Mercurial > hg > truffle
annotate src/os_cpu/linux_x86/vm/atomic_linux_x86.inline.hpp @ 4191:6cb97f648859
Removed tail call node and opcode (=> must be moved to the truffle project).
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 03 Jan 2012 15:17:35 +0100 |
parents | 4fc084dac61e |
children | 63e54c37ac64 |
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0 | 1 /* |
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2 * Copyright (c) 1999, 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_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 | |
0 | 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; | |
53 int mp = os::is_MP(); | |
54 __asm__ volatile ( LOCK_IF_MP(%3) "xaddl %0,(%2)" | |
55 : "=r" (addend) | |
56 : "0" (addend), "r" (dest), "r" (mp) | |
57 : "cc", "memory"); | |
58 return addend + add_value; | |
59 } | |
60 | |
61 inline void Atomic::inc (volatile jint* dest) { | |
62 int mp = os::is_MP(); | |
63 __asm__ volatile (LOCK_IF_MP(%1) "addl $1,(%0)" : | |
64 : "r" (dest), "r" (mp) : "cc", "memory"); | |
65 } | |
66 | |
67 inline void Atomic::inc_ptr(volatile void* dest) { | |
68 inc_ptr((volatile intptr_t*)dest); | |
69 } | |
70 | |
71 inline void Atomic::dec (volatile jint* dest) { | |
72 int mp = os::is_MP(); | |
73 __asm__ volatile (LOCK_IF_MP(%1) "subl $1,(%0)" : | |
74 : "r" (dest), "r" (mp) : "cc", "memory"); | |
75 } | |
76 | |
77 inline void Atomic::dec_ptr(volatile void* dest) { | |
78 dec_ptr((volatile intptr_t*)dest); | |
79 } | |
80 | |
81 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
82 __asm__ volatile ( "xchgl (%2),%0" | |
83 : "=r" (exchange_value) | |
84 : "0" (exchange_value), "r" (dest) | |
85 : "memory"); | |
86 return exchange_value; | |
87 } | |
88 | |
89 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
90 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
91 } | |
92 | |
93 | |
94 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
95 int mp = os::is_MP(); | |
96 __asm__ volatile (LOCK_IF_MP(%4) "cmpxchgl %1,(%3)" | |
97 : "=a" (exchange_value) | |
98 : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) | |
99 : "cc", "memory"); | |
100 return exchange_value; | |
101 } | |
102 | |
103 #ifdef AMD64 | |
104 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } | |
105 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
106 | |
107 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
108 intptr_t addend = add_value; | |
109 bool mp = os::is_MP(); | |
110 __asm__ __volatile__ (LOCK_IF_MP(%3) "xaddq %0,(%2)" | |
111 : "=r" (addend) | |
112 : "0" (addend), "r" (dest), "r" (mp) | |
113 : "cc", "memory"); | |
114 return addend + add_value; | |
115 } | |
116 | |
117 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
118 return (void*)add_ptr(add_value, (volatile intptr_t*)dest); | |
119 } | |
120 | |
121 inline void Atomic::inc_ptr(volatile intptr_t* dest) { | |
122 bool mp = os::is_MP(); | |
123 __asm__ __volatile__ (LOCK_IF_MP(%1) "addq $1,(%0)" | |
124 : | |
125 : "r" (dest), "r" (mp) | |
126 : "cc", "memory"); | |
127 } | |
128 | |
129 inline void Atomic::dec_ptr(volatile intptr_t* dest) { | |
130 bool mp = os::is_MP(); | |
131 __asm__ __volatile__ (LOCK_IF_MP(%1) "subq $1,(%0)" | |
132 : | |
133 : "r" (dest), "r" (mp) | |
134 : "cc", "memory"); | |
135 } | |
136 | |
137 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
138 __asm__ __volatile__ ("xchgq (%2),%0" | |
139 : "=r" (exchange_value) | |
140 : "0" (exchange_value), "r" (dest) | |
141 : "memory"); | |
142 return exchange_value; | |
143 } | |
144 | |
145 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
146 bool mp = os::is_MP(); | |
147 __asm__ __volatile__ (LOCK_IF_MP(%4) "cmpxchgq %1,(%3)" | |
148 : "=a" (exchange_value) | |
149 : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) | |
150 : "cc", "memory"); | |
151 return exchange_value; | |
152 } | |
153 | |
154 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
155 return (intptr_t)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); | |
156 } | |
157 | |
158 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
159 return (void*)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); | |
160 } | |
161 | |
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162 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
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163 |
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164 #else // !AMD64 |
0 | 165 |
166 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
167 return (intptr_t)Atomic::add((jint)add_value, (volatile jint*)dest); | |
168 } | |
169 | |
170 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
171 return (void*)Atomic::add((jint)add_value, (volatile jint*)dest); | |
172 } | |
173 | |
174 | |
175 inline void Atomic::inc_ptr(volatile intptr_t* dest) { | |
176 inc((volatile jint*)dest); | |
177 } | |
178 | |
179 inline void Atomic::dec_ptr(volatile intptr_t* dest) { | |
180 dec((volatile jint*)dest); | |
181 } | |
182 | |
183 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
184 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); | |
185 } | |
186 | |
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187 extern "C" { |
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188 // defined in linux_x86.s |
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189 jlong _Atomic_cmpxchg_long(jlong, volatile jlong*, jlong, bool); |
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190 void _Atomic_move_long(volatile jlong* src, volatile jlong* dst); |
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191 } |
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192 |
0 | 193 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { |
194 return _Atomic_cmpxchg_long(exchange_value, dest, compare_value, os::is_MP()); | |
195 } | |
196 | |
197 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
198 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
199 } | |
200 | |
201 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
202 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
203 } | |
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204 |
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205 inline jlong Atomic::load(volatile jlong* src) { |
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206 volatile jlong dest; |
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207 _Atomic_move_long(src, &dest); |
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208 return dest; |
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209 } |
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210 |
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211 inline void Atomic::store(jlong store_value, jlong* dest) { |
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212 _Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest); |
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213 } |
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214 |
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215 inline void Atomic::store(jlong store_value, volatile jlong* dest) { |
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216 _Atomic_move_long((volatile jlong*)&store_value, dest); |
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217 } |
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218 |
0 | 219 #endif // AMD64 |
1972 | 220 |
221 #endif // OS_CPU_LINUX_X86_VM_ATOMIC_LINUX_X86_INLINE_HPP |