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Side by Side Diff: runtime/vm/simulator_arm64.h

Issue 2481873005: clang-format runtime/vm (Closed)
Patch Set: Merge 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.
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43 // The currently executing Simulator instance, which is associated to the 43 // The currently executing Simulator instance, which is associated to the
44 // current isolate 44 // current isolate
45 static Simulator* Current(); 45 static Simulator* Current();
46 46
47 // Accessors for register state. 47 // Accessors for register state.
48 // The default value for R31Type has to be R31IsSP because get_register is 48 // The default value for R31Type has to be R31IsSP because get_register is
49 // accessed from architecture independent code through SPREG without 49 // accessed from architecture independent code through SPREG without
50 // specifying the type. We also can't translate a dummy value for SPREG into 50 // specifying the type. We also can't translate a dummy value for SPREG into
51 // a real value because the architecture independent code expects SPREG to 51 // a real value because the architecture independent code expects SPREG to
52 // be a real register value. 52 // be a real register value.
53 void set_register( 53 void set_register(Instr* instr,
54 Instr* instr, Register reg, int64_t value, R31Type r31t = R31IsSP); 54 Register reg,
55 int64_t value,
56 R31Type r31t = R31IsSP);
55 int64_t get_register(Register reg, R31Type r31t = R31IsSP) const; 57 int64_t get_register(Register reg, R31Type r31t = R31IsSP) const;
56 void set_wregister(Register reg, int32_t value, R31Type r31t = R31IsSP); 58 void set_wregister(Register reg, int32_t value, R31Type r31t = R31IsSP);
57 int32_t get_wregister(Register reg, R31Type r31t = R31IsSP) const; 59 int32_t get_wregister(Register reg, R31Type r31t = R31IsSP) const;
58 60
59 int32_t get_vregisters(VRegister reg, int idx) const; 61 int32_t get_vregisters(VRegister reg, int idx) const;
60 void set_vregisters(VRegister reg, int idx, int32_t value); 62 void set_vregisters(VRegister reg, int idx, int32_t value);
61 63
62 int64_t get_vregisterd(VRegister reg, int idx) const; 64 int64_t get_vregisterd(VRegister reg, int idx) const;
63 void set_vregisterd(VRegister reg, int idx, int64_t value); 65 void set_vregisterd(VRegister reg, int idx, int64_t value);
64 66
65 void get_vregister(VRegister reg, simd_value_t* value) const; 67 void get_vregister(VRegister reg, simd_value_t* value) const;
66 void set_vregister(VRegister reg, const simd_value_t& value); 68 void set_vregister(VRegister reg, const simd_value_t& value);
67 69
68 int64_t get_sp() const { 70 int64_t get_sp() const { return get_register(SPREG); }
69 return get_register(SPREG);
70 }
71 71
72 int64_t get_pc() const; 72 int64_t get_pc() const;
73 int64_t get_last_pc() const; 73 int64_t get_last_pc() const;
74 void set_pc(int64_t pc); 74 void set_pc(int64_t pc);
75 75
76 // Accessors to the internal simulator stack base and top. 76 // Accessors to the internal simulator stack base and top.
77 uword StackBase() const { return reinterpret_cast<uword>(stack_); } 77 uword StackBase() const { return reinterpret_cast<uword>(stack_); }
78 uword StackTop() const; 78 uword StackTop() const;
79 79
80 // Accessor to the instruction counter. 80 // Accessor to the instruction counter.
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158 uint64_t icount_; 158 uint64_t icount_;
159 static int64_t flag_stop_sim_at_; 159 static int64_t flag_stop_sim_at_;
160 SimulatorSetjmpBuffer* last_setjmp_buffer_; 160 SimulatorSetjmpBuffer* last_setjmp_buffer_;
161 uword top_exit_frame_info_; 161 uword top_exit_frame_info_;
162 162
163 // Registered breakpoints. 163 // Registered breakpoints.
164 Instr* break_pc_; 164 Instr* break_pc_;
165 int64_t break_instr_; 165 int64_t break_instr_;
166 166
167 // Illegal memory access support. 167 // Illegal memory access support.
168 static bool IsIllegalAddress(uword addr) { 168 static bool IsIllegalAddress(uword addr) { return addr < 64 * 1024; }
169 return addr < 64*1024;
170 }
171 void HandleIllegalAccess(uword addr, Instr* instr); 169 void HandleIllegalAccess(uword addr, Instr* instr);
172 170
173 // Handles an unaligned memory access. 171 // Handles an unaligned memory access.
174 void UnalignedAccess(const char* msg, uword addr, Instr* instr); 172 void UnalignedAccess(const char* msg, uword addr, Instr* instr);
175 173
176 // Handles a legal instruction that the simulator does not implement. 174 // Handles a legal instruction that the simulator does not implement.
177 void UnimplementedInstruction(Instr* instr); 175 void UnimplementedInstruction(Instr* instr);
178 176
179 // Unsupported instructions use Format to print an error and stop execution. 177 // Unsupported instructions use Format to print an error and stop execution.
180 void Format(Instr* instr, const char* format); 178 void Format(Instr* instr, const char* format);
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225 // thread (CLREX). 223 // thread (CLREX).
226 static bool HasExclusiveAccessAndOpen(uword addr); 224 static bool HasExclusiveAccessAndOpen(uword addr);
227 225
228 // Helper functions to set the conditional flags in the architecture state. 226 // Helper functions to set the conditional flags in the architecture state.
229 void SetNZFlagsW(int32_t val); 227 void SetNZFlagsW(int32_t val);
230 bool CarryFromW(int32_t left, int32_t right, int32_t carry); 228 bool CarryFromW(int32_t left, int32_t right, int32_t carry);
231 bool OverflowFromW(int32_t left, int32_t right, int32_t carry); 229 bool OverflowFromW(int32_t left, int32_t right, int32_t carry);
232 230
233 void SetNZFlagsX(int64_t val); 231 void SetNZFlagsX(int64_t val);
234 bool CarryFromX(int64_t alu_out, int64_t left, int64_t right, bool addition); 232 bool CarryFromX(int64_t alu_out, int64_t left, int64_t right, bool addition);
235 bool OverflowFromX( 233 bool OverflowFromX(int64_t alu_out,
236 int64_t alu_out, int64_t left, int64_t right, bool addition); 234 int64_t left,
235 int64_t right,
236 bool addition);
237 237
238 void SetCFlag(bool val); 238 void SetCFlag(bool val);
239 void SetVFlag(bool val); 239 void SetVFlag(bool val);
240 240
241 int64_t ShiftOperand(uint8_t reg_size, 241 int64_t ShiftOperand(uint8_t reg_size,
242 int64_t value, 242 int64_t value,
243 Shift shift_type, 243 Shift shift_type,
244 uint8_t amount); 244 uint8_t amount);
245 245
246 int64_t ExtendOperand(uint8_t reg_size, 246 int64_t ExtendOperand(uint8_t reg_size,
247 int64_t value, 247 int64_t value,
248 Extend extend_type, 248 Extend extend_type,
249 uint8_t amount); 249 uint8_t amount);
250 250
251 int64_t DecodeShiftExtendOperand(Instr* instr); 251 int64_t DecodeShiftExtendOperand(Instr* instr);
252 252
253 bool ConditionallyExecute(Instr* instr); 253 bool ConditionallyExecute(Instr* instr);
254 254
255 void DoRedirectedCall(Instr* instr); 255 void DoRedirectedCall(Instr* instr);
256 256
257 // Decode instructions. 257 // Decode instructions.
258 void InstructionDecode(Instr* instr); 258 void InstructionDecode(Instr* instr);
259 #define DECODE_OP(op) \ 259 #define DECODE_OP(op) void Decode##op(Instr* instr);
260 void Decode##op(Instr* instr);
261 APPLY_OP_LIST(DECODE_OP) 260 APPLY_OP_LIST(DECODE_OP)
262 #undef DECODE_OP 261 #undef DECODE_OP
263 262
264 // Executes ARM64 instructions until the PC reaches kEndSimulatingPC. 263 // Executes ARM64 instructions until the PC reaches kEndSimulatingPC.
265 void Execute(); 264 void Execute();
266 265
267 // Returns true if tracing of executed instructions is enabled. 266 // Returns true if tracing of executed instructions is enabled.
268 bool IsTracingExecution() const; 267 bool IsTracingExecution() const;
269 268
270 // Longjmp support for exceptions. 269 // Longjmp support for exceptions.
271 SimulatorSetjmpBuffer* last_setjmp_buffer() { 270 SimulatorSetjmpBuffer* last_setjmp_buffer() { return last_setjmp_buffer_; }
272 return last_setjmp_buffer_;
273 }
274 void set_last_setjmp_buffer(SimulatorSetjmpBuffer* buffer) { 271 void set_last_setjmp_buffer(SimulatorSetjmpBuffer* buffer) {
275 last_setjmp_buffer_ = buffer; 272 last_setjmp_buffer_ = buffer;
276 } 273 }
277 274
278 friend class SimulatorDebugger; 275 friend class SimulatorDebugger;
279 friend class SimulatorSetjmpBuffer; 276 friend class SimulatorSetjmpBuffer;
280 DISALLOW_COPY_AND_ASSIGN(Simulator); 277 DISALLOW_COPY_AND_ASSIGN(Simulator);
281 }; 278 };
282 279
283 } // namespace dart 280 } // namespace dart
284 281
285 #endif // RUNTIME_VM_SIMULATOR_ARM64_H_ 282 #endif // RUNTIME_VM_SIMULATOR_ARM64_H_
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