1 /* 2 * builtin-test.c 3 * 4 * Builtin regression testing command: ever growing number of sanity tests 5 */ 6 #include "builtin.h" 7 #include "intlist.h" 8 #include "tests.h" 9 #include "debug.h" 10 #include "color.h" 11 #include "parse-options.h" 12 #include "symbol.h" 13 14 static struct test { 15 const char *desc; 16 int (*func)(void); 17 } tests[] = { 18 { 19 .desc = "vmlinux symtab matches kallsyms", 20 .func = test__vmlinux_matches_kallsyms, 21 }, 22 { 23 .desc = "detect open syscall event", 24 .func = test__open_syscall_event, 25 }, 26 { 27 .desc = "detect open syscall event on all cpus", 28 .func = test__open_syscall_event_on_all_cpus, 29 }, 30 { 31 .desc = "read samples using the mmap interface", 32 .func = test__basic_mmap, 33 }, 34 { 35 .desc = "parse events tests", 36 .func = test__parse_events, 37 }, 38 #if defined(__x86_64__) || defined(__i386__) 39 { 40 .desc = "x86 rdpmc test", 41 .func = test__rdpmc, 42 }, 43 #endif 44 { 45 .desc = "Validate PERF_RECORD_* events & perf_sample fields", 46 .func = test__PERF_RECORD, 47 }, 48 { 49 .desc = "Test perf pmu format parsing", 50 .func = test__pmu, 51 }, 52 { 53 .desc = "Test dso data interface", 54 .func = test__dso_data, 55 }, 56 { 57 .desc = "roundtrip evsel->name check", 58 .func = test__perf_evsel__roundtrip_name_test, 59 }, 60 { 61 .desc = "Check parsing of sched tracepoints fields", 62 .func = test__perf_evsel__tp_sched_test, 63 }, 64 { 65 .desc = "Generate and check syscalls:sys_enter_open event fields", 66 .func = test__syscall_open_tp_fields, 67 }, 68 { 69 .desc = "struct perf_event_attr setup", 70 .func = test__attr, 71 }, 72 { 73 .desc = "Test matching and linking mutliple hists", 74 .func = test__hists_link, 75 }, 76 { 77 .desc = "Try 'use perf' in python, checking link problems", 78 .func = test__python_use, 79 }, 80 { 81 .desc = "Test breakpoint overflow signal handler", 82 .func = test__bp_signal, 83 }, 84 { 85 .desc = "Test breakpoint overflow sampling", 86 .func = test__bp_signal_overflow, 87 }, 88 { 89 .desc = "Test number of exit event of a simple workload", 90 .func = test__task_exit, 91 }, 92 { 93 .desc = "Test software clock events have valid period values", 94 .func = test__sw_clock_freq, 95 }, 96 { 97 .func = NULL, 98 }, 99 }; 100 101 static bool perf_test__matches(int curr, int argc, const char *argv[]) 102 { 103 int i; 104 105 if (argc == 0) 106 return true; 107 108 for (i = 0; i < argc; ++i) { 109 char *end; 110 long nr = strtoul(argv[i], &end, 10); 111 112 if (*end == '\0') { 113 if (nr == curr + 1) 114 return true; 115 continue; 116 } 117 118 if (strstr(tests[curr].desc, argv[i])) 119 return true; 120 } 121 122 return false; 123 } 124 125 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) 126 { 127 int i = 0; 128 int width = 0; 129 130 while (tests[i].func) { 131 int len = strlen(tests[i].desc); 132 133 if (width < len) 134 width = len; 135 ++i; 136 } 137 138 i = 0; 139 while (tests[i].func) { 140 int curr = i++, err; 141 142 if (!perf_test__matches(curr, argc, argv)) 143 continue; 144 145 pr_info("%2d: %-*s:", i, width, tests[curr].desc); 146 147 if (intlist__find(skiplist, i)) { 148 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); 149 continue; 150 } 151 152 pr_debug("\n--- start ---\n"); 153 err = tests[curr].func(); 154 pr_debug("---- end ----\n%s:", tests[curr].desc); 155 156 switch (err) { 157 case TEST_OK: 158 pr_info(" Ok\n"); 159 break; 160 case TEST_SKIP: 161 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n"); 162 break; 163 case TEST_FAIL: 164 default: 165 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n"); 166 break; 167 } 168 } 169 170 return 0; 171 } 172 173 static int perf_test__list(int argc, const char **argv) 174 { 175 int i = 0; 176 177 while (tests[i].func) { 178 int curr = i++; 179 180 if (argc > 1 && !strstr(tests[curr].desc, argv[1])) 181 continue; 182 183 pr_info("%2d: %s\n", i, tests[curr].desc); 184 } 185 186 return 0; 187 } 188 189 int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused) 190 { 191 const char * const test_usage[] = { 192 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]", 193 NULL, 194 }; 195 const char *skip = NULL; 196 const struct option test_options[] = { 197 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), 198 OPT_INCR('v', "verbose", &verbose, 199 "be more verbose (show symbol address, etc)"), 200 OPT_END() 201 }; 202 struct intlist *skiplist = NULL; 203 204 argc = parse_options(argc, argv, test_options, test_usage, 0); 205 if (argc >= 1 && !strcmp(argv[0], "list")) 206 return perf_test__list(argc, argv); 207 208 symbol_conf.priv_size = sizeof(int); 209 symbol_conf.sort_by_name = true; 210 symbol_conf.try_vmlinux_path = true; 211 212 if (symbol__init() < 0) 213 return -1; 214 215 if (skip != NULL) 216 skiplist = intlist__new(skip); 217 218 return __cmd_test(argc, argv, skiplist); 219 } 220