RFR: 8370578: SystemMapTest.java#normal fails intermittendly on macOS aarch64

[Thomas Stuefe]

On Tue, 28 Oct 2025 20:28:10 GMT, Simon Tooke <stooke at openjdk.org> wrote:

> This PR addresses [JDK-8370578](https://bugs.openjdk.org/browse/JDK-8370578)  
> 
> Under certain circumstances, OpenJDK on macOS maps the hsperf segment private instead of shared; one of those cases is hit during the tier1 tests, which test for that.  
> 
> This PR allows for shared or private mapping; the purpose of the intermittently failing test is to test System.map implementation, not JDK internals.

Looks good!

-------------

Marked as reviewed by stuefe (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/28025#pullrequestreview-3394570778