Function ap_fatal_signal_setup

server/mpm_unix.c:1044–1110

}

AP_DECLARE(apr_status_t) ap_fatal_signal_setup(server_rec *s,
                                               apr_pool_t *in_pconf)
{
#ifndef NO_USE_SIGACTION
    struct sigaction sa;

    memset(&sa, 0, sizeof sa);
    sigemptyset(&sa.sa_mask);

#if defined(SA_ONESHOT)
    sa.sa_flags = SA_ONESHOT;
#elif defined(SA_RESETHAND)
    sa.sa_flags = SA_RESETHAND;
#endif

    sa.sa_handler = sig_coredump;
    if (sigaction(SIGSEGV, &sa, NULL) < 0)
        ap_log_error(APLOG_MARK, APLOG_WARNING, errno, s, APLOGNO(00061) "sigaction(SIGSEGV)");
#ifdef SIGBUS
    if (sigaction(SIGBUS, &sa, NULL) < 0)
        ap_log_error(APLOG_MARK, APLOG_WARNING, errno, s, APLOGNO(00062) "sigaction(SIGBUS)");
#endif
#ifdef SIGABORT
    if (sigaction(SIGABORT, &sa, NULL) < 0)
        ap_log_error(APLOG_MARK, APLOG_WARNING, errno, s, APLOGNO(00063) "sigaction(SIGABORT)");
#endif
#ifdef SIGABRT
    if (sigaction(SIGABRT, &sa, NULL) < 0)
        ap_log_error(APLOG_MARK, APLOG_WARNING, errno, s, APLOGNO(00064) "sigaction(SIGABRT)");
#endif
#ifdef SIGILL
    if (sigaction(SIGILL, &sa, NULL) < 0)
        ap_log_error(APLOG_MARK, APLOG_WARNING, errno, s, APLOGNO(00065) "sigaction(SIGILL)");
#endif
#ifdef SIGFPE
    if (sigaction(SIGFPE, &sa, NULL) < 0)
        ap_log_error(APLOG_MARK, APLOG_WARNING, errno, s, APLOGNO(00066) "sigaction(SIGFPE)");
#endif

#else /* NO_USE_SIGACTION */

    apr_signal(SIGSEGV, sig_coredump);
#ifdef SIGBUS
    apr_signal(SIGBUS, sig_coredump);
#endif /* SIGBUS */
#ifdef SIGABORT
    apr_signal(SIGABORT, sig_coredump);
#endif /* SIGABORT */
#ifdef SIGABRT
    apr_signal(SIGABRT, sig_coredump);
#endif /* SIGABRT */
#ifdef SIGILL
    apr_signal(SIGILL, sig_coredump);
#endif /* SIGILL */
#ifdef SIGFPE
    apr_signal(SIGFPE, sig_coredump);
#endif /* SIGFPE */