1/*
2 * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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23 */
24
25#ifndef SHARE_VM_JVMCI_JVMCIGLOBALS_HPP
26#define SHARE_VM_JVMCI_JVMCIGLOBALS_HPP
27
28#include "runtime/globals.hpp"
29
30//
31// Defines all global flags used by the JVMCI compiler. Only flags that need
32// to be accessible to the JVMCI C++ code should be defined here.
33//
34#define JVMCI_FLAGS(develop, \
35                    develop_pd, \
36                    product, \
37                    product_pd, \
38                    diagnostic, \
39                    diagnostic_pd, \
40                    experimental, \
41                    notproduct, \
42                    range, \
43                    constraint, \
44                    writeable) \
45                                                                            \
46  experimental(bool, EnableJVMCI, false,                                    \
47          "Enable JVMCI")                                                   \
48                                                                            \
49  experimental(bool, UseJVMCICompiler, false,                               \
50          "Use JVMCI as the default compiler")                              \
51                                                                            \
52  experimental(bool, JVMCIPrintProperties, false,                           \
53          "Prints properties used by the JVMCI compiler and exits")         \
54                                                                            \
55  experimental(bool, BootstrapJVMCI, false,                                 \
56          "Bootstrap JVMCI before running Java main method")                \
57                                                                            \
58  experimental(bool, PrintBootstrap, true,                                  \
59          "Print JVMCI bootstrap progress and summary")                     \
60                                                                            \
61  experimental(intx, JVMCIThreads, 1,                                       \
62          "Force number of JVMCI compiler threads to use")                  \
63          range(1, max_jint)                                                \
64                                                                            \
65  experimental(intx, JVMCIHostThreads, 1,                                   \
66          "Force number of compiler threads for JVMCI host compiler")       \
67          range(1, max_jint)                                                \
68                                                                            \
69  NOT_COMPILER2(product(intx, MaxVectorSize, 64,                            \
70          "Max vector size in bytes, "                                      \
71          "actual size could be less depending on elements type"))          \
72                                                                            \
73  NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true,                 \
74          "Defer write barriers of young objects"))                         \
75                                                                            \
76  experimental(intx, JVMCITraceLevel, 0,                                    \
77          "Trace level for JVMCI: "                                         \
78          "1 means emit a message for each CompilerToVM call,"              \
79          "levels greater than 1 provide progressively greater detail")     \
80                                                                            \
81  experimental(intx, JVMCICounterSize, 0,                                   \
82          "Reserved size for benchmark counters")                           \
83          range(0, max_jint)                                                \
84                                                                            \
85  experimental(bool, JVMCICountersExcludeCompiler, true,                    \
86          "Exclude JVMCI compiler threads from benchmark counters")         \
87                                                                            \
88  develop(bool, JVMCIUseFastLocking, true,                                  \
89          "Use fast inlined locking code")                                  \
90                                                                            \
91  experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize,                \
92          "Maximum size of a compiled method.")                             \
93                                                                            \
94  experimental(intx, MethodProfileWidth, 0,                                 \
95          "Number of methods to record in call profile")                    \
96                                                                            \
97  develop(bool, TraceUncollectedSpeculations, false,                        \
98          "Print message when a failed speculation was not collected")
99
100
101// Read default values for JVMCI globals
102
103JVMCI_FLAGS(DECLARE_DEVELOPER_FLAG, \
104            DECLARE_PD_DEVELOPER_FLAG, \
105            DECLARE_PRODUCT_FLAG, \
106            DECLARE_PD_PRODUCT_FLAG, \
107            DECLARE_DIAGNOSTIC_FLAG, \
108            DECLARE_PD_DIAGNOSTIC_FLAG, \
109            DECLARE_EXPERIMENTAL_FLAG, \
110            DECLARE_NOTPRODUCT_FLAG, \
111            IGNORE_RANGE, \
112            IGNORE_CONSTRAINT, \
113            IGNORE_WRITEABLE)
114
115class JVMCIGlobals {
116 public:
117  // Return true if jvmci flags are consistent. If not consistent,
118  // an error message describing the inconsistency is printed before
119  // returning false.
120  static bool check_jvmci_flags_are_consistent();
121};
122#endif // SHARE_VM_JVMCI_JVMCIGLOBALS_HPP
123