| 1 | /* |
| 2 | * builtin-report.c |
| 3 | * |
| 4 | * Builtin report command: Analyze the perf.data input file, |
| 5 | * look up and read DSOs and symbol information and display |
| 6 | * a histogram of results, along various sorting keys. |
| 7 | */ |
| 8 | #include "builtin.h" |
| 9 | |
| 10 | #include "util/util.h" |
| 11 | #include "util/cache.h" |
| 12 | |
| 13 | #include "util/annotate.h" |
| 14 | #include "util/color.h" |
| 15 | #include <linux/list.h> |
| 16 | #include <linux/rbtree.h> |
| 17 | #include "util/symbol.h" |
| 18 | #include "util/callchain.h" |
| 19 | #include "util/strlist.h" |
| 20 | #include "util/values.h" |
| 21 | |
| 22 | #include "perf.h" |
| 23 | #include "util/debug.h" |
| 24 | #include "util/evlist.h" |
| 25 | #include "util/evsel.h" |
| 26 | #include "util/header.h" |
| 27 | #include "util/session.h" |
| 28 | #include "util/tool.h" |
| 29 | |
| 30 | #include "util/parse-options.h" |
| 31 | #include "util/parse-events.h" |
| 32 | |
| 33 | #include "util/thread.h" |
| 34 | #include "util/sort.h" |
| 35 | #include "util/hist.h" |
| 36 | #include "arch/common.h" |
| 37 | |
| 38 | #include <linux/bitmap.h> |
| 39 | |
| 40 | struct perf_report { |
| 41 | struct perf_tool tool; |
| 42 | struct perf_session *session; |
| 43 | bool force, use_tui, use_gtk, use_stdio; |
| 44 | bool hide_unresolved; |
| 45 | bool dont_use_callchains; |
| 46 | bool show_full_info; |
| 47 | bool show_threads; |
| 48 | bool inverted_callchain; |
| 49 | bool mem_mode; |
| 50 | struct perf_read_values show_threads_values; |
| 51 | const char *pretty_printing_style; |
| 52 | symbol_filter_t annotate_init; |
| 53 | const char *cpu_list; |
| 54 | const char *symbol_filter_str; |
| 55 | DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); |
| 56 | }; |
| 57 | |
| 58 | static int perf_report_config(const char *var, const char *value, void *cb) |
| 59 | { |
| 60 | if (!strcmp(var, "report.group")) { |
| 61 | symbol_conf.event_group = perf_config_bool(var, value); |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | return perf_default_config(var, value, cb); |
| 66 | } |
| 67 | |
| 68 | static int perf_report__add_mem_hist_entry(struct perf_tool *tool, |
| 69 | struct addr_location *al, |
| 70 | struct perf_sample *sample, |
| 71 | struct perf_evsel *evsel, |
| 72 | struct machine *machine, |
| 73 | union perf_event *event) |
| 74 | { |
| 75 | struct perf_report *rep = container_of(tool, struct perf_report, tool); |
| 76 | struct symbol *parent = NULL; |
| 77 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| 78 | int err = 0; |
| 79 | struct hist_entry *he; |
| 80 | struct mem_info *mi, *mx; |
| 81 | uint64_t cost; |
| 82 | |
| 83 | if ((sort__has_parent || symbol_conf.use_callchain) && |
| 84 | sample->callchain) { |
| 85 | err = machine__resolve_callchain(machine, evsel, al->thread, |
| 86 | sample, &parent); |
| 87 | if (err) |
| 88 | return err; |
| 89 | } |
| 90 | |
| 91 | mi = machine__resolve_mem(machine, al->thread, sample, cpumode); |
| 92 | if (!mi) |
| 93 | return -ENOMEM; |
| 94 | |
| 95 | if (rep->hide_unresolved && !al->sym) |
| 96 | return 0; |
| 97 | |
| 98 | cost = sample->weight; |
| 99 | if (!cost) |
| 100 | cost = 1; |
| 101 | |
| 102 | /* |
| 103 | * must pass period=weight in order to get the correct |
| 104 | * sorting from hists__collapse_resort() which is solely |
| 105 | * based on periods. We want sorting be done on nr_events * weight |
| 106 | * and this is indirectly achieved by passing period=weight here |
| 107 | * and the he_stat__add_period() function. |
| 108 | */ |
| 109 | he = __hists__add_mem_entry(&evsel->hists, al, parent, mi, cost, cost); |
| 110 | if (!he) |
| 111 | return -ENOMEM; |
| 112 | |
| 113 | /* |
| 114 | * In the TUI browser, we are doing integrated annotation, |
| 115 | * so we don't allocate the extra space needed because the stdio |
| 116 | * code will not use it. |
| 117 | */ |
| 118 | if (sort__has_sym && he->ms.sym && use_browser > 0) { |
| 119 | struct annotation *notes = symbol__annotation(he->ms.sym); |
| 120 | |
| 121 | assert(evsel != NULL); |
| 122 | |
| 123 | if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0) |
| 124 | goto out; |
| 125 | |
| 126 | err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); |
| 127 | if (err) |
| 128 | goto out; |
| 129 | } |
| 130 | |
| 131 | if (sort__has_sym && he->mem_info->daddr.sym && use_browser > 0) { |
| 132 | struct annotation *notes; |
| 133 | |
| 134 | mx = he->mem_info; |
| 135 | |
| 136 | notes = symbol__annotation(mx->daddr.sym); |
| 137 | if (notes->src == NULL && symbol__alloc_hist(mx->daddr.sym) < 0) |
| 138 | goto out; |
| 139 | |
| 140 | err = symbol__inc_addr_samples(mx->daddr.sym, |
| 141 | mx->daddr.map, |
| 142 | evsel->idx, |
| 143 | mx->daddr.al_addr); |
| 144 | if (err) |
| 145 | goto out; |
| 146 | } |
| 147 | |
| 148 | evsel->hists.stats.total_period += cost; |
| 149 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
| 150 | err = 0; |
| 151 | |
| 152 | if (symbol_conf.use_callchain) { |
| 153 | err = callchain_append(he->callchain, |
| 154 | &callchain_cursor, |
| 155 | sample->period); |
| 156 | } |
| 157 | out: |
| 158 | return err; |
| 159 | } |
| 160 | |
| 161 | static int perf_report__add_branch_hist_entry(struct perf_tool *tool, |
| 162 | struct addr_location *al, |
| 163 | struct perf_sample *sample, |
| 164 | struct perf_evsel *evsel, |
| 165 | struct machine *machine) |
| 166 | { |
| 167 | struct perf_report *rep = container_of(tool, struct perf_report, tool); |
| 168 | struct symbol *parent = NULL; |
| 169 | int err = 0; |
| 170 | unsigned i; |
| 171 | struct hist_entry *he; |
| 172 | struct branch_info *bi, *bx; |
| 173 | |
| 174 | if ((sort__has_parent || symbol_conf.use_callchain) |
| 175 | && sample->callchain) { |
| 176 | err = machine__resolve_callchain(machine, evsel, al->thread, |
| 177 | sample, &parent); |
| 178 | if (err) |
| 179 | return err; |
| 180 | } |
| 181 | |
| 182 | bi = machine__resolve_bstack(machine, al->thread, |
| 183 | sample->branch_stack); |
| 184 | if (!bi) |
| 185 | return -ENOMEM; |
| 186 | |
| 187 | for (i = 0; i < sample->branch_stack->nr; i++) { |
| 188 | if (rep->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym)) |
| 189 | continue; |
| 190 | /* |
| 191 | * The report shows the percentage of total branches captured |
| 192 | * and not events sampled. Thus we use a pseudo period of 1. |
| 193 | */ |
| 194 | he = __hists__add_branch_entry(&evsel->hists, al, parent, |
| 195 | &bi[i], 1, 1); |
| 196 | if (he) { |
| 197 | struct annotation *notes; |
| 198 | err = -ENOMEM; |
| 199 | bx = he->branch_info; |
| 200 | if (bx->from.sym && use_browser == 1 && sort__has_sym) { |
| 201 | notes = symbol__annotation(bx->from.sym); |
| 202 | if (!notes->src |
| 203 | && symbol__alloc_hist(bx->from.sym) < 0) |
| 204 | goto out; |
| 205 | |
| 206 | err = symbol__inc_addr_samples(bx->from.sym, |
| 207 | bx->from.map, |
| 208 | evsel->idx, |
| 209 | bx->from.al_addr); |
| 210 | if (err) |
| 211 | goto out; |
| 212 | } |
| 213 | |
| 214 | if (bx->to.sym && use_browser == 1 && sort__has_sym) { |
| 215 | notes = symbol__annotation(bx->to.sym); |
| 216 | if (!notes->src |
| 217 | && symbol__alloc_hist(bx->to.sym) < 0) |
| 218 | goto out; |
| 219 | |
| 220 | err = symbol__inc_addr_samples(bx->to.sym, |
| 221 | bx->to.map, |
| 222 | evsel->idx, |
| 223 | bx->to.al_addr); |
| 224 | if (err) |
| 225 | goto out; |
| 226 | } |
| 227 | evsel->hists.stats.total_period += 1; |
| 228 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
| 229 | err = 0; |
| 230 | } else |
| 231 | return -ENOMEM; |
| 232 | } |
| 233 | out: |
| 234 | return err; |
| 235 | } |
| 236 | |
| 237 | static int perf_evsel__add_hist_entry(struct perf_evsel *evsel, |
| 238 | struct addr_location *al, |
| 239 | struct perf_sample *sample, |
| 240 | struct machine *machine) |
| 241 | { |
| 242 | struct symbol *parent = NULL; |
| 243 | int err = 0; |
| 244 | struct hist_entry *he; |
| 245 | |
| 246 | if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) { |
| 247 | err = machine__resolve_callchain(machine, evsel, al->thread, |
| 248 | sample, &parent); |
| 249 | if (err) |
| 250 | return err; |
| 251 | } |
| 252 | |
| 253 | he = __hists__add_entry(&evsel->hists, al, parent, sample->period, |
| 254 | sample->weight); |
| 255 | if (he == NULL) |
| 256 | return -ENOMEM; |
| 257 | |
| 258 | if (symbol_conf.use_callchain) { |
| 259 | err = callchain_append(he->callchain, |
| 260 | &callchain_cursor, |
| 261 | sample->period); |
| 262 | if (err) |
| 263 | return err; |
| 264 | } |
| 265 | /* |
| 266 | * Only in the TUI browser we are doing integrated annotation, |
| 267 | * so we don't allocated the extra space needed because the stdio |
| 268 | * code will not use it. |
| 269 | */ |
| 270 | if (he->ms.sym != NULL && use_browser == 1 && sort__has_sym) { |
| 271 | struct annotation *notes = symbol__annotation(he->ms.sym); |
| 272 | |
| 273 | assert(evsel != NULL); |
| 274 | |
| 275 | err = -ENOMEM; |
| 276 | if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0) |
| 277 | goto out; |
| 278 | |
| 279 | err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); |
| 280 | } |
| 281 | |
| 282 | evsel->hists.stats.total_period += sample->period; |
| 283 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
| 284 | out: |
| 285 | return err; |
| 286 | } |
| 287 | |
| 288 | |
| 289 | static int process_sample_event(struct perf_tool *tool, |
| 290 | union perf_event *event, |
| 291 | struct perf_sample *sample, |
| 292 | struct perf_evsel *evsel, |
| 293 | struct machine *machine) |
| 294 | { |
| 295 | struct perf_report *rep = container_of(tool, struct perf_report, tool); |
| 296 | struct addr_location al; |
| 297 | |
| 298 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
| 299 | rep->annotate_init) < 0) { |
| 300 | fprintf(stderr, "problem processing %d event, skipping it.\n", |
| 301 | event->header.type); |
| 302 | return -1; |
| 303 | } |
| 304 | |
| 305 | if (al.filtered || (rep->hide_unresolved && al.sym == NULL)) |
| 306 | return 0; |
| 307 | |
| 308 | if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) |
| 309 | return 0; |
| 310 | |
| 311 | if (sort__branch_mode == 1) { |
| 312 | if (perf_report__add_branch_hist_entry(tool, &al, sample, |
| 313 | evsel, machine)) { |
| 314 | pr_debug("problem adding lbr entry, skipping event\n"); |
| 315 | return -1; |
| 316 | } |
| 317 | } else if (rep->mem_mode == 1) { |
| 318 | if (perf_report__add_mem_hist_entry(tool, &al, sample, |
| 319 | evsel, machine, event)) { |
| 320 | pr_debug("problem adding mem entry, skipping event\n"); |
| 321 | return -1; |
| 322 | } |
| 323 | } else { |
| 324 | if (al.map != NULL) |
| 325 | al.map->dso->hit = 1; |
| 326 | |
| 327 | if (perf_evsel__add_hist_entry(evsel, &al, sample, machine)) { |
| 328 | pr_debug("problem incrementing symbol period, skipping event\n"); |
| 329 | return -1; |
| 330 | } |
| 331 | } |
| 332 | return 0; |
| 333 | } |
| 334 | |
| 335 | static int process_read_event(struct perf_tool *tool, |
| 336 | union perf_event *event, |
| 337 | struct perf_sample *sample __maybe_unused, |
| 338 | struct perf_evsel *evsel, |
| 339 | struct machine *machine __maybe_unused) |
| 340 | { |
| 341 | struct perf_report *rep = container_of(tool, struct perf_report, tool); |
| 342 | |
| 343 | if (rep->show_threads) { |
| 344 | const char *name = evsel ? perf_evsel__name(evsel) : "unknown"; |
| 345 | perf_read_values_add_value(&rep->show_threads_values, |
| 346 | event->read.pid, event->read.tid, |
| 347 | event->read.id, |
| 348 | name, |
| 349 | event->read.value); |
| 350 | } |
| 351 | |
| 352 | dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid, |
| 353 | evsel ? perf_evsel__name(evsel) : "FAIL", |
| 354 | event->read.value); |
| 355 | |
| 356 | return 0; |
| 357 | } |
| 358 | |
| 359 | /* For pipe mode, sample_type is not currently set */ |
| 360 | static int perf_report__setup_sample_type(struct perf_report *rep) |
| 361 | { |
| 362 | struct perf_session *self = rep->session; |
| 363 | u64 sample_type = perf_evlist__sample_type(self->evlist); |
| 364 | |
| 365 | if (!self->fd_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { |
| 366 | if (sort__has_parent) { |
| 367 | ui__error("Selected --sort parent, but no " |
| 368 | "callchain data. Did you call " |
| 369 | "'perf record' without -g?\n"); |
| 370 | return -EINVAL; |
| 371 | } |
| 372 | if (symbol_conf.use_callchain) { |
| 373 | ui__error("Selected -g but no callchain data. Did " |
| 374 | "you call 'perf record' without -g?\n"); |
| 375 | return -1; |
| 376 | } |
| 377 | } else if (!rep->dont_use_callchains && |
| 378 | callchain_param.mode != CHAIN_NONE && |
| 379 | !symbol_conf.use_callchain) { |
| 380 | symbol_conf.use_callchain = true; |
| 381 | if (callchain_register_param(&callchain_param) < 0) { |
| 382 | ui__error("Can't register callchain params.\n"); |
| 383 | return -EINVAL; |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | if (sort__branch_mode == 1) { |
| 388 | if (!self->fd_pipe && |
| 389 | !(sample_type & PERF_SAMPLE_BRANCH_STACK)) { |
| 390 | ui__error("Selected -b but no branch data. " |
| 391 | "Did you call perf record without -b?\n"); |
| 392 | return -1; |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | return 0; |
| 397 | } |
| 398 | |
| 399 | extern volatile int session_done; |
| 400 | |
| 401 | static void sig_handler(int sig __maybe_unused) |
| 402 | { |
| 403 | session_done = 1; |
| 404 | } |
| 405 | |
| 406 | static size_t hists__fprintf_nr_sample_events(struct perf_report *rep, |
| 407 | struct hists *self, |
| 408 | const char *evname, FILE *fp) |
| 409 | { |
| 410 | size_t ret; |
| 411 | char unit; |
| 412 | unsigned long nr_samples = self->stats.nr_events[PERF_RECORD_SAMPLE]; |
| 413 | u64 nr_events = self->stats.total_period; |
| 414 | struct perf_evsel *evsel = hists_to_evsel(self); |
| 415 | char buf[512]; |
| 416 | size_t size = sizeof(buf); |
| 417 | |
| 418 | if (perf_evsel__is_group_event(evsel)) { |
| 419 | struct perf_evsel *pos; |
| 420 | |
| 421 | perf_evsel__group_desc(evsel, buf, size); |
| 422 | evname = buf; |
| 423 | |
| 424 | for_each_group_member(pos, evsel) { |
| 425 | nr_samples += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE]; |
| 426 | nr_events += pos->hists.stats.total_period; |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | nr_samples = convert_unit(nr_samples, &unit); |
| 431 | ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit); |
| 432 | if (evname != NULL) |
| 433 | ret += fprintf(fp, " of event '%s'", evname); |
| 434 | |
| 435 | if (rep->mem_mode) { |
| 436 | ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events); |
| 437 | ret += fprintf(fp, "\n# Sort order : %s", sort_order); |
| 438 | } else |
| 439 | ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events); |
| 440 | return ret + fprintf(fp, "\n#\n"); |
| 441 | } |
| 442 | |
| 443 | static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, |
| 444 | struct perf_report *rep, |
| 445 | const char *help) |
| 446 | { |
| 447 | struct perf_evsel *pos; |
| 448 | |
| 449 | list_for_each_entry(pos, &evlist->entries, node) { |
| 450 | struct hists *hists = &pos->hists; |
| 451 | const char *evname = perf_evsel__name(pos); |
| 452 | |
| 453 | if (symbol_conf.event_group && |
| 454 | !perf_evsel__is_group_leader(pos)) |
| 455 | continue; |
| 456 | |
| 457 | hists__fprintf_nr_sample_events(rep, hists, evname, stdout); |
| 458 | hists__fprintf(hists, true, 0, 0, stdout); |
| 459 | fprintf(stdout, "\n\n"); |
| 460 | } |
| 461 | |
| 462 | if (sort_order == default_sort_order && |
| 463 | parent_pattern == default_parent_pattern) { |
| 464 | fprintf(stdout, "#\n# (%s)\n#\n", help); |
| 465 | |
| 466 | if (rep->show_threads) { |
| 467 | bool style = !strcmp(rep->pretty_printing_style, "raw"); |
| 468 | perf_read_values_display(stdout, &rep->show_threads_values, |
| 469 | style); |
| 470 | perf_read_values_destroy(&rep->show_threads_values); |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | return 0; |
| 475 | } |
| 476 | |
| 477 | static int __cmd_report(struct perf_report *rep) |
| 478 | { |
| 479 | int ret = -EINVAL; |
| 480 | u64 nr_samples; |
| 481 | struct perf_session *session = rep->session; |
| 482 | struct perf_evsel *pos; |
| 483 | struct map *kernel_map; |
| 484 | struct kmap *kernel_kmap; |
| 485 | const char *help = "For a higher level overview, try: perf report --sort comm,dso"; |
| 486 | |
| 487 | signal(SIGINT, sig_handler); |
| 488 | |
| 489 | if (rep->cpu_list) { |
| 490 | ret = perf_session__cpu_bitmap(session, rep->cpu_list, |
| 491 | rep->cpu_bitmap); |
| 492 | if (ret) |
| 493 | goto out_delete; |
| 494 | } |
| 495 | |
| 496 | if (use_browser <= 0) |
| 497 | perf_session__fprintf_info(session, stdout, rep->show_full_info); |
| 498 | |
| 499 | if (rep->show_threads) |
| 500 | perf_read_values_init(&rep->show_threads_values); |
| 501 | |
| 502 | ret = perf_report__setup_sample_type(rep); |
| 503 | if (ret) |
| 504 | goto out_delete; |
| 505 | |
| 506 | ret = perf_session__process_events(session, &rep->tool); |
| 507 | if (ret) |
| 508 | goto out_delete; |
| 509 | |
| 510 | kernel_map = session->machines.host.vmlinux_maps[MAP__FUNCTION]; |
| 511 | kernel_kmap = map__kmap(kernel_map); |
| 512 | if (kernel_map == NULL || |
| 513 | (kernel_map->dso->hit && |
| 514 | (kernel_kmap->ref_reloc_sym == NULL || |
| 515 | kernel_kmap->ref_reloc_sym->addr == 0))) { |
| 516 | const char *desc = |
| 517 | "As no suitable kallsyms nor vmlinux was found, kernel samples\n" |
| 518 | "can't be resolved."; |
| 519 | |
| 520 | if (kernel_map) { |
| 521 | const struct dso *kdso = kernel_map->dso; |
| 522 | if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) { |
| 523 | desc = "If some relocation was applied (e.g. " |
| 524 | "kexec) symbols may be misresolved."; |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | ui__warning( |
| 529 | "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" |
| 530 | "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" |
| 531 | "Samples in kernel modules can't be resolved as well.\n\n", |
| 532 | desc); |
| 533 | } |
| 534 | |
| 535 | if (verbose > 3) |
| 536 | perf_session__fprintf(session, stdout); |
| 537 | |
| 538 | if (verbose > 2) |
| 539 | perf_session__fprintf_dsos(session, stdout); |
| 540 | |
| 541 | if (dump_trace) { |
| 542 | perf_session__fprintf_nr_events(session, stdout); |
| 543 | goto out_delete; |
| 544 | } |
| 545 | |
| 546 | nr_samples = 0; |
| 547 | list_for_each_entry(pos, &session->evlist->entries, node) { |
| 548 | struct hists *hists = &pos->hists; |
| 549 | |
| 550 | if (pos->idx == 0) |
| 551 | hists->symbol_filter_str = rep->symbol_filter_str; |
| 552 | |
| 553 | hists__collapse_resort(hists); |
| 554 | nr_samples += hists->stats.nr_events[PERF_RECORD_SAMPLE]; |
| 555 | |
| 556 | /* Non-group events are considered as leader */ |
| 557 | if (symbol_conf.event_group && |
| 558 | !perf_evsel__is_group_leader(pos)) { |
| 559 | struct hists *leader_hists = &pos->leader->hists; |
| 560 | |
| 561 | hists__match(leader_hists, hists); |
| 562 | hists__link(leader_hists, hists); |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | if (nr_samples == 0) { |
| 567 | ui__error("The %s file has no samples!\n", session->filename); |
| 568 | goto out_delete; |
| 569 | } |
| 570 | |
| 571 | list_for_each_entry(pos, &session->evlist->entries, node) |
| 572 | hists__output_resort(&pos->hists); |
| 573 | |
| 574 | if (use_browser > 0) { |
| 575 | if (use_browser == 1) { |
| 576 | ret = perf_evlist__tui_browse_hists(session->evlist, |
| 577 | help, |
| 578 | NULL, |
| 579 | &session->header.env); |
| 580 | /* |
| 581 | * Usually "ret" is the last pressed key, and we only |
| 582 | * care if the key notifies us to switch data file. |
| 583 | */ |
| 584 | if (ret != K_SWITCH_INPUT_DATA) |
| 585 | ret = 0; |
| 586 | |
| 587 | } else if (use_browser == 2) { |
| 588 | perf_evlist__gtk_browse_hists(session->evlist, help, |
| 589 | NULL); |
| 590 | } |
| 591 | } else |
| 592 | perf_evlist__tty_browse_hists(session->evlist, rep, help); |
| 593 | |
| 594 | out_delete: |
| 595 | /* |
| 596 | * Speed up the exit process, for large files this can |
| 597 | * take quite a while. |
| 598 | * |
| 599 | * XXX Enable this when using valgrind or if we ever |
| 600 | * librarize this command. |
| 601 | * |
| 602 | * Also experiment with obstacks to see how much speed |
| 603 | * up we'll get here. |
| 604 | * |
| 605 | * perf_session__delete(session); |
| 606 | */ |
| 607 | return ret; |
| 608 | } |
| 609 | |
| 610 | static int |
| 611 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) |
| 612 | { |
| 613 | struct perf_report *rep = (struct perf_report *)opt->value; |
| 614 | char *tok, *tok2; |
| 615 | char *endptr; |
| 616 | |
| 617 | /* |
| 618 | * --no-call-graph |
| 619 | */ |
| 620 | if (unset) { |
| 621 | rep->dont_use_callchains = true; |
| 622 | return 0; |
| 623 | } |
| 624 | |
| 625 | symbol_conf.use_callchain = true; |
| 626 | |
| 627 | if (!arg) |
| 628 | return 0; |
| 629 | |
| 630 | tok = strtok((char *)arg, ","); |
| 631 | if (!tok) |
| 632 | return -1; |
| 633 | |
| 634 | /* get the output mode */ |
| 635 | if (!strncmp(tok, "graph", strlen(arg))) |
| 636 | callchain_param.mode = CHAIN_GRAPH_ABS; |
| 637 | |
| 638 | else if (!strncmp(tok, "flat", strlen(arg))) |
| 639 | callchain_param.mode = CHAIN_FLAT; |
| 640 | |
| 641 | else if (!strncmp(tok, "fractal", strlen(arg))) |
| 642 | callchain_param.mode = CHAIN_GRAPH_REL; |
| 643 | |
| 644 | else if (!strncmp(tok, "none", strlen(arg))) { |
| 645 | callchain_param.mode = CHAIN_NONE; |
| 646 | symbol_conf.use_callchain = false; |
| 647 | |
| 648 | return 0; |
| 649 | } |
| 650 | |
| 651 | else |
| 652 | return -1; |
| 653 | |
| 654 | /* get the min percentage */ |
| 655 | tok = strtok(NULL, ","); |
| 656 | if (!tok) |
| 657 | goto setup; |
| 658 | |
| 659 | callchain_param.min_percent = strtod(tok, &endptr); |
| 660 | if (tok == endptr) |
| 661 | return -1; |
| 662 | |
| 663 | /* get the print limit */ |
| 664 | tok2 = strtok(NULL, ","); |
| 665 | if (!tok2) |
| 666 | goto setup; |
| 667 | |
| 668 | if (tok2[0] != 'c') { |
| 669 | callchain_param.print_limit = strtoul(tok2, &endptr, 0); |
| 670 | tok2 = strtok(NULL, ","); |
| 671 | if (!tok2) |
| 672 | goto setup; |
| 673 | } |
| 674 | |
| 675 | /* get the call chain order */ |
| 676 | if (!strcmp(tok2, "caller")) |
| 677 | callchain_param.order = ORDER_CALLER; |
| 678 | else if (!strcmp(tok2, "callee")) |
| 679 | callchain_param.order = ORDER_CALLEE; |
| 680 | else |
| 681 | return -1; |
| 682 | setup: |
| 683 | if (callchain_register_param(&callchain_param) < 0) { |
| 684 | fprintf(stderr, "Can't register callchain params\n"); |
| 685 | return -1; |
| 686 | } |
| 687 | return 0; |
| 688 | } |
| 689 | |
| 690 | static int |
| 691 | parse_branch_mode(const struct option *opt __maybe_unused, |
| 692 | const char *str __maybe_unused, int unset) |
| 693 | { |
| 694 | sort__branch_mode = !unset; |
| 695 | return 0; |
| 696 | } |
| 697 | |
| 698 | int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) |
| 699 | { |
| 700 | struct perf_session *session; |
| 701 | struct stat st; |
| 702 | bool has_br_stack = false; |
| 703 | int ret = -1; |
| 704 | char callchain_default_opt[] = "fractal,0.5,callee"; |
| 705 | const char * const report_usage[] = { |
| 706 | "perf report [<options>]", |
| 707 | NULL |
| 708 | }; |
| 709 | struct perf_report report = { |
| 710 | .tool = { |
| 711 | .sample = process_sample_event, |
| 712 | .mmap = perf_event__process_mmap, |
| 713 | .comm = perf_event__process_comm, |
| 714 | .exit = perf_event__process_exit, |
| 715 | .fork = perf_event__process_fork, |
| 716 | .lost = perf_event__process_lost, |
| 717 | .read = process_read_event, |
| 718 | .attr = perf_event__process_attr, |
| 719 | .event_type = perf_event__process_event_type, |
| 720 | .tracing_data = perf_event__process_tracing_data, |
| 721 | .build_id = perf_event__process_build_id, |
| 722 | .ordered_samples = true, |
| 723 | .ordering_requires_timestamps = true, |
| 724 | }, |
| 725 | .pretty_printing_style = "normal", |
| 726 | }; |
| 727 | const struct option options[] = { |
| 728 | OPT_STRING('i', "input", &input_name, "file", |
| 729 | "input file name"), |
| 730 | OPT_INCR('v', "verbose", &verbose, |
| 731 | "be more verbose (show symbol address, etc)"), |
| 732 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 733 | "dump raw trace in ASCII"), |
| 734 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
| 735 | "file", "vmlinux pathname"), |
| 736 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
| 737 | "file", "kallsyms pathname"), |
| 738 | OPT_BOOLEAN('f', "force", &report.force, "don't complain, do it"), |
| 739 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
| 740 | "load module symbols - WARNING: use only with -k and LIVE kernel"), |
| 741 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
| 742 | "Show a column with the number of samples"), |
| 743 | OPT_BOOLEAN('T', "threads", &report.show_threads, |
| 744 | "Show per-thread event counters"), |
| 745 | OPT_STRING(0, "pretty", &report.pretty_printing_style, "key", |
| 746 | "pretty printing style key: normal raw"), |
| 747 | OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"), |
| 748 | OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"), |
| 749 | OPT_BOOLEAN(0, "stdio", &report.use_stdio, |
| 750 | "Use the stdio interface"), |
| 751 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
| 752 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline," |
| 753 | " dso_to, dso_from, symbol_to, symbol_from, mispredict," |
| 754 | " weight, local_weight, mem, symbol_daddr, dso_daddr, tlb, " |
| 755 | "snoop, locked"), |
| 756 | OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, |
| 757 | "Show sample percentage for different cpu modes"), |
| 758 | OPT_STRING('p', "parent", &parent_pattern, "regex", |
| 759 | "regex filter to identify parent, see: '--sort parent'"), |
| 760 | OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, |
| 761 | "Only display entries with parent-match"), |
| 762 | OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order", |
| 763 | "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit and callchain order. " |
| 764 | "Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt), |
| 765 | OPT_BOOLEAN('G', "inverted", &report.inverted_callchain, |
| 766 | "alias for inverted call graph"), |
| 767 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
| 768 | "only consider symbols in these dsos"), |
| 769 | OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", |
| 770 | "only consider symbols in these comms"), |
| 771 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", |
| 772 | "only consider these symbols"), |
| 773 | OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter", |
| 774 | "only show symbols that (partially) match with this filter"), |
| 775 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
| 776 | "width[,width...]", |
| 777 | "don't try to adjust column width, use these fixed values"), |
| 778 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", |
| 779 | "separator for columns, no spaces will be added between " |
| 780 | "columns '.' is reserved."), |
| 781 | OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved, |
| 782 | "Only display entries resolved to a symbol"), |
| 783 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
| 784 | "Look for files with symbols relative to this directory"), |
| 785 | OPT_STRING('C', "cpu", &report.cpu_list, "cpu", |
| 786 | "list of cpus to profile"), |
| 787 | OPT_BOOLEAN('I', "show-info", &report.show_full_info, |
| 788 | "Display extended information about perf.data file"), |
| 789 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
| 790 | "Interleave source code with assembly code (default)"), |
| 791 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, |
| 792 | "Display raw encoding of assembly instructions (default)"), |
| 793 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
| 794 | "Specify disassembler style (e.g. -M intel for intel syntax)"), |
| 795 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
| 796 | "Show a column with the sum of periods"), |
| 797 | OPT_BOOLEAN(0, "group", &symbol_conf.event_group, |
| 798 | "Show event group information together"), |
| 799 | OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "", |
| 800 | "use branch records for histogram filling", parse_branch_mode), |
| 801 | OPT_STRING(0, "objdump", &objdump_path, "path", |
| 802 | "objdump binary to use for disassembly and annotations"), |
| 803 | OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, |
| 804 | "Disable symbol demangling"), |
| 805 | OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"), |
| 806 | OPT_END() |
| 807 | }; |
| 808 | |
| 809 | perf_config(perf_report_config, NULL); |
| 810 | |
| 811 | argc = parse_options(argc, argv, options, report_usage, 0); |
| 812 | |
| 813 | if (report.use_stdio) |
| 814 | use_browser = 0; |
| 815 | else if (report.use_tui) |
| 816 | use_browser = 1; |
| 817 | else if (report.use_gtk) |
| 818 | use_browser = 2; |
| 819 | |
| 820 | if (report.inverted_callchain) |
| 821 | callchain_param.order = ORDER_CALLER; |
| 822 | |
| 823 | if (!input_name || !strlen(input_name)) { |
| 824 | if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) |
| 825 | input_name = "-"; |
| 826 | else |
| 827 | input_name = "perf.data"; |
| 828 | } |
| 829 | |
| 830 | if (strcmp(input_name, "-") != 0) |
| 831 | setup_browser(true); |
| 832 | else { |
| 833 | use_browser = 0; |
| 834 | perf_hpp__column_enable(PERF_HPP__OVERHEAD); |
| 835 | perf_hpp__init(); |
| 836 | } |
| 837 | |
| 838 | repeat: |
| 839 | session = perf_session__new(input_name, O_RDONLY, |
| 840 | report.force, false, &report.tool); |
| 841 | if (session == NULL) |
| 842 | return -ENOMEM; |
| 843 | |
| 844 | report.session = session; |
| 845 | |
| 846 | has_br_stack = perf_header__has_feat(&session->header, |
| 847 | HEADER_BRANCH_STACK); |
| 848 | |
| 849 | if (sort__branch_mode == -1 && has_br_stack) |
| 850 | sort__branch_mode = 1; |
| 851 | |
| 852 | /* sort__branch_mode could be 0 if --no-branch-stack */ |
| 853 | if (sort__branch_mode == 1) { |
| 854 | /* |
| 855 | * if no sort_order is provided, then specify |
| 856 | * branch-mode specific order |
| 857 | */ |
| 858 | if (sort_order == default_sort_order) |
| 859 | sort_order = "comm,dso_from,symbol_from," |
| 860 | "dso_to,symbol_to"; |
| 861 | |
| 862 | } |
| 863 | if (report.mem_mode) { |
| 864 | if (sort__branch_mode == 1) { |
| 865 | fprintf(stderr, "branch and mem mode incompatible\n"); |
| 866 | goto error; |
| 867 | } |
| 868 | /* |
| 869 | * if no sort_order is provided, then specify |
| 870 | * branch-mode specific order |
| 871 | */ |
| 872 | if (sort_order == default_sort_order) |
| 873 | sort_order = "local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked"; |
| 874 | } |
| 875 | |
| 876 | if (setup_sorting() < 0) |
| 877 | usage_with_options(report_usage, options); |
| 878 | |
| 879 | /* |
| 880 | * Only in the TUI browser we are doing integrated annotation, |
| 881 | * so don't allocate extra space that won't be used in the stdio |
| 882 | * implementation. |
| 883 | */ |
| 884 | if (use_browser == 1 && sort__has_sym) { |
| 885 | symbol_conf.priv_size = sizeof(struct annotation); |
| 886 | report.annotate_init = symbol__annotate_init; |
| 887 | /* |
| 888 | * For searching by name on the "Browse map details". |
| 889 | * providing it only in verbose mode not to bloat too |
| 890 | * much struct symbol. |
| 891 | */ |
| 892 | if (verbose) { |
| 893 | /* |
| 894 | * XXX: Need to provide a less kludgy way to ask for |
| 895 | * more space per symbol, the u32 is for the index on |
| 896 | * the ui browser. |
| 897 | * See symbol__browser_index. |
| 898 | */ |
| 899 | symbol_conf.priv_size += sizeof(u32); |
| 900 | symbol_conf.sort_by_name = true; |
| 901 | } |
| 902 | } |
| 903 | |
| 904 | if (symbol__init() < 0) |
| 905 | goto error; |
| 906 | |
| 907 | if (parent_pattern != default_parent_pattern) { |
| 908 | if (sort_dimension__add("parent") < 0) |
| 909 | goto error; |
| 910 | |
| 911 | /* |
| 912 | * Only show the parent fields if we explicitly |
| 913 | * sort that way. If we only use parent machinery |
| 914 | * for filtering, we don't want it. |
| 915 | */ |
| 916 | if (!strstr(sort_order, "parent")) |
| 917 | sort_parent.elide = 1; |
| 918 | } else |
| 919 | symbol_conf.exclude_other = false; |
| 920 | |
| 921 | if (argc) { |
| 922 | /* |
| 923 | * Special case: if there's an argument left then assume that |
| 924 | * it's a symbol filter: |
| 925 | */ |
| 926 | if (argc > 1) |
| 927 | usage_with_options(report_usage, options); |
| 928 | |
| 929 | report.symbol_filter_str = argv[0]; |
| 930 | } |
| 931 | |
| 932 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); |
| 933 | |
| 934 | if (sort__branch_mode == 1) { |
| 935 | sort_entry__setup_elide(&sort_dso_from, symbol_conf.dso_from_list, "dso_from", stdout); |
| 936 | sort_entry__setup_elide(&sort_dso_to, symbol_conf.dso_to_list, "dso_to", stdout); |
| 937 | sort_entry__setup_elide(&sort_sym_from, symbol_conf.sym_from_list, "sym_from", stdout); |
| 938 | sort_entry__setup_elide(&sort_sym_to, symbol_conf.sym_to_list, "sym_to", stdout); |
| 939 | } else { |
| 940 | if (report.mem_mode) { |
| 941 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "symbol_daddr", stdout); |
| 942 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso_daddr", stdout); |
| 943 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "mem", stdout); |
| 944 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "local_weight", stdout); |
| 945 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "tlb", stdout); |
| 946 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "snoop", stdout); |
| 947 | } |
| 948 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); |
| 949 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); |
| 950 | } |
| 951 | |
| 952 | ret = __cmd_report(&report); |
| 953 | if (ret == K_SWITCH_INPUT_DATA) { |
| 954 | perf_session__delete(session); |
| 955 | goto repeat; |
| 956 | } else |
| 957 | ret = 0; |
| 958 | |
| 959 | error: |
| 960 | perf_session__delete(session); |
| 961 | return ret; |
| 962 | } |