/* * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_HPP #define OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_HPP inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } // For Sun Studio - implementation is in solaris_x86_64.il. extern "C" { jint _Atomic_add(jint add_value, volatile jint* dest); jlong _Atomic_add_long(jlong add_value, volatile jlong* dest); jint _Atomic_xchg(jint exchange_value, volatile jint* dest); jbyte _Atomic_cmpxchg_byte(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value); jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest, jint compare_value); jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest, jlong compare_value); } template struct Atomic::PlatformAdd : Atomic::AddAndFetch > { template D add_and_fetch(I add_value, D volatile* dest) const; }; // Not using add_using_helper; see comment for cmpxchg. template<> template inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const { STATIC_ASSERT(4 == sizeof(I)); STATIC_ASSERT(4 == sizeof(D)); return PrimitiveConversions::cast( _Atomic_add(PrimitiveConversions::cast(add_value), reinterpret_cast(dest))); } // Not using add_using_helper; see comment for cmpxchg. template<> template inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest) const { STATIC_ASSERT(8 == sizeof(I)); STATIC_ASSERT(8 == sizeof(D)); return PrimitiveConversions::cast( _Atomic_add_long(PrimitiveConversions::cast(add_value), reinterpret_cast(dest))); } template<> struct Atomic::PlatformAdd<2>: Atomic::AddShortUsingInt {}; inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { return _Atomic_xchg(exchange_value, dest); } // Not using cmpxchg_using_helper here, because some configurations of // Solaris compiler don't deal well with passing a "defined in .il" // function as an argument. We *should* switch to using gcc-style // inline assembly, but attempting to do so with Studio 12.4 ran into // segfaults. template<> template inline T Atomic::PlatformCmpxchg<1>::operator()(T exchange_value, T volatile* dest, T compare_value, cmpxchg_memory_order order) const { STATIC_ASSERT(1 == sizeof(T)); return PrimitiveConversions::cast( _Atomic_cmpxchg_byte(PrimitiveConversions::cast(exchange_value), reinterpret_cast(dest), PrimitiveConversions::cast(compare_value))); } template<> template inline T Atomic::PlatformCmpxchg<4>::operator()(T exchange_value, T volatile* dest, T compare_value, cmpxchg_memory_order order) const { STATIC_ASSERT(4 == sizeof(T)); return PrimitiveConversions::cast( _Atomic_cmpxchg(PrimitiveConversions::cast(exchange_value), reinterpret_cast(dest), PrimitiveConversions::cast(compare_value))); } template<> template inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value, T volatile* dest, T compare_value, cmpxchg_memory_order order) const { STATIC_ASSERT(8 == sizeof(T)); return PrimitiveConversions::cast( _Atomic_cmpxchg_long(PrimitiveConversions::cast(exchange_value), reinterpret_cast(dest), PrimitiveConversions::cast(compare_value))); } inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } extern "C" jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest); inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { return (intptr_t)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest); } inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { return (void*)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest); } inline jlong Atomic::load(const volatile jlong* src) { return *src; } #endif // OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_HPP