1 files changed, 33 insertions, 0 deletions
diff --git a/deps/v8/src/heap/heap-layout-tracer.h b/deps/v8/src/heap/heap-layout-tracer.h
new file mode 100644
index 0000000000..c7d677807e
--- /dev/null
+++ b/deps/v8/src/heap/heap-layout-tracer.h
@@ -0,0 +1,33 @@
+// Copyright 2021 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.
+
+#ifndef V8_HEAP_HEAP_LAYOUT_TRACER_H_
+#define V8_HEAP_HEAP_LAYOUT_TRACER_H_
+
+#include "include/v8-callbacks.h"
+#include "src/common/globals.h"
+
+namespace v8 {
+namespace internal {
+
+class Heap;
+class BasicMemoryChunk;
+
+class HeapLayoutTracer : AllStatic {
+ public:
+  static void GCProloguePrintHeapLayout(v8::Isolate* isolate,
+                                        v8::GCType gc_type,
+                                        v8::GCCallbackFlags flags, void* data);
+  static void GCEpiloguePrintHeapLayout(v8::Isolate* isolate,
+                                        v8::GCType gc_type,
+                                        v8::GCCallbackFlags flags, void* data);
+
+ private:
+  static void PrintBasicMemoryChunk(std::ostream& os, BasicMemoryChunk* chunk,
+                                    const char* owner_name);
+  static void PrintHeapLayout(std::ostream& os, Heap* heap);
+};
+}  // namespace internal
+}  // namespace v8
+#endif  // V8_HEAP_HEAP_LAYOUT_TRACER_H_