diff -r f83e9aebbab4 -r 364a0c517151 hotspot/src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp --- a/hotspot/src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp Sat Sep 10 08:27:40 2016 -0400 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,279 +0,0 @@ -/* - * Copyright (c) 1999, 2014, 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_INLINE_HPP -#define OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP - -#include "runtime/atomic.hpp" -#include "runtime/os.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_[32/64].il. -// For gcc - implementation is just below. - -// The lock prefix can be omitted for certain instructions on uniprocessors; to -// facilitate this, os::is_MP() is passed as an additional argument. 64-bit -// processors are assumed to be multi-threaded and/or multi-core, so the extra -// argument is unnecessary. -#ifndef _LP64 -#define IS_MP_DECL() , int is_mp -#define IS_MP_ARG() , (int) os::is_MP() -#else -#define IS_MP_DECL() -#define IS_MP_ARG() -#endif // _LP64 - -extern "C" { - jint _Atomic_add(jint add_value, volatile jint* dest IS_MP_DECL()); - jint _Atomic_xchg(jint exchange_value, volatile jint* dest); - jbyte _Atomic_cmpxchg_byte(jbyte exchange_value, volatile jbyte* dest, - jbyte compare_value IS_MP_DECL()); - jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest, - jint compare_value IS_MP_DECL()); - jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest, - jlong compare_value IS_MP_DECL()); -} - -inline jint Atomic::add (jint add_value, volatile jint* dest) { - return _Atomic_add(add_value, dest IS_MP_ARG()); -} - -inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { - return _Atomic_xchg(exchange_value, dest); -} - -#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE -inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) { - return _Atomic_cmpxchg_byte(exchange_value, dest, compare_value IS_MP_ARG()); -} - -inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) { - return _Atomic_cmpxchg(exchange_value, dest, compare_value IS_MP_ARG()); -} - -inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) { - return _Atomic_cmpxchg_long(exchange_value, dest, compare_value IS_MP_ARG()); -} - - -#ifdef AMD64 -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_add_long(jlong add_value, volatile jlong* dest); -extern "C" jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest); - -inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { - return (intptr_t)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest); -} - -inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { - return (void*)_Atomic_add_long((jlong)add_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 intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) { - return (intptr_t)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); -} - -inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) { - return (void*)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); -} - -inline jlong Atomic::load(volatile jlong* src) { return *src; } - -#else // !AMD64 - -inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { - return (intptr_t)add((jint)add_value, (volatile jint*)dest); -} - -inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { - return (void*)add((jint)add_value, (volatile jint*)dest); -} - -inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { - return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); -} - -inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { - return (void*)xchg((jint)exchange_value, (volatile jint*)dest); -} - -inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) { - return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value, order); -} - -inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) { - return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value, order); -} - -extern "C" void _Atomic_move_long(volatile jlong* src, volatile jlong* dst); - -inline jlong Atomic::load(volatile jlong* src) { - volatile jlong dest; - _Atomic_move_long(src, &dest); - return dest; -} - -inline void Atomic::store(jlong store_value, jlong* dest) { - _Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest); -} - -inline void Atomic::store(jlong store_value, volatile jlong* dest) { - _Atomic_move_long((volatile jlong*)&store_value, dest); -} - -#endif // AMD64 - -#ifdef _GNU_SOURCE -// Add a lock prefix to an instruction on an MP machine -#define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: " - -extern "C" { - inline jint _Atomic_add(jint add_value, volatile jint* dest, int mp) { - jint addend = add_value; - __asm__ volatile ( LOCK_IF_MP(%3) "xaddl %0,(%2)" - : "=r" (addend) - : "0" (addend), "r" (dest), "r" (mp) - : "cc", "memory"); - return addend + add_value; - } - -#ifdef AMD64 - inline jlong _Atomic_add_long(jlong add_value, volatile jlong* dest, int mp) { - intptr_t addend = add_value; - __asm__ __volatile__ (LOCK_IF_MP(%3) "xaddq %0,(%2)" - : "=r" (addend) - : "0" (addend), "r" (dest), "r" (mp) - : "cc", "memory"); - return addend + add_value; - } - - inline jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest) { - __asm__ __volatile__ ("xchgq (%2),%0" - : "=r" (exchange_value) - : "0" (exchange_value), "r" (dest) - : "memory"); - return exchange_value; - } - -#endif // AMD64 - - inline jint _Atomic_xchg(jint exchange_value, volatile jint* dest) { - __asm__ __volatile__ ("xchgl (%2),%0" - : "=r" (exchange_value) - : "0" (exchange_value), "r" (dest) - : "memory"); - return exchange_value; - } - - inline jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest, jint compare_value, int mp) { - __asm__ volatile (LOCK_IF_MP(%4) "cmpxchgl %1,(%3)" - : "=a" (exchange_value) - : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) - : "cc", "memory"); - return exchange_value; - } - - - inline jbyte _Atomic_cmpxchg_byte(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, int mp) { - __asm__ volatile (LOCK_IF_MP(%4) "cmpxchgb %1,(%3)" - : "=a" (exchange_value) - : "q" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) - : "cc", "memory"); - return exchange_value; - } - - // This is the interface to the atomic instruction in solaris_i486.s. - jlong _Atomic_cmpxchg_long_gcc(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp); - - inline jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp) { -#ifdef AMD64 - __asm__ __volatile__ (LOCK_IF_MP(%4) "cmpxchgq %1,(%3)" - : "=a" (exchange_value) - : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp) - : "cc", "memory"); - return exchange_value; -#else - return _Atomic_cmpxchg_long_gcc(exchange_value, dest, compare_value, os::is_MP()); - - #if 0 - // The code below does not work presumably because of the bug in gcc - // The error message says: - // can't find a register in class BREG while reloading asm - // However I want to save this code and later replace _Atomic_cmpxchg_long_gcc - // with such inline asm code: - - volatile jlong_accessor evl, cvl, rv; - evl.long_value = exchange_value; - cvl.long_value = compare_value; - int mp = os::is_MP(); - - __asm__ volatile ("cmp $0, %%esi\n\t" - "je 1f \n\t" - "lock\n\t" - "1: cmpxchg8b (%%edi)\n\t" - : "=a"(cvl.words[0]), "=d"(cvl.words[1]) - : "a"(cvl.words[0]), "d"(cvl.words[1]), - "b"(evl.words[0]), "c"(evl.words[1]), - "D"(dest), "S"(mp) - : "cc", "memory"); - return cvl.long_value; - #endif // if 0 -#endif // AMD64 - } -} -#undef LOCK_IF_MP - -#endif // _GNU_SOURCE - -#endif // OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP