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 multiple 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 #if defined(__x86_64__) || defined(__i386__) 97 { 98 .desc = "Test converting perf time to TSC", 99 .func = test__perf_time_to_tsc, 100 }, 101 #endif 102 { 103 .desc = "Test object code reading", 104 .func = test__code_reading, 105 }, 106 { 107 .desc = "Test sample parsing", 108 .func = test__sample_parsing, 109 }, 110 { 111 .desc = "Test using a dummy software event to keep tracking", 112 .func = test__keep_tracking, 113 }, 114 { 115 .desc = "Test parsing with no sample_id_all bit set", 116 .func = test__parse_no_sample_id_all, 117 }, 118 { 119 .func = NULL, 120 }, 121 }; 122 123 static bool perf_test__matches(int curr, int argc, const char *argv[]) 124 { 125 int i; 126 127 if (argc == 0) 128 return true; 129 130 for (i = 0; i < argc; ++i) { 131 char *end; 132 long nr = strtoul(argv[i], &end, 10); 133 134 if (*end == '\0') { 135 if (nr == curr + 1) 136 return true; 137 continue; 138 } 139 140 if (strstr(tests[curr].desc, argv[i])) 141 return true; 142 } 143 144 return false; 145 } 146 147 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) 148 { 149 int i = 0; 150 int width = 0; 151 152 while (tests[i].func) { 153 int len = strlen(tests[i].desc); 154 155 if (width < len) 156 width = len; 157 ++i; 158 } 159 160 i = 0; 161 while (tests[i].func) { 162 int curr = i++, err; 163 164 if (!perf_test__matches(curr, argc, argv)) 165 continue; 166 167 pr_info("%2d: %-*s:", i, width, tests[curr].desc); 168 169 if (intlist__find(skiplist, i)) { 170 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); 171 continue; 172 } 173 174 pr_debug("\n--- start ---\n"); 175 err = tests[curr].func(); 176 pr_debug("---- end ----\n%s:", tests[curr].desc); 177 178 switch (err) { 179 case TEST_OK: 180 pr_info(" Ok\n"); 181 break; 182 case TEST_SKIP: 183 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n"); 184 break; 185 case TEST_FAIL: 186 default: 187 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n"); 188 break; 189 } 190 } 191 192 return 0; 193 } 194 195 static int perf_test__list(int argc, const char **argv) 196 { 197 int i = 0; 198 199 while (tests[i].func) { 200 int curr = i++; 201 202 if (argc > 1 && !strstr(tests[curr].desc, argv[1])) 203 continue; 204 205 pr_info("%2d: %s\n", i, tests[curr].desc); 206 } 207 208 return 0; 209 } 210 211 int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused) 212 { 213 const char * const test_usage[] = { 214 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]", 215 NULL, 216 }; 217 const char *skip = NULL; 218 const struct option test_options[] = { 219 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), 220 OPT_INCR('v', "verbose", &verbose, 221 "be more verbose (show symbol address, etc)"), 222 OPT_END() 223 }; 224 struct intlist *skiplist = NULL; 225 226 argc = parse_options(argc, argv, test_options, test_usage, 0); 227 if (argc >= 1 && !strcmp(argv[0], "list")) 228 return perf_test__list(argc, argv); 229 230 symbol_conf.priv_size = sizeof(int); 231 symbol_conf.sort_by_name = true; 232 symbol_conf.try_vmlinux_path = true; 233 234 if (symbol__init() < 0) 235 return -1; 236 237 if (skip != NULL) 238 skiplist = intlist__new(skip); 239 240 return __cmd_test(argc, argv, skiplist); 241 } 242