diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/sys/minherit.2 | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/libc/sys/minherit.2 b/lib/libc/sys/minherit.2 index dc85d09..f2d437d 100644 --- a/lib/libc/sys/minherit.2 +++ b/lib/libc/sys/minherit.2 @@ -29,7 +29,7 @@ .\" .\" @(#)minherit.2 8.1 (Berkeley) 6/9/93 .\" -.Dd October 30, 2007 +.Dd March 15, 2017 .Dt MINHERIT 2 .Os .Sh NAME @@ -91,6 +91,11 @@ it will no longer be shared in the parent after the parent forks and there is no way to get the previous shared-backing-store mapping without unmapping and remapping the address space in the parent. +.It Dv INHERIT_ZERO +This option causes the address space in question to be mapped as new +anonymous pages, +which would be initialized to all zero bytes, +in the child process. .El .Sh RETURN VALUES .Rv -std minherit @@ -130,6 +135,13 @@ system call first appeared in .Ox and then in .Fx 2.2 . +.Pp +The +.Dv INHERIT_ZERO +support first appeared in +.Ox 5.6 +and then in +.Fx 12.0 . .Sh BUGS Once you set inheritance to .Dv MAP_PRIVATE |
