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annotate graal/com.oracle.graal.truffle.hotspot/src/com/oracle/graal/truffle/hotspot/nfi/HotSpotNativeFunctionInterface.java @ 21554:b1530a6cce8c

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renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 23:21:15 +0200
parents 5324104ac4f3
children 48c1ebd24120
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1 /*
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2 * Copyright (c) 2014, 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
ed3a1471e133 Add the Graal Native Function Interface
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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.truffle.hotspot.nfi;
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24
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25 import static com.oracle.graal.api.code.CodeUtil.*;
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26 import static com.oracle.graal.truffle.hotspot.nfi.NativeCallStubGraphBuilder.*;
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27 import static com.oracle.jvmci.common.UnsafeAccess.*;
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28
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29 import com.oracle.graal.api.code.*;
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30 import com.oracle.graal.api.code.CallingConvention.Type;
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31 import com.oracle.graal.api.meta.*;
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32 import com.oracle.graal.compiler.*;
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33 import com.oracle.graal.compiler.target.*;
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34 import com.oracle.graal.hotspot.meta.*;
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35 import com.oracle.graal.lir.asm.*;
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36 import com.oracle.graal.lir.phases.*;
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37 import com.oracle.graal.nodes.*;
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38 import com.oracle.graal.phases.*;
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39 import com.oracle.graal.phases.tiers.*;
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40 import com.oracle.jvmci.debug.*;
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41 import com.oracle.jvmci.debug.Debug.Scope;
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42 import com.oracle.jvmci.hotspot.*;
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43 import com.oracle.nfi.api.*;
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44
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45 public class HotSpotNativeFunctionInterface implements NativeFunctionInterface {
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46
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47 private final HotSpotProviders providers;
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48 private final Backend backend;
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49 private final HotSpotNativeLibraryHandle rtldDefault;
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50 private final HotSpotNativeFunctionPointer libraryLoadFunctionPointer;
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51 private final HotSpotNativeFunctionPointer functionLookupFunctionPointer;
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52 private final RawNativeCallNodeFactory factory;
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53
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54 private HotSpotNativeFunctionHandle libraryLookupFunctionHandle;
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55 private HotSpotNativeFunctionHandle dllLookupFunctionHandle;
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56
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57 public HotSpotNativeFunctionInterface(HotSpotProviders providers, RawNativeCallNodeFactory factory, Backend backend, long dlopen, long dlsym, long rtldDefault) {
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58 this.rtldDefault = rtldDefault == HotSpotVMConfig.INVALID_RTLD_DEFAULT_HANDLE ? null : new HotSpotNativeLibraryHandle("RTLD_DEFAULT", rtldDefault);
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59 this.providers = providers;
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60 assert backend != null;
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61 this.backend = backend;
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62 this.factory = factory;
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63 this.libraryLoadFunctionPointer = new HotSpotNativeFunctionPointer(dlopen, "os::dll_load");
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64 this.functionLookupFunctionPointer = new HotSpotNativeFunctionPointer(dlsym, "os::dll_lookup");
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65 }
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66
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67 @Override
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68 public HotSpotNativeLibraryHandle getLibraryHandle(String libPath) {
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69 if (libraryLookupFunctionHandle == null) {
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70 libraryLookupFunctionHandle = createHandle(libraryLoadFunctionPointer, long.class, long.class, long.class, int.class);
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71 }
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72
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73 int ebufLen = 1024;
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74 // Allocating a single chunk for both the error message buffer and the
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75 // file name simplifies deallocation below.
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76 long buffer = unsafe.allocateMemory(ebufLen + libPath.length() + 1);
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77 long ebuf = buffer;
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78 long libPathCString = writeCString(libPath, buffer + ebufLen);
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79 try {
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80 long handle = (long) libraryLookupFunctionHandle.call(libPathCString, ebuf, ebufLen);
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81 if (handle == 0) {
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82 throw new UnsatisfiedLinkError(libPath);
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83 }
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84 return new HotSpotNativeLibraryHandle(libPath, handle);
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85 } finally {
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86 unsafe.freeMemory(buffer);
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87 }
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88 }
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89
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90 @Override
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91 public HotSpotNativeFunctionHandle getFunctionHandle(NativeLibraryHandle library, String name, Class<?> returnType, Class<?>... argumentTypes) {
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92 HotSpotNativeFunctionPointer functionPointer = lookupFunctionPointer(name, library, false);
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93 return createHandle(functionPointer, returnType, argumentTypes);
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94 }
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95
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96 @Override
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97 public HotSpotNativeFunctionHandle getFunctionHandle(NativeLibraryHandle[] libraries, String name, Class<?> returnType, Class<?>... argumentTypes) {
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98 HotSpotNativeFunctionPointer functionPointer = null;
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99 for (NativeLibraryHandle libraryHandle : libraries) {
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100 functionPointer = lookupFunctionPointer(name, libraryHandle, false);
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101 if (functionPointer != null) {
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102 return createHandle(functionPointer, returnType, argumentTypes);
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103 }
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104 }
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105 // Fall back to default library path
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106 return getFunctionHandle(name, returnType, argumentTypes);
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107 }
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109 @Override
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110 public HotSpotNativeFunctionHandle getFunctionHandle(String name, Class<?> returnType, Class<?>... argumentTypes) {
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111 if (rtldDefault == null) {
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112 throw new UnsatisfiedLinkError(name);
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113 }
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114 return getFunctionHandle(rtldDefault, name, returnType, argumentTypes);
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115 }
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116
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117 private HotSpotNativeFunctionPointer lookupFunctionPointer(String name, NativeLibraryHandle library, boolean linkageErrorIfMissing) {
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118 if (name == null || library == null) {
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119 throw new NullPointerException();
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120 }
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121
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122 if (dllLookupFunctionHandle == null) {
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123 dllLookupFunctionHandle = createHandle(functionLookupFunctionPointer, long.class, long.class, long.class);
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124 }
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125 long nameCString = createCString(name);
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126 try {
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127 long functionPointer = (long) dllLookupFunctionHandle.call(((HotSpotNativeLibraryHandle) library).value, nameCString);
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128 if (functionPointer == 0L) {
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129 if (!linkageErrorIfMissing) {
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130 return null;
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131 }
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132 throw new UnsatisfiedLinkError(name);
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133 }
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134 return new HotSpotNativeFunctionPointer(functionPointer, name);
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135 } finally {
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136 unsafe.freeMemory(nameCString);
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137 }
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138 }
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139
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140 @Override
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141 public HotSpotNativeFunctionHandle getFunctionHandle(NativeFunctionPointer functionPointer, Class<?> returnType, Class<?>... argumentTypes) {
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142 if (!(functionPointer instanceof HotSpotNativeFunctionPointer)) {
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143 throw new UnsatisfiedLinkError(functionPointer.getName());
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144 }
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145 return createHandle(functionPointer, returnType, argumentTypes);
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146 }
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147
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148 private HotSpotNativeFunctionHandle createHandle(NativeFunctionPointer functionPointer, Class<?> returnType, Class<?>... argumentTypes) {
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149 HotSpotNativeFunctionPointer hs = (HotSpotNativeFunctionPointer) functionPointer;
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150 if (hs != null) {
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151 InstalledCode code = installNativeFunctionStub(hs.value, returnType, argumentTypes);
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152 return new HotSpotNativeFunctionHandle(code, hs.name, argumentTypes);
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153 } else {
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154 return null;
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155 }
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156 }
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157
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158 /**
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159 * Creates and installs a stub for calling a native function.
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160 */
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161 private InstalledCode installNativeFunctionStub(long functionPointer, Class<?> returnType, Class<?>... argumentTypes) {
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162 StructuredGraph g = getGraph(providers, factory, functionPointer, returnType, argumentTypes);
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163 Suites suites = providers.getSuites().createSuites();
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164 LIRSuites lirSuites = providers.getSuites().createLIRSuites();
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165 PhaseSuite<HighTierContext> phaseSuite = backend.getSuites().getDefaultGraphBuilderSuite().copy();
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166 CallingConvention cc = getCallingConvention(providers.getCodeCache(), Type.JavaCallee, g.method(), false);
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167 CompilationResult compResult = GraalCompiler.compileGraph(g, cc, g.method(), providers, backend, backend.getTarget(), phaseSuite, OptimisticOptimizations.ALL,
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168 DefaultProfilingInfo.get(TriState.UNKNOWN), null, suites, lirSuites, new CompilationResult(), CompilationResultBuilderFactory.Default);
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169 InstalledCode installedCode;
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170 try (Scope s = Debug.scope("CodeInstall", providers.getCodeCache(), g.method())) {
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171 installedCode = providers.getCodeCache().addMethod(g.method(), compResult, null, null);
17211
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172 } catch (Throwable e) {
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173 throw Debug.handle(e);
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174 }
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175 return installedCode;
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176 }
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177
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178 @Override
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179 public HotSpotNativeFunctionPointer getFunctionPointer(NativeLibraryHandle[] libraries, String name) {
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180 for (NativeLibraryHandle libraryHandle : libraries) {
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181 HotSpotNativeFunctionPointer functionPointer = lookupFunctionPointer(name, libraryHandle, false);
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182 if (functionPointer != null) {
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183 return functionPointer;
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184 }
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185 }
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186 // Fall back to default library path
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187 if (rtldDefault == null) {
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188 throw new UnsatisfiedLinkError(name);
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189 }
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190 return lookupFunctionPointer(name, rtldDefault, false);
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191 }
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192
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parents: 13905
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193 public boolean isDefaultLibrarySearchSupported() {
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194 return rtldDefault != null;
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195 }
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196
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197 @Override
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198 public NativeFunctionPointer getNativeFunctionPointerFromRawValue(long rawValue) {
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199 return new HotSpotNativeFunctionPointer(rawValue, null);
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200 }
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201 }