实现unified-init库，支持收集初始化函数到一个数组，并统一初始化 (#474)

* 添加“统一初始化”的过程宏，并把SystemError独立成crate

* 使用unified-init来初始化fbmem

* 更新workflow，增加内核自动化静态测试

kernel/src/driver/video/fbdev/base/fbcon.rs

@@ -2,6 +2,7 @@ use alloc::{
     string::{String, ToString},
     sync::{Arc, Weak},
 };
+use system_error::SystemError;
 
 use crate::{
     driver::base::{
@@ -19,7 +20,6 @@ use crate::{
         rwlock::{RwLockReadGuard, RwLockWriteGuard},
         spinlock::SpinLock,
     },
-    syscall::SystemError,
 };
 
 use super::fbmem::sys_class_graphics_instance;

kernel/src/driver/video/fbdev/base/fbmem.rs

@@ -2,15 +2,15 @@ use alloc::{
     string::ToString,
     sync::{Arc, Weak},
 };
+use system_error::SystemError;
+use unified_init::macros::unified_init;
 
-use crate::{
-    driver::base::{
-        class::{class_manager, Class},
-        device::sys_dev_char_kset,
-        kobject::KObject,
-        subsys::SubSysPrivate,
-    },
-    syscall::SystemError,
+use crate::driver::base::{
+    class::{class_manager, Class},
+    device::sys_dev_char_kset,
+    init::SUBSYSTEM_INITIALIZER_SLICE,
+    kobject::KObject,
+    subsys::SubSysPrivate,
 };
 
 use super::fbcon::fb_console_init;
@@ -26,6 +26,7 @@ pub fn sys_class_graphics_instance() -> Option<&'static Arc<GraphicsClass>> {
 }
 
 /// 初始化帧缓冲区子系统
+#[unified_init(SUBSYSTEM_INITIALIZER_SLICE)]
 pub fn fbmem_init() -> Result<(), SystemError> {
     let graphics_class = GraphicsClass::new();
     class_manager().class_register(&(graphics_class.clone() as Arc<dyn Class>))?;

kernel/src/driver/video/fbdev/base/mod.rs

@@ -1,9 +1,9 @@
 use alloc::{string::String, sync::Arc};
+use system_error::SystemError;
 
 use crate::{
     driver::base::device::Device,
     mm::{ucontext::LockedVMA, PhysAddr},
-    syscall::SystemError,
 };
 
 pub mod fbcon;

kernel/src/driver/video/mod.rs

@@ -4,8 +4,6 @@ use core::{
     sync::atomic::{AtomicBool, Ordering},
 };
 
-use alloc::{boxed::Box, sync::Arc};
-
 use crate::{
     arch::MMArch,
     driver::tty::serial::serial8250::send_to_default_serial8250_port,
@@ -24,9 +22,10 @@ use crate::{
         allocator::page_frame::PageFrameCount, kernel_mapper::KernelMapper,
         no_init::pseudo_map_phys, page::PageFlags, MemoryManagementArch, PhysAddr, VirtAddr,
     },
-    syscall::SystemError,
     time::timer::{Timer, TimerFunction},
 };
+use alloc::{boxed::Box, sync::Arc};
+use system_error::SystemError;
 
 pub mod fbdev;