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