X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Fust%2Fmarker.h;h=bbd9187a66ce4c043b5ab7fe83a38e73d49a067c;hb=55994a672106ec794f292d747206542067a27584;hp=0c32586a58b6721708208fda7f4d469866168c5e;hpb=9727555f30daf958f4817b28069ad36e871d65e8;p=ust.git

diff --git a/include/ust/marker.h b/include/ust/marker.h
index 0c32586..bbd9187 100644
--- a/include/ust/marker.h
+++ b/include/ust/marker.h
@@ -309,18 +309,20 @@ struct lib {
 	struct list_head list;
 };
 
-extern int marker_register_lib(struct marker *markers_start, struct marker_addr *marker_addr_start, int markers_count);
-
-#define MARKER_LIB										\
-extern struct marker __start___markers[] __attribute__((visibility("hidden")));			\
-extern struct marker __stop___markers[] __attribute__((visibility("hidden")));			\
-extern struct marker_addr __start___marker_addr[] __attribute__((visibility("hidden")));	\
-extern struct marker_addr __stop___marker_addr[] __attribute__((visibility("hidden")));		\
-												\
-static void __attribute__((constructor)) __markers__init(void)					\
-{												\
-	marker_register_lib(__start___markers, __start___marker_addr, (((long)__stop___markers)-((long)__start___markers))/sizeof(struct marker)); \
-}
+extern int marker_register_lib(struct marker *markers_start,
+			       struct marker_addr *marker_addr_start,
+			       int markers_count);
+
+#define MARKER_LIB							\
+	extern struct marker __start___markers[] __attribute__((weak, visibility("hidden"))); \
+	extern struct marker __stop___markers[] __attribute__((weak, visibility("hidden"))); \
+	extern struct marker_addr __start___marker_addr[] __attribute__((weak, visibility("hidden"))); \
+	extern struct marker_addr __stop___marker_addr[] __attribute__((weak, visibility("hidden"))); \
+									\
+	static void __attribute__((constructor)) __markers__init(void)	\
+	{								\
+		marker_register_lib(__start___markers, __start___marker_addr, (((long)__stop___markers)-((long)__start___markers))/sizeof(struct marker)); \
+	}
 
 extern void marker_set_new_marker_cb(void (*cb)(struct marker *));
 extern void init_markers(void);