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1 /* |
1 /* |
2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
25 #define SHARE_GC_Z_ZADDRESS_HPP |
25 #define SHARE_GC_Z_ZADDRESS_HPP |
26 |
26 |
27 #include "memory/allocation.hpp" |
27 #include "memory/allocation.hpp" |
28 |
28 |
29 class ZAddress : public AllStatic { |
29 class ZAddress : public AllStatic { |
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30 friend class ZAddressTest; |
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31 |
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32 private: |
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33 static void set_good_mask(uintptr_t mask); |
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34 |
30 public: |
35 public: |
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36 static void initialize(); |
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37 |
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38 static void flip_to_marked(); |
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39 static void flip_to_remapped(); |
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40 |
31 static bool is_null(uintptr_t value); |
41 static bool is_null(uintptr_t value); |
32 static bool is_bad(uintptr_t value); |
42 static bool is_bad(uintptr_t value); |
33 static bool is_good(uintptr_t value); |
43 static bool is_good(uintptr_t value); |
34 static bool is_good_or_null(uintptr_t value); |
44 static bool is_good_or_null(uintptr_t value); |
35 static bool is_weak_bad(uintptr_t value); |
45 static bool is_weak_bad(uintptr_t value); |
50 static uintptr_t marked1(uintptr_t value); |
60 static uintptr_t marked1(uintptr_t value); |
51 static uintptr_t remapped(uintptr_t value); |
61 static uintptr_t remapped(uintptr_t value); |
52 static uintptr_t remapped_or_null(uintptr_t value); |
62 static uintptr_t remapped_or_null(uintptr_t value); |
53 }; |
63 }; |
54 |
64 |
55 class ZAddressMasks : public AllStatic { |
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56 friend class ZAddressTest; |
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57 |
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58 private: |
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59 static void set_good_mask(uintptr_t mask); |
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60 |
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61 public: |
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62 static void initialize(); |
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63 static void flip_to_marked(); |
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64 static void flip_to_remapped(); |
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65 }; |
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66 |
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67 #endif // SHARE_GC_Z_ZADDRESS_HPP |
65 #endif // SHARE_GC_Z_ZADDRESS_HPP |