part of the syscall
Created by: LEOibyug
Description
完善了系统调用ref:posix_api
Related Issues(If necessary)
Implementation Details
How to Test
Tips: Please provide the test results of running testcases for starry-next on the commit corresponding to your PR. You can paste it here in the form of a screenshot, or provide a CI link to a branch or fork of starry-next for us to review.