scripts/rt-tester/rt-tester.py

   1 #!/usr/bin/python
   2 #
   3 # rt-mutex tester
   4 #
   5 # (C) 2006 Thomas Gleixner <tglx@linutronix.de>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License version 2 as
   9 # published by the Free Software Foundation.
  10 #
  11 import os
  12 import sys
  13 import getopt
  14 import shutil
  15 import string
  16
  17 # Globals
  18 quiet = 0
  19 test = 0
  20 comments = 0
  21
  22 sysfsprefix = "/sys/devices/system/rttest/rttest"
  23 statusfile = "/status"
  24 commandfile = "/command"
  25
  26 # Command opcodes
  27 cmd_opcodes = {
  28     "schedother"    : "1",
  29     "schedfifo"     : "2",
  30     "lock"          : "3",
  31     "locknowait"    : "4",
  32     "lockint"       : "5",
  33     "lockintnowait" : "6",
  34     "lockcont"      : "7",
  35     "unlock"        : "8",
  36     "signal"        : "11",
  37     "resetevent"    : "98",
  38     "reset"         : "99",
  39     }
  40
  41 test_opcodes = {
  42     "prioeq"        : ["P" , "eq" , None],
  43     "priolt"        : ["P" , "lt" , None],
  44     "priogt"        : ["P" , "gt" , None],
  45     "nprioeq"       : ["N" , "eq" , None],
  46     "npriolt"       : ["N" , "lt" , None],
  47     "npriogt"       : ["N" , "gt" , None],
  48     "unlocked"      : ["M" , "eq" , 0],
  49     "trylock"       : ["M" , "eq" , 1],
  50     "blocked"       : ["M" , "eq" , 2],
  51     "blockedwake"   : ["M" , "eq" , 3],
  52     "locked"        : ["M" , "eq" , 4],
  53     "opcodeeq"      : ["O" , "eq" , None],
  54     "opcodelt"      : ["O" , "lt" , None],
  55     "opcodegt"      : ["O" , "gt" , None],
  56     "eventeq"       : ["E" , "eq" , None],
  57     "eventlt"       : ["E" , "lt" , None],
  58     "eventgt"       : ["E" , "gt" , None],
  59     }
  60
  61 # Print usage information
  62 def usage():
  63     print "rt-tester.py <-c -h -q -t> <testfile>"
  64     print " -c    display comments after first command"
  65     print " -h    help"
  66     print " -q    quiet mode"
  67     print " -t    test mode (syntax check)"
  68     print " testfile: read test specification from testfile"
  69     print " otherwise from stdin"
  70     return
  71
  72 # Print progress when not in quiet mode
  73 def progress(str):
  74     if not quiet:
  75         print str
  76
  77 # Analyse a status value
  78 def analyse(val, top, arg):
  79
  80     intval = int(val)
  81
  82     if top[0] == "M":
  83         intval = intval / (10 ** int(arg))
  84         intval = intval % 10
  85         argval = top[2]
  86     elif top[0] == "O":
  87         argval = int(cmd_opcodes.get(arg, arg))
  88     else:
  89         argval = int(arg)
  90
  91     # progress("%d %s %d" %(intval, top[1], argval))
  92
  93     if top[1] == "eq" and intval == argval:
  94         return 1
  95     if top[1] == "lt" and intval < argval:
  96         return 1
  97     if top[1] == "gt" and intval > argval:
  98         return 1
  99     return 0
 100
 101 # Parse the commandline
 102 try:
 103     (options, arguments) = getopt.getopt(sys.argv[1:],'chqt')
 104 except getopt.GetoptError, ex:
 105     usage()
 106     sys.exit(1)
 107
 108 # Parse commandline options
 109 for option, value in options:
 110     if option == "-c":
 111         comments = 1
 112     elif option == "-q":
 113         quiet = 1
 114     elif option == "-t":
 115         test = 1
 116     elif option == '-h':
 117         usage()
 118         sys.exit(0)
 119
 120 # Select the input source
 121 if arguments:
 122     try:
 123         fd = open(arguments[0])
 124     except Exception,ex:
 125         sys.stderr.write("File not found %s\n" %(arguments[0]))
 126         sys.exit(1)
 127 else:
 128     fd = sys.stdin
 129
 130 linenr = 0
 131
 132 # Read the test patterns
 133 while 1:
 134
 135     linenr = linenr + 1
 136     line = fd.readline()
 137     if not len(line):
 138         break
 139
 140     line = line.strip()
 141     parts = line.split(":")
 142
 143     if not parts or len(parts) < 1:
 144         continue
 145
 146     if len(parts[0]) == 0:
 147         continue
 148
 149     if parts[0].startswith("#"):
 150         if comments > 1:
 151             progress(line)
 152         continue
 153
 154     if comments == 1:
 155         comments = 2
 156
 157     progress(line)
 158
 159     cmd = parts[0].strip().lower()
 160     opc = parts[1].strip().lower()
 161     tid = parts[2].strip()
 162     dat = parts[3].strip()
 163
 164     try:
 165         # Test or wait for a status value
 166         if cmd == "t" or cmd == "w":
 167             testop = test_opcodes[opc]
 168
 169             fname = "%s%s%s" %(sysfsprefix, tid, statusfile)
 170             if test:
 171                 print fname
 172                 continue
 173
 174             while 1:
 175                 query = 1
 176                 fsta = open(fname, 'r')
 177                 status = fsta.readline().strip()
 178                 fsta.close()
 179                 stat = status.split(",")
 180                 for s in stat:
 181                     s = s.strip()
 182                     if s.startswith(testop[0]):
 183                         # Separate status value
 184                         val = s[2:].strip()
 185                         query = analyse(val, testop, dat)
 186                         break
 187                 if query or cmd == "t":
 188                     break
 189
 190             progress("   " + status)
 191
 192             if not query:
 193                 sys.stderr.write("Test failed in line %d\n" %(linenr))
 194                 sys.exit(1)
 195
 196         # Issue a command to the tester
 197         elif cmd == "c":
 198             cmdnr = cmd_opcodes[opc]
 199             # Build command string and sys filename
 200             cmdstr = "%s:%s" %(cmdnr, dat)
 201             fname = "%s%s%s" %(sysfsprefix, tid, commandfile)
 202             if test:
 203                 print fname
 204                 continue
 205             fcmd = open(fname, 'w')
 206             fcmd.write(cmdstr)
 207             fcmd.close()
 208
 209     except Exception,ex:
 210         sys.stderr.write(str(ex))
 211         sys.stderr.write("\nSyntax error in line %d\n" %(linenr))
 212         if not test:
 213             fd.close()
 214             sys.exit(1)
 215
 216 # Normal exit pass
 217 print "Pass"
 218 sys.exit(0)
 219
 220