[Isolates] Merge r 6300:6500 from bleeding_edge to isolates.

src/arm/simulator-arm.h

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 60 matching lines @@
 
   static inline void UnregisterCTryCatch() { }
 };
 
 #else  // !defined(USE_SIMULATOR)
 // Running with a simulator.
 
 #include "constants-arm.h"
 #include "hashmap.h"
 
-namespace assembler {
-namespace arm {
+namespace v8 {
+namespace internal {
 
 class CachePage {
  public:
   static const int LINE_VALID = 0;
   static const int LINE_INVALID = 1;
 
   static const int kPageShift = 12;
   static const int kPageSize = 1 << kPageShift;
   static const int kPageMask = kPageSize - 1;
   static const int kLineShift = 2;  // The cache line is only 4 bytes right now.
@@ skipping 14 matching lines @@
 
  private:
   char data_[kPageSize];   // The cached data.
   static const int kValidityMapSize = kPageSize >> kLineShift;
   char validity_map_[kValidityMapSize];  // One byte per line.
 };
 
 
 class Simulator {
  public:
-  friend class Debugger;
+  friend class ArmDebugger;
   enum Register {
     no_reg = -1,
     r0 = 0, r1, r2, r3, r4, r5, r6, r7,
     r8, r9, r10, r11, r12, r13, r14, r15,
     num_registers,
     sp = 13,
     lr = 14,
     pc = 15,
     s0 = 0, s1, s2, s3, s4, s5, s6, s7,
     s8, s9, s10, s11, s12, s13, s14, s15,
@@ skipping 67 matching lines @@
     // without being properly setup.
     bad_lr = -1,
     // A pc value used to signal the simulator to stop execution.  Generally
     // the lr is set to this value on transition from native C code to
     // simulated execution, so that the simulator can "return" to the native
     // C code.
     end_sim_pc = -2
   };
 
   // Unsupported instructions use Format to print an error and stop execution.
-  void Format(Instr* instr, const char* format);
+  void Format(Instruction* instr, const char* format);
 
   // Checks if the current instruction should be executed based on its
   // condition bits.
-  bool ConditionallyExecute(Instr* instr);
+  bool ConditionallyExecute(Instruction* instr);
 
   // Helper functions to set the conditional flags in the architecture state.
   void SetNZFlags(int32_t val);
   void SetCFlag(bool val);
   void SetVFlag(bool val);
   bool CarryFrom(int32_t left, int32_t right);
   bool BorrowFrom(int32_t left, int32_t right);
   bool OverflowFrom(int32_t alu_out,
                     int32_t left,
                     int32_t right,
                     bool addition);
 
   // Support for VFP.
   void Compute_FPSCR_Flags(double val1, double val2);
   void Copy_FPSCR_to_APSR();
 
   // Helper functions to decode common "addressing" modes
-  int32_t GetShiftRm(Instr* instr, bool* carry_out);
-  int32_t GetImm(Instr* instr, bool* carry_out);
-  void HandleRList(Instr* instr, bool load);
-  void SoftwareInterrupt(Instr* instr);
+  int32_t GetShiftRm(Instruction* instr, bool* carry_out);
+  int32_t GetImm(Instruction* instr, bool* carry_out);
+  void HandleRList(Instruction* instr, bool load);
+  void SoftwareInterrupt(Instruction* instr);
 
   // Stop helper functions.
-  inline bool isStopInstruction(Instr* instr);
+  inline bool isStopInstruction(Instruction* instr);
   inline bool isWatchedStop(uint32_t bkpt_code);
   inline bool isEnabledStop(uint32_t bkpt_code);
   inline void EnableStop(uint32_t bkpt_code);
   inline void DisableStop(uint32_t bkpt_code);
   inline void IncreaseStopCounter(uint32_t bkpt_code);
   void PrintStopInfo(uint32_t code);
 
   // Read and write memory.
   inline uint8_t ReadBU(int32_t addr);
   inline int8_t ReadB(int32_t addr);
   inline void WriteB(int32_t addr, uint8_t value);
   inline void WriteB(int32_t addr, int8_t value);
 
-  inline uint16_t ReadHU(int32_t addr, Instr* instr);
-  inline int16_t ReadH(int32_t addr, Instr* instr);
+  inline uint16_t ReadHU(int32_t addr, Instruction* instr);
+  inline int16_t ReadH(int32_t addr, Instruction* instr);
   // Note: Overloaded on the sign of the value.
-  inline void WriteH(int32_t addr, uint16_t value, Instr* instr);
-  inline void WriteH(int32_t addr, int16_t value, Instr* instr);
+  inline void WriteH(int32_t addr, uint16_t value, Instruction* instr);
+  inline void WriteH(int32_t addr, int16_t value, Instruction* instr);
 
-  inline int ReadW(int32_t addr, Instr* instr);
-  inline void WriteW(int32_t addr, int value, Instr* instr);
+  inline int ReadW(int32_t addr, Instruction* instr);
+  inline void WriteW(int32_t addr, int value, Instruction* instr);
 
   int32_t* ReadDW(int32_t addr);
   void WriteDW(int32_t addr, int32_t value1, int32_t value2);
 
   // Executing is handled based on the instruction type.
-  void DecodeType01(Instr* instr);  // both type 0 and type 1 rolled into one
-  void DecodeType2(Instr* instr);
-  void DecodeType3(Instr* instr);
-  void DecodeType4(Instr* instr);
-  void DecodeType5(Instr* instr);
-  void DecodeType6(Instr* instr);
-  void DecodeType7(Instr* instr);
+  // Both type 0 and type 1 rolled into one.
+  void DecodeType01(Instruction* instr);
+  void DecodeType2(Instruction* instr);
+  void DecodeType3(Instruction* instr);
+  void DecodeType4(Instruction* instr);
+  void DecodeType5(Instruction* instr);
+  void DecodeType6(Instruction* instr);
+  void DecodeType7(Instruction* instr);
 
   // Support for VFP.
-  void DecodeTypeVFP(Instr* instr);
-  void DecodeType6CoprocessorIns(Instr* instr);
+  void DecodeTypeVFP(Instruction* instr);
+  void DecodeType6CoprocessorIns(Instruction* instr);
 
-  void DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(Instr* instr);
-  void DecodeVCMP(Instr* instr);
-  void DecodeVCVTBetweenDoubleAndSingle(Instr* instr);
-  void DecodeVCVTBetweenFloatingPointAndInteger(Instr* instr);
+  void DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(Instruction* instr);
+  void DecodeVCMP(Instruction* instr);
+  void DecodeVCVTBetweenDoubleAndSingle(Instruction* instr);
+  void DecodeVCVTBetweenFloatingPointAndInteger(Instruction* instr);
 
   // Executes one instruction.
-  void InstructionDecode(Instr* instr);
+  void InstructionDecode(Instruction* instr);
 
   // ICache.
-  static void CheckICache(v8::internal::HashMap* i_cache, Instr* instr);
+  static void CheckICache(v8::internal::HashMap* i_cache, Instruction* instr);
   static void FlushOnePage(v8::internal::HashMap* i_cache, intptr_t start,
                            int size);
   static CachePage* GetCachePage(v8::internal::HashMap* i_cache, void* page);
 
   // Runtime call support.
   static void* RedirectExternalReference(void* external_function,
                                          bool fp_return);
 
   // For use in calls that take two double values, constructed from r0, r1, r2
   // and r3.
@@ skipping 30 matching lines @@
 
   // Simulator support.
   char* stack_;
   bool pc_modified_;
   int icount_;
 
   // Icache simulation
   v8::internal::HashMap* i_cache_;
 
   // Registered breakpoints.
-  Instr* break_pc_;
-  instr_t break_instr_;
+  Instruction* break_pc_;
+  Instr break_instr_;
 
   v8::internal::Isolate* isolate_;
 
   // A stop is watched if its code is less than kNumOfWatchedStops.
   // Only watched stops support enabling/disabling and the counter feature.
   static const uint32_t kNumOfWatchedStops = 256;
 
   // Breakpoint is disabled if bit 31 is set.
   static const uint32_t kStopDisabledBit = 1 << 31;
 
   // A stop is enabled, meaning the simulator will stop when meeting the
   // instruction, if bit 31 of watched_stops[code].count is unset.
   // The value watched_stops[code].count & ~(1 << 31) indicates how many times
   // the breakpoint was hit or gone through.
-  struct StopCoundAndDesc {
+  struct StopCountAndDesc {
     uint32_t count;
     char* desc;
   };
-  StopCoundAndDesc watched_stops[kNumOfWatchedStops];
+  StopCountAndDesc watched_stops[kNumOfWatchedStops];
 };
 
-} }  // namespace assembler::arm
-
-
-namespace v8 {
-namespace internal {
 
 // When running with the simulator transition into simulated execution at this
 // point.
-#define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4)                         \
-  reinterpret_cast<Object*>(                                                   \
-      assembler::arm::Simulator::current(Isolate::Current())->                 \
-          Call(FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4))
+#define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
+  reinterpret_cast<Object*>(Simulator::current(Isolate::Current())->Call( \
+      FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4))
 
-#define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7)      \
-  assembler::arm::Simulator::current(Isolate::Current())->Call(                \
-    FUNCTION_ADDR(entry), 8, p0, p1, p2, p3, p4, p5, p6, p7)
+#define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \
+  Simulator::current(Isolate::Current())->Call( \
+      FUNCTION_ADDR(entry), 8, p0, p1, p2, p3, p4, p5, p6, p7)
 
 #define TRY_CATCH_FROM_ADDRESS(try_catch_address)                              \
   try_catch_address == NULL ?                                                  \
       NULL : *(reinterpret_cast<TryCatch**>(try_catch_address))
 
 
 // The simulator has its own stack. Thus it has a different stack limit from
 // the C-based native code.  Setting the c_limit to indicate a very small
 // stack cause stack overflow errors, since the simulator ignores the input.
 // This is unlikely to be an issue in practice, though it might cause testing
 // trouble down the line.
 class SimulatorStack : public v8::internal::AllStatic {
  public:
   static inline uintptr_t JsLimitFromCLimit(uintptr_t c_limit) {
-    return assembler::arm::Simulator::current(
-        v8::internal::Isolate::Current())->StackLimit();
+    return Simulator::current(Isolate::Current())->StackLimit();
   }
 
   static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) {
-    assembler::arm::Simulator* sim =
-        assembler::arm::Simulator::current(v8::internal::Isolate::Current());
+    Simulator* sim = Simulator::current(Isolate::Current());
     return sim->PushAddress(try_catch_address);
   }
 
   static inline void UnregisterCTryCatch() {
-    assembler::arm::Simulator::current(v8::internal::Isolate::Current())->
-        PopAddress();
+    Simulator::current(Isolate::Current())->PopAddress();
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // !defined(USE_SIMULATOR)
 #endif  // V8_ARM_SIMULATOR_ARM_H_