src/hotspot/os/aix/os_aix.cpp

*** 620,641 ****
  // signal support
  
  debug_only(static bool signal_sets_initialized = false);
  static sigset_t unblocked_sigs, vm_sigs;
  
- bool os::Aix::is_sig_ignored(int sig) {
-   struct sigaction oact;
-   sigaction(sig, (struct sigaction*)NULL, &oact);
-   void* ohlr = oact.sa_sigaction ? CAST_FROM_FN_PTR(void*, oact.sa_sigaction)
-     : CAST_FROM_FN_PTR(void*, oact.sa_handler);
-   if (ohlr == CAST_FROM_FN_PTR(void*, SIG_IGN)) {
-     return true;
-   } else {
-     return false;
-   }
- }
- 
  void os::Aix::signal_sets_init() {
    // Should also have an assertion stating we are still single-threaded.
    assert(!signal_sets_initialized, "Already initialized");
    // Fill in signals that are necessarily unblocked for all threads in
    // the VM. Currently, we unblock the following signals:
--- 620,629 ----
*** 657,673 ****
    sigaddset(&unblocked_sigs, SIGFPE);
    sigaddset(&unblocked_sigs, SIGTRAP);
    sigaddset(&unblocked_sigs, SR_signum);
  
    if (!ReduceSignalUsage) {
!    if (!os::Aix::is_sig_ignored(SHUTDOWN1_SIGNAL)) {
       sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL);
     }
!    if (!os::Aix::is_sig_ignored(SHUTDOWN2_SIGNAL)) {
       sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL);
     }
!    if (!os::Aix::is_sig_ignored(SHUTDOWN3_SIGNAL)) {
       sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL);
     }
    }
    // Fill in signals that are blocked by all but the VM thread.
    sigemptyset(&vm_sigs);
--- 645,661 ----
    sigaddset(&unblocked_sigs, SIGFPE);
    sigaddset(&unblocked_sigs, SIGTRAP);
    sigaddset(&unblocked_sigs, SR_signum);
  
    if (!ReduceSignalUsage) {
!    if (!os::Posix::is_sig_ignored(SHUTDOWN1_SIGNAL)) {
       sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL);
     }
!    if (!os::Posix::is_sig_ignored(SHUTDOWN2_SIGNAL)) {
       sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL);
     }
!    if (!os::Posix::is_sig_ignored(SHUTDOWN3_SIGNAL)) {
       sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL);
     }
    }
    // Fill in signals that are blocked by all but the VM thread.
    sigemptyset(&vm_sigs);