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arceos-arch.md

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ArceOS Architecture

ArceOS Modules

  • axalloc: ArceOS global memory allocator.
  • axconfig: Platform-specific constants and parameters for ArceOS.
  • axdisplay: ArceOS graphics module.
  • axdriver: ArceOS device drivers.
  • axfs: ArceOS filesystem module.
  • axhal: ArceOS hardware abstraction layer, provides unified APIs for platform-specific operations.
  • axlog: Macros for multi-level formatted logging used by ArceOS.
  • axnet: ArceOS network module.
  • axruntime: Runtime library of ArceOS.
  • axsync: ArceOS synchronization primitives.
  • axtask: ArceOS task management module.

Crates

  • allocator: Various allocator algorithms in a unified interface.
  • arm_gic: ARM Generic Interrupt Controller (GIC) register definitions and basic operations.
  • axerrno: Error code definition used by ArceOS.
  • axfs_devfs: Device filesystem used by ArceOS.
  • axfs_vfs: Virtual filesystem interfaces used by ArceOS.
  • axio: std::io-like I/O traits for no_std environment.
  • capability: Provide basic capability-based security.
  • crate_interface: Provides a way to define an interface (trait) in a crate, but can implement or use it in any crate.
  • driver_block: Common traits and types for block storage drivers.
  • driver_common: Device driver interfaces used by ArceOS.
  • driver_display: Common traits and types for graphics device drivers.
  • driver_net: Common traits and types for network device (NIC) drivers.
  • driver_virtio: Wrappers of some devices in the virtio-drivers crate, that implement traits in the driver_common series crates.
  • handler_table: A lock-free table of event handlers.
  • kernel_guard: RAII wrappers to create a critical section with local IRQs or preemption disabled.
  • lazy_init: A wrapper for lazy initialized values without concurrency safety but more efficient.
  • linked_list: Linked lists that supports arbitrary removal in constant time.
  • memory_addr: Wrappers and helper functions for physical and virtual addresses.
  • page_table: Generic page table structures for various hardware architectures.
  • page_table_entry: Page table entry definition for various hardware architectures.
  • percpu: Define and access per-CPU data structures.
  • percpu_macros: Macros to define and access a per-CPU data structure.
  • ratio: The type of ratios and related operations.
  • scheduler: Various scheduler algorithms in a unified interface.
  • slab_allocator: Slab allocator for no_std systems. Uses multiple slabs with blocks of different sizes and a linked list for blocks larger than 4096 bytes.
  • spinlock: no_std spin lock implementation that can disable kernel local IRQs or preemption while locking.
  • timer_list: A list of timed events that will be triggered sequentially when the timer expires.
  • tuple_for_each: Provides macros and methods to iterate over the fields of a tuple struct.

Dependencies

graph TD;
subgraph "User Apps"
A["Rust App"]
C["C App"]
end
subgraph "ArceOS ulib"
B["rust_libax"]
D["c_libax"]
E("rust_std")
F("c_musl")
end
A --> B;
C --> D;
A --> E;
D --> B;
E --> B;
E --> F;
C --> F;
subgraph "System compatible layer"
G["aeceos"]
H("linux")
end
B --> G;
F --> H;
subgraph "ArceOS modules"
I[axruntime]
J[axlog]
K[axsync]
L[axhal]
M[axconfig]
N[axalloc]
O[axtask]
P[axdriver]
Q[axnet]
Q1[axdisplay]
M1[axfs]
end
G --> I;
H --> I;
I --> IN6;
I --> IN3;
I --> IN9;
I --> IN4;
I --> IN15;
I --> N;
I --> M;
I --> P;
I --> L;
I --> J;
I --> Q;
I --> Q1;
I --> O;
Q1 --> P;
Q1 --> IN4;
Q1 --> K;
Q1 --> T5;
P --> IN11;
P --> T0;
P --> T1;
P --> T2;
P --> T3;
P --> T5;
P --> N;
P --> L;
P --> M;
N --> IN9;
N --> IN5;
N --> R;
N --> IN13;
L --> M;
L --> N;
L --> IN3;
L --> IN9;
L --> IN8;
L --> IN4;
L --> P1;
L --> P11;
L --> IN6;
L --> IN5;
L --> IN2;
L --> IN15;
J --> IN9;
J --> IN15;
Q --> T0;
Q --> T2;
Q --> IN4;
Q --> IN13;
Q --> L;
Q --> K;
Q --> O;
Q --> P;
K --> IN9;
K --> O;
O --> L;
O --> M;
O --> IN6;
O --> IN9;
O --> IN4;
O --> IN5;
O --> S;
O --> IN10;
O --> IN3;
O --> IN15;
M1 --> IN4;
M1 --> F3;
M1 --> T0;
M1 --> T1;
M1 --> IN14;
M1 --> IN13;
M1 --> F1;
M1 --> F2;
M1 --> P;
M1 --> K;
subgraph "ArceOS crates"
R[allocator]
IN12[arm_gic]
IN13[axerrno]
F1[axfs_devfs]
F2[axfs_vfs]
IN14[axio]
F3[capability]
IN15[crate_interface]
T1[driver_blk]
T0[driver_common]
T5[driver_display]
T2[driver_net]
T3[driver_virtio]
IN2[handler_table]
IN3[kernel_guard]
IN4[lazy_init]
Z[linked_list]
IN5[memory_addr]
P1[page_table]
P11[page_table_entry]
IN6[percpu]
IN7[percpu_macros]
IN8[ratio]
S[scheduler-FIFO_RR]
IN1[slab_allocator]
IN9[spinlock]
IN10[timer_list]
IN11[tuple_for_each]
T4(e1000)
V(smoltcp)
W(lwip_rust)
OUT2(bitmap-allocator)
Y(slab_allocator)
S1(FIFO)
S2(RR)
OUT1(buddy_system_allocator)
OUT3(virtio-drivers)
end
R --> OUT1;
R --> OUT2;
R --> Y;
IN4 --> IN13;
S --> Z;
OUT1 --> Z;
OUT2 --> Z;
IN1 --> OUT1;
Y --> Z;
T3 --> T1;
T3 --> T2;
T3 --> T5;
T3 --> OUT3;
T3 --> T0;
T1 --> T0;
T2 --> T0;
T4 --> T0;
T5 --> T0;
IN3 --> IN15;
P1 --> IN5;
P1 --> P11;
P11 --> IN5;
IN6 --> IN3;
IN6 --> IN7;
IN9 --> IN3;
F3 --> IN13;
F2 --> IN13;
F1 --> F2;
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