tools/perf/tests/hists_cumulate.c

   1 #include "perf.h"
   2 #include "util/debug.h"
   3 #include "util/symbol.h"
   4 #include "util/sort.h"
   5 #include "util/evsel.h"
   6 #include "util/evlist.h"
   7 #include "util/machine.h"
   8 #include "util/thread.h"
   9 #include "util/parse-events.h"
  10 #include "tests/tests.h"
  11 #include "tests/hists_common.h"
  12
  13 struct sample {
  14         u32 pid;
  15         u64 ip;
  16         struct thread *thread;
  17         struct map *map;
  18         struct symbol *sym;
  19 };
  20
  21 /* For the numbers, see hists_common.c */
  22 static struct sample fake_samples[] = {
  23         /* perf [kernel] schedule() */
  24         { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
  25         /* perf [perf]   main() */
  26         { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
  27         /* perf [perf]   cmd_record() */
  28         { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
  29         /* perf [libc]   malloc() */
  30         { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
  31         /* perf [libc]   free() */
  32         { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
  33         /* perf [perf]   main() */
  34         { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
  35         /* perf [kernel] page_fault() */
  36         { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
  37         /* bash [bash]   main() */
  38         { .pid = FAKE_PID_BASH,  .ip = FAKE_IP_BASH_MAIN, },
  39         /* bash [bash]   xmalloc() */
  40         { .pid = FAKE_PID_BASH,  .ip = FAKE_IP_BASH_XMALLOC, },
  41         /* bash [kernel] page_fault() */
  42         { .pid = FAKE_PID_BASH,  .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
  43 };
  44
  45 /*
  46  * Will be casted to struct ip_callchain which has all 64 bit entries
  47  * of nr and ips[].
  48  */
  49 static u64 fake_callchains[][10] = {
  50         /*   schedule => run_command => main */
  51         { 3, FAKE_IP_KERNEL_SCHEDULE, FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, },
  52         /*   main  */
  53         { 1, FAKE_IP_PERF_MAIN, },
  54         /*   cmd_record => run_command => main */
  55         { 3, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, },
  56         /*   malloc => cmd_record => run_command => main */
  57         { 4, FAKE_IP_LIBC_MALLOC, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND,
  58              FAKE_IP_PERF_MAIN, },
  59         /*   free => cmd_record => run_command => main */
  60         { 4, FAKE_IP_LIBC_FREE, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND,
  61              FAKE_IP_PERF_MAIN, },
  62         /*   main */
  63         { 1, FAKE_IP_PERF_MAIN, },
  64         /*   page_fault => sys_perf_event_open => run_command => main */
  65         { 4, FAKE_IP_KERNEL_PAGE_FAULT, FAKE_IP_KERNEL_SYS_PERF_EVENT_OPEN,
  66              FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, },
  67         /*   main */
  68         { 1, FAKE_IP_BASH_MAIN, },
  69         /*   xmalloc => malloc => xmalloc => malloc => xmalloc => main */
  70         { 6, FAKE_IP_BASH_XMALLOC, FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_XMALLOC,
  71              FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_XMALLOC, FAKE_IP_BASH_MAIN, },
  72         /*   page_fault => malloc => main */
  73         { 3, FAKE_IP_KERNEL_PAGE_FAULT, FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_MAIN, },
  74 };
  75
  76 static int add_hist_entries(struct hists *hists, struct machine *machine)
  77 {
  78         struct addr_location al;
  79         struct perf_evsel *evsel = hists_to_evsel(hists);
  80         struct perf_sample sample = { .period = 1000, };
  81         size_t i;
  82
  83         for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
  84                 const union perf_event event = {
  85                         .header = {
  86                                 .misc = PERF_RECORD_MISC_USER,
  87                         },
  88                 };
  89                 struct hist_entry_iter iter = {
  90                         .hide_unresolved = false,
  91                 };
  92
  93                 if (symbol_conf.cumulate_callchain)
  94                         iter.ops = &hist_iter_cumulative;
  95                 else
  96                         iter.ops = &hist_iter_normal;
  97
  98                 sample.pid = fake_samples[i].pid;
  99                 sample.tid = fake_samples[i].pid;
 100                 sample.ip = fake_samples[i].ip;
 101                 sample.callchain = (struct ip_callchain *)fake_callchains[i];
 102
 103                 if (perf_event__preprocess_sample(&event, machine, &al,
 104                                                   &sample) < 0)
 105                         goto out;
 106
 107                 if (hist_entry_iter__add(&iter, &al, evsel, &sample,
 108                                          PERF_MAX_STACK_DEPTH, NULL) < 0) {
 109                         addr_location__put(&al);
 110                         goto out;
 111                 }
 112
 113                 fake_samples[i].thread = al.thread;
 114                 fake_samples[i].map = al.map;
 115                 fake_samples[i].sym = al.sym;
 116         }
 117
 118         return TEST_OK;
 119
 120 out:
 121         pr_debug("Not enough memory for adding a hist entry\n");
 122         return TEST_FAIL;
 123 }
 124
 125 static void del_hist_entries(struct hists *hists)
 126 {
 127         struct hist_entry *he;
 128         struct rb_root *root_in;
 129         struct rb_root *root_out;
 130         struct rb_node *node;
 131
 132         if (sort__need_collapse)
 133                 root_in = &hists->entries_collapsed;
 134         else
 135                 root_in = hists->entries_in;
 136
 137         root_out = &hists->entries;
 138
 139         while (!RB_EMPTY_ROOT(root_out)) {
 140                 node = rb_first(root_out);
 141
 142                 he = rb_entry(node, struct hist_entry, rb_node);
 143                 rb_erase(node, root_out);
 144                 rb_erase(&he->rb_node_in, root_in);
 145                 hist_entry__delete(he);
 146         }
 147 }
 148
 149 typedef int (*test_fn_t)(struct perf_evsel *, struct machine *);
 150
 151 #define COMM(he)  (thread__comm_str(he->thread))
 152 #define DSO(he)   (he->ms.map->dso->short_name)
 153 #define SYM(he)   (he->ms.sym->name)
 154 #define CPU(he)   (he->cpu)
 155 #define PID(he)   (he->thread->tid)
 156 #define DEPTH(he) (he->callchain->max_depth)
 157 #define CDSO(cl)  (cl->ms.map->dso->short_name)
 158 #define CSYM(cl)  (cl->ms.sym->name)
 159
 160 struct result {
 161         u64 children;
 162         u64 self;
 163         const char *comm;
 164         const char *dso;
 165         const char *sym;
 166 };
 167
 168 struct callchain_result {
 169         u64 nr;
 170         struct {
 171                 const char *dso;
 172                 const char *sym;
 173         } node[10];
 174 };
 175
 176 static int do_test(struct hists *hists, struct result *expected, size_t nr_expected,
 177                    struct callchain_result *expected_callchain, size_t nr_callchain)
 178 {
 179         char buf[32];
 180         size_t i, c;
 181         struct hist_entry *he;
 182         struct rb_root *root;
 183         struct rb_node *node;
 184         struct callchain_node *cnode;
 185         struct callchain_list *clist;
 186
 187         /*
 188          * adding and deleting hist entries must be done outside of this
 189          * function since TEST_ASSERT_VAL() returns in case of failure.
 190          */
 191         hists__collapse_resort(hists, NULL);
 192         hists__output_resort(hists, NULL);
 193
 194         if (verbose > 2) {
 195                 pr_info("use callchain: %d, cumulate callchain: %d\n",
 196                         symbol_conf.use_callchain,
 197                         symbol_conf.cumulate_callchain);
 198                 print_hists_out(hists);
 199         }
 200
 201         root = &hists->entries;
 202         for (node = rb_first(root), i = 0;
 203              node && (he = rb_entry(node, struct hist_entry, rb_node));
 204              node = rb_next(node), i++) {
 205                 scnprintf(buf, sizeof(buf), "Invalid hist entry #%zd", i);
 206
 207                 TEST_ASSERT_VAL("Incorrect number of hist entry",
 208                                 i < nr_expected);
 209                 TEST_ASSERT_VAL(buf, he->stat.period == expected[i].self &&
 210                                 !strcmp(COMM(he), expected[i].comm) &&
 211                                 !strcmp(DSO(he), expected[i].dso) &&
 212                                 !strcmp(SYM(he), expected[i].sym));
 213
 214                 if (symbol_conf.cumulate_callchain)
 215                         TEST_ASSERT_VAL(buf, he->stat_acc->period == expected[i].children);
 216
 217                 if (!symbol_conf.use_callchain)
 218                         continue;
 219
 220                 /* check callchain entries */
 221                 root = &he->callchain->node.rb_root;
 222                 cnode = rb_entry(rb_first(root), struct callchain_node, rb_node);
 223
 224                 c = 0;
 225                 list_for_each_entry(clist, &cnode->val, list) {
 226                         scnprintf(buf, sizeof(buf), "Invalid callchain entry #%zd/%zd", i, c);
 227
 228                         TEST_ASSERT_VAL("Incorrect number of callchain entry",
 229                                         c < expected_callchain[i].nr);
 230                         TEST_ASSERT_VAL(buf,
 231                                 !strcmp(CDSO(clist), expected_callchain[i].node[c].dso) &&
 232                                 !strcmp(CSYM(clist), expected_callchain[i].node[c].sym));
 233                         c++;
 234                 }
 235                 /* TODO: handle multiple child nodes properly */
 236                 TEST_ASSERT_VAL("Incorrect number of callchain entry",
 237                                 c <= expected_callchain[i].nr);
 238         }
 239         TEST_ASSERT_VAL("Incorrect number of hist entry",
 240                         i == nr_expected);
 241         TEST_ASSERT_VAL("Incorrect number of callchain entry",
 242                         !symbol_conf.use_callchain || nr_expected == nr_callchain);
 243         return 0;
 244 }
 245
 246 /* NO callchain + NO children */
 247 static int test1(struct perf_evsel *evsel, struct machine *machine)
 248 {
 249         int err;
 250         struct hists *hists = evsel__hists(evsel);
 251         /*
 252          * expected output:
 253          *
 254          * Overhead  Command  Shared Object          Symbol
 255          * ========  =======  =============  ==============
 256          *   20.00%     perf  perf           [.] main
 257          *   10.00%     bash  [kernel]       [k] page_fault
 258          *   10.00%     bash  bash           [.] main
 259          *   10.00%     bash  bash           [.] xmalloc
 260          *   10.00%     perf  [kernel]       [k] page_fault
 261          *   10.00%     perf  [kernel]       [k] schedule
 262          *   10.00%     perf  libc           [.] free
 263          *   10.00%     perf  libc           [.] malloc
 264          *   10.00%     perf  perf           [.] cmd_record
 265          */
 266         struct result expected[] = {
 267                 { 0, 2000, "perf", "perf",     "main" },
 268                 { 0, 1000, "bash", "[kernel]", "page_fault" },
 269                 { 0, 1000, "bash", "bash",     "main" },
 270                 { 0, 1000, "bash", "bash",     "xmalloc" },
 271                 { 0, 1000, "perf", "[kernel]", "page_fault" },
 272                 { 0, 1000, "perf", "[kernel]", "schedule" },
 273                 { 0, 1000, "perf", "libc",     "free" },
 274                 { 0, 1000, "perf", "libc",     "malloc" },
 275                 { 0, 1000, "perf", "perf",     "cmd_record" },
 276         };
 277
 278         symbol_conf.use_callchain = false;
 279         symbol_conf.cumulate_callchain = false;
 280
 281         setup_sorting();
 282         callchain_register_param(&callchain_param);
 283
 284         err = add_hist_entries(hists, machine);
 285         if (err < 0)
 286                 goto out;
 287
 288         err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, 0);
 289
 290 out:
 291         del_hist_entries(hists);
 292         reset_output_field();
 293         return err;
 294 }
 295
 296 /* callcain + NO children */
 297 static int test2(struct perf_evsel *evsel, struct machine *machine)
 298 {
 299         int err;
 300         struct hists *hists = evsel__hists(evsel);
 301         /*
 302          * expected output:
 303          *
 304          * Overhead  Command  Shared Object          Symbol
 305          * ========  =======  =============  ==============
 306          *   20.00%     perf  perf           [.] main
 307          *              |
 308          *              --- main
 309          *
 310          *   10.00%     bash  [kernel]       [k] page_fault
 311          *              |
 312          *              --- page_fault
 313          *                  malloc
 314          *                  main
 315          *
 316          *   10.00%     bash  bash           [.] main
 317          *              |
 318          *              --- main
 319          *
 320          *   10.00%     bash  bash           [.] xmalloc
 321          *              |
 322          *              --- xmalloc
 323          *                  malloc
 324          *                  xmalloc     <--- NOTE: there's a cycle
 325          *                  malloc
 326          *                  xmalloc
 327          *                  main
 328          *
 329          *   10.00%     perf  [kernel]       [k] page_fault
 330          *              |
 331          *              --- page_fault
 332          *                  sys_perf_event_open
 333          *                  run_command
 334          *                  main
 335          *
 336          *   10.00%     perf  [kernel]       [k] schedule
 337          *              |
 338          *              --- schedule
 339          *                  run_command
 340          *                  main
 341          *
 342          *   10.00%     perf  libc           [.] free
 343          *              |
 344          *              --- free
 345          *                  cmd_record
 346          *                  run_command
 347          *                  main
 348          *
 349          *   10.00%     perf  libc           [.] malloc
 350          *              |
 351          *              --- malloc
 352          *                  cmd_record
 353          *                  run_command
 354          *                  main
 355          *
 356          *   10.00%     perf  perf           [.] cmd_record
 357          *              |
 358          *              --- cmd_record
 359          *                  run_command
 360          *                  main
 361          *
 362          */
 363         struct result expected[] = {
 364                 { 0, 2000, "perf", "perf",     "main" },
 365                 { 0, 1000, "bash", "[kernel]", "page_fault" },
 366                 { 0, 1000, "bash", "bash",     "main" },
 367                 { 0, 1000, "bash", "bash",     "xmalloc" },
 368                 { 0, 1000, "perf", "[kernel]", "page_fault" },
 369                 { 0, 1000, "perf", "[kernel]", "schedule" },
 370                 { 0, 1000, "perf", "libc",     "free" },
 371                 { 0, 1000, "perf", "libc",     "malloc" },
 372                 { 0, 1000, "perf", "perf",     "cmd_record" },
 373         };
 374         struct callchain_result expected_callchain[] = {
 375                 {
 376                         1, {    { "perf",     "main" }, },
 377                 },
 378                 {
 379                         3, {    { "[kernel]", "page_fault" },
 380                                 { "libc",     "malloc" },
 381                                 { "bash",     "main" }, },
 382                 },
 383                 {
 384                         1, {    { "bash",     "main" }, },
 385                 },
 386                 {
 387                         6, {    { "bash",     "xmalloc" },
 388                                 { "libc",     "malloc" },
 389                                 { "bash",     "xmalloc" },
 390                                 { "libc",     "malloc" },
 391                                 { "bash",     "xmalloc" },
 392                                 { "bash",     "main" }, },
 393                 },
 394                 {
 395                         4, {    { "[kernel]", "page_fault" },
 396                                 { "[kernel]", "sys_perf_event_open" },
 397                                 { "perf",     "run_command" },
 398                                 { "perf",     "main" }, },
 399                 },
 400                 {
 401                         3, {    { "[kernel]", "schedule" },
 402                                 { "perf",     "run_command" },
 403                                 { "perf",     "main" }, },
 404                 },
 405                 {
 406                         4, {    { "libc",     "free" },
 407                                 { "perf",     "cmd_record" },
 408                                 { "perf",     "run_command" },
 409                                 { "perf",     "main" }, },
 410                 },
 411                 {
 412                         4, {    { "libc",     "malloc" },
 413                                 { "perf",     "cmd_record" },
 414                                 { "perf",     "run_command" },
 415                                 { "perf",     "main" }, },
 416                 },
 417                 {
 418                         3, {    { "perf",     "cmd_record" },
 419                                 { "perf",     "run_command" },
 420                                 { "perf",     "main" }, },
 421                 },
 422         };
 423
 424         symbol_conf.use_callchain = true;
 425         symbol_conf.cumulate_callchain = false;
 426
 427         setup_sorting();
 428         callchain_register_param(&callchain_param);
 429
 430         err = add_hist_entries(hists, machine);
 431         if (err < 0)
 432                 goto out;
 433
 434         err = do_test(hists, expected, ARRAY_SIZE(expected),
 435                       expected_callchain, ARRAY_SIZE(expected_callchain));
 436
 437 out:
 438         del_hist_entries(hists);
 439         reset_output_field();
 440         return err;
 441 }
 442
 443 /* NO callchain + children */
 444 static int test3(struct perf_evsel *evsel, struct machine *machine)
 445 {
 446         int err;
 447         struct hists *hists = evsel__hists(evsel);
 448         /*
 449          * expected output:
 450          *
 451          * Children      Self  Command  Shared Object                   Symbol
 452          * ========  ========  =======  =============  =======================
 453          *   70.00%    20.00%     perf  perf           [.] main
 454          *   50.00%     0.00%     perf  perf           [.] run_command
 455          *   30.00%    10.00%     bash  bash           [.] main
 456          *   30.00%    10.00%     perf  perf           [.] cmd_record
 457          *   20.00%     0.00%     bash  libc           [.] malloc
 458          *   10.00%    10.00%     bash  [kernel]       [k] page_fault
 459          *   10.00%    10.00%     bash  bash           [.] xmalloc
 460          *   10.00%    10.00%     perf  [kernel]       [k] page_fault
 461          *   10.00%    10.00%     perf  libc           [.] malloc
 462          *   10.00%    10.00%     perf  [kernel]       [k] schedule
 463          *   10.00%    10.00%     perf  libc           [.] free
 464          *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
 465          */
 466         struct result expected[] = {
 467                 { 7000, 2000, "perf", "perf",     "main" },
 468                 { 5000,    0, "perf", "perf",     "run_command" },
 469                 { 3000, 1000, "bash", "bash",     "main" },
 470                 { 3000, 1000, "perf", "perf",     "cmd_record" },
 471                 { 2000,    0, "bash", "libc",     "malloc" },
 472                 { 1000, 1000, "bash", "[kernel]", "page_fault" },
 473                 { 1000, 1000, "bash", "bash",     "xmalloc" },
 474                 { 1000, 1000, "perf", "[kernel]", "page_fault" },
 475                 { 1000, 1000, "perf", "[kernel]", "schedule" },
 476                 { 1000, 1000, "perf", "libc",     "free" },
 477                 { 1000, 1000, "perf", "libc",     "malloc" },
 478                 { 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
 479         };
 480
 481         symbol_conf.use_callchain = false;
 482         symbol_conf.cumulate_callchain = true;
 483
 484         setup_sorting();
 485         callchain_register_param(&callchain_param);
 486
 487         err = add_hist_entries(hists, machine);
 488         if (err < 0)
 489                 goto out;
 490
 491         err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, 0);
 492
 493 out:
 494         del_hist_entries(hists);
 495         reset_output_field();
 496         return err;
 497 }
 498
 499 /* callchain + children */
 500 static int test4(struct perf_evsel *evsel, struct machine *machine)
 501 {
 502         int err;
 503         struct hists *hists = evsel__hists(evsel);
 504         /*
 505          * expected output:
 506          *
 507          * Children      Self  Command  Shared Object                   Symbol
 508          * ========  ========  =======  =============  =======================
 509          *   70.00%    20.00%     perf  perf           [.] main
 510          *              |
 511          *              --- main
 512          *
 513          *   50.00%     0.00%     perf  perf           [.] run_command
 514          *              |
 515          *              --- run_command
 516          *                  main
 517          *
 518          *   30.00%    10.00%     bash  bash           [.] main
 519          *              |
 520          *              --- main
 521          *
 522          *   30.00%    10.00%     perf  perf           [.] cmd_record
 523          *              |
 524          *              --- cmd_record
 525          *                  run_command
 526          *                  main
 527          *
 528          *   20.00%     0.00%     bash  libc           [.] malloc
 529          *              |
 530          *              --- malloc
 531          *                 |
 532          *                 |--50.00%-- xmalloc
 533          *                 |           main
 534          *                  --50.00%-- main
 535          *
 536          *   10.00%    10.00%     bash  [kernel]       [k] page_fault
 537          *              |
 538          *              --- page_fault
 539          *                  malloc
 540          *                  main
 541          *
 542          *   10.00%    10.00%     bash  bash           [.] xmalloc
 543          *              |
 544          *              --- xmalloc
 545          *                  malloc
 546          *                  xmalloc     <--- NOTE: there's a cycle
 547          *                  malloc
 548          *                  xmalloc
 549          *                  main
 550          *
 551          *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
 552          *              |
 553          *              --- sys_perf_event_open
 554          *                  run_command
 555          *                  main
 556          *
 557          *   10.00%    10.00%     perf  [kernel]       [k] page_fault
 558          *              |
 559          *              --- page_fault
 560          *                  sys_perf_event_open
 561          *                  run_command
 562          *                  main
 563          *
 564          *   10.00%    10.00%     perf  [kernel]       [k] schedule
 565          *              |
 566          *              --- schedule
 567          *                  run_command
 568          *                  main
 569          *
 570          *   10.00%    10.00%     perf  libc           [.] free
 571          *              |
 572          *              --- free
 573          *                  cmd_record
 574          *                  run_command
 575          *                  main
 576          *
 577          *   10.00%    10.00%     perf  libc           [.] malloc
 578          *              |
 579          *              --- malloc
 580          *                  cmd_record
 581          *                  run_command
 582          *                  main
 583          *
 584          */
 585         struct result expected[] = {
 586                 { 7000, 2000, "perf", "perf",     "main" },
 587                 { 5000,    0, "perf", "perf",     "run_command" },
 588                 { 3000, 1000, "bash", "bash",     "main" },
 589                 { 3000, 1000, "perf", "perf",     "cmd_record" },
 590                 { 2000,    0, "bash", "libc",     "malloc" },
 591                 { 1000, 1000, "bash", "[kernel]", "page_fault" },
 592                 { 1000, 1000, "bash", "bash",     "xmalloc" },
 593                 { 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
 594                 { 1000, 1000, "perf", "[kernel]", "page_fault" },
 595                 { 1000, 1000, "perf", "[kernel]", "schedule" },
 596                 { 1000, 1000, "perf", "libc",     "free" },
 597                 { 1000, 1000, "perf", "libc",     "malloc" },
 598         };
 599         struct callchain_result expected_callchain[] = {
 600                 {
 601                         1, {    { "perf",     "main" }, },
 602                 },
 603                 {
 604                         2, {    { "perf",     "run_command" },
 605                                 { "perf",     "main" }, },
 606                 },
 607                 {
 608                         1, {    { "bash",     "main" }, },
 609                 },
 610                 {
 611                         3, {    { "perf",     "cmd_record" },
 612                                 { "perf",     "run_command" },
 613                                 { "perf",     "main" }, },
 614                 },
 615                 {
 616                         4, {    { "libc",     "malloc" },
 617                                 { "bash",     "xmalloc" },
 618                                 { "bash",     "main" },
 619                                 { "bash",     "main" }, },
 620                 },
 621                 {
 622                         3, {    { "[kernel]", "page_fault" },
 623                                 { "libc",     "malloc" },
 624                                 { "bash",     "main" }, },
 625                 },
 626                 {
 627                         6, {    { "bash",     "xmalloc" },
 628                                 { "libc",     "malloc" },
 629                                 { "bash",     "xmalloc" },
 630                                 { "libc",     "malloc" },
 631                                 { "bash",     "xmalloc" },
 632                                 { "bash",     "main" }, },
 633                 },
 634                 {
 635                         3, {    { "[kernel]", "sys_perf_event_open" },
 636                                 { "perf",     "run_command" },
 637                                 { "perf",     "main" }, },
 638                 },
 639                 {
 640                         4, {    { "[kernel]", "page_fault" },
 641                                 { "[kernel]", "sys_perf_event_open" },
 642                                 { "perf",     "run_command" },
 643                                 { "perf",     "main" }, },
 644                 },
 645                 {
 646                         3, {    { "[kernel]", "schedule" },
 647                                 { "perf",     "run_command" },
 648                                 { "perf",     "main" }, },
 649                 },
 650                 {
 651                         4, {    { "libc",     "free" },
 652                                 { "perf",     "cmd_record" },
 653                                 { "perf",     "run_command" },
 654                                 { "perf",     "main" }, },
 655                 },
 656                 {
 657                         4, {    { "libc",     "malloc" },
 658                                 { "perf",     "cmd_record" },
 659                                 { "perf",     "run_command" },
 660                                 { "perf",     "main" }, },
 661                 },
 662         };
 663
 664         symbol_conf.use_callchain = true;
 665         symbol_conf.cumulate_callchain = true;
 666
 667         setup_sorting();
 668         callchain_register_param(&callchain_param);
 669
 670         err = add_hist_entries(hists, machine);
 671         if (err < 0)
 672                 goto out;
 673
 674         err = do_test(hists, expected, ARRAY_SIZE(expected),
 675                       expected_callchain, ARRAY_SIZE(expected_callchain));
 676
 677 out:
 678         del_hist_entries(hists);
 679         reset_output_field();
 680         return err;
 681 }
 682
 683 int test__hists_cumulate(void)
 684 {
 685         int err = TEST_FAIL;
 686         struct machines machines;
 687         struct machine *machine;
 688         struct perf_evsel *evsel;
 689         struct perf_evlist *evlist = perf_evlist__new();
 690         size_t i;
 691         test_fn_t testcases[] = {
 692                 test1,
 693                 test2,
 694                 test3,
 695                 test4,
 696         };
 697
 698         TEST_ASSERT_VAL("No memory", evlist);
 699
 700         err = parse_events(evlist, "cpu-clock", NULL);
 701         if (err)
 702                 goto out;
 703
 704         machines__init(&machines);
 705
 706         /* setup threads/dso/map/symbols also */
 707         machine = setup_fake_machine(&machines);
 708         if (!machine)
 709                 goto out;
 710
 711         if (verbose > 1)
 712                 machine__fprintf(machine, stderr);
 713
 714         evsel = perf_evlist__first(evlist);
 715
 716         for (i = 0; i < ARRAY_SIZE(testcases); i++) {
 717                 err = testcases[i](evsel, machine);
 718                 if (err < 0)
 719                         break;
 720         }
 721
 722 out:
 723         /* tear down everything */
 724         perf_evlist__delete(evlist);
 725         machines__exit(&machines);
 726
 727         return err;
 728 }