Type profiler by intercepting 'new' and 'delete' expressions.

base/allocator/allocated_type_profiler.h

Index: base/allocator/allocated_type_profiler.h
diff --git a/base/allocator/allocated_type_profiler.h b/base/allocator/allocated_type_profiler.h
new file mode 100644
index 0000000000000000000000000000000000000000..16e018862be68c4649458ab5e300dac9583dc29c
--- /dev/null
+++ b/base/allocator/allocated_type_profiler.h
@@ -0,0 +1,37 @@
+// Copyright 2012 The Chromium 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 BASE_ALLOCATOR_ALLOCATED_TYPE_PROFILER_H_
+#define BASE_ALLOCATOR_ALLOCATED_TYPE_PROFILER_H_
+
+#if defined(PROFILING_ALLOCATED_TYPE)
+
+#include <cstddef>
+#include <typeinfo>
+
+// These functions wrap all 'new' and 'delete' expressions.
+// It depends on a modified version of Clang checked-in at

[jar (doing other things), 2012/08/23 19:55:25]

nit: "It depends on" --> "The are called by"

[Dai Mikurube (NOT FULLTIME), 2012/08/24 02:47:27]

Done.

+// deps/third_party/llvm-allocated-type.
+
+void* __op_new_intercept__(void* ptr,
+                           size_t size,
+                           const std::type_info& type);
+
+void* __op_delete_intercept__(void* ptr,
+                              size_t size,
+                              const std::type_info& type);
+
+namespace base {
+namespace allocated_type {
+
+typedef void* InterceptFunction(void*, size_t, const std::type_info&);
+void SetNewInterceptFunction(InterceptFunction* new_intercept);
+void SetDeleteInterceptFunction(InterceptFunction* delete_intercept);
+
+}  // namespace allocated_type
+}  // namespace base
+
+#endif  // defined(PROFILING_ALLOCATED_TYPE)
+
+#endif  // BASE_ALLOCATOR_ALLOCATED_TYPE_PROFILER_H_