#include <stdlib.h> #include <sys/types.h> #include <unistd.h> #include <sys/prctl.h> #include "tests.h" #include "thread_map.h" #include "debug.h" #define NAME (const char *) "perf" #define NAMEUL (unsigned long) NAME int test__thread_map(int subtest __maybe_unused) { struct thread_map *map; TEST_ASSERT_VAL("failed to set process name", !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0)); /* test map on current pid */ map = thread_map__new_by_pid(getpid()); TEST_ASSERT_VAL("failed to alloc map", map); thread_map__read_comms(map); TEST_ASSERT_VAL("wrong nr", map->nr == 1); TEST_ASSERT_VAL("wrong pid", thread_map__pid(map, 0) == getpid()); TEST_ASSERT_VAL("wrong comm", thread_map__comm(map, 0) && !strcmp(thread_map__comm(map, 0), NAME)); TEST_ASSERT_VAL("wrong refcnt", atomic_read(&map->refcnt) == 1); thread_map__put(map); /* test dummy pid */ map = thread_map__new_dummy(); TEST_ASSERT_VAL("failed to alloc map", map); thread_map__read_comms(map); TEST_ASSERT_VAL("wrong nr", map->nr == 1); TEST_ASSERT_VAL("wrong pid", thread_map__pid(map, 0) == -1); TEST_ASSERT_VAL("wrong comm", thread_map__comm(map, 0) && !strcmp(thread_map__comm(map, 0), "dummy")); TEST_ASSERT_VAL("wrong refcnt", atomic_read(&map->refcnt) == 1); thread_map__put(map); return 0; } static int process_event(struct perf_tool *tool __maybe_unused, union perf_event *event, struct perf_sample *sample __maybe_unused, struct machine *machine __maybe_unused) { struct thread_map_event *map = &event->thread_map; struct thread_map *threads; TEST_ASSERT_VAL("wrong nr", map->nr == 1); TEST_ASSERT_VAL("wrong pid", map->entries[0].pid == (u64) getpid()); TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, NAME)); threads = thread_map__new_event(&event->thread_map); TEST_ASSERT_VAL("failed to alloc map", threads); TEST_ASSERT_VAL("wrong nr", threads->nr == 1); TEST_ASSERT_VAL("wrong pid", thread_map__pid(threads, 0) == getpid()); TEST_ASSERT_VAL("wrong comm", thread_map__comm(threads, 0) && !strcmp(thread_map__comm(threads, 0), NAME)); TEST_ASSERT_VAL("wrong refcnt", atomic_read(&threads->refcnt) == 1); thread_map__put(threads); return 0; } int test__thread_map_synthesize(int subtest __maybe_unused) { struct thread_map *threads; TEST_ASSERT_VAL("failed to set process name", !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0)); /* test map on current pid */ threads = thread_map__new_by_pid(getpid()); TEST_ASSERT_VAL("failed to alloc map", threads); thread_map__read_comms(threads); TEST_ASSERT_VAL("failed to synthesize map", !perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL)); return 0; } int test__thread_map_remove(int subtest __maybe_unused) { struct thread_map *threads; char *str; int i; TEST_ASSERT_VAL("failed to allocate map string", asprintf(&str, "%d,%d", getpid(), getppid()) >= 0); threads = thread_map__new_str(str, NULL, 0); TEST_ASSERT_VAL("failed to allocate thread_map", threads); if (verbose) thread_map__fprintf(threads, stderr); TEST_ASSERT_VAL("failed to remove thread", !thread_map__remove(threads, 0)); TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1); if (verbose) thread_map__fprintf(threads, stderr); TEST_ASSERT_VAL("failed to remove thread", !thread_map__remove(threads, 0)); TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0); if (verbose) thread_map__fprintf(threads, stderr); TEST_ASSERT_VAL("failed to not remove thread", thread_map__remove(threads, 0)); for (i = 0; i < threads->nr; i++) free(threads->map[i].comm); free(threads); return 0; }