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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_PPC_FRAMES_PPC_H_ | 5 #ifndef V8_PPC_FRAMES_PPC_H_ |
6 #define V8_PPC_FRAMES_PPC_H_ | 6 #define V8_PPC_FRAMES_PPC_H_ |
7 | 7 |
8 namespace v8 { | 8 namespace v8 { |
9 namespace internal { | 9 namespace internal { |
10 | 10 |
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109 | 109 |
110 class EntryFrameConstants : public AllStatic { | 110 class EntryFrameConstants : public AllStatic { |
111 public: | 111 public: |
112 static const int kCallerFPOffset = | 112 static const int kCallerFPOffset = |
113 -(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize); | 113 -(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize); |
114 }; | 114 }; |
115 | 115 |
116 | 116 |
117 class ExitFrameConstants : public AllStatic { | 117 class ExitFrameConstants : public AllStatic { |
118 public: | 118 public: |
119 static const int kFrameSize = 2 * kPointerSize; | 119 static const int kFrameSize = |
120 static const int kConstantPoolOffset = 0; // Not used. | 120 FLAG_enable_embedded_constant_pool ? 3 * kPointerSize : 2 * kPointerSize; |
| 121 |
| 122 static const int kConstantPoolOffset = |
| 123 FLAG_enable_embedded_constant_pool ? -3 * kPointerSize : 0; |
121 static const int kCodeOffset = -2 * kPointerSize; | 124 static const int kCodeOffset = -2 * kPointerSize; |
122 static const int kSPOffset = -1 * kPointerSize; | 125 static const int kSPOffset = -1 * kPointerSize; |
123 | 126 |
124 // The caller fields are below the frame pointer on the stack. | 127 // The caller fields are below the frame pointer on the stack. |
125 static const int kCallerFPOffset = 0 * kPointerSize; | 128 static const int kCallerFPOffset = 0 * kPointerSize; |
126 // The calling JS function is below FP. | 129 // The calling JS function is below FP. |
127 static const int kCallerPCOffset = 1 * kPointerSize; | 130 static const int kCallerPCOffset = 1 * kPointerSize; |
128 | 131 |
129 // FP-relative displacement of the caller's SP. It points just | 132 // FP-relative displacement of the caller's SP. It points just |
130 // below the saved PC. | 133 // below the saved PC. |
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178 inline Object* JavaScriptFrame::function_slot_object() const { | 181 inline Object* JavaScriptFrame::function_slot_object() const { |
179 const int offset = JavaScriptFrameConstants::kFunctionOffset; | 182 const int offset = JavaScriptFrameConstants::kFunctionOffset; |
180 return Memory::Object_at(fp() + offset); | 183 return Memory::Object_at(fp() + offset); |
181 } | 184 } |
182 | 185 |
183 | 186 |
184 } | 187 } |
185 } // namespace v8::internal | 188 } // namespace v8::internal |
186 | 189 |
187 #endif // V8_PPC_FRAMES_PPC_H_ | 190 #endif // V8_PPC_FRAMES_PPC_H_ |
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