CONFIG_ARC_METAWARE_HLINK is not available for thedefaultarchitecture x86.
Result is shown for architecture arc

Support for Metaware debugger assisted Host access

modulename: arc_hostlink.ko

configname: CONFIG_ARC_METAWARE_HLINK

Linux Kernel Configuration
└─>ARC Architecture Configuration
└─>Support for Metaware debugger assisted Host access
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This options allows a Linux userland apps to directly access
host file system (open/creat/read/write etc) with help from
Metaware Debugger. This can come in handy for Linux-host communication
when there is no real usable peripheral such as EMAC.

source code: