Expand description
§memory
This crate provides fundamental memory manipulation routines (memset, memcmp, memcpy, and memmove) for use in no_std Rust environments, such as kernels, bootloaders, or embedded systems.
§Why is this needed?
In no_std environments, the Rust standard library is unavailable, including its implementations of essential C library functions like memset, memcmp, memcpy, and memmove. However, the Rust compiler and core library expect these functions to exist, as they are often used for low-level memory operations, optimizations, and code generation. If these symbols are missing, linking will fail or runtime errors may occur.
By providing these functions with the correct signatures and #[no_mangle] attributes, this crate ensures that Rust code (and any C code linked in) can safely and efficiently perform basic memory operations, even in bare-metal or OS development contexts.
§Safety
All functions in this crate are unsafe and require the caller to uphold strict invariants regarding pointer validity, alignment, and region overlap. See each function’s documentation for details.
§Usage
Link this crate into your no_std project to satisfy the compiler’s requirements for these memory routines. You may also use these functions directly if needed.