Logging calls to cfcs

Howdy gang!
I have inherited an application with a fairly large number of cfcs. The codebase goes back quite a few years. Though the code is in mostly decent shape, as with most long lived apps, there are files no longer in use, etc.
I am hoping to figure out a way to monitor cfc usage. Ideally, I would be getting something like:
* cfc name
* method
* file called from
* maybe args passed
I would stuff this info in to a table, so I can basically select all cfcs that have not seen any use in a given time period.
Coming up completely blank on this one. Any ideas? Thanks!

/Web-inf/debug/ directory (classic.cfm is the classic debugging that is visible at the end of the page)
Indeed. The key code is
<cfobject action="CREATE" type="JAVA" class="coldfusion.server.ServiceFactory" name="factory">
<cfset cfdebugger = factory.getDebuggingService()>
<cfset qEvents = cfdebugger.getDebugger().getData()>
qEvents is a query. What you want to get your grimy mitts on is that query's template column.
However, I should be wary of tampering with any of the files in /WEB-INF/debug/, as they are system files. Another consideration is load. The files in WEB-INF bootstrap a web application, and are generally meant to run before every request. Therefore, you wouldn't want to add any heavy-duty code in there.
I can think of two ways around that. In either case you create a temporary debug file with the sole purpose of logging the templates that your applications open. You will delete the files when you've collected enough information.
The first possibility is to make a copy of classic.cfm, say, /WEB-INF/debug/myClassic.cfm. Then, in myClassic.cfm, you may add the following line immediately after <cfset qEvents = cfdebugger.getDebugger().getData()>:
<cflog file="templates" text="#qEvents.template#">
Alternatively, you can just create your own debug file, say, /WEB-INF/debug/templateLogger.cfm. The file templateLogger.cfm would contain the barest minimum code you need for the job, namely
<cfobject action="CREATE" type="JAVA" class="coldfusion.server.ServiceFactory" name="factory">
<cfset cfdebugger = factory.getDebuggingService()>
<cfset qEvents = cfdebugger.getDebugger().getData()>
<cflog file="templates" text="#qEvents.template#">
In fact, as you will see in a moment, you may choose to implement both myClassic.cfm and templateLogger.cfm. After all, you will only be able to apply one at a time! How then?
In the Coldfusion Administrator, of course. Go to the section on Debugging & Logging. You will find that all the files in /WEB-INF/debug/ appear as a drop-down list entitled, "Select Debugging Output Format". You can only choose one!
Tick the checkbox "Enable Request Debugging Output". Click the button to submit the changes, and you're in business.

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cfc1
cfc2
cfc55
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Thx for your response, passing an argument would idealy be
the simplest approach but in the context of the problem it would
not be posible. I am working with a VERY large application and to
do so would mean modifying hundreds of lines of code where the CFC
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I think I understood your questions. There were more than one, some implicit. Here are my answers:
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