From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Wed, 10 Jun 2015 06:54:37 +0000 (+0200)
Subject: tracelog: use same class for all loglevels
X-Git-Tag: v2.7.0-rc1~30
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=8a920d4d1601cd7b85d876d0f31381bf0961ae6f;p=lttng-ust.git

tracelog: use same class for all loglevels

Each loglevel can be serialized by the exact same serialization
function. Therefore, use a single tracepoint class for all those.

This diminishes the code size of the probe, and therefore its impact on
the instruction cache.

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

diff --git a/include/lttng/lttng-ust-tracelog.h b/include/lttng/lttng-ust-tracelog.h
index 50b8054b..5bd35158 100644
--- a/include/lttng/lttng-ust-tracelog.h
+++ b/include/lttng/lttng-ust-tracelog.h
@@ -23,16 +23,21 @@
 #include <lttng/tracepoint.h>
 #include <stdarg.h>
 
+TRACEPOINT_EVENT_CLASS(lttng_ust_tracelog, tlclass,
+	TP_ARGS(const char *, file, int, line, const char *, func,
+		const char *, msg, unsigned int, len, void *, ip),
+	TP_FIELDS(
+		ctf_integer(int, line, line)
+		ctf_string(file, file)
+		ctf_string(func, func)
+		ctf_sequence_text(char, msg, msg, unsigned int, len)
+	)
+)
+
 #define TP_TRACELOG_TEMPLATE(_level_enum) \
-	TRACEPOINT_EVENT(lttng_ust_tracelog, _level_enum, \
+	TRACEPOINT_EVENT_INSTANCE(lttng_ust_tracelog, tlclass, _level_enum, \
 		TP_ARGS(const char *, file, int, line, const char *, func, \
-			const char *, msg, unsigned int, len, void *, ip), \
-		TP_FIELDS( \
-			ctf_integer(int, line, line) \
-			ctf_string(file, file) \
-			ctf_string(func, func) \
-			ctf_sequence_text(char, msg, msg, unsigned int, len) \
-		) \
+			const char *, msg, unsigned int, len, void *, ip) \
 	) \
 	TRACEPOINT_LOGLEVEL(lttng_ust_tracelog, _level_enum, _level_enum)