RFR: 8334618: ubsan: support setting additional ubsan check options [v3]

[Kim Barrett]

On Fri, 21 Jun 2024 08:29:37 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> Sometimes it would be helpful to have configure-support for adding additional ubsan check options.
>> E.g. support new configure option '--with-additional-ubsan-checks=<check-settings>' .
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   more lines

[Just a drive-by comment, not a review and not planning to review.]
As a user, syntactically I think I'd prefer something like the `with-ubsan[=parameters]` approach suggested in the
the probably duplicate issue https://bugs.openjdk.org/browse/JDK-8306710.  But that's not a strongly held opinion.
And I have no idea what would be better for the implementation.

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PR Comment: https://git.openjdk.org/jdk/pull/19802#issuecomment-2183566020