/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/scripts
Edit: /usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/scripts/Makefile.kcov (319B)
ifdef CONFIG_KCOV
kcov-flags-$(CONFIG_CC_HAS_SANCOV_TRACE_PC) += -fsanitize-coverage=trace-pc
kcov-flags-$(CONFIG_KCOV_ENABLE_COMPARISONS) += -fsanitize-coverage=trace-cmp
kcov-flags-$(CONFIG_GCC_PLUGIN_SANCOV) += -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so
export CFLAGS_KCOV := $(kcov-flags-y)
endif