WIP

clock-res/src/tracer.c

@@ -93,47 +93,14 @@ static int settracer(char *tracer) {
   return -1;
 }
 
-static void debugfs_prepare(void) {
-  if (mount_debugfs(NULL)) printf("could not mount debugfs");
-
-  fileprefix = get_debugfileprefix();
-  if (!trace_file_exists("tracing_enabled") && !trace_file_exists("tracing_on"))
-    printf(
-        "tracing_enabled or tracing_on not found\n, debug fs not mounted, "
-        "TRACERs not configured?\n");
-}
-
 void setup_tracer(void) {
-  debugfs_prepare();
 
   int ret;
 
-  if (trace_file_exists("tracing_enabled") && !trace_file_exists("tracing_on"))
-    setkernvar("tracing_enabled", "1");
-
-  /* ftrace_enabled is a sysctl variable */
-  /* turn it on if you're doing anything but nop or event tracing */
-
-  fileprefix = procfileprefix;
-  setkernvar("ftrace_enabled", "0");
-  fileprefix = get_debugfileprefix();
-
   // Clear old traces by setting tracer to nop first
   ret = settracer("nop");
   ret = settracer("function");
 
-  if (ret) fprintf(stderr, "Requested tracer not available\n");
-
-  setkernvar(traceroptions, "print-parent");
-  setkernvar(traceroptions, "latency-format");
-  setkernvar(traceroptions, "nosym-offset");
-  setkernvar(traceroptions, "nosym-addr");
-  setkernvar(traceroptions, "noverbose");
-  setkernvar("tracing_max_latency", "0");
-
-  if (trace_file_exists("latency_hist"))
-    setkernvar("latency_hist/wakeup/reset", "1");
-
   /* open the tracing on file descriptor */
   if (trace_fd == -1) {
     char path[MAX_PATH];