RFR: 8308094: Add a compilation timeout flag to catch long running compilations [v2]

[Manuel Hässig]

On Tue, 5 Aug 2025 04:04:01 GMT, Dean Long <dlong at openjdk.org> wrote:

>> Manuel Hässig has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
>> 
>>  - Merge branch 'master' into JDK-8308094-timeout
>>  - Fix SIGALRM test
>>  - Add timeout functionality to compiler threads
>
> This looks correct, but would it be possible to move the Linux-specific code out of src/hotspot/share?

Thank you for reviewing this PR, @dean-long.

For v2 I factored the Linux-specific code out of hotspot/share, moved the disarm above the if, and removed the acquire/release.

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PR Comment: https://git.openjdk.org/jdk/pull/26023#issuecomment-3160140787