8335801: [11u] Backport of 8210988 to 11u removes gcc warnings

[gnu-andrew]

The backport of 8210988 contained a number of issues, the most serious of which is it completely removed warnings from gcc builds by changing WARNING_CFLAGS_JDK and WARNING_CFLAGS_JVM, but not defining WARNINGS_ENABLE_ALL, WARNINGS_ENABLE_ADDITIONAL_JVM and DISABLED_WARNINGS.

The other more minor issues are the silent inclusion of -Wreorder to clang builds (should be a backport of JDK-8208672) and -xc99=%none (reverting JDK-8215296), because new lines were used as is without comparing differences in what was being replaced.

All three of these changes show up clearly when comparing the 11u & 12u changesets, and are corrected by this patch.

I can also confirm this has the desired effect with warnings as my local build on GCC 13 now fails again, whereas it was passing before (we need some backports there to make that work)

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
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Issue

• JDK-8335801: [11u] Backport of 8210988 to 11u removes gcc warnings (Bug - P4 - Requested)

Reviewers

• Paul Hohensee (@phohensee - Reviewer)

Reviewing

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[bridgekeeper]

👋 Welcome back andrew! 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]

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[mlbridge]

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[bridgekeeper]

@gnu-andrew This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply add a new comment to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

[gnu-andrew]

Keep this open. Still waiting on a review.

[openjdk]

⚠️ @gnu-andrew This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[gnu-andrew]

Thanks Paul!

/approval request Resolves a regression introduced in 11.0.24 by a bad backport of 8210988 which removed all gcc warning flags, along with a number of other minor issues. Patch has been reviewed by Paul Hohensee.

[openjdk]

@gnu-andrew
8335801: The approval request has been created successfully.