D30442.id90602.diff
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	Index: lib/libc/sys/mprotect.2
	===================================================================
	--- lib/libc/sys/mprotect.2
	+++ lib/libc/sys/mprotect.2
	@@ -28,7 +28,7 @@
	.\" @(#)mprotect.2 8.1 (Berkeley) 6/9/93
	.\" $FreeBSD$
	.\"
	-.Dd February 26, 2020
	+.Dd June 11, 2021
	.Dt MPROTECT 2
	.Os
	.Sh NAME
	@@ -46,14 +46,19 @@
	system call
	changes the specified pages to have protection
	.Fa prot .
	-Not all implementations will guarantee protection on a page basis;
	-the granularity of protection changes may be as large as an entire region.
	-A region is the virtual address space defined by the start
	-and end addresses of a
	-.Vt "struct vm_map_entry" .
	.Pp
	-Currently these protection bits are known,
	-which can be combined, OR'd together:
	+Some architectures support more than one page size.
	+For mapping with page sizes larger than the default
	+.Dv PAGE_SIZE ,
	+the
	+.Fa addr
	+and
	+.Fa len
	+arguments must cover then entire allocation.
	+.Pp
	+The
	+.Fa prot
	+argument shall be the bitwise OR of one or more of the following values:
	.Pp
	.Bl -tag -width ".Dv PROT_WRITE" -compact
	.It Dv PROT_NONE
	@@ -66,8 +71,11 @@
	The pages can be executed.
	.El
	.Pp
	-In addition to these protection flags,
	+In addition to these standard protection flags,
	+the
	.Fx
	+implementation of
	+.Fn mprotect
	provides the ability to set the maximum protection of a region
	(which prevents
	.Nm