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Issue 2864032: [Isolates] Statics 7: ExternalReference*/Simulator/dtoa... (Closed) Base URL: http://v8.googlecode.com/svn/branches/experimental/isolates/
Patch Set: rebase Created 10 years, 5 months ago
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1 // Copyright 2009 the V8 project authors. All rights reserved. 1 // Copyright 2009 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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67 entry(p0, p1, p2, p3, p4, p5, p6) 67 entry(p0, p1, p2, p3, p4, p5, p6)
68 68
69 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ 69 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \
70 reinterpret_cast<TryCatch*>(try_catch_address) 70 reinterpret_cast<TryCatch*>(try_catch_address)
71 71
72 72
73 #else // defined(__arm__) 73 #else // defined(__arm__)
74 74
75 // When running with the simulator transition into simulated execution at this 75 // When running with the simulator transition into simulated execution at this
76 // point. 76 // point.
77 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ 77 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
78 reinterpret_cast<Object*>( \ 78 reinterpret_cast<Object*>( \
79 assembler::arm::Simulator::current()->Call(FUNCTION_ADDR(entry), 5, \ 79 assembler::arm::Simulator::current(Isolate::Current())-> \
80 p0, p1, p2, p3, p4)) 80 Call(FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4))
81 81
82 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6) \ 82 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6) \
83 assembler::arm::Simulator::current()->Call( \ 83 assembler::arm::Simulator::current(Isolate::Current())->Call( \
84 FUNCTION_ADDR(entry), 7, p0, p1, p2, p3, p4, p5, p6) 84 FUNCTION_ADDR(entry), 7, p0, p1, p2, p3, p4, p5, p6)
85 85
86 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ 86 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \
87 try_catch_address == NULL ? \ 87 try_catch_address == NULL ? \
88 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address)) 88 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address))
89 89
90 90
91 #include "constants-arm.h" 91 #include "constants-arm.h"
92 #include "hashmap.h" 92 #include "hashmap.h"
93 93
94 94
95 namespace assembler { 95 namespace assembler {
96 namespace arm { 96 namespace arm {
97 97
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145 d0 = 0, d1, d2, d3, d4, d5, d6, d7, 145 d0 = 0, d1, d2, d3, d4, d5, d6, d7,
146 d8, d9, d10, d11, d12, d13, d14, d15, 146 d8, d9, d10, d11, d12, d13, d14, d15,
147 num_d_registers = 16 147 num_d_registers = 16
148 }; 148 };
149 149
150 Simulator(); 150 Simulator();
151 ~Simulator(); 151 ~Simulator();
152 152
153 // The currently executing Simulator instance. Potentially there can be one 153 // The currently executing Simulator instance. Potentially there can be one
154 // for each native thread. 154 // for each native thread.
155 static Simulator* current(); 155 static Simulator* current(v8::internal::Isolate* isolate);
156 156
157 // Accessors for register state. Reading the pc value adheres to the ARM 157 // Accessors for register state. Reading the pc value adheres to the ARM
158 // architecture specification and is off by a 8 from the currently executing 158 // architecture specification and is off by a 8 from the currently executing
159 // instruction. 159 // instruction.
160 void set_register(int reg, int32_t value); 160 void set_register(int reg, int32_t value);
161 int32_t get_register(int reg) const; 161 int32_t get_register(int reg) const;
162 void set_dw_register(int dreg, const int* dbl); 162 void set_dw_register(int dreg, const int* dbl);
163 163
164 // Support for VFP. 164 // Support for VFP.
165 void set_s_register(int reg, unsigned int value); 165 void set_s_register(int reg, unsigned int value);
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189 // which sets up the simulator state and grabs the result on return. 189 // which sets up the simulator state and grabs the result on return.
190 int32_t Call(byte* entry, int argument_count, ...); 190 int32_t Call(byte* entry, int argument_count, ...);
191 191
192 // Push an address onto the JS stack. 192 // Push an address onto the JS stack.
193 uintptr_t PushAddress(uintptr_t address); 193 uintptr_t PushAddress(uintptr_t address);
194 194
195 // Pop an address from the JS stack. 195 // Pop an address from the JS stack.
196 uintptr_t PopAddress(); 196 uintptr_t PopAddress();
197 197
198 // ICache checking. 198 // ICache checking.
199 static void FlushICache(void* start, size_t size); 199 static void FlushICache(v8::internal::HashMap* i_cache, void* start,
200 size_t size);
200 201
201 private: 202 private:
202 enum special_values { 203 enum special_values {
203 // Known bad pc value to ensure that the simulator does not execute 204 // Known bad pc value to ensure that the simulator does not execute
204 // without being properly setup. 205 // without being properly setup.
205 bad_lr = -1, 206 bad_lr = -1,
206 // A pc value used to signal the simulator to stop execution. Generally 207 // A pc value used to signal the simulator to stop execution. Generally
207 // the lr is set to this value on transition from native C code to 208 // the lr is set to this value on transition from native C code to
208 // simulated execution, so that the simulator can "return" to the native 209 // simulated execution, so that the simulator can "return" to the native
209 // C code. 210 // C code.
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272 273
273 void DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(Instr* instr); 274 void DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(Instr* instr);
274 void DecodeVCMP(Instr* instr); 275 void DecodeVCMP(Instr* instr);
275 void DecodeVCVTBetweenDoubleAndSingle(Instr* instr); 276 void DecodeVCVTBetweenDoubleAndSingle(Instr* instr);
276 void DecodeVCVTBetweenFloatingPointAndInteger(Instr* instr); 277 void DecodeVCVTBetweenFloatingPointAndInteger(Instr* instr);
277 278
278 // Executes one instruction. 279 // Executes one instruction.
279 void InstructionDecode(Instr* instr); 280 void InstructionDecode(Instr* instr);
280 281
281 // ICache. 282 // ICache.
282 static void CheckICache(Instr* instr); 283 static void CheckICache(v8::internal::HashMap* i_cache, Instr* instr);
283 static void FlushOnePage(intptr_t start, int size); 284 static void FlushOnePage(v8::internal::HashMap* i_cache, intptr_t start,
284 static CachePage* GetCachePage(void* page); 285 int size);
286 static CachePage* GetCachePage(v8::internal::HashMap* i_cache, void* page);
285 287
286 // Runtime call support. 288 // Runtime call support.
287 static void* RedirectExternalReference(void* external_function, 289 static void* RedirectExternalReference(void* external_function,
288 bool fp_return); 290 bool fp_return);
289 291
290 // For use in calls that take two double values, constructed from r0, r1, r2 292 // For use in calls that take two double values, constructed from r0, r1, r2
291 // and r3. 293 // and r3.
292 void GetFpArgs(double* x, double* y); 294 void GetFpArgs(double* x, double* y);
293 void SetFpResult(const double& result); 295 void SetFpResult(const double& result);
294 void TrashCallerSaveRegisters(); 296 void TrashCallerSaveRegisters();
(...skipping 16 matching lines...) Expand all
311 bool inv_op_vfp_flag_; 313 bool inv_op_vfp_flag_;
312 bool div_zero_vfp_flag_; 314 bool div_zero_vfp_flag_;
313 bool overflow_vfp_flag_; 315 bool overflow_vfp_flag_;
314 bool underflow_vfp_flag_; 316 bool underflow_vfp_flag_;
315 bool inexact_vfp_flag_; 317 bool inexact_vfp_flag_;
316 318
317 // Simulator support. 319 // Simulator support.
318 char* stack_; 320 char* stack_;
319 bool pc_modified_; 321 bool pc_modified_;
320 int icount_; 322 int icount_;
321 static bool initialized_;
322 323
323 // Icache simulation 324 // Icache simulation
324 static v8::internal::HashMap* i_cache_; 325 v8::internal::HashMap* i_cache_;
325 326
326 // Registered breakpoints. 327 // Registered breakpoints.
327 Instr* break_pc_; 328 Instr* break_pc_;
328 instr_t break_instr_; 329 instr_t break_instr_;
330
331 v8::internal::Isolate* isolate_;
329 }; 332 };
330 333
331 } } // namespace assembler::arm 334 } } // namespace assembler::arm
332 335
333 336
334 // The simulator has its own stack. Thus it has a different stack limit from 337 // The simulator has its own stack. Thus it has a different stack limit from
335 // the C-based native code. Setting the c_limit to indicate a very small 338 // the C-based native code. Setting the c_limit to indicate a very small
336 // stack cause stack overflow errors, since the simulator ignores the input. 339 // stack cause stack overflow errors, since the simulator ignores the input.
337 // This is unlikely to be an issue in practice, though it might cause testing 340 // This is unlikely to be an issue in practice, though it might cause testing
338 // trouble down the line. 341 // trouble down the line.
339 class SimulatorStack : public v8::internal::AllStatic { 342 class SimulatorStack : public v8::internal::AllStatic {
340 public: 343 public:
341 static inline uintptr_t JsLimitFromCLimit(uintptr_t c_limit) { 344 static inline uintptr_t JsLimitFromCLimit(uintptr_t c_limit) {
342 return assembler::arm::Simulator::current()->StackLimit(); 345 return assembler::arm::Simulator::current(
346 v8::internal::Isolate::Current())->StackLimit();
343 } 347 }
344 348
345 static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) { 349 static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) {
346 assembler::arm::Simulator* sim = assembler::arm::Simulator::current(); 350 assembler::arm::Simulator* sim =
351 assembler::arm::Simulator::current(v8::internal::Isolate::Current());
347 return sim->PushAddress(try_catch_address); 352 return sim->PushAddress(try_catch_address);
348 } 353 }
349 354
350 static inline void UnregisterCTryCatch() { 355 static inline void UnregisterCTryCatch() {
351 assembler::arm::Simulator::current()->PopAddress(); 356 assembler::arm::Simulator::current(v8::internal::Isolate::Current())->
357 PopAddress();
352 } 358 }
353 }; 359 };
354 360
355 361
356 #endif // defined(__arm__) 362 #endif // defined(__arm__)
357 363
358 #endif // V8_ARM_SIMULATOR_ARM_H_ 364 #endif // V8_ARM_SIMULATOR_ARM_H_
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