Messages in this thread Patch in this message | | | Date | Wed, 23 Sep 2009 10:32:44 +0200 | From | Arjan van de Ven <> | Subject | [patch] introduce TRACE_EVENT_ABI (was Re: TRACE_EVENT_ABI ?) |
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On Mon, 21 Sep 2009 17:20:31 -0400 Steven Rostedt <rostedt@goodmis.org> wrote:
> On Mon, 2009-09-21 at 20:00 +0200, Arjan van de Ven wrote: > > On Mon, 21 Sep 2009 12:46:07 -0400 > > Steven Rostedt <rostedt@goodmis.org> wrote: > > > > > On Mon, 2009-09-21 at 15:28 +0200, Arjan van de Ven wrote: > > > > This patch compiled for me; > > > > > > > your magic skills exceed mine ;-) > > > > mind sending me a signoff for this ? > > Sure, > > Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
From e2c647ae2d3ddc25b804f0419956caf40d89c606 Mon Sep 17 00:00:00 2001 From: Steven Rostedt <rostedt@goodmis.org> Date: Mon, 21 Sep 2009 20:14:53 +0200 Subject: [PATCH] trace: introduce TRACE_EVENT_ABI
Some trace events are suitable to form a stable userspace ABI; this patch introduces infrastructure to mark them as such, and marks the first few tracepoints this way
Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> --- include/linux/tracepoint.h | 4 ++++ include/trace/events/power.h | 6 +++--- include/trace/events/sched.h | 4 ++-- 3 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 63a3f7a..4cb454f 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -280,6 +280,10 @@ static inline void tracepoint_synchronize_unregister(void) * TRACE_EVENT_FN to perform any (un)registration work. */ +#define TRACE_EVENT_ABI(name, proto, args, tstruct, assign, print) \ + TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \ + PARAMS(tstruct), PARAMS(assign), PARAMS(print)) + #define TRACE_EVENT(name, proto, args, struct, assign, print) \ DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) #define TRACE_EVENT_FN(name, proto, args, struct, \ diff --git a/include/trace/events/power.h b/include/trace/events/power.h index ea6d579..7f0e86e 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -18,7 +18,7 @@ enum { -TRACE_EVENT(power_start, +TRACE_EVENT_ABI(power_start, TP_PROTO(unsigned int type, unsigned int state), @@ -37,7 +37,7 @@ TRACE_EVENT(power_start, TP_printk("type=%lu state=%lu", (unsigned long)__entry->type, (unsigned long)__entry->state) ); -TRACE_EVENT(power_end, +TRACE_EVENT_ABI(power_end, TP_PROTO(int dummy), @@ -56,7 +56,7 @@ TRACE_EVENT(power_end, ); -TRACE_EVENT(power_frequency, +TRACE_EVENT_ABI(power_frequency, TP_PROTO(unsigned int type, unsigned int state), diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 4069c43..93a3e17 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -83,7 +83,7 @@ TRACE_EVENT(sched_wait_task, * (NOTE: the 'rq' argument is not used by generic trace events, * but used by the latency tracer plugin. ) */ -TRACE_EVENT(sched_wakeup, +TRACE_EVENT_ABI(sched_wakeup, TP_PROTO(struct rq *rq, struct task_struct *p, int success), @@ -149,7 +149,7 @@ TRACE_EVENT(sched_wakeup_new, * (NOTE: the 'rq' argument is not used by generic trace events, * but used by the latency tracer plugin. ) */ -TRACE_EVENT(sched_switch, +TRACE_EVENT_ABI(sched_switch, TP_PROTO(struct rq *rq, struct task_struct *prev, struct task_struct *next), -- 1.6.0.6
-- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org
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