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"); 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 }