fix: 修复 #1387 错误的把sys_exit进行更改的bug (#1388)

fslongjin · web-flow · commit 4b25dcded24a · 2025-11-20T00:29:23.000+08:00
Signed-off-by: longjin &lt;longjin@DragonOS.org&gt;
diff --git a/kernel/src/process/syscall/sys_exit.rs b/kernel/src/process/syscall/sys_exit.rs
@@ -20,7 +20,9 @@ impl Syscall for SysExit {
 
     fn handle(&self, args: &[usize], _frame: &mut TrapFrame) -> Result<usize, SystemError> {
         let exit_code = Self::exit_code(args);
-        ProcessManager::group_exit((exit_code & 0xff) << 8);
+        // 仿照 Linux sys_exit：只取低 8 位并左移 8 位，形成 wstatus 编码，
+        // 然后只退出当前线程（不退出整个线程组）。
+        ProcessManager::exit((exit_code & 0xff) << 8);
     }
 
     fn entry_format(&self, args: &[usize]) -> Vec<FormattedSyscallParam> {

Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,9 @@ impl Syscall for SysExit {`
`20`	`20`
`21`	`21`	`fn handle(&self, args: &[usize], _frame: &mut TrapFrame) -> Result<usize, SystemError> {`
`22`	`22`	`let exit_code = Self::exit_code(args);`
`23`		`- ProcessManager::group_exit((exit_code & 0xff) << 8);`
	`23`	`+ // 仿照 Linux sys_exit：只取低 8 位并左移 8 位，形成 wstatus 编码，`
	`24`	`+ // 然后只退出当前线程（不退出整个线程组）。`
	`25`	`+ ProcessManager::exit((exit_code & 0xff) << 8);`
`24`	`26`	`}`
`25`	`27`
`26`	`28`	`fn entry_format(&self, args: &[usize]) -> Vec<FormattedSyscallParam> {`