Mercurial > hg > truffle
view src/os_cpu/bsd_x86/vm/os_bsd_x86.inline.hpp @ 15462:05d3f069cff2
fixed pylint warning
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 02 May 2014 00:17:40 +0200 |
parents | b9a9ed0f8eeb |
children |
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/* * Copyright (c) 2011, 2012, 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_BSD_X86_VM_OS_BSD_X86_INLINE_HPP #define OS_CPU_BSD_X86_VM_OS_BSD_X86_INLINE_HPP #include "runtime/os.hpp" // See http://www.technovelty.org/code/c/reading-rdtsc.htl for details inline jlong os::rdtsc() { #ifndef AMD64 // 64 bit result in edx:eax uint64_t res; __asm__ __volatile__ ("rdtsc" : "=A" (res)); return (jlong)res; #else uint64_t res; uint32_t ts1, ts2; __asm__ __volatile__ ("rdtsc" : "=a" (ts1), "=d" (ts2)); res = ((uint64_t)ts1 | (uint64_t)ts2 << 32); return (jlong)res; #endif // AMD64 } #endif // OS_CPU_BSD_X86_VM_OS_BSD_X86_INLINE_HPP