tools/tests/darwintests/thread_group_set_32261625.c

   1 #include <darwintest.h>
   2 #include <ktrace.h>
   3 #include <sys/kdebug.h>
   4
   5 #define TEST_EVENTID (0xfedcbb00)
   6
   7 static void*
   8 newthread(void *arg)
   9 {
  10 #pragma unused(arg)
  11         while (1) {
  12                 kdebug_trace(TEST_EVENTID, 0, 0, 0, 0);
  13                 sleep(1);
  14         }
  15 }
  16
  17 #define TEST_TIMEOUT (15 * NSEC_PER_SEC)
  18
  19 T_DECL(thread_group_set, "Checks that new threads get a THREAD_GROUP_SET tracepoint with a non-zero tid") {
  20         pthread_t thread;
  21         __block int seen_new_thread = 0, __block seen_thread_group_set = 0;
  22
  23         ktrace_machine_t machine = ktrace_machine_create_current();
  24         T_WITH_ERRNO; T_ASSERT_NOTNULL(machine, "ktrace_get_machine");
  25
  26         bool has_tg = false;
  27         if (ktrace_machine_has_thread_groups(machine, &has_tg) || !has_tg) {
  28                 T_SKIP("thread groups not supported on this system");
  29         }
  30         ktrace_machine_destroy(machine);
  31
  32         ktrace_session_t session = ktrace_session_create();
  33         T_WITH_ERRNO; T_ASSERT_NOTNULL(session, "ktrace_session_create");
  34
  35         ktrace_set_interactive(session);
  36
  37         ktrace_set_completion_handler(session, ^{
  38                 ktrace_session_destroy(session);
  39                 T_ASSERT_TRUE(seen_new_thread, "seen new thread tracepoint");
  40                 T_END;
  41         });
  42
  43         ktrace_events_single(session, TEST_EVENTID, ^(__unused ktrace_event_t e) {
  44                 T_EXPECT_TRUE(seen_thread_group_set, "seen THREAD_GROUP_SET tracepoint");
  45                 seen_new_thread = 1;
  46                 ktrace_end(session, 1);
  47         });
  48
  49         ktrace_events_single(session, MACHDBG_CODE(DBG_MACH_THREAD_GROUP, MACH_THREAD_GROUP_SET), ^(ktrace_event_t e) {
  50                 T_EXPECT_GT(e->arg3, (uintptr_t)0, "tid on THREAD_GROUP_SET");
  51                 seen_thread_group_set = 1;
  52         });
  53
  54         dispatch_after(dispatch_time(DISPATCH_TIME_NOW, TEST_TIMEOUT), dispatch_get_main_queue(), ^{
  55                 ktrace_end(session, 0);
  56         });
  57
  58         T_ASSERT_POSIX_SUCCESS(ktrace_start(session, dispatch_get_main_queue()), "ktrace_start");
  59
  60         T_EXPECT_POSIX_SUCCESS(pthread_create(&thread, NULL, newthread, NULL), "pthread_create");
  61         T_EXPECT_POSIX_SUCCESS(pthread_detach(thread), "pthread_detach");
  62
  63         dispatch_main();
  64 }