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Avoid panicking when inputting error app name; List all apps when initializing.

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This commit is contained in:
Yifan Wu 2020-12-10 14:51:50 +08:00
parent 8fbadfc951
commit d0af7d26be
4 changed files with 19 additions and 6 deletions
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11
os/src/syscall/process.rs
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@ -59,10 +59,13 @@ pub fn sys_fork() -> isize {
pub fn sys_exec(path: *const u8) -> isize {
let token = current_user_token();
let path = translated_str(token, path);
let data = get_app_data_by_name(path.as_str()).unwrap();
let task = current_task().unwrap();
task.exec(data);
0
if let Some(data) = get_app_data_by_name(path.as_str()) {
let task = current_task().unwrap();
task.exec(data);
0
} else {
-1
}
}
pub fn sys_waitpid(pid: isize, exit_code_ptr: *mut i32) -> isize {