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Side by Side Diff: src/mips64/simulator-mips64.h

Issue 2010243003: Move hashmap into base/. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 6 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 5
6 // Declares a Simulator for MIPS instructions if we are not generating a native 6 // Declares a Simulator for MIPS instructions if we are not generating a native
7 // MIPS binary. This Simulator allows us to run and debug MIPS code generation 7 // MIPS binary. This Simulator allows us to run and debug MIPS code generation
8 // on regular desktop machines. 8 // on regular desktop machines.
9 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro, 9 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro,
10 // which will start execution in the Simulator or forwards to the real entry 10 // which will start execution in the Simulator or forwards to the real entry
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219 219
220 // Accessor to the internal simulator stack area. 220 // Accessor to the internal simulator stack area.
221 uintptr_t StackLimit(uintptr_t c_limit) const; 221 uintptr_t StackLimit(uintptr_t c_limit) const;
222 222
223 // Executes MIPS instructions until the PC reaches end_sim_pc. 223 // Executes MIPS instructions until the PC reaches end_sim_pc.
224 void Execute(); 224 void Execute();
225 225
226 // Call on program start. 226 // Call on program start.
227 static void Initialize(Isolate* isolate); 227 static void Initialize(Isolate* isolate);
228 228
229 static void TearDown(HashMap* i_cache, Redirection* first); 229 static void TearDown(base::HashMap* i_cache, Redirection* first);
230 230
231 // V8 generally calls into generated JS code with 5 parameters and into 231 // V8 generally calls into generated JS code with 5 parameters and into
232 // generated RegExp code with 7 parameters. This is a convenience function, 232 // generated RegExp code with 7 parameters. This is a convenience function,
233 // which sets up the simulator state and grabs the result on return. 233 // which sets up the simulator state and grabs the result on return.
234 int64_t Call(byte* entry, int argument_count, ...); 234 int64_t Call(byte* entry, int argument_count, ...);
235 // Alternative: call a 2-argument double function. 235 // Alternative: call a 2-argument double function.
236 double CallFP(byte* entry, double d0, double d1); 236 double CallFP(byte* entry, double d0, double d1);
237 237
238 // Push an address onto the JS stack. 238 // Push an address onto the JS stack.
239 uintptr_t PushAddress(uintptr_t address); 239 uintptr_t PushAddress(uintptr_t address);
240 240
241 // Pop an address from the JS stack. 241 // Pop an address from the JS stack.
242 uintptr_t PopAddress(); 242 uintptr_t PopAddress();
243 243
244 // Debugger input. 244 // Debugger input.
245 void set_last_debugger_input(char* input); 245 void set_last_debugger_input(char* input);
246 char* last_debugger_input() { return last_debugger_input_; } 246 char* last_debugger_input() { return last_debugger_input_; }
247 247
248 // ICache checking. 248 // ICache checking.
249 static void FlushICache(v8::internal::HashMap* i_cache, void* start, 249 static void FlushICache(base::HashMap* i_cache, void* start,
250 size_t size); 250 size_t size);
251 251
252 // Returns true if pc register contains one of the 'special_values' defined 252 // Returns true if pc register contains one of the 'special_values' defined
253 // below (bad_ra, end_sim_pc). 253 // below (bad_ra, end_sim_pc).
254 bool has_bad_pc() const; 254 bool has_bad_pc() const;
255 255
256 private: 256 private:
257 enum special_values { 257 enum special_values {
258 // Known bad pc value to ensure that the simulator does not execute 258 // Known bad pc value to ensure that the simulator does not execute
259 // without being properly setup. 259 // without being properly setup.
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408 if (instr->IsForbiddenAfterBranch()) { 408 if (instr->IsForbiddenAfterBranch()) {
409 V8_Fatal(__FILE__, __LINE__, 409 V8_Fatal(__FILE__, __LINE__,
410 "Eror:Unexpected %i opcode in a branch delay slot.", 410 "Eror:Unexpected %i opcode in a branch delay slot.",
411 instr->OpcodeValue()); 411 instr->OpcodeValue());
412 } 412 }
413 InstructionDecode(instr); 413 InstructionDecode(instr);
414 SNPrintF(trace_buf_, " "); 414 SNPrintF(trace_buf_, " ");
415 } 415 }
416 416
417 // ICache. 417 // ICache.
418 static void CheckICache(v8::internal::HashMap* i_cache, Instruction* instr); 418 static void CheckICache(base::HashMap* i_cache, Instruction* instr);
419 static void FlushOnePage(v8::internal::HashMap* i_cache, intptr_t start, 419 static void FlushOnePage(base::HashMap* i_cache, intptr_t start,
420 size_t size); 420 size_t size);
421 static CachePage* GetCachePage(v8::internal::HashMap* i_cache, void* page); 421 static CachePage* GetCachePage(base::HashMap* i_cache, void* page);
422 422
423 enum Exception { 423 enum Exception {
424 none, 424 none,
425 kIntegerOverflow, 425 kIntegerOverflow,
426 kIntegerUnderflow, 426 kIntegerUnderflow,
427 kDivideByZero, 427 kDivideByZero,
428 kNumExceptions 428 kNumExceptions
429 }; 429 };
430 430
431 // Exceptions. 431 // Exceptions.
(...skipping 24 matching lines...) Expand all
456 char* stack_; 456 char* stack_;
457 bool pc_modified_; 457 bool pc_modified_;
458 int64_t icount_; 458 int64_t icount_;
459 int break_count_; 459 int break_count_;
460 EmbeddedVector<char, 128> trace_buf_; 460 EmbeddedVector<char, 128> trace_buf_;
461 461
462 // Debugger input. 462 // Debugger input.
463 char* last_debugger_input_; 463 char* last_debugger_input_;
464 464
465 // Icache simulation. 465 // Icache simulation.
466 v8::internal::HashMap* i_cache_; 466 base::HashMap* i_cache_;
467 467
468 v8::internal::Isolate* isolate_; 468 v8::internal::Isolate* isolate_;
469 469
470 // Registered breakpoints. 470 // Registered breakpoints.
471 Instruction* break_pc_; 471 Instruction* break_pc_;
472 Instr break_instr_; 472 Instr break_instr_;
473 473
474 // Stop is disabled if bit 31 is set. 474 // Stop is disabled if bit 31 is set.
475 static const uint32_t kStopDisabledBit = 1 << 31; 475 static const uint32_t kStopDisabledBit = 1 << 31;
476 476
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522 static inline void UnregisterCTryCatch(Isolate* isolate) { 522 static inline void UnregisterCTryCatch(Isolate* isolate) {
523 Simulator::current(isolate)->PopAddress(); 523 Simulator::current(isolate)->PopAddress();
524 } 524 }
525 }; 525 };
526 526
527 } // namespace internal 527 } // namespace internal
528 } // namespace v8 528 } // namespace v8
529 529
530 #endif // !defined(USE_SIMULATOR) 530 #endif // !defined(USE_SIMULATOR)
531 #endif // V8_MIPS_SIMULATOR_MIPS_H_ 531 #endif // V8_MIPS_SIMULATOR_MIPS_H_
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