1 /*
2 * Copyright (c) 1999, 2005, 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 // Implementation of class atomic
26
27 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
28 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
29 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
30 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
31 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
32
33 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
34 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
35 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
36 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
37 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
38
39
40 // Adding a lock prefix to an instruction on MP machine
41 #define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: "
42
43 inline jint Atomic::add (jint add_value, volatile jint* dest) {
44 jint addend = add_value;
176 inline void Atomic::dec_ptr(volatile intptr_t* dest) {
177 dec((volatile jint*)dest);
178 }
179
180 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
181 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest);
182 }
183
184 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) {
185 return _Atomic_cmpxchg_long(exchange_value, dest, compare_value, os::is_MP());
186 }
187
188 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
189 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
190 }
191
192 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
193 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
194 }
195 #endif // AMD64
|
1 /*
2 * Copyright (c) 1999, 2010, 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 OS_CPU_LINUX_X86_VM_ATOMIC_LINUX_X86_INLINE_HPP
26 #define OS_CPU_LINUX_X86_VM_ATOMIC_LINUX_X86_INLINE_HPP
27
28 #include "orderAccess_linux_x86.inline.hpp"
29 #include "runtime/atomic.hpp"
30 #include "runtime/os.hpp"
31 #include "vm_version_x86.hpp"
32
33 // Implementation of class atomic
34
35 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
36 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
37 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
38 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
39 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
40
41 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
42 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
43 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
44 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
45 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
46
47
48 // Adding a lock prefix to an instruction on MP machine
49 #define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: "
50
51 inline jint Atomic::add (jint add_value, volatile jint* dest) {
52 jint addend = add_value;
184 inline void Atomic::dec_ptr(volatile intptr_t* dest) {
185 dec((volatile jint*)dest);
186 }
187
188 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
189 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest);
190 }
191
192 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) {
193 return _Atomic_cmpxchg_long(exchange_value, dest, compare_value, os::is_MP());
194 }
195
196 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
197 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
198 }
199
200 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
201 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
202 }
203 #endif // AMD64
204
205 #endif // OS_CPU_LINUX_X86_VM_ATOMIC_LINUX_X86_INLINE_HPP
|