On May 7, 2010, at 6:10 PM, Eric Gorr wrote: > QUESTION #1: > > I have defined three custom probes in my application. When I create a custom > instrument in Instruments to record when those probes fire, I do see them ( > http://ericgorr.net/cocoadev/dtracetest_ins.trace.zip ). > > However, when I do the following: > > > > ~ $ps -ax | grep dtracetest > 31449 ?? 0:00.46 /Developer/usr/bin/ibtool --start-agent > /Users/egorr/Desktop/dtracetest/dtracetest.xcodeproj --agent-timeout > 1800.000000 > 33021 ?? 0:00.09 > /Users/egorr/Desktop/dtracetest/build/Release/dtracetest.app/Contents/MacOS/dtracetest > -psn_0_667811 > 33067 ttys000 0:00.00 grep dtracetest > > ~ $sudo dtrace -l -n 'pid33021:dtracetest::' > ID PROVIDER MODULE FUNCTION NAME > dtrace: failed to match pid33021:dtracetest::: No probe matches description > > ~ $cat dtracetest.d > pid$target:dtracetest:: > { > @probecount[ probefunc ] = count(); > } > > ~ $sudo dtrace -p 33021 -s dtracetest.d > dtrace: failed to compile script dtracetest.d: line 1: probe description > pid33021:dtracetest:: does not match any probes > > > > DTrace from the command line doesn't know about the probes. > > Why is that?
Well, the answer finally came to me... I needed to do: ~ $sudo dtrace -l -n 'DTraceTest*:::' Password: ID PROVIDER MODULE FUNCTION NAME 22415 DTraceTest45612 dtracetest -[dtracetestAppDelegate buttonPushed:] test_end 22416 DTraceTest45612 dtracetest -[dtracetestAppDelegate buttonPushed:] test_mine 22417 DTraceTest45612 dtracetest -[dtracetestAppDelegate buttonPushed:] test_start > --- > --- > --- > > QUESTION #2: > > Clearly, I can prevent DTrace from the command line from automatically > creating entry, etc. probes for my application. > > So, the question then becomes, how can I tell DTrace that I want it to > automatically create entry, etc. probes for a subset of my functions. > > For example, say I wanted the automatic creation of entry and exit probes for > just the myCFunc function in my sample application? > What if there were 100 or 1000 more functions that I wanted dtrace to > automatically create entry and exit probes for? > > Is it possible to be selective in terms of what dtrace with automatically > create entry and exit probes for? Or is it (more or less) an all or nothing > proposition? > > (Although, this question has probably entered the realm of being specific to > Xcode.) Still looking for the answer for this one, but believe one would be able to manage it with the Exported Symbols File. _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
