Suppose I have a USDT probe in Firefox and that I'm trying to catch
the startup with a probe like this:
proc:::exec-success
/execname == firefox-bin/
{
start = timestamp;
}
and stop tracing when Firefox hits this USDT probe:
mozilla:::main-entry
{
exit(0);
}
How do I put the
The system() action is printf()-like, so you could do something like this:
proc:::exec-success
/ execname == firefox-bin /
{
stop();
system(%s -p %d, $1, pid);
}
and pass in the name of the 2nd script as the first argument.
Chad
On Fri, Aug 28, 2009 at 3:54 PM, Joel
On Aug 28, 2009, at 8:52 PM, Chad Mynhier wrote:
proc:::exec-success
/ execname == firefox-bin /
{
stop();
system(/tmp/trace-firefox.d -p %d, pid);
}
All the examples I have seen hardcode /tmp/trace-firefox.d.
How do I make it dynamic, though? For example, in
dtrace -s 1.d -s
On Fri, Aug 28, 2009 at 4:44 PM, Nicolas
Williamsnicolas.willi...@sun.com wrote:
On Fri, Aug 28, 2009 at 03:52:01PM -0400, Chad Mynhier wrote:
You can do this with two separate DTrace invocations. The first
catches the exec of firefox-bin and fires off the second. Something
like this for the
On Fri, Aug 28, 2009 at 05:13:41PM -0400, Chad Mynhier wrote:
On Fri, Aug 28, 2009 at 4:44 PM, Nicolas
Williamsnicolas.willi...@sun.com wrote:
Don't forget to have a system(prun $pid); action in the BEGIN probe of
the second script...
Nope, DTrace will actually take care of that for you.
Don't forget to have a system(prun $pid); action in the BEGIN probe of
the second script...
Nope, DTrace will actually take care of that for you. Consider this
script, /tmp/foo.d:
Is this new? It's very nice... Thanks,
I believe it's an accidental feature that has been there
On Aug 28, 2009, at 11:36 PM, Adam Leventhal wrote:
I believe it's an accidental feature that has been there forever.
FYI, it doesn't work this way on the Mac. I have to 'kill -CONT
$target' from the 1st script in my pipeline, otherwise I have to 'fg'
in ther terminal window where I
I used to be able to stop tracing Safari once NSApplicationMain was
entered. This was with 'dtrace -c...'. I'm no longer able to do so
with exec-success, stop and attaching to the stopped process, e.g.
./d Safari startup.d stop-nsapp.d
where startup.d:
BEGIN
{
start = timestamp;
}
END
{
