Migrate 25 crates to monorepo am: fc60ad5bc7

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/buddy_system_allocator/+/3217133

Change-Id: I0c4ac6158048a79de595cc8aed7d81229a2f27c8
Signed-off-by: Automerger Merge Worker <[email protected]>
tree: b5694fe3c0b20b134ee46331ae354f521f38badf
  1. .github/
  2. benches/
  3. src/
  4. .cargo_vcs_info.json
  5. .gitignore
  6. Android.bp
  7. Cargo.toml
  8. Cargo.toml.orig
  9. LICENSE
  10. METADATA
  11. MODULE_LICENSE_MIT
  12. OWNERS
  13. README.md
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::<32>::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.