Merge "Force call the fallback handler."

    abort_message = g_callbacks.get_abort_message();

  }

  if (prctl(PR_GET_NO_NEW_PRIVS, 0, 0, 0, 0) == 1) {

  // If sival_int is ~0, it means that the fallback handler has been called

  // once before and this function is being called again to dump the stack

  // of a specific thread. It is possible that the prctl call might return 1,

  // then return 0 in subsequent calls, so check the sival_int to determine if

  // the fallback handler should be called first.

  if (info->si_value.sival_int == ~0 || prctl(PR_GET_NO_NEW_PRIVS, 0, 0, 0, 0) == 1) {

    // This check might be racy if another thread sets NO_NEW_PRIVS, but this should be unlikely,

    // you can only set NO_NEW_PRIVS to 1, and the effect should be at worst a single missing

    // ANR trace.