--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/utilities/decoder.cpp	Sat Dec 11 13:20:56 2010 -0500
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 1997, 2010, 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 "prims/jvm.h"
+#include "utilities/decoder.hpp"
+
+Decoder::decoder_status  Decoder::_decoder_status = Decoder::no_error;
+bool                     Decoder::_initialized = false;
+
+#ifndef _WINDOWS
+
+// Implementation of common functionalities among Solaris and Linux
+#include "utilities/elfFile.hpp"
+
+ElfFile* Decoder::_opened_elf_files = NULL;
+
+bool Decoder::can_decode_C_frame_in_vm() {
+  return true;
+}
+
+void Decoder::initialize() {
+  _initialized = true;
+}
+
+void Decoder::uninitialize() {
+  if (_opened_elf_files != NULL) {
+    delete _opened_elf_files;
+    _opened_elf_files = NULL;
+  }
+  _initialized = false;
+}
+
+Decoder::decoder_status Decoder::decode(address addr, const char* filepath, char *buf, int buflen, int *offset) {
+  if (_decoder_status != no_error) {
+    return _decoder_status;
+  }
+
+  ElfFile* file = get_elf_file(filepath);
+  if (_decoder_status != no_error) {
+    return _decoder_status;
+  }
+
+  const char* symbol = file->decode(addr, offset);
+  if (file->get_status() == out_of_memory) {
+    _decoder_status = out_of_memory;
+    return _decoder_status;
+  } else if (symbol != NULL) {
+    if (!demangle(symbol, buf, buflen)) {
+      jio_snprintf(buf, buflen, "%s", symbol);
+    }
+    return no_error;
+  } else {
+    return symbol_not_found;
+  }
+}
+
+ElfFile* Decoder::get_elf_file(const char* filepath) {
+  if (_decoder_status != no_error) {
+    return NULL;
+  }
+  ElfFile* file = _opened_elf_files;
+  while (file != NULL) {
+    if (file->same_elf_file(filepath)) {
+      return file;
+    }
+    file = file->m_next;
+  }
+
+  file = new ElfFile(filepath);
+  if (file == NULL) {
+    _decoder_status = out_of_memory;
+  }
+  if (_opened_elf_files != NULL) {
+    file->m_next = _opened_elf_files;
+  }
+
+  _opened_elf_files = file;
+  return file;
+}
+
+#endif
+