src/share/vm/runtime/thread.cpp

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 2483,2493 ****
      SR_lock()->notify_all();
    }
  }
  
  void JavaThread::create_stack_guard_pages() {
!   if (! os::uses_stack_guard_pages() || _stack_guard_state != stack_guard_unused) return;
    address low_addr = stack_base() - stack_size();
    size_t len = (StackYellowPages + StackRedPages) * os::vm_page_size();
  
    int allocate = os::allocate_stack_guard_pages();
    // warning("Guarding at " PTR_FORMAT " for len " SIZE_FORMAT "\n", low_addr, len);
--- 2483,2501 ----
      SR_lock()->notify_all();
    }
  }
  
  void JavaThread::create_stack_guard_pages() {
!   if (!os::uses_stack_guard_pages() ||
!       _stack_guard_state != stack_guard_unused ||
!       (DisablePrimordialThreadGuardPages && os::is_primordial_thread())) {
!       if (TraceThreadEvents) {
!         tty->print_cr("Stack guard page creation for thread "
!                       UINTX_FORMAT " disabled", os::current_thread_id());
!       }
!     return;
!   }
    address low_addr = stack_base() - stack_size();
    size_t len = (StackYellowPages + StackRedPages) * os::vm_page_size();
  
    int allocate = os::allocate_stack_guard_pages();
    // warning("Guarding at " PTR_FORMAT " for len " SIZE_FORMAT "\n", low_addr, len);