feat(syscall): 添加syscall table的实现 (#1164)

* feat(syscall): 添加syscall table的实现

- 实现syscall table
- 为syscall table适配write/writev、read和readv系统调用

---------

Signed-off-by: longjin <longjin@DragonOS.org>

kernel/crates/syscall_table_macros/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "syscall_table_macros"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+

kernel/crates/syscall_table_macros/src/lib.rs

@@ -0,0 +1,19 @@
+#![no_std]
+#![deny(clippy::all)]
+
+#[macro_export]
+#[allow(clippy::crate_in_macro_def)]
+macro_rules! declare_syscall {
+    ($nr:ident, $inner_handle:ident) => {
+        paste::paste! {
+            #[allow(non_upper_case_globals)]
+            #[link_section = ".syscall_table"]
+            #[used]
+            pub static [<HANDLE_ $nr>]: crate::syscall::table::SyscallHandle = crate::syscall::table::SyscallHandle {
+                nr: $nr,
+                inner_handle: &$inner_handle,
+                name: stringify!($nr),
+            };
+        }
+    };
+}