1 /* 2 * Copyright (c) 2013, 2016, 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 package jdk.vm.ci.hotspot; 24 25 import java.util.Map; 26 27 import jdk.vm.ci.code.BailoutException; 28 import jdk.vm.ci.code.BytecodeFrame; 29 import jdk.vm.ci.code.CodeCacheProvider; 30 import jdk.vm.ci.code.CompiledCode; 31 import jdk.vm.ci.code.InstalledCode; 32 import jdk.vm.ci.code.RegisterConfig; 33 import jdk.vm.ci.code.TargetDescription; 34 import jdk.vm.ci.code.site.Call; 35 import jdk.vm.ci.code.site.Mark; 36 import jdk.vm.ci.meta.ResolvedJavaMethod; 37 import jdk.vm.ci.meta.SpeculationLog; 38 39 /** 40 * HotSpot implementation of {@link CodeCacheProvider}. 41 */ 42 public class HotSpotCodeCacheProvider implements CodeCacheProvider { 43 44 protected final HotSpotJVMCIRuntime runtime; 45 private final HotSpotVMConfig config; 46 protected final TargetDescription target; 47 protected final RegisterConfig regConfig; 48 49 public HotSpotCodeCacheProvider(HotSpotJVMCIRuntime runtime, TargetDescription target, RegisterConfig regConfig) { 50 this.runtime = runtime; 51 this.config = runtime.getConfig(); 52 this.target = target; 53 this.regConfig = regConfig; 54 } 55 56 @Override 57 public String getMarkName(Mark mark) { 58 int markId = (int) mark.id; 59 HotSpotVMConfigStore store = runtime.getConfigStore(); 60 for (Map.Entry<String, Long> e : store.getConstants().entrySet()) { 61 String name = e.getKey(); 62 if (name.startsWith("MARKID_") && e.getValue() == markId) { 63 return name; 64 } 65 } 66 return CodeCacheProvider.super.getMarkName(mark); 67 } 68 69 /** 70 * Decodes a call target to a mnemonic if possible. 71 */ 72 @Override 73 public String getTargetName(Call call) { 74 if (call.target instanceof HotSpotForeignCallTarget) { 75 long address = ((HotSpotForeignCallTarget) call.target).address; 76 HotSpotVMConfigStore store = runtime.getConfigStore(); 77 for (Map.Entry<String, VMField> e : store.getFields().entrySet()) { 78 VMField field = e.getValue(); 79 if (field.isStatic() && field.value != null && field.value instanceof Long && ((Long) field.value) == address) { 80 return e.getValue() + ":0x" + Long.toHexString(address); 81 } 82 } 83 } 84 return CodeCacheProvider.super.getTargetName(call); 85 } 86 87 @Override 88 public RegisterConfig getRegisterConfig() { 89 return regConfig; 90 } 91 92 @Override 93 public int getMinimumOutgoingSize() { 94 return config.runtimeCallStackSize; 95 } 96 97 private InstalledCode logOrDump(InstalledCode installedCode, CompiledCode compiledCode) { 98 runtime.notifyInstall(this, installedCode, compiledCode); 99 return installedCode; 100 } 101 102 @Override 103 public InstalledCode installCode(ResolvedJavaMethod method, CompiledCode compiledCode, InstalledCode installedCode, SpeculationLog log, boolean isDefault) { 104 InstalledCode resultInstalledCode; 105 if (installedCode == null) { 106 if (method == null) { 107 // Must be a stub 108 resultInstalledCode = new HotSpotRuntimeStub(((HotSpotCompiledCode) compiledCode).getName()); 109 } else { 110 resultInstalledCode = new HotSpotNmethod((HotSpotResolvedJavaMethod) method, ((HotSpotCompiledCode) compiledCode).getName(), isDefault); 111 } 112 } else { 113 resultInstalledCode = installedCode; 114 } 115 116 HotSpotSpeculationLog speculationLog = (log != null && log.hasSpeculations()) ? (HotSpotSpeculationLog) log : null; 117 118 int result = runtime.getCompilerToVM().installCode(target, (HotSpotCompiledCode) compiledCode, resultInstalledCode, speculationLog); 119 if (result != config.codeInstallResultOk) { 120 String resultDesc = config.getCodeInstallResultDescription(result); 121 if (compiledCode instanceof HotSpotCompiledNmethod) { 122 HotSpotCompiledNmethod compiledNmethod = (HotSpotCompiledNmethod) compiledCode; 123 String msg = compiledNmethod.getInstallationFailureMessage(); 124 if (msg != null) { 125 msg = String.format("Code installation failed: %s%n%s", resultDesc, msg); 126 } else { 127 msg = String.format("Code installation failed: %s", resultDesc); 128 } 129 if (result == config.codeInstallResultDependenciesInvalid) { 130 throw new AssertionError(resultDesc + " " + msg); 131 } 132 throw new BailoutException(result != config.codeInstallResultDependenciesFailed, msg); 133 } else { 134 throw new BailoutException("Error installing %s: %s", ((HotSpotCompiledCode) compiledCode).getName(), resultDesc); 135 } 136 } 137 return logOrDump(resultInstalledCode, compiledCode); 138 } 139 140 @Override 141 public void invalidateInstalledCode(InstalledCode installedCode) { 142 runtime.getCompilerToVM().invalidateInstalledCode(installedCode); 143 } 144 145 @Override 146 public TargetDescription getTarget() { 147 return target; 148 } 149 150 public String disassemble(InstalledCode code) { 151 if (code.isValid()) { 152 return runtime.getCompilerToVM().disassembleCodeBlob(code); 153 } 154 return null; 155 } 156 157 @Override 158 public SpeculationLog createSpeculationLog() { 159 return new HotSpotSpeculationLog(); 160 } 161 162 @Override 163 public long getMaxCallTargetOffset(long address) { 164 return runtime.getCompilerToVM().getMaxCallTargetOffset(address); 165 } 166 167 @Override 168 public boolean shouldDebugNonSafepoints() { 169 return runtime.getCompilerToVM().shouldDebugNonSafepoints(); 170 } 171 172 public int interpreterFrameSize(BytecodeFrame pos) { 173 return runtime.getCompilerToVM().interpreterFrameSize(pos); 174 } 175 176 /** 177 * Resets all compilation statistics. 178 */ 179 public void resetCompilationStatistics() { 180 runtime.getCompilerToVM().resetCompilationStatistics(); 181 } 182 }