macos: update vm_statistics64 to latest sdk

[elihwyma]

Description

Updates vm_statistics64 to include the new values added in more recent MacOS SDK versions.

Sources

Relevant header snippet from MacOS27.sdk

struct vm_statistics64 {
	natural_t       free_count;             /* # of pages free */
	natural_t       active_count;           /* # of pages active */
	natural_t       inactive_count;         /* # of pages inactive */
	natural_t       wire_count;             /* # of pages wired down */
	uint64_t        zero_fill_count;        /* # of zero fill pages */
	uint64_t        reactivations;          /* # of pages reactivated */
	uint64_t        pageins;                /* # of pageins (lifetime) */
	uint64_t        pageouts;               /* # of pageouts */
	uint64_t        faults;                 /* # of faults */
	uint64_t        cow_faults;             /* # of copy-on-writes */
	uint64_t        lookups;                /* object cache lookups */
	uint64_t        hits;                   /* object cache hits */
	uint64_t        purges;                 /* # of pages purged */
	natural_t       purgeable_count;        /* # of pages purgeable */
	/*
	 * NB: speculative pages are already accounted for in "free_count",
	 * so "speculative_count" is the number of "free" pages that are
	 * used to hold data that was read speculatively from disk but
	 * haven't actually been used by anyone so far.
	 */
	natural_t       speculative_count;      /* # of pages speculative */

	/* added for rev1 */
	uint64_t        decompressions;         /* # of pages decompressed (lifetime) */
	uint64_t        compressions;           /* # of pages compressed (lifetime) */
	uint64_t        swapins;                /* # of pages swapped in via compressor segments (lifetime) */
	uint64_t        swapouts;               /* # of pages swapped out via compressor segments (lifetime) */
	natural_t       compressor_page_count;  /* # of pages used by the compressed pager to hold all the compressed data */
	natural_t       throttled_count;        /* # of pages throttled */
	natural_t       external_page_count;    /* # of pages that are file-backed (non-swap) */
	natural_t       internal_page_count;    /* # of pages that are anonymous */
	uint64_t        total_uncompressed_pages_in_compressor; /* # of pages (uncompressed) held within the compressor. */
	/* added for rev2 */
	uint64_t        swapped_count;          /* # of compressor-stored pages currently stored in swap */
	/* Added in rev3 */
	/* The total number of physical pages in the tag storage region */
	uint64_t total_tag_storage_pages;
	/*
	 * The number of tag storage pages which hold non-tag data and are pageable
	 */
	uint64_t nontag_pageable_tag_storage_pages;
	/* The number of tag storage pages which hold non-tag data and are wired */
	uint64_t nontag_wired_tag_storage_pages;
	/*
	 * The number of tag storage pages which are being used for neither tags nor
	 * regular memory
	 */
	uint64_t free_tag_storage_pages;
	/* The number of tag storage pages which currently hold tags */
	uint64_t tag_storing_tag_storage_pages;

	/* The total number of virtual pages which are tagged */
	uint64_t total_tagged_pages;
	/* The number of resident, physical pages which are tagged */
	uint64_t resident_tagged_pages;
	/*
	 * The outstanding number of virtual tagged pages whose contents reside in the
	 * compressor
	 */
	uint64_t compressed_tagged_pages;

	/* The number of tagged pages which have been compressed since boot */
	uint64_t tagged_compressions;
	/* The number of tagged pages which have been decompressed since boot */
	uint64_t tagged_decompressions;
	/* The current number of bytes consumed by compressed tag storage data */
	uint64_t compressed_tag_storage_bytes;
	/* added for rev4 */
	/* The number of pages created due to speculative prefetch since boot */
	uint64_t speculative_pages_created;
	/* The number speculative pages that have been activated since boot */
	uint64_t speculative_pages_activated;

	/* Added for rev4 */
	/* The number of pages currently populated in the swapfile */
	uint64_t swap_count;

	/* Added for rev5 */
	/*
	 * The number of tag storage pages which are reserved for storing tags but
	 * don't currently hold any
	 */
	uint64_t empty_tag_storing_tag_storage_pages;
	/*
	 * The number of resident, file-backed (i.e. excluding JIT) pages which are
	 * mapped as executable
	 */
	uint64_t executable_count;
	/* The number of resident pages which are part of a shared region */
	uint64_t shared_region_count;
	/* The number of pages stolen by the booter */
	uint64_t boot_stolen_count;
	/* The number of file-backed pages which are secluded */
	uint64_t secluded_count;
	/* The number of internal pageable pages which are active */
	uint64_t active_internal_count;
	/* The number of internal pageable pages which are inactive */
	uint64_t inactive_internal_count;
	/* The number of external pageable pages which are active */
	uint64_t active_external_count;
	/* The number of external pageable pages which are inactive */
	uint64_t inactive_external_count;
	/* The number of purgeable volatile pages which are pageable */
	uint64_t purgeable_pageable_count;
	/* The number of purgeable-volatile pages which are wired */
	uint64_t purgeable_wired_count;
	/* The number of anonymous pages which are backgrounded */
	uint64_t background_internal_count;
	/* The number of file-backed pages which are backgrounded */
	uint64_t background_external_count;
	/* The number of anonymous pages which are queued for self-donation (App Swap) */
	uint64_t donated_count;
	/* The number of anonymous pages which are marked as real-time */
	uint64_t realtime_count;
	/* The size of physical memory in pages */
	uint64_t max_mem_count;
	/* The number of phantom file-cache ghosts which were re-paged-in */
	uint64_t phantom_ghosts_found;
	/* The number of phantom file-cache ghosts created by pageout */
	uint64_t phantom_ghosts_added;
} __attribute__((aligned(8)));

Checklist

• Relevant tests in libc-test/semver have been updated
• No placeholder or unstable values like *LAST or *MAX are
  included (see #3131)
• Tested locally (cd libc-test && cargo test --target mytarget);
  especially relevant for platforms that may not be checked in CI

@rustbot label +stable-nominated

[rustbot]

⚠️ Warning ⚠️

• The following commits have merge commits (commits with multiple parents) in your changes. We have a no merge policy so these commits will need to be removed for this pull request to be merged.

  • b69bc85

  You can start a rebase with the following commands:

  $ # rebase
  $ git pull --rebase https://github.com/rust-lang/libc.git main
  $ git push --force-with-lease
  

[rustbot]

This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.