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 &workload__inlineloop, 157 }; 158 159 #define workloads__for_each(workload) \ 160 for (unsigned i = 0; i < ARRAY_SIZE(workloads) && ({ workload = workloads[i]; 1; }); i++) 161 162 #define test_suite__for_each_test_case(suite, idx) \ 163 for (idx = 0; (suite)->test_cases && (suite)->test_cases[idx].name != NULL; idx++) 164 165 static void close_parent_fds(void) 166 { 167 DIR *dir = opendir("/proc/self/fd"); 168 struct dirent *ent; 169 170 while ((ent = readdir(dir))) { 171 char *end; 172 long fd; 173 174 if (ent->d_type != DT_LNK) 175 continue; 176 177 if (!isdigit(ent->d_name[0])) 178 continue; 179 180 fd = strtol(ent->d_name, &end, 10); 181 if (*end) 182 continue; 183 184 if (fd <= 3 || fd == dirfd(dir)) 185 continue; 186 187 close(fd); 188 } 189 closedir(dir); 190 } 191 192 static void check_leaks(void) 193 { 194 DIR *dir = opendir("/proc/self/fd"); 195 struct dirent *ent; 196 int leaks = 0; 197 198 while ((ent = readdir(dir))) { 199 char path[PATH_MAX]; 200 char *end; 201 long fd; 202 ssize_t len; 203 204 if (ent->d_type != DT_LNK) 205 continue; 206 207 if (!isdigit(ent->d_name[0])) 208 continue; 209 210 fd = strtol(ent->d_name, &end, 10); 211 if (*end) 212 continue; 213 214 if (fd <= 3 || fd == dirfd(dir)) 215 continue; 216 217 leaks++; 218 len = readlinkat(dirfd(dir), ent->d_name, path, sizeof(path)); 219 if (len > 0 && (size_t)len < sizeof(path)) 220 path[len] = '\0'; 221 else 222 strncpy(path, ent->d_name, sizeof(path)); 223 pr_err("Leak of file descriptor %s that opened: '%s'\n", ent->d_name, path); 224 } 225 closedir(dir); 226 if (leaks) 227 abort(); 228 } 229 230 static int test_suite__num_test_cases(const struct test_suite *t) 231 { 232 int num; 233 234 test_suite__for_each_test_case(t, num); 235 236 return num; 237 } 238 239 static const char *skip_reason(const struct test_suite *t, int test_case) 240 { 241 if (!t->test_cases) 242 return NULL; 243 244 return t->test_cases[test_case >= 0 ? test_case : 0].skip_reason; 245 } 246 247 static const char *test_description(const struct test_suite *t, int test_case) 248 { 249 if (t->test_cases && test_case >= 0) 250 return t->test_cases[test_case].desc; 251 252 return t->desc; 253 } 254 255 static test_fnptr test_function(const struct test_suite *t, int test_case) 256 { 257 if (test_case <= 0) 258 return t->test_cases[0].run_case; 259 260 return t->test_cases[test_case].run_case; 261 } 262 263 static bool test_exclusive(const struct test_suite *t, int test_case) 264 { 265 if (test_case <= 0) 266 return t->test_cases[0].exclusive; 267 268 return t->test_cases[test_case].exclusive; 269 } 270 271 static bool perf_test__matches(const char *desc, int suite_num, int argc, const char *argv[]) 272 { 273 int i; 274 275 if (argc == 0) 276 return true; 277 278 for (i = 0; i < argc; ++i) { 279 char *end; 280 long nr = strtoul(argv[i], &end, 10); 281 282 if (*end == '\0') { 283 if (nr == suite_num + 1) 284 return true; 285 continue; 286 } 287 288 if (strcasestr(desc, argv[i])) 289 return true; 290 } 291 292 return false; 293 } 294 295 struct child_test { 296 struct child_process process; 297 struct test_suite *test; 298 int suite_num; 299 int test_case_num; 300 }; 301 302 static jmp_buf run_test_jmp_buf; 303 304 static void child_test_sig_handler(int sig) 305 { 306 #ifdef HAVE_BACKTRACE_SUPPORT 307 void *stackdump[32]; 308 size_t stackdump_size; 309 #endif 310 311 fprintf(stderr, "\n---- unexpected signal (%d) ----\n", sig); 312 #ifdef HAVE_BACKTRACE_SUPPORT 313 stackdump_size = backtrace(stackdump, ARRAY_SIZE(stackdump)); 314 __dump_stack(stderr, stackdump, stackdump_size); 315 #endif 316 siglongjmp(run_test_jmp_buf, sig); 317 } 318 319 static int run_test_child(struct child_process *process) 320 { 321 const int signals[] = { 322 SIGABRT, SIGBUS, SIGFPE, SIGILL, SIGINT, SIGPIPE, SIGQUIT, SIGSEGV, SIGTERM, 323 }; 324 struct child_test *child = container_of(process, struct child_test, process); 325 int err; 326 327 close_parent_fds(); 328 329 err = sigsetjmp(run_test_jmp_buf, 1); 330 if (err) { 331 /* Received signal. */ 332 err = err > 0 ? -err : -1; 333 goto err_out; 334 } 335 336 for (size_t i = 0; i < ARRAY_SIZE(signals); i++) 337 signal(signals[i], child_test_sig_handler); 338 339 pr_debug("--- start ---\n"); 340 pr_debug("test child forked, pid %d\n", getpid()); 341 err = test_function(child->test, child->test_case_num)(child->test, child->test_case_num); 342 pr_debug("---- end(%d) ----\n", err); 343 344 check_leaks(); 345 err_out: 346 fflush(NULL); 347 for (size_t i = 0; i < ARRAY_SIZE(signals); i++) 348 signal(signals[i], SIG_DFL); 349 return -err; 350 } 351 352 #define TEST_RUNNING -3 353 354 static int print_test_result(struct test_suite *t, int curr_suite, int curr_test_case, 355 int result, int width, int running) 356 { 357 if (test_suite__num_test_cases(t) > 1) { 358 int subw = width > 2 ? width - 2 : width; 359 360 pr_info("%3d.%1d: %-*s:", curr_suite + 1, curr_test_case + 1, subw, 361 test_description(t, curr_test_case)); 362 } else 363 pr_info("%3d: %-*s:", curr_suite + 1, width, test_description(t, curr_test_case)); 364 365 switch (result) { 366 case TEST_RUNNING: 367 color_fprintf(stderr, PERF_COLOR_YELLOW, " Running (%d active)\n", running); 368 break; 369 case TEST_OK: 370 pr_info(" Ok\n"); 371 break; 372 case TEST_SKIP: { 373 const char *reason = skip_reason(t, curr_test_case); 374 375 if (reason) 376 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", reason); 377 else 378 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n"); 379 } 380 break; 381 case TEST_FAIL: 382 default: 383 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n"); 384 break; 385 } 386 387 return 0; 388 } 389 390 static void finish_test(struct child_test **child_tests, int running_test, int child_test_num, 391 int width) 392 { 393 struct child_test *child_test = child_tests[running_test]; 394 struct test_suite *t; 395 int curr_suite, curr_test_case, err; 396 bool err_done = false; 397 struct strbuf err_output = STRBUF_INIT; 398 int last_running = -1; 399 int ret; 400 401 if (child_test == NULL) { 402 /* Test wasn't started. */ 403 return; 404 } 405 t = child_test->test; 406 curr_suite = child_test->suite_num; 407 curr_test_case = child_test->test_case_num; 408 err = child_test->process.err; 409 /* 410 * For test suites with subtests, display the suite name ahead of the 411 * sub test names. 412 */ 413 if (test_suite__num_test_cases(t) > 1 && curr_test_case == 0) 414 pr_info("%3d: %-*s:\n", curr_suite + 1, width, test_description(t, -1)); 415 416 /* 417 * Busy loop reading from the child's stdout/stderr that are set to be 418 * non-blocking until EOF. 419 */ 420 if (err > 0) 421 fcntl(err, F_SETFL, O_NONBLOCK); 422 if (verbose > 1) { 423 if (test_suite__num_test_cases(t) > 1) 424 pr_info("%3d.%1d: %s:\n", curr_suite + 1, curr_test_case + 1, 425 test_description(t, curr_test_case)); 426 else 427 pr_info("%3d: %s:\n", curr_suite + 1, test_description(t, -1)); 428 } 429 while (!err_done) { 430 struct pollfd pfds[1] = { 431 { .fd = err, 432 .events = POLLIN | POLLERR | POLLHUP | POLLNVAL, 433 }, 434 }; 435 if (perf_use_color_default) { 436 int running = 0; 437 438 for (int y = running_test; y < child_test_num; y++) { 439 if (child_tests[y] == NULL) 440 continue; 441 if (check_if_command_finished(&child_tests[y]->process) == 0) 442 running++; 443 } 444 if (running != last_running) { 445 if (last_running != -1) { 446 /* 447 * Erase "Running (.. active)" line 448 * printed before poll/sleep. 449 */ 450 fprintf(debug_file(), PERF_COLOR_DELETE_LINE); 451 } 452 print_test_result(t, curr_suite, curr_test_case, TEST_RUNNING, 453 width, running); 454 last_running = running; 455 } 456 } 457 458 err_done = true; 459 if (err <= 0) { 460 /* No child stderr to poll, sleep for 10ms for child to complete. */ 461 usleep(10 * 1000); 462 } else { 463 /* Poll to avoid excessive spinning, timeout set for 100ms. */ 464 poll(pfds, ARRAY_SIZE(pfds), /*timeout=*/100); 465 if (pfds[0].revents) { 466 char buf[512]; 467 ssize_t len; 468 469 len = read(err, buf, sizeof(buf) - 1); 470 471 if (len > 0) { 472 err_done = false; 473 buf[len] = '\0'; 474 strbuf_addstr(&err_output, buf); 475 } 476 } 477 } 478 if (err_done) 479 err_done = check_if_command_finished(&child_test->process); 480 } 481 if (perf_use_color_default && last_running != -1) { 482 /* Erase "Running (.. active)" line printed before poll/sleep. */ 483 fprintf(debug_file(), PERF_COLOR_DELETE_LINE); 484 } 485 /* Clean up child process. */ 486 ret = finish_command(&child_test->process); 487 if (verbose > 1 || (verbose == 1 && ret == TEST_FAIL)) 488 fprintf(stderr, "%s", err_output.buf); 489 490 strbuf_release(&err_output); 491 print_test_result(t, curr_suite, curr_test_case, ret, width, /*running=*/0); 492 if (err > 0) 493 close(err); 494 zfree(&child_tests[running_test]); 495 } 496 497 static int start_test(struct test_suite *test, int curr_suite, int curr_test_case, 498 struct child_test **child, int width, int pass) 499 { 500 int err; 501 502 *child = NULL; 503 if (dont_fork) { 504 if (pass == 1) { 505 pr_debug("--- start ---\n"); 506 err = test_function(test, curr_test_case)(test, curr_test_case); 507 pr_debug("---- end ----\n"); 508 print_test_result(test, curr_suite, curr_test_case, err, width, 509 /*running=*/0); 510 } 511 return 0; 512 } 513 if (pass == 1 && !sequential && test_exclusive(test, curr_test_case)) { 514 /* When parallel, skip exclusive tests on the first pass. */ 515 return 0; 516 } 517 if (pass != 1 && (sequential || !test_exclusive(test, curr_test_case))) { 518 /* Sequential and non-exclusive tests were run on the first pass. */ 519 return 0; 520 } 521 *child = zalloc(sizeof(**child)); 522 if (!*child) 523 return -ENOMEM; 524 525 (*child)->test = test; 526 (*child)->suite_num = curr_suite; 527 (*child)->test_case_num = curr_test_case; 528 (*child)->process.pid = -1; 529 (*child)->process.no_stdin = 1; 530 if (verbose <= 0) { 531 (*child)->process.no_stdout = 1; 532 (*child)->process.no_stderr = 1; 533 } else { 534 (*child)->process.stdout_to_stderr = 1; 535 (*child)->process.out = -1; 536 (*child)->process.err = -1; 537 } 538 (*child)->process.no_exec_cmd = run_test_child; 539 if (sequential || pass == 2) { 540 err = start_command(&(*child)->process); 541 if (err) 542 return err; 543 finish_test(child, /*running_test=*/0, /*child_test_num=*/1, width); 544 return 0; 545 } 546 return start_command(&(*child)->process); 547 } 548 549 /* State outside of __cmd_test for the sake of the signal handler. */ 550 551 static size_t num_tests; 552 static struct child_test **child_tests; 553 static jmp_buf cmd_test_jmp_buf; 554 555 static void cmd_test_sig_handler(int sig) 556 { 557 siglongjmp(cmd_test_jmp_buf, sig); 558 } 559 560 static int __cmd_test(struct test_suite **suites, int argc, const char *argv[], 561 struct intlist *skiplist) 562 { 563 static int width = 0; 564 int err = 0; 565 566 for (struct test_suite **t = suites; *t; t++) { 567 int i, len = strlen(test_description(*t, -1)); 568 569 if (width < len) 570 width = len; 571 572 test_suite__for_each_test_case(*t, i) { 573 len = strlen(test_description(*t, i)); 574 if (width < len) 575 width = len; 576 num_tests += runs_per_test; 577 } 578 } 579 child_tests = calloc(num_tests, sizeof(*child_tests)); 580 if (!child_tests) 581 return -ENOMEM; 582 583 err = sigsetjmp(cmd_test_jmp_buf, 1); 584 if (err) { 585 pr_err("\nSignal (%d) while running tests.\nTerminating tests with the same signal\n", 586 err); 587 for (size_t x = 0; x < num_tests; x++) { 588 struct child_test *child_test = child_tests[x]; 589 590 if (!child_test || child_test->process.pid <= 0) 591 continue; 592 593 pr_debug3("Killing %d pid %d\n", 594 child_test->suite_num + 1, 595 child_test->process.pid); 596 kill(child_test->process.pid, err); 597 } 598 goto err_out; 599 } 600 signal(SIGINT, cmd_test_sig_handler); 601 signal(SIGTERM, cmd_test_sig_handler); 602 603 /* 604 * In parallel mode pass 1 runs non-exclusive tests in parallel, pass 2 605 * runs the exclusive tests sequentially. In other modes all tests are 606 * run in pass 1. 607 */ 608 for (int pass = 1; pass <= 2; pass++) { 609 int child_test_num = 0; 610 int curr_suite = 0; 611 612 for (struct test_suite **t = suites; *t; t++, curr_suite++) { 613 int curr_test_case; 614 bool suite_matched = false; 615 616 if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) { 617 /* 618 * Test suite shouldn't be run based on 619 * description. See if any test case should. 620 */ 621 bool skip = true; 622 623 test_suite__for_each_test_case(*t, curr_test_case) { 624 if (perf_test__matches(test_description(*t, curr_test_case), 625 curr_suite, argc, argv)) { 626 skip = false; 627 break; 628 } 629 } 630 if (skip) 631 continue; 632 } else { 633 suite_matched = true; 634 } 635 636 if (intlist__find(skiplist, curr_suite + 1)) { 637 pr_info("%3d: %-*s:", curr_suite + 1, width, 638 test_description(*t, -1)); 639 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); 640 continue; 641 } 642 643 for (unsigned int run = 0; run < runs_per_test; run++) { 644 test_suite__for_each_test_case(*t, curr_test_case) { 645 if (!suite_matched && 646 !perf_test__matches(test_description(*t, curr_test_case), 647 curr_suite, argc, argv)) 648 continue; 649 err = start_test(*t, curr_suite, curr_test_case, 650 &child_tests[child_test_num++], 651 width, pass); 652 if (err) 653 goto err_out; 654 } 655 } 656 } 657 if (!sequential) { 658 /* Parallel mode starts tests but doesn't finish them. Do that now. */ 659 for (size_t x = 0; x < num_tests; x++) 660 finish_test(child_tests, x, num_tests, width); 661 } 662 } 663 err_out: 664 signal(SIGINT, SIG_DFL); 665 signal(SIGTERM, SIG_DFL); 666 if (err) { 667 pr_err("Internal test harness failure. Completing any started tests:\n:"); 668 for (size_t x = 0; x < num_tests; x++) 669 finish_test(child_tests, x, num_tests, width); 670 } 671 free(child_tests); 672 return err; 673 } 674 675 static int perf_test__list(FILE *fp, struct test_suite **suites, int argc, const char **argv) 676 { 677 int curr_suite = 0; 678 679 for (struct test_suite **t = suites; *t; t++, curr_suite++) { 680 int curr_test_case; 681 682 if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) 683 continue; 684 685 fprintf(fp, "%3d: %s\n", curr_suite + 1, test_description(*t, -1)); 686 687 if (test_suite__num_test_cases(*t) <= 1) 688 continue; 689 690 test_suite__for_each_test_case(*t, curr_test_case) { 691 fprintf(fp, "%3d.%1d: %s\n", curr_suite + 1, curr_test_case + 1, 692 test_description(*t, curr_test_case)); 693 } 694 } 695 return 0; 696 } 697 698 static int workloads__fprintf_list(FILE *fp) 699 { 700 struct test_workload *twl; 701 int printed = 0; 702 703 workloads__for_each(twl) 704 printed += fprintf(fp, "%s\n", twl->name); 705 706 return printed; 707 } 708 709 static int run_workload(const char *work, int argc, const char **argv) 710 { 711 struct test_workload *twl; 712 713 workloads__for_each(twl) { 714 if (!strcmp(twl->name, work)) 715 return twl->func(argc, argv); 716 } 717 718 pr_info("No workload found: %s\n", work); 719 return -1; 720 } 721 722 static int perf_test__config(const char *var, const char *value, 723 void *data __maybe_unused) 724 { 725 if (!strcmp(var, "annotate.objdump")) 726 test_objdump_path = value; 727 728 return 0; 729 } 730 731 static struct test_suite **build_suites(void) 732 { 733 /* 734 * TODO: suites is static to avoid needing to clean up the scripts tests 735 * for leak sanitizer. 736 */ 737 static struct test_suite **suites[] = { 738 generic_tests, 739 arch_tests, 740 NULL, 741 }; 742 struct test_suite **result; 743 struct test_suite *t; 744 size_t n = 0, num_suites = 0; 745 746 if (suites[2] == NULL) 747 suites[2] = create_script_test_suites(); 748 749 #define for_each_suite(suite) \ 750 for (size_t i = 0, j = 0; i < ARRAY_SIZE(suites); i++, j = 0) \ 751 while ((suite = suites[i][j++]) != NULL) 752 753 for_each_suite(t) 754 num_suites++; 755 756 result = calloc(num_suites + 1, sizeof(struct test_suite *)); 757 758 for (int pass = 1; pass <= 2; pass++) { 759 for_each_suite(t) { 760 bool exclusive = false; 761 int curr_test_case; 762 763 test_suite__for_each_test_case(t, curr_test_case) { 764 if (test_exclusive(t, curr_test_case)) { 765 exclusive = true; 766 break; 767 } 768 } 769 if ((!exclusive && pass == 1) || (exclusive && pass == 2)) 770 result[n++] = t; 771 } 772 } 773 return result; 774 #undef for_each_suite 775 } 776 777 int cmd_test(int argc, const char **argv) 778 { 779 const char *test_usage[] = { 780 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]", 781 NULL, 782 }; 783 const char *skip = NULL; 784 const char *workload = NULL; 785 bool list_workloads = false; 786 const struct option test_options[] = { 787 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), 788 OPT_INCR('v', "verbose", &verbose, 789 "be more verbose (show symbol address, etc)"), 790 OPT_BOOLEAN('F', "dont-fork", &dont_fork, 791 "Do not fork for testcase"), 792 OPT_BOOLEAN('S', "sequential", &sequential, 793 "Run the tests one after another rather than in parallel"), 794 OPT_UINTEGER('r', "runs-per-test", &runs_per_test, 795 "Run each test the given number of times, default 1"), 796 OPT_STRING('w', "workload", &workload, "work", "workload to run for testing, use '--list-workloads' to list the available ones."), 797 OPT_BOOLEAN(0, "list-workloads", &list_workloads, "List the available builtin workloads to use with -w/--workload"), 798 OPT_STRING(0, "dso", &dso_to_test, "dso", "dso to test"), 799 OPT_STRING(0, "objdump", &test_objdump_path, "path", 800 "objdump binary to use for disassembly and annotations"), 801 OPT_END() 802 }; 803 const char * const test_subcommands[] = { "list", NULL }; 804 struct intlist *skiplist = NULL; 805 int ret = hists__init(); 806 struct test_suite **suites; 807 808 if (ret < 0) 809 return ret; 810 811 perf_config(perf_test__config, NULL); 812 813 /* Unbuffered output */ 814 setvbuf(stdout, NULL, _IONBF, 0); 815 816 argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0); 817 if (argc >= 1 && !strcmp(argv[0], "list")) { 818 suites = build_suites(); 819 ret = perf_test__list(stdout, suites, argc - 1, argv + 1); 820 free(suites); 821 return ret; 822 } 823 824 if (workload) 825 return run_workload(workload, argc, argv); 826 827 if (list_workloads) { 828 workloads__fprintf_list(stdout); 829 return 0; 830 } 831 832 if (dont_fork) 833 sequential = true; 834 835 symbol_conf.priv_size = sizeof(int); 836 symbol_conf.try_vmlinux_path = true; 837 838 839 if (symbol__init(NULL) < 0) 840 return -1; 841 842 if (skip != NULL) 843 skiplist = intlist__new(skip); 844 /* 845 * Tests that create BPF maps, for instance, need more than the 64K 846 * default: 847 */ 848 rlimit__bump_memlock(); 849 850 suites = build_suites(); 851 ret = __cmd_test(suites, argc, argv, skiplist); 852 free(suites); 853 return ret; 854 } 855