[PATCH 09/10] tracing: create the C style tracing for the sched subsystem

[Steven Rostedt]

From: Steven Rostedt <srostedt@xxxxxxxxxx>

This patch utilizes the TRACE_EVENT_FORMAT macro to enable the C style
faster tracing for the sched subsystem trace points.

Signed-off-by: Steven Rostedt <srostedt@xxxxxxxxxx>
---
 include/linux/tracepoint.h        |    3 +
 include/trace/sched_event_types.h |  119 +++++++++++++++++++++++++++++--------
 2 files changed, 97 insertions(+), 25 deletions(-)

diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 62d1339..152b2f0 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -157,4 +157,7 @@ static inline void tracepoint_synchronize_unregister(void)
 #define TRACE_FORMAT(name, proto, args, fmt)		\
 	DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
 
+#define TRACE_EVENT_FORMAT(name, proto, args, fmt, struct, tpfmt)	\
+	TRACE_FORMAT(name, PARAMS(proto), PARAMS(args), PARAMS(fmt))
+
 #endif
diff --git a/include/trace/sched_event_types.h b/include/trace/sched_event_types.h
index 2ada206..ba059c1 100644
--- a/include/trace/sched_event_types.h
+++ b/include/trace/sched_event_types.h
@@ -1,6 +1,6 @@
 
 /* use <trace/sched.h> instead */
-#ifndef TRACE_FORMAT
+#ifndef TRACE_EVENT_FORMAT
 # error Do not include this file directly.
 # error Unless you know what you are doing.
 #endif
@@ -8,70 +8,139 @@
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sched
 
-TRACE_FORMAT(sched_kthread_stop,
+TRACE_EVENT_FORMAT(sched_kthread_stop,
 	TPPROTO(struct task_struct *t),
 	TPARGS(t),
-	TPFMT("task %s:%d", t->comm, t->pid));
+	TPFMT("task %s:%d", t->comm, t->pid),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, t->pid)
+	),
+	TPRAWFMT("task %d")
+	);
 
-TRACE_FORMAT(sched_kthread_stop_ret,
+TRACE_EVENT_FORMAT(sched_kthread_stop_ret,
 	TPPROTO(int ret),
 	TPARGS(ret),
-	TPFMT("ret=%d", ret));
+	TPFMT("ret=%d", ret),
+	TRACE_STRUCT(
+		TRACE_FIELD(int, ret, ret)
+	),
+	TPRAWFMT("ret=%d")
+	);
 
-TRACE_FORMAT(sched_wait_task,
+TRACE_EVENT_FORMAT(sched_wait_task,
 	TPPROTO(struct rq *rq, struct task_struct *p),
 	TPARGS(rq, p),
-	TPFMT("task %s:%d", p->comm, p->pid));
+	TPFMT("task %s:%d", p->comm, p->pid),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, p->pid)
+	),
+	TPRAWFMT("task %d")
+	);
 
-TRACE_FORMAT(sched_wakeup,
+TRACE_EVENT_FORMAT(sched_wakeup,
 	TPPROTO(struct rq *rq, struct task_struct *p, int success),
 	TPARGS(rq, p, success),
 	TPFMT("task %s:%d %s",
-	      p->comm, p->pid, success?"succeeded":"failed"));
+	      p->comm, p->pid, success ? "succeeded" : "failed"),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, p->pid)
+		TRACE_FIELD(int, success, success)
+	),
+	TPRAWFMT("task %d success=%d")
+	);
 
-TRACE_FORMAT(sched_wakeup_new,
+TRACE_EVENT_FORMAT(sched_wakeup_new,
 	TPPROTO(struct rq *rq, struct task_struct *p, int success),
 	TPARGS(rq, p, success),
 	TPFMT("task %s:%d",
-	      p->comm, p->pid, success?"succeeded":"failed"));
+	      p->comm, p->pid, success ? "succeeded" : "failed"),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, p->pid)
+		TRACE_FIELD(int, success, success)
+	),
+	TPRAWFMT("task %d success=%d")
+	);
 
-TRACE_FORMAT(sched_switch,
+TRACE_EVENT_FORMAT(sched_switch,
 	TPPROTO(struct rq *rq, struct task_struct *prev,
 		struct task_struct *next),
 	TPARGS(rq, prev, next),
 	TPFMT("task %s:%d ==> %s:%d",
-	      prev->comm, prev->pid, next->comm, next->pid));
+	      prev->comm, prev->pid, next->comm, next->pid),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, prev_pid, prev->pid)
+		TRACE_FIELD(int, prev_prio, prev->prio)
+		TRACE_FIELD(pid_t, next_pid, next->pid)
+		TRACE_FIELD(int, next_prio, next->prio)
+	),
+	TPRAWFMT("prev %d:%d ==> next %d:%d")
+	);
 
-TRACE_FORMAT(sched_migrate_task,
+TRACE_EVENT_FORMAT(sched_migrate_task,
 	TPPROTO(struct task_struct *p, int orig_cpu, int dest_cpu),
 	TPARGS(p, orig_cpu, dest_cpu),
 	TPFMT("task %s:%d from: %d  to: %d",
-	      p->comm, p->pid, orig_cpu, dest_cpu));
+	      p->comm, p->pid, orig_cpu, dest_cpu),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, p->pid)
+		TRACE_FIELD(int, orig_cpu, orig_cpu)
+		TRACE_FIELD(int, dest_cpu, dest_cpu)
+	),
+	TPRAWFMT("task %d  from: %d to: %d")
+	);
 
-TRACE_FORMAT(sched_process_free,
+TRACE_EVENT_FORMAT(sched_process_free,
 	TPPROTO(struct task_struct *p),
 	TPARGS(p),
-	TPFMT("task %s:%d", p->comm, p->pid));
+	TPFMT("task %s:%d", p->comm, p->pid),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, p->pid)
+	),
+	TPRAWFMT("task %d")
+	);
 
-TRACE_FORMAT(sched_process_exit,
+TRACE_EVENT_FORMAT(sched_process_exit,
 	TPPROTO(struct task_struct *p),
 	TPARGS(p),
-	TPFMT("task %s:%d", p->comm, p->pid));
+	TPFMT("task %s:%d", p->comm, p->pid),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, p->pid)
+	),
+	TPRAWFMT("task %d")
+	);
 
-TRACE_FORMAT(sched_process_wait,
+TRACE_EVENT_FORMAT(sched_process_wait,
 	TPPROTO(struct pid *pid),
 	TPARGS(pid),
-	TPFMT("pid %d", pid));
+	TPFMT("pid %d", pid_nr(pid)),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, pid, pid_nr(pid))
+	),
+	TPRAWFMT("task %d")
+	);
 
-TRACE_FORMAT(sched_process_fork,
+TRACE_EVENT_FORMAT(sched_process_fork,
 	TPPROTO(struct task_struct *parent, struct task_struct *child),
 	TPARGS(parent, child),
 	TPFMT("parent %s:%d  child %s:%d",
-	      parent->comm, parent->pid, child->comm, child->pid));
+	      parent->comm, parent->pid, child->comm, child->pid),
+	TRACE_STRUCT(
+		TRACE_FIELD(pid_t, parent, parent->pid)
+		TRACE_FIELD(pid_t, child, child->pid)
+	),
+	TPRAWFMT("parent %d  child %d")
+	);
 
-TRACE_FORMAT(sched_signal_send,
+TRACE_EVENT_FORMAT(sched_signal_send,
 	TPPROTO(int sig, struct task_struct *p),
 	TPARGS(sig, p),
-	TPFMT("sig: %d   task %s:%d", sig, p->comm, p->pid));
+	TPFMT("sig: %d   task %s:%d", sig, p->comm, p->pid),
+	TRACE_STRUCT(
+		TRACE_FIELD(int, sig, sig)
+		TRACE_FIELD(pid_t, pid, p->pid)
+	),
+	TPRAWFMT("sig: %d  task %d")
+	);
 
 #undef TRACE_SYSTEM
-- 
1.5.6.5

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