sa.sa_flags = SA_SIGINFO | SA_NODEFER;
sa.sa_sigaction = sigaction_nodefer_test_handler;
sigemptyset(&sa.sa_mask);
sigaddset(&sa.sa_mask, SIGABRT);
sa.sa_flags = SA_SIGINFO | SA_NODEFER;
sa.sa_sigaction = sigaction_nodefer_test_handler;
sigemptyset(&sa.sa_mask);
sigaddset(&sa.sa_mask, SIGABRT);