-char *progname = NULL;
-
-void usage(void)
-{
- fprintf(stderr, "usage: %s [OPTIONS] OPERATION PID...\n", progname);
- fprintf(stderr, "\nControl the tracing of a process that supports LTTng Userspace Tracing.\n\
-\n\
-Operations:\n\
-\t--start-trace\tStart tracing\n\
-\t--stop-trace\tStop tracing\n\
-\t--destroy-trace\tDestroy the trace\n\
-\t--enable-marker CHANNEL_NAME/MARKER_NAME\tEnable a marker\n\
-\t--disable-marker CHANNEL_NAME/MARKER_NAME\tDisable a marker\n\
-\t--list-markers\tList the markers of the process and their state\n\
-\n\
-");
-}
-