diff --git a/sys/powerpc/include/ifunc.h b/sys/powerpc/include/ifunc.h
new file mode 100644
index 00000000000..79d2763335a
--- /dev/null
+++ b/sys/powerpc/include/ifunc.h
@@ -0,0 +1,51 @@
+/*-
+ * Copyright (c) 2015-2018 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef __PPC64_IFUNC_H
+#define	__PPC64_IFUNC_H
+
+#define	DEFINE_IFUNC(qual, ret_type, name, args, resolver_qual)		\
+    resolver_qual ret_type (*name##_resolver(void))args __used;		\
+    qual ret_type name args __attribute__((ifunc(#name "_resolver")));	\
+    resolver_qual ret_type (*name##_resolver(void))args
+
+#define	DEFINE_UIFUNC(qual, ret_type, name, args, resolver_qual)	\
+    resolver_qual ret_type (*name##_resolver(uint64_t, uint64_t,	\
+	uint64_t, uint64_t, uint64_t, uint64_t, uint64_t,		\
+	uint64_t))args __used;						\
+    qual ret_type name args __attribute__((ifunc(#name "_resolver")));	\
+    resolver_qual ret_type (*name##_resolver(uint64_t _arg1 __unused,	\
+	uint64_t _arg2 __unused, uint64_t _arg3 __unused,		\
+	uint64_t _arg4 __unused, uint64_t _arg5 __unused,		\
+	uint64_t _arg6 __unused, uint64_t _arg7 __unused,		\
+	uint64_t _arg8 __unused))args
+
+#endif
diff --git a/sys/powerpc/powerpc/elf64_machdep.c b/sys/powerpc/powerpc/elf64_machdep.c
index 74a13064bd4..96377c79f2c 100644
--- a/sys/powerpc/powerpc/elf64_machdep.c
+++ b/sys/powerpc/powerpc/elf64_machdep.c
@@ -280,7 +280,7 @@ bool
 elf_is_ifunc_reloc(Elf_Size r_info __unused)
 {
 
-	return (false);
+	return (ELF_R_TYPE(r_info) == R_PPC64_IRELATIVE);
 }
 
 /* Process one elf relocation with addend. */
diff --git a/sys/sys/elf_common.h b/sys/sys/elf_common.h
index 8a83e8aab07..912272213ec 100644
--- a/sys/sys/elf_common.h
+++ b/sys/sys/elf_common.h
@@ -1142,6 +1142,7 @@ typedef struct {
 #define	R_PPC64_DTPMOD64	68
 #define	R_PPC64_TPREL64		73
 #define	R_PPC64_DTPREL64	78
+#define	R_PPC64_IRELATIVE	248
 
 /*
  * TLS relocations