[src/trunk]: src/sys/kern Ensure that the LWP private area has a consistent v...

[joerg <joerg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3156f38b1736
branches:  trunk
changeset: 762818:3156f38b1736
user:      joerg <joerg%NetBSD.org@localhost>
date:      Tue Mar 01 18:53:10 2011 +0000

description:
Ensure that the LWP private area has a consistent value after exec.

diffstat:

 sys/kern/kern_exec.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r d9821871a380 -r 3156f38b1736 sys/kern/kern_exec.c
--- a/sys/kern/kern_exec.c      Tue Mar 01 15:33:35 2011 +0000
+++ b/sys/kern/kern_exec.c      Tue Mar 01 18:53:10 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_exec.c,v 1.308 2011/02/21 20:23:29 pooka Exp $    */
+/*     $NetBSD: kern_exec.c,v 1.309 2011/03/01 18:53:10 joerg Exp $    */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -59,7 +59,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.308 2011/02/21 20:23:29 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.309 2011/03/01 18:53:10 joerg Exp $");
 
 #include "opt_ktrace.h"
 #include "opt_modular.h"
@@ -1075,6 +1075,9 @@
        if (pack.ep_esch->es_setregs)
                (*pack.ep_esch->es_setregs)(l, &pack, (vaddr_t)stack);
 
+       /* Provide a consistent LWP private setting */
+       (void)lwp_setprivate(l, NULL);
+
        /* map the process's signal trampoline code */
        if ((error = exec_sigcode_map(p, pack.ep_esch->es_emul)) != 0) {
                DPRINTF(("execve: map sigcode failed %d\n", error));