[jdk26] RFR: 8373122: JFR build failure with CDS disabled due to -Werror=unused-function after JDK-8365400

[Francesco Andreuzzi]

On Wed, 24 Dec 2025 03:46:49 GMT, Hao Sun <haosun at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [e1d81c09](https://github.com/openjdk/jdk/commit/e1d81c0946364a266a006481a8fbbac24c7e6c6a) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Hao Sun on 23 Dec 2025 and was reviewed by Markus Grönlund, Jie Fu and Francesco Andreuzzi.
> 
> Thanks!

Marked as reviewed by fandreuzzi (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/28976#pullrequestreview-3622980963