src/share/vm/runtime/threadLocalStorage.cpp

Tue, 26 Apr 2011 14:04:43 -0400

author
coleenp
date
Tue, 26 Apr 2011 14:04:43 -0400
changeset 2804
01147d8aac1d
parent 2314
f95d63e2154a
child 3156
f08d439fab8c
permissions
-rw-r--r--

7009923: JSR 292: VM crash in JavaThread::last_frame
Summary: Handle stack overflow before the first frame is called, by printing out the called method and not walking the stack.
Reviewed-by: dholmes, phh, dsamersoff

     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.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    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 }

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