Replace `sys_gettimeofday` with archutecture related version

Author: 0xAXCreated Nov 8, 2018Updated Jun 10, 2026
Labelshelp wantedoutdatedarea:syscalls

It seems that sys_gettimeofday() was replaced with __x64_sys_gettimeofday(), it should be updated in the book too.

The content should be updated in SysCall/linux-syscall-3.md