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 .desc = "Test filtering hist entries", 128 .func = test__hists_filter, 129 }, 130 { 131 .desc = "Test mmap thread lookup", 132 .func = test__mmap_thread_lookup, 133 }, 134 { 135 .desc = "Test thread mg sharing", 136 .func = test__thread_mg_share, 137 }, 138 { 139 .func = NULL, 140 }, 141 }; 142 143 static bool perf_test__matches(int curr, int argc, const char *argv[]) 144 { 145 int i; 146 147 if (argc == 0) 148 return true; 149 150 for (i = 0; i < argc; ++i) { 151 char *end; 152 long nr = strtoul(argv[i], &end, 10); 153 154 if (*end == '\0') { 155 if (nr == curr + 1) 156 return true; 157 continue; 158 } 159 160 if (strstr(tests[curr].desc, argv[i])) 161 return true; 162 } 163 164 return false; 165 } 166 167 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) 168 { 169 int i = 0; 170 int width = 0; 171 172 while (tests[i].func) { 173 int len = strlen(tests[i].desc); 174 175 if (width < len) 176 width = len; 177 ++i; 178 } 179 180 i = 0; 181 while (tests[i].func) { 182 int curr = i++, err; 183 184 if (!perf_test__matches(curr, argc, argv)) 185 continue; 186 187 pr_info("%2d: %-*s:", i, width, tests[curr].desc); 188 189 if (intlist__find(skiplist, i)) { 190 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); 191 continue; 192 } 193 194 pr_debug("\n--- start ---\n"); 195 err = tests[curr].func(); 196 pr_debug("---- end ----\n%s:", tests[curr].desc); 197 198 switch (err) { 199 case TEST_OK: 200 pr_info(" Ok\n"); 201 break; 202 case TEST_SKIP: 203 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n"); 204 break; 205 case TEST_FAIL: 206 default: 207 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n"); 208 break; 209 } 210 } 211 212 return 0; 213 } 214 215 static int perf_test__list(int argc, const char **argv) 216 { 217 int i = 0; 218 219 while (tests[i].func) { 220 int curr = i++; 221 222 if (argc > 1 && !strstr(tests[curr].desc, argv[1])) 223 continue; 224 225 pr_info("%2d: %s\n", i, tests[curr].desc); 226 } 227 228 return 0; 229 } 230 231 int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused) 232 { 233 const char * const test_usage[] = { 234 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]", 235 NULL, 236 }; 237 const char *skip = NULL; 238 const struct option test_options[] = { 239 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), 240 OPT_INCR('v', "verbose", &verbose, 241 "be more verbose (show symbol address, etc)"), 242 OPT_END() 243 }; 244 struct intlist *skiplist = NULL; 245 246 argc = parse_options(argc, argv, test_options, test_usage, 0); 247 if (argc >= 1 && !strcmp(argv[0], "list")) 248 return perf_test__list(argc, argv); 249 250 symbol_conf.priv_size = sizeof(int); 251 symbol_conf.sort_by_name = true; 252 symbol_conf.try_vmlinux_path = true; 253 254 if (symbol__init() < 0) 255 return -1; 256 257 if (skip != NULL) 258 skiplist = intlist__new(skip); 259 260 return __cmd_test(argc, argv, skiplist); 261 } 262