实现uname系统调用 (#614)

* 实现uname系统调用

Co-authored-by: longjin <longjin@DragonOS.org>

kernel/src/syscall/mod.rs

@@ -33,7 +33,7 @@ use crate::{
     libs::align::page_align_up,
     mm::{verify_area, MemoryManagementArch, VirtAddr},
     net::syscall::SockAddr,
-    process::{fork::CloneFlags, Pid},
+    process::{fork::CloneFlags, syscall::PosixOldUtsName, Pid},
     time::{
         syscall::{PosixTimeZone, PosixTimeval},
         TimeSpec,
@@ -949,7 +949,10 @@ impl Syscall {
             }
 
             SYS_SCHED_YIELD => Self::sched_yield(),
-
+            SYS_UNAME => {
+                let name = args[0] as *mut PosixOldUtsName;
+                Self::uname(name)
+            }
             _ => panic!("Unsupported syscall ID: {}", syscall_num),
         };
 

kernel/src/syscall/syscall_num.h

@@ -53,6 +53,7 @@
 #define SYS_EXIT 60
 #define SYS_WAIT4 61
 #define SYS_KILL 62
+#define SYS_UNAME 63
 
 #define SYS_FCNTL 72