OLD | NEW |
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 |
OLD | NEW |