mirror of
https://github.com/hexagonal-sun/moss-kernel.git
synced 2026-04-18 06:08:09 -04:00
465fcb7acb
Move PtePermissions to paging module which is feature-gated behind `paging`. Also move all AddressSpace related functionality behind the `proc_vm` feature gate.
42 lines
1.8 KiB
Markdown
42 lines
1.8 KiB
Markdown
# libkernel
|
|
|
|
Architecture-independent kernel building blocks for operating systems.
|
|
|
|
`libkernel` provides the core abstractions that a kernel needs to manage memory,
|
|
processes, filesystems, and synchronisation, agnostic of the an underlying CPU
|
|
architecture. It is designed to run in a `no_std` environment and uses feature
|
|
gates to keep the dependency footprint minimal.
|
|
|
|
## Feature gates
|
|
|
|
| Feature | Enables | Implies |
|
|
|-----------|-------------------------------------------------------|------------------|
|
|
| `sync` | Synchronisation primitives (spinlock, mutex, rwlock…) | — |
|
|
| `alloc` | Memory allocators (buddy, slab) and collection types | `sync` |
|
|
| `paging` | Page tables, PTE helpers | `alloc` |
|
|
| `proc` | Process identity types (UID/GID, capabilities) | — |
|
|
| `fs` | VFS traits, path manipulation, block I/O | `proc`, `sync` |
|
|
| `proc_vm` | Process virtual-memory management (mmap, brk, CoW) | `paging`, `fs` |
|
|
| `kbuf` | Async-aware circular kernel buffers | `sync` |
|
|
| `all` | Everything above | all of the above |
|
|
|
|
## Quick start
|
|
|
|
Add `libkernel` to your `Cargo.toml` with only the features you need:
|
|
|
|
```toml
|
|
[dependencies]
|
|
libkernel = { version = "0.1", features = ["sync", "proc"] }
|
|
```
|
|
|
|
## The `CpuOps` trait
|
|
|
|
Most synchronisation and memory primitives are generic over a
|
|
[`CpuOps`](https://docs.rs/libkernel/latest/libkernel/trait.CpuOps.html)
|
|
implementation. This trait abstracts the handful of arch-specific operations
|
|
(core ID, interrupt masking, halt) that the portable code depends on.
|
|
|
|
## License
|
|
|
|
Licensed under the MIT license. See [LICENSE](../LICENSE) for details.
|