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" |
0f6a3015 | 18 | #include "perf_regs.h" |
71ad0f5e | 19 | #include "unwind.h" |
7dbf4dcf | 20 | #include "vdso.h" |
94c744b6 ACM |
21 | |
22 | static int perf_session__open(struct perf_session *self, bool force) | |
23 | { | |
24 | struct stat input_stat; | |
25 | ||
8dc58101 TZ |
26 | if (!strcmp(self->filename, "-")) { |
27 | self->fd_pipe = true; | |
28 | self->fd = STDIN_FILENO; | |
29 | ||
a91e5431 | 30 | if (perf_session__read_header(self, self->fd) < 0) |
69996df4 | 31 | pr_err("incompatible file format (rerun with -v to learn more)"); |
8dc58101 TZ |
32 | |
33 | return 0; | |
34 | } | |
35 | ||
f887f301 | 36 | self->fd = open(self->filename, O_RDONLY); |
94c744b6 | 37 | if (self->fd < 0) { |
0f2c3de2 AI |
38 | int err = errno; |
39 | ||
40 | pr_err("failed to open %s: %s", self->filename, strerror(err)); | |
41 | if (err == ENOENT && !strcmp(self->filename, "perf.data")) | |
94c744b6 ACM |
42 | pr_err(" (try 'perf record' first)"); |
43 | pr_err("\n"); | |
44 | return -errno; | |
45 | } | |
46 | ||
47 | if (fstat(self->fd, &input_stat) < 0) | |
48 | goto out_close; | |
49 | ||
50 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { | |
51 | pr_err("file %s not owned by current user or root\n", | |
52 | self->filename); | |
53 | goto out_close; | |
54 | } | |
55 | ||
56 | if (!input_stat.st_size) { | |
57 | pr_info("zero-sized file (%s), nothing to do!\n", | |
58 | self->filename); | |
59 | goto out_close; | |
60 | } | |
61 | ||
a91e5431 | 62 | if (perf_session__read_header(self, self->fd) < 0) { |
69996df4 | 63 | pr_err("incompatible file format (rerun with -v to learn more)"); |
94c744b6 ACM |
64 | goto out_close; |
65 | } | |
66 | ||
c2a70653 ACM |
67 | if (!perf_evlist__valid_sample_type(self->evlist)) { |
68 | pr_err("non matching sample_type"); | |
69 | goto out_close; | |
70 | } | |
71 | ||
72 | if (!perf_evlist__valid_sample_id_all(self->evlist)) { | |
73 | pr_err("non matching sample_id_all"); | |
74 | goto out_close; | |
75 | } | |
76 | ||
94c744b6 ACM |
77 | self->size = input_stat.st_size; |
78 | return 0; | |
79 | ||
80 | out_close: | |
81 | close(self->fd); | |
82 | self->fd = -1; | |
83 | return -1; | |
84 | } | |
85 | ||
7b56cce2 | 86 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 87 | { |
7b56cce2 ACM |
88 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
89 | ||
90 | session->host_machine.id_hdr_size = id_hdr_size; | |
91 | machines__set_id_hdr_size(&session->machines, id_hdr_size); | |
9c90a61c ACM |
92 | } |
93 | ||
a1645ce1 ZY |
94 | int perf_session__create_kernel_maps(struct perf_session *self) |
95 | { | |
d118f8ba | 96 | int ret = machine__create_kernel_maps(&self->host_machine); |
a1645ce1 | 97 | |
a1645ce1 | 98 | if (ret >= 0) |
d118f8ba | 99 | ret = machines__create_guest_kernel_maps(&self->machines); |
a1645ce1 ZY |
100 | return ret; |
101 | } | |
102 | ||
076c6e45 ACM |
103 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
104 | { | |
105 | machine__destroy_kernel_maps(&self->host_machine); | |
106 | machines__destroy_guest_kernel_maps(&self->machines); | |
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); |
55b44629 TG |
131 | /* |
132 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
133 | * slices. On 32bit we use 32MB. | |
134 | */ | |
135 | #if BITS_PER_LONG == 64 | |
136 | self->mmap_window = ULLONG_MAX; | |
137 | #else | |
138 | self->mmap_window = 32 * 1024 * 1024ULL; | |
139 | #endif | |
23346f21 | 140 | self->machines = RB_ROOT; |
454c407e | 141 | self->repipe = repipe; |
a1225dec | 142 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
020bb75a | 143 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
5c891f38 | 144 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
1f626bc3 | 145 | machine__init(&self->host_machine, "", HOST_KERNEL_ID); |
4bf9ce1b | 146 | hists__init(&self->hists); |
94c744b6 | 147 | |
64abebf7 ACM |
148 | if (mode == O_RDONLY) { |
149 | if (perf_session__open(self, force) < 0) | |
150 | goto out_delete; | |
7b56cce2 | 151 | perf_session__set_id_hdr_size(self); |
64abebf7 ACM |
152 | } else if (mode == O_WRONLY) { |
153 | /* | |
154 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 155 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 ACM |
156 | */ |
157 | if (perf_session__create_kernel_maps(self) < 0) | |
158 | goto out_delete; | |
159 | } | |
d549c769 | 160 | |
45694aa7 | 161 | if (tool && tool->ordering_requires_timestamps && |
5e562474 | 162 | tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) { |
21ef97f0 | 163 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
45694aa7 | 164 | tool->ordered_samples = false; |
21ef97f0 IM |
165 | } |
166 | ||
94c744b6 ACM |
167 | out: |
168 | return self; | |
4aa65636 ACM |
169 | out_delete: |
170 | perf_session__delete(self); | |
171 | return NULL; | |
94c744b6 ACM |
172 | } |
173 | ||
b424eba2 | 174 | static void machine__delete_dead_threads(struct machine *machine) |
d65a458b ACM |
175 | { |
176 | struct thread *n, *t; | |
177 | ||
b424eba2 | 178 | list_for_each_entry_safe(t, n, &machine->dead_threads, node) { |
d65a458b ACM |
179 | list_del(&t->node); |
180 | thread__delete(t); | |
181 | } | |
182 | } | |
183 | ||
b424eba2 ACM |
184 | static void perf_session__delete_dead_threads(struct perf_session *session) |
185 | { | |
186 | machine__delete_dead_threads(&session->host_machine); | |
187 | } | |
188 | ||
189 | static void machine__delete_threads(struct machine *self) | |
d65a458b ACM |
190 | { |
191 | struct rb_node *nd = rb_first(&self->threads); | |
192 | ||
193 | while (nd) { | |
194 | struct thread *t = rb_entry(nd, struct thread, rb_node); | |
195 | ||
196 | rb_erase(&t->rb_node, &self->threads); | |
197 | nd = rb_next(nd); | |
198 | thread__delete(t); | |
199 | } | |
200 | } | |
201 | ||
b424eba2 ACM |
202 | static void perf_session__delete_threads(struct perf_session *session) |
203 | { | |
204 | machine__delete_threads(&session->host_machine); | |
205 | } | |
206 | ||
94c744b6 ACM |
207 | void perf_session__delete(struct perf_session *self) |
208 | { | |
076c6e45 | 209 | perf_session__destroy_kernel_maps(self); |
d65a458b ACM |
210 | perf_session__delete_dead_threads(self); |
211 | perf_session__delete_threads(self); | |
212 | machine__exit(&self->host_machine); | |
94c744b6 ACM |
213 | close(self->fd); |
214 | free(self); | |
7dbf4dcf | 215 | vdso__exit(); |
94c744b6 | 216 | } |
a328626b | 217 | |
b424eba2 | 218 | void machine__remove_thread(struct machine *self, struct thread *th) |
720a3aeb | 219 | { |
70597f21 | 220 | self->last_match = NULL; |
720a3aeb ACM |
221 | rb_erase(&th->rb_node, &self->threads); |
222 | /* | |
223 | * We may have references to this thread, for instance in some hist_entry | |
224 | * instances, so just move them to a separate list. | |
225 | */ | |
226 | list_add_tail(&th->node, &self->dead_threads); | |
227 | } | |
228 | ||
a328626b ACM |
229 | static bool symbol__match_parent_regex(struct symbol *sym) |
230 | { | |
231 | if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) | |
232 | return 1; | |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
b5387528 RAV |
237 | static const u8 cpumodes[] = { |
238 | PERF_RECORD_MISC_USER, | |
239 | PERF_RECORD_MISC_KERNEL, | |
240 | PERF_RECORD_MISC_GUEST_USER, | |
241 | PERF_RECORD_MISC_GUEST_KERNEL | |
242 | }; | |
243 | #define NCPUMODES (sizeof(cpumodes)/sizeof(u8)) | |
244 | ||
245 | static void ip__resolve_ams(struct machine *self, struct thread *thread, | |
246 | struct addr_map_symbol *ams, | |
247 | u64 ip) | |
248 | { | |
249 | struct addr_location al; | |
250 | size_t i; | |
251 | u8 m; | |
252 | ||
253 | memset(&al, 0, sizeof(al)); | |
254 | ||
255 | for (i = 0; i < NCPUMODES; i++) { | |
256 | m = cpumodes[i]; | |
257 | /* | |
258 | * We cannot use the header.misc hint to determine whether a | |
259 | * branch stack address is user, kernel, guest, hypervisor. | |
260 | * Branches may straddle the kernel/user/hypervisor boundaries. | |
261 | * Thus, we have to try consecutively until we find a match | |
262 | * or else, the symbol is unknown | |
263 | */ | |
264 | thread__find_addr_location(thread, self, m, MAP__FUNCTION, | |
265 | ip, &al, NULL); | |
266 | if (al.sym) | |
267 | goto found; | |
268 | } | |
269 | found: | |
270 | ams->addr = ip; | |
a68c2c58 | 271 | ams->al_addr = al.addr; |
b5387528 RAV |
272 | ams->sym = al.sym; |
273 | ams->map = al.map; | |
274 | } | |
275 | ||
276 | struct branch_info *machine__resolve_bstack(struct machine *self, | |
277 | struct thread *thr, | |
278 | struct branch_stack *bs) | |
279 | { | |
280 | struct branch_info *bi; | |
281 | unsigned int i; | |
282 | ||
283 | bi = calloc(bs->nr, sizeof(struct branch_info)); | |
284 | if (!bi) | |
285 | return NULL; | |
286 | ||
287 | for (i = 0; i < bs->nr; i++) { | |
288 | ip__resolve_ams(self, thr, &bi[i].to, bs->entries[i].to); | |
289 | ip__resolve_ams(self, thr, &bi[i].from, bs->entries[i].from); | |
290 | bi[i].flags = bs->entries[i].flags; | |
291 | } | |
292 | return bi; | |
293 | } | |
294 | ||
71ad0f5e JO |
295 | static int machine__resolve_callchain_sample(struct machine *machine, |
296 | struct thread *thread, | |
297 | struct ip_callchain *chain, | |
298 | struct symbol **parent) | |
299 | ||
a328626b ACM |
300 | { |
301 | u8 cpumode = PERF_RECORD_MISC_USER; | |
a328626b | 302 | unsigned int i; |
1b3a0e95 | 303 | int err; |
a328626b | 304 | |
47260645 | 305 | callchain_cursor_reset(&callchain_cursor); |
a328626b | 306 | |
114067b6 NK |
307 | if (chain->nr > PERF_MAX_STACK_DEPTH) { |
308 | pr_warning("corrupted callchain. skipping...\n"); | |
309 | return 0; | |
310 | } | |
311 | ||
a328626b | 312 | for (i = 0; i < chain->nr; i++) { |
d797fdc5 | 313 | u64 ip; |
a328626b ACM |
314 | struct addr_location al; |
315 | ||
d797fdc5 SL |
316 | if (callchain_param.order == ORDER_CALLEE) |
317 | ip = chain->ips[i]; | |
318 | else | |
319 | ip = chain->ips[chain->nr - i - 1]; | |
320 | ||
a328626b ACM |
321 | if (ip >= PERF_CONTEXT_MAX) { |
322 | switch (ip) { | |
323 | case PERF_CONTEXT_HV: | |
71ad0f5e JO |
324 | cpumode = PERF_RECORD_MISC_HYPERVISOR; |
325 | break; | |
a328626b | 326 | case PERF_CONTEXT_KERNEL: |
71ad0f5e JO |
327 | cpumode = PERF_RECORD_MISC_KERNEL; |
328 | break; | |
a328626b | 329 | case PERF_CONTEXT_USER: |
71ad0f5e JO |
330 | cpumode = PERF_RECORD_MISC_USER; |
331 | break; | |
a328626b | 332 | default: |
114067b6 NK |
333 | pr_debug("invalid callchain context: " |
334 | "%"PRId64"\n", (s64) ip); | |
335 | /* | |
336 | * It seems the callchain is corrupted. | |
337 | * Discard all. | |
338 | */ | |
339 | callchain_cursor_reset(&callchain_cursor); | |
340 | return 0; | |
a328626b ACM |
341 | } |
342 | continue; | |
343 | } | |
344 | ||
a1645ce1 | 345 | al.filtered = false; |
71ad0f5e | 346 | thread__find_addr_location(thread, machine, cpumode, |
743eb868 | 347 | MAP__FUNCTION, ip, &al, NULL); |
a328626b ACM |
348 | if (al.sym != NULL) { |
349 | if (sort__has_parent && !*parent && | |
350 | symbol__match_parent_regex(al.sym)) | |
351 | *parent = al.sym; | |
d599db3f | 352 | if (!symbol_conf.use_callchain) |
a328626b | 353 | break; |
a328626b | 354 | } |
1b3a0e95 | 355 | |
47260645 | 356 | err = callchain_cursor_append(&callchain_cursor, |
1b3a0e95 FW |
357 | ip, al.map, al.sym); |
358 | if (err) | |
359 | return err; | |
a328626b ACM |
360 | } |
361 | ||
1b3a0e95 | 362 | return 0; |
a328626b | 363 | } |
06aae590 | 364 | |
71ad0f5e JO |
365 | static int unwind_entry(struct unwind_entry *entry, void *arg) |
366 | { | |
367 | struct callchain_cursor *cursor = arg; | |
368 | return callchain_cursor_append(cursor, entry->ip, | |
369 | entry->map, entry->sym); | |
370 | } | |
371 | ||
372 | int machine__resolve_callchain(struct machine *machine, | |
373 | struct perf_evsel *evsel, | |
374 | struct thread *thread, | |
375 | struct perf_sample *sample, | |
376 | struct symbol **parent) | |
377 | ||
378 | { | |
379 | int ret; | |
380 | ||
381 | callchain_cursor_reset(&callchain_cursor); | |
382 | ||
383 | ret = machine__resolve_callchain_sample(machine, thread, | |
384 | sample->callchain, parent); | |
385 | if (ret) | |
386 | return ret; | |
387 | ||
388 | /* Can we do dwarf post unwind? */ | |
389 | if (!((evsel->attr.sample_type & PERF_SAMPLE_REGS_USER) && | |
390 | (evsel->attr.sample_type & PERF_SAMPLE_STACK_USER))) | |
391 | return 0; | |
392 | ||
bdde3716 JO |
393 | /* Bail out if nothing was captured. */ |
394 | if ((!sample->user_regs.regs) || | |
395 | (!sample->user_stack.size)) | |
396 | return 0; | |
397 | ||
71ad0f5e JO |
398 | return unwind__get_entries(unwind_entry, &callchain_cursor, machine, |
399 | thread, evsel->attr.sample_regs_user, | |
400 | sample); | |
401 | ||
402 | } | |
403 | ||
1d037ca1 IT |
404 | static int process_event_synth_tracing_data_stub(union perf_event *event |
405 | __maybe_unused, | |
406 | struct perf_session *session | |
407 | __maybe_unused) | |
d20deb64 ACM |
408 | { |
409 | dump_printf(": unhandled!\n"); | |
410 | return 0; | |
411 | } | |
412 | ||
1d037ca1 IT |
413 | static int process_event_synth_attr_stub(union perf_event *event __maybe_unused, |
414 | struct perf_evlist **pevlist | |
415 | __maybe_unused) | |
10d0f086 ACM |
416 | { |
417 | dump_printf(": unhandled!\n"); | |
418 | return 0; | |
419 | } | |
420 | ||
1d037ca1 IT |
421 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
422 | union perf_event *event __maybe_unused, | |
423 | struct perf_sample *sample __maybe_unused, | |
424 | struct perf_evsel *evsel __maybe_unused, | |
425 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
426 | { |
427 | dump_printf(": unhandled!\n"); | |
428 | return 0; | |
429 | } | |
430 | ||
1d037ca1 IT |
431 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
432 | union perf_event *event __maybe_unused, | |
433 | struct perf_sample *sample __maybe_unused, | |
434 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
435 | { |
436 | dump_printf(": unhandled!\n"); | |
437 | return 0; | |
438 | } | |
439 | ||
1d037ca1 IT |
440 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
441 | union perf_event *event __maybe_unused, | |
442 | struct perf_session *perf_session | |
443 | __maybe_unused) | |
743eb868 ACM |
444 | { |
445 | dump_printf(": unhandled!\n"); | |
446 | return 0; | |
447 | } | |
448 | ||
1d037ca1 IT |
449 | static int process_event_type_stub(struct perf_tool *tool __maybe_unused, |
450 | union perf_event *event __maybe_unused) | |
d6b17beb FW |
451 | { |
452 | dump_printf(": unhandled!\n"); | |
453 | return 0; | |
454 | } | |
455 | ||
45694aa7 | 456 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
457 | union perf_event *event, |
458 | struct perf_session *session); | |
d6b17beb | 459 | |
45694aa7 | 460 | static void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 461 | { |
45694aa7 ACM |
462 | if (tool->sample == NULL) |
463 | tool->sample = process_event_sample_stub; | |
464 | if (tool->mmap == NULL) | |
465 | tool->mmap = process_event_stub; | |
466 | if (tool->comm == NULL) | |
467 | tool->comm = process_event_stub; | |
468 | if (tool->fork == NULL) | |
469 | tool->fork = process_event_stub; | |
470 | if (tool->exit == NULL) | |
471 | tool->exit = process_event_stub; | |
472 | if (tool->lost == NULL) | |
473 | tool->lost = perf_event__process_lost; | |
474 | if (tool->read == NULL) | |
475 | tool->read = process_event_sample_stub; | |
476 | if (tool->throttle == NULL) | |
477 | tool->throttle = process_event_stub; | |
478 | if (tool->unthrottle == NULL) | |
479 | tool->unthrottle = process_event_stub; | |
480 | if (tool->attr == NULL) | |
481 | tool->attr = process_event_synth_attr_stub; | |
482 | if (tool->event_type == NULL) | |
483 | tool->event_type = process_event_type_stub; | |
484 | if (tool->tracing_data == NULL) | |
485 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
486 | if (tool->build_id == NULL) | |
487 | tool->build_id = process_finished_round_stub; | |
488 | if (tool->finished_round == NULL) { | |
489 | if (tool->ordered_samples) | |
490 | tool->finished_round = process_finished_round; | |
d6b17beb | 491 | else |
45694aa7 | 492 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 493 | } |
06aae590 | 494 | } |
80c0120a DA |
495 | |
496 | void mem_bswap_32(void *src, int byte_size) | |
497 | { | |
498 | u32 *m = src; | |
499 | while (byte_size > 0) { | |
500 | *m = bswap_32(*m); | |
501 | byte_size -= sizeof(u32); | |
502 | ++m; | |
503 | } | |
504 | } | |
06aae590 | 505 | |
ba21594c ACM |
506 | void mem_bswap_64(void *src, int byte_size) |
507 | { | |
508 | u64 *m = src; | |
509 | ||
510 | while (byte_size > 0) { | |
511 | *m = bswap_64(*m); | |
512 | byte_size -= sizeof(u64); | |
513 | ++m; | |
514 | } | |
515 | } | |
516 | ||
268fb20f JO |
517 | static void swap_sample_id_all(union perf_event *event, void *data) |
518 | { | |
519 | void *end = (void *) event + event->header.size; | |
520 | int size = end - data; | |
521 | ||
522 | BUG_ON(size % sizeof(u64)); | |
523 | mem_bswap_64(data, size); | |
524 | } | |
525 | ||
526 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 527 | bool sample_id_all __maybe_unused) |
ba21594c | 528 | { |
8115d60c ACM |
529 | struct perf_event_header *hdr = &event->header; |
530 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
531 | } |
532 | ||
268fb20f | 533 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 534 | { |
8115d60c ACM |
535 | event->comm.pid = bswap_32(event->comm.pid); |
536 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
537 | |
538 | if (sample_id_all) { | |
539 | void *data = &event->comm.comm; | |
540 | ||
9ac3e487 | 541 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
542 | swap_sample_id_all(event, data); |
543 | } | |
ba21594c ACM |
544 | } |
545 | ||
268fb20f JO |
546 | static void perf_event__mmap_swap(union perf_event *event, |
547 | bool sample_id_all) | |
ba21594c | 548 | { |
8115d60c ACM |
549 | event->mmap.pid = bswap_32(event->mmap.pid); |
550 | event->mmap.tid = bswap_32(event->mmap.tid); | |
551 | event->mmap.start = bswap_64(event->mmap.start); | |
552 | event->mmap.len = bswap_64(event->mmap.len); | |
553 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
554 | |
555 | if (sample_id_all) { | |
556 | void *data = &event->mmap.filename; | |
557 | ||
9ac3e487 | 558 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
559 | swap_sample_id_all(event, data); |
560 | } | |
ba21594c ACM |
561 | } |
562 | ||
268fb20f | 563 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 564 | { |
8115d60c ACM |
565 | event->fork.pid = bswap_32(event->fork.pid); |
566 | event->fork.tid = bswap_32(event->fork.tid); | |
567 | event->fork.ppid = bswap_32(event->fork.ppid); | |
568 | event->fork.ptid = bswap_32(event->fork.ptid); | |
569 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
570 | |
571 | if (sample_id_all) | |
572 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
573 | } |
574 | ||
268fb20f | 575 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 576 | { |
8115d60c ACM |
577 | event->read.pid = bswap_32(event->read.pid); |
578 | event->read.tid = bswap_32(event->read.tid); | |
579 | event->read.value = bswap_64(event->read.value); | |
580 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
581 | event->read.time_running = bswap_64(event->read.time_running); | |
582 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
583 | |
584 | if (sample_id_all) | |
585 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
586 | } |
587 | ||
e108c66e JO |
588 | static u8 revbyte(u8 b) |
589 | { | |
590 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
591 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
592 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
593 | return (u8) rev; | |
594 | } | |
595 | ||
596 | /* | |
597 | * XXX this is hack in attempt to carry flags bitfield | |
598 | * throught endian village. ABI says: | |
599 | * | |
600 | * Bit-fields are allocated from right to left (least to most significant) | |
601 | * on little-endian implementations and from left to right (most to least | |
602 | * significant) on big-endian implementations. | |
603 | * | |
604 | * The above seems to be byte specific, so we need to reverse each | |
605 | * byte of the bitfield. 'Internet' also says this might be implementation | |
606 | * specific and we probably need proper fix and carry perf_event_attr | |
607 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
608 | * to work for now. | |
609 | */ | |
610 | static void swap_bitfield(u8 *p, unsigned len) | |
611 | { | |
612 | unsigned i; | |
613 | ||
614 | for (i = 0; i < len; i++) { | |
615 | *p = revbyte(*p); | |
616 | p++; | |
617 | } | |
618 | } | |
619 | ||
eda3913b DA |
620 | /* exported for swapping attributes in file header */ |
621 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
622 | { | |
623 | attr->type = bswap_32(attr->type); | |
624 | attr->size = bswap_32(attr->size); | |
625 | attr->config = bswap_64(attr->config); | |
626 | attr->sample_period = bswap_64(attr->sample_period); | |
627 | attr->sample_type = bswap_64(attr->sample_type); | |
628 | attr->read_format = bswap_64(attr->read_format); | |
629 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
630 | attr->bp_type = bswap_32(attr->bp_type); | |
631 | attr->bp_addr = bswap_64(attr->bp_addr); | |
632 | attr->bp_len = bswap_64(attr->bp_len); | |
e108c66e JO |
633 | |
634 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
635 | } |
636 | ||
268fb20f | 637 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 638 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
639 | { |
640 | size_t size; | |
641 | ||
eda3913b | 642 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 643 | |
8115d60c ACM |
644 | size = event->header.size; |
645 | size -= (void *)&event->attr.id - (void *)event; | |
646 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
647 | } |
648 | ||
268fb20f | 649 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 650 | bool sample_id_all __maybe_unused) |
cd19a035 | 651 | { |
8115d60c ACM |
652 | event->event_type.event_type.event_id = |
653 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
654 | } |
655 | ||
268fb20f | 656 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 657 | bool sample_id_all __maybe_unused) |
9215545e | 658 | { |
8115d60c | 659 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
660 | } |
661 | ||
268fb20f JO |
662 | typedef void (*perf_event__swap_op)(union perf_event *event, |
663 | bool sample_id_all); | |
ba21594c | 664 | |
8115d60c ACM |
665 | static perf_event__swap_op perf_event__swap_ops[] = { |
666 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
667 | [PERF_RECORD_COMM] = perf_event__comm_swap, | |
668 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
669 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
670 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
671 | [PERF_RECORD_READ] = perf_event__read_swap, | |
672 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, | |
eda3913b | 673 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
674 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
675 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
676 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
677 | [PERF_RECORD_HEADER_MAX] = NULL, | |
ba21594c ACM |
678 | }; |
679 | ||
c61e52ee FW |
680 | struct sample_queue { |
681 | u64 timestamp; | |
e4c2df13 | 682 | u64 file_offset; |
8115d60c | 683 | union perf_event *event; |
c61e52ee FW |
684 | struct list_head list; |
685 | }; | |
686 | ||
020bb75a TG |
687 | static void perf_session_free_sample_buffers(struct perf_session *session) |
688 | { | |
689 | struct ordered_samples *os = &session->ordered_samples; | |
690 | ||
5c891f38 | 691 | while (!list_empty(&os->to_free)) { |
020bb75a TG |
692 | struct sample_queue *sq; |
693 | ||
5c891f38 | 694 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
020bb75a TG |
695 | list_del(&sq->list); |
696 | free(sq); | |
697 | } | |
698 | } | |
699 | ||
cbf41645 | 700 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 701 | union perf_event *event, |
8d50e5b4 | 702 | struct perf_sample *sample, |
45694aa7 | 703 | struct perf_tool *tool, |
f74725dc | 704 | u64 file_offset); |
cbf41645 | 705 | |
d25380cd | 706 | static int flush_sample_queue(struct perf_session *s, |
45694aa7 | 707 | struct perf_tool *tool) |
c61e52ee | 708 | { |
a1225dec TG |
709 | struct ordered_samples *os = &s->ordered_samples; |
710 | struct list_head *head = &os->samples; | |
c61e52ee | 711 | struct sample_queue *tmp, *iter; |
8d50e5b4 | 712 | struct perf_sample sample; |
a1225dec TG |
713 | u64 limit = os->next_flush; |
714 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; | |
88660563 | 715 | unsigned idx = 0, progress_next = os->nr_samples / 16; |
5538beca | 716 | int ret; |
c61e52ee | 717 | |
45694aa7 | 718 | if (!tool->ordered_samples || !limit) |
d25380cd | 719 | return 0; |
c61e52ee FW |
720 | |
721 | list_for_each_entry_safe(iter, tmp, head, list) { | |
722 | if (iter->timestamp > limit) | |
a1225dec | 723 | break; |
c61e52ee | 724 | |
0807d2d8 | 725 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); |
5538beca FW |
726 | if (ret) |
727 | pr_err("Can't parse sample, err = %d\n", ret); | |
d25380cd DA |
728 | else { |
729 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, | |
730 | iter->file_offset); | |
731 | if (ret) | |
732 | return ret; | |
733 | } | |
c61e52ee | 734 | |
a1225dec | 735 | os->last_flush = iter->timestamp; |
c61e52ee | 736 | list_del(&iter->list); |
020bb75a | 737 | list_add(&iter->list, &os->sample_cache); |
88660563 ACM |
738 | if (++idx >= progress_next) { |
739 | progress_next += os->nr_samples / 16; | |
740 | ui_progress__update(idx, os->nr_samples, | |
741 | "Processing time ordered events..."); | |
742 | } | |
c61e52ee | 743 | } |
a1225dec TG |
744 | |
745 | if (list_empty(head)) { | |
746 | os->last_sample = NULL; | |
747 | } else if (last_ts <= limit) { | |
748 | os->last_sample = | |
749 | list_entry(head->prev, struct sample_queue, list); | |
750 | } | |
88660563 ACM |
751 | |
752 | os->nr_samples = 0; | |
d25380cd DA |
753 | |
754 | return 0; | |
c61e52ee FW |
755 | } |
756 | ||
d6b17beb FW |
757 | /* |
758 | * When perf record finishes a pass on every buffers, it records this pseudo | |
759 | * event. | |
760 | * We record the max timestamp t found in the pass n. | |
761 | * Assuming these timestamps are monotonic across cpus, we know that if | |
762 | * a buffer still has events with timestamps below t, they will be all | |
763 | * available and then read in the pass n + 1. | |
764 | * Hence when we start to read the pass n + 2, we can safely flush every | |
765 | * events with timestamps below t. | |
766 | * | |
767 | * ============ PASS n ================= | |
768 | * CPU 0 | CPU 1 | |
769 | * | | |
770 | * cnt1 timestamps | cnt2 timestamps | |
771 | * 1 | 2 | |
772 | * 2 | 3 | |
773 | * - | 4 <--- max recorded | |
774 | * | |
775 | * ============ PASS n + 1 ============== | |
776 | * CPU 0 | CPU 1 | |
777 | * | | |
778 | * cnt1 timestamps | cnt2 timestamps | |
779 | * 3 | 5 | |
780 | * 4 | 6 | |
781 | * 5 | 7 <---- max recorded | |
782 | * | |
783 | * Flush every events below timestamp 4 | |
784 | * | |
785 | * ============ PASS n + 2 ============== | |
786 | * CPU 0 | CPU 1 | |
787 | * | | |
788 | * cnt1 timestamps | cnt2 timestamps | |
789 | * 6 | 8 | |
790 | * 7 | 9 | |
791 | * - | 10 | |
792 | * | |
793 | * Flush every events below timestamp 7 | |
794 | * etc... | |
795 | */ | |
45694aa7 | 796 | static int process_finished_round(struct perf_tool *tool, |
1d037ca1 | 797 | union perf_event *event __maybe_unused, |
d20deb64 | 798 | struct perf_session *session) |
d6b17beb | 799 | { |
d25380cd DA |
800 | int ret = flush_sample_queue(session, tool); |
801 | if (!ret) | |
802 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; | |
d6b17beb | 803 | |
d25380cd | 804 | return ret; |
d6b17beb FW |
805 | } |
806 | ||
c61e52ee | 807 | /* The queue is ordered by time */ |
cbf41645 | 808 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
c61e52ee | 809 | { |
a1225dec TG |
810 | struct ordered_samples *os = &s->ordered_samples; |
811 | struct sample_queue *sample = os->last_sample; | |
812 | u64 timestamp = new->timestamp; | |
813 | struct list_head *p; | |
c61e52ee | 814 | |
88660563 | 815 | ++os->nr_samples; |
a1225dec | 816 | os->last_sample = new; |
c61e52ee | 817 | |
a1225dec TG |
818 | if (!sample) { |
819 | list_add(&new->list, &os->samples); | |
820 | os->max_timestamp = timestamp; | |
c61e52ee FW |
821 | return; |
822 | } | |
823 | ||
824 | /* | |
a1225dec TG |
825 | * last_sample might point to some random place in the list as it's |
826 | * the last queued event. We expect that the new event is close to | |
827 | * this. | |
c61e52ee | 828 | */ |
a1225dec TG |
829 | if (sample->timestamp <= timestamp) { |
830 | while (sample->timestamp <= timestamp) { | |
831 | p = sample->list.next; | |
832 | if (p == &os->samples) { | |
833 | list_add_tail(&new->list, &os->samples); | |
834 | os->max_timestamp = timestamp; | |
835 | return; | |
836 | } | |
837 | sample = list_entry(p, struct sample_queue, list); | |
838 | } | |
839 | list_add_tail(&new->list, &sample->list); | |
840 | } else { | |
841 | while (sample->timestamp > timestamp) { | |
842 | p = sample->list.prev; | |
843 | if (p == &os->samples) { | |
844 | list_add(&new->list, &os->samples); | |
845 | return; | |
846 | } | |
847 | sample = list_entry(p, struct sample_queue, list); | |
848 | } | |
849 | list_add(&new->list, &sample->list); | |
850 | } | |
c61e52ee FW |
851 | } |
852 | ||
5c891f38 TG |
853 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
854 | ||
8115d60c | 855 | static int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
8d50e5b4 | 856 | struct perf_sample *sample, u64 file_offset) |
c61e52ee | 857 | { |
5c891f38 TG |
858 | struct ordered_samples *os = &s->ordered_samples; |
859 | struct list_head *sc = &os->sample_cache; | |
8d50e5b4 | 860 | u64 timestamp = sample->time; |
c61e52ee | 861 | struct sample_queue *new; |
c61e52ee | 862 | |
79a14c1f | 863 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
864 | return -ETIME; |
865 | ||
c61e52ee FW |
866 | if (timestamp < s->ordered_samples.last_flush) { |
867 | printf("Warning: Timestamp below last timeslice flush\n"); | |
868 | return -EINVAL; | |
869 | } | |
870 | ||
020bb75a TG |
871 | if (!list_empty(sc)) { |
872 | new = list_entry(sc->next, struct sample_queue, list); | |
873 | list_del(&new->list); | |
5c891f38 TG |
874 | } else if (os->sample_buffer) { |
875 | new = os->sample_buffer + os->sample_buffer_idx; | |
876 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) | |
877 | os->sample_buffer = NULL; | |
020bb75a | 878 | } else { |
5c891f38 TG |
879 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
880 | if (!os->sample_buffer) | |
020bb75a | 881 | return -ENOMEM; |
5c891f38 TG |
882 | list_add(&os->sample_buffer->list, &os->to_free); |
883 | os->sample_buffer_idx = 2; | |
884 | new = os->sample_buffer + 1; | |
020bb75a | 885 | } |
c61e52ee FW |
886 | |
887 | new->timestamp = timestamp; | |
e4c2df13 | 888 | new->file_offset = file_offset; |
fe174207 | 889 | new->event = event; |
c61e52ee | 890 | |
cbf41645 | 891 | __queue_event(new, s); |
640c03ce | 892 | |
640c03ce ACM |
893 | return 0; |
894 | } | |
c61e52ee | 895 | |
8d50e5b4 | 896 | static void callchain__printf(struct perf_sample *sample) |
640c03ce ACM |
897 | { |
898 | unsigned int i; | |
c61e52ee | 899 | |
9486aa38 | 900 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
640c03ce ACM |
901 | |
902 | for (i = 0; i < sample->callchain->nr; i++) | |
9486aa38 ACM |
903 | printf("..... %2d: %016" PRIx64 "\n", |
904 | i, sample->callchain->ips[i]); | |
c61e52ee FW |
905 | } |
906 | ||
b5387528 RAV |
907 | static void branch_stack__printf(struct perf_sample *sample) |
908 | { | |
909 | uint64_t i; | |
910 | ||
911 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
912 | ||
913 | for (i = 0; i < sample->branch_stack->nr; i++) | |
914 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
915 | i, sample->branch_stack->entries[i].from, | |
916 | sample->branch_stack->entries[i].to); | |
917 | } | |
918 | ||
0f6a3015 JO |
919 | static void regs_dump__printf(u64 mask, u64 *regs) |
920 | { | |
921 | unsigned rid, i = 0; | |
922 | ||
923 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
924 | u64 val = regs[i++]; | |
925 | ||
926 | printf(".... %-5s 0x%" PRIx64 "\n", | |
927 | perf_reg_name(rid), val); | |
928 | } | |
929 | } | |
930 | ||
931 | static void regs_user__printf(struct perf_sample *sample, u64 mask) | |
932 | { | |
933 | struct regs_dump *user_regs = &sample->user_regs; | |
934 | ||
935 | if (user_regs->regs) { | |
936 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); | |
937 | regs_dump__printf(mask, user_regs->regs); | |
938 | } | |
939 | } | |
940 | ||
941 | static void stack_user__printf(struct stack_dump *dump) | |
942 | { | |
943 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
944 | dump->size, dump->offset); | |
945 | } | |
946 | ||
9c90a61c | 947 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 948 | union perf_event *event, |
8d50e5b4 | 949 | struct perf_sample *sample) |
9c90a61c | 950 | { |
7f3be652 ACM |
951 | u64 sample_type = perf_evlist__sample_type(session->evlist); |
952 | ||
9c90a61c | 953 | if (event->header.type != PERF_RECORD_SAMPLE && |
5e562474 | 954 | !perf_evlist__sample_id_all(session->evlist)) { |
9c90a61c ACM |
955 | fputs("-1 -1 ", stdout); |
956 | return; | |
957 | } | |
958 | ||
7f3be652 | 959 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
960 | printf("%u ", sample->cpu); |
961 | ||
7f3be652 | 962 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 963 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
964 | } |
965 | ||
8115d60c | 966 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 967 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
968 | { |
969 | if (!dump_trace) | |
970 | return; | |
971 | ||
9486aa38 ACM |
972 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
973 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
974 | |
975 | trace_event(event); | |
976 | ||
977 | if (sample) | |
978 | perf_session__print_tstamp(session, event, sample); | |
979 | ||
9486aa38 | 980 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 981 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
982 | } |
983 | ||
0f6a3015 | 984 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 985 | struct perf_sample *sample) |
9aefcab0 | 986 | { |
7f3be652 ACM |
987 | u64 sample_type; |
988 | ||
ddbc24b7 ACM |
989 | if (!dump_trace) |
990 | return; | |
991 | ||
7cec0922 | 992 | printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 993 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 994 | sample->period, sample->addr); |
9aefcab0 | 995 | |
0f6a3015 | 996 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
997 | |
998 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
ddbc24b7 | 999 | callchain__printf(sample); |
b5387528 | 1000 | |
7f3be652 | 1001 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
b5387528 | 1002 | branch_stack__printf(sample); |
0f6a3015 JO |
1003 | |
1004 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
1005 | regs_user__printf(sample, evsel->attr.sample_regs_user); | |
1006 | ||
1007 | if (sample_type & PERF_SAMPLE_STACK_USER) | |
1008 | stack_user__printf(&sample->user_stack); | |
9aefcab0 TG |
1009 | } |
1010 | ||
743eb868 ACM |
1011 | static struct machine * |
1012 | perf_session__find_machine_for_cpumode(struct perf_session *session, | |
1013 | union perf_event *event) | |
1014 | { | |
1015 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
1016 | ||
7c0f4a41 DA |
1017 | if (perf_guest && |
1018 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
1019 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
1020 | u32 pid; |
1021 | ||
1022 | if (event->header.type == PERF_RECORD_MMAP) | |
1023 | pid = event->mmap.pid; | |
1024 | else | |
1025 | pid = event->ip.pid; | |
1026 | ||
207b5792 | 1027 | return perf_session__findnew_machine(session, pid); |
7fb0a5ee | 1028 | } |
743eb868 ACM |
1029 | |
1030 | return perf_session__find_host_machine(session); | |
1031 | } | |
1032 | ||
cbf41645 | 1033 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 1034 | union perf_event *event, |
8d50e5b4 | 1035 | struct perf_sample *sample, |
45694aa7 | 1036 | struct perf_tool *tool, |
532e7269 | 1037 | u64 file_offset) |
cbf41645 | 1038 | { |
9e69c210 | 1039 | struct perf_evsel *evsel; |
743eb868 | 1040 | struct machine *machine; |
9e69c210 | 1041 | |
532e7269 TG |
1042 | dump_event(session, event, file_offset, sample); |
1043 | ||
7b27509f ACM |
1044 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
1045 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { | |
1046 | /* | |
1047 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here | |
1048 | * because the tools right now may apply filters, discarding | |
1049 | * some of the samples. For consistency, in the future we | |
1050 | * should have something like nr_filtered_samples and remove | |
1051 | * the sample->period from total_sample_period, etc, KISS for | |
1052 | * now tho. | |
1053 | * | |
1054 | * Also testing against NULL allows us to handle files without | |
1055 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the | |
1056 | * future probably it'll be a good idea to restrict event | |
1057 | * processing via perf_session to files with both set. | |
1058 | */ | |
1059 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
1060 | } | |
1061 | ||
743eb868 ACM |
1062 | machine = perf_session__find_machine_for_cpumode(session, event); |
1063 | ||
cbf41645 TG |
1064 | switch (event->header.type) { |
1065 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 1066 | dump_sample(evsel, event, sample); |
9e69c210 ACM |
1067 | if (evsel == NULL) { |
1068 | ++session->hists.stats.nr_unknown_id; | |
6782206b | 1069 | return 0; |
9e69c210 | 1070 | } |
0c095715 JR |
1071 | if (machine == NULL) { |
1072 | ++session->hists.stats.nr_unprocessable_samples; | |
6782206b | 1073 | return 0; |
0c095715 | 1074 | } |
45694aa7 | 1075 | return tool->sample(tool, event, sample, evsel, machine); |
cbf41645 | 1076 | case PERF_RECORD_MMAP: |
45694aa7 | 1077 | return tool->mmap(tool, event, sample, machine); |
cbf41645 | 1078 | case PERF_RECORD_COMM: |
45694aa7 | 1079 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1080 | case PERF_RECORD_FORK: |
45694aa7 | 1081 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1082 | case PERF_RECORD_EXIT: |
45694aa7 | 1083 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1084 | case PERF_RECORD_LOST: |
45694aa7 | 1085 | if (tool->lost == perf_event__process_lost) |
743eb868 | 1086 | session->hists.stats.total_lost += event->lost.lost; |
45694aa7 | 1087 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1088 | case PERF_RECORD_READ: |
45694aa7 | 1089 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1090 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1091 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1092 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1093 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 TG |
1094 | default: |
1095 | ++session->hists.stats.nr_unknown_events; | |
1096 | return -1; | |
1097 | } | |
1098 | } | |
1099 | ||
3dfc2c0a | 1100 | static int perf_session__preprocess_sample(struct perf_session *session, |
8115d60c | 1101 | union perf_event *event, struct perf_sample *sample) |
3dfc2c0a TG |
1102 | { |
1103 | if (event->header.type != PERF_RECORD_SAMPLE || | |
7f3be652 | 1104 | !(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_CALLCHAIN)) |
3dfc2c0a TG |
1105 | return 0; |
1106 | ||
1107 | if (!ip_callchain__valid(sample->callchain, event)) { | |
1108 | pr_debug("call-chain problem with event, skipping it.\n"); | |
1109 | ++session->hists.stats.nr_invalid_chains; | |
1110 | session->hists.stats.total_invalid_chains += sample->period; | |
1111 | return -EINVAL; | |
1112 | } | |
1113 | return 0; | |
1114 | } | |
1115 | ||
8115d60c | 1116 | static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, |
45694aa7 | 1117 | struct perf_tool *tool, u64 file_offset) |
06aae590 | 1118 | { |
10d0f086 ACM |
1119 | int err; |
1120 | ||
ba74f064 | 1121 | dump_event(session, event, file_offset, NULL); |
06aae590 | 1122 | |
cbf41645 | 1123 | /* These events are processed right away */ |
06aae590 | 1124 | switch (event->header.type) { |
2c46dbb5 | 1125 | case PERF_RECORD_HEADER_ATTR: |
45694aa7 | 1126 | err = tool->attr(event, &session->evlist); |
10d0f086 | 1127 | if (err == 0) |
7b56cce2 | 1128 | perf_session__set_id_hdr_size(session); |
10d0f086 | 1129 | return err; |
cd19a035 | 1130 | case PERF_RECORD_HEADER_EVENT_TYPE: |
45694aa7 | 1131 | return tool->event_type(tool, event); |
9215545e TZ |
1132 | case PERF_RECORD_HEADER_TRACING_DATA: |
1133 | /* setup for reading amidst mmap */ | |
cbf41645 | 1134 | lseek(session->fd, file_offset, SEEK_SET); |
45694aa7 | 1135 | return tool->tracing_data(event, session); |
c7929e47 | 1136 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1137 | return tool->build_id(tool, event, session); |
d6b17beb | 1138 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 1139 | return tool->finished_round(tool, event, session); |
06aae590 | 1140 | default: |
ba74f064 | 1141 | return -EINVAL; |
06aae590 | 1142 | } |
ba74f064 TG |
1143 | } |
1144 | ||
268fb20f JO |
1145 | static void event_swap(union perf_event *event, bool sample_id_all) |
1146 | { | |
1147 | perf_event__swap_op swap; | |
1148 | ||
1149 | swap = perf_event__swap_ops[event->header.type]; | |
1150 | if (swap) | |
1151 | swap(event, sample_id_all); | |
1152 | } | |
1153 | ||
ba74f064 | 1154 | static int perf_session__process_event(struct perf_session *session, |
8115d60c | 1155 | union perf_event *event, |
45694aa7 | 1156 | struct perf_tool *tool, |
ba74f064 TG |
1157 | u64 file_offset) |
1158 | { | |
8d50e5b4 | 1159 | struct perf_sample sample; |
ba74f064 TG |
1160 | int ret; |
1161 | ||
268fb20f | 1162 | if (session->header.needs_swap) |
5e562474 | 1163 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
ba74f064 TG |
1164 | |
1165 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1166 | return -EINVAL; | |
1167 | ||
1168 | hists__inc_nr_events(&session->hists, event->header.type); | |
1169 | ||
1170 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1171 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1172 | |
3dfc2c0a TG |
1173 | /* |
1174 | * For all kernel events we get the sample data | |
1175 | */ | |
0807d2d8 | 1176 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
5538beca FW |
1177 | if (ret) |
1178 | return ret; | |
3dfc2c0a TG |
1179 | |
1180 | /* Preprocess sample records - precheck callchains */ | |
1181 | if (perf_session__preprocess_sample(session, event, &sample)) | |
1182 | return 0; | |
1183 | ||
45694aa7 | 1184 | if (tool->ordered_samples) { |
e4c2df13 TG |
1185 | ret = perf_session_queue_event(session, event, &sample, |
1186 | file_offset); | |
cbf41645 TG |
1187 | if (ret != -ETIME) |
1188 | return ret; | |
1189 | } | |
1190 | ||
45694aa7 | 1191 | return perf_session_deliver_event(session, event, &sample, tool, |
f74725dc | 1192 | file_offset); |
06aae590 ACM |
1193 | } |
1194 | ||
ba21594c ACM |
1195 | void perf_event_header__bswap(struct perf_event_header *self) |
1196 | { | |
1197 | self->type = bswap_32(self->type); | |
1198 | self->misc = bswap_16(self->misc); | |
1199 | self->size = bswap_16(self->size); | |
1200 | } | |
1201 | ||
b424eba2 ACM |
1202 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1203 | { | |
1204 | return machine__findnew_thread(&session->host_machine, pid); | |
1205 | } | |
1206 | ||
06aae590 ACM |
1207 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
1208 | { | |
1209 | struct thread *thread = perf_session__findnew(self, 0); | |
1210 | ||
1211 | if (thread == NULL || thread__set_comm(thread, "swapper")) { | |
1212 | pr_err("problem inserting idle task.\n"); | |
1213 | thread = NULL; | |
1214 | } | |
1215 | ||
1216 | return thread; | |
1217 | } | |
1218 | ||
11095994 | 1219 | static void perf_session__warn_about_errors(const struct perf_session *session, |
45694aa7 | 1220 | const struct perf_tool *tool) |
11095994 | 1221 | { |
45694aa7 | 1222 | if (tool->lost == perf_event__process_lost && |
7b27509f ACM |
1223 | session->hists.stats.nr_events[PERF_RECORD_LOST] != 0) { |
1224 | ui__warning("Processed %d events and lost %d chunks!\n\n" | |
1225 | "Check IO/CPU overload!\n\n", | |
1226 | session->hists.stats.nr_events[0], | |
1227 | session->hists.stats.nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1228 | } |
1229 | ||
1230 | if (session->hists.stats.nr_unknown_events != 0) { | |
1231 | ui__warning("Found %u unknown events!\n\n" | |
1232 | "Is this an older tool processing a perf.data " | |
1233 | "file generated by a more recent tool?\n\n" | |
1234 | "If that is not the case, consider " | |
1235 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
1236 | session->hists.stats.nr_unknown_events); | |
1237 | } | |
1238 | ||
9e69c210 ACM |
1239 | if (session->hists.stats.nr_unknown_id != 0) { |
1240 | ui__warning("%u samples with id not present in the header\n", | |
1241 | session->hists.stats.nr_unknown_id); | |
1242 | } | |
1243 | ||
11095994 ACM |
1244 | if (session->hists.stats.nr_invalid_chains != 0) { |
1245 | ui__warning("Found invalid callchains!\n\n" | |
1246 | "%u out of %u events were discarded for this reason.\n\n" | |
1247 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
1248 | session->hists.stats.nr_invalid_chains, | |
1249 | session->hists.stats.nr_events[PERF_RECORD_SAMPLE]); | |
1250 | } | |
0c095715 JR |
1251 | |
1252 | if (session->hists.stats.nr_unprocessable_samples != 0) { | |
1253 | ui__warning("%u unprocessable samples recorded.\n" | |
1254 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
1255 | session->hists.stats.nr_unprocessable_samples); | |
1256 | } | |
11095994 ACM |
1257 | } |
1258 | ||
8dc58101 TZ |
1259 | #define session_done() (*(volatile int *)(&session_done)) |
1260 | volatile int session_done; | |
1261 | ||
1262 | static int __perf_session__process_pipe_events(struct perf_session *self, | |
45694aa7 | 1263 | struct perf_tool *tool) |
8dc58101 | 1264 | { |
444d2866 SE |
1265 | union perf_event *event; |
1266 | uint32_t size, cur_size = 0; | |
1267 | void *buf = NULL; | |
8dc58101 TZ |
1268 | int skip = 0; |
1269 | u64 head; | |
1270 | int err; | |
1271 | void *p; | |
1272 | ||
45694aa7 | 1273 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1274 | |
1275 | head = 0; | |
444d2866 SE |
1276 | cur_size = sizeof(union perf_event); |
1277 | ||
1278 | buf = malloc(cur_size); | |
1279 | if (!buf) | |
1280 | return -errno; | |
8dc58101 | 1281 | more: |
444d2866 SE |
1282 | event = buf; |
1283 | err = readn(self->fd, event, sizeof(struct perf_event_header)); | |
8dc58101 TZ |
1284 | if (err <= 0) { |
1285 | if (err == 0) | |
1286 | goto done; | |
1287 | ||
1288 | pr_err("failed to read event header\n"); | |
1289 | goto out_err; | |
1290 | } | |
1291 | ||
1292 | if (self->header.needs_swap) | |
444d2866 | 1293 | perf_event_header__bswap(&event->header); |
8dc58101 | 1294 | |
444d2866 | 1295 | size = event->header.size; |
8dc58101 TZ |
1296 | if (size == 0) |
1297 | size = 8; | |
1298 | ||
444d2866 SE |
1299 | if (size > cur_size) { |
1300 | void *new = realloc(buf, size); | |
1301 | if (!new) { | |
1302 | pr_err("failed to allocate memory to read event\n"); | |
1303 | goto out_err; | |
1304 | } | |
1305 | buf = new; | |
1306 | cur_size = size; | |
1307 | event = buf; | |
1308 | } | |
1309 | p = event; | |
8dc58101 TZ |
1310 | p += sizeof(struct perf_event_header); |
1311 | ||
794e43b5 | 1312 | if (size - sizeof(struct perf_event_header)) { |
1e7972cc | 1313 | err = readn(self->fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1314 | if (err <= 0) { |
1315 | if (err == 0) { | |
1316 | pr_err("unexpected end of event stream\n"); | |
1317 | goto done; | |
1318 | } | |
8dc58101 | 1319 | |
794e43b5 TZ |
1320 | pr_err("failed to read event data\n"); |
1321 | goto out_err; | |
1322 | } | |
8dc58101 TZ |
1323 | } |
1324 | ||
444d2866 | 1325 | if ((skip = perf_session__process_event(self, event, tool, head)) < 0) { |
9389a460 | 1326 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1327 | head, event->header.size, event->header.type); |
9389a460 JO |
1328 | err = -EINVAL; |
1329 | goto out_err; | |
8dc58101 TZ |
1330 | } |
1331 | ||
1332 | head += size; | |
1333 | ||
8dc58101 TZ |
1334 | if (skip > 0) |
1335 | head += skip; | |
1336 | ||
1337 | if (!session_done()) | |
1338 | goto more; | |
1339 | done: | |
1340 | err = 0; | |
1341 | out_err: | |
444d2866 | 1342 | free(buf); |
45694aa7 | 1343 | perf_session__warn_about_errors(self, tool); |
020bb75a | 1344 | perf_session_free_sample_buffers(self); |
8dc58101 TZ |
1345 | return err; |
1346 | } | |
1347 | ||
998bedc8 FW |
1348 | static union perf_event * |
1349 | fetch_mmaped_event(struct perf_session *session, | |
1350 | u64 head, size_t mmap_size, char *buf) | |
1351 | { | |
1352 | union perf_event *event; | |
1353 | ||
1354 | /* | |
1355 | * Ensure we have enough space remaining to read | |
1356 | * the size of the event in the headers. | |
1357 | */ | |
1358 | if (head + sizeof(event->header) > mmap_size) | |
1359 | return NULL; | |
1360 | ||
1361 | event = (union perf_event *)(buf + head); | |
1362 | ||
1363 | if (session->header.needs_swap) | |
1364 | perf_event_header__bswap(&event->header); | |
1365 | ||
1366 | if (head + event->header.size > mmap_size) | |
1367 | return NULL; | |
1368 | ||
1369 | return event; | |
1370 | } | |
1371 | ||
0331ee0c | 1372 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 | 1373 | u64 data_offset, u64 data_size, |
45694aa7 | 1374 | u64 file_size, struct perf_tool *tool) |
06aae590 | 1375 | { |
55b44629 | 1376 | u64 head, page_offset, file_offset, file_pos, progress_next; |
fe174207 | 1377 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1378 | size_t mmap_size; |
fe174207 | 1379 | char *buf, *mmaps[8]; |
8115d60c | 1380 | union perf_event *event; |
06aae590 | 1381 | uint32_t size; |
0331ee0c | 1382 | |
45694aa7 | 1383 | perf_tool__fill_defaults(tool); |
06aae590 | 1384 | |
0331ee0c TG |
1385 | page_offset = page_size * (data_offset / page_size); |
1386 | file_offset = page_offset; | |
1387 | head = data_offset - page_offset; | |
06aae590 | 1388 | |
d6513281 TG |
1389 | if (data_offset + data_size < file_size) |
1390 | file_size = data_offset + data_size; | |
1391 | ||
55b44629 | 1392 | progress_next = file_size / 16; |
55b44629 TG |
1393 | |
1394 | mmap_size = session->mmap_window; | |
1395 | if (mmap_size > file_size) | |
1396 | mmap_size = file_size; | |
1397 | ||
fe174207 TG |
1398 | memset(mmaps, 0, sizeof(mmaps)); |
1399 | ||
ba21594c ACM |
1400 | mmap_prot = PROT_READ; |
1401 | mmap_flags = MAP_SHARED; | |
1402 | ||
0331ee0c | 1403 | if (session->header.needs_swap) { |
ba21594c ACM |
1404 | mmap_prot |= PROT_WRITE; |
1405 | mmap_flags = MAP_PRIVATE; | |
1406 | } | |
06aae590 | 1407 | remap: |
55b44629 TG |
1408 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd, |
1409 | file_offset); | |
06aae590 ACM |
1410 | if (buf == MAP_FAILED) { |
1411 | pr_err("failed to mmap file\n"); | |
1412 | err = -errno; | |
1413 | goto out_err; | |
1414 | } | |
fe174207 TG |
1415 | mmaps[map_idx] = buf; |
1416 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1417 | file_pos = file_offset + head; |
06aae590 ACM |
1418 | |
1419 | more: | |
998bedc8 FW |
1420 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1421 | if (!event) { | |
fe174207 TG |
1422 | if (mmaps[map_idx]) { |
1423 | munmap(mmaps[map_idx], mmap_size); | |
1424 | mmaps[map_idx] = NULL; | |
1425 | } | |
06aae590 | 1426 | |
0331ee0c TG |
1427 | page_offset = page_size * (head / page_size); |
1428 | file_offset += page_offset; | |
1429 | head -= page_offset; | |
06aae590 ACM |
1430 | goto remap; |
1431 | } | |
1432 | ||
1433 | size = event->header.size; | |
1434 | ||
d6513281 | 1435 | if (size == 0 || |
45694aa7 | 1436 | perf_session__process_event(session, event, tool, file_pos) < 0) { |
9389a460 JO |
1437 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1438 | file_offset + head, event->header.size, | |
1439 | event->header.type); | |
1440 | err = -EINVAL; | |
1441 | goto out_err; | |
06aae590 ACM |
1442 | } |
1443 | ||
1444 | head += size; | |
d6513281 | 1445 | file_pos += size; |
06aae590 | 1446 | |
55b44629 TG |
1447 | if (file_pos >= progress_next) { |
1448 | progress_next += file_size / 16; | |
ca59bcbc ACM |
1449 | ui_progress__update(file_pos, file_size, |
1450 | "Processing events..."); | |
55b44629 TG |
1451 | } |
1452 | ||
d6513281 | 1453 | if (file_pos < file_size) |
06aae590 | 1454 | goto more; |
d6513281 | 1455 | |
06aae590 | 1456 | err = 0; |
c61e52ee | 1457 | /* do the final flush for ordered samples */ |
0331ee0c | 1458 | session->ordered_samples.next_flush = ULLONG_MAX; |
d25380cd | 1459 | err = flush_sample_queue(session, tool); |
06aae590 | 1460 | out_err: |
45694aa7 | 1461 | perf_session__warn_about_errors(session, tool); |
020bb75a | 1462 | perf_session_free_sample_buffers(session); |
06aae590 ACM |
1463 | return err; |
1464 | } | |
27295592 | 1465 | |
6122e4e4 | 1466 | int perf_session__process_events(struct perf_session *self, |
45694aa7 | 1467 | struct perf_tool *tool) |
6122e4e4 ACM |
1468 | { |
1469 | int err; | |
1470 | ||
1471 | if (perf_session__register_idle_thread(self) == NULL) | |
1472 | return -ENOMEM; | |
1473 | ||
8dc58101 TZ |
1474 | if (!self->fd_pipe) |
1475 | err = __perf_session__process_events(self, | |
1476 | self->header.data_offset, | |
1477 | self->header.data_size, | |
45694aa7 | 1478 | self->size, tool); |
8dc58101 | 1479 | else |
45694aa7 | 1480 | err = __perf_session__process_pipe_events(self, tool); |
88ca895d | 1481 | |
6122e4e4 ACM |
1482 | return err; |
1483 | } | |
1484 | ||
7f3be652 | 1485 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1486 | { |
7f3be652 | 1487 | if (!(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_RAW)) { |
d549c769 ACM |
1488 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1489 | return false; | |
27295592 ACM |
1490 | } |
1491 | ||
d549c769 | 1492 | return true; |
27295592 | 1493 | } |
56b03f3c | 1494 | |
743eb868 ACM |
1495 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1496 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1497 | { |
1498 | char *bracket; | |
9de89fe7 | 1499 | enum map_type i; |
a1645ce1 ZY |
1500 | struct ref_reloc_sym *ref; |
1501 | ||
1502 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1503 | if (ref == NULL) | |
1504 | return -ENOMEM; | |
56b03f3c | 1505 | |
a1645ce1 ZY |
1506 | ref->name = strdup(symbol_name); |
1507 | if (ref->name == NULL) { | |
1508 | free(ref); | |
56b03f3c | 1509 | return -ENOMEM; |
a1645ce1 | 1510 | } |
56b03f3c | 1511 | |
a1645ce1 | 1512 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1513 | if (bracket) |
1514 | *bracket = '\0'; | |
1515 | ||
a1645ce1 | 1516 | ref->addr = addr; |
9de89fe7 ACM |
1517 | |
1518 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1519 | struct kmap *kmap = map__kmap(maps[i]); |
1520 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1521 | } |
1522 | ||
56b03f3c ACM |
1523 | return 0; |
1524 | } | |
1f626bc3 ACM |
1525 | |
1526 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) | |
1527 | { | |
1528 | return __dsos__fprintf(&self->host_machine.kernel_dsos, fp) + | |
1529 | __dsos__fprintf(&self->host_machine.user_dsos, fp) + | |
1530 | machines__fprintf_dsos(&self->machines, fp); | |
1531 | } | |
f869097e ACM |
1532 | |
1533 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, | |
1534 | bool with_hits) | |
1535 | { | |
1536 | size_t ret = machine__fprintf_dsos_buildid(&self->host_machine, fp, with_hits); | |
1537 | return ret + machines__fprintf_dsos_buildid(&self->machines, fp, with_hits); | |
1538 | } | |
e248de33 ACM |
1539 | |
1540 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1541 | { | |
1542 | struct perf_evsel *pos; | |
1543 | size_t ret = fprintf(fp, "Aggregated stats:\n"); | |
1544 | ||
1545 | ret += hists__fprintf_nr_events(&session->hists, fp); | |
1546 | ||
1547 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
7289f83c | 1548 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
e248de33 ACM |
1549 | ret += hists__fprintf_nr_events(&pos->hists, fp); |
1550 | } | |
1551 | ||
1552 | return ret; | |
1553 | } | |
c0230b2b | 1554 | |
b424eba2 ACM |
1555 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1556 | { | |
1557 | /* | |
1558 | * FIXME: Here we have to actually print all the machines in this | |
1559 | * session, not just the host... | |
1560 | */ | |
1561 | return machine__fprintf(&session->host_machine, fp); | |
1562 | } | |
1563 | ||
1564 | void perf_session__remove_thread(struct perf_session *session, | |
1565 | struct thread *th) | |
1566 | { | |
1567 | /* | |
1568 | * FIXME: This one makes no sense, we need to remove the thread from | |
1569 | * the machine it belongs to, perf_session can have many machines, so | |
1570 | * doing it always on ->host_machine is wrong. Fix when auditing all | |
1571 | * the 'perf kvm' code. | |
1572 | */ | |
1573 | machine__remove_thread(&session->host_machine, th); | |
1574 | } | |
1575 | ||
9cbdb702 DA |
1576 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1577 | unsigned int type) | |
1578 | { | |
1579 | struct perf_evsel *pos; | |
1580 | ||
1581 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
1582 | if (pos->attr.type == type) | |
1583 | return pos; | |
1584 | } | |
1585 | return NULL; | |
1586 | } | |
1587 | ||
71ad0f5e JO |
1588 | void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event, |
1589 | struct perf_sample *sample, struct machine *machine, | |
1590 | int print_sym, int print_dso, int print_symoffset) | |
c0230b2b DA |
1591 | { |
1592 | struct addr_location al; | |
c0230b2b DA |
1593 | struct callchain_cursor_node *node; |
1594 | ||
743eb868 | 1595 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
c0230b2b DA |
1596 | NULL) < 0) { |
1597 | error("problem processing %d event, skipping it.\n", | |
1598 | event->header.type); | |
1599 | return; | |
1600 | } | |
1601 | ||
1602 | if (symbol_conf.use_callchain && sample->callchain) { | |
1603 | ||
71ad0f5e JO |
1604 | |
1605 | if (machine__resolve_callchain(machine, evsel, al.thread, | |
1606 | sample, NULL) != 0) { | |
c0230b2b DA |
1607 | if (verbose) |
1608 | error("Failed to resolve callchain. Skipping\n"); | |
1609 | return; | |
1610 | } | |
47260645 | 1611 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b DA |
1612 | |
1613 | while (1) { | |
47260645 | 1614 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1615 | if (!node) |
1616 | break; | |
1617 | ||
787bef17 DA |
1618 | printf("\t%16" PRIx64, node->ip); |
1619 | if (print_sym) { | |
547a92e0 AN |
1620 | printf(" "); |
1621 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 DA |
1622 | } |
1623 | if (print_dso) { | |
547a92e0 | 1624 | printf(" ("); |
52deff71 | 1625 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1626 | printf(")"); |
787bef17 DA |
1627 | } |
1628 | printf("\n"); | |
c0230b2b | 1629 | |
47260645 | 1630 | callchain_cursor_advance(&callchain_cursor); |
c0230b2b DA |
1631 | } |
1632 | ||
1633 | } else { | |
adc4bf99 | 1634 | printf("%16" PRIx64, sample->ip); |
787bef17 | 1635 | if (print_sym) { |
547a92e0 | 1636 | printf(" "); |
a978f2ab AN |
1637 | if (print_symoffset) |
1638 | symbol__fprintf_symname_offs(al.sym, &al, | |
1639 | stdout); | |
1640 | else | |
1641 | symbol__fprintf_symname(al.sym, stdout); | |
610723f2 DA |
1642 | } |
1643 | ||
1644 | if (print_dso) { | |
547a92e0 AN |
1645 | printf(" ("); |
1646 | map__fprintf_dsoname(al.map, stdout); | |
1647 | printf(")"); | |
787bef17 | 1648 | } |
c0230b2b DA |
1649 | } |
1650 | } | |
5d67be97 AB |
1651 | |
1652 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1653 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1654 | { | |
1655 | int i; | |
1656 | struct cpu_map *map; | |
1657 | ||
1658 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1659 | struct perf_evsel *evsel; | |
1660 | ||
1661 | evsel = perf_session__find_first_evtype(session, i); | |
1662 | if (!evsel) | |
1663 | continue; | |
1664 | ||
1665 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1666 | pr_err("File does not contain CPU events. " | |
1667 | "Remove -c option to proceed.\n"); | |
1668 | return -1; | |
1669 | } | |
1670 | } | |
1671 | ||
1672 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1673 | if (map == NULL) { |
1674 | pr_err("Invalid cpu_list\n"); | |
1675 | return -1; | |
1676 | } | |
5d67be97 AB |
1677 | |
1678 | for (i = 0; i < map->nr; i++) { | |
1679 | int cpu = map->map[i]; | |
1680 | ||
1681 | if (cpu >= MAX_NR_CPUS) { | |
1682 | pr_err("Requested CPU %d too large. " | |
1683 | "Consider raising MAX_NR_CPUS\n", cpu); | |
1684 | return -1; | |
1685 | } | |
1686 | ||
1687 | set_bit(cpu, cpu_bitmap); | |
1688 | } | |
1689 | ||
1690 | return 0; | |
1691 | } | |
fbe96f29 SE |
1692 | |
1693 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1694 | bool full) | |
1695 | { | |
1696 | struct stat st; | |
1697 | int ret; | |
1698 | ||
1699 | if (session == NULL || fp == NULL) | |
1700 | return; | |
1701 | ||
1702 | ret = fstat(session->fd, &st); | |
1703 | if (ret == -1) | |
1704 | return; | |
1705 | ||
1706 | fprintf(fp, "# ========\n"); | |
1707 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1708 | perf_header__fprintf_info(session, fp, full); | |
1709 | fprintf(fp, "# ========\n#\n"); | |
1710 | } | |
da378962 ACM |
1711 | |
1712 | ||
1713 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1714 | const struct perf_evsel_str_handler *assocs, | |
1715 | size_t nr_assocs) | |
1716 | { | |
1717 | struct perf_evlist *evlist = session->evlist; | |
1718 | struct event_format *format; | |
1719 | struct perf_evsel *evsel; | |
1720 | char *tracepoint, *name; | |
1721 | size_t i; | |
1722 | int err; | |
1723 | ||
1724 | for (i = 0; i < nr_assocs; i++) { | |
1725 | err = -ENOMEM; | |
1726 | tracepoint = strdup(assocs[i].name); | |
1727 | if (tracepoint == NULL) | |
1728 | goto out; | |
1729 | ||
1730 | err = -ENOENT; | |
1731 | name = strchr(tracepoint, ':'); | |
1732 | if (name == NULL) | |
1733 | goto out_free; | |
1734 | ||
1735 | *name++ = '\0'; | |
1736 | format = pevent_find_event_by_name(session->pevent, | |
1737 | tracepoint, name); | |
1738 | if (format == NULL) { | |
1739 | /* | |
1740 | * Adding a handler for an event not in the session, | |
1741 | * just ignore it. | |
1742 | */ | |
1743 | goto next; | |
1744 | } | |
1745 | ||
1746 | evsel = perf_evlist__find_tracepoint_by_id(evlist, format->id); | |
1747 | if (evsel == NULL) | |
1748 | goto next; | |
1749 | ||
1750 | err = -EEXIST; | |
1751 | if (evsel->handler.func != NULL) | |
1752 | goto out_free; | |
1753 | evsel->handler.func = assocs[i].handler; | |
1754 | next: | |
1755 | free(tracepoint); | |
1756 | } | |
1757 | ||
1758 | err = 0; | |
1759 | out: | |
1760 | return err; | |
1761 | ||
1762 | out_free: | |
1763 | free(tracepoint); | |
1764 | goto out; | |
1765 | } |