On Jan 19 2022, xuyang2018.jy@xxxxxxxxxxx wrote: > I just tried, the errno is 1 before open syscall. Worksforme. -- Andreas Schwab, schwab@xxxxxxxxxxxxxx GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."