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 = "Demangle OCaml",
 343                 .func = test__demangle_ocaml,
 344         },
 345         {
 346                 .desc = "Parse and process metrics",
 347                 .func = test__parse_metric,
 348         },
 349         {
 350                 .desc = "PE file support",
 351                 .func = test__pe_file_parsing,
 352         },
 353         {
 354                 .desc = "Event expansion for cgroups",
 355                 .func = test__expand_cgroup_events,
 356         },
 357         {
 358                 .desc = "Convert perf time to TSC",
 359                 .func = test__perf_time_to_tsc,
 360                 .is_supported = test__tsc_is_supported,
 361         },
 362         {
 363                 .func = NULL,
 364         },
 365 };
 366
 367 static struct test *tests[] = {
 368         generic_tests,
 369         arch_tests,
 370 };
 371
 372 static bool perf_test__matches(const char *desc, int curr, int argc, const char *argv[])
 373 {
 374         int i;
 375
 376         if (argc == 0)
 377                 return true;
 378
 379         for (i = 0; i < argc; ++i) {
 380                 char *end;
 381                 long nr = strtoul(argv[i], &end, 10);
 382
 383                 if (*end == '\0') {
 384                         if (nr == curr + 1)
 385                                 return true;
 386                         continue;
 387                 }
 388
 389                 if (strcasestr(desc, argv[i]))
 390                         return true;
 391         }
 392
 393         return false;
 394 }
 395
 396 static int run_test(struct test *test, int subtest)
 397 {
 398         int status, err = -1, child = dont_fork ? 0 : fork();
 399         char sbuf[STRERR_BUFSIZE];
 400
 401         if (child < 0) {
 402                 pr_err("failed to fork test: %s\n",
 403                         str_error_r(errno, sbuf, sizeof(sbuf)));
 404                 return -1;
 405         }
 406
 407         if (!child) {
 408                 if (!dont_fork) {
 409                         pr_debug("test child forked, pid %d\n", getpid());
 410
 411                         if (verbose <= 0) {
 412                                 int nullfd = open("/dev/null", O_WRONLY);
 413
 414                                 if (nullfd >= 0) {
 415                                         close(STDERR_FILENO);
 416                                         close(STDOUT_FILENO);
 417
 418                                         dup2(nullfd, STDOUT_FILENO);
 419                                         dup2(STDOUT_FILENO, STDERR_FILENO);
 420                                         close(nullfd);
 421                                 }
 422                         } else {
 423                                 signal(SIGSEGV, sighandler_dump_stack);
 424                                 signal(SIGFPE, sighandler_dump_stack);
 425                         }
 426                 }
 427
 428                 err = test->func(test, subtest);
 429                 if (!dont_fork)
 430                         exit(err);
 431         }
 432
 433         if (!dont_fork) {
 434                 wait(&status);
 435
 436                 if (WIFEXITED(status)) {
 437                         err = (signed char)WEXITSTATUS(status);
 438                         pr_debug("test child finished with %d\n", err);
 439                 } else if (WIFSIGNALED(status)) {
 440                         err = -1;
 441                         pr_debug("test child interrupted\n");
 442                 }
 443         }
 444
 445         return err;
 446 }
 447
 448 #define for_each_test(j, t)                                     \
 449         for (j = 0; j < ARRAY_SIZE(tests); j++) \
 450                 for (t = &tests[j][0]; t->func; t++)
 451
 452 static int test_and_print(struct test *t, bool force_skip, int subtest)
 453 {
 454         int err;
 455
 456         if (!force_skip) {
 457                 pr_debug("\n--- start ---\n");
 458                 err = run_test(t, subtest);
 459                 pr_debug("---- end ----\n");
 460         } else {
 461                 pr_debug("\n--- force skipped ---\n");
 462                 err = TEST_SKIP;
 463         }
 464
 465         if (!t->subtest.get_nr)
 466                 pr_debug("%s:", t->desc);
 467         else
 468                 pr_debug("%s subtest %d:", t->desc, subtest + 1);
 469
 470         switch (err) {
 471         case TEST_OK:
 472                 pr_info(" Ok\n");
 473                 break;
 474         case TEST_SKIP: {
 475                 const char *skip_reason = NULL;
 476                 if (t->subtest.skip_reason)
 477                         skip_reason = t->subtest.skip_reason(subtest);
 478                 if (skip_reason)
 479                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", skip_reason);
 480                 else
 481                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
 482         }
 483                 break;
 484         case TEST_FAIL:
 485         default:
 486                 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
 487                 break;
 488         }
 489
 490         return err;
 491 }
 492
 493 static const char *shell_test__description(char *description, size_t size,
 494                                            const char *path, const char *name)
 495 {
 496         FILE *fp;
 497         char filename[PATH_MAX];
 498
 499         path__join(filename, sizeof(filename), path, name);
 500         fp = fopen(filename, "r");
 501         if (!fp)
 502                 return NULL;
 503
 504         /* Skip shebang */
 505         while (fgetc(fp) != '\n');
 506
 507         description = fgets(description, size, fp);
 508         fclose(fp);
 509
 510         return description ? strim(description + 1) : NULL;
 511 }
 512
 513 #define for_each_shell_test(entlist, nr, base, ent)                     \
 514         for (int __i = 0; __i < nr && (ent = entlist[__i]); __i++)      \
 515                 if (!is_directory(base, ent) && ent->d_name[0] != '.')
 516
 517 static const char *shell_tests__dir(char *path, size_t size)
 518 {
 519         const char *devel_dirs[] = { "./tools/perf/tests", "./tests", };
 520         char *exec_path;
 521         unsigned int i;
 522
 523         for (i = 0; i < ARRAY_SIZE(devel_dirs); ++i) {
 524                 struct stat st;
 525                 if (!lstat(devel_dirs[i], &st)) {
 526                         scnprintf(path, size, "%s/shell", devel_dirs[i]);
 527                         if (!lstat(devel_dirs[i], &st))
 528                                 return path;
 529                 }
 530         }
 531
 532         /* Then installed path. */
 533         exec_path = get_argv_exec_path();
 534         scnprintf(path, size, "%s/tests/shell", exec_path);
 535         free(exec_path);
 536         return path;
 537 }
 538
 539 static int shell_tests__max_desc_width(void)
 540 {
 541         struct dirent **entlist;
 542         struct dirent *ent;
 543         int n_dirs;
 544         char path_dir[PATH_MAX];
 545         const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
 546         int width = 0;
 547
 548         if (path == NULL)
 549                 return -1;
 550
 551         n_dirs = scandir(path, &entlist, NULL, alphasort);
 552         if (n_dirs == -1)
 553                 return -1;
 554
 555         for_each_shell_test(entlist, n_dirs, path, ent) {
 556                 char bf[256];
 557                 const char *desc = shell_test__description(bf, sizeof(bf), path, ent->d_name);
 558
 559                 if (desc) {
 560                         int len = strlen(desc);
 561
 562                         if (width < len)
 563                                 width = len;
 564                 }
 565         }
 566
 567         free(entlist);
 568
 569         return width;
 570 }
 571
 572 struct shell_test {
 573         const char *dir;
 574         const char *file;
 575 };
 576
 577 static int shell_test__run(struct test *test, int subdir __maybe_unused)
 578 {
 579         int err;
 580         char script[PATH_MAX];
 581         struct shell_test *st = test->priv;
 582
 583         path__join(script, sizeof(script), st->dir, st->file);
 584
 585         err = system(script);
 586         if (!err)
 587                 return TEST_OK;
 588
 589         return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
 590 }
 591
 592 static int run_shell_tests(int argc, const char *argv[], int i, int width)
 593 {
 594         struct dirent **entlist;
 595         struct dirent *ent;
 596         int n_dirs;
 597         char path_dir[PATH_MAX];
 598         struct shell_test st = {
 599                 .dir = shell_tests__dir(path_dir, sizeof(path_dir)),
 600         };
 601
 602         if (st.dir == NULL)
 603                 return -1;
 604
 605         n_dirs = scandir(st.dir, &entlist, NULL, alphasort);
 606         if (n_dirs == -1) {
 607                 pr_err("failed to open shell test directory: %s\n",
 608                         st.dir);
 609                 return -1;
 610         }
 611
 612         for_each_shell_test(entlist, n_dirs, st.dir, ent) {
 613                 int curr = i++;
 614                 char desc[256];
 615                 struct test test = {
 616                         .desc = shell_test__description(desc, sizeof(desc), st.dir, ent->d_name),
 617                         .func = shell_test__run,
 618                         .priv = &st,
 619                 };
 620
 621                 if (!perf_test__matches(test.desc, curr, argc, argv))
 622                         continue;
 623
 624                 st.file = ent->d_name;
 625                 pr_info("%2d: %-*s:", i, width, test.desc);
 626                 test_and_print(&test, false, -1);
 627         }
 628
 629         free(entlist);
 630         return 0;
 631 }
 632
 633 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 634 {
 635         struct test *t;
 636         unsigned int j;
 637         int i = 0;
 638         int width = shell_tests__max_desc_width();
 639
 640         for_each_test(j, t) {
 641                 int len = strlen(t->desc);
 642
 643                 if (width < len)
 644                         width = len;
 645         }
 646
 647         for_each_test(j, t) {
 648                 int curr = i++, err;
 649                 int subi;
 650
 651                 if (!perf_test__matches(t->desc, curr, argc, argv)) {
 652                         bool skip = true;
 653                         int subn;
 654
 655                         if (!t->subtest.get_nr)
 656                                 continue;
 657
 658                         subn = t->subtest.get_nr();
 659
 660                         for (subi = 0; subi < subn; subi++) {
 661                                 if (perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
 662                                         skip = false;
 663                         }
 664
 665                         if (skip)
 666                                 continue;
 667                 }
 668
 669                 if (t->is_supported && !t->is_supported()) {
 670                         pr_debug("%2d: %-*s: Disabled\n", i, width, t->desc);
 671                         continue;
 672                 }
 673
 674                 pr_info("%2d: %-*s:", i, width, t->desc);
 675
 676                 if (intlist__find(skiplist, i)) {
 677                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
 678                         continue;
 679                 }
 680
 681                 if (!t->subtest.get_nr) {
 682                         test_and_print(t, false, -1);
 683                 } else {
 684                         int subn = t->subtest.get_nr();
 685                         /*
 686                          * minus 2 to align with normal testcases.
 687                          * For subtest we print additional '.x' in number.
 688                          * for example:
 689                          *
 690                          * 35: Test LLVM searching and compiling                        :
 691                          * 35.1: Basic BPF llvm compiling test                          : Ok
 692                          */
 693                         int subw = width > 2 ? width - 2 : width;
 694                         bool skip = false;
 695
 696                         if (subn <= 0) {
 697                                 color_fprintf(stderr, PERF_COLOR_YELLOW,
 698                                               " Skip (not compiled in)\n");
 699                                 continue;
 700                         }
 701                         pr_info("\n");
 702
 703                         for (subi = 0; subi < subn; subi++) {
 704                                 int len = strlen(t->subtest.get_desc(subi));
 705
 706                                 if (subw < len)
 707                                         subw = len;
 708                         }
 709
 710                         for (subi = 0; subi < subn; subi++) {
 711                                 if (!perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
 712                                         continue;
 713
 714                                 pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
 715                                         t->subtest.get_desc(subi));
 716                                 err = test_and_print(t, skip, subi);
 717                                 if (err != TEST_OK && t->subtest.skip_if_fail)
 718                                         skip = true;
 719                         }
 720                 }
 721         }
 722
 723         return run_shell_tests(argc, argv, i, width);
 724 }
 725
 726 static int perf_test__list_shell(int argc, const char **argv, int i)
 727 {
 728         struct dirent **entlist;
 729         struct dirent *ent;
 730         int n_dirs;
 731         char path_dir[PATH_MAX];
 732         const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
 733
 734         if (path == NULL)
 735                 return -1;
 736
 737         n_dirs = scandir(path, &entlist, NULL, alphasort);
 738         if (n_dirs == -1)
 739                 return -1;
 740
 741         for_each_shell_test(entlist, n_dirs, path, ent) {
 742                 int curr = i++;
 743                 char bf[256];
 744                 struct test t = {
 745                         .desc = shell_test__description(bf, sizeof(bf), path, ent->d_name),
 746                 };
 747
 748                 if (!perf_test__matches(t.desc, curr, argc, argv))
 749                         continue;
 750
 751                 pr_info("%2d: %s\n", i, t.desc);
 752         }
 753
 754         free(entlist);
 755         return 0;
 756 }
 757
 758 static int perf_test__list(int argc, const char **argv)
 759 {
 760         unsigned int j;
 761         struct test *t;
 762         int i = 0;
 763
 764         for_each_test(j, t) {
 765                 int curr = i++;
 766
 767                 if (!perf_test__matches(t->desc, curr, argc, argv) ||
 768                     (t->is_supported && !t->is_supported()))
 769                         continue;
 770
 771                 pr_info("%2d: %s\n", i, t->desc);
 772
 773                 if (t->subtest.get_nr) {
 774                         int subn = t->subtest.get_nr();
 775                         int subi;
 776
 777                         for (subi = 0; subi < subn; subi++)
 778                                 pr_info("%2d:%1d: %s\n", i, subi + 1,
 779                                         t->subtest.get_desc(subi));
 780                 }
 781         }
 782
 783         perf_test__list_shell(argc, argv, i);
 784
 785         return 0;
 786 }
 787
 788 int cmd_test(int argc, const char **argv)
 789 {
 790         const char *test_usage[] = {
 791         "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
 792         NULL,
 793         };
 794         const char *skip = NULL;
 795         const struct option test_options[] = {
 796         OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
 797         OPT_INCR('v', "verbose", &verbose,
 798                     "be more verbose (show symbol address, etc)"),
 799         OPT_BOOLEAN('F', "dont-fork", &dont_fork,
 800                     "Do not fork for testcase"),
 801         OPT_END()
 802         };
 803         const char * const test_subcommands[] = { "list", NULL };
 804         struct intlist *skiplist = NULL;
 805         int ret = hists__init();
 806
 807         if (ret < 0)
 808                 return ret;
 809
 810         argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
 811         if (argc >= 1 && !strcmp(argv[0], "list"))
 812                 return perf_test__list(argc - 1, argv + 1);
 813
 814         symbol_conf.priv_size = sizeof(int);
 815         symbol_conf.sort_by_name = true;
 816         symbol_conf.try_vmlinux_path = true;
 817
 818         if (symbol__init(NULL) < 0)
 819                 return -1;
 820
 821         if (skip != NULL)
 822                 skiplist = intlist__new(skip);
 823         /*
 824          * Tests that create BPF maps, for instance, need more than the 64K
 825          * default:
 826          */
 827         rlimit__bump_memlock();
 828
 829         return __cmd_test(argc, argv, skiplist);
 830 }