markers/tracepoints: implement library unregistration

[ust.git] / include / ust / marker.h

diff --git a/include/ust/marker.h b/include/ust/marker.h
index d792b6580d9cf0fc842353b666148827bbec0304..bd1ef699ba5c650eab2e25bab03847d84e774231 100644 (file)
--- a/include/ust/marker.h
+++ b/include/ust/marker.h
@@ -347,6 +347,7 @@ struct lib {
 };
 
 extern int marker_register_lib(struct marker *markers_start, int markers_count);
+extern int marker_unregister_lib(struct marker *markers_start);
 
 #define MARKER_LIB                                                     \
        extern struct marker __start___markers[] __attribute__((weak, visibility("hidden"))); \
@@ -355,6 +356,11 @@ extern int marker_register_lib(struct marker *markers_start, int markers_count);
        static void __attribute__((constructor)) __markers__init(void)  \
        {                                                               \
                marker_register_lib(__start___markers, (((long)__stop___markers)-((long)__start___markers))/sizeof(struct marker)); \
+       } \
+       \
+       static void __attribute__((destructor)) __markers__destroy(void)        \
+       {                                                               \
+               marker_unregister_lib(__start___markers); \
        }
 
 extern void marker_set_new_marker_cb(void (*cb)(struct marker *));