Re: [PATCH] tracing/markers: make markers select tracepoints

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On Mon, 2009-02-23 at 17:41 -0500, Theodore Tso wrote:
> On Mon, Feb 23, 2009 at 11:16:59PM +0100, Peter Zijlstra wrote:
> > 
> > We're working on adding arguments to the function/graph tracer, it would
> > fit all your above requirements and doesn't need any source modification
> > to boot.
> 
> *Excellent*.  I would love to have that funtionality.  How do you plan
> to make available complex data structures (i.e., suppose I want
> inode->i_ino printed out)?  I assume this will require writing some
> "easy to generate" glue code that would presumably be some kind of
> kernel module?  That doesn't bother me (after all that's what
> SystemTap does), as long as generation of the glue code can be largely
> automated ---- so that you can take something approximately like a
> DTrace or SystemTap script, and with some perl or python helper,
> translate it into glue code that gets compiled into a kernel module.
> Is something like that what you have in mind?

Yeah, we were also looking at using sparse and term rewrite systems on
top of the regular C parse tree to generate stuff.

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