d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

- Fix from pr kern/115469; Don't redeliver a signal once it has been

Browse Source 
handled by the target process.

Contributed by:	Tijl Coosemans <tijl@ulyssis.org>
Approved by:	re
This commit is contained in:
Jeff Roberson 2007-10-09 00:03:39 +00:00
parent 88f530cc25
commit 8753688f03
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=172485
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
sys/kern/sys_process.c
View File

@ -779,14 +779,15 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
sx_xunlock(&proctree_lock);
proctree_locked = 0;
}
/* deliver or queue signal */
thread_lock(td2);
td2->td_flags &= ~TDF_XSIG;
thread_unlock(td2);
td2->td_xsig = data;
p->p_xstat = data;
p->p_xthread = NULL;
if ((p->p_flag & (P_STOPPED_SIG | P_STOPPED_TRACE)) != 0) {
/* deliver or queue signal */
thread_lock(td2);
td2->td_flags &= ~TDF_XSIG;
thread_unlock(td2);
td2->td_xsig = data;
PROC_SLOCK(p);
if (req == PT_DETACH) {
struct thread *td3;
@ -809,11 +810,10 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
p->p_flag &= ~(P_STOPPED_TRACE|P_STOPPED_SIG|P_WAITED);
thread_unsuspend(p);
PROC_SUNLOCK(p);
} else {
if (data)
psignal(p, data);
}
if (data)
psignal(p, data);
break;
case PT_WRITE_I: