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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/stubs/StubUtil.java @ 13938:aa8fb1cb16d1

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Make graph builder more extensible
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 12 Feb 2014 10:23:41 -0800
parents af7fb87fc62e
children 9fa900dd3f96
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1 /*
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2 * Copyright (c) 2013, 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
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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 *
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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 package com.oracle.graal.hotspot.stubs;
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24
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25 import static com.oracle.graal.api.meta.DeoptimizationAction.*;
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26 import static com.oracle.graal.api.meta.DeoptimizationReason.*;
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27 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
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28 import static com.oracle.graal.hotspot.nodes.CStringNode.*;
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29 import static com.oracle.graal.hotspot.replacements.HotSpotReplacementsUtil.*;
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30 import static com.oracle.graal.word.Word.*;
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31
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32 import java.lang.reflect.*;
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33 import java.util.*;
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34
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35 import com.oracle.graal.api.meta.*;
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36 import com.oracle.graal.graph.Node.ConstantNodeParameter;
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37 import com.oracle.graal.graph.Node.NodeIntrinsic;
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38 import com.oracle.graal.hotspot.nodes.*;
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39 import com.oracle.graal.nodes.*;
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40 import com.oracle.graal.replacements.*;
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41 import com.oracle.graal.replacements.Snippet.Fold;
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42 import com.oracle.graal.word.*;
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43
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44 //JaCoCo Exclude
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45
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46 /**
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47 * A collection of methods used in {@link Stub}s.
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48 */
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49 public class StubUtil {
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50
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51 public static final ForeignCallDescriptor VM_MESSAGE_C = descriptorFor(StubUtil.class, "vmMessageC");
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52
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53 /**
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54 * Looks for a {@link StubForeignCallNode} node intrinsic named {@code name} in
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55 * {@code stubClass} and returns a {@link ForeignCallDescriptor} based on its signature and the
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56 * value of {@code hasSideEffect}.
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57 */
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58 public static ForeignCallDescriptor descriptorFor(Class<?> stubClass, String name) {
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59 Method found = null;
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60 for (Method method : stubClass.getDeclaredMethods()) {
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61 if (Modifier.isStatic(method.getModifiers()) && method.getAnnotation(NodeIntrinsic.class) != null && method.getName().equals(name)) {
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62 if (method.getAnnotation(NodeIntrinsic.class).value() == StubForeignCallNode.class) {
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63 assert found == null : "found more than one foreign call named " + name + " in " + stubClass;
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64 assert method.getParameterTypes().length != 0 && method.getParameterTypes()[0] == ForeignCallDescriptor.class : "first parameter of foreign call '" + name + "' in " + stubClass +
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65 " must be of type " + ForeignCallDescriptor.class.getSimpleName();
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66 found = method;
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67 }
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68 }
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69 }
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70 assert found != null : "could not find foreign call named " + name + " in " + stubClass;
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71 List<Class<?>> paramList = Arrays.asList(found.getParameterTypes());
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72 Class[] cCallTypes = paramList.subList(1, paramList.size()).toArray(new Class[paramList.size() - 1]);
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73 return new ForeignCallDescriptor(name, found.getReturnType(), cCallTypes);
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74 }
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75
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76 public static void handlePendingException(Word thread, boolean isObjectResult) {
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77 if (clearPendingException(thread)) {
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78 if (isObjectResult) {
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79 getAndClearObjectResult(thread);
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80 }
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81 DeoptimizeCallerNode.deopt(InvalidateReprofile, RuntimeConstraint);
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82 }
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83 }
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84
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85 /**
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86 * Determines if this is a HotSpot build where the ASSERT mechanism is enabled.
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87 */
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88 @Fold
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89 public static boolean cAssertionsEnabled() {
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90 return runtime().getConfig().cAssertions;
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91 }
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92
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93 @NodeIntrinsic(StubForeignCallNode.class)
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94 private static native void vmMessageC(@ConstantNodeParameter ForeignCallDescriptor stubPrintfC, boolean vmError, Word format, long v1, long v2, long v3);
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95
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96 /**
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97 * Prints a message to the log stream.
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98 * <p>
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99 * <b>Stubs must use this instead of {@link Log#printf(String, long)} to avoid an object
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100 * constant in a RuntimeStub.</b>
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101 *
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102 * @param message a message string
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103 */
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104 public static void printf(String message) {
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105 vmMessageC(VM_MESSAGE_C, false, cstring(message), 0L, 0L, 0L);
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106 }
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107
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108 /**
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109 * Prints a message to the log stream.
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110 * <p>
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111 * <b>Stubs must use this instead of {@link Log#printf(String, long)} to avoid an object
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112 * constant in a RuntimeStub.</b>
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113 *
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114 * @param format a C style printf format value
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115 * @param value the value associated with the first conversion specifier in {@code format}
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116 */
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117 public static void printf(String format, long value) {
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118 vmMessageC(VM_MESSAGE_C, false, cstring(format), value, 0L, 0L);
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119 }
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120
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121 /**
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122 * Prints a message to the log stream.
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123 * <p>
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124 * <b>Stubs must use this instead of {@link Log#printf(String, long, long)} to avoid an object
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125 * constant in a RuntimeStub.</b>
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126 *
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127 * @param format a C style printf format value
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128 * @param v1 the value associated with the first conversion specifier in {@code format}
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129 * @param v2 the value associated with the second conversion specifier in {@code format}
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130 */
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131 public static void printf(String format, long v1, long v2) {
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132 vmMessageC(VM_MESSAGE_C, false, cstring(format), v1, v2, 0L);
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133 }
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134
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135 /**
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136 * Prints a message to the log stream.
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137 * <p>
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138 * <b>Stubs must use this instead of {@link Log#printf(String, long, long, long)} to avoid an
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139 * object constant in a RuntimeStub.</b>
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140 *
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141 * @param format a C style printf format value
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142 * @param v1 the value associated with the first conversion specifier in {@code format}
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143 * @param v2 the value associated with the second conversion specifier in {@code format}
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144 * @param v3 the value associated with the third conversion specifier in {@code format}
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145 */
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146 public static void printf(String format, long v1, long v2, long v3) {
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147 vmMessageC(VM_MESSAGE_C, false, cstring(format), v1, v2, v3);
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148 }
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149
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150 /**
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151 * Analyzes a given value and prints information about it to the log stream.
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152 */
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153 public static void decipher(long value) {
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154 vmMessageC(VM_MESSAGE_C, false, Word.zero(), value, 0L, 0L);
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155 }
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156
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157 /**
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158 * Exits the VM with a given error message.
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159 * <p>
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160 * <b>Stubs must use this instead of {@link VMErrorNode#vmError(String, long)} to avoid an
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161 * object constant in a RuntimeStub.</b>
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162 *
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163 * @param message an error message
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164 */
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165 public static void fatal(String message) {
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166 vmMessageC(VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L);
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167 }
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168
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169 /**
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170 * Exits the VM with a given error message.
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171 * <p>
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172 * <b>Stubs must use this instead of {@link Log#printf(String, long, long, long)} to avoid an
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173 * object constant in a RuntimeStub.</b>
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174 *
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175 * @param format a C style printf format value
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176 * @param value the value associated with the first conversion specifier in {@code format}
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177 */
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178 public static void fatal(String format, long value) {
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179 vmMessageC(VM_MESSAGE_C, true, cstring(format), value, 0L, 0L);
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180 }
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181
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182 /**
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183 * Exits the VM with a given error message.
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184 * <p>
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185 * <b>Stubs must use this instead of {@link Log#printf(String, long, long, long)} to avoid an
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186 * object constant in a RuntimeStub.</b>
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187 *
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188 * @param format a C style printf format value
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189 * @param v1 the value associated with the first conversion specifier in {@code format}
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190 * @param v2 the value associated with the second conversion specifier in {@code format}
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191 */
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192 public static void fatal(String format, long v1, long v2) {
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193 vmMessageC(VM_MESSAGE_C, true, cstring(format), v1, v2, 0L);
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194 }
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195
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196 /**
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197 * Exits the VM with a given error message.
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198 * <p>
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199 * <b>Stubs must use this instead of {@link Log#printf(String, long, long, long)} to avoid an
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200 * object constant in a RuntimeStub.</b>
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201 *
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202 * @param format a C style printf format value
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203 * @param v1 the value associated with the first conversion specifier in {@code format}
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204 * @param v2 the value associated with the second conversion specifier in {@code format}
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205 * @param v3 the value associated with the third conversion specifier in {@code format}
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206 */
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207 public static void fatal(String format, long v1, long v2, long v3) {
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208 vmMessageC(VM_MESSAGE_C, true, cstring(format), v1, v2, v3);
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209 }
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210
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211 /**
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212 * Verifies that a given object value is well formed if {@code -XX:+VerifyOops} is enabled.
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213 */
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214 public static Object verifyObject(Object object) {
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215 if (verifyOops()) {
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216 Word verifyOopCounter = Word.unsigned(verifyOopCounterAddress());
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217 verifyOopCounter.writeInt(0, verifyOopCounter.readInt(0) + 1);
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218
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219 Pointer oop = Word.fromObject(object);
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220 if (object != null) {
11348
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221 BeginNode anchorNode = BeginNode.anchor();
9618
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222 // make sure object is 'reasonable'
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223 if (!oop.and(unsigned(verifyOopMask())).equal(unsigned(verifyOopBits()))) {
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224 fatal("oop not in heap: %p", oop.rawValue());
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225 }
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226
11337
39e83065426e Add anchors for loadHubs in verifyObject and monitor enter.
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227 Word klass = loadHubIntrinsic(object, getWordKind(), anchorNode);
9618
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228 if (klass.equal(Word.zero())) {
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229 fatal("klass for oop %p is null", oop.rawValue());
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230 }
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231 }
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232 }
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233 return object;
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234 }
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235
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236 @Fold
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237 private static long verifyOopCounterAddress() {
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238 return config().verifyOopCounterAddress;
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239 }
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240
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241 @Fold
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242 private static long verifyOopMask() {
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243 return config().verifyOopMask;
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244 }
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245
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246 @Fold
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247 private static long verifyOopBits() {
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248 return config().verifyOopBits;
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249 }
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250
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251 @Fold
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252 private static int hubOffset() {
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253 return config().hubOffset;
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254 }
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255 }