tools/perf/tests/builtin-test.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * builtin-test.c
   4  *
   5  * Builtin regression testing command: ever growing number of sanity tests
   6  */
   7 #include <fcntl.h>
   8 #include <errno.h>
   9 #include <unistd.h>
  10 #include <string.h>
  11 #include <stdlib.h>
  12 #include <sys/types.h>
  13 #include <dirent.h>
  14 #include <sys/wait.h>
  15 #include <sys/stat.h>
  16 #include "builtin.h"
  17 #include "hist.h"
  18 #include "intlist.h"
  19 #include "tests.h"
  20 #include "debug.h"
  21 #include "color.h"
  22 #include <subcmd/parse-options.h>
  23 #include "string2.h"
  24 #include "symbol.h"
  25 #include "util/rlimit.h"
  26 #include <linux/kernel.h>
  27 #include <linux/string.h>
  28 #include <subcmd/exec-cmd.h>
  29
  30 static bool dont_fork;
  31
  32 struct test __weak arch_tests[] = {
  33         {
  34                 .func = NULL,
  35         },
  36 };
  37
  38 static struct test generic_tests[] = {
  39         {
  40                 .desc = "vmlinux symtab matches kallsyms",
  41                 .func = test__vmlinux_matches_kallsyms,
  42         },
  43         {
  44                 .desc = "Detect openat syscall event",
  45                 .func = test__openat_syscall_event,
  46         },
  47         {
  48                 .desc = "Detect openat syscall event on all cpus",
  49                 .func = test__openat_syscall_event_on_all_cpus,
  50         },
  51         {
  52                 .desc = "Read samples using the mmap interface",
  53                 .func = test__basic_mmap,
  54         },
  55         {
  56                 .desc = "Test data source output",
  57                 .func = test__mem,
  58         },
  59         {
  60                 .desc = "Parse event definition strings",
  61                 .func = test__parse_events,
  62         },
  63         {
  64                 .desc = "Simple expression parser",
  65                 .func = test__expr,
  66         },
  67         {
  68                 .desc = "PERF_RECORD_* events & perf_sample fields",
  69                 .func = test__PERF_RECORD,
  70         },
  71         {
  72                 .desc = "Parse perf pmu format",
  73                 .func = test__pmu,
  74         },
  75         {
  76                 .desc = "PMU events",
  77                 .func = test__pmu_events,
  78                 .subtest = {
  79                         .skip_if_fail   = false,
  80                         .get_nr         = test__pmu_events_subtest_get_nr,
  81                         .get_desc       = test__pmu_events_subtest_get_desc,
  82                         .skip_reason    = test__pmu_events_subtest_skip_reason,
  83                 },
  84
  85         },
  86         {
  87                 .desc = "DSO data read",
  88                 .func = test__dso_data,
  89         },
  90         {
  91                 .desc = "DSO data cache",
  92                 .func = test__dso_data_cache,
  93         },
  94         {
  95                 .desc = "DSO data reopen",
  96                 .func = test__dso_data_reopen,
  97         },
  98         {
  99                 .desc = "Roundtrip evsel->name",
 100                 .func = test__perf_evsel__roundtrip_name_test,
 101         },
 102         {
 103                 .desc = "Parse sched tracepoints fields",
 104                 .func = test__perf_evsel__tp_sched_test,
 105         },
 106         {
 107                 .desc = "syscalls:sys_enter_openat event fields",
 108                 .func = test__syscall_openat_tp_fields,
 109         },
 110         {
 111                 .desc = "Setup struct perf_event_attr",
 112                 .func = test__attr,
 113         },
 114         {
 115                 .desc = "Match and link multiple hists",
 116                 .func = test__hists_link,
 117         },
 118         {
 119                 .desc = "'import perf' in python",
 120                 .func = test__python_use,
 121         },
 122         {
 123                 .desc = "Breakpoint overflow signal handler",
 124                 .func = test__bp_signal,
 125                 .is_supported = test__bp_signal_is_supported,
 126         },
 127         {
 128                 .desc = "Breakpoint overflow sampling",
 129                 .func = test__bp_signal_overflow,
 130                 .is_supported = test__bp_signal_is_supported,
 131         },
 132         {
 133                 .desc = "Breakpoint accounting",
 134                 .func = test__bp_accounting,
 135                 .is_supported = test__bp_account_is_supported,
 136         },
 137         {
 138                 .desc = "Watchpoint",
 139                 .func = test__wp,
 140                 .is_supported = test__wp_is_supported,
 141                 .subtest = {
 142                         .skip_if_fail   = false,
 143                         .get_nr         = test__wp_subtest_get_nr,
 144                         .get_desc       = test__wp_subtest_get_desc,
 145                         .skip_reason    = test__wp_subtest_skip_reason,
 146                 },
 147         },
 148         {
 149                 .desc = "Number of exit events of a simple workload",
 150                 .func = test__task_exit,
 151         },
 152         {
 153                 .desc = "Software clock events period values",
 154                 .func = test__sw_clock_freq,
 155         },
 156         {
 157                 .desc = "Object code reading",
 158                 .func = test__code_reading,
 159         },
 160         {
 161                 .desc = "Sample parsing",
 162                 .func = test__sample_parsing,
 163         },
 164         {
 165                 .desc = "Use a dummy software event to keep tracking",
 166                 .func = test__keep_tracking,
 167         },
 168         {
 169                 .desc = "Parse with no sample_id_all bit set",
 170                 .func = test__parse_no_sample_id_all,
 171         },
 172         {
 173                 .desc = "Filter hist entries",
 174                 .func = test__hists_filter,
 175         },
 176         {
 177                 .desc = "Lookup mmap thread",
 178                 .func = test__mmap_thread_lookup,
 179         },
 180         {
 181                 .desc = "Share thread maps",
 182                 .func = test__thread_maps_share,
 183         },
 184         {
 185                 .desc = "Sort output of hist entries",
 186                 .func = test__hists_output,
 187         },
 188         {
 189                 .desc = "Cumulate child hist entries",
 190                 .func = test__hists_cumulate,
 191         },
 192         {
 193                 .desc = "Track with sched_switch",
 194                 .func = test__switch_tracking,
 195         },
 196         {
 197                 .desc = "Filter fds with revents mask in a fdarray",
 198                 .func = test__fdarray__filter,
 199         },
 200         {
 201                 .desc = "Add fd to a fdarray, making it autogrow",
 202                 .func = test__fdarray__add,
 203         },
 204         {
 205                 .desc = "kmod_path__parse",
 206                 .func = test__kmod_path__parse,
 207         },
 208         {
 209                 .desc = "Thread map",
 210                 .func = test__thread_map,
 211         },
 212         {
 213                 .desc = "LLVM search and compile",
 214                 .func = test__llvm,
 215                 .subtest = {
 216                         .skip_if_fail   = true,
 217                         .get_nr         = test__llvm_subtest_get_nr,
 218                         .get_desc       = test__llvm_subtest_get_desc,
 219                 },
 220         },
 221         {
 222                 .desc = "Session topology",
 223                 .func = test__session_topology,
 224         },
 225         {
 226                 .desc = "BPF filter",
 227                 .func = test__bpf,
 228                 .subtest = {
 229                         .skip_if_fail   = true,
 230                         .get_nr         = test__bpf_subtest_get_nr,
 231                         .get_desc       = test__bpf_subtest_get_desc,
 232                 },
 233         },
 234         {
 235                 .desc = "Synthesize thread map",
 236                 .func = test__thread_map_synthesize,
 237         },
 238         {
 239                 .desc = "Remove thread map",
 240                 .func = test__thread_map_remove,
 241         },
 242         {
 243                 .desc = "Synthesize cpu map",
 244                 .func = test__cpu_map_synthesize,
 245         },
 246         {
 247                 .desc = "Synthesize stat config",
 248                 .func = test__synthesize_stat_config,
 249         },
 250         {
 251                 .desc = "Synthesize stat",
 252                 .func = test__synthesize_stat,
 253         },
 254         {
 255                 .desc = "Synthesize stat round",
 256                 .func = test__synthesize_stat_round,
 257         },
 258         {
 259                 .desc = "Synthesize attr update",
 260                 .func = test__event_update,
 261         },
 262         {
 263                 .desc = "Event times",
 264                 .func = test__event_times,
 265         },
 266         {
 267                 .desc = "Read backward ring buffer",
 268                 .func = test__backward_ring_buffer,
 269         },
 270         {
 271                 .desc = "Print cpu map",
 272                 .func = test__cpu_map_print,
 273         },
 274         {
 275                 .desc = "Merge cpu map",
 276                 .func = test__cpu_map_merge,
 277         },
 278
 279         {
 280                 .desc = "Probe SDT events",
 281                 .func = test__sdt_event,
 282         },
 283         {
 284                 .desc = "is_printable_array",
 285                 .func = test__is_printable_array,
 286         },
 287         {
 288                 .desc = "Print bitmap",
 289                 .func = test__bitmap_print,
 290         },
 291         {
 292                 .desc = "perf hooks",
 293                 .func = test__perf_hooks,
 294         },
 295         {
 296                 .desc = "builtin clang support",
 297                 .func = test__clang,
 298                 .subtest = {
 299                         .skip_if_fail   = true,
 300                         .get_nr         = test__clang_subtest_get_nr,
 301                         .get_desc       = test__clang_subtest_get_desc,
 302                 }
 303         },
 304         {
 305                 .desc = "unit_number__scnprintf",
 306                 .func = test__unit_number__scnprint,
 307         },
 308         {
 309                 .desc = "mem2node",
 310                 .func = test__mem2node,
 311         },
 312         {
 313                 .desc = "time utils",
 314                 .func = test__time_utils,
 315         },
 316         {
 317                 .desc = "Test jit_write_elf",
 318                 .func = test__jit_write_elf,
 319         },
 320         {
 321                 .desc = "Test libpfm4 support",
 322                 .func = test__pfm,
 323                 .subtest = {
 324                         .skip_if_fail   = true,
 325                         .get_nr         = test__pfm_subtest_get_nr,
 326                         .get_desc       = test__pfm_subtest_get_desc,
 327                 }
 328         },
 329         {
 330                 .desc = "Test api io",
 331                 .func = test__api_io,
 332         },
 333         {
 334                 .desc = "maps__merge_in",
 335                 .func = test__maps__merge_in,
 336         },
 337         {
 338                 .desc = "Demangle Java",
 339                 .func = test__demangle_java,
 340         },
 341         {
 342                 .desc = "Parse and process metrics",
 343                 .func = test__parse_metric,
 344         },
 345         {
 346                 .desc = "PE file support",
 347                 .func = test__pe_file_parsing,
 348         },
 349         {
 350                 .desc = "Event expansion for cgroups",
 351                 .func = test__expand_cgroup_events,
 352         },
 353         {
 354                 .desc = "Convert perf time to TSC",
 355                 .func = test__perf_time_to_tsc,
 356                 .is_supported = test__tsc_is_supported,
 357         },
 358         {
 359                 .func = NULL,
 360         },
 361 };
 362
 363 static struct test *tests[] = {
 364         generic_tests,
 365         arch_tests,
 366 };
 367
 368 static bool perf_test__matches(const char *desc, int curr, int argc, const char *argv[])
 369 {
 370         int i;
 371
 372         if (argc == 0)
 373                 return true;
 374
 375         for (i = 0; i < argc; ++i) {
 376                 char *end;
 377                 long nr = strtoul(argv[i], &end, 10);
 378
 379                 if (*end == '\0') {
 380                         if (nr == curr + 1)
 381                                 return true;
 382                         continue;
 383                 }
 384
 385                 if (strcasestr(desc, argv[i]))
 386                         return true;
 387         }
 388
 389         return false;
 390 }
 391
 392 static int run_test(struct test *test, int subtest)
 393 {
 394         int status, err = -1, child = dont_fork ? 0 : fork();
 395         char sbuf[STRERR_BUFSIZE];
 396
 397         if (child < 0) {
 398                 pr_err("failed to fork test: %s\n",
 399                         str_error_r(errno, sbuf, sizeof(sbuf)));
 400                 return -1;
 401         }
 402
 403         if (!child) {
 404                 if (!dont_fork) {
 405                         pr_debug("test child forked, pid %d\n", getpid());
 406
 407                         if (verbose <= 0) {
 408                                 int nullfd = open("/dev/null", O_WRONLY);
 409
 410                                 if (nullfd >= 0) {
 411                                         close(STDERR_FILENO);
 412                                         close(STDOUT_FILENO);
 413
 414                                         dup2(nullfd, STDOUT_FILENO);
 415                                         dup2(STDOUT_FILENO, STDERR_FILENO);
 416                                         close(nullfd);
 417                                 }
 418                         } else {
 419                                 signal(SIGSEGV, sighandler_dump_stack);
 420                                 signal(SIGFPE, sighandler_dump_stack);
 421                         }
 422                 }
 423
 424                 err = test->func(test, subtest);
 425                 if (!dont_fork)
 426                         exit(err);
 427         }
 428
 429         if (!dont_fork) {
 430                 wait(&status);
 431
 432                 if (WIFEXITED(status)) {
 433                         err = (signed char)WEXITSTATUS(status);
 434                         pr_debug("test child finished with %d\n", err);
 435                 } else if (WIFSIGNALED(status)) {
 436                         err = -1;
 437                         pr_debug("test child interrupted\n");
 438                 }
 439         }
 440
 441         return err;
 442 }
 443
 444 #define for_each_test(j, t)                                     \
 445         for (j = 0; j < ARRAY_SIZE(tests); j++) \
 446                 for (t = &tests[j][0]; t->func; t++)
 447
 448 static int test_and_print(struct test *t, bool force_skip, int subtest)
 449 {
 450         int err;
 451
 452         if (!force_skip) {
 453                 pr_debug("\n--- start ---\n");
 454                 err = run_test(t, subtest);
 455                 pr_debug("---- end ----\n");
 456         } else {
 457                 pr_debug("\n--- force skipped ---\n");
 458                 err = TEST_SKIP;
 459         }
 460
 461         if (!t->subtest.get_nr)
 462                 pr_debug("%s:", t->desc);
 463         else
 464                 pr_debug("%s subtest %d:", t->desc, subtest + 1);
 465
 466         switch (err) {
 467         case TEST_OK:
 468                 pr_info(" Ok\n");
 469                 break;
 470         case TEST_SKIP: {
 471                 const char *skip_reason = NULL;
 472                 if (t->subtest.skip_reason)
 473                         skip_reason = t->subtest.skip_reason(subtest);
 474                 if (skip_reason)
 475                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", skip_reason);
 476                 else
 477                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
 478         }
 479                 break;
 480         case TEST_FAIL:
 481         default:
 482                 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
 483                 break;
 484         }
 485
 486         return err;
 487 }
 488
 489 static const char *shell_test__description(char *description, size_t size,
 490                                            const char *path, const char *name)
 491 {
 492         FILE *fp;
 493         char filename[PATH_MAX];
 494
 495         path__join(filename, sizeof(filename), path, name);
 496         fp = fopen(filename, "r");
 497         if (!fp)
 498                 return NULL;
 499
 500         /* Skip shebang */
 501         while (fgetc(fp) != '\n');
 502
 503         description = fgets(description, size, fp);
 504         fclose(fp);
 505
 506         return description ? strim(description + 1) : NULL;
 507 }
 508
 509 #define for_each_shell_test(dir, base, ent)     \
 510         while ((ent = readdir(dir)) != NULL)    \
 511                 if (!is_directory(base, ent) && ent->d_name[0] != '.')
 512
 513 static const char *shell_tests__dir(char *path, size_t size)
 514 {
 515         const char *devel_dirs[] = { "./tools/perf/tests", "./tests", };
 516         char *exec_path;
 517         unsigned int i;
 518
 519         for (i = 0; i < ARRAY_SIZE(devel_dirs); ++i) {
 520                 struct stat st;
 521                 if (!lstat(devel_dirs[i], &st)) {
 522                         scnprintf(path, size, "%s/shell", devel_dirs[i]);
 523                         if (!lstat(devel_dirs[i], &st))
 524                                 return path;
 525                 }
 526         }
 527
 528         /* Then installed path. */
 529         exec_path = get_argv_exec_path();
 530         scnprintf(path, size, "%s/tests/shell", exec_path);
 531         free(exec_path);
 532         return path;
 533 }
 534
 535 static int shell_tests__max_desc_width(void)
 536 {
 537         DIR *dir;
 538         struct dirent *ent;
 539         char path_dir[PATH_MAX];
 540         const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
 541         int width = 0;
 542
 543         if (path == NULL)
 544                 return -1;
 545
 546         dir = opendir(path);
 547         if (!dir)
 548                 return -1;
 549
 550         for_each_shell_test(dir, path, ent) {
 551                 char bf[256];
 552                 const char *desc = shell_test__description(bf, sizeof(bf), path, ent->d_name);
 553
 554                 if (desc) {
 555                         int len = strlen(desc);
 556
 557                         if (width < len)
 558                                 width = len;
 559                 }
 560         }
 561
 562         closedir(dir);
 563         return width;
 564 }
 565
 566 struct shell_test {
 567         const char *dir;
 568         const char *file;
 569 };
 570
 571 static int shell_test__run(struct test *test, int subdir __maybe_unused)
 572 {
 573         int err;
 574         char script[PATH_MAX];
 575         struct shell_test *st = test->priv;
 576
 577         path__join(script, sizeof(script), st->dir, st->file);
 578
 579         err = system(script);
 580         if (!err)
 581                 return TEST_OK;
 582
 583         return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
 584 }
 585
 586 static int run_shell_tests(int argc, const char *argv[], int i, int width)
 587 {
 588         DIR *dir;
 589         struct dirent *ent;
 590         char path_dir[PATH_MAX];
 591         struct shell_test st = {
 592                 .dir = shell_tests__dir(path_dir, sizeof(path_dir)),
 593         };
 594
 595         if (st.dir == NULL)
 596                 return -1;
 597
 598         dir = opendir(st.dir);
 599         if (!dir) {
 600                 pr_err("failed to open shell test directory: %s\n",
 601                         st.dir);
 602                 return -1;
 603         }
 604
 605         for_each_shell_test(dir, st.dir, ent) {
 606                 int curr = i++;
 607                 char desc[256];
 608                 struct test test = {
 609                         .desc = shell_test__description(desc, sizeof(desc), st.dir, ent->d_name),
 610                         .func = shell_test__run,
 611                         .priv = &st,
 612                 };
 613
 614                 if (!perf_test__matches(test.desc, curr, argc, argv))
 615                         continue;
 616
 617                 st.file = ent->d_name;
 618                 pr_info("%2d: %-*s:", i, width, test.desc);
 619                 test_and_print(&test, false, -1);
 620         }
 621
 622         closedir(dir);
 623         return 0;
 624 }
 625
 626 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 627 {
 628         struct test *t;
 629         unsigned int j;
 630         int i = 0;
 631         int width = shell_tests__max_desc_width();
 632
 633         for_each_test(j, t) {
 634                 int len = strlen(t->desc);
 635
 636                 if (width < len)
 637                         width = len;
 638         }
 639
 640         for_each_test(j, t) {
 641                 int curr = i++, err;
 642                 int subi;
 643
 644                 if (!perf_test__matches(t->desc, curr, argc, argv)) {
 645                         bool skip = true;
 646                         int subn;
 647
 648                         if (!t->subtest.get_nr)
 649                                 continue;
 650
 651                         subn = t->subtest.get_nr();
 652
 653                         for (subi = 0; subi < subn; subi++) {
 654                                 if (perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
 655                                         skip = false;
 656                         }
 657
 658                         if (skip)
 659                                 continue;
 660                 }
 661
 662                 if (t->is_supported && !t->is_supported()) {
 663                         pr_debug("%2d: %-*s: Disabled\n", i, width, t->desc);
 664                         continue;
 665                 }
 666
 667                 pr_info("%2d: %-*s:", i, width, t->desc);
 668
 669                 if (intlist__find(skiplist, i)) {
 670                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
 671                         continue;
 672                 }
 673
 674                 if (!t->subtest.get_nr) {
 675                         test_and_print(t, false, -1);
 676                 } else {
 677                         int subn = t->subtest.get_nr();
 678                         /*
 679                          * minus 2 to align with normal testcases.
 680                          * For subtest we print additional '.x' in number.
 681                          * for example:
 682                          *
 683                          * 35: Test LLVM searching and compiling                        :
 684                          * 35.1: Basic BPF llvm compiling test                          : Ok
 685                          */
 686                         int subw = width > 2 ? width - 2 : width;
 687                         bool skip = false;
 688
 689                         if (subn <= 0) {
 690                                 color_fprintf(stderr, PERF_COLOR_YELLOW,
 691                                               " Skip (not compiled in)\n");
 692                                 continue;
 693                         }
 694                         pr_info("\n");
 695
 696                         for (subi = 0; subi < subn; subi++) {
 697                                 int len = strlen(t->subtest.get_desc(subi));
 698
 699                                 if (subw < len)
 700                                         subw = len;
 701                         }
 702
 703                         for (subi = 0; subi < subn; subi++) {
 704                                 if (!perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
 705                                         continue;
 706
 707                                 pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
 708                                         t->subtest.get_desc(subi));
 709                                 err = test_and_print(t, skip, subi);
 710                                 if (err != TEST_OK && t->subtest.skip_if_fail)
 711                                         skip = true;
 712                         }
 713                 }
 714         }
 715
 716         return run_shell_tests(argc, argv, i, width);
 717 }
 718
 719 static int perf_test__list_shell(int argc, const char **argv, int i)
 720 {
 721         DIR *dir;
 722         struct dirent *ent;
 723         char path_dir[PATH_MAX];
 724         const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
 725
 726         if (path == NULL)
 727                 return -1;
 728
 729         dir = opendir(path);
 730         if (!dir)
 731                 return -1;
 732
 733         for_each_shell_test(dir, path, ent) {
 734                 int curr = i++;
 735                 char bf[256];
 736                 struct test t = {
 737                         .desc = shell_test__description(bf, sizeof(bf), path, ent->d_name),
 738                 };
 739
 740                 if (!perf_test__matches(t.desc, curr, argc, argv))
 741                         continue;
 742
 743                 pr_info("%2d: %s\n", i, t.desc);
 744         }
 745
 746         closedir(dir);
 747         return 0;
 748 }
 749
 750 static int perf_test__list(int argc, const char **argv)
 751 {
 752         unsigned int j;
 753         struct test *t;
 754         int i = 0;
 755
 756         for_each_test(j, t) {
 757                 int curr = i++;
 758
 759                 if (!perf_test__matches(t->desc, curr, argc, argv) ||
 760                     (t->is_supported && !t->is_supported()))
 761                         continue;
 762
 763                 pr_info("%2d: %s\n", i, t->desc);
 764
 765                 if (t->subtest.get_nr) {
 766                         int subn = t->subtest.get_nr();
 767                         int subi;
 768
 769                         for (subi = 0; subi < subn; subi++)
 770                                 pr_info("%2d:%1d: %s\n", i, subi + 1,
 771                                         t->subtest.get_desc(subi));
 772                 }
 773         }
 774
 775         perf_test__list_shell(argc, argv, i);
 776
 777         return 0;
 778 }
 779
 780 int cmd_test(int argc, const char **argv)
 781 {
 782         const char *test_usage[] = {
 783         "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
 784         NULL,
 785         };
 786         const char *skip = NULL;
 787         const struct option test_options[] = {
 788         OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
 789         OPT_INCR('v', "verbose", &verbose,
 790                     "be more verbose (show symbol address, etc)"),
 791         OPT_BOOLEAN('F', "dont-fork", &dont_fork,
 792                     "Do not fork for testcase"),
 793         OPT_END()
 794         };
 795         const char * const test_subcommands[] = { "list", NULL };
 796         struct intlist *skiplist = NULL;
 797         int ret = hists__init();
 798
 799         if (ret < 0)
 800                 return ret;
 801
 802         argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
 803         if (argc >= 1 && !strcmp(argv[0], "list"))
 804                 return perf_test__list(argc - 1, argv + 1);
 805
 806         symbol_conf.priv_size = sizeof(int);
 807         symbol_conf.sort_by_name = true;
 808         symbol_conf.try_vmlinux_path = true;
 809
 810         if (symbol__init(NULL) < 0)
 811                 return -1;
 812
 813         if (skip != NULL)
 814                 skiplist = intlist__new(skip);
 815         /*
 816          * Tests that create BPF maps, for instance, need more than the 64K
 817          * default:
 818          */
 819         rlimit__bump_memlock();
 820
 821         return __cmd_test(argc, argv, skiplist);
 822 }