1 /* 2 * Copyright (c) 2011, 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 24 25 package org.graalvm.compiler.hotspot; 26 27 import java.lang.reflect.Field; 28 import java.lang.reflect.Modifier; 29 30 import org.graalvm.compiler.api.replacements.Fold; 31 import org.graalvm.compiler.api.replacements.Fold.InjectedParameter; 32 import org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext; 33 import org.graalvm.compiler.options.OptionValues; 34 35 import jdk.vm.ci.common.JVMCIError; 36 import jdk.vm.ci.hotspot.HotSpotVMConfigAccess; 37 import jdk.vm.ci.hotspot.HotSpotVMConfigStore; 38 import jdk.vm.ci.meta.MetaAccessProvider; 39 import jdk.vm.ci.services.Services; 40 41 /** 42 * Base class of class hierarchy for accessing HotSpot VM configuration. 43 */ 44 public abstract class GraalHotSpotVMConfigBase extends HotSpotVMConfigAccess { 45 46 GraalHotSpotVMConfigBase(HotSpotVMConfigStore store) { 47 super(store); 48 assert this instanceof GraalHotSpotVMConfig; 49 versioned = new GraalHotSpotVMConfigVersioned(store); 50 assert checkVersioned(); 51 } 52 53 private boolean checkVersioned() { 54 Class<? extends GraalHotSpotVMConfigVersioned> c = versioned.getClass(); 55 for (Field field : c.getDeclaredFields()) { 56 int modifiers = field.getModifiers(); 57 if (!Modifier.isStatic(modifiers)) { 58 // javac inlines non-static final fields which means 59 // versioned values are ignored in non-flattened Graal 60 assert !Modifier.isFinal(modifiers) : "Non-static field in " + c.getName() + " must not be final: " + field.getName(); 61 } 62 } 63 return true; 64 } 65 66 private static String getProperty(String name, String def) { 67 String value = Services.getSavedProperties().get(name); 68 if (value == null) { 69 return def; 70 } 71 return value; 72 } 73 74 private static String getProperty(String name) { 75 return getProperty(name, null); 76 } 77 78 /** 79 * Contains values that are different between JDK versions. 80 */ 81 protected final GraalHotSpotVMConfigVersioned versioned; 82 83 /** 84 * Sentinel value to use for an {@linkplain InjectedParameter injected} 85 * {@link GraalHotSpotVMConfig} parameter to a {@linkplain Fold foldable} method. 86 */ 87 public static final GraalHotSpotVMConfig INJECTED_VMCONFIG = null; 88 public static final MetaAccessProvider INJECTED_METAACCESS = null; 89 public static final OptionValues INJECTED_OPTIONVALUES = null; 90 public static final IntrinsicContext INJECTED_INTRINSIC_CONTEXT = null; 91 92 public final String osName = getHostOSName(); 93 public final String osArch = getHostArchitectureName(); 94 public final boolean windowsOs = getProperty("os.name", "").startsWith("Windows"); 95 public final boolean linuxOs = getProperty("os.name", "").startsWith("Linux"); 96 97 /** 98 * Gets the host operating system name. 99 */ 100 private static String getHostOSName() { 101 String osName = getProperty("os.name"); 102 switch (osName) { 103 case "Linux": 104 osName = "linux"; 105 break; 106 case "SunOS": 107 osName = "solaris"; 108 break; 109 case "Mac OS X": 110 osName = "bsd"; 111 break; 112 default: 113 // Of course Windows is different... 114 if (osName.startsWith("Windows")) { 115 osName = "windows"; 116 } else { 117 throw new JVMCIError("Unexpected OS name: " + osName); 118 } 119 } 120 return osName; 121 } 122 123 private static String getHostArchitectureName() { 124 String arch = getProperty("os.arch"); 125 switch (arch) { 126 case "x86_64": 127 arch = "amd64"; 128 break; 129 case "sparcv9": 130 arch = "sparc"; 131 break; 132 } 133 return arch; 134 } 135 136 protected final Integer intRequiredOnAMD64 = osArch.equals("amd64") ? null : 0; 137 protected final Long longRequiredOnAMD64 = osArch.equals("amd64") ? null : 0L; 138 }