1 /*
   2  * Copyright (c) 1997, 2015, 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  */
  24 
  25 #ifndef SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP
  26 #define SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP
  27 
  28 #include "gc/shared/gcUtil.hpp"
  29 #include "runtime/os.hpp"
  30 #include "utilities/top.hpp"
  31 
  32 // Interface for thread local storage
  33 
  34 // Fast variant of ThreadLocalStorage::get_thread_slow
  35 extern "C" Thread*   get_thread();
  36 
  37 // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86
  38 extern "C" uintptr_t _raw_thread_id();
  39 
  40 class ThreadLocalStorage : AllStatic {
  41 
  42  // Exported API
  43  public:
  44   static void    set_thread(Thread* thread);
  45   static Thread* get_thread_slow();
  46   static void    invalidate_all() { pd_invalidate_all(); }
  47   static void    init();
  48   static bool    is_initialized();
  49 
  50   // Machine dependent stuff
  51 #ifdef TARGET_OS_ARCH_linux_x86
  52 # include "threadLS_linux_x86.hpp"
  53 #endif
  54 #ifdef TARGET_OS_ARCH_linux_sparc
  55 # include "threadLS_linux_sparc.hpp"
  56 #endif
  57 #ifdef TARGET_OS_ARCH_linux_zero
  58 # include "threadLS_linux_zero.hpp"
  59 #endif
  60 #ifdef TARGET_OS_ARCH_solaris_x86
  61 # include "threadLS_solaris_x86.hpp"
  62 #endif
  63 #ifdef TARGET_OS_ARCH_solaris_sparc
  64 # include "threadLS_solaris_sparc.hpp"
  65 #endif
  66 #ifdef TARGET_OS_ARCH_windows_x86
  67 # include "threadLS_windows_x86.hpp"
  68 #endif
  69 #ifdef TARGET_OS_ARCH_linux_arm
  70 # include "threadLS_linux_arm.hpp"
  71 #endif
  72 #ifdef TARGET_OS_ARCH_linux_ppc
  73 # include "threadLS_linux_ppc.hpp"
  74 #endif
  75 #ifdef TARGET_OS_ARCH_linux_aarch64
  76 # include "threadLS_linux_aarch64.hpp"
  77 #endif
  78 #ifdef TARGET_OS_ARCH_aix_ppc
  79 # include "threadLS_aix_ppc.hpp"
  80 #endif
  81 #ifdef TARGET_OS_ARCH_bsd_x86
  82 # include "threadLS_bsd_x86.hpp"
  83 #endif
  84 #ifdef TARGET_OS_ARCH_bsd_zero
  85 # include "threadLS_bsd_zero.hpp"
  86 #endif
  87 
  88 #ifndef SOLARIS
  89  public:
  90   // Accessor
  91   static inline int  thread_index()              { return _thread_index; }
  92   static inline void set_thread_index(int index) { _thread_index = index; }
  93 





  94  private:
  95   static int     _thread_index;
  96 
  97   static void    generate_code_for_get_thread();
  98 
  99   // Processor dependent parts of set_thread and initialization
 100   static void pd_set_thread(Thread* thread);
 101   static void pd_init();
 102 
 103 #endif // SOLARIS
 104 
 105   // Invalidate any thread cacheing or optimization schemes.
 106   static void pd_invalidate_all();
 107 
 108 };
 109 
 110 #endif // SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP
--- EOF ---