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.lang.reflect.Field; 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 HotSpotJVMCIRuntimeProvider runtime; 45 public final HotSpotVMConfig config; 46 protected final TargetDescription target; 47 protected final RegisterConfig regConfig; 48 49 public HotSpotCodeCacheProvider(HotSpotJVMCIRuntimeProvider runtime, HotSpotVMConfig config, TargetDescription target, RegisterConfig regConfig) { 50 this.runtime = runtime; 51 this.config = config; 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 Field[] fields = runtime.getConfig().getClass().getDeclaredFields(); 60 for (Field f : fields) { 61 if (f.getName().startsWith("MARKID_")) { 62 f.setAccessible(true); 63 try { 64 if (f.getInt(runtime.getConfig()) == markId) { 65 return f.getName(); 66 } 67 } catch (Exception e) { 68 } 69 } 70 } 71 return CodeCacheProvider.super.getMarkName(mark); 72 } 73 74 /** 75 * Decodes a call target to a mnemonic if possible. 76 */ 77 @Override 78 public String getTargetName(Call call) { 79 Field[] fields = runtime.getConfig().getClass().getDeclaredFields(); 80 for (Field f : fields) { 81 if (f.getName().endsWith("Stub")) { 82 f.setAccessible(true); 83 try { 84 Object address = f.get(runtime.getConfig()); 85 if (address.equals(call.target)) { 86 return f.getName() + ":0x" + Long.toHexString((Long) address); 87 } 88 } catch (Exception e) { 89 } 90 } 91 } 92 return CodeCacheProvider.super.getTargetName(call); 93 } 94 95 @Override 96 public RegisterConfig getRegisterConfig() { 97 return regConfig; 98 } 99 100 @Override 101 public int getMinimumOutgoingSize() { 102 return runtime.getConfig().runtimeCallStackSize; 103 } 104 105 private InstalledCode logOrDump(InstalledCode installedCode, CompiledCode compiledCode) { 106 ((HotSpotJVMCIRuntime) runtime).notifyInstall(this, installedCode, compiledCode); 107 return installedCode; 108 } 109 110 public InstalledCode installCode(ResolvedJavaMethod method, CompiledCode compiledCode, InstalledCode installedCode, SpeculationLog log, boolean isDefault) { 111 InstalledCode resultInstalledCode; 112 if (installedCode == null) { 113 if (method == null) { 114 // Must be a stub 115 resultInstalledCode = new HotSpotRuntimeStub(((HotSpotCompiledCode) compiledCode).getName()); 116 } else { 117 resultInstalledCode = new HotSpotNmethod((HotSpotResolvedJavaMethod) method, ((HotSpotCompiledCode) compiledCode).getName(), isDefault); 118 } 119 } else { 120 resultInstalledCode = installedCode; 121 } 122 123 HotSpotSpeculationLog speculationLog = (log != null && log.hasSpeculations()) ? (HotSpotSpeculationLog) log : null; 124 125 int result = runtime.getCompilerToVM().installCode(target, (HotSpotCompiledCode) compiledCode, resultInstalledCode, speculationLog); 126 if (result != config.codeInstallResultOk) { 127 String resultDesc = config.getCodeInstallResultDescription(result); 128 if (compiledCode instanceof HotSpotCompiledNmethod) { 129 HotSpotCompiledNmethod compiledNmethod = (HotSpotCompiledNmethod) compiledCode; 130 String msg = compiledNmethod.getInstallationFailureMessage(); 131 if (msg != null) { 132 msg = String.format("Code installation failed: %s%n%s", resultDesc, msg); 133 } else { 134 msg = String.format("Code installation failed: %s", resultDesc); 135 } 136 if (result == config.codeInstallResultDependenciesInvalid) { 137 throw new AssertionError(resultDesc + " " + msg); 138 } 139 throw new BailoutException(result != config.codeInstallResultDependenciesFailed, msg); 140 } else { 141 throw new BailoutException("Error installing %s: %s", ((HotSpotCompiledCode) compiledCode).getName(), resultDesc); 142 } 143 } 144 return logOrDump(resultInstalledCode, compiledCode); 145 } 146 147 public void invalidateInstalledCode(InstalledCode installedCode) { 148 runtime.getCompilerToVM().invalidateInstalledCode(installedCode); 149 } 150 151 @Override 152 public TargetDescription getTarget() { 153 return target; 154 } 155 156 public String disassemble(InstalledCode code) { 157 if (code.isValid()) { 158 return runtime.getCompilerToVM().disassembleCodeBlob(code); 159 } 160 return null; 161 } 162 163 public SpeculationLog createSpeculationLog() { 164 return new HotSpotSpeculationLog(); 165 } 166 167 public long getMaxCallTargetOffset(long address) { 168 return runtime.getCompilerToVM().getMaxCallTargetOffset(address); 169 } 170 171 public boolean shouldDebugNonSafepoints() { 172 return runtime.getCompilerToVM().shouldDebugNonSafepoints(); 173 } 174 175 public int interpreterFrameSize(BytecodeFrame pos) { 176 return runtime.getCompilerToVM().interpreterFrameSize(pos); 177 } 178 179 /** 180 * Resets all compilation statistics. 181 */ 182 public void resetCompilationStatistics() { 183 runtime.getCompilerToVM().resetCompilationStatistics(); 184 } 185 }