Hey Eric,
There's not a great way to do it, but you can use a tool like mdb(1)
on Solaris, or a simple DTrace script:
---8<--- dtrace_probes.d ---8<---
#!/usr/sbin/dtrace -s
#pragma D option quiet
int i;
tick-100
/i >= `dtrace_nprobes/
{
exit(0);
}
tick-100
{ printf("%4d %10s %20s %20s %10s %s\n", i,
stringof(`dtrace_probes[i]->dtpr_provider->dtpv_name),
stringof(`dtrace_probes[i]->dtpr_mod),
stringof(`dtrace_probes[i]->dtpr_func),
stringof(`dtrace_probes[i]->dtpr_name),
`dtrace_probes[i]->dtpr_ecb != NULL ? "enabled" : "disabled");
i++
}
---8<--- dtrace_probes.d ---8<---
0 dtrace BEGIN disabled
1 dtrace END disabled
2 dtrace ERROR enabled
3 python589 libpython2.6.so.1.0 PyEval_EvalFrameEx
function-entry disabled
4 python589 libpython2.6.so.1.0 dtrace_entry
function-entry disabled
Unfortunately this doesn't work on Mac OS X:
# dtrace -n 'BEGIN{ trace(`dtrace_nprobes); }'
dtrace: invalid probe specifier BEGIN{ trace(`dtrace_nprobes); }: in
action list: failed to resolve `dtrace_nprobes: Unknown symbol name
Some kernel symbols seem to be available; perhaps someone more
familiar with Mac OS X can get this script running over there.
Adam
On Tue, Jun 21, 2011 at 5:01 AM, Eric Gorr <mail...@ericgorr.net> wrote:
> If it matters, I am using Mac OS X 10.6.x.
>
> Let's say that I open a terminal window, enabled a few probes, and start
> collecting data.
>
> From a different terminal window can I ask DTrace what probes have been
> enabled? If so, how?
>
> Thank you.
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss@opensolaris.org
>
--
Adam Leventhal, Delphix
http://dtrace.org/blogs/ahl
275 Middlefield Road, Suite 50
Menlo Park, CA 94025
http://www.delphix.com
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