hotspot/src/os/bsd/vm/globals_bsd.hpp
author gziemski
Tue, 10 May 2016 12:10:21 -0500
changeset 38273 2634194d7555
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child 39117 59fa99a45873
permissions -rw-r--r--
8073500: Prevent certain commercial flags from being changed at runtime Summary: Implement new writeable mechanism for flag control Reviewed-by: coleenp, iklam
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/*
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 * Copyright (c) 2005, 2016, 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_BSD_VM_GLOBALS_BSD_HPP
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#define OS_BSD_VM_GLOBALS_BSD_HPP
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//
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// Defines Bsd specific flags. They are not available on other platforms.
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//
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#define RUNTIME_OS_FLAGS(develop, \
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                         develop_pd, \
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                         product, \
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                         product_pd, \
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                         diagnostic, \
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                         notproduct, \
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                         range, \
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                         constraint, \
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                         writeable) \
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                                                                                \
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  product(bool, UseOprofile, false,                                             \
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        "enable support for Oprofile profiler")                                 \
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                                                                                \
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  /*  NB: The default value of UseBsdPosixThreadCPUClocks may be  */            \
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  /*  overridden in Arguments::parse_each_vm_init_arg.            */            \
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  product(bool, UseBsdPosixThreadCPUClocks, true,                               \
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          "enable fast Bsd Posix clocks where available")                       \
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                                                                                \
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  product(bool, UseHugeTLBFS, false,                                            \
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          "Use MAP_HUGETLB for large pages")                                    \
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                                                                                \
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  product(bool, UseSHM, false,                                                  \
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          "Use SYSV shared memory for large pages")
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//
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// Defines Bsd-specific default values. The flags are available on all
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// platforms, but they may have different default values on other platforms.
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//
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define_pd_global(bool, UseLargePages, false);
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define_pd_global(bool, UseLargePagesIndividualAllocation, false);
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define_pd_global(bool, UseOSErrorReporting, false);
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define_pd_global(bool, UseThreadPriorities, true) ;
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#endif // OS_BSD_VM_GLOBALS_BSD_HPP