8256320: ZGC: Update zDebug to support UseCompressedClassPointers

[stefank]

Update debugging script to support compressed klass pointers.

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Testing

	Linux x64	Linux x86	Windows x64	macOS x64
Build	✔️ (5/5 passed)	✔️ (2/2 passed)	✔️ (2/2 passed)	✔️ (2/2 passed)
Test (tier1)	✔️ (9/9 passed)	✔️ (9/9 passed)	✔️ (9/9 passed)	✔️ (9/9 passed)

Issue

• JDK-8256320: ZGC: Update zDebug to support UseCompressedClassPointers

Reviewers

• Per Liden (@pliden - Reviewer)

Download

$ git fetch https://git.openjdk.java.net/jdk pull/1198/head:pull/1198
$ git checkout pull/1198

[bridgekeeper]

👋 Welcome back stefank! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@stefank The following label will be automatically applied to this pull request:

• hotspot-gc

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[mlbridge]

Webrevs

• 00: Full (c34d894)

[openjdk]

@stefank This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8256320: ZGC: Update zDebug to support UseCompressedClassPointers

Reviewed-by: pliden

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 6 new commits pushed to the master branch:

• 5973e91: 8253005: Add @throws IOException in javadoc for HttpEchange.sendResponseHeaders
• 8c31bd2: 8256275: Optimized build is broken
• b0c28fa: 8256011: Shenandoah: Don't resurrect finalizably reachable objects
• 41139e3: 8255964: Add all details to jstack log in jtreg timeout handler
• b4d0186: 8253525: Implement getInstanceSize/sizeOf intrinsics
• ea576dd: 8254887: C2: assert(cl->trip_count() > 0) failed: peeling a fully unrolled loop

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[stefank]

/integrate

[openjdk]

@stefank Since your change was applied there have been 6 commits pushed to the master branch:

• 5973e91: 8253005: Add @throws IOException in javadoc for HttpEchange.sendResponseHeaders
• 8c31bd2: 8256275: Optimized build is broken
• b0c28fa: 8256011: Shenandoah: Don't resurrect finalizably reachable objects
• 41139e3: 8255964: Add all details to jstack log in jtreg timeout handler
• b4d0186: 8253525: Implement getInstanceSize/sizeOf intrinsics
• ea576dd: 8254887: C2: assert(cl->trip_count() > 0) failed: peeling a fully unrolled loop

Your commit was automatically rebased without conflicts.

Pushed as commit c8dd0b5.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.