270   SigActionT sa = {};  in TestSigAction()  local
271   sigaddset_fn(&sa.sa_mask, sig);  in TestSigAction()
272   sa.sa_flags = SA_ONSTACK;  in TestSigAction()
273   sa.sa_handler = no_op_signal_handler;  in TestSigAction()
274   ASSERT_EQ(0, sigaction_fn(sig, &sa, nullptr));  in TestSigAction()
277   sa = {};  in TestSigAction()
278   ASSERT_EQ(0, sigaction_fn(sig, nullptr, &sa));  in TestSigAction()
279   ASSERT_TRUE(sa.sa_handler == no_op_signal_handler);  in TestSigAction()
280   ASSERT_TRUE((void*) sa.sa_sigaction == (void*) sa.sa_handler);  in TestSigAction()
281   ASSERT_EQ(static_cast<unsigned>(SA_ONSTACK), sa.sa_flags & ~sa_restorer);  in TestSigAction()
283   ASSERT_EQ(bool(sa.sa_flags & sa_restorer), bool(sa.sa_restorer));  in TestSigAction()
288   sa = {};  in TestSigAction()
289   sigaddset_fn(&sa.sa_mask, sig);  in TestSigAction()
290   sa.sa_flags = SA_ONSTACK | SA_SIGINFO;  in TestSigAction()
291   sa.sa_sigaction = no_op_sigaction;  in TestSigAction()
292   ASSERT_EQ(0, sigaction_fn(sig, &sa, nullptr));  in TestSigAction()
295   sa = {};  in TestSigAction()
296   ASSERT_EQ(0, sigaction_fn(sig, nullptr, &sa));  in TestSigAction()
297   ASSERT_TRUE(sa.sa_sigaction == no_op_sigaction);  in TestSigAction()
298   ASSERT_TRUE((void*) sa.sa_sigaction == (void*) sa.sa_handler);  in TestSigAction()
299   ASSERT_EQ(static_cast<unsigned>(SA_ONSTACK | SA_SIGINFO), sa.sa_flags & ~sa_restorer);  in TestSigAction()
301   ASSERT_EQ(bool(sa.sa_flags & sa_restorer), bool(sa.sa_restorer));  in TestSigAction()
368   struct sigaction sa = {};  in TEST()  local
369   sa.sa_handler = [](int) { sigset = GetSignalMask(); };  in TEST()
370   sa.sa_flags = SA_ONSTACK | SA_NODEFER;  in TEST()
371   sigfillset(&sa.sa_mask);  in TEST()
372   sigaction(SIGUSR1, &sa, nullptr);  in TEST()
388   struct sigaction64 sa = {};  in TEST()  local
389   sa.sa_handler = [](int) { sigset = GetSignalMask(); };  in TEST()
390   sa.sa_flags = SA_ONSTACK | SA_NODEFER;  in TEST()
391   sigfillset64(&sa.sa_mask);  in TEST()
392   sigaction64(SIGUSR1, &sa, nullptr);  in TEST()
854   struct sigaction sa;  in TEST()  local
855   ASSERT_EQ(0, sigaction(SIGALRM, nullptr, &sa));  in TEST()
856   EXPECT_EQ(SIG_IGN, sa.sa_handler);  in TEST()