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 static bool             use_modules;
  42
  43 static int              full_paths;
  44 static int              show_nr_samples;
  45
  46 static int              show_threads;
  47 static struct perf_read_values  show_threads_values;
  48
  49 static char             default_pretty_printing_style[] = "normal";
  50 static char             *pretty_printing_style = default_pretty_printing_style;
  51
  52 static int              exclude_other = 1;
  53
  54 static char             callchain_default_opt[] = "fractal,0.5";
  55
  56 static char             *cwd;
  57 static int              cwdlen;
  58
  59 static struct perf_header *header;
  60
  61 static u64              sample_type;
  62
  63
  64 static size_t
  65 callchain__fprintf_left_margin(FILE *fp, int left_margin)
  66 {
  67         int i;
  68         int ret;
  69
  70         ret = fprintf(fp, "            ");
  71
  72         for (i = 0; i < left_margin; i++)
  73                 ret += fprintf(fp, " ");
  74
  75         return ret;
  76 }
  77
  78 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
  79                                           int left_margin)
  80 {
  81         int i;
  82         size_t ret = 0;
  83
  84         ret += callchain__fprintf_left_margin(fp, left_margin);
  85
  86         for (i = 0; i < depth; i++)
  87                 if (depth_mask & (1 << i))
  88                         ret += fprintf(fp, "|          ");
  89                 else
  90                         ret += fprintf(fp, "           ");
  91
  92         ret += fprintf(fp, "\n");
  93
  94         return ret;
  95 }
  96 static size_t
  97 ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, int depth,
  98                        int depth_mask, int count, u64 total_samples,
  99                        int hits, int left_margin)
 100 {
 101         int i;
 102         size_t ret = 0;
 103
 104         ret += callchain__fprintf_left_margin(fp, left_margin);
 105         for (i = 0; i < depth; i++) {
 106                 if (depth_mask & (1 << i))
 107                         ret += fprintf(fp, "|");
 108                 else
 109                         ret += fprintf(fp, " ");
 110                 if (!count && i == depth - 1) {
 111                         double percent;
 112
 113                         percent = hits * 100.0 / total_samples;
 114                         ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
 115                 } else
 116                         ret += fprintf(fp, "%s", "          ");
 117         }
 118         if (chain->sym)
 119                 ret += fprintf(fp, "%s\n", chain->sym->name);
 120         else
 121                 ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
 122
 123         return ret;
 124 }
 125
 126 static struct symbol *rem_sq_bracket;
 127 static struct callchain_list rem_hits;
 128
 129 static void init_rem_hits(void)
 130 {
 131         rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
 132         if (!rem_sq_bracket) {
 133                 fprintf(stderr, "Not enough memory to display remaining hits\n");
 134                 return;
 135         }
 136
 137         strcpy(rem_sq_bracket->name, "[...]");
 138         rem_hits.sym = rem_sq_bracket;
 139 }
 140
 141 static size_t
 142 __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 143                            u64 total_samples, int depth, int depth_mask,
 144                            int left_margin)
 145 {
 146         struct rb_node *node, *next;
 147         struct callchain_node *child;
 148         struct callchain_list *chain;
 149         int new_depth_mask = depth_mask;
 150         u64 new_total;
 151         u64 remaining;
 152         size_t ret = 0;
 153         int i;
 154
 155         if (callchain_param.mode == CHAIN_GRAPH_REL)
 156                 new_total = self->children_hit;
 157         else
 158                 new_total = total_samples;
 159
 160         remaining = new_total;
 161
 162         node = rb_first(&self->rb_root);
 163         while (node) {
 164                 u64 cumul;
 165
 166                 child = rb_entry(node, struct callchain_node, rb_node);
 167                 cumul = cumul_hits(child);
 168                 remaining -= cumul;
 169
 170                 /*
 171                  * The depth mask manages the output of pipes that show
 172                  * the depth. We don't want to keep the pipes of the current
 173                  * level for the last child of this depth.
 174                  * Except if we have remaining filtered hits. They will
 175                  * supersede the last child
 176                  */
 177                 next = rb_next(node);
 178                 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
 179                         new_depth_mask &= ~(1 << (depth - 1));
 180
 181                 /*
 182                  * But we keep the older depth mask for the line seperator
 183                  * to keep the level link until we reach the last child
 184                  */
 185                 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
 186                                                    left_margin);
 187                 i = 0;
 188                 list_for_each_entry(chain, &child->val, list) {
 189                         if (chain->ip >= PERF_CONTEXT_MAX)
 190                                 continue;
 191                         ret += ipchain__fprintf_graph(fp, chain, depth,
 192                                                       new_depth_mask, i++,
 193                                                       new_total,
 194                                                       cumul,
 195                                                       left_margin);
 196                 }
 197                 ret += __callchain__fprintf_graph(fp, child, new_total,
 198                                                   depth + 1,
 199                                                   new_depth_mask | (1 << depth),
 200                                                   left_margin);
 201                 node = next;
 202         }
 203
 204         if (callchain_param.mode == CHAIN_GRAPH_REL &&
 205                 remaining && remaining != new_total) {
 206
 207                 if (!rem_sq_bracket)
 208                         return ret;
 209
 210                 new_depth_mask &= ~(1 << (depth - 1));
 211
 212                 ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
 213                                               new_depth_mask, 0, new_total,
 214                                               remaining, left_margin);
 215         }
 216
 217         return ret;
 218 }
 219
 220
 221 static size_t
 222 callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 223                          u64 total_samples, int left_margin)
 224 {
 225         struct callchain_list *chain;
 226         bool printed = false;
 227         int i = 0;
 228         int ret = 0;
 229
 230         list_for_each_entry(chain, &self->val, list) {
 231                 if (chain->ip >= PERF_CONTEXT_MAX)
 232                         continue;
 233
 234                 if (!i++ && sort__first_dimension == SORT_SYM)
 235                         continue;
 236
 237                 if (!printed) {
 238                         ret += callchain__fprintf_left_margin(fp, left_margin);
 239                         ret += fprintf(fp, "|\n");
 240                         ret += callchain__fprintf_left_margin(fp, left_margin);
 241                         ret += fprintf(fp, "---");
 242
 243                         left_margin += 3;
 244                         printed = true;
 245                 } else
 246                         ret += callchain__fprintf_left_margin(fp, left_margin);
 247
 248                 if (chain->sym)
 249                         ret += fprintf(fp, " %s\n", chain->sym->name);
 250                 else
 251                         ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
 252         }
 253
 254         ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin);
 255
 256         return ret;
 257 }
 258
 259 static size_t
 260 callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
 261                         u64 total_samples)
 262 {
 263         struct callchain_list *chain;
 264         size_t ret = 0;
 265
 266         if (!self)
 267                 return 0;
 268
 269         ret += callchain__fprintf_flat(fp, self->parent, total_samples);
 270
 271
 272         list_for_each_entry(chain, &self->val, list) {
 273                 if (chain->ip >= PERF_CONTEXT_MAX)
 274                         continue;
 275                 if (chain->sym)
 276                         ret += fprintf(fp, "                %s\n", chain->sym->name);
 277                 else
 278                         ret += fprintf(fp, "                %p\n",
 279                                         (void *)(long)chain->ip);
 280         }
 281
 282         return ret;
 283 }
 284
 285 static size_t
 286 hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
 287                               u64 total_samples, int left_margin)
 288 {
 289         struct rb_node *rb_node;
 290         struct callchain_node *chain;
 291         size_t ret = 0;
 292
 293         rb_node = rb_first(&self->sorted_chain);
 294         while (rb_node) {
 295                 double percent;
 296
 297                 chain = rb_entry(rb_node, struct callchain_node, rb_node);
 298                 percent = chain->hit * 100.0 / total_samples;
 299                 switch (callchain_param.mode) {
 300                 case CHAIN_FLAT:
 301                         ret += percent_color_fprintf(fp, "           %6.2f%%\n",
 302                                                      percent);
 303                         ret += callchain__fprintf_flat(fp, chain, total_samples);
 304                         break;
 305                 case CHAIN_GRAPH_ABS: /* Falldown */
 306                 case CHAIN_GRAPH_REL:
 307                         ret += callchain__fprintf_graph(fp, chain, total_samples,
 308                                                         left_margin);
 309                 case CHAIN_NONE:
 310                 default:
 311                         break;
 312                 }
 313                 ret += fprintf(fp, "\n");
 314                 rb_node = rb_next(rb_node);
 315         }
 316
 317         return ret;
 318 }
 319
 320 static size_t
 321 hist_entry__fprintf(FILE *fp, struct hist_entry *self, u64 total_samples)
 322 {
 323         struct sort_entry *se;
 324         size_t ret;
 325
 326         if (exclude_other && !self->parent)
 327                 return 0;
 328
 329         if (total_samples)
 330                 ret = percent_color_fprintf(fp,
 331                                             field_sep ? "%.2f" : "   %6.2f%%",
 332                                         (self->count * 100.0) / total_samples);
 333         else
 334                 ret = fprintf(fp, field_sep ? "%lld" : "%12lld ", self->count);
 335
 336         if (show_nr_samples) {
 337                 if (field_sep)
 338                         fprintf(fp, "%c%lld", *field_sep, self->count);
 339                 else
 340                         fprintf(fp, "%11lld", self->count);
 341         }
 342
 343         list_for_each_entry(se, &hist_entry__sort_list, list) {
 344                 if (se->elide)
 345                         continue;
 346
 347                 fprintf(fp, "%s", field_sep ?: "  ");
 348                 ret += se->print(fp, self, se->width ? *se->width : 0);
 349         }
 350
 351         ret += fprintf(fp, "\n");
 352
 353         if (callchain) {
 354                 int left_margin = 0;
 355
 356                 if (sort__first_dimension == SORT_COMM) {
 357                         se = list_first_entry(&hist_entry__sort_list, typeof(*se),
 358                                                 list);
 359                         left_margin = se->width ? *se->width : 0;
 360                         left_margin -= thread__comm_len(self->thread);
 361                 }
 362
 363                 hist_entry_callchain__fprintf(fp, self, total_samples,
 364                                               left_margin);
 365         }
 366
 367         return ret;
 368 }
 369
 370 /*
 371  *
 372  */
 373
 374 static void dso__calc_col_width(struct dso *self)
 375 {
 376         if (!col_width_list_str && !field_sep &&
 377             (!dso_list || strlist__has_entry(dso_list, self->name))) {
 378                 unsigned int slen = strlen(self->name);
 379                 if (slen > dsos__col_width)
 380                         dsos__col_width = slen;
 381         }
 382
 383         self->slen_calculated = 1;
 384 }
 385
 386 static void thread__comm_adjust(struct thread *self)
 387 {
 388         char *comm = self->comm;
 389
 390         if (!col_width_list_str && !field_sep &&
 391             (!comm_list || strlist__has_entry(comm_list, comm))) {
 392                 unsigned int slen = strlen(comm);
 393
 394                 if (slen > comms__col_width) {
 395                         comms__col_width = slen;
 396                         threads__col_width = slen + 6;
 397                 }
 398         }
 399 }
 400
 401 static int thread__set_comm_adjust(struct thread *self, const char *comm)
 402 {
 403         int ret = thread__set_comm(self, comm);
 404
 405         if (ret)
 406                 return ret;
 407
 408         thread__comm_adjust(self);
 409
 410         return 0;
 411 }
 412
 413
 414 static struct symbol *
 415 resolve_symbol(struct thread *thread, struct map **mapp, u64 *ipp)
 416 {
 417         struct map *map = mapp ? *mapp : NULL;
 418         u64 ip = *ipp;
 419
 420         if (map)
 421                 goto got_map;
 422
 423         if (!thread)
 424                 return NULL;
 425
 426         map = thread__find_map(thread, ip);
 427         if (map != NULL) {
 428                 /*
 429                  * We have to do this here as we may have a dso
 430                  * with no symbol hit that has a name longer than
 431                  * the ones with symbols sampled.
 432                  */
 433                 if (!sort_dso.elide && !map->dso->slen_calculated)
 434                         dso__calc_col_width(map->dso);
 435
 436                 if (mapp)
 437                         *mapp = map;
 438 got_map:
 439                 ip = map->map_ip(map, ip);
 440         } else {
 441                 /*
 442                  * If this is outside of all known maps,
 443                  * and is a negative address, try to look it
 444                  * up in the kernel dso, as it might be a
 445                  * vsyscall or vdso (which executes in user-mode).
 446                  *
 447                  * XXX This is nasty, we should have a symbol list in
 448                  * the "[vdso]" dso, but for now lets use the old
 449                  * trick of looking in the whole kernel symbol list.
 450                  */
 451                 if ((long long)ip < 0)
 452                         return kernel_maps__find_symbol(ip, mapp);
 453         }
 454         dump_printf(" ...... dso: %s\n",
 455                     map ? map->dso->long_name : "<not found>");
 456         dump_printf(" ...... map: %Lx -> %Lx\n", *ipp, ip);
 457         *ipp  = ip;
 458
 459         return map ? map__find_symbol(map, ip, NULL) : NULL;
 460 }
 461
 462 static int call__match(struct symbol *sym)
 463 {
 464         if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0))
 465                 return 1;
 466
 467         return 0;
 468 }
 469
 470 static struct symbol **resolve_callchain(struct thread *thread, struct map *map,
 471                                          struct ip_callchain *chain,
 472                                          struct symbol **parent)
 473 {
 474         u64 context = PERF_CONTEXT_MAX;
 475         struct symbol **syms = NULL;
 476         unsigned int i;
 477
 478         if (callchain) {
 479                 syms = calloc(chain->nr, sizeof(*syms));
 480                 if (!syms) {
 481                         fprintf(stderr, "Can't allocate memory for symbols\n");
 482                         exit(-1);
 483                 }
 484         }
 485
 486         for (i = 0; i < chain->nr; i++) {
 487                 u64 ip = chain->ips[i];
 488                 struct symbol *sym = NULL;
 489
 490                 if (ip >= PERF_CONTEXT_MAX) {
 491                         context = ip;
 492                         continue;
 493                 }
 494
 495                 switch (context) {
 496                 case PERF_CONTEXT_HV:
 497                         break;
 498                 case PERF_CONTEXT_KERNEL:
 499                         sym = kernel_maps__find_symbol(ip, &map);
 500                         break;
 501                 default:
 502                         sym = resolve_symbol(thread, &map, &ip);
 503                         break;
 504                 }
 505
 506                 if (sym) {
 507                         if (sort__has_parent && !*parent && call__match(sym))
 508                                 *parent = sym;
 509                         if (!callchain)
 510                                 break;
 511                         syms[i] = sym;
 512                 }
 513         }
 514
 515         return syms;
 516 }
 517
 518 /*
 519  * collect histogram counts
 520  */
 521
 522 static int
 523 hist_entry__add(struct thread *thread, struct map *map,
 524                 struct symbol *sym, u64 ip, struct ip_callchain *chain,
 525                 char level, u64 count)
 526 {
 527         struct symbol **syms = NULL, *parent = NULL;
 528         bool hit;
 529         struct hist_entry *he;
 530
 531         if ((sort__has_parent || callchain) && chain)
 532                 syms = resolve_callchain(thread, map, chain, &parent);
 533
 534         he = __hist_entry__add(thread, map, sym, parent,
 535                                ip, count, level, &hit);
 536         if (he == NULL)
 537                 return -ENOMEM;
 538
 539         if (hit)
 540                 he->count += count;
 541
 542         if (callchain) {
 543                 if (!hit)
 544                         callchain_init(&he->callchain);
 545                 append_chain(&he->callchain, chain, syms);
 546                 free(syms);
 547         }
 548
 549         return 0;
 550 }
 551
 552 static size_t output__fprintf(FILE *fp, u64 total_samples)
 553 {
 554         struct hist_entry *pos;
 555         struct sort_entry *se;
 556         struct rb_node *nd;
 557         size_t ret = 0;
 558         unsigned int width;
 559         char *col_width = col_width_list_str;
 560         int raw_printing_style;
 561
 562         raw_printing_style = !strcmp(pretty_printing_style, "raw");
 563
 564         init_rem_hits();
 565
 566         fprintf(fp, "# Samples: %Ld\n", (u64)total_samples);
 567         fprintf(fp, "#\n");
 568
 569         fprintf(fp, "# Overhead");
 570         if (show_nr_samples) {
 571                 if (field_sep)
 572                         fprintf(fp, "%cSamples", *field_sep);
 573                 else
 574                         fputs("  Samples  ", fp);
 575         }
 576         list_for_each_entry(se, &hist_entry__sort_list, list) {
 577                 if (se->elide)
 578                         continue;
 579                 if (field_sep) {
 580                         fprintf(fp, "%c%s", *field_sep, se->header);
 581                         continue;
 582                 }
 583                 width = strlen(se->header);
 584                 if (se->width) {
 585                         if (col_width_list_str) {
 586                                 if (col_width) {
 587                                         *se->width = atoi(col_width);
 588                                         col_width = strchr(col_width, ',');
 589                                         if (col_width)
 590                                                 ++col_width;
 591                                 }
 592                         }
 593                         width = *se->width = max(*se->width, width);
 594                 }
 595                 fprintf(fp, "  %*s", width, se->header);
 596         }
 597         fprintf(fp, "\n");
 598
 599         if (field_sep)
 600                 goto print_entries;
 601
 602         fprintf(fp, "# ........");
 603         if (show_nr_samples)
 604                 fprintf(fp, " ..........");
 605         list_for_each_entry(se, &hist_entry__sort_list, list) {
 606                 unsigned int i;
 607
 608                 if (se->elide)
 609                         continue;
 610
 611                 fprintf(fp, "  ");
 612                 if (se->width)
 613                         width = *se->width;
 614                 else
 615                         width = strlen(se->header);
 616                 for (i = 0; i < width; i++)
 617                         fprintf(fp, ".");
 618         }
 619         fprintf(fp, "\n");
 620
 621         fprintf(fp, "#\n");
 622
 623 print_entries:
 624         for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
 625                 pos = rb_entry(nd, struct hist_entry, rb_node);
 626                 ret += hist_entry__fprintf(fp, pos, total_samples);
 627         }
 628
 629         if (sort_order == default_sort_order &&
 630                         parent_pattern == default_parent_pattern) {
 631                 fprintf(fp, "#\n");
 632                 fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n");
 633                 fprintf(fp, "#\n");
 634         }
 635         fprintf(fp, "\n");
 636
 637         free(rem_sq_bracket);
 638
 639         if (show_threads)
 640                 perf_read_values_display(fp, &show_threads_values,
 641                                          raw_printing_style);
 642
 643         return ret;
 644 }
 645
 646 static int validate_chain(struct ip_callchain *chain, event_t *event)
 647 {
 648         unsigned int chain_size;
 649
 650         chain_size = event->header.size;
 651         chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event;
 652
 653         if (chain->nr*sizeof(u64) > chain_size)
 654                 return -1;
 655
 656         return 0;
 657 }
 658
 659 static int
 660 process_sample_event(event_t *event, unsigned long offset, unsigned long head)
 661 {
 662         char level;
 663         struct symbol *sym = NULL;
 664         u64 ip = event->ip.ip;
 665         u64 period = 1;
 666         struct map *map = NULL;
 667         void *more_data = event->ip.__more_data;
 668         struct ip_callchain *chain = NULL;
 669         int cpumode;
 670         struct thread *thread = threads__findnew(event->ip.pid);
 671
 672         if (sample_type & PERF_SAMPLE_PERIOD) {
 673                 period = *(u64 *)more_data;
 674                 more_data += sizeof(u64);
 675         }
 676
 677         dump_printf("%p [%p]: PERF_RECORD_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n",
 678                 (void *)(offset + head),
 679                 (void *)(long)(event->header.size),
 680                 event->header.misc,
 681                 event->ip.pid, event->ip.tid,
 682                 (void *)(long)ip,
 683                 (long long)period);
 684
 685         if (sample_type & PERF_SAMPLE_CALLCHAIN) {
 686                 unsigned int i;
 687
 688                 chain = (void *)more_data;
 689
 690                 dump_printf("... chain: nr:%Lu\n", chain->nr);
 691
 692                 if (validate_chain(chain, event) < 0) {
 693                         pr_debug("call-chain problem with event, "
 694                                  "skipping it.\n");
 695                         return 0;
 696                 }
 697
 698                 if (dump_trace) {
 699                         for (i = 0; i < chain->nr; i++)
 700                                 dump_printf("..... %2d: %016Lx\n", i, chain->ips[i]);
 701                 }
 702         }
 703
 704         if (thread == NULL) {
 705                 pr_debug("problem processing %d event, skipping it.\n",
 706                         event->header.type);
 707                 return -1;
 708         }
 709
 710         dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
 711
 712         if (comm_list && !strlist__has_entry(comm_list, thread->comm))
 713                 return 0;
 714
 715         cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 716
 717         if (cpumode == PERF_RECORD_MISC_KERNEL) {
 718                 level = 'k';
 719                 sym = kernel_maps__find_symbol(ip, &map);
 720                 dump_printf(" ...... dso: %s\n",
 721                             map ? map->dso->long_name : "<not found>");
 722         } else if (cpumode == PERF_RECORD_MISC_USER) {
 723                 level = '.';
 724                 sym = resolve_symbol(thread, &map, &ip);
 725
 726         } else {
 727                 level = 'H';
 728                 dump_printf(" ...... dso: [hypervisor]\n");
 729         }
 730
 731         if (dso_list &&
 732             (!map || !map->dso ||
 733              !(strlist__has_entry(dso_list, map->dso->short_name) ||
 734                (map->dso->short_name != map->dso->long_name &&
 735                 strlist__has_entry(dso_list, map->dso->long_name)))))
 736                 return 0;
 737
 738         if (sym_list && sym && !strlist__has_entry(sym_list, sym->name))
 739                 return 0;
 740
 741         if (hist_entry__add(thread, map, sym, ip,
 742                             chain, level, period)) {
 743                 pr_debug("problem incrementing symbol count, skipping event\n");
 744                 return -1;
 745         }
 746
 747         total += period;
 748
 749         return 0;
 750 }
 751
 752 static int
 753 process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
 754 {
 755         struct map *map = map__new(&event->mmap, cwd, cwdlen);
 756         struct thread *thread = threads__findnew(event->mmap.pid);
 757
 758         dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
 759                 (void *)(offset + head),
 760                 (void *)(long)(event->header.size),
 761                 event->mmap.pid,
 762                 event->mmap.tid,
 763                 (void *)(long)event->mmap.start,
 764                 (void *)(long)event->mmap.len,
 765                 (void *)(long)event->mmap.pgoff,
 766                 event->mmap.filename);
 767
 768         if (thread == NULL || map == NULL) {
 769                 dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
 770                 return 0;
 771         }
 772
 773         thread__insert_map(thread, map);
 774         total_mmap++;
 775
 776         return 0;
 777 }
 778
 779 static int
 780 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 781 {
 782         struct thread *thread = threads__findnew(event->comm.pid);
 783
 784         dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n",
 785                 (void *)(offset + head),
 786                 (void *)(long)(event->header.size),
 787                 event->comm.comm, event->comm.pid);
 788
 789         if (thread == NULL ||
 790             thread__set_comm_adjust(thread, event->comm.comm)) {
 791                 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
 792                 return -1;
 793         }
 794         total_comm++;
 795
 796         return 0;
 797 }
 798
 799 static int
 800 process_task_event(event_t *event, unsigned long offset, unsigned long head)
 801 {
 802         struct thread *thread = threads__findnew(event->fork.pid);
 803         struct thread *parent = threads__findnew(event->fork.ppid);
 804
 805         dump_printf("%p [%p]: PERF_RECORD_%s: (%d:%d):(%d:%d)\n",
 806                 (void *)(offset + head),
 807                 (void *)(long)(event->header.size),
 808                 event->header.type == PERF_RECORD_FORK ? "FORK" : "EXIT",
 809                 event->fork.pid, event->fork.tid,
 810                 event->fork.ppid, event->fork.ptid);
 811
 812         /*
 813          * A thread clone will have the same PID for both
 814          * parent and child.
 815          */
 816         if (thread == parent)
 817                 return 0;
 818
 819         if (event->header.type == PERF_RECORD_EXIT)
 820                 return 0;
 821
 822         if (!thread || !parent || thread__fork(thread, parent)) {
 823                 dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
 824                 return -1;
 825         }
 826         total_fork++;
 827
 828         return 0;
 829 }
 830
 831 static int
 832 process_lost_event(event_t *event, unsigned long offset, unsigned long head)
 833 {
 834         dump_printf("%p [%p]: PERF_RECORD_LOST: id:%Ld: lost:%Ld\n",
 835                 (void *)(offset + head),
 836                 (void *)(long)(event->header.size),
 837                 event->lost.id,
 838                 event->lost.lost);
 839
 840         total_lost += event->lost.lost;
 841
 842         return 0;
 843 }
 844
 845 static int
 846 process_read_event(event_t *event, unsigned long offset, unsigned long head)
 847 {
 848         struct perf_event_attr *attr;
 849
 850         attr = perf_header__find_attr(event->read.id, header);
 851
 852         if (show_threads) {
 853                 const char *name = attr ? __event_name(attr->type, attr->config)
 854                                    : "unknown";
 855                 perf_read_values_add_value(&show_threads_values,
 856                                            event->read.pid, event->read.tid,
 857                                            event->read.id,
 858                                            name,
 859                                            event->read.value);
 860         }
 861
 862         dump_printf("%p [%p]: PERF_RECORD_READ: %d %d %s %Lu\n",
 863                         (void *)(offset + head),
 864                         (void *)(long)(event->header.size),
 865                         event->read.pid,
 866                         event->read.tid,
 867                         attr ? __event_name(attr->type, attr->config)
 868                              : "FAIL",
 869                         event->read.value);
 870
 871         return 0;
 872 }
 873
 874 static int sample_type_check(u64 type)
 875 {
 876         sample_type = type;
 877
 878         if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 879                 if (sort__has_parent) {
 880                         fprintf(stderr, "selected --sort parent, but no"
 881                                         " callchain data. Did you call"
 882                                         " perf record without -g?\n");
 883                         return -1;
 884                 }
 885                 if (callchain) {
 886                         fprintf(stderr, "selected -g but no callchain data."
 887                                         " Did you call perf record without"
 888                                         " -g?\n");
 889                         return -1;
 890                 }
 891         } else if (callchain_param.mode != CHAIN_NONE && !callchain) {
 892                         callchain = 1;
 893                         if (register_callchain_param(&callchain_param) < 0) {
 894                                 fprintf(stderr, "Can't register callchain"
 895                                                 " params\n");
 896                                 return -1;
 897                         }
 898         }
 899
 900         return 0;
 901 }
 902
 903 static struct perf_file_handler file_handler = {
 904         .process_sample_event   = process_sample_event,
 905         .process_mmap_event     = process_mmap_event,
 906         .process_comm_event     = process_comm_event,
 907         .process_exit_event     = process_task_event,
 908         .process_fork_event     = process_task_event,
 909         .process_lost_event     = process_lost_event,
 910         .process_read_event     = process_read_event,
 911         .sample_type_check      = sample_type_check,
 912 };
 913
 914
 915 static int __cmd_report(void)
 916 {
 917         struct thread *idle;
 918         int ret;
 919
 920         idle = register_idle_thread();
 921         thread__comm_adjust(idle);
 922
 923         if (show_threads)
 924                 perf_read_values_init(&show_threads_values);
 925
 926         register_perf_file_handler(&file_handler);
 927
 928         ret = mmap_dispatch_perf_file(&header, input_name, force, full_paths,
 929                                       &cwdlen, &cwd);
 930         if (ret)
 931                 return ret;
 932
 933         dump_printf("      IP events: %10ld\n", total);
 934         dump_printf("    mmap events: %10ld\n", total_mmap);
 935         dump_printf("    comm events: %10ld\n", total_comm);
 936         dump_printf("    fork events: %10ld\n", total_fork);
 937         dump_printf("    lost events: %10ld\n", total_lost);
 938         dump_printf(" unknown events: %10ld\n", file_handler.total_unknown);
 939
 940         if (dump_trace)
 941                 return 0;
 942
 943         if (verbose > 3)
 944                 threads__fprintf(stdout);
 945
 946         if (verbose > 2)
 947                 dsos__fprintf(stdout);
 948
 949         collapse__resort();
 950         output__resort(total);
 951         output__fprintf(stdout, total);
 952
 953         if (show_threads)
 954                 perf_read_values_destroy(&show_threads_values);
 955
 956         return ret;
 957 }
 958
 959 static int
 960 parse_callchain_opt(const struct option *opt __used, const char *arg,
 961                     int unset __used)
 962 {
 963         char *tok;
 964         char *endptr;
 965
 966         callchain = 1;
 967
 968         if (!arg)
 969                 return 0;
 970
 971         tok = strtok((char *)arg, ",");
 972         if (!tok)
 973                 return -1;
 974
 975         /* get the output mode */
 976         if (!strncmp(tok, "graph", strlen(arg)))
 977                 callchain_param.mode = CHAIN_GRAPH_ABS;
 978
 979         else if (!strncmp(tok, "flat", strlen(arg)))
 980                 callchain_param.mode = CHAIN_FLAT;
 981
 982         else if (!strncmp(tok, "fractal", strlen(arg)))
 983                 callchain_param.mode = CHAIN_GRAPH_REL;
 984
 985         else if (!strncmp(tok, "none", strlen(arg))) {
 986                 callchain_param.mode = CHAIN_NONE;
 987                 callchain = 0;
 988
 989                 return 0;
 990         }
 991
 992         else
 993                 return -1;
 994
 995         /* get the min percentage */
 996         tok = strtok(NULL, ",");
 997         if (!tok)
 998                 goto setup;
 999
1000         callchain_param.min_percent = strtod(tok, &endptr);
1001         if (tok == endptr)
1002                 return -1;
1003
1004 setup:
1005         if (register_callchain_param(&callchain_param) < 0) {
1006                 fprintf(stderr, "Can't register callchain params\n");
1007                 return -1;
1008         }
1009         return 0;
1010 }
1011
1012 //static const char * const report_usage[] = {
1013 const char * const report_usage[] = {
1014         "perf report [<options>] <command>",
1015         NULL
1016 };
1017
1018 static const struct option options[] = {
1019         OPT_STRING('i', "input", &input_name, "file",
1020                     "input file name"),
1021         OPT_BOOLEAN('v', "verbose", &verbose,
1022                     "be more verbose (show symbol address, etc)"),
1023         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1024                     "dump raw trace in ASCII"),
1025         OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"),
1026         OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
1027         OPT_BOOLEAN('m', "modules", &use_modules,
1028                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
1029         OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples,
1030                     "Show a column with the number of samples"),
1031         OPT_BOOLEAN('T', "threads", &show_threads,
1032                     "Show per-thread event counters"),
1033         OPT_STRING(0, "pretty", &pretty_printing_style, "key",
1034                    "pretty printing style key: normal raw"),
1035         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1036                    "sort by key(s): pid, comm, dso, symbol, parent"),
1037         OPT_BOOLEAN('P', "full-paths", &full_paths,
1038                     "Don't shorten the pathnames taking into account the cwd"),
1039         OPT_STRING('p', "parent", &parent_pattern, "regex",
1040                    "regex filter to identify parent, see: '--sort parent'"),
1041         OPT_BOOLEAN('x', "exclude-other", &exclude_other,
1042                     "Only display entries with parent-match"),
1043         OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent",
1044                      "Display callchains using output_type and min percent threshold. "
1045                      "Default: fractal,0.5", &parse_callchain_opt, callchain_default_opt),
1046         OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]",
1047                    "only consider symbols in these dsos"),
1048         OPT_STRING('C', "comms", &comm_list_str, "comm[,comm...]",
1049                    "only consider symbols in these comms"),
1050         OPT_STRING('S', "symbols", &sym_list_str, "symbol[,symbol...]",
1051                    "only consider these symbols"),
1052         OPT_STRING('w', "column-widths", &col_width_list_str,
1053                    "width[,width...]",
1054                    "don't try to adjust column width, use these fixed values"),
1055         OPT_STRING('t', "field-separator", &field_sep, "separator",
1056                    "separator for columns, no spaces will be added between "
1057                    "columns '.' is reserved."),
1058         OPT_END()
1059 };
1060
1061 static void setup_sorting(void)
1062 {
1063         char *tmp, *tok, *str = strdup(sort_order);
1064
1065         for (tok = strtok_r(str, ", ", &tmp);
1066                         tok; tok = strtok_r(NULL, ", ", &tmp)) {
1067                 if (sort_dimension__add(tok) < 0) {
1068                         error("Unknown --sort key: `%s'", tok);
1069                         usage_with_options(report_usage, options);
1070                 }
1071         }
1072
1073         free(str);
1074 }
1075
1076 static void setup_list(struct strlist **list, const char *list_str,
1077                        struct sort_entry *se, const char *list_name,
1078                        FILE *fp)
1079 {
1080         if (list_str) {
1081                 *list = strlist__new(true, list_str);
1082                 if (!*list) {
1083                         fprintf(stderr, "problems parsing %s list\n",
1084                                 list_name);
1085                         exit(129);
1086                 }
1087                 if (strlist__nr_entries(*list) == 1) {
1088                         fprintf(fp, "# %s: %s\n", list_name,
1089                                 strlist__entry(*list, 0)->s);
1090                         se->elide = true;
1091                 }
1092         }
1093 }
1094
1095 int cmd_report(int argc, const char **argv, const char *prefix __used)
1096 {
1097         symbol__init(0);
1098
1099         argc = parse_options(argc, argv, options, report_usage, 0);
1100
1101         setup_sorting();
1102
1103         if (parent_pattern != default_parent_pattern) {
1104                 sort_dimension__add("parent");
1105                 sort_parent.elide = 1;
1106         } else
1107                 exclude_other = 0;
1108
1109         /*
1110          * Any (unrecognized) arguments left?
1111          */
1112         if (argc)
1113                 usage_with_options(report_usage, options);
1114
1115         setup_pager();
1116
1117         setup_list(&dso_list, dso_list_str, &sort_dso, "dso", stdout);
1118         setup_list(&comm_list, comm_list_str, &sort_comm, "comm", stdout);
1119         setup_list(&sym_list, sym_list_str, &sort_sym, "symbol", stdout);
1120
1121         if (field_sep && *field_sep == '.') {
1122                 fputs("'.' is the only non valid --field-separator argument\n",
1123                       stderr);
1124                 exit(129);
1125         }
1126
1127         return __cmd_report();
1128 }