Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/threadLocalStorage.cpp @ 17794:3514ee402842
8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
Reviewed-by: dholmes, kvn
Contributed-by: martin.doerr@sap.com
author | goetz |
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date | Thu, 16 Jan 2014 14:25:51 +0100 |
parents | f34d701e952e |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
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26 #include "runtime/thread.inline.hpp" |
1972 | 27 #include "runtime/threadLocalStorage.hpp" |
28 #ifdef TARGET_OS_FAMILY_linux | |
29 # include "os_linux.inline.hpp" | |
30 #endif | |
31 #ifdef TARGET_OS_FAMILY_solaris | |
32 # include "os_solaris.inline.hpp" | |
33 #endif | |
34 #ifdef TARGET_OS_FAMILY_windows | |
35 # include "os_windows.inline.hpp" | |
36 #endif | |
3960 | 37 #ifdef TARGET_OS_FAMILY_bsd |
38 # include "os_bsd.inline.hpp" | |
39 #endif | |
0 | 40 |
41 // static member initialization | |
42 int ThreadLocalStorage::_thread_index = -1; | |
43 | |
44 Thread* ThreadLocalStorage::get_thread_slow() { | |
45 return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index()); | |
46 } | |
47 | |
48 void ThreadLocalStorage::set_thread(Thread* thread) { | |
49 pd_set_thread(thread); | |
50 | |
51 // The following ensure that any optimization tricks we have tried | |
52 // did not backfire on us: | |
53 guarantee(get_thread() == thread, "must be the same thread, quickly"); | |
54 guarantee(get_thread_slow() == thread, "must be the same thread, slowly"); | |
55 } | |
56 | |
57 void ThreadLocalStorage::init() { | |
242 | 58 assert(!is_initialized(), |
59 "More than one attempt to initialize threadLocalStorage"); | |
0 | 60 pd_init(); |
61 set_thread_index(os::allocate_thread_local_storage()); | |
62 generate_code_for_get_thread(); | |
63 } | |
242 | 64 |
65 bool ThreadLocalStorage::is_initialized() { | |
66 return (thread_index() != -1); | |
67 } |