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authordavidxu <davidxu@FreeBSD.org>2010-09-01 01:26:07 +0000
committerdavidxu <davidxu@FreeBSD.org>2010-09-01 01:26:07 +0000
commitbe8bfd2384601163d68720d6e4a562afc9e7303d (patch)
tree7d83057712f350abe684ccacedf25e303d519d07 /sys/kern/kern_sig.c
parent758b5f48ff31dc0cc917dcec5bf9051267a4254c (diff)
downloadFreeBSD-src-be8bfd2384601163d68720d6e4a562afc9e7303d.zip
FreeBSD-src-be8bfd2384601163d68720d6e4a562afc9e7303d.tar.gz
rescure comments from RELENG_4.
Diffstat (limited to 'sys/kern/kern_sig.c')
-rw-r--r--sys/kern/kern_sig.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index 9cbbe8d..f54d59e 100644
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -2140,6 +2140,10 @@ tdsendsignal(struct proc *p, struct thread *td, int sig, ksiginfo_t *ksi)
*/
if (P_SHOULDSTOP(p)) {
if (sig == SIGKILL) {
+ /*
+ * If traced process is already stopped,
+ * then no further action is necessary.
+ */
if (p->p_flag & P_TRACED)
goto out;
/*
@@ -2152,6 +2156,10 @@ tdsendsignal(struct proc *p, struct thread *td, int sig, ksiginfo_t *ksi)
}
if (prop & SA_CONT) {
+ /*
+ * If traced process is already stopped,
+ * then no further action is necessary.
+ */
if (p->p_flag & P_TRACED)
goto out;
/*
@@ -2198,6 +2206,10 @@ tdsendsignal(struct proc *p, struct thread *td, int sig, ksiginfo_t *ksi)
}
if (prop & SA_STOP) {
+ /*
+ * If traced process is already stopped,
+ * then no further action is necessary.
+ */
if (p->p_flag & P_TRACED)
goto out;
/*
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