RFR: 8351542: LIBMANAGEMENT_OPTIMIZATION remove special optimization settings [v3]

[Kevin Walls]

On Tue, 11 Mar 2025 14:14:16 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> On Linux there are some special settings for LIBMANAGEMENT_OPTIMIZATION that are most likely not needed any more and could be removed.
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Adjust jdk.management/Lib.gmk

Yes - this might be a really good change, to move the optimization level up, but we need to be clear what is happening and why, in case it throws up some new issues.

Yes, I would agree with handling the unused variable changes separately.  If somebody finds a problem with the opt level, it can be reverted without other complications.

(and separately, maybe it's worth handling the return value of GetOptionalSupport, which in our implementation really can't be -1 unless you call it  wrongly, but strange things happen and things change 8-) )

I can do some tiers of CI testing to see if any odd issues pop up.

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PR Comment: https://git.openjdk.org/jdk/pull/23966#issuecomment-2715367338