hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.hpp
author phh
Sun, 01 Jan 2012 11:17:59 -0500
changeset 11417 4ecc3253bec4
parent 10565 dc90c239f4ec
child 13963 e5b53c306fb5
permissions -rw-r--r--
7125934: Add a fast unordered timestamp capability to Hotspot on x86/x64 Summary: Add rdtsc detection and inline generation. Reviewed-by: kamg, dholmes Contributed-by: karen.kinnear@oracle.com
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/*
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 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef OS_CPU_BSD_X86_VM_OS_BSD_X86_HPP
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#define OS_CPU_BSD_X86_VM_OS_BSD_X86_HPP
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  static void setup_fpu();
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  static bool supports_sse();
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  static jlong rdtsc();
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  static bool is_allocatable(size_t bytes);
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  // Used to register dynamic code cache area with the OS
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  // Note: Currently only used in 64 bit Windows implementations
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  static bool register_code_area(char *low, char *high) { return true; }
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#endif // OS_CPU_BSD_X86_VM_OS_BSD_X86_HPP