hotspot/src/share/vm/runtime/atomic.inline.hpp
author goetz
Sun, 20 Dec 2015 10:37:23 -0500
changeset 35201 996db89f378e
parent 29181 89beae49867c
child 39404 d0ad5220e91c
permissions -rw-r--r--
8139864: Improve handling of stack protection zones. Reviewed-by: stuefe, coleenp, fparain

/*
 * Copyright (c) 2012, 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
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#ifndef SHARE_VM_RUNTIME_ATOMIC_INLINE_HPP
#define SHARE_VM_RUNTIME_ATOMIC_INLINE_HPP

#include "runtime/atomic.hpp"

// Linux
#ifdef TARGET_OS_ARCH_linux_x86
# include "atomic_linux_x86.inline.hpp"
#endif
#ifdef TARGET_OS_ARCH_linux_sparc
# include "atomic_linux_sparc.inline.hpp"
#endif
#ifdef TARGET_OS_ARCH_linux_zero
# include "atomic_linux_zero.inline.hpp"
#endif
#ifdef TARGET_OS_ARCH_linux_arm
# include "atomic_linux_arm.inline.hpp"
#endif
#ifdef TARGET_OS_ARCH_linux_ppc
# include "atomic_linux_ppc.inline.hpp"
#endif
#ifdef TARGET_OS_ARCH_linux_aarch64
# include "atomic_linux_aarch64.inline.hpp"
#endif

// Solaris
#ifdef TARGET_OS_ARCH_solaris_x86
# include "atomic_solaris_x86.inline.hpp"
#endif
#ifdef TARGET_OS_ARCH_solaris_sparc
# include "atomic_solaris_sparc.inline.hpp"
#endif

// Windows
#ifdef TARGET_OS_ARCH_windows_x86
# include "atomic_windows_x86.inline.hpp"
#endif

// AIX
#ifdef TARGET_OS_ARCH_aix_ppc
# include "atomic_aix_ppc.inline.hpp"
#endif

// BSD
#ifdef TARGET_OS_ARCH_bsd_x86
# include "atomic_bsd_x86.inline.hpp"
#endif
#ifdef TARGET_OS_ARCH_bsd_zero
# include "atomic_bsd_zero.inline.hpp"
#endif

// size_t casts...
#if (SIZE_MAX != UINTPTR_MAX)
#error size_t is not WORD_SIZE, interesting platform, but missing implementation here
#endif

inline size_t Atomic::add(size_t add_value, volatile size_t* dest) {
  return (size_t) add_ptr((intptr_t) add_value, (volatile intptr_t*) dest);
}

inline void Atomic::inc(volatile size_t* dest) {
  inc_ptr((volatile intptr_t*) dest);
}

inline void Atomic::dec(volatile size_t* dest) {
  dec_ptr((volatile intptr_t*) dest);
}

#ifndef VM_HAS_SPECIALIZED_CMPXCHG_BYTE
// See comment in atomic.cpp how to override.
inline jbyte Atomic::cmpxchg(jbyte exchange_value, volatile jbyte *dest, jbyte comparand)
{
  return cmpxchg_general(exchange_value, dest, comparand);
}
#endif // VM_HAS_SPECIALIZED_CMPXCHG_BYTE

#endif // SHARE_VM_RUNTIME_ATOMIC_INLINE_HPP