1 #include <stdlib.h> 2 #include <sys/types.h> 3 #include <unistd.h> 4 #include <sys/prctl.h> 5 #include "tests.h" 6 #include "thread_map.h" 7 #include "debug.h" 8 9 #define NAME (const char *) "perf" 10 #define NAMEUL (unsigned long) NAME 11 12 int test__thread_map(struct test *test __maybe_unused, int subtest __maybe_unused) 13 { 14 struct thread_map *map; 15 16 TEST_ASSERT_VAL("failed to set process name", 17 !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0)); 18 19 /* test map on current pid */ 20 map = thread_map__new_by_pid(getpid()); 21 TEST_ASSERT_VAL("failed to alloc map", map); 22 23 thread_map__read_comms(map); 24 25 TEST_ASSERT_VAL("wrong nr", map->nr == 1); 26 TEST_ASSERT_VAL("wrong pid", 27 thread_map__pid(map, 0) == getpid()); 28 TEST_ASSERT_VAL("wrong comm", 29 thread_map__comm(map, 0) && 30 !strcmp(thread_map__comm(map, 0), NAME)); 31 TEST_ASSERT_VAL("wrong refcnt", 32 refcount_read(&map->refcnt) == 1); 33 thread_map__put(map); 34 35 /* test dummy pid */ 36 map = thread_map__new_dummy(); 37 TEST_ASSERT_VAL("failed to alloc map", map); 38 39 thread_map__read_comms(map); 40 41 TEST_ASSERT_VAL("wrong nr", map->nr == 1); 42 TEST_ASSERT_VAL("wrong pid", thread_map__pid(map, 0) == -1); 43 TEST_ASSERT_VAL("wrong comm", 44 thread_map__comm(map, 0) && 45 !strcmp(thread_map__comm(map, 0), "dummy")); 46 TEST_ASSERT_VAL("wrong refcnt", 47 refcount_read(&map->refcnt) == 1); 48 thread_map__put(map); 49 return 0; 50 } 51 52 static int process_event(struct perf_tool *tool __maybe_unused, 53 union perf_event *event, 54 struct perf_sample *sample __maybe_unused, 55 struct machine *machine __maybe_unused) 56 { 57 struct thread_map_event *map = &event->thread_map; 58 struct thread_map *threads; 59 60 TEST_ASSERT_VAL("wrong nr", map->nr == 1); 61 TEST_ASSERT_VAL("wrong pid", map->entries[0].pid == (u64) getpid()); 62 TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, NAME)); 63 64 threads = thread_map__new_event(&event->thread_map); 65 TEST_ASSERT_VAL("failed to alloc map", threads); 66 67 TEST_ASSERT_VAL("wrong nr", threads->nr == 1); 68 TEST_ASSERT_VAL("wrong pid", 69 thread_map__pid(threads, 0) == getpid()); 70 TEST_ASSERT_VAL("wrong comm", 71 thread_map__comm(threads, 0) && 72 !strcmp(thread_map__comm(threads, 0), NAME)); 73 TEST_ASSERT_VAL("wrong refcnt", 74 refcount_read(&threads->refcnt) == 1); 75 thread_map__put(threads); 76 return 0; 77 } 78 79 int test__thread_map_synthesize(struct test *test __maybe_unused, int subtest __maybe_unused) 80 { 81 struct thread_map *threads; 82 83 TEST_ASSERT_VAL("failed to set process name", 84 !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0)); 85 86 /* test map on current pid */ 87 threads = thread_map__new_by_pid(getpid()); 88 TEST_ASSERT_VAL("failed to alloc map", threads); 89 90 thread_map__read_comms(threads); 91 92 TEST_ASSERT_VAL("failed to synthesize map", 93 !perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL)); 94 95 return 0; 96 } 97 98 int test__thread_map_remove(struct test *test __maybe_unused, int subtest __maybe_unused) 99 { 100 struct thread_map *threads; 101 char *str; 102 int i; 103 104 TEST_ASSERT_VAL("failed to allocate map string", 105 asprintf(&str, "%d,%d", getpid(), getppid()) >= 0); 106 107 threads = thread_map__new_str(str, NULL, 0); 108 109 TEST_ASSERT_VAL("failed to allocate thread_map", 110 threads); 111 112 if (verbose > 0) 113 thread_map__fprintf(threads, stderr); 114 115 TEST_ASSERT_VAL("failed to remove thread", 116 !thread_map__remove(threads, 0)); 117 118 TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1); 119 120 if (verbose > 0) 121 thread_map__fprintf(threads, stderr); 122 123 TEST_ASSERT_VAL("failed to remove thread", 124 !thread_map__remove(threads, 0)); 125 126 TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0); 127 128 if (verbose > 0) 129 thread_map__fprintf(threads, stderr); 130 131 TEST_ASSERT_VAL("failed to not remove thread", 132 thread_map__remove(threads, 0)); 133 134 for (i = 0; i < threads->nr; i++) 135 free(threads->map[i].comm); 136 137 free(threads); 138 return 0; 139 } 140