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annotate src/share/vm/jvmci/jvmci_globals.cpp @ 24234:ea6f94ab283b default tip

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Added tag jvmci-0.36 for changeset 8128b98d4736
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Mon, 18 Sep 2017 18:49:45 +0200
parents 67afd64bc794
children
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1baf7f1e3f23 decoupled C++ Graal runtime from C1
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1 /*
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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4 *
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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5 * This code is free software; you can redistribute it and/or modify it
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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6 * under the terms of the GNU General Public License version 2 only, as
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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7 * published by the Free Software Foundation.
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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8 *
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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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
1baf7f1e3f23 decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
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12 * version 2 for more details (a copy is included in the LICENSE file that
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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13 * accompanied this code).
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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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
1baf7f1e3f23 decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
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16 * 2 along with this work; if not, write to the Free Software Foundation,
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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18 *
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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20 * or visit www.oracle.com if you need additional information or have any
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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21 * questions.
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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22 *
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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23 */
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24
1baf7f1e3f23 decoupled C++ Graal runtime from C1
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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"
655fd63024d0 move jvmci flag handling to JVMCIGlobals
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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 // Gets the value of the jvmci.Compiler system property, initializing it
67afd64bc794 set jvmci.Compiler from <java.home>/jre/lib/jvmci/compiler-name before using its existence to change the default for UseJVMCICompiler
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49 // from <java.home>/lib/jvmci/compiler-name if the property is not
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50 // already defined and the compiler-name file exists.
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51 static const char* get_jvmci_compiler_name(bool* error) {
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52 *error = false;
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53 const char* compiler_name = Arguments::get_property("jvmci.Compiler");
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54 if (compiler_name == NULL) {
67afd64bc794 set jvmci.Compiler from <java.home>/jre/lib/jvmci/compiler-name before using its existence to change the default for UseJVMCICompiler
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55 char filename[JVM_MAXPATHLEN];
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56 const char* fileSep = os::file_separator();
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57 jio_snprintf(filename, sizeof(filename), "%s%slib%sjvmci%scompiler-name", Arguments::get_java_home(), fileSep, fileSep, fileSep);
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58 struct stat statbuf;
67afd64bc794 set jvmci.Compiler from <java.home>/jre/lib/jvmci/compiler-name before using its existence to change the default for UseJVMCICompiler
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59 if (os::stat(filename, &statbuf) == 0) {
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60 char line[256];
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61 if ((size_t) statbuf.st_size > sizeof(line)) {
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62 jio_fprintf(defaultStream::error_stream(), "Size of %s is greater than %d\n", filename, sizeof(line));
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63 *error = true;
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64 return NULL;
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65 }
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66
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67 FILE* stream = fopen(filename, "r");
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68 if (stream != NULL) {
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69 char line[256];
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70 if (fgets(line, sizeof(line), stream) != NULL) {
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71 // Strip newline from end of the line
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72 char* p = line + strlen(line) - 1;
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73 while (p >= line && (*p == '\r' || *p == '\n')) {
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74 *p-- = 0;
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75 }
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76 SystemProperty* last_prop = NULL;
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77 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
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78 last_prop = p;
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79 }
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80 guarantee(last_prop != NULL, "Cannot set jvmci.Compiler property before system properties have been created");
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81 SystemProperty* new_p = new SystemProperty("jvmci.Compiler", line, true);
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82 last_prop->set_next(new_p);
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83 compiler_name = new_p->value();
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84 } else {
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85 jio_fprintf(defaultStream::error_stream(),
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86 "Failed to read from %s (errno = %d)\n", filename, errno);
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87 fclose(stream);
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88 *error = true;
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89 return NULL;
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90 }
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91 fclose(stream);
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92 } else {
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93 jio_fprintf(defaultStream::error_stream(),
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94 "Failed to open %s (errno = %d)\n", filename, errno);
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95 *error = true;
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96 return NULL;
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97 }
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98 }
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99 }
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100 return compiler_name;
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101 }
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102
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103 bool JVMCIGlobals::check_jvmci_flags_are_consistent() {
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104 #ifndef PRODUCT
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105 #define APPLY_JVMCI_FLAGS(params3, params4) \
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106 JVMCI_FLAGS(params4, params3, params4, params3, params4)
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107 #define JVMCI_DECLARE_CHECK4(type, name, value, doc) bool name##checked = false;
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108 #define JVMCI_DECLARE_CHECK3(type, name, doc) bool name##checked = false;
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109 #define JVMCI_FLAG_CHECKED(name) name##checked = true;
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110 APPLY_JVMCI_FLAGS(JVMCI_DECLARE_CHECK3, JVMCI_DECLARE_CHECK4)
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111 #else
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112 #define JVMCI_FLAG_CHECKED(name)
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113 #endif
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114
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115 // Checks that a given flag is not set if a given guard flag is false.
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116 #define CHECK_NOT_SET(FLAG, GUARD) \
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117 JVMCI_FLAG_CHECKED(FLAG) \
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118 if (!GUARD && !FLAG_IS_DEFAULT(FLAG)) { \
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119 jio_fprintf(defaultStream::error_stream(), \
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120 "Improperly specified VM option '%s': '%s' must be enabled\n", #FLAG, #GUARD); \
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121 return false; \
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122 }
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123
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124 bool error;
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125 const char* compiler_name = get_jvmci_compiler_name(&error);
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126 if (error) {
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127 return false;
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128 }
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129
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130 if (FLAG_IS_DEFAULT(UseJVMCICompiler) && !UseJVMCICompiler) {
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131 if (compiler_name != NULL) {
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132 // If a JVMCI compiler has been explicitly specified, then
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133 // we enable the JVMCI compiler by default.
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134 FLAG_SET_DEFAULT(UseJVMCICompiler, true);
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135 }
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136 }
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137
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138 JVMCI_FLAG_CHECKED(UseJVMCICompiler)
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139 JVMCI_FLAG_CHECKED(EnableJVMCI)
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140
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141 CHECK_NOT_SET(BootstrapJVMCI, UseJVMCICompiler)
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142 CHECK_NOT_SET(PrintBootstrap, UseJVMCICompiler)
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143 CHECK_NOT_SET(JVMCIThreads, UseJVMCICompiler)
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144 CHECK_NOT_SET(JVMCIHostThreads, UseJVMCICompiler)
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145
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146 if (UseJVMCICompiler) {
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147 if (!FLAG_IS_DEFAULT(EnableJVMCI) && !EnableJVMCI) {
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148 jio_fprintf(defaultStream::error_stream(),
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149 "Improperly specified VM option UseJVMCICompiler: EnableJVMCI cannot be disabled\n");
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150 return false;
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151 }
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152 FLAG_SET_DEFAULT(EnableJVMCI, true);
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153 }
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154 CHECK_NOT_SET(UseJVMCIClassLoader, EnableJVMCI)
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155 CHECK_NOT_SET(CodeInstallSafepointChecks, EnableJVMCI)
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156 CHECK_NOT_SET(JVMCITraceLevel, EnableJVMCI)
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157 CHECK_NOT_SET(JVMCICounterSize, EnableJVMCI)
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158 CHECK_NOT_SET(JVMCICountersExcludeCompiler, EnableJVMCI)
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159 CHECK_NOT_SET(JVMCIUseFastLocking, EnableJVMCI)
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diff changeset
160 CHECK_NOT_SET(JVMCINMethodSizeLimit, EnableJVMCI)
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161 CHECK_NOT_SET(MethodProfileWidth, EnableJVMCI)
23783
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diff changeset
162 CHECK_NOT_SET(JVMCIPrintProperties, EnableJVMCI)
23775
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diff changeset
163 CHECK_NOT_SET(TraceUncollectedSpeculations, EnableJVMCI)
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164
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diff changeset
165 #ifndef PRODUCT
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166 #define JVMCI_CHECK4(type, name, value, doc) assert(name##checked, #name " flag not checked");
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diff changeset
167 #define JVMCI_CHECK3(type, name, doc) assert(name##checked, #name " flag not checked");
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168 // Ensures that all JVMCI flags are checked by this method.
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diff changeset
169 APPLY_JVMCI_FLAGS(JVMCI_CHECK3, JVMCI_CHECK4)
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diff changeset
170 #undef APPLY_JVMCI_FLAGS
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171 #undef JVMCI_DECLARE_CHECK3
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172 #undef JVMCI_DECLARE_CHECK4
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173 #undef JVMCI_CHECK3
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174 #undef JVMCI_CHECK4
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175 #undef JVMCI_FLAG_CHECKED
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176 #endif
23775
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177 #undef CHECK_NOT_SET
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diff changeset
178 if (UseJVMCICompiler) {
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diff changeset
179 if(JVMCIThreads < 1) {
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180 // Check the minimum number of JVMCI compiler threads
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181 jio_fprintf(defaultStream::error_stream(), "JVMCIThreads of " INTX_FORMAT " is invalid; must be at least 1\n", JVMCIThreads);
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182 return false;
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183 }
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184 }
23775
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185 return true;
23760
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186 }
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187
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188 void JVMCIGlobals::set_jvmci_specific_flags() {
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189 if (UseJVMCICompiler) {
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190 if (FLAG_IS_DEFAULT(TypeProfileWidth)) {
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diff changeset
191 FLAG_SET_DEFAULT(TypeProfileWidth, 8);
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192 }
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193 // Adjust the on stack replacement percentage to avoid early
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194 // OSR compilations while JVMCI itself is warming up
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195 if (FLAG_IS_DEFAULT(OnStackReplacePercentage)) {
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196 FLAG_SET_DEFAULT(OnStackReplacePercentage, 933);
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197 }
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198 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) {
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199 FLAG_SET_DEFAULT(ReservedCodeCacheSize, 64*M);
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200 }
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201 if (FLAG_IS_DEFAULT(InitialCodeCacheSize)) {
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202 FLAG_SET_DEFAULT(InitialCodeCacheSize, 16*M);
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203 }
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diff changeset
204 if (FLAG_IS_DEFAULT(MetaspaceSize)) {
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205 FLAG_SET_DEFAULT(MetaspaceSize, 12*M);
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206 }
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diff changeset
207 if (FLAG_IS_DEFAULT(NewSizeThreadIncrease)) {
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208 FLAG_SET_DEFAULT(NewSizeThreadIncrease, 4*K);
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209 }
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210 }
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211 if (!ScavengeRootsInCode) {
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212 warning("forcing ScavengeRootsInCode non-zero because JVMCI is enabled");
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213 ScavengeRootsInCode = 1;
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214 }
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215 }