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" |
7dbf4dcf | 17 | #include "vdso.h" |
94c744b6 ACM |
18 | |
19 | static int perf_session__open(struct perf_session *self, bool force) | |
20 | { | |
21 | struct stat input_stat; | |
22 | ||
8dc58101 TZ |
23 | if (!strcmp(self->filename, "-")) { |
24 | self->fd_pipe = true; | |
25 | self->fd = STDIN_FILENO; | |
26 | ||
d4339569 | 27 | if (perf_session__read_header(self) < 0) |
69996df4 | 28 | pr_err("incompatible file format (rerun with -v to learn more)"); |
8dc58101 TZ |
29 | |
30 | return 0; | |
31 | } | |
32 | ||
f887f301 | 33 | self->fd = open(self->filename, O_RDONLY); |
94c744b6 | 34 | if (self->fd < 0) { |
0f2c3de2 AI |
35 | int err = errno; |
36 | ||
37 | pr_err("failed to open %s: %s", self->filename, strerror(err)); | |
38 | if (err == ENOENT && !strcmp(self->filename, "perf.data")) | |
94c744b6 ACM |
39 | pr_err(" (try 'perf record' first)"); |
40 | pr_err("\n"); | |
41 | return -errno; | |
42 | } | |
43 | ||
44 | if (fstat(self->fd, &input_stat) < 0) | |
45 | goto out_close; | |
46 | ||
47 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { | |
48 | pr_err("file %s not owned by current user or root\n", | |
49 | self->filename); | |
50 | goto out_close; | |
51 | } | |
52 | ||
53 | if (!input_stat.st_size) { | |
54 | pr_info("zero-sized file (%s), nothing to do!\n", | |
55 | self->filename); | |
56 | goto out_close; | |
57 | } | |
58 | ||
d4339569 | 59 | if (perf_session__read_header(self) < 0) { |
69996df4 | 60 | pr_err("incompatible file format (rerun with -v to learn more)"); |
94c744b6 ACM |
61 | goto out_close; |
62 | } | |
63 | ||
c2a70653 ACM |
64 | if (!perf_evlist__valid_sample_type(self->evlist)) { |
65 | pr_err("non matching sample_type"); | |
66 | goto out_close; | |
67 | } | |
68 | ||
69 | if (!perf_evlist__valid_sample_id_all(self->evlist)) { | |
70 | pr_err("non matching sample_id_all"); | |
71 | goto out_close; | |
72 | } | |
73 | ||
9ede473c JO |
74 | if (!perf_evlist__valid_read_format(self->evlist)) { |
75 | pr_err("non matching read_format"); | |
76 | goto out_close; | |
77 | } | |
78 | ||
94c744b6 ACM |
79 | self->size = input_stat.st_size; |
80 | return 0; | |
81 | ||
82 | out_close: | |
83 | close(self->fd); | |
84 | self->fd = -1; | |
85 | return -1; | |
86 | } | |
87 | ||
7b56cce2 | 88 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 89 | { |
7b56cce2 ACM |
90 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
91 | ||
7b56cce2 | 92 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
93 | } |
94 | ||
a1645ce1 ZY |
95 | int perf_session__create_kernel_maps(struct perf_session *self) |
96 | { | |
876650e6 | 97 | int ret = machine__create_kernel_maps(&self->machines.host); |
a1645ce1 | 98 | |
a1645ce1 | 99 | if (ret >= 0) |
d118f8ba | 100 | ret = machines__create_guest_kernel_maps(&self->machines); |
a1645ce1 ZY |
101 | return ret; |
102 | } | |
103 | ||
076c6e45 ACM |
104 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
105 | { | |
876650e6 | 106 | machines__destroy_kernel_maps(&self->machines); |
076c6e45 ACM |
107 | } |
108 | ||
21ef97f0 IM |
109 | struct perf_session *perf_session__new(const char *filename, int mode, |
110 | bool force, bool repipe, | |
45694aa7 | 111 | struct perf_tool *tool) |
94c744b6 | 112 | { |
efad1415 RR |
113 | struct perf_session *self; |
114 | struct stat st; | |
115 | size_t len; | |
116 | ||
117 | if (!filename || !strlen(filename)) { | |
118 | if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) | |
119 | filename = "-"; | |
120 | else | |
121 | filename = "perf.data"; | |
122 | } | |
123 | ||
124 | len = strlen(filename); | |
125 | self = zalloc(sizeof(*self) + len); | |
94c744b6 ACM |
126 | |
127 | if (self == NULL) | |
128 | goto out; | |
129 | ||
94c744b6 | 130 | memcpy(self->filename, filename, len); |
454c407e | 131 | self->repipe = repipe; |
a1225dec | 132 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
020bb75a | 133 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
5c891f38 | 134 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
876650e6 | 135 | machines__init(&self->machines); |
94c744b6 | 136 | |
64abebf7 ACM |
137 | if (mode == O_RDONLY) { |
138 | if (perf_session__open(self, force) < 0) | |
139 | goto out_delete; | |
7b56cce2 | 140 | perf_session__set_id_hdr_size(self); |
64abebf7 ACM |
141 | } else if (mode == O_WRONLY) { |
142 | /* | |
143 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 144 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 ACM |
145 | */ |
146 | if (perf_session__create_kernel_maps(self) < 0) | |
147 | goto out_delete; | |
148 | } | |
d549c769 | 149 | |
45694aa7 | 150 | if (tool && tool->ordering_requires_timestamps && |
5e562474 | 151 | tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) { |
21ef97f0 | 152 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
45694aa7 | 153 | tool->ordered_samples = false; |
21ef97f0 IM |
154 | } |
155 | ||
94c744b6 ACM |
156 | out: |
157 | return self; | |
4aa65636 ACM |
158 | out_delete: |
159 | perf_session__delete(self); | |
160 | return NULL; | |
94c744b6 ACM |
161 | } |
162 | ||
b424eba2 ACM |
163 | static void perf_session__delete_dead_threads(struct perf_session *session) |
164 | { | |
876650e6 | 165 | machine__delete_dead_threads(&session->machines.host); |
b424eba2 ACM |
166 | } |
167 | ||
b424eba2 ACM |
168 | static void perf_session__delete_threads(struct perf_session *session) |
169 | { | |
876650e6 | 170 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
171 | } |
172 | ||
03cd2094 NK |
173 | static void perf_session_env__delete(struct perf_session_env *env) |
174 | { | |
175 | free(env->hostname); | |
176 | free(env->os_release); | |
177 | free(env->version); | |
178 | free(env->arch); | |
179 | free(env->cpu_desc); | |
180 | free(env->cpuid); | |
181 | ||
182 | free(env->cmdline); | |
183 | free(env->sibling_cores); | |
184 | free(env->sibling_threads); | |
185 | free(env->numa_nodes); | |
186 | free(env->pmu_mappings); | |
187 | } | |
188 | ||
94c744b6 ACM |
189 | void perf_session__delete(struct perf_session *self) |
190 | { | |
076c6e45 | 191 | perf_session__destroy_kernel_maps(self); |
d65a458b ACM |
192 | perf_session__delete_dead_threads(self); |
193 | perf_session__delete_threads(self); | |
03cd2094 | 194 | perf_session_env__delete(&self->header.env); |
876650e6 | 195 | machines__exit(&self->machines); |
94c744b6 ACM |
196 | close(self->fd); |
197 | free(self); | |
7dbf4dcf | 198 | vdso__exit(); |
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 | ||
1d037ca1 IT |
240 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
241 | union perf_event *event __maybe_unused, | |
242 | struct perf_session *perf_session | |
243 | __maybe_unused) | |
743eb868 ACM |
244 | { |
245 | dump_printf(": unhandled!\n"); | |
246 | return 0; | |
247 | } | |
248 | ||
45694aa7 | 249 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
250 | union perf_event *event, |
251 | struct perf_session *session); | |
d6b17beb | 252 | |
9c501402 | 253 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 254 | { |
45694aa7 ACM |
255 | if (tool->sample == NULL) |
256 | tool->sample = process_event_sample_stub; | |
257 | if (tool->mmap == NULL) | |
258 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
259 | if (tool->mmap2 == NULL) |
260 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
261 | if (tool->comm == NULL) |
262 | tool->comm = process_event_stub; | |
263 | if (tool->fork == NULL) | |
264 | tool->fork = process_event_stub; | |
265 | if (tool->exit == NULL) | |
266 | tool->exit = process_event_stub; | |
267 | if (tool->lost == NULL) | |
268 | tool->lost = perf_event__process_lost; | |
269 | if (tool->read == NULL) | |
270 | tool->read = process_event_sample_stub; | |
271 | if (tool->throttle == NULL) | |
272 | tool->throttle = process_event_stub; | |
273 | if (tool->unthrottle == NULL) | |
274 | tool->unthrottle = process_event_stub; | |
275 | if (tool->attr == NULL) | |
276 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
277 | if (tool->tracing_data == NULL) |
278 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
279 | if (tool->build_id == NULL) | |
280 | tool->build_id = process_finished_round_stub; | |
281 | if (tool->finished_round == NULL) { | |
282 | if (tool->ordered_samples) | |
283 | tool->finished_round = process_finished_round; | |
d6b17beb | 284 | else |
45694aa7 | 285 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 286 | } |
06aae590 | 287 | } |
80c0120a DA |
288 | |
289 | void mem_bswap_32(void *src, int byte_size) | |
290 | { | |
291 | u32 *m = src; | |
292 | while (byte_size > 0) { | |
293 | *m = bswap_32(*m); | |
294 | byte_size -= sizeof(u32); | |
295 | ++m; | |
296 | } | |
297 | } | |
06aae590 | 298 | |
ba21594c ACM |
299 | void mem_bswap_64(void *src, int byte_size) |
300 | { | |
301 | u64 *m = src; | |
302 | ||
303 | while (byte_size > 0) { | |
304 | *m = bswap_64(*m); | |
305 | byte_size -= sizeof(u64); | |
306 | ++m; | |
307 | } | |
308 | } | |
309 | ||
268fb20f JO |
310 | static void swap_sample_id_all(union perf_event *event, void *data) |
311 | { | |
312 | void *end = (void *) event + event->header.size; | |
313 | int size = end - data; | |
314 | ||
315 | BUG_ON(size % sizeof(u64)); | |
316 | mem_bswap_64(data, size); | |
317 | } | |
318 | ||
319 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 320 | bool sample_id_all __maybe_unused) |
ba21594c | 321 | { |
8115d60c ACM |
322 | struct perf_event_header *hdr = &event->header; |
323 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
324 | } |
325 | ||
268fb20f | 326 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 327 | { |
8115d60c ACM |
328 | event->comm.pid = bswap_32(event->comm.pid); |
329 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
330 | |
331 | if (sample_id_all) { | |
332 | void *data = &event->comm.comm; | |
333 | ||
9ac3e487 | 334 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
335 | swap_sample_id_all(event, data); |
336 | } | |
ba21594c ACM |
337 | } |
338 | ||
268fb20f JO |
339 | static void perf_event__mmap_swap(union perf_event *event, |
340 | bool sample_id_all) | |
ba21594c | 341 | { |
8115d60c ACM |
342 | event->mmap.pid = bswap_32(event->mmap.pid); |
343 | event->mmap.tid = bswap_32(event->mmap.tid); | |
344 | event->mmap.start = bswap_64(event->mmap.start); | |
345 | event->mmap.len = bswap_64(event->mmap.len); | |
346 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
347 | |
348 | if (sample_id_all) { | |
349 | void *data = &event->mmap.filename; | |
350 | ||
9ac3e487 | 351 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
352 | swap_sample_id_all(event, data); |
353 | } | |
ba21594c ACM |
354 | } |
355 | ||
5c5e854b SE |
356 | static void perf_event__mmap2_swap(union perf_event *event, |
357 | bool sample_id_all) | |
358 | { | |
359 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
360 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
361 | event->mmap2.start = bswap_64(event->mmap2.start); | |
362 | event->mmap2.len = bswap_64(event->mmap2.len); | |
363 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
364 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
365 | event->mmap2.min = bswap_32(event->mmap2.min); | |
366 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
367 | ||
368 | if (sample_id_all) { | |
369 | void *data = &event->mmap2.filename; | |
370 | ||
371 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
372 | swap_sample_id_all(event, data); | |
373 | } | |
374 | } | |
268fb20f | 375 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 376 | { |
8115d60c ACM |
377 | event->fork.pid = bswap_32(event->fork.pid); |
378 | event->fork.tid = bswap_32(event->fork.tid); | |
379 | event->fork.ppid = bswap_32(event->fork.ppid); | |
380 | event->fork.ptid = bswap_32(event->fork.ptid); | |
381 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
382 | |
383 | if (sample_id_all) | |
384 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
385 | } |
386 | ||
268fb20f | 387 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 388 | { |
8115d60c ACM |
389 | event->read.pid = bswap_32(event->read.pid); |
390 | event->read.tid = bswap_32(event->read.tid); | |
391 | event->read.value = bswap_64(event->read.value); | |
392 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
393 | event->read.time_running = bswap_64(event->read.time_running); | |
394 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
395 | |
396 | if (sample_id_all) | |
397 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
398 | } |
399 | ||
dd96c46b JO |
400 | static void perf_event__throttle_swap(union perf_event *event, |
401 | bool sample_id_all) | |
402 | { | |
403 | event->throttle.time = bswap_64(event->throttle.time); | |
404 | event->throttle.id = bswap_64(event->throttle.id); | |
405 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
406 | ||
407 | if (sample_id_all) | |
408 | swap_sample_id_all(event, &event->throttle + 1); | |
409 | } | |
410 | ||
e108c66e JO |
411 | static u8 revbyte(u8 b) |
412 | { | |
413 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
414 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
415 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
416 | return (u8) rev; | |
417 | } | |
418 | ||
419 | /* | |
420 | * XXX this is hack in attempt to carry flags bitfield | |
421 | * throught endian village. ABI says: | |
422 | * | |
423 | * Bit-fields are allocated from right to left (least to most significant) | |
424 | * on little-endian implementations and from left to right (most to least | |
425 | * significant) on big-endian implementations. | |
426 | * | |
427 | * The above seems to be byte specific, so we need to reverse each | |
428 | * byte of the bitfield. 'Internet' also says this might be implementation | |
429 | * specific and we probably need proper fix and carry perf_event_attr | |
430 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
431 | * to work for now. | |
432 | */ | |
433 | static void swap_bitfield(u8 *p, unsigned len) | |
434 | { | |
435 | unsigned i; | |
436 | ||
437 | for (i = 0; i < len; i++) { | |
438 | *p = revbyte(*p); | |
439 | p++; | |
440 | } | |
441 | } | |
442 | ||
eda3913b DA |
443 | /* exported for swapping attributes in file header */ |
444 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
445 | { | |
446 | attr->type = bswap_32(attr->type); | |
447 | attr->size = bswap_32(attr->size); | |
448 | attr->config = bswap_64(attr->config); | |
449 | attr->sample_period = bswap_64(attr->sample_period); | |
450 | attr->sample_type = bswap_64(attr->sample_type); | |
451 | attr->read_format = bswap_64(attr->read_format); | |
452 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
453 | attr->bp_type = bswap_32(attr->bp_type); | |
454 | attr->bp_addr = bswap_64(attr->bp_addr); | |
455 | attr->bp_len = bswap_64(attr->bp_len); | |
e108c66e JO |
456 | |
457 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
458 | } |
459 | ||
268fb20f | 460 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 461 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
462 | { |
463 | size_t size; | |
464 | ||
eda3913b | 465 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 466 | |
8115d60c ACM |
467 | size = event->header.size; |
468 | size -= (void *)&event->attr.id - (void *)event; | |
469 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
470 | } |
471 | ||
268fb20f | 472 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 473 | bool sample_id_all __maybe_unused) |
cd19a035 | 474 | { |
8115d60c ACM |
475 | event->event_type.event_type.event_id = |
476 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
477 | } |
478 | ||
268fb20f | 479 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 480 | bool sample_id_all __maybe_unused) |
9215545e | 481 | { |
8115d60c | 482 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
483 | } |
484 | ||
268fb20f JO |
485 | typedef void (*perf_event__swap_op)(union perf_event *event, |
486 | bool sample_id_all); | |
ba21594c | 487 | |
8115d60c ACM |
488 | static perf_event__swap_op perf_event__swap_ops[] = { |
489 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 490 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
491 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
492 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
493 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
494 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
495 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
496 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
497 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 498 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
eda3913b | 499 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
500 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
501 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
502 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
503 | [PERF_RECORD_HEADER_MAX] = NULL, | |
ba21594c ACM |
504 | }; |
505 | ||
c61e52ee FW |
506 | struct sample_queue { |
507 | u64 timestamp; | |
e4c2df13 | 508 | u64 file_offset; |
8115d60c | 509 | union perf_event *event; |
c61e52ee FW |
510 | struct list_head list; |
511 | }; | |
512 | ||
020bb75a TG |
513 | static void perf_session_free_sample_buffers(struct perf_session *session) |
514 | { | |
515 | struct ordered_samples *os = &session->ordered_samples; | |
516 | ||
5c891f38 | 517 | while (!list_empty(&os->to_free)) { |
020bb75a TG |
518 | struct sample_queue *sq; |
519 | ||
5c891f38 | 520 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
020bb75a TG |
521 | list_del(&sq->list); |
522 | free(sq); | |
523 | } | |
524 | } | |
525 | ||
cbf41645 | 526 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 527 | union perf_event *event, |
8d50e5b4 | 528 | struct perf_sample *sample, |
45694aa7 | 529 | struct perf_tool *tool, |
f74725dc | 530 | u64 file_offset); |
cbf41645 | 531 | |
d25380cd | 532 | static int flush_sample_queue(struct perf_session *s, |
9c501402 | 533 | struct perf_tool *tool) |
c61e52ee | 534 | { |
a1225dec TG |
535 | struct ordered_samples *os = &s->ordered_samples; |
536 | struct list_head *head = &os->samples; | |
c61e52ee | 537 | struct sample_queue *tmp, *iter; |
8d50e5b4 | 538 | struct perf_sample sample; |
a1225dec TG |
539 | u64 limit = os->next_flush; |
540 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; | |
88660563 | 541 | unsigned idx = 0, progress_next = os->nr_samples / 16; |
526fd8d4 | 542 | bool show_progress = limit == ULLONG_MAX; |
5538beca | 543 | int ret; |
c61e52ee | 544 | |
45694aa7 | 545 | if (!tool->ordered_samples || !limit) |
d25380cd | 546 | return 0; |
c61e52ee FW |
547 | |
548 | list_for_each_entry_safe(iter, tmp, head, list) { | |
33e940a2 ACM |
549 | if (session_done()) |
550 | return 0; | |
551 | ||
c61e52ee | 552 | if (iter->timestamp > limit) |
a1225dec | 553 | break; |
c61e52ee | 554 | |
0807d2d8 | 555 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); |
5538beca FW |
556 | if (ret) |
557 | pr_err("Can't parse sample, err = %d\n", ret); | |
d25380cd DA |
558 | else { |
559 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, | |
560 | iter->file_offset); | |
561 | if (ret) | |
562 | return ret; | |
563 | } | |
c61e52ee | 564 | |
a1225dec | 565 | os->last_flush = iter->timestamp; |
c61e52ee | 566 | list_del(&iter->list); |
020bb75a | 567 | list_add(&iter->list, &os->sample_cache); |
526fd8d4 | 568 | if (show_progress && (++idx >= progress_next)) { |
88660563 ACM |
569 | progress_next += os->nr_samples / 16; |
570 | ui_progress__update(idx, os->nr_samples, | |
571 | "Processing time ordered events..."); | |
572 | } | |
c61e52ee | 573 | } |
a1225dec TG |
574 | |
575 | if (list_empty(head)) { | |
576 | os->last_sample = NULL; | |
577 | } else if (last_ts <= limit) { | |
578 | os->last_sample = | |
579 | list_entry(head->prev, struct sample_queue, list); | |
580 | } | |
88660563 ACM |
581 | |
582 | os->nr_samples = 0; | |
d25380cd DA |
583 | |
584 | return 0; | |
c61e52ee FW |
585 | } |
586 | ||
d6b17beb FW |
587 | /* |
588 | * When perf record finishes a pass on every buffers, it records this pseudo | |
589 | * event. | |
590 | * We record the max timestamp t found in the pass n. | |
591 | * Assuming these timestamps are monotonic across cpus, we know that if | |
592 | * a buffer still has events with timestamps below t, they will be all | |
593 | * available and then read in the pass n + 1. | |
594 | * Hence when we start to read the pass n + 2, we can safely flush every | |
595 | * events with timestamps below t. | |
596 | * | |
597 | * ============ PASS n ================= | |
598 | * CPU 0 | CPU 1 | |
599 | * | | |
600 | * cnt1 timestamps | cnt2 timestamps | |
601 | * 1 | 2 | |
602 | * 2 | 3 | |
603 | * - | 4 <--- max recorded | |
604 | * | |
605 | * ============ PASS n + 1 ============== | |
606 | * CPU 0 | CPU 1 | |
607 | * | | |
608 | * cnt1 timestamps | cnt2 timestamps | |
609 | * 3 | 5 | |
610 | * 4 | 6 | |
611 | * 5 | 7 <---- max recorded | |
612 | * | |
613 | * Flush every events below timestamp 4 | |
614 | * | |
615 | * ============ PASS n + 2 ============== | |
616 | * CPU 0 | CPU 1 | |
617 | * | | |
618 | * cnt1 timestamps | cnt2 timestamps | |
619 | * 6 | 8 | |
620 | * 7 | 9 | |
621 | * - | 10 | |
622 | * | |
623 | * Flush every events below timestamp 7 | |
624 | * etc... | |
625 | */ | |
45694aa7 | 626 | static int process_finished_round(struct perf_tool *tool, |
1d037ca1 | 627 | union perf_event *event __maybe_unused, |
d20deb64 | 628 | struct perf_session *session) |
d6b17beb | 629 | { |
d25380cd DA |
630 | int ret = flush_sample_queue(session, tool); |
631 | if (!ret) | |
632 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; | |
d6b17beb | 633 | |
d25380cd | 634 | return ret; |
d6b17beb FW |
635 | } |
636 | ||
c61e52ee | 637 | /* The queue is ordered by time */ |
cbf41645 | 638 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
c61e52ee | 639 | { |
a1225dec TG |
640 | struct ordered_samples *os = &s->ordered_samples; |
641 | struct sample_queue *sample = os->last_sample; | |
642 | u64 timestamp = new->timestamp; | |
643 | struct list_head *p; | |
c61e52ee | 644 | |
88660563 | 645 | ++os->nr_samples; |
a1225dec | 646 | os->last_sample = new; |
c61e52ee | 647 | |
a1225dec TG |
648 | if (!sample) { |
649 | list_add(&new->list, &os->samples); | |
650 | os->max_timestamp = timestamp; | |
c61e52ee FW |
651 | return; |
652 | } | |
653 | ||
654 | /* | |
a1225dec TG |
655 | * last_sample might point to some random place in the list as it's |
656 | * the last queued event. We expect that the new event is close to | |
657 | * this. | |
c61e52ee | 658 | */ |
a1225dec TG |
659 | if (sample->timestamp <= timestamp) { |
660 | while (sample->timestamp <= timestamp) { | |
661 | p = sample->list.next; | |
662 | if (p == &os->samples) { | |
663 | list_add_tail(&new->list, &os->samples); | |
664 | os->max_timestamp = timestamp; | |
665 | return; | |
666 | } | |
667 | sample = list_entry(p, struct sample_queue, list); | |
668 | } | |
669 | list_add_tail(&new->list, &sample->list); | |
670 | } else { | |
671 | while (sample->timestamp > timestamp) { | |
672 | p = sample->list.prev; | |
673 | if (p == &os->samples) { | |
674 | list_add(&new->list, &os->samples); | |
675 | return; | |
676 | } | |
677 | sample = list_entry(p, struct sample_queue, list); | |
678 | } | |
679 | list_add(&new->list, &sample->list); | |
680 | } | |
c61e52ee FW |
681 | } |
682 | ||
5c891f38 TG |
683 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
684 | ||
e30b88a7 | 685 | int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
8d50e5b4 | 686 | struct perf_sample *sample, u64 file_offset) |
c61e52ee | 687 | { |
5c891f38 TG |
688 | struct ordered_samples *os = &s->ordered_samples; |
689 | struct list_head *sc = &os->sample_cache; | |
8d50e5b4 | 690 | u64 timestamp = sample->time; |
c61e52ee | 691 | struct sample_queue *new; |
c61e52ee | 692 | |
79a14c1f | 693 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
694 | return -ETIME; |
695 | ||
c61e52ee FW |
696 | if (timestamp < s->ordered_samples.last_flush) { |
697 | printf("Warning: Timestamp below last timeslice flush\n"); | |
698 | return -EINVAL; | |
699 | } | |
700 | ||
020bb75a TG |
701 | if (!list_empty(sc)) { |
702 | new = list_entry(sc->next, struct sample_queue, list); | |
703 | list_del(&new->list); | |
5c891f38 TG |
704 | } else if (os->sample_buffer) { |
705 | new = os->sample_buffer + os->sample_buffer_idx; | |
706 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) | |
707 | os->sample_buffer = NULL; | |
020bb75a | 708 | } else { |
5c891f38 TG |
709 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
710 | if (!os->sample_buffer) | |
020bb75a | 711 | return -ENOMEM; |
5c891f38 TG |
712 | list_add(&os->sample_buffer->list, &os->to_free); |
713 | os->sample_buffer_idx = 2; | |
714 | new = os->sample_buffer + 1; | |
020bb75a | 715 | } |
c61e52ee FW |
716 | |
717 | new->timestamp = timestamp; | |
e4c2df13 | 718 | new->file_offset = file_offset; |
fe174207 | 719 | new->event = event; |
c61e52ee | 720 | |
cbf41645 | 721 | __queue_event(new, s); |
640c03ce | 722 | |
640c03ce ACM |
723 | return 0; |
724 | } | |
c61e52ee | 725 | |
8d50e5b4 | 726 | static void callchain__printf(struct perf_sample *sample) |
640c03ce ACM |
727 | { |
728 | unsigned int i; | |
c61e52ee | 729 | |
9486aa38 | 730 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
640c03ce ACM |
731 | |
732 | for (i = 0; i < sample->callchain->nr; i++) | |
9486aa38 ACM |
733 | printf("..... %2d: %016" PRIx64 "\n", |
734 | i, sample->callchain->ips[i]); | |
c61e52ee FW |
735 | } |
736 | ||
b5387528 RAV |
737 | static void branch_stack__printf(struct perf_sample *sample) |
738 | { | |
739 | uint64_t i; | |
740 | ||
741 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
742 | ||
743 | for (i = 0; i < sample->branch_stack->nr; i++) | |
744 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
745 | i, sample->branch_stack->entries[i].from, | |
746 | sample->branch_stack->entries[i].to); | |
747 | } | |
748 | ||
0f6a3015 JO |
749 | static void regs_dump__printf(u64 mask, u64 *regs) |
750 | { | |
751 | unsigned rid, i = 0; | |
752 | ||
753 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
754 | u64 val = regs[i++]; | |
755 | ||
756 | printf(".... %-5s 0x%" PRIx64 "\n", | |
757 | perf_reg_name(rid), val); | |
758 | } | |
759 | } | |
760 | ||
761 | static void regs_user__printf(struct perf_sample *sample, u64 mask) | |
762 | { | |
763 | struct regs_dump *user_regs = &sample->user_regs; | |
764 | ||
765 | if (user_regs->regs) { | |
766 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); | |
767 | regs_dump__printf(mask, user_regs->regs); | |
768 | } | |
769 | } | |
770 | ||
771 | static void stack_user__printf(struct stack_dump *dump) | |
772 | { | |
773 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
774 | dump->size, dump->offset); | |
775 | } | |
776 | ||
9c90a61c | 777 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 778 | union perf_event *event, |
8d50e5b4 | 779 | struct perf_sample *sample) |
9c90a61c | 780 | { |
75562573 | 781 | u64 sample_type = __perf_evlist__combined_sample_type(session->evlist); |
7f3be652 | 782 | |
9c90a61c | 783 | if (event->header.type != PERF_RECORD_SAMPLE && |
5e562474 | 784 | !perf_evlist__sample_id_all(session->evlist)) { |
9c90a61c ACM |
785 | fputs("-1 -1 ", stdout); |
786 | return; | |
787 | } | |
788 | ||
7f3be652 | 789 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
790 | printf("%u ", sample->cpu); |
791 | ||
7f3be652 | 792 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 793 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
794 | } |
795 | ||
9ede473c JO |
796 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
797 | { | |
798 | printf("... sample_read:\n"); | |
799 | ||
800 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
801 | printf("...... time enabled %016" PRIx64 "\n", | |
802 | sample->read.time_enabled); | |
803 | ||
804 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
805 | printf("...... time running %016" PRIx64 "\n", | |
806 | sample->read.time_running); | |
807 | ||
808 | if (read_format & PERF_FORMAT_GROUP) { | |
809 | u64 i; | |
810 | ||
811 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
812 | ||
813 | for (i = 0; i < sample->read.group.nr; i++) { | |
814 | struct sample_read_value *value; | |
815 | ||
816 | value = &sample->read.group.values[i]; | |
817 | printf("..... id %016" PRIx64 | |
818 | ", value %016" PRIx64 "\n", | |
819 | value->id, value->value); | |
820 | } | |
821 | } else | |
822 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
823 | sample->read.one.id, sample->read.one.value); | |
824 | } | |
825 | ||
8115d60c | 826 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 827 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
828 | { |
829 | if (!dump_trace) | |
830 | return; | |
831 | ||
9486aa38 ACM |
832 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
833 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
834 | |
835 | trace_event(event); | |
836 | ||
837 | if (sample) | |
838 | perf_session__print_tstamp(session, event, sample); | |
839 | ||
9486aa38 | 840 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 841 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
842 | } |
843 | ||
0f6a3015 | 844 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 845 | struct perf_sample *sample) |
9aefcab0 | 846 | { |
7f3be652 ACM |
847 | u64 sample_type; |
848 | ||
ddbc24b7 ACM |
849 | if (!dump_trace) |
850 | return; | |
851 | ||
7cec0922 | 852 | printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 853 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 854 | sample->period, sample->addr); |
9aefcab0 | 855 | |
0f6a3015 | 856 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
857 | |
858 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
ddbc24b7 | 859 | callchain__printf(sample); |
b5387528 | 860 | |
7f3be652 | 861 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
b5387528 | 862 | branch_stack__printf(sample); |
0f6a3015 JO |
863 | |
864 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
865 | regs_user__printf(sample, evsel->attr.sample_regs_user); | |
866 | ||
867 | if (sample_type & PERF_SAMPLE_STACK_USER) | |
868 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
869 | |
870 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
871 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
872 | |
873 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
874 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 875 | |
475eeab9 AK |
876 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
877 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
878 | ||
9ede473c JO |
879 | if (sample_type & PERF_SAMPLE_READ) |
880 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
881 | } |
882 | ||
743eb868 ACM |
883 | static struct machine * |
884 | perf_session__find_machine_for_cpumode(struct perf_session *session, | |
ef89325f AH |
885 | union perf_event *event, |
886 | struct perf_sample *sample) | |
743eb868 ACM |
887 | { |
888 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
889 | ||
7c0f4a41 DA |
890 | if (perf_guest && |
891 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
892 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
893 | u32 pid; |
894 | ||
5c5e854b SE |
895 | if (event->header.type == PERF_RECORD_MMAP |
896 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
897 | pid = event->mmap.pid; |
898 | else | |
ef89325f | 899 | pid = sample->pid; |
7fb0a5ee | 900 | |
207b5792 | 901 | return perf_session__findnew_machine(session, pid); |
7fb0a5ee | 902 | } |
743eb868 | 903 | |
34ba5122 | 904 | return &session->machines.host; |
743eb868 ACM |
905 | } |
906 | ||
e4caec0d JO |
907 | static int deliver_sample_value(struct perf_session *session, |
908 | struct perf_tool *tool, | |
909 | union perf_event *event, | |
910 | struct perf_sample *sample, | |
911 | struct sample_read_value *v, | |
912 | struct machine *machine) | |
913 | { | |
914 | struct perf_sample_id *sid; | |
915 | ||
916 | sid = perf_evlist__id2sid(session->evlist, v->id); | |
917 | if (sid) { | |
918 | sample->id = v->id; | |
919 | sample->period = v->value - sid->period; | |
920 | sid->period = v->value; | |
921 | } | |
922 | ||
923 | if (!sid || sid->evsel == NULL) { | |
924 | ++session->stats.nr_unknown_id; | |
925 | return 0; | |
926 | } | |
927 | ||
928 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
929 | } | |
930 | ||
931 | static int deliver_sample_group(struct perf_session *session, | |
932 | struct perf_tool *tool, | |
933 | union perf_event *event, | |
934 | struct perf_sample *sample, | |
935 | struct machine *machine) | |
936 | { | |
937 | int ret = -EINVAL; | |
938 | u64 i; | |
939 | ||
940 | for (i = 0; i < sample->read.group.nr; i++) { | |
941 | ret = deliver_sample_value(session, tool, event, sample, | |
942 | &sample->read.group.values[i], | |
943 | machine); | |
944 | if (ret) | |
945 | break; | |
946 | } | |
947 | ||
948 | return ret; | |
949 | } | |
950 | ||
951 | static int | |
952 | perf_session__deliver_sample(struct perf_session *session, | |
953 | struct perf_tool *tool, | |
954 | union perf_event *event, | |
955 | struct perf_sample *sample, | |
956 | struct perf_evsel *evsel, | |
957 | struct machine *machine) | |
958 | { | |
959 | /* We know evsel != NULL. */ | |
960 | u64 sample_type = evsel->attr.sample_type; | |
961 | u64 read_format = evsel->attr.read_format; | |
962 | ||
963 | /* Standard sample delievery. */ | |
964 | if (!(sample_type & PERF_SAMPLE_READ)) | |
965 | return tool->sample(tool, event, sample, evsel, machine); | |
966 | ||
967 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
968 | if (read_format & PERF_FORMAT_GROUP) | |
969 | return deliver_sample_group(session, tool, event, sample, | |
970 | machine); | |
971 | else | |
972 | return deliver_sample_value(session, tool, event, sample, | |
973 | &sample->read.one, machine); | |
974 | } | |
975 | ||
cbf41645 | 976 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 977 | union perf_event *event, |
8d50e5b4 | 978 | struct perf_sample *sample, |
45694aa7 | 979 | struct perf_tool *tool, |
532e7269 | 980 | u64 file_offset) |
cbf41645 | 981 | { |
9e69c210 | 982 | struct perf_evsel *evsel; |
743eb868 | 983 | struct machine *machine; |
9e69c210 | 984 | |
532e7269 TG |
985 | dump_event(session, event, file_offset, sample); |
986 | ||
7b27509f ACM |
987 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
988 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { | |
989 | /* | |
990 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here | |
991 | * because the tools right now may apply filters, discarding | |
992 | * some of the samples. For consistency, in the future we | |
993 | * should have something like nr_filtered_samples and remove | |
994 | * the sample->period from total_sample_period, etc, KISS for | |
995 | * now tho. | |
996 | * | |
997 | * Also testing against NULL allows us to handle files without | |
998 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the | |
999 | * future probably it'll be a good idea to restrict event | |
1000 | * processing via perf_session to files with both set. | |
1001 | */ | |
1002 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
1003 | } | |
1004 | ||
ef89325f AH |
1005 | machine = perf_session__find_machine_for_cpumode(session, event, |
1006 | sample); | |
743eb868 | 1007 | |
cbf41645 TG |
1008 | switch (event->header.type) { |
1009 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 1010 | dump_sample(evsel, event, sample); |
9e69c210 | 1011 | if (evsel == NULL) { |
28a6b6aa | 1012 | ++session->stats.nr_unknown_id; |
6782206b | 1013 | return 0; |
9e69c210 | 1014 | } |
0c095715 | 1015 | if (machine == NULL) { |
28a6b6aa | 1016 | ++session->stats.nr_unprocessable_samples; |
6782206b | 1017 | return 0; |
0c095715 | 1018 | } |
e4caec0d JO |
1019 | return perf_session__deliver_sample(session, tool, event, |
1020 | sample, evsel, machine); | |
cbf41645 | 1021 | case PERF_RECORD_MMAP: |
45694aa7 | 1022 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
1023 | case PERF_RECORD_MMAP2: |
1024 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 1025 | case PERF_RECORD_COMM: |
45694aa7 | 1026 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1027 | case PERF_RECORD_FORK: |
45694aa7 | 1028 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1029 | case PERF_RECORD_EXIT: |
45694aa7 | 1030 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1031 | case PERF_RECORD_LOST: |
45694aa7 | 1032 | if (tool->lost == perf_event__process_lost) |
28a6b6aa | 1033 | session->stats.total_lost += event->lost.lost; |
45694aa7 | 1034 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1035 | case PERF_RECORD_READ: |
45694aa7 | 1036 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1037 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1038 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1039 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1040 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 | 1041 | default: |
28a6b6aa | 1042 | ++session->stats.nr_unknown_events; |
cbf41645 TG |
1043 | return -1; |
1044 | } | |
1045 | } | |
1046 | ||
8115d60c | 1047 | static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, |
45694aa7 | 1048 | struct perf_tool *tool, u64 file_offset) |
06aae590 | 1049 | { |
10d0f086 ACM |
1050 | int err; |
1051 | ||
ba74f064 | 1052 | dump_event(session, event, file_offset, NULL); |
06aae590 | 1053 | |
cbf41645 | 1054 | /* These events are processed right away */ |
06aae590 | 1055 | switch (event->header.type) { |
2c46dbb5 | 1056 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1057 | err = tool->attr(tool, event, &session->evlist); |
10d0f086 | 1058 | if (err == 0) |
7b56cce2 | 1059 | perf_session__set_id_hdr_size(session); |
10d0f086 | 1060 | return err; |
9215545e TZ |
1061 | case PERF_RECORD_HEADER_TRACING_DATA: |
1062 | /* setup for reading amidst mmap */ | |
cbf41645 | 1063 | lseek(session->fd, file_offset, SEEK_SET); |
47c3d109 | 1064 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1065 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1066 | return tool->build_id(tool, event, session); |
d6b17beb | 1067 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 1068 | return tool->finished_round(tool, event, session); |
06aae590 | 1069 | default: |
ba74f064 | 1070 | return -EINVAL; |
06aae590 | 1071 | } |
ba74f064 TG |
1072 | } |
1073 | ||
268fb20f JO |
1074 | static void event_swap(union perf_event *event, bool sample_id_all) |
1075 | { | |
1076 | perf_event__swap_op swap; | |
1077 | ||
1078 | swap = perf_event__swap_ops[event->header.type]; | |
1079 | if (swap) | |
1080 | swap(event, sample_id_all); | |
1081 | } | |
1082 | ||
e30b88a7 DA |
1083 | static int perf_session__process_event(struct perf_session *session, |
1084 | union perf_event *event, | |
1085 | struct perf_tool *tool, | |
1086 | u64 file_offset) | |
ba74f064 | 1087 | { |
8d50e5b4 | 1088 | struct perf_sample sample; |
ba74f064 TG |
1089 | int ret; |
1090 | ||
268fb20f | 1091 | if (session->header.needs_swap) |
5e562474 | 1092 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
ba74f064 TG |
1093 | |
1094 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1095 | return -EINVAL; | |
1096 | ||
28a6b6aa | 1097 | events_stats__inc(&session->stats, event->header.type); |
ba74f064 TG |
1098 | |
1099 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1100 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1101 | |
3dfc2c0a TG |
1102 | /* |
1103 | * For all kernel events we get the sample data | |
1104 | */ | |
0807d2d8 | 1105 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
5538beca FW |
1106 | if (ret) |
1107 | return ret; | |
3dfc2c0a | 1108 | |
45694aa7 | 1109 | if (tool->ordered_samples) { |
e4c2df13 TG |
1110 | ret = perf_session_queue_event(session, event, &sample, |
1111 | file_offset); | |
cbf41645 TG |
1112 | if (ret != -ETIME) |
1113 | return ret; | |
1114 | } | |
1115 | ||
45694aa7 | 1116 | return perf_session_deliver_event(session, event, &sample, tool, |
f74725dc | 1117 | file_offset); |
06aae590 ACM |
1118 | } |
1119 | ||
ba21594c ACM |
1120 | void perf_event_header__bswap(struct perf_event_header *self) |
1121 | { | |
1122 | self->type = bswap_32(self->type); | |
1123 | self->misc = bswap_16(self->misc); | |
1124 | self->size = bswap_16(self->size); | |
1125 | } | |
1126 | ||
b424eba2 ACM |
1127 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1128 | { | |
314add6b | 1129 | return machine__findnew_thread(&session->machines.host, 0, pid); |
b424eba2 ACM |
1130 | } |
1131 | ||
06aae590 ACM |
1132 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
1133 | { | |
1134 | struct thread *thread = perf_session__findnew(self, 0); | |
1135 | ||
1136 | if (thread == NULL || thread__set_comm(thread, "swapper")) { | |
1137 | pr_err("problem inserting idle task.\n"); | |
1138 | thread = NULL; | |
1139 | } | |
1140 | ||
1141 | return thread; | |
1142 | } | |
1143 | ||
11095994 | 1144 | static void perf_session__warn_about_errors(const struct perf_session *session, |
45694aa7 | 1145 | const struct perf_tool *tool) |
11095994 | 1146 | { |
45694aa7 | 1147 | if (tool->lost == perf_event__process_lost && |
28a6b6aa | 1148 | session->stats.nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1149 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1150 | "Check IO/CPU overload!\n\n", | |
28a6b6aa ACM |
1151 | session->stats.nr_events[0], |
1152 | session->stats.nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1153 | } |
1154 | ||
28a6b6aa | 1155 | if (session->stats.nr_unknown_events != 0) { |
11095994 ACM |
1156 | ui__warning("Found %u unknown events!\n\n" |
1157 | "Is this an older tool processing a perf.data " | |
1158 | "file generated by a more recent tool?\n\n" | |
1159 | "If that is not the case, consider " | |
1160 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa | 1161 | session->stats.nr_unknown_events); |
11095994 ACM |
1162 | } |
1163 | ||
28a6b6aa | 1164 | if (session->stats.nr_unknown_id != 0) { |
9e69c210 | 1165 | ui__warning("%u samples with id not present in the header\n", |
28a6b6aa | 1166 | session->stats.nr_unknown_id); |
9e69c210 ACM |
1167 | } |
1168 | ||
28a6b6aa | 1169 | if (session->stats.nr_invalid_chains != 0) { |
11095994 ACM |
1170 | ui__warning("Found invalid callchains!\n\n" |
1171 | "%u out of %u events were discarded for this reason.\n\n" | |
1172 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa ACM |
1173 | session->stats.nr_invalid_chains, |
1174 | session->stats.nr_events[PERF_RECORD_SAMPLE]); | |
11095994 | 1175 | } |
0c095715 | 1176 | |
28a6b6aa | 1177 | if (session->stats.nr_unprocessable_samples != 0) { |
0c095715 JR |
1178 | ui__warning("%u unprocessable samples recorded.\n" |
1179 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
28a6b6aa | 1180 | session->stats.nr_unprocessable_samples); |
0c095715 | 1181 | } |
11095994 ACM |
1182 | } |
1183 | ||
8dc58101 TZ |
1184 | volatile int session_done; |
1185 | ||
1186 | static int __perf_session__process_pipe_events(struct perf_session *self, | |
45694aa7 | 1187 | struct perf_tool *tool) |
8dc58101 | 1188 | { |
444d2866 SE |
1189 | union perf_event *event; |
1190 | uint32_t size, cur_size = 0; | |
1191 | void *buf = NULL; | |
8dc58101 TZ |
1192 | int skip = 0; |
1193 | u64 head; | |
1194 | int err; | |
1195 | void *p; | |
1196 | ||
45694aa7 | 1197 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1198 | |
1199 | head = 0; | |
444d2866 SE |
1200 | cur_size = sizeof(union perf_event); |
1201 | ||
1202 | buf = malloc(cur_size); | |
1203 | if (!buf) | |
1204 | return -errno; | |
8dc58101 | 1205 | more: |
444d2866 SE |
1206 | event = buf; |
1207 | err = readn(self->fd, event, sizeof(struct perf_event_header)); | |
8dc58101 TZ |
1208 | if (err <= 0) { |
1209 | if (err == 0) | |
1210 | goto done; | |
1211 | ||
1212 | pr_err("failed to read event header\n"); | |
1213 | goto out_err; | |
1214 | } | |
1215 | ||
1216 | if (self->header.needs_swap) | |
444d2866 | 1217 | perf_event_header__bswap(&event->header); |
8dc58101 | 1218 | |
444d2866 | 1219 | size = event->header.size; |
27389d78 AH |
1220 | if (size < sizeof(struct perf_event_header)) { |
1221 | pr_err("bad event header size\n"); | |
1222 | goto out_err; | |
1223 | } | |
8dc58101 | 1224 | |
444d2866 SE |
1225 | if (size > cur_size) { |
1226 | void *new = realloc(buf, size); | |
1227 | if (!new) { | |
1228 | pr_err("failed to allocate memory to read event\n"); | |
1229 | goto out_err; | |
1230 | } | |
1231 | buf = new; | |
1232 | cur_size = size; | |
1233 | event = buf; | |
1234 | } | |
1235 | p = event; | |
8dc58101 TZ |
1236 | p += sizeof(struct perf_event_header); |
1237 | ||
794e43b5 | 1238 | if (size - sizeof(struct perf_event_header)) { |
1e7972cc | 1239 | err = readn(self->fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1240 | if (err <= 0) { |
1241 | if (err == 0) { | |
1242 | pr_err("unexpected end of event stream\n"); | |
1243 | goto done; | |
1244 | } | |
8dc58101 | 1245 | |
794e43b5 TZ |
1246 | pr_err("failed to read event data\n"); |
1247 | goto out_err; | |
1248 | } | |
8dc58101 TZ |
1249 | } |
1250 | ||
444d2866 | 1251 | if ((skip = perf_session__process_event(self, event, tool, head)) < 0) { |
9389a460 | 1252 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1253 | head, event->header.size, event->header.type); |
9389a460 JO |
1254 | err = -EINVAL; |
1255 | goto out_err; | |
8dc58101 TZ |
1256 | } |
1257 | ||
1258 | head += size; | |
1259 | ||
8dc58101 TZ |
1260 | if (skip > 0) |
1261 | head += skip; | |
1262 | ||
1263 | if (!session_done()) | |
1264 | goto more; | |
1265 | done: | |
8c16b649 AH |
1266 | /* do the final flush for ordered samples */ |
1267 | self->ordered_samples.next_flush = ULLONG_MAX; | |
1268 | err = flush_sample_queue(self, tool); | |
8dc58101 | 1269 | out_err: |
444d2866 | 1270 | free(buf); |
45694aa7 | 1271 | perf_session__warn_about_errors(self, tool); |
020bb75a | 1272 | perf_session_free_sample_buffers(self); |
8dc58101 TZ |
1273 | return err; |
1274 | } | |
1275 | ||
998bedc8 FW |
1276 | static union perf_event * |
1277 | fetch_mmaped_event(struct perf_session *session, | |
1278 | u64 head, size_t mmap_size, char *buf) | |
1279 | { | |
1280 | union perf_event *event; | |
1281 | ||
1282 | /* | |
1283 | * Ensure we have enough space remaining to read | |
1284 | * the size of the event in the headers. | |
1285 | */ | |
1286 | if (head + sizeof(event->header) > mmap_size) | |
1287 | return NULL; | |
1288 | ||
1289 | event = (union perf_event *)(buf + head); | |
1290 | ||
1291 | if (session->header.needs_swap) | |
1292 | perf_event_header__bswap(&event->header); | |
1293 | ||
27389d78 AH |
1294 | if (head + event->header.size > mmap_size) { |
1295 | /* We're not fetching the event so swap back again */ | |
1296 | if (session->header.needs_swap) | |
1297 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1298 | return NULL; |
27389d78 | 1299 | } |
998bedc8 FW |
1300 | |
1301 | return event; | |
1302 | } | |
1303 | ||
35d48ddf DM |
1304 | /* |
1305 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1306 | * slices. On 32bit we use 32MB. | |
1307 | */ | |
1308 | #if BITS_PER_LONG == 64 | |
1309 | #define MMAP_SIZE ULLONG_MAX | |
1310 | #define NUM_MMAPS 1 | |
1311 | #else | |
1312 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1313 | #define NUM_MMAPS 128 | |
1314 | #endif | |
1315 | ||
0331ee0c | 1316 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 | 1317 | u64 data_offset, u64 data_size, |
45694aa7 | 1318 | u64 file_size, struct perf_tool *tool) |
06aae590 | 1319 | { |
55b44629 | 1320 | u64 head, page_offset, file_offset, file_pos, progress_next; |
fe174207 | 1321 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1322 | size_t mmap_size; |
35d48ddf | 1323 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1324 | union perf_event *event; |
06aae590 | 1325 | uint32_t size; |
0331ee0c | 1326 | |
45694aa7 | 1327 | perf_tool__fill_defaults(tool); |
06aae590 | 1328 | |
0331ee0c TG |
1329 | page_offset = page_size * (data_offset / page_size); |
1330 | file_offset = page_offset; | |
1331 | head = data_offset - page_offset; | |
06aae590 | 1332 | |
b314e5cf | 1333 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1334 | file_size = data_offset + data_size; |
1335 | ||
55b44629 | 1336 | progress_next = file_size / 16; |
55b44629 | 1337 | |
35d48ddf | 1338 | mmap_size = MMAP_SIZE; |
55b44629 TG |
1339 | if (mmap_size > file_size) |
1340 | mmap_size = file_size; | |
1341 | ||
fe174207 TG |
1342 | memset(mmaps, 0, sizeof(mmaps)); |
1343 | ||
ba21594c ACM |
1344 | mmap_prot = PROT_READ; |
1345 | mmap_flags = MAP_SHARED; | |
1346 | ||
0331ee0c | 1347 | if (session->header.needs_swap) { |
ba21594c ACM |
1348 | mmap_prot |= PROT_WRITE; |
1349 | mmap_flags = MAP_PRIVATE; | |
1350 | } | |
06aae590 | 1351 | remap: |
55b44629 TG |
1352 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd, |
1353 | file_offset); | |
06aae590 ACM |
1354 | if (buf == MAP_FAILED) { |
1355 | pr_err("failed to mmap file\n"); | |
1356 | err = -errno; | |
1357 | goto out_err; | |
1358 | } | |
fe174207 TG |
1359 | mmaps[map_idx] = buf; |
1360 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1361 | file_pos = file_offset + head; |
06aae590 ACM |
1362 | |
1363 | more: | |
998bedc8 FW |
1364 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1365 | if (!event) { | |
fe174207 TG |
1366 | if (mmaps[map_idx]) { |
1367 | munmap(mmaps[map_idx], mmap_size); | |
1368 | mmaps[map_idx] = NULL; | |
1369 | } | |
06aae590 | 1370 | |
0331ee0c TG |
1371 | page_offset = page_size * (head / page_size); |
1372 | file_offset += page_offset; | |
1373 | head -= page_offset; | |
06aae590 ACM |
1374 | goto remap; |
1375 | } | |
1376 | ||
1377 | size = event->header.size; | |
1378 | ||
27389d78 | 1379 | if (size < sizeof(struct perf_event_header) || |
45694aa7 | 1380 | perf_session__process_event(session, event, tool, file_pos) < 0) { |
9389a460 JO |
1381 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1382 | file_offset + head, event->header.size, | |
1383 | event->header.type); | |
1384 | err = -EINVAL; | |
1385 | goto out_err; | |
06aae590 ACM |
1386 | } |
1387 | ||
1388 | head += size; | |
d6513281 | 1389 | file_pos += size; |
06aae590 | 1390 | |
55b44629 TG |
1391 | if (file_pos >= progress_next) { |
1392 | progress_next += file_size / 16; | |
ca59bcbc ACM |
1393 | ui_progress__update(file_pos, file_size, |
1394 | "Processing events..."); | |
55b44629 TG |
1395 | } |
1396 | ||
33e940a2 | 1397 | if (session_done()) |
8c16b649 | 1398 | goto out; |
33e940a2 | 1399 | |
d6513281 | 1400 | if (file_pos < file_size) |
06aae590 | 1401 | goto more; |
d6513281 | 1402 | |
8c16b649 | 1403 | out: |
c61e52ee | 1404 | /* do the final flush for ordered samples */ |
0331ee0c | 1405 | session->ordered_samples.next_flush = ULLONG_MAX; |
d25380cd | 1406 | err = flush_sample_queue(session, tool); |
06aae590 | 1407 | out_err: |
a5580f3e | 1408 | ui_progress__finish(); |
45694aa7 | 1409 | perf_session__warn_about_errors(session, tool); |
020bb75a | 1410 | perf_session_free_sample_buffers(session); |
06aae590 ACM |
1411 | return err; |
1412 | } | |
27295592 | 1413 | |
6122e4e4 | 1414 | int perf_session__process_events(struct perf_session *self, |
45694aa7 | 1415 | struct perf_tool *tool) |
6122e4e4 ACM |
1416 | { |
1417 | int err; | |
1418 | ||
1419 | if (perf_session__register_idle_thread(self) == NULL) | |
1420 | return -ENOMEM; | |
1421 | ||
8dc58101 TZ |
1422 | if (!self->fd_pipe) |
1423 | err = __perf_session__process_events(self, | |
1424 | self->header.data_offset, | |
1425 | self->header.data_size, | |
45694aa7 | 1426 | self->size, tool); |
8dc58101 | 1427 | else |
45694aa7 | 1428 | err = __perf_session__process_pipe_events(self, tool); |
88ca895d | 1429 | |
6122e4e4 ACM |
1430 | return err; |
1431 | } | |
1432 | ||
7f3be652 | 1433 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1434 | { |
93ea01c2 DA |
1435 | struct perf_evsel *evsel; |
1436 | ||
1437 | list_for_each_entry(evsel, &session->evlist->entries, node) { | |
1438 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) | |
1439 | return true; | |
27295592 ACM |
1440 | } |
1441 | ||
93ea01c2 DA |
1442 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1443 | return false; | |
27295592 | 1444 | } |
56b03f3c | 1445 | |
743eb868 ACM |
1446 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1447 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1448 | { |
1449 | char *bracket; | |
9de89fe7 | 1450 | enum map_type i; |
a1645ce1 ZY |
1451 | struct ref_reloc_sym *ref; |
1452 | ||
1453 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1454 | if (ref == NULL) | |
1455 | return -ENOMEM; | |
56b03f3c | 1456 | |
a1645ce1 ZY |
1457 | ref->name = strdup(symbol_name); |
1458 | if (ref->name == NULL) { | |
1459 | free(ref); | |
56b03f3c | 1460 | return -ENOMEM; |
a1645ce1 | 1461 | } |
56b03f3c | 1462 | |
a1645ce1 | 1463 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1464 | if (bracket) |
1465 | *bracket = '\0'; | |
1466 | ||
a1645ce1 | 1467 | ref->addr = addr; |
9de89fe7 ACM |
1468 | |
1469 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1470 | struct kmap *kmap = map__kmap(maps[i]); |
1471 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1472 | } |
1473 | ||
56b03f3c ACM |
1474 | return 0; |
1475 | } | |
1f626bc3 ACM |
1476 | |
1477 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) | |
1478 | { | |
876650e6 | 1479 | return machines__fprintf_dsos(&self->machines, fp); |
1f626bc3 | 1480 | } |
f869097e ACM |
1481 | |
1482 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, | |
417c2ff6 | 1483 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1484 | { |
876650e6 | 1485 | return machines__fprintf_dsos_buildid(&self->machines, fp, skip, parm); |
f869097e | 1486 | } |
e248de33 ACM |
1487 | |
1488 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1489 | { | |
1490 | struct perf_evsel *pos; | |
1491 | size_t ret = fprintf(fp, "Aggregated stats:\n"); | |
1492 | ||
28a6b6aa | 1493 | ret += events_stats__fprintf(&session->stats, fp); |
e248de33 ACM |
1494 | |
1495 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
7289f83c | 1496 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
52168eea | 1497 | ret += events_stats__fprintf(&pos->hists.stats, fp); |
e248de33 ACM |
1498 | } |
1499 | ||
1500 | return ret; | |
1501 | } | |
c0230b2b | 1502 | |
b424eba2 ACM |
1503 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1504 | { | |
1505 | /* | |
1506 | * FIXME: Here we have to actually print all the machines in this | |
1507 | * session, not just the host... | |
1508 | */ | |
876650e6 | 1509 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1510 | } |
1511 | ||
9cbdb702 DA |
1512 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1513 | unsigned int type) | |
1514 | { | |
1515 | struct perf_evsel *pos; | |
1516 | ||
1517 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
1518 | if (pos->attr.type == type) | |
1519 | return pos; | |
1520 | } | |
1521 | return NULL; | |
1522 | } | |
1523 | ||
71ad0f5e JO |
1524 | void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event, |
1525 | struct perf_sample *sample, struct machine *machine, | |
307cbb92 | 1526 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b DA |
1527 | { |
1528 | struct addr_location al; | |
c0230b2b | 1529 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1530 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1531 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1532 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1533 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 DA |
1534 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
1535 | char s = print_oneline ? ' ' : '\t'; | |
c0230b2b | 1536 | |
e44baa3e | 1537 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { |
c0230b2b DA |
1538 | error("problem processing %d event, skipping it.\n", |
1539 | event->header.type); | |
1540 | return; | |
1541 | } | |
1542 | ||
1543 | if (symbol_conf.use_callchain && sample->callchain) { | |
1544 | ||
71ad0f5e | 1545 | if (machine__resolve_callchain(machine, evsel, al.thread, |
b21484f1 | 1546 | sample, NULL, NULL) != 0) { |
c0230b2b DA |
1547 | if (verbose) |
1548 | error("Failed to resolve callchain. Skipping\n"); | |
1549 | return; | |
1550 | } | |
47260645 | 1551 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1552 | |
307cbb92 | 1553 | while (stack_depth) { |
47260645 | 1554 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1555 | if (!node) |
1556 | break; | |
1557 | ||
a6ffaf91 | 1558 | if (print_ip) |
b0b35f01 | 1559 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1560 | |
787bef17 | 1561 | if (print_sym) { |
547a92e0 | 1562 | printf(" "); |
251f426f DA |
1563 | if (print_symoffset) { |
1564 | al.addr = node->ip; | |
0b8c25d9 | 1565 | al.map = node->map; |
251f426f DA |
1566 | symbol__fprintf_symname_offs(node->sym, &al, stdout); |
1567 | } else | |
1568 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1569 | } |
251f426f | 1570 | |
610723f2 | 1571 | if (print_dso) { |
547a92e0 | 1572 | printf(" ("); |
52deff71 | 1573 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1574 | printf(")"); |
787bef17 | 1575 | } |
b0b35f01 DA |
1576 | |
1577 | if (!print_oneline) | |
1578 | printf("\n"); | |
c0230b2b | 1579 | |
47260645 | 1580 | callchain_cursor_advance(&callchain_cursor); |
307cbb92 DA |
1581 | |
1582 | stack_depth--; | |
c0230b2b DA |
1583 | } |
1584 | ||
1585 | } else { | |
a6ffaf91 DA |
1586 | if (print_ip) |
1587 | printf("%16" PRIx64, sample->ip); | |
1588 | ||
787bef17 | 1589 | if (print_sym) { |
547a92e0 | 1590 | printf(" "); |
a978f2ab AN |
1591 | if (print_symoffset) |
1592 | symbol__fprintf_symname_offs(al.sym, &al, | |
1593 | stdout); | |
1594 | else | |
1595 | symbol__fprintf_symname(al.sym, stdout); | |
610723f2 DA |
1596 | } |
1597 | ||
1598 | if (print_dso) { | |
547a92e0 AN |
1599 | printf(" ("); |
1600 | map__fprintf_dsoname(al.map, stdout); | |
1601 | printf(")"); | |
787bef17 | 1602 | } |
c0230b2b DA |
1603 | } |
1604 | } | |
5d67be97 AB |
1605 | |
1606 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1607 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1608 | { | |
1609 | int i; | |
1610 | struct cpu_map *map; | |
1611 | ||
1612 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1613 | struct perf_evsel *evsel; | |
1614 | ||
1615 | evsel = perf_session__find_first_evtype(session, i); | |
1616 | if (!evsel) | |
1617 | continue; | |
1618 | ||
1619 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1620 | pr_err("File does not contain CPU events. " | |
1621 | "Remove -c option to proceed.\n"); | |
1622 | return -1; | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1627 | if (map == NULL) { |
1628 | pr_err("Invalid cpu_list\n"); | |
1629 | return -1; | |
1630 | } | |
5d67be97 AB |
1631 | |
1632 | for (i = 0; i < map->nr; i++) { | |
1633 | int cpu = map->map[i]; | |
1634 | ||
1635 | if (cpu >= MAX_NR_CPUS) { | |
1636 | pr_err("Requested CPU %d too large. " | |
1637 | "Consider raising MAX_NR_CPUS\n", cpu); | |
1638 | return -1; | |
1639 | } | |
1640 | ||
1641 | set_bit(cpu, cpu_bitmap); | |
1642 | } | |
1643 | ||
1644 | return 0; | |
1645 | } | |
fbe96f29 SE |
1646 | |
1647 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1648 | bool full) | |
1649 | { | |
1650 | struct stat st; | |
1651 | int ret; | |
1652 | ||
1653 | if (session == NULL || fp == NULL) | |
1654 | return; | |
1655 | ||
1656 | ret = fstat(session->fd, &st); | |
1657 | if (ret == -1) | |
1658 | return; | |
1659 | ||
1660 | fprintf(fp, "# ========\n"); | |
1661 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1662 | perf_header__fprintf_info(session, fp, full); | |
1663 | fprintf(fp, "# ========\n#\n"); | |
1664 | } | |
da378962 ACM |
1665 | |
1666 | ||
1667 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1668 | const struct perf_evsel_str_handler *assocs, | |
1669 | size_t nr_assocs) | |
1670 | { | |
da378962 | 1671 | struct perf_evsel *evsel; |
da378962 ACM |
1672 | size_t i; |
1673 | int err; | |
1674 | ||
1675 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1676 | /* |
1677 | * Adding a handler for an event not in the session, | |
1678 | * just ignore it. | |
1679 | */ | |
1680 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1681 | if (evsel == NULL) |
ccf53eac | 1682 | continue; |
da378962 ACM |
1683 | |
1684 | err = -EEXIST; | |
1685 | if (evsel->handler.func != NULL) | |
ccf53eac | 1686 | goto out; |
da378962 | 1687 | evsel->handler.func = assocs[i].handler; |
da378962 ACM |
1688 | } |
1689 | ||
1690 | err = 0; | |
1691 | out: | |
1692 | return err; | |
da378962 | 1693 | } |