ust: cleanups and functionality

[ust.git] / libtracectl / tracectl.c

diff --git a/libtracectl/tracectl.c b/libtracectl/tracectl.c
index 04de9f39be695194187f7c7b816091990aed67c1..874f4149e4419dcbad50cf4272ab7961cabe8bd0 100644 (file)
--- a/libtracectl/tracectl.c
+++ b/libtracectl/tracectl.c
@@ -255,6 +255,50 @@ static void __attribute__((constructor)) init()
 
        mypid = getpid();
 
+       if(getenv("UST_TRACE")) {
+               char trace_name[] = "auto";
+               char trace_type[] = "ustrelay";
+
+               DBG("starting early tracing");
+
+               /* Ensure marker control is initialized */
+               init_marker_control();
+
+               /* Ensure relay is initialized */
+               init_ustrelay_transport();
+
+               /* Ensure markers are initialized */
+               init_markers();
+
+               result = ltt_marker_connect("foo", "bar", "default");
+               if(result)
+                       ERR("ltt_marker_connect");
+
+               result = ltt_trace_setup(trace_name);
+               if(result < 0) {
+                       ERR("ltt_trace_setup failed");
+                       return;
+               }
+
+               result = ltt_trace_set_type(trace_name, trace_type);
+               if(result < 0) {
+                       ERR("ltt_trace_set_type failed");
+                       return;
+               }
+
+               result = ltt_trace_alloc(trace_name);
+               if(result < 0) {
+                       ERR("ltt_trace_alloc failed");
+                       return;
+               }
+
+               result = ltt_trace_start(trace_name);
+               if(result < 0) {
+                       ERR("ltt_trace_start failed");
+                       return;
+               }
+       }
+
        /* Must create socket before signal handler to prevent races
          * on pfd variable.
          */