4 * Builtin regression testing command: ever growing number of sanity tests
14 #include <subcmd/parse-options.h>
17 struct test __weak arch_tests[] = {
23 static struct test generic_tests[] = {
25 .desc = "vmlinux symtab matches kallsyms",
26 .func = test__vmlinux_matches_kallsyms,
29 .desc = "detect openat syscall event",
30 .func = test__openat_syscall_event,
33 .desc = "detect openat syscall event on all cpus",
34 .func = test__openat_syscall_event_on_all_cpus,
37 .desc = "read samples using the mmap interface",
38 .func = test__basic_mmap,
41 .desc = "parse events tests",
42 .func = test__parse_events,
45 .desc = "Validate PERF_RECORD_* events & perf_sample fields",
46 .func = test__PERF_RECORD,
49 .desc = "Test perf pmu format parsing",
53 .desc = "Test dso data read",
54 .func = test__dso_data,
57 .desc = "Test dso data cache",
58 .func = test__dso_data_cache,
61 .desc = "Test dso data reopen",
62 .func = test__dso_data_reopen,
65 .desc = "roundtrip evsel->name check",
66 .func = test__perf_evsel__roundtrip_name_test,
69 .desc = "Check parsing of sched tracepoints fields",
70 .func = test__perf_evsel__tp_sched_test,
73 .desc = "Generate and check syscalls:sys_enter_openat event fields",
74 .func = test__syscall_openat_tp_fields,
77 .desc = "struct perf_event_attr setup",
81 .desc = "Test matching and linking multiple hists",
82 .func = test__hists_link,
85 .desc = "Try 'import perf' in python, checking link problems",
86 .func = test__python_use,
89 .desc = "Test breakpoint overflow signal handler",
90 .func = test__bp_signal,
93 .desc = "Test breakpoint overflow sampling",
94 .func = test__bp_signal_overflow,
97 .desc = "Test number of exit event of a simple workload",
98 .func = test__task_exit,
101 .desc = "Test software clock events have valid period values",
102 .func = test__sw_clock_freq,
105 .desc = "Test object code reading",
106 .func = test__code_reading,
109 .desc = "Test sample parsing",
110 .func = test__sample_parsing,
113 .desc = "Test using a dummy software event to keep tracking",
114 .func = test__keep_tracking,
117 .desc = "Test parsing with no sample_id_all bit set",
118 .func = test__parse_no_sample_id_all,
121 .desc = "Test filtering hist entries",
122 .func = test__hists_filter,
125 .desc = "Test mmap thread lookup",
126 .func = test__mmap_thread_lookup,
129 .desc = "Test thread mg sharing",
130 .func = test__thread_mg_share,
133 .desc = "Test output sorting of hist entries",
134 .func = test__hists_output,
137 .desc = "Test cumulation of child hist entries",
138 .func = test__hists_cumulate,
141 .desc = "Test tracking with sched_switch",
142 .func = test__switch_tracking,
145 .desc = "Filter fds with revents mask in a fdarray",
146 .func = test__fdarray__filter,
149 .desc = "Add fd to a fdarray, making it autogrow",
150 .func = test__fdarray__add,
153 .desc = "Test kmod_path__parse function",
154 .func = test__kmod_path__parse,
157 .desc = "Test thread map",
158 .func = test__thread_map,
161 .desc = "Test LLVM searching and compiling",
164 .skip_if_fail = true,
165 .get_nr = test__llvm_subtest_get_nr,
166 .get_desc = test__llvm_subtest_get_desc,
170 .desc = "Test topology in session",
171 .func = test_session_topology,
174 .desc = "Test BPF filter",
177 .skip_if_fail = true,
178 .get_nr = test__bpf_subtest_get_nr,
179 .get_desc = test__bpf_subtest_get_desc,
183 .desc = "Test thread map synthesize",
184 .func = test__thread_map_synthesize,
187 .desc = "Test cpu map synthesize",
188 .func = test__cpu_map_synthesize,
191 .desc = "Test stat config synthesize",
192 .func = test__synthesize_stat_config,
195 .desc = "Test stat synthesize",
196 .func = test__synthesize_stat,
199 .desc = "Test stat round synthesize",
200 .func = test__synthesize_stat_round,
203 .desc = "Test attr update synthesize",
204 .func = test__event_update,
211 static struct test *tests[] = {
216 static bool perf_test__matches(struct test *test, int curr, int argc, const char *argv[])
223 for (i = 0; i < argc; ++i) {
225 long nr = strtoul(argv[i], &end, 10);
233 if (strcasestr(test->desc, argv[i]))
240 static int run_test(struct test *test, int subtest)
242 int status, err = -1, child = fork();
243 char sbuf[STRERR_BUFSIZE];
246 pr_err("failed to fork test: %s\n",
247 strerror_r(errno, sbuf, sizeof(sbuf)));
252 pr_debug("test child forked, pid %d\n", getpid());
254 int nullfd = open("/dev/null", O_WRONLY);
256 close(STDERR_FILENO);
257 close(STDOUT_FILENO);
259 dup2(nullfd, STDOUT_FILENO);
260 dup2(STDOUT_FILENO, STDERR_FILENO);
264 signal(SIGSEGV, sighandler_dump_stack);
265 signal(SIGFPE, sighandler_dump_stack);
268 err = test->func(subtest);
274 if (WIFEXITED(status)) {
275 err = (signed char)WEXITSTATUS(status);
276 pr_debug("test child finished with %d\n", err);
277 } else if (WIFSIGNALED(status)) {
279 pr_debug("test child interrupted\n");
285 #define for_each_test(j, t) \
286 for (j = 0; j < ARRAY_SIZE(tests); j++) \
287 for (t = &tests[j][0]; t->func; t++)
289 static int test_and_print(struct test *t, bool force_skip, int subtest)
294 pr_debug("\n--- start ---\n");
295 err = run_test(t, subtest);
296 pr_debug("---- end ----\n");
298 pr_debug("\n--- force skipped ---\n");
302 if (!t->subtest.get_nr)
303 pr_debug("%s:", t->desc);
305 pr_debug("%s subtest %d:", t->desc, subtest);
312 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
316 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
323 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
330 for_each_test(j, t) {
331 int len = strlen(t->desc);
337 for_each_test(j, t) {
340 if (!perf_test__matches(t, curr, argc, argv))
343 pr_info("%2d: %-*s:", i, width, t->desc);
345 if (intlist__find(skiplist, i)) {
346 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
350 if (!t->subtest.get_nr) {
351 test_and_print(t, false, -1);
353 int subn = t->subtest.get_nr();
355 * minus 2 to align with normal testcases.
356 * For subtest we print additional '.x' in number.
359 * 35: Test LLVM searching and compiling :
360 * 35.1: Basic BPF llvm compiling test : Ok
362 int subw = width > 2 ? width - 2 : width;
367 color_fprintf(stderr, PERF_COLOR_YELLOW,
368 " Skip (not compiled in)\n");
373 for (subi = 0; subi < subn; subi++) {
374 int len = strlen(t->subtest.get_desc(subi));
380 for (subi = 0; subi < subn; subi++) {
381 pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
382 t->subtest.get_desc(subi));
383 err = test_and_print(t, skip, subi);
384 if (err != TEST_OK && t->subtest.skip_if_fail)
393 static int perf_test__list(int argc, const char **argv)
399 for_each_test(j, t) {
400 if (argc > 1 && !strstr(t->desc, argv[1]))
403 pr_info("%2d: %s\n", ++i, t->desc);
409 int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused)
411 const char *test_usage[] = {
412 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
415 const char *skip = NULL;
416 const struct option test_options[] = {
417 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
418 OPT_INCR('v', "verbose", &verbose,
419 "be more verbose (show symbol address, etc)"),
422 const char * const test_subcommands[] = { "list", NULL };
423 struct intlist *skiplist = NULL;
424 int ret = hists__init();
429 argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
430 if (argc >= 1 && !strcmp(argv[0], "list"))
431 return perf_test__list(argc, argv);
433 symbol_conf.priv_size = sizeof(int);
434 symbol_conf.sort_by_name = true;
435 symbol_conf.try_vmlinux_path = true;
437 if (symbol__init(NULL) < 0)
441 skiplist = intlist__new(skip);
443 return __cmd_test(argc, argv, skiplist);