Re: [PATCH 0/4][RFC] event tracer

From: Steven Rostedt
Date: Tue Feb 24 2009 - 17:10:30 EST



On Tue, 24 Feb 2009, Peter Zijlstra wrote:

> On Tue, 2009-02-24 at 14:33 -0500, Steven Rostedt wrote:
>
> > DECLARE_TRACE_FMT(sched_kthread_stop,
> > TPPROTO(struct task_struct *t),
> > TPARGS(t),
> > "task %s:%d", TPARGS(t->comm, t->pid));
>
> Consistency would require something like:
>
> DECLARE_TRACE_FMT(sched_kthread_stop,
> TPPROTO(struct task_struct *t),
> TPARGS(t),
> TPFMT("task %s:%d", t->comm, t->pid));
>
> I seem to remember Jason proposing something like this in the past.

Hmm, I'll have to look at that. (althought I was going to use a different
TPARGS for the format args.)

I have, for now:

event_printk("(%s)" fmt "\n", #call, fmtargs);

I guess I can redefine the TPFMT too.

#undef TPFMT
#define TPFMT(fmt, args...) \
"(%s)" fmt "\n", #call, ##args

and then I could do

event_printk(fmt);

-- Steve

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