--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/trace/traceStream.hpp	Mon Jun 10 11:30:51 2013 +0200
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_TRACE_TRACESTREAM_HPP
+#define SHARE_VM_TRACE_TRACESTREAM_HPP
+
+#include "utilities/macros.hpp"
+
+#if INCLUDE_TRACE
+
+#include "oops/klass.hpp"
+#include "oops/method.hpp"
+#include "oops/symbol.hpp"
+#include "utilities/ostream.hpp"
+
+class TraceStream : public StackObj {
+ private:
+  outputStream& _st;
+
+ public:
+  TraceStream(outputStream& stream): _st(stream) {}
+
+  void print_val(const char* label, u1 val) {
+    _st.print("%s = "UINT32_FORMAT, label, val);
+  }
+
+  void print_val(const char* label, u2 val) {
+    _st.print("%s = "UINT32_FORMAT, label, val);
+  }
+
+  void print_val(const char* label, s2 val) {
+    _st.print("%s = "INT32_FORMAT, label, val);
+  }
+
+  void print_val(const char* label, u4 val) {
+    _st.print("%s = "UINT32_FORMAT, label, val);
+  }
+
+  void print_val(const char* label, s4 val) {
+    _st.print("%s = "INT32_FORMAT, label, val);
+  }
+
+  void print_val(const char* label, u8 val) {
+    _st.print("%s = "UINT64_FORMAT, label, val);
+  }
+
+  void print_val(const char* label, s8 val) {
+    _st.print("%s = "INT64_FORMAT, label, val);
+  }
+
+  void print_val(const char* label, bool val) {
+    _st.print("%s = %s", label, val ? "true" : "false");
+  }
+
+  void print_val(const char* label, float val) {
+    _st.print("%s = %f", label, val);
+  }
+
+  void print_val(const char* label, double val) {
+    _st.print("%s = %f", label, val);
+  }
+
+  // Caller is machine generated code located in traceEventClasses.hpp
+  // Event<TraceId>::writeEvent() (pseudocode) contains the
+  // necessary ResourceMark for the resource allocations below.
+  // See traceEventClasses.xsl for details.
+  void print_val(const char* label, const Klass* const val) {
+    const char* description = "NULL";
+    if (val != NULL) {
+      Symbol* name = val->name();
+      if (name != NULL) {
+        description = name->as_C_string();
+      }
+    }
+    _st.print("%s = %s", label, description);
+  }
+
+  // Caller is machine generated code located in traceEventClasses.hpp
+  // Event<TraceId>::writeEvent() (pseudocode) contains the
+  // necessary ResourceMark for the resource allocations below.
+  // See traceEventClasses.xsl for details.
+  void print_val(const char* label, const Method* const val) {
+    const char* description = "NULL";
+    if (val != NULL) {
+      description = val->name_and_sig_as_C_string();
+    }
+    _st.print("%s = %s", label, description);
+  }
+
+  void print_val(const char* label, const char* val) {
+    _st.print("%s = '%s'", label, val);
+  }
+
+  void print(const char* val) {
+    _st.print(val);
+  }
+};
+
+#endif /* INCLUDE_TRACE */
+#endif /* SHARE_VM_TRACE_TRACESTREAM_HPP */