globals_zero.hpp revision 9737:e286c9ccd58d 
1/*
2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
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24 */
25
26#ifndef CPU_ZERO_VM_GLOBALS_ZERO_HPP
27#define CPU_ZERO_VM_GLOBALS_ZERO_HPP
28
29#include "utilities/globalDefinitions.hpp"
30#include "utilities/macros.hpp"
31
32// Set the default values for platform dependent flags used by the
33// runtime system.  See globals.hpp for details of what they do.
34
35define_pd_global(bool,  ConvertSleepToYield,  true);
36define_pd_global(bool,  ShareVtableStubs,     true);
37define_pd_global(bool,  NeedsDeoptSuspend,    false);
38
39define_pd_global(bool,  ImplicitNullChecks,   true);
40define_pd_global(bool,  TrapBasedNullChecks,  false);
41define_pd_global(bool,  UncommonNullCast,     true);
42
43define_pd_global(intx,  CodeEntryAlignment,   32);
44define_pd_global(intx,  OptoLoopAlignment,    16);
45define_pd_global(intx,  InlineFrequencyCount, 100);
46define_pd_global(intx,  InlineSmallCode,      1000 );
47
48#define DEFAULT_STACK_YELLOW_PAGES (2)
49#define DEFAULT_STACK_RED_PAGES (1)
50#define DEFAULT_STACK_SHADOW_PAGES (5 LP64_ONLY(+1) DEBUG_ONLY(+3))
51#define DEFAULT_STACK_RESERVED_PAGES (0)
52
53#define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
54#define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
55#define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES
56#define MIN_STACK_RESERVED_PAGES (0)
57
58define_pd_global(intx,  StackYellowPages,     DEFAULT_STACK_YELLOW_PAGES);
59define_pd_global(intx,  StackRedPages,        DEFAULT_STACK_RED_PAGES);
60define_pd_global(intx,  StackShadowPages,     DEFAULT_STACK_SHADOW_PAGES);
61define_pd_global(intx,  StackReservedPages,   DEFAULT_STACK_RESERVED_PAGES);
62
63define_pd_global(bool,  RewriteBytecodes,     true);
64define_pd_global(bool,  RewriteFrequentPairs, true);
65
66define_pd_global(bool,  UseMembar,            true);
67
68// GC Ergo Flags
69define_pd_global(size_t, CMSYoungGenPerWorker, 16*M);  // default max size of CMS young gen, per GC worker thread
70
71define_pd_global(uintx, TypeProfileLevel, 0);
72
73define_pd_global(bool, PreserveFramePointer, false);
74
75// No performance work done here yet.
76define_pd_global(bool, CompactStrings, false);
77
78#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct, range, constraint)  \
79                                                                            \
80  product(bool, UseFastEmptyMethods, true,                                  \
81          "Use fast method entry code for empty methods")                   \
82                                                                            \
83  product(bool, UseFastAccessorMethods, true,                               \
84          "Use fast method entry code for accessor methods")                \
85                                                                            \
86
87#endif // CPU_ZERO_VM_GLOBALS_ZERO_HPP
88