Update TEST_MAPPING am: fef8573c03 am: 7e32e2c39a am: 99c8563759 am: ae4c05b9df

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/buddy_system_allocator/+/2108464

Change-Id: Ie069cfd8e4710db0710ba6853300bebb5a1da380
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 993377eb73e915a097f91cd5f6fe3427319fbeef
  1. .github/
  2. patches/
  3. src/
  4. .cargo_vcs_info.json
  5. .gitignore
  6. Android.bp
  7. Cargo.toml
  8. Cargo.toml.orig
  9. cargo2android.json
  10. LICENSE
  11. METADATA
  12. MODULE_LICENSE_MIT
  13. OWNERS
  14. README.md
  15. TEST_MAPPING
README.md

buddy_system_allocator

Crates.io version docs.rs

An (almost) drop-in replacement for phil-opp/linked-list-allocator. But it uses buddy system instead.

Usage

To use buddy_system_allocator for global allocator:

use buddy_system_allocator::LockedHeap;

#[global_allocator]
static HEAP_ALLOCATOR: LockedHeap = LockedHeap::empty();

To init the allocator:

unsafe {
    HEAP_ALLOCATOR.lock().init(heap_start, heap_size);
    // or
    HEAP_ALLOCATOR.lock().add_to_heap(heap_start, heap_end);
}

You can also use FrameAllocator and LockedHeapWithRescue, see their documentation for usage.

Features

  • use_spin (default): Provide a LockedHeap type that implements the GlobalAlloc trait by using a spinlock.
  • const_fn (nightly only): Provide const fn version of LockedHeapWithRescue::new.

License

Some code comes from phil-opp's linked-list-allocator.

Licensed under MIT License. Thanks phill-opp's linked-list-allocator for inspirations and interface.