1 #include <linux/types.h> 2 #include "event.h" 3 #include "debug.h" 4 #include "machine.h" 5 #include "sort.h" 6 #include "string.h" 7 #include "strlist.h" 8 #include "thread.h" 9 #include "thread_map.h" 10 11 static const char *perf_event__names[] = { 12 [0] = "TOTAL", 13 [PERF_RECORD_MMAP] = "MMAP", 14 [PERF_RECORD_MMAP2] = "MMAP2", 15 [PERF_RECORD_LOST] = "LOST", 16 [PERF_RECORD_COMM] = "COMM", 17 [PERF_RECORD_EXIT] = "EXIT", 18 [PERF_RECORD_THROTTLE] = "THROTTLE", 19 [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", 20 [PERF_RECORD_FORK] = "FORK", 21 [PERF_RECORD_READ] = "READ", 22 [PERF_RECORD_SAMPLE] = "SAMPLE", 23 [PERF_RECORD_HEADER_ATTR] = "ATTR", 24 [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", 25 [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", 26 [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", 27 [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", 28 }; 29 30 const char *perf_event__name(unsigned int id) 31 { 32 if (id >= ARRAY_SIZE(perf_event__names)) 33 return "INVALID"; 34 if (!perf_event__names[id]) 35 return "UNKNOWN"; 36 return perf_event__names[id]; 37 } 38 39 static struct perf_sample synth_sample = { 40 .pid = -1, 41 .tid = -1, 42 .time = -1, 43 .stream_id = -1, 44 .cpu = -1, 45 .period = 1, 46 }; 47 48 static pid_t perf_event__get_comm_tgid(pid_t pid, char *comm, size_t len) 49 { 50 char filename[PATH_MAX]; 51 char bf[BUFSIZ]; 52 FILE *fp; 53 size_t size = 0; 54 pid_t tgid = -1; 55 56 snprintf(filename, sizeof(filename), "/proc/%d/status", pid); 57 58 fp = fopen(filename, "r"); 59 if (fp == NULL) { 60 pr_debug("couldn't open %s\n", filename); 61 return 0; 62 } 63 64 while (!comm[0] || (tgid < 0)) { 65 if (fgets(bf, sizeof(bf), fp) == NULL) { 66 pr_warning("couldn't get COMM and pgid, malformed %s\n", 67 filename); 68 break; 69 } 70 71 if (memcmp(bf, "Name:", 5) == 0) { 72 char *name = bf + 5; 73 while (*name && isspace(*name)) 74 ++name; 75 size = strlen(name) - 1; 76 if (size >= len) 77 size = len - 1; 78 memcpy(comm, name, size); 79 comm[size] = '\0'; 80 81 } else if (memcmp(bf, "Tgid:", 5) == 0) { 82 char *tgids = bf + 5; 83 while (*tgids && isspace(*tgids)) 84 ++tgids; 85 tgid = atoi(tgids); 86 } 87 } 88 89 fclose(fp); 90 91 return tgid; 92 } 93 94 static pid_t perf_event__synthesize_comm(struct perf_tool *tool, 95 union perf_event *event, pid_t pid, 96 int full, 97 perf_event__handler_t process, 98 struct machine *machine) 99 { 100 char filename[PATH_MAX]; 101 size_t size; 102 DIR *tasks; 103 struct dirent dirent, *next; 104 pid_t tgid; 105 106 memset(&event->comm, 0, sizeof(event->comm)); 107 108 tgid = perf_event__get_comm_tgid(pid, event->comm.comm, 109 sizeof(event->comm.comm)); 110 if (tgid < 0) 111 goto out; 112 113 event->comm.pid = tgid; 114 event->comm.header.type = PERF_RECORD_COMM; 115 116 size = strlen(event->comm.comm) + 1; 117 size = PERF_ALIGN(size, sizeof(u64)); 118 memset(event->comm.comm + size, 0, machine->id_hdr_size); 119 event->comm.header.size = (sizeof(event->comm) - 120 (sizeof(event->comm.comm) - size) + 121 machine->id_hdr_size); 122 if (!full) { 123 event->comm.tid = pid; 124 125 if (process(tool, event, &synth_sample, machine) != 0) 126 return -1; 127 128 goto out; 129 } 130 131 snprintf(filename, sizeof(filename), "/proc/%d/task", pid); 132 133 tasks = opendir(filename); 134 if (tasks == NULL) { 135 pr_debug("couldn't open %s\n", filename); 136 return 0; 137 } 138 139 while (!readdir_r(tasks, &dirent, &next) && next) { 140 char *end; 141 pid = strtol(dirent.d_name, &end, 10); 142 if (*end) 143 continue; 144 145 /* already have tgid; jut want to update the comm */ 146 (void) perf_event__get_comm_tgid(pid, event->comm.comm, 147 sizeof(event->comm.comm)); 148 149 size = strlen(event->comm.comm) + 1; 150 size = PERF_ALIGN(size, sizeof(u64)); 151 memset(event->comm.comm + size, 0, machine->id_hdr_size); 152 event->comm.header.size = (sizeof(event->comm) - 153 (sizeof(event->comm.comm) - size) + 154 machine->id_hdr_size); 155 156 event->comm.tid = pid; 157 158 if (process(tool, event, &synth_sample, machine) != 0) { 159 tgid = -1; 160 break; 161 } 162 } 163 164 closedir(tasks); 165 out: 166 return tgid; 167 } 168 169 static int perf_event__synthesize_mmap_events(struct perf_tool *tool, 170 union perf_event *event, 171 pid_t pid, pid_t tgid, 172 perf_event__handler_t process, 173 struct machine *machine) 174 { 175 char filename[PATH_MAX]; 176 FILE *fp; 177 int rc = 0; 178 179 snprintf(filename, sizeof(filename), "/proc/%d/maps", pid); 180 181 fp = fopen(filename, "r"); 182 if (fp == NULL) { 183 /* 184 * We raced with a task exiting - just return: 185 */ 186 pr_debug("couldn't open %s\n", filename); 187 return -1; 188 } 189 190 event->header.type = PERF_RECORD_MMAP; 191 /* 192 * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c 193 */ 194 event->header.misc = PERF_RECORD_MISC_USER; 195 196 while (1) { 197 char bf[BUFSIZ]; 198 char prot[5]; 199 char execname[PATH_MAX]; 200 char anonstr[] = "//anon"; 201 size_t size; 202 ssize_t n; 203 204 if (fgets(bf, sizeof(bf), fp) == NULL) 205 break; 206 207 /* ensure null termination since stack will be reused. */ 208 strcpy(execname, ""); 209 210 /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ 211 n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n", 212 &event->mmap.start, &event->mmap.len, prot, 213 &event->mmap.pgoff, 214 execname); 215 216 if (n != 5) 217 continue; 218 219 if (prot[2] != 'x') 220 continue; 221 222 if (!strcmp(execname, "")) 223 strcpy(execname, anonstr); 224 225 size = strlen(execname) + 1; 226 memcpy(event->mmap.filename, execname, size); 227 size = PERF_ALIGN(size, sizeof(u64)); 228 event->mmap.len -= event->mmap.start; 229 event->mmap.header.size = (sizeof(event->mmap) - 230 (sizeof(event->mmap.filename) - size)); 231 memset(event->mmap.filename + size, 0, machine->id_hdr_size); 232 event->mmap.header.size += machine->id_hdr_size; 233 event->mmap.pid = tgid; 234 event->mmap.tid = pid; 235 236 if (process(tool, event, &synth_sample, machine) != 0) { 237 rc = -1; 238 break; 239 } 240 } 241 242 fclose(fp); 243 return rc; 244 } 245 246 int perf_event__synthesize_modules(struct perf_tool *tool, 247 perf_event__handler_t process, 248 struct machine *machine) 249 { 250 int rc = 0; 251 struct rb_node *nd; 252 struct map_groups *kmaps = &machine->kmaps; 253 union perf_event *event = zalloc((sizeof(event->mmap) + 254 machine->id_hdr_size)); 255 if (event == NULL) { 256 pr_debug("Not enough memory synthesizing mmap event " 257 "for kernel modules\n"); 258 return -1; 259 } 260 261 event->header.type = PERF_RECORD_MMAP; 262 263 /* 264 * kernel uses 0 for user space maps, see kernel/perf_event.c 265 * __perf_event_mmap 266 */ 267 if (machine__is_host(machine)) 268 event->header.misc = PERF_RECORD_MISC_KERNEL; 269 else 270 event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; 271 272 for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); 273 nd; nd = rb_next(nd)) { 274 size_t size; 275 struct map *pos = rb_entry(nd, struct map, rb_node); 276 277 if (pos->dso->kernel) 278 continue; 279 280 size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); 281 event->mmap.header.type = PERF_RECORD_MMAP; 282 event->mmap.header.size = (sizeof(event->mmap) - 283 (sizeof(event->mmap.filename) - size)); 284 memset(event->mmap.filename + size, 0, machine->id_hdr_size); 285 event->mmap.header.size += machine->id_hdr_size; 286 event->mmap.start = pos->start; 287 event->mmap.len = pos->end - pos->start; 288 event->mmap.pid = machine->pid; 289 290 memcpy(event->mmap.filename, pos->dso->long_name, 291 pos->dso->long_name_len + 1); 292 if (process(tool, event, &synth_sample, machine) != 0) { 293 rc = -1; 294 break; 295 } 296 } 297 298 free(event); 299 return rc; 300 } 301 302 static int __event__synthesize_thread(union perf_event *comm_event, 303 union perf_event *mmap_event, 304 pid_t pid, int full, 305 perf_event__handler_t process, 306 struct perf_tool *tool, 307 struct machine *machine) 308 { 309 pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, full, 310 process, machine); 311 if (tgid == -1) 312 return -1; 313 return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, 314 process, machine); 315 } 316 317 int perf_event__synthesize_thread_map(struct perf_tool *tool, 318 struct thread_map *threads, 319 perf_event__handler_t process, 320 struct machine *machine) 321 { 322 union perf_event *comm_event, *mmap_event; 323 int err = -1, thread, j; 324 325 comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); 326 if (comm_event == NULL) 327 goto out; 328 329 mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); 330 if (mmap_event == NULL) 331 goto out_free_comm; 332 333 err = 0; 334 for (thread = 0; thread < threads->nr; ++thread) { 335 if (__event__synthesize_thread(comm_event, mmap_event, 336 threads->map[thread], 0, 337 process, tool, machine)) { 338 err = -1; 339 break; 340 } 341 342 /* 343 * comm.pid is set to thread group id by 344 * perf_event__synthesize_comm 345 */ 346 if ((int) comm_event->comm.pid != threads->map[thread]) { 347 bool need_leader = true; 348 349 /* is thread group leader in thread_map? */ 350 for (j = 0; j < threads->nr; ++j) { 351 if ((int) comm_event->comm.pid == threads->map[j]) { 352 need_leader = false; 353 break; 354 } 355 } 356 357 /* if not, generate events for it */ 358 if (need_leader && 359 __event__synthesize_thread(comm_event, 360 mmap_event, 361 comm_event->comm.pid, 0, 362 process, tool, machine)) { 363 err = -1; 364 break; 365 } 366 } 367 } 368 free(mmap_event); 369 out_free_comm: 370 free(comm_event); 371 out: 372 return err; 373 } 374 375 int perf_event__synthesize_threads(struct perf_tool *tool, 376 perf_event__handler_t process, 377 struct machine *machine) 378 { 379 DIR *proc; 380 struct dirent dirent, *next; 381 union perf_event *comm_event, *mmap_event; 382 int err = -1; 383 384 comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); 385 if (comm_event == NULL) 386 goto out; 387 388 mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); 389 if (mmap_event == NULL) 390 goto out_free_comm; 391 392 proc = opendir("/proc"); 393 if (proc == NULL) 394 goto out_free_mmap; 395 396 while (!readdir_r(proc, &dirent, &next) && next) { 397 char *end; 398 pid_t pid = strtol(dirent.d_name, &end, 10); 399 400 if (*end) /* only interested in proper numerical dirents */ 401 continue; 402 /* 403 * We may race with exiting thread, so don't stop just because 404 * one thread couldn't be synthesized. 405 */ 406 __event__synthesize_thread(comm_event, mmap_event, pid, 1, 407 process, tool, machine); 408 } 409 410 err = 0; 411 closedir(proc); 412 out_free_mmap: 413 free(mmap_event); 414 out_free_comm: 415 free(comm_event); 416 out: 417 return err; 418 } 419 420 struct process_symbol_args { 421 const char *name; 422 u64 start; 423 }; 424 425 static int find_symbol_cb(void *arg, const char *name, char type, 426 u64 start) 427 { 428 struct process_symbol_args *args = arg; 429 430 /* 431 * Must be a function or at least an alias, as in PARISC64, where "_text" is 432 * an 'A' to the same address as "_stext". 433 */ 434 if (!(symbol_type__is_a(type, MAP__FUNCTION) || 435 type == 'A') || strcmp(name, args->name)) 436 return 0; 437 438 args->start = start; 439 return 1; 440 } 441 442 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, 443 perf_event__handler_t process, 444 struct machine *machine, 445 const char *symbol_name) 446 { 447 size_t size; 448 const char *filename, *mmap_name; 449 char path[PATH_MAX]; 450 char name_buff[PATH_MAX]; 451 struct map *map; 452 int err; 453 /* 454 * We should get this from /sys/kernel/sections/.text, but till that is 455 * available use this, and after it is use this as a fallback for older 456 * kernels. 457 */ 458 struct process_symbol_args args = { .name = symbol_name, }; 459 union perf_event *event = zalloc((sizeof(event->mmap) + 460 machine->id_hdr_size)); 461 if (event == NULL) { 462 pr_debug("Not enough memory synthesizing mmap event " 463 "for kernel modules\n"); 464 return -1; 465 } 466 467 mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); 468 if (machine__is_host(machine)) { 469 /* 470 * kernel uses PERF_RECORD_MISC_USER for user space maps, 471 * see kernel/perf_event.c __perf_event_mmap 472 */ 473 event->header.misc = PERF_RECORD_MISC_KERNEL; 474 filename = "/proc/kallsyms"; 475 } else { 476 event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; 477 if (machine__is_default_guest(machine)) 478 filename = (char *) symbol_conf.default_guest_kallsyms; 479 else { 480 sprintf(path, "%s/proc/kallsyms", machine->root_dir); 481 filename = path; 482 } 483 } 484 485 if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) { 486 free(event); 487 return -ENOENT; 488 } 489 490 map = machine->vmlinux_maps[MAP__FUNCTION]; 491 size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), 492 "%s%s", mmap_name, symbol_name) + 1; 493 size = PERF_ALIGN(size, sizeof(u64)); 494 event->mmap.header.type = PERF_RECORD_MMAP; 495 event->mmap.header.size = (sizeof(event->mmap) - 496 (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); 497 event->mmap.pgoff = args.start; 498 event->mmap.start = map->start; 499 event->mmap.len = map->end - event->mmap.start; 500 event->mmap.pid = machine->pid; 501 502 err = process(tool, event, &synth_sample, machine); 503 free(event); 504 505 return err; 506 } 507 508 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) 509 { 510 return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid); 511 } 512 513 int perf_event__process_comm(struct perf_tool *tool __maybe_unused, 514 union perf_event *event, 515 struct perf_sample *sample __maybe_unused, 516 struct machine *machine) 517 { 518 return machine__process_comm_event(machine, event); 519 } 520 521 int perf_event__process_lost(struct perf_tool *tool __maybe_unused, 522 union perf_event *event, 523 struct perf_sample *sample __maybe_unused, 524 struct machine *machine) 525 { 526 return machine__process_lost_event(machine, event); 527 } 528 529 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) 530 { 531 return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n", 532 event->mmap.pid, event->mmap.tid, event->mmap.start, 533 event->mmap.len, event->mmap.pgoff, event->mmap.filename); 534 } 535 536 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) 537 { 538 return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 539 " %02x:%02x %"PRIu64" %"PRIu64"]: %s\n", 540 event->mmap2.pid, event->mmap2.tid, event->mmap2.start, 541 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, 542 event->mmap2.min, event->mmap2.ino, 543 event->mmap2.ino_generation, 544 event->mmap2.filename); 545 } 546 547 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, 548 union perf_event *event, 549 struct perf_sample *sample __maybe_unused, 550 struct machine *machine) 551 { 552 return machine__process_mmap_event(machine, event); 553 } 554 555 int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, 556 union perf_event *event, 557 struct perf_sample *sample __maybe_unused, 558 struct machine *machine) 559 { 560 return machine__process_mmap2_event(machine, event); 561 } 562 563 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) 564 { 565 return fprintf(fp, "(%d:%d):(%d:%d)\n", 566 event->fork.pid, event->fork.tid, 567 event->fork.ppid, event->fork.ptid); 568 } 569 570 int perf_event__process_fork(struct perf_tool *tool __maybe_unused, 571 union perf_event *event, 572 struct perf_sample *sample __maybe_unused, 573 struct machine *machine) 574 { 575 return machine__process_fork_event(machine, event); 576 } 577 578 int perf_event__process_exit(struct perf_tool *tool __maybe_unused, 579 union perf_event *event, 580 struct perf_sample *sample __maybe_unused, 581 struct machine *machine) 582 { 583 return machine__process_exit_event(machine, event); 584 } 585 586 size_t perf_event__fprintf(union perf_event *event, FILE *fp) 587 { 588 size_t ret = fprintf(fp, "PERF_RECORD_%s", 589 perf_event__name(event->header.type)); 590 591 switch (event->header.type) { 592 case PERF_RECORD_COMM: 593 ret += perf_event__fprintf_comm(event, fp); 594 break; 595 case PERF_RECORD_FORK: 596 case PERF_RECORD_EXIT: 597 ret += perf_event__fprintf_task(event, fp); 598 break; 599 case PERF_RECORD_MMAP: 600 ret += perf_event__fprintf_mmap(event, fp); 601 break; 602 case PERF_RECORD_MMAP2: 603 ret += perf_event__fprintf_mmap2(event, fp); 604 break; 605 default: 606 ret += fprintf(fp, "\n"); 607 } 608 609 return ret; 610 } 611 612 int perf_event__process(struct perf_tool *tool __maybe_unused, 613 union perf_event *event, 614 struct perf_sample *sample __maybe_unused, 615 struct machine *machine) 616 { 617 return machine__process_event(machine, event); 618 } 619 620 void thread__find_addr_map(struct thread *self, 621 struct machine *machine, u8 cpumode, 622 enum map_type type, u64 addr, 623 struct addr_location *al) 624 { 625 struct map_groups *mg = &self->mg; 626 bool load_map = false; 627 628 al->thread = self; 629 al->addr = addr; 630 al->cpumode = cpumode; 631 al->filtered = false; 632 633 if (machine == NULL) { 634 al->map = NULL; 635 return; 636 } 637 638 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { 639 al->level = 'k'; 640 mg = &machine->kmaps; 641 load_map = true; 642 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { 643 al->level = '.'; 644 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { 645 al->level = 'g'; 646 mg = &machine->kmaps; 647 load_map = true; 648 } else { 649 /* 650 * 'u' means guest os user space. 651 * TODO: We don't support guest user space. Might support late. 652 */ 653 if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) 654 al->level = 'u'; 655 else 656 al->level = 'H'; 657 al->map = NULL; 658 659 if ((cpumode == PERF_RECORD_MISC_GUEST_USER || 660 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && 661 !perf_guest) 662 al->filtered = true; 663 if ((cpumode == PERF_RECORD_MISC_USER || 664 cpumode == PERF_RECORD_MISC_KERNEL) && 665 !perf_host) 666 al->filtered = true; 667 668 return; 669 } 670 try_again: 671 al->map = map_groups__find(mg, type, al->addr); 672 if (al->map == NULL) { 673 /* 674 * If this is outside of all known maps, and is a negative 675 * address, try to look it up in the kernel dso, as it might be 676 * a vsyscall or vdso (which executes in user-mode). 677 * 678 * XXX This is nasty, we should have a symbol list in the 679 * "[vdso]" dso, but for now lets use the old trick of looking 680 * in the whole kernel symbol list. 681 */ 682 if ((long long)al->addr < 0 && 683 cpumode == PERF_RECORD_MISC_USER && 684 machine && mg != &machine->kmaps) { 685 mg = &machine->kmaps; 686 goto try_again; 687 } 688 } else { 689 /* 690 * Kernel maps might be changed when loading symbols so loading 691 * must be done prior to using kernel maps. 692 */ 693 if (load_map) 694 map__load(al->map, machine->symbol_filter); 695 al->addr = al->map->map_ip(al->map, al->addr); 696 } 697 } 698 699 void thread__find_addr_location(struct thread *thread, struct machine *machine, 700 u8 cpumode, enum map_type type, u64 addr, 701 struct addr_location *al) 702 { 703 thread__find_addr_map(thread, machine, cpumode, type, addr, al); 704 if (al->map != NULL) 705 al->sym = map__find_symbol(al->map, al->addr, 706 machine->symbol_filter); 707 else 708 al->sym = NULL; 709 } 710 711 int perf_event__preprocess_sample(const union perf_event *event, 712 struct machine *machine, 713 struct addr_location *al, 714 struct perf_sample *sample) 715 { 716 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 717 struct thread *thread = machine__findnew_thread(machine, sample->pid, 718 sample->pid); 719 720 if (thread == NULL) 721 return -1; 722 723 if (symbol_conf.comm_list && 724 !strlist__has_entry(symbol_conf.comm_list, thread->comm)) 725 goto out_filtered; 726 727 dump_printf(" ... thread: %s:%d\n", thread->comm, thread->tid); 728 /* 729 * Have we already created the kernel maps for this machine? 730 * 731 * This should have happened earlier, when we processed the kernel MMAP 732 * events, but for older perf.data files there was no such thing, so do 733 * it now. 734 */ 735 if (cpumode == PERF_RECORD_MISC_KERNEL && 736 machine->vmlinux_maps[MAP__FUNCTION] == NULL) 737 machine__create_kernel_maps(machine); 738 739 thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, 740 sample->ip, al); 741 dump_printf(" ...... dso: %s\n", 742 al->map ? al->map->dso->long_name : 743 al->level == 'H' ? "[hypervisor]" : "<not found>"); 744 al->sym = NULL; 745 al->cpu = sample->cpu; 746 747 if (al->map) { 748 struct dso *dso = al->map->dso; 749 750 if (symbol_conf.dso_list && 751 (!dso || !(strlist__has_entry(symbol_conf.dso_list, 752 dso->short_name) || 753 (dso->short_name != dso->long_name && 754 strlist__has_entry(symbol_conf.dso_list, 755 dso->long_name))))) 756 goto out_filtered; 757 758 al->sym = map__find_symbol(al->map, al->addr, 759 machine->symbol_filter); 760 } 761 762 if (symbol_conf.sym_list && 763 (!al->sym || !strlist__has_entry(symbol_conf.sym_list, 764 al->sym->name))) 765 goto out_filtered; 766 767 return 0; 768 769 out_filtered: 770 al->filtered = true; 771 return 0; 772 } 773
