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src/os_cpu/windows_x86/vm/orderAccess_windows_x86.inline.hpp@126ea7725993 (annotated)

src/os_cpu/windows_x86/vm/orderAccess_windows_x86.inline.hpp

Tue, 03 Aug 2010 08:13:38 -0400

author
bobv
date
Tue, 03 Aug 2010 08:13:38 -0400
changeset 2036
126ea7725993
parent 1907
c18cbe5936b8
child 2066
a6bff45449bc
permissions
-rw-r--r--

6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

duke@435 1 /*
trims@1907 2 * Copyright (c) 2003, 2009, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
duke@435 25 #pragma warning(disable: 4035) // Disables warnings reporting missing return statement
duke@435 26
duke@435 27 // Implementation of class OrderAccess.
duke@435 28
duke@435 29 inline void OrderAccess::loadload() { acquire(); }
duke@435 30 inline void OrderAccess::storestore() { release(); }
duke@435 31 inline void OrderAccess::loadstore() { acquire(); }
duke@435 32 inline void OrderAccess::storeload() { fence(); }
duke@435 33
duke@435 34 inline void OrderAccess::acquire() {
duke@435 35 #ifndef AMD64
duke@435 36 __asm {
duke@435 37 mov eax, dword ptr [esp];
duke@435 38 }
duke@435 39 #endif // !AMD64
duke@435 40 }
duke@435 41
duke@435 42 inline void OrderAccess::release() {
duke@435 43 // A volatile store has release semantics.
duke@435 44 dummy = 0;
duke@435 45 }
duke@435 46
duke@435 47 inline void OrderAccess::fence() {
duke@435 48 #ifdef AMD64
never@1106 49 StubRoutines_fence();
duke@435 50 #else
duke@435 51 if (os::is_MP()) {
duke@435 52 __asm {
duke@435 53 lock add dword ptr [esp], 0;
duke@435 54 }
duke@435 55 }
duke@435 56 #endif // AMD64
duke@435 57 }
duke@435 58
duke@435 59 inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return *p; }
duke@435 60 inline jshort OrderAccess::load_acquire(volatile jshort* p) { return *p; }
duke@435 61 inline jint OrderAccess::load_acquire(volatile jint* p) { return *p; }
duke@435 62 inline jlong OrderAccess::load_acquire(volatile jlong* p) { return *p; }
duke@435 63 inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return *p; }
duke@435 64 inline jushort OrderAccess::load_acquire(volatile jushort* p) { return *p; }
duke@435 65 inline juint OrderAccess::load_acquire(volatile juint* p) { return *p; }
duke@435 66 inline julong OrderAccess::load_acquire(volatile julong* p) { return *p; }
duke@435 67 inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return *p; }
duke@435 68 inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return *p; }
duke@435 69
duke@435 70 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return *p; }
duke@435 71 inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return *(void* volatile *)p; }
duke@435 72 inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; }
duke@435 73
duke@435 74 inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { *p = v; }
duke@435 75 inline void OrderAccess::release_store(volatile jshort* p, jshort v) { *p = v; }
duke@435 76 inline void OrderAccess::release_store(volatile jint* p, jint v) { *p = v; }
duke@435 77 inline void OrderAccess::release_store(volatile jlong* p, jlong v) { *p = v; }
duke@435 78 inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { *p = v; }
duke@435 79 inline void OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; }
duke@435 80 inline void OrderAccess::release_store(volatile juint* p, juint v) { *p = v; }
duke@435 81 inline void OrderAccess::release_store(volatile julong* p, julong v) { *p = v; }
duke@435 82 inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { *p = v; }
duke@435 83 inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; }
duke@435 84
duke@435 85 inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; }
duke@435 86 inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { *(void* volatile *)p = v; }
duke@435 87
duke@435 88 inline void OrderAccess::store_fence(jbyte* p, jbyte v) {
duke@435 89 #ifdef AMD64
duke@435 90 *p = v; fence();
duke@435 91 #else
duke@435 92 __asm {
duke@435 93 mov edx, p;
duke@435 94 mov al, v;
duke@435 95 xchg al, byte ptr [edx];
duke@435 96 }
duke@435 97 #endif // AMD64
duke@435 98 }
duke@435 99
duke@435 100 inline void OrderAccess::store_fence(jshort* p, jshort v) {
duke@435 101 #ifdef AMD64
duke@435 102 *p = v; fence();
duke@435 103 #else
duke@435 104 __asm {
duke@435 105 mov edx, p;
duke@435 106 mov ax, v;
duke@435 107 xchg ax, word ptr [edx];
duke@435 108 }
duke@435 109 #endif // AMD64
duke@435 110 }
duke@435 111
duke@435 112 inline void OrderAccess::store_fence(jint* p, jint v) {
duke@435 113 #ifdef AMD64
duke@435 114 *p = v; fence();
duke@435 115 #else
duke@435 116 __asm {
duke@435 117 mov edx, p;
duke@435 118 mov eax, v;
duke@435 119 xchg eax, dword ptr [edx];
duke@435 120 }
duke@435 121 #endif // AMD64
duke@435 122 }
duke@435 123
duke@435 124 inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; fence(); }
duke@435 125 inline void OrderAccess::store_fence(jubyte* p, jubyte v) { store_fence((jbyte*)p, (jbyte)v); }
duke@435 126 inline void OrderAccess::store_fence(jushort* p, jushort v) { store_fence((jshort*)p, (jshort)v); }
duke@435 127 inline void OrderAccess::store_fence(juint* p, juint v) { store_fence((jint*)p, (jint)v); }
duke@435 128 inline void OrderAccess::store_fence(julong* p, julong v) { store_fence((jlong*)p, (jlong)v); }
duke@435 129 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); }
duke@435 130 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }
duke@435 131
duke@435 132 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) {
duke@435 133 #ifdef AMD64
duke@435 134 *p = v; fence();
duke@435 135 #else
duke@435 136 store_fence((jint*)p, (jint)v);
duke@435 137 #endif // AMD64
duke@435 138 }
duke@435 139
duke@435 140 inline void OrderAccess::store_ptr_fence(void** p, void* v) {
duke@435 141 #ifdef AMD64
duke@435 142 *p = v; fence();
duke@435 143 #else
duke@435 144 store_fence((jint*)p, (jint)v);
duke@435 145 #endif // AMD64
duke@435 146 }
duke@435 147
duke@435 148 // Must duplicate definitions instead of calling store_fence because we don't want to cast away volatile.
duke@435 149 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) {
duke@435 150 #ifdef AMD64
duke@435 151 *p = v; fence();
duke@435 152 #else
duke@435 153 __asm {
duke@435 154 mov edx, p;
duke@435 155 mov al, v;
duke@435 156 xchg al, byte ptr [edx];
duke@435 157 }
duke@435 158 #endif // AMD64
duke@435 159 }
duke@435 160
duke@435 161 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) {
duke@435 162 #ifdef AMD64
duke@435 163 *p = v; fence();
duke@435 164 #else
duke@435 165 __asm {
duke@435 166 mov edx, p;
duke@435 167 mov ax, v;
duke@435 168 xchg ax, word ptr [edx];
duke@435 169 }
duke@435 170 #endif // AMD64
duke@435 171 }
duke@435 172
duke@435 173 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) {
duke@435 174 #ifdef AMD64
duke@435 175 *p = v; fence();
duke@435 176 #else
duke@435 177 __asm {
duke@435 178 mov edx, p;
duke@435 179 mov eax, v;
duke@435 180 xchg eax, dword ptr [edx];
duke@435 181 }
duke@435 182 #endif // AMD64
duke@435 183 }
duke@435 184
duke@435 185 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { *p = v; fence(); }
duke@435 186
duke@435 187 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { release_store_fence((volatile jbyte*)p, (jbyte)v); }
duke@435 188 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { release_store_fence((volatile jshort*)p, (jshort)v); }
duke@435 189 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { release_store_fence((volatile jint*)p, (jint)v); }
duke@435 190 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { release_store_fence((volatile jlong*)p, (jlong)v); }
duke@435 191 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); }
duke@435 192 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
duke@435 193
duke@435 194 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) {
duke@435 195 #ifdef AMD64
duke@435 196 *p = v; fence();
duke@435 197 #else
duke@435 198 release_store_fence((volatile jint*)p, (jint)v);
duke@435 199 #endif // AMD64
duke@435 200 }
duke@435 201
duke@435 202 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) {
duke@435 203 #ifdef AMD64
duke@435 204 *(void* volatile *)p = v; fence();
duke@435 205 #else
duke@435 206 release_store_fence((volatile jint*)p, (jint)v);
duke@435 207 #endif // AMD64
duke@435 208 }
duke@435 209
duke@435 210 #pragma warning(default: 4035) // Enables warnings reporting missing return statement

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