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     "lockbkl"       : "9",
  37     "unlockbkl"     : "10",
  38     "signal"        : "11",
  39     "resetevent"    : "98",
  40     "reset"         : "99",
  41     }
  42
  43 test_opcodes = {
  44     "prioeq"        : ["P" , "eq" , None],
  45     "priolt"        : ["P" , "lt" , None],
  46     "priogt"        : ["P" , "gt" , None],
  47     "nprioeq"       : ["N" , "eq" , None],
  48     "npriolt"       : ["N" , "lt" , None],
  49     "npriogt"       : ["N" , "gt" , None],
  50     "unlocked"      : ["M" , "eq" , 0],
  51     "trylock"       : ["M" , "eq" , 1],
  52     "blocked"       : ["M" , "eq" , 2],
  53     "blockedwake"   : ["M" , "eq" , 3],
  54     "locked"        : ["M" , "eq" , 4],
  55     "opcodeeq"      : ["O" , "eq" , None],
  56     "opcodelt"      : ["O" , "lt" , None],
  57     "opcodegt"      : ["O" , "gt" , None],
  58     "eventeq"       : ["E" , "eq" , None],
  59     "eventlt"       : ["E" , "lt" , None],
  60     "eventgt"       : ["E" , "gt" , None],
  61     }
  62
  63 # Print usage information
  64 def usage():
  65     print "rt-tester.py <-c -h -q -t> <testfile>"
  66     print " -c    display comments after first command"
  67     print " -h    help"
  68     print " -q    quiet mode"
  69     print " -t    test mode (syntax check)"
  70     print " testfile: read test specification from testfile"
  71     print " otherwise from stdin"
  72     return
  73
  74 # Print progress when not in quiet mode
  75 def progress(str):
  76     if not quiet:
  77         print str
  78
  79 # Analyse a status value
  80 def analyse(val, top, arg):
  81
  82     intval = int(val)
  83
  84     if top[0] == "M":
  85         intval = intval / (10 ** int(arg))
  86         intval = intval % 10
  87         argval = top[2]
  88     elif top[0] == "O":
  89         argval = int(cmd_opcodes.get(arg, arg))
  90     else:
  91         argval = int(arg)
  92
  93     # progress("%d %s %d" %(intval, top[1], argval))
  94
  95     if top[1] == "eq" and intval == argval:
  96         return 1
  97     if top[1] == "lt" and intval < argval:
  98         return 1
  99     if top[1] == "gt" and intval > argval:
 100         return 1
 101     return 0
 102
 103 # Parse the commandline
 104 try:
 105     (options, arguments) = getopt.getopt(sys.argv[1:],'chqt')
 106 except getopt.GetoptError, ex:
 107     usage()
 108     sys.exit(1)
 109
 110 # Parse commandline options
 111 for option, value in options:
 112     if option == "-c":
 113         comments = 1
 114     elif option == "-q":
 115         quiet = 1
 116     elif option == "-t":
 117         test = 1
 118     elif option == '-h':
 119         usage()
 120         sys.exit(0)
 121
 122 # Select the input source
 123 if arguments:
 124     try:
 125         fd = open(arguments[0])
 126     except Exception,ex:
 127         sys.stderr.write("File not found %s\n" %(arguments[0]))
 128         sys.exit(1)
 129 else:
 130     fd = sys.stdin
 131
 132 linenr = 0
 133
 134 # Read the test patterns
 135 while 1:
 136
 137     linenr = linenr + 1
 138     line = fd.readline()
 139     if not len(line):
 140         break
 141
 142     line = line.strip()
 143     parts = line.split(":")
 144
 145     if not parts or len(parts) < 1:
 146         continue
 147
 148     if len(parts[0]) == 0:
 149         continue
 150
 151     if parts[0].startswith("#"):
 152         if comments > 1:
 153             progress(line)
 154         continue
 155
 156     if comments == 1:
 157         comments = 2
 158
 159     progress(line)
 160
 161     cmd = parts[0].strip().lower()
 162     opc = parts[1].strip().lower()
 163     tid = parts[2].strip()
 164     dat = parts[3].strip()
 165
 166     try:
 167         # Test or wait for a status value
 168         if cmd == "t" or cmd == "w":
 169             testop = test_opcodes[opc]
 170
 171             fname = "%s%s%s" %(sysfsprefix, tid, statusfile)
 172             if test:
 173                 print fname
 174                 continue
 175
 176             while 1:
 177                 query = 1
 178                 fsta = open(fname, 'r')
 179                 status = fsta.readline().strip()
 180                 fsta.close()
 181                 stat = status.split(",")
 182                 for s in stat:
 183                     s = s.strip()
 184                     if s.startswith(testop[0]):
 185                         # Seperate status value
 186                         val = s[2:].strip()
 187                         query = analyse(val, testop, dat)
 188                         break
 189                 if query or cmd == "t":
 190                     break
 191
 192             progress("   " + status)
 193
 194             if not query:
 195                 sys.stderr.write("Test failed in line %d\n" %(linenr))
 196                 sys.exit(1)
 197
 198         # Issue a command to the tester
 199         elif cmd == "c":
 200             cmdnr = cmd_opcodes[opc]
 201             # Build command string and sys filename
 202             cmdstr = "%s:%s" %(cmdnr, dat)
 203             fname = "%s%s%s" %(sysfsprefix, tid, commandfile)
 204             if test:
 205                 print fname
 206                 continue
 207             fcmd = open(fname, 'w')
 208             fcmd.write(cmdstr)
 209             fcmd.close()
 210
 211     except Exception,ex:
 212         sys.stderr.write(str(ex))
 213         sys.stderr.write("\nSyntax error in line %d\n" %(linenr))
 214         if not test:
 215             fd.close()
 216             sys.exit(1)
 217
 218 # Normal exit pass
 219 print "Pass"
 220 sys.exit(0)
 221
 222