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-rw-r--r--lib/libc/sys/mmap.213
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/libc/sys/mmap.2 b/lib/libc/sys/mmap.2
index 1a2b0e511274..8a3c7c45f139 100644
--- a/lib/libc/sys/mmap.2
+++ b/lib/libc/sys/mmap.2
@@ -542,3 +542,16 @@ was specified and insufficient memory was available.
.Xr munmap 2 ,
.Xr getpagesize 3 ,
.Xr getpagesizes 3
+.Sh HISTORY
+The
+.Nm
+system call was first documented in
+.Bx 4.2
+and implemented in
+.Bx 4.4 .
+.\" XXX: lots of missing history of FreeBSD additions.
+.Pp
+The
+.Dv PROT_MAX
+functionality was introduced in
+.Fx 13 .