This is a port of #16301 to macOS. System.map and System.dump_map are implemented using the macOS API and provide roughly the same information in the same format. Most of the heavy lifting was implemented by @tstuefe in https://github.com/openjdk/jdk/pull/16301 - this PR adds the macOS implementation and enables the common code for macOS 64 bit.
[Sample output (with NMT enabled)](https://github.com/user-attachments/files/16968316/vm_memory_map_87218.txt) ------------- Commit messages: - fix whitepsace errors - initial release - fix whitespace - more test cleanup - refactor System.dump test for MacOS - Merge branch 'master' into pr_macos_system_dump - add macOS to liast of supposredt platforms - Merge branch 'openjdk:master' into pr_macos_system_dump - fix macOS System.map tests - fix merge error - ... and 8 more: https://git.openjdk.org/jdk/compare/363327e6...c6628d30 Changes: https://git.openjdk.org/jdk/pull/20953/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20953&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8319873 Stats: 577 lines in 9 files changed: 499 ins; 40 del; 38 mod Patch: https://git.openjdk.org/jdk/pull/20953.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20953/head:pull/20953 PR: https://git.openjdk.org/jdk/pull/20953
