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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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38 1 << 2 | // rdx | 38 1 << 2 | // rdx |
39 1 << 3 | // rbx - used as a caller-saved register in JavaScript code | 39 1 << 3 | // rbx - used as a caller-saved register in JavaScript code |
40 1 << 7; // rdi - callee function | 40 1 << 7; // rdi - callee function |
41 | 41 |
42 static const int kNumJSCallerSaved = 5; | 42 static const int kNumJSCallerSaved = 5; |
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 // TODO(x64): This should not be 0. | 47 // TODO(x64): This should not be 0. |
48 static const int kNumSafepointRegisters = 0; | 48 static const int kNumSafepointRegisters = 8; |
49 | 49 |
50 // ---------------------------------------------------- | 50 // ---------------------------------------------------- |
51 | 51 |
52 class StackHandlerConstants : public AllStatic { | 52 class StackHandlerConstants : public AllStatic { |
53 public: | 53 public: |
54 static const int kNextOffset = 0 * kPointerSize; | 54 static const int kNextOffset = 0 * kPointerSize; |
55 static const int kFPOffset = 1 * kPointerSize; | 55 static const int kFPOffset = 1 * kPointerSize; |
56 static const int kStateOffset = 2 * kPointerSize; | 56 static const int kStateOffset = 2 * kPointerSize; |
57 static const int kPCOffset = 3 * kPointerSize; | 57 static const int kPCOffset = 3 * kPointerSize; |
58 | 58 |
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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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