CONFIG_ARCH_SUPPORTS_SHADOW_CALL_STACK (not configurable)

configname: CONFIG_ARCH_SUPPORTS_SHADOW_CALL_STACK

Linux Kernel Configuration
└─>General architecture-dependent options
└─>ARCH_SUPPORTS_SHADOW_CALL_STACK
In linux kernel since version 5.1 (release Date: 2019-05-05)  
An architecture should select this if it supports the compiler's
Shadow Call Stack and implements runtime support for shadow stack
switching.