Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.code/src/jdk/vm/ci/code/DebugInfo.java @ 24218:719853999215 jvmci-0.32
Merge with jdk8u141-b15
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Mon, 14 Aug 2017 23:20:38 +0200 |
| parents | 9e1235406b59 |
| children |
| rev | line source |
|---|---|
| 22054 | 1 /* |
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22232
b34312ac04a8
Make static type of virtualObjectMapping as narrow as possible.
Roland Schatz <roland.schatz@oracle.com>
parents:
22054
diff
changeset
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2 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved. |
| 22054 | 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 */ | |
|
22672
1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22569
diff
changeset
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23 package jdk.vm.ci.code; |
| 22054 | 24 |
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22569
ec96f33a101d
updated imports to be explicit and added checkstyle rule to forbid * imports
Doug Simon <doug.simon@oracle.com>
parents:
22236
diff
changeset
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25 import java.util.Objects; |
| 22054 | 26 |
| 27 /** | |
| 28 * Represents the debugging information for a particular point of execution. This information | |
| 29 * includes: | |
| 30 * <ul> | |
| 31 * <li>a {@linkplain #getBytecodePosition() bytecode position}</li> | |
| 32 * <li>a reference map for registers and stack slots in the current frame</li> | |
| 33 * <li>a map from bytecode locals and operand stack slots to their values or locations from which | |
| 34 * their values can be read</li> | |
| 35 * <li>a map from the registers (in the caller's frame) to the slots where they are saved in the | |
| 36 * current frame</li> | |
| 37 * </ul> | |
| 38 */ | |
| 39 public final class DebugInfo { | |
| 40 | |
| 41 private final BytecodePosition bytecodePosition; | |
|
22236
9c811a5e6a62
Split HotSpotReferenceMap into separate builder and result class, and move the builder class from jvmci to graal.
Roland Schatz <roland.schatz@oracle.com>
parents:
22232
diff
changeset
|
42 private ReferenceMap referenceMap; |
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22232
b34312ac04a8
Make static type of virtualObjectMapping as narrow as possible.
Roland Schatz <roland.schatz@oracle.com>
parents:
22054
diff
changeset
|
43 @SuppressWarnings("unused") private final VirtualObject[] virtualObjectMapping; |
| 22054 | 44 private RegisterSaveLayout calleeSaveInfo; |
| 45 | |
| 46 /** | |
| 47 * Creates a new {@link DebugInfo} from the given values. | |
| 48 * | |
| 49 * @param codePos the {@linkplain BytecodePosition code position} or {@linkplain BytecodeFrame | |
| 50 * frame} info | |
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23700
9e1235406b59
[Findbugs] various warnings reported for JVMCI sources (JDK-8159613)
Doug Simon <doug.simon@oracle.com>
parents:
22672
diff
changeset
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51 * @param virtualObjectMapping the mapping of {@link VirtualObject}s to their real values. This |
|
9e1235406b59
[Findbugs] various warnings reported for JVMCI sources (JDK-8159613)
Doug Simon <doug.simon@oracle.com>
parents:
22672
diff
changeset
|
52 * array is now owned by this object and must not be mutated by the caller. |
| 22054 | 53 */ |
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23700
9e1235406b59
[Findbugs] various warnings reported for JVMCI sources (JDK-8159613)
Doug Simon <doug.simon@oracle.com>
parents:
22672
diff
changeset
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54 @SuppressFBWarnings(value = "EI_EXPOSE_REP2", justification = "caller transfers ownership of `virtualObjectMapping`") |
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22236
9c811a5e6a62
Split HotSpotReferenceMap into separate builder and result class, and move the builder class from jvmci to graal.
Roland Schatz <roland.schatz@oracle.com>
parents:
22232
diff
changeset
|
55 public DebugInfo(BytecodePosition codePos, VirtualObject[] virtualObjectMapping) { |
| 22054 | 56 this.bytecodePosition = codePos; |
| 57 this.virtualObjectMapping = virtualObjectMapping; | |
| 58 } | |
| 59 | |
| 60 public DebugInfo(BytecodePosition codePos) { | |
|
22236
9c811a5e6a62
Split HotSpotReferenceMap into separate builder and result class, and move the builder class from jvmci to graal.
Roland Schatz <roland.schatz@oracle.com>
parents:
22232
diff
changeset
|
61 this(codePos, null); |
|
9c811a5e6a62
Split HotSpotReferenceMap into separate builder and result class, and move the builder class from jvmci to graal.
Roland Schatz <roland.schatz@oracle.com>
parents:
22232
diff
changeset
|
62 } |
|
9c811a5e6a62
Split HotSpotReferenceMap into separate builder and result class, and move the builder class from jvmci to graal.
Roland Schatz <roland.schatz@oracle.com>
parents:
22232
diff
changeset
|
63 |
|
9c811a5e6a62
Split HotSpotReferenceMap into separate builder and result class, and move the builder class from jvmci to graal.
Roland Schatz <roland.schatz@oracle.com>
parents:
22232
diff
changeset
|
64 public void setReferenceMap(ReferenceMap referenceMap) { |
|
9c811a5e6a62
Split HotSpotReferenceMap into separate builder and result class, and move the builder class from jvmci to graal.
Roland Schatz <roland.schatz@oracle.com>
parents:
22232
diff
changeset
|
65 this.referenceMap = referenceMap; |
| 22054 | 66 } |
| 67 | |
| 68 /** | |
| 69 * @return {@code true} if this debug information has a frame | |
| 70 */ | |
| 71 public boolean hasFrame() { | |
| 72 return getBytecodePosition() instanceof BytecodeFrame; | |
| 73 } | |
| 74 | |
| 75 /** | |
| 76 * Gets the deoptimization information for each inlined frame (if available). | |
| 77 * | |
| 78 * @return {@code null} if no frame de-opt info is {@linkplain #hasFrame() available} | |
| 79 */ | |
| 80 public BytecodeFrame frame() { | |
| 81 if (hasFrame()) { | |
| 82 return (BytecodeFrame) getBytecodePosition(); | |
| 83 } | |
| 84 return null; | |
| 85 } | |
| 86 | |
| 87 @Override | |
| 88 public String toString() { | |
| 89 return CodeUtil.append(new StringBuilder(100), this, null).toString(); | |
| 90 } | |
| 91 | |
| 92 /** | |
| 93 * @return The code position (including all inlined methods) of this debug info. If this is a | |
| 94 * {@link BytecodeFrame} instance, then it is also the deoptimization information for | |
| 95 * each inlined frame. | |
| 96 */ | |
| 97 public BytecodePosition getBytecodePosition() { | |
| 98 return bytecodePosition; | |
| 99 } | |
| 100 | |
| 101 public ReferenceMap getReferenceMap() { | |
| 102 return referenceMap; | |
| 103 } | |
| 104 | |
| 105 /** | |
| 106 * Sets the map from the registers (in the caller's frame) to the slots where they are saved in | |
| 107 * the current frame. | |
| 108 */ | |
| 109 public void setCalleeSaveInfo(RegisterSaveLayout calleeSaveInfo) { | |
| 110 this.calleeSaveInfo = calleeSaveInfo; | |
| 111 } | |
| 112 | |
| 113 /** | |
| 114 * Gets the map from the registers (in the caller's frame) to the slots where they are saved in | |
| 115 * the current frame. If no such information is available, {@code null} is returned. | |
| 116 */ | |
| 117 public RegisterSaveLayout getCalleeSaveInfo() { | |
| 118 return calleeSaveInfo; | |
| 119 } | |
| 120 | |
| 121 @Override | |
| 122 public int hashCode() { | |
| 123 throw new UnsupportedOperationException("hashCode"); | |
| 124 } | |
| 125 | |
| 126 @Override | |
| 127 public boolean equals(Object obj) { | |
| 128 if (this == obj) { | |
| 129 return true; | |
| 130 } | |
| 131 if (obj instanceof DebugInfo) { | |
| 132 DebugInfo that = (DebugInfo) obj; | |
| 133 if (Objects.equals(this.bytecodePosition, that.bytecodePosition) && Objects.equals(this.calleeSaveInfo, that.calleeSaveInfo) && Objects.equals(this.referenceMap, that.referenceMap)) { | |
| 134 return true; | |
| 135 } | |
| 136 } | |
| 137 return false; | |
| 138 } | |
| 139 } |