | |
1831 | fprintf(stdout, " tid: %"PRId64"\n", e->tid); | |
1832 | } | |
1833 | ||
1834 | sid = perf_evlist__id2sid(evlist, e->id); | |
1835 | if (!sid) | |
1836 | return -ENOENT; | |
1837 | sid->idx = e->idx; | |
1838 | sid->cpu = e->cpu; | |
1839 | sid->tid = e->tid; | |
1840 | } | |
1841 | return 0; | |
1842 | } | |
1843 | ||
1844 | int perf_event__synthesize_id_index(struct perf_tool *tool, | |
1845 | perf_event__handler_t process, | |
1846 | struct perf_evlist *evlist, | |
1847 | struct machine *machine) | |
1848 | { | |
1849 | union perf_event *ev; | |
1850 | struct perf_evsel *evsel; | |
1851 | size_t nr = 0, i = 0, sz, max_nr, n; | |
1852 | int err; | |
1853 | ||
1854 | pr_debug2("Synthesizing id index\n"); | |
1855 | ||
1856 | max_nr = (UINT16_MAX - sizeof(struct id_index_event)) / | |
1857 | sizeof(struct id_index_entry); | |
1858 | ||
cba9b847 | 1859 | evlist__for_each(evlist, evsel) |
3c659eed AH |
1860 | nr += evsel->ids; |
1861 | ||
1862 | n = nr > max_nr ? max_nr : nr; | |
1863 | sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry); | |
1864 | ev = zalloc(sz); | |
1865 | if (!ev) | |
1866 | return -ENOMEM; | |
1867 | ||
1868 | ev->id_index.header.type = PERF_RECORD_ID_INDEX; | |
1869 | ev->id_index.header.size = sz; | |
1870 | ev->id_index.nr = n; | |
1871 | ||
cba9b847 | 1872 | evlist__for_each(evlist, evsel) { |
3c659eed AH |
1873 | u32 j; |
1874 | ||
1875 | for (j = 0; j < evsel->ids; j++) { | |
1876 | struct id_index_entry *e; | |
1877 | struct perf_sample_id *sid; | |
1878 | ||
1879 | if (i >= n) { | |
1880 | err = process(tool, ev, NULL, machine); | |
1881 | if (err) | |
1882 | goto out_err; | |
1883 | nr -= n; | |
1884 | i = 0; | |
1885 | } | |
1886 | ||
1887 | e = &ev->id_index.entries[i++]; | |
1888 | ||
1889 | e->id = evsel->id[j]; | |
1890 | ||
1891 | sid = perf_evlist__id2sid(evlist, e->id); | |
1892 | if (!sid) { | |
1893 | free(ev); | |
1894 | return -ENOENT; | |
1895 | } | |
1896 | ||
1897 | e->idx = sid->idx; | |
1898 | e->cpu = sid->cpu; | |
1899 | e->tid = sid->tid; | |
1900 | } | |
1901 | } | |
1902 | ||
1903 | sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry); | |
1904 | ev->id_index.header.size = sz; | |
1905 | ev->id_index.nr = nr; | |
1906 | ||
1907 | err = process(tool, ev, NULL, machine); | |
1908 | out_err: | |
1909 | free(ev); | |
1910 | ||
1911 | return err; | |
1912 | } |