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 #pragma warning(disable: 4035) // Disables warnings reporting missing return statement
26
27 // Implementation of class OrderAccess.
28
29 inline void OrderAccess::loadload() { acquire(); }
30 inline void OrderAccess::storestore() { release(); }
31 inline void OrderAccess::loadstore() { acquire(); }
32 inline void OrderAccess::storeload() { fence(); }
33
34 inline void OrderAccess::acquire() {
35 #ifndef AMD64
36 __asm {
37 mov eax, dword ptr [esp];
38 }
39 #endif // !AMD64
40 }
41
42 inline void OrderAccess::release() {
43 // A volatile store has release semantics.
44 volatile jint local_dummy = 0;
191 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); }
192 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
193
194 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) {
195 #ifdef AMD64
196 *p = v; fence();
197 #else
198 release_store_fence((volatile jint*)p, (jint)v);
199 #endif // AMD64
200 }
201
202 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) {
203 #ifdef AMD64
204 *(void* volatile *)p = v; fence();
205 #else
206 release_store_fence((volatile jint*)p, (jint)v);
207 #endif // AMD64
208 }
209
210 #pragma warning(default: 4035) // Enables warnings reporting missing return statement
|
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 OS_CPU_WINDOWS_X86_VM_ORDERACCESS_WINDOWS_X86_INLINE_HPP
26 #define OS_CPU_WINDOWS_X86_VM_ORDERACCESS_WINDOWS_X86_INLINE_HPP
27
28 #include "runtime/orderAccess.hpp"
29 #include "vm_version_x86.hpp"
30
31 #pragma warning(disable: 4035) // Disables warnings reporting missing return statement
32
33 // Implementation of class OrderAccess.
34
35 inline void OrderAccess::loadload() { acquire(); }
36 inline void OrderAccess::storestore() { release(); }
37 inline void OrderAccess::loadstore() { acquire(); }
38 inline void OrderAccess::storeload() { fence(); }
39
40 inline void OrderAccess::acquire() {
41 #ifndef AMD64
42 __asm {
43 mov eax, dword ptr [esp];
44 }
45 #endif // !AMD64
46 }
47
48 inline void OrderAccess::release() {
49 // A volatile store has release semantics.
50 volatile jint local_dummy = 0;
197 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); }
198 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
199
200 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) {
201 #ifdef AMD64
202 *p = v; fence();
203 #else
204 release_store_fence((volatile jint*)p, (jint)v);
205 #endif // AMD64
206 }
207
208 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) {
209 #ifdef AMD64
210 *(void* volatile *)p = v; fence();
211 #else
212 release_store_fence((volatile jint*)p, (jint)v);
213 #endif // AMD64
214 }
215
216 #pragma warning(default: 4035) // Enables warnings reporting missing return statement
217
218 #endif // OS_CPU_WINDOWS_X86_VM_ORDERACCESS_WINDOWS_X86_INLINE_HPP
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