diff options
| author | Stuart Henderson <sthen@cvs.openbsd.org> | 2014-04-30 23:28:06 +0000 |
|---|---|---|
| committer | Stuart Henderson <sthen@cvs.openbsd.org> | 2014-04-30 23:28:06 +0000 |
| commit | 7f93f8160b8a42e0898c894d74c867b3f7b5b70a (patch) | |
| tree | a89dc1f13bf5ebf07c2b007dbc41a4c047b42cbf /lib/libc | |
| parent | c7512519935972cbde7ecf0bbdac427f01179b12 (diff) | |
first cut at documenting the change to malloc doing a partial 'junk' by
default and the new 'j' option to disable this; ok jmc@
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/stdlib/malloc.3 | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/libc/stdlib/malloc.3 b/lib/libc/stdlib/malloc.3 index 854d698fcc2..5ac241c9929 100644 --- a/lib/libc/stdlib/malloc.3 +++ b/lib/libc/stdlib/malloc.3 @@ -30,9 +30,9 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $OpenBSD: malloc.3,v 1.76 2014/04/22 15:02:16 jmc Exp $ +.\" $OpenBSD: malloc.3,v 1.77 2014/04/30 23:28:05 sthen Exp $ .\" -.Dd $Mdocdate: April 22 2014 $ +.Dd $Mdocdate: April 30 2014 $ .Dt MALLOC 3 .Os .Sh NAME @@ -271,6 +271,11 @@ Currently junk is bytes of 0xd0 when allocating; this is pronounced .Dq Duh . \&:-) Freed chunks are filled with 0xdf. +.It Cm j +.Dq Don't Junk . +By default, small chunks are always junked, and the first part of pages +is junked after free. +This flag disables the default so that no junking is performed. .It Cm P .Dq Move allocations within a page. Allocations larger than half a page but smaller than a page |