CONFIG_ARCH_SUPPORTS_CFI_CLANG (not configurable)

configname: CONFIG_ARCH_SUPPORTS_CFI_CLANG

Linux Kernel Configuration
└─>General architecture-dependent options
└─>ARCH_SUPPORTS_CFI_CLANG
In linux kernel since version 5.2 (release Date: 2019-07-07)  
An architecture should select this option if it can support Clang's
Control-Flow Integrity (CFI) checking.

is selected by
CONFIG_CFI_CLANG