James,
On Aug 31, 2009, at 9:28 PM, James McIlree wrote:
This will not work correctly in Leopard (10.5), I made some changes
in SnowLeopard (10.6) so
that -x evaltime=exec does do the right thing (tm).
I switched to Snow Leopard to get it to work right. It seems to work.
We did a hideous hack workaround where we monitored exec-success to
see new processes launching,
and to decide if we wanted to stop() them.
So stop is not necessary then? This is how I do it at the moment...
proc:::exec-success
/execname == progname/
{
stop();
system("dtrace %s -p %d %s\n", opts, pid, scripts);
exit(0);
}
then, in another script
BEGIN
{
system("kill -CONT %d &\n", $target);
}
syscall::getpid:entry
/ should_make_process_wait[pid] == 1 /
{
should_make_process_wait[pid] = 0;
printf("Stopping %s (%d)\n", execname, pid);
stop();
}
Is this how you suggest I should be doing it?
The final evilness is that stop() is implemented via sending a
SIGSTOP, which is user visible.
I certainly do notice this.
Thanks, Joel
---
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