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Issue 8462010: Add a level of indirection to exception handler addresses. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Incorporate review changes. Created 9 years, 1 month ago
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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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43 43
44 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved]; 44 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved];
45 45
46 // Number of registers for which space is reserved in safepoints. 46 // Number of registers for which space is reserved in safepoints.
47 static const int kNumSafepointRegisters = 16; 47 static const int kNumSafepointRegisters = 16;
48 48
49 // ---------------------------------------------------- 49 // ----------------------------------------------------
50 50
51 class StackHandlerConstants : public AllStatic { 51 class StackHandlerConstants : public AllStatic {
52 public: 52 public:
53 static const int kNextOffset = 0 * kPointerSize; 53 static const int kNextOffset = 0 * kPointerSize;
54 static const int kContextOffset = 1 * kPointerSize; 54 static const int kCodeOffset = 1 * kPointerSize;
55 static const int kFPOffset = 2 * kPointerSize; 55 static const int kStateOffset = 2 * kPointerSize;
56 static const int kStateOffset = 3 * kPointerSize; 56 static const int kContextOffset = 3 * kPointerSize;
57 static const int kPCOffset = 4 * kPointerSize; 57 static const int kFPOffset = 4 * kPointerSize;
58 58
59 static const int kSize = kPCOffset + kPointerSize; 59 static const int kSize = kFPOffset + kPointerSize;
60 }; 60 };
61 61
62 62
63 class EntryFrameConstants : public AllStatic { 63 class EntryFrameConstants : public AllStatic {
64 public: 64 public:
65 #ifdef _WIN64 65 #ifdef _WIN64
66 static const int kCallerFPOffset = -10 * kPointerSize; 66 static const int kCallerFPOffset = -10 * kPointerSize;
67 #else 67 #else
68 static const int kCallerFPOffset = -8 * kPointerSize; 68 static const int kCallerFPOffset = -8 * kPointerSize;
69 #endif 69 #endif
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122 122
123 123
124 inline Object* JavaScriptFrame::function_slot_object() const { 124 inline Object* JavaScriptFrame::function_slot_object() const {
125 const int offset = JavaScriptFrameConstants::kFunctionOffset; 125 const int offset = JavaScriptFrameConstants::kFunctionOffset;
126 return Memory::Object_at(fp() + offset); 126 return Memory::Object_at(fp() + offset);
127 } 127 }
128 128
129 } } // namespace v8::internal 129 } } // namespace v8::internal
130 130
131 #endif // V8_X64_FRAMES_X64_H_ 131 #endif // V8_X64_FRAMES_X64_H_
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