From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Fri, 15 Jul 2011 18:44:09 +0000 (-0400)
Subject: Add backward compatibility for tracepoints (qemu-kvm is using them)
X-Git-Tag: v0.15~1
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=2874fee50444405591974a7166313063b315efe1;p=ust.git

Add backward compatibility for tracepoints (qemu-kvm is using them)

Don't break compatibility needlessly before UST 2.0.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/include/ust/marker.h b/include/ust/marker.h
index e8608a9..dbdbbe0 100644
--- a/include/ust/marker.h
+++ b/include/ust/marker.h
@@ -127,11 +127,6 @@ struct ust_marker {
 #define ust_marker(name, format, args...) \
 	__ust_marker(ust, name, NULL, format, ## args)
 
-static inline __attribute__((deprecated))
-void __trace_mark_is_deprecated()
-{
-}
-
 /**
  * UST_MARKER_NOARGS - Format string for a marker with no argument.
  */
@@ -196,7 +191,6 @@ int ust_marker_unregister_lib(struct ust_marker * const *ust_marker_start);
  * ust_marker().
  */
 #define trace_mark(channel, name, format, args...)	\
-	__trace_mark_is_deprecated();			\
 	ust_marker(name, format, ## args)
 
 static inline __attribute__((deprecated))
diff --git a/include/ust/tracepoint.h b/include/ust/tracepoint.h
index 3d61f72..9463e40 100644
--- a/include/ust/tracepoint.h
+++ b/include/ust/tracepoint.h
@@ -124,6 +124,29 @@ struct tracepoint {
 	{								\
 		return __tracepoint_probe_unregister(#name, (void *)probe, \
 						   data);		\
+	}								\
+	/*								\
+	 * Backward-compatibility API (will be deprecated):		\
+	 * trace_*							\
+	 * register_trace_*						\
+	 * unregister_trace_*						\
+	 */								\
+	static inline void trace_##name(proto)				\
+	{								\
+		__CHECK_TRACE(name, TP_PROTO(proto),			\
+			      TP_ARGS(args));				\
+	}								\
+	static inline int						\
+	register_trace_##name(void (*probe)(proto))			\
+	{								\
+		return __tracepoint_probe_register(#name, (void *)probe,\
+						   NULL);		\
+	}								\
+	static inline int						\
+	unregister_trace_##name(void (*probe)(proto))			\
+	{								\
+		return __tracepoint_probe_unregister(#name, (void *)probe, \
+						     NULL);		\
 	}
 
 /*
@@ -194,6 +217,16 @@ int tracepoint_register_lib(struct tracepoint * const *tracepoints_start,
 extern
 int tracepoint_unregister_lib(struct tracepoint * const *tracepoints_start);
 
+/*
+ * Backward-compatibility API (will be deprecated):
+ * DEFINE_TRACE
+ * DECLARE_TRACE
+ * register_tracepoint
+ * unregister_tracepoint
+ */
+#define DEFINE_TRACE	_DEFINE_TRACEPOINT
+#define DECLARE_TRACE(name, proto, args)	\
+		_DECLARE_TRACEPOINT(name, TP_PARAMS(proto), TP_PARAMS(args))
 
 #ifndef TRACEPOINT_EVENT
 /*