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comparison jvmci/jdk.vm.ci.hotspot.aarch64/src/jdk/vm/ci/hotspot/aarch64/AArch64HotSpotJVMCIBackendFactory.java @ 22759:577a4a8caa72

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8143072: [JVMCI] Port JVMCI to AArch64
author twisti
date Thu, 24 Dec 2015 09:50:27 -1000
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children f2206f5bb62e
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22758:a130b51efb07 22759:577a4a8caa72
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 import jdk.vm.ci.service.ServiceProvider;
45
46 @ServiceProvider(HotSpotJVMCIBackendFactory.class)
47 public class AArch64HotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFactory {
48
49 protected EnumSet<AArch64.CPUFeature> computeFeatures(@SuppressWarnings("unused") HotSpotVMConfig config) {
50 // Configure the feature set using the HotSpot flag settings.
51 EnumSet<AArch64.CPUFeature> features = EnumSet.noneOf(AArch64.CPUFeature.class);
52 return features;
53 }
54
55 protected EnumSet<AArch64.Flag> computeFlags(@SuppressWarnings("unused") HotSpotVMConfig config) {
56 EnumSet<AArch64.Flag> flags = EnumSet.noneOf(AArch64.Flag.class);
57 return flags;
58 }
59
60 protected TargetDescription createTarget(HotSpotVMConfig config) {
61 final int stackFrameAlignment = 16;
62 final int implicitNullCheckLimit = 4096;
63 final boolean inlineObjects = true;
64 Architecture arch = new AArch64(computeFeatures(config), computeFlags(config));
65 return new TargetDescription(arch, true, stackFrameAlignment, implicitNullCheckLimit, inlineObjects);
66 }
67
68 protected HotSpotConstantReflectionProvider createConstantReflection(HotSpotJVMCIRuntimeProvider runtime) {
69 return new HotSpotConstantReflectionProvider(runtime);
70 }
71
72 protected RegisterConfig createRegisterConfig(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target) {
73 return new AArch64HotSpotRegisterConfig(target.arch, runtime.getConfig());
74 }
75
76 protected HotSpotCodeCacheProvider createCodeCache(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target, RegisterConfig regConfig) {
77 return new HotSpotCodeCacheProvider(runtime, runtime.getConfig(), target, regConfig);
78 }
79
80 protected HotSpotMetaAccessProvider createMetaAccess(HotSpotJVMCIRuntimeProvider runtime) {
81 return new HotSpotMetaAccessProvider(runtime);
82 }
83
84 @Override
85 public String getArchitecture() {
86 return "aarch64";
87 }
88
89 @Override
90 public String toString() {
91 return "JVMCIBackend:" + getArchitecture();
92 }
93
94 @SuppressWarnings("try")
95 public JVMCIBackend createJVMCIBackend(HotSpotJVMCIRuntimeProvider runtime, JVMCIBackend host) {
96
97 assert host == null;
98 TargetDescription target = createTarget(runtime.getConfig());
99
100 RegisterConfig regConfig;
101 HotSpotCodeCacheProvider codeCache;
102 ConstantReflectionProvider constantReflection;
103 HotSpotMetaAccessProvider metaAccess;
104 StackIntrospection stackIntrospection;
105 try (InitTimer t = timer("create providers")) {
106 try (InitTimer rt = timer("create MetaAccess provider")) {
107 metaAccess = createMetaAccess(runtime);
108 }
109 try (InitTimer rt = timer("create RegisterConfig")) {
110 regConfig = createRegisterConfig(runtime, target);
111 }
112 try (InitTimer rt = timer("create CodeCache provider")) {
113 codeCache = createCodeCache(runtime, target, regConfig);
114 }
115 try (InitTimer rt = timer("create ConstantReflection provider")) {
116 constantReflection = createConstantReflection(runtime);
117 }
118 try (InitTimer rt = timer("create StackIntrospection provider")) {
119 stackIntrospection = new HotSpotStackIntrospection(runtime);
120 }
121 }
122 try (InitTimer rt = timer("instantiate backend")) {
123 return createBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
124 }
125 }
126
127 protected JVMCIBackend createBackend(HotSpotMetaAccessProvider metaAccess, HotSpotCodeCacheProvider codeCache, ConstantReflectionProvider constantReflection, StackIntrospection stackIntrospection) {
128 return new JVMCIBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
129 }
130 }