1 /*
2 * Copyright (c) 2016, 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 package jdk.tools.jaotc;
25
26 import java.nio.ByteBuffer;
27 import java.nio.ByteOrder;
28
29 import jdk.tools.jaotc.binformat.BinaryContainer;
30 import jdk.tools.jaotc.binformat.Relocation;
31 import jdk.tools.jaotc.binformat.Relocation.RelocType;
32 import jdk.tools.jaotc.binformat.Symbol;
33 import jdk.tools.jaotc.binformat.Symbol.Binding;
34 import jdk.tools.jaotc.binformat.Symbol.Kind;
35 import jdk.tools.jaotc.AOTCompiledClass.AOTKlassData;
36 import org.graalvm.compiler.code.DataSection;
37 import org.graalvm.compiler.hotspot.meta.HotSpotConstantLoadAction;
38
39 import jdk.vm.ci.code.TargetDescription;
40 import jdk.vm.ci.code.site.ConstantReference;
41 import jdk.vm.ci.code.site.DataPatch;
42 import jdk.vm.ci.code.site.DataSectionReference;
43 import jdk.vm.ci.code.site.Reference;
44 import jdk.vm.ci.hotspot.HotSpotMetaspaceConstant;
45 import jdk.vm.ci.hotspot.HotSpotObjectConstant;
46 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
47 import jdk.vm.ci.hotspot.HotSpotSentinelConstant;
48 import jdk.vm.ci.meta.VMConstant;
49
50 class DataPatchProcessor {
51
52 private final TargetDescription target;
53
54 private final BinaryContainer binaryContainer;
55
56 DataPatchProcessor(DataBuilder dataBuilder) {
57 this.target = dataBuilder.getBackend().getTarget();
58 this.binaryContainer = dataBuilder.getBinaryContainer();
59 }
60
61 /**
62 * Process a {@link DataPatch} generated by the compiler and create all needed binary section
63 * constructs.
64 */
65 void process(CompiledMethodInfo methodInfo, DataPatch dataPatch) {
66 Reference reference = dataPatch.reference;
67 if (reference instanceof ConstantReference) {
68 processConstantReference(dataPatch, methodInfo);
69 } else if (reference instanceof DataSectionReference) {
70 processDataSectionReference(dataPatch, methodInfo);
72 throw new InternalError("Unknown data patch reference: " + reference);
73 }
74 }
75
76 private void processConstantReference(DataPatch dataPatch, CompiledMethodInfo methodInfo) {
77 HotSpotConstantLoadAction action = (HotSpotConstantLoadAction) dataPatch.note;
78 ConstantReference constantReference = (ConstantReference) dataPatch.reference;
79 assert action != null : "action should be set";
80
81 VMConstant constant = constantReference.getConstant();
82 String targetSymbol = null;
83 String gotName = null;
84 if (constant instanceof HotSpotMetaspaceConstant) {
85 HotSpotMetaspaceConstant metaspaceConstant = (HotSpotMetaspaceConstant) constant;
86 if (metaspaceConstant.asResolvedJavaType() != null) {
87 HotSpotResolvedObjectType type = metaspaceConstant.asResolvedJavaType();
88 targetSymbol = type.getName();
89 gotName = ((action == HotSpotConstantLoadAction.INITIALIZE) ? "got.init." : "got.") + targetSymbol;
90 methodInfo.addDependentKlassData(binaryContainer, type);
91 } else if (metaspaceConstant.asResolvedJavaMethod() != null && action == HotSpotConstantLoadAction.LOAD_COUNTERS) {
92 targetSymbol = "counters." + MiscUtils.uniqueMethodName(metaspaceConstant.asResolvedJavaMethod());
93 gotName = "got." + targetSymbol;
94 binaryContainer.addMetaspaceSymbol(targetSymbol);
95 }
96 } else if (constant instanceof HotSpotObjectConstant) {
97 // String constant.
98 HotSpotObjectConstant oopConstant = (HotSpotObjectConstant) constant;
99 targetSymbol = "ldc." + oopConstant.toValueString();
100 Integer offset = binaryContainer.addOopSymbol(targetSymbol);
101 gotName = "got.ldc." + offset;
102 } else if (constant instanceof HotSpotSentinelConstant) {
103 targetSymbol = "state.M" + methodInfo.getCodeId();
104 gotName = "got." + targetSymbol;
105 }
106
107 assert gotName != null : "Unknown constant type: " + constant;
108
109 InstructionDecoder decoder = InstructionDecoder.getInstructionDecoder(target);
110 decoder.decodePosition(methodInfo.getCompilationResult().getTargetCode(), dataPatch.pcOffset);
111 int instructionEndOffset = decoder.currentEndOfInstruction();
112
113 int textBaseOffset = methodInfo.getTextSectionOffset();
114 int relocOffset = textBaseOffset + instructionEndOffset;
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1 /*
2 * Copyright (c) 2016, 2017, 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 package jdk.tools.jaotc;
25
26 import java.nio.ByteBuffer;
27 import java.nio.ByteOrder;
28
29 import jdk.tools.jaotc.binformat.BinaryContainer;
30 import jdk.tools.jaotc.binformat.Relocation;
31 import jdk.tools.jaotc.binformat.Relocation.RelocType;
32 import jdk.tools.jaotc.binformat.Symbol;
33 import jdk.tools.jaotc.binformat.Symbol.Binding;
34 import jdk.tools.jaotc.binformat.Symbol.Kind;
35 import org.graalvm.compiler.code.DataSection;
36 import org.graalvm.compiler.hotspot.meta.HotSpotConstantLoadAction;
37
38 import jdk.vm.ci.code.TargetDescription;
39 import jdk.vm.ci.code.site.ConstantReference;
40 import jdk.vm.ci.code.site.DataPatch;
41 import jdk.vm.ci.code.site.DataSectionReference;
42 import jdk.vm.ci.code.site.Reference;
43 import jdk.vm.ci.hotspot.HotSpotMetaspaceConstant;
44 import jdk.vm.ci.hotspot.HotSpotObjectConstant;
45 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
46 import jdk.vm.ci.hotspot.HotSpotSentinelConstant;
47 import jdk.vm.ci.meta.VMConstant;
48
49 final class DataPatchProcessor {
50
51 private final TargetDescription target;
52
53 private final BinaryContainer binaryContainer;
54
55 DataPatchProcessor(DataBuilder dataBuilder) {
56 this.target = dataBuilder.getBackend().getTarget();
57 this.binaryContainer = dataBuilder.getBinaryContainer();
58 }
59
60 /**
61 * Process a {@link DataPatch} generated by the compiler and create all needed binary section
62 * constructs.
63 */
64 void process(CompiledMethodInfo methodInfo, DataPatch dataPatch) {
65 Reference reference = dataPatch.reference;
66 if (reference instanceof ConstantReference) {
67 processConstantReference(dataPatch, methodInfo);
68 } else if (reference instanceof DataSectionReference) {
69 processDataSectionReference(dataPatch, methodInfo);
71 throw new InternalError("Unknown data patch reference: " + reference);
72 }
73 }
74
75 private void processConstantReference(DataPatch dataPatch, CompiledMethodInfo methodInfo) {
76 HotSpotConstantLoadAction action = (HotSpotConstantLoadAction) dataPatch.note;
77 ConstantReference constantReference = (ConstantReference) dataPatch.reference;
78 assert action != null : "action should be set";
79
80 VMConstant constant = constantReference.getConstant();
81 String targetSymbol = null;
82 String gotName = null;
83 if (constant instanceof HotSpotMetaspaceConstant) {
84 HotSpotMetaspaceConstant metaspaceConstant = (HotSpotMetaspaceConstant) constant;
85 if (metaspaceConstant.asResolvedJavaType() != null) {
86 HotSpotResolvedObjectType type = metaspaceConstant.asResolvedJavaType();
87 targetSymbol = type.getName();
88 gotName = ((action == HotSpotConstantLoadAction.INITIALIZE) ? "got.init." : "got.") + targetSymbol;
89 methodInfo.addDependentKlassData(binaryContainer, type);
90 } else if (metaspaceConstant.asResolvedJavaMethod() != null && action == HotSpotConstantLoadAction.LOAD_COUNTERS) {
91 targetSymbol = "counters." + JavaMethodInfo.uniqueMethodName(metaspaceConstant.asResolvedJavaMethod());
92 gotName = "got." + targetSymbol;
93 binaryContainer.addCountersSymbol(targetSymbol);
94 }
95 } else if (constant instanceof HotSpotObjectConstant) {
96 // String constant.
97 HotSpotObjectConstant oopConstant = (HotSpotObjectConstant) constant;
98 targetSymbol = "ldc." + oopConstant.toValueString();
99 Integer offset = binaryContainer.addOopSymbol(targetSymbol);
100 gotName = "got.ldc." + offset;
101 } else if (constant instanceof HotSpotSentinelConstant) {
102 targetSymbol = "state.M" + methodInfo.getCodeId();
103 gotName = "got." + targetSymbol;
104 }
105
106 assert gotName != null : "Unknown constant type: " + constant;
107
108 InstructionDecoder decoder = InstructionDecoder.getInstructionDecoder(target);
109 decoder.decodePosition(methodInfo.getCompilationResult().getTargetCode(), dataPatch.pcOffset);
110 int instructionEndOffset = decoder.currentEndOfInstruction();
111
112 int textBaseOffset = methodInfo.getTextSectionOffset();
113 int relocOffset = textBaseOffset + instructionEndOffset;
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