src/hotspot/share/runtime/thread.cpp

*** 1016,1040 ****
      InterfaceSupport::check_gc_alot();
    }
  }
  #endif // ASSERT
  
  bool Thread::is_in_stack(address adr) const {
    assert(Thread::current() == this, "is_in_stack can only be called from current thread");
    address end = os::current_stack_pointer();
!   // Allow non Java threads to call this without stack_base
!   if (_stack_base == NULL) return true;
!   if (stack_base() > adr && adr >= end) return true;
! 
!   return false;
  }
  
  bool Thread::is_in_usable_stack(address adr) const {
    size_t stack_guard_size = os::uses_stack_guard_pages() ? JavaThread::stack_guard_zone_size() : 0;
    size_t usable_stack_size = _stack_size - stack_guard_size;
  
!   return ((adr < stack_base()) && (adr >= stack_base() - usable_stack_size));
  }
  
  
  // We had to move these methods here, because vm threads get into ObjectSynchronizer::enter
  // However, there is a note in JavaThread::is_lock_owned() about the VM threads not being
--- 1016,1038 ----
      InterfaceSupport::check_gc_alot();
    }
  }
  #endif // ASSERT
  
+ // Check for adr in the live portion of our stack.
  bool Thread::is_in_stack(address adr) const {
    assert(Thread::current() == this, "is_in_stack can only be called from current thread");
    address end = os::current_stack_pointer();
!   return (stack_base() > adr && adr >= end);
  }
  
+ // Check for adr in the usable portion of our stack.
  bool Thread::is_in_usable_stack(address adr) const {
    size_t stack_guard_size = os::uses_stack_guard_pages() ? JavaThread::stack_guard_zone_size() : 0;
    size_t usable_stack_size = _stack_size - stack_guard_size;
  
!   return ((stack_base() > adr) && (adr >= (stack_base() - usable_stack_size)));
  }
  
  
  // We had to move these methods here, because vm threads get into ObjectSynchronizer::enter
  // However, there is a note in JavaThread::is_lock_owned() about the VM threads not being