1#!/bin/sh
2
3# ftracetest - Ftrace test shell scripts
4#
5# Copyright (C) Hitachi Ltd., 2014
6#  Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
7#
8# Released under the terms of the GPL v2.
9
10usage() { # errno [message]
11[ "$2" ] && echo $2
12echo "Usage: ftracetest [options] [testcase(s)] [testcase-directory(s)]"
13echo " Options:"
14echo "		-h|--help  Show help message"
15echo "		-k|--keep  Keep passed test logs"
16echo "		-v|--verbose Increase verbosity of test messages"
17echo "		-vv        Alias of -v -v (Show all results in stdout)"
18echo "		-vvv       Alias of -v -v -v (Show all commands immediately)"
19echo "		--fail-unsupported Treat UNSUPPORTED as a failure"
20echo "		-d|--debug Debug mode (trace all shell commands)"
21echo "		-l|--logdir <dir> Save logs on the <dir>"
22echo "		            If <dir> is -, all logs output in console only"
23exit $1
24}
25
26errexit() { # message
27  echo "Error: $1" 1>&2
28  exit 1
29}
30
31# Ensuring user privilege
32if [ `id -u` -ne 0 ]; then
33  errexit "this must be run by root user"
34fi
35
36# Utilities
37absdir() { # file_path
38  (cd `dirname $1`; pwd)
39}
40
41abspath() {
42  echo `absdir $1`/`basename $1`
43}
44
45find_testcases() { #directory
46  echo `find $1 -name \*.tc | sort`
47}
48
49parse_opts() { # opts
50  local OPT_TEST_CASES=
51  local OPT_TEST_DIR=
52
53  while [ "$1" ]; do
54    case "$1" in
55    --help|-h)
56      usage 0
57    ;;
58    --keep|-k)
59      KEEP_LOG=1
60      shift 1
61    ;;
62    --verbose|-v|-vv|-vvv)
63      VERBOSE=$((VERBOSE + 1))
64      [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
65      [ $1 = '-vvv' ] && VERBOSE=$((VERBOSE + 2))
66      shift 1
67    ;;
68    --debug|-d)
69      DEBUG=1
70      shift 1
71    ;;
72    --fail-unsupported)
73      UNSUPPORTED_RESULT=1
74      shift 1
75    ;;
76    --logdir|-l)
77      LOG_DIR=$2
78      shift 2
79    ;;
80    *.tc)
81      if [ -f "$1" ]; then
82        OPT_TEST_CASES="$OPT_TEST_CASES `abspath $1`"
83        shift 1
84      else
85        usage 1 "$1 is not a testcase"
86      fi
87      ;;
88    *)
89      if [ -d "$1" ]; then
90        OPT_TEST_DIR=`abspath $1`
91        OPT_TEST_CASES="$OPT_TEST_CASES `find_testcases $OPT_TEST_DIR`"
92        shift 1
93      else
94        usage 1 "Invalid option ($1)"
95      fi
96    ;;
97    esac
98  done
99  if [ "$OPT_TEST_CASES" ]; then
100    TEST_CASES=$OPT_TEST_CASES
101  fi
102}
103
104# Parameters
105DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
106if [ -z "$DEBUGFS_DIR" ]; then
107    TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
108else
109    TRACING_DIR=$DEBUGFS_DIR/tracing
110fi
111
112TOP_DIR=`absdir $0`
113TEST_DIR=$TOP_DIR/test.d
114TEST_CASES=`find_testcases $TEST_DIR`
115LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`/
116KEEP_LOG=0
117DEBUG=0
118VERBOSE=0
119UNSUPPORTED_RESULT=0
120# Parse command-line options
121parse_opts $*
122
123[ $DEBUG -ne 0 ] && set -x
124
125# Verify parameters
126if [ -z "$TRACING_DIR" -o ! -d "$TRACING_DIR" ]; then
127  errexit "No ftrace directory found"
128fi
129
130# Preparing logs
131if [ "x$LOG_DIR" = "x-" ]; then
132  LOG_FILE=
133  date
134else
135  LOG_FILE=$LOG_DIR/ftracetest.log
136  mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
137  date > $LOG_FILE
138fi
139
140prlog() { # messages
141  [ -z "$LOG_FILE" ] && echo "$@" || echo "$@" | tee -a $LOG_FILE
142}
143catlog() { #file
144  [ -z "$LOG_FILE" ] && cat $1 || cat $1 | tee -a $LOG_FILE
145}
146prlog "=== Ftrace unit tests ==="
147
148
149# Testcase management
150# Test result codes - Dejagnu extended code
151PASS=0	# The test succeeded.
152FAIL=1	# The test failed, but was expected to succeed.
153UNRESOLVED=2  # The test produced indeterminate results. (e.g. interrupted)
154UNTESTED=3    # The test was not run, currently just a placeholder.
155UNSUPPORTED=4 # The test failed because of lack of feature.
156XFAIL=5	# The test failed, and was expected to fail.
157
158# Accumulations
159PASSED_CASES=
160FAILED_CASES=
161UNRESOLVED_CASES=
162UNTESTED_CASES=
163UNSUPPORTED_CASES=
164XFAILED_CASES=
165UNDEFINED_CASES=
166TOTAL_RESULT=0
167
168INSTANCE=
169CASENO=0
170testcase() { # testfile
171  CASENO=$((CASENO+1))
172  desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
173  prlog -n "[$CASENO]$INSTANCE$desc"
174}
175
176test_on_instance() { # testfile
177  grep -q "^#[ \t]*flags:.*instance" $1
178}
179
180eval_result() { # sigval
181  case $1 in
182    $PASS)
183      prlog "	[PASS]"
184      PASSED_CASES="$PASSED_CASES $CASENO"
185      return 0
186    ;;
187    $FAIL)
188      prlog "	[FAIL]"
189      FAILED_CASES="$FAILED_CASES $CASENO"
190      return 1 # this is a bug.
191    ;;
192    $UNRESOLVED)
193      prlog "	[UNRESOLVED]"
194      UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
195      return 1 # this is a kind of bug.. something happened.
196    ;;
197    $UNTESTED)
198      prlog "	[UNTESTED]"
199      UNTESTED_CASES="$UNTESTED_CASES $CASENO"
200      return 0
201    ;;
202    $UNSUPPORTED)
203      prlog "	[UNSUPPORTED]"
204      UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO"
205      return $UNSUPPORTED_RESULT # depends on use case
206    ;;
207    $XFAIL)
208      prlog "	[XFAIL]"
209      XFAILED_CASES="$XFAILED_CASES $CASENO"
210      return 0
211    ;;
212    *)
213      prlog "	[UNDEFINED]"
214      UNDEFINED_CASES="$UNDEFINED_CASES $CASENO"
215      return 1 # this must be a test bug
216    ;;
217  esac
218}
219
220# Signal handling for result codes
221SIG_RESULT=
222SIG_BASE=36	# Use realtime signals
223SIG_PID=$$
224
225SIG_FAIL=$((SIG_BASE + FAIL))
226trap 'SIG_RESULT=$FAIL' $SIG_FAIL
227
228SIG_UNRESOLVED=$((SIG_BASE + UNRESOLVED))
229exit_unresolved () {
230  kill -s $SIG_UNRESOLVED $SIG_PID
231  exit 0
232}
233trap 'SIG_RESULT=$UNRESOLVED' $SIG_UNRESOLVED
234
235SIG_UNTESTED=$((SIG_BASE + UNTESTED))
236exit_untested () {
237  kill -s $SIG_UNTESTED $SIG_PID
238  exit 0
239}
240trap 'SIG_RESULT=$UNTESTED' $SIG_UNTESTED
241
242SIG_UNSUPPORTED=$((SIG_BASE + UNSUPPORTED))
243exit_unsupported () {
244  kill -s $SIG_UNSUPPORTED $SIG_PID
245  exit 0
246}
247trap 'SIG_RESULT=$UNSUPPORTED' $SIG_UNSUPPORTED
248
249SIG_XFAIL=$((SIG_BASE + XFAIL))
250exit_xfail () {
251  kill -s $SIG_XFAIL $SIG_PID
252  exit 0
253}
254trap 'SIG_RESULT=$XFAIL' $SIG_XFAIL
255
256__run_test() { # testfile
257  # setup PID and PPID, $$ is not updated.
258  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x; initialize_ftrace; . $1)
259  [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID
260}
261
262# Run one test case
263run_test() { # testfile
264  local testname=`basename $1`
265  if [ ! -z "$LOG_FILE" ] ; then
266    local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`
267  else
268    local testlog=/proc/self/fd/1
269  fi
270  export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX`
271  testcase $1
272  echo "execute$INSTANCE: "$1 > $testlog
273  SIG_RESULT=0
274  if [ -z "$LOG_FILE" ]; then
275    __run_test $1 2>&1
276  elif [ $VERBOSE -ge 3 ]; then
277    __run_test $1 | tee -a $testlog 2>&1
278  elif [ $VERBOSE -eq 2 ]; then
279    __run_test $1 2>> $testlog | tee -a $testlog
280  else
281    __run_test $1 >> $testlog 2>&1
282  fi
283  eval_result $SIG_RESULT
284  if [ $? -eq 0 ]; then
285    # Remove test log if the test was done as it was expected.
286    [ $KEEP_LOG -eq 0 -a ! -z "$LOG_FILE" ] && rm $testlog
287  else
288    [ $VERBOSE -eq 1 -o $VERBOSE -eq 2 ] && catlog $testlog
289    TOTAL_RESULT=1
290  fi
291  rm -rf $TMPDIR
292}
293
294# load in the helper functions
295. $TEST_DIR/functions
296
297# Main loop
298for t in $TEST_CASES; do
299  run_test $t
300done
301
302# Test on instance loop
303INSTANCE=" (instance) "
304for t in $TEST_CASES; do
305  test_on_instance $t || continue
306  SAVED_TRACING_DIR=$TRACING_DIR
307  export TRACING_DIR=`mktemp -d $TRACING_DIR/instances/ftracetest.XXXXXX`
308  run_test $t
309  rmdir $TRACING_DIR
310  TRACING_DIR=$SAVED_TRACING_DIR
311done
312
313prlog ""
314prlog "# of passed: " `echo $PASSED_CASES | wc -w`
315prlog "# of failed: " `echo $FAILED_CASES | wc -w`
316prlog "# of unresolved: " `echo $UNRESOLVED_CASES | wc -w`
317prlog "# of untested: " `echo $UNTESTED_CASES | wc -w`
318prlog "# of unsupported: " `echo $UNSUPPORTED_CASES | wc -w`
319prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w`
320prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w`
321
322# if no error, return 0
323exit $TOTAL_RESULT
324