src/x64/frames-x64.h - Issue 118115: X64: JSEntry Stub

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Issue 118115: X64: JSEntry Stub (Closed)

Patch Set: Addressed review comments Created 11 years, 6 months ago

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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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34 // TODO(x64): This is a stub, mostly just a copy of the ia32 bit version.	34 // TODO(x64): This is a stub, mostly just a copy of the ia32 bit version.

35 // This will all need to change to be correct for x64.	35 // This will all need to change to be correct for x64.

36	36

37 static const int kNumRegs = 8;	37 static const int kNumRegs = 8;

38 static const RegList kJSCallerSaved = 0;	38 static const RegList kJSCallerSaved = 0;

39 static const int kNumJSCallerSaved = 5;	39 static const int kNumJSCallerSaved = 5;

40 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved];	40 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved];

41	41

42 class StackHandlerConstants : public AllStatic {	42 class StackHandlerConstants : public AllStatic {

43 public:	43 public:

44 static const int kNextOffset = -1 * kPointerSize;	44 static const int kNextOffset = 0 * kPointerSize;

45 static const int kPPOffset = -1 * kPointerSize;	45 static const int kPPOffset = 1 * kPointerSize;

46 static const int kFPOffset = -1 * kPointerSize;	46 static const int kFPOffset = 2 * kPointerSize;

47	47

48 static const int kCodeOffset = -1 * kPointerSize;	48 static const int kCodeOffset = 3 * kPointerSize;

49	49

50 static const int kStateOffset = -1 * kPointerSize;	50 static const int kStateOffset = 4 * kPointerSize;

51 static const int kPCOffset = -1 * kPointerSize;	51 static const int kPCOffset = 5 * kPointerSize;

52	52

53 static const int kAddressDisplacement = -1 * kPointerSize;	53 static const int kAddressDisplacement = -1 * kPointerSize;

54 static const int kSize = kPCOffset + kPointerSize;	54 static const int kSize = 6 * kPointerSize;

55 };	55 };

56	56

57	57

58 class EntryFrameConstants : public AllStatic {	58 class EntryFrameConstants : public AllStatic {

59 public:	59 public:

60 static const int kCallerFPOffset = -1 * kPointerSize;	60 static const int kCallerFPOffset = -1 * kPointerSize;

61	61

62 static const int kFunctionArgOffset = -1 * kPointerSize;	62 static const int kFunctionArgOffset = -1 * kPointerSize;

63 static const int kReceiverArgOffset = -1 * kPointerSize;	63 static const int kReceiverArgOffset = -1 * kPointerSize;

64 static const int kArgcOffset = -1 * kPointerSize;	64 static const int kArgcOffset = -1 * kPointerSize;

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113	113

114	114

115 inline Object* JavaScriptFrame::function_slot_object() const {	115 inline Object* JavaScriptFrame::function_slot_object() const {

116 const int offset = JavaScriptFrameConstants::kFunctionOffset;	116 const int offset = JavaScriptFrameConstants::kFunctionOffset;

117 return Memory::Object_at(fp() + offset);	117 return Memory::Object_at(fp() + offset);

118 }	118 }

119	119

120 } } // namespace v8::internal	120 } } // namespace v8::internal

121	121

122 #endif // V8_X64_FRAMES_X64_H_	122 #endif // V8_X64_FRAMES_X64_H_

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