forked from openjdk/jdk
-
Notifications
You must be signed in to change notification settings - Fork 2
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
8339307: jhsdb jstack could not trace FFM upcall frame
Reviewed-by: cjplummer, jvernee
- Loading branch information
Showing
12 changed files
with
447 additions
and
10 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
119 changes: 119 additions & 0 deletions
119
src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/code/UpcallStub.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| /* | ||
| * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * This code is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License version 2 only, as | ||
| * published by the Free Software Foundation. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| * or visit www.oracle.com if you need additional information or have any | ||
| * questions. | ||
| * | ||
| */ | ||
|
|
||
| package sun.jvm.hotspot.code; | ||
|
|
||
| import java.util.*; | ||
| import sun.jvm.hotspot.debugger.*; | ||
| import sun.jvm.hotspot.runtime.*; | ||
| import sun.jvm.hotspot.types.*; | ||
| import sun.jvm.hotspot.utilities.Observable; | ||
| import sun.jvm.hotspot.utilities.Observer; | ||
|
|
||
| public class UpcallStub extends RuntimeBlob { | ||
|
|
||
| private static CIntegerField frameDataOffsetField; | ||
| private static AddressField lastJavaFPField; | ||
| private static AddressField lastJavaSPField; | ||
| private static AddressField lastJavaPCField; | ||
|
|
||
| static { | ||
| VM.registerVMInitializedObserver(new Observer() { | ||
| public void update(Observable o, Object data) { | ||
| initialize(VM.getVM().getTypeDataBase()); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| private static void initialize(TypeDataBase db) { | ||
| Type type = db.lookupType("UpcallStub"); | ||
| frameDataOffsetField = type.getCIntegerField("_frame_data_offset"); | ||
|
|
||
| Type anchorType = db.lookupType("JavaFrameAnchor"); | ||
| lastJavaSPField = anchorType.getAddressField("_last_Java_sp"); | ||
| lastJavaPCField = anchorType.getAddressField("_last_Java_pc"); | ||
|
|
||
| try { | ||
| lastJavaFPField = anchorType.getAddressField("_last_Java_fp"); | ||
| } catch (Exception e) { | ||
| // Some platforms (e.g. PPC64) does not have this field. | ||
| lastJavaFPField = null; | ||
| } | ||
| } | ||
|
|
||
| public UpcallStub(Address addr) { | ||
| super(addr); | ||
| } | ||
|
|
||
| protected Address getJavaFrameAnchor(Frame frame) { | ||
| var frameDataOffset = frameDataOffsetField.getValue(addr); | ||
| var frameDataAddr = frame.getUnextendedSP().addOffsetTo(frameDataOffset); | ||
| var frameData = VMObjectFactory.newObject(FrameData.class, frameDataAddr); | ||
| return frameData.getJavaFrameAnchor(); | ||
| } | ||
|
|
||
| public Address getLastJavaSP(Frame frame) { | ||
| return lastJavaSPField.getValue(getJavaFrameAnchor(frame)); | ||
| } | ||
|
|
||
| public Address getLastJavaFP(Frame frame) { | ||
| return lastJavaFPField == null ? null : lastJavaFPField.getValue(getJavaFrameAnchor(frame)); | ||
| } | ||
|
|
||
| public Address getLastJavaPC(Frame frame) { | ||
| return lastJavaPCField.getValue(getJavaFrameAnchor(frame)); | ||
| } | ||
|
|
||
| public boolean isUpcallStub() { | ||
| return true; | ||
| } | ||
|
|
||
| public static class FrameData extends VMObject { | ||
|
|
||
| private static AddressField jfaField; | ||
|
|
||
| static { | ||
| VM.registerVMInitializedObserver(new Observer() { | ||
| public void update(Observable o, Object data) { | ||
| initialize(VM.getVM().getTypeDataBase()); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| private static void initialize(TypeDataBase db) { | ||
| Type type = db.lookupType("UpcallStub::FrameData"); | ||
| jfaField = type.getAddressField("jfa"); | ||
| } | ||
|
|
||
| public FrameData(Address addr) { | ||
| super(addr); | ||
| } | ||
|
|
||
| public Address getJavaFrameAnchor() { | ||
| return addr.addOffsetTo(jfaField.getOffset()); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.