1 /*
2 * Copyright (c) 2000, 2019, 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_JVMCI_JVMCI_GLOBALS_HPP
26 #define SHARE_JVMCI_JVMCI_GLOBALS_HPP
27
28 #include "runtime/globals.hpp"
29 #include "utilities/ostream.hpp"
30
31 //
32 // Defines all global flags used by the JVMCI compiler. Only flags that need
33 // to be accessible to the JVMCI C++ code should be defined here.
34 //
35 #define JVMCI_FLAGS(develop, \
36 develop_pd, \
37 product, \
38 product_pd, \
39 diagnostic, \
40 diagnostic_pd, \
41 experimental, \
42 notproduct, \
43 range, \
44 constraint, \
45 writeable) \
46 \
47 experimental(bool, EnableJVMCI, false, \
48 "Enable JVMCI") \
49 \
50 experimental(bool, UseJVMCICompiler, false, \
51 "Use JVMCI as the default compiler") \
52 \
53 experimental(bool, JVMCIPrintProperties, false, \
54 "Prints properties used by the JVMCI compiler and exits") \
55 \
56 experimental(bool, BootstrapJVMCI, false, \
57 "Bootstrap JVMCI before running Java main method") \
58 \
59 experimental(bool, EagerJVMCI, false, \
60 "Force eager JVMCI initialization") \
61 \
62 experimental(bool, PrintBootstrap, true, \
63 "Print JVMCI bootstrap progress and summary") \
64 \
65 experimental(intx, JVMCIThreads, 1, \
66 "Force number of JVMCI compiler threads to use. Ignored if " \
67 "UseJVMCICompiler is false.") \
68 range(1, max_jint) \
69 \
70 experimental(intx, JVMCIHostThreads, 1, \
71 "Force number of C1 compiler threads. Ignored if " \
72 "UseJVMCICompiler is false.") \
73 range(1, max_jint) \
74 \
75 NOT_COMPILER2(product(intx, MaxVectorSize, 64, \
76 "Max vector size in bytes, " \
77 "actual size could be less depending on elements type")) \
78 \
79 NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true, \
80 "Defer write barriers of young objects")) \
81 \
82 experimental(intx, JVMCITraceLevel, 0, \
83 "Trace level for JVMCI: " \
84 "1 means emit a message for each CompilerToVM call," \
85 "levels greater than 1 provide progressively greater detail") \
86 \
87 experimental(intx, JVMCICounterSize, 0, \
88 "Reserved size for benchmark counters") \
89 range(0, max_jint) \
90 \
91 experimental(bool, JVMCICountersExcludeCompiler, true, \
92 "Exclude JVMCI compiler threads from benchmark counters") \
93 \
94 develop(bool, JVMCIUseFastLocking, true, \
95 "Use fast inlined locking code") \
96 \
97 experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, \
98 "Maximum size of a compiled method.") \
99 \
100 experimental(intx, MethodProfileWidth, 0, \
101 "Number of methods to record in call profile") \
102 \
103 experimental(ccstr, JVMCILibPath, NULL, \
104 "LD path for loading the JVMCI shared library") \
105 \
106 experimental(ccstr, JVMCILibDumpJNIConfig, NULL, \
107 "Dumps to the given file a description of the classes, fields " \
108 "and methods the JVMCI shared library must provide") \
109 \
110 experimental(bool, UseJVMCINativeLibrary, false, \
111 "Execute JVMCI Java code from a shared library " \
112 "instead of loading it from class files and executing it " \
113 "on the HotSpot heap") \
114 \
115 experimental(ccstr, TraceClassLoadingCause, NULL, \
116 "Print Java stack trace when loading a class whose fully" \
117 "qualified name contains this string (\"*\" matches any class).") \
118 \
119 NOT_COMPILER2(diagnostic(bool, UseMultiplyToLenIntrinsic, false, \
120 "Enables intrinsification of BigInteger.multiplyToLen()")) \
121 \
122 NOT_COMPILER2(diagnostic(bool, UseSquareToLenIntrinsic, false, \
123 "Enables intrinsification of BigInteger.squareToLen()")) \
124 \
125 NOT_COMPILER2(diagnostic(bool, UseMulAddIntrinsic, false, \
126 "Enables intrinsification of BigInteger.mulAdd()")) \
127 \
128 NOT_COMPILER2(diagnostic(bool, UseMontgomeryMultiplyIntrinsic, false, \
129 "Enables intrinsification of BigInteger.montgomeryMultiply()")) \
130 \
131 NOT_COMPILER2(diagnostic(bool, UseMontgomerySquareIntrinsic, false, \
132 "Enables intrinsification of BigInteger.montgomerySquare()"))
133
134
135 // Read default values for JVMCI globals
136
137 JVMCI_FLAGS(DECLARE_DEVELOPER_FLAG, \
138 DECLARE_PD_DEVELOPER_FLAG, \
139 DECLARE_PRODUCT_FLAG, \
140 DECLARE_PD_PRODUCT_FLAG, \
141 DECLARE_DIAGNOSTIC_FLAG, \
142 DECLARE_PD_DIAGNOSTIC_FLAG, \
143 DECLARE_EXPERIMENTAL_FLAG, \
144 DECLARE_NOTPRODUCT_FLAG, \
145 IGNORE_RANGE, \
146 IGNORE_CONSTRAINT, \
147 IGNORE_WRITEABLE)
148
149 // The base name for the shared library containing the JVMCI based compiler
150 #define JVMCI_SHARED_LIBRARY_NAME "jvmcicompiler"
151
152 class JVMCIGlobals {
153 private:
154 static fileStream* _jni_config_file;
155 public:
156
157 // Returns true if jvmci flags are consistent. If not consistent,
158 // an error message describing the inconsistency is printed before
159 // returning false.
160 static bool check_jvmci_flags_are_consistent();
161
162 // Check and exit VM with error if selected GC is not supported by JVMCI.
163 static void check_jvmci_supported_gc();
164
165 static fileStream* get_jni_config_file() { return _jni_config_file; }
166 };
167 #endif // SHARE_JVMCI_JVMCI_GLOBALS_HPP