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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_X64_H_ | 5 #ifndef VM_STACK_FRAME_X64_H_ |
| 6 #define VM_STACK_FRAME_X64_H_ | 6 #define VM_STACK_FRAME_X64_H_ |
| 7 | 7 |
| 8 namespace dart { | 8 namespace dart { |
| 9 | 9 |
| 10 /* X64 Dart Frame Layout | 10 /* X64 Dart Frame Layout |
| 11 | 11 |
| 12 | | <- TOS | 12 | | <- TOS |
| 13 Callee frame | ... | | 13 Callee frame | ... | |
| 14 | current ret addr | (PC of current frame) | 14 | saved RBP | (RBP of current frame) |
| 15 | saved PC | (PC of current frame) |
| 15 +--------------------+ | 16 +--------------------+ |
| 16 Current frame | ... | <- RSP of current frame | 17 Current frame | ... | <- RSP of current frame |
| 17 | first local | | 18 | first local | |
| 18 | PC marker | (current frame's code entry + offset) | 19 | PC marker | (current frame's code entry + offset) |
| 19 | caller's RBP | <- RBP of current frame | 20 | caller's RBP | <- RBP of current frame |
| 20 | caller's ret addr | (PC of caller frame) | 21 | caller's ret addr | (PC of caller frame) |
| 21 +--------------------+ | 22 +--------------------+ |
| 22 Caller frame | last parameter | <- RSP of caller frame | 23 Caller frame | last parameter | <- RSP of caller frame |
| 23 | ... | | 24 | ... | |
| 24 */ | 25 */ |
| 25 | 26 |
| 27 static const int kDartFrameFixedSize = 3; // PC marker, RBP, PC. |
| 26 static const int kSavedPcSlotFromSp = -1; | 28 static const int kSavedPcSlotFromSp = -1; |
| 27 static const int kFirstLocalSlotFromFp = -2; | 29 static const int kFirstLocalSlotFromFp = -2; |
| 28 static const int kPcMarkerSlotFromFp = -1; | 30 static const int kPcMarkerSlotFromFp = -1; |
| 29 static const int kSavedCallerFpSlotFromFp = 0; | 31 static const int kSavedCallerFpSlotFromFp = 0; |
| 30 static const int kParamEndSlotFromFp = 1; // Same slot as caller's ret addr. | 32 static const int kSavedCallerPcSlotFromFp = 1; |
| 33 static const int kParamEndSlotFromFp = 1; // One slot past last parameter. |
| 31 static const int kCallerSpSlotFromFp = 2; | 34 static const int kCallerSpSlotFromFp = 2; |
| 32 | 35 |
| 36 // No pool pointer on X64 (indicated by aliasing saved fp). |
| 37 static const int kSavedCallerPpSlotFromFp = kSavedCallerFpSlotFromFp; |
| 38 |
| 33 // Entry and exit frame layout. | 39 // Entry and exit frame layout. |
| 34 static const int kSavedContextSlotFromEntryFp = -9; | 40 static const int kSavedContextSlotFromEntryFp = -9; |
| 35 static const int kExitLinkSlotFromEntryFp = -8; | 41 static const int kExitLinkSlotFromEntryFp = -8; |
| 36 | 42 |
| 37 } // namespace dart | 43 } // namespace dart |
| 38 | 44 |
| 39 #endif // VM_STACK_FRAME_X64_H_ | 45 #endif // VM_STACK_FRAME_X64_H_ |
| 40 | 46 |
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