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Side by Side Diff: runtime/vm/simulator_arm64.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) 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.
(...skipping 106 matching lines...) Expand 10 before | Expand all | Expand 10 after
117 kLeafFloatRuntimeCall, 117 kLeafFloatRuntimeCall,
118 kBootstrapNativeCall, 118 kBootstrapNativeCall,
119 kNativeCall 119 kNativeCall
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 JumpToFrame(uword pc, uword sp, uword fp, Thread* thread);
128 uword sp,
129 uword fp,
130 RawObject* raw_exception,
131 RawObject* raw_stacktrace,
132 Thread* thread);
133 128
134 private: 129 private:
135 // Known bad pc value to ensure that the simulator does not execute 130 // Known bad pc value to ensure that the simulator does not execute
136 // without being properly setup. 131 // without being properly setup.
137 static const uword kBadLR = -1; 132 static const uword kBadLR = -1;
138 // A pc value used to signal the simulator to stop execution. Generally 133 // 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 134 // the lr is set to this value on transition from native C code to
140 // simulated execution, so that the simulator can "return" to the native 135 // simulated execution, so that the simulator can "return" to the native
141 // C code. 136 // C code.
142 static const uword kEndSimulatingPC = -2; 137 static const uword kEndSimulatingPC = -2;
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273 } 268 }
274 269
275 friend class SimulatorDebugger; 270 friend class SimulatorDebugger;
276 friend class SimulatorSetjmpBuffer; 271 friend class SimulatorSetjmpBuffer;
277 DISALLOW_COPY_AND_ASSIGN(Simulator); 272 DISALLOW_COPY_AND_ASSIGN(Simulator);
278 }; 273 };
279 274
280 } // namespace dart 275 } // namespace dart
281 276
282 #endif // RUNTIME_VM_SIMULATOR_ARM64_H_ 277 #endif // RUNTIME_VM_SIMULATOR_ARM64_H_
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