1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * builtin-annotate.c 4 * 5 * Builtin annotate command: Analyze the perf.data input file, 6 * look up and read DSOs and symbol information and display 7 * a histogram of results, along various sorting keys. 8 */ 9 #include "builtin.h" 10 #include "perf.h" 11 12 #include "util/color.h" 13 #include <linux/list.h> 14 #include "util/cache.h" 15 #include <linux/rbtree.h> 16 #include <linux/zalloc.h> 17 #include "util/symbol.h" 18 19 #include "util/debug.h" 20 21 #include "util/evlist.h" 22 #include "util/evsel.h" 23 #include "util/annotate.h" 24 #include "util/annotate-data.h" 25 #include "util/event.h" 26 #include <subcmd/parse-options.h> 27 #include "util/parse-events.h" 28 #include "util/sort.h" 29 #include "util/hist.h" 30 #include "util/dso.h" 31 #include "util/machine.h" 32 #include "util/map.h" 33 #include "util/session.h" 34 #include "util/tool.h" 35 #include "util/data.h" 36 #include "arch/common.h" 37 #include "util/block-range.h" 38 #include "util/map_symbol.h" 39 #include "util/branch.h" 40 #include "util/util.h" 41 #include "ui/progress.h" 42 43 #include <dlfcn.h> 44 #include <errno.h> 45 #include <linux/bitmap.h> 46 #include <linux/err.h> 47 #include <inttypes.h> 48 49 struct perf_annotate { 50 struct perf_tool tool; 51 struct perf_session *session; 52 #ifdef HAVE_SLANG_SUPPORT 53 bool use_tui; 54 #endif 55 bool use_stdio, use_stdio2; 56 #ifdef HAVE_GTK2_SUPPORT 57 bool use_gtk; 58 #endif 59 bool skip_missing; 60 bool has_br_stack; 61 bool group_set; 62 bool data_type; 63 bool type_stat; 64 bool insn_stat; 65 float min_percent; 66 const char *sym_hist_filter; 67 const char *cpu_list; 68 const char *target_data_type; 69 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 70 }; 71 72 /* 73 * Given one basic block: 74 * 75 * from to branch_i 76 * * ----> * 77 * | 78 * | block 79 * v 80 * * ----> * 81 * from to branch_i+1 82 * 83 * where the horizontal are the branches and the vertical is the executed 84 * block of instructions. 85 * 86 * We count, for each 'instruction', the number of blocks that covered it as 87 * well as count the ratio each branch is taken. 88 * 89 * We can do this without knowing the actual instruction stream by keeping 90 * track of the address ranges. We break down ranges such that there is no 91 * overlap and iterate from the start until the end. 92 * 93 * @acme: once we parse the objdump output _before_ processing the samples, 94 * we can easily fold the branch.cycles IPC bits in. 95 */ 96 static void process_basic_block(struct addr_map_symbol *start, 97 struct addr_map_symbol *end, 98 struct branch_flags *flags) 99 { 100 struct symbol *sym = start->ms.sym; 101 struct annotation *notes = sym ? symbol__annotation(sym) : NULL; 102 struct block_range_iter iter; 103 struct block_range *entry; 104 struct annotated_branch *branch; 105 106 /* 107 * Sanity; NULL isn't executable and the CPU cannot execute backwards 108 */ 109 if (!start->addr || start->addr > end->addr) 110 return; 111 112 iter = block_range__create(start->addr, end->addr); 113 if (!block_range_iter__valid(&iter)) 114 return; 115 116 branch = annotation__get_branch(notes); 117 118 /* 119 * First block in range is a branch target. 120 */ 121 entry = block_range_iter(&iter); 122 assert(entry->is_target); 123 entry->entry++; 124 125 do { 126 entry = block_range_iter(&iter); 127 128 entry->coverage++; 129 entry->sym = sym; 130 131 if (branch) 132 branch->max_coverage = max(branch->max_coverage, entry->coverage); 133 134 } while (block_range_iter__next(&iter)); 135 136 /* 137 * Last block in rage is a branch. 138 */ 139 entry = block_range_iter(&iter); 140 assert(entry->is_branch); 141 entry->taken++; 142 if (flags->predicted) 143 entry->pred++; 144 } 145 146 static void process_branch_stack(struct branch_stack *bs, struct addr_location *al, 147 struct perf_sample *sample) 148 { 149 struct addr_map_symbol *prev = NULL; 150 struct branch_info *bi; 151 int i; 152 153 if (!bs || !bs->nr) 154 return; 155 156 bi = sample__resolve_bstack(sample, al); 157 if (!bi) 158 return; 159 160 for (i = bs->nr - 1; i >= 0; i--) { 161 /* 162 * XXX filter against symbol 163 */ 164 if (prev) 165 process_basic_block(prev, &bi[i].from, &bi[i].flags); 166 prev = &bi[i].to; 167 } 168 169 free(bi); 170 } 171 172 static int hist_iter__branch_callback(struct hist_entry_iter *iter, 173 struct addr_location *al __maybe_unused, 174 bool single __maybe_unused, 175 void *arg __maybe_unused) 176 { 177 struct hist_entry *he = iter->he; 178 struct branch_info *bi; 179 struct perf_sample *sample = iter->sample; 180 struct evsel *evsel = iter->evsel; 181 int err; 182 183 bi = he->branch_info; 184 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel); 185 186 if (err) 187 goto out; 188 189 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel); 190 191 out: 192 return err; 193 } 194 195 static int process_branch_callback(struct evsel *evsel, 196 struct perf_sample *sample, 197 struct addr_location *al, 198 struct perf_annotate *ann, 199 struct machine *machine) 200 { 201 struct hist_entry_iter iter = { 202 .evsel = evsel, 203 .sample = sample, 204 .add_entry_cb = hist_iter__branch_callback, 205 .hide_unresolved = symbol_conf.hide_unresolved, 206 .ops = &hist_iter_branch, 207 }; 208 struct addr_location a; 209 int ret; 210 211 addr_location__init(&a); 212 if (machine__resolve(machine, &a, sample) < 0) { 213 ret = -1; 214 goto out; 215 } 216 217 if (a.sym == NULL) { 218 ret = 0; 219 goto out; 220 } 221 222 if (a.map != NULL) 223 dso__set_hit(map__dso(a.map)); 224 225 hist__account_cycles(sample->branch_stack, al, sample, false, 226 NULL, evsel); 227 228 ret = hist_entry_iter__add(&iter, &a, PERF_MAX_STACK_DEPTH, ann); 229 out: 230 addr_location__exit(&a); 231 return ret; 232 } 233 234 static bool has_annotation(struct perf_annotate *ann) 235 { 236 return ui__has_annotation() || ann->use_stdio2; 237 } 238 239 static int evsel__add_sample(struct evsel *evsel, struct perf_sample *sample, 240 struct addr_location *al, struct perf_annotate *ann, 241 struct machine *machine) 242 { 243 struct hists *hists = evsel__hists(evsel); 244 struct hist_entry *he; 245 int ret; 246 247 if ((!ann->has_br_stack || !has_annotation(ann)) && 248 ann->sym_hist_filter != NULL && 249 (al->sym == NULL || 250 strcmp(ann->sym_hist_filter, al->sym->name) != 0)) { 251 /* We're only interested in a symbol named sym_hist_filter */ 252 /* 253 * FIXME: why isn't this done in the symbol_filter when loading 254 * the DSO? 255 */ 256 if (al->sym != NULL) { 257 struct dso *dso = map__dso(al->map); 258 259 rb_erase_cached(&al->sym->rb_node, dso__symbols(dso)); 260 symbol__delete(al->sym); 261 dso__reset_find_symbol_cache(dso); 262 } 263 return 0; 264 } 265 266 /* 267 * XXX filtered samples can still have branch entries pointing into our 268 * symbol and are missed. 269 */ 270 process_branch_stack(sample->branch_stack, al, sample); 271 272 if (ann->has_br_stack && has_annotation(ann)) 273 return process_branch_callback(evsel, sample, al, ann, machine); 274 275 he = hists__add_entry(hists, al, NULL, NULL, NULL, NULL, sample, true); 276 if (he == NULL) 277 return -ENOMEM; 278 279 ret = hist_entry__inc_addr_samples(he, sample, evsel, al->addr); 280 hists__inc_nr_samples(hists, true); 281 return ret; 282 } 283 284 static int process_sample_event(const struct perf_tool *tool, 285 union perf_event *event, 286 struct perf_sample *sample, 287 struct evsel *evsel, 288 struct machine *machine) 289 { 290 struct perf_annotate *ann = container_of(tool, struct perf_annotate, tool); 291 struct addr_location al; 292 int ret = 0; 293 294 addr_location__init(&al); 295 if (machine__resolve(machine, &al, sample) < 0) { 296 pr_warning("problem processing %d event, skipping it.\n", 297 event->header.type); 298 ret = -1; 299 goto out_put; 300 } 301 302 if (ann->cpu_list && !test_bit(sample->cpu, ann->cpu_bitmap)) 303 goto out_put; 304 305 if (!al.filtered && 306 evsel__add_sample(evsel, sample, &al, ann, machine)) { 307 pr_warning("problem incrementing symbol count, " 308 "skipping event\n"); 309 ret = -1; 310 } 311 out_put: 312 addr_location__exit(&al); 313 return ret; 314 } 315 316 static int process_feature_event(struct perf_session *session, 317 union perf_event *event) 318 { 319 if (event->feat.feat_id < HEADER_LAST_FEATURE) 320 return perf_event__process_feature(session, event); 321 return 0; 322 } 323 324 static int hist_entry__tty_annotate(struct hist_entry *he, 325 struct evsel *evsel, 326 struct perf_annotate *ann) 327 { 328 if (!ann->use_stdio2) 329 return symbol__tty_annotate(&he->ms, evsel); 330 331 return symbol__tty_annotate2(&he->ms, evsel); 332 } 333 334 static void print_annotate_data_stat(struct annotated_data_stat *s) 335 { 336 #define PRINT_STAT(fld) if (s->fld) printf("%10d : %s\n", s->fld, #fld) 337 338 int bad = s->no_sym + 339 s->no_insn + 340 s->no_insn_ops + 341 s->no_mem_ops + 342 s->no_reg + 343 s->no_dbginfo + 344 s->no_cuinfo + 345 s->no_var + 346 s->no_typeinfo + 347 s->invalid_size + 348 s->bad_offset; 349 int ok = s->total - bad; 350 351 printf("Annotate data type stats:\n"); 352 printf("total %d, ok %d (%.1f%%), bad %d (%.1f%%)\n", 353 s->total, ok, 100.0 * ok / (s->total ?: 1), bad, 100.0 * bad / (s->total ?: 1)); 354 printf("-----------------------------------------------------------\n"); 355 PRINT_STAT(no_sym); 356 PRINT_STAT(no_insn); 357 PRINT_STAT(no_insn_ops); 358 PRINT_STAT(no_mem_ops); 359 PRINT_STAT(no_reg); 360 PRINT_STAT(no_dbginfo); 361 PRINT_STAT(no_cuinfo); 362 PRINT_STAT(no_var); 363 PRINT_STAT(no_typeinfo); 364 PRINT_STAT(invalid_size); 365 PRINT_STAT(bad_offset); 366 PRINT_STAT(insn_track); 367 printf("\n"); 368 369 #undef PRINT_STAT 370 } 371 372 static void print_annotate_item_stat(struct list_head *head, const char *title) 373 { 374 struct annotated_item_stat *istat, *pos, *iter; 375 int total_good, total_bad, total; 376 int sum1, sum2; 377 LIST_HEAD(tmp); 378 379 /* sort the list by count */ 380 list_splice_init(head, &tmp); 381 total_good = total_bad = 0; 382 383 list_for_each_entry_safe(istat, pos, &tmp, list) { 384 total_good += istat->good; 385 total_bad += istat->bad; 386 sum1 = istat->good + istat->bad; 387 388 list_for_each_entry(iter, head, list) { 389 sum2 = iter->good + iter->bad; 390 if (sum1 > sum2) 391 break; 392 } 393 list_move_tail(&istat->list, &iter->list); 394 } 395 total = total_good + total_bad; 396 397 printf("Annotate %s stats\n", title); 398 printf("total %d, ok %d (%.1f%%), bad %d (%.1f%%)\n\n", total, 399 total_good, 100.0 * total_good / (total ?: 1), 400 total_bad, 100.0 * total_bad / (total ?: 1)); 401 printf(" %-20s: %5s %5s\n", "Name/opcode", "Good", "Bad"); 402 printf("-----------------------------------------------------------\n"); 403 list_for_each_entry(istat, head, list) 404 printf(" %-20s: %5d %5d\n", istat->name, istat->good, istat->bad); 405 printf("\n"); 406 } 407 408 static void hists__find_annotations(struct hists *hists, 409 struct evsel *evsel, 410 struct perf_annotate *ann) 411 { 412 struct rb_node *nd = rb_first_cached(&hists->entries), *next; 413 int key = K_RIGHT; 414 415 if (ann->type_stat) 416 print_annotate_data_stat(&ann_data_stat); 417 if (ann->insn_stat) 418 print_annotate_item_stat(&ann_insn_stat, "Instruction"); 419 420 while (nd) { 421 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); 422 struct annotation *notes; 423 424 if (he->ms.sym == NULL || dso__annotate_warned(map__dso(he->ms.map))) 425 goto find_next; 426 427 if (ann->sym_hist_filter && 428 (strcmp(he->ms.sym->name, ann->sym_hist_filter) != 0)) 429 goto find_next; 430 431 if (ann->min_percent) { 432 float percent = 0; 433 u64 total = hists__total_period(hists); 434 435 if (total) 436 percent = 100.0 * he->stat.period / total; 437 438 if (percent < ann->min_percent) 439 goto find_next; 440 } 441 442 notes = symbol__annotation(he->ms.sym); 443 if (notes->src == NULL) { 444 find_next: 445 if (key == K_LEFT || key == '<') 446 nd = rb_prev(nd); 447 else 448 nd = rb_next(nd); 449 continue; 450 } 451 452 if (ann->data_type) { 453 /* skip unknown type */ 454 if (he->mem_type->histograms == NULL) 455 goto find_next; 456 457 if (ann->target_data_type) { 458 const char *type_name = he->mem_type->self.type_name; 459 460 /* skip 'struct ' prefix in the type name */ 461 if (strncmp(ann->target_data_type, "struct ", 7) && 462 !strncmp(type_name, "struct ", 7)) 463 type_name += 7; 464 465 /* skip 'union ' prefix in the type name */ 466 if (strncmp(ann->target_data_type, "union ", 6) && 467 !strncmp(type_name, "union ", 6)) 468 type_name += 6; 469 470 if (strcmp(ann->target_data_type, type_name)) 471 goto find_next; 472 } 473 474 if (use_browser == 1) 475 key = hist_entry__annotate_data_tui(he, evsel, NULL); 476 else 477 key = hist_entry__annotate_data_tty(he, evsel); 478 479 switch (key) { 480 case -1: 481 if (!ann->skip_missing) 482 return; 483 /* fall through */ 484 case K_RIGHT: 485 case '>': 486 next = rb_next(nd); 487 break; 488 case K_LEFT: 489 case '<': 490 next = rb_prev(nd); 491 break; 492 default: 493 return; 494 } 495 496 if (use_browser == 0 || next != NULL) 497 nd = next; 498 499 continue; 500 } 501 502 if (use_browser == 2) { 503 int ret; 504 int (*annotate)(struct hist_entry *he, 505 struct evsel *evsel, 506 struct hist_browser_timer *hbt); 507 508 annotate = dlsym(perf_gtk_handle, 509 "hist_entry__gtk_annotate"); 510 if (annotate == NULL) { 511 ui__error("GTK browser not found!\n"); 512 return; 513 } 514 515 ret = annotate(he, evsel, NULL); 516 if (!ret || !ann->skip_missing) 517 return; 518 519 /* skip missing symbols */ 520 nd = rb_next(nd); 521 } else if (use_browser == 1) { 522 key = hist_entry__tui_annotate(he, evsel, NULL); 523 524 switch (key) { 525 case -1: 526 if (!ann->skip_missing) 527 return; 528 /* fall through */ 529 case K_RIGHT: 530 case '>': 531 next = rb_next(nd); 532 break; 533 case K_LEFT: 534 case '<': 535 next = rb_prev(nd); 536 break; 537 default: 538 return; 539 } 540 541 if (next != NULL) 542 nd = next; 543 } else { 544 hist_entry__tty_annotate(he, evsel, ann); 545 nd = rb_next(nd); 546 } 547 } 548 } 549 550 static int __cmd_annotate(struct perf_annotate *ann) 551 { 552 int ret; 553 struct perf_session *session = ann->session; 554 struct evsel *pos; 555 u64 total_nr_samples; 556 557 if (ann->cpu_list) { 558 ret = perf_session__cpu_bitmap(session, ann->cpu_list, 559 ann->cpu_bitmap); 560 if (ret) 561 goto out; 562 } 563 564 if (!annotate_opts.objdump_path) { 565 ret = perf_env__lookup_objdump(&session->header.env, 566 &annotate_opts.objdump_path); 567 if (ret) 568 goto out; 569 } 570 571 ret = perf_session__process_events(session); 572 if (ret) 573 goto out; 574 575 if (dump_trace) { 576 perf_session__fprintf_nr_events(session, stdout); 577 evlist__fprintf_nr_events(session->evlist, stdout); 578 goto out; 579 } 580 581 if (verbose > 3) 582 perf_session__fprintf(session, stdout); 583 584 if (verbose > 2) 585 perf_session__fprintf_dsos(session, stdout); 586 587 total_nr_samples = 0; 588 evlist__for_each_entry(session->evlist, pos) { 589 struct hists *hists = evsel__hists(pos); 590 u32 nr_samples = hists->stats.nr_samples; 591 struct ui_progress prog; 592 593 if (nr_samples > 0) { 594 total_nr_samples += nr_samples; 595 596 ui_progress__init(&prog, nr_samples, 597 "Merging related events..."); 598 hists__collapse_resort(hists, &prog); 599 ui_progress__finish(); 600 601 /* Don't sort callchain */ 602 evsel__reset_sample_bit(pos, CALLCHAIN); 603 604 ui_progress__init(&prog, nr_samples, 605 "Sorting events for output..."); 606 evsel__output_resort(pos, &prog); 607 ui_progress__finish(); 608 609 /* 610 * An event group needs to display other events too. 611 * Let's delay printing until other events are processed. 612 */ 613 if (symbol_conf.event_group) { 614 if (!evsel__is_group_leader(pos)) { 615 struct hists *leader_hists; 616 617 leader_hists = evsel__hists(evsel__leader(pos)); 618 hists__match(leader_hists, hists); 619 hists__link(leader_hists, hists); 620 } 621 continue; 622 } 623 624 hists__find_annotations(hists, pos, ann); 625 } 626 } 627 628 if (total_nr_samples == 0) { 629 ui__error("The %s data has no samples!\n", session->data->path); 630 goto out; 631 } 632 633 /* Display group events together */ 634 evlist__for_each_entry(session->evlist, pos) { 635 struct hists *hists = evsel__hists(pos); 636 u32 nr_samples = hists->stats.nr_samples; 637 struct ui_progress prog; 638 struct evsel *evsel; 639 640 if (!symbol_conf.event_group || !evsel__is_group_leader(pos)) 641 continue; 642 643 for_each_group_member(evsel, pos) 644 nr_samples += evsel__hists(evsel)->stats.nr_samples; 645 646 if (nr_samples == 0) 647 continue; 648 649 ui_progress__init(&prog, nr_samples, 650 "Sorting group events for output..."); 651 evsel__output_resort(pos, &prog); 652 ui_progress__finish(); 653 654 hists__find_annotations(hists, pos, ann); 655 } 656 657 if (use_browser == 2) { 658 void (*show_annotations)(void); 659 660 show_annotations = dlsym(perf_gtk_handle, 661 "perf_gtk__show_annotations"); 662 if (show_annotations == NULL) { 663 ui__error("GTK browser not found!\n"); 664 goto out; 665 } 666 show_annotations(); 667 } 668 669 out: 670 return ret; 671 } 672 673 static int parse_percent_limit(const struct option *opt, const char *str, 674 int unset __maybe_unused) 675 { 676 struct perf_annotate *ann = opt->value; 677 double pcnt = strtof(str, NULL); 678 679 ann->min_percent = pcnt; 680 return 0; 681 } 682 683 static int parse_data_type(const struct option *opt, const char *str, int unset) 684 { 685 struct perf_annotate *ann = opt->value; 686 687 ann->data_type = !unset; 688 if (str) 689 ann->target_data_type = strdup(str); 690 691 return 0; 692 } 693 694 static const char * const annotate_usage[] = { 695 "perf annotate [<options>]", 696 NULL 697 }; 698 699 int cmd_annotate(int argc, const char **argv) 700 { 701 struct perf_annotate annotate = {}; 702 struct perf_data data = { 703 .mode = PERF_DATA_MODE_READ, 704 }; 705 struct itrace_synth_opts itrace_synth_opts = { 706 .set = 0, 707 }; 708 const char *disassembler_style = NULL, *objdump_path = NULL, *addr2line_path = NULL; 709 struct option options[] = { 710 OPT_STRING('i', "input", &input_name, "file", 711 "input file name"), 712 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 713 "only consider symbols in these dsos"), 714 OPT_STRING('s', "symbol", &annotate.sym_hist_filter, "symbol", 715 "symbol to annotate"), 716 OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"), 717 OPT_INCR('v', "verbose", &verbose, 718 "be more verbose (show symbol address, etc)"), 719 OPT_BOOLEAN('q', "quiet", &quiet, "do now show any warnings or messages"), 720 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 721 "dump raw trace in ASCII"), 722 #ifdef HAVE_GTK2_SUPPORT 723 OPT_BOOLEAN(0, "gtk", &annotate.use_gtk, "Use the GTK interface"), 724 #endif 725 #ifdef HAVE_SLANG_SUPPORT 726 OPT_BOOLEAN(0, "tui", &annotate.use_tui, "Use the TUI interface"), 727 #endif 728 OPT_BOOLEAN(0, "stdio", &annotate.use_stdio, "Use the stdio interface"), 729 OPT_BOOLEAN(0, "stdio2", &annotate.use_stdio2, "Use the stdio interface"), 730 OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 731 "don't load vmlinux even if found"), 732 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 733 "file", "vmlinux pathname"), 734 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, 735 "load module symbols - WARNING: use only with -k and LIVE kernel"), 736 OPT_BOOLEAN('l', "print-line", &annotate_opts.print_lines, 737 "print matching source lines (may be slow)"), 738 OPT_BOOLEAN('P', "full-paths", &annotate_opts.full_path, 739 "Don't shorten the displayed pathnames"), 740 OPT_BOOLEAN(0, "skip-missing", &annotate.skip_missing, 741 "Skip symbols that cannot be annotated"), 742 OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, 743 &annotate.group_set, 744 "Show event group information together"), 745 OPT_STRING('C', "cpu", &annotate.cpu_list, "cpu", "list of cpus to profile"), 746 OPT_CALLBACK(0, "symfs", NULL, "directory", 747 "Look for files with symbols relative to this directory", 748 symbol__config_symfs), 749 OPT_BOOLEAN(0, "source", &annotate_opts.annotate_src, 750 "Interleave source code with assembly code (default)"), 751 OPT_BOOLEAN(0, "asm-raw", &annotate_opts.show_asm_raw, 752 "Display raw encoding of assembly instructions (default)"), 753 OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 754 "Specify disassembler style (e.g. -M intel for intel syntax)"), 755 OPT_STRING(0, "prefix", &annotate_opts.prefix, "prefix", 756 "Add prefix to source file path names in programs (with --prefix-strip)"), 757 OPT_STRING(0, "prefix-strip", &annotate_opts.prefix_strip, "N", 758 "Strip first N entries of source file path name in programs (with --prefix)"), 759 OPT_STRING(0, "objdump", &objdump_path, "path", 760 "objdump binary to use for disassembly and annotations"), 761 OPT_STRING(0, "addr2line", &addr2line_path, "path", 762 "addr2line binary to use for line numbers"), 763 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, 764 "Enable symbol demangling"), 765 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 766 "Enable kernel symbol demangling"), 767 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 768 "Show a column with the sum of periods"), 769 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 770 "Show a column with the number of samples"), 771 OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode", 772 "'always' (default), 'never' or 'auto' only applicable to --stdio mode", 773 stdio__config_color, "always"), 774 OPT_CALLBACK(0, "percent-type", &annotate_opts, "local-period", 775 "Set percent type local/global-period/hits", 776 annotate_parse_percent_type), 777 OPT_CALLBACK(0, "percent-limit", &annotate, "percent", 778 "Don't show entries under that percent", parse_percent_limit), 779 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", 780 "Instruction Tracing options\n" ITRACE_HELP, 781 itrace_parse_synth_opts), 782 OPT_CALLBACK_OPTARG(0, "data-type", &annotate, NULL, "name", 783 "Show data type annotate for the memory accesses", 784 parse_data_type), 785 OPT_BOOLEAN(0, "type-stat", &annotate.type_stat, 786 "Show stats for the data type annotation"), 787 OPT_BOOLEAN(0, "insn-stat", &annotate.insn_stat, 788 "Show instruction stats for the data type annotation"), 789 OPT_BOOLEAN(0, "skip-empty", &symbol_conf.skip_empty, 790 "Do not display empty (or dummy) events in the output"), 791 OPT_END() 792 }; 793 int ret; 794 795 set_option_flag(options, 0, "show-total-period", PARSE_OPT_EXCLUSIVE); 796 set_option_flag(options, 0, "show-nr-samples", PARSE_OPT_EXCLUSIVE); 797 798 annotation_options__init(); 799 800 ret = hists__init(); 801 if (ret < 0) 802 return ret; 803 804 annotation_config__init(); 805 806 argc = parse_options(argc, argv, options, annotate_usage, 0); 807 if (argc) { 808 /* 809 * Special case: if there's an argument left then assume that 810 * it's a symbol filter: 811 */ 812 if (argc > 1) 813 usage_with_options(annotate_usage, options); 814 815 annotate.sym_hist_filter = argv[0]; 816 } 817 818 if (disassembler_style) { 819 annotate_opts.disassembler_style = strdup(disassembler_style); 820 if (!annotate_opts.disassembler_style) 821 return -ENOMEM; 822 } 823 if (objdump_path) { 824 annotate_opts.objdump_path = strdup(objdump_path); 825 if (!annotate_opts.objdump_path) 826 return -ENOMEM; 827 } 828 if (addr2line_path) { 829 symbol_conf.addr2line_path = strdup(addr2line_path); 830 if (!symbol_conf.addr2line_path) 831 return -ENOMEM; 832 } 833 834 if (annotate_check_args() < 0) 835 return -EINVAL; 836 837 #ifdef HAVE_GTK2_SUPPORT 838 if (symbol_conf.show_nr_samples && annotate.use_gtk) { 839 pr_err("--show-nr-samples is not available in --gtk mode at this time\n"); 840 return ret; 841 } 842 #endif 843 844 #ifndef HAVE_LIBDW_SUPPORT 845 if (annotate.data_type) { 846 pr_err("Error: Data type profiling is disabled due to missing DWARF support\n"); 847 return -ENOTSUP; 848 } 849 #endif 850 851 ret = symbol__validate_sym_arguments(); 852 if (ret) 853 return ret; 854 855 if (quiet) 856 perf_quiet_option(); 857 858 data.path = input_name; 859 860 perf_tool__init(&annotate.tool, /*ordered_events=*/true); 861 annotate.tool.sample = process_sample_event; 862 annotate.tool.mmap = perf_event__process_mmap; 863 annotate.tool.mmap2 = perf_event__process_mmap2; 864 annotate.tool.comm = perf_event__process_comm; 865 annotate.tool.exit = perf_event__process_exit; 866 annotate.tool.fork = perf_event__process_fork; 867 annotate.tool.namespaces = perf_event__process_namespaces; 868 annotate.tool.attr = perf_event__process_attr; 869 annotate.tool.build_id = perf_event__process_build_id; 870 #ifdef HAVE_LIBTRACEEVENT 871 annotate.tool.tracing_data = perf_event__process_tracing_data; 872 #endif 873 annotate.tool.id_index = perf_event__process_id_index; 874 annotate.tool.auxtrace_info = perf_event__process_auxtrace_info; 875 annotate.tool.auxtrace = perf_event__process_auxtrace; 876 annotate.tool.feature = process_feature_event; 877 annotate.tool.ordering_requires_timestamps = true; 878 879 annotate.session = perf_session__new(&data, &annotate.tool); 880 if (IS_ERR(annotate.session)) 881 return PTR_ERR(annotate.session); 882 883 annotate.session->itrace_synth_opts = &itrace_synth_opts; 884 885 annotate.has_br_stack = perf_header__has_feat(&annotate.session->header, 886 HEADER_BRANCH_STACK); 887 888 if (annotate.group_set) 889 evlist__force_leader(annotate.session->evlist); 890 891 ret = symbol__annotation_init(); 892 if (ret < 0) 893 goto out_delete; 894 895 symbol_conf.try_vmlinux_path = true; 896 897 ret = symbol__init(&annotate.session->header.env); 898 if (ret < 0) 899 goto out_delete; 900 901 if (annotate.use_stdio || annotate.use_stdio2) 902 use_browser = 0; 903 #ifdef HAVE_SLANG_SUPPORT 904 else if (annotate.use_tui) 905 use_browser = 1; 906 #endif 907 #ifdef HAVE_GTK2_SUPPORT 908 else if (annotate.use_gtk) 909 use_browser = 2; 910 #endif 911 912 if (annotate.data_type) { 913 annotate_opts.annotate_src = false; 914 symbol_conf.annotate_data_member = true; 915 symbol_conf.annotate_data_sample = true; 916 } 917 918 setup_browser(true); 919 920 /* 921 * Events of different processes may correspond to the same 922 * symbol, we do not care about the processes in annotate, 923 * set sort order to avoid repeated output. 924 */ 925 if (annotate.data_type) 926 sort_order = "dso,type"; 927 else 928 sort_order = "dso,symbol"; 929 930 /* 931 * Set SORT_MODE__BRANCH so that annotate displays IPC/Cycle and 932 * branch counters, if the corresponding branch info is available 933 * in the perf data in the TUI mode. 934 */ 935 if ((use_browser == 1 || annotate.use_stdio2) && annotate.has_br_stack) { 936 sort__mode = SORT_MODE__BRANCH; 937 if (annotate.session->evlist->nr_br_cntr > 0) 938 annotate_opts.show_br_cntr = true; 939 } 940 941 if (setup_sorting(NULL) < 0) 942 usage_with_options(annotate_usage, options); 943 944 ret = __cmd_annotate(&annotate); 945 946 out_delete: 947 /* 948 * Speed up the exit process by only deleting for debug builds. For 949 * large files this can save time. 950 */ 951 #ifndef NDEBUG 952 perf_session__delete(annotate.session); 953 #endif 954 annotation_options__exit(); 955 956 return ret; 957 } 958