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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_STACK_FRAME_ARM64_H_ | 5 #ifndef VM_STACK_FRAME_ARM64_H_ |
6 #define VM_STACK_FRAME_ARM64_H_ | 6 #define VM_STACK_FRAME_ARM64_H_ |
7 | 7 |
8 namespace dart { | 8 namespace dart { |
9 | 9 |
10 /* ARM64 Dart Frame Layout | 10 /* ARM64 Dart Frame Layout |
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28 T against a slot indicates it needs to be traversed during GC. | 28 T against a slot indicates it needs to be traversed during GC. |
29 */ | 29 */ |
30 | 30 |
31 static const int kDartFrameFixedSize = 4; // PP, FP, LR, PC marker. | 31 static const int kDartFrameFixedSize = 4; // PP, FP, LR, PC marker. |
32 static const int kSavedPcSlotFromSp = -1; | 32 static const int kSavedPcSlotFromSp = -1; |
33 | 33 |
34 static const int kFirstObjectSlotFromFp = -2; // Used by GC to traverse stack. | 34 static const int kFirstObjectSlotFromFp = -2; // Used by GC to traverse stack. |
35 | 35 |
36 static const int kFirstLocalSlotFromFp = -3; | 36 static const int kFirstLocalSlotFromFp = -3; |
37 static const int kSavedCallerPpSlotFromFp = -2; | 37 static const int kSavedCallerPpSlotFromFp = -2; |
| 38 static const int kPcMarkerSlotFromFp = -1; |
38 static const int kSavedCallerFpSlotFromFp = 0; | 39 static const int kSavedCallerFpSlotFromFp = 0; |
39 static const int kSavedCallerPcSlotFromFp = 1; | 40 static const int kSavedCallerPcSlotFromFp = 1; |
40 static const int kPcMarkerSlotFromFp = -1; | 41 |
41 static const int kParamEndSlotFromFp = 1; // One slot past last parameter. | 42 static const int kParamEndSlotFromFp = 1; // One slot past last parameter. |
42 static const int kCallerSpSlotFromFp = 2; | 43 static const int kCallerSpSlotFromFp = 2; |
| 44 static const int kSavedAboveReturnAddress = 3; // Saved above return address. |
43 | 45 |
44 // Entry and exit frame layout. | 46 // Entry and exit frame layout. |
45 static const int kSavedContextSlotFromEntryFp = -14; | 47 static const int kSavedContextSlotFromEntryFp = -14; |
46 static const int kExitLinkSlotFromEntryFp = -13; | 48 static const int kExitLinkSlotFromEntryFp = -13; |
47 static const int kSavedVMTagSlotFromEntryFp = -12; | 49 static const int kSavedVMTagSlotFromEntryFp = -12; |
48 | 50 |
49 } // namespace dart | 51 } // namespace dart |
50 | 52 |
51 #endif // VM_STACK_FRAME_ARM64_H_ | 53 #endif // VM_STACK_FRAME_ARM64_H_ |
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