Import LinuxCNC source tree

tests/hm2-idrom/check-dmesg.py

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+#!/usr/bin/env python3
+
+#
+# Here's the kind of output we're looking for:
+# 
+# [87900.133189] hm2: loading Mesa HostMot2 driver version 0.14
+# [87900.157678] hm2_test: loading HostMot2 test driver
+# [87900.157715] hm2: no firmware specified in config modparam!  the board had better have firmware configured already, or this won't work
+# [87900.157724] hm2/hm2_test.0: invalid cookie, got 0x00000000, expected 0x55AACAFE
+# [87900.157726] hm2/hm2_test.0: FPGA failed to initialize, or unexpected firmware?
+# [87900.157731] hm2_test.0: hm2_test fails HM2 registration
+# [87900.236858] hm2: unloading
+
+import os
+import sys
+import re
+import hal
+
+hm2_test_load = 'loading HostMot2 test driver'
+hm2_test_unload = 'hm2_test.0: hm2_test fails HM2 registration'
+
+sought_error = sys.argv[1]
+if sought_error == None:
+    print("supply an error message on the command line!")
+    sys.exit(1)
+
+
+# is this how you do enum in python?
+LOOKING_FOR_LOAD, LOOKING_FOR_ERROR = list(range(2))
+
+if hal.is_kernelspace:
+    dmesg = os.popen('dmesg')
+else:
+    dmesg = open("halrun-stderr")
+
+output = ""
+
+state = LOOKING_FOR_LOAD
+result = 1
+while 1:
+    line = dmesg.readline()
+    output += line
+    if line == "": break  # eof
+
+    if state == LOOKING_FOR_LOAD:
+        if line.find(hm2_test_load) < 0: continue
+        state = LOOKING_FOR_ERROR
+        result = 1  # assume it's the wrong error for now
+        continue
+
+    if state == LOOKING_FOR_ERROR:
+        if re.search(sought_error, line) != None:
+            result = 0
+            state = LOOKING_FOR_LOAD
+            continue;
+
+        if line.find(hm2_test_unload) >= 0:
+            state = LOOKING_FOR_LOAD
+
+
+if (result == 0):
+    print(sought_error)
+else:
+    print("test pattern %s did not produce error '%s'" % (os.getenv("TEST_PATTERN"), sought_error))
+    print("actual output:")
+    print(output)
+
+sys.exit(result)
+