8331298: avoid alignment checks in UBSAN enabled build

[MBaesken]

---

Progress

• JDK-8331298 needs maintainer approval
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8331298: avoid alignment checks in UBSAN enabled build (Bug - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk22u.git pull/204/head:pull/204
$ git checkout pull/204

Update a local copy of the PR:
$ git checkout pull/204
$ git pull https://git.openjdk.org/jdk22u.git pull/204/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 204

View PR using the GUI difftool:
$ git pr show -t 204

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk22u/pull/204.diff

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[bridgekeeper]

👋 Welcome back mbaesken! 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]

@MBaesken 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:

8331298: avoid alignment checks in UBSAN enabled build

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 2 new commits pushed to the master branch:

• f5ce46f: 8329961: Buffer overflow in os::Linux::kernel_version
• 0f3b3fa: 8331942: On Linux aarch64, CDS archives should be using 64K alignment by default

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.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (794280ab)

[MBaesken]

/integrate

[openjdk]

Going to push as commit 6e66ee1.
Since your change was applied there have been 5 commits pushed to the master branch:

• 9e3344e: 8329223: Parallel: Parallel GC resizes heap even if -Xms = -Xmx
• 5177264: 8316138: Add GlobalSign 2 TLS root certificates
• f1eba2c: 8331894: [jdk22] compiler/print/CompileCommandMemLimit.java fails after backporting JDK-8325095
• f5ce46f: 8329961: Buffer overflow in os::Linux::kernel_version
• 0f3b3fa: 8331942: On Linux aarch64, CDS archives should be using 64K alignment by default

Your commit was automatically rebased without conflicts.

[openjdk]

@MBaesken Pushed as commit 6e66ee1.

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