Adds support for collecting statistics about code and its metadata.

src/objects-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 4002 matching lines @@
 ACCESSORS(BytecodeArray, source_position_table, ByteArray,
           kSourcePositionTableOffset)
 
 Address BytecodeArray::GetFirstBytecodeAddress() {
   return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize;
 }
 
 
 int BytecodeArray::BytecodeArraySize() { return SizeFor(this->length()); }
 
+int BytecodeArray::SizeIncludingMetadata() {
+  int size = BytecodeArraySize();
+  size += constant_pool()->Size();
+  size += handler_table()->Size();
+  size += source_position_table()->Size();
+  return size;
+}
 
 ACCESSORS(FixedTypedArrayBase, base_pointer, Object, kBasePointerOffset)
 
 
 void* FixedTypedArrayBase::external_pointer() const {
   intptr_t ptr = READ_INTPTR_FIELD(this, kExternalPointerOffset);
   return reinterpret_cast<void*>(ptr);
 }
 
 
@@ skipping 1158 matching lines @@
 };
 
 int AbstractCode::instruction_size() {
   if (IsCode()) {
     return GetCode()->instruction_size();
   } else {
     return GetBytecodeArray()->length();
   }
 }
 
+int AbstractCode::SizeIncludingMetadata() {
+  if (IsCode()) {
+    return GetCode()->SizeIncludingMetadata();
+  } else {
+    return GetBytecodeArray()->SizeIncludingMetadata();
+  }
+}
 int AbstractCode::ExecutableSize() {
   if (IsCode()) {
     return GetCode()->ExecutableSize();
   } else {
     return GetBytecodeArray()->BytecodeArraySize();
   }
 }
 
 Address AbstractCode::instruction_start() {
   if (IsCode()) {
@@ skipping 1209 matching lines @@
 
 byte* Code::instruction_end()  {
   return instruction_start() + instruction_size();
 }
 
 
 int Code::body_size() {
   return RoundUp(instruction_size(), kObjectAlignment);
 }
 
+int Code::SizeIncludingMetadata() {
+  int size = CodeSize();
+  size += relocation_info()->Size();
+  size += deoptimization_data()->Size();
+  size += handler_table()->Size();
+  return size;
+}
 
 ByteArray* Code::unchecked_relocation_info() {
   return reinterpret_cast<ByteArray*>(READ_FIELD(this, kRelocationInfoOffset));
 }
 
 
 byte* Code::relocation_start() {
   return unchecked_relocation_info()->GetDataStartAddress();
 }
 
@@ skipping 1416 matching lines @@
 #undef WRITE_INT64_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_INL_H_