Heap profiler: skip byte arrays that represent free list blocks when counting allocated objects.

src/spaces.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 1522 matching lines @@
   } else if (size_in_bytes == 2 * kPointerSize) {
     set_map(Heap::raw_unchecked_two_pointer_filler_map());
   } else {
     UNREACHABLE();
   }
   ASSERT(Size() == size_in_bytes);
 }
 
 
 Address FreeListNode::next() {
-  ASSERT(map() == Heap::raw_unchecked_byte_array_map() ||
-         map() == Heap::raw_unchecked_two_pointer_filler_map());
+  ASSERT(IsFreeListNode(this));
   if (map() == Heap::raw_unchecked_byte_array_map()) {
     ASSERT(Size() >= kNextOffset + kPointerSize);
     return Memory::Address_at(address() + kNextOffset);
   } else {
     return Memory::Address_at(address() + kPointerSize);
   }
 }
 
 
 void FreeListNode::set_next(Address next) {
-  ASSERT(map() == Heap::raw_unchecked_byte_array_map() ||
-         map() == Heap::raw_unchecked_two_pointer_filler_map());
+  ASSERT(IsFreeListNode(this));
   if (map() == Heap::raw_unchecked_byte_array_map()) {
     ASSERT(Size() >= kNextOffset + kPointerSize);
     Memory::Address_at(address() + kNextOffset) = next;
   } else {
     Memory::Address_at(address() + kPointerSize) = next;
   }
 }
 
 
 OldSpaceFreeList::OldSpaceFreeList(AllocationSpace owner) : owner_(owner) {
@@ skipping 1213 matching lines @@
                      reinterpret_cast<Object**>(object->address()
                                                 + Page::kObjectAreaSize),
                      allocation_top);
       PrintF("\n");
     }
   }
 }
 #endif  // DEBUG
 
 } }  // namespace v8::internal