8255858: Add debug agent support for storing thread names

[plummercj]

Simple change to add a name field to ThreadNode to aide when debugging the debug agent. It's off by default. You need to add a #define DEBUG_THREADNAME to enable it.

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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-8255858: Add debug agent support for storing thread names

Reviewers

• Serguei Spitsyn (@sspitsyn - Reviewer)
• Alex Menkov (@alexmenkov - Reviewer)

Download

$ git fetch https://git.openjdk.java.net/jdk pull/1047/head:pull/1047
$ git checkout pull/1047

[bridgekeeper]

👋 Welcome back cjplummer! 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]

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

• serviceability

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[mlbridge]

Webrevs

• 00: Full (56ea903)

[sspitsyn]

Chris,
It looks good.
Thanks,
Serguei

[openjdk]

@plummercj 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:

8255858: Add debug agent support for storing thread names

Reviewed-by: sspitsyn, amenkov

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 55 new commits pushed to the master branch:

• a0ade22: 8255900: x86: Reduce impact when VerifyOops is disabled
• 29db1dc: 8255886: Shenandoah: Resolve cset address truncation and register clash in interpreter LRB
• 26e7ef7: 8252870: Finalize (remove "incubator" from) jpackage
• 804bd72: 8255128: linux x86 build failure with libJNIPoint.c
• 160759c: 8255838: Use 32-bit immediate movslq in macro assembler if 64-bit value fits in 32 bits on x86_64
• 94ace03: 8255863: Clean up test/jdk/java/lang/invoke/defineHiddenClass/BasicTest.java
• 2da9981: 8255862: Remove @SuppressWarnings from sun.misc.Unsafe
• 5348298: 8255855: appcds/jigsaw/NewModuleFinderTest.java test failed due to unexpected NPE
• c287170: 8254742: InputStream::readNBytes(int) result may contain zeros not in input
• 7dcaba6: 8253892: Disable misleading-indentation on clang as well as gcc
• ... and 45 more: https://git.openjdk.java.net/jdk/compare/184db64dfb711c9cba426fb0b45bea4c962489de...master

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.

[plummercj]

/integrate

[openjdk]

@plummercj Since your change was applied there have been 55 commits pushed to the master branch:

• a0ade22: 8255900: x86: Reduce impact when VerifyOops is disabled
• 29db1dc: 8255886: Shenandoah: Resolve cset address truncation and register clash in interpreter LRB
• 26e7ef7: 8252870: Finalize (remove "incubator" from) jpackage
• 804bd72: 8255128: linux x86 build failure with libJNIPoint.c
• 160759c: 8255838: Use 32-bit immediate movslq in macro assembler if 64-bit value fits in 32 bits on x86_64
• 94ace03: 8255863: Clean up test/jdk/java/lang/invoke/defineHiddenClass/BasicTest.java
• 2da9981: 8255862: Remove @SuppressWarnings from sun.misc.Unsafe
• 5348298: 8255855: appcds/jigsaw/NewModuleFinderTest.java test failed due to unexpected NPE
• c287170: 8254742: InputStream::readNBytes(int) result may contain zeros not in input
• 7dcaba6: 8253892: Disable misleading-indentation on clang as well as gcc
• ... and 45 more: https://git.openjdk.java.net/jdk/compare/184db64dfb711c9cba426fb0b45bea4c962489de...master

Your commit was automatically rebased without conflicts.

Pushed as commit 166c728.

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