Crate ax_alloc 

ArceOS global memory allocator.

It provides GlobalAllocator, which implements the trait core::alloc::GlobalAlloc. A static global variable of type GlobalAllocator is defined with the #[global_allocator] attribute, to be registered as the standard library’s default allocator.

Modules

tracking

Tracking of memory usage, enabled with the tracking feature.

Structs

GlobalAllocator

The global allocator used by ArceOS when buddy-slab is enabled.

GlobalPage

A RAII wrapper of contiguous 4K-sized pages.

Usages

Statistics of memory usages.

Enums

AllocError

The error type used for allocation operations in ax-alloc.

UsageKind

Kinds of memory usage for tracking.

Traits

AllocatorOps

Unified allocator operations provided by all ax-alloc backends.

Functions

global_add_memory

Add the given memory region to the global allocator.

global_allocator

Returns the reference to the global allocator.

global_init

Initializes the global allocator with the given memory region.

init_percpu_slab

Initializes the per-CPU slab for the current CPU.

Type Aliases

AllocResult

A Result alias with AllocError as the error type.

DefaultByteAllocator

The default byte allocator for buddy-slab mode.