svn commit: r231068 - stable/9/sys/kern

[Konstantin Belousov]

Author: kib
Date: Mon Feb  6 10:14:07 2012
New Revision: 231068
URL: http://svn.freebsd.org/changeset/base/231068

Log:
  MFC r230785:
  A debugger which requested PT_FOLLOW_FORK should get the notification
  about new child not only when doing PT_TO_SCX, but also for PT_CONTINUE.
  If TDB_FORK flag is set, always issue a stop, the same as is done for
  TDB_EXEC.

Modified:
  stable/9/sys/kern/subr_syscall.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/kern/subr_syscall.c
==============================================================================
--- stable/9/sys/kern/subr_syscall.c	Mon Feb  6 09:05:12 2012	(r231067)
+++ stable/9/sys/kern/subr_syscall.c	Mon Feb  6 10:14:07 2012	(r231068)
@@ -212,7 +212,8 @@ syscallret(struct thread *td, int error,
 		 * executes.  If debugger requested tracing of syscall
 		 * returns, do it now too.
 		 */
-		if (traced && ((td->td_dbgflags & TDB_EXEC) != 0 ||
+		if (traced &&
+		    ((td->td_dbgflags & (TDB_FORK | TDB_EXEC)) != 0 ||
 		    (p->p_stops & S_PT_SCX) != 0))
 			ptracestop(td, SIGTRAP);
 		td->td_dbgflags &= ~(TDB_SCX | TDB_EXEC | TDB_FORK);