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                         .evsel = evsel,
  91                         .sample = &sample,
  92                         .hide_unresolved = false,
  93                 };
  94
  95                 if (symbol_conf.cumulate_callchain)
  96                         iter.ops = &hist_iter_cumulative;
  97                 else
  98                         iter.ops = &hist_iter_normal;
  99
 100                 sample.pid = fake_samples[i].pid;
 101                 sample.tid = fake_samples[i].pid;
 102                 sample.ip = fake_samples[i].ip;
 103                 sample.callchain = (struct ip_callchain *)fake_callchains[i];
 104
 105                 if (perf_event__preprocess_sample(&event, machine, &al,
 106                                                   &sample) < 0)
 107                         goto out;
 108
 109                 if (hist_entry_iter__add(&iter, &al, PERF_MAX_STACK_DEPTH,
 110                                          NULL) < 0) {
 111                         addr_location__put(&al);
 112                         goto out;
 113                 }
 114
 115                 fake_samples[i].thread = al.thread;
 116                 fake_samples[i].map = al.map;
 117                 fake_samples[i].sym = al.sym;
 118         }
 119
 120         return TEST_OK;
 121
 122 out:
 123         pr_debug("Not enough memory for adding a hist entry\n");
 124         return TEST_FAIL;
 125 }
 126
 127 static void del_hist_entries(struct hists *hists)
 128 {
 129         struct hist_entry *he;
 130         struct rb_root *root_in;
 131         struct rb_root *root_out;
 132         struct rb_node *node;
 133
 134         if (sort__need_collapse)
 135                 root_in = &hists->entries_collapsed;
 136         else
 137                 root_in = hists->entries_in;
 138
 139         root_out = &hists->entries;
 140
 141         while (!RB_EMPTY_ROOT(root_out)) {
 142                 node = rb_first(root_out);
 143
 144                 he = rb_entry(node, struct hist_entry, rb_node);
 145                 rb_erase(node, root_out);
 146                 rb_erase(&he->rb_node_in, root_in);
 147                 hist_entry__delete(he);
 148         }
 149 }
 150
 151 typedef int (*test_fn_t)(struct perf_evsel *, struct machine *);
 152
 153 #define COMM(he)  (thread__comm_str(he->thread))
 154 #define DSO(he)   (he->ms.map->dso->short_name)
 155 #define SYM(he)   (he->ms.sym->name)
 156 #define CPU(he)   (he->cpu)
 157 #define PID(he)   (he->thread->tid)
 158 #define DEPTH(he) (he->callchain->max_depth)
 159 #define CDSO(cl)  (cl->ms.map->dso->short_name)
 160 #define CSYM(cl)  (cl->ms.sym->name)
 161
 162 struct result {
 163         u64 children;
 164         u64 self;
 165         const char *comm;
 166         const char *dso;
 167         const char *sym;
 168 };
 169
 170 struct callchain_result {
 171         u64 nr;
 172         struct {
 173                 const char *dso;
 174                 const char *sym;
 175         } node[10];
 176 };
 177
 178 static int do_test(struct hists *hists, struct result *expected, size_t nr_expected,
 179                    struct callchain_result *expected_callchain, size_t nr_callchain)
 180 {
 181         char buf[32];
 182         size_t i, c;
 183         struct hist_entry *he;
 184         struct rb_root *root;
 185         struct rb_node *node;
 186         struct callchain_node *cnode;
 187         struct callchain_list *clist;
 188
 189         /*
 190          * adding and deleting hist entries must be done outside of this
 191          * function since TEST_ASSERT_VAL() returns in case of failure.
 192          */
 193         hists__collapse_resort(hists, NULL);
 194         hists__output_resort(hists, NULL);
 195
 196         if (verbose > 2) {
 197                 pr_info("use callchain: %d, cumulate callchain: %d\n",
 198                         symbol_conf.use_callchain,
 199                         symbol_conf.cumulate_callchain);
 200                 print_hists_out(hists);
 201         }
 202
 203         root = &hists->entries;
 204         for (node = rb_first(root), i = 0;
 205              node && (he = rb_entry(node, struct hist_entry, rb_node));
 206              node = rb_next(node), i++) {
 207                 scnprintf(buf, sizeof(buf), "Invalid hist entry #%zd", i);
 208
 209                 TEST_ASSERT_VAL("Incorrect number of hist entry",
 210                                 i < nr_expected);
 211                 TEST_ASSERT_VAL(buf, he->stat.period == expected[i].self &&
 212                                 !strcmp(COMM(he), expected[i].comm) &&
 213                                 !strcmp(DSO(he), expected[i].dso) &&
 214                                 !strcmp(SYM(he), expected[i].sym));
 215
 216                 if (symbol_conf.cumulate_callchain)
 217                         TEST_ASSERT_VAL(buf, he->stat_acc->period == expected[i].children);
 218
 219                 if (!symbol_conf.use_callchain)
 220                         continue;
 221
 222                 /* check callchain entries */
 223                 root = &he->callchain->node.rb_root;
 224                 cnode = rb_entry(rb_first(root), struct callchain_node, rb_node);
 225
 226                 c = 0;
 227                 list_for_each_entry(clist, &cnode->val, list) {
 228                         scnprintf(buf, sizeof(buf), "Invalid callchain entry #%zd/%zd", i, c);
 229
 230                         TEST_ASSERT_VAL("Incorrect number of callchain entry",
 231                                         c < expected_callchain[i].nr);
 232                         TEST_ASSERT_VAL(buf,
 233                                 !strcmp(CDSO(clist), expected_callchain[i].node[c].dso) &&
 234                                 !strcmp(CSYM(clist), expected_callchain[i].node[c].sym));
 235                         c++;
 236                 }
 237                 /* TODO: handle multiple child nodes properly */
 238                 TEST_ASSERT_VAL("Incorrect number of callchain entry",
 239                                 c <= expected_callchain[i].nr);
 240         }
 241         TEST_ASSERT_VAL("Incorrect number of hist entry",
 242                         i == nr_expected);
 243         TEST_ASSERT_VAL("Incorrect number of callchain entry",
 244                         !symbol_conf.use_callchain || nr_expected == nr_callchain);
 245         return 0;
 246 }
 247
 248 /* NO callchain + NO children */
 249 static int test1(struct perf_evsel *evsel, struct machine *machine)
 250 {
 251         int err;
 252         struct hists *hists = evsel__hists(evsel);
 253         /*
 254          * expected output:
 255          *
 256          * Overhead  Command  Shared Object          Symbol
 257          * ========  =======  =============  ==============
 258          *   20.00%     perf  perf           [.] main
 259          *   10.00%     bash  [kernel]       [k] page_fault
 260          *   10.00%     bash  bash           [.] main
 261          *   10.00%     bash  bash           [.] xmalloc
 262          *   10.00%     perf  [kernel]       [k] page_fault
 263          *   10.00%     perf  [kernel]       [k] schedule
 264          *   10.00%     perf  libc           [.] free
 265          *   10.00%     perf  libc           [.] malloc
 266          *   10.00%     perf  perf           [.] cmd_record
 267          */
 268         struct result expected[] = {
 269                 { 0, 2000, "perf", "perf",     "main" },
 270                 { 0, 1000, "bash", "[kernel]", "page_fault" },
 271                 { 0, 1000, "bash", "bash",     "main" },
 272                 { 0, 1000, "bash", "bash",     "xmalloc" },
 273                 { 0, 1000, "perf", "[kernel]", "page_fault" },
 274                 { 0, 1000, "perf", "[kernel]", "schedule" },
 275                 { 0, 1000, "perf", "libc",     "free" },
 276                 { 0, 1000, "perf", "libc",     "malloc" },
 277                 { 0, 1000, "perf", "perf",     "cmd_record" },
 278         };
 279
 280         symbol_conf.use_callchain = false;
 281         symbol_conf.cumulate_callchain = false;
 282
 283         setup_sorting();
 284         callchain_register_param(&callchain_param);
 285
 286         err = add_hist_entries(hists, machine);
 287         if (err < 0)
 288                 goto out;
 289
 290         err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, 0);
 291
 292 out:
 293         del_hist_entries(hists);
 294         reset_output_field();
 295         return err;
 296 }
 297
 298 /* callcain + NO children */
 299 static int test2(struct perf_evsel *evsel, struct machine *machine)
 300 {
 301         int err;
 302         struct hists *hists = evsel__hists(evsel);
 303         /*
 304          * expected output:
 305          *
 306          * Overhead  Command  Shared Object          Symbol
 307          * ========  =======  =============  ==============
 308          *   20.00%     perf  perf           [.] main
 309          *              |
 310          *              --- main
 311          *
 312          *   10.00%     bash  [kernel]       [k] page_fault
 313          *              |
 314          *              --- page_fault
 315          *                  malloc
 316          *                  main
 317          *
 318          *   10.00%     bash  bash           [.] main
 319          *              |
 320          *              --- main
 321          *
 322          *   10.00%     bash  bash           [.] xmalloc
 323          *              |
 324          *              --- xmalloc
 325          *                  malloc
 326          *                  xmalloc     <--- NOTE: there's a cycle
 327          *                  malloc
 328          *                  xmalloc
 329          *                  main
 330          *
 331          *   10.00%     perf  [kernel]       [k] page_fault
 332          *              |
 333          *              --- page_fault
 334          *                  sys_perf_event_open
 335          *                  run_command
 336          *                  main
 337          *
 338          *   10.00%     perf  [kernel]       [k] schedule
 339          *              |
 340          *              --- schedule
 341          *                  run_command
 342          *                  main
 343          *
 344          *   10.00%     perf  libc           [.] free
 345          *              |
 346          *              --- free
 347          *                  cmd_record
 348          *                  run_command
 349          *                  main
 350          *
 351          *   10.00%     perf  libc           [.] malloc
 352          *              |
 353          *              --- malloc
 354          *                  cmd_record
 355          *                  run_command
 356          *                  main
 357          *
 358          *   10.00%     perf  perf           [.] cmd_record
 359          *              |
 360          *              --- cmd_record
 361          *                  run_command
 362          *                  main
 363          *
 364          */
 365         struct result expected[] = {
 366                 { 0, 2000, "perf", "perf",     "main" },
 367                 { 0, 1000, "bash", "[kernel]", "page_fault" },
 368                 { 0, 1000, "bash", "bash",     "main" },
 369                 { 0, 1000, "bash", "bash",     "xmalloc" },
 370                 { 0, 1000, "perf", "[kernel]", "page_fault" },
 371                 { 0, 1000, "perf", "[kernel]", "schedule" },
 372                 { 0, 1000, "perf", "libc",     "free" },
 373                 { 0, 1000, "perf", "libc",     "malloc" },
 374                 { 0, 1000, "perf", "perf",     "cmd_record" },
 375         };
 376         struct callchain_result expected_callchain[] = {
 377                 {
 378                         1, {    { "perf",     "main" }, },
 379                 },
 380                 {
 381                         3, {    { "[kernel]", "page_fault" },
 382                                 { "libc",     "malloc" },
 383                                 { "bash",     "main" }, },
 384                 },
 385                 {
 386                         1, {    { "bash",     "main" }, },
 387                 },
 388                 {
 389                         6, {    { "bash",     "xmalloc" },
 390                                 { "libc",     "malloc" },
 391                                 { "bash",     "xmalloc" },
 392                                 { "libc",     "malloc" },
 393                                 { "bash",     "xmalloc" },
 394                                 { "bash",     "main" }, },
 395                 },
 396                 {
 397                         4, {    { "[kernel]", "page_fault" },
 398                                 { "[kernel]", "sys_perf_event_open" },
 399                                 { "perf",     "run_command" },
 400                                 { "perf",     "main" }, },
 401                 },
 402                 {
 403                         3, {    { "[kernel]", "schedule" },
 404                                 { "perf",     "run_command" },
 405                                 { "perf",     "main" }, },
 406                 },
 407                 {
 408                         4, {    { "libc",     "free" },
 409                                 { "perf",     "cmd_record" },
 410                                 { "perf",     "run_command" },
 411                                 { "perf",     "main" }, },
 412                 },
 413                 {
 414                         4, {    { "libc",     "malloc" },
 415                                 { "perf",     "cmd_record" },
 416                                 { "perf",     "run_command" },
 417                                 { "perf",     "main" }, },
 418                 },
 419                 {
 420                         3, {    { "perf",     "cmd_record" },
 421                                 { "perf",     "run_command" },
 422                                 { "perf",     "main" }, },
 423                 },
 424         };
 425
 426         symbol_conf.use_callchain = true;
 427         symbol_conf.cumulate_callchain = false;
 428
 429         setup_sorting();
 430         callchain_register_param(&callchain_param);
 431
 432         err = add_hist_entries(hists, machine);
 433         if (err < 0)
 434                 goto out;
 435
 436         err = do_test(hists, expected, ARRAY_SIZE(expected),
 437                       expected_callchain, ARRAY_SIZE(expected_callchain));
 438
 439 out:
 440         del_hist_entries(hists);
 441         reset_output_field();
 442         return err;
 443 }
 444
 445 /* NO callchain + children */
 446 static int test3(struct perf_evsel *evsel, struct machine *machine)
 447 {
 448         int err;
 449         struct hists *hists = evsel__hists(evsel);
 450         /*
 451          * expected output:
 452          *
 453          * Children      Self  Command  Shared Object                   Symbol
 454          * ========  ========  =======  =============  =======================
 455          *   70.00%    20.00%     perf  perf           [.] main
 456          *   50.00%     0.00%     perf  perf           [.] run_command
 457          *   30.00%    10.00%     bash  bash           [.] main
 458          *   30.00%    10.00%     perf  perf           [.] cmd_record
 459          *   20.00%     0.00%     bash  libc           [.] malloc
 460          *   10.00%    10.00%     bash  [kernel]       [k] page_fault
 461          *   10.00%    10.00%     bash  bash           [.] xmalloc
 462          *   10.00%    10.00%     perf  [kernel]       [k] page_fault
 463          *   10.00%    10.00%     perf  libc           [.] malloc
 464          *   10.00%    10.00%     perf  [kernel]       [k] schedule
 465          *   10.00%    10.00%     perf  libc           [.] free
 466          *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
 467          */
 468         struct result expected[] = {
 469                 { 7000, 2000, "perf", "perf",     "main" },
 470                 { 5000,    0, "perf", "perf",     "run_command" },
 471                 { 3000, 1000, "bash", "bash",     "main" },
 472                 { 3000, 1000, "perf", "perf",     "cmd_record" },
 473                 { 2000,    0, "bash", "libc",     "malloc" },
 474                 { 1000, 1000, "bash", "[kernel]", "page_fault" },
 475                 { 1000, 1000, "bash", "bash",     "xmalloc" },
 476                 { 1000, 1000, "perf", "[kernel]", "page_fault" },
 477                 { 1000, 1000, "perf", "[kernel]", "schedule" },
 478                 { 1000, 1000, "perf", "libc",     "free" },
 479                 { 1000, 1000, "perf", "libc",     "malloc" },
 480                 { 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
 481         };
 482
 483         symbol_conf.use_callchain = false;
 484         symbol_conf.cumulate_callchain = true;
 485
 486         setup_sorting();
 487         callchain_register_param(&callchain_param);
 488
 489         err = add_hist_entries(hists, machine);
 490         if (err < 0)
 491                 goto out;
 492
 493         err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, 0);
 494
 495 out:
 496         del_hist_entries(hists);
 497         reset_output_field();
 498         return err;
 499 }
 500
 501 /* callchain + children */
 502 static int test4(struct perf_evsel *evsel, struct machine *machine)
 503 {
 504         int err;
 505         struct hists *hists = evsel__hists(evsel);
 506         /*
 507          * expected output:
 508          *
 509          * Children      Self  Command  Shared Object                   Symbol
 510          * ========  ========  =======  =============  =======================
 511          *   70.00%    20.00%     perf  perf           [.] main
 512          *              |
 513          *              --- main
 514          *
 515          *   50.00%     0.00%     perf  perf           [.] run_command
 516          *              |
 517          *              --- run_command
 518          *                  main
 519          *
 520          *   30.00%    10.00%     bash  bash           [.] main
 521          *              |
 522          *              --- main
 523          *
 524          *   30.00%    10.00%     perf  perf           [.] cmd_record
 525          *              |
 526          *              --- cmd_record
 527          *                  run_command
 528          *                  main
 529          *
 530          *   20.00%     0.00%     bash  libc           [.] malloc
 531          *              |
 532          *              --- malloc
 533          *                 |
 534          *                 |--50.00%-- xmalloc
 535          *                 |           main
 536          *                  --50.00%-- main
 537          *
 538          *   10.00%    10.00%     bash  [kernel]       [k] page_fault
 539          *              |
 540          *              --- page_fault
 541          *                  malloc
 542          *                  main
 543          *
 544          *   10.00%    10.00%     bash  bash           [.] xmalloc
 545          *              |
 546          *              --- xmalloc
 547          *                  malloc
 548          *                  xmalloc     <--- NOTE: there's a cycle
 549          *                  malloc
 550          *                  xmalloc
 551          *                  main
 552          *
 553          *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
 554          *              |
 555          *              --- sys_perf_event_open
 556          *                  run_command
 557          *                  main
 558          *
 559          *   10.00%    10.00%     perf  [kernel]       [k] page_fault
 560          *              |
 561          *              --- page_fault
 562          *                  sys_perf_event_open
 563          *                  run_command
 564          *                  main
 565          *
 566          *   10.00%    10.00%     perf  [kernel]       [k] schedule
 567          *              |
 568          *              --- schedule
 569          *                  run_command
 570          *                  main
 571          *
 572          *   10.00%    10.00%     perf  libc           [.] free
 573          *              |
 574          *              --- free
 575          *                  cmd_record
 576          *                  run_command
 577          *                  main
 578          *
 579          *   10.00%    10.00%     perf  libc           [.] malloc
 580          *              |
 581          *              --- malloc
 582          *                  cmd_record
 583          *                  run_command
 584          *                  main
 585          *
 586          */
 587         struct result expected[] = {
 588                 { 7000, 2000, "perf", "perf",     "main" },
 589                 { 5000,    0, "perf", "perf",     "run_command" },
 590                 { 3000, 1000, "bash", "bash",     "main" },
 591                 { 3000, 1000, "perf", "perf",     "cmd_record" },
 592                 { 2000,    0, "bash", "libc",     "malloc" },
 593                 { 1000, 1000, "bash", "[kernel]", "page_fault" },
 594                 { 1000, 1000, "bash", "bash",     "xmalloc" },
 595                 { 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
 596                 { 1000, 1000, "perf", "[kernel]", "page_fault" },
 597                 { 1000, 1000, "perf", "[kernel]", "schedule" },
 598                 { 1000, 1000, "perf", "libc",     "free" },
 599                 { 1000, 1000, "perf", "libc",     "malloc" },
 600         };
 601         struct callchain_result expected_callchain[] = {
 602                 {
 603                         1, {    { "perf",     "main" }, },
 604                 },
 605                 {
 606                         2, {    { "perf",     "run_command" },
 607                                 { "perf",     "main" }, },
 608                 },
 609                 {
 610                         1, {    { "bash",     "main" }, },
 611                 },
 612                 {
 613                         3, {    { "perf",     "cmd_record" },
 614                                 { "perf",     "run_command" },
 615                                 { "perf",     "main" }, },
 616                 },
 617                 {
 618                         4, {    { "libc",     "malloc" },
 619                                 { "bash",     "xmalloc" },
 620                                 { "bash",     "main" },
 621                                 { "bash",     "main" }, },
 622                 },
 623                 {
 624                         3, {    { "[kernel]", "page_fault" },
 625                                 { "libc",     "malloc" },
 626                                 { "bash",     "main" }, },
 627                 },
 628                 {
 629                         6, {    { "bash",     "xmalloc" },
 630                                 { "libc",     "malloc" },
 631                                 { "bash",     "xmalloc" },
 632                                 { "libc",     "malloc" },
 633                                 { "bash",     "xmalloc" },
 634                                 { "bash",     "main" }, },
 635                 },
 636                 {
 637                         3, {    { "[kernel]", "sys_perf_event_open" },
 638                                 { "perf",     "run_command" },
 639                                 { "perf",     "main" }, },
 640                 },
 641                 {
 642                         4, {    { "[kernel]", "page_fault" },
 643                                 { "[kernel]", "sys_perf_event_open" },
 644                                 { "perf",     "run_command" },
 645                                 { "perf",     "main" }, },
 646                 },
 647                 {
 648                         3, {    { "[kernel]", "schedule" },
 649                                 { "perf",     "run_command" },
 650                                 { "perf",     "main" }, },
 651                 },
 652                 {
 653                         4, {    { "libc",     "free" },
 654                                 { "perf",     "cmd_record" },
 655                                 { "perf",     "run_command" },
 656                                 { "perf",     "main" }, },
 657                 },
 658                 {
 659                         4, {    { "libc",     "malloc" },
 660                                 { "perf",     "cmd_record" },
 661                                 { "perf",     "run_command" },
 662                                 { "perf",     "main" }, },
 663                 },
 664         };
 665
 666         symbol_conf.use_callchain = true;
 667         symbol_conf.cumulate_callchain = true;
 668
 669         setup_sorting();
 670         callchain_register_param(&callchain_param);
 671
 672         err = add_hist_entries(hists, machine);
 673         if (err < 0)
 674                 goto out;
 675
 676         err = do_test(hists, expected, ARRAY_SIZE(expected),
 677                       expected_callchain, ARRAY_SIZE(expected_callchain));
 678
 679 out:
 680         del_hist_entries(hists);
 681         reset_output_field();
 682         return err;
 683 }
 684
 685 int test__hists_cumulate(void)
 686 {
 687         int err = TEST_FAIL;
 688         struct machines machines;
 689         struct machine *machine;
 690         struct perf_evsel *evsel;
 691         struct perf_evlist *evlist = perf_evlist__new();
 692         size_t i;
 693         test_fn_t testcases[] = {
 694                 test1,
 695                 test2,
 696                 test3,
 697                 test4,
 698         };
 699
 700         TEST_ASSERT_VAL("No memory", evlist);
 701
 702         err = parse_events(evlist, "cpu-clock", NULL);
 703         if (err)
 704                 goto out;
 705
 706         machines__init(&machines);
 707
 708         /* setup threads/dso/map/symbols also */
 709         machine = setup_fake_machine(&machines);
 710         if (!machine)
 711                 goto out;
 712
 713         if (verbose > 1)
 714                 machine__fprintf(machine, stderr);
 715
 716         evsel = perf_evlist__first(evlist);
 717
 718         for (i = 0; i < ARRAY_SIZE(testcases); i++) {
 719                 err = testcases[i](evsel, machine);
 720                 if (err < 0)
 721                         break;
 722         }
 723
 724 out:
 725         /* tear down everything */
 726         perf_evlist__delete(evlist);
 727         machines__exit(&machines);
 728
 729         return err;
 730 }