Split window support from V8. ...

src/builtins-ia32.cc

 // 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 432 matching lines @@
     __ mov(Operand(ebx), eax);
     __ pop(edi);  // restore edi after the call
 
     // Get the arguments count and untag it.
     __ pop(eax);
     __ shr(eax, kSmiTagSize);
 
     __ LeaveInternalFrame();
     __ jmp(&patch_receiver);
 
-    // Use the global object from the called function as the receiver.
+    // Use the global receiver object from the called function as the receiver.
     __ bind(&use_global_receiver);
     const int kGlobalIndex =
         Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize;
     __ mov(ebx, FieldOperand(esi, kGlobalIndex));
+    __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset));
 
     __ bind(&patch_receiver);
     __ mov(Operand(esp, eax, times_4, 0), ebx);
 
     __ bind(&done);
   }
 
   // 4. Shift stuff one slot down the stack.
   { Label loop;
     __ lea(ecx, Operand(eax, +1));  // +1 ~ copy receiver too
@@ skipping 118 matching lines @@
   __ cmp(ecx, LAST_JS_OBJECT_TYPE);
   __ j(less_equal, &push_receiver);
 
   // Convert the receiver to an object.
   __ bind(&call_to_object);
   __ push(ebx);
   __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
   __ mov(ebx, Operand(eax));
   __ jmp(&push_receiver);
 
-  // Use the current global object as the receiver.
+  // Use the current global receiver object as the receiver.
   __ bind(&use_global_receiver);
   const int kGlobalOffset =
       Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize;
   __ mov(ebx, FieldOperand(esi, kGlobalOffset));
+  __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset));
 
   // Push the receiver.
   __ bind(&push_receiver);
   __ push(ebx);
 
   // Copy all arguments from the array to the stack.
   Label entry, loop;
   __ mov(eax, Operand(ebp, kIndexOffset));
   __ jmp(&entry);
   __ bind(&loop);
@@ skipping 280 matching lines @@
   // Register state for stub CallFunction (from CallFunctionStub in ic-ia32.cc).
   // ----------- S t a t e -------------
   //  No registers used on entry.
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, 0, false);
 }
 
 #undef __
 
 } }  // namespace v8::internal