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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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_MIPS_H_ | 5 #ifndef VM_STACK_FRAME_MIPS_H_ |
6 #define VM_STACK_FRAME_MIPS_H_ | 6 #define VM_STACK_FRAME_MIPS_H_ |
7 | 7 |
8 namespace dart { | 8 namespace dart { |
9 | 9 |
10 /* MIPS Dart Frame Layout | 10 /* MIPS Dart Frame Layout |
(...skipping 12 matching lines...) Expand all Loading... |
23 +--------------------+ | 23 +--------------------+ |
24 Caller frame | last parameter | <- SP of caller frame | 24 Caller frame | last parameter | <- SP of caller frame |
25 | ... | | 25 | ... | |
26 | 26 |
27 T against a slot indicates it needs to be traversed during GC. | 27 T against a slot indicates it needs to be traversed during GC. |
28 */ | 28 */ |
29 | 29 |
30 static const int kDartFrameFixedSize = 4; // PP, FP, RA, PC marker. | 30 static const int kDartFrameFixedSize = 4; // PP, FP, RA, PC marker. |
31 static const int kSavedPcSlotFromSp = -2; | 31 static const int kSavedPcSlotFromSp = -2; |
32 | 32 |
33 static const int kFirstObjectSlotFromFp = -2; // Used by GC to traverse stack. | 33 static const int kFirstObjectSlotFromFp = -1; // Used by GC to traverse stack. |
34 | 34 |
35 static const int kFirstLocalSlotFromFp = -2; | 35 static const int kFirstLocalSlotFromFp = -2; |
36 static const int kSavedCallerPpSlotFromFp = -1; | 36 static const int kSavedCallerPpSlotFromFp = -1; |
37 static const int kSavedCallerFpSlotFromFp = 0; | 37 static const int kSavedCallerFpSlotFromFp = 0; |
38 static const int kSavedCallerPcSlotFromFp = 1; | 38 static const int kSavedCallerPcSlotFromFp = 1; |
39 static const int kPcMarkerSlotFromFp = 2; | 39 static const int kPcMarkerSlotFromFp = 2; |
40 static const int kParamEndSlotFromFp = 2; // One slot past last parameter. | 40 static const int kParamEndSlotFromFp = 2; // One slot past last parameter. |
41 static const int kCallerSpSlotFromFp = 3; | 41 static const int kCallerSpSlotFromFp = 3; |
42 | 42 |
43 // Entry and exit frame layout. | 43 // Entry and exit frame layout. |
44 static const int kSavedContextSlotFromEntryFp = -23; | 44 static const int kSavedContextSlotFromEntryFp = -23; |
45 static const int kExitLinkSlotFromEntryFp = -22; | 45 static const int kExitLinkSlotFromEntryFp = -22; |
46 | 46 |
47 } // namespace dart | 47 } // namespace dart |
48 | 48 |
49 #endif // VM_STACK_FRAME_MIPS_H_ | 49 #endif // VM_STACK_FRAME_MIPS_H_ |
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