8362250: ARM32: forward_exception_entry missing return address

[bulasevich]

The ARM32 ForwardExceptionNode codegen needs to set the exception address to R5. And, since the #20437 change, the TailCall generator does not need this because the StubRoutines::forward_exception_entry function is not called there.

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Issue

• JDK-8362250: ARM32: forward_exception_entry missing return address (Bug - P3)

Reviewers

• Aleksey Shipilev (@shipilev - Reviewer)

Reviewing

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👋 Welcome back bulasevich! 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]

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

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

8362250: ARM32: forward_exception_entry missing return address

Reviewed-by: shade

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At the time when this comment was updated there had been 23 new commits pushed to the master branch:

• bdd37b0: 8361836: RISC-V: Relax min vector length to 32-bit for short vectors
• 5ddeb56: Merge
• 413c6bd: 8360147: Better Glyph drawing redux
• ... and 20 more: https://git.openjdk.org/jdk/compare/9697e5bf74bc7d7fbdf76eed42b8de3c05d69acc...master

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[openjdk]

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[mlbridge]

Webrevs

• 01: Full - Incremental (fd61008b)
• 00: Full (023c2216)

[shipilev]

Looks right, but I reckon you want to adjust format %{ ... in both match rules as well.

[bulasevich]

Thanks!
/integrate

[openjdk]

Going to push as commit 6ed8164.
Since your change was applied there have been 34 commits pushed to the master branch:

• 5e4a2ea: 8357653: Inner classes of type parameters emitted as raw types in signatures
• b787ad6: 8361401: Warnings for use of Sun APIs should not be mandatory
• 6b4a5ef: 8358641: C1 option -XX:+TimeEachLinearScan is broken
• ... and 31 more: https://git.openjdk.org/jdk/compare/9697e5bf74bc7d7fbdf76eed42b8de3c05d69acc...master

Your commit was automatically rebased without conflicts.

[openjdk]

@bulasevich Pushed as commit 6ed8164.

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

[bulasevich]

/backport :jdk25

[openjdk]

@bulasevich the backport was successfully created on the branch backport-bulasevich-6ed81641-jdk25 in my personal fork of openjdk/jdk. To create a pull request with this backport targeting openjdk/jdk:jdk25, just click the following link:

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The title of the pull request is automatically filled in correctly and below you find a suggestion for the pull request body:

Hi all,

This pull request contains a backport of commit 6ed81641 from the openjdk/jdk repository.

The commit being backported was authored by Boris Ulasevich on 16 Jul 2025 and was reviewed by Aleksey Shipilev.

Thanks!

If you need to update the source branch of the pull then run the following commands in a local clone of your personal fork of openjdk/jdk:

$ git fetch https://github.com/openjdk-bots/jdk.git backport-bulasevich-6ed81641-jdk25:backport-bulasevich-6ed81641-jdk25
$ git checkout backport-bulasevich-6ed81641-jdk25
# make changes
$ git add paths/to/changed/files
$ git commit --message 'Describe additional changes made'
$ git push https://github.com/openjdk-bots/jdk.git backport-bulasevich-6ed81641-jdk25