Tue, 15 Mar 2011 06:35:10 -0700
7024234: 2/3 jvmti tests fail assert(!_oops_are_stale) failed: oops are stale on Win-AMD64
Summary: Move initialization of the '_instance' field to avoid race with ServiceThread start.
Reviewed-by: dholmes, kamg, never, dsamersoff, ysr, coleenp, acorn
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "runtime/threadLocalStorage.hpp" |
stefank@2314 | 27 | #ifdef TARGET_OS_FAMILY_linux |
stefank@2314 | 28 | # include "os_linux.inline.hpp" |
stefank@2314 | 29 | # include "thread_linux.inline.hpp" |
stefank@2314 | 30 | #endif |
stefank@2314 | 31 | #ifdef TARGET_OS_FAMILY_solaris |
stefank@2314 | 32 | # include "os_solaris.inline.hpp" |
stefank@2314 | 33 | # include "thread_solaris.inline.hpp" |
stefank@2314 | 34 | #endif |
stefank@2314 | 35 | #ifdef TARGET_OS_FAMILY_windows |
stefank@2314 | 36 | # include "os_windows.inline.hpp" |
stefank@2314 | 37 | # include "thread_windows.inline.hpp" |
stefank@2314 | 38 | #endif |
duke@435 | 39 | |
duke@435 | 40 | // static member initialization |
duke@435 | 41 | int ThreadLocalStorage::_thread_index = -1; |
duke@435 | 42 | |
duke@435 | 43 | Thread* ThreadLocalStorage::get_thread_slow() { |
duke@435 | 44 | return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index()); |
duke@435 | 45 | } |
duke@435 | 46 | |
duke@435 | 47 | void ThreadLocalStorage::set_thread(Thread* thread) { |
duke@435 | 48 | pd_set_thread(thread); |
duke@435 | 49 | |
duke@435 | 50 | // The following ensure that any optimization tricks we have tried |
duke@435 | 51 | // did not backfire on us: |
duke@435 | 52 | guarantee(get_thread() == thread, "must be the same thread, quickly"); |
duke@435 | 53 | guarantee(get_thread_slow() == thread, "must be the same thread, slowly"); |
duke@435 | 54 | } |
duke@435 | 55 | |
duke@435 | 56 | void ThreadLocalStorage::init() { |
kamg@677 | 57 | assert(!is_initialized(), |
kamg@677 | 58 | "More than one attempt to initialize threadLocalStorage"); |
duke@435 | 59 | pd_init(); |
duke@435 | 60 | set_thread_index(os::allocate_thread_local_storage()); |
duke@435 | 61 | generate_code_for_get_thread(); |
duke@435 | 62 | } |
kamg@677 | 63 | |
kamg@677 | 64 | bool ThreadLocalStorage::is_initialized() { |
kamg@677 | 65 | return (thread_index() != -1); |
kamg@677 | 66 | } |