Handle _LGPL_SOURCE config

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

diff --git a/include/lttng/tracepoint.h b/include/lttng/tracepoint.h
index 148590b8e9d5c76810cbb773907d112bf2317b08..a224caebcd8485cf731648a0b6ce0e718d8d0bae 100644 (file)
--- a/include/lttng/tracepoint.h
+++ b/include/lttng/tracepoint.h
@@ -113,13 +113,19 @@ extern "C" {
 #define _TP_ARGS_DATA_VAR(...)         _TP_DATA_VAR_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
 #define _TP_PARAMS(...)                        __VA_ARGS__
 
+#ifdef _LGPL_SOURCE
+#define _TP_RCU_LINK_TEST()    1
+#else
+#define _TP_RCU_LINK_TEST()    rcu_read_lock_bp
+#endif
+
 #define _DECLARE_TRACEPOINT(provider, name, ...)                                       \
 extern struct tracepoint __tracepoint_##provider##___##name;                           \
 static inline void __tracepoint_cb_##provider##___##name(_TP_ARGS_PROTO(__VA_ARGS__))  \
 {                                                                                      \
        struct tracepoint_probe *__tp_probe;                                            \
                                                                                        \
-       if (!rcu_read_lock_bp)                                                          \
+       if (!_TP_RCU_LINK_TEST())                                                       \
                return;                                                                 \
        rcu_read_lock_bp();                                                             \
        __tp_probe = rcu_dereference_bp(__tracepoint_##provider##___##name.probes);     \