sa_handler 81 usr/lib/posix/signal/__exception.c if (action.sa_handler == SIG_DFL) { sa_handler 96 usr/lib/posix/signal/__exception.c } else if (action.sa_handler != SIG_IGN) { sa_handler 104 usr/lib/posix/signal/__exception.c action.sa_handler(sig); sa_handler 120 usr/lib/posix/signal/__exception.c if (action.sa_handler != SIG_IGN) sa_handler 141 usr/lib/posix/signal/__exception.c if (__sig_act[excpt].sa_handler != SIG_IGN) sa_handler 169 usr/lib/posix/signal/__exception.c __sig_act[i].sa_handler = SIG_DFL; sa_handler 62 usr/lib/posix/signal/sigaction.c if (sa->sa_handler == SIG_IGN || sa_handler 63 usr/lib/posix/signal/sigaction.c (sa->sa_handler == SIG_DFL && signum == SIGCHLD)) sa_handler 45 usr/lib/posix/signal/signal.c act.sa_handler = handler; sa_handler 54 usr/lib/posix/signal/signal.c return oact.sa_handler;