Patch for allowing several V8 instances in process:...

src/arm/builtins-arm.cc

Index: src/arm/builtins-arm.cc
===================================================================
--- src/arm/builtins-arm.cc	(revision 3427)
+++ src/arm/builtins-arm.cc	(working copy)
@@ -300,7 +300,7 @@
                        r5,
                        JSArray::kPreallocatedArrayElements,
                        call_generic_code);
-  __ IncrementCounter(&Counters::array_function_native, 1, r3, r4);
+  __ IncrementCounter(&COUNTER(array_function_native), 1, r3, r4);
   // Setup return value, remove receiver from stack and return.
   __ mov(r0, r2);
   __ add(sp, sp, Operand(kPointerSize));
@@ -336,7 +336,7 @@
                   r7,
                   true,
                   call_generic_code);
-  __ IncrementCounter(&Counters::array_function_native, 1, r2, r4);
+  __ IncrementCounter(&COUNTER(array_function_native), 1, r2, r4);
   // Setup return value, remove receiver and argument from stack and return.
   __ mov(r0, r3);
   __ add(sp, sp, Operand(2 * kPointerSize));
@@ -360,7 +360,7 @@
                   r7,
                   false,
                   call_generic_code);
-  __ IncrementCounter(&Counters::array_function_native, 1, r2, r6);
+  __ IncrementCounter(&COUNTER(array_function_native), 1, r2, r6);
 
   // Fill arguments as array elements. Copy from the top of the stack (last
   // element) to the array backing store filling it backwards. Note:
@@ -778,7 +778,7 @@
   __ LeaveConstructFrame();
   __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2 - 1));
   __ add(sp, sp, Operand(kPointerSize));
-  __ IncrementCounter(&Counters::constructed_objects, 1, r1, r2);
+  __ IncrementCounter(&COUNTER(constructed_objects), 1, r1, r2);
   __ Jump(lr);
 }