Wed, 06 Jul 2011 13:02:54 -0700
7061225: os::print_cpu_info() should support os-specific data
Reviewed-by: dholmes, never, jwilhelm, kvn
1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
25 #include "precompiled.hpp"
26 #include "runtime/threadLocalStorage.hpp"
27 #ifdef TARGET_OS_FAMILY_linux
28 # include "os_linux.inline.hpp"
29 # include "thread_linux.inline.hpp"
30 #endif
31 #ifdef TARGET_OS_FAMILY_solaris
32 # include "os_solaris.inline.hpp"
33 # include "thread_solaris.inline.hpp"
34 #endif
35 #ifdef TARGET_OS_FAMILY_windows
36 # include "os_windows.inline.hpp"
37 # include "thread_windows.inline.hpp"
38 #endif
40 // static member initialization
41 int ThreadLocalStorage::_thread_index = -1;
43 Thread* ThreadLocalStorage::get_thread_slow() {
44 return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
45 }
47 void ThreadLocalStorage::set_thread(Thread* thread) {
48 pd_set_thread(thread);
50 // The following ensure that any optimization tricks we have tried
51 // did not backfire on us:
52 guarantee(get_thread() == thread, "must be the same thread, quickly");
53 guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
54 }
56 void ThreadLocalStorage::init() {
57 assert(!is_initialized(),
58 "More than one attempt to initialize threadLocalStorage");
59 pd_init();
60 set_thread_index(os::allocate_thread_local_storage());
61 generate_code_for_get_thread();
62 }
64 bool ThreadLocalStorage::is_initialized() {
65 return (thread_index() != -1);
66 }