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1 /* |
1 /* |
2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. |
3 * Copyright 2008, 2009, 2010 Red Hat, Inc. |
3 * Copyright 2008, 2009, 2010 Red Hat, Inc. |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
5 * |
5 * |
6 * This code is free software; you can redistribute it and/or modify it |
6 * This code is free software; you can redistribute it and/or modify it |
7 * under the terms of the GNU General Public License version 2 only, as |
7 * under the terms of the GNU General Public License version 2 only, as |
36 |
36 |
37 private: |
37 private: |
38 int _shadow_pages_size; // how much ABI stack must we keep free? |
38 int _shadow_pages_size; // how much ABI stack must we keep free? |
39 |
39 |
40 public: |
40 public: |
41 ZeroStack() |
41 ZeroStack(); |
42 : _base(NULL), _top(NULL), _sp(NULL) { |
|
43 _shadow_pages_size = JavaThread::stack_shadow_zone_size(); |
|
44 } |
|
45 |
42 |
46 bool needs_setup() const { |
43 bool needs_setup() const { |
47 return _base == NULL; |
44 return _base == NULL; |
48 } |
45 } |
49 |
46 |