Start using store buffers. Handle store buffer overflow situation....

src/v8globals.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 231 matching lines @@
   int buffer_size;
   int instr_size;
   int reloc_size;
   Assembler* origin;
 };
 
 
 // Callback function on object slots, used for iterating heap object slots in
 // HeapObjects, global pointers to heap objects, etc. The callback allows the
 // callback function to change the value of the slot.
-typedef void (*ObjectSlotCallback)(HeapObject** pointer);
+typedef void (*ObjectSlotCallback)(HeapObject** pointer, HeapObject* object);
 
 
 // Callback function used for iterating objects in heap spaces,
 // for example, scanning heap objects.
 typedef int (*HeapObjectCallback)(HeapObject* obj);
 
 
 // Callback function used for checking constraints when copying/relocating
 // objects. Returns true if an object can be copied/relocated from its
 // old_addr to a new_addr.
@@ skipping 201 matching lines @@
                   CMOV = 15,   // x86
                   RDTSC = 4,   // x86
                   CPUID = 10,  // x86
                   VFP3 = 1,    // ARM
                   ARMv7 = 2,   // ARM
                   SAHF = 0};   // x86
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8GLOBALS_H_