CONFIG_MACH_ARMCORE is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
CompuLab CM-X270 modules
modulename: cm-x270.ko
and/orcm-x270-pci.ko
configname: CONFIG_MACH_ARMCORE
Linux Kernel Configuration
└─>Intel PXA2xx/PXA3xx Implementations
└─>CompuLab CM-X270 modules