snmalloc-rs

What's Changed

This release adds C23 API support, pointer-authentication protection for the free list, improved AArch64 platform support, and expanded memory usage statistics in Rust.

New Features

C23 API support

• Expose free_sized/free_aligned_sized by @SchrodingerZhu in #832

Security mitigations

• Adding Pointer-Authentication Protection for Free List Forward Edge by @Pengxiang-Huang in #840

Platform support

• Implement tick() for AArch64 on non-Apple platforms by @mjp41 in #854

Rust

• Hotfix for cargo publish by @SchrodingerZhu in #831
• Expose memory usage statistics to Rust via SnMalloc::memory_stats() by @jayakasadev in #851

Bug Fixes

• Fix MSVC C4864 warning and testlib message_impl link error by @matajoh in #858

Testing

• Add tests for src/snmalloc/override/new.cc by @paulhdk in #839
• Add corruption-detection test for probabilistic mitigations by @mjp41 in #848
• Move test_memory_stats to an integration test by @mjp41 in #856

Build

• Use rdynamic more by @mjp41 in #841
• Test build performance improvements by @mjp41 in #835

CI

• Add cross-platform Coverage CI by @mjp41 in #842
• Reduce ctest wall-time without losing coverage by @mjp41 in #844
• Fix shell quoting in coverage-comment workflow by @mjp41 in #845
• Resolve PR by head SHA in coverage-comment workflow by @mjp41 in #847
• Don't mis-route nightly coverage comment to last-merged PR by @mjp41 in #849

New Contributors

• @paulhdk made their first contribution in #839
• @Pengxiang-Huang made their first contribution in #840
• @jayakasadev made their first contribution in #851

Full Changelog: 0.7.4...0.7.5

• Tracking upstream to match version 0.7.5.

What's Changed

Optimisations

• Improve post-teardown performance by Matthew Parkinson (@mjp41) in #810
• Fix performance issue in Red Black Tree init by Matthew Parkinson (@mjp41) in #818

Bug Fixes

• Detect cyclic corruption in SeqSet::iterate by Matthew Parkinson (@mjp41) in #813

Platform support

Rust

• snmalloc-rs moved into snmalloc repo by Matthew Parkinson (@mjp41) in #801
• Rust: Update build features by Matthew Parkinson (@mjp41) in #804
• misc: prepare for future release and bump versions by Schrodinger ZHU Yifan (@SchrodingerZhu) in #807
• Remove unused submodule from snmalloc-rs by Matthew Parkinson (@mjp41) in #827
• Address Rust packaging issues by Matthew Parkinson (@mjp41) in #830

C++ support

• Add SNMALLOC_EXPORT annotation to c++ allocator functions. by akrieger in #822
• inline annotation in pal_windows. by Matthew Parkinson (@mjp41) in #829

Build

• Adding vcpkg integration by Matthew A Johnson (@matajoh) in #825
• Parameterise clangformat_targets for reuse by other projects by Matthew Parkinson (@mjp41) in #826
• Move time concept to Pal by Matthew Parkinson (@mjp41) in #802

CI

• CI Fixes by Matthew Parkinson (@mjp41) in #803
• Refactor CI by Matthew Parkinson (@mjp41) in #806
• Add experiment with Claude.md by Matthew Parkinson (@mjp41) in #819

New Contributors

• akrieger made their first contribution in #822

Full Changelog: 0.7.3...0.7.4

• Tracking upstream to match version 0.7.4.
• SnMalloc has been moved to upstream repository. Future releases will track upstream release directly.

• Tracking upstream to match version 0.7.1
• Recommended to upgrade from 0.3.7 to get an important bug fix.

• Tracking upstream to match version 0.7

• Tracking upstream to match version 0.6.2

• Tracking upstream to fix Linux PAL typo.

• Tracking upstream to enable old Linux variants.

• Fixes build_cc feature (broken in 0.3.0 release).
• Fixes native-cpu feature (broken in 0.3.0 release).

• Release to follow upstream 0.6.0
• upstream Major redesign of the code to improve performance and enable a mode that provides strong checks against corruption.

• Deprecation of cache-friendly
• Use exposed alloc_zeroed from snmalloc
• upstream changes of remote communication, corruption detection and compilation flag detection.

• Reduction of libc dependency
• upstream Windows 7 and windows 8 compatibility added
• upstream Option to use C++20 standards if available
• upstream Preparations of cherification (heavy refactors of the structure)
• upstream Cold routine annotations

• upstream Building adjustment
• option of cc crate as build feature, only c compiler needed, no cmake required
• Addition of dynamic local TLS option

• upstream Apple M1 support
• upstream Building adjust
• non-allocation tracking functions

• upstream update to use a more efficient power of 2 check
• fix msvc support w/ crt-static

• upstream fix external pagemap usage

• upstream avoid amplification when routing
• upstream remotely store sizeclass
• upstream limit flat pagemap size
• upstream limit medium slab header
• upstream solaris support fix

• upstream bug fix for using failing to initialise meta-data

• upstream pass through Haiku build fix.
• upstream fix typo in macro definition for 16MiB shared library shim.
• upstream DragonFly support (userland).
• upstream natural alignment for USE_MALLOC
• upstream fix bug in pagemap when index has many level
• upstream add constexpr annotation to align_up/down.

• upstream stats
• upstream PAL updates and concepts
• upstream ddd constexpr annotation to align_up/down
• change macOS CI to follow xcode 12

• add msvc flag /EHsc to fix warning C4530

• upstream add backoff for large reservation
• upstream default chunk configuration to 1mib
• add new feature flags

• upstream New implementation of address space reservation leading to
  • better integration with transparent huge pages; and
  • lower address space requirements and fragmentation.
• Notice MinGW broken state

• upstream fix VS2019 build
• upstream fix wrong realloc behavior and performance issue

• upstream refactor ptr representation.
• upstream improve for more targets and architectures.
• seperate native CPU feature

• upstream large realloc fix and minor updates

• improve mingw support

• add android support
• upstream support x86
• upstream support android
• upstream fix callback

• follow upstream 0.4.0
• upstream defense TLS teardown
• upstream adjust GCC warning
• upstream other release optimizations

• upstream fix OpenEnclave
• upstream adjust remote batch size (performance improved dramatically, see benchmark
• upstream improve slow path performance for allocation

• More CI (ARM64 on QEMU)
• upstream ARM(32/64) support
• upstream x86-SGX support

• partially fixed mingw
• upstream remote dealloc refactor (higher performance)
• upstream remove extra assertions

• fix macos/freebsd support
• add more ci tests
• mark the mingw problem