Index: head/contrib/elftoolchain/readelf/readelf.c
===================================================================
--- head/contrib/elftoolchain/readelf/readelf.c
+++ head/contrib/elftoolchain/readelf/readelf.c
@@ -3671,6 +3671,7 @@
 	{ NT_FREEBSD_FCTL_ASLR_DISABLE,		"ASLR_DISABLE" },
 	{ NT_FREEBSD_FCTL_PROTMAX_DISABLE,	"PROTMAX_DISABLE" },
 	{ NT_FREEBSD_FCTL_STKGAP_DISABLE,	"STKGAP_DISABLE" },
+	{ NT_FREEBSD_FCTL_WXNEEDED,		"WXNEEDED" },
 	{ 0, NULL }
 };
 
Index: head/sys/sys/elf_common.h
===================================================================
--- head/sys/sys/elf_common.h
+++ head/sys/sys/elf_common.h
@@ -790,6 +790,7 @@
 #define	NT_FREEBSD_FCTL_ASLR_DISABLE	0x00000001
 #define	NT_FREEBSD_FCTL_PROTMAX_DISABLE	0x00000002
 #define	NT_FREEBSD_FCTL_STKGAP_DISABLE	0x00000004
+#define	NT_FREEBSD_FCTL_WXNEEDED	0x00000008
 
 /* Values for n_type.  Used in core files. */
 #define	NT_PRSTATUS	1	/* Process status. */
Index: head/usr.bin/elfctl/elfctl.c
===================================================================
--- head/usr.bin/elfctl/elfctl.c
+++ head/usr.bin/elfctl/elfctl.c
@@ -66,6 +66,7 @@
 	{ "protmax",	NT_FREEBSD_FCTL_PROTMAX_DISABLE,
 	    "Disable implicit PROT_MAX" },
 	{ "stackgap",	NT_FREEBSD_FCTL_STKGAP_DISABLE, "Disable stack gap" },
+	{ "wxneeded",	NT_FREEBSD_FCTL_WXNEEDED, "Requires W+X mappings" },
 };
 
 static struct option long_opts[] = {