Workaround a gcc 4.4 bug....

src/heap.h

 // Copyright 2006-2008 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 903 matching lines @@
   // (since both AllocateRaw and AllocateRawMap are inlined).
   static inline Object* AllocateRawMap(int size_in_bytes);
 
   // Initializes a JSObject based on its map.
   static void InitializeJSObjectFromMap(JSObject* obj,
                                         FixedArray* properties,
                                         Map* map);
 
   static bool CreateInitialMaps();
   static bool CreateInitialObjects();
+
+  // These four Create*EntryStub functions are here because of a gcc-4.4 bug
+  // that assigns wrong vtable entries.
+  static void CreateCEntryStub();
+  static void CreateCEntryDebugBreakStub();
+  static void CreateJSEntryStub();
+  static void CreateJSConstructEntryStub();
   static void CreateFixedStubs();
+
   static Object* CreateOddball(Map* map,
                                const char* to_string,
                                Object* to_number);
 
   // Allocate empty fixed array.
   static Object* AllocateEmptyFixedArray();
 
   // Performs a minor collection in new generation.
   static void Scavenge();
 
@@ skipping 446 matching lines @@
   int marked_count_;
 
   // The count from the end of the previous full GC.  Will be zero if there
   // was no previous full GC.
   int previous_marked_count_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_