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Side by Side Diff: runtime/vm/simulator_arm.h

Issue 2506503002: Revert "Revert "JumpToFrame refactor"" + Fix (Closed)
Patch Set: new client Created 4 years, 1 month ago
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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.
(...skipping 109 matching lines...) Expand 10 before | Expand all | Expand 10 after
120 kLeafFloatRuntimeCall, 120 kLeafFloatRuntimeCall,
121 kBootstrapNativeCall, 121 kBootstrapNativeCall,
122 kNativeCall 122 kNativeCall
123 }; 123 };
124 static uword RedirectExternalReference(uword function, 124 static uword RedirectExternalReference(uword function,
125 CallKind call_kind, 125 CallKind call_kind,
126 int argument_count); 126 int argument_count);
127 127
128 static uword FunctionForRedirect(uword redirect); 128 static uword FunctionForRedirect(uword redirect);
129 129
130 void Longjmp(uword pc, 130 void JumpToFrame(uword pc, uword sp, uword fp, Thread* thread);
131 uword sp,
132 uword fp,
133 RawObject* raw_exception,
134 RawObject* raw_stacktrace,
135 Thread* thread);
136 131
137 private: 132 private:
138 // Known bad pc value to ensure that the simulator does not execute 133 // Known bad pc value to ensure that the simulator does not execute
139 // without being properly setup. 134 // without being properly setup.
140 static const uword kBadLR = -1; 135 static const uword kBadLR = -1;
141 // A pc value used to signal the simulator to stop execution. Generally 136 // A pc value used to signal the simulator to stop execution. Generally
142 // the lr is set to this value on transition from native C code to 137 // the lr is set to this value on transition from native C code to
143 // simulated execution, so that the simulator can "return" to the native 138 // simulated execution, so that the simulator can "return" to the native
144 // C code. 139 // C code.
145 static const uword kEndSimulatingPC = -2; 140 static const uword kEndSimulatingPC = -2;
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275 } 270 }
276 271
277 friend class SimulatorDebugger; 272 friend class SimulatorDebugger;
278 friend class SimulatorSetjmpBuffer; 273 friend class SimulatorSetjmpBuffer;
279 DISALLOW_COPY_AND_ASSIGN(Simulator); 274 DISALLOW_COPY_AND_ASSIGN(Simulator);
280 }; 275 };
281 276
282 } // namespace dart 277 } // namespace dart
283 278
284 #endif // RUNTIME_VM_SIMULATOR_ARM_H_ 279 #endif // RUNTIME_VM_SIMULATOR_ARM_H_
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