Add malloc/new profiling on linux

src/LinuxMallocProfiling.h

-//===- subzero/src/IceMangling.h - Name mangling for crosstests -*- C++ -*-===//
+//===--- subzero/src/LinuxMallocProfiling.h - malloc/new tracing  ---------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
-/// \brief Declares utility functions for name mangling for cross tests.
+/// \brief malloc/new/...caller tracing.
 ///
 //===----------------------------------------------------------------------===//
 
-#ifndef SUBZERO_SRC_ICEMANGLING_H
-#define SUBZERO_SRC_ICEMANGLING_H
-
-#include "IceDefs.h"
-
 namespace Ice {
 
-IceString mangleName(const IceString &Name);
+class LinuxMallocProfiling {
+ public:
+  static void Start();

[Jim Stichnoth, 2016/03/12 00:12:58]

name these start() and end()

[sehr, 2016/03/15 00:36:45]

Done.

+  static void End();
+};
 
-} // end of namespace Ice
-
-#endif // SUBZERO_SRC_ICEMANGLING_H
+} // end namespace Ice

[Jim Stichnoth, 2016/03/12 00:12:58]

end of namespace Ice

[sehr, 2016/03/15 00:36:46]

Done.