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__uncore_event_sorting, 75 &suite__expr, 76 &suite__PERF_RECORD, 77 &suite__pmu, 78 &suite__pmu_events, 79 &suite__hwmon_pmu, 80 &suite__tool_pmu, 81 &suite__dso_data, 82 &suite__perf_evsel__roundtrip_name_test, 83 #ifdef HAVE_LIBTRACEEVENT 84 &suite__perf_evsel__tp_sched_test, 85 &suite__syscall_openat_tp_fields, 86 #endif 87 &suite__hists_link, 88 &suite__bp_signal, 89 &suite__bp_signal_overflow, 90 &suite__bp_accounting, 91 &suite__wp, 92 &suite__task_exit, 93 &suite__sw_clock_freq, 94 &suite__code_reading, 95 &suite__sample_parsing, 96 &suite__keep_tracking, 97 &suite__parse_no_sample_id_all, 98 &suite__hists_filter, 99 &suite__mmap_thread_lookup, 100 &suite__thread_maps_share, 101 &suite__hists_output, 102 &suite__hists_cumulate, 103 #ifdef HAVE_LIBTRACEEVENT 104 &suite__switch_tracking, 105 #endif 106 &suite__fdarray__filter, 107 &suite__fdarray__add, 108 &suite__kmod_path__parse, 109 &suite__thread_map, 110 &suite__session_topology, 111 &suite__thread_map_synthesize, 112 &suite__thread_map_remove, 113 &suite__cpu_map, 114 &suite__synthesize_stat_config, 115 &suite__synthesize_stat, 116 &suite__synthesize_stat_round, 117 &suite__event_update, 118 &suite__event_times, 119 &suite__backward_ring_buffer, 120 &suite__sdt_event, 121 &suite__is_printable_array, 122 &suite__bitmap_print, 123 &suite__perf_hooks, 124 &suite__unit_number__scnprint, 125 &suite__mem2node, 126 &suite__time_utils, 127 &suite__jit_write_elf, 128 &suite__pfm, 129 &suite__api_io, 130 &suite__maps, 131 &suite__demangle_java, 132 &suite__demangle_ocaml, 133 &suite__demangle_rust, 134 &suite__parse_metric, 135 &suite__pe_file_parsing, 136 &suite__expand_cgroup_events, 137 &suite__perf_time_to_tsc, 138 &suite__dlfilter, 139 &suite__sigtrap, 140 &suite__event_groups, 141 &suite__symbols, 142 &suite__util, 143 &suite__subcmd_help, 144 &suite__kallsyms_split, 145 NULL, 146 }; 147 148 static struct test_workload *workloads[] = { 149 &workload__noploop, 150 &workload__thloop, 151 &workload__leafloop, 152 &workload__sqrtloop, 153 &workload__brstack, 154 &workload__datasym, 155 &workload__landlock, 156 &workload__traploop, 157 &workload__inlineloop, 158 159 #ifdef HAVE_RUST_SUPPORT 160 &workload__code_with_type, 161 #endif 162 }; 163 164 #define workloads__for_each(workload) \ 165 for (unsigned i = 0; i < ARRAY_SIZE(workloads) && ({ workload = workloads[i]; 1; }); i++) 166 167 #define test_suite__for_each_test_case(suite, idx) \ 168 for (idx = 0; (suite)->test_cases && (suite)->test_cases[idx].name != NULL; idx++) 169 170 static void close_parent_fds(void) 171 { 172 DIR *dir = opendir("/proc/self/fd"); 173 struct dirent *ent; 174 175 while ((ent = readdir(dir))) { 176 char *end; 177 long fd; 178 179 if (ent->d_type != DT_LNK) 180 continue; 181 182 if (!isdigit(ent->d_name[0])) 183 continue; 184 185 fd = strtol(ent->d_name, &end, 10); 186 if (*end) 187 continue; 188 189 if (fd <= 3 || fd == dirfd(dir)) 190 continue; 191 192 close(fd); 193 } 194 closedir(dir); 195 } 196 197 static void check_leaks(void) 198 { 199 DIR *dir = opendir("/proc/self/fd"); 200 struct dirent *ent; 201 int leaks = 0; 202 203 while ((ent = readdir(dir))) { 204 char path[PATH_MAX]; 205 char *end; 206 long fd; 207 ssize_t len; 208 209 if (ent->d_type != DT_LNK) 210 continue; 211 212 if (!isdigit(ent->d_name[0])) 213 continue; 214 215 fd = strtol(ent->d_name, &end, 10); 216 if (*end) 217 continue; 218 219 if (fd <= 3 || fd == dirfd(dir)) 220 continue; 221 222 leaks++; 223 len = readlinkat(dirfd(dir), ent->d_name, path, sizeof(path)); 224 if (len > 0 && (size_t)len < sizeof(path)) 225 path[len] = '\0'; 226 else 227 strncpy(path, ent->d_name, sizeof(path)); 228 pr_err("Leak of file descriptor %s that opened: '%s'\n", ent->d_name, path); 229 } 230 closedir(dir); 231 if (leaks) 232 abort(); 233 } 234 235 static int test_suite__num_test_cases(const struct test_suite *t) 236 { 237 int num; 238 239 test_suite__for_each_test_case(t, num); 240 241 return num; 242 } 243 244 static const char *skip_reason(const struct test_suite *t, int test_case) 245 { 246 if (!t->test_cases) 247 return NULL; 248 249 return t->test_cases[test_case >= 0 ? test_case : 0].skip_reason; 250 } 251 252 static const char *test_description(const struct test_suite *t, int test_case) 253 { 254 if (t->test_cases && test_case >= 0) 255 return t->test_cases[test_case].desc; 256 257 return t->desc; 258 } 259 260 static test_fnptr test_function(const struct test_suite *t, int test_case) 261 { 262 if (test_case <= 0) 263 return t->test_cases[0].run_case; 264 265 return t->test_cases[test_case].run_case; 266 } 267 268 static bool test_exclusive(const struct test_suite *t, int test_case) 269 { 270 if (test_case <= 0) 271 return t->test_cases[0].exclusive; 272 273 return t->test_cases[test_case].exclusive; 274 } 275 276 static bool perf_test__matches(const char *desc, int suite_num, int argc, const char *argv[]) 277 { 278 int i; 279 280 if (argc == 0) 281 return true; 282 283 for (i = 0; i < argc; ++i) { 284 char *end; 285 long nr = strtoul(argv[i], &end, 10); 286 287 if (*end == '\0') { 288 if (nr == suite_num + 1) 289 return true; 290 continue; 291 } 292 293 if (strcasestr(desc, argv[i])) 294 return true; 295 } 296 297 return false; 298 } 299 300 struct child_test { 301 struct child_process process; 302 struct test_suite *test; 303 int suite_num; 304 int test_case_num; 305 }; 306 307 static jmp_buf run_test_jmp_buf; 308 309 static void child_test_sig_handler(int sig) 310 { 311 #ifdef HAVE_BACKTRACE_SUPPORT 312 void *stackdump[32]; 313 size_t stackdump_size; 314 #endif 315 316 fprintf(stderr, "\n---- unexpected signal (%d) ----\n", sig); 317 #ifdef HAVE_BACKTRACE_SUPPORT 318 stackdump_size = backtrace(stackdump, ARRAY_SIZE(stackdump)); 319 __dump_stack(stderr, stackdump, stackdump_size); 320 #endif 321 siglongjmp(run_test_jmp_buf, sig); 322 } 323 324 static int run_test_child(struct child_process *process) 325 { 326 const int signals[] = { 327 SIGABRT, SIGBUS, SIGFPE, SIGILL, SIGINT, SIGPIPE, SIGQUIT, SIGSEGV, SIGTERM, 328 }; 329 struct child_test *child = container_of(process, struct child_test, process); 330 int err; 331 332 close_parent_fds(); 333 334 err = sigsetjmp(run_test_jmp_buf, 1); 335 if (err) { 336 /* Received signal. */ 337 err = err > 0 ? -err : -1; 338 goto err_out; 339 } 340 341 for (size_t i = 0; i < ARRAY_SIZE(signals); i++) 342 signal(signals[i], child_test_sig_handler); 343 344 pr_debug("--- start ---\n"); 345 pr_debug("test child forked, pid %d\n", getpid()); 346 err = test_function(child->test, child->test_case_num)(child->test, child->test_case_num); 347 pr_debug("---- end(%d) ----\n", err); 348 349 check_leaks(); 350 err_out: 351 fflush(NULL); 352 for (size_t i = 0; i < ARRAY_SIZE(signals); i++) 353 signal(signals[i], SIG_DFL); 354 return -err; 355 } 356 357 #define TEST_RUNNING -3 358 359 static int print_test_result(struct test_suite *t, int curr_suite, int curr_test_case, 360 int result, int width, int running) 361 { 362 if (test_suite__num_test_cases(t) > 1) { 363 int subw = width > 2 ? width - 2 : width; 364 365 pr_info("%3d.%1d: %-*s:", curr_suite + 1, curr_test_case + 1, subw, 366 test_description(t, curr_test_case)); 367 } else 368 pr_info("%3d: %-*s:", curr_suite + 1, width, test_description(t, curr_test_case)); 369 370 switch (result) { 371 case TEST_RUNNING: 372 color_fprintf(stderr, PERF_COLOR_YELLOW, " Running (%d active)\n", running); 373 break; 374 case TEST_OK: 375 pr_info(" Ok\n"); 376 break; 377 case TEST_SKIP: { 378 const char *reason = skip_reason(t, curr_test_case); 379 380 if (reason) 381 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", reason); 382 else 383 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n"); 384 } 385 break; 386 case TEST_FAIL: 387 default: 388 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n"); 389 break; 390 } 391 392 return 0; 393 } 394 395 static void finish_test(struct child_test **child_tests, int running_test, int child_test_num, 396 int width) 397 { 398 struct child_test *child_test = child_tests[running_test]; 399 struct test_suite *t; 400 int curr_suite, curr_test_case, err; 401 bool err_done = false; 402 struct strbuf err_output = STRBUF_INIT; 403 int last_running = -1; 404 int ret; 405 406 if (child_test == NULL) { 407 /* Test wasn't started. */ 408 return; 409 } 410 t = child_test->test; 411 curr_suite = child_test->suite_num; 412 curr_test_case = child_test->test_case_num; 413 err = child_test->process.err; 414 /* 415 * For test suites with subtests, display the suite name ahead of the 416 * sub test names. 417 */ 418 if (test_suite__num_test_cases(t) > 1 && curr_test_case == 0) 419 pr_info("%3d: %-*s:\n", curr_suite + 1, width, test_description(t, -1)); 420 421 /* 422 * Busy loop reading from the child's stdout/stderr that are set to be 423 * non-blocking until EOF. 424 */ 425 if (err > 0) 426 fcntl(err, F_SETFL, O_NONBLOCK); 427 if (verbose > 1) { 428 if (test_suite__num_test_cases(t) > 1) 429 pr_info("%3d.%1d: %s:\n", curr_suite + 1, curr_test_case + 1, 430 test_description(t, curr_test_case)); 431 else 432 pr_info("%3d: %s:\n", curr_suite + 1, test_description(t, -1)); 433 } 434 while (!err_done) { 435 struct pollfd pfds[1] = { 436 { .fd = err, 437 .events = POLLIN | POLLERR | POLLHUP | POLLNVAL, 438 }, 439 }; 440 if (perf_use_color_default) { 441 int running = 0; 442 443 for (int y = running_test; y < child_test_num; y++) { 444 if (child_tests[y] == NULL) 445 continue; 446 if (check_if_command_finished(&child_tests[y]->process) == 0) 447 running++; 448 } 449 if (running != last_running) { 450 if (last_running != -1) { 451 /* 452 * Erase "Running (.. active)" line 453 * printed before poll/sleep. 454 */ 455 fprintf(debug_file(), PERF_COLOR_DELETE_LINE); 456 } 457 print_test_result(t, curr_suite, curr_test_case, TEST_RUNNING, 458 width, running); 459 last_running = running; 460 } 461 } 462 463 err_done = true; 464 if (err <= 0) { 465 /* No child stderr to poll, sleep for 10ms for child to complete. */ 466 usleep(10 * 1000); 467 } else { 468 /* Poll to avoid excessive spinning, timeout set for 100ms. */ 469 poll(pfds, ARRAY_SIZE(pfds), /*timeout=*/100); 470 if (pfds[0].revents) { 471 char buf[512]; 472 ssize_t len; 473 474 len = read(err, buf, sizeof(buf) - 1); 475 476 if (len > 0) { 477 err_done = false; 478 buf[len] = '\0'; 479 strbuf_addstr(&err_output, buf); 480 } 481 } 482 } 483 if (err_done) 484 err_done = check_if_command_finished(&child_test->process); 485 } 486 if (perf_use_color_default && last_running != -1) { 487 /* Erase "Running (.. active)" line printed before poll/sleep. */ 488 fprintf(debug_file(), PERF_COLOR_DELETE_LINE); 489 } 490 /* Clean up child process. */ 491 ret = finish_command(&child_test->process); 492 if (verbose > 1 || (verbose == 1 && ret == TEST_FAIL)) 493 fprintf(stderr, "%s", err_output.buf); 494 495 strbuf_release(&err_output); 496 print_test_result(t, curr_suite, curr_test_case, ret, width, /*running=*/0); 497 if (err > 0) 498 close(err); 499 zfree(&child_tests[running_test]); 500 } 501 502 static int start_test(struct test_suite *test, int curr_suite, int curr_test_case, 503 struct child_test **child, int width, int pass) 504 { 505 int err; 506 507 *child = NULL; 508 if (dont_fork) { 509 if (pass == 1) { 510 pr_debug("--- start ---\n"); 511 err = test_function(test, curr_test_case)(test, curr_test_case); 512 pr_debug("---- end ----\n"); 513 print_test_result(test, curr_suite, curr_test_case, err, width, 514 /*running=*/0); 515 } 516 return 0; 517 } 518 if (pass == 1 && !sequential && test_exclusive(test, curr_test_case)) { 519 /* When parallel, skip exclusive tests on the first pass. */ 520 return 0; 521 } 522 if (pass != 1 && (sequential || !test_exclusive(test, curr_test_case))) { 523 /* Sequential and non-exclusive tests were run on the first pass. */ 524 return 0; 525 } 526 *child = zalloc(sizeof(**child)); 527 if (!*child) 528 return -ENOMEM; 529 530 (*child)->test = test; 531 (*child)->suite_num = curr_suite; 532 (*child)->test_case_num = curr_test_case; 533 (*child)->process.pid = -1; 534 (*child)->process.no_stdin = 1; 535 if (verbose <= 0) { 536 (*child)->process.no_stdout = 1; 537 (*child)->process.no_stderr = 1; 538 } else { 539 (*child)->process.stdout_to_stderr = 1; 540 (*child)->process.out = -1; 541 (*child)->process.err = -1; 542 } 543 (*child)->process.no_exec_cmd = run_test_child; 544 if (sequential || pass == 2) { 545 err = start_command(&(*child)->process); 546 if (err) 547 return err; 548 finish_test(child, /*running_test=*/0, /*child_test_num=*/1, width); 549 return 0; 550 } 551 return start_command(&(*child)->process); 552 } 553 554 /* State outside of __cmd_test for the sake of the signal handler. */ 555 556 static size_t num_tests; 557 static struct child_test **child_tests; 558 static jmp_buf cmd_test_jmp_buf; 559 560 static void cmd_test_sig_handler(int sig) 561 { 562 siglongjmp(cmd_test_jmp_buf, sig); 563 } 564 565 static int __cmd_test(struct test_suite **suites, int argc, const char *argv[], 566 struct intlist *skiplist) 567 { 568 static int width = 0; 569 int err = 0; 570 571 for (struct test_suite **t = suites; *t; t++) { 572 int i, len = strlen(test_description(*t, -1)); 573 574 if (width < len) 575 width = len; 576 577 test_suite__for_each_test_case(*t, i) { 578 len = strlen(test_description(*t, i)); 579 if (width < len) 580 width = len; 581 num_tests += runs_per_test; 582 } 583 } 584 child_tests = calloc(num_tests, sizeof(*child_tests)); 585 if (!child_tests) 586 return -ENOMEM; 587 588 err = sigsetjmp(cmd_test_jmp_buf, 1); 589 if (err) { 590 pr_err("\nSignal (%d) while running tests.\nTerminating tests with the same signal\n", 591 err); 592 for (size_t x = 0; x < num_tests; x++) { 593 struct child_test *child_test = child_tests[x]; 594 595 if (!child_test || child_test->process.pid <= 0) 596 continue; 597 598 pr_debug3("Killing %d pid %d\n", 599 child_test->suite_num + 1, 600 child_test->process.pid); 601 kill(child_test->process.pid, err); 602 } 603 goto err_out; 604 } 605 signal(SIGINT, cmd_test_sig_handler); 606 signal(SIGTERM, cmd_test_sig_handler); 607 608 /* 609 * In parallel mode pass 1 runs non-exclusive tests in parallel, pass 2 610 * runs the exclusive tests sequentially. In other modes all tests are 611 * run in pass 1. 612 */ 613 for (int pass = 1; pass <= 2; pass++) { 614 int child_test_num = 0; 615 int curr_suite = 0; 616 617 for (struct test_suite **t = suites; *t; t++, curr_suite++) { 618 int curr_test_case; 619 bool suite_matched = false; 620 621 if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) { 622 /* 623 * Test suite shouldn't be run based on 624 * description. See if any test case should. 625 */ 626 bool skip = true; 627 628 test_suite__for_each_test_case(*t, curr_test_case) { 629 if (perf_test__matches(test_description(*t, curr_test_case), 630 curr_suite, argc, argv)) { 631 skip = false; 632 break; 633 } 634 } 635 if (skip) 636 continue; 637 } else { 638 suite_matched = true; 639 } 640 641 if (intlist__find(skiplist, curr_suite + 1)) { 642 pr_info("%3d: %-*s:", curr_suite + 1, width, 643 test_description(*t, -1)); 644 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); 645 continue; 646 } 647 648 for (unsigned int run = 0; run < runs_per_test; run++) { 649 test_suite__for_each_test_case(*t, curr_test_case) { 650 if (!suite_matched && 651 !perf_test__matches(test_description(*t, curr_test_case), 652 curr_suite, argc, argv)) 653 continue; 654 err = start_test(*t, curr_suite, curr_test_case, 655 &child_tests[child_test_num++], 656 width, pass); 657 if (err) 658 goto err_out; 659 } 660 } 661 } 662 if (!sequential) { 663 /* Parallel mode starts tests but doesn't finish them. Do that now. */ 664 for (size_t x = 0; x < num_tests; x++) 665 finish_test(child_tests, x, num_tests, width); 666 } 667 } 668 err_out: 669 signal(SIGINT, SIG_DFL); 670 signal(SIGTERM, SIG_DFL); 671 if (err) { 672 pr_err("Internal test harness failure. Completing any started tests:\n:"); 673 for (size_t x = 0; x < num_tests; x++) 674 finish_test(child_tests, x, num_tests, width); 675 } 676 free(child_tests); 677 return err; 678 } 679 680 static int perf_test__list(FILE *fp, struct test_suite **suites, int argc, const char **argv) 681 { 682 int curr_suite = 0; 683 684 for (struct test_suite **t = suites; *t; t++, curr_suite++) { 685 int curr_test_case; 686 687 if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) 688 continue; 689 690 fprintf(fp, "%3d: %s\n", curr_suite + 1, test_description(*t, -1)); 691 692 if (test_suite__num_test_cases(*t) <= 1) 693 continue; 694 695 test_suite__for_each_test_case(*t, curr_test_case) { 696 fprintf(fp, "%3d.%1d: %s\n", curr_suite + 1, curr_test_case + 1, 697 test_description(*t, curr_test_case)); 698 } 699 } 700 return 0; 701 } 702 703 static int workloads__fprintf_list(FILE *fp) 704 { 705 struct test_workload *twl; 706 int printed = 0; 707 708 workloads__for_each(twl) 709 printed += fprintf(fp, "%s\n", twl->name); 710 711 return printed; 712 } 713 714 static int run_workload(const char *work, int argc, const char **argv) 715 { 716 struct test_workload *twl; 717 718 workloads__for_each(twl) { 719 if (!strcmp(twl->name, work)) 720 return twl->func(argc, argv); 721 } 722 723 pr_info("No workload found: %s\n", work); 724 return -1; 725 } 726 727 static int perf_test__config(const char *var, const char *value, 728 void *data __maybe_unused) 729 { 730 if (!strcmp(var, "annotate.objdump")) 731 test_objdump_path = value; 732 733 return 0; 734 } 735 736 static struct test_suite **build_suites(void) 737 { 738 /* 739 * TODO: suites is static to avoid needing to clean up the scripts tests 740 * for leak sanitizer. 741 */ 742 static struct test_suite **suites[] = { 743 generic_tests, 744 arch_tests, 745 NULL, 746 }; 747 struct test_suite **result; 748 struct test_suite *t; 749 size_t n = 0, num_suites = 0; 750 751 if (suites[2] == NULL) 752 suites[2] = create_script_test_suites(); 753 754 #define for_each_suite(suite) \ 755 for (size_t i = 0, j = 0; i < ARRAY_SIZE(suites); i++, j = 0) \ 756 while ((suite = suites[i][j++]) != NULL) 757 758 for_each_suite(t) 759 num_suites++; 760 761 result = calloc(num_suites + 1, sizeof(struct test_suite *)); 762 763 for (int pass = 1; pass <= 2; pass++) { 764 for_each_suite(t) { 765 bool exclusive = false; 766 int curr_test_case; 767 768 test_suite__for_each_test_case(t, curr_test_case) { 769 if (test_exclusive(t, curr_test_case)) { 770 exclusive = true; 771 break; 772 } 773 } 774 if ((!exclusive && pass == 1) || (exclusive && pass == 2)) 775 result[n++] = t; 776 } 777 } 778 return result; 779 #undef for_each_suite 780 } 781 782 int cmd_test(int argc, const char **argv) 783 { 784 const char *test_usage[] = { 785 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]", 786 NULL, 787 }; 788 const char *skip = NULL; 789 const char *workload = NULL; 790 bool list_workloads = false; 791 const struct option test_options[] = { 792 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), 793 OPT_INCR('v', "verbose", &verbose, 794 "be more verbose (show symbol address, etc)"), 795 OPT_BOOLEAN('F', "dont-fork", &dont_fork, 796 "Do not fork for testcase"), 797 OPT_BOOLEAN('S', "sequential", &sequential, 798 "Run the tests one after another rather than in parallel"), 799 OPT_UINTEGER('r', "runs-per-test", &runs_per_test, 800 "Run each test the given number of times, default 1"), 801 OPT_STRING('w', "workload", &workload, "work", "workload to run for testing, use '--list-workloads' to list the available ones."), 802 OPT_BOOLEAN(0, "list-workloads", &list_workloads, "List the available builtin workloads to use with -w/--workload"), 803 OPT_STRING(0, "dso", &dso_to_test, "dso", "dso to test"), 804 OPT_STRING(0, "objdump", &test_objdump_path, "path", 805 "objdump binary to use for disassembly and annotations"), 806 OPT_END() 807 }; 808 const char * const test_subcommands[] = { "list", NULL }; 809 struct intlist *skiplist = NULL; 810 int ret = hists__init(); 811 struct test_suite **suites; 812 813 if (ret < 0) 814 return ret; 815 816 perf_config(perf_test__config, NULL); 817 818 /* Unbuffered output */ 819 setvbuf(stdout, NULL, _IONBF, 0); 820 821 argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0); 822 if (argc >= 1 && !strcmp(argv[0], "list")) { 823 suites = build_suites(); 824 ret = perf_test__list(stdout, suites, argc - 1, argv + 1); 825 free(suites); 826 return ret; 827 } 828 829 if (workload) 830 return run_workload(workload, argc, argv); 831 832 if (list_workloads) { 833 workloads__fprintf_list(stdout); 834 return 0; 835 } 836 837 if (dont_fork) 838 sequential = true; 839 840 symbol_conf.priv_size = sizeof(int); 841 symbol_conf.try_vmlinux_path = true; 842 843 844 if (symbol__init(NULL) < 0) 845 return -1; 846 847 if (skip != NULL) 848 skiplist = intlist__new(skip); 849 /* 850 * Tests that create BPF maps, for instance, need more than the 64K 851 * default: 852 */ 853 rlimit__bump_memlock(); 854 855 suites = build_suites(); 856 ret = __cmd_test(suites, argc, argv, skiplist); 857 free(suites); 858 return ret; 859 } 860