void __lttng_sig_trace_handler(int signo);
+/* Call this at the beginning of a new thread, except for the main() */
+void lttng_thread_init(void);
+
static inline _syscall1(int, ltt_switch, unsigned long, addr)
static inline _syscall3(int, ltt_update, unsigned long, addr, int *, active, int *, filter)