feat: 批处理操作系统 (#1)

Reviewed-on: #1

user/src/bin/hello_world.rs

@@ -9,4 +9,4 @@ fn main() -> i32 {
     println!("Hello, world!");
 
     0
-}
+}

user/src/bin/illegal_instruction.rs

@@ -14,4 +14,4 @@ fn main() -> i32 {
         asm!("sret");
     }
     0
-}
+}

user/src/bin/power.rs

@@ -24,4 +24,4 @@ fn main() -> i32 {
     }
     println!("Test power OK!");
     0
-}
+}

user/src/bin/store_fault.rs

@@ -12,4 +12,4 @@ fn main() -> i32 {
         core::ptr::null_mut::<u8>().write_volatile(0);
     }
     0
-}
+}

user/src/console.rs

@@ -1,5 +1,5 @@
-use core::fmt::Write;
 use crate::syscall::sys_write;
+use core::fmt::Write;
 
 struct Stdout;
 
@@ -29,4 +29,4 @@ macro_rules! println {
     ($fmt: literal $(, $($arg: tt)+)?) => {
         $crate::console::print(format_args!(concat!($fmt, "\n") $(, $($arg)+)?));
     }
-}
+}

user/src/lib.rs

@@ -3,8 +3,8 @@
 
 use crate::syscall::{sys_exit, sys_write};
 
-mod utils;
 mod syscall;
+mod utils;
 #[macro_use]
 pub mod console;
 
@@ -28,4 +28,3 @@ pub fn write(fd: usize, buf: &[u8]) -> isize {
 pub fn exit(exit_code: i32) -> isize {
     sys_exit(exit_code)
 }
-

user/src/syscall.rs

@@ -4,7 +4,7 @@ const SYSCALL_WRITE: usize = 64;
 const SYSCALL_EXIT: usize = 93;
 
 fn syscall(id: usize, args: [usize; 3]) -> isize {
-    let mut result : isize;
+    let mut result: isize;
 
     unsafe {
         asm!(
@@ -25,4 +25,4 @@ pub fn sys_write(fd: usize, buffer: &[u8]) -> isize {
 
 pub fn sys_exit(exit_code: i32) -> isize {
     syscall(SYSCALL_EXIT, [exit_code as usize, 0, 0])
-}
+}

user/src/utils.rs

@@ -1,5 +1,5 @@
-use core::panic::PanicInfo;
 use crate::println;
+use core::panic::PanicInfo;
 
 pub fn clear_bss() {
     extern "C" {
@@ -9,9 +9,7 @@ pub fn clear_bss() {
     }
 
     for i in start_bss as usize..end_bss as usize {
-        unsafe {
-            (i as *mut u8).write_volatile(0)
-        }
+        unsafe { (i as *mut u8).write_volatile(0) }
     }
 }
 
@@ -20,10 +18,15 @@ fn panic_handler(info: &PanicInfo) -> ! {
     let message = info.message();
 
     if let Some(location) = info.location() {
-        println!("Panicked at {}:{} {}", location.file(), location.line(), message);
+        println!(
+            "Panicked at {}:{} {}",
+            location.file(),
+            location.line(),
+            message
+        );
     } else {
         println!("Panicked: {}", message);
     }
 
     unreachable!()
-}
+}