1 #include <errno.h> 2 #include <fcntl.h> 3 #include <inttypes.h> 4 #include <linux/kernel.h> 5 #include <linux/types.h> 6 #include <perf/cpumap.h> 7 #include <sys/types.h> 8 #include <sys/stat.h> 9 #include <unistd.h> 10 #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ 11 #include <linux/perf_event.h> 12 #include <linux/zalloc.h> 13 #include "cpumap.h" 14 #include "dso.h" 15 #include "event.h" 16 #include "debug.h" 17 #include "hist.h" 18 #include "machine.h" 19 #include "sort.h" 20 #include "string2.h" 21 #include "strlist.h" 22 #include "thread.h" 23 #include "thread_map.h" 24 #include "time-utils.h" 25 #include <linux/ctype.h> 26 #include "map.h" 27 #include "util/namespaces.h" 28 #include "symbol.h" 29 #include "symbol/kallsyms.h" 30 #include "asm/bug.h" 31 #include "stat.h" 32 #include "session.h" 33 #include "bpf-event.h" 34 #include "print_binary.h" 35 #include "tool.h" 36 #include "../perf.h" 37 38 static const char *perf_event__names[] = { 39 [0] = "TOTAL", 40 [PERF_RECORD_MMAP] = "MMAP", 41 [PERF_RECORD_MMAP2] = "MMAP2", 42 [PERF_RECORD_LOST] = "LOST", 43 [PERF_RECORD_COMM] = "COMM", 44 [PERF_RECORD_EXIT] = "EXIT", 45 [PERF_RECORD_THROTTLE] = "THROTTLE", 46 [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", 47 [PERF_RECORD_FORK] = "FORK", 48 [PERF_RECORD_READ] = "READ", 49 [PERF_RECORD_SAMPLE] = "SAMPLE", 50 [PERF_RECORD_AUX] = "AUX", 51 [PERF_RECORD_ITRACE_START] = "ITRACE_START", 52 [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES", 53 [PERF_RECORD_SWITCH] = "SWITCH", 54 [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE", 55 [PERF_RECORD_NAMESPACES] = "NAMESPACES", 56 [PERF_RECORD_KSYMBOL] = "KSYMBOL", 57 [PERF_RECORD_BPF_EVENT] = "BPF_EVENT", 58 [PERF_RECORD_CGROUP] = "CGROUP", 59 [PERF_RECORD_TEXT_POKE] = "TEXT_POKE", 60 [PERF_RECORD_AUX_OUTPUT_HW_ID] = "AUX_OUTPUT_HW_ID", 61 [PERF_RECORD_HEADER_ATTR] = "ATTR", 62 [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", 63 [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", 64 [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", 65 [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", 66 [PERF_RECORD_ID_INDEX] = "ID_INDEX", 67 [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO", 68 [PERF_RECORD_AUXTRACE] = "AUXTRACE", 69 [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR", 70 [PERF_RECORD_THREAD_MAP] = "THREAD_MAP", 71 [PERF_RECORD_CPU_MAP] = "CPU_MAP", 72 [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG", 73 [PERF_RECORD_STAT] = "STAT", 74 [PERF_RECORD_STAT_ROUND] = "STAT_ROUND", 75 [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE", 76 [PERF_RECORD_TIME_CONV] = "TIME_CONV", 77 [PERF_RECORD_HEADER_FEATURE] = "FEATURE", 78 [PERF_RECORD_COMPRESSED] = "COMPRESSED", 79 }; 80 81 const char *perf_event__name(unsigned int id) 82 { 83 if (id >= ARRAY_SIZE(perf_event__names)) 84 return "INVALID"; 85 if (!perf_event__names[id]) 86 return "UNKNOWN"; 87 return perf_event__names[id]; 88 } 89 90 struct process_symbol_args { 91 const char *name; 92 u64 start; 93 }; 94 95 static int find_symbol_cb(void *arg, const char *name, char type, 96 u64 start) 97 { 98 struct process_symbol_args *args = arg; 99 100 /* 101 * Must be a function or at least an alias, as in PARISC64, where "_text" is 102 * an 'A' to the same address as "_stext". 103 */ 104 if (!(kallsyms__is_function(type) || 105 type == 'A') || strcmp(name, args->name)) 106 return 0; 107 108 args->start = start; 109 return 1; 110 } 111 112 int kallsyms__get_function_start(const char *kallsyms_filename, 113 const char *symbol_name, u64 *addr) 114 { 115 struct process_symbol_args args = { .name = symbol_name, }; 116 117 if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0) 118 return -1; 119 120 *addr = args.start; 121 return 0; 122 } 123 124 void perf_event__read_stat_config(struct perf_stat_config *config, 125 struct perf_record_stat_config *event) 126 { 127 unsigned i; 128 129 for (i = 0; i < event->nr; i++) { 130 131 switch (event->data[i].tag) { 132 #define CASE(__term, __val) \ 133 case PERF_STAT_CONFIG_TERM__##__term: \ 134 config->__val = event->data[i].val; \ 135 break; 136 137 CASE(AGGR_MODE, aggr_mode) 138 CASE(SCALE, scale) 139 CASE(INTERVAL, interval) 140 #undef CASE 141 default: 142 pr_warning("unknown stat config term %" PRI_lu64 "\n", 143 event->data[i].tag); 144 } 145 } 146 } 147 148 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) 149 { 150 const char *s; 151 152 if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) 153 s = " exec"; 154 else 155 s = ""; 156 157 return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); 158 } 159 160 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp) 161 { 162 size_t ret = 0; 163 struct perf_ns_link_info *ns_link_info; 164 u32 nr_namespaces, idx; 165 166 ns_link_info = event->namespaces.link_info; 167 nr_namespaces = event->namespaces.nr_namespaces; 168 169 ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[", 170 event->namespaces.pid, 171 event->namespaces.tid, 172 nr_namespaces); 173 174 for (idx = 0; idx < nr_namespaces; idx++) { 175 if (idx && (idx % 4 == 0)) 176 ret += fprintf(fp, "\n\t\t "); 177 178 ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx, 179 perf_ns__name(idx), (u64)ns_link_info[idx].dev, 180 (u64)ns_link_info[idx].ino, 181 ((idx + 1) != nr_namespaces) ? ", " : "]\n"); 182 } 183 184 return ret; 185 } 186 187 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp) 188 { 189 return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n", 190 event->cgroup.id, event->cgroup.path); 191 } 192 193 int perf_event__process_comm(struct perf_tool *tool __maybe_unused, 194 union perf_event *event, 195 struct perf_sample *sample, 196 struct machine *machine) 197 { 198 return machine__process_comm_event(machine, event, sample); 199 } 200 201 int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused, 202 union perf_event *event, 203 struct perf_sample *sample, 204 struct machine *machine) 205 { 206 return machine__process_namespaces_event(machine, event, sample); 207 } 208 209 int perf_event__process_cgroup(struct perf_tool *tool __maybe_unused, 210 union perf_event *event, 211 struct perf_sample *sample, 212 struct machine *machine) 213 { 214 return machine__process_cgroup_event(machine, event, sample); 215 } 216 217 int perf_event__process_lost(struct perf_tool *tool __maybe_unused, 218 union perf_event *event, 219 struct perf_sample *sample, 220 struct machine *machine) 221 { 222 return machine__process_lost_event(machine, event, sample); 223 } 224 225 int perf_event__process_aux(struct perf_tool *tool __maybe_unused, 226 union perf_event *event, 227 struct perf_sample *sample __maybe_unused, 228 struct machine *machine) 229 { 230 return machine__process_aux_event(machine, event); 231 } 232 233 int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused, 234 union perf_event *event, 235 struct perf_sample *sample __maybe_unused, 236 struct machine *machine) 237 { 238 return machine__process_itrace_start_event(machine, event); 239 } 240 241 int perf_event__process_aux_output_hw_id(struct perf_tool *tool __maybe_unused, 242 union perf_event *event, 243 struct perf_sample *sample __maybe_unused, 244 struct machine *machine) 245 { 246 return machine__process_aux_output_hw_id_event(machine, event); 247 } 248 249 int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused, 250 union perf_event *event, 251 struct perf_sample *sample, 252 struct machine *machine) 253 { 254 return machine__process_lost_samples_event(machine, event, sample); 255 } 256 257 int perf_event__process_switch(struct perf_tool *tool __maybe_unused, 258 union perf_event *event, 259 struct perf_sample *sample __maybe_unused, 260 struct machine *machine) 261 { 262 return machine__process_switch_event(machine, event); 263 } 264 265 int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused, 266 union perf_event *event, 267 struct perf_sample *sample __maybe_unused, 268 struct machine *machine) 269 { 270 return machine__process_ksymbol(machine, event, sample); 271 } 272 273 int perf_event__process_bpf(struct perf_tool *tool __maybe_unused, 274 union perf_event *event, 275 struct perf_sample *sample, 276 struct machine *machine) 277 { 278 return machine__process_bpf(machine, event, sample); 279 } 280 281 int perf_event__process_text_poke(struct perf_tool *tool __maybe_unused, 282 union perf_event *event, 283 struct perf_sample *sample, 284 struct machine *machine) 285 { 286 return machine__process_text_poke(machine, event, sample); 287 } 288 289 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) 290 { 291 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n", 292 event->mmap.pid, event->mmap.tid, event->mmap.start, 293 event->mmap.len, event->mmap.pgoff, 294 (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', 295 event->mmap.filename); 296 } 297 298 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) 299 { 300 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) { 301 char sbuild_id[SBUILD_ID_SIZE]; 302 struct build_id bid; 303 304 build_id__init(&bid, event->mmap2.build_id, 305 event->mmap2.build_id_size); 306 build_id__sprintf(&bid, sbuild_id); 307 308 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 309 " <%s>]: %c%c%c%c %s\n", 310 event->mmap2.pid, event->mmap2.tid, event->mmap2.start, 311 event->mmap2.len, event->mmap2.pgoff, sbuild_id, 312 (event->mmap2.prot & PROT_READ) ? 'r' : '-', 313 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', 314 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', 315 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', 316 event->mmap2.filename); 317 } else { 318 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 319 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n", 320 event->mmap2.pid, event->mmap2.tid, event->mmap2.start, 321 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, 322 event->mmap2.min, event->mmap2.ino, 323 event->mmap2.ino_generation, 324 (event->mmap2.prot & PROT_READ) ? 'r' : '-', 325 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', 326 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', 327 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', 328 event->mmap2.filename); 329 } 330 } 331 332 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) 333 { 334 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map); 335 size_t ret; 336 337 ret = fprintf(fp, " nr: "); 338 339 if (threads) 340 ret += thread_map__fprintf(threads, fp); 341 else 342 ret += fprintf(fp, "failed to get threads from event\n"); 343 344 perf_thread_map__put(threads); 345 return ret; 346 } 347 348 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) 349 { 350 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); 351 size_t ret; 352 353 ret = fprintf(fp, ": "); 354 355 if (cpus) 356 ret += cpu_map__fprintf(cpus, fp); 357 else 358 ret += fprintf(fp, "failed to get cpumap from event\n"); 359 360 perf_cpu_map__put(cpus); 361 return ret; 362 } 363 364 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, 365 union perf_event *event, 366 struct perf_sample *sample, 367 struct machine *machine) 368 { 369 return machine__process_mmap_event(machine, event, sample); 370 } 371 372 int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, 373 union perf_event *event, 374 struct perf_sample *sample, 375 struct machine *machine) 376 { 377 return machine__process_mmap2_event(machine, event, sample); 378 } 379 380 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) 381 { 382 return fprintf(fp, "(%d:%d):(%d:%d)\n", 383 event->fork.pid, event->fork.tid, 384 event->fork.ppid, event->fork.ptid); 385 } 386 387 int perf_event__process_fork(struct perf_tool *tool __maybe_unused, 388 union perf_event *event, 389 struct perf_sample *sample, 390 struct machine *machine) 391 { 392 return machine__process_fork_event(machine, event, sample); 393 } 394 395 int perf_event__process_exit(struct perf_tool *tool __maybe_unused, 396 union perf_event *event, 397 struct perf_sample *sample, 398 struct machine *machine) 399 { 400 return machine__process_exit_event(machine, event, sample); 401 } 402 403 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) 404 { 405 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n", 406 event->aux.aux_offset, event->aux.aux_size, 407 event->aux.flags, 408 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", 409 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "", 410 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : ""); 411 } 412 413 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) 414 { 415 return fprintf(fp, " pid: %u tid: %u\n", 416 event->itrace_start.pid, event->itrace_start.tid); 417 } 418 419 size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp) 420 { 421 return fprintf(fp, " hw_id: %#"PRI_lx64"\n", 422 event->aux_output_hw_id.hw_id); 423 } 424 425 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) 426 { 427 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; 428 const char *in_out = !out ? "IN " : 429 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ? 430 "OUT " : "OUT preempt"; 431 432 if (event->header.type == PERF_RECORD_SWITCH) 433 return fprintf(fp, " %s\n", in_out); 434 435 return fprintf(fp, " %s %s pid/tid: %5d/%-5d\n", 436 in_out, out ? "next" : "prev", 437 event->context_switch.next_prev_pid, 438 event->context_switch.next_prev_tid); 439 } 440 441 static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp) 442 { 443 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost); 444 } 445 446 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp) 447 { 448 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n", 449 event->ksymbol.addr, event->ksymbol.len, 450 event->ksymbol.ksym_type, 451 event->ksymbol.flags, event->ksymbol.name); 452 } 453 454 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp) 455 { 456 return fprintf(fp, " type %u, flags %u, id %u\n", 457 event->bpf.type, event->bpf.flags, event->bpf.id); 458 } 459 460 static int text_poke_printer(enum binary_printer_ops op, unsigned int val, 461 void *extra, FILE *fp) 462 { 463 bool old = *(bool *)extra; 464 465 switch ((int)op) { 466 case BINARY_PRINT_LINE_BEGIN: 467 return fprintf(fp, " %s bytes:", old ? "Old" : "New"); 468 case BINARY_PRINT_NUM_DATA: 469 return fprintf(fp, " %02x", val); 470 case BINARY_PRINT_LINE_END: 471 return fprintf(fp, "\n"); 472 default: 473 return 0; 474 } 475 } 476 477 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp) 478 { 479 struct perf_record_text_poke_event *tp = &event->text_poke; 480 size_t ret; 481 bool old; 482 483 ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr); 484 if (machine) { 485 struct addr_location al; 486 487 al.map = maps__find(&machine->kmaps, tp->addr); 488 if (al.map && map__load(al.map) >= 0) { 489 al.addr = al.map->map_ip(al.map, tp->addr); 490 al.sym = map__find_symbol(al.map, al.addr); 491 if (al.sym) 492 ret += symbol__fprintf_symname_offs(al.sym, &al, fp); 493 } 494 } 495 ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len); 496 old = true; 497 ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer, 498 &old, fp); 499 old = false; 500 ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16, 501 text_poke_printer, &old, fp); 502 return ret; 503 } 504 505 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp) 506 { 507 size_t ret = fprintf(fp, "PERF_RECORD_%s", 508 perf_event__name(event->header.type)); 509 510 switch (event->header.type) { 511 case PERF_RECORD_COMM: 512 ret += perf_event__fprintf_comm(event, fp); 513 break; 514 case PERF_RECORD_FORK: 515 case PERF_RECORD_EXIT: 516 ret += perf_event__fprintf_task(event, fp); 517 break; 518 case PERF_RECORD_MMAP: 519 ret += perf_event__fprintf_mmap(event, fp); 520 break; 521 case PERF_RECORD_NAMESPACES: 522 ret += perf_event__fprintf_namespaces(event, fp); 523 break; 524 case PERF_RECORD_CGROUP: 525 ret += perf_event__fprintf_cgroup(event, fp); 526 break; 527 case PERF_RECORD_MMAP2: 528 ret += perf_event__fprintf_mmap2(event, fp); 529 break; 530 case PERF_RECORD_AUX: 531 ret += perf_event__fprintf_aux(event, fp); 532 break; 533 case PERF_RECORD_ITRACE_START: 534 ret += perf_event__fprintf_itrace_start(event, fp); 535 break; 536 case PERF_RECORD_SWITCH: 537 case PERF_RECORD_SWITCH_CPU_WIDE: 538 ret += perf_event__fprintf_switch(event, fp); 539 break; 540 case PERF_RECORD_LOST: 541 ret += perf_event__fprintf_lost(event, fp); 542 break; 543 case PERF_RECORD_KSYMBOL: 544 ret += perf_event__fprintf_ksymbol(event, fp); 545 break; 546 case PERF_RECORD_BPF_EVENT: 547 ret += perf_event__fprintf_bpf(event, fp); 548 break; 549 case PERF_RECORD_TEXT_POKE: 550 ret += perf_event__fprintf_text_poke(event, machine, fp); 551 break; 552 case PERF_RECORD_AUX_OUTPUT_HW_ID: 553 ret += perf_event__fprintf_aux_output_hw_id(event, fp); 554 break; 555 default: 556 ret += fprintf(fp, "\n"); 557 } 558 559 return ret; 560 } 561 562 int perf_event__process(struct perf_tool *tool __maybe_unused, 563 union perf_event *event, 564 struct perf_sample *sample, 565 struct machine *machine) 566 { 567 return machine__process_event(machine, event, sample); 568 } 569 570 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, 571 struct addr_location *al) 572 { 573 struct maps *maps = thread->maps; 574 struct machine *machine = maps->machine; 575 bool load_map = false; 576 577 al->maps = maps; 578 al->thread = thread; 579 al->addr = addr; 580 al->cpumode = cpumode; 581 al->filtered = 0; 582 583 if (machine == NULL) { 584 al->map = NULL; 585 return NULL; 586 } 587 588 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { 589 al->level = 'k'; 590 al->maps = maps = &machine->kmaps; 591 load_map = true; 592 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { 593 al->level = '.'; 594 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { 595 al->level = 'g'; 596 al->maps = maps = &machine->kmaps; 597 load_map = true; 598 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { 599 al->level = 'u'; 600 } else { 601 al->level = 'H'; 602 al->map = NULL; 603 604 if ((cpumode == PERF_RECORD_MISC_GUEST_USER || 605 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && 606 !perf_guest) 607 al->filtered |= (1 << HIST_FILTER__GUEST); 608 if ((cpumode == PERF_RECORD_MISC_USER || 609 cpumode == PERF_RECORD_MISC_KERNEL) && 610 !perf_host) 611 al->filtered |= (1 << HIST_FILTER__HOST); 612 613 return NULL; 614 } 615 616 al->map = maps__find(maps, al->addr); 617 if (al->map != NULL) { 618 /* 619 * Kernel maps might be changed when loading symbols so loading 620 * must be done prior to using kernel maps. 621 */ 622 if (load_map) 623 map__load(al->map); 624 al->addr = al->map->map_ip(al->map, al->addr); 625 } 626 627 return al->map; 628 } 629 630 /* 631 * For branch stacks or branch samples, the sample cpumode might not be correct 632 * because it applies only to the sample 'ip' and not necessary to 'addr' or 633 * branch stack addresses. If possible, use a fallback to deal with those cases. 634 */ 635 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr, 636 struct addr_location *al) 637 { 638 struct map *map = thread__find_map(thread, cpumode, addr, al); 639 struct machine *machine = thread->maps->machine; 640 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr); 641 642 if (map || addr_cpumode == cpumode) 643 return map; 644 645 return thread__find_map(thread, addr_cpumode, addr, al); 646 } 647 648 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, 649 u64 addr, struct addr_location *al) 650 { 651 al->sym = NULL; 652 if (thread__find_map(thread, cpumode, addr, al)) 653 al->sym = map__find_symbol(al->map, al->addr); 654 return al->sym; 655 } 656 657 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode, 658 u64 addr, struct addr_location *al) 659 { 660 al->sym = NULL; 661 if (thread__find_map_fb(thread, cpumode, addr, al)) 662 al->sym = map__find_symbol(al->map, al->addr); 663 return al->sym; 664 } 665 666 static bool check_address_range(struct intlist *addr_list, int addr_range, 667 unsigned long addr) 668 { 669 struct int_node *pos; 670 671 intlist__for_each_entry(pos, addr_list) { 672 if (addr >= pos->i && addr < pos->i + addr_range) 673 return true; 674 } 675 676 return false; 677 } 678 679 /* 680 * Callers need to drop the reference to al->thread, obtained in 681 * machine__findnew_thread() 682 */ 683 int machine__resolve(struct machine *machine, struct addr_location *al, 684 struct perf_sample *sample) 685 { 686 struct thread *thread = machine__findnew_thread(machine, sample->pid, 687 sample->tid); 688 689 if (thread == NULL) 690 return -1; 691 692 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); 693 thread__find_map(thread, sample->cpumode, sample->ip, al); 694 dump_printf(" ...... dso: %s\n", 695 al->map ? al->map->dso->long_name : 696 al->level == 'H' ? "[hypervisor]" : "<not found>"); 697 698 if (thread__is_filtered(thread)) 699 al->filtered |= (1 << HIST_FILTER__THREAD); 700 701 al->sym = NULL; 702 al->cpu = sample->cpu; 703 al->socket = -1; 704 al->srcline = NULL; 705 706 if (al->cpu >= 0) { 707 struct perf_env *env = machine->env; 708 709 if (env && env->cpu) 710 al->socket = env->cpu[al->cpu].socket_id; 711 } 712 713 if (al->map) { 714 struct dso *dso = al->map->dso; 715 716 if (symbol_conf.dso_list && 717 (!dso || !(strlist__has_entry(symbol_conf.dso_list, 718 dso->short_name) || 719 (dso->short_name != dso->long_name && 720 strlist__has_entry(symbol_conf.dso_list, 721 dso->long_name))))) { 722 al->filtered |= (1 << HIST_FILTER__DSO); 723 } 724 725 al->sym = map__find_symbol(al->map, al->addr); 726 } else if (symbol_conf.dso_list) { 727 al->filtered |= (1 << HIST_FILTER__DSO); 728 } 729 730 if (symbol_conf.sym_list) { 731 int ret = 0; 732 char al_addr_str[32]; 733 size_t sz = sizeof(al_addr_str); 734 735 if (al->sym) { 736 ret = strlist__has_entry(symbol_conf.sym_list, 737 al->sym->name); 738 } 739 if (!ret && al->sym) { 740 snprintf(al_addr_str, sz, "0x%"PRIx64, 741 al->map->unmap_ip(al->map, al->sym->start)); 742 ret = strlist__has_entry(symbol_conf.sym_list, 743 al_addr_str); 744 } 745 if (!ret && symbol_conf.addr_list && al->map) { 746 unsigned long addr = al->map->unmap_ip(al->map, al->addr); 747 748 ret = intlist__has_entry(symbol_conf.addr_list, addr); 749 if (!ret && symbol_conf.addr_range) { 750 ret = check_address_range(symbol_conf.addr_list, 751 symbol_conf.addr_range, 752 addr); 753 } 754 } 755 756 if (!ret) 757 al->filtered |= (1 << HIST_FILTER__SYMBOL); 758 } 759 760 return 0; 761 } 762 763 /* 764 * The preprocess_sample method will return with reference counts for the 765 * in it, when done using (and perhaps getting ref counts if needing to 766 * keep a pointer to one of those entries) it must be paired with 767 * addr_location__put(), so that the refcounts can be decremented. 768 */ 769 void addr_location__put(struct addr_location *al) 770 { 771 thread__zput(al->thread); 772 } 773 774 bool is_bts_event(struct perf_event_attr *attr) 775 { 776 return attr->type == PERF_TYPE_HARDWARE && 777 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && 778 attr->sample_period == 1; 779 } 780 781 bool sample_addr_correlates_sym(struct perf_event_attr *attr) 782 { 783 if (attr->type == PERF_TYPE_SOFTWARE && 784 (attr->config == PERF_COUNT_SW_PAGE_FAULTS || 785 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || 786 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) 787 return true; 788 789 if (is_bts_event(attr)) 790 return true; 791 792 return false; 793 } 794 795 void thread__resolve(struct thread *thread, struct addr_location *al, 796 struct perf_sample *sample) 797 { 798 thread__find_map_fb(thread, sample->cpumode, sample->addr, al); 799 800 al->cpu = sample->cpu; 801 al->sym = NULL; 802 803 if (al->map) 804 al->sym = map__find_symbol(al->map, al->addr); 805 } 806