RFR: 8350398: [s390x] Relativize initial_sp/monitors in interpreter frames

[Amit Kumar]

On Thu, 20 Feb 2025 06:40:20 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> s390x port for [JDK-8315966](https://bugs.openjdk.org/browse/JDK-8315966). 
> 
> This PR depends on https://github.com/openjdk/jdk/pull/23660 because index calculation macro will be added by that PR, which is being used by this one. 
> 
> 
> // Frame slot index relative to fp
> #define _z_ijava_idx(_component) \
>         (_z_ijava_state_neg(_component) >> LogBytesPerWord)

Thanks for the reviews, Lutz, Andrew.

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PR Comment: https://git.openjdk.org/jdk/pull/23708#issuecomment-2862621865