Index: contrib/elftoolchain/readelf/readelf.c
===================================================================
--- contrib/elftoolchain/readelf/readelf.c
+++ contrib/elftoolchain/readelf/readelf.c
@@ -3490,6 +3490,8 @@
 
 static struct flag_desc note_feature_ctl_flags[] = {
 	{ NT_FREEBSD_FCTL_ASLR_DISABLE,		"ASLR_DISABLE" },
+	{ NT_FREEBSD_FCTL_WX_ENABLE		"WX_ENABLE" },
+	{ NT_FREEBSD_FCTL_IMPLIED_MAX_PROT_ENABLE, "IMPLIED_MAX_PROT_ENABLE" },
 	{ 0, NULL }
 };
 
Index: sys/sys/elf_common.h
===================================================================
--- sys/sys/elf_common.h
+++ sys/sys/elf_common.h
@@ -763,7 +763,9 @@
 #define	NT_FREEBSD_FEATURE_CTL	4
 
 /* NT_FREEBSD_FEATURE_CTL desc[0] bits */
-#define	NT_FREEBSD_FCTL_ASLR_DISABLE	0x00000001
+#define	NT_FREEBSD_FCTL_ASLR_DISABLE		0x00000001
+#define	NT_FREEBSD_FCTL_WX_ENABLE		0x00000002
+#define	NT_FREEBSD_FCTL_IMPLIED_MAX_PROT_ENABLE	0x00000004
 
 /* Values for n_type.  Used in core files. */
 #define	NT_PRSTATUS	1	/* Process status. */