Pileus Git - ~andy/linux/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 const char              *vmlinux_name;
  56
  57 static char             *cwd;
  58 static int              cwdlen;
  59
  60 static struct perf_header *header;
  61
  62 static u64              sample_type;
  63
  64
  65 static size_t
  66 callchain__fprintf_left_margin(FILE *fp, int left_margin)
  67 {
  68         int i;
  69         int ret;
  70
  71         ret = fprintf(fp, "            ");
  72
  73         for (i = 0; i < left_margin; i++)
  74                 ret += fprintf(fp, " ");
  75
  76         return ret;
  77 }
  78
  79 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
  80                                           int left_margin)
  81 {
  82         int i;
  83         size_t ret = 0;
  84
  85         ret += callchain__fprintf_left_margin(fp, left_margin);
  86
  87         for (i = 0; i < depth; i++)
  88                 if (depth_mask & (1 << i))
  89                         ret += fprintf(fp, "|          ");
  90                 else
  91                         ret += fprintf(fp, "           ");
  92
  93         ret += fprintf(fp, "\n");
  94
  95         return ret;
  96 }
  97 static size_t
  98 ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, int depth,
  99                        int depth_mask, int count, u64 total_samples,
 100                        int hits, int left_margin)
 101 {
 102         int i;
 103         size_t ret = 0;
 104
 105         ret += callchain__fprintf_left_margin(fp, left_margin);
 106         for (i = 0; i < depth; i++) {
 107                 if (depth_mask & (1 << i))
 108                         ret += fprintf(fp, "|");
 109                 else
 110                         ret += fprintf(fp, " ");
 111                 if (!count && i == depth - 1) {
 112                         double percent;
 113
 114                         percent = hits * 100.0 / total_samples;
 115                         ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
 116                 } else
 117                         ret += fprintf(fp, "%s", "          ");
 118         }
 119         if (chain->sym)
 120                 ret += fprintf(fp, "%s\n", chain->sym->name);
 121         else
 122                 ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
 123
 124         return ret;
 125 }
 126
 127 static struct symbol *rem_sq_bracket;
 128 static struct callchain_list rem_hits;
 129
 130 static void init_rem_hits(void)
 131 {
 132         rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
 133         if (!rem_sq_bracket) {
 134                 fprintf(stderr, "Not enough memory to display remaining hits\n");
 135                 return;
 136         }
 137
 138         strcpy(rem_sq_bracket->name, "[...]");
 139         rem_hits.sym = rem_sq_bracket;
 140 }
 141
 142 static size_t
 143 __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 144                            u64 total_samples, int depth, int depth_mask,
 145                            int left_margin)
 146 {
 147         struct rb_node *node, *next;
 148         struct callchain_node *child;
 149         struct callchain_list *chain;
 150         int new_depth_mask = depth_mask;
 151         u64 new_total;
 152         u64 remaining;
 153         size_t ret = 0;
 154         int i;
 155
 156         if (callchain_param.mode == CHAIN_GRAPH_REL)
 157                 new_total = self->children_hit;
 158         else
 159                 new_total = total_samples;
 160
 161         remaining = new_total;
 162
 163         node = rb_first(&self->rb_root);
 164         while (node) {
 165                 u64 cumul;
 166
 167                 child = rb_entry(node, struct callchain_node, rb_node);
 168                 cumul = cumul_hits(child);
 169                 remaining -= cumul;
 170
 171                 /*
 172                  * The depth mask manages the output of pipes that show
 173                  * the depth. We don't want to keep the pipes of the current
 174                  * level for the last child of this depth.
 175                  * Except if we have remaining filtered hits. They will
 176                  * supersede the last child
 177                  */
 178                 next = rb_next(node);
 179                 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
 180                         new_depth_mask &= ~(1 << (depth - 1));
 181
 182                 /*
 183                  * But we keep the older depth mask for the line seperator
 184                  * to keep the level link until we reach the last child
 185                  */
 186                 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
 187                                                    left_margin);
 188                 i = 0;
 189                 list_for_each_entry(chain, &child->val, list) {
 190                         if (chain->ip >= PERF_CONTEXT_MAX)
 191                                 continue;
 192                         ret += ipchain__fprintf_graph(fp, chain, depth,
 193                                                       new_depth_mask, i++,
 194                                                       new_total,
 195                                                       cumul,
 196                                                       left_margin);
 197                 }
 198                 ret += __callchain__fprintf_graph(fp, child, new_total,
 199                                                   depth + 1,
 200                                                   new_depth_mask | (1 << depth),
 201                                                   left_margin);
 202                 node = next;
 203         }
 204
 205         if (callchain_param.mode == CHAIN_GRAPH_REL &&
 206                 remaining && remaining != new_total) {
 207
 208                 if (!rem_sq_bracket)
 209                         return ret;
 210
 211                 new_depth_mask &= ~(1 << (depth - 1));
 212
 213                 ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
 214                                               new_depth_mask, 0, new_total,
 215                                               remaining, left_margin);
 216         }
 217
 218         return ret;
 219 }
 220
 221
 222 static size_t
 223 callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 224                          u64 total_samples, int left_margin)
 225 {
 226         struct callchain_list *chain;
 227         bool printed = false;
 228         int i = 0;
 229         int ret = 0;
 230
 231         list_for_each_entry(chain, &self->val, list) {
 232                 if (chain->ip >= PERF_CONTEXT_MAX)
 233                         continue;
 234
 235                 if (!i++ && sort__first_dimension == SORT_SYM)
 236                         continue;
 237
 238                 if (!printed) {
 239                         ret += callchain__fprintf_left_margin(fp, left_margin);
 240                         ret += fprintf(fp, "|\n");
 241                         ret += callchain__fprintf_left_margin(fp, left_margin);
 242                         ret += fprintf(fp, "---");
 243
 244                         left_margin += 3;
 245                         printed = true;
 246                 } else
 247                         ret += callchain__fprintf_left_margin(fp, left_margin);
 248
 249                 if (chain->sym)
 250                         ret += fprintf(fp, " %s\n", chain->sym->name);
 251                 else
 252                         ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
 253         }
 254
 255         ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin);
 256
 257         return ret;
 258 }
 259
 260 static size_t
 261 callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
 262                         u64 total_samples)
 263 {
 264         struct callchain_list *chain;
 265         size_t ret = 0;
 266
 267         if (!self)
 268                 return 0;
 269
 270         ret += callchain__fprintf_flat(fp, self->parent, total_samples);
 271
 272
 273         list_for_each_entry(chain, &self->val, list) {
 274                 if (chain->ip >= PERF_CONTEXT_MAX)
 275                         continue;
 276                 if (chain->sym)
 277                         ret += fprintf(fp, "                %s\n", chain->sym->name);
 278                 else
 279                         ret += fprintf(fp, "                %p\n",
 280                                         (void *)(long)chain->ip);
 281         }
 282
 283         return ret;
 284 }
 285
 286 static size_t
 287 hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
 288                               u64 total_samples, int left_margin)
 289 {
 290         struct rb_node *rb_node;
 291         struct callchain_node *chain;
 292         size_t ret = 0;
 293
 294         rb_node = rb_first(&self->sorted_chain);
 295         while (rb_node) {
 296                 double percent;
 297
 298                 chain = rb_entry(rb_node, struct callchain_node, rb_node);
 299                 percent = chain->hit * 100.0 / total_samples;
 300                 switch (callchain_param.mode) {
 301                 case CHAIN_FLAT:
 302                         ret += percent_color_fprintf(fp, "           %6.2f%%\n",
 303                                                      percent);
 304                         ret += callchain__fprintf_flat(fp, chain, total_samples);
 305                         break;
 306                 case CHAIN_GRAPH_ABS: /* Falldown */
 307                 case CHAIN_GRAPH_REL:
 308                         ret += callchain__fprintf_graph(fp, chain, total_samples,
 309                                                         left_margin);
 310                 case CHAIN_NONE:
 311                 default:
 312                         break;
 313                 }
 314                 ret += fprintf(fp, "\n");
 315                 rb_node = rb_next(rb_node);
 316         }
 317
 318         return ret;
 319 }
 320
 321 static size_t
 322 hist_entry__fprintf(FILE *fp, struct hist_entry *self, u64 total_samples)
 323 {
 324         struct sort_entry *se;
 325         size_t ret;
 326
 327         if (exclude_other && !self->parent)
 328                 return 0;
 329
 330         if (total_samples)
 331                 ret = percent_color_fprintf(fp,
 332                                             field_sep ? "%.2f" : "   %6.2f%%",
 333                                         (self->count * 100.0) / total_samples);
 334         else
 335                 ret = fprintf(fp, field_sep ? "%lld" : "%12lld ", self->count);
 336
 337         if (show_nr_samples) {
 338                 if (field_sep)
 339                         fprintf(fp, "%c%lld", *field_sep, self->count);
 340                 else
 341                         fprintf(fp, "%11lld", self->count);
 342         }
 343
 344         list_for_each_entry(se, &hist_entry__sort_list, list) {
 345                 if (se->elide)
 346                         continue;
 347
 348                 fprintf(fp, "%s", field_sep ?: "  ");
 349                 ret += se->print(fp, self, se->width ? *se->width : 0);
 350         }
 351
 352         ret += fprintf(fp, "\n");
 353
 354         if (callchain) {
 355                 int left_margin = 0;
 356
 357                 if (sort__first_dimension == SORT_COMM) {
 358                         se = list_first_entry(&hist_entry__sort_list, typeof(*se),
 359                                                 list);
 360                         left_margin = se->width ? *se->width : 0;
 361                         left_margin -= thread__comm_len(self->thread);
 362                 }
 363
 364                 hist_entry_callchain__fprintf(fp, self, total_samples,
 365                                               left_margin);
 366         }
 367
 368         return ret;
 369 }
 370
 371 /*
 372  *
 373  */
 374
 375 static void dso__calc_col_width(struct dso *self)
 376 {
 377         if (!col_width_list_str && !field_sep &&
 378             (!dso_list || strlist__has_entry(dso_list, self->name))) {
 379                 unsigned int slen = strlen(self->name);
 380                 if (slen > dsos__col_width)
 381                         dsos__col_width = slen;
 382         }
 383
 384         self->slen_calculated = 1;
 385 }
 386
 387 static void thread__comm_adjust(struct thread *self)
 388 {
 389         char *comm = self->comm;
 390
 391         if (!col_width_list_str && !field_sep &&
 392             (!comm_list || strlist__has_entry(comm_list, comm))) {
 393                 unsigned int slen = strlen(comm);
 394
 395                 if (slen > comms__col_width) {
 396                         comms__col_width = slen;
 397                         threads__col_width = slen + 6;
 398                 }
 399         }
 400 }
 401
 402 static int thread__set_comm_adjust(struct thread *self, const char *comm)
 403 {
 404         int ret = thread__set_comm(self, comm);
 405
 406         if (ret)
 407                 return ret;
 408
 409         thread__comm_adjust(self);
 410
 411         return 0;
 412 }
 413
 414
 415 static struct symbol *
 416 resolve_symbol(struct thread *thread, struct map **mapp, u64 *ipp)
 417 {
 418         struct map *map = mapp ? *mapp : NULL;
 419         u64 ip = *ipp;
 420
 421         if (map)
 422                 goto got_map;
 423
 424         if (!thread)
 425                 return NULL;
 426
 427         map = thread__find_map(thread, ip);
 428         if (map != NULL) {
 429                 /*
 430                  * We have to do this here as we may have a dso
 431                  * with no symbol hit that has a name longer than
 432                  * the ones with symbols sampled.
 433                  */
 434                 if (!sort_dso.elide && !map->dso->slen_calculated)
 435                         dso__calc_col_width(map->dso);
 436
 437                 if (mapp)
 438                         *mapp = map;
 439 got_map:
 440                 ip = map->map_ip(map, ip);
 441         } else {
 442                 /*
 443                  * If this is outside of all known maps,
 444                  * and is a negative address, try to look it
 445                  * up in the kernel dso, as it might be a
 446                  * vsyscall or vdso (which executes in user-mode).
 447                  *
 448                  * XXX This is nasty, we should have a symbol list in
 449                  * the "[vdso]" dso, but for now lets use the old
 450                  * trick of looking in the whole kernel symbol list.
 451                  */
 452                 if ((long long)ip < 0)
 453                         return kernel_maps__find_symbol(ip, mapp, NULL);
 454         }
 455         dump_printf(" ...... dso: %s\n",
 456                     map ? map->dso->long_name : "<not found>");
 457         dump_printf(" ...... map: %Lx -> %Lx\n", *ipp, ip);
 458         *ipp  = ip;
 459
 460         return map ? map__find_symbol(map, ip, NULL) : NULL;
 461 }
 462
 463 static int call__match(struct symbol *sym)
 464 {
 465         if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0))
 466                 return 1;
 467
 468         return 0;
 469 }
 470
 471 static struct symbol **resolve_callchain(struct thread *thread,
 472                                          struct ip_callchain *chain,
 473                                          struct symbol **parent)
 474 {
 475         u64 context = PERF_CONTEXT_MAX;
 476         struct symbol **syms = NULL;
 477         unsigned int i;
 478
 479         if (callchain) {
 480                 syms = calloc(chain->nr, sizeof(*syms));
 481                 if (!syms) {
 482                         fprintf(stderr, "Can't allocate memory for symbols\n");
 483                         exit(-1);
 484                 }
 485         }
 486
 487         for (i = 0; i < chain->nr; i++) {
 488                 u64 ip = chain->ips[i];
 489                 struct symbol *sym = NULL;
 490
 491                 if (ip >= PERF_CONTEXT_MAX) {
 492                         context = ip;
 493                         continue;
 494                 }
 495
 496                 switch (context) {
 497                 case PERF_CONTEXT_HV:
 498                         break;
 499                 case PERF_CONTEXT_KERNEL:
 500                         sym = kernel_maps__find_symbol(ip, NULL, NULL);
 501                         break;
 502                 default:
 503                         sym = resolve_symbol(thread, NULL, &ip);
 504                         break;
 505                 }
 506
 507                 if (sym) {
 508                         if (sort__has_parent && !*parent && call__match(sym))
 509                                 *parent = sym;
 510                         if (!callchain)
 511                                 break;
 512                         syms[i] = sym;
 513                 }
 514         }
 515
 516         return syms;
 517 }
 518
 519 /*
 520  * collect histogram counts
 521  */
 522
 523 static int
 524 hist_entry__add(struct thread *thread, struct map *map,
 525                 struct symbol *sym, u64 ip, struct ip_callchain *chain,
 526                 char level, u64 count)
 527 {
 528         struct symbol **syms = NULL, *parent = NULL;
 529         bool hit;
 530         struct hist_entry *he;
 531
 532         if ((sort__has_parent || callchain) && chain)
 533                 syms = resolve_callchain(thread, chain, &parent);
 534
 535         he = __hist_entry__add(thread, map, sym, parent,
 536                                ip, count, level, &hit);
 537         if (he == NULL)
 538                 return -ENOMEM;
 539
 540         if (hit)
 541                 he->count += count;
 542
 543         if (callchain) {
 544                 if (!hit)
 545                         callchain_init(&he->callchain);
 546                 append_chain(&he->callchain, chain, syms);
 547                 free(syms);
 548         }
 549
 550         return 0;
 551 }
 552
 553 static size_t output__fprintf(FILE *fp, u64 total_samples)
 554 {
 555         struct hist_entry *pos;
 556         struct sort_entry *se;
 557         struct rb_node *nd;
 558         size_t ret = 0;
 559         unsigned int width;
 560         char *col_width = col_width_list_str;
 561         int raw_printing_style;
 562
 563         raw_printing_style = !strcmp(pretty_printing_style, "raw");
 564
 565         init_rem_hits();
 566
 567         fprintf(fp, "# Samples: %Ld\n", (u64)total_samples);
 568         fprintf(fp, "#\n");
 569
 570         fprintf(fp, "# Overhead");
 571         if (show_nr_samples) {
 572                 if (field_sep)
 573                         fprintf(fp, "%cSamples", *field_sep);
 574                 else
 575                         fputs("  Samples  ", fp);
 576         }
 577         list_for_each_entry(se, &hist_entry__sort_list, list) {
 578                 if (se->elide)
 579                         continue;
 580                 if (field_sep) {
 581                         fprintf(fp, "%c%s", *field_sep, se->header);
 582                         continue;
 583                 }
 584                 width = strlen(se->header);
 585                 if (se->width) {
 586                         if (col_width_list_str) {
 587                                 if (col_width) {
 588                                         *se->width = atoi(col_width);
 589                                         col_width = strchr(col_width, ',');
 590                                         if (col_width)
 591                                                 ++col_width;
 592                                 }
 593                         }
 594                         width = *se->width = max(*se->width, width);
 595                 }
 596                 fprintf(fp, "  %*s", width, se->header);
 597         }
 598         fprintf(fp, "\n");
 599
 600         if (field_sep)
 601                 goto print_entries;
 602
 603         fprintf(fp, "# ........");
 604         if (show_nr_samples)
 605                 fprintf(fp, " ..........");
 606         list_for_each_entry(se, &hist_entry__sort_list, list) {
 607                 unsigned int i;
 608
 609                 if (se->elide)
 610                         continue;
 611
 612                 fprintf(fp, "  ");
 613                 if (se->width)
 614                         width = *se->width;
 615                 else
 616                         width = strlen(se->header);
 617                 for (i = 0; i < width; i++)
 618                         fprintf(fp, ".");
 619         }
 620         fprintf(fp, "\n");
 621
 622         fprintf(fp, "#\n");
 623
 624 print_entries:
 625         for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
 626                 pos = rb_entry(nd, struct hist_entry, rb_node);
 627                 ret += hist_entry__fprintf(fp, pos, total_samples);
 628         }
 629
 630         if (sort_order == default_sort_order &&
 631                         parent_pattern == default_parent_pattern) {
 632                 fprintf(fp, "#\n");
 633                 fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n");
 634                 fprintf(fp, "#\n");
 635         }
 636         fprintf(fp, "\n");
 637
 638         free(rem_sq_bracket);
 639
 640         if (show_threads)
 641                 perf_read_values_display(fp, &show_threads_values,
 642                                          raw_printing_style);
 643
 644         return ret;
 645 }
 646
 647 static int validate_chain(struct ip_callchain *chain, event_t *event)
 648 {
 649         unsigned int chain_size;
 650
 651         chain_size = event->header.size;
 652         chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event;
 653
 654         if (chain->nr*sizeof(u64) > chain_size)
 655                 return -1;
 656
 657         return 0;
 658 }
 659
 660 static int
 661 process_sample_event(event_t *event, unsigned long offset, unsigned long head)
 662 {
 663         char level;
 664         struct symbol *sym = NULL;
 665         u64 ip = event->ip.ip;
 666         u64 period = 1;
 667         struct map *map = NULL;
 668         void *more_data = event->ip.__more_data;
 669         struct ip_callchain *chain = NULL;
 670         int cpumode;
 671         struct thread *thread = threads__findnew(event->ip.pid);
 672
 673         if (sample_type & PERF_SAMPLE_PERIOD) {
 674                 period = *(u64 *)more_data;
 675                 more_data += sizeof(u64);
 676         }
 677
 678         dump_printf("%p [%p]: PERF_RECORD_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n",
 679                 (void *)(offset + head),
 680                 (void *)(long)(event->header.size),
 681                 event->header.misc,
 682                 event->ip.pid, event->ip.tid,
 683                 (void *)(long)ip,
 684                 (long long)period);
 685
 686         if (sample_type & PERF_SAMPLE_CALLCHAIN) {
 687                 unsigned int i;
 688
 689                 chain = (void *)more_data;
 690
 691                 dump_printf("... chain: nr:%Lu\n", chain->nr);
 692
 693                 if (validate_chain(chain, event) < 0) {
 694                         pr_debug("call-chain problem with event, "
 695                                  "skipping it.\n");
 696                         return 0;
 697                 }
 698
 699                 if (dump_trace) {
 700                         for (i = 0; i < chain->nr; i++)
 701                                 dump_printf("..... %2d: %016Lx\n", i, chain->ips[i]);
 702                 }
 703         }
 704
 705         if (thread == NULL) {
 706                 pr_debug("problem processing %d event, skipping it.\n",
 707                         event->header.type);
 708                 return -1;
 709         }
 710
 711         dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
 712
 713         if (comm_list && !strlist__has_entry(comm_list, thread->comm))
 714                 return 0;
 715
 716         cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 717
 718         if (cpumode == PERF_RECORD_MISC_KERNEL) {
 719                 level = 'k';
 720                 sym = kernel_maps__find_symbol(ip, &map, NULL);
 721                 dump_printf(" ...... dso: %s\n",
 722                             map ? map->dso->long_name : "<not found>");
 723         } else if (cpumode == PERF_RECORD_MISC_USER) {
 724                 level = '.';
 725                 sym = resolve_symbol(thread, &map, &ip);
 726
 727         } else {
 728                 level = 'H';
 729                 dump_printf(" ...... dso: [hypervisor]\n");
 730         }
 731
 732         if (dso_list &&
 733             (!map || !map->dso ||
 734              !(strlist__has_entry(dso_list, map->dso->short_name) ||
 735                (map->dso->short_name != map->dso->long_name &&
 736                 strlist__has_entry(dso_list, map->dso->long_name)))))
 737                 return 0;
 738
 739         if (sym_list && sym && !strlist__has_entry(sym_list, sym->name))
 740                 return 0;
 741
 742         if (hist_entry__add(thread, map, sym, ip,
 743                             chain, level, period)) {
 744                 pr_debug("problem incrementing symbol count, skipping event\n");
 745                 return -1;
 746         }
 747
 748         total += period;
 749
 750         return 0;
 751 }
 752
 753 static int
 754 process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
 755 {
 756         struct map *map = map__new(&event->mmap, cwd, cwdlen);
 757         struct thread *thread = threads__findnew(event->mmap.pid);
 758
 759         dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
 760                 (void *)(offset + head),
 761                 (void *)(long)(event->header.size),
 762                 event->mmap.pid,
 763                 event->mmap.tid,
 764                 (void *)(long)event->mmap.start,
 765                 (void *)(long)event->mmap.len,
 766                 (void *)(long)event->mmap.pgoff,
 767                 event->mmap.filename);
 768
 769         if (thread == NULL || map == NULL) {
 770                 dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
 771                 return 0;
 772         }
 773
 774         thread__insert_map(thread, map);
 775         total_mmap++;
 776
 777         return 0;
 778 }
 779
 780 static int
 781 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 782 {
 783         struct thread *thread = threads__findnew(event->comm.pid);
 784
 785         dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n",
 786                 (void *)(offset + head),
 787                 (void *)(long)(event->header.size),
 788                 event->comm.comm, event->comm.pid);
 789
 790         if (thread == NULL ||
 791             thread__set_comm_adjust(thread, event->comm.comm)) {
 792                 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
 793                 return -1;
 794         }
 795         total_comm++;
 796
 797         return 0;
 798 }
 799
 800 static int
 801 process_task_event(event_t *event, unsigned long offset, unsigned long head)
 802 {
 803         struct thread *thread = threads__findnew(event->fork.pid);
 804         struct thread *parent = threads__findnew(event->fork.ppid);
 805
 806         dump_printf("%p [%p]: PERF_RECORD_%s: (%d:%d):(%d:%d)\n",
 807                 (void *)(offset + head),
 808                 (void *)(long)(event->header.size),
 809                 event->header.type == PERF_RECORD_FORK ? "FORK" : "EXIT",
 810                 event->fork.pid, event->fork.tid,
 811                 event->fork.ppid, event->fork.ptid);
 812
 813         /*
 814          * A thread clone will have the same PID for both
 815          * parent and child.
 816          */
 817         if (thread == parent)
 818                 return 0;
 819
 820         if (event->header.type == PERF_RECORD_EXIT)
 821                 return 0;
 822
 823         if (!thread || !parent || thread__fork(thread, parent)) {
 824                 dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
 825                 return -1;
 826         }
 827         total_fork++;
 828
 829         return 0;
 830 }
 831
 832 static int
 833 process_lost_event(event_t *event, unsigned long offset, unsigned long head)
 834 {
 835         dump_printf("%p [%p]: PERF_RECORD_LOST: id:%Ld: lost:%Ld\n",
 836                 (void *)(offset + head),
 837                 (void *)(long)(event->header.size),
 838                 event->lost.id,
 839                 event->lost.lost);
 840
 841         total_lost += event->lost.lost;
 842
 843         return 0;
 844 }
 845
 846 static int
 847 process_read_event(event_t *event, unsigned long offset, unsigned long head)
 848 {
 849         struct perf_event_attr *attr;
 850
 851         attr = perf_header__find_attr(event->read.id, header);
 852
 853         if (show_threads) {
 854                 const char *name = attr ? __event_name(attr->type, attr->config)
 855                                    : "unknown";
 856                 perf_read_values_add_value(&show_threads_values,
 857                                            event->read.pid, event->read.tid,
 858                                            event->read.id,
 859                                            name,
 860                                            event->read.value);
 861         }
 862
 863         dump_printf("%p [%p]: PERF_RECORD_READ: %d %d %s %Lu\n",
 864                         (void *)(offset + head),
 865                         (void *)(long)(event->header.size),
 866                         event->read.pid,
 867                         event->read.tid,
 868                         attr ? __event_name(attr->type, attr->config)
 869                              : "FAIL",
 870                         event->read.value);
 871
 872         return 0;
 873 }
 874
 875 static int sample_type_check(u64 type)
 876 {
 877         sample_type = type;
 878
 879         if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 880                 if (sort__has_parent) {
 881                         fprintf(stderr, "selected --sort parent, but no"
 882                                         " callchain data. Did you call"
 883                                         " perf record without -g?\n");
 884                         return -1;
 885                 }
 886                 if (callchain) {
 887                         fprintf(stderr, "selected -g but no callchain data."
 888                                         " Did you call perf record without"
 889                                         " -g?\n");
 890                         return -1;
 891                 }
 892         } else if (callchain_param.mode != CHAIN_NONE && !callchain) {
 893                         callchain = 1;
 894                         if (register_callchain_param(&callchain_param) < 0) {
 895                                 fprintf(stderr, "Can't register callchain"
 896                                                 " params\n");
 897                                 return -1;
 898                         }
 899         }
 900
 901         return 0;
 902 }
 903
 904 static struct perf_file_handler file_handler = {
 905         .process_sample_event   = process_sample_event,
 906         .process_mmap_event     = process_mmap_event,
 907         .process_comm_event     = process_comm_event,
 908         .process_exit_event     = process_task_event,
 909         .process_fork_event     = process_task_event,
 910         .process_lost_event     = process_lost_event,
 911         .process_read_event     = process_read_event,
 912         .sample_type_check      = sample_type_check,
 913 };
 914
 915
 916 static int __cmd_report(void)
 917 {
 918         struct thread *idle;
 919         int ret;
 920
 921         idle = register_idle_thread();
 922         thread__comm_adjust(idle);
 923
 924         if (show_threads)
 925                 perf_read_values_init(&show_threads_values);
 926
 927         register_perf_file_handler(&file_handler);
 928
 929         ret = mmap_dispatch_perf_file(&header, input_name, vmlinux_name,
 930                                       !vmlinux_name, force,
 931                                       full_paths, &cwdlen, &cwd);
 932         if (ret)
 933                 return ret;
 934
 935         dump_printf("      IP events: %10ld\n", total);
 936         dump_printf("    mmap events: %10ld\n", total_mmap);
 937         dump_printf("    comm events: %10ld\n", total_comm);
 938         dump_printf("    fork events: %10ld\n", total_fork);
 939         dump_printf("    lost events: %10ld\n", total_lost);
 940         dump_printf(" unknown events: %10ld\n", file_handler.total_unknown);
 941
 942         if (dump_trace)
 943                 return 0;
 944
 945         if (verbose > 3)
 946                 threads__fprintf(stdout);
 947
 948         if (verbose > 2)
 949                 dsos__fprintf(stdout);
 950
 951         collapse__resort();
 952         output__resort(total);
 953         output__fprintf(stdout, total);
 954
 955         if (show_threads)
 956                 perf_read_values_destroy(&show_threads_values);
 957
 958         return ret;
 959 }
 960
 961 static int
 962 parse_callchain_opt(const struct option *opt __used, const char *arg,
 963                     int unset __used)
 964 {
 965         char *tok;
 966         char *endptr;
 967
 968         callchain = 1;
 969
 970         if (!arg)
 971                 return 0;
 972
 973         tok = strtok((char *)arg, ",");
 974         if (!tok)
 975                 return -1;
 976
 977         /* get the output mode */
 978         if (!strncmp(tok, "graph", strlen(arg)))
 979                 callchain_param.mode = CHAIN_GRAPH_ABS;
 980
 981         else if (!strncmp(tok, "flat", strlen(arg)))
 982                 callchain_param.mode = CHAIN_FLAT;
 983
 984         else if (!strncmp(tok, "fractal", strlen(arg)))
 985                 callchain_param.mode = CHAIN_GRAPH_REL;
 986
 987         else if (!strncmp(tok, "none", strlen(arg))) {
 988                 callchain_param.mode = CHAIN_NONE;
 989                 callchain = 0;
 990
 991                 return 0;
 992         }
 993
 994         else
 995                 return -1;
 996
 997         /* get the min percentage */
 998         tok = strtok(NULL, ",");
 999         if (!tok)
1000                 goto setup;
1001
1002         callchain_param.min_percent = strtod(tok, &endptr);
1003         if (tok == endptr)
1004                 return -1;
1005
1006 setup:
1007         if (register_callchain_param(&callchain_param) < 0) {
1008                 fprintf(stderr, "Can't register callchain params\n");
1009                 return -1;
1010         }
1011         return 0;
1012 }
1013
1014 //static const char * const report_usage[] = {
1015 const char * const report_usage[] = {
1016         "perf report [<options>] <command>",
1017         NULL
1018 };
1019
1020 static const struct option options[] = {
1021         OPT_STRING('i', "input", &input_name, "file",
1022                     "input file name"),
1023         OPT_BOOLEAN('v', "verbose", &verbose,
1024                     "be more verbose (show symbol address, etc)"),
1025         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1026                     "dump raw trace in ASCII"),
1027         OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"),
1028         OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
1029         OPT_BOOLEAN('m', "modules", &use_modules,
1030                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
1031         OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples,
1032                     "Show a column with the number of samples"),
1033         OPT_BOOLEAN('T', "threads", &show_threads,
1034                     "Show per-thread event counters"),
1035         OPT_STRING(0, "pretty", &pretty_printing_style, "key",
1036                    "pretty printing style key: normal raw"),
1037         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1038                    "sort by key(s): pid, comm, dso, symbol, parent"),
1039         OPT_BOOLEAN('P', "full-paths", &full_paths,
1040                     "Don't shorten the pathnames taking into account the cwd"),
1041         OPT_STRING('p', "parent", &parent_pattern, "regex",
1042                    "regex filter to identify parent, see: '--sort parent'"),
1043         OPT_BOOLEAN('x', "exclude-other", &exclude_other,
1044                     "Only display entries with parent-match"),
1045         OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent",
1046                      "Display callchains using output_type and min percent threshold. "
1047                      "Default: fractal,0.5", &parse_callchain_opt, callchain_default_opt),
1048         OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]",
1049                    "only consider symbols in these dsos"),
1050         OPT_STRING('C', "comms", &comm_list_str, "comm[,comm...]",
1051                    "only consider symbols in these comms"),
1052         OPT_STRING('S', "symbols", &sym_list_str, "symbol[,symbol...]",
1053                    "only consider these symbols"),
1054         OPT_STRING('w', "column-widths", &col_width_list_str,
1055                    "width[,width...]",
1056                    "don't try to adjust column width, use these fixed values"),
1057         OPT_STRING('t', "field-separator", &field_sep, "separator",
1058                    "separator for columns, no spaces will be added between "
1059                    "columns '.' is reserved."),
1060         OPT_END()
1061 };
1062
1063 static void setup_sorting(void)
1064 {
1065         char *tmp, *tok, *str = strdup(sort_order);
1066
1067         for (tok = strtok_r(str, ", ", &tmp);
1068                         tok; tok = strtok_r(NULL, ", ", &tmp)) {
1069                 if (sort_dimension__add(tok) < 0) {
1070                         error("Unknown --sort key: `%s'", tok);
1071                         usage_with_options(report_usage, options);
1072                 }
1073         }
1074
1075         free(str);
1076 }
1077
1078 static void setup_list(struct strlist **list, const char *list_str,
1079                        struct sort_entry *se, const char *list_name,
1080                        FILE *fp)
1081 {
1082         if (list_str) {
1083                 *list = strlist__new(true, list_str);
1084                 if (!*list) {
1085                         fprintf(stderr, "problems parsing %s list\n",
1086                                 list_name);
1087                         exit(129);
1088                 }
1089                 if (strlist__nr_entries(*list) == 1) {
1090                         fprintf(fp, "# %s: %s\n", list_name,
1091                                 strlist__entry(*list, 0)->s);
1092                         se->elide = true;
1093                 }
1094         }
1095 }
1096
1097 int cmd_report(int argc, const char **argv, const char *prefix __used)
1098 {
1099         symbol__init(0);
1100
1101         argc = parse_options(argc, argv, options, report_usage, 0);
1102
1103         setup_sorting();
1104
1105         if (parent_pattern != default_parent_pattern) {
1106                 sort_dimension__add("parent");
1107                 sort_parent.elide = 1;
1108         } else
1109                 exclude_other = 0;
1110
1111         /*
1112          * Any (unrecognized) arguments left?
1113          */
1114         if (argc)
1115                 usage_with_options(report_usage, options);
1116
1117         setup_pager();
1118
1119         setup_list(&dso_list, dso_list_str, &sort_dso, "dso", stdout);
1120         setup_list(&comm_list, comm_list_str, &sort_comm, "comm", stdout);
1121         setup_list(&sym_list, sym_list_str, &sort_sym, "symbol", stdout);
1122
1123         if (field_sep && *field_sep == '.') {
1124                 fputs("'.' is the only non valid --field-separator argument\n",
1125                       stderr);
1126                 exit(129);
1127         }
1128
1129         return __cmd_report();
1130 }