--- a/hotspot/src/os_cpu/windows_x86/vm/atomic_windows_x86.inline.hpp Sun Aug 21 06:18:09 2016 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,304 +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_WINDOWS_X86_VM_ATOMIC_WINDOWS_X86_INLINE_HPP
-#define OS_CPU_WINDOWS_X86_VM_ATOMIC_WINDOWS_X86_INLINE_HPP
-
-#include "runtime/atomic.hpp"
-#include "runtime/os.hpp"
-
-// The following alternative implementations are needed because
-// Windows 95 doesn't support (some of) the corresponding Windows NT
-// calls. Furthermore, these versions allow inlining in the caller.
-// (More precisely: The documentation for InterlockedExchange says
-// it is supported for Windows 95. However, when single-stepping
-// through the assembly code we cannot step into the routine and
-// when looking at the routine address we see only garbage code.
-// Better safe then sorry!). Was bug 7/31/98 (gri).
-//
-// Performance note: On uniprocessors, the 'lock' prefixes are not
-// necessary (and expensive). We should generate separate cases if
-// this becomes a performance problem.
-
-#pragma warning(disable: 4035) // Disables warnings reporting missing return statement
-
-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; }
-
-// Adding a lock prefix to an instruction on MP machine
-// VC++ doesn't like the lock prefix to be on a single line
-// so we can't insert a label after the lock prefix.
-// By emitting a lock prefix, we can define a label after it.
-#define LOCK_IF_MP(mp) __asm cmp mp, 0 \
- __asm je L0 \
- __asm _emit 0xF0 \
- __asm L0:
-
-#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; }
-
-inline jint Atomic::add (jint add_value, volatile jint* dest) {
- return (jint)(*os::atomic_add_func)(add_value, dest);
-}
-
-inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
- return (intptr_t)(*os::atomic_add_ptr_func)(add_value, dest);
-}
-
-inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
- return (void*)(*os::atomic_add_ptr_func)(add_value, (volatile intptr_t*)dest);
-}
-
-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);
-}
-
-inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
- return (jint)(*os::atomic_xchg_func)(exchange_value, dest);
-}
-
-inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
- return (intptr_t)(os::atomic_xchg_ptr_func)(exchange_value, dest);
-}
-
-inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
- return (void *)(os::atomic_xchg_ptr_func)((intptr_t)exchange_value, (volatile intptr_t*)dest);
-}
-
-inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) {
- return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value);
-}
-
-#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
-inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) {
- return (*os::atomic_cmpxchg_byte_func)(exchange_value, dest, compare_value);
-}
-
-inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) {
- return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value);
-}
-
-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((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value, order);
-}
-
-inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) {
- return (void*)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value, order);
-}
-
-inline jlong Atomic::load(volatile jlong* src) { return *src; }
-
-#else // !AMD64
-
-inline jint Atomic::add (jint add_value, volatile jint* dest) {
- int mp = os::is_MP();
- __asm {
- mov edx, dest;
- mov eax, add_value;
- mov ecx, eax;
- LOCK_IF_MP(mp)
- xadd dword ptr [edx], eax;
- add eax, ecx;
- }
-}
-
-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 void Atomic::inc (volatile jint* dest) {
- // alternative for InterlockedIncrement
- int mp = os::is_MP();
- __asm {
- mov edx, dest;
- LOCK_IF_MP(mp)
- add dword ptr [edx], 1;
- }
-}
-
-inline void Atomic::inc_ptr(volatile intptr_t* dest) {
- inc((volatile jint*)dest);
-}
-
-inline void Atomic::inc_ptr(volatile void* dest) {
- inc((volatile jint*)dest);
-}
-
-inline void Atomic::dec (volatile jint* dest) {
- // alternative for InterlockedDecrement
- int mp = os::is_MP();
- __asm {
- mov edx, dest;
- LOCK_IF_MP(mp)
- sub dword ptr [edx], 1;
- }
-}
-
-inline void Atomic::dec_ptr(volatile intptr_t* dest) {
- dec((volatile jint*)dest);
-}
-
-inline void Atomic::dec_ptr(volatile void* dest) {
- dec((volatile jint*)dest);
-}
-
-inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
- // alternative for InterlockedExchange
- __asm {
- mov eax, exchange_value;
- mov ecx, dest;
- xchg eax, dword ptr [ecx];
- }
-}
-
-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);
-}
-
-#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
-inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) {
- // alternative for InterlockedCompareExchange
- int mp = os::is_MP();
- __asm {
- mov edx, dest
- mov cl, exchange_value
- mov al, compare_value
- LOCK_IF_MP(mp)
- cmpxchg byte ptr [edx], cl
- }
-}
-
-inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) {
- // alternative for InterlockedCompareExchange
- int mp = os::is_MP();
- __asm {
- mov edx, dest
- mov ecx, exchange_value
- mov eax, compare_value
- LOCK_IF_MP(mp)
- cmpxchg dword ptr [edx], ecx
- }
-}
-
-inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) {
- int mp = os::is_MP();
- jint ex_lo = (jint)exchange_value;
- jint ex_hi = *( ((jint*)&exchange_value) + 1 );
- jint cmp_lo = (jint)compare_value;
- jint cmp_hi = *( ((jint*)&compare_value) + 1 );
- __asm {
- push ebx
- push edi
- mov eax, cmp_lo
- mov edx, cmp_hi
- mov edi, dest
- mov ebx, ex_lo
- mov ecx, ex_hi
- LOCK_IF_MP(mp)
- cmpxchg8b qword ptr [edi]
- pop edi
- pop ebx
- }
-}
-
-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);
-}
-
-inline jlong Atomic::load(volatile jlong* src) {
- volatile jlong dest;
- volatile jlong* pdest = &dest;
- __asm {
- mov eax, src
- fild qword ptr [eax]
- mov eax, pdest
- fistp qword ptr [eax]
- }
- return dest;
-}
-
-inline void Atomic::store(jlong store_value, volatile jlong* dest) {
- volatile jlong* src = &store_value;
- __asm {
- mov eax, src
- fild qword ptr [eax]
- mov eax, dest
- fistp qword ptr [eax]
- }
-}
-
-inline void Atomic::store(jlong store_value, jlong* dest) {
- Atomic::store(store_value, (volatile jlong*)dest);
-}
-
-#endif // AMD64
-
-#pragma warning(default: 4035) // Enables warnings reporting missing return statement
-
-#endif // OS_CPU_WINDOWS_X86_VM_ATOMIC_WINDOWS_X86_INLINE_HPP