Mercurial > hg > graal-jvmci-8
comparison jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotCompiledCode.java @ 22672:1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 08 Oct 2015 17:28:41 -0700 |
parents | jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotCompiledCode.java@545590b1ab83 |
children | eb6d572dfa61 |
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22671:97f30e4d0e95 | 22672:1bbd4a7c274b |
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1 /* | |
2 * Copyright (c) 2011, 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; | |
24 | |
25 import java.nio.ByteBuffer; | |
26 import java.nio.ByteOrder; | |
27 import java.util.Arrays; | |
28 import java.util.Comparator; | |
29 import java.util.List; | |
30 import java.util.stream.Stream; | |
31 import java.util.stream.Stream.Builder; | |
32 | |
33 import jdk.vm.ci.code.BytecodeFrame; | |
34 import jdk.vm.ci.code.CompilationResult; | |
35 import jdk.vm.ci.code.CompilationResult.CodeAnnotation; | |
36 import jdk.vm.ci.code.CompilationResult.CodeComment; | |
37 import jdk.vm.ci.code.CompilationResult.DataPatch; | |
38 import jdk.vm.ci.code.CompilationResult.ExceptionHandler; | |
39 import jdk.vm.ci.code.CompilationResult.Infopoint; | |
40 import jdk.vm.ci.code.CompilationResult.JumpTable; | |
41 import jdk.vm.ci.code.CompilationResult.Mark; | |
42 import jdk.vm.ci.code.CompilationResult.Site; | |
43 import jdk.vm.ci.code.DataSection; | |
44 import jdk.vm.ci.meta.Assumptions.Assumption; | |
45 import jdk.vm.ci.meta.ResolvedJavaMethod; | |
46 | |
47 /** | |
48 * A {@link CompilationResult} with additional HotSpot-specific information required for installing | |
49 * the code in HotSpot's code cache. | |
50 */ | |
51 public class HotSpotCompiledCode { | |
52 | |
53 public final String name; | |
54 public final Site[] sites; | |
55 public final ExceptionHandler[] exceptionHandlers; | |
56 public final Comment[] comments; | |
57 public final Assumption[] assumptions; | |
58 | |
59 public final byte[] targetCode; | |
60 public final int targetCodeSize; | |
61 | |
62 public final byte[] dataSection; | |
63 public final int dataSectionAlignment; | |
64 public final DataPatch[] dataSectionPatches; | |
65 | |
66 public final int totalFrameSize; | |
67 public final int customStackAreaOffset; | |
68 | |
69 /** | |
70 * The list of the methods whose bytecodes were used as input to the compilation. If | |
71 * {@code null}, then the compilation did not record method dependencies. Otherwise, the first | |
72 * element of this array is the root method of the compilation. | |
73 */ | |
74 public final ResolvedJavaMethod[] methods; | |
75 | |
76 public static class Comment { | |
77 | |
78 public final String text; | |
79 public final int pcOffset; | |
80 | |
81 public Comment(int pcOffset, String text) { | |
82 this.text = text; | |
83 this.pcOffset = pcOffset; | |
84 } | |
85 } | |
86 | |
87 public HotSpotCompiledCode(CompilationResult compResult) { | |
88 name = compResult.getName(); | |
89 sites = getSortedSites(compResult); | |
90 if (compResult.getExceptionHandlers().isEmpty()) { | |
91 exceptionHandlers = null; | |
92 } else { | |
93 exceptionHandlers = compResult.getExceptionHandlers().toArray(new ExceptionHandler[compResult.getExceptionHandlers().size()]); | |
94 } | |
95 List<CodeAnnotation> annotations = compResult.getAnnotations(); | |
96 comments = new Comment[annotations.size()]; | |
97 if (!annotations.isEmpty()) { | |
98 for (int i = 0; i < comments.length; i++) { | |
99 CodeAnnotation annotation = annotations.get(i); | |
100 String text; | |
101 if (annotation instanceof CodeComment) { | |
102 CodeComment codeComment = (CodeComment) annotation; | |
103 text = codeComment.value; | |
104 } else if (annotation instanceof JumpTable) { | |
105 JumpTable jumpTable = (JumpTable) annotation; | |
106 text = "JumpTable [" + jumpTable.low + " .. " + jumpTable.high + "]"; | |
107 } else { | |
108 text = annotation.toString(); | |
109 } | |
110 comments[i] = new Comment(annotation.position, text); | |
111 } | |
112 } | |
113 assumptions = compResult.getAssumptions(); | |
114 assert validateFrames(); | |
115 | |
116 targetCode = compResult.getTargetCode(); | |
117 targetCodeSize = compResult.getTargetCodeSize(); | |
118 | |
119 DataSection data = compResult.getDataSection(); | |
120 data.finalizeLayout(); | |
121 dataSection = new byte[data.getSectionSize()]; | |
122 | |
123 ByteBuffer buffer = ByteBuffer.wrap(dataSection).order(ByteOrder.nativeOrder()); | |
124 Builder<DataPatch> patchBuilder = Stream.builder(); | |
125 data.buildDataSection(buffer, patchBuilder); | |
126 | |
127 dataSectionAlignment = data.getSectionAlignment(); | |
128 dataSectionPatches = patchBuilder.build().toArray(len -> new DataPatch[len]); | |
129 | |
130 totalFrameSize = compResult.getTotalFrameSize(); | |
131 customStackAreaOffset = compResult.getCustomStackAreaOffset(); | |
132 | |
133 methods = compResult.getMethods(); | |
134 } | |
135 | |
136 /** | |
137 * Ensure that all the frames passed into HotSpot are properly formatted with an empty or | |
138 * illegal slot following double word slots. | |
139 */ | |
140 private boolean validateFrames() { | |
141 for (Site site : sites) { | |
142 if (site instanceof Infopoint) { | |
143 Infopoint info = (Infopoint) site; | |
144 if (info.debugInfo != null) { | |
145 BytecodeFrame frame = info.debugInfo.frame(); | |
146 assert frame == null || frame.validateFormat(); | |
147 } | |
148 } | |
149 } | |
150 return true; | |
151 } | |
152 | |
153 static class SiteComparator implements Comparator<Site> { | |
154 | |
155 public int compare(Site s1, Site s2) { | |
156 if (s1.pcOffset == s2.pcOffset && (s1 instanceof Mark ^ s2 instanceof Mark)) { | |
157 return s1 instanceof Mark ? -1 : 1; | |
158 } | |
159 return s1.pcOffset - s2.pcOffset; | |
160 } | |
161 } | |
162 | |
163 private static Site[] getSortedSites(CompilationResult target) { | |
164 List<?>[] lists = new List<?>[]{target.getInfopoints(), target.getDataPatches(), target.getMarks()}; | |
165 int count = 0; | |
166 for (List<?> list : lists) { | |
167 count += list.size(); | |
168 } | |
169 Site[] result = new Site[count]; | |
170 int pos = 0; | |
171 for (List<?> list : lists) { | |
172 for (Object elem : list) { | |
173 result[pos++] = (Site) elem; | |
174 } | |
175 } | |
176 Arrays.sort(result, new SiteComparator()); | |
177 return result; | |
178 } | |
179 | |
180 @Override | |
181 public String toString() { | |
182 return name; | |
183 } | |
184 } |