RFR: 8312132: Add tracking of multiple address spaces in NMT [v5]

[Johan Sjölen]

On Tue, 30 Apr 2024 08:01:55 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>If you want to keep the linked list - after all, this is just a performance- and memory-optimization - why not just return a const NativeCallStack* instead of an index?

Because it made refactoring into a 4-byte index trivial ;-)!

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PR Review Comment: https://git.openjdk.org/jdk/pull/18289#discussion_r1592350252