jdk8-mips64-public/hotspot: src/share/vm/runtime/threadLocalStorage.hpp@2b8e28fdf503

     1 /*

     2  * Copyright (c) 1997, 2011, 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 #ifndef SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP

    26 #define SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP

    28 #include "gc_implementation/shared/gcUtil.hpp"

    29 #include "runtime/os.hpp"

    30 #include "utilities/top.hpp"

    32 // Interface for thread local storage

    34 // Fast variant of ThreadLocalStorage::get_thread_slow

    35 extern "C" Thread*   get_thread();

    37 // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86

    38 extern "C" uintptr_t _raw_thread_id();

    40 class ThreadLocalStorage : AllStatic {

    41  public:

    42   static void    set_thread(Thread* thread);

    43   static Thread* get_thread_slow();

    44   static void    invalidate_all() { pd_invalidate_all(); }

    46   // Machine dependent stuff

    47 #ifdef TARGET_OS_ARCH_linux_x86

    48 # include "threadLS_linux_x86.hpp"

    49 #endif

    50 #ifdef TARGET_OS_ARCH_linux_sparc

    51 # include "threadLS_linux_sparc.hpp"

    52 #endif

    53 #ifdef TARGET_OS_ARCH_linux_zero

    54 # include "threadLS_linux_zero.hpp"

    55 #endif

    56 #ifdef TARGET_OS_ARCH_solaris_x86

    57 # include "threadLS_solaris_x86.hpp"

    58 #endif

    59 #ifdef TARGET_OS_ARCH_solaris_sparc

    60 # include "threadLS_solaris_sparc.hpp"

    61 #endif

    62 #ifdef TARGET_OS_ARCH_windows_x86

    63 # include "threadLS_windows_x86.hpp"

    64 #endif

    65 #ifdef TARGET_OS_ARCH_linux_arm

    66 # include "threadLS_linux_arm.hpp"

    67 #endif

    68 #ifdef TARGET_OS_ARCH_linux_ppc

    69 # include "threadLS_linux_ppc.hpp"

    70 #endif

    71 #ifdef TARGET_OS_ARCH_aix_ppc

    72 # include "threadLS_aix_ppc.hpp"

    73 #endif

    74 #ifdef TARGET_OS_ARCH_bsd_x86

    75 # include "threadLS_bsd_x86.hpp"

    76 #endif

    77 #ifdef TARGET_OS_ARCH_bsd_zero

    78 # include "threadLS_bsd_zero.hpp"

    79 #endif

    82  public:

    83   // Accessor

    84   static inline int  thread_index()              { return _thread_index; }

    85   static inline void set_thread_index(int index) { _thread_index = index; }

    87   // Initialization

    88   // Called explicitly from VMThread::activate_system instead of init_globals.

    89   static void init();

    90   static bool is_initialized();

    92  private:

    93   static int     _thread_index;

    95   static void    generate_code_for_get_thread();

    97   // Processor dependent parts of set_thread and initialization

    98   static void pd_set_thread(Thread* thread);

    99   static void pd_init();

   100   // Invalidate any thread cacheing or optimization schemes.

   101   static void pd_invalidate_all();

   103 };

   105 #endif // SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP

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