CONFIG_HAVE_NOP_MCOUNT (not configurable)
configname: CONFIG_HAVE_NOP_MCOUNT
Linux Kernel Configuration
└─>Kernel hacking
└─>HAVE_NOP_MCOUNT
In linux kernel since version 4.2 (release Date: 2015-08-30)
Arch supports the gcc options -pg with -mrecord-mcount and -nop-mcount