diff -r 000000000000 -r f90c822e73f8 src/share/vm/compiler/compileLog.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/compiler/compileLog.hpp	Wed Apr 27 01:25:04 2016 +0800
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2002, 2014, 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_COMPILER_COMPILELOG_HPP
+#define SHARE_VM_COMPILER_COMPILELOG_HPP
+
+#include "utilities/xmlstream.hpp"
+
+class ciBaseObject;
+class ciObject;
+class ciMetadata;
+class ciSymbol;
+
+// CompileLog
+//
+// An open stream for logging information about activities in a
+// compiler thread.  There is exactly one per CompilerThread,
+// if the +LogCompilation switch is enabled.
+class CompileLog : public xmlStream {
+ private:
+  const char*   _file;           // name of file where XML goes
+  julong        _file_end;       // last good end of file
+  intx          _thread_id;      // which compile thread
+
+  stringStream  _context;        // optional, killable context marker
+  char          _context_buffer[100];
+
+  char*         _identities;     // array of boolean
+  int           _identities_limit;
+  int           _identities_capacity;
+
+  CompileLog*   _next;           // static chain of all logs
+
+  static CompileLog* _first;     // head of static chain
+
+  void va_tag(bool push, const char* format, va_list ap) ATTRIBUTE_PRINTF(3, 0);
+
+ public:
+  CompileLog(const char* file_name, FILE* fp, intx thread_id);
+  ~CompileLog();
+
+  intx          thread_id()                      { return _thread_id; }
+  const char*   file()                           { return _file; }
+
+  // Optional context marker, to help place actions that occur during
+  // parsing. If there is no log output until the next context string
+  // or reset, context string will be silently ignored
+  stringStream* context()                        { return &_context; }
+  void    clear_context()                        { context()->reset(); }
+  void      set_context(const char* format, ...) ATTRIBUTE_PRINTF(2, 3);
+
+  void          name(ciSymbol* s);               // name='s'
+  void          name(Symbol* s)                  { xmlStream::name(s); }
+
+  // Output an object description, return obj->ident().
+  int           identify(ciBaseObject* obj);
+  void          clear_identities();
+
+  void inline_fail   (const char* reason);
+  void inline_success(const char* reason);
+
+  // virtuals
+  virtual void see_tag(const char* tag, bool push);
+  virtual void pop_tag(const char* tag);
+
+  // make a provisional end of log mark
+  void mark_file_end() { _file_end = out()->count(); }
+
+  // Print code cache statistics
+  void code_cache_state();
+
+  // copy all logs to the given stream
+  static void finish_log(outputStream* out);
+  static void finish_log_on_error(outputStream* out, char *buf, int buflen);
+};
+
+#endif // SHARE_VM_COMPILER_COMPILELOG_HPP