/*

 * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

 * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.

 * 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.

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 */

#ifndef CPU_ZERO_GLOBALS_ZERO_HPP

#define CPU_ZERO_GLOBALS_ZERO_HPP

#include "utilities/globalDefinitions.hpp"

#include "utilities/macros.hpp"

// Set the default values for platform dependent flags used by the

// runtime system.  See globals.hpp for details of what they do.

define_pd_global(bool,  ShareVtableStubs,     true);

define_pd_global(bool,  ImplicitNullChecks,   true);

define_pd_global(bool,  TrapBasedNullChecks,  false);

define_pd_global(bool,  UncommonNullCast,     true);

define_pd_global(uintx, CodeCacheSegmentSize, 64 TIERED_ONLY(+64)); // Tiered compilation has large code-entry alignment.

define_pd_global(intx,  CodeEntryAlignment,   32);

define_pd_global(intx,  OptoLoopAlignment,    16);

define_pd_global(intx,  InlineFrequencyCount, 100);

define_pd_global(intx,  InlineSmallCode,      1000);

// not used, but must satisfy following constraints:

// 1.) <VALUE> must be in the allowed range for intx *and*

// 2.) <VALUE> % BytesPerLong == 0 so as to not

//     violate the constraint verifier on JVM start-up.

define_pd_global(intx,  InitArrayShortSize,   0);

#define DEFAULT_STACK_YELLOW_PAGES (2)

#define DEFAULT_STACK_RED_PAGES (1)

#define DEFAULT_STACK_SHADOW_PAGES (5 LP64_ONLY(+1) DEBUG_ONLY(+3))

#define DEFAULT_STACK_RESERVED_PAGES (0)

#define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES

#define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES

#define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES

#define MIN_STACK_RESERVED_PAGES (0)

define_pd_global(intx,  StackYellowPages,     DEFAULT_STACK_YELLOW_PAGES);

define_pd_global(intx,  StackRedPages,        DEFAULT_STACK_RED_PAGES);

define_pd_global(intx,  StackShadowPages,     DEFAULT_STACK_SHADOW_PAGES);

define_pd_global(intx,  StackReservedPages,   DEFAULT_STACK_RESERVED_PAGES);

define_pd_global(bool,  RewriteBytecodes,     true);

define_pd_global(bool,  RewriteFrequentPairs, true);

// GC Ergo Flags

define_pd_global(size_t, CMSYoungGenPerWorker, 16*M);  // default max size of CMS young gen, per GC worker thread

define_pd_global(uintx, TypeProfileLevel, 0);

define_pd_global(bool, PreserveFramePointer, false);

// No performance work done here yet.

define_pd_global(bool, CompactStrings, false);

define_pd_global(bool, ThreadLocalHandshakes, false);

#define ARCH_FLAGS(develop, \

                   product, \

                   diagnostic, \

                   experimental, \

                   notproduct, \

                   range, \

                   constraint, \

                   writeable)  \

                                                                            \

  product(bool, UseFastEmptyMethods, true,                                  \

          "Use fast method entry code for empty methods")                   \

                                                                            \

  product(bool, UseFastAccessorMethods, true,                               \

          "Use fast method entry code for accessor methods")                \

                                                                            \

#endif // CPU_ZERO_GLOBALS_ZERO_HPP