diff options
Diffstat (limited to 'lib/libpthread/man/pthread_attr_setstack.3')
| -rw-r--r-- | lib/libpthread/man/pthread_attr_setstack.3 | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/lib/libpthread/man/pthread_attr_setstack.3 b/lib/libpthread/man/pthread_attr_setstack.3 index 306dbdae8fd..ea622633cfb 100644 --- a/lib/libpthread/man/pthread_attr_setstack.3 +++ b/lib/libpthread/man/pthread_attr_setstack.3 @@ -1,9 +1,9 @@ -.\" $OpenBSD: pthread_attr_setstack.3,v 1.4 2013/06/05 03:44:50 tedu Exp $ +.\" $OpenBSD: pthread_attr_setstack.3,v 1.5 2018/04/12 17:13:34 deraadt Exp $ .\" Manual page derived from TOG's UNIX98 documentation. .\" .\" David Leonard, 2000. Public Domain. .\" -.Dd $Mdocdate: June 5 2013 $ +.Dd $Mdocdate: April 12 2018 $ .Dt PTHREAD_ATTR_SETSTACK 3 .Os .Sh NAME @@ -39,6 +39,18 @@ and the size of the storage shall be bytes. The stacksize shall be at least .Dv PTHREAD_STACK_MIN . +.Pp +On +.Ox +the provided stack must be page-aligned. +It will be replaced (meaning zeroed) with a new +.Ar MAP_ANON | Ar MAP_STACK +mapping. +It is recommended that the initial mapping be allocated using +an allocator which has a matching deallocator that discards whole +pages, to clear the +.Ar MAP_STACK +attribute afterwards. .Sh RETURN VALUES Upon successful completion, .Fn pthread_attr_setstack |