sa_sigaction
sa.sa_sigaction = sigfpe;
sa.sa_sigaction = sigfpe;
sa.sa_sigaction = sigfpe;
sa.sa_sigaction = sigfpe;
sa.sa_sigaction = sigfpe;
act.sa_sigaction = act_handler;
act.sa_sigaction = act_handler;
act.sa_sigaction = act_handler;
sa.sa_sigaction = handler;
sa.sa_sigaction = handler;
sa.sa_sigaction = handler;
sa.sa_sigaction = &sigsegv;
sa.sa_sigaction = &sigill;
sa.sa_sigaction = handler;
sa.sa_sigaction = ill_catcher;
sa.sa_sigaction = handler;
sa.sa_sigaction = &sigsegv;
sa.sa_sigaction = &sigalarm;
.sa_sigaction = sigsegv,
sa.sa_sigaction = handler;
sa.sa_sigaction = fpecatch;
printf("sigaction=%p", (void *)sa->sa_sigaction);