RFR: 8321509: False positive in get_trampoline fast path causes crash [v3]

[Vladimir Kozlov]

On Tue, 25 Jun 2024 23:49:27 GMT, Dean Long <dlong at openjdk.org> wrote:

>> 8321509: False positive in get_trampoline fast path causes crash
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   cleanup

We should be pessimistic in Leyden. When we load AOT code there is no guarantee that destination is reachable.
x86 uses flag `ForceUnreachable` which we set to `true` in Leyden. Aarch64 does not use this flag so we have to find all places where there are assumption about reachability.

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PR Comment: https://git.openjdk.org/jdk/pull/19796#issuecomment-2219095791