--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/utilities/machineCodePrinter.cpp	Thu Nov 15 11:40:50 2012 +0100
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2012, 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.
+ */
+
+#include "precompiled.hpp"
+#include "utilities/machineCodePrinter.hpp"
+#include "utilities/ostream.hpp"
+
+fileStream* MachineCodePrinter::_st = NULL;
+volatile int MachineCodePrinter::_write_lock = 0;
+
+void MachineCodePrinter::initialize() {
+  _st = new (ResourceObj::C_HEAP, mtInternal) fileStream("machineCode.txt");
+}
+
+void MachineCodePrinter::print(nmethod* nm) {
+  lock();
+  Disassembler::decode(nm, _st);
+  unlock();
+}
+
+void MachineCodePrinter::print(CodeBlob* cb) {
+  lock();
+  Disassembler::decode(cb, _st);
+  unlock();
+}
+
+void MachineCodePrinter::print(StubQueue* stub_queue) {
+  lock();
+  stub_queue->print_on(_st);
+  unlock();
+}
+
+void MachineCodePrinter::flush() {
+  _st->flush();
+}
+
+void MachineCodePrinter::lock() {
+  Thread::SpinAcquire(&_write_lock, "Put");
+}
+
+void MachineCodePrinter::unlock() {
+  Thread::SpinRelease(&_write_lock);
+}