|
1 /* |
|
2 * Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved. |
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
4 * |
|
5 * This code is free software; you can redistribute it and/or modify it |
|
6 * under the terms of the GNU General Public License version 2 only, as |
|
7 * published by the Free Software Foundation. |
|
8 * |
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT |
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
12 * version 2 for more details (a copy is included in the LICENSE file that |
|
13 * accompanied this code). |
|
14 * |
|
15 * You should have received a copy of the GNU General Public License version |
|
16 * 2 along with this work; if not, write to the Free Software Foundation, |
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
18 * |
|
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or |
|
21 * have any questions. |
|
22 * |
|
23 */ |
|
24 |
|
25 // Interface for thread local storage |
|
26 |
|
27 // Fast variant of ThreadLocalStorage::get_thread_slow |
|
28 extern "C" Thread* get_thread(); |
|
29 |
|
30 // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86 |
|
31 extern "C" uintptr_t _raw_thread_id(); |
|
32 |
|
33 class ThreadLocalStorage : AllStatic { |
|
34 public: |
|
35 static void set_thread(Thread* thread); |
|
36 static Thread* get_thread_slow(); |
|
37 static void invalidate_all() { pd_invalidate_all(); } |
|
38 |
|
39 // Machine dependent stuff |
|
40 #include "incls/_threadLS_pd.hpp.incl" |
|
41 |
|
42 public: |
|
43 // Accessor |
|
44 static inline int thread_index() { return _thread_index; } |
|
45 static inline void set_thread_index(int index) { _thread_index = index; } |
|
46 |
|
47 // Initialization |
|
48 // Called explicitly from VMThread::activate_system instead of init_globals. |
|
49 static void init(); |
|
50 |
|
51 private: |
|
52 static int _thread_index; |
|
53 |
|
54 static void generate_code_for_get_thread(); |
|
55 |
|
56 // Processor dependent parts of set_thread and initialization |
|
57 static void pd_set_thread(Thread* thread); |
|
58 static void pd_init(); |
|
59 // Invalidate any thread cacheing or optimization schemes. |
|
60 static void pd_invalidate_all(); |
|
61 |
|
62 }; |