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 #if defined(__x86_64__) || defined(__i386__) 119 #ifdef HAVE_DWARF_UNWIND_SUPPORT 120 { 121 .desc = "Test dwarf unwind", 122 .func = test__dwarf_unwind, 123 }, 124 #endif 125 #endif 126 { 127 .func = NULL, 128 }, 129 }; 130 131 static bool perf_test__matches(int curr, int argc, const char *argv[]) 132 { 133 int i; 134 135 if (argc == 0) 136 return true; 137 138 for (i = 0; i < argc; ++i) { 139 char *end; 140 long nr = strtoul(argv[i], &end, 10); 141 142 if (*end == '\0') { 143 if (nr == curr + 1) 144 return true; 145 continue; 146 } 147 148 if (strstr(tests[curr].desc, argv[i])) 149 return true; 150 } 151 152 return false; 153 } 154 155 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) 156 { 157 int i = 0; 158 int width = 0; 159 160 while (tests[i].func) { 161 int len = strlen(tests[i].desc); 162 163 if (width < len) 164 width = len; 165 ++i; 166 } 167 168 i = 0; 169 while (tests[i].func) { 170 int curr = i++, err; 171 172 if (!perf_test__matches(curr, argc, argv)) 173 continue; 174 175 pr_info("%2d: %-*s:", i, width, tests[curr].desc); 176 177 if (intlist__find(skiplist, i)) { 178 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); 179 continue; 180 } 181 182 pr_debug("\n--- start ---\n"); 183 err = tests[curr].func(); 184 pr_debug("---- end ----\n%s:", tests[curr].desc); 185 186 switch (err) { 187 case TEST_OK: 188 pr_info(" Ok\n"); 189 break; 190 case TEST_SKIP: 191 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n"); 192 break; 193 case TEST_FAIL: 194 default: 195 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n"); 196 break; 197 } 198 } 199 200 return 0; 201 } 202 203 static int perf_test__list(int argc, const char **argv) 204 { 205 int i = 0; 206 207 while (tests[i].func) { 208 int curr = i++; 209 210 if (argc > 1 && !strstr(tests[curr].desc, argv[1])) 211 continue; 212 213 pr_info("%2d: %s\n", i, tests[curr].desc); 214 } 215 216 return 0; 217 } 218 219 int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused) 220 { 221 const char * const test_usage[] = { 222 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]", 223 NULL, 224 }; 225 const char *skip = NULL; 226 const struct option test_options[] = { 227 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), 228 OPT_INCR('v', "verbose", &verbose, 229 "be more verbose (show symbol address, etc)"), 230 OPT_END() 231 }; 232 struct intlist *skiplist = NULL; 233 234 argc = parse_options(argc, argv, test_options, test_usage, 0); 235 if (argc >= 1 && !strcmp(argv[0], "list")) 236 return perf_test__list(argc, argv); 237 238 symbol_conf.priv_size = sizeof(int); 239 symbol_conf.sort_by_name = true; 240 symbol_conf.try_vmlinux_path = true; 241 242 if (symbol__init() < 0) 243 return -1; 244 245 if (skip != NULL) 246 skiplist = intlist__new(skip); 247 248 return __cmd_test(argc, argv, skiplist); 249 } 250