* Modify simulator and ARM code generator to avoid swi...

src/arm/simulator-arm.h

 // Copyright 2008 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 88 matching lines @@
   // Special case of set_register and get_register to access the raw PC value.
   void set_pc(int32_t value);
   int32_t get_pc() const;
 
   // Accessor to the internal simulator stack area.
   uintptr_t StackLimit() const;
 
   // Executes ARM instructions until the PC reaches end_sim_pc.
   void Execute();
 
+  // Call on program start.
+  static void Initialize();
+
   // V8 generally calls into generated code with 5 parameters. This is a
   // convenience function, which sets up the simulator state and grabs the
   // result on return.
   v8::internal::Object* Call(int32_t entry, int32_t p0, int32_t p1,
                              int32_t p2, int32_t p3, int32_t p4);
 
  private:
   enum special_values {
     // Known bad pc value to ensure that the simulator does not execute
     // without being properly setup.
@@ skipping 49 matching lines @@
   void DecodeType2(Instr* instr);
   void DecodeType3(Instr* instr);
   void DecodeType4(Instr* instr);
   void DecodeType5(Instr* instr);
   void DecodeType6(Instr* instr);
   void DecodeType7(Instr* instr);
 
   // Executes one instruction.
   void InstructionDecode(Instr* instr);
 
+  // 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.
   void GetFpArgs(double* x, double* y);
   void SetFpResult(const double& result);
   void TrashCallerSaveRegisters();
 
   // architecture state
   int32_t registers_[16];
   bool n_flag_;
   bool z_flag_;
   bool c_flag_;
   bool v_flag_;
 
   // simulator support
   char* stack_;
   bool pc_modified_;
   int icount_;
+  static bool initialized_;
 
   // registered breakpoints
   Instr* break_pc_;
   instr_t break_instr_;
 };
 
 } }  // namespace assembler::arm
 
 #endif  // defined(__arm__)
 
 #endif  // V8_ARM_SIMULATOR_ARM_H_