Mercurial > hg > truffle
annotate src/share/vm/runtime/threadLocalStorage.hpp @ 12144:d8e99408faad
8009062: poor performance of JNI AttachCurrentThread after fix for 7017193
Summary: don't re-evaluate stack bounds for main thread before install guard page
Reviewed-by: coleenp, dholmes, dlong
| author | dsamersoff |
|---|---|
| date | Thu, 29 Aug 2013 21:48:23 +0400 |
| parents | f08d439fab8c |
| children | bdd155477289 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP |
| 26 #define SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP | |
| 27 | |
| 28 #include "gc_implementation/shared/gcUtil.hpp" | |
| 29 #include "runtime/os.hpp" | |
| 30 #include "utilities/top.hpp" | |
| 31 | |
| 0 | 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 public: | |
| 42 static void set_thread(Thread* thread); | |
| 43 static Thread* get_thread_slow(); | |
| 44 static void invalidate_all() { pd_invalidate_all(); } | |
| 45 | |
| 46 // Machine dependent stuff | |
| 1972 | 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 | |
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65 #ifdef TARGET_OS_ARCH_linux_arm |
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66 # include "threadLS_linux_arm.hpp" |
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67 #endif |
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68 #ifdef TARGET_OS_ARCH_linux_ppc |
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69 # include "threadLS_linux_ppc.hpp" |
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70 #endif |
| 3960 | 71 #ifdef TARGET_OS_ARCH_bsd_x86 |
| 72 # include "threadLS_bsd_x86.hpp" | |
| 73 #endif | |
| 74 #ifdef TARGET_OS_ARCH_bsd_zero | |
| 75 # include "threadLS_bsd_zero.hpp" | |
| 76 #endif | |
| 1972 | 77 |
| 0 | 78 |
| 79 public: | |
| 80 // Accessor | |
| 81 static inline int thread_index() { return _thread_index; } | |
| 82 static inline void set_thread_index(int index) { _thread_index = index; } | |
| 83 | |
| 84 // Initialization | |
| 85 // Called explicitly from VMThread::activate_system instead of init_globals. | |
| 86 static void init(); | |
| 242 | 87 static bool is_initialized(); |
| 0 | 88 |
| 89 private: | |
| 90 static int _thread_index; | |
| 91 | |
| 92 static void generate_code_for_get_thread(); | |
| 93 | |
| 94 // Processor dependent parts of set_thread and initialization | |
| 95 static void pd_set_thread(Thread* thread); | |
| 96 static void pd_init(); | |
| 97 // Invalidate any thread cacheing or optimization schemes. | |
| 98 static void pd_invalidate_all(); | |
| 99 | |
| 100 }; | |
| 1972 | 101 |
| 102 #endif // SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP |