region

Breaking modernization: no_std, edition 2024, MSRV 1.85, provenance cleanup, unsafe unlock, and Error::SystemCall(i32) with richer std conversion.

Added

• Added an explicit MSRV of Rust 1.85.
• Added #![no_std] support with an optional std feature (enabled by default). The crate always uses core/alloc instead of assuming the standard library.
• Added GNU/Hurd support via the Linux /proc/self/maps query backend. CI compile-checks Hurd with nightly -Zbuild-std=core,alloc because prebuilt rust-std is unavailable via rustup.
• Added Redox OS support for allocation / protection / locking. Region querying is not available there yet and returns Error::UnmappedRegion.
• Added Region::max_protection().
• Added Allocation::is_empty().
• Under the std feature, Error::SystemCall displays via std::io::Error and converts with From<Error> for std::io::Error / Error::into_os_error().
• Added a Windows-only regression covering large Protection::NONE address-space reservations.

Changed

• OpenBSD now uses libc::kinfo_vmentry / KVE_* instead of a local copy (thanks @devnexen; closes #20).

• Bumped the crate edition from 2018 to 2024.

• Upgraded bitflags to 2.x.

• Widened the Windows dependency to windows-sys = ">=0.52, <=0.61".

• Updated libc and retained mach2.

• Adopted strict-provenance pointer helpers throughout the crate.

• Made unlock unsafe.

• Changed Error::SystemCall to carry a raw OS error code (i32) instead of std::io::Error, so system-call failures remain representable without std. With std enabled, display/conversion still go through io::Error.

• On Windows, alloc(..., Protection::NONE) now reserves address space without committing pages.

• Modernized GitHub Actions workflows:

  • bumped actions/checkout to v6 and migrated BSD jobs to CPA custom shell (cpa.sh)
  • added Hurd compile coverage via nightly -Zbuild-std=core,alloc
  • moved Android to compile-check coverage while cross linking is broken
  • replaced unmaintained actions-rs/* usage
  • updated checkout / toolchain / Pages deploy actions
  • added an explicit MSRV CI job
  • refreshed runner / BSD matrix versions

Removed

• Dropped the ancient MIPS CI target that required a pinned Rust 1.52 toolchain.

Fixed

• Fixed Clippy / documentation lint noise that blocked modern toolchains.
• Fixed Windows system-info caching to avoid static mut on recent Rust.

docs: update version to 3.0.2

Removed

• Removed explicit support for OpenBSD < 7.x (req libc locking)

Fixed

• Dropped explicit versioning of libc version.

docs: update version to 3.0.1

Added

• Added support for NetBSD.
• Added support for non-standard UNIX flags w/ Protection::from_bits_*.

Changed

• Replaced deprecated winapi with windows-sys.
• Replaced deprecated mach with mach2.

Fixed

• Fixed query to recursively query pages on macOS.
• Fixed MAP_JIT to be set when allocating (R)WX pages on macOS (aarch64).

docs: update version to 3.0.0

Added

• Added support for OpenBSD.
• Added support for Illumos.
• Added support for memory allocations (alloc & alloc_at).
• Added QueryIter for lazily iterating regions.
• Added inline annotation where applicable.

Changed

• Addresses are now defined as *const T (instead of *const u8).
• Region state has been internalized, now exposed via methods.
• Error enumerations have been altered.
• query_iter now returns an iterator.

Removed

• Removed page::size_from_range.
• Removed deprecated functionality.

(cargo-release) region version 2.2.0

(cargo-release) version 2.1.2

(cargo-release) version 2.1.1

(cargo-release) version 2.1.0

(cargo-release) version 2.0.0

(cargo-release) version 1.0.0