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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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46 1 << 7; // edi - callee function | 46 1 << 7; // edi - callee function |
47 | 47 |
48 const int kNumJSCallerSaved = 5; | 48 const int kNumJSCallerSaved = 5; |
49 | 49 |
50 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved]; | 50 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved]; |
51 | 51 |
52 | 52 |
53 // Number of registers for which space is reserved in safepoints. | 53 // Number of registers for which space is reserved in safepoints. |
54 const int kNumSafepointRegisters = 8; | 54 const int kNumSafepointRegisters = 8; |
55 | 55 |
| 56 const int kNoAlignmentPadding = 0; |
| 57 const int kAlignmentPaddingPushed = 2; |
| 58 const int kAlignmentZapValue = 0x12345678; // Not heap object tagged. |
| 59 |
56 // ---------------------------------------------------- | 60 // ---------------------------------------------------- |
57 | 61 |
58 | 62 |
59 class StackHandlerConstants : public AllStatic { | 63 class StackHandlerConstants : public AllStatic { |
60 public: | 64 public: |
61 static const int kNextOffset = 0 * kPointerSize; | 65 static const int kNextOffset = 0 * kPointerSize; |
62 static const int kCodeOffset = 1 * kPointerSize; | 66 static const int kCodeOffset = 1 * kPointerSize; |
63 static const int kStateOffset = 2 * kPointerSize; | 67 static const int kStateOffset = 2 * kPointerSize; |
64 static const int kContextOffset = 3 * kPointerSize; | 68 static const int kContextOffset = 3 * kPointerSize; |
65 static const int kFPOffset = 4 * kPointerSize; | 69 static const int kFPOffset = 4 * kPointerSize; |
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112 class JavaScriptFrameConstants : public AllStatic { | 116 class JavaScriptFrameConstants : public AllStatic { |
113 public: | 117 public: |
114 // FP-relative. | 118 // FP-relative. |
115 static const int kLocal0Offset = StandardFrameConstants::kExpressionsOffset; | 119 static const int kLocal0Offset = StandardFrameConstants::kExpressionsOffset; |
116 static const int kLastParameterOffset = +2 * kPointerSize; | 120 static const int kLastParameterOffset = +2 * kPointerSize; |
117 static const int kFunctionOffset = StandardFrameConstants::kMarkerOffset; | 121 static const int kFunctionOffset = StandardFrameConstants::kMarkerOffset; |
118 | 122 |
119 // Caller SP-relative. | 123 // Caller SP-relative. |
120 static const int kParam0Offset = -2 * kPointerSize; | 124 static const int kParam0Offset = -2 * kPointerSize; |
121 static const int kReceiverOffset = -1 * kPointerSize; | 125 static const int kReceiverOffset = -1 * kPointerSize; |
| 126 |
| 127 static const int kDynamicAlignmentStateOffset = kLocal0Offset; |
122 }; | 128 }; |
123 | 129 |
124 | 130 |
125 class ArgumentsAdaptorFrameConstants : public AllStatic { | 131 class ArgumentsAdaptorFrameConstants : public AllStatic { |
126 public: | 132 public: |
127 static const int kLengthOffset = StandardFrameConstants::kExpressionsOffset; | 133 static const int kLengthOffset = StandardFrameConstants::kExpressionsOffset; |
128 static const int kFrameSize = | 134 static const int kFrameSize = |
129 StandardFrameConstants::kFixedFrameSize + kPointerSize; | 135 StandardFrameConstants::kFixedFrameSize + kPointerSize; |
130 }; | 136 }; |
131 | 137 |
132 | 138 |
133 class InternalFrameConstants : public AllStatic { | 139 class InternalFrameConstants : public AllStatic { |
134 public: | 140 public: |
135 static const int kCodeOffset = StandardFrameConstants::kExpressionsOffset; | 141 static const int kCodeOffset = StandardFrameConstants::kExpressionsOffset; |
136 }; | 142 }; |
137 | 143 |
138 | 144 |
139 inline Object* JavaScriptFrame::function_slot_object() const { | 145 inline Object* JavaScriptFrame::function_slot_object() const { |
140 const int offset = JavaScriptFrameConstants::kFunctionOffset; | 146 const int offset = JavaScriptFrameConstants::kFunctionOffset; |
141 return Memory::Object_at(fp() + offset); | 147 return Memory::Object_at(fp() + offset); |
142 } | 148 } |
143 | 149 |
144 | 150 |
145 } } // namespace v8::internal | 151 } } // namespace v8::internal |
146 | 152 |
147 #endif // V8_IA32_FRAMES_IA32_H_ | 153 #endif // V8_IA32_FRAMES_IA32_H_ |
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