Patch feat robust futex (#682)

* feat: 实现robust lock机制

* 前面更改vscode,修改回来

* 修改dadk的路径

* 提交.gitnore和.cargo，删除LICENSE，修改README

* 修改一个warn

* 删除.rustc_info.json

* 删除target文件夹

* 恢复DragonOS的LICENSE，删除Cargo.lock

* 将校验用户空间地址的代码写入函数内；将部分match分支用ok_or代替

* 修改wakeup函数获取running queue时unwrap一个None值发生panic

* 测试程序使用syscalls库进行系统调用

kernel/src/syscall/mod.rs

@@ -690,9 +690,6 @@ impl Syscall {
                 let uaddr2 = VirtAddr::new(args[4]);
                 let val3 = args[5] as u32;
 
-                verify_area(uaddr, core::mem::size_of::<u32>())?;
-                verify_area(uaddr2, core::mem::size_of::<u32>())?;
-
                 let mut timespec = None;
                 if utime != 0 && operation.contains(FutexFlag::FLAGS_HAS_TIMEOUT) {
                     let reader = UserBufferReader::new(
@@ -707,6 +704,26 @@ impl Syscall {
                 Self::do_futex(uaddr, operation, val, timespec, uaddr2, utime as u32, val3)
             }
 
+            SYS_SET_ROBUST_LIST => {
+                let head = args[0];
+                let head_uaddr = VirtAddr::new(head);
+                let len = args[1];
+
+                let ret = Self::set_robust_list(head_uaddr, len);
+                return ret;
+            }
+
+            SYS_GET_ROBUST_LIST => {
+                let pid = args[0];
+                let head = args[1];
+                let head_uaddr = VirtAddr::new(head);
+                let len_ptr = args[2];
+                let len_ptr_uaddr = VirtAddr::new(len_ptr);
+
+                let ret = Self::get_robust_list(pid, head_uaddr, len_ptr_uaddr);
+                return ret;
+            }
+
             SYS_READV => Self::readv(args[0] as i32, args[1], args[2]),
             SYS_WRITEV => Self::writev(args[0] as i32, args[1], args[2]),
 
@@ -952,11 +969,6 @@ impl Syscall {
                 Ok(0)
             }
 
-            SYS_SET_ROBUST_LIST => {
-                kwarn!("SYS_SET_ROBUST_LIST has not yet been implemented");
-                Ok(0)
-            }
-
             SYS_RSEQ => {
                 kwarn!("SYS_RSEQ has not yet been implemented");
                 Ok(0)