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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 // Declares a Simulator for ARM64 instructions if we are not generating a native | 5 // Declares a Simulator for ARM64 instructions if we are not generating a native |
6 // ARM64 binary. This Simulator allows us to run and debug ARM64 code generation | 6 // ARM64 binary. This Simulator allows us to run and debug ARM64 code generation |
7 // on regular desktop machines. | 7 // on regular desktop machines. |
8 // Dart calls into generated code by "calling" the InvokeDartCode stub, | 8 // Dart calls into generated code by "calling" the InvokeDartCode stub, |
9 // which will start execution in the Simulator or forwards to the real entry | 9 // which will start execution in the Simulator or forwards to the real entry |
10 // on a ARM64 HW platform. | 10 // on a ARM64 HW platform. |
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120 }; | 120 }; |
121 static uword RedirectExternalReference(uword function, | 121 static uword RedirectExternalReference(uword function, |
122 CallKind call_kind, | 122 CallKind call_kind, |
123 int argument_count); | 123 int argument_count); |
124 | 124 |
125 static uword FunctionForRedirect(uword redirect); | 125 static uword FunctionForRedirect(uword redirect); |
126 | 126 |
127 void Longjmp(uword pc, | 127 void Longjmp(uword pc, |
128 uword sp, | 128 uword sp, |
129 uword fp, | 129 uword fp, |
| 130 uword pp, |
130 RawObject* raw_exception, | 131 RawObject* raw_exception, |
131 RawObject* raw_stacktrace, | 132 RawObject* raw_stacktrace, |
132 Thread* thread); | 133 Thread* thread); |
133 | 134 |
134 private: | 135 private: |
135 // Known bad pc value to ensure that the simulator does not execute | 136 // Known bad pc value to ensure that the simulator does not execute |
136 // without being properly setup. | 137 // without being properly setup. |
137 static const uword kBadLR = -1; | 138 static const uword kBadLR = -1; |
138 // A pc value used to signal the simulator to stop execution. Generally | 139 // A pc value used to signal the simulator to stop execution. Generally |
139 // the lr is set to this value on transition from native C code to | 140 // the lr is set to this value on transition from native C code to |
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276 } | 277 } |
277 | 278 |
278 friend class SimulatorDebugger; | 279 friend class SimulatorDebugger; |
279 friend class SimulatorSetjmpBuffer; | 280 friend class SimulatorSetjmpBuffer; |
280 DISALLOW_COPY_AND_ASSIGN(Simulator); | 281 DISALLOW_COPY_AND_ASSIGN(Simulator); |
281 }; | 282 }; |
282 | 283 |
283 } // namespace dart | 284 } // namespace dart |
284 | 285 |
285 #endif // VM_SIMULATOR_ARM64_H_ | 286 #endif // VM_SIMULATOR_ARM64_H_ |
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