add cargo fmt in Makefile, and exec make fmt

Makefile

@@ -6,3 +6,5 @@ docker:
 
 build_docker: 
 	docker build -t ${DOCKER_NAME} .
+fmt:
+	cd easy-fs; cargo fmt; cd ../easy-fs-fuse cargo fmt; cd ../os ; cargo fmt; cd ../user; cargo fmt; cd ..

os/src/boards/qemu.rs

@@ -3,4 +3,3 @@ pub const CLOCK_FREQ: usize = 12500000;
 pub const MMIO: &[(usize, usize)] = &[(0x10001000, 0x1000)];
 
 pub type BlockDeviceImpl = crate::drivers::block::VirtIOBlock;
-

os/src/config.rs

@@ -12,4 +12,3 @@ pub const TRAMPOLINE: usize = usize::MAX - PAGE_SIZE + 1;
 pub const TRAP_CONTEXT: usize = TRAMPOLINE - PAGE_SIZE;
 
 pub use crate::board::{CLOCK_FREQ, MMIO};
-

os/src/drivers/block/mod.rs

@@ -1,13 +1,13 @@
 mod sdcard;
 mod virtio_blk;
 
-pub use virtio_blk::VirtIOBlock;
 pub use sdcard::SDCardWrapper;
+pub use virtio_blk::VirtIOBlock;
 
+use crate::board::BlockDeviceImpl;
 use alloc::sync::Arc;
 use easy_fs::BlockDevice;
 use lazy_static::*;
-use crate::board::BlockDeviceImpl;
 
 lazy_static! {
     pub static ref BLOCK_DEVICE: Arc<dyn BlockDevice> = Arc::new(BlockDeviceImpl::new());

os/src/fs/inode.rs

@@ -1,8 +1,8 @@
-//! `Arc<Inode>` -> `OSInodeInner`: In order to open files concurrently 
-//! we need to wrap `Inode` into `Arc`,but `Mutex` in `Inode` prevents 
-//! file systems from being accessed simultaneously 
-//! 
-//! `UPSafeCell<OSInodeInner>` -> `OSInode`: for static `ROOT_INODE`,we 
+//! `Arc<Inode>` -> `OSInodeInner`: In order to open files concurrently
+//! we need to wrap `Inode` into `Arc`,but `Mutex` in `Inode` prevents
+//! file systems from being accessed simultaneously
+//!
+//! `UPSafeCell<OSInodeInner>` -> `OSInode`: for static `ROOT_INODE`,we
 //! need to wrap `OSInodeInner` into `UPSafeCell`
 use super::File;
 use crate::drivers::BLOCK_DEVICE;
@@ -14,7 +14,7 @@ use bitflags::*;
 use easy_fs::{EasyFileSystem, Inode};
 use lazy_static::*;
 /// A wrapper around a filesystem inode
-/// to implement File trait atop 
+/// to implement File trait atop
 pub struct OSInode {
     readable: bool,
     writable: bool,
@@ -67,7 +67,7 @@ pub fn list_apps() {
     println!("**************/");
 }
 
-bitflags! {    
+bitflags! {
     ///Open file flags
     pub struct OpenFlags: u32 {
         ///Read only

os/src/fs/mod.rs

@@ -3,7 +3,7 @@ mod inode;
 mod stdio;
 
 use crate::mm::UserBuffer;
-/// File trait 
+/// File trait
 pub trait File: Send + Sync {
     /// If readable
     fn readable(&self) -> bool;

os/src/main.rs

@@ -9,7 +9,7 @@
 //! - [`mm`]: Address map using SV39
 //! - [`sync`]: Wrap a static data structure inside it so that we are able to access it without any `unsafe`.
 //! - [`fs`]: Separate user from file system with some structures
-//! 
+//!
 //! The operating system also starts in this module. Kernel code starts
 //! executing from `entry.asm`, after which [`rust_main()`] is called to
 //! initialize various pieces of functionality. (See its source code for

os/src/mm/address.rs

@@ -109,11 +109,11 @@ impl VirtAddr {
     pub fn ceil(&self) -> VirtPageNum {
         VirtPageNum((self.0 - 1 + PAGE_SIZE) / PAGE_SIZE)
     }
-    ///Get page offset 
+    ///Get page offset
     pub fn page_offset(&self) -> usize {
         self.0 & (PAGE_SIZE - 1)
     }
-    ///Check page aligned 
+    ///Check page aligned
     pub fn aligned(&self) -> bool {
         self.page_offset() == 0
     }
@@ -138,11 +138,11 @@ impl PhysAddr {
     pub fn ceil(&self) -> PhysPageNum {
         PhysPageNum((self.0 - 1 + PAGE_SIZE) / PAGE_SIZE)
     }
-    ///Get page offset 
+    ///Get page offset
     pub fn page_offset(&self) -> usize {
         self.0 & (PAGE_SIZE - 1)
     }
-    ///Check page aligned 
+    ///Check page aligned
     pub fn aligned(&self) -> bool {
         self.page_offset() == 0
     }
@@ -160,7 +160,7 @@ impl From<PhysPageNum> for PhysAddr {
 }
 
 impl VirtPageNum {
-    ///Return VPN 3 level index 
+    ///Return VPN 3 level index
     pub fn indexes(&self) -> [usize; 3] {
         let mut vpn = self.0;
         let mut idx = [0usize; 3];
@@ -173,11 +173,11 @@ impl VirtPageNum {
 }
 
 impl PhysAddr {
-    ///Get reference to `PhysAddr` value 
+    ///Get reference to `PhysAddr` value
     pub fn get_ref<T>(&self) -> &'static T {
         unsafe { (self.0 as *const T).as_ref().unwrap() }
     }
-    ///Get mutable reference to `PhysAddr` value 
+    ///Get mutable reference to `PhysAddr` value
     pub fn get_mut<T>(&self) -> &'static mut T {
         unsafe { (self.0 as *mut T).as_mut().unwrap() }
     }

os/src/mm/frame_allocator.rs

@@ -1,4 +1,4 @@
-//! Implementation of [`FrameAllocator`] which 
+//! Implementation of [`FrameAllocator`] which
 //! controls all the frames in the operating system.
 use super::{PhysAddr, PhysPageNum};
 use crate::config::MEMORY_END;

os/src/mm/memory_set.rs

@@ -389,26 +389,20 @@ pub fn remap_test() {
     let mid_text: VirtAddr = ((stext as usize + etext as usize) / 2).into();
     let mid_rodata: VirtAddr = ((srodata as usize + erodata as usize) / 2).into();
     let mid_data: VirtAddr = ((sdata as usize + edata as usize) / 2).into();
-    assert!(
-        !kernel_space
-            .page_table
-            .translate(mid_text.floor())
-            .unwrap()
-            .writable(),
-    );
-    assert!(
-        !kernel_space
-            .page_table
-            .translate(mid_rodata.floor())
-            .unwrap()
-            .writable(),
-    );
-    assert!(
-        !kernel_space
-            .page_table
-            .translate(mid_data.floor())
-            .unwrap()
-            .executable(),
-    );
+    assert!(!kernel_space
+        .page_table
+        .translate(mid_text.floor())
+        .unwrap()
+        .writable(),);
+    assert!(!kernel_space
+        .page_table
+        .translate(mid_rodata.floor())
+        .unwrap()
+        .writable(),);
+    assert!(!kernel_space
+        .page_table
+        .translate(mid_data.floor())
+        .unwrap()
+        .executable(),);
     println!("remap_test passed!");
 }

os/src/mm/mod.rs

@@ -1,9 +1,9 @@
 //! Memory management implementation
-//! 
+//!
 //! SV39 page-based virtual-memory architecture for RV64 systems, and
 //! everything about memory management, like frame allocator, page table,
 //! map area and memory set, is implemented here.
-//! 
+//!
 //! Every task or process has a memory_set to control its virtual memory.
 mod address;
 mod frame_allocator;

os/src/mm/page_table.rs

@@ -37,7 +37,7 @@ impl PageTableEntry {
     pub fn empty() -> Self {
         PageTableEntry { bits: 0 }
     }
-    ///Return 44bit ppn 
+    ///Return 44bit ppn
     pub fn ppn(&self) -> PhysPageNum {
         (self.bits >> 10 & ((1usize << 44) - 1)).into()
     }
@@ -150,13 +150,13 @@ impl PageTable {
             (aligned_pa_usize + offset).into()
         })
     }
-    /// Get root ppn 
+    /// Get root ppn
     pub fn token(&self) -> usize {
         8usize << 60 | self.root_ppn.0
     }
 }
-    /// Translate a pointer to a mutable u8 Vec through page table
-    pub fn translated_byte_buffer(token: usize, ptr: *const u8, len: usize) -> Vec<&'static mut [u8]> {
+/// Translate a pointer to a mutable u8 Vec through page table
+pub fn translated_byte_buffer(token: usize, ptr: *const u8, len: usize) -> Vec<&'static mut [u8]> {
     let page_table = PageTable::from_token(token);
     let mut start = ptr as usize;
     let end = start + len;

os/src/task/mod.rs

@@ -5,13 +5,13 @@
 //!
 //! A single global instance of [`TaskManager`] called `TASK_MANAGER` controls
 //! all the tasks in the whole operating system.
-//! 
-//! A single global instance of [`Processor`] called `PROCESSOR` monitors running 
-//! task(s) for each core. 
-//! 
-//! A single global instance of [`PidAllocator`] called `PID_ALLOCATOR` allocates 
+//!
+//! A single global instance of [`Processor`] called `PROCESSOR` monitors running
+//! task(s) for each core.
+//!
+//! A single global instance of [`PidAllocator`] called `PID_ALLOCATOR` allocates
 //! pid for user apps.
-//! 
+//!
 //! Be careful when you see `__switch` ASM function in `switch.S`. Control flow around this function
 //! might not be what you expect.
 mod context;
@@ -27,14 +27,15 @@ use crate::fs::{open_file, OpenFlags};
 use alloc::sync::Arc;
 pub use context::TaskContext;
 use lazy_static::*;
-pub use manager::{fetch_task,TaskManager};
+pub use manager::{fetch_task, TaskManager};
 use switch::__switch;
 use task::{TaskControlBlock, TaskStatus};
 
 pub use manager::add_task;
-pub use pid::{pid_alloc, KernelStack, PidHandle,PidAllocator};
+pub use pid::{pid_alloc, KernelStack, PidAllocator, PidHandle};
 pub use processor::{
-    current_task, current_trap_cx, current_user_token, run_tasks, schedule, take_current_task,Processor
+    current_task, current_trap_cx, current_user_token, run_tasks, schedule, take_current_task,
+    Processor,
 };
 /// Suspend the current 'Running' task and run the next task in task list.
 pub fn suspend_current_and_run_next() {
@@ -89,7 +90,7 @@ pub fn exit_current_and_run_next(exit_code: i32) {
 }
 
 lazy_static! {
-    ///Globle process that init user shell 
+    ///Globle process that init user shell
     pub static ref INITPROC: Arc<TaskControlBlock> = Arc::new({
         let inode = open_file("initproc", OpenFlags::RDONLY).unwrap();
         let v = inode.read_all();

os/src/task/pid.rs

@@ -63,7 +63,7 @@ pub fn kernel_stack_position(app_id: usize) -> (usize, usize) {
     let bottom = top - KERNEL_STACK_SIZE;
     (bottom, top)
 }
-///Kernelstack for app 
+///Kernelstack for app
 pub struct KernelStack {
     pid: usize,
 }

os/src/task/task.rs

@@ -1,4 +1,4 @@
-//!Implementation of [`TaskControlBlock`] 
+//!Implementation of [`TaskControlBlock`]
 use super::TaskContext;
 use super::{pid_alloc, KernelStack, PidHandle};
 use crate::config::TRAP_CONTEXT;

os/src/timer.rs

@@ -1,4 +1,3 @@
-
 //! RISC-V timer-related functionality
 
 use crate::config::CLOCK_FREQ;

os/src/trap/mod.rs

@@ -106,7 +106,7 @@ pub fn trap_handler() -> ! {
 #[no_mangle]
 /// set the new addr of __restore asm function in TRAMPOLINE page,
 /// set the reg a0 = trap_cx_ptr, reg a1 = phy addr of usr page table,
-/// finally, jump to new addr of __restore asm function 
+/// finally, jump to new addr of __restore asm function
 pub fn trap_return() -> ! {
     set_user_trap_entry();
     let trap_cx_ptr = TRAP_CONTEXT;
@@ -130,7 +130,7 @@ pub fn trap_return() -> ! {
 
 #[no_mangle]
 /// Unimplement: traps/interrupts/exceptions from kernel mode
-/// Todo: Chapter 9: I/O device 
+/// Todo: Chapter 9: I/O device
 pub fn trap_from_kernel() -> ! {
     use riscv::register::sepc;
     println!("stval = {:#x}, sepc = {:#x}", stval::read(), sepc::read());