summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/ftrace/ftracetest
blob: c778d4dcc17e58523193ffad46a79212b3e721cd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-only

# ftracetest - Ftrace test shell scripts
#
# Copyright (C) Hitachi Ltd., 2014
#  Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
#

usage() { # errno [message]
[ ! -z "$2" ] && echo $2
echo "Usage: ftracetest [options] [testcase(s)] [testcase-directory(s)]"
echo " Options:"
echo "		-h|--help  Show help message"
echo "		-k|--keep  Keep passed test logs"
echo "		-K|--ktap  Output in KTAP format"
echo "		-v|--verbose Increase verbosity of test messages"
echo "		-vv        Alias of -v -v (Show all results in stdout)"
echo "		-vvv       Alias of -v -v -v (Show all commands immediately)"
echo "		--fail-unsupported Treat UNSUPPORTED as a failure"
echo "		--fail-unresolved Treat UNRESOLVED as a failure"
echo "		-d|--debug Debug mode (trace all shell commands)"
echo "		-l|--logdir <dir> Save logs on the <dir>"
echo "		            If <dir> is -, all logs output in console only"
exit $1
}

# default error
err_ret=1

# kselftest skip code is 4
err_skip=4

# umount required
UMOUNT_DIR=""

# cgroup RT scheduling prevents chrt commands from succeeding, which
# induces failures in test wakeup tests.  Disable for the duration of
# the tests.

readonly sched_rt_runtime=/proc/sys/kernel/sched_rt_runtime_us

sched_rt_runtime_orig=$(cat $sched_rt_runtime)

setup() {
  echo -1 > $sched_rt_runtime
}

cleanup() {
  echo $sched_rt_runtime_orig > $sched_rt_runtime
  if [ -n "${UMOUNT_DIR}" ]; then
    umount ${UMOUNT_DIR} ||:
  fi
}

errexit() { # message
  echo "Error: $1" 1>&2
  cleanup
  exit $err_ret
}

# Ensuring user privilege
if [ `id -u` -ne 0 ]; then
  errexit "this must be run by root user"
fi

setup

# Utilities
absdir() { # file_path
  (cd `dirname $1`; pwd)
}

abspath() {
  echo `absdir $1`/`basename $1`
}

find_testcases() { #directory
  echo `find $1 -name \*.tc | sort`
}

parse_opts() { # opts
  local OPT_TEST_CASES=
  local OPT_TEST_DIR=

  while [ ! -z "$1" ]; do
    case "$1" in
    --help|-h)
      usage 0
    ;;
    --keep|-k)
      KEEP_LOG=1
      shift 1
    ;;
    --ktap|-K)
      KTAP=1
      shift 1
    ;;
    --verbose|-v|-vv|-vvv)
      if [ $VERBOSE -eq -1 ]; then
	usage "--console can not use with --verbose"
      fi
      VERBOSE=$((VERBOSE + 1))
      [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
      [ $1 = '-vvv' ] && VERBOSE=$((VERBOSE + 2))
      shift 1
    ;;
    --console)
      if [ $VERBOSE -ne 0 ]; then
	usage "--console can not use with --verbose"
      fi
      VERBOSE=-1
      shift 1
    ;;
    --debug|-d)
      DEBUG=1
      shift 1
    ;;
    --stop-fail)
      STOP_FAILURE=1
      shift 1
    ;;
    --fail-unsupported)
      UNSUPPORTED_RESULT=1
      shift 1
    ;;
    --fail-unresolved)
      UNRESOLVED_RESULT=1
      shift 1
    ;;
    --logdir|-l)
      LOG_DIR=$2
      LINK_PTR=
      shift 2
    ;;
    *.tc)
      if [ -f "$1" ]; then
        OPT_TEST_CASES="$OPT_TEST_CASES `abspath $1`"
        shift 1
      else
        usage 1 "$1 is not a testcase"
      fi
      ;;
    *)
      if [ -d "$1" ]; then
        OPT_TEST_DIR=`abspath $1`
        OPT_TEST_CASES="$OPT_TEST_CASES `find_testcases $OPT_TEST_DIR`"
        shift 1
      else
        usage 1 "Invalid option ($1)"
      fi
    ;;
    esac
  done
  if [ ! -z "$OPT_TEST_CASES" ]; then
    TEST_CASES=$OPT_TEST_CASES
  fi
}

# Parameters
TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
if [ -z "$TRACING_DIR" ]; then
    DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
    if [ -z "$DEBUGFS_DIR" ]; then
	# If tracefs exists, then so does /sys/kernel/tracing
	if [ -d "/sys/kernel/tracing" ]; then
	    mount -t tracefs nodev /sys/kernel/tracing ||
	      errexit "Failed to mount /sys/kernel/tracing"
	    TRACING_DIR="/sys/kernel/tracing"
	    UMOUNT_DIR=${TRACING_DIR}
	# If debugfs exists, then so does /sys/kernel/debug
	elif [ -d "/sys/kernel/debug" ]; then
	    mount -t debugfs nodev /sys/kernel/debug ||
	      errexit "Failed to mount /sys/kernel/debug"
	    TRACING_DIR="/sys/kernel/debug/tracing"
	    UMOUNT_DIR=${TRACING_DIR}
	else
	    err_ret=$err_skip
	    errexit "debugfs and tracefs are not configured in this kernel"
	fi
    else
	TRACING_DIR="$DEBUGFS_DIR/tracing"
    fi
fi
if [ ! -d "$TRACING_DIR" ]; then
    err_ret=$err_skip
    errexit "ftrace is not configured in this kernel"
fi

TOP_DIR=`absdir $0`
TEST_DIR=$TOP_DIR/test.d
TEST_CASES=`find_testcases $TEST_DIR`
LOG_TOP_DIR=$TOP_DIR/logs
LOG_DATE=`date +%Y%m%d-%H%M%S`
LOG_DIR=$LOG_TOP_DIR/$LOG_DATE/
LINK_PTR=$LOG_TOP_DIR/latest
KEEP_LOG=0
KTAP=0
DEBUG=0
VERBOSE=0
UNSUPPORTED_RESULT=0
UNRESOLVED_RESULT=0
STOP_FAILURE=0
# Parse command-line options
parse_opts $*

[ $DEBUG -ne 0 ] && set -x

# Verify parameters
if [ -z "$TRACING_DIR" -o ! -d "$TRACING_DIR" ]; then
  errexit "No ftrace directory found"
fi

# Preparing logs
if [ "x$LOG_DIR" = "x-" ]; then
  LOG_FILE=
  date
else
  LOG_FILE=$LOG_DIR/ftracetest.log
  mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
  date > $LOG_FILE
  if [ "x-$LINK_PTR" != "x-" ]; then
    unlink $LINK_PTR
    ln -fs $LOG_DATE $LINK_PTR
  fi
fi

# Define text colors
# Check available colors on the terminal, if any
ncolors=`tput colors 2>/dev/null || echo 0`
color_reset=
color_red=
color_green=
color_blue=
# If stdout exists and number of colors is eight or more, use them
if [ -t 1 -a "$ncolors" -ge 8 ]; then
  color_reset="\033[0m"
  color_red="\033[31m"
  color_green="\033[32m"
  color_blue="\033[34m"
fi

strip_esc() {
  # busybox sed implementation doesn't accept "\x1B", so use [:cntrl:] instead.
  sed -E "s/[[:cntrl:]]\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g"
}

prlog() { # messages
  newline="\n"
  if [ "$1" = "-n" ] ; then
    newline=
    shift
  fi
  [ "$KTAP" != "1" ] && printf "$*$newline"
  [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
}
catlog() { #file
  cat $1
  [ "$LOG_FILE" ] && cat $1 | strip_esc >> $LOG_FILE
}
prlog "=== Ftrace unit tests ==="


# Testcase management
# Test result codes - Dejagnu extended code
PASS=0	# The test succeeded.
FAIL=1	# The test failed, but was expected to succeed.
UNRESOLVED=2  # The test produced indeterminate results. (e.g. interrupted)
UNTESTED=3    # The test was not run, currently just a placeholder.
UNSUPPORTED=4 # The test failed because of lack of feature.
XFAIL=5	# The test failed, and was expected to fail.

# Accumulations
PASSED_CASES=
FAILED_CASES=
UNRESOLVED_CASES=
UNTESTED_CASES=
UNSUPPORTED_CASES=
XFAILED_CASES=
UNDEFINED_CASES=
TOTAL_RESULT=0

INSTANCE=
CASENO=0
CASENAME=

testcase() { # testfile
  CASENO=$((CASENO+1))
  CASENAME=`grep "^#[ \t]*description:" $1 | cut -f2- -d:`
}

checkreq() { # testfile
  requires=`grep "^#[ \t]*requires:" $1 | cut -f2- -d:`
  # Use eval to pass quoted-patterns correctly.
  eval check_requires "$requires"
}

test_on_instance() { # testfile
  grep -q "^#[ \t]*flags:.*instance" $1
}

ktaptest() { # result comment
  if [ "$KTAP" != "1" ]; then
    return
  fi

  local result=
  if [ "$1" = "1" ]; then
    result="ok"
  else
    result="not ok"
  fi
  shift

  local comment=$*
  if [ "$comment" != "" ]; then
    comment="# $comment"
  fi

  echo $result $CASENO $INSTANCE$CASENAME $comment
}

eval_result() { # sigval
  case $1 in
    $PASS)
      prlog "	[${color_green}PASS${color_reset}]"
      ktaptest 1
      PASSED_CASES="$PASSED_CASES $CASENO"
      return 0
    ;;
    $FAIL)
      prlog "	[${color_red}FAIL${color_reset}]"
      ktaptest 0
      FAILED_CASES="$FAILED_CASES $CASENO"
      return 1 # this is a bug.
    ;;
    $UNRESOLVED)
      prlog "	[${color_blue}UNRESOLVED${color_reset}]"
      ktaptest 0 UNRESOLVED
      UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
      return $UNRESOLVED_RESULT # depends on use case
    ;;
    $UNTESTED)
      prlog "	[${color_blue}UNTESTED${color_reset}]"
      ktaptest 1 SKIP
      UNTESTED_CASES="$UNTESTED_CASES $CASENO"
      return 0
    ;;
    $UNSUPPORTED)
      prlog "	[${color_blue}UNSUPPORTED${color_reset}]"
      ktaptest 1 SKIP
      UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO"
      return $UNSUPPORTED_RESULT # depends on use case
    ;;
    $XFAIL)
      prlog "	[${color_green}XFAIL${color_reset}]"
      ktaptest 1 XFAIL
      XFAILED_CASES="$XFAILED_CASES $CASENO"
      return 0
    ;;
    *)
      prlog "	[${color_blue}UNDEFINED${color_reset}]"
      ktaptest 0 error
      UNDEFINED_CASES="$UNDEFINED_CASES $CASENO"
      return 1 # this must be a test bug
    ;;
  esac
}

# Signal handling for result codes
SIG_RESULT=
SIG_BASE=36	# Use realtime signals
SIG_PID=$$

exit_pass () {
  exit 0
}

SIG_FAIL=$((SIG_BASE + FAIL))
exit_fail () {
  exit 1
}
trap 'SIG_RESULT=$FAIL' $SIG_FAIL

SIG_UNRESOLVED=$((SIG_BASE + UNRESOLVED))
exit_unresolved () {
  kill -s $SIG_UNRESOLVED $SIG_PID
  exit 0
}
trap 'SIG_RESULT=$UNRESOLVED' $SIG_UNRESOLVED

SIG_UNTESTED=$((SIG_BASE + UNTESTED))
exit_untested () {
  kill -s $SIG_UNTESTED $SIG_PID
  exit 0
}
trap 'SIG_RESULT=$UNTESTED' $SIG_UNTESTED

SIG_UNSUPPORTED=$((SIG_BASE + UNSUPPORTED))
exit_unsupported () {
  kill -s $SIG_UNSUPPORTED $SIG_PID
  exit 0
}
trap 'SIG_RESULT=$UNSUPPORTED' $SIG_UNSUPPORTED

SIG_XFAIL=$((SIG_BASE + XFAIL))
exit_xfail () {
  kill -s $SIG_XFAIL $SIG_PID
  exit 0
}
trap 'SIG_RESULT=$XFAIL' $SIG_XFAIL

__run_test() { # testfile
  # setup PID and PPID, $$ is not updated.
  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x;
   checkreq $1; initialize_ftrace; . $1)
  [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID
}

# Run one test case
run_test() { # testfile
  local testname=`basename $1`
  testcase $1
  prlog -n "[$CASENO]$INSTANCE$CASENAME"
  if [ ! -z "$LOG_FILE" ] ; then
    local testlog=`mktemp $LOG_DIR/${CASENO}-${testname}-log.XXXXXX`
  else
    local testlog=/proc/self/fd/1
  fi
  export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX`
  export FTRACETEST_ROOT=$TOP_DIR
  echo "execute$INSTANCE: "$1 > $testlog
  SIG_RESULT=0
  if [ $VERBOSE -eq -1 ]; then
    __run_test $1
  elif [ -z "$LOG_FILE" ]; then
    __run_test $1 2>&1
  elif [ $VERBOSE -ge 3 ]; then
    __run_test $1 | tee -a $testlog 2>&1
  elif [ $VERBOSE -eq 2 ]; then
    __run_test $1 2>> $testlog | tee -a $testlog
  else
    __run_test $1 >> $testlog 2>&1
  fi
  eval_result $SIG_RESULT
  if [ $? -eq 0 ]; then
    # Remove test log if the test was done as it was expected.
    [ $KEEP_LOG -eq 0 -a ! -z "$LOG_FILE" ] && rm $testlog
  else
    [ $VERBOSE -eq 1 -o $VERBOSE -eq 2 ] && catlog $testlog
    TOTAL_RESULT=1
  fi
  rm -rf $TMPDIR
}

# load in the helper functions
. $TEST_DIR/functions

if [ "$KTAP" = "1" ]; then
  echo "TAP version 13"

  casecount=`echo $TEST_CASES | wc -w`
  for t in $TEST_CASES; do
    test_on_instance $t || continue
    casecount=$((casecount+1))
  done
  echo "1..${casecount}"
fi

# Main loop
for t in $TEST_CASES; do
  run_test $t
  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
    echo "A failure detected. Stop test."
    exit 1
  fi
done

# Test on instance loop
INSTANCE=" (instance) "
for t in $TEST_CASES; do
  test_on_instance $t || continue
  SAVED_TRACING_DIR=$TRACING_DIR
  export TRACING_DIR=`mktemp -d $TRACING_DIR/instances/ftracetest.XXXXXX`
  run_test $t
  rmdir $TRACING_DIR
  TRACING_DIR=$SAVED_TRACING_DIR
  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
    echo "A failure detected. Stop test."
    exit 1
  fi
done
(cd $TRACING_DIR; finish_ftrace) # for cleanup

prlog ""
prlog "# of passed: " `echo $PASSED_CASES | wc -w`
prlog "# of failed: " `echo $FAILED_CASES | wc -w`
prlog "# of unresolved: " `echo $UNRESOLVED_CASES | wc -w`
prlog "# of untested: " `echo $UNTESTED_CASES | wc -w`
prlog "# of unsupported: " `echo $UNSUPPORTED_CASES | wc -w`
prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w`
prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w`

if [ "$KTAP" = "1" ]; then
  echo -n "# Totals:"
  echo -n " pass:"`echo $PASSED_CASES | wc -w`
  echo -n " faii:"`echo $FAILED_CASES | wc -w`
  echo -n " xfail:"`echo $XFAILED_CASES | wc -w`
  echo -n " xpass:0"
  echo -n " skip:"`echo $UNTESTED_CASES $UNSUPPORTED_CASES | wc -w`
  echo -n " error:"`echo $UNRESOLVED_CASES $UNDEFINED_CASES | wc -w`
  echo
fi

cleanup

# if no error, return 0
exit $TOTAL_RESULT