1 /* 2 * Copyright (c) 2013, 2019, 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 import java.util.Objects; 27 28 import jdk.vm.ci.code.BailoutException; 29 import jdk.vm.ci.code.BytecodeFrame; 30 import jdk.vm.ci.code.CodeCacheProvider; 31 import jdk.vm.ci.code.CompiledCode; 32 import jdk.vm.ci.code.InstalledCode; 33 import jdk.vm.ci.code.RegisterConfig; 34 import jdk.vm.ci.code.TargetDescription; 35 import jdk.vm.ci.code.site.Call; 36 import jdk.vm.ci.code.site.Mark; 37 import jdk.vm.ci.meta.ResolvedJavaMethod; 38 import jdk.vm.ci.meta.SpeculationLog; 39 40 /** 41 * HotSpot implementation of {@link CodeCacheProvider}. 42 */ 43 public class HotSpotCodeCacheProvider implements CodeCacheProvider { 44 45 protected final HotSpotJVMCIRuntime runtime; 46 private final HotSpotVMConfig config; 47 protected final TargetDescription target; 48 protected final RegisterConfig regConfig; 49 50 public HotSpotCodeCacheProvider(HotSpotJVMCIRuntime runtime, TargetDescription target, RegisterConfig regConfig) { 51 this.runtime = runtime; 52 this.config = runtime.getConfig(); 53 this.target = target; 54 this.regConfig = regConfig; 55 } 56 57 @Override 58 public String getMarkName(Mark mark) { 59 int markId = (int) mark.id; 60 HotSpotVMConfigStore store = runtime.getConfigStore(); 61 for (Map.Entry<String, Long> e : store.getConstants().entrySet()) { 62 String name = e.getKey(); 63 if (name.startsWith("MARKID_") && e.getValue() == markId) { 64 return name; 65 } 66 } 67 return CodeCacheProvider.super.getMarkName(mark); 68 } 69 70 /** 71 * Decodes a call target to a mnemonic if possible. 72 */ 73 @Override 74 public String getTargetName(Call call) { 75 if (call.target instanceof HotSpotForeignCallTarget) { 76 long address = ((HotSpotForeignCallTarget) call.target).address; 77 HotSpotVMConfigStore store = runtime.getConfigStore(); 78 for (Map.Entry<String, VMField> e : store.getFields().entrySet()) { 79 VMField field = e.getValue(); 80 if (field.isStatic() && field.value != null && field.value instanceof Long && ((Long) field.value) == address) { 81 return e.getValue() + ":0x" + Long.toHexString(address); 82 } 83 } 84 } 85 return CodeCacheProvider.super.getTargetName(call); 86 } 87 88 @Override 89 public RegisterConfig getRegisterConfig() { 90 return regConfig; 91 } 92 93 @Override 94 public int getMinimumOutgoingSize() { 95 return config.runtimeCallStackSize; 96 } 97 98 private InstalledCode logOrDump(InstalledCode installedCode, CompiledCode compiledCode) { 99 runtime.notifyInstall(this, installedCode, compiledCode); 100 return installedCode; 101 } 102 103 @Override 104 public InstalledCode installCode(ResolvedJavaMethod method, CompiledCode compiledCode, InstalledCode installedCode, SpeculationLog log, boolean isDefault) { 105 InstalledCode resultInstalledCode; 106 if (installedCode != null) { 107 throw new IllegalArgumentException("InstalledCode argument must be null"); 108 } 109 HotSpotCompiledCode hsCompiledCode = (HotSpotCompiledCode) compiledCode; 110 String name = hsCompiledCode.getName(); 111 HotSpotCompiledNmethod hsCompiledNmethod = null; 112 if (method == null) { 113 // Must be a stub 114 resultInstalledCode = new HotSpotRuntimeStub(name); 115 } else { 116 hsCompiledNmethod = (HotSpotCompiledNmethod) hsCompiledCode; 117 HotSpotResolvedJavaMethodImpl hsMethod = (HotSpotResolvedJavaMethodImpl) method; 118 resultInstalledCode = new HotSpotNmethod(hsMethod, name, isDefault, hsCompiledNmethod.id); 119 } 120 121 HotSpotSpeculationLog speculationLog = null; 122 if (log != null) { 123 if (log.hasSpeculations()) { 124 speculationLog = (HotSpotSpeculationLog) log; 125 } 126 } 127 128 byte[] speculations; 129 long failedSpeculationsAddress; 130 if (speculationLog != null) { 131 speculations = speculationLog.getFlattenedSpeculations(true); 132 failedSpeculationsAddress = speculationLog.getFailedSpeculationsAddress(); 133 } else { 134 speculations = new byte[0]; 135 failedSpeculationsAddress = 0L; 136 } 137 int result = runtime.getCompilerToVM().installCode(target, (HotSpotCompiledCode) compiledCode, resultInstalledCode, failedSpeculationsAddress, speculations); 138 if (result != config.codeInstallResultOk) { 139 String resultDesc = config.getCodeInstallResultDescription(result); 140 if (hsCompiledNmethod != null) { 141 String msg = hsCompiledNmethod.getInstallationFailureMessage(); 142 if (msg != null) { 143 msg = String.format("Code installation failed: %s%n%s", resultDesc, msg); 144 } else { 145 msg = String.format("Code installation failed: %s", resultDesc); 146 } 147 if (result == config.codeInstallResultDependenciesInvalid) { 148 throw new AssertionError(resultDesc + " " + msg); 149 } 150 throw new BailoutException(result != config.codeInstallResultDependenciesFailed, msg); 151 } else { 152 throw new BailoutException("Error installing %s: %s", ((HotSpotCompiledCode) compiledCode).getName(), resultDesc); 153 } 154 } 155 return logOrDump(resultInstalledCode, compiledCode); 156 } 157 158 @Override 159 public void invalidateInstalledCode(InstalledCode installedCode) { 160 if (installedCode instanceof HotSpotNmethod) { 161 runtime.getCompilerToVM().invalidateHotSpotNmethod((HotSpotNmethod) installedCode); 162 } else { 163 throw new IllegalArgumentException("Cannot invalidate a " + Objects.requireNonNull(installedCode).getClass().getName()); 164 } 165 } 166 167 @Override 168 public TargetDescription getTarget() { 169 return target; 170 } 171 172 public String disassemble(InstalledCode code) { 173 if (code.isValid()) { 174 return runtime.getCompilerToVM().disassembleCodeBlob(code); 175 } 176 return null; 177 } 178 179 @Override 180 public SpeculationLog createSpeculationLog() { 181 return new HotSpotSpeculationLog(); 182 } 183 184 @Override 185 public long getMaxCallTargetOffset(long address) { 186 return runtime.getCompilerToVM().getMaxCallTargetOffset(address); 187 } 188 189 @Override 190 public boolean shouldDebugNonSafepoints() { 191 return runtime.getCompilerToVM().shouldDebugNonSafepoints(); 192 } 193 194 public int interpreterFrameSize(BytecodeFrame pos) { 195 return runtime.getCompilerToVM().interpreterFrameSize(pos); 196 } 197 198 /** 199 * Resets all compilation statistics. 200 */ 201 public void resetCompilationStatistics() { 202 runtime.getCompilerToVM().resetCompilationStatistics(); 203 } 204 }