tools/perf/tests/hists_output.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 cpu;
  15         u32 pid;
  16         u64 ip;
  17         struct thread *thread;
  18         struct map *map;
  19         struct symbol *sym;
  20 };
  21
  22 /* For the numbers, see hists_common.c */
  23 static struct sample fake_samples[] = {
  24         /* perf [kernel] schedule() */
  25         { .cpu = 0, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
  26         /* perf [perf]   main() */
  27         { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
  28         /* perf [perf]   cmd_record() */
  29         { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
  30         /* perf [libc]   malloc() */
  31         { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
  32         /* perf [libc]   free() */
  33         { .cpu = 2, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
  34         /* perf [perf]   main() */
  35         { .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
  36         /* perf [kernel] page_fault() */
  37         { .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
  38         /* bash [bash]   main() */
  39         { .cpu = 3, .pid = FAKE_PID_BASH,  .ip = FAKE_IP_BASH_MAIN, },
  40         /* bash [bash]   xmalloc() */
  41         { .cpu = 0, .pid = FAKE_PID_BASH,  .ip = FAKE_IP_BASH_XMALLOC, },
  42         /* bash [kernel] page_fault() */
  43         { .cpu = 1, .pid = FAKE_PID_BASH,  .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
  44 };
  45
  46 static int add_hist_entries(struct hists *hists, struct machine *machine)
  47 {
  48         struct addr_location al;
  49         struct perf_evsel *evsel = hists_to_evsel(hists);
  50         struct perf_sample sample = { .period = 100, };
  51         size_t i;
  52
  53         for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
  54                 const union perf_event event = {
  55                         .header = {
  56                                 .misc = PERF_RECORD_MISC_USER,
  57                         },
  58                 };
  59                 struct hist_entry_iter iter = {
  60                         .ops = &hist_iter_normal,
  61                         .hide_unresolved = false,
  62                 };
  63
  64                 sample.cpu = fake_samples[i].cpu;
  65                 sample.pid = fake_samples[i].pid;
  66                 sample.tid = fake_samples[i].pid;
  67                 sample.ip = fake_samples[i].ip;
  68
  69                 if (perf_event__preprocess_sample(&event, machine, &al,
  70                                                   &sample) < 0)
  71                         goto out;
  72
  73                 if (hist_entry_iter__add(&iter, &al, evsel, &sample,
  74                                          PERF_MAX_STACK_DEPTH, NULL) < 0)
  75                         goto out;
  76
  77                 fake_samples[i].thread = al.thread;
  78                 fake_samples[i].map = al.map;
  79                 fake_samples[i].sym = al.sym;
  80         }
  81
  82         return TEST_OK;
  83
  84 out:
  85         pr_debug("Not enough memory for adding a hist entry\n");
  86         return TEST_FAIL;
  87 }
  88
  89 static void del_hist_entries(struct hists *hists)
  90 {
  91         struct hist_entry *he;
  92         struct rb_root *root_in;
  93         struct rb_root *root_out;
  94         struct rb_node *node;
  95
  96         if (sort__need_collapse)
  97                 root_in = &hists->entries_collapsed;
  98         else
  99                 root_in = hists->entries_in;
 100
 101         root_out = &hists->entries;
 102
 103         while (!RB_EMPTY_ROOT(root_out)) {
 104                 node = rb_first(root_out);
 105
 106                 he = rb_entry(node, struct hist_entry, rb_node);
 107                 rb_erase(node, root_out);
 108                 rb_erase(&he->rb_node_in, root_in);
 109                 hist_entry__delete(he);
 110         }
 111 }
 112
 113 typedef int (*test_fn_t)(struct perf_evsel *, struct machine *);
 114
 115 #define COMM(he)  (thread__comm_str(he->thread))
 116 #define DSO(he)   (he->ms.map->dso->short_name)
 117 #define SYM(he)   (he->ms.sym->name)
 118 #define CPU(he)   (he->cpu)
 119 #define PID(he)   (he->thread->tid)
 120
 121 /* default sort keys (no field) */
 122 static int test1(struct perf_evsel *evsel, struct machine *machine)
 123 {
 124         int err;
 125         struct hists *hists = evsel__hists(evsel);
 126         struct hist_entry *he;
 127         struct rb_root *root;
 128         struct rb_node *node;
 129
 130         field_order = NULL;
 131         sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
 132
 133         setup_sorting();
 134
 135         /*
 136          * expected output:
 137          *
 138          * Overhead  Command  Shared Object          Symbol
 139          * ========  =======  =============  ==============
 140          *   20.00%     perf  perf           [.] main
 141          *   10.00%     bash  [kernel]       [k] page_fault
 142          *   10.00%     bash  bash           [.] main
 143          *   10.00%     bash  bash           [.] xmalloc
 144          *   10.00%     perf  [kernel]       [k] page_fault
 145          *   10.00%     perf  [kernel]       [k] schedule
 146          *   10.00%     perf  libc           [.] free
 147          *   10.00%     perf  libc           [.] malloc
 148          *   10.00%     perf  perf           [.] cmd_record
 149          */
 150         err = add_hist_entries(hists, machine);
 151         if (err < 0)
 152                 goto out;
 153
 154         hists__collapse_resort(hists, NULL);
 155         hists__output_resort(hists, NULL);
 156
 157         if (verbose > 2) {
 158                 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
 159                 print_hists_out(hists);
 160         }
 161
 162         root = &hists->entries;
 163         node = rb_first(root);
 164         he = rb_entry(node, struct hist_entry, rb_node);
 165         TEST_ASSERT_VAL("Invalid hist entry",
 166                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
 167                         !strcmp(SYM(he), "main") && he->stat.period == 200);
 168
 169         node = rb_next(node);
 170         he = rb_entry(node, struct hist_entry, rb_node);
 171         TEST_ASSERT_VAL("Invalid hist entry",
 172                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
 173                         !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
 174
 175         node = rb_next(node);
 176         he = rb_entry(node, struct hist_entry, rb_node);
 177         TEST_ASSERT_VAL("Invalid hist entry",
 178                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
 179                         !strcmp(SYM(he), "main") && he->stat.period == 100);
 180
 181         node = rb_next(node);
 182         he = rb_entry(node, struct hist_entry, rb_node);
 183         TEST_ASSERT_VAL("Invalid hist entry",
 184                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
 185                         !strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
 186
 187         node = rb_next(node);
 188         he = rb_entry(node, struct hist_entry, rb_node);
 189         TEST_ASSERT_VAL("Invalid hist entry",
 190                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
 191                         !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
 192
 193         node = rb_next(node);
 194         he = rb_entry(node, struct hist_entry, rb_node);
 195         TEST_ASSERT_VAL("Invalid hist entry",
 196                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
 197                         !strcmp(SYM(he), "schedule") && he->stat.period == 100);
 198
 199         node = rb_next(node);
 200         he = rb_entry(node, struct hist_entry, rb_node);
 201         TEST_ASSERT_VAL("Invalid hist entry",
 202                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
 203                         !strcmp(SYM(he), "free") && he->stat.period == 100);
 204
 205         node = rb_next(node);
 206         he = rb_entry(node, struct hist_entry, rb_node);
 207         TEST_ASSERT_VAL("Invalid hist entry",
 208                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
 209                         !strcmp(SYM(he), "malloc") && he->stat.period == 100);
 210
 211         node = rb_next(node);
 212         he = rb_entry(node, struct hist_entry, rb_node);
 213         TEST_ASSERT_VAL("Invalid hist entry",
 214                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
 215                         !strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
 216
 217 out:
 218         del_hist_entries(hists);
 219         reset_output_field();
 220         return err;
 221 }
 222
 223 /* mixed fields and sort keys */
 224 static int test2(struct perf_evsel *evsel, struct machine *machine)
 225 {
 226         int err;
 227         struct hists *hists = evsel__hists(evsel);
 228         struct hist_entry *he;
 229         struct rb_root *root;
 230         struct rb_node *node;
 231
 232         field_order = "overhead,cpu";
 233         sort_order = "pid";
 234
 235         setup_sorting();
 236
 237         /*
 238          * expected output:
 239          *
 240          * Overhead  CPU  Command:  Pid
 241          * ========  ===  =============
 242          *   30.00%    1  perf   :  100
 243          *   10.00%    0  perf   :  100
 244          *   10.00%    2  perf   :  100
 245          *   20.00%    2  perf   :  200
 246          *   10.00%    0  bash   :  300
 247          *   10.00%    1  bash   :  300
 248          *   10.00%    3  bash   :  300
 249          */
 250         err = add_hist_entries(hists, machine);
 251         if (err < 0)
 252                 goto out;
 253
 254         hists__collapse_resort(hists, NULL);
 255         hists__output_resort(hists, NULL);
 256
 257         if (verbose > 2) {
 258                 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
 259                 print_hists_out(hists);
 260         }
 261
 262         root = &hists->entries;
 263         node = rb_first(root);
 264         he = rb_entry(node, struct hist_entry, rb_node);
 265         TEST_ASSERT_VAL("Invalid hist entry",
 266                         CPU(he) == 1 && PID(he) == 100 && he->stat.period == 300);
 267
 268         node = rb_next(node);
 269         he = rb_entry(node, struct hist_entry, rb_node);
 270         TEST_ASSERT_VAL("Invalid hist entry",
 271                         CPU(he) == 0 && PID(he) == 100 && he->stat.period == 100);
 272
 273 out:
 274         del_hist_entries(hists);
 275         reset_output_field();
 276         return err;
 277 }
 278
 279 /* fields only (no sort key) */
 280 static int test3(struct perf_evsel *evsel, struct machine *machine)
 281 {
 282         int err;
 283         struct hists *hists = evsel__hists(evsel);
 284         struct hist_entry *he;
 285         struct rb_root *root;
 286         struct rb_node *node;
 287
 288         field_order = "comm,overhead,dso";
 289         sort_order = NULL;
 290
 291         setup_sorting();
 292
 293         /*
 294          * expected output:
 295          *
 296          * Command  Overhead  Shared Object
 297          * =======  ========  =============
 298          *    bash    20.00%  bash
 299          *    bash    10.00%  [kernel]
 300          *    perf    30.00%  perf
 301          *    perf    20.00%  [kernel]
 302          *    perf    20.00%  libc
 303          */
 304         err = add_hist_entries(hists, machine);
 305         if (err < 0)
 306                 goto out;
 307
 308         hists__collapse_resort(hists, NULL);
 309         hists__output_resort(hists, NULL);
 310
 311         if (verbose > 2) {
 312                 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
 313                 print_hists_out(hists);
 314         }
 315
 316         root = &hists->entries;
 317         node = rb_first(root);
 318         he = rb_entry(node, struct hist_entry, rb_node);
 319         TEST_ASSERT_VAL("Invalid hist entry",
 320                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
 321                         he->stat.period == 200);
 322
 323         node = rb_next(node);
 324         he = rb_entry(node, struct hist_entry, rb_node);
 325         TEST_ASSERT_VAL("Invalid hist entry",
 326                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
 327                         he->stat.period == 100);
 328
 329         node = rb_next(node);
 330         he = rb_entry(node, struct hist_entry, rb_node);
 331         TEST_ASSERT_VAL("Invalid hist entry",
 332                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
 333                         he->stat.period == 300);
 334
 335         node = rb_next(node);
 336         he = rb_entry(node, struct hist_entry, rb_node);
 337         TEST_ASSERT_VAL("Invalid hist entry",
 338                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
 339                         he->stat.period == 200);
 340
 341         node = rb_next(node);
 342         he = rb_entry(node, struct hist_entry, rb_node);
 343         TEST_ASSERT_VAL("Invalid hist entry",
 344                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
 345                         he->stat.period == 200);
 346
 347 out:
 348         del_hist_entries(hists);
 349         reset_output_field();
 350         return err;
 351 }
 352
 353 /* handle duplicate 'dso' field */
 354 static int test4(struct perf_evsel *evsel, struct machine *machine)
 355 {
 356         int err;
 357         struct hists *hists = evsel__hists(evsel);
 358         struct hist_entry *he;
 359         struct rb_root *root;
 360         struct rb_node *node;
 361
 362         field_order = "dso,sym,comm,overhead,dso";
 363         sort_order = "sym";
 364
 365         setup_sorting();
 366
 367         /*
 368          * expected output:
 369          *
 370          * Shared Object          Symbol  Command  Overhead
 371          * =============  ==============  =======  ========
 372          *          perf  [.] cmd_record     perf    10.00%
 373          *          libc  [.] free           perf    10.00%
 374          *          bash  [.] main           bash    10.00%
 375          *          perf  [.] main           perf    20.00%
 376          *          libc  [.] malloc         perf    10.00%
 377          *      [kernel]  [k] page_fault     bash    10.00%
 378          *      [kernel]  [k] page_fault     perf    10.00%
 379          *      [kernel]  [k] schedule       perf    10.00%
 380          *          bash  [.] xmalloc        bash    10.00%
 381          */
 382         err = add_hist_entries(hists, machine);
 383         if (err < 0)
 384                 goto out;
 385
 386         hists__collapse_resort(hists, NULL);
 387         hists__output_resort(hists, NULL);
 388
 389         if (verbose > 2) {
 390                 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
 391                 print_hists_out(hists);
 392         }
 393
 394         root = &hists->entries;
 395         node = rb_first(root);
 396         he = rb_entry(node, struct hist_entry, rb_node);
 397         TEST_ASSERT_VAL("Invalid hist entry",
 398                         !strcmp(DSO(he), "perf") && !strcmp(SYM(he), "cmd_record") &&
 399                         !strcmp(COMM(he), "perf") && he->stat.period == 100);
 400
 401         node = rb_next(node);
 402         he = rb_entry(node, struct hist_entry, rb_node);
 403         TEST_ASSERT_VAL("Invalid hist entry",
 404                         !strcmp(DSO(he), "libc") && !strcmp(SYM(he), "free") &&
 405                         !strcmp(COMM(he), "perf") && he->stat.period == 100);
 406
 407         node = rb_next(node);
 408         he = rb_entry(node, struct hist_entry, rb_node);
 409         TEST_ASSERT_VAL("Invalid hist entry",
 410                         !strcmp(DSO(he), "bash") && !strcmp(SYM(he), "main") &&
 411                         !strcmp(COMM(he), "bash") && he->stat.period == 100);
 412
 413         node = rb_next(node);
 414         he = rb_entry(node, struct hist_entry, rb_node);
 415         TEST_ASSERT_VAL("Invalid hist entry",
 416                         !strcmp(DSO(he), "perf") && !strcmp(SYM(he), "main") &&
 417                         !strcmp(COMM(he), "perf") && he->stat.period == 200);
 418
 419         node = rb_next(node);
 420         he = rb_entry(node, struct hist_entry, rb_node);
 421         TEST_ASSERT_VAL("Invalid hist entry",
 422                         !strcmp(DSO(he), "libc") && !strcmp(SYM(he), "malloc") &&
 423                         !strcmp(COMM(he), "perf") && he->stat.period == 100);
 424
 425         node = rb_next(node);
 426         he = rb_entry(node, struct hist_entry, rb_node);
 427         TEST_ASSERT_VAL("Invalid hist entry",
 428                         !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
 429                         !strcmp(COMM(he), "bash") && he->stat.period == 100);
 430
 431         node = rb_next(node);
 432         he = rb_entry(node, struct hist_entry, rb_node);
 433         TEST_ASSERT_VAL("Invalid hist entry",
 434                         !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
 435                         !strcmp(COMM(he), "perf") && he->stat.period == 100);
 436
 437         node = rb_next(node);
 438         he = rb_entry(node, struct hist_entry, rb_node);
 439         TEST_ASSERT_VAL("Invalid hist entry",
 440                         !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "schedule") &&
 441                         !strcmp(COMM(he), "perf") && he->stat.period == 100);
 442
 443         node = rb_next(node);
 444         he = rb_entry(node, struct hist_entry, rb_node);
 445         TEST_ASSERT_VAL("Invalid hist entry",
 446                         !strcmp(DSO(he), "bash") && !strcmp(SYM(he), "xmalloc") &&
 447                         !strcmp(COMM(he), "bash") && he->stat.period == 100);
 448
 449 out:
 450         del_hist_entries(hists);
 451         reset_output_field();
 452         return err;
 453 }
 454
 455 /* full sort keys w/o overhead field */
 456 static int test5(struct perf_evsel *evsel, struct machine *machine)
 457 {
 458         int err;
 459         struct hists *hists = evsel__hists(evsel);
 460         struct hist_entry *he;
 461         struct rb_root *root;
 462         struct rb_node *node;
 463
 464         field_order = "cpu,pid,comm,dso,sym";
 465         sort_order = "dso,pid";
 466
 467         setup_sorting();
 468
 469         /*
 470          * expected output:
 471          *
 472          * CPU  Command:  Pid  Command  Shared Object          Symbol
 473          * ===  =============  =======  =============  ==============
 474          *   0     perf:  100     perf       [kernel]  [k] schedule
 475          *   2     perf:  200     perf       [kernel]  [k] page_fault
 476          *   1     bash:  300     bash       [kernel]  [k] page_fault
 477          *   0     bash:  300     bash           bash  [.] xmalloc
 478          *   3     bash:  300     bash           bash  [.] main
 479          *   1     perf:  100     perf           libc  [.] malloc
 480          *   2     perf:  100     perf           libc  [.] free
 481          *   1     perf:  100     perf           perf  [.] cmd_record
 482          *   1     perf:  100     perf           perf  [.] main
 483          *   2     perf:  200     perf           perf  [.] main
 484          */
 485         err = add_hist_entries(hists, machine);
 486         if (err < 0)
 487                 goto out;
 488
 489         hists__collapse_resort(hists, NULL);
 490         hists__output_resort(hists, NULL);
 491
 492         if (verbose > 2) {
 493                 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
 494                 print_hists_out(hists);
 495         }
 496
 497         root = &hists->entries;
 498         node = rb_first(root);
 499         he = rb_entry(node, struct hist_entry, rb_node);
 500
 501         TEST_ASSERT_VAL("Invalid hist entry",
 502                         CPU(he) == 0 && PID(he) == 100 &&
 503                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
 504                         !strcmp(SYM(he), "schedule") && he->stat.period == 100);
 505
 506         node = rb_next(node);
 507         he = rb_entry(node, struct hist_entry, rb_node);
 508         TEST_ASSERT_VAL("Invalid hist entry",
 509                         CPU(he) == 2 && PID(he) == 200 &&
 510                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
 511                         !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
 512
 513         node = rb_next(node);
 514         he = rb_entry(node, struct hist_entry, rb_node);
 515         TEST_ASSERT_VAL("Invalid hist entry",
 516                         CPU(he) == 1 && PID(he) == 300 &&
 517                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
 518                         !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
 519
 520         node = rb_next(node);
 521         he = rb_entry(node, struct hist_entry, rb_node);
 522         TEST_ASSERT_VAL("Invalid hist entry",
 523                         CPU(he) == 0 && PID(he) == 300 &&
 524                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
 525                         !strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
 526
 527         node = rb_next(node);
 528         he = rb_entry(node, struct hist_entry, rb_node);
 529         TEST_ASSERT_VAL("Invalid hist entry",
 530                         CPU(he) == 3 && PID(he) == 300 &&
 531                         !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
 532                         !strcmp(SYM(he), "main") && he->stat.period == 100);
 533
 534         node = rb_next(node);
 535         he = rb_entry(node, struct hist_entry, rb_node);
 536         TEST_ASSERT_VAL("Invalid hist entry",
 537                         CPU(he) == 1 && PID(he) == 100 &&
 538                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
 539                         !strcmp(SYM(he), "malloc") && he->stat.period == 100);
 540
 541         node = rb_next(node);
 542         he = rb_entry(node, struct hist_entry, rb_node);
 543         TEST_ASSERT_VAL("Invalid hist entry",
 544                         CPU(he) == 2 && PID(he) == 100 &&
 545                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
 546                         !strcmp(SYM(he), "free") && he->stat.period == 100);
 547
 548         node = rb_next(node);
 549         he = rb_entry(node, struct hist_entry, rb_node);
 550         TEST_ASSERT_VAL("Invalid hist entry",
 551                         CPU(he) == 1 && PID(he) == 100 &&
 552                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
 553                         !strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
 554
 555         node = rb_next(node);
 556         he = rb_entry(node, struct hist_entry, rb_node);
 557         TEST_ASSERT_VAL("Invalid hist entry",
 558                         CPU(he) == 1 && PID(he) == 100 &&
 559                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
 560                         !strcmp(SYM(he), "main") && he->stat.period == 100);
 561
 562         node = rb_next(node);
 563         he = rb_entry(node, struct hist_entry, rb_node);
 564         TEST_ASSERT_VAL("Invalid hist entry",
 565                         CPU(he) == 2 && PID(he) == 200 &&
 566                         !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
 567                         !strcmp(SYM(he), "main") && he->stat.period == 100);
 568
 569 out:
 570         del_hist_entries(hists);
 571         reset_output_field();
 572         return err;
 573 }
 574
 575 int test__hists_output(void)
 576 {
 577         int err = TEST_FAIL;
 578         struct machines machines;
 579         struct machine *machine;
 580         struct perf_evsel *evsel;
 581         struct perf_evlist *evlist = perf_evlist__new();
 582         size_t i;
 583         test_fn_t testcases[] = {
 584                 test1,
 585                 test2,
 586                 test3,
 587                 test4,
 588                 test5,
 589         };
 590
 591         TEST_ASSERT_VAL("No memory", evlist);
 592
 593         err = parse_events(evlist, "cpu-clock");
 594         if (err)
 595                 goto out;
 596
 597         machines__init(&machines);
 598
 599         /* setup threads/dso/map/symbols also */
 600         machine = setup_fake_machine(&machines);
 601         if (!machine)
 602                 goto out;
 603
 604         if (verbose > 1)
 605                 machine__fprintf(machine, stderr);
 606
 607         evsel = perf_evlist__first(evlist);
 608
 609         for (i = 0; i < ARRAY_SIZE(testcases); i++) {
 610                 err = testcases[i](evsel, machine);
 611                 if (err < 0)
 612                         break;
 613         }
 614
 615 out:
 616         /* tear down everything */
 617         perf_evlist__delete(evlist);
 618         machines__exit(&machines);
 619
 620         return err;
 621 }