src/os_cpu/bsd_x86/vm/prefetch_bsd_x86.inline.hpp

Fri, 08 Feb 2013 12:48:24 +0100

author
sla
date
Fri, 08 Feb 2013 12:48:24 +0100
changeset 4564
758935f7c23f
parent 0
f90c822e73f8
permissions
-rw-r--r--

8006423: SA: NullPointerException in sun.jvm.hotspot.debugger.bsd.BsdThread.getContext(BsdThread.java:67)
Summary: Do not rely on mach thread port names to identify threads from SA
Reviewed-by: dholmes, minqi, rbackman

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 *
aoqi@0 23 */
aoqi@0 24
aoqi@0 25 #ifndef OS_CPU_BSD_X86_VM_PREFETCH_BSD_X86_INLINE_HPP
aoqi@0 26 #define OS_CPU_BSD_X86_VM_PREFETCH_BSD_X86_INLINE_HPP
aoqi@0 27
aoqi@0 28 #include "runtime/prefetch.hpp"
aoqi@0 29
aoqi@0 30
aoqi@0 31 inline void Prefetch::read (void *loc, intx interval) {
aoqi@0 32 #ifdef AMD64
aoqi@0 33 __asm__ ("prefetcht0 (%0,%1,1)" : : "r" (loc), "r" (interval));
aoqi@0 34 #endif // AMD64
aoqi@0 35 }
aoqi@0 36
aoqi@0 37 inline void Prefetch::write(void *loc, intx interval) {
aoqi@0 38 #ifdef AMD64
aoqi@0 39
aoqi@0 40 // Do not use the 3dnow prefetchw instruction. It isn't supported on em64t.
aoqi@0 41 // __asm__ ("prefetchw (%0,%1,1)" : : "r" (loc), "r" (interval));
aoqi@0 42 __asm__ ("prefetcht0 (%0,%1,1)" : : "r" (loc), "r" (interval));
aoqi@0 43
aoqi@0 44 #endif // AMD64
aoqi@0 45 }
aoqi@0 46
aoqi@0 47 #endif // OS_CPU_BSD_X86_VM_PREFETCH_BSD_X86_INLINE_HPP

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