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1#!/usr/bin/env 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#
11import os
12import sys
13import getopt
14import shutil
15import string
16
17# Globals
18quiet = 0
19test = 0
20comments = 0
21
22sysfsprefix = "/sys/devices/system/rttest/rttest"
23statusfile = "/status"
24commandfile = "/command"
25
26# Command opcodes
27cmd_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
43test_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
64def 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
75def progress(str):
76 if not quiet:
77 print str
78
79# Analyse a status value
80def 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
104try:
105 (options, arguments) = getopt.getopt(sys.argv[1:],'chqt')
106except getopt.GetoptError, ex:
107 usage()
108 sys.exit(1)
109
110# Parse commandline options
111for 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
123if 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)
129else:
130 fd = sys.stdin
131
132linenr = 0
133
134# Read the test patterns
135while 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
219print "Pass"
220sys.exit(0)
221
222