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                 struct hist_entry_iter iter = {
  85                         .evsel = evsel,
  86                         .sample = &sample,
  87                         .hide_unresolved = false,
  88                 };
  89
  90                 if (symbol_conf.cumulate_callchain)
  91                         iter.ops = &hist_iter_cumulative;
  92                 else
  93                         iter.ops = &hist_iter_normal;
  94
  95                 sample.cpumode = PERF_RECORD_MISC_USER;
  96                 sample.pid = fake_samples[i].pid;
  97                 sample.tid = fake_samples[i].pid;
  98                 sample.ip = fake_samples[i].ip;
  99                 sample.callchain = (struct ip_callchain *)fake_callchains[i];
 100
 101                 if (machine__resolve(machine, &al, &sample) < 0)
 102                         goto out;
 103
 104                 if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack,
 105                                          NULL) < 0) {
 106                         addr_location__put(&al);
 107                         goto out;
 108                 }
 109
 110                 fake_samples[i].thread = al.thread;
 111                 fake_samples[i].map = al.map;
 112                 fake_samples[i].sym = al.sym;
 113         }
 114
 115         return TEST_OK;
 116
 117 out:
 118         pr_debug("Not enough memory for adding a hist entry\n");
 119         return TEST_FAIL;
 120 }
 121
 122 static void del_hist_entries(struct hists *hists)
 123 {
 124         struct hist_entry *he;
 125         struct rb_root *root_in;
 126         struct rb_root *root_out;
 127         struct rb_node *node;
 128
 129         if (hists__has(hists, need_collapse))
 130                 root_in = &hists->entries_collapsed;
 131         else
 132                 root_in = hists->entries_in;
 133
 134         root_out = &hists->entries;
 135
 136         while (!RB_EMPTY_ROOT(root_out)) {
 137                 node = rb_first(root_out);
 138
 139                 he = rb_entry(node, struct hist_entry, rb_node);
 140                 rb_erase(node, root_out);
 141                 rb_erase(&he->rb_node_in, root_in);
 142                 hist_entry__delete(he);
 143         }
 144 }
 145
 146 typedef int (*test_fn_t)(struct perf_evsel *, struct machine *);
 147
 148 #define COMM(he)  (thread__comm_str(he->thread))
 149 #define DSO(he)   (he->ms.map->dso->short_name)
 150 #define SYM(he)   (he->ms.sym->name)
 151 #define CPU(he)   (he->cpu)
 152 #define PID(he)   (he->thread->tid)
 153 #define DEPTH(he) (he->callchain->max_depth)
 154 #define CDSO(cl)  (cl->ms.map->dso->short_name)
 155 #define CSYM(cl)  (cl->ms.sym->name)
 156
 157 struct result {
 158         u64 children;
 159         u64 self;
 160         const char *comm;
 161         const char *dso;
 162         const char *sym;
 163 };
 164
 165 struct callchain_result {
 166         u64 nr;
 167         struct {
 168                 const char *dso;
 169                 const char *sym;
 170         } node[10];
 171 };
 172
 173 static int do_test(struct hists *hists, struct result *expected, size_t nr_expected,
 174                    struct callchain_result *expected_callchain, size_t nr_callchain)
 175 {
 176         char buf[32];
 177         size_t i, c;
 178         struct hist_entry *he;
 179         struct rb_root *root;
 180         struct rb_node *node;
 181         struct callchain_node *cnode;
 182         struct callchain_list *clist;
 183
 184         /*
 185          * adding and deleting hist entries must be done outside of this
 186          * function since TEST_ASSERT_VAL() returns in case of failure.
 187          */
 188         hists__collapse_resort(hists, NULL);
 189         perf_evsel__output_resort(hists_to_evsel(hists), NULL);
 190
 191         if (verbose > 2) {
 192                 pr_info("use callchain: %d, cumulate callchain: %d\n",
 193                         symbol_conf.use_callchain,
 194                         symbol_conf.cumulate_callchain);
 195                 print_hists_out(hists);
 196         }
 197
 198         root = &hists->entries;
 199         for (node = rb_first(root), i = 0;
 200              node && (he = rb_entry(node, struct hist_entry, rb_node));
 201              node = rb_next(node), i++) {
 202                 scnprintf(buf, sizeof(buf), "Invalid hist entry #%zd", i);
 203
 204                 TEST_ASSERT_VAL("Incorrect number of hist entry",
 205                                 i < nr_expected);
 206                 TEST_ASSERT_VAL(buf, he->stat.period == expected[i].self &&
 207                                 !strcmp(COMM(he), expected[i].comm) &&
 208                                 !strcmp(DSO(he), expected[i].dso) &&
 209                                 !strcmp(SYM(he), expected[i].sym));
 210
 211                 if (symbol_conf.cumulate_callchain)
 212                         TEST_ASSERT_VAL(buf, he->stat_acc->period == expected[i].children);
 213
 214                 if (!symbol_conf.use_callchain)
 215                         continue;
 216
 217                 /* check callchain entries */
 218                 root = &he->callchain->node.rb_root;
 219                 cnode = rb_entry(rb_first(root), struct callchain_node, rb_node);
 220
 221                 c = 0;
 222                 list_for_each_entry(clist, &cnode->val, list) {
 223                         scnprintf(buf, sizeof(buf), "Invalid callchain entry #%zd/%zd", i, c);
 224
 225                         TEST_ASSERT_VAL("Incorrect number of callchain entry",
 226                                         c < expected_callchain[i].nr);
 227                         TEST_ASSERT_VAL(buf,
 228                                 !strcmp(CDSO(clist), expected_callchain[i].node[c].dso) &&
 229                                 !strcmp(CSYM(clist), expected_callchain[i].node[c].sym));
 230                         c++;
 231                 }
 232                 /* TODO: handle multiple child nodes properly */
 233                 TEST_ASSERT_VAL("Incorrect number of callchain entry",
 234                                 c <= expected_callchain[i].nr);
 235         }
 236         TEST_ASSERT_VAL("Incorrect number of hist entry",
 237                         i == nr_expected);
 238         TEST_ASSERT_VAL("Incorrect number of callchain entry",
 239                         !symbol_conf.use_callchain || nr_expected == nr_callchain);
 240         return 0;
 241 }
 242
 243 /* NO callchain + NO children */
 244 static int test1(struct perf_evsel *evsel, struct machine *machine)
 245 {
 246         int err;
 247         struct hists *hists = evsel__hists(evsel);
 248         /*
 249          * expected output:
 250          *
 251          * Overhead  Command  Shared Object          Symbol
 252          * ========  =======  =============  ==============
 253          *   20.00%     perf  perf           [.] main
 254          *   10.00%     bash  [kernel]       [k] page_fault
 255          *   10.00%     bash  bash           [.] main
 256          *   10.00%     bash  bash           [.] xmalloc
 257          *   10.00%     perf  [kernel]       [k] page_fault
 258          *   10.00%     perf  [kernel]       [k] schedule
 259          *   10.00%     perf  libc           [.] free
 260          *   10.00%     perf  libc           [.] malloc
 261          *   10.00%     perf  perf           [.] cmd_record
 262          */
 263         struct result expected[] = {
 264                 { 0, 2000, "perf", "perf",     "main" },
 265                 { 0, 1000, "bash", "[kernel]", "page_fault" },
 266                 { 0, 1000, "bash", "bash",     "main" },
 267                 { 0, 1000, "bash", "bash",     "xmalloc" },
 268                 { 0, 1000, "perf", "[kernel]", "page_fault" },
 269                 { 0, 1000, "perf", "[kernel]", "schedule" },
 270                 { 0, 1000, "perf", "libc",     "free" },
 271                 { 0, 1000, "perf", "libc",     "malloc" },
 272                 { 0, 1000, "perf", "perf",     "cmd_record" },
 273         };
 274
 275         symbol_conf.use_callchain = false;
 276         symbol_conf.cumulate_callchain = false;
 277         perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
 278
 279         setup_sorting(NULL);
 280         callchain_register_param(&callchain_param);
 281
 282         err = add_hist_entries(hists, machine);
 283         if (err < 0)
 284                 goto out;
 285
 286         err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, 0);
 287
 288 out:
 289         del_hist_entries(hists);
 290         reset_output_field();
 291         return err;
 292 }
 293
 294 /* callcain + NO children */
 295 static int test2(struct perf_evsel *evsel, struct machine *machine)
 296 {
 297         int err;
 298         struct hists *hists = evsel__hists(evsel);
 299         /*
 300          * expected output:
 301          *
 302          * Overhead  Command  Shared Object          Symbol
 303          * ========  =======  =============  ==============
 304          *   20.00%     perf  perf           [.] main
 305          *              |
 306          *              --- main
 307          *
 308          *   10.00%     bash  [kernel]       [k] page_fault
 309          *              |
 310          *              --- page_fault
 311          *                  malloc
 312          *                  main
 313          *
 314          *   10.00%     bash  bash           [.] main
 315          *              |
 316          *              --- main
 317          *
 318          *   10.00%     bash  bash           [.] xmalloc
 319          *              |
 320          *              --- xmalloc
 321          *                  malloc
 322          *                  xmalloc     <--- NOTE: there's a cycle
 323          *                  malloc
 324          *                  xmalloc
 325          *                  main
 326          *
 327          *   10.00%     perf  [kernel]       [k] page_fault
 328          *              |
 329          *              --- page_fault
 330          *                  sys_perf_event_open
 331          *                  run_command
 332          *                  main
 333          *
 334          *   10.00%     perf  [kernel]       [k] schedule
 335          *              |
 336          *              --- schedule
 337          *                  run_command
 338          *                  main
 339          *
 340          *   10.00%     perf  libc           [.] free
 341          *              |
 342          *              --- free
 343          *                  cmd_record
 344          *                  run_command
 345          *                  main
 346          *
 347          *   10.00%     perf  libc           [.] malloc
 348          *              |
 349          *              --- malloc
 350          *                  cmd_record
 351          *                  run_command
 352          *                  main
 353          *
 354          *   10.00%     perf  perf           [.] cmd_record
 355          *              |
 356          *              --- cmd_record
 357          *                  run_command
 358          *                  main
 359          *
 360          */
 361         struct result expected[] = {
 362                 { 0, 2000, "perf", "perf",     "main" },
 363                 { 0, 1000, "bash", "[kernel]", "page_fault" },
 364                 { 0, 1000, "bash", "bash",     "main" },
 365                 { 0, 1000, "bash", "bash",     "xmalloc" },
 366                 { 0, 1000, "perf", "[kernel]", "page_fault" },
 367                 { 0, 1000, "perf", "[kernel]", "schedule" },
 368                 { 0, 1000, "perf", "libc",     "free" },
 369                 { 0, 1000, "perf", "libc",     "malloc" },
 370                 { 0, 1000, "perf", "perf",     "cmd_record" },
 371         };
 372         struct callchain_result expected_callchain[] = {
 373                 {
 374                         1, {    { "perf",     "main" }, },
 375                 },
 376                 {
 377                         3, {    { "[kernel]", "page_fault" },
 378                                 { "libc",     "malloc" },
 379                                 { "bash",     "main" }, },
 380                 },
 381                 {
 382                         1, {    { "bash",     "main" }, },
 383                 },
 384                 {
 385                         6, {    { "bash",     "xmalloc" },
 386                                 { "libc",     "malloc" },
 387                                 { "bash",     "xmalloc" },
 388                                 { "libc",     "malloc" },
 389                                 { "bash",     "xmalloc" },
 390                                 { "bash",     "main" }, },
 391                 },
 392                 {
 393                         4, {    { "[kernel]", "page_fault" },
 394                                 { "[kernel]", "sys_perf_event_open" },
 395                                 { "perf",     "run_command" },
 396                                 { "perf",     "main" }, },
 397                 },
 398                 {
 399                         3, {    { "[kernel]", "schedule" },
 400                                 { "perf",     "run_command" },
 401                                 { "perf",     "main" }, },
 402                 },
 403                 {
 404                         4, {    { "libc",     "free" },
 405                                 { "perf",     "cmd_record" },
 406                                 { "perf",     "run_command" },
 407                                 { "perf",     "main" }, },
 408                 },
 409                 {
 410                         4, {    { "libc",     "malloc" },
 411                                 { "perf",     "cmd_record" },
 412                                 { "perf",     "run_command" },
 413                                 { "perf",     "main" }, },
 414                 },
 415                 {
 416                         3, {    { "perf",     "cmd_record" },
 417                                 { "perf",     "run_command" },
 418                                 { "perf",     "main" }, },
 419                 },
 420         };
 421
 422         symbol_conf.use_callchain = true;
 423         symbol_conf.cumulate_callchain = false;
 424         perf_evsel__set_sample_bit(evsel, CALLCHAIN);
 425
 426         setup_sorting(NULL);
 427         callchain_register_param(&callchain_param);
 428
 429         err = add_hist_entries(hists, machine);
 430         if (err < 0)
 431                 goto out;
 432
 433         err = do_test(hists, expected, ARRAY_SIZE(expected),
 434                       expected_callchain, ARRAY_SIZE(expected_callchain));
 435
 436 out:
 437         del_hist_entries(hists);
 438         reset_output_field();
 439         return err;
 440 }
 441
 442 /* NO callchain + children */
 443 static int test3(struct perf_evsel *evsel, struct machine *machine)
 444 {
 445         int err;
 446         struct hists *hists = evsel__hists(evsel);
 447         /*
 448          * expected output:
 449          *
 450          * Children      Self  Command  Shared Object                   Symbol
 451          * ========  ========  =======  =============  =======================
 452          *   70.00%    20.00%     perf  perf           [.] main
 453          *   50.00%     0.00%     perf  perf           [.] run_command
 454          *   30.00%    10.00%     bash  bash           [.] main
 455          *   30.00%    10.00%     perf  perf           [.] cmd_record
 456          *   20.00%     0.00%     bash  libc           [.] malloc
 457          *   10.00%    10.00%     bash  [kernel]       [k] page_fault
 458          *   10.00%    10.00%     bash  bash           [.] xmalloc
 459          *   10.00%    10.00%     perf  [kernel]       [k] page_fault
 460          *   10.00%    10.00%     perf  libc           [.] malloc
 461          *   10.00%    10.00%     perf  [kernel]       [k] schedule
 462          *   10.00%    10.00%     perf  libc           [.] free
 463          *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
 464          */
 465         struct result expected[] = {
 466                 { 7000, 2000, "perf", "perf",     "main" },
 467                 { 5000,    0, "perf", "perf",     "run_command" },
 468                 { 3000, 1000, "bash", "bash",     "main" },
 469                 { 3000, 1000, "perf", "perf",     "cmd_record" },
 470                 { 2000,    0, "bash", "libc",     "malloc" },
 471                 { 1000, 1000, "bash", "[kernel]", "page_fault" },
 472                 { 1000, 1000, "bash", "bash",     "xmalloc" },
 473                 { 1000, 1000, "perf", "[kernel]", "page_fault" },
 474                 { 1000, 1000, "perf", "[kernel]", "schedule" },
 475                 { 1000, 1000, "perf", "libc",     "free" },
 476                 { 1000, 1000, "perf", "libc",     "malloc" },
 477                 { 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
 478         };
 479
 480         symbol_conf.use_callchain = false;
 481         symbol_conf.cumulate_callchain = true;
 482         perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
 483
 484         setup_sorting(NULL);
 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         perf_evsel__set_sample_bit(evsel, CALLCHAIN);
 667
 668         setup_sorting(NULL);
 669         callchain_register_param(&callchain_param);
 670
 671         err = add_hist_entries(hists, machine);
 672         if (err < 0)
 673                 goto out;
 674
 675         err = do_test(hists, expected, ARRAY_SIZE(expected),
 676                       expected_callchain, ARRAY_SIZE(expected_callchain));
 677
 678 out:
 679         del_hist_entries(hists);
 680         reset_output_field();
 681         return err;
 682 }
 683
 684 int test__hists_cumulate(int subtest __maybe_unused)
 685 {
 686         int err = TEST_FAIL;
 687         struct machines machines;
 688         struct machine *machine;
 689         struct perf_evsel *evsel;
 690         struct perf_evlist *evlist = perf_evlist__new();
 691         size_t i;
 692         test_fn_t testcases[] = {
 693                 test1,
 694                 test2,
 695                 test3,
 696                 test4,
 697         };
 698
 699         TEST_ASSERT_VAL("No memory", evlist);
 700
 701         err = parse_events(evlist, "cpu-clock", NULL);
 702         if (err)
 703                 goto out;
 704         err = TEST_FAIL;
 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 }