From bfed67715df280c2f7575cd63aa65315860bb32c Mon Sep 17 00:00:00 2001
From: zhangxinyu <840317537@qq.com>
Date: Wed, 24 May 2023 16:44:54 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E7=94=A8=E6=88=B7=E7=B3=BB?=
 =?UTF-8?q?=E7=BB=9F=E8=B0=83=E7=94=A8sys=20get=20time?=
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---
 ch3/user/src/syscall.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ch3/user/src/syscall.rs b/ch3/user/src/syscall.rs
index 0c9f3e1..831658e 100644
--- a/ch3/user/src/syscall.rs
+++ b/ch3/user/src/syscall.rs
@@ -3,6 +3,7 @@ use core::arch::asm;
 const SYSCALL_WRITE: usize = 64;
 const SYSCALL_EXIT: usize = 93;
 const SYSCALL_YIELD: usize = 124;
+const SYSCALL_GET_TIME: usize = 169;
 
 
 fn syscall(id: usize, args: [usize; 3]) -> isize {
@@ -33,3 +34,8 @@ pub fn sys_yield() {
     syscall(SYSCALL_YIELD, [0, 0, 0]);
 }
 
+pub fn sys_get_time() -> isize {
+    syscall(SYSCALL_GET_TIME, [0, 0, 0])
+}
+
+