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Restore previous semantics of PT_LWPINFO and make sure to lwp_addref the 

LWP.

OK'ed by ad.
This commit is contained in:
skrll 2007-03-15 20:55:15 +00:00
parent 298d20388c
commit 335ac44f76
1 changed files with 4 additions and 2 deletions
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6
sys/kern/sys_process.c
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@ -1,4 +1,4 @@
/* $NetBSD: sys_process.c,v 1.123 2007/03/09 14:11:26 ad Exp $ */
/* $NetBSD: sys_process.c,v 1.124 2007/03/15 20:55:15 skrll Exp $ */
/*-
* Copyright (c) 1982, 1986, 1989, 1993
@ -93,7 +93,7 @@
#include "opt_ktrace.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sys_process.c,v 1.123 2007/03/09 14:11:26 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: sys_process.c,v 1.124 2007/03/15 20:55:15 skrll Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -630,10 +630,12 @@ sys_ptrace(struct lwp *l, void *v, register_t *retval)
error = ESRCH;
break;
}
lt = LIST_NEXT(lt, l_sibling);
}
pl.pl_lwpid = 0;
pl.pl_event = 0;
if (lt) {
lwp_addref(lt);
pl.pl_lwpid = lt->l_lid;
if (lt->l_lid == t->p_sigctx.ps_lwp)
pl.pl_event = PL_EVENT_SIGNAL;