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 #include "util/session.h"
  26
  27 #include "util/parse-options.h"
  28 #include "util/parse-events.h"
  29
  30 #include "util/data_map.h"
  31 #include "util/thread.h"
  32 #include "util/sort.h"
  33 #include "util/hist.h"
  34
  35 static char             const *input_name = "perf.data";
  36
  37 static char             *dso_list_str, *comm_list_str, *sym_list_str,
  38                         *col_width_list_str;
  39 static struct strlist   *dso_list, *comm_list, *sym_list;
  40
  41 static int              force;
  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 u64              sample_type;
  57
  58 struct symbol_conf      symbol_conf;
  59
  60
  61 static size_t
  62 callchain__fprintf_left_margin(FILE *fp, int left_margin)
  63 {
  64         int i;
  65         int ret;
  66
  67         ret = fprintf(fp, "            ");
  68
  69         for (i = 0; i < left_margin; i++)
  70                 ret += fprintf(fp, " ");
  71
  72         return ret;
  73 }
  74
  75 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
  76                                           int left_margin)
  77 {
  78         int i;
  79         size_t ret = 0;
  80
  81         ret += callchain__fprintf_left_margin(fp, left_margin);
  82
  83         for (i = 0; i < depth; i++)
  84                 if (depth_mask & (1 << i))
  85                         ret += fprintf(fp, "|          ");
  86                 else
  87                         ret += fprintf(fp, "           ");
  88
  89         ret += fprintf(fp, "\n");
  90
  91         return ret;
  92 }
  93 static size_t
  94 ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, int depth,
  95                        int depth_mask, int count, u64 total_samples,
  96                        int hits, int left_margin)
  97 {
  98         int i;
  99         size_t ret = 0;
 100
 101         ret += callchain__fprintf_left_margin(fp, left_margin);
 102         for (i = 0; i < depth; i++) {
 103                 if (depth_mask & (1 << i))
 104                         ret += fprintf(fp, "|");
 105                 else
 106                         ret += fprintf(fp, " ");
 107                 if (!count && i == depth - 1) {
 108                         double percent;
 109
 110                         percent = hits * 100.0 / total_samples;
 111                         ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
 112                 } else
 113                         ret += fprintf(fp, "%s", "          ");
 114         }
 115         if (chain->sym)
 116                 ret += fprintf(fp, "%s\n", chain->sym->name);
 117         else
 118                 ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
 119
 120         return ret;
 121 }
 122
 123 static struct symbol *rem_sq_bracket;
 124 static struct callchain_list rem_hits;
 125
 126 static void init_rem_hits(void)
 127 {
 128         rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
 129         if (!rem_sq_bracket) {
 130                 fprintf(stderr, "Not enough memory to display remaining hits\n");
 131                 return;
 132         }
 133
 134         strcpy(rem_sq_bracket->name, "[...]");
 135         rem_hits.sym = rem_sq_bracket;
 136 }
 137
 138 static size_t
 139 __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 140                            u64 total_samples, int depth, int depth_mask,
 141                            int left_margin)
 142 {
 143         struct rb_node *node, *next;
 144         struct callchain_node *child;
 145         struct callchain_list *chain;
 146         int new_depth_mask = depth_mask;
 147         u64 new_total;
 148         u64 remaining;
 149         size_t ret = 0;
 150         int i;
 151
 152         if (callchain_param.mode == CHAIN_GRAPH_REL)
 153                 new_total = self->children_hit;
 154         else
 155                 new_total = total_samples;
 156
 157         remaining = new_total;
 158
 159         node = rb_first(&self->rb_root);
 160         while (node) {
 161                 u64 cumul;
 162
 163                 child = rb_entry(node, struct callchain_node, rb_node);
 164                 cumul = cumul_hits(child);
 165                 remaining -= cumul;
 166
 167                 /*
 168                  * The depth mask manages the output of pipes that show
 169                  * the depth. We don't want to keep the pipes of the current
 170                  * level for the last child of this depth.
 171                  * Except if we have remaining filtered hits. They will
 172                  * supersede the last child
 173                  */
 174                 next = rb_next(node);
 175                 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
 176                         new_depth_mask &= ~(1 << (depth - 1));
 177
 178                 /*
 179                  * But we keep the older depth mask for the line seperator
 180                  * to keep the level link until we reach the last child
 181                  */
 182                 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
 183                                                    left_margin);
 184                 i = 0;
 185                 list_for_each_entry(chain, &child->val, list) {
 186                         if (chain->ip >= PERF_CONTEXT_MAX)
 187                                 continue;
 188                         ret += ipchain__fprintf_graph(fp, chain, depth,
 189                                                       new_depth_mask, i++,
 190                                                       new_total,
 191                                                       cumul,
 192                                                       left_margin);
 193                 }
 194                 ret += __callchain__fprintf_graph(fp, child, new_total,
 195                                                   depth + 1,
 196                                                   new_depth_mask | (1 << depth),
 197                                                   left_margin);
 198                 node = next;
 199         }
 200
 201         if (callchain_param.mode == CHAIN_GRAPH_REL &&
 202                 remaining && remaining != new_total) {
 203
 204                 if (!rem_sq_bracket)
 205                         return ret;
 206
 207                 new_depth_mask &= ~(1 << (depth - 1));
 208
 209                 ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
 210                                               new_depth_mask, 0, new_total,
 211                                               remaining, left_margin);
 212         }
 213
 214         return ret;
 215 }
 216
 217
 218 static size_t
 219 callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
 220                          u64 total_samples, int left_margin)
 221 {
 222         struct callchain_list *chain;
 223         bool printed = false;
 224         int i = 0;
 225         int ret = 0;
 226
 227         list_for_each_entry(chain, &self->val, list) {
 228                 if (chain->ip >= PERF_CONTEXT_MAX)
 229                         continue;
 230
 231                 if (!i++ && sort__first_dimension == SORT_SYM)
 232                         continue;
 233
 234                 if (!printed) {
 235                         ret += callchain__fprintf_left_margin(fp, left_margin);
 236                         ret += fprintf(fp, "|\n");
 237                         ret += callchain__fprintf_left_margin(fp, left_margin);
 238                         ret += fprintf(fp, "---");
 239
 240                         left_margin += 3;
 241                         printed = true;
 242                 } else
 243                         ret += callchain__fprintf_left_margin(fp, left_margin);
 244
 245                 if (chain->sym)
 246                         ret += fprintf(fp, " %s\n", chain->sym->name);
 247                 else
 248                         ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
 249         }
 250
 251         ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin);
 252
 253         return ret;
 254 }
 255
 256 static size_t
 257 callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
 258                         u64 total_samples)
 259 {
 260         struct callchain_list *chain;
 261         size_t ret = 0;
 262
 263         if (!self)
 264                 return 0;
 265
 266         ret += callchain__fprintf_flat(fp, self->parent, total_samples);
 267
 268
 269         list_for_each_entry(chain, &self->val, list) {
 270                 if (chain->ip >= PERF_CONTEXT_MAX)
 271                         continue;
 272                 if (chain->sym)
 273                         ret += fprintf(fp, "                %s\n", chain->sym->name);
 274                 else
 275                         ret += fprintf(fp, "                %p\n",
 276                                         (void *)(long)chain->ip);
 277         }
 278
 279         return ret;
 280 }
 281
 282 static size_t
 283 hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
 284                               u64 total_samples, int left_margin)
 285 {
 286         struct rb_node *rb_node;
 287         struct callchain_node *chain;
 288         size_t ret = 0;
 289
 290         rb_node = rb_first(&self->sorted_chain);
 291         while (rb_node) {
 292                 double percent;
 293
 294                 chain = rb_entry(rb_node, struct callchain_node, rb_node);
 295                 percent = chain->hit * 100.0 / total_samples;
 296                 switch (callchain_param.mode) {
 297                 case CHAIN_FLAT:
 298                         ret += percent_color_fprintf(fp, "           %6.2f%%\n",
 299                                                      percent);
 300                         ret += callchain__fprintf_flat(fp, chain, total_samples);
 301                         break;
 302                 case CHAIN_GRAPH_ABS: /* Falldown */
 303                 case CHAIN_GRAPH_REL:
 304                         ret += callchain__fprintf_graph(fp, chain, total_samples,
 305                                                         left_margin);
 306                 case CHAIN_NONE:
 307                 default:
 308                         break;
 309                 }
 310                 ret += fprintf(fp, "\n");
 311                 rb_node = rb_next(rb_node);
 312         }
 313
 314         return ret;
 315 }
 316
 317 static size_t
 318 hist_entry__fprintf(FILE *fp, struct hist_entry *self, u64 total_samples)
 319 {
 320         struct sort_entry *se;
 321         size_t ret;
 322
 323         if (exclude_other && !self->parent)
 324                 return 0;
 325
 326         if (total_samples)
 327                 ret = percent_color_fprintf(fp,
 328                                             field_sep ? "%.2f" : "   %6.2f%%",
 329                                         (self->count * 100.0) / total_samples);
 330         else
 331                 ret = fprintf(fp, field_sep ? "%lld" : "%12lld ", self->count);
 332
 333         if (show_nr_samples) {
 334                 if (field_sep)
 335                         fprintf(fp, "%c%lld", *field_sep, self->count);
 336                 else
 337                         fprintf(fp, "%11lld", self->count);
 338         }
 339
 340         list_for_each_entry(se, &hist_entry__sort_list, list) {
 341                 if (se->elide)
 342                         continue;
 343
 344                 fprintf(fp, "%s", field_sep ?: "  ");
 345                 ret += se->print(fp, self, se->width ? *se->width : 0);
 346         }
 347
 348         ret += fprintf(fp, "\n");
 349
 350         if (callchain) {
 351                 int left_margin = 0;
 352
 353                 if (sort__first_dimension == SORT_COMM) {
 354                         se = list_first_entry(&hist_entry__sort_list, typeof(*se),
 355                                                 list);
 356                         left_margin = se->width ? *se->width : 0;
 357                         left_margin -= thread__comm_len(self->thread);
 358                 }
 359
 360                 hist_entry_callchain__fprintf(fp, self, total_samples,
 361                                               left_margin);
 362         }
 363
 364         return ret;
 365 }
 366
 367 /*
 368  *
 369  */
 370
 371 static void dso__calc_col_width(struct dso *self)
 372 {
 373         if (!col_width_list_str && !field_sep &&
 374             (!dso_list || strlist__has_entry(dso_list, self->name))) {
 375                 unsigned int slen = strlen(self->name);
 376                 if (slen > dsos__col_width)
 377                         dsos__col_width = slen;
 378         }
 379
 380         self->slen_calculated = 1;
 381 }
 382
 383 static void thread__comm_adjust(struct thread *self)
 384 {
 385         char *comm = self->comm;
 386
 387         if (!col_width_list_str && !field_sep &&
 388             (!comm_list || strlist__has_entry(comm_list, comm))) {
 389                 unsigned int slen = strlen(comm);
 390
 391                 if (slen > comms__col_width) {
 392                         comms__col_width = slen;
 393                         threads__col_width = slen + 6;
 394                 }
 395         }
 396 }
 397
 398 static int thread__set_comm_adjust(struct thread *self, const char *comm)
 399 {
 400         int ret = thread__set_comm(self, comm);
 401
 402         if (ret)
 403                 return ret;
 404
 405         thread__comm_adjust(self);
 406
 407         return 0;
 408 }
 409
 410 static int call__match(struct symbol *sym)
 411 {
 412         if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0))
 413                 return 1;
 414
 415         return 0;
 416 }
 417
 418 static struct symbol **resolve_callchain(struct thread *thread,
 419                                          struct ip_callchain *chain,
 420                                          struct symbol **parent)
 421 {
 422         u8 cpumode = PERF_RECORD_MISC_USER;
 423         struct symbol **syms = NULL;
 424         unsigned int i;
 425
 426         if (callchain) {
 427                 syms = calloc(chain->nr, sizeof(*syms));
 428                 if (!syms) {
 429                         fprintf(stderr, "Can't allocate memory for symbols\n");
 430                         exit(-1);
 431                 }
 432         }
 433
 434         for (i = 0; i < chain->nr; i++) {
 435                 u64 ip = chain->ips[i];
 436                 struct addr_location al;
 437
 438                 if (ip >= PERF_CONTEXT_MAX) {
 439                         switch (ip) {
 440                         case PERF_CONTEXT_HV:
 441                                 cpumode = PERF_RECORD_MISC_HYPERVISOR;  break;
 442                         case PERF_CONTEXT_KERNEL:
 443                                 cpumode = PERF_RECORD_MISC_KERNEL;      break;
 444                         case PERF_CONTEXT_USER:
 445                                 cpumode = PERF_RECORD_MISC_USER;        break;
 446                         default:
 447                                 break;
 448                         }
 449                         continue;
 450                 }
 451
 452                 thread__find_addr_location(thread, cpumode, MAP__FUNCTION,
 453                                            ip, &al, NULL);
 454                 if (al.sym != NULL) {
 455                         if (sort__has_parent && !*parent &&
 456                             call__match(al.sym))
 457                                 *parent = al.sym;
 458                         if (!callchain)
 459                                 break;
 460                         syms[i] = al.sym;
 461                 }
 462         }
 463
 464         return syms;
 465 }
 466
 467 /*
 468  * collect histogram counts
 469  */
 470
 471 static int hist_entry__add(struct addr_location *al,
 472                            struct ip_callchain *chain, u64 count)
 473 {
 474         struct symbol **syms = NULL, *parent = NULL;
 475         bool hit;
 476         struct hist_entry *he;
 477
 478         if ((sort__has_parent || callchain) && chain)
 479                 syms = resolve_callchain(al->thread, chain, &parent);
 480
 481         he = __hist_entry__add(al, parent, count, &hit);
 482         if (he == NULL)
 483                 return -ENOMEM;
 484
 485         if (hit)
 486                 he->count += count;
 487
 488         if (callchain) {
 489                 if (!hit)
 490                         callchain_init(&he->callchain);
 491                 append_chain(&he->callchain, chain, syms);
 492                 free(syms);
 493         }
 494
 495         return 0;
 496 }
 497
 498 static size_t output__fprintf(FILE *fp, u64 total_samples)
 499 {
 500         struct hist_entry *pos;
 501         struct sort_entry *se;
 502         struct rb_node *nd;
 503         size_t ret = 0;
 504         unsigned int width;
 505         char *col_width = col_width_list_str;
 506         int raw_printing_style;
 507
 508         raw_printing_style = !strcmp(pretty_printing_style, "raw");
 509
 510         init_rem_hits();
 511
 512         fprintf(fp, "# Samples: %Ld\n", (u64)total_samples);
 513         fprintf(fp, "#\n");
 514
 515         fprintf(fp, "# Overhead");
 516         if (show_nr_samples) {
 517                 if (field_sep)
 518                         fprintf(fp, "%cSamples", *field_sep);
 519                 else
 520                         fputs("  Samples  ", fp);
 521         }
 522         list_for_each_entry(se, &hist_entry__sort_list, list) {
 523                 if (se->elide)
 524                         continue;
 525                 if (field_sep) {
 526                         fprintf(fp, "%c%s", *field_sep, se->header);
 527                         continue;
 528                 }
 529                 width = strlen(se->header);
 530                 if (se->width) {
 531                         if (col_width_list_str) {
 532                                 if (col_width) {
 533                                         *se->width = atoi(col_width);
 534                                         col_width = strchr(col_width, ',');
 535                                         if (col_width)
 536                                                 ++col_width;
 537                                 }
 538                         }
 539                         width = *se->width = max(*se->width, width);
 540                 }
 541                 fprintf(fp, "  %*s", width, se->header);
 542         }
 543         fprintf(fp, "\n");
 544
 545         if (field_sep)
 546                 goto print_entries;
 547
 548         fprintf(fp, "# ........");
 549         if (show_nr_samples)
 550                 fprintf(fp, " ..........");
 551         list_for_each_entry(se, &hist_entry__sort_list, list) {
 552                 unsigned int i;
 553
 554                 if (se->elide)
 555                         continue;
 556
 557                 fprintf(fp, "  ");
 558                 if (se->width)
 559                         width = *se->width;
 560                 else
 561                         width = strlen(se->header);
 562                 for (i = 0; i < width; i++)
 563                         fprintf(fp, ".");
 564         }
 565         fprintf(fp, "\n");
 566
 567         fprintf(fp, "#\n");
 568
 569 print_entries:
 570         for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
 571                 pos = rb_entry(nd, struct hist_entry, rb_node);
 572                 ret += hist_entry__fprintf(fp, pos, total_samples);
 573         }
 574
 575         if (sort_order == default_sort_order &&
 576                         parent_pattern == default_parent_pattern) {
 577                 fprintf(fp, "#\n");
 578                 fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n");
 579                 fprintf(fp, "#\n");
 580         }
 581         fprintf(fp, "\n");
 582
 583         free(rem_sq_bracket);
 584
 585         if (show_threads)
 586                 perf_read_values_display(fp, &show_threads_values,
 587                                          raw_printing_style);
 588
 589         return ret;
 590 }
 591
 592 static int validate_chain(struct ip_callchain *chain, event_t *event)
 593 {
 594         unsigned int chain_size;
 595
 596         chain_size = event->header.size;
 597         chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event;
 598
 599         if (chain->nr*sizeof(u64) > chain_size)
 600                 return -1;
 601
 602         return 0;
 603 }
 604
 605 static int process_sample_event(event_t *event, struct perf_session *session __used)
 606 {
 607         struct sample_data data;
 608         int cpumode;
 609         struct addr_location al;
 610         struct thread *thread;
 611
 612         memset(&data, 0, sizeof(data));
 613         data.period = 1;
 614
 615         event__parse_sample(event, sample_type, &data);
 616
 617         dump_printf("(IP, %d): %d/%d: %p period: %Ld\n",
 618                 event->header.misc,
 619                 data.pid, data.tid,
 620                 (void *)(long)data.ip,
 621                 (long long)data.period);
 622
 623         if (sample_type & PERF_SAMPLE_CALLCHAIN) {
 624                 unsigned int i;
 625
 626                 dump_printf("... chain: nr:%Lu\n", data.callchain->nr);
 627
 628                 if (validate_chain(data.callchain, event) < 0) {
 629                         pr_debug("call-chain problem with event, "
 630                                  "skipping it.\n");
 631                         return 0;
 632                 }
 633
 634                 if (dump_trace) {
 635                         for (i = 0; i < data.callchain->nr; i++)
 636                                 dump_printf("..... %2d: %016Lx\n",
 637                                             i, data.callchain->ips[i]);
 638                 }
 639         }
 640
 641         thread = threads__findnew(data.pid);
 642         if (thread == NULL) {
 643                 pr_debug("problem processing %d event, skipping it.\n",
 644                         event->header.type);
 645                 return -1;
 646         }
 647
 648         dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
 649
 650         if (comm_list && !strlist__has_entry(comm_list, thread->comm))
 651                 return 0;
 652
 653         cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 654
 655         thread__find_addr_location(thread, cpumode,
 656                                    MAP__FUNCTION, data.ip, &al, NULL);
 657         /*
 658          * We have to do this here as we may have a dso with no symbol hit that
 659          * has a name longer than the ones with symbols sampled.
 660          */
 661         if (al.map && !sort_dso.elide && !al.map->dso->slen_calculated)
 662                 dso__calc_col_width(al.map->dso);
 663
 664         if (dso_list &&
 665             (!al.map || !al.map->dso ||
 666              !(strlist__has_entry(dso_list, al.map->dso->short_name) ||
 667                (al.map->dso->short_name != al.map->dso->long_name &&
 668                 strlist__has_entry(dso_list, al.map->dso->long_name)))))
 669                 return 0;
 670
 671         if (sym_list && al.sym && !strlist__has_entry(sym_list, al.sym->name))
 672                 return 0;
 673
 674         if (hist_entry__add(&al, data.callchain, data.period)) {
 675                 pr_debug("problem incrementing symbol count, skipping event\n");
 676                 return -1;
 677         }
 678
 679         event__stats.total += data.period;
 680
 681         return 0;
 682 }
 683
 684 static int process_comm_event(event_t *event, struct perf_session *session __used)
 685 {
 686         struct thread *thread = threads__findnew(event->comm.pid);
 687
 688         dump_printf(": %s:%d\n", event->comm.comm, event->comm.pid);
 689
 690         if (thread == NULL ||
 691             thread__set_comm_adjust(thread, event->comm.comm)) {
 692                 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
 693                 return -1;
 694         }
 695
 696         return 0;
 697 }
 698
 699 static int process_read_event(event_t *event, struct perf_session *session __used)
 700 {
 701         struct perf_event_attr *attr;
 702
 703         attr = perf_header__find_attr(event->read.id, &session->header);
 704
 705         if (show_threads) {
 706                 const char *name = attr ? __event_name(attr->type, attr->config)
 707                                    : "unknown";
 708                 perf_read_values_add_value(&show_threads_values,
 709                                            event->read.pid, event->read.tid,
 710                                            event->read.id,
 711                                            name,
 712                                            event->read.value);
 713         }
 714
 715         dump_printf(": %d %d %s %Lu\n", event->read.pid, event->read.tid,
 716                     attr ? __event_name(attr->type, attr->config) : "FAIL",
 717                     event->read.value);
 718
 719         return 0;
 720 }
 721
 722 static int sample_type_check(u64 type)
 723 {
 724         sample_type = type;
 725
 726         if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 727                 if (sort__has_parent) {
 728                         fprintf(stderr, "selected --sort parent, but no"
 729                                         " callchain data. Did you call"
 730                                         " perf record without -g?\n");
 731                         return -1;
 732                 }
 733                 if (callchain) {
 734                         fprintf(stderr, "selected -g but no callchain data."
 735                                         " Did you call perf record without"
 736                                         " -g?\n");
 737                         return -1;
 738                 }
 739         } else if (callchain_param.mode != CHAIN_NONE && !callchain) {
 740                         callchain = 1;
 741                         if (register_callchain_param(&callchain_param) < 0) {
 742                                 fprintf(stderr, "Can't register callchain"
 743                                                 " params\n");
 744                                 return -1;
 745                         }
 746         }
 747
 748         return 0;
 749 }
 750
 751 static struct perf_file_handler file_handler = {
 752         .process_sample_event   = process_sample_event,
 753         .process_mmap_event     = event__process_mmap,
 754         .process_comm_event     = process_comm_event,
 755         .process_exit_event     = event__process_task,
 756         .process_fork_event     = event__process_task,
 757         .process_lost_event     = event__process_lost,
 758         .process_read_event     = process_read_event,
 759         .sample_type_check      = sample_type_check,
 760 };
 761
 762
 763 static int __cmd_report(void)
 764 {
 765         struct thread *idle;
 766         int ret;
 767         struct perf_session *session;
 768
 769         session = perf_session__new(input_name, O_RDONLY, force);
 770         if (session == NULL)
 771                 return -ENOMEM;
 772
 773         idle = register_idle_thread();
 774         thread__comm_adjust(idle);
 775
 776         if (show_threads)
 777                 perf_read_values_init(&show_threads_values);
 778
 779         register_perf_file_handler(&file_handler);
 780
 781         ret = perf_session__process_events(session, full_paths,
 782                                            &event__cwdlen, &event__cwd);
 783         if (ret)
 784                 goto out_delete;
 785
 786         if (dump_trace) {
 787                 event__print_totals();
 788                 goto out_delete;
 789         }
 790
 791         if (verbose > 3)
 792                 threads__fprintf(stdout);
 793
 794         if (verbose > 2)
 795                 dsos__fprintf(stdout);
 796
 797         collapse__resort();
 798         output__resort(event__stats.total);
 799         output__fprintf(stdout, event__stats.total);
 800
 801         if (show_threads)
 802                 perf_read_values_destroy(&show_threads_values);
 803 out_delete:
 804         perf_session__delete(session);
 805         return ret;
 806 }
 807
 808 static int
 809 parse_callchain_opt(const struct option *opt __used, const char *arg,
 810                     int unset __used)
 811 {
 812         char *tok;
 813         char *endptr;
 814
 815         callchain = 1;
 816
 817         if (!arg)
 818                 return 0;
 819
 820         tok = strtok((char *)arg, ",");
 821         if (!tok)
 822                 return -1;
 823
 824         /* get the output mode */
 825         if (!strncmp(tok, "graph", strlen(arg)))
 826                 callchain_param.mode = CHAIN_GRAPH_ABS;
 827
 828         else if (!strncmp(tok, "flat", strlen(arg)))
 829                 callchain_param.mode = CHAIN_FLAT;
 830
 831         else if (!strncmp(tok, "fractal", strlen(arg)))
 832                 callchain_param.mode = CHAIN_GRAPH_REL;
 833
 834         else if (!strncmp(tok, "none", strlen(arg))) {
 835                 callchain_param.mode = CHAIN_NONE;
 836                 callchain = 0;
 837
 838                 return 0;
 839         }
 840
 841         else
 842                 return -1;
 843
 844         /* get the min percentage */
 845         tok = strtok(NULL, ",");
 846         if (!tok)
 847                 goto setup;
 848
 849         callchain_param.min_percent = strtod(tok, &endptr);
 850         if (tok == endptr)
 851                 return -1;
 852
 853 setup:
 854         if (register_callchain_param(&callchain_param) < 0) {
 855                 fprintf(stderr, "Can't register callchain params\n");
 856                 return -1;
 857         }
 858         return 0;
 859 }
 860
 861 //static const char * const report_usage[] = {
 862 const char * const report_usage[] = {
 863         "perf report [<options>] <command>",
 864         NULL
 865 };
 866
 867 static const struct option options[] = {
 868         OPT_STRING('i', "input", &input_name, "file",
 869                     "input file name"),
 870         OPT_BOOLEAN('v', "verbose", &verbose,
 871                     "be more verbose (show symbol address, etc)"),
 872         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 873                     "dump raw trace in ASCII"),
 874         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
 875                    "file", "vmlinux pathname"),
 876         OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
 877         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
 878                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
 879         OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples,
 880                     "Show a column with the number of samples"),
 881         OPT_BOOLEAN('T', "threads", &show_threads,
 882                     "Show per-thread event counters"),
 883         OPT_STRING(0, "pretty", &pretty_printing_style, "key",
 884                    "pretty printing style key: normal raw"),
 885         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 886                    "sort by key(s): pid, comm, dso, symbol, parent"),
 887         OPT_BOOLEAN('P', "full-paths", &full_paths,
 888                     "Don't shorten the pathnames taking into account the cwd"),
 889         OPT_STRING('p', "parent", &parent_pattern, "regex",
 890                    "regex filter to identify parent, see: '--sort parent'"),
 891         OPT_BOOLEAN('x', "exclude-other", &exclude_other,
 892                     "Only display entries with parent-match"),
 893         OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent",
 894                      "Display callchains using output_type and min percent threshold. "
 895                      "Default: fractal,0.5", &parse_callchain_opt, callchain_default_opt),
 896         OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]",
 897                    "only consider symbols in these dsos"),
 898         OPT_STRING('C', "comms", &comm_list_str, "comm[,comm...]",
 899                    "only consider symbols in these comms"),
 900         OPT_STRING('S', "symbols", &sym_list_str, "symbol[,symbol...]",
 901                    "only consider these symbols"),
 902         OPT_STRING('w', "column-widths", &col_width_list_str,
 903                    "width[,width...]",
 904                    "don't try to adjust column width, use these fixed values"),
 905         OPT_STRING('t', "field-separator", &field_sep, "separator",
 906                    "separator for columns, no spaces will be added between "
 907                    "columns '.' is reserved."),
 908         OPT_END()
 909 };
 910
 911 static void setup_sorting(void)
 912 {
 913         char *tmp, *tok, *str = strdup(sort_order);
 914
 915         for (tok = strtok_r(str, ", ", &tmp);
 916                         tok; tok = strtok_r(NULL, ", ", &tmp)) {
 917                 if (sort_dimension__add(tok) < 0) {
 918                         error("Unknown --sort key: `%s'", tok);
 919                         usage_with_options(report_usage, options);
 920                 }
 921         }
 922
 923         free(str);
 924 }
 925
 926 static void setup_list(struct strlist **list, const char *list_str,
 927                        struct sort_entry *se, const char *list_name,
 928                        FILE *fp)
 929 {
 930         if (list_str) {
 931                 *list = strlist__new(true, list_str);
 932                 if (!*list) {
 933                         fprintf(stderr, "problems parsing %s list\n",
 934                                 list_name);
 935                         exit(129);
 936                 }
 937                 if (strlist__nr_entries(*list) == 1) {
 938                         fprintf(fp, "# %s: %s\n", list_name,
 939                                 strlist__entry(*list, 0)->s);
 940                         se->elide = true;
 941                 }
 942         }
 943 }
 944
 945 int cmd_report(int argc, const char **argv, const char *prefix __used)
 946 {
 947         if (symbol__init(&symbol_conf) < 0)
 948                 return -1;
 949
 950         argc = parse_options(argc, argv, options, report_usage, 0);
 951
 952         setup_sorting();
 953
 954         if (parent_pattern != default_parent_pattern) {
 955                 sort_dimension__add("parent");
 956                 sort_parent.elide = 1;
 957         } else
 958                 exclude_other = 0;
 959
 960         /*
 961          * Any (unrecognized) arguments left?
 962          */
 963         if (argc)
 964                 usage_with_options(report_usage, options);
 965
 966         setup_pager();
 967
 968         setup_list(&dso_list, dso_list_str, &sort_dso, "dso", stdout);
 969         setup_list(&comm_list, comm_list_str, &sort_comm, "comm", stdout);
 970         setup_list(&sym_list, sym_list_str, &sort_sym, "symbol", stdout);
 971
 972         if (field_sep && *field_sep == '.') {
 973                 fputs("'.' is the only non valid --field-separator argument\n",
 974                       stderr);
 975                 exit(129);
 976         }
 977
 978         return __cmd_report();
 979 }