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22759
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1 /*
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2 * Copyright (c) 2015, 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
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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 jdk.vm.ci.hotspot.aarch64;
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24
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25 import static jdk.vm.ci.inittimer.InitTimer.timer;
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26
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27 import java.util.EnumSet;
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28
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29 import jdk.vm.ci.aarch64.AArch64;
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30 import jdk.vm.ci.code.Architecture;
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31 import jdk.vm.ci.code.RegisterConfig;
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32 import jdk.vm.ci.code.TargetDescription;
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33 import jdk.vm.ci.code.stack.StackIntrospection;
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34 import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider;
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35 import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
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36 import jdk.vm.ci.hotspot.HotSpotJVMCIBackendFactory;
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37 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider;
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38 import jdk.vm.ci.hotspot.HotSpotMetaAccessProvider;
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39 import jdk.vm.ci.hotspot.HotSpotStackIntrospection;
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40 import jdk.vm.ci.hotspot.HotSpotVMConfig;
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41 import jdk.vm.ci.inittimer.InitTimer;
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42 import jdk.vm.ci.meta.ConstantReflectionProvider;
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43 import jdk.vm.ci.runtime.JVMCIBackend;
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44 import jdk.vm.ci.service.ServiceProvider;
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45
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46 @ServiceProvider(HotSpotJVMCIBackendFactory.class)
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47 public class AArch64HotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFactory {
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48
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49 protected EnumSet<AArch64.CPUFeature> computeFeatures(@SuppressWarnings("unused") HotSpotVMConfig config) {
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50 // Configure the feature set using the HotSpot flag settings.
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51 EnumSet<AArch64.CPUFeature> features = EnumSet.noneOf(AArch64.CPUFeature.class);
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52 return features;
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53 }
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54
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55 protected EnumSet<AArch64.Flag> computeFlags(@SuppressWarnings("unused") HotSpotVMConfig config) {
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56 EnumSet<AArch64.Flag> flags = EnumSet.noneOf(AArch64.Flag.class);
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57 return flags;
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58 }
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59
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60 protected TargetDescription createTarget(HotSpotVMConfig config) {
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61 final int stackFrameAlignment = 16;
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62 final int implicitNullCheckLimit = 4096;
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63 final boolean inlineObjects = true;
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64 Architecture arch = new AArch64(computeFeatures(config), computeFlags(config));
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65 return new TargetDescription(arch, true, stackFrameAlignment, implicitNullCheckLimit, inlineObjects);
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66 }
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67
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68 protected HotSpotConstantReflectionProvider createConstantReflection(HotSpotJVMCIRuntimeProvider runtime) {
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69 return new HotSpotConstantReflectionProvider(runtime);
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70 }
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71
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72 protected RegisterConfig createRegisterConfig(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target) {
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73 return new AArch64HotSpotRegisterConfig(target.arch, runtime.getConfig());
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74 }
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75
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76 protected HotSpotCodeCacheProvider createCodeCache(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target, RegisterConfig regConfig) {
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77 return new HotSpotCodeCacheProvider(runtime, runtime.getConfig(), target, regConfig);
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78 }
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79
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80 protected HotSpotMetaAccessProvider createMetaAccess(HotSpotJVMCIRuntimeProvider runtime) {
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81 return new HotSpotMetaAccessProvider(runtime);
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82 }
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83
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84 @Override
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85 public String getArchitecture() {
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86 return "aarch64";
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87 }
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88
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89 @Override
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90 public String toString() {
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91 return "JVMCIBackend:" + getArchitecture();
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92 }
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93
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94 @SuppressWarnings("try")
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95 public JVMCIBackend createJVMCIBackend(HotSpotJVMCIRuntimeProvider runtime, JVMCIBackend host) {
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96
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97 assert host == null;
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98 TargetDescription target = createTarget(runtime.getConfig());
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99
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100 RegisterConfig regConfig;
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101 HotSpotCodeCacheProvider codeCache;
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102 ConstantReflectionProvider constantReflection;
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103 HotSpotMetaAccessProvider metaAccess;
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104 StackIntrospection stackIntrospection;
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105 try (InitTimer t = timer("create providers")) {
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106 try (InitTimer rt = timer("create MetaAccess provider")) {
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107 metaAccess = createMetaAccess(runtime);
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108 }
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109 try (InitTimer rt = timer("create RegisterConfig")) {
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110 regConfig = createRegisterConfig(runtime, target);
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111 }
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112 try (InitTimer rt = timer("create CodeCache provider")) {
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113 codeCache = createCodeCache(runtime, target, regConfig);
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114 }
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115 try (InitTimer rt = timer("create ConstantReflection provider")) {
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116 constantReflection = createConstantReflection(runtime);
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117 }
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118 try (InitTimer rt = timer("create StackIntrospection provider")) {
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119 stackIntrospection = new HotSpotStackIntrospection(runtime);
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120 }
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121 }
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122 try (InitTimer rt = timer("instantiate backend")) {
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123 return createBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
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124 }
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125 }
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126
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127 protected JVMCIBackend createBackend(HotSpotMetaAccessProvider metaAccess, HotSpotCodeCacheProvider codeCache, ConstantReflectionProvider constantReflection, StackIntrospection stackIntrospection) {
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128 return new JVMCIBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
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129 }
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130 }
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