295   SigActionT sa = {};  in TestSigAction()  local
296   sigaddset_fn(&sa.sa_mask, sig);  in TestSigAction()
297   sa.sa_flags = SA_ONSTACK;  in TestSigAction()
298   sa.sa_handler = no_op_signal_handler;  in TestSigAction()
299   ASSERT_EQ(0, sigaction_fn(sig, &sa, nullptr));  in TestSigAction()
302   sa = {};  in TestSigAction()
303   ASSERT_EQ(0, sigaction_fn(sig, nullptr, &sa));  in TestSigAction()
304   ASSERT_TRUE(sa.sa_handler == no_op_signal_handler);  in TestSigAction()
305   ASSERT_TRUE((void*) sa.sa_sigaction == (void*) sa.sa_handler);  in TestSigAction()
306   ASSERT_EQ(static_cast<unsigned>(SA_ONSTACK), sa.sa_flags & ~sa_restorer);  in TestSigAction()
308   ASSERT_EQ(bool(sa.sa_flags & sa_restorer), bool(sa.sa_restorer));  in TestSigAction()
313   sa = {};  in TestSigAction()
314   sigaddset_fn(&sa.sa_mask, sig);  in TestSigAction()
315   sa.sa_flags = SA_ONSTACK | SA_SIGINFO;  in TestSigAction()
316   sa.sa_sigaction = no_op_sigaction;  in TestSigAction()
317   ASSERT_EQ(0, sigaction_fn(sig, &sa, nullptr));  in TestSigAction()
320   sa = {};  in TestSigAction()
321   ASSERT_EQ(0, sigaction_fn(sig, nullptr, &sa));  in TestSigAction()
322   ASSERT_TRUE(sa.sa_sigaction == no_op_sigaction);  in TestSigAction()
323   ASSERT_TRUE((void*) sa.sa_sigaction == (void*) sa.sa_handler);  in TestSigAction()
324   ASSERT_EQ(static_cast<unsigned>(SA_ONSTACK | SA_SIGINFO), sa.sa_flags & ~sa_restorer);  in TestSigAction()
326   ASSERT_EQ(bool(sa.sa_flags & sa_restorer), bool(sa.sa_restorer));  in TestSigAction()
393   struct sigaction sa = {};  in TEST()  local
394   sa.sa_handler = [](int) { sigset = GetSignalMask(); };  in TEST()
395   sa.sa_flags = SA_ONSTACK | SA_NODEFER;  in TEST()
396   sigfillset(&sa.sa_mask);  in TEST()
397   sigaction(SIGUSR1, &sa, nullptr);  in TEST()
413   struct sigaction64 sa = {};  in TEST()  local
414   sa.sa_handler = [](int) { sigset = GetSignalMask(); };  in TEST()
415   sa.sa_flags = SA_ONSTACK | SA_NODEFER;  in TEST()
416   sigfillset64(&sa.sa_mask);  in TEST()
417   sigaction64(SIGUSR1, &sa, nullptr);  in TEST()
846   struct sigaction sa;  in TEST()  local
847   ASSERT_EQ(0, sigaction(SIGALRM, nullptr, &sa));  in TEST()
848   EXPECT_EQ(SIG_IGN, sa.sa_handler);  in TEST()