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