Commit | Line | Data |
---|---|---|
b8f46c5a XG |
1 | #define _FILE_OFFSET_BITS 64 |
2 | ||
94c744b6 ACM |
3 | #include <linux/kernel.h> |
4 | ||
ba21594c | 5 | #include <byteswap.h> |
94c744b6 ACM |
6 | #include <unistd.h> |
7 | #include <sys/types.h> | |
a41794cd | 8 | #include <sys/mman.h> |
94c744b6 | 9 | |
e248de33 ACM |
10 | #include "evlist.h" |
11 | #include "evsel.h" | |
94c744b6 | 12 | #include "session.h" |
45694aa7 | 13 | #include "tool.h" |
a328626b | 14 | #include "sort.h" |
94c744b6 | 15 | #include "util.h" |
5d67be97 | 16 | #include "cpumap.h" |
da378962 | 17 | #include "event-parse.h" |
94c744b6 | 18 | |
bde09467 ACM |
19 | int perf_session__parse_sample(struct perf_session *session, |
20 | const union perf_event *event, | |
21 | struct perf_sample *sample) | |
22 | { | |
23 | struct perf_evsel *first; | |
24 | first = list_entry(session->evlist->entries.next, struct perf_evsel, node); | |
25 | ||
26 | return perf_event__parse_sample(event, session->sample_type, | |
27 | first->sample_size, | |
28 | session->sample_id_all, sample, | |
29 | session->header.needs_swap); | |
30 | } | |
31 | ||
94c744b6 ACM |
32 | static int perf_session__open(struct perf_session *self, bool force) |
33 | { | |
34 | struct stat input_stat; | |
35 | ||
8dc58101 TZ |
36 | if (!strcmp(self->filename, "-")) { |
37 | self->fd_pipe = true; | |
38 | self->fd = STDIN_FILENO; | |
39 | ||
a91e5431 | 40 | if (perf_session__read_header(self, self->fd) < 0) |
69996df4 | 41 | pr_err("incompatible file format (rerun with -v to learn more)"); |
8dc58101 TZ |
42 | |
43 | return 0; | |
44 | } | |
45 | ||
f887f301 | 46 | self->fd = open(self->filename, O_RDONLY); |
94c744b6 | 47 | if (self->fd < 0) { |
0f2c3de2 AI |
48 | int err = errno; |
49 | ||
50 | pr_err("failed to open %s: %s", self->filename, strerror(err)); | |
51 | if (err == ENOENT && !strcmp(self->filename, "perf.data")) | |
94c744b6 ACM |
52 | pr_err(" (try 'perf record' first)"); |
53 | pr_err("\n"); | |
54 | return -errno; | |
55 | } | |
56 | ||
57 | if (fstat(self->fd, &input_stat) < 0) | |
58 | goto out_close; | |
59 | ||
60 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { | |
61 | pr_err("file %s not owned by current user or root\n", | |
62 | self->filename); | |
63 | goto out_close; | |
64 | } | |
65 | ||
66 | if (!input_stat.st_size) { | |
67 | pr_info("zero-sized file (%s), nothing to do!\n", | |
68 | self->filename); | |
69 | goto out_close; | |
70 | } | |
71 | ||
a91e5431 | 72 | if (perf_session__read_header(self, self->fd) < 0) { |
69996df4 | 73 | pr_err("incompatible file format (rerun with -v to learn more)"); |
94c744b6 ACM |
74 | goto out_close; |
75 | } | |
76 | ||
c2a70653 ACM |
77 | if (!perf_evlist__valid_sample_type(self->evlist)) { |
78 | pr_err("non matching sample_type"); | |
79 | goto out_close; | |
80 | } | |
81 | ||
82 | if (!perf_evlist__valid_sample_id_all(self->evlist)) { | |
83 | pr_err("non matching sample_id_all"); | |
84 | goto out_close; | |
85 | } | |
86 | ||
94c744b6 ACM |
87 | self->size = input_stat.st_size; |
88 | return 0; | |
89 | ||
90 | out_close: | |
91 | close(self->fd); | |
92 | self->fd = -1; | |
93 | return -1; | |
94 | } | |
95 | ||
9c90a61c ACM |
96 | void perf_session__update_sample_type(struct perf_session *self) |
97 | { | |
a91e5431 ACM |
98 | self->sample_type = perf_evlist__sample_type(self->evlist); |
99 | self->sample_id_all = perf_evlist__sample_id_all(self->evlist); | |
81e36bff | 100 | self->id_hdr_size = perf_evlist__id_hdr_size(self->evlist); |
743eb868 | 101 | self->host_machine.id_hdr_size = self->id_hdr_size; |
adb5d2a4 | 102 | machines__set_id_hdr_size(&self->machines, self->id_hdr_size); |
9c90a61c ACM |
103 | } |
104 | ||
a1645ce1 ZY |
105 | int perf_session__create_kernel_maps(struct perf_session *self) |
106 | { | |
d118f8ba | 107 | int ret = machine__create_kernel_maps(&self->host_machine); |
a1645ce1 | 108 | |
a1645ce1 | 109 | if (ret >= 0) |
d118f8ba | 110 | ret = machines__create_guest_kernel_maps(&self->machines); |
a1645ce1 ZY |
111 | return ret; |
112 | } | |
113 | ||
076c6e45 ACM |
114 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
115 | { | |
116 | machine__destroy_kernel_maps(&self->host_machine); | |
117 | machines__destroy_guest_kernel_maps(&self->machines); | |
118 | } | |
119 | ||
21ef97f0 IM |
120 | struct perf_session *perf_session__new(const char *filename, int mode, |
121 | bool force, bool repipe, | |
45694aa7 | 122 | struct perf_tool *tool) |
94c744b6 | 123 | { |
efad1415 RR |
124 | struct perf_session *self; |
125 | struct stat st; | |
126 | size_t len; | |
127 | ||
128 | if (!filename || !strlen(filename)) { | |
129 | if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) | |
130 | filename = "-"; | |
131 | else | |
132 | filename = "perf.data"; | |
133 | } | |
134 | ||
135 | len = strlen(filename); | |
136 | self = zalloc(sizeof(*self) + len); | |
94c744b6 ACM |
137 | |
138 | if (self == NULL) | |
139 | goto out; | |
140 | ||
94c744b6 | 141 | memcpy(self->filename, filename, len); |
55b44629 TG |
142 | /* |
143 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
144 | * slices. On 32bit we use 32MB. | |
145 | */ | |
146 | #if BITS_PER_LONG == 64 | |
147 | self->mmap_window = ULLONG_MAX; | |
148 | #else | |
149 | self->mmap_window = 32 * 1024 * 1024ULL; | |
150 | #endif | |
23346f21 | 151 | self->machines = RB_ROOT; |
454c407e | 152 | self->repipe = repipe; |
a1225dec | 153 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
020bb75a | 154 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
5c891f38 | 155 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
1f626bc3 | 156 | machine__init(&self->host_machine, "", HOST_KERNEL_ID); |
4bf9ce1b | 157 | hists__init(&self->hists); |
94c744b6 | 158 | |
64abebf7 ACM |
159 | if (mode == O_RDONLY) { |
160 | if (perf_session__open(self, force) < 0) | |
161 | goto out_delete; | |
a91e5431 | 162 | perf_session__update_sample_type(self); |
64abebf7 ACM |
163 | } else if (mode == O_WRONLY) { |
164 | /* | |
165 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 166 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 ACM |
167 | */ |
168 | if (perf_session__create_kernel_maps(self) < 0) | |
169 | goto out_delete; | |
170 | } | |
d549c769 | 171 | |
45694aa7 ACM |
172 | if (tool && tool->ordering_requires_timestamps && |
173 | tool->ordered_samples && !self->sample_id_all) { | |
21ef97f0 | 174 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
45694aa7 | 175 | tool->ordered_samples = false; |
21ef97f0 IM |
176 | } |
177 | ||
94c744b6 ACM |
178 | out: |
179 | return self; | |
4aa65636 ACM |
180 | out_delete: |
181 | perf_session__delete(self); | |
182 | return NULL; | |
94c744b6 ACM |
183 | } |
184 | ||
b424eba2 | 185 | static void machine__delete_dead_threads(struct machine *machine) |
d65a458b ACM |
186 | { |
187 | struct thread *n, *t; | |
188 | ||
b424eba2 | 189 | list_for_each_entry_safe(t, n, &machine->dead_threads, node) { |
d65a458b ACM |
190 | list_del(&t->node); |
191 | thread__delete(t); | |
192 | } | |
193 | } | |
194 | ||
b424eba2 ACM |
195 | static void perf_session__delete_dead_threads(struct perf_session *session) |
196 | { | |
197 | machine__delete_dead_threads(&session->host_machine); | |
198 | } | |
199 | ||
200 | static void machine__delete_threads(struct machine *self) | |
d65a458b ACM |
201 | { |
202 | struct rb_node *nd = rb_first(&self->threads); | |
203 | ||
204 | while (nd) { | |
205 | struct thread *t = rb_entry(nd, struct thread, rb_node); | |
206 | ||
207 | rb_erase(&t->rb_node, &self->threads); | |
208 | nd = rb_next(nd); | |
209 | thread__delete(t); | |
210 | } | |
211 | } | |
212 | ||
b424eba2 ACM |
213 | static void perf_session__delete_threads(struct perf_session *session) |
214 | { | |
215 | machine__delete_threads(&session->host_machine); | |
216 | } | |
217 | ||
94c744b6 ACM |
218 | void perf_session__delete(struct perf_session *self) |
219 | { | |
076c6e45 | 220 | perf_session__destroy_kernel_maps(self); |
d65a458b ACM |
221 | perf_session__delete_dead_threads(self); |
222 | perf_session__delete_threads(self); | |
223 | machine__exit(&self->host_machine); | |
94c744b6 ACM |
224 | close(self->fd); |
225 | free(self); | |
226 | } | |
a328626b | 227 | |
b424eba2 | 228 | void machine__remove_thread(struct machine *self, struct thread *th) |
720a3aeb | 229 | { |
70597f21 | 230 | self->last_match = NULL; |
720a3aeb ACM |
231 | rb_erase(&th->rb_node, &self->threads); |
232 | /* | |
233 | * We may have references to this thread, for instance in some hist_entry | |
234 | * instances, so just move them to a separate list. | |
235 | */ | |
236 | list_add_tail(&th->node, &self->dead_threads); | |
237 | } | |
238 | ||
a328626b ACM |
239 | static bool symbol__match_parent_regex(struct symbol *sym) |
240 | { | |
241 | if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) | |
242 | return 1; | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
b5387528 RAV |
247 | static const u8 cpumodes[] = { |
248 | PERF_RECORD_MISC_USER, | |
249 | PERF_RECORD_MISC_KERNEL, | |
250 | PERF_RECORD_MISC_GUEST_USER, | |
251 | PERF_RECORD_MISC_GUEST_KERNEL | |
252 | }; | |
253 | #define NCPUMODES (sizeof(cpumodes)/sizeof(u8)) | |
254 | ||
255 | static void ip__resolve_ams(struct machine *self, struct thread *thread, | |
256 | struct addr_map_symbol *ams, | |
257 | u64 ip) | |
258 | { | |
259 | struct addr_location al; | |
260 | size_t i; | |
261 | u8 m; | |
262 | ||
263 | memset(&al, 0, sizeof(al)); | |
264 | ||
265 | for (i = 0; i < NCPUMODES; i++) { | |
266 | m = cpumodes[i]; | |
267 | /* | |
268 | * We cannot use the header.misc hint to determine whether a | |
269 | * branch stack address is user, kernel, guest, hypervisor. | |
270 | * Branches may straddle the kernel/user/hypervisor boundaries. | |
271 | * Thus, we have to try consecutively until we find a match | |
272 | * or else, the symbol is unknown | |
273 | */ | |
274 | thread__find_addr_location(thread, self, m, MAP__FUNCTION, | |
275 | ip, &al, NULL); | |
276 | if (al.sym) | |
277 | goto found; | |
278 | } | |
279 | found: | |
280 | ams->addr = ip; | |
a68c2c58 | 281 | ams->al_addr = al.addr; |
b5387528 RAV |
282 | ams->sym = al.sym; |
283 | ams->map = al.map; | |
284 | } | |
285 | ||
286 | struct branch_info *machine__resolve_bstack(struct machine *self, | |
287 | struct thread *thr, | |
288 | struct branch_stack *bs) | |
289 | { | |
290 | struct branch_info *bi; | |
291 | unsigned int i; | |
292 | ||
293 | bi = calloc(bs->nr, sizeof(struct branch_info)); | |
294 | if (!bi) | |
295 | return NULL; | |
296 | ||
297 | for (i = 0; i < bs->nr; i++) { | |
298 | ip__resolve_ams(self, thr, &bi[i].to, bs->entries[i].to); | |
299 | ip__resolve_ams(self, thr, &bi[i].from, bs->entries[i].from); | |
300 | bi[i].flags = bs->entries[i].flags; | |
301 | } | |
302 | return bi; | |
303 | } | |
304 | ||
47260645 | 305 | int machine__resolve_callchain(struct machine *self, |
743eb868 ACM |
306 | struct thread *thread, |
307 | struct ip_callchain *chain, | |
308 | struct symbol **parent) | |
a328626b ACM |
309 | { |
310 | u8 cpumode = PERF_RECORD_MISC_USER; | |
a328626b | 311 | unsigned int i; |
1b3a0e95 | 312 | int err; |
a328626b | 313 | |
47260645 | 314 | callchain_cursor_reset(&callchain_cursor); |
a328626b | 315 | |
114067b6 NK |
316 | if (chain->nr > PERF_MAX_STACK_DEPTH) { |
317 | pr_warning("corrupted callchain. skipping...\n"); | |
318 | return 0; | |
319 | } | |
320 | ||
a328626b | 321 | for (i = 0; i < chain->nr; i++) { |
d797fdc5 | 322 | u64 ip; |
a328626b ACM |
323 | struct addr_location al; |
324 | ||
d797fdc5 SL |
325 | if (callchain_param.order == ORDER_CALLEE) |
326 | ip = chain->ips[i]; | |
327 | else | |
328 | ip = chain->ips[chain->nr - i - 1]; | |
329 | ||
a328626b ACM |
330 | if (ip >= PERF_CONTEXT_MAX) { |
331 | switch (ip) { | |
332 | case PERF_CONTEXT_HV: | |
333 | cpumode = PERF_RECORD_MISC_HYPERVISOR; break; | |
334 | case PERF_CONTEXT_KERNEL: | |
335 | cpumode = PERF_RECORD_MISC_KERNEL; break; | |
336 | case PERF_CONTEXT_USER: | |
337 | cpumode = PERF_RECORD_MISC_USER; break; | |
338 | default: | |
114067b6 NK |
339 | pr_debug("invalid callchain context: " |
340 | "%"PRId64"\n", (s64) ip); | |
341 | /* | |
342 | * It seems the callchain is corrupted. | |
343 | * Discard all. | |
344 | */ | |
345 | callchain_cursor_reset(&callchain_cursor); | |
346 | return 0; | |
a328626b ACM |
347 | } |
348 | continue; | |
349 | } | |
350 | ||
a1645ce1 | 351 | al.filtered = false; |
a328626b | 352 | thread__find_addr_location(thread, self, cpumode, |
743eb868 | 353 | MAP__FUNCTION, ip, &al, NULL); |
a328626b ACM |
354 | if (al.sym != NULL) { |
355 | if (sort__has_parent && !*parent && | |
356 | symbol__match_parent_regex(al.sym)) | |
357 | *parent = al.sym; | |
d599db3f | 358 | if (!symbol_conf.use_callchain) |
a328626b | 359 | break; |
a328626b | 360 | } |
1b3a0e95 | 361 | |
47260645 | 362 | err = callchain_cursor_append(&callchain_cursor, |
1b3a0e95 FW |
363 | ip, al.map, al.sym); |
364 | if (err) | |
365 | return err; | |
a328626b ACM |
366 | } |
367 | ||
1b3a0e95 | 368 | return 0; |
a328626b | 369 | } |
06aae590 | 370 | |
d20deb64 ACM |
371 | static int process_event_synth_tracing_data_stub(union perf_event *event __used, |
372 | struct perf_session *session __used) | |
373 | { | |
374 | dump_printf(": unhandled!\n"); | |
375 | return 0; | |
376 | } | |
377 | ||
10d0f086 ACM |
378 | static int process_event_synth_attr_stub(union perf_event *event __used, |
379 | struct perf_evlist **pevlist __used) | |
380 | { | |
381 | dump_printf(": unhandled!\n"); | |
382 | return 0; | |
383 | } | |
384 | ||
45694aa7 | 385 | static int process_event_sample_stub(struct perf_tool *tool __used, |
d20deb64 | 386 | union perf_event *event __used, |
9e69c210 ACM |
387 | struct perf_sample *sample __used, |
388 | struct perf_evsel *evsel __used, | |
743eb868 | 389 | struct machine *machine __used) |
9e69c210 ACM |
390 | { |
391 | dump_printf(": unhandled!\n"); | |
392 | return 0; | |
393 | } | |
394 | ||
45694aa7 | 395 | static int process_event_stub(struct perf_tool *tool __used, |
d20deb64 | 396 | union perf_event *event __used, |
8d50e5b4 | 397 | struct perf_sample *sample __used, |
743eb868 | 398 | struct machine *machine __used) |
06aae590 ACM |
399 | { |
400 | dump_printf(": unhandled!\n"); | |
401 | return 0; | |
402 | } | |
403 | ||
45694aa7 | 404 | static int process_finished_round_stub(struct perf_tool *tool __used, |
d20deb64 | 405 | union perf_event *event __used, |
743eb868 ACM |
406 | struct perf_session *perf_session __used) |
407 | { | |
408 | dump_printf(": unhandled!\n"); | |
409 | return 0; | |
410 | } | |
411 | ||
45694aa7 | 412 | static int process_event_type_stub(struct perf_tool *tool __used, |
743eb868 | 413 | union perf_event *event __used) |
d6b17beb FW |
414 | { |
415 | dump_printf(": unhandled!\n"); | |
416 | return 0; | |
417 | } | |
418 | ||
45694aa7 | 419 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
420 | union perf_event *event, |
421 | struct perf_session *session); | |
d6b17beb | 422 | |
45694aa7 | 423 | static void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 424 | { |
45694aa7 ACM |
425 | if (tool->sample == NULL) |
426 | tool->sample = process_event_sample_stub; | |
427 | if (tool->mmap == NULL) | |
428 | tool->mmap = process_event_stub; | |
429 | if (tool->comm == NULL) | |
430 | tool->comm = process_event_stub; | |
431 | if (tool->fork == NULL) | |
432 | tool->fork = process_event_stub; | |
433 | if (tool->exit == NULL) | |
434 | tool->exit = process_event_stub; | |
435 | if (tool->lost == NULL) | |
436 | tool->lost = perf_event__process_lost; | |
437 | if (tool->read == NULL) | |
438 | tool->read = process_event_sample_stub; | |
439 | if (tool->throttle == NULL) | |
440 | tool->throttle = process_event_stub; | |
441 | if (tool->unthrottle == NULL) | |
442 | tool->unthrottle = process_event_stub; | |
443 | if (tool->attr == NULL) | |
444 | tool->attr = process_event_synth_attr_stub; | |
445 | if (tool->event_type == NULL) | |
446 | tool->event_type = process_event_type_stub; | |
447 | if (tool->tracing_data == NULL) | |
448 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
449 | if (tool->build_id == NULL) | |
450 | tool->build_id = process_finished_round_stub; | |
451 | if (tool->finished_round == NULL) { | |
452 | if (tool->ordered_samples) | |
453 | tool->finished_round = process_finished_round; | |
d6b17beb | 454 | else |
45694aa7 | 455 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 456 | } |
06aae590 | 457 | } |
80c0120a DA |
458 | |
459 | void mem_bswap_32(void *src, int byte_size) | |
460 | { | |
461 | u32 *m = src; | |
462 | while (byte_size > 0) { | |
463 | *m = bswap_32(*m); | |
464 | byte_size -= sizeof(u32); | |
465 | ++m; | |
466 | } | |
467 | } | |
06aae590 | 468 | |
ba21594c ACM |
469 | void mem_bswap_64(void *src, int byte_size) |
470 | { | |
471 | u64 *m = src; | |
472 | ||
473 | while (byte_size > 0) { | |
474 | *m = bswap_64(*m); | |
475 | byte_size -= sizeof(u64); | |
476 | ++m; | |
477 | } | |
478 | } | |
479 | ||
268fb20f JO |
480 | static void swap_sample_id_all(union perf_event *event, void *data) |
481 | { | |
482 | void *end = (void *) event + event->header.size; | |
483 | int size = end - data; | |
484 | ||
485 | BUG_ON(size % sizeof(u64)); | |
486 | mem_bswap_64(data, size); | |
487 | } | |
488 | ||
489 | static void perf_event__all64_swap(union perf_event *event, | |
490 | bool sample_id_all __used) | |
ba21594c | 491 | { |
8115d60c ACM |
492 | struct perf_event_header *hdr = &event->header; |
493 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
494 | } |
495 | ||
268fb20f | 496 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 497 | { |
8115d60c ACM |
498 | event->comm.pid = bswap_32(event->comm.pid); |
499 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
500 | |
501 | if (sample_id_all) { | |
502 | void *data = &event->comm.comm; | |
503 | ||
504 | data += ALIGN(strlen(data) + 1, sizeof(u64)); | |
505 | swap_sample_id_all(event, data); | |
506 | } | |
ba21594c ACM |
507 | } |
508 | ||
268fb20f JO |
509 | static void perf_event__mmap_swap(union perf_event *event, |
510 | bool sample_id_all) | |
ba21594c | 511 | { |
8115d60c ACM |
512 | event->mmap.pid = bswap_32(event->mmap.pid); |
513 | event->mmap.tid = bswap_32(event->mmap.tid); | |
514 | event->mmap.start = bswap_64(event->mmap.start); | |
515 | event->mmap.len = bswap_64(event->mmap.len); | |
516 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
517 | |
518 | if (sample_id_all) { | |
519 | void *data = &event->mmap.filename; | |
520 | ||
521 | data += ALIGN(strlen(data) + 1, sizeof(u64)); | |
522 | swap_sample_id_all(event, data); | |
523 | } | |
ba21594c ACM |
524 | } |
525 | ||
268fb20f | 526 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 527 | { |
8115d60c ACM |
528 | event->fork.pid = bswap_32(event->fork.pid); |
529 | event->fork.tid = bswap_32(event->fork.tid); | |
530 | event->fork.ppid = bswap_32(event->fork.ppid); | |
531 | event->fork.ptid = bswap_32(event->fork.ptid); | |
532 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
533 | |
534 | if (sample_id_all) | |
535 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
536 | } |
537 | ||
268fb20f | 538 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 539 | { |
8115d60c ACM |
540 | event->read.pid = bswap_32(event->read.pid); |
541 | event->read.tid = bswap_32(event->read.tid); | |
542 | event->read.value = bswap_64(event->read.value); | |
543 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
544 | event->read.time_running = bswap_64(event->read.time_running); | |
545 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
546 | |
547 | if (sample_id_all) | |
548 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
549 | } |
550 | ||
e108c66e JO |
551 | static u8 revbyte(u8 b) |
552 | { | |
553 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
554 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
555 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
556 | return (u8) rev; | |
557 | } | |
558 | ||
559 | /* | |
560 | * XXX this is hack in attempt to carry flags bitfield | |
561 | * throught endian village. ABI says: | |
562 | * | |
563 | * Bit-fields are allocated from right to left (least to most significant) | |
564 | * on little-endian implementations and from left to right (most to least | |
565 | * significant) on big-endian implementations. | |
566 | * | |
567 | * The above seems to be byte specific, so we need to reverse each | |
568 | * byte of the bitfield. 'Internet' also says this might be implementation | |
569 | * specific and we probably need proper fix and carry perf_event_attr | |
570 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
571 | * to work for now. | |
572 | */ | |
573 | static void swap_bitfield(u8 *p, unsigned len) | |
574 | { | |
575 | unsigned i; | |
576 | ||
577 | for (i = 0; i < len; i++) { | |
578 | *p = revbyte(*p); | |
579 | p++; | |
580 | } | |
581 | } | |
582 | ||
eda3913b DA |
583 | /* exported for swapping attributes in file header */ |
584 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
585 | { | |
586 | attr->type = bswap_32(attr->type); | |
587 | attr->size = bswap_32(attr->size); | |
588 | attr->config = bswap_64(attr->config); | |
589 | attr->sample_period = bswap_64(attr->sample_period); | |
590 | attr->sample_type = bswap_64(attr->sample_type); | |
591 | attr->read_format = bswap_64(attr->read_format); | |
592 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
593 | attr->bp_type = bswap_32(attr->bp_type); | |
594 | attr->bp_addr = bswap_64(attr->bp_addr); | |
595 | attr->bp_len = bswap_64(attr->bp_len); | |
e108c66e JO |
596 | |
597 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
598 | } |
599 | ||
268fb20f JO |
600 | static void perf_event__hdr_attr_swap(union perf_event *event, |
601 | bool sample_id_all __used) | |
2c46dbb5 TZ |
602 | { |
603 | size_t size; | |
604 | ||
eda3913b | 605 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 606 | |
8115d60c ACM |
607 | size = event->header.size; |
608 | size -= (void *)&event->attr.id - (void *)event; | |
609 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
610 | } |
611 | ||
268fb20f JO |
612 | static void perf_event__event_type_swap(union perf_event *event, |
613 | bool sample_id_all __used) | |
cd19a035 | 614 | { |
8115d60c ACM |
615 | event->event_type.event_type.event_id = |
616 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
617 | } |
618 | ||
268fb20f JO |
619 | static void perf_event__tracing_data_swap(union perf_event *event, |
620 | bool sample_id_all __used) | |
9215545e | 621 | { |
8115d60c | 622 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
623 | } |
624 | ||
268fb20f JO |
625 | typedef void (*perf_event__swap_op)(union perf_event *event, |
626 | bool sample_id_all); | |
ba21594c | 627 | |
8115d60c ACM |
628 | static perf_event__swap_op perf_event__swap_ops[] = { |
629 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
630 | [PERF_RECORD_COMM] = perf_event__comm_swap, | |
631 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
632 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
633 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
634 | [PERF_RECORD_READ] = perf_event__read_swap, | |
635 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, | |
eda3913b | 636 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
637 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
638 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
639 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
640 | [PERF_RECORD_HEADER_MAX] = NULL, | |
ba21594c ACM |
641 | }; |
642 | ||
c61e52ee FW |
643 | struct sample_queue { |
644 | u64 timestamp; | |
e4c2df13 | 645 | u64 file_offset; |
8115d60c | 646 | union perf_event *event; |
c61e52ee FW |
647 | struct list_head list; |
648 | }; | |
649 | ||
020bb75a TG |
650 | static void perf_session_free_sample_buffers(struct perf_session *session) |
651 | { | |
652 | struct ordered_samples *os = &session->ordered_samples; | |
653 | ||
5c891f38 | 654 | while (!list_empty(&os->to_free)) { |
020bb75a TG |
655 | struct sample_queue *sq; |
656 | ||
5c891f38 | 657 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
020bb75a TG |
658 | list_del(&sq->list); |
659 | free(sq); | |
660 | } | |
661 | } | |
662 | ||
cbf41645 | 663 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 664 | union perf_event *event, |
8d50e5b4 | 665 | struct perf_sample *sample, |
45694aa7 | 666 | struct perf_tool *tool, |
f74725dc | 667 | u64 file_offset); |
cbf41645 | 668 | |
c61e52ee | 669 | static void flush_sample_queue(struct perf_session *s, |
45694aa7 | 670 | struct perf_tool *tool) |
c61e52ee | 671 | { |
a1225dec TG |
672 | struct ordered_samples *os = &s->ordered_samples; |
673 | struct list_head *head = &os->samples; | |
c61e52ee | 674 | struct sample_queue *tmp, *iter; |
8d50e5b4 | 675 | struct perf_sample sample; |
a1225dec TG |
676 | u64 limit = os->next_flush; |
677 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; | |
88660563 | 678 | unsigned idx = 0, progress_next = os->nr_samples / 16; |
5538beca | 679 | int ret; |
c61e52ee | 680 | |
45694aa7 | 681 | if (!tool->ordered_samples || !limit) |
c61e52ee FW |
682 | return; |
683 | ||
684 | list_for_each_entry_safe(iter, tmp, head, list) { | |
685 | if (iter->timestamp > limit) | |
a1225dec | 686 | break; |
c61e52ee | 687 | |
5538beca FW |
688 | ret = perf_session__parse_sample(s, iter->event, &sample); |
689 | if (ret) | |
690 | pr_err("Can't parse sample, err = %d\n", ret); | |
691 | else | |
45694aa7 | 692 | perf_session_deliver_event(s, iter->event, &sample, tool, |
5538beca | 693 | iter->file_offset); |
c61e52ee | 694 | |
a1225dec | 695 | os->last_flush = iter->timestamp; |
c61e52ee | 696 | list_del(&iter->list); |
020bb75a | 697 | list_add(&iter->list, &os->sample_cache); |
88660563 ACM |
698 | if (++idx >= progress_next) { |
699 | progress_next += os->nr_samples / 16; | |
700 | ui_progress__update(idx, os->nr_samples, | |
701 | "Processing time ordered events..."); | |
702 | } | |
c61e52ee | 703 | } |
a1225dec TG |
704 | |
705 | if (list_empty(head)) { | |
706 | os->last_sample = NULL; | |
707 | } else if (last_ts <= limit) { | |
708 | os->last_sample = | |
709 | list_entry(head->prev, struct sample_queue, list); | |
710 | } | |
88660563 ACM |
711 | |
712 | os->nr_samples = 0; | |
c61e52ee FW |
713 | } |
714 | ||
d6b17beb FW |
715 | /* |
716 | * When perf record finishes a pass on every buffers, it records this pseudo | |
717 | * event. | |
718 | * We record the max timestamp t found in the pass n. | |
719 | * Assuming these timestamps are monotonic across cpus, we know that if | |
720 | * a buffer still has events with timestamps below t, they will be all | |
721 | * available and then read in the pass n + 1. | |
722 | * Hence when we start to read the pass n + 2, we can safely flush every | |
723 | * events with timestamps below t. | |
724 | * | |
725 | * ============ PASS n ================= | |
726 | * CPU 0 | CPU 1 | |
727 | * | | |
728 | * cnt1 timestamps | cnt2 timestamps | |
729 | * 1 | 2 | |
730 | * 2 | 3 | |
731 | * - | 4 <--- max recorded | |
732 | * | |
733 | * ============ PASS n + 1 ============== | |
734 | * CPU 0 | CPU 1 | |
735 | * | | |
736 | * cnt1 timestamps | cnt2 timestamps | |
737 | * 3 | 5 | |
738 | * 4 | 6 | |
739 | * 5 | 7 <---- max recorded | |
740 | * | |
741 | * Flush every events below timestamp 4 | |
742 | * | |
743 | * ============ PASS n + 2 ============== | |
744 | * CPU 0 | CPU 1 | |
745 | * | | |
746 | * cnt1 timestamps | cnt2 timestamps | |
747 | * 6 | 8 | |
748 | * 7 | 9 | |
749 | * - | 10 | |
750 | * | |
751 | * Flush every events below timestamp 7 | |
752 | * etc... | |
753 | */ | |
45694aa7 | 754 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
755 | union perf_event *event __used, |
756 | struct perf_session *session) | |
d6b17beb | 757 | { |
45694aa7 | 758 | flush_sample_queue(session, tool); |
d6b17beb FW |
759 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; |
760 | ||
761 | return 0; | |
762 | } | |
763 | ||
c61e52ee | 764 | /* The queue is ordered by time */ |
cbf41645 | 765 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
c61e52ee | 766 | { |
a1225dec TG |
767 | struct ordered_samples *os = &s->ordered_samples; |
768 | struct sample_queue *sample = os->last_sample; | |
769 | u64 timestamp = new->timestamp; | |
770 | struct list_head *p; | |
c61e52ee | 771 | |
88660563 | 772 | ++os->nr_samples; |
a1225dec | 773 | os->last_sample = new; |
c61e52ee | 774 | |
a1225dec TG |
775 | if (!sample) { |
776 | list_add(&new->list, &os->samples); | |
777 | os->max_timestamp = timestamp; | |
c61e52ee FW |
778 | return; |
779 | } | |
780 | ||
781 | /* | |
a1225dec TG |
782 | * last_sample might point to some random place in the list as it's |
783 | * the last queued event. We expect that the new event is close to | |
784 | * this. | |
c61e52ee | 785 | */ |
a1225dec TG |
786 | if (sample->timestamp <= timestamp) { |
787 | while (sample->timestamp <= timestamp) { | |
788 | p = sample->list.next; | |
789 | if (p == &os->samples) { | |
790 | list_add_tail(&new->list, &os->samples); | |
791 | os->max_timestamp = timestamp; | |
792 | return; | |
793 | } | |
794 | sample = list_entry(p, struct sample_queue, list); | |
795 | } | |
796 | list_add_tail(&new->list, &sample->list); | |
797 | } else { | |
798 | while (sample->timestamp > timestamp) { | |
799 | p = sample->list.prev; | |
800 | if (p == &os->samples) { | |
801 | list_add(&new->list, &os->samples); | |
802 | return; | |
803 | } | |
804 | sample = list_entry(p, struct sample_queue, list); | |
805 | } | |
806 | list_add(&new->list, &sample->list); | |
807 | } | |
c61e52ee FW |
808 | } |
809 | ||
5c891f38 TG |
810 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
811 | ||
8115d60c | 812 | static int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
8d50e5b4 | 813 | struct perf_sample *sample, u64 file_offset) |
c61e52ee | 814 | { |
5c891f38 TG |
815 | struct ordered_samples *os = &s->ordered_samples; |
816 | struct list_head *sc = &os->sample_cache; | |
8d50e5b4 | 817 | u64 timestamp = sample->time; |
c61e52ee | 818 | struct sample_queue *new; |
c61e52ee | 819 | |
79a14c1f | 820 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
821 | return -ETIME; |
822 | ||
c61e52ee FW |
823 | if (timestamp < s->ordered_samples.last_flush) { |
824 | printf("Warning: Timestamp below last timeslice flush\n"); | |
825 | return -EINVAL; | |
826 | } | |
827 | ||
020bb75a TG |
828 | if (!list_empty(sc)) { |
829 | new = list_entry(sc->next, struct sample_queue, list); | |
830 | list_del(&new->list); | |
5c891f38 TG |
831 | } else if (os->sample_buffer) { |
832 | new = os->sample_buffer + os->sample_buffer_idx; | |
833 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) | |
834 | os->sample_buffer = NULL; | |
020bb75a | 835 | } else { |
5c891f38 TG |
836 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
837 | if (!os->sample_buffer) | |
020bb75a | 838 | return -ENOMEM; |
5c891f38 TG |
839 | list_add(&os->sample_buffer->list, &os->to_free); |
840 | os->sample_buffer_idx = 2; | |
841 | new = os->sample_buffer + 1; | |
020bb75a | 842 | } |
c61e52ee FW |
843 | |
844 | new->timestamp = timestamp; | |
e4c2df13 | 845 | new->file_offset = file_offset; |
fe174207 | 846 | new->event = event; |
c61e52ee | 847 | |
cbf41645 | 848 | __queue_event(new, s); |
640c03ce | 849 | |
640c03ce ACM |
850 | return 0; |
851 | } | |
c61e52ee | 852 | |
8d50e5b4 | 853 | static void callchain__printf(struct perf_sample *sample) |
640c03ce ACM |
854 | { |
855 | unsigned int i; | |
c61e52ee | 856 | |
9486aa38 | 857 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
640c03ce ACM |
858 | |
859 | for (i = 0; i < sample->callchain->nr; i++) | |
9486aa38 ACM |
860 | printf("..... %2d: %016" PRIx64 "\n", |
861 | i, sample->callchain->ips[i]); | |
c61e52ee FW |
862 | } |
863 | ||
b5387528 RAV |
864 | static void branch_stack__printf(struct perf_sample *sample) |
865 | { | |
866 | uint64_t i; | |
867 | ||
868 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
869 | ||
870 | for (i = 0; i < sample->branch_stack->nr; i++) | |
871 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
872 | i, sample->branch_stack->entries[i].from, | |
873 | sample->branch_stack->entries[i].to); | |
874 | } | |
875 | ||
9c90a61c | 876 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 877 | union perf_event *event, |
8d50e5b4 | 878 | struct perf_sample *sample) |
9c90a61c ACM |
879 | { |
880 | if (event->header.type != PERF_RECORD_SAMPLE && | |
881 | !session->sample_id_all) { | |
882 | fputs("-1 -1 ", stdout); | |
883 | return; | |
884 | } | |
885 | ||
886 | if ((session->sample_type & PERF_SAMPLE_CPU)) | |
887 | printf("%u ", sample->cpu); | |
888 | ||
889 | if (session->sample_type & PERF_SAMPLE_TIME) | |
9486aa38 | 890 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
891 | } |
892 | ||
8115d60c | 893 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 894 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
895 | { |
896 | if (!dump_trace) | |
897 | return; | |
898 | ||
9486aa38 ACM |
899 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
900 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
901 | |
902 | trace_event(event); | |
903 | ||
904 | if (sample) | |
905 | perf_session__print_tstamp(session, event, sample); | |
906 | ||
9486aa38 | 907 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 908 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
909 | } |
910 | ||
8115d60c | 911 | static void dump_sample(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 912 | struct perf_sample *sample) |
9aefcab0 | 913 | { |
ddbc24b7 ACM |
914 | if (!dump_trace) |
915 | return; | |
916 | ||
7cec0922 | 917 | printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 918 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 919 | sample->period, sample->addr); |
9aefcab0 TG |
920 | |
921 | if (session->sample_type & PERF_SAMPLE_CALLCHAIN) | |
ddbc24b7 | 922 | callchain__printf(sample); |
b5387528 RAV |
923 | |
924 | if (session->sample_type & PERF_SAMPLE_BRANCH_STACK) | |
925 | branch_stack__printf(sample); | |
9aefcab0 TG |
926 | } |
927 | ||
743eb868 ACM |
928 | static struct machine * |
929 | perf_session__find_machine_for_cpumode(struct perf_session *session, | |
930 | union perf_event *event) | |
931 | { | |
932 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
933 | ||
7c0f4a41 DA |
934 | if (perf_guest && |
935 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
936 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
937 | u32 pid; |
938 | ||
939 | if (event->header.type == PERF_RECORD_MMAP) | |
940 | pid = event->mmap.pid; | |
941 | else | |
942 | pid = event->ip.pid; | |
943 | ||
207b5792 | 944 | return perf_session__findnew_machine(session, pid); |
7fb0a5ee | 945 | } |
743eb868 ACM |
946 | |
947 | return perf_session__find_host_machine(session); | |
948 | } | |
949 | ||
cbf41645 | 950 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 951 | union perf_event *event, |
8d50e5b4 | 952 | struct perf_sample *sample, |
45694aa7 | 953 | struct perf_tool *tool, |
532e7269 | 954 | u64 file_offset) |
cbf41645 | 955 | { |
9e69c210 | 956 | struct perf_evsel *evsel; |
743eb868 | 957 | struct machine *machine; |
9e69c210 | 958 | |
532e7269 TG |
959 | dump_event(session, event, file_offset, sample); |
960 | ||
7b27509f ACM |
961 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
962 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { | |
963 | /* | |
964 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here | |
965 | * because the tools right now may apply filters, discarding | |
966 | * some of the samples. For consistency, in the future we | |
967 | * should have something like nr_filtered_samples and remove | |
968 | * the sample->period from total_sample_period, etc, KISS for | |
969 | * now tho. | |
970 | * | |
971 | * Also testing against NULL allows us to handle files without | |
972 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the | |
973 | * future probably it'll be a good idea to restrict event | |
974 | * processing via perf_session to files with both set. | |
975 | */ | |
976 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
977 | } | |
978 | ||
743eb868 ACM |
979 | machine = perf_session__find_machine_for_cpumode(session, event); |
980 | ||
cbf41645 TG |
981 | switch (event->header.type) { |
982 | case PERF_RECORD_SAMPLE: | |
532e7269 | 983 | dump_sample(session, event, sample); |
9e69c210 ACM |
984 | if (evsel == NULL) { |
985 | ++session->hists.stats.nr_unknown_id; | |
6782206b | 986 | return 0; |
9e69c210 | 987 | } |
0c095715 JR |
988 | if (machine == NULL) { |
989 | ++session->hists.stats.nr_unprocessable_samples; | |
6782206b | 990 | return 0; |
0c095715 | 991 | } |
45694aa7 | 992 | return tool->sample(tool, event, sample, evsel, machine); |
cbf41645 | 993 | case PERF_RECORD_MMAP: |
45694aa7 | 994 | return tool->mmap(tool, event, sample, machine); |
cbf41645 | 995 | case PERF_RECORD_COMM: |
45694aa7 | 996 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 997 | case PERF_RECORD_FORK: |
45694aa7 | 998 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 999 | case PERF_RECORD_EXIT: |
45694aa7 | 1000 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1001 | case PERF_RECORD_LOST: |
45694aa7 | 1002 | if (tool->lost == perf_event__process_lost) |
743eb868 | 1003 | session->hists.stats.total_lost += event->lost.lost; |
45694aa7 | 1004 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1005 | case PERF_RECORD_READ: |
45694aa7 | 1006 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1007 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1008 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1009 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1010 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 TG |
1011 | default: |
1012 | ++session->hists.stats.nr_unknown_events; | |
1013 | return -1; | |
1014 | } | |
1015 | } | |
1016 | ||
3dfc2c0a | 1017 | static int perf_session__preprocess_sample(struct perf_session *session, |
8115d60c | 1018 | union perf_event *event, struct perf_sample *sample) |
3dfc2c0a TG |
1019 | { |
1020 | if (event->header.type != PERF_RECORD_SAMPLE || | |
1021 | !(session->sample_type & PERF_SAMPLE_CALLCHAIN)) | |
1022 | return 0; | |
1023 | ||
1024 | if (!ip_callchain__valid(sample->callchain, event)) { | |
1025 | pr_debug("call-chain problem with event, skipping it.\n"); | |
1026 | ++session->hists.stats.nr_invalid_chains; | |
1027 | session->hists.stats.total_invalid_chains += sample->period; | |
1028 | return -EINVAL; | |
1029 | } | |
1030 | return 0; | |
1031 | } | |
1032 | ||
8115d60c | 1033 | static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, |
45694aa7 | 1034 | struct perf_tool *tool, u64 file_offset) |
06aae590 | 1035 | { |
10d0f086 ACM |
1036 | int err; |
1037 | ||
ba74f064 | 1038 | dump_event(session, event, file_offset, NULL); |
06aae590 | 1039 | |
cbf41645 | 1040 | /* These events are processed right away */ |
06aae590 | 1041 | switch (event->header.type) { |
2c46dbb5 | 1042 | case PERF_RECORD_HEADER_ATTR: |
45694aa7 | 1043 | err = tool->attr(event, &session->evlist); |
10d0f086 ACM |
1044 | if (err == 0) |
1045 | perf_session__update_sample_type(session); | |
1046 | return err; | |
cd19a035 | 1047 | case PERF_RECORD_HEADER_EVENT_TYPE: |
45694aa7 | 1048 | return tool->event_type(tool, event); |
9215545e TZ |
1049 | case PERF_RECORD_HEADER_TRACING_DATA: |
1050 | /* setup for reading amidst mmap */ | |
cbf41645 | 1051 | lseek(session->fd, file_offset, SEEK_SET); |
45694aa7 | 1052 | return tool->tracing_data(event, session); |
c7929e47 | 1053 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1054 | return tool->build_id(tool, event, session); |
d6b17beb | 1055 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 1056 | return tool->finished_round(tool, event, session); |
06aae590 | 1057 | default: |
ba74f064 | 1058 | return -EINVAL; |
06aae590 | 1059 | } |
ba74f064 TG |
1060 | } |
1061 | ||
268fb20f JO |
1062 | static void event_swap(union perf_event *event, bool sample_id_all) |
1063 | { | |
1064 | perf_event__swap_op swap; | |
1065 | ||
1066 | swap = perf_event__swap_ops[event->header.type]; | |
1067 | if (swap) | |
1068 | swap(event, sample_id_all); | |
1069 | } | |
1070 | ||
ba74f064 | 1071 | static int perf_session__process_event(struct perf_session *session, |
8115d60c | 1072 | union perf_event *event, |
45694aa7 | 1073 | struct perf_tool *tool, |
ba74f064 TG |
1074 | u64 file_offset) |
1075 | { | |
8d50e5b4 | 1076 | struct perf_sample sample; |
ba74f064 TG |
1077 | int ret; |
1078 | ||
268fb20f JO |
1079 | if (session->header.needs_swap) |
1080 | event_swap(event, session->sample_id_all); | |
ba74f064 TG |
1081 | |
1082 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1083 | return -EINVAL; | |
1084 | ||
1085 | hists__inc_nr_events(&session->hists, event->header.type); | |
1086 | ||
1087 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1088 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1089 | |
3dfc2c0a TG |
1090 | /* |
1091 | * For all kernel events we get the sample data | |
1092 | */ | |
5538beca FW |
1093 | ret = perf_session__parse_sample(session, event, &sample); |
1094 | if (ret) | |
1095 | return ret; | |
3dfc2c0a TG |
1096 | |
1097 | /* Preprocess sample records - precheck callchains */ | |
1098 | if (perf_session__preprocess_sample(session, event, &sample)) | |
1099 | return 0; | |
1100 | ||
45694aa7 | 1101 | if (tool->ordered_samples) { |
e4c2df13 TG |
1102 | ret = perf_session_queue_event(session, event, &sample, |
1103 | file_offset); | |
cbf41645 TG |
1104 | if (ret != -ETIME) |
1105 | return ret; | |
1106 | } | |
1107 | ||
45694aa7 | 1108 | return perf_session_deliver_event(session, event, &sample, tool, |
f74725dc | 1109 | file_offset); |
06aae590 ACM |
1110 | } |
1111 | ||
ba21594c ACM |
1112 | void perf_event_header__bswap(struct perf_event_header *self) |
1113 | { | |
1114 | self->type = bswap_32(self->type); | |
1115 | self->misc = bswap_16(self->misc); | |
1116 | self->size = bswap_16(self->size); | |
1117 | } | |
1118 | ||
b424eba2 ACM |
1119 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1120 | { | |
1121 | return machine__findnew_thread(&session->host_machine, pid); | |
1122 | } | |
1123 | ||
06aae590 ACM |
1124 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
1125 | { | |
1126 | struct thread *thread = perf_session__findnew(self, 0); | |
1127 | ||
1128 | if (thread == NULL || thread__set_comm(thread, "swapper")) { | |
1129 | pr_err("problem inserting idle task.\n"); | |
1130 | thread = NULL; | |
1131 | } | |
1132 | ||
1133 | return thread; | |
1134 | } | |
1135 | ||
11095994 | 1136 | static void perf_session__warn_about_errors(const struct perf_session *session, |
45694aa7 | 1137 | const struct perf_tool *tool) |
11095994 | 1138 | { |
45694aa7 | 1139 | if (tool->lost == perf_event__process_lost && |
7b27509f ACM |
1140 | session->hists.stats.nr_events[PERF_RECORD_LOST] != 0) { |
1141 | ui__warning("Processed %d events and lost %d chunks!\n\n" | |
1142 | "Check IO/CPU overload!\n\n", | |
1143 | session->hists.stats.nr_events[0], | |
1144 | session->hists.stats.nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1145 | } |
1146 | ||
1147 | if (session->hists.stats.nr_unknown_events != 0) { | |
1148 | ui__warning("Found %u unknown events!\n\n" | |
1149 | "Is this an older tool processing a perf.data " | |
1150 | "file generated by a more recent tool?\n\n" | |
1151 | "If that is not the case, consider " | |
1152 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
1153 | session->hists.stats.nr_unknown_events); | |
1154 | } | |
1155 | ||
9e69c210 ACM |
1156 | if (session->hists.stats.nr_unknown_id != 0) { |
1157 | ui__warning("%u samples with id not present in the header\n", | |
1158 | session->hists.stats.nr_unknown_id); | |
1159 | } | |
1160 | ||
11095994 ACM |
1161 | if (session->hists.stats.nr_invalid_chains != 0) { |
1162 | ui__warning("Found invalid callchains!\n\n" | |
1163 | "%u out of %u events were discarded for this reason.\n\n" | |
1164 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
1165 | session->hists.stats.nr_invalid_chains, | |
1166 | session->hists.stats.nr_events[PERF_RECORD_SAMPLE]); | |
1167 | } | |
0c095715 JR |
1168 | |
1169 | if (session->hists.stats.nr_unprocessable_samples != 0) { | |
1170 | ui__warning("%u unprocessable samples recorded.\n" | |
1171 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
1172 | session->hists.stats.nr_unprocessable_samples); | |
1173 | } | |
11095994 ACM |
1174 | } |
1175 | ||
8dc58101 TZ |
1176 | #define session_done() (*(volatile int *)(&session_done)) |
1177 | volatile int session_done; | |
1178 | ||
1179 | static int __perf_session__process_pipe_events(struct perf_session *self, | |
45694aa7 | 1180 | struct perf_tool *tool) |
8dc58101 | 1181 | { |
444d2866 SE |
1182 | union perf_event *event; |
1183 | uint32_t size, cur_size = 0; | |
1184 | void *buf = NULL; | |
8dc58101 TZ |
1185 | int skip = 0; |
1186 | u64 head; | |
1187 | int err; | |
1188 | void *p; | |
1189 | ||
45694aa7 | 1190 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1191 | |
1192 | head = 0; | |
444d2866 SE |
1193 | cur_size = sizeof(union perf_event); |
1194 | ||
1195 | buf = malloc(cur_size); | |
1196 | if (!buf) | |
1197 | return -errno; | |
8dc58101 | 1198 | more: |
444d2866 SE |
1199 | event = buf; |
1200 | err = readn(self->fd, event, sizeof(struct perf_event_header)); | |
8dc58101 TZ |
1201 | if (err <= 0) { |
1202 | if (err == 0) | |
1203 | goto done; | |
1204 | ||
1205 | pr_err("failed to read event header\n"); | |
1206 | goto out_err; | |
1207 | } | |
1208 | ||
1209 | if (self->header.needs_swap) | |
444d2866 | 1210 | perf_event_header__bswap(&event->header); |
8dc58101 | 1211 | |
444d2866 | 1212 | size = event->header.size; |
8dc58101 TZ |
1213 | if (size == 0) |
1214 | size = 8; | |
1215 | ||
444d2866 SE |
1216 | if (size > cur_size) { |
1217 | void *new = realloc(buf, size); | |
1218 | if (!new) { | |
1219 | pr_err("failed to allocate memory to read event\n"); | |
1220 | goto out_err; | |
1221 | } | |
1222 | buf = new; | |
1223 | cur_size = size; | |
1224 | event = buf; | |
1225 | } | |
1226 | p = event; | |
8dc58101 TZ |
1227 | p += sizeof(struct perf_event_header); |
1228 | ||
794e43b5 | 1229 | if (size - sizeof(struct perf_event_header)) { |
1e7972cc | 1230 | err = readn(self->fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1231 | if (err <= 0) { |
1232 | if (err == 0) { | |
1233 | pr_err("unexpected end of event stream\n"); | |
1234 | goto done; | |
1235 | } | |
8dc58101 | 1236 | |
794e43b5 TZ |
1237 | pr_err("failed to read event data\n"); |
1238 | goto out_err; | |
1239 | } | |
8dc58101 TZ |
1240 | } |
1241 | ||
444d2866 | 1242 | if ((skip = perf_session__process_event(self, event, tool, head)) < 0) { |
9389a460 | 1243 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1244 | head, event->header.size, event->header.type); |
9389a460 JO |
1245 | err = -EINVAL; |
1246 | goto out_err; | |
8dc58101 TZ |
1247 | } |
1248 | ||
1249 | head += size; | |
1250 | ||
8dc58101 TZ |
1251 | if (skip > 0) |
1252 | head += skip; | |
1253 | ||
1254 | if (!session_done()) | |
1255 | goto more; | |
1256 | done: | |
1257 | err = 0; | |
1258 | out_err: | |
444d2866 | 1259 | free(buf); |
45694aa7 | 1260 | perf_session__warn_about_errors(self, tool); |
020bb75a | 1261 | perf_session_free_sample_buffers(self); |
8dc58101 TZ |
1262 | return err; |
1263 | } | |
1264 | ||
998bedc8 FW |
1265 | static union perf_event * |
1266 | fetch_mmaped_event(struct perf_session *session, | |
1267 | u64 head, size_t mmap_size, char *buf) | |
1268 | { | |
1269 | union perf_event *event; | |
1270 | ||
1271 | /* | |
1272 | * Ensure we have enough space remaining to read | |
1273 | * the size of the event in the headers. | |
1274 | */ | |
1275 | if (head + sizeof(event->header) > mmap_size) | |
1276 | return NULL; | |
1277 | ||
1278 | event = (union perf_event *)(buf + head); | |
1279 | ||
1280 | if (session->header.needs_swap) | |
1281 | perf_event_header__bswap(&event->header); | |
1282 | ||
1283 | if (head + event->header.size > mmap_size) | |
1284 | return NULL; | |
1285 | ||
1286 | return event; | |
1287 | } | |
1288 | ||
0331ee0c | 1289 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 | 1290 | u64 data_offset, u64 data_size, |
45694aa7 | 1291 | u64 file_size, struct perf_tool *tool) |
06aae590 | 1292 | { |
55b44629 | 1293 | u64 head, page_offset, file_offset, file_pos, progress_next; |
fe174207 | 1294 | int err, mmap_prot, mmap_flags, map_idx = 0; |
55b44629 | 1295 | size_t page_size, mmap_size; |
fe174207 | 1296 | char *buf, *mmaps[8]; |
8115d60c | 1297 | union perf_event *event; |
06aae590 | 1298 | uint32_t size; |
0331ee0c | 1299 | |
45694aa7 | 1300 | perf_tool__fill_defaults(tool); |
06aae590 | 1301 | |
1b75962e | 1302 | page_size = sysconf(_SC_PAGESIZE); |
06aae590 | 1303 | |
0331ee0c TG |
1304 | page_offset = page_size * (data_offset / page_size); |
1305 | file_offset = page_offset; | |
1306 | head = data_offset - page_offset; | |
06aae590 | 1307 | |
d6513281 TG |
1308 | if (data_offset + data_size < file_size) |
1309 | file_size = data_offset + data_size; | |
1310 | ||
55b44629 | 1311 | progress_next = file_size / 16; |
55b44629 TG |
1312 | |
1313 | mmap_size = session->mmap_window; | |
1314 | if (mmap_size > file_size) | |
1315 | mmap_size = file_size; | |
1316 | ||
fe174207 TG |
1317 | memset(mmaps, 0, sizeof(mmaps)); |
1318 | ||
ba21594c ACM |
1319 | mmap_prot = PROT_READ; |
1320 | mmap_flags = MAP_SHARED; | |
1321 | ||
0331ee0c | 1322 | if (session->header.needs_swap) { |
ba21594c ACM |
1323 | mmap_prot |= PROT_WRITE; |
1324 | mmap_flags = MAP_PRIVATE; | |
1325 | } | |
06aae590 | 1326 | remap: |
55b44629 TG |
1327 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd, |
1328 | file_offset); | |
06aae590 ACM |
1329 | if (buf == MAP_FAILED) { |
1330 | pr_err("failed to mmap file\n"); | |
1331 | err = -errno; | |
1332 | goto out_err; | |
1333 | } | |
fe174207 TG |
1334 | mmaps[map_idx] = buf; |
1335 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1336 | file_pos = file_offset + head; |
06aae590 ACM |
1337 | |
1338 | more: | |
998bedc8 FW |
1339 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1340 | if (!event) { | |
fe174207 TG |
1341 | if (mmaps[map_idx]) { |
1342 | munmap(mmaps[map_idx], mmap_size); | |
1343 | mmaps[map_idx] = NULL; | |
1344 | } | |
06aae590 | 1345 | |
0331ee0c TG |
1346 | page_offset = page_size * (head / page_size); |
1347 | file_offset += page_offset; | |
1348 | head -= page_offset; | |
06aae590 ACM |
1349 | goto remap; |
1350 | } | |
1351 | ||
1352 | size = event->header.size; | |
1353 | ||
d6513281 | 1354 | if (size == 0 || |
45694aa7 | 1355 | perf_session__process_event(session, event, tool, file_pos) < 0) { |
9389a460 JO |
1356 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1357 | file_offset + head, event->header.size, | |
1358 | event->header.type); | |
1359 | err = -EINVAL; | |
1360 | goto out_err; | |
06aae590 ACM |
1361 | } |
1362 | ||
1363 | head += size; | |
d6513281 | 1364 | file_pos += size; |
06aae590 | 1365 | |
55b44629 TG |
1366 | if (file_pos >= progress_next) { |
1367 | progress_next += file_size / 16; | |
ca59bcbc ACM |
1368 | ui_progress__update(file_pos, file_size, |
1369 | "Processing events..."); | |
55b44629 TG |
1370 | } |
1371 | ||
d6513281 | 1372 | if (file_pos < file_size) |
06aae590 | 1373 | goto more; |
d6513281 | 1374 | |
06aae590 | 1375 | err = 0; |
c61e52ee | 1376 | /* do the final flush for ordered samples */ |
0331ee0c | 1377 | session->ordered_samples.next_flush = ULLONG_MAX; |
45694aa7 | 1378 | flush_sample_queue(session, tool); |
06aae590 | 1379 | out_err: |
45694aa7 | 1380 | perf_session__warn_about_errors(session, tool); |
020bb75a | 1381 | perf_session_free_sample_buffers(session); |
06aae590 ACM |
1382 | return err; |
1383 | } | |
27295592 | 1384 | |
6122e4e4 | 1385 | int perf_session__process_events(struct perf_session *self, |
45694aa7 | 1386 | struct perf_tool *tool) |
6122e4e4 ACM |
1387 | { |
1388 | int err; | |
1389 | ||
1390 | if (perf_session__register_idle_thread(self) == NULL) | |
1391 | return -ENOMEM; | |
1392 | ||
8dc58101 TZ |
1393 | if (!self->fd_pipe) |
1394 | err = __perf_session__process_events(self, | |
1395 | self->header.data_offset, | |
1396 | self->header.data_size, | |
45694aa7 | 1397 | self->size, tool); |
8dc58101 | 1398 | else |
45694aa7 | 1399 | err = __perf_session__process_pipe_events(self, tool); |
88ca895d | 1400 | |
6122e4e4 ACM |
1401 | return err; |
1402 | } | |
1403 | ||
d549c769 | 1404 | bool perf_session__has_traces(struct perf_session *self, const char *msg) |
27295592 ACM |
1405 | { |
1406 | if (!(self->sample_type & PERF_SAMPLE_RAW)) { | |
d549c769 ACM |
1407 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1408 | return false; | |
27295592 ACM |
1409 | } |
1410 | ||
d549c769 | 1411 | return true; |
27295592 | 1412 | } |
56b03f3c | 1413 | |
743eb868 ACM |
1414 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1415 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1416 | { |
1417 | char *bracket; | |
9de89fe7 | 1418 | enum map_type i; |
a1645ce1 ZY |
1419 | struct ref_reloc_sym *ref; |
1420 | ||
1421 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1422 | if (ref == NULL) | |
1423 | return -ENOMEM; | |
56b03f3c | 1424 | |
a1645ce1 ZY |
1425 | ref->name = strdup(symbol_name); |
1426 | if (ref->name == NULL) { | |
1427 | free(ref); | |
56b03f3c | 1428 | return -ENOMEM; |
a1645ce1 | 1429 | } |
56b03f3c | 1430 | |
a1645ce1 | 1431 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1432 | if (bracket) |
1433 | *bracket = '\0'; | |
1434 | ||
a1645ce1 | 1435 | ref->addr = addr; |
9de89fe7 ACM |
1436 | |
1437 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1438 | struct kmap *kmap = map__kmap(maps[i]); |
1439 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1440 | } |
1441 | ||
56b03f3c ACM |
1442 | return 0; |
1443 | } | |
1f626bc3 ACM |
1444 | |
1445 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) | |
1446 | { | |
1447 | return __dsos__fprintf(&self->host_machine.kernel_dsos, fp) + | |
1448 | __dsos__fprintf(&self->host_machine.user_dsos, fp) + | |
1449 | machines__fprintf_dsos(&self->machines, fp); | |
1450 | } | |
f869097e ACM |
1451 | |
1452 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, | |
1453 | bool with_hits) | |
1454 | { | |
1455 | size_t ret = machine__fprintf_dsos_buildid(&self->host_machine, fp, with_hits); | |
1456 | return ret + machines__fprintf_dsos_buildid(&self->machines, fp, with_hits); | |
1457 | } | |
e248de33 ACM |
1458 | |
1459 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1460 | { | |
1461 | struct perf_evsel *pos; | |
1462 | size_t ret = fprintf(fp, "Aggregated stats:\n"); | |
1463 | ||
1464 | ret += hists__fprintf_nr_events(&session->hists, fp); | |
1465 | ||
1466 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
7289f83c | 1467 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
e248de33 ACM |
1468 | ret += hists__fprintf_nr_events(&pos->hists, fp); |
1469 | } | |
1470 | ||
1471 | return ret; | |
1472 | } | |
c0230b2b | 1473 | |
b424eba2 ACM |
1474 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1475 | { | |
1476 | /* | |
1477 | * FIXME: Here we have to actually print all the machines in this | |
1478 | * session, not just the host... | |
1479 | */ | |
1480 | return machine__fprintf(&session->host_machine, fp); | |
1481 | } | |
1482 | ||
1483 | void perf_session__remove_thread(struct perf_session *session, | |
1484 | struct thread *th) | |
1485 | { | |
1486 | /* | |
1487 | * FIXME: This one makes no sense, we need to remove the thread from | |
1488 | * the machine it belongs to, perf_session can have many machines, so | |
1489 | * doing it always on ->host_machine is wrong. Fix when auditing all | |
1490 | * the 'perf kvm' code. | |
1491 | */ | |
1492 | machine__remove_thread(&session->host_machine, th); | |
1493 | } | |
1494 | ||
9cbdb702 DA |
1495 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1496 | unsigned int type) | |
1497 | { | |
1498 | struct perf_evsel *pos; | |
1499 | ||
1500 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
1501 | if (pos->attr.type == type) | |
1502 | return pos; | |
1503 | } | |
1504 | return NULL; | |
1505 | } | |
1506 | ||
743eb868 | 1507 | void perf_event__print_ip(union perf_event *event, struct perf_sample *sample, |
a9c34a9f JO |
1508 | struct machine *machine, int print_sym, |
1509 | int print_dso, int print_symoffset) | |
c0230b2b DA |
1510 | { |
1511 | struct addr_location al; | |
c0230b2b DA |
1512 | struct callchain_cursor_node *node; |
1513 | ||
743eb868 | 1514 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
c0230b2b DA |
1515 | NULL) < 0) { |
1516 | error("problem processing %d event, skipping it.\n", | |
1517 | event->header.type); | |
1518 | return; | |
1519 | } | |
1520 | ||
1521 | if (symbol_conf.use_callchain && sample->callchain) { | |
1522 | ||
a9c34a9f | 1523 | if (machine__resolve_callchain(machine, al.thread, |
c0230b2b DA |
1524 | sample->callchain, NULL) != 0) { |
1525 | if (verbose) | |
1526 | error("Failed to resolve callchain. Skipping\n"); | |
1527 | return; | |
1528 | } | |
47260645 | 1529 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b DA |
1530 | |
1531 | while (1) { | |
47260645 | 1532 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1533 | if (!node) |
1534 | break; | |
1535 | ||
787bef17 DA |
1536 | printf("\t%16" PRIx64, node->ip); |
1537 | if (print_sym) { | |
547a92e0 AN |
1538 | printf(" "); |
1539 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 DA |
1540 | } |
1541 | if (print_dso) { | |
547a92e0 | 1542 | printf(" ("); |
52deff71 | 1543 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1544 | printf(")"); |
787bef17 DA |
1545 | } |
1546 | printf("\n"); | |
c0230b2b | 1547 | |
47260645 | 1548 | callchain_cursor_advance(&callchain_cursor); |
c0230b2b DA |
1549 | } |
1550 | ||
1551 | } else { | |
adc4bf99 | 1552 | printf("%16" PRIx64, sample->ip); |
787bef17 | 1553 | if (print_sym) { |
547a92e0 | 1554 | printf(" "); |
a978f2ab AN |
1555 | if (print_symoffset) |
1556 | symbol__fprintf_symname_offs(al.sym, &al, | |
1557 | stdout); | |
1558 | else | |
1559 | symbol__fprintf_symname(al.sym, stdout); | |
610723f2 DA |
1560 | } |
1561 | ||
1562 | if (print_dso) { | |
547a92e0 AN |
1563 | printf(" ("); |
1564 | map__fprintf_dsoname(al.map, stdout); | |
1565 | printf(")"); | |
787bef17 | 1566 | } |
c0230b2b DA |
1567 | } |
1568 | } | |
5d67be97 AB |
1569 | |
1570 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1571 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1572 | { | |
1573 | int i; | |
1574 | struct cpu_map *map; | |
1575 | ||
1576 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1577 | struct perf_evsel *evsel; | |
1578 | ||
1579 | evsel = perf_session__find_first_evtype(session, i); | |
1580 | if (!evsel) | |
1581 | continue; | |
1582 | ||
1583 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1584 | pr_err("File does not contain CPU events. " | |
1585 | "Remove -c option to proceed.\n"); | |
1586 | return -1; | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1591 | if (map == NULL) { |
1592 | pr_err("Invalid cpu_list\n"); | |
1593 | return -1; | |
1594 | } | |
5d67be97 AB |
1595 | |
1596 | for (i = 0; i < map->nr; i++) { | |
1597 | int cpu = map->map[i]; | |
1598 | ||
1599 | if (cpu >= MAX_NR_CPUS) { | |
1600 | pr_err("Requested CPU %d too large. " | |
1601 | "Consider raising MAX_NR_CPUS\n", cpu); | |
1602 | return -1; | |
1603 | } | |
1604 | ||
1605 | set_bit(cpu, cpu_bitmap); | |
1606 | } | |
1607 | ||
1608 | return 0; | |
1609 | } | |
fbe96f29 SE |
1610 | |
1611 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1612 | bool full) | |
1613 | { | |
1614 | struct stat st; | |
1615 | int ret; | |
1616 | ||
1617 | if (session == NULL || fp == NULL) | |
1618 | return; | |
1619 | ||
1620 | ret = fstat(session->fd, &st); | |
1621 | if (ret == -1) | |
1622 | return; | |
1623 | ||
1624 | fprintf(fp, "# ========\n"); | |
1625 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1626 | perf_header__fprintf_info(session, fp, full); | |
1627 | fprintf(fp, "# ========\n#\n"); | |
1628 | } | |
da378962 ACM |
1629 | |
1630 | ||
1631 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1632 | const struct perf_evsel_str_handler *assocs, | |
1633 | size_t nr_assocs) | |
1634 | { | |
1635 | struct perf_evlist *evlist = session->evlist; | |
1636 | struct event_format *format; | |
1637 | struct perf_evsel *evsel; | |
1638 | char *tracepoint, *name; | |
1639 | size_t i; | |
1640 | int err; | |
1641 | ||
1642 | for (i = 0; i < nr_assocs; i++) { | |
1643 | err = -ENOMEM; | |
1644 | tracepoint = strdup(assocs[i].name); | |
1645 | if (tracepoint == NULL) | |
1646 | goto out; | |
1647 | ||
1648 | err = -ENOENT; | |
1649 | name = strchr(tracepoint, ':'); | |
1650 | if (name == NULL) | |
1651 | goto out_free; | |
1652 | ||
1653 | *name++ = '\0'; | |
1654 | format = pevent_find_event_by_name(session->pevent, | |
1655 | tracepoint, name); | |
1656 | if (format == NULL) { | |
1657 | /* | |
1658 | * Adding a handler for an event not in the session, | |
1659 | * just ignore it. | |
1660 | */ | |
1661 | goto next; | |
1662 | } | |
1663 | ||
1664 | evsel = perf_evlist__find_tracepoint_by_id(evlist, format->id); | |
1665 | if (evsel == NULL) | |
1666 | goto next; | |
1667 | ||
1668 | err = -EEXIST; | |
1669 | if (evsel->handler.func != NULL) | |
1670 | goto out_free; | |
1671 | evsel->handler.func = assocs[i].handler; | |
1672 | next: | |
1673 | free(tracepoint); | |
1674 | } | |
1675 | ||
1676 | err = 0; | |
1677 | out: | |
1678 | return err; | |
1679 | ||
1680 | out_free: | |
1681 | free(tracepoint); | |
1682 | goto out; | |
1683 | } |