SAFE public projects git trees. - safe/jmp/linux-2.6/blob - tools/perf/builtin-report.c

   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
  12 #include "util/color.h"
  13 #include <linux/list.h>
  14 #include "util/cache.h"
  15 #include <linux/rbtree.h>
  16 #include "util/symbol.h"
  17 #include "util/string.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/header.h"
  25
  26 #include "util/parse-options.h"
  27 #include "util/parse-events.h"
  28
  29 #include "util/data_map.h"
  30 #include "util/thread.h"
  31 #include "util/sort.h"
  32 #include "util/hist.h"
  33
  34 static char             const *input_name = "perf.data";
  35
  36 static char             *dso_list_str, *comm_list_str, *sym_list_str,
  37                         *col_width_list_str;
  38 static struct strlist   *dso_list, *comm_list, *sym_list;
  39
  40 static int              force;
  41
  42 static int              full_paths;
  43 static int              show_nr_samples;
  44
  45 static int              show_threads;
  46 static struct perf_read_values  show_threads_values;
  47
  48 static char             default_pretty_printing_style[] = "normal";
  49 static char             *pretty_printing_style = default_pretty_printing_style;
  50
  51 static int              exclude_other = 1;
  52
  53 static char             callchain_default_opt[] = "fractal,0.5";
  54
  55 static struct perf_header *header;
  56
  57 static u64              sample_type;
  58
  59 struct symbol_conf      symbol_conf;
  60
  61
  62 static size_t
  63 callchain__fprintf_left_margin(FILE *fp, int left_margin)
  64 {
  65         int i;
  66         int ret;
  67
  68         ret = fprintf(fp, "            ");
  69
  70         for (i = 0; i < left_margin; i++)
  71                 ret += fprintf(fp, " ");
  72
  73         return ret;
  74 }
  75
  76 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
  77                                           int left_margin)
  78 {
  79         int i;
  80         size_t ret = 0;
  81
  82         ret += callchain__fprintf_left_margin(fp, left_margin);
  83
  84         for (i = 0; i < depth; i++)
  85                 if (depth_mask & (1 << i))
  86                         ret += fprintf(fp, "|          ");
  87                 else
  88                         ret += fprintf(fp, "           ");
  89
  90         ret += fprintf(fp, "\n");
  91
  92         return ret;
  93 }
  94 static size_t
  95 ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, int depth,
  96                        int depth_mask, int count, u64 total_samples,
  97                        int hits, int left_margin)
  98 {
  99         int i;
 100         size_t ret = 0;
 101
 102         ret += callchain__fprintf_left_margin(fp, left_margin);
 103         for (i = 0; i < depth; i++) {
 104                 if (depth_mask & (1 << i))
 105                         ret += fprintf(fp, "|");
 106                 else
 107                         ret += fprintf(fp, " ");
 108                 if (!count && i == depth - 1) {
 109                         double percent;
 110
 111                         percent = hits * 100.0 / total_samples;
 112                         ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
 113                 } else
 114                         ret += fprintf(fp, "%s", "          ");
 115         }
 116         if (chain->sym)
 117                 ret += fprintf(fp, "%s\n", chain->sym->name);
 118         else
 119                 ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
 120
 121         return ret;
 122 }
 123
 124 static struct symbol *rem_sq_bracket;
 125 static struct callchain_list rem_hits;
 126
 127 static void init_rem_hits(void)
 128 {
 129         rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
 130         if (!rem_sq_bracket) {
 131                 fprintf(stderr, "Not enough memory to display remaining hits\n");
 132                 return;
 133         }
 134
 135         strcpy(rem_sq_bracket->name, "[...]");
 136         rem_hits.sym = rem_sq_bracket;
 137 }
 138
 139 static size_t
 140 __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 141                            u64 total_samples, int depth, int depth_mask,
 142                            int left_margin)
 143 {
 144         struct rb_node *node, *next;
 145         struct callchain_node *child;
 146         struct callchain_list *chain;
 147         int new_depth_mask = depth_mask;
 148         u64 new_total;
 149         u64 remaining;
 150         size_t ret = 0;
 151         int i;
 152
 153         if (callchain_param.mode == CHAIN_GRAPH_REL)
 154                 new_total = self->children_hit;
 155         else
 156                 new_total = total_samples;
 157
 158         remaining = new_total;
 159
 160         node = rb_first(&self->rb_root);
 161         while (node) {
 162                 u64 cumul;
 163
 164                 child = rb_entry(node, struct callchain_node, rb_node);
 165                 cumul = cumul_hits(child);
 166                 remaining -= cumul;
 167
 168                 /*
 169                  * The depth mask manages the output of pipes that show
 170                  * the depth. We don't want to keep the pipes of the current
 171                  * level for the last child of this depth.
 172                  * Except if we have remaining filtered hits. They will
 173                  * supersede the last child
 174                  */
 175                 next = rb_next(node);
 176                 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
 177                         new_depth_mask &= ~(1 << (depth - 1));
 178
 179                 /*
 180                  * But we keep the older depth mask for the line seperator
 181                  * to keep the level link until we reach the last child
 182                  */
 183                 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
 184                                                    left_margin);
 185                 i = 0;
 186                 list_for_each_entry(chain, &child->val, list) {
 187                         if (chain->ip >= PERF_CONTEXT_MAX)
 188                                 continue;
 189                         ret += ipchain__fprintf_graph(fp, chain, depth,
 190                                                       new_depth_mask, i++,
 191                                                       new_total,
 192                                                       cumul,
 193                                                       left_margin);
 194                 }
 195                 ret += __callchain__fprintf_graph(fp, child, new_total,
 196                                                   depth + 1,
 197                                                   new_depth_mask | (1 << depth),
 198                                                   left_margin);
 199                 node = next;
 200         }
 201
 202         if (callchain_param.mode == CHAIN_GRAPH_REL &&
 203                 remaining && remaining != new_total) {
 204
 205                 if (!rem_sq_bracket)
 206                         return ret;
 207
 208                 new_depth_mask &= ~(1 << (depth - 1));
 209
 210                 ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
 211                                               new_depth_mask, 0, new_total,
 212                                               remaining, left_margin);
 213         }
 214
 215         return ret;
 216 }
 217
 218
 219 static size_t
 220 callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 221                          u64 total_samples, int left_margin)
 222 {
 223         struct callchain_list *chain;
 224         bool printed = false;
 225         int i = 0;
 226         int ret = 0;
 227
 228         list_for_each_entry(chain, &self->val, list) {
 229                 if (chain->ip >= PERF_CONTEXT_MAX)
 230                         continue;
 231
 232                 if (!i++ && sort__first_dimension == SORT_SYM)
 233                         continue;
 234
 235                 if (!printed) {
 236                         ret += callchain__fprintf_left_margin(fp, left_margin);
 237                         ret += fprintf(fp, "|\n");
 238                         ret += callchain__fprintf_left_margin(fp, left_margin);
 239                         ret += fprintf(fp, "---");
 240
 241                         left_margin += 3;
 242                         printed = true;
 243                 } else
 244                         ret += callchain__fprintf_left_margin(fp, left_margin);
 245
 246                 if (chain->sym)
 247                         ret += fprintf(fp, " %s\n", chain->sym->name);
 248                 else
 249                         ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
 250         }
 251
 252         ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin);
 253
 254         return ret;
 255 }
 256
 257 static size_t
 258 callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
 259                         u64 total_samples)
 260 {
 261         struct callchain_list *chain;
 262         size_t ret = 0;
 263
 264         if (!self)
 265                 return 0;
 266
 267         ret += callchain__fprintf_flat(fp, self->parent, total_samples);
 268
 269
 270         list_for_each_entry(chain, &self->val, list) {
 271                 if (chain->ip >= PERF_CONTEXT_MAX)
 272                         continue;
 273                 if (chain->sym)
 274                         ret += fprintf(fp, "                %s\n", chain->sym->name);
 275                 else
 276                         ret += fprintf(fp, "                %p\n",
 277                                         (void *)(long)chain->ip);
 278         }
 279
 280         return ret;
 281 }
 282
 283 static size_t
 284 hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
 285                               u64 total_samples, int left_margin)
 286 {
 287         struct rb_node *rb_node;
 288         struct callchain_node *chain;
 289         size_t ret = 0;
 290
 291         rb_node = rb_first(&self->sorted_chain);
 292         while (rb_node) {
 293                 double percent;
 294
 295                 chain = rb_entry(rb_node, struct callchain_node, rb_node);
 296                 percent = chain->hit * 100.0 / total_samples;
 297                 switch (callchain_param.mode) {
 298                 case CHAIN_FLAT:
 299                         ret += percent_color_fprintf(fp, "           %6.2f%%\n",
 300                                                      percent);
 301                         ret += callchain__fprintf_flat(fp, chain, total_samples);
 302                         break;
 303                 case CHAIN_GRAPH_ABS: /* Falldown */
 304                 case CHAIN_GRAPH_REL:
 305                         ret += callchain__fprintf_graph(fp, chain, total_samples,
 306                                                         left_margin);
 307                 case CHAIN_NONE:
 308                 default:
 309                         break;
 310                 }
 311                 ret += fprintf(fp, "\n");
 312                 rb_node = rb_next(rb_node);
 313         }
 314
 315         return ret;
 316 }
 317
 318 static size_t
 319 hist_entry__fprintf(FILE *fp, struct hist_entry *self, u64 total_samples)
 320 {
 321         struct sort_entry *se;
 322         size_t ret;
 323
 324         if (exclude_other && !self->parent)
 325                 return 0;
 326
 327         if (total_samples)
 328                 ret = percent_color_fprintf(fp,
 329                                             field_sep ? "%.2f" : "   %6.2f%%",
 330                                         (self->count * 100.0) / total_samples);
 331         else
 332                 ret = fprintf(fp, field_sep ? "%lld" : "%12lld ", self->count);
 333
 334         if (show_nr_samples) {
 335                 if (field_sep)
 336                         fprintf(fp, "%c%lld", *field_sep, self->count);
 337                 else
 338                         fprintf(fp, "%11lld", self->count);
 339         }
 340
 341         list_for_each_entry(se, &hist_entry__sort_list, list) {
 342                 if (se->elide)
 343                         continue;
 344
 345                 fprintf(fp, "%s", field_sep ?: "  ");
 346                 ret += se->print(fp, self, se->width ? *se->width : 0);
 347         }
 348
 349         ret += fprintf(fp, "\n");
 350
 351         if (callchain) {
 352                 int left_margin = 0;
 353
 354                 if (sort__first_dimension == SORT_COMM) {
 355                         se = list_first_entry(&hist_entry__sort_list, typeof(*se),
 356                                                 list);
 357                         left_margin = se->width ? *se->width : 0;
 358                         left_margin -= thread__comm_len(self->thread);
 359                 }
 360
 361                 hist_entry_callchain__fprintf(fp, self, total_samples,
 362                                               left_margin);
 363         }
 364
 365         return ret;
 366 }
 367
 368 /*
 369  *
 370  */
 371
 372 static void dso__calc_col_width(struct dso *self)
 373 {
 374         if (!col_width_list_str && !field_sep &&
 375             (!dso_list || strlist__has_entry(dso_list, self->name))) {
 376                 unsigned int slen = strlen(self->name);
 377                 if (slen > dsos__col_width)
 378                         dsos__col_width = slen;
 379         }
 380
 381         self->slen_calculated = 1;
 382 }
 383
 384 static void thread__comm_adjust(struct thread *self)
 385 {
 386         char *comm = self->comm;
 387
 388         if (!col_width_list_str && !field_sep &&
 389             (!comm_list || strlist__has_entry(comm_list, comm))) {
 390                 unsigned int slen = strlen(comm);
 391
 392                 if (slen > comms__col_width) {
 393                         comms__col_width = slen;
 394                         threads__col_width = slen + 6;
 395                 }
 396         }
 397 }
 398
 399 static int thread__set_comm_adjust(struct thread *self, const char *comm)
 400 {
 401         int ret = thread__set_comm(self, comm);
 402
 403         if (ret)
 404                 return ret;
 405
 406         thread__comm_adjust(self);
 407
 408         return 0;
 409 }
 410
 411 static int call__match(struct symbol *sym)
 412 {
 413         if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0))
 414                 return 1;
 415
 416         return 0;
 417 }
 418
 419 static struct symbol **resolve_callchain(struct thread *thread,
 420                                          struct ip_callchain *chain,
 421                                          struct symbol **parent)
 422 {
 423         u8 cpumode = PERF_RECORD_MISC_USER;
 424         struct symbol **syms = NULL;
 425         unsigned int i;
 426
 427         if (callchain) {
 428                 syms = calloc(chain->nr, sizeof(*syms));
 429                 if (!syms) {
 430                         fprintf(stderr, "Can't allocate memory for symbols\n");
 431                         exit(-1);
 432                 }
 433         }
 434
 435         for (i = 0; i < chain->nr; i++) {
 436                 u64 ip = chain->ips[i];
 437                 struct addr_location al;
 438
 439                 if (ip >= PERF_CONTEXT_MAX) {
 440                         switch (ip) {
 441                         case PERF_CONTEXT_HV:
 442                                 cpumode = PERF_RECORD_MISC_HYPERVISOR;  break;
 443                         case PERF_CONTEXT_KERNEL:
 444                                 cpumode = PERF_RECORD_MISC_KERNEL;      break;
 445                         case PERF_CONTEXT_USER:
 446                                 cpumode = PERF_RECORD_MISC_USER;        break;
 447                         default:
 448                                 break;
 449                         }
 450                         continue;
 451                 }
 452
 453                 thread__find_addr_location(thread, cpumode, MAP__FUNCTION,
 454                                            ip, &al, NULL);
 455                 if (al.sym != NULL) {
 456                         if (sort__has_parent && !*parent &&
 457                             call__match(al.sym))
 458                                 *parent = al.sym;
 459                         if (!callchain)
 460                                 break;
 461                         syms[i] = al.sym;
 462                 }
 463         }
 464
 465         return syms;
 466 }
 467
 468 /*
 469  * collect histogram counts
 470  */
 471
 472 static int hist_entry__add(struct addr_location *al,
 473                            struct ip_callchain *chain, u64 count)
 474 {
 475         struct symbol **syms = NULL, *parent = NULL;
 476         bool hit;
 477         struct hist_entry *he;
 478
 479         if ((sort__has_parent || callchain) && chain)
 480                 syms = resolve_callchain(al->thread, chain, &parent);
 481
 482         he = __hist_entry__add(al, parent, count, &hit);
 483         if (he == NULL)
 484                 return -ENOMEM;
 485
 486         if (hit)
 487                 he->count += count;
 488
 489         if (callchain) {
 490                 if (!hit)
 491                         callchain_init(&he->callchain);
 492                 append_chain(&he->callchain, chain, syms);
 493                 free(syms);
 494         }
 495
 496         return 0;
 497 }
 498
 499 static size_t output__fprintf(FILE *fp, u64 total_samples)
 500 {
 501         struct hist_entry *pos;
 502         struct sort_entry *se;
 503         struct rb_node *nd;
 504         size_t ret = 0;
 505         unsigned int width;
 506         char *col_width = col_width_list_str;
 507         int raw_printing_style;
 508
 509         raw_printing_style = !strcmp(pretty_printing_style, "raw");
 510
 511         init_rem_hits();
 512
 513         fprintf(fp, "# Samples: %Ld\n", (u64)total_samples);
 514         fprintf(fp, "#\n");
 515
 516         fprintf(fp, "# Overhead");
 517         if (show_nr_samples) {
 518                 if (field_sep)
 519                         fprintf(fp, "%cSamples", *field_sep);
 520                 else
 521                         fputs("  Samples  ", fp);
 522         }
 523         list_for_each_entry(se, &hist_entry__sort_list, list) {
 524                 if (se->elide)
 525                         continue;
 526                 if (field_sep) {
 527                         fprintf(fp, "%c%s", *field_sep, se->header);
 528                         continue;
 529                 }
 530                 width = strlen(se->header);
 531                 if (se->width) {
 532                         if (col_width_list_str) {
 533                                 if (col_width) {
 534                                         *se->width = atoi(col_width);
 535                                         col_width = strchr(col_width, ',');
 536                                         if (col_width)
 537                                                 ++col_width;
 538                                 }
 539                         }
 540                         width = *se->width = max(*se->width, width);
 541                 }
 542                 fprintf(fp, "  %*s", width, se->header);
 543         }
 544         fprintf(fp, "\n");
 545
 546         if (field_sep)
 547                 goto print_entries;
 548
 549         fprintf(fp, "# ........");
 550         if (show_nr_samples)
 551                 fprintf(fp, " ..........");
 552         list_for_each_entry(se, &hist_entry__sort_list, list) {
 553                 unsigned int i;
 554
 555                 if (se->elide)
 556                         continue;
 557
 558                 fprintf(fp, "  ");
 559                 if (se->width)
 560                         width = *se->width;
 561                 else
 562                         width = strlen(se->header);
 563                 for (i = 0; i < width; i++)
 564                         fprintf(fp, ".");
 565         }
 566         fprintf(fp, "\n");
 567
 568         fprintf(fp, "#\n");
 569
 570 print_entries:
 571         for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
 572                 pos = rb_entry(nd, struct hist_entry, rb_node);
 573                 ret += hist_entry__fprintf(fp, pos, total_samples);
 574         }
 575
 576         if (sort_order == default_sort_order &&
 577                         parent_pattern == default_parent_pattern) {
 578                 fprintf(fp, "#\n");
 579                 fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n");
 580                 fprintf(fp, "#\n");
 581         }
 582         fprintf(fp, "\n");
 583
 584         free(rem_sq_bracket);
 585
 586         if (show_threads)
 587                 perf_read_values_display(fp, &show_threads_values,
 588                                          raw_printing_style);
 589
 590         return ret;
 591 }
 592
 593 static int validate_chain(struct ip_callchain *chain, event_t *event)
 594 {
 595         unsigned int chain_size;
 596
 597         chain_size = event->header.size;
 598         chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event;
 599
 600         if (chain->nr*sizeof(u64) > chain_size)
 601                 return -1;
 602
 603         return 0;
 604 }
 605
 606 static int process_sample_event(event_t *event)
 607 {
 608         struct sample_data data;
 609         int cpumode;
 610         struct addr_location al;
 611         struct thread *thread;
 612
 613         memset(&data, 0, sizeof(data));
 614         data.period = 1;
 615
 616         event__parse_sample(event, sample_type, &data);
 617
 618         dump_printf("(IP, %d): %d/%d: %p period: %Ld\n",
 619                 event->header.misc,
 620                 data.pid, data.tid,
 621                 (void *)(long)data.ip,
 622                 (long long)data.period);
 623
 624         if (sample_type & PERF_SAMPLE_CALLCHAIN) {
 625                 unsigned int i;
 626
 627                 dump_printf("... chain: nr:%Lu\n", data.callchain->nr);
 628
 629                 if (validate_chain(data.callchain, event) < 0) {
 630                         pr_debug("call-chain problem with event, "
 631                                  "skipping it.\n");
 632                         return 0;
 633                 }
 634
 635                 if (dump_trace) {
 636                         for (i = 0; i < data.callchain->nr; i++)
 637                                 dump_printf("..... %2d: %016Lx\n",
 638                                             i, data.callchain->ips[i]);
 639                 }
 640         }
 641
 642         thread = threads__findnew(data.pid);
 643         if (thread == NULL) {
 644                 pr_debug("problem processing %d event, skipping it.\n",
 645                         event->header.type);
 646                 return -1;
 647         }
 648
 649         dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
 650
 651         if (comm_list && !strlist__has_entry(comm_list, thread->comm))
 652                 return 0;
 653
 654         cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 655
 656         thread__find_addr_location(thread, cpumode,
 657                                    MAP__FUNCTION, data.ip, &al, NULL);
 658         /*
 659          * We have to do this here as we may have a dso with no symbol hit that
 660          * has a name longer than the ones with symbols sampled.
 661          */
 662         if (al.map && !sort_dso.elide && !al.map->dso->slen_calculated)
 663                 dso__calc_col_width(al.map->dso);
 664
 665         if (dso_list &&
 666             (!al.map || !al.map->dso ||
 667              !(strlist__has_entry(dso_list, al.map->dso->short_name) ||
 668                (al.map->dso->short_name != al.map->dso->long_name &&
 669                 strlist__has_entry(dso_list, al.map->dso->long_name)))))
 670                 return 0;
 671
 672         if (sym_list && al.sym && !strlist__has_entry(sym_list, al.sym->name))
 673                 return 0;
 674
 675         if (hist_entry__add(&al, data.callchain, data.period)) {
 676                 pr_debug("problem incrementing symbol count, skipping event\n");
 677                 return -1;
 678         }
 679
 680         event__stats.total += data.period;
 681
 682         return 0;
 683 }
 684
 685 static int process_comm_event(event_t *event)
 686 {
 687         struct thread *thread = threads__findnew(event->comm.pid);
 688
 689         dump_printf(": %s:%d\n", event->comm.comm, event->comm.pid);
 690
 691         if (thread == NULL ||
 692             thread__set_comm_adjust(thread, event->comm.comm)) {
 693                 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
 694                 return -1;
 695         }
 696
 697         return 0;
 698 }
 699
 700 static int process_read_event(event_t *event)
 701 {
 702         struct perf_event_attr *attr;
 703
 704         attr = perf_header__find_attr(event->read.id, header);
 705
 706         if (show_threads) {
 707                 const char *name = attr ? __event_name(attr->type, attr->config)
 708                                    : "unknown";
 709                 perf_read_values_add_value(&show_threads_values,
 710                                            event->read.pid, event->read.tid,
 711                                            event->read.id,
 712                                            name,
 713                                            event->read.value);
 714         }
 715
 716         dump_printf(": %d %d %s %Lu\n", event->read.pid, event->read.tid,
 717                     attr ? __event_name(attr->type, attr->config) : "FAIL",
 718                     event->read.value);
 719
 720         return 0;
 721 }
 722
 723 static int sample_type_check(u64 type)
 724 {
 725         sample_type = type;
 726
 727         if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 728                 if (sort__has_parent) {
 729                         fprintf(stderr, "selected --sort parent, but no"
 730                                         " callchain data. Did you call"
 731                                         " perf record without -g?\n");
 732                         return -1;
 733                 }
 734                 if (callchain) {
 735                         fprintf(stderr, "selected -g but no callchain data."
 736                                         " Did you call perf record without"
 737                                         " -g?\n");
 738                         return -1;
 739                 }
 740         } else if (callchain_param.mode != CHAIN_NONE && !callchain) {
 741                         callchain = 1;
 742                         if (register_callchain_param(&callchain_param) < 0) {
 743                                 fprintf(stderr, "Can't register callchain"
 744                                                 " params\n");
 745                                 return -1;
 746                         }
 747         }
 748
 749         return 0;
 750 }
 751
 752 static struct perf_file_handler file_handler = {
 753         .process_sample_event   = process_sample_event,
 754         .process_mmap_event     = event__process_mmap,
 755         .process_comm_event     = process_comm_event,
 756         .process_exit_event     = event__process_task,
 757         .process_fork_event     = event__process_task,
 758         .process_lost_event     = event__process_lost,
 759         .process_read_event     = process_read_event,
 760         .sample_type_check      = sample_type_check,
 761 };
 762
 763
 764 static int __cmd_report(void)
 765 {
 766         struct thread *idle;
 767         int ret;
 768
 769         idle = register_idle_thread();
 770         thread__comm_adjust(idle);
 771
 772         if (show_threads)
 773                 perf_read_values_init(&show_threads_values);
 774
 775         register_perf_file_handler(&file_handler);
 776
 777         ret = mmap_dispatch_perf_file(&header, input_name, force,
 778                                       full_paths, &event__cwdlen, &event__cwd);
 779         if (ret)
 780                 return ret;
 781
 782         if (dump_trace) {
 783                 event__print_totals();
 784                 return 0;
 785         }
 786
 787         if (verbose > 3)
 788                 threads__fprintf(stdout);
 789
 790         if (verbose > 2)
 791                 dsos__fprintf(stdout);
 792
 793         collapse__resort();
 794         output__resort(event__stats.total);
 795         output__fprintf(stdout, event__stats.total);
 796
 797         if (show_threads)
 798                 perf_read_values_destroy(&show_threads_values);
 799
 800         return ret;
 801 }
 802
 803 static int
 804 parse_callchain_opt(const struct option *opt __used, const char *arg,
 805                     int unset __used)
 806 {
 807         char *tok;
 808         char *endptr;
 809
 810         callchain = 1;
 811
 812         if (!arg)
 813                 return 0;
 814
 815         tok = strtok((char *)arg, ",");
 816         if (!tok)
 817                 return -1;
 818
 819         /* get the output mode */
 820         if (!strncmp(tok, "graph", strlen(arg)))
 821                 callchain_param.mode = CHAIN_GRAPH_ABS;
 822
 823         else if (!strncmp(tok, "flat", strlen(arg)))
 824                 callchain_param.mode = CHAIN_FLAT;
 825
 826         else if (!strncmp(tok, "fractal", strlen(arg)))
 827                 callchain_param.mode = CHAIN_GRAPH_REL;
 828
 829         else if (!strncmp(tok, "none", strlen(arg))) {
 830                 callchain_param.mode = CHAIN_NONE;
 831                 callchain = 0;
 832
 833                 return 0;
 834         }
 835
 836         else
 837                 return -1;
 838
 839         /* get the min percentage */
 840         tok = strtok(NULL, ",");
 841         if (!tok)
 842                 goto setup;
 843
 844         callchain_param.min_percent = strtod(tok, &endptr);
 845         if (tok == endptr)
 846                 return -1;
 847
 848 setup:
 849         if (register_callchain_param(&callchain_param) < 0) {
 850                 fprintf(stderr, "Can't register callchain params\n");
 851                 return -1;
 852         }
 853         return 0;
 854 }
 855
 856 //static const char * const report_usage[] = {
 857 const char * const report_usage[] = {
 858         "perf report [<options>] <command>",
 859         NULL
 860 };
 861
 862 static const struct option options[] = {
 863         OPT_STRING('i', "input", &input_name, "file",
 864                     "input file name"),
 865         OPT_BOOLEAN('v', "verbose", &verbose,
 866                     "be more verbose (show symbol address, etc)"),
 867         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 868                     "dump raw trace in ASCII"),
 869         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
 870                    "file", "vmlinux pathname"),
 871         OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
 872         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
 873                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
 874         OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples,
 875                     "Show a column with the number of samples"),
 876         OPT_BOOLEAN('T', "threads", &show_threads,
 877                     "Show per-thread event counters"),
 878         OPT_STRING(0, "pretty", &pretty_printing_style, "key",
 879                    "pretty printing style key: normal raw"),
 880         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 881                    "sort by key(s): pid, comm, dso, symbol, parent"),
 882         OPT_BOOLEAN('P', "full-paths", &full_paths,
 883                     "Don't shorten the pathnames taking into account the cwd"),
 884         OPT_STRING('p', "parent", &parent_pattern, "regex",
 885                    "regex filter to identify parent, see: '--sort parent'"),
 886         OPT_BOOLEAN('x', "exclude-other", &exclude_other,
 887                     "Only display entries with parent-match"),
 888         OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent",
 889                      "Display callchains using output_type and min percent threshold. "
 890                      "Default: fractal,0.5", &parse_callchain_opt, callchain_default_opt),
 891         OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]",
 892                    "only consider symbols in these dsos"),
 893         OPT_STRING('C', "comms", &comm_list_str, "comm[,comm...]",
 894                    "only consider symbols in these comms"),
 895         OPT_STRING('S', "symbols", &sym_list_str, "symbol[,symbol...]",
 896                    "only consider these symbols"),
 897         OPT_STRING('w', "column-widths", &col_width_list_str,
 898                    "width[,width...]",
 899                    "don't try to adjust column width, use these fixed values"),
 900         OPT_STRING('t', "field-separator", &field_sep, "separator",
 901                    "separator for columns, no spaces will be added between "
 902                    "columns '.' is reserved."),
 903         OPT_END()
 904 };
 905
 906 static void setup_sorting(void)
 907 {
 908         char *tmp, *tok, *str = strdup(sort_order);
 909
 910         for (tok = strtok_r(str, ", ", &tmp);
 911                         tok; tok = strtok_r(NULL, ", ", &tmp)) {
 912                 if (sort_dimension__add(tok) < 0) {
 913                         error("Unknown --sort key: `%s'", tok);
 914                         usage_with_options(report_usage, options);
 915                 }
 916         }
 917
 918         free(str);
 919 }
 920
 921 static void setup_list(struct strlist **list, const char *list_str,
 922                        struct sort_entry *se, const char *list_name,
 923                        FILE *fp)
 924 {
 925         if (list_str) {
 926                 *list = strlist__new(true, list_str);
 927                 if (!*list) {
 928                         fprintf(stderr, "problems parsing %s list\n",
 929                                 list_name);
 930                         exit(129);
 931                 }
 932                 if (strlist__nr_entries(*list) == 1) {
 933                         fprintf(fp, "# %s: %s\n", list_name,
 934                                 strlist__entry(*list, 0)->s);
 935                         se->elide = true;
 936                 }
 937         }
 938 }
 939
 940 int cmd_report(int argc, const char **argv, const char *prefix __used)
 941 {
 942         if (symbol__init(&symbol_conf) < 0)
 943                 return -1;
 944
 945         argc = parse_options(argc, argv, options, report_usage, 0);
 946
 947         setup_sorting();
 948
 949         if (parent_pattern != default_parent_pattern) {
 950                 sort_dimension__add("parent");
 951                 sort_parent.elide = 1;
 952         } else
 953                 exclude_other = 0;
 954
 955         /*
 956          * Any (unrecognized) arguments left?
 957          */
 958         if (argc)
 959                 usage_with_options(report_usage, options);
 960
 961         setup_pager();
 962
 963         setup_list(&dso_list, dso_list_str, &sort_dso, "dso", stdout);
 964         setup_list(&comm_list, comm_list_str, &sort_comm, "comm", stdout);
 965         setup_list(&sym_list, sym_list_str, &sort_sym, "symbol", stdout);
 966
 967         if (field_sep && *field_sep == '.') {
 968                 fputs("'.' is the only non valid --field-separator argument\n",
 969                       stderr);
 970                 exit(129);
 971         }
 972
 973         return __cmd_report();
 974 }