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annotate src/os_cpu/solaris_x86/vm/orderAccess_solaris_x86.inline.hpp @ 5592:d64507a295cc
Merge.
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 13 Jun 2012 19:11:20 +0200 |
parents | 4fc084dac61e |
children | cd3d6a6b95d9 |
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0 | 1 /* |
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2 * Copyright (c) 2003, 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 OS_CPU_SOLARIS_X86_VM_ORDERACCESS_SOLARIS_X86_INLINE_HPP |
26 #define OS_CPU_SOLARIS_X86_VM_ORDERACCESS_SOLARIS_X86_INLINE_HPP | |
27 | |
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28 #include "runtime/atomic.hpp" |
1972 | 29 #include "runtime/orderAccess.hpp" |
30 #include "vm_version_x86.hpp" | |
31 | |
0 | 32 // Implementation of class OrderAccess. |
33 | |
34 // For Sun Studio - implementation is in solaris_i486.il. | |
35 // For gcc - implementation is just below. | |
36 extern "C" void _OrderAccess_acquire(); | |
37 extern "C" void _OrderAccess_fence(); | |
38 | |
39 inline void OrderAccess::loadload() { acquire(); } | |
40 inline void OrderAccess::storestore() { release(); } | |
41 inline void OrderAccess::loadstore() { acquire(); } | |
42 inline void OrderAccess::storeload() { fence(); } | |
43 | |
44 inline void OrderAccess::acquire() { | |
45 _OrderAccess_acquire(); | |
46 | |
47 } | |
48 | |
49 inline void OrderAccess::release() { | |
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50 // Avoid hitting the same cache-line from |
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51 // different threads. |
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52 volatile jint local_dummy = 0; |
0 | 53 } |
54 | |
55 inline void OrderAccess::fence() { | |
56 if (os::is_MP()) { | |
57 _OrderAccess_fence(); | |
58 } | |
59 } | |
60 | |
61 #ifdef _GNU_SOURCE | |
62 | |
63 extern "C" { | |
64 inline void _OrderAccess_acquire() { | |
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65 volatile intptr_t local_dummy; |
0 | 66 #ifdef AMD64 |
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67 __asm__ volatile ("movq 0(%%rsp), %0" : "=r" (local_dummy) : : "memory"); |
0 | 68 #else |
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69 __asm__ volatile ("movl 0(%%esp),%0" : "=r" (local_dummy) : : "memory"); |
0 | 70 #endif // AMD64 |
71 } | |
72 inline void _OrderAccess_fence() { | |
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73 // Always use locked addl since mfence is sometimes expensive |
0 | 74 __asm__ volatile ("lock; addl $0,0(%%esp)" : : : "cc", "memory"); |
75 } | |
76 | |
77 } | |
78 | |
79 #endif // GNU_SOURCE | |
80 | |
81 inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return *p; } | |
82 inline jshort OrderAccess::load_acquire(volatile jshort* p) { return *p; } | |
83 inline jint OrderAccess::load_acquire(volatile jint* p) { return *p; } | |
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84 inline jlong OrderAccess::load_acquire(volatile jlong* p) { return Atomic::load(p); } |
0 | 85 inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return *p; } |
86 inline jushort OrderAccess::load_acquire(volatile jushort* p) { return *p; } | |
87 inline juint OrderAccess::load_acquire(volatile juint* p) { return *p; } | |
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88 inline julong OrderAccess::load_acquire(volatile julong* p) { return Atomic::load((volatile jlong*)p); } |
0 | 89 inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return *p; } |
90 inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return *p; } | |
91 | |
92 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return *p; } | |
93 inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return *(void* volatile *)p; } | |
94 inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; } | |
95 | |
96 inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { *p = v; } | |
97 inline void OrderAccess::release_store(volatile jshort* p, jshort v) { *p = v; } | |
98 inline void OrderAccess::release_store(volatile jint* p, jint v) { *p = v; } | |
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99 inline void OrderAccess::release_store(volatile jlong* p, jlong v) { Atomic::store(v, p); } |
0 | 100 inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { *p = v; } |
101 inline void OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; } | |
102 inline void OrderAccess::release_store(volatile juint* p, juint v) { *p = v; } | |
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103 inline void OrderAccess::release_store(volatile julong* p, julong v) { Atomic::store((jlong)v, (volatile jlong*)p); } |
0 | 104 inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { *p = v; } |
105 inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; } | |
106 | |
107 inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; } | |
108 inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { *(void* volatile *)p = v; } | |
109 | |
110 inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; fence(); } | |
111 inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; fence(); } | |
112 inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; fence(); } | |
113 inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; fence(); } | |
114 inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; fence(); } | |
115 inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); } | |
116 inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; fence(); } | |
117 inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; fence(); } | |
118 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); } | |
119 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); } | |
120 | |
121 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); } | |
122 inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); } | |
123 | |
124 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { *p = v; fence(); } | |
125 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { *p = v; fence(); } | |
126 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { *p = v; fence(); } | |
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127 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { release_store(p, v); fence(); } |
0 | 128 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { *p = v; fence(); } |
129 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); } | |
130 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { *p = v; fence(); } | |
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131 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { release_store(p, v); fence(); } |
0 | 132 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); } |
133 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); } | |
134 | |
135 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); } | |
136 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { *(void* volatile *)p = v; fence(); } | |
1972 | 137 |
138 #endif // OS_CPU_SOLARIS_X86_VM_ORDERACCESS_SOLARIS_X86_INLINE_HPP |