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 ACM |
9 | |
10 | #include "session.h" | |
a328626b | 11 | #include "sort.h" |
94c744b6 ACM |
12 | #include "util.h" |
13 | ||
14 | static int perf_session__open(struct perf_session *self, bool force) | |
15 | { | |
16 | struct stat input_stat; | |
17 | ||
8dc58101 TZ |
18 | if (!strcmp(self->filename, "-")) { |
19 | self->fd_pipe = true; | |
20 | self->fd = STDIN_FILENO; | |
21 | ||
22 | if (perf_header__read(self, self->fd) < 0) | |
23 | pr_err("incompatible file format"); | |
24 | ||
25 | return 0; | |
26 | } | |
27 | ||
f887f301 | 28 | self->fd = open(self->filename, O_RDONLY); |
94c744b6 | 29 | if (self->fd < 0) { |
0f2c3de2 AI |
30 | int err = errno; |
31 | ||
32 | pr_err("failed to open %s: %s", self->filename, strerror(err)); | |
33 | if (err == ENOENT && !strcmp(self->filename, "perf.data")) | |
94c744b6 ACM |
34 | pr_err(" (try 'perf record' first)"); |
35 | pr_err("\n"); | |
36 | return -errno; | |
37 | } | |
38 | ||
39 | if (fstat(self->fd, &input_stat) < 0) | |
40 | goto out_close; | |
41 | ||
42 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { | |
43 | pr_err("file %s not owned by current user or root\n", | |
44 | self->filename); | |
45 | goto out_close; | |
46 | } | |
47 | ||
48 | if (!input_stat.st_size) { | |
49 | pr_info("zero-sized file (%s), nothing to do!\n", | |
50 | self->filename); | |
51 | goto out_close; | |
52 | } | |
53 | ||
8dc58101 | 54 | if (perf_header__read(self, self->fd) < 0) { |
94c744b6 ACM |
55 | pr_err("incompatible file format"); |
56 | goto out_close; | |
57 | } | |
58 | ||
59 | self->size = input_stat.st_size; | |
60 | return 0; | |
61 | ||
62 | out_close: | |
63 | close(self->fd); | |
64 | self->fd = -1; | |
65 | return -1; | |
66 | } | |
67 | ||
9c90a61c | 68 | static void perf_session__id_header_size(struct perf_session *session) |
8dc58101 | 69 | { |
9c90a61c ACM |
70 | struct sample_data *data; |
71 | u64 sample_type = session->sample_type; | |
72 | u16 size = 0; | |
73 | ||
74 | if (!session->sample_id_all) | |
75 | goto out; | |
76 | ||
77 | if (sample_type & PERF_SAMPLE_TID) | |
78 | size += sizeof(data->tid) * 2; | |
79 | ||
80 | if (sample_type & PERF_SAMPLE_TIME) | |
81 | size += sizeof(data->time); | |
82 | ||
83 | if (sample_type & PERF_SAMPLE_ID) | |
84 | size += sizeof(data->id); | |
85 | ||
86 | if (sample_type & PERF_SAMPLE_STREAM_ID) | |
87 | size += sizeof(data->stream_id); | |
88 | ||
89 | if (sample_type & PERF_SAMPLE_CPU) | |
90 | size += sizeof(data->cpu) * 2; | |
91 | out: | |
92 | session->id_hdr_size = size; | |
93 | } | |
94 | ||
95 | void perf_session__set_sample_id_all(struct perf_session *session, bool value) | |
96 | { | |
97 | session->sample_id_all = value; | |
98 | perf_session__id_header_size(session); | |
8dc58101 TZ |
99 | } |
100 | ||
640c03ce ACM |
101 | void perf_session__set_sample_type(struct perf_session *session, u64 type) |
102 | { | |
103 | session->sample_type = type; | |
104 | } | |
105 | ||
9c90a61c ACM |
106 | void perf_session__update_sample_type(struct perf_session *self) |
107 | { | |
108 | self->sample_type = perf_header__sample_type(&self->header); | |
109 | self->sample_id_all = perf_header__sample_id_all(&self->header); | |
110 | perf_session__id_header_size(self); | |
111 | } | |
112 | ||
a1645ce1 ZY |
113 | int perf_session__create_kernel_maps(struct perf_session *self) |
114 | { | |
d118f8ba | 115 | int ret = machine__create_kernel_maps(&self->host_machine); |
a1645ce1 | 116 | |
a1645ce1 | 117 | if (ret >= 0) |
d118f8ba | 118 | ret = machines__create_guest_kernel_maps(&self->machines); |
a1645ce1 ZY |
119 | return ret; |
120 | } | |
121 | ||
076c6e45 ACM |
122 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
123 | { | |
124 | machine__destroy_kernel_maps(&self->host_machine); | |
125 | machines__destroy_guest_kernel_maps(&self->machines); | |
126 | } | |
127 | ||
454c407e | 128 | struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe) |
94c744b6 | 129 | { |
b3165f41 | 130 | size_t len = filename ? strlen(filename) + 1 : 0; |
94c744b6 ACM |
131 | struct perf_session *self = zalloc(sizeof(*self) + len); |
132 | ||
133 | if (self == NULL) | |
134 | goto out; | |
135 | ||
136 | if (perf_header__init(&self->header) < 0) | |
4aa65636 | 137 | goto out_free; |
94c744b6 ACM |
138 | |
139 | memcpy(self->filename, filename, len); | |
b3165f41 | 140 | self->threads = RB_ROOT; |
720a3aeb | 141 | INIT_LIST_HEAD(&self->dead_threads); |
1c02c4d2 | 142 | self->hists_tree = RB_ROOT; |
b3165f41 | 143 | self->last_match = NULL; |
55b44629 TG |
144 | /* |
145 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
146 | * slices. On 32bit we use 32MB. | |
147 | */ | |
148 | #if BITS_PER_LONG == 64 | |
149 | self->mmap_window = ULLONG_MAX; | |
150 | #else | |
151 | self->mmap_window = 32 * 1024 * 1024ULL; | |
152 | #endif | |
23346f21 | 153 | self->machines = RB_ROOT; |
454c407e | 154 | self->repipe = repipe; |
a1225dec | 155 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
020bb75a | 156 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
5c891f38 | 157 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
1f626bc3 | 158 | machine__init(&self->host_machine, "", HOST_KERNEL_ID); |
94c744b6 | 159 | |
64abebf7 ACM |
160 | if (mode == O_RDONLY) { |
161 | if (perf_session__open(self, force) < 0) | |
162 | goto out_delete; | |
163 | } else if (mode == O_WRONLY) { | |
164 | /* | |
165 | * In O_RDONLY mode this will be performed when reading the | |
166 | * kernel MMAP event, in event__process_mmap(). | |
167 | */ | |
168 | if (perf_session__create_kernel_maps(self) < 0) | |
169 | goto out_delete; | |
170 | } | |
d549c769 | 171 | |
8dc58101 | 172 | perf_session__update_sample_type(self); |
94c744b6 ACM |
173 | out: |
174 | return self; | |
4aa65636 | 175 | out_free: |
94c744b6 ACM |
176 | free(self); |
177 | return NULL; | |
4aa65636 ACM |
178 | out_delete: |
179 | perf_session__delete(self); | |
180 | return NULL; | |
94c744b6 ACM |
181 | } |
182 | ||
d65a458b ACM |
183 | static void perf_session__delete_dead_threads(struct perf_session *self) |
184 | { | |
185 | struct thread *n, *t; | |
186 | ||
187 | list_for_each_entry_safe(t, n, &self->dead_threads, node) { | |
188 | list_del(&t->node); | |
189 | thread__delete(t); | |
190 | } | |
191 | } | |
192 | ||
193 | static void perf_session__delete_threads(struct perf_session *self) | |
194 | { | |
195 | struct rb_node *nd = rb_first(&self->threads); | |
196 | ||
197 | while (nd) { | |
198 | struct thread *t = rb_entry(nd, struct thread, rb_node); | |
199 | ||
200 | rb_erase(&t->rb_node, &self->threads); | |
201 | nd = rb_next(nd); | |
202 | thread__delete(t); | |
203 | } | |
204 | } | |
205 | ||
94c744b6 ACM |
206 | void perf_session__delete(struct perf_session *self) |
207 | { | |
208 | perf_header__exit(&self->header); | |
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); | |
215 | } | |
a328626b | 216 | |
720a3aeb ACM |
217 | void perf_session__remove_thread(struct perf_session *self, struct thread *th) |
218 | { | |
70597f21 | 219 | self->last_match = NULL; |
720a3aeb ACM |
220 | rb_erase(&th->rb_node, &self->threads); |
221 | /* | |
222 | * We may have references to this thread, for instance in some hist_entry | |
223 | * instances, so just move them to a separate list. | |
224 | */ | |
225 | list_add_tail(&th->node, &self->dead_threads); | |
226 | } | |
227 | ||
a328626b ACM |
228 | static bool symbol__match_parent_regex(struct symbol *sym) |
229 | { | |
230 | if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) | |
231 | return 1; | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
b3c9ac08 ACM |
236 | struct map_symbol *perf_session__resolve_callchain(struct perf_session *self, |
237 | struct thread *thread, | |
238 | struct ip_callchain *chain, | |
239 | struct symbol **parent) | |
a328626b ACM |
240 | { |
241 | u8 cpumode = PERF_RECORD_MISC_USER; | |
a328626b | 242 | unsigned int i; |
ad5b217b | 243 | struct map_symbol *syms = calloc(chain->nr, sizeof(*syms)); |
a328626b | 244 | |
ad5b217b ACM |
245 | if (!syms) |
246 | return NULL; | |
a328626b ACM |
247 | |
248 | for (i = 0; i < chain->nr; i++) { | |
249 | u64 ip = chain->ips[i]; | |
250 | struct addr_location al; | |
251 | ||
252 | if (ip >= PERF_CONTEXT_MAX) { | |
253 | switch (ip) { | |
254 | case PERF_CONTEXT_HV: | |
255 | cpumode = PERF_RECORD_MISC_HYPERVISOR; break; | |
256 | case PERF_CONTEXT_KERNEL: | |
257 | cpumode = PERF_RECORD_MISC_KERNEL; break; | |
258 | case PERF_CONTEXT_USER: | |
259 | cpumode = PERF_RECORD_MISC_USER; break; | |
260 | default: | |
261 | break; | |
262 | } | |
263 | continue; | |
264 | } | |
265 | ||
a1645ce1 | 266 | al.filtered = false; |
a328626b | 267 | thread__find_addr_location(thread, self, cpumode, |
a1645ce1 | 268 | MAP__FUNCTION, thread->pid, ip, &al, NULL); |
a328626b ACM |
269 | if (al.sym != NULL) { |
270 | if (sort__has_parent && !*parent && | |
271 | symbol__match_parent_regex(al.sym)) | |
272 | *parent = al.sym; | |
d599db3f | 273 | if (!symbol_conf.use_callchain) |
a328626b | 274 | break; |
b3c9ac08 ACM |
275 | syms[i].map = al.map; |
276 | syms[i].sym = al.sym; | |
a328626b ACM |
277 | } |
278 | } | |
279 | ||
280 | return syms; | |
281 | } | |
06aae590 | 282 | |
640c03ce ACM |
283 | static int process_event_synth_stub(event_t *event __used, |
284 | struct perf_session *session __used) | |
285 | { | |
286 | dump_printf(": unhandled!\n"); | |
287 | return 0; | |
288 | } | |
289 | ||
06aae590 | 290 | static int process_event_stub(event_t *event __used, |
640c03ce | 291 | struct sample_data *sample __used, |
06aae590 ACM |
292 | struct perf_session *session __used) |
293 | { | |
294 | dump_printf(": unhandled!\n"); | |
295 | return 0; | |
296 | } | |
297 | ||
d6b17beb FW |
298 | static int process_finished_round_stub(event_t *event __used, |
299 | struct perf_session *session __used, | |
300 | struct perf_event_ops *ops __used) | |
301 | { | |
302 | dump_printf(": unhandled!\n"); | |
303 | return 0; | |
304 | } | |
305 | ||
306 | static int process_finished_round(event_t *event, | |
307 | struct perf_session *session, | |
308 | struct perf_event_ops *ops); | |
309 | ||
06aae590 ACM |
310 | static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) |
311 | { | |
55aa640f ACM |
312 | if (handler->sample == NULL) |
313 | handler->sample = process_event_stub; | |
314 | if (handler->mmap == NULL) | |
315 | handler->mmap = process_event_stub; | |
316 | if (handler->comm == NULL) | |
317 | handler->comm = process_event_stub; | |
318 | if (handler->fork == NULL) | |
319 | handler->fork = process_event_stub; | |
320 | if (handler->exit == NULL) | |
321 | handler->exit = process_event_stub; | |
322 | if (handler->lost == NULL) | |
37982ba0 | 323 | handler->lost = event__process_lost; |
55aa640f ACM |
324 | if (handler->read == NULL) |
325 | handler->read = process_event_stub; | |
326 | if (handler->throttle == NULL) | |
327 | handler->throttle = process_event_stub; | |
328 | if (handler->unthrottle == NULL) | |
329 | handler->unthrottle = process_event_stub; | |
2c46dbb5 | 330 | if (handler->attr == NULL) |
640c03ce | 331 | handler->attr = process_event_synth_stub; |
cd19a035 | 332 | if (handler->event_type == NULL) |
640c03ce | 333 | handler->event_type = process_event_synth_stub; |
9215545e | 334 | if (handler->tracing_data == NULL) |
640c03ce | 335 | handler->tracing_data = process_event_synth_stub; |
c7929e47 | 336 | if (handler->build_id == NULL) |
640c03ce | 337 | handler->build_id = process_event_synth_stub; |
d6b17beb FW |
338 | if (handler->finished_round == NULL) { |
339 | if (handler->ordered_samples) | |
340 | handler->finished_round = process_finished_round; | |
341 | else | |
342 | handler->finished_round = process_finished_round_stub; | |
343 | } | |
06aae590 ACM |
344 | } |
345 | ||
ba21594c ACM |
346 | void mem_bswap_64(void *src, int byte_size) |
347 | { | |
348 | u64 *m = src; | |
349 | ||
350 | while (byte_size > 0) { | |
351 | *m = bswap_64(*m); | |
352 | byte_size -= sizeof(u64); | |
353 | ++m; | |
354 | } | |
355 | } | |
356 | ||
357 | static void event__all64_swap(event_t *self) | |
358 | { | |
359 | struct perf_event_header *hdr = &self->header; | |
360 | mem_bswap_64(hdr + 1, self->header.size - sizeof(*hdr)); | |
361 | } | |
362 | ||
363 | static void event__comm_swap(event_t *self) | |
364 | { | |
365 | self->comm.pid = bswap_32(self->comm.pid); | |
366 | self->comm.tid = bswap_32(self->comm.tid); | |
367 | } | |
368 | ||
369 | static void event__mmap_swap(event_t *self) | |
370 | { | |
371 | self->mmap.pid = bswap_32(self->mmap.pid); | |
372 | self->mmap.tid = bswap_32(self->mmap.tid); | |
373 | self->mmap.start = bswap_64(self->mmap.start); | |
374 | self->mmap.len = bswap_64(self->mmap.len); | |
375 | self->mmap.pgoff = bswap_64(self->mmap.pgoff); | |
376 | } | |
377 | ||
378 | static void event__task_swap(event_t *self) | |
379 | { | |
380 | self->fork.pid = bswap_32(self->fork.pid); | |
381 | self->fork.tid = bswap_32(self->fork.tid); | |
382 | self->fork.ppid = bswap_32(self->fork.ppid); | |
383 | self->fork.ptid = bswap_32(self->fork.ptid); | |
384 | self->fork.time = bswap_64(self->fork.time); | |
385 | } | |
386 | ||
387 | static void event__read_swap(event_t *self) | |
388 | { | |
389 | self->read.pid = bswap_32(self->read.pid); | |
390 | self->read.tid = bswap_32(self->read.tid); | |
391 | self->read.value = bswap_64(self->read.value); | |
392 | self->read.time_enabled = bswap_64(self->read.time_enabled); | |
393 | self->read.time_running = bswap_64(self->read.time_running); | |
394 | self->read.id = bswap_64(self->read.id); | |
395 | } | |
396 | ||
2c46dbb5 TZ |
397 | static void event__attr_swap(event_t *self) |
398 | { | |
399 | size_t size; | |
400 | ||
401 | self->attr.attr.type = bswap_32(self->attr.attr.type); | |
402 | self->attr.attr.size = bswap_32(self->attr.attr.size); | |
403 | self->attr.attr.config = bswap_64(self->attr.attr.config); | |
404 | self->attr.attr.sample_period = bswap_64(self->attr.attr.sample_period); | |
405 | self->attr.attr.sample_type = bswap_64(self->attr.attr.sample_type); | |
406 | self->attr.attr.read_format = bswap_64(self->attr.attr.read_format); | |
407 | self->attr.attr.wakeup_events = bswap_32(self->attr.attr.wakeup_events); | |
408 | self->attr.attr.bp_type = bswap_32(self->attr.attr.bp_type); | |
409 | self->attr.attr.bp_addr = bswap_64(self->attr.attr.bp_addr); | |
410 | self->attr.attr.bp_len = bswap_64(self->attr.attr.bp_len); | |
411 | ||
412 | size = self->header.size; | |
413 | size -= (void *)&self->attr.id - (void *)self; | |
414 | mem_bswap_64(self->attr.id, size); | |
415 | } | |
416 | ||
cd19a035 TZ |
417 | static void event__event_type_swap(event_t *self) |
418 | { | |
419 | self->event_type.event_type.event_id = | |
420 | bswap_64(self->event_type.event_type.event_id); | |
421 | } | |
422 | ||
9215545e TZ |
423 | static void event__tracing_data_swap(event_t *self) |
424 | { | |
425 | self->tracing_data.size = bswap_32(self->tracing_data.size); | |
426 | } | |
427 | ||
ba21594c ACM |
428 | typedef void (*event__swap_op)(event_t *self); |
429 | ||
430 | static event__swap_op event__swap_ops[] = { | |
431 | [PERF_RECORD_MMAP] = event__mmap_swap, | |
432 | [PERF_RECORD_COMM] = event__comm_swap, | |
433 | [PERF_RECORD_FORK] = event__task_swap, | |
434 | [PERF_RECORD_EXIT] = event__task_swap, | |
435 | [PERF_RECORD_LOST] = event__all64_swap, | |
436 | [PERF_RECORD_READ] = event__read_swap, | |
437 | [PERF_RECORD_SAMPLE] = event__all64_swap, | |
2c46dbb5 | 438 | [PERF_RECORD_HEADER_ATTR] = event__attr_swap, |
cd19a035 | 439 | [PERF_RECORD_HEADER_EVENT_TYPE] = event__event_type_swap, |
9215545e | 440 | [PERF_RECORD_HEADER_TRACING_DATA] = event__tracing_data_swap, |
c7929e47 | 441 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, |
8dc58101 | 442 | [PERF_RECORD_HEADER_MAX] = NULL, |
ba21594c ACM |
443 | }; |
444 | ||
c61e52ee FW |
445 | struct sample_queue { |
446 | u64 timestamp; | |
e4c2df13 | 447 | u64 file_offset; |
28990f75 | 448 | event_t *event; |
c61e52ee FW |
449 | struct list_head list; |
450 | }; | |
451 | ||
020bb75a TG |
452 | static void perf_session_free_sample_buffers(struct perf_session *session) |
453 | { | |
454 | struct ordered_samples *os = &session->ordered_samples; | |
455 | ||
5c891f38 | 456 | while (!list_empty(&os->to_free)) { |
020bb75a TG |
457 | struct sample_queue *sq; |
458 | ||
5c891f38 | 459 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
020bb75a TG |
460 | list_del(&sq->list); |
461 | free(sq); | |
462 | } | |
463 | } | |
464 | ||
cbf41645 TG |
465 | static int perf_session_deliver_event(struct perf_session *session, |
466 | event_t *event, | |
467 | struct sample_data *sample, | |
f74725dc TG |
468 | struct perf_event_ops *ops, |
469 | u64 file_offset); | |
cbf41645 | 470 | |
c61e52ee FW |
471 | static void flush_sample_queue(struct perf_session *s, |
472 | struct perf_event_ops *ops) | |
473 | { | |
a1225dec TG |
474 | struct ordered_samples *os = &s->ordered_samples; |
475 | struct list_head *head = &os->samples; | |
c61e52ee | 476 | struct sample_queue *tmp, *iter; |
640c03ce | 477 | struct sample_data sample; |
a1225dec TG |
478 | u64 limit = os->next_flush; |
479 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; | |
c61e52ee | 480 | |
d6b17beb | 481 | if (!ops->ordered_samples || !limit) |
c61e52ee FW |
482 | return; |
483 | ||
484 | list_for_each_entry_safe(iter, tmp, head, list) { | |
485 | if (iter->timestamp > limit) | |
a1225dec | 486 | break; |
c61e52ee | 487 | |
9c90a61c | 488 | event__parse_sample(iter->event, s, &sample); |
f74725dc TG |
489 | perf_session_deliver_event(s, iter->event, &sample, ops, |
490 | iter->file_offset); | |
c61e52ee | 491 | |
a1225dec | 492 | os->last_flush = iter->timestamp; |
c61e52ee | 493 | list_del(&iter->list); |
020bb75a | 494 | list_add(&iter->list, &os->sample_cache); |
c61e52ee | 495 | } |
a1225dec TG |
496 | |
497 | if (list_empty(head)) { | |
498 | os->last_sample = NULL; | |
499 | } else if (last_ts <= limit) { | |
500 | os->last_sample = | |
501 | list_entry(head->prev, struct sample_queue, list); | |
502 | } | |
c61e52ee FW |
503 | } |
504 | ||
d6b17beb FW |
505 | /* |
506 | * When perf record finishes a pass on every buffers, it records this pseudo | |
507 | * event. | |
508 | * We record the max timestamp t found in the pass n. | |
509 | * Assuming these timestamps are monotonic across cpus, we know that if | |
510 | * a buffer still has events with timestamps below t, they will be all | |
511 | * available and then read in the pass n + 1. | |
512 | * Hence when we start to read the pass n + 2, we can safely flush every | |
513 | * events with timestamps below t. | |
514 | * | |
515 | * ============ PASS n ================= | |
516 | * CPU 0 | CPU 1 | |
517 | * | | |
518 | * cnt1 timestamps | cnt2 timestamps | |
519 | * 1 | 2 | |
520 | * 2 | 3 | |
521 | * - | 4 <--- max recorded | |
522 | * | |
523 | * ============ PASS n + 1 ============== | |
524 | * CPU 0 | CPU 1 | |
525 | * | | |
526 | * cnt1 timestamps | cnt2 timestamps | |
527 | * 3 | 5 | |
528 | * 4 | 6 | |
529 | * 5 | 7 <---- max recorded | |
530 | * | |
531 | * Flush every events below timestamp 4 | |
532 | * | |
533 | * ============ PASS n + 2 ============== | |
534 | * CPU 0 | CPU 1 | |
535 | * | | |
536 | * cnt1 timestamps | cnt2 timestamps | |
537 | * 6 | 8 | |
538 | * 7 | 9 | |
539 | * - | 10 | |
540 | * | |
541 | * Flush every events below timestamp 7 | |
542 | * etc... | |
543 | */ | |
544 | static int process_finished_round(event_t *event __used, | |
545 | struct perf_session *session, | |
546 | struct perf_event_ops *ops) | |
547 | { | |
548 | flush_sample_queue(session, ops); | |
549 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
c61e52ee | 554 | /* The queue is ordered by time */ |
cbf41645 | 555 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
c61e52ee | 556 | { |
a1225dec TG |
557 | struct ordered_samples *os = &s->ordered_samples; |
558 | struct sample_queue *sample = os->last_sample; | |
559 | u64 timestamp = new->timestamp; | |
560 | struct list_head *p; | |
c61e52ee | 561 | |
a1225dec | 562 | os->last_sample = new; |
c61e52ee | 563 | |
a1225dec TG |
564 | if (!sample) { |
565 | list_add(&new->list, &os->samples); | |
566 | os->max_timestamp = timestamp; | |
c61e52ee FW |
567 | return; |
568 | } | |
569 | ||
570 | /* | |
a1225dec TG |
571 | * last_sample might point to some random place in the list as it's |
572 | * the last queued event. We expect that the new event is close to | |
573 | * this. | |
c61e52ee | 574 | */ |
a1225dec TG |
575 | if (sample->timestamp <= timestamp) { |
576 | while (sample->timestamp <= timestamp) { | |
577 | p = sample->list.next; | |
578 | if (p == &os->samples) { | |
579 | list_add_tail(&new->list, &os->samples); | |
580 | os->max_timestamp = timestamp; | |
581 | return; | |
582 | } | |
583 | sample = list_entry(p, struct sample_queue, list); | |
584 | } | |
585 | list_add_tail(&new->list, &sample->list); | |
586 | } else { | |
587 | while (sample->timestamp > timestamp) { | |
588 | p = sample->list.prev; | |
589 | if (p == &os->samples) { | |
590 | list_add(&new->list, &os->samples); | |
591 | return; | |
592 | } | |
593 | sample = list_entry(p, struct sample_queue, list); | |
594 | } | |
595 | list_add(&new->list, &sample->list); | |
596 | } | |
c61e52ee FW |
597 | } |
598 | ||
5c891f38 TG |
599 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
600 | ||
cbf41645 | 601 | static int perf_session_queue_event(struct perf_session *s, event_t *event, |
e4c2df13 | 602 | struct sample_data *data, u64 file_offset) |
c61e52ee | 603 | { |
5c891f38 TG |
604 | struct ordered_samples *os = &s->ordered_samples; |
605 | struct list_head *sc = &os->sample_cache; | |
c61e52ee FW |
606 | u64 timestamp = data->time; |
607 | struct sample_queue *new; | |
c61e52ee | 608 | |
79a14c1f | 609 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
610 | return -ETIME; |
611 | ||
c61e52ee FW |
612 | if (timestamp < s->ordered_samples.last_flush) { |
613 | printf("Warning: Timestamp below last timeslice flush\n"); | |
614 | return -EINVAL; | |
615 | } | |
616 | ||
020bb75a TG |
617 | if (!list_empty(sc)) { |
618 | new = list_entry(sc->next, struct sample_queue, list); | |
619 | list_del(&new->list); | |
5c891f38 TG |
620 | } else if (os->sample_buffer) { |
621 | new = os->sample_buffer + os->sample_buffer_idx; | |
622 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) | |
623 | os->sample_buffer = NULL; | |
020bb75a | 624 | } else { |
5c891f38 TG |
625 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
626 | if (!os->sample_buffer) | |
020bb75a | 627 | return -ENOMEM; |
5c891f38 TG |
628 | list_add(&os->sample_buffer->list, &os->to_free); |
629 | os->sample_buffer_idx = 2; | |
630 | new = os->sample_buffer + 1; | |
020bb75a | 631 | } |
c61e52ee FW |
632 | |
633 | new->timestamp = timestamp; | |
e4c2df13 | 634 | new->file_offset = file_offset; |
fe174207 | 635 | new->event = event; |
c61e52ee | 636 | |
cbf41645 | 637 | __queue_event(new, s); |
640c03ce | 638 | |
640c03ce ACM |
639 | return 0; |
640 | } | |
c61e52ee | 641 | |
640c03ce ACM |
642 | static void callchain__dump(struct sample_data *sample) |
643 | { | |
644 | unsigned int i; | |
c61e52ee | 645 | |
640c03ce ACM |
646 | if (!dump_trace) |
647 | return; | |
c61e52ee | 648 | |
640c03ce ACM |
649 | printf("... chain: nr:%Lu\n", sample->callchain->nr); |
650 | ||
651 | for (i = 0; i < sample->callchain->nr; i++) | |
652 | printf("..... %2d: %016Lx\n", i, sample->callchain->ips[i]); | |
c61e52ee FW |
653 | } |
654 | ||
9c90a61c ACM |
655 | static void perf_session__print_tstamp(struct perf_session *session, |
656 | event_t *event, | |
657 | struct sample_data *sample) | |
658 | { | |
659 | if (event->header.type != PERF_RECORD_SAMPLE && | |
660 | !session->sample_id_all) { | |
661 | fputs("-1 -1 ", stdout); | |
662 | return; | |
663 | } | |
664 | ||
665 | if ((session->sample_type & PERF_SAMPLE_CPU)) | |
666 | printf("%u ", sample->cpu); | |
667 | ||
668 | if (session->sample_type & PERF_SAMPLE_TIME) | |
669 | printf("%Lu ", sample->time); | |
670 | } | |
671 | ||
9aefcab0 TG |
672 | static void dump_event(struct perf_session *session, event_t *event, |
673 | u64 file_offset, struct sample_data *sample) | |
674 | { | |
675 | if (!dump_trace) | |
676 | return; | |
677 | ||
678 | dump_printf("\n%#Lx [%#x]: event: %d\n", file_offset, | |
679 | event->header.size, event->header.type); | |
680 | ||
681 | trace_event(event); | |
682 | ||
683 | if (sample) | |
684 | perf_session__print_tstamp(session, event, sample); | |
685 | ||
686 | dump_printf("%#Lx [%#x]: PERF_RECORD_%s", | |
687 | file_offset, event->header.size, | |
688 | event__get_event_name(event->header.type)); | |
689 | } | |
690 | ||
691 | static void dump_sample(struct perf_session *session, event_t *event, | |
692 | struct sample_data *sample) | |
693 | { | |
694 | dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc, | |
695 | sample->pid, sample->tid, sample->ip, sample->period); | |
696 | ||
697 | if (session->sample_type & PERF_SAMPLE_CALLCHAIN) | |
698 | callchain__dump(sample); | |
699 | } | |
700 | ||
cbf41645 TG |
701 | static int perf_session_deliver_event(struct perf_session *session, |
702 | event_t *event, | |
703 | struct sample_data *sample, | |
f74725dc TG |
704 | struct perf_event_ops *ops, |
705 | u64 file_offset __used) | |
cbf41645 TG |
706 | { |
707 | switch (event->header.type) { | |
708 | case PERF_RECORD_SAMPLE: | |
709 | return ops->sample(event, sample, session); | |
710 | case PERF_RECORD_MMAP: | |
711 | return ops->mmap(event, sample, session); | |
712 | case PERF_RECORD_COMM: | |
713 | return ops->comm(event, sample, session); | |
714 | case PERF_RECORD_FORK: | |
715 | return ops->fork(event, sample, session); | |
716 | case PERF_RECORD_EXIT: | |
717 | return ops->exit(event, sample, session); | |
718 | case PERF_RECORD_LOST: | |
719 | return ops->lost(event, sample, session); | |
720 | case PERF_RECORD_READ: | |
721 | return ops->read(event, sample, session); | |
722 | case PERF_RECORD_THROTTLE: | |
723 | return ops->throttle(event, sample, session); | |
724 | case PERF_RECORD_UNTHROTTLE: | |
725 | return ops->unthrottle(event, sample, session); | |
726 | default: | |
727 | ++session->hists.stats.nr_unknown_events; | |
728 | return -1; | |
729 | } | |
730 | } | |
731 | ||
732 | static int perf_session__process_event(struct perf_session *session, | |
06aae590 ACM |
733 | event_t *event, |
734 | struct perf_event_ops *ops, | |
0331ee0c | 735 | u64 file_offset) |
06aae590 | 736 | { |
640c03ce | 737 | struct sample_data sample; |
cbf41645 | 738 | int ret; |
640c03ce | 739 | |
cbf41645 | 740 | if (session->header.needs_swap && event__swap_ops[event->header.type]) |
640c03ce ACM |
741 | event__swap_ops[event->header.type](event); |
742 | ||
9aefcab0 TG |
743 | if (event->header.type >= PERF_RECORD_HEADER_MAX) |
744 | return -EINVAL; | |
640c03ce | 745 | |
9aefcab0 TG |
746 | hists__inc_nr_events(&session->hists, event->header.type); |
747 | ||
748 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
749 | dump_event(session, event, file_offset, NULL); | |
750 | else { | |
751 | event__parse_sample(event, session, &sample); | |
752 | dump_event(session, event, file_offset, &sample); | |
06aae590 ACM |
753 | } |
754 | ||
cbf41645 | 755 | /* These events are processed right away */ |
06aae590 ACM |
756 | switch (event->header.type) { |
757 | case PERF_RECORD_SAMPLE: | |
cbf41645 | 758 | if (session->sample_type & PERF_SAMPLE_CALLCHAIN) { |
640c03ce ACM |
759 | if (!ip_callchain__valid(sample.callchain, event)) { |
760 | pr_debug("call-chain problem with event, " | |
761 | "skipping it.\n"); | |
cbf41645 TG |
762 | ++session->hists.stats.nr_invalid_chains; |
763 | session->hists.stats.total_invalid_chains += | |
764 | sample.period; | |
640c03ce ACM |
765 | return 0; |
766 | } | |
640c03ce | 767 | } |
9aefcab0 | 768 | dump_sample(session, event, &sample); |
cbf41645 | 769 | break; |
640c03ce | 770 | |
2c46dbb5 | 771 | case PERF_RECORD_HEADER_ATTR: |
cbf41645 | 772 | return ops->attr(event, session); |
cd19a035 | 773 | case PERF_RECORD_HEADER_EVENT_TYPE: |
cbf41645 | 774 | return ops->event_type(event, session); |
9215545e TZ |
775 | case PERF_RECORD_HEADER_TRACING_DATA: |
776 | /* setup for reading amidst mmap */ | |
cbf41645 TG |
777 | lseek(session->fd, file_offset, SEEK_SET); |
778 | return ops->tracing_data(event, session); | |
c7929e47 | 779 | case PERF_RECORD_HEADER_BUILD_ID: |
cbf41645 | 780 | return ops->build_id(event, session); |
d6b17beb | 781 | case PERF_RECORD_FINISHED_ROUND: |
cbf41645 | 782 | return ops->finished_round(event, session, ops); |
06aae590 | 783 | default: |
cbf41645 | 784 | break; |
06aae590 | 785 | } |
cbf41645 TG |
786 | |
787 | if (ops->ordered_samples) { | |
e4c2df13 TG |
788 | ret = perf_session_queue_event(session, event, &sample, |
789 | file_offset); | |
cbf41645 TG |
790 | if (ret != -ETIME) |
791 | return ret; | |
792 | } | |
793 | ||
f74725dc TG |
794 | return perf_session_deliver_event(session, event, &sample, ops, |
795 | file_offset); | |
06aae590 ACM |
796 | } |
797 | ||
ba21594c ACM |
798 | void perf_event_header__bswap(struct perf_event_header *self) |
799 | { | |
800 | self->type = bswap_32(self->type); | |
801 | self->misc = bswap_16(self->misc); | |
802 | self->size = bswap_16(self->size); | |
803 | } | |
804 | ||
06aae590 ACM |
805 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
806 | { | |
807 | struct thread *thread = perf_session__findnew(self, 0); | |
808 | ||
809 | if (thread == NULL || thread__set_comm(thread, "swapper")) { | |
810 | pr_err("problem inserting idle task.\n"); | |
811 | thread = NULL; | |
812 | } | |
813 | ||
814 | return thread; | |
815 | } | |
816 | ||
8dc58101 TZ |
817 | int do_read(int fd, void *buf, size_t size) |
818 | { | |
819 | void *buf_start = buf; | |
820 | ||
821 | while (size) { | |
822 | int ret = read(fd, buf, size); | |
823 | ||
824 | if (ret <= 0) | |
825 | return ret; | |
826 | ||
827 | size -= ret; | |
828 | buf += ret; | |
829 | } | |
830 | ||
831 | return buf - buf_start; | |
832 | } | |
833 | ||
834 | #define session_done() (*(volatile int *)(&session_done)) | |
835 | volatile int session_done; | |
836 | ||
837 | static int __perf_session__process_pipe_events(struct perf_session *self, | |
838 | struct perf_event_ops *ops) | |
839 | { | |
840 | event_t event; | |
841 | uint32_t size; | |
842 | int skip = 0; | |
843 | u64 head; | |
844 | int err; | |
845 | void *p; | |
846 | ||
847 | perf_event_ops__fill_defaults(ops); | |
848 | ||
849 | head = 0; | |
850 | more: | |
851 | err = do_read(self->fd, &event, sizeof(struct perf_event_header)); | |
852 | if (err <= 0) { | |
853 | if (err == 0) | |
854 | goto done; | |
855 | ||
856 | pr_err("failed to read event header\n"); | |
857 | goto out_err; | |
858 | } | |
859 | ||
860 | if (self->header.needs_swap) | |
861 | perf_event_header__bswap(&event.header); | |
862 | ||
863 | size = event.header.size; | |
864 | if (size == 0) | |
865 | size = 8; | |
866 | ||
867 | p = &event; | |
868 | p += sizeof(struct perf_event_header); | |
869 | ||
794e43b5 TZ |
870 | if (size - sizeof(struct perf_event_header)) { |
871 | err = do_read(self->fd, p, | |
872 | size - sizeof(struct perf_event_header)); | |
873 | if (err <= 0) { | |
874 | if (err == 0) { | |
875 | pr_err("unexpected end of event stream\n"); | |
876 | goto done; | |
877 | } | |
8dc58101 | 878 | |
794e43b5 TZ |
879 | pr_err("failed to read event data\n"); |
880 | goto out_err; | |
881 | } | |
8dc58101 TZ |
882 | } |
883 | ||
884 | if (size == 0 || | |
0331ee0c | 885 | (skip = perf_session__process_event(self, &event, ops, head)) < 0) { |
8dc58101 TZ |
886 | dump_printf("%#Lx [%#x]: skipping unknown header type: %d\n", |
887 | head, event.header.size, event.header.type); | |
888 | /* | |
889 | * assume we lost track of the stream, check alignment, and | |
890 | * increment a single u64 in the hope to catch on again 'soon'. | |
891 | */ | |
892 | if (unlikely(head & 7)) | |
893 | head &= ~7ULL; | |
894 | ||
895 | size = 8; | |
896 | } | |
897 | ||
898 | head += size; | |
899 | ||
8dc58101 TZ |
900 | if (skip > 0) |
901 | head += skip; | |
902 | ||
903 | if (!session_done()) | |
904 | goto more; | |
905 | done: | |
906 | err = 0; | |
907 | out_err: | |
020bb75a | 908 | perf_session_free_sample_buffers(self); |
8dc58101 TZ |
909 | return err; |
910 | } | |
911 | ||
0331ee0c | 912 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 ACM |
913 | u64 data_offset, u64 data_size, |
914 | u64 file_size, struct perf_event_ops *ops) | |
06aae590 | 915 | { |
55b44629 | 916 | u64 head, page_offset, file_offset, file_pos, progress_next; |
fe174207 | 917 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0331ee0c | 918 | struct ui_progress *progress; |
55b44629 | 919 | size_t page_size, mmap_size; |
fe174207 | 920 | char *buf, *mmaps[8]; |
06aae590 ACM |
921 | event_t *event; |
922 | uint32_t size; | |
0331ee0c | 923 | |
06aae590 ACM |
924 | perf_event_ops__fill_defaults(ops); |
925 | ||
1b75962e | 926 | page_size = sysconf(_SC_PAGESIZE); |
06aae590 | 927 | |
0331ee0c TG |
928 | page_offset = page_size * (data_offset / page_size); |
929 | file_offset = page_offset; | |
930 | head = data_offset - page_offset; | |
06aae590 | 931 | |
d6513281 TG |
932 | if (data_offset + data_size < file_size) |
933 | file_size = data_offset + data_size; | |
934 | ||
55b44629 TG |
935 | progress_next = file_size / 16; |
936 | progress = ui_progress__new("Processing events...", file_size); | |
937 | if (progress == NULL) | |
938 | return -1; | |
939 | ||
940 | mmap_size = session->mmap_window; | |
941 | if (mmap_size > file_size) | |
942 | mmap_size = file_size; | |
943 | ||
fe174207 TG |
944 | memset(mmaps, 0, sizeof(mmaps)); |
945 | ||
ba21594c ACM |
946 | mmap_prot = PROT_READ; |
947 | mmap_flags = MAP_SHARED; | |
948 | ||
0331ee0c | 949 | if (session->header.needs_swap) { |
ba21594c ACM |
950 | mmap_prot |= PROT_WRITE; |
951 | mmap_flags = MAP_PRIVATE; | |
952 | } | |
06aae590 | 953 | remap: |
55b44629 TG |
954 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd, |
955 | file_offset); | |
06aae590 ACM |
956 | if (buf == MAP_FAILED) { |
957 | pr_err("failed to mmap file\n"); | |
958 | err = -errno; | |
959 | goto out_err; | |
960 | } | |
fe174207 TG |
961 | mmaps[map_idx] = buf; |
962 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 963 | file_pos = file_offset + head; |
06aae590 ACM |
964 | |
965 | more: | |
966 | event = (event_t *)(buf + head); | |
967 | ||
0331ee0c | 968 | if (session->header.needs_swap) |
ba21594c | 969 | perf_event_header__bswap(&event->header); |
06aae590 ACM |
970 | size = event->header.size; |
971 | if (size == 0) | |
972 | size = 8; | |
973 | ||
55b44629 | 974 | if (head + event->header.size >= mmap_size) { |
fe174207 TG |
975 | if (mmaps[map_idx]) { |
976 | munmap(mmaps[map_idx], mmap_size); | |
977 | mmaps[map_idx] = NULL; | |
978 | } | |
06aae590 | 979 | |
0331ee0c TG |
980 | page_offset = page_size * (head / page_size); |
981 | file_offset += page_offset; | |
982 | head -= page_offset; | |
06aae590 ACM |
983 | goto remap; |
984 | } | |
985 | ||
986 | size = event->header.size; | |
987 | ||
d6513281 TG |
988 | if (size == 0 || |
989 | perf_session__process_event(session, event, ops, file_pos) < 0) { | |
ba21594c | 990 | dump_printf("%#Lx [%#x]: skipping unknown header type: %d\n", |
0331ee0c | 991 | file_offset + head, event->header.size, |
06aae590 ACM |
992 | event->header.type); |
993 | /* | |
994 | * assume we lost track of the stream, check alignment, and | |
995 | * increment a single u64 in the hope to catch on again 'soon'. | |
996 | */ | |
997 | if (unlikely(head & 7)) | |
998 | head &= ~7ULL; | |
999 | ||
1000 | size = 8; | |
1001 | } | |
1002 | ||
1003 | head += size; | |
d6513281 | 1004 | file_pos += size; |
06aae590 | 1005 | |
55b44629 TG |
1006 | if (file_pos >= progress_next) { |
1007 | progress_next += file_size / 16; | |
1008 | ui_progress__update(progress, file_pos); | |
1009 | } | |
1010 | ||
d6513281 | 1011 | if (file_pos < file_size) |
06aae590 | 1012 | goto more; |
d6513281 | 1013 | |
06aae590 | 1014 | err = 0; |
c61e52ee | 1015 | /* do the final flush for ordered samples */ |
0331ee0c TG |
1016 | session->ordered_samples.next_flush = ULLONG_MAX; |
1017 | flush_sample_queue(session, ops); | |
06aae590 | 1018 | out_err: |
5f4d3f88 | 1019 | ui_progress__delete(progress); |
068ffaa8 ACM |
1020 | |
1021 | if (ops->lost == event__process_lost && | |
0331ee0c | 1022 | session->hists.stats.total_lost != 0) { |
068ffaa8 ACM |
1023 | ui__warning("Processed %Lu events and LOST %Lu!\n\n" |
1024 | "Check IO/CPU overload!\n\n", | |
0331ee0c TG |
1025 | session->hists.stats.total_period, |
1026 | session->hists.stats.total_lost); | |
068ffaa8 | 1027 | } |
0331ee0c TG |
1028 | |
1029 | if (session->hists.stats.nr_unknown_events != 0) { | |
068ffaa8 ACM |
1030 | ui__warning("Found %u unknown events!\n\n" |
1031 | "Is this an older tool processing a perf.data " | |
1032 | "file generated by a more recent tool?\n\n" | |
1033 | "If that is not the case, consider " | |
1034 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
0331ee0c | 1035 | session->hists.stats.nr_unknown_events); |
068ffaa8 | 1036 | } |
0331ee0c | 1037 | |
640c03ce ACM |
1038 | if (session->hists.stats.nr_invalid_chains != 0) { |
1039 | ui__warning("Found invalid callchains!\n\n" | |
1040 | "%u out of %u events were discarded for this reason.\n\n" | |
1041 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
1042 | session->hists.stats.nr_invalid_chains, | |
1043 | session->hists.stats.nr_events[PERF_RECORD_SAMPLE]); | |
1044 | } | |
1045 | ||
020bb75a | 1046 | perf_session_free_sample_buffers(session); |
06aae590 ACM |
1047 | return err; |
1048 | } | |
27295592 | 1049 | |
6122e4e4 ACM |
1050 | int perf_session__process_events(struct perf_session *self, |
1051 | struct perf_event_ops *ops) | |
1052 | { | |
1053 | int err; | |
1054 | ||
1055 | if (perf_session__register_idle_thread(self) == NULL) | |
1056 | return -ENOMEM; | |
1057 | ||
8dc58101 TZ |
1058 | if (!self->fd_pipe) |
1059 | err = __perf_session__process_events(self, | |
1060 | self->header.data_offset, | |
1061 | self->header.data_size, | |
1062 | self->size, ops); | |
1063 | else | |
1064 | err = __perf_session__process_pipe_events(self, ops); | |
88ca895d | 1065 | |
6122e4e4 ACM |
1066 | return err; |
1067 | } | |
1068 | ||
d549c769 | 1069 | bool perf_session__has_traces(struct perf_session *self, const char *msg) |
27295592 ACM |
1070 | { |
1071 | if (!(self->sample_type & PERF_SAMPLE_RAW)) { | |
d549c769 ACM |
1072 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1073 | return false; | |
27295592 ACM |
1074 | } |
1075 | ||
d549c769 | 1076 | return true; |
27295592 | 1077 | } |
56b03f3c | 1078 | |
a1645ce1 | 1079 | int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps, |
56b03f3c ACM |
1080 | const char *symbol_name, |
1081 | u64 addr) | |
1082 | { | |
1083 | char *bracket; | |
9de89fe7 | 1084 | enum map_type i; |
a1645ce1 ZY |
1085 | struct ref_reloc_sym *ref; |
1086 | ||
1087 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1088 | if (ref == NULL) | |
1089 | return -ENOMEM; | |
56b03f3c | 1090 | |
a1645ce1 ZY |
1091 | ref->name = strdup(symbol_name); |
1092 | if (ref->name == NULL) { | |
1093 | free(ref); | |
56b03f3c | 1094 | return -ENOMEM; |
a1645ce1 | 1095 | } |
56b03f3c | 1096 | |
a1645ce1 | 1097 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1098 | if (bracket) |
1099 | *bracket = '\0'; | |
1100 | ||
a1645ce1 | 1101 | ref->addr = addr; |
9de89fe7 ACM |
1102 | |
1103 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1104 | struct kmap *kmap = map__kmap(maps[i]); |
1105 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1106 | } |
1107 | ||
56b03f3c ACM |
1108 | return 0; |
1109 | } | |
1f626bc3 ACM |
1110 | |
1111 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) | |
1112 | { | |
1113 | return __dsos__fprintf(&self->host_machine.kernel_dsos, fp) + | |
1114 | __dsos__fprintf(&self->host_machine.user_dsos, fp) + | |
1115 | machines__fprintf_dsos(&self->machines, fp); | |
1116 | } | |
f869097e ACM |
1117 | |
1118 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, | |
1119 | bool with_hits) | |
1120 | { | |
1121 | size_t ret = machine__fprintf_dsos_buildid(&self->host_machine, fp, with_hits); | |
1122 | return ret + machines__fprintf_dsos_buildid(&self->machines, fp, with_hits); | |
1123 | } |