Add UST core probe (metadata description)

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

diff --git a/libust/Makefile.am b/libust/Makefile.am
index 0a6834ae245f784e78b46d8950c32bdc73245102..88777ef36a62d7ad7ad6457cd0d385e11993410e 100644 (file)
--- a/libust/Makefile.am
+++ b/libust/Makefile.am
@@ -17,7 +17,9 @@ libust_la_SOURCES = \
        ltt-probes.c \
        lttng-ust-abi.c \
        lttng-ust-comm.c \
-       ust-core.c
+       ust-core.c \
+       probes/lttng-probe-ust.c \
+       probes/lttng-probe-ust.h
 
 #removed: buffers.c buffers.h
 

diff --git a/libust/probes/lttng-probe-ust.c b/libust/probes/lttng-probe-ust.c
new file mode 100644 (file)
index 0000000..a5fba86
--- /dev/null
+++ b/libust/probes/lttng-probe-ust.c
@@ -0,0 +1,16 @@
+/*
+ * probes/lttng-probe-ust.c
+ *
+ * Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * LTTng UST core probes.
+ *
+ * Dual LGPL v2.1/GPL v2 license.
+ */
+
+/*
+ * Create LTTng tracepoint probes.
+ */
+#define TRACEPOINT_CREATE_PROBES
+
+#include "lttng-probe-ust.h"

diff --git a/libust/probes/lttng-probe-ust.h b/libust/probes/lttng-probe-ust.h
new file mode 100644 (file)
index 0000000..ba7ff3a
--- /dev/null
+++ b/libust/probes/lttng-probe-ust.h
@@ -0,0 +1,51 @@
+#undef TRACEPOINT_SYSTEM
+#define TRACEPOINT_SYSTEM lttng_ust
+
+#if !defined(_TRACEPOINT_LTTNG_UST_H) || defined(TRACEPOINT_HEADER_MULTI_READ)
+#define _TRACEPOINT_LTTNG_UST_H
+
+/*
+ * Copyright (C) 2011  Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; version 2.1 of
+ * the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <ust/tracepoint.h>
+
+TRACEPOINT_EVENT(lttng_metadata,
+
+       TP_PROTO(const char *str),
+
+       TP_ARGS(str),
+
+       /*
+        * Not exactly a string: more a sequence of bytes (dynamic
+        * array) without the length. This is a dummy anyway: we only
+        * use this declaration to generate an event metadata entry.
+        */
+       TP_FIELDS(
+               ctf_string(str, str)
+       )
+)
+
+#undef TRACEPOINT_INCLUDE_PATH
+#define TRACEPOINT_INCLUDE_PATH ./probes
+#undef TRACEPOINT_INCLUDE_FILE
+#define TRACEPOINT_INCLUDE_FILE lttng-probe-ust
+
+#endif /* _TRACEPOINT_LTTNG_UST_H */
+
+/* This part must be outside protection */
+#include <ust/tracepoint-event.h>