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Commit | Line | Data |
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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; | |
c4937a91 KL |
328 | if (tool->lost_samples == NULL) |
329 | tool->lost_samples = perf_event__process_lost_samples; | |
4a96f7a0 AH |
330 | if (tool->aux == NULL) |
331 | tool->aux = perf_event__process_aux; | |
0ad21f68 AH |
332 | if (tool->itrace_start == NULL) |
333 | tool->itrace_start = perf_event__process_itrace_start; | |
45694aa7 ACM |
334 | if (tool->read == NULL) |
335 | tool->read = process_event_sample_stub; | |
336 | if (tool->throttle == NULL) | |
337 | tool->throttle = process_event_stub; | |
338 | if (tool->unthrottle == NULL) | |
339 | tool->unthrottle = process_event_stub; | |
340 | if (tool->attr == NULL) | |
341 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
342 | if (tool->tracing_data == NULL) |
343 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
344 | if (tool->build_id == NULL) | |
d704ebda | 345 | tool->build_id = process_build_id_stub; |
45694aa7 | 346 | if (tool->finished_round == NULL) { |
0a8cb85c | 347 | if (tool->ordered_events) |
45694aa7 | 348 | tool->finished_round = process_finished_round; |
d6b17beb | 349 | else |
45694aa7 | 350 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 351 | } |
3c659eed AH |
352 | if (tool->id_index == NULL) |
353 | tool->id_index = process_id_index_stub; | |
a16ac023 AH |
354 | if (tool->auxtrace_info == NULL) |
355 | tool->auxtrace_info = process_event_auxtrace_info_stub; | |
356 | if (tool->auxtrace == NULL) | |
357 | tool->auxtrace = process_event_auxtrace_stub; | |
e9bf54d2 AH |
358 | if (tool->auxtrace_error == NULL) |
359 | tool->auxtrace_error = process_event_auxtrace_error_stub; | |
06aae590 | 360 | } |
48000a1a | 361 | |
268fb20f JO |
362 | static void swap_sample_id_all(union perf_event *event, void *data) |
363 | { | |
364 | void *end = (void *) event + event->header.size; | |
365 | int size = end - data; | |
366 | ||
367 | BUG_ON(size % sizeof(u64)); | |
368 | mem_bswap_64(data, size); | |
369 | } | |
370 | ||
371 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 372 | bool sample_id_all __maybe_unused) |
ba21594c | 373 | { |
8115d60c ACM |
374 | struct perf_event_header *hdr = &event->header; |
375 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
376 | } |
377 | ||
268fb20f | 378 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 379 | { |
8115d60c ACM |
380 | event->comm.pid = bswap_32(event->comm.pid); |
381 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
382 | |
383 | if (sample_id_all) { | |
384 | void *data = &event->comm.comm; | |
385 | ||
9ac3e487 | 386 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
387 | swap_sample_id_all(event, data); |
388 | } | |
ba21594c ACM |
389 | } |
390 | ||
268fb20f JO |
391 | static void perf_event__mmap_swap(union perf_event *event, |
392 | bool sample_id_all) | |
ba21594c | 393 | { |
8115d60c ACM |
394 | event->mmap.pid = bswap_32(event->mmap.pid); |
395 | event->mmap.tid = bswap_32(event->mmap.tid); | |
396 | event->mmap.start = bswap_64(event->mmap.start); | |
397 | event->mmap.len = bswap_64(event->mmap.len); | |
398 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
399 | |
400 | if (sample_id_all) { | |
401 | void *data = &event->mmap.filename; | |
402 | ||
9ac3e487 | 403 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
404 | swap_sample_id_all(event, data); |
405 | } | |
ba21594c ACM |
406 | } |
407 | ||
5c5e854b SE |
408 | static void perf_event__mmap2_swap(union perf_event *event, |
409 | bool sample_id_all) | |
410 | { | |
411 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
412 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
413 | event->mmap2.start = bswap_64(event->mmap2.start); | |
414 | event->mmap2.len = bswap_64(event->mmap2.len); | |
415 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
416 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
417 | event->mmap2.min = bswap_32(event->mmap2.min); | |
418 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
419 | ||
420 | if (sample_id_all) { | |
421 | void *data = &event->mmap2.filename; | |
422 | ||
423 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
424 | swap_sample_id_all(event, data); | |
425 | } | |
426 | } | |
268fb20f | 427 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 428 | { |
8115d60c ACM |
429 | event->fork.pid = bswap_32(event->fork.pid); |
430 | event->fork.tid = bswap_32(event->fork.tid); | |
431 | event->fork.ppid = bswap_32(event->fork.ppid); | |
432 | event->fork.ptid = bswap_32(event->fork.ptid); | |
433 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
434 | |
435 | if (sample_id_all) | |
436 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
437 | } |
438 | ||
268fb20f | 439 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 440 | { |
8115d60c ACM |
441 | event->read.pid = bswap_32(event->read.pid); |
442 | event->read.tid = bswap_32(event->read.tid); | |
443 | event->read.value = bswap_64(event->read.value); | |
444 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
445 | event->read.time_running = bswap_64(event->read.time_running); | |
446 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
447 | |
448 | if (sample_id_all) | |
449 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
450 | } |
451 | ||
4a96f7a0 AH |
452 | static void perf_event__aux_swap(union perf_event *event, bool sample_id_all) |
453 | { | |
454 | event->aux.aux_offset = bswap_64(event->aux.aux_offset); | |
455 | event->aux.aux_size = bswap_64(event->aux.aux_size); | |
456 | event->aux.flags = bswap_64(event->aux.flags); | |
457 | ||
458 | if (sample_id_all) | |
459 | swap_sample_id_all(event, &event->aux + 1); | |
460 | } | |
461 | ||
0ad21f68 AH |
462 | static void perf_event__itrace_start_swap(union perf_event *event, |
463 | bool sample_id_all) | |
464 | { | |
465 | event->itrace_start.pid = bswap_32(event->itrace_start.pid); | |
466 | event->itrace_start.tid = bswap_32(event->itrace_start.tid); | |
467 | ||
468 | if (sample_id_all) | |
469 | swap_sample_id_all(event, &event->itrace_start + 1); | |
470 | } | |
471 | ||
dd96c46b JO |
472 | static void perf_event__throttle_swap(union perf_event *event, |
473 | bool sample_id_all) | |
474 | { | |
475 | event->throttle.time = bswap_64(event->throttle.time); | |
476 | event->throttle.id = bswap_64(event->throttle.id); | |
477 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
478 | ||
479 | if (sample_id_all) | |
480 | swap_sample_id_all(event, &event->throttle + 1); | |
481 | } | |
482 | ||
e108c66e JO |
483 | static u8 revbyte(u8 b) |
484 | { | |
485 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
486 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
487 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
488 | return (u8) rev; | |
489 | } | |
490 | ||
491 | /* | |
492 | * XXX this is hack in attempt to carry flags bitfield | |
493 | * throught endian village. ABI says: | |
494 | * | |
495 | * Bit-fields are allocated from right to left (least to most significant) | |
496 | * on little-endian implementations and from left to right (most to least | |
497 | * significant) on big-endian implementations. | |
498 | * | |
499 | * The above seems to be byte specific, so we need to reverse each | |
500 | * byte of the bitfield. 'Internet' also says this might be implementation | |
501 | * specific and we probably need proper fix and carry perf_event_attr | |
502 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
503 | * to work for now. | |
504 | */ | |
505 | static void swap_bitfield(u8 *p, unsigned len) | |
506 | { | |
507 | unsigned i; | |
508 | ||
509 | for (i = 0; i < len; i++) { | |
510 | *p = revbyte(*p); | |
511 | p++; | |
512 | } | |
513 | } | |
514 | ||
eda3913b DA |
515 | /* exported for swapping attributes in file header */ |
516 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
517 | { | |
518 | attr->type = bswap_32(attr->type); | |
519 | attr->size = bswap_32(attr->size); | |
520 | attr->config = bswap_64(attr->config); | |
521 | attr->sample_period = bswap_64(attr->sample_period); | |
522 | attr->sample_type = bswap_64(attr->sample_type); | |
523 | attr->read_format = bswap_64(attr->read_format); | |
524 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
525 | attr->bp_type = bswap_32(attr->bp_type); | |
526 | attr->bp_addr = bswap_64(attr->bp_addr); | |
527 | attr->bp_len = bswap_64(attr->bp_len); | |
7db59528 AH |
528 | attr->branch_sample_type = bswap_64(attr->branch_sample_type); |
529 | attr->sample_regs_user = bswap_64(attr->sample_regs_user); | |
530 | attr->sample_stack_user = bswap_32(attr->sample_stack_user); | |
70d73de4 | 531 | attr->aux_watermark = bswap_32(attr->aux_watermark); |
e108c66e JO |
532 | |
533 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
534 | } |
535 | ||
268fb20f | 536 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 537 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
538 | { |
539 | size_t size; | |
540 | ||
eda3913b | 541 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 542 | |
8115d60c ACM |
543 | size = event->header.size; |
544 | size -= (void *)&event->attr.id - (void *)event; | |
545 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
546 | } |
547 | ||
268fb20f | 548 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 549 | bool sample_id_all __maybe_unused) |
cd19a035 | 550 | { |
8115d60c ACM |
551 | event->event_type.event_type.event_id = |
552 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
553 | } |
554 | ||
268fb20f | 555 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 556 | bool sample_id_all __maybe_unused) |
9215545e | 557 | { |
8115d60c | 558 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
559 | } |
560 | ||
a16ac023 AH |
561 | static void perf_event__auxtrace_info_swap(union perf_event *event, |
562 | bool sample_id_all __maybe_unused) | |
563 | { | |
564 | size_t size; | |
565 | ||
566 | event->auxtrace_info.type = bswap_32(event->auxtrace_info.type); | |
567 | ||
568 | size = event->header.size; | |
569 | size -= (void *)&event->auxtrace_info.priv - (void *)event; | |
570 | mem_bswap_64(event->auxtrace_info.priv, size); | |
571 | } | |
572 | ||
573 | static void perf_event__auxtrace_swap(union perf_event *event, | |
574 | bool sample_id_all __maybe_unused) | |
575 | { | |
576 | event->auxtrace.size = bswap_64(event->auxtrace.size); | |
577 | event->auxtrace.offset = bswap_64(event->auxtrace.offset); | |
578 | event->auxtrace.reference = bswap_64(event->auxtrace.reference); | |
579 | event->auxtrace.idx = bswap_32(event->auxtrace.idx); | |
580 | event->auxtrace.tid = bswap_32(event->auxtrace.tid); | |
581 | event->auxtrace.cpu = bswap_32(event->auxtrace.cpu); | |
582 | } | |
583 | ||
e9bf54d2 AH |
584 | static void perf_event__auxtrace_error_swap(union perf_event *event, |
585 | bool sample_id_all __maybe_unused) | |
586 | { | |
587 | event->auxtrace_error.type = bswap_32(event->auxtrace_error.type); | |
588 | event->auxtrace_error.code = bswap_32(event->auxtrace_error.code); | |
589 | event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu); | |
590 | event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid); | |
591 | event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid); | |
592 | event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip); | |
593 | } | |
594 | ||
268fb20f JO |
595 | typedef void (*perf_event__swap_op)(union perf_event *event, |
596 | bool sample_id_all); | |
ba21594c | 597 | |
8115d60c ACM |
598 | static perf_event__swap_op perf_event__swap_ops[] = { |
599 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 600 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
601 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
602 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
603 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
604 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
605 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
606 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
607 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 608 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
4a96f7a0 | 609 | [PERF_RECORD_AUX] = perf_event__aux_swap, |
0ad21f68 | 610 | [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap, |
c4937a91 | 611 | [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap, |
eda3913b | 612 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
613 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
614 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
615 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
3c659eed | 616 | [PERF_RECORD_ID_INDEX] = perf_event__all64_swap, |
a16ac023 AH |
617 | [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap, |
618 | [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap, | |
e9bf54d2 | 619 | [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap, |
8115d60c | 620 | [PERF_RECORD_HEADER_MAX] = NULL, |
ba21594c ACM |
621 | }; |
622 | ||
d6b17beb FW |
623 | /* |
624 | * When perf record finishes a pass on every buffers, it records this pseudo | |
625 | * event. | |
626 | * We record the max timestamp t found in the pass n. | |
627 | * Assuming these timestamps are monotonic across cpus, we know that if | |
628 | * a buffer still has events with timestamps below t, they will be all | |
629 | * available and then read in the pass n + 1. | |
630 | * Hence when we start to read the pass n + 2, we can safely flush every | |
631 | * events with timestamps below t. | |
632 | * | |
633 | * ============ PASS n ================= | |
634 | * CPU 0 | CPU 1 | |
635 | * | | |
636 | * cnt1 timestamps | cnt2 timestamps | |
637 | * 1 | 2 | |
638 | * 2 | 3 | |
639 | * - | 4 <--- max recorded | |
640 | * | |
641 | * ============ PASS n + 1 ============== | |
642 | * CPU 0 | CPU 1 | |
643 | * | | |
644 | * cnt1 timestamps | cnt2 timestamps | |
645 | * 3 | 5 | |
646 | * 4 | 6 | |
647 | * 5 | 7 <---- max recorded | |
648 | * | |
649 | * Flush every events below timestamp 4 | |
650 | * | |
651 | * ============ PASS n + 2 ============== | |
652 | * CPU 0 | CPU 1 | |
653 | * | | |
654 | * cnt1 timestamps | cnt2 timestamps | |
655 | * 6 | 8 | |
656 | * 7 | 9 | |
657 | * - | 10 | |
658 | * | |
659 | * Flush every events below timestamp 7 | |
660 | * etc... | |
661 | */ | |
b7b61cbe | 662 | static int process_finished_round(struct perf_tool *tool __maybe_unused, |
1d037ca1 | 663 | union perf_event *event __maybe_unused, |
d704ebda | 664 | struct ordered_events *oe) |
d6b17beb | 665 | { |
b7b61cbe | 666 | return ordered_events__flush(oe, OE_FLUSH__ROUND); |
d6b17beb FW |
667 | } |
668 | ||
b7b61cbe ACM |
669 | int perf_session__queue_event(struct perf_session *s, union perf_event *event, |
670 | struct perf_sample *sample, u64 file_offset) | |
c61e52ee | 671 | { |
4a6b362f | 672 | return ordered_events__queue(&s->ordered_events, event, sample, file_offset); |
640c03ce | 673 | } |
c61e52ee | 674 | |
384b6055 | 675 | static void callchain__lbr_callstack_printf(struct perf_sample *sample) |
640c03ce | 676 | { |
384b6055 KL |
677 | struct ip_callchain *callchain = sample->callchain; |
678 | struct branch_stack *lbr_stack = sample->branch_stack; | |
679 | u64 kernel_callchain_nr = callchain->nr; | |
640c03ce | 680 | unsigned int i; |
c61e52ee | 681 | |
384b6055 KL |
682 | for (i = 0; i < kernel_callchain_nr; i++) { |
683 | if (callchain->ips[i] == PERF_CONTEXT_USER) | |
684 | break; | |
685 | } | |
686 | ||
687 | if ((i != kernel_callchain_nr) && lbr_stack->nr) { | |
688 | u64 total_nr; | |
689 | /* | |
690 | * LBR callstack can only get user call chain, | |
691 | * i is kernel call chain number, | |
692 | * 1 is PERF_CONTEXT_USER. | |
693 | * | |
694 | * The user call chain is stored in LBR registers. | |
695 | * LBR are pair registers. The caller is stored | |
696 | * in "from" register, while the callee is stored | |
697 | * in "to" register. | |
698 | * For example, there is a call stack | |
699 | * "A"->"B"->"C"->"D". | |
700 | * The LBR registers will recorde like | |
701 | * "C"->"D", "B"->"C", "A"->"B". | |
702 | * So only the first "to" register and all "from" | |
703 | * registers are needed to construct the whole stack. | |
704 | */ | |
705 | total_nr = i + 1 + lbr_stack->nr + 1; | |
706 | kernel_callchain_nr = i + 1; | |
707 | ||
708 | printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr); | |
709 | ||
710 | for (i = 0; i < kernel_callchain_nr; i++) | |
711 | printf("..... %2d: %016" PRIx64 "\n", | |
712 | i, callchain->ips[i]); | |
713 | ||
714 | printf("..... %2d: %016" PRIx64 "\n", | |
715 | (int)(kernel_callchain_nr), lbr_stack->entries[0].to); | |
716 | for (i = 0; i < lbr_stack->nr; i++) | |
717 | printf("..... %2d: %016" PRIx64 "\n", | |
718 | (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from); | |
719 | } | |
720 | } | |
721 | ||
722 | static void callchain__printf(struct perf_evsel *evsel, | |
723 | struct perf_sample *sample) | |
724 | { | |
725 | unsigned int i; | |
726 | struct ip_callchain *callchain = sample->callchain; | |
727 | ||
728 | if (has_branch_callstack(evsel)) | |
729 | callchain__lbr_callstack_printf(sample); | |
730 | ||
731 | printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr); | |
640c03ce | 732 | |
384b6055 | 733 | for (i = 0; i < callchain->nr; i++) |
9486aa38 | 734 | printf("..... %2d: %016" PRIx64 "\n", |
384b6055 | 735 | i, callchain->ips[i]); |
c61e52ee FW |
736 | } |
737 | ||
b5387528 RAV |
738 | static void branch_stack__printf(struct perf_sample *sample) |
739 | { | |
740 | uint64_t i; | |
741 | ||
742 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
743 | ||
744 | for (i = 0; i < sample->branch_stack->nr; i++) | |
745 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
746 | i, sample->branch_stack->entries[i].from, | |
747 | sample->branch_stack->entries[i].to); | |
748 | } | |
749 | ||
0f6a3015 JO |
750 | static void regs_dump__printf(u64 mask, u64 *regs) |
751 | { | |
752 | unsigned rid, i = 0; | |
753 | ||
754 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
755 | u64 val = regs[i++]; | |
756 | ||
757 | printf(".... %-5s 0x%" PRIx64 "\n", | |
758 | perf_reg_name(rid), val); | |
759 | } | |
760 | } | |
761 | ||
6a21c0b5 SE |
762 | static const char *regs_abi[] = { |
763 | [PERF_SAMPLE_REGS_ABI_NONE] = "none", | |
764 | [PERF_SAMPLE_REGS_ABI_32] = "32-bit", | |
765 | [PERF_SAMPLE_REGS_ABI_64] = "64-bit", | |
766 | }; | |
767 | ||
768 | static inline const char *regs_dump_abi(struct regs_dump *d) | |
769 | { | |
770 | if (d->abi > PERF_SAMPLE_REGS_ABI_64) | |
771 | return "unknown"; | |
772 | ||
773 | return regs_abi[d->abi]; | |
774 | } | |
775 | ||
776 | static void regs__printf(const char *type, struct regs_dump *regs) | |
777 | { | |
778 | u64 mask = regs->mask; | |
779 | ||
780 | printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n", | |
781 | type, | |
782 | mask, | |
783 | regs_dump_abi(regs)); | |
784 | ||
785 | regs_dump__printf(mask, regs->regs); | |
786 | } | |
787 | ||
352ea45a | 788 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
789 | { |
790 | struct regs_dump *user_regs = &sample->user_regs; | |
791 | ||
6a21c0b5 SE |
792 | if (user_regs->regs) |
793 | regs__printf("user", user_regs); | |
794 | } | |
795 | ||
796 | static void regs_intr__printf(struct perf_sample *sample) | |
797 | { | |
798 | struct regs_dump *intr_regs = &sample->intr_regs; | |
799 | ||
800 | if (intr_regs->regs) | |
801 | regs__printf("intr", intr_regs); | |
0f6a3015 JO |
802 | } |
803 | ||
804 | static void stack_user__printf(struct stack_dump *dump) | |
805 | { | |
806 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
807 | dump->size, dump->offset); | |
808 | } | |
809 | ||
9fa8727a | 810 | static void perf_evlist__print_tstamp(struct perf_evlist *evlist, |
8115d60c | 811 | union perf_event *event, |
8d50e5b4 | 812 | struct perf_sample *sample) |
9c90a61c | 813 | { |
9fa8727a | 814 | u64 sample_type = __perf_evlist__combined_sample_type(evlist); |
7f3be652 | 815 | |
9c90a61c | 816 | if (event->header.type != PERF_RECORD_SAMPLE && |
9fa8727a | 817 | !perf_evlist__sample_id_all(evlist)) { |
9c90a61c ACM |
818 | fputs("-1 -1 ", stdout); |
819 | return; | |
820 | } | |
821 | ||
7f3be652 | 822 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
823 | printf("%u ", sample->cpu); |
824 | ||
7f3be652 | 825 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 826 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
827 | } |
828 | ||
9ede473c JO |
829 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
830 | { | |
831 | printf("... sample_read:\n"); | |
832 | ||
833 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
834 | printf("...... time enabled %016" PRIx64 "\n", | |
835 | sample->read.time_enabled); | |
836 | ||
837 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
838 | printf("...... time running %016" PRIx64 "\n", | |
839 | sample->read.time_running); | |
840 | ||
841 | if (read_format & PERF_FORMAT_GROUP) { | |
842 | u64 i; | |
843 | ||
844 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
845 | ||
846 | for (i = 0; i < sample->read.group.nr; i++) { | |
847 | struct sample_read_value *value; | |
848 | ||
849 | value = &sample->read.group.values[i]; | |
850 | printf("..... id %016" PRIx64 | |
851 | ", value %016" PRIx64 "\n", | |
852 | value->id, value->value); | |
853 | } | |
854 | } else | |
855 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
856 | sample->read.one.id, sample->read.one.value); | |
857 | } | |
858 | ||
9fa8727a | 859 | static void dump_event(struct perf_evlist *evlist, union perf_event *event, |
8d50e5b4 | 860 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
861 | { |
862 | if (!dump_trace) | |
863 | return; | |
864 | ||
9486aa38 ACM |
865 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
866 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
867 | |
868 | trace_event(event); | |
869 | ||
870 | if (sample) | |
9fa8727a | 871 | perf_evlist__print_tstamp(evlist, event, sample); |
9aefcab0 | 872 | |
9486aa38 | 873 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 874 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
875 | } |
876 | ||
0f6a3015 | 877 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 878 | struct perf_sample *sample) |
9aefcab0 | 879 | { |
7f3be652 ACM |
880 | u64 sample_type; |
881 | ||
ddbc24b7 ACM |
882 | if (!dump_trace) |
883 | return; | |
884 | ||
0ea590ae | 885 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 886 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 887 | sample->period, sample->addr); |
9aefcab0 | 888 | |
0f6a3015 | 889 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
890 | |
891 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
384b6055 | 892 | callchain__printf(evsel, sample); |
b5387528 | 893 | |
384b6055 | 894 | if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel)) |
b5387528 | 895 | branch_stack__printf(sample); |
0f6a3015 JO |
896 | |
897 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 898 | regs_user__printf(sample); |
0f6a3015 | 899 | |
6a21c0b5 SE |
900 | if (sample_type & PERF_SAMPLE_REGS_INTR) |
901 | regs_intr__printf(sample); | |
902 | ||
0f6a3015 JO |
903 | if (sample_type & PERF_SAMPLE_STACK_USER) |
904 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
905 | |
906 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
907 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
908 | |
909 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
910 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 911 | |
475eeab9 AK |
912 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
913 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
914 | ||
9ede473c JO |
915 | if (sample_type & PERF_SAMPLE_READ) |
916 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
917 | } |
918 | ||
54245fdc | 919 | static struct machine *machines__find_for_cpumode(struct machines *machines, |
ef89325f AH |
920 | union perf_event *event, |
921 | struct perf_sample *sample) | |
743eb868 ACM |
922 | { |
923 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
ad85ace0 | 924 | struct machine *machine; |
743eb868 | 925 | |
7c0f4a41 DA |
926 | if (perf_guest && |
927 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
928 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
929 | u32 pid; |
930 | ||
5c5e854b SE |
931 | if (event->header.type == PERF_RECORD_MMAP |
932 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
933 | pid = event->mmap.pid; |
934 | else | |
ef89325f | 935 | pid = sample->pid; |
7fb0a5ee | 936 | |
54245fdc | 937 | machine = machines__find(machines, pid); |
ad85ace0 | 938 | if (!machine) |
54245fdc | 939 | machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID); |
ad85ace0 | 940 | return machine; |
7fb0a5ee | 941 | } |
743eb868 | 942 | |
54245fdc | 943 | return &machines->host; |
743eb868 ACM |
944 | } |
945 | ||
313e53b0 | 946 | static int deliver_sample_value(struct perf_evlist *evlist, |
e4caec0d JO |
947 | struct perf_tool *tool, |
948 | union perf_event *event, | |
949 | struct perf_sample *sample, | |
950 | struct sample_read_value *v, | |
951 | struct machine *machine) | |
952 | { | |
313e53b0 | 953 | struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id); |
e4caec0d | 954 | |
e4caec0d JO |
955 | if (sid) { |
956 | sample->id = v->id; | |
957 | sample->period = v->value - sid->period; | |
958 | sid->period = v->value; | |
959 | } | |
960 | ||
961 | if (!sid || sid->evsel == NULL) { | |
313e53b0 | 962 | ++evlist->stats.nr_unknown_id; |
e4caec0d JO |
963 | return 0; |
964 | } | |
965 | ||
966 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
967 | } | |
968 | ||
313e53b0 | 969 | static int deliver_sample_group(struct perf_evlist *evlist, |
e4caec0d JO |
970 | struct perf_tool *tool, |
971 | union perf_event *event, | |
972 | struct perf_sample *sample, | |
973 | struct machine *machine) | |
974 | { | |
975 | int ret = -EINVAL; | |
976 | u64 i; | |
977 | ||
978 | for (i = 0; i < sample->read.group.nr; i++) { | |
313e53b0 | 979 | ret = deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
980 | &sample->read.group.values[i], |
981 | machine); | |
982 | if (ret) | |
983 | break; | |
984 | } | |
985 | ||
986 | return ret; | |
987 | } | |
988 | ||
989 | static int | |
313e53b0 | 990 | perf_evlist__deliver_sample(struct perf_evlist *evlist, |
e4caec0d JO |
991 | struct perf_tool *tool, |
992 | union perf_event *event, | |
993 | struct perf_sample *sample, | |
994 | struct perf_evsel *evsel, | |
995 | struct machine *machine) | |
996 | { | |
997 | /* We know evsel != NULL. */ | |
998 | u64 sample_type = evsel->attr.sample_type; | |
999 | u64 read_format = evsel->attr.read_format; | |
1000 | ||
1001 | /* Standard sample delievery. */ | |
1002 | if (!(sample_type & PERF_SAMPLE_READ)) | |
1003 | return tool->sample(tool, event, sample, evsel, machine); | |
1004 | ||
1005 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
1006 | if (read_format & PERF_FORMAT_GROUP) | |
313e53b0 | 1007 | return deliver_sample_group(evlist, tool, event, sample, |
e4caec0d JO |
1008 | machine); |
1009 | else | |
313e53b0 | 1010 | return deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
1011 | &sample->read.one, machine); |
1012 | } | |
1013 | ||
d10eb1eb ACM |
1014 | static int machines__deliver_event(struct machines *machines, |
1015 | struct perf_evlist *evlist, | |
1016 | union perf_event *event, | |
1017 | struct perf_sample *sample, | |
1018 | struct perf_tool *tool, u64 file_offset) | |
cbf41645 | 1019 | { |
9e69c210 | 1020 | struct perf_evsel *evsel; |
743eb868 | 1021 | struct machine *machine; |
9e69c210 | 1022 | |
9fa8727a | 1023 | dump_event(evlist, event, file_offset, sample); |
532e7269 | 1024 | |
313e53b0 | 1025 | evsel = perf_evlist__id2evsel(evlist, sample->id); |
7b27509f | 1026 | |
fa713a4e | 1027 | machine = machines__find_for_cpumode(machines, event, sample); |
743eb868 | 1028 | |
cbf41645 TG |
1029 | switch (event->header.type) { |
1030 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 1031 | dump_sample(evsel, event, sample); |
9e69c210 | 1032 | if (evsel == NULL) { |
313e53b0 | 1033 | ++evlist->stats.nr_unknown_id; |
6782206b | 1034 | return 0; |
9e69c210 | 1035 | } |
0c095715 | 1036 | if (machine == NULL) { |
313e53b0 | 1037 | ++evlist->stats.nr_unprocessable_samples; |
6782206b | 1038 | return 0; |
0c095715 | 1039 | } |
313e53b0 | 1040 | return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine); |
cbf41645 | 1041 | case PERF_RECORD_MMAP: |
45694aa7 | 1042 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
1043 | case PERF_RECORD_MMAP2: |
1044 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 1045 | case PERF_RECORD_COMM: |
45694aa7 | 1046 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1047 | case PERF_RECORD_FORK: |
45694aa7 | 1048 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1049 | case PERF_RECORD_EXIT: |
45694aa7 | 1050 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1051 | case PERF_RECORD_LOST: |
45694aa7 | 1052 | if (tool->lost == perf_event__process_lost) |
313e53b0 | 1053 | evlist->stats.total_lost += event->lost.lost; |
45694aa7 | 1054 | return tool->lost(tool, event, sample, machine); |
c4937a91 KL |
1055 | case PERF_RECORD_LOST_SAMPLES: |
1056 | if (tool->lost_samples == perf_event__process_lost_samples) | |
1057 | evlist->stats.total_lost_samples += event->lost_samples.lost; | |
1058 | return tool->lost_samples(tool, event, sample, machine); | |
cbf41645 | 1059 | case PERF_RECORD_READ: |
45694aa7 | 1060 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1061 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1062 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1063 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1064 | return tool->unthrottle(tool, event, sample, machine); |
4a96f7a0 AH |
1065 | case PERF_RECORD_AUX: |
1066 | return tool->aux(tool, event, sample, machine); | |
0ad21f68 AH |
1067 | case PERF_RECORD_ITRACE_START: |
1068 | return tool->itrace_start(tool, event, sample, machine); | |
cbf41645 | 1069 | default: |
313e53b0 | 1070 | ++evlist->stats.nr_unknown_events; |
cbf41645 TG |
1071 | return -1; |
1072 | } | |
1073 | } | |
1074 | ||
c446870d AH |
1075 | static int perf_session__deliver_event(struct perf_session *session, |
1076 | union perf_event *event, | |
1077 | struct perf_sample *sample, | |
1078 | struct perf_tool *tool, | |
1079 | u64 file_offset) | |
1080 | { | |
1081 | int ret; | |
1082 | ||
1083 | ret = auxtrace__process_event(session, event, sample, tool); | |
1084 | if (ret < 0) | |
1085 | return ret; | |
1086 | if (ret > 0) | |
1087 | return 0; | |
1088 | ||
1089 | return machines__deliver_event(&session->machines, session->evlist, | |
1090 | event, sample, tool, file_offset); | |
1091 | } | |
1092 | ||
d5652d86 AH |
1093 | static s64 perf_session__process_user_event(struct perf_session *session, |
1094 | union perf_event *event, | |
d5652d86 | 1095 | u64 file_offset) |
06aae590 | 1096 | { |
d704ebda | 1097 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1098 | struct perf_tool *tool = session->tool; |
cc9784bd | 1099 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
1100 | int err; |
1101 | ||
9fa8727a | 1102 | dump_event(session->evlist, event, file_offset, NULL); |
06aae590 | 1103 | |
cbf41645 | 1104 | /* These events are processed right away */ |
06aae590 | 1105 | switch (event->header.type) { |
2c46dbb5 | 1106 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1107 | err = tool->attr(tool, event, &session->evlist); |
cfe1c414 | 1108 | if (err == 0) { |
7b56cce2 | 1109 | perf_session__set_id_hdr_size(session); |
cfe1c414 AH |
1110 | perf_session__set_comm_exec(session); |
1111 | } | |
10d0f086 | 1112 | return err; |
f67697bd JO |
1113 | case PERF_RECORD_HEADER_EVENT_TYPE: |
1114 | /* | |
1115 | * Depreceated, but we need to handle it for sake | |
1116 | * of old data files create in pipe mode. | |
1117 | */ | |
1118 | return 0; | |
9215545e TZ |
1119 | case PERF_RECORD_HEADER_TRACING_DATA: |
1120 | /* setup for reading amidst mmap */ | |
cc9784bd | 1121 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 1122 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1123 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1124 | return tool->build_id(tool, event, session); |
d6b17beb | 1125 | case PERF_RECORD_FINISHED_ROUND: |
d704ebda | 1126 | return tool->finished_round(tool, event, oe); |
3c659eed AH |
1127 | case PERF_RECORD_ID_INDEX: |
1128 | return tool->id_index(tool, event, session); | |
a16ac023 AH |
1129 | case PERF_RECORD_AUXTRACE_INFO: |
1130 | return tool->auxtrace_info(tool, event, session); | |
1131 | case PERF_RECORD_AUXTRACE: | |
1132 | /* setup for reading amidst mmap */ | |
1133 | lseek(fd, file_offset + event->header.size, SEEK_SET); | |
1134 | return tool->auxtrace(tool, event, session); | |
e9bf54d2 | 1135 | case PERF_RECORD_AUXTRACE_ERROR: |
85ed4729 | 1136 | perf_session__auxtrace_error_inc(session, event); |
e9bf54d2 | 1137 | return tool->auxtrace_error(tool, event, session); |
06aae590 | 1138 | default: |
ba74f064 | 1139 | return -EINVAL; |
06aae590 | 1140 | } |
ba74f064 TG |
1141 | } |
1142 | ||
a293829d AH |
1143 | int perf_session__deliver_synth_event(struct perf_session *session, |
1144 | union perf_event *event, | |
b7b61cbe | 1145 | struct perf_sample *sample) |
a293829d | 1146 | { |
fa713a4e | 1147 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1148 | struct perf_tool *tool = session->tool; |
fa713a4e ACM |
1149 | |
1150 | events_stats__inc(&evlist->stats, event->header.type); | |
a293829d AH |
1151 | |
1152 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1153 | return perf_session__process_user_event(session, event, 0); |
a293829d | 1154 | |
fa713a4e | 1155 | return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0); |
a293829d AH |
1156 | } |
1157 | ||
268fb20f JO |
1158 | static void event_swap(union perf_event *event, bool sample_id_all) |
1159 | { | |
1160 | perf_event__swap_op swap; | |
1161 | ||
1162 | swap = perf_event__swap_ops[event->header.type]; | |
1163 | if (swap) | |
1164 | swap(event, sample_id_all); | |
1165 | } | |
1166 | ||
5a52f33a AH |
1167 | int perf_session__peek_event(struct perf_session *session, off_t file_offset, |
1168 | void *buf, size_t buf_sz, | |
1169 | union perf_event **event_ptr, | |
1170 | struct perf_sample *sample) | |
1171 | { | |
1172 | union perf_event *event; | |
1173 | size_t hdr_sz, rest; | |
1174 | int fd; | |
1175 | ||
1176 | if (session->one_mmap && !session->header.needs_swap) { | |
1177 | event = file_offset - session->one_mmap_offset + | |
1178 | session->one_mmap_addr; | |
1179 | goto out_parse_sample; | |
1180 | } | |
1181 | ||
1182 | if (perf_data_file__is_pipe(session->file)) | |
1183 | return -1; | |
1184 | ||
1185 | fd = perf_data_file__fd(session->file); | |
1186 | hdr_sz = sizeof(struct perf_event_header); | |
1187 | ||
1188 | if (buf_sz < hdr_sz) | |
1189 | return -1; | |
1190 | ||
1191 | if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 || | |
554e92ed | 1192 | readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz) |
5a52f33a AH |
1193 | return -1; |
1194 | ||
1195 | event = (union perf_event *)buf; | |
1196 | ||
1197 | if (session->header.needs_swap) | |
1198 | perf_event_header__bswap(&event->header); | |
1199 | ||
554e92ed | 1200 | if (event->header.size < hdr_sz || event->header.size > buf_sz) |
5a52f33a AH |
1201 | return -1; |
1202 | ||
1203 | rest = event->header.size - hdr_sz; | |
1204 | ||
554e92ed | 1205 | if (readn(fd, buf, rest) != (ssize_t)rest) |
5a52f33a AH |
1206 | return -1; |
1207 | ||
1208 | if (session->header.needs_swap) | |
1209 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); | |
1210 | ||
1211 | out_parse_sample: | |
1212 | ||
1213 | if (sample && event->header.type < PERF_RECORD_USER_TYPE_START && | |
1214 | perf_evlist__parse_sample(session->evlist, event, sample)) | |
1215 | return -1; | |
1216 | ||
1217 | *event_ptr = event; | |
1218 | ||
1219 | return 0; | |
1220 | } | |
1221 | ||
d5652d86 | 1222 | static s64 perf_session__process_event(struct perf_session *session, |
b7b61cbe | 1223 | union perf_event *event, u64 file_offset) |
ba74f064 | 1224 | { |
313e53b0 | 1225 | struct perf_evlist *evlist = session->evlist; |
9870d780 | 1226 | struct perf_tool *tool = session->tool; |
8d50e5b4 | 1227 | struct perf_sample sample; |
ba74f064 TG |
1228 | int ret; |
1229 | ||
268fb20f | 1230 | if (session->header.needs_swap) |
313e53b0 | 1231 | event_swap(event, perf_evlist__sample_id_all(evlist)); |
ba74f064 TG |
1232 | |
1233 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1234 | return -EINVAL; | |
1235 | ||
313e53b0 | 1236 | events_stats__inc(&evlist->stats, event->header.type); |
ba74f064 TG |
1237 | |
1238 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1239 | return perf_session__process_user_event(session, event, file_offset); |
cbf41645 | 1240 | |
3dfc2c0a TG |
1241 | /* |
1242 | * For all kernel events we get the sample data | |
1243 | */ | |
313e53b0 | 1244 | ret = perf_evlist__parse_sample(evlist, event, &sample); |
5538beca FW |
1245 | if (ret) |
1246 | return ret; | |
3dfc2c0a | 1247 | |
0a8cb85c | 1248 | if (tool->ordered_events) { |
b7b61cbe | 1249 | ret = perf_session__queue_event(session, event, &sample, file_offset); |
cbf41645 TG |
1250 | if (ret != -ETIME) |
1251 | return ret; | |
1252 | } | |
1253 | ||
c446870d AH |
1254 | return perf_session__deliver_event(session, event, &sample, tool, |
1255 | file_offset); | |
06aae590 ACM |
1256 | } |
1257 | ||
316c7136 | 1258 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1259 | { |
316c7136 ACM |
1260 | hdr->type = bswap_32(hdr->type); |
1261 | hdr->misc = bswap_16(hdr->misc); | |
1262 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1263 | } |
1264 | ||
b424eba2 ACM |
1265 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1266 | { | |
1fcb8768 | 1267 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1268 | } |
1269 | ||
316c7136 | 1270 | static struct thread *perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1271 | { |
1fcb8768 | 1272 | struct thread *thread; |
06aae590 | 1273 | |
1fcb8768 | 1274 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1275 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 ACM |
1276 | pr_err("problem inserting idle task.\n"); |
1277 | thread = NULL; | |
1278 | } | |
1279 | ||
1280 | return thread; | |
1281 | } | |
1282 | ||
9870d780 | 1283 | static void perf_session__warn_about_errors(const struct perf_session *session) |
11095994 | 1284 | { |
9870d780 ACM |
1285 | const struct events_stats *stats = &session->evlist->stats; |
1286 | const struct ordered_events *oe = &session->ordered_events; | |
1287 | ||
1288 | if (session->tool->lost == perf_event__process_lost && | |
ccda068f | 1289 | stats->nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1290 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1291 | "Check IO/CPU overload!\n\n", | |
ccda068f ACM |
1292 | stats->nr_events[0], |
1293 | stats->nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1294 | } |
1295 | ||
c4937a91 KL |
1296 | if (session->tool->lost_samples == perf_event__process_lost_samples) { |
1297 | double drop_rate; | |
1298 | ||
1299 | drop_rate = (double)stats->total_lost_samples / | |
1300 | (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples); | |
1301 | if (drop_rate > 0.05) { | |
1302 | ui__warning("Processed %lu samples and lost %3.2f%% samples!\n\n", | |
1303 | stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples, | |
1304 | drop_rate * 100.0); | |
1305 | } | |
1306 | } | |
1307 | ||
ccda068f | 1308 | if (stats->nr_unknown_events != 0) { |
11095994 ACM |
1309 | ui__warning("Found %u unknown events!\n\n" |
1310 | "Is this an older tool processing a perf.data " | |
1311 | "file generated by a more recent tool?\n\n" | |
1312 | "If that is not the case, consider " | |
1313 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f | 1314 | stats->nr_unknown_events); |
11095994 ACM |
1315 | } |
1316 | ||
ccda068f | 1317 | if (stats->nr_unknown_id != 0) { |
9e69c210 | 1318 | ui__warning("%u samples with id not present in the header\n", |
ccda068f | 1319 | stats->nr_unknown_id); |
9e69c210 ACM |
1320 | } |
1321 | ||
ccda068f | 1322 | if (stats->nr_invalid_chains != 0) { |
75be989a ACM |
1323 | ui__warning("Found invalid callchains!\n\n" |
1324 | "%u out of %u events were discarded for this reason.\n\n" | |
1325 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f ACM |
1326 | stats->nr_invalid_chains, |
1327 | stats->nr_events[PERF_RECORD_SAMPLE]); | |
75be989a | 1328 | } |
0c095715 | 1329 | |
ccda068f | 1330 | if (stats->nr_unprocessable_samples != 0) { |
0c095715 JR |
1331 | ui__warning("%u unprocessable samples recorded.\n" |
1332 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
ccda068f | 1333 | stats->nr_unprocessable_samples); |
0c095715 | 1334 | } |
f61ff6c0 | 1335 | |
9870d780 ACM |
1336 | if (oe->nr_unordered_events != 0) |
1337 | ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events); | |
85ed4729 AH |
1338 | |
1339 | events_stats__auxtrace_error_warn(stats); | |
11095994 ACM |
1340 | } |
1341 | ||
8dc58101 TZ |
1342 | volatile int session_done; |
1343 | ||
b7b61cbe | 1344 | static int __perf_session__process_pipe_events(struct perf_session *session) |
8dc58101 | 1345 | { |
fa713a4e | 1346 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1347 | struct perf_tool *tool = session->tool; |
316c7136 | 1348 | int fd = perf_data_file__fd(session->file); |
444d2866 SE |
1349 | union perf_event *event; |
1350 | uint32_t size, cur_size = 0; | |
1351 | void *buf = NULL; | |
d5652d86 | 1352 | s64 skip = 0; |
8dc58101 | 1353 | u64 head; |
727ebd54 | 1354 | ssize_t err; |
8dc58101 TZ |
1355 | void *p; |
1356 | ||
45694aa7 | 1357 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1358 | |
1359 | head = 0; | |
444d2866 SE |
1360 | cur_size = sizeof(union perf_event); |
1361 | ||
1362 | buf = malloc(cur_size); | |
1363 | if (!buf) | |
1364 | return -errno; | |
8dc58101 | 1365 | more: |
444d2866 | 1366 | event = buf; |
cc9784bd | 1367 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1368 | if (err <= 0) { |
1369 | if (err == 0) | |
1370 | goto done; | |
1371 | ||
1372 | pr_err("failed to read event header\n"); | |
1373 | goto out_err; | |
1374 | } | |
1375 | ||
316c7136 | 1376 | if (session->header.needs_swap) |
444d2866 | 1377 | perf_event_header__bswap(&event->header); |
8dc58101 | 1378 | |
444d2866 | 1379 | size = event->header.size; |
27389d78 AH |
1380 | if (size < sizeof(struct perf_event_header)) { |
1381 | pr_err("bad event header size\n"); | |
1382 | goto out_err; | |
1383 | } | |
8dc58101 | 1384 | |
444d2866 SE |
1385 | if (size > cur_size) { |
1386 | void *new = realloc(buf, size); | |
1387 | if (!new) { | |
1388 | pr_err("failed to allocate memory to read event\n"); | |
1389 | goto out_err; | |
1390 | } | |
1391 | buf = new; | |
1392 | cur_size = size; | |
1393 | event = buf; | |
1394 | } | |
1395 | p = event; | |
8dc58101 TZ |
1396 | p += sizeof(struct perf_event_header); |
1397 | ||
794e43b5 | 1398 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1399 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1400 | if (err <= 0) { |
1401 | if (err == 0) { | |
1402 | pr_err("unexpected end of event stream\n"); | |
1403 | goto done; | |
1404 | } | |
8dc58101 | 1405 | |
794e43b5 TZ |
1406 | pr_err("failed to read event data\n"); |
1407 | goto out_err; | |
1408 | } | |
8dc58101 TZ |
1409 | } |
1410 | ||
b7b61cbe | 1411 | if ((skip = perf_session__process_event(session, event, head)) < 0) { |
9389a460 | 1412 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1413 | head, event->header.size, event->header.type); |
9389a460 JO |
1414 | err = -EINVAL; |
1415 | goto out_err; | |
8dc58101 TZ |
1416 | } |
1417 | ||
1418 | head += size; | |
1419 | ||
8dc58101 TZ |
1420 | if (skip > 0) |
1421 | head += skip; | |
1422 | ||
1423 | if (!session_done()) | |
1424 | goto more; | |
1425 | done: | |
8c16b649 | 1426 | /* do the final flush for ordered samples */ |
b7b61cbe | 1427 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
1428 | if (err) |
1429 | goto out_err; | |
1430 | err = auxtrace__flush_events(session, tool); | |
8dc58101 | 1431 | out_err: |
444d2866 | 1432 | free(buf); |
9870d780 | 1433 | perf_session__warn_about_errors(session); |
adc56ed1 | 1434 | ordered_events__free(&session->ordered_events); |
c446870d | 1435 | auxtrace__free_events(session); |
8dc58101 TZ |
1436 | return err; |
1437 | } | |
1438 | ||
998bedc8 FW |
1439 | static union perf_event * |
1440 | fetch_mmaped_event(struct perf_session *session, | |
1441 | u64 head, size_t mmap_size, char *buf) | |
1442 | { | |
1443 | union perf_event *event; | |
1444 | ||
1445 | /* | |
1446 | * Ensure we have enough space remaining to read | |
1447 | * the size of the event in the headers. | |
1448 | */ | |
1449 | if (head + sizeof(event->header) > mmap_size) | |
1450 | return NULL; | |
1451 | ||
1452 | event = (union perf_event *)(buf + head); | |
1453 | ||
1454 | if (session->header.needs_swap) | |
1455 | perf_event_header__bswap(&event->header); | |
1456 | ||
27389d78 AH |
1457 | if (head + event->header.size > mmap_size) { |
1458 | /* We're not fetching the event so swap back again */ | |
1459 | if (session->header.needs_swap) | |
1460 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1461 | return NULL; |
27389d78 | 1462 | } |
998bedc8 FW |
1463 | |
1464 | return event; | |
1465 | } | |
1466 | ||
35d48ddf DM |
1467 | /* |
1468 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1469 | * slices. On 32bit we use 32MB. | |
1470 | */ | |
1471 | #if BITS_PER_LONG == 64 | |
1472 | #define MMAP_SIZE ULLONG_MAX | |
1473 | #define NUM_MMAPS 1 | |
1474 | #else | |
1475 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1476 | #define NUM_MMAPS 128 | |
1477 | #endif | |
1478 | ||
4ac30cf7 NK |
1479 | static int __perf_session__process_events(struct perf_session *session, |
1480 | u64 data_offset, u64 data_size, | |
b7b61cbe | 1481 | u64 file_size) |
06aae590 | 1482 | { |
fa713a4e | 1483 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1484 | struct perf_tool *tool = session->tool; |
cc9784bd | 1485 | int fd = perf_data_file__fd(session->file); |
d5652d86 | 1486 | u64 head, page_offset, file_offset, file_pos, size; |
fe174207 | 1487 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1488 | size_t mmap_size; |
35d48ddf | 1489 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1490 | union perf_event *event; |
4d3001fd | 1491 | struct ui_progress prog; |
d5652d86 | 1492 | s64 skip; |
0331ee0c | 1493 | |
45694aa7 | 1494 | perf_tool__fill_defaults(tool); |
06aae590 | 1495 | |
0331ee0c TG |
1496 | page_offset = page_size * (data_offset / page_size); |
1497 | file_offset = page_offset; | |
1498 | head = data_offset - page_offset; | |
06aae590 | 1499 | |
b314e5cf | 1500 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1501 | file_size = data_offset + data_size; |
1502 | ||
4d3001fd | 1503 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1504 | |
35d48ddf | 1505 | mmap_size = MMAP_SIZE; |
919d86d3 | 1506 | if (mmap_size > file_size) { |
55b44629 | 1507 | mmap_size = file_size; |
919d86d3 AH |
1508 | session->one_mmap = true; |
1509 | } | |
55b44629 | 1510 | |
fe174207 TG |
1511 | memset(mmaps, 0, sizeof(mmaps)); |
1512 | ||
ba21594c ACM |
1513 | mmap_prot = PROT_READ; |
1514 | mmap_flags = MAP_SHARED; | |
1515 | ||
0331ee0c | 1516 | if (session->header.needs_swap) { |
ba21594c ACM |
1517 | mmap_prot |= PROT_WRITE; |
1518 | mmap_flags = MAP_PRIVATE; | |
1519 | } | |
06aae590 | 1520 | remap: |
cc9784bd | 1521 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1522 | file_offset); |
06aae590 ACM |
1523 | if (buf == MAP_FAILED) { |
1524 | pr_err("failed to mmap file\n"); | |
1525 | err = -errno; | |
1526 | goto out_err; | |
1527 | } | |
fe174207 TG |
1528 | mmaps[map_idx] = buf; |
1529 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1530 | file_pos = file_offset + head; |
919d86d3 AH |
1531 | if (session->one_mmap) { |
1532 | session->one_mmap_addr = buf; | |
1533 | session->one_mmap_offset = file_offset; | |
1534 | } | |
06aae590 ACM |
1535 | |
1536 | more: | |
998bedc8 FW |
1537 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1538 | if (!event) { | |
fe174207 TG |
1539 | if (mmaps[map_idx]) { |
1540 | munmap(mmaps[map_idx], mmap_size); | |
1541 | mmaps[map_idx] = NULL; | |
1542 | } | |
06aae590 | 1543 | |
0331ee0c TG |
1544 | page_offset = page_size * (head / page_size); |
1545 | file_offset += page_offset; | |
1546 | head -= page_offset; | |
06aae590 ACM |
1547 | goto remap; |
1548 | } | |
1549 | ||
1550 | size = event->header.size; | |
1551 | ||
27389d78 | 1552 | if (size < sizeof(struct perf_event_header) || |
b7b61cbe | 1553 | (skip = perf_session__process_event(session, event, file_pos)) < 0) { |
9389a460 JO |
1554 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1555 | file_offset + head, event->header.size, | |
1556 | event->header.type); | |
1557 | err = -EINVAL; | |
1558 | goto out_err; | |
06aae590 ACM |
1559 | } |
1560 | ||
6f917c70 AH |
1561 | if (skip) |
1562 | size += skip; | |
1563 | ||
06aae590 | 1564 | head += size; |
d6513281 | 1565 | file_pos += size; |
06aae590 | 1566 | |
4d3001fd | 1567 | ui_progress__update(&prog, size); |
55b44629 | 1568 | |
33e940a2 | 1569 | if (session_done()) |
8c16b649 | 1570 | goto out; |
33e940a2 | 1571 | |
d6513281 | 1572 | if (file_pos < file_size) |
06aae590 | 1573 | goto more; |
d6513281 | 1574 | |
8c16b649 | 1575 | out: |
c61e52ee | 1576 | /* do the final flush for ordered samples */ |
b7b61cbe | 1577 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
1578 | if (err) |
1579 | goto out_err; | |
1580 | err = auxtrace__flush_events(session, tool); | |
06aae590 | 1581 | out_err: |
a5580f3e | 1582 | ui_progress__finish(); |
9870d780 | 1583 | perf_session__warn_about_errors(session); |
adc56ed1 | 1584 | ordered_events__free(&session->ordered_events); |
c446870d | 1585 | auxtrace__free_events(session); |
919d86d3 | 1586 | session->one_mmap = false; |
06aae590 ACM |
1587 | return err; |
1588 | } | |
27295592 | 1589 | |
b7b61cbe | 1590 | int perf_session__process_events(struct perf_session *session) |
6122e4e4 | 1591 | { |
316c7136 | 1592 | u64 size = perf_data_file__size(session->file); |
6122e4e4 ACM |
1593 | int err; |
1594 | ||
316c7136 | 1595 | if (perf_session__register_idle_thread(session) == NULL) |
6122e4e4 ACM |
1596 | return -ENOMEM; |
1597 | ||
316c7136 ACM |
1598 | if (!perf_data_file__is_pipe(session->file)) |
1599 | err = __perf_session__process_events(session, | |
1600 | session->header.data_offset, | |
b7b61cbe | 1601 | session->header.data_size, size); |
8dc58101 | 1602 | else |
b7b61cbe | 1603 | err = __perf_session__process_pipe_events(session); |
88ca895d | 1604 | |
6122e4e4 ACM |
1605 | return err; |
1606 | } | |
1607 | ||
7f3be652 | 1608 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1609 | { |
93ea01c2 DA |
1610 | struct perf_evsel *evsel; |
1611 | ||
0050f7aa | 1612 | evlist__for_each(session->evlist, evsel) { |
93ea01c2 DA |
1613 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) |
1614 | return true; | |
27295592 ACM |
1615 | } |
1616 | ||
93ea01c2 DA |
1617 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1618 | return false; | |
27295592 | 1619 | } |
56b03f3c | 1620 | |
743eb868 ACM |
1621 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1622 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1623 | { |
1624 | char *bracket; | |
9de89fe7 | 1625 | enum map_type i; |
a1645ce1 ZY |
1626 | struct ref_reloc_sym *ref; |
1627 | ||
1628 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1629 | if (ref == NULL) | |
1630 | return -ENOMEM; | |
56b03f3c | 1631 | |
a1645ce1 ZY |
1632 | ref->name = strdup(symbol_name); |
1633 | if (ref->name == NULL) { | |
1634 | free(ref); | |
56b03f3c | 1635 | return -ENOMEM; |
a1645ce1 | 1636 | } |
56b03f3c | 1637 | |
a1645ce1 | 1638 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1639 | if (bracket) |
1640 | *bracket = '\0'; | |
1641 | ||
a1645ce1 | 1642 | ref->addr = addr; |
9de89fe7 ACM |
1643 | |
1644 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 | 1645 | struct kmap *kmap = map__kmap(maps[i]); |
ba92732e WN |
1646 | |
1647 | if (!kmap) | |
1648 | continue; | |
a1645ce1 | 1649 | kmap->ref_reloc_sym = ref; |
9de89fe7 ACM |
1650 | } |
1651 | ||
56b03f3c ACM |
1652 | return 0; |
1653 | } | |
1f626bc3 | 1654 | |
316c7136 | 1655 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 1656 | { |
316c7136 | 1657 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 1658 | } |
f869097e | 1659 | |
316c7136 | 1660 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 1661 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1662 | { |
316c7136 | 1663 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 1664 | } |
e248de33 ACM |
1665 | |
1666 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1667 | { | |
c446870d AH |
1668 | size_t ret; |
1669 | const char *msg = ""; | |
1670 | ||
1671 | if (perf_header__has_feat(&session->header, HEADER_AUXTRACE)) | |
1672 | msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)"; | |
1673 | ||
1674 | ret = fprintf(fp, "Aggregated stats:%s\n", msg); | |
e248de33 | 1675 | |
75be989a | 1676 | ret += events_stats__fprintf(&session->evlist->stats, fp); |
e248de33 ACM |
1677 | return ret; |
1678 | } | |
c0230b2b | 1679 | |
b424eba2 ACM |
1680 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1681 | { | |
1682 | /* | |
1683 | * FIXME: Here we have to actually print all the machines in this | |
1684 | * session, not just the host... | |
1685 | */ | |
876650e6 | 1686 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1687 | } |
1688 | ||
9cbdb702 DA |
1689 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1690 | unsigned int type) | |
1691 | { | |
1692 | struct perf_evsel *pos; | |
1693 | ||
0050f7aa | 1694 | evlist__for_each(session->evlist, pos) { |
9cbdb702 DA |
1695 | if (pos->attr.type == type) |
1696 | return pos; | |
1697 | } | |
1698 | return NULL; | |
1699 | } | |
1700 | ||
a2cb3cf2 | 1701 | void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, |
cc22e575 | 1702 | struct addr_location *al, |
307cbb92 | 1703 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b | 1704 | { |
c0230b2b | 1705 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1706 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1707 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1708 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1709 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 | 1710 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
cc8fae1d | 1711 | int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; |
b0b35f01 | 1712 | char s = print_oneline ? ' ' : '\t'; |
c0230b2b | 1713 | |
c0230b2b | 1714 | if (symbol_conf.use_callchain && sample->callchain) { |
a2cb3cf2 | 1715 | struct addr_location node_al; |
c0230b2b | 1716 | |
cc8b7c2b ACM |
1717 | if (thread__resolve_callchain(al->thread, evsel, |
1718 | sample, NULL, NULL, | |
1719 | PERF_MAX_STACK_DEPTH) != 0) { | |
c0230b2b DA |
1720 | if (verbose) |
1721 | error("Failed to resolve callchain. Skipping\n"); | |
1722 | return; | |
1723 | } | |
47260645 | 1724 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1725 | |
a2cb3cf2 AH |
1726 | if (print_symoffset) |
1727 | node_al = *al; | |
1728 | ||
307cbb92 | 1729 | while (stack_depth) { |
a4eb24a4 AH |
1730 | u64 addr = 0; |
1731 | ||
47260645 | 1732 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1733 | if (!node) |
1734 | break; | |
1735 | ||
d2ff1b14 DA |
1736 | if (node->sym && node->sym->ignore) |
1737 | goto next; | |
1738 | ||
a6ffaf91 | 1739 | if (print_ip) |
b0b35f01 | 1740 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1741 | |
a4eb24a4 AH |
1742 | if (node->map) |
1743 | addr = node->map->map_ip(node->map, node->ip); | |
1744 | ||
787bef17 | 1745 | if (print_sym) { |
547a92e0 | 1746 | printf(" "); |
251f426f | 1747 | if (print_symoffset) { |
a4eb24a4 | 1748 | node_al.addr = addr; |
a2cb3cf2 AH |
1749 | node_al.map = node->map; |
1750 | symbol__fprintf_symname_offs(node->sym, &node_al, stdout); | |
251f426f DA |
1751 | } else |
1752 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1753 | } |
251f426f | 1754 | |
610723f2 | 1755 | if (print_dso) { |
547a92e0 | 1756 | printf(" ("); |
52deff71 | 1757 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1758 | printf(")"); |
787bef17 | 1759 | } |
b0b35f01 | 1760 | |
cc8fae1d AH |
1761 | if (print_srcline) |
1762 | map__fprintf_srcline(node->map, addr, "\n ", | |
1763 | stdout); | |
1764 | ||
b0b35f01 DA |
1765 | if (!print_oneline) |
1766 | printf("\n"); | |
c0230b2b | 1767 | |
307cbb92 | 1768 | stack_depth--; |
d2ff1b14 DA |
1769 | next: |
1770 | callchain_cursor_advance(&callchain_cursor); | |
c0230b2b DA |
1771 | } |
1772 | ||
1773 | } else { | |
a2cb3cf2 | 1774 | if (al->sym && al->sym->ignore) |
d2ff1b14 DA |
1775 | return; |
1776 | ||
a6ffaf91 DA |
1777 | if (print_ip) |
1778 | printf("%16" PRIx64, sample->ip); | |
1779 | ||
787bef17 | 1780 | if (print_sym) { |
547a92e0 | 1781 | printf(" "); |
a978f2ab | 1782 | if (print_symoffset) |
a2cb3cf2 | 1783 | symbol__fprintf_symname_offs(al->sym, al, |
a978f2ab AN |
1784 | stdout); |
1785 | else | |
a2cb3cf2 | 1786 | symbol__fprintf_symname(al->sym, stdout); |
610723f2 DA |
1787 | } |
1788 | ||
1789 | if (print_dso) { | |
547a92e0 | 1790 | printf(" ("); |
a2cb3cf2 | 1791 | map__fprintf_dsoname(al->map, stdout); |
547a92e0 | 1792 | printf(")"); |
787bef17 | 1793 | } |
cc8fae1d AH |
1794 | |
1795 | if (print_srcline) | |
1796 | map__fprintf_srcline(al->map, al->addr, "\n ", stdout); | |
c0230b2b DA |
1797 | } |
1798 | } | |
5d67be97 AB |
1799 | |
1800 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1801 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1802 | { | |
8bac41cb | 1803 | int i, err = -1; |
5d67be97 AB |
1804 | struct cpu_map *map; |
1805 | ||
1806 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1807 | struct perf_evsel *evsel; | |
1808 | ||
1809 | evsel = perf_session__find_first_evtype(session, i); | |
1810 | if (!evsel) | |
1811 | continue; | |
1812 | ||
1813 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1814 | pr_err("File does not contain CPU events. " | |
1815 | "Remove -c option to proceed.\n"); | |
1816 | return -1; | |
1817 | } | |
1818 | } | |
1819 | ||
1820 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1821 | if (map == NULL) { |
1822 | pr_err("Invalid cpu_list\n"); | |
1823 | return -1; | |
1824 | } | |
5d67be97 AB |
1825 | |
1826 | for (i = 0; i < map->nr; i++) { | |
1827 | int cpu = map->map[i]; | |
1828 | ||
1829 | if (cpu >= MAX_NR_CPUS) { | |
1830 | pr_err("Requested CPU %d too large. " | |
1831 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 1832 | goto out_delete_map; |
5d67be97 AB |
1833 | } |
1834 | ||
1835 | set_bit(cpu, cpu_bitmap); | |
1836 | } | |
1837 | ||
8bac41cb SF |
1838 | err = 0; |
1839 | ||
1840 | out_delete_map: | |
1841 | cpu_map__delete(map); | |
1842 | return err; | |
5d67be97 | 1843 | } |
fbe96f29 SE |
1844 | |
1845 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1846 | bool full) | |
1847 | { | |
1848 | struct stat st; | |
c5765ece | 1849 | int fd, ret; |
fbe96f29 SE |
1850 | |
1851 | if (session == NULL || fp == NULL) | |
1852 | return; | |
1853 | ||
c5765ece MI |
1854 | fd = perf_data_file__fd(session->file); |
1855 | ||
cc9784bd | 1856 | ret = fstat(fd, &st); |
fbe96f29 SE |
1857 | if (ret == -1) |
1858 | return; | |
1859 | ||
1860 | fprintf(fp, "# ========\n"); | |
1861 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1862 | perf_header__fprintf_info(session, fp, full); | |
1863 | fprintf(fp, "# ========\n#\n"); | |
1864 | } | |
da378962 ACM |
1865 | |
1866 | ||
1867 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1868 | const struct perf_evsel_str_handler *assocs, | |
1869 | size_t nr_assocs) | |
1870 | { | |
da378962 | 1871 | struct perf_evsel *evsel; |
da378962 ACM |
1872 | size_t i; |
1873 | int err; | |
1874 | ||
1875 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1876 | /* |
1877 | * Adding a handler for an event not in the session, | |
1878 | * just ignore it. | |
1879 | */ | |
1880 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1881 | if (evsel == NULL) |
ccf53eac | 1882 | continue; |
da378962 ACM |
1883 | |
1884 | err = -EEXIST; | |
744a9719 | 1885 | if (evsel->handler != NULL) |
ccf53eac | 1886 | goto out; |
744a9719 | 1887 | evsel->handler = assocs[i].handler; |
da378962 ACM |
1888 | } |
1889 | ||
1890 | err = 0; | |
1891 | out: | |
1892 | return err; | |
da378962 | 1893 | } |
3c659eed AH |
1894 | |
1895 | int perf_event__process_id_index(struct perf_tool *tool __maybe_unused, | |
1896 | union perf_event *event, | |
1897 | struct perf_session *session) | |
1898 | { | |
1899 | struct perf_evlist *evlist = session->evlist; | |
1900 | struct id_index_event *ie = &event->id_index; | |
1901 | size_t i, nr, max_nr; | |
1902 | ||
1903 | max_nr = (ie->header.size - sizeof(struct id_index_event)) / | |
1904 | sizeof(struct id_index_entry); | |
1905 | nr = ie->nr; | |
1906 | if (nr > max_nr) | |
1907 | return -EINVAL; | |
1908 | ||
1909 | if (dump_trace) | |
1910 | fprintf(stdout, " nr: %zu\n", nr); | |
1911 | ||
1912 | for (i = 0; i < nr; i++) { | |
1913 | struct id_index_entry *e = &ie->entries[i]; | |
1914 | struct perf_sample_id *sid; | |
1915 | ||
1916 | if (dump_trace) { | |
1917 | fprintf(stdout, " ... id: %"PRIu64, e->id); | |
1918 | fprintf(stdout, " idx: %"PRIu64, e->idx); | |
1919 | fprintf(stdout, " cpu: %"PRId64, e->cpu); | |
1920 | fprintf(stdout, " tid: %"PRId64"\n", e->tid); | |
1921 | } | |
1922 | ||
1923 | sid = perf_evlist__id2sid(evlist, e->id); | |
1924 | if (!sid) | |
1925 | return -ENOENT; | |
1926 | sid->idx = e->idx; | |
1927 | sid->cpu = e->cpu; | |
1928 | sid->tid = e->tid; | |
1929 | } | |
1930 | return 0; | |
1931 | } | |
1932 | ||
1933 | int perf_event__synthesize_id_index(struct perf_tool *tool, | |
1934 | perf_event__handler_t process, | |
1935 | struct perf_evlist *evlist, | |
1936 | struct machine *machine) | |
1937 | { | |
1938 | union perf_event *ev; | |
1939 | struct perf_evsel *evsel; | |
1940 | size_t nr = 0, i = 0, sz, max_nr, n; | |
1941 | int err; | |
1942 | ||
1943 | pr_debug2("Synthesizing id index\n"); | |
1944 | ||
1945 | max_nr = (UINT16_MAX - sizeof(struct id_index_event)) / | |
1946 | sizeof(struct id_index_entry); | |
1947 | ||
cba9b847 | 1948 | evlist__for_each(evlist, evsel) |
3c659eed AH |
1949 | nr += evsel->ids; |
1950 | ||
1951 | n = nr > max_nr ? max_nr : nr; | |
1952 | sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry); | |
1953 | ev = zalloc(sz); | |
1954 | if (!ev) | |
1955 | return -ENOMEM; | |
1956 | ||
1957 | ev->id_index.header.type = PERF_RECORD_ID_INDEX; | |
1958 | ev->id_index.header.size = sz; | |
1959 | ev->id_index.nr = n; | |
1960 | ||
cba9b847 | 1961 | evlist__for_each(evlist, evsel) { |
3c659eed AH |
1962 | u32 j; |
1963 | ||
1964 | for (j = 0; j < evsel->ids; j++) { | |
1965 | struct id_index_entry *e; | |
1966 | struct perf_sample_id *sid; | |
1967 | ||
1968 | if (i >= n) { | |
1969 | err = process(tool, ev, NULL, machine); | |
1970 | if (err) | |
1971 | goto out_err; | |
1972 | nr -= n; | |
1973 | i = 0; | |
1974 | } | |
1975 | ||
1976 | e = &ev->id_index.entries[i++]; | |
1977 | ||
1978 | e->id = evsel->id[j]; | |
1979 | ||
1980 | sid = perf_evlist__id2sid(evlist, e->id); | |
1981 | if (!sid) { | |
1982 | free(ev); | |
1983 | return -ENOENT; | |
1984 | } | |
1985 | ||
1986 | e->idx = sid->idx; | |
1987 | e->cpu = sid->cpu; | |
1988 | e->tid = sid->tid; | |
1989 | } | |
1990 | } | |
1991 | ||
1992 | sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry); | |
1993 | ev->id_index.header.size = sz; | |
1994 | ev->id_index.nr = nr; | |
1995 | ||
1996 | err = process(tool, ev, NULL, machine); | |
1997 | out_err: | |
1998 | free(ev); | |
1999 | ||
2000 | return err; | |
2001 | } |