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