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annotate src/share/vm/jvmci/jvmci_globals.cpp @ 24144:b0077339d77e

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use existence of <java.home>/lib/use-jvmci-compiler-by-default to override default value of UseJVMCICompiler
author Doug Simon <doug.simon@oracle.com>
date Thu, 15 Jun 2017 12:04:08 +0200
parents 15ab3e226b0d
children 2f2299c68571
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1 /*
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2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "jvmci/jvmci_globals.hpp"
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27 #include "utilities/defaultStream.hpp"
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28 #include "runtime/globals_extension.hpp"
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29 #include "runtime/arguments.hpp"
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30 #ifdef TARGET_OS_FAMILY_linux
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31 # include "os_linux.inline.hpp"
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32 #endif
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33 #ifdef TARGET_OS_FAMILY_solaris
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34 # include "os_solaris.inline.hpp"
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35 #endif
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36 #ifdef TARGET_OS_FAMILY_windows
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37 # include "os_windows.inline.hpp"
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38 #endif
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39 #ifdef TARGET_OS_FAMILY_aix
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40 # include "os_aix.inline.hpp"
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41 #endif
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42 #ifdef TARGET_OS_FAMILY_bsd
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43 # include "os_bsd.inline.hpp"
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44 #endif
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45
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46 JVMCI_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, MATERIALIZE_NOTPRODUCT_FLAG)
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47
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48 bool JVMCIGlobals::check_jvmci_flags_are_consistent() {
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49 #ifndef PRODUCT
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50 #define APPLY_JVMCI_FLAGS(params3, params4) \
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51 JVMCI_FLAGS(params4, params3, params4, params3, params4)
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52 #define JVMCI_DECLARE_CHECK4(type, name, value, doc) bool name##checked = false;
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53 #define JVMCI_DECLARE_CHECK3(type, name, doc) bool name##checked = false;
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54 #define JVMCI_FLAG_CHECKED(name) name##checked = true;
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55 APPLY_JVMCI_FLAGS(JVMCI_DECLARE_CHECK3, JVMCI_DECLARE_CHECK4)
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56 #else
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57 #define JVMCI_FLAG_CHECKED(name)
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58 #endif
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59
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60 // Checks that a given flag is not set if a given guard flag is false.
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61 #define CHECK_NOT_SET(FLAG, GUARD) \
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62 JVMCI_FLAG_CHECKED(FLAG) \
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63 if (!GUARD && !FLAG_IS_DEFAULT(FLAG)) { \
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64 jio_fprintf(defaultStream::error_stream(), \
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65 "Improperly specified VM option '%s': '%s' must be enabled\n", #FLAG, #GUARD); \
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66 return false; \
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67 }
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68
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69 JVMCI_FLAG_CHECKED(UseJVMCICompiler)
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70 JVMCI_FLAG_CHECKED(EnableJVMCI)
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71
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72 CHECK_NOT_SET(BootstrapJVMCI, UseJVMCICompiler)
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73 CHECK_NOT_SET(PrintBootstrap, UseJVMCICompiler)
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74 CHECK_NOT_SET(JVMCIThreads, UseJVMCICompiler)
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75 CHECK_NOT_SET(JVMCIHostThreads, UseJVMCICompiler)
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76
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77 if (UseJVMCICompiler) {
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78 if (!FLAG_IS_DEFAULT(EnableJVMCI) && !EnableJVMCI) {
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79 jio_fprintf(defaultStream::error_stream(),
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80 "Improperly specified VM option UseJVMCICompiler: EnableJVMCI cannot be disabled\n");
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81 return false;
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82 }
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83 FLAG_SET_DEFAULT(EnableJVMCI, true);
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84 }
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85 CHECK_NOT_SET(UseJVMCIClassLoader, EnableJVMCI)
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86 CHECK_NOT_SET(CodeInstallSafepointChecks, EnableJVMCI)
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87 CHECK_NOT_SET(JVMCITraceLevel, EnableJVMCI)
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88 CHECK_NOT_SET(JVMCICounterSize, EnableJVMCI)
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89 CHECK_NOT_SET(JVMCICountersExcludeCompiler, EnableJVMCI)
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90 CHECK_NOT_SET(JVMCIUseFastLocking, EnableJVMCI)
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91 CHECK_NOT_SET(JVMCINMethodSizeLimit, EnableJVMCI)
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92 CHECK_NOT_SET(MethodProfileWidth, EnableJVMCI)
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93 CHECK_NOT_SET(JVMCIPrintProperties, EnableJVMCI)
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94 CHECK_NOT_SET(TraceUncollectedSpeculations, EnableJVMCI)
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95
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96 #ifndef PRODUCT
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97 #define JVMCI_CHECK4(type, name, value, doc) assert(name##checked, #name " flag not checked");
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98 #define JVMCI_CHECK3(type, name, doc) assert(name##checked, #name " flag not checked");
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99 // Ensures that all JVMCI flags are checked by this method.
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100 APPLY_JVMCI_FLAGS(JVMCI_CHECK3, JVMCI_CHECK4)
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101 #undef APPLY_JVMCI_FLAGS
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102 #undef JVMCI_DECLARE_CHECK3
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103 #undef JVMCI_DECLARE_CHECK4
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104 #undef JVMCI_CHECK3
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105 #undef JVMCI_CHECK4
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106 #undef JVMCI_FLAG_CHECKED
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107 #endif
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108 #undef CHECK_NOT_SET
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109 if (UseJVMCICompiler) {
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110 if(JVMCIThreads < 1) {
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111 // Check the minimum number of JVMCI compiler threads
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112 jio_fprintf(defaultStream::error_stream(), "JVMCIThreads of " INTX_FORMAT " is invalid; must be at least 1\n", JVMCIThreads);
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113 return false;
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114 }
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115 }
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116 return true;
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117 }
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118
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119 void JVMCIGlobals::set_jvmci_specific_flags() {
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120 if (FLAG_IS_DEFAULT(UseJVMCICompiler) && !UseJVMCICompiler) {
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121 char filename[JVM_MAXPATHLEN];
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122 const char* fileSep = os::file_separator();
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123 jio_snprintf(filename, sizeof(filename), "%s%slib%suse-jvmci-compiler-by-default", Arguments::get_java_home(), fileSep, fileSep);
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124 struct stat statbuf;
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125 if (os::stat(filename, &statbuf) == 0) {
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126 FLAG_SET_ERGO(bool, UseJVMCICompiler, true);
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127 }
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128 }
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129
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130 if (UseJVMCICompiler) {
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131 if (FLAG_IS_DEFAULT(TypeProfileWidth)) {
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132 FLAG_SET_DEFAULT(TypeProfileWidth, 8);
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133 }
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134 // Adjust the on stack replacement percentage to avoid early
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135 // OSR compilations while JVMCI itself is warming up
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136 if (FLAG_IS_DEFAULT(OnStackReplacePercentage)) {
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137 FLAG_SET_DEFAULT(OnStackReplacePercentage, 933);
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138 }
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139 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) {
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140 FLAG_SET_DEFAULT(ReservedCodeCacheSize, 64*M);
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141 }
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142 if (FLAG_IS_DEFAULT(InitialCodeCacheSize)) {
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143 FLAG_SET_DEFAULT(InitialCodeCacheSize, 16*M);
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144 }
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145 if (FLAG_IS_DEFAULT(MetaspaceSize)) {
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146 FLAG_SET_DEFAULT(MetaspaceSize, 12*M);
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147 }
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148 if (FLAG_IS_DEFAULT(NewSizeThreadIncrease)) {
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149 FLAG_SET_DEFAULT(NewSizeThreadIncrease, 4*K);
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150 }
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151 }
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152 if (!ScavengeRootsInCode) {
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153 warning("forcing ScavengeRootsInCode non-zero because JVMCI is enabled");
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154 ScavengeRootsInCode = 1;
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155 }
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156 }