Re: [tip:timers/tracing] hrtimer: Add tracepoint for hrtimers

From: Ingo Molnar
Date: Tue Oct 13 2009 - 09:28:56 EST



* Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> On Tue, 2009-10-13 at 09:08 +0200, Ingo Molnar wrote:
> > * Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> >
>
> > > (unsigned long long)(((ktime_t) { .tv64 = REC->expires }).tv64)
> > >
> > > Is not easy. It's basically implementing a C interpreter :-(
> >
> > Btw., what i suggested quite some time ago was that we should bind
> > tracepoints by emitting C source code stubs, which tools can then build
> > and link in, using gcc.
>
> Yeah, and I thought about that too. But that kills any chance of
> running the trace on one box (non x86) and reading it on another
> (x86). And that is one of my goals for this.

Why does it kill that chance?

Ingo
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