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 <ctype.h> 8 #include <fcntl.h> 9 #include <errno.h> 10 #ifdef HAVE_BACKTRACE_SUPPORT 11 #include <execinfo.h> 12 #endif 13 #include <poll.h> 14 #include <unistd.h> 15 #include <setjmp.h> 16 #include <string.h> 17 #include <stdlib.h> 18 #include <sys/types.h> 19 #include <dirent.h> 20 #include <sys/wait.h> 21 #include <sys/stat.h> 22 #include "builtin.h" 23 #include "config.h" 24 #include "hist.h" 25 #include "intlist.h" 26 #include "tests.h" 27 #include "debug.h" 28 #include "color.h" 29 #include <subcmd/parse-options.h> 30 #include <subcmd/run-command.h> 31 #include "string2.h" 32 #include "symbol.h" 33 #include "util/rlimit.h" 34 #include "util/strbuf.h" 35 #include <linux/kernel.h> 36 #include <linux/string.h> 37 #include <subcmd/exec-cmd.h> 38 #include <linux/zalloc.h> 39 40 #include "tests-scripts.h" 41 42 /* 43 * Command line option to not fork the test running in the same process and 44 * making them easier to debug. 45 */ 46 static bool dont_fork; 47 /* Fork the tests in parallel and wait for their completion. */ 48 static bool sequential; 49 /* Number of times each test is run. */ 50 static unsigned int runs_per_test = 1; 51 const char *dso_to_test; 52 const char *test_objdump_path = "objdump"; 53 54 /* 55 * List of architecture specific tests. Not a weak symbol as the array length is 56 * dependent on the initialization, as such GCC with LTO complains of 57 * conflicting definitions with a weak symbol. 58 */ 59 #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || defined(__powerpc64__) 60 extern struct test_suite *arch_tests[]; 61 #else 62 static struct test_suite *arch_tests[] = { 63 NULL, 64 }; 65 #endif 66 67 static struct test_suite *generic_tests[] = { 68 &suite__vmlinux_matches_kallsyms, 69 &suite__openat_syscall_event, 70 &suite__openat_syscall_event_on_all_cpus, 71 &suite__basic_mmap, 72 &suite__mem, 73 &suite__parse_events, 74 &suite__expr, 75 &suite__PERF_RECORD, 76 &suite__pmu, 77 &suite__pmu_events, 78 &suite__hwmon_pmu, 79 &suite__tool_pmu, 80 &suite__dso_data, 81 &suite__perf_evsel__roundtrip_name_test, 82 #ifdef HAVE_LIBTRACEEVENT 83 &suite__perf_evsel__tp_sched_test, 84 &suite__syscall_openat_tp_fields, 85 #endif 86 &suite__hists_link, 87 &suite__bp_signal, 88 &suite__bp_signal_overflow, 89 &suite__bp_accounting, 90 &suite__wp, 91 &suite__task_exit, 92 &suite__sw_clock_freq, 93 &suite__code_reading, 94 &suite__sample_parsing, 95 &suite__keep_tracking, 96 &suite__parse_no_sample_id_all, 97 &suite__hists_filter, 98 &suite__mmap_thread_lookup, 99 &suite__thread_maps_share, 100 &suite__hists_output, 101 &suite__hists_cumulate, 102 #ifdef HAVE_LIBTRACEEVENT 103 &suite__switch_tracking, 104 #endif 105 &suite__fdarray__filter, 106 &suite__fdarray__add, 107 &suite__kmod_path__parse, 108 &suite__thread_map, 109 &suite__session_topology, 110 &suite__thread_map_synthesize, 111 &suite__thread_map_remove, 112 &suite__cpu_map, 113 &suite__synthesize_stat_config, 114 &suite__synthesize_stat, 115 &suite__synthesize_stat_round, 116 &suite__event_update, 117 &suite__event_times, 118 &suite__backward_ring_buffer, 119 &suite__sdt_event, 120 &suite__is_printable_array, 121 &suite__bitmap_print, 122 &suite__perf_hooks, 123 &suite__unit_number__scnprint, 124 &suite__mem2node, 125 &suite__time_utils, 126 &suite__jit_write_elf, 127 &suite__pfm, 128 &suite__api_io, 129 &suite__maps, 130 &suite__demangle_java, 131 &suite__demangle_ocaml, 132 &suite__demangle_rust, 133 &suite__parse_metric, 134 &suite__pe_file_parsing, 135 &suite__expand_cgroup_events, 136 &suite__perf_time_to_tsc, 137 &suite__dlfilter, 138 &suite__sigtrap, 139 &suite__event_groups, 140 &suite__symbols, 141 &suite__util, 142 &suite__subcmd_help, 143 &suite__kallsyms_split, 144 NULL, 145 }; 146 147 static struct test_workload *workloads[] = { 148 &workload__noploop, 149 &workload__thloop, 150 &workload__leafloop, 151 &workload__sqrtloop, 152 &workload__brstack, 153 &workload__datasym, 154 &workload__landlock, 155 &workload__traploop, 156 }; 157 158 #define workloads__for_each(workload) \ 159 for (unsigned i = 0; i < ARRAY_SIZE(workloads) && ({ workload = workloads[i]; 1; }); i++) 160 161 #define test_suite__for_each_test_case(suite, idx) \ 162 for (idx = 0; (suite)->test_cases && (suite)->test_cases[idx].name != NULL; idx++) 163 164 static void close_parent_fds(void) 165 { 166 DIR *dir = opendir("/proc/self/fd"); 167 struct dirent *ent; 168 169 while ((ent = readdir(dir))) { 170 char *end; 171 long fd; 172 173 if (ent->d_type != DT_LNK) 174 continue; 175 176 if (!isdigit(ent->d_name[0])) 177 continue; 178 179 fd = strtol(ent->d_name, &end, 10); 180 if (*end) 181 continue; 182 183 if (fd <= 3 || fd == dirfd(dir)) 184 continue; 185 186 close(fd); 187 } 188 closedir(dir); 189 } 190 191 static void check_leaks(void) 192 { 193 DIR *dir = opendir("/proc/self/fd"); 194 struct dirent *ent; 195 int leaks = 0; 196 197 while ((ent = readdir(dir))) { 198 char path[PATH_MAX]; 199 char *end; 200 long fd; 201 ssize_t len; 202 203 if (ent->d_type != DT_LNK) 204 continue; 205 206 if (!isdigit(ent->d_name[0])) 207 continue; 208 209 fd = strtol(ent->d_name, &end, 10); 210 if (*end) 211 continue; 212 213 if (fd <= 3 || fd == dirfd(dir)) 214 continue; 215 216 leaks++; 217 len = readlinkat(dirfd(dir), ent->d_name, path, sizeof(path)); 218 if (len > 0 && (size_t)len < sizeof(path)) 219 path[len] = '\0'; 220 else 221 strncpy(path, ent->d_name, sizeof(path)); 222 pr_err("Leak of file descriptor %s that opened: '%s'\n", ent->d_name, path); 223 } 224 closedir(dir); 225 if (leaks) 226 abort(); 227 } 228 229 static int test_suite__num_test_cases(const struct test_suite *t) 230 { 231 int num; 232 233 test_suite__for_each_test_case(t, num); 234 235 return num; 236 } 237 238 static const char *skip_reason(const struct test_suite *t, int test_case) 239 { 240 if (!t->test_cases) 241 return NULL; 242 243 return t->test_cases[test_case >= 0 ? test_case : 0].skip_reason; 244 } 245 246 static const char *test_description(const struct test_suite *t, int test_case) 247 { 248 if (t->test_cases && test_case >= 0) 249 return t->test_cases[test_case].desc; 250 251 return t->desc; 252 } 253 254 static test_fnptr test_function(const struct test_suite *t, int test_case) 255 { 256 if (test_case <= 0) 257 return t->test_cases[0].run_case; 258 259 return t->test_cases[test_case].run_case; 260 } 261 262 static bool test_exclusive(const struct test_suite *t, int test_case) 263 { 264 if (test_case <= 0) 265 return t->test_cases[0].exclusive; 266 267 return t->test_cases[test_case].exclusive; 268 } 269 270 static bool perf_test__matches(const char *desc, int suite_num, int argc, const char *argv[]) 271 { 272 int i; 273 274 if (argc == 0) 275 return true; 276 277 for (i = 0; i < argc; ++i) { 278 char *end; 279 long nr = strtoul(argv[i], &end, 10); 280 281 if (*end == '\0') { 282 if (nr == suite_num + 1) 283 return true; 284 continue; 285 } 286 287 if (strcasestr(desc, argv[i])) 288 return true; 289 } 290 291 return false; 292 } 293 294 struct child_test { 295 struct child_process process; 296 struct test_suite *test; 297 int suite_num; 298 int test_case_num; 299 }; 300 301 static jmp_buf run_test_jmp_buf; 302 303 static void child_test_sig_handler(int sig) 304 { 305 #ifdef HAVE_BACKTRACE_SUPPORT 306 void *stackdump[32]; 307 size_t stackdump_size; 308 #endif 309 310 fprintf(stderr, "\n---- unexpected signal (%d) ----\n", sig); 311 #ifdef HAVE_BACKTRACE_SUPPORT 312 stackdump_size = backtrace(stackdump, ARRAY_SIZE(stackdump)); 313 __dump_stack(stderr, stackdump, stackdump_size); 314 #endif 315 siglongjmp(run_test_jmp_buf, sig); 316 } 317 318 static int run_test_child(struct child_process *process) 319 { 320 const int signals[] = { 321 SIGABRT, SIGBUS, SIGFPE, SIGILL, SIGINT, SIGPIPE, SIGQUIT, SIGSEGV, SIGTERM, 322 }; 323 struct child_test *child = container_of(process, struct child_test, process); 324 int err; 325 326 close_parent_fds(); 327 328 err = sigsetjmp(run_test_jmp_buf, 1); 329 if (err) { 330 /* Received signal. */ 331 err = err > 0 ? -err : -1; 332 goto err_out; 333 } 334 335 for (size_t i = 0; i < ARRAY_SIZE(signals); i++) 336 signal(signals[i], child_test_sig_handler); 337 338 pr_debug("--- start ---\n"); 339 pr_debug("test child forked, pid %d\n", getpid()); 340 err = test_function(child->test, child->test_case_num)(child->test, child->test_case_num); 341 pr_debug("---- end(%d) ----\n", err); 342 343 check_leaks(); 344 err_out: 345 fflush(NULL); 346 for (size_t i = 0; i < ARRAY_SIZE(signals); i++) 347 signal(signals[i], SIG_DFL); 348 return -err; 349 } 350 351 #define TEST_RUNNING -3 352 353 static int print_test_result(struct test_suite *t, int curr_suite, int curr_test_case, 354 int result, int width, int running) 355 { 356 if (test_suite__num_test_cases(t) > 1) { 357 int subw = width > 2 ? width - 2 : width; 358 359 pr_info("%3d.%1d: %-*s:", curr_suite + 1, curr_test_case + 1, subw, 360 test_description(t, curr_test_case)); 361 } else 362 pr_info("%3d: %-*s:", curr_suite + 1, width, test_description(t, curr_test_case)); 363 364 switch (result) { 365 case TEST_RUNNING: 366 color_fprintf(stderr, PERF_COLOR_YELLOW, " Running (%d active)\n", running); 367 break; 368 case TEST_OK: 369 pr_info(" Ok\n"); 370 break; 371 case TEST_SKIP: { 372 const char *reason = skip_reason(t, curr_test_case); 373 374 if (reason) 375 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", reason); 376 else 377 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n"); 378 } 379 break; 380 case TEST_FAIL: 381 default: 382 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n"); 383 break; 384 } 385 386 return 0; 387 } 388 389 static void finish_test(struct child_test **child_tests, int running_test, int child_test_num, 390 int width) 391 { 392 struct child_test *child_test = child_tests[running_test]; 393 struct test_suite *t; 394 int curr_suite, curr_test_case, err; 395 bool err_done = false; 396 struct strbuf err_output = STRBUF_INIT; 397 int last_running = -1; 398 int ret; 399 400 if (child_test == NULL) { 401 /* Test wasn't started. */ 402 return; 403 } 404 t = child_test->test; 405 curr_suite = child_test->suite_num; 406 curr_test_case = child_test->test_case_num; 407 err = child_test->process.err; 408 /* 409 * For test suites with subtests, display the suite name ahead of the 410 * sub test names. 411 */ 412 if (test_suite__num_test_cases(t) > 1 && curr_test_case == 0) 413 pr_info("%3d: %-*s:\n", curr_suite + 1, width, test_description(t, -1)); 414 415 /* 416 * Busy loop reading from the child's stdout/stderr that are set to be 417 * non-blocking until EOF. 418 */ 419 if (err > 0) 420 fcntl(err, F_SETFL, O_NONBLOCK); 421 if (verbose > 1) { 422 if (test_suite__num_test_cases(t) > 1) 423 pr_info("%3d.%1d: %s:\n", curr_suite + 1, curr_test_case + 1, 424 test_description(t, curr_test_case)); 425 else 426 pr_info("%3d: %s:\n", curr_suite + 1, test_description(t, -1)); 427 } 428 while (!err_done) { 429 struct pollfd pfds[1] = { 430 { .fd = err, 431 .events = POLLIN | POLLERR | POLLHUP | POLLNVAL, 432 }, 433 }; 434 if (perf_use_color_default) { 435 int running = 0; 436 437 for (int y = running_test; y < child_test_num; y++) { 438 if (child_tests[y] == NULL) 439 continue; 440 if (check_if_command_finished(&child_tests[y]->process) == 0) 441 running++; 442 } 443 if (running != last_running) { 444 if (last_running != -1) { 445 /* 446 * Erase "Running (.. active)" line 447 * printed before poll/sleep. 448 */ 449 fprintf(debug_file(), PERF_COLOR_DELETE_LINE); 450 } 451 print_test_result(t, curr_suite, curr_test_case, TEST_RUNNING, 452 width, running); 453 last_running = running; 454 } 455 } 456 457 err_done = true; 458 if (err <= 0) { 459 /* No child stderr to poll, sleep for 10ms for child to complete. */ 460 usleep(10 * 1000); 461 } else { 462 /* Poll to avoid excessive spinning, timeout set for 100ms. */ 463 poll(pfds, ARRAY_SIZE(pfds), /*timeout=*/100); 464 if (pfds[0].revents) { 465 char buf[512]; 466 ssize_t len; 467 468 len = read(err, buf, sizeof(buf) - 1); 469 470 if (len > 0) { 471 err_done = false; 472 buf[len] = '\0'; 473 strbuf_addstr(&err_output, buf); 474 } 475 } 476 } 477 if (err_done) 478 err_done = check_if_command_finished(&child_test->process); 479 } 480 if (perf_use_color_default && last_running != -1) { 481 /* Erase "Running (.. active)" line printed before poll/sleep. */ 482 fprintf(debug_file(), PERF_COLOR_DELETE_LINE); 483 } 484 /* Clean up child process. */ 485 ret = finish_command(&child_test->process); 486 if (verbose > 1 || (verbose == 1 && ret == TEST_FAIL)) 487 fprintf(stderr, "%s", err_output.buf); 488 489 strbuf_release(&err_output); 490 print_test_result(t, curr_suite, curr_test_case, ret, width, /*running=*/0); 491 if (err > 0) 492 close(err); 493 zfree(&child_tests[running_test]); 494 } 495 496 static int start_test(struct test_suite *test, int curr_suite, int curr_test_case, 497 struct child_test **child, int width, int pass) 498 { 499 int err; 500 501 *child = NULL; 502 if (dont_fork) { 503 if (pass == 1) { 504 pr_debug("--- start ---\n"); 505 err = test_function(test, curr_test_case)(test, curr_test_case); 506 pr_debug("---- end ----\n"); 507 print_test_result(test, curr_suite, curr_test_case, err, width, 508 /*running=*/0); 509 } 510 return 0; 511 } 512 if (pass == 1 && !sequential && test_exclusive(test, curr_test_case)) { 513 /* When parallel, skip exclusive tests on the first pass. */ 514 return 0; 515 } 516 if (pass != 1 && (sequential || !test_exclusive(test, curr_test_case))) { 517 /* Sequential and non-exclusive tests were run on the first pass. */ 518 return 0; 519 } 520 *child = zalloc(sizeof(**child)); 521 if (!*child) 522 return -ENOMEM; 523 524 (*child)->test = test; 525 (*child)->suite_num = curr_suite; 526 (*child)->test_case_num = curr_test_case; 527 (*child)->process.pid = -1; 528 (*child)->process.no_stdin = 1; 529 if (verbose <= 0) { 530 (*child)->process.no_stdout = 1; 531 (*child)->process.no_stderr = 1; 532 } else { 533 (*child)->process.stdout_to_stderr = 1; 534 (*child)->process.out = -1; 535 (*child)->process.err = -1; 536 } 537 (*child)->process.no_exec_cmd = run_test_child; 538 if (sequential || pass == 2) { 539 err = start_command(&(*child)->process); 540 if (err) 541 return err; 542 finish_test(child, /*running_test=*/0, /*child_test_num=*/1, width); 543 return 0; 544 } 545 return start_command(&(*child)->process); 546 } 547 548 /* State outside of __cmd_test for the sake of the signal handler. */ 549 550 static size_t num_tests; 551 static struct child_test **child_tests; 552 static jmp_buf cmd_test_jmp_buf; 553 554 static void cmd_test_sig_handler(int sig) 555 { 556 siglongjmp(cmd_test_jmp_buf, sig); 557 } 558 559 static int __cmd_test(struct test_suite **suites, int argc, const char *argv[], 560 struct intlist *skiplist) 561 { 562 static int width = 0; 563 int err = 0; 564 565 for (struct test_suite **t = suites; *t; t++) { 566 int i, len = strlen(test_description(*t, -1)); 567 568 if (width < len) 569 width = len; 570 571 test_suite__for_each_test_case(*t, i) { 572 len = strlen(test_description(*t, i)); 573 if (width < len) 574 width = len; 575 num_tests += runs_per_test; 576 } 577 } 578 child_tests = calloc(num_tests, sizeof(*child_tests)); 579 if (!child_tests) 580 return -ENOMEM; 581 582 err = sigsetjmp(cmd_test_jmp_buf, 1); 583 if (err) { 584 pr_err("\nSignal (%d) while running tests.\nTerminating tests with the same signal\n", 585 err); 586 for (size_t x = 0; x < num_tests; x++) { 587 struct child_test *child_test = child_tests[x]; 588 589 if (!child_test || child_test->process.pid <= 0) 590 continue; 591 592 pr_debug3("Killing %d pid %d\n", 593 child_test->suite_num + 1, 594 child_test->process.pid); 595 kill(child_test->process.pid, err); 596 } 597 goto err_out; 598 } 599 signal(SIGINT, cmd_test_sig_handler); 600 signal(SIGTERM, cmd_test_sig_handler); 601 602 /* 603 * In parallel mode pass 1 runs non-exclusive tests in parallel, pass 2 604 * runs the exclusive tests sequentially. In other modes all tests are 605 * run in pass 1. 606 */ 607 for (int pass = 1; pass <= 2; pass++) { 608 int child_test_num = 0; 609 int curr_suite = 0; 610 611 for (struct test_suite **t = suites; *t; t++, curr_suite++) { 612 int curr_test_case; 613 bool suite_matched = false; 614 615 if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) { 616 /* 617 * Test suite shouldn't be run based on 618 * description. See if any test case should. 619 */ 620 bool skip = true; 621 622 test_suite__for_each_test_case(*t, curr_test_case) { 623 if (perf_test__matches(test_description(*t, curr_test_case), 624 curr_suite, argc, argv)) { 625 skip = false; 626 break; 627 } 628 } 629 if (skip) 630 continue; 631 } else { 632 suite_matched = true; 633 } 634 635 if (intlist__find(skiplist, curr_suite + 1)) { 636 pr_info("%3d: %-*s:", curr_suite + 1, width, 637 test_description(*t, -1)); 638 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); 639 continue; 640 } 641 642 for (unsigned int run = 0; run < runs_per_test; run++) { 643 test_suite__for_each_test_case(*t, curr_test_case) { 644 if (!suite_matched && 645 !perf_test__matches(test_description(*t, curr_test_case), 646 curr_suite, argc, argv)) 647 continue; 648 err = start_test(*t, curr_suite, curr_test_case, 649 &child_tests[child_test_num++], 650 width, pass); 651 if (err) 652 goto err_out; 653 } 654 } 655 } 656 if (!sequential) { 657 /* Parallel mode starts tests but doesn't finish them. Do that now. */ 658 for (size_t x = 0; x < num_tests; x++) 659 finish_test(child_tests, x, num_tests, width); 660 } 661 } 662 err_out: 663 signal(SIGINT, SIG_DFL); 664 signal(SIGTERM, SIG_DFL); 665 if (err) { 666 pr_err("Internal test harness failure. Completing any started tests:\n:"); 667 for (size_t x = 0; x < num_tests; x++) 668 finish_test(child_tests, x, num_tests, width); 669 } 670 free(child_tests); 671 return err; 672 } 673 674 static int perf_test__list(FILE *fp, struct test_suite **suites, int argc, const char **argv) 675 { 676 int curr_suite = 0; 677 678 for (struct test_suite **t = suites; *t; t++, curr_suite++) { 679 int curr_test_case; 680 681 if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) 682 continue; 683 684 fprintf(fp, "%3d: %s\n", curr_suite + 1, test_description(*t, -1)); 685 686 if (test_suite__num_test_cases(*t) <= 1) 687 continue; 688 689 test_suite__for_each_test_case(*t, curr_test_case) { 690 fprintf(fp, "%3d.%1d: %s\n", curr_suite + 1, curr_test_case + 1, 691 test_description(*t, curr_test_case)); 692 } 693 } 694 return 0; 695 } 696 697 static int workloads__fprintf_list(FILE *fp) 698 { 699 struct test_workload *twl; 700 int printed = 0; 701 702 workloads__for_each(twl) 703 printed += fprintf(fp, "%s\n", twl->name); 704 705 return printed; 706 } 707 708 static int run_workload(const char *work, int argc, const char **argv) 709 { 710 struct test_workload *twl; 711 712 workloads__for_each(twl) { 713 if (!strcmp(twl->name, work)) 714 return twl->func(argc, argv); 715 } 716 717 pr_info("No workload found: %s\n", work); 718 return -1; 719 } 720 721 static int perf_test__config(const char *var, const char *value, 722 void *data __maybe_unused) 723 { 724 if (!strcmp(var, "annotate.objdump")) 725 test_objdump_path = value; 726 727 return 0; 728 } 729 730 static struct test_suite **build_suites(void) 731 { 732 /* 733 * TODO: suites is static to avoid needing to clean up the scripts tests 734 * for leak sanitizer. 735 */ 736 static struct test_suite **suites[] = { 737 generic_tests, 738 arch_tests, 739 NULL, 740 }; 741 struct test_suite **result; 742 struct test_suite *t; 743 size_t n = 0, num_suites = 0; 744 745 if (suites[2] == NULL) 746 suites[2] = create_script_test_suites(); 747 748 #define for_each_suite(suite) \ 749 for (size_t i = 0, j = 0; i < ARRAY_SIZE(suites); i++, j = 0) \ 750 while ((suite = suites[i][j++]) != NULL) 751 752 for_each_suite(t) 753 num_suites++; 754 755 result = calloc(num_suites + 1, sizeof(struct test_suite *)); 756 757 for (int pass = 1; pass <= 2; pass++) { 758 for_each_suite(t) { 759 bool exclusive = false; 760 int curr_test_case; 761 762 test_suite__for_each_test_case(t, curr_test_case) { 763 if (test_exclusive(t, curr_test_case)) { 764 exclusive = true; 765 break; 766 } 767 } 768 if ((!exclusive && pass == 1) || (exclusive && pass == 2)) 769 result[n++] = t; 770 } 771 } 772 return result; 773 #undef for_each_suite 774 } 775 776 int cmd_test(int argc, const char **argv) 777 { 778 const char *test_usage[] = { 779 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]", 780 NULL, 781 }; 782 const char *skip = NULL; 783 const char *workload = NULL; 784 bool list_workloads = false; 785 const struct option test_options[] = { 786 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), 787 OPT_INCR('v', "verbose", &verbose, 788 "be more verbose (show symbol address, etc)"), 789 OPT_BOOLEAN('F', "dont-fork", &dont_fork, 790 "Do not fork for testcase"), 791 OPT_BOOLEAN('S', "sequential", &sequential, 792 "Run the tests one after another rather than in parallel"), 793 OPT_UINTEGER('r', "runs-per-test", &runs_per_test, 794 "Run each test the given number of times, default 1"), 795 OPT_STRING('w', "workload", &workload, "work", "workload to run for testing, use '--list-workloads' to list the available ones."), 796 OPT_BOOLEAN(0, "list-workloads", &list_workloads, "List the available builtin workloads to use with -w/--workload"), 797 OPT_STRING(0, "dso", &dso_to_test, "dso", "dso to test"), 798 OPT_STRING(0, "objdump", &test_objdump_path, "path", 799 "objdump binary to use for disassembly and annotations"), 800 OPT_END() 801 }; 802 const char * const test_subcommands[] = { "list", NULL }; 803 struct intlist *skiplist = NULL; 804 int ret = hists__init(); 805 struct test_suite **suites; 806 807 if (ret < 0) 808 return ret; 809 810 perf_config(perf_test__config, NULL); 811 812 /* Unbuffered output */ 813 setvbuf(stdout, NULL, _IONBF, 0); 814 815 argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0); 816 if (argc >= 1 && !strcmp(argv[0], "list")) { 817 suites = build_suites(); 818 ret = perf_test__list(stdout, suites, argc - 1, argv + 1); 819 free(suites); 820 return ret; 821 } 822 823 if (workload) 824 return run_workload(workload, argc, argv); 825 826 if (list_workloads) { 827 workloads__fprintf_list(stdout); 828 return 0; 829 } 830 831 if (dont_fork) 832 sequential = true; 833 834 symbol_conf.priv_size = sizeof(int); 835 symbol_conf.try_vmlinux_path = true; 836 837 838 if (symbol__init(NULL) < 0) 839 return -1; 840 841 if (skip != NULL) 842 skiplist = intlist__new(skip); 843 /* 844 * Tests that create BPF maps, for instance, need more than the 64K 845 * default: 846 */ 847 rlimit__bump_memlock(); 848 849 suites = build_suites(); 850 ret = __cmd_test(suites, argc, argv, skiplist); 851 free(suites); 852 return ret; 853 } 854