SIG_DFL 143 usr/bin/sh/sh.c signal(SIGINT, SIG_DFL); SIG_DFL 144 usr/bin/sh/sh.c signal(SIGQUIT, SIG_DFL); SIG_DFL 145 usr/bin/sh/sh.c signal(SIGTERM, SIG_DFL); SIG_DFL 56 usr/lib/libc/stdlib/abort.c (void)signal(SIGABRT, SIG_DFL); SIG_DFL 81 usr/lib/posix/signal/__exception.c if (action.sa_handler == SIG_DFL) { SIG_DFL 169 usr/lib/posix/signal/__exception.c __sig_act[i].sa_handler = SIG_DFL; SIG_DFL 63 usr/lib/posix/signal/sigaction.c (sa->sa_handler == SIG_DFL && signum == SIGCHLD)) SIG_DFL 48 usr/lib/posix/signal/signal.c if (handler != SIG_IGN && handler != SIG_DFL) SIG_DFL 81 usr/sbin/init/init.c signal(SIGHUP, SIG_DFL); SIG_DFL 82 usr/sbin/init/init.c signal(SIGINT, SIG_DFL); SIG_DFL 83 usr/sbin/init/init.c signal(SIGALRM, SIG_DFL);