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annotate src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp @ 1547:fb1a39993f69
6951319: enable solaris builds using Sun Studio 12 update 1
Reviewed-by: kamg, ysr, dholmes, johnc
| author | jcoomes |
|---|---|
| date | Tue, 18 May 2010 11:02:18 -0700 |
| parents | 89e0543e1737 |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 948 | 2 * Copyright 1999-2009 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } | |
| 26 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } | |
| 27 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } | |
| 28 | |
| 29 | |
| 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 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } | |
| 40 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } | |
| 41 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } | |
| 42 | |
| 43 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } | |
| 44 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } | |
| 45 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } | |
| 46 | |
| 47 // For Sun Studio - implementation is in solaris_x86_[32/64].il. | |
| 48 // For gcc - implementation is just below. | |
| 49 | |
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50 // The lock prefix can be omitted for certain instructions on uniprocessors; to |
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51 // facilitate this, os::is_MP() is passed as an additional argument. 64-bit |
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52 // processors are assumed to be multi-threaded and/or multi-core, so the extra |
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53 // argument is unnecessary. |
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54 #ifndef _LP64 |
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55 #define IS_MP_DECL() , int is_mp |
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56 #define IS_MP_ARG() , (int) os::is_MP() |
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57 #else |
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58 #define IS_MP_DECL() |
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59 #define IS_MP_ARG() |
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60 #endif // _LP64 |
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61 |
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62 extern "C" { |
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63 jint _Atomic_add(jint add_value, volatile jint* dest IS_MP_DECL()); |
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64 jint _Atomic_xchg(jint exchange_value, volatile jint* dest); |
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65 jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest, |
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66 jint compare_value IS_MP_DECL()); |
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67 jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest, |
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68 jlong compare_value IS_MP_DECL()); |
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69 } |
| 0 | 70 |
| 71 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
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72 return _Atomic_add(add_value, dest IS_MP_ARG()); |
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73 } |
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74 |
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75 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { |
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76 return _Atomic_xchg(exchange_value, dest); |
| 0 | 77 } |
| 78 | |
| 79 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
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80 return _Atomic_cmpxchg(exchange_value, dest, compare_value IS_MP_ARG()); |
| 0 | 81 } |
| 82 | |
| 83 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
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84 return _Atomic_cmpxchg_long(exchange_value, dest, compare_value IS_MP_ARG()); |
| 0 | 85 } |
| 86 | |
| 87 | |
| 88 #ifdef AMD64 | |
| 89 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } | |
| 90 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
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91 extern "C" jlong _Atomic_add_long(jlong add_value, volatile jlong* dest); |
| 0 | 92 extern "C" jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest); |
| 93 | |
| 94 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
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95 return (intptr_t)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest); |
| 0 | 96 } |
| 97 | |
| 98 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
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99 return (void*)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest); |
| 0 | 100 } |
| 101 | |
| 102 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
| 103 return (intptr_t)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest); | |
| 104 } | |
| 105 | |
| 106 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
| 107 return (void*)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest); | |
| 108 } | |
| 109 | |
| 110 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
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111 return (intptr_t)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); |
| 0 | 112 } |
| 113 | |
| 114 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
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115 return (void*)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); |
| 0 | 116 } |
| 117 | |
| 894 | 118 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
| 119 | |
| 0 | 120 #else // !AMD64 |
| 121 | |
| 122 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
| 123 return (intptr_t)add((jint)add_value, (volatile jint*)dest); | |
| 124 } | |
| 125 | |
| 126 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
| 127 return (void*)add((jint)add_value, (volatile jint*)dest); | |
| 128 } | |
| 129 | |
| 130 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
| 131 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); | |
| 132 } | |
| 133 | |
| 134 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
| 135 return (void*)xchg((jint)exchange_value, (volatile jint*)dest); | |
| 136 } | |
| 137 | |
| 138 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
| 139 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
| 140 } | |
| 141 | |
| 142 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
| 143 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
| 144 } | |
| 894 | 145 |
| 146 extern "C" void _Atomic_load_long(volatile jlong* src, volatile jlong* dst); | |
| 147 | |
| 148 inline jlong Atomic::load(volatile jlong* src) { | |
| 149 volatile jlong dest; | |
| 150 _Atomic_load_long(src, &dest); | |
| 151 return dest; | |
| 152 } | |
| 153 | |
| 0 | 154 #endif // AMD64 |
| 155 | |
| 156 #ifdef _GNU_SOURCE | |
| 157 // Add a lock prefix to an instruction on an MP machine | |
| 158 #define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: " | |
| 159 | |
| 160 extern "C" { | |
| 161 inline jint _Atomic_add(jint add_value, volatile jint* dest, int mp) { | |
| 162 jint addend = add_value; | |
| 163 __asm__ volatile ( LOCK_IF_MP(%3) "xaddl %0,(%2)" | |
| 164 : "=r" (addend) | |
| 165 : "0" (addend), "r" (dest), "r" (mp) | |
| 166 : "cc", "memory"); | |
| 167 return addend + add_value; | |
| 168 } | |
| 169 | |
| 170 #ifdef AMD64 | |
| 171 inline jlong _Atomic_add_long(jlong add_value, volatile jlong* dest, int mp) { | |
| 172 intptr_t addend = add_value; | |
| 173 __asm__ __volatile__ (LOCK_IF_MP(%3) "xaddq %0,(%2)" | |
| 174 : "=r" (addend) | |
| 175 : "0" (addend), "r" (dest), "r" (mp) | |
| 176 : "cc", "memory"); | |
| 177 return addend + add_value; | |
| 178 } | |
| 179 | |
| 180 inline jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest) { | |
| 181 __asm__ __volatile__ ("xchgq (%2),%0" | |
| 182 : "=r" (exchange_value) | |
| 183 : "0" (exchange_value), "r" (dest) | |
| 184 : "memory"); | |
| 185 return exchange_value; | |
| 186 } | |
| 187 | |
| 188 #endif // AMD64 | |
| 189 | |
| 190 inline jint _Atomic_xchg(jint exchange_value, volatile jint* dest) { | |
| 191 __asm__ __volatile__ ("xchgl (%2),%0" | |
| 192 : "=r" (exchange_value) | |
| 193 : "0" (exchange_value), "r" (dest) | |
| 194 : "memory"); | |
| 195 return exchange_value; | |
| 196 } | |
| 197 | |
| 198 inline jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest, jint compare_value, int mp) { | |
| 199 __asm__ volatile (LOCK_IF_MP(%4) "cmpxchgl %1,(%3)" | |
| 200 : "=a" (exchange_value) | |
| 201 : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) | |
| 202 : "cc", "memory"); | |
| 203 return exchange_value; | |
| 204 } | |
| 205 | |
| 206 // This is the interface to the atomic instruction in solaris_i486.s. | |
| 207 jlong _Atomic_cmpxchg_long_gcc(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp); | |
| 208 | |
| 209 inline jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp) { | |
| 210 #ifdef AMD64 | |
| 211 __asm__ __volatile__ (LOCK_IF_MP(%4) "cmpxchgq %1,(%3)" | |
| 212 : "=a" (exchange_value) | |
| 213 : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) | |
| 214 : "cc", "memory"); | |
| 215 return exchange_value; | |
| 216 #else | |
| 217 return _Atomic_cmpxchg_long_gcc(exchange_value, dest, compare_value, os::is_MP()); | |
| 218 | |
| 219 #if 0 | |
| 220 // The code below does not work presumably because of the bug in gcc | |
| 221 // The error message says: | |
| 222 // can't find a register in class BREG while reloading asm | |
| 223 // However I want to save this code and later replace _Atomic_cmpxchg_long_gcc | |
| 224 // with such inline asm code: | |
| 225 | |
| 226 volatile jlong_accessor evl, cvl, rv; | |
| 227 evl.long_value = exchange_value; | |
| 228 cvl.long_value = compare_value; | |
| 229 int mp = os::is_MP(); | |
| 230 | |
| 231 __asm__ volatile ("cmp $0, %%esi\n\t" | |
| 232 "je 1f \n\t" | |
| 233 "lock\n\t" | |
| 234 "1: cmpxchg8b (%%edi)\n\t" | |
| 235 : "=a"(cvl.words[0]), "=d"(cvl.words[1]) | |
| 236 : "a"(cvl.words[0]), "d"(cvl.words[1]), | |
| 237 "b"(evl.words[0]), "c"(evl.words[1]), | |
| 238 "D"(dest), "S"(mp) | |
| 239 : "cc", "memory"); | |
| 240 return cvl.long_value; | |
| 241 #endif // if 0 | |
| 242 #endif // AMD64 | |
| 243 } | |
| 244 } | |
| 245 #undef LOCK_IF_MP | |
| 246 | |
| 247 #endif // _GNU_SOURCE |