| From: |
| Daniel Jacobowitz <dan@debian.org> |
| To: |
| linux-kernel@vger.kernel.org, torvalds@transmeta.com |
| Subject: |
| Ptrace updates: CLONE_PTRACE should use force_sig_specific [3/5] |
| Date: |
| Thu, 6 Feb 2003 17:42:19 -0500 |
Right now, CLONE_PTRACE uses send_sig(SIGSTOP, p, 1). If you use
CLONE_THREAD | CLONE_PTRACE, though, this SIGSTOP gets broadcast to the
entire thread group. That's not what was intended; we only want the one
new thread to stop. Fixed like so.
# --------------------------------------------
# 03/02/04 drow@nevyn.them.org 1.959
# Use force_sig_specific to send SIGSTOP to newly-created CLONE_PTRACE processes.
# --------------------------------------------
diff -Nru a/kernel/fork.c b/kernel/fork.c
--- a/kernel/fork.c Thu Feb 6 16:57:32 2003
+++ b/kernel/fork.c Thu Feb 6 16:57:32 2003
@@ -1036,7 +1036,7 @@
}
if (p->ptrace & PT_PTRACED)
- send_sig(SIGSTOP, p, 1);
+ force_sig_specific(SIGSTOP, p);
wake_up_forked_process(p); /* do this last */
++total_forks;
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
