duke@435: /*
duke@435:  * Copyright 1997-2003 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // Interface for thread local storage
duke@435: 
duke@435: // Fast variant of ThreadLocalStorage::get_thread_slow
duke@435: extern "C" Thread*   get_thread();
duke@435: 
duke@435: // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86
duke@435: extern "C" uintptr_t _raw_thread_id();
duke@435: 
duke@435: class ThreadLocalStorage : AllStatic {
duke@435:  public:
duke@435:   static void    set_thread(Thread* thread);
duke@435:   static Thread* get_thread_slow();
duke@435:   static void    invalidate_all() { pd_invalidate_all(); }
duke@435: 
duke@435:   // Machine dependent stuff
duke@435:   #include "incls/_threadLS_pd.hpp.incl"
duke@435: 
duke@435:  public:
duke@435:   // Accessor
duke@435:   static inline int  thread_index()              { return _thread_index; }
duke@435:   static inline void set_thread_index(int index) { _thread_index = index; }
duke@435: 
duke@435:   // Initialization
duke@435:   // Called explicitly from VMThread::activate_system instead of init_globals.
duke@435:   static void init();
duke@435: 
duke@435:  private:
duke@435:   static int     _thread_index;
duke@435: 
duke@435:   static void    generate_code_for_get_thread();
duke@435: 
duke@435:   // Processor dependent parts of set_thread and initialization
duke@435:   static void pd_set_thread(Thread* thread);
duke@435:   static void pd_init();
duke@435:   // Invalidate any thread cacheing or optimization schemes.
duke@435:   static void pd_invalidate_all();
duke@435: 
duke@435: };