diff --git a/share/mk/bsd.linker.mk b/share/mk/bsd.linker.mk
index d4ab69337f10..839479280ccc 100644
--- a/share/mk/bsd.linker.mk
+++ b/share/mk/bsd.linker.mk
@@ -71,6 +71,7 @@ ${X_}LINKER_VERSION!=	echo "${_v:M[1-9].[0-9]*}" | \
 ${X_}LINKER_FEATURES=
 .if ${${X_}LINKER_TYPE} != "bfd" || ${${X_}LINKER_VERSION} > 21750
 ${X_}LINKER_FEATURES+=	build-id
+${X_}LINKER_FEATURES+=	ifunc
 .endif
 .if ${${X_}LINKER_TYPE} != "lld" || ${${X_}LINKER_VERSION} >= 50000
 ${X_}LINKER_FEATURES+=	filter
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index 007a2355905b..a51378ef7695 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -121,6 +121,9 @@ LDFLAGS+=	-Wl,--build-id=sha1
 .endif
 
 .if ${MACHINE_CPUARCH} == "amd64"
+.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
+.error amd64 kernel requires linker ifunc support
+.endif
 LDFLAGS+=	-Wl,-z max-page-size=2097152 -Wl,-z common-page-size=4096
 .endif