author | kvn |
Mon, 07 Feb 2011 10:34:39 -0800 | |
changeset 8320 | 544210b4dd48 |
parent 7911 | be4352e4480c |
child 15855 | 2ac9ebea17f3 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |
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#define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |
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#include "orderAccess_solaris_sparc.inline.hpp" |
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#include "runtime/atomic.hpp" |
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#include "runtime/os.hpp" |
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#include "vm_version_sparc.hpp" |
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// Implementation of class atomic |
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inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } |
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inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } |
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inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } |
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inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } |
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inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } |
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inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } |
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inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } |
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inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } |
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inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } |
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inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } |
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inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } |
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inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } |
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inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } |
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inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } |
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inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } |
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inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } |
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#ifdef _LP64 |
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inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; } |
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inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; } |
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inline jlong Atomic::load(volatile jlong* src) { return *src; } |
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#else |
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extern "C" void _Atomic_move_long_v8(volatile jlong* src, volatile jlong* dst); |
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extern "C" void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst); |
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inline void Atomic_move_long(volatile jlong* src, volatile jlong* dst) { |
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#ifdef COMPILER2 |
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// Compiler2 does not support v8, it is used only for v9. |
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_Atomic_move_long_v9(src, dst); |
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#else |
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// The branch is cheaper then emulated LDD. |
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if (VM_Version::v9_instructions_work()) { |
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_Atomic_move_long_v9(src, dst); |
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} else { |
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_Atomic_move_long_v8(src, dst); |
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} |
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#endif |
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} |
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inline jlong Atomic::load(volatile jlong* src) { |
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volatile jlong dest; |
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Atomic_move_long(src, &dest); |
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return dest; |
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} |
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inline void Atomic::store(jlong store_value, jlong* dest) { |
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Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest); |
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} |
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inline void Atomic::store(jlong store_value, volatile jlong* dest) { |
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Atomic_move_long((volatile jlong*)&store_value, dest); |
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} |
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#endif |
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#ifdef _GNU_SOURCE |
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inline jint Atomic::add (jint add_value, volatile jint* dest) { |
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intptr_t rv; |
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__asm__ volatile( |
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"1: \n\t" |
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" ld [%2], %%o2\n\t" |
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" add %1, %%o2, %%o3\n\t" |
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" cas [%2], %%o2, %%o3\n\t" |
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" cmp %%o2, %%o3\n\t" |
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" bne 1b\n\t" |
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" nop\n\t" |
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" add %1, %%o2, %0\n\t" |
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: "=r" (rv) |
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: "r" (add_value), "r" (dest) |
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: "memory", "o2", "o3"); |
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return rv; |
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} |
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inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { |
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intptr_t rv; |
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#ifdef _LP64 |
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__asm__ volatile( |
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"1: \n\t" |
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" ldx [%2], %%o2\n\t" |
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" add %0, %%o2, %%o3\n\t" |
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" casx [%2], %%o2, %%o3\n\t" |
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" cmp %%o2, %%o3\n\t" |
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" bne %%xcc, 1b\n\t" |
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" nop\n\t" |
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" add %0, %%o2, %0\n\t" |
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: "=r" (rv) |
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: "r" (add_value), "r" (dest) |
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: "memory", "o2", "o3"); |
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#else //_LP64 |
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__asm__ volatile( |
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"1: \n\t" |
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" ld [%2], %%o2\n\t" |
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" add %1, %%o2, %%o3\n\t" |
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" cas [%2], %%o2, %%o3\n\t" |
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" cmp %%o2, %%o3\n\t" |
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" bne 1b\n\t" |
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" nop\n\t" |
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" add %1, %%o2, %0\n\t" |
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: "=r" (rv) |
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: "r" (add_value), "r" (dest) |
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: "memory", "o2", "o3"); |
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#endif // _LP64 |
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return rv; |
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} |
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inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { |
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return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); |
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} |
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inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { |
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intptr_t rv = exchange_value; |
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__asm__ volatile( |
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" swap [%2],%1\n\t" |
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: "=r" (rv) |
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: "0" (exchange_value) /* we use same register as for return value */, "r" (dest) |
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: "memory"); |
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return rv; |
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} |
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inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { |
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intptr_t rv = exchange_value; |
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#ifdef _LP64 |
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__asm__ volatile( |
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"1:\n\t" |
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" mov %1, %%o3\n\t" |
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" ldx [%2], %%o2\n\t" |
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" casx [%2], %%o2, %%o3\n\t" |
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" cmp %%o2, %%o3\n\t" |
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" bne %%xcc, 1b\n\t" |
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" nop\n\t" |
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" mov %%o2, %0\n\t" |
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: "=r" (rv) |
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: "r" (exchange_value), "r" (dest) |
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: "memory", "o2", "o3"); |
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#else //_LP64 |
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__asm__ volatile( |
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"swap [%2],%1\n\t" |
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: "=r" (rv) |
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: "0" (exchange_value) /* we use same register as for return value */, "r" (dest) |
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: "memory"); |
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#endif // _LP64 |
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return rv; |
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} |
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inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
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return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); |
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} |
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inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { |
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jint rv; |
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__asm__ volatile( |
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" cas [%2], %3, %0" |
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: "=r" (rv) |
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: "0" (exchange_value), "r" (dest), "r" (compare_value) |
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: "memory"); |
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return rv; |
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} |
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inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { |
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#ifdef _LP64 |
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jlong rv; |
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__asm__ volatile( |
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" casx [%2], %3, %0" |
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: "=r" (rv) |
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: "0" (exchange_value), "r" (dest), "r" (compare_value) |
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: "memory"); |
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return rv; |
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#else //_LP64 |
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assert(VM_Version::v9_instructions_work(), "cas only supported on v9"); |
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volatile jlong_accessor evl, cvl, rv; |
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evl.long_value = exchange_value; |
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cvl.long_value = compare_value; |
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__asm__ volatile( |
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" sllx %2, 32, %2\n\t" |
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" srl %3, 0, %3\n\t" |
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" or %2, %3, %2\n\t" |
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" sllx %5, 32, %5\n\t" |
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" srl %6, 0, %6\n\t" |
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" or %5, %6, %5\n\t" |
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" casx [%4], %5, %2\n\t" |
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" srl %2, 0, %1\n\t" |
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" srlx %2, 32, %0\n\t" |
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: "=r" (rv.words[0]), "=r" (rv.words[1]) |
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: "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1]) |
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: "memory"); |
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return rv.long_value; |
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#endif //_LP64 |
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} |
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inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { |
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intptr_t rv; |
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#ifdef _LP64 |
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__asm__ volatile( |
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" casx [%2], %3, %0" |
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: "=r" (rv) |
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: "0" (exchange_value), "r" (dest), "r" (compare_value) |
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: "memory"); |
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#else //_LP64 |
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__asm__ volatile( |
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" cas [%2], %3, %0" |
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: "=r" (rv) |
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: "0" (exchange_value), "r" (dest), "r" (compare_value) |
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: "memory"); |
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#endif // _LP64 |
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return rv; |
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} |
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inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { |
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return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); |
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} |
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||
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#else // _GNU_SOURCE |
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||
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#if defined(COMPILER2) || defined(_LP64) |
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// This is the interface to the atomic instructions in solaris_sparc.il. |
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// It's very messy because we need to support v8 and these instructions |
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// are illegal there. When sparc v8 is dropped, we can drop out lots of |
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// this code. Also compiler2 does not support v8 so the conditional code |
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// omits the instruction set check. |
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extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); |
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extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); |
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extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); |
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extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); |
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extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); |
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extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); |
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extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); |
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inline jint Atomic::add (jint add_value, volatile jint* dest) { |
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return _Atomic_add32(add_value, dest); |
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} |
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inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { |
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#ifdef _LP64 |
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return _Atomic_add64(add_value, dest); |
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#else //_LP64 |
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return _Atomic_add32(add_value, dest); |
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#endif // _LP64 |
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} |
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inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { |
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return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); |
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} |
|
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295 |
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inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { |
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return _Atomic_swap32(exchange_value, dest); |
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} |
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300 |
inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { |
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#ifdef _LP64 |
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return _Atomic_swap64(exchange_value, dest); |
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#else // _LP64 |
|
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return _Atomic_swap32(exchange_value, dest); |
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#endif // _LP64 |
|
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} |
|
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inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
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return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); |
|
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} |
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311 |
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312 |
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313 |
inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { |
|
314 |
return _Atomic_cas32(exchange_value, dest, compare_value); |
|
315 |
} |
|
316 |
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inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { |
|
318 |
#ifdef _LP64 |
|
319 |
// Return 64 bit value in %o0 |
|
320 |
return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); |
|
321 |
#else // _LP64 |
|
322 |
assert (VM_Version::v9_instructions_work(), "only supported on v9"); |
|
323 |
// Return 64 bit value in %o0,%o1 by hand |
|
324 |
return _Atomic_casl(exchange_value, dest, compare_value); |
|
325 |
#endif // _LP64 |
|
326 |
} |
|
327 |
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328 |
inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { |
|
329 |
#ifdef _LP64 |
|
330 |
return _Atomic_cas64(exchange_value, dest, compare_value); |
|
331 |
#else // _LP64 |
|
332 |
return _Atomic_cas32(exchange_value, dest, compare_value); |
|
333 |
#endif // _LP64 |
|
334 |
} |
|
335 |
||
336 |
inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { |
|
337 |
return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); |
|
338 |
} |
|
339 |
||
340 |
||
341 |
#else // _LP64 || COMPILER2 |
|
342 |
||
343 |
||
344 |
// 32-bit compiler1 only |
|
345 |
||
346 |
inline jint Atomic::add (jint add_value, volatile jint* dest) { |
|
347 |
return (*os::atomic_add_func)(add_value, dest); |
|
348 |
} |
|
349 |
||
350 |
inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { |
|
351 |
return (intptr_t)add((jint)add_value, (volatile jint*)dest); |
|
352 |
} |
|
353 |
||
354 |
inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { |
|
355 |
return (void*)add((jint)add_value, (volatile jint*)dest); |
|
356 |
} |
|
357 |
||
358 |
||
359 |
inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { |
|
360 |
return (*os::atomic_xchg_func)(exchange_value, dest); |
|
361 |
} |
|
362 |
||
363 |
inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { |
|
364 |
return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); |
|
365 |
} |
|
366 |
||
367 |
inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
|
368 |
return (void*)xchg((jint)exchange_value, (volatile jint*)dest); |
|
369 |
} |
|
370 |
||
371 |
||
372 |
inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { |
|
373 |
return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); |
|
374 |
} |
|
375 |
||
376 |
inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { |
|
377 |
return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); |
|
378 |
} |
|
379 |
||
380 |
inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { |
|
381 |
return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); |
|
382 |
} |
|
383 |
||
384 |
inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { |
|
385 |
return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); |
|
386 |
} |
|
387 |
||
388 |
#endif // _LP64 || COMPILER2 |
|
389 |
||
390 |
#endif // _GNU_SOURCE |
|
7397 | 391 |
|
392 |
#endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |