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

Issue 2503653002: JumpToFrame refactor (Closed)
Patch Set: code review 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 MIPS instructions if we are not generating a native 5 // Declares a Simulator for MIPS instructions if we are not generating a native
6 // MIPS binary. This Simulator allows us to run and debug MIPS code generation 6 // MIPS binary. This Simulator allows us to run and debug MIPS 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 MIPS HW platform. 10 // on a MIPS HW platform.
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132 kLeafFloatRuntimeCall, 132 kLeafFloatRuntimeCall,
133 kBootstrapNativeCall, 133 kBootstrapNativeCall,
134 kNativeCall 134 kNativeCall
135 }; 135 };
136 static uword RedirectExternalReference(uword function, 136 static uword RedirectExternalReference(uword function,
137 CallKind call_kind, 137 CallKind call_kind,
138 int argument_count); 138 int argument_count);
139 139
140 static uword FunctionForRedirect(uword redirect); 140 static uword FunctionForRedirect(uword redirect);
141 141
142 void Longjmp(uword pc, 142 void JumpToFrame(uword pc, uword sp, uword fp, Thread* thread);
143 uword sp,
144 uword fp,
145 RawObject* raw_exception,
146 RawObject* raw_stacktrace,
147 Thread* thread);
148 143
149 private: 144 private:
150 // A pc value used to signal the simulator to stop execution. Generally 145 // A pc value used to signal the simulator to stop execution. Generally
151 // the ra is set to this value on transition from native C code to 146 // the ra is set to this value on transition from native C code to
152 // simulated execution, so that the simulator can "return" to the native 147 // simulated execution, so that the simulator can "return" to the native
153 // C code. 148 // C code.
154 static const uword kEndSimulatingPC = -1; 149 static const uword kEndSimulatingPC = -1;
155 150
156 // Special registers for the results of div, divu. 151 // Special registers for the results of div, divu.
157 int32_t hi_reg_; 152 int32_t hi_reg_;
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253 } 248 }
254 249
255 friend class SimulatorDebugger; 250 friend class SimulatorDebugger;
256 friend class SimulatorSetjmpBuffer; 251 friend class SimulatorSetjmpBuffer;
257 DISALLOW_COPY_AND_ASSIGN(Simulator); 252 DISALLOW_COPY_AND_ASSIGN(Simulator);
258 }; 253 };
259 254
260 } // namespace dart 255 } // namespace dart
261 256
262 #endif // RUNTIME_VM_SIMULATOR_MIPS_H_ 257 #endif // RUNTIME_VM_SIMULATOR_MIPS_H_
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