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 #include <linux/zalloc.h>
  30
  31 static bool dont_fork;
  32
  33 struct test __weak arch_tests[] = {
  34         {
  35                 .func = NULL,
  36         },
  37 };
  38
  39 static struct test generic_tests[] = {
  40         {
  41                 .desc = "vmlinux symtab matches kallsyms",
  42                 .func = test__vmlinux_matches_kallsyms,
  43         },
  44         {
  45                 .desc = "Detect openat syscall event",
  46                 .func = test__openat_syscall_event,
  47         },
  48         {
  49                 .desc = "Detect openat syscall event on all cpus",
  50                 .func = test__openat_syscall_event_on_all_cpus,
  51         },
  52         {
  53                 .desc = "Read samples using the mmap interface",
  54                 .func = test__basic_mmap,
  55         },
  56         {
  57                 .desc = "Test data source output",
  58                 .func = test__mem,
  59         },
  60         {
  61                 .desc = "Parse event definition strings",
  62                 .func = test__parse_events,
  63         },
  64         {
  65                 .desc = "Simple expression parser",
  66                 .func = test__expr,
  67         },
  68         {
  69                 .desc = "PERF_RECORD_* events & perf_sample fields",
  70                 .func = test__PERF_RECORD,
  71         },
  72         {
  73                 .desc = "Parse perf pmu format",
  74                 .func = test__pmu,
  75         },
  76         {
  77                 .desc = "PMU events",
  78                 .func = test__pmu_events,
  79                 .subtest = {
  80                         .skip_if_fail   = false,
  81                         .get_nr         = test__pmu_events_subtest_get_nr,
  82                         .get_desc       = test__pmu_events_subtest_get_desc,
  83                         .skip_reason    = test__pmu_events_subtest_skip_reason,
  84                 },
  85
  86         },
  87         {
  88                 .desc = "DSO data read",
  89                 .func = test__dso_data,
  90         },
  91         {
  92                 .desc = "DSO data cache",
  93                 .func = test__dso_data_cache,
  94         },
  95         {
  96                 .desc = "DSO data reopen",
  97                 .func = test__dso_data_reopen,
  98         },
  99         {
 100                 .desc = "Roundtrip evsel->name",
 101                 .func = test__perf_evsel__roundtrip_name_test,
 102         },
 103         {
 104                 .desc = "Parse sched tracepoints fields",
 105                 .func = test__perf_evsel__tp_sched_test,
 106         },
 107         {
 108                 .desc = "syscalls:sys_enter_openat event fields",
 109                 .func = test__syscall_openat_tp_fields,
 110         },
 111         {
 112                 .desc = "Setup struct perf_event_attr",
 113                 .func = test__attr,
 114         },
 115         {
 116                 .desc = "Match and link multiple hists",
 117                 .func = test__hists_link,
 118         },
 119         {
 120                 .desc = "'import perf' in python",
 121                 .func = test__python_use,
 122         },
 123         {
 124                 .desc = "Breakpoint overflow signal handler",
 125                 .func = test__bp_signal,
 126                 .is_supported = test__bp_signal_is_supported,
 127         },
 128         {
 129                 .desc = "Breakpoint overflow sampling",
 130                 .func = test__bp_signal_overflow,
 131                 .is_supported = test__bp_signal_is_supported,
 132         },
 133         {
 134                 .desc = "Breakpoint accounting",
 135                 .func = test__bp_accounting,
 136                 .is_supported = test__bp_account_is_supported,
 137         },
 138         {
 139                 .desc = "Watchpoint",
 140                 .func = test__wp,
 141                 .is_supported = test__wp_is_supported,
 142                 .subtest = {
 143                         .skip_if_fail   = false,
 144                         .get_nr         = test__wp_subtest_get_nr,
 145                         .get_desc       = test__wp_subtest_get_desc,
 146                         .skip_reason    = test__wp_subtest_skip_reason,
 147                 },
 148         },
 149         {
 150                 .desc = "Number of exit events of a simple workload",
 151                 .func = test__task_exit,
 152         },
 153         {
 154                 .desc = "Software clock events period values",
 155                 .func = test__sw_clock_freq,
 156         },
 157         {
 158                 .desc = "Object code reading",
 159                 .func = test__code_reading,
 160         },
 161         {
 162                 .desc = "Sample parsing",
 163                 .func = test__sample_parsing,
 164         },
 165         {
 166                 .desc = "Use a dummy software event to keep tracking",
 167                 .func = test__keep_tracking,
 168         },
 169         {
 170                 .desc = "Parse with no sample_id_all bit set",
 171                 .func = test__parse_no_sample_id_all,
 172         },
 173         {
 174                 .desc = "Filter hist entries",
 175                 .func = test__hists_filter,
 176         },
 177         {
 178                 .desc = "Lookup mmap thread",
 179                 .func = test__mmap_thread_lookup,
 180         },
 181         {
 182                 .desc = "Share thread maps",
 183                 .func = test__thread_maps_share,
 184         },
 185         {
 186                 .desc = "Sort output of hist entries",
 187                 .func = test__hists_output,
 188         },
 189         {
 190                 .desc = "Cumulate child hist entries",
 191                 .func = test__hists_cumulate,
 192         },
 193         {
 194                 .desc = "Track with sched_switch",
 195                 .func = test__switch_tracking,
 196         },
 197         {
 198                 .desc = "Filter fds with revents mask in a fdarray",
 199                 .func = test__fdarray__filter,
 200         },
 201         {
 202                 .desc = "Add fd to a fdarray, making it autogrow",
 203                 .func = test__fdarray__add,
 204         },
 205         {
 206                 .desc = "kmod_path__parse",
 207                 .func = test__kmod_path__parse,
 208         },
 209         {
 210                 .desc = "Thread map",
 211                 .func = test__thread_map,
 212         },
 213         {
 214                 .desc = "LLVM search and compile",
 215                 .func = test__llvm,
 216                 .subtest = {
 217                         .skip_if_fail   = true,
 218                         .get_nr         = test__llvm_subtest_get_nr,
 219                         .get_desc       = test__llvm_subtest_get_desc,
 220                 },
 221         },
 222         {
 223                 .desc = "Session topology",
 224                 .func = test__session_topology,
 225         },
 226         {
 227                 .desc = "BPF filter",
 228                 .func = test__bpf,
 229                 .subtest = {
 230                         .skip_if_fail   = true,
 231                         .get_nr         = test__bpf_subtest_get_nr,
 232                         .get_desc       = test__bpf_subtest_get_desc,
 233                 },
 234         },
 235         {
 236                 .desc = "Synthesize thread map",
 237                 .func = test__thread_map_synthesize,
 238         },
 239         {
 240                 .desc = "Remove thread map",
 241                 .func = test__thread_map_remove,
 242         },
 243         {
 244                 .desc = "Synthesize cpu map",
 245                 .func = test__cpu_map_synthesize,
 246         },
 247         {
 248                 .desc = "Synthesize stat config",
 249                 .func = test__synthesize_stat_config,
 250         },
 251         {
 252                 .desc = "Synthesize stat",
 253                 .func = test__synthesize_stat,
 254         },
 255         {
 256                 .desc = "Synthesize stat round",
 257                 .func = test__synthesize_stat_round,
 258         },
 259         {
 260                 .desc = "Synthesize attr update",
 261                 .func = test__event_update,
 262         },
 263         {
 264                 .desc = "Event times",
 265                 .func = test__event_times,
 266         },
 267         {
 268                 .desc = "Read backward ring buffer",
 269                 .func = test__backward_ring_buffer,
 270         },
 271         {
 272                 .desc = "Print cpu map",
 273                 .func = test__cpu_map_print,
 274         },
 275         {
 276                 .desc = "Merge cpu map",
 277                 .func = test__cpu_map_merge,
 278         },
 279
 280         {
 281                 .desc = "Probe SDT events",
 282                 .func = test__sdt_event,
 283         },
 284         {
 285                 .desc = "is_printable_array",
 286                 .func = test__is_printable_array,
 287         },
 288         {
 289                 .desc = "Print bitmap",
 290                 .func = test__bitmap_print,
 291         },
 292         {
 293                 .desc = "perf hooks",
 294                 .func = test__perf_hooks,
 295         },
 296         {
 297                 .desc = "builtin clang support",
 298                 .func = test__clang,
 299                 .subtest = {
 300                         .skip_if_fail   = true,
 301                         .get_nr         = test__clang_subtest_get_nr,
 302                         .get_desc       = test__clang_subtest_get_desc,
 303                 }
 304         },
 305         {
 306                 .desc = "unit_number__scnprintf",
 307                 .func = test__unit_number__scnprint,
 308         },
 309         {
 310                 .desc = "mem2node",
 311                 .func = test__mem2node,
 312         },
 313         {
 314                 .desc = "time utils",
 315                 .func = test__time_utils,
 316         },
 317         {
 318                 .desc = "Test jit_write_elf",
 319                 .func = test__jit_write_elf,
 320         },
 321         {
 322                 .desc = "Test libpfm4 support",
 323                 .func = test__pfm,
 324                 .subtest = {
 325                         .skip_if_fail   = true,
 326                         .get_nr         = test__pfm_subtest_get_nr,
 327                         .get_desc       = test__pfm_subtest_get_desc,
 328                 }
 329         },
 330         {
 331                 .desc = "Test api io",
 332                 .func = test__api_io,
 333         },
 334         {
 335                 .desc = "maps__merge_in",
 336                 .func = test__maps__merge_in,
 337         },
 338         {
 339                 .desc = "Demangle Java",
 340                 .func = test__demangle_java,
 341         },
 342         {
 343                 .desc = "Demangle OCaml",
 344                 .func = test__demangle_ocaml,
 345         },
 346         {
 347                 .desc = "Parse and process metrics",
 348                 .func = test__parse_metric,
 349         },
 350         {
 351                 .desc = "PE file support",
 352                 .func = test__pe_file_parsing,
 353         },
 354         {
 355                 .desc = "Event expansion for cgroups",
 356                 .func = test__expand_cgroup_events,
 357         },
 358         {
 359                 .desc = "Convert perf time to TSC",
 360                 .func = test__perf_time_to_tsc,
 361                 .is_supported = test__tsc_is_supported,
 362         },
 363         {
 364                 .func = NULL,
 365         },
 366 };
 367
 368 static struct test *tests[] = {
 369         generic_tests,
 370         arch_tests,
 371 };
 372
 373 static bool perf_test__matches(const char *desc, int curr, int argc, const char *argv[])
 374 {
 375         int i;
 376
 377         if (argc == 0)
 378                 return true;
 379
 380         for (i = 0; i < argc; ++i) {
 381                 char *end;
 382                 long nr = strtoul(argv[i], &end, 10);
 383
 384                 if (*end == '\0') {
 385                         if (nr == curr + 1)
 386                                 return true;
 387                         continue;
 388                 }
 389
 390                 if (strcasestr(desc, argv[i]))
 391                         return true;
 392         }
 393
 394         return false;
 395 }
 396
 397 static int run_test(struct test *test, int subtest)
 398 {
 399         int status, err = -1, child = dont_fork ? 0 : fork();
 400         char sbuf[STRERR_BUFSIZE];
 401
 402         if (child < 0) {
 403                 pr_err("failed to fork test: %s\n",
 404                         str_error_r(errno, sbuf, sizeof(sbuf)));
 405                 return -1;
 406         }
 407
 408         if (!child) {
 409                 if (!dont_fork) {
 410                         pr_debug("test child forked, pid %d\n", getpid());
 411
 412                         if (verbose <= 0) {
 413                                 int nullfd = open("/dev/null", O_WRONLY);
 414
 415                                 if (nullfd >= 0) {
 416                                         close(STDERR_FILENO);
 417                                         close(STDOUT_FILENO);
 418
 419                                         dup2(nullfd, STDOUT_FILENO);
 420                                         dup2(STDOUT_FILENO, STDERR_FILENO);
 421                                         close(nullfd);
 422                                 }
 423                         } else {
 424                                 signal(SIGSEGV, sighandler_dump_stack);
 425                                 signal(SIGFPE, sighandler_dump_stack);
 426                         }
 427                 }
 428
 429                 err = test->func(test, subtest);
 430                 if (!dont_fork)
 431                         exit(err);
 432         }
 433
 434         if (!dont_fork) {
 435                 wait(&status);
 436
 437                 if (WIFEXITED(status)) {
 438                         err = (signed char)WEXITSTATUS(status);
 439                         pr_debug("test child finished with %d\n", err);
 440                 } else if (WIFSIGNALED(status)) {
 441                         err = -1;
 442                         pr_debug("test child interrupted\n");
 443                 }
 444         }
 445
 446         return err;
 447 }
 448
 449 #define for_each_test(j, t)                                     \
 450         for (j = 0; j < ARRAY_SIZE(tests); j++) \
 451                 for (t = &tests[j][0]; t->func; t++)
 452
 453 static int test_and_print(struct test *t, bool force_skip, int subtest)
 454 {
 455         int err;
 456
 457         if (!force_skip) {
 458                 pr_debug("\n--- start ---\n");
 459                 err = run_test(t, subtest);
 460                 pr_debug("---- end ----\n");
 461         } else {
 462                 pr_debug("\n--- force skipped ---\n");
 463                 err = TEST_SKIP;
 464         }
 465
 466         if (!t->subtest.get_nr)
 467                 pr_debug("%s:", t->desc);
 468         else
 469                 pr_debug("%s subtest %d:", t->desc, subtest + 1);
 470
 471         switch (err) {
 472         case TEST_OK:
 473                 pr_info(" Ok\n");
 474                 break;
 475         case TEST_SKIP: {
 476                 const char *skip_reason = NULL;
 477                 if (t->subtest.skip_reason)
 478                         skip_reason = t->subtest.skip_reason(subtest);
 479                 if (skip_reason)
 480                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", skip_reason);
 481                 else
 482                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
 483         }
 484                 break;
 485         case TEST_FAIL:
 486         default:
 487                 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
 488                 break;
 489         }
 490
 491         return err;
 492 }
 493
 494 static const char *shell_test__description(char *description, size_t size,
 495                                            const char *path, const char *name)
 496 {
 497         FILE *fp;
 498         char filename[PATH_MAX];
 499
 500         path__join(filename, sizeof(filename), path, name);
 501         fp = fopen(filename, "r");
 502         if (!fp)
 503                 return NULL;
 504
 505         /* Skip shebang */
 506         while (fgetc(fp) != '\n');
 507
 508         description = fgets(description, size, fp);
 509         fclose(fp);
 510
 511         return description ? strim(description + 1) : NULL;
 512 }
 513
 514 #define for_each_shell_test(entlist, nr, base, ent)                     \
 515         for (int __i = 0; __i < nr && (ent = entlist[__i]); __i++)      \
 516                 if (!is_directory(base, ent) && ent->d_name[0] != '.')
 517
 518 static const char *shell_tests__dir(char *path, size_t size)
 519 {
 520         const char *devel_dirs[] = { "./tools/perf/tests", "./tests", };
 521         char *exec_path;
 522         unsigned int i;
 523
 524         for (i = 0; i < ARRAY_SIZE(devel_dirs); ++i) {
 525                 struct stat st;
 526                 if (!lstat(devel_dirs[i], &st)) {
 527                         scnprintf(path, size, "%s/shell", devel_dirs[i]);
 528                         if (!lstat(devel_dirs[i], &st))
 529                                 return path;
 530                 }
 531         }
 532
 533         /* Then installed path. */
 534         exec_path = get_argv_exec_path();
 535         scnprintf(path, size, "%s/tests/shell", exec_path);
 536         free(exec_path);
 537         return path;
 538 }
 539
 540 static int shell_tests__max_desc_width(void)
 541 {
 542         struct dirent **entlist;
 543         struct dirent *ent;
 544         int n_dirs, e;
 545         char path_dir[PATH_MAX];
 546         const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
 547         int width = 0;
 548
 549         if (path == NULL)
 550                 return -1;
 551
 552         n_dirs = scandir(path, &entlist, NULL, alphasort);
 553         if (n_dirs == -1)
 554                 return -1;
 555
 556         for_each_shell_test(entlist, n_dirs, path, ent) {
 557                 char bf[256];
 558                 const char *desc = shell_test__description(bf, sizeof(bf), path, ent->d_name);
 559
 560                 if (desc) {
 561                         int len = strlen(desc);
 562
 563                         if (width < len)
 564                                 width = len;
 565                 }
 566         }
 567
 568         for (e = 0; e < n_dirs; e++)
 569                 zfree(&entlist[e]);
 570         free(entlist);
 571         return width;
 572 }
 573
 574 struct shell_test {
 575         const char *dir;
 576         const char *file;
 577 };
 578
 579 static int shell_test__run(struct test *test, int subdir __maybe_unused)
 580 {
 581         int err;
 582         char script[PATH_MAX];
 583         struct shell_test *st = test->priv;
 584
 585         path__join(script, sizeof(script) - 3, st->dir, st->file);
 586
 587         if (verbose)
 588                 strncat(script, " -v", sizeof(script) - strlen(script) - 1);
 589
 590         err = system(script);
 591         if (!err)
 592                 return TEST_OK;
 593
 594         return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
 595 }
 596
 597 static int run_shell_tests(int argc, const char *argv[], int i, int width)
 598 {
 599         struct dirent **entlist;
 600         struct dirent *ent;
 601         int n_dirs, e;
 602         char path_dir[PATH_MAX];
 603         struct shell_test st = {
 604                 .dir = shell_tests__dir(path_dir, sizeof(path_dir)),
 605         };
 606
 607         if (st.dir == NULL)
 608                 return -1;
 609
 610         n_dirs = scandir(st.dir, &entlist, NULL, alphasort);
 611         if (n_dirs == -1) {
 612                 pr_err("failed to open shell test directory: %s\n",
 613                         st.dir);
 614                 return -1;
 615         }
 616
 617         for_each_shell_test(entlist, n_dirs, st.dir, ent) {
 618                 int curr = i++;
 619                 char desc[256];
 620                 struct test test = {
 621                         .desc = shell_test__description(desc, sizeof(desc), st.dir, ent->d_name),
 622                         .func = shell_test__run,
 623                         .priv = &st,
 624                 };
 625
 626                 if (!perf_test__matches(test.desc, curr, argc, argv))
 627                         continue;
 628
 629                 st.file = ent->d_name;
 630                 pr_info("%2d: %-*s:", i, width, test.desc);
 631                 test_and_print(&test, false, -1);
 632         }
 633
 634         for (e = 0; e < n_dirs; e++)
 635                 zfree(&entlist[e]);
 636         free(entlist);
 637         return 0;
 638 }
 639
 640 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 641 {
 642         struct test *t;
 643         unsigned int j;
 644         int i = 0;
 645         int width = shell_tests__max_desc_width();
 646
 647         for_each_test(j, t) {
 648                 int len = strlen(t->desc);
 649
 650                 if (width < len)
 651                         width = len;
 652         }
 653
 654         for_each_test(j, t) {
 655                 int curr = i++, err;
 656                 int subi;
 657
 658                 if (!perf_test__matches(t->desc, curr, argc, argv)) {
 659                         bool skip = true;
 660                         int subn;
 661
 662                         if (!t->subtest.get_nr)
 663                                 continue;
 664
 665                         subn = t->subtest.get_nr();
 666
 667                         for (subi = 0; subi < subn; subi++) {
 668                                 if (perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
 669                                         skip = false;
 670                         }
 671
 672                         if (skip)
 673                                 continue;
 674                 }
 675
 676                 if (t->is_supported && !t->is_supported()) {
 677                         pr_debug("%2d: %-*s: Disabled\n", i, width, t->desc);
 678                         continue;
 679                 }
 680
 681                 pr_info("%2d: %-*s:", i, width, t->desc);
 682
 683                 if (intlist__find(skiplist, i)) {
 684                         color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
 685                         continue;
 686                 }
 687
 688                 if (!t->subtest.get_nr) {
 689                         test_and_print(t, false, -1);
 690                 } else {
 691                         int subn = t->subtest.get_nr();
 692                         /*
 693                          * minus 2 to align with normal testcases.
 694                          * For subtest we print additional '.x' in number.
 695                          * for example:
 696                          *
 697                          * 35: Test LLVM searching and compiling                        :
 698                          * 35.1: Basic BPF llvm compiling test                          : Ok
 699                          */
 700                         int subw = width > 2 ? width - 2 : width;
 701                         bool skip = false;
 702
 703                         if (subn <= 0) {
 704                                 color_fprintf(stderr, PERF_COLOR_YELLOW,
 705                                               " Skip (not compiled in)\n");
 706                                 continue;
 707                         }
 708                         pr_info("\n");
 709
 710                         for (subi = 0; subi < subn; subi++) {
 711                                 int len = strlen(t->subtest.get_desc(subi));
 712
 713                                 if (subw < len)
 714                                         subw = len;
 715                         }
 716
 717                         for (subi = 0; subi < subn; subi++) {
 718                                 if (!perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
 719                                         continue;
 720
 721                                 pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
 722                                         t->subtest.get_desc(subi));
 723                                 err = test_and_print(t, skip, subi);
 724                                 if (err != TEST_OK && t->subtest.skip_if_fail)
 725                                         skip = true;
 726                         }
 727                 }
 728         }
 729
 730         return run_shell_tests(argc, argv, i, width);
 731 }
 732
 733 static int perf_test__list_shell(int argc, const char **argv, int i)
 734 {
 735         struct dirent **entlist;
 736         struct dirent *ent;
 737         int n_dirs, e;
 738         char path_dir[PATH_MAX];
 739         const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
 740
 741         if (path == NULL)
 742                 return -1;
 743
 744         n_dirs = scandir(path, &entlist, NULL, alphasort);
 745         if (n_dirs == -1)
 746                 return -1;
 747
 748         for_each_shell_test(entlist, n_dirs, path, ent) {
 749                 int curr = i++;
 750                 char bf[256];
 751                 struct test t = {
 752                         .desc = shell_test__description(bf, sizeof(bf), path, ent->d_name),
 753                 };
 754
 755                 if (!perf_test__matches(t.desc, curr, argc, argv))
 756                         continue;
 757
 758                 pr_info("%2d: %s\n", i, t.desc);
 759
 760         }
 761
 762         for (e = 0; e < n_dirs; e++)
 763                 zfree(&entlist[e]);
 764         free(entlist);
 765         return 0;
 766 }
 767
 768 static int perf_test__list(int argc, const char **argv)
 769 {
 770         unsigned int j;
 771         struct test *t;
 772         int i = 0;
 773
 774         for_each_test(j, t) {
 775                 int curr = i++;
 776
 777                 if (!perf_test__matches(t->desc, curr, argc, argv) ||
 778                     (t->is_supported && !t->is_supported()))
 779                         continue;
 780
 781                 pr_info("%2d: %s\n", i, t->desc);
 782
 783                 if (t->subtest.get_nr) {
 784                         int subn = t->subtest.get_nr();
 785                         int subi;
 786
 787                         for (subi = 0; subi < subn; subi++)
 788                                 pr_info("%2d:%1d: %s\n", i, subi + 1,
 789                                         t->subtest.get_desc(subi));
 790                 }
 791         }
 792
 793         perf_test__list_shell(argc, argv, i);
 794
 795         return 0;
 796 }
 797
 798 int cmd_test(int argc, const char **argv)
 799 {
 800         const char *test_usage[] = {
 801         "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
 802         NULL,
 803         };
 804         const char *skip = NULL;
 805         const struct option test_options[] = {
 806         OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
 807         OPT_INCR('v', "verbose", &verbose,
 808                     "be more verbose (show symbol address, etc)"),
 809         OPT_BOOLEAN('F', "dont-fork", &dont_fork,
 810                     "Do not fork for testcase"),
 811         OPT_END()
 812         };
 813         const char * const test_subcommands[] = { "list", NULL };
 814         struct intlist *skiplist = NULL;
 815         int ret = hists__init();
 816
 817         if (ret < 0)
 818                 return ret;
 819
 820         argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
 821         if (argc >= 1 && !strcmp(argv[0], "list"))
 822                 return perf_test__list(argc - 1, argv + 1);
 823
 824         symbol_conf.priv_size = sizeof(int);
 825         symbol_conf.sort_by_name = true;
 826         symbol_conf.try_vmlinux_path = true;
 827
 828         if (symbol__init(NULL) < 0)
 829                 return -1;
 830
 831         if (skip != NULL)
 832                 skiplist = intlist__new(skip);
 833         /*
 834          * Tests that create BPF maps, for instance, need more than the 64K
 835          * default:
 836          */
 837         rlimit__bump_memlock();
 838
 839         return __cmd_test(argc, argv, skiplist);
 840 }