Re-establish mips basic infrastructure.

src/isolate.h

 // Copyright 2010 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 75 matching lines @@
 // assembler.h, where it is defined, here.
 typedef void* ExternalReferenceRedirectorPointer();
 
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 class Debug;
 class Debugger;
 class DebuggerAgent;
 #endif
 
-#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM)
+#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM) || \
+    !defined(__mips__) && defined(V8_TARGET_ARCH_MIPS)
 class Redirection;
 class Simulator;
 #endif
 
+
 // Static indirection table for handles to constants.  If a frame
 // element represents a constant, the data contains an index into
 // this table of handles to the actual constants.
 // Static indirection table for handles to constants.  If a Result
 // represents a constant, the data contains an index into this table
 // of handles to the actual constants.
 typedef ZoneList<Handle<Object> > ZoneObjectList;
 
 #define RETURN_IF_SCHEDULED_EXCEPTION(isolate)    \
   if (isolate->has_scheduled_exception())         \
@@ skipping 77 matching lines @@
   MaybeObject* scheduled_exception_;
   bool external_caught_exception_;
   SaveContext* save_context_;
   v8::TryCatch* catcher_;
 
   // Stack.
   Address c_entry_fp_;  // the frame pointer of the top c entry frame
   Address handler_;   // try-blocks are chained through the stack
 
 #ifdef USE_SIMULATOR
-#ifdef V8_TARGET_ARCH_ARM
+#if defined(V8_TARGET_ARCH_ARM) || defined(V8_TARGET_ARCH_MIPS)
   Simulator* simulator_;
-#elif V8_TARGET_ARCH_MIPS
-  assembler::mips::Simulator* simulator_;
 #endif
 #endif  // USE_SIMULATOR
 
 #ifdef ENABLE_LOGGING_AND_PROFILING
   Address js_entry_sp_;  // the stack pointer of the bottom js entry frame
   Address external_callback_;  // the external callback we're currently in
 #endif
 
 #ifdef ENABLE_VMSTATE_TRACKING
   StateTag current_vm_state_;
 #endif
 
   // Generated code scratch locations.
   int32_t formal_count_;
 
   // Call back function to report unsafe JS accesses.
   v8::FailedAccessCheckCallback failed_access_check_callback_;
 
  private:
   Address try_catch_handler_address_;
 };
 
-#if defined(V8_TARGET_ARCH_ARM)
+#if defined(V8_TARGET_ARCH_ARM) || defined(V8_TARGET_ARCH_MIPS)
 
 #define ISOLATE_PLATFORM_INIT_LIST(V)                                          \
   /* VirtualFrame::SpilledScope state */                                       \
   V(bool, is_virtual_frame_in_spilled_scope, false)                            \
   /* CodeGenerator::EmitNamedStore state */                                    \
   V(int, inlined_write_barrier_size, -1)
 
-#if !defined(__arm__)
+#if !defined(__arm__) && !defined(__mips__)
 class HashMap;
 #endif
 
 #else
 
 #define ISOLATE_PLATFORM_INIT_LIST(V)
 
 #endif
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
@@ skipping 91 matching lines @@
   // A thread has a PerIsolateThreadData instance for each isolate that it has
   // entered. That instance is allocated when the isolate is initially entered
   // and reused on subsequent entries.
   class PerIsolateThreadData {
    public:
     PerIsolateThreadData(Isolate* isolate, ThreadId thread_id)
         : isolate_(isolate),
           thread_id_(thread_id),
           stack_limit_(0),
           thread_state_(NULL),
-#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM)
+#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM) || \
+    !defined(__mips__) && defined(V8_TARGET_ARCH_MIPS)
           simulator_(NULL),
 #endif
           next_(NULL),
           prev_(NULL) { }
     Isolate* isolate() const { return isolate_; }
     ThreadId thread_id() const { return thread_id_; }
     void set_stack_limit(uintptr_t value) { stack_limit_ = value; }
     uintptr_t stack_limit() const { return stack_limit_; }
     ThreadState* thread_state() const { return thread_state_; }
     void set_thread_state(ThreadState* value) { thread_state_ = value; }
 
-#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM)
+#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM) || \
+    !defined(__mips__) && defined(V8_TARGET_ARCH_MIPS)
     Simulator* simulator() const { return simulator_; }
     void set_simulator(Simulator* simulator) {
       simulator_ = simulator;
     }
 #endif
 
     bool Matches(Isolate* isolate, ThreadId thread_id) const {
       return isolate_ == isolate && thread_id_ == thread_id;
     }
 
    private:
     Isolate* isolate_;
     ThreadId thread_id_;
     uintptr_t stack_limit_;
     ThreadState* thread_state_;
 
-#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM)
+#if !defined(__arm__) && defined(V8_TARGET_ARCH_ARM) || \
+    !defined(__mips__) && defined(V8_TARGET_ARCH_MIPS)
     Simulator* simulator_;
 #endif
 
     PerIsolateThreadData* next_;
     PerIsolateThreadData* prev_;
 
     friend class Isolate;
     friend class ThreadDataTable;
     friend class EntryStackItem;
 
@@ skipping 462 matching lines @@
 #ifdef DEBUG
   HistogramInfo* heap_histograms() { return heap_histograms_; }
 
   JSObject::SpillInformation* js_spill_information() {
     return &js_spill_information_;
   }
 
   int* code_kind_statistics() { return code_kind_statistics_; }
 #endif
 
-#if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__)
+#if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__) || \
+    defined(V8_TARGET_ARCH_MIPS) && !defined(__mips__)
   bool simulator_initialized() { return simulator_initialized_; }
   void set_simulator_initialized(bool initialized) {
     simulator_initialized_ = initialized;
   }
 
   HashMap* simulator_i_cache() { return simulator_i_cache_; }
   void set_simulator_i_cache(HashMap* hash_map) {
     simulator_i_cache_ = hash_map;
   }
 
@@ skipping 201 matching lines @@
   StringInputBuffer objects_string_compare_buffer_a_;
   StringInputBuffer objects_string_compare_buffer_b_;
   StaticResource<StringInputBuffer> objects_string_input_buffer_;
   unibrow::Mapping<unibrow::Ecma262Canonicalize>
       regexp_macro_assembler_canonicalize_;
   RegExpStack* regexp_stack_;
   unibrow::Mapping<unibrow::Ecma262Canonicalize> interp_canonicalize_mapping_;
   ZoneObjectList frame_element_constant_list_;
   ZoneObjectList result_constant_list_;
 
-#if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__)
+#if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__) || \
+    defined(V8_TARGET_ARCH_MIPS) && !defined(__mips__)
   bool simulator_initialized_;
   HashMap* simulator_i_cache_;
   Redirection* simulator_redirection_;
 #endif
 
 #ifdef DEBUG
   // A static array of histogram info for each type.
   HistogramInfo heap_histograms_[LAST_TYPE + 1];
   JSObject::SpillInformation js_spill_information_;
   int code_kind_statistics_[Code::NUMBER_OF_KINDS];
@@ skipping 206 matching lines @@
 
 } }  // namespace v8::internal
 
 // TODO(isolates): Get rid of these -inl.h includes and place them only where
 //                 they're needed.
 #include "allocation-inl.h"
 #include "zone-inl.h"
 #include "frames-inl.h"
 
 #endif  // V8_ISOLATE_H_