More very basic work on test driver

2 files changed, 43 insertions, 2 deletions

diff --git a/test_driver/make_devices b/test_driver/make_devices
new file mode 100644
index 0000000..4d4554b
--- /dev/null
+++ b/test_driver/make_devices
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+#Creates device drivers for traces (litmus_log, ft_trace and sched_trace)
+#Taken from http://www.cs.unc.edu/~anderson/litmus-rt/doc/tracing.html 
+
+LITMUS_LOG_MAJOR=`grep litmus_log /proc/devices | awk '{print $1}'`
+FT_TRACE_MAJOR=`grep ft_trace /proc/devices | awk '{print $1}'`
+SCHED_TRACE_MAJOR=`grep sched_trace /proc/devices | awk '{print $1}'`
+
+mknod litmus_log c $LITMUS_LOG_MAJOR 0
+mknod ft_trace   c $FT_TRACE_MAJOR   0
+
+NUM_PROCS=$((`grep 'processor' /proc/cpuinfo | wc -l` - 1))
+
+for P in `seq 0 $NUM_PROCS`
+do
+    mknod "sched_trace$P" c  $SCHED_TRACE_MAJOR  $P
+done
diff --git a/test_driver/test.py b/test_driver/test.py
index edd55ee..236f52e 100644
--- a/test_driver/test.py
+++ b/test_driver/test.py
@@ -3,10 +3,14 @@
 ##########
 
 #liblitmus directory
-liblitmus_dir = '/root/liblitmus'
+liblitmus_dir = '/root/liblitmus/'
 
 #ft_trace directory
-ft_trace_dir = '/root/ft_trace'
+ft_trace_dir = '/root/ft_trace/'
+
+#device files directory
+#You should put the make_devices program into this directory, and chmod +x it.
+device_dir = '/root/device_files/'
 
 #desired scheduling policy
 #options listed in /proc/litmus/plugins
@@ -29,6 +33,25 @@ def main():
     #Set scheduling policy
     os.system('cat ' + policy + ' > ' + '/proc/litmus/active_policy')
 
+    #Setup the device files for the traces
+    os.system(device_dir + 'make_devices')
+
+    #Set up environment variables needed for st_trace script
+    os.system('FTCAT=' + ft_trace_dir + 'ftcat')
+    os.system('FTDEV=' + device_dir)
+    os.system('export FTCAT')
+    os.system('export FTDEV')
+
+    #Current steps...
+    #Run st_trace
+    #Let it get set up, then suspend
+    #let it run in background with bg <job>
+    #Run rtspin 10 100 1000 twice; suspend, run in background
+    #Bring rtspins to foreground and stop them.
+    #Bring st_trace to foreground, hit enter to complete it.
+
+    #Need to try to do the above with rt_launch and then release_ts
+
 
 
 ##############