hotspot/src/cpu/zero/vm/globals_zero.hpp
author fparain
Fri, 11 Dec 2015 09:07:07 -0800
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child 36099 bb0cc62ab037
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8046936: JEP 270: Reserved Stack Areas for Critical Sections Reviewed-by: acorn, dcubed
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/*
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 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
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 * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
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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 CPU_ZERO_VM_GLOBALS_ZERO_HPP
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#define CPU_ZERO_VM_GLOBALS_ZERO_HPP
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#include "utilities/globalDefinitions.hpp"
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#include "utilities/macros.hpp"
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// Set the default values for platform dependent flags used by the
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// runtime system.  See globals.hpp for details of what they do.
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define_pd_global(bool,  ConvertSleepToYield,  true);
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define_pd_global(bool,  ShareVtableStubs,     true);
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define_pd_global(bool,  NeedsDeoptSuspend,    false);
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define_pd_global(bool,  ImplicitNullChecks,   true);
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define_pd_global(bool,  TrapBasedNullChecks,  false);
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define_pd_global(bool,  UncommonNullCast,     true);
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define_pd_global(intx,  CodeEntryAlignment,   32);
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define_pd_global(intx,  OptoLoopAlignment,    16);
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define_pd_global(intx,  InlineFrequencyCount, 100);
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define_pd_global(intx,  InlineSmallCode,      1000 );
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#define DEFAULT_STACK_YELLOW_PAGES (2)
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#define DEFAULT_STACK_RED_PAGES (1)
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#define DEFAULT_STACK_SHADOW_PAGES (5 LP64_ONLY(+1) DEBUG_ONLY(+3))
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#define DEFAULT_STACK_RESERVED_PAGES (0)
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#define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
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#define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
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#define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES
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#define MIN_STACK_RESERVED_PAGES (0)
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define_pd_global(intx,  StackYellowPages,     DEFAULT_STACK_YELLOW_PAGES);
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define_pd_global(intx,  StackRedPages,        DEFAULT_STACK_RED_PAGES);
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define_pd_global(intx,  StackShadowPages,     DEFAULT_STACK_SHADOW_PAGES);
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define_pd_global(intx,  StackReservedPages,   DEFAULT_STACK_RESERVED_PAGES);
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define_pd_global(bool,  RewriteBytecodes,     true);
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define_pd_global(bool,  RewriteFrequentPairs, true);
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define_pd_global(bool,  UseMembar,            true);
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// GC Ergo Flags
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define_pd_global(size_t, CMSYoungGenPerWorker, 16*M);  // default max size of CMS young gen, per GC worker thread
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define_pd_global(uintx, TypeProfileLevel, 0);
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define_pd_global(bool, PreserveFramePointer, false);
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// No performance work done here yet.
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define_pd_global(bool, CompactStrings, false);
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#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct, range, constraint)  \
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                                                                            \
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  product(bool, UseFastEmptyMethods, true,                                  \
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          "Use fast method entry code for empty methods")                   \
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                                                                            \
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  product(bool, UseFastAccessorMethods, true,                               \
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          "Use fast method entry code for accessor methods")                \
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                                                                            \
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#endif // CPU_ZERO_VM_GLOBALS_ZERO_HPP