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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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77 | 77 |
78 static const int kInnerPointerToCodeCacheSize = 1024; | 78 static const int kInnerPointerToCodeCacheSize = 1024; |
79 InnerPointerToCodeCacheEntry cache_[kInnerPointerToCodeCacheSize]; | 79 InnerPointerToCodeCacheEntry cache_[kInnerPointerToCodeCacheSize]; |
80 | 80 |
81 DISALLOW_COPY_AND_ASSIGN(InnerPointerToCodeCache); | 81 DISALLOW_COPY_AND_ASSIGN(InnerPointerToCodeCache); |
82 }; | 82 }; |
83 | 83 |
84 | 84 |
85 class StackHandler BASE_EMBEDDED { | 85 class StackHandler BASE_EMBEDDED { |
86 public: | 86 public: |
87 enum Kind { | 87 enum State { |
88 ENTRY, | 88 ENTRY, |
89 TRY_CATCH, | 89 TRY_CATCH, |
90 TRY_FINALLY | 90 TRY_FINALLY |
91 }; | 91 }; |
92 | 92 |
93 static const int kKindWidth = 2; | |
94 static const int kOffsetWidth = 32 - kKindWidth; | |
95 class KindField: public BitField<StackHandler::Kind, 0, kKindWidth> {}; | |
96 class OffsetField: public BitField<unsigned, kKindWidth, kOffsetWidth> {}; | |
97 | |
98 // Get the address of this stack handler. | 93 // Get the address of this stack handler. |
99 inline Address address() const; | 94 inline Address address() const; |
100 | 95 |
101 // Get the next stack handler in the chain. | 96 // Get the next stack handler in the chain. |
102 inline StackHandler* next() const; | 97 inline StackHandler* next() const; |
103 | 98 |
104 // Tells whether the given address is inside this handler. | 99 // Tells whether the given address is inside this handler. |
105 inline bool includes(Address address) const; | 100 inline bool includes(Address address) const; |
106 | 101 |
107 // Garbage collection support. | 102 // Garbage collection support. |
108 inline void Iterate(ObjectVisitor* v, Code* holder) const; | 103 inline void Iterate(ObjectVisitor* v, Code* holder) const; |
109 | 104 |
110 // Conversion support. | 105 // Conversion support. |
111 static inline StackHandler* FromAddress(Address address); | 106 static inline StackHandler* FromAddress(Address address); |
112 | 107 |
113 // Testers | 108 // Testers |
114 inline bool is_entry() const; | 109 inline bool is_entry() const; |
115 inline bool is_try_catch() const; | 110 inline bool is_try_catch() const; |
116 inline bool is_try_finally() const; | 111 inline bool is_try_finally() const; |
117 | 112 |
118 private: | 113 private: |
119 // Accessors. | 114 // Accessors. |
120 inline Kind kind() const; | 115 inline State state() const; |
121 | 116 |
122 inline Object** context_address() const; | 117 inline Object** context_address() const; |
123 inline Object** code_address() const; | 118 inline Address* pc_address() const; |
124 | 119 |
125 DISALLOW_IMPLICIT_CONSTRUCTORS(StackHandler); | 120 DISALLOW_IMPLICIT_CONSTRUCTORS(StackHandler); |
126 }; | 121 }; |
127 | 122 |
128 | 123 |
129 #define STACK_FRAME_TYPE_LIST(V) \ | 124 #define STACK_FRAME_TYPE_LIST(V) \ |
130 V(ENTRY, EntryFrame) \ | 125 V(ENTRY, EntryFrame) \ |
131 V(ENTRY_CONSTRUCT, EntryConstructFrame) \ | 126 V(ENTRY_CONSTRUCT, EntryConstructFrame) \ |
132 V(EXIT, ExitFrame) \ | 127 V(EXIT, ExitFrame) \ |
133 V(JAVA_SCRIPT, JavaScriptFrame) \ | 128 V(JAVA_SCRIPT, JavaScriptFrame) \ |
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874 }; | 869 }; |
875 | 870 |
876 | 871 |
877 // Reads all frames on the current stack and copies them into the current | 872 // Reads all frames on the current stack and copies them into the current |
878 // zone memory. | 873 // zone memory. |
879 Vector<StackFrame*> CreateStackMap(); | 874 Vector<StackFrame*> CreateStackMap(); |
880 | 875 |
881 } } // namespace v8::internal | 876 } } // namespace v8::internal |
882 | 877 |
883 #endif // V8_FRAMES_H_ | 878 #endif // V8_FRAMES_H_ |
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