RFR: 8365909: [REDO] Add a compilation timeout flag to catch long running compilations

[Manuel Hässig]

On Thu, 21 Aug 2025 20:56:42 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR adds a timeout for compilation tasks based on timer signals on Linux debug builds.
>> 
>> This PR is a redo of #25872 with fixes for the failing test.
>> 
>> Testing:
>>  - [x] Github Actions
>>  - [x] tier1,tier2 plus internal testing on all Oracle supproted platforms
>>  - [x] tier3,tier4 on linux-x64-debug
>>  - [x] tier1,tier2,tier3,tier4 on linux-x64-debug with `-XX:CompileTaskTimeout=60000`
>
> Please explain the test fix.

Thank you for your reviews, @dean-long and @chhagedorn.

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PR Comment: https://git.openjdk.org/jdk/pull/26882#issuecomment-3224167084