Author: kib
Date: Mon Jan 30 20:00:29 2012
New Revision: 230785
URL: http://svn.freebsd.org/changeset/base/230785
Log:
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.
Reported by: Dmitry Mikulin <dmitrym juniper net>
MFC after: 1 week
Modified:
head/sys/kern/subr_syscall.c
Modified: head/sys/kern/subr_syscall.c
==============================================================================
--- head/sys/kern/subr_syscall.c Mon Jan 30 19:52:17 2012
(r230784)
+++ head/sys/kern/subr_syscall.c Mon Jan 30 20:00:29 2012
(r230785)
@@ -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);
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