So, do you in fact need to distinguish exec stops from syscall exit
against exec stops from PT_FOLLOW_EXEC,
This is pretty much what I need. It's the same stop in syscall return right? I
don't want to change when the stop happens, I want to have an lwpinfo flag that
tells me when a stop occurred in a process under PT_FOLLOW_EXEC.
@@ -889,7 +890,9 @@ exec_fail_dealloc:
if (error == 0) {
PROC_LOCK(p);
- td->td_dbgflags |= TDB_EXEC;
+ if ((p->p_flag& P_TRACED) != 0&&
+ ((P_FOLLOWEXEC) != 0 || (p->p_stops& S_PT_SCX) != 0))
+ td->td_dbgflags |= TDB_EXEC;
PROC_UNLOCK(p);
There's a small bug in the patch that makes it not work. The check for
P_FOLLOWEXEC should be:
+ ((p->p_flag& P_FOLLOWEXEC) != 0 || (p->p_stops& S_PT_SCX) !=
0))
Looks like the patch should work for me but I need to verify.
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