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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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27 | 27 |
28 #ifndef V8_IA32_FRAMES_IA32_H_ | 28 #ifndef V8_IA32_FRAMES_IA32_H_ |
29 #define V8_IA32_FRAMES_IA32_H_ | 29 #define V8_IA32_FRAMES_IA32_H_ |
30 | 30 |
31 namespace v8 { | 31 namespace v8 { |
32 namespace internal { | 32 namespace internal { |
33 | 33 |
34 | 34 |
35 // Register lists | 35 // Register lists |
36 // Note that the bit values must match those used in actual instruction encoding | 36 // Note that the bit values must match those used in actual instruction encoding |
37 static const int kNumRegs = 8; | 37 const int kNumRegs = 8; |
38 | 38 |
39 | 39 |
40 // Caller-saved registers | 40 // Caller-saved registers |
41 static const RegList kJSCallerSaved = | 41 const RegList kJSCallerSaved = |
42 1 << 0 | // eax | 42 1 << 0 | // eax |
43 1 << 1 | // ecx | 43 1 << 1 | // ecx |
44 1 << 2 | // edx | 44 1 << 2 | // edx |
45 1 << 3 | // ebx - used as a caller-saved register in JavaScript code | 45 1 << 3 | // ebx - used as a caller-saved register in JavaScript code |
46 1 << 7; // edi - callee function | 46 1 << 7; // edi - callee function |
47 | 47 |
48 static 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 static const int kNumSafepointRegisters = 8; | 54 const int kNumSafepointRegisters = 8; |
55 | 55 |
56 // ---------------------------------------------------- | 56 // ---------------------------------------------------- |
57 | 57 |
58 | 58 |
59 class StackHandlerConstants : public AllStatic { | 59 class StackHandlerConstants : public AllStatic { |
60 public: | 60 public: |
61 static const int kNextOffset = 0 * kPointerSize; | 61 static const int kNextOffset = 0 * kPointerSize; |
62 static const int kCodeOffset = 1 * kPointerSize; | 62 static const int kCodeOffset = 1 * kPointerSize; |
63 static const int kStateOffset = 2 * kPointerSize; | 63 static const int kStateOffset = 2 * kPointerSize; |
64 static const int kContextOffset = 3 * kPointerSize; | 64 static const int kContextOffset = 3 * kPointerSize; |
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134 | 134 |
135 inline Object* JavaScriptFrame::function_slot_object() const { | 135 inline Object* JavaScriptFrame::function_slot_object() const { |
136 const int offset = JavaScriptFrameConstants::kFunctionOffset; | 136 const int offset = JavaScriptFrameConstants::kFunctionOffset; |
137 return Memory::Object_at(fp() + offset); | 137 return Memory::Object_at(fp() + offset); |
138 } | 138 } |
139 | 139 |
140 | 140 |
141 } } // namespace v8::internal | 141 } } // namespace v8::internal |
142 | 142 |
143 #endif // V8_IA32_FRAMES_IA32_H_ | 143 #endif // V8_IA32_FRAMES_IA32_H_ |
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