Mercurial > hg > truffle
annotate src/os_cpu/linux_x86/vm/atomic_linux_x86.inline.hpp @ 1767:dee553c74493
Merge
author | never |
---|---|
date | Wed, 01 Sep 2010 00:40:05 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
2 * Copyright (c) 1999, 2005, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
0 | 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; | |
45 int mp = os::is_MP(); | |
46 __asm__ volatile ( LOCK_IF_MP(%3) "xaddl %0,(%2)" | |
47 : "=r" (addend) | |
48 : "0" (addend), "r" (dest), "r" (mp) | |
49 : "cc", "memory"); | |
50 return addend + add_value; | |
51 } | |
52 | |
53 inline void Atomic::inc (volatile jint* dest) { | |
54 int mp = os::is_MP(); | |
55 __asm__ volatile (LOCK_IF_MP(%1) "addl $1,(%0)" : | |
56 : "r" (dest), "r" (mp) : "cc", "memory"); | |
57 } | |
58 | |
59 inline void Atomic::inc_ptr(volatile void* dest) { | |
60 inc_ptr((volatile intptr_t*)dest); | |
61 } | |
62 | |
63 inline void Atomic::dec (volatile jint* dest) { | |
64 int mp = os::is_MP(); | |
65 __asm__ volatile (LOCK_IF_MP(%1) "subl $1,(%0)" : | |
66 : "r" (dest), "r" (mp) : "cc", "memory"); | |
67 } | |
68 | |
69 inline void Atomic::dec_ptr(volatile void* dest) { | |
70 dec_ptr((volatile intptr_t*)dest); | |
71 } | |
72 | |
73 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
74 __asm__ volatile ( "xchgl (%2),%0" | |
75 : "=r" (exchange_value) | |
76 : "0" (exchange_value), "r" (dest) | |
77 : "memory"); | |
78 return exchange_value; | |
79 } | |
80 | |
81 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
82 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
83 } | |
84 | |
85 | |
86 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
87 int mp = os::is_MP(); | |
88 __asm__ volatile (LOCK_IF_MP(%4) "cmpxchgl %1,(%3)" | |
89 : "=a" (exchange_value) | |
90 : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) | |
91 : "cc", "memory"); | |
92 return exchange_value; | |
93 } | |
94 | |
95 extern "C" { | |
96 // defined in linux_x86.s | |
97 jlong _Atomic_cmpxchg_long(jlong, volatile jlong*, jlong, bool); | |
98 } | |
99 | |
100 #ifdef AMD64 | |
101 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } | |
102 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
103 | |
104 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
105 intptr_t addend = add_value; | |
106 bool mp = os::is_MP(); | |
107 __asm__ __volatile__ (LOCK_IF_MP(%3) "xaddq %0,(%2)" | |
108 : "=r" (addend) | |
109 : "0" (addend), "r" (dest), "r" (mp) | |
110 : "cc", "memory"); | |
111 return addend + add_value; | |
112 } | |
113 | |
114 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
115 return (void*)add_ptr(add_value, (volatile intptr_t*)dest); | |
116 } | |
117 | |
118 inline void Atomic::inc_ptr(volatile intptr_t* dest) { | |
119 bool mp = os::is_MP(); | |
120 __asm__ __volatile__ (LOCK_IF_MP(%1) "addq $1,(%0)" | |
121 : | |
122 : "r" (dest), "r" (mp) | |
123 : "cc", "memory"); | |
124 } | |
125 | |
126 inline void Atomic::dec_ptr(volatile intptr_t* dest) { | |
127 bool mp = os::is_MP(); | |
128 __asm__ __volatile__ (LOCK_IF_MP(%1) "subq $1,(%0)" | |
129 : | |
130 : "r" (dest), "r" (mp) | |
131 : "cc", "memory"); | |
132 } | |
133 | |
134 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
135 __asm__ __volatile__ ("xchgq (%2),%0" | |
136 : "=r" (exchange_value) | |
137 : "0" (exchange_value), "r" (dest) | |
138 : "memory"); | |
139 return exchange_value; | |
140 } | |
141 | |
142 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
143 bool mp = os::is_MP(); | |
144 __asm__ __volatile__ (LOCK_IF_MP(%4) "cmpxchgq %1,(%3)" | |
145 : "=a" (exchange_value) | |
146 : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) | |
147 : "cc", "memory"); | |
148 return exchange_value; | |
149 } | |
150 | |
151 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
152 return (intptr_t)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); | |
153 } | |
154 | |
155 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
156 return (void*)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); | |
157 } | |
158 | |
159 #else | |
160 //inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } | |
161 //inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
162 | |
163 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
164 return (intptr_t)Atomic::add((jint)add_value, (volatile jint*)dest); | |
165 } | |
166 | |
167 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
168 return (void*)Atomic::add((jint)add_value, (volatile jint*)dest); | |
169 } | |
170 | |
171 | |
172 inline void Atomic::inc_ptr(volatile intptr_t* dest) { | |
173 inc((volatile jint*)dest); | |
174 } | |
175 | |
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 |