CONFIG_GENERIC_GETTIMEOFDAY (not configurable)

configname: CONFIG_GENERIC_GETTIMEOFDAY

Linux Kernel Configuration
└─>Library routines
└─>GENERIC_GETTIMEOFDAY
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This is a generic implementation of gettimeofday vdso.
Each architecture that enables this feature has to
provide the fallback implementation.