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| author |   guenther <guenther@openbsd.org> | 2015-09-01 05:40:06 +0000 |
|---|---|---|
| committer | guenther <guenther@openbsd.org> | 2015-09-01 05:40:06 +0000 |
| commit | 0a8a9c346022d9ea9d2d120f75edf8549c4915cf (patch) | |
| tree | e3c4076db1bbfd4052130f4025582261466c9f4c /lib/csu/sparc/md_init.h | |
| parent | initialise the width var in db_struct_offset_cmd() (diff) | |
| download | wireguard-openbsd-0a8a9c346022d9ea9d2d120f75edf8549c4915cf.tar.xz wireguard-openbsd-0a8a9c346022d9ea9d2d120f75edf8549c4915cf.zip | |
In static binaries, invoke kbind() once to disable it.
With much assistance from miod@
ok deraadt@@
Diffstat (limited to 'lib/csu/sparc/md_init.h')
| -rw-r--r-- | lib/csu/sparc/md_init.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/csu/sparc/md_init.h b/lib/csu/sparc/md_init.h index 4eda521741e..23fdfc7b0cc 100644 --- a/lib/csu/sparc/md_init.h +++ b/lib/csu/sparc/md_init.h @@ -1,4 +1,4 @@ -/* $OpenBSD: md_init.h,v 1.3 2015/07/03 11:17:25 miod Exp $ */ +/* $OpenBSD: md_init.h,v 1.4 2015/09/01 05:40:06 guenther Exp $ */ /*- * Copyright (c) 2001 Ross Harvey @@ -136,3 +136,12 @@ " neg %o0 \n" \ \ " .previous") + +#include <sys/syscall.h> +#define MD_DISABLE_KBIND \ + do { \ + register long syscall_num __asm("g1") = SYS_kbind; \ + register void *arg1 __asm("o0") = NULL; \ + __asm volatile("t 0" : "+r" (arg1) : "r" (syscall_num) \ + : "o1", "cc"); \ + } while (0) |