1 #include <errno.h> 2 #include <fcntl.h> 3 #include <inttypes.h> 4 #include <linux/compiler.h> 5 #include <linux/kernel.h> 6 #include <linux/types.h> 7 #include <perf/cpumap.h> 8 #include <perf/event.h> 9 #include <stdio.h> 10 #include <sys/types.h> 11 #include <sys/stat.h> 12 #include <unistd.h> 13 #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ 14 #include <linux/perf_event.h> 15 #include "cpumap.h" 16 #include "dso.h" 17 #include "event.h" 18 #include "debug.h" 19 #include "hist.h" 20 #include "machine.h" 21 #include "sort.h" 22 #include "string2.h" 23 #include "strlist.h" 24 #include "thread.h" 25 #include "thread_map.h" 26 #include "time-utils.h" 27 #include <linux/ctype.h> 28 #include "map.h" 29 #include "util/namespaces.h" 30 #include "symbol.h" 31 #include "symbol/kallsyms.h" 32 #include "asm/bug.h" 33 #include "stat.h" 34 #include "session.h" 35 #include "bpf-event.h" 36 #include "print_binary.h" 37 #include "tool.h" 38 #include "util.h" 39 40 static const char *perf_event__names[] = { 41 [0] = "TOTAL", 42 [PERF_RECORD_MMAP] = "MMAP", 43 [PERF_RECORD_MMAP2] = "MMAP2", 44 [PERF_RECORD_LOST] = "LOST", 45 [PERF_RECORD_COMM] = "COMM", 46 [PERF_RECORD_EXIT] = "EXIT", 47 [PERF_RECORD_THROTTLE] = "THROTTLE", 48 [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", 49 [PERF_RECORD_FORK] = "FORK", 50 [PERF_RECORD_READ] = "READ", 51 [PERF_RECORD_SAMPLE] = "SAMPLE", 52 [PERF_RECORD_AUX] = "AUX", 53 [PERF_RECORD_ITRACE_START] = "ITRACE_START", 54 [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES", 55 [PERF_RECORD_SWITCH] = "SWITCH", 56 [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE", 57 [PERF_RECORD_NAMESPACES] = "NAMESPACES", 58 [PERF_RECORD_KSYMBOL] = "KSYMBOL", 59 [PERF_RECORD_BPF_EVENT] = "BPF_EVENT", 60 [PERF_RECORD_CGROUP] = "CGROUP", 61 [PERF_RECORD_TEXT_POKE] = "TEXT_POKE", 62 [PERF_RECORD_AUX_OUTPUT_HW_ID] = "AUX_OUTPUT_HW_ID", 63 [PERF_RECORD_CALLCHAIN_DEFERRED] = "CALLCHAIN_DEFERRED", 64 [PERF_RECORD_HEADER_ATTR] = "ATTR", 65 [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", 66 [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", 67 [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", 68 [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", 69 [PERF_RECORD_ID_INDEX] = "ID_INDEX", 70 [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO", 71 [PERF_RECORD_AUXTRACE] = "AUXTRACE", 72 [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR", 73 [PERF_RECORD_THREAD_MAP] = "THREAD_MAP", 74 [PERF_RECORD_CPU_MAP] = "CPU_MAP", 75 [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG", 76 [PERF_RECORD_STAT] = "STAT", 77 [PERF_RECORD_STAT_ROUND] = "STAT_ROUND", 78 [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE", 79 [PERF_RECORD_TIME_CONV] = "TIME_CONV", 80 [PERF_RECORD_HEADER_FEATURE] = "FEATURE", 81 [PERF_RECORD_COMPRESSED] = "COMPRESSED", 82 [PERF_RECORD_FINISHED_INIT] = "FINISHED_INIT", 83 [PERF_RECORD_COMPRESSED2] = "COMPRESSED2", 84 [PERF_RECORD_BPF_METADATA] = "BPF_METADATA", 85 [PERF_RECORD_SCHEDSTAT_CPU] = "SCHEDSTAT_CPU", 86 [PERF_RECORD_SCHEDSTAT_DOMAIN] = "SCHEDSTAT_DOMAIN", 87 }; 88 89 const char *perf_event__name(unsigned int id) 90 { 91 if (id >= ARRAY_SIZE(perf_event__names)) 92 return "INVALID"; 93 if (!perf_event__names[id]) 94 return "UNKNOWN"; 95 return perf_event__names[id]; 96 } 97 98 struct process_symbol_args { 99 const char *name; 100 u64 start; 101 }; 102 103 static int find_func_symbol_cb(void *arg, const char *name, char type, 104 u64 start) 105 { 106 struct process_symbol_args *args = arg; 107 108 /* 109 * Must be a function or at least an alias, as in PARISC64, where "_text" is 110 * an 'A' to the same address as "_stext". 111 */ 112 if (!(kallsyms__is_function(type) || 113 type == 'A') || strcmp(name, args->name)) 114 return 0; 115 116 args->start = start; 117 return 1; 118 } 119 120 static int find_any_symbol_cb(void *arg, const char *name, 121 char type __maybe_unused, u64 start) 122 { 123 struct process_symbol_args *args = arg; 124 125 if (strcmp(name, args->name)) 126 return 0; 127 128 args->start = start; 129 return 1; 130 } 131 132 int kallsyms__get_function_start(const char *kallsyms_filename, 133 const char *symbol_name, u64 *addr) 134 { 135 struct process_symbol_args args = { .name = symbol_name, }; 136 137 if (kallsyms__parse(kallsyms_filename, &args, find_func_symbol_cb) <= 0) 138 return -1; 139 140 *addr = args.start; 141 return 0; 142 } 143 144 int kallsyms__get_symbol_start(const char *kallsyms_filename, 145 const char *symbol_name, u64 *addr) 146 { 147 struct process_symbol_args args = { .name = symbol_name, }; 148 149 if (kallsyms__parse(kallsyms_filename, &args, find_any_symbol_cb) <= 0) 150 return -1; 151 152 *addr = args.start; 153 return 0; 154 } 155 156 void perf_event__read_stat_config(struct perf_stat_config *config, 157 struct perf_record_stat_config *event) 158 { 159 unsigned i; 160 161 for (i = 0; i < event->nr; i++) { 162 163 switch (event->data[i].tag) { 164 #define CASE(__term, __val) \ 165 case PERF_STAT_CONFIG_TERM__##__term: \ 166 config->__val = event->data[i].val; \ 167 break; 168 169 CASE(AGGR_MODE, aggr_mode) 170 CASE(SCALE, scale) 171 CASE(INTERVAL, interval) 172 CASE(AGGR_LEVEL, aggr_level) 173 #undef CASE 174 default: 175 pr_warning("unknown stat config term %" PRI_lu64 "\n", 176 event->data[i].tag); 177 } 178 } 179 } 180 181 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) 182 { 183 const char *s; 184 185 if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) 186 s = " exec"; 187 else 188 s = ""; 189 190 return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); 191 } 192 193 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp) 194 { 195 size_t ret = 0; 196 struct perf_ns_link_info *ns_link_info; 197 u32 nr_namespaces, idx; 198 199 ns_link_info = event->namespaces.link_info; 200 nr_namespaces = event->namespaces.nr_namespaces; 201 202 ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[", 203 event->namespaces.pid, 204 event->namespaces.tid, 205 nr_namespaces); 206 207 for (idx = 0; idx < nr_namespaces; idx++) { 208 if (idx && (idx % 4 == 0)) 209 ret += fprintf(fp, "\n\t\t "); 210 211 ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx, 212 perf_ns__name(idx), (u64)ns_link_info[idx].dev, 213 (u64)ns_link_info[idx].ino, 214 ((idx + 1) != nr_namespaces) ? ", " : "]\n"); 215 } 216 217 return ret; 218 } 219 220 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp) 221 { 222 return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n", 223 event->cgroup.id, event->cgroup.path); 224 } 225 226 int perf_event__process_comm(const struct perf_tool *tool __maybe_unused, 227 union perf_event *event, 228 struct perf_sample *sample, 229 struct machine *machine) 230 { 231 return machine__process_comm_event(machine, event, sample); 232 } 233 234 int perf_event__process_namespaces(const struct perf_tool *tool __maybe_unused, 235 union perf_event *event, 236 struct perf_sample *sample, 237 struct machine *machine) 238 { 239 return machine__process_namespaces_event(machine, event, sample); 240 } 241 242 int perf_event__process_cgroup(const struct perf_tool *tool __maybe_unused, 243 union perf_event *event, 244 struct perf_sample *sample, 245 struct machine *machine) 246 { 247 return machine__process_cgroup_event(machine, event, sample); 248 } 249 250 int perf_event__process_lost(const struct perf_tool *tool __maybe_unused, 251 union perf_event *event, 252 struct perf_sample *sample, 253 struct machine *machine) 254 { 255 return machine__process_lost_event(machine, event, sample); 256 } 257 258 int perf_event__process_aux(const struct perf_tool *tool __maybe_unused, 259 union perf_event *event, 260 struct perf_sample *sample __maybe_unused, 261 struct machine *machine) 262 { 263 return machine__process_aux_event(machine, event); 264 } 265 266 int perf_event__process_itrace_start(const struct perf_tool *tool __maybe_unused, 267 union perf_event *event, 268 struct perf_sample *sample __maybe_unused, 269 struct machine *machine) 270 { 271 return machine__process_itrace_start_event(machine, event); 272 } 273 274 int perf_event__process_aux_output_hw_id(const struct perf_tool *tool __maybe_unused, 275 union perf_event *event, 276 struct perf_sample *sample __maybe_unused, 277 struct machine *machine) 278 { 279 return machine__process_aux_output_hw_id_event(machine, event); 280 } 281 282 int perf_event__process_lost_samples(const struct perf_tool *tool __maybe_unused, 283 union perf_event *event, 284 struct perf_sample *sample, 285 struct machine *machine) 286 { 287 return machine__process_lost_samples_event(machine, event, sample); 288 } 289 290 int perf_event__process_switch(const struct perf_tool *tool __maybe_unused, 291 union perf_event *event, 292 struct perf_sample *sample __maybe_unused, 293 struct machine *machine) 294 { 295 return machine__process_switch_event(machine, event); 296 } 297 298 int perf_event__process_ksymbol(const struct perf_tool *tool __maybe_unused, 299 union perf_event *event, 300 struct perf_sample *sample __maybe_unused, 301 struct machine *machine) 302 { 303 return machine__process_ksymbol(machine, event, sample); 304 } 305 306 int perf_event__process_bpf(const struct perf_tool *tool __maybe_unused, 307 union perf_event *event, 308 struct perf_sample *sample, 309 struct machine *machine) 310 { 311 return machine__process_bpf(machine, event, sample); 312 } 313 314 int perf_event__process_text_poke(const struct perf_tool *tool __maybe_unused, 315 union perf_event *event, 316 struct perf_sample *sample, 317 struct machine *machine) 318 { 319 return machine__process_text_poke(machine, event, sample); 320 } 321 322 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) 323 { 324 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n", 325 event->mmap.pid, event->mmap.tid, event->mmap.start, 326 event->mmap.len, event->mmap.pgoff, 327 (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', 328 event->mmap.filename); 329 } 330 331 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) 332 { 333 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) { 334 char sbuild_id[SBUILD_ID_SIZE]; 335 struct build_id bid; 336 337 build_id__init(&bid, event->mmap2.build_id, 338 event->mmap2.build_id_size); 339 build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id)); 340 341 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 342 " <%s>]: %c%c%c%c %s\n", 343 event->mmap2.pid, event->mmap2.tid, event->mmap2.start, 344 event->mmap2.len, event->mmap2.pgoff, sbuild_id, 345 (event->mmap2.prot & PROT_READ) ? 'r' : '-', 346 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', 347 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', 348 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', 349 event->mmap2.filename); 350 } else { 351 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 352 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n", 353 event->mmap2.pid, event->mmap2.tid, event->mmap2.start, 354 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, 355 event->mmap2.min, event->mmap2.ino, 356 event->mmap2.ino_generation, 357 (event->mmap2.prot & PROT_READ) ? 'r' : '-', 358 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', 359 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', 360 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', 361 event->mmap2.filename); 362 } 363 } 364 365 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) 366 { 367 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map); 368 size_t ret; 369 370 ret = fprintf(fp, " nr: "); 371 372 if (threads) 373 ret += thread_map__fprintf(threads, fp); 374 else 375 ret += fprintf(fp, "failed to get threads from event\n"); 376 377 perf_thread_map__put(threads); 378 return ret; 379 } 380 381 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) 382 { 383 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); 384 size_t ret; 385 386 ret = fprintf(fp, ": "); 387 388 if (cpus) 389 ret += cpu_map__fprintf(cpus, fp); 390 else 391 ret += fprintf(fp, "failed to get cpumap from event\n"); 392 393 perf_cpu_map__put(cpus); 394 return ret; 395 } 396 397 int perf_event__process_mmap(const struct perf_tool *tool __maybe_unused, 398 union perf_event *event, 399 struct perf_sample *sample, 400 struct machine *machine) 401 { 402 return machine__process_mmap_event(machine, event, sample); 403 } 404 405 int perf_event__process_mmap2(const struct perf_tool *tool __maybe_unused, 406 union perf_event *event, 407 struct perf_sample *sample, 408 struct machine *machine) 409 { 410 return machine__process_mmap2_event(machine, event, sample); 411 } 412 413 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) 414 { 415 return fprintf(fp, "(%d:%d):(%d:%d)\n", 416 event->fork.pid, event->fork.tid, 417 event->fork.ppid, event->fork.ptid); 418 } 419 420 int perf_event__process_fork(const struct perf_tool *tool __maybe_unused, 421 union perf_event *event, 422 struct perf_sample *sample, 423 struct machine *machine) 424 { 425 return machine__process_fork_event(machine, event, sample); 426 } 427 428 int perf_event__process_exit(const struct perf_tool *tool __maybe_unused, 429 union perf_event *event, 430 struct perf_sample *sample, 431 struct machine *machine) 432 { 433 return machine__process_exit_event(machine, event, sample); 434 } 435 436 int perf_event__exit_del_thread(const struct perf_tool *tool __maybe_unused, 437 union perf_event *event, 438 struct perf_sample *sample __maybe_unused, 439 struct machine *machine) 440 { 441 struct thread *thread = machine__findnew_thread(machine, 442 event->fork.pid, 443 event->fork.tid); 444 445 dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid, 446 event->fork.ppid, event->fork.ptid); 447 448 if (thread) { 449 machine__remove_thread(machine, thread); 450 thread__put(thread); 451 } 452 453 return 0; 454 } 455 456 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) 457 { 458 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s%s]\n", 459 event->aux.aux_offset, event->aux.aux_size, 460 event->aux.flags, 461 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", 462 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "", 463 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "", 464 event->aux.flags & PERF_AUX_FLAG_COLLISION ? "C" : ""); 465 } 466 467 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) 468 { 469 return fprintf(fp, " pid: %u tid: %u\n", 470 event->itrace_start.pid, event->itrace_start.tid); 471 } 472 473 size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp) 474 { 475 return fprintf(fp, " hw_id: %#"PRI_lx64"\n", 476 event->aux_output_hw_id.hw_id); 477 } 478 479 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) 480 { 481 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; 482 const char *in_out = !out ? "IN " : 483 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ? 484 "OUT " : "OUT preempt"; 485 486 if (event->header.type == PERF_RECORD_SWITCH) 487 return fprintf(fp, " %s\n", in_out); 488 489 return fprintf(fp, " %s %s pid/tid: %5d/%-5d\n", 490 in_out, out ? "next" : "prev", 491 event->context_switch.next_prev_pid, 492 event->context_switch.next_prev_tid); 493 } 494 495 static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp) 496 { 497 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost); 498 } 499 500 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp) 501 { 502 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n", 503 event->ksymbol.addr, event->ksymbol.len, 504 event->ksymbol.ksym_type, 505 event->ksymbol.flags, event->ksymbol.name); 506 } 507 508 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp) 509 { 510 return fprintf(fp, " type %u, flags %u, id %u\n", 511 event->bpf.type, event->bpf.flags, event->bpf.id); 512 } 513 514 size_t perf_event__fprintf_bpf_metadata(union perf_event *event, FILE *fp) 515 { 516 struct perf_record_bpf_metadata *metadata = &event->bpf_metadata; 517 size_t ret; 518 519 ret = fprintf(fp, " prog %s\n", metadata->prog_name); 520 for (__u32 i = 0; i < metadata->nr_entries; i++) { 521 ret += fprintf(fp, " entry %d: %20s = %s\n", i, 522 metadata->entries[i].key, 523 metadata->entries[i].value); 524 } 525 return ret; 526 } 527 528 static int text_poke_printer(enum binary_printer_ops op, unsigned int val, 529 void *extra, FILE *fp) 530 { 531 bool old = *(bool *)extra; 532 533 switch ((int)op) { 534 case BINARY_PRINT_LINE_BEGIN: 535 return fprintf(fp, " %s bytes:", old ? "Old" : "New"); 536 case BINARY_PRINT_NUM_DATA: 537 return fprintf(fp, " %02x", val); 538 case BINARY_PRINT_LINE_END: 539 return fprintf(fp, "\n"); 540 default: 541 return 0; 542 } 543 } 544 545 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp) 546 { 547 struct perf_record_text_poke_event *tp = &event->text_poke; 548 size_t ret; 549 bool old; 550 551 ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr); 552 if (machine) { 553 struct addr_location al; 554 555 addr_location__init(&al); 556 al.map = maps__find(machine__kernel_maps(machine), tp->addr); 557 if (al.map && map__load(al.map) >= 0) { 558 al.addr = map__map_ip(al.map, tp->addr); 559 al.sym = map__find_symbol(al.map, al.addr); 560 if (al.sym) 561 ret += symbol__fprintf_symname_offs(al.sym, &al, fp); 562 } 563 addr_location__exit(&al); 564 } 565 ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len); 566 old = true; 567 ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer, 568 &old, fp); 569 old = false; 570 ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16, 571 text_poke_printer, &old, fp); 572 return ret; 573 } 574 575 size_t perf_event__fprintf_schedstat_cpu(union perf_event *event, FILE *fp) 576 { 577 struct perf_record_schedstat_cpu *cs = &event->schedstat_cpu; 578 size_t size = fprintf(fp, "\ncpu%u ", cs->cpu); 579 __u16 version = cs->version; 580 581 #define CPU_FIELD(_type, _name, _desc, _format, _is_pct, _pct_of, _ver) \ 582 size += fprintf(fp, "%" PRIu64 " ", (uint64_t)cs->_ver._name) 583 584 if (version == 15) { 585 #include <perf/schedstat-v15.h> 586 return size; 587 } else if (version == 16) { 588 #include <perf/schedstat-v16.h> 589 return size; 590 } else if (version == 17) { 591 #include <perf/schedstat-v17.h> 592 return size; 593 } 594 #undef CPU_FIELD 595 596 return fprintf(fp, "Unsupported /proc/schedstat version %d.\n", 597 event->schedstat_cpu.version); 598 } 599 600 size_t perf_event__fprintf_schedstat_domain(union perf_event *event, FILE *fp) 601 { 602 struct perf_record_schedstat_domain *ds = &event->schedstat_domain; 603 __u16 version = ds->version; 604 size_t size = fprintf(fp, "\ndomain%u ", ds->domain); 605 606 #define DOMAIN_FIELD(_type, _name, _desc, _format, _is_jiffies, _ver) \ 607 size += fprintf(fp, "%" PRIu64 " ", (uint64_t)ds->_ver._name) 608 609 if (version == 15) { 610 #include <perf/schedstat-v15.h> 611 return size; 612 } else if (version == 16) { 613 #include <perf/schedstat-v16.h> 614 return size; 615 } else if (version == 17) { 616 #include <perf/schedstat-v17.h> 617 return size; 618 } 619 #undef DOMAIN_FIELD 620 621 return fprintf(fp, "Unsupported /proc/schedstat version %d.\n", 622 event->schedstat_domain.version); 623 } 624 625 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp) 626 { 627 size_t ret = fprintf(fp, "PERF_RECORD_%s", 628 perf_event__name(event->header.type)); 629 630 switch (event->header.type) { 631 case PERF_RECORD_COMM: 632 ret += perf_event__fprintf_comm(event, fp); 633 break; 634 case PERF_RECORD_FORK: 635 case PERF_RECORD_EXIT: 636 ret += perf_event__fprintf_task(event, fp); 637 break; 638 case PERF_RECORD_MMAP: 639 ret += perf_event__fprintf_mmap(event, fp); 640 break; 641 case PERF_RECORD_NAMESPACES: 642 ret += perf_event__fprintf_namespaces(event, fp); 643 break; 644 case PERF_RECORD_CGROUP: 645 ret += perf_event__fprintf_cgroup(event, fp); 646 break; 647 case PERF_RECORD_MMAP2: 648 ret += perf_event__fprintf_mmap2(event, fp); 649 break; 650 case PERF_RECORD_AUX: 651 ret += perf_event__fprintf_aux(event, fp); 652 break; 653 case PERF_RECORD_ITRACE_START: 654 ret += perf_event__fprintf_itrace_start(event, fp); 655 break; 656 case PERF_RECORD_SWITCH: 657 case PERF_RECORD_SWITCH_CPU_WIDE: 658 ret += perf_event__fprintf_switch(event, fp); 659 break; 660 case PERF_RECORD_LOST: 661 ret += perf_event__fprintf_lost(event, fp); 662 break; 663 case PERF_RECORD_KSYMBOL: 664 ret += perf_event__fprintf_ksymbol(event, fp); 665 break; 666 case PERF_RECORD_BPF_EVENT: 667 ret += perf_event__fprintf_bpf(event, fp); 668 break; 669 case PERF_RECORD_TEXT_POKE: 670 ret += perf_event__fprintf_text_poke(event, machine, fp); 671 break; 672 case PERF_RECORD_AUX_OUTPUT_HW_ID: 673 ret += perf_event__fprintf_aux_output_hw_id(event, fp); 674 break; 675 case PERF_RECORD_BPF_METADATA: 676 ret += perf_event__fprintf_bpf_metadata(event, fp); 677 break; 678 default: 679 ret += fprintf(fp, "\n"); 680 } 681 682 return ret; 683 } 684 685 int perf_event__process(const struct perf_tool *tool __maybe_unused, 686 union perf_event *event, 687 struct perf_sample *sample, 688 struct machine *machine) 689 { 690 return machine__process_event(machine, event, sample); 691 } 692 693 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, 694 struct addr_location *al) 695 { 696 struct maps *maps = thread__maps(thread); 697 struct machine *machine = maps__machine(maps); 698 bool load_map = false; 699 700 map__zput(al->map); 701 thread__zput(al->thread); 702 al->thread = thread__get(thread); 703 704 al->addr = addr; 705 al->cpumode = cpumode; 706 al->filtered = 0; 707 708 if (machine == NULL) 709 return NULL; 710 711 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { 712 al->level = 'k'; 713 maps = machine__kernel_maps(machine); 714 load_map = !symbol_conf.lazy_load_kernel_maps; 715 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { 716 al->level = '.'; 717 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { 718 al->level = 'g'; 719 maps = machine__kernel_maps(machine); 720 load_map = !symbol_conf.lazy_load_kernel_maps; 721 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { 722 al->level = 'u'; 723 } else { 724 al->level = 'H'; 725 726 if ((cpumode == PERF_RECORD_MISC_GUEST_USER || 727 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && 728 !perf_guest) 729 al->filtered |= (1 << HIST_FILTER__GUEST); 730 if ((cpumode == PERF_RECORD_MISC_USER || 731 cpumode == PERF_RECORD_MISC_KERNEL) && 732 !perf_host) 733 al->filtered |= (1 << HIST_FILTER__HOST); 734 735 return NULL; 736 } 737 al->map = maps__find(maps, al->addr); 738 if (al->map != NULL) { 739 /* 740 * Kernel maps might be changed when loading symbols so loading 741 * must be done prior to using kernel maps. 742 */ 743 if (load_map) 744 map__load(al->map); 745 al->addr = map__map_ip(al->map, al->addr); 746 } 747 748 return al->map; 749 } 750 751 /* 752 * For branch stacks or branch samples, the sample cpumode might not be correct 753 * because it applies only to the sample 'ip' and not necessary to 'addr' or 754 * branch stack addresses. If possible, use a fallback to deal with those cases. 755 */ 756 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr, 757 struct addr_location *al) 758 { 759 struct map *map = thread__find_map(thread, cpumode, addr, al); 760 struct machine *machine = maps__machine(thread__maps(thread)); 761 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr); 762 763 if (map || addr_cpumode == cpumode) 764 return map; 765 766 return thread__find_map(thread, addr_cpumode, addr, al); 767 } 768 769 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, 770 u64 addr, struct addr_location *al) 771 { 772 al->sym = NULL; 773 if (thread__find_map(thread, cpumode, addr, al)) 774 al->sym = map__find_symbol(al->map, al->addr); 775 return al->sym; 776 } 777 778 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode, 779 u64 addr, struct addr_location *al) 780 { 781 al->sym = NULL; 782 if (thread__find_map_fb(thread, cpumode, addr, al)) 783 al->sym = map__find_symbol(al->map, al->addr); 784 return al->sym; 785 } 786 787 static bool check_address_range(struct intlist *addr_list, int addr_range, 788 unsigned long addr) 789 { 790 struct int_node *pos; 791 792 intlist__for_each_entry(pos, addr_list) { 793 if (addr >= pos->i && addr < pos->i + addr_range) 794 return true; 795 } 796 797 return false; 798 } 799 800 /* 801 * Callers need to drop the reference to al->thread, obtained in 802 * machine__findnew_thread() 803 */ 804 int machine__resolve(struct machine *machine, struct addr_location *al, 805 struct perf_sample *sample) 806 { 807 struct thread *thread; 808 struct dso *dso; 809 810 if (symbol_conf.guest_code && !machine__is_host(machine)) 811 thread = machine__findnew_guest_code(machine, sample->pid); 812 else 813 thread = machine__findnew_thread(machine, sample->pid, sample->tid); 814 if (thread == NULL) 815 return -1; 816 817 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread__tid(thread)); 818 thread__find_map(thread, sample->cpumode, sample->ip, al); 819 dso = al->map ? map__dso(al->map) : NULL; 820 dump_printf(" ...... dso: %s\n", 821 dso 822 ? dso__long_name(dso) 823 : (al->level == 'H' ? "[hypervisor]" : "<not found>")); 824 825 if (thread__is_filtered(thread)) 826 al->filtered |= (1 << HIST_FILTER__THREAD); 827 828 thread__put(thread); 829 thread = NULL; 830 831 al->sym = NULL; 832 al->cpu = sample->cpu; 833 al->socket = -1; 834 al->srcline = NULL; 835 836 if (al->cpu >= 0) { 837 struct perf_env *env = machine->env; 838 839 if (env && env->cpu) 840 al->socket = env->cpu[al->cpu].socket_id; 841 } 842 843 /* Account for possible out-of-order switch events. */ 844 al->parallelism = max(1, min(machine->parallelism, machine__nr_cpus_avail(machine))); 845 if (test_bit(al->parallelism, symbol_conf.parallelism_filter)) 846 al->filtered |= (1 << HIST_FILTER__PARALLELISM); 847 /* 848 * Multiply it by some const to avoid precision loss or dealing 849 * with floats. The multiplier does not matter otherwise since 850 * we only print it as percents. 851 */ 852 al->latency = sample->period * 1000 / al->parallelism; 853 854 if (al->map) { 855 if (symbol_conf.dso_list && 856 (!dso || !(strlist__has_entry(symbol_conf.dso_list, 857 dso__short_name(dso)) || 858 (dso__short_name(dso) != dso__long_name(dso) && 859 strlist__has_entry(symbol_conf.dso_list, 860 dso__long_name(dso)))))) { 861 al->filtered |= (1 << HIST_FILTER__DSO); 862 } 863 864 al->sym = map__find_symbol(al->map, al->addr); 865 } else if (symbol_conf.dso_list) { 866 al->filtered |= (1 << HIST_FILTER__DSO); 867 } 868 869 if (symbol_conf.sym_list) { 870 int ret = 0; 871 char al_addr_str[32]; 872 size_t sz = sizeof(al_addr_str); 873 874 if (al->sym) { 875 ret = strlist__has_entry(symbol_conf.sym_list, 876 al->sym->name); 877 } 878 if (!ret && al->sym) { 879 snprintf(al_addr_str, sz, "0x%"PRIx64, 880 map__unmap_ip(al->map, al->sym->start)); 881 ret = strlist__has_entry(symbol_conf.sym_list, 882 al_addr_str); 883 } 884 if (!ret && symbol_conf.addr_list && al->map) { 885 unsigned long addr = map__unmap_ip(al->map, al->addr); 886 887 ret = intlist__has_entry(symbol_conf.addr_list, addr); 888 if (!ret && symbol_conf.addr_range) { 889 ret = check_address_range(symbol_conf.addr_list, 890 symbol_conf.addr_range, 891 addr); 892 } 893 } 894 895 if (!ret) 896 al->filtered |= (1 << HIST_FILTER__SYMBOL); 897 } 898 899 return 0; 900 } 901 902 bool is_bts_event(struct perf_event_attr *attr) 903 { 904 return attr->type == PERF_TYPE_HARDWARE && 905 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && 906 attr->sample_period == 1; 907 } 908 909 bool sample_addr_correlates_sym(struct perf_event_attr *attr) 910 { 911 if (attr->type == PERF_TYPE_SOFTWARE && 912 (attr->config == PERF_COUNT_SW_PAGE_FAULTS || 913 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || 914 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) 915 return true; 916 917 if (is_bts_event(attr)) 918 return true; 919 920 return false; 921 } 922 923 void thread__resolve(struct thread *thread, struct addr_location *al, 924 struct perf_sample *sample) 925 { 926 thread__find_map_fb(thread, sample->cpumode, sample->addr, al); 927 928 al->cpu = sample->cpu; 929 al->sym = NULL; 930 931 if (al->map) 932 al->sym = map__find_symbol(al->map, al->addr); 933 } 934