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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 // Declares a Simulator for ARM instructions if we are not generating a native | 5 // Declares a Simulator for ARM instructions if we are not generating a native |
6 // ARM binary. This Simulator allows us to run and debug ARM code generation on | 6 // ARM binary. This Simulator allows us to run and debug ARM code generation on |
7 // regular desktop machines. | 7 // 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 ARM HW platform. | 10 // on a ARM HW platform. |
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125 }; | 125 }; |
126 static uword RedirectExternalReference(uword function, | 126 static uword RedirectExternalReference(uword function, |
127 CallKind call_kind, | 127 CallKind call_kind, |
128 int argument_count); | 128 int argument_count); |
129 | 129 |
130 static uword FunctionForRedirect(uword redirect); | 130 static uword FunctionForRedirect(uword redirect); |
131 | 131 |
132 void Longjmp(uword pc, | 132 void Longjmp(uword pc, |
133 uword sp, | 133 uword sp, |
134 uword fp, | 134 uword fp, |
135 uword pp, | |
136 RawObject* raw_exception, | 135 RawObject* raw_exception, |
137 RawObject* raw_stacktrace, | 136 RawObject* raw_stacktrace, |
138 Thread* thread); | 137 Thread* thread); |
139 | 138 |
140 private: | 139 private: |
141 // Known bad pc value to ensure that the simulator does not execute | 140 // Known bad pc value to ensure that the simulator does not execute |
142 // without being properly setup. | 141 // without being properly setup. |
143 static const uword kBadLR = -1; | 142 static const uword kBadLR = -1; |
144 // A pc value used to signal the simulator to stop execution. Generally | 143 // A pc value used to signal the simulator to stop execution. Generally |
145 // the lr is set to this value on transition from native C code to | 144 // the lr is set to this value on transition from native C code to |
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282 } | 281 } |
283 | 282 |
284 friend class SimulatorDebugger; | 283 friend class SimulatorDebugger; |
285 friend class SimulatorSetjmpBuffer; | 284 friend class SimulatorSetjmpBuffer; |
286 DISALLOW_COPY_AND_ASSIGN(Simulator); | 285 DISALLOW_COPY_AND_ASSIGN(Simulator); |
287 }; | 286 }; |
288 | 287 |
289 } // namespace dart | 288 } // namespace dart |
290 | 289 |
291 #endif // VM_SIMULATOR_ARM_H_ | 290 #endif // VM_SIMULATOR_ARM_H_ |
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