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.
18 *
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
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "jvm.h"
27 #include "jvmci/jvmci_globals.hpp"
28 #include "gc/shared/gcConfig.hpp"
29 #include "utilities/defaultStream.hpp"
30 #include "utilities/ostream.hpp"
31 #include "runtime/globals_extension.hpp"
32
33 fileStream* JVMCIGlobals::_jni_config_file = NULL;
34
35 JVMCI_FLAGS(MATERIALIZE_DEVELOPER_FLAG, \
36 MATERIALIZE_PD_DEVELOPER_FLAG, \
37 MATERIALIZE_PRODUCT_FLAG, \
38 MATERIALIZE_PD_PRODUCT_FLAG, \
39 MATERIALIZE_DIAGNOSTIC_FLAG, \
40 MATERIALIZE_PD_DIAGNOSTIC_FLAG, \
41 MATERIALIZE_EXPERIMENTAL_FLAG, \
42 MATERIALIZE_NOTPRODUCT_FLAG,
43 IGNORE_RANGE, \
44 IGNORE_CONSTRAINT, \
45 IGNORE_WRITEABLE)
46
47 // Return true if jvmci flags are consistent.
48 bool JVMCIGlobals::check_jvmci_flags_are_consistent() {
49
50 #ifndef PRODUCT
51 #define APPLY_JVMCI_FLAGS(params3, params4) \
52 JVMCI_FLAGS(params4, params3, params4, params3, params4, params3, params4, params4, IGNORE_RANGE, IGNORE_CONSTRAINT, IGNORE_WRITEABLE)
53 #define JVMCI_DECLARE_CHECK4(type, name, value, doc) bool name##checked = false;
54 #define JVMCI_DECLARE_CHECK3(type, name, doc) bool name##checked = false;
55 #define JVMCI_FLAG_CHECKED(name) name##checked = true;
56 APPLY_JVMCI_FLAGS(JVMCI_DECLARE_CHECK3, JVMCI_DECLARE_CHECK4)
57 #else
58 #define JVMCI_FLAG_CHECKED(name)
59 #endif
60
61 // Checks that a given flag is not set if a given guard flag is false.
62 #define CHECK_NOT_SET(FLAG, GUARD) \
63 JVMCI_FLAG_CHECKED(FLAG) \
64 if (!GUARD && !FLAG_IS_DEFAULT(FLAG)) { \
65 jio_fprintf(defaultStream::error_stream(), \
66 "Improperly specified VM option '%s': '%s' must be enabled\n", #FLAG, #GUARD); \
67 return false; \
68 }
69
70 JVMCI_FLAG_CHECKED(UseJVMCICompiler)
71 JVMCI_FLAG_CHECKED(EnableJVMCI)
72
73 CHECK_NOT_SET(BootstrapJVMCI, UseJVMCICompiler)
74 CHECK_NOT_SET(PrintBootstrap, UseJVMCICompiler)
75 CHECK_NOT_SET(JVMCIThreads, UseJVMCICompiler)
76 CHECK_NOT_SET(JVMCIHostThreads, UseJVMCICompiler)
77
78 if (UseJVMCICompiler) {
79 if (!FLAG_IS_DEFAULT(EnableJVMCI) && !EnableJVMCI) {
80 jio_fprintf(defaultStream::error_stream(),
81 "Improperly specified VM option UseJVMCICompiler: EnableJVMCI cannot be disabled\n");
82 return false;
83 }
84 FLAG_SET_DEFAULT(EnableJVMCI, true);
85 if (BootstrapJVMCI && UseJVMCINativeLibrary) {
86 jio_fprintf(defaultStream::error_stream(), "-XX:+BootstrapJVMCI is not compatible with -XX:+UseJVMCINativeLibrary\n");
87 return false;
88 }
89 }
90
91 if (!EnableJVMCI) {
92 // Switch off eager JVMCI initialization if JVMCI is disabled.
93 // Don't throw error if EagerJVMCI is set to allow testing.
94 if (EagerJVMCI) {
95 FLAG_SET_DEFAULT(EagerJVMCI, false);
96 }
97 }
98 JVMCI_FLAG_CHECKED(EagerJVMCI)
99
100 CHECK_NOT_SET(JVMCITraceLevel, EnableJVMCI)
101 CHECK_NOT_SET(JVMCICounterSize, EnableJVMCI)
102 CHECK_NOT_SET(JVMCICountersExcludeCompiler, EnableJVMCI)
103 CHECK_NOT_SET(JVMCIUseFastLocking, EnableJVMCI)
104 CHECK_NOT_SET(JVMCINMethodSizeLimit, EnableJVMCI)
105 CHECK_NOT_SET(MethodProfileWidth, EnableJVMCI)
106 CHECK_NOT_SET(JVMCIPrintProperties, EnableJVMCI)
107 CHECK_NOT_SET(UseJVMCINativeLibrary, EnableJVMCI)
108 CHECK_NOT_SET(JVMCILibPath, EnableJVMCI)
109 CHECK_NOT_SET(JVMCILibDumpJNIConfig, EnableJVMCI)
110
111 #ifndef PRODUCT
112 #define JVMCI_CHECK4(type, name, value, doc) assert(name##checked, #name " flag not checked");
113 #define JVMCI_CHECK3(type, name, doc) assert(name##checked, #name " flag not checked");
114 // Ensures that all JVMCI flags are checked by this method.
115 APPLY_JVMCI_FLAGS(JVMCI_CHECK3, JVMCI_CHECK4)
116 #undef APPLY_JVMCI_FLAGS
117 #undef JVMCI_DECLARE_CHECK3
118 #undef JVMCI_DECLARE_CHECK4
119 #undef JVMCI_CHECK3
120 #undef JVMCI_CHECK4
121 #undef JVMCI_FLAG_CHECKED
122 #endif // PRODUCT
123 #undef CHECK_NOT_SET
124
125 if (JVMCILibDumpJNIConfig != NULL) {
126 _jni_config_file = new(ResourceObj::C_HEAP, mtJVMCI) fileStream(JVMCILibDumpJNIConfig);
127 if (_jni_config_file == NULL || !_jni_config_file->is_open()) {
128 jio_fprintf(defaultStream::error_stream(),
129 "Could not open file for dumping JVMCI shared library JNI config: %s\n", JVMCILibDumpJNIConfig);
130 return false;
131 }
132 }
133
134 return true;
135 }
136
137 void JVMCIGlobals::check_jvmci_supported_gc() {
138 if (EnableJVMCI) {
139 // Check if selected GC is supported by JVMCI and Java compiler
140 if (!(UseSerialGC || UseParallelGC || UseParallelOldGC || UseG1GC)) {
141 vm_exit_during_initialization("JVMCI Compiler does not support selected GC", GCConfig::hs_err_name());
142 FLAG_SET_DEFAULT(EnableJVMCI, false);
143 FLAG_SET_DEFAULT(UseJVMCICompiler, false);
144 }
145 }
146 }