24 // SIGKILL cannot have its action changed, but it can be examined.
26   struct sigaction action;  in TEST()  local
27   EXPECT_THAT(LIBC_NAMESPACE::sigaction(SIGKILL, nullptr, &action), Succeeds());  in TEST()
28   EXPECT_THAT(LIBC_NAMESPACE::sigaction(SIGKILL, &action, nullptr),  in TEST()
39   struct sigaction action;  in TEST()  local
40   EXPECT_THAT(LIBC_NAMESPACE::sigaction(SIGUSR1, nullptr, &action), Succeeds());  in TEST()
42   action.sa_handler = +[](int signal) {  in TEST()
46   EXPECT_THAT(LIBC_NAMESPACE::sigaction(SIGUSR1, &action, nullptr), Succeeds());  in TEST()
52   action.sa_handler = SIG_DFL;  in TEST()
53   EXPECT_THAT(LIBC_NAMESPACE::sigaction(SIGUSR1, &action, nullptr), Succeeds());  in TEST()
59   struct sigaction action;  in TEST()  local
60   EXPECT_THAT(LIBC_NAMESPACE::sigaction(SIGUSR1, nullptr, &action), Succeeds());  in TEST()
61   action.sa_handler = SIG_IGN;  in TEST()
62   EXPECT_THAT(LIBC_NAMESPACE::sigaction(SIGUSR1, &action, nullptr), Succeeds());  in TEST()