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	Index: head/share/man/man5/elf.5
	===================================================================
	--- head/share/man/man5/elf.5
	+++ head/share/man/man5/elf.5
	@@ -1296,6 +1296,32 @@
	and
	.Va descsz
	specify the unpadded length.
	+.Pp
	+.Fx
	+defines the following ELF note types
	+.Po with corresponding interpretation of
	+.Va desc Pc :
	+.Bl -tag -width 4n
	+.It Dv NT_FREEBSD_ABI_TAG Pq Value: 1
	+Indicates the OS ABI version in a form of a 32-bit integer containing expected
	+ABI version
	+.Po i.e.,
	+.Dv __FreeBSD_version Pc .
	+.It Dv NT_FREEBSD_NOINIT_TAG Pq Value: 2
	+Indicates that crt does not call init.
	+.Va desc
	+is ignored.
	+.It Dv NT_FREEBSD_ARCH_TAG Pq Value: 3
	+.It Dv NT_FREEBSD_FEATURE_CTL Pq Value: 4
	+Contains a bitmask of mitigations and features to enable:
	+.Bl -column "NT_FREEBSD_FCTL_PROTMAX_DISABLE" "0x00" "Disable implicit PROT_MAX"
	+.Sy Name Ta Sy Value Ta Sy Description
	+.It NT_FREEBSD_FCTL_ASLR_DISABLE Ta 0x01 Ta Disable ASLR
	+.It NT_FREEBSD_FCTL_PROTMAX_DISABLE Ta 0x02 Ta Disable implicit PROT_MAX
	+.It NT_FREEBSD_FCTL_STKGAP_DISABLE Ta 0x04 Ta Disable stack gap
	+.It NT_FREEBSD_FCTL_WXNEEDED Ta 0x08 Ta Binary makes W+X mappings
	+.El
	+.El
	.Sh SEE ALSO
	.Xr as 1 ,
	.Xr gdb 1 ,